TW201637292A - Card connector - Google Patents

Abstract

A card connector comprises an insulation board, multiple conductive terminals, a detection terminal, an insulation block and a metal cap. Each terminal has a fixed part, two elastic arms, a contact part and a welding part. The two elastic arms alternately extend from the fixed part and links to the contact part at end. The welding part extends from the fixed part and is located between the two elastic arms. The metal cap and the insulation board are integrated as one body which has a contact sheet. The contact sheet and the detection terminal commonly form a detection switch. The conductive terminals and the detection terminal are formed in advance on a metal module together. The metal module is combined with the insulation board by plug-in type molding when the insulation board is formed so that the conductive terminals and the detection terminal are combined with the insulation board. The insulation block is formed at the end of the detection terminal when the insulation board is formed.

Description

Card connector

The invention relates to a card connector, in particular to a light and thin card connector.

A card connector generally used for electrically connecting an electronic card, such as an electronic card such as a Mini SIM card, a Micro SIM card, or a Nano SIM card. Since the size of the electronic card is increasingly miniaturized, a suitable card is used. The size of the connector also needs to be miniaturized.

A conventional card connector, such as that disclosed in Japanese Patent No. 4,794,905, B, has two terminals and a plurality of conductive terminals of the detecting switch formed on the same metal plate, and is integrally formed with the insulating case in a molding process. Further, a card connector disclosed in the Chinese Patent Application No. CN201320273241.4 (Taiwan Corresponding Application No. TW102212867) has a structure including a detecting switch which is integrally formed by an insulating block in a molding process. The detecting terminal is formed by a contact piece formed integrally with the metal cover. In addition, for example, a card connector disclosed in US Pat. No. 7,914,330 (China Mainland Application No. CN200820201446.0, Taiwan Corresponding Application No. TW97217429), in which the metal cover and the insulating plate holder are combined and positioned The utility model comprises the following steps: forming two positioning elastic pieces integrally formed on both sides of the metal cover, and forming two grooves respectively engaging two positioning elastic pieces on both sides of the insulating plate seat, so that the positioning elastic piece extends into the groove to achieve the limit effect.

Although the existing card connector has many different structural designs, with the miniaturization of the card connector, the overall structure, such as the structure of the conductive terminal, the structure of the detecting terminal, and the assembly structure of the terminal, must be redesigned and mutually Cooperate, so there is still room for improvement.

Accordingly, it is an object of the present invention to provide a card connector that is lightweight, short, and capable of reducing the number of parts and simplifying the manufacturing and assembly processes.

Therefore, in some embodiments, the card connector of the present invention is used for electrically connecting an electronic card. The card connector includes: an insulating plate holder, a plurality of conductive terminals, and a detecting terminal embedded in the insulating plate holder. , an insulating block and a metal cover. Each of the terminals has a fixing portion, two elastic arms, a contact portion and a soldering portion. The fixing portion is embedded in the insulating plate seat, and the two elastic arms are extended from the fixing portion at a distance from each other and are in contact with the end. The portion is connected, and the welded portion extends from the fixing portion and is located between the two elastic arms. The insulating block is disposed at an end of the detecting terminal to contact the electronic card. The metal cover and the insulating plate holder are combined to define a card insertion space for accommodating the electronic card, and integrally have a contact piece, and the contact piece and the detecting terminal form a detecting switch. The conductive terminals and the detecting terminals are first formed on a metal module, and the metal module is coupled to the insulating plate holder by insert molding during the forming of the insulating plate seat, so that the conductive terminals are And the detection terminal and the absolute The edge plate is fixedly coupled, and the insulating block is formed together at the end of the detecting terminal when the insulating plate seat is formed.

In some implementations, the metal module includes a single material a strip portion, a terminal portion and a detecting portion, the terminal portion is connected to the strip portion and includes the conductive terminals, the detecting portion is connected to the strip portion and includes the detecting terminal at the insulating plate seat After molding, the tape portion is cut and the terminal portion is broken to separate the conductive terminals.

In some implementations, the terminal portion further includes a plurality of connections a connecting strip between the conductive terminals, and the insulating plate holder has a plurality of openings respectively corresponding to the connecting strips, so as to cut the connections through the openings after the insulating plate seats are molded article.

In some implementations, the contact portion of each of the conductive terminals a curved convex surface having two outer edges respectively connected to the outer edges of the two elastic arms, a first portion located in the intermediate portion and curved upward, and two respectively located at the first portion and the outer edges A second portion between the first portion and the corresponding outer edge is downwardly curved, the height of the outer edges being lower than the first portion of the curved convex.

In some implementations, the first portion of the curved convex surface The same curvature as the two second portions.

In some implementations, the detection terminal has a buried a fixing section of the insulating plate seat, an elastic section extending from the fixing section, a contact section extending from the elastic section, and a coupling section extending from the contact section and located at the end, the insulating block covering the bonding section When the electronic card is not inserted into the card insertion space, the contact piece of the detecting terminal and the contact piece of the metal cover Contacting, and when the electronic card is inserted into the card insertion space, the electronic card pushes the insulating block to separate the contact segment of the detecting terminal from the contact piece of the metal cover.

In some implementations, the detecting terminal is in a plugging direction The end portion is disposed away from the inlet side of the card insertion space and extends into the card insertion space.

In some implementations, the conductive terminals are divided into two groups and The rows, each set includes at least three conductive terminals, and the contact portions of each set of conductive terminals are arranged along the plugging direction.

In some embodiments, the insulating plate holder has the opposite Two outer side wall surfaces on two sides, two stopping step portions respectively protruding from the two outer side wall surfaces, and two card slots respectively formed by concavely recessing the two outer side wall surfaces; the metal cover further has a plate body and two respectively The two side walls are respectively disposed on the opposite side walls of the board body, and the two side walls respectively correspond to the two outer side wall surfaces, and one ends of the two side walls respectively abut the corresponding stopping step portions and respectively form an elastic limit extending into the corresponding card slot The arm extends from the corresponding stop step, thereby positioning the metal cover and the insulating plate seat in a plugging direction.

The invention has at least the following effects: by the structure of the conductive terminals The structure of the manufacturing and detecting switch and the assembled structure of the metal module are integrated, and the card connector of the present invention is made lighter and thinner, and the number of parts can be reduced, and the manufacturing and assembly processes can be simplified.

100‧‧‧ card connector

1‧‧‧Insulation plate seat

11‧‧‧First slot

12‧‧‧Second trough

13‧‧‧Opening

14‧‧‧Outer side wall surface

15‧‧‧stop step

16‧‧‧ card slot

2‧‧‧Electrical terminals

21‧‧‧ Fixed Department

22‧‧‧Bounce arm

23‧‧‧Contacts

231‧‧‧Bend convex

232‧‧‧ outer edge

233‧‧‧Part 1

234‧‧‧Part II

24‧‧‧Weld Department

3‧‧‧Detection terminal

31‧‧‧ fixed section

32‧‧‧Flexible section

33‧‧‧Contact section

34‧‧‧Combined section

4‧‧‧Strengthened board

5‧‧‧Insulation block

6‧‧‧Metal cover

61‧‧‧ card docking space

611‧‧‧ entrance

62‧‧‧ board body

63‧‧‧Contact film

64‧‧‧ side wall

65‧‧‧Flexible limit arm

66‧‧‧Detention Department

7‧‧‧Metal modules

71‧‧‧Material Department

72‧‧‧ Terminals

721‧‧‧Connecting strip

73‧‧‧Detection Department

74‧‧‧ Strengthening Board

91‧‧‧Electronic card

92‧‧‧ boards

A‧‧‧Drop direction

Other features and effects of the present invention will be described with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an embodiment of a card connector of the present invention and its assembly relationship with a circuit board; FIG. 2 is an exploded perspective view showing the implementation. FIG. 3 is an exploded perspective view showing an insulating plate holder, a plurality of conductive terminals, a detecting terminal, a reinforcing plate and an insulating block of the embodiment; FIG. 4 is a perspective view illustrating FIG. 5 is a perspective view showing the assembled relationship between a metal cover and the insulating plate holder of the embodiment; FIG. 6 is a top view showing a detecting switch of the embodiment in the electronic card The state when it is not inserted; and FIG. 7 is a plan view showing the state of the detecting switch of the embodiment when the electronic card is inserted.

Referring to FIG. 1 to FIG. 3, an embodiment of the card connector of the present invention is mounted on a circuit board 92 for electrically connecting an electronic card 91 (see FIG. 7). The card connector 100 includes an insulating plate holder 1. A conductive terminal 2, a detecting terminal 3, a reinforcing plate 4, an insulating block 5 and a metal cover 6.

Referring to FIG. 2 to FIG. 4 , each terminal has a fixing portion 21 , two elastic arms 22 , a contact portion 23 and a soldering portion 24 . The fixing portion 21 is embedded in the insulating plate holder 1 , and the two elastic arms 22 are mutually The fixing portion 21 extends from the fixing portion 21 and is connected to the contact portion 23 at the end. The soldering portion 24 extends from the fixing portion 21 and is located between the two elastic arms 22 for soldering to the circuit. Board 92. The contact portion 23 is supported by the two elastic arms 22, and is capable of providing a large normal force to be in stable contact with the electronic card 91. Furthermore, the soldering portion 24 is located between the pair of elastic arms 22, and the space can be fully utilized, so that the entire conductive terminal 2 is substantially triangular to reduce the size of the conductive terminal 2 itself. In this embodiment, the conductive terminals 2 are divided into two groups, each of which includes three conductive terminals 2, and the contact portions 23 of each set of the conductive terminals 2 are arranged along a plugging direction A. Each set of conductive terminals 2 can also be three or more, which can be adjusted according to requirements. The contact portion 23 of each of the conductive terminals 2 includes a curved convex surface 231 having two outer edges 232 respectively connected to the outer edges of the two elastic arms 22, and a first portion 233 located at the intermediate portion and curved upward. And two second portions 234 respectively between the first portion 233 and the two outer edges 232 that are bent downwardly from the first portion 233 toward the corresponding outer edge 232, the heights of the outer edges 232 being lower than the bend The first portion 233 of the convex surface 231. In this embodiment, the first portion 233 and the two second portions 234 together form the entire surface of the contact portion 23 facing away from the circuit board 92. That is, the two second portions 234 are connected to the first portion 233 and respectively The two outer edges 232 extend to the two outer edges 232, and the first portions 233 and the second portions 234 have the same curvature. More specifically, the entire surface of the contact portion 23 facing away from the circuit board 92 is a part of a spherical surface. Thereby, the contact portion 23 can be easily formed when the conductive terminal 2 is formed. However, the first portion 233 and the two second portions 234 are not limited to have the same curvature, that is, not limited to the embodiment.

The detecting terminal 3 has a solid embedded in the insulating plate holder 1 a segment 31, an elastic segment 32 extending from the fixing segment 31, and an elastic portion The segment 32 extends a contact segment 33 and a bonding segment 34 extending from the contact segment 33 and located at the end. The insulating block 5 is disposed at the end of the detecting terminal 3, that is, the bonding portion 34 is covered to contact the electronic card 91 (see FIG. 7). The reinforcing plate 4 is embedded in the insulating plate holder 1 to strengthen the structure of the insulating plate holder 1 to prevent the insulating plate holder 1 from warping.

The insulating plate holder 1 has two first through slots 11 side by side The elastic arm 22, the contact portion 23 and the welding portion 24 of the two sets of conductive terminals 2, and a second through slot 12 for receiving the elastic portion 32, the contact portion 33 and the joint portion 34 of the detecting terminal 3 together with the insulating block 5.

In this embodiment, the conductive terminal 2, the detecting terminal 3, and the reinforcement The plate 4 is first formed together on a metal module 7, and the metal module 7 is coupled to the insulating plate holder 1 by insert molding when the insulating plate holder 1 is formed. Specifically, the metal module 7 is made of a metal plate, and includes a strip portion 71, a terminal portion 72, a detecting portion 73, and a reinforcing plate portion 74. The terminal portion 72 is connected to the tape portion 71 and includes the conductive terminals 2 and a plurality of connecting bars 721 connected between the conductive terminals 2 . The detecting portion 73 is connected to the tape portion 71 and includes the detecting terminal 3 . The reinforcing plate portion 74 is connected to the tape portion 71 and includes the reinforcing plate 4. After the insulating plate holder 1 is molded, the tape portion 71 is cut off and the terminal portion 72 is broken to separate the conductive terminals 2, respectively. That is, after the tape portion 71 is cut off, the detecting portion 73 separately forms the detecting terminal 3 and the reinforcing plate portion 74 to form the reinforcing plate 4 independently, and the terminal portion 72 is formed by cutting and removing the connecting bar 721. A plurality of independently separated conductive terminals 2. The insulating plate holder 1 further has a plurality of openings 13 respectively corresponding to the connecting strips 721, so as to be in the insulating plate holder 1 After the forming, the connecting strips 721 are cut by the openings 13. The insulating block 5 is formed together at the end of the detecting terminal 3 when the insulating plate holder 1 is formed, that is, the bonding portion 34 is covered. This simplifies the manufacturing and assembly process.

Referring to FIG. 1, FIG. 2, FIG. 5 to FIG. 7, the insulating plate holder 1 is also There are two outer side wall surfaces 14 on opposite sides, two stopping step portions 15 respectively protruding from the two outer side wall surfaces 14, and two card slots 16 respectively recessed by the two outer side wall surfaces 14. The metal cover 6 is combined with the insulating plate holder 1 and defines a card insertion space 61 for accommodating the electronic card 91. In this embodiment, the metal cover 6 is integrally formed from a metal plate and integrally has a plate body 62, two side walls 64 respectively connected to opposite sides of the plate body 62, and a contact piece 63. The two side walls 64 are respectively disposed on the two outer side wall surfaces 14 of the insulating plate base 1 , and one ends of the two side walls 64 respectively abut the corresponding stopping step portions 15 and respectively form an elastic limiting arm extending into the corresponding card slot 16 . 65. The elastic limiting arm 65 extends away from the corresponding stopping step 15, whereby the metal cover 6 and the insulating plate holder 1 are relatively positioned in the insertion direction A. In detail, the two side walls 64 respectively form two latching portions 66 opposite to and spaced from the plate body 62 to be fastened to the bottom side of the insulating plate base 1 , thereby cooperating with the plate body 62 to make the metal cover 6 relatively The insulating plate holder 1 is restrained in the up and down direction, and the holding portion 66 can be further welded to the circuit board 92 and connected to the ground line. The two side walls 64 cooperate to position the metal cover 6 in the left-right direction with respect to the insulating plate holder 1. When the metal cover 6 is assembled to the insulating plate holder 1, the metal cover 6 is moved relative to the insulating plate holder 1 in the insertion direction A, and the inlet 611 side of the card insertion space 61 is formed to the blocking step portion 15 The direction moves, when the two side walls 64 of the metal cover 6 reach the positioning step 15 and reach the positioning and two The elastic limiting arm 65 on the side wall 64 extends into the corresponding slot 16 to stop the metal cover 6 from moving in the opposite direction, so that the metal cover 6 and the insulating plate holder 1 are relatively positioned in the insertion direction A. The contact piece 63 is integrally connected to the board body 62 and forms a detecting switch together with the detecting terminal 3. The detecting terminal 3 is disposed along the plugging direction A and has an end located away from the inlet 611 side of the card insertion space 61 and extending into the card insertion space 61. As shown in FIG. 6, when the electronic card 91 is not inserted into the card insertion space 61, the contact portion 33 of the detecting terminal 3 is in contact with the contact piece 63 of the metal cover 6 to form an electrical connection. As shown in FIG. 7, when the electronic card 91 is inserted into the card insertion space 61, the electronic card 91 pushes the insulating block 5 to separate the contact portion 33 of the detecting terminal 3 from the contact piece 63 of the metal cover 6. An open circuit is formed, thereby detecting whether the electronic card 91 is inserted into the card docking space 61 and starting the corresponding control.

Referring again to FIG. 2 and FIG. 7, when the electronic card 91 is plugged in by the card When the inlet 611 of the compartment 61 is disposed and moved relative to the conductive terminals 2 in the insertion direction A, the second pad 234 is a curved surface, so that the conductive pads (not shown) of the electronic card 91 can be opposite to the second portion 234. Smoothly moving to the first portion 233, the second portion 234 is a curved surface without scratching the conductive pads of the electronic card 91. When the electronic card 91 reaches the positioning, the first portion 233 of all the conductive terminals 2 can abut against the corresponding conductive pads of the electronic card 91 to form a stable electrical connection. Furthermore, the contact portions 23 of each set of the conductive terminals 2 are arranged in the plugging direction A such that the elastic arms 22 of the conductive terminals 2 are obliquely intersected with the plugging direction A, so that when the electronic card 91 enters and exits the card insertion space 61, Hook the conductive terminal 2 to avoid damage to the conductive terminal 2.

In summary, the structure of the conductive terminal 2, the detection switch The structure and the assembled structure of the metal module 7 are integrally formed, and the card connector 100 of the present embodiment is made lighter and thinner, and the number of parts can be reduced, and the manufacturing and assembly processes can be simplified.

However, the above is only an embodiment of the present invention, when The scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the present invention in the scope of the invention and the patent specification are still within the scope of the invention.

1‧‧‧Insulation plate seat

11‧‧‧First slot

12‧‧‧Second trough

13‧‧‧Opening

14‧‧‧Outer side wall surface

15‧‧‧stop step

16‧‧‧ card slot

2‧‧‧Electrical terminals

22‧‧‧Bounce arm

23‧‧‧Contacts

231‧‧‧Bend convex

232‧‧‧ outer edge

233‧‧‧Part 1

234‧‧‧Part II

24‧‧‧Weld Department

3‧‧‧Detection terminal

5‧‧‧Insulation block

6‧‧‧Metal cover

62‧‧‧ board body

63‧‧‧Contact film

64‧‧‧ side wall

65‧‧‧Flexible limit arm

66‧‧‧Detention Department

A‧‧‧Drop direction

Claims (9)

A card connector for electrically connecting an electronic card, the card connector comprising: an insulating plate holder; a plurality of conductive terminals, each of the terminals having a fixing portion, two elastic arms, a contact portion and a soldering portion The fixing portion is embedded in the insulating plate seat, and the two elastic arms are extended from the fixing portion and are connected to the contact portion at an end thereof, the welding portion is extended by the fixing portion and located between the two elastic arms; The detecting terminal is embedded in the insulating plate holder; an insulating block is disposed at the end of the detecting terminal to contact the electronic card; and a metal cover is combined with the insulating plate seat to jointly define a card for accommodating the electronic card The plugging space has a contact piece, and the contact piece and the detecting terminal form a detecting switch; wherein the conductive terminal and the detecting terminal are first formed together on a metal module, and the The metal module is coupled to the insulating plate holder by insert molding during the forming of the insulating plate seat, and the conductive terminals and the detecting terminal are combined with the insulating plate seat, and the insulating block is formed in the insulating plate. Formed together in the detection Sub-end. The card connector of claim 1, wherein the metal module integrally includes a tape portion, a terminal portion and a detecting portion, the terminal portion is connected to the tape portion and includes the conductive terminals, the detecting The measuring portion is connected to the strip portion and includes the detecting terminal, and the strip portion is molded after the insulating plate seat is molded The terminal portion is cut and the terminal portion is disconnected to separate the conductive terminals. The card connector of claim 2, wherein the terminal portion further comprises a plurality of connecting strips connected between the conductive terminals, and the insulating plate holder has a plurality of openings corresponding to the connecting strips respectively. The connecting strips are cut through the openings after the insulating plate seat is molded. The card connector of claim 1, wherein the contact portion of each of the conductive terminals comprises a curved convex surface having two outer edges respectively connected to the outer edges of the two elastic arms, and an intermediate portion a first portion that is bent upward, and two second portions between the first portion and the two outer edges that are bent downward from the first portion toward the corresponding outer edge, the heights of the two outer edges being lower than the curved convex surface The first part. The card connector of claim 4, wherein the first portion of the curved convex surface and the two second portions have the same curvature. The card connector of claim 1, wherein the detecting terminal has a fixing portion embedded in the insulating plate seat, an elastic portion extending from the fixing portion, a contact portion extending from the elastic portion, and a a bonding segment extending from the contact segment and located at the end, the insulating block covering the bonding segment; when the electronic card is not inserted into the card insertion space, the contact segment of the detecting terminal is in contact with the contact piece of the metal cover, And when the electronic card is inserted into the card insertion space, the electronic card pushes the insulating block to separate the contact segment of the detecting terminal from the contact piece of the metal cover. The card connector of claim 6, wherein the detecting terminal is disposed along a plugging direction and the end thereof is located away from an entrance side of the card docking space. Enter the card docking space. The card connector of claim 7, wherein the conductive terminals are divided into two groups, each of which includes at least three conductive terminals, and the contact portions of each of the conductive terminals are arranged along the plugging direction. The card connector of claim 1, wherein the insulating plate holder has two outer side wall faces on opposite sides, two stop step portions respectively protruding from the two outer side wall faces, and two outer side wall faces respectively The metal cover further has a plate body and two side walls respectively connected to opposite sides of the plate body, wherein the two side walls respectively correspond to the two outer wall surfaces, and one ends of the two side walls respectively correspond to the corresponding And stopping the step and forming an elastic limiting arm extending into the corresponding slot, the elastic limiting arm extending away from the corresponding stopping step, thereby disposing the metal cover and the insulating plate Relatively positioned in the plugging direction.