CN103872525B - For the plug connection unit that cable circuit is connected with sensor assembly - Google Patents
For the plug connection unit that cable circuit is connected with sensor assembly Download PDFInfo
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- CN103872525B CN103872525B CN201310684746.4A CN201310684746A CN103872525B CN 103872525 B CN103872525 B CN 103872525B CN 201310684746 A CN201310684746 A CN 201310684746A CN 103872525 B CN103872525 B CN 103872525B
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- sensor assembly
- cable circuit
- connection unit
- plug connection
- magnetic screen
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Abstract
The present invention relates to a kind of plug connection unit for cable circuit to be connected with sensor assembly, is particularly used for cable circuit shell（23）In cable circuit and sensor assembly housing（17）In the plug connection unit that is connected of sensor assembly, it includes being used in cable circuit（3,14）And sensor assembly（1,15）Between carry out the wave point of energy and/or data transfer（2）, the wherein wave point（2）First segmentation be arranged on cable circuit（3,14）In and the wave point（2）Second segmentation be arranged on sensor assembly（1,15）In, the wherein wave point（2）By magnetic screen（10）Surround and the magnetic screen（10）It is arranged on cable circuit shell（23）And/or sensor assembly housing（17）In.
Description
Technical field
The present invention relates to a kind of plug connection unit for cable circuit to be connected with sensor assembly, and it includes using
In the progress energy between cable circuit and sensor assembly and/or the wave point of data transfer.First segmentation of the interface
In cable circuit and the interface second segmentation be located at sensor assembly in.
Background technology
In process automation, a large amount of different sensors are applied for recording process variable.Such biography
The example of sensor includes pH sensors, gas sensor, flow sensor, mass flow sensor etc..In modem industrial plants
In, such sensor is often operated under difficult environmental conditions.For example, sensor is exposed to aggressive chemistry system
Among product, heat, vibration etc..
In this case, sensor is arranged on the measurement point being made up of sensor element and sensor wire,
Sensor and measuring transducer are attached by the sensor wire.Under some applicable cases, sensor is placed in stainless steel
Or in the scalable component of the durable synthetic material of such as plastics so that can insert the sensors among process and
Therefrom recall.
A kind of cable circuit with data signal regulation has been known from DE102007048812A1.The cable circuit is used
In sensor assembly is connected with measuring transducer.The cable circuit includes being used for the circuit and sensing formed in cable
The non-contact interface of signal transmission is carried out between device module, is wherein galvanically isolated between the sensor assembly and cable circuit
And the signal transmission between cable circuit and sensor assembly is carried out by optical, inductance or electric capacity device.This
Outside, energy supply also is carried out to sensor assembly via the wave point.In this case, the wave point part is located at line
In cable circuit and part be located at sensor assembly in, wherein by by cable circuit introduce sensor assembly and this wirelessly connects
Two parts of mouth are configured relative to one another.The housing of the sensor assembly and cable has relatively small diameter, such as
12mm.The sensor can be applied to scalable component（See below）In, so as to which maximum outside dimension is predetermined.As
Through what is mentioned, the part of Signal Regulation is carried out in the circuit in sensor and/or cable.Such as microprocessor, Qi Tayou
Part needed for the regulation of source element and passive element etc must adapt to predetermined steric requirements.Because relatively small housing is straight
The reason for footpath, the thickness of cable housing is very small and for instance in 1-2mm, and correspondingly, the thickness of sensor housing is very small
And for instance in 1-2mm.
Especially, when wave point is implemented as that its armature winding is arranged in cable circuit and its secondary windings is arranged on
During stray magnetic field transformer in sensor assembly, it may appear that the stray magnetic field of energy and data transfer, it is also in cable and biography
Outside sensor housing.For example, by such plug connection unit is arranged in the stainless steel component of tubulose so as to by sensor
Among the module insertion medium to be checked, the stainless steel component has influenceed on stray magnetic field.On the other hand, the stainless steel component
The similar second subprime winding being short-circuit of effect.On the other hand, there is the eddy current loss of stainless steel component.Thus, it is primary
The effective inductance and effective mass of winding are varied from the operating point of the armature winding and the effect of cable including sensor
Mode that rate decreases and change.The result is that energy and data transfer become negatively affected.
The content of the invention
It is therefore an object of the present invention to a kind of plug connection unit is provided, under given space requirement, particularly with minimum
Possible space requirement, which ensure that reliable energy and/or data transfer between cable circuit and sensor assembly.
According to the present invention, the purpose realizes that this is wireless by the feature of the wave point including being surrounded by magnetic cup covert
Interface is arranged in cable circuit shell and/or sensor assembly housing.Therefore, enabling with given space requirement
In the case of carry out safe transmission.Advantage possessed by the magnetic screen is that the magnetic circuit of plug connection unit is altered so that it only
It is present within cable circuit and sensor assembly.In this case, it is spuious beyond cable circuit and sensor assembly
Field very little, the influence hence for energy and data transfer are eliminated.
Advantageously, the wave point is implemented as inductance or capacitive interface.Particularly in the situation of such physical principle
Under, it is necessary to using shielding to suppress the influence of the function of external stray field docking port.
In one kind deforms, the magnetic screen is by being arranged on the thin of cable circuit shell and/or sensor assembly enclosure interior
Film or thin slice are formed.By this way, the magnetic screen can be simple structure and its manufacture is cost-effective.
Alternatively, the magnetic screen is placed in the cable housing of plastics and/or the sensor assembly housing of plastics.Cause
Two layers being made up of housing and shielding when carrying out ferromagnetic material injection molding for example around plastics, and need not be closed by this
In being adjusted each other.
In a form of embodiment, the cable circuit shell and/or sensor assembly housing are completely or partially by moulding
Expect made by bonded ferrite.Therefore, cable circuit shell and sensor assembly housing are the materials for being used as magnetic screen simultaneously.
In other deformation, the magnetic screen surround wave point first segmentation cable circuit shell at least one
Realize in individual region, and/or at least realized in the region for surrounding the second of sensor assembly housing of wave point the segmentation.With
This form, the shielding of minimum level is provided relative to external stray field.The magnetic field as caused by inductance or capacitive interface exists
Extend more inside cable circuit, the magnetic screen of cable circuit shell is more complete, correspondingly, is produced by inductance or capacitive interface
Raw magnetic field extends more inside sensor assembly, and the magnetic screen of sensor assembly housing is more complete.
In one embodiment, the magnetic screen by with>The material of 1 relative permeability is formed.Selection has so
The material of magnetic conductivity ensure that shielding to the stray magnetic field beyond plug connection unit.
The magnetic screen can be as made by lot of materials.Particularly in the case where magnetic screen is made up of ferromagnetic material,
Realize extra high relative permeability.
Advantageously, the magnetic screen of conductive material is embodied as tubulose and including longitudinal slot.The longitudinal slot inhibits secondary
The appearance of level short-circuited winding.
In a preferred embodiment, the cable circuit shell and sensor assembly housing are embodied as tubulose and with about
12mm diameter.Especially, the housing, which should be accomplished, allows them to be applied in scalable component.
Brief description of the drawings
The present invention allows the embodiment of diversified forms.It will be selected to be explained in more detail based on accompanying drawing now,
Accompanying drawing is illustrated below, wherein equivalent feature is provided to equivalent reference：
Data exchanges of the Fig. 1 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 the example according to the embodiment of the shielding of Fig. 2 inductive interface.
Embodiment
Fig. 1 shows the plug connection unit for recording and forwarding measured numerical value.The plug connection unit includes passing
Sensor module 1, it is communicated via wave point 2 with cable circuit 3.In this case, wave point 2 is implemented as
Inductive interface.In order to which by the data forwarding recorded in sensor assembly 1 to superior system, cable circuit 3 is via cable 4
It is attached with measuring transducer 5.The partial task of measuring transducer 5 can be undertaken by cable circuit 3.Thus, for example,
Sensor assembly 1 directly may be connected to bus.
Sensor assembly 1 includes sensor 6, and it was applied to the scene of process automation, thus e.g. flow sensor,
Mass flow sensor, pH sensors, gas sensor etc..In sensor assembly 1, sensor 6 is connected with electronic circuit 7
Connect, the electronic circuit 7 and then be coupled with wireless inductive interface 2.Inductive interface 2 includes the primary for being arranged on cable circuit side
Winding 8 and the secondary windings 9 for being arranged on sensor assembly side.Secondary windings 9 is connected with electronic circuit 7.Work as sensor
Module 1 by means of can socket, connector couple and when being inserted on cable circuit 3, armature winding 8 and secondary windings 9 enter relative to each other
Enter defined space orientation, so as to believe between cable circuit 3 and sensor assembly 1 with both direction transmission high frequency
Number.By this way, enabling data exchange is carried out between cable circuit 3 and sensor assembly 1.
Additionally it is possible to the energy supply of sensor assembly 1 is carried out via inductive interface 2.In this respect, in circuit 12
The high-frequency signal of caused cable circuit 3 is received by the secondary windings 9 of sensor assembly 1, so as to as the He of electronic circuit 7
The operating voltage of sensor 6.In addition to wave point 2, cable circuit 3 includes the interface 11 with cable 4, via the interface 11
Carry out the data exchange with measuring transducer 5.
Fig. 2 shows the example of the embodiment for the cable circuit 14 for being arranged on the end of cable 13.Further there is illustrated sensor
Module 15, its can via can socket, connector coupling be attached with cable circuit 14, enable to enter via inductive interface 2
Row data and energy transmission.Sensor assembly 15 includes being used for the sensor 16 for recording measured value.Sensor assembly housing
17 include screw thread 18, so as to which sensor assembly 15 is arranged on into the scalable component of stainless steel（It is not shown）In.In sensor
The one end of module 15 away from sensor 16 is provided with cylinder end part 19, is provided with the secondary windings of inductive interface 2
20.The otch of bayonet connector 21（cutout）In the side of cylinder end part 19.
The cylinder end part 19 of sensor assembly 15 includes front end cavity 22, and it is used for accommodating to be formed in cable circuit
Cylinder projection 24 on housing 23.It is located at cylinder projection 24 equipped with the FERRITE CORE of the armature winding of inductive interface 2
It is interior.During cable circuit 14 inserts sensor assembly 15, the armature winding in projection 24 is arranged on relative to secondary windings 20
Into defined locus, enable to carry out data between cable circuit 14 and sensor assembly 15 and energy passes
It is defeated.Otch of the lug extended radially inwardly on the sleeve-shaped side 25 of cable circuit 14 then with bayonet connector 21 engages
And fix plug connection.Cable circuit shell 23 and sensor assembly housing 17 are embodied as tubulose and straight with 12mm
Footpath.The wall thickness of housing 23 is about 1mm, the inside that must be placed in so as to cable circuit 14 in remaining 10mm, correspondingly, shell
The wall thickness of body 17 is about 1mm, and sensor assembly 15 must be placed in the inside in remaining 10mm.
Fig. 3 shows the magnetic screen 10 for encapsulating armature winding 8 and secondary windings 9.Magnetic screen 10 is by ferromagnetic material
It is made, and in the first embodiment, it is preferred to use film or slice-shaped turn into tubulose.Cable circuit shell 23 and sensing
Device module housing 17 formed by plastics, and it is all as explained with reference to fig. 2, be likewise implemented as tubulose.In installment state, magnetic
The inductive interface 2 of plug connection unit is at least surrounded in shielding 10, and therefore surrounds armature winding 8 and secondary windings 9.So
In the case of, there is different choice for magnetic screen 10 is set on plug connection unit.Magnetic screen 10 can be internally
It is placed on cable circuit shell 23 and sensor assembly housing 17.A kind of solution of remarkable especially is, wherein passing
Sensor module housing 17 and cable circuit shell 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 windings 9.In such situation
Under, magnetic screen 10 may be implemented as closing main body or be also implemented to band suture body.Band suture body is in magnetic screen 10
Material be favourable when being conductive, to suppress the formation of secondary short circuited winding.
Advantage possessed by the plug connection unit explained is, sensor assembly 1,15 and cable circuit 3,14 it
Between do not carry out energy and data transfer by external magnetic fields.In this case, such as from receiving sensor assembly
The magnetically movable external environment condition of the scalable component of stainless steel be also eliminated.It is additionally, since and magnetic screen is present
10, so the neighbouring sensor assembly realized in the same manner with inductive interface 2 does not interact.
Claims (9)
1. one kind is used for the sensor die in the cable circuit in cable circuit shell (23) and sensor assembly housing (17)
The plug connection unit that block is connected, it includes being used to carry out energy between cable circuit (3,14) and sensor assembly (1,15)
Amount and/or data transfer wave point (2), wherein the wave point (2) first segmentation positioned at the cable circuit (3,
14) in and the wave point (2) second segmentation be located at the sensor assembly (1,15) in, wherein the wave point
(2) surrounded by magnetic screen (10), it is characterised in that the magnetic screen (10) be arranged on the cable circuit shell (23) and/
Or in the sensor assembly housing (17),
Wherein described magnetic screen (10) is set to first segmentation of the wave point (2) and/or second segmentation,
And it is implemented as closing main body,
Wherein described cable circuit shell (23) and the sensor assembly housing (17) are embodied as tubulose and with about
12mm diameter, and
The wall thickness of wherein described cable circuit shell (23) and the wall thickness of the sensor assembly housing (17) are about
1mm。
2. plug connection unit according to claim 1, it is characterised in that the wave point (2) is implemented as inductance or electric capacity
Interface.
3. plug connection unit according to claim 1, it is characterised in that the magnetic screen (10) is by being arranged on the cable electricity
The film or thin slice of road housing (23) and/or sensor assembly housing (17) inside are formed.
4. plug connection unit according to claim 1, it is characterised in that the magnetic screen (10) is placed in the cable electricity of plastics
In the sensor assembly housing (17) of road housing (23) and/or plastics.
5. plug connection unit according to claim 4, it is characterised in that the cable circuit shell (23) and/or the sensing
Device module housing (17) is completely or partially as made by plastics bonded ferrite.
6. plug connection unit according to claim 4, it is characterised in that the magnetic screen (10) is surrounding the wave point
(2) realized at least one region of the first segmentation, described cable circuit shell (23), and/or at least described in encirclement
Realized in region that the second of wave point (2) is segmented, sensor assembly housing (17).
7. the plug connection unit of one in claim 1-6, it is characterised in that the magnetic screen (10) by with>1
The material of relative permeability formed.
8. plug connection unit according to claim 7, it is characterised in that the magnetic screen (10) is ferromagnet.
9. the plug connection unit of one in claim 1-6, it is characterised in that the magnetic screen of conductive material
(10) it is embodied as tubulose and including longitudinal slot.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012112221.0 | 2012-12-13 | ||
| DE102012112221 | 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 CN103872525A (en) | 2014-06-18 |
| CN103872525B true 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) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014110385B4 (en) * | 2014-07-23 | 2018-01-11 | Endress+Hauser Conducta Gmbh+Co. Kg | Intrinsically safe radio dongle for a field device |
| DE102014116236A1 (en) | 2014-11-07 | 2016-05-12 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Sensor arrangement, sensor and cable for use in process automation |
| DE102014118066A1 (en) * | 2014-12-08 | 2016-06-09 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Method and connector for informing a process control center about disconnecting a sensor from a transmitter |
| US11047842B2 (en) * | 2019-03-29 | 2021-06-29 | Rosemount Inc. | Remote wireless sensing apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821592A (en) * | 2007-10-10 | 2010-09-01 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Cable circuit with digital signal processing |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6523383B2 (en) * | 2000-12-28 | 2003-02-25 | The Timken Company | Monitoring and controlling system with connectorless quick-change components |
| DE10130615C2 (en) * | 2001-06-26 | 2003-07-31 | Siemens Ag | Connection device for a sensor or actuator |
| DE10220450A1 (en) * | 2002-05-07 | 2003-11-20 | Conducta Endress & Hauser | Contactless connection cable |
| DE10344262A1 (en) * | 2003-09-23 | 2005-04-14 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Plug-in module for a liquid or gas sensor |
| DE202007011837U1 (en) * | 2007-01-08 | 2007-12-06 | Asm Automation Sensorik Messtechnik Gmbh | angle sensor |
| FR2943452B1 (en) * | 2009-03-17 | 2011-04-15 | Snecma | CONTACTLESS ELECTRICAL CONNECTOR FOR INDUCTIVE SENSOR, SENSOR COMPRISING SUCH A CONNECTOR |
| CN202471095U (en) * | 2012-01-10 | 2012-10-03 | 合肥邦立电子股份有限公司 | High precision non-contact exhaust gas recirculation valve position sensor |
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2013
- 2013-12-13 CN CN201310684746.4A patent/CN103872525B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821592A (en) * | 2007-10-10 | 2010-09-01 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Cable circuit with digital signal processing |
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| Publication number | Publication date |
|---|---|
| CN103872525A (en) | 2014-06-18 |
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