Hinge of portable mobile terminal

Abstract

The utility model provides a hinge of a portable mobile terminal, which comprises a middle fixing seat, a first rotating connecting arm, a casing connecting piece and a second rotating connecting arm, and the inner end and the outer end of the second rotating connecting arm are respectively and rotatably connected with the middle fixing seat and the casing connecting piece by adopting a first virtual rotating shaft rotating connecting structure and a second virtual rotating shaft rotating connecting structure. The second rotary connecting arm is divided into a first section and a second section which are rotationally connected through a third virtual rotary shaft rotary connecting structure, the rotating axes of the third virtual rotary shaft rotary connecting structure and the first virtual rotary shaft rotary connecting structure coincide, and a first limiting structure and a second limiting structure are arranged to limit the lap joint length of the first virtual rotary shaft rotary connecting structure and the third virtual rotary shaft rotary connecting structure during folding and closing. Through the inner and outer side virtual rotating shafts and the rotating connecting rod with two sections of virtual rotating shafts on the inner side, the rotating connecting rod can be applied to the infolding flexible screen mobile terminal, the thinning requirement is met, and meanwhile the problem that in the whole machine thinning process, the rotating connecting rod of the virtual rotating shafts and the middle fixing base are stuck or disengaged due to insufficient lap joint amount is solved.

Description

Technical Field

[0001] The utility model relates to a hinge of a portable mobile terminal, in particular to a hinge of an inward-folding flexible screen mobile terminal. The portable mobile terminal may be a mobile phone, a notebook computer, etc. Background Art

[0002] For an inward-folding flexible screen mobile terminal, the flexible screen is laid on the inside, and when the mobile terminal (such as a mobile phone) is folded and closed, the middle part of the flexible screen bends and bulges. The portable mobile terminal will use the rotating support plates on both sides of the middle to rotate at a greater angle relative to the shell to provide space for accommodating the curved bulging part in the middle of the flexible screen. In the past, a push-pull rod was used to push the rotating support plate to rotate, but the structure was relatively complicated. At present, there is also a relatively simple structure to realize the above-mentioned space providing function, which uses a virtual shaft rotating connecting rod to be rotatably connected to the middle fixed seat through a virtual shaft, and the rotating support plate is fixedly connected to the virtual shaft rotating connecting rod. The virtual shaft rotating connecting rod is rotatably connected to the housing fixing part through the real shaft, but this structure is difficult to adapt to thinner inward-folding flexible screen mobile terminals, and once it is made thin, there is a problem that the virtual shaft rotating connecting rod has a small overlap with the middle fixed seat in the folded and closed state, and is easy to get stuck or disengaged. Utility Model Content

[0003] The purpose of the utility model is to provide a hinge for a portable mobile terminal, which can be applied to a thinner inward-folding flexible screen mobile terminal and is not easy to get stuck or disengaged. To this end, the utility model adopts the following technical solutions:

[0004] A hinge for a portable mobile terminal comprises an intermediate fixed seat, a motion mechanism on the left side and a motion mechanism on the right side, wherein the motion mechanism comprises a first rotating connecting arm, a casing connecting member and a second rotating connecting arm, wherein the first rotating connecting arm is rotationally connected to the intermediate fixed seat, the casing connecting member is slidably connected to the first rotating connecting arm, the inner end of the second rotating connecting arm is rotationally connected to the intermediate fixed seat, and the outer end is rotationally connected to the casing connecting member, characterized in that the inner end and the outer end of the second rotating connecting arm are rotationally connected to the intermediate fixed seat and the casing connecting member respectively by adopting a first virtual rotating shaft rotation connection structure and a second virtual rotating shaft rotation connection structure, the second rotating connecting arm is divided into a first section and a second section for rotational connection, the first section and the second section are rotationally connected by adopting a third virtual rotating shaft rotation connection structure, and the rotation axis of the third virtual rotating shaft rotation connection structure coincides with that of the first virtual rotating shaft rotation connection structure, and a first limiting structure and a second limiting structure are respectively provided for the first virtual rotating shaft rotation connection structure and the third virtual rotating shaft rotation connection structure to limit the overlap length of the first virtual rotating shaft rotation connection structure and the third virtual rotating shaft rotation connection structure when folded and closed.

[0005] On the basis of adopting the above technical solutions, the utility model can also adopt the following further technical solutions, or use these technical solutions in combination:

[0006] The first limiting structure is fixed on the middle fixing seat; the second limiting structure is fixed on the second rotating connecting arm.

[0007] The first section is rotationally connected to the middle fixed seat through the first virtual shaft rotation connection structure, is rotationally connected to the inner end of the second section through the third virtual shaft rotation connection structure, and the outer end of the second section is rotationally connected to the casing connector through the second virtual shaft rotation connection structure.

[0008] The first virtual axis rotation connection structure, the second virtual axis rotation connection structure and the third virtual axis rotation connection structure are all constructed by sliding connection between an arc slider and an arc guide rail; the portable mobile terminal is an inward-folding flexible screen mobile terminal. When in a flattened state, the rotation axes of the first virtual axis rotation connection structure and the third virtual axis rotation connection structure are respectively located above the support surface of the flexible screen; the overlap amount corresponds to the overlapping arc length of the arc slider and the arc guide rail.

[0009] The first limiting structure and the second limiting structure are respectively arranged between the corresponding arc slider and the arc guide rail.

[0010] The first limiting structure and the second limiting structure also allocate a proportional relationship between the overlapping length of the first virtual rotating shaft rotation connection structure and the overlapping length of the third virtual rotating shaft rotation connection structure when folded and closed.

[0011] The portable mobile terminal is an inward-folding flexible screen mobile terminal. A support section is arranged on the second section, and a connection position of a flexible screen rotation support plate is arranged on the support section. When in a flattened state, the rotation axes of the first virtual rotation axis rotation connection structure and the third virtual rotation axis rotation connection structure are respectively located above the support surface of the flexible screen.

[0012] The connection position is a screw hole, and the flexible screen rotation support plate is fixed on the second section.

[0013] The first rotating connecting arm is rotatably connected to the intermediate fixing seat via a real shaft, and a rotation resistance torque mechanism is arranged between the real shaft and the first rotating connecting arm.

[0014] Due to the adoption of the technical solution of the utility model, the utility model can be applied to thinner inward-folding flexible screen mobile terminals through a rotating connecting rod with virtual rotating shafts on both the inner and outer sides and two sections of virtual rotating shafts on the inner side, so as to meet the thinning requirements and at the same time solve the problem of the virtual rotating shaft rotating connecting rod and the middle fixing seat getting stuck or disengaged due to insufficient overlap during the thinning process of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an exploded view of an embodiment provided by the utility model.

[0016] Figure 2 This is a top view of an embodiment provided by the utility model.

[0017] Figure 3 , Figure 4 The edges of the folded closed state and the flattened state are Figure 2 Section view along line AA.

[0018] Figure 5 , Figure 6 The edges of the folded closed state and the flattened state are Figure 2 Cross-sectional view along line BB. DETAILED DESCRIPTION

[0019] Referring to the accompanying drawings, the utility model provides a hinge of a portable mobile terminal, comprising a middle fixing seat 100, a left motion mechanism and a right motion mechanism, wherein the left motion mechanism and the right motion mechanism can adopt a symmetrical and identical structure. The portable mobile terminal is an inward folding flexible screen mobile terminal.

[0020] The motion mechanism includes a first rotating connecting arm 1, a housing connecting member 3, and a second rotating connecting arm. The first rotating connecting arm 1 is rotatably connected to the intermediate fixing seat 3, the housing connecting member 3 and the first rotating connecting arm are slidably connected, and the rotation axis of the first rotating connecting arm 1 is also the rotation axis of the left shell / right shell of the portable mobile terminal. The first rotating connecting arm 1 is rotatably connected to the intermediate fixing seat 3 through a real shaft 10, and a rotation resistance torque mechanism 4 is provided between the real shaft 10 and the first rotating connecting arm 1, which can provide functions such as rotation resistance (operation feel), self-locking, and reset.

[0021] The inner end of the second rotating connecting arm is rotationally connected to the intermediate fixed seat 100, and the outer end is rotationally connected to the casing connecting member 3. Further, the inner end and the outer end of the second rotating connecting arm are rotationally connected to the intermediate fixed seat 100 and the casing connecting member 3 respectively by adopting a first virtual rotating axis rotating connection structure and a second virtual rotating axis rotating connection structure. The second rotating connecting arm is divided into a first section 21 and a second section 22 for rotational connection. The first section 21 and the second section 22 are rotationally connected by a third virtual rotating axis rotating connection structure, and the rotation axes of the third virtual rotating axis rotating connection structure and the first virtual rotating axis rotating connection structure coincide, that is, they share the same center Y2. A first limiting structure 8 and a second limiting structure 7 are respectively provided for the first virtual rotating axis rotating connection structure and the third virtual rotating axis rotating connection structure to limit the overlap length of the first virtual rotating axis rotating connection structure and the third virtual rotating axis rotating connection structure when folded and closed. Among them, the first section 21 is rotationally connected to the intermediate fixed seat 100 through the first virtual shaft rotation connection structure, and is rotationally connected to the inner end of the second section 22 through the third virtual shaft rotation connection structure, and the outer end of the second section 22 is rotationally connected to the casing connector 3 through the first virtual shaft rotation connection structure.

[0022] The first limiting structure and the second limiting structure are respectively arranged between the corresponding arc slider and the arc guide rail. The first limiting structure 8 is fixed on the intermediate fixing seat 100, and is slidably connected with the limiting groove 55 on the first section 21 to limit the first section 21; the second limiting structure 7 is fixed on the second section 22, and is slidably connected with the limiting groove 54 on the first section 21 to limit the second section 22.

[0023] The first virtual shaft rotation connection structure is formed by slidingly connecting the arc slider 51 and the arc guide rail 61, and the second virtual shaft rotation connection structure is formed by slidingly connecting the arc slider 52 and the arc guide rail 62, with the center of the circle being Y1, and the third virtual shaft rotation connection structure is formed by slidingly connecting the arc slider 53 and the arc guide rail 63. When in the flattened state, the rotation axes of the first virtual shaft rotation connection structure and the third virtual shaft rotation connection structure are respectively located above the support surface of the flexible screen; the overlap amount corresponds to the overlapping arc length of the arc slider and the arc guide rail.

[0024] The second section 22 is provided with a connection position of the flexible screen rotation support plate 200, and the connection position is a screw hole 9. The flexible screen rotation support plate 200 is fixed on the second section 22. The first virtual rotation axis rotation connection structure and the third virtual rotation axis rotation connection structure are respectively located above the flexible screen rotation support plate (the top surface of which is regarded as the support surface of the flexible screen). The second section 22 is provided with a support section 221, and the screw hole 9 is provided on the support section 221.

[0025] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the protection scope of the present invention.

[0026] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0027] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "inside", "horizontal", "end", "length", "outer end", "left", "right" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are also used only for the simplicity of description, and do not indicate or imply relative importance.

Claims

1. A hinge of a portable mobile terminal, comprising an intermediate fixed seat, a left motion mechanism and a right motion mechanism, wherein the motion mechanism comprises a first rotating connecting arm, a housing connecting member and a second rotating connecting arm, wherein the first rotating connecting arm is rotatably connected to the intermediate fixed seat, the housing connecting member and the first rotating connecting arm are slidably connected, the inner end of the second rotating connecting arm is rotatably connected to the intermediate fixed seat, and the outer end is rotatably connected to the housing connecting member, wherein the hinge comprises a first rotating connecting arm, a second ... The inner end and the outer end of the second rotating connecting arm are respectively rotatably connected to the intermediate fixed seat and the casing connecting part by adopting the first virtual rotating shaft rotating connecting structure and the second virtual rotating shaft rotating connecting structure. The second rotating connecting arm is divided into a first section and a second section of the rotating connection. The first section and the second section are rotatably connected by adopting the third virtual rotating shaft rotating connecting structure, and the rotation axis of the third virtual rotating shaft rotating connecting structure coincides with that of the first virtual rotating shaft rotating connecting structure. The first virtual rotating shaft rotating connecting structure and the third virtual rotating shaft rotating connecting structure are respectively provided with a first limiting structure and a second limiting structure to limit the overlap length of the first virtual rotating shaft rotating connecting structure and the third virtual rotating shaft rotating connecting structure when folded and closed.

2. A hinge for a portable mobile terminal as claimed in claim 1, characterized in that The first limiting structure is fixed on the middle fixing seat; the second limiting structure is fixed on the second rotating connecting arm.

3. A hinge for a portable mobile terminal as claimed in claim 1, characterized in that The first section is rotationally connected to the middle fixed seat through the first virtual shaft rotation connection structure, is rotationally connected to the inner end of the second section through the third virtual shaft rotation connection structure, and the outer end of the second section is rotationally connected to the casing connector through the second virtual shaft rotation connection structure.

4. A hinge for a portable mobile terminal as claimed in claim 1, characterized in that The first virtual axis rotation connection structure, the second virtual axis rotation connection structure and the third virtual axis rotation connection structure are all constructed by sliding connection of an arc slider and an arc guide rail; the portable mobile terminal is an inward-folding flexible screen mobile terminal. When in a flattened state, the rotation axes of the first virtual axis rotation connection structure and the third virtual axis rotation connection structure are respectively located above the supporting surface of the flexible screen; the overlap amount corresponds to the overlapping arc length of the arc slider and the arc guide rail.

5. A hinge for a portable mobile terminal as claimed in claim 4, characterized in that The first limiting structure and the second limiting structure are respectively arranged between the corresponding arc slider and the arc guide rail.

6. A hinge for a portable mobile terminal as claimed in claim 1, characterized in that The first limiting structure and the second limiting structure also allocate a proportional relationship between the overlapping length of the first virtual rotating shaft rotation connection structure and the overlapping length of the third virtual rotating shaft rotation connection structure when folded and closed.

7. A hinge for a portable mobile terminal as claimed in claim 3, characterized in that The portable mobile terminal is an inward-folding flexible screen mobile terminal. A support section is arranged on the second section, and a connection position of a flexible screen rotation support plate is arranged on the support section. When in a flattened state, the rotation axes of the first virtual rotation axis rotation connection structure and the third virtual rotation axis rotation connection structure are respectively located above the support surface of the flexible screen.

8. A hinge for a portable mobile terminal as claimed in claim 7, characterized in that The connection position is a screw hole, and the flexible screen rotation support plate is fixed on the second section.

9. A hinge for a portable mobile terminal as claimed in claim 1, characterized in that The first rotating connecting arm is rotatably connected to the intermediate fixing seat via a real shaft, and a rotation resistance torque mechanism is arranged between the real shaft and the first rotating connecting arm.

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