CN204179263U - Connector construction - Google Patents

Abstract

A kind of connector construction, be made up of insulating body, metal shell, shield group and conducting end subgroup, the wherein insulating body hyoplastron that there is base portion and extend forward, metal shell docks space around hyoplastron to be formed, shield group comprises main substrate, the first subplate and the second subplate, main substrate is arranged at hyoplastron, and the second subplate and the first subplate are that front and back are relatively arranged on base portion and are electrically connected at main substrate respectively and electrically conduct to be formed.Conducting end subgroup comprises multiple the first terminal and the second terminal, first contact site of the first terminal is arranged at the first surface of hyoplastron, its first connecting portion extend to base portion and and form the first spacing between the first subplate, second contact site of the second terminal is arranged at the second surface of hyoplastron, and its second connecting portion extends to base portion and and forms the second spacing between the second subplate.

Description

connector structure

technical field

The utility model relates to a connector structure, in particular to a connector structure which can improve the stability of characteristic impedance.

Background technique

In recent years, with the rapid development of science and technology, the use of multimedia and high-speed bandwidth has become more and more popular. The amount of data transmitted between most electronic devices continues to increase. How to transmit a large amount of electronic data in a short period of time is the trend of current information technology development. In addition to increasing the channels for transmitting electronic signals between electronic devices, the corresponding measure generally adopted at present is to increase the frequency of electronic signals transmitted between electronic devices. A connector is an electronic signal communication bridge between different electronic devices. With the increase in transmission capacity requirements, the connector is gradually facing the challenge of high-frequency signal transmission.

The Universal Serial Bus (USB) specification connector is one of the most widely used transmission interfaces in daily life. Due to the convenience, small size and reasonable cost of the USB interface, it is widely used in various work fields. There are traces of USB everywhere. Whether it is the core entertainment device of the home such as TV, personal laptop, smart phone, tablet device or office computer, printer, or even the multimedia communication and entertainment system of the car, they often rely on USB for data transmission tasks.

In order to enable USB to be applied to higher-speed signal transmission, and at the same time reduce the failure of transmission due to the wrong direction of USB insertion or wiring, the new Universal Serial Bus Type C came into being. The USB International Standards Association (USB-IF) recently announced this standard specification called the USB Type C interface. Due to the large increase in the amount of data transmitted simultaneously, corresponding electromagnetic radiation may be generated during use, which may interfere with other devices. For the normal operation of electronic components, in view of this, the industry generally uses grounding methods to reduce the generation of electromagnetic interference (EMI).

As shown in Figure 1, it is a connector structure 1 designed according to the USB Type C standard specification, which includes a rubber core 11, a shell 12, an upper row of terminals 13, a lower row of terminals 14 and a grounding piece 15, wherein the grounding piece 15 It is located between the upper row of terminals 13 and the lower row of terminals 14. This connector structure 1 mainly uses the grounding plate 15 to prevent mutual interference between the upper row of terminals 13 and the lower row of terminals 14, so as to protect and maintain the connector structure 1 high frequency performance. The relative position and spacing between the upper pins 131 of the upper row of terminals 13 and the lower pins 141 of the lower row of terminals 14 must match the layout design of the board end. Due to the influence of the circuit layout (LAYOUT) design of the board end, the upper row of terminals 13 and the rear distance L2 between the rear end of the lower row of terminals 14 and the grounding piece 15 is usually designed to be significantly larger than the front distance L1 between the front end and the grounding piece 15, so as to match the upper pins of the upper row of terminals 13 The relative position and distance between 131 and the lower pins 141 of the lower row of terminals 14 . However, this design easily causes the characteristic impedance of the front and rear ends of the connector structure 1 to change and cause instability, which affects the effect of high-frequency signal transmission, so it cannot meet the customer's signal transmission requirements.

Contents of the invention

It is known that the upper and lower rows of terminals of the connector are limited by the layout design of the board end, so that the distance between the rear end of the upper and lower rows of terminals and the grounding piece is greater than the distance between the front end and the grounding piece, so the front and rear ends of the upper and lower rows of terminals are connected to the grounding piece. The spacing between the chips is not the same, which causes the overall characteristic impedance of the connector to change and cause instability, so it is easy to cause the problem of poor high-frequency signal transmission.

The utility model provides a connector structure, which includes an insulating body, a metal shell, a shielding plate group and a conductive terminal group, wherein the insulating body has a base and a tongue extending forward from the base, the tongue It has a first surface and a second surface opposite to each other up and down. The metal shell covers the outer side of the insulating body, and the metal shell surrounds the tongue plate to form a docking space, and the docking space has a front opening. The shielding plate group is arranged on the insulating body, and the shielding plate group includes a main substrate, a first sub-board and a second sub-board, the main substrate is arranged on the tongue plate and is located between the first surface and the second surface, and the second sub-board The main substrate, the first sub-board and the second sub-board are electrically connected to each other separately from the first sub-board and independently arranged on the base and opposite to each other. The conductive terminal group is arranged on the tongue plate, wherein the conductive terminal group includes a plurality of first terminals and a plurality of second terminals, each first terminal has a first contact portion and a first connection portion connected to the first contact portion, The first contact portion is disposed on the first surface, the first connection portion extends to the base and forms a first distance from the first sub-plate, the first sub-plate is located between the first connection portion and the second sub-plate, Each second terminal has a second contact portion and a second connection portion connected to the second contact portion, the second contact portion is disposed on the second surface, and the second connection portion extends to the base and between the second sub-board A second distance is formed, and the second sub-board is located between the second connecting portion and the first sub-board.

The connector structure provided by the utility model utilizes a shielding plate group, which includes a first sub-board and a second sub-board that are separately and independently arranged, and can control the first sub-board and the second sub-board respectively The relative position between the upper and lower rows of terminals makes the distance between the rear end of the upper and lower rows of terminals and the shielding plate group approximately equal to the distance between the front end and the shielding plate group, so that the overall characteristic impedance of the connector can be controlled to be small , so that it can have a stable characteristic impedance performance during high-frequency signal transmission, so that it can solve the problem of poor high-frequency signal transmission effect that is easily produced by the known technology.

Description of drawings

FIG. 1 is a schematic cross-sectional view of a known connector structure.

FIG. 2 is a three-dimensional schematic view of the connector structure of the present invention.

FIG. 3 is an exploded schematic diagram of the connector structure in FIG. 2 .

FIG. 4 is a schematic cross-sectional view of the connector structure in FIG. 2 .

FIG. 5 is a schematic side view of the shielding plate set and the conductive terminal set in the connector structure of FIG. 2 .

Component label description:

1 connector structure

11 Rubber core

12 Shell

13 Upper row of terminals

131 Upper pin

14 Lower row of terminals

141 Bottom pin

15 ground lug

2 connector structure

3 Insulation body

31 Base

311 Storage Tank

32 Tongue plate

321 First surface

322 Second surface

33 Fixed block

34 Protection block

4 Metal Case

41 docking space

42 Front side opening

43 Welding Department

5 Shielding plate group

50 Main PCB

501 front section

502 Posterior section

503 opening

51 The first board

52 Second board

6 Conductive terminal set

61 first terminal

611 The first contact part

612 The first connecting part

613 The first pin

62 Second terminal

621 Second contact part

622 Second connecting part

623 Second pin

7 Auxiliary housing

71 Welding feet

81 Upper metal sheet

811 Shrapnel

82 Lower metal sheet

821 Grounding part

L1 front-end spacing

L2 Back-end spacing

P1 first pitch

P2 Second Pitch

P3 Third distance

R1 spacing

R2 spacing

D Spacing

Detailed ways

Please refer to Figure 2 to Figure 5, the utility model provides a connector structure, the connector structure 2 includes an insulating body 3, a metal shell 4, a shielding plate group 5 and a conductive terminal group 6, the connector The structure 2 is fixed on the circuit board (not shown) by welding.

The insulating body 3 has a base 31 and a tongue 32 extending forward from the base 31 . The tongue 32 has a first surface 321 and a second surface 322 opposite to each other up and down. In this embodiment, in order to facilitate the assembly and manufacture of the connector structure 2, a receiving groove 311 is provided on the rear side of the base 31 of the insulating body 3, and part of the shielding plate group 5 is pre-set on a fixing block 33. Afterwards, the fixing block 33 is assembled and fixed in the receiving groove 311 of the base 31 , so as to facilitate the assembly and manufacture of the connector structure 2 . In addition, a protection block 34 can also be assembled in the receiving groove 311 , and the protection block 34 is used to cover and protect the fixing block 33 and the conductive terminal set 6 .

The metal shell 4 covers the outer side of the insulating body 3, wherein the metal shell 4 surrounds the tongue plate 32 to form a substantially annular docking space 41, and the docking space 41 has a front opening 42 for docking with The connectors (not shown) are plugged into each other. In this embodiment, a welding portion 43 is provided on both sides of the metal shell 4. In order to conform to the layout design on the circuit board, an auxiliary shell 7 can be assembled on the metal shell 4. The auxiliary shell 7 A welding foot 71 is provided on each side, plus the original welding portion 43 of the metal shell 4, so that it can conform to the layout design on the circuit board.

In order to meet the grounding design requirements of the USB standard, the connector structure 2 is additionally provided with an upper metal sheet 81 and a lower metal sheet 82. The upper metal sheet 81 and the lower metal sheet 82 are respectively assembled on the upper side and the lower side of the base 31 of the insulating body 3. side and extends toward the tongue plate 32, the upper metal sheet 81 and the lower metal sheet 82 are covered by the metal shell 4, wherein the upper metal sheet 81 is provided with a shrapnel 811 that can contact the metal shell 4 to form a ground connection, The lower metal sheet 82 is provided with a ground portion 821 which can be overlapped with the ground layout on the circuit board to form a ground connection.

The shielding plate group 5 is disposed on the insulating body 3, the shielding plate group 5 includes a main substrate 50, a first sub-board 51 and a second sub-board 52, the main substrate 50 is arranged on the tongue plate 32 and is located between the first surface 321 and the second sub-board. Between the two surfaces 322, the second sub-board 52 and the first sub-board 51 are separately and independently arranged on the base 31 and are arranged opposite to each other front and rear. Electrical conduction. In this embodiment, in order to facilitate the assembly and manufacture of the connector structure 2, the main substrate 50 can be split into a front section 501 and a rear section 502, wherein the front section 501 is first installed on the front section 501 by insert molding. Between the first surface 321 and the second surface 322, the rear section 502 extends to the base 31, the rear end of the rear section 502 is provided with a first sub-plate 51, and the rear section 502 and the first sub-plate 51 are metal stamping One-piece structure. The rear section 502 and the first sub-plate 51 of approximately L-shaped structure are first assembled on the fixed block 33, and then the second sub-plate 52 is assembled on the fixed block 33 and the second sub-plate 52 is in contact with the rear section. 502 to form electrical conduction, and then assemble the fixing block 33 in the receiving groove 311 of the base 31. At this time, the rear section 502 is in contact with the front section 501 to form electrical conduction. This process is conducive to the convenience of assembly and Make this connector structure 2.

It is worth mentioning that, in this embodiment, the front section 501 and the rear section 502 of the main substrate 50 are split into two independent components, but it is not limited thereto. Another option is that the front section of the main substrate 50 501 and the rear part 502 can also be an integrally formed structure, but at this time, the way of assembling and manufacturing the connector structure 2 should also be changed in accordance with the design of the main substrate 50, and the rear end of the main substrate 50 is also provided There is a first sub-board 51 , the main substrate 50 is integrally formed with the first sub-board 51 , and the second sub-board 52 is electrically connected to the first sub-board 51 by contacting the main substrate 50 . However, it is not limited to this, and another option is that the main substrate 50, the first sub-board 51 and the second sub-board 52 can be three separate and independent components, and the main substrate 50 is in contact with the first sub-board 51 at the same time. Form electrical conduction with the second sub-board 52, that is, the utility model does not limit the connection relationship between the main substrate 50, the first sub-board 51 and the second sub-board 52, as long as there is a connection between the three. Electrical conduction is sufficient. In addition, a plurality of openings 503 are provided on the front portion 501 of the shielding plate 5, and these openings 503 are arranged corresponding to the upper metal sheet 81 and the lower metal sheet 82, so that a better characteristic impedance effect can be obtained to meet customer signal transmission requirements.

The conductive terminal group 6 is disposed on the tongue plate 32, wherein the conductive terminal group 6 includes a plurality of first terminals 61 and a plurality of second terminals 62, and the first terminals 61 are disposed on the first surface 321 and extend backward to the base 31, the second terminals 62 are arranged on the second surface 322 and extend backward to the base 31, each first terminal 61 has a first contact portion 611, a first pin 613 and connects to the first contact portion 611 A first connection portion 612 with the first pin 613, the first contact portion 611 is disposed on the first surface 321, the first connection portion 612 extends downward to the base portion 31 relative to the first contact portion 611 and is connected to the first secondary A first distance P1 is formed between the boards 51 , the first sub-board 51 is located between the first connecting portion 612 and the second sub-board 52 , and the first pins 613 extend backward toward the rear side of the insulating body 3 . A second terminal 62 has a second contact portion 621, a second pin 623 and a second connection portion 622 connecting the second contact portion 621 and the second pin 623, the second contact portion 621 is disposed on the second surface 322 , the second connecting portion 622 extends down to the base 31 relative to the second contact portion 621 and forms a second distance P2 from the second sub-plate 52 , the second sub-plate 52 is located between the second connecting portion 622 and the first Between one sub-board 51 , the second pin 623 extends forward toward the front side of the insulating housing 3 .

In this embodiment, the front portion 502 of the main substrate 50 is located between the first contact portion 611 and the second contact portion 621, and the distance R1 between the first contact portion 611 and the main substrate 50 is substantially equal to the distance R1 between the first connecting portion 612 and the second contact portion. The first pitch P1 of a sub-board 51 , the pitch R2 of the second contact portion 621 from the main substrate 50 is substantially equal to the second pitch P2 of the second connecting portion 622 from the second sub-plate 52 , and the first pitch P1 and the second pitch P2 is substantially equal. This design can effectively control the relative positions between the first sub-board 51 and the second sub-board 52 and the first terminal 61 and the second terminal 62 respectively, so that the rear ends of the first terminal 61 and the second terminal 62 are in contact with the shielding plate group The distance between 5 is approximately equal to the distance between the front end and the shielding plate group 5, so the change in the overall characteristic impedance of the connector structure 2 can be controlled to be small, so that it can have a stable characteristic impedance performance during high-frequency signal transmission , so as to solve the problem of poor high-frequency signal transmission effect that is easily produced by known technology.

It is worth mentioning that, in this embodiment, the distance D between the first sub-board 51 and the second sub-board 52 is greater than the first distance P1. Likewise, the distance D between the first sub-board 51 and the second sub-board 52 is greater than the second distance P2. It can be seen that even if the distance between the circuit layout design of the board end is very large, the utility model can easily achieve the control of its connection with the first terminal 61 and the second sub-board 52 by utilizing the design of independent separation of the first sub-board 51 and the second sub-board 52. The purpose of the spacing between the second terminals 62 is to effectively control the overall characteristic impedance of the connector structure 2 so that it can have a stable characteristic impedance performance, which is beneficial to high-frequency signal transmission.

In this embodiment, the first sub-board 51 and the second sub-board 52 are arranged in parallel and extend vertically downward, and the first connecting portion 612 and the second connecting portion 622 are respectively along the The outer sides of 52 are arranged in parallel and extend vertically downward. The second leg 623 and the first leg 613 protrude out of the insulating body 3 and extend laterally toward the front and rear opposite directions respectively, wherein a third distance P3 is formed between the first leg 613 and the second leg 623 , and the distance P3 is formed between the first leg 613 and the second leg 623 . The third distance P3 is greater than the distance D between the first sub-board 51 and the second sub-board 52 , in this embodiment, the size of the third distance P3 is designed to be equal to the distance between the first sub-board 51 and the second sub-board 52 D plus the thickness of the first sub-board 51 and the second sub-board 52, therefore, it can be understood that as the third distance P3 between the first pin 613 and the second pin 623 increases In the case that the distance between the first pitch P1 and the second pitch P2 is constant, the distance D between the first sub-plate 51 and the second sub-plate 52 will increase accordingly.

To sum up, the connector structure of the present invention utilizes that the first sub-board and the second sub-board are equidistantly arranged on both sides of the rear end of the first terminal and the second terminal, so that the first terminal and the second terminal The distance between the shielding plate group and the shielding plate group is maintained within a relatively small range of distance, so the overall characteristic impedance of the electrical connector can be controlled to be small, and it can have a stable characteristic impedance performance, so it can be beneficial to high-frequency signals The purpose of transmission, so that it can solve the problem of poor high-frequency signal transmission that is easy to occur in known technology.

Claims (10)

1. a connector construction, comprising:

One insulating body, its hyoplastron that there is a base portion and extend forward from this base portion, this hyoplastron has the first surface and a second surface that are oppositely arranged up and down;

One metal shell, is coated on outside this insulating body, and this metal shell is around this hyoplastron to form a docking space, and this docking space has a front openings;

One shield group, be arranged at this insulating body, this shield group comprises a main substrate, one first subplate and one second subplate, this main substrate is arranged at this hyoplastron and between this first surface and this second surface, this second subplate and this first subplate are independently arranged at this base portion for distinctly separate and are that front and back are oppositely arranged, and this main substrate, formed electrically conduct between this first subplate and this second subplate; And

One conducting end subgroup, be arranged on this hyoplastron, wherein this conducting end subgroup comprises multiple the first terminal and multiple second terminal, this the first terminal each has one first contact site and connects one first connecting portion of this first contact site, this first contact site is arranged on this first surface, this first connecting portion extend to this base portion and and form one first spacing between this first subplate, this first subplate is between this first connecting portion and this second subplate, this second terminal each has one second contact site and connects one second connecting portion of this second contact site, this second contact site is arranged on this second surface, this second connecting portion extend to this base portion and and form one second spacing between this second subplate, this second subplate is between this second connecting portion and this first subplate.

2. connector construction as claimed in claim 1, it is characterized by, this first spacing is that essence is equal with this second spacing.

3. connector construction as claimed in claim 2, it is characterized by, this first contact site equals this first connecting portion this first spacing apart from this first subplate apart from the spacing essence of this main substrate, and this second contact site equals this second connecting portion this second spacing apart from this second subplate apart from the spacing essence of this main substrate.

4. connector construction as claimed in claim 2, it is characterized by, this first subplate is greater than this first spacing apart from the spacing of this second subplate.

5. connector construction as claimed in claim 3, it is characterized by, this first subplate is greater than this second spacing apart from the spacing of this second subplate.

6. connector construction as claimed in claim 3, it is characterized by, this the first terminal each has one first pin, this second terminal each has one second pin, this first pin and this second pin protrude from outside this insulating body, form one the 3rd spacing between this first pin and this second pin, the 3rd spacing is greater than the spacing of this first subplate apart from this second subplate.

7. connector construction as claimed in claim 3, it is characterized by, this first subplate and this second subplate are for be arrangeding in parallel and extending vertically downward, and this first connecting portion and this second connecting portion arrange along the external side parallel of this first subplate and this second subplate and extend vertically downward respectively.

8. connector construction as claimed in claim 3, it is characterized by, this structure more comprises:

One fixed block, be arranged on this base portion, wherein this base portion is provided with an accepting groove, and this fixed block is assembled in this accepting groove, and this first subplate and this second subplate are arranged on this fixed block; And

One protection block, be assembled in this accepting groove, wherein this protection block hides this fixed block.

9. the connector construction according to any one of claim 1 to 8, is characterized by, and the rear end of this main substrate is provided with this first subplate, and this main substrate and this first subplate are one of the forming, and this second subplate is contacted with this main substrate to electrically conduct in this first subplate.

10. connector construction as claimed in claim 9, it is characterized by, this main substrate comprises a leading portion portion and a back segment portion, this leading portion portion is positioned between this first contact site and this second contact site, this back segment portion extends to this base portion, the rear end in this back segment portion is provided with this first subplate and is one of the forming with this first subplate, and this second subplate is contacted with this back segment portion and electrically conducts to be formed, and this back segment portion is contacted with this leading portion portion and electrically conducts to be formed.