JP3316181B2 - PCB shield connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a shield connector for a board.

[0002]

2. Description of the Related Art FIG. 15 shows a board shield connector 100 disclosed in Japanese Utility Model Application Laid-Open No. 4-87186 (hereinafter, referred to as a connector).
It is referred to as “connector 100”. )showed that. The connector 100 is mounted on a printed circuit board 101 and used. The connector 100 includes a connector housing 105 and an outer conductor 104 made of a conductive member. Further, the connector housing 105 is provided with a lance 106 that elastically engages with the outer conductor 104. Further, the outer conductor 104 is provided with a terminal 103 that can be inserted into the through hole 102 opened in the printed board 101.

An outer conductor 104 is connected to a connector housing 105.
Then, the connector 100 is attached to the printed circuit board 101 by inserting the terminal 103 of the connector 100 into the through-hole 102 after the lance 106 is pushed in to prevent the connector 100 from being removed.

[0004]

Here, the connector housing 105 and the outer conductor 104 are prevented from coming off by a lance 106. However, an engagement margin for elastically engaging the outer conductor 104 is indispensable for the lance 106. Therefore, even when the outer conductor 104 is engaged with the connector housing 105, the outer conductor 10
4 slightly rattles back and forth in the assembling direction.
Then, when the connector 100 and the printed circuit board 101 are assembled with each other due to the play, the terminals 103 are not connected.
There is a problem that it is difficult to perform positioning between the semiconductor device and the through hole 102.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a shielded connector for a board which can be easily positioned when assembled to a board.

[0006]

According to a first aspect of the present invention, there is provided a shielded board connector for solving the above-mentioned problems.
An electric connector integrated by an inner conductor and a shield outer conductor and a dielectric made of an insulating material interposed therebetween is incorporated into a housing portion provided in a connector housing. The distal end of a portion that bends and protrudes from the rear of the connector housing is inserted into a through hole provided in the printed circuit board to make connection with the board side, and the outer conductor is press-fitted into the housing portion. by the positioning of the electrical connectors have been made with respect to the connector housing, the outer conductor
The press-fitting overhanging piece protrudes outward on the side of
On the other hand, on the side wall of the housing portion of the connector housing,
A guide groove capable of receiving the overhanging piece in a press-fit state is provided.
Vignetting wherein the are.

According to a second aspect of the present invention, an inner conductor and a shield
Dielectric consisting of outer conductor and insulating material interposed between them
The electrical connector integrated by the body
As well as the internal conductor
Out of the connector housing
Through hole with the tip of the protruding part provided on the printed circuit board
To the board side for connection to the board side.
The outer conductor corresponds to the housing portion.
And press-fitted into the connector housing.
Electrical connector is positioned and the outer conductor
On the side surface, the electric
A lance for preventing the air connector from coming off is formed .

According to a third aspect of the present invention, in the first aspect , the front edge of the overhanging piece is chamfered for guiding insertion into the guide groove. I do.

According to a fourth aspect of the present invention, in the first or third aspect, the side surface of the outer conductor is elastically engaged with a side wall in the housing portion to prevent the electric connector from coming off. A lance is formed.

[0010]

According to the first aspect of the present invention, the electric connector is positioned with respect to the connector housing by press-fitting the outer conductor into the housing portion. For this reason, after assembling, rattling between the connector housing and the outer conductor is regulated. Thus, by positioning the connector housing at a predetermined position on the printed circuit board, positioning with respect to the through hole can be performed. Also, the outer conductor is
Then, the overhanging piece of the outer conductor presses into the guide groove of the accommodation section.
Accepted in a state.

According to the second and fourth aspects of the present invention, the electric connector
When the lance is received in the receiving part, the lance
It is elastically engaged with the side wall in the housing. Conventional resin lance
The engagement force is strengthened as compared with.

According to the third aspect of the present invention, since the front end of the overhanging piece is chamfered, the press-fitting operation into the guide groove can be started smoothly.

[0013]

[0014]

Next, an embodiment of the present invention will be described in detail with reference to FIGS. FIG.
5 shows a state before the board shield connector 1 is assembled. The board shield connector 1 is used, for example, for transmitting a high-frequency signal. The board shield connector 1 includes a connector housing 2,
An outer conductor 3, a dielectric 4, and an inner conductor 5 are provided (hereinafter, the one in which the outer conductor 3, the dielectric 4, and the inner conductor 5 are assembled integrally is referred to as an "electric connector 6"). ). A high-frequency signal is transmitted to the inner conductor 5, and the outer conductor 3 electromagnetically shields the inner conductor 5 while covering the periphery thereof.

The mating connector 18 is provided with an outer conductor 18A and an inner conductor 18B which can be connected to the outer conductor 3 and the inner conductor 5 of the board shield connector 1 (see FIG. 14).

The inner conductor 5 is formed in a substantially L-shape by a conductive member, and transmits and receives an electric signal by being connected to the mating connector 18. The inner conductor 5 includes a connection tab 5A extending in the front-rear direction and a board assembly tab 5B extending in the vertical direction. One end of each of the tabs 5A, 5B is connected to the connection portion 5A.
By being connected by C, the whole is substantially L-shaped.
The front end of the connection tab 5A is connected to an inner conductor 18B provided on the mating connector 18. At a central portion of the connection tab 5A or at a position slightly closer to the connection portion 5C, the width is smaller than the width of the connection portion 5C, and extends from there to an equal width to the tip. Further, a guide portion 5D which is chamfered and tapered is provided at the tip of the connection tab 5A. The lower end of the board assembly tab 5B is inserted into a through hole 15A provided in the printed board 15. Board assembly tab 5B
The center is slightly narrower at the lower end,
It extends from there to the tip with the same width. Further, a tapered guide portion 5E is formed at the tip of the board assembly tab 5B.

Next, referring to FIG. 2 to FIG.
Will be described. The dielectric 4 is formed of an insulating material and is assembled between the inner conductor 5 and the outer conductor 3 to make the two conductors 3 and 5 insulated. The dielectric 4 is equal to or slightly smaller than the inner diameter of a housing 7 (described later) provided on the outer conductor 3. At the center of the dielectric 4, an insertion hole 4B penetrating back and forth is provided. The insertion hole 4B has a connection tab 5A of the inner conductor 5 formed therein.
Is inserted. At the center of the rear surface of the dielectric 4, an assembling groove 4A is provided which extends from the insertion hole 4B to the lower end. The board mounting tab 5B of the inner conductor 5 is mounted in the mounting groove 4A. The front and rear and up and down lengths of the dielectric 4 correspond to the connection tab 5A of the inner conductor 5 and the board assembly tab 5B, respectively.
When the inner conductor 5 is assembled to the dielectric 4, the tips of both tabs 5 </ b> A and 5 </ b> B of the inner conductor 5 project from the dielectric 4. At the center of the upper surface of the dielectric 4, a groove 27 continuous in the front-rear direction is recessed, and near the center of the groove 27, an engagement projection 28 is projected. A guide surface 28 </ b> A is formed at a front end portion of the engagement protrusion 28.

Next, the outer conductor 3 will be described with reference to FIGS. Note that the outer conductor 3 shown here is before final assembly, and a folded piece 20 before being folded remains extended at an upper portion of a rear end.
The folded piece 20 is folded downward after the dielectric 4 and the inner conductor 5 are assembled inside the outer conductor 3.

The outer conductor 3 is formed in a hollow shape by bending a conductive plate material, and a dielectric 4 can be accommodated therein. The outer conductor 3 is formed in a substantially L-shaped side cross section, and has a fitting portion 3A extending horizontally and a board assembly portion 3B extending downward from the rear of the fitting portion 3A. And The outer conductor 18A of the mating connector 18 fits into the opening at the tip of the fitting portion 3A.
In the vicinity of the opening of the fitting portion 3A, elastic contact portions 19 protrude inward from upper and lower and left and right wall surfaces. The elastic contact portion 19 can elastically contact the outer wall surface of the outer conductor 18A. In the center of the rear end of the fitting portion 3A, a pair of lances 13 is provided on the left and right sides of the side surface 26 of the outer conductor 3 so as to project outward. The lance 13 can be flexibly deformed and elastically engages with the lance engaging portion 12 of the connector housing 2.

A projecting piece 11 is cut and raised above the lance 13. The projecting piece 11 projects laterally outward from the side surface of the outer conductor 3 and is pushed into the guide groove 10 of the connector housing 2. The overhang width of both overhanging pieces 11 is slightly larger than the depth of the guide groove 10. A guide portion 11A is formed by chamfering the front end edge of the overhanging piece 11, and guides when the overhanging piece 11 is inserted into the guide groove 10. A dielectric assembly piece 29 is provided at the rear center of the upper surface of the fitting portion 3A. This dielectric assembly piece 29
Is protruded toward the inside front of the fitting portion 3A,
It is capable of bending and deforming outward. The dielectric assembly piece 29 is provided at the position of the groove 27 of the dielectric 4, and is engaged with the rear end edge of the engaging projection 28 of the dielectric 4 to remove the dielectric 4. Stop it.

Further, a folding piece 20 is provided at the upper rear end of the fitting portion 3A. The folded pieces 20 cover the rear ends of the fitting portion 3A and the board assembly portion 3B, and form the rear surface of the outer conductor 3. At the boundary between the folding piece 20 and the upper surface of the fitting portion 3A, cuts 23 are made from both left and right side edges, and a bending line 24 is provided at the boundary, so that the folding piece 20 is folded. The operation is performed smoothly. In the vicinity of the distal end of the folded piece 20, an engaging piece 22 is projected outward from the left and right edges. The engagement piece 22 is bent downward.
A projection 22A is provided at the center of the engagement piece 22 on the side that comes into contact with the outer surface of the board assembly part 3B.

Substrate assembling section 3 continuing to rear end of fitting section 3A
B is mounted on the printed circuit board 15. That is,
At the lower end of the board assembling portion 3B, a pair of left and right board assembling tabs 17 protrude downward and forward and backward, and are fitted into the through holes 15A of the printed circuit board 15. It is. In addition, engagement holes 21 are opened on the left and right wall surfaces of the board assembly portion 3B. When the folded piece 20 is folded toward the board assembly part 3B,
The projection 22A of the folded piece 20 is engaged with the engaging hole 21 so that the folded piece 20 and the board assembling portion 3B are prevented from coming off.

As shown in FIGS. 8 to 10, the connector housing 2 is integrally formed in a substantially rectangular parallelepiped shape with a synthetic resin, and is provided with a hood portion 8 which can accommodate a mating connector 18 in front thereof. ing. A housing portion 7 that can house the electrical connector 6 is provided at a rear portion of the connector housing 2.
Are formed. The housing portion 7 has substantially the same diameter and is open to the front and rear. A front portion thereof is a connection port 7A communicating with the inside of the hood portion 8, and a rear portion thereof is a mounting port 7B for starting mounting of the electrical connector 6. You. A pair of left and right guide grooves 10 are recessed at the upper end of the side wall 9 of the housing portion 7. A projecting piece 11 of the outer conductor 3 described later is pushed into the guide groove 10. A pair of left and right lance engaging portions 12 are provided at the center of the side wall 9. The lance 13 of the outer conductor 3 described later is engaged with the lance engaging portion 12. Also,
A pair of right and left mounting portions 14 are provided so as to protrude from a central lower portion of the connector housing 2 slightly behind. At the center of the mounting portion 14, a mounting hole 14A penetrating vertically is provided. The connector housing 2 is mounted on the printed circuit board 15 by inserting the mounting pins 25 into the mounting holes 14A (see FIG. 14). A lock projection 16 is provided on the upper wall surface inside the hood 8. Here, the lock portion of the mating connector 18 is engaged, and the connectors 1 and 18 are prevented from coming off.

The printed circuit board 15 has three board assembly tabs 5B, 17 extending from the lower end of the electrical connector 6.
The through hole 15A is opened at the position corresponding to the position of (1). Also, the mounting portion 14 of the connector housing 2
A pin hole 15B is opened at a position corresponding to the mounting hole 14A.

Next, the operation and effect of this embodiment configured as described above will be described with reference to FIGS.

First, a process of assembling the electrical conductor 6 by assembling the inner conductor 5, the dielectric 4, and the outer conductor 3 will be described with reference to FIG. The entire inner conductor 5 is pushed into the dielectric 4 while the tip of the connection tab 5A of the inner conductor 5 is inserted into the insertion hole 4B of the dielectric 4. The board assembly tab 5B is a dielectric 4
When the inner conductor 5 and the dielectric 4 are pushed into the mounting groove 4A, the mounting of the inner conductor 5 and the dielectric 4 is completed. On the other hand, the outer conductor 3 is bent to the point where the step of bending the folded piece 20 is left. The housing in which the inner conductor 5 and the dielectric 4 are assembled is housed in the housing portion 7 of the outer conductor 3 from the mounting opening 7B side.
When pushed to a predetermined position, the dielectric assembly piece 2 of the outer conductor 3 is pressed.
9 engages with the engagement protrusion 28 of the dielectric 4, and the dielectric 4 is prevented from being pulled out of the housing 7. Here, the folded piece 20 is bent downward. When the projection 22A of the engagement piece 22 fits into the engagement hole 21, the inner conductor 5 and the dielectric 4 are prevented from coming off. At this time, the rear surface of the outer conductor 3 is covered by the folded piece 20. Thus, the assembly of the electrical connector 6 is completed.

Next, in order to assemble the electric connector 6 into the connector housing 2, the electric connector 6 is pushed into the housing 7 of the connector housing 2 from the mounting opening 7 B. When the electrical connector 6 is press-fitted while aligning the position of the projecting piece 11 of the outer conductor 3 with the position of the guide groove 10 of the connector housing 2, the projecting piece 11 is press-fitted into the guide groove 10. At this time, since the front end edge of the projecting piece 11 is chamfered to form the guide portion 11A, the press-fitting operation into the guide groove 10 is smoothly started. Overhanging piece 11 is guide groove 1
By slightly biting into the wall forming 0, the electrical connector 6 is prevented from coming off.

When the electrical connector 6 is pushed into a predetermined position, the assembly of the electrical connector 6 and the connector housing 2 is completed, and the board shield connector 1 is completed (FIG. 12).
See). At this time, the lance 13 provided on the side surface of the outer conductor 3 is elastically engaged with the lance engaging portion 12 provided on the side wall 9 of the housing 7. Conventionally, the connector housing 105 and the outer conductor 104 have been engaged by a resin lance 106 provided on the connector housing 105 side. In the present embodiment, since the lance 13 is made of metal, the engagement force is enhanced. In addition, since the electrical connector 6 and the connector housing 2 are assembled by a press-fitting operation, rattling of the electrical connector 6 is restricted.

The board shield connector 1 thus assembled is assembled at a predetermined position on the printed circuit board 15. The board assembling tabs 5B and 17 extending from the lower end of the board shield connector 1 are pushed into the printed circuit board 15 in accordance with the positions of the through holes 15A. Next, mounting holes 14 of mounting portions 14 protruding from both sides of connector housing 2 are provided.
The assembly pin 25 is inserted while A is aligned with the pin hole 15B of the printed circuit board 15. Thus, the board shield connector 1 is assembled to the printed board 15.

As described above, according to the present embodiment, the electric connector 6 is positioned with respect to the connector housing 2 by press-fitting the outer conductor 3 into the housing 7. For this reason,
After assembly, rattling between the connector housing 2 and the outer conductor 3 is regulated. Thus, by positioning the connector housing 2 at a predetermined position on the printed circuit board 15, positioning with respect to the through hole 15A can be performed. This is particularly true for the board shield connector 1 and the printed circuit board 1.
This is effective when the assembling operation with No. 5 is automated. That is, if the board shield connector 1 is placed at a predetermined position with respect to the printed board 15, the positioning between the board assembly tabs 5B and 17 and the through hole 15A is accurately performed.

When the mating connector 18 is fitted to the board shield connector 1 after the board shield connector 1 has been assembled to the printed board 15 in this way, the connectors 1 and 18 are connected (FIG. 14). See).

The present invention is not limited to the above-described embodiment. For example, the following ones are also included in the technical scope of the present invention. (1) In the present embodiment, the overhanging pieces protrude from both left and right surfaces of the outer conductor, but may be provided on only one of the surfaces. Further, the projecting direction of the projecting piece may be a vertical direction. (2) In the present embodiment, the front edge of the overhanging piece is chamfered, but according to the present invention, the chamfer may not be provided. (3) In addition, a lance may not be provided.

[Brief description of the drawings]

FIG. 1 is an exploded side view of a board shield connector according to an embodiment.

FIG. 2 is a side view of a dielectric.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is a sectional view taken along line BB in FIG. 3;

FIG. 5 is a front view of an outer conductor.

FIG. 6 is a side sectional view of an outer conductor.

FIG. 7 is a plan sectional view of an outer conductor.

FIG. 8 is a rear view of the connector housing.

FIG. 9 is a front view of the connector housing.

FIG. 10 is a plan sectional view of a connector housing.

FIG. 11 is a side view showing a state when an electric connector is formed.

FIG. 12 is a side sectional view of a shield connector for a board.

FIG. 13 is a cross-sectional plan view of a shield connector for a board.

FIG. 14 is a side view showing a state in which the board shield connector is mounted on the printed circuit board and is not yet fitted to the mating connector.

FIG. 15 is a side sectional view of a conventional board shield connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Shield connector for boards 2 ... Connector housing 3 ... Outer conductor 4 ... Dielectric 5 ... Inner conductor 6 ... Electrical connector 7 ... Housing part 9 ... Side wall (side wall of housing part) 10 ... Guide groove 11 ... Projection piece 13 ... Lance 15: Printed circuit board 15A: Through hole 26: Side surface (side surface of outer conductor)

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masahiko Aoyama 1-14 Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Systems, Ltd. −104960 (JP, U) Actually open 60-121269 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 9/05 H05K 9/00 H01R 17/04

Claims (4)

(57) [Claims] An electric connector integrated by an inner conductor, an outer conductor for shielding and a dielectric made of an insulating material interposed therebetween is incorporated into a housing provided in a connector housing. A board shield connector in which a tip of a portion of the inner conductor that bends and protrudes from the rear of the connector housing is inserted into a through hole provided in a printed circuit board so as to be connected to a board side, wherein the outer conductor Is press-fitted into the housing portion to position the electrical connector with respect to the connector housing, and a press-fitting projecting piece projects outward on the side surface of the outer conductor.
On the other hand, the housing portion of the connector housing is
On the side wall, the projecting piece can be received in a press-fitted state.
A shield connector for a board, wherein an inner groove is provided . 2. An electric connector integrated by an inner conductor, a shield outer conductor, and a dielectric made of an insulating material interposed therebetween, is incorporated into a housing portion provided in a connector housing. A board shield connector in which a tip of a portion of the inner conductor that bends and protrudes from the rear of the connector housing is inserted into a through hole provided in a printed circuit board so as to be connected to a board side, wherein the outer conductor The electric connector is positioned with respect to the connector housing by being press-fitted into the housing portion. The side surface of the outer conductor is elastically engaged with a side wall in the housing portion to make the electrical connection. A shield connector for a board, wherein a lance for preventing a child from coming off is formed. Wherein the protruding piece board shield connector according to claim 1, wherein a chamfer is to guide the insertion into the guide grooves in the front edge of the. 4. Also claim 1 in a side surface of the outer conductor, characterized in that the lance forming the stopper of the electrical connectors are sealed elastically engaged with the side wall of the said housing portion is formed
Is a shield connector for a board described in 3 .