CN103414457A - Integrated type miniaturized round proximity switch - Google Patents
Integrated type miniaturized round proximity switch Download PDFInfo
- Publication number
- CN103414457A CN103414457A CN2013103859489A CN201310385948A CN103414457A CN 103414457 A CN103414457 A CN 103414457A CN 2013103859489 A CN2013103859489 A CN 2013103859489A CN 201310385948 A CN201310385948 A CN 201310385948A CN 103414457 A CN103414457 A CN 103414457A
- Authority
- CN
- China
- Prior art keywords
- approach switch
- sizedization
- inductive
- coil
- outer shell
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Abstract
The invention provides an integrated type miniaturized round proximity switch. The integrated type miniaturized round proximity switch comprises a metal outer shell (1), a minitype inductive transducer, a switching circuit board, a socket (7), a micro inductive type approach transducer and switching circuit components, wherein the maximum outer diameter of the metal outer shell (1) is smaller than 23mm, the minitype inductive transducer is arranged in the metal outer shell (1) and is provided with a coil assembly (3), and the socket (7) is fixedly connected at the tail end of the metal outer shell. The micro inductive type approach transducer is formed by an inductive coil assembly (2) and an iron core, the opening end of the iron core is tightly attached to the inner bottom (9) of the metal outer shell of an inductive head, the inductive coil assembly is electrically connected with a switching circuit through two coil lead wires (4), the switching circuit components are composed of a receiving circuit board (5) and a voltage-stabilized source board (6), the switching circuit components are regarded at a unified independent body and are pasted and solidified in a rear cavity (10) of the metal outer shell through insulation glue. According to the integrated type miniaturized round proximity switch, the independent inductive transducer, an independent electronic component and an independent power source component are regarded as the unified independent body, the size is smaller than that of an independent miniaturized proximity switch in the prior art, and the size and the weight of a control box are reduced for a carrier.
Description
Technical field
The invention relates to and be mainly used in measuring moving object and the approaching distance≤2.15mm of target, the Miniature Circular approach switch of output discrete magnitude signal.
Background technology
So-called approach switch, refer to that measured target does not need the contact-making switch body, only need be close in the distance of regulation, and switch just sends the signal of regulation; Otherwise when measured target leaves to the distance of regulation, switch sends again the another kind of signal of regulation.Approach switch is a kind ofly have perceptual object near ability and export the product of discrete magnitude signal.The sensitivity characteristic that it utilizes built-in proximity transducer to have the ferromagnetic object approached, measure near the inductance value of testee position specified point, and this characteristic is transferred to receiving chip, through conversion, the situation of testee apart from the specified point position meaned by switching signal.In prior art, proximity transducer is product independently, the electrical type parts of supporting conversion are also independently with it, they are such cooperations: the signal that transducer is experienced, cable by electric connector, send it on the inductance receiving chip in the signal boxcar of stand-alone product, carry out the signal conversion by chip.Due to volume and the anti-environmental condition of signal boxcar, it is away from transducer, and therefore, signal transmission cable is considered by (15 ~ 20) m, because the inductance signal is easily disturbed, though take shielding, certainty of measurement is had a significant effect.Simultaneously, can find, if carrier element does not need more measuring point, the structure that this transducer separates with change-over circuit is very undesirable.
Summary of the invention
Task of the present invention is to provide that a kind of reliability is high, and the life-span is long, anti-environmental stress, mechanical oscillation and mechanical shock, the circular approach switch of the Integral small-sizedization that Electro Magnetic Compatibility is good.
Purpose of the present invention can reach by following measures: the circular approach switch of a kind of Integral small-sizedization, comprise, a maximum outside diameter is less than the metal shell 1 of 23mm, in metal shell 1 with micro electric sensing type sensor, the change-over circuit plate of coil combination 2 be fixed on the socket 7 of metal-back 1 openend.It is characterized in that, by inductance coil combination 2 and iron core 3, form micro-inductance type proximity transducer, iron core 3 openends are close to metal shell inner bottom part 9, inductance coil combination 2 connects the change-over circuit parts by two coil leads 4, circuit block is comprised of circuit board for receiving 5 and stabilized voltage power supply plate 6, make a unified separate component, be insulated gluing connecing and solidify in metal shell back cavity 10.
The present invention has following effect than prior art.
Simple in structure, volume is little.The present invention is by independently electronics, a power supply unit of inductance sensor and independently, make a unified separate component, cumulative volume is also less than miniaturization proximity transducer independent in existing technology, for the main body carrier, reduced the volume and weight of control box, also be convenient to the measuring point quantity of main body carrier such as medium and small aircraft and select when few.After socket 7 seal weldings of metal shell 1 and electric connector, the internal cavity of the accommodating microsensor of energy of a sealing of formation and change-over circuit etc., and the external diameter of induction head is 14.5mm, all the other maximum outside diameters are 21mm, and only having positive six side place external diameters is the positive six side's inscribed circle diameters of 23mm(), overall length is that 50mm(comprises socket, do not comprise plug), coordinating the installation screw thread is M16 * 1-6h etc., has realized real simplification, miniaturization.
The present invention newly designs the micro electric Sensor, select microchip and corresponding device, by prior art proximity transducer and independently being integrated in the circuit combination of sets such as electronic switch circuit, power supply conversion independently, greatly reduced small product size, alleviate product weight, improved the product test precision.
Full metal jacket and vacuum seal, and be insulated gluing connecing admittedly, the change-over circuit plate is directly solidified in metal shell 1 with insulating cement is bonding, without special mechanical fixed component, anti-harsher electromagnetic environment, natural environment, mechanical stress environmental requirement.
The peripheral components that stabilized voltage power supply plate 6 is equipped with power module and needs, circuit board for receiving 5 is equipped with miniature inductance receiving chip and related circuit, can accurately the inductance value that is greater than or less than the 5mH left and right be converted to discrete magnitude, realize the electrical type parts of separation and inductance sensor are made to an integral body.
The accompanying drawing explanation
Fig. 1 is the structure cutaway view of Miniature Circular approach switch of the present invention.
Fig. 2 is the cutaway view of miniature inductance transducer.
Fig. 3 is the circular housing profile schematic diagram of Fig. 1.
Fig. 4 is Fig. 1 circuit board for receiving schematic diagram.
Fig. 5 is Fig. 1 stabilized voltage power supply plate schematic diagram.
Fig. 6 is operation principle of the present invention and wiring schematic diagram.
In figure: 1. metal shell, 2. coil combination, 3. iron core, 4. coil lead, 5. circuit board for receiving, 6. stabilized voltage power supply plate, 7. electric connector socket, 8. metal shell operative end surface, 9. metal shell inner bottom part, 10. metal shell back cavity, 11. receiving circuit printed boards, 12. power line in power line in change-over circuit, 13. change-over circuits, 14. output lines, 15. the external cable line, 16. external cable lines, 17. stabilized voltage power supply printed boards, 18. the metal shell opening, 19. install screw thread, 20. measurands.
Embodiment
Below in conjunction with drawings and Examples, further illustrate the present invention, but therefore do not limit the present invention among described scope of embodiments.
In the Miniature Circular approach switch embodiment that Fig. 1～Fig. 5 describes, it is 14.5mm that the Miniature Circular approach switch has an active section external diameter, length is 3mm, extends to carrier mechanical interface position to the right screw thread 19 is installed, and the screw thread end is the orthohexagonal ring flange of length of side S=21mm.The ring flange another side is the thin cylinder of diameter Φ 21.Metal shell opening 18 welds together with the outer surface vacuum seal of socket 7 appropriate sections.The peripheral components that stabilized voltage power supply plate 6 is equipped with power module and needs, circuit board for receiving 5 is equipped with miniature inductance receiving chip and related circuit.Inductance coil combination 2 is inserted in an iron core 3 and is formed micro-inductance type proximity transducer, and the openend of its iron core 3 is close to metal shell inner bottom part 9.Inductance coil combination 2 connects by two coil leads 4 the change-over circuit parts that are comprised of circuit board for receiving 5 and stabilized voltage power supply plate 6.The change-over circuit parts are insulated gluing connecing and solidify in metal shell back cavity 10.By the lead-in wire change-over circuit parts that are connected, the vacuum seal welded seal, in metal circular shell aperture 18, forms the integral type approach switch together as the socket 7 of electric connector.Electric connector socket 7 is the electric interfaces of main body carrier.Induction head metal shell is shaped with installs screw thread 19, and the stabilized voltage power supply of change-over circuit parts and related circuit dress are in printed board 17, and receiving circuit and related circuit device dress are in printed board 11.
Referring to Fig. 6.Before not accessing socket 7, proximity transducer integral body is inserted to the inner bottom part 9 of metal shell 1, with glue, fix.Then, the other end that coil is entered to the coil lead 4 of end is welded in the chip input of receiving chip plate 5, and the other end that coil goes out the coil lead 4 of end is welded in the chip earth terminal of circuit board for receiving 5.The C pin of the output line 14 access sockets 7 of chip output, the external cable line 16 combination hub A pin of the power module of voltage regulation input of stabilized voltage power supply plate 6, connection+28V, the external cable line 15 combination hub B pin of power module earth terminal lead-in wire, connect the 28V negative terminal.Voltage DC13V after power module is changed and stablized, by power line in change-over circuit 12, in change-over circuit, power line 13 joins with the receiving chip power port.After above-mentioned lead-in wire, wire bonds is good, again circuit board for receiving 5 and stabilized voltage power supply plate 6 are disposed into metal shell back cavity 10 from metal shell opening 18 successively, and fix with insulating cement, after adhesive curing, socket 7 is inserted to metal shell opening 18, the vacuum seal welding is carried out in both joint portions, form complete product.
Miniature proximity transducer is made separately.Coil combination 2 is entered to end and go out to hold with two coil leads 4 to weld and tie up jail, then be fitted together with iron core 3, mix up characteristic, fix with insulating cement, form whole.Clearly, the external diameter of iron core 3 can not be greater than 13mm, needs to fill insulating cement between the external diameter of the internal diameter of metal shell 1 and iron core 3, after solidifying, and the fixing position of proximity transducer in housing.
Product monnolithic case after approach switch makes is about: maximum outside diameter is for being 21mm, and only having positive six side place inscribed circle diameter external diameters is 23mm, contains socket and does not comprise plug, and overall length is 50mm, and the induction head outer diameter is 14.5mm.For testing, approach the Moving Objects of distance for the 2.15mm left and right.
Claims (8)
1. the circular approach switch of an Integral small-sizedization, comprise, a maximum outside diameter is less than the metal shell (1) of 23mm, be placed in metal shell (1), micro electric sensing type sensor with coil combination (2), change-over circuit plate and the socket (7) that is fixed on metal-back (1) openend, it is characterized in that, micro-inductance type proximity transducer by inductance coil combination (2) and iron core (3) formation, iron core (3) openend is close to the metal shell inner bottom part (9) of responding to head, inductance coil combination (2) is electrically connected to the change-over circuit parts by two coil leads (4), the change-over circuit parts that circuit block is comprised of circuit board for receiving (5) and stabilized voltage power supply plate (6), make a unified separate component, being insulated gluing connecing solidifies in metal shell back cavity (10).
2. the circular approach switch of Integral small-sizedization according to claim 1, it is characterized in that, described Miniature Circular approach switch, it is 14.5mm that an active section external diameter is arranged, length is 3mm, extend to carrier mechanical interface position to the right screw thread (19) is installed, the screw thread end is the orthohexagonal ring flange of length of side S=21mm.
3. the circular approach switch of Integral small-sizedization according to claim 2 is characterized in that the ring flange another side is the thin cylinder of diameter of phi 21mm.
4. the circular approach switch of Integral small-sizedization according to claim 1, is characterized in that, the peripheral components that stabilized voltage power supply plate (6) is equipped with power module and needs, and circuit board for receiving (5) is equipped with miniature inductance receiving chip and related circuit.
5. the circular approach switch of Integral small-sizedization according to claim 1, it is characterized in that, by the lead-in wire change-over circuit parts that are connected, the vacuum seal welded seal, in metal circular shell aperture (18), forms the integral type approach switch together as the socket (7) of electric connector.
6. the circular approach switch of Integral small-sizedization according to claim 1, it is characterized in that, the other end of the coil lead (4) that coil enters to hold is welded in the chip input of receiving chip plate (5), and the other end of the coil lead (4) that coil goes out to hold is welded in the chip earth terminal of circuit board for receiving (5).
7. the circular approach switch of Integral small-sizedization according to claim 6, it is characterized in that, the output line of chip output (14) access socket (7) C pin, external cable line (16) the combination hub A pin of the power module of voltage regulation input of stabilized voltage power supply plate (6), connection+28V.
8. the circular approach switch of Integral small-sizedization according to claim 7 is characterized in that external cable line (15) the combination hub B pin of power module earth terminal lead-in wire, connect the 28V negative terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103859489A CN103414457A (en) | 2013-08-29 | 2013-08-29 | Integrated type miniaturized round proximity switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103859489A CN103414457A (en) | 2013-08-29 | 2013-08-29 | Integrated type miniaturized round proximity switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103414457A true CN103414457A (en) | 2013-11-27 |
Family
ID=49607447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103859489A Pending CN103414457A (en) | 2013-08-29 | 2013-08-29 | Integrated type miniaturized round proximity switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103414457A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483710A (en) * | 2014-12-18 | 2015-04-01 | 科瑞工业自动化系统（苏州）有限公司 | All-metal shell inductive transducer |
| CN106998202A (en) * | 2016-01-22 | 2017-08-01 | 欧姆龙株式会社 | Proximity switch |
| CN107024233A (en) * | 2017-05-26 | 2017-08-08 | 成都凯天电子股份有限公司 | Inductive proximity sensor simulaed inductance output circuit |
| CN107817099A (en) * | 2017-10-18 | 2018-03-20 | 浙江威盾机械科技有限公司 | A kind of distributor detection means |
| CN109000550A (en) * | 2018-08-25 | 2018-12-14 | 成都凯天电子股份有限公司 | Coil magnetic field protected type proximity sensor |
| CN109596147A (en) * | 2019-02-04 | 2019-04-09 | 光驰科技(上海)有限公司 | A kind of vacuum coating proximity sensor resistant to high temperature |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106039A (en) * | 2006-07-12 | 2008-01-16 | 株式会社东海理化电机制作所 | Non-contact switch |
| US20080202904A1 (en) * | 2007-02-28 | 2008-08-28 | Werner Olbrich | Switching device having a coupling element |
| CN201181935Y (en) * | 2008-03-24 | 2009-01-14 | 上海兰宝传感器有限公司 | Inductance type proximity switch |
| JP2009158149A (en) * | 2007-12-25 | 2009-07-16 | Panasonic Electric Works Co Ltd | Detecting part for proximity sensor, and proximity sensor |
-
2013
- 2013-08-29 CN CN2013103859489A patent/CN103414457A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106039A (en) * | 2006-07-12 | 2008-01-16 | 株式会社东海理化电机制作所 | Non-contact switch |
| US20080202904A1 (en) * | 2007-02-28 | 2008-08-28 | Werner Olbrich | Switching device having a coupling element |
| JP2009158149A (en) * | 2007-12-25 | 2009-07-16 | Panasonic Electric Works Co Ltd | Detecting part for proximity sensor, and proximity sensor |
| CN201181935Y (en) * | 2008-03-24 | 2009-01-14 | 上海兰宝传感器有限公司 | Inductance type proximity switch |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483710A (en) * | 2014-12-18 | 2015-04-01 | 科瑞工业自动化系统（苏州）有限公司 | All-metal shell inductive transducer |
| CN106998202A (en) * | 2016-01-22 | 2017-08-01 | 欧姆龙株式会社 | Proximity switch |
| CN106998202B (en) * | 2016-01-22 | 2020-08-28 | 欧姆龙株式会社 | Proximity switch |
| CN107024233A (en) * | 2017-05-26 | 2017-08-08 | 成都凯天电子股份有限公司 | Inductive proximity sensor simulaed inductance output circuit |
| CN107024233B (en) * | 2017-05-26 | 2023-08-11 | 成都凯天电子股份有限公司 | Inductance-type proximity sensor analog inductance output circuit |
| CN107817099A (en) * | 2017-10-18 | 2018-03-20 | 浙江威盾机械科技有限公司 | A kind of distributor detection means |
| CN109000550A (en) * | 2018-08-25 | 2018-12-14 | 成都凯天电子股份有限公司 | Coil magnetic field protected type proximity sensor |
| CN109000550B (en) * | 2018-08-25 | 2019-12-27 | 成都凯天电子股份有限公司 | Coil magnetic field shielding type proximity sensor |
| CN109596147A (en) * | 2019-02-04 | 2019-04-09 | 光驰科技(上海)有限公司 | A kind of vacuum coating proximity sensor resistant to high temperature |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103414457A (en) | Integrated type miniaturized round proximity switch | |
| CN203405507U (en) | Integrally cast electronic voltage transformer for detecting current | |
| CN108604135A (en) | The manufacturing method of electronic pen, electronic pen main part and electronic pen main part | |
| CN202815058U (en) | Current sensor | |
| CN101315390A (en) | Magnetoelectricity type passive velocity transducer and manufacturing technology thereof | |
| CN101652647A (en) | Connector unit for a pressure sensor | |
| JP2018504617A (en) | Medium or high voltage coupler | |
| CN203629740U (en) | Pressure transmitter | |
| CN103575448B (en) | Pressure transmitter for locomotive brake system | |
| CN103733353B (en) | Distributor load cell for determining phase current in photovoltaic installations | |
| CN105334367A (en) | Power semiconductor module for integrating magnetic core of current sensor | |
| CN109580987A (en) | A kind of single-axis acceleration sensors device and preparation method | |
| CN212341238U (en) | High-reliability environment-adaptability magnetoelectric rotating speed sensor for engine | |
| CN205139220U (en) | Power semiconductor module of integrated current sensor magnetic core | |
| CN207426220U (en) | It is a kind of that there is the cable intermediate connector of voltage sensor | |
| CN109655637A (en) | A kind of three-axis acceleration sensor device | |
| CN202994177U (en) | Encoder with shielding plate | |
| CN214224383U (en) | Special temperature measuring instrument | |
| CN207280622U (en) | A kind of temperature sensor for magnetic suspension centrifuge | |
| CN204694394U (en) | A kind of pressure test device of strong interference immunity | |
| CN203365524U (en) | Electronic voltage transformer | |
| CN202502896U (en) | Comprehensive instrument transformer | |
| CN212514754U (en) | Open-loop current sensor | |
| CN106872755B (en) | For measuring the monitoring device of low-frequency current in inductive load | |
| CN104297558A (en) | Current measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131127 |