Folding screen hinge module for mobile phone terminals

Abstract

The present invention discloses a folding screen hinge module for a mobile phone terminal, which relates to the technical field of folding screens, and comprises a folding screen keel plate, a first door plate and a second door plate, a first rotating unit and a second rotating unit, and a synchronization unit. The folding screen keel plate is fixedly provided with a rotating shaft limiting assembly for supporting a first rotating shaft and a second rotating shaft along its longitudinal direction; the synchronization unit is arranged between the first rotating shaft and the second rotating shaft and is respectively transmitted to the first rotating unit and the second rotating unit; the first rotating unit comprises a first rotating part, the second rotating unit comprises a second rotating part, and the synchronization unit is respectively provided with arc guide parts at positions corresponding to the first arc groove and the second arc groove; the present invention does not require the use of gears for transmission and increases the effect of torque, thereby ensuring a self-locking feel.

Description

Technical Field

[0001] The present invention relates to the technical field related to folding screens, and specifically to a folding screen hinge module for a mobile phone terminal. Background Art

[0002] At present, most mobile phones or tablets can use flexible screens to achieve folding functions. The most important structure in the flexible folding display module is the hinge. The hinge of the flexible folding display module adopts a floating structure. After folding, the folding part of the flexible folding display module will produce a special water drop shape. This is to avoid the problem of damage caused by excessive folding of the flexible screen.

[0003] At the same time, in order to have a self-locking feel, the flexible screen hinge often uses a torque structure that includes two concave cams and a spring. During the opening or closing process, the protrusion of one of the concave cams first climbs to the protrusion of the other concave cam, and the spring begins to compress. The compressed spring applies pressure to the two concave cams, causing friction and torque to be generated during the rotation process. When the screen is about to open or close, the screen automatically opens or closes under the action of the spring, creating a self-locking feel.

[0004] In order to achieve the hovering of the screen at any position, the above structure generally adopts a spring with a large stiffness coefficient. Since the contact area between the concave cams is small, the concave cams are easily worn. The worn concave cams cannot produce a more obvious automatic opening or closing action when about to open or close, resulting in a gradual reduction in the self-locking feel.

[0005] In addition, the most important structure in the flexible screen hinge is the synchronization structure on both sides. That is, when folded, under the action of the synchronization structure, the screens on both sides will move synchronously, so as to ensure that the folded position forms a good water drop shape. This synchronization structure is mostly realized by synchronous gears. However, the synchronous gears achieve synchronization through meshing. This structure is prone to wear and has a short service life. In addition, this structure will use more parts, which increases the production cost of the hinge. Summary of the invention

[0006] In order to solve the defects of the prior art, the present invention provides a folding screen hinge module for a mobile phone terminal.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] The present invention provides a folding screen hinge module for a mobile phone terminal, comprising:

[0009] A folding screen keel plate, with a rotation axis limiting assembly for supporting the first rotation axis and the second rotation axis fixedly arranged along its longitudinal direction;

[0010] A first door panel and a second door panel are formed in pairs, and the first rotating unit and the second rotating unit arranged outside the first rotating shaft and the second rotating shaft realize relative rotation with the folding screen keel plate;

[0011] A synchronization unit, which is disposed between the first rotating shaft and the second rotating shaft and is respectively arranged to transmit to the first rotating unit and the second rotating unit;

[0012] The first rotating unit includes a first rotating part which is sleeved on the outside of the first rotating shaft or the second rotating shaft and has a first arc groove; the second rotating unit includes a second rotating part which is sleeved on the outside of the first rotating shaft or the second rotating shaft and has a second arc groove; the synchronization unit is provided with arc guide parts at positions corresponding to the first arc groove and the second arc groove, respectively.

[0013] As a preferred technical solution of the present invention, the first rotating unit and the second rotating unit further include a rotating plate fixedly connected to the first rotating part and the second rotating part respectively, and the rotating plate is fixedly arranged with the first door panel or the second door panel.

[0014] As a preferred technical solution of the present invention, the synchronization unit includes a transmission main board that is arranged in contact with one end surface of the folding screen keel plate and guide slide bars that are fixedly arranged on both sides of the transmission main board, and the arc guide portion is arranged on the guide slide bar;

[0015] When the first rotating unit rotates synchronously with the second rotating unit, the arc guide portion cooperates with the first arc groove and the second arc groove so that the guide slide bar can slide between the first rotating unit and the second rotating unit.

[0016] As a preferred technical solution of the present invention, at least one group of sliding protrusions is provided on the transmission main board, and the folding screen keel plate is provided with a sliding limiting portion at a position corresponding to the sliding protrusions.

[0017] As a preferred technical solution of the present invention, the sliding convex plates are provided in four groups, and the four groups of sliding convex plates are respectively arranged at the four bottom corners of the transmission main board;

[0018] A horizontal slide groove is provided on one side of the transmission main board close to the folding screen keel plate, and a horizontal guide rod is fixedly provided on the folding screen keel plate at a position corresponding to the horizontal slide groove.

[0019] As a preferred technical solution of the present invention, a friction torque generating assembly is further provided on the first rotating shaft and the second rotating shaft, which includes a fixed plate fixedly connected to the folding screen keel plate and sleeved on the first rotating shaft and the second rotating shaft, a sliding plate slidably connected to the folding screen keel plate and sleeved on the first rotating shaft and the second rotating shaft, and a compression spring provided between the sliding plate and the fixed plate;

[0020] The sliding plate is provided with sliding sleeves at positions corresponding to the first rotation axis and the second rotation axis, respectively.

[0021] As a preferred technical solution of the present invention, the sliding sleeve is provided with a plurality of groups of first concave cams along its circumferential direction, and the first rotating part is provided with a second concave cam matched with the first concave cam at one end close to the sliding sleeve.

[0022] As a preferred technical solution of the present invention, the first rotating unit and the second rotating unit are fixedly connected to the first door panel and the second door panel respectively through a fixed cover plate.

[0023] As a preferred technical solution of the present invention, at least one group of intermediate rotating components and at least one group of end rotating components are also provided on the first door panel and the second door panel, and the intermediate rotating components and the end rotating components are respectively arranged to rotate relative to the folding screen keel plate.

[0024] The beneficial effects of the present invention are:

[0025] 1. The present invention replaces the traditional use of gear transmission as a synchronous structure, and uses a first rotating unit and a second rotating unit to cooperate with a synchronous unit. The first rotating unit and the second rotating unit are respectively provided with a first arc groove and a second arc groove that cooperate with the synchronous unit. The first rotating unit and the second rotating unit on one side of the folding screen keel plate are rotated, thereby driving the guide slide bar in the synchronous unit to slide between the first arc groove and the second arc groove, wherein the guide slide bar on one side can synchronously drive the guide slide bar on the other side to slide synchronously, thereby driving the first rotating unit and the second rotating unit on the other side of the folding screen keel plate to rotate, thereby realizing the synchronous rotation of the first door panel and the second door panel on both sides of the folding screen keel plate. This structure does not require the use of gears for transmission, reduces the production cost of the hinge, and also avoids the situation where parts are prone to wear due to gear transmission, thereby increasing the service life of the hinge.

[0026] 2. In the present invention, a synchronization unit is provided to cooperate with a friction torque generating component. When the first rotating part rotates, the first concave cam on the sliding sleeve will cooperate with the second concave cam on the first rotating part. During the period when the protrusion of the second concave cam climbs to the protrusion of the first concave cam, the compression spring will be compressed and give pressure to the first concave cam. At the same time, the synchronization unit will slide frictionally on the folding screen keel plate driven by the first rotating part. Therefore, when the first rotating part rotates, in addition to the friction generated during the rotation process and the torque generated, the multi-faceted friction between the synchronization unit and the folding screen keel plate will also generate a reaction force on the first rotating part, further increasing the effect of the torque and ensuring the self-locking feel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 This is a structural schematic diagram of the flexible screen hinge module of the present invention applied to a terminal device.

[0029] Figure 2 It is a schematic diagram of the structure of the flexible screen hinge module of the present invention when it is folded.

[0030] Figure 3 It is a schematic diagram of the structure of the flexible screen hinge module of the present invention when it is opened.

[0031] Figure 4 It is a schematic diagram of the partial structure of the flexible screen hinge module of the present invention.

[0032] Figure 5 It is a schematic diagram of the structures of the first rotating unit, the second rotating unit and the synchronization unit.

[0033] Figure 6 It is a schematic diagram of the structure of the first rotating unit and the second rotating unit.

[0034] Figure 7 It is a schematic structural diagram of the first rotating unit.

[0035] Figure 8 A schematic diagram of the structure of the synchronization unit.

[0036] Fig. 9 This is a structural diagram of the synchronization unit from another perspective.

[0037] Fig.10 It is a structural schematic diagram of the folding screen keel plate and synchronization unit.

[0038] Fig.11 for Fig.10 A local enlarged schematic diagram of point A in the middle.

[0039] Fig.12 This is a schematic diagram of the structure of the first rotating unit, the second rotating unit and the synchronization unit when the flexible screen hinge module is opened.

[0040] Fig.13 This is a schematic diagram of the structure of the first rotating unit, the second rotating unit and the synchronization unit when the flexible screen hinge module is folded.

[0041] Fig.14 Schematic diagram of the structure of the friction torque generating component.

[0042] Fig.15 for Fig.14 A local enlarged schematic diagram of point B in the middle.

[0043] In the figure: 1. folding screen keel plate; 11. shaft limit assembly; 12. sliding limit part; 13. horizontal guide rod; 2. first rotating shaft; 3. second rotating shaft; 4. first door panel; 5. second door panel; 6. first rotating unit; 61. first rotating part; 611. first arc groove; 612. second concave cam; 62. rotating plate; 7. second rotating unit; 71. second rotating part; 711. second arc groove; 8. synchronization unit; 81. transmission main board; 811. sliding convex plate; 812. horizontal slide groove; 82. guide slide rod; 821. arc guide part; 9. friction torque generating assembly; 91. fixed plate; 92. sliding plate; 921. sliding sleeve; 9211. first concave cam; 93. compression spring; 100. fixed cover plate; 200. intermediate rotating assembly; 300. end rotating assembly. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention (when the flexible screen hinge module of the present invention is applied to a mobile phone) are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0045] Firstly, the terminal devices referred to in the present invention include not only mobile phones but also laptop computers, tablet computers and other terminal devices. Furthermore, the flexible screen hinge module of the present invention can be applied to any machine that connects two sets of frames or screens in an openable and closable manner.

[0046] like Figure 1 As shown, it is a schematic diagram when the terminal device is a mobile phone, which is equipped with the flexible screen hinge module of the present invention, so that the two sets of screens in the mobile phone can be opened and closed between 0° and 180°, and the flexible screens on the two sets of screens can be in a bent and folded state and unfolded into a 180° flat state.

[0047] like Figure 2-Figure 9As shown, a folding screen hinge module for a mobile phone terminal comprises a folding screen keel plate 1, a pair of first door panels 4 and second door panels 5, a first rotating unit 6 and a second rotating unit 7, and a synchronization unit 8. The folding screen keel plate 1 is fixedly provided with a rotating shaft limiting assembly 11 for supporting a first rotating shaft 2 and a second rotating shaft 3 along its longitudinal direction; the paired first door panels 4 and the second door panels 5 are rotated relative to the folding screen keel plate 1 by means of a first rotating unit 6 and a second rotating unit 7 arranged outside the first rotating shaft 2 and the second rotating shaft 3; the synchronization unit 8 is arranged between the first rotating shaft 2 and the second rotating shaft 3 and is respectively arranged to be transmitted with the first rotating unit 6 and the second rotating unit 7;

[0048] The first rotating unit 6 includes a first rotating portion 61 which is sleeved on the outside of the first rotating shaft 2 or the second rotating shaft 3 and has a first arc groove 611. The second rotating unit 7 includes a second rotating portion 71 which is sleeved on the outside of the first rotating shaft 2 or the second rotating shaft 3 and has a second arc groove 711. The synchronization unit 8 is provided with arc guide portions 821 at positions corresponding to the first arc groove 611 and the second arc groove 711.

[0049] Among them, the first rotating shaft 2 and the second rotating shaft 3 can rotate respectively inside the rotating shaft limiting assembly 11, and the setting of the rotating shaft limiting assembly 11 can prevent the first rotating shaft 2 and the second rotating shaft 3 from sliding along their axial directions when rotating. When the first rotating shaft 2 and the second rotating shaft 3 rotate, they will also synchronously drive the first rotating unit 6 and the second rotating unit 7 to rotate, and the first rotating unit 6 and the second rotating unit 7 will synchronously drive the first door panel 4 and the second door panel 5 to rotate.

[0050] Optionally, the folding screen keel panel 1, the first door panel 4 and the second door panel 5 in the present invention are all integrally formed using carbon fiber material.

[0051] Further, if Figure 5-Figure 7 As shown, the first rotating unit 6 and the second rotating unit 7 also include a rotating plate 62 fixedly connected to the first rotating part 61 and the second rotating part 71, respectively. The rotating plate 62 is fixedly arranged with the first door panel 4 or the second door panel 5. The first rotating part 61 and the second rotating part 71 are both hollow circular tubes sleeved on the first rotating shaft 2 or the second rotating shaft 3. The first rotating unit 6 and the second rotating unit 7 are respectively fixedly connected to the first door panel 4 and the second door panel 5 through the fixed cover plate 100. In this way, the first rotating unit 6 and the second rotating unit 7 can realize synchronous rotation with the first door panel 4 and the second door panel 5.

[0052] Further, if Figure 8-Figure 11As shown, the synchronization unit 8 includes a transmission main board 81 that is fitted with one end surface of the folding screen keel plate 1 and guide slide bars 82 that are fixedly arranged on both sides of the transmission main board 81, and the arc guide portion 821 is arranged on the guide slide bar 82;

[0053] When the first rotating unit 6 and the second rotating unit 7 rotate synchronously, the arc guide portion 821 cooperates with the first arc groove 611 and the second arc groove 711 to enable the guide slide bar 82 to slide between the first rotating unit 6 and the second rotating unit 7. In fact, the guide slide bar 82 and the first rotating unit 6 and the second rotating unit 7 are mutually concave and convex structures.

[0054] The guide slide bar 82 is provided with a group of arc guide parts 821 at positions corresponding to the first arc groove 611 and the second arc groove 711, respectively. During actual assembly, the first arc groove 611 and the second arc groove 711 on the first rotating part 61 and the second rotating part 71 are staggered at a certain angle in the circumferential direction, so that when the first arc groove 611 is fully matched with the arc guide part 821 at one end of the guide slide bar 82, the second arc groove 711 is just beginning to match with the arc guide part 821 at the other end of the guide slide bar 82, or when the second arc groove 711 is fully matched with the arc guide part 821 at one end of the guide slide bar 82, the first arc groove 611 is just beginning to match with the arc guide part 821 at the other end of the guide slide bar 82;

[0055] For ease of understanding, Fig.12 As shown, when the first door panel 4 and the second door panel 5 are in the open state, at this time, the first arc groove 611 is fully matched with the arc guide portion 821 at one end of the guide slide bar 82 and the second arc groove 711 is just beginning to match with the arc guide portion 821 at the other end of the guide slide bar 82. When the first door panel 4 and the second door panel 5 are in the folded state, the first rotating portion 61 and the second rotating portion 71 rotate a certain angle to make the synchronization unit 8 slide a certain distance relative to the folding screen keel plate 1. At this time, as shown in FIG. Fig.13 As shown, the second arc groove 711 is completely matched with the arc guide portion 821 at one end of the guide slide bar 82 and the first arc groove 611 is just beginning to match with the arc guide portion 821 at the other end of the guide slide bar 82.

[0056] Further, if Figure 8-Figure 11As shown, at least one group of sliding protrusions 811 is arranged on the transmission main board 81, and the folding screen keel plate 1 is provided with a sliding limit portion 12 at a position corresponding to the sliding protrusions 811. Preferably, in this embodiment, four groups of sliding protrusions 811 are provided, and the four groups of sliding protrusions 811 are respectively arranged at the four bottom corners of the transmission main board 81. Therefore, the folding screen keel plate 1 is provided with four groups of sliding limit portions 12 at positions corresponding to the four groups of sliding protrusions 811, wherein at least two surfaces between the sliding protrusions 811 and the sliding limit portions 12 are in contact with each other, namely, a side of the sliding protrusion 811 away from the folding screen keel plate 1 and a side surface corresponding to the sliding limit portion 12. Such an arrangement can make the four groups There are at least eight surfaces in the sliding convex plate 811 in total that contact the sliding limiter 12 on the folding screen keel plate 1, thereby increasing the friction between the transmission main board 81 and the folding screen keel plate 1. It can be foreseen that as the friction between the transmission main board 81 and the folding screen keel plate 1 increases, the guide slide bar 82 will apply a greater reverse force to the first rotating part 61 and the second rotating part 71, thereby ensuring the stability of the torsion, and there will be no wear between the first rotating part 61 and the sliding sleeve 921, and the worn first rotating part 61 and the sliding sleeve 921 will not be able to produce a more obvious automatic opening or closing action at the stage of opening or closing, thereby causing the self-locking feel to gradually decrease;

[0057] A horizontal slide groove 812 is provided on one side of the transmission main board 81 close to the folding screen keel plate 1, and a horizontal guide rod 13 is fixedly provided on the folding screen keel plate 1 at a position corresponding to the horizontal slide groove 812. The three surfaces provided inside the horizontal slide groove 812 are in contact with the three corresponding surfaces of the horizontal guide rod 13, which further increases the friction between the transmission main board 81 and the folding screen keel plate 1, and at the same time can ensure the stability of the transmission main board 81 sliding on the folding screen keel plate 1.

[0058] Further, if Figure 14-15 As shown, the first rotating shaft 2 and the second rotating shaft 3 are also provided with a friction torque generating assembly 9, which includes a fixed plate 91 fixedly connected to the folding screen keel plate 1 and sleeved on the first rotating shaft 2 and the second rotating shaft 3, a sliding plate 92 slidably connected to the folding screen keel plate 1 and sleeved on the first rotating shaft 2 and the second rotating shaft 3, and a compression spring 93 provided between the sliding plate 92 and the fixed plate 91;

[0059] The sliding plate 92 is provided with sliding sleeves 921 at positions corresponding to the first rotating shaft 2 and the second rotating shaft 3 , respectively. The sliding sleeves 921 can slide on the first rotating shaft 2 or the second rotating shaft 3 .

[0060] Further, if Fig.15As shown, the sliding sleeve 921 is provided with a plurality of groups of first concave cams 9211 along its circumferential direction, and the first rotating portion 61 is provided with a second concave cam 612 matched with the first concave cam 9211 at one end thereof close to the sliding sleeve 921. When the first rotating portion 61 rotates, the first concave cam 9211 on the sliding sleeve 921 will cooperate with the second concave cam 612 on the first rotating portion 61. During the period when the protrusion of the second concave cam 612 climbs to the protrusion of the first concave cam 9211, the first concave cam 9211 will be subjected to pressure and move along with the sliding sleeve 921 on the first rotating shaft 2 or the second rotating shaft 3, and at the same time, the compression spring 93 will be compressed and give pressure to the second concave cam 612 through the first concave cam 9211.

[0061] On the contrary, when the first rotating part 61 rotates in the opposite direction, the protrusion of the second concave cam 612 will gradually move to the concave part of the first concave cam 9211. At this time, the squeezed compression spring 93 will gradually reset and drive the sliding sleeve 921 to move, thereby gradually restoring the torque generated by friction during the rotation process.

[0062] Further, if Figure 3 As shown, at least one group of intermediate rotating components 200 and at least one group of end rotating components 300 are also provided on the first door panel 4 and the second door panel 5. The intermediate rotating components 200 and the end rotating components 300 are respectively arranged to rotate relative to the folding screen keel plate 1. The first door panel 4 and the second door panel 5 realize relative rotation with the keel member through the intermediate rotating components 200, the end rotating components 300, the first rotating unit 6 and the second rotating unit 7. The arrangement of the intermediate rotating components 200 and the end rotating components 300, on the one hand, enables each position on the first door panel 4 and the second door panel 5 to rotate synchronously. On the other hand, the arrangement of the intermediate rotating components 200 and the end rotating components 300 can be used to control the rotation angle range of the first door panel 4 and the second door panel 5. This is a prior art and will not be repeated here.

[0063] For example, when the first door panel 4 is rotated, the first door panel 4 will synchronously drive the first rotating unit 6, the second rotating unit 7 and the first rotating shaft 2 to rotate. Accordingly, the intermediate rotating assembly 200 and the end rotating assembly 300 will also rotate synchronously driven by the first door panel 4. Then, driven by the synchronization unit 8, the second door panel 5 on the other side of the folding screen keel plate 1 and the intermediate rotating assembly 200, the end rotating assembly 300, the first rotating unit 6 and the second rotating unit 7 on one side of the second door panel 5 will also rotate synchronously, thereby realizing the synchronous rotation of the first door panel 4 and the second door panel 5.

[0064] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A folding screen hinge module for a mobile phone terminal, characterized in that: include: A folding screen keel plate (1) is fixedly provided with a rotation axis limiting assembly (11) for supporting a first rotation axis (2) and a second rotation axis (3) along its longitudinal direction, wherein the first rotation axis (2) and the second rotation axis (3) are respectively located on two sides of the folding screen keel plate (1); A pair of first door panels (4) and second door panels (5), which are arranged outside the first rotation axis (2) and the second rotation axis (3) to achieve relative rotation with the folding screen keel plate (1), wherein the first rotation unit (6) and the second rotation unit (7) are arranged outside the first rotation axis (2), and the first rotation unit (6) and the second rotation unit (7) are also arranged outside the second rotation axis (3); A synchronization unit (8) is arranged between the first rotating shaft (2) and the second rotating shaft (3) and is respectively arranged to be in transmission with the first rotating unit (6) and the second rotating unit (7); The first rotating unit (6) outside the first rotating shaft (2) comprises a first rotating portion (61) sleeved on the outside of the first rotating shaft (2) and having a first arc groove (611); the first rotating unit (6) outside the second rotating shaft (3) comprises the first rotating portion (61) sleeved on the outside of the second rotating shaft (3); the second rotating unit (7) outside the first rotating shaft (2) comprises a second rotating portion (71) sleeved on the outside of the first rotating shaft (2) and having a second arc groove (711); the second rotating unit (7) outside the second rotating shaft (3) comprises a second rotating portion (71) sleeved on the outside of the second rotating shaft (3); and the synchronization unit (8) is provided with arc guide portions (821) at positions corresponding to the first arc groove (611) and the second arc groove (711).

2. The folding screen hinge module for a mobile phone terminal according to claim 1, characterized in that: The first rotating unit (6) and the second rotating unit (7) further comprise a rotating plate (62) fixedly connected to the first rotating part (61) and the second rotating part (71), respectively; the rotating plate (62) located outside the first rotating shaft (2) is fixedly arranged on the first door panel (4); and the rotating plate (62) located outside the second rotating shaft (3) is fixedly arranged on the second door panel (5).

3. The folding screen hinge module for a mobile phone terminal according to claim 1, characterized in that: The synchronization unit (8) comprises a transmission main board (81) arranged in contact with one end surface of the folding screen keel plate (1) and guide slide bars (82) fixedly arranged on both sides of the transmission main board (81), and the arc guide portion (821) is arranged on the guide slide bar (82); When the first rotating unit (6) and the second rotating unit (7) rotate synchronously, the circular arc guide portion (821) cooperates with the first circular arc groove (611) and the second circular arc groove (711) to enable the guide slide bar (82) to slide between the first rotating unit (6) and the second rotating unit (7).

4. The folding screen hinge module for a mobile phone terminal according to claim 3, characterized in that: At least one group of sliding convex plates (811) is provided on the transmission main board (81), and a sliding limiting portion (12) is provided on the folding screen keel plate (1) at a position corresponding to the sliding convex plates (811).

5. The folding screen hinge module for a mobile phone terminal according to claim 4, characterized in that: Four groups of sliding convex plates (811) are provided, and the four groups of sliding convex plates (811) are respectively provided at four bottom corners of the transmission main plate (81); A horizontal slide groove (812) is provided on a side of the transmission main board (81) close to the folding screen keel plate (1), and a horizontal guide rod (13) is fixedly provided on the folding screen keel plate (1) at a position corresponding to the horizontal slide groove (812).

6. The folding screen hinge module for a mobile phone terminal according to claim 4, characterized in that: The first rotating shaft (2) and the second rotating shaft (3) are also provided with a friction torque generating assembly (9), which comprises a fixed plate (91) fixedly connected to the folding screen keel plate (1) and sleeved on the first rotating shaft (2) and the second rotating shaft (3), a sliding plate (92) slidably connected to the folding screen keel plate (1) and sleeved on the first rotating shaft (2) and the second rotating shaft (3), and a compression spring (93) provided between the sliding plate (92) and the fixed plate (91); The sliding plate (92) is provided with sliding sleeves (921) at positions corresponding to the first rotating shaft (2) and the second rotating shaft (3).

7. The folding screen hinge module for a mobile phone terminal according to claim 6, characterized in that: The sliding sleeve (921) is provided with a plurality of groups of first concave cams (9211) along its circumferential direction, and one end of the first rotating part (61) close to the sliding sleeve (921) is provided with a second concave cam (612) that matches the first concave cam (9211).

8. The folding screen hinge module for a mobile phone terminal according to claim 1, characterized in that: The first rotating unit (6) and the second rotating unit (7) are respectively fixedly connected to the first door panel (4) and the second door panel (5) via a fixed cover plate (100).

9. The folding screen hinge module for a mobile phone terminal according to claim 1, characterized in that: At least one set of intermediate rotating components (200) and at least one set of end rotating components (300) are also provided on the first door panel (4) and the second door panel (5), and the intermediate rotating components (200) and the end rotating components (300) are respectively arranged to rotate relative to the folding screen keel plate (1).

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