CN102867699A - Microswitch and manufacturing method thereof - Google Patents
Microswitch and manufacturing method thereof Download PDFInfo
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- CN102867699A CN102867699A CN201110191193XA CN201110191193A CN102867699A CN 102867699 A CN102867699 A CN 102867699A CN 201110191193X A CN201110191193X A CN 201110191193XA CN 201110191193 A CN201110191193 A CN 201110191193A CN 102867699 A CN102867699 A CN 102867699A
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Abstract
The invention discloses a microswitch. The microswitch comprises two driving electrodes, two switch electrodes, a power supply and an insulated elastic support, wherein the power supply is electrically connected with the two switch electrodes, the elastic support consists of a substrate, an inclination part and a cantilever, the inclination part extends from the substrate in an inclined manner, and the cantilever extends from the inclination part and is parallel to the substrate, each driving electrode consists of an upper driving electrode and a lower driving electrode corresponding to the upper driving electrode, each switch electrode consists of an upper switch electrode and a lower switch electrode which correspond to each other, the upper switch electrodes and the upper driving electrodes are fixedly arranged on the cantilever, the lower switch electrodes and the lower driving electrodes are fixedly arranged on the substrate, and at least one of the two driving electrodes has magnetism. The microswitch is provided with the driving electrode with magnetism, so that the driving voltage for providing static power can be reduced.
Description
[technical field]
The present invention relates to a kind of micro switch, relate in particular to the common micro switch that drives of a kind of electrostatic force and magnetic force.
[background technology]
Chinese patent discloses No. 1310854 and discloses a kind of micro switch, the DC power supply that it comprises a pair of drive electrode, pair of switches electrode and is electrically connected drive electrode, the electrostatic force control drive electrode that DC power supply provides is with disconnection and the closure that realizes two switches.But, only depend on electrostatic force as actuating force, the driving voltage that needs is larger, and the electric current that micro switch can bear is less, both are difficult for balance.
So, be necessary to design a kind of micro switch to overcome aforementioned deficiency.
[summary of the invention]
Technical problem to be solved by this invention provides a kind of micro switch, and it can reduce driving voltage.
For solving the problems of the technologies described above, a kind of technical method provided by the invention is: a kind of micro switch, it comprises two drive electrodes, two switch electrodes, be electrically connected the power supply of two switch electrodes and the elastic support of insulation, elastic support comprises substrate, the rake that tilts to extend from substrate reaches the cantilever that extends and be parallel to substrate from rake, drive electrode comprises that drive electrode reaches corresponding with it lower drive electrode, switch electrode comprises the upper of correspondence, lower switch electrode, upper switch electrode and upper drive electrode are fixed in cantilever, lower switch electrode and lower drive electrode then are fixed in substrate, and at least one has magnetic in described two drive electrodes.
Another kind of technical scheme is: a kind of manufacture method of micro switch is characterized in that may further comprise the steps: (1) injects mould with the magnetic conductive metal powder; (2) control magnetic conductive metal powder is arranged along mould; (3) adopt ejection formation, thermoplastics is injected mold cavity; (4) demoulding forms elastic support, and the magnetic conductive metal powder forms thin layer at the elastic support upper surface, namely forms above-mentioned upper and lower drive electrode and upper and lower switch electrode; (5) upper and lower drive electrode and upper and lower switch electrode are carried out electroplating processes; (6) upper and lower drive electrode is magnetized processing.
Compared with prior art, micro switch of the present invention has following beneficial effect: micro switch is provided with the magnetic drive electrode of tool, has reduced the driving voltage that electrostatic force is provided.
[description of drawings]
Fig. 1 is the stereogram of micro switch of the present invention;
Fig. 2 is the end view of Fig. 1.
[embodiment]
Fig. 1 and Fig. 2 are micro switch 100 according to the invention.
Please referring to Fig. 1, micro switch 100 comprises two drive electrodes 10, two switch electrodes 20, is electrically connected DC power supply 30 and the elastic support 40 of two drive electrodes.
Please referring to Fig. 1 and Fig. 2, plastic rubber bracket 40 is made by insulating material, adopt ejection formation, it comprises that substrate 41, the rake 42 that tilts to extend from substrate 41 reach from rake extension and the cantilever 43 parallel with substrate, cantilever 43 has free terminal 431, and cantilever can be under external force to the substrate resilient movement.Substrate 41 is tabular, and cantilever then is positioned in the middle of the substrate, and is roughly 1/3 width of substrate, and rake 42 extends to form from the centre of substrate one end.
Switch electrode 20 comprises corresponding upper switch electrode 21 and lower switch electrode 22, and drive electrode 10 comprises corresponding upper drive electrode 11 and lower drive electrode 12.Upper switch electrode 21 and upper drive electrode 11 are fixed in cantilever 43 upsides, and lower switch electrode 22 and lower drive electrode 12 are fixed in substrate 41 upsides.Drive electrode 10 is near rakes 42, and 20 of switch electrodes are away from rake 42.Especially, upper drive electrode 11 is connected as a single entity with upper switch electrode 21 simultaneously moulding, and upper switch electrode 21 1 ends are concordant with the free terminal 431 of cantilever.Lower drive electrode 11 is the U font, just surrounds the end of rake 42.
At least one is through magnetizing processing and having magnetic in the upper and lower drive electrode 11,12, and in most preferred embodiment, drive electrode 10 all is to process through magnetization.The end of upper switch electrode 21 be positioned at lower switch electrode 22 directly over, lower switch electrode both sides also are provided with a pair of grounding electrode 23, grounding electrode 23 also is fixed in the upside of substrate 41.Upper and lower drive electrode 11,12 connects respectively the two ends of DC power supply 30.When connecting DC power supply, upper and lower drive electrode 11,12 forms capacitor, because the effect of electrostatic force, two drive electrodes have the trend that attracts each other, the magnetic force that in addition attracts each other between the upper and lower drive electrode, cause cantilever 43 downward-sloping, finally make switch electrode 21 near lower switch electrode 22, high-frequency signal just can transfer to lower switch electrode 22 from upper switch electrode 21 like this; Disconnect DC power supply, electrostatic force disappears, because elastic force is greater than magnetic force, cantilever 43 restores to the original state, and disconnects upper and lower switch electrode.Below just realized the function of drive electrode control switch.Introduce magnetic force here, required electrostatic force for Closing Switch has just diminished, and also can reduce the voltage for the DC power supply that drives.So also just avoid micro switch load current, voltage excessive, the phenomenon of breakdown electrode occurred.
Switch electrode 20 is made by the magnetic conductive metal material, is generally the metals such as iron, cobalt, nickel.And drive electrode 10 has magnetic, and it can be that the magnetic conductive metal material is made, and also can be that metal magnetic is made, and makes if material is metal magnetic, has then saved above-mentioned magnetized step.With regard to technological angle, each switch adopts identical material (magnetic conductive metal material), drive electrode is magnetized again, and manufacture process can be comparatively simple.
The below introduces the manufacture method of micro switch 100, and it mainly comprises following step: (1) injects mould with the magnetic conductive metal powder; (2) control magnetic conductive metal powder is arranged along mould, and magnet adsorption magnetic conductive metal powder is arranged, and forming each switch electrode, and drive electrode has certain-length; (3) adopt ejection formation, thermoplastic is injected mold cavity; (4) demoulding forms elastic support, and magnetic conductive metal powder (being substrate and cantilever upside) on elastic support forms thin layer, forms above-mentioned upper and lower drive electrode and upper and lower switch electrode; (5) upper and lower drive electrode and upper and lower switch electrode are carried out electroplating processes; (6) upper and lower drive electrode is magnetized processing.
Claims (7)
1. micro switch, it comprises two drive electrodes, two switch electrodes, be electrically connected the power supply of two switch electrodes and the elastic support of insulation, elastic support comprises substrate, the rake that tilts to extend from substrate reaches the cantilever that extends and be parallel to substrate from rake, drive electrode comprises that drive electrode reaches corresponding with it lower drive electrode, switch electrode comprises the upper of correspondence, lower switch electrode, upper switch electrode and upper drive electrode are fixed in cantilever, lower switch electrode and lower drive electrode then are fixed in substrate, it is characterized in that: at least one has magnetic in described two drive electrodes.
2. micro switch as claimed in claim 1 is characterized in that: described two drive electrodes are near rake, and two switch electrodes are then away from rake.
3. micro switch as claimed in claim 2, it is characterized in that: the magnetic drive electrode of described tool is to be made by metal magnetic.
4. micro switch as claimed in claim 2, it is characterized in that: the magnetic drive electrode of described tool is made by the magnetic conductive metal powder, and this drive electrode is processed and is had magnetic through magnetization.
5. such as claim 3 or 4 described micro switch, it is characterized in that: described elastic support is to adopt ejection formation.
6. the manufacture method of a micro switch is characterized in that may further comprise the steps:
(1) the magnetic conductive metal powder is injected mould;
(2) control magnetic conductive metal powder is arranged along mould;
(3) adopt ejection formation, thermoplastics is injected mold cavity;
(4) demoulding forms elastic support, and the magnetic conductive metal powder forms thin layer at the elastic support upper surface, namely forms above-mentioned upper and lower drive electrode and upper and lower switch electrode;
(5) upper and lower drive electrode and upper and lower switch electrode are carried out electroplating processes;
(6) upper and lower drive electrode is magnetized processing.
7. the manufacture method of micro switch as claimed in claim 4, it is characterized in that: described magnetic conductive metal powder utilizes magnet adsorption to control and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110191193.XA CN102867699B (en) | 2011-07-08 | 2011-07-08 | Micro switch and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110191193.XA CN102867699B (en) | 2011-07-08 | 2011-07-08 | Micro switch and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102867699A true CN102867699A (en) | 2013-01-09 |
| CN102867699B CN102867699B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110191193.XA Active CN102867699B (en) | 2011-07-08 | 2011-07-08 | Micro switch and manufacture method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749373A (en) * | 2017-10-24 | 2018-03-02 | 上海交通大学 | A kind of big controlled stroke micro actuator |
| CN116364483A (en) * | 2023-06-02 | 2023-06-30 | 中国工程物理研究院电子工程研究所 | High-impact quartz micro-switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570139A (en) * | 1984-12-14 | 1986-02-11 | Eaton Corporation | Thin-film magnetically operated micromechanical electric switching device |
| CN1118510A (en) * | 1994-06-17 | 1996-03-13 | 阿苏拉布股份有限公司 | Magnetic microcontactor and manufacturing method thereof |
| EP0861640A2 (en) * | 1997-02-28 | 1998-09-02 | Microtronic A/S | A microelectric position sensor |
| CN1310854A (en) * | 1997-08-22 | 2001-08-29 | 泰科电子后勤有限公司 | Micromechanical electrostatic relay and method for the production thereof |
-
2011
- 2011-07-08 CN CN201110191193.XA patent/CN102867699B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570139A (en) * | 1984-12-14 | 1986-02-11 | Eaton Corporation | Thin-film magnetically operated micromechanical electric switching device |
| CN1118510A (en) * | 1994-06-17 | 1996-03-13 | 阿苏拉布股份有限公司 | Magnetic microcontactor and manufacturing method thereof |
| EP0861640A2 (en) * | 1997-02-28 | 1998-09-02 | Microtronic A/S | A microelectric position sensor |
| CN1310854A (en) * | 1997-08-22 | 2001-08-29 | 泰科电子后勤有限公司 | Micromechanical electrostatic relay and method for the production thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749373A (en) * | 2017-10-24 | 2018-03-02 | 上海交通大学 | A kind of big controlled stroke micro actuator |
| CN107749373B (en) * | 2017-10-24 | 2019-06-14 | 上海交通大学 | A kind of big controlled stroke micro actuator |
| CN116364483A (en) * | 2023-06-02 | 2023-06-30 | 中国工程物理研究院电子工程研究所 | High-impact quartz micro-switch |
| CN116364483B (en) * | 2023-06-02 | 2023-08-01 | 中国工程物理研究院电子工程研究所 | High-impact quartz micro-switch |
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| Publication number | Publication date |
|---|---|
| CN102867699B (en) | 2016-03-02 |
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