CN106910589B - A kind of manufacturing method of electromagnetic coil assembly and the component - Google Patents
A kind of manufacturing method of electromagnetic coil assembly and the component Download PDFInfo
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- CN106910589B CN106910589B CN201710257321.3A CN201710257321A CN106910589B CN 106910589 B CN106910589 B CN 106910589B CN 201710257321 A CN201710257321 A CN 201710257321A CN 106910589 B CN106910589 B CN 106910589B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
- G21C7/12—Means for moving control elements to desired position
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/005—Impregnating or encapsulating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/02—Coils wound on non-magnetic supports, e.g. formers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/06—Insulation of windings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses the manufacturing methods of a kind of electromagnetic coil assembly and the component, the component includes coil and the magnetic yoke for damascene wiring, inlaid hole is provided in the magnetic yoke, the coil is installed in inlaid hole, the depth of the inlaid hole is equal to or more than the length of coil, is also filled with encapsulating layer in the space between the hole wall and coil of the inlaid hole.The manufacturing method be in the inlaid hole that coil is embedded in magnetic yoke after, then be potted to obtain encapsulating layer.The coil block that the coil block or the method that this programme provides obtain can significantly improve the heat dissipation effect of electromagnetic coil assembly, coil inside temperature is effectively reduced, and the integral strength of coil is greatly enhanced, achieve the purpose that improve CRDM electromagnetic coil assembly reliability and service life.
Description
Technical field
The present invention relates to reactor control rod driving mechanism technical fields, more particularly to a kind of electromagnetic coil assembly and are somebody's turn to do
The manufacturing method of component.
Background technique
Reactor is the core of nuclear power station, and the control rod drive mechanism (CRDM) on reactor can be promoted, under
Position of the control rod in reactor core is inserted or kept, to control the Nuclear Fission Rate of reactor, starting is realized, stops reactor and heap
The adjusting of power, and can under accident conditions quick underthrust control rod (quick scram), stop reactor promptly in a short time
Heap, to ensure that nuclear plant safety is run.CRDM realizes that above-mentioned function be unable to do without electromagnetic coil assembly, and the component is because of its special work
Make the most important property of environment and function, thus require electromagnetic coil assembly that must have reliable and stable, heatproof is high, insulation performance
Well, the features such as radiation resistance, longlife noodles.
In the prior art, it is designed for the life and reliability of electromagnetic coil, industry technology personnel are from electromagnetic coil assembly
Structure and wherein made many explorations on the material of part, such as application No. is the patent of invention of CN103329209 A and
Described in patent application file application No. is 201410500311.4.It is done for the service life and stability problem of electromagnetic coil assembly
Further research, can undoubtedly further increase the reliability of control rod drive mechanism.
Summary of the invention
It is made further research for set forth above for the service life of electromagnetic coil assembly and stability problem, it undoubtedly can be into
One step improves the problem of reliability of control rod drive mechanism, and the present invention provides the systems of a kind of electromagnetic coil assembly and the component
Method is made, coil inside temperature can be significantly reduced in the coil block that the coil block or the method that this programme provides obtain,
Achieve the purpose that improve CRDM electromagnetic coil assembly reliability and extends CRDM electromagnetic coil assembly service life.
The manufacturing method of a kind of electromagnetic coil assembly provided by the invention and the component is solved by following technical essential
Problem: a kind of electromagnetic coil assembly is provided with inlaid hole in the magnetic yoke, institute including coil and for the magnetic yoke of damascene wiring
Coil is stated to be installed in inlaid hole, the depth of the inlaid hole is equal to or more than the length of coil, the hole wall of the inlaid hole with
Encapsulating layer is also filled in space between coil.
For a long time, three coils in nuclear power station CRDM electromagnetic coil assembly are encapsulated using independent coiling, encapsulating
And then the form being assemblied together with 4 pieces of magnetic yokes, therefore between coil and the mutually matched periphery of magnetic yoke inevitably
There are gap, this gap is unfavorable for coil and is radiated outward by magnetic yoke, can make coil inside temperature drift.Meanwhile alone about
Line, the coil integral strength of encapsulating are low, and moisture resistance and anti-seismic performance is not high.
In the prior art, for installing being spatially located between two neighboring magnetic yoke of same coil, it may be assumed that two adjacent magnetic
It is provided with inlaid hole on yoke, and the sum of hole depth of two inlaid holes is suitable with the length of coil, in assembly, completes
In the inlaid hole for the magnetic yoke that one end of coil is first embedded, at this point, the other end of coil is relative to described therein
One magnetic yoke evagination, then use and another magnetic yoke is covered into the means in the coil other end, while meeting the other end insertion of coil
Assembling form in another magnetic yoke inlaid hole completes the assembling of coil and magnetic yoke, and since special structure designs, coil with
Gap between magnetic yoke is at most only capable of filling up a part by insulating material, but the gap area that do not filled up completely is unfavorable for
Coil is radiated outward by magnetic yoke.Exist gradually to loosen meanwhile after coil is mounted among the inner cavity of magnetic yoke, when vibration and is
Coil, which is subjected to impact, provides possibility, so that the whole anti-seismic performance of electromagnetic coil assembly is poor.
In above scheme, the inlaid hole is the inner cavity being provided in magnetic yoke, and the depth for being set as inlaid hole is equal to
Or the length greater than coil, it is intended to realize after in coil insertion inlaid hole, end and edge of the coil close to inlaid hole open end
The open end in embedding hole flushes or is located in inlaid hole, is equivalent to the faying face between adjacent magnetic yoke by being transferred in the middle part of coil
Overhang, thus can encapsulating mouth using the open end of inlaid hole as potting compound, be to realize to manufacture in electromagnetic coil assembly
Process obtains encapsulating layer and provides structural support, obtains encapsulating to realize in the space between the hole wall and coil of inlaid hole
Layer.After completing the encapsulating layer production, then the magnetic yoke of coil will be provided with, as the magnetic yoke sequence of electromagnetic coil assembly end cap
It is connected, obtains the electromagnetic coil assembly that can apply to control rod drive mechanism.
The structure that this programme provides, it is above due to using filled layer of the encapsulating layer as space between magnetic yoke and coil
Filled layer can be used as heat transfer medium, relative to existing directly for hole or containing the space of hole, be easy to implement coil working
When generated heat can preferably be transmitted outward by the heat transfer medium, reach optimization electromagnetic coil assembly coil
The effect of heat dissipation；Meanwhile the above structure is equivalent to encapsulating layer as between coil and magnetic yoke when electromagnetic coil assembly assembles
Both coil magnetic yokes are connected as one by intermediate connector, have obtained " coil magnetic yoke assembly ", in this way, due to coil with
Gap between magnetic yoke is filled by encapsulating layer, in this way, the connection relationship of coil and magnetic yoke is reliable when vibration, it will not be because of coil
It gradually loosens to be subjected to impact for coil between the two with magnetic yoke and possibility is provided, so that the electromagnetic coil assembly that this case provides is with good
Good whole shock resistance.
Meanwhile in the present solution, due to realizing the sealing between coil and magnetic yoke using encapsulating layer, therefore encapsulating layer can be used as line
Enclose the stabilization supporting layer between magnetic yoke, in this way, the outer housing in existing coil can be saved, i.e., the effect of outer housing by magnetic yoke with
Encapsulating layer substitution, coil only include coil windings and inner frame, in this way, being not only conducive to simplify the structure of coil, while can be reduced
Thermal resistance when coil radiates outward is conducive to promote coil radiating rate, while also having the effect of reducing this assembly volume.
To sum up, the heat dissipation effect of the component coil can be significantly improved, and the purpose of coil inside temperature is effectively reduced,
Meanwhile modular construction provided above can greatly enhance the integral strength of electromagnetic coil assembly, reach and improve CRDM electromagnetic coil
The purpose of assembly reliability and service life.
As those skilled in the art, the magnetic yoke is defined for the magnetic yoke of damascene wiring, is not difficult to obtain, is located at this
Setting inlaid hole is not needed in the magnetic yoke as end sealing plate of the end of component, i.e., in two adjacent magnetic yokes, wherein
A magnetic yoke on be arranged inlaid hole, lid of another magnetic yoke as the magnetic yoke for being provided with inlaid hole；The line
The length value of circle is the distance between coil both ends numerical value, i.e., in CRDM, coil includes skeleton and coil windings, generally
The end of coil windings is located between the both ends of skeleton, i.e., the length of coil windings be less than skeleton length, in this case, more than
The length of coil is the length of skeleton.
It further include that drawing in magnetic yoke is set as a kind of above-described further technical solution of electromagnetic coil assembly
String holes, the fairlead and inlaid hole are relatively independent hole between the two.Specifically, the above fairlead is as lead-out wires of coil
Setting area on this component, i.e., after several magnetic yokes series connection of this component, the fairlead of each magnetic yoke is in face relationship, each coil
Lead-out wire pass through the fairlead and be pierced by this component, as those skilled in the art, be mounted on for a certain certain coil
In specific magnetic yoke, the lead-out wire of the certain coil finally leads to the outside of this component by the fairlead in other magnetic yokes；
And it is directed to entire component, setting fairlead is required in not each magnetic yoke, as do not set in this component the lowermost magnetic yoke
Fairlead is set, the fairlead that length direction is parallel to magnetic yoke axis direction is respectively provided in other magnetic yokes, meanwhile, to avoid lead-out wire
It is exposed, be set as the upper and lower end that each fairlead runs through corresponding magnetic yoke, in this way, this component can by each lead-out wire of this component by
The a certain position in the upper end or middle part of component is drawn, and similarly, also only fairlead can not be arranged in the magnetic yoke of this component the top, this
Sample can be drawn lead-out wire by a certain position in the lower end of component or middle part.As those skilled in the art, the above fairlead can be adopted
Processed with drilling machine, specific processing method be may be configured as cutter axis direction it is parallel with the axis direction of magnetic yoke.Further,
The fairlead is further limiting for relatively independent hole with inlaid hole between the two, it is intended to so that fairlead and inlaid hole phase
It mutually separates, in this way, can effectively avoid when encapsulating layer is arranged, wearing when potting compound blocks fairlead and influences subsequent components assembly
Line operation, meanwhile, also can avoid when encapsulating obtains encapsulating layer, potting compound caused by being lost in fairlead waste potting compound or
Influence encapsulating effect.
For the heating conduction for improving encapsulating layer, heat conductive insulating particle is also inlaid in the encapsulating layer.The heat conductive insulating
Quartz sand, PPS polyphenylene sulfide, PA46 nylon etc. can be used in particle.
As a kind of specific implementation form of coil, the coil includes coil windings and skeleton, the material of the skeleton
For nonmetallic materials.
As another way of realization of coil, the coil includes coil windings and skeleton, and the skeleton includes in-seam
Frame, the inner frame is metal material, and the insulating materials as separation layer is additionally provided between inner frame and coil windings.This
In scheme, can components utilising metal material the heat resistance of this component is improved relative to the better heat resistance of nonmetallic materials.Together
When, using the insulating materials being additionally provided between inner frame and coil windings as separation layer, using the heat of insulating materials
Resistance reduces the heat for being transferred to this component by reactor coolant loop, achievees the purpose that coil temperature is effectively reduced.
It is easy to coat as one kind, setting, while there is the insulating materials of ideal heat-proof quality, the insulating materials is cloud
It is female.
To promote overhang heat-sinking capability, encapsulating layer is also covered on the overhang.Setting is located at coil
The encapsulating layer of end, it is intended to existing inlaid hole, end turn, magnetic yoke end machining accuracy be overcome to be not easy to guarantee the bottom of inlaid hole
The defect that can be bonded completely with overhang, overhang with magnetic yoke end, in this way, this programme may make two above
The hole of cooperation position is filled up by encapsulating layer, conducive to the heat dissipation effect of coil；Meanwhile after being provided with the above encapsulating layer, it is equivalent to
Encapsulating layer and the combination body length of both coils are controllable, in this way, it is slightly larger than the depth of corresponding inlaid hole using the above length,
When two adjacent magnetic yoke connections, the sealing of end turn is compressed and is used for using the encapsulating layer of the end.
Further, yoke material is using magnetic permeability and the higher material of heating conduction, and such as: carbon steel, pure iron, electromagnetism are pure
Iron, cast iron, martensitic stain less steel etc. can be further improved the heat dissipation effect of coil, help to realize that save reactor roof logical
The target of air cooling system.
Meanwhile this programme also discloses a kind of manufacturing method of electromagnetic coil assembly, the following steps carried out including sequence:
S1, coiling winding obtains coil on skeleton, will be in the inlaid hole of gained coil insertion magnetic yoke；
S2, the assembly being made of coil and magnetic yoke is subjected to whole encapsulating, between the hole wall and coil of inlaid hole
Space in obtain encapsulating layer.
In above method scheme, the entirety encapsulating is after combining with magnetic yoke coil and forming entirety, then is potted,
It is equivalent to after coil is packed into magnetic yoke and carries out whole encapsulating dipping lacquer again, in this way, it is split type with magnetic yoke that coil is different from the prior art
Structure design, process above method can obtain coil magnetic yoke assembly: the encapsulating that not only the two can be obtained by whole encapsulating
Layer closely bonds together, while in the radial and axial direction of coil, can accomplish it is seamless between the two, in this way,
The component that the not only good heat dissipation effect of coil is effectively reduced the temperature rise during coil working, while obtaining is different from existing skill
Art has better anti-seismic performance, i.e., after entirety encapsulating dipping lacquer, so that the mechanical strength of electromagnetic coil assembly, humidity, antidetonation
Performance greatly improves, and is conducive to the reliability for improving electromagnetic coil assembly, therefore the electromagnetic coil group that above method obtains in this way
Part has longer service life；
Further, it due to obtaining encapsulating layer using whole encapsulating in step s 2, is such as filled using dipping lacquer encapsulating, insulating cement
Envelope etc., after dipping lacquer, it is non-disconnectable that coil with magnetic yoke entirety encapsulating forms one, be different from the prior art coil and magnetic yoke it
Between gap in be arranged filler scheme, may make the gap smaller, in this way, obtained coil encapsulating layer is compared to filling
Object thickness is thinned, and more conducively radiates and reduce the outer dimension of magnetic yoke.
As a kind of above-described further technical solution of the manufacturing method of electromagnetic coil assembly, to make coil sides
Face each point all has through the good ability to radiate outward of magnetic yoke, in step sl, completes installation of the coil in inlaid hole
Afterwards, the coil flushes with the open end of inlaid hole close to one end of inlaid hole open end or is located in inlaid hole.In the present solution,
It may make and all have encapsulating layer between coil side each point and the hole wall of inlaid hole.
Potting compound packet used by the whole encapsulating is completed in step s 2 for the capacity of heat transmission for improving encapsulating layer
The heat conductive insulating particle for including impregnating varnish and being mixed in impregnating varnish.
The invention has the following advantages:
Electromagnetic coil assembly structure provided by the invention and the product for using manufacturing method provided by the invention to obtain have
Following characteristics:
1, component coil provided by the invention is convenient for the design feature of both magnetic yokes and method provided by the invention
Realize: coil is potted dipping lacquer after being packed into magnetic yoke again, and the good heat dissipation effect of gained component coil can effectively reduce electromagnetic wire
The operating temperature rise of coil assembly achievees the purpose that extend the electromagnetic coil assembly service life；
2, after encapsulating, so that the mechanical strength of electromagnetic coil assembly, humidity, anti-seismic performance greatly improve, electricity is improved
The reliability of magnetic coil assemblies；
3, after encapsulating, coil with magnetic yoke entirety encapsulating formed one it is non-disconnectable, may make fill seal coat thickness compared to biography
The filled layer thickness of system can suitably be thinned, more conducively the outer dimension of coil heat dissipation and diminution magnetic yoke.
Detailed description of the invention
Fig. 1 is in one specific embodiment of a kind of electromagnetic coil assembly of the present invention, and reflection coil is connect with magnetic yoke
The structural schematic diagram of relationship；
Fig. 2 is a kind of structural schematic diagram of one specific embodiment of electromagnetic coil assembly of the present invention.
Appended drawing reference in figure is successively are as follows: 1, magnetic yoke, 11, inlaid hole, 12, fairlead, 2, encapsulating layer, 3, coil, 4, bone
Frame.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, but structure of the invention be not limited only to it is following
Embodiment.
Embodiment 1:
As depicted in figs. 1 and 2, a kind of electromagnetic coil assembly, it is described including coil 3 and for the magnetic yoke 1 of damascene wiring 3
Inlaid hole 11 is provided in magnetic yoke 1, the coil 3 is installed in inlaid hole 11, and the depth of the inlaid hole 11 is equal to or more than
The length of coil 3 is also filled with encapsulating layer 2 in the space between the hole wall and coil 3 of the inlaid hole 11.
For a long time, three coils in nuclear power station CRDM electromagnetic coil assembly are encapsulated using independent coiling, encapsulating
And then the form being assemblied together with 4 pieces of magnetic yokes, therefore between coil and the mutually matched periphery of magnetic yoke inevitably
There are gap, this gap is unfavorable for coil and is radiated outward by magnetic yoke, can make coil inside temperature drift.Meanwhile alone about
Line, the coil integral strength of encapsulating are low, and moisture resistance and anti-seismic performance is not high.
In the prior art, for installing being spatially located between two neighboring magnetic yoke of same coil, it may be assumed that two adjacent magnetic
It is provided with inlaid hole on yoke, and the sum of hole depth of two inlaid holes is suitable with the length of coil, in assembly, completes
In the inlaid hole for the magnetic yoke that one end of coil is first embedded, at this point, the other end of coil is relative to described therein
One magnetic yoke evagination, then use and another magnetic yoke is covered into the means in the coil other end, while meeting the other end insertion of coil
Assembling form in another magnetic yoke inlaid hole completes the assembling of coil and magnetic yoke, and since special structure designs, coil with
Gap between magnetic yoke is at most only capable of filling up a part by insulating material, but the gap area that do not filled up completely is unfavorable for
Coil is radiated outward by magnetic yoke.Exist gradually to loosen meanwhile after coil is mounted among the inner cavity of magnetic yoke, when vibration and is
Coil, which is subjected to impact, provides possibility, so that the whole anti-seismic performance of electromagnetic coil assembly is poor.
In above scheme, the inlaid hole 11 is the inner cavity being provided in magnetic yoke 1, is set as the depth of inlaid hole 11
Equal to or more than the length of coil 3, it is intended to realize that coil 3 is close to 11 open end of inlaid hole after coil 3 is embedded in inlaid hole 11
End flush with the open end of inlaid hole 11 or be located in inlaid hole 11, be equivalent to by the faying face between adjacent magnetic yoke 1 by
The middle part of coil 3 has been transferred to the end of coil 3, thus can encapsulating mouth using the open end of inlaid hole 11 as potting compound, be real
Present electromagnetic coil assembly manufacturing process obtains encapsulating layer 2 and provides structural support, to realize hole wall and line in inlaid hole 11
Encapsulating layer 2 is obtained in space between circle 3.After completing the production of encapsulating layer 2, then the magnetic yoke 1 of coil 3 will be provided with, made
It is connected for the magnetic yoke sequence of electromagnetic coil assembly end cap, obtains the electromagnetic coil assembly that can apply to control rod drive mechanism.
The structure that this programme provides, due to using filled layer of the encapsulating layer 2 as space between magnetic yoke 1 and coil 3, with
Upper filled layer can be used as heat transfer medium, relative to existing directly for hole or containing the space of hole, be easy to implement 3 work of coil
Generated heat can be transmitted preferably by the heat transfer medium outward when making, and reach optimization electromagnetic coil assembly middle line
The effect of 3 heat dissipation of circle；Meanwhile the above structure is equivalent to encapsulating layer 2 as coil 3 and magnetic yoke 1 when electromagnetic coil assembly assembles
Between intermediate connector, both 3 magnetic yokes of coil 1 are connected as one, " coil magnetic yoke assembly " has been obtained, in this way, due to
Gap between coil 3 and magnetic yoke 1 is filled by encapsulating layer 2, in this way, the connection relationship of coil 3 and magnetic yoke 1 can when vibration
It leans on, will not gradually be loosened between the two because of coil 3 and magnetic yoke 1 and be that coil 3 is subjected to impact and provides possibility, so that this case offer
Electromagnetic coil assembly has good whole shock resistance.
To sum up, the heat dissipation effect of the component coil 3 can be significantly improved, and the mesh of 3 internal temperature of coil is effectively reduced
, meanwhile, modular construction provided above can greatly enhance the integral strength of electromagnetic coil assembly, reach and improve CRDM electromagnetic wire
The purpose of coil assembly reliability and service life.
In the present embodiment, the encapsulating layer 2 is after coil 3 is completely embedded into magnetic yoke 1, by between magnetic yoke 1 and coil 3
Hole in encapsulating impregnating varnish, the obtained separation layer and articulamentum between coil 3 and magnetic yoke 1；Magnetic yoke 1 is led using following
Magnetic rate and any one in the higher material of heating conduction: carbon steel, pure iron, electromagnetic pure iron, cast iron, martensitic stain less steel.
Embodiment 2:
As depicted in figs. 1 and 2, the present embodiment is further qualified on the basis of embodiment 1: as above-described one
The kind further technical solution of electromagnetic coil assembly, further includes the fairlead 12 being arranged in magnetic yoke 1, the fairlead 12 and edge
Embedding hole 11 is between the two relatively independent hole, and in the present embodiment, the fairlead 12 penetrates through the both ends of corresponding magnetic yoke 1, and draws
The axis direction of string holes 12 is parallel with the axis direction of magnetic yoke 1.
For the heating conduction for improving encapsulating layer 2, heat conductive insulating particle is also inlaid in the encapsulating layer 2.It is described thermally conductive exhausted
Quartz sand, PPS polyphenylene sulfide, PA46 nylon, glass powder, metal oxide ceramic etc. can be used in edge particle.It is preferred that using tool
There are a more preferable temperature tolerance and the better quartz sand glass powder of heat transfer property, metal oxide ceramic, in the present embodiment, leads
Thermal insulation particle is using the small quartz sand of thermal expansion coefficient or the silica sand without corner angle.
As a kind of specific implementation form of coil 3, the coil 3 includes 3 winding of coil and skeleton 4, the skeleton 4
Material is nonmetallic materials.
As another way of realization of coil 3, the coil 3 includes 3 winding of coil and skeleton 4, and the skeleton 4 includes
Inner frame, the inner frame is metal material, and the insulation material as separation layer is additionally provided between 3 winding of inner frame and coil
Material.In the present solution, can components utilising metal material the heat resistance of this component is improved relative to the better heat resistance of nonmetallic materials
Energy.Meanwhile using the insulating materials being additionally provided between 3 winding of inner frame and coil as separation layer, using insulation material
The thermal resistance of material reduces the heat for being transferred to this component by reactor coolant loop, reaches the mesh that 3 temperature of coil is effectively reduced
's.In the present embodiment, the material of skeleton 4 is all made of stainless steel.
It is easy to coat as one kind, setting, while there is the insulating materials of ideal heat-proof quality, the insulating materials is cloud
It is female.
For the end heat-sinking capability for promoting coil 3, encapsulating layer 2 is also covered on the end of the coil 3.
Embodiment 3:
The manufacturing method for present embodiments providing a kind of electromagnetic coil assembly, the following steps carried out including sequence:
S1,3 winding of coiling obtains coil 3 on skeleton 4, gained coil 3 is embedded in the inlaid hole 11 of magnetic yoke 1；
S2, the assembly being made of coil 3 and magnetic yoke 1 is subjected to whole encapsulating, in the hole wall of inlaid hole 11 and coil 3
Between space in obtain encapsulating layer 2.
It in above method scheme, is equivalent to after coil 3 is packed into magnetic yoke 1 and carries out whole encapsulating dipping lacquer again, in this way, being different from existing
There is technology coil 3 to design with the split type structure of magnetic yoke 1, process above method can obtain 3 magnetic yoke of coil, 1 assembly: not only
The encapsulating layer 2 that the two can be obtained by whole encapsulating closely bonds together, while in the radial and axial direction of coil 3,
Can accomplish it is seamless between the two, in this way, the not only good heat dissipation effect of coil 3, is effectively reduced in 3 course of work of coil
Temperature rise, while obtained component is different from the prior art with better anti-seismic performance, i.e., after entirety encapsulating dipping lacquer, so that electromagnetism
Mechanical strength, humidity, the anti-seismic performance of coil block greatly improve, and are conducive to improve the reliable of electromagnetic coil assembly in this way
Property, therefore the electromagnetic coil assembly that above method obtains has longer service life；
Further, due to obtaining encapsulating layer 2 using whole encapsulating in step s 2, dipping lacquer encapsulating, insulating cement are such as used
Encapsulating etc., after dipping lacquer, it is non-disconnectable that coil 3 with the whole encapsulating of magnetic yoke 1 forms one, be different from the prior art coil 3 with
The scheme of filler is set in the gap between magnetic yoke 1, may make the gap smaller, in this way, obtained 3 encapsulating layer 2 of coil
It is thinned compared to filler thickness, more conducively radiates and reduce the outer dimension of magnetic yoke 1.
Embodiment 4:
The present embodiment is further qualified on the basis of embodiment 3: passing through magnetic to all have 3 side each point of coil
The good ability to radiate outward of yoke 1 completes coil 3 after the installation in inlaid hole 11, the coil 3 leans in step sl
One end of nearly 11 open end of inlaid hole flushes with the open end of inlaid hole 11 or is located in inlaid hole 11.In the present solution, may make
Encapsulating layer 2 is all had between 3 side each point of coil and the hole wall of inlaid hole 11.
Potting compound packet used by the whole encapsulating is completed in step s 2 for the capacity of heat transmission for improving encapsulating layer 2
The heat conductive insulating particle for including impregnating varnish and being mixed in impregnating varnish.
The above content is combine specific preferred embodiment to the further description of the invention made, and it cannot be said that originally
The specific embodiment of invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs,
The other embodiments obtained in the case where not departing from technical solution of the present invention, should be included within the scope of the present invention.
Claims (9)
1. a kind of electromagnetic coil assembly, including coil (3) and it is used for the magnetic yoke (1) of damascene wiring (3), is set on the magnetic yoke (1)
It is equipped with inlaid hole (11), the coil (3) is installed in inlaid hole (11), which is characterized in that the depth of the inlaid hole (11)
Equal to or more than the length of coil (3), encapsulating is also filled in the space between the hole wall and coil (3) of the inlaid hole (11)
Layer (2)；
The encapsulating layer is as heat transfer medium；
It is filled by encapsulating layer in gap between coil and magnetic yoke.
2. a kind of electromagnetic coil assembly according to claim 1, which is characterized in that further include being arranged on magnetic yoke (1)
Fairlead (12), the fairlead (12) and inlaid hole (11) are relatively independent hole between the two.
3. a kind of electromagnetic coil assembly according to claim 1, which is characterized in that be also inlaid in the encapsulating layer (2)
Heat conductive insulating particle.
4. a kind of electromagnetic coil assembly according to claim 1, which is characterized in that the coil (3) includes coil windings
And skeleton (4), the material of the skeleton (4) are nonmetallic materials.
5. a kind of electromagnetic coil assembly according to claim 1, which is characterized in that the coil (3) includes coil windings
And skeleton (4), the skeleton (4) includes inner frame, and the inner frame is metal material, and between inner frame and coil windings also
It is provided with the insulating materials as separation layer.
6. a kind of electromagnetic coil assembly according to claim 5, which is characterized in that the insulating materials includes mica and has
Machine silicon lacquer.
7. a kind of electromagnetic coil assembly as claimed in any of claims 1 to 6, which is characterized in that the coil (3)
End on be also covered with encapsulating layer (2).
8. a kind of manufacturing method of electromagnetic coil assembly, which is characterized in that the following steps carried out including sequence:
S1, coiling winding obtains coil (3) on skeleton (4), by the inlaid hole of gained coil (3) insertion magnetic yoke (1)
(11) in；
S2, the assembly being made of coil (3) and magnetic yoke (1) is subjected to whole encapsulating, in the hole wall and line of inlaid hole (11)
Encapsulating layer (2) are obtained in space between circle (3)；The encapsulating layer is as heat transfer medium；
In step sl, coil (3) are completed after the installation in inlaid hole (11), the coil (3) is opened close to inlaid hole (11)
The one end at mouth end flushes with the open end of inlaid hole (11) or is located in inlaid hole (11).
9. a kind of manufacturing method of electromagnetic coil assembly according to claim 8, which is characterized in that in step s 2, complete
It include impregnating varnish and the heat conductive insulating particle being mixed in impregnating varnish at potting compound used by the whole encapsulating.
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| CN108257761B (en) * | 2018-01-16 | 2023-11-28 | 喻杰 | Control rod driving mechanism electromagnetic coil assembly and manufacturing method thereof |
| CN108231370A (en) * | 2018-01-23 | 2018-06-29 | 上海第机床厂有限公司 | Presurized water reactor control rod drive mechanism yoke coil device and its assembly method |
| CN109785984B (en) * | 2019-03-26 | 2024-02-20 | 中国原子能科学研究院 | Gripper position detection device and gripper part |
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| CN202930168U (en) * | 2012-11-29 | 2013-05-08 | 浙江迪克森电器有限公司 | A mutual inductor comprising connecting wires |
| CN105427997A (en) * | 2015-12-31 | 2016-03-23 | 黄曦雨 | Electromagnetic coil framework for reactor as well as inner framework and outer casing on electromagnetic coil framework |
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| CN2442364Y (en) * | 2000-09-14 | 2001-08-08 | 上海电机(集团)公司先锋电机厂 | Insulation encapsulated coil |
| JP2004186464A (en) * | 2002-12-04 | 2004-07-02 | Mitsubishi Material Cmi Kk | Solenoid |
| CN205154959U (en) * | 2015-11-20 | 2016-04-13 | 长沙伟福机电产品有限公司 | Stopper excitation coil |
| CN206601998U (en) * | 2017-04-19 | 2017-10-31 | 黄曦雨 | A kind of novel electromagnetic wire coil assembly |
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| CN202930168U (en) * | 2012-11-29 | 2013-05-08 | 浙江迪克森电器有限公司 | A mutual inductor comprising connecting wires |
| CN105427997A (en) * | 2015-12-31 | 2016-03-23 | 黄曦雨 | Electromagnetic coil framework for reactor as well as inner framework and outer casing on electromagnetic coil framework |
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