CN211789830U - Electrical connector - Google Patents
Electrical connector Download PDFInfo
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- CN211789830U CN211789830U CN201922415087.XU CN201922415087U CN211789830U CN 211789830 U CN211789830 U CN 211789830U CN 201922415087 U CN201922415087 U CN 201922415087U CN 211789830 U CN211789830 U CN 211789830U
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- protection device
- electrostatic protection
- terminal
- electrical connector
- insulating body
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Abstract
The utility model provides an electric connector for install on the circuit board, it includes insulator, several conductive terminal and metal casing, conductive terminal includes ground terminal and signal terminal, the metal casing cladding insulator still includes the electrostatic protection device, the positive pole of electrostatic protection device with ground terminal electric connection, the negative pole with signal terminal electric connection, electrostatic protection device can be discharged the energy of signal terminal upper end static for static can not damage the chip, reaches the effect of protection chip, has guaranteed the normal work of system.
Description
Technical Field
The present invention relates to an electrical connector, and more particularly to an electrical connector with electrostatic protection.
Background
The main function of the existing electric connector is board level connection, and no electrostatic protection function exists, in practical application, the plugging and unplugging of the electric connector or external factors can generate a lot of electrostatic effects, and the generation of the electrostatic effects can damage chips connected on the electric connector. To avoid the influence of static electricity on the chip, an additional static electricity protection device is generally added beside the electrical connector to avoid the damage of the chip or the device caused by the static electricity.
However, the additional esd protection device occupies the area of the main board, which is disadvantageous for the miniaturization of the electronic product, and also increases the production process and labor, which results in increased product cost. In addition, when the circuit layout of the circuit board is designed, the electrostatic protection device is required to be placed as close to the electric connector as possible to achieve a better electrostatic protection effect, and great difficulty is caused in the implementation process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric connector with electrostatic discharge function.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric connector is used for being installed on a circuit board and comprises an insulating body, a plurality of conductive terminals and a metal shell, wherein the insulating body is provided with plug holes, the conductive terminals are contained in the insulating body and comprise grounding terminals and signal terminals, each conductive terminal comprises a contact part located in the plug hole and a welding pin extending out of the insulating body, the metal shell covers the insulating body, the electric connector also comprises at least one electrostatic protection device, the electrostatic protection device is provided with a positive pole and a negative pole, the positive pole of the electrostatic protection device is electrically connected with the grounding terminals, and the negative pole is electrically connected with the signal terminals.
As a further improved technical solution of the present invention, the signal terminal is provided with a plurality of signal terminals, the number of the electrostatic protection devices is the same as that of the signal terminals, and each signal terminal is electrically connected to a negative electrode of one of the electrostatic protection devices; the grounding terminal is only arranged to be one, and the positive electrode of each electrostatic protection device is electrically connected with the grounding terminal.
As a further improved technical solution of the present invention, the electrostatic protection device is fixed in the insulating body.
As a further improved technical solution of the present invention, the electrostatic protection device is connected to the grounding terminal and the contact portion of the signal terminal.
As a further improved technical scheme of the utility model, electrostatic protection device electric connection the ground terminal with the welding foot of signal terminal.
As a further improved technical scheme of the utility model, insulator be equipped with the several terminal groove of spliced eye intercommunication, each conductive terminal still wraps to insert and is fixed in the fixed part in the terminal groove, the electrostatic protection device is connected ground terminal with signal terminal the fixed part.
As a further improved technical solution of the present invention, the electrostatic protection device employs a transient diode, a zener diode, a varistor or a gas discharge tube.
As a further improved technical solution of the present invention, the electrostatic protection device is fixed in the insulating body.
As a further improved technical solution of the present invention, the electrostatic protection device is fixed to the ground terminal or/and the signal terminal.
Compared with the prior art, the utility model discloses electric connector includes the electrostatic protection device, the positive pole of electrostatic protection device with ground terminal electric connection, the negative pole with signal terminal electric connection, when the electric connector was introduced from the external world to static, static can be at first through the electrostatic protection device at the in-process of chip again through the electric connector, and the electrostatic protection device can be discharged the energy of static for static can not damage the chip, reaches the effect of protection chip, has guaranteed the normal work of system.
Drawings
Fig. 1 is a schematic plan view of the electric connector of the present invention mounted on a circuit board.
Fig. 2 is a schematic circuit diagram of the connection between the conductive terminal and the electrostatic protection device of the electrical connector of the present invention.
Detailed Description
Referring to fig. 1 to 2, the present invention discloses an electrical connector 100 for being mounted on a circuit board 200, and a chip 205 is disposed on the circuit board 200 and electrically connected to the electrical connector 100. The electrical connector 100 includes an insulative housing 10, a plurality of conductive terminals 20, a plurality of esd protection devices 30 and a metal shell 40, wherein the metal shell 40 covers the insulative housing 10.
The insulating body 10 is provided with a plug hole 12 and a terminal groove 15 communicating with the plug hole 12, for inserting and removing a mating connector (not shown).
The conductive terminals 20 and the electrostatic protection device 30 are respectively accommodated in the insulating body 10. The conductive terminals 20 include a ground terminal 21 and a plurality of signal terminals 22, each conductive terminal 20 includes a contact portion 23 located in the insertion hole 12, a soldering pin 24 extending out of the insulating body 10, and a fixing portion 25 connecting the contact portion 23 and the soldering pin 24, the contact portions 23 are arranged in two rows in the insertion hole 12, the soldering pins 24 are used for being soldered on the circuit board 200, and the fixing portions 25 are inserted into the terminal slots 15 of the insulating body 10 one by one.
The esd protection device 30 employs Transient Voltage Supplies (TVS), and the number of the esd protection device 30 is the same as that of the signal terminals 22, so as to discharge static electricity on each signal terminal 22. The esd protection device 30 has a positive electrode and a negative electrode, the positive electrode is electrically connected to the ground terminal 21, the negative electrode is electrically connected to the signal terminal 22, and specifically, the esd protection device 30 is electrically connected to the contact portion 23, the solder pin 24 or the fixing portion 25 of the conductive terminal 20. When static electricity is introduced into the electrical connector 100 from the outside, the static electricity firstly passes through the static electricity protection device 30 in the process of passing through the electrical connector 100 and then reaching the chip 205, and the static electricity protection device 30 can discharge the energy of the static electricity, so that the chip 205 is not damaged by the static electricity, the effect of protecting the chip 205 is achieved, and the normal operation of the system is ensured.
In the embodiment, the electrostatic protection device 30 may also adopt a zener diode, a voltage dependent resistor, a gas discharge tube, or the like. The electrostatic protection device 30 is fixed to the ground terminal 21 or/and the signal terminal 22.
The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical people in the related art, for example, the descriptions of the directions such as "front", "back", "left", "right", "up", "down", etc., although the present specification has described the present invention in detail with reference to the above embodiments, the ordinary skilled in the art should understand that the technical people in the related art can still modify or substitute the present invention, and all the technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.
Claims (9)
1. An electric connector is used for being installed on a circuit board and comprises an insulating body, a plurality of conductive terminals and a metal shell, wherein the insulating body is provided with a jack, the conductive terminals are contained in the insulating body and comprise grounding terminals and signal terminals, each conductive terminal comprises a contact part positioned in the jack and a welding foot extending out of the insulating body, and the metal shell coats the insulating body and is characterized in that: the electrostatic protection device is provided with a positive pole and a negative pole, the positive pole of the electrostatic protection device is electrically connected with the grounding terminal, and the negative pole of the electrostatic protection device is electrically connected with the signal terminal.
2. The electrical connector of claim 1, wherein: the number of the signal terminals is the same as that of the electrostatic protection devices, and each signal terminal is electrically connected with the negative electrode of one electrostatic protection device; the grounding terminal is only arranged to be one, and the positive electrode of each electrostatic protection device is electrically connected with the grounding terminal.
3. The electrical connector of claim 1, wherein: the electrostatic protection device is fixed in the insulating body.
4. The electrical connector of claim 1, wherein: the electrostatic protection device is connected with the contact part of the grounding terminal and the signal terminal.
5. The electrical connector of claim 1, wherein: the electrostatic protection device is electrically connected with the grounding terminal and the welding pin of the signal terminal.
6. The electrical connector of claim 1, wherein: the insulating body is provided with a plurality of terminal grooves communicated with the plug-in holes, each conductive terminal further comprises a fixing part inserted and fixed in the terminal groove, and the electrostatic protection device is connected with the grounding terminal and the fixing part of the signal terminal.
7. The electrical connector of claim 1, wherein: the electrostatic protection device adopts a transient diode, a Zener diode, a piezoresistor or a gas discharge tube.
8. The electrical connector of claim 1, wherein: the electrostatic protection device is fixed in the insulating body.
9. The electrical connector of claim 1, wherein: the electrostatic protection device is fixed on the grounding terminal or/and the signal terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922415087.XU CN211789830U (en) | 2019-12-26 | 2019-12-26 | Electrical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922415087.XU CN211789830U (en) | 2019-12-26 | 2019-12-26 | Electrical connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211789830U true CN211789830U (en) | 2020-10-27 |
Family
ID=72978452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922415087.XU Active CN211789830U (en) | 2019-12-26 | 2019-12-26 | Electrical connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211789830U (en) |
-
2019
- 2019-12-26 CN CN201922415087.XU patent/CN211789830U/en active Active
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