TWI747125B - Terminal structure of electrical connector - Google Patents

Abstract

The present invention relates to a terminal structure of an electrical connector. The main structure includes a plurality of plug-in terminals, and a plurality of mating terminals respectively corresponding to each of the plug-in terminals, and defines at least one at a plug-in welding portion and a plug-in fixing portion Between the butt welding part and the butt fixing part, and at least one butting beveled part between the butt welding part and the butting fixed part. The ends are respectively the butt convex ridge line and the butt concave ridge line, whereby the width of the butt fixing part is greater than or equal to the width of the plug contact part, the width of the butt welding part is equal to the width of the plug welding part, and the width of the butt fixing part is greater than the width of the butt joint. The width of the welding part and the width of the plug-in fixed part are larger than the width of the plug-in welding part to optimize the transmission characteristics of high-frequency signals.

Description

Terminal structure of electrical connector

The present invention is to provide a terminal structure of an electrical connector, in particular to a terminal structure of an electrical connector that can avoid the scattering of high-frequency signals and has a better radiation suppression effect.

Press, the board-to-board connector (English name: Board-to-board Connectors) is a kind of connector that connects parallel circuit boards. The board-to-board connector is currently the connector product with the strongest transmission capability among all connector product types. It is mainly used in power systems, communication networks, financial manufacturing, elevators, industrial automation, medical equipment, office equipment, home appliances, and military industries. Manufacturing and other industries. With the development of science and technology, the market has higher and higher requirements for board-to-board connectors. While the size is further miniaturized, the transmission performance of the product is also required to be further improved.

For example, the high functionality of mobile devices makes the packaging density of electronic components on the circuit board greater, so the number of contact terminal arrangements that make up the connector is also increasing. In consideration of size, the width of the contact terminal arrangement and The spacing will become narrower, so that the various electronic components will be affected by noise and electromagnetic interference (EMI) radiation. In order to ensure the stable and normal telecommunications transmission of the entire connector on the circuit board, most electrical connectors nowadays are equipped with a grounding element to eliminate internal electromagnetic interference (EMI) from the ground loop on the circuit board.

However, after the actual use of the above board-to-board connector, it was discovered that the following problems and deficiencies still need to be improved:

During signal transmission, especially high-frequency signals, the setting of grounding components cannot completely eliminate electromagnetic interference, and even cause high-frequency signals to scatter, which will cause insertion loss and other factors that affect the decibel value (decibel, db value) of the connector. .

Therefore, how to solve the above-mentioned conventional problems and deficiencies is the direction that the creators of the present invention and related manufacturers engaged in this industry urgently want to study and improve.

Therefore, in view of the above-mentioned deficiencies, the creator of the present invention collected relevant information, evaluated and considered multiple parties, and based on years of experience in this industry, through continuous trials and modifications, he designed this avoidable high-frequency signal. The inventor of the terminal structure of the electrical connector that scatters and has a better radiation suppression effect.

The main purpose of the present invention is to redesign the contours of the plug-in terminal and the mating terminal to control the electromagnetic interference (EMI) and decibel value (DB) during high-frequency signal transmission by using the change of shape to optimize the high-frequency signal Transmission quality.

In order to achieve the above object, the electrical connector of the present invention is a board-to-board connector, which mainly includes: a plurality of plug-in terminals, and a plurality of mating terminals respectively corresponding to each of the plug-in terminals, each of the plug-in terminals includes There is a plug-in welding portion, a plug-in fixing portion formed at one end of the plug-in welding portion, a plug-in elastic portion formed by bending at one end of the plug-in fixing portion, and a plug-in elastic portion formed at one end of the plug-in elastic portion A plug-in contact portion, and at least one plug-in beveled portion is defined between the plug-welded portion and the plug-in fixing portion, and an plug-in convex ridge line is formed between the side wall of the plug-in bevel portion and the side wall of the plug-in fixing portion , And the side wall of the inserting beveled portion and the side wall of the inserting welding portion are provided with an inserting concave ridge line, and the butting terminal includes a butting welding portion, a butting fixing portion formed at one end of the butting welding portion, and a bending A butting connecting portion formed by folding at one end of the butting fixing portion, a butting contact fixing portion extending and forming at one end of the butting connecting portion, a butting groove portion formed at one end of the butting contact fixing portion, and a bending formed on the The butting elastic portion at one end of the butting groove portion, and at least a pair of inclined surface portions are defined between the butting welding portion and the butting fixing portion, a pair of convex ridge lines are formed between the side walls of the butting inclined portion and the side walls of the butting fixing portion, and The side wall of the butting inclined surface portion and the side wall of the butting welding part are provided with a butting concave ridge line.

The present invention redesigns the appearance of the plug-in terminal and the mating terminal of the board end plate connector, so as to use the plug-in inclined surface with the plug-in convex ridge line and the plug-in concave ridge line to reduce the transmission of high-frequency signals in the plug-in terminal In the same way, the butt bevel with butt convex ridge and butt concave ridge is also used to reduce the scattering problem of high-frequency signal when the butt terminal is transmitted, and the width of the butt welding part is equal to the plug welding The width of the part to suppress radiated interference (Electromagnetic Interference, EMI), and the width of the mating fixing part is greater than the width of the butting welding part, the width of the plug fixing part is greater than the width of the plug welding part, and the butting fixing part The width is greater than or equal to the width of the plug contact portion to maintain the DB value during high-frequency signal transmission and reduce signal distortion.

With the above technology, the electromagnetic interference that exists in conventional board-to-board connectors can not be It completely eliminates and breaks through the problem of high-frequency signal scattering phenomenon, and achieves the practical progress of the above advantages.

100‧‧‧Plug-in connector

1‧‧‧Plug-in terminal

11‧‧‧Plug-in welding part

12‧‧‧Fixed part

13‧‧‧Connecting the elastic part

14‧‧‧Plug-in contact

15‧‧‧Insert bevel face

151‧‧‧Plug-in convex ridge line

152‧‧‧Connecting concave ridge line

2‧‧‧Connecting colloid

21‧‧‧Insert card slot

3‧‧‧Plug into the shielding frame

31‧‧‧Plug-in positioning plug-in

32‧‧‧Snap part

33‧‧‧Limiting foot

400‧‧‧Docking connector

4‧‧‧Docking terminal

41‧‧‧Butt welding

42‧‧‧Fixing part

43‧‧‧Butt joint

44‧‧‧Butt contact fixed part

45‧‧‧Butt groove

451‧‧‧Groove bevel

4511‧‧‧Groove convex ridge line

4512‧‧‧Concave ridge line of groove

46‧‧‧Butt elastic part

47‧‧‧Butt oblique face

471‧‧‧Butt convex ridge

472‧‧‧ butt concave ridge line

5‧‧‧Butt joint colloid

51‧‧‧Docking card slot

52‧‧‧Containing area

6‧‧‧Docking shield frame

61‧‧‧Docking positioning plug-in

62‧‧‧Abutment Department

W1, W2, W3, W4‧‧‧Width

The first figure is a perspective view of a preferred embodiment of the present invention.

The second figure is an exploded view of the preferred embodiment of the present invention.

The third figure is a cross-sectional view taken along the line A-A of the first figure of the preferred embodiment of the present invention.

The fourth drawing is a cross-sectional view taken along line B-B of the second drawing of the preferred embodiment of the present invention.

The fifth figure is a schematic diagram (1) of the male and female terminal structure of the preferred embodiment of the present invention.

The sixth figure is a schematic diagram (2) of the male and female terminal structure of the preferred embodiment of the present invention.

In order to achieve the above-mentioned purposes and effects, the technical means and structure adopted by the present invention are illustrated below in detail to illustrate the features and functions of the preferred embodiments of the present invention for a complete understanding.

Please refer to the first to sixth figures, which are the three-dimensional view of the preferred embodiment of the present invention to the schematic diagram of the male and female terminal structure (2). It can be clearly seen from the figure that the electrical connector of the present invention is board-to-board Connectors, which mainly include:

A plurality of plug-in terminals 1, each of the plug-in terminals 1 includes a plug-in welding portion 11, a plug-in fixing portion 12 formed at one end of the plug-in welding portion 11, and a bend formed at one end of the plug-in fixing portion 12 A plug-in elastic portion 13 and a plug-in contact portion 14 extending at one end of the plug-in elastic portion 13;

At least one insertion bevel 15 defined between the insertion welding portion 11 and the insertion fixing portion 12, and an insertion convex ridge line is formed between the sidewall of the insertion bevel 15 and the sidewall of the insertion fixing portion 12 151, and there is an insertion concave ridge line 152 between the side wall of the insertion inclined surface 15 and the side wall of the insertion welding portion 11;

A plurality of butting terminals 4 respectively corresponding to each of the plug-in terminals 1, and each of the butting terminals 4 includes a butting welding portion 41, a butting fixing portion 42 formed at one end of the butting welding portion 41, and a bending formed on the butting A butting connection portion 43 at one end of the fixing portion 42, a butting contact fixing portion 44 extending and formed at one end of the butting connection portion 43, and a butting contact fixing portion 44 formed on the butting contact fixing portion 4 4 A butting groove portion 45 at one end, and a butting elastic portion 46 bent and formed at one end of the butting groove portion 45;

At least one butting beveled portion 47 defined between the butting welding portion 41 and the abutting fixing portion 42, and there is a butting convex ridge line 471 between the sidewall of the butting beveled portion 47 and the sidewall of the abutting fixing portion 42, and the butting bevel There is a butting concave ridge line 472 between the side wall of the portion 47 and the side wall of the butt welding portion 41;

At least one groove slope portion 451 defined on the side wall of the abutting groove portion 45, one end of the groove slope portion 451 defines a groove convex ridge line 4511, and the other end of the groove slope portion 451 defines a groove Groove concave ridge line 4512;

A plug-in glue 2, the plug-in terminals 1 are covered and arranged on the plug-in glue 2 through the plug-in fixing portion 12, and the plug-in glue 2 has at least one plug-in slot portion 21;

The mating glue 5, the mating terminals 4 are covered and arranged on the mating glue 5 through the mating fixing portion 42, the mating glue 5 has at least a pair of mating groove portions 51, and the mating glue 5 has a container therein. The setting area 52 is for completely accommodating the following plug-in shielding frame 3;

A plug-in shielding frame 3 arranged around the plug-in rubber body 2, the plug-in shielding frame 3 has at least one buckle portion 32, and at least one plug-in positioning plug 31 correspondingly combined with the plug-in slot portion 21 , And a plurality of limit pins 33 that limit the outer side of the docking gel 5; and

A butting shielding frame 6 arranged around the butting glue 5, the butting shielding frame 6 is provided with at least one butting positioning insert 61 corresponding to the mating groove portion 51, and at least one corresponding to the buckle portion 32之接部62。 The abutment portion 62.

Through the above description, the structure of this technology can be understood, and according to the corresponding cooperation of this structure, it has the advantages of avoiding high-frequency signal scattering and improving the radiation suppression effect. The detailed explanation will be explained in the following.

With the above component assembly, it can be clearly seen from the figure that the electrical connector of the present invention is a board-to-board connector, so it includes a plug connector 100 and a mating connector 400. The plug connector 100 is composed of a plurality of The plug-in terminal 1, a plug-in glue 2 and at least one plug-in shielding frame 3 are formed, and the docking connector 400 is composed of a plurality of docking terminals 4, a mating glue body 5 and at least a mating-connecting shielding frame 6, and the plug-in glue body 2 The combination with the plug-in shield frame 3 is the action of the plug-in shield frame 3 being covered and arranged on the outside of the plug-in rubber body 2, and the plug-in positioning plug 31 of the plug-in shield frame 3 is inserted into the plug-in card slot of the plug-in rubber body 2. In the same way, the connection of the docking gel 5 and the docking shielding frame 6 is by the docking The shielding frame 6 covers the action of being arranged on the outside of the mating glue 5, and the mating positioning insert 61 of the mating shielding frame 6 is inserted into the mating card slot 51 of the mating glue 5 for positioning, and the plug connector 100 and the mating connector 400 During the combination, in addition to the combination of the plug terminal 1 and the docking terminal 4, the accommodating area 52 of the docking glue 5 is used to completely accommodate the plug shielding frame 3 and the plugging glue 2 inside, and the plugging shielding frame 3 The lower protruding limit pin 33 is limited to the outside of the mating rubber body 5, and at the same time, the protrusion-shaped buckle portion 32 inserted into the shielding frame 3 is pressed against the abutting portion 62 on the mating shielding frame 6, wherein The sides of the buckle portion 32 and the abutment portion 62 adjacent to each other are inclined, which can make the insertion action more smooth, thereby enabling the plug connector 100 and the mating connector 400 to have multiple positioning or limit positions when combined Means to provide a stable state of integration.

It is worth mentioning that there is an insertion bevel 15 between the insertion welding part 11 and the insertion fixing part 12 of the insertion terminal 1, please refer to the fifth figure, the insertion bevel 15 is from bottom to top It is tapered, and the joints of the insertion slope 15 and the insertion fixing part 12 and the insertion welding part 11 are not rounded or convex, but on the side wall of the insertion slope 15 and the insertion welding part. There is an inserting convex ridge line 151 between the side walls of the connecting and fixing portion 12, and an inserting concave ridge line 152 is provided between the side wall of the inserting beveled portion 15 and the side wall of the inserting welding portion 11. Similarly, the butting beveled portion 47 is It is tapered from top to bottom, and the joints between the butt bevel 47, the butt fixing portion 42 and the butt welding portion 41 are not rounded or convex, but on the side wall of the butt bevel 47 and butt. There is a pair of convex ridge lines 471 between the side walls of the fixed portion 42 and a pair of concave ridge lines 472 between the side walls of the butting inclined surface 47 and the side walls of the butt welding portion 41 (the above-mentioned ridge is defined as the intersection of two surfaces of the object. String). With this special design, the width W1 of the butt fixing portion 42 is greater than the width W3 of the butt welding portion 41, and the width W2 of the plug fixing portion 12 is greater than the width W4 of the plug welding portion 11. The scattering problem of the connecting terminal 1 and the connecting terminal 4 during transmission, and the width W3 of the butt welding portion 41 is equal to the width W4 of the plug welding portion 11 to suppress radiated interference (EMI), and the insertion is not restricted. The connection terminal 1 is used as a signal output or the butting terminal 4 is used as a signal output. At the same time, the width W1 of the mating fixing portion 42 is greater than the width W3 of the butting welding portion 41, and the width W2 of the plug fixing portion 12 is greater than the plug welding portion The width W4 of 11 and the width W1 of the mating fixing portion 42 are greater than or equal to the width W2 of the plug contact portion 14 to maintain the DB value during high-frequency signal transmission and reduce signal distortion.

In addition, as shown in the sixth figure, the side wall of the butting groove portion 45 is also designed with a groove oblique The face part 451, when the butting groove part 45 extends from the side of the butting contact fixing part 44 to the side of the butting elastic part 46, is in a tapered state, and is also not at the junction of the two ends of the groove slope part 451. With rounded corners and no convex contours, it has groove convex ridge lines 4511 and groove concave ridge lines 4512. This can also help reduce signal distortion.

However, the above description is only the preferred embodiments of the present invention, which does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the description and drawings of the present invention should be the same. It is included in the scope of the patent of the present invention, and is hereby stated.

In summary, the terminal structure of the electrical connector of the present invention can indeed achieve its effects and purposes when used. Therefore, the present invention is truly an invention with excellent practicability. In order to meet the requirements of an invention patent application, it is proposed in accordance with the law. For the application, I hope that the review committee will grant this invention as soon as possible to protect the hard work of the creator. If the review committee has any doubts, please feel free to write instructions.

11‧‧‧Plug-in welding part

12‧‧‧Fixed part

13‧‧‧Connecting the elastic part

14‧‧‧Plug-in contact

15‧‧‧Insert bevel face

151‧‧‧Plug-in convex ridge line

152‧‧‧Connecting concave ridge line

41‧‧‧Butt welding

42‧‧‧Fixing part

43‧‧‧Butt joint

44‧‧‧Butt contact fixed part

45‧‧‧Butt groove

46‧‧‧Butt elastic part

47‧‧‧Butt oblique face

471‧‧‧Butt convex ridge

472‧‧‧ butt concave ridge line

W1, W2, W3, W4‧‧‧Width

Claims (6)

A terminal structure of an electrical connector. The electrical connector is a board-to-board connector. It mainly includes a plurality of plug-in terminals, each plug-in terminal includes a plug-in welding part, and one end formed at the plug-in welding part The plug-in fixing portion, a plug-in elastic portion formed by bending at one end of the plug-in fixing portion, and a plug-in contact portion extending and formed at one end of the plug-in elastic portion; at least one is defined between the plug-in welding portion and The insertion slope between the insertion and fixing parts, and an insertion convex ridge line is provided between the side wall of the insertion slope and the side wall of the insertion fixing part, and the side wall of the insertion slope and the insertion welding part There is an inserting concave ridge line between the side walls; an inserting glue body, the inserting terminals are covered and arranged on the inserting glue body through the inserting fixing part, and an inserting shielding frame is arranged around the inserting glue body , The plug-in shield frame has at least one buckle portion; a plurality of butting terminals that are respectively combined with each plug-in terminal, each of the butting terminals includes a butting welding portion, and a butting fixing formed at one end of the butting welding portion Part, a butting joint part formed by bending at one end of the butting fixing part, a butting contact fixing part extending and forming at one end of the butting joint part, a butting groove part formed at one end of the butting contact fixing part, and a bending A butting elastic portion folded and formed at one end of the butting groove portion; at least one butting inclined surface portion defined between the butting welding portion and the butting fixing portion, and a side wall of the butting inclined portion and the side wall of the butting fixing portion are provided Butting convex ridge line, and a butting concave ridge line is formed between the side wall of the butting inclined surface and the side wall of the butting welding part; A butting shield frame is arranged around the body of the butting rubber body, and the butting shield frame has at least one abutting portion corresponding to the buckling portion, and the buckling portion and the side adjacent to each other of the abutting portion are inclined. In this way, the mating rubber body has a accommodating area for fully accommodating the plug shielding frame; and the width of the mating fixing part is greater than or equal to the width of the mating contact part, and the width of the mating welding part is equal to the width of the mating welding part. The width of the welding portion, the width of the butting fixing portion is larger than the width of the butting welding portion, and the width of the plug fixing portion is larger than the width of the plug welding portion. According to the terminal structure of the electrical connector described in item 1 of the scope of patent application, the mating rubber body has at least a mating card slot portion, and the mating shield frame has at least one mating card The groove portion corresponds to the mating positioning plug to be combined, the plug rubber body has at least one plug slot portion, and the plug shield frame has at least one plug positioning plug corresponding to the plug slot portion. For the terminal structure of the electrical connector described in item 1 of the scope of the patent application, the plug-in shield frame has a plurality of limit pins, which are positioned on the outside of the mating glue. According to the terminal structure of the electrical connector described in the first item of the scope of patent application, the side wall of the mating groove portion has at least one groove slope portion. As for the terminal structure of the electrical connector described in claim 4, the width of the mating groove portion on the side adjacent to the mating contact fixing portion is greater than the width of the mating groove portion on the side adjacent to the mating elastic portion. According to the terminal structure of the electrical connector described in claim 4, one end of the side wall of the inclined groove portion defines a groove convex ridge line, and the other end of the side wall of the groove inclined surface defines a groove concave ridge line.

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