US1738113A - Rectifier for alternating current - Google Patents

Rectifier for alternating current Download PDF

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Publication number
US1738113A
US1738113A US288327A US28832728A US1738113A US 1738113 A US1738113 A US 1738113A US 288327 A US288327 A US 288327A US 28832728 A US28832728 A US 28832728A US 1738113 A US1738113 A US 1738113A
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US
United States
Prior art keywords
rectifier
alternating current
discs
current
canopy
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.)
Expired - Lifetime
Application number
US288327A
Inventor
Clarence E Ogden
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.)
KODEL RADIO Corp
Original Assignee
KODEL RADIO 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 KODEL RADIO CORP filed Critical KODEL RADIO CORP
Priority to US288327A priority Critical patent/US1738113A/en
Application granted granted Critical
Publication of US1738113A publication Critical patent/US1738113A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • H02H5/047—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using a temperature responsive switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/07—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L29/00
    • H01L25/073—Apertured devices mounted on one or more rods passed through the apertures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • My invention relates to rectifiers for alterhating current, and has particular reference to rectifiers of the dry metallic type.
  • the principal object of the present invention is to provide means whereby when the rectifying discs approach a dangerous temperature, the source of current supply is cut off automatically, thus relieving the discs and permitting the same to cool to the proper temperature, after which the current is again automatically connected and the desiredfiow resumed.
  • Figure 1 is an elevation of a rectifier constructed in accordance with this invention.
  • Figure 2 is a section of said rectifier.
  • Figures 3 and 4 are elevations of a modified structure.
  • Figure 5 is a diagrammatic view of the rectifier and circuits.
  • the numeral 1 indicates copper rectifier discs, the same being provided, 1n accordance with common construction, with layers of copper oxide 2-2 and copper film terminals 33. Contact is made with the films 3--3 by :5 means of plates 4, the same being of corrugated construction, as shown in Figure 2, to provide fines 5 for cooling purposes.
  • the strip of thermostatic metal 10 is arranged to make contact with terminal 7 when the strip is at normal operating temperature; when heated, by the accumulation of heat under the canopy, said heat arising from the discs under operation, the metal is deflected to the position shown in broken lines in Figure 3, and the current is automatically opened.
  • a canopy over said rectifier arranged to accumulate heat therefrom, and a thermostatic current control under said canopy, said control'being arranged to open the circuit when heated beyond normal op-",' erating temperature. 5
  • a canopy over said rectifier arranged to accumulate heat therefrom, a conductor constructed of thermostatic metal under said canopy, said conductor being adapted to open the circuit when heated beyond normal operating temperature.

Description

Dec. 3, 1929. c. E. OGDEN RECTIFIER FOR ALTERNATiNG CURRENT Filed June 26, 1928 Patented Dec. 3, 1929 UNITED STATES PATENT- OFFICE CLARENCE E. OGDEN, CINCINNATI, OHIO, ASSIGNOR TO THE KODEL RADIO CORPORATION A. CORPORATION OF OHIO RECTIFIER FOR ALTERNATING CURRENT Application filed June 26, 1928. Serial No. 288,327.
My invention relates to rectifiers for alterhating current, and has particular reference to rectifiers of the dry metallic type.
In the use of dry metallic rectifiers, as fo'r instance, copper oxide rectifiers, it is found that when heated beyond a certain tempera ture, the discs deteriorate in value, the resistance increasing to such a degree as mate rially to interfere with the proper current flow for which the rectifier is designed.
The principal object of the present invention is to provide means whereby when the rectifying discs approach a dangerous temperature, the source of current supply is cut off automatically, thus relieving the discs and permitting the same to cool to the proper temperature, after which the current is again automatically connected and the desiredfiow resumed.
Other objects of the invention will appear from the following detailed description.
In the drawings:
Figure 1 is an elevation of a rectifier constructed in accordance with this invention.
Figure 2 is a section of said rectifier.-
Figures 3 and 4 are elevations of a modified structure.
Figure 5 is a diagrammatic view of the rectifier and circuits.
The numeral 1 indicates copper rectifier discs, the same being provided, 1n accordance with common construction, with layers of copper oxide 2-2 and copper film terminals 33. Contact is made with the films 3--3 by :5 means of plates 4, the same being of corrugated construction, as shown in Figure 2, to provide fines 5 for cooling purposes. Arranged to make contact with plates 4 is a strip of thermostatic metal 6, adapted when 43 in its normal or cool condition, to make contact with one terminal 7 in the current load. When the discs become heated through operation they heat the thermostatic metal strip 6, which is of a nature to deflect, as shown in 45 broken lines in Figure 1, so as to open the cricuit before a dangerous disc temperature is attained.
In Figures 3 and 4 I have shown a stack 8 of rectifier discs, the same being assembled in the usual manner and disposed under a.
canopy 9. The strip of thermostatic metal 10 is arranged to make contact with terminal 7 when the strip is at normal operating temperature; when heated, by the accumulation of heat under the canopy, said heat arising from the discs under operation, the metal is deflected to the position shown in broken lines in Figure 3, and the current is automatically opened. i
From the foregoing description the nature and purpose of the present invention will be fully apparent to those skilled in the art to which the same appertains.
Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:
1. In combination with a rectifier of the character mentioned, a canopy over said rectifier arranged to accumulate heat therefrom, and a thermostatic current control under said canopy, said control'being arranged to open the circuit when heated beyond normal op-",' erating temperature. 5
2. In combination with a rectifier of the character mentioned, a canopy. over said rectifier arranged to accumulate heat therefrom, a conductor constructed of thermostatic metal under said canopy, said conductor being adapted to open the circuit when heated beyond normal operating temperature.
CLARENCE E. OGDEN.
US288327A 1928-06-26 1928-06-26 Rectifier for alternating current Expired - Lifetime US1738113A (en)

Priority Applications (1)

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US288327A US1738113A (en) 1928-06-26 1928-06-26 Rectifier for alternating current

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Application Number Priority Date Filing Date Title
US288327A US1738113A (en) 1928-06-26 1928-06-26 Rectifier for alternating current

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US1738113A true US1738113A (en) 1929-12-03

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435681A (en) * 1944-03-25 1948-02-10 Automatic Elect Lab Current rectifying system
US2437322A (en) * 1945-07-11 1948-03-09 Union Switch & Signal Co Electrical rectifier
US2462186A (en) * 1945-03-15 1949-02-22 Westinghouse Electric Corp Rectifier
US2549888A (en) * 1948-10-09 1951-04-24 Burkholder John Charles Rectifier plate
US2713655A (en) * 1951-01-04 1955-07-19 Grubman Stanley Selenium rectifier
US2721964A (en) * 1952-05-02 1955-10-25 Vickers Inc Power transmission
US2842722A (en) * 1957-03-04 1958-07-08 Int Rectifier Corp Rectifier mounting device
US3575645A (en) * 1969-07-17 1971-04-20 Gen Motors Corp Power zener package
US3693048A (en) * 1970-10-19 1972-09-19 Gen Motors Corp Fail open semiconductors

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435681A (en) * 1944-03-25 1948-02-10 Automatic Elect Lab Current rectifying system
US2462186A (en) * 1945-03-15 1949-02-22 Westinghouse Electric Corp Rectifier
US2437322A (en) * 1945-07-11 1948-03-09 Union Switch & Signal Co Electrical rectifier
US2549888A (en) * 1948-10-09 1951-04-24 Burkholder John Charles Rectifier plate
US2713655A (en) * 1951-01-04 1955-07-19 Grubman Stanley Selenium rectifier
US2721964A (en) * 1952-05-02 1955-10-25 Vickers Inc Power transmission
US2842722A (en) * 1957-03-04 1958-07-08 Int Rectifier Corp Rectifier mounting device
US3575645A (en) * 1969-07-17 1971-04-20 Gen Motors Corp Power zener package
US3693048A (en) * 1970-10-19 1972-09-19 Gen Motors Corp Fail open semiconductors

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