KR20160075198A - Waterproof type micro usb connector - Google Patents

Abstract

The present invention provides a waterproof micro USB connector which includes: a main contact assembly including a main insulator comprising insulator blocks and including a connection part in a side thereof, and a main contact array assembled with the main insulator to be arranged in the connection part; a housing which includes an inner space to store the main contact assembly and a front side which is opened, and is made of insulating materials; a main shell inserted into the housing to surround the connection part; and a cover shell placed in the housing to provide an EMI shielding function to cover the main shell, and insert-molded in the housing. Therefore, the present invention is capable of conveniently and simply progressing with an assembly process.

Description

A waterproof type micro USB connector {WATERPROOF TYPE MICRO USB CONNECTOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a waterproof type micro USB connector, and more particularly, to a waterproof type micro USB connector having a structure in which a housing is enclosed to be waterproof.

Portable electronic devices such as mobile phones, notebooks, PMPs, portable game machines, MP3 players, smart phones, and the like, which have been widely popularized by the public in recent years, are gradually expanding in type and function. Particularly, a portable electronic device is provided with a connector device for data communication. The connector device is composed of a receptacle connector mounted on a printed circuit board (PCB) in a portable electronic device and a plug connector fastened thereto, It is used for data communication or power supply by connecting with power supply device.

Micro-USB is a connector apparatus that has been used most recently.

The micro USB connector is designed to be very slim for the slimmer type of mobile terminal such as the recently released mobile phone, and supports the USB 2.0 specification.

In recent years, a portable electronic device such as a mobile phone has a tendency not to have a separate dust cap installed in its case. Therefore, it is possible to prevent various foreign substances and moisture from penetrating into the portable electronic device through the receptacle connector The receptacle connector itself needs to be provided. A related art regarding the micro USB connector is disclosed, for example, in Korean Patent Laid-Open Publication No. 2013-0062711.

Korean Patent Laid-Open Publication No. 2013-0062711 discloses a USB connector that includes a socket for inserting a connection terminal of an external device and a socket for inserting a plug And the sealing member is directly coupled to the outer peripheral surface of the front end portion of the socket by an insert injection.

However, in the conventional connector having a waterproof function, there is a weak point that it is difficult to provide EMI (Electro Magnetic Interference) shielding means because of the structure in which the socket body is made of plastic injection molding or the sealing member is provided outside the body. Recently, since the data transmission speed is increased by using USB, Mobile High-Definition Link (MHL) or the like, the importance of EMI shielding is getting more and more important.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a waterproof type micro USB connector having a waterproof function and an EMI shielding structure.

According to an aspect of the present invention, there is provided a semiconductor device comprising: a main insulator including an insulator block and having a connection portion on one side; a main contact assembly having a main contact array formed on the main insulator and arranged on the connection portion; A housing having an inner space for accommodating the main contact assembly and having a front surface opened, the housing being made of an insulating material; A main shell inserted into the housing and surrounding the connection; And a cover shell provided on the housing to cover the main shell to provide an EMI shielding function and insert-injected into the housing.

It is preferable that the cover shell includes a contact portion having a "D" shape in cross section so as to cover the upper surface and both side surfaces of the main shell within the housing.

The ground between the main shell and the cover shell is preferably welded.

It is preferable that a welding hole is formed on the upper surface of the housing.

Preferably, a soldering terminal portion is provided on both sides of the cover shell, and the soldering terminal portion may be exposed to the outside of the bottom surface of the housing.

A PCB mounting hole may be formed in the housing, and a PCB mounting hole may be formed in the soldering terminal portion to communicate with the PCB mounting fastening hole.

The waterproof type micro-USB connector according to the present invention may further include a shield cover coupled to an upper surface of the housing to provide a shielding function.

Preferably, the shield cover is partially coupled to a portion of the outer surface of the housing, and the other portion protrudes from the rear portion of the housing to cover the lead portions of the main contact array and the sub contact array.

The shield cover may include a top surface portion corresponding to an upper surface of the housing and a rear surface portion extending from the top surface portion and corresponding to a rear surface of the housing.

The shield cover may further include a housing coupling portion extending downward from both end edges of the front portion of the upper surface portion and fastened to the housing.

The shield cover may further include a side shielding portion extending downward from both end edge portions of the rear portion of the upper surface portion and shielding both side surfaces of the lead portion of the main contact array and the sub contact array.

The lower end of the housing coupling portion or the side shield may be mounted on the PCB.

The shield cover may have an opening for securing the separation distance at a lower end portion of the rear portion.

The shield cover may include an opening for inspecting whether or not the PCB is mounted on the portion extending from the upper surface portion to the rear surface portion.

A sub-insulator assembled to the main insulator, and a sub-contact array assembled to the sub-insulator, the sub-insulator being arranged at the connection portion, wherein the main contact array and the sub-contact array are extended to the outside of the rear surface of the housing, The main contact array and the sub contact array may be arranged in the same column.

Preferably, a waterproof potion may be formed on a rear surface of the housing.

It is preferable that a sealing member is provided on the outer peripheral surface of the front end of the housing.

The contact fins may be arranged such that the main contact array satisfies the USB specification.

According to the present invention, the housing of the connector is formed as an injection molded body to provide a waterproof function, and the EMI shielding function can also be provided by the cover shell provided in the housing and the shield cover which can be additionally constructed.

In addition, according to the present invention, since the cover shell having the EMI shielding function is insert-injected into the housing, the assembly process can be performed conveniently and simply.

Further, according to the present invention, the main shell and the cover shell are joined together by welding, so that the grounding can be easily performed and the strength of the connector can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further the understanding of the technical idea of the invention. And should not be construed as limiting.
1 is an exploded perspective view showing the construction of a waterproof type micro USB USB connector according to a preferred embodiment of the present invention,
2 is an assembled perspective view of FIG. 1,
Fig. 3 is a front view of Fig. 2,
FIG. 4 is a perspective view showing a rear configuration in FIG. 2,
5 is a perspective view showing a structure in which a cover shell is insert-injected into a housing according to the present invention,
FIG. 6 is a perspective view showing a configuration in which the main shell is coupled in FIG. 5,
7 is a perspective view illustrating a structure in which a shield cover is coupled to a housing according to the present invention,
FIG. 8 is a top view of the state where the shield cover is coupled to the housing in FIG. 7,
Fig. 9 is a side view of Fig. 8,
Fig. 10 is a rear view of Fig. 8,
Fig. 11 is a bottom view of Fig. 8; Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

FIG. 1 is an exploded perspective view showing the construction of a waterproof type micro USB USB connector according to a preferred embodiment of the present invention, and FIG. 2 is an assembled perspective view of FIG.

1 and 2, a waterproof type micro USB USB connector according to a preferred embodiment of the present invention includes a main contact assembly 100, a housing 110 housing the main contact assembly 100, And a cover shell 111 insert-injected into the housing 110 to cover the main shell 120. The main shell 120 is inserted into the main shell 120,

The main contact assembly 100 includes a main insulator 101 composed of an insulator block of a predetermined shape, a connection portion 104 protruding from one side of the main insulator 101 and having a plate-like body connectable to a general-purpose micro USB USB plug connector, And a main contact array (refer to 102 in Fig. 4) that is assembled to the main insulator 101 and has a front portion arranged on the connection portion 104. [ In addition, a guard plate 103 made of a metal is installed on one surface of the connection part 104 to reinforce the parts.

The main contact arrays 102 are arranged such that the contact pins meet the micro USB specification. The front ends of the respective contact pins are arranged on the connection portion 104 and the rear portion is drawn out of the rear surface of the main insulator 101. Specifically, a lead portion 102a drawn out through a rear lower end of the housing 110 and a connecting portion 102b leading from the connecting portion 104 to the lead portion 102a are provided at a rear portion of the main contact array 102. [

The contact pins of the main contact array 102 The lead insulator 101 is assembled to the main insulator 101 at a predetermined pitch through the rear surface of the main insulator 101 and arranged at the connection portion 104 and the lead portion 102a located at the rear portion thereof is drawn out to the rear side of the main insulator 101. [ Preferably, the main contact array 102 is made of, for example, 5-pin contact pins so as to satisfy the USB 2.0 standard.

The connection portion 102b of the main contact array 102 is preferably bent in both lateral directions of the rear surface of the housing 110. In this case, According to this configuration, the lead portions 102a of the main contact arrays 102 are arranged in the same row on the sides of the lead portions 130a of the sub contact arrays 130 drawn out through the rear surface of the housing 110 .

The housing 110 is made of an insulating material whose front surface is opened to allow insertion of a general-purpose micro USB USB plug connector. In addition, the housing 110 has an inner space for accommodating the main contact assembly 100 and communicating with the opening of the front surface.

The main shell 120 is a metal member inserted into the housing 110 and surrounding the connection portion 104 in which the contact pins are arranged. The main shell 120 is disposed so as to surround the connection portion 104 to provide functions such as electromagnetic wave shielding, strength maintenance of parts and improvement of bonding strength with the PCB.

The cover shell 111 is positioned at the top of the main shell 120 to cover the main shell 120 as shown in FIG. The cover shell 111 covers the top and both sides of the main shell 120 to provide the EMI shielding function. Here, the cover shell 111 is insert-injected into the housing 110 and provided in the housing 110.

A sub-insulator 131 is further provided in the housing 110 in which a sub-contact array 130 for providing a predetermined additional contact such as an I / O terminal is assembled.

The sub-insulator 131 is assembled to the main insulator 101. The sub contact array 130 is assembled at a predetermined pitch in the sub insulator and arranged at the connection portion 104 and the lead portion 130a is drawn out to the rear side of the main insulator 101. [

The connection portion 102b of the main contact array 102 may be bent in both lateral directions of the rear surface of the housing 110 so as to be aligned with the lid portion 130a of the sub contact array 130. [

In addition, it is preferable that a sealing member 113 is assembled to the outer peripheral surface of the front end of the housing 110 to waterproof the boundary between the waterproof type micro USB connector and the installation target (for example, the case of the mobile terminal).

The lid portion 102a of the main contact array 102 and the lid portion 130a of the sub contact array 130 are preferably drawn out of the rear surface of the housing 110 and positioned in the same row Do. The rear surface of the housing 110 is waterproofed by the waterproofing potting part 150 in a state in which the lid part 102a of the main contact array 102 and the lid part 130a of the sub contact array 130 are exposed. .

Fig. 5 shows a configuration before and after the cover shell 111 is insert-injected into the housing 110 according to the present invention. As shown in the drawing, the cover shell 111 is inserted in the housing 110 and disposed in the housing 110 according to the present invention.

5, the cover shell 111 has a contact portion 111a having a "U" -shaped cross-section so as to cover the upper surface and both side surfaces of the main shell 120 inside the housing 110 . In addition, the cover shell 111 is provided with a soldering terminal portion 111b extending perpendicularly to both side surfaces of the contact portion 111a. The soldering terminal portion 111b is exposed to the outside of the bottom surface of the housing 110 when the insert injection is completed, and is used for soldering to the PCB. A PCB mounting hole 114c is formed in the housing 110 and a PCB mounting hole 111c is formed at an end of the soldering terminal portion 111b to communicate with the PCB mounting coupling hole 114 desirable.

FIG. 6 is a view showing a configuration in which the main shell 120 is coupled in FIG. As shown in the drawing, the main shell 120 is assembled into the assembly of the housing 110 and the cover shell 111 formed by the insert injection. At this time, the main shell 120 is inserted to cover the top and both sides by the cover shell 111, and the cover shell 111 and the main shell 120 are welded to each other through the upper surface of the housing 110, .

It is preferable that a welding hole (see 112 in FIG. 5) is formed on the upper surface of the housing 110 for welding between the cover shell 111 and the main shell 120. When the welding is completed, a weld W is formed in the welding hole 112 by welding or the like.

7, a shield cover 140 is coupled to a part of the outer surface of the housing 110 according to the present invention. 8 to 11 show the configuration and arrangement of the shield cover 140 in detail.

7 to 11, the shield cover 140 includes a top surface portion 141 corresponding to an upper surface of the housing 110 by press-working a metal plate, and an upper surface portion 141 extending toward the rear of the upper surface portion 141, And may have a rear portion 142 corresponding to the rear surface of the housing 110. The housing cover 143 may be formed by bending both side portions of the upper surface of the shield cover 140 so as to be coupled to the coupling groove 111 of the upper surface of the housing 110. At this time, in order to increase the coupling strength between the shield cover 140 and the PCB, the housing coupling portion 143 may be longer than the height of the housing 110, and the lower end of the housing coupling portion 143 may be Dip soldered to the PCB. Both side portions of the rear portion of the upper surface portion of the shield cover 140 are bent to shield both sides of the outermost sides of the lead portions 102a and 130a of the main contact array 102 and the sub contact array 130 exposed to the rear surface of the housing 110 A side shield 144 may be formed and the bottom of the side shield 144 may be Dip soldered or SMT mounted to the PCB. According to the drawings of the present specification, the semicircular spacing distance-securing opening 146 is formed at the lower end of the rear surface portion 142 of the shield cover 140. However, this is for the purpose of securing a separation distance from the power terminal, As an embodiment, it is possible not to form it according to the design, but to change the shape and the size. The main contact array 102 and the sub contact array 130 are formed by forming the PCB mounting inspecting opening 145 on the round surface that extends from the top surface portion 141 of the shield cover 140 to the rear surface portion 142, It is possible to easily check whether the lead portions 102a and 130a of the PCB 100 are mounted.

In the waterproof type micro USB USB connector according to the preferred embodiment of the present invention, the housing 110 is formed as an injection molded product, and therefore, the waterproof function is basically provided. In addition, the cover 110, which is insert- 111 to provide an EMI shielding function. That is, electromagnetic waves emitted from the contact arrays arranged inside the housing 110 are shielded from radiation to the outside by the cover shell 111 inserted in the housing 110 by insert injection. In addition, by providing the shield cover 140 corresponding to the main contact array 102 and the sub contact array 130 in addition, complete shielding can be realized.

In addition, since the cover shell 111 injected into the housing 110 and the main shell 120 covered by the same are maintained in a state of being firmly bonded to each other by welding, Even if the insertion and ejection of the connector are repeatedly performed, the problem of the misalignment or breakage of the alignment state between the components can be prevented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not to be limited to the details thereof and that various changes and modifications will be apparent to those skilled in the art. And various modifications and variations are possible within the scope of the appended claims.

100: main contact assembly 101: main insulator
102: main contact array 103: guard plate
104: connection 110: housing
111: Cover shell 112: Hole for welding
113: sealing member 114: PCB mounting fastener
120: main shell 130: sub contact array
140: shield cover 150: waterproof potting part

Claims (18)

A main insulator formed of an insulator block and provided with a connection portion at one side thereof; a main contact assembly having a main contact array assembled to the main insulator and arranged at the connection portion;
A housing having an inner space for accommodating the main contact assembly and having a front surface opened, the housing being made of an insulating material;
A main shell inserted into the housing and surrounding the connection; And
And a cover shell provided in the housing to cover the main shell to provide an EMI shielding function and insert-injected into the housing. The method according to claim 1,
Wherein the cover shell includes a contact portion having a U-shaped cross-section to cover the upper surface and both side surfaces of the main shell within the housing. The method according to claim 1,
And the ground between the main shell and the cover shell is formed by welding. The method of claim 3,
And a weld hole is formed on the upper surface of the housing. The method according to claim 1,
A soldering terminal portion is provided on both sides of the cover shell,
And the soldering terminal portion is exposed to the outside of the bottom surface of the housing. 6. The method of claim 5,
A PCB mounting fastening hole is formed in the housing,
And a PCB mounting hole communicating with the PCB mounting fastening hole is formed in the soldering terminal portion. The method according to claim 1,
And a shield cover coupled to an upper surface of the housing to provide a shielding function. 8. The method of claim 7,
Wherein the shield cover is partially coupled to a portion of the outer surface of the housing and the other portion is protruded from the rear portion of the housing to cover the lead portion of the main contact array and the sub contact array. 9. The method of claim 8,
Wherein the shield cover includes a top surface portion corresponding to an upper surface of the housing and a rear surface portion extending from the top surface portion and corresponding to a rear surface of the housing. 10. The method of claim 9,
Wherein the shield cover further includes a housing coupling portion extending downward from both end edges of the front portion of the upper surface portion and fastened to the housing. 11. The method of claim 10,
Wherein the shield cover further includes a side shielding portion extending downward from both end edge portions of the rear portion of the upper surface portion to shield both side surfaces of the lead portion of the main contact array and the sub contact array. 12. The method of claim 11,
And the lower end of the housing coupling part or the side shield part is mounted on the PCB. 12. The method of claim 11,
Wherein the shield cover has an opening for securing the separation distance formed at a lower end portion of the rear portion. 12. The method of claim 11,
Wherein the shield cover has an opening for inspecting whether or not the PCB is mounted on the portion extending from the upper surface portion to the rear surface portion. The method according to claim 1,
A sub-insulator assembled to the main insulator, and a sub-contact array assembled to the sub-insulator and arranged at the connection portion,
Wherein the main contact arrays and the sub contact arrays are drawn out to the outside of the rear surface of the housing and the lead portions of the main contact arrays and the lead portions of the sub contact arrays are located in the same column. 16. The method of claim 15,
And a waterproof potion formed on a rear surface of the housing. The method according to claim 1,
And a sealing member coupled to an outer circumferential surface of a front end portion of the housing. The method according to claim 1,
And the contact fins are arranged so that the main contact array satisfies the USB standard.

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