JP5673739B2 - Power supply means provided on distribution board - Google Patents

Description

The present invention relates to a distribution board that is used in an electric circuit and includes power supply means for supplying power to a load circuit. In particular, the branch switch has substantially the same external shape and can be attached to the branch switch. Thus, the present invention relates to a distribution board provided with power supply means for converting an alternating current power source into a direct current power source and supplying the direct current power source to a load circuit from a load side terminal.

Conventionally, as shown in Patent Document 1, in a distribution board that houses a main breaker, a plurality of branch breakers, etc., it is installed at a branch breaker mounting portion by a case having substantially the same shape as the branch breaker, and the main breaker operates. When there is a power failure, the battery built in the case is used as a power source, the lamp provided in the case is turned on to illuminate the surroundings, and equipped with a power failure safety light to facilitate the return operation of the main breaker, etc. was there.

As shown in FIG. 15, the front cover 8 of the distribution board 4 has a plurality of operation windows 11 and 12 so that the operation handles 9 and 10 of the main breaker 2 and the branch breaker 3 are exposed. Is formed, and an opening 13 is provided on the upper surface of the case 5 of the power failure protection lamp 1 facing the operation window 12 for the branch breaker, and a storage portion 15 for the battery 14 is provided in the opening. A lid 16 is provided in the opening 13 so as to be freely opened and closed. As shown in FIG. 3 of Patent Document 1, the lid body 16 is provided with a lamp 17, a knob 18, and a test button 19 on the front surface, a rectangular substrate 20 is fixed on the back surface, and a coin-type lithium on the substrate 20. A battery holder 21 to which the battery 14 is attached is mounted together with an electronic circuit.

Japanese Patent Laid-Open No. 2003-348717 (10th term, Fig. 2, Fig. 3)

However, in the conventional blackout safety light as shown in Patent Document 1, the lamp and the battery are provided in the same case, and the lamp is provided within the width of the branch breaker, so that the light source becomes small. Because the power source of the lamp is a coin-type lithium battery, the amount of light is reduced due to the capacity of the power source. As a result, the reach of light is limited to the vicinity of the lamp. For this reason, for example, when the main circuit breaker (main switch) operates at night and a power failure occurs, it is difficult to reach the place where the distribution board is installed. It was.

Also, in the vicinity of the distribution board, the spotlight is irradiated from the lamp part of the security light in a dark state, so when facing the distribution board, it becomes dazzling and has a backlight effect, so that it is not dazzled by hand. There was a problem that it was difficult to perform the restoration work, for example, it was necessary to perform the restoration work of the breaker while blocking the block.

Accordingly, the object of the present invention is to form an external circuit compatible with the branch switch as well as a branch switch that supplies normal AC power to the load side circuit, and to perform an on / off operation of the electric circuit from the outside. , A power supply means for supplying DC power to a load device located away from the branch switch from the load side terminal, and a distribution board capable of supplying AC power or DC power according to the load circuit Is to provide.

To achieve the above object, the invention of claim 1, formed a branching switch and external shape housing is disposed in a distribution board in substantially the same shape, in the housing containing, the branch-off A power supply connection part that obtains power from a conductive bar so that it can be replaced and installed, a power supply output terminal part provided at the other end of the power supply connection part, and a power supply output part provided between the power supply connection part and the power supply output terminal part. Similar to the handle operating section of the device, the switch is provided to be operable from the outside, and turns on and off the power circuit side and the load side circuit, the converter for performing the AC-DC conversion processing of the electric power obtained from the conductive bar, and the load circuit And a control circuit unit including a boost converter that boosts a voltage for performing a DC-DC conversion process in accordance with the operating voltage of the circuit. By replacing the branch switch, a DC circuit is connected to the load circuit according to the load circuit. wherein the supplying power Is obtained by providing a power supply means provided in the distribution board is characterized in that performed by collocated with Toki switch and said housing.

According to a second aspect of the present invention, the power stored in the secondary battery that stores the power that has been subjected to the AC-DC conversion processing by the converter that performs the AC-DC conversion processing and supplies the stored power to the boost converter. A power supply means is provided, characterized by being provided in a distribution board characterized by comprising a section.

According to the problem solving means, a load that uses AC power provided in a load circuit, a branch switch that supplies normal AC power according to a load that uses DC power, and external compatibility with the branch switch By replacing the power supply means for supplying DC power that can be turned on and off from the outside, it is possible to arrange power supply means that match the operating voltage of the load circuit. Can be arranged on the distribution board, and there is an effect that it is possible to provide a power supply means capable of supplying DC power to a load device located away from the branch switch.

It is a general-view figure of the state which closed the door of the electricity distribution panel which shows a 1st Example. It is a general-view figure of the state which opened the door of the electricity distribution panel which shows a 1st Example. It is a disassembled perspective view of the distribution board which shows a 1st Example. It is explanatory drawing of the power supply means provided in the internal unit. It is explanatory drawing which shows removal | desorption of a power supply means. It is a schematic internal structure figure of a power supply means. It is the figure which showed sectional drawing of the door. It is a general-view figure of the distribution board which shows a 2nd Example. It is a disassembled perspective view of the electricity distribution panel which shows a 2nd Example. It is the figure which showed sectional drawing of the cover. It is a figure which shows the electrical connection from the power supply means in the case of having a door. It is an enlarged view of electrical connection. It is an enlarged view which shows the electrical connection in the case of no door. It is an enlarged view of a pivot attachment part. It is a figure which shows a prior art example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, the first embodiment will be described. This embodiment is an embodiment in a distribution board with a door.
1 and 2 are schematic views showing the first embodiment, and show a state in which the door is closed and a state in which the door is opened, respectively. This distribution board is used as a residential distribution board arranged on a wall surface of a house, and covers a box 100 attached to the wall surface, a cover 101 attached to the box 100, and the front surface of the cover 101. As shown in FIG. 3, an internal unit 104 is arranged in the box 100, and an electric wire introduced into the box 100 is electrically connected to the internal unit 104.

The internal unit 104 includes a main switch 1041 for single-phase three-wire, a plurality of branch switches 1042, and power supply means 105. The branch switches 1042 are arranged in two rows in the direction of the power load side of the main switch 1041. The power supply side and the load side are separated and arranged. Moreover, in each side part, the branch switch is arranged in parallel. The main switch 1041, the branch switch 1042, and the power supply means 105 are electrically connected by the L1 phase and L2 phase voltage bar side conductive bars and the neutral pole side conductive bar. The conductive bar means a bus that supplies electric power to two or more branch switches in the housing panel, or an electrical conductor that connects between the bus and the branch switches.

The box 100 in which the internal unit 104 is disposed is attached to the cover 101 by fitting. Therefore, the fitting part 104b which protrudes from the box of the box is formed in the box 100, and the fitting part 104a which can be fitted to the fitting part 104b is formed in the cover 101.

The cover 101 is provided with a hole 1011 so that the operation handles of the main switch 1041 and the plurality of branch switches 1042 can be operated from the front of the cover.

Further, a door 102 is pivotally attached to the cover 101 via a pivot part 103 so as to be freely opened and closed. The pivot part 103 is shown in FIG. The pivot part 103 includes a pivot part a 103a provided on the cover 101 side and a pivot part b 103b provided on the door 103 side. The pivot part b 103b is elastic to hold the door 103 in an open state. The elastic holding part 103c which consists of a member is provided, and the pivot part a103a and the pivot part b103b are pivotally supported by a shaft 103d so that the door can be rotated with respect to the cover.

The door 102 is provided with illumination means 200. The light emitting part of the illumination means 200 is composed of EL (Electroluminescent) light. The illumination means 200 is disposed on the front surface of the door 102 along the surface shape of the door 102 so as to draw a smooth arc like the AA cross section of the door as shown in FIG. It is arranged. The EL light is excellent in flexibility, low heat generation, and power saving due to its characteristics, can be processed freely, and is irradiated by surface emission. Therefore, processing according to the size of the door 102 is possible, and arrangement according to the curvature of the door 102 is possible. Since it is arranged along the surface shape of the door 102, it is possible to irradiate brightly over a wide area from the vicinity of the foot to the vicinity of the ceiling at the place where the distribution board is installed.

As shown in FIG. 7A, the door 102 is provided with an EL light affixed to the front side of the door 102 and covered with a translucent film. As shown in b), the back side of the door is thinly processed to match the EL light so that light transmission can be seen, and the EL light is attached to the thin processed part from the back side so that the illumination means is connected to the door 102. Provided.

Thereby, according to arrangement | positioning of Fig.7 (a), it is possible to illuminate the surroundings of a distribution board directly in planar shape. Further, according to the arrangement of FIG. 7B, it is possible to illuminate the periphery of the distribution board in a planar shape with light that is softer than in FIG. For this reason, compared with the case where light is irradiated in a spot manner, a wide area is illuminated in a planar shape, so that it is possible to provide a distribution board that can reduce glare without being bright and backlit around the distribution board.

Next, power supply from the power supply means 105 to the illumination means 200 will be described. As shown in FIG. 4, the power supply means 105 is formed in substantially the same shape as the branch switch 1042 and is provided so as to be replaceable with the branch switch 1042. The power supply means 105 is used together with the branch switch 1042. FIG. 5 shows a view in which the power supply means 105 is removed. The power supply means 105 includes a power supply terminal portion 1051 that can be connected to a conductive bar that supplies power to the branch switch 1042 provided in the internal unit 104. At the other end, a power output terminal portion 1053 for supplying power to the illumination means 200 is provided. One branch circuit will be used, but it can be installed in place of a branch switch, so the function of supplying power and storing electricity to the lighting means can be easily installed in the distribution board without changing the internal unit. Can be provided.

FIG. 6 shows a schematic diagram of the internal structure of the power supply means 105. Inside the power supply means 105, a control circuit portion 1054 and a power storage portion 1052 are provided. The control circuit unit 1054 is provided with an AC / DC converter that performs AC-DC conversion processing, a boost converter that boosts voltage, a power failure detection means that detects a power failure in an electric circuit, a switch that turns on and off a light, and the like. The switch has an operation portion provided on the surface of the power supply means, and can be operated from the outside in the same manner as the handle operation portion of the branch switch 1042. The switch is configured differently from the handle operating portion of the branch switch 1042.

The power storage unit 1052 is used to store electric power, and is configured using a secondary battery. Although a lithium ion battery is used as the secondary battery, other lithium polymer batteries, rechargeable batteries such as NiCd batteries, and electric double tank capacitors may be used.

The electric power input from the conductive bar is input to the control circuit unit 1054 through the power supply connection unit 1051, is subjected to AC-DC conversion, and then is input to the power storage unit 1052 to be stored. When the power failure detection means detects a power failure, or when the switch is turned on, power is supplied from the power storage unit 1052 to the EL light through the boost converter, and the EL light is turned on.

The power failure detection means monitors the voltage between the power supply electrode side and the neutral electrode side of the power connection part 1051, and determines that a power failure has occurred when the voltage drops. In the power failure detection, in addition to this voltage detection, a current transformer for detecting the current flowing in the electric circuit may be provided in the electric circuit and detected by the output from the current transformer.
By providing a switch, it is possible to turn on the illumination means not only at the time of a power failure but also to turn on the illumination means manually, and to use it as temporary illumination if desired.

A lead wire is connected to the power output terminal portion 1053 (not shown), and the lead wire laid in the box 100 passes through a small hole provided in the vicinity of the pivoting portion 103 provided in the cover 101 and the door 102. Are connected to the illumination means 200 arranged in the above.

Since the distribution board provided with the illumination means 200 is configured as described above, when facing the distribution board by light being spotted from a security light in a dark state such as a power failure at night as in the conventional example. It is not bright and has no backlight effect. In addition, since the surrounding area is illuminated in a wide area, it is easy to understand where the distribution board is installed in the event of a power failure, etc. There is. Further, when the breaker is restored, the work is performed with the door 102 opened. Therefore, the illumination means 200 inevitably illuminates the ceiling, so that direct irradiation to the field of view is avoided, and the breaker is not dazzled. Can be restored. In addition, since the power supply means can be installed by replacing the existing branch switch, the existing internal unit can be diverted and used, the manufacturing cost can be reduced, and the power supply means can be easily installed on the distribution board. We can provide an electrical panel.

In addition, you may comprise an illumination means using the high-intensity light emitting diode which is solid element illumination other than EL light. In this case, a solid state element using an organic LED (OLED) that can be produced from a thin sheet of plastic, which is a conductive polymer material, or a quantum dot that forms an LED device by encapsulating a light emitting material of nanometer size dots in a capsule By forming the LED for illumination, a thin sheet-like illumination means can be obtained. Illumination means with increased illuminance can be configured by these OLEDs and LEDs using quantum dots. In this case, a DC / DC converter may be used so that the output voltage of the power storage unit matches the operating voltage of the illumination means, and the boost converter can be configured unnecessary. Alternatively, if the power storage unit is configured by matching the output voltage from the power storage unit with the illumination means, a DC / DC converter can be eliminated.

Next, the second embodiment will be described. The second embodiment is an embodiment in a distribution board without a door.
FIG. 8 shows an overview showing a second embodiment of the distribution board of the present invention. The distribution board according to the present embodiment is used as a residential distribution board arranged on a wall surface of a house, as in the first example, and is attached to the box 110 and a box 110 attached to the wall surface. As shown in FIG. 9, an internal unit 114 is disposed in the box 110, and an electric wire introduced into the box 110 is electrically connected to the internal unit 114. . Since the internal unit 114 is the same as the internal unit 104 described above, the description of the configuration is omitted.

The box 110 in which the internal unit 114 is disposed is attached to the cover 111 by fitting. Therefore, the box 110 is formed with a fitting portion 114b protruding from the box of the box, and the cover 111 is formed with a fitting portion 114a that can be fitted to the fitting portion 114b.

The cover 111 is provided with a hole 1111 so that the operation handles of the main switch 1141 and the plurality of branch breakers 1142 can be operated from the front of the cover.

The cover 111 is provided with illumination means 210. As in the first embodiment, the illuminating means 210 has a light emitting portion constituted by an EL light. The illumination means 210 is disposed on the peripheral edge of the cover 111, and is disposed along the cover cross-sectional shape like the BB cross-section of the cover shown in FIG.

As shown in FIG. 10A, the cover 111 is disposed such that an EL light is attached to the front surface of the cover 111 and the light is covered with a translucent film 211. ), A thin processing portion 212 is provided on the back side of the cover to the extent that light transmission can be seen, and an EL light is attached to the thin processing portion 212 from the back side to provide illumination means on the cover 111. ing. Thereby, according to arrangement | positioning of Fig.10 (a), it is possible to illuminate the surroundings of a distribution board directly in planar shape. Further, according to the arrangement of FIG. 10B, it is possible to illuminate the periphery of the distribution board in a planar shape with light that is softer than in FIG. For this reason, compared with the case where light is irradiated in a spot manner, a wide area is illuminated in a planar shape, so that it is possible to provide a distribution board that can reduce glare without being bright and backlit around the distribution board.

Next, power supply from the power supply means 115 to the illumination means 210 will be described. Since the configuration of the power supply means 115 is the same as that of the power supply means 105 shown in the first embodiment, description thereof is omitted. A lead wire is connected to the power output terminal portion of the power supply means 115 (not shown), and the lead wire laid in the box 110 is used when the illumination means 210 is arranged as shown in FIG. Is connected to the illuminating means 210 through a small hole opened in the vicinity of the power distribution means 115 of the cover 111 facing the front of the distribution board, and arranged as shown in FIG. If there is no small hole, the cover 111 is connected to the illumination means 210 in the vicinity of the power supply means 115 facing the front of the distribution board.

Since the distribution board provided with the illuminating means 210 is configured in this manner, as in the first embodiment, as in the conventional example, the distribution of electricity is caused by spot light being irradiated from the security light in a dark state. Dazzling when facing the board, there is no backlight effect. In addition, since the surrounding area is illuminated in a wide area, it is easy to understand where the distribution board is installed in the event of a power failure, etc. There is. Further, since the illumination means 210 illuminates the surroundings in a wide area in a planar shape and the entire surrounding is bright, there is an effect that the breaker can be restored without dazzling when the breaker is restored.

Next, a third embodiment will be described. The third embodiment is a modified embodiment of the distribution board with a door shown in the first embodiment. Compared with the first embodiment, since the power supply path from the power supply means 105 to the illumination means 200 is different, this portion will be described.
As shown in FIG. 11, the power supply means 105 is provided on the load side in the first embodiment among the two rows of the branch switches 1042 provided in the internal unit 104. However, in the third embodiment, it is provided in the side part on the power source side in order to shorten the power supply path to the illumination means 200.

FIG. 12 is an enlarged view of the vicinity of the fitting portion 104b. A bent conductive portion 1042b is connected to the power output terminal portion 1053 of the power supply means 105, and a conductive portion 1041b bent and disposed along the shape of the fitting portion 104b is connected to the conductive portion 1042b. It is connected. The fitting portion 104a of the cover 101 is provided with the conducting portion 1041b and a conducting portion 1041a that is electrically connected in contact with each other when fitted. The conducting portion 1041a is bent and disposed along the inner wall surface of the cover.

Further, the shaft 103d and the elastic holding portion 103c provided on the pivot attachment portion 103 shown in FIG. 14 are made of a conductor and are electrically connected to each other, and the conduction portion 1041a is connected to the shaft 103d by a lead wire. , Lead wires extending from the illumination means 200 are connected to the elastic holding portion 103c. In this way, the power supply from the power supply means 105 to the illumination means 200 is supplied from the conduction portion 1042b connected to the power supply output terminal portion 1053 of the power supply means 105 through the conduction portion 1041b of the fitting portion 104b on the box side to the cover side. This is performed so as to reach the illumination means 200 through the conducting portion 1041a, the lead wire, the shaft 103d, and the elastic holding portion 103c of the fitting portion 104a. As shown in FIG. 7, when the lighting unit 200 is arranged on the front side of the door, a small hole through which a lead wire that supplies power to the lighting unit 200 is provided in the vicinity of the pivot part 103.

As described above, since the distribution board is configured so as to supply the power to the lighting means 200 by providing the fitting portion and the pivoting portion, the lead wire as shown in the first embodiment is used. Compared with the case where the power supply means 105 and the illumination means 200 are connected, the box and the cover can be easily separated, so that the workability at the time of distribution board construction and maintenance can be improved. A distribution board can be provided.

Next, a fourth embodiment will be described. The fourth embodiment is a modified embodiment of the distribution board without a door shown in the second embodiment. Compared with the second embodiment, since the power supply path from the power supply means 115 to the illumination means 210 is different, this portion will be described. Further, as in the third embodiment, the power supply means 115 is a load-side joint portion in the second embodiment among the two-row joint portions of the plurality of branch switches 1142 provided in the internal unit 114. However, in the fourth embodiment, a description will be given of a configuration provided in the side portion on the power source side, following the third embodiment.

FIG. 13 is an enlarged view of the vicinity of the fitting portion 114b. A bent conductive portion 1142b is connected to the power output terminal portion 1153 of the power supply means 115, and the conductive portion 1141b bent and arranged along the shape of the fitting portion 114b is connected to the conductive portion 1142b. It is connected. The fitting portion 114a of the cover 111 is provided with the conducting portion 1141b and the conducting portion 1141a that is electrically connected in contact with the fitting portion 1141b. The conductive portion 1141 a is disposed by being bent along the back side of the cover, and is connected to a lead wire that supplies power to the illumination unit 210.
As shown in FIG. 10, when the illumination unit is arranged on the front side of the cover, a small hole through which the lead wire for supplying power to the illumination unit 200 passes is provided near the fitting portion 103.

In this way, power is supplied to the illumination means 210 from the power output terminal portion 1153 of the power supply means 115 through the conduction portion 1142b, the conduction portion 1141b, and the conduction portion 1041a. Thus, since the distribution board is configured to provide the conduction portion in the fitting portion and to supply power to the illumination means 210, the power supply means 115 and the power supply means 115 using the lead wires as shown in the second embodiment. Compared with the case where the lighting means 210 is connected, the box and the cover can be easily separated, so that the workability at the time of construction of the distribution board and at the time of maintenance can be further improved. Can be provided.

In addition, the two pivotal joints facing the front of the distribution board are composed of metal hinge A and metal hinge B, respectively, so that hinge A and hinge B are electrically connected. In the case of having a door, in each pole of the conductive portion 1041a, one pole is connected to the metal hinge A and the other pole is connected to the metal hinge B one by one, and a power supply lead wire extending from the illumination means is connected. It is good also as a structure which connects to the metal hinge A and the metal hinge B one by one, and electrically connects the conduction | electrical_connection part 1041a and an illumination means.

Since the present invention is configured by providing illumination means on the door or cover of the distribution board, it can be used as interior illumination by providing various illumination colors. In addition, for example, the power supply means is provided on the door side or cover side so that the door or cover alone can be used as the lighting means, and it is used as temporary lighting by removing the door or cover as a light source when installing the distribution board. It can be used for such purposes. For example, by using a cell power source packaged in a small size as a power source or a thin power source sealed with a laminate film or the like using a nano gate capacitor or the like, it has a lighter illumination means. Doors and covers that can be easily carried during work can be provided.

1 Distribution board 100 Box 101 Cover 102 Door 103 Pivoting part 104 Internal unit 104a Fitting part 104b Fitting part 1041 Main switch 1042 Branch switch 1041a Conducting part 1041b Conducting part 105 Power supply means 1051 Power supply connecting part 1052 Power storage part 1053 Power supply output connection portion 1054 Control circuit portion 200 Illuminating means 201 Translucent film 202 Thin wall processing portion 110 Box 111 Cover 114 Internal unit 114a Fitting portion 114b Fitting portion 1141 Main switch 1141a Conducting portion 1141b Conducting portion 1142 Branch opening / closing 115 Power supply means 1151 Power supply connection section 1152 Power storage section 1153 Power supply output connection section 1154 Control circuit section 210 Illumination means 211 Translucent film 212 Thin wall processing section

Claims (2)

The casing is formed in the same shape as the branch switch installed on the distribution board,
In the housing,
A power supply connection unit for obtaining power from a conductive bar so that the branch switch can be replaced and installed;
A power output terminal provided at the other end of the power connection,
Interposed between the power connection and the power output terminal,
A switch that can be operated from the outside in the same way as the handle operating part of the branch switch, and that turns on and off the power circuit on the power supply side and the load side,
A converter for performing an AC-DC conversion process of electric power obtained from the conductive bar;
A control circuit unit including a boost converter that performs DC-DC conversion processing according to the operating voltage of the load circuit ,
By replacing the branch switch,
A power supply means provided in a distribution board, wherein a DC power is supplied to the load circuit according to a load circuit by combining the branch switch and the housing .
While accumulating electric power that has undergone AC-DC conversion processing by the converter that performs the AC-DC conversion processing,
The power supply means according to claim 1, further comprising a power storage unit using a secondary battery for supplying the stored power to the boost converter.