JP6656340B2 - Antenna device - Google Patents
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- JP6656340B2 JP6656340B2 JP2018206794A JP2018206794A JP6656340B2 JP 6656340 B2 JP6656340 B2 JP 6656340B2 JP 2018206794 A JP2018206794 A JP 2018206794A JP 2018206794 A JP2018206794 A JP 2018206794A JP 6656340 B2 JP6656340 B2 JP 6656340B2
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- 239000002184 metal Substances 0.000 claims description 80
- 239000011347 resin Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 30
- 239000000758 substrate Substances 0.000 claims description 18
- 210000000078 claw Anatomy 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 description 7
- 238000004512 die casting Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
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Description
本発明は、車両パネルに取り付けられる車載用アンテナ装置等に適したアンテナ装置に関する。 The present invention relates to an antenna device suitable for a vehicle-mounted antenna device or the like attached to a vehicle panel.
車載用ラジオアンテナ装置は、一般的に図１０のように、電波を受信するアンテナ素子を含むエレメント１、内部を風雨から保護するケース２、エレメント１で受信した高周波信号を増幅するアンプ基板３、信号を伝達するケーブル（図示せず）、各部品を保持するベース４、車両パネル１０へベース４を固定するナット６とを有している。アンプ基板３はベース４上に保持され、ケース２の底面がベース４で閉じられるとともにアンプ基板３はケース２内に収納される。ケース２の上部にエレメント１は取り付けられる（例えばケース２側が雌ネジ、エレメント１側が雄ネジで螺着される）。 Generally, as shown in FIG. 10, an on-vehicle radio antenna device includes an element 1 including an antenna element for receiving a radio wave, a case 2 for protecting the inside from wind and rain, an amplifier board 3 for amplifying a high-frequency signal received by the element 1, It has a cable (not shown) for transmitting a signal, a base 4 for holding each component, and a nut 6 for fixing the base 4 to a vehicle panel 10. The amplifier substrate 3 is held on the base 4, the bottom surface of the case 2 is closed by the base 4, and the amplifier substrate 3 is stored in the case 2. The element 1 is attached to the upper part of the case 2 (for example, the case 2 is screwed with a female screw and the element 1 is screwed with a male screw).
車載用ラジオアンテナ装置のベース４は、各部品を保持するとともに、ナット６を介して車両パネル１０への固定を行い、また車両パネル１０とのアース接続を行う等の機能がある。そのため、従来は作製形状の自由度が大きく、強度が高く、電気的導通の行なえる材料による作製方法である点で金属製のダイカスト品が主流となっている。 The base 4 of the in-vehicle radio antenna device has a function of holding the components, fixing the components to the vehicle panel 10 via the nut 6, and connecting the ground to the vehicle panel 10. For this reason, conventionally, metal die-cast products have been mainly used in that they are conventionally manufactured using a material having a high degree of freedom in a manufacturing shape, a high strength, and a material capable of conducting electricity.
一般的に金属の比重は大きいため、金属製ダイカスト品のベースは重いという問題があった。また、材料として融点が高いので金型設備も高価となり、製品価格も高くなっていた。また、電気を通す為、受信高周波信号の信号伝送用又は電源用ケーブルの芯線との間で短絡事故等を引き起こす危険性があった。一方、軽量化及びコストダウンを狙い、ベースの一部を樹脂にする構造はあったが、依然として金属部分はダイカスト品を使用しており、コストの優位性が無い状況であった。 Generally, since the specific gravity of metal is large, there is a problem that the base of a metal die-cast product is heavy. Also, since the melting point is high as a material, the mold equipment is expensive, and the product price is high. Further, since electricity is passed, there is a danger of causing a short circuit accident or the like between the core wire of a signal transmission or power supply cable of a received high-frequency signal. On the other hand, there was a structure in which a part of the base was made of resin for the purpose of weight reduction and cost reduction, but the metal part was still a die-cast product, and there was no cost advantage.
金属ダイカストのベースを示すものとして、下記特許文献１がある。 Patent Literature 1 below shows a metal die-casting base.
上記のように、従来の車載アンテナ装置用のベースは一般的に金属ダイカストで作製されていたが、軽量化及びコストの面では樹脂に優位性がある。しかし、樹脂は絶縁体であるため、アンプ基板と車両パネルとのアース接続を行う必要がある車載アンテナ装置のベースには不適当であった。 As described above, the base for the conventional in-vehicle antenna device is generally made of metal die casting, but the resin is superior in terms of weight reduction and cost. However, since the resin is an insulator, the resin is not suitable for a base of an in-vehicle antenna device that needs to be grounded between an amplifier substrate and a vehicle panel.
本発明はこうした状況を認識してなされたものであり、その目的は、アース接続を行う部品の周囲に樹脂を設けたベース構造とすることで、部品の共通化に適し、かつ安価で軽量なアンテナ装置を提供することにある。 The present invention has been made in view of such a situation, and an object of the present invention is to provide a base structure in which a resin is provided around a component to be grounded, which is suitable for common use of components, and is inexpensive and lightweight. An object of the present invention is to provide an antenna device.
本発明のある態様は、アンテナ装置である。このアンテナ装置は、ケースと、前記ケース内に収納され、上面側にアース電極を有し、アンテナ素子からの信号を受ける基板と、前記ケースの底面を塞ぐ配置であり、前記基板を保持するベースと、を備え、
前記ベースは、前記アース電極と電気的に接続された金属部と樹脂部とを有し、
前記ベースの縁部には、補強リブが形成されており、
前記基板と、前記ベースとは、対向し、
前記アース電極は、前記金属部と、ボルト部と前記ボルト部の周囲に設けられた爪とを有して車両パネルへ前記ベースを固定する金属取付金具を介して、前記車両パネルと電気的に接続されることを特徴とする。
One embodiment of the present invention is an antenna device. The antenna device includes a case, a substrate housed in the case, having a ground electrode on an upper surface side, receiving a signal from an antenna element, and a base for closing a bottom surface of the case, and a base holding the substrate. And
The base has a metal part and a resin part electrically connected to the ground electrode ,
A reinforcing rib is formed on an edge of the base ,
The substrate and the base face each other,
Before Symbol ground electrode, said metal section, through the metal mounting bracket for securing the base to the vehicle panel and a claw provided around the bolt section and the bolt portion, the vehicle panel and the electrical Characterized by being connected to
前記態様において、前記基板は、前記ベースの前端部よりも後方に位置し、
前記アンテナ素子の前端は、前記前端部よりも後方で且つ上方に位置するとよい。
In the aspect, the substrate is located behind a front end of the base ,
The front end of the antenna element may be located behind and above the front end.
なお、以上の構成要素の任意の組合せ、本発明の表現を方法やシステムなどの間で変換したものもまた、本発明の態様として有効である。 Note that any combination of the above-described components, and any conversion of the expression of the present invention between a method, a system, and the like, are also effective as aspects of the present invention.
本発明に係るアンテナ装置によれば、アース接続を行う部品の周囲に樹脂を設けたベース構造とすることで、大部分を金属に比べて軽量な樹脂で構成できる。このため、軽量化を図るとともにダイカスト成型に比べて安価に作製可能である。また、前記アース接続を行う部品は共通に用いて、樹脂成型品の形状を変化させることで、多様な状況に対応でき、部品の共通化に適する。 ADVANTAGE OF THE INVENTION According to the antenna apparatus which concerns on this invention, since it has the base structure which provided resin around the part which performs earth connection, most can be comprised by resin lightweight compared with metal. For this reason, it is possible to reduce the weight and to manufacture it inexpensively as compared with die casting. Also, by using the same component for earth connection and changing the shape of the resin molded product, it is possible to cope with various situations and is suitable for common use of components.
以下、図面を参照しながら本発明の好適な実施の形態を詳述する。なお、各図面に示される同一または同等の構成要素、部材、処理等には同一の符号を付し、適宜重複した説明は省略する。また、実施の形態は発明を限定するものではなく例示であり、実施の形態に記述されるすべての特徴やその組み合わせは必ずしも発明の本質的なものであるとは限らない。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The same or equivalent components, members, processes, and the like shown in the drawings are denoted by the same reference numerals, and the repeated description will be omitted as appropriate. In addition, the embodiments do not limit the invention, but are exemplifications, and all features and combinations described in the embodiments are not necessarily essential to the invention.
図１乃至図６は本発明に係るアンテナ装置の実施の形態であって、車載用ラジオアンテナ装置の例を示す。車載用ラジオアンテナ装置は、図１のように、電波を受信するアンテナ素子（ロッドアンテナ、ヘリカルコイル等）を含むエレメント１、内部を風雨から保護する樹脂製ケース２、エレメント１で受信した高周波信号を増幅するアンプ基板３、アンプ基板３で増幅した信号の伝達用及びアンプ基板３への電源供給用のケーブル５（図２等参照）、各部品を保持するベース２０、車両ルーフ等の金属板状の車両パネル１０へベース２０を固定する爪付きの金属取付金具５０とを有している。ケース２の上部にエレメント１は取り付けられる（例えばケース２側が雌ネジ、エレメント１側が雄ネジで螺着される）。 1 to 6 show an embodiment of an antenna device according to the present invention, and show an example of an on-vehicle radio antenna device. As shown in FIG. 1, an on-vehicle radio antenna device includes an element 1 including an antenna element (a rod antenna, a helical coil, etc.) for receiving a radio wave, a resin case 2 for protecting the inside from wind and rain, and a high-frequency signal received by the element 1. Board 3 for amplifying the signal, cable 5 for transmitting the signal amplified by the amplifier board 3 and supplying power to the amplifier board 3 (see FIG. 2 and the like), a base 20 for holding each component, and a metal plate such as a vehicle roof. And a metal mounting bracket 50 with claws for fixing the base 20 to the vehicle panel 10 having the shape of a circle. The element 1 is attached to the upper part of the case 2 (for example, the case 2 is screwed with a female screw and the element 1 is screwed with a male screw).
前記ベース２０は、図２及び図４のように金属締結部品としての金属ナット４０を溶接等で固着した板金部品２１の周囲を樹脂で一体成型（いわゆるインサート成型）したものであり、従って板金部品２１とこれと一体の樹脂部３０とから構成される。ベース２０はケース２の底面を塞ぐ（閉じる）配置であって、樹脂部３０の周縁部の取付穴３１を利用してビス等でケース２に固定される。 As shown in FIGS. 2 and 4, the base 20 is formed by integrally molding (so-called insert molding) the periphery of a sheet metal part 21 to which a metal nut 40 as a metal fastening part is fixed by welding or the like. 21 and a resin part 30 integrated therewith. The base 20 is arranged so as to close (close) the bottom surface of the case 2, and is fixed to the case 2 with screws or the like using a mounting hole 31 in a peripheral portion of the resin portion 30.
図４に示すように、板金部品２１は、底面部２２と、これに対して対角位置で垂直に立ち上がった一対（複数）の腕部２３とを有する。また、底面部２２には円形の段差面２４がしぼり加工で形成されるとともに、底面部２２の縁部が折り曲げられて補強リブ２５が形成されている。段差面２４と補強リブ２５は板金部品２１の肉厚が薄い場合の曲げ強度改善のために設けられている。底面部２２（段差面２４）には軽量化のために抜き穴２２ａが形成されている。図２から判るように、金属ナット４０は中心部に凸部４１がある段付きのナット（パイロット付きナット）であり、底面部２２の中央部には凸部４１が嵌合するナット位置決め穴２６が形成されている。板金部品２１と金属ナット４０相互の電気的接続を確実にするために、金属ナット４０は溶接やはんだ付けで板金部品２１に固着されている。 As shown in FIG. 4, the sheet metal component 21 has a bottom surface portion 22 and a pair (plurality) of arm portions 23 that stand upright at diagonal positions with respect to the bottom surface portion 22. In addition, a circular step surface 24 is formed on the bottom surface portion 22 by squeezing, and an edge of the bottom surface portion 22 is bent to form a reinforcing rib 25. The step surface 24 and the reinforcing rib 25 are provided for improving the bending strength when the thickness of the sheet metal part 21 is small. A hole 22a is formed in the bottom portion 22 (the step surface 24) for weight reduction. As can be seen from FIG. 2, the metal nut 40 is a stepped nut (a nut with a pilot) having a convex portion 41 at the center, and a nut positioning hole 26 into which the convex portion 41 fits at the center of the bottom portion 22. Are formed. In order to secure the electrical connection between the sheet metal part 21 and the metal nut 40, the metal nut 40 is fixed to the sheet metal part 21 by welding or soldering.
樹脂部３０は略長円形の輪郭を成し、その下面側中央部に車両パネル１０（例えば車両ルーフ）の方形取付穴１１に嵌合する形状の嵌合凸部３２が形成されている。嵌合凸部３２には金属ナット４０の雌ネジ穴４２が露出する穴部３３が形成されている。また、樹脂部３０の上面側にも金属ナット４０の雌ネジ穴４２が露出する穴部３４が形成されている。前記穴部３３には樹脂部３０の成型後に金属チューブ５５が圧入されている。金属チューブ５５の上端は金属ナット４０の凸部４１に当たっている。嵌合凸部３２には、これを貫通するようにケーブル引出穴３９が形成され、アンプ基板３に接続されたケーブル５がケーブル引出穴３９を通して外部に引き出される。 The resin portion 30 has a substantially elliptical contour, and a fitting projection 32 having a shape to fit into the rectangular mounting hole 11 of the vehicle panel 10 (for example, a vehicle roof) is formed at the center on the lower surface side. The fitting projection 32 has a hole 33 through which the female screw hole 42 of the metal nut 40 is exposed. Also, a hole portion 34 is formed on the upper surface side of the resin portion 30 so that the female screw hole 42 of the metal nut 40 is exposed. The metal tube 55 is press-fitted into the hole 33 after the resin portion 30 is molded. The upper end of the metal tube 55 is in contact with the projection 41 of the metal nut 40. A cable outlet hole 39 is formed in the fitting convex portion 32 so as to penetrate the fitting convex portion 32, and the cable 5 connected to the amplifier board 3 is pulled out to the outside through the cable outlet hole 39.
図２及び図３に示すように、板金部品２１から立ち上がった複数の腕部２３は樹脂部３０の上面から突出しており、腕部２３の上端部は切込み２３ａを入れることで折曲げ可能な折曲げ部２３ｂとなっている。また、樹脂部３０の上面にはアンプ基板３の下面を所定高さで支えるボス３５が複数個形成されている。そして、図５のようにアンプ基板３をベース２０上、つまり一対の対角位置にある腕部２３間に載置し、その後腕部２３の折曲げ部２３ｂを折り曲げてアンプ基板３のアース電極３ａにはんだ付け、導電性接着剤等で電気的に接続する。図５のようにベース２０上にアンプ基板３を搭載し、腕部２３で保持した状態にてケース２をベース２０上に被せ、アンプ基板３をケース２内に収納する。 As shown in FIGS. 2 and 3, the plurality of arms 23 rising from the sheet metal part 21 protrude from the upper surface of the resin part 30, and the upper end of the arm 23 can be bent by making a cut 23 a. It is a bent portion 23b. Further, a plurality of bosses 35 supporting the lower surface of the amplifier board 3 at a predetermined height are formed on the upper surface of the resin portion 30. Then, as shown in FIG. 5, the amplifier substrate 3 is placed on the base 20, that is, between the arm portions 23 at a pair of diagonal positions, and then the bent portion 23b of the arm portion 23 is bent to form the ground electrode of the amplifier substrate 3. 3a, and electrically connected by a conductive adhesive or the like. As shown in FIG. 5, the amplifier board 3 is mounted on the base 20, and the case 2 is put on the base 20 while being held by the arm 23, and the amplifier board 3 is stored in the case 2.
図６は、ベース２０を車両パネル１０に載置し、ベース側のナット４０に金属取付金具５０のボルト部５１を螺合して締め付けた状態を示す。但し、ケース２及びアンプ基板３の図示は省略してある。図６に示すように、車両ルーフ等の車両パネル１０への取り付けは、その方形取付穴１１にベース２０下面の嵌合凸部３２を嵌合し、爪付きの金属取付金具５０のボルト部５１を金属ナット４０の雌ネジ穴４２に螺合し、かつ爪５２に一体に形成された内側へのＬ字状折曲げ腕部５３を樹脂部３０下面の係止溝３７に係合させた状態で締め付けることによって行う。これにより、金属取付金具５０のボルト部５１の周囲に設けられた爪５２が車両パネル１０の面に食い込み金属取付金具５０が車両パネル１０に電気的に接続される。従って、アンプ基板３のアース電極３ａは板金部品２１の腕部２３、底面部２２、金属ナット４０、金属取付金具５０のボルト部５１、爪５２の経路で車両パネル１０に電気的に接続され、アース電極３ａの車両パネル１０へのアース接続が達成される。なお、金属チューブ５５がボルト部５１の周囲にあるため、金属取付金具５０の締め付け限度は、爪５２の基部上面が金属チューブ５５に当接する位置までに規制される。また、板金部品２１は爪５２の先端の外径よりも大きく設定されている。従って、爪５２の先端は板金部品２１の下面領域（図６の矢印Ｅで示す範囲）内側に位置しているので、ボルト部５１による締め付けによって発生する爪先端の押圧力を板金部品２１で受け止めることができる。これにより、ベース２０の樹脂部３０に大きな応力は加わらず、確実な締め付け固定が可能である。 FIG. 6 shows a state in which the base 20 is placed on the vehicle panel 10, and the bolt portion 51 of the metal mounting bracket 50 is screwed and fastened to the nut 40 on the base side. However, illustration of the case 2 and the amplifier board 3 is omitted. As shown in FIG. 6, when the vehicle roof 10 is mounted on the vehicle panel 10, the fitting protrusion 32 on the lower surface of the base 20 is fitted into the rectangular mounting hole 11, and the bolt portion 51 of the metal mounting bracket 50 with a claw is provided. Is screwed into the female screw hole 42 of the metal nut 40, and the inward L-shaped bent arm 53 formed integrally with the claw 52 is engaged with the locking groove 37 on the lower surface of the resin part 30. This is done by tightening. Thereby, the claw 52 provided around the bolt portion 51 of the metal mounting bracket 50 cuts into the surface of the vehicle panel 10, and the metal mounting bracket 50 is electrically connected to the vehicle panel 10. Therefore, the ground electrode 3a of the amplifier board 3 is electrically connected to the vehicle panel 10 through the path of the arm 23, the bottom 22, the metal nut 40, the bolt 51 of the metal fitting 50, and the claw 52 of the sheet metal part 21, The earth connection of the earth electrode 3a to the vehicle panel 10 is achieved. Since the metal tube 55 is located around the bolt portion 51, the tightening limit of the metal fitting 50 is restricted to a position where the upper surface of the base of the claw 52 contacts the metal tube 55. The sheet metal part 21 is set to be larger than the outer diameter of the tip of the claw 52. Accordingly, since the tip of the claw 52 is located inside the lower surface area (range indicated by the arrow E in FIG. 6) of the sheet metal component 21, the pressing force of the claw tip generated by the fastening by the bolt 51 is received by the sheet metal component 21. be able to. Thereby, a large stress is not applied to the resin portion 30 of the base 20, and secure tightening and fixing can be performed.
本実施の形態によれば、下記の効果を奏することができる。 According to the present embodiment, the following effects can be obtained.
(1) ベース２０の材質の大部分を比重の大きい金属から比重の小さい樹脂にすることにより、従来の金属ダイカスト製ベースに比べて軽量化を図ることができる。 (1) By making most of the material of the base 20 from a metal having a large specific gravity to a resin having a small specific gravity, it is possible to reduce the weight as compared with a conventional metal die-cast base.
(2) 金属ダイカストの場合、材料として融点が高い金属を用いるので金型設備が高価であるのに対し、樹脂成型は設備が簡単で材料自体も安い。従って、板金部品２１の周囲に樹脂を設けたベース２０の方が安価に製造可能である。 (2) In the case of metal die-casting, metal equipment having a high melting point is used, so that mold equipment is expensive. On the other hand, resin molding is simple and the material itself is cheap. Therefore, the base 20 having the resin provided around the sheet metal part 21 can be manufactured at lower cost.
(3) 従来の金属ダイカスト製ベースであると、導体であるため、ラジオの信号線やアンプ基板３の電源線とベースとが接触した場合、短絡事故が発生する危険性があったが、樹脂部３０で板金部品２１を覆う本例のベース２０では、ベース２０の表面で電気を通さないため、ラジオの信号線及びアンプ基板３の電源線との短絡を防止でき、安全性の高い製品となる。 (3) Conventional metal die-casting bases are conductors, so if the radio signal lines or power supply lines of the amplifier board 3 come into contact with the base, there is a danger of a short circuit accident. In the base 20 of the present example, in which the sheet metal part 21 is covered with the portion 30, since electricity is not conducted on the surface of the base 20, it is possible to prevent a short circuit between the radio signal line and the power supply line of the amplifier board 3, and a highly safe product Become.
(4) 板金部品２１の材料にはブリキ等のはんだ性に優れている材料を選定することができ、部品点数の削減による軽量化やコストダウンを狙い、アンプ基板３の保持にネジ等を使用せずはんだ接続による保持が可能である。 (4) A material having excellent solderability such as tinplate can be selected as a material for the sheet metal part 21, and a screw or the like is used to hold the amplifier board 3 with the aim of reducing weight and cost by reducing the number of parts. It can be held by solder connection without using.
図７は板金部品を共通使用して、車両パネル側の取付穴形状に合わせてベース２０の凸部形状を変更した場合を説明するものであり、同図（Ａ）の板金部品２１は図１乃至図５で説明した実施の形態と共通のものであり、同図（Ｂ）のように板金部品２１と一体に形成される樹脂部３０の嵌合凸部３２Ａを略正四角筒状に形成することで、同図（Ｃ）の略正方形の取付穴１１Ａに適合するベース構造を実現できる。また、共通の板金部品２１を用い、図７（Ｄ）のように樹脂部３０の嵌合凸部３２Ｂを平断面が略長方形の略四角筒状に形成することで、同図（Ｅ）の略長方形の取付穴１１Ｂに適合するベース構造を実現できる。 FIG. 7 illustrates a case where the shape of the convex portion of the base 20 is changed according to the shape of the mounting hole on the vehicle panel side by using the sheet metal parts in common, and the sheet metal part 21 of FIG. 5 to FIG. 5, the fitting protrusion 32A of the resin portion 30 formed integrally with the sheet metal part 21 is formed in a substantially square cylindrical shape as shown in FIG. By doing so, it is possible to realize a base structure that fits into the substantially square mounting hole 11A in FIG. Also, as shown in FIG. 7D, the fitting projection 32B of the resin portion 30 is formed in a substantially rectangular cylindrical shape having a substantially rectangular cross section by using the common sheet metal part 21. A base structure suitable for the substantially rectangular mounting hole 11B can be realized.
図７で説明したように、アンプ基板３の保持及びアース接続を行う板金部品２１を共通部品とし、その周囲の樹脂成型形状を変更することで車両パネルの多様な形状、大きさの取付穴に対応できる構造を実現できる。 As described with reference to FIG. 7, the sheet metal part 21 for holding and grounding the amplifier board 3 is used as a common part, and by changing the resin molding shape around the same, mounting holes of various shapes and sizes of the vehicle panel can be formed. A structure that can be handled can be realized.
図８は板金部品を共通使用して、ケースの底面形状に合わせてベース２０の輪郭形状を変更した場合を説明するものであり、同図（Ａ）の板金部品２１は図１乃至図５で説明した実施の形態と共通のものであり、ケース底面形状が小さい場合、同図（Ｂ）のように輪郭形状の小さい樹脂部３０Ａを板金部品２１と一体に成型すれば良く、ケース底面形状が大きい場合、同図（Ｃ）のように輪郭形状の大きい樹脂部３０Ｂを板金部品２１と一体に成型すれば良い。 FIG. 8 illustrates a case where the contour shape of the base 20 is changed according to the bottom shape of the case by using a common sheet metal part, and the sheet metal part 21 of FIG. When the case bottom shape is small, the resin portion 30A having a small outline shape may be molded integrally with the sheet metal part 21 as shown in FIG. If it is large, the resin portion 30B having a large outline shape may be formed integrally with the sheet metal part 21 as shown in FIG.
図８で説明したように、アンプ基板３の保持及びアース接続を行う板金部品２１を共通部品とし、その周囲の樹脂成型形状を変更することでアンテナ装置のケースサイズの違いに対応できる構造を実現できる。 As described with reference to FIG. 8, a structure that can cope with a difference in case size of the antenna device is realized by using the sheet metal part 21 for holding the amplifier substrate 3 and ground connection as a common part and changing the resin molding shape around the same. it can.
図９は本発明の他の実施の形態であって、ベース２０の部分のみを示す。この場合、板金部品２１の底面部２２の中央部にはナット位置決め穴の代わりにボルト取付穴２５Ａが形成され、ボルト取付穴２５Ａに挿通された金属締結部品としての金属ボルト４５の頭部が溶接やはんだ付けで板金部品２１に固着されている。車両パネルへの取り付けは、図１０の従来例の場合と同様にナット６（例えば金属製爪付きナット）を用いることができる。 FIG. 9 shows another embodiment of the present invention, in which only the base 20 is shown. In this case, instead of a nut positioning hole, a bolt mounting hole 25A is formed at the center of the bottom portion 22 of the sheet metal component 21, and the head of a metal bolt 45 as a metal fastening component inserted into the bolt mounting hole 25A is welded. Or by soldering. The nut 6 (for example, a nut with a metal claw) can be used for attachment to the vehicle panel as in the case of the conventional example in FIG.
図９の実施の形態の場合も金属締結部品が変更された点を除けば、図１乃至図５に示した実施の形態と同様の作用、効果が得られる。 In the embodiment of FIG. 9 as well, the same operations and effects as those of the embodiment shown in FIGS. 1 to 5 can be obtained except that the metal fastening parts are changed.
以上、実施の形態を例に本発明を説明したが、実施の形態の各構成要素や各処理プロセスには請求項に記載の範囲で種々の変形が可能であることは当業者に理解されるところである。以下、変形例について触れる。 As described above, the present invention has been described by taking the embodiment as an example. However, it is understood by those skilled in the art that various modifications can be made to each component and each processing process of the embodiment within the scope described in the claims. By the way. Hereinafter, modified examples will be described.
板金部品２１に対する金属ナット４０の固定及び電気的な接続を、機械的なかしめで行っても良い。また、板金部品２１にバーリング加工を施した後、直接雌ネジ加工することも可能である。 The fixing and the electrical connection of the metal nut 40 to the sheet metal part 21 may be performed by mechanical caulking. Further, after the sheet metal part 21 is subjected to burring processing, it is also possible to directly perform internal thread processing.
板金部品２１の腕部２３は、少なくとも１個あれば、アンプ基板３のアース電極３ａとの電気的接続が可能である。但し、アンプ基板３の機械的な保持のためには複数個設けられることが好ましい。 If there is at least one arm 23 of the sheet metal part 21, the arm 23 can be electrically connected to the ground electrode 3 a of the amplifier board 3. However, it is preferable that a plurality of amplifier substrates 3 are provided for mechanical holding.
アンテナ装置の種類によっては、基板上にアンプが搭載されない場合があるが、本発明は、アンプが搭載されない基板をケース内に有するアンテナ装置にも適用可能であることは自明である。 Depending on the type of the antenna device, an amplifier may not be mounted on the substrate in some cases. However, it is obvious that the present invention is also applicable to an antenna device having a substrate in which no amplifier is mounted in a case.
１ エレメント
２ ケース
３ アンプ基板
３ａ アース電極
４，２０ ベース
６，４０ ナット
１０ 車両パネル
１１，１１Ａ，１１Ｂ 取付穴
２１ 板金部品
２２ 底面部
２３ 腕部
２３ａ 切込み
２３ｂ 折曲げ部
２５ 補強リブ
２６ ナット位置決め穴
３０，３０Ａ，３０Ｂ 樹脂部
３２，３２Ａ，３２Ｂ 嵌合凸部
４１ 凸部
５０ 金属取付金具
５１ ボルト部
５２ 爪
DESCRIPTION OF SYMBOLS 1 Element 2 Case 3 Amplifier board 3a Ground electrode 4, 20 Base 6, 40 Nut 10 Vehicle panel 11, 11A, 11B Mounting hole 21 Sheet metal part 22 Bottom part 23 Arm part 23a Cut 23b Bent part 25 Reinforcement rib 26 Nut positioning hole 30, 30A, 30B Resin parts 32, 32A, 32B Fitting convex part 41 Convex part 50 Metal mounting bracket 51 Bolt part 52 Claw
Claims (2)
前記ケース内に収納され、上面側にアース電極を有し、アンテナ素子からの信号を受ける基板と、
前記ケースの底面を塞ぐ配置であり、前記基板を保持するベースと、を備え、
前記ベースは、前記アース電極と電気的に接続された金属部と樹脂部とを有し、
前記ベースの縁部には、補強リブが形成されており、
前記基板と、前記ベースとは、対向し、
前記アース電極は、前記金属部と、ボルト部と前記ボルト部の周囲に設けられた爪とを有して車両パネルへ前記ベースを固定する金属取付金具を介して、前記車両パネルと電気的に接続される、アンテナ装置。 Case and
A substrate housed in the case, having a ground electrode on the upper surface side, and receiving a signal from the antenna element,
And a base for holding the substrate, the base closing the bottom surface of the case,
The base has a metal part and a resin part electrically connected to the ground electrode ,
A reinforcing rib is formed on an edge of the base ,
The substrate and the base face each other,
Before Symbol ground electrode, said metal section, through the metal mounting bracket for securing the base to the vehicle panel and a claw provided around the bolt section and the bolt portion, the vehicle panel and the electrical An antenna device connected to the
前記アンテナ素子の前端は、前記前端部よりも後方で且つ上方に位置する、請求項１に記載のアンテナ装置。 The substrate is located behind the front end of the base ,
The antenna device according to claim 1, wherein a front end of the antenna element is located behind and above the front end.
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