CN104810128A - High-thrust electromagnet for low-voltage apparatus - Google Patents
High-thrust electromagnet for low-voltage apparatus Download PDFInfo
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- CN104810128A CN104810128A CN201510218302.0A CN201510218302A CN104810128A CN 104810128 A CN104810128 A CN 104810128A CN 201510218302 A CN201510218302 A CN 201510218302A CN 104810128 A CN104810128 A CN 104810128A
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- iron core
- low
- closed shell
- static iron
- push bar
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Abstract
The invention relates to a high-thrust electromagnet for a low-voltage apparatus. A closed shell is mounted on a base of the low-voltage apparatus; a magnet exciting coil is mounted in the closed shell; a movable iron core and a static iron core are arranged in the magnet exciting coil; a magnetic conducting end cover is mounted on one side of the closed shell; the movable iron core penetrates through the magnetic conducting end cover; the static iron core is fixedly mounted on the other side wall of the closed shell; the movable iron core is fixedly connected with one end of a moveable push rod; the other end of the moveable push rod penetrates through an inner hole of the static iron core and is hinged to a connecting rod; a resetting spring sleeves the moveable push rod; the two ends of the resetting spring are respectively jacked between the movable iron core and the static iron core; a sliding sleeve sleeves in a skeleton of the magnet exciting coil; an outer circle of the movable iron core sleeves in the sliding sleeve in a sliding form; the moveable push rod penetrates through the inner hole of the static iron core in a sliding form. The high-thrust electromagnet for the low-voltage apparatus has the advantages of higher working efficiency, excellent stability and longer service life.
Description
Technical field
The present invention relates to a kind of electromagnet, particularly a kind of high-thrust electromagnet for low-voltage electrical apparatus, belongs to Low Voltage Electrical Apparatus.
Background technology
Electromagnet is a kind of widely used electric elements, and be mainly used to as dynamical element or executive component, its operation principle is the magnetic field utilizing hot-wire coil to produce, and the permeability magnetic material be opposite in coil produces and attracts, thus reaches the object of work.Because dynamic iron core will move in portion in coil, so must and the coil rack of coil inside is all insulating material processes, the corresponding deformation considering the too high rear generation of its temperature rise, therefore very large gap can be reserved when designing between iron core and coil, this gap can cause electromagnetic field to effective attraction of iron core, reduces the operating efficiency of electromagnet.
For the electromagnet in low-voltage electrical apparatus, in use there will be after magnet exciting coil is energized for a long time causes coil rack to produce deformation under coil temperature action because coil temperature rise is too high, cause coil rack surface irregularity, the normal operation of the dynamic iron core of impact, serious even can block dynamic iron core.
The dynamic iron core of existing big orifice electromagnet because of weight larger, and core material generally all adopts electrical pure iron material, hardness is very low, because its impact by mounting means can cause iron core weight to be loaded into the side of coil latus rectum tube wall, very easily wearing and tearing are caused to dynamic iron core, affect the F-S curve function of electromagnet.
Summary of the invention
In order to the operating efficiency overcoming the electromagnet in existing low-voltage electrical apparatus is lower, less stable, useful life shorter deficiency, the invention provides a kind of operating efficiency higher, have good stability, the high-thrust electromagnet for low-voltage electrical apparatus that useful life is longer.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of high-thrust electromagnet for low-voltage electrical apparatus, comprise closed shell, dynamic iron core, static iron core, movable push bar, back-moving spring, magnetic conduction end cap and magnet exciting coil, described closed shell is arranged on the base of low-voltage electrical apparatus, in described closed shell, magnet exciting coil is installed, in described magnet exciting coil, dynamic iron core and static iron core are set, magnetic conduction end cap is installed in the side of described closed shell, described dynamic iron core is through described magnetic conduction end cap, described static iron core is fixedly mounted on the another side of described closed shell, described dynamic iron core is fixedly connected with one end of movable push bar, the other end of described movable push bar through described static iron core endoporus and with the rod hinge connection of low-voltage electrical apparatus, described movable push bar is set with described back-moving spring, and the two ends of described back-moving spring withstand between dynamic iron core and static iron core respectively,
Suit sliding sleeve in the skeleton of described magnet exciting coil, the outer ring of described dynamic iron core is sleeved in described sliding sleeve slidably, and described movable push bar is slidably through the endoporus of described static iron core.
Further, between described solenoid side and magnetic conduction end cap, damping washer is set.
Further again, the outer ring suit sliding guide sleeve of described dynamic iron core, described sliding guide sleeve is sleeved in described sliding sleeve slidably.
Further, the endoporus of described static iron core installs sliding shaft sleeve, and described movable push bar is slidably through described sliding shaft sleeve.
Beneficial effect of the present invention is mainly manifested in: 1) owing to having set up sliding sleeve, by the shape control of coil rack in sliding sleeve, being slidably matched between sliding sleeve and dynamic iron core can not be affected, therefore, gap between sliding sleeve and dynamic iron core can be very little, reduce leakage field, operating efficiency is higher, has good stability; 2) low-friction coefficient, wear and tear less, useful life is longer.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the high-thrust electromagnet for low-voltage electrical apparatus.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the schematic diagram of housing.
Fig. 4 is the schematic diagram of static iron core.
Fig. 5 is the cooperation schematic diagram of iron core and static iron core.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
With reference to Fig. 1 ~ Fig. 5, a kind of high-thrust electromagnet for low-voltage electrical apparatus, comprise closed shell 9, dynamic iron core 2, static iron core 12, movable push bar 11, back-moving spring 10, magnetic conduction end cap 5 and magnet exciting coil 7, described closed shell 9 is arranged on the base of low-voltage electrical apparatus, in described closed shell 9, magnet exciting coil 7 is installed, in described magnet exciting coil 7, dynamic iron core 2 and static iron core 12 are set, magnetic conduction end cap 5 is installed in the side of described closed shell 9, described dynamic iron core 2 is through described magnetic conduction end cap 5, described static iron core 12 is fixedly mounted on the another side of described closed shell 9, described dynamic iron core 2 is fixedly connected with one end of movable push bar 11, the other end of described movable push bar 11 is hinged with the connecting rod 16 of low-voltage electrical apparatus through the endoporus of described static iron core, described movable push bar 11 is set with described back-moving spring 10, and the two ends of described back-moving spring 10 withstand between dynamic iron core 2 and static iron core 12 respectively,
Suit sliding sleeve 8 in the skeleton of described magnet exciting coil 7, the outer ring of described dynamic iron core 2 is sleeved in described sliding sleeve 8 slidably, and described movable push bar 11 is slidably through the endoporus of described static iron core 12.
Further, between described solenoid 7 side and magnetic conduction end cap 5, damping washer 6 is set.
Further again, the outer ring suit sliding guide sleeve 3 of described dynamic iron core 2, described sliding guide sleeve 3 is sleeved in described sliding sleeve 8 slidably.
Further, the endoporus of described static iron core 12 installs sliding shaft sleeve 13, and described movable push bar 11 is slidably through described sliding shaft sleeve 13.
Fixed by location axle pin 1 between described movable push bar 11 and described dynamic iron core 2.Described dynamic iron core 2 has spring eye towards static iron core side, and one end of described back-moving spring 10 contacts in the bottom of described spring eye.The described other end of movable push bar 11 is connected by bearing pin 15 and elastic cylindrical pin 17 with the connecting rod of low-voltage electrical apparatus.Be provided with aperture in described closed shell 9, the skeleton end face of described solenoid 7 is provided with boss, and described boss is positioned in described aperture.
In the present embodiment, the effect of location axle pin 1: prevent from producing displacement between static iron core and movable push bar, and produce displacement between anti-stop iron core 2 and sliding guide sleeve 3;
Dynamic iron core 2, produces electromagnetic attraction after solenoid energising, and iron core and its fixing movable push bar can be made to overcome action of reset spring power along the adhesive of static iron core direction;
The effect of sliding guide sleeve 3: riveting is contained in the outer ring of dynamic iron core, because core material is the electrical pure iron of high permeability, its hardness is very low, easily wear and tear after long-time action, therefore a smooth good guide pin bushing of anti-wear performance is filled in the riveting of dynamic iron core surrounding, when making its action, coefficient of friction reduces, and increases product useful life;
Firm banking 4 is used for fixing whole electromagnet, upper end and closed shell welding;
Magnetic conduction end cap 5 is for closing whole closed shell, and making solenoid four thorough is the enclosed construction of high permeability, improves electromagnet electromagnetic attraction, is riveted to the inside closed shell outer to fix and installs magnetic conduction end cap, end cap is not come off after assembling;
Damping washer 6 prevents coil play between closed shell and magnetic conduction end cap;
Sliding sleeve 8 is sleeved in the coil rack in the middle of solenoid 7, and inner wall surface is highly polished, and the sliding guide sleeve moving iron core surface suit during iron core action can be made to contact with it, and material is also stainless.Because in prior art, coil rack is insulating material, and its hardness is very low, and after long-term action, plastics will wear and tear at once, reduces electromagnet life-span and safety in utilization; The shape control of coil rack in sliding sleeve, can not be affected being slidably matched between sliding sleeve and dynamic iron core, therefore by the scheme of the present embodiment, gap between sliding sleeve and dynamic iron core can be very little, reduce leakage field, operating efficiency is higher, has good stability.
Closed shell 9 ensures coil permeability, reduces leakage field; Three circular holes are arranged at bottom, macropore is used to install static iron core, and two, side aperture is used to fixedly mount coil component, because the coil rack end face in coil component also has the boss of two same positions, just and with these two apertures coordinating, is that coil reliably can be located and can not be rotated;
The effect of back-moving spring 10: will plunger return be moved after solenoid dead electricity;
Described movable push bar 11 is the push rod of non-magnet material or low permeability magnetic material; Movable push bar 11 connects sound iron core and back-moving spring, and material is non-magnetic stainless steel; If adopt permeability magnetic material that leakage flux can be produced, thus reduce electromagnetic attraction;
One end of static iron core is fixed by fixing back-up ring and closed shell one end; make can not produce displacement during coil electricity action; middle riveting dress sliding shaft sleeve; make to rub between movable push bar and sliding shaft sleeve; also be electrical pure iron because static iron core material is the same with dynamic iron core, hardness is very low, easy to wear; riveting fills smooth and the sliding shaft sleeve of high rigidity can reduce coefficient of friction, and protection static iron core can not wear and tear.
Fixing back-up ring 14 is for fixing static iron core; Bearing pin 15 is for connecting movable push bar and connecting rod; Connecting rod 16 is by the power transmission of electromagnet, and two panels connecting rod is rotary simultaneously, can change the direction of action of electromagnet line movement; Elastic cylindrical pin 17, for fixed pin shaft, makes it not come off.
The course of work of the present embodiment: with reference to Fig. 1, this state solenoid is not energized, dynamic iron core and static iron core are subject to the elastic force of back-moving spring, and now the connecting rod of low-voltage electrical apparatus is positioned at a station; After solenoid energising, produce electromagnetic attraction, iron core and its fixing movable push bar can be made to overcome action of reset spring power along the adhesive of static iron core direction, and now the connecting rod of low-voltage electrical apparatus is positioned at another station.
Claims (4)
1. the high-thrust electromagnet for low-voltage electrical apparatus, it is characterized in that: comprise closed shell, dynamic iron core, static iron core, movable push bar, back-moving spring, magnetic conduction end cap and magnet exciting coil, described closed shell is arranged on the base of low-voltage electrical apparatus, in described closed shell, magnet exciting coil is installed, in described magnet exciting coil, dynamic iron core and static iron core are set, magnetic conduction end cap is installed in the side of described closed shell, described dynamic iron core is through described magnetic conduction end cap, described static iron core is fixedly mounted on the another side of described closed shell, described dynamic iron core is fixedly connected with one end of movable push bar, the other end of described movable push bar through described static iron core endoporus and with the rod hinge connection of low-voltage electrical apparatus, described movable push bar is set with described back-moving spring, and the two ends of described back-moving spring withstand between dynamic iron core and static iron core respectively,
Suit sliding sleeve in the skeleton of described magnet exciting coil, the outer ring of described dynamic iron core is sleeved in described sliding sleeve slidably, and described movable push bar is slidably through the endoporus of described static iron core.
2., as claimed in claim 1 for the high-thrust electromagnet of low-voltage electrical apparatus, it is characterized in that: between described solenoid side and magnetic conduction end cap, damping washer is set.
3. as claimed in claim 1 or 2 for the high-thrust electromagnet of low-voltage electrical apparatus, it is characterized in that: the outer ring suit sliding guide sleeve of described dynamic iron core, described sliding guide sleeve is sleeved in described sliding sleeve slidably.
4. as claimed in claim 1 or 2 for the high-thrust electromagnet of low-voltage electrical apparatus, it is characterized in that: the endoporus of described static iron core installs sliding shaft sleeve, described movable push bar is slidably through described sliding shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218302.0A CN104810128B (en) | 2015-04-30 | 2015-04-30 | High-thrust electromagnet for low-voltage apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218302.0A CN104810128B (en) | 2015-04-30 | 2015-04-30 | High-thrust electromagnet for low-voltage apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN104810128A true CN104810128A (en) | 2015-07-29 |
| CN104810128B CN104810128B (en) | 2017-03-22 |
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| CN201510218302.0A Active CN104810128B (en) | 2015-04-30 | 2015-04-30 | High-thrust electromagnet for low-voltage apparatus |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6837478B1 (en) * | 1999-11-16 | 2005-01-04 | Continental Teves Ag & Co., Ohg | Electromagnet valve |
| CN2754189Y (en) * | 2004-07-15 | 2006-01-25 | 上海精益电器厂有限公司 | Solenoid electromagnet |
| CN201237960Y (en) * | 2008-07-31 | 2009-05-13 | 郭保宣 | Magnetic latching controller |
| CN104315226A (en) * | 2014-09-11 | 2015-01-28 | 奉化市星宇电子有限公司 | Solenoid valve for fluid control |
-
2015
- 2015-04-30 CN CN201510218302.0A patent/CN104810128B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6837478B1 (en) * | 1999-11-16 | 2005-01-04 | Continental Teves Ag & Co., Ohg | Electromagnet valve |
| CN2754189Y (en) * | 2004-07-15 | 2006-01-25 | 上海精益电器厂有限公司 | Solenoid electromagnet |
| CN201237960Y (en) * | 2008-07-31 | 2009-05-13 | 郭保宣 | Magnetic latching controller |
| CN104315226A (en) * | 2014-09-11 | 2015-01-28 | 奉化市星宇电子有限公司 | Solenoid valve for fluid control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104810128B (en) | 2017-03-22 |
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