JP7397295B2 - electrical connectors and electronic devices - Google Patents

Description

The present invention generally relates to electrical connectors and electronic devices including the electrical connectors, and more particularly, the present invention relates to electrical connectors and electronic devices including the electrical connectors, and more particularly, to suppress crosstalk caused by two contacts for transmitting differential signals. TECHNICAL FIELD The present invention relates to an electrical connector including two contacts having narrow pitch portions approaching one another and an electronic device including the electrical connector.

Conventionally, electrical connectors are used to electrically connect electronic devices to other electronic devices. An insertion port that is mounted on a circuit board provided in the casing of an electronic device and inserted through a through hole provided in the casing of the electronic device in order to obtain an electrical connection between the electronic device and another electronic device. Two types of electrical connectors are used in combination: a receptacle connector that is exposed to the outside of the electronic device, and a plug connector that is inserted into the insertion port of the receptacle connector.

Further, with the recent miniaturization of electronic devices, there is an increasing demand for miniaturization of electrical connectors. In response to such demands for miniaturization of electrical connectors, the USB Type-C standard has been proposed (see Patent Document 1 and Patent Document 2). Electrical connectors that comply with the USB Type-C standard have a vertically symmetrical design, making it possible to insert a plug connector into a 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. Electrical connector 800 includes a metal shell 810 and an internal structure 820 housed inside shell 810. As shown in FIG. 2, the internal structure 820 includes a first contact group 830U composed of a plurality of contacts 830 arranged on a first contact plane and a first contact group 830U arranged on a second contact plane. a second contact group 830L made up of a plurality of contacts 830, a ground plate 840 disposed 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 a ground plate 840.

Further, each of the first contact group 830U and the second contact group 830L is a high-frequency signal contact pair consisting of two contacts for transmitting a high-frequency differential signal with a mating connector. A pair of normal signal contacts consisting of two normal signal contacts for transmitting a differential signal of normal frequency between the connector and the mating connector, and a plurality of non-signal contacts used for purposes other than signal transmission. Contains contacts.

Housing 850 includes a top housing 850T integrally molded with first contact group 830U, and a bottom housing 850B integrally molded with second contact group 830L and ground plate 840. The top housing 850T is obtained by insert molding a plurality of contacts 830 arranged on a 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. . Housing 850 is obtained by overmolding top housing 850T and bottom housing 850B.

FIG. 3 shows a cross-sectional view of the electrical connector 800 of FIG. 1 taken along line AA. As shown in FIG. 3, each of the plurality of contacts 830 of the first contact group 830U and the second contact group 830L has a contact portion 831 that contacts a contact of a mating connector, and a base from the contact portion 831. It has a horizontal extension part 832 extending horizontally to the end side, a downward extension part 833 extending downward from the horizontal extension part 832, and a terminal part 834 extending from the downward extension part 833 to the proximal end side.

A receptacle connector conforming to the USB Type-C standard, such as the electrical connector 800, is very small, and the distance between the contacts 830 of the first contact group 830U and the contacts 830 of the second contact group 830L is short. Therefore, crosstalk that occurs between the upper and lower contacts 830 when current flows through the contacts 830 of the first contact group 830U and the contacts 830 of the second contact group 830L becomes a problem. In particular, since a differential signal of a certain frequency or more flows through the high frequency signal contact pair and the normal signal contact pair, the influence of crosstalk due to 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 electrical connector 800, it is particularly necessary to suppress crosstalk caused by the high frequency signal contact pair and the normal signal contact pair.

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

Furthermore, due to recent improvements in the computing power of processors, larger capacities of storage devices such as memories, and improved communication speeds, the amount of data transmitted and received using connectors such as the electrical connector 800 is increasing. Therefore, in particular, the frequency of differential signals transmitted by high-frequency signal contact pairs tends to increase. As the frequency of the differential signal transmitted by the high-frequency signal contact pair increases, the influence of crosstalk due to the high-frequency signal contact pair also increases. This increased crosstalk effect due to the high frequency signal contact pair degrades the electrical characteristics of the electrical connector 800. Therefore, there is a particular need for a technique for suppressing crosstalk caused by high frequency signal contact pairs.

Japanese Patent Application Publication No. 2018-170195 Japanese Patent Application Publication No. 2019-57501

The present invention has been made in view of the above conventional problems, and its object is to provide an electrical connector capable of suppressing crosstalk caused by two contacts for transmitting differential signals, and an electronic device including the electrical connector. Our goal is to provide the following.

These objects are achieved by the following (1) to (7) of the present invention.
( 1 ) An electrical connector that can be mated with a mating connector inserted from the tip side,
a first contact group composed of a plurality of contacts arranged on a first contact plane and extending linearly along the insertion/extraction direction of the mating connector;
A plurality of contacts are located below the first contact plane, are arranged on a second contact plane facing the first contact plane, and extend linearly along the insertion/extraction direction of the mating connector. a second contact group consisting of contacts;
a ground plate disposed between the first contact plane and the second contact plane on a ground plane facing the first contact plane and the second contact plane,
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 each of the first contact group and the second contact group has a narrow pitch portion that approaches from one side toward the other,
The separation distance between the narrow pitch parts of the two contacts constituting the signal contact pair of each of the first contact group and the second contact group is the separation distance between other parts of the two contacts. smaller than
In a plan view seen from above and below perpendicular to the insertion/extraction direction of the mating connector, the narrow pitch portions of each of the two contacts of the signal contact pair of the first contact group and the second contact An electrical connector characterized in that the narrow pitch portions of each of the two contacts of the signal contact pair of the group do not overlap .

( 2 ) the ground plate has an opening that faces 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 ( 1 ) 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.

( 3 ) The electrical connector according to ( 2 ) above, wherein the narrow pitch portions of the two contacts of the signal contact pair of the first contact group do not face the opening of the ground plate.

( 4 ) Each of the signal contact pairs of the first contact group and the second contact group is a normal signal contact pair consisting 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 ( 2 ) or ( 3 ) above. ) Electrical connectors listed in ).
(5) the narrow pitch portion of each of the two contacts of the signal contact pair of the first contact group extends only on the first contact plane;
In any one of (1) to (4) above, the narrow pitch portion of each of the two contacts of the signal contact pair of the second contact group extends only on the second contact plane. Electrical connectors listed.
(6) Each of the contacts of the first contact group and the second contact group has a contact portion that is located on the distal end side and contacts the mating connector, and a contact portion that extends horizontally from the contact portion to the proximal end side. a horizontally extending portion extending downward from the horizontally extending portion, a downwardly extending portion extending downward from the horizontally extending portion, and a terminal portion extending from the downwardly extending portion toward the proximal end side;
the horizontally extending portions of the contacts of the first contact group extend only on the first contact plane;
The narrow pitch portion of each of the two contacts of the signal contact pair of the first contact group is formed in the horizontally extending portion of the contact of the signal contact pair of the first contact group,
the horizontally extending portions of the contacts of the second contact group extend only on the second contact plane;
The narrow pitch portion of each of the two contacts of the signal contact pair of the second contact group is formed in the horizontally extending portion of the contact of the signal contact pair of the second contact group. The electrical connector according to any one of (1) to (5).

( 7 ) A casing;
a circuit board provided within the housing;
An electronic device comprising: the electrical connector according to any one of (1) to ( 6 ) above, mounted on the circuit board.

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 approaches from one side toward the other. With such a configuration, crosstalk in the narrow pitch portion of the signal contacts can be suppressed, and the electrical performance of the electrical connector can be improved.

FIG. 1 is a perspective view of a conventional electrical connector. FIG. 2 is an exploded perspective view of the housing of the electrical connector shown in FIG. 1; 2 is a sectional view taken along line AA of the electrical connector in FIG. 1. FIG. FIG. 1 is a perspective view of an electrical connector according to a first embodiment of the present invention. FIG. 5 is a perspective view of the electrical connector shown in FIG. 4 from another angle. 5 is an exploded perspective view of the electrical connector shown in FIG. 4. FIG. 7 is an exploded perspective view of the internal structure shown in FIG. 6. FIG. FIG. 7 is a perspective view of a first contact group of the internal structure shown in FIG. 6; 9 is a plan view of the first contact group shown in FIG. 8. FIG. FIG. 7 is a perspective view of a second group of contacts of the internal structure shown in FIG. 6; 11 is a plan view of the second contact group shown in FIG. 10. FIG. 7 is a plan view of the ground plate of the internal structure shown in FIG. 6. FIG. FIG. 7 is a plan view showing the lower surface of the top housing of the internal structure shown in FIG. 6; 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. 13. FIG. 7 is a plan view showing the top surface of the bottom housing of the internal structure shown in FIG. 6. 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. 15. FIG. 6 is a perspective view showing the positional relationship of the first contact group, the second contact group, the first ground plate piece, and the second ground plate piece in a state where the internal structure shown in FIG. 6 is formed; FIG. be. FIG. 18 is a plan view of the perspective view shown in FIG. 17 viewed from above. FIG. 18 is a plan view of the perspective view shown in FIG. 17 viewed from below. A cross section taken along the line BB in FIG. 18 to show the relationship between the separation distance between the high-speed signal contact pairs 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. 19 is a sectional view taken along line CC in FIG. 18. FIG. FIG. 6 is a partially enlarged view showing contact between the second ground plate piece and the shield member. FIG. 5 is a cross-sectional view of the electrical connector shown in FIG. 4 in the YZ plane. It is a perspective view of the 2nd ground plate piece of the electrical connector based on 2nd Embodiment of this invention. It is a perspective view of the ground plate of the electrical connector based on 2nd Embodiment of this invention. A cross section in the YZ plane 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 electrical connector according to the second embodiment of the present invention. It is a diagram.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The electrical connector and electronic device of the present invention will be described below based on preferred embodiments shown in the accompanying drawings. Note that each figure referred to below is a schematic diagram prepared for explaining the present invention. The dimensions (length, width, thickness, etc.) of each component shown in the drawings do not necessarily reflect actual dimensions. Also, in each figure, identical or corresponding elements are provided with the same reference numerals. In the following explanation, the positive direction of the Z-axis in each figure is referred to as the "distal side," the negative direction of the Z-axis is referred to as the "proximal side," and the positive direction of the Y-axis is referred to as the "upper side." The negative direction is sometimes called the "lower side," the positive direction of the X-axis is sometimes called the "front side," and the negative direction of the X-axis is sometimes called the "back side." Further, the Z direction is sometimes referred to as "the mating connector insertion/removal direction."

<First embodiment>
First, an electrical connector according to a 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 electrical connector according to the first embodiment of the invention. FIG. 5 is a perspective view of the electrical connector shown in FIG. 4 from another angle. FIG. 6 is an exploded perspective view of the electrical connector shown in FIG. 4. FIG. 7 is an exploded perspective view of the internal structure shown in FIG. 6. 8 is a perspective view of the first contact group of the internal structure shown in FIG. 6. FIG. FIG. 9 is a plan view of the first contact group shown in FIG. 8. 10 is a perspective view of the second contact group of the internal structure shown in FIG. 6. FIG. FIG. 11 is a plan view of the second contact group shown in FIG. 10. FIG. 12 is a plan view of the ground plate of the internal structure shown in FIG. 6. 13 is a plan view showing the lower surface of the top housing of the internal structure shown in FIG. 6. FIG. FIG. 14 is a plan view of the top housing in which the first contact group and the second ground plate piece are held by the top housing shown in FIG. 13. 15 is a plan view showing the top surface of the bottom housing of the internal structure shown in FIG. 6. FIG. FIG. 16 is a plan view of the bottom housing in which the second contact group and the first ground plate piece are held by the bottom housing shown in FIG. 15. FIG. 17 shows the positional relationship between the first contact group, the second contact group, the first ground plate piece, and the second ground plate piece when the internal structure shown in FIG. 6 is formed. FIG. FIG. 18 is a plan view of the perspective view shown in FIG. 17 viewed from above. FIG. 19 is a plan view of the perspective view shown in FIG. 17 viewed from below. FIG. 20 shows the relationship between the distance between the high-speed signal contact pairs 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 B line sectional view. FIG. 21 is a sectional view taken along the line CC in FIG. 18. FIG. 22 is a partially enlarged view showing the contact between the second ground plate piece and the shield member. FIG. 23 is a cross-sectional view of the electrical connector shown in FIG. 4 in the YZ plane.

The electrical connector 1 according to the first embodiment of the present invention shown in FIG. 4 is an electrical connector with a waterproof function that has been subjected to waterproof treatment, and is further configured to comply with the specifications defined by the USB Type-C standard. ing. For example, the electrical 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 e-book reader. be done. A mating connector is inserted from the tip side (+Z direction side) of the electrical connector 1, and electrical connection between the mating connector and the electrical connector 1 is provided.

The electrical connector 1 of the present invention is configured to comply with the specifications defined by the USB Type-C standard. Therefore, the electrical connector 1 includes a first contact group 21U and a second contact group 21L, which are arranged on the upper and lower surfaces of an insulating housing 23 and are vertically symmetrically opposed to each other with the ground plate 22 interposed therebetween. The electrical 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 electrical connector 1 of the present invention, as shown in FIGS. 8 and 10, two high-frequency signal contact pairs CP1 are 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 high frequency signal contacts 21A has a narrow pitch portion 216 that approaches from one side toward the other, and a narrow pitch region 217 is formed by the narrow pitch portions 216 of the two high frequency signal contacts 21A. There is. Although the reason will be described later, by forming the narrow pitch portion 216 in each of the two high frequency signal contacts 21A, crosstalk caused by the two high frequency signal contacts 21A can be suppressed in the narrow pitch region 217.

As shown in FIG. 6, the electrical 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 metal shell 3 that covers the internal structure 2 from the outside. The outer waterproof seal member 5 is attached to the outer peripheral tip side portion of the main body portion 31 and is held between the locking portion 32 of the shell 3 and the shield member 4.

As shown in FIG. 7, the internal structure 2 has a first contact group 21U composed of a plurality of contacts 21 arranged on a first contact plane, and a first contact group 21U that faces the first contact plane. A second contact group 21L made up of a plurality of contacts 21 arranged on a second contact plane, and a contact between the first contact plane and the second contact plane. A ground plate 22 located on a ground plane opposite to the contact plane, a first contact group 21U, a second contact group 21L, and an insulating housing 23 holding the ground plate 22; A waterproof sealing portion 24 that is in close contact with each of the contacts 21 of the contact group 21U and the second contact group 21L to liquid-tightly seal the inside of the housing 23, and an outer mold 25 formed on the outside of the housing 23. and an inner waterproof seal member 26 attached to 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 viewed from above. The first contact group 21U is made up of a plurality of (12 in the illustrated form) contacts 21 arranged on a first contact plane located above (in the +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 on the first contact plane along the They are held apart and insulated.

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 side (+Z direction side) that contacts a contact of the mating connector, and a contact portion 211U on the distal side (+Z direction side) that contacts the contacts of the mating connector, and a contact portion 211U on the proximal side (−Z direction side) from the contact portion 211U. During insert molding of the horizontally extending portion 212U extending horizontally, the downwardly extending portion 213U extending downward from the horizontally extending portion 212U, the terminal portion 214U extending toward the proximal side from the downwardly extending portion 213U, and the top housing 23T. It has a tie bar cut mark 215U formed by punching out the connecting portion connecting each of the plurality of contacts 21 of the first contact group 21U by tie bar cutting.

The contact portion 211U of the contact 21 of the first contact group 21U is connected to the mating connector when the mating connector is inserted from the distal end side through the distal opening of the shell 3 in the assembled state of the electrical connector 1. Contact with the corresponding contact. At this time, the mating connector and the electrical connector 1 are brought into a fitted state, and electrical connection between the mating connector and the electrical connector 1 is provided. The horizontally extending portion 212U of the contact 21 of the first contact group 21U extends horizontally from the base end of the contact portion 211U toward the base end side (−Z direction). The horizontally extending portion 212U is embedded in the top housing 23T, and the contacts 21 are fixedly held by the top housing 23T. The contact portion 211U and the horizontal extension portion 212U are located on the first contact plane.

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

The tie bar cut marks 215U of the contacts 21 of the first contact group 21U are formed by tie bar cutting performed after insert molding of the top housing 23T. During insert molding of the top housing 23T, in order to prevent the plurality of contacts 21 of the first contact group 21U from shifting or tilting in the top housing 23T, each of the plurality of contacts 21 is connected to each other by a connecting portion. There is. Therefore, after insert molding the top housing 23T, a tie bar cut is performed to punch out the connecting portions connecting each of the plurality of contacts 21 of the first contact group 21U and to separate the plurality of contacts 21 from each other. The tie bar cut marks 215U of the contacts 21 of the first contact group 21U are the remaining portions of the connection parts 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 high-frequency differential signals with a mating connector. A pair of normal signal contacts CP2 consisting of a pair CP1 and two normal signal contacts 21B for transmitting a differential signal of a normal frequency between a mating connector and a pair CP2 used for purposes other than signal transmission. A plurality of non-signal contacts 21C are included.

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

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

In this way, the first contact group 21U includes contacts 21 used for various purposes. Furthermore, the USB Type-C standard specifies that the distances (pitch) between the contact portions 211U of the plurality of contacts 21 must be equal (equal pitch). Furthermore, the pitch length of the contact portions 211U of the plurality of contacts 21 is also strictly determined by the USB Type-C standard. In addition, the distance between the terminal portions 214U of the plurality of contacts 21 is determined to ensure accuracy of connection to the circuit board of the electronic device (for example, connection by soldering), prevention of short circuits between the contacts 21, etc. From this point of view, it will be set as appropriate.

Two adjacent high frequency signal contacts 21A forming the high frequency signal contact pair CP1 are used to transmit high frequency differential signals. 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 electromagnetism, the direction of noise caused by a current flowing in a conductor depends on the direction of the current flowing in the conductor. Therefore, when a pair of conductors through which currents flow in opposite directions are placed close to each other, the effects of noise on other contacts 21 caused by the currents flowing in the pair of conductors cancel each other out.

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

The narrow pitch portions 216 of each of the two high frequency signal contacts 21A have two approaching portions 2161 that approach from one high frequency signal contact 21A to the other high frequency signal contact 21A, and high frequency signals between the two approaching portions 2161. It has a straight portion 2162 extending horizontally along the extending direction of the contact 21A (the insertion/extraction direction of the mating connector, ie, the Z direction).

As mentioned above, the distance (pitch) between the contact portions 211U of the two high-frequency signal contacts 21A is determined by the USB Type-C standard, and the distance between the terminal portions 214U is determined by the pitch between the contact portions 211U of the two high-frequency signal contacts 21A. It is set as appropriate from the viewpoint of execution accuracy of connection (for example, connection by soldering) to the connection (for example, connection by soldering) and prevention of short circuit between the 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 or the terminal portion 214U. Therefore, in the electrical connector 1 of the present invention, there are no restrictions from the viewpoints of USB Type-C standards, execution accuracy, short circuit prevention between the contacts 21, etc., and there is a degree of freedom in design. A narrow pitch region 217 is formed in 212U.

In the narrow pitch region 217, the distance between the straight portions 2162 of the narrow pitch portions 216 of the two high frequency signal contacts 21A is smaller than the distance between the other portions of the two high frequency signal contacts 21A. As described above, high-frequency differential signals, that is, currents in opposite directions flow 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 current flowing through 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 distance between the straight portions 2162 of the narrow pitch portion 216 is smaller than the distance between the other portions. Therefore, in the narrow pitch region 217, the influence of noise on the other contacts 21 caused by the current (differential signal) flowing in each of the two high frequency signal contacts 21A cancels out. 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 is as follows: This is smaller than the effect on the contact 21.

As is well known, between two contacts 21 arranged apart from each other (for example, contacts 21 of a first contact group 21U and contacts 21 of a second contact group 21L arranged vertically). The crosstalk is caused by a current flowing through one contact 21 affecting the other contact 21, and a current being generated within the other contact 21 due to electromagnetic induction. Therefore, in order to suppress crosstalk between the two contacts 21, it is useful to absorb or reduce the influence of the current flowing through one of the contacts 21.

In the narrow pitch region 217, the distance between the straight portions 2162 of the narrow pitch portions 216 of the two high frequency signal contacts 21A is smaller than the distance between the other portions of the two high frequency signal contacts 21A, and The effects of noise on other contacts 21 caused by currents (differential signals) flowing through each of the high-frequency signal contacts 21A 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 distance between the straight portion 2162 of the narrow pitch portion 216 of the high frequency signal contact 21A and the horizontal extension portion 212U of the adjacent non-signal contact 21C is the same as that of the high frequency signal contact 21A. It is larger than the separation distance between the other portion of the signal contact 21A and the horizontally extending portion 212U of the adjacent non-signal contact 21C. From the viewpoint of crosstalk suppression, 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 distance between the straight portions 2162 of the narrow pitch portions 216 of the two high frequency signal contacts 21A is too small, the risk of short-circuiting between the two high frequency signal contacts 21A increases, and Since there are disadvantages such as changes in impedance, reflection of the high frequency signal contacts 21A, and increases in insertion loss, the distance between the straight portions 2162 of the narrow pitch portions 216 of the two high frequency signal contacts 21A is The electrical characteristics of the electrical connector 1 are set appropriately so that the electrical characteristics of the electrical connector 1 are most preferable, taking into consideration a plurality of factors including the disadvantages of. However, although it depends on the design balance of the electrical connector 1 such as the overall size of the electrical connector 1 and the width, length, and thickness of the contacts 21, in order to substantially obtain the crosstalk suppressing effect by the narrow pitch region 217, The 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 more preferably 1. More preferably, it is 0 times or less.

Similarly, from the viewpoint of crosstalk suppression, the longer the length of the straight portion 2162 of the narrow pitch portion 216 of the two high frequency signal contacts 21A (the length in the Z direction), the better. However, the length of the contact portion 211U (length in the Z direction) is determined by the USB Type-C standard, and the overall length of the electrical connector 1 is limited because it is incorporated into an electronic device. Therefore, the length of the straight portion 2162 is set as appropriate. However, although it depends on the design balance of the electrical connector 1 such as the overall size of the electrical connector 1 and the width, length, and thickness of the contacts 21, in order to substantially obtain the crosstalk suppressing effect by the narrow pitch region 217, The length of the straight portion 2162 is preferably at least twice the width (length in the X direction) of the high frequency signal contact 21A, and more preferably at least five times.

As described above, in the electrical 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 narrow pitch portions 216 that approach each other from one side toward the other. , a narrow pitch region 217 is formed by the narrow pitch portions 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 electrical 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 approaches from one side toward the other, and the narrow pitch portions 216 of the two high frequency signal contacts 21A are A narrow pitch region 217 is formed by the pitch portion 216 . Therefore, crosstalk between the plurality of contacts 21 can be suppressed more effectively than when providing narrow pitch portions 216 in two other adjacent contacts 21. Note that 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, an embodiment in which the normal signal contact 21B has a narrow pitch portion 216 like the high frequency signal contact 21A 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 viewed from above. The second contact group 21L includes a plurality of contacts (12 in the illustrated form) arranged on a second contact plane located below (in the -Y direction) the ground plane on which the ground plate 22 is arranged. It consists 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 parallel to each other on the lower surface of the bottom housing 23B (see FIGS. 6 and 7) of the housing 23. They are held apart and insulated.

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 contact portion 211L on the proximal side (−Z direction side) from the contact portion 211L. ), a downwardly extending portion 213L extending downward from the horizontally extending portion 212L, a terminal portion 214L extending toward the base end from the downwardly extending portion 213L, and an insert of the bottom housing 23B. Tie bar cut marks 215L are formed by punching out connection parts connecting each of the plurality of contacts 21 of the second contact group 21L by tie bar cutting during molding.

However, the length of each of the plurality of contacts 21 in the second contact group 21L is shorter than the length of each of the plurality of contacts 21 in the first contact group 21U. Further, the horizontally extending portion 212L of the plurality of contacts 21 of the second contact group 21L has an outer extending portion 2121 extending outward from the center of the electrical connector 1 in the width direction (X direction). Therefore, as shown in FIG. 19, in 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. It is located in Returning to FIG. 10, the amount of downward (-Y direction) stretching of the downwardly extending portion 213L of the plurality of contacts 21 in the second contact group 21L is the downwardly extending portion 213U of the plurality of contacts 21 in the first contact group 21U. less than the amount of downward stretching.

The function of each of the plurality of contacts 21 in the second contact group 21L is the same as the function of each of the plurality of contacts 21 in the first contact group 21U described above. Specifically, like the first contact group 21U, the second contact group 21L is composed of two high-frequency signal contacts 21A for transmitting high-frequency differential signals with the mating connector. Signal transmission A plurality of non-signal contacts 21C used for purposes other than those described above are included. Furthermore, the arrangement of the high frequency signal contacts 21A, normal signal contacts 21B, and non-signal contacts 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 that constitute the high frequency signal contact pair CP1 of the first contact group 21U, each of the two high frequency signal contacts 21A that constitute the high frequency signal contact pair CP1 of the second contact group 21L, It has narrow pitch portions 216 that are close to each other from one side to the other, and a narrow pitch region 217 is formed by the narrow pitch portions 216 of the two high frequency signal contacts 21A.

Note that in the high frequency signal contacts 21A of the second contact group 21L, the outer extending portion 2121 is formed at the proximal end portion of the horizontally extending portion 212L, so that the narrow pitch of the high frequency signal contacts 21A of the second contact group 21L is The section 216 includes one approach section 2161 and a straight section 2162.

The first contact group 21U and the second contact group 21L are connected to the contact portion 211U of the contacts 21 of the first contact group 21U and the second contact group when viewed from the front side (mating connector side) of the electrical connector 1. The contact portions 211L of the contacts 21L are arranged vertically symmetrically with the ground plate 22 interposed therebetween.

In addition, the tip side portions of the contact portions 211U, 211L and horizontal extension portions 212U, 212L of the first contact group 21U and second contact group 21L (from the outer extension portion 2121 of the horizontal extension portion 212L of the second contact group 21L) (tip side portions) are opposed to each other with the ground plate 22 interposed therebetween. Such crosstalk between the vertically opposing contacts 21 adversely affects the electrical characteristics of the electrical connector 1.

As described above, the crosstalk caused by the high-frequency signal contacts 21A for transmitting high-frequency differential signals has a large effect on the electrical characteristics of the electrical connector 1. In the electrical 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 narrow pitches that are adjacent to each other from one side toward the other. A narrow pitch region 217 is formed by the narrow pitch portions 216 of the two high frequency signal contacts 21A. Therefore, in the narrow pitch region 217, crosstalk caused by the high frequency signal contacts 21A can be effectively suppressed, and the electrical characteristics of the electrical connector 1 can be improved.

FIG. 12 shows a plan view of the ground plate 22 viewed from above. The ground plate 22 is arranged between the first contact plane where the first contact group 21U is arranged and the second contact plane where the second contact group 21L is arranged. It is located on a ground plane parallel to both contact planes. The ground plate 22 absorbs the influence of the current flowing through one of the contacts 21 of the first contact group 21U and the second contact group 21L, which are arranged vertically, so that the current flowing through one contact 21 is This prevents the contacts 21 from affecting the contacts 21, and suppresses crosstalk between the contacts 21 arranged vertically.

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

The main body portion 2211 of the first ground plate piece 221 is parallel to the plane (first contact plane and second contact plane) on which the plurality of contacts 21 are arranged on the upper surface of the bottom housing 23B of the housing 23. It is set up so that Further, when the bottom housing 23B of the housing 23 is insert-molded to hold the second contact group 21L and the first ground plate piece 221, the plurality of contacts 21 of the second contact group 21L are inserted into the main body portion 2211. a plurality of positioning holes 2213 through which pins are inserted for positioning, and a plurality of contacts 21 of the second contact group 21L that are connected to each other via connecting portions during insert molding of the bottom housing 23B of the housing 23. The top housing 23T and bottom housing 23B of the housing 23 are punched out, and a plurality of tie bar cut holes 2214 are used to perform tie bar cutting to separate the plurality of contacts 21 of the second contact group 21L from each other. When the elastomer material is filled into the housing 23 in order to form a waterproof seal 24 inside the housing 23 when the elastomer material is in close contact with the housing 23, a plurality of flows are performed to ensure fluidity of the elastomer material within the housing 23. an opening 2215.

The positioning holes 2213 are for positioning each of the plurality of contacts 21 of the second contact group 21L when insert molding the bottom housing 23B to hold the second contact group 21L and the first ground plate piece 221. The main body portion 2211 is formed to allow a positioning pin to be inserted therethrough. Note that when insert molding the bottom housing 23B, positioning pins for positioning each of the plurality of contacts 21 of the second contact group 21L are provided in addition to the positioning hole 2213, the tie bar cut hole 2214, and the flow opening. 2215. The number, position, and shape of the positioning holes 2213 in the main body portion 2211 are not particularly limited, and are appropriately set according to necessity when insert molding the bottom housing 23B.

When insert-molding the bottom housing 23B, the tie bar cut holes 2214 are formed by punching out the connecting portions of the plurality of contacts 21 of the second contact group 21L that are connected to each other via the connecting portions. The main body portion 2211 is formed to perform a tie bar cut to separate the plurality of contacts 21 from each other. When insert molding the bottom housing 23B, the plurality of contacts 21 of the second contact group 21L are positioned using the positioning pins as described above, but in order to position the plurality of contacts 21 more accurately. In this case, it is preferable to hold the plurality of contacts 21 in a state where they are connected to each other at their root portions. Therefore, at the time of insert molding the bottom housing 23B, the plurality of contacts 21 of the second contact group 21L are connected to each other by a connecting portion provided in the horizontally extending portion 212L. In the illustrated form, among the plurality of contacts 21 constituting the second contact group 21L, two high frequency signal contacts 21A constituting the high frequency signal contact pair CP1 and two non-contact contacts located on the left and right sides of the high frequency signal contact pair CP1 are shown. The signal contacts 21C are connected to each other by a connecting portion, and constitute a first contact component and a second contact component, respectively. Specifically, in FIGS. 10 and 11, the first contact component includes two high-frequency signal contacts 21A constituting high-frequency signal contact pair CP1 located on the positive side of the X-axis; It is composed of two non-signal contacts 21C located on the left and right. On the other hand, the second contact components include two high-frequency signal contacts 21A forming a 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 sides of the high-frequency signal contact pair CP1. It is made up of. Further, the two normal signal contacts 21B constituting the normal signal contact pair CP2 and the 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 the third contact component is It is configured. Therefore, at the time of insert molding the bottom housing 23B, the plurality of contacts 21 are formed into three contact parts in which four contacts 21 are connected to each other, that is, a first contact part, a second contact part, and a third contact part. Consists of contact parts.

In the tie bar cutting, after the bottom housing 23B is insert-molded, the connecting portions of the four mutually connected contacts 21 of the first contact part, the second contact part, and the third contact part are punched out, and the second contact part is punched out. This is performed to separate the contacts 21 of group 21L from each other. Each of the plurality of contacts 21 of the second contact group 21L is separated from each other by tie bar cutting for the four contacts 21 constituting each of the first contact component, the second contact component, and the third contact component, Tie bar cut marks 215L are formed on each of the plurality of contacts 21.

Note that the tie bar cut is similarly performed on 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 formed by insert molding the top housing 23T to hold the plurality of contacts 21 of the first contact group 21U. In this case, it is composed of a first contact part, a second contact part, and a third contact part. After the top housing 23T is insert-molded, the four contacts 21, which are the first contact part, the second contact part, and the third contact part, are connected to each other through the opening formed in the top housing 23T. The 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 the elastomer material in a state where the lower surface of the top housing 23T and the upper surface of the bottom housing 23B of the housing 23 are in close contact with each other, and the waterproof sealing portion 24 (see FIG. 7)). The waterproof sealing portion 24 is an elastic member formed in the housing 23 so as to surround a portion of each of the plurality of contacts 21 in close contact with each other.

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

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

The flow opening 2215 is formed at a position facing each of the contacts 21 of the first contact group 21U and the contacts 21 of the second contact group 21L. In order to improve the adhesion of the first contact group 21U and the second contact group 21L of the waterproof sealing part 24 to some of the contacts 21, an elastomer is applied through the filling openings 233 of the top housing 23T and bottom housing 23B. When the material is filled into 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 plurality of contacts 21 of the second contact group 21L overlap with the first ground plate piece 221 when viewed from above in the portion of the first ground plate piece 221 facing the flow opening 2215, When insert molding the bottom housing 23B, the entire circumference of each of the plurality of contacts 21 of the second contact group 21L is molded in the portion facing the flow opening 2215 of the first ground plate piece 221. I can't hold it down. As a result, when insert molding the bottom housing 23B, the bottom housing 23B is formed around each of the plurality of contacts 21 of the second contact group 21L in the portion of the first ground plate piece 221 that faces the flow opening 2215. Since the insulating resin material flows in, the entire circumference of each of the plurality of contacts 21 of the second contact group 21L cannot be exposed. In this case, when forming the waterproof sealing part 24, it is not possible to form a space for closely 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 electrical connector 1 of the present invention, the contacts 21 of the second contact group 21L are connected to the flow opening 2215 in the portion of the first ground plate piece 221 that faces the flow opening 2215. must be fully 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 It is smaller than 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. In this way, in the portion of the first ground plate piece 221 facing the flow opening 2215, the contacts 21 of the second contact group 21L are completely exposed to the flow opening 2215. When forming the waterproof sealing part 24, the elastomer material is sufficiently flowed around the plurality of contacts 21 of the second contact group 21L to form the first contact group 21U and the second contact group of the waterproof sealing part 24. The adhesion of the contact group 21L to some of the contacts 21 can be improved.

Further, as shown in FIG. 21, the main body portion 2211 of the first ground plate piece 221 is connected to the contact portion 211U and the horizontal extension portion 212U of the contacts 21 of the first contact group 21U, and the second contact group 21L. It is located between the contact portion 211L and the horizontal extension portion 212L of the contact 21. With this arrangement, the influence of the current flowing through the contact portions 211U, 211L and the horizontal extension portions 212U, 212L of the contacts 21 of the first contact group 21U and the second contact group 21L is It is absorbed into the main body part 2211. Therefore, crosstalk between the contacts 21 arranged above and below can be suppressed.

Returning to FIG. 12, the second ground plate piece 222 is a member made of a metal material and located on the base end side (-Z direction side) of the first ground plate piece 221 on the ground plane. The second ground plate piece 222 includes a main body 2221 on a flat plate, a pair of protrusions 2222 extending upward (+Y direction) from both end sides of the main body 2221 in the width direction (X direction), and a main body 2221 on a flat plate. The shield member 4 has a pair of electrical contact portions 2223 located at both end portions in the width direction (X direction) and in contact with the inner 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). 2223 does not come into contact with the first ground plate piece 221.

The main body portion 2221 is a plate-like member located on the base end side of the main body portion 2211 of the first ground plate piece 221 on the ground plane. The main body part 2221 of the second ground plate piece 222 is provided so as not to contact the main body part 2211 of the first ground plate piece 221, and the main body part 2211 of the first ground plate piece 221 A slight gap exists between the main body portion 2221 of the second ground plate piece 222 and the main body portion 2221 of the second ground plate piece 222. As described above, the pair of protrusions 2222 and the electrical contact portions 2223 of the second ground plate piece 222 do not contact the first ground plate piece 221, so the second ground plate piece 222 , are spaced apart from the first ground plate piece 221 and are not directly electrically connected to the first ground plate piece 221.

The pair of protrusions 2222 extend upward (+Y direction) from both ends of the main body 2221 in the width direction (X direction). The second ground plate piece 222 is attached to the bottom surface of the top housing 23T by inserting each of the pair of protrusions 2222 into the press-fit grooves 234 (see FIG. 13) formed on the bottom surface of the top housing 23T. be able to. The attachment of the second ground plate piece 222 onto the lower surface of the top housing 23T can be carried out at any timing after the top housing 23T is formed by insert molding and before it is integrated with the bottom housing 23B. be done.

The pair of electrical contact portions 2223 extend 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 portion 2223 fits the inner surface of the shield member 4. (See Figure 22). By bringing the pair of electrical contact portions 2223 into contact with the shield member 4, the second ground plate piece 222 is grounded.

As shown in FIG. 21, the main body portion 2221 of the second ground plate piece 222 has horizontal extension portions 212U of the contacts 21 of the first contact group 21U and horizontal extension portions of the contacts 21 of the second contact group 21L. It is located between the extending portion 212L, the downward extending portion 213L, and the terminal portion 214L. With this arrangement, current flows through the horizontally extending portion 212U of the contact 21 of the first contact group 21U, or the horizontally extending portion 212L, the downwardly extending portion 213L, and the terminal portion 214L of the contact 21 of the second contact group 21L. The influence of is absorbed by the main body portion 2221 of the second ground plate piece 222.

The ground plate 22 of the electrical 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 electrical connector 1 of the present invention has an area where a metal member such as a ground plate is not located in the prior art, more specifically, the horizontally extending portion 212U of the contacts 21 of the first contact group 21U. , the second ground plate piece 222 of the ground plate 22 is positioned between the horizontally extending portion 212L, the downwardly extending portion 213L, and the terminal portion 214L of the contacts 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 bottom surface of the top housing 23T in a state where the first contact group 21U and the second ground plate piece 222 are held on the top housing 23T.

As shown in FIG. 13, the top housing 23T includes a base portion 231 located on the proximal end side (-Z direction side) and a tongue-shaped portion 232 extending from the base portion 231 toward the distal end side (+Z direction side). and a filling opening 233 formed at the proximal end portion of the tongue-shaped portion 232, and a pair of press-fit grooves 234 formed at both ends of the lower surface of the base portion 231 in the width direction (X direction). There is. The top housing 23T is formed by insert molding so as to hold the plurality of contacts 21 of the first contact group 21U. As shown in FIG. 14, a second press-fit groove 234 is formed on the lower surface of the top housing 23T, which is insert-molded to hold the plurality of contacts 21 of the first contact group 21U. By press-fitting the pair of protrusions 2222 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 portion 232 includes a plurality of positioning holes 2321 through which pins are inserted for positioning the plurality of contacts 21 of the first contact group 21U when insert molding the top housing 23T, and a plurality of positioning holes 2321 for inserting pins for positioning the plurality of contacts 21 of the first contact group 21U, and During insert molding, the connecting portions of the plurality of contacts 21 of the first contact group 21U that are connected to each other via the connecting portions are punched out, and tie bar cutting is performed to separate the plurality of contacts 21 of the first contact group 21U from each other. A plurality of tie bar cut holes 2322 are formed.

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

As shown in FIG. 15, like the top housing 23T, the bottom housing 23B has a base 231 located on the proximal end side (-Z direction side) and a base part 231 located on the proximal end side (-Z direction side) and a base part 231 located on the distal end side (+Z direction side). It has a tongue-shaped portion 232 that extends from the top and a filling opening 233 formed at a proximal 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 the 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, the second contact group 21L is inserted 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. a plurality of positioning holes 2321 through which pins are inserted for positioning the plurality of contacts 21; and a plurality of positioning holes 2321 for inserting pins for positioning the plurality of contacts 21 in the second contact group 21L, which are connected to each other via connecting portions during insert molding of the bottom housing 23B. A plurality of tie bar cut holes 2322 are formed for punching out the connecting portions of the contacts 21 and performing tie bar cutting for separating the plurality of contacts 21 of the second contact group 21L from each other.

As shown in FIG. 7, the housing 23 is formed by bringing the bottom side of the top housing 23T, on which the second ground plate piece 222 is attached, into close contact with the top side of the bottom housing 23B. . 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, the filling opening 233 of the top housing 23T and bottom housing 23B and the flow opening 2215 of the first gland plate piece 221 are flat. overlap in vision.

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 openings 233 of the top housing 23T and the bottom housing 23B. The elastomeric material filled in the housing 23 flows within the housing 23 via the flow openings 2215 in the first gland plate piece 221 . A watertight seal 24 is then formed within the housing 23 by curing of the elastomeric material. The inside of the housing 23 is liquid-tightly sealed by the waterproof sealing part 24, and water can be prevented from entering from the distal end side to the proximal end side through the waterproof sealing part 24.

After the waterproof sealing portion 24 is formed, the top housing 23T and the bottom housing 23B are overmolded to form an outer mold 25 in order to integrate the top housing 23T and the bottom housing 23B. The outer mold 25 integrates the top housing 23T and the bottom housing 23B. Further, as shown in FIGS. 6 and 23, a ring-shaped inner waterproof seal member 26 made of an elastic material is attached to the outer peripheral surface of the outer mold 25, and is connected to the inner structure 2. A gap with the inner surface of the shell 3 is liquid-tightly sealed by an inner waterproof seal member 26. The inner waterproof seal member 26 blocks the water intrusion path between the internal structure 2 and the inner surface of the shell 3 from the distal end side to the proximal end side, and prevents water from entering between the internal 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, the second ground plate piece 222, and the waterproof sealing part 24 therein, 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. FIG. 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 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 viewed from below. FIG. 20 is a partially enlarged view of the cross-sectional view taken along line BB in FIG. 18. FIG. 21 is a sectional view taken along the line CC in FIG. 18. In addition, in FIGS. 17 to 21, for the sake of explanation, parts of 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 are shown. Components are omitted. Further, in FIG. 20, in order to simplify the drawing, only the cross section of the contact 21 and the first ground plate piece 221 are shown, and other parts of the contact 21 that appear in the BB cross-sectional view are omitted.

As shown in FIGS. 17 and 21, in a state where the internal structure 2 (see FIG. 6) is formed, the first contact group 21U is connected to the first ground plate piece 221 and the second ground plate. The second contact group 21L 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 are insulated. maintained in the state.

As shown in FIGS. 17 and 21, in the state in which the internal structure 2 (see FIG. 6) is formed, the main body portion 2211 of the first ground plate piece 221 contacts the contacts of the first contact group 21U. It is located between the contact portion 211U and the horizontally extending portion 212U of the contact 21 of the second contact group 21L and the contact portion 211L and the horizontally extending 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 extending portion 212U of the contacts 21 of the first contact group 21U, a horizontally extending portion 212L of the contacts 21 of the second contact group 21L, a downwardly extending portion 213L, and the terminal portion 214L. Therefore, not only crosstalk occurs between the contact portion 211U and the horizontal extension portion 212U of the contact 21 of the first contact group 21U and the contact portion 211L and the horizontal extension portion 212L of the contact 21 of the second contact group 21L, but also the Crosstalk between the horizontally extending portions 212U of the contacts 21 of the first contact group 21U and the horizontally extending portions 212L, downwardly extending portions 213L, and terminal portions 214L of the contacts 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 same as that of 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 part 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 It is formed across both 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 There is a region where there is no metal member to absorb the effects of the current flowing through it. 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 forming the high-frequency signal contact pair CP1 through which high-frequency differential signals flow becomes large.

However, in the electrical 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. 2211 and the main body portion 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, 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 portions 216 of the high frequency signal contacts 21A of the second contact group 21L are located at positions facing the flow openings 2215 of the main body portion 2221 of the first ground plate piece 221. is formed. In other words, 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 portions 216 of the two adjacent high frequency signal contacts 21A of the first contact group 21U are 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. On the other hand, the narrow pitch portions 216 of the two adjacent high frequency signal contacts 21A of the second contact group 21L are formed to face the flow openings 2215 of the first ground plate piece 221. has been done. Therefore, in a plan view as shown in FIG. 18 or FIG. The narrow pitch portions 216 of the two adjacent high frequency signal contacts 21A of the first contact group 21U do not overlap the narrow pitch portions 216 of the two adjacent high frequency signal contacts 21A of the second contact group 21L.

As previously mentioned, a flow opening 2215 is formed in the first gland plate piece 221 to fill the housing 23 with elastomeric material and form the watertight seal 24 . 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, it is difficult to suppress crosstalk in this region. I can't. In order to cope with such problems, the electrical 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 sectional view taken along the line BB in FIG. 18, in which the vicinity of the flow opening 2215 of the first ground plate piece 221 is enlarged. 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 The two high frequency signal contacts 21A forming the high frequency signal contact pair CP1 of the second contact group 21L are opposed to each other.

In addition, 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 space between the two high frequency signal contacts 21A of the second contact group 21L. The widthwise center of the space coincides with the widthwise center of the flow opening 2215. 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 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. Note that the surfaces of the two high-frequency signal contacts 21A that face 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 referred to as the outer surfaces of the two high-frequency signal contacts 21A. That's what it means.

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 are It is not completely exposed to the flow opening 2215, and a part of the outside faces the main body part 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 turns out. Therefore, in the region facing the flow opening 2215, crosstalk caused by 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 narrow pitch portions 216 at positions facing the flow openings 2215. A narrow pitch region 217 of the high frequency signal contacts 21A of the second contact group 21L is formed at a position facing the opening 2215 for the high frequency signal. Therefore, in the area facing the flow opening 2215, the distance W2 between the outer surfaces of the two high frequency signal contacts 21A of the second contact group 21L is the same as the distance W2 between the outer surfaces of the two high frequency signal contacts 21A of the first contact group 21U. It is smaller than the separation distance W1 between the side surfaces.

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, 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 contacts 21A of the second contact group 21L can be suppressed.

In addition, with reference to FIG. 20, the separation distance W1 between the outer surfaces of the two high frequency signal contacts 21A of one high frequency signal contact pair CP1 of the first contact group 21U and the high frequency signal of one high frequency signal contact pair CP1 of the second contact group 21L Although 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 explained, the other high-frequency signal contact of the first contact group 21U A separation distance W1 between the outer surfaces of the two high frequency signal contacts 21A of the signal contact pair CP1, and a 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 holds true for the relationship between the width W3 of the flow opening 2215 and the width W3 of the flow opening 2215 facing them.

As described above, in the electrical connector 1 of the present invention, in the region facing the flow opening 2215, 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 The 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.

Furthermore, in the area 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 flow opening 2215. Therefore, as described above, when filling the housing 23 with the elastomer material through the filling openings 233 of the top housing 23T and the bottom housing 23B and forming the waterproof sealing part 24 in the housing 23, the waterproof sealing part 24 is formed in the housing 23. The adhesion of the first contact group 21U and the second contact group 21L of the stopper 24 to some of the contacts 21 can be improved, and the waterproof performance within the housing 23 can be improved.

As mentioned above, the electrical connector 1 of the present invention has an internal structure 2 that includes various features for suppressing crosstalk between the plurality of contacts 21. In particular, in the electrical 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 side toward the other. It has a narrow pitch portion 216, and a narrow pitch region 217 is formed by the narrow pitch portions 216 of the two high frequency signal contacts 21A. In this way, by forming the narrow pitch portion 216 in each of the two high frequency signal contacts 21A, crosstalk caused 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 cylindrical member made of a metal material, and covers the internal structure 2 from the outside. The shell 3 stores the internal structure 2 therein in a state that covers the internal structure 2 except for the distal end side and the proximal end side in the insertion/extraction direction (Z direction) of the mating connector. The shell 3 has a cylindrical main body part 31 and an annular locking part 32 formed to protrude outward from the tip of the outer periphery of the main body part 31 .

The locking part 32 is an annular part formed to protrude outward from the tip of the outer periphery of the main body 31, and the outer waterproof seal member 5 provided to cover the tip of the outer periphery of the main body 31 is inserted 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 of a first contact group 21U and a second contact group 21L of the shell 3 and the internal structure 2, and a ground plate 22 (a first ground plate piece 221 and a second ground plate piece). 222) from the outside, it has the function of electromagnetic shielding (EMC) for these components.

The shield member 4 is made of a metal material and has a cylindrical shape corresponding to the shell 3. When the shield member 4 is attached to the shell 3, a space is formed between the tip of the shield member 4 and the locking portion 32 of the shell 3, and the outer waterproof seal member 5 is attached within the space. As shown in FIG. 22, the inner surface of the shield member 4 is in contact with a pair of electrical contacts 2223 of the second ground plate piece 222. With such a configuration, the second ground plate piece 222 is grounded.

Returning to FIG. 6, the outer waterproof seal member 5 is attached to the distal end side on the outer periphery of the main body portion 31 of the shell 3, and is held between the distal end portion of the shield member 4 and the locking portion 32 of the shell 3. . The outer waterproof sealing member 5 is a ring-shaped member made of an elastic material, and when the electrical connector 1 is attached to an electronic device, the outer waterproof sealing member 5 is a ring-shaped member made of an elastic material. Used to prevent water from entering.

FIG. 23 shows a cross-sectional view of the electrical connector 1. As shown in FIG. As shown in FIG. 23, the water intrusion path from the distal end to the proximal end inside the housing 23 is blocked by the waterproof sealing part 24, and a waterproof function is provided within the housing 23. There is. On the other hand, the path of water intrusion from the distal end to the proximal end between the housing 23 and the inner surface of the shell 3 is blocked by the inner waterproof seal member 26, and a waterproof function within the shell 3 is provided. There is. Furthermore, an outer waterproof sealing member 5 is attached to the outer periphery of the main body portion 31 of the shell 3 on the tip side, thereby preventing water from entering into the electronic device to which the electrical connector 1 is attached.

<Second embodiment>
Next, an electrical connector according to a 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 an electrical connector according to a second embodiment of the invention. FIG. 25 is a perspective view of a ground plate of an electrical connector according to a second embodiment of the present invention. FIG. 26 is a YZ diagram 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 electrical connector according to the second embodiment of the present invention. It is a sectional view in a plane. For the sake of explanation, 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 in FIG.

Hereinafter, the electrical connector 1 of the second embodiment will be described with a focus on the differences from the electrical connector 1 of the first embodiment, and the explanation of similar matters will be omitted. The electrical connector 1 of this embodiment has the same configuration as the electrical 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 electrical connector 1 of this embodiment. The second ground plate piece 222 of this embodiment includes a main body 2221 on a flat plate, and a pair of protrusions 2222 extending upward (+Y direction) from both end sides of the main body 2221 in the width direction (X direction). , a pair of electrical contact parts 2223 located at both ends of the main body part 2221 in the width direction (X direction) and in contact with the first ground plate piece 221; direction).

The main body portion 2221 and the pair of protrusions 2222 are the same as the second ground plate piece 222 of the first embodiment, so a description thereof will be omitted. On the other hand, the pair of electrical contact portions 2223 of the second ground plate piece 222 of this embodiment extends from both ends of the main body portion 2221 in the width direction toward the tip 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 rather than the shield member 4. As shown in FIG. Therefore, in this embodiment, the second ground plate piece 222 is electrically connected to the first ground plate piece 221.

Further, as shown in FIG. 26, in the state in which the internal structure 2 is formed, the extending portion 2224 connects the downwardly extending portion 213U of the contacts 21 of the first contact group 21U and the lower extending portion 213U of the contacts 21 of the second contact group 21L. It extends downward (in the −Y direction) from the base end of the main body portion 2221 so as to be located between the downwardly extending portion 213L and the terminal portion 214L of the contact 21. That is, in the state in which the internal structure 2 is formed, the extending portions 2224 include the downwardly extending portions 213U of the contacts 21 of the first contact group 21U, the downwardly extending portions 213L of the contacts 21 of the second contact group 21L, and the terminals. 214L.

In the first embodiment, the current flowing through the contacts 21 between the downwardly extending portions 213U of the contacts 21 of the first contact group 21U and the downwardly extending portions 213L and terminal portions 214L of the contacts 21 of the second contact group 21L. There were no metal components to absorb the impact. On the other hand, in this embodiment, the extending portion 2224 exists between the downwardly extending portion 213U of the contacts 21 of the first contact group 21U and the downwardly extending portion 213L of the contacts 21 of the second contact group 21L and the terminal portion 214L. Therefore, crosstalk between the upper and lower contacts 21 can be suppressed more effectively.

Although the electrical connector of the present invention has been described above based on the illustrated embodiments, electronic devices equipped with the electrical connector of the present invention as described above are also within the scope of the present invention. The electronic device of the present invention includes a housing, a circuit board (not shown) provided within the housing, and the above-described electrical connector mounted on the circuit board.

Although the electrical connector and electronic device of the present invention have been described based on the illustrated embodiments, the present invention is not limited thereto. Each component of the present invention can be replaced with any component that can perform a similar function, or any component can be added to each component of the present invention.

For example, in each embodiment of the electrical connector 1, the second ground plate piece 222 is formed by forming the pair of protrusions 2222 on the lower surface of the first ground plate piece 221 after forming the top housing 23T by insert molding. Although it is attached to the top housing 23T by being press-fitted into the pair of press-fitting grooves 234, the present invention is not limited thereto. For example, the top housing 23T may be formed by insert molding so as to hold the first contact group 21U and the second ground plate piece 222.

Those skilled in the field and art to which this invention pertains will be able to make changes in the configuration of the electrical connector of the invention described without departing significantly from the principles, spirit, and scope of the invention; Electrical connectors with modified configurations are also within the scope of the invention. For example, aspects in which the electrical connectors of the first embodiment and the second embodiment are arbitrarily combined are also within the scope of the present invention.

Further, the number and types of components of the electrical connector shown in FIGS. 4 to 26 are merely examples for explanation, and the present invention is not necessarily limited thereto. Embodiments in which any components are added or combined, or any components are deleted, are within the scope of the present invention without departing from the principles and intent of the present invention.

1... Electrical 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 portion 212U, 212L ...Horizontal extending part 2121...Outward extending part 213U, 213L...Downward extending part 214U, 214L...Terminal part 215U, 215L...Tie bar cut trace 216...Narrow pitch part 2161...Approaching part 2162...Straight line part 217...Narrow pitch area 22...Ground Plate 221...First ground plate piece 2211...Body part 2212...Terminal part 2213...Positioning hole 2214...Tie bar cut hole 2215...Flow opening 222...Second grand plate piece 2221...Body part 2222...Protrusion part 2223...Electricity Contact portion 2224... Extension portion 23... Housing 23B... Bottom housing 23T... Top housing 231... Base 232... Tongue-shaped portion 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 part 32... Locking part 4... Shield member 5... Outer waterproof seal member 800... Electrical connector 810... Shell 820... Internal structure 830... Contact 830U... No. 1 contact group 830L...Second 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 (7)

An electrical connector that can be mated with a mating connector inserted from the tip side,
a first contact group composed of a plurality of contacts arranged on a first contact plane and extending linearly along the insertion/extraction direction of the mating connector;
A plurality of contacts are located below the first contact plane, are arranged on a second contact plane facing the first contact plane, and extend linearly along the insertion/extraction direction of the mating connector. a second contact group consisting of contacts;
a ground plate disposed between the first contact plane and the second contact plane on a ground plane facing the first contact plane and the second contact plane,
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 each of the first contact group and the second contact group has a narrow pitch portion that approaches from one side toward the other,
The separation distance between the narrow pitch parts of the two contacts constituting the signal contact pair of each of the first contact group and the second contact group is the separation distance between other parts of the two contacts. smaller than
In a plan view seen from above and below perpendicular to the insertion/extraction direction of the mating connector, the narrow pitch portions of each of the two contacts of the signal contact pair of the first contact group and the second contact An electrical connector characterized in that the narrow pitch portions of each of the two contacts of the signal contact pair of the group do not overlap . 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,
2. The electrical connector according to claim 1 , 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. 3. The electrical connector according to claim 2 , wherein 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. Each of the signal contact pairs of the first contact group and the second contact group includes a normal signal contact pair consisting of two normal signal contacts for transmitting a differential signal of a normal frequency; and a high frequency signal contact pair consisting of two high frequency signal contacts for transmitting a high frequency differential signal higher than the normal frequency,
4. 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. electrical connector. the narrow pitch portion of each of the two contacts of the signal contact pair of the first contact group extends only on the first contact plane;
5. The electrical contact according to claim 1, wherein the narrow pitch portion of each of the two contacts of the signal contact pair of the second contact group extends only on the second contact plane. connector. Each of the contacts of the first contact group and the second contact group includes a contact portion located on the distal end side and in contact with the mating connector, and a contact portion extending horizontally from the contact portion toward the proximal end side. It has a horizontally extending portion, a downwardly extending portion extending downward from the horizontally extending portion, and a terminal portion extending from the downwardly extending portion toward the base end side,
the horizontally extending portions of the contacts of the first contact group extend only on the first contact plane;
The narrow pitch portion of each of the two contacts of the signal contact pair of the first contact group is formed in the horizontally extending portion of the contact of the signal contact pair of the first contact group,
the horizontally extending portions of the contacts of the second contact group extend only on the second contact plane;
The narrow pitch portion of each of the two contacts of the signal contact pair of the second contact group is formed in the horizontally extending portion of the contact of the signal contact pair of the second contact group. The electrical connector according to any one of Items 1 to 5. A casing and
a circuit board provided within the housing;
An electronic device comprising: the electrical connector according to any one of claims 1 to 6 , mounted on the circuit board.

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