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Sensor arrangement for determining at least one parameter of a fluid medium flowing through a channel

一种传感器组件、流体介质的技术，应用在测量仪器组件、测量流量/质量流量、液体/流体固体测量等方向，能够解决相对位置有波动等问题，达到窄位置公差、小耗费的效果

Active Publication Date: 2016-10-12
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resulting fluctuations in the relative position of the cover relative to the housing body

Method used

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  • Sensor arrangement for determining at least one parameter of a fluid medium flowing through a channel
  • Sensor arrangement for determining at least one parameter of a fluid medium flowing through a channel
  • Sensor arrangement for determining at least one parameter of a fluid medium flowing through a channel

Examples

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Embodiment Construction

[0033] figure 1 A sensor assembly 10 for determining a parameter of a fluid medium flowing through a channel is shown. In the present exemplary embodiment, sensor arrangement 10 is designed as a hot-film air mass sensor and is particularly capable of sensing an intake air mass flow of an internal combustion engine. In this embodiment, the sensor assembly 10 includes a sensor housing 12 . The sensor housing 12 is designed as a plug-in probe, which can be inserted, for example, into a draft tube, in particular into an intake manifold of an internal combustion engine. A channel structure 14 of the type explained in more detail below is formed in sensor housing 12 . The sensor housing 12 has a housing body 16 and a cover 18 .

[0034] figure 2 A perspective view of the cover 18 is shown. The channel structure 14 is formed in the cover 18 . A representative amount of fluid medium can flow through the channel structure 14 via the inlet opening or inlet 20 which in the inserte...

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PUM

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Abstract

The invention proposes a sensor arrangement (10) for determining at least one parameter of a fluid medium flowing through a channel (30), particularly of an intake air mass flow of an internal combustion engine. The sensor arrangement (10) comprises a sensor housing (12), in particular a plug-in sensor which is introduced or can be introduced into a flow tube and in which the channel (30) is formed, and at least one sensor chip (36) which is arranged in the channel (30) and is intended to determine the parameter of the fluid medium. The sensor housing (12) has a housing body (16) and a cover (18). The channel (30) has an inlet (20) into the channel (30), which is counter to a main flow direction (18) of the fluid medium, and has at least one outlet (32) from the channel (30). The channel (30) is formed in the cover (18) and the cover (18) is connected to the housing body (16) by means of a force-fitting connection.

Description

Background technique [0001] Various methods and devices are known from the prior art for determining at least one flow property of a fluid medium (ie liquid and / or gas). In this case, the flow properties as possible parameters may be any measurable physical and / or chemical properties which quantify or characterize the flow of the fluid medium. In particular, flow velocity and / or mass flow and / or volume flow can be involved here. [0002] The invention is explained below in particular with reference to so-called hot-film air mass sensors, which are known, for example, from Konrad Reif (ed.): Sensors in Motor Vehicles (Sensoren im Kraftfahrzeug), 1st edition 2010, pages 146-148. Such hot-film air mass sensors are usually based on a sensor chip, in particular a silicon sensor chip, which has, for example, a sensor membrane as measuring surface or a sensor region that can be flooded by a flowing fluid medium. The sensor chip usually comprises at least one heating element and at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F15/14
CPCG01F1/684G01F1/692G01F15/14G01D11/245
Inventor T·迈斯U·瓦格纳A·考弗曼H·拜瑞希
Owner ROBERT BOSCH GMBH
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