CN216355149U

CN216355149U - Fill flexible data line soon

Info

Publication number: CN216355149U
Application number: CN202122091573.8U
Authority: CN
Inventors: 倪文勇
Original assignee: Dongguan Jingshuncheng Electronic Technology Co ltd
Current assignee: Dongguan Jingshuncheng Electronic Technology Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-04-19
Anticipated expiration: 2031-08-31

Abstract

The utility model provides a quick-charging telescopic data line, which comprises a transmission assembly and a PC B board, wherein the PC B board is electrically connected with the transmission assembly. The transmission assembly is provided with at least 5 sliding sheets and at least one elastic sheet set, the elastic sheet set comprises at least 5 elastic sheets, the wires can still be electrically connected in the stretching process due to the design that the sliding sheets and the elastic sheets are separated, meanwhile, the elastic sheets are arranged into the elastic sheet set to help to regulate the arrangement sequence of the elastic sheets, the difficulty of manufacturing and installation is reduced, the contact performance of the elastic sheets and the sliding sheets is improved, the transmission conductivity is enhanced, the sliding sheets and the elastic sheets are correspondingly jointed and contacted one by one and correspondingly transmit a signal which at least comprises V +, V-, D +, D-and C C signals, and the transmission assembly can transmit various different signals due to the combination of more than 5 elastic sheets and the sliding sheets, wherein the control signals such as handshake protocol signals required by quick charging are realized through transmission, and the functions such as quick charging are realized.

Description

Fill flexible data line soon

[ technical field ] A method for producing a semiconductor device

The utility model relates to the field of electronic equipment accessories, in particular to a quick-charging telescopic data line.

[ background of the utility model ]

With the development of science and technology, various electronic devices have become important parts for assisting people in daily work and life, these electronic devices usually connect to external data lines to meet the requirements of power supply and data transmission, however, the interfaces of the electronic devices are not uniform, different electronic devices need to be equipped with different data line connectors, therefore, most people will have multiple data lines to meet the requirements of charging and data transmission of different devices, but too many data lines will be easy to lose, in addition, in order to meet the requirements of different use scenes, the length of the conventional data line is relatively long, so that the problem that the data line is easy to wind and knot is solved.

The internal structure of the existing telescopic data line determines that the existing telescopic data line can only transmit common power signals and data signals, and the way of realizing quick charging is only to thicken or widen metal transmission elements to meet the requirements of high voltage and high current, however, with the continuous upgrading and development of interface transmission protocols of specifications of, for example, QC3.0, PD quick charging protocol, proprietary quick charging protocol, etc., USB3.0, USB3.1, and above, etc., the way cannot meet the requirements of new quick charging technology and high-speed data transmission technology, and it is known that the new technology needs the telescopic data line to at least have the transmission capability of transmitting control signals such as handshake protocol signals.

Therefore, the conventional telescopic data line cannot meet the requirements of new fast charging and high-speed data transmission, and a fast charging telescopic data line which can realize a new fast charging technology and meet the requirements of high-speed data transmission is urgently needed to facilitate the work and life of people.

[ Utility model ] content

The utility model provides a novel quick-charging telescopic data line, aiming at solving the problem that the transmission capability of the existing telescopic data line cannot meet the technical requirements of new quick-charging and new data transmission.

The utility model provides a quick-charging telescopic data line, which comprises a transmission assembly and a PCB (printed circuit board), wherein the PCB is electrically connected with the transmission assembly, the transmission assembly is provided with at least 5 sliding sheets and at least one elastic sheet group, the elastic sheet group comprises at least 5 elastic sheets, the sliding sheets and the elastic sheets are correspondingly jointed, contacted and conducted one by one and correspondingly transmit a signal, and the signal at least comprises V +, V-, D +, D-and CC signals.

Preferably, the sliding pieces are arranged in concentric circles, the number of the elastic pieces in each group is equal to that of the sliding pieces, and the elastic pieces in each group are electrically connected with the corresponding sliding pieces.

Preferably, the transmission assembly further comprises a protective cover, the elastic sheets are arranged in the protective cover, and the ratio of the distance between the elastic sheets to the width of the protective cover ranges from 1:6 to 1: 12.

Preferably, the distance range between the elastic sheets is 0.8mm-2.0mm, and the width range of the protective cover is 8.4mm-14.0 mm.

Preferably, fill flexible data line soon still includes casing, spiral subassembly and wire rod, transmission assembly, PCB board, spiral subassembly all accomodate in the casing, wire rod one end is connected and stretches out the casing with transmission assembly electricity, and the other end is convoluteed stretch out the casing after on the spiral subassembly, the outside joint is all connected at the wire rod both ends.

Preferably, the wire coiling assembly comprises a central column, a coil spring and a wire coiling disc, the central column is arranged at the center of the inner surface of the shell, the coil spring is fixedly sleeved on the central column, the wire coiling disc is sleeved on the coil spring and the central column, the wire is coiled on the wire coiling disc, and the transmission assembly is arranged on one side, far away from the coil spring, of the wire coiling disc.

Preferably, the ratio of the diameter of the outermost edge of the winding roll to the length of the wire is in the range of 1:20 to 1: 30.

Preferably, the wire is a flat wire, the length of the wire is in the range of 0.8-1.5 m, and the diameter of the outermost edge of the winding roll is in the range of 32-60 mm.

Preferably, the ratio of the diameter of the central column to the diameter of the outermost edge of the winding roll ranges from 1:8 to 1: 16.

Preferably, fill flexible data line soon and still include and end stop mechanism, end stop mechanism includes the track and can the track relative slip end stop, the track sets up the take-up reel is close to one side of transmission assembly, end stop sets up the casing internal surface, the track includes inside and outside two tracks, the bayonet socket is seted up to two track junctions.

Compared with the prior art, the quick-charging telescopic data line has the following advantages:

1. fill flexible data line soon includes transmission assembly and PCB board, the PCB board with the transmission assembly electricity is connected, and the PCB board that sets up has promoted stability and convenience of internal component electric contact as transmission assembly's input/output signal's carrier. The transmission assembly is provided with at least 5 sliding sheets and at least one elastic sheet set, the elastic sheet set comprises at least 5 elastic sheets, the wires can still be electrically connected in the stretching process due to the design that the sliding sheets and the elastic sheets are separated, meanwhile, the elastic sheets are arranged into the elastic sheet sets, the order of arranging the elastic sheets is facilitated, the difficulty of manufacturing and installing is reduced, the contact performance of the elastic sheets and the sliding sheets can be improved due to the adoption of the multiple groups of elastic sheet sets, the transmission conductive capacity is enhanced, the sliding sheets and the elastic sheets are correspondingly jointed and contacted to conduct one by one and correspondingly transmit a signal which at least comprises V +, V-, D +, D-and CC signals, and the transmission assembly can transmit various different signals due to the combination of more than 5 elastic sheets and the sliding sheets, wherein the functions of fast charging and the like are realized by transmission.

2. The gleitbretter is the concentric circles setting, and the shape of concentric circles gleitbretter has corresponded the circular movement track that the shell fragment is relative at the gyration in-process, has guaranteed sliding contact's continuity, the shell fragment group is two sets of, and the shell fragment quantity of every group shell fragment group is unanimous with gleitbretter quantity and all is connected with corresponding gleitbretter electricity respectively, and two shell fragment group set up the transmission stability who has improved the flexible data line of fill soon, and guaranteed the equilibrium between transmission stability and the size under two sets of quantity settings, if have the shell fragment to go wrong in a set of another group can continue the good transmission of assurance signal.

3. The transmission assembly further comprises a protective cover, the elastic sheets are arranged in the protective cover, the protective cover is designed to prevent accidents such as short circuit caused by mutual contact of the elastic sheets, the protective cover is proper in size in order to enhance the utilization rate of the internal space of the telescopic data line, the proportion range of the distance between the elastic sheets to the width of the protective cover is 1:6-1:12, under the proportion, the accommodating space of the elastic sheets in the protective cover is sufficient, and the size of the protective cover is proper. In addition, the range of the distance between the control spring pieces is 0.8mm-2.0mm, the range of the width of the protective cover is 8.4mm-14.0mm, and at the moment, the accommodating space of the spring pieces in the protective cover is sufficient and the size of the protective cover is proper.

4. Fill flexible data line soon still includes casing, spiral subassembly and wire rod, transmission assembly, PCB board, spiral subassembly are all acceptd in the casing, and the casing can provide dustproof waterproof shock-proof protect function for interior subassembly. The wire is divided into two sections, wherein one section of the wire extends out of the shell after being electrically connected with the transmission assembly, the other section of the wire extends out of the shell after being electrically connected with the transmission assembly and wound on the winding assembly, two ends of the wire are connected with external connectors, and the wire, the transmission assembly and the PCB are electrically connected and matched and can be connected with and conducted with external equipment to complete necessary paths of signal transmission. And spiral subassembly rolling wire rod plays good holding and accomodates the effect for the inner space obtains the compression to retrench, high efficiency and stability when guaranteeing the use simultaneously.

5. The winding assembly comprises a central column, a coil spring and a winding roll, wherein the central column is arranged at the center of the inner surface of the shell, the coil spring is fixedly sleeved on the central column, the winding roll is sleeved on the coil spring and the central column, and the ratio of the diameter of the central column to the diameter of the outermost edge of the winding roll ranges from 1:8 to 1: 16. The head end and the tail end of the coil spring are respectively connected with the central column and the winding roll in a sleeved mode, so that the whole length and the size of the coil spring are reduced as much as possible while the winding roll provides rotary force.

6. The wire is wound on the winding roll, the proportion range of the outermost edge diameter of the winding roll to the length of the wire is 1:20-1:30, the wire with the proper length can be obtained while the size of the winding roll is guaranteed in the proportion range, the problem that the stored wire is too long or too short due to the size of the winding roll is solved, in addition, the wire is a flat wire, the length range of the wire is 0.8-1.5 m, the outermost edge diameter range of the winding roll is 32-60mm, and the volume occupied by the fast-charging telescopic data wire and the applicability of the length of the wire which can be provided are optimal in the range.

7. Fill flexible data line still including ending the stop motion, it includes the track and can to end the stop motion of track gliding, the track sets up the take-up reel is close to one side of transmission assembly, it sets up the casing internal surface to end the stop motion, the track includes inside and outside two tracks, the bayonet socket is seted up to two track junctions, and the design that ends the stop motion has made things convenient for the automatic positioning of filling flexible data line soon, is close to transmission assembly can make full use of inner space, and the track of adoption is compared in other location structure with ending the stop motion structure and has been improved life, has saved inner space, and then has reduced the whole thickness of filling flexible data line soon.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.

[ description of the drawings ]

Fig. 1 is a schematic view of the overall structure of the fast-charging telescopic data cable of the present invention.

Fig. 2 is a schematic structural diagram of a transmission assembly of the fast-charging telescopic data line of the present invention.

Fig. 3 is a schematic diagram of a partial structure of the fast-charging telescopic data line according to the present invention.

Fig. 4 is an exploded view of the fast-charging retractable data cable according to the present invention.

Fig. 5 is a schematic view of a partial structure of the fast-charging retractable data line according to the present invention.

Fig. 6 is a schematic view of a partial structure of the fast-charging retractable data line according to the present invention.

Description of reference numerals: 1. a quick-charging telescopic data line; 11. a PCB board; 12. a transmission assembly; 121. a spring sheet group; 122. sliding blades; 123. A spring plate; 124. a protective cover; 13. a wire rod; 131. a wire body; 132. a joint; 1321. an input connector; 1322. an output connector; 14. a wire winding assembly; 141. a central column; 142. a coil spring; 143. A take-up reel; 1431. a winding cavity; 1432. a through hole; 15. a stop mechanism; 151. a track; 1511. an outer rail; 1512. an inner rail; 1513. a bayonet; 152. a stop member; 16. a housing.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "first," "second," and the like as used herein are for illustrative purposes only.

Referring to fig. 1-3, a fast-charging retractable data line 1 of the present invention, in one embodiment, includes a PCB 11 and a transmission component 12 electrically connected to the PCB 11. The transmission assembly 12 includes a slide 122, a spring plate set 121, and a protective cover 124. The number of the sliding pieces 122 is at least 5, the number of the elastic piece groups 121 is at least one, and each elastic piece group 121 comprises at least 5 elastic pieces 123 corresponding to the at least 5 sliding pieces 122. The sliding pieces and the elastic pieces are correspondingly jointed, contacted and conducted one by one and correspondingly transmit a signal, the signal at least comprises V +, V-, D +, D-and CC signals, and the signal is transmitted outwards through the PCB 11.

The protective cover 124 is a grid-shaped insulator, the protective cover 124 is used for separating adjacent elastic sheets 123, and plays a role in accommodating, insulating and protecting the elastic sheets 123, and the elastic sheets 123 are accommodated in the grid-shaped protective cover 124. In order to ensure the convenience of installation and use of the elastic sheets 123 and the stability during operation, enough space needs to be provided for each elastic sheet 123, and the ratio of the distance d between the elastic sheets 123 to the width e of the protective cover 124 ranges from 1:6 to 1:12, and the ratio is preferably 1: 8.5.

In an embodiment, the transmission assembly 12 specifically includes 5 sliding pieces 122 and two elastic piece groups 121, and the number of the elastic pieces 123 included in the elastic piece groups 121 corresponds to the number of the sliding pieces 122, so that each elastic piece group 121 correspondingly includes 5 elastic pieces 123. The 5 spring strips 123 of each spring strip group 121 are respectively matched with the slide strips 122 one by one to be used for transmitting V +, V-, D +, D-and CC signals. In order to meet the requirements of small size of the internal accommodating space and stability of transmission conduction, the distance d between the elastic pieces 123 is preferably in the range of 0.8mm to 2.0mm, the distance is preferably 1.2mm, and the width e of the protection cover 124 is preferably in the range of 8.4mm to 14.0mm, and the width is preferably 10.2 mm.

Further, the sliding pieces 122 are arranged in concentric circles, and specifically, the sliding pieces 122 are circular ring-shaped sheets and are electrically connected with the PCB 11. Referring to fig. 2, in an embodiment, at least 5 sliders 122 are insulated from each other and concentrically arranged, and each slider 122 is insulated from each other and electrically connected to the PCB 11. The spring 123 and the slider 122 are generally made of a metal conductive material such as copper, aluminum, or silver, and may be made of a non-metal conductive material such as carbon fiber or graphene, preferably a metal.

In a variant embodiment, the sliding piece 122 may also be arranged in a non-planar arrangement, but on the surface of a cylinder, in the form of a column slip ring.

Furthermore, the elastic sheet sets 121 are arranged at intervals, the elastic sheet 123 has a proper elastic modulus and is preferably arc-shaped, one end of the elastic sheet 123 is pressed on the sliding sheet 122 due to elastic deformation, the sliding sheet 122 and the elastic sheet 123 are correspondingly contacted and conducted one by one to form a passage, and each corresponding contact of the sliding sheet 122 and the elastic sheet 123 transmits a signal, specifically including V +, V-, D +, D-and CC signals. In an embodiment, the number of the PCB is two, while the sliding piece 122 is electrically connected to one PCB, the elastic piece 123 is electrically connected to another PCB 11, and the transmission component 12 is electrically connected to other internal components through the two PCBs 11 to conduct electricity and transmit signals.

It can be understood that in order to conduct different kinds of signals, V + and V-for power transmission and D + and D-for data transmission may be needed, and at least 4 paths are needed, but in order to realize fast transmission of electric quantity or high-speed transmission of data signals, a control signal, i.e. a CC signal, may be needed, the control signal may be a handshake signal for controlling transmission of data and/or electric quantity, the sender may notify the receiver whether data and/or electric quantity is sent, the receiver may notify the sender whether it is ready to receive signals through the handshake signal, and the handshake signal follows a certain protocol, when the handshake signal is conducted, voltage and current transmission specified in the protocol may be realized between the sender and the receiver, and the function of providing fast charging and the function of maintaining or timely switching may be implemented to provide fast charging and the function of providing fast charging may be implemented And/or the function of high-speed data transmission is realized at the data transmission rate specified in the protocol, and the safety, stability and high efficiency of the charging process and the data transmission process are ensured.

It is understood that in other embodiments of the present invention, the arrangement sequence of the signals transmitted by the path formed by each elastic sheet 123 and the sliding sheet 122 may be adjusted according to actual situations. Meanwhile, the number of the elastic pieces 123 and the sliding pieces 122 can be adjusted according to actual use requirements, and when the number exceeds 5, redundant paths can be used for transmitting any one of V +, V-, D +, D-and CC signals and/or stdA _ SSRX and stdA _ SSTX signals.

Referring to fig. 1, 4 and 5 again, the fast-charging retractable data line 1 further includes a wire 13, a winding assembly 14 and a housing 16. The PCB 11, the winding assembly 14 and the transmission assembly 12 are accommodated in the housing 16, one end of the wire 13 is electrically connected to the transmission assembly 121 and extends out of the housing, the other end of the wire 13 is wound around the winding assembly 14 and extends out of the housing, and both ends of the wire 13 are connected to external connectors. The wire winding assembly 14 comprises a central column 141, a coil spring 142 and a wire winding roll 143.

The wire winding assembly 14 comprises a central column 141, a coil spring 142 and a wire winding roll 143. Further, the center post 141 is disposed at the center of the inner surface of the housing 16. The coil spring 142 is fixedly sleeved on the central column 141, the winding roll 143 is sleeved on the coil spring 142 and the central column 141, and the transmission assembly 121 is arranged on one side of the winding roll 143 away from the coil spring 142. Specifically, a winding cavity 1431 is provided at one side of the winding roll 143 and a through hole 1432 is provided at the middle of the winding roll 143, and the central column 141 may be prism-shaped or cylindrical, and preferably cylindrical. The central column 141 penetrates through the through hole 1432 and is sleeved in the winding roll 143, one end of the coil spring 142 is connected with the central column 141, the coil spring 142 is wound around the central column 141 in a ring shape and is integrally accommodated in the winding cavity 1431, and the other end of the coil spring is connected to the side wall of the winding cavity 1431. In order to minimize the size of the winding roll 143 and ensure a large contraction force generated during the winding of the coil spring 142, the size of the central column 141 sleeved on the coil spring 142 should not be too large or too small, and the ratio of the diameter c of the central column 141 to the diameter a of the outermost edge of the winding roll 143 is 1:8-1:16, preferably 1: 10. Specifically, in order to simultaneously satisfy the contraction efficiency, the contraction life, the small size of the winding roll 143, and the service life of the center post 141 of the coil spring 142, the outermost diameter a of the winding roll 143 is in the range of 32-60mm, preferably 48mm, the diameter c of the center post 141 is in the range of 3-8 mm, preferably 5mm,

referring to fig. 3-6, the wire 13 may be structurally divided into a wire body 131 and a joint 132, in order to enhance signal transmission capability and transmit various signals, the wire body 131 includes at least 5 wire cores (not shown) inside, and the different wire cores may transmit the same signal, and the wire cores are used for transmitting the signal. The wire 13 is divided into two sections, wherein a wire core of one section of the wire 13 is electrically connected with the sliding piece 122 of the transmission assembly 12 through the PCB 11 and then extends out of the shell 16, the other section of the wire 13 is electrically connected with the elastic piece 123 of the transmission assembly 12 through the PCB 11, a main body of the wire is wound around the winding assembly 14 and then extends out of the shell 16, it can be understood that the wire core is electrically connected with the elastic piece 123 and/or the sliding piece 122 through the PCB 11, and different wire cores are correspondingly connected with different elastic pieces 123 and/or sliding pieces 122.

Further, one end of the wire 13 is fixed to the winding reel 143 and wound on the outer sidewall of the winding chamber 1431 of the winding reel 143, and the other end thereof protrudes out of the housing 16. When the wire 13 is pulled, the winding roll 143 is driven to rotate, the winding roll 143 drives the coil spring 142 to deform and accumulate force so as to generate a rotating force for winding the wire 13, and in order to meet the requirements of the wire 13 with a smaller size and as long as possible of the winding roll 143 and ensure high efficiency of wire 13 contraction, the ratio range of the outermost edge diameter a of the winding roll 143 to the length b of the wire 13 is 1:20-1:30, and the ratio is preferably 1: 25. Specifically, the wire 13 is a flat wire, and the length b of the wire 13 is in the range of 0.8m to 1.5m, and the length is preferably 1.2 m.

It can be understood that the other end of the wire body 131 is connected with the connector 132, the connector 132 is divided into an input connector 1321 and an output connector 1322, the connector 132 can support a transmission protocol and a PD quick-charging protocol of USB3.0 or more, the output connector 1322 can be a common single-head interface, can also be a two-in-one interface, can also be an all-in-one interface, and preferably is an all-in-one interface, the types of the interfaces at least include a micro-USB interface, a Type-C interface, and a Lightning interface, it can be understood that both ends of the wire can be externally connected with connectors, and the connectors can be the same or different.

In an embodiment of the present invention, a fast charging chip (not shown) is disposed in the connector 132 and/or the PCB 11, and the fast charging chip is a chip supporting the above-mentioned PD fast charging protocol, QC fast charging protocol, and private fast charging protocol, and may also be a chip supporting the transmission protocol of USB3.0 or above, and is preferably an E-Marker chip.

Referring to fig. 4-6, the fast-charging retractable data cable 1 further includes a stopping mechanism 15 accommodated in the housing 16. The stopping mechanism 15 comprises a rail 151 and a stopping piece 152, and the rail 151 and the stopping piece 152 are respectively arranged on one side of the winding roll 143 close to the transmission assembly 12 and on the inner surface of the shell 16. The rails 151 include an outer rail 1511, and an inner rail 1512. The outer rail 1511 is arranged on the periphery of the inner rail 1512, and a bayonet 1513 is further arranged at the intersection of the outer rail 1511 and the inner rail 1512. The stop 152 slides relatively within the outer rail 1511, inner rail 1512, and bayonet 1513. The stopping member 152 has a rotation center, and the stopping member 152 can swing around the rotation center at a certain angle, so that the stopping member 152 can slide in the outer rail 1511 and the inner rail 1512 in a switching manner. In this embodiment, the rail 151 is disposed on the side of the take-up reel 143 adjacent to the transport assembly 12, and the stopper 152 is disposed on the housing 16.

Specifically, in the first state, when the wire 13 needs to be pulled out, the winding roll 143 is driven to rotate forward, the initial position of the stopping member 152 is located in the outer rail 1511, the rail 151 rotates forward along with the winding roll 143, the stopping member 152 slides relatively in the outer rail 1511, and if the initial position of the stopping member 152 is located in the inner rail 1512, the stopping member slides into the outer rail 1511 through the junction of the two rails during the forward rotation, and then slides relatively. In the second state, when the wire 13 stops being pulled and needs to be positioned, after the winding roll 143 slightly rotates by a certain angle under the action of the coil spring 142, the stopper 152 is clamped into the bayonet 1513 to brake the winding roll 143, so that the wire 13 is positioned. In the third state, when the wire 13 needs to be wound, the wire 13 is pulled slightly and then released, the stopper 152 is disengaged from the bayonet 1513 at this time and enters the inner rail 1512, the winding roll 143 rotates under the action of the coil spring 142 while winding the wire 13, and the stopper 152 slides relatively in the inner rail 1512 until the wire 13 is completely wound.

As a variant, the stop member 152 may be a ball-and-limit track structure (not shown) including a ball and a limit track, the limit track is disposed on the housing 16, the track 151 is disposed on the side of the winding reel 143 near the transmission assembly 12, and in operation, slides with the ball in the outer track 1511, the inner track 1512, and simultaneously slides in the limit track. Specifically, in the first state, when the wire 13 needs to be pulled out, the winding roll 143 is driven to rotate forward, the initial position of the balls is located in the outer rail 1511, the rail 151 rotates forward along with the winding roll 143, the balls slide relatively in the outer rail 1511, and if the initial position of the balls is located in the inner rail 1512, the balls slide relatively after sliding into the outer rail 1511 through the junction of the two rails in the forward rotation. In the second state, when the wire 13 stops being pulled and needs to be positioned, the winding roll 143 slightly rotates for a certain angle under the action of the coil spring 142, and then the ball is clamped into the bayonet 1513 to brake the winding roll 143, so that the wire 13 is positioned. In the third state, when the wire 13 needs to be wound, the wire 13 is pulled slightly and then released, the balls are disengaged from the bayonets 1513 and enter the inner rail 1512, the winding roll 143 rotates under the action of the coil spring 142 and simultaneously winds the wire 13, and the balls slide relatively in the inner rail 1512 until the wire 13 is completely wound.

As a modified example, the position of the stopper 152 is exchanged with that of the rail 151, and the stopper 152 may be provided on the winding roll 143 and the rail 151 may be provided on the housing 16.

In one embodiment of the present invention, the rail 151 and the stopper 152 are engaged to form a space with a certain height, and in order to fully utilize the space, it is preferable to dispose the stopping mechanism 15 and the transferring assembly 12 on the same side of the winding roll 143. The transferring assembly 12 can be arranged on the inner side or the outer side of the track 151, and preferably, the transferring assembly 12 is arranged on the inner side of the track 151, so that the overall size of the transferring assembly 12 is reduced, and the process difficulty of production and manufacturing is reduced.

Compared with the prior art, the quick-charging telescopic data line piece has the following advantages:

Claims

1. The utility model provides a fill flexible data line soon which characterized in that: the quick-charging telescopic data line comprises a transmission assembly and a PCB, the PCB is electrically connected with the transmission assembly, the transmission assembly is provided with at least 5 sliding sheets and at least one elastic sheet group, the elastic sheet group comprises at least 5 elastic sheets, the sliding sheets reach the elastic sheets in a one-to-one correspondence contact conduction mode and correspondingly transmit a signal, and the signal at least comprises V +, V-, D +, D-and CC signals.

2. The fast-charging telescopic data line of claim 1, wherein: the sliding pieces are arranged in concentric circles, the elastic piece groups are two groups, and the number of the elastic pieces of each group of the elastic piece groups is consistent with that of the sliding pieces and is respectively and electrically connected with the corresponding sliding pieces.

3. A fast-charging telescopic data line as claimed in claim 2, wherein: the transmission assembly further comprises a protective cover, the elastic sheets are arranged in the protective cover, and the proportion range of the distance between the elastic sheets to the width of the protective cover is 1:6-1: 12.

4. A fast-charging telescopic data line as recited in claim 3, wherein: the range of the distance between the elastic sheets is 0.8mm-2.0mm, and the range of the width of the protective cover is 8.4mm-14.0 mm.

5. The fast-charging telescopic data line of claim 1, wherein: fill flexible data line soon still includes casing, spiral subassembly and wire rod, transmission assembly, PCB board, spiral subassembly are all acceptd in the casing, wire rod one end is connected and is stretched out the casing with transmission assembly electricity, and the other end is convoluteed stretch out the casing after on the spiral subassembly, the external joint is all connected at the wire rod both ends.

6. The fast-charging telescopic data line of claim 5, wherein: the wire coiling assembly comprises a central column, a coil spring and a wire coiling disc, wherein the central column is arranged at the center of the inner surface of the shell, the coil spring is fixedly sleeved on the central column, the wire coiling disc is sleeved on the coil spring and the central column, and the wire is coiled on the wire coiling disc.

7. A fast-charging telescopic data line as recited in claim 6, wherein: the ratio of the diameter of the outermost edge of the winding roll to the length of the wire rod ranges from 1:20 to 1: 30.

8. A fast-charging telescopic data line according to claim 7, wherein: the wire is a flat wire, the length of the wire is in the range of 0.8-1.5 m, and the diameter of the outermost edge of the winding roll is in the range of 32-60 mm.

9. A fast-charging telescopic data line as recited in claim 6, wherein: the ratio range of the diameter of the central column to the diameter of the outermost edge of the winding roll is 1:8-1: 16.

10. A fast-charging telescopic data line according to any one of claims 6 to 9, wherein: fill flexible data line soon still including ending the stop motion, end the stop motion include the track with the gliding piece that ends of track, the track sets up the take-up reel is close to one side of transmission assembly, it sets up the casing internal surface to end the piece, the track includes inside and outside two tracks, the bayonet socket is seted up to two track junctions.