JP3236991B2 - Card connector with shield plate - Google Patents

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 interconnecting a card such as a PC card and a printed circuit board, and more particularly to a card with a shield plate mounted on a portable information communication device and shielded. Belonging to the connector.

[0002]

2. Description of the Related Art The prior art is disclosed in Japanese Patent Application Laid-Open No. 7-1662.
No. 67 discloses a PC card connector for strengthening a ground line.

[0003] This card connector is shown in Figs.
As shown in FIG. 1, a connector body 202 and a lever 203
, A plate 204, a ground plate 206 having a plurality of contacts 205 as a measure for strengthening the ground line, and a push button 212, which are mounted on a printed circuit board (not shown).

[0004] The plate 204 is a member provided for detaching the card 210 inserted into the slot of the connector main body 202 from the card connector 201, and moves in the left and right direction in FIG. Attached to the connector body 2
02 has a pair of cut-and-raised claws 204a to be hooked on the tip of the card 210 inserted in the slot of No. 02.

The plate 204 is provided with a rib 204 for preventing the ground plate 206 from bending and backing up to ensure the contact with the ground protrusion 211 of the card 210.
b is provided.

The ground plate 206 is connected to the connector body 202.
The outside is covered. The ground plate 206 is made up of the insulator of the connector body 202, the plate 204 and the lever 203.
A low profile connector is provided by being mounted between.

The card 210 has a card connector 213 at the tip as shown in FIG. The card connector 213 has a plurality of mating contacts connected to conductive contacts (not shown) provided in the connector body 201.

FIG. 10 shows a state in which two cards 210 are inserted into the card connector 201. When the push button 212 on the front side is pushed rightward,
A bar 213 integrated with the lie button 212 rotates the lever 203 counterclockwise about a rotation center 214. Then, the lever 203 is engaged with the engagement portion 21 between the lever 203 and the plate 204.
Since the plate 204 is pushed to the left via 5, the pair of cut and raised claws 204a of the plate 204 pushes the card 210 to the left to disengage it from the card connector 201. In order to release the card 10 on the back side from the slot of the connector body 202, the push button 212 on the back side is pushed rightward and the operation is performed in the same manner as described above.

In a card connector mounted on a printed circuit board, a metal shield plate (not shown) is provided on the connector main body 202, and relaying is performed to make the shield plate and the printed circuit board conductive. Some shields use components (not shown).

[0010]

However, in the card connector 201, if shielding is performed using a shield plate, the contact portion of the relay component increases, and characteristics such as impedance matching deteriorate. However, there is a problem that economic efficiency is deteriorated due to an increase in the number of parts and the number of assembly steps.

[0011] Further, when the relay component is not used, the grounding portion of the shield board to the printed circuit board extends to the outside of the connector, which increases the external dimensions and limits the mounting range of the printed circuit board. Problem.

Further, there is a problem that the man-hours such as screwing and fixing the shield plate to the ground portion of the printed circuit board and soldering work are required.

[0013] Therefore, an object of the present invention is to provide a connector for a card with a shield plate, which can provide a good shield property because the shield plate is directly conducted to the printed circuit board because no relay component is required. is there.

Further, since the arm portion is narrowed by the projecting portion of the frame portion and the printed circuit board, a shield in which the arm portion is firmly fixed to the printed circuit board at once by screwing the frame portion. An object of the present invention is to provide a card connector with a board.

Another object of the present invention is to provide a card connector with a shield plate capable of accurately positioning the arm portion by locking the arm portion and the frame portion.

Another object of the present invention is to provide a connector for a card with a shield plate which can reduce material costs and processing costs because no relay parts are required.

[0017]

According to the present invention, there is provided an insulator incorporating a conductive contact, and extends in a detaching direction from the insulator so as to connect a card to the contact and guides the card in a fitting direction. A frame, and an insulator and a detachment mechanism provided on the frame for detaching the card from a state where the card is connected to the contact, wherein the insulator has a first surface facing the substrate; A second surface opposite to the first frame surface; and a second frame surface opposite to the first frame surface, the frame having a second surface opposite to the first frame surface. And a shield plate with a shield plate attached to the second frame surface for connection to a grounding conductor provided on the substrate. The shield plate has an arm extending along an outer wall of the frame, and the arm wraps around the first frame surface and is located below the first frame surface. A card connector with a shield plate having an arm grounding portion connected to a conductor for use is obtained.

[0018]

According to the present invention, the board-side connector is mounted and fixed on the board. In this mounted state, the card is fitted into or disconnected from the card connector. In order to shield the card from external noise, the card connector has a shield plate provided on the frame so as to cover the upper surface of the card, and an arm portion and an arm ground portion are formed along the frame from both sides of the frame. I have.

The arm part goes around to the lower surface of the frame, the arm ground part is located at the protruding part, and the arm ground part is directly pressed against the printed circuit board by screwing or the like.

When the arm is assembled to the frame, the plurality of claws of the shield plate are inserted into the plurality of engagement grooves of the frame and fixed.

Thereafter, the arm is bent inwardly of the protruding portion by a jig or the like, and is turned around the first frame surface below the protruding portion of the frame.

A hole is provided in a protruding portion between the arm portion and the frame to prevent the arm ground portion from being placed at a predetermined position due to a metal spring back or the like when the arm portion is bent, Engagement projections are provided on the projections of the frame, and are engaged with each other and fixed by a simple method.

[0023]

1 to 6 show an embodiment of a connector for a card with a shield plate according to the present invention. In FIG. 1, the connector for a card with a shield plate is mounted on a printed circuit board. This shows a state before mounting.

Referring to FIGS. 1 to 6, the connector for a card with a shield plate is mounted on a board 1 such as a printed circuit board having a board side connector 2 fixed on one surface.
A substantially long-plate-shaped insulator 4 incorporating a plurality of conductive contacts 3 electrically connected to the circuit of the board 1 via the board-side connector 2, and a longitudinal direction of the insulator 4 for connecting the card 5 to the contacts 3 A pair of frames 14 extending from both end sides in the detaching direction (the direction of arrow A shown in FIG. 1) and connecting the card 5 to the contacts 3 while guiding the card 5 in the fitting direction (the direction of arrow B shown in FIG. 1);
The insulator 4 and a release mechanism provided on the frame 14 are provided so that the card 5 can be released from the state where the card 5 is connected to the contact 3.

The connector for a card with a shield plate shown in FIGS. 1 to 6 can connect two cards 5 by fitting them together. That is, as can be best understood from FIG. 2, two connectors each having the insulator 4 and the pair of frames 14
A contact 3 is incorporated in each of the three connectors.

In FIG. 2, an upper ground plate 6 is provided on the insulator 4 of the upper connector, and a lower ground plate 7 is provided on the insulator 4 of the lower connector.
Is provided. The upper ground plate 6 and the lower ground plate 7 are connected to a ground conductor (not shown) of the substrate 1. In addition, for each of the upper and lower connectors,
A release mechanism including the ejector 15, the movable plate 17, and the lever 17 is provided. Card 5
A card having substantially the same shape as the card 210 shown in FIG. 11 is used.

The following description will be made with reference to the reference numerals based on the configuration in a state where the two connectors are integrally formed.

The insulator 4 has a first surface 4a facing the substrate 1 and a second surface 4b opposite to the first surface 4a. The frame 14 has a first frame surface 14a facing the substrate 1 and a second frame surface 14b opposite to the first frame surface 14a.

The release mechanism is provided with an ejector 15 mounted on the outside of the frame 14 so as to be movable in the fitting / removing direction along one frame 14 of the pair of frames 14, and movable in the fitting / removing directions A and B. The movable plate 17 attached to the first surface 4a, the first surface 14a and the movable plate 1
And a lever 21 having one end engaged with the tip end of the ejector 15 in the fitting direction B, the intermediate portion pivotally supported on the first surface 4a, and the other end engaged with the movable plate 17. are doing.

The ejector 15 has an eject button 15a provided on the distal end side in the detaching direction A, and an eject bar 15b attached to the outside of the frame 14 so as to be movable along the one frame 14 in the fitting / removing direction. ing.

In this card connector, when the eject button 15a is pushed in the fitting direction B, the eject bar 15
b also moves in the fitting direction B, and further rotates the lever 21 in a predetermined direction (counterclockwise in FIG. 2). At this time, since the movable plate 17 slightly moves in the detaching direction A, the leading end face of the card 5 is pushed in the detaching direction A by the cutting and raising claw 17a formed on the movable plate 17, and the contact 3 and the mating contact of the card 5 are contacted. The connection state (not shown) is changed to the non-connection state and the connection is released.

Further, the card 5 is fitted into a frame groove 14a formed inside
Is inserted into the insulator 4 and fitted to the insulator 4, the cutting and raising claws 17 a of the movable plate 17 are pushed in the fitting direction B, and
Is rotated in the direction opposite to the predetermined direction (clockwise in FIG. 2). With this operation, the ejector 15 is slightly moved in the detaching direction A, so that the card 5 can be detached by pushing the eject button 15 in the fitting direction B when detaching the card 5.

The frame 14 has a second frame surface 14b which is connected to the conductive grounding conductor 23 on the substrate 1.
Has a shield plate 31 attached to the base plate. The shield plate 31 has an arm portion 51 extending along the outer wall of the frame 14, as shown in FIG. The arm portion 51 has an arm grounding portion 61 which goes around the first frame surface 14a and is connected to the grounding conductor 23 located below the first frame surface 14a.

The frame 14 has a projecting portion 91 projecting outward from the outer wall. The arm grounding portion 23 is connected to the first frame surface 14a on which the protrusion 91 is located.
The protrusion 91 is provided with a nut 95 for fixing the frame 14 to the substrate 1 with bolts. It should be noted that the bolts and nuts are used for fixing, but the present invention is not limited thereto, and a tightening component that can be screwed and fixed to the hole 23a of the grounding conductor 23 can be used.

Further, as shown in FIG.
On the first and first frame surfaces 14a, the arm portion 51 is turned around to the first frame surface 14a and the first frame surface 14a.
After being bent so as to be connected to the grounding conductor 23 located below “a”, it has an engaging hole 100 and an engaging projection 101 which engage with each other. The engagement hole 100 and the engagement protrusion 101 include an arm grounding portion 61 and a first frame surface 14.
It suffices to provide any of them so that they are engaged in a.

Further, as shown in FIGS. 8 and 9, the shield plate 31 connects the arm grounding portion 23 to the first frame surface 14.
The arm connecting portion 51a extends parallel to the surface of the shield plate 31 before being turned around to a.

The operation for mounting the card connector with the shield plate on the printed circuit board will be described below.

A board-side connector 2 is mounted and fixed on the board 1. In this mounting state, the phase card 5 is fitted to or detached from the card connector. In the card connector, a shield plate 31 is provided on the frame 14 so as to cover the upper surface of the card 5 in order to shield the card 5 from external noise, and an arm portion 51 and an arm grounding portion are provided along the frame 14 from both sides of the frame 14. 61 are formed.

The arm portion 51 goes around the lower surface of the frame, and the arm grounding portion 61 is positioned at the projecting portion 91. The arm grounding portion 61 is directly pressed against the substrate 1 by screwing or the like.

The arm 51 has a substantially L-shape.
When assembled to the frame 14, the plurality of claws 107 of the shield plate 3 are inserted and fixed to the plurality of engagement grooves 108 of the frame 14. Thereafter, the arm portion 51 is bent inwardly of the projecting portion 91 by a jig or the like, and is turned around the first frame surface 4a below the projecting portion of the frame 14. A hole is formed in the projecting portion 91 between the arm portion 51 and the frame 14 to prevent the arm grounding portion 61 from being placed at a predetermined position due to a metal spring back or the like when the arm portion 51 is bent. 100 are provided, and an engaging projection 101 is provided on the projecting portion 91 of the frame 14 to engage and fix each other.

[0041]

As described above, according to the embodiment of the present invention, according to the connector for a card with a shield plate of the present invention, when the shield plate is conducted to the printed circuit board, no relay component is required, and the shield is directly provided. Since the board is electrically connected to the printed circuit board, material costs and processing costs can be reduced, and good shielding properties can be obtained.

Also, since the arm portion is narrowed by the projecting portion of the frame and the printed circuit board, the arm portion is firmly fixed to the substrate by screwing the frame at once, so that a shield excellent in workability is provided. A card connector with a board can be provided.

Further, the arm can be accurately positioned by engaging the arm with the frame.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a card connector with a shield plate of the present invention and showing a state before the connector for a card with a shield plate is mounted on a substrate.

FIG. 2 is an exploded perspective view of the connector for a card with a shield plate shown in FIG. 1;

FIG. 3 is a plan view of the connector for a card with a shield plate shown in FIG. 1;

4 is a left side view of the connector for a card with a shield plate shown in FIG. 3;

FIG. 5 is a partial side view of the card connector with a shield plate shown in FIG. 1 as viewed from the direction of arrow B.

FIG. 6 is a sectional view taken along line VI-VI of the connector for a card with a shield plate shown in FIG. 3;

FIG. 7 is a perspective view showing a shield plate of the connector for a card with a shield plate shown in FIG. 1;

8 is a perspective view showing a state before bending an arm portion of the shield plate shown in FIG. 7;

9 is a cross-sectional view showing a state in which the shield plate shown in FIG. 8 is provided in the card connector with a shield plate shown in FIG.

FIG. 10 is a plan view showing a conventional card connector.

FIG. 11 is a perspective view showing the card shown in FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 board 2 board side connector 3 contact 4 insulator 4a 1st surface 4b 2nd surface 14 frame 14a 1st frame surface 14b 2nd frame surface 15 ejector 17 movable plate 21 lever 23 grounding conductor 31 shield plate 51 arm Part 91 Projection 100 Engagement hole 101 Engagement projection 107 Claw 108 Groove

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 13/648 H01R 24/08

Claims (5)

(57) [Claims] 1. An insulator incorporating a conductive contact, a frame extending in a detaching direction from the insulator so as to connect a card to the contact and guiding the card in a fitting direction, and the card is connected to the contact. An insulator and a detachment mechanism provided on the frame so as to be detached from a state in which the insulator is disengaged. The insulator has a first surface facing the substrate and a second surface opposite to the first surface. A first frame surface facing the substrate, and a second frame surface opposite to the first frame surface, the frame being provided on the substrate. A card connector with a shield plate having a shield plate attached to the second frame surface for connection to a grounding conductor, The arm has an arm extending along an outer wall of the frame, the arm extending around the first frame surface and connecting to the grounding conductor located below the first frame surface. A card connector with a shield plate, comprising a grounding portion. 2. The connector for a card with a shield plate according to claim 1, wherein the frame has a projecting portion projecting outward from the outer wall, and the arm grounding portion is located on the first frame surface. And a component for fixing the frame to the substrate 1 provided on the projecting portion. 3. The connector for a card with a shield plate according to claim 1, wherein the shield plate extends in parallel with the shield plate surface before the arm ground portion goes around the first frame surface. A connector for a card with a shield plate, comprising a connecting portion. 4. The connector for a card with a shield plate according to claim 1, wherein the arm portion is turned around to the first frame surface at the arm ground portion and the first frame surface. A card connector with a shield plate, characterized in that it has an engaging hole and an engaging projection which engage with each other after being bent so as to be connected to the grounding conductor located at the position (1). 5. The connector for a card with a shield plate according to claim 1, wherein the shield plate has a plurality of claw portions bent to the second frame surface at a portion corresponding to the second frame surface. A card connector with a shield plate, wherein the connector enters a plurality of grooves provided on the second frame surface and the shield plate is fixed to the frame.