Battery connector with a block portion defined a curved surface

1. Field of the Invention

The present invention relates to a battery connector, more particularly to a battery connector for use with a handset of a telephone or a portable electrical device.

2. Description of Prior Arts

In an electrical device, such as a cell phone, it generally includes a battery apartment in which a batter connector is mounted for empowering the operation of the cell phone by a battery installed therein.

The FIG. 4 discloses a conventional battery connector 100 ′, comprising an insulative housing 1 ′ with passageways 11 ′ defined in it, and a plurality of contacts 2 ′ received in the passageways 11 ′. The said contact 2 ′ including a retention section 20 ′, an engaging section 21 ′ which bending and extending from one end of the retention section 20 ′, and a resilient section 22 ′ which extending from the other end of the retention section 20 ′, a contact portion 23 ′ which having a block portion 24 ′ on the free end is defined on the resilient section 22 ′, the block portion 24 ′ hold the upper surface of the groove 111 ′ of the passageway 11 ′ through the prepressing between the block portion 24 ′ and the upper surface.

An outside force is needed to exert on the contact portion 23 ′ of the contact 2 ′ when the battery connector 100 is put into use, the battery assembly contacting with contact portion 23 ′ close to build up an electrical connection under the outside force. The block potion 24 ′ is formed by stamping and it's easy to leave some burr on the stamping surface after stamping. The block portion 24 ′ can be held on the upper surface of the groove 111 ′ by the prepressing in the assembling process, so the burr would make some of the contacts 2 ′ locate at different positions in the passageways 11 ′, and also, in the moving process of the block potion 24 ′, the process of compression joint may not be smooth.

Hence, an improved battery connector is desired to overcome the disadvantages and problems of the prior art.

Accordingly, it is an object of the present invention to provide a battery connector in order to make the assembly process more smooth.

In order to achieve the above mentioned objects, a battery connector in accordance with a preferred embodiment of the present invention comprising: an insulative housing; a plurality of passageways defined in the insulative housing; a plurality of contacts received in the passageways; each contact including a retention section, an engaging section bending and extending from an end of the retention section, and a resilient section extending from the other end of the retention portion with a contact portion defined thereon, the contact portion having a block portion; wherein the cross section of the block portion showing cambered and extending against the contact portion. The design of the cambered cross section of the block portion which extending against the contact portion is helpful to make the assembly process more smooth, and it is helpful to prevent the contacts locating at different positions in the passageways.

Other objects, advantages and novel features of the invention will become more apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings.

The features of this invention which are believed to be novel are set forth with particularity in the appended claims. The invention, together with its objects and the advantages thereof, may be best understood by reference to the following description taken in conjunction with the accompanying drawings, in which like reference numerals identify like elements in the figures and in which:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a side elevational view of a contact of the battery connector shown in FIG. 1 ;

FIG. 3 is a solid coverage of the battery connector shown in FIG. 1 , the insulative housing is slivered partly; and

FIG. 4 is a solid coverage of the prior art, the insulative housing is slivered partly.

While the invention may be embodied in different forms, there is shown in the drawings, and herein will be described in detail, specific embodiments with the understanding that the present disclosure is to be considered an exemplification of the principles of the invention, and is not intended to limit the invention to that as illustrated and described herein.

Referring to the FIG. 1 to FIG. 3 , the present invention provides a battery connector 100 assembling to a printed circuit board of a cell phone for electrically mating to a corresponding joint, electrically connecting to a battery in the cell phone. The battery connector 100 includes an insulative housing 1 with a plurality of passageways 101 , a plurality of contacts 2 received in the passageways 101 .

The insulative housing 1 is a cube, including a top wall 10 , two sidewalls 12 and a front wall 11 , a plurality of passageways 101 are defined on the insulative housing 1 sidebyside, each passageway lot running through the front wall 11 and the top wall 10 , and the back end of the inner sidewall of each passageway 101 defining an upper step structure 1011 . A middle step structure 1012 is defined in the passageway 101 which extends rearwardly from the front wall 11 under the upper step structure 1011 . A lower horizontal retention groove 1013 is defined in the passageway 101 extending rearwardly from the front wall 11 . An upper downward step face 1014 is defined in the upper step structure 1011 .

Each contact 2 including a retention section 20 , an engaging section 21 which bending and extending from an end of the retention section 20 , and a resilient section 22 extending from the other end of the retention section 20 . The said retention section 20 having the shape of a flat plate, a plurality of stab portions 201 are set on the two sides of the retention section 20 to fix the contacts 2 in the insulative housing 1 . The said resilient section 22 is S-shaped, a contact portion 23 extending from the free end of the resilient section 22 , the contact portion 23 is C-shaped, and a rib 230 which is cambered is defined on the vertex of the contact portion 23 to connect with the printed circuit board. The contact portion 23 having a block portion 24 on the free end.

The cross section of the said block portion 24 is a circular section. Wherein the length of the block portion 24 is greater than the width of the contact portion 23 . The two ends of the block portion 24 lock the upper surface of the upper step structure 1011 by prepressing.

The battery assembly pressing the contact portion 23 and keeping a good touch with the contact 2 through elasticity. The design of the cambered cross section of the block portion 24 , and the block portion 24 extending against the contact portion 23 is helpful to make the assembly process more smooth, and it is helpful to prevent the contacts 2 locating at different positions in the passageways 101 . During assembling the block portion 24 first moves along the middle step structure 1012 and successively on the upper step structure 1011 once the retention section 20 moves along the retention groove 1013 .

It should be apparent to those skilled in the art that the above description is only illustrative of specific embodiments and examples of the invention. The invention should therefore cover various modifications and variations made to the herein-described structure and operations of the invention, provided they fall within the scope of the invention as defined in the following appended claims.