JP4541087B2 - Case - Google Patents

Description

  The present invention relates to a case, and more particularly to a case in which a substrate on which an electronic component is mounted is accommodated.

  Conventionally, devices that house a board with electronic components inside are connected by cables, and when multiple cables are wired, the cables are designed to prevent sag due to the weight of the cables and to route them neatly. It was press-fitted and fixed to a cable fixture arranged independently of the device (see Patent Document 1 and Patent Document 2).

Japanese Utility Model Publication No. 57-47813 Japanese Utility Model Publication No. 58-22780

  However, according to the above-described conventional technique, in order to fix the cable to the cable fixture that is arranged independently of the device in which the board on which the electronic component is mounted is housed, the cable fixture is provided between the device and the device. There is a problem that a space for disposing the device is required and the devices cannot be disposed close to each other.

  This invention is made in view of the above, Comprising: It aims at obtaining the case which fixes a cable and can arrange | position an apparatus and an apparatus closely, without providing a cable fixing tool separately. .

In order to solve the above-described problems and achieve the object, the present invention provides a case in which a substrate on which an electronic component is mounted is accommodated therein, and a groove that accommodates a cable connected to the substrate, and an opening in the groove. A first cable guide extending from one opening edge so as to cover a part of the cable and locking the cable accommodated in the groove, and the other opening edge so as to cover a part of the opening of the groove And a second cable guide extending from the portion and locking the cable accommodated in the groove is formed so as to overlap at one end portion of the groove without shifting in the wiring direction. A locking portion, a third cable guide that extends from one opening edge so as to cover a part of the opening of the groove and locks the cable accommodated in the groove, and a part of the opening of the groove The cable that extends from the other opening edge so as to cover the cable and is accommodated in the groove One of the fourth cable guides to be stopped is arranged at the other end portion of the concave groove, and the other is formed by being arranged without overlapping with the third or fourth cable guide in the wiring direction. The second locking portion thus formed is integrally molded outside.

  According to the present invention, the cable connected to the substrate is accommodated in the groove formed outside, and the cable guide extending from the opening edge of the groove locks the cable. For this reason, it is not necessary to separately provide a cable guide for fixing the cable.

According to the present invention, the first and third cable guides extending from one opening edge and the second and fourth cable guides extending from the other opening edge are connected to the board. Lock. For this reason, even if it is a case where the both ends of a cable are connected, a cable can be accommodated in a ditch | groove.

According to the present invention, a third cable guide and a fourth cable guides molded without leaving between and not overlapping the wiring direction is engaged a cable connected to the substrate. For this reason, even if it does not bend a cable, a cable can be accommodated in a ditch | groove and the disconnection of a cable can be prevented.

  According to the present invention, since it is not necessary to separately provide a cable guide for fixing the cable, the wiring space can be reduced and the devices can be disposed close to each other. As a result, there is an effect that the control panel on which a plurality of devices are arranged can be made small.

  Hereinafter, embodiments of a case according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

  1 and 2 are perspective views showing a case according to an embodiment of the present invention. FIG. 1 is a view showing a state before the cable is attached, and FIG. 2 is a perspective view showing a state after the cable is attached. It is.

  The case according to the embodiment of the present invention is a case 10 of an FA (Factory Automation) device 1 such as a programmable controller, and a substrate (not shown) on which electronic components are mounted is housed inside. A flat cable 2 in which conductive wires covered with a resin film are bundled in a band shape is connected to the substrate, and extends from the top of the case 10 to the outside as shown in FIG.

The outer left side surface 10A of the case 10 has a concave groove 11 having a rectangular cross section, a first cable guide 12A and a third cable guide 12B extending from the right opening edge of the concave groove 11, and a concave groove. a second cable guide 13 a and the fourth cable guide 13B extending from the left side opening edge portion are molded integrally.

  The concave groove 11 is a part that accommodates the flat cable 2, and the width of the concave groove 11 is substantially the same as or slightly wider than the width of the flat cable 2. The depth of the concave groove 11 is substantially the same as or slightly deeper than the thickness of the flat cable 2.

  The first cable guide 12A and the second cable guide 13A located on the upper part (the flat cable insertion side) of the outer left side surface 10A of the case 10 are formed to face each other, and the first cable guide 12A The distance between the front edge and the front edge of the second cable guide 13 </ b> A is formed narrower than the width of the flat cable 2. Accordingly, both side portions of the flat cable 2 accommodated in the concave groove 11 are locked by the first cable guide 12A and the second cable guide 13A at the upper portion of the outer left side surface 10A of the case 10.

Further, the lower edge of the third cable guide 12B and the upper edge of the fourth cable guide 13B located in the middle of the outer left side surface 10A of the case 10 are formed so as to be adjacent in the wiring direction. Therefore, the flat cable 2 accommodated in the concave groove 11 is locked in the order of the right side and the left side by the third cable guide 12B and the fourth cable guide 13B in the middle of the outer left side surface 10A of the case 10. Is done.

The distance between the leading edge of the first cable guide 12 A of the leading edge and or distance between the front edge of the second cable guide 13 A, a third cable guide 12B leading edge and the fourth cable guide 13B Is preferably 5/8 of the width of the flat cable 2.

In addition, the length in which the first cable guide 12A and the third cable guide 12B extend is the same as the length in which the second cable guide 13A and the fourth cable guide 13B extend. However, either one may be formed long and the other may be formed short to facilitate attachment / detachment.

Further, the shape of the front edge of the first cable guide 12A or the third cable guide 12B and the shape of the front edge of the second cable guide 13A or the fourth cable guide 13B are expected flat cables. It is preferable to make it an appropriate shape according to the frequency of 2 attachment / detachment. Specifically, when the flat cable 2 is expected to be attached and detached many times, it is preferable to chamfer the front edge so that the flat cable 2 can be easily detached. In the case where the number is expected to be small, it is preferable to have corners so that the flat cable 2 does not come off.

Furthermore, each cable guide 12 A, 12B, 13 A, for even corner portion formed by the front edge and side edges of 13B, similarly, be any suitable shape by detaching the frequency of the flat cable 2 that is expected preferable. Specifically, when the flat cable 2 is frequently attached and detached, it is preferable to chamfer the corners so that the flat cable 2 can be easily detached. It is preferable to have a corner so that the flat cable 2 does not come off.

According to the case 10 formed in this way, as shown in FIG. 2, the flat cable 2 extending from above the case 10 can be easily wired to the external left side surface 10 </ b> A of the case 10. Specifically, the position between, in the middle of the outer left side surface 10A of the case 10 of the first case and Burugaido 12A and the second cable guide 13A and groove 11 located on the top of the outer left side surface 10A of the case 10 The flat cable 2 is sequentially inserted between the third cable guide 12B and the concave groove 11 and between the fourth cable guide 13B and the concave groove 11 located in the middle of the outer left side surface 10A of the case 10. By doing so, wiring of the flat cable 2 is possible. The flat cable 2 thus wired is locked to the cable guides 12A, 13A, 12B, and 13B, and does not hang down due to the weight of the flat cable 2, and is wired in an orderly manner.

Even if the end of the flat cable 2 (the end opposite to the end connected to the substrate) is already connected to another FA device (not shown), the external left side surface of the case 10 first Ke Burugaido 12A and between the second cable guide 13A and the groove 11, a third located in the middle of the outer left side surface 10A of the case 10 of the cable guide 12B and groove 11 located on the top of 10A If the center portion of the flat cable 2 is bent and sandwiched between the fourth cable guide 13B located in the middle of the outer left side surface 10A of the case 10 and the concave groove 11, the flat cable 2 is Wiring is possible. In this case, the order in which the flat cable 2 is sandwiched may be any order.

  As described above, the FA device 1 having the case 10 in which the concave groove 11 and the cable guides 12A, 13A, 12B, and 13B are integrally formed on the outer left side surface 10A is provided with the cable duct 3 disposed below the FA device 1. 3, there is no need to provide a separate wiring space as shown in FIG. 3 between the adjacent FA devices 1, and as shown in FIG. 4, the adjacent FA devices are arranged in close contact with each other. The control panel can be made small.

  Further, when a wiring space as shown in FIG. 3 is separately provided between adjacent FA devices 1, it is necessary to design a control panel in consideration of the dimensions of FA device 1 and the wiring space. According to the case 10 of the FA device 1 according to the embodiment, as shown in FIG. 4, it is not necessary to provide a separate wiring space between the adjacent FA devices 1, and the control panel can be provided only by considering the dimensions of the FA device 1. Since it can be designed, the control panel can be easily designed.

Furthermore, the first cable guide 12A and the third cable guide 12B extending from the right opening edge of the groove 11 and the second cable guide 13A extending from the left opening edge of the groove 11 and As shown in FIG. 5, the fourth cable guide 13 </ b> B is formed so as to be opposed to and separated from the case when the case is viewed from above. As shown in FIG. 6, the rectangular hole 20 is formed in the case 1. Unlike the case in which the flat cable 2 is passed using the hole 20 as a guide, after connecting the end of the flat cable 2 (the end opposite to the end connected to the substrate) to the other FA device 1, between the groove 11 and the first cable guide 12 a and a second cable guide 13 a, allowed to be routed flat cable 2 between the third cable guide 12B and the fourth cable guide 13B Noh.

Further, according to the case 10 of the FA device 1 according to the above-described embodiment, the third cable guide 12B and the fourth cable guide 13B are formed so as to be adjacent in the wiring direction. as shown, a third cable guide 12B and the fourth cable guide 13A, by forming so as to be separated in the wiring direction, as shown in FIG. 8, to lock a duplicate flat cable in the wiring direction Compared to the case, the risk of disconnection can be reduced.

  As described above, the case according to the present invention is useful for a case of an FA device or the like, and is particularly suitable for a case of an FA device or the like disposed on a control panel.

It is a perspective view which shows the case which concerns on embodiment of this invention, Comprising: It is a figure which shows the state before cable attachment. It is a perspective view which shows the case which concerns on embodiment of this invention, Comprising: It is a figure which shows the state after cable attachment. It is a figure which shows the control board arrange | positioned by providing wiring space between adjacent FA apparatuses. It is a figure which shows the control panel arrange | positioned without providing wiring space between adjacent FA apparatuses. It is a partial plane enlarged view which shows the ditch | groove and cable guide which were shape | molded integrally with the case. FIG. 6 is an enlarged partial plan view showing a case to be compared with the case shown in FIG. 5. It is the elements on larger scale which show the case formed so that the 1st cable guide and the 2nd cable guide might be separated. FIG. 8 is a partial enlarged view showing a case to be compared with the case shown in FIG. 7.

1 FA device 2 flat cable 10 Case 10A outside the left side 11 the groove 12 A first Ke Burugaido
12B 3rd cable guide 13 A 2nd cable guide
13B 4th cable guide

Claims (1)

In a case that houses a board with electronic components on it,
A concave groove for accommodating a cable connected to the substrate;
A first cable guide extending from one opening edge so as to cover a part of the opening of the groove and locking the cable accommodated in the groove, and covering a part of the opening of the groove the second cable guide to lock the extension Mashimashi were housed in the recessed groove cable from the other opening edge portion are arranged to overlap without deviation in the wiring direction at one end of the groove as a first engagement portion which is made form by the,
So as to cover a portion of the third cable guide and the opening of the groove to lock the cable accommodated in the concave groove extends partially from one opening edge so as to cover the opening of the groove One of the fourth cable guides extending from the other opening edge and locking the cable accommodated in the groove is disposed at the other end of the groove, and the other is the third or fourth . A case in which a cable guide and a second locking portion formed by being arranged without being spaced apart from each other in the wiring direction are integrally molded outside.

Images