CN201126794Y - Mechanism for operating permanent magnetism contactor - Google Patents
Mechanism for operating permanent magnetism contactor Download PDFInfo
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- CN201126794Y CN201126794Y CNU2007200433840U CN200720043384U CN201126794Y CN 201126794 Y CN201126794 Y CN 201126794Y CN U2007200433840 U CNU2007200433840 U CN U2007200433840U CN 200720043384 U CN200720043384 U CN 200720043384U CN 201126794 Y CN201126794 Y CN 201126794Y
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Abstract
Permanent magnet contactor operating mechanism is arranged with a mobile iron core (5) at the upper end of the plastic shell bracket (4); the upper end of a second spring (6) leans against the lower part of the mobile iron core (5); the lower par of the second spring (6) leans against the lower part of the plastic shell bracket (4); a permanent magnet (9) is arranged between the two parts; the two parts of static iron cores (8) are respectively arranged with coils (7); the upper part of the parts of static iron cores (8) is at the lower part in the plastic shell bracket (4); a contact transmission shaft (1) traverses the middle part of the plastic shell bracket (4) and the mobile iron core (5); the end part of the contact transmission shaft (1) in the plastic shell bracket (4) is arranged with a support (12); a first spring (3) is sleeved outside the contact transmission shaft (1); a contact spring (11) is at the upper part of the contact transmission shaft (1); a mobile contact (10) is at the upper part of the contact transmission shaft (1); a static contact (2) is between the mobile contact (10) and the plastic shell bracket (4).
Description
Technical field
The utility model relates to the low-voltage electrical apparatus field of equipment for power transmission and distribution, and what especially relate to low pressure AC and DC contactor closes, divides the driving mechanism technical field.
Background technology
Traditional electromagnetic treadle, what its driving mechanism adopted is that silicon steel sheet laminated core or soft iron heart distribution magnetic coil are formed.Energising keeps during work, and such mechanism exists that energy consumption is big, noise is big and shortcoming such as contact bounce is many.The permanent magnet mechanism of Chu Xianing is simple in structure with it in recent years, and parts are few, and the reliability advantages of higher causes common concern and obtains constantly improving and innovation.Permanent magnet contactor has that noise is little, and it is little influenced by voltage ripple of power network, has the Remarkable Energy Saving characteristics especially.
The typical structure of existing permanent magnetism contactor operation mechanism mainly contains two E types, U type and circle, mainly comprises permanent magnet, moving iron core, fixed core and coil, also has permanent magnet can place positions such as moving iron core or fixed core.In the patent of having announced, the permanent-magnet manipulating mechanism operation principle is when being in normal operating conditions in the control unit loop, utilizes the pulse current in the coil to produce the magnetic field identical and opposite with magnetic field of permanent magnet in iron core, realizes closing a floodgate and separating brake.The required pulse current of separating brake utilizes that the storage capacitor of no-voltage protection device provides in the control circuit.In actual the use, installation or user of service often need to test the performance of permanent magnet contactor contact, need closing by hand; but the no-voltage protection device in the control circuit does not have energy storage at this moment; in case behind the closing by hand, contactor can not automatically reset, make troubles for actual the use.
The common drawback that the existing permanent magnet contactor patent of announcing exists is, contactor is manually pressed and can not be automatically reset or have auto-reset function but need be to less the keeping electric current and can not realize energy-conservation purpose fully of coil logical when no power.For example the patent No. is 200420065379.6, and patent name is 200420112660.0 for the patent and the patent No. of " a kind of permanent magnet mechanism of lv contactor ", and patent name is the patent of " a kind of permanent magnetism type contactor actuating " etc.
Summary of the invention
Technical problem: at the deficiency that exists in the above-mentioned existing permanent magnet contactor technology, the purpose of this utility model provides 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, be implemented under the situation of the energy-saving effect that does not change existing permanent magnet contactor contactor when no power, the contactor function of disjunction automatically 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.
Description of drawings
Fig. 1 is the U type version schematic diagram of permanent magnet contactor: contact power transmission shaft 1, and 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;
Schematic diagram when Fig. 2 is in gate-dividing state for U type version contactor;
Fig. 3 is the U type version view when manually closing contactor;
Schematic diagram when Fig. 4 is in "on" position for U type version contactor;
Fig. 5 is the two E type version schematic diagrames of permanent magnet contactor;
Schematic diagram when Fig. 6 is in gate-dividing state for two E type version contactors;
Fig. 7 is the two E type version view when manually closing contactor;
Schematic diagram when Fig. 8 is in "on" position for two E type version contactors;
Fig. 9 is a permanent magnet contactor circular configuration form schematic diagram;
Schematic diagram when Figure 10 is in gate-dividing state for circular configuration form contactor;
Figure 11 is the circular configuration form view when manually closing contactor;
Schematic diagram when Figure 12 is in "on" position for circular configuration form contactor.
Embodiment
The U type version of permanent magnetism contactor operation mechanism of the present utility model, 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 utility model, 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 utility model, 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.
Claims (3)
1, a kind of permanent magnetism contactor operation mechanism is characterized in that this operating mechanism comprises contact power transmission shaft (1), fixed contact (2), first spring (3), moulds shell support (4), moves (5), second spring (6) unshakable in one's determination, coil (7), fixed core (8), permanent magnet (9), moving contact (10), touch spring (11), support (12); Wherein, the upper end in moulding shell support (4) is provided with moving (5) unshakable in one's determination, and the upper end of second spring (6) withstands on the bottom of moving (5) unshakable in one's determination, and the lower end of second spring (6) withstands on the bottom of moulding in the shell support (4); Fixed core (8) has two parts, is provided with permanent magnet (9) between these two parts, is respectively equipped with coil (7) on this two parts fixed core (8), 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 the centre of moulding shell support (4) and moving (5) unshakable in one's determination, is positioned at contact power transmission shaft (1) end of moulding shell support (4) and is provided with support (12); First spring (3) is enclosed within the outside of contact power transmission shaft (1), touch spring (11) is positioned at the top of contact power transmission shaft (1), moving contact (10) is positioned at the outer top of contact power transmission shaft (1), and fixed contact (2) is positioned at moving contact (10) and moulds between the shell support (4).
2, permanent magnetism contactor operation mechanism as claimed in claim 1 is characterized in that moving (5) unshakable in one's determination and fixed core (8) are the E type, inlays a rare-earth permanent magnet (9) and constitute compound iron core on the stem on the fixed core (8) of operating mechanism.
3, permanent magnetism contactor operation mechanism as claimed in claim 1 is characterized in that operating mechanism is circular, and the moving iron core (5) of its operating mechanism is the T type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200433840U CN201126794Y (en) | 2007-10-30 | 2007-10-30 | Mechanism for operating permanent magnetism contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200433840U CN201126794Y (en) | 2007-10-30 | 2007-10-30 | Mechanism for operating permanent magnetism contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126794Y true CN201126794Y (en) | 2008-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200433840U Expired - Lifetime CN201126794Y (en) | 2007-10-30 | 2007-10-30 | Mechanism for operating permanent magnetism contactor |
Country Status (1)
| Country | Link |
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| CN (1) | CN201126794Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202181B (en) * | 2007-10-30 | 2010-08-11 | 东南大学 | Permanent magnetism contactor operation mechanism |
-
2007
- 2007-10-30 CN CNU2007200433840U patent/CN201126794Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202181B (en) * | 2007-10-30 | 2010-08-11 | 东南大学 | Permanent magnetism contactor operation mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081001 Effective date of abandoning: 20071030 |