CA2023372C - Terminated inductive assembly and method of mounting same - Google Patents
Terminated inductive assembly and method of mounting sameInfo
- Publication number
- CA2023372C CA2023372C CA002023372A CA2023372A CA2023372C CA 2023372 C CA2023372 C CA 2023372C CA 002023372 A CA002023372 A CA 002023372A CA 2023372 A CA2023372 A CA 2023372A CA 2023372 C CA2023372 C CA 2023372C
- Authority
- CA
- Canada
- Prior art keywords
- support
- opening
- assembly
- bore
- end part
- 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
Links
- 230000001939 inductive effect Effects 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000000638 solvent extraction Methods 0.000 claims 8
- 239000004020 conductor Substances 0.000 abstract description 26
- 230000000712 assembly Effects 0.000 description 8
- 238000000429 assembly Methods 0.000 description 8
- 238000005192 partition Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 244000090125 Solidago odora Species 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- PHTXVQQRWJXYPP-UHFFFAOYSA-N ethyltrifluoromethylaminoindane Chemical compound C1=C(C(F)(F)F)C=C2CC(NCC)CC2=C1 PHTXVQQRWJXYPP-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase AC
- H01F38/28—Current transformers
- H01F38/30—Constructions
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
INDUCTIVE COIL ASSEMBLY
AND METHOD OF MOUNTING SAME
ABSTRACT
The present invention relates to an inductive coil assembly provided with means for securing the assembly to a support. The assembly generally comprises a coil-shell body provided with a body opening through which a current carrying element (i.e. conductor) may be inserted. A securing means such as a screw or the like may be provided within the coil-shell body for securing same to a support. In a preferred embodiment, a conductor itself is used as a support. However, the assembly may be placed around a conductor and secured by the securing means in accordance with the present invention to a non-conductive support.
AND METHOD OF MOUNTING SAME
ABSTRACT
The present invention relates to an inductive coil assembly provided with means for securing the assembly to a support. The assembly generally comprises a coil-shell body provided with a body opening through which a current carrying element (i.e. conductor) may be inserted. A securing means such as a screw or the like may be provided within the coil-shell body for securing same to a support. In a preferred embodiment, a conductor itself is used as a support. However, the assembly may be placed around a conductor and secured by the securing means in accordance with the present invention to a non-conductive support.
Description
FIELD OF THE INYENTION
The present invention relates to an inductive coil assembly to be mounted around a current carrying element (i.e. conductor) to form a transformer and more particularly to securing means for securing such an assembly to a support.
~ESÇ$IpTI~N OF P~IOR AR~
An inductive coil assembly is usually mounted around a current carrying element (for example, a conductive bar) by means of plates secured to the flanges of the inductive coil assembly. These plates are commonly welded, screwed or bolted to same.
Since the securing plates remain outside the inductive coil assembly, more space is necessary on a conductive bar due to the area taken by the securing plates. Thus, for a give space on a conductive bar fewer coils can be installed. One can easily appreciate the disadvantages both in terms of weight and volume.
In addition, the securing plates have the tendency to break from the inductive coil due to the mechanical stress caused by the Ka.
20U.S patent no.: 4.263.479 (Lange et al) presents a terminated inductive coil having two (2) windings and provided with mounting means to facilitate assembly of same. By installing the mounting means outside the inductive coil, more weight is added to the assembly.
U.S. patent no.: 3.146.053 (Strock) discloses a inductive coil mounted to a conductor by self-tapping screws. This way of installing the inductive coil is obviously not adequate for the purposes contemplated by the present invention, thus, more weight is added to the inductive coil. Moreover, by installing a screw on each side of the winding, one will be faced with the problems described earlier, that is, excess of weight and loss of space.
OBJECTS OF TNE PRESENT INVENTION
It is a general object of the present invention to provide securing means for an inductive coil assembly which will overcome the above mentioned drawbacks.
: - .
;
. . .
2()23372 It is an object of the present invention is to provide an inductive coil assembly having special securing means and which will be easy to manufacture.
Yet another object of the present invention is to provide a novel and useful construction for an inductive coil assembly which is more economical and more reliable than prior art devices.
Still another object of the present invention is to provide a method of assembling an inductive coil assembly on a conductor and which is most efficient and less costly than has been possible with prior art methods.
Another of the present invention is to provide an inductive coil assembly of the type generally described and which will be easy to manipulate.
SUHHARY OF THE PRESENT INVENTION
A particular feature of the invention resides in the provision of securing means for an inductive coil assembly which will help the mounting of same to a support (for example, a conductor itself). Thus, by placing securing means inside the coil-shell body of an inductive coil assembly (as shall be described herein), less space is necessary for a given number of coils to be mounted to a non-conductive or conductive support. The securing means may include elements such as a screws, bolts or the like.
~ herefore, the present invention, in general, provides an inductive coil assembly mountable on a support, said assembly having a coil-shell body and a body opening said body opening extending through said coil-shell body for receiving therethrough a current carrying element, said current carrying element defining a primary coil element, said coil-shell body comprising a secondary coil element and an insulating shell enclosing said secondary coil element, .
' ' , 2(J23372 a portion of said shell being disposed within an opening in said secondary coil element, said portion of said shell defining said body opening, and being characterized in that said body opening is configured to receive said support and said assembly has securing means for securing said assembly to said support, said securing means being disposed within said body opening.
In accordance with the present invention the securing means may, for example, comprise one or two brace members which are secured to the shell portion which defines the body opening. ~he brace members may partition the body opening into a number of sub-openings. Thus if one brace member is present the body opening may be partitioned into first and second openings whereas if two brace members are present the body opening may be partitioned into three sub-openings, namely two side openings and a middle opening disposed therebetween. In accordance with the present invention the support may comprise the current carrying element; in this case the support may be receivable in the second such sub-opening or in the middle opening as the case may be. Alternatively, if desired, a separate support and a separate current carrying element may used wherein both may be receivable in the second opening referred to above.
In accordance with the present invention the securing means may also include abutment means for abutting engagement of the support. Such abutment means may, for example, be disposed in the second sub-opening when the securing means compri#e a brace member.
In accordance with the present invention the securing means may also include one or more clamp elements. A clamp element may have a head part and an end part and be provided with a central stem section (e.g. rod) which spaces apart the head part and the end part. A screw clamp element may, in particular, have a head part, an end part as well as a central screw threaded section which spaces apart the head part and the end part.
In accordance with the present invention the brace member(s) ~ ~ , , .i may be provided with a bore for engaging the stem section of a clamp element. Thus, brace member(s) may be provided with a bore for engaging the screw threaded section of a (respective) screw clamp element.
The securing means may, for example, include - a brace member which partitions the body opening into first and second openings wherein the brace member may be provided with a bore for engaging the stem section of a clamp element as mentioned above and wherein the clamp element is capable of being inserted into or out of the bore by displacement of the head part thereof in the first opening and the clamp element is capable of being inserted into the bore such that the end part thereof will engage with a hole in the support for securing said assembly to a support receivable in the second opening.
In accordance with the present invention the securing means may, for example, include - a brace member which partitions the body opening into first and second openings and - abutment means disposed in the second opening, wherein the brace member may be provided with a bore for engaging the screw threaded section of a screw clamp element as referred to above and wherein the screw clamp element is capable of being threaded into or out of the bore by rotation of the head part in the first opening and the screw clamp element is capable of being threaded into the bore such that the end part will urge the support into abutting engagement with the abutment means for securing the assembly to a support receivable in the second opening.
Alternatively, the securing means may, for example, include - two brace members which partition the body opening into two side openings and a middle opening disposed therebetween, wherein the brace members may each be provided with a bore for :~ .
.
engaging the screw threaded section of a respective screw clamp element as referred to above and wherein each screw clamp element is capable of being threaded into or out of a respective bore by rotation of the head part in a respective side opening and each screw clamp element is capable of being threaded into a respective bore such that the end part thereof will urge the support into engagement with the end part of the other screw clamp elemen~ for securing the assembly to a support receivable in the middle opening.
In accordance with a further aspect the present invention provides a method for mounting an inductive coil assembly to a support and associating the assembly with a current carrying element, the current carrying element defining a primary coil element, the inductive coil assembly have the structure as herein described, the method comprising:
- introducing the current carrying element into the body opening, - introducing the support into the body opening configured to receive the support, and - securing the assembly to the support by the securing means disposed within the body opening.
D~SCRI~TIO~ OF pRAwI~GS
~ he foregoing objects, features and advantages of the present invention will become more apparent from the detailed description of example embodiments of the present invention hereinafter considered in conjunction with the accompanying drawings wherein:
Figure 1 is an elevational view of a prior art inductive coil assembly, Figure lA is a right side view of the inductive coil assembly shown in figure 1 secured to a support, Figure 2 is an elevational view of another prior art inductive , .
.
-7 _ 20233 ~2 coil assembly secured to a support, Figure 2A is a right side view of the inductive coil assembly shown in ~igure 2, Figure 3 is an elevational view of an embodiment of an inductive coil assembly in accordance to the present invention, Figure 4 is a right side view of the inductive coil assem~ly shown in figure 3, Figure 5 is a perspective view of a cluster of three (3) inductive coil assemblies as shown in figure 3.
Figure 6 is a perspective mirror view of the inductive coil assembly shown in figure 3 and which incorporates a conductor-support, Figure 7 is an elevational view of a second embodiment of an inductive coil assembly in accordance with the present invention, Figure 8 is a right side view of the inductive coil assembly shown figure 7, Figure 9 is an elevational view of a third embodiment of an inductive coil assembly in accordance of the present 20invention, Figure 10 is an elevational view of a fourth embodiment of an inductive coil assembly in accordance to the present invention, Figure 11 is an elevational view of the inductive coil assembly shown in figure 3 and which incorporates a separate conductor and a separate support, Figure 12 is a perspective view of a further embodiment of an inductive coil assembly in accordance with the present invention which incorporates an alternate securing means.
30~ETAI~E~ ~ESCRIPTION OF_r~E PREFERRED EMBODIMENTS
With respect to the drawings, like numerals will re~er to like parts in so far as possible.
Figure 1 illustrates a prior art configuration of an inductive coil assembly. The inductive coil assembly is designated generally by the reference number 1 and has a generally square aspect. The ... . .
::~ ' , ,, inductive coil assembly 1 comprises a body opening 2 for receiving a current carrying element (i.e. a conductor); as shown the body opening 2 acco~modates a conductor 3. The upper section of the inductive coil assembly 1 includes terminals 4 which terminate the winding (not shown) of the secondary coil element thereof.
Referring to figures 1 and lA, the inductive coil assembly 1 is provided with securing means which includes four (4) holes, each of which is designated by the reference number 5. The securing means also includes a corresponding number of screw means, two of which are identified by the reference number 6 (the screw means may take the form of screws or bolts) . As seen from figure lA the screw means 6 are receivable in the holes 5 for securing or fixing the inductive coil assembly to a support 7 such as a wall.
Turning to figures 2 and 2A, these figures illustrate another prior art configuration for an inductive coil assembly. The inductive coil assembly designated generally by the reference number 8 comprises the same basic elements as the assembly illustrated in figures 1 and lA. Thus the inductive coil assembly 8 has a body opening 9. The securing means for this configuration however, includes a plate 10 which is secured to the inductive coil assembly 8. Plate 10 is secured to the support 11.
Having described several prior art inductive coil assemblies, example embodiments of inductive coil assemblies in accordance with the present invention will now be described. The assemblies described hereinafter unless otherwise indicated are intended to be mounted on a support which comprises a conductor. Accordingly, for the following particular description, unless indicated to the contrary, a reference to a conductor is to be understood as being a reference to a conductor-support.
Turning to figures 3 and 4, the inductive coil assembly is designated generally by the reference number 12.
The inductive coil assembly 12 has a coil-shell body which comprises a secondary coil element including a winding (not shown) and a shell 13. The shell 13 is made of an insulating material such as epoxy or injected plastic or even a plastic casing. The plastic casing would comprise a male and a female portions enclosing the winding. Those portions may be manufactured independently. The winding of the secondary coil element is terminated by the terminals designated by the reference number 14.
The terminals 14 are shown as including a set of screws.
The body opening of the inductive coil assembly 12 has disposed therein securing means which includes a brace member designated generally by the reference number 15 (e.g. a bridge-like support). The brace member lS is secured at its ends to the portion of the shell which defines the body opening of the inductive coil assembly 12. The brace member 15 is provided with a bore for engagement with a screw clamp element generally indicated by the reference numeral 16. The screw clamp element 16 which forms part of the means for securing the assembly 12 to a conductor, has the aspect of a bolt and has a head part 17, an end part (in the bore) and a screw threaded section 18.
The brace member 15 partitions the body opening of the inductive coil assembly into a first opening indicated generally by the reference numeral 19 and a second opening. The second opening itself comprises a first portion 20a and a second portion 20b.
As can be seen from figure 3 the head part 17 is disposed in the first opening 19 for rotation therein.
The opening 20a is configured to receive a conductor of rectangular cross section; however, it is to be understood that any other shape can possibly be used for the same purpose. Abutment shoulders 21a and 21b are also disposed in the opening 20a.
The opening 20b is provided so as to improve heat dissipating through the secondary coil element of tbe inductive coil assembly.
In the embodiment shown in figure 3, the securing means is shown as comprising only one screw clamp element 16. However, depending on different factors such as the weight of the inductive coil assembly and the mechanical stress that the inductive coil assembly must withstand, the brace member 15 may have two or more bores for engagement with two (2) or more respective screw clamp elements.
.
-lO- 2023372 Figure 5 shows a cluster of three (3) inductive coil assemblies without conductors disposed in opening 20a. Due to the rounded sides of the inductive coil assemblies, it is possible to place same side by side without losing space.
Figure 6, shows a conductor 22 disposed in the opening 20a.
The shape of opening 20a and the cross sectional shape of the conductor 22 are complimentary. However, other shapes for the opening 20a and conductor 22 are possible. The conductor 22 is secured to the assembly 12 by rotation of the head part 17 in the first opening 19 whereby the end part of the screw clamp element 16 urges the conductor 22 into abutting engagement with the abutment shoulders 21a and 21b.
Figures 7 and 8 illustrate another embodiment of the present invention, wherein the body opening of the inductive coil assembly has disposed therein securing means which includes two brace members 23 and 24. The brace members 23 and 24 have the same aspect as brace member lS; thus they are provided with respective bores for engagement of respective screw clamp elements 16. The brace members partition the body opening into side openings 25 and 26 as well as middle opening 27. The opening 27 can receive a conductor such as conductor 22 shown in figure 6. The assembly is secured to a conductor by rotation of the respective head parts of the screw clamp elements in respective side openings 25 and 26 such that the end parts thereof abut against the conductor to secure it in place.
The inductive coil assembly may have a coil-shell body having another shape~ Figures 9 and 10 illustrate inductive coil assemblies wherein the coil-shell body has an exterior shape which is rectangular. Apart from the exterior shape, however, the assemblies shown have the same elements as the embodiments illustrated in figures 3 and 7 respectively; thus, the embodiment shown in figure 9 has a single brace member 15 while the embodiment shown in figure 10 has two brace member~ 23 and 24.
In relation to the embodiments shown in figures 3 to 10, the conductor 22 (see figure 6) was shown as doubling for the support -11- 2(~2.~3~2 to hold the inductive coil assembly in place. However, in accordance with the present invention it is possible to secure an inductive coil assembly by means of the securing means to a separate non-conductive support. Thus, as shown in figure 11, an assembly as illustrated in figure 3 may, in accordance with the present invention, be used to secure the inductive coil assembly by means of the securing means to a separate non-conductive support 28; in such case, it would be possible to introduce a separate (flexible) conductor 29 into the opening 20b.
It is considered to be within the scope of my invention to replace the screw clamp element 16 by another securing means.
Thus, for example, with reference to figure 12, an assembly 30 is shown which differs from the one shown in figure 3 in that the brace member 31 is provided with a bore for engagement with a clamp element indicated generally by the reference numeral 32. The clamp element 32 which forms part of the means for securing the assembly to a conductor-support 33, has a head part 34, an end part and a stem (e.g. rod) part 35. The conductor-support 33 is provided with holes two of which are indicated by the reference number 36.
The conductor-support 32 is secured to the assembly 30 by displacement of the head part 34 in the first opening 19 whereby the end part of the clamp element 32 engages a hole 36 in the conductor-support 33 for securing the assembly 30 to the conductor-support 33. The conductor-support 33 could of course be adapted to be used with the assembly shown in figure 3.
The foregoing is considered to be only exemplary of my invention. While the applicant has shown and described the preferred embodiments of the invention, it will be apparent to those skilled in the art that there are various modifications, changes and improvements which may be made without departing from the spirit and scope of the invention.
The present invention relates to an inductive coil assembly to be mounted around a current carrying element (i.e. conductor) to form a transformer and more particularly to securing means for securing such an assembly to a support.
~ESÇ$IpTI~N OF P~IOR AR~
An inductive coil assembly is usually mounted around a current carrying element (for example, a conductive bar) by means of plates secured to the flanges of the inductive coil assembly. These plates are commonly welded, screwed or bolted to same.
Since the securing plates remain outside the inductive coil assembly, more space is necessary on a conductive bar due to the area taken by the securing plates. Thus, for a give space on a conductive bar fewer coils can be installed. One can easily appreciate the disadvantages both in terms of weight and volume.
In addition, the securing plates have the tendency to break from the inductive coil due to the mechanical stress caused by the Ka.
20U.S patent no.: 4.263.479 (Lange et al) presents a terminated inductive coil having two (2) windings and provided with mounting means to facilitate assembly of same. By installing the mounting means outside the inductive coil, more weight is added to the assembly.
U.S. patent no.: 3.146.053 (Strock) discloses a inductive coil mounted to a conductor by self-tapping screws. This way of installing the inductive coil is obviously not adequate for the purposes contemplated by the present invention, thus, more weight is added to the inductive coil. Moreover, by installing a screw on each side of the winding, one will be faced with the problems described earlier, that is, excess of weight and loss of space.
OBJECTS OF TNE PRESENT INVENTION
It is a general object of the present invention to provide securing means for an inductive coil assembly which will overcome the above mentioned drawbacks.
: - .
;
. . .
2()23372 It is an object of the present invention is to provide an inductive coil assembly having special securing means and which will be easy to manufacture.
Yet another object of the present invention is to provide a novel and useful construction for an inductive coil assembly which is more economical and more reliable than prior art devices.
Still another object of the present invention is to provide a method of assembling an inductive coil assembly on a conductor and which is most efficient and less costly than has been possible with prior art methods.
Another of the present invention is to provide an inductive coil assembly of the type generally described and which will be easy to manipulate.
SUHHARY OF THE PRESENT INVENTION
A particular feature of the invention resides in the provision of securing means for an inductive coil assembly which will help the mounting of same to a support (for example, a conductor itself). Thus, by placing securing means inside the coil-shell body of an inductive coil assembly (as shall be described herein), less space is necessary for a given number of coils to be mounted to a non-conductive or conductive support. The securing means may include elements such as a screws, bolts or the like.
~ herefore, the present invention, in general, provides an inductive coil assembly mountable on a support, said assembly having a coil-shell body and a body opening said body opening extending through said coil-shell body for receiving therethrough a current carrying element, said current carrying element defining a primary coil element, said coil-shell body comprising a secondary coil element and an insulating shell enclosing said secondary coil element, .
' ' , 2(J23372 a portion of said shell being disposed within an opening in said secondary coil element, said portion of said shell defining said body opening, and being characterized in that said body opening is configured to receive said support and said assembly has securing means for securing said assembly to said support, said securing means being disposed within said body opening.
In accordance with the present invention the securing means may, for example, comprise one or two brace members which are secured to the shell portion which defines the body opening. ~he brace members may partition the body opening into a number of sub-openings. Thus if one brace member is present the body opening may be partitioned into first and second openings whereas if two brace members are present the body opening may be partitioned into three sub-openings, namely two side openings and a middle opening disposed therebetween. In accordance with the present invention the support may comprise the current carrying element; in this case the support may be receivable in the second such sub-opening or in the middle opening as the case may be. Alternatively, if desired, a separate support and a separate current carrying element may used wherein both may be receivable in the second opening referred to above.
In accordance with the present invention the securing means may also include abutment means for abutting engagement of the support. Such abutment means may, for example, be disposed in the second sub-opening when the securing means compri#e a brace member.
In accordance with the present invention the securing means may also include one or more clamp elements. A clamp element may have a head part and an end part and be provided with a central stem section (e.g. rod) which spaces apart the head part and the end part. A screw clamp element may, in particular, have a head part, an end part as well as a central screw threaded section which spaces apart the head part and the end part.
In accordance with the present invention the brace member(s) ~ ~ , , .i may be provided with a bore for engaging the stem section of a clamp element. Thus, brace member(s) may be provided with a bore for engaging the screw threaded section of a (respective) screw clamp element.
The securing means may, for example, include - a brace member which partitions the body opening into first and second openings wherein the brace member may be provided with a bore for engaging the stem section of a clamp element as mentioned above and wherein the clamp element is capable of being inserted into or out of the bore by displacement of the head part thereof in the first opening and the clamp element is capable of being inserted into the bore such that the end part thereof will engage with a hole in the support for securing said assembly to a support receivable in the second opening.
In accordance with the present invention the securing means may, for example, include - a brace member which partitions the body opening into first and second openings and - abutment means disposed in the second opening, wherein the brace member may be provided with a bore for engaging the screw threaded section of a screw clamp element as referred to above and wherein the screw clamp element is capable of being threaded into or out of the bore by rotation of the head part in the first opening and the screw clamp element is capable of being threaded into the bore such that the end part will urge the support into abutting engagement with the abutment means for securing the assembly to a support receivable in the second opening.
Alternatively, the securing means may, for example, include - two brace members which partition the body opening into two side openings and a middle opening disposed therebetween, wherein the brace members may each be provided with a bore for :~ .
.
engaging the screw threaded section of a respective screw clamp element as referred to above and wherein each screw clamp element is capable of being threaded into or out of a respective bore by rotation of the head part in a respective side opening and each screw clamp element is capable of being threaded into a respective bore such that the end part thereof will urge the support into engagement with the end part of the other screw clamp elemen~ for securing the assembly to a support receivable in the middle opening.
In accordance with a further aspect the present invention provides a method for mounting an inductive coil assembly to a support and associating the assembly with a current carrying element, the current carrying element defining a primary coil element, the inductive coil assembly have the structure as herein described, the method comprising:
- introducing the current carrying element into the body opening, - introducing the support into the body opening configured to receive the support, and - securing the assembly to the support by the securing means disposed within the body opening.
D~SCRI~TIO~ OF pRAwI~GS
~ he foregoing objects, features and advantages of the present invention will become more apparent from the detailed description of example embodiments of the present invention hereinafter considered in conjunction with the accompanying drawings wherein:
Figure 1 is an elevational view of a prior art inductive coil assembly, Figure lA is a right side view of the inductive coil assembly shown in figure 1 secured to a support, Figure 2 is an elevational view of another prior art inductive , .
.
-7 _ 20233 ~2 coil assembly secured to a support, Figure 2A is a right side view of the inductive coil assembly shown in ~igure 2, Figure 3 is an elevational view of an embodiment of an inductive coil assembly in accordance to the present invention, Figure 4 is a right side view of the inductive coil assem~ly shown in figure 3, Figure 5 is a perspective view of a cluster of three (3) inductive coil assemblies as shown in figure 3.
Figure 6 is a perspective mirror view of the inductive coil assembly shown in figure 3 and which incorporates a conductor-support, Figure 7 is an elevational view of a second embodiment of an inductive coil assembly in accordance with the present invention, Figure 8 is a right side view of the inductive coil assembly shown figure 7, Figure 9 is an elevational view of a third embodiment of an inductive coil assembly in accordance of the present 20invention, Figure 10 is an elevational view of a fourth embodiment of an inductive coil assembly in accordance to the present invention, Figure 11 is an elevational view of the inductive coil assembly shown in figure 3 and which incorporates a separate conductor and a separate support, Figure 12 is a perspective view of a further embodiment of an inductive coil assembly in accordance with the present invention which incorporates an alternate securing means.
30~ETAI~E~ ~ESCRIPTION OF_r~E PREFERRED EMBODIMENTS
With respect to the drawings, like numerals will re~er to like parts in so far as possible.
Figure 1 illustrates a prior art configuration of an inductive coil assembly. The inductive coil assembly is designated generally by the reference number 1 and has a generally square aspect. The ... . .
::~ ' , ,, inductive coil assembly 1 comprises a body opening 2 for receiving a current carrying element (i.e. a conductor); as shown the body opening 2 acco~modates a conductor 3. The upper section of the inductive coil assembly 1 includes terminals 4 which terminate the winding (not shown) of the secondary coil element thereof.
Referring to figures 1 and lA, the inductive coil assembly 1 is provided with securing means which includes four (4) holes, each of which is designated by the reference number 5. The securing means also includes a corresponding number of screw means, two of which are identified by the reference number 6 (the screw means may take the form of screws or bolts) . As seen from figure lA the screw means 6 are receivable in the holes 5 for securing or fixing the inductive coil assembly to a support 7 such as a wall.
Turning to figures 2 and 2A, these figures illustrate another prior art configuration for an inductive coil assembly. The inductive coil assembly designated generally by the reference number 8 comprises the same basic elements as the assembly illustrated in figures 1 and lA. Thus the inductive coil assembly 8 has a body opening 9. The securing means for this configuration however, includes a plate 10 which is secured to the inductive coil assembly 8. Plate 10 is secured to the support 11.
Having described several prior art inductive coil assemblies, example embodiments of inductive coil assemblies in accordance with the present invention will now be described. The assemblies described hereinafter unless otherwise indicated are intended to be mounted on a support which comprises a conductor. Accordingly, for the following particular description, unless indicated to the contrary, a reference to a conductor is to be understood as being a reference to a conductor-support.
Turning to figures 3 and 4, the inductive coil assembly is designated generally by the reference number 12.
The inductive coil assembly 12 has a coil-shell body which comprises a secondary coil element including a winding (not shown) and a shell 13. The shell 13 is made of an insulating material such as epoxy or injected plastic or even a plastic casing. The plastic casing would comprise a male and a female portions enclosing the winding. Those portions may be manufactured independently. The winding of the secondary coil element is terminated by the terminals designated by the reference number 14.
The terminals 14 are shown as including a set of screws.
The body opening of the inductive coil assembly 12 has disposed therein securing means which includes a brace member designated generally by the reference number 15 (e.g. a bridge-like support). The brace member lS is secured at its ends to the portion of the shell which defines the body opening of the inductive coil assembly 12. The brace member 15 is provided with a bore for engagement with a screw clamp element generally indicated by the reference numeral 16. The screw clamp element 16 which forms part of the means for securing the assembly 12 to a conductor, has the aspect of a bolt and has a head part 17, an end part (in the bore) and a screw threaded section 18.
The brace member 15 partitions the body opening of the inductive coil assembly into a first opening indicated generally by the reference numeral 19 and a second opening. The second opening itself comprises a first portion 20a and a second portion 20b.
As can be seen from figure 3 the head part 17 is disposed in the first opening 19 for rotation therein.
The opening 20a is configured to receive a conductor of rectangular cross section; however, it is to be understood that any other shape can possibly be used for the same purpose. Abutment shoulders 21a and 21b are also disposed in the opening 20a.
The opening 20b is provided so as to improve heat dissipating through the secondary coil element of tbe inductive coil assembly.
In the embodiment shown in figure 3, the securing means is shown as comprising only one screw clamp element 16. However, depending on different factors such as the weight of the inductive coil assembly and the mechanical stress that the inductive coil assembly must withstand, the brace member 15 may have two or more bores for engagement with two (2) or more respective screw clamp elements.
.
-lO- 2023372 Figure 5 shows a cluster of three (3) inductive coil assemblies without conductors disposed in opening 20a. Due to the rounded sides of the inductive coil assemblies, it is possible to place same side by side without losing space.
Figure 6, shows a conductor 22 disposed in the opening 20a.
The shape of opening 20a and the cross sectional shape of the conductor 22 are complimentary. However, other shapes for the opening 20a and conductor 22 are possible. The conductor 22 is secured to the assembly 12 by rotation of the head part 17 in the first opening 19 whereby the end part of the screw clamp element 16 urges the conductor 22 into abutting engagement with the abutment shoulders 21a and 21b.
Figures 7 and 8 illustrate another embodiment of the present invention, wherein the body opening of the inductive coil assembly has disposed therein securing means which includes two brace members 23 and 24. The brace members 23 and 24 have the same aspect as brace member lS; thus they are provided with respective bores for engagement of respective screw clamp elements 16. The brace members partition the body opening into side openings 25 and 26 as well as middle opening 27. The opening 27 can receive a conductor such as conductor 22 shown in figure 6. The assembly is secured to a conductor by rotation of the respective head parts of the screw clamp elements in respective side openings 25 and 26 such that the end parts thereof abut against the conductor to secure it in place.
The inductive coil assembly may have a coil-shell body having another shape~ Figures 9 and 10 illustrate inductive coil assemblies wherein the coil-shell body has an exterior shape which is rectangular. Apart from the exterior shape, however, the assemblies shown have the same elements as the embodiments illustrated in figures 3 and 7 respectively; thus, the embodiment shown in figure 9 has a single brace member 15 while the embodiment shown in figure 10 has two brace member~ 23 and 24.
In relation to the embodiments shown in figures 3 to 10, the conductor 22 (see figure 6) was shown as doubling for the support -11- 2(~2.~3~2 to hold the inductive coil assembly in place. However, in accordance with the present invention it is possible to secure an inductive coil assembly by means of the securing means to a separate non-conductive support. Thus, as shown in figure 11, an assembly as illustrated in figure 3 may, in accordance with the present invention, be used to secure the inductive coil assembly by means of the securing means to a separate non-conductive support 28; in such case, it would be possible to introduce a separate (flexible) conductor 29 into the opening 20b.
It is considered to be within the scope of my invention to replace the screw clamp element 16 by another securing means.
Thus, for example, with reference to figure 12, an assembly 30 is shown which differs from the one shown in figure 3 in that the brace member 31 is provided with a bore for engagement with a clamp element indicated generally by the reference numeral 32. The clamp element 32 which forms part of the means for securing the assembly to a conductor-support 33, has a head part 34, an end part and a stem (e.g. rod) part 35. The conductor-support 33 is provided with holes two of which are indicated by the reference number 36.
The conductor-support 32 is secured to the assembly 30 by displacement of the head part 34 in the first opening 19 whereby the end part of the clamp element 32 engages a hole 36 in the conductor-support 33 for securing the assembly 30 to the conductor-support 33. The conductor-support 33 could of course be adapted to be used with the assembly shown in figure 3.
The foregoing is considered to be only exemplary of my invention. While the applicant has shown and described the preferred embodiments of the invention, it will be apparent to those skilled in the art that there are various modifications, changes and improvements which may be made without departing from the spirit and scope of the invention.
Claims (11)
1. An inductive coil assembly mountable on a support, said assembly having a coil-shell body and a body opening said body opening extending through said coil-shell body for receiving therethrough a current carrying element, said current carrying element defining a primary coil element, said coil-shell body comprising a secondary coil element and an insulating shell enclosing said secondary coil element, a portion of said shell being disposed within an opening in said secondary coil element, said portion of said shell defining said body opening, and being characterized in that said body opening is configured to receive said support and said assembly has securing means for securing said assembly to said support, said securing means being disposed within said body opening.
2. An inductive coil assembly as defined in claim 1 characterized in that said support comprises said current carrying element.
3. An inductive coil assembly as defined in claim 2 characterized in that said securing means comprises a brace member secured to said shell portion defining said body opening and abutment means for abutting engagement of said support, said brace member partitioning said body opening into first and second openings, said support being receivable in said second opening, said abutment means being disposed in said second opening, said brace member being provided with a bore for engaging the screw threaded section of a screw clamp element, said screw clamp element having a head part and an end part, said head part and said end part being spaced apart by said screw threaded section, said screw clamp element being capable of being threaded into or out of said bore by rotation of said head part in said first opening and said screw clamp element being capable of being threaded into said bore such that said end part will urge said support into abutting engagement with said abutment means for securing said assembly to said support.
4. An inductive coil assembly as defined in claim 2 characterized in that said securing means comprises a brace member secured to said shell portion defining said body opening, a screw clamp element having a head part and an end part, said head part and said end part being spaced apart by a screw threaded section and abutment means for abutting engagement of said support, said brace member partitioning said body opening into first and second openings, said support being receivable in said second opening, said abutment means being disposed in said second opening, said brace member being provided with a bore for engaging the screw threaded section of said screw clamp element, said screw clamp element being capable of being threaded into or out of said bore by rotation of said head part in said first opening and said screw clamp element being capable of being threaded into said bore such that said end part will urge said support into abutting engagement with said abutment means for securing said assembly to said support.
5. An inductive coil assembly as defined in claim 2 characterized in that said securing means comprises two brace members secured to said shell portion defining said body opening, said brace members partitioning said body opening into two side openings and a middle opening, said middle opening being disposed between said side openings, said support being receivable in said middle opening, said brace members each being provided with a bore for engaging the screw threaded section of a respective screw clamp element, each said screw clamp element having a head part and an end part, said head part and said end part being spaced apart by said screw threaded section, said screw clamp elements each being capable of being threaded into or out of a respective bore by rotation of said head part in a respective side opening and said screw clamp elements each being capable of being threaded into a respective bore such that a respective end part thereof will urge said support into engagement with the end part of the other screw clamp element for securing said assembly to said support.
6. An inductive coil assembly as defined in claim 2 characterized in that said securing means comprises two brace members secured to said shell portion defining said body opening and two screw clamp elements, each said screw clamp element having a head part and an end part, said head part and said end part being spaced apart by a screw threaded section, said brace members partitioning said body opening into two side openings and a middle opening, said middle opening being disposed between said side openings, said support being receivable in said middle opening, said brace members each being provided with a bore for engaging the screw threaded section of a respective screw clamp element, said screw clamp elements each being capable of being threaded into or out of a respective bore by rotation of said head part in a respective side opening and said screw clamp elements each being capable of being threaded into a respective bore such that a respective end part thereof will urge said support into abutting engagement with the end part of the other screw clamp element for securing said assembly to said support.
7. An inductive coil assembly as defined in claim 1 characterized in that said securing means comprises a brace member secured to said shell portion defining said body opening and abutment means for abutting engagement of said support, said brace member partitioning said body opening into first and second openings, said current carrying element and said support both being receivable in said second opening, said abutment means being disposed in said second opening, said brace member being provided with a bore for engaging the screw threaded section of a screw clamp element, said screw clamp element having a head part and an end part, said head part and said end part being spaced apart by said screw threaded section, said screw clamp element being capable of being threaded into or out of said bore by rotation of said head part in said first opening and said screw clamp element being capable of being threaded into said bore such that said end part will urge said support into abutting engagement with said abutment means for securing said assembly to said support.
8. An inductive coil assembly as defined in claim 1 characterized in that said securing means comprises a brace member secured to said shell portion defining said body opening, a screw clamp element having a head part and an end part, said head part and said end part being spaced apart by a screw threaded section, and abutment means for abutting engagement of said support, said brace member partitioning said body opening into first and second openings, said current carrying element and said support both being receivable in said second opening, said abutment means being disposed in said second opening, said brace member being provided with a bore for engaging the screw threaded section of a screw clamp element, said screw clamp element being capable of being threaded into or out of said bore by rotation of said head part in said first opening and said screw clamp element being capable of being threaded into said bore such that said end part will urge said support into abutting engagement with said abutment means for securing said assembly to said support.
9. An inductive coil assembly as defined in claim 2 characterized in that said securing means comprises a brace member secured to said shell portion defining said body opening, said brace member partitioning said body opening into first and second openings, said support being receivable in said second opening, said brace member being provided with a bore for engaging the stem section of a clamp element, said clamp element having a head part and an end part, said head part and said end part being spaced apart by said stem section, said clamp element being capable of being inserted into or out of said bore by displacement of said head part in said first opening and said clamp element being capable of being inserted into said bore such that said end part will engage with a hole in said support for securing said assembly to said support.
10. An inductive coil assembly as defined in claim 2 characterized in that said securing means comprises a brace member secured to said shell portion defining said body opening and a clamp element having a head part and an end part, said head part and said end part being spaced apart by a stem section, said brace member partitioning said body opening into first and second openings, said support being receivable in said second opening, said brace member being provided with a bore for engaging the stem section of said clamp element, said clamp element being capable of being inserted into or out of said bore by displacement of said head part in said first opening and said clamp element being capable of being inserted into said bore such that said end part will engage with a hole in said support for securing said assembly to said support.
11. A method for mounting an inductive coil assembly to a support and associating said assembly with a current carrying element, said current carrying element defining a primary coil element, said inductive coil assembly being mountable on said support, said assembly having a coil-shell body and a body opening said body opening extending through said coil-shell body for receiving therethrough a current carrying element, said current carrying element defining a primary coil element, said coil-shell body comprising a secondary coil element and an insulating shell enclosing said secondary coil element, a portion of said shell being disposed within an opening in said secondary coil element, said portion of said shell defining said body opening, and being characterized in that said body opening is configured to receive said support and said assembly has securing means for securing said assembly to said support, said securing means being disposed within said body opening, and said method comprising:
- introducing said current carrying element into said body opening, - introducing said support into said body opening configured to receive said support, and - securing said assembly to said support by said securing means.
- introducing said current carrying element into said body opening, - introducing said support into said body opening configured to receive said support, and - securing said assembly to said support by said securing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002023372A CA2023372C (en) | 1990-08-15 | 1990-08-15 | Terminated inductive assembly and method of mounting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002023372A CA2023372C (en) | 1990-08-15 | 1990-08-15 | Terminated inductive assembly and method of mounting same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2023372A1 CA2023372A1 (en) | 1992-02-16 |
| CA2023372C true CA2023372C (en) | 1992-11-17 |
Family
ID=4145746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002023372A Expired - Lifetime CA2023372C (en) | 1990-08-15 | 1990-08-15 | Terminated inductive assembly and method of mounting same |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2023372C (en) |
-
1990
- 1990-08-15 CA CA002023372A patent/CA2023372C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2023372A1 (en) | 1992-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |