KR101685627B1 - Micro USB connector plug - Google Patents

Abstract

The present invention relates to a micro USB connector plug, in which a metal shell having a vertical ground piece protruding from one side of a rear side, a horizontal ground piece protruding from one side of the vertical ground piece, A plug contact terminal having a ground terminal contacting the ground terminal and a horizontal ground terminal on the rear side of the ground terminal is applied to provide a double contact structure so that even if one of the contact portions is not deformed, The grounding through the double contact structure can be made more stable, unlike the conventional single contact structure, and the connection between the connection terminal and the metal shell due to the withstand voltage when connecting to the micro USB connector socket In order to prevent a short circuit that occurs in the It has its purpose.
The micro USB connector plug according to the present invention configured for this purpose is provided in a portable terminal such as a mobile phone and includes a socket connection terminal, a socket mold having a socket connection part on one side, a micro USB connector socket including a socket housing, The micro USB connector plug includes a plug mold having a plug connection portion connected to a socket connection portion of the micro USB connector socket so as to protrude forward from the mold body; A metal shell wrapped around the plug; And a plug connection terminal having a plug connection terminal protruded upward at a front end thereof to be in contact with the socket connection terminal and a plurality of plug connection terminals inserted in the width direction of the plug connection so that the plug connection end is exposed at the front end of the plug connection, The metal shell is protruded at a rear side of the metal shell at a predetermined angle upward and then extends in a horizontal direction by a predetermined length so as to protrude and form a vertical grounding piece and protrude from the rear end of the vertical grounding piece at a predetermined length backward longer than the vertical grounding piece, Wherein a mounting hole is formed in a center portion of the mold body of the plug mold so that a ground hole is formed on the mounting groove so as to communicate with the inside of the mounting groove and a ground terminal is protruded on the upper side of the center portion, The ground terminal is exposed through the ground hole to the outside of the mold body, It comprises a configuration.

Description

Micro USB connector plug < RTI ID = 0.0 >

More particularly, the present invention relates to a micro USB connector plug, and more particularly, to a micro USB connector plug having a vertically grounded piece protruding from a rear side of a vertical ground piece, A plug-in terminal having a metal shell having a horizontally grounding piece protruding for a longer length and a grounding end protruding upward from the center portion and contacting with the vertical grounding piece in a vertical direction, So that even if one of the contact portions is not contacted by deformation, the other contact portion can be contacted, and unlike the conventional single contact structure, the grounding through the double contact structure can be made more stable In addition, Relates to a connection terminal and the metal shell, a micro short circuit yueseubi to prevent (short circuit) occurs between the connector (metal shell) by a connection plug of the coupling when the withstand voltage and ground socket.

Generally, a micro USB connector plug allows a portable terminal such as a mobile phone to input / output data using a USB bus, and is connected to a micro USB connector socket provided for input / output of data to / from a portable terminal.

Here, a micro USB connector socket provided in a portable terminal such as a cellular phone typically comprises a socket mold in which a socket connection portion is protruded, and a socket housing to which the socket mold is coupled so that a plurality of socket connection terminals .

The conventional micro USB connector plug used in connection with such a micro USB connector socket is composed of a plug mold in which a plug connection portion is protruded and a metal shell which is coupled to enclose a plug connection portion of the plug mold, A plurality of plug connection terminals are inserted into the plug mold at a front end portion of the connection portion so that a plug connection end formed in front of the plug connection terminal to be in contact with the socket connection terminal of the micro USB connector socket is exposed.

That is, the micro USB connector plug is used by being connected to the socket of the micro USB connector through a plug connection end protruded upward from the front end of the plug connection terminal, in contact with the socket connection terminal.

However, the conventional micro USB connector plug as described above has a problem that a short circuit occurs between a metal shell and a plug connection terminal which is in contact with a socket connection terminal due to a high withstanding voltage. A short circuit is generated between the terminal and the metal shell, thereby causing safety accidents and parts breakage.

In order to solve the above problems, a micro USB connector plug as shown in Patent Document 1 (registered in Korean Registered Patent No. 1265270, May 31, 2013, registered by the present applicant) is provided.

The conventional micro USB connector plug as shown in the above Patent Document 1 is provided in a portable terminal such as a mobile phone and has a socket connection terminal, a socket mold having a socket connection part on one side, and a micro USB connector socket including a socket housing. A micro USB connector plug connected and disconnected for input / output and charging, comprising: a plug mold in which a plug connection portion connected to a socket connection portion of the micro USB connector socket is protruded forward of a mold body; A metal shell wrapped around the plug; And a plug connection terminal having a plug connection terminal protruded upward at a front end thereof to be in contact with the socket connection terminal and a plurality of plug connection terminals inserted in the width direction of the plug connection so that the plug connection end is exposed at the front end of the plug connection, Wherein one of the plug connection terminals is provided with an elastic ground terminal which is in contact with the inner surface of the metal shell on the upper side of the center portion thereof and that the elastic ground terminal is elastically contacted with the inner surface of the metal shell, And a ground hole inserted into the upper surface of the rear end so that the elastic ground terminal protrudes upward by a predetermined height.

In such a conventional micro USB connector plug, an elastic ground terminal is provided on the upper side of the central portion of one of the plug connection terminals, and the elastic ground terminal is in contact with the inner surface of the metal shell in the vertical direction.

In other words, the conventional micro USB connector plug as described above has a problem that the elastic ground terminal is in contact with the inner surface of the metal shell, and it is difficult to distinguish whether the connector is a product to which the grounding structure is applied after assembling the connector plug.

In addition, since the grounding structure is unstable due to the structure in which the elastic grounding end is grounded only in the vertical direction with respect to the inner surface of the metal shell, improvement is required in a more stable grounding structure.

As a conventional technique for preventing a safety accident and a component from being damaged due to a short circuit between a plug connection terminal and a metal shell, there has been proposed a plug assembly having a spark prevention function (Patent Document 2: Registration No. 1355163, April 17, 2014) is provided.

The plug assembly having the spark preventing function includes a pin holder configured to include a pin configured to longitudinally cross the entire inside of the body so as to be able to transmit and receive signals to and from an electrically coupled product, And the wire holder is covered with the cover so as to protect the pin and the wire contact pin, respectively, so as to protect the pin and the wire contact pin Wherein a groove for receiving the contact portion is formed between the cover of the pin holder and the cover of the wire holder so that the contact portion constituted by the ground pin among the plurality of contact pins comes into contact with the cover of the pin holder, And the portion of the cover is formed to be bent so as to conform to the contact position of the contact portion The.

However, the plug assembly having a spark-preventive function, which is provided as a conventional micro USB connector plug, has one end of the cover of the pin holder bent in the vertical direction and horizontally contacting with the upwardly protruding portion of the ground pin, The grounding structure is unstable and it is required to improve the grounding structure more stably.

Further, when one end of the cover of the pin holder is bent in the vertical direction and is in horizontal contact with the upward protruding portion of the ground pin, if the deformation of the bent portion of the cover of the pin holder in the vertical direction occurs, There is a problem that the formed portion is not brought into contact with the upward projecting portion of the ground pin.

Therefore, even if one of the contact portions is not deformed by the double contact structure, the other contact portion can be brought into contact with the ground. Therefore, unlike the conventional single contact structure, the grounding through the double contact structure is more stable The research and development of a micro USB connector plug is required.

Korean Registered Patent No. 1265270 issued Oct. 20, 2013. Enrollment. Korean Registered Patent No. 1355163 issued Jan. 17, 2014. Enrollment.

In order to solve the above-described problems, the present invention provides a vertical grounding piece which is formed by protruding a certain length of horizontal direction and protruding from a rear side of a rear side of a rear side of the vertical grounding piece, A metal shell having a horizontal ground piece protruding by a predetermined length and a plug connection terminal protruding upward from the center portion and having a ground end contacting with the vertical ground piece in a vertical direction and having a horizontal ground piece in contact with a rear side of the grounding end, And it is an object of the present invention to provide a micro USB USB connector plug in which a contact portion of another one can be contacted even if one of the contact portions is not deformed.

In addition, the technology according to the present invention is provided with a double contact structure, so that even when one of the contact portions is not deformed, the other contact portion can be brought into contact with the ground. Thus, unlike the conventional single contact structure, So as to be more stable.

Further, the technique of the present invention includes a vertical ground piece that is formed by protruding a certain length in the horizontal direction after being tilted upward at a certain angle to the front side on the rear side of the rear side, and a vertical ground piece which is protruded and formed longer than the vertical ground piece A metal shell having a horizontal grounding piece and a plug connecting terminal protruding from the upper side of the center portion and having a grounding end contacting with the vertical grounding piece in the vertical direction and having a horizontal grounding piece in contact with a rear side of the grounding end, And it is an object of the present invention to more stably prevent a short circuit occurring between a connection terminal and a metal shell due to a withstanding voltage in connection with a socket.

The present invention for achieving the above-mentioned objects is as follows. That is, the micro USB connector plug according to the present invention is provided in a portable terminal such as a mobile phone, and has a socket connection terminal, a socket mold having a socket connection part at one side, and a micro USB connector socket including a socket housing. A plug connector comprising: a plug mold in which a plug connection portion connected to a socket connection portion of the micro USB connector socket is protruded forward of a mold body; A metal shell wrapped around the plug; And a plug connection terminal having a plug connection terminal protruded upward at a front end thereof to be in contact with the socket connection terminal and a plurality of plug connection terminals inserted in the width direction of the plug connection so that the plug connection end is exposed at the front end of the plug connection, The metal shell is protruded at a rear side of the metal shell at a predetermined angle upward and then extends in a horizontal direction by a predetermined length so as to protrude and form a vertical grounding piece and protrude from the rear end of the vertical grounding piece at a predetermined length backward longer than the vertical grounding piece, Wherein a mounting hole is formed in a center portion of the mold body of the plug mold so that a ground hole is formed on the mounting groove so as to communicate with the inside of the mounting groove and a ground terminal is protruded on the upper side of the center portion, The ground terminal is exposed through the ground hole to the outside of the mold body, It comprises a configuration.

Here, the horizontal ground piece may have a horizontal contact portion on one side of the end portion opposite to the rear side of the grounding end of the plug connection terminal, so that one side of the end portion of the horizontal ground piece may contact the rear side of the grounding end of the plug connection terminal. It is preferable that they are protruded.

At this time, the horizontal contact protrusion may be provided in a serrated shape so that the horizontal contact protrusion protrudes while being projected in a round shape when viewed from the plane, so that the horizontal contact protrusion is kept in contact with the rear side of the ground end.

Preferably, the ground terminal has a vertical contact protrusion protruding from a top surface of the ground contact so as to contact the top surface of the ground terminal.

At this time, the vertical contact protrusion may be provided in a serrated shape so that the vertical contact protrusion protrudes upward while being rounded when viewed from the side, so that the vertical contact protrusion is kept in contact with the lower surface of the vertical ground contact piece.

The upper surface of the vertically contacted portion of the grounding end is pressed downward by a predetermined length in the forward direction toward the lower end of the rear end portion so that the vertically contacted portion of the grounding end can be pressed and touched by a tension action. It is preferable that a ground inclined surface is formed to be guided.

Further, the ground end of the plug connection terminal is formed in a shape of "a" shape on the upper side of the central portion of the plug connection terminal so as to be in press contact with the lower surface of the ground inclined surface by a tension action, It is preferable to bend and protrude for a certain length.

Effects of the micro USB connector plug according to the present invention are as follows.

First, a vertical ground piece which is formed by protruding a certain length in the horizontal direction after being inclined upwards at a predetermined angle to the front side at a rear side, and a metal piece having a horizontal ground piece protruding from the rear edge of the vertical ground piece And a plug connection terminal protruding upward from the center of the center portion and having a grounding end contacting with the vertical grounding piece in a vertical direction and having a horizontal grounding piece in contact with a rear side of the grounding end, The other contact portion can be contacted.

Second, the vertical grounding piece and the horizontal grounding piece are provided in a double contact structure in which the grounding end and the grounding end are in contact with one side of the rear end of the grounding end, so that even if one of the contact portions is not deformed, Unlike the structure, the grounding through the double contact structure can be made more stable.

Third, there is a vertical ground piece that is formed by protruding a certain length in the horizontal direction after being inclined upwards at a predetermined angle to the front side of the rear side and a metal piece having a horizontal ground piece protruding from the rear edge of the vertical ground piece And a plug connection terminal protruding upward from the center of the center portion and having a grounding end contacting with the vertical grounding piece in the vertical direction and having a horizontal grounding piece in contact with a rear side of the grounding end, A short circuit occurring between the connection terminal and the metal shell due to the withstand voltage can be prevented more stably.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustrating a micro USB connector plug according to the present invention. FIG.
FIG. 2 is a perspective view illustrating a coupling structure of a micro USB connector plug according to the present invention. FIG.
3 is a side cross-sectional view illustrating a grounding structure of a micro USB USB connector plug according to the present invention in a vertical direction.
FIG. 4 is a plan view showing a grounding structure of a micro USB USB connector plug according to the present invention in a lateral direction. FIG.
FIG. 5 is a cross-sectional view illustrating a state in which a micro USB USB connector plug according to the present invention is connected to a micro USB connector socket; FIG.

Hereinafter, preferred embodiments of the micro USB connector plug according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view illustrating a micro USB connector plug according to the present invention, and FIG. 2 is a perspective view illustrating a micro USB connector plug according to the present invention.

3 is a side cross-sectional view illustrating the grounding structure of the micro USB connector plug according to the present invention in a vertical direction, and FIG. 4 is a plan view illustrating a grounding structure of the micro USB connector plug according to the present invention .

5 is a cross-sectional view illustrating a state in which the micro USB connector plug according to the present invention is connected to the micro USB connector socket.

1 to 5, a micro USB connector plug 100 according to a preferred embodiment of the present invention is provided in a portable terminal such as a cellular phone, and includes a socket connection terminal 250, a socket having a socket connection part 215 at one side, And is connected to the micro USB connector socket 200 including the mold 210 and the socket housing 230 for inputting / outputting and charging data.

In other words, the micro USB connector socket 200 to which the micro USB connector plug 100 is connected includes a socket mold 210 in which the socket connector 215 protrudes, and a socket mold 210 in which the socket mold 210 is coupled And a plurality of socket connection terminals 250 are provided on the lower surface of the socket connection part 215. [

Hereinafter, a micro USB connector plug 100 according to a preferred embodiment of the present invention, which is connected to the above-described micro USB connector socket 200 for charging and inputting data of a portable terminal such as a mobile phone, will be described in detail. same.

First, the micro USB connector plug 100 includes a plug mold 110, a metal shell 130, and plug connection terminals 140 and 150.

The plug mold 110 has a plug connection part 115 connected to the socket connection part 215 of the micro USB connector socket 200 protruding from the front surface of the mold body 111 for a predetermined length.

At this time, a coupling protrusion 161 protrudes upward from both sides of the upper surface of the front end of the plug connection part 115. The coupling protrusion 161 protrudes from the rear of the mold body 111 opened in the plug mold 110 And is provided at the front end of the coupling pin 160 inserted through the coupling pin 160. In addition, the fixing protrusion 112 may protrude upward from the center of the upper surface of the mold body 111 on the front side.

The metal shell 130 is coupled with the plug connection part 115 while the coupling protrusion 161 protruding upward from the front end of the plug connection part 115 is coupled to both sides of the upper surface of the front end part. A fixing hole 131 in which the fixing protrusion 112 is engaged with the fixing protrusion 112 is formed on the upper surface of the rear end portion.

The plug connection terminals 140 and 150 are connected to the socket connection terminal 250 such that the plug connection terminals 141 and 151 are exposed to the front end of the plug connection part 115, And are arranged in plural in the width direction.

At this time, any one of the plug connection terminals 140 and 150, that is, the plug connection terminal 150 disposed on the outermost one of the widthwise direction of the plug mold 110, has a ground terminal 155 on the upper side of the center Respectively.

In addition, the metal shell 130 may include a vertical ground piece 136 protruding from a rear side of the vertical ground piece 136 and extending vertically from the rear side of the vertical ground piece 136, The horizontal grounding piece 138 is formed to protrude a predetermined length backward longer than the grounding piece 136.

The mounting groove 111a is recessed in the central portion of the mold body 111 of the plug mold 110 so that the grounding hole 111b is formed on the mounting groove 111a so as to communicate with the inside of the mounting groove 111a.

The ground terminal 155 protruding from the center of the plug terminal 150 may be exposed to the outside of the mold body 111 through the ground hole 111b.

The micro USB connector plug 100 according to the present invention having the above-described configuration is particularly characterized in that one side of the end of the horizontal ground piece 138 is connected to one side of the rear end of the ground terminal 155 of the plug connection terminal 150 It is important to be able to

The horizontal grounding piece 138 protrudes from the rear side of the metal shell 130 by a predetermined upward angle and then extends horizontally by a predetermined length. The horizontal grounding piece 138 protrudes from the grounding end 155 of the plug- A horizontal contact protruding portion 138a is formed to protrude from one side surface of the end portion facing the rear side.

At this time, it is preferable that the horizontal contact protrusion 138a is protruded to be rounded when viewed from the plane, so that the horizontal contact protrusion 138a is kept in contact with the rear side of the grounding end 155.

In particular, although not shown in the drawing, the horizontal contact protrusion 138a is protruded in a round shape as viewed from a plane, so that the state of contact with the rear side of the ground terminal 155 is more stably maintained. Or may be provided in a shape.

The grounding end 155 is formed on the top surface of the front end so that the top end of the grounding end 155 can be in contact with the vertical grounding piece 136. [ It is preferable that the protrusions 156 are protruded.

At this time, the vertical contact protrusions 156 are formed to protrude upward in a rounded shape when viewed from the side so as to be kept in contact with the lower surface of the vertical ground piece 136.

In addition, the vertical contact protrusions 156 may protrude upward while protruding roundly when viewed from the side, so that the state of contact with the lower surface of the vertical ground contact piece 136 is more stably maintained. Or may be provided in a shape.

The vertical grounding piece 136 is provided at a lower surface thereof with a predetermined length upwardly inclined forward from the lower edge of the rear end so that the vertical contact protrusion 156 of the grounding end 155 can be pressed and touched by a tension action, It is preferable that the upper surface of the vertical contact protrusion 156 of the step 155 is formed with the ground inclined surface 136a guided downward.

It is also important that the upper end of the vertical contact protrusion 136 can be brought into pressure contact with the lower surface of the ground slope 136a by a tension action.

Therefore, it is preferable that the ground terminal 155 is bent in the shape of "a" at the upper side of the central portion of the plug connection terminal 150 and protruded by a predetermined length.

In other words, the grounding end 155 is bent toward the front side in an "a" shape on the upper side of the central portion of the plug connection terminal 150 and is protruded by a predetermined length so that the vertical contact protrusion 156 is tensed It can be brought into pressure contact with the rear side of the ground inclined surface 136a of the vertical ground piece 135 by a tension action while being guided by the ground inclined surface 136a of the vertical ground piece 135. [

According to the micro USB connector plug 100 of the present invention as described above, the micro USB connector plug 100 includes a vertical ground piece 136 protruding from a rear side at a predetermined upward angle and extending in a predetermined length in the horizontal direction, A metal shell 130 having a horizontal grounding piece 138 protruding from the rear end of the rear end of the vertical grounding piece 136 to a length longer than the vertical grounding piece 136 and a horizontal grounding piece 138 projecting upward from the center of the grounding piece 136, A plug connection terminal 150 having a grounding end 155 and a horizontal grounding piece 138 in contact with the rear end of the grounding end 155 is provided to provide a double contact structure so that any one of the contact portions is not deformed The other contact portion can be contacted.

The vertical grounding piece 136 and the horizontal grounding piece 138 are provided in a double contact structure in which the grounding end 155 and the grounding end 155 are disposed at the rear side of the grounding end 155, By allowing one contact portion to be contacted, the grounding via the double contact structure can be made more stable unlike the conventional single contact structure.

Further, a vertical ground piece 136 protruding from a rear side of the vertical ground piece 136 by a predetermined angle after being inclined upwards at a predetermined angle and extending from the rear end of the vertical ground piece 136, A metal shell 130 having a horizontal grounding piece 138 protruding in the longitudinal direction and a grounding end 155 projecting upward from the center of the grounding portion and contacting with the vertical grounding piece 136 in the vertical direction, The plug connector terminal 150 with which the horizontal grounding piece 138 is in contact is applied so that the connection between the connection terminal and the metal shell due to the withstand voltage during the connection with the micro USB connector socket 200 in the double- The short circuit can be prevented more stably.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, the invention is not limited thereto. Various modifications may be made by those skilled in the art. Are included in the scope of the present invention.

100: Micro USB connector plug
110: plug mold 111: mold body
111a: Installation groove 111b: Ground ball
112: fixing protrusion 115: plug
130: metal shell 131: fixing hole
133: coupling hole 136: vertical grounding piece
136a: ground inclined plane 138: horizontal ground plane
138a: horizontal contact protrusion 140, 150: plug-in terminal
141, 151: plug connection terminal 155: ground terminal
156: vertical contact protrusion 160: engaging pin
161: engaging projection
200: Micro USB connector socket
210: socket mold 215: socket connection
230: socket housing 250: socket connection terminal

Claims (7)

A socket mold 210 having a socket connection terminal 250 provided at a portable terminal such as a mobile phone and having a socket connection part 215 at one side and a micro USB connector socket 200 including a socket housing 230, A micro USB connector plug (100) connected and connected for charging,
A plug mold 110 in which a plug connecting portion 115 connected to the socket connecting portion 215 of the micro USB connector socket 200 is protruded forward of the mold body 111; A metal shell 130 wrapped around the plug connection 115; And the plug connection terminals 141 and 151 that are in contact with the socket connection terminal 250 are protruded upward from the front end so that the plug connection ends 141 and 151 are exposed to the front end of the plug connection portion 115, And plug-in terminals (140, 150) in which a plurality of plug-in terminals are installed in the width direction of the mold (110)
The metal shell 130 is horizontally extended by a predetermined angle after being inclined upwards at a predetermined angle to the front side of the rear side of the metal shell 130. The vertical grounding piece 136 is protruded from one side of the rear surface of the metal shell 130, A horizontal grounding piece 138 is formed to protrude a predetermined length backward longer than the grounding piece 136,
The mounting groove 111a is recessed in the central portion of the mold body 111 of the plug mold 110 so that the grounding hole 111b is formed on the mounting groove 111a so as to communicate with the inside of the mounting groove 111a,
One of the plug connection terminals 140 and 150 has a ground terminal 155 protruded on the upper side of the central portion so that the ground terminal 155 is exposed to the outside of the mold body 111 through the ground hole 111b And the micro USB connector plug is assembled.
The method according to claim 1,
And the other end of the end of the horizontal grounding piece 138 is brought into contact with the rear end of the grounding end 155 of the plug connection terminal 150,
Wherein the horizontal ground piece (138) has a horizontal contact protrusion (138a) protruded from one side of an end portion of the plug connection terminal (150) opposite to the rear end of the ground terminal (155).
3. The method of claim 2,
So that the horizontal contact protrusion 138a is kept in contact with the rear side of the ground terminal 155,
Wherein the horizontal contact protrusion (138a) protrudes while being projected in a planar shape and is provided with a serrated shape.
The method according to claim 1,
So that the upper end surface of the ground terminal (155) can be in contact with the vertical ground piece (136)
And a vertical contact protrusion (156) protruding from the ground terminal (155) is formed on an upper surface of the ground terminal (155) so as to contact the lower surface of the ground contact piece (136).
5. The method of claim 4,
The vertical ground contact piece 136 is held in contact with the lower surface of the vertical ground contact piece 136,
Wherein the vertical contact protrusion (156) protrudes upward while being rounded when viewed from the side, and the protruded line is provided in a saw-tooth shape.
5. The method of claim 4,
The vertical grounding piece 136 is formed so that the vertical contact protrusion 156 of the grounding end 155 can be brought into pressure contact with a lower surface thereof by a tension action,
And a ground inclined surface (136a) guided while the upper surface of the vertical contact protrusion (156) of the ground terminal (155) is downwardly inclined upward by a certain length toward the front side at the rear end lower corner.
The method according to claim 6,
The ground terminal 155 of the plug connection terminal 150 is grounded such that the upper surface of the vertical contact protrusion 136 can be brought into pressure contact with the lower surface of the ground inclined surface 136a by a tension action,
Is bent at an upper side of the central portion of the plug connection terminal (150) in a "a " shape to protrude forward and is protruded by a predetermined length.

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