CN106169354B - Reactor device and electric/electronic device - Google Patents
Reactor device and electric/electronic device Download PDFInfo
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- CN106169354B CN106169354B CN201610200599.2A CN201610200599A CN106169354B CN 106169354 B CN106169354 B CN 106169354B CN 201610200599 A CN201610200599 A CN 201610200599A CN 106169354 B CN106169354 B CN 106169354B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15308—Amorphous metallic alloys, e.g. glassy metals based on Fe/Ni
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/255—Magnetic cores made from particles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dispersion Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Soft Magnetic Materials (AREA)
- Insulating Of Coils (AREA)
Abstract
The present invention provides reactor device and possesses the electric/electronic device of the reactor device.The reactor device possesses：Reactor main body, it possesses core body annular in shape under top view and is wound in the coil of core body；House the housing of reactor main body；And the encapsulant between reactor main body and housing is filled in, core body is made up of the press-powder core body for possessing the powder compact formed to the material press molding comprising Magnaglo, and core body has：With the part being inserted into coil and mark off two line parts of linear magnetic circuit and setting is connected with each end of line part and marks off two kinks of the magnetic circuit of bending, encapsulant possesses：The second encapsulant between the first encapsulant between kink and housing and at least a portion positioned at line part and housing, the Young's modulus of the first encapsulant are lower than the Young's modulus of the second encapsulant.
Description
Technical field
The present invention relates to reactor device and possesses the electric/electronic device of the reactor device.
Background technology
The reactor device used in the booster circuit of hybrid motor vehicle etc., generating, transformer possesses：By ring
The reactor main body that the core body of shape is formed with the coil for being wound in core body；House the housing of reactor main body；And it is filled in electricity
Encapsulant between anti-device main body and housing (referring for example to patent document 1, patent document 2).
When reactor device is applied in alternating current when in use, due to the Magnetostrictive Properties of core body, make core body root
Deformed periodically according to the change of alternating current, vibration, heat are produced from reactor main body.Encapsulant is required to be subjected to
Vibration firmly from the reactor main body, the environment (such as motor vehicle) placed by reactor device are applied to reactor device
Vibration, so as to which reactor main body is fixed on into housing.
Citation
Patent document 1：Japanese Unexamined Patent Publication 2012-142379 publications
Patent document 2：Japanese Unexamined Patent Publication 2014-224189 publications
As shown in patent document 2, the encapsulant filled between reactor main body and housing is formed in the following way：
In the state of reactor main body is contained in housing, formed to (note type) curability is irrigated between reactor main body and housing
Thing, solidify curability constituent, be consequently formed encapsulant.Go out from the viewpoint that reactor main body is firmly fixed to housing
Hair, preferably encapsulant uses hard material, specifically using the high material of Young's modulus.However, hard can be formed
Volume contraction when the curability constituent of encapsulant is because of solidification can apply stronger compression to the core body of reactor main body should
Power.When core body is by stronger compression stress, magnetic characteristic, especially iron loss to reactor main body have undesirable effect.Should
Trend is especially pronounced in the case where reactor main body possesses press-powder core body.
As one of method for avoiding causing this influence, consider that use is difficult to apply compression stress to core body in solidification
Material as forming the curability constituent of encapsulant.However, in this case, the encapsulant as solidfied material
As soft material (the low material of Young's modulus), shaking because of the vibration from reactor main body or outside reactor device
Danger that is dynamic and making reactor main body be come off from housing increases.
The content of the invention
The present invention completes in view of the foregoing, its object is to a kind of, there is provided reactor device and possesses the reactance
The electric/electronic device of device device, following effect can be realized：Reduce generation reactor main body in use and come off this from housing
The possibility of one problem, and suppress the decline of the magnetic characteristic of reactor device.
In order to solve the above-mentioned technical problem the mode of the invention provided is a kind of reactor device, and it possesses：Electricity
Anti- device main body, it possesses core body annular in shape under top view and is wound in the coil of the core body；Housing, it houses the electricity
Anti- device main body；And encapsulant, it is filled between the reactor main body and the housing, the reactor device
Be characterised by, the core body is made up of press-powder core body, the press-powder core body possess to the material press molding comprising Magnaglo and
Into powder compact, the core body has：Two line parts, described two line parts have the part being inserted into the coil,
And mark off linear magnetic circuit；And two kinks, each end of described two kinks and the line part are continuous
Set, and mark off the magnetic circuit of bending, the encapsulant possesses：First between the kink and the housing is close
Closure material；And the second encapsulant between at least a portion positioned at the line part and the housing, described first is close
The Young's modulus of closure material is lower than the Young's modulus of second encapsulant.
When carrying out cure shrinkage for forming the curability constituent of encapsulant, suffered by the core body of reactor main body
Compression stress effect to caused by the magnetic characteristic of reactor device changed according to the shape of core body.In the shape of core body
Shape be complicated shape in the case of, compared with the situation for being shaped as the better simply shape such as bar-shaped of core body, have to magnetic characteristic,
Effect becomes big trend especially to caused by iron loss.
On the other hand, in the present invention, by be located at shape annular in shape under top view in a manner of the magnetic circuit for marking off closure
Encapsulant between core body and housing is divided into situation (the second sealing material for the part (line part) for marking off linear magnetic circuit
Material) and mark off non-linear shape and bending magnetic circuit part (kink) situation (the first encapsulant), second sealing
Material is the material of relative harder (Young's modulus is high), and the first encapsulant is the material of relatively soft (Young's modulus is low).By
It is made up of in the second encapsulant hard material, therefore, it is possible to which reactor main body is firmly fixed at into housing.For forming the
The curability constituent of two encapsulants applies larger compression stress to core body by cure shrinkage, but due to close by second
The core that closure material is fixed is line part, and therefore, the magnetic characteristic of reactor device is difficult to occur caused by the line part
Deterioration.Because the first few encapsulant of relatively soft and cure shrinkage influence is located at having compared with complicated shape in core body
Between kink and housing, therefore, the magnetic characteristic of reactor device is difficult to deteriorate caused by the kink of core body.This is
Because when applying identical power to line part and kink, the stress in kink influenceed to caused by core body it is very big, by
The deterioration of this magnetic characteristic is also larger, therefore, according to the opinion, reduces the influence of the stress applied to kink.Therefore, upper
In the reactor device involved in the present invention stated, the electricity caused by forming the cure shrinkage of curability constituent of encapsulant
The deterioration of the magnetic characteristic of anti-device device is difficult to produce.
From the easness grade of operability, the curability constituent for being preferably used to form encapsulant includes resin system material
Material.It is therefore preferable that first encapsulant and second encapsulant include resin based material.
Second encapsulant can also include filler.As described above, the Young's modulus of the second encapsulant is than
The Young's modulus of one encapsulant is high, as the scheme for improving the Young's modulus, uses the filling being made up of inorganic based material etc.
Agent is particularly easy.
It is preferred that the Young's modulus of second encapsulant is more than 5GPa.By second encapsulant, more surely
Surely reactor main body is fixed on housing.
It is preferred that the Young's modulus of first encapsulant is below 50MPa.Reason curability constituent shape can be reduced
The degree of the compression stress applied into cure shrinkage during the first encapsulant to kink.
The Magnaglo can also be included from by Fe-Si-B systems alloy, Fe-P-C systems alloy and Co-Fe-Si-B systems
The powder for the one or more kinds of noncrystalline magnetic materials selected in the group that alloy is formed.Due to noncrystalline magnetic material ratio
Compared with hard, therefore, in the case where Magnaglo includes the powder of noncrystalline magnetic material, hold when being applied with external force to core body
Easily accumulation is deformation.The deformation accumulated in core body easily causes bad shadow to the magnetic characteristic for possessing the reactor device of the core body
Ring.However, as described above, in reactor device involved in the present invention, it is used between reactor main body and housing
The cure shrinkage for forming the curability constituent of encapsulant is difficult to make the magnetic characteristic of reactor device to deteriorate.Therefore, exist
In reactor device involved in the present invention, even if including the situation of noncrystalline magnetic material in the Magnaglo contained by core body
Under, magnetic characteristic is also difficult to deteriorate.
The noncrystalline magnetic material can also be made up of Fe-P-C systems alloy.The magnetostriction constant of above-mentioned material is sometimes
It is higher, but even such case, the magnetic characteristic of reactor device involved in the present invention are also difficult to deteriorate.
Above-mentioned powder compact, which can also contain, makes the Magnaglo be bonded in the other materials contained by the powder compact
Bonding component.In the case of with bonding component, it is easier to make powder compact keep shape.In addition, bonding component sometimes
Preferentially deformed between Magnaglo, in this case, it is difficult to deformation is accumulated in Magnaglo.Above-mentioned bonding component preferably wraps
Containing the composition formed based on resin material.
As another way, the present invention provides the electric and electronic for being provided with above-mentioned reactor device involved in the present invention
Equipment.
Invention effect
According to the present invention, there is provided the reactor device of following effect can be realized：Reduce and produce reactor in use
Main body comes off the possibility of this problem from housing, and suppresses the decline of the magnetic characteristic of reactor device.In addition, also provide tool
The electric/electronic device of standby above-mentioned reactor device.
Brief description of the drawings
Fig. 1 is the stereogram for the shape for schematically illustrating the reactor device involved by one embodiment of the present invention.
Fig. 2 is the shape for schematically illustrating the reactor device possessed core body involved by one embodiment of the present invention
Top view.
Fig. 3 is the top view for the shape for schematically illustrating the reactor device involved by one embodiment of the present invention.
Fig. 4 be schematically illustrate in order to stress caused by core body in embodiment to iron loss caused by influence evaluated and
The figure of the structure of the sample used.
Fig. 5 is the curve of result obtained from showing to influence to evaluate to caused by stress caused by core body to iron loss
Figure.
Fig. 6 (a), (b) be schematically illustrate to it is implementing in embodiment, to core body apply external force application form made to iron loss
Into the figure of method evaluated of influence.
Fig. 7 is to show to influence knot obtained from evaluating to caused by the application form for applying external force to core body to iron loss
The curve map of fruit.
Description of reference numerals：
100 reactor devices
10 core bodys
11a, 11b kink
12a, 12b line part
15 coils
20 reactor main bodys
30 housings
40 encapsulants
The encapsulant of 41a, 41b first
42 second encapsulants
MP magnetic circuits
Embodiment
Hereinafter, embodiments of the present invention are described in detail.
Fig. 1 is the stereogram for the shape for schematically illustrating the reactor device involved by one embodiment of the present invention.Such as Fig. 1
Shown, reactor device 100 possesses：Reactor main body 20, it possesses core body 10 annular in shape under top view and is wound in core
The coil 15 of body 10；House the housing 30 of reactor main body 20；And it is filled in close between reactor main body 20 and housing 30
Closure material 40.
Core body 10 is made up of press-powder core body, the press-powder core body possess to comprising Magnaglo material carry out press molding and
Obtained powder compact.Fig. 2 is the top view for the shape for schematically illustrating the possessed core body 10 of reactor device 100.By press-powder core
The core body 10 that body is formed is annular in shape under vertical view, as shown in Fig. 2 marking off the magnetic circuit MP of closure.Core body 10 has：With insertion
To the part in coil 15 and mark off two line parts 12a, 12b of linear magnetic circuit；It is and each with line part 12a, 12b
From end continuously set and mark off two kinks 11a, 11b of the magnetic circuit of bending.Core body 10 shown in Fig. 2 is by a pressure
Powder is formed, but is not limited to this.It can also be made up of multiple powder compacts.As such example, line part 12a, 12b are enumerated
And kink 11a, 11b are made up of independent powder compact respectively, and it is monolithically fabricated core body annular in shape under top view
Example.
The species for forming the Magnaglo of powder compact does not limit.The magnetic material for forming Magnaglo is roughly divided into knot
Crystalloid magnetic material and noncrystalline magnetic material.
As long as crystalline magnetic material meets that the condition of crystalline (is determined by common X-ray diffraction, obtained can be true
Determine in the degree of material category have clear and definite peak value difraction spectrum) and be ferromagnetic, especially soft-magnetic body bar
Part, then specific species is not limited.As the concrete example of crystalline magnetic material, Fe-Si-Cr systems alloy is enumerated, Fe-Ni systems close
Gold, Fe-Co systems alloy, Fe-V systems alloy, Fe-Al systems alloy, Fe-Si systems alloy, Fe-Si-Al systems alloy, carbonyl iron and pure
Iron.Above-mentioned crystalline magnetic material can be made up of a kind of material, can also be made up of multiple material.
It is that amorphous condition (is determined by common X-ray diffraction, do not obtained in energy that as long as noncrystalline magnetic material, which meets,
Enough determine that there is the difraction spectrum of clear and definite peak value in the degree of material category) and be ferromagnetic, especially soft-magnetic body
Condition, then specific species is not limited.As the concrete example of noncrystalline magnetic material, Fe-Si-B systems alloy, Fe-P-C systems are enumerated
Alloy and Co-Fe-Si-B systems alloy.Above-mentioned noncrystalline magnetic material can be made up of a kind of material, can also be by a variety of
Material is formed.
If specifically illustrating composition example for the Fe-P-C systems alloy of one as above-mentioned noncrystalline magnetic material, enumerate
Composition formula is by Fe100 atom %-a-b-C-x-y-z-tNiaSnbCrcPxCyBzSitRepresent and for the atom % of 0 atom %≤a≤10,0 atom %
The atom % of the atom % of the atom % of≤b≤3,0 atom %≤c≤6,6.8 atom %≤x≤10.8,2.2 atom %≤y≤9.8 are former
The atom % of the atom % of sub- %, 0 atom %≤z≤4.2,0 atom %≤t≤7 Fe base amorphous alloys.In above-mentioned composition formula
In, Ni, Sn, Cr, B and Si are arbitrary addition element.
In the case where having used noncrystalline magnetic material, compared with using the situation of crystalline magnetic material, basic
Trend is can to reduce the iron loss of reactor device.On the other hand, due to containing magnetostriction constant than crystalline magnetic material
Big material, therefore, possesses the pressure being made up of the powder compact of the Magnaglo comprising noncrystalline magnetic material in reactor device
In the case of powder core body, the cure shrinkage of curability constituent easily impacts to the iron loss of reactor device.Even if at this
In the case of kind, in the case of the reactor device 100 involved by one embodiment of the present invention, due to using a variety of curability
The encapsulant 40 that constituent solidification forms, and these encapsulants, therefore, curability are configured in consistent manner with the shape of core body
The cure shrinkage of constituent is difficult to impact iron loss.
The shape of Magnaglo is not defined, can be it is spherical can also be non-spherical.In the case of for non-spherical,
Can be the such shape with shape anisotropy of flakey, oval spherical, droplet-like, needle-like or special
Unsetting shape without shape anisotropy.As the example of unsetting powder, enumerate multiple globular powders to connect
Mode combine or the situation about combining in a manner of being locally embedded to other powder.The shape of Magnaglo can be in manufacture magnetic
Property powder stage obtained shape or the shape as obtained from carrying out secondary operation to the Magnaglo produced
Shape.As the former shape, spherical, oval spherical, droplet-like, needle-like etc. are exemplified, as the shape of the latter, exemplifies scale
Shape.
The size of Magnaglo is not also defined.In when having carried out laser diffraction, scattering particle size distribution measuring
It is worth footpath D50, exemplifies more than 0.1 μm and less than 100 μm, it is sometimes preferred to is more than 1 μm and less than 50 μm.
Powder compact preferably comprises the bonding component for the other materials for making Magnaglo be bonded in contained by powder compact sometimes.Make
For bonding component, the material of usually used insulating properties.Thereby, it is possible to improve the insulating properties as powder compact.As the insulating properties
Material, the thermal decomposition residues for exemplifying resin material and resin material (in this specification, they are referred to as " based on tree
Fat material and the composition formed ".) etc. organic based material, inorganic based material etc..From the viewpoint of productivity etc., bonding component
It is preferable comprising the composition formed based on resin material.As resin material, exemplify acrylic resin, silicone resin,
Epoxy resin, phenol resin, urea resin, melmac etc..The bonding component being made up of inorganic based material illustrates water outlet glass
The glass based material such as glass.Bonding component can be made up of a kind of material, can also be made up of multiple material.Bonding component can also
It is the mixture of organic based material and inorganic based material.
Powder compact is formed by press molding in the manner described above.The condition of the press molding is not defined.According to
Material for forming powder compact is formed and suitably set.As stressed concrete example, enumerate more than 0.1GPa and 10GPa with
Under.It can be heated, can also be pressurizeed at normal temperatures in press molding.Can also be to the formed body after press molding
Heated.By being heated to formed body, the deformation applied in press molding to Magnaglo can be relaxed sometimes.Heating
Condition is set properly according to the composition of formed body.As the concrete example of heating condition, enumerate with 200 DEG C to 500 DEG C of temperature
Degree is kept for 10 minutes to 10 hours.
Coil 15 around line part 12a, 12b by will be rolled up respectively by the winding line formed by insulation-coated conductor
Coiled and form.Conductor is adapted to, using metal materials such as copper, copper alloys, in insulation-coated be adapted to using resins such as enamel
Based material.The section shape of winding line is not defined.Exemplify circle, ellipse, rectangle etc..Can be in the straight line of core body 10
Convolute coil 15 in portion 12a, 12b entire scope, it is possible to have unwound part.
Housing 30 has the container-like shape of one side opening, and reactor main body 20 is housed inside it.Housing 30 it is interior
Portion can also use following structure：Make reactor main body 20 difficult with the sag and swell being coincide with the shape of reactor main body 20
To be moved inside housing 30.The one side of the opening of housing 30 can also partly be covered.The constituent material of housing 30 not by
Limit.The preferably excellent material of exothermicity, from this viewpoint, suitably using metal materials such as aluminium, aluminium alloys.
Encapsulant 40 is fixed on housing 30 between reactor main body 20 and housing 30, and by reactor main body 20.
In the reactor device 100 involved by one embodiment of the present invention, encapsulant 40 possesses：Positioned at kink 11a, 11b
First encapsulant 41a, 41b between housing 30；And at least a portion positioned at line part 12a, 12b and housing 30 it
Between the second encapsulant 42.Moreover, poplar of first encapsulant 41a, 41b Young's modulus than second encapsulant 42
Family name's modulus is low.It should be noted that as shown in figure 3, in reactor device 100, the second encapsulant 42 is located at line part
Between 12a, 12b entirety and housing 30.
In this way, by make around kink 11a, 11b positioned at core body encapsulant (the first encapsulant 41a,
It is 41b) different from the encapsulant (the second encapsulant 42) around line part 12a, 12b, following effect can be obtained
Fruit.
That is, because kink 11a, 11b are different from line part 12a, 12b and have complicated shape, therefore, positioned at curved
When curability constituent around folding part 11a, 11b shrinks, the direction of the external force applied to kink 11a, 11b turn into comprising
It is multi-direction including direction as shearing core body.Therefore, even if the external force applied to kink 11a, 11b is small, also easily increase
Add the iron loss for the reactor device for possessing core body.
On the other hand, set by the encapsulant (first encapsulant 41a, 41b) being pointed to around kink 11a, 11b
Relatively low Young's modulus, so as to be difficult to apply external force to kink 11a, 11b during cure shrinkage, thus, it is possible to suppress because first is close
The increase of the iron loss of reactor device 100 caused by closure material 41a, 41b cure shrinkage.
The concrete numerical value of first encapsulant 41a, 41b Young's modulus is not defined.In view of kink 11a, 11b
Shape and composition, the characteristic of curability constituent etc. for forming first encapsulant 41a, 41b, be suitably set as energy
Enough reduce the influence to caused by the iron loss of reactor device 100.If the illustration not being defined, the first encapsulant
41a, 41b Young's modulus are preferably below 100MPa, more preferably below 50MPa, especially preferably below 10MPa.From drop
From the viewpoint of the low influence to caused by the iron loss of reactor device 100, first encapsulant 41a, 41b Young mould is not set
The lower limit of amount.In the case where first encapsulant 41a, 41b Young's modulus is too low, even if improving second in the following manner
The Young's modulus of encapsulant 42, the also trend occasionally there are reactor main body 20 relative to the fixation destabilization of housing 30.
Therefore, first encapsulant 41a, 41b Young's modulus is preferably more than 0.1MPa sometimes, sometimes more preferably more than 1MPa.
Because the cure shrinkage of the curability constituent around line part 12a, 12b is difficult to reactor device
100 iron loss impacts, therefore, can be at the part reliably by improving the Young's modulus of the second encapsulant 42
Carry out fixation of the reactor main body 20 relative to housing 30.
The concrete numerical value of the Young's modulus of second encapsulant 42 is not defined.In view of line part 11a, 11b shape
Shape and composition, the characteristic of curability constituent for forming the second encapsulant 42 etc., being suitably set as can be reliably
Reactor main body 20 is fixed on housing 30.If the illustration not being defined, the Young mould of the second encapsulant 42
Amount is preferably more than 1GPa, especially preferably more preferably more than 5GPa, more than 20GPa.The Young mould of second encapsulant 42
The lower limit of amount is not defined.In the case where the Young's modulus of the second encapsulant 42 is too high, pass through the institute of reactor device 100
Caused or vibration for being applied in etc., occasionally there are the trend that crack is easily produced in the second encapsulant 42.Therefore,
The Young's modulus of two encapsulants 42 is preferably below 100GPa sometimes, sometimes more preferably below 70GPa.
As long as the composition of first encapsulant 41a, 41b composition and the second encapsulant 42 meets and above-mentioned poplar respectively
The related condition of family name's modulus, then be not defined especially.From the viewpoint of left-hand seat easiness, operability are high, preferably first is close
Closure material 41a, 41b and the second encapsulant 42 include resin based material.In this case, for forming a certain encapsulant
Curability constituent also turn into the material containing curable resin.As this resin material, exemplify：Epoxy resin, silicon
The thermosetting resins such as ketone resin, phenol resin, melmac；And the tool such as polyphenylene sulfide (PPS), liquid crystal polymer (LCP)
There is the thermoplastic resin of heat resistance (softening point is high)；The crosslinking agents such as isocyanates system are added into thermoplastic resins such as polyester (PE)
And improve the material of curability etc..In addition, curability constituent can also contain by aluminum oxide, silica, silicon nitride, nitrogen
Change the filler that the inorganic based material such as aluminium, boron nitride, carborundum is formed.By the curability constituent for making such filler
Amount changes, and can adjust the Young's modulus of encapsulant 40.
As the concrete example not limited first encapsulant 41a, 41b composition, enumerate as the thermosetting of softer
Property resin silicone resin be used as curable resin main component and by aluminum oxide be used as filler example.As not to
The concrete example that the composition of two encapsulants 42 limits, enumerates and is used as solidification using as the epoxy resin of the thermosetting resin compared with hard
Property resin main component and by aluminum oxide be used as filler example.
As the electric/electronic device for being provided with reactor device 100, the conversion for being assembled with reactor device 100 is exemplified
Device.The converter that the buck of voltage is carried out especially in hybrid motor vehicle, electric motor vehicle is on-vehicle parts, because
This, high reliability is especially required to a side of the easily external force such as vibrated.Reactance involved by one embodiment of the present invention
In device device 100, it is difficult to iron to reactor device 100 for forming the cure shrinkage of curability constituent of encapsulant 40
Damage impacts, and inside it, reactor main body 20 is firmly fixed at housing 30.Even if in addition, to reactor device
In the case that 100 are applied with external force, due in kink 11a, the 11b easily to be caused damage by external force image, positioned at it
The Young's modulus of the encapsulant (first encapsulant 41a, 41b) of surrounding is low, therefore, applies to reactor device 100 outer
Power is difficult to be delivered to kink 11a, 11b.Therefore, the reactor device 100 involved by one embodiment of the present invention is adapted to use
Make the converter of vehicle-mounted purposes.
【Embodiment】
Hereinafter, using embodiment etc., further the present invention is specifically illustrated, but the scope of the present invention is not limited to
These embodiments etc..
(1) making of Fe base amorphous alloys powder
To form by Fe74.28 atom %Cr1.56 atom %P8.78 atom %C2.62 atom %B7.57 atom %Si5.19 atom %The mode of composition weighs original
Material, the powder of noncrystalline magnetic material has been made using water atomization." the wheat strange gram particle degree point manufactured using Ji Zhuan companies
Cloth determines device MT3300EX ", and the size distribution of the powder of resulting noncrystalline magnetic material is determined according to volume distributed median,
50% cumulative path (Second Intermediate Value footpath d2) D50 in the cumulative particle size distribution of volume reference is 5~20 μm.
(2) making of pelletizing
The Quality Mgmt Dept of Magnaglo 97.7 that the above-mentioned powder by noncrystalline magnetic material is formed and by acrylic acid tree
The Quality Mgmt Dept of insulating properties binding material 2.0, the Quality Mgmt Dept of lubricant 0.3 of fat composition are mixed in as the water of solvent and obtain slurry.
Resulting slurry is crushed after the drying, using the sieve that mesh is 300 μm, obtained by having passed through 300 μm
The pelletizing that the powder of mesh is formed.
(3) compression molding
Resulting pelletizing is filled in mould, press molding is carried out with face pressure 1.77Gpa, obtained with external diameter
The formed body of 20.7mm × internal diameter 12.4mm × thickness 6.8mm ring-type.And another mould is filled in, with face pressure 1.77Gpa
Press molding is carried out, obtains the formed body of square column shape for having that bottom surface is 10mm × 10mm and height is 48mm.
(4) it is heat-treated
Resulting formed body is placed in respectively in the stove of nitrogen stream environment, by in-furnace temperature from room temperature (23 DEG C) with 10
DEG C/min programming rate be heated to 370 DEG C, and kept for one hour at such a temperature, then, carry out being cooled to room temperature in stove
Heat treatment.In this way, obtain the powder compact of ring-type and bar-shaped powder compact.
(test example 1) iron loss Pcv measure
As shown in figure 4, end face is installed on the annular core element that the powder compact by the ring-type made through the above way is formed
(it is thickness direction and circumferencial direction to determine direction) strain gauge at totally three at (measure direction be radially) at one, side two,
The stress of annular core element can be put on to determine based on the signal from these strain gauges.Will be to the annular core element respectively one
Loop coil and BH analyzers (Yan Qi communication equipments company obtained from the secondary circle of side winding 15, the coated copper cash of the circle of secondary side winding 10
" SY-8218 " of manufacture) connection, iron loss Pcv (units can be determined：kW/m3).In this condition, it is close in effective maximum magnetic flux
Degree Bm is 100mT, measure frequency determines iron loss Pcv, a reference value Pcv0 as iron loss under conditions of being 100kHz.
Loop coil is configured in the container of loop coil that can house, by the curability constituent comprising epoxy system resin
(also referred to as " curability constituent I ".) or comprising silicon system resin curability constituent (also referred to as " curability constituent II ".)
Inject in container, and container is integrally heated and makes resin solidification.In the state of in resin solidification, based at three
The signal of strain gauge, calculate the mean stress applied to annular core element.As a result, confirm the species because of resin, press-powder
Particle diameter distribution of body etc. is different and applies different compression stresses.Basic trend is, consolidates the Young's modulus of solidfied material is low
In the case of the property changed constituent II, compression stress is low, and (stress value is negative value and close to zero.), it is high in the Young's modulus of solidfied material
Curability constituent I in the case of, turning into higher compression stress, (stress value is negative value and away from zero.).In addition, effective
Peakflux density Bm is 100mT, measure frequency determines the iron loss Pcv of loop coil under conditions of being 100kHz.According to
To iron loss Pcv obtain increment rate of the above-mentioned iron loss relative to a reference value Pcv0.Basic trend is, in the Young of solidfied material
In the case of the low curability constituent II of modulus, iron loss Pcv increment rate is low, in the high curability of the Young's modulus of solidfied material
In the case of constituent I, iron loss Pcv increment rate uprises.
In the side convolute coil for the press-powder core body being made up of above-mentioned bar-shaped powder compact, and with the end of My World in future
The mode that the magnetic flux in face is oriented to the end face of the opposing party installs ferrite yoke, by obtained inductor and (the rugged communication of rock of BH analyzers
" SY-8218 " of machine company manufacture) connection, so as to determine iron loss Pcv (units：kW/m3).In this condition, iron is determined
Damage Pcv is used as a reference value Pcv0 of iron loss.
Above-mentioned inductor is installed on cupping machine in a manner of it can be compressed to the both ends of the surface of press-powder core body, made
Put on the compression stress change of the both ends of the surface of press-powder core body and determine iron loss Pcv.Press-powder core body is put on as a result, working as
When the compression stress of both ends of the surface becomes big, the increment rate of iron loss also uprises.
Fig. 5 shows the result of the above.As shown in figure 5, measurement result for the press-powder core body of ring-type and for bar-shaped
The measurement result of press-powder core body the trend that uprises of increment rate of the iron loss when compression stress caused by core body increases is shown,
The above results can be approximately integrally substantial linear (Fig. 5 dotted lines).
(test example 2)
It is identical with test example 1, by manufacturing the above-mentioned toroid for possessing the annular core element being made up of the powder compact of ring-type
Circle, and be connected with BH analyzers (" SY-8218 " of the manufacture of Yan Qi communication equipments company) and iron loss Pcv (units can be determined：
kW/m3).In this condition, determined under conditions of effective peakflux density Bm is 100mT, measure frequency is 100kHz
Iron loss Pcv is used as a reference value Pcv0 of iron loss.
As shown in Fig. 6 (a) or (b), loop coil is configured at cupping machine, is directed to respectively at (a) with radially
The situation that the situation (annulus load) and (b) that the mode of application external force configures configure in a manner of through-thickness applies external force
(end face load), while external force is applied using above-mentioned condition (effective peakflux density Bm as 100mT, measure frequency be
Iron loss Pcv 100kHz) is determined, and how the increment rate for determining iron loss changes according to the external force applied.
As a result, as shown in fig. 7, confirm that external force influences the situation in annulus load to caused by the increment rate of iron loss
Under, 10 times bigger than the situation of end face load or so.
Result more than, confirms in press-powder core body there is simple shape as linear magnetic circuit marking off
At the part of shape, the increase of external force will not make the increased degree of iron loss become big, and have marking off as the magnetic circuit of bending
At the part of complicated shape, the increase of external force easily increases iron loss.Therefore, as reactor device involved in the present invention that
Sample, by making the Young's modulus of encapsulant and the local shape of core body positioned at reactor main body correspondingly change, it can press down
Make the iron loss increase of the reactor device because of caused by the cure shrinkage for the curability constituent for forming encapsulant.
Industrial applicibility
The reactor device of the present invention can suitably be used as transformer, chokes as the commutator assemble of vehicle-mounted purposes
The inductors such as coil.
Claims (10)
1. a kind of reactor device, it possesses：
Reactor main body, it possesses core body annular in shape under top view and is wound in the coil of the core body；
Housing, it houses the reactor main body；And
Encapsulant, it is filled between the reactor main body and the housing,
The core body is made up of press-powder core body, and the press-powder core body possesses the pressure formed to the material press molding comprising Magnaglo
Powder,
The core body has：Two line parts, described two line parts have the part being inserted into the coil, and mark off
Linear magnetic circuit；And two kinks, each end of described two kinks and the line part are continuously set, and draw
The magnetic circuit of bending is separated,
The reactor device is characterised by,
The encapsulant possesses：The first encapsulant between the kink and the housing；And positioned at described
The second encapsulant between at least a portion of line part and the housing,
The Young's modulus of first encapsulant is lower than the Young's modulus of second encapsulant.
2. reactor device according to claim 1, it is characterised in that
First encapsulant and second encapsulant include resin based material.
3. reactor device according to claim 1 or 2, it is characterised in that
Second encapsulant includes filler.
4. reactor device according to claim 1 or 2, it is characterised in that
The Young's modulus of first encapsulant is below 50MPa.
5. reactor device according to claim 1 or 2, it is characterised in that
The Young's modulus of second encapsulant is more than 5GPa.
6. reactor device according to claim 1 or 2, it is characterised in that
The Magnaglo is included from being made up of Fe-Si-B systems alloy, Fe-P-C systems alloy and Co-Fe-Si-B systems alloy
The powder for the one or more kinds of noncrystalline magnetic materials selected in group.
7. reactor device according to claim 6, it is characterised in that
The noncrystalline magnetic material is made up of Fe-P-C systems alloy.
8. reactor device according to claim 1 or 2, it is characterised in that
The powder compact contains the bonding component for the other materials for making the Magnaglo be bonded in contained by the powder compact.
9. reactor device according to claim 8, it is characterised in that
The bonding component includes the composition formed based on resin material.
A kind of 10. electric/electronic device, it is characterised in that
The electric/electronic device is provided with the reactor device described in claim 1 or 2.
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| JP2015-102844 | 2015-05-20 | ||
| JP2015102844A JP6502173B2 (en) | 2015-05-20 | 2015-05-20 | Reactor device and electric / electronic equipment |
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| CN106169354B true CN106169354B (en) | 2018-01-30 |
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| JP (1) | JP6502173B2 (en) |
| KR (1) | KR101839677B1 (en) |
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| CN111602215B (en) * | 2018-01-17 | 2022-10-14 | 株式会社田村制作所 | Electric reactor |
| CN111276311B (en) * | 2020-02-18 | 2021-07-09 | 北京科技大学 | Fe-B-P-C-Cu-N-Cr amorphous nanocrystalline magnetically soft alloy and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1989654A (en) * | 2005-08-04 | 2007-06-27 | 株式会社村田制作所 | Coil antenna |
| CN101517667A (en) * | 2006-09-19 | 2009-08-26 | 丰田自动车株式会社 | Reactor core and reactor |
| CN102473510A (en) * | 2009-07-31 | 2012-05-23 | 住友电气工业株式会社 | Reactor and reactor-use components |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02123714A (en) * | 1988-11-02 | 1990-05-11 | Murata Mfg Co Ltd | Choke coil |
| JP4862751B2 (en) * | 2007-06-05 | 2012-01-25 | トヨタ自動車株式会社 | Reactor and manufacturing method thereof |
| WO2010067414A1 (en) * | 2008-12-09 | 2010-06-17 | トヨタ自動車株式会社 | Reactor and method for manufacturing the same |
| JP2010272584A (en) * | 2009-05-19 | 2010-12-02 | Toyota Motor Corp | Reactor |
| JP5658485B2 (en) | 2010-06-03 | 2015-01-28 | Ｎｅｃトーキン株式会社 | Magnetic element |
| JP6072443B2 (en) * | 2011-08-04 | 2017-02-01 | アルプス電気株式会社 | Inductor manufacturing method |
| JP2013219160A (en) * | 2012-04-09 | 2013-10-24 | Alps Green Devices Co Ltd | Compound type reactor |
| JP5929725B2 (en) * | 2012-11-22 | 2016-06-08 | 株式会社オートネットワーク技術研究所 | Reactor, converter, and power converter |
| JP5853989B2 (en) * | 2013-05-16 | 2016-02-09 | 信越化学工業株式会社 | Thermally conductive silicone adhesive composition for reactor and reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1989654A (en) * | 2005-08-04 | 2007-06-27 | 株式会社村田制作所 | Coil antenna |
| CN101517667A (en) * | 2006-09-19 | 2009-08-26 | 丰田自动车株式会社 | Reactor core and reactor |
| CN102473510A (en) * | 2009-07-31 | 2012-05-23 | 住友电气工业株式会社 | Reactor and reactor-use components |
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| CN106169354A (en) | 2016-11-30 |
| KR20160137360A (en) | 2016-11-30 |
| JP2016219591A (en) | 2016-12-22 |
| JP6502173B2 (en) | 2019-04-17 |
| TWI585792B (en) | 2017-06-01 |
| KR101839677B1 (en) | 2018-03-16 |
| TW201643907A (en) | 2016-12-16 |
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