JPS5473248A - Enclosed switchboard - Google Patents

Enclosed switchboard

Info

Publication number
JPS5473248A
JPS5473248A JP14003677A JP14003677A JPS5473248A JP S5473248 A JPS5473248 A JP S5473248A JP 14003677 A JP14003677 A JP 14003677A JP 14003677 A JP14003677 A JP 14003677A JP S5473248 A JPS5473248 A JP S5473248A
Authority
JP
Japan
Prior art keywords
exhaust hole
proportional
advance
switch box
center portion
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.)
Granted
Application number
JP14003677A
Other languages
Japanese (ja)
Other versions
JPS5630762B2 (en
Inventor
Toru Tanimizu
Yoshio Ueki
Isao Yoshikawa
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 JP14003677A priority Critical patent/JPS5473248A/en
Publication of JPS5473248A publication Critical patent/JPS5473248A/en
Publication of JPS5630762B2 publication Critical patent/JPS5630762B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Patch Boards (AREA)

Abstract

PURPOSE: To excellently cool the inside of a switch box, by increasing the quantity of flowing air without enlarging an exhaust hole.
CONSTITUTION: A plate 16 with a number of small holes is formed in shapes, such as, triangle, semicircle, which become more distant in proportional to advance to a center portion of an exhaust hole 12 from one end of the exhaust hole and approach to the exhaust hole in proportional to second advance to the other end from the center portion. Consequently, the metallic plate 16 is tilted only by an inclined plane 18 as compared to the size of the exhaust hole 12 and heightened the exhaust area of air becomes large, and more air corresponding to only the portion can be exhausted, thus further cooling electric machinery and apparaturs, such as, three- phase buses 9, in a switch box 2.
COPYRIGHT: (C)1979,JPO&Japio
JP14003677A 1977-11-24 1977-11-24 Enclosed switchboard Granted JPS5473248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14003677A JPS5473248A (en) 1977-11-24 1977-11-24 Enclosed switchboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14003677A JPS5473248A (en) 1977-11-24 1977-11-24 Enclosed switchboard

Publications (2)

Publication Number Publication Date
JPS5473248A true JPS5473248A (en) 1979-06-12
JPS5630762B2 JPS5630762B2 (en) 1981-07-17

Family

ID=15259457

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14003677A Granted JPS5473248A (en) 1977-11-24 1977-11-24 Enclosed switchboard

Country Status (1)

Country Link
JP (1) JPS5473248A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4822513U (en) * 1971-07-20 1973-03-14
JPS5025959U (en) * 1973-07-12 1975-03-25

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4822513U (en) * 1971-07-20 1973-03-14
JPS5025959U (en) * 1973-07-12 1975-03-25

Also Published As

Publication number Publication date
JPS5630762B2 (en) 1981-07-17

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