JP2021068536A - Electric connector and electronic device - Google Patents

Abstract

To provide an electrical connector capable of suppressing crosstalk caused by two contacts for transmitting a differential signal, and an electronic device including the electrical connector.SOLUTION: An electrical connector 1 includes contact groups 21U and 21L each including a plurality of contacts 21 arranged on a contact plane, and a ground plate 22 arranged on a ground plane facing the contact plane. The contact groups 21U and 21L include a signal contact pair CP1 for transmitting differential signals. Each of two contacts 21A constituting the signal contact pair CP1 has a narrow pitch portion 216 that approaches from one contact to the other contact. The clearance between the narrow pitch portions 216 of the two contacts 21A constituting the signal contact pair CP1 is smaller than the clearance between the other portions of the two contacts 21A.SELECTED DRAWING: Figure 9

Description

The present invention generally relates to an electrical connector and an electronic device containing the electrical connector, and more specifically, to suppress crosstalk by two contacts for transmitting a differential signal, one of the two contacts. The present invention relates to an electric connector including two contacts having a narrow pitch portion approaching from one to the other and an electronic device including the electric connector.

Conventionally, an electric connector has been used to electrically connect an electronic device to another electronic device. In order to obtain an electrical connection between an electronic device and another electronic device, it is mounted on a circuit board provided in the housing of the electronic device, and an insertion port is provided through a through hole provided in the housing of the electronic device. Two types of electrical connectors are used in combination: a receptacle connector exposed to the outside of the electronic device and a plug connector inserted into the socket of the receptacle connector.

Further, with the recent miniaturization of electronic devices, there is an increasing demand for miniaturization of electric connectors. In response to the demand for miniaturization of such electric connectors, a USB Type-C standard has been proposed (see Patent Document 1 and Patent Document 2). The electrical connector that conforms to the USB Type-C standard adopts a vertically symmetrical design, and it is possible to insert the plug connector into the receptacle connector regardless of the vertical orientation of the connector.

For example, FIG. 1 discloses a conventional electrical connector 800 that complies with the USB Type-C standard. The electrical connector 800 includes a metal shell 810 and an internal structure 820 housed inside the shell 810. As shown in FIG. 2, the internal structure 820 is arranged on a second contact plane with a first contact group 830U composed of a plurality of contacts 830 arranged on the first contact plane. A second contact group 830L composed of a plurality of contact 830s formed, a ground plate 840 arranged on a ground plane between the first contact plane and the second contact plane, and a first contact group 830U. , A second contact group 830L, and an insulating housing 850 that holds the ground plate 840.

Further, each of the first contact group 830U and the second contact group 830L is a pair of high frequency signal contact pairs composed of two contacts for transmitting a high frequency differential signal to and from the mating connector. And a pair of normal signal contact pairs consisting of two normal signal contacts for transmitting a differential signal of normal frequency to and from the other connector, and a plurality of non-signals used for purposes other than signal transmission. Includes contacts.

The housing 850 includes a top housing 850T integrally molded with the first contact group 830U and a bottom housing 850B integrally molded with the second contact group 830L and the ground plate 840. The top housing 850T is obtained by insert-molding a plurality of contacts 830 arranged on the first contact plane using an insulating resin material. Similarly, the bottom housing 850B is obtained by insert molding a plurality of contacts 830 arranged on the second contact plane and a ground plate 840 arranged on the ground plate plane using an insulating resin material. .. The housing 850 is obtained by overmolding the top housing 850T and the bottom housing 850B.

FIG. 3 shows a sectional view taken along line AA of the electric connector 800 of FIG. As shown in FIG. 3, each of the plurality of contacts 830 of the first contact group 830U and the second contact group 830L is based on the contact portion 831 that contacts the contact of the mating connector and the contact portion 831. It has a horizontally stretched portion 832 that extends horizontally to the end side, a downward stretched portion 833 that extends downward from the horizontally stretched portion 832, and a terminal portion 834 that extends downward from the downward stretched portion 833 to the proximal end side.

Receptacle connectors that comply with the USB Type-C standard, such as the electrical connector 800, are very small and have a short separation distance between the contact 830 of the first contact group 830U and the contact 830 of the second contact group 830L. Therefore, there is a problem of crosstalk generated between the upper and lower contacts 830 when a current flows through the contact 830 of the first contact group 830U and the contact 830 of the second contact group 830L. In particular, since a differential signal having a certain frequency or higher flows through the high-frequency signal contact pair and the normal signal contact pair, the influence of cross talk by the high-frequency signal contact pair and the normal signal contact pair for transmitting the differential signal is large. Therefore, in order to improve the electrical characteristics of the electric connector 800, it is particularly necessary to suppress crosstalk due to the high frequency signal contact pair and the normal signal contact pair.

In the receptacle connector conforming to the USB Type-C standard, a ground plate 840 is arranged between the contact 830 of the first contact group 830U and the contact 830 of the second contact group 830L in order to suppress such cross talk. Has been done. However, even with such a ground plate 840, it is difficult to completely eliminate the influence of crosstalk caused by the high frequency signal contact pair and the normal signal contact pair.

In addition, the amount of data transmitted and received using a connector such as the electric connector 800 is increasing due to the recent improvement in the computing power of a processor, the increase in the capacity of a storage device such as a memory, and the improvement in communication speed. Therefore, in particular, the frequency of the differential signal transmitted by the high frequency signal contact pair tends to increase. As the frequency of the differential signal transmitted by the high-frequency signal contact pair increases, the influence of crosstalk by the high-frequency signal contact pair also increases. The increased effect of crosstalk due to such high frequency signal contact pairs reduces the electrical characteristics of the electrical connector 800. Therefore, in particular, a technique for suppressing crosstalk due to a high-frequency signal contact pair is required.

JP-A-2018-170195 JP-A-2019-57501

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is an electric connector capable of suppressing crosstalk due to two contacts for transmitting a differential signal and an electronic device including the electric connector. Is to provide.

Such an object is achieved by the following inventions (1) to (13).
(1) An electrical connector that can be fitted with the mating connector inserted from the tip side.
A contact group composed of a plurality of contacts arranged on a contact plane and extending linearly along the insertion / extraction direction of the mating connector, and a contact group.
Including a ground plate arranged on a ground plane facing the contact plane,
The contact group includes a signal contact pair for transmitting a differential signal.
Each of the two contacts constituting the signal contact pair has a narrow pitch portion that approaches from one to the other.
An electric connector characterized in that the separation distance between the narrow pitch portions of the two contacts constituting the signal contact pair is smaller than the separation distance between the other portions of the two contacts.

(2) Each of the contacts in the contact group is located on the tip side, has a contact portion in contact with the mating connector, a horizontally stretched portion extending horizontally from the contact portion to the proximal end side, and the horizontal. It has a downward extending portion extending downward from the extending portion and a terminal portion extending downward from the downward extending portion to the proximal end side.
The electrical connector according to (1) above, wherein the narrow pitch portion of each of the two contacts of the signal contact pair is formed in the horizontally extended portion.

(3) The ground plate has an opening facing the two contacts of the signal contact pair.
The electrical connector according to (1) or (2) above, wherein the narrow pitch portion of each of the two contacts of the signal contact pair faces the opening of the ground plate.

(4) The electrical connector according to (3) above, wherein the width of the narrow pitch portion of each of the two contacts of the signal contact pair is smaller than the width of the opening of the ground plate.

(5) The signal contact pair of the contact group is a normal signal contact pair composed of two normal signal contacts for transmitting a differential signal of a normal frequency, and a high frequency differential higher than the normal frequency. Includes a high frequency signal contact pair consisting of two high frequency signal contacts for transmitting signals.
The electrical connector according to (3) or (4) above, wherein the two high-frequency signal contacts constituting the high-frequency signal contact pair face the opening of the ground plate.

(6) The narrow pitch portion has an approaching portion that approaches from one of the two contacts of the signal contact pair toward the other, and a straight portion that extends from the approaching portion along the insertion / extraction direction. The electrical connector according to any one of (1) to (5) above.

(7) The electric connector according to (6) above, wherein the length of the straight line portion of the narrow pitch portion of each of the two contacts of the signal contact pair is at least twice the width of the contact.

(8) In the above (6) or (7), the separation distance between the straight portions of the narrow pitch portions of the two contacts of the signal contact pair is 1.5 times or less the width of the contacts. Described electrical connector.

(9) An electrical connector that can be fitted with the mating connector inserted from the tip side.
A first contact group composed of a plurality of contacts arranged on the first contact plane and extending linearly along the insertion / removal direction of the mating connector, and a first contact group.
A second contact group composed of a plurality of contacts arranged on a second contact plane facing the first contact plane and extending linearly along the insertion / removal direction of the mating connector, and a second contact group.
Between the first contact plane and the second contact plane, the first contact plane and a ground plate arranged on a ground plane facing the second contact plane are included.
Each of the first contact group and the second contact group includes a signal contact pair for transmitting a differential signal.
Each of the two contacts constituting the signal contact pair of the first contact group and the second contact group has a narrow pitch portion approaching from one to the other.
The separation distance between the narrow pitch portions of the two contacts constituting the signal contact pair of the first contact group and the second contact group is the separation distance between the other parts of the two contacts. An electrical connector characterized by being smaller than.

(10) The ground plate has an opening facing the two contacts of the signal contact pair of the first contact group and the second contact group, respectively.
The electrical connector according to (9) above, wherein the narrow pitch portion of each of the two contacts of the signal contact pair of the second contact group faces the opening of the ground plate.

(11) The narrow pitch portion of each of the two contacts of the signal contact pair of the first contact group does not face the opening of the ground plate.
In a plan view, the narrow pitch portion of each of the two contacts of the signal contact pair of the first contact group and the narrow pitch portion of each of the two contacts of the signal contact pair of the second contact group. The electric connector according to (10) above, which does not overlap with the pitch portion.

(12) Each of the signal contact pairs of the first contact group and the second contact group is a normal signal contact pair composed of two normal signal contacts for transmitting a differential signal of a normal frequency. And a high frequency signal contact pair composed of two high frequency signal contacts for transmitting a high frequency differential signal higher than the normal frequency.
The two high-frequency signal contacts constituting the high-frequency signal contact pair of each of the first contact group and the second contact group face the opening of the ground plate (10) or (11). ) Described in the electrical connector.

(13) Housing and
The circuit board provided in the housing and
An electronic device mounted on the circuit board, comprising the electrical connector according to any one of (1) to (12) above.

In the electrical connector of the present invention, each of the two signal contacts constituting the signal contact for transmitting a differential signal has a narrow pitch portion that is close to each other from one to the other. With such a configuration, crosstalk in a narrow pitch portion of the signal contact can be suppressed, and the electrical performance of the electric connector can be improved.

It is a perspective view of the conventional electric connector. It is an exploded perspective view of the housing of the electric connector shown in FIG. FIG. 5 is a cross-sectional view taken along the line AA of the electrical connector of FIG. It is a perspective view of the electric connector which concerns on 1st Embodiment of this invention. It is a perspective view which shows the electric connector shown in FIG. 4 from another angle. It is an exploded perspective view of the electric connector shown in FIG. It is an exploded perspective view of the internal structure shown in FIG. It is a perspective view of the first contact group of the internal structure shown in FIG. It is a top view of the first contact group shown in FIG. It is a perspective view of the 2nd contact group of the internal structure shown in FIG. It is a top view of the 2nd contact group shown in FIG. It is a top view of the ground plate of the internal structure shown in FIG. It is a top view which shows the lower surface of the top housing of the internal structure shown in FIG. FIG. 3 is a plan view of the top housing in a state where the first contact group and the second ground plate piece are held by the top housing shown in FIG. It is a top view which shows the upper surface of the bottom housing of the internal structure shown in FIG. FIG. 5 is a plan view of the bottom housing in a state where the second contact group and the first ground plate piece are held by the bottom housing shown in FIG. FIG. 6 is a perspective view for showing the positional relationship between the first contact group, the second contact group, the first ground plate piece, and the second ground plate piece in the state where the internal structure shown in FIG. 6 is formed. is there. FIG. 6 is a plan view of the perspective view shown in FIG. 17 as viewed from above. FIG. 6 is a plan view of the perspective view shown in FIG. 17 as viewed from below. BB line cross section in FIG. 18 for showing the relationship between the separation distance of the high-speed signal contact pair of the first contact group and the second contact group and the width of the flow opening formed in the ground plate. It is a partially enlarged view of the figure. FIG. 8 is a cross-sectional view taken along the line CC in FIG. It is a partially enlarged view for showing the contact between the 2nd ground plate piece and a shield member. It is sectional drawing in the YZ plane of the electric connector shown in FIG. It is a perspective view of the 2nd ground plate piece of the electric connector which concerns on 2nd Embodiment of this invention. It is a perspective view of the ground plate of the electric connector which concerns on 2nd Embodiment of this invention. A cross section in a YZ plane for showing the positional relationship between the first contact group, the second contact group, the first ground plate piece, and the second ground plate piece in the electric connector according to the second embodiment of the present invention. It is a figure.

Hereinafter, the electric connector and the electronic device of the present invention will be described based on the preferred embodiments shown in the accompanying drawings. It should be noted that each of the figures referred to below is a schematic diagram prepared for the purpose of explaining the present invention. The dimensions (length, width, thickness, etc.) of each component shown in the drawings do not necessarily reflect the actual dimensions. Further, in each figure, the same or corresponding elements are given the same reference number. In the following description, the positive direction of the Z-axis in each figure is referred to as the "tip side", the negative direction of the Z-axis is referred to as the "base end side", the positive direction of the Y-axis is referred to as the "upper side", and the Y-axis The negative direction may be referred to as the "lower side", the positive direction of the X-axis may be referred to as the "front side", and the negative direction of the X-axis may be referred to as the "back side". Further, the Z direction may be referred to as "the insertion / removal direction of the mating connector".

<First Embodiment>
First, the electric connector according to the first embodiment of the present invention will be described in detail with reference to FIGS. 4 to 23. FIG. 4 is a perspective view of the electric connector according to the first embodiment of the present invention. FIG. 5 is a perspective view showing the electric connector shown in FIG. 4 from another angle. FIG. 6 is an exploded perspective view of the electric connector shown in FIG. FIG. 7 is an exploded perspective view of the internal structure shown in FIG. FIG. 8 is a perspective view of the first contact group of the internal structure shown in FIG. FIG. 9 is a plan view of the first contact group shown in FIG. FIG. 10 is a perspective view of a second contact group of the internal structure shown in FIG. FIG. 11 is a plan view of the second contact group shown in FIG. FIG. 12 is a plan view of the ground plate of the internal structure shown in FIG. FIG. 13 is a plan view showing the lower surface of the top housing of the internal structure shown in FIG. FIG. 14 is a plan view of the top housing in a state where the first contact group and the second ground plate piece are held by the top housing shown in FIG. FIG. 15 is a plan view showing the upper surface of the bottom housing of the internal structure shown in FIG. FIG. 16 is a plan view of the bottom housing in a state where the second contact group and the first ground plate piece are held by the bottom housing shown in FIG. FIG. 17 is for showing the positional relationship between the first contact group, the second contact group, the first ground plate piece, and the second ground plate piece in the state where the internal structure shown in FIG. 6 is formed. It is a perspective view of. FIG. 18 is a plan view of the perspective view shown in FIG. 17 as viewed from above. FIG. 19 is a plan view of the perspective view shown in FIG. 17 as viewed from below. FIG. 20 is a B in FIG. 18 for showing the relationship between the separation distance of the high-speed signal contact pair of the first contact group and the second contact group and the width of the flow opening formed in the ground plate. It is a partially enlarged view of the cross-sectional view taken along the line B. FIG. 21 is a cross-sectional view taken along the line CC in FIG. FIG. 22 is a partially enlarged view for showing the contact between the second ground plate piece and the shield member. FIG. 23 is a cross-sectional view of the electric connector shown in FIG. 4 in the YZ plane.

The electric connector 1 according to the first embodiment of the present invention shown in FIG. 4 is a waterproof electric connector with a waterproof function, and is further configured to comply with the specifications defined by the USB Type-C standard. ing. For example, the electric connector 1 is mounted as a receptacle connector on a circuit board provided in a housing (not shown) of an electronic device such as a mobile phone, a smartphone, a personal digital assistant, a portable music player, or an electronic book reader. Will be done. The mating connector is inserted from the tip end side (+ Z direction side) of the electrical connector 1 to provide an electrical connection between the mating connector and the electrical connector 1.

The electrical connector 1 of the present invention is configured to comply with the specifications defined by the USB Type-C standard. Therefore, the electric connector 1 is arranged on the upper and lower surfaces of the insulating housing 23, and has a first contact group 21U and a second contact group 21L that are vertically opposed to each other via the ground plate 22. The electric connector 1 has various features for suppressing crosstalk between the contacts 21 of the first contact group 21U and the second contact group 21L. In particular, in the electric connector 1 of the present invention, as can be shown in FIGS. 8 and 10, two pairs of high frequency signal contact pairs CP1 included in each of the first contact group 21U and the second contact group 21L. Each of the two high-frequency signal contacts 21A constituting the above has a narrow pitch portion 216 approaching from one to the other, and the narrow pitch portion 216 of the two high-frequency signal contacts 21A forms a narrow pitch region 217. There is. The reason will be described later, but by forming the narrow pitch portion 216 in each of the two high frequency signal contacts 21A, crosstalk by the two high frequency signal contacts 21A can be suppressed in the narrow pitch region 217.

As shown in FIG. 6, the electric connector 1 includes an internal structure 2, a metal shell 3 that covers the internal structure 2 from the outside, a shield member 4 that covers the shell 3 from the outside, and a shell 3. The outer waterproof seal member 5 which is attached to the tip end side portion of the outer periphery of the main body portion 31 and is held between the locking portion 32 of the shell 3 and the shield member 4 is included.

As shown in FIG. 7, the internal structure 2 faces the first contact group 21U composed of a plurality of contacts 21 arranged on the first contact plane and the first contact plane. Between the first contact plane and the second contact plane, the first contact plane and the second contact plane 21L composed of a plurality of contacts 21 arranged on the second contact plane. A ground plate 22 located on a ground plane facing the contact plane, an insulating housing 23 holding the first contact group 21U, a second contact group 21L, and the ground plate 22, and a first in the housing 23. A waterproof sealing portion 24 for tightly sealing the inside of the housing 23 and an outer mold 25 formed on the outside of the housing 23, which are in close contact with each of the contact 21 of the contact group 21U and the contact 21 of the second contact group 21L. And an inner waterproof seal member 26 mounted on the outer periphery of the outer mold 25.

FIG. 8 shows a perspective view of the first contact group 21U, and FIG. 9 shows a plan view of the first contact group 21U as viewed from above. The first contact group 21U is from a plurality of (12 in the illustrated embodiment) contacts 21 arranged on the first contact plane located above (+ Y direction) the ground plane on which the ground plate 22 is arranged. It is configured. The contacts 21 of the first contact group 21U are arranged parallel to each other along the X-axis direction on the first contact plane and on the upper surface of the top housing 23T (see FIGS. 6 and 7) of the housing 23 with each other. It is held in a separated state so as to insulate.

Each of the plurality of contacts 21 has a rod-like shape extending linearly along the Z-axis direction. Each of the plurality of contacts 21 of the first contact group 21U has a contact portion 211U on the distal end side (+ Z direction side) in contact with the contact of the mating connector, and from the contact portion 211U to the proximal end side (−Z direction side). At the time of insert molding of the top housing 23T, the horizontally stretched portion 212U extending horizontally, the downward stretching portion 213U extending downward from the horizontally stretching portion 212U, the terminal portion 214U extending downward from the downward stretching portion 213U to the proximal end side, and the top housing 23T. The first contact group 21U has a tie bar cut mark 215U formed by punching a connecting portion connecting each of the plurality of contacts 21 of the first contact group 21U by a tie bar cut.

The contact portion 211U of the contact 21 of the first contact group 21U is a mating connector when the mating connector is inserted from the tip side through the tip side opening of the shell 3 in a state where the electric connector 1 is assembled. Contact the corresponding contact. At this time, the mating side connector and the electric connector 1 are put into a mated state, and an electrical connection between the mating side connector and the electric connector 1 is provided. The horizontally extended portion 212U of the contact 21 of the first contact group 21U extends horizontally from the proximal end to the proximal end side (−Z direction) of the contact portion 211U. The horizontally extended portion 212U is embedded in the top housing 23T, and the contact 21 is fixedly held by the top housing 23T. The contact portion 211U and the horizontally extending portion 212U are located on the first contact plane.

The downward extending portion 213U of the contact 21 of the first contact group 21U extends downward (-Y direction) from the base end of the horizontal extending portion 212U. As shown in FIG. 5, the proximal end portions of the downward extending portions 213U of the plurality of contacts 21 of the first contact group 21U are exposed to the outside from the proximal end side of the top housing 23T. Returning to FIG. 8, the terminal portion 214U of the contact 21 extends horizontally from the proximal end portion of the downward extending portion 213U exposed to the outside from the proximal end side of the top housing 23T toward the proximal end side (−Z direction). There is. The terminal portion 214U of the first contact group 21U is connected to the circuit board of the electronic device.

The tie bar cut mark 215U of the contact 21 of the first contact group 21U is formed by the tie bar cut performed after the insert molding of the top housing 23T. At the time of insert molding of the top housing 23T, in order to prevent the positions of the plurality of contacts 21 of the first contact group 21U in the top housing 23T from being displaced or tilted, each of the plurality of contacts 21 is connected to each other by a connecting portion. There is. Therefore, after the insert molding of the top housing 23T, the connecting portion connecting each of the plurality of contacts 21 of the first contact group 21U is punched out, and a tie bar cut for separating the plurality of contacts 21 from each other is executed. The tie bar cut mark 215U of the contact 21 of the first contact group 21U is a remaining portion of the connection portion punched out by the tie bar cut.

Further, the plurality of contacts 21 constituting the first contact group 21U are two pairs of high frequency signal contacts composed of two high frequency signal contacts 21A for transmitting a high frequency differential signal to and from the mating connector. It is used for a pair of normal signal contact pair CP2 composed of two normal signal contacts 21B for transmitting a differential signal of a normal frequency between the pair CP1 and the other party connector, and an application other than signal transmission. Includes a plurality of non-signal contacts 21C.

Each of the two pairs of high frequency signal contact pairs CP1 is composed of two adjacent high frequency signal contacts 21A. The two pairs of high-frequency signal contact pairs CP1 are located on both sides of the electric connector 1 in the width direction (X-axis direction in the drawing), respectively. Further, non-signal contacts 21C are arranged on both sides of the two pairs of high-frequency signal contact pairs CP1. In FIGS. 8 and 9, the non-signal contact 21C arranged outside each of the two pairs of high-frequency signal contact pairs CP1 is a ground terminal that contacts the ground terminal of the mating connector. On the other hand, the non-signal contacts 21C arranged inside each of the two pairs of high-frequency signal contact pairs CP1 are power supply terminals for supplying power to the electric connector 1.

The pair of normal signal contact pair CP2 is composed of two normal signal contacts 21B for transmitting a differential signal of normal frequency to and from the mating connector, and is between two pairs of high frequency signal contact pair CP1. Are arranged in. Further, non-signal contacts 21C are arranged on both sides of the pair of normal signal contact pairs CP2. Each of the non-signal contacts 21C arranged on both sides of the pair of normal signal contact pair CP2 is an identification contact used for transmitting a signal for identifying the electric connector 1.

As described above, the first contact group 21U includes the contacts 21 used for various purposes. Further, the USB Type-C standard stipulates that the distances (pitch) between the contact portions 211U of a plurality of contacts 21 must be equal to each other (equal pitch). Further, the pitch lengths of the contact portions 211U of the plurality of contacts 21 are also strictly determined by the USB Type-C standard. Further, the distance between the terminal portions 214U of the plurality of contacts 21 is such that the execution accuracy of the connection of the electronic device to the circuit board (for example, the connection by soldering) and the prevention of a short circuit between the contacts 21 of each other are achieved. From the viewpoint, it is set appropriately.

Two adjacent high frequency signal contacts 21A constituting the high frequency signal contact pair CP1 are used to transmit a high frequency differential signal. Therefore, high-frequency signals having opposite directions flow through the two adjacent high-frequency signal contacts 21A. As is well known in the field of electromagnetics, the direction of noise generated by a current flowing in a conductor depends on the direction of the current flowing in the conductor. Therefore, when a pair of conductors in which currents flowing in opposite directions are arranged close to each other, the influence of noise generated by the currents flowing in the pair of conductors on the other contacts 21 cancels each other out.

As shown in FIG. 9, in the electric connector 1 of the present invention, of the plurality of contacts 21 constituting the first contact group 21U, the two high frequencies constituting each of the two pairs of high frequency signal contact pairs CP1. Each of the signal contacts 21A has a narrow pitch portion 216 that is close to each other from one side to the other. The narrow pitch region 217 is formed by the narrow pitch portion 216 of the two high frequency signal contacts 21A.

Each narrow pitch portion 216 of the two high frequency signal contacts 21A receives a high frequency signal between the two approaching portions 2161 approaching from one high frequency signal contact 21A toward the other high frequency signal contact 21A and the two approaching portions 2161. It has a straight portion 2162 that extends horizontally along the extending direction of the contact 21A (the insertion / removal direction of the mating connector, that is, the Z direction).

As described above, the separation distance (pitch) between the contact portions 211U of the two high-frequency signal contacts 21A is defined by the USB Type-C standard, and the separation distance between the terminal portions 214U is determined by the circuit board of the electronic device. It is appropriately set from the viewpoint of execution accuracy of connection to (for example, connection by soldering) and prevention of short circuit between mutual contacts 21. Therefore, as long as the USB Type-C standard is followed, the narrow pitch region 217 cannot be formed in the contact portion 211U and the terminal portion 214U. Therefore, in the electric connector 1 of the present invention, there are no restrictions from the viewpoints of the USB Type-C standard, execution accuracy, prevention of short circuits between the contacts 21 of each other, and the like, and the horizontally stretched portion has a degree of freedom in design. A narrow pitch region 217 is formed in 212U.

In the narrow pitch region 217, the separation distance between the straight portions 2162 of the narrow pitch portion 216 of the two high frequency signal contacts 21A is smaller than the separation distance between the other portions of the two high frequency signal contacts 21A. As described above, a high-frequency differential signal, that is, a current flowing in opposite directions flows through each of the two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1. Therefore, the directions of noise generated by the currents flowing in each of the two high-frequency signal contacts 21A are different from each other, and the effects of noise on the other contacts 21 cancel each other out. In particular, the separation distance between the straight portions 2162 of the narrow pitch portion 216 is smaller than the separation distance between the other portions. Therefore, in the narrow pitch region 217, the influence of noise generated by the current (differential signal) flowing in each of the two high frequency signal contacts 21A on the other contacts 21 cancels each other out. Therefore, in the narrow pitch region 217, the influence of the noise generated by the current (differential signal) flowing in each of the two high frequency signal contacts 21A on the other contact 21 is that the noise generated by the current flowing in the other part is the other noise. It is smaller than the effect on the contact 21.

As is well known, between two contacts 21 arranged apart from each other (for example, the contact 21 of the first contact group 21U and the contact 21 of the second contact group 21L arranged separately in the upper and lower parts). The crosstalk is caused by the fact that the current flowing in one contact 21 affects the other contact 21 and the current is generated in the other contact 21 by electromagnetic induction. Therefore, in order to suppress crosstalk between two contacts 21, it is useful to absorb or reduce the influence of the current flowing in one of the contacts 21.

In the narrow pitch region 217, the separation distance between the straight portions 2162 of the narrow pitch portion 216 of the two high frequency signal contacts 21A is smaller than the separation distance between the other portions of the two high frequency signal contacts 21A, and the two The effects of noise generated by the current (differential signal) flowing in each of the high frequency signal contacts 21A on the other contacts 21 cancel each other out. Therefore, in the narrow pitch region 217, crosstalk caused by the high frequency signal contact 21A can be suppressed.

As is clear from FIG. 9, in the narrow pitch region 217, the separation distance between the straight portion 2162 of the narrow pitch portion 216 of the high frequency signal contact 21A and the horizontally stretched portion 212U of the adjacent non-signal contact 21C is a high frequency. It is larger than the distance between the other portion of the signal contact 21A and the horizontally extended portion 212U of the adjacent non-signal contact 21C. From the viewpoint of suppressing crosstalk, the smaller the distance between the straight portions 2162 of the narrow pitch portions 216 of the two high-frequency signal contacts 21A, the better. However, if the separation distance between the straight portions 2162 of the narrow pitch portion 216 of the two high frequency signal contacts 21A is made too small, the risk of short circuit between the two high frequency signal contacts 21A increases, and the high frequency signal contact 21A Since there are disadvantages such as a change in impedance, reflection of the high frequency signal contact 21A, and an increase in insertion loss (insertion loss), the separation distance between the straight portions 2162 of the narrow pitch portion 216 of the two high frequency signal contacts 21A is these. In consideration of a plurality of factors including the demerits of the above, the electrical characteristics of the electric connector 1 are appropriately set so as to be most preferable. However, although it depends on the overall size of the electric connector 1 and the design balance of the electric connector 1 such as the width, length, and thickness of the contact 21, in order to substantially obtain the cross talk suppression effect due to the narrow pitch region 217, The separation distance between the straight portions 2162 of the narrow pitch portions 216 of the two high frequency signal contacts 21A is preferably 1.5 times or less the width (length in the X direction) of the high frequency signal contacts 21A, and further 1. It is more preferably 0 times or less.

Similarly, the length (length in the Z direction) of the straight portion 2162 of the narrow pitch portion 216 of the two high-frequency signal contacts 21A may be longer as long as it is from the viewpoint of suppressing crosstalk. However, the length of the contact portion 211U (the length in the Z direction) is defined by the USB Type-C standard, and the length of the entire electric connector 1 is limited in order to incorporate it into an electronic device. Therefore, the length of the straight portion 2162 is appropriately set. However, although it depends on the overall size of the electric connector 1 and the design balance of the electric connector 1 such as the width, length, and thickness of the contact 21, in order to substantially obtain the cross talk suppression effect due to the narrow pitch region 217, The length of the straight portion 2162 is preferably twice or more, more preferably five times or more, the width (length in the X direction) of the high-frequency signal contact 21A.

As described above, in the electric connector 1 of the present invention, each of the two adjacent high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 has a narrow pitch portion 216 that is close to each other from one to the other. The narrow pitch region 217 is formed by the narrow pitch portion 216 of the two high frequency signal contacts 21A. Therefore, in the narrow pitch region 217, crosstalk caused by the high frequency signal contact 21A can be effectively suppressed.

As is well known, the effect of crosstalk increases as the frequency of the signal flowing through the contact 21 increases. Therefore, in the electric connector 1 of the present invention, each of the high-frequency signal contacts 21A through which a high-frequency differential signal flows has a narrow pitch portion 216 that is close to each other from one side to the other, and the two high-frequency signal contacts 21A are narrow. The narrow pitch region 217 is formed by the pitch portion 216. Therefore, crosstalk between a plurality of contacts 21 can be suppressed more effectively than providing the narrow pitch portion 216 on the other two adjacent contacts 21. In the illustrated form, the normal signal contact 21B does not have the narrow pitch portion 216, but the present invention is not limited to this. For example, similarly to the high frequency signal contact 21A, the aspect in which the normal signal contact 21B has the narrow pitch portion 216 is also within the scope of the present invention.

FIG. 10 shows a perspective view of the second contact group 21L, and FIG. 11 shows a plan view of the second contact group 21L as viewed from above. The second contact group 21L includes a plurality of (12 in the illustrated embodiment) contacts arranged on the second contact plane located below (-Y direction) the ground plane on which the ground plate 22 is arranged. It is composed of 21. The contacts 21 of the second contact group 21L are arranged parallel to each other along the X-axis direction on the second contact plane, and are arranged on the lower surface of the bottom housing 23B (see FIGS. 6 and 7) of the housing 23 with each other. It is held in a separated state so as to insulate.

That is, each of the plurality of contacts 21 of the second contact group 21L has a contact portion 211L on the distal end side (+ Z direction side) that contacts the contact of the mating connector, and a proximal end side (−Z direction side) from the contact portion 211L. ), A horizontally stretched portion 212L extending horizontally from the horizontally stretched portion 212L, a downward stretching portion 213L extending downward from the horizontally stretched portion 212L, a terminal portion 214L extending downward from the downward stretching portion 213L to the proximal end side, and an insert of the bottom housing 23B. It has a tie bar cut mark 215 L formed by punching a connecting portion connecting each of the plurality of contacts 21 of the second contact group 21 L at the time of molding by a tie bar cut.

However, the length of each of the plurality of contacts 21 of the second contact group 21L is shorter than the length of each of the plurality of contacts 21 of the first contact group 21U. Further, the horizontally extended portion 212L of the plurality of contacts 21 of the second contact group 21L has an outer extending portion 2121 extending in a direction extending outward from the center in the width direction (X direction) of the electric connector 1. Therefore, as shown in FIG. 19, in a plan view, the terminal portions 214L of the plurality of contacts 21 of the second contact group 21L are between the terminal portions 214U of the plurality of contacts 21 of the first contact group 21U. Is located in. Returning to FIG. 10, the amount of downward extension of the downward extension portions 213L of the plurality of contacts 21 of the second contact group 21L in the downward direction (-Y direction) is the downward extension portion 213U of the plurality of contacts 21 of the first contact group 21U. Less than the amount of downward extension of.

The functions of the plurality of contacts 21 of the second contact group 21L are the same as the functions of the plurality of contacts 21 of the first contact group 21U described above. Specifically, similarly to the first contact group 21U, the second contact group 21L is composed of two high frequency signal contacts 21A for transmitting a high frequency differential signal to and from the mating connector. A pair of normal signal contact pair CP2 composed of two pairs of high frequency signal contact pair CP1 and two normal signal contacts 21B for transmitting a differential signal of normal frequency between the other side connector, and signal transmission. Includes a plurality of non-signal contacts 21C used for purposes other than. Further, the arrangement of the high frequency signal contact 21A, the normal signal contact 21B, and the non-signal contact 21C of the second contact group 21L is the same as that of the first contact group 21U.

Similar to the two high frequency signal contacts 21A constituting the high frequency signal contact pair CP1 of the first contact group 21U, each of the two high frequency signal contacts 21A constituting the high frequency signal contact pair CP1 of the second contact group 21L It has a narrow pitch portion 216 that is close to the other from one side, and a narrow pitch region 217 is formed by the narrow pitch portion 216 of the two high frequency signal contacts 21A.

In the high-frequency signal contact 21A of the second contact group 21L, the outer stretching portion 2121 is formed on the proximal end side portion of the horizontally extending portion 212L, so that the narrow pitch of the high-frequency signal contact 21A of the second contact group 21L is formed. The portion 216 is composed of one approaching portion 2161 and a straight portion 2162.

The first contact group 21U and the second contact group 21L are the contact portion 211U of the contact 21 of the first contact group 21U and the second contact group when viewed from the front side (counterpart connector side) of the electric connector 1. The contact portion 211L of the contact 21 of 21L is arranged so as to be vertically symmetrical via the ground plate 22.

Further, from the contact portions 211U and 211L of the first contact group 21U and the second contact group 21L and the tip side portions of the horizontal extension portions 212U and 212L (from the outer extension portion 2121 of the horizontal extension portion 212L of the second contact group 21L). The tip side portions) face each other via the ground plate 22. Such crosstalk between the vertically opposed contacts 21 adversely affects the electrical characteristics of the electric connector 1.

As described above, the crosstalk generated by the high frequency signal contact 21A for transmitting the high frequency differential signal has a great influence on the electrical characteristics of the electric connector 1. In the electric connector 1 of the present invention, each of the two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 of the first contact group 21U and the second contact group 21L has a narrow pitch approaching from one to the other. The narrow pitch region 217 is formed by the narrow pitch portion 216 of the two high frequency signal contacts 21A having the portion 216. Therefore, in the narrow pitch region 217, the crosstalk generated by the high frequency signal contact 21A can be effectively suppressed, and the electrical characteristics of the electric connector 1 can be improved.

FIG. 12 shows a plan view of the ground plate 22 as viewed from above. The ground plate 22 has a first contact plane and a second contact plane between the first contact plane in which the first contact group 21U is arranged and the second contact plane in which the second contact group 21L is arranged. It is arranged on a ground plane parallel to both contact planes. The ground plate 22 absorbs the influence of the current flowing in one of the contacts 21 of the first contact group 21U and the second contact group 21L arranged separately in the upper and lower parts, and the current flowing in one contact 21 is the other. It prevents the contact 21 from being affected and suppresses crosstalk between the contacts 21 which are arranged separately in the upper and lower parts.

As shown in FIG. 12, the ground plate 22 includes a first ground plate piece 221 and a second ground plate piece 222. As shown in FIG. 7, the first ground plate piece 221 is a flat plate-like member made of a metal material provided on the upper surface of the bottom housing 23B of the housing 23. Returning to FIG. 12, the first ground plate piece 221 extends downward (-Y direction) from the base end of the flat plate-shaped main body 2211 and the main body 2211, and is exposed to the outside of the housing 23. 2212 (see FIG. 5) and.

The main body 2211 of the first ground plate piece 221 is parallel to the plane (first contact plane and second contact plane) on which a plurality of contacts 21 are arranged on the upper surface of the bottom housing 23B of the housing 23. It is provided so as to be. Further, when the bottom housing 23B of the housing 23 is insert-molded into the main body portion 2211 so as to hold the second contact group 21L and the first ground plate piece 221, a plurality of contacts 21 of the second contact group 21L are formed. A plurality of positioning holes 2213 for inserting pins for performing positioning of the second contact group 21L and a plurality of contacts 21 of a second contact group 21L connected to each other via a connecting portion at the time of insert molding of the bottom housing 23B of the housing 23. A plurality of tie bar cut holes 2214 for performing a tie bar cut for punching out the connection portion of the second contact group 21L and separating the plurality of contacts 21 of the second contact group 21L from each other, and the top housing 23T and the bottom housing 23B of the housing 23 are provided with each other. A plurality of flows for ensuring the fluidity of the elastomer material in the housing 23 when the elastomer material is filled in the housing 23 in order to form the waterproof sealing portion 24 inside the housing 23 in a close contact state. The opening 2215 is provided.

The positioning hole 2213 is used to position each of the plurality of contacts 21 of the second contact group 21L when the bottom housing 23B is insert-molded so as to hold the second contact group 21L and the first ground plate piece 221. It is formed in the main body 2211 so that the positioning pin of the above can be inserted. When the bottom housing 23B is insert-molded, the positioning pins for positioning the plurality of contacts 21 of the second contact group 21L are, in addition to the positioning holes 2213, the tie bar cut hole 2214 and the flow opening. It may be inserted through 2215. The number, position, and shape of the positioning holes 2213 in the main body 2211 are not particularly limited, and are appropriately set as necessary when the bottom housing 23B is insert-molded.

The tie bar cut hole 2214 punches out the connection portions of the plurality of contacts 21 of the second contact group 21L which are connected to each other via the connection portion when the bottom housing 23B is insert-molded, and the tie bar cut hole 2214 of the second contact group 21L It is formed on the main body 2211 to perform a tie bar cut for separating the plurality of contacts 21 from each other. When the bottom housing 23B is insert-molded, the positioning of the plurality of contacts 21 of the second contact group 21L is executed by the positioning pin as described above, but in order to perform the positioning of the plurality of contacts 21 more accurately. It is preferable to hold the plurality of contacts 21 in a state of being connected to each other at the root portion. Therefore, the plurality of contacts 21 of the second contact group 21L are connected to each other by the connecting portion provided in the horizontally stretched portion 212L at the time of insert molding the bottom housing 23B. In the illustrated embodiment, of the plurality of contacts 21 constituting the second contact group 21L, the two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 and the two nons located to the left and right of the high-frequency signal contact pair CP1. The signal contacts 21C are connected to each other by a connecting portion, and a first contact component and a second contact component are respectively configured. Specifically, in FIGS. 10 and 11, the first contact component is the two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 located on the positive side of the X-axis, and the high-frequency signal contact pair CP1. It is composed of two non-signal contacts 21C located on the left and right. On the other hand, the second contact component includes two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 located on the negative side of the X-axis and two non-signal contacts 21C located on the left and right of the high-frequency signal contact pair CP1. It is composed of and. Further, two normal signal contacts 21B constituting the normal signal contact pair CP2 and two non-signal contacts 21C located on the left and right sides of the normal signal contact pair CP2 are connected to each other by a connecting portion, and a third contact component is formed. It is configured. Therefore, at the time of insert molding the bottom housing 23B, the plurality of contacts 21 have three contact parts in which the four contacts 21 are connected to each other, that is, a first contact part, a second contact part, and a third contact part. It is composed of contact parts.

After the bottom housing 23B is insert-molded, the tie bar cut punches out the connection portion of the four contacts 21 connected to each other of the first contact part, the second contact part, and the third contact part, and the second contact. This is performed to separate the plurality of contacts 21 of the group 21L from each other. A tie bar cut on each of the four contacts 21 constituting the first contact component, the second contact component, and the third contact component separates each of the plurality of contacts 21 of the second contact group 21L from each other. A tie bar cut mark 215L is formed on each of the plurality of contacts 21.

The tie bar cut is similarly executed for the plurality of contacts 21 of the first contact group 21U. Similar to the plurality of contacts 21 of the second contact group 21L, the plurality of contacts 21 of the first contact group 21U are insert-molded with a top housing 23T so as to hold the plurality of contacts 21 of the first contact group 21U. At that time, it is composed of a first contact part, a second contact part, and a third contact part. After insert molding the top housing 23T, the connection of the four contacts 21 connected to each other of the first contact component, the second contact component, and the third contact component through the opening formed in the top housing 23T. The portions are punched out by a tie bar cut, and the plurality of contacts 21 of the first contact group 21U are separated from each other. As a result, each of the plurality of contacts 21 of the first contact group 21U is separated from each other, and a tie bar cut mark 215U is formed in each of the plurality of contacts 21.

The flow opening 2215 is formed by filling the inside of the housing 23 with an elastomer material in a state where the lower surface of the top housing 23T of the housing 23 and the upper surface of the bottom housing 23B are in close contact with each other, and the waterproof sealing portion 24 (FIG. 7) is used to form. The waterproof sealing portion 24 is an elastic member formed in the housing 23 in close contact with each other so as to surround a part of each of the plurality of contacts 21.

The waterproof sealing portion 24 includes each part of the plurality of contacts 21 in the housing 23 in close contact with each part of the plurality of contacts 21. Therefore, the inside of the housing 23 is liquid-tightly sealed by the waterproof sealing portion 24, and water can be prevented from entering from the tip end side to the proximal end side of the waterproof sealing portion 24. In this way, the waterproof sealing portion 24 is located between the tip end side and the proximal end side in the housing 23, blocks the intrusion path of water from the distal end side to the proximal end side in the housing 23, and the housing 23. It provides a waterproof function inside.

In a state where the lower surface of the top housing 23T of the housing 23 and the upper surface of the bottom housing 23B are in close contact with each other, the filling opening 233 of the top housing 23T and the bottom housing 23B (see FIGS. 7, 13, and 15) is used. , The elastomer material is filled in the housing 23, and the waterproof sealing portion 24 is formed in the housing 23. The flow opening 2215 is an opening for ensuring the fluidity of the elastomer material in the housing 23 when forming the waterproof sealing portion 24.

The flow opening 2215 is formed at a position facing each of the contact 21 of the first contact group 21U and the contact 21 of the second contact group 21L. In order to improve the adhesion of the waterproof sealing portion 24 to a part of the contacts 21 of the first contact group 21U and the second contact group 21L, the elastomer is provided through the filling opening 233 of the top housing 23T and the bottom housing 23B. When the material is filled in the housing 23, it is necessary to bring the elastomer material into close contact with the entire circumference of each of the plurality of contacts 21 of the second contact group 21L located below the flow opening 2215. If the portion of the first ground plate piece 221 facing the flow opening 2215, the plurality of contacts 21 of the second contact group 21L overlap with the first ground plate piece 221 when viewed in a plan view. Then, when the bottom housing 23B is insert-molded, the entire circumference of each of the plurality of contacts 21 of the second contact group 21L is molded at the portion of the first ground plate piece 221 facing the flow opening 2215. I can't hold it down with. As a result, when the bottom housing 23B is insert-molded, the bottom housing 23B is formed around each of the plurality of contacts 21 of the second contact group 21L at the portion of the first ground plate piece 221 facing the flow opening 2215. Since the insulating resin material of the above is flowed in, it is not possible to expose the entire circumference of each of the plurality of contacts 21 of the second contact group 21L. In this case, when the waterproof sealing portion 24 is formed, it is not possible to form a space for adhering the elastomer material to the entire circumference of each of the plurality of contacts 21 of the second contact group 21L. For this reason, in the electric connector 1 of the present invention, in the portion of the first ground plate piece 221 facing the flow opening 2215, the contact 21 of the second contact group 21L is attached to the flow opening 2215. Must be completely exposed.

For example, as shown in FIG. 20, the separation distance W2 between the outer surfaces of the two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 of the second contact group 21L is the distance W2 of the second contact group 21L. The width (length in the X direction) W3 of the flow opening 2215 facing the two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 is smaller. As described above, in the portion of the first ground plate piece 221 facing the flow opening 2215, the contact 21 of the second contact group 21L is completely exposed to the flow opening 2215, whereby. When forming the waterproof sealing portion 24, the elastomer material is sufficiently flowed around the plurality of contacts 21 of the second contact group 21L, and the first contact group 21U and the second contact group 21U of the waterproof sealing portion 24 are formed. The adhesion of the contact group 21L to a part of the contact 21 can be improved.

Further, as shown in FIG. 21, the main body portion 2211 of the first ground plate piece 221 has the contact portion 211U and the horizontally extended portion 212U of the contact 21 of the first contact group 21U and the second contact group 21L. It is located between the contact portion 211L and the horizontally stretched portion 212L of the contact 21 of the above. Due to such an arrangement, the influence of the current flowing through the contact portions 211U, 211L and the horizontal extending portions 212U, 212L of the contact 21 of the first contact group 21U and the second contact group 21L is affected by the first ground plate piece 221. It is absorbed by the main body 2211. Therefore, crosstalk between the vertically arranged contacts 21 can be suppressed.

Returning to FIG. 12, the second ground plate piece 222 is a member made of a metal material located on the ground plane with respect to the base end side (−Z direction side) of the first ground plate piece 221. The second ground plate piece 222 includes a main body portion 2221 on a flat plate, a pair of protruding portions 2222 extending upward (+ Y direction) from both end portions in the width direction (X direction) of the main body portion 2221, and a main body portion 2221. It is located at both end portions in the width direction (X direction) of the shield member 4, and has a pair of electrical contact portions 2223 that come into contact with the inner side surface of the shield member 4. The pair of protrusions 2222 and the electrical contact portion 2223 are located above the main body portion 2221 (in the + Y direction), whereby the pair of protrusions 2222 and the electrical contact portion of the second ground plate piece 222 are located. The 2223 is prevented from contacting the first ground plate piece 221.

The main body portion 2221 is a plate-shaped member located on the ground plane side of the main body portion 2211 of the first ground plate piece 221. The main body portion 2221 of the second ground plate piece 222 is provided so as not to come into contact with the main body portion 2211 of the first ground plate piece 221. There is a slight gap between the surface and the main body portion 2221 of the second ground plate piece 222. As described above, the pair of projecting portions 2222 and the electrical contact portion 2223 of the second ground plate piece 222 are also prevented from contacting the first ground plate piece 221. Therefore, the second ground plate piece 222 has a second ground plate piece 222. , Is separated from the first ground plate piece 221 and is not directly electrically connected to the first ground plate piece 221.

The pair of projecting portions 2222 extend upward (+ Y direction) from both end side portions in the width direction (X direction) of the main body portion 2221. The second ground plate piece 222 is attached on the lower surface of the top housing 23T by inserting each of the pair of protrusions 222 into the press-fitting groove 234 (see FIG. 13) formed on the lower surface of the top housing 23T. be able to. The attachment of the second ground plate piece 222 on the lower surface of the top housing 23T is executed at an arbitrary timing after the top housing 23T is formed by insert molding and before being integrated with the bottom housing 23B. Will be done.

The pair of electrical contact portions 2223 extends outward from both end portions in the width direction (X direction) of the main body portion 2221, and the outer shape of the electrical contact portions 2223 fits the inner surface of the shield member 4. (See FIG. 22). By bringing the pair of electrical contact portions 2223 into contact with the shield member 4, the ground (grounding) of the second ground plate piece 222 is realized.

As shown in FIG. 21, the main body portion 2221 of the second ground plate piece 222 is the horizontal extension portion 212U of the contact 21 of the first contact group 21U and the horizontal extension portion 212U of the contact 21 of the second contact group 21L. It is located between the stretched portion 212L, the downward stretched portion 213L, and the terminal portion 214L. With such an arrangement, the current flowing through the horizontally stretched portion 212U of the contact 21 of the first contact group 21U, or the horizontally stretched portion 212L, the downward stretching portion 213L, and the terminal portion 214L of the contact 21 of the second contact group 21L. Is absorbed by the main body 2221 of the second ground plate piece 222.

The ground plate 22 of the electric connector 1 of the present invention includes a second ground plate piece 222 in addition to the first ground plate piece 221 used in the prior art. As described above, the electric connector 1 of the present invention includes a region in which a metal member such as a ground plate is not located in the prior art, more specifically, a horizontally extended portion 212U of the contact 21 of the first contact group 21U. , The second ground plate piece 222 of the ground plate 22 is configured to be located between the horizontally extended portion 212L, the downward extending portion 213L, and the terminal portion 214L of the contact 21 of the second contact group 21L. .. Therefore, crosstalk between the upper and lower contacts 21 can be suppressed more effectively.

FIG. 13 shows the lower surface of the top housing 23T to which the second ground plate piece 222 is attached. FIG. 14 shows the lower surface of the top housing 23T in a state where the first contact group 21U and the second ground plate piece 222 are held by the top housing 23T.

As shown in FIG. 13, the top housing 23T has a base portion 231 located on the base end side (−Z direction side) and a tongue-shaped portion 232 extending from the base portion 231 toward the tip end side (+ Z direction side). And a filling opening 233 formed in the base end side portion of the tongue-shaped portion 232, and a pair of press-fitting grooves 234 formed in both ends in the width direction (X direction) of the lower surface of the base portion 231. There is. The top housing 23T is formed by insert molding so as to hold a plurality of contacts 21 of the first contact group 21U. As shown in FIG. 14, a second in a pair of press-fit grooves 234 formed on the lower surface of the top housing 23T insert-molded to hold the plurality of contacts 21 of the first contact group 21U. By press-fitting the pair of protrusions 222 of the ground plate piece 222, the second ground plate piece 222 is fixed on the lower surface of the top housing 23T, and the second ground plate piece 222 is held by the top housing 23T.

The tongue-shaped portion 232 has a plurality of positioning holes 2321 for inserting pins for positioning a plurality of contacts 21 of the first contact group 21U when the top housing 23T is insert-molded, and the top housing 23T. At the time of insert molding, the connection portions of the plurality of contacts 21 of the first contact group 21U connected to each other via the connection portions are punched out, and the tie bar cut for separating the plurality of contacts 21 of the first contact group 21U from each other. A plurality of tie bar cut holes 2322, and a plurality of tie bar cut holes 2322 for carrying out the above are formed.

FIG. 15 shows the upper surface of the bottom housing 23B provided with the first ground plate piece 221. FIG. 16 shows the lower surface of the bottom housing 23B in a state where the second contact group 21L and the first ground plate piece 221 are held by the bottom housing 23B.

As shown in FIG. 15, similarly to the top housing 23T, the bottom housing 23B faces the base portion 231 located on the base end side (−Z direction side) and the tip end side (+ Z direction side) from the base portion 231. It has a tongue-shaped portion 232 that extends in the direction of the tongue, and a filling opening 233 formed in a proximal end side portion of the tongue-shaped portion 232. As shown in FIG. 16, a first ground plate piece 221 is provided on the upper surface of the bottom housing 23B, and a plurality of contacts 21 of the second contact group 21L are held on the lower surface side of the bottom housing 23B. There is. The bottom housing 23B is formed by insert molding so as to hold a plurality of contacts 21 of the second contact group 21L and the first ground plate piece 221.

When the bottom housing 23B is insert-molded into the tongue-shaped portion 232 of the bottom housing 23B at positions corresponding to the positioning holes 2213 and the tie bar cut holes 2214 of the first ground plate piece 221 respectively, the second contact group 21L A plurality of positioning holes 2321 for inserting pins for positioning the plurality of contacts 21 and a plurality of second contact groups 21L connected to each other via a connecting portion at the time of insert molding of the bottom housing 23B. A plurality of tie bar cut holes 2322 for punching the connection portion of the contact 21 and performing a tie bar cut for separating the plurality of contacts 21 of the second contact group 21L from each other are formed.

As shown in FIG. 7, the housing 23 is formed by bringing the lower surface side of the top housing 23T on which the second ground plate piece 222 is mounted on the lower surface and the upper surface side of the bottom housing 23B into close contact with each other. .. When the lower surface side of the top housing 23T and the upper surface side of the bottom housing 23B are brought into close contact with each other, the filling opening 233 of the top housing 23T and the bottom housing 23B and the flow opening 2215 of the first ground plate piece 221 are flat. Overlapping in sight.

After the lower surface side of the top housing 23T and the upper surface side of the bottom housing 23B are brought into close contact with each other, the elastomer material is filled into the housing 23 through the filling opening 233 of the top housing 23T and the bottom housing 23B. The elastomeric material filled in the housing 23 flows in the housing 23 through the flow opening 2215 of the first gland plate piece 221. After that, the elastomer material is cured to form the waterproof sealing portion 24 in the housing 23. The inside of the housing 23 is liquid-tightly sealed by the waterproof sealing portion 24, and water can be prevented from entering from the tip side to the base end side of the waterproof sealing portion 24.

After the waterproof sealing portion 24 is formed, the top housing 23T and the bottom housing 23B are overmolded to form the outer mold 25 in order to integrate the top housing 23T and the bottom housing 23B. The top housing 23T and the bottom housing 23B are integrated by the outer mold 25. Further, as shown in FIGS. 6 and 23, a ring-shaped inner waterproof seal member 26 made of an elastic material is attached on the outer peripheral surface of the outer mold 25, and the inner structure 2 and the inner structure 2 are attached. The gap between the shell 3 and the inner surface is hermetically sealed by the inner waterproof seal member 26. The inner waterproof seal member 26 blocks the intrusion path of water between the inner structure 2 and the inner side surface of the shell 3 from the tip end side to the base end side, and waterproofs between the inner structure 2 and the shell 3. Provides functionality.

After forming the housing 23 that holds the first contact group 21U, the second contact group 21L, the first ground plate piece 221 and the second ground plate piece 222, and the waterproof sealing portion 24 inside the outer The internal structure 2 can be formed by attaching the inner waterproof seal member 26 on the outer peripheral surface of the mold 25.

FIG. 17 shows the positional relationship between the first contact group 21U, the second contact group 21L, the first ground plate piece 221 and the second ground plate piece 222 in a state where the internal structure 2 is formed. It is a perspective view for showing. FIG. 18 is a plan view of the first contact group 21U, the second contact group 21L, the first ground plate piece 221 and the second ground plate piece 222 as viewed from above. FIG. 19 is a plan view of the first contact group 21U, the second contact group 21L, the first ground plate piece 221 and the second ground plate piece 222 as viewed from below. FIG. 20 is a partially enlarged view of a sectional view taken along line BB of FIG. FIG. 21 is a cross-sectional view taken along the line CC of FIG. In FIGS. 17 to 21, for the sake of explanation, the internal structure 2 other than the first contact group 21U, the second contact group 21L, the first ground plate piece 221 and the second ground plate piece 222 The component is omitted. Further, in FIG. 20, for simplification of the drawing, only the cross section of the contact 21 and the first ground plate piece 221 are shown, and the other parts of the contact 21 appearing in the cross-sectional view taken along the line BB are omitted.

As shown in FIGS. 17 and 21, in the state where the internal structure 2 (see FIG. 6) is formed, the first contact group 21U is the first ground plate piece 221 and the second ground plate. It is located above the piece 222, and the second contact group 21L is located below the first ground plate piece 221 and the second ground plate piece 222. Further, the first contact group 21U, the second contact group 21L, the first ground plate piece 221 and the second ground plate piece 222 are separated from each other by the housing 23 (see FIG. 7) and insulated from each other. It is held in a state.

As shown in FIGS. 17 and 21, in a state where the internal structure 2 (see FIG. 6) is formed, the main body portion 2211 of the first ground plate piece 221 is a contact of the first contact group 21U. It is located between the contact portion 211U and the horizontally stretched portion 212U of 21 and the contact portion 211L and the horizontally stretched portion 212L of the contact 21 of the second contact group 21L. Further, the main body portion 2221 of the second ground plate piece 222 includes a horizontally stretched portion 212U of the contact 21 of the first contact group 21U, a horizontally stretched portion 212L of the contact 21 of the second contact group 21L, and a downward stretching portion 213L. It is located between the terminal portion 214L and the terminal portion 214L. Therefore, not only the cross talk between the contact portion 211U and the horizontally stretched portion 212U of the contact 21 of the first contact group 21U and the contact portion 211L and the horizontally stretched portion 212L of the contact 21 of the second contact group 21L, but also the first. Cross talk between the horizontally extended portion 212U of the contact 21 of the contact group 21U of 1 and the horizontally extended portion 212L, the downward extending portion 213L, and the terminal portion 214L of the contact 21 of the second contact group 21L can also be suppressed. .. With such a configuration, crosstalk between the upper and lower contacts 21 can be suppressed more effectively.

Further, as shown in FIG. 18, the narrow pitch portion 216 of the high frequency signal contact 21A of the first contact group 21U is the main body portion 2211 of the first ground plate piece 221 and the second ground plate piece 222. It is located above the main body 2221. That is, the narrow pitch region 217 formed by the narrow pitch portions 216 of the two high frequency signal contacts 21A constituting the high frequency signal contact pair CP1 of the first contact group 21U is formed by the main body portion 2211 of the first ground plate piece 221 and the narrow pitch region 217. It is formed so as to straddle both of the main body portions 2221 of the second ground plate piece 222. As described above, since the first ground plate piece 221 and the second ground plate piece 222 are not in contact with each other, the contact 21 is between the first ground plate piece 221 and the second ground plate piece 222. There is a region where there is no metal member to absorb the influence of the current flowing through. In such a region, crosstalk between the upper and lower contacts cannot be suppressed by the first ground plate piece 221 and the second ground plate piece 222. In particular, in such a region, the influence of crosstalk caused by the two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 through which the high-frequency differential signal flows becomes large.

However, in the electric connector 1 of the present invention, the narrow pitch region 217 formed by the narrow pitch portions 216 of the two adjacent high frequency signal contacts 21A of the first contact group 21U is the main body portion of the first ground plate piece 221. It is positioned so as to straddle both the 2211 and the main body 2221 of the second ground plate piece 222. As described above, in the narrow pitch region 217, the effects of noise generated by each of the two high-frequency signal contacts 21A on the other contacts 21 cancel each other out. Therefore, the crosstalk caused by the high frequency signal contact 21A in the narrow pitch region 217 is suppressed. Therefore, crosstalk between the upper and lower high-frequency signal contacts 21A between the first ground plate piece 221 and the second ground plate piece 222 can be suppressed.

On the other hand, as shown in FIG. 19, the narrow pitch portion 216 of the high frequency signal contact 21A of the second contact group 21L is located at a position facing the flow opening 2215 of the main body portion 2221 of the first ground plate piece 221. Is formed in. In other words, the flow of the first ground plate piece 221 is formed at a position facing the two high frequency signal contacts 21A constituting the high frequency signal contact pair CP1 of the first contact group 21U and the second contact group 21L. The high-frequency signal contact 21A of the second contact group 21L has a narrow pitch portion 216 at a position facing the flow opening 2215 of the first ground plate piece 221.

As described above, the narrow pitch portion 216 of the two adjacent high frequency signal contacts 21A of the first contact group 21U is the main body portion 2211 of the first ground plate piece 221 and the main body portion 2221 of the second ground plate piece 222. The narrow pitch portion 216 of the two adjacent high frequency signal contacts 21A of the second contact group 21L is formed so as to face the flow opening 2215 of the first ground plate piece 221. Has been done. Therefore, in a plan view as shown in FIG. 18 or 19, that is, a plan view of the first contact group 21U, the second contact group 21L, and the ground plate 22 viewed from above or below, the first contact group 21U, the second contact group 21L, and the ground plate 22 are viewed from above or below. The narrow pitch portion 216 of the two adjacent high frequency signal contacts 21A of the contact group 21U of 1 does not overlap with the narrow pitch portion 216 of the two adjacent high frequency signal contacts 21A of the second contact group 21L.

As described above, in order to fill the housing 23 with the elastomer material and form the waterproof sealing portion 24, a flow opening 2215 is formed in the first ground plate piece 221. However, since there is no metal member for absorbing the influence of the current flowing through the contact 21 in the region where the flow opening 2215 of the first ground plate piece 221 is formed, crosstalk in the region is suppressed. I can't. In order to deal with such a problem, the electric connector 1 of the present invention has a structure for suppressing crosstalk in the region where the flow opening 2215 of the first ground plate piece 221 is formed, as described below. It has the above characteristics.

FIG. 20 shows a partially enlarged view of the cross-sectional view taken along the line BB of FIG. 18, which is an enlargement of the vicinity of the flow opening 2215 of the first ground plate piece 221. As shown in FIG. 20, the two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 of the first contact group 21U and the second high-frequency signal contact 21A via the flow opening 2215 of the first ground plate piece 221. The two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 of the contact group 21L of 2 are opposed to each other.

Further, in the region facing the flow opening 2215, the center in the width direction of the space between the two high-frequency signal contacts 21A of the first contact group 21U and the two high-frequency signal contacts 21A of the second contact group 21L. The center of the space in the width direction coincides with the center of the flow opening 2215 in the width direction. That is, in the region facing the flow opening 2215, the two high frequency signal contacts 21A of the first contact group 21U, the two high frequency signal contacts 21A of the second contact group 21L, and the flow opening 2215 are centered. Match.

As is clear from FIG. 20, the separation distance W1 between the outer surfaces of the two high-frequency signal contacts 21A of the first contact group 21U facing the flow opening 2215 is larger than the width W3 of the flow opening 2215. The surfaces of the two high-frequency signal contacts 21A facing each other are referred to as the inner surfaces of the two high-frequency signal contacts 21A, and the surfaces opposite to the inner surfaces of the two high-frequency signal contacts 21A are the outer surfaces of the two high-frequency signal contacts 21A. That is.

Since the separation distance W1 between the outer surfaces of the two high-frequency signal contacts 21A of the first contact group 21U is larger than the width W3 of the flow opening 2215, the two high-frequency signal contacts 21A of the first contact group 21U have It is not completely exposed to the flow opening 2215, and a part of the outside faces the main body 2221 of the first ground plate piece 221. Therefore, in the region facing the flow opening 2215, most of the influence of the current flowing through the two high-frequency signal contacts 21A of the first contact group 21U is absorbed by the main body 2221 of the first ground plate piece 221. It will be. Therefore, in the region facing the flow opening 2215, crosstalk due to the current flowing through the two high-frequency signal contacts 21A of the first contact group 21U can be suppressed.

On the other hand, as described above, the two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 of the second contact group 21L have a narrow pitch portion 216 at a position facing the flow opening 2215, and flow. A narrow pitch region 217 of the high frequency signal contact 21A of the second contact group 21L is formed at a position facing the opening 2215. Therefore, in the region facing the flow opening 2215, the separation distance W2 between the outer surfaces of the two high-frequency signal contacts 21A of the second contact group 21L is outside the two high-frequency signal contacts 21A of the first contact group 21U. The separation distance between the side surfaces is smaller than W1.

As described above, in the narrow pitch region 217, the effects of noise generated by each of the two high frequency signal contacts 21A on the other contacts 21 cancel each other out. Therefore, in the narrow pitch region 217, the crosstalk caused by the high frequency signal contact 21A is suppressed. Therefore, in the region facing the flow opening 2215, crosstalk caused by the high frequency signal contact 21A of the second contact group 21L can be suppressed.

In addition, referring to FIG. 20, the separation distance W1 between the outer surfaces of the two high frequency signal contacts 21A of the one high frequency signal contact pair CP1 of the first contact group 21U and the high frequency of one of the second contact group 21L. The relationship between the separation distance W2 between the outer surfaces of the two high frequency signal contacts 21A of the signal contact pair CP1 and the width W3 of the flow opening 2215 facing them has been described, but the other high frequency of the first contact group 21U has been described. The separation distance W1 between the outer surfaces of the two high-frequency signal contacts 21A of the signal contact pair CP1 and the separation distance W2 between the outer surfaces of the two high-frequency signal contacts 21A of the other high-frequency signal contact pair CP1 of the second contact group 21L. The same applies to the relationship between the above and the width W3 of the flow opening 2215 facing them.

As described above, in the electric connector 1 of the present invention, the separation distance W1 between the outer surfaces of the two high-frequency signal contacts 21A of the first contact group 21U and the second contact in the region facing the flow opening 2215. The separation distance W2 between the outer surfaces of the two high-frequency signal contacts 21A of the group 21L is different from each other. Therefore, in the region where the flow opening 2215 is formed, crosstalk between the upper and lower high frequency signal contacts 21A can be effectively suppressed.

Further, in the region facing the flow opening 2215, the separation distance W2 between the outer surfaces of the two high frequency signal contacts 21A of the second contact group 21L is smaller than the width W3 of the flow opening 2215, and the second contact. The two high frequency signal contacts 21A of group 21L are completely exposed to the flow opening 2215. Therefore, as described above, when the elastomer material is filled in the housing 23 through the filling opening 233 of the top housing 23T and the bottom housing 23B to form the waterproof sealing portion 24 in the housing 23, the waterproof sealing is performed. The adhesion of the stop portion 24 to a part of the contact 21 of the first contact group 21U and the second contact group 21L can be improved, and the waterproof performance in the housing 23 can be improved.

As described above, the electrical connector 1 of the present invention has an internal structure 2 including various features for suppressing crosstalk between a plurality of contacts 21. In particular, in the electric connector 1 of the present invention, each of the two high-frequency signal contacts 21A constituting the high-frequency signal contact pair CP1 of the first contact group 21U and the second contact group 21L approaches from one to the other. It has a narrow pitch portion 216, and a narrow pitch region 217 is formed by the narrow pitch portion 216 of the two high frequency signal contacts 21A. By forming the narrow pitch portion 216 in each of the two high frequency signal contacts 21A in this way, crosstalk by the two high frequency signal contacts 21A can be suppressed in the narrow pitch region 217.

Returning to FIG. 6, the shell 3 is a tubular member made of a metal material and covers the internal structure 2 from the outside. The shell 3 houses the internal structure 2 inside while covering the internal structure 2 except for the tip end side and the base end side in the insertion / removal direction (Z direction) of the mating connector. The shell 3 has a tubular main body 31 and an annular locking portion 32 formed so as to project outward from the tip of the outer periphery of the main body 31.

The locking portion 32 is an annular portion formed so as to project outward from the tip of the outer periphery of the main body 31, and an outer waterproof seal member 5 provided so as to cover the tip of the outer circumference of the main body 31 is provided from the tip side. It has a locking function. In the shell 3, the outer diameter of the portion where the locking portion 32 is formed (the outer diameter of the locking portion 32) is larger than the outer diameter of the portion where the locking portion 32 is not formed (the outer diameter of the main body portion 31). ing.

The shield member 4 includes a plurality of contacts 21 and ground plates 22 (first ground plate pieces 221 and second ground plate pieces) of the first contact group 21U and the second contact group 21L of the shell 3 and the internal structure 2. By covering 222) from the outside, it has a function of electromagnetically shielding (EMC) these components.

The shield member 4 is made of a metal material and has a tubular shape corresponding to the shell 3. In a state where the shield member 4 is attached to the shell 3, a space is formed between the tip end portion of the shield member 4 and the locking portion 32 of the shell 3, and the outer waterproof seal member 5 is attached to the space. As shown in FIG. 22, the inner surface of the shield member 4 is in contact with a pair of electrical contact portions 2223 of the second ground plate piece 222. With such a configuration, the ground (grounding) of the second ground plate piece 222 is realized.

Returning to FIG. 6, the outer waterproof seal member 5 is attached to the tip end side on the outer circumference of the main body portion 31 of the shell 3 and is held between the tip end portion of the shield member 4 and the locking portion 32 of the shell 3. .. The outer waterproof seal member 5 is a ring-shaped member made of an elastic material, and when the electric connector 1 is attached to the electronic device, the inside of the electronic device is passed through the gap of the attachment port to which the electric connector 1 is attached. It is used to prevent water from entering the connector.

FIG. 23 shows a cross-sectional view of the electric connector 1. As shown in FIG. 23, the intrusion route of water from the tip side to the base end side inside the housing 23 is blocked by the waterproof sealing portion 24, and the waterproof function in the housing 23 is provided. There is. On the other hand, the water intrusion route from the tip end side to the base end side between the housing 23 and the inner surface of the shell 3 is blocked by the inner waterproof seal member 26, and the waterproof function in the shell 3 is provided. There is. Further, an outer waterproof seal member 5 is attached to the tip end side of the outer periphery of the main body 31 of the shell 3 to prevent water from entering the electronic device to which the electric connector 1 is attached.

<Second Embodiment>
Next, the electric connector according to the second embodiment of the present invention will be described in detail with reference to FIGS. 24 to 26. FIG. 24 is a perspective view of a second ground plate piece of the electric connector according to the second embodiment of the present invention. FIG. 25 is a perspective view of the ground plate of the electric connector according to the second embodiment of the present invention. FIG. 26 is a YZ for showing the positional relationship between the first contact group, the second contact group, the first ground plate piece, and the second ground plate piece in the electric connector according to the second embodiment of the present invention. It is a cross-sectional view in a plane. For the sake of explanation, in FIG. 26, components other than the first contact group 21U, the second contact group 21L, the first ground plate piece 221 and the second ground plate piece 222 are omitted.

Hereinafter, the electric connector 1 of the second embodiment will be described mainly on the differences from the electric connector 1 of the first embodiment, and the same matters will be omitted. The electric connector 1 of the present embodiment has the same configuration as the electric connector 1 of the first embodiment except that the configuration of the second ground plate piece 222 is changed.

FIG. 24 shows the second ground plate piece 222 of the electric connector 1 of the present embodiment. The second ground plate piece 222 of the present embodiment includes a main body portion 2221 on a flat plate and a pair of protruding portions 2222 extending upward (+ Y direction) from both end portions in the width direction (X direction) of the main body portion 2221. , A pair of electrical contact portions 2223 located on both end sides of the main body portion 2221 in the width direction (X direction) and in contact with the first ground plate piece 221 and downward (-Y) from the base end portion of the main body portion 2221. It has a stretched portion 2224 that stretches in the direction).

Since the main body portion 2221 and the pair of protruding portions 2222 are the same as the second ground plate piece 222 of the first embodiment, the description thereof will be omitted. On the other hand, the pair of electrical contact portions 2223 of the second ground plate piece 222 of the present embodiment extend from both end portions in the width direction of the main body portion 2221 toward the tip end side (+ Z direction). As shown in FIG. 25, the pair of electrical contact portions 2223 are in contact with the first ground plate piece 221 instead of the shield member 4. Therefore, in the present embodiment, the second ground plate piece 222 is electrically connected to the first ground plate piece 221.

Further, as shown in FIG. 26, the stretched portion 2224 has a downward stretched portion 213U of the contact 21 of the first contact group 21U and a second contact group 21L in a state where the internal structure 2 is formed. The contact 21 extends downward (-Y direction) from the base end portion of the main body portion 2221 so as to be located between the downward extending portion 213L and the terminal portion 214L. That is, in the state where the internal structure 2 is formed, the stretched portion 2224 has the downward stretched portion 213U of the contact 21 of the first contact group 21U, the downward stretched portion 213L of the contact 21 of the second contact group 21L, and the terminal. It is located between the part 214L.

In the first embodiment, the current flowing through the contact 21 between the downward extending portion 213U of the contact 21 of the first contact group 21U and the downward extending portion 213L and the terminal portion 214L of the contact 21 of the second contact group 21L. There was no metal member to absorb the effect. On the other hand, in the present embodiment, the extension portion 2224 exists between the downward extension portion 213U of the contact 21 of the first contact group 21U and the downward extension portion 213L and the terminal portion 214L of the contact 21 of the second contact group 21L. Therefore, crosstalk between the upper and lower contacts 21 can be suppressed more effectively.

Although the electric connector of the present invention has been described above based on the illustrated embodiment, the electronic device provided with the electric connector of the present invention as described above is also within the scope of the present invention. The electronic device of the present invention includes a housing, a circuit board (not shown) provided in the housing, and the above-mentioned electric connector mounted on the circuit board.

Although the electric connector and the electronic device of the present invention have been described based on the illustrated embodiment, the present invention is not limited thereto. Each configuration of the present invention can be replaced with any configuration capable of exhibiting the same function, or any configuration can be added to each configuration of the present invention.

For example, in each embodiment of the electric connector 1, the second gland plate piece 222 has a pair of protrusions 2222 formed on the lower surface of the first gland plate piece 221 after the top housing 23T is formed by insert molding. It is attached to the top housing 23T by press-fitting into the pair of press-fitting grooves 234, but the present invention is not limited to this. For example, the top housing 23T may be formed by insert molding to hold the first contact group 21U and the second ground plate piece 222.

One of ordinary skill in the art in the field and technology to which the present invention belongs will be able to make the described modifications of the electrical connector configuration of the present invention without significant deviation from the principles, ideas and scope of the present invention. Electrical connectors with modified configurations are also within the scope of the present invention. For example, an aspect in which the electric connectors of the first embodiment and the second embodiment are arbitrarily combined is also within the scope of the present invention.

Further, the number and types of components of the electric connector shown in FIGS. 4 to 26 are merely examples for explanation, and the present invention is not necessarily limited to this. It is also within the scope of the present invention that any component is added or combined, or any component is deleted without departing from the principle and intention of the present invention.

1 ... Electric connector 2 ... Internal structure 21 ... Contact 21A ... High frequency signal contact 21B ... Normal signal contact 21C ... Non-signal contact 21U ... First contact group 21L ... Second contact group 211U, 211L ... Contact parts 212U, 212L ... Horizontal extension portion 2121 ... Outer extension portion 213U, 213L ... Downward extension portion 214U, 214L ... Terminal portion 215U, 215L ... Tie bar cut mark 216 ... Narrow pitch portion 2161 ... Approach portion 2162 ... Straight portion 217 ... Narrow pitch region 22 ... Ground Plate 221 ... First ground plate piece 2211 ... Main body 2212 ... Terminal 2213 ... Positioning hole 2214 ... Tie bar cut hole 2215 ... Flow opening 222 ... Second ground plate piece 2221 ... Main body 2222 ... Projection 2223 ... Electricity Target contact part 2224 ... Extension part 23 ... Housing 23B ... Bottom housing 23T ... Top housing 231 ... Base part 232 ... Tongue-shaped part 2321 ... Positioning hole 2322 ... Tie bar cut hole 233 ... Filling opening 234 ... Press-fit groove 24 ... Waterproof sealing part 25 ... Outer mold 26 ... Inner waterproof seal member 3 ... Shell 31 ... Main body 32 ... Locking part 4 ... Shield member 5 ... Outer waterproof seal member 800 ... Electric connector 810 ... Shell 820 ... Internal structure 830 ... Contact 830U ... No. 1 contact group 830L ... 2nd contact group 831 ... Contact part 832 ... Horizontal extension part 833 ... Downward extension part 834 ... Terminal part 840 ... Ground plate 850 ... Housing 850T ... Top housing 850B ... Bottom housing CP1 ... High frequency signal contact pair CP2 ... Normal signal contact pair W1 ... Separation distance W2 ... Separation distance W3 ... Width

Claims (13)

An electrical connector that can be fitted with the mating connector inserted from the tip side.
A contact group composed of a plurality of contacts arranged on a contact plane and extending linearly along the insertion / extraction direction of the mating connector, and a contact group.
Including a ground plate arranged on a ground plane facing the contact plane,
The contact group includes a signal contact pair for transmitting a differential signal.
Each of the two contacts constituting the signal contact pair has a narrow pitch portion that approaches from one to the other.
An electric connector characterized in that the separation distance between the narrow pitch portions of the two contacts constituting the signal contact pair is smaller than the separation distance between the other portions of the two contacts. Each of the contacts in the contact group is located on the tip side and comes into contact with the mating connector, a horizontally extending portion extending horizontally from the contact portion to the proximal end side, and the horizontally extending portion. It has a downward extending portion that extends downward and a terminal portion that extends from the downward extending portion to the proximal end side.
The electric connector according to claim 1, wherein the narrow pitch portion of each of the two contacts of the signal contact pair is formed in the horizontally extended portion. The ground plate has an opening facing the two contacts of the signal contact pair.
The electrical connector according to claim 1 or 2, wherein the narrow pitch portion of each of the two contacts of the signal contact pair faces the opening of the ground plate. The electrical connector according to claim 3, wherein the width of the narrow pitch portion of each of the two contacts of the signal contact pair is smaller than the width of the opening of the ground plate. The signal contact pair of the contact group transmits a normal signal contact pair composed of two normal signal contacts for transmitting a differential signal of a normal frequency and a high frequency differential signal higher than the normal frequency. Includes a high frequency signal contact pair consisting of two high frequency signal contacts for
The electrical connector according to claim 3 or 4, wherein the two high-frequency signal contacts constituting the high-frequency signal contact pair face the opening of the ground plate. The narrow pitch portion has an approaching portion that approaches from one of the two contacts of the signal contact pair toward the other, and a straight portion that extends from the approaching portion along the insertion / extraction direction. Item 4. The electric connector according to any one of Items 1 to 5. The electrical connector according to claim 6, wherein the length of the straight portion of the narrow pitch portion of each of the two contacts of the signal contact pair is at least twice the width of the contact. The electrical connector according to claim 6 or 7, wherein the distance between the straight portions of the narrow pitch portions of the two contacts of the signal contact pair is 1.5 times or less the width of the contacts. An electrical connector that can be fitted with the mating connector inserted from the tip side.
A first contact group composed of a plurality of contacts arranged on the first contact plane and extending linearly along the insertion / removal direction of the mating connector, and a first contact group.
A second contact group composed of a plurality of contacts arranged on a second contact plane facing the first contact plane and extending linearly along the insertion / removal direction of the mating connector, and a second contact group.
Between the first contact plane and the second contact plane, the first contact plane and a ground plate arranged on a ground plane facing the second contact plane are included.
Each of the first contact group and the second contact group includes a signal contact pair for transmitting a differential signal.
Each of the two contacts constituting the signal contact pair of the first contact group and the second contact group has a narrow pitch portion approaching from one to the other.
The separation distance between the narrow pitch portions of the two contacts constituting the signal contact pair of the first contact group and the second contact group is the separation distance between the other parts of the two contacts. An electrical connector characterized by being smaller than. The ground plate has an opening facing the two contacts of the signal contact pair of each of the first contact group and the second contact group.
The electrical connector according to claim 9, wherein the narrow pitch portion of each of the two contacts of the signal contact pair of the second contact group faces the opening of the ground plate. The narrow pitch portion of each of the two contacts of the signal contact pair of the first contact group does not face the opening of the ground plate.
In a plan view, the narrow pitch portion of each of the two contacts of the signal contact pair of the first contact group and the narrow pitch portion of each of the two contacts of the signal contact pair of the second contact group. The electric connector according to claim 10, which does not overlap with the pitch portion. Each of the signal contact pairs of the first contact group and the second contact group includes a normal signal contact pair composed of two normal signal contacts for transmitting a differential signal of a normal frequency, and the above-mentioned normal signal contact pair. It includes a high frequency signal contact pair consisting of two high frequency signal contacts for transmitting high frequency differential signals higher than normal frequencies.
30. The two high-frequency signal contacts constituting the high-frequency signal contact pair of the first contact group and the second contact group, respectively, face the opening of the ground plate according to claim 10 or 11. Electrical connector. With the housing
The circuit board provided in the housing and
An electronic device mounted on the circuit board, comprising the electrical connector according to any one of claims 1 to 12.

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