Alps Electric Co., Ltd.

Nippon Sheet Glass Company, Limited

Tadaaki Onishi

Tomoki Ikeda

Masashi Nakagawa

Tomotaka Suzuki

Masaru Shikata

Yoshio Sugimori

Hirotoshi Maegawa

Yuji Baba

Kazumi Yatabe

A cover structure for an electronic circuit module includes a circuit board and a box-shaped cover integrated to each other. An electronic component is mounted on the circuit board. The cover has at least one open side. The cover includes a top plate and a mounting leg. The top plate is disposed so as to oppose the circuit board. The mounting leg is joined to the circuit board. The mounting leg is bent and extends from an outer periphery of the top plate. The top plate includes a bend portion and a cutaway portion. The bend portion is connected to the mounting leg. The cutaway portion is provided near the bend portion.

Cover structure for electronic circuit module

An in-vehicle electronic device includes a circuit board in which a preamplifier circuit, and the like are provided, and a holding case, which stores the circuit board. The holding case is configured by combining a lower case which is fixed to a glass surface in which an antenna radiation conductor is arranged, and an upper case which is detachably mounted on the lower case so as to cover the lower case, so that a connection terminal held in the lower case is brought into press-contact with an electrode of the circuit board. When the upper case is removed from the lower case, an elastic piece is bent by pushing a tip of a protruded portion to a base end side, or a snap claw is separated from a locking hole by inserting a tool such as a driver, in between a tongue piece and the elastic piece.

In-vehicle electronic device

An on-vehicle electronic device () is for amplifying an external signal received by an antenna radiating conductor () patterned on a glass surface () of a vehicle window, and for sending the amplified signal to a receiver circuit. The on-vehicle electronic device () mainly includes an attachment base () including terminal members () and (), a circuit board () provided with an antenna circuit including a preamplifier circuit, attachment screws () and () for attachably and detachably fixing the circuit board () to the attachment base (), a shield case () for covering the preamplifier circuit, and a radome () for covering the entire device. The terminal members () and () are solder-joined to feed portions () and () of the antenna radiating conductor (). The lower surface of the circuit board () is provided with a feeding electrode () and an earth electrode (), which are pressure-contacted with the terminal members () and (), respectively, through fastening of the attachment screws () and ().

Easily maintainable on-vehicle electronic device

There is provided a vehicle antenna device having a high connection reliability and mounted simply. A vehicle antenna device comprise a film antenna unitin which an emission conductor patternis formed on a resin filmand a power feeding terminalis exposed to a tongue partan insulating casinghaving slitsandfor inserting the tongue partand an openingfor inserting a coaxial cable, and installed in the vicinity of the film antenna unit; and a circuit substratewhich is housed and retained within the casingand connected to the power feeding terminaland the coaxial cablewherein the tongue part is loaded within the casingby passing the tongue partthrough any one of both slitsandand a an electrode pinconnected electro-mechanically to the circuit substrateis pressure-contacted to the power feeding terminalwithin the casing

Vehicle antenna device having high power feeding reliability

A patch antenna includes a dielectric substrate having a through-hole, a patch electrode on the dielectric substrate, and a feed pin inserted in the through-hole. A head of the feed pin is soldered to the patch electrode. The bottom surface of the head of the feed pin has projections for generating a clearance between the bottom surface of the head and the opposing surface of the patch electrode, which is filled with a solder. The solder can function as a cushion that prevents a thermal contraction or a thermal expansion of the head of the feed pin to directly affect the dielectric substrate.

Patch antenna having suppressed defective electrical continuity

In the waterproof structure of an antenna of the present invention, a width of an open end top of a second notch provided on a projection of a second case is formed so as to be wider than a diameter of a cable, the cable that crosses a recess of a first case is placed in a first notch, and the projection that projects into the recess allows an adhesive to penetrate in the second notch and the adhesive seals a space between the cable and the second notch to thereby seal containers. As the result, a space between a top half of the cable and the second notch is sealed securely with the adhesive, the containers are sealed securely, and reliable waterproofing is realized.

Excellent waterproof antenna

A GPS receiving antenna is disclosed wherein a hole for communication between a recess portion and a receptacle portion is formed in a bottom wall with the recess portion formed therein and an adhesive is applied into the hole to bond an antenna body and a magnet with each other. Therefore, the adhesive does not protrude to the exterior of the recess portion, so that the appearance of the GPS receiving antenna is improved and a surface attraction of the magnet is ensured, thus ensuring a more positive mounting of the antenna than in the prior art.

Growing community of inventors

Fukushima-ken, Japan

Tadaaki Onishi