Summary of the invention
Technical problem: at the deficiency that exists in the above-mentioned existing permanent magnet contactor technology, the purpose of this invention is to provide a kind of permanent magnetism contactor operation mechanism, by improvement to existing permanent magnetism contactor operation mechanism, contact power transmission shaft and moving separated structures form unshakable in one's determination have been adopted, realized under the situation of the energy-saving effect that does not change existing permanent magnet contactor, contactor when no power, the automatically function of disjunction of contactor of manually closing.Especially thoroughly solve behind the permanent magnet contactor closing by hand problem of disjunction automatically.Make the separating brake performance of permanent magnet contactor under manual experimental condition reach the effect identical with electromagnetic treadle.Can give full play to simultaneously the energy-saving effect of permanent magnet contactor again.
Technical scheme: described permanent magnetism contactor operation mechanism mainly comprises contact power transmission shaft, fixed contact, moving contact, first spring, moulds the shell support, moves compositions such as iron core, fixed core, second spring, touch spring, coil, permanent magnet and support; When being U type structure, the upper end in moulding the shell support is provided with moving unshakable in one's determination, and the upper end of second spring withstands on moving bottom unshakable in one's determination, and the lower end of second spring withstands on the bottom of moulding in the shell support, and this second spring provides moving counter-force unshakable in one's determination; Fixed core has two parts, is provided with permanent magnet between this two parts fixed core, is respectively equipped with coil on this two parts fixed core, is chained together between two coils, and the top of this two parts fixed core is positioned at the bottom of moulding the shell support; The contact power transmission shaft passes the centre of moulding the shell support and moving iron core, realizes that the contact power transmission shaft separates with moving iron core, is positioned at contact power transmission shaft end and is provided with support, is used for realizing driving the action of contact power transmission shaft when moving iron core moves; First spring housing is used for fixing the contact power transmission shaft in the outside of contact power transmission shaft, and the counter-force of contact power transmission shaft is provided simultaneously; Touch spring is positioned at the top of contact power transmission shaft, and moving contact is positioned at the outer top of contact power transmission shaft, and fixed contact is at the contact power transmission shaft and mould between the shell support.When operating mechanism was two E type structure, its moving unshakable in one's determination and fixed core was E type structure, inlays a rare-earth permanent magnet and constitute compound iron core on the stem of the fixed core of operating mechanism.When being circular configuration, perforate on the moving iron core of operating mechanism to realize contact power transmission shaft and moving unshakable in one's determination separating, is equipped with second spring moulding between shell support upper surface and the moving lower surface unshakable in one's determination of T type of coil, and permanent magnet is embedded on the stem of fixed core.
When contactor was in gate-dividing state, this moment, permanent magnet reached attracting state to the counter-force that the moving unshakable in one's determination suction that produces is not enough to overcome groups of springs, and permanent magnet contactor is in the stable state of separating brake.
When manually closing contactor, because the contact power transmission shaft separates with moving iron core, the contact power transmission shaft moves downward, and moving iron core is in the holding position.Under this state, air gap is bigger between moving iron core and the fixed core, permanent magnet is not enough to overcome the counter-force of second spring to the moving suction that produces unshakable in one's determination and contactor is remained under the attracting state, so after unclamping, the contact power transmission shaft is under the first spring counter-force and the effect of touch spring counter-force, move upward, finally get back to gate-dividing state.
When coil passed to electric current, the suction that the composite magnetic power of permanent magnet magnetic potential and coil magnetic potential produces made iron core begin to move downward greater than the groups of springs counter-force, and this moment, the moving contact power transmission shaft that drives unshakable in one's determination moved downward, thereby made contactor be in "on" position.Under "on" position, air gap is less between moving iron core and the fixed core, and the suction that permanent magnet produces can remain on attracting state with moving iron core and fixed core, reaches the purpose that permanent magnet contactor need not just can remain on attracting state to coil electricity.
Beneficial effect: adopted contact power transmission shaft and moving separated structures form unshakable in one's determination, when the permanent magnet contactor no power, the contactor that manually closes can be realized the automatic brake separating function.The present invention is directed to the deficiency that exists in the above-mentioned existing permanent magnet contactor technology, by improvement to existing permanent magnetism contactor operation mechanism, contact power transmission shaft and moving separated structures form unshakable in one's determination have been adopted, realized under the situation of the energy-saving effect that does not change existing permanent magnet contactor, contactor when no power, the automatically function of disjunction of contactor of manually closing.Especially thoroughly solve behind the permanent magnet contactor closing by hand problem of disjunction automatically.Make the separating brake performance of permanent magnet contactor under manual experimental condition reach the effect identical with electromagnetic treadle.Can give full play to simultaneously the energy-saving effect of permanent magnet contactor again.
Embodiment
The U type version of permanent magnetism contactor operation mechanism of the present invention, shown in (Fig. 1), mainly by contact power transmission shaft 1, fixed contact 2, the first springs 3, mould shell support 4, moving 5, the second springs 6 unshakable in one's determination, coil 7, fixed core 8, permanent magnet 9, moving contact 10, touch spring 11 supports 12 and forms.Its architectural feature is: the upper end that the upper end in moulding shell support 4 is provided with moving 5, the second springs 6 unshakable in one's determination withstands on moving unshakable in one's determination 5 bottom, and the lower end of second spring 6 withstands on the bottom of moulding in the shell support 4, and this second spring 6 provides moving 5 counter-forces unshakable in one's determination; Fixed core 8 has two parts, is provided with permanent magnet 9 between this two parts fixed core 8, is chained together being respectively equipped with on this two parts fixed core 8 between coil 7, two coils 7, and the top of this two parts fixed core 8 is positioned at the bottom of moulding shell support 4; Contact power transmission shaft 1 passes moulds shell support 4 and moving unshakable in one's determination 5 centre, realize that contact power transmission shaft 1 separates with moving unshakable in one's determination 5, be positioned at contact power transmission shaft 1 end and be provided with support 12, be used for realizing when moving unshakable in one's determination 5 move, drive 1 action of contact power transmission shaft, contact power transmission shaft 1 is the main execution unit of automatic brake separating behind the realization closing by hand, and contact power transmission shaft 1 is made by non-magnet material; First spring 3 is enclosed within the outside of contact power transmission shaft 1, is used for fixing contact power transmission shaft 1, and the counter-force of contact power transmission shaft 1 is provided simultaneously; Touch spring 11 is positioned at the top of contact power transmission shaft 1, and moving contact 10 is positioned at the outer top of contact power transmission shaft 1, and fixed contact 2 is at contact power transmission shaft 1 and mould between the shell support 4.When contactor is in gate-dividing state (as Fig. 2), because air gap is bigger, the reaction force that moving unshakable in one's determination 5 suction that produce of 9 pairs of permanent magnets this moment are not enough to overcome first spring 3, second spring 6 and touch spring 11 reaches attracting state, and contactor is in the stable state of separating brake.
When manually closing contactor, because contact power transmission shaft 1 separates with moving unshakable in one's determination 5, contact power transmission shaft 1 moves downward, and moving 5 holding positions unshakable in one's determination are motionless.Under this "on" position (as Fig. 3), because 5 positions moving unshakable in one's determination keep motionless, air gap is bigger between moving iron core 5 and the fixed core 8, the counter-force that moving unshakable in one's determination 5 suction that produce of 9 pairs of permanent magnets are not enough to overcome second spring 6 makes 5 adhesives unshakable in one's determination, after openhanded opening, contact power transmission shaft 1 moves upward under first spring 3 and touch spring 11 counter-force effects, finally gets back to gate-dividing state (as Fig. 2).
As shown in Figure 2, during combined floodgate, coil 7 logical forward currents, the magnetic field that coil 7 produces is consistent with the magnetic direction of permanent magnet 9, the suction that composite magnetic power produces moves downward moving unshakable in one's determination 5 of contactor greater than the reaction force of first spring 3, second spring 6 and touch spring 11, drive contact power transmission shafts 1 by moving unshakable in one's determination 5 motions and move downward, contactor is reached shown in the position (as Fig. 4) of combined floodgate.Under this state, the suction that permanent magnet 9 produces keeps closing a floodgate, and reaches permanent magnet contactor and need not 7 energisings to coil and just can remain on purpose under the attracting state.
As shown in Figure 4, during separating brake, coil 7 logical reverse currents, the magnetic field that coil 7 produces is opposite with the magnetic direction of permanent magnet 9, the suction that composite magnetic power produces is less than the reaction force of first spring 3, second spring 6 and touch spring 11, the counter-force of second spring 6 moves upward moving unshakable in one's determination 5 of contactor, and the counter-force of first spring 3 and touch spring 11 moves upward contact power transmission shaft 1, and contactor is realized separating brake (as Fig. 2).
Shown in two E type versions (as Fig. 5) of permanent magnetism contactor operation mechanism of the present invention, mainly by contact power transmission shaft 1, fixed contact 2, the first springs 3 are moulded shell support 4, moving 5, the second springs 6 unshakable in one's determination, coil 7, fixed core 8, permanent magnet 9, moving contact 10, touch spring 11 supports 12 and forms; It is characterized in that: moving iron core 5 and fixed core 8 are the E type, upper end in moulding shell support 4 is provided with moving unshakable in one's determination 5, the upper end of second spring 6 withstands on moving unshakable in one's determination 5 bottom, and the lower end of second spring 6 withstands on the bottom of moulding in the shell support 4, and this second spring 6 provides moving 5 counter-forces unshakable in one's determination; Fixed core 8 is provided with coil 7, inlays a rare-earth permanent magnet 9 and constitute compound iron core on the stem of fixed core 8; Contact power transmission shaft 1 passes moulds shell support 4 and moving unshakable in one's determination 5 centre, realize that contact power transmission shaft 1 separates with moving iron core 5, be positioned at contact power transmission shaft 1 end and be provided with support 12, be used for realizing when moving unshakable in one's determination 5 move, drive 1 action of contact power transmission shaft, contact power transmission shaft 1 is made by non-magnet material; First spring 3 is enclosed within the outside of contact power transmission shaft 1, is used for fixing contact power transmission shaft 1, and the counter-force of contact power transmission shaft 1 is provided simultaneously; Touch spring 11 is positioned at the top of contact power transmission shaft 1, and moving contact 10 is positioned at the outer top of contact power transmission shaft 1, and fixed contact 3 is at contact power transmission shaft 1 and mould between the shell support 4.When contactor is in gate-dividing state shown in (as Fig. 6), the reaction force that 9 pairs of moving unshakable in one's determination 5 suction that produce of permanent magnet this moment are not enough to overcome first spring 3, second spring 6 and touch spring 11 reaches attracting state, and contactor is in the stable state of separating brake.
When manually closing contactor, because contact power transmission shaft 1 separates with moving unshakable in one's determination 5, contact power transmission shaft 1 moves downward, and moving 5 holding positions unshakable in one's determination are motionless.When manually closing contactor (as Fig. 7), this moment is because 5 positions moving unshakable in one's determination keep motionless, air gap is bigger between moving iron core 5 and the fixed core 8, the counter-force that moving unshakable in one's determination 5 suction that produce of 9 pairs of permanent magnets are not enough to overcome second spring 6 makes 5 adhesives unshakable in one's determination, so after openhanded opening, contact power transmission shaft 1 moves upward under first spring 3 and touch spring 11 counter-force effects, finally gets back to gate-dividing state (as Fig. 6).
As shown in Figure 6, during combined floodgate, coil 7 logical forward currents, the magnetic field that coil 7 produces is consistent with the magnetic direction of permanent magnet 9, the suction that composite magnetic power produces moves downward moving unshakable in one's determination 5 of contactor greater than the reaction force of first spring 3, second spring 6 and touch spring 11, drive contact power transmission shafts 1 by moving unshakable in one's determination 5 motions and move downward, thereby contactor is reached shown in the position (as Fig. 8) of combined floodgate.Under this state, because air gap is smaller, the suction that permanent magnet 9 produces reaches permanent magnet contactor and need not 7 energisings to coil and just can remain on purpose under the attracting state.
As shown in Figure 8, during separating brake, coil 7 logical reverse currents, the magnetic field that coil 7 produces is opposite with the magnetic direction of permanent magnet 9, the suction that composite magnetic power produces is less than the reaction force of first spring 3, second spring 6 and touch spring 11, the counter-force of second spring 6 moves upward moving unshakable in one's determination 5 of contactor, and the counter-force of first spring 3 and touch spring 11 moves upward contact power transmission shaft 1, and contactor is realized separating brake (as Fig. 6).
Shown in the circular configuration form (as Fig. 9) of permanent magnetism contactor operation mechanism of the present invention, mainly comprise contact power transmission shaft 1, fixed contact 2, the first springs 3 are moulded shell support 4, moving 5, the second springs 6 unshakable in one's determination, coil 7, fixed core 8, permanent magnet 9, moving contact 10, touch spring 11 supports 12; It is characterized in that: shell support 4 upper surfaces of moulding at coil 7 are fixed with second spring 6, be supported in moving 5 lower surfaces unshakable in one's determination of T type, this second spring 6 provides moving unshakable in one's determination 5 counter-force, moving unshakable in one's determination 5 insert in the chamber of moulding shell support 4 of coil 7, perforate is used for realizing that contact power transmission shaft 1 separates with moving unshakable in one's determination 5 in moving unshakable in one's determination 5, be positioned at contact power transmission shaft 1 end and be provided with support 12, be used for realizing when moving unshakable in one's determination 5 move, 1 action of drive contact power transmission shaft; Fixed core 8 is provided with coil 7, inlays a permanent magnet 9 and constitute compound iron core on the stem of fixed core 8.First spring 3 is enclosed within the outside of contact power transmission shaft 1, is used for fixing contact power transmission shaft 1, and the counter-force of contact power transmission shaft 1 is provided simultaneously, and contact power transmission shaft 1 is made by non-magnet material; Touch spring 11 is positioned at the top of contact power transmission shaft 1, and moving contact 10 is positioned at the top outside the contact power transmission shaft 1, and the bottom of the top of first spring 3 and moving contact 10 is provided with fixed contact 2.When contactor is in gate-dividing state shown in (as Figure 10), the reaction force that 9 pairs of moving unshakable in one's determination 5 suction that produce of permanent magnet this moment are not enough to overcome first spring 3, second spring 6 and touch spring 11 reaches attracting state, and contactor is in the stable state of separating brake.
When manually closing contactor, because contact power transmission shaft 1 separates with moving unshakable in one's determination 5, contact power transmission shaft 1 moves downward, and moving 5 holding positions unshakable in one's determination are motionless.Under this "on" position (as Figure 11), this moment is because 5 positions moving unshakable in one's determination keep motionless, air gap is bigger between moving iron core 5 and the fixed core 8, the counter-force that moving unshakable in one's determination 5 suction that produce of 9 pairs of permanent magnets are not enough to overcome second spring 6 makes 5 adhesives unshakable in one's determination, so after openhanded opening, contact power transmission shaft 1 moves upward under first spring 3 and touch spring 11 counter-force effects, finally gets back to gate-dividing state (as Figure 10).
As shown in figure 10, during combined floodgate, coil 7 logical forward currents, the magnetic field that coil 7 produces is consistent with the magnetic direction of permanent magnet 9, the suction that composite magnetic power produces moves downward moving unshakable in one's determination 5 of contactor greater than the reaction force of first spring 3, second spring 6 and touch spring 11, drive contact power transmission shafts 1 by moving unshakable in one's determination 5 motions and move downward, thereby contactor is reached shown in the position (as Figure 12) of combined floodgate.Under this state, because air gap is smaller, the suction that permanent magnet 9 produces keeps closing a floodgate, and reaches permanent magnet contactor and need not 7 energisings to coil and just can remain on purpose under the attracting state.
As shown in figure 12, during separating brake, coil 7 logical reverse currents, the magnetic field that coil 7 produces is opposite with the magnetic direction of permanent magnet 9, the suction that composite magnetic power produces is less than the reaction force of first spring 3, second spring 6 and touch spring 11, the counter-force of second spring 6 moves upward moving unshakable in one's determination 5 of contactor, and the counter-force of first spring 3 and touch spring 11 moves upward contact power transmission shaft 1, and contactor is realized separating brake (as Figure 10).
In addition, also can be installed in moving unshakable in one's determination 5 positions different according to actual needs, no longer repeat to give unnecessary details at this with fixed core 8 about the installation site of permanent magnet in the permanent magnetism contactor operation mechanism 9.