JPS64712Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a so-called L-shaped connector socket in which the insertion/removal direction of a mating plug and the protrusion direction of a terminal inserted into a wiring board are substantially perpendicular to each other.

In conventional DIN connector sockets of this type, in which the plug insertion/removal direction is almost the same as the terminal protrusion direction, the body of the socket is covered with a metal cover to shield the socket from electrostatic discharge from the outside. There is a structure. However, the L-shaped socket does not have a metal cover on its body, and only when a mating plug is inserted, the inside of the body is shielded from the outside by the metal cylindrical cover of the mating plug. However, when the plug is not inserted, the inside of the body is not shielded. Recently, as electronic devices become more sophisticated, it is desired that electrostatic shielding be performed even when a plug is not inserted.

The purpose of this invention is to provide shielding even when the plug is not inserted, and because this is installed, there is no need to make a ground connection between the chassis and the wiring board, and the noise coming through the connecting conductor is passed through the feed-through capacitor. It provides a connector socket that can be grounded.

Hereinafter, embodiments of the connector socket according to this invention will be described with reference to the drawings. As shown in FIGS. 3 and 4, a body 11 made of an insulating material is provided, and the outer peripheral surface of the front part 12 of the body 11 made of an insulating material substantially matches the shape of the inner peripheral surface of the metal cover of the mating plug. In the figure, it is cylindrical. A collar portion 13 is integrally formed at the rear end of the body 11. A plurality of contact receiving holes 14 are formed substantially parallel to the axis of the body 11, as shown in FIGS. 1 and 3. As shown in FIG. 3, each of these contact accommodation holes 14 has
For example, contacts 15 formed by punching a metal plate are inserted from the back side, and the protrusions on the back side of the contacts 15 are bent and extended at approximately right angles in the same direction to form terminal portions 16. There is. A protrusion 17 protrudes from the rear end of each contact 15 in a direction perpendicular to the extending direction of the contact receiving hole 14, and positions the contact 15 in the front-rear direction when inserted into the contact receiving hole 14. As shown in FIG. 5, a substantially ring-shaped retaining groove 18 is formed on the front surface of the flange portion 13 of the body 11, coaxially with the outer circumferential surface of the body front portion 12. A protrusion 19 for preventing rotation is protruded into the holding groove 18 .

As shown in FIGS. 2 to 4, a metal cylindrical body 21 is disposed coaxially outside the front part 12 of the body 11, and the rear end of the cylindrical body 21 is fitted into the holding groove 18. and retained. As shown in FIGS. 1 and 3, a gap is provided between the inner circumferential surface of the cylindrical body 21 and the outer circumferential surface of the front portion 12 of the body, forming a cover insertion portion 22. As shown in FIGS. A metal tongue piece 23 fixed to the cylindrical body 21 is located within the cover insertion portion 22 . The cylindrical body 21 has a shape in which a metal cover of a mating plug is fitted, that is, a cylinder in this example. As shown in FIG. 4, a square collar 24 is integrally formed at the front end of the cylinder 21, and a plurality of square holes 25 extending in the axial direction are formed in the cylinder 21 at approximately equal angular intervals in this example. It is formed of.
On the other hand, a spring metal band 26 is placed over the outer circumferential surface of the cylindrical body 21, and the rectangular hole 25 of the metal band 26 is
The tongue piece 23 is pushed inward at the corresponding portion. The metal bands 26 are attached to the outer peripheral surface of the cylindrical body 21 and fixed to each other by spot welding 27, for example. Further, a ground terminal 28 is integrally extended rearward from the rear end portions of both ends of the metal band 26, and further bent and extended at a substantially right angle in the same direction.
These ground terminals 28 protrude in the same direction as the terminal portions 16 of the contacts with the cylindrical body 21 disposed on the front portion 12 of the body.

A positioning notch 29 is formed at the rear end of the cylindrical body 21, and when the cylindrical body 21 is inserted into the holding groove 18, the anti-rotation protrusion 19 fits into the notch 29 to adjust the angle of the cylindrical body 21. The cylindrical body 21 and the body 11 are coupled to each other by being positioned in the direction and prevented from rotating. A mounting screw hole 30 is bored in the square collar 24 as shown in FIG. Figures 1 and 3
As shown in FIG. 4, a guide groove 32 is formed on the outer circumferential surface of the front portion 12 of the body, extending in the axial direction and for adjusting the angle with the mating plug.

As shown in FIG. 4, a pair of grooves 31 are formed at the rear end of the cylindrical body 21 so as to face each other along the circumferential direction. On the other hand, a pair of caulking recesses 32 are formed on both sides of the flange 13 of the body 11, and the depth of the caulking recesses 32 is deeper than the position of the retaining groove 18, so that it can be inserted into the retaining groove 18. The rear end of the cylindrical body 21 reaches into the caulking recess 32, and in this position the slot 3 is inserted as shown in FIG.
The rear part 31a of 1 is caulked to the bottom side of the caulking recess 32, and the end 31a is attached to the caulking recess 3.
The cylindrical body 21 is engaged with the front side wall 32a of the body 11 to prevent it from coming out from the body 11. In addition, tongue piece 23
The metal band 26 is punched out in a U-shape in the width direction, and the remaining part on the inside is used as the tongue piece 23, and the tongue piece 23 is connected to the band 26 on the front side, and the tongue piece 23 is extend backwards,
It is also bent inward and the ends are folded back to form a dogleg shape.

As shown in FIGS. 2, 3, and 4, a base 34 made of an insulating material is attached to the back side of the body 11 in an uneven manner. The base 34 is a substantially L-shaped plate, with a vertical portion 35 facing the back surface of the body 11 and a horizontal portion 36 facing the bottom surface of the body 11. The base 34 is shown in FIG. 2, FIG.
As shown in FIG. 4 and further in FIGS. 7 to 9, a pair of engaging pawls 37 are provided on both sides of the front end of the horizontal portion 36.
are protruded, and facing this, as shown in FIGS. 4 to 6, engaging recesses 38 are formed on both sides of the body flange 13.
The outer side of the bottom side is a tapered surface 39. When the pair of engagement claws 37 of the base 34 pinch both sides of the collar portion 13 and press the horizontal portion 36 against the body 11, the pair of claws 37 are pushed apart from each other along the tapered surface 39, forming a pair of engagement recesses. 38, and the base 34 and the body 11 are engaged with each other in an uneven relationship.

The claw 37 of the horizontal part 36 of the base 34 and the vertical part 35
A plurality of positioning holes 41 through which the terminal portion 16 is inserted are penetrated between the positioning holes 41 and
The inner circumferential surface of the upper end portion has a tapered opening such that the square positioning hole gradually becomes larger toward the upper side, so that the terminal portion 16 can be easily guided and inserted into the positioning hole 41. A slit hole 42 through which the ground terminal 28 is inserted is formed in the horizontal portion 35 between the pair of engaging claws 37 . Also, horizontal part 3
6, a presser piece 43 is integrally erected close to and parallel to the vertical portion 35, and the presser piece 43 presses the back surface of the body 11 to hold the contact 15 against the body 11, as shown in FIG. It's pressed inside. The vertical portion 35 also presses the back surface of the other contact 15, that is, the back surface of the terminal portion 16, to prevent it from coming off. As shown in FIG. 2, the retaining protrusion 44 is located on the front side of the collar portion 13 to prevent the base 34 from coming off backward. In this way, the base 34 and the body 11 are mechanically fixed to each other.

3 and 4 on the bottom surface of the horizontal portion 36 of the base 34.
As shown in the figure, a metal grounding plate 51 is attached. The ground plate 51 has a substantially rectangular shape, and a part of it extends integrally from the center of its front edge to the position of the ground terminal 28 of the metal band. Grounding piece 5 in contact
2 are provided integrally. The ground plate 51 has a terminal portion 1
A mounting hole 53 into which the holder 6 is inserted is formed. On the other hand, as shown in FIGS. 3, 9, and 10, a shallow recess 54 into which the ground plate 51 is substantially fitted is formed in the bottom surface of the horizontal portion 36 of the base. A fixing convex portion 55 is integrally projected from the bottom surface of the recess 54 at the position of the positioning hole 41 . Each of these fixing projections 55 has a positioning hole 41 extending therefrom. As shown in FIG. 11, on the outer peripheral surface of the fixing convex portion 55, a plurality of press-fitting protrusions 56 are integrally formed along the axial direction at equal angular intervals. The press-fitting protrusion 56 is not formed on the protruding end of the fixing convex portion 55, and the tip of the press-fitting protrusion 56 is pointed and has a triangular cross section. These fixing projections 55 are press-fitted into the attachment holes 53 of the ground plate 51, and the ground plate 51 is attached to the base 34.

As shown in FIG. 3, a feedthrough capacitor 57 is inserted above at least one of the terminal portions 16. As shown in FIG. 12, for example, the feedthrough capacitor 57 has an inner electrode 59 formed on the inner peripheral surface of a cylindrical body 58 made of a dielectric material such as ceramic, and an outer electrode 61 formed on the outer peripheral surface. Further, a collar-shaped connecting portion 62 extending from the outer periphery in the radial and axial directions is integrally formed at one end of the cylindrical body 58. As shown in FIG. 3, a feedthrough capacitor 59 is inserted onto the terminal portion 16 protruding from the grounding plate 51, a feedthrough capacitor 57 is inserted into the mounting hole 53 of the grounding plate 51, and the connecting portion 6
2 is brought into contact with the ground plate 51. 3rd on base 34
Capacitor accommodating portion 6 in which the inserted feedthrough capacitor 57 is located as shown in FIGS.
3 is formed. The capacitor accommodating portion 63 is formed by enlarging the positioning hole 41. The inner electrode 59 of the feedthrough capacitor 57 is inserted into the terminal portion 1
6, and the outer electrode 61 is soldered to the ground plate 5.
1 is soldered.

The connector socket according to this invention constructed as described above has a wiring board 4 as shown in FIG.
Terminal 16, grounding terminal 28 and grounding piece 5
2 are inserted and connected to the wiring, respectively. Therefore, the direction in which the plug is inserted and removed is parallel to the wiring board 45. Further, the square collar 24 is fixed to the chassis 46 with screws through mounting screw holes 30. Through this connection, the chassis 46 and the cylindrical body 21 are electrically connected, and the cylindrical body 21, the metal band 26, and the ground terminal 28 are sequentially electrically connected to the ground conductor of the wiring board 45. In other words, the wiring board 45
By attaching this connector, the ground conductor of the wiring board 45 and the chassis 46 are automatically connected to each other, and there is no need to connect the ground conductor of the wiring board 45 and the chassis 46 with a separate connection line. Furthermore, like this, the cylindrical body 21
The ground plate 51 is electrically grounded to the ground conductor of the wiring board 45 and the chassis 46, and the cylindrical body 21
shields most of the body 11 and surrounds the outer periphery, and further covers a part of the body 11 with a grounding plate 51, so that electrostatic shielding for the inside of the body 11 is performed. Further, noise entering the connector socket through the connecting conductor is dropped to the ground plate 51 through the feedthrough capacitor 57. Therefore, the connector socket becomes less susceptible to noise. Of course, when a plug is inserted into this socket, the outer metal cover of the plug is inserted into the cover insertion part 22, and at this time, the inner peripheral surface of the cylinder body 21 and the outer peripheral surface of the metal cover come into contact with each other, and the tongue The piece 23 elastically contacts the outer peripheral surface of the metal cover of the plug, so that the ground of the metal cover of the plug and the socket are well electrically connected to each other.

Moreover, the metal cylindrical body 21 is integrally formed with the rectangular brim 24 by drawing processing,
On the other hand, a metal band 26 is attached to its outer periphery, the cylindrical body 21 is passed over the front part 12 of the body 11, the end is inserted into the holding groove 18, and the caulked part 31a is inserted into the caulked recess 32. The cylindrical body 21 and the body 11 can be easily fixed to each other by caulking, and then, with the contacts 15 inserted into the contact receiving holes 14 from the back side of the body 11, the base 34 is positioned so that each terminal portion 16 is positioned. The base 34 is coupled to the body 11 so that the base 34 is inserted through the hole 41 and the ground terminal 28 is passed through the slit 42. At that time, the engaging claw 37 and the engaging recess 38
The two are connected to each other by a convex-concave fit. The ground plate 51 is attached to the base 34 by simply press-fitting the convex portion 55 into the attachment hole 53. Thereafter, the feedthrough capacitor 57 is inserted onto the terminal portion 16. In this way, the entire assembly is extremely simple. In the above description, the cylindrical body 21 and the band 26 are constructed as separate bodies, but they may be integrated and the tongues extruded from the cylindrical body. The metal cover insertion portion 22 is not necessarily limited to a cylindrical shape, but is configured to correspond to the metal cover of the mating plug, such as a square cylindrical shape.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an example of a connector socket according to this invention, Fig. 2 is a right side view of Fig. 1, Fig. 3 is a sectional view taken along line AA of Fig. 1, and Fig. 4 is a cross-sectional view of Fig. 1. An exploded perspective view, FIG. 5 is a front view of the body 11, and FIG. 6 is a front view of the body 11.
The figures are the rear view of Fig. 5, Fig. 7 is a plan view of the base 34, Fig. 8 is the front view of Fig. 7, and Fig. 9 is the same as Fig. 7.
BB line sectional view, Figure 10 is the bottom view of Figure 8, Figure 1
1A is an enlarged bottom view of the fixing convex portion 55, FIG. 11B is a front view of FIG. 11A, and FIG. 12 is a sectional view of the feedthrough capacitor 57. 11: Body, 12: Front part of body, 13: Body flange, 14: Contact accommodation hole, 15: Contact, 16: Terminal part, 18: Holding groove, 21:
Cylindrical body, 23: tongue piece, 26: metal band, 28: ground terminal, 22: cover insertion part, 31a: caulking part, 32: caulking recess, 34: base, 35: base vertical part, 36: base horizontal part, 37: Engagement claw, 38: Engagement recess, 41: Terminal positioning hole, 4
2: Grounding terminal insertion slit, 43: Holding piece, 4
4: Retaining protrusion, 51: Grounding plate, 57: Feedthrough capacitor.

Claims (1)

[Scope of utility model registration request] A plurality of contact receiving holes are formed through the body of the insulating material almost parallel to its axis, a collar is integrally formed at the rear end of the body, and a retainer is provided along the circumferential direction on the front surface of the collar. A groove is formed,
Contacts are inserted into the contact housing holes from the back side of the body, and the rear end portions are bent and extended to the same side at almost right angles to the plug insertion/removal direction to form a terminal portion, and the rear end portions are bent and extended to the same side at approximately right angles to the plug insertion/removal direction, and are formed on the outside of the front portion of the body. A metal cylindrical body is disposed coaxially with the metal cylindrical body, and the rear end of the metal cylindrical body is fitted into and held in the holding groove, and there is a space between the inner circumferential surface of the cylindrical body and the body. A metal cover insertion portion of the plug is configured, a metal tongue piece fixed to the cylindrical body is located within the metal cover insertion portion, and a base of an insulating material is attached to the back surface of the body in a concave-convex relationship, and the base The rear end of the contact is held down, a ground plate is attached to the base, the terminal part of the contact is inserted through these bases and the ground plate, and the terminal part is positioned by the terminal part insertion hole of the base. A grounding terminal fixed to the cylindrical body projects from the base in the same direction as each of the terminal parts, a feedthrough capacitor is inserted onto at least one of the terminal parts, and the feedthrough capacitor is inserted through the grounding plate. A connector socket whose outer electrode is electrically connected to a ground plate.