JP2017108563A - High voltage power receiving facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high voltage power receiving facility which inhibits increase of a housing size to enable installation in a narrow space.SOLUTION: A high voltage power receiving facility 10 includes: a facility body 100 in which an internal device, which transforms electric power from an electric power system to supply the electric power to an electric device used by a user, is housed in a housing 110; and an accumulator battery 50 for storing the electric power to the electric device. The accumulator battery 50 is disposed on a top surface 114 of the housing 110 while being housed in a protection cover 60. The accumulator battery 50 housed in the protection cover 60 is supported by a support member 114b provided on the top surface 114, and a gap S2 is provided between the protection case 60 and the top surface 114.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a high-voltage power receiving facility that is installed in a building and has a function of converting a high voltage from an electric power system to a low voltage and supplying power to an electrical device in the building.

For buildings such as stores, facilities, and buildings where the company is located, convert high voltage such as AC 6600V from the distribution line of the power system to low voltage such as AC 200V or AC 100V, and A high-voltage power receiving facility having a function of supplying power to the equipment is installed.
This high-voltage power receiving facility may be provided with a storage battery for storing electricity during a midnight power time zone where the electricity bill is inexpensive and using the power stored during a time zone other than the midnight power time zone.
As an example of such a high-voltage power receiving facility, those described in Patent Documents 1 and 2 are known.

  The power reduction system for collective housing described in Patent Document 1 includes a storage battery for storing electrical energy generated by a solar battery and electrical energy from a cubicle, and the electrical energy generated by the solar battery is stored in the storage battery as needed. In the case where cheap electric power that is stored and charged with a late night discount charge is supplied from the cubicle to the storage battery, and sufficient electric energy is stored in the storage battery, the electric power from the storage battery is preferentially (selectively) distributed. It is supplied to the electrical panel.

  Moreover, the storage battery storage box with a wiring case described in Patent Document 2 stores a plurality of power storage units including a storage battery that stores nighttime power (midnight power) and discharges the stored power during the daytime when power consumption is large. In the case where there is no storage battery chamber, a frame body that secures a wiring space on the electrode surface of each storage battery is provided at the front peripheral edge of the storage box body, and a cover is provided detachably at the front opening of this frame body It is housed in a cubicle type storage battery housing box.

JP-A-2005-287300 JP 2003-297319 A

  However, in Patent Documents 1 and 2, a storage battery is effectively used as a power supply source. However, when the storage battery is installed in an existing high-voltage power receiving facility, it needs to be added to the outside. If the high-voltage power receiving equipment is installed on the roof of the building, there may be sufficient space, but if it is installed on the site of the building, it may not be possible to secure the space. In addition, even when a new high-voltage power receiving facility is installed, it is necessary to include a storage battery and a power supply device that charges the storage battery or supplies power from the storage battery to the load. The width will increase.

  Therefore, an object of the present invention is to provide a high-voltage power receiving facility that can be installed even in a small space by suppressing an increase in housing size.

  The high-voltage power receiving facility of the present invention transforms the power from the power system and stores the power supply to the electrical equipment main body in which the internal equipment that supplies the electrical equipment used by the consumer is housed in the casing. A storage battery, wherein the storage battery is disposed on a top surface of the housing.

  According to the high-voltage power receiving facility of the present invention, the storage battery that stores the power to the electrical device is disposed on the top surface of the casing of the facility body that transforms the power from the power system and supplies the electrical device to the electrical device. A storage battery can be installed without expanding the width and depth of the equipment body.

  It is desirable that the top surface has a support member that supports the bottom surface side of the storage battery in a state where a gap is provided between the top surface and the storage battery. If a gap is provided between the storage battery and the top surface, the wiring between the storage battery and the equipment body can be passed through the gap, so that the wiring is easy.

  The supporting member is preferably an eyebolt for hanging the equipment body. The storage battery can be firmly supported by supporting the storage battery on an eyebolt that can withstand the strength with which the heavy equipment body is suspended. Moreover, since the eyebolt used as the supporting member used when installing the equipment main body is used, when the storage battery is installed on the top surface, an operation such as removing the supporting member is unnecessary.

  When the storage battery is accommodated by the protective cover, the storage battery can be protected from the external environment, and the weather resistance can be improved. Moreover, since the storage battery cannot be seen from the outside, the design can be improved.

  It is preferable that the bottom surface of the protective cover includes a box-shaped fitting portion that covers the supporting member, and a fastening member that fastens the fitting portion and the supporting member. The fitting part provided on the bottom surface of the protective cover covers the supporting member, and the fitting part and the supporting member are fastened by the fastening member, so that the storage battery stored in the protective cover can be moved in the front, rear, left and right directions and up and down. It is possible to prevent displacement in the direction.

  It is desirable that the protective cover includes a cover main body and a vent hole that communicates the inside of the cover main body with the outside. Since heat from the storage battery can be dissipated to the outside through the vent, an increase in the temperature of the storage battery can be suppressed.

  It is desirable that vent holes are formed in the floor surface of the cover body. Since the gap between the cover main body and the top surface of the equipment main body is shaded by the cover main body, the air is relatively cooler than the surroundings. Therefore, after taking in the air cooled from the vent provided in the floor surface of the cover main body into the cover main body, cooling the storage battery, and discharging it from the vent, the storage battery can be efficiently cooled.

  When the storage battery is suspended by the suspension member from the lid portion of the protective cover, the storage battery can be lifted together with the lid portion by pulling the suspension member, so that the storage battery can be easily replaced.

  When the outline shape of the outer shape of the storage battery is formed within the range of the top surface, the storage battery does not protrude from the top surface, so that the center of gravity of the storage battery is within the range of the top surface. Therefore, the storage battery can be arranged on the top surface in a stable state.

  The top surface is preferably formed in an inclined state.

  It is desirable that the storage battery is a battery for an electric vehicle in which the capacity for full charge is reduced by 20% or more from the rating. Even a battery for an electric vehicle having a full charge capacity of which performance has decreased by 20% or more from the rating is sufficient for supplying electric power to the electric device. Therefore, by using a battery having a reduced full charge capacity as a storage battery, the high voltage power receiving facility of the present invention can be made environmentally friendly.

  According to the high-voltage power receiving equipment of the present invention, the storage battery can be installed on the top surface of the equipment main body without expanding the width and depth of the equipment main body, so that it can be installed in a small space by suppressing the increase in the housing size. It is.

It is a figure for demonstrating the electrical connection of the high voltage power receiving equipment which concerns on embodiment of this invention. It is a front view of the high voltage | pressure power receiving equipment shown in FIG. FIG. 3 is a right side view of the high-voltage power receiving facility shown in FIG. 2. FIG. 3 is an enlarged front view of the upper part in a state where it passes through a protective cover of the high-voltage power receiving facility shown in FIG. 2. FIG. 5 is an enlarged right side view of the upper portion of the high-voltage power receiving facility shown in FIG. 4. It is an enlarged front view for demonstrating the connection structure of the installation main body shown in FIG. 4, and a protective cover. It is an expansion right view for demonstrating the connection structure of the installation main body and protective cover shown in FIG. It is the figure which looked at the bottom face of the protective cover shown in FIG. 1 from upper direction.

A high-voltage power receiving facility according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the high-voltage power receiving facility 10 is called a cubicle, and is installed in a building such as a store, a facility, or a building in which a company occupies, and supplies electric power to electrical equipment used in the building. Is. The high-voltage power receiving facility 10 according to the present embodiment is installed in a convenience store (hereinafter abbreviated as a convenience store) C.

The high-voltage power receiving facility 10 according to the present embodiment includes a transformer unit 20, a bidirectional power supply unit 30, a remote monitoring unit 40, and a storage battery 50.
The transformer 20 has a function of receiving AC 6600V from the power system and transforming it into AC of 3 phase 200V or single phase 100V or 200V.
The bidirectional power supply unit 30 transforms the alternating current from the transforming unit 20 into an alternating current, or transforms the direct current to a voltage set in a range from 0V to 400V, and supplies it to the electrical equipment in the convenience store C. The alternating current from the transformer 20 is converted to direct current to charge the storage battery 50, the direct current from the storage battery 50 is converted to alternating current, or converted to each voltage of the direct current and supplied to the electrical equipment in the convenience store C. It has a function.
In addition, the bidirectional power supply unit 30 has a function of monitoring the state of charge of the storage battery 50, charging if the storage battery 50 is not fully charged, and discharging from the storage battery 50 if fully charged.

The remote monitoring unit 40 has a function of notifying the remote location where the supervisor is located through the mobile phone line when an abnormality such as a voltage drop or overcurrent is detected in the AC or DC from the bidirectional power supply unit 30. doing.
The storage battery 50 is a lithium ion battery. The storage battery 50 can be a battery used in an electric vehicle. In particular, when the storage battery 50 is repeatedly charged and discharged, the capacity at the time of full charge (hereinafter referred to as “storage capacity”) cannot be charged to the rating, and even the full charge can only be reduced by 20% or more from the rating. Can be. In the present embodiment, the storage battery 50 is a lithium ion battery that is resistant to repeated charging and discharging, but other storage batteries may be used as long as they can be charged.

  As shown in FIGS. 2 to 3, the high-voltage power receiving facility 10 includes a transformer unit 20, a bidirectional power source unit 30, and a remote monitoring unit 40 as an internal device. ing. The equipment body 100 is constituted by a dihedron.

The housing 110 is formed in a metal box shape. The housing 110 is disposed such that the front surface 111 can be opened and closed by two doors 111a. The right door 111a of the two doors 111a is formed with a window 111b for observing an internal meter or a monitoring liquid crystal panel.
A door 112a is also formed on the right side surface 112 of the housing 110 so as to be openable and closable. A duct 113a with a ventilation fan with an opening facing downward is disposed at the upper part of the left side surface 113 of the housing 110.

The top surface 114 of the housing 110 is formed so as to be inclined downward from the front portion 114f toward the rear portion 114r.
Further, the top surface 114 has support members 114b at two places on the front part of the support member and two places on the rear part. In the present embodiment, as the supporting member 114b, a hanging metal fitting for hanging by a crane truck or the like when the equipment main body 100 is installed is used. The supporting member 114b supports the storage battery 50 from the bottom surface side. The supporting member 114b is formed by eyebolts.

A storage battery 50 is arranged on the top surface 114. The storage battery 50 is covered with a protective cover 60.
The protective cover 60 is formed in a box shape having a rectangular shape in plan view in accordance with the contour shape when the top surface 114 is seen in plan view, and communicates the cover main body 61 surrounding the storage battery 50 with the inside of the cover main body 61 and the outside. Vent 62 to be provided.

The cover main body 61 includes a lid portion 611, a box portion 612, a base portion 613 on which the storage battery 50 is placed, and a suspension member 614 that suspends the base portion 613 from the lid portion 611.
The lid portion 611 is attached to the box portion 612 with a thumbscrew. On the floor surface 61a of the box portion 612, a gap member 6121 for securing a gap S1 between the storage battery 50 and the floor surface 61a is disposed.

  The gap member 6121 includes a leg member 6121a serving as a leg that supports the base 613, and a fastening member 6121b that fixes the leg member 6121a to the floor surface 61a. The leg member 6121a is formed in an elongated shape along the width direction (left-right direction) of the floor surface 61a. The leg member 6121a is a rod-shaped member having a crank-shaped cross section. A cross section in the width direction of the leg member 6121a is formed along the floor surface 61a, then rises vertically, and is formed along the bottom surface of the pedestal 613.

A fixing member 6122 is arranged on the bottom surface 61b of the box portion 612 in accordance with the position of the supporting member 114b. The fixing member 6122 has an open bottom surface and an upper surface fixed to the bottom surface 61b of the box portion 612, and fastens the box-shaped fitting portion 6122a covering the supporting member 114b, the fitting portion 6122a, and the supporting member 114b. Fastening member 6122b.
The fastening member 6122b is formed by a bolt that penetrates a through-hole formed in the opposite side surface of the fitting portion 6122a and a nut into which the bolt is screwed.

The base portion 613 is formed by forming a peripheral wall portion on a rectangular plate having a size slightly larger than that of the storage battery 50.
The hanging member 614 is fixed to the lid portion 611 in a state of penetrating the lid portion 611, and the lower end thereof is connected and fixed to the base portion 613 by a nut. The suspension member 614 can be an eyebolt. The storage battery 50 is mounted on the pedestal 613, the pedestal 613 is supported by the gap member 6121, and the protective cover 60 is supported by covering the fixing member 6122 on the supporting member 114b. It is installed in an inclined state.

  As shown in FIG. 8, punching grilles 6123 in which ventilation holes are formed are arranged on rectangular openings provided at four locations on the floor surface 61 a of the box portion 612.

  The vent 62 is a weather cover that extends rearward from the back surface 61c of the cover body 61 and has an opening facing downward.

In the high-voltage power receiving facility 10 according to the embodiment of the present invention configured as described above, when the storage battery 50 housed in the protective cover 60 is installed in the facility body 100, first, the cover body shown in FIGS. The fitting member 6122a of the fixing member 6122 protruding downward from the bottom surface 61b of the 61 is put on the supporting member 114b.
Next, the bolt of the fastening member 6122b is caused to enter the inside from the side surface of the fitting portion 6122a, and after the ring portion of the supporting member 114b is inserted, the bolt is protruded from the opposite side surface. And the protective cover 60 in which the storage battery 50 was accommodated is fixed to the installation main body 100 by fastening a nut to the thread part of the volt | bolt which protruded from the fitting part 6122a.

  As shown in FIG. 6, the fitting portion 6122a fixed to the bottom surface 61b of the cover body 61 covers the support member 114b, and a bolt and a nut that are the fastening members 6122b are fastened to fix the fixing member 6122 to the support member. Since the member 114b is fixed, it is possible to prevent the storage battery 50 housed in the protective cover 60 from shifting in the front-rear and left-right directions and the up-down direction.

As shown in FIGS. 4 and 5, the storage battery 50 is supported by the support member 114b so that the storage battery 50 is provided with a gap S2 between the protection cover 60 and the top surface 114. 50 bottom surfaces can be supported.
Since the supporting member 114b is provided on the top surface 114 of the equipment main body 100 so as to endure even when the heavy equipment main body 100 is suspended, the storage battery 50 accommodated in the protective cover 60 is mounted on the supporting member 114b. Even if placed, the supporting member 114b can be firmly supported.
Therefore, the protective cover 60 heated by heat dissipation or heat transfer from the storage battery 50 can be radiated to the gap S2 between the bottom surface 61b and the top surface 114. Moreover, it is not necessary to newly provide the metal fitting for supporting the storage battery 50 by utilizing the eyebolt when hanging the equipment main body 100 as the supporting member 114b.

  Thus, by making the eyebolt when suspending the equipment main body 100 function as the support member 114b that supports the storage battery 50 housed in the protective cover 60, a large capacity capable of supplying power to the electrical equipment in the building. The storage battery 50 can be easily added to an existing high-voltage power receiving facility.

On the other hand, in the protective cover 60, the gap member 6121 supports the storage battery 50 in a state in which a gap S1 is provided between the base 613 on which the storage battery 50 is placed and the floor surface 61a of the protective cover 60. The heat can be radiated from the storage battery 50 to the gap S1.
At this time, as shown in FIG. 8, the floor 61 a of the cover body 61 is provided with a punching grill 6123, so that it is shaded by the protective cover 60 and cools compared to the upper side and the side of the protective cover 60. The lower air (air in the gap S2) enters the inside of the protective cover 60 through the vent hole of the punching grill 6123. The air heated by the heat radiation from the storage battery 50 rises in the protective cover 60 and is discharged from the vent 62, whereby the storage battery 50 can be efficiently cooled.

  Further, since the leg member 6121a of the gap member 6121 is disposed on the floor surface 61a of the protective cover 60 so as to correspond to the position supported by the support member 114b, the point supported by the support member 114b is a surface. Can receive.

  Moreover, since the wiring from the storage battery 50 to the equipment body 100 and the wiring from the equipment body 100 to the storage battery 50 can be passed through the gap S2, wiring is easy.

  Thus, since the storage battery 50 which stores the electric power to an electric equipment is arrange | positioned on the top | upper surface 114 of the housing | casing 110 in the equipment main body 100, the storage battery 50 does not expand the breadth and depth of the equipment main body 100. Can be installed. Therefore, the high-voltage power receiving facility 10 can be installed in a small space by suppressing an increase in the facility body 100.

In addition, as shown in FIG. 1, this storage battery 50 can store midnight power and supply it to the electric equipment in the convenience store C during the daytime. While being able to suppress, an electricity bill can be suppressed.
In particular, at convenience store C, there are many stores that are open 24 hours a day, so even if the area where convenience store C is located has a power outage, it is necessary to operate a refrigerator or the like for storing food. In such a situation, the high-voltage power receiving facility 10 can supply power from the storage battery 50 to the electrical equipment of the convenience store C even in the event of a power failure. Therefore, in the event of a disaster, the convenience store C can be used as a food storage for residents living in the affected area. Can function.
In addition, when the high-voltage power receiving equipment 10 becomes widespread, the demand for power by the storage battery 50 is small, and the number of facilities that charge late-night power that may be wasted and supply it in the daytime increases. , CO ₂ reduction and electricity self-sufficiency environment can be created.

In the present embodiment, the storage battery 50 is a battery whose capacity at full charge has decreased by 20% or more from the rating. However, an electric vehicle is considered to have a lifetime when the capacity at full charge is reduced by 30% from the rating. Therefore, when a battery for an electric vehicle is used as the storage battery 50, it is desirable to use a battery whose capacity at full charge is reduced by 30% from the rating. The storage battery 50 that is considered to have a life and is a waste battery is sufficient to supply to the consumer's electrical equipment even if the storage capacity is reduced to 70%. Therefore, by reusing the waste battery used in the electric vehicle as the storage battery 50, the high voltage power receiving facility 10 can be made environmentally friendly.
Further, by reusing the waste battery as the storage battery 50, the purchase cost can be reduced compared to purchasing a new storage battery.

  A storage battery 50 used in an electric vehicle is installed at the center of the bottom surface of the body of the vehicle. Therefore, the storage battery 50 is formed with a low height. Therefore, even if the storage battery 50 is mounted on the top surface 114 of the equipment main body 100, for example, the center of gravity can be kept low as compared with a stack of lead storage batteries.

  Furthermore, since the outer shape of the storage battery 50 is formed within the range of the top surface 114, the storage battery 50 does not protrude from the top surface 114. Therefore, since the center of gravity of the storage battery 50 is within the range of the top surface 114, the storage battery 50 can be disposed on the top surface 114 in a stable state.

  By supplying direct current from the storage battery 50 to the electric device that operates with direct current through the bidirectional power supply unit 30, the conversion efficiency is higher than when converting from alternating current to direct current, so that power can be supplied with high efficiency. . Further, it is possible to reduce wiring by supplying direct current with two lines rather than supplying alternating current with three-phase three-wires. Further, the wiring cost can be reduced by setting the three wirings to two.

Next, a state when the storage battery 50 built in the high-voltage power receiving facility 10 is replaced will be described.
When the storage battery 50 is repeatedly charged and discharged and reaches the end of its life, first, the lid portion 611 of the protective cover 60 is brought into a state where it can be removed from the box portion 612 by removing the thumbscrew.
Next, the hook of the wire is hung on the ring-shaped head of the suspension member 614 protruding from the lid 611, and the wire is pulled up by a crane that winds up the wire. By doing so, the base part 613 connected and fixed to the lower end of the suspension member 614 is pulled up.

  In this way, the storage battery 50 is lifted by the suspension member 614 from the lid portion 611, and the storage battery 50 is lifted together with the lid portion 611 and the base portion 613 through which the suspension member 614 penetrates. The storage battery 50 can be easily removed from the protective cover 60 to the outside. And after replacing | exchanging the storage battery 50 of the base part 613 with the new thing, the storage battery 50 is installed in the box part 612 of the protective cover 60 by operation opposite to taking out.

  The present invention can be suitably used when newly installing a high-voltage power receiving facility or when adding a storage battery to an existing high-voltage power receiving facility.

DESCRIPTION OF SYMBOLS 10 High voltage power receiving equipment 20 Transformer part 30 Bidirectional power supply part 40 Remote monitoring part 50 Storage battery 60 Protective cover 61 Cover main body 611 Cover part 612 Box part 6121 Gap member 6121a Leg member 6121b Fastening member 6122 Fixing member 6122a Fitting part 6122b Fastening Member 6123 punching grill 613 base portion 614 suspension member 61a floor surface 61b bottom surface 61c back surface 62 vent 100 equipment body 110 housing 111 front surface 111a door 111b window 112 right side surface 112a door 113 left side surface 113a duct 114 top surface 114b supporting member 114f front 114r rear C convenience store S1, S2 gap

Claims (11)

An equipment body in which an internal device that transforms electric power from an electric power system and supplies to an electric device used by a consumer is housed in a casing, and a storage battery that stores electric power to the electric device,
The storage battery is a high-voltage power receiving facility disposed on the top surface of the housing.   The high-voltage power receiving facility according to claim 1, wherein the top surface includes a support member that supports a bottom surface side of the storage battery in a state where a gap is provided between the top surface and the storage battery.   The high-voltage power receiving facility according to claim 2, wherein the supporting member is a hanging eyebolt for the facility main body.   The high-voltage power receiving facility according to claim 2 or 3, wherein the storage battery is housed by a protective cover.   The high-voltage power receiving facility according to claim 4, further comprising: a box-shaped fitting portion that covers the support member; and a fastening member that fastens the fitting portion and the support member on the bottom surface of the protective cover.   The high-voltage power receiving facility according to claim 4 or 5, wherein the protective cover includes a cover main body and a vent hole that communicates the inside of the cover main body with the outside.   The high-voltage power receiving facility according to claim 6, wherein a vent hole is formed in a floor surface of the cover body.   The high-voltage power receiving facility according to any one of claims 4 to 7, wherein the storage battery is suspended from a lid portion of the protective cover by a suspension member.   The high-voltage power receiving facility according to any one of claims 1 to 7, wherein the storage battery has an outer contour shape formed within the range of the top surface. The top surface is formed in an inclined state,
The high-voltage power receiving facility according to any one of claims 1 to 9, wherein the storage battery is installed in an inclined state along the top surface.   The high-voltage power receiving facility according to any one of claims 1 to 10, wherein the storage battery is a battery for an electric vehicle having a fully charged capacity with a performance drop of 20% or more from a rating.

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