CN2537137Y

CN2537137Y - Clipped receptacles

Info

Publication number: CN2537137Y
Application number: CN01269858U
Authority: CN
Inventors: 余宏基
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2001-12-26
Filing date: 2001-12-26
Publication date: 2003-02-19
Anticipated expiration: 2011-12-26

Abstract

The utility model relates to a card edge connector, comprising a socket and butt-joint circuit boards, wherein the socket comprises socket terminals, and the butt-joint circuit boards are in a layer-stepping structure which comprises first laminated boards, second laminated boards and ground laminated boards which are arranged between the first laminated boards and the second laminated boards. The first and the second laminated boards are provided with first ground terminals, terminals for power supplies and terminals for signals. The ground laminated boards are provided with ground strips, wherein a plurality of second ground terminals are arranged at the front side along the inserting direction of the terminals for signals and the terminals for power supplies, which are used for ground. Namely, the socket terminals firstly ground, before every terminal for signals and every terminal for power supplies are switched in the socket in groups, and then again are connected with the terminals for signals and the terminals for power supplies. The card edge connector makes use of the design, before the butt-joint circuit boards and the socket are connected in groups, the socket terminals of the socket can eliminate upper noises or static electricity using the second ground terminals, and obtain favorable contacting effect of electrical property and transmission quality of signals.

Description

Bayonet connector

[technical field]

The utility model is relevant a kind of bayonet connector, refers to a kind of bayonet connector that obtains good signal transmission quality especially.

[background technology]

Bayonet connector generally comprises bayonet connector and butt joint circuit board, and generally be provided with earth terminal, power supply terminal and signal terminal on the butt joint circuit board, for preventing circuit board damage, terminal design on the existing circuit board is that earth terminal is the longest, power supply terminal takes second place, signal terminal is the shortest, can avoid circuit board to damage greatly with this owing to voltage becomes suddenly, this design please refer to United States Patent (USP) the 5th, 709, No. 555.

Figure 1 shows that a kind of existing bayonet connector, this bayonet connector 6 comprises socket 60 and butt joint circuit board 61, wherein dock circuit board 61 and be provided with earth terminal 610, power supply terminal 611 and signal terminal 612, and earth terminal 610 is the longest, power supply terminal 611 takes second place, and signal terminal 612 is the shortest.So make when 61 groups of butt joint circuit boards are gone into the slot 600 of socket 60 that butt joint circuit board 61 is first ground connection, turn-on power then, transmitting signals just at last, so design, circuit board 61 can not damage because electric current becomes big suddenly.But, because circuit board 61 upper end subnumbers are more and arrange intensive, the signal transmission quality can appear disturbing and influencing in the signal transmission between each terminal, also has noise and static on each female terminal 601 of while socket 60, further influences signal transmission quality and transfer of data stationarity.

[summary of the invention]

The purpose of this utility model is the bayonet connector that is to provide the preferable signal transmission quality of a kind of tool.

The purpose of this utility model is achieved in that the utility model provides a kind of bayonet connector, it comprises socket and butt joint circuit board, wherein docking circuit board is hierachical structure, comprise first laminate, second laminate and be located at therebetween ground connection laminate, on first laminate and second laminate, be provided with first earth terminal simultaneously, power supply terminal, signal terminal and be located at each power supply terminal and each signal terminal grafting direction before second earth terminal, and the ground connection laminate is provided with ground strip, and each first earth terminal and each second earth terminal are provided with the via that runs through this earth terminal and place circuit board thereof.These vias are to provide the earth terminal at its place and the ground strip on the ground connection laminate to electrically conduct by means of electroplating.In the butt joint circuit board group when going into socket, first earth terminal and be located at each power supply terminal contact with the female terminal of socket in advance with second earth terminal of each signal terminal below, female terminal can be got rid of static on it by these earth terminals at this moment.

Compared with prior art, the utlity model has following advantage: earth terminal is set up in power supply terminal on the butt joint circuit board and signal terminal below, make and got rid of top noise and static when the butt joint circuit board docks with socket, guarantee good signal transmission quality.

[description of drawings] Fig. 1 is the existing bayonet connector three-dimensional exploded view relevant with the utility model.Fig. 2 is the three-dimensional exploded view of the utility model bayonet connector.Fig. 3 is the three-dimensional exploded view of the butt joint circuit board of the utility model bayonet connector.Fig. 4 is the partial enlarged drawing of the butt joint circuit board of the utility model bayonet connector.

[embodiment]

See also Fig. 2 to Fig. 4, the utility model bayonet connector 1 comprises socket 10 and butt joint circuit board 11, wherein, butt joint circuit board 11 is a three layers structure, comprise first laminate 110, second laminate 112 and be located at therebetween ground connection laminate 111, first laminate 110 and second laminate 112 are for being symmetrical arranged, all be provided with first earth terminal 1100 on it, power supply terminal 1101, signal terminal 1102, and the length of first earth terminal 1100 is greater than the length of power supply terminal 1101, the length of power supply terminal 1101 is damaged greatly owing to voltage becomes suddenly to avoid docking circuit board 11 greater than the length of signal terminal 1102, and ground connection laminate 111 is provided with ground strip 1110.In addition, be provided with some second earth terminals 1103 in each power supply terminal 1101 and each signal terminal 1102 belows, and be provided with the via 1104 that runs through the place laminate simultaneously in each first earth terminal 1100 with each second earth terminal 1103, these vias 1104 are to borrow the coating of electroplating (not shown) to provide first earth terminal 1100 and second earth terminal 1103 and ground strip 1110 on the ground connection laminate 111 to electrically conduct and the earth terminal 1100 of winning is interconnected with each second earth terminal 1103.

Socket 10 is provided with a tank 100 in order to ccontaining butt joint circuit board 11, and some female terminals 101 are contained in this tank.For contacting simultaneously with female terminal 101, second earth terminal, 1103 length are designed to identical with first earth terminal 1100 with the power supply terminal 1101 length sums and second earth terminal 1103 with signal terminal 1102 length sums.

Socket 10 is when docking circuit board 11 and carry out winding, 11 progressive groups of tanks 100 of going into socket 10 of butt joint circuit board, and what at first contact with female terminal 101 is first earth terminal 1100 and second earth terminal 1103, be followed successively by power supply terminal 1101, signal terminal 1102 then, can prevent to dock circuit board 11 whereby and damage greatly owing to voltage becomes suddenly.Before the power supply terminal of establishing on the butt joint circuit board 11 1101 and female terminal 101 conductings of signal terminal 1102 and socket 10, to produce certain static or noise on the female terminal 101 of socket 10, and can utilize the ground strip of establishing on the ground connection laminate 111 of some second earth terminals 1103 by butt joint circuit board 11 1110 to get rid of and derive.Organize tank 100 with butt joint circuit board 11 continuation into socket 10, power supply terminal 1101 and signal terminal 1102 will electrically contact with the female terminal 101 of socket 10, owing to some second earth terminals 1103 noise on the female terminal 101 of socket 10 is got rid of before this by first earth terminal 1100, so the time power supply terminal 1101 and signal terminal 1102 and female terminal 101 to contact effect preferable, the signal transmission quality of gained is better.

Claims

1. bayonet connector, comprise socket and circuit board, wherein socket is provided with a tank, be provided with some female terminals in this tank, the butt joint circuit board has first earth terminal, power supply terminal and signal terminal in its marginal position according to the length scale sequence arrangement, it is characterized in that: each power supply terminal and each signal terminal all be provided with before the grafting direction and this power supply terminal and signal terminal between second earth terminal that disconnects mutually.

2. bayonet connector as claimed in claim 1 is characterized in that: the butt joint circuit board is a three-layer type structure, comprises first laminate, second laminate and is located at therebetween ground connection laminate.

3. bayonet connector as claimed in claim 2 is characterized in that: be provided with ground strip in this ground connection laminate.

4. bayonet connector as claimed in claim 3 is characterized in that: be provided with the via that runs through these terminals and place circuit board simultaneously in each first earth terminal and each second earth terminal.

5. bayonet connector as claimed in claim 4 is characterized in that: this via is to utilize electrodeposited coating to realize being communicated with of first earth terminal and second earth terminal and ground strip.

6. bayonet connector as claimed in claim 1 is characterized in that: second earth terminal of establishing on the butt joint circuit board and the power supply terminal of its top or the length that signal terminal length sum equals first earth terminal.

7. bayonet connector as claimed in claim 1 is characterized in that: when butt joint circuit board and socket winding, first earth terminal on it will contact with female terminal with second earth terminal simultaneously.

8. bayonet connector as claimed in claim 3 is characterized in that: second earth terminal of establishing on the connection circuit plate is by the ground strip of ground connection laminate and the first earth terminal conducting, thereby via the female terminal on the socket noise and static is got rid of.