KR940002898B1 - Electric connector - Google Patents

Abstract

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Description

Electrical connector

1 is a first embodiment of a connector according to the present invention, in which a pair of connectors are provided on each circuit board and are fitted together.

2 is an exploded perspective view of some signal contacts of the pair of connectors shown in FIG. 1 and a circuit board on which the connectors are provided.

3 is a second embodiment of a connector according to the present invention, in which a pair of connectors are provided on each circuit board and are fitted together.

4 is an exploded perspective view of some signal contacts of the pair of connectors shown in FIG. 3 and a circuit board on which the connectors are provided.

5 is a third embodiment of the connector according to the present invention, in which a pair of connectors are provided on each circuit board and are fitted together.

FIG. 6 is an exploded perspective view of some signal contacts and some ground connectors of the pair of connectors shown in FIG. 5, and a circuit board on which the connectors are installed.

7 is a fourth embodiment of the connector according to the present invention, in which a pair of connectors are provided on each circuit board and are fitted together.

* Explanation of symbols for main parts of the drawings

10,11,20,21,30,31,40,41: housing

12,13,22,23,32,33,42,43: Signal contact

16,26,36,46: Signal junction 17,27,37,47: Fixed junction

50, 51, 60, 61, 70, 71, 80, 81: circuit board

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electrical connectors and to multipole connectors suitable for mounting a patented printed circuit board.

In recent years, as the installation density of electronic systems is demanded, there is a need to directly install an electric component including an electrical connector on a printed circuit board. Usually, the means used for the installation of the component is a solder joint. However, the connector provided on the circuit board has a significantly lower adhesive strength to the circuit board of the contact of the connector than that provided using the through hole formed in the circuit board. In addition, shaking of the contact during the insertion and withdrawal operation with respect to the mating connector provided on a separate circuit board generates a large stress on the solder joint (electric joint). As a result, defects such as breakage and cracks are caused in the solder joints.

However, conventionally, a means for effectively and simply solving the problems associated with the above-described installation technique has not been proposed or taught.

SUMMARY OF THE INVENTION An object of the present invention is to provide a connector that can solve the above-mentioned problems effectively and simply by providing a fixing bonding portion for the substrate in addition to the electrical bonding portion for the printed circuit board.

The connector of the present invention for achieving the above object is directed to an electrical connector including a housing and a contact embedded in the housing.

The signal contact in this connector includes a contact portion located in the housing, a signal joining portion soldered to a circuit board in the vicinity of the distal end of the leg portion extending out of the housing in succession to the contact portion, the joining portion, and the The leg portion between the contact portions has a fixing joint portion for soldering to the circuit board.

Further, in the first and second contact groups in which the fixing joints in the connector face each other in series and are arranged in parallel with each other, the contacts are provided at every other contact, and the fixing joints are provided. It is preferable to arrange | position so that they may shift mutually.

In addition, the ground contact in the connector of the present invention for achieving the above object is a ground and soldered to the circuit board in the leg portion extending out of the housing in succession with the contact portion instead of the signal contact. It has a fixed welding part.

Moreover, it is preferable that the said ground part and the joining part for fixation in this connector are provided in connection with the said leg part of the several adjacent ground contact.

In the present invention, a desired purpose can be achieved by providing the fixing junction only in the contact disposed at a predetermined position among the signal contact and the ground contact, in which case the signal contact and The fixing junctions may be provided on both sides of the ground contact, for example, even when provided in the signal contact, it is not excluded or prevented from being provided in the ground contact.

According to the connector of the present invention, the fixing portion is provided with the leg portion where the signal bonding portion of the signal contact is located, and / or the ground portion and the bonding portion is formed with the leg portion of the ground contact. Therefore, when a pair of connectors soldered to each circuit board through each joint part is inserted and pulled out in this manner, the leg part is shaken and the breaking force is directly applied to the signal joint part. none.

EXAMPLE

An embodiment of the present invention will be described with reference to the drawings.

In the first embodiment shown in FIG. 1, a pair of housings 10 and 11 fitted to each other is provided with signal contacts 12 and 13 in contact with each other. The housings 10 and 11 have spring-like clips 14 and 15 protruding from opposite surfaces of the printed circuit boards 50 and 51, and engaging holes (not shown) provided in the circuit boards 50 and 51, respectively. Is held on the circuit boards 50 and 51. The contacts 12 and 13 are made of a conductive metal, and are contacted with the contact portions 12a and 13a located in the respective housings 10 and 11, and are continuously directed out of the housings 10 and 11, respectively. It consists of legs 12b and 13b which bend in the outward direction intersecting with this contact portion, and has a signal joining portion 16 that curves in an arc shape toward the respective circuit boards 50 and 51 in the vicinity of the tip thereof. .

As shown in FIG. 2, in the contact group 12 of the first embodiment, in the contact group in which the required number is arranged in parallel, the base 12 of the leg portion 12b of every other one positioned in the parallel direction is located. Has a fixing junction 17 that is bent to the circuit board 50 side. These contact groups are arrange | positioned so that individual contacts may oppose to a left-right side in a serial position on FIG. 2, and the contact 12 which has the fastening junction part 17 is arrange | positioned so that they may shift mutually on the left-right side. . On the other hand, in the circuit board 50, pad portions 52 and 53 are provided by application of solder paste in correspondence with the arrangement of the signal bonding portion 16 and the fixing bonding portion 17. For example, the signal bonding portion 16 and the fixing bonding portion 17 are soldered to each of the pad portions 52 and 53 by a vapor phase method. Although not shown, the arrangement of the fixing junction 17 of the contact 13 and the arrangement of the pad portion of the circuit board 51 are also the same as in the case of the contact 12 and the circuit board 50.

3 and 4 show a second embodiment in which only the shape of the joining portion for fixing the contact is different from the connector of the first embodiment shown in FIGS. 1 and 2. That is, the fixing joint part 27 of the contacts 22 and 23 is formed in the branch piece from both edges of the base of leg part 22b, 23b. The housings 20 and 21, the contact portions 22a and 23a, the signal joining portions 26, the pad portions 62 and 63 of the circuit boards 60 and 61, and the like are shown in FIGS. The same as in the first embodiment.

5 and 6, there is shown a third embodiment having a fixing junction in the ground contact. In this embodiment, the ground contacts 38 and 39 are in contact with each other. These contacts 38 and 39 are connected to the contact portions 38a and 39a continuously, respectively, and out of the housings 30 and 31, and the legs 38b and 39b which are bent in the outward direction intersecting the contact portions are Adjacent ones, respectively, are connected to each other to form a joining portion 37 for fixing. As shown in FIG. 6, the two contacts 38 having the fixing junctions 37 are arranged so as to face each other in a serial arrangement on the left and right sides, while the pad portion 73 of the circuit board 70 is disposed. And a common pad portion 73 of these two fixing bonding portions 37 facing each other. For the housings 30 and 31, the signal contact portions 32 and 33, the signal leg portions 32b and 33b, the signal junction portion 36, the pad portion 72 of the circuit board 70, and the like, The same as that of the first embodiment shown in Figs.

FIG. 7 shows a fourth embodiment in which only the shapes and structures of the connectors, the housing, and the contacts shown in FIGS. 1 to 6 differ. In the present invention, since the shape and structure of the housing and the contact are not particularly problematic, the description thereof will be omitted, but the connector of the present embodiment has a housing which can make the gap between the circuit boards 80 and 81 smaller. (40, 41) and contacts (42, 43). As for the contacts 42 and 43 having a fixed junction 47 in addition to the signal junction 46 and the lighting having the pads 82 and 83 for bonding, FIGS. The same as in the first embodiment shown in FIG.

According to the connector of this invention, it has the following effects.

In the installation of a connector on a circuit board, the signal contact has a fixing junction to the circuit board as well as a signal junction to the circuit board, so that the electrical connection by the strong bonding force with the circuit board is high. Reliability is achieved, and the contacts shake when the pair of connectors are inserted and removed, and there is no fear of breakage or cracking at the joints. Moreover, in the 1st and 2nd contact group in which the said joining part is mutually arranged in parallel and mutually parallel, it is provided in every other contact, and the contact in which the said joining part is provided is mutually mutually. By displacing the fixing joint, only half of the number of poles of the connector is present, so that the reliability and the like can be further ensured, and even if the contact is relatively densely arranged, Crosslinking can be avoided between the fixing joints.

In addition, in the installation of the connector on the circuit board, the ground contact has a ground-and-fixed joint to the circuit board. As described above, the electrical connection by the strong coupling force acquires high reliability, and a pair When the connector is plugged in and pulled out, the contact is shaken and there is no fear of breaking or cracking at the joint. In addition, since the ground and fixing joints are provided by connecting leg portions of a plurality of adjacent ground contacts, the area of the pad portion in the circuit board joining the joints is made relatively large to further ensure the reliability and the like. Can be.

Claims (4)

In the electrical connector comprising a housing and signal contacts 12, 13, 22, 23, 42, 43 embedded in the housing, the signal contacts 12, 13, 22, 23, 42, 43 And contact portions 12a, 13a, 22a, 23a located in the housings 10, 11, 20, 21, 40, 41, and the housings 10, 11, 20, 21, 40 in succession to the contact portions. Signal junctions 16, 26, 46 soldered to circuit boards 50, 51, 60, 61, 80, 81 near the tip of legs 12b, 13b, 22b, and 23b extending outwards; And the leg portions 12b, 13b, 22b, and 23b between the junction and the contact portions 12a, 13a, 22a, and 23a to the circuit boards 50, 51, 60, 61, 80, and 81. An electrical connector, characterized in that it has a fixing joint (17, 27, 47) to be soldered. In the electrical connector comprising housings 30 and 31 and ground contacts 38 and 39 embedded in the housing, the ground contacts 38 and 39 are located in the housings 30 and 31. Having a grounding and fixing joint portion 37 soldered to the circuit boards 70 and 71 in the leg portions 38b and 39b extending out of the housings 30 and 31 in succession to the contact portions 38a and 39a. An electrical connector characterized by the above-mentioned. The fixing joints 17, 27, 47 are provided in one Gurley contact in the first and second connector groups which face each other in series and are arranged in parallel. An electrical connector in which contacts with different fixing joints (17, 27, 47) are arranged to be offset from each other. 3. The electrical connector according to claim 2, wherein the ground and fixing joint portion (37) is provided by connecting the leg portions (38b, 39b) of a plurality of adjacent ground contacts (38, 39).

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