CN103326147A - Connector - Google Patents

Abstract

The invention relates to a connector, in particular to a connector used for connecting between a circuit board and a flexible circuit board. The connector includes an insulating body and a conductive terminal, one end of the conductive terminal extends to the bottom of the insulating body with an output end, the conductive terminal extending from the output end to the front end of the bottom of the insulating body is the first conductive terminal, and the output end extends to the insulating body The conductive terminal at the rear end of the bottom is a second conductive terminal, every two adjacent first conductive terminals form a first signal unit, and every two adjacent second conductive terminals form a second signal unit, the first signal The units and the second signal units are arranged alternately and at intervals in the direction in which the conductive terminals are arranged. The connector enables the differential signal to be connected to two conductive terminals belonging to the same signal unit when passing through the connector. Since the lengths of the two conductive terminals transmitting the differential signal are equal, the synchronous transmission of the differential signal is realized, thereby ensuring the differential signal in Quality during transmission.

Description

a connector

technical field

The invention relates to a connector, in particular to a connector used for connecting between a circuit board and a flexible circuit board.

Background technique

In today's communication digital products, many circuit modules are independently designed and manufactured, and then each working circuit module is connected through FPC (flexible circuit board) and connectors. As shown in Figures 1 and 2, it is a connector used to connect between a circuit board and an FPC in the prior art, which includes an insulating body 1 and conductive terminals arranged on the insulating body 1, wherein The input terminal 2 is used to connect to the FPC, while the output terminal 3 is welded on the circuit board. As shown in the figure, the output terminals 3 of the conductive terminals of the connector are arranged in staggered intervals in the direction of the conductive terminal arrangement, that is, the first conductive terminal The output end 3 of the first conductive terminal is at the bottom front end of the insulating body 1, the output end 3 of the second conductive terminal is at the bottom rear end of the insulating body 1, and the output end of the third conductive terminal is at the bottom front end of the insulating body 1, so that By analogy, cross-spaced arrangement. This arrangement of conductive terminals can make full use of the space of the insulating body 1, so that the connector can be made smaller. At the same time, the cross distribution of the output terminal 3 can increase the distance between each terminal of the output terminal 3, which is convenient for welding. The problem is that the lengths of two adjacent conductive terminals in the arrangement direction of the conductive terminals are not equal.

There are many differential signals in the current electronic circuit signals. As the signal frequency becomes higher and higher, the requirements for signal integrity are also higher and higher. Differential transmission is a signal transmission technology, which is different from the traditional method of one signal line and one ground line. Differential transmission transmits signals on both lines. The two signals have equal amplitudes and opposite phases. The signals transmitted on these two lines are differential signals. On the circuit board, to ensure that the differential signals are equal in length and equidistant and opposite in phase, the differential traces must be two lines of equal length, equal width, close proximity, and on the same level. In the connectors shown in Figure 1 and Figure 2, the two adjacent conductive terminals are distributed across each other, and when the differential signal in the circuit passes through the conductive terminals in this distribution mode, due to the arrangement structure of the conductive terminals, The lengths of the two adjacent conductive terminals are different, which leads to asynchronous transmission of differential signals by the conductive terminals, thereby affecting the stability of differential signal transmission.

Therefore, in order to solve the above technical problems, it is particularly important to provide a connector that can realize synchronous transmission of differential signals in the circuit and improve the quality of transmitted differential signals.

Contents of the invention

The object of the present invention is to avoid the above disadvantages in the prior art and provide a connector that realizes the synchronous transmission of differential signals and ensures the transmission quality of differential signals.

The first technical solution of the present invention is to provide a connector for electrically connecting between a circuit board and a flexible circuit board. The connector includes an insulating body and conductive terminals arranged in the insulating body, One end of the conductive terminal extends to the top of the insulating body with an input end, the other end of the conductive terminal extends to the bottom of the insulating body with an output end, and the conductive terminal extending from the output end to the front end of the bottom of the insulating body is the first A conductive terminal, the conductive terminal extending from the output end to the rear end of the bottom of the insulating body is the second conductive terminal, every two adjacent first conductive terminals form an independent first signal unit, every two adjacent second The conductive terminals form an independent second signal unit, and the first signal unit and the second signal unit are arranged alternately and at intervals in the direction in which the conductive terminals are arranged.

In the connector of the present invention, by setting two adjacent first conductive terminals as a first signal unit and setting two adjacent second conductive terminals as a second signal unit, the conductive terminals are divided into multiple first Signal unit and a plurality of second signal units, and arrange the first signal unit and the second signal unit in a staggered interval, so that the differential signal can be connected to two conductive terminals belonging to the same signal unit when passing through the connector, due to the transmission The lengths of the two conductive terminals of the differential signal are equal, so the synchronous transmission of the differential signal is realized, thereby ensuring the transmission quality of the differential signal during transmission.

The second technical solution of the present invention is given: on the basis of the first technical solution of the present invention, the distance between the two first conductive terminals of any two first signal units is equal.

The third technical solution of the present invention is given: on the basis of the first technical solution of the present invention, the distance between the two second conductive terminals of any two second signal units is equal.

The fourth technical solution of the present invention is given: on the basis of the second technical solution of the present invention, the distance between the two second conductive terminals of any two second signal units is equal.

The fifth technical solution of the present invention is given: on the basis of the fourth technical solution of the present invention, the distance between the two first conductive terminals in the first signal unit is equal to the distance between the two first conductive terminals in the second signal unit. The pitch of the second conductive terminal.

The sixth technical solution of the present invention is given: on the basis of the first technical solution of the present invention, the outermost two ends of the output terminal arrangement are provided with the first signal unit.

The seventh technical solution of the present invention is given: on the basis of the first technical solution of the present invention, the end of the input end is inclined.

Description of drawings

The present invention is further described by using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. For those of ordinary skill in the art, without paying creative work, other embodiments can also be obtained according to the following accompanying drawings Attached picture.

Fig. 1 is a schematic structural diagram of a connector in the prior art.

Fig. 2 is a structural schematic diagram of another angle of the connector of the prior art

Fig. 3 is a structural schematic diagram of a connector of the present invention.

Fig. 4 is a structural schematic diagram of another angle of a connector of the present invention.

Reference signs:

1- insulating body,

2- input terminal,

3- output terminal,

4- first conductive terminal,

5- Second conductive terminal,

6- The first signal unit,

7- Second signal unit.

Detailed ways

The present invention is further described in conjunction with the following examples.

A connector, as shown in FIG. 3 and FIG. 4 , includes an insulating body 1 and conductive terminals arranged on the insulating body 1 , the connector is used for connecting a circuit board and a flexible circuit board together. The insulating body 1 is a strip-shaped insulator, and the conductive terminals arranged therein are arranged along the length direction of the insulating body 1. One end of the conductive terminals extends to the top of the insulating body 1 with an input end 2, and the input end 2 is used for connecting with the flexible Circuit board connection, the other end of the conductive terminal extends to the bottom of the insulating body 1 with an output end 3, the output end 3 is welded on the circuit board, and the conductive terminal extending from the output end 3 to the bottom front end of the insulating body 1 is the first conductive terminal. Terminal 4, the conductive terminal extending from the output end 3 to the bottom rear end of the insulating body 1 is the second conductive terminal 5, so two columns of terminal columns will be formed at the bottom of the insulating body 1, one of which is the first conductive terminal 4, and the other row is the second conductive terminal 5 . Each adjacent two first conductive terminals 4 are taken as a group to form an independent first signal unit 6, so the entire column of first conductive terminals 4 is divided into a plurality of first signal units 6. Similarly, each phase Two adjacent second conductive terminals 5 form an independent second signal unit 7 as a group, and also divide the second conductive terminal 5 of the whole column into a plurality of second signal units 7, and divide the first signal unit 6 and the second signal unit 7 The two signal units 7 are arranged in staggered intervals along the arrangement direction of the conductive terminals. In this way, on the basis of maintaining the advantages of the existing structure, the differential signal can be connected to the two conductive terminals belonging to the same signal unit when passing through the connector. The lengths of the two conductive terminals of the signal are equal, so the synchronous transmission of the differential signal is realized, thereby ensuring the transmission quality of the differential signal during transmission.

In particular, the distance between the two first conductive terminals 4 of any two first signal units 6 is equal or the distance between the two second conductive terminals 5 of any two second signal units 7 is equal.

Preferably, the distance between the two first conductive terminals 4 of any two first signal units 6 is equal, and the distance between the two second conductive terminals 5 of any two second signal units 7 is also equal. On this basis, More preferably, the distance between the two first conductive terminals 4 in the first signal unit 6 is equal to the distance between the two second conductive terminals 5 in the second signal unit 7 .

It should be noted that, the double-row terminal row formed by the arrangement of the first signal unit 6 and the second signal unit 7 at the bottom of the insulating body 1, wherein the outermost two ends of the double-row terminal row are provided with the first Signal unit 6.

In order to make it easier for the flexible circuit board to be inserted into the input end 2 of the connector, the end of the input end 2 is inclined, which guides the insertion of the flexible circuit board.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand , the technical solution of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.

Claims (7)

1. connector, be used for being electrically connected between circuit board and the flexible PCB, this connector comprises that insulating body and spread configuration are in the conducting terminal of described insulating body, one end of described conducting terminal is extended with input to described insulating body top, the other end of described conducting terminal is extended with output to described insulating body bottom, the conducting terminal that output extends to described insulating body bottom front is the first conducting terminal, the conducting terminal that output extends to rear end, described insulating body bottom is the second conducting terminal, it is characterized in that: per two the first adjacent conducting terminals consist of an independently first signal unit, per two the second adjacent conducting terminals consist of an independently secondary signal unit, and described first signal unit and described secondary signal unit interlock in the conducting terminal orientation and be spaced.

2. a kind of connector according to claim 1 is characterized in that: the spacing of two the first conducting terminals of any two first signal unit equates.

3. a kind of connector according to claim 1 is characterized in that: the spacing of two the second conducting terminals of any two secondary signal unit equates.

4. a kind of connector according to claim 2 is characterized in that: the spacing of two the second conducting terminals of any two secondary signal unit equates.

5. a kind of connector according to claim 4, it is characterized in that: the spacing of two the first conducting terminals in the described first signal unit equals the spacing of two the second conducting terminals in the described secondary signal unit.

6. a kind of connector according to claim 1 is characterized in that: what the outermost two ends that output is arranged were set is the first signal unit.

7. a kind of connector according to claim 1 is characterized in that: the end tilts setting of described input.

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