KR101997076B1 - Micro-usb connector - Google Patents

Abstract

The present invention relates to an improved micro USS connector to simplify configuration and to be structurally reinforced. The present invention provides a micro USB connector which includes a plug mold, a metal shell, a latch, a circuit board, a plurality of plug connection terminals, and a shield can. Exposed holes and insertion grooves are formed to insert the latch into both sides of the plug mold and protrude and expose the front end of the latch. The side edge of the insertion groove is provided with a chamfer (C) of 0.3 mm or more.

Description

Micro USB connector < RTI ID = 0.0 > {MICRO-USB CONNECTOR}

The present invention relates to a micro USB connector, and more particularly, to an improved micro USB connector that is simple in construction and structurally reinforced.

Generally, a universal serial bus (USB) connector is connected to a USB socket, such as a computer, which is a communication port provided for inputting / outputting data to / from a terminal.

On the other hand, portable terminals such as mobile phones are also performing data input / output using USB communication.

As described above, the USB socket used in a portable terminal such as a mobile phone is used with a micro USB socket formed in a small size due to the characteristics of a small size portable terminal.

Micro USB connectors have been developed for use with these micro USB receptacles.

However, the micro USB connector is provided with five connection pins, and its use is limited to the connection with the USB terminal of the computer, so that the micro USB connector has a problem that it can not be used for data transfer requiring a large number of connection pins.

In order to solve such a problem, an improved C-type micro USB connector has been developed which can be used in combination with a micro-USB socket without being divided into two directions. It is used for transmission.

In the C type micro USB connector as described above, the plug connection terminals including the connection pins and the mounting terminals are inserted and fixed to the inside of the plug portion so as to be spaced upward and downward, but arranged at a predetermined distance from each other.

Although the C type micro USB connector can transmit various data, it has a structure in which plug connectors are inserted and fixed so as to be arranged in a plurality of upper and lower portions, respectively, so that the assemblability is significantly lowered and the productivity is significantly lowered.

A micro USB connector plug, which improves the above problems, is disclosed in Japanese Patent Application No. 10-1736905 (registered May 11, 2017).

The micro USB connector plug of the aforementioned patent is shown in Figs. 1 and 2. Fig.

FIG. 1 is a perspective view showing a micro USB connector plug of the above-mentioned patent, and FIG. 2 is a rear perspective view of the essential part of FIG.

1 and 2, the micro USB connector plug 100 includes a plug mold 110, a metal shell 140, upper and lower support frames 120 and 130, a latch 150, and a plurality of plug connection terminals 161, ).

The plug mold 110 has a plug connecting portion 111 connected to the micro-solder socket protruded forward of the mold body portion 115 and a coupling protrusion 116 protruding from the rear upper and lower surfaces.

The metal shell 140 is formed with an insertion through hole 241 so as to be coupled to the plug connection portion 111 while the coupling hole 146 is formed to correspond to the coupling protrusion 116 on the lower end, .

The lower support frame 130 is formed with a plurality of lower contact pieces 133 that are inclined backward and downward so as to be bent and formed in the lower support frame 130. The upper support frame 120 is formed with a plurality of upper contact pieces 123, do.

An upper support piece 121 is bent in a 'C' shape on the upper support frame 120 and a lower support piece 131 is bent in a 'C' shape on the lower support frame 130 .

 Assembly grooves 112a and 112b are formed in the plug connection portion 111 so that the upper and lower support frames 120 and 130 can be assembled and fixed to the front portion of the plug connection portion 111 from above and below.

The upper support frame 120 is formed with the upper assembly piece 122 bent downward from both sides of the front and the lower support frame 130 has a lower assembly piece 132 selectively fixed from below the assembly groove 112b And is upwardly bent from both front sides.

In addition, the latch 150 is inserted and fixed from the rear sides of the plug mold 110 to restrain the socket connection.

In addition, the plurality of plug connection terminals 161, 162, and 163 have connection ends 161a, 162a, and 163a spaced upward and downward or a pair of upper and lower ends of the front end portion and protruding forward.

One of the plug connection terminals 161 of the plug connection terminals 161, 162 and 163 is inserted and fixed from the rear of the mold body portion 115 of the plug mold 110 to be inserted into the plug mold 110 A pair of upper and lower connecting terminals 161a spaced apart from each other in a front end portion of the mounting substrate 161a and a rear end portion of the mounting substrate 161a spaced upward and downward to be mounted on the front and rear ends of the mounting board, An end portion 161b is formed.

The plug connection terminal 162 is also inserted into the plug mold 110 from the rear of the mold body portion 115 and has a connection end portion 162a protruding forward on the upper side of the front end portion, And a mounting end portion 162b protruding upward from the upper side so as to be mounted on the upper surface of the front end portion of the mounting substrate.

The plug connection terminal 163 is inserted and fixed from the rear of the mold body 115 and is inserted into the plug mold 110 and has a connection end 163a protruding forward from the lower end of the front end, And a mounting end portion 163b protruding downward to be mounted on the upper surface of the front end portion of the substrate is formed.

The plug mold 110 is formed with insertion grooves 117 at regular intervals in the width direction from the rear surface of the mold body portion 115.

As described above, the micro-USB connector plug 100 is provided with the plug connection terminal 161 having the pair of connection ends 161a, thereby improving the assembling property of the plug connection terminal 161, The workability can be improved, and the productivity can be further improved.

However, since the conventional micro USB connector plug 100 having the above advantages has the complicated structure of the upper and lower support frames 120 and 130, not only the assembling property and the productivity are remarkably lowered, Provides a significant increase in the cause.

In the conventional micro USB connector plug 100, a coupling protrusion 116 and a coupling hole 146 are formed in the plug mold 110 and the metal shell 140 so that the plug mold 110 and the metal shell 140 are engaged with each other. The metal shell 140 and the metal shell 140 are separated from each other by the coupling protrusion 116 and the coupling hole 146 so that the metal shell 140 and the plug mold 110 are separated from each other. There was a problem of being separated.

Further, the shape of the latch 150 is not a shape that can be mounted on the mounting board, and the latch 150 is released from the originally assembled position due to the absence of the slide preventing structure, thereby providing a cause of product failure.

The mounting end portions 150a of the latch 150 and the mounting end portions 162b and 163b of the plug connection terminals 162 and 163 are structurally weakened to cause warping or breaking at the time of assembling the latch 150, .

The insertion groove 111a into which the latch 150 is inserted is formed at a right angle so that the shape of the insertion groove 111a is collapsed while the latch 150 is inserted and insertion of the latch 150 is difficult , The flow of the molten resin during plastic injection molding is deteriorated to cause an injection failure, and the structure is weakened to provide a cause of product failure.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a micro USB connector which can simplify a structure, reinforce a structure of each component, improve assembling property, It has its purpose.

According to an aspect of the present invention, there is provided a micro USB connector,

A micro USB connector comprising a plug mold, a metal shell, a latch, a circuit board, a plurality of plug connection terminals, and a shield can,

The plug mold has an opening and an insertion groove formed on both sides of the plug mold for inserting the latch and exposing the front end of the latch,

The side edge of the insertion groove has a chamfer (C) of 0.3 mm or more.

In the present invention, the latch has a 'U' -shaped substrate inserting portion formed at the rear end so as to be closely contacted with the upper and the lower surfaces of the circuit board, and after being inserted into the plug mold, The hook portion is formed.

In the present invention, the hook portion is formed by cutting a part of the latch, and is formed to be inclined at an angle.

In the present invention, at least one step portion is formed at the tip of the substrate inserting portion of the latch.

In the present invention, at least one stepped portion is formed on the tip end portion of the board mounting portion of the plug connection terminal.

In the present invention, a plurality of insertion holes are formed in the plug mold so that the plug connection terminal is inserted from behind the plug mold, and a reinforcing portion is formed under the insertion hole.

In the present invention, a cutting portion formed by partially cutting the lower portion of the insertion hole of the plug connection terminal is formed.

In the present invention, one first coupling protrusion is formed on one surface of the plug mold, two second and third coupling protrusions are formed at regular intervals on the other surface, and the first, The first and second rear engagement holes are formed on one surface of the metal shell correspondingly and the second and the third rear engagement holes are formed on the other surface of the metal shell at regular intervals and the first and second rear engagement holes are formed on one surface and the other surface of the metal shell, The first, second, and third engaging projections are formed forward of the two or three rear engagement holes, and the first, second, and third forward engagement holes are formed forward of the first, second, and third engagement projections.

In the present invention, one surface and the other surface of the shield can are engaged with the first, second, and third engaging projections, and at the same time, toward the plug mold so as to be constrained to the first, second, And the first, second and third projecting lower restraint portions are formed.

In the present invention, the first, second and third mold successes are formed such that the first, second and third downward projecting restricting portions are formed behind the first, second and third projecting restricting portions of the shield can, The second, and third latching protrusions and the first, second, and third coupling protrusions are exposed.

According to the embodiment of the present invention, the latches are structurally reinforced and the insertion grooves into which the latches are inserted are also structurally reinforced to facilitate the insertion of the latches. Likewise, a large number of plug connection terminals are also structurally reinforced, The terminals are not deformed and defects are not generated, and these plug connection terminals are easily assembled.

By making the plug mold, the metal shell, and the shield can be coupled and constrained, the plug mold, the metal shell, and the shield can can be easily assembled and can not be disassembled unless they are forcibly disassembled.

Therefore, the plug mold, the metal shell and the shield can keep the assembly position and attitude at all times during use, so that the assembly failure and the failure during use do not occur.

Since the structure is very simple, the assemblability and the productivity are improved, and the manufacturing cost is reduced.

1 is a perspective view illustrating a micro USB connector plug according to a conventional art.
Fig. 2 is a rear perspective view of the essential part of Fig. 1; Fig.
3 is an assembled perspective view of a micro USB connector according to the present invention;
FIG. 4 is an exploded perspective view of the configuration of the recess in FIG. 3; FIG.
5 is an exploded perspective view of Fig.
FIG. 6 is a detailed exploded perspective view of FIG. 3; FIG.

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

3 is an assembled perspective view of a micro USB connector according to the present invention.

FIG. 4 is an exploded perspective view of the configuration of FIG. 3, and FIG. 5 is an exploded perspective view of FIG.

Fig. 6 is a detailed exploded perspective view of Fig.

Prior to the description, the structure and operation of a general micro USB connector will be described with reference to FIGS. 1 and 2, and only the characteristic structure and operation of the micro USB connector according to the present invention will be described.

3 to 6, a micro USB connector 200 according to the present invention includes a plug mold 210, a metal shell 240, a circuit board 220, a latch 250, and a plurality of plug connection terminals 261, 262, and 263, and a shield can 230.

This will be described in more detail.

First, the plug mold 210 is formed with a plug connecting portion 211 connected to a micro-solder socket protruded forward of the mold body portion 215.

In addition, a first coupling protrusion 212 is formed on one surface of the plug mold 210, and two second and third coupling protrusions 212a and 212b are formed on the other surface at regular intervals.

One first rear coupling hole 244 is formed on one surface of the metal shell 240 corresponding to the coupling protrusions 212, 212a and 212b and two second and third rear coupling holes 244a And 244b are formed at regular intervals.

The metal shell 240 is formed on one surface and the other surface with the first, second and third rear coupling holes 244, 244a and 244b at the same positions as the first, second and third rear coupling holes 244, 244a and 244b First, second and third engaging protrusions 242, 242a, and 242b are formed.

The first, second, and third engaging projections 242, 242a, 242b of the metal shell 240 are disposed at the same positions as the first, second, and third engaging projections 242, 242a, 242b, The engaging holes 243, 243a, and 243b are formed.

The first and second and third and third engagement projections 242, 242a and 242b are engaged with the first and second engagement protrusions 242, 242a and 242b, First and second downward projecting restricting parts 233, 233a and 233b protruding toward the plug mold 210 are formed so as to be confined to the three front coupling holes 243, 243a and 243b.

In order to form the first, second, and third downward projecting restricting portions 233, 233a, 233b at the rear of the first, second, and third downward projecting restricting portions 233, 233a, 233b of the shield can 230, The second and third coupling protrusions 242, 242a, 232b of the metal shell 240 through the first, second and third success 232, 232 and 232b, 242b of the plug mold 210 and the first, second and third coupling protrusions 212, 212a, 212b of the plug mold 210 are exposed.

That is, the first, second, and third downward projecting restricting portions 233, 233a, 233b and the first, second, and third success 232, 232a, 232b of the shield can 230 are also formed on one surface of the shield can 230 One on each side, and two on the other side at regular intervals.

Accordingly, the first, second, and third downward projecting restricting portions 233, 233a, and 233b are inserted and constrained in the first, second, and third front coupling holes 243, 243a, and 243b of the metal shell 240, The first, second, and third coupling protrusions 212, 212a, 212b of the plug mold 210 are coupled to the second and third rear coupling holes 244, 244a, 244b.

The first, second and third coupling protrusions 212, 212a and 212b of the plug mold 210 and the first, second and third front coupling holes 243, 243a and 243b of the metal shell 240 and the first, The second and third rear fixing holes 244 and 244a and 244b and the first and second lower downward projecting restricting portions 233 and 233a and 233b of the shield can 230 are coupled and constrained to each other, ), The metal shell 240 and the shield can 230 are easy to assemble and can not be decomposed unless they are decomposed by force.

Therefore, the plug mold 210, the metal shell 240, and the shield can 230 are always kept in the assembled position and posture during use, so that the assembly failure and the in-use failure are not generated.

Accordingly, the conventional micro USB connector plug 100 described with reference to FIG. 2 and FIG. 3 has a complicated structure, and the assemblability is remarkably reduced, and the upper and lower support frames 120 and 130 are not required to provide a cause of increase in manufacturing cost .

Therefore, the micro USB connector 200 according to the present invention can solve the problem that the conventional micro USB connector plug 100 has poor assemblability and productivity, and the manufacturing cost is increased.

Exposure holes 213 and insertion grooves 214 are formed on both sides of the plug mold 210 so that the latches 250 are inserted and the front ends of the latches 250 are protruded and exposed.

The side edge of the insertion groove 214 has a chamfer (C) of 0.3 mm or more.

The insertion groove 214 is structurally reinforced so that the shape of the insertion groove 214 is maintained while the latch 250 is inserted and insertion of the latch 250 is facilitated, So that the injection molding is good and structurally reinforced.

6, the latch 250 has a U-shaped substrate inserting portion 251 formed at its rear end so as to be closely inserted into the upper and lower surfaces of the circuit board 220, And a hook portion 253 is formed so as to be closely inserted into the plug mold 210.

In addition, the hook portion 253 is cut to a predetermined pressure by cutting a part of the body of the latch 250 so as to be resilient, and by inclining it at a predetermined angle.

Accordingly, the latch 250 is easily inserted into the plug mold 210, and the original position and posture are maintained after the latch 250 is inserted, so that the latch 250 does not fall during assembly or use and does not cause defects.

The substrate inserting portion 251 is structurally reinforced by forming at least one step 252 at the tip of the substrate inserting portion 251 of the latch 250.

Therefore, the latch 250 is not deformed during assembly of the latch 250 or during use, and no defects are generated.

262b and 263b are formed at the tip ends of the board mounting portions 261a 262a 263a of the plurality of plug connection terminals 261 262 263 so that the board mounting portions 261a 262a 263a are structured As shown in FIG.

Therefore, no deformation occurs in the plug connection terminals 261, 262, 263 during assembling or use of the plurality of plug connection terminals 261, 262, 263, so that the plurality of plug connection terminals 261, 262, 263 are structurally reinforced, 210 to facilitate assembly.

However, the step portions as in the present invention are not formed on the plug connection terminals 161, 162, and 163 of the conventional micro USB connector plug 100 described with reference to FIGS. 1 and 2.

That is, the stepped portions as in the present invention are not formed on the mounting end portions 161b, 162b, and 163b of the conventional plug-in terminals 161, 162, and 163, and the mounting end portions 161b, 162b, and 163b do not have a margin.

The mounting ends 161b, 162b and 163b are structurally weak and are not easily inserted into the plug mold 110 and are not easily inserted into the mounting ends 161b, 162b and 163b when inserting the plug connection terminals 161, 162 and 163 And consequently, the conventional plug connection terminals 161, 162, and 163 have caused the cause of the product failure.

6, a plurality of insertion holes 117 are formed in the plug mold 210 such that the plug connection terminals 261, 262, 263 are inserted from the back of the plug mold 210. As shown in FIG.

The insertion hole 117 of the plug mold 210 is formed in the plug mold 210 so that the periphery of the insertion hole 117 of the plug mold 210 becomes fragile. Thereby forming reinforcing portions 117a reinforced with flesh.

Therefore, the insertion of the plug connection terminals 261, 262, and 263 can be stably performed by forming the reinforcing portion 117a.

The cutting portion 117b is formed by partially cutting the lower portion of the insertion hole 117 of the plug connection terminal 261 so that the plug connection terminal 261 can be easily inserted into the insertion hole 117. [

Therefore, insertion of the plug connection terminal 261 can be facilitated by the formation of the cutting portion 117b.

Reference numerals 234 and 235, which are not shown in the drawing, are provided at the rear end of the shield can 230 to hold the cable end of the cable of the micro USB USB connector 200 to be fixed.

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 limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

200. Micro USB connector
210. Plug mold
212. First engaging projection
212a. The second engaging projection
212b. Third engaging projection
230. Shield cans
240. Metal shell
242. The first obstacle
242a. The second obstacle
242b. The third obstacle
244. First rear coupling ball
244a. The second rear-
244b. The third rear coupling ball

Claims (11)

In a micro USB USB connector 200 having a plug mold 210, a metal shell 240, a latch 250, a circuit board 220, a plurality of plug connection terminals 261, 262 and 263, and a shield can 230,
Exposure holes 213 and insertion grooves 214 are formed on both sides of the plug mold 210 so that the latches 250 are inserted and the front ends of the latches 250 are protruded and exposed.
The side edge of the insertion groove 214 is formed such that the chamfer C is 0.3 mm or more,
The first and second downward projecting restricting portions 233, 233a and 233b of the shield can 230 are formed at the rear of the first and second downward projecting restricting portions 233, (233, 232a, 232b) are formed on the bottom surface of the micro USB connector. The method according to claim 1,
The latch (250)
A U-shaped substrate inserting portion 251 is formed at the rear end so as to be closely inserted into the upper and lower surfaces of the circuit board 220,
Wherein a hook portion (253) is formed to be inserted into the plug mold (210) so as to be closely inserted into the plug mold (210). 3. The method of claim 2,
Wherein the hook portion (253) is formed by cutting a part of the latch (250), and is formed to be inclined at a predetermined angle. The method according to claim 1,
Wherein at least one step 252 is formed at the tip end of the substrate inserting portion 251 of the latch 250. The micro- The method according to claim 1,
Wherein at least one stepped portion (261b, 262b, 263b) is formed at the tip end of each of the board mounting portions (261a, 262a, 263a) of the plug connection terminals (261, 262, 263). The method according to claim 1,
A plurality of insertion holes 117 are formed in the plug mold 210 so that the plug connection terminals 261, 262, 263 are inserted from behind the plug mold 210,
And a reinforcing portion (117a) is formed under the insertion hole (117). The method according to claim 6,
And a cutting portion (117b) formed by partially cutting the lower portion of the insertion hole (117) of the plug connection terminal (261) is formed. The method according to claim 1,
One first coupling protrusion 212 is formed on one surface of the plug mold 210 and two second and third coupling protrusions 212a and 212b are formed on the other surface at regular intervals.
One first rear coupling hole 244 is formed on one surface of the metal shell 240 so as to correspond to the first, second and third coupling protrusions 212, 212a and 212b, The rear engagement holes 244a and 244b are formed at regular intervals,
The metal shell 240 has first, second, and third engaging projections 242, 242a, 242b formed on one surface and the other surface thereof in front of the first, second, and third rear coupling holes 244, 244a, 244b,
And the first, second, and third front coupling holes (243, 243a, 243b) are formed in front of the first, second, and third locking projections (242, 242a, 242b). 9. The method of claim 8,
The shield can 230 is engaged with the first, second and third engaging projections 242, 242a, 242b and the first, second and third engaging projections 242, 242a, 242b, And the first, second, and third downward projecting restricting portions (233, 233a, 233b) protruded toward the plug mold (210) so as to be confined to the three forward coupling holes (243, 243a, 243b). delete 9. The method of claim 8,
The first, second and third locking projections 242, 242a, 242b and the first, second and third coupling protrusions 212, 212a, 212b are exposed through the first, second and third successes 232, 232a, Wherein the micro USB connector is a micro USB connector.

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