JP4995246B2 - Outdoor equipment mounting structure to aerial support wire - Google Patents

Description

  The present invention relates to an outdoor equipment mounting structure on an aerial support line in which outdoor equipment used in, for example, a simple mobile phone system is suspended and supported on an aerial support line such as a messenger wire installed between utility poles.

  For example, messenger wires installed between utility poles are attached in a state where outdoor devices such as cable TV amplifiers are suspended and supported (see, for example, FIG. 6 of Patent Document 1).

  Since this outdoor device accommodates a wireless communication device or the like, a form in which the above-described communication device or the like is accommodated in a resin case is generally employed because of the necessity of transmitting radio waves in communication.

  The outdoor equipment is attached in a state where it is suspended and supported on the messenger wire by a hanging plate having an inverted L-shaped cross section. This hanging plate having an inverted L-shaped cross section is arranged above an outdoor device, and is a top plate portion to which a messenger wire is attached by a mounting bracket, and is bent downward from one end of the top plate portion to be used outdoors. It is arrange | positioned at the back side of an apparatus, and the case of the outdoor apparatus is comprised with the side-plate part attached by screwing.

JP-A-9-149533 (see FIG. 6)

  By the way, there is a communication device housed in an outdoor device supported by being suspended by a messenger wire as a heat source. When such a communication device serving as a heat source is accommodated in a metal case, the heat can be released to the case. However, the outdoor device described above in which the communication device serving as a heat source is accommodated in a resin case. Then, since the resin case is less likely to transmit the internal heat to the outside as compared with the metal case, the internal temperature of the case may exceed the operation limit temperature of the communication device due to heat generation of the communication device. As described above, when the internal temperature of the case exceeds the operation limit temperature of the communication device, the operation of the communication device is stopped.

  Therefore, the present invention has been proposed in view of the above-described problems, and the object of the present invention is to cause the internal temperature of the case to exceed the operation limit temperature of the communication device due to heat generation of the communication device, and to operate the communication device. An object of the present invention is to provide an outdoor equipment mounting structure on an aerial support line that can be prevented from stopping.

As a technical means for achieving the above-mentioned object, the present invention provides an aerial support line in which a heat source device is supported by suspending an outdoor device housed in a resin case on an aerial support line with a metal suspension plate. An outdoor equipment mounting structure, wherein a heat radiation path for transferring heat from the heat source device to the suspension plate is provided between the heat source device and the suspension plate, and the heat radiation path is a metal of the heat source device. By attaching a metal mounting plate to which the housing is attached to the resin case and the suspension plate with a metal screw member, the housing, the mounting plate, the screw member, and the suspension plate of the heat source device It is configured . Here, the above-mentioned “heat source device” means a device such as a communication device serving as a heat source.

  In the present invention, by providing a heat dissipation path for transferring heat from the heat source device to the suspension plate between the heat source device and the suspension plate, the heat generated by the heat source device is outside the outdoor equipment, that is, outdoors. You can escape to the hanging plate located. As a result, in the outdoor equipment, it is possible to suppress the internal temperature of the case from exceeding the operation limit temperature of the heat source device due to the heat generation of the heat source device, and it is possible to avoid stopping the operation of the heat source device.

In the present invention, the heat dissipation path is formed by attaching a metal mounting plate, to which the metal casing of the heat source device is attached, to the case and the suspension plate by a metal screw member, It is comprised with the mounting board, the screwing member, and the suspension board . This ensures, without separately providing a radiation path, may utilize the mounting structure of the outdoor equipment for mounting structures, and hanging plate of the heat source device with respect to the case constituting the radiation path.

  The hanging plate according to the present invention is disposed above the outdoor device, and a ceiling plate portion with an aerial support wire attached thereto by a mounting bracket, and is bent downward from one end of the ceiling plate portion to form the outdoor device. It is desirable to be comprised by the side-plate part arrange | positioned at the back side of this, and attached to the case of the said outdoor apparatus with the screwing member. In this way, the heat dissipation path can be easily configured and a large heat dissipation effect can be ensured.

  The suspension plate in the present invention is preferably formed so that a large number of holes are scattered over the entire surface. In this way, if the large number of holes are formed so as to be scattered over the entire surface, the surface area of the suspension plate can be increased, so that the heat dissipation effect can be further exhibited.

  Using the heat dissipation path in the present invention as a conductive path, a surge protection element that absorbs a surge that intrudes from the input line between the input line connected to the heat source device and the aerial support line connected to the ground is used for the heat dissipation. A structure connected through a route is desirable. Thus, by using the heat radiation path, a surge entering from the input line of the heat source device can be quickly absorbed by the surge protection element, and the heat source device can be easily protected by simple means.

  As an aerial support line in the present invention, a messenger wire installed between utility poles is applicable. In addition, this invention is applicable also to other aerial support lines other than the said messenger wire.

  According to the present invention, by providing a heat dissipation path for transferring heat from the heat source device to the hanging plate between the heat source device and the hanging plate, the heat generated in the heat source device is outside the outdoor equipment, that is, You can escape to the hanging plate located outdoors. As a result, in the outdoor equipment, it is possible to prevent the internal temperature of the case from exceeding the operation limit temperature of the heat source device due to heat generation of the heat source device, and it is possible to avoid the operation of the heat source device from being stopped. The reliability of outdoor equipment can be improved, and the life of outdoor equipment can be extended.

It is the perspective view which abbreviate | omitted a part of outdoor equipment mounting structure in embodiment of the outdoor equipment mounting structure to the aerial support line which concerns on this invention. In embodiment of this invention, it is a front view which shows the state which removed the front cover of the outdoor equipment mounting structure. In embodiment of this invention, it is a perspective view which shows the state which suspended and supported outdoor apparatus on the messenger wire. FIG. 4 is a front view of FIG. 3. FIG. 5 is a left side view of FIG. 4. It is a perspective view which shows the state which removed the outdoor equipment from the attachment structure of FIG. 3, and opened the front cover of the outdoor equipment.

  An embodiment of an outdoor equipment mounting structure to an aerial support line according to the present invention will be described in detail below. In the following embodiment, for example, an attachment structure in which outdoor equipment such as an amplifier for cable TV is suspended and supported by a messenger wire that is an aerial support line installed between utility poles will be exemplified.

  3 to 5 show an attachment structure in which the outdoor device 10 is suspended and supported by a messenger wire 20 via a metal suspension plate 30. FIG. FIG. 6 shows a state where the outdoor device 10 is removed from the mounting structure of FIG. 3 and the front cover 12a of the outdoor device 10 is opened.

  As shown in FIGS. 3 to 6, the outdoor device 10 accommodates the wireless communication device 11, and therefore accommodates the communication device 11 in the resin case 12 from the necessity of transmitting radio waves in communication. It has a form. The case 12 has a structure in which a resin front cover 12a is pivotally attached to an opening lower portion of a resin casing so as to be freely opened and closed.

  As shown in FIGS. 3 to 6, the outdoor device 10 is attached in a state where it is suspended and supported by the messenger wire 20 by a hanging plate 30 having an inverted L-shaped cross section. The hanging plate 30 having an inverted L-shaped cross section is disposed above the outdoor device 10, and a top plate portion 32 to which the messenger wire 20 is attached by a mounting bracket 31, and downward from one end of the top plate portion 32. The outer plate 10 is bent and disposed on the back side of the outdoor device 10, and the case 12 of the outdoor device 10 includes a side plate portion 33 attached by screwing.

  Some communication devices 11 housed in the outdoor device 10 serve as heat sources. If the communication device 11 serving as a heat source is accommodated in a metal case, the heat can be released to the case, but the communication device 11 serving as a heat source is accommodated in the resin case 12 as described above. In the outdoor device 10, the resin case 12 is less likely to transmit the internal heat to the outside as compared to the metal case. Therefore, the internal temperature of the case 12 exceeds the operation limit temperature of the communication device 11 due to heat generation of the communication device 11. There is a case. As described above, when the internal temperature of the case 12 exceeds the operation limit temperature of the communication device 11, the operation of the communication device 11 is stopped.

  Therefore, in this embodiment, in order to prevent the internal temperature of the case 12 from exceeding the operation limit temperature of the communication device 11 due to heat generation of the communication device 11, the operation of the communication device 11 is stopped in advance. A heat radiation path for transferring heat from the communication device 11 to the suspension plate 30 is formed between the suspension plate 30 and the suspension plate 30 as follows.

  As shown in FIGS. 1 and 2, a communication device 11 serving as a heat source housed in an outdoor device 10 has a metal casing 11a, and the casing 11a is attached to a metal mounting plate 13 with screws 14 (four). ). The mounting board 13 is fixed to the case 12 and the suspension board 30 with screws 15 (four locations) that are metal screw members. In this mounting plate 13 fixing structure, the screw 15 is inserted into the hole 12 b of the case 12 and screwed into the screw hole 34 (see FIG. 6) of the side plate portion 33 of the suspension plate 30. It is fixed to the suspension plate 30 via

  By adopting such a structure, the heat dissipation path for transferring heat from the communication device 11 to the suspension plate 30 is configured by the housing 11 a, the mounting plate 13, the screw 15, and the suspension plate 30 of the communication device 11. . Thereby, the heat generated in the communication device 11 is transmitted from the housing 11a of the communication device 11 to the suspension plate 30 via the mounting plate 13 and the screw 15, and is located outside the outdoor device 10, that is, outdoors. Is dissipated by the hanging plate 30.

  Thus, by providing a heat dissipation path for transferring heat from the communication device 11 to the suspension plate 30 between the communication device 11 and the suspension plate 30, heat generated in the communication device 11 serving as a heat generation source is outdoors. It is possible to escape to the hanging plate 30 located outside the equipment 10, that is, outdoors. As a result, the outdoor device 10 can suppress the internal temperature of the case 12 from exceeding the operation limit temperature of the communication device 11 due to the heat generated by the communication device 11, and the operation of the communication device 11 can be stopped. Can be avoided.

  As shown in FIGS. 1 and 6, the suspension plate 30 described above is formed such that a large number of holes 35 are scattered over the entire surface of the top plate portion 32 and the side plate portion 33. These many holes 35 may be formed, for example, by punching simultaneously with the pressing of the suspension plate 30.

  As described above, if the top plate portion 32 and the side plate portion 33 of the suspension plate 30 are formed so that a large number of holes 35 are scattered over the entire surface, the surface area of the suspension plate 30 can be increased. Therefore, the heat dissipation effect by the hanging plate 30 can be further exhibited, and the internal temperature of the case 12 can be further suppressed from exceeding the operation limit temperature of the communication device 11 due to heat generation of the communication device 11.

  By the way, as shown in FIG. 2, the communication apparatus 11 accommodated in the outdoor device 10 is connected to a power cable 11b and a communication cable 11c as input lines, and a lightning surge is transmitted from the power cable 11b and the communication cable 11c. May break down the communication device 11.

  Therefore, a surge protection element 40 that absorbs a lightning surge entering from the power cable 11b or the communication cable 11c of the communication device 11, such as a varistor or a surge absorber, is connected between the power cable 11b and the communication cable 11c and the ground (see FIG. 2). When the surge protection element 40 is connected between the power cable 11b and the communication cable 11c of the communication device 11 and the ground, the above-described heat dissipation path is used as a conductive path.

  That is, since the heat dissipation path is configured by the casing 11a of the communication device 11, the mounting plate 13, the screw 15, and the suspension plate 30, it can be used as a conductive path. The surge protection element 40 is electrically connected to the power cable 11b and the communication cable 11c of the communication device 11, and the surge protection element 40 is mechanically attached to the mounting board 13 and electrically connected to the mounting board 13 by the ground wire 40a. Connecting.

  On the other hand, the above-described suspension plate 30 is grounded via the messenger wire 20. Therefore, the power cable 11b and the communication cable 11c of the communication device 11 are grounded through the surge protection element 40 using the mounting plate 13, the screw 15, the suspension plate 30 and the messenger wire 20 as a conductive path.

  In this way, by using the heat dissipation path formed by the housing 11a, the mounting plate 13, the screw 15 and the suspension plate 30 of the communication device 11 as a conductive path, the power cable 11b and the communication cable 11c of the communication device 11 are used. The surge protection element 40 can quickly absorb the lightning surge that enters from the network, and the communication device 11 can be easily protected from the lightning surge by simple means.

  In the above embodiment, the case where the aerial support line is applied to the messenger wire 20 installed between the utility poles has been described. However, the present invention is not limited to this, and the aerial support line other than the messenger wire 20 is used. It is also applicable to.

  The present invention is not limited to the above-described embodiments, and can of course be implemented in various forms without departing from the gist of the present invention. It includes the equivalent meanings recited in the claims and the equivalents recited in the claims, and all modifications within the scope.

DESCRIPTION OF SYMBOLS 10 Outdoor equipment 12 Resin case 13 Metal mounting board 15 Metal screwing member (screw)
20 Overhead support line (messenger wire)
30 Metal suspension plate 32 Top plate portion 33 Side plate portion

Claims (5)

A heat source device is an outdoor device mounting structure to an aerial support line in which an outdoor device housed in a resin case is supported by a metal suspension plate on an aerial support line, the heat source device and the suspension plate A heat radiating path for transferring heat from the heat source device to the suspension plate, and the heat radiating path includes a resin mounting case and a metal mounting plate to which a metal casing of the heat source device is attached. An outdoor device for an aerial support line, characterized by comprising the housing, the mounting plate, the screwing member, and the hanging plate of the heat source device by being attached to the hanging plate with a metal screwing member. Mounting structure. The suspension plate is disposed above the outdoor device, and a top plate portion with an aerial support wire attached by a mounting bracket, and is bent downward from one end of the top plate portion to be formed on the back surface of the outdoor device. The outdoor equipment mounting structure to an aerial support wire according to claim 1 , wherein the outdoor equipment mounting structure is configured by a side plate portion disposed on a side and attached to a resin case of the outdoor equipment by a screw member. Said hanging plate, a large number of pores outdoor device mounting structure of the overhead supporting beam according to claim 1 or 2 is formed so as scattered over the entire surface. Using the heat dissipation path as a conductive path, a surge protection element that absorbs a surge entering from the input line between the input line connected to the heat source device and the aerial support line connected to the ground is connected to the heat dissipation path. The outdoor apparatus attachment structure to the aerial support wire as described in any one of Claims 1-3 connected via. The outdoor equipment attachment structure to the aerial support line according to any one of claims 1 to 4 , wherein the aerial support line is a messenger wire installed between utility poles.

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