CN108808218B - Antenna device - Google Patents
Antenna device Download PDFInfo
- Publication number
- CN108808218B CN108808218B CN201710296084.1A CN201710296084A CN108808218B CN 108808218 B CN108808218 B CN 108808218B CN 201710296084 A CN201710296084 A CN 201710296084A CN 108808218 B CN108808218 B CN 108808218B
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- Prior art keywords
- antenna element
- antenna
- power supply
- antenna device
- support member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
- H01Q1/3291—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted in or on other locations inside the vehicle or vehicle body
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
Abstract
The antenna device of the invention improves the workability of the mounting operation of the antenna element and the connection operation of the power supply line. An antenna device (100) is provided with: a base part (101) arranged along the body of the motor vehicle; an antenna element (130) formed of a conductor plate; and a support member (110) for supporting the antenna element (130) by being spaced apart from the base member (101), wherein the antenna element (130) has a feeding portion and a fixing portion for fixing the antenna element (130) to the support member at one side edge portion of the vehicle body.
Description
Technical Field
The present invention relates to an antenna device mounted on an automobile or the like and receiving radio waves.
Background
As an antenna mounted on an automobile or the like, a low-profile antenna device in which an antenna housing is formed in a fin shape (shark fin shape) has been proposed, in consideration of a design of an entire vehicle after the antenna device is mounted, in which the height of the antenna housing is set lower than that of a rod antenna (rod antenna) and an antenna element is housed in the antenna housing to prevent the antenna element from being exposed to the outside.
Among such antenna devices, there are known antenna devices as follows: an antenna element of an antenna for receiving a radio wave of a relatively low frequency such as AM/FM radio broadcasting is formed of, for example, a metal plate having a peak shape in cross section extending substantially along an inner surface of the shark fin-shaped antenna case, and the antenna element is attached to the inner surface side of the antenna case by a screw disposed near a top of the peak shape (see, for example, patent document 1). The power supply to such an antenna is performed by connecting a power feed line to the distal end portion of the antenna element, for example.
Further, there is also known an antenna device as follows: the antenna element is formed of a metal plate having a peak shape in cross section, and has a hanging portion hanging down from the top of the peak shape, the hanging portion being fitted into a groove formed in an upper portion of a jig (holder) provided in an antenna case in a vehicle front-rear direction (see, for example, patent document 2). The power supply to such an antenna is performed by connecting a power supply line to a terminal which is suspended downward from a peak-shaped top portion in the same manner as the suspended portion.
Patent document 1: japanese laid-open patent publication No. 2013-229813
Patent document 2: japanese laid-open patent publication No. 2012-204996
Disclosure of Invention
Technical problems to be solved by the invention
However, in the structure in which the antenna element having a peak shape in cross section is attached to the antenna case by screws near the top portion thereof or attached to a jig by a hanging portion hanging down from the top portion as described above, there is a problem in that it is difficult to improve workability of the attachment work and it is difficult to reliably fix the entire antenna element. Further, there is a problem that it is difficult to improve workability of connecting the feed line to the tip end portion of the antenna element attached to the antenna case or connecting the feed line to a terminal hanging down from the top portion.
The present invention has been made in view of the above problems, and an object of the present invention is to provide: the workability of the mounting work of the antenna element and the connection work of the power supply line can be easily improved.
Technical solution for solving technical problem
In order to achieve the above object, an antenna device according to the present invention includes:
a base member disposed along an automotive body;
an antenna element formed of a conductor plate; and
a supporting member for supporting the antenna element by being spaced from the base member,
the antenna device is characterized in that:
the antenna element has a feeding portion and a fixing portion for fixing the antenna element to the support member, at one edge portion of the vehicle body.
This facilitates the mounting operation of the antenna element and the connection operation of the power supply line, and thus can easily improve the workability. Further, by arranging the fixing portion and the feeding portion in the vicinity, the influence of vibration and displacement on the feeding portion can be easily suppressed to a small extent, and the durability and reliability of the antenna device can be easily improved.
Effects of the invention
The invention can easily improve the installation operation of the antenna element and the connection operation of the power supply line.
Drawings
Fig. 1 is a perspective view showing the structure of an antenna device 100 according to the first embodiment.
Fig. 2 is an exploded perspective view showing the structure of the antenna device 100 of the first embodiment.
Fig. 3 is a longitudinal sectional view showing the structure of the main portions of the support member 110 and the antenna element holding member 120 of the first embodiment.
Fig. 4 is a sectional view taken along line IV-IV of fig. 3.
Fig. 5 is a perspective view showing the structure of an antenna device 200 of the second embodiment.
Fig. 6 is an exploded perspective view showing the structure of an antenna device 200 of the second embodiment.
Fig. 7 is a sectional view taken along line VII-VII of fig. 5.
Fig. 8 is a partial longitudinal sectional view showing the vicinity of the front end of the support member 210 of the second embodiment.
-description of symbols-
100-an antenna device; 101-a base part; 102-a sealing member; 103-a cover; 104. 105-a circuit substrate; 110-a support member; 111-a base part; 111 a-engaging part; 111 b-a drop; 112-a side wall; 113-a sidewall anterior junction; 114-lateral wall rear junction; 115-holding member engaging part; 116-a coil holding portion; 117-screws; 120-an antenna element holding member; 121-a standing part; 121 a-a guide groove; 122-width extension; 123-front locking part; 123a, 124 a-recess; 124-rear locking part; 125-a recess; 130-an antenna element; 131-a vertical setting part; 132-width extension; 132 a-a fold-back; 133-bending part; 134-a tab; 134 a-a cut-out portion; 151-coil; 151 a-lead; 200-an antenna arrangement; 210-a support member; 211-forefoot portion; 211 a-forefoot mounting portion; 212-rear foot portion; 212 a-hind foot mount; 213-a standing part; 213a, 213 b-recess; 214-an antenna element receiving portion; 214a, 215 a-extensions; 214b, 215 b-guide; 214c, 215 c-convex; 215-an antenna element receiving portion; 216-a coil holding portion; 217-coil holding part; 218-a cover portion; 219-screw; 230-an antenna element; 231-an upper surface portion; 232-side surface section; 233. 234-a latch; 235-a fixed part; 235a, 236 a-recess; 235b, 236 b-holes; 235c, 236 c-cut-out; 236-a fixed part; 251-a coil; 252-a coil; 252 a-lead; 253-connecting means; 253 a-projection.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following embodiments, the same reference numerals are given to the components having the same functions as those of the other embodiments, and the description thereof will be omitted.
(first embodiment)
(brief Structure of antenna device 100)
As shown in fig. 1 and 2, an antenna device 100 according to a first embodiment includes a base member 101 provided along an automobile body, a sealing member 102 provided so as to surround the base member 101, and a cover member 103 covering the base member 101 and the sealing member 102. The antenna device 100 is mounted on a portion such as a roof of a vehicle, with the direction indicated by arrow a in fig. 1 being the front of the vehicle and the direction indicated by arrow B being the side of the vehicle.
The antenna element holding member 120 is attached to the base member 101 via the support member 110, and the antenna element 130 is held by the antenna element holding member 120, wherein the antenna element 130 functions as an antenna for receiving AM broadcast waves and FM broadcast waves, for example. The antenna element 130 is connected to a radio tuner (radio tuner) via a coil 151 and a coaxial cable (not shown), for example. Next, a more detailed structure of each part will be described.
(detailed construction of antenna device 100)
The base member 101 is provided with: circuit boards 104 and 105 on which circuits for processing received signals are formed; and a support member 110.
As shown in fig. 3, the support member 110 has a base portion 111 disposed on the upper surface of the base member 101, and a pair of side walls 112, which are left and right side walls erected on the base portion 111. The pair of side walls 112 are connected together at front upper positions by a side wall front connecting portion 113, and the pair of side walls 112 are connected together at rear upper positions by a side wall rear connecting portion 114. Further, a cylindrical coil holding portion 116 is provided upright on the support member 110, and the coil 151 is fitted and fixed in the coil holding portion 116.
The base portion 111 is provided with a locking portion 111a and a hanging portion 111b formed downward. The locking portion 111a and the hanging portion 111b are inserted into a hole, not shown, formed in the base member 101, and the support member 110 is fixed to the base member 101 by a screw 117.
A holding member locking portion 115 is formed in the side wall rear connecting portion 114, the holding member locking portion 115 is provided to extend forward and slightly upward, and the antenna element holding member 120 is locked by the holding member locking portion 115 as described below.
The antenna element holding member 120 includes an upright portion 121 and an extended width portion 122 extending downward from a lower portion of the upright portion 121 in the width direction of the vehicle body. A front locking portion 123 and a rear locking portion 124 are provided on the lower surface of the expanded width portion 122 so as to protrude forward in a hook shape from below the lower surface, and recesses 123a and 124a open forward are formed between the front locking portion 123 and the rear locking portion 124 and the lower surface of the expanded width portion 122. Further, a recess 125 recessed upward is formed between the front locking portion 123 and the rear locking portion 124 on the lower surface of the expanded width portion 122. The antenna element holding member 120 is fixed to the support member 110 by fitting the side wall front coupling portion 113 of the support member 110 into the recess 123a, fitting the side wall rear coupling portion 114 of the support member 110 into the recess 124a, and fitting the tip of the holding member locking portion 115 of the support member 110 into the recess 125.
The antenna element 130 is formed of a conductive material such as a metal plate, and the antenna element 130 has an upright portion 131 and a width extension portion 132, the upright portion 131 extending along the outer surface of the upright portion 121 of the antenna element holding member 120, and the width extension portion 132 extending along the outer surface of the width extension portion 122. As shown in fig. 4, folded portions 132a folded back inward are formed on both left and right side edges of the antenna element 130. The folded portion 132a sandwiches the side edge portion of the expanded width portion 122 of the antenna element holding member 120, whereby the antenna element 130 is fixed to the antenna element holding member 120. Further, the antenna element holding member 120 is formed with a guide groove 121a along the vicinity of the boundary between the standing portion 121 and the extended width portion 122, while the antenna element 130 is formed with a bent portion 133 that is cut into a slit (sl it) shape and bent inward in the vicinity of the boundary between the standing portion 131 and the extended width portion 132, and the bent portion 133 is fitted into the guide groove 121a of the antenna element holding member 120, whereby the antenna element 130 is more reliably fixed to the antenna element holding member 120.
A protruding piece 134 (feeding portion) forming a notch 134a opened forward is provided near the center portion in the front-rear direction of the folded portion 132a on one side of the antenna element 130. The lead wire protruding laterally of the coil 151, that is, the lead wire 151a, which is an intersection of the power supply lines and extends in the following direction, is fitted into the notch 134 a: this direction intersects with a direction for fixing the antenna element 130 and the antenna element holding member 120 together on the support member 110 to be moved. That is, the antenna element 130 and the antenna element holding member 120 are connected to the lead 151a simultaneously by moving the antenna element 130 and the antenna element holding member 120 from the rear to the front of the vehicle in order to attach the antenna element 130 and the antenna element holding member 120 to the support member 110. Note that: the connecting portions are further reliably connected by soldering or the like.
As described above, since the antenna element 130 has the fixing portion for fixing the antenna element 130 to the support member 110 and the power feeding portion at the edge portion of the antenna element 130 on the side of the vehicle body, the mounting work of the antenna element 130 and the connection work of the power feeding line can be easily performed, and the workability can be easily improved. Further, by disposing the fixing portion and the feeding portion in the vicinity, the influence of vibration and displacement on the feeding portion can be suppressed to a small extent, and the durability and reliability of the antenna device 100 can be easily improved.
(second embodiment)
(brief Structure of antenna device 200)
As in the antenna device 100 of the first embodiment, as shown in fig. 5 and 6, the antenna device 200 of the second embodiment includes a base member 101 provided along the automobile body, a seal member 102 provided so as to surround the periphery of the base member 101, and a cover member 103 covering the base member 101 and the seal member 102.
The base member 101 is provided with a support member 210, and the support member 210 is provided with an antenna element 230. For example, the antenna element 230 is connected to a tuner via a coil 251 and a coaxial cable not shown, or the antenna element 230 is connected to the tuner via a coil 252 and a coaxial cable not shown. In further detail, for example, the coil 251 is connected to a digital television tuner, and the coil 252 is connected to a radio tuner. Next, a more detailed structure of each part will be described.
(detailed construction of antenna device 200)
The base member 101 is provided with: circuit boards 104 and 105 on which circuits for processing received signals are formed; and a support member 210.
The support member 210 includes a front leg portion 211, a rear leg portion 212, and an upright portion 213 supported by the front leg portion 211 and the rear leg portion 212. A front leg mounting portion 211a protruding laterally is provided at a lower end portion of the front leg portion 211. Similarly, a rear leg attachment portion 212a protruding laterally and rearward is provided at a lower end portion of the rear leg portion 212. The support member 210 is attached to the base member 101 by a screw 219 inserted through the front leg attachment portion 211a and the rear leg attachment portion 212 a.
Antenna element receiving portions 214 and 215 protruding sideward are formed near the lower portion of the front end and the lower portion of the rear end of the upright portion 213 in the support member 210. As shown in fig. 7, the antenna element receiving portion 215 includes a protruding portion 215a that protrudes further to the side and a guide portion 215b that extends upward from the front end portion of the protruding portion 215a, and holds a fixing portion 236 formed at the lower edge portion of the antenna element 230. Similarly, the antenna element receiving portion 214 has a protruding portion 214a and a guide portion 214b, thereby holding the fixing portion 235 of the antenna element 230.
As shown in fig. 8, recesses 213a, 213b are formed in the upper portion of the standing portion 213 of the support member 210, and locking portions 233, 234 of the antenna element 230, which will be described later, are locked in the recesses 213a, 213 b.
A coil holding portion 216 is provided in the support member 210 in the vicinity of the front leg portion 211, so that the coil 251 is held. Further, a coil holding portion 217 is provided near the front of the rear leg portion 212, so that the coil 252 is held and covered by the cover portion 218. Hereinafter, the connection between these coils 251, 252 and the antenna element 230 will be explained.
The antenna element 230 has an upper surface 231 and side surfaces 232 obliquely hanging from both side portions of the upper surface 231 in a direction to open outward. Fixing portions 235, 236 are formed at a lower edge portion of the side surface portion 232, that is, at one edge portion of the vehicle. The fixing portions 235 sandwich the antenna element receiving portion 214 from both sides and the fixing portions 236 sandwich the antenna element receiving portion 215 from both sides, and the protruding portions 214c and 215c formed on the antenna element receiving portions 214 and 215 are fitted into the holes 235b and 236b of the fixing portions 235 and 236, whereby the antenna element 230 is fixed to the support member 210. Further, the fixing portion 235 is inserted between the antenna element receiving portion 214 and the guide portion 214b of the support member 210 and the fixing portion 236 is inserted between the antenna element receiving portion 215 and the guide portion 215b of the support member 210, and the protruding portion 214a is fitted into a recessed portion 235a formed in a lower portion of the fixing portion 235 and the protruding portion 215a is fitted into a recessed portion 236a formed in a lower portion of the fixing portion 236.
The fixing portions 235, 236 of the antenna element 230 are also formed with cutout portions 235c, 236c in the insertion direction of the antenna element 230, i.e., the vertical direction. The protruding portion 253a of the connecting member 253 is fitted into the cutout portion 235c, and the lead wire 252a of the coil 252 is fitted into the cutout portion 236c, wherein the connecting member 253 extends in a direction intersecting the insertion direction and serves as an intersection of the power supply lines, the lead wire of the coil 251 is connected to the connecting member 253, and the lead wire 252a of the coil 252 extends in a direction intersecting the insertion direction and serves as an intersection of the power supply lines. Thus, similarly to the first embodiment, the antenna element 230 is moved from the top to the bottom in order to attach the antenna element 230 to the support member 210, and thereby the connection of the antenna element 230 to the feeder line of the feeding unit is performed simultaneously. In order to improve the reliability of electrical conduction and mechanical connection, for example, the above-described connection portion may be subjected to soldering.
In the case of the configuration as described above, since the fixing portion for fixing the antenna element 230 to the support member 210 and the power supply portion are provided at the edge portion of the antenna element 230 on the side of the vehicle body, the mounting work of the antenna element 230 and the connection work of the power supply line can be easily performed, and the workability can be easily improved. Further, the influence of vibration and displacement on the feeding portion can be easily suppressed to be small, and durability and reliability of the antenna device 200 can be easily improved.
(others)
In the above example, the coil 151 is connected to the antenna element 130 and the coils 251 and 252 are connected to the antenna element 230, but the present invention is not limited to this, and similar effects can be obtained even when a capacitor or the like is connected depending on the characteristics of the formed circuit or the like.
In the examples shown in the first and second embodiments, the antenna elements 130 and 230 each have a shape in which a substantially central portion is located at a position higher than both edge portions, but the present invention is not limited to this, and when a flat-plate-shaped antenna element is used, the fixing portion and the feeding portion are provided at one edge portion, so that an effect of easily improving the workability of assembly and connection can be obtained.
Claims (7)
1. An antenna device, comprising:
a base member disposed along an automotive body;
an antenna element formed of a conductor plate; and
a supporting member for supporting the antenna element by being spaced from the base member,
the antenna device is characterized in that:
the antenna element has a power supply portion at least at one side edge portion in the vehicle width direction of the vehicle body, and fixing portions for fixing the antenna element to the support member at both side edge portions in the vehicle width direction of the vehicle body, and
the feeding portion of the antenna element has a cutout portion,
the power supply line connected to the power supply portion has an intersection portion extending in a direction intersecting with a direction of the cutout portion,
the intersection portion of the power supply line is inserted into the cutout portion, thereby connecting the power supply portion and the power supply line.
2. The antenna device of claim 1, wherein:
the power supply unit is disposed at a position where the fixing unit is provided or at a position close to the fixing unit.
3. The antenna device according to claim 1 or 2, characterized in that:
at least one of a coil and a capacitor is connected to the power supply unit.
4. The antenna device according to claim 1 or 2, characterized in that:
the antenna element has a plurality of feeding portions at least at one side edge portion in the vehicle width direction of the vehicle body.
5. The antenna device according to claim 1 or 2, characterized in that:
the antenna element is formed in a flat plate shape or a peak shape in which a distance between the base member and each of the edge portions on both sides in the vehicle width direction of the vehicle body is smaller than a distance between the base member and the central portion.
6. The antenna device according to claim 1 or 2, characterized in that:
the antenna element is configured to: the antenna element is fixed to the support member by the fixing portion by relatively moving the antenna element with respect to the support member.
7. The antenna device according to claim 1 or 2, characterized in that:
the antenna element further includes a center-side fixing portion that is disposed on a center side of the vehicle body with respect to both edges in the vehicle width direction and fixes the antenna element to the support member.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710296084.1A CN108808218B (en) | 2017-04-28 | 2017-04-28 | Antenna device |
| JP2018053848A JP7016743B2 (en) | 2017-04-28 | 2018-03-22 | Antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710296084.1A CN108808218B (en) | 2017-04-28 | 2017-04-28 | Antenna device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108808218A CN108808218A (en) | 2018-11-13 |
| CN108808218B true CN108808218B (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710296084.1A Active CN108808218B (en) | 2017-04-28 | 2017-04-28 | Antenna device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7016743B2 (en) |
| CN (1) | CN108808218B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020235388A1 (en) * | 2019-05-23 | 2020-11-26 | 株式会社ヨコオ | Vehicle-mounted antenna device |
| WO2023162843A1 (en) * | 2022-02-25 | 2023-08-31 | 株式会社ヨコオ | Onboard antenna device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202888388U (en) * | 2012-09-21 | 2013-04-17 | 卜放 | Automobile antenna provided with umbrella-shaped oscillator |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19958481C2 (en) * | 1998-12-04 | 2003-02-20 | Wilhelm Sihn Kg | Antenna for automobiles |
| KR100843150B1 (en) * | 2007-06-05 | 2008-07-02 | 알에프컨트롤스 주식회사 | Shark fin type antenna |
| JP2010021856A (en) * | 2008-07-11 | 2010-01-28 | Nippon Antenna Co Ltd | Antenna device |
| JP5599098B2 (en) | 2010-07-30 | 2014-10-01 | 株式会社ヨコオ | Antenna device |
| JP5654917B2 (en) | 2011-03-24 | 2015-01-14 | 原田工業株式会社 | Antenna device |
| JP5882127B2 (en) * | 2012-04-26 | 2016-03-09 | 株式会社ヨコオ | Automotive antenna |
| JP5986634B2 (en) | 2012-06-26 | 2016-09-06 | 原田工業株式会社 | Low profile antenna device |
| JP6343230B2 (en) | 2013-12-11 | 2018-06-13 | 原田工業株式会社 | Compound antenna device |
| JP6320783B2 (en) | 2014-02-10 | 2018-05-09 | 株式会社ヨコオ | Antenna device |
| JP6437227B2 (en) * | 2014-07-18 | 2018-12-12 | 株式会社ヨコオ | In-vehicle antenna device |
| JP6338482B2 (en) | 2014-07-28 | 2018-06-06 | 株式会社ヨコオ | In-vehicle antenna device |
| US20160064807A1 (en) | 2014-08-29 | 2016-03-03 | Laird Technologies, Inc. | Multiband Vehicular Antenna Assemblies |
| JP2016208291A (en) * | 2015-04-23 | 2016-12-08 | ミツミ電機株式会社 | Antenna device |
| CN205863396U (en) * | 2016-06-08 | 2017-01-04 | 湖北省特力讯电子科技有限公司 | Shark fins antenna assembly |
-
2017
- 2017-04-28 CN CN201710296084.1A patent/CN108808218B/en active Active
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2018
- 2018-03-22 JP JP2018053848A patent/JP7016743B2/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202888388U (en) * | 2012-09-21 | 2013-04-17 | 卜放 | Automobile antenna provided with umbrella-shaped oscillator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108808218A (en) | 2018-11-13 |
| JP2018191274A (en) | 2018-11-29 |
| JP7016743B2 (en) | 2022-02-07 |
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