JP4742337B2 - connector - Google Patents

Description

  The present invention relates to a connector into which contacts are inserted in the front-rear direction.

  A connector as shown in FIGS. 2 to 4 is known as a connector into which contacts are inserted in the front-rear direction of this type, and this connector 1 is held by a plurality of contacts 2, 2. .., And contacts 2, 2... Are inserted from the front side of the housing 3 to attach the contacts 2, 2.

  The contact 2 includes a flat plate-like fixed piece portion 4 and a contact portion that is bent upward from one end portion of the fixed piece portion 4 and exposed to the front surface portion of the housing 3 and contacts a mating terminal such as a pin-type terminal. 5, the attachment piece 6 bent from the tip of the contact portion 5, the bent portion 7 bent downward from the other end of the fixed piece 4, and bent backward from the tip of the bent portion 7, The terminal portion 8 is in contact with the substrate, and is formed by punching a conductive material into a predetermined shape and bending it.

  The fixed piece portion 4, the contact portion 5, and the attachment piece portion 6 are formed to have substantially the same width, and protrusions for retaining are formed on both side edges of the fixed piece portion 4.

  On the other hand, the bent portion 7 and the terminal portion 8 are formed narrower than the fixed piece portion 4.

  Further, the distal end side of the terminal portion 8 is supported by the carrier 9 so that the insertion work of the plurality of contacts 2, 2.

  The housing 3 penetrates in the front-rear direction, is disposed below the contact insertion holes 10, 10... Into which the fixed pieces 4 of the contacts 2 are inserted, and is formed continuously with the contact insertion holes 10. The contact exposed groove 11 is formed of an insulating material such as a synthetic resin material.

  A press-fitting hole 12 into which the mounting piece 6 is press-fitted in parallel with the contact insertion hole 10 is formed on the front side of the housing 3.

  The connector 1 also includes a shield member 13 formed of a conductive plate material in a cylindrical shape composed of upper, lower, left and right side plates 14-17, and the periphery of the housing 3, that is, the upper, lower, left, and right surfaces of the housing 3 is the shield member. And 13 upper, lower, left and right side plates 14 to 17.

  In the connector 1 configured as described above, as shown in FIG. 4, the plurality of contacts 2, 2... Supported by the carrier 9 are inserted into the housing 3 from the front side, that is, the fixed piece 4 is inserted from the front side. The contacts 2, 2... Are attached to the housing 3 by being inserted into the contact insertion holes 10. At this time, the contact exposed grooves 11 are provided, so that the bent portion 7 is passed from the front side to the rear side, and the housing 3 It can be arranged at the rear, and the insertion operation can be performed even when the contact 2 is supported by the carrier 9.

  However, in the conventional technology as described above, the contact exposed groove is provided, so that the fixed piece portion is exposed from the contact exposed groove on the lower surface of the housing, and water droplets adhere to the exposed portion due to condensation or the like. There was a problem that leakage current was generated from that portion.

  Further, when the outer periphery of the housing is surrounded by a shield member made of a conductive material, insulation between the shield member and the contact exposed from the contact exposure groove is not made, and there is a risk of short circuit.

  On the other hand, it is possible to eliminate the contact exposure groove by molding the housing with the contact inserted in the mold (insert molding), but this complicates the operation and increases the manufacturing cost. There was a problem.

  SUMMARY OF THE INVENTION In view of the above-described problems of the prior art, it is an object of the present invention to provide a connector that can suitably prevent leakage current, short circuit, and the like and can be manufactured at low cost.

In order to solve the conventional problems as described above and achieve the intended object, the invention according to claim 1 is arranged in a contact insertion hole penetrating in the front-rear direction and below the contact insertion hole, A housing having a contact insertion hole and a continuous contact exposed groove;
A flat plate-like fixed piece inserted into the contact insertion hole from the front side, and a contact part that is bent upward from one end of the fixed piece and is exposed to the front surface of the housing and contacts the mating terminal And a contact having a terminal portion integrally formed through a bent portion bent downward from the other end portion of the fixed piece portion,
The bent part of the contact is disposed in the rear part of the housing by passing the inside of the contact exposed groove of the housing from the front side of the housing to the rear side, and the fixed piece part is exposed to the lower surface of the housing from the contact exposed groove. In the connector,
A shield member covering the periphery of the housing and having a surface facing the contact exposure groove;
An insulating coating is provided on a surface facing the shield member through the contact exposure groove of the fixed piece .

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the shield member is formed of a conductive plate material in a cylindrical shape including upper, lower, left and right side plates, and the upper, lower, left and right side plates surround the housing. And an insulating coating is applied to the inner surface of the lower plate of the shield member .

  The invention according to claim 3 is characterized in that, in addition to the configuration of claim 1 or 2, the insulating coating is a masking tape used in the plating process.

  According to a fourth aspect of the invention, in addition to the configuration of the first or second aspect, the insulating coating is formed by coating a synthetic resin material.

  The connector according to the present invention includes a housing having a contact insertion hole penetrating in the front-rear direction, a contact exposure groove disposed below the contact insertion hole and continuous with the contact insertion hole, and a front surface in the contact insertion hole. A flat fixed piece inserted from the side, a contact portion that is bent upward from one end of the fixed piece, exposed to the front surface of the housing, and contacts the mating terminal; and the fixed piece And a contact having a terminal portion integrally formed through a bent portion bent downward from the other end portion of the other end portion of the housing, and the bent portion can be disposed in the rear portion of the housing through the contact exposure groove. In the connector in which the fixed piece portion is exposed to the lower surface of the housing from the groove, the contact is on the surface exposed from the contact exposed groove of the fixed piece portion By applying the edge coating, even if water droplets adhere to the portion exposed from the contact exposed groove of the fixed piece due to condensation or the like, it is insulated by the insulating coating, so that leakage current or the like can be suitably prevented. . In addition, when the terminal portion is fixed to the substrate with solder, the insulation coating can prevent the solder from rising, so that the insulation is excellent and a high withstand voltage can be obtained.

  By forming a conductive plate material in a cylindrical shape composed of upper, lower, left and right side plates, including a shield member that covers the periphery of the housing with the upper, lower, left, and right side plates, and applying an insulating coating to the inner surface of the lower plate of the shield member Insulation between the contact and the shield member can be ensured.

  Insulation coating is a masking tape used during plating, reducing the amount of precious metal used for plating, reducing material costs, and providing insulation coating without separate coating operations Can reduce the cost.

  Since the insulating coating is formed by coating a synthetic resin material, a stable insulating coating can be formed.

  Next, the connector according to the present invention will be described. In addition, the same code | symbol is attached | subjected to the part same as the above-mentioned prior art example.

  As shown in FIG. 1, the connector 1 includes a plurality of contacts 2, 2... And a housing 3 in which the contacts 2, 2... Are held, and the contacts 2, 2. It is designed to be attached.

  The contact 2 has a flat plate-like fixed piece portion 4 and a contact portion 5 that is bent upward from one end portion of the fixed piece portion 4 and exposed to the front surface portion of the housing 3 and contacts a mating terminal such as a probe terminal. And an attachment piece 6 bent from the tip of the contact portion 5, a bent portion 7 bent downward from the other end of the fixed piece 4, and a bent portion 7 bent from the tip of the bent portion 7, It is provided with a terminal portion 8 that comes into contact with a constituent substrate and the like, and is formed by punching a conductive material into a predetermined shape and bending it.

  The fixed piece portion 4, the contact portion 5, and the attachment piece portion 6 are formed to have substantially the same width, and protrusions for retaining are formed on both side edges of the fixed piece portion 4.

  On the other hand, the bent portion 7 and the terminal portion 8 are formed narrower than the fixed piece portion 4.

  Further, the distal end side of the terminal portion 8 is supported by the carrier 9 so that the insertion work of the plurality of contacts 2, 2.

The contact 2 faces the lower surface of the fixed piece 4, that is, the surface exposed to the lower surface of the housing 3 through the contact exposed groove 11 , in other words, the inner surface of a shield member to be described later through the contact exposed groove 11. An insulating coating 20 is applied to the surface .

  A masking tape used for plating is used for the insulating coating 20.

  In order to form such a contact 2, first, a conductive plate material is punched into a predetermined shape, and a masking tape 20 is attached to a position corresponding to the fixed piece 4.

  Next, press work is performed to form the attachment piece 6, the contact portion 5, the fixed piece 4, the bent portion 7, and the terminal portion 8.

  Then, plating is applied to necessary portions excluding the masked portion.

  By doing in this way, the masked part forms insulation coating, On the other hand, the usage-amount of expensive plating material can be suppressed and reduction of material cost can be aimed at.

  As in the conventional example shown in FIG. 2, the housing 3 penetrates in the front-rear direction, and is disposed below the contact insertion holes 10, 10. The contact insertion groove 10 and the contact exposed groove 11 formed continuously are provided, and are formed of an insulating material such as a synthetic resin material.

  Further, a press-fitting hole 12 into which the mounting piece 6 is press-fitted in parallel with the contact insertion hole 10 is formed on the front side of the housing 3.

  In addition, a shield member 13 made of a conductive material such as a stainless steel covering the periphery of the housing 3 is provided on the outer periphery of the housing 3.

  The shield member 13 is formed in a rectangular tube shape including an upper plate 15, a lower plate 14, and left and right side plates 16, 17 by bending a conductive plate material. An insulating coating 21 is applied to the inner surface of the lower plate 14, that is, the surface facing the contact exposed groove 11 of the shield member 13.

  The insulation coating 21 is applied by sticking a masking tape, as in the case of the above-described insulation coating, so that insulation between the shield member 13 and the contact 2 is ensured.

In the connector 1 thus configured, a plurality of contacts 2, 2... Supported by the carrier 9 are inserted into the housing 3 from the front side of the housing 3, that is, the fixed piece 4 is inserted from the front side. The contacts 2, 2... Are attached to the housing 3 by being inserted into the holes 10. At this time, by providing the contact exposure grooves 11, the bent portion 7 is passed from the front side to the rear side, that is, the contact exposure. The inside of the groove 11 can be passed from the front side of the housing to the rear side and can be arranged at the rear part of the housing 3, so that the insertion work can be performed even when the contacts 2, 2. Can be done.

  On the other hand, the fixed piece 4 of the contact 2 exposed from the contact exposed groove 11 to the lower surface of the housing is insulated by applying the insulating coating 20, so that current leaks even if water droplets adhere due to condensation or the like. This can be prevented.

  Further, when the terminal portion is fixed to the substrate by soldering, the insulating coating 20 can prevent solder from rising.

  In the above-described embodiment, the example in which the masking tape used in the plating process is used for the insulating coating has been described. However, the insulating coating is formed by coating the back surface of the fixed piece 4 with a synthetic resin material. Also good.

It is sectional drawing which shows the connector which concerns on this invention. It is a front view which shows the conventional connector. It is an AA arrow directional view in FIG. It is a perspective view which shows the state of the attachment process of a contact same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connector 2 Contact 3 Housing 4 Fixed piece part 5 Contact part 6 Mounting piece part 7 Bending part 8 Terminal part 9 Carrier 10 Contact insertion hole 11 Contact exposure groove 12 Press-fit hole 13 Shield member 14 Upper plate 15 Lower plate 16 Left plate 17 Right side Board 20, 21 Insulation coating

Claims (4)

A housing having a contact insertion hole penetrating in the front-rear direction, a contact exposure groove disposed below the contact insertion hole, and continuous with the contact insertion hole;
A flat plate-like fixed piece inserted into the contact insertion hole from the front side, and a contact part that is bent upward from one end of the fixed piece and is exposed to the front surface of the housing and contacts the mating terminal And a contact having a terminal portion integrally formed through a bent portion bent downward from the other end portion of the fixed piece portion,
The bent part of the contact is disposed in the rear part of the housing by passing through the contact exposed groove of the housing from the front side of the housing to the rear side, and the fixed piece part is exposed to the lower surface of the housing from the contact exposed groove. In the connector,
A shield member covering the periphery of the housing and having a surface facing the contact exposure groove;
An insulating coating is applied to the surface facing the shield member through the contact exposure groove of the fixed piece . The shield member is formed of a conductive plate material in a cylindrical shape composed of upper , lower, left , and right side plates , covers the periphery of the housing with the upper, lower, left, and right side plates , and insulates the inner surface of the lower plate of the shield member. Item 10. The connector according to Item 1.   The connector according to claim 1 or 2, wherein the insulating coating is a masking tape used in the plating process.   The connector according to claim 1, wherein the insulating coating is formed by coating a synthetic resin material.

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