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CN-122014737-A - Rotating shaft mechanism and display terminal

CN122014737ACN 122014737 ACN122014737 ACN 122014737ACN-122014737-A

Abstract

The embodiment of the application provides a rotating shaft mechanism and a display terminal, relates to the technical field of folding display, and is used for relieving the problem that a display screen is extruded at a folding position in the folding process of the folding display terminal. The rotating shaft mechanism comprises a main shaft (200), a first fixing frame (211), a second fixing frame, a first rotating arm and a second rotating arm. The first fixing frame (211) and the second fixing frame are respectively positioned at two sides of the main shaft (200). In addition, the rotation center of the first rotation part of the first rotation arm is arranged in a dislocation manner with the axis of the first rotation part. The rotation center of the second rotation part of the second rotation arm is arranged in a dislocation way with the axis of the second rotation part. The first interval H1 between the rotation centers of the first rotation part and the second rotation part is larger than the second interval between the axle center of the first rotation part and the axle center of the second rotation part. The first and second rotating arms may form a larger space for accommodating the folded portion of the display screen.

Inventors

  • WU WEIFENG
  • ZHONG DING
  • CHEN WENLU
  • HU YUEHUA
  • ZHAN QIANG

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260512
Application Date
20241217

Claims (16)

  1. 1.A spindle mechanism (20), characterized by comprising: a main shaft (200) extending in a first direction (Y); A first holder (211); the first fixing frame (211) and the second fixing frame (212) are respectively positioned at two sides of the main shaft (200) along a second direction (X), and the second direction (X) is perpendicular to the first direction (Y); The first rotating arm (201) comprises a first rotating part (2011) and a first extension part (2012) which are connected, wherein the first extension part (2012) is in transmission connection with the first fixing frame (211), the first rotating part (2011) is in rotation connection with the main shaft (200), and the rotating center of the first rotating part (2011) and the axle center of the first rotating part (2011) are arranged in a staggered mode; The first rotating arm (201) and the second rotating arm (202) are respectively positioned at two sides of the main shaft (200) along the second direction (X), the second rotating arm (202) comprises a second rotating part (2021) and a second extension part (2022) which are connected, the second rotating part (2021) is in transmission connection with the first rotating part (2011), the second extension part (2022) is in transmission connection with the second fixing frame (212), the second rotating part (2021) is in rotation connection with the main shaft (200), and the rotating center of the second rotating part (2021) and the axle center of the second rotating part (2021) are arranged in a dislocation manner; A first distance H1 is arranged between the rotation center of the first rotation part (2011) and the rotation center of the second rotation part (2021), a second distance H2 is arranged between the axis of the first rotation part (2011) and the axis of the second rotation part (2021), and H1 is larger than H2.
  2. 2. The spindle mechanism (20) according to claim 1, wherein, The first rotating part (2011) is provided with a first cam surface (C1), the first cam surface (C1) is provided with at least one first bulge (51), the first cam surface (C1) is provided with a first area (701) and a second area (702), the wall thickness of the first rotating part (2011) positioned in the first area (701) is larger than the wall thickness of the first rotating part (2011) positioned in the second area (702), and the first bulge (51) is positioned in the first area (701); the spindle mechanism (20) further includes: The first damping member (221) is arranged in the main shaft (200), a second cam surface (C2) is arranged on one side, facing the first rotating part (2011), of the first damping member (221), at least one second protrusion (52) is arranged on the second cam surface (C2), the second cam surface (C2) is matched with the first cam surface (C1) in shape, the at least one second protrusion (52) is used for being abutted with the at least one first protrusion (51), and one side, facing away from the first rotating arm (201), of the first damping member (221) is elastically connected with the main shaft (200).
  3. 3. The spindle mechanism (20) according to claim 2, wherein, Any one of the first protrusion (51) and the second protrusion (52) includes a top surface, and side inclined surfaces located on both sides of the top surface; The side inclined surface of the first bulge (51) is abutted with the side inclined surface of the second bulge (52) when the rotating shaft mechanism (20) is in a complete flattening state and a complete closing state, and the first cam surface (C1) is meshed with the second cam surface (C2); the rotating shaft mechanism (20) is hovered in a state between the completely flattened state and the completely closed state, and the top surface of the first protrusion (51) is abutted with the top surface of the second protrusion (52).
  4. 4. A spindle mechanism (20) according to claim 2 or 3, characterized in that, The second rotating part (2021) is provided with a third cam surface (C3), the third cam surface (C3) is provided with at least one third bulge (53), the third cam surface (C3) is provided with a third area (703) and a fourth area (704), the wall thickness of the second rotating part (2021) in the third area (703) is larger than the wall thickness of the second rotating part (2021) in the fourth area (704), and the third bulge (53) in the third area (703); The side of the first damping piece (221) facing the second rotating part (2021) is provided with a fourth cam surface (C4), the fourth cam surface (C4) is provided with at least one fourth bulge (54), the fourth cam surface (C4) is matched with the shape of the third cam surface (C3), and the at least one fourth bulge (54) is used for abutting against the at least one third bulge (53).
  5. 5. The spindle mechanism (20) according to any one of claims 2-4, wherein, A side of the first rotation part (2011) facing the second rotation part (2021) is provided with a first gear surface (S1); A second gear surface (S2) is formed on the side of the second rotating part (2021) facing the first rotating part (2011); the spindle mechanism (20) further includes: A first gear (21) located between the first rotary part (2011) and the second rotary part (2021), the first gear (21) being meshed with the first gear surface (S1); The second gear (22) is positioned between the first rotating part (2011) and the second rotating part (2021), the second gear (22) is meshed with the second gear surface (S2), and the first gear (21) is in transmission connection with the second gear (22).
  6. 6. The spindle mechanism (20) according to claim 5, wherein the spindle mechanism (20) further comprises at least one resilient member (60), the at least one resilient member (60) comprising: A first elastic member (601) disposed in the main shaft (200) along the first direction (Y), the first elastic member (601) being connected to the first damper (221), the axis of the first elastic member (601) being coincident with the rotation center of the first rotation part (2011); A second elastic member (602) disposed in the spindle (200) along the first direction (Y), the second elastic member (602) being connected to the first damper (221), the second elastic member (602) having an axis coincident with the rotation center of the second rotation section (2021); The device comprises a main shaft (200), at least one middle elastic piece (610) arranged in the main shaft (200) along the first direction (Y) and positioned between the first elastic piece (601) and the second elastic piece (602), wherein the middle elastic piece is connected with the first damping piece (221), and the axle center of any middle elastic piece is arranged in a staggered mode with the rotation centers of the first gear (21) and the second gear (22).
  7. 7. The spindle mechanism (20) of claim 6, wherein the spindle mechanism (20) further comprises: A first connecting shaft (31) penetrating the first rotating part (2011) and the first elastic member (601) along the first direction (Y), wherein the first connecting shaft (31) is connected with the main shaft (200), and the first rotating arm (201) is rotatably connected with the main shaft (200) through the first connecting shaft (31); The second rotating part (2021) and the second elastic piece (602) are arranged along the first direction (Y) in a penetrating way, the second connecting shaft (32) is connected with the main shaft (200), and the second rotating arm (202) is connected with the main shaft (200) in a rotating way through the second connecting shaft (32).
  8. 8. The spindle mechanism (20) according to claim 6 or 7, wherein the at least one intermediate resilient member (610) comprises: the axle center of the first middle elastic piece (603) is arranged in a dislocation mode with the rotation center of the first gear (21); and the axle center of the second middle elastic piece (604) is arranged in a dislocation manner with the rotation center of the second gear (22).
  9. 9. The spindle mechanism (20) of claim 8, wherein the spindle mechanism (20) further comprises: the first gear (21) rotates around the third connecting shaft (33), and the third connecting shaft (33) is connected with the first damping piece (221); the second gear (22) rotates around the fourth connecting shaft (34), and the fourth connecting shaft (34) is connected with the first damping piece (221); A fifth connecting shaft (35) penetrating the first intermediate elastic member (603) in the first direction (Y), the fifth connecting shaft (35) being connected to the first damper (221); A sixth connecting shaft (36) penetrating the second intermediate elastic member (604) in the first direction (Y), the sixth connecting shaft (36) being connected to the first damper (221); Wherein the axis of the third connecting shaft (33) and the axis of the fourth connecting shaft (34) are located between the axis of the fifth connecting shaft (35) and the axis of the sixth connecting shaft (36).
  10. 10. The spindle mechanism (20) according to claim 5, wherein the spindle mechanism (20) further comprises at least one resilient member (60), the at least one resilient member (60) comprising: The first elastic piece (601) is arranged in the main shaft (200) along the first direction (Y), and the first elastic piece (601) is connected with the first damping piece (221); The second elastic piece (602) is arranged in the main shaft (200) along the first direction (Y), and the second elastic piece (602) is connected with the first damping piece (221), wherein the axle center of the second elastic piece (602) and the rotation center of the second rotation part (2021) are arranged in a dislocation manner; At least one intermediate elastic member (610) is disposed in the spindle (200) along the first direction (Y) and between the first elastic member (601) and the second elastic member (602), the intermediate elastic member is connected to the first damping member (221), and the axis of one intermediate elastic member coincides with the rotation center of the first gear (21) or the second gear (22).
  11. 11. The spindle mechanism (20) according to any one of claims 2-10, wherein the spindle mechanism (20) further comprises: The third rotating arm (203) comprises a third rotating part (2031) and a third extending part (2032) which are connected, wherein the third extending part (2032) is in transmission connection with the first fixing frame (211), the third rotating part (2031) is in rotating connection with the main shaft (200), the rotating center of the third rotating part (2031) is overlapped with the rotating center of the first rotating part (2011), and the axle center of the third rotating part (2031) is overlapped with the axle center of the first rotating part (2011); The device comprises a main shaft (200), a first rotating arm (204), a second rotating arm (204), a fourth extending part (2042), a fourth rotating part (2042) and a fourth rotating part (2041), wherein the first rotating arm (203) and the fourth rotating arm (204) are respectively positioned on two sides of the main shaft (200) along the first direction (X), the first rotating arm (203) and the second rotating arm (204) are in transmission connection, the fourth rotating arm (204) comprises a fourth rotating part (2041) and a fourth extending part (2042) which are connected, the fourth extending part (2042) is in transmission connection with a second fixing frame (212), the fourth rotating part (2041) is in rotation connection with the main shaft (200), the rotation center of the fourth rotating part (2041) is overlapped with the rotation center of the second rotating part (2021), and the axis of the fourth rotating part (2041) is overlapped with the axis of the second rotating part (2021).
  12. 12. The spindle mechanism (20) of claim 11, wherein, The third rotating part (2031) is provided with a fifth cam surface (C5), the fifth cam surface (C5) is provided with at least one fifth bulge (55), the fifth cam surface (C5) is provided with a fifth area (705) and a sixth area (706), the wall thickness of the third rotating part (2031) positioned in the fifth area (705) is larger than the wall thickness of the third rotating part (2031) positioned in the sixth area (706), and the fifth bulge (55) is positioned in the fifth area (705); the spindle mechanism (20) further includes: A second damper (222) disposed in the spindle (200), wherein a sixth cam surface (C6) is provided on a side of the second damper (222) facing the third rotating portion (2031), the sixth cam surface (C6) has at least one sixth protrusion (56), the sixth cam surface (C6) matches the shape of the fifth cam surface (C5), and the at least one fifth protrusion (55) is configured to abut against the at least one sixth protrusion (56); And at least one elastic member (60), wherein both ends of the elastic member are connected with the first damping member (221) and the second damping member (222).
  13. 13. The spindle mechanism (20) of claim 12, wherein, The fourth rotating part (2041) is provided with a seventh cam surface (C7), the seventh cam surface (C7) is provided with at least one seventh bulge (57), the seventh cam surface (C7) is provided with a seventh area (707) and an eighth area (708), the wall thickness of the fourth rotating part (2041) positioned in the seventh area (707) is larger than the wall thickness of the fourth rotating part (2041) positioned in the eighth area (708), and the seventh bulge (57) is positioned in the seventh area (707); The side of the second damping piece (222) facing the fourth rotating part (2041) is provided with an eighth cam surface (C8), the eighth cam surface (C8) is provided with at least one eighth bulge (58), the eighth cam surface (C8) is matched with the shape of the seventh cam surface (C7), and the at least one seventh bulge (57) is used for abutting against the at least one eighth bulge (58).
  14. 14. The spindle mechanism (20) of claim 13, wherein, The third rotating part (2031) is provided with a ninth cam surface (C9), the ninth cam surface (C9) is provided with at least one ninth bulge (59), the ninth cam surface (C9) is provided with a ninth area (709) and a tenth area (710), the wall thickness of the third rotating part (2031) positioned in the ninth area (709) is larger than the wall thickness of the third rotating part (2031) positioned in the tenth area (710), and the ninth bulge (59) is positioned in the ninth area (709); The fourth rotating part (2041) is provided with a tenth cam surface (C10), the tenth cam surface (C10) is provided with at least one tenth bulge (510), the tenth cam surface (C10) is provided with an eleventh area (711) and a twelfth area (712), the wall thickness of the fourth rotating part (2041) in the eleventh area (711) is larger than the wall thickness of the fourth rotating part (2041) in the twelfth area (712), and the tenth bulge (510) is in the eleventh area (711); The rotating shaft mechanism (20) further comprises a stop piece (230), wherein the stop piece (230) is positioned in the main shaft (200) and is connected with the main shaft (200), the stop piece (230) is arranged on one side of the third rotating arm (203) and the fourth rotating arm (204) which are away from the second damping piece (222), and the stop piece (230) is provided with an eleventh cam surface (C11) and a twelfth cam surface (C12); Wherein the eleventh cam surface (C11) has at least one eleventh protrusion (511), the eleventh cam surface (C11) matching the shape of the ninth cam surface (C9), the at least one eleventh protrusion (511) being adapted to abut the at least one ninth protrusion (59); The twelfth cam surface (C12) is provided with at least one twelfth bulge (512), the twelfth cam surface (C12) is matched with the shape of the tenth cam surface (C10), and the at least one twelfth bulge (512) is used for abutting against the at least one tenth bulge (510).
  15. 15. The spindle mechanism (20) according to any one of claims 1-14, wherein, The first extension part (2012) is in sliding connection with the first fixing frame (211); The second extension part (2022) is slidably connected with the first fixing frame (211).
  16. 16. A display terminal (01), characterized by comprising: A display screen (10); a first housing (11); a second housing (12); The spindle mechanism (20) according to any one of claims 1 to 15, wherein the spindle mechanism (20) is located between the first housing (11) and the second housing (12), wherein the display screen (10) is connected to the first housing (11) and the second housing (12), and wherein the display screen (10) covers the spindle mechanism (20).

Description

Rotating shaft mechanism and display terminal Technical Field The application relates to the technical field of folding display, in particular to a rotating shaft mechanism and a display terminal. Background Along with the continuous development of display technology, a folding display terminal gradually becomes a development trend of future mobile electronic products. Under the flattening state, the folding display terminal can obtain a larger display area, and the film watching effect is improved. The folding display terminal can obtain smaller volume under the folding state, and is convenient for users to carry. However, in the folding process of the folding display terminal, the display screen is squeezed at the folding position, and the service life and reliability of the display screen are reduced. Disclosure of Invention The application provides a rotating shaft mechanism and a display terminal, which are used for relieving the problem that a display screen is extruded at a folding position in the folding process of a folding display terminal. In order to achieve the above purpose, the application adopts the following technical scheme: In one aspect of the present application, a spindle mechanism is provided, including a spindle, a first fixing frame, a second fixing frame, a first rotating arm, and a second rotating arm. The spindle extends in a first direction. Along the second direction, the first fixing frame and the second fixing frame are respectively positioned at two sides of the main shaft, and the second direction is perpendicular to the first direction. Further, the first rotating arm includes a first rotating portion and a first extending portion connected. The first extension part is in transmission connection with the first fixing frame. The first rotating part is rotationally connected with the main shaft, and the rotating center of the first rotating part and the axle center of the first rotating part are arranged in a staggered mode. Along the second direction, the first rotating arm and the second rotating arm are respectively positioned at two sides of the main shaft and are in transmission connection. The second rotating arm comprises a second rotating part and a second extending part which are connected. The second rotating part is rotationally connected with the main shaft, and the rotating center of the second rotating part and the axle center of the second rotating part are arranged in a staggered mode. The first space H1 is arranged between the rotation center of the first rotation part and the rotation center of the second rotation part, and the second space H2 is arranged between the axle center of the first rotation part and the axle center of the second rotation part, wherein H1 is larger than H2. In this case, since the first rotating portion and the second rotating portion are respectively connected to the spindle in a rotating manner, and the first rotating portion and the second rotating portion are connected in a transmitting manner, the second rotating portion can be driven to rotate relative to the spindle when the first rotating portion rotates relative to the spindle. In addition, the first extension portion is in transmission connection with the first fixing frame, and the second extension portion is in transmission connection with the second fixing frame. Therefore, in the process that the first rotating part and the second rotating part respectively rotate relative to the main shaft, the first extension part can drive the first fixing frame, and the second extension part can drive the second fixing frame to rotate relative to the rotating shaft, so that the folding and flattening of the rotating shaft mechanism are realized. In addition, the rotation center of the first rotation part and the axis of the first rotation part are arranged in a dislocation mode, the rotation center of the second rotation part and the axis of the second rotation part are arranged in a dislocation mode, and a first interval H1 is reserved between the rotation center of the first rotation part and the rotation center of the second rotation part. The second interval H2, H1> H2 is arranged between the axle center of the first rotating part and the axle center of the second rotating part. Thus, when the rotation shaft mechanism is in the closed state, the rotation center of the first rotation portion faces outward (i.e., the side away from the second rotation portion), and the shaft center of the first rotation portion faces inward (i.e., the side close to the second rotation portion). Similarly, the rotation center of the second rotating portion faces outward (i.e., the side far from the first rotating portion), and the axis of the second rotating portion faces inward (i.e., the side near the first rotating portion), so that the first rotating portion and the second rotating portion are both eccentrically disposed rotating members. Based on this, for the scheme that neither of the two