CN103872525A - Plug Connecting Unit for Connecting a Cable Circuit with a Sensor Module - Google Patents
Plug Connecting Unit for Connecting a Cable Circuit with a Sensor Module Download PDFInfo
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- CN103872525A CN103872525A CN201310684746.4A CN201310684746A CN103872525A CN 103872525 A CN103872525 A CN 103872525A CN 201310684746 A CN201310684746 A CN 201310684746A CN 103872525 A CN103872525 A CN 103872525A
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- sensor assembly
- cable circuit
- housing
- linkage unit
- magnetic screen
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Abstract
The invention relates to a plug connecting unit for connecting a cable circuit with a sensor module and especially relates to a plug connecting unit for connecting a cable circuit in a cable circuit housing (23) with a sensor module in a sensor module housing (17). The plug connecting unit comprises a wireless interface (2) for energy- and/or data transmission between the cable circuit (3,14) and the sensor module (1,15). A first section of the wireless interface (2) is arranged in the cable circuit (3,14) and a second section of the wireless interface (2) is arranged in the sensor module (1,15). The wireless interface (2) is surrounded by a magnetic shielding (10) and the magnetic shielding (10) is arranged in the cable circuit housing (23) and/or in the sensor module housing (17).
Description
Technical field
The present invention relates to a kind of plug linkage unit for cable circuit is connected with sensor assembly, it comprises the wave point for carry out energy and/or transfer of data between cable circuit and sensor assembly.The second segmentation that the first segmentation of this interface is arranged in cable circuit and this interface is arranged in sensor assembly.
Background technology
In process automation, a large amount of different transducers are applied for recording process variable.The example of such transducer comprises pH transducer, gas sensor, flow sensor, mass flow sensor etc.In modern industry factory, such transducer operates under the varying environment condition of being everlasting.For example, transducer is exposed among aggressive chemistry goods, heat, vibration etc.
Under these circumstances, transducer is arranged on the measurement point being made up of sensor element and sensor wire, and this sensor wire is connected transducer with measuring transducer.Under some applicable cases, transducer is placed in stainless steel or the scalable assembly such as the durable synthetic material of plastics and to make it possible to, transducer is inserted among process and therefrom and is recalled.
From DE102007048812A1, know a kind of cable circuit that digital signal regulates that has.This cable circuit is for being connected sensor assembly with measuring transducer.This cable circuit comprises the non-contact interface of carrying out signal transmission between circuit for forming at cable and sensor assembly, and wherein between this sensor assembly and cable circuit, the signal transmission between the isolation of electric current ground and cable circuit and sensor assembly is undertaken by device optics, inductance or electric capacity.In addition, also via this wave point, sensor assembly is carried out to energy supply.In this case, this wave point part is arranged in cable circuit and is partly arranged in sensor assembly, wherein by cable circuit is introduced to sensor assembly, two parts of this wave point is arranged relative to one another.The housing of this sensor assembly and cable has relative little diameter, for example 12mm.This transducer can be applied in scalable assembly (seeing below), thereby maximum outside dimension is predetermined.As already mentioned, in the circuit of a part for Signal Regulation in transducer and/or cable, carry out.The required parts of adjusting such as microprocessor, other active element and passive component must adapt to predetermined steric requirements.Due to relatively little diameter of the housing, the thickness of cable housing is very little and for example in 1-2mm, and correspondingly, the thickness of sensor housing is very little and for example in 1-2mm.
Especially, when wave point is implemented as that its armature winding is arranged in cable circuit and its secondary winding while being arranged on the stray magnetic field transformer in sensor assembly, there will be the stray magnetic field of energy and transfer of data, it is also outside cable and sensor housing.By for example such plug linkage unit being arranged in the stainless steel assembly of tubulose to sensor assembly is inserted among the medium that will check, this stainless steel assembly affects to some extent on stray magnetic field.On the other hand, the effect of this stainless steel assembly is similar to the second subprime winding of electrical short.On the other hand, there is the eddy current loss of stainless steel assembly.Thus, the effective inductance of armature winding and effective mass change to some extent with the working point of this armature winding and comprise the mode that the efficiency of the cable of transducer decreases and change.Consequently energy and transfer of data are all subject to negative effect.
Summary of the invention
Therefore, the object of this invention is to provide a kind of plug linkage unit, under given space requirement, particularly with minimum possible space requirement, it has guaranteed reliable energy and/or transfer of data between cable circuit and sensor assembly.
According to the present invention, this object realizes by the feature that comprises the wave point being surrounded by magnetic cup covert, and this wave point is arranged in cable circuit housing and/or sensor assembly housing.Therefore, make it possible to carry out safe transmission in the situation that thering is given space requirement.The advantage that this magnetic cup covert has is, the magnetic circuit of plug linkage unit is changed and makes within it exists only in cable circuit and sensor assembly.Under these circumstances, the stray magnetic field beyond cable circuit and sensor assembly is very little, thereby is eliminated for the impact of energy and transfer of data.
Advantageously, this wave point is implemented as inductance or capacitive interface.Particularly, in the case of such physical principle, be necessary to use shielding to suppress the impact of the function of outside stray magnetic field docking port.
In one distortion, this magnetic screen is made up of the film or the thin slice that are arranged on cable circuit housing and/or sensor assembly enclosure interior.By this way, this magnetic screen can be simply constructed and its manufacture is that cost is effective.
Alternatively, this magnetic screen is placed in the cable housing of plastics and/or the sensor assembly housing of plastics.Therefore,, when for example in the time carrying out ferromagnetic material injection molding around plastics, do not need two layers to being formed by housing and shielding about regulating each other.
In a kind of embodiment of form, this cable circuit housing and/or sensor assembly housing are made by plastic bonding ferrite wholly or in part.Therefore, cable circuit housing and sensor assembly housing are the materials that is simultaneously used as magnetic screen.
In other distortion, this magnetic screen realizes at least one region of cable circuit housing of the first segmentation that surrounds wave point, and/or at least in the region of the second segmentation of sensor assembly housing that surrounds wave point, realizes.With this form, provide the shielding of minimum level with respect to outside stray magnetic field.The magnetic field being produced by inductance or capacitive interface is extended manyly at cable inside circuit, the magnetic screen of cable circuit housing is more complete, correspondingly, the magnetic field being produced by inductance or capacitive interface is extended manyly in sensor assembly inside, and the magnetic screen of sensor assembly housing is more complete.
In one embodiment, this magnetic screen is made up of the material of the relative permeability with >1.Selection has the material of such magnetic permeability and has guaranteed the shielding to the stray magnetic field beyond plug linkage unit.
This magnetic screen can be made by lot of materials.Particularly, in the situation that magnetic screen is made up of ferromagnetic material, realize extra high relative permeability.
Advantageously, the magnetic screen of electric conducting material is embodied as tubulose and comprises longitudinal slot.This longitudinal slot has suppressed the appearance of secondary short circuited winding.
In a preferred embodiment, the diameter that this cable circuit housing and sensor assembly housing are embodied as tubulose and have about 12mm.Especially, this housing should so be realized they can be applied in scalable assembly.
Accompanying drawing explanation
The present invention allows the embodiment of various ways.To explain in more detail its selection based on accompanying drawing now, accompanying drawing illustrates as follows, the Reference numeral that the feature being wherein equal to is provided to be equal to:
Fig. 1 is the exchanges data between measuring transducer, cable circuit and sensor assembly;
Fig. 2 is the example of the embodiment of cable circuit and sensor assembly; With
Fig. 3 is according to the example of the embodiment of the shielding of the inductive interface of Fig. 2.
Embodiment
Fig. 1 shows the plug linkage unit for recording and forward measured numerical value.This plug linkage unit comprises sensor assembly 1, and it communicates via wave point 2 and cable circuit 3.Under these circumstances, wave point 2 is implemented as inductive interface.For recorded data in sensor assembly 1 being forwarded to superior system, cable circuit 3 is connected with measuring transducer 5 via cable 4.The part task of measuring transducer 5 can be born by cable circuit 3.Therefore, for example, also may directly sensor assembly 1 be connected to bus.
Sensor assembly 1 comprises transducer 6, and it is applied to the scene of process automation, is for example therefore flow sensor, mass flow sensor, pH transducer, gas sensor etc.In sensor assembly 1, transducer 6 is connected with electronic circuit 7, this electronic circuit 7 and then be coupled with wireless inductive interface 2.Inductive interface 2 comprises the secondary winding 9 that is arranged on the armature winding 8 of cable circuit one side and is arranged on sensor assembly one side.Secondary winding 9 is connected with electronic circuit 7.When sensor assembly 1 by means of can socket, connector coupling and while being inserted on cable circuit 3, armature winding 8 and secondary winding 9 relative to each other enter defined space orientation, thereby can between cable circuit 3 and sensor assembly 1, transmit high-frequency signal with both direction.By this way, make it possible to carry out exchanges data between cable circuit 3 and sensor assembly 1.
In addition can also carry out via inductive interface 2, the energy supply of sensor assembly 1.In this respect, the high-frequency signal of the cable circuit 3 producing in circuit 12 is received by the secondary winding 9 of sensor assembly 1, to be used as the operating voltage of electronic circuit 7 and transducer 6.Except wave point 2, cable circuit 3 comprises the interface 11 with cable 4, carries out and the exchanges data of measuring transducer 5 via this interface 11.
Fig. 2 shows the example of the embodiment of the cable circuit 14 that is arranged on cable 13 ends.In addition, show sensor assembly 15, it can be via can socket, connector coupling being connected with cable circuit 14, to make it possible to carrying out data and Energy Transfer via inductive interface 2.Sensor assembly 15 comprises the transducer 16 for recording measured value.Sensor assembly housing 17 comprises screw thread 18, to sensor assembly 15 can be arranged in the scalable assembly (not shown) of stainless steel.Provide cylinder end part 19 at sensor assembly 15 away from one end of transducer 16, be wherein provided with the secondary winding 20 of inductive interface 2.The otch (cutout) of bayonet connector 21 is arranged in the side of cylinder end part 19.
The cylinder end part 19 of sensor assembly 15 comprises front end cavity 22, and it is used for holding the cylinder projection 24 being formed on cable circuit housing 23.Be equipped with the FERRITE CORE of the armature winding of inductive interface 2 to be positioned at cylinder projection 24.During cable circuit 14 inserts sensor assembly 15, the armature winding being arranged in projection 24 enters defined locus with respect to secondary winding 20, to make it possible to carrying out data and Energy Transfer between cable circuit 14 and sensor assembly 15.The lug extending radially inwardly on the sleeve-shaped side 25 of cable circuit 14 engages and fixes this plug with the otch of bayonet connector 21 subsequently and is connected.Cable circuit housing 23 and sensor assembly housing 17 are embodied as tubulose and have the diameter of 12mm.The wall thickness of housing 23 is about 1mm, thereby cable circuit 14 must be placed in the inside in all the other 10mm, and correspondingly, the wall thickness of housing 17 is about 1mm, and sensor assembly 15 must be placed in the inside in all the other 10mm.
Fig. 3 shows the magnetic screen 10 for sealing armature winding 8 and secondary winding 9.Magnetic screen 10 is made up of ferromagnetic material, and in the first embodiment, preferably utilizes film or slice-shaped to become tubulose.Cable circuit housing 23 and sensor assembly housing 17 are formed by plastics, and such as what explain with reference to figure 2, are embodied as equally tubulose.In installment state, the inductive interface 2 of plug linkage unit is at least surrounded in magnetic screen 10, and therefore surrounds armature winding 8 and secondary winding 9.Under these circumstances, for being set on plug linkage unit, magnetic screen 10 there is different choice.Magnetic screen 10 can internally be placed on cable circuit housing 23 and sensor assembly housing 17.A kind of solution of remarkable especially is, wherein sensor assembly housing 17 and cable circuit housing 23 are plastics, and magnetic screen 10 is introduced.In other replaceable form, shielding 10 can be attached to armature winding 8, and correspondingly, shielding 10 can be attached to secondary winding 9.Under these circumstances, magnetic screen 10 may be implemented as closed main body or is also implemented as band gap main body.When the material of magnetic screen 10 is conduction, be favourable with gap main body, to suppress the formation of secondary short circuited winding.
The advantage that the plug linkage unit of explaining has is, between sensor assembly 1,15 and cable circuit 3,14, is not subject to external magnetic field to carry out energy and transfer of data with affecting.Under these circumstances, be for example also eliminated from the magnetically external environment condition of activity of the scalable assembly of stainless steel that holds sensor assembly.And, owing to there being magnetic screen 10, do not interact so there is the sensor assembly of the vicinity that realized in the same manner of inductive interface 2.
Claims (10)
1. the plug linkage unit for the cable circuit of cable circuit housing (23) is connected with the sensor assembly in sensor assembly housing (17), it comprises at cable circuit (3, 14) and sensor assembly (1, 15) between, carry out the wave point (2) of energy and/or transfer of data, the first segmentation of wherein said wave point (2) is positioned at described cable circuit (3, 14) in and the second segmentation of described wave point (2) be positioned at described sensor assembly (1, 15) in, wherein said wave point (2) is surrounded by magnetic screen (10), it is characterized in that described magnetic screen (10) is arranged in described cable circuit housing (23) and/or described sensor assembly housing (17).
2. according to the plug linkage unit of claim 1, it is characterized in that described wave point (2) is implemented as inductance or capacitive interface.
3. according to the plug linkage unit of claim 1 or 2, it is characterized in that described magnetic screen (10) is formed by being arranged on described cable circuit housing (23) and/or sensor assembly housing (17) inner film or thin slice.
4. according to the plug linkage unit of at least one in claims 1 to 3, it is characterized in that described magnetic screen (10) is placed in the cable circuit housing (23) of plastics and/or the sensor assembly housing (17) of plastics.
5. according to the plug linkage unit of claim 4, it is characterized in that described cable circuit housing (23) and/or described sensor assembly housing (17) are made by plastic bonding ferrite wholly or in part.
6. according to the plug linkage unit of claim 4 or 5, it is characterized in that described magnetic screen (10) realizes at least one region the first segmentation, described cable circuit housing (23) that surrounds described wave point (2), and/or at least in the region the second segmentation, sensor assembly housing (17) that surrounds described wave point (2), realize.
7. according to the plug linkage unit of previous at least one claim, it is characterized in that described magnetic screen (10) is made up of the material of the relative permeability with >1.
8. according to the plug linkage unit of claim 7, it is characterized in that described magnetic screen (10) is for ferromagnet.
9. according to the plug linkage unit of previous at least one claim, it is characterized in that the described magnetic screen (10) of electric conducting material is embodied as tubulose and comprises longitudinal slot.
10. according to the plug linkage unit of previous at least one claim, it is characterized in that
Described cable circuit housing (23) and described sensor assembly housing (17) are embodied as tubulose and have the diameter of about 12mm.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012112221 | 2012-12-13 | ||
| DE102012112221.0 | 2012-12-13 | ||
| DE102013111405.9 | 2013-10-16 | ||
| DE102013111405.9A DE102013111405A1 (en) | 2012-12-13 | 2013-10-16 | Plug connection unit for connecting a cable circuit to a sensor module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103872525A true CN103872525A (en) | 2014-06-18 |
| CN103872525B CN103872525B (en) | 2018-01-26 |
Family
ID=50910796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310684746.4A Active CN103872525B (en) | 2012-12-13 | 2013-12-13 | For the plug connection unit that cable circuit is connected with sensor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103872525B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306041A (en) * | 2014-07-23 | 2016-02-03 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Intrinsically safe wireless converter for a field device |
| CN105588595A (en) * | 2014-11-07 | 2016-05-18 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Sensor arrangement, sensor and cable for use in process automation |
| CN105675036A (en) * | 2014-12-08 | 2016-06-15 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Method and plug-in connection for informing a process control center about a sensor being disconnected from a measuring transducer |
| CN111754747A (en) * | 2019-03-29 | 2020-10-09 | 罗斯蒙特公司 | Remote wireless sensing device |
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| DE10220450A1 (en) * | 2002-05-07 | 2003-11-20 | Conducta Endress & Hauser | Contactless connection cable |
| US20080034864A1 (en) * | 2003-09-23 | 2008-02-14 | Endress = Hauser Conducta Gmbh + Co. Kg | Pluggable Module for a Liquid or Gas Sensor |
| US20080164867A1 (en) * | 2007-01-08 | 2008-07-10 | Klaus Manfred Steinich | Angle sensor |
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Patent Citations (8)
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| US20020129633A1 (en) * | 2000-12-28 | 2002-09-19 | The Timken Company | Monitoring and controlling system with connectorless quick-change components |
| US20030016017A1 (en) * | 2001-06-26 | 2003-01-23 | Arne Reykowski | Connector device for a sensor or actuator |
| DE10220450A1 (en) * | 2002-05-07 | 2003-11-20 | Conducta Endress & Hauser | Contactless connection cable |
| US20080034864A1 (en) * | 2003-09-23 | 2008-02-14 | Endress = Hauser Conducta Gmbh + Co. Kg | Pluggable Module for a Liquid or Gas Sensor |
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| US20120062214A1 (en) * | 2009-03-17 | 2012-03-15 | Snecma | Contactless electrical connector for an induction sensor, and sensor including such a connector |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306041A (en) * | 2014-07-23 | 2016-02-03 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Intrinsically safe wireless converter for a field device |
| CN105306041B (en) * | 2014-07-23 | 2018-11-16 | 恩德莱斯和豪瑟尔分析仪表两合公司 | The wireless swticher of essential safety for field device |
| CN105588595A (en) * | 2014-11-07 | 2016-05-18 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Sensor arrangement, sensor and cable for use in process automation |
| US9829354B2 (en) | 2014-11-07 | 2017-11-28 | Endress+Hauser Conducta Gmbh+Co. Kg | Sensor arrangement, sensor and cable for use in process automation |
| CN111595369A (en) * | 2014-11-07 | 2020-08-28 | 恩德莱斯和豪瑟尔分析仪表两合公司 | Sensor arrangement, sensor and cable for process automation |
| CN105675036A (en) * | 2014-12-08 | 2016-06-15 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Method and plug-in connection for informing a process control center about a sensor being disconnected from a measuring transducer |
| CN105675036B (en) * | 2014-12-08 | 2019-01-04 | 恩德莱斯和豪瑟尔分析仪表两合公司 | For informing the method and inserting connection piece of sensor and measurement translator disconnection |
| CN111754747A (en) * | 2019-03-29 | 2020-10-09 | 罗斯蒙特公司 | Remote wireless sensing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103872525B (en) | 2018-01-26 |
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