JP2005235488A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for preventing excessive displacement of a contact. <P>SOLUTION: An insulator 13 has the contacts 11 and housing parts 11a housing electronic components 15; the electronic component 15 is formed into a sleeve-like shape to position a contact spring part 11b of the contact 11 in its inside; and each contact spring part 11b has a projecting part 19 projecting from the outer surface of the contact spring part 11b facing to the inside wall surface of the electronic component 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a connector having an electronic component as a countermeasure against noise that causes communication interference or malfunction of the device.

  As a contact in the prior art 1, there is a female contact that is hard to be plastically deformed by an excessive external force and has a protrusion for preventing overstress of an elastic contact piece (see Patent Document 1).

  As a connector in the prior art 2, there is a connector with a noise removing device in which a ferrite member provided with a plurality of through holes that align with contact insertion holes is arranged on the front side of an insulating housing (see Patent Document 2).

  As a connector in the prior art 3, there is an electronic component built-in cable connector in which an outer conductor terminal is covered and integrated on the outer periphery of a braided reversing portion of an insulator and a shielded cable, and an electronic component is built in the cable connector side (Patent Document 3). See).

  The connector in the prior art 4 includes a female terminal fitting in which an elastic contact piece is formed continuously in front of the first base tube portion in the female electrical contact portion, and a connector housing in front of the second base tube portion. A protective sleeve having an enormous protective cylinder portion through an annular locking step portion with which the flexible locking piece engages, and the first and second base tubes are fitted to the outside of the female electrical contact portion There is a terminal fitting with a protective sleeve in which both are fixed by a portion (see Patent Document 4).

JP 7-296873 A JP-A-6-325835 JP 2002-198132 A No. 7-49736

  In Prior Art 1, the female contact alone has an overstress prevention structure. However, in general, a female contact with a box structure configured by bending a plate material has a larger width dimension in the expanded shape of the conductive plate before the contact is made by bending the conductive plate after press punching. There is a disadvantage that a large amount of material of the board has to be used.

  In addition, the prior art 1 has a drawback in that since the configuration of the elastic contact piece is complicated, the outer peripheral dimensions are large, which is disadvantageous for miniaturization and difficult to miniaturize, and it is difficult to take effective noise countermeasures.

  In the prior art 2, since the effective contact length of the contact can be reduced by the ferrite member in the structure, the contact reliability may be hindered.

  In addition, since the fitting surface of the connector constituted by a resin molded part is usually constituted by a ferrite member, dimensional accuracy is required at the position of the through hole of the ferrite member, so that the production of the ferrite member becomes complicated. There is a drawback.

  Moreover, in the prior art 3, since an electronic component is installed between the contact and the shielded cable, there is a problem that the connector becomes large.

  In the prior art 4, since the amount of displacement of the elastic contact piece is large, there is a problem that an excessive displacement cannot be prevented when an excessive stress is applied.

  In the prior art 4, when the diameter of the protective sleeve is reduced in order to reduce the displacement, the spring force of the elastic contact piece must be increased in order to obtain a constant contact force. There is a disadvantage that it becomes unstable and reliable.

  Therefore, it is an object of the present invention to provide a contact having a structure for preventing overstress of a spring piece so as not to cause plastic deformation due to excessive external force and not sacrificing space even if a ferrite sleeve is mounted for noise countermeasures. There is to do.

  The present invention provides a connector including a conductive contact that contacts a mating contact, an insulator that contains and holds the contact, and an electronic component that is provided in the insulator to absorb noise generated from the contact. Has a holding portion and a contact spring portion extending in the first direction from the holding portion, the insulator has a receiving portion for receiving the contact and the electronic component, and the electronic component is the contact spring. The contact spring portion is inserted into the housing portion from a second direction opposite to the first direction, and the contact is brought into contact with the contact by the counterpart contact. The contact spring is pressed and displaced toward the inner wall surface of the electronic component, and the contact spring portion is excessively inserted by the insertion of the mating contact. A protrusion projecting from the outer surface of the contact spring portion facing the inner wall surface of the electronic component so as to contact the inner wall surface of the electronic component and prevent excessive displacement when displaced; The most important feature is the connector.

  According to the connector of the present invention, since the protrusion is provided on the outer surface of the contact spring portion, when an excessive stress is applied to the contact spring portion to cause a large displacement, the protrusion hits the inner wall surface of the electronic component. There is an advantage that excessive displacement can be prevented.

  Further, the contact has an advantage that it can be easily assembled and miniaturized because the contact spring portion of the contact is inserted and positioned in the sleeve-shaped electronic component and the contact is accommodated in the insulator.

  The present invention includes a conductive contact that contacts a mating contact, an insulator that houses and holds the contact, and an electronic component that is provided in the insulator to absorb noise generated from the contact. The contact includes a holding portion and a contact spring portion extending from the holding portion in the first direction. The insulator has a housing portion that houses the contact and the electronic component. The electronic component has a sleeve shape so that the contact spring portion is positioned inside. The contact spring portion is pressed and displaced toward the inner wall surface of the electronic component by the mating contact that is inserted into the housing portion from the second direction opposite to the first direction and contacts the contact. And the contact spring portion facing the inner wall surface of the electronic component so as to abut against the inner wall surface of the electronic component and prevent the excessive displacement when the contact spring portion is excessively displaced by insertion of the mating contact. The connector is realized by a configuration having a protrusion protruding from the outer surface of the connector.

  1 to 3 show a first embodiment of a connector according to the present invention. 1 to 3, the connector includes a plurality of conductive contacts 11, an insulator 13 that accommodates and holds the contacts 11, and a plurality of electronic components 15 provided on the insulator 13. ing.

  The conductive counterpart contact 21 shown in FIG. 1 is in contact with the contact 11 in the first embodiment. FIG. 1 shows a part of a mating contact 21 provided as a component of a mating connector (not shown). The contact 11 in the first embodiment is a socket contact. The counterpart contact 21 is a pin contact.

  The contact 11 includes a holding portion 11a, a pair of contact spring portions 11b extending from the holding portion 11a in a first direction A (see FIG. 1), and a direction opposite to the first direction A from the holding portion 11a. It has the latching | locking part 11c connected in the 2nd direction B, the core wire holding | maintenance part 11d extended and connected to the latching | locking part 11c, and the cable holding | maintenance part 11e connected to the core wire holding | maintenance part 11d. ing.

  As an example, the contact 11 can be made by punching a thin conductive plate into a developed shape by pressing and then bending the conductive plate. The pair of contact spring portions 11b face each other. The contact spring portion 11b has a slit structure by forming a plurality of slits with long dimensions in the first and second directions A and B around a cylindrical shape with an inner diameter dimension that can accommodate the mating contact 21. The contact spring portion 11b is obtained by inclining each divided part inward to obtain a spring property.

  The locking part 11c has a lance 17 formed by cutting and raising a part of the plate part of the locking part 11c which is a thin plate part. One end of the lance 17 is connected to the plate portion of the locking portion 11c, and is an elastic portion.

  The insulator 13 has a plurality of accommodating portions 13 a that accommodate the contacts 11 and the electronic component 15. The accommodating portion 13a is a hole having a long dimension in the first and second directions A and B. In the accommodating portion 13a, a step portion 13b is formed on the inner wall surface 13f on the first direction A side of the accommodating portion 13a in order to accommodate and position the electronic component 15 on the first direction A side. An insertion hole 13 d for inserting the mating contact 21 between the contact spring portions 11 b of the contact 11 is formed in the wall portion 13 c at one end on the first direction A side of the insulator 13. Further, a recess 13g (see FIG. 3) for locking the lance 17 is formed on the inner wall surface 13f of the accommodating portion 13a.

  The contact 11 is inserted into the housing portion 13a from the second direction B side in the first direction A, and the lance 17 is locked to the recessed portion 13g. This prevents the contact 11 from moving in the second direction B, which is the direction in which the cable (not shown) held by the cable holding portion 11e and the core wire of the cable held by the core wire holding portion 11d are pulled out. ing.

  The electronic component 15 has a cylindrical sleeve shape with a long dimension in the first and second directions A and B so that the contact spring portion 11b is inserted and positioned. The electronic component 15 is made of a ferrite material in order to absorb noise generated from the contact 11.

  The leading end portion of the contact spring portion 11 b is formed with a guide portion 11 g that protrudes outward from the electronic component 15 in the first direction A from the end in the first direction A of the electronic component 15. The invitation part 11g invites the counterpart contact 21 in the second direction A and makes contact with the contact spring part 11b. The invitation portion 11g is located in the vicinity of the insertion hole 13d of the insulator 13, and is bent slightly outward to absorb misalignment with the counterpart contact 21. Further, the contact spring portion 11 b is formed with a protrusion 19 that protrudes from the outer surface of the contact spring portion 11 b facing the inner wall surface 15 a of the electronic component 15 toward the inner wall surface 15 a of the electronic component 15.

  Hereinafter, a state where the mating contact 21 is connected to the contact 11 accommodated in the connector will be described with reference to FIG.

  When the mating contact 21 is inserted from the insertion hole 13d of the insulator 13 into the accommodating portion 13a in the second direction B, the contact spring portion 11b is displaced while being pressed by the mating contact 21 toward the inner wall surface 15a of the electronic component 15. Contact in state. The protrusion 19 formed on the outer periphery of the contact spring part 11b pushes the contact spring part 11b outward by the pressing force of the mating contact 21 inserted between the contact spring parts 11b. At this time, when the counterpart contact 21 tries to give an excessive displacement to the contact spring portion 11b, the contact spring portion 11b hits the inner wall surface 15a of the electronic component 15 to prevent the excessive displacement.

  In the first embodiment, the socket contact having the contact spring portion 11b is taken as an example. However, a part of the outer surface of the contact spring portion 11b is pressed against the inner wall surface 15a of the electronic component 15 by a cantilever type socket contact or the like. Even if it is intended to prevent excessive displacement of the contact spring portion 11b, the same effect as the connector of the first embodiment can be obtained.

  The present invention can also be applied to an indispensable use as a connector used for connection of an automobile wire harness or the like.

It is sectional drawing which shows Example 1 of the connector of this invention (Example 1). It is the top view which looked at the connector shown in FIG. 1 from the fitting surface. It is sectional drawing which showed the state which cut the connector shown in FIG. 1 by the side surface. FIG. 2 is a perspective view showing a cross section of a part of the contact shown in FIG. 1 and a main part of an electronic component. It is sectional drawing which showed the state which the contact spring part displaced when the other party contact was inserted in the contact shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Contact 11a Holding | maintenance part 11b Contact spring part 13 Insulator 13a Housing | casing part 13f, 15a Inner wall surface 15 Electronic component 19 Protrusion 21 Opposite contact A 1st direction B 2nd direction

Claims (2)

In a connector including a conductive contact that contacts a mating contact, an insulator that houses and holds the contact, and an electronic component that is provided in the insulator to absorb noise generated from the contact,
The contact includes a holding portion and a contact spring portion extending in the first direction from the holding portion, the insulator includes a receiving portion that stores the contact and the electronic component, and the electronic component includes the electronic component The mating contact has a sleeve shape so that the contact spring portion is positioned inside, and the contact spring portion is inserted into the housing portion from a second direction opposite to the first direction and contacts the contact. When the contact spring portion is pressed and displaced toward the inner wall surface of the electronic component and makes contact, and the contact spring portion is excessively displaced due to the insertion of the mating contact, the electronic component contacts the inner wall surface to prevent excessive displacement. A connector having a protrusion protruding from an outer surface of the contact spring portion facing the inner wall surface of the electronic component. The connector according to claim 1, wherein the electronic component is made of a ferrite material.

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