CN204441622U

CN204441622U - The ground structure of USB connector

Info

Publication number: CN204441622U
Application number: CN201520102772.6U
Authority: CN
Inventors: 加藤宣和; 桥本公明
Original assignee: Aces Electronics Co Ltd
Current assignee: Aces Electronics Co Ltd
Priority date: 2015-02-12
Filing date: 2015-02-12
Publication date: 2015-07-01
Anticipated expiration: 2025-02-12

Abstract

The utility model provides a kind of ground structure of USB connector, wherein on insulating body for being combined with first end subgroup and second terminal group of electrical module, and be combined with in insulating body inside the metal ground plate be positioned between first end subgroup and the second terminal group, and first end subgroup and the second terminal group side place are respectively equipped with the first contact site and the second contact site that expose to upper and lower two side places, docking section, insulating body front, again in first connecting portion at first end subgroup and the second terminal group opposite side place, second connecting portion is connected to the first wire group and the second wire group of transmission cable, just the shield that the first wire group and the second wire group periphery place are located can be electrically connected at and metal ground plate form common ground and the function with ground connection, and best shield effectiveness is provided, and can simplify because not needing configuration printed circuit board (PCB) to carry out connecting the effectiveness that fabrication schedule reaches saving assembling man-hour and cost, also effectively reduced volume entirety more slimming can be made.

Description

The ground structure of USB connector

Technical field

The utility model provides a kind of ground structure of USB connector, espespecially insulating body between first end subgroup and the second terminal group for being combined with metal ground plate, and overlap by metal ground plate shield that the first wire group and the second wire group periphery locate and form common ground and there is the function of ground connection, to provide best shield effectiveness.

Background technology

Press, electronics technology is fast-developing now, the kenel of computer is made to be develop into small volume, notebook computer easy to carry by desktop computer, and in ubiquity society in the middle of each corner, when user is for carrying out data signal transmission or being connected with other peripheral equipment, namely so-called peripheral equipment interface is needed, and general peripheral equipment interface on the market the most generally and widely popularly to use, still using universal serial bus (USB) as main flow, and utilize USB to support the function plug and play of hot plug, and more easy on using.

Moreover, USB3.0 has become the most universal main flow connecting interface now, and be fully used on various external connected electronic product, as circumscribed Hard Disk Drive, solid hard disc, DVD player etc., and in the face of the challenge of other high speed interface, just USB3.1Type-C specification is released, main slightly larger than existing USB2.0Mirco-B dimensionally, support higher power source charges and power supply capacity, and can up to 10Gbps in transmission speed, support positive and negative is used to insert, user will no longer need to differentiate positive and negative, easier interface to be inserted, more can expand is applicable to as panel computer, the running gear of the light and thin types such as Smartphone, therefore be especially subject to market to expect.

And the design of USB Type-C connector and USB connector in the past have a great difference, have employed the pattern of arranging up and down and there is terminal simultaneously, and in the processing of line-end connector (Plug) cable, printed circuit board (PCB) connection must be carried out on line-end connector tail end, the plural heart yearn of cable just welds on a printed circuit, along with the downsizing of USBType-C connector and transmission speed significantly promote, the increased number of its terminal and densely distributed, as easy as rolling off a log because of between terminals of adjacent too close to and cause high-frequency signal to transmit time signal disturbing (as Electromagnetic Interference, cross-talk etc.), future also can grow up at faster speed, make the signal interference problem of connector itself will be more serious, and the Electromagnetic Interference that generally can affect connector can be divided into following two kinds haply, one is main via the power circuit on circuit board, the conducted interference that the conductor propagation such as signal line produce to connector, it is two for being transmitted to the radiation interference of to radiate around connector and causing in space with electromagnetic wave form, so the practice general is now provided with in insulating body inside the metal ground plate be positioned at up and down between row's terminal to form shielding and isolation, and the metallic contact of metal ground plate by printed circuit board (PCB) is overlapped mutually with the grounded parts arranging terminal up and down, to reach the function that the electromagnetism produced when ground connection reduces high-frequency signal transmission involves cross-talk.

But, the terminal of arranging up and down of this USB Type-C connector utilizes the mode of elasticity conflict or welding to be connected with the metallic contact at printed circuit board (PCB) front place, and welded to the metallic contact at rear and the plural heart yearn of cable by connection, the grounded parts making to arrange up and down terminal forms the loop of a common ground by the ground connection heart yearn of printed circuit board (PCB) and cable, although the metallic contact wiring connected mode of this kind of printed circuit board (PCB) is simple and be easy to make, but because of arrange terminal and cable up and down connection on still need to be undertaken assembling and welding procedure by printed circuit board (PCB), not only cause overall fabrication schedule comparatively complicated and suitable expend man-hour and cost, and the configuration of this printed circuit board (PCB) also can take certain volume, cannot effectively reduce to cause connector overall dimensions, be unfavorable for the electronic product being applied to light and thin type widely, sincere genus a fly in the ointment, be need to be engaged in this journey dealer desire most ardently the key point that research improves.

Utility model content

Therefore, novel practical new design people is because above-mentioned existing problem and disappearance, be collect related data via assessment in many ways and consideration, and utilize the research and development experience for many years engaging in the industry constantly to study and amendment, begin to design the novel birth of the ground structure of this kind of USB connector.

For achieving the above object, the technical solution adopted in the utility model is:

A ground structure for USB connector, is characterized in that: include insulating body, electrical module, metal ground plate and transmission cable, wherein:

This insulating body has pedestal, and is provided with docking section at pedestal front place, and insulating body is combined with an electrical module;

First end subgroup included by this electrical module and the second terminal group side place are respectively equipped with and pass and expose to the first contact site and second contact site at upper and lower two side places, docking section, and are respectively equipped with the first connecting portion and the second connecting portion in first end subgroup and the second terminal group relative to the opposite side place of the first contact site, the second contact site;

This metal ground plate is incorporated into insulating body inside and is formed between the first end subgroup and the second terminal group of electrical module and shields and isolation;

This transmission cable include be connected to first end subgroup and the second terminal group respectively the first connecting portion second connecting portion on form the first wire group and the second wire group of electric connection, and be positioned with in the first wire group and the second wire group periphery place the shield being electrically connected at and metal ground plate being formed common ground.

The ground structure of described USB connector, wherein: this insulating body outside covers and is positioned with a shield shell, and have can stretch into for docking section the grafting space forming vacant state in the inner in inside of shield casings, and upper and lower two side places, shield shell rear are provided with relative inner bending extension towards grafting direction in space and are overlapped in plural grounding elastic part shield being formed ground connection respectively.

The ground structure of described USB connector, wherein: the first end stroma of this electrical module and the second terminal base outside cover the upper cover plate made by metal material respectively and be incorporated into the lower cover located below upper cover plate, and be respectively equipped with on upper cover plate and lower cover and contact at plural number shield shell being formed ground connection and support shell fragment.

The ground structure of described USB connector, wherein: this shield shell is outside further combined with having the first shell of align member and being incorporated into the second housing located below the first shell, and on the first shell and second housing, be respectively equipped with the plural contact flat spring contacting at and shield shell is formed ground connection.

The ground structure of described USB connector, wherein: locate outwards to transfer the smooth shape Extendible flake being extended with and mutually supporting and paste on front side of the first shell of this align member and second housing, and be respectively equipped with relative perforation on two Extendible flakes.

The ground structure of described USB connector, wherein: the pedestal rear place of this insulating body is formed with an accommodation space, and upper and lower two side places are formed with the padded portion exposing to accommodation space place at metal ground plate rear, and padded portion is formed with the contact-making surface that can form ground connection for shield overlap joint on the surface.

The ground structure of described USB connector, wherein: the side place of padded portion two of this metal ground plate extends back and is piercing in the stator at electrical module first end stroma and the second terminal base periphery place, and utilize that the mode of inlaying injection is one-body molded insulating body in first end stroma, the second terminal base and stator outside, and be formed with short slot respectively between two stators and padded portion.

The ground structure of described USB connector, wherein: the first end stroma of this electrical module with the second terminal base rear opposite external side surface is formed respectively can supply the first wire group, the second wire group locates and plural number first location notch be connected with the first connecting portion of first end subgroup, the second connecting portion of the second terminal group and the second location notch.

The ground structure of described USB connector, wherein: this transmission cable includes the first wire group and the second wire group of arranging up and down and respectively having 12 wires, and in the first wire group first, 4th, 9th, 12 wire is sequentially the first earth lead, first power lead, second source wire and the second earth lead, all the other wires are all signal transmission wire, and in the relative first wire group of the second wire group first, 4th, 9th, 12 wire is sequentially the 3rd earth lead, 3rd power lead, 4th power lead and the 4th earth lead, all the other wires are all signal transmission wire, and the upper and lower two side places of shield have and can supply the first power lead, second source wire, 3rd power lead and the 4th power lead bridge formed with complex signal transfer wire thereon shield with isolation plural metallic plate.

The ground structure of described USB connector, wherein: this shield has and is positioned the first wire group and the second wire group signal transmission wire periphery place respectively and forms four metallic plates that stacked on top of one another arranges.

Compared with prior art, the beneficial effect that the utility model has is:

The utility model is combined with first end subgroup and second terminal group of electrical module on this insulating body, and be combined with in insulating body inside the metal ground plate being positioned at and being formed between first end subgroup and the second terminal group and shield with isolation, and first end subgroup and the second terminal group side place are respectively equipped with the first contact site and the second contact site that expose to upper and lower two side places, docking section, insulating body front, again in first connecting portion at first end subgroup and the second terminal group opposite side place, second connecting portion is connected to the first wire group and the second wire group of transmission cable, just the shield that the first wire group and the second wire group periphery place are located can be electrically connected at and metal ground plate form common ground and the function with ground connection, and best shield effectiveness is provided, and can simplify because not needing configuration printed circuit board (PCB) to carry out connecting the effectiveness that fabrication schedule reaches saving assembling man-hour and cost, also effectively reduced volume entirety more slimming can be made, more be widely used in the electronic product of light and thin type.

Transmission cable of the present utility model includes the first wire group and the second wire group of arranging up and down and respectively having 12 wires, and first of the first wire group, 4th, 9th, 12 wire is sequentially the first earth lead, first power lead, second source wire and the second earth lead, and in the relative first wire group of the second wire group first, 4th, 9th, 12 wire is sequentially the 3rd earth lead, 3rd power lead, 4th power lead and the 4th earth lead, just four metallic plates of shield can be relied on to be positioned the first wire group and the second wire group periphery place respectively form stacked on top of one another and arrange, make the first power lead, second source wire, 3rd power lead and the 4th power lead are cross-placed on the metallic plate at the upper and lower two side places of shield and complex signal transfer wire respectively and are formed and shield and isolation, with effectively prevent because of distance close to institute cause methd of power supply random signal to disturb disappearance generation.

Insulating body outside of the present utility model covers and is positioned with shield shell, and there is in inside of shield casings the grafting space can stretched into for docking section, and upper and lower two side places, shield shell rear are provided with the plural grounding elastic part that relative inner bending extends, just grounding elastic part can be overlapped in respectively on the shield at the first wire group and the second wire group periphery place, shield shell is made to form the loop of a common ground by shield and metal ground plate, when first end subgroup and the second terminal group transmitting high-frequency signal of electrical module, its mutual formed electromagnetism involves cross-talk can by metal ground plate induced absorption, and carry out ground connection release by shield directed transmission to shield shell, and then the quality making overall signal transmit is more stable and reliable.

Shield shell combined outside of the present utility model has the first shell and the second housing of align member, and the contact flat spring at the first shell and second housing relative inner place is contacted on shield shell respectively, the retaining element worn further in perforation is utilized to be incorporated into loop circuit board or casing being formed a common ground Extendible flake again, just shield shell can be relied on to coordinate align member the electromagnetism produced around USB connector to be involved noise interference be directed on the earth terminal of circuit board or casing and discharge, to improve the effect of ground connection and shielding.

Accompanying drawing explanation

Fig. 1 is stereo appearance figure of the present utility model;

Fig. 2 is three-dimensional exploded view of the present utility model;

Fig. 3 is the three-dimensional exploded view at another visual angle of the utility model;

Fig. 4 is side cutaway view of the present utility model;

Fig. 5 is the partial enlarged drawing of the utility model Fig. 4;

Fig. 6 is rear perspective profile of the present utility model.

Description of reference numerals: 1-insulating body; 11-pedestal; 110-accommodation space; 111-buckle groove; 12-docking section; 120-located space; 121-hyoplastron; 2-electrical module; 21-first end subgroup; 211-first contact site; 212-first connecting portion; 22-second terminal group; 221-second contact site; 222-second connecting portion; 23-first end stroma; 231-first location notch; 24-second terminal base; 241-second location notch; 25-upper cover plate; 251-button hole; 252-supports shell fragment; 26-lower cover; 261-buckle; 262-supports shell fragment; 3-metal ground plate; 30-metallic plate; The padded portion of 31-; 311-contact-making surface; 32-stator; 321-short slot; 4-transmission cable; 41-first wire group; 411-first earth lead; 412-first power lead; 413-second source wire; 414-second earth lead; 42-second wire group; 421-the 3rd earth lead; 422-the 3rd power lead; 423-the 4th power lead; 424-the 4th earth lead; 43-shield; 431-metallic plate; 5-shield shell; 50-grafting space; 51-grounding elastic part; 511-supporting surface; 6-align member; 61-first shell; The convex button of 611-; 612-contact flat spring; 613-Extendible flake; 614-bores a hole; 62-second housing; 621-catching groove; 622-contact flat spring; 623-Extendible flake; 624-bores a hole.

Embodiment

For reaching above-mentioned purpose and effect, the technological means that the utility model adopts and structure thereof, just preferred embodiment of the present utility model of hereby drawing illustrates that its structure is as follows with function in detail, understands completely in order to do profit.

Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, be respectively stereo appearance figure of the present utility model, three-dimensional exploded view, the three-dimensional exploded view at another visual angle, side cutaway view, the partial enlarged drawing of Fig. 4 and rear perspective profile, find out by knowing in figure, the utility model is for including insulating body 1, electrical module 2, metal ground plate 3, transmission cable 4, shield shell 5 and align member 6, therefore with regard to the main member of this case and feature describe in detail as after, wherein:

This insulating body 1 is for having a pedestal 11, and extend outwardly at pedestal 11 front place and be provided with the hyoplastron 121 of docking section 12 hanging shape, and hyoplastron 121 inside is formed with located space 120, and pedestal 11 rear place is formed with lateral direction penetrating to the accommodation space 110 in located space 120, and be all formed with the buckle groove 111 of terrace shape at pedestal 11 adjacent to side place, docking section about 12 two.

This electrical module 2 is for including the first end subgroup 21 and the second terminal group 22 of arranging up and down, and utilizing plastics to penetrate to inlay in first end subgroup 21 and the second terminal group 22 respectively, the mode of (Insert Molding) is one-body molded has first end stroma 23 and be incorporated into the second terminal base 24 located below first end stroma 23, or can at first end stroma 23, second terminal base 24 utilize the mode of assembling be positioned with first end subgroup 21 and the second terminal group 22 respectively, and this first end stroma 23 and the second terminal base 24 rear opposite external side surface are formed with respectively plural number first location notch 231 and the second location notch 241 that lateral separation arranges, and first end subgroup 21 and the second terminal group 22 side place pass for being respectively equipped with and exposing to first end stroma 23, first contact site 211 and second contact site 221 at the second terminal base about 24 two side place, and to be respectively equipped with relative to the opposite side place of the first contact site 211 and the second contact site 221 in first end subgroup 21 and the second terminal group 22 and to be positioned at the first location notch 231, the first connecting portion 212 and the second connecting portion 222 in second location notch 241, separately, first end stroma 23 and the second terminal base 24 outside are for covering relative upper cover plate 25 respectively and being incorporated into the lower cover 26 located below upper cover plate 25, its upper cover plate 25 and lower cover 26 2 side place are provided with and fasten the plural button hole 251 and buckle 261 of locating in corresponding, and on upper cover plate 25 with lower cover 26, are respectively equipped with plural number support shell fragment 252,262.

Moreover, first end subgroup 21 and the second terminal group 22 be have respectively arrange up and down relative twelve earthly branches arranges terminal and twelve earthly branches under arrange terminal, on it, first terminal arranged in terminal is sequentially the first earth terminal (GND) to twelve earthly branches terminal definition of pin position, first high speed positive differential is to signal terminal (TX1+), first bears differential pair signal terminal (TX1-) at a high speed, first power supply terminal (VBus), first spare terminal (CC1), second high speed positive differential is to signal terminal (D+), second bears differential pair signal terminal (D-) at a high speed, second spare terminal (SBU1), second source terminal (VBus), the negative differential pair signal terminal (RX2-) of third high speed, third high speed positive differential, to signal terminal (RX2+) and the second earth terminal (GND), is arranged terminal and is then sequentially the 3rd earth terminal (GND) corresponding to first terminal in upper row's terminal to twelve earthly branches terminal definition of pin position under twelve earthly branches, 4th high speed positive differential is to signal terminal (RX1+), 4th bears differential pair signal terminal (RX1-) at a high speed, 3rd power supply terminal (VBus), 3rd spare terminal (SBU2), 5th bears differential pair signal terminal (D-) at a high speed, 5th high speed positive differential is to signal terminal (D+), 4th spare terminal (CC2), 4th power supply terminal (VBus), 6th bears differential pair signal terminal (TX2-) at a high speed, 6th high speed positive differential, to signal terminal (TX2+) and the 4th earth terminal (GND), meets USB Type-C connector specification to form.

This metal ground plate 3 is better to be embodied as and to have that two metallic plates 30 are mutually stacked to be formed, but when practical application, metal ground plate 3 also can be the metallic plate 30 of single or multiple lift, and upper and lower two side places are formed with the padded portion 31 of relative outer lug along Width at metal ground plate 3 rear, and padded portion 31 is formed with the contact-making surface 311 of smooth shape on the surface, and the side place of padded portion 31 2 of metal ground plate 3 is for having extended back stator 32, and a short slot 321 is formed respectively between two stators 32 and padded portion 31, only the formation of this part metal ground plate 3 and structural design mode a lot, and enforcement can be changed according to actual application, and the formation in this thin portion founds main points because of non-this case, hereby do not remake and repeat.

This transmission cable 4 is for including first wire group 41 and the second wire group 42 of arranging up and down and respectively having 12 wires, and be positioned with the shield 43 of tool plural number metallic plate 431 in the first wire group 41 and the second wire group 42 periphery place, and in this first wire group 41 first, 4th, 9th, 12 wire is sequentially the first earth lead 411, first power lead 412, second source wire 413 and the second earth lead 414, all the other wires are all signal transmission wire, and in the relative first wire group 41 of the second wire group 42 first, 4th, 9th, 12 wire is then sequentially the 3rd earth lead 421, 3rd power lead 422, 4th power lead 423 and the 4th earth lead 424, all the other wires are all signal transmission wire, and the complex signal transfer wire periphery place making four of shield 43 metallic plates 431 be positioned the first wire group 41 and the second wire group 42 respectively forms stacked on top of one another arranges, and the first earth lead 411, second earth lead 414, 3rd earth lead 421 and the 4th earth lead 424 lay respectively at complex signal transfer wire two side place, and the first power lead 412, second source wire 413, 3rd power lead 422 and the 4th power lead 423 are cross-placed on the metallic plate 431 at shield about 43 two side place respectively, namely by metallic plate 431 by the first power lead 412, second source wire 413, 3rd power lead 422 and the 4th power lead 423 are formed with complex signal transfer wire and shield and isolation.

This shield shell 5 inside is for having the grafting space 50 of lateral direction penetrating, and upper and lower two side places are all provided with the hanging shape plural number grounding elastic part 51 that relative inner bending extends towards direction, grafting space 50 at shield shell 5 rear, and each grounding elastic part 51 end is formed with the cone-shaped supporting surface 511 of relative interior convergent.

This align member 6 is for having the first shell 61 and being incorporated into the second housing 62 located below the first shell 61, and be provided with at the first shell 61 and second housing 62 2 side place and fasten the convex button 611 of the plural number of locating and catching groove 621 in corresponding, and the first shell 61 is the plural contact flat spring 612 being respectively equipped with hanging shape with second housing 62 relative inner place, 622, and locate all outwards to transfer the smooth shape Extendible flake 613 being extended with and mutually supporting and paste on front side of the first shell 61 with second housing 62, 623, and two Extendible flakes 613, relative perforation 614 is respectively equipped with on 623, 624, again in perforation 614, a retaining element (not shown) is equipped with in 624.

When the utility model is in time assembling, first metal ground plate 3 is positioned to be formed between the first end stroma 23 of electrical module 2 and the second terminal base 24 mutually stacked, and utilize the chimeric mode fixed to be assembled into semi-finished product, namely first end subgroup 21 is made by the first terminal seat 23 and the second terminal base 24, second terminal group 22 forms the effect of isolating with insulation with metal ground plate 3, and the padded portion 31 of metal ground plate 3 is piercing in first end stroma 23 and the second terminal base 24 periphery place with stator 32, again in the first end stroma 23 of electrical module 2, after second terminal base 24 and stator 32 outside of metal ground plate 3 utilize plastics to have insulating body 1 so that the mode of inlaying injection is one-body molded, just can first end stroma 23 and the second terminal base 24 be incorporated in the located space 120 of docking section 12, and make the first contact site 211 of first end subgroup 21 and the second contact site 221 of the second terminal group 22 pass respectively and expose to hyoplastron about the 121 two side place of docking section 12, and first connecting portion 212, second connecting portion 222 and the padded portion 31 of metal ground plate 3 expose to accommodation space 110 place of pedestal 11 respectively, and metal ground plate 3 is also by the short slot 321 between the padded portion 31 at two side places and stator 32, accommodation space 110 place making padded portion 31 be positioned at pedestal 11 forms vacant state, and the upper cover plate 25 that first end stroma 23 and the second terminal base 24 outside cover, the buckle groove 111 that lower cover 26 is incorporated into docking section 12 is respectively interior in a location.

Continuous is be positioned in the first location notch 231 of first end stroma 23 and the second location notch 241 of the second terminal base 24 respectively by the first wire group 41 of transmission cable 4 and the second wire group 42, and with the first connecting portion 212 of first end subgroup 21, second connecting portion 222 of the second terminal group 22 can utilize welding, formed after firm engagement such as mode such as riveted joint pressing or penetrating type terminal etc. and be electrically connected, and shield 43 two metallic plates 431 be positioned between the first wire group 41 and the second wire group 42 be overlapped in metal ground plate 3 rear place respectively padded portion 31 contact-making surface 311 on form the loop of a common ground, but when practical application, also can radium-shine mode of welding be utilized to be fused into shield 43 and metal ground plate 3 to be further integrated, effectively to promote the stability of its integral ground structure, the shield 43 that this kind of electrical module 2 utilizes the metal ground plate 3 between first end subgroup 21 and the second terminal group 22 to be electrically connected at transmission cable 4 forms common ground and there is the function of ground connection, and by first power lead 412 of shield 43 by the first wire group 41 and the second wire group 42, second source wire 413,3rd power lead 422 and the 4th power lead 423 are formed with complex signal transfer wire and shield and isolation, to provide best shield effectiveness, and fabrication schedule can be simplified because not needing configuration printed circuit board (PCB) to carry out connecting and save the man-hour spent by assembling and cost, also effectively can reduce the volume taken makes its whole height reduce and more slimming, more be widely used in the electronic product of light and thin type.

Then just shield shell 5 can be covered and be positioned insulating body 1 outside, and docking section 12 is inserted in grafting space 50 form vacant state, and the grounding elastic part 51 of shield shell 5 is overlapped on the shield 43 at transmission cable 4 first wire group 41 and the second wire group 42 periphery place with supporting surface 511 respectively, simultaneously by the upper cover plate 25 made by first end stroma 23 and the second terminal base 24 external metallization material with lower cover 26 to support shell fragment 252, 262 contact at shield shell 5 internal face place respectively, shield shell 5 is made to form the loop of a common ground by shield 43 and metal ground plate 3, when first end subgroup 21 and second terminal group 22 transmitting high-frequency signal of electrical module 2, its mutual formed Electromagnetic Interference (EMI) and cross-talk can by metal ground plate 3 induced absorption, and carry out ground connection release by shield 43 directed transmission to shield shell 5, and by shield 43 by the first power lead 412, second source wire 413, 3rd power lead 422 and the 4th power lead 423 are formed with complex signal transfer wire and shield and isolation, with effectively prevent because of distance close to institute cause methd of power supply random signal to disturb disappearance generation, suppress the electromagnetism produced during high-frequency signal transmission to involve cross-talk etc. simultaneously, and then the quality making overall signal transmit is more stable and reliable.

Moreover, shield shell 5 outside is the first shell 61 and second housing 62 further combined with there being align member 6, and make the contact flat spring 612 at the first shell 61 and second housing 62 relative inner place, 622 contact on shield shell 5 respectively, again by Extendible flake 613, 623 utilize perforation 614, the retaining element (not shown) worn in 624 is incorporated into loop circuit board or casing being formed a common ground, just shield shell 5 can be relied on to coordinate align member 6 electromagnetism produced around USB connector to be involved noise interference be directed on the earth terminal of circuit board or casing and discharge, to improve the effect of ground connection and shielding.

More than illustrate the utility model just illustrative; and nonrestrictive, those of ordinary skill in the art understand, when not departing from the spirit and scope that claim limits; many amendments, change or equivalence can be made, but all will fall within protection range of the present utility model.

Claims

1. a ground structure for USB connector, is characterized in that: include insulating body, electrical module, metal ground plate and transmission cable, wherein:

2. the ground structure of USB connector according to claim 1, it is characterized in that: this insulating body outside covers and is positioned with a shield shell, and have can stretch into for docking section the grafting space forming vacant state in the inner in inside of shield casings, and upper and lower two side places, shield shell rear are provided with relative inner bending extension towards grafting direction in space and are overlapped in plural grounding elastic part shield being formed ground connection respectively.

3. the ground structure of USB connector according to claim 2, it is characterized in that: the first end stroma of this electrical module and the second terminal base outside cover the upper cover plate made by metal material respectively and be incorporated into the lower cover located below upper cover plate, and be respectively equipped with on upper cover plate and lower cover and contact at plural number shield shell being formed ground connection and support shell fragment.

4. the ground structure of USB connector according to claim 2, it is characterized in that: this shield shell is outside further combined with having the first shell of align member and being incorporated into the second housing located below the first shell, and on the first shell and second housing, be respectively equipped with the plural contact flat spring contacting at and shield shell is formed ground connection.

5. the ground structure of USB connector according to claim 4, it is characterized in that: locate outwards to transfer the smooth shape Extendible flake being extended with and mutually supporting and paste on front side of the first shell of this align member and second housing, and be respectively equipped with relative perforation on two Extendible flakes.

6. the ground structure of USB connector according to claim 1, it is characterized in that: the pedestal rear place of this insulating body is formed with an accommodation space, and upper and lower two side places are formed with the padded portion exposing to accommodation space place at metal ground plate rear, and padded portion is formed with the contact-making surface that can form ground connection for shield overlap joint on the surface.

7. the ground structure of USB connector according to claim 6, it is characterized in that: the side place of padded portion two of this metal ground plate extends back and is piercing in the stator at electrical module first end stroma and the second terminal base periphery place, and utilize that the mode of inlaying injection is one-body molded insulating body in first end stroma, the second terminal base and stator outside, and be formed with short slot respectively between two stators and padded portion.

8. the ground structure of USB connector according to claim 1, is characterized in that: the first end stroma of this electrical module with the second terminal base rear opposite external side surface is formed respectively can supply the first wire group, the second wire group locates and plural number first location notch be connected with the first connecting portion of first end subgroup, the second connecting portion of the second terminal group and the second location notch.

9. the ground structure of USB connector according to claim 1, it is characterized in that: this transmission cable includes the first wire group and the second wire group of arranging up and down and respectively having 12 wires, and in the first wire group first, 4th, 9th, 12 wire is sequentially the first earth lead, first power lead, second source wire and the second earth lead, all the other wires are all signal transmission wire, and in the relative first wire group of the second wire group first, 4th, 9th, 12 wire is sequentially the 3rd earth lead, 3rd power lead, 4th power lead and the 4th earth lead, all the other wires are all signal transmission wire, and the upper and lower two side places of shield have and can supply the first power lead, second source wire, 3rd power lead and the 4th power lead bridge formed with complex signal transfer wire thereon shield with isolation plural metallic plate.

10. the ground structure of USB connector according to claim 9, is characterized in that: this shield has and is positioned the first wire group and the second wire group signal transmission wire periphery place respectively and forms four metallic plates that stacked on top of one another arranges.