CN208240437U - A kind of inductance element - Google Patents
A kind of inductance element Download PDFInfo
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- CN208240437U CN208240437U CN201820379483.4U CN201820379483U CN208240437U CN 208240437 U CN208240437 U CN 208240437U CN 201820379483 U CN201820379483 U CN 201820379483U CN 208240437 U CN208240437 U CN 208240437U
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- magnetic core
- magnetic
- center pillar
- flatwise coil
- slot
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Abstract
The utility model discloses a kind of inductance elements, including magnetic core, the flatwise coil on the center pillar of the magnetic core and the magnetic plastic sealing being covered on the magnetic core and the flatwise coil, two electrodes being connected with two exits of the flatwise coil are exposed to outside the magnetic plastic sealing, wherein the flatwise coil is arranged such that form the width direction of the flat wire of the flatwise coil perpendicular to the axial direction of the center pillar of the magnetic core, and flat wire layer stackup in the axial direction of the center pillar is set.The flatwise coil winding method of the inductance element of the utility model can reduce the height dimension of product in the case where obtaining same DCR, be thinned product more.
Description
Technical field
The utility model relates to a kind of inductance elements.
Background technique
With the rapidly development of internet, the requirement to IC technical is higher and higher, and integrated, miniaturization is history hair
The trend of exhibition, while power-type inductors are generally required to be miniaturization, slimming, high frequency, low DCR, high current, low EMI
(electromagnetic interference) and low manufacturing cost.Traditional handicraft type power inductance, if the coiling of round wires flying trident, flat wire are to around to product
Height has certain requirement, cannot adequately utilize the limited space of power inductance.
For the power inductance in conventional coil spot welding and material frame, easily there is phenomena such as rosin joint in solder joint, and solder joint is embedded in
In magnet, also easily occur open circuit, short circuit phenomenon in pressing process.
For traditional integrated inductance, before this by coil as in empty die cavity, then fills out powder and suppressed, it is difficult to ensure that
Coil can be easy offset in the position of design, coil, and product space utilization rate is low.
Traditional inductance coil is made using flat wire to by the way of, and this winding method is that the width direction of flat wire is flat
For row in the axial direction of magnetic core center pillar, but since product has certain requirement to DCR, the width of flat wire determines that the limit of product is high
Degree, while the general width minimum of flat wire is 1.5 times of thickness, causes product height too low.
The disclosure of background above technology contents is only used for utility model design and the technical side that auxiliary understands the utility model
Case not necessarily belongs to the prior art of present patent application, shows above content in this patent Shen in no tangible proof
In the case that the applying date please has disclosed, above-mentioned background technique should not be taken to the novelty and creativeness of evaluation the application.
Utility model content
The main purpose of the utility model is that in view of the deficiencies of the prior art, providing a kind of inductance element.
To achieve the above object, the utility model uses following technical scheme:
A kind of inductance element including magnetic core, the flatwise coil on the center pillar of the magnetic core and is covered in described
Magnetic plastic sealing on magnetic core and the flatwise coil, the two electrodes exposure being connected with two exits of the flatwise coil
Outside the magnetic plastic sealing, wherein the flatwise coil is arranged such that form the width side of the flat wire of the flatwise coil
To the axial direction of the center pillar perpendicular to the magnetic core, and flat wire layer stackup in the axial direction of the center pillar is set.
Further, the global shape of the magnetic core is T font, rod type or I-shaped.
Further, the cross sectional shape of the magnetic core center pillar be square, rectangle, ellipse, circle or racetrack.
Further, the magnetic core is T shaped magnetic core, and the T shaped magnetic core includes inferior lobe and the institute for connecting the inferior lobe
Magnetic core center pillar is stated, for the flatwise coil on the magnetic core center pillar, the magnetic plastic sealing is coated on the flatwise coil
And on the magnetic core, but the outside of the inferior lobe of the magnetic core and at least part of bottom be exposed to it is outer so that the electricity is arranged
Pole.
Further, the magnetic core is I-type magnetic core, and the I-type magnetic core is containing upper leaf, inferior lobe and connection upper leaf
Magnetic core center pillar between the inferior lobe, the flatwise coil is on the magnetic core center pillar, the magnetic plastic sealing cladding
On the flatwise coil and the magnetic core, the outside of the inferior lobe of the magnetic core and at least part of bottom be exposed to it is outer with
The electrode is just set.
Further, the bottom setting of the magnetic core is formed with metalization layer in the slot electrode there are two slot electrode, around
Two exits of the flatwise coil on the center pillar of the magnetic core receive one in described two slot electrodes respectively
In person, the exit is fixed in the slot electrode by way of spot welding；Alternatively, the side and bottom of the magnetic core are all provided with
Set there are two slot electrode, be formed with metalization layer in the slot electrode, two slot electrodes of the side of the magnetic core respectively with institute
Two slot electrodes for stating the bottom of magnetic core are connected by the metalization layer, are wound on described flat on the center pillar of the magnetic core
Two exits of flat coil are received respectively in one of two slot electrodes of side of the magnetic core, and the exit passes through
The mode of spot welding is fixed in the slot electrode.
The utility model has the following beneficial effects:
In the inductance element of the utility model, flatwise coil is arranged such that form the width of the flat wire of the flatwise coil
Direction is spent perpendicular to the axial direction of the center pillar of the magnetic core, and flat wire layer stackup in the axial direction of the center pillar is set,
To be different from traditional axial winding method for making the width direction of flat wire be parallel to magnetic core center pillar, the width of flat wire
Degree determines the height of product, the utility model using make the width direction of flat wire perpendicular in magnetic core center pillar it is axial around
Mode processed, the thickness of flat wire determines the height of product, and the width minimum of flat wire is 1.5 times of thickness, same obtaining
In the case where DCR, the flatwise coil winding method of the inductance element of the utility model can preferably reduce the height gauge of product
It is very little, it is thinned product more.By this method, coil winding is formed on preformed core, fixes coil, in the later period
When molding/injection molding, coil is not deviated, is deformed, and has given full play to the useful space of magnet, while keeping the consistency of product more preferable.
The pin of coil directly forms electrode, substantially reduces open circuit risk, and the reliability of product is higher.The utility model can provide magnetic conductance
The biggish magnetic core for example between 40~500 of rate, when reaching inductance identical with molding integrated inductance, this
The utility model pressure molded for magnetic plastic sealing can suitably reduce, such as 0~300MPa.The function of the utility model
The slimming of rate inductor product and small form factor requirements internal coil line footpath are thinner, the molding pressure of magnetic plastic sealing in the utility model
It is strong smaller, therefore be more suitable for realizing the slimming and miniaturization of power inductance product.
It is aforementioned quite widely to elaborate the feature and technical advantage of the utility model, so as to more fully understand
The detailed description of the utility model.The other feature and advantage of the utility model will be described below.
Detailed description of the invention
Fig. 1 is the T font preformed core schematic diagram of the utility model embodiment；
Fig. 2 is the T shaped magnetic core bottom electrode slot schematic diagram of the utility model embodiment；
Fig. 3 is that the coil of the utility model embodiment (T shaped magnetic core) is wound on the built-in winding signal of formation on preformed core
Figure；
Fig. 4 is the magnetic plastic sealing schematic diagram after molding of the utility model embodiment (T shaped magnetic core)；
Fig. 5 is the finished product outline drawing of T the utility model embodiment (T shaped magnetic core)；
Fig. 6 is the I-shaped preformed core schematic diagram of the utility model embodiment；
Fig. 7 is the utility model embodiment (I-type magnetic core) coiling flatwise coil schematic diagram；
Fig. 8 is that vertical be wound on preformed core of the utility model embodiment (I-type magnetic core) coil forms showing for built-in winding
It is intended to；
Fig. 9 is the magnetic plastic sealing product schematic diagram after molding of the utility model embodiment (I-type magnetic core).
Specific embodiment
The utility model is described in further detail in conjunction with attached drawing by the following examples.It is emphasized that
Following the description is only exemplary, rather than in order to limit the scope of the utility model and its application.Those skilled in the art
It should be understood that the concept and specific embodiment that disclose are used to modify or design other knots based on being easily used as
Structure is to complete the identical purpose of the utility model.Those skilled in the art it should also be appreciated that this equivalent construction not
Deviate the spirit and scope of the utility model.It is considered as the novel features of the utility model feature, structure and running side
Method and further objects and advantages will be better understood when from description below and in conjunction with attached drawing.However, it should deep
Recognize that each feature provided is merely to description and explanation, the definition without being intended to limitation the utility model in ground.
Refering to fig. 1 to Fig. 9, in one embodiment, a kind of inductance element, including magnetic core 100,200, wound on described
Flatwise coil 110,210 on the center pillar 105,203 of magnetic core 100,200 and it is covered in the magnetic core and the flatwise coil
110, the magnetic plastic sealing 108,205 on 210, two exits 106,107,201,202 with the flatwise coil 110,210
Two connected electrodes are exposed to outside the magnetic plastic sealing 108,205, wherein the flatwise coil 110,210 is arranged such that
The width direction of the flat wire of the flatwise coil 110,210 is formed perpendicular to the axis of the center pillar 105,203 of the magnetic core
To, and flat wire layer stackup in the axial direction of the center pillar 105,203 is set.
In a preferred embodiment, the magnetic plastic sealing 108,205 passes through molded or formed in a manner of gluing.
In a preferred embodiment, the magnetic plastic sealing 108,205 include magnetic powder particle, organic adhesion agent, lubricant and
Curing agent.
In further preferred embodiments, the material of the magnetic powder particle may include (but being not limited to) MnZn, nickel zinc,
Carbonyl iron dust, iron-nickel alloy, iron silicon, iron silicochromium, iron sial, molybdenum perm, any one or more in nanocrystalline, amorphous.
In further preferred embodiments, the organic adhesion agent may include (but being not limited to) epoxy resin, silicone resin,
Furfural resin, polyimides, polyphenylene sulfide, any one or more in melamine resin.
In further preferred embodiments, the lubricant may include (but being not limited to) stearic acid, aluminum stearate, tristearin
Sour magnesium, calcium stearate, any one or more in zinc stearate,
In further preferred embodiments, the curing agent may include (but being not limited to) amino resins.
Refering to fig. 1 to Fig. 9, in a preferred embodiment, the global shape of the magnetic core 100,200 can be (but being not limited to)
T font, rod type or I-shaped.
In a preferred embodiment, the cross sectional shape of the magnetic core center pillar can be (but being not limited to) square, rectangle, ellipse
Round, round or racetrack.
Refering to fig. 1 to Fig. 5, in a preferred embodiment, the magnetic core 100 can be T shaped magnetic core, the T font
Magnetic core includes inferior lobe 109 and the magnetic core center pillar 105 for connecting the inferior lobe, and the flatwise coil 110 is wound on the magnetic core
On center pillar 105, the magnetic plastic sealing 108 is coated on the flatwise coil and the magnetic core, but the inferior lobe of the magnetic core
Outside and bottom at least part be exposed to it is outer so that the electrode is arranged.
Refering to Fig. 6 to Fig. 9, in a further advantageous embodiment, the magnetic core 200 can be I-type magnetic core, the work
Shaped magnetic core is described containing the magnetic core center pillar 203 between upper leaf 207, inferior lobe 204 and connection upper leaf 207 and the inferior lobe 204
For flatwise coil 210 on the magnetic core center pillar 203, the magnetic plastic sealing 205 is coated on the flatwise coil and institute
It states on magnetic core, the outside of the inferior lobe of the magnetic core and at least part of bottom are exposed to outer so that the electrode is arranged.
In a preferred embodiment, there are two slot electrode 103,104, the slot electrodes for the bottom setting of the magnetic core
103, metalization layer is formed in 104, be wound on two exits point of the flatwise coil on the center pillar of the magnetic core
It does not receive in one of described two slot electrodes 103,104, the exit is fixed on the electrode by way of spot welding
In slot 103,104.
In a further advantageous embodiment, the side and bottom of the magnetic core be respectively provided with there are two slot electrode 101,102,
103,104, metalization layer, two slot electrodes of the side of the magnetic core are formed in the slot electrode 101,102,103,104
101,102 are connected with two slot electrodes 103,104 of the bottom of the magnetic core by the metalization layer respectively, are wound on the magnetic
Two exits of the flatwise coil on the center pillar of core receive two slot electrodes of the side of the magnetic core respectively
101, in one of 102, the exit is fixed in the slot electrode by way of spot welding.
Refering to fig. 1 to Fig. 8, a kind of manufacturing method of the inductance element, comprising the following steps:
A. preformed core and the coiling flatwise coil on the center pillar of the magnetic core, by two exits of the flatwise coil
It is connected respectively on two electrodes being arranged on the magnetic core；
B. magnetic plastic sealing is covered on the magnetic core and the flatwise coil, and makes the institute being connected with the flatwise coil
Electrode is stated to be exposed to outside the magnetic plastic sealing；
When wherein winding the flatwise coil in step a, so that the width direction of flat wire is perpendicular to the magnetic core
The axial direction of the center pillar, and flat wire layer stackup in the axial direction of the center pillar is set, to form the flatwise coil.
In some preferred embodiments, step b includes: to prepare magnetic plastic packaging material, and magnetic powder contained by the magnetic plastic sealing is
Passivated and insulation processing carbonyl iron dust, it is preferable that the partial size D50 of carbonyl iron dust is 4 μm；The magnetic of the magnetic plastic sealing
Powder solid content is between 60~90wt%；The organic binder uses silicone resin and epoxy resin, and content is in 10~40wt%
Between；Preferably, the curing agent is amino resins, it is preferable that the dosage of the curing agent is preferably silicone resin content
6wt%；Preferably, total weight 0.2wt% magnesium stearate is also added, is uniformed；It is logical using prepared magnetic plastic packaging material
It crosses moulding technology and forms the magnetic plastic sealing in the periphery of the coil, it is preferable that briquetting pressure is 0~100MPa, then
Solidify the organic principle in the magnetic plastic sealing by 150 DEG C/1H baking.
In other preferred embodiments, step b includes: to prepare magnetic plastic packaging material, magnetic powder contained by the magnetic plastic sealing
For passivated and insulation processing FeSiCr metal soft magnetic powder, it is preferable that the partial size D50 of FeSiCr metal soft magnetic powder is 30 μm；
The solid content of the magnetism plastic packaging material magnetic powder is between 80~97wt%；The organic binder uses silicone resin, content 3~
Between 20wt%；Preferably, the curing agent is amino resins, it is preferable that the dosage of the curing agent is that the silicone resin contains
The 6wt% of amount；The magnetic plastic packaging is formed in the periphery of the coil by moulding technology using prepared magnetic plastic packaging material
Layer, it is preferable that briquetting pressure is 100~300MPa, is then made by 150 DEG C/1H baking organic in the magnetic plastic sealing
Ingredient solidification.
In certain embodiments, the small-size product of 1.0*0.5*0.65mm can be made.Pass through coiling side above-mentioned
Flat wire is wound on the center pillar of prefabricated magnetic core by formula, forms flatwise coil, and pin closes at defined position.The pin is logical
The mode for crossing spot welding, is fixed in slot electrode.Slot electrode can be in the side of magnetic core, can also be in the bottom surface of magnetic core.Magnetic plastic packaging material
It can be covered on magnetic core and coil by stating molded or gluing mode, the pin of coil is exposed to outer.It is wherein described
Magnetic plastic sealing may include magnetic powder particle, organic adhesion agent, lubricant and curing agent etc..The material of the magnetic powder particle can be
MnZn, nickel zinc, carbonyl iron dust, iron-nickel alloy, iron silicon, iron silicochromium, iron sial, molybdenum perm, any one in nanocrystalline, amorphous or
It is a variety of.The organic adhesion agent can be epoxy resin, silicone resin, furfural resin, polyimides, polyphenylene sulfide, melamine resin
In any one or more.Lubricant includes stearic acid, aluminum stearate, magnesium stearate, calcium stearate, zinc stearate, but unlimited
In the type.Wherein the preformed core can be according to selection ferrite or soft magnetic metal in actual fabrication demand and properties of product
Material can also be converted arbitrarily in shape.Preformed core can be by existing known and blanket injection molding, compression moulding or engraving
Cutting Process completes.Its coil can be on preformed core in coiling in situ formed in the setting of preformed core
Set coil windings.Another way is first to make coil, then again by coil be placed on preformed core formed internal coil around
Group.
The global shape of the preformed core can be T font, rod type or I-shaped；The magnetic core center pillar cross sectional shape can
To be square, rectangle, ellipse, circle or racetrack.
The preformed core can be T shaped magnetic core, and the T shaped magnetic core contains inferior lobe and magnetic core center pillar, the magnetic plastic
A part (side for extending magnetic core center pillar including I-shaped pedestal) of sealing cladding inferior lobe and the magnetic core center pillar,
The outside of the inferior lobe of the magnetic core and bottom-exposed are outside.
The preformed core may be I-type magnetic core, and the I-type magnetic core contains upper leaf, inferior lobe and magnetic core center pillar, institute
It states magnetic plastic sealing and coats the upper leaf of the magnetic core and a part and center pillar of inferior lobe, the outside and bottom of the inferior lobe of the magnetic core
Portion is exposed to outer.
T font or I-shaped magnetic core bottom may be provided with two slot electrodes, and preferably two slot electrodes are arranged in parallel, the electricity
It is formed with metalization layer in the slot of pole, two exits of the coil being wound on the magnetic core center pillar are received respectively in two slot electrodes
In one.Alternatively, there are two slot electrodes for described I-shaped or T shaped magnetic core side setting, there are two the bottom settings of magnetic core
Slot electrode/electrode layer, is formed with metalization layer in the slot electrode, two slot electrodes of the side of magnetic core by metalization layer with
Two slot electrode/electrode layers of the bottom of magnetic core are connected, and are wound on two exits point of the flatwise coil on the magnetic core center pillar
It does not receive in one of two slot electrodes of the side of magnetic core.
Make example 1
As shown in Figure 1, the T shaped magnetic core that FeSiCr material is made in a compression moulding technique can be used, it is preferable that magnetic conductance
Rate 40~150,10000~15000mT of saturation flux.Preferably, as shown in Fig. 2, it is parallel that the bottom of the magnetic core is provided with two
Slot electrode 103,104, side are provided with two hanging wire slots or slot electrode 101,102.Preferably pass through sputtering technology shape in slot electrode
At metalization layer.
Coil winding machine can be used and carry out coiling on the center pillar 105 of above-mentioned T shaped magnetic core.As shown in Figure 3, it is preferable that coil
After the completion of product, the exit 106,107 of coil is received in slot electrode 103,104.
Fig. 4 is molding finished goods schematic diagram after the encapsulating of magnetic glue.It winds magnetic by molded covering on the magnetic core of line
Plastic packaging layer 108.Magnetic plastic sealing 108 coats the center pillar 105 of the magnetic core and a part (upper surface) of lower blade 109, described
The bottom-exposed of the lower blade of magnetic core is outside.
Contained magnetic powder is preferably carbonyl iron dust in magnetic plastic sealing 108, and original powder is passivated and insulation processing, partial size D50 are excellent
It is selected as 4 μm；Magnetic plastic packaging material magnetic powder solid content is preferably between 60~90wt%；Organic binder preferably uses silicone resin and ring
Oxygen resin, content is preferably between 10~40wt%；Curing agent is preferably amino resins, and the dosage of curing agent is preferably silicone resin
The 6wt% of content；It is preferred that also adding total weight 0.2wt% magnesium stearate, uniformed.Use prepared magnetic plastic packaging
Material, by forming magnetic plastic sealing on moulding technology magnetic core and coil shown in Fig. 3, briquetting pressure is preferably 0~
Then 100MPa toasts preferably through 150 DEG C/1H, solidifies the organic principle in plastic packaging layer.Preferably, finally melt copper metal
The modes such as change/PVD sputtering form SMD external electrode terminals 111.Fig. 5 show the outline drawing of preferred embodiment finished goods.
Make example 2
As shown in fig. 6, stamping of powder technique, which also can be used, is made the I-shaped preformed core of metal soft magnetic alloy, it is preferable that
Magnetic conductivity 40~90,10000~15000mT of saturation flux, the I-shaped preferred carbonyl iron dust of type magnetic core material.
The pedestal of the prefabricated I-type magnetic core can be cuboid, as shown in fig. 7, coil winding machine shape can be first passed through in prefabricated magnetic
Coiling flatwise coil on the center pillar 203 of core, there are two exit 201,202, two exits 201,202 to bend respectively tightly for tool
Paste 204 two sides of lower blade of I-type magnetic core.Then, two exits 201,202 are welded on to the gold of side by Laser Welding
Categoryization layer forms the structure as shown in Fig. 7.
Fig. 8 is that magnetic rubberised layer 205 wraps up flatwise coil schematic diagram.Fig. 9 is molding finished goods schematic diagram.Around making line
Magnetic glue layer 205 is covered by gluing on the I-type magnetic core of circle.
Contained magnetic powder is preferably FeSiCr metal soft magnetic powder in magnetic plastic sealing 205, and original powder is passivated and insulation processing, grain
Diameter D50 is 30 μm.Magnetic plastic packaging material magnetic powder solid content is preferably between 80~97wt%；Organic binder preferably uses silicon tree
Rouge, content is preferably between 3~20wt%；Curing agent is preferably amino resins, and the dosage of curing agent is preferably silicone resin content
6wt%.Using prepared magnetic plastic packaging material, magnetic plastic sealing 205 is formed in coil windings periphery by moulding technology, at
Type pressure is preferably 100~300MPa, then solidifies north sealing organic principle preferably through 150 DEG C/1H baking.Preferably,
Conducting resinl finally is coated at the solder joint of exit 201,202, forms conductive layer 206 after being heating and curing.Fig. 9 show preferred reality
Apply the outline drawing of a finished goods.
The inductance element kind of the utility model is suitable for digital camera, mobile phone, computer, television set, set-top box, game
The electronic products such as machine, automotive electronics, LED illumination.The power inductance product have slimming, miniaturization, high reliablity it is excellent
Point.
The above content is specific/preferred embodiment further detailed description of the utility model is combined, no
It can assert that the specific implementation of the utility model is only limited to these instructions.For the common skill of the utility model technical field
For art personnel, without departing from the concept of the premise utility, the embodiment that these have been described can also be made
Some replacements or modifications, and these substitutions or variant all shall be regarded as belonging to the protection scope of the utility model.In this theory
In the description of bright book, reference term " a kind of embodiment ", " preferred embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.Although the embodiments of the present invention and its advantage is described in detail, it is to be understood that, it is not departing from
In the case where the embodiment spirit and scope being defined by the following claims, can carry out herein various changes, replacement and
Change.In addition, the scope of the utility model is not limited to process described in the specification, machine, manufacture, material composition, hand
The specific embodiment of section, method and steps.One ordinarily skilled in the art will readily appreciate that can use execution with it is described herein
The corresponding essentially identical function of embodiment or obtain with the essentially identical result of embodiment described herein presently, there are or later want
The above-mentioned disclosure of exploitation, process, machine, manufacture, material composition, means, method or step.Therefore, appended claims are intended to
These processes, machine, manufacture, material composition, means, method or step are embraced within their scope.
Claims (6)
1. a kind of inductance element, which is characterized in that including magnetic core, the flatwise coil on the center pillar of the magnetic core and cover
The magnetic plastic sealing being placed on the magnetic core and the flatwise coil, two to be connected with two exits of the flatwise coil
Electrode is exposed to outside the magnetic plastic sealing, wherein the flatwise coil is arranged such that form the flat wire of the flatwise coil
Width direction perpendicular to the magnetic core the center pillar axial direction, and flat wire layer stackup in the axial direction of the center pillar
It sets.
2. inductance element as described in claim 1, which is characterized in that the global shape of the magnetic core is T font, rod type or work
Font.
3. inductance element as claimed in claim 1 or 2, which is characterized in that the cross sectional shape of the magnetic core center pillar is square,
Rectangle, ellipse, circle or racetrack.
4. inductance element as described in claim 1, which is characterized in that the magnetic core is T shaped magnetic core, the T shaped magnetic core
The magnetic core center pillar including inferior lobe and the connection inferior lobe, the flatwise coil is on the magnetic core center pillar, the magnetic
Property plastic packaging layer is coated on the flatwise coil and the magnetic core, but at least the one of the outside of the inferior lobe of the magnetic core and bottom
It is partially exposed at outer so that the electrode is arranged.
5. inductance element as described in claim 1, which is characterized in that the magnetic core is I-type magnetic core, the I-shaped magnetic
Core is containing the magnetic core center pillar between upper leaf, inferior lobe and connection upper leaf and the inferior lobe, and the flatwise coil is wound on the magnetic
On core center pillar, the magnetic plastic sealing is coated on the flatwise coil and the magnetic core, the outside of the inferior lobe of the magnetic core
And at least part of bottom be exposed to it is outer so that the electrode is arranged.
6. inductance element as claimed in claim 1 or 2, which is characterized in that the bottom of the magnetic core is arranged there are two slot electrode,
It is formed with metalization layer in the slot electrode, is wound on two exits of the flatwise coil on the center pillar of the magnetic core
It is received in one of described two slot electrodes respectively, the exit is fixed in the slot electrode by way of spot welding；
Alternatively, the side and bottom of the magnetic core are respectively provided with there are two slot electrode, metalization layer, the magnetic are formed in the slot electrode
Two slot electrodes of the side of core are connected with two slot electrodes of the bottom of the magnetic core by the metalization layer respectively, are wound on
Two exits of the flatwise coil on the center pillar of the magnetic core receive two electricity of the side of the magnetic core respectively
In one of pole slot, the exit is fixed in the slot electrode by way of spot welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820379483.4U CN208240437U (en) | 2018-03-20 | 2018-03-20 | A kind of inductance element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820379483.4U CN208240437U (en) | 2018-03-20 | 2018-03-20 | A kind of inductance element |
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| CN208240437U true CN208240437U (en) | 2018-12-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389679A (en) * | 2018-03-20 | 2018-08-10 | 深圳顺络电子股份有限公司 | A kind of inductance element and manufacturing method |
| CN109378182A (en) * | 2018-12-19 | 2019-02-22 | 合肥博微田村电气有限公司 | Integrated inductance and its manufacturing method |
| CN114068152A (en) * | 2021-12-14 | 2022-02-18 | 苏州邦鼎新材料有限公司 | A high-performance and high-quality integrated inductive element structure and its manufacturing method |
-
2018
- 2018-03-20 CN CN201820379483.4U patent/CN208240437U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389679A (en) * | 2018-03-20 | 2018-08-10 | 深圳顺络电子股份有限公司 | A kind of inductance element and manufacturing method |
| CN109378182A (en) * | 2018-12-19 | 2019-02-22 | 合肥博微田村电气有限公司 | Integrated inductance and its manufacturing method |
| CN114068152A (en) * | 2021-12-14 | 2022-02-18 | 苏州邦鼎新材料有限公司 | A high-performance and high-quality integrated inductive element structure and its manufacturing method |
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