Roof antenna for vehicles and watertight structure for roof antenna for vehicles

• US 10,389,017 B2
• Filed: 12/15/2016
• Issued: 08/20/2019
• Est. Priority Date: 06/17/2016
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Cho, Yong Sik, Ryeu, Hee Kuk, Joung, Soon Bag, Park, Tae Byung, Kang, Gi Cho
• Primary Examiner(s): Magallanes, Ricardo I
• Application Number:
  US15/380,115
• Publication Number:
  US 20170365917A1
• Time in Patent Office: 978 Days
• CPC Class Codes: H01Q 1/1214 through a wall
• CPC Class Codes: H01Q 1/3275 mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
• CPC Class Codes: H01Q 1/42 Housings not intimately mechanically associated with radiating elements, e.g. radome
• CPC Class Codes: H01Q 1/422 comprising two or more layers of dielectric material H01Q1/425 takes precedence
• CPC Class Codes: H01Q 1/427 Flexible radomes

Abstract

A roof antenna attached to a vehicle includes an adhesive applied to a designated thickness, an upper case formed in a streamlined dome shape having an opened lower surface, and a lower case combined with the upper case, the lower case shielding the opened lower surface of the upper case and provided with an antenna module mounted on an upper surface of the lower case, wherein the lower case is combined with a roof of the vehicle, one surface of a pad formed of the adhesive is applied to a lower surface of the lower case, and another surface of the pad formed of the adhesive is attached to the roof.

Claims

1. A watertight structure of a roof antenna attached to a vehicle, comprising:

an upper case having at least one diaphragm and an opened lower surface;

a lower case configured to be combined with the upper case and having a groove at a portion thereof connected to the at least one diaphragm;

a base disposed on an upper surface of the lower case and located under an antenna circuit board;

an elastic body integrally attached to the base and including an inclined plane in the groove between the elastic body and the base;

a first adhesive applied to a portion of the groove of the lower case;

a second adhesive applied to a portion of the inclined plane of the elastic body;

a sealant applied to a region where the lower case and the at least one diaphragm of the upper case are bonded; and

an adhesive pad disposed between a lower surface of the lower case and a roof of the vehicle and having a prescribed thickness,

wherein the adhesive pad includes a sealant pad or a butyl pad,

wherein the elastic body is in contact with the upper surface and a side surface of the lower case, and

wherein a height of the elastic body is lower than a height of the base entirely.

2. The watertight structure according to claim 1, wherein an introduction of moisture and foreign substances into the roof antenna is prevented.

3. The watertight structure according to claim 1, wherein the base includes zinc or aluminum.

4. The watertight structure according to claim 1, wherein the groove has a closed curve shape.