Capacitor unit
AssigneePanasonic Corporation
InventorsTatehiko Inoue, Junji Takemoto, Shusaku Kawasaki
Life of this patent
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Abstract
A capacitor unit is provided, which has a long lifetime and is free from maintenance when it is used as an emergency power supply of electronic control braking system, etc. and in which weight load is not applied to a circuit board, high reliability in use under harsh vibration conditions is achieved, and short-circuit defect does not occur even when an explosion-proof valve operates. The capacitor unit of the present invention includes a plurality of capacitors, a circuit board on which a circuit pattern for connecting the capacitors is formed, and a holder sandwiching and retaining the body parts of the capacitors.
Claims39
A capacitor unit comprising:
- a plurality of capacitors;
- a circuit board on which a circuit pattern for connecting the plurality of capacitors in series or in parallel is formed;
- and
- a holder sandwiching and returning body parts of the plurality of capacitors,
- wherein the plurality of capacitors have bipolar electrodes consisting of lead wires extending in the same direction;
- wherein the holder has cylindrical housing portions for sandwiching and housing the body parts of the plurality of capacitors;
- and
- wherein the circuit board is fixed to a plurality of height regulation bosses provided on the holder.
A capacitor unit comprising:
- a plurality of capacitors;
- a circuit board on which a circuit pattern for connecting the plurality of capacitors in series or in parallel is formed;
- and
- a holder sandwiching and returning body parts of the plurality of capacitors,
- wherein the holder is attached to an attaching position inside a case via a plurality of attaching portions provided on an outer periphery of the holder;
- and predetermined space is retained between a bottom portion of the capacitor and a bottom portion of the case.
A capacitor unit comprising:
- a plurality of capacitors;
- a circuit board on which a circuit pattern for connecting the plurality of capacitors in series or in parallel is formed;
- a holder sandwiching and returning body parts of the plurality of capacitors,
- a capacitor block formed of the plurality of capacitors, the holder and the circuit board;
- a control circuit portion on which a charge and discharge circuit for charging and discharging the capacitor block is formed;
- and
- a connector for electrically connecting the capacitor block to the control circuit portion,
- wherein the control circuit portion charges and discharges the capacitor by a charging/discharging signal of external load, and
- wherein the holder has, on an upper surface of the holder, a plurality of height regulation bosses so that space between the upper surface of the capacitor and the circuit board is maintained at a predetermined distance.
Dependencies are inferred from the claim text.