JP2541843Y2 - Multi-core coaxial connector for printed circuit board with power supply contact - 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 for a printed circuit board used for connecting two boards, and more particularly to a connector for connecting a signal and a power supply.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional connector of this type.
A plurality of pin contacts 13 extending in the insertion / removal direction, that is, the front-rear direction, are arranged in a housing 12 of the connector 11, and the connector 11 is mounted on the rear surface of the housing 12 in contact with a printed circuit board 14. The pin contacts 13 pass through the printed circuit board 14.

On the other hand, a connector 15 to be connected to the connector 11 is such that a housing 16 can be fitted into and removed from the housing 12, and contact housing holes 17 extending in the front-rear direction are formed in the housing 16. The socket contacts 18 are housed in the sockets 17 respectively. The arrangement of the socket contacts 18 is the pin contact 1
3 and the same sequence. Socket contact 18
The rear end of the housing 16 is led out from the back of the housing 16,
The terminal 19 is connected to the printed circuit board 21.

The printed board 14 is, for example, a back board provided along the back surface of the electronic device. The printed board 21 is movable, for example, vertically to the printed board 14 and is a package board on which various electronic components are mounted. In addition, the connector 15 is attached to one end of the printed circuit board 21 so as to protrude from the printed circuit board 21 so that the insertion direction of the connector 15 is parallel to the printed circuit board 21. Housing 1 in housing 12
6 is fitted and inserted, each pin contact 13 elastically fits into contact with the corresponding socket contact 18. Power is supplied as well as signals are transmitted / received to / from each part on the printed board 21 through the printed board 14. Therefore, a part of the pin contact 13 is provided with a power supply 13S,
Used for ground 13G.

[0005]

In a conventional board connector, a pin contact and a socket contact are used, and signal transmission / reception and power supply are mixed. Therefore, noise superimposed on the power supply contact is generated. However, there is a drawback that it is easily guided to the signal contact and is weak against noise. In addition,
It is conceivable to strongly noise using a coaxial contact in place of the socket contact, but because the thin coaxial contact has a small current capacity, will use the coaxial contacts Therefore plural in parallel with one feeding Therefore, the number of signal contacts decreases accordingly.

[0006]

According to this invention, the first aspect is as follows.
The connector is to be inserted into the base and the second connector.
Having an insertion portion projecting from the center of the base of the
In the unit, a plurality of signal pins extended in the insertion and removal direction,
Each is housed in a conductive tubular body and arranged and housed.
It is extended in the insertion and removal direction on both sides of the part, one end of which
Power supply pin contact protruding forward from the front of the insertion section
Are provided in plurality . The second connector is on the front
An opening into which the above-mentioned insertion portion is to be inserted is formed at the center.
In the opening, each of the signal pins and the conductive tubular body
A plurality of coaxes extended in the above insertion / removal direction to be coupled
The contacts are arranged and accommodated in the same arrangement as the signal pins.
Each of the above power supply pin contacts is located on both sides of the front of the connector.
Multiple feed contact holes to be inserted
And the front end of each of the power supply contact holes is
With the insertion opening enlarged as the inner peripheral surface approaches the front
Power supply pin contact in each power supply contact hole.
Power socket contacts to be connected to
Be killed. The first connector and the second connector sequentially supply power
Pin contact is inserted into the power contact hole
Part is inserted into the opening and the coaxial contact is
Insert the signal pin into the center hole of the coaxial contact.
And combined .

[0007]

1 and 2 show an embodiment of the present invention. In FIG. 1, the first connector 22 is the first printed circuit board 14.
Furthermore, in this example, it is attached with the back surface facing. The housing 23 of the first connector 22 has an insertion portion 23a that protrudes forward Hisashi Naka portion, the base portion from the left and right rear portion of the insertion portion 23a is projected protrusion 23b, as 23c. Although not shown in FIG. 1, one end of a plurality of signal pins 24 extending in the front-rear direction (insertion / removal direction) is housed in two rows in the insertion portion 23a, and the other ends of the signal pins 24 are connected to the housing. 23 protrudes from the back surface. Base projection 23b,
To 23 c, a plurality of power supply pin contacts 25 extending in the longitudinal direction are inserted and fixed, respectively. The front end of the power supply pin contact 25 projects forward from the front surface of the insertion portion 23a. In this example, two power supply pin contacts 25 are provided on the protruding portions 23b and 23c, respectively, so as to be located on an extension of the arrangement of the signal pins 24. It is parallel.

The second connector 26 is connected to the second printed circuit board 21.
Attached to, at its housing 27 is an elongated rectangular parallelepiped, the front center portion, the insertion portion 23a is formed an elongated rectangular opening 28 to be inserted fitting, feeding pin contacts 25 on each side of the front portion are respectively inserted A power supply contact hole 29 to be formed is formed. One end of the plurality of coaxial contacts 31 extending in the longitudinal direction into the opening 28 are arranged and contained in the same sequence as the signal pin 24.

FIG. 2 shows the first connector 22 and the second connector 2.
FIG. 3 shows a cross section of a portion of the signal pin 24 and the coaxial contact 31 in a state where the power supply pin contact 2 is connected to the power supply pin contact 2.
The cross section of each of the five parts is shown. Coaxial contact 31 is cylindrical
Center conductor 31a disposed in the shape of the insulator and the insulator
The outer conductor 31b is disposed around the center conductor 31b.
The tip of a is a socket contact and insulated there
It is the signal pin 24 through the body end center hole of the insertion, resiliently contact touch. With the signal pin 24 at the center, the conductive tubular body 32 is held in the insertion portion 23a, the coaxial contact 31 is inserted into the tubular body 32, and the outer conductor 31b is elastically contacted. In this example, as shown in FIG.
In this case, the support plate 33 is in contact with the surface of the printed circuit board 14 opposite to the first connector 22, and the signal pins 24 are inserted and held in the support plate 33. The signal pins 24 may be fixed directly to the first printed circuit board 14 or may be fixed to the housing 23 itself. In this example, the housing 23 closes the back surface of the insertion portion 23a with the back cover 23d. .

As shown in FIG. 3, a power supply socket contact 33 is provided in a power supply contact hole 29 of the second connector 26.
And the power supply pin contact 25 is elastically inserted into the power supply socket contact 33 when the first and second connectors 22 and 26 are connected . Contact portion between the feeding conductive pin contacts 25 and the power supply socket contact 33
Are moved back and forth by upper and lower contacts on both sides of the housing 27, so that the force required for insertion and coupling is small . Forward end of the sheet conductive contacts hole 29, the inner peripheral surface is enlarged toward the front, feed pin contacts 25 refers included port 3 as inserted is liable to
In order to correctly guide the power supply pin contact 25 to the power supply socket contact 33, the front portion of the power supply contact hole 29 has a cross section slightly larger than the cross section of the power supply pin contact 25, and guides the power supply pin contact 25. Guide portion 29a.

The center conductor 31a, the outer conductor 31b, and the power supply socket contact 33 of the coaxial contact 31 are each bent at substantially right angles in the housing 27, and their rear ends are respectively connected from one side of the housing 27 to one side thereof. is led to the outside through the formed positioning holes to Ru is a terminal. Because these pins are precisely aligned, the second
It can be easily connected to the printed circuit board 21.

[0012]

As described above, according to the present invention, signals are transmitted and received by the coaxial contact 31, so that the signal is hardly affected by noise from the power supply contact. Further, since the coaxial contact is used, high-speed signal transmission is possible.
Moreover rather than the coaxial contact to the power supply, and the socket contacts 33 separate simply pin contacts 25 is used, it is possible to use a thicker compared to the coaxial contact, even one pair of contacts in pairs to one feeding Ru can be to supply the relatively large current.

[0013] Also, at the time of connection, firstly, on both sides of the housing.
Digit feed pin contact 25 by mouth 34 narrowing refers is
Invitation is incorporated, is inserted into the feed contact hole 29 is guided position <br/>-decided Me, then insert portion 23a is inserted draft opening 28
Is an inner, coaxial contact 31 then is in the conductive cylindrical body 32
The insertion is guided, and then the signal pin 24 is moved to the coaxial contact 31.
To be inserted into the center hole of
Therefore, the fitting accuracy of the connector can be improved.
Therefore , the large number of signal pins 24 and the large number of coaxial contacts 31 can be easily and surely fitted without, for example, visually checking the fitted portion .

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a signal pin portion in a connected state of first and second connectors.

FIG. 3 is a cross-sectional view of a power supply pin contact portion in a coupled state of the first and second connectors.

FIG. 4 is a sectional view showing a conventional connector.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Takao Suzuki 1-21-6 Dogenzaka, Shibuya-ku, Tokyo Inside Japan Aviation Electronics Industry Co., Ltd. (72) Goro Haga 1-21-6 Dogenzaka, Shibuya-ku, Tokyo No. Japan Aviation Electronics Industry Co., Ltd. (56) References JP-A-2-165584 (JP, A) JP-A-63-231891 (JP, A) JP-A-49-67188 (JP, A) 57-41279 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A connector for connecting a first connector attached to a first printed board and a second connector attached to a second printed board, wherein the first connector is inserted into the base and the second connector.
It is to have an insertion portion that has issued the central portion or al impact of its base, its insertion portion, a plurality of signal <br/> pin which is extended in the insertion and removal direction, respectively conductive tubular body is housed are arranged and contained in, on both sides of the upper SL base, is extended in the upper Symbol insertion and removal direction, feeding one end of which projects forward from the front surface of the insertion portion Pi
Down contact is provided with a plurality respectively, to the front center portion of the second connector, the insertion portion is formed an opening to be inserted, into the opening, each signal pin and the conductive tubular body and binding It is a plurality of coaxial configuration <br/> Takt which is extended to the insertion and removal direction is arranged and contained in the same sequence and the signal pins, on the front sides of the second connector, each feed pin contacts A plurality of power supply contact holes to be inserted are formed, and the front end of each of the power supply contact holes has an inner peripheral surface facing forward.
Is a enlarged pointing inclusive opening toward the surface, to the respective feed contact for hole, the feeding socket con Takt be combined with the feeding pin contacts each
Provided al is sequentially and the first and second connectors, the feeding pin
Contact is inserted into the power supply contact hole,
The insertion part is inserted into the opening, and the coaxial contact is
The signal pin is inserted into the conductive tubular body, and the signal pin is coaxial.
It is inserted into the center hole of the contact with Ru coupled, multi-fiber coaxial connector for printed circuit board with power supply contacts.