Wire-wound apparatus and high-voltage pulse generating circuit using wire-wound apparatus
AssigneeUshio Co., Ltd.
InventorsKenji Yamamori, Toyoharu Inoue
Life of this patent
Estimating the term…
Abstract
Electric field easing members (corona rings) for easing concentration of electric fields caused at edges of a core are disposed between the core and a winding to form a gap so to allow the presence of a cooling medium (insulating oil) between the top and bottom surfaces of the core and the electric field easing members. Thus, pressboards between the core and the electric field easing members become unnecessary, a wire-wound apparatus can be prevented from having a short service life due to the degradation of the pressboards, and the pressboards can be made to have a long service life because the electric field easing members are not heated by thermal conduction from the core.
Claims12
A wire-wound apparatus which comprises:
- a magnetic core having a magnetic alloy strip wound around the magnetic core tube;
- a winding wound around the magnetic core;
- electric field easing members for easing concentration of electric fields being arranged about the magnetic core and between the magnetic core and the winding;
- a gap being provided at least between the electric field easing members and end surfaces in a widthwise direction of the magnetic alloy strip of the magnetic core;
- and
- a cooling medium being provided in the gap between the electric field easing members and the magnetic alloy strip;
- and the cooling medium contacting and directly cooling the electric field easing members, the magnetic alloy strip, and the magnetic core.
A wire-wound apparatus which comprises:
- a magnetic core having a magnetic alloy strip wound around a magnetic core tube;
- a winding wound around the magnetic core;
- electric field easing members for easing concentration of electric fields being arranged about the magnetic core and between the magnetic core and the winding;
- a gap being provided between the electric field easing members and the magnetic core, the gap being arranged in a widthwise direction of the magnetic alloy strip where at least a major portion of a surface of the electric field easing members facing the magnetic core does not contact the magnetic core;
- and
- a cooling medium being provided in the gap between the electric field easing members and the magnetic alloy strip;
- and the cooling medium contacting and directly cooling the electric field easing members, the magnetic alloy strip, and the magnetic core.
A wire-wound apparatus which comprises:
- a magnetic core having a magnetic alloy strip wound around a magnetic core tube;
- a magnetic alloy strip provided on the magnetic core;
- a winding wound around the magnetic core;
- electric field easing members for easing concentration of electric fields being arranged about the magnetic core and between the magnetic core and the winding;
- a gap being provided between the electric field easing members and the magnetic core, the gap being arranged in a widthwise direction of the magnetic alloy strip and being formed by surfaces of the electric field easing members and the magnetic alloy core that face each other having different shapes;
- and
- a cooling medium being provided in the gap between the electric field easing members and the magnetic alloy strip;
- and the cooling medium contacting and directly cooling the electric field easing members, the magnetic alloy strip, and the magnetic core.
Dependencies are inferred from the claim text.