JP2621526B2 - connector - Google Patents

Description

The present invention relates to a high-density multi-terminal connector used for a computer, an electronic exchange, a transmission device, and the like, and more particularly, to a connector having one end connected to a printed board.

[Conventional technology]

FIG. 4 is a perspective view of a conventional connector.
Conventionally, this type of connector has a housing 8 as a relay terminal block attached to a printed board 5, as shown in FIG.
And a long L-shaped terminal 15 and a short L-shaped terminal 16 which pass through a number of plug insertion holes on one surface of the housing 8 and protrude in parallel arrangement from the opposite surface.

The ends of the short L-shaped terminal 16 and the long L-shaped terminal 15 are respectively connected to the through holes 17 of the printed board 5.
And was fixed by soldering. Further, when connecting the printed board 5 to another circuit device, a male plug connected to the circuit device is inserted into this connector to perform connection.

[Problems to be solved by the invention]

However, in the conventional connector described above, the L
Since multiple terminals are buried in a parallel arrangement in a plurality of stages, with the increase in the number of terminals, the distance between adjacent heads (here, through-holes) approaches, making it difficult to solder to a printed board. .

In addition, even if the soldering can be performed, there is a disadvantage that adjacent ones are short-circuited, or it is difficult to repair a poor connection. Furthermore, when this printed circuit board is connected to an ultra-high-speed logic circuit, since the terminals are L-shaped, the conductive portions in which these terminals are parallel to each other are long, and due to parasitic inductance and capacity, the terminals are delayed by high frequencies. It has the drawback of generating time, crosstalk and noise.

On the other hand, this connector has a drawback that it has a large number of terminals to be led out and is difficult to assemble because of the multi-stage parallel arrangement, requiring a great number of man-hours. Another drawback is that automation of assembly is difficult and cost reduction cannot be expected.

An object of the present invention is to provide a connector which can solve the above drawbacks, is easy to assemble, and can be connected to a high-speed logic circuit without generating crosstalk and noise.

[Means for Solving the Problems] 1. A first connector according to the present invention includes a housing having a plurality of holes into which one ends of connector terminals are inserted, and mounting the housing and corresponding to the holes. A relay terminal block having a plurality of first through holes into which the other end is inserted and a plurality of second through holes formed to be arranged along one end face and divided into two; A conductor path formed in the relay terminal block so as to electrically connect the through hole and the second through hole, and one end inserted and fixed to the second through hole, and the other end connected to the relay terminal block And a metal leaf spring-like terminal which is led out of the second through hole and is fixed to a pad of a printed board.

2. A second connector according to the present invention comprises a housing having a number of holes into which one ends of connector terminals are inserted, and a number of holes into which the other end of the connector terminal is inserted while the housing is mounted and corresponding to the holes. A first through-hole, a relay terminal block having a step surface formed on the divided surface facing each other, and electrically connecting the first through hole and a conductive portion of the step surface; A conductive path formed on the relay terminal block, and a metal plate having one end inserted and fixed to the step surface, the other end extending from the step surface of the relay terminal block, and fixed to a pad of a printed circuit board. And a spring-like terminal.

3. The third connector according to the present invention is the first connector, wherein the first through hole of the relay terminal block and the second
Are connected by one corresponding conductive path.

4. A fourth connector according to the present invention, in the second connector, wherein the first through hole of the relay terminal block and the conductive portion of the step surface are connected by one corresponding conductive path. Features.

5. A fifth connector of the present invention is characterized in that, in the first and second connectors, the whole shape of the leaf spring-like terminal is formed in a chevron shape on either side.

6. The sixth connector of the present invention is the second connector, wherein a notch is provided to connect the other ends of the plurality of leaf spring-shaped terminals formed side by side and to be parallel to the direction in which the terminals are arranged. It has a unique career.

7. The seventh connector according to the present invention, wherein in the second connector, one end of the relay terminal block is irradiated with a laser beam or an electron beam, and one end of the spring-like terminal is welded to the conductive portion of the step surface. , And are electrically connected.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a partial cross-sectional perspective view showing a connector according to an embodiment of the present invention, and FIG. 2 (a) is an upper relay terminal block in an unplated state and a lower relay terminal in a plated state in FIG. FIG. 2 (b) is a partial sectional view showing a part of FIG. 1 in an enlarged manner. As shown in FIGS. 1 and 2 (a) and (b), this connector has a connector terminal 4 having a pressfit terminal 2 having a flexible structure and a female contact 3 on both sides, and a female contact of the connector terminal 4. Housing 8 formed with a large number of holes into which three sides are inserted.
A first through-hole 12 is formed on the surface of the housing 8 into which the press-fit terminal 2 of the connector terminal 4 is inserted, and a copper conductor path 13 extending from both ends of the first through-hole 12 is formed on the surface. Divided relay terminal block 11 formed with second through hole 14 to be connected
a and 11b, and one end is inserted into the second through hole 14 of each of the two relay terminal blocks 11a and 11b, and is fixed to a conductive portion which is a copper metal film.
And a leaf spring-like terminal 7 which is bent in a mountain shape and is fixed to the terminal. This connector is also used for the relay terminal block.
The supporting portions 11a and 11b are fixed to the printed circuit board 5 by screws.

Here, the manufacture of these components will be described. First, the housing 8 is manufactured as a resin-molded integral block, and a hole for inserting the female contact 3 of the connector terminal 4 is formed. Also, two relay terminal blocks 11a and 11b
After molding, first, as shown in FIG.
After molding like the upper relay terminal block 11a, or forming a conductive part by plating or printing technology, or
A conductive portion is formed by double molding of the insulating resin and the conductive resin. That is, the inner surfaces and lands of the first and second through holes 12 and 14, which are copper films, and the conductor paths 13 connecting these are formed, and are manufactured like the lower relay terminal block 11b. Similarly, the relay terminal block 11b similarly forms a conductive portion of a copper metal film after molding.

On the other hand, when assembling, the two relay terminal blocks 11a and 1
One end of the leaf spring-shaped terminal 7 is inserted into the second through hole 14 formed in 1b, connected by soldering or the like, and the printed board 5 is fixed between the two relay terminal blocks 11a and 11b. Next, the second through holes of the relay terminal blocks 11a and 11b
The tip of the leaf spring-like terminal 7 protruding from 14 is placed on the pad 6 of the printed board 5 and fixed with solder. Next, the press-fit terminals 2 of the connector terminals 4 are inserted into the first through holes 12, respectively, so that the connector terminals 4 and the leaf spring-like terminals 7 are conducted through the conductor paths 13. Next, the housing 8 is attached to the relay terminal blocks 11a and 11b, and the female contacts 3 of the connector terminals 4 are inserted into the holes.

The connector having such a structure has an advantage that it is very easy to assemble and can be easily disassembled and repaired. In addition, since the leaf spring-like terminals 7 protruding from the relay terminal block are arranged in a line, their tips are aligned, and there is an advantage that only one soldering is required. Further, in order to reduce the overlapping portion with the conventional one, a conductor path for connecting the first through-hole and the leaf spring-like terminal in the second through-hole is provided, whereby the overlapping portion is reduced. Therefore, there is an advantage that unnecessary inductance and capacitance are not generated and a delay time is eliminated. Furthermore, a conductor path is provided on the surface of the relay terminal block,
Since the first through-hole and the second through-hole are connected by the conductor path, the connector terminals can be more widely dispersed, and there is also an advantage that a conventional short circuit between terminals is eliminated.

3 (a) and 3 (a) are partial sectional views of a relay terminal block showing another embodiment of the present invention, and FIG. 3 (c) is a partial perspective view of a leaf spring terminal. This connector is shown in FIG.
And (b), the relay terminal blocks 11a and 11b are provided with a large number of step surfaces 10 in place of the above-described second through holes, on the end faces of the relay terminal blocks 11a and 11b facing each other. A leaf spring-like terminal 7a having one end fixed to the step surface 10
And 7b are provided with a carrier for connecting the other ends to each other. Others are the same as the conventional example.

That is, as shown in FIG.
A carrier 18 having a notch 20 formed at one end of each of 7a and 7b is provided, and this carrier 18 connects one end of all leaf spring-like terminals. As a result, the step surface 10
When welding between the conductive film and one end of the leaf spring-shaped terminals 7a and 7b,
By gripping the carrier 18 with a handler, all the leaf spring-like terminals 7a and 7b can be transported at the same time, and the positioning can be performed while maintaining the accuracy between these pitches, so that automation is easy and assembly is easier. . In the subsequent step of welding the ends of the leaf spring terminals 7a and 7b and the contact portion 10, simultaneous welding such as laser welding or electron beam welding can be performed at one time. Leaf spring-like terminals 7a, 7b
After welding one end of the carrier 18, the portion of the carrier 18 can be cut off at the cutout portion. Subsequent assembly is the same as in the previous embodiment.

Note that this embodiment has an advantage that automation in manufacturing each component is easier to implement than the above-described embodiment.

〔The invention's effect〕

As described above, the connector of the present invention is provided with holes into which one ends of connector terminals which are widely dispersed and inserted into the housing are inserted, and the first corresponding to the holes into which the other ends of these connector terminals are inserted. A relay terminal block having a through-hole and a second through-hole or a stepped surface connected side by side with the first through-hole and a conductive path is provided, and one end is fixed to the second through-hole or the stepped surface. By providing a leaf spring-like terminal whose end is led out from the relay terminal block and fixed to the pad of the printed board, the overlapping length of the leaf spring-like terminals is shortened, so that the occurrence of crosstalk and noise is also eliminated. In this case, a delay time is caused, and an effect is obtained. In addition, by fixing one end of the leaf spring-shaped terminal to each of the relay terminal blocks divided in advance into a portion connected to the conductor path, there is an effect that subsequent assembly is facilitated.

On the other hand, by forming the lead into a leaf spring-like terminal whose angle is bent in the shape of a lead, a spring force is imparted. And it is easy to connect with the pad of the printed board. In addition, since the welding side is opened by dividing the relay terminal block into two, precise welding such as laser welding or electron beam welding is used for welding the leaf spring terminal and the step surface of the relay terminal block Can be applied, and there is an effect that the structure is more precise and automation can be more easily performed. Further, by providing a carrier that connects all the terminals laterally at one end of the leaf spring-shaped terminal in the manufacturing stage, there is an effect that automation can be more easily performed.

Therefore, according to the present invention, there is an effect that an inexpensive connector that can be connected to a high-speed logic circuit, is easy to assemble and repair, and requires no man-hours for manufacturing is obtained.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional perspective view showing a connector according to an embodiment of the present invention, and FIG. 2 (a) is an upper relay terminal block in an unplated state and a lower relay terminal in a plated state in FIG. 2 (b) is a partial cross-sectional view showing an enlarged part of FIG. 1, and FIGS. 3 (a) and 3 (b) show another embodiment of the present invention. FIG. 3 (c) is a partial perspective view of a leaf spring-like terminal, and FIG. 4 is a perspective view of a connector showing an example of a conventional art. 1 ... female connector, 2 ... press-fit terminal, 3 ...
Female contact, 4 connector terminal, 5 printed board, 6 pad, 7, 7a, 7b leaf spring terminal, 8,
8a ... housing, 12a, 12, 14 ... through hole, 10
... Step surface, 11a, 11b ... Relay terminal block, 13 ... Conductor path,
15 long L-shaped terminal, 16 short L-shaped terminal, 17 through-hole, 18 carrier, 19 missing number, 20 notch.

Claims (7)

(57) [Claims] 1. A housing having a plurality of holes into which one ends of connector terminals are inserted, and a plurality of first through holes which are attached to the housing and correspond to the holes and into which the other ends of the connector terminals are inserted. A relay terminal block having a plurality of second through holes formed side by side along one end face and being divided into two, and electrically connecting the first through holes and the second through holes; A conductor path formed in the relay terminal block so as to
One end is inserted and fixed in the through-hole, and the other end is drawn out of the second through-hole of the relay terminal block, and has a metal leaf spring-like terminal fixed to a pad of a printed board. And connectors. 2. A housing having a number of holes into which one end of a connector terminal is inserted, and a plurality of first through holes to which the housing is attached and which corresponds to the hole and into which the other end of the connector terminal is inserted. A relay terminal block having a step surface formed on a divided surface that is vertically divided and faces each other, and is formed on the relay terminal block so as to electrically connect the first through hole and a conductive portion of the step surface. And a metal leaf spring-shaped terminal, one end of which is inserted and fixed to the stepped surface, the other end of which is led out from the stepped surface of the relay terminal block and is fixed to a pad of a printed board. A connector characterized in that: 3. The connector according to claim 1, wherein the first through-hole and the second through-hole of the relay terminal block are connected by one corresponding conductive path. 4. The connector according to claim 2, wherein the first through hole of the relay terminal block and the conductive portion of the step surface are connected by one corresponding conductive path. 5. The connector according to claim 1, wherein the whole shape of the leaf spring-like terminal is formed in a chevron shape on either side. 6. A carrier having a notch provided in parallel with a direction in which the other ends of the leaf spring-like terminals formed side by side are connected. 2
Connectors. 7. A laser beam or an electron beam is irradiated from one surface side of the relay terminal block, and one end of the spring-like terminal is welded to a conductive portion of the step surface to be electrically connected. The connector of claim 2, wherein