JPH11296637A - Cover locking structure for card connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve assemblability at the time of locking a cover plate to a frame. SOLUTION: A first cover plate 4 and a second cover plate 5 are put on the frame 3 from upper and lower parts. At the time of fitting the first cover plate 4 to the frame 3, a tongue piece 4d pushed and spread by a frame projection part 32 positioned at a pawl housing part 31 is pushed and abutted on a tongue piece fixing part 33 and the first cover plate 4 is locked double by a cover notched part and the frame projection part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card connector cover locking structure for covering and locking a board and a connector held by a frame with a cover.

[0002]

2. Description of the Related Art As shown in FIG. 7, a conventional card connector includes a board 102 such as a printed circuit board on which electronic components are mounted, a connector 101 provided at one end of the board 102, and a substantially co-mounted connector. A frame 103 shaped like a letter,
An upper cover plate 104 and a lower cover plate 105 that cover the frame 103 from above and below are provided. The frame 103 is formed with a pair of groove portions 103a that engage one-to-one with each of a pair of protrusions 101a provided on both longitudinal end surfaces of the connector 101.

The upper cover plate 104 is bent at right angles to the upper cover main plate portion 104a from an upper cover main plate portion 104a having a substantially rectangular shape and both edges perpendicular to the longitudinal direction of the upper cover main plate portion 104a. And a plurality of cover claws 104b. The lower cover plate 105
A lower cover main plate portion 105a having a substantially rectangular shape, and a plurality of lower cover plate portions 105b bent at right angles to the lower cover main plate portion 105a from both edges perpendicular to the longitudinal direction of the lower cover main plate portion 105a. Have.

[0004] The card connector 100 has a connector 10
1 is fitted into the groove 103a, and the substrate 102 is
The upper cover plate 104 and the lower cover plate 105 are placed from above and below and are bonded by thermocompression bonding or the like.

The time for thermocompression depends on the adhesive or double-sided tape applied to the upper cover plate 104 and the lower cover plate 105, but there is a cooling step after thermocompression.

[0006]

However, in the conventional card connector assembly, there is a problem that many steps and time are required for assembling because there is a cooling step after thermocompression bonding.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to facilitate assembling when assembling a cover plate to a frame, and to shorten the assembling time by locking the frame and the cover plate by mechanical fitting. It is an object of the present invention to provide a card connector cover locking structure that can be achieved.

Another object of the present invention is to provide a cover locking structure of a card connector which can obtain sufficient rigidity by adopting a double locking structure.

[0009]

According to the present invention, a frame for holding a connector and a board, and a first cover plate and a second cover plate for covering the connector and the board so as to sandwich the frame are provided. The first cover plate has a first cover main plate portion and a plurality of cover claw plate portions bent from both edges of the first cover main plate portion. The claw plate portion has a cover cutout portion formed by cutting out the cover claw plate portion, and a tongue piece having a spring force extending from a lower edge of the cover notch portion to the cover main plate portion side, The frame has a claw receiving portion formed at a position facing the cover claw plate portion,
The claw receiving portion has a frame protrusion formed to protrude on one of a pair of wall surfaces facing each other, and protrudes on the other wall surface of the claw receiving portion on the upper surface side of the frame. A tongue fixing portion formed as described above, and a frame locking projection formed on the lower surface side of the frame and projecting to the one wall surface on both sides of the frame projection,
When the first cover plate is fitted into the claw accommodating portion, the tongue piece expanded by the frame projection located in the claw accommodating portion hits the tongue piece fixing portion, and the cover is cut off. A cover locking structure for a card connector is obtained, wherein the first cover plate is locked by the notch and the frame locking projection.

According to the present invention, there is provided a card connector including a frame for holding a connector and a board, and a first cover plate and a second cover plate which engage with the frame and cover the connector and the board. The first cover plate includes a first cover main plate portion, and a plurality of first cover claw plate portions bent from both edges of the first cover main plate portion. A cover notch portion formed by notching the first cover claw plate portion, and a tongue piece extending from a lower edge of the cover notch portion to the first cover main plate portion side. The frame has a claw receiving portion formed at a position facing the first cover claw plate portion, and the second cover plate has a second cover main plate portion and the second cover main plate portion. A plurality of second covers bent from both edges of the cover main plate portion A second cover claw plate portion, wherein the second cover claw plate portion is inserted in opposition to one of a pair of wall surfaces facing each other in the claw accommodating portion, and pushes the tongue piece open. A projection, and a pair of cover locking projections formed on both sides of the cover projection. The claw receiving portion faces the tip of the tongue piece of the pair of wall surfaces facing each other. It has a tongue fixing portion formed so as to protrude from the wall surface, and the tongue pushed out by the projection hits the tongue fixing portion, and is formed by the cover notch and the cover locking projection. A cover locking structure for a card connector, wherein the first and second cover plates are locked.

[0011]

In the cover locking structure of the card connector according to the present invention, when the upper cover plate is fitted into the frame, the tongue piece pushed and spread by the projection located at the claw accommodating portion hits the tongue piece fixing portion. Further, the upper cover plate is doubly locked by the cover notch and the frame protrusion.

Further, in the cover locking structure of the card connector according to the present invention, the tongue piece expanded by the projection hits the tongue piece fixing portion. Further, the cover is doubly locked by the cover notch and the cover projection.

[0013]

1 to 3 show a first embodiment of a cover locking structure for a card connector according to the present invention. First, referring to FIG. 1, a card connector according to a first embodiment includes a board 2 such as a printed circuit board on which electronic components are mounted, and a connector 1 provided at one end of the board 2. , A substantially U-shaped frame 3 for positioning and holding the board 2 and the connector 1 and an upper cover plate 4 and a lower cover plate 5 for covering the connector 1 and the frame 3 from above and below. .

A pair of grooves 3a are formed at the open end of the frame 3 so as to engage one-to-one with each of a pair of connector protrusions 1a provided on both longitudinal end surfaces of the connector 1. Have been.

The upper cover plate 4 is bent substantially at right angles to the upper cover main plate portion 4a from an upper cover main plate portion 4a having a substantially rectangular shape and both edges perpendicular to the longitudinal direction of the upper cover main plate portion 4a. And a plurality of cover claws 4b.

The lower cover plate 5 is bent at a right angle to the lower cover main plate portion 5a from a substantially rectangular lower cover main plate portion 5a and both edges perpendicular to the longitudinal direction of the lower cover main plate portion 5a. And a lower cover plate 5b.

The connector 1 includes a plurality of conductive contacts 1
1 and an insulator 12 holding these contacts 11. A contact portion (not shown) of the contact 11 contacts a mating contact of the mating connector. The terminal 11 a of the contact 11 is connected to a circuit on the substrate 2.

The frame 3 is a part that forms a whole frame, and includes a pair of groove portions 3a that engage one-to-one with a pair of connector protrusions 1a provided on both end surfaces in the longitudinal direction of the connector 1, respectively. As shown in FIG. 3, the frame 3 has a plurality of claw receiving portions 31 formed at upper surface positions of the frame 3 facing the cover claw plate portion 4b. The nail accommodating portion 31 is a hole penetrating from the upper surface to the lower surface of the frame 3 or a groove extending from the upper surface of the frame 3.

An upper cover plate 4 is provided on the upper surface of the frame 3, and a cover claw plate portion 4b is inserted into the claw accommodating portion 31 on the upper surface of the frame 3. The nail accommodating portions 31 are provided at a plurality of locations on the upper surface of the frame 3 corresponding to the number of the cover nail plate portions 4b. The nail accommodating portions 31 may be continuous without being provided at a plurality of locations.

Further, referring to FIGS. 2 and 3, the cover claw plate portion 4b has a cover notch portion 4c formed by punching the plate, and a cover notch portion 4c from a lower edge thereof. And a tongue piece 4d having a spring force and extending toward the cover main plate portion 4a.

The claw accommodating portion 31 has a frame protrusion 32 formed so as to protrude from an intermediate portion of one wall surface 31a of a pair of wall surfaces 31a and 31b facing each other.
A tongue fixing portion 33 formed so as to protrude above the other wall surface 31b of the claw accommodating portion 31, and a pair of locking protrusions formed so as to protrude to one wall surface 31a on both sides of the frame protrusion 32. And a part 34. The frame protrusion 32 is
The projection protrudes largely toward the other wall surface 31 b from the locking projection 34. In addition, the pair of locking projections 34 is
2 extends from both sides.

Next, the assembly of the card connector will be described. First, the connector protrusion 1a of the connector 1 is inserted into the groove 3a.
And the substrate 2 is positioned in the frame 3. Then, the upper cover plate 4 and the lower cover plate 5 are covered from above and below.
When the upper cover plate 4 is fitted into the frame 3,
The tongue piece 4 d pushed and spread by the frame projection 32 located at 1 is pushed in the direction of arrow B in FIG. 2 and hits the tongue piece fixing portion 33. By this action, the tongue piece 4d ensures pressing and fixing.

In the upper cover plate 4, the cover notch 4c and the locking projection 34 are locked double. Further, the lower cover plate 5 is fixed to the frame 3 using an adhesive or a double-sided tape. The lower cover plate 5 is a resin frame 3
May be integrally molded.

FIGS. 4 to 6 show a second embodiment of the cover locking structure of the card connector according to the present invention.
In this embodiment, the connector 1, the board 2
The upper cover plate 4 is the same as that described in the first embodiment, and a description thereof will be omitted.

Referring to FIGS. 4 to 6, lower cover plate 5
Are a plurality of lower cover claw plate portions which are inserted in opposition to one wall surface 31a of a pair of wall surfaces 31a and 31b facing each other in a claw housing portion 31 penetrating from the upper surface to the lower surface of the frame 3. 51. The lower cover plate 5 is bent at right angles to the lower cover main plate portion 5a from a substantially rectangular lower cover main plate portion 5a and both edges perpendicular to the longitudinal direction of the lower cover main plate portion 5a. Further, the lower cover claw plate portion 51 is provided with a cover protrusion 5 for pushing and spreading the tongue piece 4d.
4 and a pair of cover locking projections 55 formed on both sides of the cover projection 54.

The nail accommodating portion 31 has a tongue piece fixing portion 33 formed so as to protrude above the other wall surface 31b so as to face the tip of the tongue piece 42 of the pair of wall surfaces facing each other. Have.

Next, the assembly of the card connector will be described. First, the connector protrusion 1a of the connector 1 is inserted into the groove 3a.
And the substrate 2 is positioned in the frame 3. Then, the upper cover plate 4 and the lower cover plate 5 are put on the frame 3 from above and below. At this time, first, the lower cover claw plate portion 51 is inserted along one wall surface 31a such that the cover claw portion 4b is on the inside. Then, the cover claw plate portion 4b of the upper cover plate 4 is provided in the claw accommodating portion 31.
Insert At this time, the tongue piece 42 expanded by the cover projection 54 is pushed in the direction of arrow B in FIG. 5 and hits the tongue piece fixing portion 33. The upper and lower cover plates 4 and 5 are doubly locked between the cover notch 4c and the cover locking projection 55.

[0028]

As described above, according to the embodiment, in the cover locking structure of the card connector of the present invention,
When the cover plate is assembled to the frame, the cover plate can be assembled without using an adhesive or a double-sided tape, so that the assemblability can be improved.

Further, in the cover locking structure of the card connector of the present invention, the frame and the cover plate are locked by mechanical fitting, and there is no thermocompression bonding step or cooling step, so that the time for cover assembly can be shortened. Thus, the assemblability can be improved.

Further, in the card connector cover locking structure of the present invention, since the double locking structure is employed, sufficient rigidity of the card connector can be obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a cover locking structure of a card connector of the present invention.

FIG. 2 is a cross-sectional view showing a main part of the card connector cover locking structure shown in FIG. 1 in an assembled state.

FIG. 3 is a perspective view of a state viewed from a line AA in FIG. 2;

FIG. 4 is an exploded perspective view showing a second embodiment of the cover locking structure of the card connector of the present invention.

5 is a cross-sectional view showing a main part of the cover locking structure of the card connector shown in FIG. 4 in an assembled state.

FIG. 6 is a perspective view of a state viewed from the line AA of FIG. 5;

FIG. 7 is an exploded perspective view showing a conventional card connector cover locking structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 101 Connector 2, 102 Board 3, 103 Frame 4, 104 Upper cover plate 4b Cover claw portion 4c Cover cutout portion 4d Tongue piece 5,105 Lower cover plate 5b Lower cover plate portion 31 Claw receiving portions 31a, 31b Wall surface 32 Frame projection 34 Locking projection 51 Lower cover claw plate 54 Cover projection 55 Cover locking projection

Claims (2)

[Claims] 1. A card connector comprising: a frame for holding a connector and a substrate; and a first cover plate and a second cover plate for covering the connector and the substrate so as to sandwich the frame. The plate includes a first cover main plate portion and the first cover main plate portion.
A plurality of cover claw plate portions bent from both edges of the cover main plate portion, the cover claw plate portion being formed by notching the cover claw plate portion, and a cover notch portion; A tongue piece having a spring force extending from a lower edge of the cutout portion to the cover main plate portion side, wherein the frame has a claw accommodating portion formed at a position facing the cover claw plate portion; The claw accommodating portion has a frame protrusion formed to protrude from one of a pair of wall surfaces facing each other, and a claw accommodating portion protruding on the other wall surface on the upper surface side of the frame. And a frame locking projection formed on the lower surface side of the frame and on one side of the frame projection on both sides of the frame projection, wherein the first cover plate When fitting into the nail accommodating portion, The tongue piece pushed and spread by the frame projection hits the tongue piece fixing portion, and the first cover plate is locked by the cover notch and the frame locking projection. Cover structure of the card connector. 2. A card connector comprising: a frame for holding a connector and a board; and a first cover plate and a second cover plate that engage with the frame and cover the connector and the board, wherein the first cover The plate includes a first cover main plate portion and the first cover main plate portion.
And a plurality of first cover claw plate portions bent from both edges of the cover main plate portion, and the first cover claw plate portion is formed by cutting out the first cover claw plate portion. From the lower edge of the cover notch,
The frame has a claw accommodating portion formed at a position facing the first cover claw plate portion, and the second cover plate has a tongue piece extending to the cover main plate portion side. 2 and a second cover main plate,
And a plurality of second cover claw plate portions bent from both edges of the cover main plate portion, and the second cover claw plate portion has a pair of wall surfaces facing each other in the claw accommodating portion. A cover projection that is inserted opposite to one of the wall surfaces and pushes the tongue piece apart, and a pair of cover locking projections formed on both sides of the cover projection. Has a tongue piece fixing portion formed at the tip of the tongue piece of the pair of wall surfaces facing each other so as to protrude from the wall surface, and the tongue piece pushed and spread by the projection is the tongue. A cover locking structure for a card connector, wherein the first and second cover plates are locked by the cover notch and the cover locking projection while being in contact with a single fixing portion.