US3207955A - Compartmented switch box with a terminal board and bus bars mounted on opposite sides of the partition - Google Patents

Compartmented switch box with a terminal board and bus bars mounted on opposite sides of the partition Download PDF

Info

Publication number
US3207955A
US3207955A US177850A US17785062A US3207955A US 3207955 A US3207955 A US 3207955A US 177850 A US177850 A US 177850A US 17785062 A US17785062 A US 17785062A US 3207955 A US3207955 A US 3207955A
Authority
US
United States
Prior art keywords
box
relay
bus bars
voltage
partition
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
US177850A
Inventor
Hoorn Fred G Von
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.)
General Electric Co
Original Assignee
General Electric 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
Application filed by General Electric Co filed Critical General Electric Co
Priority to US177850A priority Critical patent/US3207955A/en
Application granted granted Critical
Publication of US3207955A publication Critical patent/US3207955A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
    • H02B1/056—Mounting on plugboards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/485—Single busbar common to multiple springs

Definitions

  • a remote control relay Since one end of a remote control relay performs the high-voltage function while the other end is subject to low-voltage control, these relays are considered as having a high-voltage end and a low-voltage end.
  • the relays are customarily located on a voltage-dividing bracket or partition which has a number of apertures therein which allow the low-voltage end of a relay to be passed there-through.
  • Each relay has at least three control wires leading to the low-voltage end and two power conductors connected at the highvoltage end.
  • a typical relay box has eight to twelve relays therein and it is not unusual to have as many as 24 relays in a box. Thus, each box has an enormous wire *mass which makes it very difficult to dis-connect, remove,
  • An object of the present invention is to provide a relay switch box in" which the relays will be positioned for easy servicing.
  • Another object of the invention is to provide a relay switch box-in which the wiring can be reduced in length to a minimum and arranged in an orderly fashion allowing ready access to the relays.
  • Another object of the invention is to provide a relay mounting bracket which serves to partition the highvoltage leads from the low-voltage leads and yet provides for easy removal of relays.
  • a further object of the invention is to provide a relay mounting bracket which includes a terminal board on the low-voltage side and-spaced bus bars on the highvoltage side.
  • FIG. 1 is a broken perspective view of a relay mounting bracket as seen from the low-voltage side;
  • FIG. 2 is a broken perspective view of the relay mount ing bracket of FIG. 1 as seen from the high-voltage side;
  • FIG. 3 is a plan or layout View of a box containing the brackets of this invention, the cover being removed;
  • FIG. 4 is a side sectional view of the box of FIG. 3 with the side of the box removed;
  • FIG. 5 is a plan view of a terminal board used for low-voltage control wires
  • FIG. 6 is a sectional view taken along the lines 6-6 of FIG. 5;
  • FIG. 7 is a sectional view of a portion of terminal board and clip showing the method of establishing contact between control wires through the clip;
  • FIG. 8 is a perspective view of a spring clip
  • FIG. 9 is a sectional view taken along the lines 9-9 of FIG. 2 illustrating the structure of a bus bar mounting post
  • FIG. 10 illustrates a plug-in type of relay especially developed for mounting on bus bars
  • FIG. 11 shows the underside of the terminal board illustrated in plan view in FIG. 5.
  • this'invention is directed to a remote control wiring system switch box in which there is a relay mounting bracket comprising a sheet metal partition dividing the box into at least two compartments, the sheet metal partition having an intermediate surface on a slant with respect to the front and back of the box. This intermediate surface defines a plurality of apertures through which the low-voltage side of a remote control relay may be inserted.
  • a box 10 of conventional sheet metal construction used in electrical installations has a pair of relay brackets 11 mounted therein by means of mounting screws 12.
  • the mounting brackets 11 consist of three principal longitudinal sections-a base section 13, an intermediate section 14, and a top section 15.
  • An important aspect of this invention lies in the fact that the intermediate section 14 of the bracket 11 is slanted, preferably at an angle of about 45, with respect to the back and cover (not show-n) of the box 10.
  • the lengthwise portions of the sections 13 and 15 adjacent the slanted intermediate portion 14 are preferably substantially parallel to each other.
  • the slanted intermediate portion 14 has a plurality of spaced openings 16 providing a snug passage for the lowvoltage end of a remote control relay 17.
  • On the highvoltage side of the intermediate section 14 there is an insulating liner 18 of fibrous material which includes knockouts 19 in alignment with the openings 16.
  • the relay mounting bracket 11 as described above is .complete and usable. By virtue of having the intermediate section 14 at about a 45 slant, relays may be readily installed or removed.
  • the high-voltage conductors are exposed and easily accesible.
  • the low-voltage control conductors are not exposed but since control conductors are small and quite flexible, it is an easy matter to bend them around to an exposed position. Since they are colorcoded, there is no danger of confusion with regard to control wire connections.
  • the low-voltage side of the mounting bracket 11 is desirably provided with a wire guide 21 or a terminal board 22 as best shown in FIG. 3. Both the wire guide 21 and terminal board 22 are composed of insulating material and are fastened to the mounting bracket 11 by screws or rivets.
  • the terminal board 22, as best illustrated in FIGS. 5, 6, 7, and 11 includes a plurality of spaced square apertures 23 some of which are multipled together by a metal contact strip 24 (FIG. 11). Each aperture seats a U-shaped spring clip 25 which has forked tips 26 immediately adjacent a narrowed neck portion 27 which is the part of the clip seated in the apertures 23. Neck portion 27 is formed between the inwardly extending shoulders of the clip 25 and the outwardly extending forked tips. As best shown in FIG.
  • FIG. 5 illustrates the circuit through the terminal board 22 when a pushbutton 29 is manually operated to close a circuit through the relay 17. As may be seen by reference to FIG. 5, a number of control wires may be connected to these multipled-together terminals as shown in FIG. 5. The operating circuit for the relay 17 of FIG. 5 then runs from supply lead 32 through the I age.
  • a desirable addition to the high-voltage side of the mounting bracket 11 is a pair of parallel bus bars 33 and 34 (FIG. 2) maintained in position by end supports 35 mounted upon the intermediate section 14 of the bracket 11 by a screw 36 or a rivet.
  • end supports 35 mounted upon the intermediate section 14 of the bracket 11 by a screw 36 or a rivet.
  • the end supports 35 have an interior cavity into which the bus bars 33 and 34 lead.
  • a spring locking tongue 38 Adjacent to each bus bar in the cavity of the support 35 is a spring locking tongue 38 (FIG. 9) one end of which is in line with an aperture 39.
  • a spring locking tongue 38 Adjacent to each bus bar in the cavity of the support 35 is a spring locking tongue 38 (FIG. 9) one end of which is in line with an aperture 39.
  • an exposed conductor end In order to connect a high-voltage conductor to a bus bar, it is only necessary to insert an exposed conductor end through an aperture 39 and compress the locking tongue 38 until its tip wedges the conductor into contact with the bus bar.
  • Each aperture 39 has an adjacent aperture 41 through which a screw driver may be inserted to compress the locking tongue and release the conductor.
  • FIG. illustrates a plug-in relay which has been developed for use in this invention in conjunction with the bus bars 33 and 34.
  • This relay is not claimed as part of the present invention but is claimed in Soscia application, Serial No. 177,845, now Patent Number 3,118,039, which was filed of even date herewith.
  • the plu'g-in relay is equipped with a pair of spring-biased contacts 42 in which the bus bars 33 and 34 seat when the low-voltage end of the relay is inserted through an aperture left by removal of one of the knockouts 19 and the relay is pressed in position. Since these relays also have a pair of spring locking terminals 43 and 44 after the manner of Benander Patent No. 2,705,785, it is possible to replace a defective relay safely, quickly, and easily.
  • the steps consist of releasing the low-voltage connections of the relay, pulling the relay from the bus bars, releasing the wires connecting the relay to the load, and reversing the process just described in connecting a new relay.
  • the relays are de signed so as to avoid any possibility of a misalignment.
  • a spur member 45 on the relay prevents the relay from being mounted on the bus bars unless the spur member extends away from the mounting bracket 11.
  • each switch box has only a single high-voltage and low-voltage compartment.
  • FIGS. 3 and 4 shows a box having two high-voltage compartments and one low-volt- In this illustration the box includes a transformer 48 which reduces line voltage on the high-voltage side of 4. the 24-volt level on the low-voltage side. While the mounting bracket 11 for the transformer 48 is altered slightly from that designed for relays, the modification is minor and still have a configuration within the scope of this invention.
  • a relay mounting bracket comprising a sheet metal partition dividing the box into at least one high-voltage compartment and one lowvoltage compartment completely isolated from each other, said partition being bent into at least three lengthwise sections across the box with the center section having a slanted surface with respect to the front and back walls of the box, the lengthwise sections adjacent to the center section being substantially parallel, the center section having a plurality of apertures of a size to provide snug passage to the low-voltage end of a remote control relay and being otherwise imperforate, a terminal board comprised of insulating material disposed on the low-voltage side of said bracket, and a pair of bus bars positioned in parallel spaced relation on said center section on the highvoltage side of said bracket, said bus bars adapted to be connected to power leads and also to relays mounted on said center section.
  • a switch box with a relay mounting bracket as claimed in claim 1 wherein contact between the power leads and the bus bars is maintained by spring locking tongues.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Or Junction Boxes (AREA)

Description

Sept. 21, 1965 F, .VON HOORN 3,207,955
COMPARTM TED S I CH BOX WITH A TERMINAL BOARD AND BARS MOUNTED ON OPPOSITE SIDES OF THE PARTITION Filed March 6, 1962 4 Sheets-Sheet l "1 M "my. a I V fifi; 1 11 llllll ll WWMIIII/ M M II!! M (a /9 III w/ "k l Inventor'- Fred G. von Hoorn 2 3 4%? @MMWL His Attorney Sept. 21, 1965 F. G. VON HOORN 3,207,955
COMPAR'IMENTED SWITCH BOX WITH A TERMINAL BOARD AND BUS BARS MOUNTED 0N OPPOSITE SIDES OF THE PARTITION Filed March 6, 1962 4 Sheets-Sheet 2 3'6. 3. WW, 1..l!HHW!U,,...g WW
@ Emmi i w i P l 475 m QM "4f INL J firVe/v far 060 6: rah/40o";
Sept. 21, 1965 F. G. VON HOORN 3,207,955
COMPARTMENTED SWITCH BOX WITH A TERMINAL BOARD AND BUS BARS MOUNTED ON OPPOSITE SIDES OF THE PARTITION Filed March 6, 1962 4 Sheets-Sheet 3 Ihventor- Fred G. V0h Hoorn y MM/% /ulir z His Aflorneu Sept. 21, 1965 F. G. VON HOORN 3,207,955
COMPARTMENTED SWITCH BOX WITH A TERMINAL BOARD AND BUS BARS MOUNTED ON OPPOSITE SIDES OF THE PARTITION 4 Sheets-Sheet 4 Filed March 6, 1962 /77V/7 f- 060 6. web/90a;
4] 44M 1. @WXM United States Patent Office Patented Sept. 21, 1965 COMPARTMENTED SWITCH BOX WITH A TERMI- NAL BOARD AND BUS BARS MOUNTED N OPPOSITE SIDES OF THE PARTITION Fred G. von Hoorn, Warwick, RJL, assignor to General Electric Company, a corporation of New York Filed Mar. 6, 1962, Ser. No. 177,850 2 Claims. (Cl. 317-113) .tioned in a box located near the electrical service entrance equipment. The National Electrical Code requires that there be a partition at all times between high-voltage conductors and low-voltage conductors. Since one end of a remote control relay performs the high-voltage function while the other end is subject to low-voltage control, these relays are considered as having a high-voltage end and a low-voltage end. The relays are customarily located on a voltage-dividing bracket or partition which has a number of apertures therein which allow the low-voltage end of a relay to be passed there-through. Each relay :has at least three control wires leading to the low-voltage end and two power conductors connected at the highvoltage end. A typical relay box has eight to twelve relays therein and it is not unusual to have as many as 24 relays in a box. Thus, each box has an enormous wire *mass which makes it very difficult to dis-connect, remove,
and replace relays during servicing operations.
An object of the present invention is to provide a relay switch box in" which the relays will be positioned for easy servicing.
Another object of the invention is to provide a relay switch box-in which the wiring can be reduced in length to a minimum and arranged in an orderly fashion allowing ready access to the relays.
Another object of the invention is to provide a relay mounting bracket which serves to partition the highvoltage leads from the low-voltage leads and yet provides for easy removal of relays.
A further object of the invention is to provide a relay mounting bracket which includes a terminal board on the low-voltage side and-spaced bus bars on the highvoltage side.
Other objects of the invention will become apparent from the following specification considered in conjunction with the appended drawings wherein FIG. 1 is a broken perspective view of a relay mounting bracket as seen from the low-voltage side;
FIG. 2 is a broken perspective view of the relay mount ing bracket of FIG. 1 as seen from the high-voltage side;
FIG. 3 is a plan or layout View of a box containing the brackets of this invention, the cover being removed;
FIG. 4 is a side sectional view of the box of FIG. 3 with the side of the box removed;
FIG. 5 is a plan view of a terminal board used for low-voltage control wires;
FIG. 6 is a sectional view taken along the lines 6-6 of FIG. 5;
FIG. 7 is a sectional view of a portion of terminal board and clip showing the method of establishing contact between control wires through the clip;
FIG. 8 is a perspective view of a spring clip;
FIG. 9 is a sectional view taken along the lines 9-9 of FIG. 2 illustrating the structure of a bus bar mounting post;
FIG. 10 illustrates a plug-in type of relay especially developed for mounting on bus bars; and
FIG. 11 shows the underside of the terminal board illustrated in plan view in FIG. 5.
Brieflly stated, in accordance with one of its aspects, this'invention is directed to a remote control wiring system switch box in which there is a relay mounting bracket comprising a sheet metal partition dividing the box into at least two compartments, the sheet metal partition having an intermediate surface on a slant with respect to the front and back of the box. This intermediate surface defines a plurality of apertures through which the low-voltage side of a remote control relay may be inserted.
Referring to FIGS. 1-4, a box 10 of conventional sheet metal construction used in electrical installations has a pair of relay brackets 11 mounted therein by means of mounting screws 12.
The mounting brackets 11 consist of three principal longitudinal sections-a base section 13, an intermediate section 14, and a top section 15. An important aspect of this invention lies in the fact that the intermediate section 14 of the bracket 11 is slanted, preferably at an angle of about 45, with respect to the back and cover (not show-n) of the box 10. The lengthwise portions of the sections 13 and 15 adjacent the slanted intermediate portion 14 are preferably substantially parallel to each other. The slanted intermediate portion 14 has a plurality of spaced openings 16 providing a snug passage for the lowvoltage end of a remote control relay 17. On the highvoltage side of the intermediate section 14 there is an insulating liner 18 of fibrous material which includes knockouts 19 in alignment with the openings 16.
The relay mounting bracket 11 as described above is .complete and usable. By virtue of having the intermediate section 14 at about a 45 slant, relays may be readily installed or removed. The high-voltage conductors are exposed and easily accesible. The low-voltage control conductors are not exposed but since control conductors are small and quite flexible, it is an easy matter to bend them around to an exposed position. Since they are colorcoded, there is no danger of confusion with regard to control wire connections.
The low-voltage side of the mounting bracket 11 is desirably provided with a wire guide 21 or a terminal board 22 as best shown in FIG. 3. Both the wire guide 21 and terminal board 22 are composed of insulating material and are fastened to the mounting bracket 11 by screws or rivets. The terminal board 22, as best illustrated in FIGS. 5, 6, 7, and 11 includes a plurality of spaced square apertures 23 some of which are multipled together by a metal contact strip 24 (FIG. 11). Each aperture seats a U-shaped spring clip 25 which has forked tips 26 immediately adjacent a narrowed neck portion 27 which is the part of the clip seated in the apertures 23. Neck portion 27 is formed between the inwardly extending shoulders of the clip 25 and the outwardly extending forked tips. As best shown in FIG. 7, the end of a control wire 28 from which the insulation has been removed, may be inserted between the forked tips 26 of the clip 25 when the clip is manually compressed to leave a small clearance between the neck portion 27 and the aperture wall 23. FIG. 5 illustrates the circuit through the terminal board 22 when a pushbutton 29 is manually operated to close a circuit through the relay 17. As may be seen by reference to FIG. 5, a number of control wires may be connected to these multipled-together terminals as shown in FIG. 5. The operating circuit for the relay 17 of FIG. 5 then runs from supply lead 32 through the I age.
common connection of the manual switch 29, through the switch 29 to one of the relay control wires, through the relay 17 to the common lead, and through this lead via the terminal board 22 to the supply lead 31. I
A desirable addition to the high-voltage side of the mounting bracket 11 is a pair of parallel bus bars 33 and 34 (FIG. 2) maintained in position by end supports 35 mounted upon the intermediate section 14 of the bracket 11 by a screw 36 or a rivet. For protection against accidental shocks the bus bars 33 and 34 are insulated but the insulation is removed at spaced intervals to expose the bar as shown at 37 in FIG. 2. The end supports 35 have an interior cavity into which the bus bars 33 and 34 lead.
Adjacent to each bus bar in the cavity of the support 35 is a spring locking tongue 38 (FIG. 9) one end of which is in line with an aperture 39. In order to connect a high-voltage conductor to a bus bar, it is only necessary to insert an exposed conductor end through an aperture 39 and compress the locking tongue 38 until its tip wedges the conductor into contact with the bus bar. Each aperture 39 has an adjacent aperture 41 through which a screw driver may be inserted to compress the locking tongue and release the conductor.
FIG. illustrates a plug-in relay which has been developed for use in this invention in conjunction with the bus bars 33 and 34. This relay is not claimed as part of the present invention but is claimed in Soscia application, Serial No. 177,845, now Patent Number 3,118,039, which was filed of even date herewith. The plu'g-in relay is equipped with a pair of spring-biased contacts 42 in which the bus bars 33 and 34 seat when the low-voltage end of the relay is inserted through an aperture left by removal of one of the knockouts 19 and the relay is pressed in position. Since these relays also have a pair of spring locking terminals 43 and 44 after the manner of Benander Patent No. 2,705,785, it is possible to replace a defective relay safely, quickly, and easily. The steps consist of releasing the low-voltage connections of the relay, pulling the relay from the bus bars, releasing the wires connecting the relay to the load, and reversing the process just described in connecting a new relay. The relays are de signed so as to avoid any possibility of a misalignment.
For example, a spur member 45 on the relay prevents the relay from being mounted on the bus bars unless the spur member extends away from the mounting bracket 11.
While the mounting bracket of this invention is designed particularly for use in conjunction with a plug-in relay as illustrated in FIG. 10, conventional relays may be used. In this event, the bus bars must be removed and the relays mounted in the conventional manner by means of the snap springs 47 on the relay barrel illustrated in FIG. 10. It is likewise not necessary that each switch box have only a single high-voltage and low-voltage compartment. The illustration of FIGS. 3 and 4 shows a box having two high-voltage compartments and one low-volt- In this illustration the box includes a transformer 48 which reduces line voltage on the high-voltage side of 4. the 24-volt level on the low-voltage side. While the mounting bracket 11 for the transformer 48 is altered slightly from that designed for relays, the modification is minor and still have a configuration within the scope of this invention.
While the invention has been described with reference to certain specific embodiments, these embodiments have been illustrative rather than limiting. Accordingly, the invention should be limited in scope only as may be necessitated by the scope of the appended claims.
What I claim as new and desire to secure by Letters Patent of the United States is:
1. In a remote control wiring system switch box having at least front and back walls, a relay mounting bracket comprising a sheet metal partition dividing the box into at least one high-voltage compartment and one lowvoltage compartment completely isolated from each other, said partition being bent into at least three lengthwise sections across the box with the center section having a slanted surface with respect to the front and back walls of the box, the lengthwise sections adjacent to the center section being substantially parallel, the center section having a plurality of apertures of a size to provide snug passage to the low-voltage end of a remote control relay and being otherwise imperforate, a terminal board comprised of insulating material disposed on the low-voltage side of said bracket, and a pair of bus bars positioned in parallel spaced relation on said center section on the highvoltage side of said bracket, said bus bars adapted to be connected to power leads and also to relays mounted on said center section. 2. A switch box with a relay mounting bracket as claimed in claim 1 wherein contact between the power leads and the bus bars is maintained by spring locking tongues.
References Cited by the Examiner UNITED STATES PATENTS 1,839,348 l/32 Shaw 336-67 X 2,014,442 9/35 Miller 17452 X 2,359,186 9/44 Zelt 174-52 X 2,662,109 12/53 Tapp et al 17452 2,705,785 4/55 Benander 339- 2,588,082 3/57 Brown et al.
2,870,424 1/59 Franz 339--l28 X 2,983,894 5/61 Lawson et al 339258 X FOREIGN PATENTS 751,675 7/56 Great Britain. 1,236,326 6/60 France.
OTHER REFERENCES Electrical Mfg, October 1957, page 222.
LARAMIE E. ASKIN, Primary Examiner.
JOHN P, WILDMAN, E. JAMES SAX, Examiners.

Claims (1)

1. IN A REMOTE CONTROL WIRING SYSTEM SWITCH BOX HAVING AT LEAST FRONT AND BACK WALLS, A RELAY MOUNTING BRACKET COMPRISING A SHEET METAL PARTITION DIVIDING THE BOX INTO AT LEAST ONE HIGH-VOLTAGE COMPARTMENT AND ONE LOWVOLTAGE COMPARTMENT COMPLETELY ISOLATED FROM EACH OTHER, SAID PARTITION BEING BENT INTO AT LEAST THREE LENGTHWISE SECTION ACROSS THE BOX WITH THE CENTER SECTION HAVING A SLANTED SURFACE WITH RESPECT TO THE FRONT AND BACK WALLS OF THE BOX, THE LENGTHWISE SECTIONS ADJACENT TO THE CENTER SECTION BEING SUBSTANTIALLY PARALLEL, THE CENTER SECTION HAVING A PLURALITY OF APERTURES OF A SIZE TO PROVIDE SNUG PASSAGE TO THE LOW-VOLTAGE END OF A REMOTE CONTROL RELAY AND BEING OTHERWISE IMPERFORATE, A TEMINAL BOARD COMPRISED OF INSULATING MATERIAL DISPOSED ON THE LOW-VOLTAGE SIDE OF SAID BRACKET, AND A PAIR OF BUS BARS POSITIONED IN PARALLEL SPACED RELATION ON SAID CENTER SECTION ON THE HIGHVOLTAGE SIDE OF SAID BRACKET, SAID BUS BARS ADAPTED TO BE CONNECTED TO POWER LEADS AND ALSO TO RELAYS MOUNTED ON SAID CENTER SECTION.
US177850A 1962-03-06 1962-03-06 Compartmented switch box with a terminal board and bus bars mounted on opposite sides of the partition Expired - Lifetime US3207955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US177850A US3207955A (en) 1962-03-06 1962-03-06 Compartmented switch box with a terminal board and bus bars mounted on opposite sides of the partition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US177850A US3207955A (en) 1962-03-06 1962-03-06 Compartmented switch box with a terminal board and bus bars mounted on opposite sides of the partition

Publications (1)

Publication Number Publication Date
US3207955A true US3207955A (en) 1965-09-21

Family

ID=22650199

Family Applications (1)

Application Number Title Priority Date Filing Date
US177850A Expired - Lifetime US3207955A (en) 1962-03-06 1962-03-06 Compartmented switch box with a terminal board and bus bars mounted on opposite sides of the partition

Country Status (1)

Country Link
US (1) US3207955A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493817A (en) * 1968-09-09 1970-02-03 Gen Electric Relay center with staggered relays
US3758828A (en) * 1972-02-29 1973-09-11 Gen Electric Relay center for remote control wiring system
US4460883A (en) * 1981-03-25 1984-07-17 U.S. Philips Corporation Stabilization ballast for operating a gas and/or vapor discharge lamp
US4697223A (en) * 1980-03-24 1987-09-29 Heinz Grunst Electrical apparatus, particularly apparatus for installation
US4794490A (en) * 1987-09-23 1988-12-27 Epstein Barry M Heavy-duty cable termination system
EP0898325A1 (en) * 1997-08-14 1999-02-24 PHOENIX CONTACT GmbH & Co. Electrical spring force terminal
DE19654611B4 (en) * 1996-12-20 2004-09-30 Wago Verwaltungsgesellschaft Mbh Spring clamp connection for electrical conductors

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1839348A (en) * 1929-05-31 1932-01-05 Killark Electric Mfg Company Cut out box
US2014442A (en) * 1932-06-13 1935-09-17 Edwards And Company Inc Signaling device
US2359186A (en) * 1941-12-30 1944-09-26 Gen Electric Electric apparatus
US2588082A (en) * 1948-12-27 1952-03-04 Brown John Electronic circuit chassis
US2662109A (en) * 1952-03-12 1953-12-08 Gilbert & Barker Mfg Co Sectional housing for electrical control and ignition apparatus of fluid fuel burners
US2705785A (en) * 1952-11-18 1955-04-05 Gen Electric Wiring device terminal connecting means
GB751675A (en) * 1953-09-17 1956-07-04 Arrow Electric Switches Ltd Improvements in terminals for electrical wires
US2870424A (en) * 1954-12-30 1959-01-20 Bell Telephone Labor Inc Electrical socket for miniature components
FR1236326A (en) * 1959-09-21 1960-07-15 Low frequency amplifier device
US2983894A (en) * 1956-12-26 1961-05-09 Axel A Lawson Solderless connectors

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1839348A (en) * 1929-05-31 1932-01-05 Killark Electric Mfg Company Cut out box
US2014442A (en) * 1932-06-13 1935-09-17 Edwards And Company Inc Signaling device
US2359186A (en) * 1941-12-30 1944-09-26 Gen Electric Electric apparatus
US2588082A (en) * 1948-12-27 1952-03-04 Brown John Electronic circuit chassis
US2662109A (en) * 1952-03-12 1953-12-08 Gilbert & Barker Mfg Co Sectional housing for electrical control and ignition apparatus of fluid fuel burners
US2705785A (en) * 1952-11-18 1955-04-05 Gen Electric Wiring device terminal connecting means
GB751675A (en) * 1953-09-17 1956-07-04 Arrow Electric Switches Ltd Improvements in terminals for electrical wires
US2870424A (en) * 1954-12-30 1959-01-20 Bell Telephone Labor Inc Electrical socket for miniature components
US2983894A (en) * 1956-12-26 1961-05-09 Axel A Lawson Solderless connectors
FR1236326A (en) * 1959-09-21 1960-07-15 Low frequency amplifier device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493817A (en) * 1968-09-09 1970-02-03 Gen Electric Relay center with staggered relays
US3758828A (en) * 1972-02-29 1973-09-11 Gen Electric Relay center for remote control wiring system
US4697223A (en) * 1980-03-24 1987-09-29 Heinz Grunst Electrical apparatus, particularly apparatus for installation
US4460883A (en) * 1981-03-25 1984-07-17 U.S. Philips Corporation Stabilization ballast for operating a gas and/or vapor discharge lamp
US4794490A (en) * 1987-09-23 1988-12-27 Epstein Barry M Heavy-duty cable termination system
DE19654611B4 (en) * 1996-12-20 2004-09-30 Wago Verwaltungsgesellschaft Mbh Spring clamp connection for electrical conductors
EP0898325A1 (en) * 1997-08-14 1999-02-24 PHOENIX CONTACT GmbH & Co. Electrical spring force terminal

Similar Documents

Publication Publication Date Title
US2186813A (en) Circuit interrupting and protecting device
US3218519A (en) Protective device panel assembly
US2883587A (en) Circuit breaker panels
US3263131A (en) Electric power busway with plug-in branch circuit takeoff
US3479563A (en) Transformer with fuse
US3207955A (en) Compartmented switch box with a terminal board and bus bars mounted on opposite sides of the partition
US2317710A (en) Branch box connector
US2641636A (en) Bus duct and plug-in unit
US2289122A (en) Electric circuit controlling device
US3229066A (en) Center-fed fusible busway plug
US2059987A (en) Electrical distribution system
US2696533A (en) Bus bar duct system and attachment
US3165574A (en) Insulating and/or dust cover for switches
JPS644402B2 (en)
US3244941A (en) Mounting means for electromagnetic devices
US2038107A (en) Electrical connection for bus bars
US2192587A (en) Bus bar distribution system
US3333157A (en) Plug-in type control device panel assembly with angularly contrasting contact portions
US2960674A (en) Multiphase power distributing apparatus
US2150963A (en) Barrier for bus ducts
US2970245A (en) Bus duct structures for electrical distribution systems
IE53591B1 (en) An electrical interconnector
US2161571A (en) Bus bar conduit system
US3020373A (en) Load distributing arrangement for pull-out type switches
US2980824A (en) Load distributing arrangement