JP2002260757A - Card connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card connector which can achieve high-density mounting of electronic components by making a mounting area as small as possible of electronic components on a circuit board for a connector reduced in size by a card insertion and removal lever mechanism is to be mounted on. SOLUTION: The card connector 1 is provided with a card insertion and removal lever mechanism 30 carrying out an insertion of a card C into a housing 10 and pulling it out from the housing 10. The card insertion and removal lever mechanism 30 is structured with rail members 31A, 31B, fitted to the housing 10 so as to be extended almost in parallel with the surface of a printed circuit board PCB, slider members 32A, 32B fitted to the rail members 31A, 31B in free sliding movement and holding the card C, a lever member 33 fitted to the rail members 31A, 31B in free turning so as to turn in the direction orthogonal to the surface of the printed circuit board PCB, and link members 34a, 34B combining the lever member 33 and the slider members 32A, 32B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card connector for detachably connecting a card such as a memory module card having electronic components mounted on a circuit board to a separate circuit board. The present invention relates to a card connector provided with a card insertion / removal boost mechanism.

[0002]

2. Description of the Related Art Conventionally, a card connector for detachably connecting a card such as a memory module card having electronic components mounted on a circuit board to a separate circuit board has been used in personal computers and the like. It is used. This card connector is provided with a large number of contacts exceeding 100 (for example, contacts having nearly 200 poles) with the progress of electronic devices in recent years. When inserting or removing the above-mentioned card from the multi-pole card connector, a very large insertion / extraction force is required. Therefore, a card insertion / extraction booster mechanism for facilitating the insertion / extraction is provided in the card connector. .

As a card connector provided with the card insertion / extraction mechanism, for example, a connector shown in FIG. 9 is known (see US Pat. No. 4,778,401). The card connector 101 has a pair of support members 1.
03 (only one is shown), and is located in front (see FIG. 9).
(A) A housing 102 for receiving a card 110 inserted rearward from the left) and a plurality of contacts (not shown) for contacting a plurality of pads 111 of the inserted card 110. I have. Here, as shown in FIG. 9B, the card 110 is formed of a circuit board having an electronic component 112 mounted on the upper surface thereof.

[0004] Each support member 103 has a card 1
Card insertion / removal booster mechanism 1 for facilitating insertion / removal of card 10
04 is provided. This card insertion / removal booster mechanism 10
4 is a card pushing member 105 and a card discharging member 107
And a connecting rod 106 attached to the card pushing member 105 and the card discharging member 107 via pins 106a and 106b, respectively. Here, the card pushing member 105 is rotatably mounted on the front end of the support member 103 by a pin 105a in a horizontal plane parallel to the surface of the card 110 to be inserted.
The card ejection member 107 is provided at the rear end of the support member 103 by a pin 107a.
It is mounted to be rotatable in a horizontal plane parallel to the surface 10.

The card pushing member 105 is formed with a pushing protrusion 105b which comes into contact with the front edge of the card 110 by the rotation of the card pushing member 105 when the card 110 is inserted and pushes the card 110 from the front to the rear. ing. The card ejection member 107 includes the card 1
A discharge step portion 107b is formed which comes into contact with the rear edge of the card 110 when the card 10 is inserted and discharges the card 110 from the rear to the front by rotating the card discharge member 107 when the card 110 is discharged.

Next, the operation of the card insertion / extraction mechanism 104 will be described. When inserting the card 110, as shown in FIG. 9 (A), the card pushing member 105 is opened clockwise around the pin 105a so that the front end thereof faces forward. In this state, the connecting rod 106 moves rearward, and with the movement of the connecting rod 106, the card discharging member 107 moves the discharging step 1 at the tip thereof.
07b is rotated clockwise around the pin 107a so that it faces forward. In this state, the card 110 is advanced toward the housing 102 while being guided by the support member 103 from the front side of the support member 103, and pushed until the trailing edge of the card 110 contacts the discharge step 107 b of the card discharge member 107. Put in.

Next, as shown in FIG. 9B, when the card pushing member 105 is rotated counterclockwise around the pin 105a and closed, the pushing protrusion 105b contacts the front edge of the card 110 and From the front to the back. As a result, the pads 111 of the card 110 come into contact with the contacts of the card connector 101, and the card 11
The operation of inserting 0 is completed. When the card 110 is inserted, the rotation of the card pushing member 105 causes the card 1 to move.
Since the number of contacts is 10, the card 110 can be easily inserted even if the number of contacts is more than 100. And card 11
0 is inserted, the card ejection member 107 abutting on the trailing edge of the card 110 rotates counterclockwise around the pin 107a, while the card pushing member 105 moves the pin 1
Since it is rotating counterclockwise around 05a, the connecting rod 106 moves forward.

When the card 110 is pulled out, FIG.
From the state shown in FIG. 9B, the card pushing member 105 is opened by rotating clockwise around the pin 105a as shown in FIG. Then, the connecting rod 106 moves rearward, and with the movement of the connecting rod 106, the card discharging member 107 rotates clockwise about the pin 107a so that the discharging step 107b at the tip thereof faces forward. I do. As a result, the ejection step portion 107b of the card ejection member 107 ejects the card 110 from the rear to the front, and the card 110
The contact state of the pad 111 with the contact is released.
At this time, since the card 110 is ejected by rotating the card ejection member 107, the card 110 can be easily ejected even if the number of contacts is more than 100. . Then, the card 110 ejected from the card connector 101 is pulled out along the support member 103, so that the card 110 is pulled out.
Is completed.

[0009]

However, the conventional card connector 101 has the following problems. That is, the card pushing member 105 is
3 is attached by a pin 105a at a front end thereof so as to be rotatable in a horizontal plane parallel to the surface of the inserted card 110. For this reason, when the card connector 101 is mounted on the circuit board so that the card 110 and the circuit board are parallel to each other, other electronic components are placed on the circuit board within the rotation range of the card pushing member 105 operated by the handle. Mounting space cannot be provided. Therefore, by providing the card connector 101 with the card insertion / removal boosting mechanism 104, the mounting area of the electronic components on the circuit board is extremely reduced, and it is not possible to achieve high-density mounting of the electronic components.

Accordingly, the present invention has been made in view of the above-described problems, and has as its object to reduce the mounting area of electronic components on a circuit board on which a connector is mounted, which is reduced by a card insertion / removal boosting mechanism. An object of the present invention is to provide a card connector capable of achieving high-density mounting of electronic components by minimizing the size of the electronic component.

[0011]

According to a first aspect of the present invention, there is provided a card connector mounted on a circuit board and receiving a card, and mounted on the housing. A card insertion / extraction booster mechanism for inserting the card into the housing and pulling the card out of the housing, wherein the card insertion / extraction booster mechanism extends substantially parallel to the surface of the circuit board. A rail member attached to the housing;
A slider member slidably mounted on the rail member and carrying the card; and a lever member rotatably mounted on the rail member so as to rotate in a direction perpendicular to the surface of the circuit board. And a link member connecting the lever member and the slider member.

According to a second aspect of the present invention, in the card connector according to the first aspect, the rail members are attached to both ends in the longitudinal direction of the housing, and the slider members are slid on the respective rail members. Movably mounted, the lever member comprises an operating portion extending in the longitudinal direction of the housing, and a pair of mounting portions extending from both ends of the operating portion and rotatably mounted on the rail member, respectively. Wherein the attachment portion and the slider member are connected by the link member.

[0013]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a plan view of the card connector according to the present invention in a state where a lever member is opened. FIG. 2 is a left side view of the card connector shown in FIG. FIG. 3 is a rear view of the card connector shown in FIG.
FIG. 4 is a sectional view taken along line 4-4 in FIG. FIG. 5 is a plan view showing a state where the lever member is closed in the card connector according to the present invention. FIG. 6 is a left side view of the card connector shown in FIG. FIG. 7 is a rear view of the card connector shown in FIG. However, FIGS. 2, 4, and 6
2 also shows a circuit board.

Referring to FIGS. 1 to 4, a card connector 1 is shown.
A housing 10 mounted on a circuit board PCB;
And a plurality of contacts 20 attached to the housing 10. Here, the housing 10 is a substantially rectangular insulating member extending in the longitudinal direction (horizontal direction in FIG. 1), and has a card receiving recess 11 which is open at the front (upper surface in FIG. 1) at a substantially central portion in the vertical direction. Have. The rear end of the card C is inserted into the card receiving recess 11 from the front to the rear, and the card C inserted into the card receiving recess 11 can be pulled out from the rear to the front. Here, the card C is a substantially rectangular circuit board having electronic components (not shown) mounted on the upper surface and a plurality of contact pads (not shown) provided on the rear end as shown in FIG. And a notch C1 is formed on both side edges thereof. Further, at both ends in the longitudinal direction of the housing 10, a pair of rail press-fitting recesses 12A and 12B that open to the front face are formed.

The contacts 20 are mounted in two vertical rows at a predetermined pitch along the longitudinal direction of the housing 10.
It has a number of poles near 00 poles. Upper row of contacts 20
As shown in FIG. 4, each of the contacts 20 in the lower row and the lower row of contacts 20 are arranged vertically opposite to each other, and are in contact with each other so as to be sandwiched between the contact pads of the card C, and the conductive pads ( (Not shown). And each contact 2
0 is formed by punching a metal plate such as a copper alloy.

The housing 1 of the card connector 1
At 0, a card insertion / removal boosting mechanism 30 for inserting the card C into the card receiving recess 11 and pulling out the card C from the card receiving recess 11 is attached. Hereinafter, the configuration of the card insertion and removal boosting mechanism 30 will be described. As shown in FIGS. 1 to 3, the card insertion / removal booster mechanism 30 includes a pair of rail members 31A and 31B attached to both ends in the longitudinal direction of the housing 10, and the respective rail members 31A and 31B.
B, a pair of slider members 32A and 32B slidably mounted in the front-rear direction, a lever member 33, and a pair of link members 34A and 34B connecting the lever member 33 and the slider members 32A and 32B. It is configured.

The rail members 31A and 31B are formed in a symmetrical shape and are substantially flat members formed by punching and bending a metal plate, and extend parallel to the surface of the circuit board PCB. Are press-fitted into the rail press-fit recesses 12A and 12B of the housing 10.
Each of the rail members 31A and 31B is provided with the rail press-fit recess 12.
A, 12B, a press-fit plate portion 31a, and a press-fit portion 31
a, a guide plate portion 31b extending parallel to the surface of the circuit board PCB, a stopper plate portion 31c bent outward from an end of the guide plate portion 31b, and a guide plate portion 31b extending parallel to the guide plate portion 31b from the stopper plate portion 31c. And a mounting plate portion 31d extending therefrom. The inner and outer surfaces of the press-fit plate portion 31a, the guide plate portion 31b, and the mounting plate portion 31d extend in a direction orthogonal to the surface of the circuit board PCB. Also, the rail member 31
The lower surfaces of the mounting plate portions 31d of A and 31B are soldered on a circuit board PCB as best shown in FIGS.

The slider members 32A and 32B are also formed symmetrically. FIG. 8 shows the detailed structure of the right slider member 32A. Slider member 32
Since A and 32B are formed in a symmetrical shape, only the configuration of the right slider member 32A will be described, and description of the configuration of the left slider member 32B will be omitted. 1 and 8
As shown in the figure, the right slider member 32A has a base portion 32a having a through hole 32b for slidably receiving the guide plate portion 31b of the rail member 31A, extends inward from the base portion 32a, and has an upper surface on the card mounting surface 32d. Card loading section 32
c. A locking projection 32e extending from the base 32a is provided on the card mounting surface 32d. The locking projection 32e is provided so that the card C
When the card C is placed on 2d, it enters the notch C1 formed on the side edge of the card C and regulates the movement of the card C in the front-rear direction. For this reason, the slider member 32A carries the card C when the card C is placed on the card placement surface 32d. A stopper shoulder 32f facing forward is formed substantially at the center of the base 32a in the front-rear direction.
When the guide plate portion 31b of the rail member 31A is inserted into the through hole 32b of the slider member 32A, the stopper shoulder 32f comes into contact with the rear surface of the stopper plate portion 31c of the rail member 31A and moves forward of the slider member 32A. Restrict movement. The rearward movement of the slider member 32A is regulated by setting the position where the straight line connecting the flanged support pin 32g and the rivet 34a coincides with the straight line connecting the rivet 33c and the rivet 34a as the bottom dead center of the link member 34A. Obtained by: It may be achieved that the rear surface of the slider member 32 </ b> A contacts the front surface of the housing 10. Further, a link member 34A is provided on the outer surface of the base 32a.
Support pin 32 having one end rotatably supported at one end thereof
g is formed to protrude. The slider member 32A
Is formed by molding a synthetic resin.

Further, the lever member 33 is shown in FIGS.
As shown in FIG. 7, an operation portion 33a extending in the longitudinal direction of the housing 10 so as to straddle the card C, and mounting plate portions 31d extending from both ends of the operation portion 33a and attaching the rail members 31A and 31B.
And a pair of mounting portions 33b rotatably mounted by rivets 33c along the outer surface of the head. The lever member 33 is configured such that the mounting portion 33b is
By being rotatably mounted along the outer surface of the mounting plate portion 31d of A, 31B, it can rotate in a direction orthogonal to the surface of the circuit board PCB. The operation unit 33a
At a substantially central portion in the longitudinal direction, a grip portion 33d for rotating the lever member 33 is provided. Also, the lever member 3
3 is provided with a lever member 33 in FIGS.
As shown in FIG. 3, a plurality of locking projections 33e are provided which are locked by stopper projections 13 formed on the rear end surface of the housing 10 when the housing 10 is closed. The lever member 33 may be formed by punching and bending a metal plate, or may be formed by molding a synthetic resin.

The link members 34A and 34B are elongated flat plate members formed in a symmetrical shape. One end of each of the link members 34A, 34B is rotatably supported by the flanged support pins 32g of the slider members 31A, 31B, and the other end thereof extends along the inner surface of the mounting plate 33b of the lever member 33. And is rotatably supported by a rivet 34a. Note that the link members 34A, 34
B may be formed by stamping and bending a metal plate or by molding a synthetic resin.

In the booster mechanism 30 for inserting and removing a card having the above-described structure, as shown in FIG. 2, the stopper shoulders 32f of the slider members 32A and 32B are in contact with the rail members 31A and 31B when the lever member 33 is opened. Stopper plate part 3
The forward movement of the slider member 31B is restricted by contacting the rear surface of the lever 1c, and the forward rotation of the lever member 30 is restricted. At this time, the angle between the lever member 33 and the circuit board PCB is about 105 °, and the projected area of the lever member 33 on the circuit board PCB is small. Therefore, there is almost no influence on the mounting area of the electronic components on the circuit board PCB. The angle is about 105 °
The rail member 3 of the lever member 33 is not limited to
It can be changed as appropriate according to the mounting position in the front-rear direction on 1A, 31B. At this time, it is preferable to reduce the projected area of the lever member 33 on the circuit board PCB as much as possible.

On the other hand, when the lever member 33 is rotated backward from the open state shown in FIG. 2 to the closed state shown in FIG. 6, the slider member 3 is moved through the link members 34A and 34B.
2A and 32B slide rearward along the rail members 31A and 31B. Then, the locking projection 33e of the lever member 33
Is a stopper projection 1 formed on the rear end face of the housing 10.
3 to prevent the lever member 33 from rotating forward.

Next, a method for inserting and removing the card C will be described. To insert the card C into the card receiving recess 11 of the housing 100, first, as shown in FIGS. 1 to 3, with the lever member 33 opened, the card C is placed on the card mounting surface of the slider members 32A and 32B. Place on 32d. At this time, the locking projection 32e is inserted into the notch C1 of the card C. Next, the lever member 33
5 is rotated backward from the open state shown in FIG. 2 and closed as shown in FIGS.
On the stopper projection 13 of the housing 10. Then, the slider member 3 is connected via the link members 34A and 34B.
2A and 32B slide rearward along the rail members 31A and 31B, and with the sliding of the slider members 32A and 32B, the card C moves rearward via the locking projection 33e.
The rear end of the card C is the card receiving recess 1 of the housing 10.
1 is inserted. As a result, the contact pads of the card C are fitted and contacted between the contact portions 21 of the upper and lower rows of contacts 20, and the card C and the circuit board PCB are electrically interconnected. At this time, since the card C is inserted by the linear movement of the slider members 32A and 32B by the rotation operation of the lever member 33, the card C is easily inserted even if the number of the contacts 20 is close to 200. be able to.

On the other hand, in order to pull out the card C from the card receiving recess 11 of the housing 10, the lever member 33 is moved to the position shown in FIG.
Is rotated forward from the closed state shown in FIG. 2 to release the locked state of the locking projection 33e with the stopper projection 13, and the lever member 33 is further rotated to the open state shown in FIG. Then, the slider members 32A and 32B slide forward along the rail members 31A and 31B via the link members 34A and 34B, and the card slides through the locking projection 33e with the sliding of the slider members 32A and 32B. C moves forward, and the rear end of the card C is ejected from the card receiving recess 11 of the housing 10. Thereby, the contact state between the contact pad of the card C and the contact portion 21 of the contact 20 is released. At this time, the card C is moved by the linear movement of the slider members 32A and 32B by the rotation operation of the lever member 33.
Is discharged, so that even if the number of contacts 20 is 200
The card C can be easily ejected even when it is very close.

Since the lever member 33 rotates in the direction orthogonal to the surface of the circuit board PCB in the above-described operation of inserting and removing the card C, the rotation of the lever member 33 does not affect the circuit board PCB. In addition, the mounting area of the electronic components on the circuit board PCB reduced by the card insertion / removal booster 30 can be minimized. Therefore, high-density mounting of electronic components can be achieved.

The card C is inserted and removed by a pair of slider members 32A and 32B which slide on rail members 31A and 31B attached to both ends of the housing 10 in the longitudinal direction. More stable insertion / extraction can be achieved than providing a card insertion / extraction mechanism only on one end side. Further, the lever member 33 is connected to the housing 1.
0 and a pair of mounting portions 33b extending from both ends of the operating portion 33a and rotatably mounted on the rail members 31A and 31B. The mounting portion 33b and the slider member are provided. Since the link members 32A and 32B are connected by the link members 34A and 34B, the sliding operation of the pair of slider members 32A and 32B can be synchronized, and the card C can be inserted and removed more stably.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made. For example, rail members, slider members,
The link members are not limited to being provided at both ends in the longitudinal direction of the housing 10, but may be provided only at one end in the longitudinal direction of the housing 10 as necessary.

[0028]

As described above, according to the card connector of the first aspect of the present invention, the card insertion / removal boosting mechanism is attached to the housing so as to extend parallel to the surface of the circuit board. Rail member, a slider member slidably mounted on the rail member and carrying the card, and a lever rotatably mounted on the rail member so as to rotate in a direction perpendicular to the surface of the circuit board. Since it is composed of a member and a link member connecting the lever member and the slider member, there is no influence on the circuit board due to the rotation of the lever member, and the circuit board is reduced by the card insertion / removal boosting mechanism. The mounting area of the electronic component can be minimized. Therefore, high-density mounting of electronic components can be achieved.

According to the card connector of the present invention, the rail member is attached to both ends in the longitudinal direction of the housing, and the slider member is attached to each of the rail members. The card is inserted and removed by a pair of slider members sliding on rail members attached to both ends in the longitudinal direction of the housing, and the card is inserted and removed only on one end in the longitudinal direction of the housing. More stable insertion and removal can be performed than when a power booster mechanism is provided. The lever member includes an operating portion extending in a longitudinal direction of the housing, and a pair of mounting portions extending from both ends of the operating portion and rotatably mounted on the rail member. Since the portion and the slider member are connected by the link member, the sliding operation of the pair of slider members can be synchronized, and more stable insertion and removal of the card can be performed.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state in which a lever member is opened in a card connector according to the present invention.

FIG. 2 is a left side view of the card connector shown in FIG.

FIG. 3 is a rear view of the card connector in the state shown in FIG. 1;

FIG. 4 is a sectional view taken along line 4-4 in FIG. 1;

FIG. 5 is a plan view showing a state where a lever member is closed in the card connector according to the present invention.

FIG. 6 is a left side view of the card connector in the state shown in FIG. 5;

FIG. 7 is a rear view of the card connector in the state shown in FIG. 5;

8 shows a right slider member in FIG. 1;
(A) is a plan view, (B) is a front view, (C) is a rear view,
(D) is a left side view.

9A and 9B show a conventional card connector, in which FIG. 9A is a partial plan view in a state where a card pushing member is opened, and FIG. 9B is a partial plan view in a state where the card pushing member is closed.

[Explanation of symbols]

 1 Card Connector 10 Housing 30 Card Insertion / Extraction Boost Mechanism 31A, 31B Rail Member 32A, 32B Slider Member 33 Lever Member 33a Operation Unit 33b Mounting Unit 34A, 34B Link Member C Card PCB Circuit Board

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 5B058 CA02 CA13 KA24 YA20 5E021 FA05 FB05 FB18 FC08 FC09 FC25 FC31 FC33 HA05 HA07 HB03 HB07 HB17 HC17 HC36 KA06 KA15 5E023 AA04 AA16 AA21 BB19 CC23 CC26 DD11 DD18 GG19 DD19 GG10 HH08 HH19

Claims (2)

[Claims] 1. A housing mounted on a circuit board and receiving a card, and a card insertion / extraction booster mechanism mounted on the housing for inserting the card into and removing the card from the housing. The card insertion / removal booster mechanism includes a rail member attached to the housing so as to extend substantially parallel to the surface of the circuit board, and is slidably attached to the rail member and carries the card. A slider member, and a lever member rotatably attached to the rail member so as to rotate in a direction orthogonal to the surface of the circuit board,
A card connector comprising the lever member and a link member connecting the slider member. 2. The system according to claim 1, wherein said rail members are attached to both ends in a longitudinal direction of said housing, and said slider members are slidably attached to respective rail members.
An operating portion extending in the longitudinal direction of the housing, and a pair of mounting portions extending from both ends of the operating portion and rotatably mounted on the rail member, wherein the mounting portion and the slider member are respectively provided. The card connector according to claim 1, wherein the card connector is connected by the link member.