WO2024018799A1

WO2024018799A1 - Direct-current distribution system

Info

Publication number: WO2024018799A1
Application number: PCT/JP2023/022738
Authority: WO
Inventors: 和憲木寺; 達雄古賀; 千人浦
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2022-07-19
Filing date: 2023-06-20
Publication date: 2024-01-25

Abstract

A direct-current distribution system (100) comprises a panel (1), a power source (3), and a connector (2). The panel (1) has a pair of planar conductors (11, 12) arranged with a space therebetween in one direction, and a plurality of mounting portions (14) penetrating the pair of conductors (11, 12) in the one direction. The power source (3) supplies direct-current power to the pair of conductors (11, 12). The connector (2) is provided on a load (4), has a pair of electrodes (23, 24), and can be mounted to any mounting portion (14) among the plurality of mounting portions (14). The connector (2) supplies the direct-current power outputted by the power source (3) to the load (4) via the pair of electrodes (23, 24) and the pair of conductors (11, 12) while mounted to the mounting portion (14).

Description

DC power distribution system

The present invention relates to a DC power distribution system that supplies DC power.

Patent Document 1 discloses a lighting system. In this lighting system, a first power supply line and a second power supply line made of electrically conductive wire are provided on the ceiling at intervals and intersecting vertically. A lighting fixture is installed across the first power supply line and the second power supply line, and the power terminals of this lighting fixture are connected to each power supply line in correspondence with each other, so that the voltage applied between these power supply lines is Turn on the lighting equipment.

Japanese Patent Application Publication No. 2002-008430

The present invention provides a DC power distribution system that can easily improve the degree of freedom in installing loads.

A DC power distribution system according to one aspect of the present invention includes a panel, a power source, and a connector. The panel has a pair of planar conductors spaced apart from each other in one direction, and a plurality of attachment parts that penetrate the pair of conductors in the one direction. The power supply supplies DC power to the pair of conductors. The connector is provided on a load, has a pair of electrodes, and can be attached to any one of the plurality of attachment sections. The connector supplies the DC power output from the power source to the load via the pair of electrodes and the pair of conductors while being attached to the attachment portion.

The DC power distribution system of the present invention has the advantage of easily increasing the degree of freedom in mounting the load.

FIG. 1 is a schematic diagram showing the configuration of a DC power distribution system according to the first embodiment. FIG. 2 is an explanatory diagram of a method for attaching the connector to a panel according to the first embodiment. FIG. 3 is a schematic diagram showing the configuration of a DC power distribution system according to the second embodiment. FIG. 4 is a diagram showing a connection relationship between a power source and a plurality of surrounding panels in the DC power distribution system according to the second embodiment. FIG. 5 is a diagram showing the output characteristics of the power supply in the DC power distribution system according to the second embodiment. FIG. 6 is a schematic diagram showing the configuration of a connector according to a first modification. FIG. 7 is a schematic diagram showing the configuration of a connector according to a second modification. FIG. 8 is a sectional view showing the configuration of a DC power distribution system according to a third modification. FIG. 9 is a block diagram showing the configuration of a power supply in a DC power distribution system according to a fourth modification.

Hereinafter, embodiments will be specifically described with reference to the drawings. Note that the embodiments described below are all inclusive or specific examples. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components, steps, order of steps, etc. shown in the following embodiments are merely examples, and do not limit the present invention. Further, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims will be described as arbitrary constituent elements.

Note that each figure is a schematic diagram and is not necessarily strictly illustrated. Further, in each figure, substantially the same configurations are denoted by the same reference numerals, and overlapping explanations may be omitted or simplified.

(Embodiment 1)
Hereinafter, a DC power distribution system 100 according to Embodiment 1 will be described using FIG. 1. FIG. 1 is a schematic diagram showing the configuration of a DC power distribution system 100 according to the first embodiment. The DC power distribution system 100 includes a panel 1, a power source 3, and a connector 2, as shown in FIG.

Note that in the example shown in FIG. 1, the DC power distribution system 100 includes one panel 1, one power source 3, and one connector 2, but the present invention is not limited to this. For example, the DC power distribution system 100 may include multiple panels 1, multiple power supplies 3, and multiple connectors 2. The following description focuses on one panel 1, one power supply 3, and one connector 2.

The panel 1 is plate-shaped as a whole and is placed on the ceiling of the facility. For example, the panel 1 is placed as a part of the ceiling by replacing a part of the constituent materials that make up the ceiling of the facility. Furthermore, for example, the panel 1 is placed on the ceiling of the facility in a manner that it is suspended from the ceiling. Note that the panel 1 is not limited to the ceiling of the facility, and may be placed on the floor, wall, or as part of fixtures or the like. The panel 1 includes a pair of

conductors

11 and 12, an insulator 13, and a plurality of attachment parts 14.

The pair of

conductors

11 and 12 are made of a conductive material. The pair of

conductors

11 and 12 have a planar shape (specifically, a planar shape when viewed from one direction), and are arranged so as to be spaced apart from each other in one direction. In the first embodiment, "one direction" corresponds to the thickness direction of the panel 1, and is the vertical direction. Hereinafter, one of the pair of

conductors

11 and 12 will also be referred to as the first conductor 11, and the other conductor will also be referred to as the second conductor 12. The first conductor 11 is electrically connected to one electrode (here, the positive electrode) of a pair of electrodes on the output side of the power source 3 . The second conductor 12 is electrically connected to the other electrode (here, the negative electrode) of the pair of electrodes on the output side of the power source 3 .

The insulator 13 is made of an insulating material. The insulator 13 has a planar shape (specifically, a planar shape when viewed from one direction), and is arranged so as to be located between the pair of

conductors

11 and 12 in one direction. The insulator 13 electrically insulates the pair of

conductors

11 and 12. In the first embodiment, the first conductor 11 is provided on the first surface (top surface in FIG. 1) of the insulator 13 in the thickness direction (that is, one direction), and the second conductor 12 is provided on the second surface (bottom surface in FIG. 1). It is located. Note that the second conductor 12 may be disposed on the first surface of the insulator 13, and the first conductor 11 may be disposed on the second surface.

The mounting portion 14 is constituted by a hole that passes through the pair of

conductors

11 and 12 in one direction. In the first embodiment, the attachment portion 14 is configured with a rectangular hole when viewed from one direction. Note that the shape of the hole constituting the attachment portion 14 in plan view is not limited to a rectangular shape, and may be other shapes such as a circular shape. Further, in the first embodiment, since the insulator 13 is arranged between the pair of

conductors

11 and 12, the mounting portion 14 is formed by a hole penetrating the pair of

conductors

11 and 12 and the insulator 13 in one direction. It is configured.

In the first embodiment, the plurality of attachment parts 14 are arranged in a grid pattern when viewed from one direction. Therefore, the panel 1 is configured in a mesh shape when viewed from one direction. Note that the panel 1 only needs to include a plurality of attachment parts 14. Therefore, the arrangement of the plurality of attachment parts 14 is not limited to the above arrangement, and may be other arrangements.

The power supply 3 supplies DC power to the pair of

conductors

11 and 12. In the first embodiment, the power supply 3 includes a power converter including an AC/DC converter circuit. The power source 3 converts AC power output from the power system into DC power, and outputs the converted DC power to a pair of

conductors

11 and 12. In Embodiment 1, the power source 3 may be of any type as long as it outputs DC power, and may be a distributed power source such as a solar cell, a power source such as a storage battery, or a power converter (e.g., DC/DC It may also be a combination with a power converter (equipped with a converter circuit).

The power source 3 has a pair of electrodes on the output side, and if these pair of electrodes are electrically connected to a pair of

conductors

11 and 12, then how are they arranged with respect to the panel 1? Good too. For example, the power source 3 may be placed at any one of the four corners of the panel 1 when viewed from one direction.

Additionally, the power supply 3 includes a control section 31. The control unit 31 is implemented, for example, by a microcomputer, but may also be implemented by a processor or a dedicated circuit. The functions of the control section 31 are realized by hardware such as a microcomputer or processor constituting the control section 31 executing a computer program (software) stored in a memory. The control unit 31 controls the power converter so that the output power (or output voltage) of the power source 3 matches the command value, for example, according to a command value from an external controller or a command value stored in a memory in advance. do.

The connector 2 is provided on the load 4 and has a pair of electrodes 23 and 24 (see FIG. 2). Moreover, the connector 2 is configured to be attachable to any one of the plurality of attachment sections 14. The connector 2 supplies DC power output from the power source 3 to the load 4 via the pair of

electrodes

23 and 24 and the pair of

conductors

11 and 12 while being attached to the attachment portion 14 .

The connector 2 may be configured integrally with the load 4 and cannot be removed from the load 4, or may be detachable from the load 4. In the latter case, the connector 2 can be attached to any load 4 that has a structure to which the connector 2 can be attached. In the latter case, the connector 2 and the load 4 are electrically connected to each other using, for example, a USB (Universal Serial Bus) cable.

The connector 2 has a main body 21 and a fixing part 22, as shown in FIGS. 1 and 2. FIG. 2 is an explanatory diagram of a method for attaching the connector 2 to the panel 1 according to the first embodiment. FIG. 2A shows a state in which the main body 21 of the connector 2 is inserted into the mounting portion 14. FIG. 2B shows a state in which the main body 21 of the connector 2 is inserted into the mounting portion 14 and rotated clockwise by 90 degrees about one direction. FIG. 2C shows a state in which the connector 2 is attached to the attachment part 14.

The main body 21 is configured to be insertable into the mounting portion 14. In the first embodiment, the main body 21 has a rectangular parallelepiped shape, and its width and depth are both smaller than the width and depth of the hole forming the attachment portion 14. Note that the shape of the main body 21 is not limited to the rectangular parallelepiped shape, but may be any other shape as long as it has a size that allows insertion into the attachment portion 14.

The fixing part 22 is fixed by sandwiching the pair of

conductors

11 and 12 in one direction so that the pair of

electrodes

23 and 24 are in contact with the pair of

conductors

11 and 12, respectively, when the main body 21 is inserted into the mounting part 14. It is a part for doing.

Specifically, the fixing part 22 has a pair of

protrusions

221 and 222. Hereinafter, among the pair of

protrusions

221 and 222, the protrusion 221 located above in one direction is also referred to as a first protrusion 221, and the protrusion 222 located below in one direction is also referred to as a second protrusion 222. The first protrusion 221 and the second protrusion 222 both protrude from the side surface of the main body 21. In a plan view from one direction, the first protrusion 221 (or the second protrusion 222) and the main body 21 have dimensions that allow them to pass through the attachment part 14 when their longitudinal directions are along the longitudinal direction of the attachment part 14. (See FIG. 2(a)). On the other hand, in a plan view from one direction, the first protrusion 221 (or the second protrusion 222) and the main body 21 cannot pass through the attachment part 14 in a state where their longitudinal direction intersects with the longitudinal direction of the attachment part 14. (See FIG. 2(b)).

At least one of the first protrusion 221 and the second protrusion 222 is configured to be able to slide and move in one direction. In the first embodiment, the first protrusion 221 is configured to slide and move by sliding a lever (not shown) provided on the main body 21 in one direction. Further, the first protrusion 221 is biased by a spring (not shown) in a direction that narrows the distance between the first protrusion 221 and the second protrusion 222 .

The first protrusion 221 is provided with one electrode 23 (hereinafter also referred to as "first electrode 23") of the pair of

electrodes

23 and 24. Specifically, the first electrode 23 is attached to the surface of the first protrusion 221 that faces the first conductor 11 when the main body 21 is inserted into the attachment portion 14 (the lower surface in FIG. 2(a)). It is being Further, the second protrusion 222 is provided with the other electrode 24 (hereinafter also referred to as "second electrode 24") of the pair of

electrodes

23 and 24. Specifically, the second electrode 24 is attached to the surface of the second protrusion 222 that faces the second conductor 12 when the main body 21 is inserted into the attachment portion 14 (the upper surface in FIG. 2(a)). It is being

The pair of

electrodes

23 and 24 are electrically connected to the load 4 via wiring passing through the fixing part 22 and the inside of the main body 21, respectively. Therefore, by electrically connecting the pair of

electrodes

23 and 24 to the pair of

conductors

11 and 12 of the panel 1, the load 4 is transmitted from the power source 3 through the pair of

conductors

11 and 12 and the pair of

electrodes

23 and 24. Power is supplied to.

Here, a method for attaching the connector 2 to the attaching portion 14 will be explained using FIG. 2. First, as shown in FIG. 2A, the user holds the connector 2 in such a way that the longitudinal direction of the first protrusion 221 (or the second protrusion 222) and the main body 21 are along the longitudinal direction of the attachment part 14. Insert it into the mounting part 14. At this time, the user inserts the connector 2 into the attachment part 14 while maintaining the state in which the first protrusion part 221 is moved upward by operating a lever provided on the connector 2. Then, the user inserts the connector 2 into the mounting portion 14 until the pair of

conductors

11 and 12 are accommodated between the first protrusion 221 and the second protrusion 222.

Next, as shown in FIG. 2(b), the user rotates the connector 2 by a predetermined angle (here, 90 degrees) around one direction. In the example shown in FIG. 2(b), the connector 2 is rotated clockwise, but the connector 2 may be rotated counterclockwise. Furthermore, the predetermined angle is not limited to 90 degrees, and may be any angle that does not allow the first protrusion 221 (or second protrusion 222) and main body 21 of the rotated connector 2 to pass through the attachment portion 14.

After that, the user releases the lever attached to the connector 2. Then, as shown in FIG. 2C, the first protrusion 221, which had been moving upward against the elastic force of the spring, attempts to return to its original position due to the elastic force of the spring, and moves to the second protrusion. 222. As a result, the connector 2 is fixed to the attachment portion 14 by sandwiching the pair of

conductors

11 and 12 and the insulator 13 between the first protrusion 221 and the second protrusion 222 . In this way, by rotating around one direction, the fixed part 22 can be moved between the first position (see (a) in FIG. 2) inside the mounting part 14 in one direction, and the pair of

conductors

11, 12, it can be moved between a second position (see FIG. 2(c)) where it is fixed to the pair of

conductors

11 and 12.

The load 4 is electrically connected to the pair of

conductors

11 and 12 of the panel 1 via the connector 2, and is driven by receiving power supplied from the power source 3. In the first embodiment, the load 4 is a lighting fixture, but it may also be, for example, a speaker, a camera, a sensor, or a USB PD (Power Delivery). In other words, the load 4 may be any device other than a lighting fixture as long as it receives electric power and is driven. In the first embodiment, the load 4 electrically connected to the pair of

conductors

11 and 12 is one type of lighting equipment, but the load 4 electrically connected to the pair of

conductors

11 and 12 is one type of lighting equipment. There may be a plurality of types of 4. For example, a lighting fixture, a speaker, a camera, a sensor, and a USB PD may be connected to the pair of

conductors

11 and 12.

[advantage]
Hereinafter, the advantages of the DC power distribution system 100 according to the first embodiment will be explained with a comparison with a DC power distribution system of a comparative example. The DC power distribution system of the comparative example is a system that uses a straight duct rail as a power supply path. In the comparative DC power distribution system, DC power is supplied to the load by attaching the load to the duct rail.

However, in the DC power distribution system of the comparative example, since the duct rail, which is the power supply path, is linear, the mounting position of the load is restricted to a straight line, and there is a problem that the degree of freedom is poor. In addition, in the comparative DC power distribution system, even if the load is located close to the power supply, depending on the wiring condition of the duct rail that is the power supply path, the distance between the power supply and the load may be longer than the distance between the power supply and the load. A problem may arise in which DC power is supplied from the power supply to the load via the power supply. Furthermore, in the DC power distribution system of the comparative example, when multiple duct rails are connected, if there is a poor contact between the conductor of one of the duct rails and the load, or a break in the conductor occurs, all the duct rails will be used. The problem may arise that this is not possible.

On the other hand, in the DC power distribution system 100 according to the first embodiment, since the panel 1 that is the power feeding path is planar, if the mounting portion 14 is provided on the panel 1, the connector 2 and the load 4 can be attached freely. That is, the DC power distribution system 100 according to the first embodiment has an advantage in that the degree of freedom in the mounting position of the load 4 can be easily improved compared to the DC power distribution system of the comparative example.

Furthermore, in the DC power distribution system 100 according to the first embodiment, the pair of

planar conductors

11 and 12 constitute a power supply path. Therefore, there is an advantage that there is no situation where DC power is supplied from the power source 3 to the load 4 through a distance longer than the distance between the power source 3 and the load 4, as in the DC power distribution system of the comparative example. There is.

Further, in the DC power distribution system 100 according to the first embodiment, since the pair of

planar conductors

11 and 12 constitute the power supply path, the pair of

conductors

11 and 12 and the pair of

electrodes

23 and 24 of the connector 2 This has the advantage that poor contact between the two is less likely to occur. Furthermore, in the DC power distribution system 100 according to the first embodiment, even if one of the pair of

conductors

11 and 12 is broken or disconnected, the panel 1 can be used except for that part. There are advantages.

(Embodiment 2)
Hereinafter, a DC power distribution system 100A according to Embodiment 2 will be described using FIG. 3. FIG. 3 is a schematic diagram showing the configuration of a DC power distribution system 100A according to the second embodiment. As shown in FIG. 3, the DC power distribution system 100A according to the second embodiment includes a plurality of panels 1, and a power supply 3 is arranged at each of the four corners of the plurality of panels 1. This is different from the DC power distribution system 100 according to the first embodiment. That is, when focusing on one panel 1 among the plurality of panels 1, a plurality of power supplies 3 are electrically connected to the pair of

conductors

11 and 12 of the panel 1.

Specifically, in each of the plurality of power supplies 3, a pair of

electrodes

23, 24 of the power supply 3 is electrically connected to a pair of

conductors

11, 12 of each of the plurality of panels 1 around the power supply 3. ing. In other words, each of the plurality of power supplies 3 has a pair of

conductors

11 and 12 in the main panel 1A, which is the panel 1 that itself serves as the main power supply 3A, and a pair of

conductors

11 and 12 in the sub panel 1B, which is the panel 1 that does not serve as the main power supply 3A. The

conductors

11 and 12 are electrically connected to each other.

Here, when focusing on one panel 1, the main power supply 3A supplies power to the panel 1 among the plurality of power supplies 3 electrically connected to the pair of

conductors

11 and 12 of the panel 1. This is the power supply 3 that supplies the power. In the example shown in FIG. 3, the power source 3 surrounded by a circular frame is the main power source 3A for the panel 1 surrounded by a rectangular frame. In addition, in the example shown in FIG. 3, when viewed from the power source 3 surrounded by a round frame, among the four panels 1 around the power source 3, the panel 1 surrounded by a rectangular frame is the main panel 1A, and the remaining three The two panels 1 are sub-panels 1B.

An anode is electrically connected to the power source 3 between each of the plurality of power sources 3 and a pair of

conductors

11 and 12 of the sub panel 1B, and a cathode is connected to the pair of

conductors

11 and 12 of the sub panel 1B. An electrically connected diode D1 is provided. FIG. 4 is a diagram showing the connection relationship between the power source 3 and a plurality of surrounding panels 1 in the DC power distribution system 100A according to the second embodiment. As shown in FIG. 4, the diode D1 is not provided in the power supply path between the power source 3 and the main panel 1A (see FIG. 3). On the other hand, in the power supply path between the power supply 3 and the sub panel 1B (see FIG. 3), an anode is electrically connected to the power supply 3, and a cathode is electrically connected to the pair of

conductors

11 and 12 of the sub panel 1B. A connected diode D1 is provided.

Furthermore, in the DC power distribution system 100A according to the second embodiment, each of the plurality of power supplies 3 is controlled by the control unit 31 so as to have an output characteristic as shown in FIG. FIG. 5 is a diagram showing the output characteristics of the power supply 3 in the DC power distribution system 100A according to the second embodiment. In FIG. 5, the vertical axis represents the output voltage of the power source 3, and the horizontal axis represents the power supplied by the power source 3. Further, in FIG. 5, the solid line indicates the output characteristics of the main power source 3A when focusing on one panel 1, and the dashed-dotted line indicates the output characteristics of the sub power source 3B other than the main power source 3A. Note that the difference between the output voltage shown by the solid line and the output voltage shown by the dashed-dotted line is the voltage drop at the diode D1.

As shown in FIG. 5, the output voltage of the power source 3 is controlled to be a constant voltage until the power supplied by the power source 3 reaches a predetermined value (here, 50% when the rated output is 100%). It is controlled by the section 31. On the other hand, the output voltage of the power source 3 is controlled by the control unit 31 so that when the power supplied by the power source 3 exceeds a predetermined value, the output voltage gradually decreases as the power supplied increases. That is, in the DC power distribution system 100A according to the second embodiment, each of the plurality of power supplies 3 includes the control unit 31 that controls the output voltage to decrease when the supplied power becomes larger than a predetermined value. I can say it. The control unit 31 monitors the power supplied by the power source 3 based on, for example, a measurement result of the current flowing through the pair of

conductors

11 and 12 of the main panel 1A using a current sensor (not shown).

Hereinafter, the operation of the DC power distribution system 100A according to the second embodiment will be explained. In the following, explanation will be given focusing on one panel 1, assuming that one of the four power supplies 3 at the four corners of the panel 1 is the main power supply 3A, and the remaining three power supplies 3 are the sub power supplies 3B. Furthermore, in the following description, it is assumed that the power supplied by the other power sources 3 has not reached the predetermined value.

As shown in FIG. 5, the output voltage of the main power source 3A exceeds the output voltage of the other power sources 3 until the power supplied by the main power source 3A reaches the threshold P1. In this state, the main power supply 3A independently supplies power to the corresponding panel 1. On the other hand, as the number of loads 4 attached to the panel 1 increases, the power supplied by the main power source 3A increases, and when the power supplied by the main power source 3A reaches the threshold P1, the output voltage of the main power source 3A increases below the output voltage. Then, the potential of the sub power supply 3B becomes higher than the potential of the panel 1, so that power is supplied from the sub power supply 3B to the panel 1 via the diode D1.

As described above, in the DC power distribution system 100A according to the second embodiment, when the power supplied by the main power supply 3A that supplies power to the panel 1 becomes larger than the threshold value P1, each of the plurality of power supplies 3 It functions as an auxiliary power source that supplies power to 1. Therefore, in the DC power distribution system 100A according to the second embodiment, the plurality of power sources 3 supply power to the panel 1 while complementing each other, so that the load 4 electrically connected to the panel 1 can be stably supplied with power. It has the advantage of being able to supply power to

(Modified example)
Although the first and second embodiments have been described above, the present invention is not limited to the first and second embodiments. Modifications of Embodiments 1 and 2 will be listed below.

(First modification)
In the first and second embodiments described above, the panel 1 includes the insulator 13 sandwiched between the pair of

conductors

11 and 12, but the present invention is not limited to this. For example, the panel 1 may not include the insulator 13. In this case, the pair of

conductors

11 and 12 may be spaced apart from each other to the extent that electrical insulation can be ensured.

Furthermore, in this case, the connector may have a configuration in place of the insulator 13. FIG. 6 is a schematic diagram showing the configuration of a connector 2A according to a first modification. As shown in FIG. 6, the connector 2A according to the first modification further includes an insulating section 25. As shown in FIG. The insulating part 25 is formed of an insulating material and protrudes from the side surface of the main body 21 so as to be located between the pair of

protrusions

221 and 222 in one direction. As shown in FIG. 6, when the main body 21 is inserted into the mounting portion 14, in other words, when the pair of

electrodes

23 and 24 are in contact with the pair of

conductors

11 and 12, the insulating portion 25 It is inserted between the pair of

conductors

11 and 12 to electrically insulate the pair of

conductors

11 and 12.

This has the advantage that when the connector 2A is attached to the attachment part 14, the insulating part 25 can prevent a short circuit between the pair of

conductors

11 and 12. That is, even if the panel 1 does not include the insulator 13, there is an advantage that electrical insulation between the pair of

conductors

11 and 12 can be easily ensured by the connector 2A.

(Second modification)
In the first and second embodiments described above, the connector may further include a shaved portion. FIG. 7 is a sectional view showing the configuration of a connector 2B according to a second modification. As shown in FIG. 7, the connector 2B according to the second modification example has an insulating part 25 like the connector 2A according to the first modification example. In the connector 2B according to the second modification, the lower surface of the first protrusion 221 and the upper surface of the insulating section 25, which face each other, are inclined so that the distance between them becomes shorter as the distance between them approaches the main body 21. . Similarly, the lower surface of the insulating portion 25 and the upper surface of the second protruding portion 222, which face each other, are inclined so that the distance between them becomes shorter as they approach the main body 21. Furthermore, the pair of

protrusions

221 and 222 are both made of a material that is harder than the pair of

conductors

11 and 12. The lower surface of the first protrusion 221 and the upper surface of the second protrusion 222 constitute a shaved portion 26 . In other words, the fixing part 22 has the shaved part 26.

When the connector 2B according to the second modification is inserted into the mounting portion 14 and rotated by a predetermined angle, the lower surface of the first protrusion 221 moves while contacting the first conductor 11, and the second protrusion The upper surface of 222 moves while contacting the second conductor 12. As a result, the surface of the first conductor 11 is scraped by friction with the lower surface of the first protrusion 221. Furthermore, the surface of the second conductor 12 is scraped by friction with the upper surface of the second protrusion 222 .

As described above, in the connector 2B according to the second modification, the fixing part 22 has the scraping part 26 that scrapes the pair of

conductors

11 and 12 by friction as it moves from the first position to the second position. There is. Therefore, in the second modification, by scraping the surfaces of the pair of

conductors

11 and 12 with the scraping part 26, it becomes easier to prevent the surfaces of the pair of

conductors

11 and 12 from being oxidized, and the surfaces of the pair of

conductors

11 and 12 are scraped. This has the advantage that poor contact between the electrode and the pair of

electrodes

23 and 24 is less likely to occur.

(Third modification)
In the first and second embodiments described above, the connector 2 is configured to be attached to the panel 1 by rotating about one direction with the fixing part 22 inserted into the attaching part 14. Not limited. For example, the connector may be configured to be mounted to a panel without rotation.

FIG. 8 is a schematic diagram showing the configuration of a DC power distribution system 100B according to a third modification. FIG. 8 shows a plan view of the mounting portion 14A and the connector 2C viewed from one direction. As shown in FIG. 8, the mounting portion 14A is formed of an inverted L-shaped hole when viewed from one direction. Specifically, the mounting portion 14A includes a first hole 141 that is rectangular in plan view from one direction, and a second hole 142 that is rectangular and has a shorter length on one longitudinal side than the first hole 141. are connected and configured.

In the connector 2C, when viewed in plan from one direction, the first protrusion 221 (or the second protrusion 222) and the main body 21 have dimensions that allow them to pass through the first hole 141 of the attachment part 14A (Fig. 8 (see (a)). On the other hand, in the connector 2C, when viewed in plan from one direction, only the first protrusion 221 (or the second protrusion 222) has a size that allows it to pass through the second hole 142 of the attachment part 14A (Fig. 8 (see (b)).

Here, a method for attaching the connector 2C to the attaching portion 14A will be explained using FIG. 8. Note that the operation of the lever provided on the connector 2C is the same as that in Embodiment 1, so a description thereof will be omitted here. First, as shown in (a) of FIG. 8, the user makes sure that the longitudinal direction of the first protruding part 221 (or the second protruding part 222) and the main body 21 is along the longitudinal direction of the first mounting hole 141 of the mounting part 14A. Insert the connector 2C into the first mounting hole 141 of the mounting portion 14A in the correct direction. Then, the user inserts the connector 2C into the first attachment hole 141 of the attachment part 14A until the pair of

conductors

Next, as shown in FIG. 8(b), the user slides the connector 2C from the first attachment hole 141 toward the second attachment hole 142. Thereby, the main body 21 of the connector 2C is inserted into the second attachment hole 142. In this state, as in the first embodiment, the first protrusion 221 and the second protrusion 222 sandwich the pair of

conductors

11, 12 and the insulator 13, thereby fixing the connector 2C to the attachment part 14A. .

(Fourth modification)
In the second embodiment, the diode D1 is used to realize power supply to the panel 1 from the power source 3 other than the main power source 3A, but the present invention is not limited to this. For example, when each of the plurality of power supplies 3 obtains information indicating that the power supplied by the other power supply 3 exceeds a threshold value by communicating with another power supply 3 different from itself, the other power supply 3 may be configured to supply power to the panel 1 (main panel 1A) which supplies power as the main power supply 3A.

FIG. 9 is a block diagram showing the configuration of the power supply 3 in the DC power distribution system 100C according to the fourth modification. In the DC power distribution system 100C according to the fourth modification, instead of including the plurality of diodes D1, each of the plurality of power supplies 3 has a communication unit 32 that communicates with another power supply 3 different from itself. This differs from the DC power distribution system 100A according to the second embodiment in this point. Furthermore, in the DC power distribution system 100C according to the fourth modification, each of the plurality of power supplies 3 does not have the output characteristics (see FIG. 5) as in the second embodiment. The following description focuses on one power source 3 among the plurality of power sources 3. This power source 3 functions as a sub power source 3B when another power source 3 functions as a main power source 3A.

The communication unit 32 communicates with the communication unit 32 of the other power source 3 by, for example, power line communication (PLC). Note that the communication unit 32 may communicate with the communication unit 32 of the other power source 3 through wired communication other than PLC, or may communicate with the communication unit 32 of the other power source 3 through wireless communication. Good too.

The communication unit 32 acquires information regarding the power supplied by the other power source 3, in other words, information regarding the power supplied by the other power source 3 as the main power source 3A. The communication unit 32 can, for example, acquire the measurement result of the current flowing through the pair of

conductors

11 and 12 of the panel 1 (main panel 1A) to which the other power source 3 supplies power as the main power source 3A, and thereby connect the other power source 3 to the main power source 3A. 3. Obtain information regarding power supply.

Then, when the power supplied by the other power source 3 (main power source 3A) acquired by the communication unit 32 reaches a threshold value P1, the control unit 31 controls the output voltage of the power source 3 (auxiliary power source 3B) to The output voltage is controlled to be higher than the output voltage of 3A). As a result, power is supplied from the power supply 3 (auxiliary power supply 3B) to the panel 1 (main panel 1A).

Other embodiments may be obtained by making various modifications to each embodiment that those skilled in the art can think of, or by arbitrarily combining the components and functions of each embodiment without departing from the spirit of the present invention. The present invention also includes such forms.

(summary)
As described above, the DC

power distribution systems

100, 100A, 100B, and 100C according to the first aspect include the panel 1, the power source 3, and the

connectors

2, 2A, 2B, and 2C. The panel 1 includes a pair of

planar conductors

11 and 12 arranged at intervals in one direction, and a plurality of

attachment parts

14 and 14A that penetrate the pair of

conductors

11 and 12 in one direction. The power supply 3 supplies DC power to the pair of

conductors

11 and 12. The

connectors

2, 2A, 2B, 2C are provided on the load 4, have a pair of

electrodes

23, 24, and can be attached to any one of the plurality of

attachment sections

14, 14A. . The

connectors

2, 2A, 2B, 2C supply DC power output from the power source 3 to the load 4 via a pair of

electrodes

23, 24 and a pair of

conductors

11, 12 while attached to the mounting

parts

14, 14A. do.

According to this, there is an advantage that the degree of freedom in the mounting position of the load 4 can be easily improved.

Further, in the DC

power distribution system

100, 100A, 100B, 100C according to the second aspect, in the first aspect, the

connectors

2, 2A, 2B, 2C are connected to the main body 21 that can be inserted into the mounting

portions

14, 14A, and It has a section 22. The fixed part 22 has a pair of

electrodes

23 and 24 in contact with the pair of

conductors

11 and 12, respectively, by sandwiching the pair of

conductors

11 and 12 in one direction when the main body 21 is inserted into the mounting parts 14 and 14A. and fix it.

According to this, the fixing of the

connectors

2, 2A, 2B, 2C to the mounting

parts

14, 14A and the electrical connection between the pair of

conductors

11, 12 and the pair of

electrodes

23, 24 are performed at once. The advantage is that you can.

Furthermore, the DC

power distribution systems

100, 100A, 100B, and 100C according to the third aspect further include a planar insulator 13 in the first or second aspect. The insulator 13 is located between the pair of

conductors

11 and 12 in one direction, and electrically insulates between the pair of

conductors

11 and 12.

According to this, there is an advantage that the insulator 13 can prevent a short circuit between the pair of

conductors

11 and 12 when the

connectors

2, 2B, and 2C are attached to the

attachment parts

14 and 14A. be.

Furthermore, in the DC

power distribution systems

100, 100A, 100B, and 100C according to the fourth aspect, the connector 2A further includes an insulating section 25 in the second aspect. The insulating part 25 is inserted between the pair of

conductors

11 and 12 in a state where the pair of

electrodes

23 and 24 are in contact with the pair of

conductors

11 and 12, and electrically connects between the pair of

conductors

11 and 12. Insulate.

According to this, there is an advantage that the insulating portion 25 can prevent a short circuit between the pair of

conductors

11 and 12 when the connector 2A is attached to the

attachment portions

14 and 14A.

Further, in the DC

power distribution system

100, 100A, 100C according to the fifth aspect, in the second aspect, the fixed part 22 rotates about one direction as an axis, thereby moving between the first position and the second position. It is movable. The first position is a position movable in one direction inside the attachment part 14. The second position is a position where the pair of

conductors

11 and 12 are fixed to each other by sandwiching the pair of

conductors

11 and 12 between them.

According to this, simply by rotating the

connectors

2, 2A, 2B, the

connectors

2, 2A, 2B can be inserted into the mounting part 14, and the

connectors

2, 2A, 2B can be fixed to the mounting part 14. This has the advantage that the

connectors

2, 2A, 2B can be easily attached to the attachment portion 14.

In addition, in the DC

power distribution systems

100, 100A, 100B, and 100C according to the sixth aspect, in the fifth aspect, the fixed part 22 moves between the pair of

conductors

11 and 12 as it moves from the first position to the second position. It has a scraping part 26 that scrapes by friction.

According to this, by scraping the surfaces of the pair of

conductors

11 and 12 by the scraping part 26, it becomes easier to prevent the surfaces of the pair of

conductors

11 and 12 from being oxidized, and the pair of

conductors

11 and 12 and the pair of electrodes are easily prevented from being oxidized. This has the advantage that poor contact with 23 and 24 is less likely to occur.

Furthermore, in the DC

power distribution systems

100A and 100C according to the seventh aspect, in any one of the first to sixth aspects, a plurality of power sources 3 are electrically connected to the pair of

conductors

11 and 12 of the panel 1. ing. Each of the plurality of power supplies 3 supplies power to the panel 1 when the power supplied by the main power supply 3A that is supplying power to the panel 1 becomes larger than a threshold value P1.

According to this, since the plurality of power supplies 3 supply power to the panel 1 while complementing each other, power can be stably supplied to the load 4 electrically connected to the panel 1. There are advantages.

Further, in the DC power distribution system 100A according to the eighth aspect, in the seventh aspect, each of the plurality of power supplies 3 has a control unit 31 that controls the output voltage to decrease when the supplied power becomes larger than a predetermined value. have. Each of the plurality of power supplies 3 includes a pair of

conductors

11 and 12 of the main panel 1A, which is the panel 1 that itself serves as the main power supply 3A, and a pair of

conductors

11 and 12 of the sub panel 1B, which is the panel 1 that does not serve as the main power supply 3A. 11 and 12 are electrically connected. Between each of the plurality of power supplies 3 and the pair of

conductors

11 and 12 of the sub panel 1B, an anode is electrically connected to the power supply 3, and a cathode is electrically connected to the pair of

conductors

11 and 12 of the sub panel 1B. A diode D1 connected to is provided.

According to this, there is an advantage that a configuration in which a plurality of power supplies 3 supply power to the panel 1 while supplementing each other can be realized by a simple configuration in which the diode D1 is provided in the power supply path.

Furthermore, in the DC power distribution system 100C according to the ninth aspect, in the seventh aspect, each of the plurality of power sources 3 has a communication unit 32 that communicates with another power source 3 different from itself. The communication unit 32 acquires information regarding the power supplied by the main power source 3A.

According to this, each of the plurality of power supplies 3 grasps the power supplied by the main power supply 3A through the communication unit 32, thereby realizing a configuration in which the plurality of power supplies 3 supply power to the panel 1 while complementing each other. It has the advantage of being able to

100, 100A, 100B, 100C DC power distribution system 1 Panel 11 First conductor (conductor)
12 Second conductor (conductor)
13

Insulator

14, 14A Mounting part 1A Main

panel 1B Sub-panel

2, 2A, 2B, 2C Connector 21 Main body 22 Fixing part 221 First protrusion 222 Second protrusion 23 First electrode (electrode)
24 Second electrode (electrode)
25 Insulating part 26 Cutting part 3 Power supply 31 Control part 32 Communication part 3A Main power supply 4 Load D1 Diode P1 Threshold

Claims

A panel having a pair of planar conductors spaced apart in one direction, and a plurality of attachment parts penetrating the pair of conductors in the one direction;
a power source that supplies DC power to the pair of conductors;
a connector that is provided on the load, has a pair of electrodes, and can be attached to any one of the plurality of attachment sections;
The connector supplies the DC power output from the power source to the load via the pair of electrodes and the pair of conductors while being attached to the mounting portion.
DC power distribution system.
The connector is
a main body that can be inserted into the mounting part;
a fixing part for fixing the pair of electrodes in contact with the pair of conductors by sandwiching the pair of conductors in the one direction when the main body is inserted into the attachment part;
The DC power distribution system according to claim 1.
further comprising a planar insulator located between the pair of conductors in the one direction and electrically insulating between the pair of conductors;
The DC power distribution system according to claim 1 or 2.
The connector further includes an insulating part that is inserted between the pair of conductors and electrically insulates the pair of conductors when the pair of electrodes is in contact with the pair of conductors.
The DC power distribution system according to claim 2.
The fixing part is fixed to the pair of conductors by rotating around the one direction to a first position movable in the one direction inside the mounting part and sandwiching the pair of conductors. movable to and from a second position;
The DC power distribution system according to claim 2.
The fixing part has a scraping part that scrapes the pair of conductors by friction as the fixing part moves from the first position to the second position.
The DC power distribution system according to claim 5.
A plurality of the power sources are electrically connected to the pair of conductors of the panel,
Each of the plurality of power supplies supplies power to the panel when the power supplied by the main power supply supplying power to the panel becomes larger than a threshold value.
The DC power distribution system according to claim 1 or 2.
Each of the plurality of power supplies has a control unit that controls the output voltage to decrease when the supplied power becomes larger than a predetermined value,
Each of the plurality of power sources includes the pair of conductors of the main panel, which is the panel that serves as the main power source, and the pair of conductors of the sub panel, which is the panel that does not serve as the main power source. electrically connected,
Between each of the plurality of power supplies and the pair of conductors of the sub-panel, an anode is electrically connected to the power supply, and a cathode is electrically connected to the pair of conductors of the sub-panel. A diode is provided,
The DC power distribution system according to claim 7.
Each of the plurality of power supplies has a communication unit that communicates between itself and another power supply different from the power supply,
The communication unit acquires information regarding the power supplied by the main power source,
The DC power distribution system according to claim 7.