Back to results
US 10,594,287 B2Granted
Noise filter
AssigneesAutonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
InventorsTakeshi Aizawa, Yoshito Sakai
Life of this patent
Estimating the term…
Abstract
A noise filter (A) includes a case (10) and capacitors (20) accommodated in the case (10). Substantially flat surfaces of the capacitors (20) serve as ground-side electrodes (23). A ground terminal (17) is connected directly to the ground-side electrodes (23), and input/output terminals (15) are connected to input/output-side electrodes (21) of the capacitors (20). A routing space for leads for connecting the capacitors (20) and the ground terminal (17) is not necessary in the case (10). Therefore, the case (10) can be miniaturized.
Claims8
A noise filter, comprising:
- a case having opposite front and rear ends spaced apart in a front-rear direction, a fitting defining a receptacle open at the front end of the case;
- a capacitor accommodated in the case, a first part of an outer surface of the capacitor defining a ground-side electrode substantially in the form of a first flat surface facing toward the rear end of the case, a second part of the outer surface of the capacitor defining an input/output-side electrode substantially in the form of a second flat surface facing toward the front end of the case;
- a ground terminal formed with a ground-side connecting portion defining a flat plate having a plate thickness direction oriented in the front-rear direction and connected directly to the ground-side electrode inside the case, the ground terminal further having a ground function portion projecting outside through the rear end of the case and functioning as a connection means to a ground point;
- and
- an input/output terminal having a rear end disposed in the case and connected to the input/output-side electrode of the capacitor and further having a front end projecting through the case and into the receptacle.
2 more elements
A noise filter, comprising:
- a case;
- a capacitor accommodated in the case, a first part of an outer surface of the capacitor defining a ground-side electrode substantially in the form of a first flat surface, a second part of the outer surface of the capacitor defining an input/output-side electrode exposed substantially in the form of a second flat surface;
- a ground terminal formed with a ground-side connecting portion to be connected directly to the ground-side electrode of the capacitor inside the case, and the ground terminal further formed with a ground function portion projecting outside of the case and functioning as a connection means to a ground point;
- and
- a busbar having a base end part fixed to the input/output-side electrode and further having a tip part that functions as an input/output terminal, and wherein a magnetic core is provided in a conductive path connecting the input/output-side electrode and the input/output terminal.
2 more elements
A noise filter, comprising:
- a case having opposite front and rear ends spaced apart in a front-rear direction, first and second fittings defining first and second receptacles open at the front end of the case;
- first and second capacitors accommodated in the case, a first part of an outer surface of each of the capacitors defining a ground-side electrode substantially in the form of a rearwardly facing flat surface, a second part of the outer surface of each of the capacitors defining an input/output-side electrode substantially in the form of a forwardly facing flat surface;
- a ground terminal formed with a ground-side connecting portion defining a flat plate having a plate thickness direction oriented in the front-rear direction and connected directly to both of the ground-side electrodes inside the case, the ground terminal further having a ground function portion projecting outside through the rear end of the case and functioning as a connection means to a ground point;
- and
- first and second input/output terminals having rear ends disposed in the case and connected to the input/output-side electrode of the respective capacitors and further having front ends projecting through the case and into the respective first and second receptacles.
2 more elements
Dependencies are inferred from the claim text.