JP3035547B1 - Coaxial connector with switch - Google Patents

Abstract

An object of the present invention is to provide a coaxial connector with a switch that can easily arrange a ground pattern 72 on both sides and a back side of a signal pattern 71 of a printed wiring board 70 to be connected. SOLUTION: Signal legs 10b, switch legs 11b of a switch terminal and a ground terminal, respectively.
The pair of ground legs 12b are formed of leaf spring pieces, and the signal leg 10b and the switch leg 11b
Project inside. In addition, the pair of ground legs 12b is projected from the same plane as the signal legs 10b. If each conductive pattern is printed on a portion corresponding to these legs, the ground pattern 72 can be arranged on both sides of the signal pattern 71 with good balance. When the coaxial plug is connected, the switch pattern 73 has the same potential as the ground pattern 72 and can function as the ground pattern 72 on the back surface of the signal pattern 71.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coaxial connector for connecting to a coaxial plug, and more particularly to a coaxial connector with a switch for detecting the connection of the coaxial plug by the connection between a switch terminal and a ground terminal.

[0002]

2. Description of the Related Art For example, when a high-frequency signal is input / output between an external device such as a notebook personal computer and an electronic device such as a mobile phone, a coaxial plug connected to the external device via a coaxial cable is connected to the electronic device. It is fitted and connected to a coaxial connector with a switch that connects to the printed wiring board inside.

FIG. 11 to FIG. 13 show this conventional coaxial connector 100 with a switch.
The signal terminal 103, the ground terminal 104, and the switch terminal 105, which are formed by bending a metal plate, are housed in an insulating housing 102 provided with a housing 01.

As shown in FIG. 12, the insulating sleeve 101 is formed in a cylindrical shape having an outer diameter slightly smaller than the inner diameter of the ground terminal 51 so that the cylindrical ground terminal 51 of the coaxial plug 50 is fitted from the outside. A pin insertion hole 101a is formed along the central axis.

The signal terminal 103 has a pin insertion hole 10
At the rear (right side in FIG. 12), the middle is supported by the insulating housing 102, and the front free end side is a pin contact portion 103a which is a leaf spring piece, and a pin insertion hole 101a.
Is facing inside. In addition, the rear is the insulating housing 102
Are formed in parallel to the bottom surface of the printed wiring board 120 and are connected to the signal pattern 121 of the printed wiring board 120 by soldering.

The earth terminal 104 has a cylindrical earth shell 104a having an upper part cut away, and, as shown in FIG. 13, a pair of earth legs 104b branched bifurcated rearward from both sides of the earth shell 104a. Consists of The earth shell 104a is fitted on the outer peripheral surface of the insulating sleeve 101, and is grounded from the rear of the insulating housing 102 on the same plane as the signal leg 103b.
Are connected to the ground pattern 122 of the printed wiring board 120 by soldering.

As shown in FIGS. 11 and 12, the switch terminal 105 is attached to the insulating housing 102 along the upper part of the insulating sleeve 101. The switch contact portion 105a at the front end is vertically moved around the insulating sleeve 101. It is formed of a leaf spring piece that bends in the direction. The switch contact portion 105a has a notch in the earth shell 104a and a clearance groove 10 in the insulating sleeve 101 so as not to interfere with the earth shell 104a and the insulating sleeve 101 when deformed.
1b. Switch terminal 1
05, the signal leg 103b and the ground leg 104
b to be on the same plane as the printed wiring board 1
The switch legs 105b are connected to the 20 switch patterns 123 by soldering.

When the coaxial plug 50 shown in FIG. 12 is inserted into the conventional coaxial connector with a switch configured as described above, the center pin 52 of the coaxial plug 50 is inserted into the pin insertion hole 10.
1a, and comes into contact with the pin contact portion 103a, and is electrically connected to the signal pattern 121 of the printed wiring board 120 via the signal terminal 103. On the other hand, the ground terminal 51 of the coaxial plug 50 is fitted around the insulating sleeve 101, contacts the ground shell 104 a, and connects the ground pattern 122 of the printed wiring board 120 via the ground terminal 51.
And make an electrical connection.

The ground terminal 51 is connected to the insulating sleeve 1.
01, the switch pattern 123 of the printed wiring board 120 is connected to the switch terminal 105 and the ground terminal 5.
1. Electrical connection to the ground pattern 122 of the printed wiring board 120 via the ground terminal 104. Therefore, the connection with the coaxial plug 50 can be detected by monitoring the potential change of the switch pattern 123.

[0010]

The above conventional coaxial connector with switch 100 has terminals 103, 10 and 10 respectively.
4 and 105 are soldered to the respective patterns 121, 122 and 123 printed on the surface of the printed wiring board 120 and are surface-mounted on the printed wiring board 120. The mounting process on the printed wiring board 120 by soldering Is required, which causes the cost of the coaxial connector with switch 100 to increase.

In addition, since the switch terminal 105 is pulled out from above the insulating sleeve 101 and the ground terminal 104 is pulled out from the side of the insulating sleeve 101 to the rear of the insulating housing 102, as shown in FIG. Of the signal leg 1 on the printed circuit board 120.
The pair of ground legs 104b cannot be disposed equidistant from the pair 03g. Therefore, the ground pattern 122 cannot be arranged on both sides of the signal pattern 121 on the printed wiring board 120 in a well-balanced manner.
This causes deterioration of the performance of the high-frequency signal flowing through the power supply 21.

On the other hand, the switch leg 105b can be pulled out of the ground leg 104b.
Therefore, the switch terminal 105 has a long and complicated shape, and further, the shape of the insulating housing 102 for mounting the switch terminal 105 also has a complicated shape.
Processing became difficult.

Further, in order to maintain the performance of the high-frequency signal flowing through the signal pattern 121, it is necessary to print an earth pattern 122 on the back of the signal pattern 121 printed on the surface of the printed wiring board 120. In order to electrically connect with the ground pattern 122 on the front surface and the rear surface, it is necessary to provide a through hole or the like in the printed wiring board 120.

The present invention has been made to solve the above problems, and has as its object to provide a coaxial connector with a switch that can connect a printed wiring board by elastic contact.

Further, a pair of ground legs 104b can be arranged at an equal distance from the signal leg 103b without making the switch terminal 105 a complicated shape.
An object of the present invention is to provide a coaxial connector with a switch in which a ground pattern 122 can be provided on a surface of a printed wiring board opposite to a printed surface of a signal terminal 103 without providing a through hole or the like.

[0016]

According to another aspect of the present invention, there is provided a coaxial connector with a switch which is connected to a pin contact portion which contacts a center pin of a coaxial plug and a signal pattern of a printed wiring board. A signal terminal having a signal leg on the side, a ground terminal having a ground leg connected to the ground pattern of the printed wiring board, and a ground contact having a ground leg contacting the ground terminal of the coaxial plug, and a switch contact contacting the ground terminal of the coaxial plug. Part, a switch terminal having a switch leg connected to the switch pattern of the printed wiring board, and an insulating sleeve having a pin insertion hole for inserting a center pin of the coaxial plug,
With the pin contact part facing the pin insertion hole and the earth shell and switch contact part facing the insulation sleeve,
An insulating housing that houses the signal terminal, the ground terminal, and the switch terminal insulated from each other,
When the coaxial plug is connected, the center pin is connected to the signal terminal, and the coaxial connector with the switch connects the switch terminal and the ground terminal via the ground terminal fitted around the insulating sleeve.
A board insertion recess for inserting a printed circuit board is formed in the insulating housing, and a signal leg, a forked ground leg, and a switch leg are each formed of a leaf spring piece elastically contacting the printed circuit board. The legs protrude from one surface of the substrate insertion recess, the forked ground legs protrude from the one surface of the substrate insertion recess at both sides of the signal leg, and the switch leg faces the signal leg. And protrudes from the other surface of the substrate insertion recess.

The signal leg, the bifurcated ground leg, and the switch leg are each formed of a leaf spring piece that elastically contacts the printed wiring board. And the signal pattern, the ground pattern, and the switch pattern printed on the back surface respectively make elastic contact.

Since the switch leg does not protrude from one side of the board insertion recess where the signal leg protrudes, the forked ground leg can be protruded at both sides of the signal leg. Ground patterns can be arranged in a well-balanced manner.

Since the switch leg protrudes from the other surface of the board insertion recess facing the signal leg, the switch pattern is printed on the surface of the printed wiring board opposite to the printed surface of the signal terminal. When the coaxial plug is connected, since the switch terminal and the ground terminal are electrically connected, the switch pattern has the same potential as the ground pattern, and thus acts as a ground pattern printed on the surface opposite to the signal terminal.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A switch-equipped coaxial connector 1 according to an embodiment of the present invention will be described below with reference to FIGS. In these drawings, for the sake of convenience, the front (left side in FIGS. 5 and 6) side of the coaxial connector 1 with a switch will be described as a front side and the rear side will be described as a rear side.

As shown in FIGS. 1 and 2, the coaxial connector with switch 1 according to the present embodiment shares the insulating housing 2 with the printed wiring board connector 60 having a plurality of control signal contacts. The coaxial connector with switch 1 is provided as a pair on both sides of the printed circuit board connector 60.

FIGS. 3 and 4 show enlarged portions of the coaxial connector 1 with a switch of FIGS. 1 and 2, respectively. The insulating housing 2 made of synthetic resin has a connector insertion recess 3 Are formed to form a cylindrical insulating sleeve 4.

The coaxial connector 50 with the switch is connected to the coaxial plug 50 shown in the above-mentioned conventional example from the front. Therefore, the insulating sleeve 4 is fitted with the cylindrical ground terminal 51 of the coaxial plug 50 from the outside. As a result, the outer diameter of the ground terminal 51 is slightly smaller than the inner diameter of the ground terminal 51, and the pin insertion hole 5 is formed in a cylindrical shape along the center axis thereof.

On the rear surface of the insulating housing 2, a board insertion recess 6 into which a printed wiring board 70 is inserted from the rear side is provided in a horizontal direction, and the signal terminal housing groove 7 intersects with the board insertion recess 6. The switch terminal receiving groove 8 and a pair of ground terminal receiving grooves 9 are recessed from the rear (see FIG. 4).

The signal terminal accommodating groove 7 is for accommodating the signal terminal 10, is recessed in the front-rear direction on the lower surface of the board insertion recess 6, and communicates with the pin insertion hole 5 of the insulating sleeve 4 at the front. It is.

The signal terminal 10 is formed by pressing a conductive metal plate such as beryllium copper, and as shown in FIG. 7, a base 10a positioned in the signal terminal receiving groove 7, and a rear portion of the base 10a. A signal leg 10b, which is obtained by folding the band-shaped piece connected to the front diagonally upward and in a U-shape to form a leaf spring piece, and a pair of leaf spring pieces that cantileverly support both standing pieces in the forward direction. And a pin contact portion 10c. The pin contact portion 10c is a base 1 that is bent upward in a crank shape so as to reach the inside of the pin insertion hole 5.
0a is integrally connected.

The signal terminal 10 is press-fitted into the signal terminal accommodating groove 7 from behind the insulating housing 2 and is pressed into the mounting position shown in FIG. The projection is locked to the inner wall surface of the signal terminal receiving groove 7 and is fixed to prevent it from falling off. When the signal terminal 10 is mounted in the signal terminal receiving groove 7, the pin contact portion 10 c faces forward along the pin insertion hole 5, and the signal leg 10 b projects from the lower surface of the board insertion recess 6.

The switch terminal accommodating groove 8 is for accommodating the switch terminal 11 shown in FIG. 8, and is recessed in the front-rear direction on the upper surface of the board insertion concave portion 6 facing the signal terminal accommodating groove 7. Communicates with the connector insertion recess 3 along the upper part of the connector.

The switch terminal 11 is also formed by pressing a conductive metal plate such as beryllium copper or the like. As shown in FIG. 8, a base 11a positioned in the switch terminal accommodating groove 8 and a rear portion of the base 11a are provided. A switch leg 11b, which is formed by folding the strip connected to the front side obliquely downward in a U-shape toward the front to form a leaf spring piece, and a switch contact portion 11c which is supported in front of the base 11a and is a leaf spring piece. ing.

The switch terminal 11 is also pressed into the switch terminal receiving groove 8 from behind the insulating housing 2,
Locking projections projecting from both sides of the base 11a at the mounting position shown in FIG. When the switch terminal 11 is mounted in the switch terminal accommodating groove 8, the switch contact portion 11c faces along the outer peripheral surface at the upper portion of the insulating sleeve 4, the switch leg portion 11b projects from the upper surface of the substrate insertion concave portion 6, and the signal leg is provided. It faces the part 10b. Note that the switch contact portion 11c is located above the coaxial plug 50 on the insulating sleeve 4.
In order to prevent the switch contact portion 11c from being elastically deformed, a relief hole 4a is formed at an upper portion of the insulating sleeve 4 so as to prevent interference with the elastically deformed switch contact portion 11c.
A rectangular notch 12d is formed in the upper part of 2c.

Each of the pair of earth terminal receiving grooves 9 is provided with a bifurcated base 12 of the earth terminal 12.
a, 12a and the ground leg portions 12b, 12b are accommodated in the lower surface of the board insertion concave portion 6 and are recessed in the front-rear direction on both sides at equal intervals around the signal terminal accommodating groove 7, and the front is shown in FIG. Thus, both sides of the insulating sleeve 4 are open to the front of the insulating housing 2.

The ground terminal 12 is also formed by punching and bending a conductive metal plate. As shown in FIG. 9, a cylindrical ground shell 12c and a bifurcated rearward from both sides of the ground shell 12c are provided. It comprises a pair of bases 12a connected in series and an earth leg 12b formed by folding a strip connected to the rear of each base 12a obliquely upward toward the front in a U-shape to form a leaf spring piece. I have. As described above, the rectangular notch 12d is formed in the upper portion of the earth shell 12c so as not to contact the switch contact portion 11c of the switch terminal 11.

The earth terminal 12 presses the side base 12a and the earth leg 12b into a pair of earth terminal receiving grooves 9, respectively, while covering the earth shell 12c on the insulating sleeve 4 from the front of the insulating housing 2. When it is press-fitted to the mounting position shown in FIG. 6, the locking projections protruding on both sides of the base 12a are locked to the inner wall surface of the earth terminal accommodating groove 9, and are fixedly secured. When the earth terminal 12 is attached, the earth shell 12c covers the outer periphery of the insulating sleeve 4 with the upper rectangular notch 12d overlapping the escape hole 4a of the insulating housing 2, and the signal leg 10b on the lower surface of the board insertion recess 6 is removed. The ground legs 12b protrude toward the upper surface from both sides with respect to the center.

FIG. 4 is a rear view of the coaxial connector with switch 1 assembled in this manner. From the lower surface of the board insertion recess 6 into which the printed wiring board 70 is inserted, a pair of ground legs 12b and the center thereof are shown. Signal leg 1 in position
0b protrudes upward, and the switch leg 11b protrudes downward from the upper surface facing the signal leg 10b.

On the printed wiring board 70 inserted into the board insertion recess 6, conductive patterns 71, 72, 73 are printed corresponding to the protruding positions of the legs 10b, 11b, 12b. That is, the signal pattern 71 is printed on the rear surface of the printed wiring board 70 and the ground pattern 72 is printed at equal intervals on both sides of the signal pattern 71, and the switch pattern 73 is placed above the signal pattern 71, that is, on the surface of the printed wiring board 70.
Is printed.

Therefore, as shown in FIG. 10, when the printed wiring board 70 is inserted into the board insertion recess 6 from the rear, the legs 10b, 11b, 12b formed of leaf spring pieces are printed on the corresponding conductive portions. The signal terminal 10 is electrically connected to the signal pattern 71, the ground terminal 12 is electrically connected to the ground pattern 72, and the switch terminal 11 is electrically connected to the switch pattern 73, respectively.

Before the coaxial plug 50 is connected to the switch-equipped coaxial connector 1, the earth terminal 12 and the switch terminal 11 are insulated from each other and the insulating housing 2 is insulated.
Are not electrically connected, and the switch pattern 73 is maintained at a constant potential by a switch signal applying means (not shown).

When the coaxial plug 50 is inserted into the connector insertion recess 35 from the front, the center pin 52 of the coaxial plug is inserted into the pin insertion hole 5 and makes elastic contact with the pin contact portion 10c of the signal terminal 10. In addition, a cylindrical grounding terminal 51
Are fitted around the insulating sleeve 4 and make sliding contact with the earth shell 12c arranged on the outer peripheral surface of the insulating sleeve 4 and the switch contact portion 11c.

Accordingly, the center pin 52 is connected to the signal pattern 71 via the signal terminal 10 and is connected to the ground terminal 5.
1 is a ground pattern 7 via the ground terminal 12
Connect to 2. Further, since the switch terminal 11 is connected to the ground terminal 12 via the ground terminal 51, the switch pattern 73 becomes the ground potential, and the connection of the coaxial plug 50 can be detected by monitoring this voltage change.

The connection of the center pin 52 to the signal pattern 71 on the printed wiring board 70 results in the signal pattern 71
, A high-frequency signal flows, but a ground pattern 72 is printed at equal intervals on both sides of the signal pattern 71, and a switch pattern 73 having the same potential as the ground pattern 72 is printed on the front side thereof. In addition, high-frequency signals can be transmitted without deteriorating characteristics.

The present invention is not limited to the above embodiment, but can be variously modified. For example, in the above-described embodiment, the printed wiring board connector 60 having a plurality of control signal contacts and the insulating housing 2 are shared. However, the present invention may be applied to a coaxial connector with a switch manufactured as a single component.

The coaxial plug 50 and the coaxial plug 5
The shape of the insulating sleeve 4 into which 0 is fitted is not necessarily limited to a cylindrical shape, but may be a rectangular cylindrical shape.

[0043]

According to the first aspect of the present invention, the printed wiring board 70 can be connected without requiring a soldering step.

Further, the ground pattern 72 can be printed on the printed wiring board 70 on both sides of the signal pattern 71 in a well-balanced manner, and the performance of the high-frequency signal flowing through the signal pattern 71 can be prevented from deteriorating.

Further, since the switch pattern 73 having the same potential as the ground pattern 72 can be printed on a portion corresponding to the surface opposite to the printed surface of the signal pattern 71, the switch pattern 73 is reverse to the signal pattern 71 without providing a through hole or the like. The ground pattern 72 can be arranged on the side surface.

[Brief description of the drawings]

FIG. 1 is a front view of a composite connector provided with a coaxial connector with a switch 1 according to an embodiment of the present invention.

FIG. 2 is a rear view of the composite connector of FIG. 1;

FIG. 3 is an enlarged front view showing the coaxial connector with switch 1 of FIG. 1;

FIG. 4 is an enlarged rear view of the coaxial connector with switch 1 of FIG. 2;

FIG. 5 is a longitudinal sectional view taken along the line AA of FIG. 3;

FIG. 6 is a transverse sectional view taken along line BB of FIG. 3;

7A is a plan view of the signal terminal 10, FIG.
FIG. 2B is a side view of the signal terminal 10.

8A is a plan view of a switch terminal 11, FIG.
FIG. 2B is a side view of the switch terminal 11.

FIG. 9A is a plan view of an earth terminal 12,
FIG. 2B is a side view of the ground terminal 12.

FIG. 10 is a partially omitted rear view of the coaxial connector with switch 1 to which the printed wiring board 70 is connected.

FIG. 11 is a partially omitted front view showing a conventional coaxial connector with switch 100.

FIG. 12 is a longitudinal sectional view of the coaxial plug 50 and the coaxial connector with switch 100.

13 is a cross-sectional view of the coaxial connector with switch 100 of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coaxial connector with switch 2 Insulation housing 4 Insulation sleeve 5 Pin insertion hole 6 Substrate insertion recess 10 Signal terminal 10b Signal contact part 10c Pin contact part 11 Switch terminal 11b Switch leg 11c Switch contact part 12 Earth terminal 12b Earth leg 12c Earth Shell 50 Coaxial plug 51 Ground terminal 52 Center pin 70 Printed wiring board 71 Signal pattern 72 Ground pattern 73 Switch pattern

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-283235 (JP, A) JP-A-3-52977 (JP, U) JP-A-1-166981 (JP, U) JP1 15087 (JP, Y2) Jiko 61-21806 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 9/05-9/07 H01R 13/70-13/713 H01R 17/00-17/18 H01R 23 / 26,23 / 68

Claims (1)

(57) [Claims] 1. A center pin (5) of a coaxial plug (50).
A signal terminal (10) having a pin contact portion (10c) for contacting 2) and a signal leg (10b) on the other side connected to a signal pattern (71) of a printed wiring board (70); and a coaxial plug (50). And a ground leg (12b) connected to a ground pattern (72) of a printed wiring board (70) and a ground shell (12c) contacting a ground terminal (51) of the printed wiring board.
A contact terminal (11c) that contacts the ground terminal (51) of the coaxial plug (50); and a printed circuit board (70).
A switch terminal (11) having a switch leg (11b) connected to the switch pattern (73), and an insulating sleeve having a pin insertion hole (5) for inserting a center pin (52) of the coaxial plug (50). (4)
With the pin contact part (10c) facing the pin insertion hole (5),
The signal terminal (10), the earth terminal (12), and the switch terminal (11) are housed insulated from each other so that the earth shell (12c) and the switch contact part (11c) face the periphery of the insulating sleeve (4). When the coaxial plug (50) is connected, the center pin (52) is provided.
Is connected to the signal terminal (10) and the switch terminal (11) is connected to the ground terminal (12) via the ground terminal (51) fitted around the insulating sleeve (4). A board insertion recess (6) for inserting a printed wiring board (70) is recessed in the insulating housing (2), and a pair of grounding legs (1) forked with the signal leg (10b).
2b) and the switch leg (11b) are each formed of a leaf spring piece elastically contacting the printed wiring board (70), and the signal leg (10b) is projected from one surface of the board insertion recess (6). The ground leg (12b) is projected from the one side of the board insertion recess (6) at both sides of the signal leg (10b) as a center, and the switch leg (11b) faces the signal leg (10b). A coaxial connector with a switch, wherein the coaxial connector is protruded from the other surface of the substrate insertion recess (6) at a position.