JPH043426Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a connector that can be used for various electrical connections.

"Prior art" Conventionally, as shown in Fig. 8, insulator 1
There is a connector having a large number of contact storage holes 2. As shown in FIG. 9, the contacts used in this connector include a support part 3A that fits into the contact housing hole 2 and supports the contact, a terminal part 3B led out in one direction from this support part, and a terminal part 3B that is led out in one direction from this support part. Derivation part 3C derived in the opposite direction to the derivation direction of 3B
A contact 3 is used having a structure including a contact piece 3D that branches into two protrusions from the tip of the lead-out portion.

``Problems to be Solved by the Invention'' When manufacturing the conventional contact 3, the blank is punched out as shown in FIG. As can be seen from this punched shape, more material remains after being punched out, which is uneconomical.

Also, since the arrangement pitch of the contacts 3 when punching from the material becomes large, the insulator 1
There arises an inconvenience that the arrangement pitch of the contact storage holes 2 cannot be made to match the arrangement pitch of the contact storage holes 2.

In other words, the general method for manufacturing connectors is to punch out the contact 3 from a strip of material by punching out only the part that will become the contact 3 in a continuous state without cutting off the end, as shown in Figure 10. A manufacturing method is adopted in which the insulator 1 is automatically assembled into the insulator 1 through bending, plating, etc. in its original state.

For these reasons, if the punching pitch from the material cannot match the arrangement pitch of the contact storage holes of the insulator, there will be a problem that this manufacturing method cannot be used. This problem occurs particularly when the insulator 1 is made smaller and the arrangement pitch of the contact housing holes is made smaller.

Further, in the contacts 3 housed in the insulator 1, all contact portions 4 (see FIG. 11) that come into contact with a mating contact (not particularly shown) are arranged at the same position. For this reason, when fitting a mating connector, many contacts start contacting at once, which also has the disadvantage of increasing the force required for insertion.

The purpose of this invention is to reduce waste of materials and reduce costs, and also to reduce the punching pitch of the contacts, thereby making it possible to match the arrangement pitch of the contact storage holes in the insulator with the punching pitch. The object of the present invention is to provide a new connector that can further reduce the force required to insert a mating connector.

"Means for Solving the Problems" This invention includes: A. an insulator having a plurality of contact storage holes; B. a support portion that fits into a contact storage groove formed in the insulator to support the contacts; and this support portion. A terminal part led out in one direction from the supporting part, a first lead-out part led out from the support part in the opposite direction to the lead-out direction of the terminal part, and two prongs led out from the tip of the first lead-out part in the same direction as the first lead-out part. a first contact having a shape of a first contact piece; a support portion that fits into a contact storage groove formed in the insulator to support the contact; a terminal portion led out in one direction from the support portion; a second lead-out part that is longer than the lead-out length of the first lead-out part and the first contact in a direction opposite to the lead-out direction of the terminal part; A connector is constituted by a second contact having a bifurcated second contact piece, a second contact having a fork-shaped second contact piece, and a second contact having a fork-shaped second contact piece.

[Operation] According to the configuration of the present invention, the first contact piece provided on the first contact and the second contact piece provided on the second contact protrude and extend in opposite directions when viewed from the position of the support portion. For this reason, when performing board cutting, the second contact piece is placed inside the first contact piece, and the first contact piece and the second contact piece
The contact pieces can be punched out in an interdigitated arrangement.

As a result, the contact punching pitch can be made denser than the conventional punching pitch, reducing waste of material and, in this respect, cost reduction can be expected.

Furthermore, according to this invention, when the first contact and the second contact are assembled into the insulator, they are arranged so as to extend in directions opposite to the direction in which they meet the contacts of the mating connector.

As a result, the positions of the contact portions of at least the first contact and the second contact that start contacting with the mating connector are at different positions with respect to the insertion/extraction direction of the contacts. Therefore, the force required for fitting with a mating connector can be halved.

"Embodiment" An embodiment of this invention is shown in FIGS. 1 to 4.

100 shown in FIG. 1 is a first contact used in the connector of this invention, and 200 shown in FIG. 2 is a second contact used in the connector of this invention.

The first contact 100 includes a support portion 101 and a terminal portion 102 led out in one direction from the support portion 101.
, a first lead-out part 103 led out from the support part 101 in a direction opposite to the lead-out direction of the terminal part 102;
It is configured to include a bifurcated first contact piece 104 further led out in the same direction from the tip of the lead-out portion 103.

The second contact 200 includes a support portion 201 and a terminal portion 202 led out in one direction from the support portion 201.
, a second lead-out part 203 led out from the support part 201 in a direction opposite to the lead-out direction of the terminal part 202 , and a bifurcated part led out from the tip of the second lead-out part 203 in a direction opposite to the lead-out direction of the second lead-out part 203 . A second contact piece 204 is provided.

Here, the length of the sum of the derived length L ₂ of the second derived part 203 and the derived length of the first derived part 103 and the first contact piece 104
The relationship of L ₁ is selected to be L ₁ <L ₂ .

By making this selection, when punching the first contact 100 and the second contact 200 from the material, the blanking is performed by cutting out the two-pronged first contact piece 104 that the first contact 100 has, as shown in FIG. The second contact piece 204 is disposed in the inner part 6 surrounded by , and the first contact piece 104 and the second contact piece 204 can be fitted together. As a result, the punching pitch of the contact can be made denser than before, and the wasted portion of material can be reduced accordingly.

Further, the punching pitch can be made to match the pitch when the insulator 1 is assembled. Therefore, when punching the first contact 100 and the second contact 200, it is possible to adopt a manufacturing method in which the ends are not separated and are continuously flown until they are assembled into the insulator 1 in a connected state, and automation can be easily realized. be able to.

FIG. 4 shows a state in which the first contact 100 and the second contact 200 are assembled into the insulator 1.

As is clear from FIG. 4, the first contact 10
The contact portion 105 of the second contact 200 is located in front of the contact portion 205 of the second contact 200 . For this reason, when the contact of the mating connector is inserted, the contact first contacts the contact piece 104 of the first contact 100, expands this contact piece 104 and enters, and then enters the contact piece 204 of the second contact 200. Touch and spread it.

Therefore, for example, assuming that the peak value of the insertion force is twice the steady value after insertion, the insertion force when mating the mating connector is approximately 3/4 of the conventional insertion force M ₁ as shown in Figure 6. The insertion force can be up to _M2 .

Furthermore, as shown in FIG.
2 position, and the second contact 200
By setting the mounting position to two positions, the contacts of the mating connector can be sequentially brought into contact with the contact portions 104 and 204 at four positions. Therefore, by setting the contact position to four levels in this way, the seventh
As shown in the figure, the insertion force can be set to _M3 , which is approximately 5/8 of the conventional insertion force _M1 .

"Operations and Effects of the Invention" As explained above, according to this invention, the leading directions of the contact pieces of the first contact 100 and the second contact 200 are reversed, and the length L of the second leading part 203 of the second contact 200 is ₂ and the first contact 1
By selecting the relationship between L 1 , _{the sum of the lengths of the first lead-out portion 103 of 00 and the lead-out length of the first contact piece 104 as L 1 <} L ₂ , the blanking when punching from the material is performed in a manner similar to that of the first contact 100 . The first contact piece 104 and the second contact 20
The second contact pieces 204 of 0 can be arranged so as to interdigitate with each other and then punched out.

As a result, the amount of remaining material can be reduced and the material can be used effectively. Therefore, this idea can be expected to reduce costs.

Furthermore, since the pitch at which the contacts are punched out can be made small, the pitch at which the contacts are punched out can be made to match the arrangement pitch of the contact housing holes 2 of the insulator 1.

As a result, it is possible to adopt a manufacturing method in which when punching out a contact, the end portion is not cut off, but is continuously subjected to bending processing, plating processing, etc., and finally is automatically assembled into the insulator 1. Therefore, there is an advantage that even if the connector is miniaturized, its manufacture can be automated.

Further, as in the example shown in FIG.
If the mounting positions of the contact pieces are selected so that the positions of the contact portions 105 and 205 of the second contact piece 204 and the second contact piece 204 are set in four stages, it is possible to further reduce the pulling force when mating with a mating connector.

[Brief explanation of the drawing]

Figure 1 is a perspective view for explaining the first contact used in the connector of this invention, Figure 2 is a perspective view for explaining the second contact used for the connector of this invention, and Figure 3 is the connector of this invention. 4 is a cross-sectional view illustrating the structure of the connector of this invention, and FIG. FIG. 6 is a graph for explaining the insertion force of the connector according to this invention, and FIG. 7 is a cross-sectional view for explaining the insertion force of another embodiment of this invention. The graphs and FIGS. 8 to 11 are diagrams for explaining the prior art. 1... Insulator, 2... Connector storage hole, 100... First contact, 200... Second
Contact, 101, 201...Support part, 10
2,202...terminal part, 103,203...first
Derivation part, second derivation part, 104, 204...first contact piece, second contact piece.

Claims (1)

[Scope of Claim for Utility Model Registration] A. An insulator having a plurality of contact storage holes; B. A support portion that fits into a contact storage groove formed in the insulator to support the contacts; a first lead-out part led out from the support part in a direction opposite to the lead-out direction of the terminal part; a bifurcated part led out from the tip of the first lead-out part in the same direction as the lead-out direction of the first lead-out part; 1st of
a first contact having a contact piece; C a support portion that fits into a contact storage groove formed in the insulator to support the contact; a terminal portion led out in one direction from the support portion; A second lead-out part that is longer than the lead-out length of the first lead-out part and the first contact in the opposite direction to the lead-out direction of the terminal part, and extends from the tip of the second lead-out part in the opposite direction to the lead-out direction of the second lead-out part. A connector comprising: a contact having a bifurcated second contact piece;