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CN119664198A - Hinge structure and refrigerator - Google Patents

Hinge structure and refrigerator Download PDF

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Publication number
CN119664198A
CN119664198A CN202411852182.5A CN202411852182A CN119664198A CN 119664198 A CN119664198 A CN 119664198A CN 202411852182 A CN202411852182 A CN 202411852182A CN 119664198 A CN119664198 A CN 119664198A
Authority
CN
China
Prior art keywords
shaft body
door
groove
shaft
hinge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202411852182.5A
Other languages
Chinese (zh)
Inventor
冯校楠
汪昌勇
刘朋
张大卫
蒲新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Higasket Plastics Co ltd
Original Assignee
Anhui Higasket Plastics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Higasket Plastics Co ltd filed Critical Anhui Higasket Plastics Co ltd
Priority to CN202411852182.5A priority Critical patent/CN119664198A/en
Publication of CN119664198A publication Critical patent/CN119664198A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00Hinges or pivots of special construction
    • E05D7/08Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
    • E05D7/081Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00Additional features or accessories of hinges
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00Additional features or accessories of hinges
    • E05D11/10Devices for preventing movement between relatively-movable hinge parts
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00Hinges with pins
    • E05D3/06Hinges with pins with two or more pins
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/02Doors; Covers
    • F25D23/028Details

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)

Abstract

本发明涉及冰箱技术领域,公开了一种铰链结构及冰箱,包括第一铰接件和第二铰接件,所述第一铰接件上开设有第一槽体和第二槽体,第二铰接件上固定设置有第一轴体和第二轴体,第一轴体插设于第一槽体,第二轴体插设于第二槽体。第一槽体的第一槽部和第二槽体的第四槽部向箱、门结合面方向延伸,使得第一轴体、第二轴体在相应槽体中移动的过程中,使得门本体能够在第一阶段先进行远离箱体的移动,在不影响门体开合的同时可以缩小关门状态下的门箱间距,甚至可以实现零间距。且对于设置有门封的门体也不会出现影响门封结构的问题。

The present invention relates to the technical field of refrigerators, and discloses a hinge structure and a refrigerator, including a first hinge and a second hinge, wherein the first hinge is provided with a first slot body and a second slot body, and the second hinge is fixedly provided with a first shaft body and a second shaft body, wherein the first shaft body is inserted in the first slot body, and the second shaft body is inserted in the second slot body. The first slot portion of the first slot body and the fourth slot portion of the second slot body extend toward the joint surface of the box and the door, so that during the movement of the first shaft body and the second shaft body in the corresponding slot body, the door body can first move away from the box body in the first stage, and the distance between the door and the box in the closed state can be reduced without affecting the opening and closing of the door body, and even zero distance can be achieved. Moreover, for the door body provided with a door seal, there will be no problem of affecting the door seal structure.

Description

Hinge structure and refrigerator
Technical Field
The invention relates to the technical field of refrigerators, in particular to a hinge structure and a refrigerator.
Background
The existing refrigerator and hinge technology have to increase the distance between the door and the box in order to prevent the side edge of the door body from interfering with the box body when the door box is opened and closed, and then the heat conduction inside and outside the box body of the refrigerator product can be influenced, so that the power consumption is increased. Even so, in the case of door body installation door seal, still there is the possibility that door seal is compressed and deformed by side direction in the opening and closing of conventional hinge, influences sealed effect. (door seal lateral extrusion deformation: the door seal interferes with the box body in the opening and closing process until the door seal is deformed and attached, so that the door seal cannot achieve the actual sealing design effect, and meanwhile, hidden danger of cold leakage exists).
Summary of the invention
The invention solves the technical problems that the space between the box and the door connected by the existing hinge structure is larger, and the door seal is possibly extruded and deformed laterally, thereby influencing the sealing effect.
The aim of the invention can be achieved by the following technical scheme:
A hinge structure, comprising:
The first hinge piece is provided with a first groove body and a second groove body, the first groove body comprises a first groove part and a second groove part which are communicated, the second groove body comprises a fourth groove part and a fifth groove part which are communicated, the first groove part and the fourth groove part extend from a starting end to the direction of the joint surface of the door body and the box body in a door closing state, and the included angle of the tangent line of the central line of the second groove part and the tangent line of the central line of the fifth groove part are gradually increased;
The second hinge piece is fixedly provided with a first shaft body and a second shaft body, the first shaft body is inserted into the first groove body, and the second shaft body is inserted into the second groove body;
the first hinge member and the second hinge member are switched between an initial position in which the first shaft body is located at an end of the first groove portion away from the second groove portion, and an open position in which the second shaft body is located at an end of the fourth groove portion away from the fifth groove portion, and the first shaft body moves in the first groove portion and the second shaft body moves in the second groove portion.
In one embodiment of the present invention, first transition portions are respectively disposed between the first groove portion and the second groove portion, and between the fourth groove portion and the fifth groove portion.
In one scheme of the invention, a guide inclined plane is arranged on the first hinge part, an included angle between the guide inclined plane and the opening and closing side direction of the inner side wall of the door body is an acute angle, and a thrust part is fixedly arranged on the second hinge part and is in contact fit with the guide inclined plane when the door is closed.
In one aspect of the invention, the thrust member is a cam structure, a piston structure or a shaft structure.
In one embodiment of the present invention, the thrust piece is a third shaft, and the guiding inclined plane is a side wall of the third groove.
In the scheme of the invention, the ratio of the distances between the first shaft body and the second shaft body and the reference surface 3 is 1:1.8-1:3.3, and the ratio of the distances between the first shaft body and the second shaft body and the reference surface 2 is 1:1.47-1:1.6.
In the scheme of the invention, the ratio of the linear distances between the first shaft body and the third shaft body and the reference surface 2 is 1:1-1:2.8, and the distance between the first shaft body and the third shaft body in the y-axis direction is 25mm or more.
In one scheme of the invention, the included angle between the initial movement direction of the first shaft body and the second shaft body and the side wall of the box body is between 0 and 25 degrees, the difference value is between 0 and 10 degrees, and the angle of the first shaft body is larger than that of the second shaft body.
In one aspect of the present invention, the included angle in the tangential direction of the center line of the second groove part and the fifth groove part is greater than 20 °.
The refrigerator comprises a refrigerator body and a door body, wherein the refrigerator body and the door body are rotationally connected through the hinge structure.
The invention has the beneficial effects that:
The hinge structure comprises the first groove body and the second groove body, and the first groove part of the first groove body and the fourth groove part of the second groove body extend towards the direction of the junction surface of the box and the door, so that the door body can move away from the box in the first stage in the moving process of the first shaft body and the second shaft body in the corresponding groove bodies, the door box space in the closing state can be reduced while the opening and closing of the door body is not influenced, and even zero space can be realized. And the problem of influencing the door seal structure can not occur to the door body provided with the door seal.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a perspective view illustrating a structure of a refrigerator apparatus according to the present invention;
FIG. 2 is a schematic view of a part of the structure of the invention in a closed door state in cooperation with an environmental structure;
FIG. 3 is a schematic diagram of the structure of the instant stress of the door in the door closing state;
FIG. 4 is a schematic view of the hinge structure of the present invention;
FIG. 5 is a schematic view of the structure of the first hinge member of the present invention;
FIG. 6 is a schematic view of a door body according to the present invention in a first stage of opening;
FIG. 7 is a schematic view of the structure of the door body of the present invention in the first stage of opening;
FIG. 8 is a schematic diagram of the split vector of the first stage trajectory of point b of the present invention;
FIG. 9 is a schematic view of the second stage of opening and closing the door body according to the present invention, wherein the second stage of opening and closing the door body is accompanied by a motion trace of points a and b in the whole opening and closing process;
FIG. 10 is a schematic view showing the structure of the door body of the present invention opened and closed to 90 degrees;
FIG. 11 is a schematic view of the structure of the door body of the present invention at a third stage of the opening process;
FIG. 12 is a schematic view of the door body in a relationship between maximum opening angle and environmental structure;
FIG. 13 is a schematic diagram of the motion trail of points a and b in the whole opening and closing process;
FIG. 14 is a graph showing the angle between the moving direction of the shaft body and the reference plane 1 in the whole opening and closing process of the invention;
FIG. 15 is a graph showing the angle between the axis motion direction and the reference surface 2 during the whole opening and closing process of the present invention;
FIG. 16 is a graph showing the angle between the motion trace of the point a and the reference surface 2 in the whole opening and closing process of the invention;
FIG. 17 is a graph showing the angle between the moving direction of the shaft and the reference plane 1 in the first stage of opening the door body according to the present invention;
FIG. 18 is a graph showing the angle between the direction of motion of the shaft and the reference surface 2 at the first stage of opening the door body according to the present invention;
FIG. 19 is a graph showing the angle between the direction of motion of the shaft and the reference plane 1 in the second stage of opening the door body according to the present invention;
FIG. 20 is a graph showing the angle between the direction of motion of the shaft and the reference surface 2 in the second stage of opening the door of the present invention;
FIG. 21 is a graph showing the angle between the moving direction of the shaft and the reference plane 1 in the third stage of opening the door body according to the present invention;
fig. 22 is a graph showing the angle between the moving direction of the shaft and the reference surface 2 in the third stage of opening the door body.
The reference numerals in the figures are:
10. The door comprises a box body, 20, a door body, 30, a first groove body, 40, a second groove body, 50, a third groove body, 60, a first shaft body, 70, a second shaft body, 80 and a third shaft body;
31. 32, second groove parts, 33, third groove parts;
41. Fourth groove part, 42, fifth groove part, 43, sixth groove part.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Referring to fig. 1-22, a refrigeration device is disclosed, and the refrigeration device provided in an embodiment of the present application includes a low-temperature storage device such as a refrigerator, a freezer, an ice bar, and the like. Of course, the refrigeration appliance may be other appliances having a housing and a door assembly, and requiring the door assembly to be rotatable relative to the housing. The following description of the refrigeration appliance of the embodiments of the present application is set forth in terms of a refrigerator, which is provided for discussion purposes only and is not intended to limit the specific form of the refrigeration appliance.
When the door body is mounted to a fixed box body or a door frame through the hinge assembly, the door body possibly interferes with the box body or the door frame in the movement process, so that the existing refrigerator and hinge technology have to increase the distance between the door and the box in order to prevent the side edge of the door body from interfering with the box body when the door box is opened and closed, and then the heat conduction inside and outside the box body of the refrigerator product can be influenced, and the power consumption is increased. Even so, in the case of door body installation door seal, still there is the possibility that door seal is compressed and deformed by side direction in the opening and closing of conventional hinge, influences sealed effect. (the lateral extrusion deformation of the door seal means that the door seal and the box body interfere until the door seal is deformed and attached in the opening and closing process, so that the door seal performance is negatively affected, the actual sealing design effect cannot be achieved, and meanwhile, the hidden danger of cold leakage exists).
In order to solve the foregoing problems, referring to fig. 1-22, the present application provides a hinge assembly with special track and capable of realizing the change of the space between the door and the box, so that the side edge of the door does not or very little rotate at the moment of opening or closing the door, the side edge of the door close to the box does not move towards the direction close to the box, the running track of the door is changed integrally, the space between the door and the box is reduced effectively (zero space is realized), the sealing effect is improved, and the power consumption of the refrigerator is reduced.
Before the hinge assembly of the embodiment of the present invention is described, an application scenario of the hinge assembly of the embodiment of the present invention is described, but the application scenario of the hinge assembly of the embodiment of the present invention is not limited to the scenario of the enumerated application.
Referring to fig. 1 to 13, the hinge assembly according to the embodiment of the present invention may be applied to a door body 20 connected to a case 10 to be opened and closed, and a user may directly observe a front side of the door body 20, and may also be applied to a door body 20 of an embedded (flush) refrigerator type refrigerating apparatus, the front side of the door body 20 being flush with a front wall of an environmental structure. Under the condition of embedded arrangement of the door body, the side edges of the door body 20 are required to be ensured not to interfere with the environment structure, and the opening and closing angles of the door body 20 are ensured.
Referring to fig. 2, the environmental structure may be understood as a wall, a cabinet, an appliance, etc. The side edge (hereinafter referred to as a first side edge, i.e., point a) of the door body 20 may be understood as being located at a junction of a front side surface of the door body 20 and a first sidewall (a left sidewall or a right sidewall of the door body 20, in the drawing, a right sidewall) located at an adjacent side surface of the door body 20, the first sidewall being located at a hinge side of the door body 20, the hinge assembly being mounted at the hinge side of the door body 20, an opening and closing side of the door body 20 being disposed opposite to the hinge side in a left-right direction, and a front side surface of the door body 20 being connected to a second sidewall at the opening and closing side, the second sidewall being disposed opposite to the first sidewall in the left-right direction. Wherein a user generally grasps the door body 20 at the opening and closing side to open and close the door body 20. Regarding the first side edge, when the front side surface of the door body 20 intersects the first side wall, the intersection is the first side edge, and when a chamfer area is provided between the front side surface of the door body 20 and the first side wall, any straight line extending along the height direction of the chamfer area can be understood as the first side edge, the first side edge is not limited to a fixed edge line, and the first side edge can be switched among a plurality of perpendicular lines between the front side surface of the door body 20 and the first side wall. The second side edge (point b) of the door body 20 is located at the connection between the first side wall and the rear side surface (the surface of the door body 20 corresponding to the bonding surface of the box 10) of the door body 20.
Referring to fig. 2-12, a hinge assembly includes a first hinge member and a second hinge member, wherein a first slot body 30 and a second slot body 40 are provided on the first hinge member, a first shaft body 60 and a second shaft body 70 are fixedly provided on the second hinge member, the first shaft body 60 is inserted into the first slot body 30, and the second shaft body 70 is inserted into the second slot body 40. The first hinge member and the second hinge member are configured as a dual-shaft dual-groove matching structure, the first shaft body 60 moves in the first groove body 30, the second shaft body 70 moves in the second groove body 40 to drive the first hinge member and the second hinge member to open or close relatively, when one of the first hinge member and the second hinge member is mounted on the door body 20, the other is mounted on the box body 10 or the door frame, the opening and closing control of the door body 20 can be realized.
Referring to fig. 2-12, in the following embodiments, one of the first hinge member and the second hinge member is disposed on the door body 20, and the other is disposed on the case 10. Wherein the front side of the case 10 is provided with an opening, and the door body 20 is switched between an open state of opening and closing the case 10. One of the first hinge member or the second hinge member is provided at the hinge side of the door body 20 (or the case 10), it is understood that the first hinge member or the second hinge member is integrally formed with the door body 20 (or the case 10), or the first hinge member or the second hinge member is a separate part and fixedly installed at the door body 20 (or the case 10).
Referring to fig. 2 to 12, the first slot 30 includes a first slot 31, a second slot 32 and a third slot 33 which are communicated, and the second slot 40 includes a fourth slot 41, a fifth slot 42 and a sixth slot 43 which are communicated. The first groove 31 and the fourth groove 41 extend from the start end in the direction of the mating surfaces (reference surface 1) of the door body 20 and the door body 10 in the closed state. The included angle of the tangent line of the center line of the second groove part 32 and the fifth groove part 42 gradually increases, so that the door body 20 is ensured to be opened as soon as possible relative to the box body 10. The third groove portion 33 and the sixth groove portion 43 have groove structures concentric with each other and having different radii. In the case of the first shaft body 60 in the first groove 31, the second shaft body 70 is positioned in the fourth groove 41, and at this time, the first shaft body 60 and the second shaft body 70 are movable in a direction approaching the reference plane 1 with respect to the groove structure. The first shaft 60 is positioned in the second slot 32 and the second shaft 70 is positioned in the fifth slot 42 when moving. When the third groove 33 is operated, the first shaft 60 is positioned in the sixth groove 43, and the second shaft 70 is positioned in the sixth groove. The sixth groove 43 corresponds to the second shaft body 70, and the third groove 33 has an arc-shaped structure extending along the center of the sixth groove 43. The terminating end of the first groove 31 is provided with the second groove 32 such that the first shaft body 60 is movable from the first groove 31 to the second groove 32, and the terminating end of the fourth groove 41 is provided with the fifth groove 42 such that the second shaft body 70 is movable from the fourth groove 41 to the fifth groove 42.
Referring to fig. 2-12, the first hinge member and the second hinge member are switched between an initial position in which the first shaft body 60 is positioned at an end of the first slot portion 31 remote from the second slot portion 32, the second shaft body 70 is positioned at an end of the fourth slot portion 41 remote from the fifth slot portion 42, and an open position in which the first shaft body 60 moves within the first slot body 30 and the second shaft body 70 moves within the second slot body 40, and in which the first shaft body 60 is positioned at the third slot portion 33 and the second shaft body 70 is positioned at the sixth slot portion 43.
Referring to fig. 2-12, first transition portions are respectively disposed between the first groove portion 31 and the second groove portion 32, and between the fourth groove portion 41 and the fifth groove portion 42, so that the first rotating shaft can smoothly enter the second groove portion 32 from the first groove portion 31, and meanwhile, the second rotating shaft can smoothly enter the fifth groove portion 42 from the fourth groove portion 41. Similarly, a second transition portion is provided between the second groove portion 32 and the third groove portion 33, and between the fifth groove portion 42 and the sixth groove portion 43, so that the whole door opening track is smooth and smooth by providing the transition portion. The fifth groove portion 42 and the sixth groove portion 43 are disposed at an included angle, and the inner side wall between the fifth groove portion 42 and the sixth groove portion 43 protrudes outward to form a blocking portion, so that the second shaft body 70 can be positioned in the sixth groove portion 43 when the first shaft body 60 is positioned in the third groove portion 33, and the door body 20 performs a uniaxial opening and closing action with the second shaft body 70 at this stage. Meanwhile, the second shaft body 70 enters the sixth groove portion 43 from the fifth groove portion 42 and the positioning process is completed, so that the first hinge member moves towards the opening side direction relative to the second hinge member, the distance that the first side edge moves outwards in the opening process is reduced, and the first side edge of the door body 20 is prevented from interfering with the adjacent environment.
Referring to fig. 2 to 12, in an initial stage of opening the door, a user generally grasps the door body 20 at the opening and closing side to open and close the door body 20. In the above-mentioned double-shaft double-groove matching track, the motion direction of the first shaft body 60 and the second shaft body 70 relative to the groove body is approximately towards the matching surfaces of the box body 10 and the door body 20 at the initial time, and at the moment of opening the door, the door opening acting force has a larger deviation from the motion direction of the hinge structure, so that the door body 20 may have a problem of jamming in the opening and closing process. The existence of the fit clearance between the shaft body and the slot body makes the door body 20 generate a false movement center state at the moment of opening and closing the second shaft body 70, thereby further improving the possibility of blocking. Therefore, a guiding inclined plane is disposed on the first hinge member, and the included angle between the guiding inclined plane and the opening and closing side direction of the inner side wall of the door body 20 is an acute angle. And a thrust piece is fixedly arranged on the second hinge piece, and is in contact fit with the guide inclined plane when the door is closed. In this way, at the moment of opening the door, no matter how the direction of the acting force of the door body 20 changes, by the cooperation of the thrust piece and the guiding inclined plane, a component force exists in the y-axis negative direction all the time, so that the movement of the hinged side of the door body 20 and the rotation of the door body are synchronous.
Referring to fig. 2-12, the thrust member may be a cam, a piston (ram), a shaft, or other means. When the structural expression form of the thrust piece changes, the guiding inclined plane is suitable for the structural expression form. By way of example, the thrust piece is a third shaft 80, and the guide bevel is embodied by a corresponding third groove 50 formed in the second hinge piece. The ratio of the distances between the first shaft body 60 and the third shaft body 80 and the reference surface 2 is 1:1-1:2.8, and the distance between the first shaft body 60 and the third shaft body 80 in the y-axis direction is 25mm or more.
The working principle of the invention is as follows:
Referring to fig. 1 to 22, the opening and closing process of the door body 20 is described below by fixing the first hinge on the door body, fixing the second hinge on the box body 10, wherein the door body 20 may also be directly used as the first hinge, and at this time, the first slot body 30 and the second slot body 40 are directly opened at the end positions of the door body 20.
Referring to fig. 2 to 22, in the door-closed state, a plane on the side surface of the case 10 for matching with the door body 20 is defined as a reference surface 1, a plane on the side surface of the case 10 perpendicular to the reference surface 1 is defined as a reference surface 2, a plane parallel to the reference surface 1 and spaced apart by a specified distance (the specified distance may be the door thickness t) is defined as a reference surface 3, a plane parallel to the reference surface 2 and spaced apart by a specified distance is defined as a reference surface 4, the reference surface 4 may be understood as a plane parallel to the side surface of the case 10, wherein a reference point e is set on the reference surface 4, and may be understood as a side edge position of the environmental structure. The distance between the reference surface 2 and the reference surface 4 is h, i.e. the distance between the side wall of the tank 10 and the surrounding structure. The hinge assembly is located at a position between the reference surfaces 1, 3. In this embodiment, the plane on which the front side of the door body 20 is located may be selected as the reference plane 3. A coordinate system is established with reference plane 1 as the x-axis and reference plane 2 as the y-axis in a top/bottom view. Meanwhile, four points (the positions are shown in fig. 3) of a, b, c, d are arranged in four directions, ab coincides with the reference surface 2 in the closed state, bc is parallel to the reference surface 1, the vertical distance between the point b and the reference surface 1 is L1 (the distance between the points b and the reference surface 1 in the closed state is the distance between the door boxes in the closed state, the vertical distance between the point b and the reference surface 1 is defined as s in the door closing state), and the vertical distance between the point a and the reference surface 2 is L2.
Referring to fig. 2-12, in the door-closed state, the first shaft 60 is located at the start end of the first slot 30, and the second shaft 70 is located at the start end of the second slot 40. At this time, the ratio of the distances between the first shaft body 60, the second shaft body 70 and the reference surface 3 is 1:1.8-1:3.3 (when in the flush-mounted environment, the outer side surface (reference surface 3) of the door body needs to be level with the environmental structure, so that in order to ensure that the front side surface of the door body does not interfere with the environmental structure during the opening and closing process, it is required to ensure that the distances between the first shaft body 60, the second shaft body 70 and the reference surface 3 conform to the set range, the numerical variation of the thickness t of the door body 20 can only be represented by the variation of the parameters between the first shaft body 60, the second shaft body 70 and the reference surface 1), and the ratio of the distances between the first shaft body 60, the second shaft body 70 and the reference surface 2 is 1:1.47-1:1.6. The door body and the box body 10 are opened and closed under the linking action of the hinge assembly, and the opening and closing process is divided into three stages, wherein symbols I, II and III are respectively adopted to refer to the opening and closing process of the three stages. Further, I1 indicates the movement direction of the first shaft 60 (the movement trend of the first shaft 60 relative to the first groove 30) in the first stage, and II1 indicates the movement direction of the first shaft 60 in the second stage. (the illustration is not a motion of the shaft, but a motion of the shaft relative to the slot). Δi1 represents the reference angle difference of a certain track in this stage, and α represents the door opening angle.
Referring to fig. 2-12, the first stage is a variable pitch stage, and the door opening angle of the stage is less than or equal to 5 °. The door opening force F of the user acts on the opening and closing side, and under the action of the reaction force, the third shaft body 80 applies a force F1 to the door body through the third groove body 50, and the force F1 has a component force at least in the y-axis negative direction (the direction away from the reference surface 1) along the normal direction of the contact point with the guiding inclined surface, so that the door body 20 will not get stuck at the moment of opening.
Referring to fig. 2-12, the first shaft 60 then moves in the first slot 31, the second shaft 70 moves in the fourth slot 41, and the initial movement direction is directed to the reference plane 1 or at least there is a movement component in the direction of the reference plane 1. So that the door body can move in the y-axis direction at this stage, the door body moves away from the direction of the box body 10 in the door opening process, the opening and closing actions of the door body 20 can be optimized, the door box spacing in the door closing state is reduced, and the door body with the door seal can also prevent the problems of lateral extrusion deformation of the door seal and the box body 10.
Referring to fig. 2 to 12, in the first stage, in the motion track of the door body 20, the point b is used as a research point, when the door body is in a closed state, the position of the point b is b0, and the distance between any point L1 is only increased and not reduced in the process of moving the point b from b0 to b1 through the cooperation of the hinge, i.e. L1 is equal to or greater than the door box distance. Because the force does not directly act on the hinge during the door opening process, the direction of the force F is changed along a curved track according to the door opening mode of a human body under the conventional condition, and the direction of the initial force F should be perpendicular to the surface of the door body or point to the fourth quadrant with an included angle smaller than 45 ° (the force point of F is taken as the origin, the right is x positive, and the upper is y positive) coordinate system. Therefore, to meet the condition that L1 is larger than or equal to the distance between the door boxes, the door needs to be moved in the negative y-axis direction at the moment of opening the door, namely the initial moving direction of the point b points to the position below the reference surface 1.
To meet the above requirement, the initial movement directions I1 and I2 of the first shaft body 60 and the second shaft body 70 in the first stage should be directed to the upper left of the initial position (the second quadrant of the coordinate system), and I3 should be directed to the first quadrant. At the end of the first phase from the initial position, the directions of movement I1 and I2 of the first shaft 60 and the second shaft 70 should be rotated clockwise from pointing to the second quadrant to pointing to the first quadrant. The angle between the initial motion direction I1 and the initial motion direction I2 and the y axis is 0-25 degrees, the angle I1 is greater than I2, and the difference is 0-10 degrees. I3 initial direction of motion angle is greater than 0.3 times (I1+I2) and less than 180 °.
The legend takes a 2 ° opening angle as an explanatory case. The point b1 is the position when the door body is opened to 2 degrees, the distances from b0 to b1 (b 0b1 is the direction scale and is not the actual track of the point b) are decomposed into two vector distances in the x direction and the y direction, namely bx and by, and 0< by is less than or equal to 0.2bx, namely the included angle 0< theta <30 degrees between the b0b1 and the reference surface 2 is satisfied. When the angle is opened by 0-2 degrees, the track of the point b is similar to linear motion, and the track of the point b can be known, wherein the circle center of the osculating circle of the point b in the stage I is always positioned at the upper left of the point b.
Referring to fig. 2-13, the center of the osculating circle of the second-stage b-point track changes to the lower right, so that a transition stage is required to prevent the track from being stuck, and the transition stage has an opening and closing angle process of at least 1 °. In the first transition phase, the first shaft body 60 is moved from the first groove 31 to the second groove 32, and at the same time, the second shaft body 70 is moved from the fourth groove 41 to the fifth groove 42. The graph is characterized in that the transition process is 2-9 degrees, the b-point track gradually decreases in the by direction unit variable, and the bx direction unit variable gradually increases so as to smoothly combine the curve of the second stage and prevent clamping. In the transition stage, in the process that the included angle between the moving direction of the first shaft body 60 and the reference surface 1 is integrally reduced, there is a sudden increase process (the included angle between the extending line of the moving direction of the first shaft body 60 and the positive direction of the x axis), and the process is a process that the circle center position of the osculating circle of the b-point track is changed from the upper left to the lower right. And ending the transition stage, wherein the angle change quantity of the movement direction of I3 is larger than the sum of I1 and I2 which are 0.5 times and the initial angle change quantity of the movement (namely delta I3 is more than or equal to 0.5 (delta I1 plus delta I2)), and the angle of the movement direction of I3 ending the transition stage is smaller than 180 degrees. And at this time, the degree of the included angle between the moving direction of the second shaft body 70 and the reference plane 1 is 45 ° or less. If the door seal is mounted on the inner side of the door body 20, the motion track of the door seal is similar to the motion track of the point b, and after a distance (the distance between the box and the door in the closed state) is set, the door body 20 will firstly perform an approximately linear distance motion in a direction away from the box 10, so that interference and friction with the box 10 will not occur in the opening and closing process.
Referring to fig. 2-13, the track of the first stage is gradually transited to the track of the second stage after the track of the first stage is ended, and the angle between the force and the moving direction is not too large any more, so that the third shaft body 80 is separated from the third groove 33 at the end of the first stage, the moving track of the hinge structure is changed from three shafts to two shafts, so that the friction consumption of the third shaft body 80 is reduced, the moving complexity of the hinge structure is reduced, and the smoothness of opening and closing the door body 20 is ensured.
Referring to fig. 2-13, the second stage trajectory starts, the angle between the initial movement direction II1 and the reference plane 2 is between 0 ° and 20 °, the angle between the initial movement direction II2 and the reference plane 2 is between 20 ° and 45 °, and the angle difference between II1 and II2 in the second stage is always greater than 20 °. The angular changes of the processes II1 and II2 become smooth and then large. The included angle between the two is gradually increased from stabilizing to finally stabilizing, which indicates that the stage is finished. In the process of moving the shaft body in the groove body relative to the groove body (namely, the process of moving one hinge piece relative to the other hinge piece), the instantaneous moving direction of a certain point is consistent with the tangent line of the center line (the axis body movement track line) of the groove body at the point. To accommodate market variations and user application requirements, at this stage the door body 20a point should be no more than h (which may be 3mm, as an example) beyond the reference surface 2. Therefore, the included angle between the moving direction angle of the second shaft body 70 and the reference plane 1 at this stage should be always kept below 45 degrees, so that the movement of the door body always keeps the distance that the point a moves rightward to be less than 3mm.
Referring to fig. 2 to 13, as an example, the angle difference between II1 and II2 becomes larger gradually after the door body 20 is opened by 15 ° to prevent the problem that the distance of L2 is excessively large over h when the point a reaches the same horizontal line as the circle center of the track osculating circle. The point a in this example reaches above the centroid of the trajectory at 55 ° (i.e., where L2 is greatest), after which the distance of L2 becomes progressively smaller. The angle difference between II1 and II2 will gradually stabilize, indicating that this phase is over. The angle between the direction of movement of II2 and the reference plane 1 at the end of the second phase is between-45 ° and-55 ° (the minus sign indicates the direction), and the angle between the direction of movement of the initial position of the third phase exceeds 90 °.
Referring to fig. 2-13, after the second stage is completed, a third stage is entered, which may include a second transition stage from the second stage to the third stage, the first shaft body 60 moves from the second slot portion 32 to the third slot portion 33, the second shaft body 70 moves from the fifth slot portion 42 to the sixth slot portion 43, and the positioning of the second shaft body 70 may be completed. As an example, the door body 20 completes the positioning of the second shaft body 70 at 66 ° to 80 °. In the third stage, the second shaft body 70 is moved from the beginning of the sixth groove portion 43 (the end near the fifth groove portion 42) to the end of the sixth groove portion 43, and on the movement locus of the door body, the door body is shown to move to the left side (i.e., the open-close side, the hinge side is on the right side in the drawing as an example, and the open-close side is on the left side) in the drawing to reduce interference of the front side of the door body, the first side wall and the surrounding environment. After the second shaft body 70 is positioned, at this time, the second shaft body 70 is positioned at the end of the sixth groove portion 43, the first shaft body 60 is operated in the third groove portion 33, and the hinge track is changed from biaxial to uniaxial-like motion rotating around the second shaft body 70. The process can reduce friction, reduce the structural failure rate and improve the track smoothness.
Referring to fig. 2-13, the third stage is mainly to transition the trajectory to a single axis rotation, so that the movement angle of the first shaft 60 is substantially stable, and the movement direction angle of the second shaft 70 is substantially linearly changed. In the third stage, due to the sixth groove portion 43 disposed at an angle with the fifth groove portion 42, when the door body 20 is opened and closed to about 80 °, the hinge side of the door body can be displaced a distance away from the direction of the environmental structure, and then the opening and closing actions of the single shaft are continued, so that the opening and closing angle of the door body 20 relative to the box 10 can be increased as much as possible while avoiding interference with the environmental structure.
Referring to fig. 2 to 13, a description will be given below of a movement track of the door body 20 by taking a case that the first hinge is connected to the door body 20 as an example, wherein two side edges of the door body 20, which are easy to interfere, are respectively identified as a first side edge point a and a second side edge point b in a top view. The point a prevents interference with the environmental structure and the box 10 during movement, and the point b prevents interference with the box 10. During the opening and closing process of the door body 20, no matter which hinge is used, the non-linear motion track of the door body has a curvature circle. Therefore, the motion track of the point b at any moment can be regarded as circular motion around a certain circle center, and the circle center of the curvature circle is changed at any moment only due to the change of the track. In the process of opening and closing the door body 20 with the special hinge structure of the present application, the movement track of the point a and the point b and the change chart of the center of circle of the point b are approximately shown in fig. 13.
Referring to fig. 2-13, in the first stage, at the beginning, the center of the osculating circle of the motion track of the point b is at the upper left of the point b, so that the motion direction of the initial position of the point b is downward or lower left. The opening angle is between 0 and 5 degrees. Thus, the point b can be quickly separated from the box body 10, the risks of friction and interference are reduced, and the ultra-thin door box spacing in a door closing state is realized. In the door body closing state, the initial position of the point b is b0, the point b1 is reached after the first stage, the distance from b0 to b1 is decomposed into two vector distances in the x direction and the y direction, namely bx and by, (b 0b1 is the direction scale and is not the actual track of the point b), and 0< by is less than or equal to 0.2bx, namely the included angle 0< theta <30 DEG between the point b0b1 and the reference surface 2 is satisfied. Meanwhile, the phase also satisfies the following parameters of L2=t tan alpha-bx, bx is larger than or equal to t tan alpha-h, L1=by= (tan alpha (90 ° -theta) bx)/alpha+s, wherein L1 is the vertical distance between a point b and a reference plane 1, L2 is the vertical distance between a point a and the reference plane 2, alpha is the door opening angle, theta is the included angle between a point b track and the reference plane 2, t is the door thickness, h is the distance between the side wall of the box 10 and an environment structure, and s is the vertical distance between the point b and the reference plane 1 in a closed state. The distance by is adjusted differently according to the actual situation, and by is approximately equal to the compensation height of the door seal.
In the door-closed state, the distance between the second shaft body 70 and the reference surface 4 is D1, the distance between the second shaft body 70 and the reference surface 3 is D2, and when the door body is opened by 90 °, the distance between the second shaft body 70 and the front side surface (reference surface 2) of the door body 20 is D3. In the opening and closing process of the door body 20, the straight-line pointing distance from the center of the second shaft body 70 to the point a is A1, and the straight-line pointing distance from the center of the second shaft body to the point e is B1. The maximum opening angle of the door body 20 satisfies αmax=90° +β, β being the opening angle value of the door body after opening 90 °, the angles β and D1, D2 satisfying the setting of cosβ=1- ((D1-D3) 2/B12), wherein B1 2=D12+D22, i.e. cosβ=1- ((D1-D3) 2/(D12+D22). Wherein D1-D3 is more than or equal to 0 and less than or equal to 11, D1+D2 is more than or equal to 32.5 and less than or equal to 48, and beta is more than or equal to 0 and less than or equal to 50 degrees. The positional relationship of the first shaft body 60 and the second shaft body 70 satisfies tan γ= (O 1O3)/(O2O3), where 0.58< tan γ <0.63, 30 ° < γ <32 °.
In the above three stages of the movement track of the door body 20 relative to the case 10, the first stage track is mainly used to make the door body 20 perform the motion away from the case 10 at the moment of opening the door, the second stage is the angle enlarging motion of the door body 10, and the third stage is mainly used to make the door body 20 move towards the opening and closing side so as to reduce the risk of interfering with the environmental structure, and further enlarge the maximum angle that the door body 20 can open. Therefore, in the three stages, the first stage and the second stage can be independently implemented to achieve the purpose of reducing the distance between the door and the box. The second stage and the third stage can be independently implemented to solve the problems of interference between the door body 20 and the environment structure and insufficient door opening angle. In addition, the whole opening schemes of the first stage, the second stage and the third stage can be taken as a whole, and can also be respectively combined with the prior related technology to solve the corresponding technical problems.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All such equivalent changes and modifications as come within the scope of the following claims are intended to be embraced therein.

Claims (10)

1. A hinge structure, comprising:
The first hinge piece is provided with a first groove body and a second groove body, the first groove body comprises a first groove part and a second groove part which are communicated, the second groove body comprises a fourth groove part and a fifth groove part which are communicated, the first groove part and the fourth groove part extend from a starting end to the direction of a matching surface of the door body and the box body in a door closing state, and the included angle of the tangent line of the central line of the second groove part and the tangent line of the central line of the fifth groove part are gradually increased;
The second hinge piece is fixedly provided with a first shaft body and a second shaft body, the first shaft body is inserted into the first groove body, and the second shaft body is inserted into the second groove body;
the first hinge member and the second hinge member are switched between an initial position in which the first shaft body is located at an end of the first groove portion away from the second groove portion, and an open position in which the second shaft body is located at an end of the fourth groove portion away from the fifth groove portion, and the first shaft body moves in the first groove portion and the second shaft body moves in the second groove portion.
2. A hinge structure according to claim 1, wherein first transition portions are provided between the first and second, fourth and fifth groove portions, respectively.
3. The hinge structure according to claim 1, wherein the first hinge member is provided with a guiding inclined plane, an included angle between the guiding inclined plane and an opening and closing side direction of an inner side wall of the door body is an acute angle, and the second hinge member is fixedly provided with a thrust member, and the thrust member is in contact fit with the guiding inclined plane in a door closing state.
4. A hinge structure according to claim 3, wherein the thrust member is a cam structure, a piston structure or a shaft structure.
5. A hinge structure according to claim 3, wherein said thrust member is a third shaft and said guide slope is a side wall of a third groove.
6. The hinge structure according to claim 5, wherein a distance ratio between the first shaft body and the second shaft body and the reference surface 3 is 1:1.8-1:3.3, and a distance ratio between the first shaft body and the second shaft body and the reference surface 2 is 1:1.47-1:1.6.
7. The hinge structure according to claim 6, wherein the ratio of the linear distances between the first shaft body and the third shaft body to the reference surface 2 is 1:1-1:2.8, and the distance between the first shaft body and the third shaft body in the y-axis direction is 25mm or more.
8. The hinge structure according to claim 1, wherein the first shaft body and the second shaft body have an initial movement direction with respect to the side wall of the case body of 0 ° to 25 ° and a difference of 0 ° to 10 °, and the angle of the first shaft body is larger than the angle of the second shaft body.
9. A hinge structure according to claim 1, wherein the tangential included angle of the centre lines of the second and fifth slot portions is greater than 20 °.
10. A refrigerator comprising a cabinet and a door body rotatably connected by a hinge structure according to any one of claim 1 9.
CN202411852182.5A 2024-12-16 2024-12-16 Hinge structure and refrigerator Pending CN119664198A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202411852182.5A CN119664198A (en) 2024-12-16 2024-12-16 Hinge structure and refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202411852182.5A CN119664198A (en) 2024-12-16 2024-12-16 Hinge structure and refrigerator

Publications (1)

Publication Number Publication Date
CN119664198A true CN119664198A (en) 2025-03-21

Family

ID=94983315

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202411852182.5A Pending CN119664198A (en) 2024-12-16 2024-12-16 Hinge structure and refrigerator

Country Status (1)

Country Link
CN (1) CN119664198A (en)

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