Battery connector

A battery connector includes a dielectric housing having a plurality of terminal passages. A plurality of terminals are received in the terminal passages. Each terminal includes a supporting portion, a press portion twisted up in the front portion of the supporting portion, a first bending portion extending from the rear portion of the supporting portion, an elastic portion formed on the end of the first bending portion, a plug portion extending from the end of the elastic portion, a second bending portion formed on the upper portion of the plug portion, a guidable portion extending from the second bending portion. The supporting portion and the press portion extending out of a bottom surface of the dielectric housing to contact a printed circuit board elastically so that the signal between the battery connector and a electronic device transmits stably and the assembly height of the battery connector is adjustable.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a battery connector, and in particular to a battery connector which ensures that the signal between the battery connector and a electronic device is transmitted stably and the assembly height of the battery connector is adjustable.

2. The Related Art

Electronic appliances are widely used more and more with the development of the technology of the electrons. The electronic appliances usually utilize rechargeable batteries as power sources. Accordingly, a battery connector adapted to connect batteries to the electronic appliances is used widely. However, life-time of the battery connector is influenced by the frequently loading and unloading of the power sources. Therefore, the battery connector which has a long life-time is needed urgently.

Referring toFIG. 4andFIG. 5, a conventional battery connector100′ includes a dielectric housing10′ and a plurality of terminals20′ fixed thereto. The dielectric housing10′ includes a rear wall11′, two side walls12′ and a plurality of terminal passages13′. The terminal20′ includes a soldering portion21′, a plug portion22′ extending from the soldering portion21′, a bending portion23′ extending from the plug portion22′, and a contacting portion24′ extending from the bending portion23′. The bending portion23′ includes a first curved surface231′ and a second curved surface232′. The contacting portion24′ includes a third curved surface241′.

The plug portion22′ plugs into the terminal passage13′. The inner side of the plug portion22′ contacts the inner surface of the rear wall11′. The soldering portion21′ welds with a printed circuit board. When the third curved surface241′ of the contacting portion24′ is pressed, the first curved surface231′ and the second curved surface232′ share the stress with the third curved surface241′ in order to make the terminal20′ have a longer life-time.

However, in the progress of assembling, the battery connector100′ utilizes the soldering portion21′ welding with the printed circuit board so that the soldering portion21′ is easy to fall off from the printed circuit board because the soldering portion21′ is under pressure frequently. For that reason, the signal between the battery connector100′ and a electronic device will be influenced. Furthermore, the assembly height of the battery connector100′ couldn't be adapted effectively so that it is not convenient for the assembly procedure.

Hence, the conventional battery connector can not ensure the signal between the battery connector and the electronic device transmitting stably, further, the height of the battery connector is not adjustable.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a battery connector which ensures the signal between the battery connector and a electronic device transmitting stably and the assembly height of the battery connector is adjustable. The battery connector includes a dielectric housing. The dielectric housing has a plurality of terminal passages. The front portion of the terminal passage communicates with the outer space of the dielectric housing. The bottom portion of the terminal passage passes through the bottom surface of the dielectric housing. A plurality of terminals are received in the terminal passages. Each terminal includes a supporting portion, a press portion twisted up in the front portion of the supporting portion, a first bending portion extending from the rear portion of the supporting portion, an elastic portion formed on one end of the first bending portion, a plug portion extending from one end of the elastic portion opposite to the first bending portion, a second bending portion formed on the upper portion of the plug portion and a guidable portion extending from one end of the second bending portion opposite to the elastic portion. The battery connector utilizes the supporting portion and the press portion to elastically compress a printed circuit board so as to make the battery connector contact the printed circuit board all the time. Therefore, the signal between the battery connector and the electronic device is transmitted stably and the assembly height of the battery connector is effectively adjusted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Detailed description will hereunder be given of the preferred embodiment of a battery connector according to the present invention with reference to the accompanying drawings.

Please refer toFIG. 1. A battery connector100according to the present invention includes a dielectric housing10and a plurality of terminals20which are received in the dielectric housing10.

Referring toFIG. 2andFIG. 3, the dielectric housing10includes a top plate11, a plurality of through holes111forming in the top plate11, a rear wall12vertically extending from the rear portion of the top plate11and two side walls13vertically extending from sides of the top plate11. The top plate11, the rear wall12and the side walls13cooperatively form an interior space of the dielectric housing10. A plurality of insulating plates14vertically extend from the top plate11. A plurality of terminal passages15are formed between the side walls13and the insulating plates14. The front portion of the terminal passage15communicates with the outer space of the dielectric housing10. The bottom portion of the terminal passage15passes through the bottom surface of the dielectric housing10. Each through hole111communicates with each terminal passage15respectively. A block151is formed in the rear portion of the terminal passage15. An anti-position wall152is formed on the upper portion of the block151. A receiving passage153is formed below the block151. The bottom portion of the receiving passage153communicates with the outer space of the dielectric housing10.

Each terminal20has a supporting portion21. A press portion22is twisted up in the front portion of the supporting portion21. The bottom surface of the press portion22is an arc surface in order to enlarge the contacting area. A first bending portion23extending from the rear portion of the supporting portion21. An elastic portion24is formed on the end of the first bending portion23. A plug portion25extends from one end of the elastic portion24opposite to the first bending portion23. A second bending portion26is formed on the upper portion of the plug portion25. A connecting portion27extends from the front portion of the second bending portion26. A guidable portion28extends downwardly from the connecting portion27. A contacting portion29is formed on the front portion of the guidable portion28. A straight portion291extends from the contacting portion29. Two convexities292protrude from lateral sides of the end of the straight portion291respectively.

Please refer toFIG. 3, the following paragraphs will describe in detail the assembling of the battery connector100.

The terminals20are received in the terminal passages15of the dielectric housing10, respectively. The second bending portion26is received in the terminal passage15elastically. The contacting portion29extends out of the terminal passage15from the front surface of the dielectric housing10and communicates with a battery (not shown). The convexity292contacts the inner side of the front wall of the terminal passage15. The connecting portion27contacts the inner side of the top plate11. The plug portion25contacts the block151. The elastic portion24and the first bending portion23are received in the receiving passage153. The elastic portion24contacts the top wall of the receiving passage153. The supporting portion21and the press portion22extend out of the dielectric housing10from the bottom portion of the terminal passage15in order to communicate with a printed circuit board (not shown).

When the battery connector100is assembled, the press portion22of the terminal20extends out of terminal passage15from the bottom portion of the terminal passage15and contacts the printed circuit board elastically. The contacting area between the press portion22and the printed circuit board is enlarged because the bottom surface of the press portion22is an arc surface. Therefore, the effect of the connection is enhanced by the enlarged contacting area. Furthermore, the assembly height of the battery connector100is convenient to be adjusted by the elastic contact between the press portion22and the printed circuit board.

When the battery connector100connects with the battery, the contacting portion29contacts the battery. The terminal20is easily to be deformed by the stress which comes from the battery. The terminal20receives the stress which centers on the “A” area so that the lifetime of the terminal20is easy to become short. However, when the stress passes to the second bending portion26, the second bending portion26will disperse the stress because the second bending portion26is a big arc bend. In addition, when the second bending portion26receives the stress, the second bending portion26backwardly contacts the anti-position wall152. The anti-position wall152also reacts on the second bending portion26so that the anti-position wall152shares the stress with second bending portion26.

As described hereinabove, the battery connector100utilizes the press portion22to contact the printed circuit board elastically so that the assembly height of the battery connector100is adjustable. Furthermore, the arc surface of the press portion22contacts the printed circuit board all the time, therefore, the contact between the press portion22and the printed circuit board is stable. With this arrangement, the signal between the battery connector and the electronic device is much effective. In addition, the lifetime of the terminal20is prolonged because the second bending portion26is a big arc bend and disperses the stress effectively.