CN2446681Y

CN2446681Y - Connector device

Info

Publication number: CN2446681Y
Application number: CN 00248329
Authority: CN
Inventors: 陈惟诚
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-08
Filing date: 2000-09-08
Publication date: 2001-09-05
Anticipated expiration: 2010-09-08

Abstract

The utility model relates to a connector device which is used for being inserted in a printed circuit board. The utility model comprises a pin, a connector body and a metal casing, wherein, the metal casing comprises a shielding part and a junction part; the connector body comprises a connecting part and a fixed part; the metal casing is also provided with a grounding part which is electrically connected with a grounding wire of the printed circuit board; the grounding part is arranged in an extending way along the reverse direction of the shielding part of the metal casing from the long lateral margin of the junction part of the metal casing and the short lateral margin of the metal casing is made to be slightly longer than the short lateral margin of the fixed part of the connector body; the grounding part of the metal casing is relatively convex out of the fixed part of the connector body; the grounding part of the metal casing is completely abutted and electrically connected with the grounding line of the printed circuit board.

Description

Electrical connector

The utility model relates to a kind of electrical connector, particularly relates to a kind of electrical connector that is used in motherboard (printed circuit board (PCB)) and can filters noise in output, the input signal.

Generally has signal output; the electronic product of input function; all can on its motherboard, set a connector; in order to being connected with other device; for example for a computer motherboard; the connector of being located on the motherboard is the screen connector; the connector that printer is used; the connector that distant bar is used; parallel or the device etc. that is connected in series; yet; this each connector can be taken the noise of machine out of usually; and the generation electromagnetic interference (EMI); electromagnetic interference problem regular meeting is difficult for by the countries in the world standard one product; thereby cause manufacturer greatly to lose; for solving this problem; general manufacturer can be locked together in this each connector with an external metallization conductor, and the noise of each connector being taken out of by this external metallization conductor is directed at earth terminal.

General a kind of connector, as shown in Figure 1, it is a common D connector 1, this D connector 1 mainly includes a pin 11, a connector body 12, reaches a metal shell 13, this pin 11 is fixed on this connector body 12 by a joint element 14, and this connector 1 is plugged on the motherboard by this pin 11, and is electrically connected with the ground wire of this motherboard, this metal shell 13 includes a junction surface 131 and a shielding part 132, and is socketed on this connector body 12.Usually for fear of from connector width of cloth radio magnetic wave, manufacturer can be attached to this metal shell 13 on the external metallization conductor 15 mostly, and makes this external metallization conductor 15 ground connection, to reach the effect of filtering.

With regard to above-mentioned this kind connector, because metal shell 13 reduces the electromagnetic interference that connector produces by an external metallization conductor 15, except that the doubt that loose contact is arranged, still need and consider whether ground connection is clean, therefore, this kind connector Chang Wufa will reduce the electromagnetic interference that connector produces effectively, particularly when existing equipment is particular about high speed, the electromagnetic interference that it produced is often up to 800～900MHZ, and above-mentioned this kind connector can't adapt at all.To this, the connector of other kenels also is like this.

The purpose of this utility model is to provide a kind of electrical connector, it is by a metal shell that is provided with grounding parts, make this metal shell except that reducing the electromagnetic interference that connector produces by an external metallization conductor, also can be electrically connected with ground wire on the printed circuit board (PCB) by the grounding parts of this metal shell, make this connector except that possessing original ground connection effect, also have complete, a clean ground connection performance, thereby reach the effect that reduces electromagnetic radiation.

The purpose of this utility model is to realize like this, a kind of electrical connector promptly is provided, in order to be plugged on the printed circuit board (PCB), include a pin, an a connector body and a metal shell, described metal shell includes a shielding part and a junction surface, described connector body includes an a junction and a fixed part, wherein, this metal shell also is provided with a grounding parts that is electrically connected with the earth connection of above-mentioned printed circuit board (PCB), this grounding parts is from the long lateral margin at described metal shell junction surface, extend towards the direction opposite with this metal shell shielding part, and the short lateral margin that makes metal shell is longer than the short lateral margin of connector body fixed part slightly, this metal shell grounding parts protrudes from this connector body fixed part relatively, the adjacent fully earth connection that pastes and be electrically connected on printed circuit board (PCB) of this metal shell grounding parts.

The advantage of the utility model device is that it is provided with a grounding parts that is electrically connected with the earth connection of above-mentioned printed circuit board (PCB), and the ground connection performance is good in use to make this connector thus, can reduce electromagnetic radiation, can shield the noise in the instrument preferably.

Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail, wherein:

Fig. 1 is the three-dimensional exploded view of existing connector;

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

Fig. 3 is the three-dimensional combination figure of the utility model preferred embodiment;

Fig. 4 looks schematic perspective view for the back of the body that aspect is implemented in the utility model preferred embodiment;

Fig. 5 is the cross-section side view of Fig. 4.

Please refer to shown in Figure 2ly, the utility model includes a connector body 21, one group of pin 22, an and metal shell 23 substantially.

This connector body 21 includes a fixed part 211 and a junction 212, and this connecting portion 212 is in order to connect an outside terminal.

This group pin 22 is fixed on the fixed part 211 of above-mentioned connector body 21 by a joint element 24 respectively.

This metal shell 23 includes a shielding part 231, a junction surface 232 and a grounding parts 233, the connecting portion 212 of this shielding part 231 in order to coat above-mentioned connector body 21, this junction surface 232 engages with the fixed part 211 of above-mentioned connector body 21, this grounding parts 233 is from the lower periphery (also being the face that plugs together of above-mentioned pin 22) at these metal shell 23 junction surfaces 232, extend towards the direction opposite with above-mentioned metal shell 23 shielding parts 231, in the present embodiment, this grounding parts 233 is a panel, and this shielding part 231, junction surface 232 and grounding parts 233 are one-body molded.

Shown in Figure 3 is the combination stereogram of the utility model connector.See also Fig. 4, shown in Figure 5, the utility model connector is welded on the printed circuit board (PCB) 25 (being motherboard) of notebook computer with the fixed part 211 of connector body 21, and the junction surface 232 of metal shell 23 is attached on the earthy external metallization conductor 26, this metallic conductor 26 neighbours are affixed on the notebook computer back side of shell, and the connecting portion 212 of connector body 21 protrudes from window 27 places that the notebook computer back side of shell is reserved, be beneficial to being connected of notebook computer and its peripheral equipment, when connector of the present utility model was fixed on the printed circuit board (PCB) 25 of notebook computer, the grounding parts 233 of its metal shell 23 was to be electrically connected with the ground wire 251 of this printed circuit board (PCB) 25.

Claims

1. electrical connector, in order to be plugged on the printed circuit board (PCB), include a pin, an a connector body and a metal shell, described metal shell includes a shielding part and a junction surface, described connector body includes an a junction and a fixed part, it is characterized in that: described metal shell also is provided with a grounding parts that is electrically connected with the earth connection of above-mentioned printed circuit board (PCB), described grounding parts is from the long lateral margin at described metal shell junction surface, extend towards the direction opposite with described metal shell shielding part, and the short lateral margin that makes metal shell is longer than the short lateral margin of connector body fixed part slightly, described metal shell grounding parts protrudes from described connector body fixed part relatively, the adjacent fully earth connection that pastes and be electrically connected on printed circuit board (PCB) of described metal shell grounding parts.

2. electrical connector as claimed in claim 1 is characterized in that, described grounding parts is a panel.

3. electrical connector as claimed in claim 2 is characterized in that, the shielding part and the junction surface of described grounding parts and described metal shell are one-body molded.