JPH04161013A - Wiring mechanism in heavy and weak current composite board - Google Patents

Abstract

PURPOSE:To obtain a wiring mechanism in a composite board in which an electric shield between wirings in a heavy current board and wirings in a weak current board is sufficienctly performed by disposing a heavy current duct and a weak current duct adjacently, and forming at least one of the ducts of an electric shieleding material having electromagnetic shielding and electrostatic shielding. CONSTITUTION:A weak current duct 14 is formed of conductive synthetic resin as an electric shielding material, and a heavy current duct 31 is made up of a duct wall 29 of synthetic resin, a duct body 30, and a cover 27. Cutouts 15, 19 are disposed so that the distance (b) between wirings 3 and 2 externally led out of duct bodies 14a, 18a becomes sufficiently long, and sufficient electric shield between the wirings 3 and 2 is performed by the duct 14. Accordingly, even if the duct 31 is adjacent to the duct 14 in a wiring mechainsm 28, induction noise is not generated at the wirings 3. Therefore, a high density mounting of devices in a board can be performed in a composite board 11.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a heavy-power/light-power composite panel (hereinafter referred to as this panel) in which wires for a strong power circuit and wires for a weak power circuit of a switchboard ring are wired in the same panel. The internal wiring mechanism of a panel (sometimes simply referred to as a composite panel), in particular, enables high-density mounting of devices within the panel, and facilitates the wiring (changes and wiring maintenance work). Regarding the mechanism that allows

[Conventional technology]

Figure 3 is a perspective view extracting the t! , 2 is a high-voltage inboard wiring consisting of at least one high-voltage circuit wire 2a;
Reference numeral 3 denotes the wiring in the panel for light electric circuits consisting of at least one electric wire 3a for the light electric circuit, and 4, the cross section of which accommodates the wiring 2 is a synthetic resin duct body 4m in the shape of a ), and the opening of this body 4a can be freely attached and detached ( 1! A cylindrical high-voltage duct consisting of a lid 4b made of a smooth synthetic resin, and h5 is a duct body 5a having the same shape and material composition as the duct body 4a that houses the wiring 3.
The opening of the main body 51 can be attached and detached 1! The duct is a cylindrical weak current duct consisting of a lid 5b having the same shape and material composition as the lid 4b. In this case, by increasing the distance a between the ducts 4 and 5,
There are cases of A2 and 3. Reference numeral 11 denotes a composite panel in which the duct bodies 4 and 5a are attached by means not shown in the panel 11a.

FIG. 5 shows the above-mentioned composite board 11. This is a perspective view showing the main parts of a conventional in-board wiring mechanism 6, which is different from the in-board wiring mechanism 1. In this figure, the same parts as in FIG. It's obvious. Then, in Fig. 5, 7 is the inside panel for light electricity! ! 3 and a wiring storage box 8 in which the wiring 3 is housed.

9 is between the panels for heavy-duty electricity! ! A duct body 9a made of synthetic resin and having a U-shaped cross section accommodates the wires 2 and the light electric circuit side wiring 7 all at once.
A wiring duct consisting of a lid 9b made of synthetic resin that can be attached and detached to (close) the opening of the main body 9m, in this case,
The chave 8 is a tape 8I having a two-layer structure consisting of a shielding layer 8a having an electrical shielding function formed of metal wire braid, metal foil, etc. and an organic insulating layer 8b made of synthetic resin, etc., in the width direction of this tape 81. By wrapping the shielding layer 8a on the inside (so as to surround the wiring li!i!3) and joining the two ends with zipper mechanisms 8C provided in advance at both ends of the insulating layer 8b in the width direction. The wiring 3 is configured so that the chip is inserted into the inner ff1s#c.

Then, in this case, as shown in Figure 1 (, the shielding layer 8
A is grounded via a grounding wire 10.

Figure 1M6 shows the combination panel 11 [in-board wiring mechanism 1 and 6]
This is a perspective view showing the main parts of the conventional in-panel wiring mechanism 12, which is different from any of the above, and the difference from the one-shot figure 3 is that the electrolytic 3a for the light electric circuit is gold! Electric wires 13al' with shield coatings such as wire braid coatings are used to form light electrical panel wiring 13 corresponding to light electrical panel arrangement!J3.

[Problem to be solved by the invention]

゛In Figures 3 to 6 yc, wiring mechanisms 1.6 and 1
2 are configured as described above, so in any wiring mechanism, the heavy power in-panel wiring 2 and the light power in-board wiring 3 or 13 are electrically shielded, so that the wiring 3 and 13 are electrically shielded. It is clear that induced noise is generated and the structure is rough, but in the case of the wiring mechanism I, the ducts 4 and 5 are distributed in the panel 11a (distributed), so they Since the devices cannot be closely connected inside the panel 11, 1K*, there is a problem that in this case it is not possible to assemble the devices inside the panel with high Ii!F degrees. In this case, since the tube 8 is formed as described above, each time the wiring 3 is inserted into the duct 9rc, it is necessary to wrap the wiring 3 with tape 81 and then close the zipper mechanism 8C. , Also, when changing the type, wiring, or maintenance/inspection of wiring 1Iis3Y, it is necessary to open tube 8 each time and perform the work in the reverse order of the above. There is a problem that it is difficult to perform such tasks.

In addition, in the case of the wiring mechanism 12, since the arrangement $113 is composed of the shielded wire 13a, the ducts 4 and 5 can be installed closely together. However, in the wiring mechanism 12, the wire 13a is covered with a shield, so it is thicker than the wire 3m, so the duct 5 has to be made thicker than in the case of FIG. Therefore, there is a problem in that the wiring mechanism 12 also poses a problem in high-density mounting of devices within the panel.

The purpose of the present invention is to eliminate the need to use the wiring storage tube 8 or the shielded wire 13m (even if the heavy-power in-panel wiring 2 and the light-power in-board wiring 3 are placed close to each other, wiring #J2 and #3 Ensuring sufficient air shielding between the cables is ensured so that high-density mounting of equipment inside the panel is not hindered, and fIF and work such as wiring and maintenance related to wiring 2 and 3rC can be easily performed. The purpose of the present invention is to obtain an internal wiring mechanism for a composite panel that can be used.

[Means to solve the problem]

In order to achieve the above object, 1) according to the present invention, l) a cylindrical heavy current duct for accommodating heavy current in-panel wiring; and at least one of the two ducts is attached to an inner surface 1D of the back of the panel, the two ducts are arranged adjacent to each other, and at least one of the two ducts has an electromagnetic shielding property and an electrostatic shielding property. The in-panel wiring mechanism of the strong/light electricity composite board is formed by forming the electrical shielding material with the material, and also.

2) Regarding the internal wiring mechanism described in item 1) above.

At least a part of the walls of the strong electric duct and the light electric duct adjacent to each other that are not made of electrical shielding material is omitted to constitute the in-panel wiring mechanism of the heavy electric and light electric composite panel, The in-panel wiring mechanism described in item 1) above.

Both the high-power duct and the low-power duct have a duct body with a stone cutout on the axis of the duct and a band-shaped opening extending over the entire length of the duct.

In addition, the two openings are arranged in a depth direction e of the strong and weak electric power combined panel so that they both face both parts of the strong and weak electric power combined panel.
Each of the two ducts having a cylindrical shape is formed by each of the two duct bodies arranged side by side and a lid made of an electrically shielding material that commonly covers both the openings. In both the ducts, the in-panel wiring mechanism of the heavy-power/light-power composite board is constructed by omitting at least a portion of the portions of the duct bodies adjacent to each other that are not made of electrical shielding material.

[For 1] When the in-panel wiring mechanism of a composite panel is configured as described above, even though the 1 high-power duct and low-power duct are aS, the high-power in-panel wiring and the low-power duct are A duct made of electrical shielding material is used to provide electrical shielding between the in-panel wiring and the in-panel wiring for heavy electric currents and the in-panel wiring for light electric currents. There is no need to use the wiring storage tube 8, and there is no need to distribute the high-power ducts and low-power ducts, so there is no problem with high-density mounting of in-panel equipment, and the wiring inside the panel for high-power and for low-power It is possible to obtain an in-panel wiring mechanism for a composite panel in which work such as wiring and maintenance related to in-panel wiring can be easily performed.

〔Example〕

FIG. 1 is a perspective view illustrating the configuration of an embodiment of the present invention, and FIG. 2 is a sectional view of the main parts shown in FIG. 1. In FIGS. 1 and 2, the same components as those shown in FIGS. 3 to 6 are given the same reference numerals as in FIGS. 3 to 6.

Now, in FIGS. 1 and 2, 141 constitutes a light current duct 14 corresponding to the light current duct 5 in FIG. 15 is the duct body 141F, which is made of a conductive synthetic resin having an electrically shielding property (hereinafter, this material may be referred to as an electrical shielding material).
'l The housed wiring 3 is placed in the main body 14 as shown in the figure.
1 is a notch provided in the main body 141 to draw it out, 16 is a notch previously provided in the main body 14aic so that the notch 15 can be easily formed, and 17 is a wire 3. The terminal e 18m connected to the end of the electric wire 3 constitutes an open-channel duct 18, which will be described later, corresponding to the heavy-duty duct 4 shown in FIG. The duct body 19 is made of synthetic resin and has an angular spiral cross-section as shown in the figure, and the wiring 2 housed in the duct body 18m is installed outside the body 181 (in order to be pulled out) as shown in the figure. In order to easily form a notch 1519 (in the main body 181: a notch made in advance, 21 indicates the end of the electric wire 2 that constitutes the wiring 2 (with the connected terminal). be.

Then, in Figures #I1 and 2, the bottom wall 14 of the duct body 14a is fixed by the screw 22 as shown in the innermost wall 18111C of the duct body 181, and the duct body 181 is fixed to the inner surface 11bK of the back of the composite panel 11 with screws 23, as shown in the figure. 22m is a screw hole for the screw 22 provided in the wall body 18111, and 24 is a screw hole for the duct body 14 formed as described above (therefore, both opposing walls 14m of the body 141
At the opening of the duct body 14m created between 1° 14 and 2, the aforementioned open channel duct 18 is a part of the wall 14a3 that constitutes the duct body 18a and the duct body construction 41, and the wall! 4a2. The illustrated 26 is the duct 1
8 is configured as described above (therefore the duct body 1
End part of wall 1412 and duct body 181 in 4aK
In this case, the opening of the duct 1S is formed between the ends A and B of the outermost wall 18112 and the end B of the outermost wall 1411.
The duct bodies 1431 and 181 are configured so that they are flush with each other.

Reference numeral 27 indicates an end portion of the wall 18a2 of the duct body 18m and the wall 14 of the duct body 14a so that they are in contact with each other.
A basket made of conductive synthetic resin as an electrical shielding material that is removably attached to a1 so as to commonly cover both openings 26 and 24,
In this case as well, the same as in FIG. The duct body 141 and the lid 27 are formed into a cylindrical shape.The wiring mechanism 28 is made of the same synthetic resin as the hypothetical duct body 18a, with each part configured as described above. The duct main body 30 consisting of the wall 29 and the duct main body 181 and the lid 27 form the third
In the figure, both duct bodies 30 are in contact with each other.
It can be said that this is a form in which the duct wall body 29, which is a part of each part of 141 that is not made of electrical shielding material, is omitted.

Then, in the wiring mechanism 28, the strong electric duct 3
1 and the light current duct 14 are configured as described above, in this case, both of these ducts 31 and 14 are
A duct body 3 provided with a band-shaped opening 25° 24 along the axis of each of these ducts and spanning the entire length of the duct.
0.14 m, and the duct main body 148.30 is arranged along the depth direction of the mounting board 11 with both openings 26.24 facing the front of the composite board 11 (
It can be said that it has become.

In FIG. 1 and WJ2, the wiring mechanism 28 is configured as described above, and in the case of brackets, the distance between the wires 3 and 2 drawn out of the duct bodies 14a and 18a is
Since the cutout portions 15 and 19 are arranged such that b is a sufficiently long distance without causing induced noise in the wiring 3, sufficient electrical shielding between the wirings a13 and 2 is provided to ensure conductivity. C is applied to the weak current duct 14 of the synthetic resin layer,
Therefore, in the wiring mechanism 28: the strong current duct 31 and the weak current duct 14 are adjacent to each other (although the wiring 2
．． Any of the buttons 3 is the same as the above-mentioned shielded cover 1jl1.
Even though 3a and wiring storage tube 8 are not used, wiring #! It is clear that no induced noise occurs in 3. Therefore, in the case of the wiring mechanism 28, there is no need to distribute the high-power duct 31 and the low-power duct 14 (and there is no need to use the above-mentioned electric wire 13a or tube 8 for any of the wiring 2.3, 11[], it is possible to perform high-density mounting of devices inside the panel, and work such as wiring and maintenance related to the wirings 2 and 3 can be easily performed.

In the above-mentioned Example 28 (in the duct body 14m and 181
were fixed as described above, but in the present invention (in the present invention,
By fixing the duct body 141 to the elliptical side wall 18all' (the continuous wall of the duct body 181) by means not shown in the drawings, the wall 18al is omitted, and as a result, the distribution mechanisms 28 are arranged adjacent to each other. It is also possible to omit all of the parts of the duct bodies 30 and 141 that are not made of electrical shielding material (
ゝO In addition, in the above-mentioned embodiment 28, the strong current duct 31 and the weak current duct 14 were arranged along the depth direction of the board 11, but in the present invention.

Both ducts 31 and 14 are arranged adjacent to each other in the width direction of the panel 11, and at least one of both ducts is connected to the inner surface 1 of the back of the panel.
1b (may be fixed, in which case both ducts 31.14
Of each wall adjacent to each other vc! At least a portion of the wall that is not made of air-shielding material is omitted, and the temperature is good. According to the present invention, in the case shown in FIG.
It is obvious that the wires 3 may be accommodated in the duct body 18a and 141 of the wires 2 and 3 shown in FIG. Aspects (are not limited).

〔Effect of the invention〕

As described above, in the present invention, the following features are provided. In a combination panel with both ducts (one of which is attached to the inner surface of the back of the panel), two ducts are arranged adjacent to each other, and at least one of the two ducts has electromagnetic shielding properties and electrostatic shielding properties. It is made of electrical shielding material to configure the internal wiring mechanism of the strong and weak electrical connection board.

2) Item 1) above (with the in-panel wiring machine s7c described).

At least a part of the walls that are not made of electrical shielding material among the mutually adjacent wall bodies of the strong electric duct and the light electric duct are omitted to configure the in-panel wiring mechanism of the heavy electric and light electric combined panel.

3) In the in-panel wiring mechanism described in item l) above.

For both high and low current ducts, the axis of the duct [1
9. The duct shall have a duct body provided with a band-shaped opening extending over the entire length of the duct.

In addition, the two openings are arranged in the depth direction (
After forming each of the cylindrical ducts with the two types of duct bodies arranged along the duct and the both openings (common cover), The in-panel wiring mechanism of the heavy-power/light-power composite panel is constructed by omitting at least a portion of the portions of the two duct bodies adjacent to each other in the two ducts that are not made of electrical shielding material.

For this reason, when the in-panel wiring mechanism of a composite panel is configured as described above, in any in-panel wiring mechanism, even though the high-power duct and the low-power duct are adjacent, the high-power in-panel wiring and the low-power Electrical shielding between the wiring inside the panel is done using a duct made of electrical shielding material.

As a result, either the wiring inside the panel for heavy electricity or the wiring inside the panel for light electricity (
Also, the above-mentioned shield-coated electric appliance Il! Since there is no need to use 13a or 13a for wiring storage, and there is no need to separately arrange high-power ducts and low-power ducts, there is no problem in high-density and variable mounting of equipment in the panel. In-panel wiring for heavy electric currents and in-panel wiring for light electric currents! ii'f: It is possible to obtain an in-panel wiring mechanism for a composite panel that makes it easy to carry out tasks such as wiring and maintenance. 2. The present invention has the effect of reducing the size of the composite board and improving the efficiency of manufacturing and maintenance of the mounting board.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the configuration of an embodiment of the present invention. FIG. 2 is a cross-sectional view of a main part of the embodiment shown in FIG. Fig. 4 is an enlarged perspective view of the main parts in Fig. 3. 1, 6.12.28... In-panel wiring mechanism, 2...
...In-panel wiring for Soden, 3...In-panel wiring for low power, 4.31...High power duct, 4a*5m1
9a* 14 thorn, 18a# 30...Tatto body, 4b, 5b, 9b, 27...Lid, 5. i4...Weak electric duct l=, 11...
...High and light power combination panel, 1it)...Inner surface of the back of the panel, 24.26...Opening.

Claims (1)

[Scope of Claims] 1) A cylindrical high-power duct for accommodating heavy-power in-panel wiring and a cylindrical-shaped low-power duct for accommodating light-power in-panel wiring, and at least one of the two ducts is located at the back of the panel. In the strong and weak electric combination board attached to the inner surface of the duct, the two ducts are arranged adjacent to each other, and at least one of the two ducts is formed of an electrical shielding material having electromagnetic shielding properties and electrostatic shielding properties. In-panel wiring mechanism of a strong and light power combination board. 2) In the in-panel wiring mechanism according to claim 1, at least a part of the walls that are not made of electrical shielding material among the mutually adjacent walls of the high-power duct and the low-power duct are omitted. The special feature is the internal wiring mechanism of the strong and light power combination board. 3) In the in-panel wiring mechanism according to claim 1, both the high-power duct and the low-power duct have a duct body provided with a band-shaped opening extending along the axis of the duct and extending over the entire length of the duct. and each of the two duct bodies disposed along the depth direction of the strong and weak electric power combined board such that the two openings both face the front of the strong and weak electric combined board; After each of the cylindrical ducts is formed with a lid made of an electrically shielding material that commonly covers both openings, each portion of the duct bodies adjacent to each other in the ducts is An in-panel wiring mechanism for a strong and weak electrical combination board, characterized in that at least a part of the part that is not made of electrical shielding material is omitted.