JPH07212115A - Waterproof antenna - Google Patents

Abstract

PURPOSE:To improve water resistance and impact resistance for an antenna by preventing flooding from the wall mounting screw part of an antenna mounting base from occurring, and protecting the antenna with a dressing case in duplicate. CONSTITUTION:A sealing packing 17 is abutted with the wall mounting screw part 11a of the mounting base 11 and a rib 11c for sealing provided in the inside of a case mounting boss part 11b, and a substrate 15 is incorporated by sealing in the inside on the packing, and it is fixed with a screw 19 by abutting the end face of a case 14 equipped with an antenna pole 16. A coaxial cable 12 for output is mounted by sealing in the cable mounting hole 11d of the mounting base 11 via a cable boot 13 for sealing, and also, the dressing case 18 is loaded on the outside of the case 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to a waterproof antenna device installed indoors or outdoors.

[0002]

2. Description of the Related Art FIG. 2 shows the structure of a conventional waterproof antenna device. In FIG. 2, 1 is a mounting base, 2 is an output coaxial cable that is inserted from the insertion hole 1 a of the mounting base 1, 3 is a chassis, and a connecting fitting 4 to which the coaxial cable 2 is connected, and the connecting fitting 4 It has a substrate 6 connected by a connection cord 5. Reference numeral 7 is a case that covers the chassis 3, and is attached to the screw hole 1b of the attachment base 1 by four screws 9 via a sealing packing 8.

As described above, also in the conventional waterproof antenna device, since the space between the mounting base 1 and the case 7 is sealed by the sealing packing 8, the internal electric circuit portion can be prevented from being flooded.

[0004]

However, in the above-mentioned conventional waterproof antenna device, water penetrates through the gap between the mounting base 1 and the wall surface, and the mounting screw hole 1b for mounting the mounting base 1 is formed.
There is a problem in that the electric circuit section and the connection section inside are short-circuited by the water that has penetrated into the chassis 3 through the insertion hole 1a of the coaxial cable 2.

The present invention is to solve the above-mentioned conventional problems, and to provide an excellent waterproof antenna device capable of protecting the internal electric circuit part against the intrusion of water from the mounting screw part. It is intended.

[0006]

In order to achieve the above object, the present invention provides a sealing packing inside a mounting screw portion of a mounting base, and the sealing packing is sandwiched between the mounting base and a case so as to provide an internal electric circuit portion. And its connection is hermetically sealed.

[0007]

Therefore, according to the present invention, by arranging the hermetically sealed portion by the sealing packing inside the mounting base fixing screw portion, the water that penetrates from the mounting screw portion to the electric circuit portion inside the case and the connection portion thereof. Intrusion can be prevented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. FIG. 1 shows the configuration of an embodiment of the present invention. In FIG. 1, reference numeral 11 denotes a mounting base fixed to a wall surface or the like, and eight mounting screw portions 11 to the wall are provided.
a, four mounting boss portions 11b for mounting the case, a sealing rib 11c, a cable mounting hole 11d, a coaxial cable connector 11e, and the like are provided. Sealing rib 11
The inside of c has a closed structure with no gap other than the cable mounting hole 11d. A coaxial cable 12 has a cable boot 13 attached to and detached from a cable mounting hole 11d of the mounting base 11 at the tip. Reference numeral 14 is a case, the inside of which is hermetically sealed and the substrate 15 is built in.
The antenna pole 16 is attached with the joint sealed. Reference numeral 14a is a mounting hole for mounting the case 14 on the mounting base 11. Reference numeral 15a is a connector receiver that is attached to and detached from the coaxial cable connector 11e of the mounting base 11. Reference numeral 17 is a sealing packing, 18 is a decorative case, and 19 is a case mounting screw.

In the above embodiment, after the mounting base 11 is fixed to the wall by the mounting screw portion 11a and the coaxial cable 12 is connected to the cable cable mounting hole 11d, the sealing packing 17 is connected to the sealing rib 11c and the case 11. The case 14 is sandwiched therebetween, and the case 19 is fixed to the mounting base 11 by passing the screw 19 through the mounting hole 14a and screwing the case 14 with the mounting boss portion 11b of the mounting base 11. As a result, the board 15 inside the case 14 is electrically connected to the coaxial cable 12 by connecting the connector receiver 15a and the coaxial cable connecting connector 11e. The makeup case 18 is attached to the case 14 by sliding fitting.

As described above, according to the above-described embodiment, the board 15 on which the electric circuit portion is mounted is hermetically contained in the case 14, and the case 14 is hermetically sealed in the mounting base 11 by the sealing packing 17. Since it is housed in the space and the cable mounting hole 11d for mounting the coaxial cable 12 is sealed by the cable boot 13, the internal electric circuit can be protected from the water entering from the mounting screw portion 11a into the wall of the mounting base 11 or other portions. It has the advantage of protecting parts and connections. In addition, the decorative case 18 double protects the substrate 15 inside the case 14,
Further, the water resistance can be increased, and the decorative case 18 also has a function of weakening the impact caused by the collision of an external object.

[0011]

The present invention has the following effects, as is apparent from the above embodiments. 1. By arranging the sealing packing inside the mounting base mounting screw portion and sealing the inside, it is possible to prevent water from entering the internal electric circuit portion and its connecting portion. 2. By covering the internal electric circuit section double by covering the makeup case,
Further, drip-proof property and water resistance are improved, and impact resistance can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a waterproof antenna device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a waterproof antenna device in a conventional example.

[Explanation of symbols]

 11 Mounting Base 11a Mounting Screw 11b Mounting Boss 11c Sealing Rib 11d Cable Mounting Hole 12 Coaxial Cable 13 Cable Boot 14 Case 14a Mounting Hole 15 Board 16 Antenna Pole 17 Sealing Packing 18 Decorative Case 19 Screw

Claims (2)

[Claims] 1. A waterproof antenna in which an internal electric circuit portion provided in a case and its connecting portion are installed inside a space of a mounting base sealed by a sealing packing, and the case is fixed to the mounting base outside the sealed space. apparatus. 2. The waterproof antenna device according to claim 1, wherein a decorative case is further covered on the outside of the case to protect the internal electric circuit section.