TWI725693B - Shielding structure of electrical connector - Google Patents

Abstract

The present invention relates to a shielding structure of an electrical connector. The electrical connector is a board-to-board electrical connector. Its main structure includes: a butting shielding shell, a plurality of butting shielding parts provided on the butting shielding shell, and a plurality of surroundings The butting gap formed on the butting shielding shell, the plurality of plugging shielding shells provided at the side of the butting shielding shell, the plurality of plugging shielding parts defined on the plugging shielding shell, and the plurality of plugging shielding portions defined between the plugging shielding shells For the connection gap, the width of the aforementioned plug-in shielding portion is not less than the width of the butting gap, and the width of the plug-in gap is not greater than the width of the plug-in shielding portion. With the above structure, the plug shielding portion can shield the butting gap in the docking shielding shell, and the docking shielding portion can shield the plugging gap of the plugging shielding shell, so as to achieve a 360-degree surround shielding effect and avoid electromagnetic interference.

Description

Shielding structure of electrical connector

The present invention is to provide a shielding structure for electrical connectors, in particular to a shielding structure for electrical connectors that can block the gap and achieve a 360-degree surround shielding effect, thereby avoiding electromagnetic interference.

Press, electrical connector, mainly used to connect and disconnect the circuit between two mating components, so that the two mating components can transmit power, signals or data to each other, such as: applied to single chip and circuit board, circuit board and circuit board , Or the transmission of current and electronic signals between the circuit board and the box.

The types of connectors can be roughly divided into board-end connectors and wire-end connectors. Wire-end connectors are mainly used to connect wires, such as household appliances plugs, or telephone lines, etc., while board-end connectors are also called board pairs. Board (BTB) connectors are mainly used to connect printed circuit boards (PCBs), such as: IC feet or USB connectors... etc. Board-to-board (BTB) connectors include a shell and a specific number of terminals. The terminals are made of conductive materials. (Mainly copper alloy), and electroplated to improve conductivity and anti-rust performance, while the shell is made of insulating material (mainly plastic), so that the terminal will be on the printed circuit board ( Transfer current and signal between PCB).

In recent years, electronic devices have developed in the direction of lightness, thinness and shortness, making it an inevitable trend for board-to-board connectors to gradually replace traditional cables, in order to achieve the goal of reducing the size of electronic devices.

However, today’s electronic equipment has a large demand for signal transmission, which has led to a relatively increase in the number of signal transmission terminals in board-to-board connectors, which makes the placement of the transmission signal terminals quite close. In this way, when the board-to-board connector transmits When the signal terminal is transmitting high-speed signals, it is easy to cause problems such as electromagnetic interference and crosstalk interference.

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

Therefore, in view of the above-mentioned deficiencies, the applicant of the present invention collected relevant information, evaluated and considered from many parties, and based on the accumulated years of experience in this industry, through continuous trials and modifications, he designed this kind of gap to be covered. The 360-degree surround shielding effect, thereby avoiding electromagnetic interference by the shielding structure of the electrical connector is the patentee of the invention.

The main purpose of the present invention is to achieve the 360-degree surround shielding effect by shielding the insertion gap through the butting shielding portion and the structure of the insertion shielding portion shielding the butting notch, thereby avoiding electromagnetic interference.

To achieve the above purpose, the shielding structure of the electrical connector of the present invention is a board-to-board electrical connector, and its main structure includes: a mating shielding shell, a plurality of mating shielding parts are provided on the mating shielding shell, and the butting shielding shell surrounds A plurality of butting notches are formed, and the butting notch is located at the side of the butting shielding part, and the side of the butting shielding shell is provided with a plurality of plugging shielding shells. The plugging shielding shell defines a plurality of plugging shielding parts, and the position of the plugging shielding part Corresponding to the butting gap, and the width of the plug-in shielding part is not less than the width of the mating gap, and a plurality of plug-in gaps are defined between the plug-in shielding shells, and the position of the plug-in gap corresponds to the butting shielding part, and the width of the plug-in gap Not larger than the width of the butt shielding part.

When the user brings the docking shielding shell and the plug-in shielding shell close to each other to a position where they overlap each other, the docking shielding part corresponds to the plug-in gap through its position, and the width is not less than the plug-in gap structure, which will just cover the plug-in connection The plug-in gap on the shielding shell, and the plug-in shielding part corresponds to the butting gap through its position, and the width is not less than the structure of the butting gap, it will just cover the butting gap on the butting shielding shell. At this time, the butting shielding shell and The corresponding matching of the plug-in shielding shell will make the whole present a 360-degree surround shielding effect, so that noise can be blocked from the mating shielding shell and the plug-in shielding shell, thereby avoiding electromagnetic interference.

With the above-mentioned technology, the conventional board-to-board connector has a large number of terminals and is relatively close to each other, resulting in electromagnetic interference and crosstalk interference problems, and achieves the practical advancement of the above advantages.

1‧‧‧Board-to-Board Electrical Connector

2‧‧‧Female connector

21‧‧‧Butt shielding shell

211‧‧‧Butt shield

212‧‧‧Docking gap

213‧‧‧Docking shell joint

22‧‧‧Butt joint colloid

221‧‧‧Docking terminal

222‧‧‧Butt joint colloid joint

3‧‧‧Male connector

31‧‧‧Plug-in shielding shell

311‧‧‧Plug-in shielding part

312‧‧‧Connecting gap

313‧‧‧Plug-in shell joint

314‧‧‧Clamping Department

315‧‧‧Bending wall

32‧‧‧Connecting colloid

321‧‧‧Plug-in terminal

322‧‧‧Plug-in joint

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 schematic diagram of the combination of the preferred embodiment of the present invention.

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

The fifth figure is a partial front view of the preferred embodiment of the present invention.

Figure 6 is a cross-sectional view taken along line A-A in Figure 5 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 characteristics and functions of the preferred embodiments of the present invention, so as to fully understand.

Please refer to the first and second figures, which are a perspective view and an exploded view of a preferred embodiment of the present invention. The shielding structure of an electrical connector of the present invention can be clearly seen from the figures. The electrical connector is a plate The board-to-board electrical connector 1 mainly includes:

One-to-one shielding shell 21;

A plurality of butting shielding parts 211, the butting shielding parts 211 are provided on the butting shielding shell 21;

A plurality of butting notches 212, the butting notches 212 are formed around the butting shielding shell 21 and located at the sides of each of the butting shielding portions 211;

A plurality of plug-in shielding shells 31, each of the plug-in shielding shells 31 is provided at the side of the mating shielding shell 21;

A plurality of plug-in shielding portions 311, each plug-in shielding portion 311 is defined on each plug-in shielding shell 31, and the position corresponds to each of the mating gaps 212, and the width of each plug-in shielding portion 311 is not less than that of the mating The width of the gap 212; and

A plurality of insertion notches 312, each of the insertion notches 312 is defined between each of the insertion shielding shells 31, and positions corresponding to each of the mating shielding portions 211, and the width of each of the mating notches 312 is not greater than that of each of the mating shields Width of section 211.

In this embodiment, the number of butting shielding portions 211 is taken as an example, and the butting gap is 2 Take four as an example for the number of 12, the plug-in shielding shell 31 takes the shape of ㄇ as an example and the number is two, and the number of plug-in shielding portions 311 on each plug-in shielding shell 31 is two as an example. In addition, The two plug shield shells 31 are symmetrically placed and present a square shape, but the two plug shield shells 31 are not connected, so the gap formed between the two plug shield shells 31 is the plug gap 312, and the number of plug gaps 312 Take two as an example.

Among them, the mating shielding shell 21 is provided on the mating glue 22, and the plugging shielding shell 31 is provided on a plugging glue 32.

Wherein, the mating glue 22 is provided with a plurality of mating terminals 221, and the mating glue 32 is provided with a plurality of mating terminals 321 correspondingly coupled to the mating terminals 221.

Wherein, the docking shielding shell 21 has a plurality of docking shell coupling portions 213, and the docking gel 22 has a plurality of docking gel coupling portions 222 corresponding to the docking shell coupling portion 213, and the docking shell coupling portion 213 is connected to the docking Shielding part 211.

Wherein, the plug-in shielding shell 31 has a plurality of plug-in shell coupling portions 313, and the plug-in glue 32 has a plurality of plug-in glue coupling portions 322 corresponding to the plug-in shell coupling portion 313, and the plug-in shells are combined The part 313 is connected to the plug shielding part 311.

Wherein, the plug-in shielding shell 31 has at least one engaging portion 314, and the number of the engaging portions 314 on each plug-in shielding shell 31 is three as an example.

Wherein, a plurality of bent wall portions 315 are defined on the plug-in shielding shell 31, and the bent wall portions 315 are located at the side of the plug-in shielding portion 311, and the number of the bent wall portions 315 on each plug-in shielding shell 31 is two as an example .

Through the above description, the structure of this technology can be understood, and according to the corresponding cooperation of this structure, the gap can be blocked, resulting in a 360-degree surround shielding effect, thereby avoiding electromagnetic interference during electrical coupling. The detailed explanation will In the following description.

Please also refer to the first to sixth drawings, which are the perspective view of the preferred embodiment of the present invention to the cross-sectional view taken along line AA in the fifth figure. When the above-mentioned components are assembled, it can be clearly seen from the figure. The mating shielding shell 21, the mating glue 22, and the mating terminal 221 are combined to form a female connector 2, and the plugging shielding shell 31, the mating glue 32, and the plug terminal 321 are combined to form a male connector. The connector 3 corresponds to the electrical properties of the mating terminal 221 and the plug terminal 321 With the combined structure, the female connector 2 and the male connector 3 can be combined with each other as shown in the third figure to form the board-to-board connector 1 described above.

While the female connector 2 and the male connector 3 are combined with each other, the plug-in shielding shell 31 is located in the mating shielding shell 21. The components outside the shielding shell 31 are hidden to clearly show the main components of the present invention. The part of the front view of the fifth figure is a horizontal view from the outside to one side of the mating shielding part 211. In this way, the mating shielding part 311 on the mating shielding shell 31 can be observed, and its width is not less than the mating notch 212. The structure completely shields the mating gap 212, and the mating shielding portion 211 on the mating shielding shell 21 has a structure whose width is not less than that of the mating gap 312 to completely shield the mating gap 312, thereby forming a 360-degree surrounding shield. effect.

While the docking terminal 221 and the plug terminal 321 are electrically combined, electromagnetic waves, noise, etc. can be blocked from the docking shielding shell 21 and the plugging shielding shell 31. Electromagnetic interference can cause signal transmission errors between the two electrical connectors, and even block the signal transmission. In more serious cases, it can cause accidents and cause injuries.

Electromagnetic interference is divided into conducted interference and radiated interference according to its coupling mode. Conducted interference refers to the energy of electromagnetic noise in the circuit in the form of voltage or current, passing through metal wires or other components (such as capacitors, inductors, transformers, etc.) Coupling to the interfered device (or circuit). Radiation interference refers to the electromagnetic noise energy in the form of electromagnetic field energy, which is transmitted through space radiation and coupled to the interfered device (or circuit).

Regardless of the type of electromagnetic interference, it will affect the signal transmission. As shown in Figure 6, the cross section of the contact end of the docking terminal 221 and the plug terminal 321 is taken as a cross-sectional view. In this way, it can be clearly seen The butting shielding shell 21 and the plugging shielding shell 31 are connected to each other. Through the structure of the butting shielding portion 211 and the plugging shielding portion 311, the docking terminal 221 and the plug terminal 321 are enclosed, and then the docking terminal 221 and the plug terminal 321 are electronically connected. When the signal is transmitted, the other unrelated electromagnetic wave signals are blocked from the outside to achieve the effect of 360-degree surround shielding.

In addition, through the structure that the docking shell coupling portion 213 is correspondingly coupled to the docking glue coupling portion 222, and the plugging shell coupling portion 313 is correspondingly coupled to the plugging glue coupling portion 322, the docking shielding shell 21 and the plugging shielding shell 31 can be connected. Respectively by the docking glue 22 and the inserting glue 32 When the user needs to replace the docking shielding shell 21 or the plugging shielding shell 31, the user can remove the docking shielding shell 21 and the plugging shielding shell 31 according to the above-mentioned structure, so that they can be replaced by themselves. The effect.

In addition, when the male connector 3 and the female connector 2 are combined, the above-mentioned engaging portion 314 on the plug-in shielding shell 31 will abut against the inner side wall of the mating shielding shell 21, thereby, the male connector can be lifted. The bonding strength of the connector 3 and the female connector 2 prevents the mating terminal 221 and the plug terminal 321 from being easily separated by external force, so as to stabilize the overall signal transmission process.

In addition, the above-mentioned structure of the bent wall portion 315 enables the plug-in shielding shell 31 to be more closely attached to the outside of the plug-in glue 32 when it is combined with the plug-in glue 32, thereby enhancing the bonding strength of the two. At the same time, the folding wall portion 315 also It partially shields the butting gap 212 on the butting shielding shell 21, and the bent wall portion 315 can reflect the external electromagnetic wave through its bending state, easily change the direction of the external electromagnetic wave, and then assist the insertion of the shielding portion 311 to improve the overall shielding effect .

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.

Therefore, the shielding structure of the electrical connector of the present invention can improve the conventional technology. The key lies in:

First, through the structure of the mating shielding part 211 and the mating shielding part 311, corresponding to the shielding insertion notch 312 and the mating notch 212, the overall 360-degree surround shielding effect is achieved, thereby avoiding external electromagnetic interference.

Second, through the structure of the engaging portion 314, the bonding strength between the male connector 3 and the female connector 2 is improved.

Third, through the structure of the bent wall portion 315, the bonding strength between the plug-in shielding shell 31 and the plug-in rubber body 32 is improved, and at the same time, the plug-in shielding portion 311 is assisted to improve the overall shielding effect.

In summary, the shielding structure of the electrical connector of the present invention can indeed achieve its effect and purpose when used. Therefore, the present invention is 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 the invention as soon as possible to protect the applicant's hard research and development. If the review committee of the Bureau has any doubts, please feel free to write instructions, and the applicant will do its best to cooperate, and it will be convenient.

21‧‧‧Butt shielding shell

211‧‧‧Butt shield

212‧‧‧Docking gap

213‧‧‧Docking shell joint

22‧‧‧Butt joint colloid

221‧‧‧Docking terminal

222‧‧‧Butt joint colloid joint

31‧‧‧Plug-in shielding shell

311‧‧‧Plug-in shielding part

312‧‧‧Connecting gap

313‧‧‧Plug-in shell joint

314‧‧‧Clamping Department

315‧‧‧Bending wall

32‧‧‧Connecting colloid

321‧‧‧Plug-in terminal

322‧‧‧Plug-in joint

Claims (7)

A shielding structure of an electrical connector. The electrical connector is a board-to-board electrical connector. The board-to-board electrical connector mainly includes: a mating shielding shell; a plurality of mating shielding parts, the mating shielding parts are provided in the mating On the shielding shell; a plurality of butting notches, the butting notches are formed around the butting shielding shell, and are located at the side of each of the butting shielding parts; a plurality of plug-in shielding shells, each of the plug-in shielding shells is provided in the butting shielding shell And each of the plug shielding shells has at least one engaging portion; a plurality of plugging shielding portions, each plugging shielding portion is defined on each plugging shielding shell, and the position corresponds to each of the mating notches, And the width of each of the plug-in shielding parts is not less than the width of each of the mating gaps; a plurality of plug-in gaps, each of the plug-in gaps is defined between the plug-in shielding shells, and the position corresponds to each of the mating shielding parts, and The width of each of the plug-in notches is not greater than the width of each of the mating shielding portions; and a plurality of bent wall portions, each of the bent wall portions is defined on each of the plug-in shielding shells, and each of the bent wall portions is located at each of the plug-in shielding shells On the side of the shield. In the shielding structure of the electrical connector described in the first item of the scope of patent application, the mating shielding shell is arranged on a mating glue body, and the plug-in shielding shells are arranged on a mating glue body. For the shielding structure of the electrical connector described in item 2 of the scope of patent application, wherein the mating rubber body is provided with a plurality of mating terminals, and the mating rubber body is provided with a plurality of mating terminals corresponding to each of the mating terminals. The shielding structure of the electrical connector as described in item 2 of the scope of patent application, wherein the mating shielding shell has a plurality of mating shell joints, and the mating glue body has a plurality of butting joints corresponding to each of the mating shell joints Colloidal junction. According to the shielding structure of the electrical connector described in item 4 of the scope of patent application, each of the mating shell joints is connected to each of the mating shielding parts. The shielding structure of the electrical connector as described in item 2 of the scope of patent application, wherein each of the plug-in shielding shells has a plurality of plug-in shell coupling parts, and the plug-in glue has a plurality of correspondingly coupled to each of the plug-in shells The body joint part is inserted into the glue joint part. According to the shielding structure of the electrical connector described in item 6 of the scope of patent application, each of the plug-in shell joints is connected to each of the plug-in shielding portions.

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