Telescopic data line conducting electricity through roller

Abstract

The utility model discloses a telescopic data line conducting electricity through a roller, which comprises a shell, a wheel core, a movable plate, a static plate and a data line, the wheel core is arranged in the shell, the data line is wound on the wheel core, and an interface of the data line extends out of the shell; the static plate is installed in the shell, the movable plate is installed on the wheel core and is opposite to the static plate, and a plurality of conducting rings are arranged on the movable plate; a plurality of roller assemblies are installed on the static plate, each roller assembly is provided with a conductive roller, and the rollers and the conductive rings are of a rolling contact structure. The roller assembly is arranged on the static plate, the roller replaces a ball, and the rolling roller and the conducting ring of the movable plate are in rolling contact for conduction, so that friction can be remarkably reduced, abrasion to the conducting ring is reduced, the service life of the conducting ring can be prolonged, cost is saved, the contact area of the roller and the conducting ring is remarkably increased, and the service life of the conducting ring is prolonged. Therefore, the conductive stability can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging devices, and in particular to a retractable data line device, such as a single pull line. Background Art

[0002] Since the retractable data cable can collect the wire into the housing to avoid scattering and entanglement, it is welcomed by many users. However, the traditional retractable data cable device usually has the following problems. Generally, a conductive ring formed by a plurality of annular conductive sheets is used on the moving plate (or the static plate), and each conductive ring needs to be fully etched with gold, which has a large area and high cost. The docking device of the static plate generally uses spring clips, spring pins, etc. to keep friction contact and conduction with the annular conductive ring at all times. When rotating, it will always generate large friction, resulting in large loss of the etched gold part on the conductive ring, which will affect the stability of conduction after long-term use. For this reason, the prior utility model patent application entitled "A retractable data cable device using ball conduction" proposed to set a ball assembly on the static plate, and the rolling ball and the conductive ring of the moving plate are in rolling contact and conduction to reduce friction and reduce wear on the conductive ring, thereby extending the service life of the conductive ring, saving costs, and improving the stability of conduction. However, the contact between the ball and the conductive ring during rolling can actually be considered as point contact, with a small contact area. At the same time, the contact area between the ball and the fixed head is also small. Therefore, the stability of conductivity is not good enough, which is not conducive to the transmission of large currents. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a retractable data cable which has a simple structure, a more reasonable design, less wear on the conductive ring, a large conductive contact area, stable conductive performance and conducts electricity through a roller.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a retractable data cable that conducts electricity through a roller, comprising a shell, a wheel core, a moving plate, a static plate and a data cable, the wheel core is installed in the shell, the data cable is wound around the wheel core and its interface extends out of the shell; the static plate is installed in the shell, the moving plate is installed on the wheel core and opposite to the static plate, and a plurality of conductive rings are arranged on the moving plate, characterized in that: a plurality of roller assemblies are installed on the static plate, the roller assembly has a conductive roller, and the roller and the conductive ring are in a rolling contact structure.

[0005] Furthermore, the roller assembly also includes a conductive brush, which is electrically connected to the static plate; a groove is provided on the conductive brush, and the roller is movably mounted in the groove to form a rotatable structure and contact the conductive brush.

[0006] Furthermore, a mounting hole is provided on the static plate, and the conductive brush comprises a brush sheet and a brush handle, and the brush handle and the brush sheet are connected as an integral structure; the brush sheet is embedded in the mounting hole, and the brush handle is fixed to the static plate by welding.

[0007] Furthermore, the shell includes an upper shell and a lower shell, which are combined and docked to form a shell; a mounting groove is provided on the bottom surface of the lower shell, and the static plate is fixed in the mounting groove through the shaft seat in the center of the lower shell; a avoidance hole is provided in the lower shell at the position aligned with the mounting hole, and the roller passes through the avoidance hole and protrudes a part above the lower shell to contact the conductive ring.

[0008] Furthermore, a fixing groove is provided on the bottom surface of the wheel core, and the moving plate is embedded and fixed in the fixing groove.

[0009] Furthermore, the surface of the conductive ring protrudes from the surface of the moving plate to form a conductive ring strip.

[0010] Furthermore, there are five conductive rings in total, each conductive ring corresponds to three groups of roller assemblies, and each group of roller assemblies is arranged at intervals of 120 degrees.

[0011] Furthermore, the brush piece has an arc-shaped groove structure and is elastic, and a portion of the roller is embedded in the arc-shaped groove and is in elastic contact with the brush piece.

[0012] The utility model provides a roller assembly on the static plate, with the roller replacing the ball, and conducts electricity through rolling contact between the rolling roller and the conductive ring of the moving plate, which can not only significantly reduce friction and reduce wear on the conductive ring, but also extend the service life of the conductive ring and save costs, and at the same time, the contact area between the roller and the conductive ring is significantly increased, thereby improving the stability of conduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional structural diagram of the utility model;

[0014] Figure 2 It is a three-dimensional structural diagram of the utility model from another angle;

[0015] Figure 3 This is an exploded view of the internal structure of the utility model;

[0016] Figure 4 This is an exploded view of the internal structure of the utility model from another angle;

[0017] Figure 5 This is the internal structure diagram of the utility model;

[0018] Figure 6 This is an internal structure diagram of the utility model from another angle.

[0019] In the figure, 11 is the upper shell, 12 is the lower shell, 14 is the mounting groove, 15 is the shaft seat, 16 is the avoidance hole, 2 is the wheel core, 21 is the fixed groove, 3 is the moving plate, 31 is the conductive ring, 4 is the static plate, 41 is the mounting hole, 5 is the roller assembly, 51 is the roller, 52 is the conductive brush, 53 is the brush sheet, 54 is the brush handle, and 6 is the data cable. DETAILED DESCRIPTION

[0020] In this embodiment, refer to Figure 1-Figure 6 The retractable data line that conducts electricity through the roller includes a housing, a wheel core 2, a moving plate 3, a static plate 4 (both the moving plate 3 and the static plate 4 are circuit boards) and a data line 6. The wheel core 2 is installed in the housing, and the data line 6 is wound around the wheel core 2 and its interface extends out of the housing; the static plate 4 is installed in the housing, and the moving plate 3 is installed on the wheel core 2 and opposite to the static plate 4; a plurality of conductive rings 31 are arranged on the moving plate 3, and a plurality of roller assemblies 5 are installed on the static plate 4. The roller assembly 5 has a conductive roller 51, and the roller 51 and the conductive ring 31 are in a rolling contact structure, and the contact and electrification are achieved by the roller 51 rolling along the surface of the conductive ring 31. Of course, the same effect can be achieved by exchanging the structures on the moving plate 3 and the static plate 4.

[0021] The roller assembly 5 also includes a conductive brush 52, which is electrically connected to the static plate 4; a groove is provided on the conductive brush 52, and the roller 51 is movably mounted in the groove to form a rotatable structure and contact with the conductive brush 52. The function of the conductive brush 52 is similar to that of a carbon brush in a motor.

[0022] A mounting hole 41 is provided on the static plate 4, and the conductive brush 52 includes a brush sheet 53 and a brush handle 54. The brush handle 54 is connected to the brush sheet 53 as an integral structure; the brush sheet 53 is embedded in the mounting hole 41, which can stabilize the structure and reduce the space required for installation, which is conducive to the lightweight of the product, and the brush handle 54 is welded and fixed to the static plate 4.

[0023] The shell includes an upper shell 11 and a lower shell 12, which are combined and connected to form a shell; a mounting groove 14 is provided on the bottom surface of the lower shell 12, and the static plate 4 is fixed in the mounting groove 14 through the shaft seat 15 in the center of the lower shell 12; an avoidance hole 16 is provided in the lower shell 12 at a position aligned with the mounting hole 41, and the roller 51 passes through the avoidance hole 16 and protrudes a part above the lower shell 12 to contact the conductive ring 31, and the mounting hole 14 and the avoidance hole 16 are in a one-to-one correspondence with the roller 51.

[0024] A fixing groove 21 is provided on the bottom surface of the wheel core 2 , and the moving plate 4 is embedded and fixed in the fixing groove 21 , which is beneficial to reducing the thickness of the product.

[0025] The surface of the conductive ring 31 protrudes from the surface of the moving plate 3 to form a conductive ring strip.

[0026] There are five conductive rings 31 in total, and each conductive ring 31 corresponds to three groups of roller assemblies 5. Each group of roller assemblies 5 is arranged at intervals of 120 degrees to maximize the stability of current transmission.

[0027] The brush sheet 53 is in an arc-shaped groove structure and is elastic. A portion of the roller 51 is embedded in the arc-shaped groove and is in elastic contact with the brush sheet 53 to maintain the stability of the electrical contact.

[0028] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A retractable data cable that conducts electricity through a roller, comprising a housing, a wheel core, a moving plate, a static plate and a data cable, wherein the wheel core is installed in the housing, the data cable is wound around the wheel core and its interface extends out of the housing; the static plate is installed in the housing, the moving plate is installed on the wheel core and opposite to the static plate, and a plurality of conductive rings are arranged on the moving plate, characterized in that: A plurality of roller assemblies are installed on the static plate. The roller assemblies have conductive rollers, and the rollers and conductive rings are in rolling contact structure.

2. The retractable data cable for conducting electricity through a roller according to claim 1, characterized in that: The roller assembly also includes a conductive brush, which is electrically connected to the static plate; a groove is arranged on the conductive brush, and the roller is movably mounted in the groove to form a rotatable structure and contact the conductive brush.

3. The retractable data cable conductively conducted by a roller according to claim 2, characterized in that: A mounting hole is arranged on the static plate, and the conductive brush comprises a brush sheet and a brush handle, and the brush handle and the brush sheet are connected as an integral structure; the brush sheet is embedded in the mounting hole, and the brush handle is welded and fixed to the static plate.

4. The retractable data cable for conducting electricity through a roller according to claim 3, characterized in that: The shell includes an upper shell and a lower shell, which are combined and connected to form a shell; a mounting groove is arranged on the bottom surface of the lower shell, and the static plate is fixed in the mounting groove through the shaft seat in the center of the lower shell; a avoidance hole is arranged in the lower shell at the position aligned with the mounting hole, and the roller passes through the avoidance hole and protrudes a part above the lower shell to contact the conductive ring.

5. The retractable data cable for conducting electricity through a roller according to claim 1, characterized in that: A fixing groove is arranged on the bottom surface of the wheel core, and the moving plate is embedded and fixed in the fixing groove.

6. The retractable data cable for conducting electricity through a roller according to claim 1, characterized in that: The surface of the conductive ring protrudes from the surface of the moving plate to form a conductive ring strip.

7. The retractable data cable for conducting electricity through a roller according to claim 1, characterized in that: There are five conductive rings in total, each conductive ring corresponds to three groups of roller assemblies, and each group of roller assemblies is arranged at intervals of 120 degrees.

8. The retractable data cable for conducting electricity through a roller according to claim 3, characterized in that: The brush piece is in an arc-shaped groove structure and is elastic, and a portion of the roller is embedded in the arc-shaped groove and is in elastic contact with the brush piece.

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