High-voltage electronic device

• US 5,844,778 A
• Filed: 08/11/1997
• Issued: 12/01/1998
• Est. Priority Date: 02/21/1995
• Status: Expired due to Term

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Murata Manufacturing Co Limited
• Inventors: Dohnishi, Kiyoyuki
• Primary Examiner(s): Tolin, Gerald P.
• Application Number:
  US08/907,916
• Time in Patent Office: 477 Days
• Field of Search: 439/485, 174/16.3, 174/260, 174/52.2, 174/DIG. 2, 336/65, 336/90, 336/96, 333/172, 165/80.3, 165/185, 338/226, 338/253, 338/275, 338/276, 361/674, 361/600, 361/622, 361/679, 361/688, 361/704, 361/707, 361/714, 361/715, 361/728
• US Class Current: 361/704
• CPC Class Codes: H05K 5/0091 Housing specially adapted for small components for resistors H01C; for capacitors H01G; for integrated circuits H01L23/00

Abstract

An electrical element comprising a housing or casing, a heat generating part such as a high-tension resistor, a non-heat generating part such as a capacitor, and a resin filling the housing. Further, the electrical element also includes connectors for establishing external connections between the above-mentioned capacitor or high-voltage resistor, the connectors being arranged at positions suitable for them to dissipate heat from the high-voltage resistor and radiate heat outside the element.

Claims

1. A high-voltage electronic device comprising:

a housing;

a heat resistant medium filled in the housing;

a capacitor disposed in the housing;

at least two hollow cylindrical receptacles disposed in the heat resistant medium, each of the hollow cylindrical receptacles having at a bottom thereof a conductive member electrically connected to the capacitor; and

a high-voltage resistor electrically connected to the hollow cylindrical receptacles and disposed in the heat resistant medium such that the high-voltage resistor is located between the hollow cylindrical receptacles.

2. A high-voltage electronic device according to claim 1, wherein the high-voltage resistor is symmetrically arranged with respect to the hollow cylindrical receptacles such that heat generated from the high-voltage resistor is substantially evenly dissipated to the heat resistant medium in every direction.

3. A high-voltage electronic device according to claim 1, wherein the high-voltage electronic device includes four hollow cylindrical receptacles, the four hollow cylindrical receptacles are arranged at corners of an imaginary quadratic box.

4. A high-voltage electronic device according to claim 1, wherein the high-voltage electronic device includes three hollow cylindrical receptacles, the three hollow cylindrical receptacles are arranged at corners of an imaginary triangular box.