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1.发明申请公开(公告)号：US20170370752A1
公开(公告)日：2017-12-28
申请号：US15638171
申请日：2017-06-29
发明人： Shinobu TASHIRO , Keiji HANZAWA , Noboru TOKUYASU , Takeshi MORINO , Ryosuke DOI , Akira UENODAN
IPC分类号： G01F1/684 , G01F15/02 , G01F15/00 , G01F1/699 , F02D41/18 , G01F1/698 , G01F1/696 , G01F15/04 , G01F5/00
CPC分类号： G01F1/6842 , F02D41/187 , G01F1/6845 , G01F1/696 , G01F1/6965 , G01F1/698 , G01F1/699 , G01F5/00 , G01F15/006 , G01F15/02 , G01F15/04 , G01F15/043
摘要： Provided is a thermal flow meter to improve the measurement accuracy of a temperature detector provided in a thermal flow meter is a thermal flow meter to improve the measurement accuracy of a temperature detector provided in a thermal flow meter. The thermal flow meter includes a bypass passage through which a measurement target gas 30 flowing through a main passage flows, and a circuit package 400 which includes a measurement circuit for measuring a flow rate of the measurement target gas 30 flowing through the bypass passage and a temperature detecting portion 452 for detecting a temperature of the measurement target gas. The circuit package 400 includes a circuit package body which is molded by a resin to internally envelope the measurement circuit and a protrusion 424 molded by the resin. The temperature detecting portion 452 is provided in the leading end portion of the protrusion 424, and at least the leading end portion of the protrusion protrudes to the outside from a housing 302.
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公开(公告)号：US20170336232A1
公开(公告)日：2017-11-23
申请号：US15659309
申请日：2017-07-25
发明人： Shinobu TASHIRO , Keiji HANZAWA , Noboru TOKUYASU , Takeshi MORINO , Ryosuke DOI , Akira UENODAN
摘要： It is an object of the present invention to improve a measurement accuracy of a thermal flowmeter. A circuit package 401 is such that a measurement surface 430 and a backside of measurement surface 431 of a rear surface thereof are located in a bypass passage, and the bypass passage is configured to allow a measurement target gas 30 to flow upon dividing the measurement target gas 30 into a flow path 386 at a side of the measurement surface 430 of the circuit package and a flow path 387 at a side of the backside of measurement surface 431 of a rear surface of the measurement surface 430, and an inflow-side end surface of the circuit package for dividing the measurement target gas 30 has different shapes at the side of the measurement surface and at the side of the backside of measurement surface. The inflow-side end surface of the circuit package for dividing the measurement target gas 30 is formed with a reference line 700 dividing the measurement target gas 30, and an end surface 701a at the side of the measurement surface with respect to the reference line and an end surface 701b at the side of the backside of measurement surface with respect to the reference line are formed to be asymmetrical.
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公开(公告)号：US20210148743A1
公开(公告)日：2021-05-20
申请号：US16637654
申请日：2018-07-17
发明人： Akira UENODAN , Takayuki YOGO , Tsubasa WATANABE , Takahiro MIKI , Shinobu TASHIRO , Hiroaki HOSHIKA
摘要： Provided is a thermal-type flowmeter which can prevent a reduction of flow rate accuracy and reliability, and an increase of cost of the thermal-type flowmeter compared to the related art, and can add a function of an electrostatic scattering mechanism. The thermal-type flowmeter of the present invention includes a sub-passage into which part of a measurement target gas flowing in a main passage is taken, a flow rate detection element of a flow measurement unit which is disposed in the sub-passage, a circuit package which supports the flow rate detection element, and a substrate to which the circuit package is fixed. The flow rate detection element includes a detection surface to detect a flow rate of the measurement target gas. The detection surface is disposed to face the circuit substrate.
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公开(公告)号：US20190120674A1
公开(公告)日：2019-04-25
申请号：US15765939
申请日：2016-10-05
摘要： The present invention addresses the problem of obtaining a thermal flow meter capable of reducing a pulsation error by preventing a discharge port and a main outlet from being blocked by a vortex during a transient period and reducing a difference between flow speed distributions in normal and pulsation states. This thermal flow meter is provided with a housing disposed in a main passage; and a sub passage provided in the housing. In addition, in the housing, a first outlet and a second outlet of the sub passage are disposed in a downstream end portion of the housing, and a curved surface section is provided adjacent to the first and second outlets.
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公开(公告)号：US20160282162A1
公开(公告)日：2016-09-29
申请号：US14778397
申请日：2014-01-29
CPC分类号： G01F1/6847 , G01F1/6842 , G01F1/692 , G01F1/696 , G01F5/00 , G01P5/12
摘要： In order to provide a thermal flow meter capable of preventing adherence of contaminants to an air flow sensing portion, the thermal flow meter (300) of the invention includes a bypass passage for flowing a measurement target gas (30) received from a main passage (124) and an air flow sensing portion (602) for measuring a flow rate of the measurement target gas (30) by performing heat transfer with the measurement target gas (30) flowing through the bypass passage through a heat transfer surface (437). The air flow sensing portion (602) is provided to be exposed to an exposed surface (402) arranged along a flow direction of the measurement target gas (30) inside the bypass passage is embedded, the mount support surface (402) has a stage (407) formed to surround a periphery of the air flow sensing portion (602), and an inner portion surrounded by the stage protrudes more than an outer portion of the stage.
摘要翻译： 为了提供能够防止污染物与气流感测部分的粘附的热流量计，本发明的热流量计（300）包括用于使从主通道接收的测量目标气体（30）流动的旁路通道（ 124）和用于通过使流过旁通通路的测量对象气体（30）通过传热面（437）进行传热来测量测量对象气体（30）的流量的气流感测部（602）。 空气流动检测部分602被设置为暴露于沿旁路通道内部的测量目标气体30的流动方向布置的暴露表面402，安装支撑表面402具有一个阶段 （407），其形成为围绕所述气流感测部（602）的周边，并且由所述台围绕的内部部分比所述台的外部突出。
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公开(公告)号：US20150355006A1
公开(公告)日：2015-12-10
申请号：US14407775
申请日：2013-05-29
发明人： Shinobu TASHIRO , Keiji HANZAWA , Noboru TOKUYASU , Takeshi MORINO , Ryosuke DOI , Akira UENODAN
CPC分类号： G01F1/6842 , G01F1/684 , G01F1/696 , G01F15/14
摘要： It is an object of the present invention to improve a measurement accuracy of a thermal flow meter. A circuit package 401 is such that a measurement surface 430 and a backside of measurement surface 431 of a rear surface thereof are located in a bypass passage, and the bypass passage is configured to allow a measurement target gas 30 to flow upon dividing the measurement target gas 30 into a flow path 386 at a side of the measurement surface 430 of the circuit package and a flow path 387 at a side of the backside of measurement surface 431 of a rear surface of the measurement surface 430, and an inflow-side end surface of the circuit package for dividing the measurement target gas 30 has different shapes at the side of the measurement surface and at the side of the backside of measurement surface. The inflow-side end surface of the circuit package for dividing the measurement target gas 30 is formed with a reference line 700 dividing the measurement target gas 30, and an end surface 701a at the side of the measurement surface with respect to the reference line and an end surface 701b at the side of the backside of measurement surface with respect to the reference line are formed to be asymmetrical.
摘要翻译： 本发明的目的是提高热流量计的测量精度。 电路封装401使得测量表面430及其后表面的测量表面431的后侧位于旁路通道中，并且旁路通道被构造成允许测量目标气体30在划分测量目标时流动 气体30进入电路封装的测量表面430侧的流路386和测量表面430的后表面的测量表面431的后侧的流动通道387，以及流入侧端 用于划分测量目标气体30的电路封装的表面在测量表面侧和测量表面的背面侧具有不同的形状。 用于划分测量对象气体30的电路封装的流入侧端面由分配测量对象气体30的基准线700和测量表面侧的相对于基准线的端面701a形成， 在测量表面的背面侧相对于基准线的端面701b形成为不对称的。
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公开(公告)号：US20210041275A1
公开(公告)日：2021-02-11
申请号：US17046859
申请日：2019-02-13
发明人： Takayuki YOGO , Binti Haridan FATIN FARHANAH , Akira UENODAN , Noboru TOKUYASU , Takahiro MIKI , Hiroaki HOSHIKA
摘要： An object of the present invention is to provide a compact air flow rate measuring device with improved stain resistance. A physical quantity detecting device of the present invention includes: a semiconductor element having a flow rate detection unit 205; a circuit board 207 supporting the semiconductor element; and a conductive cover 202 fixing the circuit board 207, and the semiconductor element is fixed to the circuit board 207 such that the flow rate detection unit 205 faces the cover 202.
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公开(公告)号：US20200209034A1
公开(公告)日：2020-07-02
申请号：US16633636
申请日：2018-08-06
发明人： Akira UENODAN , Takahiro MIKI , Takayuki YOGO , Binti Haridan FATIN FARHANAH , Tsutomu KONO , Shinobu TASHIRO
摘要： To obtain a low-pressure-loss physical quantity detection device that can detect a plurality of physical quantities of intake air. A physical quantity detection device of the present invention that detects a plurality of physical quantities of a measured gas flowing in a main passage, the physical quantity detection device includes: a circuit board on which a sensor that detects the plurality of physical quantities and an electronic component that controls the physical quantities are mountable; a circuit board accommodating unit that accommodates the circuit board; and a sub-passage in which a flow sensor is disposed. The circuit board is accommodated in the circuit board accommodating unit on an upstream side of the sub-passage, and disposed in parallel with the measured gas flowing through the main passage.
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公开(公告)号：US20200150065A1
公开(公告)日：2020-05-14
申请号：US16632844
申请日：2018-07-30
发明人： Takahiro MIKI , Akira UENODAN , Takayuki YOGO , Binti Haridan FATIN FARHANAH , Shinobu TASHIRO , Tsutomu KONO
摘要： To obtain a physical quantity detection device that can prevent a thermal influence on a sensor due to downsizing. A physical quantity detection device 20 of the present invention includes a measuring unit 213 protruding from an inner wall of a main passage 22 toward a passage center of the main passage. The physical quantity detection device 20 includes at least one of a flow sensor 205 that detects a flow rate of a measured gas 2, an intake air temperature sensor 203 that detects temperature, a pressure sensor 204 that detects pressure, and a humidity sensor 206 that detects humidity, and the sensors are disposed along a protruding direction of the measuring unit 213.
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公开(公告)号：US20190323871A1
公开(公告)日：2019-10-24
申请号：US16464867
申请日：2017-09-27
摘要： A thermal flowmeter includes a plurality of measuring units for stabilizing air flowing in a sub-passage, and improves noise performance or a pulsation characteristic of a flow rate sensor. The thermal flowmeter includes a flange fixed to an attachment part of a main passage, a sub-passage takes in a part of measured gas flowing in the main passage, a flow rate measuring unit measures a flow rate of the measured gas in the sub-passage, a circuit component controls the flow rate measuring unit, and the flow rate measuring unit and an electronic component are mounted on a circuit substrate. The sub-passage is formed in a substrate of the circuit substrate, the sub-passage on a surface side of the circuit substrate and a second space on a rear surface side are separated by the circuit substrate, and a pressure measuring unit and the circuit component are arranged in the second space.
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