WO2016003032A1

WO2016003032A1 - Micro usb connector plug

Info

Publication number: WO2016003032A1
Application number: PCT/KR2014/011586
Authority: WO
Inventors: 김정섭; 정웅규
Original assignee: 주식회사 신화콘텍
Priority date: 2014-07-03
Filing date: 2014-11-28
Publication date: 2016-01-07

Abstract

The present invention relates to a micro USB connector plug, and the present invention is separately configured into a front connection terminal, having a plug connection end at a front end of any one of plug connection terminals, and a rear connection terminal so as to allow the front connection terminal and the rear connection terminal to be selectively connected by means of a PTC element, such that when heating starts while an electrical resistance of the plug connection terminal increases during the use thereof, heat can be lowered by decreasing a current amount if at least a predetermined temperature rises caused by the heat, thereby preventing an overheating phenomenon of the plug connection terminal according to an increase in electrical resistance and simultaneously preventing an accident, such as a burn on a user, and damage to parts, due to the overheating phenomenon, can be prevented.

Description

Micro usb connector plug

The present invention relates to a micro USB connector plug, and more specifically, any one of the plug connection terminal is separated into the front connection terminal and the rear connection terminal, the rear contact terminal is provided with an upper contact at the rear end of the front connection terminal A lower contact hole is provided at the front end of the lower part to selectively insert and secure a PTC element between the upper contact hole and the lower contact hole in a sliding type, or any one plug connection terminal may be separated into a front connection terminal and a rear connection terminal. A PTC element is provided at the rear end of the front connection terminal and is provided with a rear connection clip at the front end of the rear connection terminal and is fixed to the bottom surface of one side of the wire connection cap from the top of the front connection clip and the rear connection clip. Is inserted and fixed, the electric resistance of the plug connection terminal increases, When the temperature rises above a certain temperature, the current can be lowered to lower the heat, thereby preventing overheating of the plug connection terminal due to an increase in the electrical resistance, and at the same time, a safety accident such as a user being burned due to the overheating phenomenon. The present invention also relates to a micro USB connector plug which prevents damage to a component due to overheating as well as preventing it.

In general, a micro USB connector plug is used to input / output or charge data using a USB terminal in a portable terminal such as a mobile phone, and is connected to a micro USB connector socket provided for input / output or charging of the data in the portable terminal. To use.

Here, the micro USB connector socket provided in a portable terminal such as a mobile phone is generally composed of a socket mold protruding from the socket connection portion, a socket housing coupled to surround the socket mold, a plurality of socket connection terminals on one side of the socket connection portion Is formed.

The conventional micro USB connector plug used to be connected to the micro USB connector socket is composed of a plug mold with a plug connection part protruding, and a metal shell coupled to surround the plug connection part of the plug mold. At the front end of the connecting portion, a plurality of plug connecting terminals are built in the plug mold such that a plurality of plug connecting terminals are formed in front of the plug connecting terminal in contact with the socket connecting terminal of the micro USB connector socket. The wire connection cap into which a plurality of wires are inserted from the top is fixed.

That is, the micro USB connector plug is a plug connection terminal protruding upward in front of the plug connection terminal to contact the socket connection terminal, and is used in connection with the micro USB connector socket.

However, in the conventional micro USB connector plug as described above, the plug connection terminal is overheated due to an increase in the electrical resistance of the plug connection terminal that is in contact with the socket connection terminal, especially when used for charging, and thus heats through the metal shell. There is a problem that the conduction, due to the metal shell heat is conducted by this overheating phenomenon has caused a safety accident, such as a user burns and damage to the parts.

Therefore, when the electric resistance of the plug connection terminal increases during use, when the heating starts to rise above a certain temperature, the current can be dropped to lower the heat, thereby preventing overheating of the plug connection terminal due to the increase in the electrical resistance. At the same time, there is a need for research and development on a micro USB connector plug that prevents a user from being burned due to overheating and prevents damage to a component due to overheating.

In order to solve the above problems, the present invention is configured to separate any one of the plug connection terminal into the front connection terminal and the rear connection terminal, provided with an upper contact hole in the rear end of the front connection terminal and the front end of the rear connection terminal A lower contact hole is provided at the bottom to selectively insert and secure a PTC element between the upper contact hole and the lower contact hole in a sliding type, or any one of the plug connection terminals may be configured as a front connection terminal and a rear connection terminal, but the front connection may be performed. The front connection clip is provided at the rear end of the terminal, and the rear connection clip is provided at the front end of the rear connection terminal, and the PTC element assembled and fixed to the bottom of one side of the wire connection cap from the top of the front connection clip and the rear connection clip is fixed. When the heat resistance starts when the electric resistance of the plug connection terminal increases, Fend off the current aims to provide a micro-connector plug yueseubi one to let down the heat.

In addition, the technology according to the present invention, when the heat resistance starts when the electric resistance of the plug connection terminal increases in use, when the heat rises above a certain temperature due to heat generation, the amount of current can be lowered so that the heat can be lowered. The purpose of the present invention is to prevent overheating and to prevent safety accidents such as burns caused by the user due to the overheating, and to prevent damage to components due to overheating.

The present invention for achieving the above object 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, the socket mold having a socket connection portion is fixed to one side of the socket connection terminal, and the input and output or charging of data in the micro USB connector socket including a socket housing A micro USB connector plug connected for connection, comprising: a plug mold in which a socket connection part and a front part of the micro USB connector socket are connected and connected; A metal shell coupled to surround the plug mold front part; A plug connection terminal in which a plurality of plug connection terminals which are in contact with the socket connection terminal are formed to protrude upward at a front end thereof so that a plurality of plug connection terminals are installed in a width direction of the plug mold such that the plug connection end is exposed to a front end of the plug mold; And a wire connection cap connected to a plurality of electric wires from a rear side and coupled from an upper portion of a rear side of the plug mold to cover a rear end of the plug connection terminal disposed on an upper surface of the rear side of the plug mold, wherein among the plug connection terminals. One of the plug connection terminals is configured to be separated into a front connection terminal having a plug connection end and a rear connection terminal, and the front connection terminal and the rear connection terminal are selectively connected and connected by a PTC element.

Here, the plug mold is formed to protrude toward the front of the mold body, the plug connection portion is coupled to the socket connection portion, the metal shell is coupled to surround the plug connection, while the front connection terminal has an upper contact hole at the rear end The rear connection terminal is provided with a lower contact hole facing the upper contact hole at a front end to have a predetermined distance, and the PTC element is selectively slidably coupled between the upper contact hole and the lower contact hole so that the front connection is made. It is desirable to selectively connect and connect the terminal and the rear connection terminal.

In this case, the upper contact hole is preferably formed to be bent round to the inside downward in a pair with a predetermined interval so that the upper surface of the PTC device can be connected in a two-contact structure.

In addition, it is preferable that the lower contact hole is formed such that the contact protrusion protrudes in the center of the upper surface so that the lower surface of the PTC device can be connected and connected in a single contact structure.

In addition, the lower contact hole is formed in the contact protrusion projected in a circular shape with a predetermined interval on the upper surface so that the lower surface of the PTC element can be connected in a three-contact structure, the contact projection is formed in a zigzag type with a predetermined interval in three protrusions. Is good.

The plug mold includes a plug mold cap in which a plug connection portion connected to the socket connection portion protrudes forward, and a plug mold housing coupled and fixed from the rear of the plug mold cap, wherein the metal shell is the plug mold cap. It is coupled while wrapping the plug connection portion of the wire connection cap, the PTC element is assembled and fixed to the bottom surface of the one side when the connection of the wire connection cap, the PTC element to selectively connect and connect the front connection terminal and the rear connection terminal; Can be.

At this time, the front connection terminal is provided with a front connection clip of the "U" shape at the rear end, the rear connection terminal is provided with a "U" shaped rear connection clip at the front end, while the PTC element is When the front connection cap is coupled, it is preferable that the front and rear lower ends are inserted and fixed by the front connection clip and the rear connection clip to selectively connect and connect the front connection terminal and the rear connection terminal.

In addition, the front connection clip is provided in a "U" shape is bent to have an inequality shape curved inward on one side, the rear connection clip is also provided in a "U" shape inequality curved inward on one side upper Bend is formed to have a shape, the PTC element is preferably elastically fixed to the lower side of the front, rear by the front connection clip and the rear connection clip.

The PTC device is assembled and fixed to one bottom surface of the wire connection cap, and is inserted into an assembly groove formed to be recessed upward from one bottom surface of the wire connection cap, while a fixing hook is further provided on one side of the assembly groove. The lower edge portion of one side of the PTC device may be locked.

In addition, a fixing groove is formed on one side of the assembly groove formed on one side bottom of the wire connection cap, and the PTC device may be fixed to the bottom surface by a fixing piece having one side inserted into the fixing groove.

At this time, the fixing piece is provided with a plate to be fixed to a certain area of the bottom surface of the PTC element fixed frame that is selectively inserted and fixed in the fixing groove, and extends a predetermined length perpendicular to the fixed frame It is preferable to include a support frame extending in a horizontal direction from the end of the frame and the extended frame corresponding to the width of the bottom surface of the PTC element in close contact with the bottom surface of the PTC element.

In addition, the plug mold housing has a separation wall formed at a center portion, an insertion protrusion protruding from the front side of the front of the separation wall, and a protrusion formed at the rear upper surface of the insertion protrusion, and both front sides of the separation wall. The engaging projection is formed to protrude but the engaging projection is formed with a protruding jaw so that the end is formed on the outside, the plug mold cap is formed on the rear upper side of the locking groove is fixed to the locking projection is formed, the coupling protrusion is coupled to both rear sides It is preferable that the coupling groove is formed to be fixed, but the coupling groove is formed with a guide groove into which the protruding jaw is guided and fixed to one side of the outer side, and communicates with the upper side of the plug connection part from both sides of the rear surface to form a pin fixing groove.

Here, it is preferable that the coupling pin is inserted and fixed through the pin fixing groove of the plug mold cap, and the coupling pin protrudes from the front end of the coupling pin so that the coupling protrusion protrudes upward from the front end of the plug connection part.

In this case, the plug mold cap has a fixed protrusion protrudingly formed at the center of the rear end upper surface, and the metal shell corresponds to the fixing protrusion on the rear end upper surface so as to be coupled to surround the plug connection part of the plug mold cap. It is preferable that the fixing holes to which the projections are coupled to be fixed are formed in a pair, while the coupling holes to which the coupling protrusions which are provided to protrude upward at the front end of the plug connection part are formed to penetrate at both sides of the upper surface of the front end of the plug.

Referring to the effect of the micro USB connector plug according to the present invention.

First, any one plug connection terminal is separated into a front connection terminal and a rear connection terminal, but the upper contact hole is provided at the rear end of the front connection terminal and the lower contact hole is provided at the front end of the rear connection terminal. Selectively insert and fix the PTC element in the sliding type between the sphere and the lower contact hole, or separate any one plug connection terminal into the front connection terminal and the rear connection terminal, and the front connection clip is provided at the rear end of the front connection terminal. And a rear connection clip is provided at the front end of the rear connection terminal, and a PTC element assembled and fixed to one bottom surface of the front connection cap is inserted and fixed from the top of the front connection clip and the rear connection clip, thereby increasing the electrical resistance of the plug connection terminal. When the heat is started, if the heat rises above a certain temperature due to the heat, the current amount can be lowered to lower the heat.

Second, when the electric resistance of the plug connection terminal increases during use, when the heating starts, if the temperature rises above a certain temperature due to the heating, the current amount can be lowered to lower the heat, thereby preventing overheating of the plug connection terminal due to the increase in the electrical resistance. At the same time, it is possible to prevent safety accidents such as burns of the user due to overheating, and to prevent damage to parts due to overheating.

1 is a perspective view of a total separation showing a micro USB connector plug according to a first embodiment of the present invention.

Figure 2 is an exemplary view showing a structure in which the PTC element and the wire connection cap is assembled in the micro USB connector plug according to the first embodiment of the present invention.

Figure 3 is an overall assembled perspective view showing a micro USB connector plug according to the first embodiment of the present invention.

Figure 4 is a cross-sectional view showing a contact state of the PTC element in the micro USB connector plug according to the first embodiment of the present invention.

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

6 is a perspective view showing the main parts of another embodiment of a plug connection terminal which is a main part in a micro USB connector plug according to the first embodiment of the present invention;

Figure 7 is a perspective view of the entire separation showing a micro USB connector plug according to a second embodiment of the present invention.

8 is an exploded perspective view showing a structure in which a wire connection cap is coupled to a micro USB connector plug according to a second embodiment of the present invention.

9 is a perspective view showing the main part of the micro-USB connector plug according to the second embodiment of the present invention showing a structure in which it is inserted into and fixed to a plug connection terminal of a PTC element fixed to one bottom surface of a wire connection cap by a fixing piece;

FIG. 10 is a perspective view of a main part separating perspective view illustrating a structure in which a plug mold housing and a plug mold cap are coupled to each other in a micro USB connector plug according to a second embodiment of the present invention; FIG.

11 is a cross-sectional view illustrating a structure in which a PTC element is inserted and fixed in a micro USB connector plug according to a second embodiment of the present invention;

12 is an overall assembled perspective view showing a micro USB connector plug according to a second embodiment of the present invention.

FIG. 13 is a cross-sectional view illustrating a state in which a micro USB connector plug is connected to a micro USB connector socket according to a second embodiment of the present invention. FIG.

100: micro USB connector plug

101: plug mold

110: plug mold housing

111: separation wall 113: insertion protrusion

114: engaging projection 115: coupling protrusion

116: protruding jaw

111 ': Mold body 112': Fixing protrusion

115 ': Plug connection

120: plug mold cap

121: plug connection 122: fixing protrusion

123: pin fixing groove 124: locking groove

125: coupling groove 126: guide groove

130: metal shell

132: fixing hole 136: coupling hole

140, 150: Plug connection terminal

141, 151: Plug connection terminal 153: Front connection terminal

154 ': Front access clip 154: Upper contact hole

157: rear connection terminal 158 ': rear connection clip

158: lower contact hole 159: contact projection

160: coupling pin 161: coupling protrusion

170: PTC device

180: wire connection cap

181: assembly groove 182: fixed hook

183: fixing groove

190: fixed piece

191: fixed frame 192: extension frame

193: support frame

200: micro USB connector socket

210: socket connection terminal 220: socket connection terminal

230: socket mold 250: socket housing

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

1 is an overall separated perspective view showing a micro USB connector plug according to a first embodiment of the present invention, Figure 2 is assembled with a PTC element and a wire connecting cap in the micro USB connector plug according to the first embodiment of the present invention It is an exemplary figure which shows the structure which becomes.

FIG. 3 is a perspective view showing an overall coupling of a micro USB connector plug according to a first embodiment of the present invention. FIG. 4 is a cross-sectional view showing a contact state of a PTC device in a micro USB connector plug according to a first embodiment of the present invention. 5 is a cross-sectional view illustrating a state in which a micro USB connector plug according to a first embodiment of the present invention is connected to a micro USB connector socket.

As shown in Figures 1 to 5, the micro USB connector plug 100 according to a preferred embodiment of the present invention is provided in a portable terminal such as a mobile phone but the socket connection portion 210 is fixed to the socket connection terminal 220 on one side The branch is connected to the socket mold 230 and the micro USB connector socket 200 including the socket housing 250 for input / output or charging of data.

The micro USB connector plug 100 is broadly classified to include a plug mold 101, a metal shell 130, plug

connection terminals

140 and 150, and a wire connection cap 180.

Here, the plug mold 101 is a plug connecting portion 115 'which is connected to the socket connecting portion 210 of the micro USB connector socket 200 protrudes toward the mold body 111'.

At this time, the coupling protrusion 161 is provided on both sides of the upper surface of the front end portion of the plug connection portion 115 ', and the coupling protrusion 161 is the mold body 111' opened from the plug mold 101. It is provided at the front end of the coupling pin 160 is inserted through the rear.

In addition, it is preferable that a pair of fixing protrusions 112 'protrude upward from the front side upper surface of the mold body 111'.

In addition, the metal shell 130 is coupled to surround the plug connection portion 115 ', and the coupling protrusion 161 which protrudes upward at the front end of the plug connection portion 115' is coupled to both sides of an upper surface of a front end portion. The fixing hole 136 is formed to penetrate through, while the upper surface of the rear end portion corresponds to the fixing protrusion 112 'and has a pair of fixing holes 132 through which the fixing protrusion 112' is coupled and fixed. .

Meanwhile, the

plug connection terminals

140 and 150 are provided in plural, and the

plug connection terminals

141 and 151 contacting the socket connection terminal 220 protrude upwardly at the front end, so that the plug connection terminals 141, A plurality of 151s are provided in the width direction of the plug mold 101 so as to be exposed to the front end portion of the plug connecting portion 115 '.

In addition, the wire connection cap 180 is connected to a plurality of wires from the rear, the plug connection terminal 140 is coupled to the upper side of the rear side of the plug mold 101 is disposed on the upper surface of the mold body (111 '). , 150) to cover the rear end.

In the micro-USB connector plug 100 according to the present invention as described above, in particular, any one of the plug connection terminal 150 of the

plug connection terminal

140, 150 provided with a plurality of plug connection terminal 151 at the tip The front connection terminal 153 and the rear connection terminal 157 are configured to be separated and the front connection terminal 155 and the rear connection terminal 159 is selectively connected by the PTC element 170.

Here, the front connection terminal 153 is preferably provided with an upper contact hole 154 at the rear end, the rear connection terminal 157 is opposed to the upper contact hole 154 at the front end to a certain distance The lower contact hole 158 is preferably provided to have.

In addition, the PTC device 170 is selectively slidably coupled between the upper contact hole 154 and the lower contact hole 158 to selectively connect and connect the front connection terminal 153 and the rear connection terminal 157. This is desirable.

In this case, the PTC device 170 is one of the thermoelectric devices, and when the temperature rises to a specific temperature, the current flowing decreases as the current flows.

Therefore, when the PTC device 170 is applied as described above, when the resistance value of the current flowing through the plug connection terminal 150 is increased to reach a specific temperature when heat is generated, the current flowing decreases while the heat is reduced. This can be done.

On the other hand, in the micro USB connector plug 100 according to the present invention as described above, in particular, the upper contact hole 154 has a predetermined interval so that the upper surface of the PTC element 170 can be connected in a two-contact structure It is preferred to bend rounded downward in pairs inward.

In addition, the lower contact hole 158 facing the lower side with a predetermined distance from the upper contact hole 154 has a single contact at the center of the upper surface so that the lower surface of the PTC element 170 can be connected and connected with a single contact structure. It is preferable that the protrusion 159 is formed to protrude in a circular shape.

As described above, the PTC element 170 is formed through a contact structure in which the upper contact hole 154 is bent downwardly inwardly and the lower contact hole 158 protrudes from the upper surface thereof. It is inserted and fixed in the sliding type between the upper contact hole 154 and the lower contact hole 158, it can be inserted and fixed with a feeling of elasticity.

Fig. 6 is a perspective view showing the main parts of another embodiment of a plug connection terminal which is a main part in a micro USB connector plug according to the first embodiment of the present invention.

Referring to FIG. 6, the lower contact hole 158 has a predetermined spacing on the upper surface of the lower contact hole 158 so that the lower surface of the PTC element 170 may be connected to each other in a three-contact structure. The protrusion 159 may be formed to protrude in three at regular intervals in a zigzag type.

According to the embodiment of the micro USB connector plug 100 according to the present invention as described above, any one of the plug connection terminal 150 is separated into a front connection terminal 153 and a rear connection terminal 157, the front The upper contact hole 154 is provided at the rear end of the connection terminal 153 and the lower contact hole 158 is provided at the front end of the rear connection terminal 157 so that the upper contact hole 154 and the lower contact hole 158 are provided. By selectively inserting and fixing the PTC element 170 in the sliding type between) when the electric resistance of the plug connection terminal 150 is increased during use, when heat is generated, if the temperature rises above a certain temperature due to heat, the amount of current is dropped to lower the heat. can do.

In addition, when the heat resistance starts when the electric resistance of the plug connection terminal 150 increases while being used, if the temperature rises above a certain temperature due to heat generation, the plug connection terminal 150 according to the increase in the electrical resistance can be lowered by lowering the amount of current. This prevents overheating and prevents accidents such as burns by the user due to overheating, and also prevents damage to parts due to overheating.

7 is a perspective view showing a total separation of the micro USB connector plug according to the second embodiment of the present invention, Figure 8 is a structure in which the wire connection cap is coupled in the micro USB connector plug according to the second embodiment of the present invention A separate perspective view shown.

FIG. 9 is a perspective view showing the main part of the micro-USB connector plug according to the second embodiment of the present invention showing a structure in which a plug is connected to a plug connection terminal of a PTC device fixed to one bottom surface of a wire connecting cap by a fixing piece; FIG. 10 is a partial perspective perspective view showing a structure in which a plug mold housing and a plug mold cap are coupled in a micro USB connector plug according to a second embodiment of the present invention, and FIG. 11 is a micro diagram according to a second embodiment of the present invention. Fig. 12 is a cross sectional view showing a structure in which a PTC element is inserted and fixed in a USB connector plug, and Fig. 12 is an overall assembled perspective view showing a micro USB connector plug according to a second embodiment of the present invention.

FIG. 13 is a cross-sectional view illustrating a state in which a micro USB connector plug according to a second embodiment of the present invention is connected to a micro USB connector socket. FIG.

As shown in FIGS. 7 to 13, the micro USB connector plug 100 according to the second embodiment of the present invention is provided in a portable terminal such as a mobile phone, and a socket connection portion 210 in which a socket connection terminal 220 is fixed at one side thereof. It is connected to the socket mold 230 having a, and the micro USB connector socket 200 including the socket housing 250 for input and output or charging of data.

connection terminals

140 and 150, and a wire connection cap 180.

Here, the plug mold 101 includes a plug mold cap 120 in which a plug connecting portion 121, which is connected to the socket connecting portion 210 of the micro USB connector socket 200, protrudes forward, and the plug mold cap. It is composed of a plug mold housing 110 is fixed from the rear of the 120.

At this time, the plug mold housing 110 has a separating wall 111 is formed in the center portion, the insertion protrusion 113 protrudes to the front side in the front center of the separating wall 111.

In addition, the plug mold housing 110 has a locking protrusion 114 protrudingly formed on an upper surface of the rear side of the insertion protrusion 113, and coupling protrusions 115 protrudingly formed on both front sides of the separating wall 111. The protrusion 115 has a protruding jaw 116 is formed so that the end is formed on the outside.

On the other hand, the plug mold cap 120 constituting the plug mold 101 together with the plug mold housing 110 is formed with a locking groove 124 is fixed to the locking projection 114 on the rear upper side, the rear Coupling grooves 125 to which the coupling protrusions 115 are fixedly coupled are formed on both sides, and the coupling grooves 125 are guide grooves 126 to which guide protrusions 116 are inserted and fixed to the outer surface. .

In addition, the plug mold cap 120 communicates with the upper side of the plug connection portion 121 from both sides of the rear side is formed with a pin fixing groove 123.

It is preferable that the coupling pin 160 is inserted and fixed through the pin fixing groove 123 of the plug mold cap 120 as described above, and the coupling pin 160 has a coupling protrusion 161 protruding from the front end thereof. Coupling protrusion 161 is preferably protruded to the front end of the plug connection portion 121.

Unlike the conventional plug mold 101, the plug mold housing 110 and the plug mold cap 120 is configured to be separated from each other to be coupled to each other, in particular the coupling pin 160 by the separating wall 111 ) And the

plug connection terminals

140 and 150 may be mutually isolated.

In other words, through the structure in which the separating wall 111 is formed as described above, an insulation structure between the coupling pin 160 and the

plug connection terminals

140 and 150 may be implemented, and accordingly, a more stable micro USB connector plug 100 will be provided.

On the other hand, the metal shell 130 is coupled to surround the plug connecting portion 121 of the plug mold cap 120, the rear end corresponding to the fixing projection 122, the fixing projection 122 is coupled to the upper surface Fixing holes 132 to be fixed are formed through the pair.

The metal shell 130 is preferably formed through the coupling hole 136 through which the coupling protrusion 161 which is provided protruding upward from the front end of the plug connection portion 121 is formed on both sides of the upper surface of the front end portion.

In addition, the

plug connection terminals

140 and 150 protrude upward from the

plug connection terminals

141 and 151 contacting the socket connection terminal 220 so that the

plug connection terminals

141 and 151 are connected to the plug connection unit. The plug mold cap 120 and the plug mold housing 110 are provided in plurality in a width direction of the plug mold 101 to which the plug mold cap 120 and the plug mold housing 110 are exposed.

The wire connecting cap 180 is connected to a plurality of electric wires from the rear, and is coupled from the upper side of the plug mold housing 110 rear side of the plug mold 101 and disposed on the rear side upper surface of the plug mold housing 110. Covering the rear ends of the

plug connection terminals

140 and 150.

In the micro-USB connector plug according to the present invention as described above, in particular, any one of the plug connection terminal (140, 150) of the plug connection terminal 150 has a front connection terminal 153 having a plug connection terminal 151 at the front end thereof. ) And a rear connection terminal 157 which is separated from the front connection terminal 153.

In addition, the wire connecting cap 180 is assembled and secured to the PTC device 170 on one side of the bottom surface when the PTC connecting device 170 is coupled to the front connection terminal 153 and the rear connection terminal 180 157 is selectively connected.

On the other hand, of the plug connection terminal 150, the front connection terminal 153 is provided with a front connection clip (154 ') of the "U" shape at the rear end, the rear connection terminal 157 is a front end " A U " shaped rear connection clip 158 'is provided.

And the PTC element 170 is fixed to the front and rear of the lower side of the front connection terminal by the front connection clip 154 'and the rear connection clip 158' when the wire connection cap 180 is coupled to each other. 153 and rear connection terminal 157 is selectively connected.

Moreover, the front connection clip 154 'is provided in a "U" shape, but preferably bent to have an inequality curved inwardly on one side, and the rear connection clip 158' also has a "U" shape. It is preferably provided to be bent to have an inequality shape curved inward on the upper side, wherein the PTC element 170 is the front, rear by the front connection clip 154 'and the rear connection clip 158' It is preferable that the lower side is elastically pressurized.

In addition, the PTC device 170 is assembled and fixed to the bottom surface of one side of the wire connection cap 180, is inserted into the assembly groove 181 formed recessed upward from the bottom surface of the one side of the wire connection cap 180, the assembly A fixing hook 182 is further provided at one side of the groove 181 so that the lower edge portion of one side of the PTC device 170 is locked by the fixing hook 182.

Furthermore, a fixing groove 182 is formed at one side of the assembly groove 181 formed at one bottom of the wire connection cap 180, and the PTC device 170 has one side inserted into and fixed to the fixing groove 183. The fixing piece 190 is fixed to the bottom surface area.

In other words, the fixing piece 190 is provided on a plate so that the fixing piece 190 is fixed to a certain area of the bottom surface of the PTC device 170 and is fixedly inserted into and fixed to the fixing groove 183. And extends in a horizontal direction with respect to a predetermined length corresponding to the bottom width of the PTC element 170 from the end of the extension frame 192 and the extension frame 192 extending perpendicularly orthogonally from the fixed frame 191. It is preferable that the support frame 193 is made to be in close contact with the bottom surface of the PTC device 170.

According to the micro USB connector 100 according to the second embodiment of the present invention as described above, any one plug connection terminal 150 is separated into a front connection terminal 153 and a rear connection terminal 157, The front connecting clip 154 'is provided at the rear end of the front connecting terminal 153 and the rear connecting clip 158' is provided at the front end of the rear connecting terminal 157 so that the front connecting clip 154 'and the rear are provided. As the PTC element 170 assembled and fixed to the bottom of one side of the wire connecting cap 180 is inserted and fixed from the upper portion of the connection clip 158 ', the electric resistance of the plug connection terminal 150 increases in use when heat is generated. If the temperature rises above a certain temperature, the current can be dropped to lower the heat.

In addition, when the heat resistance starts when the electric resistance of the plug connection terminal 150 increases while being used, if the temperature rises above a certain temperature due to heat generation, the plug connection terminal 150 according to the increase in the electrical resistance can be lowered by lowering the amount of current. This prevents overheating and prevents accidents such as burns caused by the user due to overheating, and also prevents damage to parts due to overheating.

Although specific embodiments of the present invention have been described in detail above, the present invention is not limited thereto, and the present invention can be variously modified by those skilled in the art to which the present invention pertains. Is included in the scope of the present invention.

Claims

It is provided in a portable terminal such as a mobile phone, the socket mold 230 having a socket connecting portion 210 is fixed to one side of the socket connection terminal 220, and the data in the micro USB connector socket 200 including the socket housing 250 In the micro USB connector plug 100 is connected for input and output or charging of,

A plug mold 101 to which the socket connecting portion 210 and the front portion of the micro USB connector socket 200 are connected and connected; A metal shell 130 coupled to surround the plug mold 101; The plug connection ends 141 and 151 contacting the socket connection terminals 220 protrude upwardly at the front end, so that the plug connection ends 141 and 151 are exposed at the front end of the plug mold 101. A plurality of plug connection terminals 140 and 150 in the width direction of the 101; And a plurality of wires connected from the rear side, the wires being coupled from an upper portion of the rear side of the plug mold 101 to cover rear ends of the plug connection terminals 140 and 150 disposed on an upper surface of the rear side of the plug mold 101. Including a connection cap 180,

The plug connection terminal 150 of any one of the plug connection terminals 140 and 150 is divided into a front connection terminal 153 and a rear connection terminal 157 having a plug connection end 151 at a front end thereof. The micro-USB connector plug, characterized in that the front connection terminal 155 and the rear connection terminal 159 is selectively connected by (170).
The method of claim 1,

The plug mold 101 has a plug connecting portion 115 ′ connected to the socket connecting portion 210 to protrude toward the mold body 111 ′, and the metal shell 130 is connected to the plug connecting portion 115 ′. While wrapping around,

The front connection terminal 153 is provided with an upper contact hole 154 at a rear end thereof, and the rear connection terminal 157 is a lower contact hole facing the upper contact hole 154 at a front end to have a predetermined distance. 158 is provided, and the PTC device 170 is selectively slidably coupled between the upper contact hole 154 and the lower contact hole 158 to connect the front connection terminal 153 and the rear connection terminal 157. Micro USB connector plug, characterized by an optional connection.
The method of claim 2,

The upper contact hole (154) is a micro-USB connector plug, characterized in that the upper surface of the PTC element 170 is formed to be bent round inward downward in a pair with a predetermined interval so that the upper surface of the PTC device 170 can be connected to be connected.
The method of claim 2,

The lower contact hole 158 is a micro UsB connector plug, characterized in that the contact protrusion 159 is formed to protrude in a circular shape in the center of the upper surface so that the lower surface of the PTC device 170 can be connected in a single contact structure.
The method of claim 2,

The lower contact hole 158 has a predetermined distance on the upper surface so that the lower surface of the PTC device 170 can be connected in a three-contact structure, the contact protrusion 159 is formed to protrude in a circular shape, the contact protrusion 159 is Zig-zag type micro Usb connector plug, characterized in that formed in three protrusions at regular intervals.
The method of claim 1,

The plug mold 101 includes a plug mold cap 120 in which a plug connecting portion 121 connected to the socket connecting portion 210 protrudes forward, and a plug fixed and fixed from the rear of the plug mold cap 120. Consists of a mold housing 110, the metal shell 130 is coupled while wrapping the plug connecting portion 121 of the plug mold cap 120,

The wire connection cap 180 is assembled and fixed to the PTC device 170 on one side of the bottom surface when the PTC device 170 is coupled to the front connection terminal 153 and the rear connection terminal (153) 157) selectively connecting and connecting the micro USB connector plug.
The method of claim 6,

The front connection terminal 153 is provided with a "U" shaped front connection clip 154 'at the rear end, and the rear connection terminal 157 has a "U" shaped rear connection clip 158 at the front end. ') Is provided,

When the PTC device 170 is coupled to the wire connecting cap 180, the front and rear lower sides of the front connection clip 154 'and the rear connection clip 158' are respectively inserted into and fixed to the front connection terminal ( 153 and the rear connection terminal 157 is selectively connected to the micro USB connector plug.
The method of claim 7, wherein

The front connection clip 154 'is provided in a "U" shape, but is bent to have an inequality curved inwardly on one side, and the rear connection clip 158' is also provided in a "U" shape, but one side The bending is formed to have an inequality curved inwardly at the upper side, the PTC element 170 is characterized in that the front and rear of the lower side is elastically pressurized by the front connection clip 154 'and the rear connection clip 158'. Micro USB connector plug.
The method of claim 6,

The PTC device 170 is assembled and fixed to the bottom of one side of the wire connection cap 180,

It is inserted into the assembly groove 181 recessed upwardly formed from one side of the bottom surface of the wire connecting cap 180, while the fixing hook 182 is further provided on one side of the assembly groove 181 by the fixing hook 182 Micro USB connector plug, characterized in that the lower edge of one side of the PTC device 170 is locked.
The method of claim 9,

A fixing groove 183 is formed at one side of the assembly groove 181 formed at one side of the wire connection cap 180,

The PTC device 170 is a micro-USB connector plug, characterized in that one side is fixed to a certain area of the bottom by a fixing piece 190 is inserted into the fixing groove (183).
The method of claim 10,

The fixing piece 190 can be fixed to support a certain area of the bottom surface of the PTC device 170,

A fixing frame 191 provided on a plate and selectively inserted and fixed in the fixing groove 183,

Extension frame 192 extending a predetermined length orthogonal to the fixed frame 191 and

A support frame 193 extending from the end of the extension frame 192 in a horizontal direction with respect to a predetermined length corresponding to the bottom width of the PTC device 170 to closely support the bottom surface of the PTC device 170. Micro USB connector plug, characterized in that comprises a.
The method of claim 6,

The plug mold housing 110 has a separating wall 111 formed at a central portion thereof, and an insertion protrusion 113 protrudes toward the front side at the front center of the separating wall 111, and is formed at a rear upper surface of the insertion protrusion 113. The locking protrusion 114 is formed to protrude, and the engaging protrusion 115 is protruded on both front sides of the separation wall 111, but the protruding jaw 116 is formed such that the engaging protrusion 115 has an end on the outside thereof. ,

The plug mold cap 120 has a locking groove 124 is formed on the rear upper side of the locking projection 114 is fixed, the coupling groove 125 is coupled to the coupling protrusion 115 is formed on both sides of the rear. The coupling groove 125 is formed with a guide groove 126 in which the protrusion jaw 116 is guided and inserted into an outer side surface thereof, and communicates with an upper side of the plug connection portion 121 from both rear sides of the coupling groove 125. 123) is formed, the micro USB connector plug.
The method of claim 12,

The coupling pin 160 is inserted and fixed through the pin fixing groove 123 of the plug mold cap 120, and the coupling pin 160 protrudes and forms a coupling protrusion 161 at a tip thereof. ) Is a micro UsB connector plug, characterized in that protrudes upward in the front end of the plug connection portion (121).
The method of claim 13,

The plug mold cap 120 has a predetermined interval in the center of the rear end surface has a predetermined protrusion 122 is formed, the metal shell 130 wraps around the plug connection portion 121 of the plug mold cap 120 The upper end of the rear end portion corresponds to the fixing protrusion 122 and a fixing hole 132 through which the fixing protrusion 122 is fixedly coupled is formed through a pair, while the plug connection portion 121 is formed on both sides of the upper surface of the front end portion. The micro-USB connector plug, characterized in that the through-hole is formed through the coupling hole 136 is fixed to the coupling protrusion 161 is protruded upward.