CN110829103A

CN110829103A - Data line and manufacturing method thereof

Info

Publication number: CN110829103A
Application number: CN201810902966.2A
Authority: CN
Inventors: 高园; 黎安; 黄忠喜; 周建坤
Original assignee: Taike Electronics (dongguan) Co Ltd; Tyco Electronics Shanghai Co Ltd
Current assignee: Taike Electronics (dongguan) Co Ltd; Tyco Electronics Shanghai Co Ltd
Priority date: 2018-08-09
Filing date: 2018-08-09
Publication date: 2020-02-21

Abstract

The invention discloses a data line and a method of manufacturing the same. The data line includes: a connector including a metal housing, an insulator body disposed in the metal housing, and a conductive terminal held on the insulator body; a cable, one end of which extends into the metal shell and is electrically connected to the conductive terminal; and a plastic sheath wrapped around at least a portion of the metal shell. The metal shell is coated with a layer of polymer coating on at least one part of the outer surface of the metal shell combined with the plastic sheath, and the plastic sheath is formed on the metal shell in an injection molding mode and is bonded with the metal shell through the polymer coating. In the invention, the plastic sheath is firmly adhered to the metal shell through the polymer coating coated on the outer surface of the metal shell, so that the adhesive force between the plastic sheath and the metal shell is enhanced, a gap is not easy to appear between the plastic sheath and the metal shell, and the sealing performance of the data line is improved.

Description

Data line and manufacturing method thereof

Technical Field

The present invention relates to a data line and a method of manufacturing the same.

Background

Existing data lines, such as USB data lines or HDMI data lines, typically include a cable and a connector connected to an end of the cable. The connector can mate with a corresponding connector on an electronic device, thereby electrically connecting one electronic device to another, for example, connecting a cell phone to a computer. Typically, the connector includes a metal housing (e.g., iron shell), a dielectric body, and conductive terminals. The insulative housing is received in the metal shell and the conductive terminals are retained on the insulative housing. The end of the cable extends into the metal shell and is electrically connected with the conductive terminal.

In order to improve the sealing performance of the data cable, it is generally necessary to form a plastic sheath on the metal shell of the connector and a portion of the cable, so as to seal the joint portion of the cable and the metal shell in the plastic sheath. The plastic sheath is generally made of thermoplastic, and therefore, the coefficient of thermal expansion of the plastic sheath is not consistent with that of the metal housing, and there is little adhesion between the plastic and the metal, which results in a gap easily occurring between the plastic sheath and the metal housing, reducing the sealability of the data line.

In order to improve the sealing performance of the data line, in the prior art, a double-sided adhesive tape is firstly adhered to the outer surface of the metal shell, and then a plastic sheath is formed on the metal shell by injection molding. The plastic jacket may be attached to the metal housing by double sided adhesive. However, the double-sided adhesive tape has poor temperature resistance, the bonding force after injection molding is still insufficient, gaps can be reduced to a certain degree, and the high fraction defective still exists. In addition, the double-sided adhesive tape contains a plurality of reinforced fibers, which are easily adhered to the outer surface of the plastic sheath during the injection molding process, resulting in poor appearance.

Disclosure of Invention

An object of the present invention is to solve at least one of the above problems and disadvantages in the prior art.

According to an aspect of the present invention, there is provided a data line including: a connector including a metal housing, an insulator body disposed in the metal housing, and a conductive terminal held on the insulator body; a cable having one end extended into the metal housing and electrically connected to the conductive terminal; and a plastic sheath wrapped around at least a portion of the metal housing. The plastic sheath is formed on the metal shell in an injection molding mode and is bonded with the metal shell through the polymer coating.

According to an exemplary embodiment of the invention, the polymeric coating comprises at least polyvinyl chloride, polyurethane and acrylate.

According to another exemplary embodiment of the present invention, the polymer coating layer is formed of a mixed solution coated on the outer surface of the metal case, the mixed solution having solutes including at least polyvinyl chloride, polyurethane, and acrylate, and a solvent including at least methyl ethyl ketone, dimethyl ketone, and ethyl acetate.

According to another exemplary embodiment of the present invention, the mixed solution includes 1 to 5% by weight of polyvinyl chloride, 5% to 10% by weight of polyurethane, 5 to 10% by weight of acrylate, 50 to 75% by weight of methyl ethyl ketone, 10 to 20% by weight of dimethyl ketone, and 10 to 20% by weight of ethyl acetate.

According to another exemplary embodiment of the invention, the metal shell comprises a main body in which the insulating body is housed and a crimp portion crimped onto the insulating sheath of the cable.

According to another exemplary embodiment of the present invention, the polymer coating layer is formed on at least a portion of an outer surface of the main body portion of the metal housing.

According to another exemplary embodiment of the present invention, the polymer coating layer is formed on at least a part of an outer surface of the crimping part of the metal shell.

According to another exemplary embodiment of the present invention, the thickness of the polymer coating layer is in a range of 1 micron to 100 microns.

According to another exemplary embodiment of the present invention, the data line is a USB data line or an HDMI data line, and the connector is a USB connector or an HDMI connector.

According to another aspect of the present invention, there is provided a method of manufacturing the aforementioned data line, comprising the steps of:

s100: coating a polymer coating on at least one part of the outer surface of the metal shell combined with the plastic sheath; and

s200: the plastic sheath is injection molded on the metal shell,

the plastic sheath is bonded with the metal shell through the polymer coating.

According to another exemplary embodiment of the present invention, the step S100 includes:

s110: coating the mixed solution on the outer surface of the metal housing;

s120: and (3) placing the metal shell coated with the mixed solution at normal temperature for a preset time to volatilize the solvent, so as to obtain a dry polymer coating.

In each of the foregoing exemplary embodiments according to the present invention, the plastic sheath is firmly adhered to the metal housing through the polymer coating layer coated on the outer surface of the metal housing, so that the adhesion between the plastic sheath and the metal housing is enhanced, a gap is not easily formed between the plastic sheath and the metal housing, and the sealing performance of the data line is improved.

Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.

Drawings

FIG. 1 shows a cross-sectional view of a connector for a data line according to an example embodiment of the invention;

FIG. 2 shows a schematic view of a plastic boot molded over the connector of FIG. 1;

FIG. 3 shows a cross-sectional view of a connector for a data line according to another example embodiment of the present invention;

fig. 4 shows a schematic view of a plastic boot molded over the connector shown in fig. 3.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.

According to one general technical concept of the present invention, there is provided a data line including: a connector including a metal housing, an insulator body disposed in the metal housing, and a conductive terminal held on the insulator body; a cable having one end extended into the metal housing and electrically connected to the conductive terminal; and a plastic sheath wrapped around at least a portion of the metal housing. The plastic sheath is formed on the metal shell in an injection molding mode and is bonded with the metal shell through the polymer coating.

According to another general technical concept of the present invention, there is provided a method of manufacturing the aforementioned data line, including the steps of: coating a polymer coating on at least one part of the outer surface of the metal shell combined with the plastic sheath; and the plastic sheath is formed on the metal shell in an injection molding mode and is bonded with the metal shell through the polymer coating.

FIG. 1 shows a cross-sectional view of a connector for a data line according to an example embodiment of the invention; fig. 2 shows a schematic view of a plastic boot 500 molded over the connector shown in fig. 1.

As shown in fig. 1 and 2, in the illustrated embodiment, the data line mainly includes: a connector and a cable 200. The connector includes a metal shell 100, an insulative body 300 disposed in the metal shell 100, and conductive terminals (not shown) held on the insulative body 300. One end of the cable 200 extends into the metal housing 100 and is electrically connected to the conductive terminal. The plastic sheath 500 is wrapped around at least a portion of the metal housing 100.

As shown in fig. 1 and 2, in the illustrated embodiment, at least a portion of the outer surface of the metal housing 100 combined with the plastic sheath 500 is coated with a polymer coating 400. The plastic sheath 500 is formed on the metal housing 100 by injection molding, and is bonded to the metal housing 100 through the polymer coating 400.

In an exemplary embodiment of the present invention, the polymer coating 400 at least comprises polyvinyl chloride, polyurethane and acrylate.

In an exemplary embodiment of the present invention, the polymer coating layer 400 may be formed of a mixed solution coated on the outer surface of the metal casing 100, the mixed solution having a solute including at least polyvinyl chloride, polyurethane, and acrylate, and a solvent including at least methyl ethyl ketone, dimethyl ketone, and ethyl acetate.

In an exemplary embodiment of the present invention, the aforementioned mixed solution comprises 1 to 5% by weight of polyvinyl chloride, 5 to 10% by weight of polyurethane, 5 to 10% by weight of acrylate, 50 to 75% by weight of methyl ethyl ketone, 10 to 20% by weight of dimethyl ketone, and 10 to 20% by weight of ethyl acetate.

As shown in fig. 1 and 2, in the illustrated embodiment, the metal shell 100 mainly includes a main body portion 110 and a crimping portion 120. The insulating body 300 is accommodated in the main body 110, and the crimp part 120 is crimped onto the insulating sheath of the cable 200.

As shown in fig. 1 and 2, in the illustrated embodiment, a polymer coating layer 400 is formed on at least a portion of an outer surface of the main body portion 110 of the metal housing 100. The polymer coating 400 is not formed on the pressure-bonding section 120 of the metal case 100.

In an exemplary embodiment of the invention, the thickness of the polymeric coating 400 is in the range of 1 micron to 100 microns.

In an exemplary embodiment of the present invention, the data line may be a USB data line or an HDMI data line, and the connector may be a USB connector or an HDMI connector.

FIG. 3 shows a cross-sectional view of a connector for a data line according to another example embodiment of the present invention; fig. 4 shows a schematic view of a plastic boot 500 molded over the connector shown in fig. 3.

In the embodiment shown in fig. 3 and 4, the polymer coating 400 is formed on the outer surfaces of the main body 110 and the pressure-bonding part 120 of the metal shell 100, that is, the polymer coating 400 is formed on the entire outer surface of the metal shell 100 and the plastic sheath 500. Otherwise, the embodiment shown in fig. 3 and 4 is substantially the same as the embodiment shown in fig. 1 and 2.

In an exemplary embodiment of the present invention, there is also disclosed a method of manufacturing the aforementioned data line, comprising the steps of:

s100: a polymer coating layer 400 is coated on at least a portion of the outer surface of the metal case 100 combined with the plastic sheath 500; and

s200: the plastic sheath 500 is injection molded on the metal housing 100.

In an exemplary embodiment of the present invention, the aforementioned polymer coating layer 400 is formed of a mixed solution coated on the outer surface of the metal casing 100, the solute of the mixed solution including at least polyvinyl chloride, polyurethane, and acrylate, and the solvent of the mixed solution including at least methyl ethyl ketone, dimethyl ketone, and ethyl acetate.

In an exemplary embodiment of the present invention, the aforementioned step S100 includes:

s110: coating the mixed solution on the outer surface of the metal can 100; and

s120: the metal can 100 coated with the mixed solution is left at a normal temperature for a predetermined time to volatilize the solvent, thereby obtaining a dried polymer coating layer 400.

In an exemplary embodiment of the present invention, the predetermined time may be 20 to 50 seconds, for example, 30 seconds.

It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.

Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of preferred embodiments of the present invention and should not be construed as limiting the invention.

Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any reference signs in the claims shall not be construed as limiting the scope of the invention.

Claims

1. A data line, comprising:

a connector including a metal housing (100), an insulating body (300) provided in the metal housing (100), and a conductive terminal held on the insulating body (300);

a cable (200) having one end extended into the metal housing (100) and electrically connected to the conductive terminal; and

a plastic sheath (500) wrapped over at least a portion of the metal housing (100),

the method is characterized in that:

the plastic sheath is characterized in that at least one part of the outer surface of the metal shell (100) combined with the plastic sheath (500) is coated with a layer of polymer coating (400), the plastic sheath (500) is formed on the metal shell (100) in an injection molding mode, and is bonded with the metal shell (100) through the polymer coating (400).

2. The data line of claim 1, wherein: the polymer coating (400) at least comprises polyvinyl chloride, polyurethane and acrylate.

3. The data line of claim 1, wherein:

the polymer coating layer (400) is formed of a mixed solution coated on the outer surface of the metal case (100), the solute of the mixed solution at least contains polyvinyl chloride, polyurethane and acrylate, and the solvent of the mixed solution at least contains methyl ethyl ketone, dimethyl ketone and ethyl acetate.

4. The data line of claim 3, wherein:

the mixed solution comprises 1-5 wt% of polyvinyl chloride, 5-10 wt% of polyurethane, 5-10 wt% of acrylate, 50-75 wt% of methyl ethyl ketone, 10-20 wt% of dimethyl ketone and 10-20 wt% of ethyl acetate.

5. The data line of claim 1, wherein:

the metal shell (100) comprises a main body (110) and a crimp portion (120), the insulating body (300) being housed in the main body (110), the crimp portion (120) being crimped onto an insulating sheath of the cable (200).

6. The data line of claim 5, wherein:

the polymer coating layer (400) is formed on at least a part of the outer surface of the main body (110) of the metal case (100).

7. The data line of claim 6, wherein:

the polymer coating (400) is formed on at least a part of an outer surface of the pressure-bonding section (120) of the metal case (100).

8. The data line of claim 1, wherein: the polymeric coating (400) has a thickness in the range of 1 micron to 100 microns.

9. The data line of claim 1, wherein:

the data line is a USB data line or an HDMI data line, and the connector is a USB connector or an HDMI connector.

10. A method of manufacturing the data line of claim 1, comprising the steps of:

s100: coating a polymer coating (400) on at least a part of the outer surface of the metal shell (100) combined with the plastic sheath (500); and

s200: injection molding the plastic sheath (500) on the metal housing (100),

the plastic sheath (500) is bonded with the metal shell (100) through the polymer coating (400).

11. The method of claim 10, wherein: the polymer coating (400) at least comprises polyvinyl chloride, polyurethane and acrylate.

12. The method of claim 10, wherein:

13. The method of claim 12, wherein:

14. The method according to claim 13, wherein the step S100 comprises:

s110: coating the mixed solution on an outer surface of the metal housing (100);

s120: the metal case (100) coated with the mixed solution is left at normal temperature for a predetermined time to volatilize the solvent, thereby obtaining a dried polymer coating (400).

15. The method of claim 10, wherein:

16. The method of claim 15, wherein:

17. The method of claim 16, wherein:

18. The method of claim 10, wherein: the polymeric coating (400) has a thickness in the range of 1 micron to 100 microns.

19. The method of claim 10, wherein: