Universal serial bus connector

Abstract

The utility model relates to a universal serial bus connector, which comprises a plurality of conductive contact terminals which extend along the length direction of the connector and are arranged in the width direction, and a shell for supporting the plurality of contact terminals, the plurality of contact terminals includes: a contact portion disposed on a front end side in a length direction of the connector and exposed from the housing to contact with a mating connector; a mounting portion extending from the contact portion, adjacent to the rear end side, and exposed from the housing; and an extension portion connecting the contact portion and the mounting portion, in a part of the extension portion, a protruding portion and a recessed portion may be formed by a laser grooving method. The waterproof performance of the universal serial bus connector is improved because the protruding part and the recessed part formed on the terminal can prevent moisture from penetrating between the inserted housing and the terminal.

Description

Technical Field

[0001] The utility model relates to a universal serial bus (USB) connector, and more particularly to a USB connector which prevents moisture from penetrating between an inserted shell and a terminal, thereby improving waterproof performance. Background Art

[0002] Generally, a USB connector plug is connected to a communication port configured for data input and output in a terminal such as a computer, that is, a USB connector socket for use.

[0003] On the other hand, portable terminals such as mobile phones are also implemented to input and output data using USB communication.

[0004] As described above, the USB connector socket used in portable terminals such as mobile phones is a miniature USB connector socket with a small size due to the small size of the portable terminals.

[0005] In fact, for use in conjunction with such a micro-USB connector receptacle, a micro-USB connector plug is being developed and used.

[0006] On the other hand, in recent years, an improved C-Type micro USB connector plug has been developed that can be used in conjunction with a micro USB connector receptacle without distinguishing between up and down directions of connection, thereby enabling the transmission of various data such as images.

[0007] In fact, in the previous micro-USB connector plug developed and used as described above, the plug connection terminal composed of a connecting pin and a mounting terminal is inserted and fixed on the inner side of the plug part, so that it is separated from each other vertically and arranged at a certain interval left and right.

[0008] Therefore, by including the connection pins and mounting terminals as described above, and by inserting and fixing the plug connection terminals inside the plug portion so as to be spaced vertically and horizontally at a certain interval and arranged in multiple numbers, various data can be smoothly transmitted from the terminal.

[0009] On the other hand, the conventional micro USB connector plug using the improved C-Type as described above can smoothly transmit various data, but there is a problem that moisture may penetrate into the inserted injection molded object, that is, between the housing and the terminals due to the multiple terminals.

[0010] [Prior art literature]

[0011] [Patent Document]

[0012] Korean Patent Publication No. 10-2016-0095396 (August 11, 2016)

[0013] Korean Patent Publication No. 10-2018-0015456 (February 13, 2018)

[0014] Korean Patent Publication No. 10-2022-0005876 (January 14, 2022) Utility Model Content

[0015] [Problems to be solved by the utility model]

[0016] The utility model aims to provide a universal serial bus connector which has improved waterproof performance because protrusions and recesses formed on terminals can prevent moisture from penetrating between an inserted housing and the terminals.

[0017] Another object of the present invention is to provide a universal serial bus connector, which can be easily manufactured by forming a protrusion and a recess on the terminal after the first insert injection molding and before the second insert injection molding, and the connecting portion of the terminal is formed into a slant line to prevent damage to the terminal during the bending process.

[0018] [Technical means to solve the problem]

[0019] In order to achieve the above-mentioned purpose, the universal serial bus connector according to the present invention is a universal serial bus connector including a plurality of conductive contact terminals extending along the length direction of the connector and arranged in the width direction, and a shell supporting the plurality of contact terminals, the plurality of contact terminals including: a contact portion arranged on the front end side in the length direction of the connector and exposed from the shell to contact a mating connector; a mounting portion extending from the contact portion and adjacent to the rear end side and exposed from the shell; and an extension portion connecting the contact portion and the mounting portion, wherein a protrusion and a recess can be formed in a portion of the extension portion by a laser grooving method.

[0020] In addition, in the universal serial bus connector according to the present invention, the thickness of the contact terminal adjacent to the protrusion and the recess is formed thinner than the thickness of the protrusion and can be formed thicker than the thickness of the recess.

[0021] In addition, in the USB connector according to the present invention, a portion of the extension portion connects the contact portion and the mounting portion in an oblique line shape, and the protrusion and the recess may be located at the oblique line shape of the extension portion.

[0022] In addition, in the universal serial bus connector according to the present invention, the housing is integrated with the contact terminals by insert injection molding, a primary housing is formed by one insert injection molding, and a secondary housing can be formed by two insert injection molding.

[0023] In addition, in the universal serial bus connector according to the present invention, the laser grooving method for forming the protrusion and the recess can be performed after the primary insert molding and before the secondary insert molding.

[0024] In addition, in the universal serial bus connector according to the present invention, the contact portion of the contact terminal is located in the primary housing, and the protrusion and the recess formed on the extension portion of the contact terminal may be located in the secondary housing.

[0025] In addition, in the universal serial bus connector according to the present invention, the protrusion may be formed as an inclined surface.

[0026] [Effects of the utility model]

[0027] According to the universal serial bus connector of the present invention, the protrusion and the recess formed on the terminal can prevent moisture from penetrating between the inserted housing and the terminal, thereby having the effect of improving the waterproof performance.

[0028] In addition, according to the present invention, the following effects are achieved: a protrusion and a recess are formed on the terminal after the primary insert injection molding and before the secondary insert injection molding, which facilitates manufacturing, and the connecting portion of the terminal is formed into a slant line, thereby preventing damage to the terminal during the bending process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a perspective view showing a universal serial bus connector according to the present invention.

[0030] Figure 2 It is an exploded perspective view showing a universal serial bus connector according to the present invention.

[0031] Figure 3 It is a bottom perspective view of the universal serial bus connector according to the present invention.

[0032] Figure 4 The figure is a perspective view of the bottom surface of the universal serial bus connector according to the present invention.

[0033] Figure 5 (a) and Figure 5 (b) is a diagram showing a primary housing of the universal serial bus connector according to the present invention that is formed by one-time insert injection molding.

[0034] Figure 6 (a) and Figure 6 (b) is a diagram showing a secondary housing of the universal serial bus connector according to the present invention, which is formed by secondary insert molding.

[0035] Figure 7 It is a side sectional view of the universal serial bus connector according to the present utility model.

[0036] Figure 8 (a) to Figure 8 (c) is a diagram showing the structure of the protrusion and recess formed on the contact terminal of the universal serial bus connector according to the present invention. DETAILED DESCRIPTION

[0037] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0038] Advantages and features of the present invention and methods for achieving the advantages and features will become more apparent through reference to the accompanying drawings and embodiments described in detail below.

[0039] However, the present invention is not limited by the embodiments disclosed below, but is implemented in various different forms. The embodiments are only provided to complete the disclosure of the present invention and to fully inform those with ordinary knowledge in the technical field to which the present invention belongs of the scope of the present invention. The present invention is only defined by the scope of the claims.

[0040] Reference Figures 1 to 8 According to the utility model, a universal serial bus (Universal Serial Bus) connector may include: contact terminals 110, 130 for electrical connection; an intermediate plate 120 for maintaining rigidity and blocking noise; a housing 100, 200 surrounding the intermediate plate; a shell 150 combined with the housing in the form of surrounding the primary housing to protect the contact terminals 110, 130 and the rigidity of the housing; and a gasket 190 combined with one side outer peripheral surface of the housing 150 to prevent moisture penetration.

[0041] Reference Figures 1 to 4 The housings 100 and 200 are formed by: a primary housing 100 in which the lower contact terminals 110, the middle plate 120 and the upper contact terminals 130 are integrally formed by a single insert injection molding; and a secondary housing 200 in which the contact terminals 110, 130 exposed at the rear end of the primary housing 100 and the middle plate are integrally formed by a secondary insert injection molding.

[0042] In addition, the bracket 250 may be integrated with the secondary housing 200 to fix the USB connector to a substrate (not shown), and may be mounted to the substrate for secure fixation.

[0043] The USB connector according to this embodiment can complete the injection molding for manufacturing the housings 100 and 200 in two processes, thereby shortening the production process and minimizing the equipment and manpower used for injection molding, thereby reducing production costs.

[0044] More specifically, refer to Figure 5 (a) and Figure 5 (b) to Figure 8 (a) to Figure 8 (c) According to the utility model, the universal serial bus connector is a universal serial bus connector including a plurality of conductive contact terminals extending along the length direction of the connector and arranged in the width direction, and a housing supporting the plurality of contact terminals, wherein the plurality of contact terminals 110, 130 include: contact portions 111, 131 arranged at the front end side in the length direction of the connector and exposed from the housing to contact the mating connector; mounting portions 112, 132 extending from the contact portions 111, 131 and adjacent to the rear end side and exposed from the housing; and extension portions 113, 133 connecting the contact portions 111, 131 and the mounting portions 112, 132. In a portion of the extension portions 113, 133, protrusions 114, 134 and recesses 115, 135 can be formed by a laser grooving method, and a plurality of protrusions and recesses can be continuously formed by the laser grooving method.

[0045] Here, the laser grooving method is to form grooving grooves on the contact terminals by using a laser. In the present invention, it means forming the protrusions 114 and 134 and the recesses 115 and 135 .

[0046] In addition, grooves may be formed on the four surfaces of the contact terminal by laser grooving.

[0047] Alternatively, protrusions and depressions may be formed on the intermediate plate like contact terminals, and grooves may be formed on the four surfaces by laser grooving.

[0048] like Figure 5 (a) and Figure 5 (b) shows a diagram of a primary housing of a universal serial bus connector according to the present invention that is a result of one-time insert molding. After the one-time insert molding, the lower contact terminal 110, the upper contact terminal 130 and the intermediate plate 120 are installed at the same height from the bottom surface of the substrate, and can be formed to have at least one or more grooves respectively arranged in the width direction using a laser grooving method.

[0049] Figure 6 (a) and Figure 6 (b) shows that after the primary insert molding, the protrusions and recesses are formed by laser grooving, and the secondary shell is formed by secondary insert molding.

[0050] That is, the housing is integrated with the contact terminals by insert injection molding, and the primary housing 100 can be formed by one insert injection molding, and the secondary housing 200 can be formed by two insert injection molding.

[0051] At this time, the primary housing 100 , the bracket 250 , and the secondary housing 200 may be formed into one piece.

[0052] In the embodiment of the present invention, a case is disclosed where the protrusion 134 and the recess 135 are formed on the upper contact terminal 130 . However, the protrusion and the recess may also be formed on the lower contact terminal 110 and the middle plate 120 .

[0053] In addition, in the USB connector according to the present invention, the laser grooving method for forming the protrusions 114 and 134 and the recesses 115 and 135 can be performed after the primary insert molding and before the secondary insert molding.

[0054] That is, the protrusions and recesses are formed at the contact terminals after the primary insert injection molding and before the secondary insert injection molding. Since the protrusions and recesses are formed when all the contact terminals are arranged, the arrangement will not be disordered and manufacturing is easy.

[0055] In addition, if Figure 7 and Figure 8 (a) to Figure 8 As shown in (c), in the universal serial bus connector according to the present invention, the thickness L1 of the extension portion 133 of the contact terminal 130 formed with a protrusion 134 and a recess 135 is thinner than the thickness L2 of the protrusion 134 and can be thicker than the thickness L3 of the recess 135.

[0056] Thus, the protruding and recessed shapes are repeatedly realized on the surface of the contact terminal, so that moisture can be prevented from penetrating between the inserted injection molded object, that is, the housing and the terminal by the corresponding shapes, thereby having the effect of improving the waterproof performance.

[0057] In addition, in the universal serial bus connector according to the present invention, if Figure 7 As shown, when the connector is viewed from the side, a portion of the extension portion 113 , 133 connects the contact portion 111 , 131 and the mounting portion 112 , 132 in a slanted shape, and the protrusion and the recess may be located at the slanted shape of the extension portion.

[0058] That is, when the connection portion is formed as a straight line, deformation of the contact terminal may occur during a bending process, and breakage of the contact terminal may occur during injection molding of the housing.

[0059] Therefore, the connection portion of the contact terminal is formed as an oblique line, thereby having the following effect: deformation and damage of the contact terminal can be prevented by a buffering effect during the bending process.

[0060] In addition, the contact portion 131 of the contact terminal 130 is located in the primary housing 100 , and the protrusion 134 and the recess 135 formed on the extension 133 of the contact terminal 130 may be located in the secondary housing 200 .

[0061] In addition, the protrusion 134 can be formed as an inclined surface 134a, so that the inclined surface 134a can prevent moisture W from penetrating into the space between the shell and the terminal, and the penetrated moisture can be accommodated by at least one or more recessed portions, thereby preventing the moisture from moving to the mounting portion and preventing the moisture from penetrating from the mounting portion to the substrate.

[0062] Therefore, according to the present invention, the protrusion and the recess formed on the terminal can prevent moisture from penetrating between the inserted housing and the terminal, thereby having the effect of improving the waterproof performance.

[0063] In addition, according to the present invention, the following effects are achieved: a protrusion and a recess are formed on the terminal after the primary insert injection molding and before the secondary insert injection molding, which facilitates manufacturing, and the connecting portion of the terminal is formed into a slant line, thereby preventing damage to the terminal during the bending process.

[0064] So far, the specific embodiments of the universal serial bus connector according to the present invention have been described. However, it is obvious that various modifications can be made without departing from the scope of the present invention.

[0065] Therefore, the scope of the present invention should not be limited or determined by the illustrated embodiments, but should be determined by the above-mentioned patent claims and the equivalents of the patent claims.

[0066] That is, the aforementioned embodiments should be understood in all aspects as illustrative rather than restrictive, and the scope of the present invention is represented by the above-mentioned patent claims rather than the detailed description, and the meaning and scope of the patent claims and all changes or deformations derived from their equivalent concepts should be interpreted as being included in the scope of the present invention.

Claims

1. A universal serial bus connector, comprising a plurality of conductive contact terminals extending along the length direction of the connector and arranged in the width direction, and a housing supporting the plurality of contact terminals, characterized in that : The plurality of contact terminals include: a contact portion arranged on the front end side in the longitudinal direction of the connector and exposed from the housing to contact the mating connector; a mounting portion extending from the contact portion to be adjacent to the rear end side and exposed from the housing; and an extension portion connecting the contact portion and the mounting portion. In a portion of the extension portion, a protrusion and a depression are formed by laser grooving.

2. The universal serial bus connector according to claim 1, wherein: The thickness of the contact terminal adjacent to the protrusion and the recess is formed to be thinner than the thickness of the protrusion and thicker than the thickness of the recess.

3. The universal serial bus connector according to claim 1, wherein: A portion of the extension portion connects the contact portion and the mounting portion in an oblique line shape, and the protrusion and the recess are located at the oblique line shape of the extension portion.

4. The universal serial bus connector according to claim 1, wherein: The housing is integrated with the contact terminal by insert injection molding. The primary housing is formed by primary insert injection molding, and the secondary housing is formed by secondary insert injection molding.

5. The universal serial bus connector according to claim 4, wherein: The laser grooving method for forming the protrusion and the recess is performed after the primary insert injection molding and before the secondary insert injection molding.

6. The universal serial bus connector according to claim 4, wherein: The contact portion of the contact terminal is located in the primary housing, The protrusion and the recess formed on the extension portion of the contact terminal are located in the secondary housing.

7. The universal serial bus connector according to claim 1, wherein: The protrusion is formed as an inclined surface.

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