ANTENNA DEVICE AND SHIELD COVER THEREOF

Information

  • Patent Application
  • 20070176841
  • Publication Number
    20070176841
  • Date Filed
    December 27, 2006
    18 years ago
  • Date Published
    August 02, 2007
    17 years ago
Abstract
A circuit board has a first face and a second face opposite to the first face. An antenna element is mounted on the first face. A shield cover is attached to the second face. The shield cover includes a polygonal base portion, a first wall provided on a first side of the polygonal base portion, a second wall provided on a second side of the polygonal base portion, a third wall provided on a corner defined by the first side and the second side, and disposed between the first wall and the second wall, a first extending portion extended from the first wall so as to overlap with the third wall, and a second extending portion extended from the second wall so as to overlap with the third wall. The shield cover is soldered on the second face.
Description

BRIEF DESCRIPTION OF THE DRAWINGS

The above objects and advantages of the present invention will become more apparent by describing in detail preferred exemplary embodiments thereof with reference to the accompanying drawings, wherein:



FIG. 1(A) is a perspective view showing a related-art shield cover;



FIG. 1(B) is a lower plan view of the related-art shield cover;



FIG. 1(C) is a sectional view taken on center line A-A in FIG. 1(B);



FIG. 1(D) is a plan view of the related-art shield cover;



FIG. 1(E) is a left side view of FIG. 1(D);



FIG. 1(F) is a front view of FIG. 1(B);



FIG. 2(A) is an enlarged view of a portion encircled by circle A in FIG. 1(B);



FIG. 2(B) is an enlarged view of a portion encircled by circle B in FIG. 1(C);



FIG. 2(C) is an enlarged view of a portion encircled by circle C in FIG. 1(E);



FIG. 3(A) is a front view showing an antenna device before the completion of assembling according to an embodiment of the present invention;



FIG. 3(B) is a plan view showing the antenna device after the completion of assembling;



FIG. 3(C) is a front view of FIG. 3(B);



FIG. 4(A) is a perspective view showing the shield cover;



FIG. 4(B) is a lower face view of the shield cover;



FIG. 4(C) is a section view taken on center line A-A in FIG. 4(B);



FIG. 4(D) is a right side view of the shield cover;



FIG. 4(E) is a rear view of the shield cover;



FIG. 4(F) is a front view of the shield cover;



FIG. 4(G) is a front right side view of the shield cover;



FIG. 4(H) is a rear right side view of the shield cover;



FIG. 4(I) is a plan view of the shield cover;



FIG. 5(A) is an enlarged view of a portion encircled by circle A in FIG. 4(B);



FIG. 5(B) is an enlarged view of a portion encircled by circle B in FIG. 4(C);



FIG. 5(C) is an enlarged view of a portion encircled by circle C in FIG. 4(D);



FIG. 5(D) is an enlarged view of a portion encircled by circle D in FIG. 4(G);



FIG. 5(E) is an enlarged view of a portion encircled by circle E in FIG. 4(H);



FIG. 6 is an developed view of the shield cover;



FIG. 7 is a side view showing a state in which the shield cover is attached to a circuit board by soldering; and



FIG. 8 is a plan view showing a state in which the shield cover is attached to a circuit board by soldering.


Claims
  • 1. An antenna device comprising: a circuit board having a first face and a second face opposite to the first face;an antenna element mounted on the first face; anda shield cover attached to the second face and including: a polygonal base portion;a first wall provided on a first side of the polygonal base portion;a second wall provided on a second side of the polygonal base portion;a third wall provided on a corner defined by the first side and the second side, and disposed between the first wall and the second wall;a first extending portion extended from the first wall so as to overlap with the third wall; anda second extending portion extended from the second wall so as to overlap with the third wall; andthe shield cover is soldered on the second face.
  • 2. The antenna device as set forth in claim 1, wherein: the first extending portion is formed on a part of an edge of the first wall while separating from the polygonal base portion; andthe second extending portion is formed on a part of an edge of the second wall while separating from the polygonal base portion.
  • 3. The antenna device as set forth in claim 1, wherein: the shield cover is monolithically formed by a metal sheet.
  • 4. A shield cover adapted to shield a circuit which is mounted on a circuit board, the shield cover comprising: a polygonal base portion;a first wall provided on a first side of the polygonal base portion and extending in a first direction;a second wall provided on a second side of the polygonal base portion and extending in a second direction;a third wall provided on a corner defined by the first side and the second side, and disposed between the first wall and the second wall;a first extending portion extended from the first wall so as to overlap with the third wall; anda second extending portion extended from the second wall so as to overlap with the third wall.
  • 5. The shield cover as set forth in claim 4, wherein: the first extending portion is formed on a part of an edge of the first wall while separating from the polygonal base portion; andthe second extending portion is formed on a part of an edge of the second wall while separating from the polygonal base portion.
  • 6. The shield cover as set forth in claim 4, wherein: the shield cover is monolithically formed by a metal sheet.
  • 7. The shield cover as set forth in claim 4, wherein: the shield cover is soldered on the circuit board.
Priority Claims (1)
Number Date Country Kind
P2006-023874 Jan 2006 JP national