JP2000285995A - Card connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card connector having structure capable of reducing depth dimension. SOLUTION: This card connector 2 is constituted by assembling a card side connector 3 and a board side connector 4. Ground terminals 9 are installed every step of a terminal line, the ground terminals 9 in each step are connected with a connecting terminal 10 extending over terminal lines of plural steps in the crossing direction to the terminal line, and each ground terminal 9 can be connected to a ground circuit on a circuit board side for mounting an insulating housing 5 through the connecting terminal 10. Connecting tails 8 of pin terminals 6 of the card side connector 3 are arranged in a line on the rear surface of the insulating housing 5, engaging tails of signal connecting terminals 22 of the board side connector 4 are arranged in a line on the front surface of an insulating housing 21, and these tails are engaged each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card connector to which a PC card or other memory card device can be connected.

[0002]

2. Description of the Related Art Conventionally, a card connector of this type has a terminal row of pin terminals which fits into a row of sockets provided along an edge on the card side in an insulating housing, and an outer panel of the card. And a ground terminal that engages with the terminal row along the terminal row. The terminal row of the pin terminals is provided in one stage corresponding to one card (for example, see Japanese Patent Application Laid-Open No. 9-54898),
There are cards provided in a plurality of stages corresponding to two or more cards. In some cases, an eject mechanism is provided on the side of the insulating housing to take out a connected card in which a socket is fitted to a terminal row.

The ground terminal needs to be connected to a ground circuit of a circuit board on which the card connector is mounted. In the case of a single-stage structure as disclosed in Japanese Patent Application Laid-Open No. 9-54898, a pin terminal is used. Generally, a ground terminal is formed to extend from an outermost shield plate provided so as to cover a tail extending rearward, and the ground terminal and the ground circuit are generally connected via the shield plate.

When a plurality of pin terminal rows are provided, the connection using the shield plate as described above cannot be performed. For this reason, in a multi-stage configuration, it is common to arrange a relay circuit board behind the insulating housing. The tails of the pin terminal and the ground terminal are temporarily connected to the relay circuit board, and the relay circuit board and the circuit board on which the connector is mounted are connected with a card edge connector or a board connection connector (board-to-board connector). The connection allows the connection between the ground terminal and the ground circuit to be formed.

[0005]

However, the above-described means for connecting the ground terminal to the ground circuit has a problem that it is difficult to reduce the size of the card connector, especially the depth dimension. This is because the shield plate projects greatly behind the tail of the pin terminal, and the relay circuit board is disposed behind the insulating housing. In addition, the use of the relay circuit board not only increases the number of components, but also increases the cost of the circuit board and the cost of the connector for connection, and has a problem that it is difficult to reduce the cost.

The present invention has been made in view of the above problems, and has as its object to provide a card connector having a structure capable of reducing the depth dimension.

[0007]

SUMMARY OF THE INVENTION The card connector according to the present invention, which has been made with the above object, connects ground terminals provided in a plurality of stages with connection terminals, and connects the ground terminals to the ground circuit. It was configured to be able to be made via this connection terminal.

That is, the present invention has a structure in which a plurality of terminal rows of pin terminals to be fitted to a socket of a card are provided, and ground terminals which can be engaged with an outer panel of the card are provided along the terminal row. In the card connector, the ground terminal is provided for each stage of the terminal row, and the ground terminal of each stage is a connection terminal extending over a plurality of terminal rows in a direction intersecting with the terminal row. A card connector, wherein each of the ground connectors is connected to a ground circuit on a circuit board side on which the insulating housing is mounted via a connection terminal.

According to the card connector of the present invention configured as described above, the ground terminal and the ground circuit can be connected via the connection terminal. It is not necessary to arrange a circuit board for relay. As a result, the depth dimension of the entire card connector can be reduced.

An object of the present invention to reduce the depth dimension is to provide a plurality of rows of terminal rows of pin terminals to be fitted to a socket of a card, and to further provide a ground terminal which can be engaged with an outer panel of the card. In a card connector provided along a terminal row, a card-side connector for receiving the card, and the card-side connector is connectable to connect a pin terminal of the card-side connector to a signal circuit of a circuit board. And a connection tail of a pin terminal of the card-side connector is aligned with a rear surface of an insulating housing constituting the card-side connector, and The engagement tail of the signal connection terminal of the connector is aligned with the front of the insulating housing that constitutes the board side connector, and the card side connector is Binding of motor and the substrate-side connector, the engagement tails of the connection tail to the signal connection terminals of the pin terminals is also achieved by a card connector being characterized in that to be connected engage.

By arranging all the engagement tails of the signal connection terminals of the board side connector on the front surface, that is, one side of the insulating housing constituting the board side connector, the connection between the signal connection terminals and the pin terminals of the card side connector is achieved. Can be formed in a very narrow area to avoid an increase in the depth dimension.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 to 3 show a card connector 2 according to an embodiment to which a PC card 1 can be connected. The card connector 2 is formed by combining a card-side connector 3 and a board-side connector 4 that can be connected to each other.

The card-side connector 3 will be described with reference to FIGS. 1 to 3 and FIGS.
In addition, pin terminals 6 connected to a socket (not shown) provided at the edge of the PC card 1 are provided in two rows of upper and lower rows, forming two rows of terminals 7 in each row. Each pin terminal 6
The connection tails 8 penetrate the insulating housing 5 in the front-rear direction in the front-rear direction, and the connection tails 8 formed by bending the rear end at a substantially right angle are arranged in a row in each row on the rear surface of the insulating housing 5. The alignment pitch of the connection tail 8 is half the alignment pitch of the pin terminals 6.

On the upper side of each of the terminal rows 7, a plurality of ground terminals 9 are further provided side by side at a predetermined pitch along the terminal rows 7, and are engaged with the surface of the outer panel of the PC card 1. I can do it. Upper terminal row 7
And the ground terminals 9 provided along the lower terminal row 7 are located at substantially the same position in the horizontal direction.

The connection terminal 1 is formed so as to penetrate both the upper ground terminal 9 and the lower ground terminal 9.
0 is provided. The connection terminals 10 extend over the upper and lower terminal rows 7 in a direction intersecting with the terminal rows 7 of the pin terminals 6 so as to sew a gap between the parallel pin terminals 6.
It is in a state of being buried in the insulating housing 5 by penetrating the insulating housing 5 in the vertical direction. 3 and 10
As shown in FIG. 2, the connection terminal 10 is a terminal formed in an inverted U shape so as to be common to a pair of adjacent ground terminals 9. Details will be described later.

Each connection terminal 10 has a length such that the lower end thereof penetrates through the insulating housing 5 and slightly protrudes from the bottom surface 5a, and the protruding portion is connected at the bottom surface 5a of the insulating housing 5 as shown in FIG. They are arranged as an end 10a.

Side arm portions 5b extend forward from both ends of the insulating housing 5, and an eject mechanism 12 is provided on one side arm portion 5b so as to correspond to each terminal row 7. The eject mechanism 12 has a structure in which an eject rod 13 and a push rod 14 are connected to each other with a molded gear 15 interposed therebetween. Has become. A hook 18 is formed at the tip of the eject rod 13 so as to face the side of the terminal row 7 so as to be able to engage with the edge of the PC card 1.

Reference numeral 19 denotes a substantially rectangular metal shell installed on the upper surface of the insulating housing 5 so as to cover the upper surface of the PC card 1 connected to the upper terminal row 7. The side arm 5 of the insulating housing 5 is provided on the side edge of the metal shell 19.
Forming grooves 11 forming a card guide in cooperation with b. A rear cover 26 that covers the rear surface of the board-side connector 4 is connected to the rear edge of the metal shell 19. An insertion port 20 is open in front of the insulating housing 5.

FIG. 9 is a perspective view showing, in an enlarged scale, a portion where the connection terminal 10 is installed. Connection terminal 10
Are formed in an inverted U-shape as shown in FIG. The connection terminal 10 is installed so as to pass through the ground terminal 9 provided along the terminal row 7 of the insulating housing 5 from above (indicated by an arrow A in FIG. 9). As shown in FIG. 11, the ground terminal 9 is formed by stamping a thin metal plate, and corresponds to two pairs of connection terminals 10 and has an engaging hole 9a for each pair of adjacent terminals.
Are formed offset. In addition, each engagement hole 9a
The contact terminals 9b in a cantilever state are formed opposite to each other, and the connection terminals 10 are inserted through the opposed gaps, engage with each other, and electrically connect the ground terminals 9 and the connection terminals 10 to each other. Is surely formed.

Next, as shown in FIGS. 12 and 13, the board side connector 4 comprises an L-shaped insulating housing 21, a signal connection terminal 22, and a ground connection terminal 23. I have. The signal connection terminal 22 is attached to the vertical wall 21a of the insulating housing 21 from the bottom side according to the pitch of the connection tail 8, and the engagement tail 22
a faces the front surface of the vertical wall 21a. Two types of signal connection terminals 22 having different lengths are used so that the engagement tails 22a are aligned in the upper and lower stages in correspondence with the connection tails 8 being arranged in the upper and lower stages. Each has a solder tail 22b extending forward or backward along the bottom surface of the insulating housing 21.

As shown in FIGS. 14 and 15, the ground connection terminal 23 is formed by punching a thin metal plate. Each two of the connection terminals 10 correspond to a pair, and every two terminals form a pair, and a mounting engagement piece 27 is provided at the center. It is mounted on the lateral wall 21b of the insulating housing 21 from the front so that the mounting engagement piece 27 is engaged inside the lateral wall 21b. The solder tail 23 a extending along the bottom surface of the insulating housing 21 is also provided on the ground connection terminal 23.
Is provided. The connection terminal 1 is provided on the board portion 23b which is embedded in the lateral wall 21b of the insulating housing 21.
An engagement hole 24 is formed at the lower end of the housing 0 so that the connection end 10a protruding from the bottom surface 5a of the insulating housing 5 can be fitted and locked. And the insulating housing 21
On the side wall 21b, which matches with the engagement hole 24,
A through hole 25 for receiving the connection end 10a is formed so as to match the position of the connection end 10a.

As shown in FIG. 14, the engagement hole 24 formed in the substrate portion 23b of the ground connection terminal 23
A U-shaped contact 24 a is provided in a cantilever state, and a contact 24 b at the tip faces the edge of the engaging hole 24, and the facing gap matches the through hole 25. Therefore, when the connection end 10a of the connection terminal 10 is inserted, the contact 2
4b is engaged with the wall surface of the connection end 10a, and the connection terminal 10
The electrical connection between the ground connection terminal 23 and the ground connection terminal 23 is ensured.

The board-side connector 4 configured as described above
The card connector 2 of this embodiment is configured by combining the two together so that the card-side connector 3 is overlapped with the card connector 2. In the combined state, the connection tail 8 of the pin terminal 6 and the engagement tail 22a of the signal connection terminal 22 are electrically engaged in a one-to-one relationship. The connection terminals 10 provided through the upper and lower ground terminals 9 are:
The lower connection end 10a is fitted into an engagement hole 24 formed in the substrate portion 23b of the ground connection terminal 23 to be electrically engaged.

A circuit board (not shown) is mounted in this combined state. The solder tail 22b of the signal connection terminal 22 is soldered to the signal circuit of the circuit board, and the solder tail 23a of the ground connection terminal 23 is soldered to the ground circuit of the circuit board. The pin terminal 6 and the signal circuit on the circuit board are connected via the signal connection terminal 22. The ground terminal 9 is connected to the insulating housings 5 and 2 via the connection terminal 10 and the ground connection terminal 23.
1 is connected to the ground circuit of the circuit board.

The ground terminals 9 provided in each of the terminal rows 7 provided in a plurality of stages are connected by connecting terminals 10 extending over the plurality of terminal rows 7 in a direction intersecting with the terminal rows 7. Since the ground terminal 9 and the ground circuit of the circuit board can be connected via the connection terminal 10, a conductive member protruding greatly behind the card connector 2 and a circuit board for relaying the ground terminal 9 are provided. Can be eliminated, and the depth dimension (dimension in the front-rear direction) as the card connector 2 can be reduced. Therefore, high-density mounting on a circuit board can be achieved.

Since the connection terminal 10 to which the ground terminal 9 is connected can be connected to the ground circuit of the circuit board below the insulating housing 5, the area for connecting the ground circuit around the insulating housing 5 is reduced. It is not necessary to secure it. As a result, as the circuit board, other electronic components can be mounted around the insulating housing 5 such as the lower side of the PC card, and further high-density mounting can be realized.

Further, the connection tail 8 of the pin terminal 6 of the card-side connector 3 constituting the card connector 2 is aligned with the rear surface of the insulating housing 5 of the card-side connector 3, and the board-side connector constituting the card connector 2 is arranged. 4 with the engagement tail 22a of the signal connection terminal 22
When the card-side connector 3 and the board-side connector 4 are connected to each other in alignment with the front surface of the insulating housing 21, the connection tail 8 and the engagement tail 22 a are brought into abutting engagement to be electrically connected. Pin terminal 6 and signal connection terminal 2
2 can be composed of a very small area,
This also makes it possible to avoid an increase in the depth dimension of the card connector 2 and make the card connector 2 miniaturized.

The configuration of the card connector with the card-side connector and the board-side connector can be implemented even with a single-row terminal row. 16 and 17 show an embodiment of the card connector 102 having a single terminal row.

In this embodiment, the card-side connector 103 and the board-side connector 104 are connected in the same manner as in the above-described embodiment. The pin terminals 106 of the card-side connector 103 are mounted in two rows on the insulating housing 105 in the front-rear direction, and the terminal row 107 is formed in one stage. Pin terminal 1
Reference numeral 06 is bent at a substantially right angle on the rear surface of the insulating housing 105 so that the connection tails 108 are aligned in a row. No ground terminal is provided.

On the other hand, in the board side connector 104, the signal connection terminals 122 are mounted on the insulating housing 121 at the same pitch as the pitch of the connection tail 108, and the engagement tail 122 a is provided on the front surface of the vertical wall of the insulating housing 121. I'm facing. The solder tail 122b is connected to the insulating housing 12
1 extends forward along the bottom surface.

Also in this embodiment, the pin terminal 106
And the signal connection terminal 122 can be connected in an extremely narrow area, and an increase in the depth dimension of the card connector 102 can be avoided. In the case of this embodiment, the pin terminal 106 formed via the signal connection terminal 122 is used.
And the connection part of the signal circuit of the circuit board, that is, the solder tail 1
The soldering portions 22b are replaced with insulating housings 105 and 121.
And is not formed outside.

[0033]

As described above, according to the present invention,
A connection terminal is provided in the direction crossing the terminal row, and the ground terminals provided above and below are connected via the connection terminal.This simplifies the terminal configuration for connecting the ground terminal and the ground circuit. Thus, the depth dimension of the card connector can be reduced.

The card connector is constructed by combining the card side connector and the board side connector, and the pin terminal of the card side connector and the signal connection terminal of the board side connector are connected to the rear surface of the insulating housing of the card side connector and the board. Since the side connectors are in contact with each other on the front surface of the insulating housing, the connection between the pin terminals and the signal connection terminals can be configured in an extremely narrow area, and thus the depth dimension of the card connector can be reduced. .

[Brief description of the drawings]

FIG. 1 is a sectional view of a card connector according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of FIG.

FIG. 3 is a plan view showing a part of the card connector cut away.

FIG. 4 is a plan view of a card-side connector constituting the card connector of the embodiment.

FIG. 5 is a front view of the card-side connector.

FIG. 6 is a rear view of the card-side connector.

FIG. 7 is a side view of the card-side connector.

FIG. 8 is a bottom view of the card-side connector.

FIG. 9 is an enlarged perspective view schematically showing a portion where connection terminals of the card-side connector are installed.

FIG. 10 is a perspective view of a connection terminal.

FIG. 11 is a plan view showing a state in which a ground terminal is stamped and formed.

FIG. 12 is an enlarged cross-sectional view of a board-side connector constituting the card connector of the embodiment.

FIG. 13 is an enlarged plan view of the board-side connector.

FIG. 14 is a plan view showing a state in which a ground connection terminal of the board-side connector is stamped and formed.

FIG. 15 is a side view of the ground connection terminal in a punch-formed state.

FIG. 16 is a cross-sectional view of an embodiment in which the terminal row is one stage.

FIG. 17 is a partially enlarged cross-sectional view of the embodiment in which the terminal row is also one stage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 PC card 2, 102 Card connector 3, 103 Card side connector 4, 104 Board side connector 5, 105 Insulated housing 5a Bottom surface of insulated housing 5b Side arm part of insulated housing 6, 106 Pin terminal 7, 107 Terminal row 8 , 108 Connection tail 9 Ground terminal 9a Engagement hole 9b Contact 10 Connection terminal 10a Connection end 11 Molded groove 21, 121 Insulating housing 22, 122 Signal connection terminal 22a, 122a Engagement tail 22b, 122b Solder tail 23 Ground Connection terminal 23a Solder tail 23b Board part 24 Engagement hole 24a Contact 24b Contact 25 Through hole 26 Rear cover 27 Mounting engagement piece

Claims (12)

[Claims] 1. A terminal row 7 of pin terminals 6 to be fitted to a socket of a card 1 is provided in a plurality of stages, and a ground terminal 9 engageable with an outer panel of the card 1 is provided along the terminal row 7. In the card connector 2 having the configuration described above, the ground terminals 9 are provided for each stage of the terminal row 7, and the ground terminals 9 of each stage are arranged in a plurality of terminal rows in a direction crossing the terminal row 7. Connection terminal 1 extending over 7
0, wherein each ground terminal 9 is connectable to a ground circuit on the circuit board side via a connection terminal 10. 2. The connection terminal 10 is provided so as to be embedded in an insulating housing 5 on which the pin terminal 6 is mounted, and is connectable to a ground circuit of a circuit board below the insulating housing 5. Item 2. The card connector according to Item 1. 3. The connection terminal 10 is inserted so as to pass through an engagement hole 9a formed in the ground terminal 9, and the contact 9b provided in the engagement hole 9a is engaged with the connection terminal 10. The card connector according to claim 1, wherein 4. A plurality of terminal rows 7 of pin terminals 6 to be fitted to sockets of the card 1 are provided, and ground terminals 9 engageable with the outer panel of the card 1 are provided along the terminal rows 7. In the card connector 2 having the configuration described above, the card connector 3 for receiving the card 1 and the card connector 3 are connectable to connect the pin terminals 6 of the card connector 3 to the signal circuit of the circuit board. And a connection tail 8 of the pin terminals 6 of the card-side connector 3.
Are aligned with the rear surface of the insulating housing 5 constituting the card-side connector 3, and the engaging tail 22 a of the signal connection terminal 22 of the board-side connector 4 is arranged on the front surface of the insulating housing 21 constituting the board-side connector 4. The connection tail 8 of the pin terminal 6 and the engagement tail 22a of the signal connection terminal 22 are engaged and connected by coupling the card-side connector 3 and the board-side connector 4. A card connector. 5. The connection tails 8 of the pin terminals 6 of the card-side connector 3 are aligned in one row for each terminal row 7, and the engagement tails 22a of the signal connection terminals 22 of the board-side connector 4.
5. The card connector according to claim 4, wherein the connectors are arranged in correspondence with each row of the connection tail. 6. A terminal row 7 of pin terminals 6 to be fitted into a socket of the card 1 is provided in a plurality of stages, and a ground terminal 9 engageable with an outer panel of the card 1 is provided along the terminal row 7. In the card connector 2 having the configuration described above, the card connector 3 for receiving the card 1 and the card connector 3 are connectable to connect the pin terminals 6 of the card connector 3 to the signal circuit of the circuit board. And a connection tail 8 of the pin terminals 6 of the card-side connector 3.
Are aligned with the rear surface of the insulating housing 5 constituting the card-side connector 3, and the engaging tail 22 a of the signal connection terminal 22 of the board-side connector 4 is arranged on the front surface of the insulating housing 21 constituting the board-side connector 4. The connection tail 8 of the pin terminal 6 and the engagement tail 22a of the signal connection terminal 22 are engaged and connected by coupling the card-side connector 3 and the board-side connector 4. The ground terminal 9 is provided for each stage of the terminal row 7, and the ground terminal 9 of each stage extends over a plurality of terminal rows 7 in a direction crossing the terminal row 7. Each of the ground terminals 9 is connected by a terminal 10 and is connected to a ground connection terminal 23 provided on the board-side connector 4 via the connection terminal 10. Connector for the card to be. 7. The connection tails 8 of the pin terminals 6 of the card-side connector 3 are aligned in one row for each terminal row 7, and the engagement tails 22a of the signal connection terminals 22 of the board-side connector 4.
7. The card connector according to claim 6, wherein the connectors are arranged corresponding to each row of the connection tail. 8. The connection terminal 10 is provided so as to be embedded in the insulating housing 5 of the card-side connector 3, and engages with the ground connection terminal 23 provided on the board-side connector 4 below the insulating housing 5. The card connector according to claim 6, wherein the card connector is connected to the card. 9. The connection terminal 10 is inserted so as to pass through an engagement hole 9a formed in the ground terminal 9, and the contact 9b provided in the engagement hole 9a is engaged with the connection terminal 10. The card connector according to any one of claims 6 to 8, wherein: The connection terminal has a connection end protruding from a bottom surface of the insulating housing, and the connection end is inserted into an engagement hole formed in the ground connection terminal. Contact 24a provided in mating hole 24
Are adapted to engage with the connection end 10a.
Card connector according to 1. 11. A card connector 2, 102 provided with a terminal row 7, 107 of pin terminals 6, 106 to be fitted with a socket of the card 1, wherein the card side connectors 3, 103 for receiving the card 1 are provided.
And the pin terminals 6, 106 of the card-side connectors 3, 103.
Connection terminal 2 for connecting the signal circuit on the circuit board
And pin terminals 6, 106 of the card-side connectors 3, 103.
Of the card-side connectors 3, 10
3 are arranged on the rear surfaces of the insulating housings 5 and 105, and the engagement tails 22a and 122a of the signal connection terminals 22 and 122 of the board-side connectors 4 and 104, respectively.
Are aligned with the front surfaces of the insulating housings 21 and 121 constituting the board-side connectors 4 and 104, respectively.
4, the connection tails 8, 108 of the pin terminals 6, 106 and the engagement tails 22a, 122a of the signal connection terminals 22, 122 engage and connect. Connector. 12. The board-side connector 104 is configured such that the solder tail 122b of the signal connection terminal 122 is insulated from the insulating housing 1.
The card connector according to claim 11, wherein the card connector extends forward along a bottom surface of the card.