WO2022137957A1

WO2022137957A1 - Electrical connector

Info

Publication number: WO2022137957A1
Application number: PCT/JP2021/042993
Authority: WO
Inventors: 立堯林; 浩平野口; 秀一城迫
Original assignee: Ｉ－Ｐｅｘ株式会社
Priority date: 2020-12-25
Filing date: 2021-11-24
Publication date: 2022-06-30
Also published as: TW202232831A; KR20230116881A; CN116636098A; JP2022102760A

Abstract

Provided is a receptacle connector comprising: a ground contact that has a cylindrical standing wall portion and a substrate connection portion to be connected to a substrate; a signal contact that is disposed so as to be surrounded by the standing wall portion; a housing that holds the ground contact and the signal contact in an insulated state; and an extension portion that secures the housing onto the ground contact. The signal contact has a contact portion, and a terminal portion that extends so as to be drawn out of the contact portion and is connected to a signal terminal portion. The extension portion secure the housing onto the ground contact by extending from the housing in a direction intersecting the direction in which the terminal portion extends and being locked to the substrate connection portion outside the standing wall portion.

Description

Electrical connector

This disclosure relates to electrical connectors.

A connector device is known that electrically connects a signal transmission member and an electric circuit of a board by fitting a plug connector connected to the signal transmission member and a receptacle connector mounted on the board (for example). See Patent Document 1). The receptacle connector of Patent Document 1 is an insulator having an external terminal having a tubular portion, an internal terminal arranged inside the tubular portion, and a groove forming a groove connecting the inside and the outside of the tubular portion. It has a body and.

International Publication No. 2020/031760

Here, the receptacle connector of Patent Document 1 is formed with a notch for arranging an insulator from the inside to the outside of the tubular portion. Due to such a notch, the signal from the internal terminal is likely to leak to the outside (noise is likely to be generated), and the EMI (Electromagnetic Interference) characteristic of the connector is deteriorated.

Therefore, the present disclosure provides an electric connector that further improves the EMI characteristics.

The electric connector according to one aspect of the present disclosure is an electric connector mounted on a substrate, and has a contact portion extending in a direction away from the substrate and a terminal portion extending along the substrate so as to be pulled out from the contact portion. It has a signal contact, a vertical wall portion that seamlessly surrounds the circumference of the contact portion, and a substrate connection portion that is integrally formed with the vertical wall portion and extends outward along the substrate and seamlessly surrounds the periphery of the vertical wall portion. It comprises an insulating housing located between the ground contact and the signal contact and the ground contact and holding the signal contact and the ground contact.

In the electric connector according to one aspect of the present disclosure, the contact portion of the signal contact is seamlessly surrounded by the standing wall portion of the ground contact in the direction away from the substrate. Further, in the direction along the substrate, the periphery of the vertical wall portion is seamlessly surrounded by the substrate connection portion of the ground contact. In addition, an insulating housing is interposed between the signal contact and the ground contact. According to such a configuration, since the signal contact is seamlessly surrounded by the ground contact, the signal from the signal contact is less likely to leak to the outside of the ground contact (a configuration in which noise is less likely to occur). This makes it possible to improve the EMI characteristics of the electric connector.

In the electrical connector according to one aspect of the present disclosure, the housing has a columnar portion extending along the inner peripheral surface of the vertical wall portion. With such a configuration, the contact area between the housing and the standing wall portion is increased. This allows the housing to more preferably hold the signal contact and the ground contact.

In the electrical connector according to one aspect of the present disclosure, the ground contact has a protruding locking portion that projects toward the area surrounded by the vertical wall portion and locks the housing to the ground contact. According to such a configuration, the vertical wall portion and the columnar portion extending along the inner peripheral surface of the vertical wall portion are engaged by the locking portion protruding from the region surrounded by the vertical wall portion. This prevents the housing from falling off, so that the housing can be held more preferably.

In the electric connector according to one aspect of the present disclosure, the locking portion protrudes from the tip end portion of the vertical wall portion in the direction away from the substrate toward the region surrounded by the vertical wall portion, and is engaged with the housing. A recess that is locked to the stop is formed. By fitting the protruding locking portion to the concave portion formed in the columnar portion, the movement (for example, rotation) of the housing along the inner peripheral surface of the vertical wall portion is further suppressed. This makes it possible to hold the housing more favorably.

In the electric connector according to one aspect of the present disclosure, the tip portion of the vertical wall portion is formed so as to bend toward the area surrounded by the vertical wall portion. According to such a configuration, in the region surrounded by the vertical wall portion, the housing along the inner peripheral surface comes into contact with the tip portion, so that the movement of the housing in the direction away from the substrate is auxiliary suppressed. This makes it possible to hold the housing more favorably.

In the electric connector according to one aspect of the present disclosure, a pair of locking portions are provided so as to face each other with the contact portion interposed therebetween. Since the pair of locking portions face each other around the contact portion, the movement of the housing is suppressed in a well-balanced manner, so that the housing can be held more preferably.

In the electric connector according to one aspect of the present disclosure, the ground contact and the housing are formed separately, and the housing has a press-fitting portion of a convex surface facing the inner peripheral surface of the vertical wall portion. Since the ground contact and the housing are formed separately, it is possible to manufacture an electric connector by an assembly method, so that the manufacturing equipment can be simplified. Further, since the press-fitting portion which is a convex surface presses the inner peripheral surface of the vertical wall portion of the ground contact, the fixing strength of the housing is further increased, so that the housing can be held more preferably.

In the electric connector according to one aspect of the present disclosure, the ground contact has a vertical wall portion and a substrate connecting portion integrally formed by drawing. By drawing, the standing wall portion of the ground contact and the substrate connecting portion are integrally formed, and no seam is formed between the standing wall portion and the substrate connecting portion. This makes it possible to improve the ease of manufacturing the ground contact.

In the electrical connector according to one aspect of the present disclosure, the housing is integrally formed with the ground contact by insert molding so as to include the periphery of the locking portion. By fixing the columnar portion and the locking portion, the housing can be held more preferably.

According to the present disclosure, it is possible to provide an electric connector having further improved EMI characteristics.

It is a perspective view of the connector device in 1st Embodiment. It is a perspective view of the receptacle connector mounted on the printed circuit board. It is a figure which shows the receptacle connector. 3A is a plan view, FIG. 3B is a bottom view, and FIG. 3C is a perspective view. It is a figure which shows the signal contact of a receptacle connector. 4 (a) is a plan view, and FIG. 4 (b) is a perspective view. It is a figure which shows the ground contact of a receptacle connector. 5 (a) is a plan view, FIG. 5 (b) is a bottom view, and FIG. 5 (c) is a perspective view. It is a figure which shows the housing of the receptacle connector. 6 (a) is a plan view, FIG. 6 (b) is a bottom view, and FIG. 6 (c) is a perspective view. It is a perspective view which shows the receptacle connector before press-fitting and fixing. It is a figure which shows the mating state of a plug connector and a receptacle connector. 8 (a) is a plan view, and FIG. 8 (b) is a cross-sectional view taken along the line AA of FIG. 8 (a). It is a figure which shows the receptacle connector in 2nd Embodiment. 9 (a) is a plan view, FIG. 9 (b) is a bottom view, and FIG. 9 (c) is a perspective view. It is a perspective view of the connector device in 3rd Embodiment. It is a perspective view of the receptacle connector mounted on the printed circuit board. It is a figure which shows the receptacle connector. 12 (a) is a plan view, FIG. 12 (b) is a bottom view, and FIG. 12 (c) is a perspective view. It is a figure which shows the signal contact of a receptacle connector. 13 (a) is a plan view, and FIG. 13 (b) is a perspective view. It is a figure which shows the ground contact of a receptacle connector. 14 (a) is a plan view, FIG. 14 (b) is a bottom view, and FIG. 14 (c) is a perspective view. It is a figure which shows the housing of the receptacle connector. 15 (a) is a plan view, FIG. 15 (b) is a bottom view, and FIG. 15 (c) is a perspective view. It is a perspective view which shows the receptacle connector before press-fitting and fixing. It is a figure which shows the mating state of a plug connector and a receptacle connector. 17 (a) is a plan view, and FIG. 17 (b) is a cross-sectional view taken along the line BB of FIG. 17 (a).

Hereinafter, the embodiment will be described in detail with reference to the drawings. In the description, the same elements or elements having the same function are designated by the same reference numerals, and duplicate description will be omitted.

[First Embodiment]
An outline of the connector device 1 according to the first embodiment will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, the connector device 1 includes a receptacle connector 10 (electric connector 10) and a plug connector 100. The receptacle connector 10 is mounted on the substrate 200 (see FIG. 2), for example, by soldering or the like. The plug connector 100 is connected to the coaxial cable SC (signal transmission member) and fitted to the receptacle connector 10. In the connector device 1, the plug connector 100 attached to the end of the coaxial cable SC is fitted with the receptacle connector 10 mounted on the substrate 200 to electrically connect the coaxial cable SC and the electric circuit of the substrate 200. Connecting. The substrate 200 is, for example, a printed circuit board, but is not limited thereto. Further, instead of the coaxial cable SC, another signal transmission member that transmits signals of various electronic devices may be used.

In the following description, the mating direction of the receptacle connector 10 and the plug connector 100 in the connector device 1 is "Z direction", and the axial direction of the coaxial cable SC in the mated state is "X direction", orthogonal to the Z direction and the X direction. The direction to be used may be described as "Y direction". Further, with respect to the Z direction, for example, the direction in which the plug connector 100 is located as shown in FIG. 1 may be described as “up”, and the direction in which the receptacle connector 10 is located may be described as “down”. Further, with respect to the X direction, the direction in which the end portion of the coaxial cable SC to which the plug connector 100 is attached may be described as "front", and the direction in which the opposite end portion is located may be described as "rear".

Next, the details of the receptacle connector 10 in the first embodiment will be described with reference to FIGS. 3 to 8. As shown in FIGS. 3A to 3C, the receptacle connector 10 includes a signal contact 11, a ground contact 12, and a housing 13. In the first embodiment, the ground contact 12 and the housing 13 are formed separately.

The signal contact 11 is attached so as to be surrounded by the housing 13. The signal contact 11 is also located in the center of the receptacle connector 10. The ground contact 12 is arranged so as to surround the signal contact 11 and the housing 13.

As shown in FIGS. 4 (a) and 4 (b), the signal contact 11 is a cylindrical conductor. The signal contact 11 is formed of, for example, a thin plate-shaped metal member. The signal contact 11 is electrically connected to the signal contact 101 of the plug connector 100 (see FIG. 8 (b)).

The signal contact 11 has a contact portion 111 extending in a direction away from the substrate 200 (upward) and a terminal portion 112 extending along the substrate 200 so as to be pulled out from the lower end of the contact portion 111.

The contact portion 111 is formed in a cylindrical shape with the Z direction as the axial direction. The outer peripheral surface of the contact portion 111 contacts the signal contact 101 of the plug connector 100 (see FIG. 8B).

The terminal portion 112 is formed in a rectangular shape. For example, the terminal portion 112 is formed so that the length in the Y direction when viewed from the Z direction is shorter than the length in the X direction. The terminal portion 112 is continuous with the lower end of the contact portion 111 and extends forward in the X direction (direction away from the inner conductor SC1 of the coaxial cable SC (see FIG. 8B)), and the signal terminal portion of the substrate 200 (not). Connected to (shown).

Returning to FIG. 3A, the terminal portion 112 is housed in the area surrounded by the ground contact 12. The terminal portion 112 also has an exposed portion 11x, which is a tip region, exposed to the outside. Exposed to the outside means, for example, that it is visible from the outside. More specifically, when the receptacle connector 10 is viewed in a plan view, the exposed portion 11x is visibly arranged. The exposed portion 11x is a contact region of the terminal portion 112 with the signal terminal portion (not shown).

As shown in FIGS. 5 (a) to 5 (c), the ground contact 12 is a conductor having a rectangular shape and a cylinder arranged in the center of one side of a plate. When the ground contact 12 is viewed in a plan view, the central region of the ground contact 12 is hollowed out in a substantially circular shape. The ground contact 12 is electrically connected to the ground contact 102 of the plug connector 100 (see FIG. 8B).

The ground contact 12 is integrally formed with the standing wall portion 121 that seamlessly surrounds the periphery of the contact portion 111 and the standing wall portion 121, extends outward along the substrate 200, and seamlessly surrounds the surrounding of the standing wall portion 121. It has a board connecting portion 122 that surrounds it. Further, the ground contact 12 has a protruding locking portion 123 that projects toward the region surrounded by the vertical wall portion 121 and locks the housing 13 with respect to the ground contact 12.

The standing wall portion 121 is formed in a cylindrical shape with the Z direction as the axial direction. The vertical wall portion 121 accommodates the housing 13 in the tubular hole. The standing wall portion 121 seamlessly surrounds the contact portion 111 of the signal contact 11 by seamlessly surrounding the periphery of the housing 13. On the outer peripheral surface 121a of the vertical wall portion 121, a fitting recess 12x recessed toward the center in the axial direction of the vertical wall portion 121 is formed over the entire circumference thereof. The fitting recess 12x is fitted with the fitting protrusion 102x formed on the outer periphery of the ground contact 102 of the plug connector 100 (see FIG. 8B). The inner peripheral surface 121b of the vertical wall portion 121 is in contact with the outer peripheral surface 13a of the housing 13 described later, except for the region where the housing 13 is not formed (see FIG. 8B).

The standing wall portion 121 is formed with a tip portion 121c which is an end portion (upper end portion) in a direction away from the substrate 200. The end portion here does not refer only to the tip, but includes a region in the vicinity of the tip. The tip portion 121c of the standing wall portion 121 is formed so as to bend toward the region surrounded by the standing wall portion 121. The tip portion 121c is in contact with the contact portion 132b of the housing 13, which will be described later, in the region closer to the inner peripheral surface 121b. By contacting in this way, the tip portion 121c assists the movement of the housing 13 in the upward direction.

The board connecting portion 122 is formed in a plate shape, is continuous with the lower end of the standing wall portion 121, and extends radially outward along the substrate 200 to seamlessly surround the surrounding of the standing wall portion 121. The board connection portion 122 is arranged on the substrate 200 (see FIG. 2) and is connected to the ground terminal portion (not shown) of the substrate 200.

In the ground contact 12, the vertical wall portion 121 and the substrate connecting portion 122 are integrally formed by drawing. For example, in the ground contact 12, the metal plate is drawn (for example, cylindrical drawing) so that the vertical wall portion 121, which is a side surface portion, and the substrate connecting portion 122, which is a flange portion, are integrally formed. .. Since the ground contact 12 is formed by drawing, no seam is formed on the vertical wall portion 121 and the substrate connecting portion 122. Further, the vertical wall portion 121 is continuously formed on the substrate connecting portion 122 so as to stand upright from the substrate connecting portion 122.

The locking portion 123 is a protrusion protruding toward the region surrounded by the standing wall portion 121. For example, the locking portion 123 projects from the tip portion 121c, which is the end portion of the standing wall portion 121 in the direction away from the substrate 200, toward the region surrounded by the standing wall portion 121. The locking portion 123 is continuously formed on the tip portion 121c and integrally with the tip portion 121c. By being locked to the housing 13, the locking portion 123 suppresses the movement (for example, rotation) of the housing 13 along the inner peripheral surface 121b of the vertical wall portion 121. A pair of locking portions 123 are also provided so as to face each other with the contact portion 111 interposed therebetween. That is, a pair of locking portions 123 are provided so as to project toward the center of the receptacle connector 10. Two or more pairs of locking portions 123 may be provided as in the present embodiment.

As shown in FIGS. 6 (a) to 6 (c), the housing 13 is an insulating member formed in a semi-cylindrical shape having a bottom surface whose axial direction is the Z direction. The housing 13 is made of, for example, a resin. For example, in the present embodiment, the housing 13 is integrally formed with the signal contact 11 by insert molding. Therefore, FIGS. 4 (a), 4 (b), and 6 (a) to 6 (c) show the signal contact 11 and the housing 13 before being integrated.

The housing 13 is arranged between the signal contact 11 and the ground contact 12, and holds the signal contact 11 and the ground contact 12. The housing 13 is arranged so as to surround a part of the signal contact 11 and to be surrounded by the standing wall portion 121 of the ground contact 12. The outer peripheral surface 13a of the housing 13 is in contact with the inner peripheral surface 121b of the vertical wall portion 121 except for the region where the housing 13 is not formed (see FIG. 8B).

The housing 13 has a base 131, a columnar portion 132, and a press-fitting portion 133. The base 131 is formed in a semicircular shape and is arranged at one end of the housing 13. The base 131 has a top surface 131a facing the plug connector 100 and a bottom surface 131b facing the substrate 200. A support portion 13y, which is a hole for attaching the contact portion 111, is formed in the base portion 131 from the center of the upper surface 131a to the center of the bottom surface 131b.

The columnar portion 132 is formed in a semi-cylindrical shape, and is continuously formed on the base portion 131 so as to stand upright from the base portion 131. The columnar portion 132 extends in the Z direction along the inner peripheral surface 121b of the vertical wall portion 121. The tip (upper end) of the columnar portion 132 may have a shape that reaches the tip portion 121c of the vertical wall portion 121, or has a shape that does not reach the tip portion 121c (extends only below the tip portion 121c). May be good. The tip of the columnar portion 132 is formed so as not to exceed the tip portion 121c of the vertical wall portion 121 in the direction away from the substrate 200 (upward direction) (see FIG. 3C).

The housing 13 is formed with a recess 132a that is locked to the locking portion 123. More specifically, the columnar portion 132 is formed with a recess 132a that is locked to the locking portion 123. For example, a plurality of recesses 132a are formed at the upper end of the columnar portion 132 at predetermined intervals along the circumferential direction of the columnar portion 132. The recess 132a is formed so as to be recessed from the upper end of the columnar portion 132 toward the substrate 200 so as to correspond to the shape of the locking portion 123. The recess 132a is also formed at a position corresponding to the locking portion 123, except for a region where the housing 13 is not formed.

The columnar portion 132 is formed with a contact portion 132b in contact with a region closer to the inner peripheral surface 121b of the tip portion 121c of the vertical wall portion 121. For example, the contact portion 132b is formed in a stepped shape at the upper end portion over the entire circumference of the region where the housing 13 is formed, corresponding to the region of the vertical wall portion 121 near the inner peripheral surface 121b of the tip portion 121c. Has been done. When the abutting portion 132b comes into contact with the tip portion 121c, the movement of the housing 13 in the upward direction is assistedly suppressed.

The press-fitting portion 133 is a convex surface facing the inner peripheral surface 121b of the vertical wall portion 121. As shown in FIG. 7, the housing 13 is formed separately from the ground contact 12. The housing 13 is inserted into the area surrounded by the vertical wall portion 121 and is press-fitted and fixed to the ground contact 12. Here, the press-fitting portion 133 presses the inner peripheral surface 121b of the vertical wall portion 121 to fix the ground contact 12 and the housing 13. By being fixed in this way, it is possible to prevent the housing 13 from falling off from the ground contact 12. A plurality (for example, four) of the press-fitting portions 133 are provided on the outer peripheral surface 13a of the housing 13.

Returning to FIG. 3A, the housing 13 is provided only in the area surrounded by the vertical wall portion 121. When the receptacle connector 10 is viewed in a plan view, the housing 13 is provided only in the region closer to the contact portion 111 than the tip of the terminal portion 112 in the extending direction of the terminal portion 112. The housing 13 is formed so as to expose the exposed portion 11x of the signal contact 11 to the outside. The housing 13 may be formed so as to expose the exposed portion 11x to the outside by, for example, having a structure in which a part is cut out.

In the receptacle connector 10, the signal contact 11 is seamlessly surrounded by the ground contact 12. In other words, the receptacle connector 10 has a structure in which the periphery of the signal contact 11 is completely closed. Such a receptacle connector 10 has a configuration in which a signal from the signal contact 11 is less likely to leak to the outside of the ground contact 12 (a configuration in which noise is less likely to occur).

[Mating state of receptacle connector and plug connector]
Next, the connector device 1 in a state where the receptacle connector 10 and the plug connector 100 are fitted to each other will be described with reference to FIGS. 8 (a) and 8 (b). 8 (a) is a plan view, and FIG. 8 (b) is a cross-sectional view taken along the line AA of FIG. 8 (a). As shown in FIG. 8B, the plug connector 100 includes a signal contact 101, a ground contact 102, and a housing 103.

The signal contact 101 is electrically connected to the signal contact 11 of the receptacle connector 10. The signal contact 101 is mounted inside the housing 103. The signal contact 101 is also connected to the inner conductor SC1 of the coaxial cable SC and to the contact portion 111 of the signal contact 11.

The ground contact 102 extends along the X direction. One of the gland contacts 102 in the extending direction is formed in a cylindrical shape fitted to the gland contact 12 of the receptacle connector 10. The other side of the ground contact 102 in the extending direction is connected to the outer conductor of the coaxial cable SC. In the region of the ground contact 102 near the lower end of the cylindrical shape, a fitting convex portion 102x protruding toward the center in the radial direction is formed over the entire circumference thereof.

The housing 103 is formed in a cylindrical shape and holds the signal contact 101 and the ground contact 102 in an insulated state. The outer peripheral surface of the housing 103 is in contact with the inner peripheral surface of the ground contact 102.

The fitting recess 12x in the vertical wall portion 121 of the receptacle connector 10 and the fitting convex portion 102x in the ground contact 102 of the plug connector 100 engage with each other. As a result, the receptacle connector 10 and the plug connector 100 are in a state of being fitted to each other. In the mated state, the terminal portion 112 is housed in the area surrounded by the ground contact 102 of the plug connector 100.

In the fitted state, the signal contact 101 connected to the internal conductor SC1 of the coaxial cable SC is in contact with the contact portion 111 of the receptacle connector 10. The contact portion 111 is connected to the signal terminal portion (not shown) of the substrate 200 via the terminal portion 112. As a result, the signal transmission circuit of the connector device 1 is configured.

Further, in the fitted state, the ground contact 102 connected to the outer conductor of the coaxial cable SC is in contact with the vertical wall portion 121 of the receptacle connector 10. The vertical wall portion 121 is connected to the ground terminal portion (not shown) of the substrate 200 via the substrate connecting portion 122. As a result, the ground circuit of the connector device 1 is configured.

[Effect of this embodiment]
Next, the operation and effect of the above-mentioned receptacle connector 10 (electrical connector 10) will be described.

The electric connector 10 according to the present embodiment is an electric connector 10 mounted on the substrate 200, and is a contact portion 111 extending in a direction away from the substrate 200 and along the substrate 200 so as to be pulled out from the contact portion 111. The signal contact 11 having the extending terminal portion 112, the standing wall portion 121 seamlessly surrounding the contact portion 111, and the standing wall portion 121 are integrally formed, and extend outward along the substrate 200 to form the standing wall portion. An insulating housing 13 arranged between the signal contact 11 and the ground contact 12 and having a board connecting portion 122 that seamlessly surrounds the circumference of the 121 and holds the signal contact 11 and the ground contact 12. And.

In the electric connector 10 according to the present embodiment, the contact portion 111 of the signal contact 11 is seamlessly surrounded by the vertical wall portion 121 of the ground contact 12 in the direction away from the substrate 200. Further, in the direction along the substrate 200, the periphery of the vertical wall portion 121 is seamlessly surrounded by the substrate connecting portion 122 of the ground contact 12. Further, an insulating housing 13 is interposed between the signal contact 11 and the ground contact 12. According to such a configuration, since the signal contact 11 is seamlessly surrounded by the ground contact 12, the signal from the signal contact 11 is less likely to leak to the outside of the ground contact 12 (a configuration in which noise is less likely to occur). This makes it possible to improve the EMI characteristics of the electric connector.

In the electric connector 10 according to the present embodiment, the housing 13 has a columnar portion 132 extending along the inner peripheral surface 121b of the vertical wall portion 121. According to such a configuration, the contact area between the housing 13 and the standing wall portion 121 is increased. As a result, the housing 13 can more preferably hold the signal contact 11 and the ground contact 12.

In the electric connector 10 according to the present embodiment, the ground contact 12 has a protruding locking portion 123 that projects toward the area surrounded by the vertical wall portion 121 and locks the housing 13 to the ground contact 12. According to such a configuration, the vertical wall portion 121 and the columnar portion 132 extending along the inner peripheral surface 121b of the vertical wall portion 121 are engaged with each other by the locking portion 123 protruding from the region surrounded by the vertical wall portion 121. To. As a result, the housing 13 is prevented from falling off, so that the housing 13 can be held more preferably.

In the electric connector 10 according to the present embodiment, the locking portion 123 projects from the tip portion 121c, which is the end portion of the vertical wall portion 121 in the direction away from the substrate 200, toward the region surrounded by the vertical wall portion 121, and is a housing. A recess 132a to be locked to the locking portion 123 is formed in 13. By fitting the protruding locking portion 123 to the recess 132a formed in the columnar portion 132, the movement (for example, rotation) of the housing 13 along the inner peripheral surface 121b of the vertical wall portion 121 is further suppressed. .. This makes it possible to hold the housing 13 more preferably.

In the electric connector 10 according to the present embodiment, the tip portion 121c of the standing wall portion 121 is formed so as to bend toward the region surrounded by the standing wall portion 121. According to such a configuration, in the region surrounded by the vertical wall portion 121, the housing 13 along the inner peripheral surface 121b comes into contact with the tip portion 121c, so that the movement of the housing 13 in the direction away from the substrate 200 is assisted. Is suppressed. This makes it possible to hold the housing 13 more preferably.

In the electric connector 10 according to the present embodiment, a pair of locking portions 123 are provided so as to face each other with the contact portion 111 interposed therebetween. Since the pair of locking portions 123 face each other around the contact portion 111, the movement of the housing 13 is suppressed in a well-balanced manner, so that the housing 13 can be held more preferably.

In the electric connector 10 according to the present embodiment, the ground contact 12 and the housing 13 are formed separately, and the housing 13 has a press-fitting portion having a convex surface facing the inner peripheral surface 121b of the vertical wall portion 121. Since the ground contact 12 and the housing 13 are formed separately, it is possible to manufacture an electric connector by an assembly method, so that the manufacturing equipment can be simplified. Further, since the press-fitting portion having a convex surface presses the inner peripheral surface 121b of the vertical wall portion 121 of the ground contact 12, the fixing strength of the housing 13 is further increased, so that the housing 13 can be held more preferably.

In the electric connector 10 according to the present embodiment, the ground contact 12 has a vertical wall portion 121 and a substrate connecting portion 122 integrally formed by drawing. By drawing, the vertical wall portion 121 of the ground contact 12 and the substrate connecting portion 122 are integrally formed, and no seam is formed between the vertical wall portion 121 and the substrate connecting portion 122. This makes it possible to improve the ease of manufacturing the ground contact 12.

[Second Embodiment]
With reference to FIG. 9, the details of the receptacle connector 20 (electrical connector 20) in the second embodiment will be mainly described as different from the receptacle connector 10 (first embodiment). As shown in FIGS. 9 (a) to 9 (c), the receptacle connector 20 includes a signal contact 11, a ground contact 12, and a housing 13. In the receptacle connector 20, the signal contact 11, the ground contact 12, and the housing 13 are integrally formed by insert molding.

The locking portion 123 has a tapered shape in which the thickness gradually decreases toward the contact portion 111 (that is, the region closer to the contact portion 111 in the locking portion 123 becomes tapered).

The housing 13 is integrally formed with the ground contact 12 by insert molding so as to include the periphery of the locking portion 123. For example, the housing 13 is filled along the inner peripheral surface 121b of the vertical wall portion 121 to form the columnar portion 132. The housing 13 is also filled along the periphery of the tapered locking portion 123, and the columnar portion 132 and the locking portion 123 are fixed. The tip of the locking portion 123 may or may not reach the inner peripheral surface of the columnar portion 132 of the housing 13 (may penetrate the columnar portion 132).

[Effect of this embodiment]
In the electric connector 20 according to the present embodiment, the housing 13 is integrally formed with the ground contact 12 by insert molding so as to include the periphery of the locking portion 123. By fixing the columnar portion 132 and the locking portion 123, the housing 13 can be more preferably held.

[Third Embodiment]
An outline of the connector device 3 according to the third embodiment will be described with reference to FIGS. 10 and 11. As shown in FIG. 10, the connector device 3 includes a receptacle connector 30 (electric connector 30) and a plug connector 300. Hereinafter, the details of the connector device 3 will be mainly described as being different from the connector device 1 (first embodiment).

The connector device 3 is a multi-core connector having a plurality of connection terminals. The plug connector 300 is connected to a plurality of coaxial cables SC (signal transmission members). When the receptacle connector 30 and the plug connector 300 are fitted to each other, the shape of the plug connector 300 seen from the receptacle connector 30 and the shape of the receptacle connector 30 seen from the plug connector 300 both approximate a rectangle. There is. Hereinafter, the direction along the long side of this rectangle (Y direction) is referred to as the long side direction, and the direction along the short side of this rectangle (X direction) is referred to as the short side direction.

Next, the details of the receptacle connector 30 in the third embodiment will be described with reference to FIGS. 12 to 17. As shown in FIGS. 12 (a) to 12 (c), the receptacle connector 30 includes a signal contact 31, a ground contact 32, and a housing 33.

The signal contact 31 is attached so as to be surrounded by the housing 33. A plurality (for example, three) of signal contacts 31 are provided. As for the signal contact 31, for example, one signal contact 31 is arranged in the center of the receptacle connector 30, and two signal contacts 31 are arranged along the long side direction so as to sandwich the central signal contact 31. All the signal contacts 31 are arranged so that the contact directions seen from the plug connector 300 are in the same direction.

As shown in FIGS. 13 (a) and 13 (b), the signal contact 31 is a conductor having a pair of protrusion shapes. The protrusions of the signal contact 31 are each protruding along the Z direction. In the signal contact 31, the connection portion with the substrate 200 and the contact portion with the signal contact 301 of the plug connector 300 are connected to each other. The signal contact 31 is formed, for example, by bending a metal plate or the like.

The signal contact 31 has a contact portion 311 extending in a direction away from the substrate 200 (upward) and a terminal portion 312 extending along the substrate 200 so as to be pulled out from the lower end of the contact portion 311.

The contact portion 311 has a first portion 311a, a second portion 311b, and a connecting portion 311c. The first portion 311a and the second portion 311b each project toward the plug connector 300 along the Z direction. The first portion 311a and the second portion 311b extend along the connection direction so as to face each other in the short side direction. The first portion 311a and the second portion 311b each come into contact with each other so as to sandwich the signal contact 301 of the plug connector 300 (see FIG. 17B). The connecting portion 311c connects the lower end of the first portion 311a and the lower end of the second portion 311b.

The terminal portion 312 is formed in a rectangular shape. For example, the terminal portion 312 is formed so that the length in the Y direction when viewed from the Z direction is shorter than the length in the X direction. The terminal portion 312 is continuous with the lower end of the contact portion 311 and extends forward in the X direction (direction away from the inner conductor SC1 of the coaxial cable SC (see FIG. 17B)), and the signal terminal portion of the substrate 200 (not). Connected to (shown).

Returning to FIG. 12A, the terminal portion 312 is housed in the area surrounded by the ground contact 32. The terminal portion 312 also has an exposed portion 31x, which is a tip region, exposed to the outside. The exposed portion 31x is a contact region of the terminal portion 312 with the signal terminal portion (not shown).

As shown in FIGS. 14 (a) to 14 (c), the ground contact 32 is a conductor having a rectangular plate-like shape in which a square tube is arranged in the center of one side. When the ground contact 32 is viewed in a plan view, the central region of the ground contact 32 is hollowed out in a rectangular shape. The ground contact 32 is electrically connected to the ground contact 302 of the plug connector 300 (see FIG. 17B). The ground contact 32 has a pair of long sides in the long side direction and a pair of short sides in the short side direction.

The ground contact 32 is integrally formed with a standing wall portion 321 that seamlessly surrounds the periphery of the contact portion 311 and a standing wall portion 321 that extends outward along the substrate 200 and seamlessly surrounds the surrounding of the standing wall portion 321. It has a board connecting portion 322 that surrounds it. Further, the ground contact 32 has a protruding locking portion 323 that projects toward the region surrounded by the vertical wall portion 321 and locks the housing 33 to the ground contact 32.

The standing wall portion 321 is formed in a square tube shape with the Z direction as the axial direction. The vertical wall portion 321 accommodates the housing 33 in the tubular hole. The vertical wall portion 321 seamlessly surrounds the contact portion 311 of the signal contact 31 by seamlessly surrounding the periphery of the housing 33. On the outer peripheral surface 321a of the vertical wall portion 321, a fitting recess 32x recessed toward the center in the axial direction of the vertical wall portion 321 is formed over the entire circumference thereof. The fitting recess 32x is fitted with the fitting protrusion 302x formed on the outer periphery of the ground contact 302 of the plug connector 300 (see FIG. 17B). The inner peripheral surface 321b of the vertical wall portion 321 is in contact with the outer peripheral surface 33a of the housing 33, which will be described later, except for the region where the housing 33 is not formed (see FIG. 17B).

The standing wall portion 321 is formed with a tip portion 321c which is an end portion (upper end portion) in a direction away from the substrate 200. The end portion here does not refer only to the tip, but includes a region in the vicinity of the tip. The tip portion 321c of the standing wall portion 321 is formed so as to bend toward the region surrounded by the standing wall portion 321. The tip portion 321c is in contact with the contact portion 332b of the housing 33, which will be described later, in the region near the inner peripheral surface 321b. By contacting in this way, the tip portion 321c assists the movement of the housing 33 in the upward direction.

The board connection portion 322 is formed in a plate shape, is continuous with the lower end of the vertical wall portion 321 and extends radially outward along the substrate 200 to seamlessly surround the periphery of the vertical wall portion 321. The board connection portion 322 is arranged on the board 200 (see FIG. 11) and is connected to the ground terminal portion (not shown) of the board 200.

In the ground contact 32, the vertical wall portion 321 and the substrate connecting portion 322 are integrally formed by drawing. For example, in the ground contact 32, a metal plate is drawn (for example, square cylinder drawing) so that a vertical wall portion 321 which is a side surface portion and a substrate connecting portion 322 which is a flange portion are integrally formed. There is. Since the ground contact 32 is formed by drawing, no seam is formed on the vertical wall portion 321 and the substrate connecting portion 322. Further, the vertical wall portion 321 is continuously formed on the substrate connecting portion 322 so as to stand upright from the substrate connecting portion 322.

The locking portion 323 is a protrusion protruding toward the region surrounded by the standing wall portion 321. For example, the locking portion 323 projects from the tip portion 321c, which is the end portion of the standing wall portion 321 in the direction away from the substrate 200, toward the region surrounded by the standing wall portion 321. The locking portion 323 is continuously formed on the tip portion 321c and integrally with the tip portion 321c. By being locked to the housing 33, the locking portion 323 suppresses the movement of the housing 33 along the inner peripheral surface 321b of the vertical wall portion 321. A pair of locking portions 323 are also provided so as to face each other with the contact portion 311 interposed therebetween. That is, a pair of locking portions 123 are provided so as to project toward the center of the receptacle connector 10. Two or more pairs of locking portions 323 may be provided.

As shown in FIGS. 15 (a) to 15 (c), the housing 33 is an insulating member formed in a rectangular shape. The housing 33 is made of, for example, a resin. In the present embodiment, the housing 33 and the signal contact 31 are manufactured by an assembly method. For example, the housing 33 and the signal contact 31 may be integrally formed by insert molding.

The housing 33 is arranged between the signal contact 31 and the ground contact 32, and holds the signal contact 31 and the ground contact 32. The housing 33 is arranged so as to surround a part of the signal contact 31 and to be surrounded by the vertical wall portion 321 of the ground contact 32. The outer peripheral surface 33a of the housing 33 is in contact with the inner peripheral surface 321b of the vertical wall portion 321 except for the region where the housing 33 is not formed (see FIG. 17B).

The housing 33 has a base portion 331, a columnar portion 332, and a press-fitting portion 333. The base 331 is rectangular and is located in the center of the housing 33. The base portion 331 has a top surface 331a facing the plug connector 300 and a bottom surface 331b facing the substrate 200. The base portion 331 is formed with a support portion 33y which is a hole for attaching the contact portion 311 along the long side direction from the upper surface 331a to the bottom surface 331b. The support portions 33y are formed at positions corresponding to the positions where the signal contacts 31 are arranged, as many as the number corresponding to the number of signal contacts 31 (that is, three). In the present embodiment, three signal contacts 31 are formed, one of which may be a ground contact 32, and the ground contact 32 may be appropriately provided depending on the number of signal contacts 31.

The columnar portion 332 is formed in a square cylinder shape, and is continuously formed on the base portion 331 so as to surround the outer periphery of the base portion 331. The columnar portion 332 extends in the Z direction along the inner peripheral surface 321b of the vertical wall portion 321. The tip (upper end) of the columnar portion 332 may have a shape that reaches the tip portion 321c of the vertical wall portion 321 or a shape that does not reach the tip portion 321c (extends only below the tip portion 121c). May be good. The tip of the columnar portion 332 is formed so as not to exceed the tip portion 321c of the vertical wall portion 321 in the direction away from the substrate 200 (upward direction) (see FIG. 12 (c)).

The housing 33 is formed with a recess 332a that is locked to the locking portion 323. More specifically, the columnar portion 332 is formed with a recess 332a that is locked to the locking portion 323. For example, a plurality of recesses 332a are formed at the upper end of the columnar portion 332 at predetermined intervals along the circumferential direction of the columnar portion 332. The recess 332a is formed so as to be recessed from the upper end portion of the columnar portion 332 toward the substrate 200 so as to correspond to the shape of the locking portion 323. The recess 332a is also formed at a position corresponding to the locking portion 323, except for the region where the housing 33 is not formed.

The columnar portion 332 is formed with a contact portion 332b in contact with a region closer to the inner peripheral surface 321b of the tip portion 321c of the vertical wall portion 321. For example, the contact portion 332b is formed in a stepped shape at the upper end portion over the entire circumference of the region where the housing 33 is formed, corresponding to the region of the tip portion 321c of the vertical wall portion 321 near the inner peripheral surface 321b. Has been done. When the abutting portion 332b comes into contact with the tip portion 321c, the movement of the housing 33 in the upward direction is assistedly suppressed.

The press-fitting portion 333 is a convex surface facing the inner peripheral surface 321b of the vertical wall portion 321. As shown in FIG. 16, the housing 33 is formed separately from the ground contact 32. The housing 33 is inserted into the area surrounded by the vertical wall portion 321 and is press-fitted and fixed to the ground contact 32. Here, the press-fitting portion 333 presses the inner peripheral surface 321b of the standing wall portion 321 to fix the ground contact 32 and the housing 33. By being fixed in this way, it is possible to prevent the housing 33 from falling off from the ground contact 32. A plurality of press-fitting portions 333 (for example, four corresponding to the four corners of the housing 33) are provided on the outer peripheral surface 33a of the housing 33.

Returning to FIG. 12 (a), the housing 33 is provided only in the area surrounded by the vertical wall portion 321. When the receptacle connector 30 is viewed in a plan view, the housing 33 is provided only in the region closer to the contact portion 311 than the tip of the terminal portion 312 in the extending direction of the terminal portion 312. The housing 33 is formed so as to expose the exposed portion 31x of the signal contact 31 to the outside. The housing 33 may be formed so as to expose the exposed portion 31x to the outside by, for example, having a structure in which a part is cut out. Since the exposed portion 31x of the signal contact 31 is exposed to the outside in such a plan view, the connection between the signal contact 31 and the substrate 200 can be visually recognized when the receptacle connector 30 is mounted on the substrate 200.

In the receptacle connector 30, the signal contact 31 is seamlessly surrounded by the ground contact 32. In other words, the receptacle connector 30 has a structure in which the periphery of the signal contact 31 is completely closed. Such a receptacle connector 30 has a configuration in which a signal from the signal contact 31 is less likely to leak to the outside of the ground contact 32 (a configuration in which noise is less likely to occur).

[Mating state of receptacle connector and plug connector]
Next, the connector device 3 in a state where the receptacle connector 30 and the plug connector 300 are fitted to each other will be described with reference to FIGS. 17 (a) and 17 (b). 17 (a) is a plan view, and FIG. 17 (b) is a cross-sectional view taken along the line AA of FIG. 17 (a). As shown in FIG. 17B, the plug connector 300 includes a signal contact 301, a ground contact 302, and a housing 303.

The signal contact 301 is electrically connected to the signal contact 31 of the receptacle connector 30. The signal contact 301 is mounted inside the housing 303. The signal contact 301 is also connected to the inner conductor SC1 of the coaxial cable SC and is connected so as to be sandwiched between the contact portions 311 of the signal contact 31.

The ground contact 302 extends along the X direction. One of the gland contacts 302 in the extending direction is formed in a square tube shape to be fitted to the gland contact 32 of the receptacle connector 30. The other side of the ground contact 302 in the extending direction is connected to the outer conductor of the coaxial cable SC. In the region of the ground contact 302 near the lower end of the square tube shape, a fitting convex portion 302x is formed that protrudes toward the radial center) over the entire circumference thereof.

The housing 303 is formed in the shape of a square cylinder, and holds the signal contact 301 and the ground contact 302 in an insulated state. The outer peripheral surface of the housing 303 is in contact with the inner peripheral surface of the ground contact 302.

The fitting concave portion 32x in the vertical wall portion 321 of the receptacle connector 30 and the fitting convex portion 302x in the ground contact 302 of the plug connector 300 are engaged with each other. As a result, the receptacle connector 30 and the plug connector 300 are in a state of being fitted to each other. In the fitted state, the terminal portion 312 is housed in the area surrounded by the ground contact 302 of the plug connector 300.

In the fitted state, the signal contact 301 connected to the internal conductor SC1 of the coaxial cable SC is in contact with the contact portion 311 of the receptacle connector 30. The contact portion 311 is connected to the signal terminal portion (not shown) of the substrate 200 via the terminal portion 312. As a result, the signal transmission circuit of the connector device 3 is configured.

Further, in the fitted state, the ground contact 302 connected to the outer conductor of the coaxial cable SC is in contact with the vertical wall portion 321 of the receptacle connector 30. The vertical wall portion 321 is connected to the ground terminal portion (not shown) of the substrate 200 via the substrate connecting portion 322. As a result, the ground circuit of the connector device 3 is configured. The plug connector 300, which is the mating connector in the third embodiment, is connected to the coaxial cable SC, but is a mating connector to which another board to which a flexible substrate (FPC) is connected is connected, for example. Is also good.

Although the embodiments have been described above, the present disclosure is not necessarily limited to the above-described embodiments, and various changes can be made without departing from the gist thereof.

10 ... Receptacle connector (electric connector), 11 ... Signal contact, 111 ... Contact part, 112 ... Terminal part, 121 ... Stand wall part, 122 ... Board connection part, 12 ... Ground contact, 13 ... Housing, 20 ... Receptacle connector (electric) Connector), 200 ... Board, 30 ... Receptacle connector (electric connector), 31 ... Signal contact, 311 ... Contact part, 312 ... Terminal part, 321 ... Standing wall part, 322 ... Board connection part, 32 ... Ground contact, 33 ... Housing ..

Claims

An electrical connector mounted on a board
A signal contact having a contact portion extending in a direction away from the substrate and a terminal portion extending along the substrate so as to be pulled out from the contact portion.
It has a vertical wall portion that seamlessly surrounds the periphery of the contact portion, and a substrate connection portion that is integrally formed with the vertical wall portion and extends outward along the substrate and seamlessly surrounds the periphery of the vertical wall portion. With ground contact,
An insulating housing that is located between the signal contact and the ground contact and holds the signal contact and the ground contact.
Electrical connector with.
The electric connector according to claim 1, wherein the housing has a columnar portion extending along an inner peripheral surface of the vertical wall portion.
The electric connector according to claim 1 or 2, wherein the ground contact protrudes toward an area surrounded by the vertical wall portion and has a protruding locking portion for locking the housing to the ground contact.
The locking portion projects from the tip end portion of the standing wall portion, which is the end portion in the direction away from the substrate, toward the region surrounded by the standing wall portion.
The housing is formed with a recess that is locked to the locking portion.
The electric connector according to claim 3.
The electric connector according to claim 4, wherein the tip portion of the standing wall portion is formed so as to bend toward an area surrounded by the standing wall portion.
The electric connector according to any one of claims 3 to 5, wherein the locking portions are provided in pairs so as to face each other with the contact portion interposed therebetween.
The ground contact and the housing are formed separately and are formed separately.
The electric connector according to any one of claims 2 to 6, wherein the housing has a press-fitting portion having a convex surface facing the inner peripheral surface of the standing wall portion.
The electric connector according to claim 3, wherein the housing is integrally formed with the ground contact by insert molding so as to include the periphery of the locking portion.
The electric connector according to any one of claims 1 to 8, wherein the ground contact is integrally formed with the vertical wall portion and the substrate connecting portion by drawing.