Antenna, watch therewith and manufacture thereof
An antenna and watch case technology, applied in the direction of inductors with magnetic cores, antennas, antenna components, etc., can solve the problem that the antenna 61 cannot be miniaturized
Active Publication Date: 2010-06-02
CASIO COMPUTER CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0010] exist Figure 12 In the shown conventional antenna 61 for receiving standard time radio waves, the structure in which the laminated core 62 forms a closed loop prevents the antenna 61 from being miniaturized
Method used
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Embodiment Construction
[0031] [One embodiment of antenna]
[0032] First, refer to Figures 1A to 8 One embodiment of the antenna according to the present invention is explained. The antenna of this embodiment is used to receive Japan Standard Time radio waves.
[0033] like Figure 1A and Figure 1B As shown, the antenna includes an elongated laminated core 10, a core housing 15 having electrical insulation and configured to accommodate the laminated core 10, and a coil wound at both ends of the laminated core 10 passing through the core housing 15. Coil 20 on the part between the parts.
[0034] In particular, the laminated core 10 includes: a first group 13 comprising a plurality of amorphous soft magnetic alloy sheets 11 laminated to each other; and a second group 14 comprising a plurality of mutually laminated Amorphous soft magnetic alloy flakes 12 . The first and second groups 13 and 14 are stacked on top of each other to form the elongated laminated core 10 . In this embodiment, the e...
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Abstract
The invention relates to an antenna, which comprises an outstretched laminated core (10), which is formed through that amorphous soft magnetic alloy thin slices (11, 12) are mutually pressed, two endportions of each thin slice are equipped with flanges (11b, 12b), a coil winding portion (11a, 12a) is arranged between the two end portions, the antenna further comprises a conductive core shell (15), in which the core is placed, and a coil (20) is wound on the core which is arranged between the two end portions of the core which passes through the shell. The core is equipped with a first group and a second group (13, 14), and each group comprises laminated thin slices and is mutually stacked to form the core. The shell comprises a projection (15a), when the core is placed in the shell, and the projection pushes the end portion of the second group of the thin slice to separate from the two end portions of the first group of the thin slice along the laminated direction of the thin slice ofthe core.
Description
technical field [0001] The present invention relates to an antenna, a watch with the antenna and a method of manufacturing the antenna. Background technique [0002] In recent years, a timepiece that receives radio waves containing standard time information (hereinafter referred to as standard time radio waves) and automatically adjusts time has been used, and such timepieces are called radio-controlled timepieces. In Japan, two standard time radio wave transmitters transmit long-wave standard time radio waves of 40 kHz and 60 kHz. [0003] Therefore, radio-controlled timepieces designed for use in Japan contain an antenna to receive standard time radio waves of 40 kHz and / or 60 kHz. [0004] Similar to usual timepieces, there are two types of radio-controlled timepieces, one of the clock type including table clocks and wall clocks, and the other of the watch type including wrist watches and pocket watches. [0005] A watch-type radio-controlled timepiece, which is much sm...
Claims
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IPC IPC(8): G04C11/02H01Q7/08G04G21/04G04C9/02H01Q1/24G04G7/02H01Q7/06H01F17/04G04G5/00H01Q1/27H01F41/02G04R60/10
CPCH01Q1/273H01Q7/08G04R60/12G04G21/04G04R60/10H01Q1/24
Inventor 南成敏佐野贵司木村壮荒木博和三田正裕小谷忠石本隆幸
Owner CASIO COMPUTER CO LTD