This application claims priority to Chinese Application No. 201410191009.5, filed May 7, 2014, which is incorporated herein by reference in its entirety.
The present disclosure relates to a terminal seat and an electrical connector, and more specifically to a terminal seat and an electronic card connector for electrically connecting an electronic card.
A terminal of a connector for electrically connecting an electronic card generally has a resilient arm to resiliently contact a conductive pad of the electronic card, and the resilient arm must generate enough normal force to maintain a stable contact. Existing structure of the terminal is generally designed to make an outer profile of the terminal generally rectangular, which, for example, is disclosed in Chinese patent document published as CN103050806A.
Because the outer profile of the terminal is rectangular, and a plurality of terminals are arranged in a manner that the plurality of terminals are spaced apart from each other, a considerable space will be occupied by the plurality of terminals, which makes a dimension of the connector not easily reduced as a whole.
In an aspect, a terminal seat of the present disclosure comprises: an insulative body having a plurality of receiving recessed portions and a plurality of terminals. The plurality of terminals respectively correspond to the plurality of receiving recessed portions and are provided to the insulative body. Each terminal has a fixed unit, a pair of resilient arms, a contact portion and a soldering portion. The fixed unit is fixed to the insulative body, the pair of resilient arms extend into the corresponding receiving recessed portion from the fixed unit in a manner that the pair of resilient arms are spaced apart from each other and are jointed with each other at distal ends of the pair of resilient arms, the contact portion is formed at the joint portion of the pair of resilient arms, the solder portion extends from the fixed unit and is positioned between the pair of resilient arms.
In an embodiment, the contact portion has a curved shape and protrudes from surfaces of the pair of resilient arms.
In an embodiment, the plurality of receiving recessed portions each penetrate the insulative body.
In an embodiment, the fixed unit is a rectangular sheet piece, and the pair of resilient arms extend respectively from the fixed unit respectively adjacent to two ends of the fixed unit.
In an embodiment, the fixed unit comprises a first sheet body and a second sheet body which are spaced apart from each other, and the first sheet body is connected to one resilient arm and the soldering portion, and the second sheet body is connected to the other resilient arm.
In an embodiment, the plurality of terminals are divided into two terminal groups, each terminal group has at least three terminals, the terminals in each terminal group are arranged so that a central position of each terminal is positioned on one apex of a polygon and the contact portions of all the terminals are aligned with a straight line.
In an embodiment, each terminal group has three terminals and the central position of each terminal is positioned on one apex of a triangle.
In an embodiment, each terminal group has four terminals and the central position of each terminal is positioned on one apex of a quadrilateral.
In another aspect, a terminal seat of the present disclosure comprises an insulative body having a plurality of receiving recessed portions and a plurality of terminals. The plurality of terminals respectively correspond to the plurality of receiving recessed portions and are provided to the insulative body, each terminal has a fixed unit, a pair of resilient arms, a contact portion and a soldering portion, the fixed unit is fixed to the insulative body, the pair of resilient arms extend into the corresponding receiving recessed portion from the fixed unit in a manner that the pair of resilient arms are spaced apart from each other and are jointed with each other at distal ends of the pair of resilient arms, the contact portion is formed at the joint portion of the pair of resilient arms, the soldering portion extends from the fixed unknit, the plurality of terminals are divided into two terminal groups, each terminal group has at least three terminals, the terminals in each terminal group are arranged so that a central position of each terminal is positioned on one apex of a polygon and the contact potions of all the terminals are aligned with a straight line.
An electronic card connector can include a terminal seat and a metal shell. The metal shell cooperatively defines a card insertion space with the terminal seat, and the contact portions of the plurality of terminals protrude toward the card insertion space, the metal shell comprises a top plate which is spaced apart from and faces the insulative body and a resilient press unit which is formed to the top plate, the resilient press unit corresponds to the terminal seat in position and comprises at least a resilient piece, the each resilient piece extends from the top plate toward the card insertion space and has a press portion extending into the card insertion space and two oblique portions, the two oblique portions are respectively positioned on a front side and a rear side of the press portion along a card insertion direction and each obliquely intersect the card insertion direction.
In an embodiment, the press portion is a rectangular shape extending parallel to the card insertion direction, and the two oblique portions are respectively connected to two ends of the press portion.
In an embodiment, each resilient piece further has two protruding portions which each protrude from the press portion toward the card insertion space, and the two protruding portions are respectively positioned close to the two ends of the press portion.
In an embodiment, the electronic card connector further comprises another terminal seat, and the two terminal seats are sequentially arranged along the card insertion direction, the metal shell and the two terminal seats cooperatively define the card insertion space, and the metal shell further comprises another resilient press unit, the two resilient press units correspond to the two terminal seats respectively in position and are sequentially arranged along the card insertion direction.
The other features and effects of the present disclosure will be apparent through embodiments with reference to the Figures, and in Figures:
Before the present disclosure is described in detail, it should be noted that similar element is indicated by the same reference numeral in the following description.
As can be appreciated, an object of the present disclosure is to provide a terminal seat which has a smaller dimension. Another object of the present disclosure is to provide an electronic card connector which has a smaller dimension and allows an electronic card to be smoothly inserted into or ejected from the electronic card connector. As can be appreciated, the effects of the present disclosure are as follows. Since the terminal has a pair of resilient arms, the terminal can apply a larger normal force, and since the soldering portion is positioned between the two resilient arms, a space can be sufficiently used, not only the dimension of the terminal itself can be reduced but also it facilitates arrangement of the plurality of terminals in a stagger manner, and in turn the dimension of the terminal seat is reduced as a whole and the dimension of the electronic card connector is reduced as a whole. Moreover, by that the two oblique portions are respectively positioned on the front side and the rear side of the press portion along the card insertion direction and each obliquely intersect the card insertion direction, the resilient press unit of the metal shell can prevent the resilient piece from hooking the tray, and thus can allow the tray to move smoothly while the tray is inserted into or ejected from the card insertion space.
Referring to
Referring to
Moreover, the soldering portion 54 is positioned between the pair of resilient arms 52 so that a space can be sufficiently used, making the terminal 5 generally triangle as a whole, not only reduces a dimension of the terminal 5 itself but also facilitates arrangement of the plurality of terminals 5 in a stagger manner, and in turn reduces a dimension of the terminal seat 10 as a whole. In the embodiment, The plurality of terminals 5 are divided into two terminal groups, each terminal group has four terminals 5; in each terminal group, four terminals 5 are arranged so that a central position C of the each terminal 5 is positioned on one apex of a quadrilateral and the contact portions 53 of the four terminals 5 are aligned with a straight line L, and the straight line L is parallel to the card insertion direction D, so as to allow the each resilient arm 52 of the each terminal 5 to obliquely intersect the card insertion direction D, therefore, when the tray 2 is inserted into or ejected from the card insertion space 101, the tray 2 will not hook the each terminal 5, so as to prevent the each terminal 5 from being damaged. Referring to
Referring to
Referring to
Referring to
In conclusion, since the terminal 5 has a pair of resilient arms 52, the terminal 5 can apply a larger normal force, and since the soldering portion 54 is positioned between the two resilient arms 52, a space can be sufficiently used, not only the dimension of the terminal 5 itself can be reduced but also it facilitates arrangement of the plurality of terminals 5 in a stagger manner, and in turn the dimension of the terminal seat 10 is reduced as a whole and the dimension of the electronic card connector 100 is reduced as a whole. Moreover, by that the two oblique portions 132 are respectively positioned on the front side and the rear side of the press portion 131 along the card insertion direction D and each obliquely intersect the card insertion direction D, the resilient press unit 12 of the metal shell 1 can prevent the resilient piece 13 from hooking the tray 2, and thus can allow the tray 2 to move smoothly while the tray 2 is inserted into or ejected from the card insertion space 101.
The above described are only the embodiments of the present disclosure, which cannot limit the scope of the implementation of the present disclosure, that is, simple equivalent variations and modifications made according to the scope of the Claims and the description content of the present disclosure are still fallen within the scope of the present disclosure.
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2014 1 0191009 | May 2014 | CN | national |
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Number | Date | Country | |
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20160111801 A1 | Apr 2016 | US |