CN103700464B - A kind of Novel proportion electromagnet - Google Patents
A kind of Novel proportion electromagnet Download PDFInfo
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- CN103700464B CN103700464B CN201310695845.2A CN201310695845A CN103700464B CN 103700464 B CN103700464 B CN 103700464B CN 201310695845 A CN201310695845 A CN 201310695845A CN 103700464 B CN103700464 B CN 103700464B
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Abstract
The invention provides a kind of Novel proportion electromagnet, belong to electromagnet technical field.It solve the problem that the design of existing proportion electro-magnet is unreasonable, be difficult to ensure the concentricity be divided between the two bearings at push rod two ends.This Novel proportion electromagnet comprises and has the first inner chamber, the housing of the second inner chamber, magnetic core pipe is installed in the first inner chamber, coil block, first sealing ring, magnetic core pipe offers and exports through hole and containing cavity, the armature component be made up of armature and push rod is installed in containing cavity, push rod one end is arranged with clutch shaft bearing, the other end is arranged with the self-lubricating bearing coaxially arranged with push rod, containing cavity is sealedly connected with the bearing pedestal for installing self-lubricating bearing near one end of the second inner chamber, push rod is successively through clutch shaft bearing, armature, self-lubricating bearing also partly stretches in the second inner chamber.This Novel proportion electromagnet has advantage that is reasonable in design, that decrease fit dimension between parts, can ensure the concentricity be divided between the two bearings at push rod two ends.
Description
Technical field
The invention belongs to electromagnet technical field, relate to a kind of Novel proportion electromagnet.
Background technology
Electromagnet be the magnetic field magnetisation utilizing hot-wire coil the to produce composition dynamic iron core of electromagnet and fixed core, makes dynamic two faces relative with fixed core unshakable in one's determination be opposite pole, thus between dynamic iron core and fixed core, produces a kind of device of suction.Proportion electro-magnet is a kind of electromagnet utilizing special magnetic Circuit Design to make electromagnetic attraction not change with armature change in displacement, and electromagnetic attraction and the linear change of electric current.Proportion electro-magnet, as the core component realizing the signal of telecommunication and mechanical signal in electrical-liquid control element and change, carries important function in the electrohydraulic control system in national defence and industrial each field.
Figure 1 shows that proportion electro-magnet of the prior art, comprise and there is the first inner chamber, the housing of the second inner chamber and the first inner chamber communicate with the second inner chamber, magnetic core pipe is installed and around the coil block be arranged on outside magnetic core pipe in the first inner chamber, housing, magnetic core pipe and coil block three are tightly connected, offer in the middle part of magnetic core pipe export through hole and respectively with output through hole, the containing cavity that second inner chamber communicates, the armature component be made up of armature and push rod is installed in containing cavity, armature to be sealedly connected in containing cavity and and between the second inner chamber, there is stroke gap, push rod two ends are arranged with clutch shaft bearing and the second bearing and clutch shaft bearing respectively, second bearing, push rod three coaxially arranged, clutch shaft bearing, second bearing is sealedly connected on output through hole respectively, in second inner chamber, push rod is successively through clutch shaft bearing, armature, second bearing also partly stretches in the second inner chamber, magnetic core pipe is near being provided with the first sealing ring be embedded in housing between one end and housing of the second inner chamber.
There is following defect in the structural design of aforementioned proportion electromagnet: one, design unreasonable, when the processing of this electromagnet and clamping, consideration is needed to obtain (i.e. A1 place in Fig. 1) between magnetic core pipe outer end and housing, between magnetic core pipe the inner and housing (i.e. B1 place in Fig. 1), the fit dimension at (i.e. C place in Fig. 1) between second bearing and housing, fit dimension between parts is more, and when clamping, need first the second bearing to be arranged in housing, again by magnetic core pipe, clutch shaft bearing, the correspondences such as coil block are arranged in housing, push rod and the second bearing fit close, add the clamping times adding man-hour, reduce overall performance, two, in practical work process, be difficult to the concentricity ensureing to be divided between the two bearings at push rod two ends, stability when cannot guarantee work of electromagnet and control precision, increase the housing scrappage of product, make the housing scrappage of product reach more than 10%.
In sum, for solving the structural deficiency of existing proportion electro-magnet, need to design a kind of reasonable in design, Novel proportion electromagnet of decreasing fit dimension between parts, the concentricity be divided between the two bearings at push rod two ends can being ensured.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of reasonable in design, Novel proportion electromagnet of decreasing fit dimension between parts, the concentricity be divided between the two bearings at push rod two ends can being ensured.
Object of the present invention realizes by following technical proposal: a kind of Novel proportion electromagnet, comprise and there is the first inner chamber, the housing of the second inner chamber and the first inner chamber communicate with the second inner chamber, magnetic core pipe is installed and around the coil block be arranged on outside magnetic core pipe in described first inner chamber, described housing, magnetic core pipe and coil block three are tightly connected, offer in the middle part of described magnetic core pipe export through hole and respectively with output through hole, the containing cavity that second inner chamber communicates, the armature component be made up of armature and push rod is installed in described containing cavity, described armature to be sealedly connected in containing cavity and and between the second inner chamber, there is stroke gap, described magnetic core pipe is provided with the first sealing ring near between one end and housing of the second inner chamber, described push rod one end is arranged with the clutch shaft bearing that coaxially arranges with push rod and clutch shaft bearing is sealedly connected on and exports in through hole, the described push rod other end is arranged with the self-lubricating bearing coaxially arranged with push rod, described containing cavity is sealedly connected with the bearing pedestal for installing described self-lubricating bearing near one end of the second inner chamber, described push rod is successively through clutch shaft bearing, armature, self-lubricating bearing also partly stretches in the second inner chamber.
In above-mentioned a kind of Novel proportion electromagnet, the shape of cross section of described bearing pedestal is "T"-shaped, described bearing pedestal stretches in the second inner chamber near the one end portion of the second inner chamber, offer bearing mounting groove in the middle part of described bearing pedestal and the porch of bearing mounting groove be provided with bearing install chamfering, described self-lubricating bearing is embedded in bearing mounting groove, also offer in the middle part of described bearing pedestal and the push rod through hole communicated bottom bearing mounting groove, the diameter of described push rod through hole is less than the width of bearing mounting groove, and described push rod is through push rod through hole.
In above-mentioned a kind of Novel proportion electromagnet, described armature is connected by latch and push rod, offers symmetrically arranged two axially extending bores in the middle part of described armature vertically, and described two axially extending bores divide and are listed in push rod both sides.
In above-mentioned a kind of Novel proportion electromagnet, described magnetic core pipe is by iron core, guide pin bushing is welded, between described iron core and guide pin bushing, the shape of cross section of weld is trapezoidal, described output through hole is opened in the middle part of iron core, described containing cavity is opened in the middle part of guide pin bushing, described guide pin bushing inside offers the seat mounting groove for the described bearing pedestal that is tightly connected, the width of described seat mounting groove is greater than the width of containing cavity, the lateral wall of described guide pin bushing offers first ring connected in star and described first sealing ring is embedded in first ring connected in star, described guide pin bushing faces and is provided with magnetic core between the end face of the second inner chamber and lateral wall and installs chamfering.
In above-mentioned a kind of Novel proportion electromagnet, described guide pin bushing inside also offers back-up ring mounting groove and installs porose elastic spring in back-up ring mounting groove, and the width of described back-up ring mounting groove is slightly larger than the width of seat mounting groove.
In above-mentioned a kind of Novel proportion electromagnet, described housing is sealedly connected with adjusting rod, described adjusting rod also partly stretches in containing cavity through housing, bearing pedestal successively.
In above-mentioned a kind of Novel proportion electromagnet, the lateral wall of described adjusting rod offers the second annular groove, in described second annular groove, be embedded with the second sealing ring.
In above-mentioned a kind of Novel proportion electromagnet, described coil block comprises coil former and is arranged on the coil in coil former, is filled with fluid sealant between described coil block and housing.
In above-mentioned a kind of Novel proportion electromagnet, described armature is provided with antifreeze plate away between bearing pedestal one end and containing cavity inwall, and described antifreeze plate is set on push rod.
In above-mentioned a kind of Novel proportion electromagnet, described first sealing ring, the second sealing ring, fluid sealant all can be made up of elastomeric material.
Compared with prior art, reasonable in design of the present invention, when processing and clamping, only needs to consider to obtain between magnetic core pipe outer end and housing, fit dimension between the inner and housing of magnetic core pipe, decreases the fit dimension between parts, is more conducive to process; Self-lubricating bearing and bearing pedestal are directly installed in magnetic core pipe, when clamping, make magnetic core pipe just can complete processing on clamping basis once, decrease the clamping times adding man-hour, effectively improve overall performance; In practical work process, the present invention well can ensure the concentricity between self-lubricating bearing and clutch shaft bearing, decreases the stagnant ring of product, improves control precision, reduces the housing scrappage of product.
Accompanying drawing explanation
Fig. 1 be in prior art proportion electro-magnet structural representation.
Fig. 2 is the structural representation of a preferred embodiment of the present invention.
Fig. 3 is the structural representation of a preferred embodiment of the present invention bottom bracket.
Fig. 4 is the structural representation of armature component in a preferred embodiment of the present invention.
Fig. 5 is the structural representation of magnetic core pipe in a preferred embodiment of the present invention.
In figure, 10, housing; 11, the second inner chamber; 20, magnetic core pipe; 21, iron core; 211, through hole is exported; 22, guide pin bushing; 221, containing cavity; 222, seat mounting groove; 223, first ring connected in star; 224, chamfering installed by magnetic core; 225, back-up ring mounting groove; 30, coil block; 31, coil former; 32, coil; 41, armature; 411, axially extending bore; 42, push rod; 43, latch; 51, clutch shaft bearing; 52, the second bearing; 61, the first sealing ring; 62, hole elastic spring; 63, the second sealing ring; 64, fluid sealant; 70, self-lubricating bearing; 80, bearing pedestal; 81, bearing mounting groove; 82, chamfering installed by bearing; 83, push rod through hole; 90, adjusting rod; 100, antifreeze plate.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 2, this Novel proportion electromagnet comprises and has the first inner chamber, the housing 10 of the second inner chamber 11 and the first inner chamber communicate with the second inner chamber 11, magnetic core pipe 20 is installed and around the coil block 30 be arranged on outside magnetic core pipe 20 in first inner chamber, housing 10, magnetic core pipe 20 and coil block 30 three are tightly connected, offer in the middle part of magnetic core pipe 20 export through hole 211 and respectively with output through hole 211, the containing cavity 221 that second inner chamber 11 communicates, the armature component be made up of armature 41 and push rod 42 is installed in containing cavity 221, armature 41 to be sealedly connected in containing cavity 221 and and between the second inner chamber 11, there is stroke gap, magnetic core pipe 20 is provided with the first sealing ring 61 near between one end and housing 10 of the second inner chamber 11, push rod 42 one end is arranged with the coaxial clutch shaft bearing 51 that arranges with push rod 42 and clutch shaft bearing 51 is sealedly connected on and exports in through hole 211, push rod 42 other end is arranged with the coaxial self-lubricating bearing 70 arranged with push rod 42, containing cavity 221 is sealedly connected with the bearing pedestal 80 for installing self-lubricating bearing 70 near one end of the second inner chamber 11, push rod 42 is successively through clutch shaft bearing 51, armature 41, self-lubricating bearing 70 also partly stretches in the second inner chamber 11.
Proportion electro-magnet reasonable in design in this case, the effect of push rod 42 exports electromagnetic force and externally load acting, and the first sealing ring 61 is that anti-fluid outwards flows out for the fluid (i.e. fluid) in seal casinghousing 10.Self-lubricating bearing 70 is not arranged in housing 10, when processing and clamping, consideration is only needed to obtain the fit dimension at (i.e. B2 place in Fig. 2) between the inner and housing 10 of (i.e. A2 place in Fig. 2) between magnetic core pipe 20 outer end and housing 10, magnetic core pipe 20, without the need to considering the fit dimension between self-lubricating bearing 70 and housing 10, decrease the fit dimension between parts, be more conducive to processing, facilitate the clamping of workman and improve operating efficiency.Self-lubricating bearing 70 and bearing pedestal 80 are directly installed in magnetic core pipe 20, when clamping, make magnetic core pipe 20 just can complete processing on clamping basis once, decrease the clamping times adding man-hour, reach requirement, effectively improve overall performance.
In practical work process, self-lubricating bearing 70 in this case to be directly set on push rod 42 and to be arranged in armature 41 by bearing pedestal 80, such structural design, easy to assembly and well can ensure the concentricity between self-lubricating bearing 70 and clutch shaft bearing 51, decrease the stagnant ring of product, improve control precision, reduce housing 10 scrappage of product, make housing 10 scrappage of product be reduced to 1.5%.
As shown in Figure 3, preferably, the shape of cross section of bearing pedestal 80 is "T"-shaped, bearing pedestal 80 stretches in the second inner chamber 11 near the one end portion of the second inner chamber 11, offer bearing mounting groove 81 in the middle part of bearing pedestal 80 and the porch of bearing mounting groove 81 be provided with bearing install chamfering 82, self-lubricating bearing 70 is embedded in bearing mounting groove 81.Bearing pedestal 80 stretches into the structure division in the second inner chamber 11, second inner chamber 11 is stretched into push rod 42 and plays guide effect, improve resistance to overturning, and bearing is installed chamfering 82 pairs of push rods 42 and is stretched in bearing mounting groove 81 and play guide effect, push rod 42 is moved more smooth and easy.Further, also offer in the middle part of bearing pedestal 80 and the push rod through hole 83 communicated bottom bearing mounting groove 81, the diameter of push rod through hole 83 is less than the width of bearing mounting groove 81, and push rod 42 is through push rod through hole 83.Above-mentioned bearing pedestal 80 reasonable in design, volume is little, is conducive to processing, makes self-lubricating bearing 70 easy for installation and fixed, and work of electromagnet is stablized.
Shown in composition graphs 2 and Fig. 4, preferably, armature 41 is connected by latch 43 and push rod 42, offers symmetrically arranged two axially extending bore 411, two axially extending bore 411 points vertically and be listed in push rod 42 both sides in the middle part of armature 41.Under initial condition, armature 41 and push rod 42 are connected, and structure is simple, mount and dismount all more convenient, be filled with fluid (i.e. fluid) in containing cavity 221, arranging of axially extending bore 411 can make fluid flow freely in containing cavity 221, fluid (i.e. fluid) pressure balance of holding armature 41 two ends.
Existing proportion electro-magnet shown in Fig. 1 generally can adopt integrated magnetic core pipe 20, makes the compression strength in magnetic core pipe 20 course of work large not, especially when magnetic core pipe 20 arranges long, affects work of electromagnet efficiency.
As shown in Figure 5, preferably, in this case, magnetic core pipe 20 is welded by iron core 21, guide pin bushing 22, and between iron core 21 and guide pin bushing 22, the shape of cross section of weld is trapezoidal.Iron core 21, guide pin bushing 22 can adopt permeability magnetic material, the two can select non-solder material (such as copper product) to weld, the weld between iron core 21, guide pin bushing 22 can be made so more wear-resisting, the parts before and after weld are made to combine more closely with firm, make magnetic core pipe 20 have larger compression strength, magnetic core pipe 20 can make various sizes according to the actual requirements.
Preferably, exporting through hole 211 is opened in the middle part of iron core 21, containing cavity 221 is opened in the middle part of guide pin bushing 22, guide pin bushing 22 inside offers the seat mounting groove 222 for the bearing pedestal 80 that is tightly connected, the width of seat mounting groove 222 is greater than the width of containing cavity 221, the lateral wall of guide pin bushing 22 offers first ring connected in star 223 and the first sealing ring 61 is embedded in first ring connected in star 223, guide pin bushing 22 faces and is provided with magnetic core between the end face of the second inner chamber 11 and lateral wall and installs chamfering 224.Above-mentioned structural design, make bearing pedestal 80 fixed and easy for installation, can direct in advance the first sealing ring 61 is contained in first ring connected in star 223, when clamping magnetic core pipe 20 disposable by the first sealing ring 61 also together processing and loading clamp complete, decrease clamping times, simple and convenient.In addition, chamfering 224 installed by magnetic core, and to make magnetic core pipe 20 stretch into and extract out the first inner chamber convenient and light, and structure is simple and be convenient to process.
Shown in composition graphs 1 and Fig. 5, further preferably, guide pin bushing 22 inside also offers back-up ring mounting groove 225 and installs porose elastic spring 62 in back-up ring mounting groove 225, and the width of back-up ring mounting groove 225 is slightly larger than the width of seat mounting groove 222.Hole elastic spring 62 plays the effect of axial restraint, can prevent the axial endplay of bearing pedestal 80, and also can prevent self-lubricating bearing 70 axial endplay be contained in bearing pedestal 80, structure is simple and easy for installation.
As shown in Figure 1, preferably, housing 10 is sealedly connected with adjusting rod 90, adjusting rod 90 also partly stretches in containing cavity 221 through housing 10, bearing pedestal 80 successively, adjusting rod 90 can facilitate staff to regulate fluid (i.e. fluid) flow in containing cavity 221, reasonable in design and simple to operate.
Further preferably; the lateral wall of adjusting rod 90 offers the second annular groove; the second sealing ring 63 is embedded with in second annular groove; second sealing ring 63 enters into electromagnet inside for preventing extraneous dust and steam; certain protective effect is played to electromagnet inside, can also prevent internal flow (i.e. fluid) from flowing out outside electromagnet.
As shown in Figure 1, preferably, the coil 32 that coil block 30 comprises coil former 31 and is arranged in coil former 31, is filled with fluid sealant 64 between coil block 30 and housing 10.Coil block 30 is generally also connected with the socket be connected with the external world; fluid sealant 64 can prevent extraneous dust and steam from entering into electromagnet inside; certain protective effect is played to electromagnet inside, can also prevent internal flow (i.e. fluid) from flowing out outside electromagnet.
As shown in Figure 1, preferably, armature 41 is provided with antifreeze plate 100 away between bearing pedestal 80 one end and containing cavity 221 inwall, and antifreeze plate 100 is set on push rod 42.Antifreeze plate 100 can prevent electromagnetic wave noise from disturbing, and also can be used for limiting the minimal air gap between armature 41 and magnetic core pipe 20.
In addition, further preferably, the first sealing ring 61, second sealing ring 63, fluid sealant 64 all can be made up of elastomeric material.Elastomeric material is high resilience at room temperature, can produce comparatively large deformation under very little External Force Acting, resilient after removing external force, processing is simple, mount and dismount all more convenient and cost is lower, according to actual needs, elastomeric material can be replaced with other materials.
This Novel proportion electromagnet in an initial condition, after coil 32 is energized, electromagnetic force is produced between armature 41 and iron core 21, make armature 41 produce suction to move to iron core 21 direction, thus export external load acting by push rod 42, and this electromagnetic force maintenance level in certain stroke range (i.e. the distance in stroke gap); After power-off, armature 41 automatically resets under self gravitation effect, or to deviating from the motion of iron core 21 direction under external pressure effect.
In sum, proportion electro-magnet reasonable in design in this case, when processing and clamping, consideration is only needed to obtain the fit dimension at (i.e. B2 place in Fig. 2) between the inner and housing 10 of (i.e. A2 place in Fig. 2) between magnetic core pipe 20 outer end and housing 10, magnetic core pipe 20, decrease the fit dimension between parts, be more conducive to processing.Self-lubricating bearing 70 and bearing pedestal 80 are directly installed in magnetic core pipe 20, when clamping, make magnetic core pipe 20 just can complete processing on clamping basis once, decrease the clamping times adding man-hour, effectively improve overall performance.
In practical work process, the proportion electro-magnet in this case well can ensure the concentricity between self-lubricating bearing 70 and clutch shaft bearing 51, decreases the stagnant ring of product, improves control precision, reduces housing 10 scrappage of product.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (9)
1. a Novel proportion electromagnet, comprise and there is the first inner chamber, the housing of the second inner chamber and the first inner chamber communicate with the second inner chamber, magnetic core pipe is installed and around the coil block be arranged on outside magnetic core pipe in described first inner chamber, described housing, magnetic core pipe and coil block three are tightly connected, offer in the middle part of described magnetic core pipe export through hole and respectively with output through hole, the containing cavity that second inner chamber communicates, the armature component be made up of armature and push rod is installed in described containing cavity, described armature to be sealedly connected in containing cavity and and between the second inner chamber, there is stroke gap, described magnetic core pipe is provided with the first sealing ring near between one end and housing of the second inner chamber, described push rod one end is arranged with the clutch shaft bearing that coaxially arranges with push rod and clutch shaft bearing is sealedly connected on and exports in through hole, it is characterized in that, the described push rod other end is arranged with the self-lubricating bearing coaxially arranged with push rod, described containing cavity is sealedly connected with the bearing pedestal for installing described self-lubricating bearing near one end of the second inner chamber, described push rod is successively through clutch shaft bearing, armature, self-lubricating bearing also partly stretches in the second inner chamber, the shape of cross section of described bearing pedestal is "T"-shaped, described bearing pedestal stretches in the second inner chamber near the one end portion of the second inner chamber, offer bearing mounting groove in the middle part of described bearing pedestal and the porch of bearing mounting groove be provided with bearing install chamfering, described self-lubricating bearing is embedded in bearing mounting groove, also offer in the middle part of described bearing pedestal and the push rod through hole communicated bottom bearing mounting groove, the diameter of described push rod through hole is less than the width of bearing mounting groove, described push rod is through push rod through hole.
2. a kind of Novel proportion electromagnet according to claim 1, is characterized in that, described armature is connected by latch and push rod, offers symmetrically arranged two axially extending bores in the middle part of described armature vertically, and described two axially extending bores divide and are listed in push rod both sides.
3. a kind of Novel proportion electromagnet according to claim 1, it is characterized in that, described magnetic core pipe is by iron core, guide pin bushing is welded, between described iron core and guide pin bushing, the shape of cross section of weld is trapezoidal, described output through hole is opened in the middle part of iron core, described containing cavity is opened in the middle part of guide pin bushing, described guide pin bushing inside offers the seat mounting groove for the described bearing pedestal that is tightly connected, the width of described seat mounting groove is greater than the width of containing cavity, the lateral wall of described guide pin bushing offers first ring connected in star and described first sealing ring is embedded in first ring connected in star, described guide pin bushing faces and is provided with magnetic core between the end face of the second inner chamber and lateral wall and installs chamfering.
4. a kind of Novel proportion electromagnet according to claim 3, is characterized in that, described guide pin bushing inside also offers back-up ring mounting groove and installs porose elastic spring in back-up ring mounting groove, and the width of described back-up ring mounting groove is slightly larger than the width of seat mounting groove.
5. a kind of Novel proportion electromagnet according to claim 1, is characterized in that, described housing is sealedly connected with adjusting rod, and described adjusting rod also partly stretches in containing cavity through housing, bearing pedestal successively.
6. a kind of Novel proportion electromagnet according to claim 5, is characterized in that, the lateral wall of described adjusting rod offers the second annular groove, is embedded with the second sealing ring in described second annular groove.
7. a kind of Novel proportion electromagnet according to claim 6, is characterized in that, described coil block comprises coil former and is arranged on the coil in coil former, is filled with fluid sealant between described coil block and housing.
8. a kind of Novel proportion electromagnet according to claim 1, is characterized in that, described armature is provided with antifreeze plate away between bearing pedestal one end and containing cavity inwall, and described antifreeze plate is set on push rod.
9. a kind of Novel proportion electromagnet according to claim 7, is characterized in that, described first sealing ring, the second sealing ring, fluid sealant all can be made up of elastomeric material.
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| CN103996487B (en) * | 2014-06-18 | 2016-07-13 | 重庆华渝电气集团有限公司 | Outer armature type hi-Fix electric magnet |
| CN104167895A (en) * | 2014-08-20 | 2014-11-26 | 浙江万向精工有限公司 | Bi-directional linear force motor |
| CN104358642A (en) * | 2014-11-07 | 2015-02-18 | 浙江恒光汽车部件有限公司 | Electromagnetic fuel pump with wear-resistant mandrel |
| CN104617740A (en) * | 2015-01-14 | 2015-05-13 | 江西农业大学 | Wet type high temperature resistance electric-mechanical converter |
| DE102015003672A1 (en) * | 2015-03-20 | 2016-09-22 | Hydac Electronic Gmbh | actuator |
| CN106935356A (en) * | 2017-03-31 | 2017-07-07 | 广东金禄科技股份有限公司 | A kind of Self-retaining electromagnet with being oriented to |
| CN107575089A (en) * | 2017-09-29 | 2018-01-12 | 惠州市亚欣电器有限公司 | A kind of electromagnet for subway safe door |
| CN111271486B (en) * | 2020-03-01 | 2023-04-07 | 山东东阀制冷科技有限公司 | Pressure reducing valve |
| CN113327757B (en) * | 2021-05-27 | 2023-01-24 | 安徽昊方机电股份有限公司 | Two-stage transmission coil assembly |
| CN114255958B (en) * | 2021-11-08 | 2023-07-25 | 绵阳富临精工股份有限公司 | Electromagnetic actuator |
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| CN101441918A (en) * | 2008-08-21 | 2009-05-27 | 浙江大学 | Low power consumption and high pressure resistant proportionality electromagnet |
| CN101984495A (en) * | 2010-08-31 | 2011-03-09 | 浙江大学 | Stepped disc type ratio electromagnet |
| CN102063998A (en) * | 2010-11-23 | 2011-05-18 | 浙江大学 | Pressure-proof proportion electromagnet based on integrated type flux sleeve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11307342A (en) * | 1998-04-17 | 1999-11-05 | Sanmei Denki Kk | Solenoid |
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|---|---|---|---|---|
| CN101441918A (en) * | 2008-08-21 | 2009-05-27 | 浙江大学 | Low power consumption and high pressure resistant proportionality electromagnet |
| CN101984495A (en) * | 2010-08-31 | 2011-03-09 | 浙江大学 | Stepped disc type ratio electromagnet |
| CN102063998A (en) * | 2010-11-23 | 2011-05-18 | 浙江大学 | Pressure-proof proportion electromagnet based on integrated type flux sleeve |
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