JPS6472584A - Printed wiring board - Google Patents

Printed wiring board

Info

Publication number
JPS6472584A
JPS6472584A JP22924787A JP22924787A JPS6472584A JP S6472584 A JPS6472584 A JP S6472584A JP 22924787 A JP22924787 A JP 22924787A JP 22924787 A JP22924787 A JP 22924787A JP S6472584 A JPS6472584 A JP S6472584A
Authority
JP
Japan
Prior art keywords
land
pattern
slit
wiring board
printed wiring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP22924787A
Other languages
Japanese (ja)
Inventor
Takatomo Matsumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to JP22924787A priority Critical patent/JPS6472584A/en
Publication of JPS6472584A publication Critical patent/JPS6472584A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0254—High voltage adaptations; Electrical insulation details; Overvoltage or electrostatic discharge protection ; Arrangements for regulating voltages or for using plural voltages
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components

Landscapes

  • Structure Of Printed Boards (AREA)

Abstract

PURPOSE:To obtain a printed wiring board in which a leakage due to oil smoke, dust, moisture, etc., scarcely occurs even at a short insulating distance by providing a slit between the insertion lands of a high voltage component and patterns. CONSTITUTION:A slit E is formed between insertion lands A, B of a high voltage component and patterns C, D. For example, assume that the land A is provided on the pattern C, the land B is provided on the pattern D, and a high voltage of N (kV) is applied between the lands A and B. lf the shortest linear distance L0 between the land A, the pattern C and the land B, the pattern D is L0=l1+X0+l2, where L0<10mm (0.6kV<N<=1kV), L0<20mm (1kV<N<=3 kV), L0<30mm (3kV<N<=7kV), an elliptical slit E in which both ends having width Xs, length Ys in the direction Ys are formed in a curvature with a radius R is formed at the intermediate between the land A, the pattern C and the land B, the pattern D. However, the width Xs of the slit E is set to Xs>=2mm.
JP22924787A 1987-09-11 1987-09-11 Printed wiring board Pending JPS6472584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22924787A JPS6472584A (en) 1987-09-11 1987-09-11 Printed wiring board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22924787A JPS6472584A (en) 1987-09-11 1987-09-11 Printed wiring board

Publications (1)

Publication Number Publication Date
JPS6472584A true JPS6472584A (en) 1989-03-17

Family

ID=16889121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22924787A Pending JPS6472584A (en) 1987-09-11 1987-09-11 Printed wiring board

Country Status (1)

Country Link
JP (1) JPS6472584A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02252286A (en) * 1989-03-27 1990-10-11 Matsushita Electric Ind Co Ltd Power conversion device
DE10063323A1 (en) * 2000-12-19 2002-07-04 Hella Kg Hueck & Co Brake light as LED circuit board in a splash-proof housing
JP2004228113A (en) * 2003-01-20 2004-08-12 Rion Co Ltd Insulating structure using printed board
JP2009103894A (en) * 2007-10-23 2009-05-14 Canon Inc Image forming apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02252286A (en) * 1989-03-27 1990-10-11 Matsushita Electric Ind Co Ltd Power conversion device
DE10063323A1 (en) * 2000-12-19 2002-07-04 Hella Kg Hueck & Co Brake light as LED circuit board in a splash-proof housing
DE10063323C2 (en) * 2000-12-19 2003-05-08 Hella Kg Hueck & Co Brake light as LED circuit board in a splash-proof housing
JP2004228113A (en) * 2003-01-20 2004-08-12 Rion Co Ltd Insulating structure using printed board
JP2009103894A (en) * 2007-10-23 2009-05-14 Canon Inc Image forming apparatus

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