JP2018191438A - Bus Duct Power Distribution System - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bus duct power distribution system that is distributed by being received by a rack or the like, and has higher connection reliability.SOLUTION: In a bus duct power distribution system W, a bus duct trunk line 100 in which a plurality of bus ducts is connected with a connection part is distributed in a server rack 1 provided in line on a floor surface FL. The plurality of bus ducts includes a horizontal bus duct 110 distributed in an almost horizontal direction and a vertical bus duct 120 distributed in an almost vertical direction. At least any one of the horizontal bus duct 110 and the vertical bus duct 120 is supported by the server rack 1. The bus duct trunk line 100 includes a modification bus duct 130 that electrically connects the horizontal bus duct 110 and the vertical bus duct 120. A flexible conductive part 30 is provided to the modification bus duct 130 in the bus duct trunk line 100 or at a portion near from the modification bus duct 130.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a bus duct power distribution system, for example, a bus duct power distribution system provided with a connection portion having a structure for improving the connection reliability of bus conductors constituting a bus duct trunk line mounted on a fixture such as a server rack.

  Distribution systems using bus ducts are widely used as electrical trunks for buildings. Since the bus duct is used by being fixed to the building, a straight bus duct, a deformed bus duct formed in an L shape, or the like is appropriately combined with a connecting member along the arrangement route in the arranged building. It's being used.

  The bus duct is mainly composed of a bus bar conductor and a housing that encloses it, and is basically arranged and used so that no deformation occurs. On the other hand, there are elements that should be assumed to deform the bus duct itself. For example, expansion and contraction occurs in the bus duct due to the temperature change of the bus duct itself, and the influence is particularly noticeable in the extending longitudinal direction. Therefore, when the bus duct is simply constructed with a predetermined length, there is a risk that the bus duct itself may be deformed or broken due to expansion and contraction due to the influence of temperature change.

  Patent Document 1 discloses a bus duct having a structure capable of dealing with the above risk. Patent Document 1 discloses a joint structure that can expand and contract in the length direction of a bus duct. According to this structure, even if the bus duct expands and contracts in the extending length direction, the expansion and contraction can be absorbed with a certain length as a limit value.

JP 2007-295742 A

  By the way, in recent years, the use of bus ducts in data centers has also expanded. For example, the bus duct is fixedly disposed on a server rack installed in a building and is used for power distribution to a device accommodated in the server rack. In this case, the bus duct is supported on the basis of the server rack. In addition, the server rack serving as a support base for the bus duct is a structure that is more flexible than a building. On the other hand, the bus duct is a structure that eliminates mobility as much as possible. For this reason, for example, when a server rack vibrates due to vibration caused by an earthquake or the like, the bus duct itself may be tilted due to propagation of the effect caused by the distortion to the bus duct. There is a possibility that a load that is larger than expected is applied to a weak place (for example, a connection portion), causing a connection failure and causing a malfunction.

  In addition, server racks tend to behave in different ways on the bottom surface and top surface of the main body in the event of an earthquake, and the load on the connection due to the distortion described above is in an unspecified direction. May occur.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a bus duct power distribution system that is supported by a rack or the like and is provided with higher connection reliability.

  The present invention made to solve the above-mentioned problems is a bus duct power distribution system in which a bus duct main line in which a plurality of bus ducts are connected by connecting portions is arranged on racks arranged on the floor, The bus duct includes a horizontal bus duct arranged in a substantially horizontal direction and a vertical bus duct arranged in a substantially vertical direction, and at least one of the horizontal bus duct and the vertical bus duct is supported by the rack, and the bus duct The main line has a deformed portion that electrically connects the horizontal bus duct and the vertical bus duct, and a deformable conductor is provided in the deformed portion or a portion near the deformed portion in the bus duct main line. It is characterized by that.

  According to the above configuration, even if a rack that has received vibration due to an earthquake or the like is distorted and the side surface of the rack is inclined, and the bus duct is inclined to follow this, it is provided at the deformed portion or a portion near the deformed portion. The “deformable conductor” is deformed to absorb the load caused by the tilt. As a result, according to the present invention, it is possible to prevent a load larger than expected from being applied to the connection portion of the bus duct main line, and to reduce the possibility of a connection failure occurring at the connection portion. That is, according to the present invention, a bus duct power distribution system in which the reliability of the connection portion is higher is provided.

  The horizontal bus duct is preferably mounted on the racks arranged in a row.

  According to this configuration, it is not necessary to separately perform work for obtaining support from the building, so that it is possible to construct a bus duct simply and at low cost.

  In addition, the present invention is a bus duct power distribution system in which a bus duct main line in which a plurality of bus ducts are connected to each other by racks arranged on a floor is disposed, and the plurality of bus ducts are substantially horizontally oriented. Includes a first horizontal bus duct and a second horizontal bus duct disposed in a vertical direction, and a vertical bus duct disposed in a substantially vertical direction, and at least one of the first horizontal bus duct and the vertical bus duct is supported by the rack. The bus duct main line includes a first deforming portion that electrically connects the first horizontal bus duct and the vertical bus duct, and a second deforming portion that electrically connects the second horizontal bus duct and the vertical bus duct. And a deformable conductor is provided in the second deformable portion or a portion near the second deformable portion in the bus duct main line. That.

  According to this configuration, for example, the vertical bus duct is disposed along the side surface of the rack, and the upper end portion of the vertical bus duct is disposed on the top surface (upper surface) of the rack via the first deformation portion. When the lower end portion of the vertical bus duct is connected to the second horizontal bus duct disposed under the floor via the second deformable portion, the connection portion with the second deformable portion is more than expected. It is prevented that a load of a magnitude is applied. That is, according to the above configuration, even if the rack that has received vibration due to an earthquake or the like is distorted and the side surface of the rack is inclined and the bus duct is inclined to follow this, the second deformable portion or the vicinity of the second deformable portion. The “deformable conductor” provided at the part of the member can be deformed to absorb the load caused by the inclination.

  In addition, the present invention is a bus duct power distribution system in which a bus duct main line in which a plurality of bus ducts are connected to each other by racks arranged on a floor is disposed, and the plurality of bus ducts are substantially horizontally oriented. And a first vertical bus duct and a second vertical bus duct arranged in a substantially vertical direction, and at least one of the horizontal bus duct and the first vertical bus duct is supported by the rack. The bus duct main line includes a first deforming portion that electrically connects the horizontal bus duct and the first vertical bus duct, and a second deforming portion that electrically connects the horizontal bus duct and the second vertical bus duct. And a deformable conductor is provided in the second deformable portion or a portion near the second deformable portion in the bus duct main line. That.

  According to this configuration, for example, the horizontal bus duct is installed on the top surface (upper surface) of the rack, and the first vertical bus duct disposed along the side surface of the rack via the first deformation portion at one end of the horizontal bus duct. When the second vertical bus duct is connected and connected to the other end of the horizontal bus duct via the second deformation portion and extending in the ceiling direction, the connection portion with the second deformation portion has a size larger than expected. It is prevented that a load is applied. That is, according to the above configuration, even if the rack that has received vibration due to an earthquake or the like is distorted and the side surface of the rack is inclined and the bus duct is inclined to follow this, the second deformable portion or the vicinity of the second deformable portion. The “deformable conductor” provided at the part of the member can be deformed to absorb the load caused by the inclination.

  The deformable conductor is preferably a flexible conductor.

  According to this configuration, a conductor that can be deformed by an existing member can be configured, so that it can be implemented at a low cost.

  Further, it is desirable that the deformable conductor is a bus conductor obtained by deforming a substantially flat bus conductor in the longitudinal direction to a desired angle.

  According to this structure, since it is not necessary to comprise the conductor of a deformation | transformation part with another member, the conductor which can be deform | transformed at low cost can be obtained.

  Preferably, the plurality of bus ducts include a plurality of bus conductors, and the deformable conductors are arranged without being parallel to the thickness direction of the bus conductors.

  According to this configuration, it is possible to design a housing that encloses the deformable conductor in a compact manner.

  According to the present invention, there is provided a bus duct power distribution system that is supported and supported by a rack or the like, and the connection portion even if the rack or the like is deformed by vibration caused by an earthquake or the like and the bus duct is inclined in an unspecified direction. Since the load due to the inclination is not propagated, it is possible to provide a bus duct power distribution system disposed in a rack or the like with higher connection reliability.

It is a mimetic diagram for explaining the whole composition of the bus duct power distribution system of a 1st embodiment of the present invention. It is a schematic diagram for demonstrating the structure of the deformation | transformation bus duct which connects the vertical bus duct of the bus duct trunk line which comprises the bus duct power distribution system of 1st Embodiment of this invention, and the horizontal bus duct arrange | positioned at the top | upper surface of a rack. It is the schematic diagram which showed the deformation | transformation bus duct which connects the vertical bus duct of the bus duct trunk line which comprises the bus duct power distribution system of 1st Embodiment of this invention, and the horizontal bus duct arrange | positioned under the floor. It is the schematic diagram which showed the structure of the connection part which connects the horizontal bus duct of the bus duct trunk line which comprises the bus duct power distribution system of 1st Embodiment of this invention, and a deformation | transformation bus duct. It is a schematic diagram for demonstrating the connection member which connects the conductors of the bus duct trunk line which comprises the bus duct power distribution system of 1st Embodiment of this invention, and shows the state before a connection member is attached between the conductors of a bus duct. Yes. It is a schematic diagram for demonstrating the connection member which connects the conductors which comprise the bus duct trunk line which comprises the bus duct power distribution system of 1st Embodiment of this invention, and shows the state by which the connection member was attached between the conductors of a bus duct ing. It is a schematic diagram for demonstrating the deformation | transformation operation | movement when the server rack of 1st Embodiment of this invention receives the vibration, (a) is the schematic diagram which showed the state of the server rack when not receiving the vibration FIG. 6B is a schematic diagram showing the state of the server rack when it receives vibration. It is a schematic diagram for demonstrating the state of the conductor inside a deformation | transformation bus duct when the server rack of 1st Embodiment of this invention receives a vibration and deform | transforms, and (a) is a conductor when not receiving the vibration It is the schematic diagram which showed the state of this, (b) is the schematic diagram which showed the state of the conductor when receiving the vibration. It is a schematic diagram for demonstrating the 1st modification of the deformation | transformation part of the bus duct power distribution system of 1st Embodiment of this invention. It is a schematic diagram for demonstrating the 2nd modification of the deformation | transformation part of the bus duct power distribution system of 1st Embodiment of this invention. It is a schematic diagram for demonstrating the 3rd modification of the deformation | transformation part of the bus duct power distribution system of 1st Embodiment of this invention. In the 3rd modification shown in FIG. 11, it is the schematic diagram which showed the aspect which fastened the flexible conductor part and the vertical bus-bar conductor part with the fastening means. It is a schematic diagram for demonstrating the 4th modification of the deformation | transformation part of the bus duct power distribution system of 1st Embodiment of this invention. It is a schematic diagram for demonstrating the 5th modification of the deformation | transformation part of the bus duct power distribution system of 1st Embodiment of this invention. It is the schematic diagram which showed the 1st modification of the connection structure of the conductors of the bus duct trunk line of 1st Embodiment of this invention. It is the schematic diagram which showed the 2nd modification of the connection structure of the conductors of the bus duct trunk line of 1st Embodiment of this invention. It is a schematic diagram for demonstrating the other structural example of the deformable conductor in the conductor which comprises the bus duct trunk line of 1st Embodiment of this invention, (a) is before the conductor part which can deform | transform is formed. It is the schematic diagram which showed the flat conductor of this, and is the schematic diagram which showed the state in which the conductor part which can deform | transform was formed. It is a schematic diagram for demonstrating the whole structure of the bus duct power distribution system of 2nd Embodiment of this invention. It is the schematic diagram which showed the structure of the connection part of the horizontal bus duct installed on the rack of the bus duct trunk line which comprises the bus duct power distribution system of 2nd Embodiment of this invention, and a deformation | transformation bus duct. It is the schematic diagram which showed the structure of the connection part of the horizontal bus duct installed in the ceiling back of the bus duct trunk line which comprises the bus duct power distribution system of 2nd Embodiment of this invention, and a deformation | transformation bus duct. It is a schematic diagram for demonstrating the bus duct power distribution system arrange | positioned in support of the rack of a prior art. It is a schematic diagram for demonstrating the state of the conductor inside a deformation | transformation bus duct when the server rack of a bus duct power distribution system of a prior art receives deformation, and is deform | transformed, (a) of the conductor when not receiving vibration It is the schematic diagram which showed the state, (b) is the schematic diagram which showed the state of the conductor when receiving the vibration. It is a schematic diagram for demonstrating the twisted state of the conductors with which the bus duct trunk line faced | matched when the server rack of the bus duct power distribution system of a prior art receives deformation | transformation, and deform | transforms. It is a schematic diagram for demonstrating the deformation | transformation operation | movement of the connection part of the deformation | transformation bus duct of a bus duct trunk line, and a horizontal bus duct when the server rack of a bus duct power distribution system of a prior art receives deformation | transformation, (a) It is the schematic diagram which showed the state of the connection part when not receiving, (b) is the schematic diagram which showed the state of the connection part of the conductor when receiving the vibration.

  Hereinafter, a bus duct power distribution system according to embodiments of the present invention (first and second embodiments) will be described with reference to the drawings. The bus duct power distribution system of the present invention is not limited to the following embodiment and its modifications.

<< First Embodiment >>
First, a schematic configuration of the bus duct power distribution system according to the first embodiment of the present invention will be described with reference to FIGS.
Here, FIG. 1 is a schematic diagram for explaining the overall configuration of the bus duct power distribution system of the first embodiment. FIG. 2 is a schematic diagram for explaining a structure of a modified bus duct that connects a vertical bus duct of a bus duct main line constituting the bus duct power distribution system of the first embodiment and a horizontal bus duct disposed on the top surface of the rack. . FIG. 3 is a schematic diagram showing a modified bus duct that connects a vertical bus duct of a bus duct main line constituting the bus duct power distribution system of the first embodiment and a horizontal bus duct arranged under the floor.

  As shown in FIG. 1, the bus duct power distribution system W includes a bus duct main line 100 arranged in a server rack 1 (hereinafter simply referred to as “rack 1”) arranged in a building floor surface FL. . The bus duct main line 100 is connected to a power supply unit (not shown) and supplies power to electronic devices such as servers accommodated in the rack 1.

The above-described bus duct main line 100 is configured by connecting a plurality of bus ducts (horizontal bus duct 110, vertical bus duct 120, and modified bus duct 130) with a connecting member 50 (see FIGS. 2 and 3). The bus duct main line 100 disposed in the rack 1 is at least one of “a horizontal bus duct 110 disposed in a substantially horizontal direction” and “a vertical bus duct 120 disposed in a substantially vertical direction”. One is supported and fixed to the rack 1.
The bus duct shown in the figure is an air insulation type, but may be an insulation close contact type or a multistage configuration in which a plurality of bus conductors are provided for each phase.

  Each of the horizontal bus duct 110 and the vertical bus duct 120 has a rectangular cylindrical housing (rectangular shape in a side view) penetrating both ends, and is enclosed in the housing 20a (for example, accommodated inside the housing 20a). "4-wire power transmission conductor (bus conductor) 10". Each of the four-wire conductors 10 is formed in a rectangular plate shape, and is supported and fixed inside the housing 20a while being separated from each other and arranged in parallel. The structure for supporting and fixing the conductor 10 to the housing 20a is not particularly limited. For example, the conductor 10 may be supported and fixed by an insulating support member or the like (not shown) attached to the housing 20a. Good.

  The deformed bus duct 130 is for electrically connecting the horizontal bus duct 110 and the vertical bus duct 120, and has a shape bent in an L shape.

  Specifically, as shown in FIGS. 2 and 3, the deformed bus duct (deformed portion) 130 includes an L-shaped tubular shape (L-shaped in a side view) penetrating both ends, and a housing 20 b ( For example, it has a “4-wire connecting conductor (bus conductor) 11” housed in the housing 20a. Each of the four-wire conductors 11 is formed in an L-shaped plate shape, and is supported and fixed inside the housing 20b while being separated from each other and arranged in parallel. The structure for supporting and fixing the conductor 11 to the housing 20b is not particularly limited. For example, the conductor 11 is supported and fixed by an insulating support member or the like (not shown) attached to the inside of the housing 20b. May be.

  In addition, one end of the conductor 11 of the modified bus duct 130 is electrically connected to one end of the conductor 10 of the horizontal bus duct 110 via the connection member 50, and the other end of the conductor 11 of the vertical bus duct 120 via the connection member 50. It is electrically connected to one end. The four-wire conductors 11 are connected to the conductors 10 to be connected to the horizontal bus duct 110 (or the vertical bus duct 120), respectively.

  Further, one end of the housing 20b of the modified bus duct 130 is fixed to one end of the housing 20a of the horizontal bus duct 110, and the other end is fixed to one end of the housing 20a of the vertical bus duct 120.

The conductor 11 of the deformed bus duct 130 is provided with a flexible conductor (deformable conductor) 30 (see FIGS. 2 and 3). Specifically, the conductor 11 includes a horizontal bus bar conductor portion 11a extending in the horizontal direction (Y direction in the drawing) and a vertical bus bar extending in the vertical direction (Z direction in the drawing). It has a conductor portion 11b and a flexible conductor portion 30. In the example shown in FIG. 2, the flexible conductor portion 30 has one end connected to one end of the horizontal bus conductor portion 11a and the other end connected to one end of the vertical bus conductor portion 11b. In the example shown in FIG. 3, the flexible conductor portion 30 is provided between the two vertical busbar conductor portions 11b.
Further, the flexible conductor portion 30 is formed of, for example, a flexible conductor formed by superposing one or several flat braided wires. As shown in FIGS. 2 and 3, in the first embodiment, the flexible conductor portion 30 is formed in an L-shaped plate shape and is formed near the corner portion of the conductor 11. The configuration of the modified bus duct 130 will be described in detail later.

  As described above, according to the configuration of the first embodiment, even when the rack 1 is subjected to vibration due to an earthquake or the like, distortion occurs, the rack 1 tilts, and the bus duct main line 100 tilts following this, the flexible conductor portion. Since 30 is deformed, the load caused by the inclination is absorbed. As a result, according to the first embodiment, it is possible to prevent a load larger than expected from being applied to the connecting portion (the connecting portion connected by the connecting member 50) in the bus duct main line 100, and the connection portion connects. The possibility of occurrence of defects is reduced. That is, according to 1st Embodiment, the bus duct power distribution system W with a higher reliability of a connection part is provided.

  Next, the configuration of the rack 1 according to the first embodiment and the arrangement of the bus duct main line 100 disposed in the rack 1 will be described with reference to FIGS.

  The rack 1 is formed in a substantially rectangular hollow box shape having a bottom surface 1a, four side surfaces 1b erected from the bottom surface 1a, and a top surface 1c opposite to the bottom surface 1a. For example, a plurality of racks 1 are arranged adjacent to a floor (installation surface) FL of a building such as a data center. Further, the end portions of the top surfaces 1 c of the racks 1 arranged adjacent to each other are fixed by the attachment member 3.

The mounting member 3 is configured by a channel member (such as a substantially convex channel member formed in a cross-sectional hat shape) that is long in the depth direction of the rack 1 (X direction in the drawing).
Specifically, the mounting member 3 includes a rectangular plate-shaped mounting surface (upper surface) 3a and a pair of sides that are bent at right angles from the left and right sides of the mounting surface 3a toward one (downward). Part 3b. In addition, each of the pair of side portions 3b is formed with a mounting surface 3c extending in a direction away from each other at one end portion (lower end portion) (bending at a right angle with respect to the side portion 3b). ing.

  The mounting member 3 has a pair of placement surfaces 3c placed on and spanned from the top surface 1c of the adjacent rack 1, and the placement surface 3c and the top surface 1c of each rack 1 are fastened with bolts or the like. It is fixed by means. When the attachment member 3 is attached to the top surface 1c, the attachment surface 3a is disposed at a position above the placement surface 3c (a relatively high position in the Z direction in the drawing). Further, the mounting surface 3a is formed to have a width dimension extending in the width direction (Y direction in the figure) of the rack 1, and the bus duct main line 100 is placed thereon.

In the example shown in FIG. 1, the horizontal bus duct 110 constituting the bus duct trunk line 100 is placed substantially horizontally on the mounting surface 3 a of the mounting member 3 and is fixed by the fixing bracket 7. The fixing fitting 7 is a member (member such as a convex fitting) having a shape obtained by rounding the channel member in the longitudinal direction, and has a dimension such that the horizontal bus duct 110 is accommodated in a space portion forming the convex shape. Further, the fixing bracket 7 is bolted so that the surfaces of both end portions are in contact with the mounting surface 3 a which is the top of the mounting member 3.
The fixing bracket 7 exemplifies a member in which the surfaces of both end portions that become the attachment portion to the attachment surface 3a are integrated, but is not limited to this. For example, the locking structure and the attachment surface related to the end portion of the bus duct It is good also as a structure which prepares 1 pair of members which have the attachment surface to 3a, and latches and fixes the both ends of a bus duct, respectively.
Further, in FIG. 1, the surfaces of both end portions of the fixing bracket 7 are fixed on the back side in the Y direction of the mounting surface 3a, but may be fixed near or near the center of the mounting surface 3a in the Y direction.
Note that an end portion of a rack row configured by arranging a plurality of racks 1 (the right end portion of the rightmost rack 1 shown in FIG. 1) is a channel member having a U-shaped cross-sectional view. Member 3 is installed.

  The mounting member 3 to which the horizontal bus duct 110 is fixed is provided at the end of the rack 1 having a predetermined dimension in the Y direction in the figure. Therefore, the horizontal bus duct 110 is fixed with a predetermined dimension based on the top surface 1c of the rack 1, and is fixed and disposed integrally with the top surface 1c of the rack 1.

The horizontal bus duct 110 may be placed directly on the top surface 1c of the rack 1. If the support is obtained from the top surface 1c, the horizontal bus duct 110 is positioned lower than the top surface 1c in the vertical direction (Z direction in the figure). You may arrange | position and may protrude and support from the surface of the top | upper surface 1c. Further, the mounting member 3 described above is exemplified by a substantially convex channel member and a U-shaped channel member, but may have any shape as long as it functions to support a rack. A square-shaped channel member may be used.
Further, the channel members can be arranged freely, and for example, a U-shaped channel member may be provided at any position not limited to the end of the rack row.

  An end portion of the horizontal bus duct 110 is arranged at an end portion of the rack row formed by arranging a plurality of racks 1 in a row. A vertical bus duct 120 extending in the vertical direction (Z direction in the drawing) is disposed on the side surface 1b of the rack 1 at the end of the rack row.

  The vertical bus duct 120 is fixed to the side surface 1 b of the rack 1 at the end of the rack row by a mounting bracket (not shown) and supported by the rack 1. The vertical bus duct 120 may be fixed and erected on the floor surface FL or the like without being supported by the side surface 1b of the rack 1.

  Further, the horizontal bus duct 110 disposed in the rack 1 at the end of the rack row is connected to the vertical bus duct 120 disposed on the side surface 1b of the rack 1 at the end of the rack row via the deformed bus duct 130. (See FIGS. 1 and 2).

  Further, the vertical bus duct 120 is arranged under the floor below the floor surface FL (a position lower in the Z direction than the floor surface) through the deformed bus duct 130 inserted through the through hole TH provided in the floor surface FL. It is connected to a horizontal bus duct 110 provided (see FIGS. 1 and 3). This underfloor bus duct 110 is connected to a power source (not shown).

  Note that the bus duct 110 disposed under the floor may be disposed so as to be connected to a power source (not shown), and a position relatively above the floor surface FL (a position above the Z direction). May be provided.

  Further, branching of loads to electronic devices such as servers stored in each rack 1 can be performed by, for example, a branching device 5 (see FIG. 1). The branching device 5 has a box part 5a, a branch conductor 5b supported by the box part 5a, and a lead-in wire (electric wire) 5c connected to the branch conductor 5b. Note that one end of the branch conductor 5b protrudes from the lower end of the box 5a.

  The horizontal bus duct 120 is provided with plug-in holes 20a1 at predetermined intervals. One end of the branch conductor 5b protruding from the branch device 5 is inserted into the plug-in hole 20a1, and is brought into contact with and electrically connected to the conductor (bus conductor) 10 included in the housing 20a1 of the horizontal bus duct 110. .

  Further, the lead-in wire 5c connected to the branch conductor 5b is inserted into a hole (not shown) provided in the top surface 1c of each rack 1 and connected to a terminal of an electronic device accommodated in each rack 1, whereby Electric power is supplied to the electronic device.

Next, the configuration of the modified bus duct 130 connected to the horizontal bus duct 110 (and the vertical bus duct 120) will be described with reference to FIGS. 2 and 4 described above.
FIG. 4 is a schematic diagram showing a configuration of a connecting portion that connects the horizontal bus duct of the bus duct main line and the modified bus duct that configure the bus duct power distribution system of the first embodiment.

  As illustrated, the conductor 10 of the horizontal bus duct 110 is electrically connected to the horizontal bus conductor portion 11 a of the conductor 11 of the deformed bus duct (deformed portion) 130 via the connection member 50. In addition, in the drawing, the conductor 10 of the vertical bus duct 120 is not visible because it is covered with the housings 20a and 20b. As with the horizontal bus duct 110, the conductor 11 of the deformed bus duct (deformed portion) 130 is connected via the connecting member 50. It is electrically connected to the vertical bus conductor portion 11b. Accordingly, the horizontal bus duct 10 and the vertical bus duct 120 are electrically connected via the deformed bus duct (deformed portion) 130. The configuration of the connection member 50 will be described later.

  The modified bus duct 130 includes a hollow cylindrical housing 20b having a substantially L shape having a horizontal portion and a vertical portion. The horizontal portion of the housing 20b accommodates a horizontal bus bar conductor portion 11a formed of a conductor extending in the horizontal direction (Y direction in the drawing) (a four-wire horizontal bus bar conductor portion 11a). Is housed). Further, inside the vertical portion of the housing 20b, a vertical bus conductor portion 11b formed by a conductor extending in the vertical direction (Z direction in the drawing) is accommodated (a 4-wire vertical bus conductor). Part 11b is accommodated). The conductors constituting the horizontal bus conductor portion 11 a and the vertical bus conductor portion 11 b are the same as the conductors 10 of the horizontal bus duct 110 and the vertical bus duct 120.

  Each of the four-wire horizontal bus conductor portions 11a is attached in such a manner that a flexible conductor portion (deformable conductor) 30 hangs downward (downward in the Z direction in the figure) with respect to the vicinity of the end portion. Yes. Each of the four-wire vertical bus conductor portions 11b has a lower end portion of a flexible conductor portion (deformable conductor) 30 attached to the horizontal bus conductor portion 11a with respect to the vicinity of the end portion (upper end portion). It is attached.

In 1st Embodiment, it does not specifically limit about the structure which attaches the flexible conductor part 30 to the horizontal bus-bar conductor part 11a (and vertical bus-bar conductor part 11b). For example, plate-like terminal portions (not shown) are provided at both ends in the longitudinal direction of the flexible conductor portion 30, and one terminal portion of the flexible conductor portion 30 and the horizontal bus conductor portion 11a are connected with bolts or the like. You may make it attach the flexible conductor part 30 to the edge part vicinity of the horizontal bus-bar conductor part 11a by fastening. In this case, the flexible conductor portion 30 is attached to the vicinity of the end portion of the vertical bus conductor portion 11b by fastening the other terminal portion of the flexible conductor portion 30 and the vertical bus conductor portion 11b with a bolt or the like.
The connection between the horizontal bus bar conductor portion 11a (and the vertical bus bar conductor portion 11b) and the flexible conductor portion 30 is fixed by means other than fastening means such as bolts (caulking by means of rivets, welding, thermocompression bonding, etc.). May be.
Moreover, although the same thing is illustrated in each figure about the dimension of the bus duct length direction of the flexible conductor part 30, it does not restrict to this, The flexible conductor part 30 of arbitrary length is provided about each line. Also good.

Further, in the vicinity of the fixed portion between the flexible conductor portion 30 and the horizontal bus bar conductor portion 11a (and the vertical bus bar conductor portion 11b), there is sufficient insulation between adjacent conductors by an insulating member (not shown in FIGS. 2 and 4). Insulation is ensured. That is, even if the flexible conductor 30 is deformed, it is electrically connected to the conductor 11 (the conductor 11 including the horizontal bus conductor portion 11a, the flexible conductor portion 30 and the vertical bus conductor portion 11b) disposed adjacently. Insulation is ensured so as not to occur.
As for the insulating member, a flexible member may be wound around the flexible conductor portion 30, or a substantially flat plate may be inserted between the flexible conductor portions 30 of each line and held, Any structure can be used as long as sufficient insulation can be obtained between the conductors.

Next, the connection member 50 for connecting the bus ducts (the horizontal bus duct 110, the vertical bus duct 120, and the modified bus duct 130) will be described with reference to FIGS. 2 and 4 and FIGS.
Here, FIGS. 5 and 6 are schematic diagrams for explaining a connection member for connecting conductors of the bus duct trunk line constituting the bus duct power distribution system of the first embodiment. 5 and 6, the cover member 51 and the connection conductor 52 disposed on the front side (front side in the X direction) are omitted in order to make the internal structure of the connection member 50 easier to understand.

  The connection member 50 is provided on the connection conductor 52 and the connection conductor 52 for electrically connecting the bus conductors ("bus conductor 10 and bus conductor 10" or "bus conductor 10 and bus conductor 11"). A contact portion 52a1 with the bus conductors (conductors 10 and 11), a clamping means 53 that biases and clamps the connecting conductors 52 as a set of two connecting conductors 52, and each bus conductor conductor. It has a cover member 51 that houses the connection conductor 52 and insulates it from each other.

  The connection member 50 includes a “cover member 51” made of a molded product of an insulating resin material for each line (bus conductors (conductors 10 and 11)), “connection conductor 52” and “ The structure having the clamping means 53 ”is a unit. The connecting member 50 has two connecting means (two connecting conductors 52 per line) corresponding to the number of bus conductors (conductor 10, conductor 11) of the bus duct (horizontal bus duct 110, vertical bus duct 120, modified bus duct 130). And a single connecting member 53 are included in the cover member 51, and four units are integrated into one connecting member 50. The cover member 51 is not limited to a resin molded product and may be made of any material as long as it has an insulating property.

  The connection conductor 52 includes a rectangular plate-shaped main body 52a and a cross section provided with a "one pair of leg pieces 52b" that are bent and extended in a substantially right angle direction from both longitudinal sides of the main body 52a. It is formed in a substantially U-shape when viewed. Two contact parts 52a1 (rectangular plate-like contact parts 52a1) are provided on the upper surface of the main body part 52a.

Further, the cover member 51 provided for each line (bus conductors (conductors 10 and 11)) includes “a pair of side wall portions (rectangular flat plate side wall portions) 51a” arranged to face each other. Yes. Further, the cover member 51 has a side wall extending from one surface of one side wall portion 51a (a surface facing the other side wall portion 51a) to one surface of the other side wall portion 51 (a surface facing the one side wall portion 51a). “Three pieces of insulating pieces 51 b 1, 51 b 2, 51 b 3” extending at right angles with respect to one surface of the portion 51 a are formed side by side in a state of being separated by a predetermined dimension.
The side wall 51a has an end extending outwardly from the intersection with the insulating piece 51b1 and an end extending outward from the intersection with the insulating piece 51b3, so that the housing (20a, 20b) A predetermined distance is maintained.

In the first embodiment, an insulating piece 51b1 is formed in the vicinity of the upper end of the side wall 51a (upper side in the Z direction in the figure), and at the center of the side wall 51a (the center in the Z direction in the figure). An insulating piece 51b2 is formed, and an insulating piece 51b3 is formed in the vicinity of the lower end of the side wall 51a (the lower side in the Z direction in the figure).
And it connects to the site | part divided by the insulation piece part 51b1 and the insulation piece part 51b2 in the one side of the side wall part 51a, and the site | part divided by the insulation piece part 51b3 and the insulation piece part 51b2, respectively. A conductor 52 is disposed.
Further, the insulating piece portions 51b2 and 51b3 are provided with “insertion slits 51c” cut into a rectangular shape at both ends thereof, and are formed in a substantially H-shaped flat plate shape in plan view. The ends of the bus conductors (conductors 10 and 11) to be connected are inserted into the insertion slit 51c. The insulating piece portion 51b1 has slits 51d (see FIGS. 5 and 6) shallower than the insertion slit 51c at both ends, and the end portion of the bus conductor inserted from the insulating piece portion 51b3 side contacts the insulating piece portion 51b1. It is designed to prevent further insertion. The edge piece 51b1 may be a substantially rectangular shape without the slit 51d.

  The clamping means 53 includes a bolt / nut for fastening and a leaf spring member that is inserted into the bolt together with the connection conductor 52 and biases the connection conductor 52. The clamping means 53 is not limited to fixing by bolts and nuts, and may have any structure as long as it holds the paired connection conductors 53 in a direction in which they are attracted to each other.

  In the first embodiment, since the bus duct has 4 wires, the connecting member 50 is a unit of 4 units, but the bus duct of 3 wires, 5 wires, or other numbers of wires is also used. A configuration in which units corresponding to the number of lines are integrated may be used, or a configuration in which connection units are provided for each bus conductor of each line and the units are connected by one unit without integrating the units.

  Next, a procedure for connecting the bus ducts (the horizontal bus duct 110, the vertical bus duct 120, and the modified bus duct 130) with the connecting member 50 formed as described above will be described.

  Specifically, when the housings 20a and 20b (not shown) at the ends of the bus ducts to be connected are connected by a fixing means, the bus conductors (10 and 11) are brought into contact with each other and separated from each other by a predetermined interval in the Y direction. , Just as shown in FIG.

  Then, the connecting member 50 is moved downward (downward in the Z direction) with respect to the bus conductors (10, 11) arranged at predetermined positions, and the bus bars (10, 11) are passed through the insertion slits 51c into the connecting member 50. By inserting and arranging as shown in FIG. 6 and tightening the bolts of the clamping means 53, the bus bar conductors (10, 11) and the contact portions 52a1 of the connection conductors 52 come into contact with each other to make electrical connection. As a result, electrical connection between the pair of bus conductors is realized.

  Next, the operation of the bus duct power distribution system W when the rack 1 is inclined due to vibration such as an earthquake will be described with reference to FIGS. 7 and 8 and FIGS. 21 to 24 showing the configuration of the prior art.

Here, FIG. 7 is a schematic diagram for explaining a deformation operation when the rack 1 of the first embodiment receives vibration. FIG. 8 is a schematic diagram for explaining the state of the conductors inside the deformed bus duct 130 and the horizontal bus duct 110 when the rack 1 according to the first embodiment is deformed by receiving vibration.
FIG. 21 is a schematic diagram for explaining a bus duct power distribution system that is supported by the rack 1 of the prior art. FIG. 22 is a schematic diagram for explaining a state of conductors inside the deformed bus duct and the horizontal bus duct when the rack 1 of the bus duct power distribution system according to the prior art is deformed by receiving vibration. FIG. 23 is a schematic diagram for explaining a twisted state of conductors that are in contact with each other in the trunk of the bus duct when the rack 1 of the bus duct power distribution system according to the prior art is deformed by receiving vibration. FIG. 24 is a schematic diagram for explaining the deformation operation of the connecting portion between the deformed bus duct of the bus duct trunk line and the horizontal bus duct when the rack 1 of the bus duct power distribution system according to the prior art undergoes deformation operation under vibration.

  As shown in FIG. 7A, the rack 1 according to the first embodiment is a substantially rectangular structure constituted by a bottom surface 1a, a side surface 1b, and a top surface 1c. The side surface 1b rises from the bottom surface 1a in the vertical direction and supports the top surface 1c.

  When vibration is generated in the rack 1 due to factors such as an earthquake, the bottom surface 1a exhibits a vibration behavior similar to that of the floor surface FL, but the top surface 1c may exhibit vibration behavior different from that of the floor surface FL. In such a case, the distortion shown in FIG. When this distortion occurs, the side surface 1b of the rack 1 is tilted. Further, since vibration can occur in an unspecified direction, the side surface 1b of the rack 1 can tilt in an unspecified direction, but the racks 1 are adjacent to each other in the width direction of the rack 1 (Y direction in the figure). Therefore, it is highly possible that the amount of inclination of the rack 1 in the depth direction (X direction in the figure) is the largest. In the description of the first embodiment, the inclination in the X direction is assumed for easy understanding of the description.

  When the above-described distortion occurs in the rack 1, the bus duct main line 100 that is supported by the rack 1 is also affected by the distortion. However, the horizontal bus duct 110 and the vertical bus duct 120 receive the distortion due to the distortion. The effect of action is different.

  Since the horizontal bus duct 110 is mounted and fixed on the top surface 1c of the rack 1, the behavior of the vibration follows the top surface. Specifically, this is a behavior of parallel movement in an arbitrary direction within a plane parallel to the floor surface FL (in the substantially XY plane in the figure), and even if the horizontal bus duct 110 follows this, it is affected by distortion. There is nothing.

  On the other hand, since the vertical bus duct 120 is fixed to the side surface 1b of the rack 1 to obtain support, the vibration behavior follows the tilting operation of the side surface 1b of the rack 1. Specifically, the side surface 1b provided substantially vertically produces the inclination shown in FIG. 7 (b), and the vertical bus duct 120 itself also follows the inclination.

Since the bus conductor 10 inside the bus duct (horizontal bus duct 110, vertical bus duct 120) is a single metal plate having a predetermined thickness, its rigidity is very high, and it is an intentional load on a machine tool or the like. Unless it is applied, it is unlikely to be deformed by a stress that can normally be generated. For this reason, the bus conductors themselves follow the inclination of the bus ducts (the horizontal bus duct 110 and the vertical bus duct 120) themselves, thereby causing an inclination.
The vertical bus duct 120 may not be fixed from the side surface 1b, and may be configured to receive support from the floor surface FL, for example. In this case, since the horizontal bus duct 110 fixed from the top surface 1c of the rack 1 and one end of the vertical bus duct 120 are connected via the deformed bus duct 130, the end of the vertical bus duct 120 is connected to the top surface of the rack 1. Although it follows the movement of 1c, since the vertical bus duct 120 is supported on the floor surface FL at the other end, it follows the movement of the floor surface FL. Accordingly, even when the fixing is not obtained from the side surface 1b, the vertical bus duct 120 is inclined in the same manner as the inclination of the side surface 1b of the rack 1 described above.

  Here, compared with the prior art shown in FIGS. 21-24, the effect of the bus duct power distribution system of 1st Embodiment is demonstrated.

  As shown in FIG. 21, the conventional bus duct power distribution system includes a horizontal bus duct 110 disposed on the top surface 1c of the rack 1 and a vertical bus duct 120 disposed on the side surface 1b of the rack 1 (omitted in the drawing). And a modified bus duct 330 that connects the horizontal bus duct 110 and the vertical bus duct 120 (not shown in the figure). The modified bus duct 330 is the same as the modified bus duct 130 of the first embodiment except that the flexible conductor portion 30 is not provided on the conductor 11. That is, the conductor (bus conductor) 11 of the modified bus duct 330 has a horizontal bus conductor portion 11a and a vertical bus conductor portion 11b extending in the vertical direction from one end of the horizontal bus conductor portion 11a. .

  In the configuration of this prior art, when the rack 1 receives vibration and the bus duct main line 100 is inclined, the state shown in FIG. 22A is changed to the state shown in FIG. The bus conductor 11 is inclined and tilted in the (X direction).

  Specifically, in the prior art of FIG. 21, the end of the conductor (bus conductor) 10 of the horizontal bus duct 110 and the end of the conductor 11 of the modified bus duct 330 are fixed by the connecting member 50. The conductor 10 of the horizontal bus duct 110 is not inclined in the depth direction (X direction) of the rack 1. On the other hand, in this prior art, since the conductor 10 of the vertical bus duct 120 is inclined, the positional relationship between the pair of conductors sandwiched by the connecting member 50 is twisted. As shown in FIG. 23, at the connection portion between the horizontal bus duct 110 and the deformed bus duct 330, the end of the horizontal bus conductor portion 11 a of the conductor 11 of the deformed bus duct 330 is twisted with respect to the conductor 10 of the horizontal bus duct 110. Become.

  The horizontal bus bar conductor portion 11a of the conductor 11 of the deformed bus duct 330 that has been twisted as described above has a force in the direction of separating the paired connection conductors 52 against the clamping force by the clamping means 53 of the connection member 50. Act. As a result, the connection portion connected by the connection member 50 transitions from the state shown in FIG. 24A to the state shown in FIG. 24B, and the contact portion 52 a 1 of the connection conductor 52 and the horizontal bus bar of the conductor 11. There may occur a situation in which the conductor portion 11a (the horizontal bus bar conductor portion 11a that has received the propagation of strain from the vertical bus bar conductor portion 11b) is not sufficiently in contact or cannot be contacted completely. That is, in the bus duct trunk line of the prior art, a load larger than expected is applied to a relatively weak location (for example, a connection portion) due to the structure of the bus duct, and connection failure may occur.

  In contrast to the prior art shown in FIG. 21, in the bus duct power distribution system of the first embodiment, the flexible conductor portion 30 is formed on the conductor 11 of the modified bus duct 130. According to this configuration, even when the rack 1 receives vibration due to an earthquake or the like, distortion occurs, the side surface 1b of the rack 1 is inclined, and the flexible conductor portion 30 is deformed even when the bus duct main line 100 is inclined to follow this. The load caused by the tilt is absorbed. As a result, as shown in FIG. 8, the horizontal bus conductor portion 11a in the horizontal direction of the deformed bus duct (deformed portion) 130 is not subjected to the propagation of strain from the vertical bus conductor portion 11b in the vertical direction. The connecting portion of the deformed bus duct (deformed portion) 130 is kept in a normal state, and connection failure can be avoided.

  In addition, about the housing 20b of the deformation | transformation bus duct (deformation part) 130, it is good also as a normal housing structure with a steel plate, and good also as a structure covered with a flexible coating | covering. Particularly in data centers, it is important to be able to supply power to electronic devices even in unforeseen circumstances, and it is important to avoid as much as possible the poor connection between the bus duct bus conductors (conductors 10 and 11). Therefore, any design may be applied to the housing 20b itself as long as it does not deteriorate the connection of the bus conductors, and a housing having the same design as that of the conventional deformed portion may be used. May be prepared, or may be covered with a flexible member.

  Further, the direction of the inclination of the side surface 1b of the rack 1 can be generated in the same manner in the width direction of the rack 1 (Y direction in the figure), and the flexible conductor portion 30 can also absorb this action. is there. The same applies to the case where a displacement occurs in the vertical direction (Z direction in the figure), and the flexible conductor is adapted to the inclination of the bus duct main line 100 due to the distortion of the rack 1 in an arbitrary direction according to the first embodiment. The portion 30 can absorb the tilt.

  As described above, according to the first embodiment of the present invention, there is provided a bus duct power distribution system W that is supported by the rack 1 or the like and is provided with higher connection reliability. can do.

  In addition, this invention is not limited to 1st Embodiment mentioned above, A various change is possible within the range of the summary.

  For example, in the first embodiment described above, the flexible conductor (deformable conductor) 30 is provided in the vicinity of the corner of the conductor 11 of the deformed bus duct 130. However, the present invention is not limited to this. For example, the arrangement of the flexible conductor portion 30 may be designed in any arrangement relationship as long as it is close to the deformed bus duct (deformed portion) 130 or the deformed bus duct (deformed portion) 130. In particular, the flexible conductor portion 30 may be arranged in any manner as long as it is near the deformable portion and exhibits the effects of the present invention. For example, the flexible conductor 30 may be provided on the conductor 10 of the horizontal bus duct 110 (or the vertical bus duct 120).

Further, for example, as shown in FIG. 9, the flexible conductor portion 30 is located at the same position in the width direction (Y direction in the drawing) of the rack 1 as the horizontal bus conductor portion 11 a of the conductor 11 of the deformed bus duct 130. , May be arranged side by side.
FIG. 9 is a schematic diagram for explaining a first modified example of the deformed portion of the bus duct power distribution system of the first embodiment.

Further, for example, as shown in FIG. 10, the flexible conductor portion 30 may be alternately provided in the horizontal bus conductor portion 11 a and the vertical bus conductor portion 11 b among the conductors 11 of the modified bus duct 130, or a plurality of lines Of the bus conductors, at least one of the flexible conductor portions 30 may be arranged differently in the horizontal and vertical directions from the other lines. Further, for example, as shown in FIG. 11, the flexible conductor portions 30 are staggered with a predetermined distance shifted in the vertical direction (Z direction in the figure) with respect to the flexible conductor portions 30 of the adjacent conductors 11. It may be arranged. In addition, at least one of the multiple conductors may be provided so as to be displaced, that is, the flexible conductor 30 may be disposed without being parallel to the thickness direction of the conductor 11. Good.
FIG. 10 is a schematic diagram for explaining a second modified example of the deformed portion of the bus duct power distribution system of the first embodiment. FIG. 11 is a schematic diagram for explaining a third modified example of the deformed portion of the bus duct power distribution system of the first embodiment.

In particular, when configured as shown in FIG. 11 described above, the flexible conductor portion 30 can be accommodated in a space secured by the existing housing 20b as described below.
Specifically, the flexible conductor portion 30 and the vertical bus bar conductor portion 11b (or the horizontal bus bar conductor portion 11a) are integrally fixed by fastening means 70 such as a bolt. Therefore, an insulating member 60 is required to ensure insulation of the space for the bolts serving as the fastening means 70 and the portion where the flexible conductor portion 30 is disposed, but the flexible conductor portions are staggered as shown in FIG. Since the space occupied by the bolts is displaced in the Z direction by arranging 30, the flexible conductor portion 30 can be accommodated in the space secured by the existing housing 20b as shown in FIG. Thus, the flexible conductor 30 can be introduced easily and at low cost.
FIG. 12 is a schematic view showing a state in which the flexible conductor 30 and the vertical bus conductor 11b are fastened by the fastening means 70 in the third modification shown in FIG.

Alternatively, the flexible conductor portion 30 may be connected to the connection member 50 to be integrated. For example, as shown in FIG. 13, one end portion of the flexible conductor portion 30 may be connected to the connection member 50 and the other end portion may be connected to the vertical bus conductor portion 11 b.
FIG. 13 is a schematic diagram for explaining a fourth modification of the deformed portion of the bus duct power distribution system of the first embodiment.

Further, as shown in FIG. 14, both end portions of the flexible conductor portion (deformable conductor) 30 may be connected to the connection member 50. Since a flexible member can be easily attached when taking such a structure, workability | operativity improves. In this case, there is no need to provide the deformed bus duct 130, and the flexible conductor portion (deformable conductor) 30 itself constitutes the deformed portion.
FIG. 14 is a schematic diagram for explaining a fifth modified example of the deformed portion of the bus duct power distribution system according to the first embodiment.

  Further, for example, the present invention may be applied to a bus duct main line that is connected by a connection device shown in FIG. FIG. 15 is a schematic diagram illustrating a first modification of the connection structure between the conductors of the bus duct trunk line according to the first embodiment.

The connecting device 150 shown in the figure includes a conductive connecting member 151 as a connecting member for connecting between in-phase conductors of conductors to be connected ("conductor 10 and conductor 10" or "conductor 10 and conductor 11"), and an insulating separator. 152, a connection side plate 153 that sandwiches these members from the outside, and a pressing member 154 that is disposed outside the connection side plate 153, and is inserted into an insulating sleeve (not shown). The conductors 10 (or conductors 11) to be connected by tightening with the tool 156 are connected to each other. Reference numeral 157 denotes a cover member that covers the upper and lower open surfaces.
Here, the insulating separator 152 insulates between the conductor 10 (or the conductor 11) having a different phase including the conductive connecting member 151 and between the outermost conductor 10 (or the conductor 11) including the conductive connecting member 151 and the connection side plate 153. It is installed at the position to be.

The first embodiment is also applicable to a bus duct having a structure in which bus conductors (conductor 10 and conductor 11) as shown in FIG. 16 are brought into direct contact with each other and fastened by fastening means 80 such as a bottle.
FIG. 16 is a schematic diagram showing a second modification of the connection structure between the conductors of the bus duct trunk line of the first embodiment.

In the first embodiment described above, the case where the “deformable conductor” is formed by the flexible conductor portion 30 formed by superposing one or several flat braided wires is shown. However, the present invention is not limited to this, and a conductive foil-like material may be laminated to form an end that can be connected to another conductor, or the conductor (bus conductor) 11 may be a substantially flat single plate. The conductor 11 may be provided with a conductor portion inferior to the strength possessed by the shape of
For example, as shown in FIG. 17, an L-shaped conductor 11c2 (FIG. 17B) having a bent portion 31 formed by folding a single-plate bus conductor 11c1 (see FIG. 17A) and forming a substantially L shape. )) May be applied to the deformed portion. This is because the bending portion 31 is inferior in strength to the extent that it is extended by bending as compared with the case of a single plate, and thus becomes a relatively easily deformable portion. FIG. 17 is a schematic diagram for explaining another example of the configuration of the deformable conductor part among the conductors constituting the bus duct trunk line according to the first embodiment of the present invention.
Further, for example, the flexible conductor portion 30 may be deformable by being formed in a thin plate shape as compared with the horizontal bus bar conductor portion 11a (and the vertical bus bar conductor portion 11b).

  Further, in the first embodiment, the contents related to the connection between the bus conductors are mainly described with respect to the influence of the vibration of the rack 1, but the same effect can be obtained for other structures that are in electrical contact with the bus conductor. For example, a contact portion between the branch conductor 5b of the branch device 5 and the bus conductor 10 is also included.

  The rack 1 on which the bus duct main line 100 is placed may be a board, other fixtures, or the like, and may be any structure provided inside the building and capable of supporting the bus duct main line 100.

<< Second Embodiment >>
Next, a schematic configuration of the bus duct power distribution system according to the second embodiment of the present invention will be described with reference to FIGS.
Here, FIG. 18 is a schematic diagram for explaining the overall configuration of the bus duct power distribution system of the second embodiment. FIG. 19 is a schematic diagram showing the structure of the connection portion between the horizontal bus duct installed on the rack 1 of the bus duct trunk line constituting the bus duct power distribution system of the second embodiment and the modified bus duct. FIG. 20 is a schematic diagram illustrating a structure of a connection portion between a horizontal bus duct and a modified bus duct installed on the back of a ceiling of a bus duct main line constituting the bus duct power distribution system of the second embodiment.
In the second embodiment, the same reference numerals are assigned to the same components (and corresponding components) as those in the first embodiment for convenience of explanation. Moreover, below, only a different part from 1st Embodiment is demonstrated.

  As shown in FIG. 18, the bus duct power distribution system W ′ of the second embodiment includes the bus duct main line 100 disposed in the racks 1 arranged on the floor surface FL as in the first embodiment.

Further, in the bus duct power distribution system W ′ of the second embodiment, the horizontal bus duct 110 is disposed on the top surface 1c of the racks 1 arranged in a row via the mounting member 3 as in the first embodiment. Further, the horizontal bus duct 110 disposed in the rack 1 at one end portion (right end portion in the figure) of the rack row is connected to the vertical bus duct 120 via the modified bus duct 130 (see FIG. 18). The vertical bus duct 120 is connected to a horizontal bus duct 110 disposed behind the ceiling (position higher in the Z direction than the ceiling CL) via a deformed bus duct 130 penetrating the ceiling CL. Thus, in 2nd Embodiment, the bus duct trunk line 100 currently supported by the rack 1 is extended to the ceiling back.
Although not shown, the horizontal bus duct 110 disposed in the rack 1 at the other end of the rack row is connected to the side surface 1b of the rack 1 via the modified bus duct 130 as in the first embodiment described above. The arranged vertical bus duct 120 may be connected.

Also in the second embodiment, as shown in FIGS. 19 and 20, the conductor 11 of the deformed bus duct (deformed portion) 130 is provided with a flexible conductor portion (deformable conductor) 30. That is, the conductor 11 includes a horizontal bus conductor portion 11a extending in the horizontal direction (Y direction in the drawing) and a vertical bus conductor portion 11b extending in the vertical direction (Z direction in the drawing). And a flexible conductor portion 30.
In the example shown in FIG. 19, one end of the flexible conductor 30 is connected to one end of the horizontal bus conductor 11a, and the other end is connected to one end of the vertical bus conductor 11b. In the example shown in FIG. 20, the flexible conductor portion 30 is provided between the two vertical bus conductor portions 11b.

  Thus, also in 2nd Embodiment, the flexible conductor part (deformable conductor) 30 is provided in the deformation | transformation bus duct 130 of the bus duct trunk line 100. FIG. According to this configuration, even if the rack 1 that receives vibration due to an earthquake or the like is distorted and the side surface 1b of the rack 1 is inclined and the bus duct main line 100 is inclined to follow this, the flexible conductor portion ( The deformable conductor 30) can be deformed to absorb the load caused by the inclination. That is, the same effect as the first embodiment can be obtained in the second embodiment.

  In addition, this invention is not limited to each embodiment (1st Embodiment, the modification of 1st Embodiment, 2nd Embodiment) mentioned above, A various change is possible within the range of the summary. is there. For example, the present invention includes the specification specified by combining each configuration and partial configuration of each embodiment described above, the specification specified by changing the partial configuration of each embodiment, and the configuration of each embodiment. Bus conductors for distributing power to server racks other than bus duct conductors, including those specified by adding a partial configuration of the description examples, those specified by deleting the partial configuration of each embodiment A configuration in which a deformable conductor is provided in a deformable portion that connects each other is also included, and examples of other expansions and modifications are also included.

FL ... Floor CL ... Ceiling 1 ... Server rack 1a ... Bottom 1b ... Side 1c ... Top

3 ... Mounting member 3a ... Mounting surface 3b ... Side 3c ... Mounting surface

5 ... Branching device 5a ... Box part 5b ... Branching conductor 5c ... Lead-in wire

7 ... Fixing bracket

W, W '... bus duct power distribution system 10 ... conductor 11 ... conductor 11a ... horizontal bus bar conductor part 11b ... vertical bus bar conductor part 11c1 ... bus bar conductor 11c2 ... L-shaped conductor 30 ... flexible conductor part 31 ... bent parts 20a, 20b ... Housing 20a1 ... Plug-in hole

DESCRIPTION OF SYMBOLS 50 ... Connection member 51 ... Cover member 51a ... Side wall part 51b1, 51b2, 51b3 ... Insulation piece part 51c ... Insertion slit 51d ... Slit 52 ... Connection conductor 52a ... Main-body part 52a1 ... Contact part 52b ... Leg piece 53 ... Clamping means

60 ... Insulating member 70 ... Fastening means 80 ... Fastening means

DESCRIPTION OF SYMBOLS 100 ... Bus duct trunk line 110 ... Horizontal bus duct 120 ... Vertical bus duct 130 ... Deformation bus duct

DESCRIPTION OF SYMBOLS 150 ... Connection apparatus 151 ... Conductive connection member 152 ... Insulation separator 153 ... Connection side board 154 ... Pressing member 156 ... Fastening tool 157 ... Cover member

Claims (7)

A bus duct power distribution system in which a bus duct trunk line in which a plurality of bus ducts are connected at connection portions is arranged on racks arranged on the floor,
The plurality of bus ducts include a horizontal bus duct disposed in a substantially horizontal direction and a vertical bus duct disposed in a substantially vertical direction,
At least one of the horizontal bus duct and the vertical bus duct is supported by the rack,
The bus duct main line has a deforming portion that electrically connects the horizontal bus duct and the vertical bus duct,
A bus duct power distribution system, wherein a deformable conductor is provided in the deformed portion of the bus duct main line or a portion near the deformed portion.   The bus duct power distribution system according to claim 1, wherein the horizontal bus duct is mounted on the lined rack. A bus duct power distribution system in which a bus duct trunk line in which a plurality of bus ducts are connected at connection portions is arranged on racks arranged on the floor,
The plurality of bus ducts include a first horizontal bus duct and a second horizontal bus duct arranged in a substantially horizontal direction, and a vertical bus duct arranged in a substantially vertical direction,
At least one of the first horizontal bus duct and the vertical bus duct is supported by the rack,
The bus duct main line includes a first deforming portion that electrically connects the first horizontal bus duct and the vertical bus duct, and a second deforming portion that electrically connects the second horizontal bus duct and the vertical bus duct. ,
A bus duct power distribution system, wherein a deformable conductor is provided in the second deformable portion or a portion near the second deformable portion in the bus duct main line. A bus duct power distribution system in which a bus duct trunk line in which a plurality of bus ducts are connected at connection portions is arranged on racks arranged on the floor,
The plurality of bus ducts include a horizontal bus duct arranged in a substantially horizontal direction, a first vertical bus duct and a second vertical bus duct arranged in a substantially vertical direction,
At least one of the horizontal bus duct and the first vertical bus duct is supported by the rack,
The bus duct main line includes a first deforming portion that electrically connects the horizontal bus duct and the first vertical bus duct, and a second deforming portion that electrically connects the horizontal bus duct and the second vertical bus duct. ,
A bus duct power distribution system, wherein a deformable conductor is provided in the second deformable portion or a portion near the second deformable portion in the bus duct main line.   The bus duct power distribution system according to claim 1, wherein the deformable conductor is a flexible conductor.   The bus duct power distribution system according to any one of claims 1 to 4, wherein the deformable conductor is a bus bar conductor obtained by deforming a substantially flat bus bar conductor in a longitudinal direction and deforming it to a desired angle. The plurality of bus ducts include a plurality of bus conductors,
The bus duct power distribution system according to any one of claims 1 to 6, wherein the deformable conductors are arranged without being parallel to the thickness direction of the bus bar conductor.

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