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1. WO2020111132 - LIQUID-LEVEL DETECTION DEVICE

Publication Number WO/2020/111132
Publication Date 04.06.2020
International Application No. PCT/JP2019/046402
International Filing Date 27.11.2019
IPC
G01F 23/296 2006.01
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22by measurement of physical variables, other than linear dimensions, pressure, or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
28by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
296Acoustic waves
CPC
G01F 23/296
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22by measurement of physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
28by measuring the variations of parameters of electric or acoustic waves applied directly to the liquid or fluent solid material
296Acoustic waves
Applicants
  • 株式会社デンソー DENSO CORPORATION [JP]/[JP]
Inventors
  • 赤塚 国臣 AKATSUKA, Kunio
  • 宮川 功 MIYAGAWA, Isao
Agents
  • 名古屋国際特許業務法人 NAGOYA INTERNATIONAL PATENT FIRM
Priority Data
2018-22247828.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LIQUID-LEVEL DETECTION DEVICE
(FR) DISPOSITIF DE DÉTECTION DE NIVEAU DE LIQUIDE
(JA) 液面検出装置
Abstract
(EN)
A liquid-level detection device (100) is provided with an ultrasonic oscillating element (11), a case (15), a metal tube (22), and a connecting member (13). The case forms an accommodating chamber (16) for accommodating the ultrasonic oscillating element. The metal tube forms a propagation route (4) for ultrasonic waves, the propagation route extending from a bottom part (151) of the case. The connecting member is electrically connected to the ultrasonic oscillating element, is attached to the ultrasonic oscillating element, and extends toward a cover part (152) of the case. The metal tube has an extension tube part (222) extending from a portion (221) of the metal tube that forms the propagation route. At least a portion of the connecting member is present inside the extension tube part.
(FR)
Cette invention concerne un dispositif de détection de niveau de liquide (100), comprenant un élément oscillant ultrasonore (11), un boîtier (15), un tube métallique (22) et un élément de connexion (13). Le boîtier forme une chambre de réception (16) pour recevoir l'élément oscillant ultrasonore. Le tube métallique forme un trajet de propagation (4) pour des ondes ultrasonores, le trajet de propagation s'étendant à partir d'une partie inférieure (151) du boîtier. L'élément de connexion est électriquement connecté à l'élément oscillant ultrasonore, est fixé à l'élément oscillant ultrasonore, et s'étend vers une partie couvercle (152) du boîtier. Le tube métallique a une partie tube d'extension (222) s'étendant à partir d'une portion (221) du tube métallique qui forme le trajet de propagation. Au moins une partie de l'élément de connexion est présente à l'intérieur de la partie tube d'extension
(JA)
液面検出装置(100)は、超音波発振素子(11)と、ケース(15)と、金属管(22)と、接続部材(13)と、を備える。ケースは、超音波発振素子を収容する収容室(16)を形成する。金属管は、超音波の伝播経路であってケースの底部(151)から延びる伝播経路(4)を形成する。接続部材は、超音波発振素子と電気的に接続し、超音波発振素子に取り付けられ、ケースの蓋部(152)に向かって延びる。金属管は、金属管における伝播経路を形成する部分(221)から延長された延長管部(222)を有する。接続部材の少なくとも一部が延長管部内に存在する。
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