JP3355479B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector, and more particularly to a connector for mounting a coaxial cable directly mounted and fixed on a printed wiring board to circuit wiring of the printed wiring board.

[0002]

2. Description of the Related Art Directly mounted and fixed on a printed wiring board,
Connect a coaxial cable to the circuit wiring on the printed wiring board.
Connector for simple coaxial cable
Straighten the end of the elastic contact held and fixed to the housing.
With a structure that connects to the circuit wiring of the printed wiring board
Many. Figure 1 shows a conventional general example of such a connector.5
And the state of being mounted on the printed wiring board.6Shown in
You. This connector comprises a receptacle 100 and a plug 2
The details of each are as follows. Les
The receptacle 100 is plugged into a predetermined site
The part 111 is plugged on the fixed side to the printed wiring board 500.
A hole 112 is formed of an insulating material.
Receptacle housings 110, each having one
One end has a pressure contact portion, and the other end has a printed wiring board 50.
And a connection terminal with the circuit wiring of 0.
The press contact is located in the plug insert.
Outside that is held and fixed to the receptacle housing 110.
Elastic contact 120 for inner conductor and elastic conductor for inner conductor
Tact 130 and pre-mounting of receptacle housing 110
Fixed leg portion 140 protruding from the component wiring board mounting surface.
It consists of.

Further, the plug 200 has a cable terminal holding portion 211 at a predetermined portion, a removal prevention projection 212 that enters the removal prevention hole 112 when the plug 200 is inserted into the receptacle 100, and a side opposite to the removal prevention projection 212 ( Insertion / removal operation projection 2 which protrudes upward to facilitate the operation of inserting / removing the plug 200 from / to the receptacle 100.
13 are provided, and the plug housings 210 formed of an insulating material are respectively connected to the outer conductor 610 and the inner conductor 620 (center conductor) of the terminal of the coaxial cable 600 so as to be arranged and held in the cable terminal holder 211. Outer conductor contact 220 and inner conductor contact 2
30 and the plug insertion portion 11 of the receptacle 100.
1, the contact and contact of the external conductor 220 come into press contact with the elastic contact 120 of the internal conductor, and the contact 230 for internal conductor presses with the elastic contact 130 of the internal conductor.

[0004] The receptacle 100 is a printed wiring board 5.
The fixing leg 14 is attached to the mounting hole provided in the substrate 510
0 is inserted and fixed to the printed wiring board 500, and the connection terminal portions at the other ends of the elastic contacts 120 for the external conductor and the elastic contacts 130 for the internal conductor (FIG. 5 , FIG.
In FIG. 6 , symbols, names, and the like are omitted (700) by soldering to the circuit wiring 520 (the elastic contact 120 for the external conductor is the ground wiring 521 therein) of the printed wiring board 500.

[0005] The plug insertion portion 111 of the receptacle 100
When the plug 200 having the coaxial cable attached thereto is inserted, the elastic contact 1 for the outer conductor of the receptacle 100 is inserted.
The pressurized contact portion at one end of 20 (symbols, names, etc. are omitted in FIGS. 5 and 6 ) is the external conductor contact 22 of the plug 200.
0 and makes elastic contact with the inner conductor 130
At the same time as pressurized elastic contact with the pressurized contact portion (symbol, name, etc. not shown) of the internal conductor contact 230,
00 prevents the plug 200 from slipping out of the receptacle 100 into the slip-out prevention hole 112 of the receptacle 100. Plug 2
The insertion / extraction operation projection 213 of the plug 200 reduces the force applied to the coaxial cable 600 when the plug is inserted / extracted, and facilitates the release of the lock between the exit prevention hole 112 and the exit prevention projection 212. Facilitates insertion and extraction of

[0006]

The conventional connector described above is directly mounted and fixed to the printed wiring board 500, and the ends of the elastic contacts (120, 130) are directly connected to the circuit wiring 520 (521) of the printed wiring board 500. ), There is no means to protect electrical and electromagnetic noise at the connection between the cable and printed wiring board. Contact (120, 13
0) and the like, these elastic contacts are liable to be deformed by an external force or short-circuit accidents are apt to occur.
2, 212) is only one place on the side of attachment to the printed wiring board 500, so when an external force is applied to the plug 200, the lock of the escape prevention means (112, 212) is released, and the plug 200 comes out of the receptacle 100. There is a problem.

An object of the present invention is to provide a connector capable of reducing the influence of electric and electromagnetic noise and preventing deformation or short circuit accident due to external force in view of the above-mentioned problems of the prior art. Another object of the present invention is to provide a connector in which a plug is more difficult to come out of a receptacle.

[0008]

A connector according to the present invention is a connector directly mounted on a printed wiring board, and has the following features to achieve the above object. (B) a plug insertion portion is formed at a predetermined site,
And a receptacle housing made of an insulating material having a plug escape preventing hole on the fixed side to the printed wiring board, each having a pressure contact portion at one end and a circuit wiring of the printed wiring board at the other end. An external conductor elastic contact and an internal conductor elastic contact which are integrally formed of a conductive material with connection terminals, and wherein the pressure contact portion is disposed in the plug insertion portion and held and fixed to the receptacle housing, Holding and fixing directly to the printed wiring board,
Receptacle to be connected (b) A cable terminal holding portion is formed at a predetermined portion, and a projection for preventing the plug from being inserted into the hole for preventing the plug from being inserted when inserted into the receptacle, and a side opposite to the projection for preventing the disconnection. And a plug housing made of an insulating material having a projection for insertion / removal operation facilitating insertion / removal operation to / from the receptacle. An external conductor contact and an internal conductor contact that are arranged and held in the receptacle.When the external conductor contact is inserted into the plug insertion portion of the receptacle, the external conductor contact is the external conductor elastic contact, and the internal conductor contact is A plug which comes into pressure contact with the internal conductor elastic contact; The plug is formed of a conductive material or a magnetic material so as to cover the plug inserted into the receptacle, and when the plug is inserted into the receptacle, the plug insertion / removal operation projection is inserted to prevent the plug from coming out. previous operation projection insertion hole that is
Includes a top plate that has been drilled at the end, and
In the area where it was set
When the bulge is pushed in, the top plate warps and the operation
Separate the projection insertion hole from the plug insertion / extraction operation projection.
When warping is eliminated, the upward
Return to the blindness and insert the operation protrusion insertion hole into the operation protrusion insertion hole.
A shielding plate, which is provided with a warp spring portion for allowing intrusion, and is held and fixed to the printed wiring board and connected to the ground wiring.

[0009]

[0010]

Embodiment of the embodiment of the present invention, in addition to the conventional receptacle and plug, these receptacles and plugs are formed of a conductive material or magnetic material so as to cover the (inserted into the receptacle) printed circuit held fixed to the plate, and a shielding plate is provided to be connected to the ground line, the upper plate of the shield plate, when the plug is inserted into the receptacle, the operation projection insertion hole insertion operating projection of the plug enters, In normal times, swell upward
When this bulge is pushed in, the top plate warps and
Release the insertion hole from the projection for insertion / removal operation.
And a recoil spring portion that returns to its original state when the recoil is eliminated.
It has a configuration . With such a structure and configuration, the shield for electrically and electromagnetically shields the elastic contacts for the outer conductor and the inner conductor of the receptacle, and the contacts for the outer conductor and the inner conductor of the plug with the shield plate. effect occurs, electrical, it is possible to reduce the influence of electromagnetic noise, also it is possible to prevent deformation or short circuit of the contact such as caused by an external force, in addition to the existing escape preventing means, exit the The locking projections that protrude to the opposite side from the prevention projections can be locked to prevent the plug from coming out.
Even when an external force is applied to the plug, on the plug from the receptacle is less likely even escape, operation projection insertion hole
Release the lock between the and the protrusion for insertion / removal with one fingertip.
Come to come.

[0011]

[0012]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional side view of a first embodiment of the present invention before a plug is inserted in a printed wiring board mounted state, FIG. 2 is a cross-sectional side view after a plug is inserted, and FIGS. It is the figure seen from each direction of the shielding plate of FIG. This embodiment differs from the conventional connector consisting of the receptacle 100 and the plug 200 in addition to the receptacle 100 and the plug 2.
00 (previously inserted into the receptacle 100) is formed of a conductive material or a magnetic material, is held and fixed to the printed wiring board 500, and is connected to the ground wiring 521 (one of the circuit wirings 520). 300 is provided in the configuration and structure.
The plug 200 is attached to the upper surface plate 310 of the receptacle 10.
0, the insertion / removal operation protrusion 213 of the plug 200
An operation protrusion insertion hole 311 enters, in its central portion, a flat
It always swells upwards and pushes this swelling
When the top plate 310 warps, the operation projection insertion hole 311 is inserted.
The plug 200 is separated from the insertion / extraction operation protrusion 213 and is warped.
A return spring portion 312 that returns to normal when the return is eliminated,
Is provided, and is fixed to the printed wiring board 500;
A fixed leg 330 that also serves as a connection to the ground wiring 521 is provided.

The plug 2 having the coaxial cable 600 mounted thereon
00 is inserted into the plug insertion portion 111 of the receptacle 100, the pressing contact portion (symbol, name, etc. not shown) of the external conductor elastic contact 120 of the receptacle 100 becomes the external conductor contact 22 of the plug 200, as in the conventional example.
0, the pressure contact portion (symbol, name, etc. not shown) of the internal conductor elastic contact 130 is
At the same time that the plug 200 comes into elastic contact with the plug 200, the projection 212 of the plug 200 comes out of the hole 112 of the receptacle 100, and the insertion projection 213 of the plug 200 goes into the operation projection insertion hole 311 of the shielding plate 300. Is prevented from falling out of the receptacle 100.

In this embodiment, the receptacle 100
The elastic contact 120 for the external conductor and the elastic contact 130 for the internal conductor, and the contact 220 for the external conductor and the contact 230 for the internal conductor of the plug 200 are covered with the shielding plate 300, so that electrical and electromagnetic noises to these contacts are generated. In addition, these contacts can be protected from external force and their deformation can be eliminated, and a short circuit accident can be prevented. Further, it is only necessary to determine whether the shielding plate 300 is made of a conductive material or a magnetic material, depending on whether the noise to be reduced is electrical or electromagnetic.

When the plug is inserted, the plug is prevented from slipping out by locking the slip-out preventing hole 112 and the slip-out preventing projection 212, and at the same time, the plug-in / pull-out operation projection 21 of the plug 200 is projected to the side opposite to the slip-out preventing projection 212.
3 and the operation protrusion insertion hole 311 of the shielding plate 300 is locked to prevent the plug from coming out, so that even when an external force is applied to the plug 200, the receptacle 100
The plug 200 can be more securely prevented from coming out of the plug. When the plug 200 is detached from the receptacle 100, the upper plate 310 warps.
Pressing the spring portion 312 with a fingertip, the tip of that is pushed upward, the operation projection inserted insertion operation projection 213 holes 311
The lock between can be released with one fingertip,
The insertion / extraction operation projection 213 is pulled out from the operation projection insertion hole 311, and the insertion / extraction operation projection 213 is pinched to hold the receptacle 100.
Since it is only necessary to pull out the cable, the operability of insertion and removal is improved.

[0016]

FIG. 4 (a) ~ (c) is a diagram of the shielding plate viewed from the direction of a second embodiment of the present invention. The shield 300 a of this embodiment is provided with a shielding plate 340 covering the entire side surface of the receptacle 100 and plug 200, further to another aspect of the shielding plate 340 and shielding plate 300 a, increase its strength Reinforcement rib 341 is formed. In the shield plate 300 of the first embodiment described above, the short reinforcing side plate 320 is provided on the side surface, and is not structured to cover the entire side surface of the receptacle 100 and the plug 200. Although an electrical and electromagnetic shielding effect can be obtained even with this, if the entire side surface is covered as in the second embodiment, the shielding effect is further improved, and the influence of electrical and electromagnetic noise is further reduced. It can be further reduced.
Note that the reinforcing rib 341 may have a structure in which the center portion is punched .

[0018]

As described above, the present invention relates to a conventional laser.
In addition to receptacles and plugs, these receptacles and
Made of conductive or magnetic material to cover the plug
And fixed to the printed wiring board, and
Provide a shield plate that connects to the wire, and this shield plateTop plate
When the plug is inserted into the receptacle,
Operation projection insertion hole into which the projection for operationAnd normal
Is bulging upwards, and when you push it in, the top plate
A warp spring that can warp,To have a structure with
To the receptacle and plug contacts.
At the same time as reducing the effects of electrical and electromagnetic noise
In addition, deformation of contacts etc. due to external force and occurrence of short circuit
Can be stopped, and the existing
Crab, insertion and removal protruding on the opposite side of the protrusion
Since the operation projection is locked, external force is applied to the plug.
Also makes it difficult for the plug to come out of the receptacle
Has the effectTo, operationOperation hole for insertion and removal operation
The effect of unlocking between the projection with one fingertip
There is.

[Brief description of the drawings]

FIG. 1 is a cross-sectional side view of a first embodiment of the present invention in a printed wiring board mounted state before plug insertion.

FIG. 2 is a cross-sectional side view of the embodiment shown in FIG. 1 after plug insertion.

FIG. 3 is a view of the shield plate of the embodiment shown in FIG. 1 as viewed from each direction.

FIG. 4 is a view of a shield plate according to a second embodiment of the present invention as viewed from each direction.

FIG. 5 is a cross-sectional side view of a conventional connector before plug insertion,
3 is a view as viewed from the direction of the arrows A and B.

FIG. 6 shows a printed wiring board mounted on the connector shown in FIG . 5;
It is a sectional side view after plug insertion in a state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 100 Receptacle 110 Receptacle housing 111 Plug insertion part 112 Pull-out prevention hole 120 Elastic contact for external conductor 130 Elastic contact for internal conductor 200 Plug 210 Plug housing 211 Cable terminal holding part 212 Pull-out prevention projection 213 Insertion / extraction operation projection 220 Internal contact for external conductor 230 Conductor contacts 300, 300a Shield plate 310, 310a Top plate 311 Operation projection insertion hole 312 Warp spring portion 320 Reinforcement side plate 330 Fixed leg 340 Shield side plate 341 Reinforcement rib 500 Printed wiring board 510 Board 520 Circuit wiring 521 Ground wiring 600 Coaxial cable 610 outer conductor 620 inner conductor

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 13/648-13/658 H01R 24/02

Claims (1)

(57) [Claims] 1. A connector directly mounted on a printed wiring board, the connector having the following components. (B) a plug insertion portion is formed at a predetermined site,
And a receptacle housing made of an insulating material having a plug escape preventing hole on the fixed side to the printed wiring board, each having a pressure contact portion at one end and a circuit wiring of the printed wiring board at the other end. An external conductor elastic contact and an internal conductor elastic contact which are integrally formed of a conductive material with connection terminals, and wherein the pressure contact portion is disposed in the plug insertion portion and held and fixed to the receptacle housing, Holding and fixing directly to the printed wiring board,
Receptacle to be connected (b) A cable terminal holding portion is formed at a predetermined portion, and a projection for preventing the plug from being inserted into the hole for preventing the plug from being inserted when inserted into the receptacle, and a side opposite to the projection for preventing the disconnection. And a plug housing made of an insulating material having a projection for insertion / removal operation facilitating insertion / removal operation to / from the receptacle. An external conductor contact and an internal conductor contact that are arranged and held in the plug insertion portion of the receptacle, the external conductor contact is the external conductor elastic contact, and the internal conductor contact is A plug which comes into pressure contact with the internal conductor elastic contact; The plug is formed of a conductive material or a magnetic material so as to cover the plug inserted into the receptacle, and when the plug is inserted into the receptacle, the plug insertion / removal operation projection is inserted to prevent the plug from coming out. previous operation projection insertion hole that is
Includes a top plate that has been drilled at the end, and
In the area where it was set
When the bulge is pushed in, the top plate warps and the operation
Separate the projection insertion hole from the plug insertion / extraction operation projection.
When warping is eliminated, the upward
Return to the blindness and insert the operation protrusion insertion hole into the operation protrusion insertion hole.
A shielding plate , which is provided with a warp spring portion for allowing intrusion, and is held and fixed to the printed wiring board and connected to the ground wiring.