JP2001185875A - Remote-control wiring structure for distributed power supply - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply process the wiring of remote control cables each having connectors at both ends trimming extra wires thereof so as to be unnoticeable when installing system inverters (interconnected inverters) which are the main apparatus of the system interconnect distributed power apparatus of a housing solar power generation system, etc., and its remote control display unit for the apparatus operating condition. SOLUTION: A plurality of cable clamps 6 are provided at a lower part of a back angle 2 to trim extra wires of the remote control cables 7 each with connectors at both ends, extra wires 8 of the remote control cables 7 are trimmed so as to be unnoticeable, utilizing spaces 4 formed when the system interconnection inverter 1 is mounted on a wall surface 3 through the back angle 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of installing a distributed power device operated in connection with a commercial power supply in a house or the like, and more particularly, to wiring of a wired remote controller attached to the distributed power device. It relates to the processing method and its structure.

[0002]

2. Description of the Related Art In recent years, various energy uses have been reviewed from the viewpoint of global environmental measures. In particular, solar cells utilizing solar energy are expected to be representative of a clean energy supply source. In the case of a residential photovoltaic power generation system or the like in which a distributed power supply and a commercial power supply by power generation or the like are interconnected and the required power cannot be provided by the distributed power supply alone, the power is supplied from the grid side. Distributed power devices have been developed.

[0003]

A residential photovoltaic power generation system as an example of the distributed power device is disclosed in Japanese Unexamined Patent Publication No.
It is proposed in Japanese Patent No. 170661.

However, in the above proposal, only the concept or the outline is disclosed, and there is no specific content on how the device is actually installed in a house or the like. That is, in the photovoltaic power generation system for a house, main devices installed on the indoor side of the house include a grid-connected inverter device, which issues an operation / stop command for the system, and generates electric power by power generation of a solar cell. In addition to reporting the amount of electricity, the integrated power, and the purchase / sales charge, the user constantly monitors the power generation efficiency of the system, detects that the power generation efficiency has deteriorated, and notifies the user that it is time for maintenance and inspection. There is a remote control display unit for grasping and commanding,
The system interconnection type inverter device and the remote control display unit are generally installed separately, and wired and connected by a remote control cable.

[0005] Therefore, the installation work of the remote control display unit involves the wiring work of a remote control cable. This remote control cable is used for transmitting and receiving various data between the system interconnection type inverter device and the remote control display unit. A cable with a special structure must be used.To perform this wiring work with the wiring length determined in each case according to the installation conditions of the site, the site of the cable end cut to the required length must be used. There is a problem in the workability that the wiring process must be performed one by one by a qualified person of this type of wiring work using a special tool. Therefore, a remote control cable having connectors attached to both ends of a cable having a sufficient length in advance is prepared, and at the time of installation of the device at the site, the connectors at both ends of the remote control cable are connected to the connector portion of the device. Although there is a simple method that can be installed and wired by anyone by simply plugging in each cable, there is a problem in the method of processing cables with extra length after wiring (remaining wires).

Therefore, as a method of eliminating the troublesome wiring processing of the remote control cable as described above, Japanese Patent Laid-Open No.
Japanese Patent Publication No. 215339 proposes a method that does not require wiring work for mounting the remote control display unit.

However, this method converts various data indicating the operation status of the residential photovoltaic power generation system into radio signals such as radio waves between the grid-connected inverter device and the remote control display unit. And a method for transmitting and receiving data. For this purpose, a radio signal modulation unit for modulating data and converting it to a radio signal, a transmitter for transmitting the modulated radio signal, an antenna, and A receiver for receiving and a radio signal handling device such as a radio signal demodulator for demodulating a received radio signal into data must be mounted on the system interconnection type inverter device and the remote control display unit. In addition, the cost of the device is considerably increased.

[0008] In another industrial technology field, there is a similar problem of extraneous processing of a remote control cable, which is disclosed in Japanese Utility Model Laid-Open Publication No.
No. 0 publication proposes a solution to this problem. However, a box is provided to wind up and store the surplus cable outdoors where there is sufficient space, or a free winding and storage device using a spring or the like is installed. This requires a special storage device, which increases the cost.

Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a grid-connected power system which is a main component of a grid-connected distributed power device which has recently become popular, such as a residential photovoltaic power generation system. Provided is a method and structure for easily performing wiring of a remote controller cable and installation of an extra line at the time of installation of an inverter device and a remote control display unit of the operation state of the device without providing a special cable storage device such as a box. It is in.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention firstly discloses a structure of a grid-connected inverter device (linked inverter) which is a main component of a grid-connected distributed power device, In addition to the wall mounting structure such as indoors, the wiring process of the remote control cable connected to the device,
Between the back and / or upper and lower parts of the device and the wall,
The processing is performed so as not to be noticeable from the front of the apparatus.

The remote control cable is a remote control cable with connectors at both ends, so that anyone can easily perform wiring processing.

[0012] The extra wire processing after the connection of the remote control cable wiring with the connectors at both ends is carried out so that it can be wound to an appropriate length between the back and / or upper and lower portions of the interconnection inverter and the wall surface. Cable clamper.

The plurality of cable clampers include:
The inverter is provided on the rear side of the main body of the interconnected inverter or on a rear angle through which the interconnected inverter is mounted on a wall surface of a house or the like.

[0014] Further, the plurality of cable clampers include:
A hole provided on the back side of the interconnection inverter main body, or a hole provided on the back angle, at least one of the holes is a horizontally long hole in the direction of the apron of the remote control cable. The cable clamper engaged with the hole is movable so as to adjust the winding length of the extra wire processing.

The oblong hole may be either one of the holes at both ends of the place where the hole is provided or a hole other than the both ends. In other words, the oblong hole may be the cable clamper. The hole may be provided at any position in the place as long as the hole is provided, and the number is not limited to one.

Preferably, the cable clamper includes an engaging portion for engaging the hole, an annular portion for binding the remote control cable, and the remote control cable bundled with a part of the annular portion. It is good to have an opening and closing part that closes afterwards, but it does not depend on its shape.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an interconnected inverter 1 according to an embodiment of the present invention, which is mounted on a wall in a house or the like, and a rear angle which is an auxiliary tool for mounting the interconnected inverter 1 on a wall 3. FIG. 2 is a perspective view showing a relationship between the interconnection inverter 1 and a rear angle 2;
FIG. 7 is a side view showing a relative positional relationship between the interconnection inverter 1 and the rear angle 2 when the inverter is attached to a wall surface 3 via a.

As is apparent from FIGS. 1 and 2, the vertical dimension of the interconnected inverter 1 and the vertical dimension of the rear angle 2 are smaller than the vertical dimension of the rear angle 2. If there is, a space 4 is created between the back surface of the interconnection inverter 1 and the wall surface 3, and as shown in FIG. 3, a wired remote controller for instructing and displaying the operation status of the interconnection inverter 1 and the like. By using this space 4, the connection wiring of the remote controller cable 7 with the connectors at both ends and the processing of the extra line can be processed so as to be inconspicuous from the front side of the interconnecting inverter 1 in accordance with the present invention.

In FIG. 2, the space 4 is formed between the lower rear surface of the interconnection inverter 1 and the wall surface 3, but the attachment of the interconnection inverter 1 to the rear angle 2 is shifted upward. , Upper back surface and wall surface 3 of the interconnection inverter 1
May be a structure in which a space 4 is generated between them.

FIG. 4 is a diagram in which a cable clamper 6 provided at a lower portion of the rear angle 2 performs an extra line processing of a remote control cable 7 with a double-sided connector for wiring connection between the interconnection inverter 1 and the wired remote controller 5. It is. That is, the extra line of the remote control cable 7 with the connectors at both ends is processed by the cable clamper 6 into a wrapped (loop) shape as shown in the figure, and as shown in FIG. The interconnecting inverter attached to the wall 3 via the rear angle 2, the extra line portion 8 of the remote control cable 7 with connectors at both ends, which has been wound (looped) by the cable clamper 6, fits in the space 4 described above. 1 is less noticeable from the front.

It should be noted that a cable clamper 6 may be provided above the rear angle 2. In this case, it is needless to say that the mounting of the interconnection inverter 1 to the rear angle 2 is shifted upward, so that a space 4 is formed between the upper rear surface of the interconnection inverter 1 and the wall surface 3.

FIG. 6 shows that the cable clamper 6 is not provided at the lower part (or upper part) of the rear angle 2,
This is an example in which it is provided at the lower part (or upper part) of the back of the interconnection inverter 1 main body. Even in such a case, the shunt line portion 8 of the remote control cable 7 with both ends connector, which has been wound (looped) by the cable clamper 6, is attached to the wall surface 3 via the rear angle 2 by the interconnection inverter 1. Then, it fits in the space 4 described above and becomes inconspicuous from the front of the interconnection inverter 1.

Next, FIGS. 7A and 7B are views showing an example of the shape of the cable clamper 6. The lower part (or upper part) of the back angle 2 or the main body of the interconnecting inverter 1 is shown. Engaging part 9 for attaching to the lower part (or upper part) on the back, annular part 10 for bundling remote control cable 7 with connectors at both ends, and opening / closing part 11 that closes after bundling remote control cable 7 with a part of this annular part And any shape may be used.

Since a plurality of the cable clampers 6 are used, the cable clampers 6 are provided at the lower portion (or upper portion) of the rear angle 2 or the lower portion (or upper portion) of the back of the interconnecting inverter 1 as described above. It is necessary to provide a plurality of holes 12 to be fitted in the engaging portions 9, and at least one of the holes 12 is a horizontally long hole as shown in FIG. 8 (a), (b) or (c). It is desirable that
Then, the cable clamper 6 fitted into the horizontally elongated hole
Is movable, and the size of the spillover portion 8 of the wrapped remote control cable 7 can be adjusted according to the spillover length of the remote control cable 7 with connectors at both ends.

FIG. 9 shows that the longitudinal dimension of the interconnection inverter 1 is substantially equal to the longitudinal dimension of the angle 2 on the rear surface, and the space 4 is less in the lower part (or upper part) of the rear angle 2. In such a case, in such a case, the cable clamper 6 is attached to the inside of the rear angle 2, and the extra line portion 8 of the remote control cable 7 with connectors at both ends is connected to the rear surface as shown in FIG. It is also possible to adopt a method of housing the inside of the angle 2.

[0027]

As described above, according to the present invention,
A grid-connected inverter device (linked inverter), which is a main component of a grid-connected distributed power device such as a residential photovoltaic power system that has recently become popular, and a remote control display unit for the operation status of the device. Wiring of the remote control cable with connectors at both ends and extra wiring at the time of installation can be easily performed without any complicated cable construction without any special cable storage device such as a box, and without significant cost increase. , And can be treated inconspicuously.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a relationship with a rear angle when an interconnection inverter is mounted on a wall surface according to an embodiment of the present invention.

FIG. 2 is a side view showing a relative positional relationship between the interconnection inverter and a rear angle according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a state where wiring processing is performed on a remote control cable having a double-sided connector for connection between an interconnection inverter and a wired remote controller according to an embodiment of the present invention.

FIG. 4 is a diagram showing an extra line processing status of a remote control cable with a connector for both ends of a wiring connection between a connection inverter and a wired remote controller according to an embodiment of the present invention.

FIG. 5 is a side view showing a state in which the interconnection inverter is attached to a wall surface via a rear angle after the amortization processing in FIG. 4 is performed.

FIG. 6 is a diagram showing an apotential processing state different from that in FIG. 4 of a remote control cable having a double-sided connector for wiring connection between an interconnection inverter and a wired remote controller according to an embodiment of the present invention.

FIG. 7 is a diagram illustrating an example of a shape of a cable clamper according to an embodiment of the present invention.

FIG. 8 is a diagram showing a state of a cable clamper mounting hole according to an embodiment of the present invention.

FIG. 9 is a diagram showing an apron condition processing state of a remote control cable with a double-sided connector for wiring connection between an interconnection inverter and a wired remote controller according to an embodiment of the present invention, which is further different from FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Interconnection inverter 2 Back angle 3 Wall 4 Space 5 Wired remote controller 6 Cable clamper 7 Remote controller cable with both ends connector 8 Auxiliary part 9 Engaging part 10 Annular part 11 Opening / closing part 12 Hole, horizontally long hole Same in each figure. Symbols indicate the same or corresponding parts.

Claims (7)

[Claims] 1. A distributed power device that converts DC power into AC and outputs the converted power, wherein the distributed power device (interconnection inverter) has a wall-mounted structure such as in a house.
It has a wired remote controller for instructing and displaying the operation status and the like, and performs wiring processing for connection to the remote controller between the rear surface of the distributed power device (interconnected inverter) and / or its upper and lower portions and the wall surface. A remote control wiring processing structure of the distributed power device, wherein the processing is performed so as to be inconspicuous from the front of the distributed power device (interconnected inverter). 2. The remote control wiring processing of a distributed power device according to claim 1, wherein the wiring connected to the remote control is a remote control cable with connectors at both ends. Construction. 3. The remote controller wiring processing structure of a distributed power device according to claim 1, wherein the remaining cable after the connection of the remote controller cable with connectors at both ends is treated as an extra line of the remote controller cable. A plurality of cable clampers for wrapping an appropriate length between the back surface and / or upper and lower portions of the distributed power device (interconnected inverter) and the wall surface of the distributed power device (interconnected inverter). Remote control wiring processing structure for power equipment. 4. The remote-control wiring processing structure for a distributed power device according to claim 3, wherein the plurality of cable clampers are provided on the rear side of the main body of the distributed power device (interconnected inverter) or on the distributed power device. A remote-control wiring processing structure for a distributed power device, wherein the device (interconnection inverter) is provided at a rear angle through which the device is mounted on a wall surface in a house or the like. 5. The distributed power device remote control wiring processing structure according to claim 3, wherein the plurality of cable clampers are provided on a back side of the distributed power device (interconnected inverter) main body. Hole, or a hole provided in the rear angle, at least one of the holes is a horizontally long hole in the direction of the apron of the remote control cable, and the hole engaged with the hole A remote control wiring processing structure for a distributed power device, wherein the cable clamper is movable. 6. The remote-control wiring processing structure of a distributed power device according to claim 5, wherein the oblong hole is one of holes at both ends of a place where the hole is provided, or a hole other than the both ends. A remote control wiring processing structure of the distributed power device, characterized by being a hole. 7. The remote control wiring processing method and structure of a distributed power device according to claim 3, wherein
The cable clamper has an engaging portion for engaging the hole, an annular portion for bundling the remote control cable,
A remote control wiring processing structure for a distributed power device, comprising: an opening / closing portion that closes after bundling the remote control cable at a part of the annular portion.