CN205336248U - Non -contact switch - Google Patents
Non -contact switch Download PDFInfo
- Publication number
- CN205336248U CN205336248U CN201520996193.0U CN201520996193U CN205336248U CN 205336248 U CN205336248 U CN 205336248U CN 201520996193 U CN201520996193 U CN 201520996193U CN 205336248 U CN205336248 U CN 205336248U
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- Prior art keywords
- contact switch
- movable part
- switch according
- coil
- luminous flux
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Abstract
The utility model discloses a control electric tool's non -contact switch, include: the movable part can be followed an orientation and carried out reciprocating motion, the detection part, with movable part separated sets, and through detecting the position of movable part, control electric tool carries out work. The aforesaid is used for controlling electric tool's non -contact switch, through the movable part that detects component part testing and detection part separation, so just avoids traditional touch switch to take place the dislocation easily in the long -time mechanical position in back of using, problem that the state that leads to the electric tool that the switch controlled is made mistakes, but the reliability of improvement electric tool's switch.
Description
Technical field
This utility model relates to field of power tools, particularly relates to a kind of non-contact switch for electric tool。
Background technology
Traditional switch is touch switch, is detected the mechanical location of switch by Mechanical Contact sheet and swept resistance, utilizes and detects this mechanical location, controls duty or the operating rate of electric tool。But such switch is in the process of life-time service, owing to mechanical location is susceptible to dislocation, and then cause the state error switching the electric tool controlled。
In order to improve the reliability of the switch of electric tool, need a kind of novel switch badly to replace traditional touch switch。
Utility model content
Based on this, it is necessary to can cause that switch is susceptible to dislocation for above-mentioned due to touch switch, and then the problem causing the state error of electric tool that switch controls, it is provided that a kind of non-contact switch。
A kind of non-contact switch for controlling electric tool, including: movable part, can move back and forth in a certain direction；Detection part, separately positioned with described movable part, and by detecting the position of described movable part, control electric tool and be operated。
The above-mentioned non-contact switch for controlling electric tool, the movable part separated with detection part is detected by detection part, so just traditional touch switch mechanical location after a long time use is avoided to be susceptible to dislocation, the problem causing the state error of electric tool that switch controls, improving can the reliability of switch of electric tool。
Wherein in an embodiment, described movable part is the medium of conducting pressure can execute stressed motion bar in closed chamber, and described detection part is the pressure of medium of conducting pressure can judge the pressure transducer of position of described motion bar in closed chamber by detecting motion bar。
Wherein in an embodiment, described non-contact switch also includes elastomeric element, is connected to described movable part, for make described movable part in closed chamber can conducting pressure medium apply the laggard horizontal reset of pressure。
Wherein in an embodiment, described elastomeric element one end is connected to described movable part, and the other end is connected to the housing of described closed chamber。
Wherein in an embodiment, described movable part has magnetic part, and described detection part is can judge the electromagnetic transducer of the position of described magnetic part by detecting magnetic field power near described magnetic part。
Wherein in an embodiment, described movable part is the electromagnetic component that can produce electromagnetic field。
Wherein in an embodiment, described electromagnetic component can be magnetic sensitive transistor, magnetodiode or mistor。
Wherein in an embodiment, described detection part is capacitor；Described non-contact switch also includes electrolyte, and part is arranged between the electrode of described capacitor, and described movable part drives described electrolyte to move between the electrode of described capacitor, makes the dielectric volume being between the electrode of capacitor become big or diminish；Described capacitor judges the position of described movable part by detecting the size of electric capacity。
Wherein in an embodiment, described movable part can drive described electrolyte to stay in the optional position between the electrode of described capacitor。
Wherein in an embodiment, described detection part includes: in order to launch the light-beam transmitter of light beam and in order to detect the photoelectric sensor of luminous flux；The luminous flux that described non-contact switch also includes being arranged in the light path of described light-beam transmitter controls device, described movable part can be changed, by shift position, light beam that described light-beam transmitter launches and be controlled the luminous flux of device by luminous flux, and described photoelectric sensor judges the position of described movable part by detecting the luminous flux received。
Wherein in an embodiment, light is incident upon described photoelectric sensor by the mode of direct projection by described light-beam transmitter。
Wherein in an embodiment, described luminous flux controls device and changes, by changing transmission region, the luminous flux that described photoelectric sensor receives。
Wherein in an embodiment, described luminous flux controls device and changes transmission region by differential mode。
Wherein in an embodiment, described luminous flux controls device and changes, from the distance of described light-beam transmitter, the luminous flux that described photoelectric sensor receives by controlling transmission region。
Wherein in an embodiment, described detection part is inductance sensor；Described movable part changes the inductance value of described inductance sensor because of the change of position, and described inductance sensor can pass through to detect inductance value and judge the position of described movable part。
Wherein in an embodiment, described inductance sensor includes first coil and iron core, described core portion is arranged among described first coil, and described movable part can drive described iron core to move in first coil, makes the described core volume being in first coil become big or diminish。
Wherein in an embodiment, described inductance sensor includes: the second coil and tertiary coil, described second coil and the end to end arrangement of tertiary coil；Wedge metal plate is arranged between described second coil and described tertiary coil；
Described movable part can drive the movement of the described wedge metal plate edge vertically length of described second coil or tertiary coil。
Accompanying drawing explanation
Fig. 1 is the first preferred embodiment structural representation of non-contact switch of the present utility model；
Fig. 2 is the second preferred embodiment structural representation of non-contact switch of the present utility model；
Fig. 3 is the third preferred embodiment structural representation of non-contact switch of the present utility model；
Fig. 4 is the 4th preferred embodiment structural representation of non-contact switch of the present utility model；
Fig. 5 is the schematic diagram of the first implementation of the 5th preferred embodiment structure of non-contact switch of the present utility model；
Fig. 6 is the schematic diagram of the second implementation of the 5th preferred embodiment structure of non-contact switch of the present utility model。
Wherein: 100,200,300,400,500. non-contact switch
110. motion bar 120. pressure transducer
130. closed chamber 210. magnetic part
220. electromagnetic transducer 310. capacitor
311. electrode slice 320. electrolyte
411. light-beam transmitter 412. photoelectric sensor
420. luminous flux controls device 510. inductance sensor
511. first coil 512. iron core
513. the second coil 514. tertiary coil
515. wedge metal plate
Detailed description of the invention
Below in conjunction with embodiment, this utility model content is further illustrated。
This utility model discloses a kind of non-contact switch, and this non-contact switch is mainly used in controlling electric tool mode of operation or operating rate etc., mainly includes movable part and detection part。Staff can make this movable part move back and forth along certain orientation；This detection part is mainly for detection of the position of movable part, and this position signalling is changed into the signal of telecommunication, and then control electric tool is operated。In order to better this utility model content be become apparent from, below in conjunction with accompanying drawing, the utility model is described in further detail:
Refer to Fig. 1, this utility model the first preferred embodiment discloses a kind of non-contact switch 100, and wherein, movable part is motion bar 110, detection part is pressure transducer 120。Form a closed chamber 130 between this motion bar 110 and this pressure transducer 120, there is the medium of conducting pressure, for instance for air in this closed chamber 130。This motion bar 110 is because of the mobile pressure that air applying in closed chamber 130 is certain, and then makes the air pressure in closed chamber 130 change。Pressure transducer 120 can detect the air pressure change in closed chamber 130 and judge the position of motion bar 110, and then control motor is operated according to the pattern specified, above-mentioned non-contact switch 100 also includes elastomeric element (not shown), elastomeric element one end is connected to described motion bar 110, and the other end is connected on the housing of closed chamber 130, for make described movable part in closed chamber can conducting pressure medium apply the laggard horizontal reset of pressure。
Refer to Fig. 2, this utility model the second preferred embodiment discloses a kind of non-contact switch 200, movable part has magnetic part 210, movable part drives magnetic part 210 to move, this magnetic part 210 can be permanent magnet, be alternatively electromagnetic component, the surrounding of magnetic part 210 can produce the magnetic field of some strength, and usually, the intensity in this magnetic field is directly proportional to the distance from magnetic part 210。Namely from magnetic part 210 more close to, the intensity in magnetic field is more strong；From magnetic part 210 more away from, the intensity in magnetic field is more weak。Detection part is electromagnetic transducer 220, this electromagnetic transducer 220 can judge the position of magnetic part by detecting magnetic part 210 surrounding magnetic field power, and this position signalling is changed into control motor of the electrical signal is operated, specifically, operator controls above-mentioned magnetic part 210 by movable part and moves, make it closer or far from electromagnetic transducer, above-mentioned non-contact switch 200 also includes limited block, when magnetic part 210 moves to certain position, limited block is in order to be defined in this position by magnetic part 210, until operator operates this non-contact switch 200 again, make movable part again control magnetic part 210 to move。
Above-mentioned non-contact switch 200 can also is that movable part controls electromagnetic transducer 220 and moves, and magnetic part is fixed near electromagnetic transducer 220。This is not made restriction by above-mentioned non-contact switch 200, as long as reaching this utility model purpose。
Refer to Fig. 3, this utility model third preferred embodiment discloses a kind of non-contact switch 300, and wherein, detection part is a capacitor 310, and this capacitor 310 has at least one pair of electrode slice 311 being oppositely arranged。This movable part has electrolyte 320, and electrolyte 320 is positioned partially or entirely in this between electrode slice 311。Movable part drives electrolyte 320 to move between electrode slice 311, change in volume according to the electrolyte 320 between electrode slice 311, and then make the capacitance of capacitor 310 change, capacitor judges the position of described movable part according to the size of the electric capacity of detection, specifically, operator controls above-mentioned electrolyte 320 by movable part and moves, and then control the electrolyte 320 volume between electrode slice 311, electrolyte 320 can stay in the optional position between the electrode of described capacitor 310, so just can realize regulating without gear。
Above-mentioned non-contact switch 300 also includes limited block, when electrolyte 320 moves to certain position, limited block is in order to be defined in this position by electrolyte 320, until operator operates this non-contact switch 300 again, makes movable part again control electrolyte 320 and moves。
Refer to Fig. 4, this utility model the 4th preferred embodiment discloses a kind of non-contact switch 400, wherein detection part includes light-beam transmitter 411 and photoelectric sensor 412, this light-beam transmitter 411 launches a light beam to photoelectric sensor 412, this light beam can direct projection to photoelectric sensor 412, photoelectric sensor 412 is for detecting the intensity of this light beam, luminous flux controls device 420 and is arranged in the light path that light-beam transmitter 411 launches light beam to photoelectric sensor 412, movable part can pass through to control luminous flux and control device 420, change described light-beam transmitter 411 and launch the luminous flux to photoelectric sensor 412, specifically, this luminous flux controls device 420 and has transparent area 421 and shading region 422, transparent area 421 in order to light beam that light-beam transmitter 411 is launched from the one side of light barrier 420 thoroughly to another side, contrary shading region 422 is in order to block the light of light-beam transmitter injection, luminous flux controls device 420 and changes transmission region by differential mode, thus changing light-beam transmitter 411 to launch the luminous flux to photoelectric sensor 412, photoelectric sensor 412 judges the position of movable part by detecting luminous flux, and then control electric tool is operated in the mode of operation specified。
Except the embodiment changing luminous flux above by differential fashion, above-mentioned movable part can drive the spacing that luminous flux control device 420 changes transmission region and light-beam transmitter 411 to realize changing the luminous flux received by photoelectric sensor 412, specifically, when luminous flux controls the transmission region of device 420 from time close to light-beam transmitter 411, luminous flux through transmission region is more, the received luminous flux of photoelectric sensor 412 also more。On the contrary, when luminous flux control the transmission region of device 420 from light-beam transmitter 411 farther out time, the luminous flux through transmission region is less, the received luminous flux of photoelectric sensor 412 also less。So, photoelectric sensor just can judge the position of described movable part by detecting luminous flux。
For making the result that above-mentioned photoelectric sensor 412 detects more accurate, above-mentioned light-beam transmitter 411 and photoelectric sensor 412 are arranged in the space completely isolated with ambient light。
Refer to Fig. 5 and Fig. 6, this utility model the 5th preferred embodiment discloses a kind of non-contact switch 500, wherein, detection part is inductance sensor 510, the position change of movable part and change the inductance value of described inductance sensor 410, described inductance sensor 510 can pass through to detect its inductance value judge the position of movable part。
Concrete, including first coil 511 and iron core 512 with reference to this inductance sensor 510 of Fig. 5, iron core 512 part is arranged among coil 511, and movable part can drive iron core 512 to move in first coil 511。Due to the movement of iron core 512, the volume of the iron core 512 being arranged in first coil 511 changes, and then makes the detected inductance value of inductance sensor 510 change, and then can judge, according to the change of inductance value, the position that movable part is positioned at。
The present embodiment is except above-mentioned implementation, also there is another implementation: refer to Fig. 6, inductance sensor 510 includes the second coil 513 and tertiary coil 514, this second coil 513 and tertiary coil 514 ending connect arrangement, wedge metal plate 515 arranges between the second coil 513 and tertiary coil 514, movable part can drive wedge metal plate 515 to move along the length direction being perpendicular to described second coil 513 or tertiary coil 514, movement due to wedge metal plate 515, the detected inductance value making inductance sensor 515 changes, and then can judge, according to the change of inductance value, the position that movable part is positioned at。
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics is absent from contradiction, all it is considered to be the scope that this specification is recorded。
Embodiment described above only have expressed several embodiments of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope。It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model。Therefore, the protection domain of this utility model patent should be as the criterion with claims。
Claims (17)
1. the non-contact switch for electric tool, it is characterised in that including:
Movable part, can move back and forth along predetermined direction；
Detection part, separately positioned with described movable part, and by detecting the position of described movable part, control electric tool and be operated。
2. non-contact switch according to claim 1, it is characterized in that, described movable part is the medium of conducting pressure can execute stressed motion bar in closed chamber, and described detection part is the pressure of medium of conducting pressure can judge the pressure transducer of position of described motion bar in closed chamber by detecting motion bar。
3. non-contact switch according to claim 2, it is characterized in that, described non-contact switch also includes elastomeric element, is connected to described movable part, for make described movable part in closed chamber can conducting pressure medium apply the laggard horizontal reset of pressure。
4. non-contact switch according to claim 3, it is characterised in that described elastomeric element one end is connected to described movable part, and the other end is connected to the housing of described closed chamber。
5. non-contact switch according to claim 1, it is characterised in that described movable part has magnetic part, described detection part is can judge the electromagnetic transducer of the position of described magnetic part by detecting magnetic field power near described magnetic part。
6. non-contact switch according to claim 5, it is characterised in that described movable part is the electromagnetic component that can produce electromagnetic field。
7. non-contact switch according to claim 6, it is characterised in that described electromagnetic component is magnetic sensitive transistor, magnetodiode or mistor。
8. non-contact switch according to claim 1, it is characterised in that
Described detection part is capacitor；
Described non-contact switch also includes electrolyte, and part is arranged between the electrode of described capacitor, and described movable part drives described electrolyte to move between the electrode of described capacitor, makes the dielectric volume being between the electrode of capacitor become big or diminish；
Described capacitor judges the position of described movable part by detecting the size of electric capacity。
9. non-contact switch according to claim 8, it is characterised in that described movable part can drive described electrolyte to stay in the optional position between the electrode of described capacitor。
10. non-contact switch according to claim 1, it is characterised in that
Described detection part includes: in order to launch the light-beam transmitter of light beam and in order to detect the photoelectric sensor of luminous flux；
The luminous flux that described non-contact switch also includes being arranged in the light path of described light-beam transmitter controls device, described movable part can be changed, by shift position, light beam that described light-beam transmitter launches and be controlled the luminous flux of device by luminous flux, and described photoelectric sensor judges the position of described movable part by detecting the luminous flux received。
11. non-contact switch according to claim 10, it is characterised in that light is incident upon described photoelectric sensor by the mode of direct projection by described light-beam transmitter。
12. non-contact switch according to claim 10, it is characterised in that described luminous flux controls device and changes, by changing transmission region, the luminous flux that described photoelectric sensor receives。
13. non-contact switch according to claim 12, it is characterised in that described luminous flux controls device and changes transmission region by differential mode。
14. non-contact switch according to claim 12, it is characterised in that described luminous flux controls device and changes, from the distance of described light-beam transmitter, the luminous flux that described photoelectric sensor receives by controlling transmission region。
15. non-contact switch according to claim 1, it is characterised in that described detection part is inductance sensor；Described movable part changes the inductance value of described inductance sensor because of the change of position, and described inductance sensor can pass through to detect inductance value and judge the position of described movable part。
16. non-contact switch according to claim 15, it is characterized in that, described inductance sensor includes first coil and iron core, described core portion is arranged among described first coil, described movable part can drive described iron core to move in first coil, makes the described core volume being in first coil become big or diminish。
17. non-contact switch according to claim 15, it is characterised in that
Described inductance sensor includes: the second coil and tertiary coil, described second coil and the end to end arrangement of tertiary coil；Wedge metal plate is arranged between described second coil and described tertiary coil；
Described movable part can drive the movement of the described wedge metal plate edge vertically length of described second coil or tertiary coil。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996193.0U CN205336248U (en) | 2015-12-03 | 2015-12-03 | Non -contact switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996193.0U CN205336248U (en) | 2015-12-03 | 2015-12-03 | Non -contact switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205336248U true CN205336248U (en) | 2016-06-22 |
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ID=56211149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520996193.0U Active CN205336248U (en) | 2015-12-03 | 2015-12-03 | Non -contact switch |
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| CN (1) | CN205336248U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849930A (en) * | 2015-12-03 | 2017-06-13 | 苏州宝时得电动工具有限公司 | Non-contact switch |
| CN110249529A (en) * | 2016-12-16 | 2019-09-17 | Fogale 纳米技术公司 | For close and/or contact and pressure the device and method relative to detection Surface testing object |
-
2015
- 2015-12-03 CN CN201520996193.0U patent/CN205336248U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849930A (en) * | 2015-12-03 | 2017-06-13 | 苏州宝时得电动工具有限公司 | Non-contact switch |
| CN110249529A (en) * | 2016-12-16 | 2019-09-17 | Fogale 纳米技术公司 | For close and/or contact and pressure the device and method relative to detection Surface testing object |
| CN110249529B (en) * | 2016-12-16 | 2022-10-11 | Fogale 纳米技术公司 | Device and method for detecting the approach and/or contact and pressure of an object with respect to a detection surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |