Bus-bar for jointing capacitor
A bus-bar for assembling a capacitor device is disclosed, which is capable of improving the environment of a soldering operation for the bus-bar being soldered to a capacitor device, reducing the inferior rate of the capacitor device while improving the quality of the capacitor device, and reducing the weight of the capacitor module, in soldering the bus-bar to capacitor devices. The lead frame attached to polar plates by soldering is formed thinner than the other parts of the bus-bar, and opening parts having an oval or polygonal shape are formed on a surface of the bus-bar so that two adjoining capacitor devices can be exposed. The lead frame is formed in the opening in order for soldering with the polar plates of the capacitor device.
1. A bus-bar for assembling a capacitor device which is formed by winding a vapor-deposited metal film on one or both sides of a plastic film and equipped with polar plates, being made of Zn, a Zn alloy, or firstly of Zn and secondly of tin and formed on both sides of the wound part, the bus-bar forming anode and cathode plates by attaching each of the capacitor devices to a corresponding lead frame, comprising:
an opening part to partly expose the polar plates of two adjoining capacitor devices as overlapped with surfaces of the capacitor devices, and
the lead frame formed on a circumference of the opening part, having a thickness decreasing toward an end thereof.
2. The bus-bar for assembling a capacitor device according to claim 1 , wherein, when a plurality of capacitor devices are arranged in pluralities of horizontal and vertical lines, the opening part formed on a surface of the bus-bar is configured to expose two polar plates adjoining in a vertical direction.
3. The bus-bar for assembling a capacitor device according to claim 1 , wherein the lead frame has a thickness of 0.1 mm˜5.0 mm, a length of 0.5 mm˜20 mm, and a width of 0.5 mm˜20 mm.
4. The bus-bar for assembling a capacitor device according to claim 1 , wherein the lead frame is bent toward the polar plates with respect to a surface of the bus-bar by 0.1 mm˜5 mm, to be parallel with a surface of the polar plate.
5. The bus-bar for assembling a capacitor device according to claim 1 , wherein the opening part includes a recess part formed at a circumference thereof.
6. The bus-bar for assembling a capacitor device according to claim 1 , wherein a punching projection is formed at a bent plate of the bus-bar.
7. The bus-bar for assembling a capacitor device according to claim 1 , wherein two bent plates are disposed around an outer cover of the capacitor device.