CN200987002Y

CN200987002Y - Metal casing structure for Mini USB plug connector

Info

Publication number: CN200987002Y
Application number: CN 200620046508
Authority: CN
Inventors: 王聪海
Original assignee: Jinjia Electronic Science And Technology (suzhou) Co Ltd
Current assignee: Jinjia Electronic Science And Technology (suzhou) Co Ltd
Priority date: 2006-09-29
Filing date: 2006-09-29
Publication date: 2007-12-05
Anticipated expiration: 2016-09-29

Abstract

A mental casing structure of MiniUSB plug connector contains an insulated base, a terminal group and a mental casing. The insulated base has an insert element and an intermediate stopper which is at the back of the insert element. The terminal group and the insulated base form an integral body. The mental casing is coated outside of the insulated base and the terminal. The mental casing has a casing base. A convex insert joint is formed on the front part of the casing base. A traverse grooving is opened on the end of the insert joint. The end face of the grooving is vertical to the base plate of the casing base. The vertical end system and the front end of the intermediate stopper of the insulated base connect with each other closely, which makes no space exist between the insulated base and the mental casing. The structure can make the orientation of the insulated casing precise and avoid shaking and breaking.

Description

The metal shell structure of Mini USB plug connector

[technical field]

The utility model is relevant for a kind of metal shell structure of Mini USB plug connector, especially refer to a kind of pin connector that is applied on the Mini USB transmission line, can make the insulating base physical efficiency locate accurately and be difficult for rocking be fixed on connector construction in the metal shell.

[background technology]

As shown in Figure 1, be the in-built schematic diagram of a kind of known connector, this connector is the pattern of Mini USB, and it comprises that a connector joint 1a and is electrically connected at the transmission line 2a of this joint 1a rear end; This joint 1a has an insulating base frame 10a, be provided with a plurality of terminal 11a in insulating base frame 10a, these terminals 11a end is extended by insulating base frame 10a rear end, and further be welded in copper foil circuit 120a place on the circuit board 12a, link by the copper foil circuit 120a of this circuit board 12a and the line stamen 20a welding of transmission line 2a.Then, outside this insulating base frame 10a, coat layer of metal housing 13a again, and outside circuit board 12a, coat an insulation crust 14a who is connected between metal shell 13a and the transmission line 2a again, use formation a connector.

In the above-mentioned connector, the section system of this metal shell 13a front side is a convex shape, inwardly contracted in the two side of its front side, and the lateral separation that makes metal shell 13a front side is less than rear side, and be formed with an arcuation bent angle 131a in middle junction, so in the time of in insulating base frame 10a is coated on metal shell 13a, insulating base frame 10a rear end one is replaced when this arcuation bent angle 131a, insulating base frame 10a promptly can't continue to insert forward again and locate.

But, be formed with the space because of meeting between this insulating base frame 10a and the arcuation bent angle 131a, and cause insulating base frame 10a can't be positioned in the metal shell 13a accurately, like this when Mini USB plug connector when long-term plug is used, promptly can cause come off separating between insulating base frame 10a and the metal shell 13a.

Because the above-mentioned known problem that produces, the application's creator satisfies being engaged in the sector experience for many years, and in line with excelsior spirit, the active research improvement has the generation of the utility model " the metal shell structure of Mini USB plug connector " then.

[utility model content]

The purpose of this utility model is, a kind of metal shell structure of Mini USB plug connector is provided, and has overcome to come off separating between insulating base frame that traditional connector plugs use for a long time and caused and the metal shell, has guaranteed the reliability of using.

A purpose of the present utility model is to provide a kind of metal shell structure of Mini USB plug connector, comprise an insulating base frame, one terminal group and a metal shell, this insulating base frame has the middle block that a Plug Division and is formed at the rear, Plug Division, and terminal group system and insulating base frame one ejection formation, this metal shell is coated on insulating base frame and terminal group outside in addition, wherein metal shell has a shell block, be formed with a connection-peg that is " protruding " shape in the shell block front side, the end of this connection-peg offers a horizontal grooving, the end face of this grooving is perpendicular to the shell block base plate, and the middle block front end face of this end face system and insulating base frame pastes butt mutually and touches.

Thus, when being coated on insulating base frame in the metal shell, middle block on the insulating base frame be able to paste fully to be replaced on the vertical smooth section of this convex character shape Plug Division tail end, no any space exists between making insulating base frame and metal shell contacting, and is difficult for rocking the seceder in the metal shell in order to do the insulation physical efficiency is positioned at accurately.

[description of drawings]

Fig. 1 is the in-built schematic diagram of known connector.

Fig. 2 is the three-dimensional exploded view of the utility model Mini USB plug connector.

Fig. 3 is the three-dimensional combination figure of Fig. 2.

Fig. 4 is the cross sectional plan view of Fig. 3.

Fig. 5 is the cross sectional side view of Fig. 3.

Fig. 6 is that the utility model Mini USB plug connector penetrates the Overmolded stereo appearance figure that insulation crust is arranged.

[embodiment]

Relevant detailed description of the present utility model and technology contents cooperate graphic being described as follows, however appended graphic only provide with reference to and explanation usefulness, be not to be used for to the utility model limitr in addition.

The utility model is a kind of " the metal shell structure of Mini USB plug connector ", please refer to shown in Figure 2ly, and this Mini USB plug connector is made up of insulating base frame 1, terminal group 2, metal shell 3 and transmission line 4.Wherein, insulating base frame 1 is and terminal group 2 one injection moldings, and when injection molding, be formed with a Plug Division 11 in the front side of insulating base frame 1, the contact jaw of terminal group 2 front ends promptly is arranged in 11 places, Plug Division, insulating base frame 1 rear side then is formed with a backstop 5, the rear end that makes terminal group 2 extends back and welds mutually with transmission line 4 from backstop 5 and establishes, and protrudes out a middle block 13 that is provided with at interval with backstop 5 between Plug Division 11 and backstop 5.

Be to be formed with a disposal area 52 between the middle block 13 of this insulating base frame 1 and the backstop 5, these 52 places, disposal area have a short slot 53, one terminal of terminal group 2 is exposed at outward in the disposal area 52, place short slot 53 places and weld mutually for electronic building brick 6 and establish with terminal, this electronic building brick 6 is to can be a resistor assembly, and be formed with a barricade 531 at least one side of

short slot

53,53 at least three sides of short slot are enclosed by backstop 5, middle block 13 and barricade 531 respectively, can be positioned on the short slot 53 unlikely unrest when establishing and move welding mutually with terminal group 2 to make electronic building brick 6.

Please continue with reference to shown in Figure 2, this terminal group 2 is to be arranged by a plurality of terminals to form, it roughly can comprise a power supply terminal 21, two signal terminals 22 (just, negative pole), one reserves a terminal 23 and an earth terminal 24, and each

terminal

21,22,23,24 all have the contact jaw 211 on the Plug Division 11 that is arranged at insulating base frame 1,221,231,241, and the weldering tail end that is extended by insulating base frame 1 rear side (only manifests the weldering tail end 212 of power supply terminal 21 and earth terminal 24 among the figure, 242), wherein power supply terminal 21 and earth terminal 24 more form the weldering tail end 212 of a broad, 242, weld mutually and link in order to line stamen 41 with a transmission line 4.

This metal shell 3 is made of a shell block 31 and a cap 32, cap 32 is to cover at the rear side of shell block 31 to sentence the weld that covers 2 of transmission line 4 and terminal group, and outside this metal shell 3, be socketed with certain position cover 7, metal shell 3 can firmly be enveloped on insulating base frame 1 and the backstop 5 closely, and when metal shell 3 is coated on the insulating base frame 1, just makes the disposal area 53 of 13 of the backstops 5 of insulating base frame 1, middle block be arranged with a power supply sub-component 6 with metal shell 3 inside and install the confined space that is connected.

Please continue with reference to shown in Figure 2, the section of the front side of this shell block 31 slightly is the connection-peg 311 of one " protruding " shape, the section of rear side then is a bite word shape, this shell block 31 offers a horizontal grooving 312 and extends to the dual-side place in the top side of its connection-peg 311 tail ends, make grooving 312 front ends of shell block 31 be formed with an end face 3111 perpendicular to shell block 31 base plates.Other is provided with a broken tabs 313 in shell block 31 bottom surfaces system, and this broken tabs 313 rear ends system is connected with shell block 31, and other three sides then are not connected with shell block 31, and the front end that does not connect is the perk that slightly makes progress.

This cap 32 is to include a main cover plate 321, front end in main cover plate 321 extends a buckle 322, this buckle 322 is that intercalation is within shell block 31, and be extended with a retaining ring 323 that is arcuation in the rear end of main cover plate 321 system, clamp transmission line 4 with fastening, in addition, each extension downward vertically of dual-side system in main cover plate 321 is provided with an enchasing plate 324, on enchasing plate 324, also dash and be provided with a catch 325, then be provided with corresponding button hole 314, connect with mutual fixing at the rear side place of shell block 31.

Please refer to Fig. 3,4, shown in 5, during assembling, behind insulating base frame 1 and terminal group 2 ejection formations, promptly on the short slot 53 of disposal area 52, be provided with electronic building brick 6 with the terminal weldering, and the line stamen 41 that makes transmission line 4 also with the weldering tail end 212 of power supply terminal 21 with earth terminal 24,242 weld mutually and connect, secondly, the shell block 31 of metal shell 3 together is coated on the insulating base frame 1 with cap 32, during coating, the buckle 322 of this cap 32 is that intercalation is within shell block 31, and the catch 325 on the enchasing plate 324 is buckled in the button hole 314 of shell block 31, mat makes firm being positioned on the shell block 31 of cap 32 energy, the last retaining ring 323 that will be arcuation again fastens and clamps transmission line 4, electronic building brick 6 is coated to be hidden in the metal shell 3, succeed and again a positioning sleeve 7 to be linked on the metal shell 3, make metal shell 3 closely firm envelope insulating base frame 1.

Please refer to shown in Figure 6, after above-mentioned assembling, at last again by one plastic overmold forming operation, outside this metal shell 3 and transmission line 4, to be formed with an insulation crust 8, be with, by above-mentioned contexture, can finish Mini USB plug connector of the present utility model.

Referring again to shown in Figure 4, in above-mentioned insulating base frame 1 and metal shell 3 assembling process, owing to have a horizontal grooving 312 on the shell block 31 of metal shell 3, and connection-peg 311 tail ends that make shell block 31 form an end face 3111 perpendicular to shell block 31 base plates, this end face 3111 is to attach mutually with middle block 13 front end faces of insulating base frame 1 to contact, no any space exists between making insulating base frame 1 and metal shell 3 contacting, and makes insulating base frame 1 be positioned at accurately like this and is difficult for rocking disengaging in the metal shell 3.

In addition, the back place of shell block 31 is provided with the broken tabs 313 that a front end slightly is upturned, also can keeping out by this broken tabs 313, make insulating base frame 1 draw back and be separated from metal shell 3, front and back two directions of insulating base frame 1 all are blocked, and make insulating base frame 1 can't be separated from metal shell 3.

In sum, " Mini USB plug connector construction " of the present utility model can pass through above-mentioned disclosed structure really, reaches described effect.And do not see the also unexposed use of publication before the utility model application, really met the important documents such as novelty, progress of novel patent.

But above-mentioned graphic and explanation of taking off only is embodiment of the present utility model, and is non-for limiting embodiment of the present utility model; Generally be familiar with the personage of this skill, it complies with feature category of the present utility model, and other equivalence of being done changes or modifies, and all should be encompassed in the claim of following this case.

Claims

1, a kind of metal shell structure of Mini USB plug connector is characterized in that, comprising:

One insulating base frame has the middle block that a Plug Division and is formed at the rear, Plug Division;

One terminal group is with insulating base frame one ejection formation; And

One metal shell is coated on insulating base frame and terminal group outside;

This metal shell has a shell block, be formed with a connection-peg that is " protruding " shape in the shell block front side, the end of this connection-peg offers a horizontal grooving, and the end face of this grooving is perpendicular to the shell block base plate, and the middle block front end face of this end face system and insulating base frame pastes butt mutually and touches.

2, the metal shell structure of Mini USB plug connector according to claim 1 is characterized in that,

The base plate system of this shell block is provided with a broken tabs, and this broken tabs rear end is connected with base plate, and other three sides then are not connected with base plate, and the front end that does not the connect system of broken tabs is upturned.

3, the metal shell structure of Mini USB plug connector according to claim 2 is characterized in that,

This metal shell more comprises a cap that connects the shell block rear, and it comprises a main cover plate, extends a buckle in the front end of main cover plate, this buckle be intercalation in shell block, and be extended with the retaining ring of an arcuation in the rear end of main cover plate system.

4, the metal shell structure of Mini USB plug connector according to claim 3 is characterized in that,

Each extension downward vertically of the dual-side of this main cover plate is provided with enchasing plate, is provided with a catch in the enchasing plate upper punch, and the place then is provided with corresponding button hole at the shell block rear side, to be connected with mutual fixing.