JP2008104256A - Supporting base - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate management by reducing the number of part items according to plate thicknesses of band-shaped conductors when integrally supporting a plurality of the band-shaped conductors. <P>SOLUTION: A fitting groove 20 to which the end of the band-shaped conductor in the width direction is fit is formed at a main body 16 of a supporting base 10. On three side faces 18A, 18B and 18C of the main body, there is formed a fitting groove 20A having a groove width DW<SB>1</SB>on the side face 18A, and on the side faces 18B, 18C, there are formed a fitting groove 20B having a groove width DW<SB>2</SB>and a fitting groove 20C having a groove width DW<SB>3</SB>, respectively. Furthermore, between the fitting grooves, there are formed a through hole 22A penetrating from the side face 18A to the side face 18C, and a through hole 22B penetrating from the side face 18B to a side face 18D. By this, the band-shaped conductors having three kinds of the plate thicknesses can be supported and fixed by arranging a pair of one kind of supporting bases so as to sandwich the band-shaped conductors. The number of kinds of components for use in supporting the band-shaped conductors different in thickness can be reduced, thus facilitating manufacturing and management. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a support base used for supporting a strip-shaped conductor that supplies power to or within a switchboard.

  A strip-like conductor formed of copper or the like is frequently used for a bus bar that supplies low-voltage power to a switchboard or the like, and a branch bus that is branched from the bus bar and supplies power to each branch circuit in the switchboard.

  In a three-phase power or single-phase power circuit, a bus bar is formed with a set of three strip plate conductors, and for such a fixed support of the bus bar, for example, as shown in Patent Document 1 or the like, A rail in which a groove having a width corresponding to the thickness of the strip plate conductor is used, and the end of the strip plate conductor in the width direction is fitted into the groove of the block, and each block is fixed to the rail. There is a method of holding a pair of strip plate conductors at regular intervals by fastening them with bolts or the like.

  Further, by using a support member in which grooves corresponding to three strip plate conductors are formed, a pair of strip plate conductors are fixed and supported integrally by fastening two support members. I have to.

  By the way, the strip-shaped conductor used for the bus has a cross-sectional area corresponding to the load capacity, and the thickness (plate thickness) is small in equipment and branch buses with small load capacity, and the groove width formed in the support member is also small. However, in the bus bar having a large load capacity, the thickness of the strip-shaped conductor is large or a plurality of sheets are used, and thus a support member in which a wide groove is formed is required.

For this reason, when using strip-like conductors with different plate thicknesses as busbars, it is necessary to use support members according to the respective plate thicknesses, which makes it difficult to produce parts and to manage inventory. There is. That is, a member of a type corresponding to the plate thickness of the strip plate conductor must be used, and inventory management such as manufacturing and ordering for that purpose is required.
JP 2003-164018 A JP 2001-275213 A

  The present invention has been made in view of the above-described facts, and facilitates inventory management and improves workability when fixing the strip plate conductor when the strip plate conductor is supported by the support base. An object of the present invention is to provide a support base that can be used.

  In order to achieve the above object, the present invention provides a plurality of strips that are formed in a strip shape with a predetermined plate thickness and that extend along the length direction so that the surfaces on both sides in the thickness direction face each other. The support is disposed to face each of the end portions in the width direction of the strip-shaped conductor with respect to the strip-shaped conductor, and sandwiches and supports a plurality of strip-plate-shaped conductors, the longitudinal direction being the plate Of the side surfaces orthogonal to the longitudinal direction of the main body disposed along the thickness direction, at least two side surfaces have the same groove width on the same side surface and different groove widths between different side surfaces. A fitting groove into which an end portion in the width direction of the plate-like conductor is fitted is formed.

  According to this invention, the main body is disposed so as to straddle a plurality of strip plate-like conductors at the end portions in the strip plate width direction, and the end portions in the width direction of the strip plate conductors in the fitting grooves formed on the side surfaces And a plurality of strip plate conductors are clamped together by fastening the main body. At this time, a plurality of strip plate conductors can be fixed by fixing one main body at a predetermined position.

  When the end of the strip plate conductor in the width direction is fitted into the fitting groove to sandwich the strip plate conductor, the fitting groove having a groove width corresponding to the thickness of the strip plate conductor is used. Here, in the main body, fitting grooves are formed on at least two side surfaces, and the groove widths are different between the fitting grooves on the two side surfaces.

  Thereby, since it can use for the support of the strip | belt-plate-shaped conductor from which board thickness differs with one support stand, the kind of support stand can be decreased and manufacturing management and inventory management become easy.

  According to a second aspect of the present invention, a fastening hole perpendicular to the side surface on which the fitting groove is formed is formed in the main body between the fitting grooves adjacent to each other on the same side surface. It is characterized by.

  According to this invention, when the surface in which the fitting groove is formed is disposed at both end portions in the width direction of the strip plate conductor, it can be fastened by using the through holes formed in the two main bodies.

  As described above, according to the present invention, fitting grooves having different groove widths are formed on at least two side surfaces, thereby supporting one type of belt-like conductors having different plate thicknesses. Therefore, it is possible to obtain an excellent effect of facilitating production management and inventory management.

  Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B show a schematic configuration of a support base 10 applied to the present embodiment. As shown in FIG. 2, the support bases 10 are held in pairs with the strip plate conductors 12 disposed between each other, and one support base 10 is connected to a frame (not shown). By fixing to the base 14, the strip plate-like conductor 12 is fixed to a predetermined position of the frame.

  Here, the strip-shaped conductor 12 is formed in a long strip shape using copper or the like having high conductivity. The strip-shaped conductor 12 has a cross-sectional area that ensures a necessary allowable current, and the width dimension (width w) and the plate thickness t are determined based on this cross-sectional area. Further, each of the three strip plate conductors 12 has the same thickness t and width w.

  Here, three strip plate conductors 12 are laid as a set for feeding low-voltage three-phase AC power or single-phase (three-wire) AC power. The three strip plate conductors 12 can be fixed and supported integrally.

  As shown in FIGS. 1 (A) and 1 (B), the main body 16 of the support base 10 has a long rectangular outer shape. Further, the main body 16 has a rectangular shape such as a square shape along the direction orthogonal to the longitudinal direction.

  Thereby, four side surfaces 18 orthogonal to the longitudinal direction are formed in the main body 16. In the following, when the four side surfaces 18 are distinguished, the side surfaces 18A, 18B, 18C, and 18D are used. Further, in FIG. 1B, the main body 16 is rotated by 90 ° around the longitudinal direction from the state of FIG.

  In the support base 10, a fitting groove 20 is formed on the side surface 18 of the main body 16 so as to face the end portion in the width direction of the strip plate conductor 12. The fitting groove 20 is formed with a predetermined depth d in each of a central portion along the longitudinal direction of the main body 16 and both end portions in the longitudinal direction. Further, each of the fitting grooves 20 has a groove direction along a direction orthogonal to the longitudinal direction of the main body 16.

  The main body 16 of the support base 10 is integrally molded using a polycarbonate resin or the like containing glass fibers, so that high durability and electrical insulation can be obtained.

  As shown in FIG. 2, the support base 10 has the strip plate conductors 12 arranged side by side so that their width directions are parallel to each other, and the longitudinal direction of the main body 16 is the arrangement direction of the strip plate conductors 12. Are arranged along the plate thickness direction, and each of the end portions 12A on both sides in the width direction of the strip plate conductor 12 is fitted into the fitting groove 20, whereby the strip plate conductor 12 is predetermined by the pair of support bases 10. It can be held at intervals and electrically insulated.

  By the way, the main body 16 of the support base 10 is formed with fitting grooves 20 in at least two side surfaces 18. Further, the groove width of the fitting groove 20 is changed between the side surfaces 18.

In the support base 10 applied to the present embodiment, the fitting groove 20A is formed on the side surface 18A, the fitting groove 20B is formed on the side surface 18B, and the fitting groove 20C is formed on the side surface 18C. That is, the fitting grooves 20A, 20B, and 20C are formed on the three side surfaces 18A, 18B, and 18C excluding the side surface 18D. Here, as an example, fitted grooves 20A, 20B, the groove width of 20C when formed into a groove width _{DW 1, DW 2, DW 3} , so that the _{DW 1 <DW 3 <DW 2} .

Moreover, in the support base 10, the plate | board thickness t of the strip | belt-plate-shaped conductor 12 inserted into the insertion groove | channel 20 shall be narrower than the groove width of the insertion groove | channel 20, for example, the depth of the insertion groove | channel 20 (20A-20C). When d = 5 mm and DW ₁ = 14 mm, the strip-shaped conductor 12 having a plate thickness t of 12 mm or less can be fitted, and when the groove width DW ₂ = 34 mm and DW ₃ = 26 mm, The sheet thickness t can be used to support a plurality of strip-shaped conductors 12 having a thickness of 12 mm or less.

  That is, when the strip plate conductor 12 is fitted into the fitting groove 20, a gap of about 2 mm is formed in the thickness direction of the strip plate conductor 12 to ensure the ease of fitting, while ensuring the ease of fitting. When the plate-like conductor 12 is supported, rattling or the like does not occur.

  In addition, in the support base 10 applied to this Embodiment, each of the fitting grooves 20A, 20B, and 20C is made to have the same center space | interval between the fitting grooves 20 adjacent to each other.

  On the other hand, a through-hole 22 whose axial direction is orthogonal to the corresponding side surface 20 is formed on the side surface 18 where the fitting groove 20 is formed in the main body 16. That is, in the main body 16 of the support base 10 in which the fitting grooves 20 (20A, 20B, 20C) are formed in the three side surfaces 18A, 18B, 18C, the through holes 22A penetrating from the side surface 18A to the side surface 18C and the side surface 18B. A through hole 22B penetrating the side surface 18D is formed.

  The through holes 20A and 20B are formed at an intermediate position of the fitting groove 20, and between the support bases 10 arranged in pairs, when the fitting groove 20 is opposed, the through hole 20 is coaxial. ing. That is, between the support bases 10 arranged in pairs, for example, when the side surfaces 18A are opposed to each other, the fitting grooves 20A are overlapped at positions where the through holes 22A are coaxial.

Thereby, for example, as shown in FIG. 2, between the support bases 10 arranged in pairs, a bolt (hereinafter, referred to as a dimensioning bolt 24) obtained by cutting a long screw bolt into a predetermined length, The through holes 22 of the support base 10 are inserted into the through holes 22 of the other support base 10, and are fastened by screwing nuts 26 to both ends protruding from the through hole 22.
A washer or the like (not shown) is interposed between the nut 26 and the main body 16 of the support base 10.

  When the belt-like conductor 12 is supported using the support base 10 configured as described above, the side surface 18 on which the fitting groove 20 having a groove width corresponding to the plate thickness t of the belt-like conductor 12 is formed. It is made to oppose the edge part 12A of the both sides of the width direction of the strip | belt-plate-shaped conductor 12. FIG. 2 shows a state in which the side surface 18A on which the fitting groove 20A is formed is opposed to the end portion in the width direction of the strip plate conductor 12.

  Here, the end portions 12 </ b> A of the three strip plate conductors 12 are fitted into the fitting grooves 20 of the support 10 arranged in pairs. Thus, the three strip plate conductors 12 are arranged in a state where the width direction is parallel.

  In this state, the cutting bolt 24 is inserted from the through hole 22 (22A) of one support base 10 into the through hole 22 of the other support base 10, and the tip of the cutting bolt 24 protruding from the through hole 22 is inserted. The nut is inserted into a through hole (not shown) formed in the base 14, and a nut 26 is screwed onto the tip of the dimensioning bolt 24 protruding from the base 14. Thereby, by fastening the support bases 10 arranged in pairs, the strip plate-like conductor 12 is sandwiched by the support bases 10 and fixed to the base 14. At this time, each of the strip plate conductors 12 is held so as to be parallel to each other.

  Thus, the support base 10 that supports the strip-like conductor 12 is formed with fitting grooves 20 on the three side surfaces 18A, 18B, and 18C, and the groove width of the fitting groove 20 is the side surfaces 18A and 18B. , 18C.

  Thereby, the two support bases 10 can be used for supporting the strip-like conductors 12 having different thicknesses t. In other words, one support base 10 also serves as three types of support bases, so that the number of support bases 10 can be reduced with respect to the type of plate thickness t of the strip-like conductor 12.

  Accordingly, the number of types of support bases 10 to be manufactured can be reduced, and manufacturing and inventory management are facilitated.

  In the support base 10 applied to the present embodiment, the fitting grooves 20 (20A, 20B, and 20C) are formed on the three side surfaces 18A, 18B, and 18C, and the fitting groove 20 is not formed on the side surface 18D. ing. Thereby, when the main body 16 is resin-molded, the side surface 18D side can be used for die cutting for molding.

  On the other hand, in the present embodiment described above, the support base 10 in which the fitting grooves 20 are formed on the three side surfaces 18 has been described as an example. Any groove may be used.

For example, FIG. 3 shows a support 30 as an example when the fitting grooves 20 are formed on the two surfaces. In the support base 30, fitting grooves 20 (for example, fitting grooves 20 </ b> A and 20 </ b> D) are formed on the side surface 34 </ b> A of the main body 32 and the side surface 34 </ b> B that is the back side of the side surface 34 </ b> A. Here, as an example, the groove width DW ₄ of the groove width DW ₁ the fitting groove 20D of the fitting groove _20A, is set to DW 1> DW _4.

  Thereby, it can use for the support fixation of the strip | belt-shaped conductor 12 of 2 types of board thickness t. At this time, as a fastening hole for fastening the support base 30 by forming the fitting groove 20 in the side face 34A and the side face 34B which is the back side of the side face 34A, one through hole penetrating from the side face 34A to the side face 34B is used. 22 is enough.

  When the fitting groove 20 is formed on two side surfaces, the fitting groove 20 may be formed on two side surfaces adjacent to each other.

  On the other hand, FIG. 4 shows a support base 40 as an example when the fitting groove 20 is formed on each of the four side surfaces.

  In the support base 40, the fitting grooves 20 are formed in each of the four side surfaces 44A, 44B, 44C, and 44D of the main body 42. At this time, the fitting groove 20A is formed in the side surface 44A, the fitting groove 20B is formed in the side surface 44B, the fitting groove 20C is formed in the side surface 44C, and the fitting groove 20D is formed in the side surface 44D.

  Thereby, one type of support base 40 can be used for fastening and fixing four types of strip-shaped conductors 12 having a thickness t.

  In addition, this Embodiment demonstrated above does not limit the structure of this invention. For example, the depth d and the groove width of the fitting groove 20 are not limited to the numerical values exemplified in the present embodiment as long as the thickness t of the belt-like conductor 12 to be supported is taken into consideration.

  Moreover, in the support bases 10, 30, and 40 applied to this Embodiment, although the space | interval of the fitting groove | channel 20 (here, the space | interval of a groove center as an example) was made the same, not only this but in each side surface 20 The interval between the fitting grooves 20 may be changed. At this time, the interval between the fitting grooves 20 on the side surface where the fitting grooves 20 (for example, the fitting grooves 20B and 20C) having a larger groove width than the fitting grooves 20 having the smaller groove width (for example, the fitting grooves 20A and 20D) are formed. Is preferably increased.

  That is, you may make it change the space | interval of the fitting groove | channel 20 between the side surface in which the fitting groove | channel 20 with comparatively small groove width was formed, and the side surface in which the fitting groove | channel 20 with large groove width was formed.

  Moreover, as a support stand of this invention, you may make it change the length and width dimension (width dimension of a side surface), etc. along a longitudinal direction based on the groove width etc. of the fitting groove | channel 20 to form.

  That is, the support base that forms the fitting groove 20 having a relatively large groove width may be made larger than the support base that forms the fitting groove 20 having a narrow groove width.

  In addition, as a support stand to which the present invention is applied, it can be formed using any material in consideration of durability, impact resistance, moisture resistance, flex resistance, etc. in addition to electrical insulation.

(A) And (B) is a perspective view which shows schematic structure of the support stand applied to this Embodiment. It is a schematic perspective view which shows the support state of the strip | belt-plate-shaped conductor by the support stand applied to this Embodiment. It is a schematic perspective view which shows another example of a support stand. It is a schematic perspective view which shows another example of the support stand different from FIG.

Explanation of symbols

10, 30, 40 Support base 12 Strip plate conductor 14 Base 16, 32, 42 Main body 18 (18A-18D), 34 (34A, 34B), 44 (44A-44D) Side surface 20 (20A-20D) Fitting groove 22 (22A, 22B) Through hole (fastening hole)

Claims (2)

With respect to a plurality of strip-shaped conductors that are formed in a strip shape with a predetermined thickness and are opposite to each other in the thickness direction and extend along the length direction, A support base that is arranged to face each of the end portions in the width direction and sandwiches and supports a plurality of strip plate conductors,
Of the side surfaces orthogonal to the longitudinal direction of the main body, the longitudinal direction of which is disposed along the plate thickness direction, at least two side surfaces,
The same groove width on the same side surface, the groove width is different between different side surfaces, forming a fitting groove into which the end in the width direction of the strip plate conductor is fitted,
A support stand characterized by that.   The fastening hole which becomes perpendicular | vertical with respect to the said side surface in which the said fitting groove was formed in the said main body is formed between the said fitting grooves mutually adjacent on the same side surface. The support stand described.

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