CN113383293A - Key assembly, winding device and flexible keyboard - Google Patents

Abstract

The application discloses flexible keyboard, including flexible input screen and be used for the rolling the coiling mechanism of flexible input screen, the coiling mechanism include the casing, set up with rotating in reel in the casing and set up in the key-operated component of casing one end, set up in the reel and be used for the drive the reel pivoted driving piece, the key-operated component is including being fixed in the tip of reel is followed reel pivoted key circuit board, key circuit board court of the back one side of reel sets up at least one button, the button is used for control the rotation of driving piece, the key-operated component still including set up with moving about in key cap on the casing, the key cap with the button corresponds, presses the key cap contact loosen behind the button the key cap triggers the button, the key cap reset with the button separation. The application also discloses the coiling mechanism reaches button subassembly.

Description

Key assembly, winding device and flexible keyboard Technical Field

The application relates to the technical field of keys, in particular to a key assembly, a winding device with the key assembly and a flexible keyboard with the winding device.

Background

In the prior art, driving parts such as a motor or a motor are generally controlled through buttons, in some special functional requirements, the driving parts are arranged on a central shaft, and the buttons need to be rotated. However, most of the existing keys are static keys, and the keys cannot rotate and cannot meet special functional requirements; on the other hand, the rotatable key in the prior art has the problem of abrasion due to the fact that a reasonable structure is not adopted, and the expected service life cannot be achieved.

Disclosure of Invention

The application discloses button subassembly, have this button subassembly's coiling mechanism and have this coiling mechanism's flexible keyboard, the button in this button subassembly can rotate and can prevent wearing and tearing.

The key assembly comprises a key circuit board which is fixed at the end part of the winding drum and rotates along with the winding drum, wherein one side of the key circuit board, which faces away from the winding drum, is provided with at least one key, and the key is used for controlling the rotation of the driving part; the key assembly further comprises a key cap movably arranged on the shell, the key cap corresponds to the key, the key cap is pressed to abut against the key cap, the key cap is released after being pressed to trigger the key, and the key cap resets and is separated from the key.

This application on the other hand still provides a coiling mechanism, the coiling mechanism include the casing, set up with rotating in reel and foretell key assembly in the casing, wherein, key assembly is used for control the rotation of reel.

Still another aspect of this application provides a flexible keyboard, flexible keyboard includes flexible input screen and foretell coiling mechanism, wherein, flexible input screen can roll in the coiling mechanism.

The application provides a button subassembly, key circuit board is fixed in on the terminal surface of reel, the button for drive shaft eccentric settings makes the drive shaft can set up in on the center pin of coiling mechanism, the mainboard parts such as driving piece rationally distributed, have reduced the occupation space of coiling mechanism. When the keycap is pressed and released to trigger the key to control the driving piece to rotate, the driving piece can drive the winding drum to rotate relative to the shell, and the flexible input screen can be wound on the outer peripheral surface of the winding drum and wound in the shell of the winding device, so that the flexible input screen is convenient for a user to carry. In addition, after the key cap is loosened, the key cap can be separated from the key, the key is not abraded in the rotating process of the winding drum, and the service life of the key is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a partially exploded perspective view of a flexible keyboard according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of the winding device of fig. 1 along a center line thereof.

Fig. 3 is an enlarged view of a portion III in fig. 2.

Fig. 4 is a schematic perspective exploded view of the flexible keyboard of fig. 1.

Fig. 5 is a schematic view of the structure of fig. 4 from another perspective.

Fig. 6 is a schematic diagram of a further view of fig. 4.

Fig. 7 is a partially perspective assembled view of the flexible keyboard of fig. 4.

Fig. 8 is an assembled view from another perspective of fig. 7.

Fig. 9 is a schematic perspective view of the key circuit board in fig. 7.

Fig. 10 is a further perspective assembled view of the flexible keyboard of fig. 7.

Fig. 11 is a perspective view of another perspective view of fig. 10.

Fig. 12 is a perspective view of the fixing member of fig. 11.

Fig. 13 is an enlarged view of XIII part in fig. 10.

Fig. 14 is an enlarged view of the XIV portion in fig. 11.

Fig. 15 is a further perspective assembled view of the flexible keyboard of fig. 11.

Fig. 16 is a top view of the winding device of fig. 15.

Fig. 17 is a schematic perspective exploded view of the XVII portion in fig. 11.

FIG. 18 is a schematic perspective view of the key cap of FIG. 17.

FIG. 19 is a schematic perspective view of the light guide bar of FIG. 17.

Fig. 20a and 20b are schematic perspective views of the flexible keyboard in fig. 1 in a rolling state and a spreading state, respectively.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, 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.

Referring to fig. 1 to 7, the present application provides a flexible keyboard 100, which includes a flexible input screen 10 and a winding device 200 for winding the flexible input screen 10, wherein the winding device 200 includes a housing 20, a winding drum 30 rotatably disposed in the housing 20, and a key assembly disposed at one end of the housing 20. One end of the flexible input screen 10 is arranged on the winding drum 30, a main board 31 is arranged in the winding drum 30, a driving part 32 connected with the main board 31 is arranged at the end part in the winding drum 30, the driving part 32 is used for driving the winding drum 30 to rotate, and a driving shaft 325 of the driving part 32 penetrates out of the end surface of the winding drum 30 along the axial direction of the winding drum 30. The key assembly comprises a key circuit board 40, the key circuit board 40 is fixed on the end surface of the winding drum 30 and rotates along with the winding drum 30, the driving shaft 325 passes through the key circuit board 40 and then is fixed on the shell 20, the key circuit board 40 is electrically connected with the main board 31, at least one key 41 is arranged on one side of the key circuit board 40 back to the winding drum 30, and the key 41 is used for controlling the rotation of the driving part 32. The key assembly further comprises a key cap 60 movably arranged on the casing 20, the key cap 60 corresponds to the key 41, the key cap 60 is pressed to abut against the button 41, the key cap 60 is released to trigger the key 41, and the key cap 61 is reset to be separated from the key 41.

In this embodiment, the main board 31 is provided with a plurality of electronic components and antennas, which are used for implementing various functions and signal transmission; the main board 31 is further provided with a plurality of connectors for electrically connecting components such as the driving member 32; the driving member 32 is a motor electrically connected to the main board 31.

In this application, the key circuit board 40 is fixed in on the terminal surface of the winding drum 30 and can follow the winding drum 30 is rotatory, the key 41 is for the drive shaft 325 eccentric arrangement makes the drive shaft 325 can set up in on the center pin of the winding drum 30, also on the center pin of the winding apparatus 200, the mainboard 31 the driving piece 32 and other parts are rationally distributed in the winding drum 30, the winding drum 30 occupies less space, and then reduces the occupied space of the winding apparatus 200. When the key cap 60 is pressed and released to trigger the key 41 to control the driving element 32 to rotate, the driving element 32 can drive the winding drum 30 to rotate relative to the housing 20, and the flexible input screen 10 can be wound on the outer peripheral surface of the winding drum 30 and wound in the housing 20 of the winding device 200, so that the flexible input screen is convenient for a user to carry. In addition, after the key cap 60 is loosened, the key cap 60 is reset to be separated from the key 41, and the key 41 cannot be abraded in the process of rotating along with the winding drum 30, so that the service life of the key 41 is prolonged.

Specifically, referring to fig. 4 to 6, the reel 30 includes a reel seat 33 and a detachable reel cover 34, the reel cover 34 can cover the reel seat 33 and form an inner cavity, the main board 31, the driving member 32 and a battery 35 located between the main board 31 and the driving member 32 are disposed in the inner cavity of the reel 30 along an axial direction thereof, and the battery 35 is connected to the main board 31 and the driving member 32 respectively. The battery 35 can provide power to the driving member 32, the main board 31, and the key circuit board 40 connected to the main board 31. In this embodiment, the battery 35 is shown as a rechargeable battery.

The winding drum seat 33 includes a strip-shaped slot 331, a first rotating portion 332 disposed at one end of the slot 331, and a second rotating portion 333 disposed at the other end opposite to the slot 331.

Wherein, driving piece constant head tank 3311, battery constant head tank 3312 and mainboard constant head tank 3313 have set gradually along its length direction in the cell body 331, each the correspondence is provided with in the constant head tank and is used for the location support the driving piece 32 the battery 35 reaches the auxiliary structure of mainboard 31, the both ends that mainboard constant head tank 3313 is relative still are provided with respectively and are used for the installation the connecting hole of mainboard 31. Still be provided with a plurality of spliced poles 3314 in the cell body 331, each spliced pole 3314 has seted up the connecting hole 3315 in the axial, connecting hole 3315 break-through to the mounting plane 3316 of cell body 331, mounting plane 3316 is provided with a plurality of reference columns 3317 along its length direction interval. The groove 331 is provided with an avoiding portion 3318 on the outer wall of one side of the main plate positioning groove 3313, and the avoiding portion 3318 extends to the mounting plane 3316.

Specifically, in this embodiment, three connecting posts 3314 are disposed in the slot 331, the connecting posts 3314 are located on the central line of the slot 331, one of the connecting posts 3314 is disposed between the driving member positioning slot 3311 and the battery positioning slot 3312, one of the connecting posts 3314 is disposed between the battery positioning slot 3312 and the main board positioning slot 3313, the other connecting post 3314 is disposed on one side of the main board positioning slot 3313 close to the second rotating portion 333, when the main board 31 is mounted in the main board positioning slot 3313, the other connecting post 3314 penetrates through the main board 31, correspondingly, a through hole is formed in the main board 31. The slot 331 is provided with five positioning posts 3317 at intervals along the length direction of the mounting plane 3316, and the positioning posts 3317 and the connecting holes 3315 penetrating through the mounting plane 3316 are all located on the center line of the mounting plane 3314.

In other embodiments, the connecting posts 3314 may be located at other positions; in other embodiments, the connecting posts 3314 may be provided in any number, two, four or other suitable arrangement.

In other embodiments, the positioning posts 3317 and the connecting holes 3315 may not be located on the same straight line; in other embodiments, the positioning posts 3317 may be provided in any number, such as three, four or other suitable number.

First rotation portion 332 including set up in the first baffle 3321 of the circular shape of cell body 331 tip, first baffle 3321 deviates from the protruding first pivot 3322 that is equipped with in the middle part of one side of cell body 331, the axial lead of first pivot 3322 with the axial lead coincidence of reel 30, through-hole 3323 has been seted up along the direction of its axial lead to first pivot 3322, through-hole 3323 passes first baffle 3321 and with driving piece constant head tank 3311 intercommunication. The first baffle 3321 and the first rotating shaft 3322 are both provided with a notch 3324 for facilitating the installation of the driving member 32. The end surface of the first rotating shaft 3322 is further provided with a connecting hole 3325 and two positioning pillars 3326, specifically, in this embodiment, one side of the through hole 3323 is provided with one connecting hole 3325, and two positioning pillars 3326 are arranged around the edge of the through hole 3323.

In other embodiments, the positioning columns 3326 may be arranged in one, three or other numbers.

The second rotating portion 333 includes a circular second baffle 3331 disposed at the other end of the trough 331, a second rotating shaft 3332 is convexly disposed at the middle of one side of the second baffle 3331 departing from the trough 331, and an axial line of the second rotating shaft 3332 coincides with an axial line of the winding drum 30, that is, the first rotating shaft 3322 is coaxial with the second rotating shaft 3332. The second shaft 3332 is provided with a through hole 3333 along the axial line thereof, the through hole 3333 penetrates through the second baffle 3331 and is communicated with the main plate positioning groove 3313, and the through hole 3333 is used for installing a conductive slip ring 36.

Preferably, in this embodiment, the first rotating shaft 3322 and the second rotating shaft 3332 have the same diameter and are sleeved with the same bearing 37.

In other embodiments, the first shaft 3322 and the second shaft 3332 may have different diameters and are respectively sleeved with bearings having the same outer diameter and different inner diameters.

As shown in fig. 4 to 6, the reel cover 34 includes a semi-cylindrical cover 341 with an arc cross section, the cover 341 has a driving member positioning groove 3411, a battery positioning groove 3412 and a main board positioning groove 3413 sequentially arranged along a length direction thereof, and similarly, an auxiliary structure for positioning and supporting the driving member 32, the battery 35 and the main board 31 is correspondingly arranged in each positioning groove, and an avoiding groove is further arranged in the main board positioning groove 3413 at a position corresponding to a plurality of connectors of the main board 31. The opposite two sides of the cover 341 are provided with a convex strip 3414, when the roll cover 34 is covered on the roll seat 33, the convex strip 3414 can be engaged with the two opposite inner sides of the groove 331, and the inner edge of the groove 331 is in a closed-up shape, so as to facilitate the convex strip 3414 to be engaged with. The cover 341 further has a plurality of countersunk through holes 3415 along the length direction, and the countersunk through holes 3415 correspond to the connecting posts 3314 of the spool holder 33 one to one. A notch 3416 is formed in an outer wall of the cover 341 on a side corresponding to the main plate positioning groove 3413, and the notch 3416 corresponds to the avoiding portion 3318 of the spool seat 33.

The winding drum 30 further includes a conductive slip ring 36 disposed in the through hole 3333, and two bearings 37 sleeved on the first rotating shaft 3322 and the second rotating shaft 3322. Specifically, the conductive slip ring 36 includes a first connector 361 and a second connector 362 disposed at two opposite ends, the first connector 361 is used for connecting the main board 31, the second connector 362 is used for connecting a charging circuit board 38, and the main board 31 is electrically connected to the charging circuit board 38. The two bearings 37 are respectively sleeved and fixed on the first rotating shaft 3322 and the second rotating shaft 3332, inner rings of the bearings 37 are sleeved and fixed on the outer peripheral surfaces of the corresponding rotating shafts, the end surfaces of one ends of the bearings 37 abut against the corresponding baffle, wherein the end surfaces of the first rotating shaft 3322 and the second rotating shaft 3332 penetrate through the end surface of the other end of the bearing 37 far away from the baffle, that is, the end surface of the winding drum 30 penetrates through one end of the bearing 37 far away from the baffle.

The second connector 362 is electrically connected to the slip ring 36 in a rotatable manner. Specifically, in the present embodiment, the second connector 362 is rotatably connected to the slip ring 36 through a cable, and when the slip ring 36 rotates with the winding drum 30, the cable between the second connector 362 and the slip ring 36 can rotate mutually, that is, the cable of the second connector 362 is rotatably connected to the slip ring 36.

Therefore, when the winding drum 30 rotates, the conductive slip ring 36 rotates together with the winding drum 30, and the cable wire of the second connector 362 and the conductive slip ring 36 rotate relatively, so that the cable wire of the second connector 362 can be prevented from being twisted repeatedly, and the cable wire is prevented from being twisted off.

In other embodiments, the second connector 362 is a conductive metal ring circumferentially disposed on the outer circumferential surface of the conductive slip ring 36, the charging circuit board 38 is provided with conductive pins contacting with the conductive metal ring, and when the conductive slip ring 36 rotates with the winding drum 30, the conductive metal ring rotationally contacts with the conductive pins on the charging circuit board 38, so as to achieve the electrical connection between the main board 31 and the charging circuit board 38.

In other embodiments, the second connector 362 is a conductive metal ring disposed on an end surface of the conductive slip ring 36 facing the charging circuit board 38, an axis of the conductive metal ring coincides with an axis of the winding drum 30, a conductive elastic sheet connected to the conductive metal ring is disposed on the charging circuit board 38, and when the conductive slip ring 36 rotates with the winding drum 30, the conductive metal ring rotationally contacts the conductive elastic sheet on the charging circuit board 38, so as to achieve electrical connection between the main board 31 and the charging circuit board 38.

Further, referring to fig. 6 to 8, one end of the flexible input screen 10 is disposed on the winding drum 30, and when the winding drum 30 rotates, the flexible input screen 10 can be wound on the outer circumferential surface of the winding drum 30.

Specifically, in this embodiment, the flexible input screen 10 is adhered to the mounting plane 3316 of the reel seat 33 by a double-sided adhesive 11 and is pressed and fixed by a pressing plate 12, and an elastic gasket 13 is disposed between the flexible input screen 10 and the pressing plate 12 to prevent the flexible input screen 10 from being damaged by the pressing plate 12.

One end of the flexible input screen 10 is provided with a plurality of positioning holes 101 and notches 102, the positioning holes 101 correspond to the positioning posts 3317 of the mounting plane 3316 one by one, and the notches 102 correspond to the connecting holes 3315 of the reel seat 33 one by one. The end of the flexible input screen 10 is extended with a flexible circuit board 103 for connecting the main board 31. The other end of the flexible input screen 10 opposite to the flexible input screen is provided with a plurality of through holes.

The double-sided adhesive tape 11 is provided with a plurality of positioning holes 111 and notches 112, the positioning holes 111 correspond to the positioning posts 3317 of the mounting plane 3316 one by one, and the notches 112 correspond to the connecting holes 3315 of the reel seat 33 one by one.

The pressing plate 12 is a strip plate with an arc surface, the pressing plate 12 is provided with a plurality of positioning holes 121 and a plurality of countersunk through holes 122, the positioning holes 121 correspond to the positioning posts 3317 on the mounting plane 3316 one to one, and the countersunk through holes 122 correspond to the connecting holes 3315 on the winding drum seat 33 one to one.

Similarly, the elastic pad 13 is provided with a plurality of positioning holes 131 and notches 132, the positioning holes 131 correspond to the positioning posts 3317 on the mounting plane 3316 one by one, and the notches 132 correspond to the connecting holes 3315 on the reel seat 33 one by one.

In this application, when one end of the flexible input screen 10 is disposed on the reel 30, the double-sided adhesive tape 11 is firstly adhered to the mounting plane 3316, then one end of the flexible input screen 10, which extends to form the flexible circuit board 103, is adhered to the double-sided adhesive tape 11, then the elastic gasket 13 is laminated on the flexible input screen 10, and finally the pressing plate 12 is laminated on the elastic gasket 13, in this process, a plurality of positioning posts 3317 on the mounting plane 3316 can respectively pass through the corresponding positioning holes 111, positioning holes 101, and positioning holes 131 and finally be inserted into the positioning holes 121, a plurality of connecting holes 3315 on the reel base 33 respectively correspond to the notches 112, 102, 132, and countersunk head through holes 122, each countersunk head through hole 122 is inserted with a screw and fixed with the connecting hole 3315 by screwing, thus, one end of the flexible input screen 10 is fixed to the roller 30 by pressing.

After the flexible input screen 10 is adhered to the mounting plane 3316, the flexible circuit board 103 corresponds to the avoiding portion 3318, and the flexible circuit board 103 can be folded at the avoiding portion 3318 into the main board positioning groove 3313 for connecting the main board 31.

In other embodiments, the end of the flexible input screen 10 from which the flexible circuit board 103 extends may be disposed on the mounting plane 3316 of the reel seat 33 by other methods, for example, by adhering optical glue to the mounting plane 3316.

In other embodiments, the end of the flexible input screen 10 from which the flexible circuit board 103 extends may be disposed on the roll cover 34, and accordingly, a corresponding mounting plane is disposed on the roll cover 34.

It should be noted that, after the pressing plate 12 is pressed on the mounting plane 3316, the arc surface of the pressing plate 12 and the outer wall surfaces of the two opposite sides of the winding drum seat 33 form a half circumferential surface.

The opposite end of the flexible input screen 10 is disposed on a pull rod 70, specifically, in this embodiment, the pull rod 70 includes a first pressing strip 71 and a second pressing strip 72 matching with the first pressing strip 71, and the flexible input screen 10 is clamped between the first pressing strip 71 and the second pressing strip 72. Similarly, the opposite end of the flexible input screen 10 is bonded to the first pressing strip 71 through a double-sided adhesive 73, and an elastic gasket 74 is disposed between the flexible input screen 10 and the second pressing strip 72.

The first press-fit strip 71 is provided with a plurality of positioning columns 711 protruding along the length direction thereof, the second press-fit strip 72 is provided with a plurality of positioning holes 721, the positioning holes 721 are in one-to-one correspondence with the positioning columns 711 of the first press-fit strip 71, and the corresponding end portion of the flexible input screen 10, the double-sided tape 73, and the elastic gasket 74 are respectively provided with a plurality of through holes corresponding to the positioning columns 711 of the first press-fit strip 71.

In this application, when the opposite end of the flexible input screen 10 is disposed on the pull rod 70, the double-sided adhesive tape 73 is firstly adhered to the first press-fit strip 71, then the opposite end of the flexible input screen 10 is adhered to the double-sided adhesive tape 73, then the elastic gasket 74 is laminated on the flexible input screen 10, and finally the second press-fit strip 72 is laminated on the elastic gasket 74, in this process, the positioning posts 711 of the first press-fit strip 71 can sequentially pass through the through holes of the double-sided adhesive tape 73, the flexible input screen 10 and the elastic gasket 74 and are finally clamped in the positioning holes 721 of the second press-fit strip 72, so that the opposite end of the flexible input screen 10 is clamped and fixed on the pull rod 70.

In other embodiments, the flexible input screen 10 may be adhered to the second pressing strip 72 by a double-sided adhesive tape 73, and the elastic pad 74 is disposed between the flexible input screen 10 and the first pressing strip 71.

As shown in fig. 7 and 8, when assembling a portion of the flexible keyboard 100, first, the driving member 32, the battery 35 and the main board 31 are respectively mounted in the driving member positioning slot 3311, the battery positioning slot 3312 and the main board positioning slot 3313 of the reel seat 33; then, the first connector 361 of the conductive slip ring 36 is inserted into a corresponding connector of the motherboard 31 after passing through the through hole 3333, and the conductive slip ring 36 is clamped in the through hole 3333, and the second connector 326 of the conductive slip ring 36 is exposed; then, the inner rings of the two bearings 37 are respectively sleeved and fixed on the first rotating shaft 3322 and the second rotating shaft 3332; finally, one end of the flexible input screen 10 is connected to the reel seat 33 through the pressing plate 12, and the flexible input screen 10 and the main board 31 are electrically connected through the flexible circuit board 103. Thus, one end of the flexible input screen 10 is disposed on the roll 30, and the assembly of the components inside the roll 30 is completed.

Further, as shown in fig. 3, after the components in the reel 30 are assembled, the driving shaft 325 passes through the end surface of the first rotating shaft 3322 along the axial direction of the reel 30, the end surface of the reel 30 close to the driving shaft 325 is provided with the key circuit board 40, and the key circuit board 40 is fixed to the end surface of the first rotating shaft 3322 by screws.

Specifically, as shown in fig. 9, the key circuit board 40 is substantially elliptical, a through hole 42 for the driving shaft 325 to pass through is formed in the middle of the key circuit board 40, and the key 41 is disposed around the through hole 42. A connection hole 43 is formed at one side of the through hole 42 on the key circuit board 40, and the screw can be screwed into the connection hole 3325 on the end surface of the first rotation shaft 3322 through the connection hole 43, so that the key circuit board 40 is fixed to the end surface of the first rotation shaft 3322. A flexible circuit board 44 for connecting the main board 31 extends from the other side of the through hole 42 on the key circuit board 40. The key circuit board 40 is further provided with positioning holes 45, and the positioning holes 45 correspond to the positioning posts 3326 on the end surface of the first rotating shaft 3322 one to one. The edge of the key circuit board 40 is further provided with a backlight source 46, and the backlight source 46 is located on one side of the key 41 far away from the through hole 42.

In this embodiment, there are two of the buttons 41, and two of the buttons 41 are axially symmetrical with respect to the through hole 42, that is, with respect to the driving shaft 325 passing through the button circuit board 40.

In other embodiments, the keys 41 may be provided as one or more keys; in other embodiments, the keys 41 may be arranged non-axially symmetrically.

Referring to fig. 10 and 11, after the flexible keyboard 100 is partially assembled as shown in fig. 7, the flexible circuit board 44 of the key circuit board 40 is electrically connected to the main board 31 through the through hole 3323 of the first rotating shaft 3322, and is positioned by the positioning post 3326 on the end surface of the first rotating shaft 3322 and the positioning hole 45, and the screw is screwed into the connecting hole 3325 on the end surface of the first rotating shaft 3322 through the connecting hole 43, so that the key circuit board 40 is fixed to the end surface of the first rotating shaft 3322, and the driving shaft 325 penetrates through the through hole 42 and protrudes out of the key circuit board 40. Then, the reel cover 34 is covered on the reel seat 33, and a plurality of screws respectively pass through the countersunk holes 3415 of the reel cover 34 and are screwed into the corresponding connecting holes 3315 of the connecting posts 3314, so that the reel cover 34 and the reel seat 33 jointly clamp the driving member 32, the battery 35 and the main board 31, thereby completing the assembly of the reel 30 and fixing the key circuit board 40 on the end surface of the reel 30.

After the driving shaft 325 is extended out of the key circuit board 40, one end of the driving shaft 325 away from the driving member 32 is connected to the housing 20 through a fixing member 50. Specifically, as shown in fig. 12, the fixing member 50 includes a connecting column 51 and connecting pieces 52 disposed at two opposite sides of the connecting column 51, the connecting column 51 is provided with a connecting hole 53, and the driving shaft 325 can be clamped in the connecting hole 53. Each connecting piece 52 is provided with a positioning hole 54 and a through hole 55, the positioning hole 54 corresponds to the two positioning columns 2134 of the first mounting portion 213, and the through hole 55 corresponds to the two connecting holes 2133 of the first mounting portion 213, so that the fixing member 50 is screwed into the first mounting portion 213.

After the assembly of the roll 30 is completed, the semi-circumference formed by the roll cover 34 and the pressing plate 12 and the arc surface of the roll base 33 form a complete circumference, and the flexible input screen 10 can be wound on the circumference.

Further, the assembled reel 30 is rotatably disposed in the housing 20. Specifically, the housing 20 includes a first housing 21 and a second housing 22 detachably covering the first housing 21, and the winding drum 30 is rotatably disposed in a containing cavity formed by covering the first housing 21 and the second housing 22.

As shown in fig. 4 to 6, the first housing 21 includes a first tank 211, a first mounting portion 213 provided at one end of the first tank 211, and a second mounting portion 215 provided at the opposite end of the first tank 211. The two opposite ends of the first housing 21 are respectively provided with an arc-shaped first positioning rib 214, specifically, two first positioning ribs 214 are located at the two opposite ends in the first groove body 211, and each first positioning rib 214 is provided with an arc-shaped first positioning groove 2141. The space between the two second positioning ribs 214 in the first groove body 211 is an accommodating groove 217, and the accommodating groove 217 is used for accommodating the winding drum 30. The first mounting portion 213 is located at one end of one of the first positioning ribs 214 back to the first positioning groove 2141 thereof, and the second mounting portion 215 is located at one end of the other first positioning rib 214 back to the first positioning groove 2141 thereof. A first through groove 216 is formed in a side wall of the first housing 21 for the flexible input screen 10 to pass through, specifically, the first through groove 216 is located between the two first positioning ribs 214, and the first through groove 216 is communicated with the accommodating groove 217. The first housing 21 is further provided with a plurality of mortise holes 218 and a plurality of slots 219 with protrusions, specifically, the mortise holes 218 and the slots 219 are disposed on two opposite side surfaces of the receiving slot 217. Two bosses 2115 are arranged on the outer wall of the first housing 21 back to the accommodating groove 217, and the two bosses 2115 are arranged along the length direction of the first housing 21.

As shown in fig. 13, the first mounting portion 213 includes an end plate 2131 disposed at an end away from the receiving slot 217, and the end plate 2131 protrudes out of the first slot body 211. A positioning table 2132 is convexly arranged on one side of the end plate 2131 facing the accommodating groove 217. A sinking groove is formed in the middle of the end plate 2131, a mounting hole penetrating through the first mounting portion 213 is formed in the sinking groove, and the key cap 60 is slidably mounted in the mounting hole. Two waist-shaped embedding holes are further formed in the sinking groove of the end plate 2131 and used for embedding a light guide column 80, and the two embedding holes are located on the upper side and the lower side opposite to the mounting hole. The first mounting portion 213 has two opposite sides respectively formed with a connecting hole 2133, and the first mounting portion 213 further has a positioning column 2134 at an edge of each connecting hole 2133.

As shown in fig. 14, the second mounting portion 215 includes an end plate 2151 disposed at an end away from the receiving groove 217, and the end plate 2151 protrudes from the first groove body 211. Connecting columns 2152 are arranged at two opposite ends of the end plate 2151, and each connecting column 2152 is axially provided with a connecting hole 2153. The end plate 2151, the first positioning rib 214 and the first groove body 211 form a placement groove, the charging circuit board 38 is installed in the placement groove, and the charging circuit board 38 can be fixed in the placement groove in a threaded connection or a clamping connection mode. The charging circuit board 38 is provided with a USB interface 381 and a connector for connecting the conductive slip ring 36. The end plate 2151 is provided with a square hole 2154 at a position corresponding to the USB interface 381. Specifically, in this embodiment, the charging circuit board 38 is fixed in the placement groove by a screw, and the charging circuit board 38 is also provided with other components and antennas.

In this application, when the battery 35 needs to be charged, a charging plug is inserted into the USB interface 381 of the charging circuit board 38 through the through hole 2154 on the end plate 2151 of the first housing 21, and the USB interface 381 charges the battery 35 through the charging circuit board 38, the second connector 362, the conductive slip ring 36, the first connector 361, and the main board 31.

As shown in fig. 4 to 6, the second housing 22 includes a second groove 221, a first connection portion 223 provided at one end of the second groove 221, and a second connection portion 225 provided at the opposite end of the second groove 221. The first connecting portion 223 is used for covering the first mounting portion 213, and the second connecting portion 225 is used for covering the second mounting portion 215. The two opposite ends of the second housing 22 are respectively provided with an arc-shaped second positioning rib 224, and the two second positioning ribs 224 correspond to the two first positioning ribs 214. Specifically, the two second positioning ribs 224 are located at two opposite ends in the second groove 221, and each second positioning rib 224 is provided with an arc-shaped second positioning groove 2241. A space between the two second positioning ribs 214 in the second groove body 221 is an accommodating groove 227, the accommodating groove 227 and the accommodating groove 217 in the first groove body 211 form an accommodating cavity, and the winding drum 30 is rotatably disposed in the accommodating cavity. The first connecting portion 223 is located at one end of one of the second positioning ribs 224 back to the second positioning slot 2241, and the second connecting portion 225 is located at one end of the other second positioning rib 224 back to the second positioning slot 2241. Two opposite side surfaces of the second housing 22 are respectively provided with a plurality of tenons 228 corresponding to the mortise 218 of the first housing 21 and a plurality of elastic hooks 229 corresponding to the slots 219 of the first housing 21. Two connecting blocks 2233 corresponding to the connecting holes 2133 of the first mounting portion 213 are disposed on two opposite sides of the first connecting portion 223, and each connecting block 2233 is provided with a through hole 2235; two connecting ports 2252 are formed on two opposite sides of the second connecting portion 225 corresponding to the connecting posts 2152 of the second mounting portion 215, and a through hole is formed on a bottom surface of each of the connecting ports 2252.

When the second housing 22 is covered on the first housing 21, the connecting column 2152 and the connecting port 2252, which are correspondingly disposed on the second mounting portion 215 and the second connecting portion 225, can play a role of preventing reverse connection.

Referring to fig. 2, 15 and 16, the assembly of the spool 30 into the housing 20 is as follows:

first, the end of the flexible input screen 100 away from the winding drum 30 is inserted into the first through groove 216 from the first housing 21 and clamped and fixed on the pull rod 70.

Then, the reel 30 is placed in the first housing 21, and the reel 30 is rotatably accommodated in the accommodating groove 217. The bearings 37 at the two ends of the winding drum 30 are respectively installed in the first positioning grooves 2141 of the first positioning ribs 214 at the two opposite ends of the accommodating groove 217, the end face of one end of the bearing 37 far away from the baffle abuts against the first positioning ribs 214, the end faces at the two opposite ends of the winding drum 30 are located at one side of the first positioning ribs 214 far away from the accommodating groove 217, the key circuit board 40 is arranged on one end face of the winding drum 30 and is rotatably accommodated in the first installation part 213, and the conductive slip ring 36 in the through hole 3333 at the other end of the winding drum 30 is electrically connected with the charging circuit board 38 in the second installation part 215 through the second connector 362. The fixing member 50 sleeved on the end of the driving shaft 325 is located in the first installation portion 213, and the positioning posts 2134 of the first installation portion 213 are respectively clamped in the positioning holes 54 of the fixing member 50, so as to prevent the fixing member 50 from moving in the axial direction of the driving shaft 325.

Finally, the second housing 22 is covered on the first housing 21, the first positioning grooves 2141 of the two first positioning ribs 214 of the first housing 21 and the second positioning grooves 2241 of the two second positioning ribs 224 of the second housing 22 jointly enclose a bearing seat capable of clamping the two bearings 37, and the outer ring of the bearing 37 abuts against the annular groove surface of the bearing seat. The first connecting portion 223 covers the first mounting portion 213, the second connecting portion 225 covers the second mounting portion 215, the connecting post 2152 of the second mounting portion 215 is inserted into the connecting port 2252 of the second connecting portion 225, and a plurality of screws respectively penetrate through a through hole of the connecting port 2252 and a through hole 2235 of the connecting block 2233 and are screwed to the connecting hole 2153 of the connecting post 2152 and the connecting hole 2133 of the first mounting portion 213.

The screw passing through the through hole 2235 passes through the through hole 55 of the fixing member 50 and then is screwed into the connecting hole 2133 of the first mounting portion 213, and the connecting block 2233 of the second housing 22 is pressed against the fixing piece of the fixing member 50, so that the fixing member 50 is fixed in the first mounting portion 213 of the first housing 21.

In summary, in the winding device 200, two opposite ends of the winding drum 30 and two opposite ends of the housing 20 are connected by one bearing 37, respectively, and the winding drum 30 can rotate in the housing 20 by the two bearings 37. The flexible input screen 10 of the flexible keyboard 100 is disposed on the winding drum 30, and the flexible input screen 10 can be wound in the housing 20 along with the rotation of the winding drum 30, so as to be convenient for a user to carry.

Further, the winding device 200 further includes a key assembly disposed at one end of the housing 20, and the key assembly is used for controlling the rotation of the winding drum 30. Specifically, the key assembly set up in first casing 21 one end in first installation department 213, the key assembly including rotationally accept in first installation department 213 key circuit board 40, through triggering on the key circuit board 40 button 41 can control driving piece 32's rotation, and then control the rotation of reel 30.

Referring to fig. 3, 17 and 18, the key assembly further includes a key cap 60 movably disposed on the housing 20. Specifically, the key cap 60 is movably disposed at an end portion of the first housing 21 near one end of the first mounting portion 213, and the key cap 60 is disposed in a middle mounting hole of the end plate 2131.

The key cap 60 includes a pressing portion 61 and a key cap main body 62 protruding from the pressing portion 61 toward the key circuit board 40, and the key cap main body 62 is slidably disposed in the first housing 21 along the axial direction of the winding drum 30. The key cap 60 is provided with an accommodating cavity 63 along the axial direction of the winding drum 30, and the accommodating cavity 63 is provided in the middle of the key cap main body 62. The key cap body 62 is further provided with a guide groove 621 communicating with the accommodating cavity 63, and a convex strip 622 is disposed on the outer peripheral surface of the key cap body 62. In this embodiment, the protruding strips 622 are disposed on the outer peripheral surfaces of the upper and lower sides of the keycap body 62.

Further, the key assembly further includes an elastic member for forcing the key cap 60 to return, pressing the key cap 60 elastically deforms the elastic member, and the elastic member elastically returns to drive the key cap 60 to return after releasing the key cap 60. In this embodiment, the elastic member is a spring 65.

The fixing element 50 is located between the key circuit board 40 and the key cap main body 62, the elastic element elastically abuts against between the key cap main body 62 and the fixing element 50, one end of the elastic element is accommodated in the accommodating cavity 63, and the other end of the elastic element abuts against the fixing element 50.

Preferably, the pressing portion 61 and/or the fixing member 50 may be provided with an auxiliary structure for attaching the elastic member. In this embodiment, as shown in fig. 3 and 17, a convex pillar 611 is convexly disposed in the accommodating cavity 63 of the pressing portion 61, and the elastic member, that is, one end of the spring 65 accommodated in the accommodating cavity 63 can be sleeved on the convex pillar 611, so as to ensure that the spring 65 is more firmly mounted.

In other embodiments, a notch may be formed in the connecting piece 52 on each of the two opposite sides of the fixing element 50 near the connecting column 51, and one end of the spring 65 abutting against the fixing element 50 may be clamped into the notches on the two sides, so as to assist the installation of the spring 65.

As shown in fig. 3 and 16, the fixing member 50 can be accommodated in a space formed by the guide groove 621 and the accommodating chamber 63. The guide groove 621 is longer than the width of the fixing member 50 along the axial direction of the reel 30, and the key cap 60 can slide relative to the key circuit board.

Thus, in the present application, pressing and releasing the key cap 60 enables the key cap 60 to contact and separate from the key 41 for activating the key 41.

Specifically, when the pressing portion 61 is pressed, the key cap body 62 slides toward the key circuit board 40, and the key cap body 62 contacts the key 41; when the pressing part 61 is released, the keycap main body 62 slides away from the key circuit board 40 under the elastic force of the elastic member, and the keycap main body 62 is separated from the key 41.

As shown in fig. 13, when the key cap main body 62 slides away from the key circuit board 40, the protruding strip 622 on the key cap main body 62 can abut against the housing 20, and the key cap 60 stops sliding, preventing the key cap 60 from separating from the housing 20. Specifically, after the key cap main body 62 is separated from the key 41 by the elastic force of the elastic member, the key cap 60 can still slide some distance away from the key circuit board 40 until the protrusion 622 abuts against the positioning table 2132 of the end plate 2131 facing the accommodating groove 217, and the key cap 60 resets and stops sliding.

It should be noted that the elastic member has a certain pre-compression amount, that is, after the key cap 60 is reset, the elastic member still has a certain elastic deformation to provide a certain elastic force, so as to ensure that the key cap 60 is in the reset state when not pressed.

After the keycap main body 62 contacts and separates from the key 41, the key 41 can be triggered, so that the key control board 40 generates a control signal and transmits the control signal to the main board 31, and the main board 31 controls the driving element 32 to rotate according to the received control signal.

Specifically, in some embodiments, when the driving element 32 is in a stopped state, pressing and releasing the pressing portion 61 can trigger the button 41 to control the driving element 32 to rotate; in other embodiments, when the driving element 32 is in a rotating state, pressing and releasing the pressing portion 61 can trigger the button 41 to control the driving element 32 to stop.

Preferably, the control logic of the driving element 32 is set to a double-click mode, that is, when the driving element 32 is in a stop state, two consecutive pressing and releasing of the pressing portion 61 can control the driving element 32 to rotate, and two consecutive pressing and releasing of the pressing portion 61 can control the driving element 32 to stop. Similarly, when the driving element 32 is in a rotating state, the pressing portion 61 is pressed and released twice continuously to control the driving element 32 to stop, and the pressing portion 61 is pressed and released twice continuously to control the driving element 32 to rotate.

In this embodiment, the control logic of the driving member 32 is set to a double-click mode, so as to prevent the key cap 60 from being touched by mistake and the driving member 32 from rotating.

Obviously, in other embodiments, the control logic of the driving member 32 can be set to other modes, such as a click mode, that is, a single pressing and releasing of the pressing portion 61 can control the driving member 32 to rotate or stop.

In this application, because the driving part 32 is fixed in the reel 30, the end of the driving shaft 325 passes through the fixing part 50 is fixed in on the casing 20, therefore, the rotation of the driving part 32 can drive the reel 30 rotates in the casing 20, the key 41 can be followed the reel 30 rotates, and the key cap main body 62 triggers behind the key 41 with the key 41 separates, can avoid the key 41 produces wearing and tearing in the rotation process, has improved the life of the key 41.

Further, as shown in fig. 3 and 17, the key assembly further includes a light guide pillar 80, and the light guide pillar 80 is embedded in the end of the casing 20 where the key cap 60 is disposed. Specifically, the light guide pillar 80 is disposed at an end portion of the first housing 21 close to the first mounting portion 213, the light guide pillar 80 is embedded in a sinking groove of the end plate 2131, and the key cap 60 is located in the light guide pillar 80.

As shown in fig. 17 and 19, the light guide bar 80 includes an annular base 81 and inlays 82 protruding from opposite sides of the base 81, one end of the key cap 60 away from the key circuit board 40 is accommodated in the base 81, the inlays 82 have shapes identical to those of two insertion holes in the sunken groove of the end plate 2131, and the inlays 82 pass through the first housing 21 and approach the key circuit board 40. The light guide pillar 80 includes a light incident surface 83, a light emitting surface 84, and a wall surface.

The light incident surface 83 corresponds to the backlight 46 on the key circuit board 40, the light emitting surface 84 is exposed at an end of the end plate 2131, and the wall surface refers to the other surface of the light guide pillar 80 except for the light incident surface 83 and the light emitting surface 84.

Preferably, in this embodiment, the light guide pillar 80 is made of transparent plastic with light guide performance, and the wall surface portion is sprayed with reflective paint.

Therefore, under the irradiation of the backlight source 46, the light emitting surface 84 can emit uniform and soft light to play a role of an indicator, so that a user can visually find the key cap 60 located in the light guiding column 80 and achieve a more attractive effect by matching with the key cap 60.

Referring to fig. 1, fig. 20a and fig. 20b, the flexible keyboard 100 further includes an outer cover 90 covering the winding device 200, the outer cover 90 includes a first sleeve 91 and a second sleeve 92 that can be overlapped with each other, and the first sleeve 91 and the second sleeve 92 are hollow cylinders. Specifically, a through groove 911 is formed in a side wall of the first sleeve 91, the through groove 911 extends along a length direction of the first sleeve 91 and penetrates through an end surface of the first sleeve 91 close to the second sleeve 92, a groove 912 is formed in one end of an inner wall of the first sleeve 91 close to the second sleeve 92, and the groove 912 corresponds to one of the bosses 2115 on the outer wall of the first housing 21. The length of the second sleeve 92 is smaller than the length of the first sleeve 91, similarly, a through groove 921 is formed in a side wall of the second sleeve 92, the through groove 921 extends along the length direction of the second sleeve 92 and penetrates through an end surface of the second sleeve 92 close to the first sleeve 91, a groove 922 is formed in one end of the second sleeve 92 close to the first sleeve 91, and the groove 922 corresponds to another boss 2115 on the outer wall of the first housing 21.

The first sleeve 91 is sleeved from one end of the rolling device 200 where the key assembly is arranged, the second sleeve 92 is sleeved from the other end of the rolling device 200 opposite to the first sleeve and is respectively fastened and fixed with the boss 2115 on the first housing 21 through the grooves 912 and 922, and the outer cover 90 can enhance the overall strength and the aesthetic property of the flexible keyboard 100.

After the first sleeve 91 and the second sleeve 92 are overlapped, the through groove 911 and the through groove 921 together form a second through groove 906 for the flexible input screen 10 to pass through, and the second through groove 906 corresponds to the first through groove 216 on the first housing 21.

Preferably, the first sleeve 91 is made of a metal material, so as to ensure that the outer sleeve 90 has sufficient strength; the second sleeve 92 is made of plastic, so that the transmission quality of the antenna signals of the main board 31 and the charging circuit board 38 arranged in the housing 20 of the winding device 200 is ensured on the premise of not affecting the overall texture of the outer sleeve 90.

As shown in fig. 20b, when the flexible keyboard 100 needs to be used, the pull rod 70 is pulled outwards to unfold the flexible input screen 10, the input area of the flexible input screen 10 is exposed, a user can perform keyboard input on the keyboard input area of the flexible input screen 10 and also can perform handwriting input on the handwriting input area through a handwriting input pen, and the flexible keyboard 100 can support multiple input modes and is convenient for the user to use.

The keyboard input area and the handwriting input area can be two different areas or the same area.

As shown in fig. 20a, after the flexible keyboard 100 is used, the key cap 60 is pressed and released to trigger the key 41, the reel 30 is controlled to rotate in the housing 20, the flexible input screen 10 is wound on the outer circumferential surface of the reel 30 until the flexible input screen 10 is completely received in the housing 20, the pull rod 70 is stopped at the notch of the second through slot 906 of the outer sleeve 90, the reel 30 is stopped from rotating, the driving member 32 is overloaded, and the main board 31 controls the driving member 32 to stop rotating.

Of course, the user can also activate the button 41 to control the driving member 32 to stop, so that the flexible input screen 10 is partially rolled up in the housing 20 and partially unfolded, and the user can input through the unfolded part of the flexible input screen 10.

It should be noted that the design structure of the key assembly can also be applied to other products or devices that require the driving member to be disposed on the central shaft, and details are not described here.

The foregoing is a preferred embodiment of the present application and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present application and these are considered to be within the scope of the present application.

Claims (17)

1. The utility model provides a button subassembly for the rotation of control a coiling mechanism, the coiling mechanism include the casing and rotationally set up in reel in the casing, set up in the reel and be used for the drive reel pivoted driving piece, its characterized in that, button subassembly includes:

   the key circuit board is fixed at the end part of the winding drum and rotates along with the winding drum, at least one key is arranged on one side of the key circuit board, which faces away from the winding drum, and the key is used for controlling the rotation of the driving piece;

   the key cap is movably arranged on the shell and corresponds to the key, the key cap is pressed to abut against the key and then released to trigger the key, and the key cap resets and is separated from the key.
2. A key assembly as recited in claim 1, wherein there are two of the keys, the two keys being axially symmetric about the drive axis of the driver.
3. The key assembly of claim 1, further comprising a resilient member for urging the key cap to return, wherein pressing the key cap elastically deforms the resilient member, and wherein releasing the key cap elastically returns the resilient member to drive the key cap to return.
4. The key assembly of claim 3, wherein the key cap has a receiving cavity along an axial direction of the barrel, one end of the elastic member is received in the receiving cavity, and the other end of the elastic member abuts against the housing.
5. The key assembly of claim 4, wherein the key cap includes a pressing portion and a key cap body protruding from the pressing portion toward the key circuit board, the key cap body is slidably disposed in the housing along an axial direction of the winding drum, the receiving cavity is opened in the key cap body, an end of the driving shaft of the driving member away from the driving member is connected to the housing through a fixing member, the fixing member is disposed between the key circuit board and the key cap body, and the elastic member elastically abuts against between the key cap body and the fixing member.
6. The key assembly of claim 5, wherein the key cap body defines a guide groove communicating with the receiving cavity, and the fixing member is received in a space defined by the guide groove and the receiving cavity.
7. The key assembly of claim 6, wherein the guide slot has an axial length along the spool that is greater than a width of the mount, the key cap being slidable relative to the key circuit board.
8. The key assembly of claim 5, wherein when the pressing portion is pressed, the key cap body slides toward the key circuit board, the key cap body contacting the key; when the pressing part is loosened, the keycap main body slides away from the key circuit board under the action of the elastic force of the elastic part, and the keycap main body is separated from the key.
9. The key assembly according to claim 5, wherein the pressing portion and/or the fixing member is provided with an auxiliary structure for mounting the elastic member.
10. The key assembly of claim 5, wherein the key cap body is provided with a rib on an outer wall thereof, the rib being capable of abutting against the housing to prevent the key cap from being separated from the housing.
11. The key assembly of any one of claims 3 to 10, wherein when the driving member is in a stop state, pressing and releasing the pressing portion triggers the key to control the driving member to rotate; when the driving piece is in a rotating state, the pressing part is pressed and released to trigger the key so as to control the driving piece to stop.
12. The key assembly of claim 11, wherein the control logic of the driving member is configured to be set to a double-click mode, wherein pressing and releasing the pressing portion twice in succession controls the driving member to rotate, and pressing and releasing the pressing portion twice in succession controls the driving member to stop.
13. The key assembly of claim 1, further comprising a light guide pillar embedded in an end of the housing where the key cap is disposed, wherein a backlight source is disposed on a side of the key circuit board facing away from the winding drum, and the light guide pillar corresponds to the backlight source.
14. The key assembly of claim 13, wherein the light guide comprises an annular base and an inlay protruding from the base, an end of the key cap away from the key circuit board is received in the base, and the inlay passes through the housing and approaches the key circuit board.
15. The key assembly of claim 13, wherein the light guiding pillar is made of transparent plastic with light guiding performance, the light guiding pillar includes a light incident surface, a light emitting surface and a wall surface, a portion of the wall surface is coated with reflective paint, and the backlight source corresponds to the light incident surface of the light guiding pillar.
16. A winding device comprising a housing, a winding drum rotatably disposed within the housing, and a key assembly according to any one of claims 1-15 for controlling rotation of the winding drum.
17. A flexible keyboard comprising a flexible input screen and a wrap-up device according to claim 16, the flexible input screen being rollable within the wrap-up device.

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