EP3570370B1 - Vitre de fenêtre - Google Patents

Vitre de fenêtre Download PDF

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Publication number
EP3570370B1
EP3570370B1 EP18739438.2A EP18739438A EP3570370B1 EP 3570370 B1 EP3570370 B1 EP 3570370B1 EP 18739438 A EP18739438 A EP 18739438A EP 3570370 B1 EP3570370 B1 EP 3570370B1
Authority
EP
European Patent Office
Prior art keywords
antenna
defogger
working example
power supply
window glass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18739438.2A
Other languages
German (de)
English (en)
Other versions
EP3570370A1 (fr
EP3570370A4 (fr
Inventor
Kosuke Tanaka
Tatsumi Tokuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Publication of EP3570370A1 publication Critical patent/EP3570370A1/fr
Publication of EP3570370A4 publication Critical patent/EP3570370A4/fr
Application granted granted Critical
Publication of EP3570370B1 publication Critical patent/EP3570370B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/1271Supports; Mounting means for mounting on windscreens
    • H01Q1/1278Supports; Mounting means for mounting on windscreens in association with heating wires or layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/28Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/16Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole

Definitions

  • the shortening coefficient of wavelength ⁇ of a glass plate also changes depending on factors such as the thickness of the glass plate, being approximately 0.7 in the case where a defogger, an antenna element and the like are formed on a single glass plate, and approximately 0.5 in the case of a laminated glass in which an intermediate film is sandwiched by two glass plates, for example, and more specifically, changes in the following manner, depending on the frequency of the broadcast waves to be received and the thickness of the glass plate.
  • the shortening coefficients of wavelength in the following Table 1 are, however, given as examples, and can also change depending on other conditions.
  • the auxiliary element 5 is connected within a range of 150 mm toward the right side and 150 mm toward the left side, and more preferably within a range of 100 mm toward the right side and toward 100 mm toward the left side, centered on this origin.
  • the vertical elements 41 to 43 are preferably disposed so as to satisfy any of the following equations (1) and (2), where Pmin is the smallest of these four intervals, ⁇ 1 to ⁇ 2 are the wavelength bands of DAB broadcast waves that are received by the DAB antenna 3, and ⁇ is the shortening coefficient of wavelength of the abovementioned glass plate 1.
  • Pmin ⁇ ⁇ ⁇ ⁇ 1 / 2
  • working example 1 generally shows a high reception performance in all frequency ranges compared with comparative examples 1 and 2.
  • a reception performance that is much higher than comparative examples 1 and 2 is shown. Accordingly, it is noted that the reception performance increases when the two antenna elements are both capacitively coupled to the defogger.
  • the average of the reception sensitivities in the DAB frequency range was -5.9 dBd for working example 1, -7.8 dBd for comparative example 1, and -7.8 dBd for comparative example 2.
  • the average of the reception sensitivities in the DAB frequency range was -6.6 dBd for working example 3, -6.1 dBd for working example 4, -5.9 dBd for working example 5, -6.2 dBd for working example 6, -6.5 dBd for working example 7, and -6.8 dBd for working example 8.
  • connection position of the auxiliary element and the lowermost horizontal element was evaluated.
  • the first region of the auxiliary element is connected in the vicinity of the bus bar on the left side, and, as shown in the following Table 3, working examples 12 to 14 in which the connection position of the first region of the auxiliary element was changed were prepared, and the reception performances were calculated.
  • the connection position is shown with the bus bar on the left side as the origin, and with the right side as plus from that position.
  • Table 3 Position from Left Bus Bar Working Example 10 50 mm Working Example 12 100 mm Working Example 13 150 mm Working Example 14 200 mm

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Claims (7)

  1. Vitre de fenêtre comprenant :
    une plaque de verre (1),
    un désembueur (2) formé sur la plaque de verre et présentant une paire de barres omnibus (21a, 21b) et une pluralité de fils chauffants horizontaux reliant la paire de barres omnibus (21a, 21b) ; et
    une antenne (3) formée sur la plaque de verre,
    dans laquelle
    le désembueur (2) présente un premier élément vertical (42) et un élément auxiliaire (5) s'étendant à partir d'un fil chauffant horizontal le plus haut ou le plus bas (221, 222), parmi les fils chauffants horizontaux,
    le premier élément vertical (42) recoupe la pluralité de fils chauffants horizontaux, y compris le fil chauffant horizontal le plus haut ou le plus bas à partir duquel l'élément auxiliaire (5) s'étend,
    l'antenne (3) inclut :
    une première partie d'alimentation électrique (31) ;
    un premier élément d'antenne (33) s'étendant à partir de la première partie d'alimentation électrique ;
    une seconde partie d'alimentation électrique (32) ; et
    un second élément d'antenne (34) s'étendant à partir de la seconde partie d'alimentation électrique (32),
    l'antenne (3) est configurée pour recevoir une onde radio d'une plage de fréquence d'un premier média, en utilisant le premier élément d'antenne (33) et le second élément d'antenne (34),
    le premier élément d'antenne (33) et le second élément d'antenne (34) sont tous deux couplés de manière capacitive au désembueur (2),
    l'élément auxiliaire (5) est relié au fil chauffant horizontal le plus haut ou le plus bas (221, 222) en un point dans une direction horizontale à au plus 150 mm du premier élément vertical (42),
    le premier média est une radiodiffusion numérique, DAB, et
    l'antenne (3) et l'élément auxiliaire (5) sont disposés du même côté par rapport au désembueur (2).
  2. Vitre de fenêtre selon la revendication 1,
    dans laquelle le premier élément d'antenne (33) est couplé de manière capacitive au désembueur en un premier emplacement et le second élément d'antenne (34) est couplé de manière capacitive au désembueur en un second emplacement, et
    le premier emplacement et le second emplacement sont séparés l'un de l'autre d'une distance de 25 mm ou plus.
  3. Vitre de fenêtre selon la revendication 1 ou 2,
    dans laquelle au moins l'un du premier élément d'antenne (33) et du second élément d'antenne (34) est couplé de manière capacitive à l'élément auxiliaire (5).
  4. Vitre de fenêtre selon la revendication 3,
    dans laquelle une distance entre le premier élément vertical (42) et l'élément auxiliaire (5) est de 100 mm ou moins.
  5. Vitre de fenêtre selon la revendication 4,
    dans laquelle le désembueur (2) inclut un second élément vertical (41) disposé sur le côté de la première partie d'alimentation électrique (31) et de la seconde partie d'alimentation électrique (32) par rapport au premier élément vertical et
    recoupant la pluralité des fils chauffants horizontaux (22), et
    L≤α·λ/2 est satisfaite, où L est une distance entre le premier élément vertical (42) et le second élément vertical (41), α est un coefficient de raccourcissement de longueur d'onde de la plaque de verre, et λ est une longueur d'onde plus courte correspondant à une plage de fréquence du premier media.
  6. Vitre de fenêtre selon l'une quelconque des revendications 1 à 5,
    dans laquelle la seconde partie d'alimentation électrique (32) est mise à la terre.
  7. Porte arrière comprenant :
    la vitre de fenêtre selon l'une quelconque des revendications 1 à 6, et
    un élément de recouvrement en résine présentant une partie d'ouverture de fenêtre à laquelle la vitre de fenêtre est fixée, et supportant la vitre de fenêtre.
EP18739438.2A 2017-01-11 2018-01-11 Vitre de fenêtre Active EP3570370B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017002868A JP6868396B2 (ja) 2017-01-11 2017-01-11 窓ガラス
PCT/JP2018/000480 WO2018131647A1 (fr) 2017-01-11 2018-01-11 Vitre de fenêtre

Publications (3)

Publication Number Publication Date
EP3570370A1 EP3570370A1 (fr) 2019-11-20
EP3570370A4 EP3570370A4 (fr) 2020-08-12
EP3570370B1 true EP3570370B1 (fr) 2023-06-07

Family

ID=62839558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18739438.2A Active EP3570370B1 (fr) 2017-01-11 2018-01-11 Vitre de fenêtre

Country Status (4)

Country Link
EP (1) EP3570370B1 (fr)
JP (1) JP6868396B2 (fr)
CN (1) CN110168805A (fr)
WO (1) WO2018131647A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019043453A (ja) * 2017-09-05 2019-03-22 日本板硝子株式会社 リアガラス及びリアガラスを有するバックドア
JP7296540B2 (ja) * 2019-12-27 2023-06-23 Agc株式会社 車両用窓ガラス

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099837U (fr) * 1974-01-14 1975-08-19
JP2000252732A (ja) * 1999-02-25 2000-09-14 Asahi Glass Co Ltd 自動車用ガラスアンテナ
JP5655522B2 (ja) * 2010-11-24 2015-01-21 旭硝子株式会社 車両用アンテナ装置
CN106068578A (zh) * 2014-03-12 2016-11-02 旭硝子株式会社 汽车用玻璃天线
EP3291370A4 (fr) * 2015-04-28 2018-12-05 Nippon Sheet Glass Company, Limited Antenne de verre
EP3300168A4 (fr) * 2015-05-22 2018-12-05 Nippon Sheet Glass Company, Limited Vitre de véhicule et antenne de vitre pour radiodiffusion audionumérique
JP2017005354A (ja) * 2015-06-05 2017-01-05 旭硝子株式会社 車両用ガラスアンテナ及び車両用アンテナを備えた後部窓ガラス

Also Published As

Publication number Publication date
JP6868396B2 (ja) 2021-05-12
EP3570370A1 (fr) 2019-11-20
WO2018131647A1 (fr) 2018-07-19
JP2018113587A (ja) 2018-07-19
EP3570370A4 (fr) 2020-08-12
CN110168805A (zh) 2019-08-23

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