JP6522398B2 - Rack power line device - Google Patents

Description

  The present invention relates to a power supply line device in which a power supply line is disposed at the top of a rack row for supplying power to a rack row in which a plurality of racks accommodating electronic devices such as servers are arranged. The present invention relates to a power supply line device of a rack having a function of detecting a connection failure in

In a data center with many rows of racks containing servers, the floor is doubled to form a free access floor, to accommodate communication lines and power cables, and to cool individual rows of racks. The form utilized as a cooling duct is widely adopted.
However, as the calorific value of communication equipment increases, the free access floor is mainly used as a cooling duct for cooling individual rack rows, and the power lines with heat generation are disposed on the ceiling or rack to A configuration has been proposed in which power is supplied to the server from above to improve the cooling efficiency (see, for example, Patent Document 1).
On the other hand, there is a connection failure detection device that detects a connection failure of a power supply line connection portion. For example, Patent Document 2 discloses a circuit breaker incorporating a connection failure detection circuit, and detects a connection failure generated at a connection portion between a first fitting and a second fitting based on potential difference information between the two. There is.

JP, 2012-104008, A Patent No. 5117908 gazette

In the configuration in which the power supply line is disposed above the rack, the area in which the free access floor can be used as a cooling duct can be expanded, so efficient cooling is possible.
However, with regard to the arrangement of power supply lines, the work of arranging the power supply lines on the rack will be at a high place and the wiring route will be longer, so it takes more time than the construction in the free access floor. , There was a problem that the burden on the contractor will increase. Furthermore, since the connecting portion between the power supply lines is also at the top of the rack, when a connection failure occurs, it is difficult to recognize it and maintenance is troublesome.

  Therefore, the present invention has been made in view of such problems. Even if power supply lines for supplying power to devices in the rack are provided along the rack row at the top of the rack, the connection of the power supply lines is also possible. It is an object of the present invention to provide a power supply line device of a rack which can easily detect a connection failure occurring in a part.

In order to solve the above problems, the invention according to claim 1 relates to a rack row in which a plurality of racks storing electronic devices are arranged in a row, and a power supply line for supplying power to devices in the rack along the rack row. Power supply line device of the rack that draws power supply lines branched from the power supply line into each rack to supply power to each electronic device, and the power supply lines are accommodated in a duct and arranged And the power supply line also has a connection part in accordance with the connection of the duct, and a sensor for obtaining voltage information of the power supply line is installed in the connection part, and the voltage information and sensor of the power supply line at the end of the rack row based on the voltage information from, e Bei connection failure detecting device for detecting a connection failure of the power supply line, further power supply line with made of copper bar formed in a strip shape, the connecting portion, the end of the copper bar is connected With the parts butt Made by clamped by the clamping member made of a conductive member of copper bars both abutted said laterally, the sensor the clamping member is characterized by comprising provided.
According to this configuration, since the connection failure detection device for detecting the connection failure from the voltage information of the power supply line is provided, if the connection failure occurs even if a large number of connection portions are provided on the power supply line disposed on the rack upper part It is possible to detect this, and it is possible to prevent a situation where the supply of power is interrupted due to heat generation or disconnection of the connection.
In addition, the power supply line can be connected by a simple operation of holding operation, the sensor can be attached by the connecting operation, and the apparatus can be configured by a simple operation.

According to the second aspect of the present invention, the power supply line for supplying power to the devices in the rack is disposed at the top of the rack along the rack row, with respect to the rack row in which a plurality of racks containing electronic devices are arranged. A power supply line device for a rack that draws power supply lines branched from a power supply line for each rack into the rack and supplies power to each electronic device, wherein the power supply lines are accommodated in a duct and disposed, The power supply line also has a plurality of connection parts, and a connection part is provided with a sensor for obtaining voltage information of the power supply line, and connection of the power supply line is made based on voltage information of any two places among the plurality of sensors. both have a connection failure detection device for detecting a failure, further power supply line with made of copper bar formed in a strip shape, the connecting portion is abutted the ends of the copper bars to be connected, which butt the Conduct the copper bar from the side Made by clamped by the clamping member consisting of members, the sensor the clamping member is characterized by comprising provided.
According to this configuration, since the connection failure detection device for detecting the connection failure from the voltage information of the power supply line is provided, if the connection failure occurs even if a large number of connection portions are provided on the power supply line disposed on the rack upper part It is possible to detect this, and it is possible to prevent a situation where the supply of power is interrupted due to heat generation or disconnection of the connection.
In addition, the power supply line can be connected by a simple operation of holding operation, the sensor can be attached by the connecting operation, and the apparatus can be configured by a simple operation.

According to the third aspect of the present invention, in the configuration according to the first or second aspect , the duct and the copper bar have a length united to the rack width as a basic unit and are connected and extended according to the number of racks provided in a row. It is characterized by
According to this configuration, even if the power supply line is formed of a copper bar, the power supply line can be easily extended according to the number of racks to be arranged, and the power supply line can be easily installed.

  According to the present invention, since the connection failure detection device for detecting the connection failure from the voltage information of the power supply line is provided, if the connection failure occurs even if a large number of connection parts are provided on the power supply line disposed on the rack upper part It is possible to detect this, and it is possible to prevent a situation where the supply of power is interrupted due to heat generation or disconnection of the connection.

It is the schematic which shows an example of the power supply line apparatus of the rack which concerns on this invention. It is an external appearance explanatory view of the rack row which has arranged the power supply line in the upper part. It is perspective explanatory drawing of the duct which accommodated the power supply wire. It is the perspective view which isolate | separated the connection part of the duct of FIG. It is a side view of a duct.

Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic view showing an example of a power supply line device of a rack according to the present invention, 1 is a distribution board, 2 is a rack, 3 is a power supply line, 4 is branched from a power supply line 3 and introduced into the rack 2 6 is a connection failure detection device, 7 is a branch breaker, 8 is an outlet bar provided with a plurality of outlets provided in the rack 2, and 9 is a connecting member disposed at the connecting portion of the power supply line 3 is there.
FIG. 1 shows a configuration in which three racks 2 are arranged in a row and the connection failure detection device 6 is provided for each of the racks 2. The power supply line 3 is disposed from the distribution board 1 and extends along the rack row on the top plate 2 a of the rack 2. Moreover, the structure which introduce | transduces two feeders 4 with respect to one rack 2 is shown.

  FIG. 2 is an external view of the rack row showing a state in which the power supply lines 3 are disposed on the rack. As shown in FIG. 2, a frame member 10 for holding the power supply line 3 is disposed on the top plate 2 a of each rack 2 arranged in a row, and is formed of a strip-like copper bar 15 via the frame member 10. The ducts 11 accommodating the power supply lines 3 are arranged in parallel along the rack row. The power supply line 3 is constituted by three copper bars constituting a single-phase three-wire electric path, and a total of four copper bars 15 including one spare line are accommodated in the duct.

The ducts 11 are formed by connecting duct members 110 of a length matched to the width of the rack 2, and the duct members 110 are also connected and extended in accordance with the number of rows of the racks 2. Further, the copper bar 15 is also divided into substantially the same length as the duct member 110, and is accommodated in the duct member 110 and connected in accordance with the connection of the duct member 110.
Further, an opening 12 is provided on the side surface of the duct 11 in accordance with the feed line introducing portion 2 b of the rack 2, and the feed line 4 branched from the power supply line 3 is drawn through the opening 12. Has been introduced.

  The feeder 4 is pulled out via the branch breaker 7, and the branch breaker 7 is installed in the branch box 13. The feeder 4 is drawn from below the branch box 13 and introduced into the rack 2. In addition, in FIG. 2, the backup circuit | line was provided in the power supply line 3, two circuits were arrange | positioned, and the structure which arranged two ducts 11 is shown. Moreover, although the branch box 13 is mounted | worn with respect to all the opening parts 12, the state which installed only one place here is shown. Reference numeral 5 denotes a connection box that accommodates the connection member 9.

3 to 5 are explanatory views of the duct 11, FIG. 3 shows a state in which the duct member 110 is connected by the connecting member 9, FIG. 4 shows a state in which the connecting member 9 is separated, FIG. There is. As shown in FIG. 4, the connecting portion of the duct members 110 is provided with a notch 11 a at an end portion of the duct member 110 at a side portion, and an opening 17 for mounting the connecting member 9 is formed. Then, the copper bar 15 which is accommodated in the duct member 110 is disposed slightly shorter than the end face of the duct member 110, face each other at a copper bar 15 with each other a gap slightly when combined thrust duct member 110 to each other It is configured to
On the other hand, as shown in FIGS. 3 and 4, the copper bar 15 at the end of the duct 11 is connected with the electric wire 16 as a sensor for detecting a voltage. Although an end of the duct 11 is connected to a power supply line 3 provided from the distribution board 1 or a power supply line supplied to another rack row, it is omitted here.

As shown in FIG. 4, the connecting member 9 has four notches 9a for inserting the copper bars 15 in the back, and four copper bars 15 can be inserted into the respective notches 9a to be held. There is. Moreover, the electric wire 19 as a sensor which detects a voltage is connected to the front surface. As shown in FIG. 5, a metal clamping piece 18 is disposed inside each notch 9a, and by inserting the connecting member 9 into the duct 11 from the side, both copper bars 15 in the facing state are inserted. At the same time, the copper bars 15 are connected to each other. The electric wire 19 is screwed and connected to the sandwiching piece 18.
FIG. 3 shows the state of being connected in this way, and as shown in FIG. 1, the respective electric wires 16 and 19 are connected to the connection failure detection device 6.

The connection failure detection operation of the power supply line device of the rack configured as described above is as follows. However, for convenience of explanation, the three connection failure detection devices 6 shown in FIG. 1 are referred to as the first detection device 6a, the second detection device 6b, and the third detection device 6c from the upstream side close to the distribution board 1; The three duct members 110 constituting the present invention will be described from the upstream side as a first duct member 110a, a second duct member 110b, and a third duct member 110c.
As shown in FIG. 1, the first detection device 6a is connected from the voltage information of the copper bar 15 itself accommodated in the first duct member 110a and the voltage information of the first connecting member 9 to which the copper bar 15 is connected. Determine the failure occurrence. Therefore, it can be recognized by this determination that a connection failure has occurred between the copper bar 15 in the first duct member 110 a and the first connection member 9.

Further, the second detection device 6b obtains voltage information of the connection members 9 at both ends of the second duct member 110b and determines the occurrence of connection failure. Therefore, it can be recognized from this determination that a connection failure has occurred in at least one of the connection parts at the left and right ends of the copper bar 15 in the second duct member 110b.
Then, the third detection device 6c determines a connection failure from the voltage information of the second connecting member 9 to which the copper bar 15 accommodated in the third duct member 110c is connected and the voltage information of the copper bar 15 itself. ing. Therefore, it can be recognized from this determination that a connection failure has occurred between the copper bar 15 in the third duct member 110 c and the second connection member 9.

As described above, even if a large number of connection portions are provided in the power supply line 3 disposed in the upper part of the rack 2, if a connection failure occurs, it can be detected and heat is generated or disconnected to supply power. It can prevent the situation of stopping.
Further, the connection by the connection member 9 can connect the power supply line 3 by a simple operation of holding operation, can attach the electric wire 19 for detecting a voltage by the connection operation, and can configure the apparatus by a simple operation.
Furthermore, even if the power supply line 3 is configured by the copper bar 15, by making the length of the copper bar 15 substantially equal to the width of the rack 2, the power supply line 3 can be easily extended according to the number of racks 2 to be arranged. And the power supply line 3 can be easily installed.

In the above embodiment, although the connection failure detection device 6 is disposed for each duct member 110, a rack row is formed with respect to the duct 11 connected and formed without providing a voltage detection unit in the middle of the connected duct 11. Alternatively, only one connection failure detection device 6 may be arranged. In this case, although the determination is made based on voltage information at two ends of the duct 11, it can be recognized that a connection failure occurs at any place of the connected ducts 11.
In addition, the connection failure detection device 6 may be installed on the rack top plate 2a or any part of the rack row, and at that time, alarm buzzers and the like for notifying the connection failure occurrence collectively It should be installed in

  2 · · · Rack · 3 · · power line, 6 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · copper bar 16. Clamping member), 19 ··· Electric wire (sensor), 110 · · Duct member.

Claims (3)

A power supply line for supplying power to the devices in the rack is disposed at the top of the rack along the rack row in a rack row in which a plurality of racks storing electronic devices are arranged, and for each rack A power supply line device for a rack that draws power supply lines branched from the power supply lines into the rack and supplies power to each electronic device,
The power supply line is accommodated in a duct and disposed, and along the connection of the duct, the power supply line also has a connection portion, and a sensor for obtaining voltage information of the power supply line is installed at the connection portion. ,
Based on the voltage information from the voltage information and the sensor of the power line at the end of the rack row, Bei give a connection failure detecting apparatus for detecting a connection failure of the power supply line,
Further, the power supply line is formed of a strip-shaped copper bar, and the connection portion electrically conducts the butted copper bars from the side in a state where the ends of the copper bars to be connected are butted. It is made to be pinched by the pinching member which consists of members,
A power supply line device for a rack , wherein the sensor is provided to the holding member . A power supply line for supplying power to the devices in the rack is disposed at the top of the rack along the rack row in a rack row in which a plurality of racks storing electronic devices are arranged, and for each rack A power supply line device for a rack that draws power supply lines branched from the power supply lines into the rack and supplies power to each electronic device,
The power supply line is accommodated and disposed in a duct, and the power supply line also has a plurality of connection parts in accordance with the connection of the duct in the middle, and a sensor for obtaining voltage information of the power supply line is provided in the connection part. Installed,
The more groups the voltage information of optional two points of the sensor, have a connection failure detecting device for detecting a connection failure of the power supply line,
Further, the power supply line is formed of a strip-shaped copper bar, and the connection portion electrically conducts the butted copper bars from the side in a state where the ends of the copper bars to be connected are butted. It is made to be pinched by the pinching member which consists of members,
Power line device in the rack you characterized by comprising said sensor is provided in the clamping member. The power supply of a rack according to claim 1 or 2, wherein the duct and the copper bar have a length corresponding to a rack width as a basic unit, and are connected and extended according to the number of the racks arranged in a row. Wire equipment.

Images