A retractable data cable connector

Abstract

The utility model provides a kind of telescopic data line connector, including main casing, main casing is by lower casing and upper casing buckling joint constitutes, and rotating installation is had around the wire seat between lower casing and upper casing, the side of lower casing is provided with data line import and export, the bottom of upper casing is installed with contact seat, eight contact pins are installed in contact seat bottom side, the center of contact seat is provided with center hole, and eight contact pins are divided into two groups, and located center hole two sides;Two groups of contact pins close to center hole are protocol pins;The top of around the wire seat is fixedly installed with circuit board, the top of circuit board is provided with the contact copper ring connected with contact pin.This utility model increases the physical contact area and conductive path by increasing the contact pin of contact seat from traditional 4 pins to 8 pins, effectively improves the current carrying capacity of the whole contact connection structure, so that it can safely and stably transmit the high current required by modern fast charging protocol.

Description

Technical Field

[0001] This utility model belongs to the field of data cable technology, and more specifically, it relates to a retractable data cable connector. Background Technology

[0002] A retractable data cable connector is a portable device that integrates a winding mechanism and data cable within a housing. It utilizes a built-in spring to quickly wind up the data cable, solving the problem of cable tangling. It is mainly available in unidirectional and bidirectional winding forms. The core structure of a unidirectional retractable data cable connector includes a contact base fixed to the housing, a main board, and a circular conductive copper ring that rotates with the spool. This conductive copper ring is connected to an elastic connector on the contact base via a sliding contact method, thus maintaining the connection between the spool and the main board during rotation. Currently, the contact base of this type of unidirectional retractable data cable connector on the market generally only has 4 contact pins.

[0003] However, this 4-pin contact structure has significant drawbacks: the limited number of pins and physical contact area result in insufficient current carrying capacity, making it difficult to safely and stably transmit the high current required by modern fast charging protocols. Therefore, this paper studies and improves upon the existing structure and its shortcomings, providing a retractable data cable connector to achieve greater practical value. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a retractable data cable connector, which is achieved by the following specific technical means:

[0005] A retractable data cable connector includes a main housing, which is formed by a lower housing and an upper housing fastened together. A winding seat is rotatably mounted between the lower housing and the upper housing. A data cable inlet and outlet are provided on one side of the lower housing. A contact seat is installed at the bottom of the upper housing. Eight contact pins are installed on the bottom side of the contact seat. A central hole is provided in the center of the contact seat. The eight contact pins are divided into two groups and located on both sides of the central hole to ensure left-right weight balance and smoother operation during data cable extension, retraction, and rotation. The two groups of contact pins near the central hole are protocol pins. A circuit board is fixedly mounted on the top of the winding seat. A contact copper ring connected to the contact pins is provided on the top of the circuit board.

[0006] Furthermore, the top of the upper housing is equipped with three sets of wiring ports, allowing users to select the appropriate wiring port for wiring based on the actual installation situation.

[0007] Furthermore, a central shaft is provided at the center of the lower housing, and the top end of the central shaft passes through the winding seat, the circuit board and the contact seat in sequence, and is connected to the upper housing.

[0008] Furthermore, a winding ring is provided on the bottom side of the winding base. The winding ring is coaxially arranged with the central shaft, and a spring is installed between the two. A wire insertion port for data cables to pass through is provided on one side of the winding ring.

[0009] Furthermore, multiple sets of fixing posts are provided at the bottom of the lower housing.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] By increasing the number of contact pins on the contact base from the traditional 4 to 8, and symmetrically distributing them in two groups on both sides of the central hole, the physical contact area and conductive path are significantly increased. This effectively enhances the current carrying capacity of the entire contact connection structure, enabling it to safely and stably transmit the high current required by modern fast charging protocols. This solves the bottleneck, heat generation, and safety hazards caused by the limited number of pins and contact area in existing products. Furthermore, this symmetrical layout optimizes the dynamic balance of rotating components, ensuring the smooth and stable rotation of the winding base and top circuit board during repeated extension and retraction of the data cable. This reduces vibration and wear, improving product reliability and lifespan. Simultaneously, the added pins employ a dual-protocol pin design. Compared to the common single-protocol pin solution, this not only provides redundant paths, effectively distributing contact pressure and wear on the protocol signal channel and significantly extending the protocol contact lifespan, but also enhances the stability and reliability of protocol communication, ensuring a continuous and stable fast charging experience for all devices within the protocol compatibility range. In addition, the three sets of wiring ports on the upper housing provide flexible installation options, enhancing the product's adaptability to different usage scenarios and user habits. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 .

[0014] Figure 3 This is a structural disassembly diagram of the present invention. Figure 1 .

[0015] Figure 4 This is a structural disassembly diagram of the present invention. Figure 2 .

[0016] Figure 5 This is a schematic diagram showing the separation of the contact base and the circuit board of this utility model.

[0017] Figure 6 This is a schematic diagram of the contact pin and circuit board of this utility model.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0019] 1. Lower housing; 2. Upper housing; 3. Contact base; 4. Circuit board; 5. Winding base;

[0020] 101. Data cable inlet / outlet; 102. Fixing post; 103. Central shaft; 201. Wiring port; 301. Contact pin; 401. Contact copper ring; 501. Winding ring. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] As attached Figure 1 To be continued Figure 6 As shown:

[0026] This utility model provides a retractable data cable connector, including a main housing, which is composed of a lower housing 1 and an upper housing 2 fastened together. A winding seat 5 is rotatably installed between the lower housing 1 and the upper housing 2. A data cable inlet / outlet 101 is provided on one side of the lower housing 1. A contact seat 3 is installed at the bottom of the upper housing 2. Eight contact pins 301 are installed on the bottom side of the contact seat 3. A central hole is provided in the center of the contact seat 3. The eight contact pins 301 are divided into two groups and located on both sides of the central hole. The two groups of contact pins 301 closer to the central hole are protocol pins. The eight-pin layout significantly expands the conductive contact area, completely solving the heat generation risk caused by insufficient current carrying capacity of the traditional four-pin structure, and meeting the high current transmission requirements of modern fast charging. The dual protocol pin design forms a redundant contact channel, effectively dispersing the mechanical wear of the protocol signal contacts, greatly extending the service life of the protocol interface, and ensuring the continuous stability of fast charging protocol recognition. A circuit board 4 is fixedly installed on the top of the winding seat 5. A contact copper ring 401 connected to the contact pins 301 is provided on the top of the circuit board 4.

[0027] The top of the upper housing 2 is equipped with three sets of wiring ports 201 to accommodate different wiring routes, prevent wire bending and damage, and improve installation compatibility in confined spaces (such as car center consoles and wall sockets).

[0028] The lower housing 1 has a central shaft 103 at its center. The top end of the central shaft 103 passes through the winding seat 5, the circuit board 4 and the contact seat 3 in sequence, and is connected to the upper housing 2 to eliminate contact offset during rotation and ensure the reliability of electrical connection when the data cable is repeatedly wound and unwound.

[0029] The bottom side of the winding base 5 is provided with a winding ring 501, which is coaxially arranged with the central shaft 103 and a spring is installed between them (not shown in the figure); one side of the winding ring 501 is provided with a wire insertion port for the data cable to pass through.

[0030] The bottom of the lower housing 1 is provided with multiple sets of fixing posts 102. The bottom end of the fixing post 102 is provided with mounting holes, and a threaded sleeve is fixedly installed inside the mounting hole so that it can be quickly connected with fasteners during actual installation.

[0031] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A retractable data cable connector, comprising a main housing, wherein the main housing is formed by fastening together a lower housing (1) and an upper housing (2), and a winding seat (5) is rotatably mounted between the lower housing (1) and the upper housing (2), and a data cable inlet / outlet (101) is provided on one side of the lower housing (1), characterized in that: The bottom of the upper housing (2) is equipped with a contact seat (3), and eight contact pins (301) are installed on the bottom side of the contact seat (3). The center of the contact seat (3) is provided with a central hole, and the eight contact pins (301) are divided into two groups and located on both sides of the central hole. The two groups of contact pins (301) closer to the central hole are protocol pins. The top of the winding seat (5) is fixedly equipped with a circuit board (4), and the top of the circuit board (4) is provided with a contact copper ring (401) connected to the contact pins (301).

2. The retractable data cable connector as described in claim 1, characterized in that: The top of the upper housing (2) is provided with three sets of wiring ports (201).

3. The retractable data cable connector as described in claim 1, characterized in that: The lower housing (1) has a central shaft (103) at its center. The top of the central shaft (103) passes through the winding seat (5), the circuit board (4) and the contact seat (3) in sequence, and is connected to the upper housing (2).

4. The retractable data cable connector as described in claim 3, characterized in that: The bottom side of the winding seat (5) is provided with a winding ring (501), which is coaxially arranged with the central shaft (103) and a spring is installed between them; a wire hole for data cable to pass through is provided on one side of the winding ring (501).

5. The retractable data cable connector as described in claim 1, characterized in that: Multiple sets of fixing columns (102) are provided at the bottom of the lower housing (1).

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