JP7183544B2 - connector device - Google Patents

Description

In the invention described in the claims of the present application, a mating connector device to which a plurality of signal transmission members such as coaxial cables are connected while being attached to a circuit board is fitted and connected to the signal transmission member. relates to a connector device used for electrical connection with a circuit board.

When electrically connecting high-frequency signal transmission members such as multiple relatively thin coaxial cables to a circuit board on which various electrical components are mounted, a In many cases, a board-side connector device to which a physical connection is made, and a signal transmission member-side connector device to which a high-frequency signal transmission member is connected so as to be in a mating connection state with the board-side connector device are used. When viewed from the board-side connector device, the signal transmission member-side connector device is a mating connector device for the board-side connector device.

In such a case, the board-side connector device includes, for example, an insulating housing provided with a fitting opening into which the mating portion of the mating connector device is inserted and arranged on the component mounting surface of the circuit board. A plurality of signal contacts and a plurality of ground contacts are provided in an array. Each of the plurality of signal contacts protrudes outside the insulating housing and is inserted into a connection end connected, for example, by soldering, to a signal terminal provided on the component mounting surface of the circuit board, and into the fitting opening. and a contact end to be connected to the end of the signal contact in the mating portion of the mating connector device, and each of the plurality of ground contacts protrudes outside the insulating housing and is mounted on the circuit board. A connection end connected by soldering, for example, to a ground terminal provided on a component mounting surface, and a contact connected to the end of the ground contact in the fitting portion of the mating connector device inserted into the fitting opening. end. Furthermore, in order to reduce unnecessary radio wave radiation to the outside and unnecessary radio wave interference from the outside, the board-side connector device is made of, for example, a metal plate material and mounted on the outer surface of the insulating housing, and is grounded on the circuit board. It is provided with a conductive shell that is connected to an electrical potential.

A mating connector device in which ends of a plurality of signal contacts and ends of a plurality of ground contacts are arranged in a fitting portion inserted into a fitting opening in an insulating housing of a board-side connector device, for example, A plurality of coaxial cables as high-frequency signal transmission members are mounted in such a state that each of them is connected to a signal contact and a ground contact, in order to reduce unnecessary radio wave radiation to the outside and unnecessary radio wave interference from the outside. , with a conductive shell made of sheet metal. Then, when the fitting portion of the insulating housing of the mating connector device is inserted into the mating opening portion of the insulating housing of the board-side connector device, the end portions of the plurality of signal contacts arranged in the mating portion of the mating connector device and the plurality of The ends of the ground contacts of are connected to the contact ends of the plurality of signal contacts and the contact ends of the plurality of ground contacts of the board-side connector device, respectively, and are connected to the conductive shell of the mating connector device The conductive shell of the board-side connector device is brought into mutual contact connection.

In the board-side connector device as described above, the plurality of signal contacts and the plurality of ground contacts are aligned along the component mounting surface of the circuit board when the insulating housing is placed on the component mounting surface of the circuit board ( Hereinafter, such a direction will be referred to as a circuit board surface direction) and supported by an insulating housing. A plurality of contact end portions of the signal contacts and a plurality of contact end portions of the ground contacts are arranged in the surface direction of the circuit board. Along with this, the ends of the plurality of signal contacts and the ends of the plurality of ground contacts arranged in the mating portion of the insulating housing of the mating connector device also move from the mating portion of the mating connector device to the mating opening portion of the board-side connector device. are arranged in the direction of the surface of the circuit board.

Under such circumstances, in the board-side connector device, in order to reduce the area occupied on the component mounting surface of the circuit board on which the insulating housing is arranged, a plurality of contact end portions of the plurality of signal contacts are provided. and the plurality of contact ends of the plurality of ground contacts are arranged as densely as possible, and crosstalk or the like is suppressed between the contact ends of mutually adjacent signal contacts to maintain good signal transmission characteristics. It is desirable to do Therefore, conventionally, a board-side connector device has an insulating housing arranged on the component mounting surface of a circuit board, and a plurality of signal contacts and a plurality of ground contacts are arranged in the insulating housing. There is proposed a device in which a plurality of contact end portions of a plurality of signal contacts and a plurality of contact end portions of a plurality of ground contacts are devised (see, for example, Patent Document 1). .).

The conventionally proposed board-side connector device (connector (100)) described in Patent Document 1 includes an insulating housing (holding member (150)) arranged on the component mounting surface of the circuit board, and holding by the insulating housing. It has a plurality of signal contacts (signal contacts (110, 120)) and a plurality of ground contacts (130) and a conductive shell (shell (160)) covering most of the insulating housing. Each of the plurality of signal contacts includes a connection end (fixed portion (114, 124)) that protrudes outside the insulating housing and is connected to a signal terminal provided on the component mounting surface of the circuit board, and a mating connector device (mating side). and a contact end portion (contact portions (112, 122)) to be contact-connected to the end portion of the signal contact in the connector), and each of the plurality of ground contacts protrudes outside the insulating housing to The connection end (fixed part (134)) connected to the ground terminal provided on the component mounting surface of the other connector device (contact part (132) ).

In such a conventionally proposed board-side connector device (hereinafter referred to as the connector device described in the literature), the contact ends (contact portions (112, 122)) of a plurality of signal contacts and the contact ends of a plurality of ground contacts A first row (first row (L ₁ ) (upper row )) and a second row (second row (L ₂ ) (lower row)). Each of the first row and the second row is parallel to the component mounting surface of the circuit board, and the second row is positioned between the component mounting surface of the circuit board and the first row. there is In each of the first row and the second row, the arrangement in which the contact end portions of two adjacent signal contacts are sandwiched between the contact end portions of a pair of ground contacts is repeated. The row and the second row are arranged such that the contact ends of two adjacent signal contacts are sandwiched between the contact ends of a pair of ground contacts by 1/2 pitch (half interval) of the arrangement. It is

In Patent Document 1, which discloses the connector device described in such a document, the contact end portions of a plurality of signal contacts (contact portions (112, 122)) and the contact end portions of a plurality of ground contacts (contact portion (132)) are described. By arranging in the manner as described above, the plurality of contact ends of the signal contacts and the contact ends of the ground contacts are densely arranged, and the signals are arranged close to each other It is described that the crosstalk or the like between the contact ends of the contacts can be suppressed and good signal transmission characteristics can be maintained.

JP 2014-160619 A

In the connector device described in the above document, each of the upper side contacts is formed by repeating the arrangement in which the contact end portions of two adjacent signal contacts are sandwiched between the contact end portions of a pair of ground contacts. A row (first row) and a lower row (second row) are parallel to the component mounting surface of the circuit board, and the lower row is aligned with the component mounting surface of the circuit board. each of the plurality of ground contacts having contact ends contained in the upper row and the lower row, each of which has a common connection end, is a component of the circuit board It is connected to a ground terminal provided on the mounting surface. Accordingly, the length from the contact end portion to the connection end portion (hereinafter referred to as the first length) of the ground contact having the contact end portion included in the upper row (hereinafter referred to as the upper ground contact) is , the length from the contact end to the connection end (hereinafter referred to as the second length) of the ground contact having the contact end included in the lower row (hereinafter referred to as the lower ground contact) It is large.

Then, the counterpart connector device is fitted to the connector device described in the document, and the contact ends of the upper ground contact and the lower ground contact are connected to the ends of the ground contacts of the counterpart connector device. is placed in a state where the ground potential is applied to both the contact end and the connection end of the upper ground contact, and the ground potential is applied to both the contact end and the connection end of the lower ground contact. left in a state of Under such conditions, the upper ground contact has a resonance frequency at a specific frequency corresponding to the first length of 1/2 wavelength, and the lower ground contact also has a resonance frequency corresponding to the second length. A specific frequency whose length corresponds to 1/2 wavelength shall be taken as the resonance frequency. Then, each of the upper ground contact and the lower ground contact acts as a resonant antenna for a signal having the resonance frequency and radiates the signal having the resonance frequency.

Such a state in which the upper ground contact or the lower ground contact acts as a resonant antenna and radiates a signal having a resonant frequency causes unwanted crosstalk in the board-side connector device, resulting in signal transmission failure. It causes deterioration of characteristics. Therefore, the effective transmission frequency band of the connector device described in the literature is a frequency band up to a frequency that does not reach the lower one of the resonance frequencies of the upper ground contact and the lower ground contact. .

Under such circumstances, in the connector device described in the literature, the first length of the upper ground contact is longer than the second length of the lower ground contact, so that the resonance frequency of the upper ground contact is lower than the lower ground contact. lower than the resonant frequency of the ground contact. As a result, the connector device described in the literature has its effective transmission frequency band limited to a frequency band up to and including the resonant frequency of the upper ground contact, and beyond which the resonant frequency of the lower ground contact is not reached. It has the disadvantage that it cannot be a frequency band that is extended to a range.

In view of this point, the invention claimed in the claims of the present application comprises a plurality of signal contacts and a plurality of ground contacts supported by an insulating housing arranged on a component mounting surface of a circuit board, and a plurality of signal contacts. Each of the contacts has a connection end portion connected to a signal terminal portion provided on the component mounting surface of the circuit board and a contact end portion connected to an end portion of the signal contact in the mating connector device, and a plurality of grounds. Each of the contacts has a connection end portion connected to a ground terminal portion provided on the component mounting surface of the circuit board and a contact end portion contact-connected to an end portion of the ground contact in the mating connector device. The contact ends of the signal contacts and the plurality of ground contacts form a first contact end row and a second contact end row, which are parallel rows arranged in the surface direction of the circuit board. A connector device capable of expanding an effective transmission frequency band is provided.

A connector device according to the invention recited in any one of claims 1 to 8 in the scope of claims of the present application (hereinafter referred to as the invention of the present application) includes an insulating housing arranged on a component mounting surface of a circuit board. , each of which has a contact end connected to the end of the signal contact of the mating connector device and a connection end connected to the signal terminal provided on the component mounting surface of the circuit board. a plurality of first contacts, each having a contact end portion contact-connected to the end portion of the ground contact of the mating connector device and a connection end portion connected to a ground terminal portion provided on the component mounting surface of the circuit board; A first row of contacts arranged in a direction along the component mounting surface of the circuit board and supported by an insulating housing, each of which is contact-connected to the end of the signal contact of the mating connector device. and a plurality of second signal contacts each having a contact end portion connected to the signal terminal portion provided on the component mounting surface of the circuit board, and each of which is contact-connected to the end portion of the ground contact of the mating connector device. and a plurality of second ground contacts having connection ends connected to ground terminal portions provided on the component mounting surface of the circuit board, along the component mounting surface of the circuit board. A second row of contacts arranged in a direction and supported by an insulating housing, and a conductive shell mounted on the outer surface of the insulating housing and supplied with a ground potential. Under such circumstances, the first contact end portion row formed by the contact end portions of the plurality of first signal contacts and the plurality of first ground contacts included in the first contact row and the second A second contact end row formed by contact ends of the plurality of second signal contacts and the plurality of second ground contacts included in the contact row, and the second contact end row is a component of the circuit board. are arranged in parallel rows between the mounting surface and the first contact end row, and extend from the contact end portion to the connection end portion of each of the plurality of first ground contacts included in the first contact row; The length of each of the plurality of second ground contacts included in the second contact row is selected to be larger than the length from the contact end portion to the connection end portion of each of the plurality of second ground contacts within a range not exceeding twice the length. An intermediate portion between the contact end and the connection end of each ground contact is connected to the conductive shell.

In particular, in the connector device according to claim 2 of the present invention, each of the plurality of first ground contacts included in the first contact row has a contact end portion to a connection end portion. The length is selected to be larger than the length from the contact end to the connection end of each of the plurality of second ground contacts included in the second contact row, within a range not exceeding twice the length. and both the length from the contact end portion to the intermediate portion and the length from the intermediate portion to the connection end portion of each of the plurality of first ground contacts are equal to the contact end portion of each of the plurality of second ground contacts. to the connection end.

Further, in the connector device according to claim 3 of the present invention, each of the plurality of first ground contacts included in the first contact row is arranged from the contact end to the middle. The length to the part and the length from the intermediate part to the connection end are substantially equal.

The connector device according to the present invention configured as described above constitutes a board-side connector device that is used by being attached to a circuit board. In the connector device according to the present invention, the first contact ends formed by the contact ends of the plurality of first signal contacts and the plurality of first ground contacts included in the first contact row A second contact end portion row formed by the contact end portions of the plurality of second signal contacts and the plurality of second ground contacts included in the second contact row and the second contact end portion. The contact ends at each of the plurality of first ground contacts included in the first contact row, the rows being arranged in parallel rows positioned between the component mounting surface of the circuit board and the first contact edge row. to the connection end of each of the plurality of second ground contacts included in the second contact row is selected to be larger than the length from the contact end to the connection end of each of the second contact rows within a range not exceeding twice the length from the contact end to the connection end. An intermediate portion between the contact end portion and the connection end portion of each of the plurality of first ground contacts is connected to the conductive shell.

Thereby, the contact ends of the plurality of first signal contacts and the plurality of second signal contacts are contact-connected to the ends of the signal contacts of the mating connector device, and the connection ends are connected to the circuit board. Each of the plurality of first ground contacts and the plurality of second ground contacts is connected to the signal terminal portion provided on the component mounting surface, and the contact end portion of each of the plurality of first ground contacts and the plurality of second ground contacts is connected to the end portion of the ground contact of the mating connector device. When the contact connection is made and the connection end is connected to the ground terminal portion provided on the component mounting surface of the circuit board, each of the plurality of first ground contacts is connected to the contact end thereof. Each of the end portions and the intermediate portion connected to the conductive shell is provided with a ground potential. Thereby, each of the plurality of first ground contacts has a first resonance frequency corresponding to a length from the contact end to the intermediate portion corresponding to 1/2 wavelength and a length from the intermediate portion to the connection end of 1 and a second resonant frequency corresponding to /2 wavelength.

Each of the length from the contact end to the intermediate portion and the length from the intermediate portion to the connection end of each of the plurality of first ground contacts is the distance from the contact end to the connection end of the second ground contact. length so that both the first resonant frequency and the second resonant frequency are connected from the contact end of the first ground contact if the intermediate portion were not connected to the conductive shell. The length to the edge is higher than the resonance frequency corresponding to 1/2 wavelength. By setting the position of the intermediate portion of the first ground contact, the length from the contact end to the connection end is smaller than that of the first ground contact for both the first resonance frequency and the second resonance frequency. The length from the contact end portion to the connection end portion of the second ground contact selected in (1) can be made equal to or greater than the resonance frequency corresponding to 1/2 wavelength.

The position setting of the intermediate portion of the first ground contact at such time is performed by the plurality of first contact rows included in the first contact row, for example, as in the connector device according to claim 2 of the present invention. The length from the contact end to the connection end of each of the ground contacts is longer than the length from the contact end to the connection end of each of the plurality of second ground contacts included in the second contact row. Each of the plurality of first ground contacts has a length from the contact end to the intermediate portion and a length from the intermediate portion to the connection end, which is selected to be no more than twice as large as Both the length from the contact end portion to the intermediate portion and the length from the intermediate portion to the connection end portion of each of the plurality of first ground contacts are substantially equal to each other. The distance from the contact end to the connection end of each ground contact is equal to or less than the length.

In the above-described connector device according to the present invention, the length from the contact end to the connection end of each of the plurality of first ground contacts included in the first contact row is included in the second contact row. The length from the contact end portion to the connection end portion of each of the plurality of second ground contacts is selected to be larger than the length from the contact end portion to the connection end portion within a range not exceeding twice the length, and the first ground contact of each of the plurality of first ground contacts is selected to be larger than the length from the contact end portion to the connection end portion of each of the plurality of second ground contacts. and the second resonance frequency can be equal to or higher than the resonance frequency of each of the plurality of second ground contacts, so that the effective transmission frequency band limited by the resonance frequency is A frequency that does not reach the resonant frequency of the second ground contact whose length from the contact end to the connecting end is chosen to be smaller than the first ground contact without being restricted by the resonant frequency of the first ground contact. It will be possible to extend the frequency band to a wider range.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of a connector device according to the present invention together with a circuit board to which it is attached and an example of a mating connector device fitted and connected thereto; FIG. 2 is a perspective view showing an example of the connector device according to the present invention shown in FIG. 1 with some members separated therefrom; FIG. 2 is a perspective view showing an example of the connector device according to the present invention shown in FIG. 1 with some members removed therefrom; FIG. 2 is a front view showing an example of the connector device according to the present invention shown in FIG. 1 together with a circuit board to which it is attached; 5 is an enlarged view showing the inside of a dashed-dotted line frame E in FIG. 4; FIG. 2 is a perspective view alone showing an example of the mating connector device shown in FIG. 1; FIG. FIG. 2 is a perspective view showing an example of the mating connector device shown in FIG. 1 with some members removed or separated therefrom; 2 is a perspective view showing a structure incorporated in the example of the mating connector device shown in FIG. 1 together with a plurality of coaxial cables connected thereto; FIG. 2 is a plan view showing a structure incorporated in the example of the mating connector device shown in FIG. 1 together with a plurality of coaxial cables connected thereto; FIG. Figure 10 is a perspective view of a portion of the structure shown in Figure 9 with a plurality of coaxial cables; Figure 10 is a plan view of a portion of the structure shown in Figure 9 with a plurality of coaxial cables; 1 is a perspective view showing a state in which an example of a mating connector device is fitted and connected to an example of a connector device according to the present invention attached to a circuit board; FIG. 1 is a plan view showing a state in which an example of a mating connector device is fitted and connected to an example of a connector device according to the present invention attached to a circuit board; FIG. 1 is a side view showing a state in which an example of a mating connector device is fitted and connected to an example of a connector device according to the present invention attached to a circuit board; FIG. 14 is a cross-sectional view partially showing the XV-XV line cross section in FIG. 13; FIG. 14 is a cross-sectional view partially showing the XVI-XVI line cross section in FIG. 13; FIG.

The modes for carrying out the present invention are illustrated with examples of the present invention described below.

FIG. 1 shows an example of a connector device according to the present invention together with a circuit board to which it is attached and a mating connector device to be fitted and connected, and FIGS. 2 and 3 show the connector device according to the present invention. An example is shown with some parts separated or removed therefrom.

In FIG. 1, a connector device 11, which constitutes an example of a connector device according to the present invention, is a receptacle connector that is attached to a circuit board 12 and electrically connected to an electric circuit component on the circuit board 12 and used as a board-side connector device. , and under the state of being attached to the circuit board 12, the mating connector device 13 forming a plug connector to which a plurality of coaxial cables are connected is fitted and connected. The connector device 11 is provided with an insulating housing 14 arranged on the component mounting surface 12a of the circuit board 12. The insulating housing 14 is made of an insulating material such as synthetic resin and serves as a mating connector. A fitting opening 16 (shown in FIG. 4 to be described later) into which a fitting portion 15 of the device 13 is inserted is provided.

As shown in FIGS. 1 to 3, a conductive shell 17 made of, for example, a metal plate is attached to the outer surface of the insulating housing 14. As shown in FIG. The conductive shell 17 is formed separately from the first shell member 17A that covers the outer surface of the insulating housing 14 and the first shell member 17A and is electrically connected to the first shell member 17A. (In FIG. 2, the second shell member 17B is shown separated from the first shell member 17A.). The first shell member 17A is provided with an engaging protrusion 19 (clearly shown in FIGS. 2 and 3) which is inserted into a through-hole provided in the ground potential portion 18 of the circuit board 12. The second shell member 17B has an engaging protrusion 20 (clearly shown in FIG. 2) which is inserted into a through-hole provided in the ground potential portion 18 of the circuit board 12, and a first A contact projection 21 (clearly shown in FIG. 2) is provided for contacting contact with the shell member 17A.

Each of the engaging projections 19 provided on the first shell member 17A and the engaging projections 20 provided on the second shell member 17B is connected to the ground potential portion 18 of the circuit board 12. The conductive shell 17 is inserted into the hole and the contact protrusion 21 provided on the second shell member 17B is contacted and connected to the first shell member 17A, so that the conductive shell 17 and the second shell member 17B are connected to the first shell member 17A. After being electrically connected to the shell member 17A, it is fixed to the circuit board 12 and is supplied with the ground potential from the ground potential portion 18. As shown in FIG.

As shown in FIG. 2, in the insulating housing 14 whose outer surface is covered with the first shell member 17A that constitutes the conductive shell 17, a plurality of first signal contacts supported by the insulating housing 14 are provided. 25 and the plurality of first ground contacts 26 are along the component mounting surface 12a of the circuit board 12 when the insulating housing 14 is arranged on the component mounting surface 12a of the circuit board 12. Insulating housing 14, as shown in FIG. A second contact row is provided in which a plurality of second signal contacts 27 and a plurality of second ground contacts 28 are arranged in the surface direction of the circuit board. In the first contact row, the arrangement in which two adjacent first signal contacts 25 are sandwiched between a pair of first ground contacts 26 is repeated. The arrangement in which two second signal contacts 27 are sandwiched between a pair of second ground contacts 28 is repeated.

Each of the plurality of first signal contacts 25 included in the first contact row is an end portion 48a of the signal contact 48 of the mating connector device 13 (shown in FIGS. 8 and 9, which will be described later). and a signal terminal portion (not shown) provided on the component mounting surface 12a of the circuit board 12. Each of the plurality of first ground contacts 26 included in the first contact row is connected to an end portion 49a (described later) of the ground contact 49 of the mating connector device 13. (shown in FIGS. 8 and 9) and the contact end portion 32 (shown in FIGS. 4 and 5 described later) provided on the component mounting surface 12a of the circuit board 12. It has a connection end portion 33 connected to a ground terminal portion (not shown).

Similarly, each of the plurality of second signal contacts 27 included in the second contact row is an end portion 48a of the signal contact 48 of the mating connector device 13 (shown in FIGS. 8 and 9 to be described later). ) and a signal terminal portion (not shown) provided on the component mounting surface 12 a of the circuit board 12 . ), and each of the plurality of second ground contacts 28 included in the second contact row is connected to the end 49a ( 8 and 9 to be described later) to be contact-connected to the contact end portion 36 (shown in FIGS. 4 and 5 to be described later) and the component mounting surface 12a of the circuit board 12. It has a connection end portion 37 that is connected to a ground terminal portion (not shown) provided.

Under such circumstances, the connecting end portions 31 of the plurality of first signal contacts 25, the connecting end portions 33 of the plurality of first ground contacts 26, the respective connecting ends 33 of the plurality of second signal contacts 27 are connected. The connection end portion 35 and the connection end portions 37 of the plurality of second ground contacts 28 are both arranged on the common component mounting surface 12 a of the circuit board 12 . On the other hand, as shown in FIGS. 4 and 5 which is an enlarged view of the inside of the dashed-dotted line frame E in FIG. and the contact ends 32 of the plurality of first ground contacts 26, the arrangement in which two adjacent contact ends 30 are sandwiched by a pair of contact ends 32 is repeated. are arranged in the surface direction of the circuit board, and the contact ends 34 of the plurality of second signal contacts 27 and the plurality of second ground contacts 28 A second row of contact end portions 36 arranged in the surface direction of the circuit board in such a manner that two adjacent contact end portions 34 are sandwiched by a pair of contact end portions 36 are repeated. constitutes

A first contact end row including contact end portions 30 of the plurality of first signal contacts 25 and contact end portions 32 of the plurality of first ground contacts 26 and a plurality of second contact end portions. The second contact end row including the contact end portions 34 of the signal contacts 27 and the contact end portions 36 of the plurality of second ground contacts 28 are arranged on the component mounting surface 12 a of the circuit board 12 . , and the second row of contact ends are arranged in parallel rows positioned between the component mounting surface 12a of the circuit board 12 and the first row of contact ends.

Under such circumstances, each of the plurality of first ground contacts 26 included in the first contact row and each of the plurality of second ground contacts 28 included in the second contact row are connected to the plurality of second contact rows. The length from the contact end 32 to the connection end 33 of each of the first ground contacts 26 is twice the length from the contact end 36 to the connection end 37 of each of the plurality of second ground contacts 28. is selected to be large within a range not exceeding .

As shown in FIGS. 2 and 3 , each of the plurality of first signal contacts 25 and the plurality of first ground contacts 26 forming the first contact row is connected between the contact end portion 30 and the connection end portion 31 . It has an exposed portion in which a portion between the contact end portion 32 and the connection end portion 33 is partially exposed from the insulating housing 14 to the outside. The exposed portions of the first signal contact 25 and the first ground contact 26 are shown separated from the insulating housing 14 in FIG. 2, as shown in FIG. 14, which will be described later. It is covered with an insulating cover member 38 and further covered with a second shell member 17B that covers the insulating cover member 38 . The second shell member 17</b>B that covers the exposed portions of the first signal contact 25 and the first ground contact 26 in this way forms a covering portion of the conductive shell 17 .

The insulating cover member 38 has a plate-like shape as a whole, and covers the exposed portions of the plurality of first ground contacts 26 while covering the exposed portions of the first signal contacts 25 and the first ground contacts 26 . A through hole 39 is formed in each of a plurality of portions corresponding to . Further, the second shell member 17B has a plurality of portions protruding toward the inside, that is, toward the insulating cover member 38, at each of a plurality of portions corresponding to the plurality of through holes 39 when the insulating cover member 38 is covered. A contact portion 40 is formed which is intended to do so. Under such circumstances, the exposed portions of the first signal contact 25 and the first ground contact 26 are covered with the insulating cover member 38, and further covered with the second shell member 17B that covers the insulating cover member 38. In this case, the contact portion 40 formed on the second shell member 17B is included in the exposed portion of each of the plurality of first ground contacts 26 through the through holes 39 formed on the insulating cover member 38. 16, which will be described later) between the contact end 32 and the connection end 33 of the first ground contact 26. As shown in FIG. As a result, a state is obtained in which the intermediate portion 41 of each of the plurality of first ground contacts 26 is connected to the conductive shell 17 including the second shell member 17B. Ground potential is applied through conductive shell 17 to intermediate portion 41 in each of 26 .

At this time, each of the plurality of first ground contacts 26 has, for example, a length from the contact end portion 32 to the intermediate portion 41 (hereinafter referred to as a first contact length) and a length from the intermediate portion 41 to the connection end portion 33 . (hereinafter referred to as the second contact length) are substantially equal to each other, so that both the first contact length and the second contact length are equal to the plurality of second grounds. The length from the contact end portion 36 to the connection end portion 37 of each contact 28 is less than or equal to that. When each of the plurality of first ground contacts 26 has a first contact length and a second contact length substantially equal to each other, as described above, each of the plurality of first ground contacts 26 is The length from the contact end portion 32 to the connection end portion 33 is longer than the length from the contact end portion 36 to the connection end portion 37 of each of the plurality of second ground contacts 28 within a range not exceeding twice the length. so that the first contact length and the second contact length of each of the plurality of first ground contacts 26 are both the contact ends of each of the plurality of second ground contacts 28. 36 to the connection end 37 or less.

On the other hand, the mating connector device 13 forming a plug connector shown in FIG. 1 comprises an inner insulating housing 42 and an outer insulating housing 44 made of an insulating material such as synthetic resin, as shown in FIG. An outer conductive shell 43 is attached to the outer surface of the inner insulating housing 42 , and an engaging protrusion 45 is provided on the outer insulating housing 44 to engage with the inner insulating housing 42 . . The portion of the inner insulating housing 42 to which the outer conductive shell 43 is attached and the engaging projecting portion 45 provided on the outer insulating housing 44 form the insulating housing 14 of the connector device 11 described above. A fitting portion 15 to be inserted into the fitting opening portion 16 is formed.

FIG. 7 shows the mating connector assembly 13 with the outer insulating housing 44 removed therefrom and the inner insulating housing 42 separated with the outer conductive shell 43 mounted on the outer surface thereof. As shown in FIG. 7, the mating connector device 13 is connected to a plurality of coaxial cables 47 bundled and held by a pipe-shaped cable holding member 46 . In the mating connector device 13, as shown in FIG. 6, a cable holding member 46 holding a plurality of coaxial cables 47 is supported by an outer insulating housing 44, whereby the plurality of coaxial cables 47 are held. is fixed. A pair of contact support members 50 supporting a plurality of signal contacts 48 and a plurality of ground contacts 49 are stacked in the inner insulating housing 42 having the outer conductive shell 43 mounted on the outer surface thereof. An inner conductive shell 51 is attached to each of the pair of contact support members 50 to partially cover the outer surface thereof.

As shown in FIGS. 8 and 9 , each of the pair of contact support members 50 has a plurality of signal contacts 48 and a plurality of ground contacts 49 , and two adjacent signal contacts 48 are sandwiched between the pair of ground contacts 49 . It is supported as being arranged in a manner in which the arranged arrangement is repeated. One end portion of each of the plurality of signal contacts 48 supported by one of the pair of contact support members 50 forms an end portion 48 a that is contact-connected to the contact end portion 30 of the first signal contact 25 in the connector device 11 . One end portion of each of the plurality of ground contacts 49 supported by one of the pair of contact support members 50 is the contact end portion 32 of the first ground contact 26 in the connector device 11 . It forms an end portion 49a that is contact-connected to the . Similarly, one end portion of each of the plurality of signal contacts 48 supported by the other of the pair of contact support members 50 is contact-connected to the contact end portion 34 of the second signal contact 27 in the connector device 11. One end portion of each of the plurality of ground contacts 49 formed by the portion 48 a and supported by the other of the pair of contact support members 50 is the contact point of the second ground contact 28 in the connector device 11 . It forms an end portion 49a that is contact-connected to the end portion 36. As shown in FIG.

Each of the pair of contact support members 50 includes a ground bar member 52 extending along the direction in which the plurality of signal contacts 48 and the plurality of ground contacts 49 are arranged and to which a ground potential is applied. As shown in FIGS. 10 and 11, the ground bar member 52 is penetrated by the central conductors 47a and the inner insulators 47b of the plurality of coaxial cables 47 arranged along the ground bar member 52. Electrical connections are made with the respective outer conductors of a plurality of coaxial cables 47 . Further, the ground bar member 52 is provided with a plurality of ground pins 53 each protruding toward the distal end side of the central conductor 47a of the coaxial cable 47 penetrating the ground bar member 52. A ground potential is applied to each of the ground pins 53 .

Under such circumstances, in each of the pair of contact support members 50, the center conductors 47a of the plurality of coaxial cables 47 passing through the ground bar member 52 are connected to the other ends of the plurality of signal contacts 48 supported by the contact support member 50. A plurality of ground pins 53 provided on the ground bar member 52 are connected to the other end portions of the plurality of ground contacts 49 supported by the contact support member 50, respectively. As a result, each of the plurality of signal contacts 48 in the mating connector device 13 is connected to the central conductor 47a of the coaxial cable 47, and each of the plurality of ground contacts 49 in the mating connector device 13 is grounded. is connected to the ground pin 53 provided on the ground bar member 52 to which the .

12 (perspective view), 13 (top view) and 14 (side view) show a connector device 11 attached to a circuit board 12 in electrical connection with electrical circuit components provided thereon. The counterpart connector device 13 to which a plurality of coaxial cables 47 held by a cable holding member 46 are connected is shown in a state of being fitted and connected.

The mating connection of the mating connector device 13 to the connector device 11 is achieved by the engagement protrusion provided on the outer insulating housing 44 and the portion of the inner insulating housing 42 of the mating connector device 13 to which the outer conductive shell 43 is attached. The fitting portion 15 configured by the portion 45 is inserted into the fitting opening portion 16 provided in the insulating housing 14 of the connector device 11 . At this time, although not shown, the locking portion provided on the insulating housing 14 of the connector device 11 is engaged with the locked portion provided on the outer insulating housing 44 of the mating connector device 13, whereby The state in which the counterpart connector device 13 is fitted and connected to the connector device 11 is maintained.

When the mating connector device 13 is fitted and connected to the connector device 11, the insulating housing 14 of the connector device 11 is fitted as shown in FIG. After the fitting portion 15 of the mating connector device 13 is inserted into the provided fitting opening portion 16, the contact end portions 30 of the plurality of first signal contacts 25 included in the first contact row of the connector device 11 are engaged. Then, the ends 48a of the corresponding ones of the plurality of signal contacts 48 each having the other end portion connected to the center conductor 47a of the coaxial cable 47 in the mating connector device 13 are contact-connected. As a result, the central conductor 47a of the coaxial cable 47 is connected through the first signal contact 25 to the signal terminal portion provided on the component mounting surface 12a of the circuit board 12 to which the connection end portion 31 of the first signal contact 25 is connected. connected to

At the same time, although not shown, the contact ends 34 of the plurality of second signal contacts 27 included in the second contact row of the connector device 11 are also connected to the other ends of the mating connector device 13 . The ends 48a of the corresponding ones of the plurality of signal contacts 48, to which the central conductor 47a of the coaxial cable 47 is connected, are contact-connected. As a result, the central conductor 47a of the coaxial cable 47 is connected through the second signal contact 27 to the signal terminal portion provided on the component mounting surface 12a of the circuit board 12 to which the connection end portion 35 of the second signal contact 27 is connected. connected to

Further, as shown in FIG. 16, which partially shows the XVI-XVI line cross section in FIG. Then, the ground bar member 52 is provided at the contact end portion 32 of each of the plurality of first ground contacts 26 included in the first contact row in the connector device 11 and at the other end portion of each of the plurality of ground contacts 26 in the mating connector device 13 . The ends 49a of the corresponding ones of the plurality of ground contacts 49 to which the ground pins 53 are connected are contact-connected. Since the contact portion 40 formed on the second shell member 17B constituting the conductive shell 17 abuts on the intermediate portion 41 of each of the plurality of first ground contacts 26, the first By contact-connecting the ends 49a of the corresponding ones of the plurality of ground contacts 49 of the mating connector device 13 to the respective contact ends 32 of the ground contacts 26 of the mating connector device 13, the component mounting surface 12a of the circuit board 12 is connected thereto. A ground potential is applied to each of the connection end portion 33, the contact end portion 32, and the intermediate portion 41, which are connected to the ground terminal portion provided in the .

At the same time, although not shown, the contact end portions 36 of the plurality of second ground contacts 28 included in the second contact row in the connector device 11 are connected to the other end portions of the mating connector device 13 . The ends 49a of the corresponding ones of the plurality of ground contacts 49 to which the ground pins 53 provided on the ground bar member 52 are connected are contact-connected. As a result, each of the plurality of second ground contacts 28 has a connection end portion 37 connected to a ground terminal portion provided on the component mounting surface 12a of the circuit board 12 and a contact end portion 36 connected to the ground. A potential is applied.

Under such circumstances, each of the plurality of first ground contacts 26 included in the first contact row in the connector device 11 has a first contact length from the contact end portion 32 to the intermediate portion 41. has a first resonance frequency corresponding to 1/2 wavelength and a second contact length, which is the length from intermediate portion 41 to connection end portion 33, has a second resonance frequency corresponding to 1/2 wavelength. Also, each of the plurality of second ground contacts 28 included in the second contact row in the connector device 11 has a resonance frequency corresponding to a half wavelength of the length from the contact end portion 36 to the connection end portion 37. will have Then, as described above, each of the plurality of first ground contacts 26 has both the first contact length and the second contact length, and the contact end portion 36 of each of the plurality of second ground contacts 28 to the connection end portion 37, the first resonance frequency and the second resonance frequency of each of the plurality of first ground contacts 26 are equal to or less than the length of each of the plurality of second ground contacts 26. is equal to or higher than the resonance frequency of each of the ground contacts 28. Thereby, the connector device 11 can set the frequency range below the resonance frequency of each of the plurality of second ground contacts 28 as the effective transmission frequency band.

In the connector device 11 as described above, the length from the contact end portion 32 to the connecting end portion 33 of each of the plurality of first ground contacts 26 included in the first contact row is the length of the second contact row. The length from the contact end portion 36 to the connection end portion 37 of each of the plurality of second ground contacts 28 included in the plurality of first ground contacts 26 is selected to be larger than twice the length from the contact end portion 36 to the connection end portion 37. The intermediate portion 41 between the contact end portion 32 and the connection end portion 33 of each of the is connected to the conductive shell 17, so that each of the plurality of first ground contacts 26 has the first ground contacts 26. Since both the resonance frequency and the second resonance frequency can be made equal to or higher than the resonance frequency of each of the plurality of second ground contacts 28, the effective transmission frequency band limited by the resonance frequency is The length from contact end 36 to connection end 37 is greater than the length from contact end 32 to connection end 33 of first ground contact 26 without being limited by the resonant frequency of first ground contact 26 . It will be possible to extend the frequency band to a frequency range that does not reach the resonance frequency of the second ground contact 28, which is chosen to be small.

The connector device according to the present invention as described above comprises a plurality of signal contacts and a plurality of ground contacts supported by an insulating housing arranged on a component mounting surface of a circuit board, and each of the plurality of signal contacts is mounted on the circuit board. It has a connection end portion connected to a signal terminal portion provided on a component mounting surface and a contact end portion connected to an end portion of a signal contact in a mating connector device, and each of a plurality of ground contacts is connected to a circuit board. It has a connection end portion connected to a ground terminal portion provided on a component mounting surface and a contact end portion connected to an end portion of a ground contact in a mating connector device, and includes a plurality of signal contacts and a plurality of grounds. The contact ends of the contacts form a first contact end row and a second contact end row, which are parallel rows arranged in the surface direction of the circuit board. It can be widely applied to various electronic devices and the like as it can expand the frequency band.

DESCRIPTION OF SYMBOLS 11... Connector apparatus, 12... Circuit board, 13... Mating connector apparatus, 14... Insulating housing, 15... Fitting part, 16... Fitting opening part, 17... Conductivity 17A First shell member 17B Second shell member 18 Ground potential portion 19, 20 Engagement projection 21 Contact projection 25... first signal contact, 26... first ground contact, 27... second signal contact, 28... second ground contact, 30, 32, 34, 36... Contact end portions 31, 33, 35, 37 Connection end portion 38 Insulating cover member 39 Through hole 40 Contact portion 41 Intermediate portion 42 Inner insulating housing 43 Outer conductive shell 44 Outer insulating housing 45 Engagement protrusion 46 Cable holding member 47 Coaxial cable 47a Center Conductor 48 signal contact 48a end (of signal contact 48) 49 ground contact 49a end (of ground contact 49) 50 contact support member 51... Inner conductive shell, 52... Ground bar member, 53... Ground pin

Claims (8)

an insulating housing arranged on the component mounting surface of the circuit board;
A plurality of first signals each having a contact end portion contact-connected to an end portion of a signal contact of the mating connector device and a connection end portion connected to a signal terminal portion provided on the component mounting surface of the circuit board. A plurality of first contacts each having a contact end connected to an end of a ground contact of a mating connector device and a connection end connected to a ground terminal provided on the component mounting surface of the circuit board. a first contact row in which the ground contacts are arranged in a direction along the component mounting surface of the circuit board and supported by the insulating housing;
A plurality of second signals each having a contact end portion contact-connected to an end portion of a signal contact of the mating connector device and a connection end portion connected to a signal terminal portion provided on the component mounting surface of the circuit board. a plurality of second contacts each having a contact end portion contact-connected to an end portion of a ground contact of the mating connector device and a connection end portion connected to a ground terminal portion provided on the component mounting surface of the circuit board; a second row of contacts arranged in a direction along the component mounting surface of the circuit board and supported by the insulating housing;
a conductive shell attached to the outer surface of the insulating housing and supplied with a ground potential;
configured with
In the first contact end portion row formed by the contact end portions of the plurality of first signal contacts and the plurality of first ground contacts included in the first contact row and the second contact row and a second contact end row formed by the contact end portions of the plurality of second signal contacts and the plurality of second ground contacts included, and the second contact end row formed by the circuit board. and the contact end portion of each of the plurality of first ground contacts included in the first contact row arranged in parallel rows positioned between the component mounting surface of and the first contact end row and the connection end portion is between the contact end portion and the connection end portion of each of the plurality of second ground contacts included in the second contact row. Each of the plurality of second ground contacts has the ground potential between the contact end portion and the connection end portion, the length being selected to be larger than the length of the portion located within the range not exceeding twice the length thereof. A connector characterized in that an intermediate portion between the contact end and the connection end of each of the plurality of first ground contacts is connected to the conductive shell without being connected to a given portion. Device. A length of a portion of each of the plurality of first ground contacts included in the first contact row and located between the contact end portion and the connection end portion is included in the second contact row. The plurality of ground contacts are selected so as to be longer than the length of the portion located between the contact end portion and the connection end portion of each of the plurality of second ground contacts within a range not exceeding twice the length. Both the length of the portion located between the contact end portion and the intermediate portion and the length of the portion located between the intermediate portion and the connection end portion in each of the first ground contacts of , the length of a portion of each of the plurality of second ground contacts located between the contact end and the connection end. Each of the plurality of first ground contacts is between the length of the portion of the first ground contact located between the contact end portion and the intermediate portion and between the intermediate portion and the connection end portion. 3. The connector device of claim 2, wherein the lengths of the located portions are substantially equal. Each of the plurality of first signal contacts and the plurality of first ground contacts forming the first contact row partially extends between the contact end portion and the connection end portion of the insulating housing. 2. The connector device according to claim 1, further comprising an exposed portion exposed to the outside of said insulating housing, said exposed portion being covered by a covering portion of said conductive shell. 5. The connector device according to claim 4, wherein the covering portion of the conductive shell is formed with a contact portion abutting against the intermediate portion of each of the plurality of first ground contacts. an insulating cover member covering the exposed portions of each of the plurality of first signal contacts and the plurality of first ground contacts included in the first contact row, the insulating cover member covering the conductive shell; 6. The connector device according to claim 5, wherein the cover portion of the conductive shell is covered with a through-hole through which the contact portion formed in the cover portion of the conductive shell passes. The conductive shell comprises a first shell member covering the outer surface of the insulating housing, and a second shell member formed separately from the first shell member and electrically connected to the first shell member. 5. The connector device according to claim 4, wherein said second shell member forms a covering portion of said conductive shell. 2. The connector device according to claim 1, wherein said insulating housing has a fitting opening into which said insulating housing supporting said signal contacts and said ground contacts of said mating connector device is fitted and connected.

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