US3858149A - Frame supported grid resistors - Google Patents

Frame supported grid resistors Download PDF

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Publication number
US3858149A
US3858149A US00434920A US43492074A US3858149A US 3858149 A US3858149 A US 3858149A US 00434920 A US00434920 A US 00434920A US 43492074 A US43492074 A US 43492074A US 3858149 A US3858149 A US 3858149A
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United States
Prior art keywords
resistor
hexahedron
hexahedron structure
support frames
frames
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
US00434920A
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English (en)
Inventor
V Kirilloff
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.)
Mosebach Manufacturing Co
Original Assignee
Mosebach Manufacturing Co
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
Priority to IN901/CAL/74A priority Critical patent/IN139058B/en
Priority to AU69555/74A priority patent/AU472121B2/en
Application filed by Mosebach Manufacturing Co filed Critical Mosebach Manufacturing Co
Priority to US00434920A priority patent/US3858149A/en
Priority to BR10950/74A priority patent/BR7410950D0/pt
Application granted granted Critical
Publication of US3858149A publication Critical patent/US3858149A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/01—Mounting; Supporting

Definitions

  • ABSTRACT A grid resistor has a plurality of identical resistor support frames each defining a plane. The frames are stacked in alignment to form a hexahedron structure with levels of frames. Plates on the outer face of the hexahedron structure support the frames tightly against each other to maintain the hexahedron structure.
  • each frame there is at least one ribbon of resistance material which is fanfolded providing a plurality of equally spaced, parallel, uniform linear lengths connected by U-shaped folds.
  • the U-shaped folds have studs at the outer tips of the folds which engage holes in the resistor support frames.
  • Bus bars selectively couple the resistors in each le'vel to a pair of output terminals.
  • This invention relates to a resistor and in particular to a dynamic brake grid resistor used in locomotive cars.
  • Resistors used for dynamic braking of a locomotive car or other similar uses are: (i) subjected to excessive vibrations; (ii) have a confined space; and (iii) are generally air cooled by forced air from fans which adds to the vibration.
  • One of the problems is being able to use a thin ribbon material for resistance and yet maintain the spacing and support for the ribbon material in stacked layers to allow air to freely pass through the resistors to cool them.
  • the ribbon resistance must be securely supported because of the vibration from both the forced air and the locomotive movement on which the resistors are mounted.
  • Various types of fanfolded resistors have been suggested, however, some of them lend themselves to cumbersome manufacture and are not very easily or readily replaceable in the event that one layer of resistance burns out.
  • the invention deals with the concept of securing resistors in a layered stack which forms a hexahedron. Ribbon resistance elements used are secured at tips of fanfolds of the ribbon-like material. The tips of the fanfolds are in Contact or near contact with inner walls of supporting frames which support the ribbon resistors.
  • I provide a resistor having a pair of terminals comprising a plurality of resistor support frames each defining a plane and each having the same shape, the frames are stacked in alignment to form a hexahedron structure; means engaging the hexahedron structure and holding the support frames tightly against each other to maintain the hexahedron structure; resistor means positioned within the plane defined each by each resistor support frame; and means electrically coupling all of the resistor means between and to the terminals whereby a resistor is presented between the pair of terminals.
  • FIG. l is an exploded isometric view ofa grid resistor showing six levels of resistor support frames
  • FIG. 2 is a fragmented view of three fanfolded tips showing them in an isometric exploded view and their connection to a support frame;
  • FIG. 3 is a top plan view of three fanfolds showing their connection to the support frame.
  • FIG. 4 shows a typical electrical schematic of the resistor. It is to be understood, however, that various connections can be made in a combination series/parallel arrangement at various levels to produce various resistance schematics.
  • the resistor is generally shown as l0. It comprises a plurality of resistor support frames l2, 14, 16, 18, 20 and 22 also referred to in the drawing as levels l, 2, 3, 4, 5 and 6, respectively. Each of these resistor support frames define a plane. Each of the resistor support frames 12-22 are positioned in vertical alignment to form a hexahedron structure. The hexahedron structure is held together by a plurality of plates 24, 26, 28 and 30. These plates are bolted together as shown in the drawing to form an outer hexahedron structure. The plates 24 to 30 have flanges 31, 32, 34, 36, 38 and 40. Between plates 28 and 30 and the ends of the support frames 12-22 are insulating plates 42 and 44.
  • Rods 46 and 48 extend along end plates 28, 26, 30 and 24.
  • each of the frames 12-22 there are a pair of resistors 50 and 52 shown in frame 12 which is at the top of the hexahedron.
  • These resistors 50 and 52 are formed by a conductive ribbon material which is fanfolded thereby providing a plurality of equally spaced parallel uniform linear lengths connected by U- shaped folds.
  • the U-shaped folds (FIGS. 2 and 3) have studs 54 which are connected to the tips 56 of the U- shaped folds.
  • the studs 54 engage holes 58 in support frame 12.
  • the tips 56 are in contact or near contact with the inner wall of the support frame 12.
  • bus bars 60 and 62 on one end are supplied and similar bus bars not seen in the FIG. 1 are supplied on the opposite end of the hexahedron.
  • Terminal bars R1 and R2 couple the top layer and the bottom layer.
  • FIG. 4 shows a typical schematic of the resistances in the various levels. lt is to be understood, however, that this can change and can be selectively made to include varying combinations of series/parallel resistances.
  • Such an arrangement provides a resistor comprising a plurality of thin ribbon continuous fanfolded resistance elements in a rigid well-supported form. This is required because of the vibration due to the locomotive on which the resistor l0 is mounted and also the forced air from a fan (not shown) which forces air from the top of the FIG. 1 beginning at level 1 going throug level 6. As the resistances burn out due to heat, the plates 24-30 can be removed and the connections of the bus bars 60 and 62 can be disconnected and various levels can be removed by sliding them out from the structure proper and replacing them.
  • a resistor having a pair of terminals comprising:
  • resistor means positioned within the plane defined by each resistor support frame
  • a resistor as recited in claim 1 wherein the means engaging the hexahedron structure includes a plate along each surface formed by the hexahedron, at least two of the plates have flanges engaging the outer support frames of the hexahedron structure, the plates are connected to form an outer hexahedron which conforms to the shape of the hexahedron structure formed by the support frames.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Resistors (AREA)
US00434920A 1974-01-21 1974-06-21 Frame supported grid resistors Expired - Lifetime US3858149A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IN901/CAL/74A IN139058B (enrdf_load_stackoverflow) 1974-06-21 1974-04-19
AU69555/74A AU472121B2 (en) 1974-01-21 1974-05-29 Frame supported grid resistors
US00434920A US3858149A (en) 1974-06-21 1974-06-21 Frame supported grid resistors
BR10950/74A BR7410950D0 (pt) 1974-06-21 1974-12-30 Resistor eletrico

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00434920A US3858149A (en) 1974-06-21 1974-06-21 Frame supported grid resistors

Publications (1)

Publication Number Publication Date
US3858149A true US3858149A (en) 1974-12-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00434920A Expired - Lifetime US3858149A (en) 1974-01-21 1974-06-21 Frame supported grid resistors

Country Status (4)

Country Link
US (1) US3858149A (enrdf_load_stackoverflow)
AU (1) AU472121B2 (enrdf_load_stackoverflow)
BR (1) BR7410950D0 (enrdf_load_stackoverflow)
IN (1) IN139058B (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051452A (en) * 1975-08-18 1977-09-27 Cutler-Hammer, Inc. Annular resistor
US4100526A (en) * 1977-02-24 1978-07-11 Mosebach Manufacturing Company Grid resistor
US4162395A (en) * 1975-11-07 1979-07-24 Murata Manufacturing Co., Ltd. Heating unit for heating fluid
US4496933A (en) * 1984-02-27 1985-01-29 Westinghouse Electric Corp. Cooled resistor pack for brush with individually insulated strands
US4553126A (en) * 1983-08-03 1985-11-12 Grote & Hartmann Gmbh & Co. Kg Resistance heating element
US4651124A (en) * 1984-04-10 1987-03-17 Mosebach Manufacturing Company Frame supported grid resistor
US4847585A (en) * 1988-05-20 1989-07-11 Mosebach Manufacturing Company Center ventilated resistor grid
US5221917A (en) * 1992-06-05 1993-06-22 Mosebach Manufacturing Company Resistor ribbon for resistor grids
US5686880A (en) * 1995-11-21 1997-11-11 Mosebach Manufacturing Company Continuous weave resistor grid
SG103821A1 (en) * 2000-03-23 2004-05-26 El Pan Electricals India Pvt L Improved electric grid resistor having stainless steel resistive elements
US20210360810A1 (en) * 2018-08-17 2021-11-18 Ls Electric Co., Ltd. Tower-shaped support device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237142A (en) * 1960-03-05 1966-02-22 Eichenauer Fritz High capacity electric heater
US3550058A (en) * 1968-05-29 1970-12-22 Marvin A Du Bois Jr Electrical resistor structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237142A (en) * 1960-03-05 1966-02-22 Eichenauer Fritz High capacity electric heater
US3550058A (en) * 1968-05-29 1970-12-22 Marvin A Du Bois Jr Electrical resistor structure

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051452A (en) * 1975-08-18 1977-09-27 Cutler-Hammer, Inc. Annular resistor
US4162395A (en) * 1975-11-07 1979-07-24 Murata Manufacturing Co., Ltd. Heating unit for heating fluid
US4100526A (en) * 1977-02-24 1978-07-11 Mosebach Manufacturing Company Grid resistor
US4553126A (en) * 1983-08-03 1985-11-12 Grote & Hartmann Gmbh & Co. Kg Resistance heating element
US4496933A (en) * 1984-02-27 1985-01-29 Westinghouse Electric Corp. Cooled resistor pack for brush with individually insulated strands
US4651124A (en) * 1984-04-10 1987-03-17 Mosebach Manufacturing Company Frame supported grid resistor
US4847585A (en) * 1988-05-20 1989-07-11 Mosebach Manufacturing Company Center ventilated resistor grid
US5221917A (en) * 1992-06-05 1993-06-22 Mosebach Manufacturing Company Resistor ribbon for resistor grids
US5686880A (en) * 1995-11-21 1997-11-11 Mosebach Manufacturing Company Continuous weave resistor grid
SG103821A1 (en) * 2000-03-23 2004-05-26 El Pan Electricals India Pvt L Improved electric grid resistor having stainless steel resistive elements
US20210360810A1 (en) * 2018-08-17 2021-11-18 Ls Electric Co., Ltd. Tower-shaped support device
US11800672B2 (en) * 2018-08-17 2023-10-24 Ls Electric Co., Ltd. Tower-shaped support device

Also Published As

Publication number Publication date
BR7410950D0 (pt) 1975-08-26
AU6955574A (en) 1975-12-04
AU472121B2 (en) 1976-05-13
IN139058B (enrdf_load_stackoverflow) 1976-05-01

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