CN202434427U - Permanent magnet bi-stable micro-relay - Google Patents
Permanent magnet bi-stable micro-relay Download PDFInfo
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- CN202434427U CN202434427U CN2011204353894U CN201120435389U CN202434427U CN 202434427 U CN202434427 U CN 202434427U CN 2011204353894 U CN2011204353894 U CN 2011204353894U CN 201120435389 U CN201120435389 U CN 201120435389U CN 202434427 U CN202434427 U CN 202434427U
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- permanent magnet
- magnet
- cantilever beam
- contact
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Abstract
The utility model belongs to the technical field of electrical control components, and mainly relates to a permanent magnet bi-stable micro-relay. The micro-relay is composed of a permanent magnet bi-stable mechanism and driving mechanisms. The permanent magnet bi-stable mechanism comprises a permanent magnet, a lower magnetic loop, contacts, a cantilever beam, a torsion beam, a pedestal and externally-connected electrodes. The driving mechanisms are arranged on two sides of the permanent magnet bi-stable mechanism. The permanent magnet bi-stable micro-relay is simple in structure, convenient in manufacture, low in power consumption and rapid in speed, is easily compatible, is suitable for popularization and application, etc.
Description
Technical field:
The utility model belongs to electric control components and parts technical field, mainly relates to a kind of relay, particularly a kind of permanent-magnet bistable microrelay.
Background technology:
Relay is a kind of electric control device, and it has the interactive relationship between control system (claim not only input circuit) and the Be Controlled system (but also claiming output loop).Usually be applied in the control circuit of automation, it is actually a kind of " automatic switch " that goes to control big electric current running with little electric current, so in circuit, play effects such as automatic adjusting, safeguard protection, change-over circuit.
When reaching setting, relay makes controlled output circuit conducting or disconnection when input variable (like voltage, electric current, temperature etc.).Input variable can be divided into electric parameters (like electric current, voltage, frequency, power etc.) and non-electric quantity (like temperature, pressure, speed etc.) two big classes.Advantages such as relay has that action is fast, working stability, long service life, volume are little are applied in the technical fields such as electric power protection, automation, motion, remote control, measurement, communication, information processing and electromechanical integration widely.Along with greatly developing of space flight and microsatellite technology, more and more urgent for the requirement of relay small size, low-power consumption, conventional means of relay can't satisfy these requirements.
In recent years, (Micro Electro Mechanical system, MEMS) new type of relay of greatly developing and be applied as of technology provides a kind of new direction to MEMS.Based on the relay of MEMS technology compare with traditional relay have volume little, low in energy consumption, remove that impedance is low, switching speed fast, be easy to advantages such as integrated, receive increasing concern.
But all there are some problems in the microrelay of several kinds of type of drive commonly used at present.The encapsulation of liquid-type microrelay is bigger with the control difficulty, and development slowly relatively always.The driving voltage of electroheating type microrelay is not high, and structure processing is comparatively simple, but this type of drive power consumption is big, and speed is slow, and is subject to the influence of ambient temperature, is not suitable in the adverse circumstances such as space flight.The driving voltage of electromagnetic type microrelay only needs 5V, and is compatible with circuit common, but its process structure more complicated, never ripe product occurs.Though electrostatic micro-relay is simple in structure easy to process, its driving voltage is too high, and is incompatible with the operating voltage (5V) of circuit common, because the too small contact contact pressure that causes of area of contact point is very little, hampers its large-scale application always.
Summary of the invention:
Goal of the invention:
The utility model has proposed a kind of permanent-magnet bistable microrelay to the variety of issue that exists in the above-mentioned prior art, has overcome above-mentioned defective.
Technical scheme:
A kind of permanent-magnet bistable microrelay is characterized in that: this microrelay is made up of permanent-magnet bistable mechanism and driving mechanism; Permanent-magnet bistable mechanism comprises: permanent magnet, down magnetic loop, contact, cantilever beam, turn round beam, pedestal and external electrode; Driving mechanism is arranged on the both sides of permanent-magnet bistable mechanism.
Said permanent magnet and pedestal are arranged on down on the magnetic loop, on pedestal, are provided with cantilever beam and turn round beam, and the contact is arranged on the two ends of cantilever beam.
Said contact is by cantilever beam and turn round the top that the beam support floats on external electrode lead-in wire port.
Said cantilever beam with turn round that beam is vertical to be provided with.
Also be provided with micropore on the said cantilever beam.
Said driving mechanism is arranged on the top, contact at the two ends of cantilever beam.
Said external electrode is set to four.
Advantage and effect:
The utility model provides a kind of permanent-magnet bistable microrelay, have following advantage:
(1), volume is little, simple in structure, easy to make, cost is low.
(2), low in energy consumption, speed is fast, it is little to be affected by the external environment.
(3), process structure is simple, be easy to and circuit common compatible.
(4), adopt the conducting mechanism of bistable mechanism based on the metal to metal contact, be that metal directly contacts during the closing of contact, contact resistance is little, it is low to insert loss; The contact is air-gap insulated when breaking off, and offresistance is big, cuts off effective.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the cantilever beam structure sketch map.
Description of reference numerals:
1, permanent magnet; 2, following magnetic loop; 3, contact; 4, cantilever beam; 5, turn round beam; 6, pedestal; 7, external electrode; 8, driving mechanism; 9, micropore.
Embodiment:
Below in conjunction with accompanying drawing the utility model is done further explanation:
The utility model provides a kind of permanent-magnet bistable microrelay, and is as shown in fig. 1, it is characterized in that: this microrelay is made up of permanent-magnet bistable mechanism and driving mechanism 8; Permanent-magnet bistable mechanism comprises: permanent magnet 1, down magnetic loop 2, contact 3, cantilever beam 4, turn round beam 5, pedestal 6 and external electrode 7; Driving mechanism 8 is arranged on the both sides of permanent-magnet bistable mechanism.Wherein, following magnetic loop 2, contact 3, cantilever beam 4, turn round beam 5, pedestal 6 is soft magnetic material and processes.
Said permanent magnet 1 is arranged on down on the magnetic loop 2 with pedestal 6, on pedestal 6, is provided with cantilever beam 4 and turns round beam 5, turns round beam 5 one ends and is arranged on that the other end is arranged on the permanent magnet 1 on the pedestal 6, and contact 3 is arranged on the two ends of cantilever beam 4.
Said contact 3 by cantilever beam 4 with turn round beam 5 and support and float on the external electrode 7 lead-in wire ports and the top of magnetic loop 2 down.
Said cantilever beam 4 with turn round beam 5 vertical settings, and be arranged on the top of turning round beam 5.
As shown in Figure 2, said cantilever beam 4 is provided with micropore 9, and the benefit that is provided with like this is the weight that can alleviate cantilever beam, thereby reduces the absorption affinity that keeps stable state required.
Said driving mechanism 8 is arranged on 3 tops, contact at the two ends of cantilever beam 4; Can be communicated with the lead-in wire port of external electrode 7; Driving mechanism can be selected the driver that is fit to according to actual needs, because drive displacement is little, general microdrive all can be compatible with permanent-magnet bistable mechanism.
Said external electrode 7 can be according to the actual conditions setting, and effect is better when being set to four.
The operation principle of the utility model is following:
Extraneous input current is given driving mechanism 8; Thereby driving mechanism 8 presses down the external circuits of closed this side; After this, the closure state of external circuits can be able to keep through this permanent-magnet bistable mechanism, therefore; Extraneous input current can remove, and an other side of this microrelay can play servo action equally.
When the contact of a side 3 driven-mechanisms 8 lifted or depress, 3 of the contacts of opposite side descended simultaneously or rise; When the contact 3 that descends contacts with following magnetic loop 2; Then formed the closed magnetic circuit of " permanent magnet-turn round beam-cantilever beam-contact-following magnetic loop-permanent magnet " in this permanent-magnet bistable mechanism, wherein magnetic force can keep the sinking state of this contact 3 always and need not driving mechanism 8 continuous outputs.The contact 3 that descends can be communicated with external electrode 7 simultaneously, forms the on-state of relay.At this moment; Magnetic force provides the pressure of contact 3 contacts; Make the access resistance of relay maintain a lower level,, only need to give 8 one pulse currents of driving mechanism if cut off the circuit of a certain side; The contact 3 of lifting this side cantilever beam 4 or pressing down cantilever beam 4 these sides of opposite side will be lifted, and this circuit promptly is cut off; And the contact 3 of opposite side can press down simultaneously and form and aforesaid magnetic loop and electric loop, thereby has realized that no power consumption attitude keeps.
This permanent-magnet bistable microrelay of the utility model combines the advantage of several kinds of microrelays, can improve the shortcoming of traditional relay, is suitable for applying.
Claims (7)
1. permanent-magnet bistable microrelay is characterized in that: this microrelay is made up of permanent-magnet bistable mechanism and driving mechanism (8); Permanent-magnet bistable mechanism comprises: permanent magnet (1), down magnetic loop (2), contact (3), cantilever beam (4), turn round beam (5), pedestal (6) and external electrode (7); Driving mechanism (8) is arranged on the both sides of permanent-magnet bistable mechanism.
2. permanent-magnet bistable microrelay according to claim 1 is characterized in that: said permanent magnet (1) and pedestal (6) are arranged on down on the magnetic loop (2), on pedestal (6), are provided with cantilever beam (4) and turn round beam (5), and contact (3) are arranged on the two ends of cantilever beam (4).
3. permanent-magnet bistable microrelay according to claim 1 and 2 is characterized in that: said contact (3) are by cantilever beam (4) and turn round the top that beam (5) support floats on external electrode (7) lead-in wire port.
4. permanent-magnet bistable microrelay according to claim 1 and 2 is characterized in that: said cantilever beam (4) with turn round the vertical setting of beam (5).
5. permanent-magnet bistable microrelay according to claim 4 is characterized in that: also be provided with micropore (9) on the said cantilever beam (4).
6. permanent-magnet bistable microrelay according to claim 1 is characterized in that: said driving mechanism (8) is arranged on the top, contact (3) at the two ends of cantilever beam (4).
7. permanent-magnet bistable microrelay according to claim 1 is characterized in that: said external electrode (7) is set to four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204353894U CN202434427U (en) | 2011-11-07 | 2011-11-07 | Permanent magnet bi-stable micro-relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204353894U CN202434427U (en) | 2011-11-07 | 2011-11-07 | Permanent magnet bi-stable micro-relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202434427U true CN202434427U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204353894U Expired - Fee Related CN202434427U (en) | 2011-11-07 | 2011-11-07 | Permanent magnet bi-stable micro-relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202434427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158512A (en) * | 2015-04-08 | 2016-11-23 | 北京大学 | A kind of metal molybdenio microrelay and preparation method thereof |
-
2011
- 2011-11-07 CN CN2011204353894U patent/CN202434427U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158512A (en) * | 2015-04-08 | 2016-11-23 | 北京大学 | A kind of metal molybdenio microrelay and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20121107 |