JPH01283999A - Cable inlet structure for device - Google Patents

Abstract

PURPOSE:To shield an inlet to match the inlet shape of a connection cable by suspending strips each having electric or electromagnetic shielding effect in parallel with an upper edge, and shortening the connection cable stacked and contained from a lower edge at the fine band by length varying means to shield a vacant part. CONSTITUTION:An opening face 3 perpendicular to the part of a housing 1 of a device is provided, and so suspended in parallel from an upper edge 4 as to cover the face 3 with a strips 6 having an electric or electromagnetic shielding effect with length varying means and adjacent conducting means. When a connection cable 9 is stacked on a lower edge 5 to be introduced into the opening face 3, the lower end of the strip 6 is varied in length by the length varying means to match the stacking shape of the cable 9 to shield a vacant part. Further, since the strips 6 are conducted at its ends secured to the edge 4 and also conducted longitudinally by conducting means, a long gap is not generated between the strips 6. Thus, the vacant part of the cable inlet 2 can be shielded to match the inlet shape of the cable 9 without gap.

Description

[Detailed Description of the Invention] [Summary] Regarding the cable entry structure of a device provided in the housing of an electronic device for connection with the outside, the vacant part of the four cables is shielded without a gap according to the shape of the four connecting cables. A vertical opening is provided in a part of the casing of an electronic device for connection to the outside, and a length variable means is installed at the cable inlet for connecting the connecting cable, and The connection cable portion has the above-mentioned length, in which thin strips having an electrical or electromagnetic Me effect and having a conductive means are hung in parallel on the upper edge so as to cover the opening surface, and are stacked and housed from the lower edge. The narrow band is shortened by the length variable means to cover the empty part of the opening surface.

[Industrial application field]

TECHNICAL FIELD The present invention relates to a cable inlet structure for a device provided in a housing of an electronic device for connection to the outside.

Electronic devices used in information communication systems and information systems are installed in computer rooms and offices, so they require countermeasures against static electricity and radio wave shielding, and gaps at cable entry ports should be closed or minimized as much as possible. This is strongly required.

[Conventional technology]

FIG. 4 shows an example of a conventional cable inlet.

An example of a conventional electronic device is an electronic device with a housing structure, which is installed independently on the floor, and is equipped with cables 4 and 21 at the bottom of the back surface of the housing 11, and the connection cable 9 is connected to an opening provided at the bottom of the back cover 19 of the housing 11. It is introduced from plane 31.

This cable introduction port 21 further has a structure in which a shielding plate 29 having a size that covers the opening surface 31 is fixed upwardly with variable screws in contact with the inner surface of the back cover 19, and the connecting cable 9 is connected to the shielding plate 29. Depending on the amount, the positions of the two shielding plates are changed to form the opening surface of the required microphthalmia and to shield the remaining mouth surface.

[Problem to be solved by the invention]

However, ■ Since the cable inlet 21 can only be adjusted in the height direction, the lower edge of the shielding plate 29 must be aligned with the thickest cable part or the part where the cables are most concentrated, leaving gaps in other parts. , the shielding effect could not be sufficiently satisfied.

■ Furthermore, there is a risk that rats may enter through such gaps and cause damage, and the appearance is also undesirable.

There were problems such as.

SUMMARY OF THE INVENTION In view of the above problems, the present invention has been made with the object of providing a structure for shielding the empty portion of a cable introduction port without any gaps in accordance with the introduction shape of a connecting cable.

[Means to solve the problem]

As shown in the principle diagram of FIG. 1, the above problem is solved by providing a vertical opening 3 in a part of the housing 1 of the electronic device for connection to the outside, and connecting the connecting cable 9 by λ5 at the cable inlet 2. , a narrow strip 6 having an electrical or electromagnetic shielding effect, comprising length variable means and mutually adjacent conductive means,
The connecting cables 9 are arranged in parallel to the upper edge 4 and hung down from the lower edge 5 so as to cover the opening surface 3, and the narrow strips 6 are shortened by the length variable means. This is solved by the cable entry structure of the device according to the invention, which shields the empty space.

[For production]

That is, since the lower end of each of the parallel shielding strips is adapted to the shape of the introduced cable, the gap can be kept small under the width plate of the strips, thus serving the purpose.

As shown in the principle configuration diagram in FIG. 1, connection cables 9 are introduced into the opening surface 3 of the device housing 1, stacked on the lower edge 5,
Narrow strips 6 arranged in parallel are suspended from the upper edge 4, and the lengths of the lower ends of the strips 6 can be changed according to the stacked shape of the connection cables 9. The size can be suppressed to the size below the width plate of No. 6, and the smaller the width, the smaller the gap can be.

As a means for varying the length of the thin strip 6, for example, in the case of a thick strip 6, concave shapes or notches are provided at predetermined intervals to facilitate cutting or bending, so that the length can be easily varied. be.

Furthermore, the adjacent strips 6 arranged in parallel can be electrically connected at the ends fixed to the upper edge 4, by means of electrically conductive means, for example, by contacting and electrically connecting the strips 6 with their edges overlapping each other, so that they can also be electrically connected in the longitudinal direction. Since conduction is established, long gaps are not created between the narrow strips 6.

In this way, it is possible to provide a structure in which the vacant part of the cable introduction port is shielded without any gaps in accordance with the introduction shape of the connecting cable.

〔Example〕

The present invention will be specifically described below with reference to embodiments shown in the drawings.

The same reference numerals indicate the same objects throughout the figures.

FIG. 2(a) is a configuration diagram of an embodiment of the present invention, and FIG.
FIG. 3 shows an enlarged cross-sectional view taken along the line A-A, FIG.

In each of the present embodiments, a cable introduction port 2 is provided on the back surface of the lower part of the housing 1, and the vertical opening surface 3 has a size of 20×35c+n, and a connecting cable 9 is introduced depending on the type of component device.
The type and amount of cables differ, and also vary depending on the number of installed systems, but the most commonly used connection cable 9 is 20mmφ.
It is.

An example shown in FIG. 2 is a synthetic resin molded material with a surface made of copper.
It uses a thin strip 61 that is nickel-plated and has electrical properties.The shape of the narrow strip 61 is 25 mm wide x 1.2 mm thick.
Groove lines 63 are provided at intervals of 20 mm in the longitudinal direction, and projections 64 are provided on one side edge and recesses 65 are provided on the other side edge at intervals of 40 rhymes.

The ends of the narrow strips 61 are fixed to the upper edge 4 of the opening surface 3, and are arranged in parallel and suspended.

At this time, as a conduction means between the adjacent strips 61, the edges of the adjacent strips 61 are overlapped by 5 am, and the protrusion 64 is placed in the adjacent recessed hole 65, and the left end strip 61 is Five or more protrusions 64 are fitted and fixed on the edge of the opening surface 3, and the narrow strips 61 on the right end are also stacked five or more times and fixed to the edge of the opening surface 3 with screws using recessed holes 65.

When the connecting cables 9 are introduced, the lower ends of the narrow strips 61 at each position are placed in the grooves at the positions closest to the stacked shape of the connecting cables 9! , it 63
Use by bending and cutting.

After cutting, don't forget to fit the removed protrusion 64 into the recess 65 to complete the process.

In another embodiment shown in FIG. 3, the thin strip 62 is not made as a single item, but is made into an integrally molded synthetic resin shielding plate 22 that covers the opening surface 3, and is 20 cm long x 37 cm wide and 1.5 mm thick. Parallel slits are provided in a flat plate at intervals of 20 mm to form a large number of narrow strips 62 whose upper ends are connected, and the narrow strips 62 are further provided with groove lines 63 and protrusions on the center line as in the above embodiment. 64, and the surface is conductive plated.

On the opening surface 3, metal horizontal bars 23 are fixed at both ends with screws at 40-fold intervals, and recessed holes 65 are provided in these bars.

The upper end portion of the shielding plate 22 is fixed to the upper edge 4 of this opening surface 3 from the front, and the protrusions 6 of each narrow strip 62 are
4 into the recessed hole 65 of the horizontal bar 23 on the back side and fix it.

After the connection cable 9 is introduced, the length of each strip 62 is cut to match the stacked shape, as in the above embodiment.
Don't forget to fit the removed protrusion 64 into the recessed hole 65 to complete the process.

At this time, the horizontal bar 23, which obstructs the introduction of the connection cable 9, may be removed.

Thus, in any of the embodiments, the gap can be 20 mm or less and the slit shape can be suppressed to 40 mm or less.

In the above embodiment, if the shielding plate 22 is shaped into a thin iron plate, a recessed hole 65 is provided at the position of the protrusion 64, and the horizontal bar 23 is molded with synthetic resin and provided with a protrusion, the electromagnetic shielding effect can be improved. A high value is possible.

The above embodiments are merely examples, and the dimensions and shapes are not limited to those described above.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to obtain a structure in which the empty part of the cable inlet is shielded without any gaps according to the four-person shape of the connection cable, and it is possible to cope with an increase in the number of connection cables due to the addition of mounting. The practical effects are significant.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the basic configuration of the present invention, FIG. 2 is an embodiment of the present invention, FIG. 3 is another embodiment of the present invention, and FIG. 4 is a conventional cable introduction port. - In the figure, 1.11 is the housing, 2 and 21 are the cable entry ports,
3.31 is the opening surface, 4 is the upper edge, 5 is the lower edge, 6, 6L62 is the strip, 9 is the connection cable, 19 is the back cover, 22.29 is the shielding plate,
23 is a horizontal bar, 63 is a groove line, 64 is a projection, and 65 is a recessed hole. Also; 4. No: Yes/ Figure 1 Car implementation of the present invention No. 7 in row A (Pure area diagram,

Claims (1)

[Claims] A vertical opening (3) is provided in a part of the housing (1) of the electronic device for connection to the outside, and a cable inlet (2) for introducing a connecting cable (9) has a long length. A narrow strip (6) having an electrical or electromagnetic shielding effect and having a width variable means and a mutual conduction means is arranged on the upper edge (4) so as to cover the opening surface (3). The connection cables (
9) A cable inlet structure for a device, characterized in that the length variable means shortens the thin strip (6) to cover the empty part of the opening surface (3).