CN204905194U - Cross undervoltage protection mechanism from double entry - Google Patents
Cross undervoltage protection mechanism from double entry Download PDFInfo
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- CN204905194U CN204905194U CN201520729931.5U CN201520729931U CN204905194U CN 204905194 U CN204905194 U CN 204905194U CN 201520729931 U CN201520729931 U CN 201520729931U CN 204905194 U CN204905194 U CN 204905194U
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Abstract
The utility model discloses a cross undervoltage protection mechanism from double entry, include the control circuit board who fixes shell, contact group, electromagnetic system, magnet feed pole, connecting rod and be used for sending control signal for electromagnetic system, contact group is including a static contact and a moving contact, electromagnetic system includes solenoid and inserts two magnetic conduction boards locating the solenoid both ends, the magnet feed pole includes the fixing base and inserts two permanent magnet that locate in the fixing base, the fixing base is equipped with the driving lever, and electromagnetic system's magnetic conduction board is located between two permanent magnet of magnet feed pole, the one end and the elasticity conducting strip of connecting rod are connected, and the other end is connected with the driving lever of magnet feed pole. The beneficial effect of the utility model: the utility model discloses auxiliary contact system adopts modular structure, production simple process, and production efficiency is high, owes protect function and automatic re -setting function through electromagnetic mechanism circuit's mistake, and product reliability is high, and market competition is strong.
Description
Technical field
The utility model relates to low-voltage electrical apparatus protection switch technical field, specifically, relates to a kind of Self-recover overvoltage-undervoltage protection mechanism.
Background technology
Chinese patent 2015100068723 discloses a kind of self-replaced type protector mechanism with over-and under-voltage defencive function, comprises shell, fixed contact, moving contact and governor motion, above-mentioned fixed contact is fixed on shell, moving contact is arranged on a bullet tongue arm, above-mentioned bullet tongue arm coordinates with a torque spring and is fixed on an axle of shell, regulating part is by motor belt motor one cam, when circuit is normal, dynamic/static contact contact also provides contact to ensure the reliability of electrical contact by torque spring, when there is overvoltage or under-voltage fault in circuit, make electric machine rotation band moving cam that dynamic/static contact is separated by control signal, cut off the electricity supply and realize defencive function to circuit, remove when line fault and recover normal, make electric machine rotation by control signal thus dynamic/static contact is contacted, connect circuit realiration Self-resetting function.This scenario-frame is complicated, production efficiency is low and regulated by motor and realize reset function and cause that cost is high and small product size large, and the market competitiveness is not high.
Utility model content
The purpose of this utility model is to provide a kind of self-resetting type protection mechanism, to overcome currently available technology above shortcomings.
For realizing above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of Self-recover overvoltage-undervoltage protection mechanism, comprises fixed housing, sets of contacts, electromagnetic system, magnetic transmission bar, connecting rod and the control circuit board for sending control signal to described electromagnetic system;
Described sets of contacts comprises a fixed contact and a moving contact, and described fixed contact is fixed in described fixed housing, is positioned at below described fixed contact and is provided with elastic conducting strip in described fixed housing, described elastic conducting strip is fixed with moving contact;
Described electromagnetic system comprises solenoid and two magnetic conductive boards, and described solenoid centre is provided with square through hole, and described magnetic conductive board is to the two ends being inserted in described square through hole;
Described magnetic transmission bar comprises two permanent magnets and a holder, and two described permanent magnets are fixedly inserted in described holder, and described holder is provided with driving lever, and the magnetic conductive board of described electromagnetic system is located between two permanent magnets of described magnetic transmission bar;
One end of described connecting rod is connected with described elastic conducting strip, and the other end is connected with the driving lever of described magnetic transmission bar.
Further, described holder is also provided with rotating shaft, and described rotating shaft is located in the fixing hole that is provided with in described fixed housing.
Further, the two ends of described connecting rod are equipped with a draw-in groove matched with elastic conducting strip and driving lever.
The beneficial effects of the utility model: the utility model auxiliary contact system adopts modular construction, production technology is simple, and production efficiency is high, and by the mistake of electromagnetic mechanism realizing circuit function under proteciton and auto-reset function, product reliability is high, and the market competitiveness is strong.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation that the Self-recover overvoltage-undervoltage protection mechanism according to the utility model embodiment is closed;
Fig. 2 is the structural representation that the Self-recover overvoltage-undervoltage protection mechanism according to the utility model embodiment disconnects;
Fig. 3 is the structural representation of the electromagnetic system according to the utility model embodiment;
Fig. 4 is the structural representation of the magnetic transmission bar according to the utility model embodiment.
In figure:
1, fixed housing; 2, connecting rod; 3, fixed contact; 4, moving contact; 5, electromagnetic system; 51, solenoid; 511, square through hole; 52, magnetic conductive board; 6, magnetic transmission bar; 61, holder; 611, driving lever; 62, permanent magnet.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of the utility model protection.
As Figure 1-4, a kind of Self-recover overvoltage-undervoltage protection mechanism according to embodiment of the present utility model, comprises fixed housing 1, sets of contacts, electromagnetic system 5, magnetic transmission bar 6, connecting rod 2 and the control circuit board for sending control signal to described electromagnetic system 5;
Described sets of contacts comprises a fixed contact 3 and a moving contact 4, described fixed contact 3 is fixed in described fixed housing 1, be positioned at below described fixed contact 3 and be provided with elastic conducting strip in described fixed housing 1, described elastic conducting strip is fixed with moving contact 4;
Described electromagnetic system 5 comprises solenoid 51 and two magnetic conductive boards 52, and described solenoid 51 centre is provided with square through hole 511, and described magnetic conductive board 52 is to the two ends being inserted in described square through hole 511;
Described magnetic transmission bar 6 comprises two permanent magnets 62 and a holder 61, two described permanent magnets 62 are fixedly inserted in described holder 61, described holder 61 is provided with driving lever 611, and the magnetic conductive board 52 of described electromagnetic system 5 is located between two permanent magnets 62 of described magnetic transmission bar 6;
One end of described connecting rod 2 is connected with described elastic conducting strip, and the other end is connected with the driving lever 611 of described magnetic transmission bar 6.
In a specific embodiment, described holder 61 is also provided with rotating shaft 612, and described rotating shaft 612 is located in the fixing hole that is provided with in described fixed housing 1.
In a specific embodiment, the two ends of described connecting rod 2 are equipped with a draw-in groove matched with elastic conducting strip and driving lever 611.
When specifically using, with reference to figure 1-4, this Self-recover overvoltage-undervoltage protection mechanism in normal operating conditions, control circuit board (not shown) is to electromagnetic system 5 one signal, magnetic conductive board 52 in solenoid 51 is magnetized and the permanent magnet 62 of polarization and adhesive magnetic transmission bar 6, magnetic transmission bar 6 rotates drivening rod 2 upwardly moving contact 4 dynamic/static contact is contacted under the effect of magnetic force; When there is overvoltage or under-voltage fault in circuit; control circuit board (not shown) to electromagnetic system 5 with reverse signal; the magnetic conductive board 52 in solenoid 51 is made to produce reversed polarity; produce reverse magnetic force to magnetic transmission bar 6 makes magnetic transmission bar 6 to rotating backward simultaneously; drivening rod 2 also makes dynamic/static contact be separated; cut off circuit; realize overvoltage/undervoltage defencive function; when circuit recovers normal; control circuit board gives electromagnetic system 5 one reverse signal again; dynamic/static contact is made to contact restore circuit energising, the auto restore facility of realizing circuit.
In sum, by means of technique scheme of the present utility model, the utility model auxiliary contact system adopts modular construction; production technology is simple, and production efficiency is high, by the mistake of electromagnetic mechanism realizing circuit function under proteciton and auto-reset function; product reliability is high, and the market competitiveness is strong.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (3)
1. a Self-recover overvoltage-undervoltage protection mechanism, is characterized in that, comprises fixed housing (1), sets of contacts, electromagnetic system (5), magnetic transmission bar (6), connecting rod (2) and the control circuit board for sending control signal to described electromagnetic system (5);
Described sets of contacts comprises a fixed contact (3) and a moving contact (4), described fixed contact (3) is fixed in described fixed housing (1), be positioned at below described fixed contact (3) and be provided with elastic conducting strip in described fixed housing (1), described elastic conducting strip is fixed with moving contact (4);
Described electromagnetic system (5) comprises solenoid (51) and two magnetic conductive boards (52), and described solenoid (51) centre is provided with square through hole (511), and described magnetic conductive board (52) is to the two ends being inserted in described square through hole (511);
Described magnetic transmission bar (6) comprises two permanent magnets (62) and a holder (61), two described permanent magnets (62) are fixedly inserted in described holder (61), described holder (61) is provided with driving lever (611), and the magnetic conductive board (52) of described electromagnetic system (5) is located between two permanent magnets (62) of described magnetic transmission bar (6);
One end of described connecting rod (2) is connected with described elastic conducting strip, and the other end is connected with the driving lever (611) of described magnetic transmission bar (6).
2. Self-recover overvoltage-undervoltage protection mechanism according to claim 1, is characterized in that, described holder (61) is also provided with rotating shaft (612), and described rotating shaft (612) is located in the fixing hole that is provided with in described fixed housing (1).
3. Self-recover overvoltage-undervoltage protection mechanism according to claim 1, is characterized in that, the two ends of described connecting rod (2) are equipped with a draw-in groove matched with elastic conducting strip and driving lever (611).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729931.5U CN204905194U (en) | 2015-09-18 | 2015-09-18 | Cross undervoltage protection mechanism from double entry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729931.5U CN204905194U (en) | 2015-09-18 | 2015-09-18 | Cross undervoltage protection mechanism from double entry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204905194U true CN204905194U (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520729931.5U Active CN204905194U (en) | 2015-09-18 | 2015-09-18 | Cross undervoltage protection mechanism from double entry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204905194U (en) |
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2015
- 2015-09-18 CN CN201520729931.5U patent/CN204905194U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |