Refrigeration device
By adopting the door hinge design that separates the damping chamber in the refrigeration device, the damping force is generated by the flow of damping oil, the problem of too fast closing speed and high noise is solved, and a smooth and quiet closing effect is achieved.
Patent Information
- Application Number
- CN202422091737.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-27
AI Technical Summary
In the existing refrigeration device, when the door body is closed at a large door opening angle, the door closing speed is too fast and the noise is high, which affects the user experience.
The door hinge design is adopted, including a mounting shell, a rotary shaft member, a first seal and a second seal. The liquid storage chamber is divided into two damping chambers through a barrier rib, and the damping oil flows in the overflow gap to generate a damping force to buffer the door closing movement.
Reduces door closing speed, reduces noise, improves user experience, and achieves smooth closing of the door body.
Smart Images
Figure CN223121754U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of household appliances, and mainly relates to a refrigeration device. Background Art
[0002] In the fields of household and commercial refrigeration equipment, especially in products such as refrigerators and commercial refrigerated display cabinets, their main function is to reduce the temperature of food by consuming electric energy, so as to ensure the storage and edible taste of food.
[0003] Among them, by introducing a self-closing door structure with a torsion spring into the refrigerator, the energy consumption can be reduced and the temperature inside the refrigerator can be kept stable through the automatic closing function. However, when this self-closing door mechanism closes at a large opening angle, there will be problems such as too fast closing speed and loud noise, which will affect the overall user experience. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a refrigeration device to solve the problems of too fast closing speed and loud noise of the door body in the prior art.
[0005] To solve the above technical problems, the utility model adopts the following technical solutions:
[0006] The present application provides a refrigeration device, including:
[0007] A box body, which forms the outer shell of the refrigeration device;
[0008] A box liner, which is arranged inside the box body and constructs a refrigeration compartment with an opening at the front side;
[0009] A door body, which is arranged on the box body and used to open and close the refrigeration compartment;
[0010] A door hinge, which is arranged inside the box body. The door hinge includes a mounting shell, a rotating shaft member, a first sealing member and a second sealing member. The mounting shell is arranged on the box body. There is a liquid storage cavity inside the mounting shell. There is damping oil in the liquid storage cavity. One end of the rotating shaft member is rotatably arranged on the mounting shell and is located inside the liquid storage cavity. The other end of the rotating shaft member is connected to the door body. The first sealing member and the second sealing member are circumferentially spaced and arranged on the outer peripheral wall of the rotating shaft member. The first sealing member is in sealing contact with the inner wall surface of the mounting shell. The second sealing member is in sealing contact with the inner wall surface of the mounting shell. When the rotating shaft member drives the first sealing member and the second sealing member to rotate, the rotating shaft member, the first sealing member and the second sealing member can divide the liquid storage cavity into two mutually sealed and isolated damping cavities;
[0011] A retaining rib. There are two retaining ribs. The two retaining ribs are circumferentially spaced and arranged on the inner wall surface of the mounting shell. The two retaining ribs are respectively located in one of the damping cavities;
[0012] The baffle is used to divide the damping chamber into a first sub-chamber and a second sub-chamber. An overflow gap is formed by a spaced arrangement between the baffle and the outer wall surface of the rotating shaft member. The first sub-chamber and the second sub-chamber communicate with each other through the overflow gap.
[0013] When the rotating shaft member rotates in a circumferential direction, the volume of the first sub-chamber increases, and the volume of the second sub-chamber decreases. The damping oil in the second sub-chamber flows through the overflow gap to the first sub-chamber, so that the damping oil in the second sub-chamber is compressed to generate a damping force.
[0014] In some embodiments of the present application, when the closing angle of the door body becomes smaller, the width of the overflow gap gradually increases.
[0015] In some embodiments of the present application, a first groove and a second groove are recessed on the outer peripheral wall of the rotating shaft member. The first groove and the second groove are arranged at intervals in the circumferential direction of the rotating shaft member. The cross-sectional area of the first groove is larger than that of the second groove. The first groove is arranged close to the baffle located in the same damping chamber.
[0016] In some embodiments of the present application, the liquid storage chamber enclosed by the installation shell is cylindrical, and the first sealing member and the second sealing member are symmetrically arranged on the rotating shaft member.
[0017] In some embodiments of the present application, the first sealing member and the second sealing member divide the inner wall surface of the rotating shaft member located in the liquid storage chamber into two axially symmetric surfaces arranged symmetrically.
[0018] When the door body rotates, the rotating shaft member rotates to drive the axially symmetric surface to rotate relative to the baffle, and an overflow gap is formed by a spaced arrangement between the axially symmetric surface and the baffle.
[0019] When the closing angle of the door body gradually becomes smaller, the area from the axially symmetric surface of the rotating shaft member opposite to the baffle to the axis of the rotating shaft member becomes smaller.
[0020] In some embodiments of the present application, the two baffles are symmetrically arranged on the inner wall surface of the installation shell.
[0021] In some embodiments of the present application, it further includes raised ribs. There are two raised ribs, which are circumferentially arranged at intervals on the outer wall surface of the rotating shaft member. The first sealing member is arranged on one of the raised ribs, and the second sealing member is arranged on the other raised rib.
[0022] In some embodiments of the present application, the first sealing member is sleeved on one end of one of the raised ribs away from the rotating shaft member, and the first sealing member covers one end of one of the raised ribs away from the rotating shaft member.
[0023] In some embodiments of the present application, the second sealing member is sleeved on one end of the other raised rib away from the rotating shaft member, and the second sealing member covers one end of the other raised rib away from the rotating shaft member.
[0024] In some embodiments of the present application, the end face of the first sealing member away from the rotating shaft member forms a first arc surface, and the first arc surface is in sealing contact with the inner wall surface of the mounting shell; the end face of the second sealing member away from the rotating shaft member forms a second arc surface, and the second arc surface is in sealing contact with the inner wall surface of the mounting shell.
[0025] In some embodiments of the present application, it further includes a convex ring portion, the convex ring portion is provided on the rotating shaft member, and the outer wall surface of the convex ring portion is in radial contact with the inner wall surface of the mounting shell, so that a liquid storage cavity is formed by enclosing one side of the convex ring portion and the mounting shell.
[0026] In some embodiments of the present application, it further includes an end cover, one end of the mounting shell is provided with an opening, the end cover is arranged at the opening, and the rotating shaft member and the convex ring portion extend into the mounting shell through the opening to form the liquid storage cavity;
[0027] The end cover is sleeved on the outer peripheral wall of the rotating shaft member, and the end cover abuts against one side of the convex ring portion away from the liquid storage cavity.
[0028] In some embodiments of the present application, the end cover includes an axially extending portion and a radially extending portion connected to each other. The axially extending portion extends into the mounting shell through the opening and abuts against the convex ring portion. The axially extending portion is located between the rotating shaft member and the inner wall surface of the mounting shell; the radially extending portion is located at one end of the axially extending portion away from the convex ring portion, and the radially extending portion covers the opening;
[0029] It further includes a sealing ring, the sealing ring is sleeved on the outer wall surface of the rotating shaft member, and the sealing ring is clamped between the axially extending portion and the rotating shaft member.
[0030] In some embodiments of the present application, the rotating shaft member is provided with a third groove, the third groove is located at one end of the rotating shaft member away from the convex ring portion, on one side of the convex ring portion away from the liquid storage cavity, and the sealing ring is in radial contact between the side wall of the third groove and the inner surface of the radially extending portion.
[0031] Advantageous effects:
[0032] The present application discloses a refrigeration device, including a box body, a box liner, a door body and a door hinge. The door body is installed on the box body through the door hinge, realizing the opening and closing function of the refrigeration compartment. The door hinge includes a mounting shell and a rotating shaft. A liquid storage cavity is arranged inside the mounting shell and filled with damping oil. Among them, a first sealing member and a second sealing member are respectively arranged on both sides of the rotating shaft member, thereby separating the liquid storage cavity into two cavities. The retaining ribs are arranged on the inner surface of the mounting shell and are respectively located in the two cavities, further subdividing the cavities into a first sub-cavity and a second sub-cavity, and connecting the two sub-cavities through an overflow gap formed with the surface of the rotating shaft member. During the rotation of the door body and the driving of the rotating shaft member to rotate, the first sub-cavity compresses the damping oil towards the second sub-cavity. During this process, the damping force generated by the damping oil passing through the overflow gap can buffer the closing movement of the door, thereby slowing down the closing or opening speed of the door body, and further helping to reduce noise and impact force, improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.
[0034] Figure 1 Schematic perspective view of a refrigeration device according to an embodiment of the present application;
[0035] Figure 2 is Figure 1 a sectional view of;
[0036] Figure 3 is Figure 1 schematic view of the hidden part of the outer shell of;
[0037] Figure 4 is Figure 3 partial enlarged view of part A in;
[0038] Figure 5 is Figure 4 schematic perspective view of the door hinge in;
[0039] Figure 6 is Figure 5 schematic view of the mounting shell in;
[0040] Figure 7 is Figure 5 exploded view of;
[0041] Figure 8 is Figure 5 sectional view in a certain state of;
[0042] Figure 9 is Figure 8 partial enlarged view of part B in;
[0043] Figure 10 isFigure 5 Cross-sectional view in another state in
[0044] Figure 11 is Figure 10 Partial enlarged view of part C of
[0045] Figure 12 is Figure 5 Schematic diagram of the rotating shaft member in
[0046] Figure 13 is Figure 5 Schematic diagram of the rotating shaft member of another embodiment in
[0047] Figure 14 is Figure 5 Schematic diagram of the first seal and the second seal in
[0048] Figure 15 is Figure 5 A cross-sectional view in
[0049] Figure 16 is Figure 5 Schematic diagram of the end cover in
[0050] Among them, the correspondence between the reference numerals and the component names is as follows:
[0051] 1 box body;
[0052] 2 box liners, 201 refrigerating compartment;
[0053] 3 door body, 301 connection hole;
[0054] 4 door hinge, 401 cut surface, 402 liquid storage cavity, 403 damping cavity, 4031 first sub-cavity, 4032 second sub-cavity, 404 flow-through gap, 4051 first groove, 4052 second groove, 406 shaft surface, 4071 first arc surface, 4072 second arc surface, 408 opening, 409 third groove, 410 slot, 41 mounting shell, 42 rotating shaft member, 43 mounting plate, 431 first plate member, 432 second plate member, 44 first seal, 441 first side portion, 442 second side portion, 443 sealing connection portion, 45 second seal, 46 retaining rib, 47 protruding rib, 48 convex ring portion, 49 end cover, 491 axially extending portion, 492 radially extending portion, 493 sealing ring. Detailed implementation manners
[0055] The present utility model provides a refrigeration device. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the following further describes the present utility model in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the protection scope of the present utility model.
[0056] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0057] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0058] The refrigeration device in the embodiments of the present invention can be a refrigeration cabinet body such as a freezer or a refrigerator. Taking a refrigerator as an example below, the technical solutions for improving the refrigeration device in the embodiments of the invention will be described in detail.
[0059] Figure 1 It is a schematic diagram of a refrigeration device according to an embodiment of the present application.
[0060] Please refer to Figure 1 As shown, the refrigerator provided by the embodiments of the present utility model may include a box body 1. The box body 1 may adopt a hollow structure such as a cuboid. The box body 1 forms the outer shell of the refrigerator. It should be noted that the box body 1 may also adopt a hollow shell structure of other shapes.
[0061] Figure 2 For Figure 1 a sectional view.
[0062] Please refer to Figure 2 As shown, in some embodiments, a refrigeration compartment may be provided inside the box body 1. The refrigeration compartment may be provided as multiple refrigeration compartments.
[0063] In some embodiments, the multiple refrigeration compartments may serve as independent storage spaces, such as a freezer, a refrigerator compartment, and a variable temperature compartment, etc., to meet different refrigeration requirements such as freezing, refrigerating, and variable temperature according to different types of food, and to store items that need to be refrigerated or frozen. The multiple refrigeration compartments can be arranged in a vertical or horizontal partition.
[0064] Please refer to Figure 1 and Figure 2As shown, in some embodiments, the refrigerator may include a door body 3. The door body 3 may be hinged to the front side of the cabinet 1 for opening and closing the refrigerating compartment.
[0065] It should be noted that multiple door bodies 3 may be provided. The door bodies 3 may be provided in one-to-one correspondence with the refrigerating compartments. Multiple door bodies 3 may open and close one refrigerating compartment simultaneously. One door body 3 may also open and close multiple refrigerating compartments simultaneously.
[0066] In some embodiments, the refrigerator may include a refrigeration system. The refrigeration system may be disposed inside the cabinet 1. The refrigeration system may be used to provide cold air inside the refrigerator to maintain a low-temperature environment in each storage compartment.
[0067] In some embodiments, the refrigeration system may include a compressor (not shown in the figure). The compressor, as the power source of the refrigeration cycle, may suck in the refrigerant gas at low temperature and low pressure and compress it into a high-temperature and high-pressure gas. The compressor may deliver the high-temperature and high-pressure refrigerant to the condenser.
[0068] In some embodiments, the refrigeration system may include a condenser (not shown in the figure). The compressor may deliver the compressed refrigerant into the condenser. The condenser may condense the high-temperature and high-pressure refrigerant vapor.
[0069] In some embodiments, the refrigeration system may include a throttling device (not shown in the figure). The condenser may deliver the condensed refrigerant into the throttling device. The throttling device may employ a capillary tube. The throttling device may be used to throttle down the pressure of the refrigerant.
[0070] In some embodiments, the refrigeration system may include an evaporator (not shown in the figure). The throttling device may deliver the refrigerant with reduced pressure after throttling into the evaporator. The evaporator may be used for the refrigerant vapor to evaporate and boil to absorb the heat of the surrounding medium.
[0071] In some embodiments, the compressor, condenser, throttling device, and evaporator may be connected in sequence to form a refrigeration circuit. The refrigerant may circulate within the refrigeration circuit to achieve refrigeration inside the cabinet 1.
[0072] In some embodiments, a compressor compartment (not shown in the figure) may be provided inside the cabinet 1. The compressor compartment may be disposed in the bottom area inside the cabinet 1. The compressor compartment may be located at the rear lower side of the storage compartment. The compressor, condenser, throttling device, etc. may be disposed inside the compressor compartment.
[0073] In some embodiments, an evaporator compartment (not shown in the figure) may be provided inside the cabinet 1. The evaporator may be provided inside the evaporator compartment. The evaporator may be used to absorb the heat inside the evaporator compartment to form a large amount of cold air inside the evaporator compartment. When the cold air is delivered into the storage compartment, the low-temperature storage function inside the storage compartment can be realized.
[0074] In some embodiments, an air duct assembly may be provided inside the cabinet 1. A supply air duct (not shown in the figure) may be formed inside the air duct assembly. The supply air duct may communicate with the evaporator and the refrigerating compartment, and convey cold air into the refrigerating compartment, thereby realizing the low-temperature storage function in the refrigerating compartment.
[0075] Figure 3 For Figure 1 Schematic diagram of the hidden part of the housing; Figure 4 For Figure 3 Partial enlarged view of part A in Figure 5 For Figure 4 Stereo schematic diagram of the door hinge in Figure 6 For Figure 5 Schematic diagram of the mounting shell in
[0076] Please refer to Figure 3 and Figure 4 As shown, in some embodiments, the refrigerator may include a door hinge 4. The door hinge 4 is provided inside the cabinet, and the door hinge 4 may be used to connect the door body and the cabinet, and control the smooth opening and closing of the door body.
[0077] Please refer to Figure 5 and Figure 6 As shown, in some embodiments, the door hinge 4 may include a mounting shell 41. The mounting shell 41 may be disposed on the cabinet.
[0078] Such as Figure 6 As shown, in some embodiments, a liquid storage cavity 402 may be provided inside the mounting shell 41. Damping oil may be provided inside the liquid storage cavity 402. By providing the liquid storage cavity 402 inside the mounting shell 41, the liquid storage cavity 402 may be used to store damping oil.
[0079] Such as Figure 6 As shown, in some embodiments, the liquid storage cavity 402 enclosed by the inner periphery of the mounting shell 41 may be cylindrical.
[0080] Figure 7 For Figure 5 Exploded view in
[0081] Such as Figure 5 and Figure 7 As shown, in some embodiments, the door hinge 4 may include a rotating shaft member 42. One end of the rotating shaft member 42 is rotatably disposed on the mounting shell 41 and located inside the liquid storage cavity 402, and the other end of the rotating shaft member 42 is connected to the door body. Thus, driven by the door body, the other end of the rotating shaft member 42 may rotate with the door body, and cause one end of the rotating shaft member 42 to rotate inside the liquid storage cavity 402.
[0082] Such as Figure 4As shown, in some embodiments, a connection hole 301 may be formed at the top of the door body 3. The other end of the rotating shaft member 42 can be inserted into the connection hole 301.
[0083] As Figure 5 shown, in some embodiments, a cut surface 401 may be formed on the circumferential side wall of the other end of the rotating shaft member 42. The cut surface 401 is used to abut against the hole wall of the connection hole when installed in the connection hole, so that the door body can drive the second shaft section to rotate. By providing the cut surface 401 on the rotating shaft member 42, the tight abutment between the cut surface 401 and the hole wall of the connection hole forms a stable connection between the rotating shaft member 42 and the door body, reducing the risk of loosening or displacement caused by vibration or impact. On the other hand, since the rotating shaft member 42 is directly inserted into the connection hole and connected to the door body, the rotation of the door body can be directly and accurately transmitted to the rotating shaft member 42, thereby driving the rotating shaft member 42 to rotate relative to the installation cavity.
[0084] As Figure 5 and Figure 7 shown, in some embodiments, the door hinge 4 may include a mounting plate 43. The mounting shell 41 can be mounted on the mounting plate 43, and the mounting shell 41 can be connected to the door body or the box body through the mounting plate 43.
[0085] As Figure 7 shown, in some embodiments, the mounting plate 43 may include a first plate member 431 and a second plate member 432 arranged at an angle. The first plate member 431 can be connected to the box body through fasteners. The mounting shell 41 can be arranged on the second plate member 432, and the rotating shaft member 42 can protrude from the second plate member 432 toward the door body to penetrate through the door body.
[0086] As Figure 7 shown, in some embodiments, the door hinge 4 may include a first seal 44. The first seal 44 can be arranged on the outer peripheral wall of the rotating shaft member 42. The first seal 44 can be in sealing abutment with the inner wall surface of the mounting shell 41 to seal the gap between the first seal 44 and the inner wall surface of the mounting shell 41.
[0087] In some embodiments, the door hinge 4 may include a second seal 45. The first seal 44 and the second seal 45 are circumferentially spaced and arranged on the outer peripheral wall of the rotating shaft member 42. The second seal 45 can be in sealing abutment with the inner wall surface of the mounting shell 41 to seal the gap between the second seal 45 and the inner wall surface of the mounting shell 41.
[0088] Figure 8 For Figure 5 a sectional view in one state of Figure 9 For Figure 8 a partial enlarged view at B of Figure 10 For Figure 5 a sectional view in another state ofFigure 11 For Figure 10 the partial enlarged view at position C of
[0089] When the rotating shaft member 42 drives the first seal member 44 and the second seal member 45 to rotate, the rotating shaft member 42, the first seal member 44, and the second seal member 45 can divide the liquid storage cavity 402 to form two damping cavities 403 that are hermetically isolated from each other. In this way, the arrangement of the first seal member 44 and the second seal member 45 can form two independently sealed damping cavities 403. Moreover, by forming two independent damping cavities 403, the damping oil in each damping cavity 403 can independently respond to the rotation of the rotating shaft member 42, thereby providing a more stable and predictable damping effect.
[0090] It should be noted that when the rotating shaft member 42 starts to rotate, the rotating shaft member 42 drives the first seal member 44 and the second seal member 45 to rotate together, so that the position of the damping cavity 403 changes during each rotation.
[0091] Please refer to the attached Figure 8 As shown, in some embodiments, the door hinge 4 further includes a retaining rib 46. The retaining rib 46 can be arranged on the inner wall surface of the mounting shell 41. The retaining rib 46 can divide the damping cavity 403 into a first sub-cavity 4031 and a second sub-cavity 4032. A flow-through gap 404 can be formed by spacing between the retaining rib 46 and the outer wall surface of the rotating shaft member 42, and the first sub-cavity 4031 and the second sub-cavity 4032 communicate through the flow-through gap 404. Among them, a certain interval is maintained between the retaining rib 46 and the outer wall surface of the rotating shaft member 42, thereby forming the flow-through gap 404. The flow-through gap 404 allows the damping oil to flow between the first sub-cavity 4031 and the second sub-cavity 4032. When the rotating shaft member 42 rotates, due to the change in the volume of the first sub-cavity 4031 and the second sub-cavity 4032, the damping oil will flow from one sub-cavity to the other through this flow-through gap 404.
[0092] In some embodiments, there can be two retaining ribs 46. The two retaining ribs 46 can be circumferentially spaced and arranged on the inner wall surface of the mounting shell 41, and the two retaining ribs 46 are respectively located in a damping cavity 403. By setting the retaining rib 46 to two and arranging the retaining rib 46 in each damping cavity 403, damping forces can be generated on both sides of the rotating shaft.
[0093] Please refer to the attached Figure 8 and the attached Figure 10 , when the rotating shaft member 42 rotates in a circumferential direction, the volume of the first sub-cavity 4031 increases, the volume of the second sub-cavity 4032 decreases, and the damping oil in the second sub-cavity 4032 flows through the flow-through gap 404 to the first sub-cavity 4031, so that the damping oil in the second sub-cavity 4032 is compressed to generate a damping force.
[0094] It should be noted that when the door body is closed or opened, the rotating shaft member 42 will rotate in a circumferential direction, where the circumferential direction can be clockwise or counterclockwise. For example, in the initial state of the rotating shaft member as Figure 8 shown, the rotating shaft member rotates counterclockwise around its axis and can rotate to the state as Figure 10 shown. In this process, as the rotating shaft member 42 rotates, the volumes of the first sub-chamber 4031 and the second sub-chamber 4032 will change. Specifically, when the rotating shaft member 42 rotates in a circumferential direction, the volume of the first sub-chamber 4031 will increase, while the volume of the second sub-chamber 4032 will decrease accordingly. Due to the change in volume, the damping oil in the second sub-chamber 4032 will be compressed and flow through the flow-through gap 404 to the first sub-chamber 4031 with an increasing volume. In this process, the damping oil is compressed and generates resistance, that is, damping force. This damping force will slow down the rotation speed of the rotating shaft member 42, thereby slowing down the closing or opening speed of the door body, and further helping to reduce noise and impact force, improving the user experience.
[0095] Please refer to Appendix Figure 8 and Appendix Figure 10 , Appendix Figure 8 can be understood as being in a state where the closing angle of the door body is large, and Appendix Figure 10 can be understood as being in a state where the closing angle of the door body is small.
[0096] As Figure 9 and Figure 11 shown, in some embodiments, as the closing angle of the door body becomes smaller, the width of the flow-through gap 404 gradually increases. In this way, as the closing angle of the door body gradually decreases, that is, as the door body gradually approaches the closed position, the width of the flow-through gap 404 formed by the rotation of the rotating shaft member 42 relative to the inner surface of the mounting shell 41 gradually increases, that is, the channel for the damping oil to flow through the flow-through gap 404 becomes less, and further reduces the flow resistance of the damping oil when passing through this gap. Correspondingly, the damping force will also decrease accordingly, so that the door body can gradually decelerate when approaching the closed position, and further achieve a smooth buffering effect during the closing process of the door body, which is beneficial to the smooth transition of the door body during the closing process, and improves the overall performance of the refrigeration device and the user experience.
[0097] In the prior art, in a refrigerator, by introducing a self-closing door structure with a torsion spring, the energy consumption can be reduced and the temperature inside the refrigerator can be kept stable through the automatic closing function. However, when this self-closing door mechanism closes at a large opening angle, there will be problems such as too fast closing speed and loud noise. Moreover, since the door body changes with the opening angle during the rotation process, the torsion force generated by the torsion spring on the door body is also different. For example, when the opening angle is larger, the torsion force generated by the torsion spring on the door body is larger, and when the opening angle is smaller, the torsion force generated by the torsion spring on the door body is smaller, which further affects the smoothness of opening and thus affects the overall user experience.
[0098] In the refrigeration device of the present application, by setting that as the closing angle of the door body becomes smaller, the width of the over-current gap 404 gradually increases, it is possible to greatly reduce the problem that occurs when the door body is approaching closure, where the closing action is not smooth enough due to sudden speed reduction caused by changes in the torsion of the torsion spring or other factors.
[0099] Figure 12 For Figure 5 the schematic diagram of the rotating shaft member in Figure 13 For Figure 5 the schematic diagram of the rotating shaft member of another embodiment in
[0100] As Figure 8 and Figure 13 shown, in some embodiments, the outer peripheral wall of the rotating shaft member 42 can be designed into a gradually changing structure. The outer peripheral wall of the rotating shaft member 42 can be set such that as the closing angle of the door body becomes smaller, the area between the outer peripheral wall of the rotating shaft member 42 and the axis of the rotating shaft member 42 decreases, thereby causing the area of the over-current gap 404 formed between the outer peripheral wall of the rotating shaft member 42 and the retaining rib 46 to change.
[0101] In some other embodiments, the outer peripheral wall of the rotating shaft member 42 can be recessed to form a groove (not shown in the figure). The groove is provided close to the retaining rib 46 located in the same damping chamber 403. In this way, during the process of the closing angle of the door body decreasing from large to small, the part of the outer peripheral wall of the rotating shaft member 42 without the groove first passes by the retaining rib 46 and is disposed opposite to the retaining rib 46, and then as the closing angle of the door body becomes smaller, the part of the outer peripheral wall of the rotating shaft member 42 with the groove passes by the retaining rib 46 and is disposed opposite to the retaining rib 46. At this time, since the outer peripheral wall of the rotating shaft member 42 forms a groove, the over-current gap 404 formed between the outer peripheral wall of the rotating shaft member 42 and the retaining rib 46 is large. Thus, as the closing angle of the door body becomes smaller, the damping force gradually becomes smaller, which can correspondingly match the speed of the door body at different closing angles, enabling the door body to gradually decelerate when approaching the closed position, and thereby achieving a smooth buffering effect during the closing process of the door body.
[0102] In some embodiments, the outer peripheral wall of the rotating shaft member 42 can be provided with a groove extending circumferentially along the outer peripheral wall of the rotating shaft member 42. The cross-sectional area of the groove can be designed to be gradually changing, so that as the closing angle of the door body becomes smaller, the width of the flow gap formed between the outer peripheral wall of the rotating shaft member 42 and the retaining rib 46 gradually increases.
[0103] In some embodiments, the groove extending circumferentially along the outer peripheral wall of the rotating shaft member 42 can be set to have a constant width, and as the closing angle of the door body becomes smaller, the depth of the groove becomes larger. It should be noted that the width of the groove can be understood as the axial length of the groove along the rotating shaft member 42, and the depth of the groove can be understood as the radial length of the groove along the rotating shaft member 42.
[0104] In some embodiments, the groove circumferentially extending along the outer peripheral wall of the rotating shaft member 42 may be set to have a constant depth, and as the closing angle of the door body becomes smaller, the height of the groove becomes larger.
[0105] As Figure 12 shown, in some embodiments, the outer peripheral wall of the rotating shaft member 42 may be recessed to form a first groove 4051 and a second groove 4052. The first groove 4051 and the second groove 4052 are arranged at intervals along the circumference of the rotating shaft member 42. The cross-sectional area of the first groove 4051 is larger than that of the second groove 4052, and the first groove 4051 is arranged close to the retaining rib 46 located in the same damping cavity 403.
[0106] As Figure 12 shown, wherein the cross-sectional area of the first groove 4051 is larger than that of the second groove 4052, which means that when the damping oil passes through the second groove 4052, it will be subjected to greater resistance, thereby generating a stronger damping effect. Moreover, the first groove 4051 is arranged close to the retaining rib 46 located in the same damping cavity 403, that is, when the door is just opened, the first groove 4051 first passes through the position opposite to the retaining rib 46, and then the second groove 4052 passes through the position opposite to the retaining rib 46. Then, during the closing process of the door, as the closing angle decreases from large to small, the second groove 4052 first passes through the position opposite to the retaining rib 46. At this time, the closing angle is large and the flow-through gap 404 is small, and the damping force generated by the damping oil flowing in the damping cavity 403 is large, which can more efficiently reduce the closing speed of the door. Then, as the rotating shaft member 42 rotates, the first groove 4051 passes through the position opposite to the retaining rib 46. At this time, the closing angle is small, the closing speed decreases, and the damping force generated by the damping oil flowing in the damping cavity 403 is relatively small, so that the door body can be more smoothly and quietly closed at the opening 408 of the refrigerating compartment.
[0107] As Figure 12 and Figure 13 shown, in some embodiments, the first seal 44 and the second seal 45 may be symmetrically arranged on the rotating shaft member 42. This can enable the first seal 44 and the second seal 45 to separate and form two damping cavities 403 with equal volumes. Moreover, due to the symmetrical distribution of the first seal 44 and the second seal, it is beneficial for the rotating shaft member 42 to be evenly stressed during rotation. Furthermore, it can also balance the damping forces generated by the two damping cavities 403 on both sides, making the opening and closing of the door body more stable.
[0108] As Figure 9As shown, in some embodiments, the first seal 44 and the second seal 45 can divide the inner wall surface of the liquid storage cavity 402 where the rotating shaft member 42 is located into two symmetrically arranged shaft surfaces 406. When the door body rotates, the rotating shaft member 42 rotates to drive the shaft surface 406 to rotate relative to the retaining rib 46, and an overflow gap 404 is formed at an interval between the shaft surface 406 and the retaining rib 46.
[0109] It should be noted that an overflow gap 404 is formed between the symmetrically arranged shaft surface 406 and the retaining rib 46, and the overflow gap 404 is used for the flow of damping oil. Since the first seal 44 and the second seal 45 are symmetrically arranged, the two shaft surfaces 406 separated by them are also symmetric, which can make the resistance received by the damping oil more uniform during the flow process, and is beneficial to maintaining the balance and stability of the rotating shaft member 42 during the rotation process.
[0110] When the closing angle of the door body gradually becomes smaller, the area from the shaft surface 406 of the rotating shaft member 42 opposite to the retaining rib 46 to the axis of the rotating shaft member 42 becomes smaller. In this way, by setting the surface of the rotating shaft member 42 as a gradient component, during the closing process of the door body, the rotating shaft member 42 rotates accordingly, and the radial distance between the shaft surface 406 opposite to the retaining rib 46 and the axis of the rotating shaft member 42 will change. As the closing angle of the door body gradually becomes smaller (i.e., the door body gradually closes), the area from the shaft surface 406 of the rotating shaft member 42 to the axis of the rotating shaft member 42 becomes smaller, resulting in a decrease in the damping force.
[0111] In some embodiments, the two retaining ribs 46 can be symmetrically arranged on the inner wall surface of the mounting shell 41. This is beneficial for the rotating shaft member 42 to receive uniform resistance from both sides during the rotation process, so that the rotating shaft member 42 is subjected to uneven damping forces on both sides during rotation, improving the balance during the rotation of the rotating shaft.
[0112] As Figure 8 and Figure 10 shown, in some embodiments, the rotating shaft member 42 can include a raised rib 47. The raised rib 47 can be arranged on the outer wall surface of the rotating shaft member 42. In this way, when the rotating shaft member 42 is subjected to an external force, the raised rib 47 can serve as a support point to disperse and reduce the stress concentration phenomenon of the rotating shaft member 42 itself, thereby enhancing the structural strength of the rotating shaft member 42.
[0113] In some embodiments, there can be two raised ribs 47. The two raised ribs 47 can be circumferentially spaced on the outer wall surface of the rotating shaft member 42. The first seal 44 is arranged on one of the raised ribs 47, and the second seal 45 is arranged on the other raised rib 47. The arrangement of the raised rib 47 can provide a stable positioning basis for the first seal 44 and the second seal 45, and the seals can be more firmly fixed on the rotating shaft member 42, reducing displacement or loosening caused by rotation, thereby improving the sealing performance.
[0114] As Figure 12 and Figure 13 shown, in some embodiments, the first seal 44 can be sleeved on one end of one of the protruding ribs 47 away from the rotating shaft member 42.
[0115] In some embodiments, the first seal 44 can be coated on one end of one of the protruding ribs 47 away from the rotating shaft member 42. This can make the first seal 44 in close contact with the protruding rib 47, effectively reducing the flow of damping oil between the two damping chambers 403 and greatly reducing the possibility of leakage. At the same time, the first seal 44 is coated on the protruding rib 47. When the rotating shaft member 42 rotates, the protruding rib 47 and the first seal 44 move as a whole, reducing the risk of failure caused by the loosening or falling off of individual components.
[0116] In some embodiments, the second seal 45 can be sleeved on one end of the other protruding rib 47 away from the rotating shaft member 42. So that the two protruding ribs 47 can be sleeved with the first seal 44 and the second seal 45 respectively.
[0117] In some embodiments, the second seal 45 can be coated on one end of the other protruding rib 47 away from the rotating shaft member 42. Similarly, it can make the second seal 45 in close contact with the protruding rib 47, effectively reducing the flow of damping oil between the two damping chambers 403 and greatly reducing the possibility of leakage. At the same time, the second seal 45 is coated on the protruding rib 47. When the rotating shaft member 42 rotates, the other protruding rib 47 and the second seal 45 move as a whole, reducing the risk of failure caused by the loosening or falling off of individual components.
[0118] Figure 14 For Figure 5 the schematic diagrams of the first seal and the second seal in
[0119] As Figure 14 shown, in some embodiments, the end face of the first seal 44 away from the rotating shaft member can form a first arc surface 4071. The first arc surface 4071 is in sealing contact with the inner wall surface of the mounting shell 41. By designing the end face of the first seal 44 into the first arc surface 4071, the first seal 44 can better fit the inner wall surface of the mounting shell 41. Since the arc surface can naturally match the circular or curved inner wall in the mounting shell 41, it is beneficial to reduce the gap between the first seal 44 and the inner wall surface of the mounting seat, thereby improving the sealing performance.
[0120] As Figure 14As shown, in some embodiments, the end face of the second seal 45 away from the rotating shaft member may form a second arc surface 4072, and the second arc surface 4072 is in sealing contact with the inner wall surface of the mounting shell 41. Similarly, by designing the end face of the second seal 45 as the second arc surface 4072, the second seal 45 can better fit the inner wall surface of the mounting shell 41, effectively sealing the two damping chambers 403.
[0121] As Figure 12 and Figure 14 shown, in some embodiments, the first seal 44 may have a first side portion 441 and a second side portion 442 arranged oppositely, and a sealing connection portion 443 connected between the first side portion 441 and the second side portion 442. A slot 410 may be formed by enclosing between the first side portion 441, the second side portion 442, and the sealing connection portion 443. The raised rib 47 may be inserted into the slot 410. Among them, when the raised rib 47 is inserted into the slot 410, a tight fit can be formed between the first seal 44 and the raised rib 47, reducing the gap between the first seal 44 and the raised rib 47, thereby improving the sealing performance.
[0122] In some embodiments, the second seal 45 may be designed with the same structure as the first seal 44.
[0123] Figure 15 For Figure 5 a cross-sectional view in
[0124] Please refer to the attached Figure 15 shown, in some embodiments, the rotating shaft member 42 may include a convex ring portion 48. The convex ring portion 48 may be provided on the rotating shaft member 42.
[0125] In some embodiments, the outer wall surface of the convex ring portion 48 may be in radial contact with the inner wall surface of the mounting shell 41, so that a liquid storage cavity 402 is formed by enclosing one side of the convex ring portion 48 and the mounting shell 41. By providing the convex ring portion 48 on the rotating shaft member 42 and the radial contact between the convex ring portion 48 and the inner wall surface of the mounting shell 41, the risk of liquid leakage from the liquid storage cavity 402 is avoided, improving the sealing performance of the liquid storage cavity 402.
[0126] As Figure 12 and Figure 13 shown, in some embodiments, the convex ring portion 48 may be integrally formed with the rotating shaft member 42.
[0127] Figure 16 For Figure 5 a schematic diagram of the end cover in
[0128] Please refer to the attached Figure 16 shown, in some embodiments, the door hinge 4 may include an end cover 49.
[0129] AsFigure 6 and Figure 15 As shown in Figure 15 , in some embodiments, one end of the mounting shell 41 is provided with an opening 408, and the end cap 49 can be disposed at the opening 408. The rotating shaft member 42 and the convex ring portion 48 extend into the mounting shell 41 through the opening 408 to form a liquid storage cavity 402.
[0130] Among them, one end of the mounting shell 41 is provided with an opening 408, so that the rotating shaft member 42 and the convex ring portion 48 can extend into the mounting shell 41 through the opening 408, and the convex ring portion 48 abuts against the inner surface of the mounting shell 41 to form a liquid storage cavity 402. The opening 408 at one end of the mounting shell 41 is completely closed by the setting of the end cap 49. The cooperation between the end cap 49 and the opening 408 of the mounting shell 41, and the abutment between the end cap 49 and the side of the convex ring portion 48 away from the liquid storage cavity 402. The end cap 49 and the convex ring portion 48 together constitute multiple sealing barriers, further enhancing the sealing performance of the liquid storage cavity 402 and reducing the risk of liquid leakage.
[0131] As Figure 15 shown in Figure 15 , in some embodiments, the end cap 49 can be sleeved on the outer peripheral wall of the rotating shaft member 42, and the end cap 49 abuts against the side of the convex ring portion 48 away from the liquid storage cavity 402. By sleeving the end cap 49 on the outer peripheral wall of the rotating shaft member 42, it not only plays a role in closing the opening 408, but also provides additional support for the rotating shaft member 42, which is beneficial to enhancing the stability of the rotating shaft member 42 in the mounting shell 41 and preventing the rotating shaft member 42 from generating excessive vibration or deviation during rotation.
[0132] As Figure 12 and Figure 15 shown in Figure 15 , in some embodiments, the end cap 49 can include an axially extending portion 491. The axially extending portion 491 can extend into the mounting shell 41 through the opening 408 and abut against the convex ring portion 48. The axially extending portion 491 can be located between the rotating shaft member 42 and the inner wall surface of the mounting shell 41.
[0133] Specifically, the axially extending portion 491 can be provided with a through hole for the rotating shaft member 42 to pass through. When the rotating shaft member 42 rotates, the axially extending portion 491 can act as a guiding and positioning component for the rotation of the rotating shaft member 42, ensuring that the rotating shaft member 42 maintains a stable axial position during rotation. Moreover, by disposing the axially extending portion 491 between the rotating shaft member 42 and the inner wall surface of the mounting shell 41, the space inside the mounting shell 41 can be utilized more effectively, making the overall structure more compact.
[0134] As Figure 15 and Figure 16As shown, in some embodiments, the end cap 49 may include a radially extending portion 492. The radially extending portion 492 may cover the opening 408. By providing the radially extending portion 492 at the opening 408, the radially extending portion 492 can be used to close the opening 408 of the mounting shell 41, further enhancing the sealing performance of the liquid storage cavity 402 and preventing the damping oil in the liquid storage cavity 402 from leaking through the opening 408.
[0135] As Figure 15 and Figure 16 shown, in some embodiments, the end cap 49 may include an axially extending portion 491 and a radially extending portion 492 connected to each other. The radially extending portion 492 may be located at one end of the axially extending portion 491 away from the convex ring portion 48, and the radially extending portion 492 covers the opening 408.
[0136] As Figure 7 shown, in some embodiments, the door hinge 4 may include a sealing ring 493. The sealing ring 493 may be sleeved on the outer wall surface of the rotating shaft member 42, and the sealing ring 493 is clamped between the axially extending portion 491 and the rotating shaft member 42. Since the rotating shaft member 42 needs to rotate in the door hinge 4, by providing the sealing ring 493 sleeved on the outer wall surface of the rotating shaft member 42, the sealing ring 493 can be closely attached to the outer wall surface of the rotating shaft member 42 and rotate therewith, thereby achieving dynamic sealing and being able to better prevent liquid or gas from leaking through the gap between the rotating shaft member 42 and the mounting shell 41.
[0137] Furthermore, the setting of the axially extending portion 491 of the end cap 49 and the convex ring portion 48 forms a seal between the rotating shaft member 42 and the mounting shell 41, and by additionally providing the sealing ring 493, an additional sealing barrier can be added to the seal of the liquid storage cavity 402.
[0138] As Figure 13 and Figure 15 shown, in some embodiments, the rotating shaft member 42 may be provided with a third groove 409. The third groove 409 is located at one end of the rotating shaft member 42 away from the convex ring portion 48 and on the side of the convex ring portion 48 away from the liquid storage cavity 402. The sealing ring 493 is radially abutted between the side wall of the third groove 409 and the inner surface of the radially extending portion 492. By providing the third groove 409 on the rotating shaft member 42, the third groove 409 can provide an accurate positioning space for the sealing ring 493. When the sealing ring 493 is installed on the rotating shaft member 42, the sealing ring 493 can be tightly embedded in the third groove 409, which is beneficial to prevent it from shifting or falling off during rotation.
[0139] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the scope of the present application is only limited by the appended claims.
Claims
1. A refrigeration device, characterized in that, Comprising: A box body, which forms the outer shell of the refrigeration device; A liner, which is arranged inside the box body and constructs a refrigeration compartment with an opening at the front side; A door body, which is arranged on the box body and is used to open and close the refrigeration compartment; A door hinge, which is arranged inside the box body. The door hinge includes a mounting shell, a rotating shaft member, a first sealing member and a second sealing member. The mounting shell is arranged on the box body. A liquid storage cavity is provided inside the mounting shell, and damping oil is provided in the liquid storage cavity. One end of the rotating shaft member is rotatably arranged on the mounting shell and is located in the liquid storage cavity, and the other end of the rotating shaft member is connected to the door body; the first sealing member and the second sealing member are circumferentially spaced and arranged on the outer peripheral wall of the rotating shaft member; the first sealing member is in sealing contact with the inner wall surface of the mounting shell, and the second sealing member is in sealing contact with the inner wall surface of the mounting shell; when the rotating shaft member drives the first sealing member and the second sealing member to rotate, the rotating shaft member, the first sealing member and the second sealing member can divide the liquid storage cavity into two mutually sealed and isolated damping cavities; A retaining rib, there are two retaining ribs, and the two retaining ribs are circumferentially spaced and arranged on the inner wall surface of the mounting shell, and the two retaining ribs are respectively located in one of the damping cavities; The retaining rib is used to divide the damping cavity into a first sub-cavity and a second sub-cavity, and a flow-through gap is formed by spacing between the retaining rib and the outer wall surface of the rotating shaft member, and the first sub-cavity and the second sub-cavity communicate through the flow-through gap; When the rotating shaft member rotates in a circumferential direction, the volume of the first sub-cavity increases, the volume of the second sub-cavity decreases, and the damping oil in the second sub-cavity flows to the first sub-cavity through the flow-through gap, so that the damping oil in the second sub-cavity is compressed to generate a damping force.
2. The refrigeration device according to claim 1, characterized in that, When the closing angle of the door body becomes smaller, the width of the flow-through gap gradually increases.
3. The refrigeration device according to claim 1, wherein A first groove and a second groove are recessed on the outer peripheral wall of the rotating shaft member, the first groove and the second groove are circumferentially spaced along the rotating shaft member, the cross-sectional area of the first groove is larger than that of the second groove, and the first groove is arranged close to the retaining rib located in the same damping cavity.
4. The refrigeration device according to claim 1, wherein The liquid storage cavity enclosed by the inner periphery of the mounting shell is cylindrical, and the first sealing member and the second sealing member are symmetrically arranged on the rotating shaft member.
5. The refrigeration device according to claim 4, wherein The first sealing member and the second sealing member divide the inner wall surface of the rotating shaft member located in the liquid storage cavity into two symmetrically arranged shaft surfaces; When the door body rotates, the rotating shaft member rotates to drive the shaft surface to rotate relative to the retaining rib, and the flow-through gap is formed by spacing between the shaft surface and the retaining rib; When the closing angle of the door body gradually becomes smaller, the area from the shaft surface where the rotating shaft member rotates to be opposite to the retaining rib to the axis of the rotating shaft member becomes smaller.
6. The refrigeration device according to claim 4, characterized in that, The two retaining ribs are symmetrically arranged on the inner wall surface of the mounting shell.
7. The refrigeration device according to claim 1, wherein, it further includes raised ribs. There are two raised ribs, and the two raised ribs are circumferentially spaced and arranged on the outer wall surface of the rotating shaft member. The first seal is arranged on one of the raised ribs, and the second seal is arranged on the other raised rib.
8. The refrigeration device according to claim 7, wherein, the first seal is sleeved on one end of one of the raised ribs away from the rotating shaft member, and the first seal covers one end of one of the raised ribs away from the rotating shaft member.
9. The refrigeration device according to claim 7, wherein, the second seal is sleeved on one end of the other raised rib away from the rotating shaft member, and the second seal covers one end of the other raised rib away from the rotating shaft member.
10. The refrigeration device according to claim 1, wherein, the end face of the first seal away from the rotating shaft member forms a first arc surface, and the first arc surface is in sealing contact with the inner wall surface of the mounting shell; the end face of the second seal away from the rotating shaft member forms a second arc surface, and the second arc surface is in sealing contact with the inner wall surface of the mounting shell.
11. The refrigeration device according to claim 1, wherein, it further includes a convex ring portion. The convex ring portion is arranged on the rotating shaft member, and the outer wall surface of the convex ring portion is in radial contact with the inner wall surface of the mounting shell, so that a liquid storage cavity is formed by enclosing one side of the convex ring portion and the mounting shell.
12. The refrigeration device according to claim 11, wherein, it further includes an end cover. One end of the mounting shell is provided with an opening, and the end cover is arranged at the opening. The rotating shaft member and the convex ring portion extend into the mounting shell through the opening to form the liquid storage cavity; the end cover is sleeved on the outer peripheral wall of the rotating shaft member, and the end cover abuts against one side of the convex ring portion away from the liquid storage cavity.
13. The refrigeration device according to claim 12, wherein, the end cover includes an axially extending portion and a radially extending portion connected to each other. The axially extending portion extends into the mounting shell through the opening and abuts against the convex ring portion. The axially extending portion is located between the rotating shaft member and the inner wall surface of the mounting shell; the radially extending portion is located at one end of the axially extending portion away from the convex ring portion, and the radially extending portion covers the opening; it further includes a sealing ring. The sealing ring is sleeved on the outer wall surface of the rotating shaft member, and the sealing ring is clamped between the axially extending portion and the rotating shaft member.
14. The refrigeration device according to claim 13, wherein, the rotating shaft member is provided with a third groove. The third groove is located at one end of the rotating shaft member away from the convex ring portion and on one side of the convex ring portion away from the liquid storage cavity. The sealing ring is radially abutted between the side wall of the third groove and the inner surface of the radially extending portion.