TWI596834B - Card connector - Google Patents

Description

Card connector

The present invention relates to a card connector.

In the conventional card connector for an electronic device such as a mobile phone or an information terminal device, one end portion of the connector terminal is fixed to the outer casing, and the other end portion of the connector terminal is supported by the outer casing (see, for example, Patent Document 1).

As shown in FIG. 5, the conventional card connector 101 described above includes a housing 110, a shield cover 120, and a contact terminal 130.

The cover 120 is attached to the outer casing 110, and is formed between the outer casing 110 and the shield cover 120 from the front side R side of the card medium insertion direction toward the front side F of the card medium insertion direction, and the SD card, the MMC card, and the like are not shown. The card medium accommodating portion 111 into which the card medium is inserted.

The outer casing 110 is formed of a resin material and has a plurality of opening windows 112 penetrating in the thickness direction of the member, and the contact terminals 130 are assembled in the respective opening windows 112. In the casing 110, a substrate (not shown) constituting a printed circuit board is mounted on the lower portion.

The contact terminal 130 is formed of a metal having excellent conductivity. The thin plate springs arranged in the direction in which the card medium is inserted are elastically deformed toward the thickness of the card medium.

The contact terminal 130, wherein one end portion is formed as a fixed end 131 fixed to the outer casing 110, and the other end portion is formed as a movable end 132 that allows displacement of the outer casing 110 toward the insertion direction of the card medium, and has an upward direction in the middle portion of the card medium insertion direction. The contact portion 133 is protruded into a convex curved shape.

The fixed end 131 of the contact terminal 130 is press-fitted into the groove portion 113 formed in the outer casing 110 so as to be located at one end side of the opening window 112. The movable end 132 of the contact terminal 130 enters the gap between the shoulder portion 114 and the bottom wall portion 115 which are formed in the outer casing 110 and are opposed to each other so as to be located at the other end portion of the opening window 112.

Further, when the contact portion 133 of the contact terminal 130 is inserted into the card medium accommodating portion 111 from the front side R side of the card medium insertion direction, the contact portion 133 of the contact terminal 130 contacts the pad portion (not shown) on the lower surface of the card medium.

The card connector 101, since the movable end 132 of the contact terminal 130 enters a gap between the shoulder 114 and the bottom wall portion 115 formed in the outer casing 110, when the card medium is inserted into the card medium containing portion 111, or when When the card medium accommodating portion 111 pulls out the card medium, the movable end 132 of the contact terminal 130 does not interfere with the card medium, and thus the contact terminal 130 is not damaged by bending or the like.

[prior technical literature] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2008-97947

In the above-described conventional card connector 101, since the movable end 132 of the contact terminal 130 is sandwiched in the up and down direction by the shoulder 114 and the bottom wall portion 115 formed in the outer casing 110, the movable end 132 of the contact terminal 130 is supported by the outer casing 110. The thickness of the portion becomes large, and it is difficult to make the card connector 101 thin.

Accordingly, the present invention has been made to solve the above problems, and an object thereof is to provide a card connector which can reduce the thickness of a portion where a contact terminal is supported by a casing, thereby achieving a reduction in thickness.

In order to achieve the above object, the card connector of the present invention has an outer casing formed with an opening window penetrating in a thickness direction, and a shroud cover covering a surface of the outer casing between the outer casing and the shroud cover. a card medium accommodating portion into which a card medium is inserted is formed, and a contact terminal that is arranged in a card medium insertion direction is assembled in the opening window, and a substrate having a conductor circuit electrically connected to the contact terminal is disposed to be adjacent to the opening window of the outer casing The contact terminal includes: a contact portion that is in contact with the card medium inserted in the card medium accommodating portion at an intermediate portion in the longitudinal direction, a base end portion that is fixed to the outer casing, and a front end portion; and the outer casing has: A protection portion that covers the front end portion of the contact terminal from the card medium accommodating portion side.

With this configuration, the card connector of the present invention supports the front end portion of the contact terminal by the substrate attached to the other surface of the casing. Therefore, the card connector of the present invention has a small thickness in a portion where the outer casing supports the contact terminal, and can be made thinner.

Further, in the card connector of the present invention, since the protective portion covers the front end portion of the contact terminal from the card medium accommodating portion side, when the card medium is inserted into the card medium accommodating portion, or when the card medium is removed from the card medium accommodating portion At this time, the card medium or the like does not interfere with the front end portion of the contact terminal. Therefore, the card connector of the present invention can prevent damage to the contact terminals.

In the card connector of the above configuration, the substrate has a metal foil portion, and the front end portion of the contact terminal is preferably in contact with the metal foil portion.

With this configuration, the card connector of the present invention prevents contact between the front end portion of the contact terminal and the substrate by the metal foil portion. Therefore, the card connector of the present invention can prevent the wear of the substrate.

In the card connector of the above configuration, the metal foil portion is preferably electrically connected to the contact terminal.

With this configuration, the card connector of the present invention utilizes the metal foil portion as a conductive circuit and can prevent the substrate from being worn out.

In the card connector of the above configuration, it is preferable that the casing has a concave portion that is recessed toward the card medium accommodating portion side on the front side of the front end portion of the contact terminal.

According to this configuration, in the card connector of the present invention, when the outer casing and the contact terminal are integrated by insert molding, the concave portion formed on the front side of the front end portion of the contact terminal prevents the resin material from being wound around the contact terminal. Front end. Therefore, the card connector of the present invention can prevent the front end portion of the contact terminal from coming into close contact with the resin material forming the outer casing without peeling off.

According to the present invention, it is desirable to provide a card connector in which the thickness of a portion of a casing that supports a contact terminal is reduced, and the thickness can be reduced.

1‧‧‧ card connector

10‧‧‧ Shell

14‧‧‧ Card Media Storage Department

16‧‧‧Open window

18‧‧‧Protection Department

19‧‧‧ recess

20‧‧‧ hood cover

40‧‧‧Contact terminal

41‧‧‧Contact Department

42‧‧‧ base end

43‧‧‧ front end

50‧‧‧Substrate

51‧‧‧Metal Foil Department

Fig. 1 is a perspective view of a card connector according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view taken along line A-A of the card connector shown in Fig. 1.

Fig. 3 is a perspective view showing the outer casing of the card connector of Fig. 1.

Fig. 4 is an enlarged cross-sectional view showing a protection portion of the card connector of the embodiment.

Fig. 5 is a longitudinal sectional view of a conventional card connector.

The card connector of the embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1 and FIG. 2, the card connector 1 of the present embodiment includes a resin case 10, a metal cover 20, and contact terminals 30 and 40.

As shown in FIGS. 2 and 3, the casing 10 has a card supporting portion 11 connected to the upper edge of the card supporting portion 11, and the card media. a side wall portion 12 extending toward the front F side of the card medium insertion direction on the front side R side in the insertion direction, and a side wall portion 13 extending in the same direction as the side wall portion 12, and a side wall portion 13 extending in the same direction as the side wall portion 12 of the card support portion 11; Between the two, a card medium accommodating portion 14 for inserting a card medium (not shown) is formed.

The casing 10 has a plurality of opening windows 15, 16 penetrating the thickness direction in the card supporting portion 11. The opening window 15 has three portions arranged on the front side R side of the card supporting portion 11 in the card medium insertion direction in the card medium width direction. The opening window 16 is arranged in the card medium insertion direction on the front side F side in the card medium insertion direction by three in the card medium width direction.

As shown in Fig. 1, the cover 20 has a card cover portion 21 partially covering the card medium accommodating portion 14 of the card support portion 11 from the upper side, and is connected to an edge portion of the card cover portion 21 and the card support portion. The outer casing engagement portion 22 that engages the side wall portion 12 of the eleventh, and the outer casing engagement portion 23 that is connected to the other edge portion of the card cover portion 21 and engages with the side wall portion 13 of the card support portion 11.

The cover 20 has a notch portion 24 at a portion on the front side R of the card cover portion 21 in the card insertion direction, and has a notch portion 25 at a portion on the front side F side of the card cover portion 21 in the card insertion direction.

As shown in Fig. 2, the contact terminal 30 is a thin plate spring formed of a metal having excellent conductivity, and is extended in the insertion direction of the card medium, and has a convexly curved connection toward the side of the cover 20 in the intermediate portion in the longitudinal direction. The dot portion 31 is assembled to the opening window 15 of the outer casing 10.

The base end portion 32 on the front side R of the contact terminal 30 in the card medium insertion direction is fixed to the card support portion 11. At the contact terminal 30 is located at the card medium The front end portion 33 on the front side F side of the body insertion direction is supported by the upper surface portion of the support portion 17, and the support portion 17 is formed so as to protrude toward the inner side of the opening window 15 at the card support portion 11.

As shown in Fig. 2, the contact terminal 40 is a thin plate spring made of a metal having excellent conductivity, and is extended in the insertion direction of the card medium, and has a convexly curved connection toward the side of the cover 20 in the intermediate portion in the longitudinal direction. The dot portion 41 is assembled to the opening window 16 of the outer casing 10.

The base end portion 42 on the front side R of the contact terminal 40 in the card medium insertion direction is fixed to the card support portion 11. The distal end portion 43 of the contact terminal 40 on the front side F side in the card medium insertion direction is covered from the card medium accommodating portion 14 side by the protective portion 18 formed in the card supporting portion 11.

As shown in FIG. 2, the card connector 1 of the present embodiment has a substrate 50 attached to the lower surface of the card support portion 11. The substrate 50 has a conductor circuit (not shown) that electrically connects the contact terminals 30 and 40, and a metal foil portion 51 that contacts the lower surface of the distal end portion 43 of the contact terminal 40.

As shown in FIG. 4, the card connector 1 of the present embodiment has a side in which the card support portion 11 is located on the front side F of the distal end portion 43 of the contact terminal 40 in the card medium insertion direction, and is formed to be recessed toward the card medium accommodating portion 14. Into the recess 19.

For example, when the card supporting portion 11 is formed by the insert molding method, a mold corresponding to the front end portion 43 and the recess portion 19 of the contact terminal 40 is disposed, and after the resin is injected, the mold corresponding to the concave portion 19 is removed, so that the fourth mold can be formed. The shape shown in the figure.

Next, the action of the card connector 1 of the present embodiment will be described.

In the card connector 1 of the present embodiment, when the card medium is inserted into the card medium accommodating portion 14, the pad portion of the card medium is brought into contact with the contact portion 31 of the contact terminal 30, and the contact portion 31 is pressed down to allow the contact terminal. 30 elastic deformation.

Further, when the card connector 1 of the present embodiment is inserted into the card medium accommodating portion 14, the pad portion of the card medium is brought into contact with the contact portion 41 of the contact terminal 40, and the contact portion 41 is pressed down to make contact. The lower surface portion of the front end portion 43 of the terminal 40 is in contact with the metal foil portion 51 of the substrate 50, and the contact terminal 40 is elastically deformed.

The card connector 1 of the present embodiment supports the distal end portion 43 of the contact terminal 40 by the substrate 50 attached to the lower surface portion of the card supporting portion 11 constituting the outer casing 10. Therefore, in the card connector 1 of the present embodiment, the thickness of the portion where the outer casing 10 supports the contact terminal 40 is reduced, and the thickness can be reduced.

In the card connector 1 of the present embodiment, the card support portion 11 is formed with a protection portion 18 that covers the distal end portion 43 of the contact terminal 40 from the card medium accommodation portion 14 side. When the card medium is inserted into the card medium accommodating portion 14 or the card medium accommodating portion 14 is pulled out, the card medium or the finger end of the operator does not interfere with the front end portion 43 of the contact terminal 40. . Therefore, the card connector 1 of the present embodiment can prevent damage such as bending or bending damage at the contact terminal 40.

The card connector 1 of the present embodiment is prevented from coming into contact with the substrate 50 by the tip end portion 43 of the contact terminal 40 by the metal foil portion 51 provided on the substrate 50. Therefore, the card connector 1 of the present embodiment can prevent the substrate 50 wear and tear.

In the card connector 1 of the present embodiment, the card supporting portion 11 constituting the casing 10 is provided with a recess 19 at a portion on the front side F of the front end portion 43 of the contact terminal 40 in the card insertion direction, so that it is formed by insert molding. When the outer casing 10 is integrated with the contact terminals 30 and 40, the mold disposed at the position of the concave portion 19 prevents the resin material from being wound around the front end portion 43 of the contact terminal 40. Therefore, the card connector 1 of the present embodiment can prevent the distal end portion 43 of the contact terminal 40 from coming into close contact with the resin material forming the outer casing 10 without being peeled off.

In the card connector 1 of the present embodiment, the distal end portion 43 of the contact terminal 40 extends in the direction in which the card medium is inserted, and the distal end portion 43 may extend in a direction orthogonal to the insertion direction of the card medium instead of the direction.

The technical scope of the card connector of the present invention is not limited to the above embodiment, and various modifications of various components described in the claims are included.

As described above, the card connector of the present invention can reduce the thickness of the portion where the contact terminal is supported by the outer casing, and can achieve a thinning effect, and can be used for various substrate assembly and the like.

1‧‧‧ card connector

10‧‧‧ Shell

11‧‧‧ Card Support

13‧‧‧ Sidewall

14‧‧‧ Card Media Storage Department

15‧‧‧Open window

16‧‧‧Open window

17‧‧‧Support

18‧‧‧Protection Department

19‧‧‧ recess

20‧‧‧ hood cover

21‧‧‧Card Covering Department

24‧‧‧Gap section

25‧‧‧Gap section

30‧‧‧Contact terminals

31‧‧‧Contact Department

32‧‧‧ base end

33‧‧‧ front end

40‧‧‧Contact terminal

41‧‧‧Contact Department

42‧‧‧ base end

43‧‧‧ front end

50‧‧‧Substrate

51‧‧‧Metal Foil Department

Claims (4)

A card connector having: an outer casing formed with an opening window penetrating in a thickness direction; and a shroud cover covering a surface of the outer casing; and between the outer casing and the shroud cover, a card medium is inserted a card medium accommodating portion in which a contact terminal arranged in a card medium insertion direction is assembled, and a substrate having a conductor circuit electrically connected to the contact terminal is disposed to face the opening window of the outer casing; The contact terminal includes: a contact portion that contacts the card medium inserted in the card medium accommodating portion at an intermediate portion in the longitudinal direction, a base end portion that is fixed to the case, and the card medium is inserted into the card medium a front end portion supported by the substrate in the accommodating portion; and the outer casing includes a protection portion that covers the front end portion of the contact terminal from the card medium accommodating portion side. The card connector of claim 1, wherein the substrate has a metal foil portion, and a front end portion of the contact terminal contacts the metal foil portion. The card connector of claim 2, wherein the metal foil portion is electrically connected to the contact terminal. The card connector according to any one of claims 1 to 3, wherein the outer casing has a concave portion recessed toward the card medium accommodating portion side on a front side of the front end portion of the contact terminal.