JPS5749147A - Magnetron - Google Patents

Magnetron

Info

Publication number
JPS5749147A
JPS5749147A JP12454780A JP12454780A JPS5749147A JP S5749147 A JPS5749147 A JP S5749147A JP 12454780 A JP12454780 A JP 12454780A JP 12454780 A JP12454780 A JP 12454780A JP S5749147 A JPS5749147 A JP S5749147A
Authority
JP
Japan
Prior art keywords
cooling air
magnetron
main body
cooling
yoke
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
JP12454780A
Other languages
Japanese (ja)
Inventor
Mamoru Kurokuzuhara
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12454780A priority Critical patent/JPS5749147A/en
Publication of JPS5749147A publication Critical patent/JPS5749147A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/005—Cooling methods or arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/105—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being corrugated elements extending around the tubular elements

Abstract

PURPOSE:To reduce the size of an area which cooling air strikes and improve cooling capacity by providing a concave cross-sectional shape for a yoke located on the cooling air input side of a longitudinal blow type magnetron which makes the cooling air strike in parallel to the axis. CONSTITUTION:Ring-shaped permanent magnets 2 and 3 are overlapped centering the bulb main body 1 of a magnetron and a magnetic circuit is formed with a frame-shaped yoke 4 in a configuration to hold them between, while a cooling fin 5 with a radial blade section is provided outside the bulb main body 1. Besides, a filter box 6 is mounted on the input side and the bulb main body 1 is cooled by allowing cooling air to enter a duct 7. 43a on the lower plate 43 of the yoke 4 hit by cooling air is molded in a concave shape so that the width W1 of the section 43a can be reduced. As a result, a great amount of cooling air can be supplied and the cooling capacity of the magnetron and its reliability can also be improved.
JP12454780A 1980-09-10 1980-09-10 Magnetron Pending JPS5749147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12454780A JPS5749147A (en) 1980-09-10 1980-09-10 Magnetron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12454780A JPS5749147A (en) 1980-09-10 1980-09-10 Magnetron

Publications (1)

Publication Number Publication Date
JPS5749147A true JPS5749147A (en) 1982-03-20

Family

ID=14888171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12454780A Pending JPS5749147A (en) 1980-09-10 1980-09-10 Magnetron

Country Status (1)

Country Link
JP (1) JPS5749147A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0657755U (en) * 1991-09-24 1994-08-12 宮本 厳 Automatic wearing seat belt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0657755U (en) * 1991-09-24 1994-08-12 宮本 厳 Automatic wearing seat belt

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