JPH0229667Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a connector used for connecting electronic circuits, and more particularly to a connector in which a plurality of contacts are installed in one or more rows within a housing.

(Prior Art) Conventional connectors include those shown in FIGS. 4 to 6.

In the connector shown in Fig. 4, a set of two contact pieces A and B are formed in series so that the contact portion C faces each other, and these are arranged in a line by a continuous piece G as shown in Fig. 8. The consecutively arranged contacts D are inserted into each row of contact insertion holes F of the housing E while being connected by the same connecting pieces G, and after insertion, the connecting pieces G are separated from the contacts D and inserted into each row of the contact insertion holes F. One contact D is attached inside each.

This connector has contact insertion holes F in all rows.
Since the height of the contact portion C attached to the contact portion C is constant, when the number of contacts increases, when inserting the contact pin into the contact D between the two opposing contact pieces A and B, all of the contact pins are inserted from the initial stage of insertion. contact part C
contacts all the pins at the same time, so a large insertion pressure is applied to the same pins at the same time. For this reason, it cannot be inserted without very strong force. Since this insertion work is carried out manually, the insertion pressure is limited to about 15 kg, but as the number of contacts D increases, the insertion pressure becomes more difficult.

In order to solve this problem, connectors as shown in FIGS. 5 and 6 have been devised in the past.

In the connector shown in FIG. 5, the opposing contact portions C of each contact D are set at the same height as in the connector shown in FIG. By alternately changing the height of each contact insertion hole F in each row, the height of the contact portion C is alternately shifted vertically one row at a time, and the contacts D are mounted in the housing E.

In the connector shown in FIG. 6, the heights of the contact portions C of a large number of contacts D connected to the connecting piece G are shifted up and down, and the contacts D are inserted into the contact insertion holes F of the housing E in every other row. The contact portions C are inserted in opposite directions so that the deviated directions of the contact portions C are alternately reversed every other row.

(Problems to be solved by the invention) The connectors shown in FIGS. 5 and 6 had the following problems.

In the connector shown in Fig. 5, the height of the contact portion C is shifted vertically for each row, so when the contact pin is initially inserted, only the upper contact portion C contacts the pin, and when the pin is further pushed in, the height of the contact portion C is shifted upward and downward. The contact portion C of the two contacts. Therefore, there is an advantage that the insertion pressure at the initial stage of insertion is reduced, and insertion can be easily performed with a weak insertion force.

However, when inserting the contacts D into the contact insertion holes F, the insertion depth of each contact D must be alternately shifted one row at a time, making the insertion work cumbersome.

The connector in Fig. 6 has contact portion C of contact D.
Since the contact portions C are inserted into the contact insertion holes F with the directions alternately reversed one row at a time, the height of the contact portions C shifts vertically from row to row. Therefore, at the initial stage of insertion of the contact pin, only the upper contact part C comes into contact with the pin, and then the lower contact part C comes into contact with the pin, so the insertion pressure at the beginning of insertion is reduced and the contact pin can be easily inserted with a weak insertion force. There are advantages. Moreover, since the direction of the contact portions C is reversed for each adjacent row, there is an advantage that the left and right insertion pressures of all rows are balanced, making it easier to insert the contact pin.

However, when inserting the contacts D into the contact insertion holes F, it is necessary to change the direction of the contacts D one row at a time and insert them, which makes the insertion work troublesome.

Furthermore, if there is only one row of contact insertion holes F in the housing E, the orientation of the contact portions C cannot be reversed every other row, so tall contact portions C are lined up only on the right or left side of one row. Short contact portions C are lined up only on the opposite side. For this reason, when inserting the contact pin into contact D, the insertion pressure on the left and right sides becomes uneven, making it difficult to insert it.
Moreover, there was a problem in that all the inserted contact pins were tilted toward the short contact portion C, resulting in insufficient contact and being unusable.

Furthermore, when inspecting the connector as a product, the orientation of the contacts D must be checked one by one, making the inspection troublesome.

(Objective of the invention) An object of the invention is to provide a connector that solves the above-mentioned problems of conventional connectors.

(Means for Solving the Problems) As shown in FIGS. 1 to 3 and 7, the connector of the present invention has a pair of opposing contact pieces 6 and 7 formed in series, each of which has a A large number of contacts 5 each having contact portions 3 and 4 formed on contact pieces 6 and 7 are connected in a row by a connecting piece 8 and are inserted into one or more rows of contact mounting holes 2 of a housing 1. In a connector in which the connecting pieces 8 are inserted row by row, and then the connecting pieces 8 are separated from the contacts 5 and only the contacts 5 are attached to the respective contact mounting holes 2, the contact portions of the contact pieces 6 and 7 of each set are 3 and 4 are formed so as to be shifted toward the contact pin insertion opening 5a side of the contact 5 and the opposite direction,
Moreover, the direction in which the contact portions 3 and 4 are deviated is reversed for each appropriate number of contacts within each row of contact mounting holes 2.

(Function) In the connector of the present invention, as shown in FIGS. 1 to 3, in each row of contact mounting holes 2,
Since the contact portions 3 and 4 of the contact 5 are installed so as to be shifted in opposite directions depending on the number of contacts, when a contact pin is inserted between a pair of contact pieces 6 and 7, the same pin will not be aligned at the initial stage of insertion. Since the upper contact portion 3 or 4 abuts and then the lower contact portion 3 or 4 abuts, the insertion pressure at the initial stage of insertion is dispersed and reduced.

In addition, the contact portion 3 or 4 that comes into contact at the initial stage of insertion
However, within the same row of contact mounting holes 2, each number of contacts abuts from opposite directions as appropriate, so the contact pressure to the same pin is balanced for each row of contact mounting holes 2.

Furthermore, after the contact pin is inserted, the pin is sandwiched between the contact portions 3 and 4, so that the contact pressure becomes strong and the contact between the contact 5 and the contact pin becomes reliable.

(Embodiment) The housing 1 shown in FIGS. 1 to 3 and 7 is molded from an insulating material such as synthetic resin, and is provided with a plurality of rows of contact mounting holes 2 as in the conventional housing.

The contact 5 is formed by punching a metal piece and bending a pair of contact pieces 6 and 7 in a series so as to face each other as shown in FIG. Contact portions 3 and 4 are formed to form a contact 5. Further, a large number of contacts 5 are arranged in a row with one of the contact pieces 6 or 7 being joined to the connecting piece 8.

Furthermore, in the present invention, the positions (heights) of the contact portions 3 and 4 formed on each of the pair of contact pieces 6 and 7 are adjusted in the length direction of the contact 5 (in the contact pin insertion hole 5a).
side and the opposite direction), and the direction of the shift is reversed for every appropriate number of contacts (every two contacts in the figure) in a row connected to one continuous piece 8.

As clearly shown in FIG. 7, the contacts 5 are inserted into each row of the contact mounting holes 2 while being connected to the connecting pieces 8, and then the connecting pieces 8 are separated from the contacts 5 and each The contacts 5 are separated and mounted one by one into the contact mounting holes 2 of the contacts. As a result, as shown in FIGS. 1 to 3, within the same row of contact mounting holes 2, the contact portions 3 and 4 of every two contacts 5 are reversed and shifted in opposite directions.

(Effects of the invention) The connector of the invention has the following various effects.

Since the two contact parts 3 and 4 are shifted from the contact pin insertion opening 5a side of the contact 5 to the opposite direction, when inserting the contact pin between the two contact pieces 6 and 7, both contacts The parts 3 and 4 abut the same pin not simultaneously but separately, the contact pressure applied to the pin is dispersed, and the insertion pressure is reduced.
Therefore, it can be easily inserted with a weak force.

Moreover, after the insertion is completed, the contact pin is sandwiched between both the contact parts 3 and 4, so that the contact pressure becomes strong, and the contact between the contact 5 and the contact pin becomes reliable.

Since the direction in which the contact portions 3 and 4 of the contacts 5 in each row of contact mounting holes 2 are shifted is reversed depending on the number of contacts, the contact portions 3 and 4 are evenly pressed against both the left and right sides of the contact pin. The left and right contact pressures in each row are balanced.
Therefore, even if there is only one row of contact mounting holes 2 in the housing 1, the contact pins will not tilt as in the connector shown in FIG. 6, and the contact between the contacts 5 and the contact pins will be ensured. .

By shifting the positions of the contact portions 3 and 4 of the contacts 5 connected to the continuous piece 8 in the length direction of the contacts 5 and reversing the direction of the shift for each appropriate number of contacts, the contacts 5 can be connected to the housing 1. When installing the contacts 5 into the housing 1, there is no need to alternately shift the height or change the orientation one row at a time; just insert the contacts 5 into the housing 1.
The direction in which the contact portions 3 and 4 of the contacts 5 in each row are shifted is automatically reversed depending on the number of contacts. This also makes it easier to manufacture the connector.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view showing one embodiment of the connector of the present invention, Fig. 2 is a cross-sectional view taken along the a-a line in Fig. 1, Fig. 3 is a cross-sectional view taken along the b-b line in Fig. 1, and Figs. Fig. 6 is a partially cross-sectional explanatory diagram showing an example of a conventional connector, Fig. 7 is an explanatory diagram of how to insert a contact into a contact mounting hole in the connector of the present invention, and Fig. 8 is an explanatory diagram of how a contact is attached to a conventional connector. FIG. 6 is an explanatory diagram of installation for insertion into a hole. 1 is the housing, 2 is the contact mounting hole, 3,
4 is a contact portion, 5 is a contact, 5a is a contact pin insertion opening, and 8 is a continuous piece.

Claims (1)

[Scope of utility model registration request] A large number of contacts 5 are formed by forming a set of two opposing contact pieces 6 and 7 in a series, and each contact piece 6 and 7 has a contact portion 3 and 4 formed in a row by a continuous piece 8. The connecting piece 8 is inserted into one or more rows of contact mounting holes 2 of the housing 1 in each row, and then the connecting pieces 8 are separated from the contacts 5 so that only the contacts 5 are inserted into each contact mounting hole 2. In the attached connector, the positions of the contact portions 3 and 4 of each pair of contact pieces 6 and 7 are shifted from the contact pin insertion opening 5a side of the contact 5 to the opposite direction, and the contact portions A connector characterized in that the directions of displacement of the contacts 3 and 4 are reversed for each appropriate number of contacts within each row of contact mounting holes 2.