1. Field of the Invention
The present invention relates to a battery connector, and particularly to a battery connector with low profile and minimal size, which engages to mating terminals reliably for ensuring stable transmission and charging.
2. Related Art
Portable electronic products, such as mobile phones, Personal Digital Assistant (PDA), Notebook and digital camera, are commonly used without limitation of prescribed place. These electronic products always consume power, and therefore charging is critical. Charging devices are ordinarily utilized in these products for supplying power. Battery connectors correspondingly serve as media between the electronic products and power. A battery connector comprises an insulative housing, a plurality of conductive terminals assembled on the insulative housing and soldered to a circuit board. Each conductive terminal includes a contact portion for contacting a charging terminal of the electronic products, and a soldering portion for soldering to the circuit board.
In prior art, the conductive terminals are often integrally formed. The soldering portions are bent for soldering to the circuit board, and the contact portions are suspended for possessing flexibility. However, the contact portions have to be bent at a fixed bending angle in that restraint of material and shaping conditions. The fixed bending angle limits height of contact portions, and therefore limits overall height of the battery connector. The contact portions of the conductive terminals of prior art can not become lower, depressing the miniature tendency.
Accordingly, an object of the present invention is to provide a battery connector which meeting miniature tendency, wherein contact elements thereof are not subject to shaping conditions, contact ends of the contact elements have desirable resiliency and low profile, and the overall height of the battery connector relatively decreases.
The battery connector comprises contact elements, and an insulative housing defining channels and assembling grooves nearby the channels. Guiding elements are movably mounted in the channels for guiding the contact elements. Soldering elements are assembled on the assembling grooves. The soldering elements at least have abutting portions contacting the contact elements all along. Spring elements are assembled to the guiding elements for providing the guiding elements with return force. Before charging, the contact elements are pushed rearward and are guided by the guiding elements to press the spring elements. The spring elements correspondingly produce energy and assure the contact elements engaging with charging terminals firmly. After charging, the contact elements are released, and the spring elements return to a normal state.
With reference to
The cover 7 are assembled adjacent to the soldering surface 21 of the insulative housing 2, and forms tabs 70 on opposite sides thereof for locking the locking grooves 26. First positioning grooves 71 are defined in a front surface of the cover 7 and face the soldering surface 21 for positioning ends of the spring elements 6.
The guiding elements 3 are rectangular and are movably mounted in the channels 22 for guiding the contact elements 4. Second positioning grooves 30 are defined in a rear surface of the guiding elements 3 (shown in
Each contact element 4 includes an engaging end 40 and a contact end 41, which are integrally formed of a common metal sheet and bent therefrom. The engaging ends 40 are fixed on the guiding elements 3 and near the mating surface 20. The contact ends 41 have portions extending beyond the channels 22 from the mating surface 20, as shown in
Each soldering element 5 is stamped from a separate metal sheet and is assembled on an assembling groove 23 of the insulative housing 2. Each soldering element 5 includes a soldering portion 50 and a flat abutting portion 51 at opposing ends thereof. The soldering portion 50 is bent appropriately for surface mounting. Barbs 52 are respectively formed on opposite sides of the abutting portion 51 for interferentially mounting on the assembling grooves 23. The abutting portions 51 contact the contact ends 41 of the contact elements 4 all along, as shown in
The spring elements 6 are compressed spring and are assembled between the guiding elements 3 and the cover 7, where ends of the spring elements 6 are mounted on the first positioning grooves 71 and another ends of the spring elements 6 are mounted on the second positioning grooves 30, respectively. Thus the guiding elements 3 possess return force when the spring elements 6 preserve energy.
In assembly, the contact elements 4 are firstly fixed on the guiding elements 3, and are assembled with the guiding elements 3 together onto the channels 22. The barbs 52 of the soldering elements 5 are fitted into the assembling grooves 23. The spring elements 6 are assembled between the guiding elements 3 and the cover 7, opposite ends thereof being mounted on the first positioning grooves 71 and the second positioning grooves 30 respectively. The assembling arms 251 of the positioning sheets 25 are interferentially assembled on the embedding grooves 24, as shown in
Further referring to
It is understood that the invention may be embodied in other forms without departing from the spirit thereof. Thus, the present examples and embodiments are to be considered in all respects as illustrative and not restrictive, and the invention is not to be limited to the details given herein.
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