CN213601524U - Winding device and electronic equipment - Google Patents

Abstract

The utility model discloses a take-up device and electronic equipment, include: the supporting seat comprises a base and a supporting shaft arranged on the base; the scroll is rotatably sleeved on the supporting shaft, one end of the flexible screen is connected to the scroll, and the other end of the flexible screen forms a free end; the coil spring is sleeved on the supporting shaft, the outer spring end of the coil spring is connected with the reel, and the inner spring end of the coil spring is connected with the supporting shaft; the reel is provided with a pre-tightening locking arm at one end close to the supporting seat, and the pre-tightening locking arm is detachably connected with the base through a locking connecting piece. The application provides a coiling device and electronic equipment, simple structure holds power through carrying out the pretension to the coil spring for the coil spring has the power that keeps elasticity recovery, has promoted user's use and has experienced, has also improved electronic equipment's practicality.

Description

Winding device and electronic equipment

Technical Field

The present disclosure relates to electronic display technologies, and particularly to a winding device and an electronic apparatus.

Background

With the progress of science and technology and the development of society, the flexible screen gradually enters the field of vision of the public, and the flexible screen is paid much attention to people due to the low power consumption and the bendable characteristic. The bendable and crimpable flexible screen brings brand new user experience to consumers while facilitating the life of the consumers.

The flexible screen refers to a display technology of a soft screen, and compared with a traditional display screen, the flexible screen can be bent or even folded like paper. The flexible screen is flexible because it employs an OLED (organic light-emitting diode) display technology.

The flexible screen is used as a high and new technology display screen, and at present, small-size flexible screen display equipment capable of automatically unfolding and rolling is available; one end of the flexible screen is fixed to the reel, and the other end serves as a free end to wind the flexible screen on the reel through the reel, which can reduce the size of the entire display apparatus.

However, when the flexible screen can be curled in the life in the prior practical application, the flexible screen can not be completely stored on the scroll due to the force of the coil spring which can not keep the elastic recovery when the flexible screen is rolled up by the coil spring, so that the use experience of a user is reduced, and the practicability of the electronic equipment is also reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough among the prior art, this application provides a take-up device and electronic equipment, simple structure holds power through carrying out the pretension to the coil spring for the coil spring has the power that keeps elasticity recovery, and flexible screen of rolling that can be convenient, swift has promoted user's use and has experienced, has also improved electronic equipment's practicality.

The utility model discloses a following technical scheme realizes:

in a first aspect, the present application provides a winding device comprising: the supporting seat comprises a base and a supporting shaft arranged on the base; the scroll is rotatably sleeved on the supporting shaft, one end of the flexible screen is connected to the scroll, and the other end of the flexible screen forms a free end; the coil spring is sleeved on the supporting shaft, the outer spring end of the coil spring is connected with the reel, and the inner spring end of the coil spring is connected with the supporting shaft; when the free end is far away from the winding shaft, the coil spring has a first state of winding tightly on the supporting shaft; when the free end is close to the reel, the coil spring has a second state of relaxation when wound on the supporting shaft, and the flexible screen is wound on the reel;

the reel is provided with a pre-tightening locking arm at one end close to the supporting seat, and the pre-tightening locking arm is detachably connected with the base through a locking connecting piece.

The winding device provided by the application comprises a supporting seat, a scroll and a coil spring; the supporting seat comprises a base and a supporting shaft fixedly arranged on the base, and can be used for supporting and fixing a scroll, the scroll is rotatably sleeved on the supporting shaft and rotates relative to the supporting shaft to wind the flexible screen, one end of the flexible screen is fixedly connected to the scroll, and the other end of the flexible screen forms a free end; the coil spring can be used as a power mechanism of a scroll for winding the flexible screen and is sleeved on the supporting shaft; in order to facilitate the flexible screen to be wound on the scroll, the outer spring end of the coil spring is fixedly connected with the scroll, and the inner spring end is fixedly connected with the supporting shaft; when the free end of the flexible screen is far away from the scroll, the coil spring has a first state of winding on the support shaft to wind tightly to store force, namely the scroll can be driven to rotate in the process of unfolding the flexible screen; when the free end of the flexible screen is close to the scroll, the coil spring has a second state of relaxation when the coil spring is wound on the supporting shaft, and the flexible screen is wound on the scroll, namely the coil spring after power storage can generate reverse winding torque to drive the scroll to rotate, so that the flexible screen can be wound on the scroll. Meanwhile, in order to wind and store the force of the coil spring, one end of the reel close to the supporting seat is provided with a pre-tightening locking arm, and the pre-tightening locking arm is detachably connected with the base through a locking connecting piece; the pre-tightening locking arm and the base are fixed through the locking connecting piece, and then the coil spring is subjected to power storage locking, so that the coil spring has a force for keeping elastic recovery in a second diastolic state.

According to the winding device, the winding shaft is rotatably sleeved on the supporting shaft, and the coil spring capable of providing winding power is arranged, wherein the outer spring end of the coil spring is fixedly connected with the winding shaft, the inner spring end of the coil spring is fixedly connected with the supporting shaft, and the winding shaft is driven to rotate when the free end of the flexible screen is far away from the winding shaft, so that the coil spring is driven to wind tightly to store force; when the free end of the flexible screen is close to the scroll, the coil spring after storing force can provide rotary driving force for the scroll, so that the flexible screen can be conveniently and rapidly wound on the scroll automatically, and the flexible screen can be accommodated. In order to wind and store the coil spring tightly, one end of the winding shaft close to the supporting seat is provided with a pre-tightening locking arm, the pre-tightening locking arm and the base are fixed through a locking connecting piece, and then the coil spring is stored and locked, so that the coil spring has the force of keeping elastic recovery in the second state of relaxation. This take-up device simple structure, convenient operation holds power through carrying out the pretension to the wind spring for the wind spring has the power that keeps elastic recovery, and flexible screen of rolling that can be convenient, swift has promoted user's use and has experienced, has also improved electronic equipment's practicality. Simultaneously, the winding device of this application establishes to stand-type, compares traditional horizontal winding device, and the left and right sides of flexible screen is expanded, the rolling more accords with people's visual angle effect.

In a possible design, a locking through hole is formed in the pre-tightening locking arm, a locking mounting hole is formed in the position, corresponding to the locking through hole, of the base, and a locking connecting piece penetrates through the locking through hole and the locking mounting hole and then fixes the reel on the base so as to perform force accumulation locking on the coil spring.

The pre-tightening locking arm is provided with a locking through hole, the base is provided with a locking mounting hole at a position corresponding to the locking through hole, the locking connecting piece penetrates through the locking through hole and the locking mounting hole to fix the reel on the base, and then the force storage locking is carried out on the coil spring, so that the coil spring has the force for keeping the elastic recovery when in the second state of relaxation.

In one possible design, the winding shaft comprises a coil spring fixing box, the coil spring fixing box is rotatably sleeved on the supporting shaft, the coil spring is accommodated in the coil spring fixing box, and the outer spring end is fixed on the inner side wall of the coil spring fixing box.

In one possible embodiment, the pretensioning locking arm is fixedly arranged on a circumferential wall of the coil spring fixing box, and the coil spring fixing box is fixed on the base through the pretensioning locking arm, so that pretensioning locking of the coil spring is realized.

In one possible design, an installation groove is formed on the inner wall surface of the coil spring fixing box, a positioning block is fixedly arranged in the installation groove, a gap is formed between the positioning block and the groove wall of the installation groove, and the end of the outer spring penetrates through the gap and is fixedly connected to the positioning block.

Through setting up the mounting groove and set up the locating piece in the mounting groove, the locating piece with form the clearance between the cell wall of mounting groove, the outer spring end pass the clearance rigid coupling in on the locating piece, can make the outer spring end more firm be fixed in on the inside wall of coil spring fixing box, prevent the emergence of outer spring end unhook condition.

In a possible design, the support shaft is provided with a first through hole, and an inner spring end of the coil spring is bent after passing through the first through hole so as to fix the inner spring end on the support shaft.

In the application, the inner spring end is fixed on the supporting shaft, and when the reel rotates, the coil spring can be wound on the supporting shaft to perform winding and storing force.

In a possible design, the coil spring fixing box comprises a coil spring cover plate, a second through hole is formed in the coil spring cover plate, and the coil spring cover plate is rotatably sleeved on the supporting shaft through the second through hole and is detachably mounted on the peripheral wall.

This application is in detachable installation coil spring apron on the perisporium of the fixed box of coil spring can hold the coil spring in the fixed box of coil spring to can prevent to be located the coil spring that the fixed box of coil spring was popped out and is dispersed, improve the practicality of the fixed box of coil spring.

In a possible design, a first fixing arm is arranged on the peripheral wall, a second fixing arm is correspondingly arranged at the bottom of the winding shaft, and the second fixing arm is fixedly connected with the first fixing arm through a connecting piece.

Through the fixed connection between first fixed arm and the second fixed arm, can realize the fixed connection of coil spring fixation box and spool, both form integrative rotator, rotate around the support shaft. Meanwhile, the coil spring fixing box can restrain the rotation motion of the reel, and the rotation stability of the reel is improved.

Alternatively, the connecting member may be any one of a bolt, a screw, a pin, a screw, and the like, which is not limited in this application.

In one possible design, the inner wall surface of the positioning block and the inner wall surface of the coil spring fixing box are both arc-shaped and located on the same circumference.

Specifically, the inner wall surfaces of the positioning block and the coil spring fixing box are both arc-shaped and located on the same circumference, so that the circumferential integrity of the coil spring in a winding mode can not be damaged by the outer spring end of the coil spring, the coil spring can still perform circumferential winding along the inner side wall of the coil spring fixing box, the coil spring is enabled to wind smoothly, and the output winding force is uniform.

In one possible design, the winding device further includes a rotary positioning member including a positioning sleeve rotatably disposed within the spool.

Specifically, the spool is hollow structure, and its inside is fixed to be provided with spacing arch, and the location axle sleeve is fixed to be cup jointed on the back shaft, spacing arch be located the spool with between the location axle sleeve, spacing arch with the location axle sleeve cooperatees to carry on spacingly to the rotation of spool.

This application sets up the fixed box of wind spring through the bottom at the spool, sets up the cooperation of rotatory setting element at the top of spool and forms two upper and lower rotatory support wheel hub, can retrain the rotation of spool, has restricted the spool to the top and \ or the position deviation of bottom direction at rotatory in-process to reduce the rotatory resistance of spool, very big promotion the rotatory stability of spool.

On the other hand, the present application further provides an electronic device, including the winding device and the flexible screen of any one of the foregoing first aspects, one end of the flexible screen is fixedly connected to the peripheral wall of the winding shaft, and the other end of the flexible screen can be wound on the winding shaft.

Drawings

Fig. 1 is a schematic view of the overall structure of a winding device provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of a coil spring provided in an embodiment of the present application;

FIG. 3 is a top view of a coil spring provided in an embodiment of the present application;

FIG. 4 is an exploded view of a winding device provided in an embodiment of the present application;

FIG. 5 is a top view of a winding device provided in an embodiment of the present application;

FIG. 6 is a schematic structural view of a coil spring retention cartridge provided in an embodiment of the present application;

FIG. 7 is a cross-sectional view of a winding device provided in an embodiment of the present application;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

FIG. 9 is an enlarged view of a portion of FIG. 7 at B;

fig. 10 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.

Reference numerals: 10. a supporting seat; 11. a base; 12. a support shaft; 13. locking the mounting hole; 14. screw holes; 20. a reel; 21. a flexible screen; 22. a second fixed arm; 23. a limiting bulge; 24. a first flange; 25. a second flange; 26. positioning a step; 30. a coil spring; 31. an outer spring end; 31. an inner spring end; 40. a coil spring fixing box; 41. pre-tightening the locking arm; 42. mounting grooves; 43. positioning blocks; 44. a coil spring cover plate; 45. a first fixed arm; 46. a peripheral wall; 50. rotating the positioning member; 51. positioning the shaft sleeve; 52. a spool cover plate; 53. closing the plate; 60. an adjusting screw; 121. a first through hole; 231. a limiting hole; 441. a second through hole; 442. and (4) a bump.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

It should be noted that the same reference numerals are used to denote the same components or parts in the embodiments of the present application, and for the same parts in the embodiments of the present application, only one of the parts or parts may be given the reference numeral, and it should be understood that the reference numerals are also applicable to the other same parts or parts.

In the description of the present application, it is to be noted that unless otherwise explicitly fixed connection, it may also be detachable connection, or integrally connected; where stated and defined, the terms "mounted" and "connected" are to be construed broadly, e.g., as meaning mechanically coupled, electrically coupled, or in communication with one another; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it is to be understood that the terms "upper", "lower", "side", "inner", "outer", and the like indicate orientations or positional relationships based on installation, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone.

In a first aspect, the present application first provides a winding device, which may be applied to an electronic device, and is used to wind a flexible display screen or a display, so as to reduce an occupied space of the electronic device and improve portability of the electronic device, where the electronic device may be an electronic device such as a smart phone, a television, and a tablet computer. In addition, the winding device can also be widely applied to curtains or other components or appliances needing to be stored, and the application is not limited to the above.

For example, in order to reduce the occupied space of the display device and facilitate the storage of the display device, a flexible display screen or a flexible display made of organic light-emitting diodes (OLEDs) is generally adopted, and since the flexible display screen or the flexible display screen can be curled and bent, the display screen or the flexible display screen is high in interestingness and can be wound on a winding device, so that the occupied space of the display screen or the display screen is reduced, and the flexible display screen can be widely applied as a high-tech display screen technology.

Fig. 1 is a schematic view of the overall structure of a winding device provided in an embodiment of the present application. Fig. 2 is a schematic structural view of a coil spring provided in an embodiment of the present application.

As shown in fig. 1 and 2, the winding device of the present application includes a support base 10, a reel 20, and a coil spring 30.

The supporting seat 10 includes a base 11 and a supporting shaft 12 fixedly disposed on the base 11, and the supporting seat 10 can support and fix the reel 20.

Here, the base 11 may be a convex structure formed in a step shape to facilitate the installation between the support base 10 and other components, and may also be a rectangular or trapezoidal structure, and the shape of the base 11 is not limited in the present application.

And the reel 20 is rotatably sleeved on the support shaft 12, and the reel 20 can rotate relative to the support shaft 12 and can be used for winding the flexible screen in the rotating process. The roller 20 is fixedly connected to one end of the flexible screen, the other end of the flexible screen forming a free end.

In the embodiment of the present application, the winding shaft 20 may be a hollow cylinder, and the coil spring 30 is disposed inside the winding shaft 20, so that the rotation of the winding shaft 20 is controlled by the change of the elastic potential energy of the coil spring 30, and the flexible screen may be wound.

In the application, in order to ensure that the flexible screen has higher strength in the movement process of pulling and/or winding the scroll 20, the scroll 20 and/or the support shaft 12 can be made of hard materials such as stainless steel and alloy steel, so that the scroll 20 and/or the support shaft 12 are not easy to deform under the action of force, and sufficient support force can be provided.

It will be appreciated that the diameter or radius of the roller 20 may be determined according to the minimum radius the flexible screen can be wound around. For example, the radius of the roller 20 may be set to be equal to or slightly larger than the minimum radius around which the flexible screen can be wound. Thus, when the flexible screen is wound, the flexible screen can be ensured to be completely attached to the peripheral wall of the scroll 20, namely, the scroll 20 can be ensured to always provide enough support for the flexible screen, so that the flexible screen is effectively protected.

As a specific example, the radius of the reel 20 may be set to 20 mm, for example.

In an embodiment of the present application, the reel 20 may be fixedly connected to one end of the flexible screen by a fixing member. In other embodiments, the flexible screen 21 may also be bonded to the spool 20 by an adhesive, such as a double-sided tape. The present application is not limited to how the spool 20 is fixedly attached to one end of the flexible screen.

In addition, when coiling the flexible screen, for convenience, swift realization is convoluteed, the perisporium of spool 20 can be established to smooth surface or the smooth surface through polishing and polishing, at the in-process that the flexible screen was convoluteed like this, can make the flexible screen can more smoothly convolute on spool 20, the efficiency that the flexible screen was convoluteed has been improved, also can avoid tiny bur to the fish tail of flexible screen, can provide better guard action to the flexible screen, fine having avoided the perisporium of spool 20 to have the bur to cause the condition of destruction to the flexible screen to take place.

Fig. 3 is a top view of a coil spring provided in an embodiment of the present application.

As shown in fig. 2 and 3, the coil spring 30 is sleeved on the supporting shaft 12 and can be used as a driving mechanism for the reel 20 to wind the flexible screen. To accomplish the winding of the flexible screen onto the spool 20, the outer spring end 31 of the coil spring 30 is fixedly connected to the spool 20 and the inner spring end 32 of the coil spring 30 is fixedly connected to the support shaft 12.

Alternatively, as shown in fig. 2 and 3, the supporting shaft 12 is provided with a first through hole 121, and the inner spring end 32 of the coil spring 30 is bent after passing through the first through hole 121, so as to fix the inner spring end 32 on the supporting shaft 12.

The present application is not limited as to how the inner spring end 32 of the coil spring 30 is bent after passing through the first through hole 121. For example, the innerspring end 32 may be bent clockwise or counterclockwise, etc. along the support shaft 12 after passing through the first through-hole 121.

When the free end of the flexible screen is away from the reel 20, the coil spring 30 has a first state of winding tightly on the support shaft 12; namely, the flexible screen drives the scroll 20 to rotate, so that the coil spring 30 is wound on the support shaft 12 to perform winding and force storage;

when the free end of the flexible screen is close to the reel 20, the coil spring 30 has a second state of being relaxed around the support shaft 12, and the flexible screen 21 is wound on the reel 20, that is, the reel 20 is rotated by the coil spring 30, so that the flexible screen is wound on the reel 20.

The reel 20 has a pre-tightening locking arm 41 at one end near the supporting seat 10, and the pre-tightening locking arm 41 is detachably connected with the base 11 through a locking connector. Specifically, the pre-tightening lock arm 41 is provided with a lock through hole, the base 11 is provided with a lock mounting hole 13 at a position corresponding to the lock through hole, and the lock connector passes through the lock through hole and the lock mounting hole 13 to fix the spool 20 on the base 11, so as to lock the coil spring 30 by accumulating force, so that the coil spring 30 has a force for keeping elastic recovery in the second state of relaxation.

One end of the flexible screen is fixedly connected with the scroll 20, and the other end of the flexible screen forms a free end; when the free end moves away from the scroll 20, that is, the flexible screen can drive the scroll 20 to rotate in the process of unfolding, further, the outer spring end 31 of the coil spring 30 is fixedly connected with the scroll 20, and the coil spring 30 can be driven to wind on the support shaft 12 to wind tightly and store force while the scroll 20 rotates; after the flexible screen is unfolded to the maximum position and displayed, when the free end moves close to the scroll 20, the coil spring 30 after storing the force can generate a relatively constant winding moment to drive the scroll 20 to rotate, and the flexible screen can be automatically wound on the scroll 20 in the rotating process of the scroll 20.

According to the winding device, the winding shaft 20 is rotatably sleeved on the supporting shaft 12, and the coil spring 30 capable of providing winding power is arranged, wherein the outer spring end 31 of the coil spring 30 is fixedly connected with the winding shaft 20, the inner spring end 32 is fixedly connected with the supporting shaft 12, and when the free end of the flexible screen is far away from the winding shaft 20, the winding shaft 20 is driven to rotate, so that the coil spring 30 is driven to wind tightly for storing force; when the free end of the flexible screen is close to the scroll 20, the coil spring 30 after storing the force can provide the revolving driving force for the scroll 20, so that the flexible screen can be conveniently and rapidly wound on the scroll 20 automatically, and the flexible screen can be accommodated. In order to pre-tighten and store the coil spring 30, one end of the winding shaft 20 close to the supporting seat 10 is provided with a pre-tightening locking arm 41, a locking through hole is formed in the pre-tightening locking arm 41, the base 11 is provided with a locking mounting hole 13 at a position corresponding to the locking through hole, after a locking connecting piece passes through the locking through hole and the locking mounting hole 13, the winding shaft 20 is fixed on the base 11, and then the coil spring 30 is locked in a stored force mode, so that the coil spring 30 has a force for keeping elastic recovery in the second state of relaxation. This take-up device simple structure, convenient operation holds power through carrying out the pretension to the wind spring for the wind spring has the power that keeps elastic recovery, and flexible screen of rolling that can be convenient, swift has promoted user's use and has experienced, has also improved electronic equipment's practicality. Simultaneously, the winding device of this application establishes to stand-type, compares traditional horizontal winding device, and the left and right sides of flexible screen is expanded, the rolling more accords with people's visual angle effect.

Fig. 4 is an exploded view of a winding device provided in an embodiment of the present application. Fig. 5 is a top view of a winding device provided in an embodiment of the present application. Fig. 6 is a schematic structural view of a coil spring fixing case provided in an embodiment of the present application.

Alternatively, as shown in fig. 2 to 6, the reel 20 includes a coil spring fixing case 40, and the coil spring fixing case 40 is rotatably sleeved on the support shaft 12.

Here, the coil spring fixing case 40 is formed with a through hole through which the coil spring fixing case 40 is fitted to the base 11 from the top end of the support shaft 12 downward, so that the coil spring fixing case 40 can be fitted to the support shaft 12 and can rotate relative to the support shaft 12.

Alternatively, as shown in fig. 4 and 6, the coil spring fixing box 40 includes a coil spring cover 44 and a peripheral wall 46, the coil spring cover 44 is provided with a second through hole 441, and the coil spring cover 44 is rotatably sleeved on the support shaft 12 through the second through hole 441 and is detachably mounted on the peripheral wall 46 of the coil spring fixing box 40.

Further, a zero clearance can be provided between the peripheral wall of the coil spring cover plate 44 and the peripheral wall 46 of the coil spring fixing case 40, and the coil spring cover plate 44 is detachably attached to the peripheral wall 46 of the coil spring fixing case 40 to cover the coil spring fixing case 40, so that the coil spring 30 located in the coil spring fixing case 40 can be prevented from being popped out and scattered.

The coil spring fixing case 40 is fixedly attached to the bottom of the spool 20, and both form an integrated rotary body that rotates around the support shaft 12.

In the embodiment of the present application, the width of the coil spring fixing box 40 may be matched with the diameter of the spool 20 located above it, so that the coil spring fixing box 40 may be more stably fixed at the bottom of the spool 20.

In other embodiments, the width of the coil spring retention cartridge 40 may be less than or slightly greater than the diameter of the spool 20, which is not limited in this application.

For example, when the width of the coil spring fixing case 40 is larger than the diameter of the winding shaft 20, more coil springs 30 can be accommodated in the coil spring fixing case 40, and further, the coil springs 30 with more turns can provide a larger winding force, so that the winding efficiency of the winding device of the present application can be improved.

In order to realize the fixed connection between the coil spring fixing box 40 and the winding shaft 20, as shown in fig. 1 to 6, optionally, a first fixing arm 45 is provided on a peripheral wall 46 of the coil spring fixing box 40, a second fixing arm 22 is correspondingly provided at the bottom of the winding shaft 20, and the second fixing arm 22 is fixedly connected with the first fixing arm 45 through a connecting member.

Specifically, through holes are respectively formed in the first fixing arm 45 and the second fixing arm 22, the through holes of the first fixing arm 45 and the second fixing arm 22 correspond in position, and then the first fixing arm 45 and the second fixing arm 22 are fixedly connected after the through holes correspondingly arranged are sequentially penetrated through by a connecting piece, so that the reel 20 and the coil spring fixing box 40 can be fixedly connected.

Alternatively, the connecting member may be any one of a bolt, a screw, a pin, a screw, and the like, which is not limited in this application.

It should be understood that the number of the first fixing arms 45 and the second fixing arms 22 may be plural and arranged at intervals, and the number of the first fixing arms 45 may be the same as the number of the second fixing arms 22. For example, in the embodiment of the present application, the number of the first fixing arm 45 and the second fixing arm 22 is four.

As shown in fig. 2 and 3, the coil spring 30 is accommodated in the coil spring housing 40, and the outer spring end 31 is fixed to an inner side wall of the coil spring housing 40.

Alternatively, as shown in fig. 2, 3 and 4, an installation groove 42 is formed on an inner wall surface of the coil spring fixing box 40, a positioning block 43 is fixedly arranged in the installation groove 42, a gap is formed between the positioning block 43 and a groove wall of the installation groove 42, the outer spring end 31 is fixedly connected to the positioning block 43 through the gap, and the outer spring end 31 can be fixed on an inner side wall of the coil spring fixing box 40.

Specifically, a mounting groove 42 is formed to protrude outward along the inner wall surface of the coil spring fixing case 40, a positioning block 43 is fixedly disposed in the mounting groove 42, a gap through which the outer spring end 31 can pass is formed between the positioning block 43 and the groove wall of the mounting groove 42, and the outer spring end 31 is fixedly connected to the positioning block 43 through the gap, so that the outer spring end 31 can be fixed on the inner wall surface of the coil spring fixing case 40.

Here, the outer spring end 31 may be provided with a hook, which may be configured as a U-shaped hook, and the U-shaped hook is fastened on the positioning block 43, so that the outer spring end 31 is more stably fixed on the inner sidewall of the coil spring fixing box 40, and the occurrence of unhooking when the coil spring 30 is not firmly fixed is prevented.

As shown in fig. 4 and 6, in order to match the mounting groove 42 formed on the inner wall surface of the coil spring fixing case 40 and the positioning block 43 fixedly disposed in the mounting groove 42 such that the coil spring cover 44 can completely cover the protrudingly disposed mounting groove 42 and the positioning block 43 disposed in the mounting groove 42, a projection 442 having a shape corresponding to the mounting groove 42 may be provided on the coil spring cover 44 to cover the mounting groove 42, the positioning block 43 and the outer spring end 31 of the coil spring 30.

The shape of the mounting groove 42 and the positioning block 43 is not limited in the present application. For example, the shape may be an arc shape, or may be other shapes, and the present application does not limit this.

Alternatively, as shown in fig. 2 and 3, the inner wall surface of the positioning block 43 and the inner wall surface of the coil spring fixing case 40 are both circular arc-shaped and located on the same circumference.

Specifically, the inner wall surfaces of the positioning block 43 and the coil spring fixing box 40 are both arc-shaped and located on the same circumference, so that the outer spring end 31 of the coil spring 30 does not damage the circumferential integrity of the coil spring 30 in winding, and the coil spring 30 can still perform circumferential winding along the inner side wall of the coil spring fixing box 40, so that the coil spring 30 can be wound smoothly, and the output winding force is relatively uniform.

Alternatively, as shown in fig. 2 to 6, the pre-tightening locking arm 41 is fixedly disposed on the peripheral wall 46 of the coil spring fixing box 40, and the coil spring fixing box 40 is fixed on the base 11 through the pre-tightening locking arm 41, so as to realize the pre-tightening power-saving locking of the coil spring 30.

Specifically, when the coil spring 30 is initially installed in the coil spring fixing box 40, due to the elastic characteristic of the coil spring 30, the coil spring 30 needs to be pre-tightened first, so as to facilitate the subsequent winding and force storage of the coil spring 30, and enable the coil spring 30 to have the force for keeping the elastic recovery in the second relaxed state, so that the flexible screen can be conveniently and quickly wound, and the quality risk of the product can be reduced.

As shown in fig. 4 and 6, the pre-tightening lock arm 41 is provided with a lock through hole, and the corresponding base 11 is provided with a lock mounting hole 13 corresponding to the lock through hole, so that when the coil spring 30 is pre-tightened, the first fixing arm 45 arranged on the peripheral wall 46 of the coil spring fixing box 40 can be rotated to drive the coil spring fixing box 40 to rotate for a plurality of circles, so that the outer spring end 31 is wound on the support shaft 12; after the rotation is finished, after the locking through hole on the pre-tightening locking arm 41 is aligned with the locking mounting hole 13 on the base 11, the pre-tightening locking arm 41 is fixedly connected with the base 11 after the locking connecting piece penetrates through the locking through hole and the locking mounting hole 13, and then the coil spring fixing box 40 is fixedly mounted on the base 11 through the pre-tightening locking arm 41, namely pre-tightening force storage locking of the coil spring 30 is realized.

Due to the inherent elastic properties of coil spring 30, normally, the first 2 turns of coil spring 30 wound onto support shaft 12 is a process of preheating coil spring 30, and the power accumulation of coil spring 30 is started from the 3 rd turn. Thus, it is generally necessary to rotate the wrap spring retention cartridge 40 at least 3 turns during the pre-tensioning of the wrap spring 30.

It should be understood that the locking connection may be any one of a bolt, a screw, a pin, a threaded rod, etc., and the application is not limited thereto.

For example, in the embodiment of the present application, the locking connector may be an M3 screw, and the diameter of the locking through hole is 3.1 mm.

Fig. 7 is a cross-sectional view of a winding device provided in an embodiment of the present application. Fig. 8 is a partial enlarged view of a portion a in fig. 7.

In order to improve the stability of the rotation of the winding shaft 20, as shown in fig. 4-7, the winding device of the present application further includes a rotation positioning member 50, wherein the rotation positioning member 50 includes a positioning sleeve 51, and the positioning sleeve 51 is rotatably disposed in the winding shaft 20.

As shown in fig. 4, 7 and 8, the winding shaft 20 is a hollow structure, a limiting protrusion 23 is disposed inside the winding shaft 20, the positioning shaft sleeve 51 is sleeved on the supporting shaft 12, the limiting protrusion 23 is located between the winding shaft 20 and the positioning shaft sleeve 51, and the outer diameter of the limiting protrusion 23 is matched with the outer diameter of the positioning shaft sleeve 51 to limit the rotation of the winding shaft 20.

Here, the position-limiting protrusion 23 is provided in a radial direction of the spool 20, and the position-limiting protrusion 23 is fixedly attached to an inner sidewall of the spool 20.

In the embodiment of the present application, the outer diameter of the limiting protrusion 23 may be equal to the outer diameter of the positioning shaft sleeve 51, and at this time, the inner side wall of the limiting protrusion 23 is slidably connected to the outer wall of the positioning shaft sleeve 51.

In other embodiments, the outer diameter of the limiting protrusion 23 may be slightly larger than the outer diameter of the positioning sleeve 51, and a certain gap exists between the inner sidewall of the limiting protrusion 23 and the outer wall of the positioning sleeve 51 to allow the spool 20 to perform a certain range of run-out in the radial direction.

Optionally, a gap between an inner side wall of the limiting protrusion 23 and an outer wall of the positioning boss 51 is greater than or equal to 0.03 mm and less than or equal to 0.01 mm.

Specifically, for example, the gap existing between the inner side wall of the stopper protrusion 23 and the outer wall of the positioning boss 51 may be 0.02 mm, 0.03 mm, or the like.

In this application, can establish the thickness of spacing arch 23 into material wall thickness, when satisfying self mechanical strength, also can reduce the area of contact between the inside wall of spacing arch 23 and the outer wall of location axle sleeve 51 to can reduce the frictional resistance between the two, promote the rotatory stability of spool 20.

Alternatively, the thickness of the stopper protrusion 23 may be between 1.5 mm and 2.5 mm. For example, the thickness of the stopper protrusion 23 may be 1.5 mm, 1.7 mm, 2.2 mm, 2.5 mm, or the like.

Alternatively, as shown in fig. 4, the limiting protrusion 23 may be a limiting ring, and a limiting hole 231 is formed inside the limiting ring; the positioning sleeve 51 is fixedly sleeved on the support shaft 12 after penetrating through the limiting hole 231.

It should be understood that the aperture of the limiting hole 231 and the outer diameter of the positioning sleeve 51 are adapted to each other so that the rotation of the spool 20 can be limited.

In other embodiments, the stop protrusion 23 may have other types of structures, such as a stop block. The present application is not limited to the type of the stopper projection 23.

Alternatively, as shown in fig. 4 and 8, the rotary positioning member 50 further includes a reel cover 52, and the reel cover 52 is fixed to the top end of the positioning sleeve 51 and extends radially outward to cover the reel 20.

Here, in order to be able to improve the stability of the rotation of the reel 20 and maintain the integrity of the winding device, a reel cover 52 may be installed on the top of the reel, the reel cover 52 is fixed to the top end of the positioning boss 51 and extends outward in the radial direction, and the outer diameter of the reel cover 52 may be larger than the diameter of the hollow structure, so that the hollow structure of the reel 20 can be completely covered. Meanwhile, the contact area between the reel cover plate 52 and the limiting protrusion 23 can be reduced, and the frictional resistance between the reel cover plate and the limiting protrusion is reduced.

Optionally, as shown in fig. 4 and 8, the rotary positioning element 50 further includes a sealing plate 53 disposed at the top end of the positioning shaft sleeve 51, the sealing plate 53 is provided with a positioning through hole, the top end of the supporting shaft 12 is provided with a screw hole 14, and the adjusting screw 60 passes through the positioning through hole and is fastened in the screw hole 14, so as to fix the positioning shaft sleeve 51 on the supporting shaft 12.

In the present application, the gap between the cover plate 52 and the top of the reel 20 can be adjusted by loosening or tightening the adjusting screw 60 to allow the reel 20 to axially run a certain range of play, depending on the axial run-out and/or the rotation resistance of the reel 20 during rotation.

Optionally, the gap between the spool cover 52 and the top of the spool 20 is greater than or equal to 0.04 mm and less than or equal to 0.06 mm.

Specifically, the gap between the spool cover 52 and the top of the spool 20 may be 0.04 millimeters, 0.05 millimeters, or the like.

Alternatively, as shown in fig. 4 and 8, the limiting protrusion 23 sinks into the hollow structure of the reel 20, so that a gap is formed between the limiting protrusion 23 and the reel cover plate 52, and the contact area between the limiting protrusion 23 and the reel cover plate 53 can be reduced, so that the frictional resistance between the two can be reduced, which is beneficial to improving the stability of the rotation of the reel 20.

Alternatively, as shown in fig. 4 and 8, a top end of the winding shaft 20 is provided with a first flange 24 protruding radially outward, and a bottom end of the winding shaft 20 is provided with a second flange 25 protruding radially outward.

Here, the first flange 24 is provided at the top end of the reel 20 to protrude radially outward, and by providing the first flange 24, the contact area of the reel cover 52 and the top end of the reel 20 can be increased, the mechanical strength of the top end of the reel 20 can be enhanced, and the bearing capacity of the reel 20 against the reel cover 52 can be improved.

In the present application, the first flange 24 and the second flange 25 may be both circular rings. In order to prevent the contact area between the first flange 24 and the reel cover 52 from becoming too large, the first flange 24 may be provided as a narrow ring, wherein the width of the first flange 24 may be between 2 mm and 3 mm. For example, the width of the first flange 24 may be 2.5 millimeters, 3 millimeters, or the like.

The second flange 25 is arranged at the bottom end of the scroll 20 in a protruding mode along the radial direction, the flexible screen is arranged between the first flange 24 and the second flange 25, the flexible screen can be limited by the first flange 24 and the second flange 25 when being wound on the scroll 20, and therefore the situation that the flexible screen is misplaced can be avoided.

Alternatively, the rotating positioning member 50 is made by an integral molding process. The integral molding process may be casting molding or 3D printing, and the like, which is not limited in the present application.

According to the rotating and fixing device, the coil spring fixing box 40 is arranged at the bottom of the scroll 20, the rotating positioning piece 50 is arranged at the top of the scroll 20 to be matched with the upper rotating and fixing support hub and the lower rotating and fixing support hub to form an upper rotating and fixing support hub and a lower rotating and fixing support hub, the rotation of the scroll 20 can be restrained, the position deviation of the scroll 20 to the top and/or the bottom in the rotating process is limited, the rotating resistance of the scroll 20 is reduced, and the rotating stability of the scroll 20 is greatly improved.

Fig. 9 is a partial enlarged view of fig. 7 at B.

As shown in fig. 3, 4 and 9, at the fixed connection position of the winding shaft 20 and the coil spring fixing box 40, since the inner wall surface of the coil spring fixing box 40 protrudes outwards to form a mounting groove 42, a positioning block 43 is fixedly arranged in the mounting groove 42, and a projection 442 which is adapted to the shape of the mounting groove 42 is arranged on the coil spring cover 44, in order to enable the coil spring fixing box 40 to be tightly connected to the bottom of the winding shaft 20, a position avoiding groove which is adapted to the projection 442 of the coil spring cover 44 can be arranged in the bottom of the winding shaft 20, and a positioning step 26 is formed at the same time, and the positioning step 26 is pressed on the coil spring cover 44, thereby further preventing the coil spring 30 from being ejected.

Fig. 10 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.

In a second aspect, as shown in fig. 10, the present application further provides an electronic device, including the winding device provided in any of the embodiments of the first aspect and a flexible screen 21, where one end of the flexible screen 21 is fixedly connected to the peripheral wall of the winding shaft 20, and the other end can be wound on the winding shaft 20. According to the electronic device provided by the application, the flexible screen 21 can be automatically rolled.

Specifically, the flexible screen 21 or the display capable of being wound on the reel 20 generally includes two opposite ends, wherein one end of the flexible screen 21 or the display is fixed on the reel 20, and the other end of the flexible screen 21 or the display can be a free end or fixed on a moving shaft, and the flexible screen 21 or the display is pulled out and unfolded from the reel 20 along with the movement of the free end or the moving shaft; alternatively, the flexible screen 21 or the display is wound on the reel 20 under rotation of the reel 20. Therefore, not only can the occupied space of the flexible screen 21 or the display be reduced, the portability of the electronic equipment be improved, but also the use interest of the user can be improved.

Optionally, since the flexible screen 21 is wound on the reel 20, when being unwound, in order to avoid damage to the flexible screen 21 caused by excessive pulling force, a zero point sensing device (not shown in the figure) may be further disposed in the electronic device; when the free end of the flexible screen 21 moves to the zero point sensing means, the movement is stopped.

In the application, when the free end of the flexible screen 21 is pulled by the driving device and moves from the initial zero position to the maximum unfolding position of the flexible screen 21, and the pulling moment of the driving device borne by the flexible screen 21 is larger than the automatic winding moment of the coil spring 30, the flexible screen 21 can be pulled by the driving device; after the flexible screen 21 is displayed at the maximum unfolding position, the flexible screen 21 moves back to the zero position under the control of the driving device and the controller, and the flexible screen 21 is automatically wound on the scroll 20 under the winding force of the constant-force coil spring 30, so that the automatic unfolding and automatic winding similar to the scroll are realized.

Alternatively, the driving device may be a motor or other driving components, which is not limited in this application.

Alternatively, the flexible screen 21 may include a fixed end, a display area, and a free end; wherein the fixed end is fixed on the reel 20, the free end is fixed on the side wall of a movable shaft which can move, one end of the display area is connected with the fixed end, and the other end is connected with the free end; the junction of the display area and the free end is located on the side of the axis of movement facing away from the fixed end 22.

One end of the flexible screen 21 is generally provided with a screen edge plate. For example, a circuit board (X board) for sustain driving, a scan driving board (Y board), and a data driving board (Z board). A Flexible Printed Circuit (FPC) may be further included in the flexible screen 21, and the screen edge board is electrically connected to the flexible screen 21 through the FPC. An Integrated Circuit (IC) chip may be disposed on the flexible printed circuit, so as to adjust or control the display content of the flexible screen 21.

Specifically, one end of the flexible screen 21 with the X plate, i.e. the aforementioned free end, can be fixedly connected to a movable shaft, and the movable shaft is provided with the position of the X plate and a fixed screw post, etc.

The other end of the flexible panel 21 is not provided with a panel edge plate and is provided with a Chip On Flex (COF), which is a technique for fixing an integrated circuit chip (IC) to a Flexible Printed Circuit (FPC).

The end of the flexible screen 21 provided with the COF is fixedly connected to the reel 20. Since the COF may be thicker than the thickness of the flexible panel 21.

As a specific example, the thickness of the COF is thicker than the thickness of the flexible panel 21 by 0.8 mm, for example. In order to facilitate the winding of the flexible screen 21 and avoid the stress influence caused by the thickness of the COF, the reel 20 is provided with a COF and a relief groove for the thickness of the screen, so that the flexible screen 21 can be smoothly wound on the reel 20,

it is understood that the flexible screen 21 can display image and sound files such as pictures, videos or multimedia, and therefore, the flexible screen 21 can have a data input port.

Alternatively, in an embodiment of the present application, the data input port may be a Universal Serial Bus (USB) port. In other embodiments, the data input port may also input data to be displayed to the flexible screen 21 through one or more of bluetooth (bluetooth) or wireless local area network (WIFI), which is not limited in this application.

It should be noted that, since the flexible screen 21 has a plurality of different applications, such as folding a mobile phone, winding a television, etc., the electronic device having the flexible screen 21 may further be provided with a controller, a remote controller, a wireless communication module, etc., and the remote controller and the wireless communication module are respectively electrically connected to the controller.

The electronic equipment can be remotely controlled through the remote controller, and communication connection between the electronic equipment and other equipment can be established through the wireless communication module.

Alternatively, the controller may be a Micro Controller Unit (MCU).

Alternatively, the wireless communication module may include one or more of bluetooth, ZigBee, Wi-Fi, UWB (ultra wide band), NFC (near field communication), or infrared communication.

It should be understood that the above description is only for the purpose of helping those skilled in the art better understand the embodiments of the present application, and is not intended to limit the scope of the embodiments of the present application. Various equivalent modifications or changes, or combinations of any two or more of the above, may be apparent to those skilled in the art in light of the above examples given. Such modifications, variations, or combinations are also within the scope of the embodiments of the present application.

It should also be understood that the foregoing descriptions of the embodiments of the present application focus on highlighting differences between the various embodiments, and that the same or similar elements that are not mentioned may be referred to one another and, for brevity, are not repeated herein.

It should also be understood that the manner, the case, the category, and the division of the embodiments are only for convenience of description and should not be construed as a particular limitation, and features in various manners, the category, the case, and the embodiments may be combined without contradiction.

It is also to be understood that the terminology and/or the description of the various embodiments herein is consistent and mutually inconsistent if no specific statement or logic conflicts exists, and that the technical features of the various embodiments may be combined to form new embodiments based on their inherent logical relationships.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A winding device, comprising:

the supporting seat (10) comprises a base (11) and a supporting shaft (12) arranged on the base (11);

the scroll (20) is rotatably sleeved on the supporting shaft (12), one end of the flexible screen (21) is connected to the scroll (20), and the other end of the flexible screen forms a free end;

the coil spring (30) is sleeved on the supporting shaft (12), an outer spring end (31) of the coil spring (30) is connected with the reel (20), and an inner spring end (32) of the coil spring (30) is connected with the supporting shaft (12);

when the free end is far away from the reel (20), the coil spring (30) has a first state of winding tightly on the supporting shaft (12); when the free end is close to the reel (20), the coil spring (30) has a second state of relaxation wound around the support shaft (12), and the flexible screen (21) is wound around the reel (20);

the reel (20) is provided with a pre-tightening locking arm (41) at one end close to the supporting seat (10), and the pre-tightening locking arm (41) is detachably connected with the base (11) through a locking connecting piece.

2. The winding device according to claim 1, wherein the pre-tightening locking arm (41) is provided with a locking through hole, the base (11) is provided with a locking mounting hole (13) at a position corresponding to the locking through hole, and the locking connector passes through the locking through hole and the locking mounting hole (13) to fix the winding shaft (20) on the base (11) so as to pre-tighten and lock the coil spring (30).

3. The winding device according to claim 2, characterized in that the winding shaft (20) comprises a coil spring fixing box (40), the coil spring fixing box (40) is rotatably sleeved on the supporting shaft (12), the coil spring (30) is accommodated in the coil spring fixing box (40), and the outer spring end (31) is fixed on the inner side wall of the coil spring fixing box (40).

4. The winding device according to claim 3, characterized in that the pretensioned locking arm (41) is fixedly arranged on a peripheral wall (46) of the wrap spring retaining box (40), the wrap spring retaining box (40) being fixed to the base (11) by means of the pretensioned locking arm (41) to achieve a pretensioned power locking of the wrap spring (30).

5. The coiling device as claimed in claim 4, characterized in that the inner wall surface of the coil spring fixing box (40) is formed with a mounting groove (42), a positioning block (43) is fixedly arranged in the mounting groove (42), a gap is formed between the positioning block (43) and the groove wall of the mounting groove (42), and the outer spring end (31) passes through the gap and is fixedly connected to the positioning block (43); and/or the presence of a gas in the gas,

the supporting shaft (12) is provided with a first through hole (121), and an inner spring end (32) of the coil spring (30) penetrates through the first through hole (121) and then is bent, so that the inner spring end (32) is fixed on the supporting shaft (12).

6. The winding device according to claim 5, wherein the coil spring fixing box (40) comprises a coil spring cover plate (44), a second through hole (441) is formed in the coil spring cover plate (44), and the coil spring cover plate (44) is rotatably sleeved on the supporting shaft (12) through the second through hole (441) and is detachably mounted on the peripheral wall (46).

7. The winding device according to claim 5, characterized in that a first fixing arm (45) is arranged on the peripheral wall (46), a second fixing arm (22) is correspondingly arranged at the bottom of the winding shaft (20), and the second fixing arm (22) is fixedly connected with the first fixing arm (45) through a connecting piece.

8. The winding device according to claim 5, wherein the inner wall surface of the positioning block (43) and the inner wall surface of the coil spring fixing case (40) are both circular arc-shaped and located on the same circumference.

9. Spooling apparatus as defined in any of claims 1-8, characterized in that the spooling apparatus further comprises a rotational positioning member (50), the rotational positioning member (50) comprising a positioning sleeve (51), the positioning sleeve (51) being rotatably arranged within the spool (20).

10. An electronic device, comprising a winding device according to any one of claims 1 to 9 and a flexible screen (21), one end of the flexible screen (21) being fixedly attached to the peripheral wall of the winding shaft (20) and the other end being capable of being wound around the winding shaft (20).

Images