WO2021139858A1 - Débitmètre à ultrasons - Google Patents

Débitmètre à ultrasons Download PDF

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Publication number
WO2021139858A1
WO2021139858A1 PCT/DK2020/050001 DK2020050001W WO2021139858A1 WO 2021139858 A1 WO2021139858 A1 WO 2021139858A1 DK 2020050001 W DK2020050001 W DK 2020050001W WO 2021139858 A1 WO2021139858 A1 WO 2021139858A1
Authority
WO
WIPO (PCT)
Prior art keywords
arrangement
longitudinal axis
connectors
insulating support
electrically insulating
Prior art date
Application number
PCT/DK2020/050001
Other languages
English (en)
Inventor
James Edward PRICE
Original Assignee
Apator Miitors Aps
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 Apator Miitors Aps filed Critical Apator Miitors Aps
Priority to PCT/DK2020/050001 priority Critical patent/WO2021139858A1/fr
Publication of WO2021139858A1 publication Critical patent/WO2021139858A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/18—Supports or connecting means for meters

Definitions

  • the invention relates to an ultrasonic flow meter for measuring the flow of a fluid, such as water, district heating or gas.
  • ultrasonic flow meters exist in the prior art.
  • ultrasonic flow meters should be cost-effective and easy to assemble.
  • a housing holds a printed circuit board and ultrasonic transducers of the flow meter, and a connection arrangement therebetween.
  • EP 2888561 A1 to Apator Miitors shows another example of an ultrasonic flow meter with a connection arrangement.
  • an ultrasonic flow meter which comprises a housing, a first ultrasonic transducer, a second ultrasonic transducer, an electronic control arrangement for operating said ultrasonic flow meter, and a connection arrangement being arranged between said electronic control arrangement and said ultrasonic transducers, said connection arrangement comprising an electrically insulating support arrangement, and a set of connectors for electrically connecting said electronic control arrangement with said first and second ultrasonic transducers, said electrically insulating support arrangement mechanically fixating said set of connectors and maintaining electrical separation between said set of connectors, wherein said electrically insulating support arrangement has a first part, a second part, and a third part with a first and a second end, the first part being pivotably connected to the first end of the third part, and the second part being pivotably connected to the second end of the third part.
  • the ultrasonic flow meter has a connection arrangement for connecting the electronic control arrangement and the ultrasonic transducers, wherein the connection arrangement comprises an electrically insulating support arrangement for holding and separating a set of connectors, which provides electrical contact between the electronic control arrangement and each of the transducers.
  • the connectors are electrically conductive connectors.
  • connection between the connection arrangement and the electronic control arrangement is substantially free of soldering.
  • the connectors are preferably elastic or comprises one or more elastic parts, e.g. two opposing, elastic end parts.
  • the connection arrangement and the electronic control arrangement remains mechanically separated units, even after assembly of the flow meter, the elastic connectors maintaining the electrical connection to the electronic control arrangement without being fixated to said electronic control arrangement by e.g. adhesives, soldering etc., but by means of an elastic force, such as e.g. a spring force for connectors comprising one or more springs.
  • an elastic force such as e.g. a spring force for connectors comprising one or more springs.
  • One advantage of this embodiment may be that a more stable connection, especially over very long time periods, such as many years, may be obtained. While mechanical forces may affect and wear adhesive or soldering based connections, a connection based on an elastic force may remain relatively unaffected by mechanical forces induced, e.g. by movement of the connection arrangement etc.
  • the electrically insulating support arrangement of the connection arrangement of the ultrasonic flow meter of the invention is three-parted: It has a first part, a second part, and a third part, the first and second parts being connected to a first end and a second end, respectively, of the third part, the third part thus making up a middle part between the first and second parts.
  • connections between the third part, and the first and second parts, respectively are pivot connections, such that the first part is pivotably connected to the first end of the third part, and the second part is pivotably connected to the second end of the third part. Accordingly, the first part may be rotated relative to the third part about a connection point or a connection line between the first part and the first end of the third part. Likewise, the second part may be rotated relative to the third part about a connection point or a connection line between the second part and the second end of the third part.
  • the electrically insulating support arrangement fixates the set of connectors.
  • each of the first, second and third parts of the electrically insulating support arrangement fixate the part the set of connectors arranged with the part.
  • the first, second and third parts of the electrically insulating support arrangement may fixate a first, second, and third connector, respectively.
  • each of the connectors of the set of connectors are electrically separated and insulated from each other.
  • first part is rotated relative to the third part
  • the part of the set of connectors arranged with the first part is rotated therewith.
  • first connector is fixated with the first part of the electrically insulating support arrangement
  • second connector is fixated with the second part of the electrically insulating support arrangement
  • the ultrasonic flow meter with the connection arrangement according to the first aspect allows for easy assembly of the connection arrangement per se and of the ultrasonic flow meter.
  • the first part has a first longitudinal axis
  • the second part has a second longitudinal axis
  • the third part has a third longitudinal axis
  • the first longitudinal axis is parallel to the third longitudinal axis
  • the second longitudinal axis is parallel to the third longitudinal axis
  • the first longitudinal axis is angled relative to the third longitudinal axis
  • the second longitudinal axis is angled relative to the third longitudinal axis.
  • the electrically insulating support arrangement may be arranged in two states, a first state and a second state.
  • first state the longitudinal axes of the first part and the third part, and of the second part and the third part, respectively, are parallel.
  • second state the longitudinal axes of the first part and the third part, and of the second part and of the third part, are angled.
  • first and second rotation angle respectively, which optionally may be similar.
  • the above mentioned angled relationship between the longitudinal axes of the first part and the third part and of the second part and of the third part may in an embodiment be obtained by having an angle from 5 to 120 degrees between the longitudinal axes of the first part and the third part and between the longitudinal axes the second part and of the third part, such as an angle from 10 to 110 degrees, such as an angle from 25 to 100 degrees. In one embodiment the angle may be about 90 degrees, such as from 80 to 100 degrees, or from 85 to 95 degrees.
  • the angling of the first and second parts, relative to the third part, allows for easy connection of the connectors to the ultrasonic transducers of the flow meter, such as to transducers arranged in transducer recesses adjacent to a flow channel with the fluid to be measured.
  • the first longitudinal axis is perpendicular to the third longitudinal axis
  • the second longitudinal axis is perpendicular to the third longitudinal axis
  • each of the first and second parts are rotated 90 degrees clockwise or anticlockwise around their connection points or connection lines, preferably so that the first part is rotated 90 degrees clockwise and the second part is rotated 90 degrees anticlockwise relative to the third part, or the first part is rotated 90 degrees anticlockwise and the second part is rotated 90 degrees clockwise relative to the third part.
  • the perpendicular arrangement of the first and second parts, respectively, relatively to the third part allows for easy connection to the ultrasonic transducers of the ultrasonic flow meter, such as ultrasonic transducers arranged in transducer recesses.
  • both parts face the same direction such as facing two transducers in two transducer recesses arranged adjacent to a flow channel.
  • the first part, the second part, and the third part of the electrically insulating support arrangement are provided as a single, integrated support unit.
  • first part, the second part, and the third part of the electrically insulating support arrangement are provided as three, individual support parts.
  • the electrically insulating support arrangement As an alternative to providing the electrically insulating support arrangement as a single support unit, it may be provided as three, individual support parts, corresponding to the first part, the second part and the third part. Providing the electrically insulating support arrangement as individual support parts allows for ease of manufacture of these parts.
  • the set of connectors for electrically connecting said electronic control arrangement with said first and second ultrasonic transducers is provided as a single, integrated connector unit.
  • the set of connectors for electrically connecting said electronic control arrangement with said first and second ultrasonic transducers is provided as three, individual connectors.
  • the set of connectors may be provided as three, individual connectors. Providing the set of connectors as individual connectors allows for ease of manufacture of these parts.
  • the three, individual connectors relate to the first part, the second part, and the third part, respectively, of the electrically insulating support arrangement, such that a first connector of the three, individual connectors is arranged with the first part, a second connector of the three, individual connectors is arranged with the second part, and a third connector of the three, individual connectors is arranged with the third part.
  • the ultrasonic flow meter is a consumption meter.
  • a method of assembling an ultrasonic flow meter comprising a meter housing, a first ultrasonic transducer, a second ultrasonic transducer, an electronic control arrangement for operating said ultrasonic flow meter, and a connection arrangement being arranged between said electronic control arrangement and said ultrasonic transducers, said connection arrangement comprising an electrically insulating support arrangement, and a set of connectors for electrically connecting said electronic control arrangement with said first and second ultrasonic transducers, said electrically insulating support arrangement mechanically fixating said set of connectors and maintaining electrical separation between said set of connectors, wherein said electrically insulating support arrangement has a first part, a second part, and a third part with a first and a second end, the first part being pivotably connected to the first end of the third part, and the second part being pivotably connected to the second end of the third part, wherein said method comprising the steps of inserting the first and second ultrasonic transducers into the
  • the set of elastic connectors is arranged for electrically connecting the electronic control arrangement, such as a printed circuit board, and the first and second ultrasonic transducers.
  • these items i.e. the transducers, the connection arrangement and the electronic control arrangement, are arranged in the meter housing, in order to establish, first, electrical contact between the transducers and the connectors of the connection arrangement, and, second, electrical contact between the connectors of the connection arrangement and the electronics control arrangement, and, thus, to establish electrical contact from the electronics control arrangement, through the connection arrangement, to the first and second transducers.
  • the first part has a first longitudinal axis
  • the second part has a second longitudinal axis
  • the third part has a third longitudinal axis
  • the first longitudinal axis is parallel to the third longitudinal axis
  • the second longitudinal axis is parallel to the third longitudinal axis
  • the first longitudinal axis is angled relative to the third longitudinal axis
  • the second longitudinal axis is angled relative to the third longitudinal axis.
  • the method further comprises a step of assembling the connection arrangement, comprising the steps of fixating the set of connectors in the electrically insulating support arrangement in the first state of the connection arrangement, and arranging the first part of the electrically insulating support arrangement relative to the third part of the electrically insulating support arrangement, and arranging the second part of the electrically insulating support arrangement relative to the third part of the electrically insulating support arrangement, so as to arrange the connection arrangement in its second state.
  • the set of connectors is arranged with the electrically insulating support arrangement. This is preferably done with the connection arrangement in its first state, i.e. with the longitudinal axes of the first part, the second part, and the third part being parallel. Thus, in this first state, none of the first part and the second part are rotated, i.e. the first part and second part are parallel.
  • each of the connectors are separated or at least prepared for being separated, so as to separately connect to, in terms of transducer connection, a first electrode of the first transducer, a first electrode of the second transducer, a second electrode of the first transducer, and a second electrode of the second transducer.
  • the first transducer and the second transducer may have a common second electrode, such as a common second electrode printed onto the housing wall.
  • the electrically insulating support arrangement is arranged in its second state, i.e. the first and second parts are rotated relative to the third part, preferably to be arranged so that the longitudinal axes of the third axis is perpendicular to the longitudinal axis of each of the first and second parts.
  • the connection arrangement is arranged so that the first and second part of the electrically insulation support arrangement, and, with the first and second connectors, the connection arrangement, are arranged for facing the transducers of the flow meter.
  • the first part, the second part, and the third part of the electrically insulating support arrangement are provided as a single, integrated support unit.
  • the first part, the second part, and the third part of the electrically insulating support arrangement are provided as three, individual support parts.
  • the set of connectors for electrically connecting said electronic control arrangement with said first and second ultrasonic transducers is provided as a single, integrated connector unit.
  • the method further comprises a step of separating the set of connectors, comprising the step of separating the set of connectors into three, individual connectors, such as by cutting the set of connectors along cutting lines.
  • Separating a single, integrated connector unit into three, individual connectors allows for provision of individual connectors for connection to each of the first electrode of the first transducer, the first electrode of the second transducer and a common second electrode of first and second transducers.
  • the set of connectors for electrically connecting said electronic control arrangement with said first and second ultrasonic transducers is provided as three, individual connectors.
  • Fig. 1 A and IB show an ultrasonic flow meter according to the present invention
  • Figs. 2a, 2b, and 2c show three states of a connection arrangement of the ultrasonic flow meter of the present invention
  • Fig. 3a and 3b show two embodiments of the set of connectors according to invention.
  • FIG. la an ultrasonic flow meter 100 according to an embodiment of the invention is illustrated.
  • the ultrasonic flow meter 100 is shown in an exploded view showing components thereof.
  • the ultrasonic flow meter 100 is connected to a flow tube 110 (not shown) for the media to be measured, and has a meter housing 120 with a first and a second ultrasonic transducers 130, 131, a connection arrangement 140, and an electronic control arrangement 170.
  • the electronic control arrangement 170 is a battery 171 for powering the ultrasonic flow meter 100.
  • the first and second transducers 130, 131 are arranged in the meter housing 120 to pass ultrasound into the flow tube 110 (not shown), designed such that an ultrasonic signal emitted by the first transducer 130 will be reflected in the flow tube 110 (not shown) and guided to the second transducer 131, or vice versa from the second transducer 131 to said first transducer 130.
  • connection arrangement 140 is shown in more details in fig. lb.
  • the connection arrangement 140 comprises an electrically insulating support arrangement 150 for fixation of a set of connectors 160.
  • connection arrangement 140 is arranged in the meter housing 120 such that the set of connectors 160 engage with the ultrasonic transducers 130, 131. Also, the set of connectors 160 engage with electronic control arrangement 170, thereby establishing electrical connection from the electrical control arrangement 170 to the first and second ultrasonic transducers 130, 131.
  • Fig. 2a, 2b, and 2c show three states of the connection arrangement 140.
  • the connection arrangement 140 is shown in a first state.
  • the electrically insulating support arrangement 150 of the connection arrangement 140 has a first part 151, second part 152, and third part 153, which have corresponding longitudinal axes 151a, 152a, and 153a (shown in fig. 2b and 2c).
  • the first longitudinal axis 151a is parallel to third longitudinal axis 153a
  • the second longitudinal axis 152a is parallel to the third longitudinal axis 153a.
  • the electrically insulating support arrangement 150 is provided as a single, integrated support unit comprising each of the three parts 151, 152, and 153.
  • the electrically insulating support arrangement 150 is provided as three, individual support parts, corresponding to the three parts 151, 152, and 153.
  • the electrically insulating supporting arrangement 150 fixates the set of connectors 160.
  • the set of connectors 160 is provided as three, individual connectors 161, 162, and 163, as illustrated in fig. 3a.
  • Such three, individual connectors 161, 162, and 163 correspond to the first part 151, the second part 152, and the third part 153, respectively, of the electrically insulating support arrangement 150, such that the first connector 161 of the three, individual connectors 161, 162, and 163 is arranged with the first part 151, the second connector 162 of the three, individual connectors 161, 162, and 163 is arranged with the second part 152, and the third connector 163 of the three, individual connectors 161, 162, and 163 is arranged with the third part 153.
  • the set of connectors 160 is provided as a single, integrated connector unit 160, as illustrated in fig. 3b.
  • the set of connectors 160 may subsequently be separated into three parts, corresponding to the first connector 161, the second connector 162, and the third connector 163.
  • the subsequent separation may thus be performed after the set of connectors 160 as a single, integrated connector unit 160 has been fixated to the insulating support arrangement 150, e.g. in a first state as illustrated in fig. 2a.
  • Such separation may be done by e.g. cutting the set of connectors 160 along predefined cutting lines, which in turn may be accessed through openings in the electrically insulating support arrangement 150.
  • each of the connectors 161, 162, and 163 of the set of connectors 160 are electrically separated and insulated from each other in the final connection arrangement 140.
  • the set of connectors 160 is fixated with the electrically insulating support arrangement 150 of the connection arrangement 140 by means of recesses and/or protrusions on the electrically insulating support arrangement 150.
  • the electrically insulating support arrangement 150 is made up of two or more individual support parts, such as three individual support parts, each of these parts have recesses and/protrusions for fixation of the set of connectors 160.
  • the set of connectors 160 is made up of two or more individual connectors, such as three or four individual connectors, each of these connectors are fixated by recesses and/protrusions of the electrically insulation support arrangement 150.
  • a part of the set of connectors 160 may be specifically adapted for fixation with the electrically insulation support arrangement 150, i.e. as a fastening part.
  • the first connector 161 has a fastening part 161c
  • the second connector 162 has a fastening part 162c
  • the third connector 163 has a fastening part 163 c.
  • the fastening parts may e.g. be provided as through hole for being engaged by a locking pin of the corresponding first, second, and third part 151, 152, 153 of the electrically insulating support arrangement 150.
  • the fastening parts may be a protrusion and/or a recess for engaging with a recess and/or a protrusion of the electrically insulating support arrangement 150.
  • Protrusions 180 on the electrically insulating support arrangement allow for fixation of the connection arrangement 140 to the housing 120 or components therein.
  • connection arrangement 140 is shown in a second state.
  • the first longitudinal axis 151a is angled relative to the third longitudinal axis 153a
  • the second longitudinal axis 152a is angled relative to the third longitudinal axis 153a to more easily approach the transducers 130, 131.
  • connection arrangement 140 is shown in a third state.
  • the first longitudinal axis 151a is perpendicular to the third longitudinal axis 153a
  • the second longitudinal axis 152a is perpendicular to the third longitudinal axis 153a to even more easily approach the transducers 130, 131.
  • the first connector 161 has a first connector part 161a connecting to the first electrode 130a (not shown) of the first ultrasonic transducer 130 (not shown), and a second connector part 161b connecting to the electronic control arrangement 170 (not shown).
  • the second connector 162 has a first connector part 162a connecting to the first electrode 131a (not shown) of the second ultrasonic transducer 131 (not shown), and a second connector part 162b connecting to the electronic control arrangement 170 (not shown).
  • the third connector 163 has a first connector part 163a connecting to a common second electrode 130b, 131b (not shown) of the first and second ultrasonic transducer 130, 131, and a second connector part 163b connecting to the electronic control arrangement 170.
  • the second electrodes 130b, 131b (not shown) of the first and second ultrasonic transducers 130, 131 may be individual second electrodes 130b, 131b (not shown), and the third connector 163 may be divided into two separate connectors, so as to make up a total of four connectors.
  • Ultrasonic flow meter 110 Flow tube 120.
  • Meter housing 130 First ultrasonic transducer
  • Second ultrasonic transducer 140 Connection arrangement

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention concerne un débitmètre à ultrasons (100), le débitmètre comprenant un boîtier (120), un premier transducteur à ultrasons (130), un second transducteur à ultrasons (131), un agencement de commande électronique (170) pour faire fonctionner ledit débitmètre à ultrasons (100), et un agencement de connexion (140) étant agencé entre ledit agencement de commande électronique (170) et lesdits transducteurs à ultrasons (130, 131), ledit agencement de connexion (140) comprenant un agencement de support électriquement isolant (150), et un ensemble de connecteurs (160) pour connecter électriquement ledit agencement de commande électronique (170) avec lesdits premier et second transducteurs à ultrasons (130, 131), ledit agencement de support électriquement isolant (150) fixant mécaniquement ledit ensemble de connecteurs (160) et maintenant une séparation électrique entre ledit ensemble de connecteurs (160), ledit agencement de support électriquement isolant (150) présentant une première partie (151), une deuxième partie (152) et une troisième partie (153) avec une première et une deuxième extrémité, la première partie (151) étant connectée de manière pivotante à la première extrémité de la troisième partie (153), et la deuxième partie (152) étant connectée de manière pivotante à la deuxième extrémité de la troisième partie (153). L'invention concerne également un procédé d'assemblage d'un débitmètre à ultrasons.
PCT/DK2020/050001 2020-01-07 2020-01-07 Débitmètre à ultrasons WO2021139858A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/DK2020/050001 WO2021139858A1 (fr) 2020-01-07 2020-01-07 Débitmètre à ultrasons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DK2020/050001 WO2021139858A1 (fr) 2020-01-07 2020-01-07 Débitmètre à ultrasons

Publications (1)

Publication Number Publication Date
WO2021139858A1 true WO2021139858A1 (fr) 2021-07-15

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036658A1 (fr) * 1980-03-25 1981-09-30 Fuji Electric Co. Ltd. Dispositif à ultrasons pour mesurer le débit d'un fluide dans un conduit
KR20020058785A (ko) * 2000-12-30 2002-07-12 이계안 주유량 확인장치
JP2007316770A (ja) * 2006-05-23 2007-12-06 Keyence Corp センサ装置、センサシステム及び異種物理量を検出可能なセンサ装置の接続方法
WO2011141167A2 (fr) 2010-05-12 2011-11-17 Hydrometer Gmbh Dispositif transducteur à ultrasons et débit-mètre à ultrasons
JP2013145155A (ja) * 2012-01-13 2013-07-25 Atsuden:Kk 超音波流量測定装置
EP2888561A1 (fr) 2012-08-22 2015-07-01 Miitors ApS Débitmètre à ultrasons comprenant un agencement de connexion
DE102016208292A1 (de) * 2015-05-14 2016-11-17 Keyence Corporation Ultraschall-Flussschalter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036658A1 (fr) * 1980-03-25 1981-09-30 Fuji Electric Co. Ltd. Dispositif à ultrasons pour mesurer le débit d'un fluide dans un conduit
KR20020058785A (ko) * 2000-12-30 2002-07-12 이계안 주유량 확인장치
JP2007316770A (ja) * 2006-05-23 2007-12-06 Keyence Corp センサ装置、センサシステム及び異種物理量を検出可能なセンサ装置の接続方法
WO2011141167A2 (fr) 2010-05-12 2011-11-17 Hydrometer Gmbh Dispositif transducteur à ultrasons et débit-mètre à ultrasons
JP2013145155A (ja) * 2012-01-13 2013-07-25 Atsuden:Kk 超音波流量測定装置
EP2888561A1 (fr) 2012-08-22 2015-07-01 Miitors ApS Débitmètre à ultrasons comprenant un agencement de connexion
DE102016208292A1 (de) * 2015-05-14 2016-11-17 Keyence Corporation Ultraschall-Flussschalter

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