CN108701531A - A kind of assembly type inductance and its manufacturing method - Google Patents
A kind of assembly type inductance and its manufacturing method Download PDFInfo
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- CN108701531A CN108701531A CN201880000301.0A CN201880000301A CN108701531A CN 108701531 A CN108701531 A CN 108701531A CN 201880000301 A CN201880000301 A CN 201880000301A CN 108701531 A CN108701531 A CN 108701531A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000011230 binding agent Substances 0.000 claims abstract description 45
- 238000004804 winding Methods 0.000 claims abstract description 36
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 230000035699 permeability Effects 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 15
- 229910000859 α-Fe Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 229910003962 NiZn Inorganic materials 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 230000005389 magnetism Effects 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 8
- 239000011265 semifinished product Substances 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000011162 core material Substances 0.000 description 124
- 230000008901 benefit Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/043—Fixed inductances of the signal type with magnetic core with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)
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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
- H01F27/255—Magnetic cores made from particles
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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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
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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
- H01F41/02—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 for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
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- Coils Or Transformers For Communication (AREA)
Abstract
A kind of assembly type inductance and its manufacturing method, the assembly type inductance includes cap magnetic core, T shape magnetic cores, conductive winding and a pair of of hardware assembly, the inside of cap magnetic core forms fluted, conductive winding is wound on the center pillar of T shape magnetic cores, in groove inside center pillar and conductive winding the merging cap magnetic core of T shape magnetic cores, there are the gaps of predetermined space distance between the center pillar of T shape magnetic cores and the bottom of the groove of cap magnetic core, form air gap, hardware assembly is fixed on cap magnetic core, and it is electrically connected with conductive winding formation, it is fixed between cap magnetic core and T shape magnetic cores by being at least filled in the binder of the bottom section of the groove inside cap magnetic core, the binder for being filled in the bottom section of the groove inside cap magnetic core fills air gap.A kind of manufacturing method of assembly type inductance is additionally provided herein.A kind of achievable batch automatic production is provided as a result, and keeps the assembly type inductance and its manufacturing method of high-performance stability.
Description
The present invention relates to magnetic electron parts, it is manifestly that is related to a kind of assembly type inductance and its manufacturing method.
It is also more and more harsh to inductance requirement with industry, the fast development of vehicle electronics.Existing assembly type inductance is primarily present following problems:
One, assembly type inductance needs to carry out centering control air gap to keep the stabilization of inductance；
Two, the dimensional tolerance of core material needs to carry out strict control to being electrically affected；
Three, automation centering control air gap difficulty is larger, is mainly carried out using automanual mode.
The above problem encountered is prior art urgent problem to be solved.
Summary of the invention
It is a primary object of the present invention in view of the deficiencies of the prior art, provide a kind of assembly type inductance and its manufacturing method, solve the problems, such as that existing assembly type inductance air gap is difficult to control.
To achieve the above object, the invention adopts the following technical scheme:
A kind of assembly type inductance, including cap magnetic core, T shape magnetic core, conductive winding and a pair of of hardware assembly, the inside of the cap magnetic core forms fluted, the conductive winding is wound on the center pillar of the T shape magnetic core, in the center pillar of the T shape magnetic core and the conductive groove inside the merging cap magnetic core, there are the gaps of predetermined space distance between the bottom of the groove of the center pillar of the T shape magnetic core and the cap magnetic core, form air gap, the hardware assembly is fixed on the cap magnetic core, and it is electrically connected with conductive winding formation, it is fixed between the cap magnetic core and the T shape magnetic core by being at least filled in the binder of the bottom section of the groove inside the cap magnetic core, the binder of the bottom section of the groove inside the cap magnetic core is filled in by the gas Gap filling.
Further, the hardware assembly is fixed on the cap magnetic core by binder.
Further, the material of the T shape magnetic core and cap magnetic core is NiZn ferrite, and relative permeability is 350~500, and the interval of the air gap is in 0.25mm~0.45mm.
Further, the material of the T shape magnetic core is alloyed powder, and relative permeability is 45~60, and the material of the cap magnetic core is NiZn ferrite, and relative permeability 350~500, the interval of the air gap is in 0.15mm~0.25mm.
Further, the material of the T shape magnetic core is MnZn ferrite, and relative permeability 2000~3500, the material NiZn ferrite of the cap magnetic core, relative permeability 350~500, the interval of the air gap is in 0.30mm~0.50mm.
Further, the material of the T shape magnetic core and the cap magnetic core is alloyed powder, and for relative permeability 45~60, the width of the air gap is not more than 0.20mm.
Further, the binder for being filled in the bottom section of the groove inside the cap magnetic core is epoxy systems binder, relative permeability 1.
Further, it is filled in the soft magnetism powder granule that spherical or almost spherical are mixed in the binder of the bottom section of the groove inside the cap magnetic core.
Further, the relative permeability of the binder of the bottom section of the groove inside the cap magnetic core is filled in 1.5~6.0.
A method of the assembly type inductance is made, is included the following steps:
Conductive winding is wound on the center pillar of T shape magnetic core；
In the interior grooves of the cap magnetic core, until being less than the bottom section filling adhesive of the groove；
Assemble the T shape magnetic core and the cap magnetic core, the center pillar of the T shape magnetic core and the conductive winding are placed in the groove of the cap magnetic core, to form the air gap filled by the binder between the T shape magnetic core and the cap magnetic core in the inside of the T shape magnetic core；
A pair of of hardware assembly is fixed on the cap magnetic core, and forms the hardware assembly with the conductive winding and is electrically connected；Preferably, the lateral surface of the medial surface of a pair of of hardware assembly and the cap magnetic core is adhered and fixed by an adhesive together；
Obtained semi-finished product are toasted, obtain final finished, i.e. assembly type inductance after solidifying binder.
Further, conductive winding is wound into canoe on the center pillar of T shape magnetic core be α around.
Further, it is filled in the soft magnetism powder granule that spherical or almost spherical are mixed in the binder of the bottom section of the groove inside the cap magnetic core.
The invention has the following beneficial effects:
The present invention provides a kind of achievable batch automatic production and keep the assembly type inductance and its manufacturing method of high-performance stability.In the present invention, gap position is moved to the inside of magnetic core by the way of having reeded cap magnetic core and the combination of T shape magnetic core by magnet, without carrying out centering control；By the change of core structure, disturbance degree of the structure to air gap of assembly type inductance is significantly reduced, makes to be expanded to ± 0.1mm from ± 0.05mm to the tolerance of magnetic core, is conducive to realize batch automatic production.Using technical solution of the present invention, while realizing assembly type inductance batch automatic production, inductance electrically fluctuates deviation caused by can effectively reduce because of assembly clearance fluctuation.
Using technical solution of the present invention, the specific advantage of following aspect can be obtained:
(1) magnetic core uses cap magnetic core and T shape core combination, and gap position is moved to inside assembly, and properties of product is made to keep high stability；
(2) influence factor of air gap includes two aspects of structure control precision and magnetic core tolerance of inductive devices.Technical solution of the present invention greatly reduces influence of the structure to air gap of inductive devices, and reduces the requirement to magnetic core tolerance；
(3) using the present invention, it is advantageously implemented the automatic batch production of assembly type inductance, while ensuring that product quality has high stability.
It is aforementioned quite widely to elaborate feature and technical advantage of the invention, so as to more fully understand detailed description of the invention.Other feature and advantage of the invention will be described below.
Fig. 1 is the explosive view of the assembly type inductance of the embodiment of the present invention one；
Fig. 2 (a) is the assembly type inductance finished product schematic of the embodiment of the present invention one；
Fig. 2 (b) is the cross-section diagram of the assembly type inductance of the embodiment of the present invention one；
Fig. 3 (a) is the cross-section diagram of the assembly type inductance of the embodiment of the present invention two；
Fig. 3 (b) is the schematic diagram of the binder inside the cap magnetic core in the assembly type inductance of the embodiment of the present invention two；
Fig. 4 (a) is the finished product schematic of the assembly type inductance of the embodiment of the present invention three；
Fig. 4 (b) is the cross-section diagram of the assembly type inductance of the embodiment of the present invention three；
Fig. 4 (c) is the left view of the assembly type inductance of the embodiment of the present invention three.
Symbol description:
10 T shape magnetic cores；
11 cap magnetic cores；
12 conductive windings；
13 hardware assemblies；
16 gaps；
14,15,17,18 binder.
In conjunction with attached drawing, the present invention is further described in detail by the following examples.It is emphasized that following the description is only exemplary, the range and its application being not intended to be limiting of the invention.It should be appreciated by those skilled in the art that the concept and specific embodiment that disclose are used to modify or design other structures to complete identical purpose of the invention based on being easily used as.Those skilled in the art are not it should also be appreciated that this equivalent construction offsets the spirit and scope of the present invention.It is considered as the novel features of feature of the present invention, structure and operation method and further objects and advantages, will be better understood when from description below and in conjunction with attached drawing.However, it should profoundly recognize, each feature provided limits definition of the invention without being intended to merely to description and explanation.
Refering to fig. 1 to Fig. 4 (c), in some embodiments, a kind of assembly type inductance, including cap magnetic core 11, T shape magnetic core 10, conductive winding 12 and a pair of of hardware assembly 13, the inside of the cap magnetic core 11 forms fluted, the conductive winding 12 is wound on the center pillar of the T shape magnetic core 10, in the center pillar of the T shape magnetic core 10 and the conductive groove inside the merging cap magnetic core 11, there are the gaps 16 of predetermined space distance between the bottom of the groove of the center pillar and cap magnetic core 11 of the T shape magnetic core 10, form air gap, the hardware assembly 13 is fixed on the cap magnetic core 11, and it is electrically connected with the conductive winding 12 formation, by being at least filled in the cap magnetic between the cap magnetic core 11 and the T shape magnetic core 10 The binder 15,17,18 of the bottom section of the groove inside core 11 is fixed, and the binder for being filled in the bottom section of the groove inside the cap magnetic core 11 fills the air gap.
In some preferred embodiments, the hardware assembly 13 is fixed on the cap magnetic core 11 by binder 14.
In some preferred embodiments, the air gap formed after the T shape magnetic core 10 and the cap magnetic core 11 combination, interval is in 0.1mm~0.6mm.
In some preferred embodiments, the material of the T shape magnetic core 10 and cap magnetic core 11 is NiZn ferrite, and relative permeability is 350~500, and the interval of the air gap is in 0.25mm~0.45mm.
In other preferred embodiments, the material of the T shape magnetic core 10 is alloyed powder, and relative permeability is 45~60, and the material of the cap magnetic core 11 is NiZn ferrite, and relative permeability 350~500, the interval of the air gap is in 0.15mm~0.25mm.
In other preferred embodiments, the material of the T shape magnetic core 10 is MnZn ferrite, relative permeability 2000~3500, the material NiZn ferrite of the cap magnetic core 11, relative permeability 350~500, the interval of the air gap is in 0.30mm~0.50mm.
In other preferred embodiments, the material of the T shape magnetic core 10 and the cap magnetic core 11 is alloyed powder, and for relative permeability 45~60, the width of the air gap is not more than 0.20mm.
In some preferred embodiments, the binder for being filled in the bottom section of the groove inside the cap magnetic core 11 is epoxy systems binder, relative permeability 1.
In some preferred embodiments, it is filled in the soft magnetism powder granule that spherical or almost spherical are mixed in the binder of the bottom section of the groove inside the cap magnetic core 11.
In some preferred embodiments, the relative permeability of the binder of the bottom section of the groove inside the cap magnetic core 11 is filled in 1.5~6.0.
Refering to fig. 1 to Fig. 4 (c), in some embodiments, a method of the assembly type inductance is made, is included the following steps:
Conductive winding 12 is wound on the center pillar of T shape magnetic core 10；
In the interior grooves of the cap magnetic core 11, until being less than the bottom section filling adhesive 15,17,18 of the groove；
Assemble the T shape magnetic core 10 and the cap magnetic core 11, the center pillar of the T shape magnetic core 10 and the conductive winding 12 are placed in the groove of the cap magnetic core 11, to form the air gap filled by the binder between the T shape magnetic core 10 and the cap magnetic core 11 in the inside of the T shape magnetic core 10；
A pair of of hardware assembly 13 is fixed on the cap magnetic core 11, and forms the hardware assembly 13 with the conductive winding 12 and is electrically connected；Preferably, the lateral surface of the medial surface of a pair of of hardware assembly 13 and the cap magnetic core 11 is adhesively fixed together by binder 14；
Obtained semi-finished product are toasted, obtain final finished, i.e. assembly type inductance after making binder 15,17,18 (optionally there are also binders 14) solidification.
In some preferred embodiments, conductive winding 12 is wound into canoe on the center pillar of T shape magnetic core 10 be α around.
In other preferred embodiments, it is filled in the soft magnetism powder granule that spherical or almost spherical are mixed in the binder of the bottom section of the groove inside the cap magnetic core 11.
Embodiment one
Refering to Fig. 2 (a) to Fig. 2 (b), a kind of assembly type inductance, including cap magnetic core 11, T shape magnetic core 10, conductive winding 12 and a pair of of hardware assembly 13, the inside of the cap magnetic core 11 forms fluted, the conductive winding 12 is wound on the center pillar of the T shape magnetic core 10, in the center pillar of the T shape magnetic core 10 and the conductive groove inside the merging cap magnetic core 11, there are the gaps 16 of predetermined space distance between the bottom of the groove of the center pillar and cap magnetic core 11 of the T shape magnetic core 10, form air gap, the hardware assembly 13 is fixed on the cap magnetic core 11 by binder 14, and it is electrically connected with the conductive winding 12 formation, by being filled in the cap between the cap magnetic core 11 and the T shape magnetic core 10 The binder 15,17,18 of the bottom section of the groove inside magnetic core 11 is fixed, and the binder 15,17,18 for being filled in the bottom section of the groove inside the cap magnetic core 11 fills the air gap.
The assembly type inductance production method of the embodiment may comprise steps of:
(1) conductive winding 12 is wound on T shape magnetic core 10, the preferred α of canoe around；
(2) the inside filling adhesive 15 of cap magnetic core 11；
(3) T shape magnetic core 10 and cap magnetic core 11 are assembled, the inside of cap magnetic core 11 forms the air gap 16 filled by binder；
(4) it is assembled after the medial surface coated with adhesive 14 of hardware assembly 13 with cap magnetic core 11, and forms hardware assembly 13 with conductive winding 12 and be electrically connected；
(5) semi-finished product after assembling, which are put into oven, to be solidified, and binder 14,15 obtains final finished after solidifying.
Embodiment two
Refering to Fig. 3 (a) to Fig. 3 (b), the assembly type inductance of the assembly type inductance and embodiment one of embodiment two the difference is that only: in example 2, it is filled in the soft magnetism powder granule that spherical or almost spherical are mixed in the binder 17 of the bottom section of the groove inside the cap magnetic core 11, and in example 1, it is filled in the binder 15 of the bottom section of the groove inside the cap magnetic core 11 without the soft magnetism powder granule.
The assembly type inductance production method of the embodiment may comprise steps of:
(1) conductive winding 12 is wound on T shape magnetic core 10, the preferred α of canoe around；
(2) the inside filling adhesive 17 of cap magnetic core 11 is mixed with the consistent spherical soft magnetism powder of partial size in binder 17；
(3) T shape magnetic core 10 and cap magnetic core 11 are assembled, inside forms the air gap 16 filled by binder 17；
(4) it is assembled after the medial surface coated with adhesive 14 of hardware assembly 13 with cap magnetic core 11, and forms hardware assembly 13 with conductive winding 12 and be electrically connected；
(5) semi-finished product after assembling, which are put into oven, to be solidified, and binder 14,17 obtains final finished after solidifying.
Embodiment three
Refering to Fig. 4 (a) to Fig. 4 (c), the assembly type inductance of the assembly type inductance and embodiment one of embodiment three the difference is that only: the position that the hardware assembly of embodiment one is electrically connected with conductive winding formation is on the diagonal line of the top blade of the squarish of the T shape magnetic core, positioned at the angle on two sides of the top blade；And the hardware assembly of embodiment three and the conductive winding formed the position that is electrically connected be in the T shape magnetic core squarish top blade side on, rather than the top blade while with while angle.Compared with embodiment one, the hardware assembly of embodiment three and conductive winding form at the position being electrically connected only to need to form relatively small notch on the top blade and the hardware assembly of the T shape magnetic core and can be achieved with the hardware assembly and be electrically connected with the conductive winding in the T shape magnetic core, therefore, compared to embodiment one, the T shape magnetic core of embodiment three and the contact area of the cap magnetic core are larger, to have better structural stability and magnetic shield property.
Step used by the assembly type inductance production method of the embodiment can be identical with step used by the assembly type inductance production method of embodiment one or embodiment two.
The above content is combine it is specific/further detailed description of the invention for preferred embodiment, and it cannot be said that specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs; without departing from the inventive concept of the premise; it can also make some replacements or modifications to the embodiment that these have been described, and these substitutions or variant all shall be regarded as belonging to protection scope of the present invention.In the description of this specification, a kind of description of reference term " embodiment ", " some embodiments ", " preferred embodiment ", " example ", " specific example " or " some examples " etc. means that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are included at least one embodiment or example of the invention.In the present specification, the schematic representation of the above terms does not necessarily have to refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, the feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by those skilled in the art.Although embodiments of the present invention and their advantages have been described in detail, it is to be understood that, in the case where not departing from the embodiment spirit and scope being defined by the following claims, various changes, replacement and change can be carried out herein.In addition, the scope of the present invention is not limited to the specific embodiment of process described in the specification, machine, manufacture, material composition, means, method and steps.One ordinarily skilled in the art will readily appreciate that can use execute with the essentially identical function of corresponding embodiment described herein or obtain and the essentially identical result of embodiment described herein presently, there are or above-mentioned disclosure, process, machine, the manufacture, material composition, means, method or step to be developed later.Therefore, appended claims are intended to for these processes, machine, manufacture, material composition, means, method or step being embraced within their scope.
Claims (10)
- A kind of assembly type inductance, it is characterized in that, including cap magnetic core, T shape magnetic core, conductive winding and a pair of of hardware assembly, the inside of the cap magnetic core forms fluted, the conductive winding is wound on the center pillar of the T shape magnetic core, in the center pillar of the T shape magnetic core and the conductive groove inside the merging cap magnetic core, there are the gaps of predetermined space distance between the bottom of the groove of the center pillar of the T shape magnetic core and the cap magnetic core, form air gap, the hardware assembly is fixed on the cap magnetic core, and it is electrically connected with conductive winding formation, it is fixed between the cap magnetic core and the T shape magnetic core by being at least filled in the binder of the bottom section of the groove inside the cap magnetic core, it is filled in the described viscous of the bottom section of the groove inside the cap magnetic core The air gap is filled in knot agent；Preferably, the hardware assembly is fixed on the cap magnetic core by binder.
- Assembly type inductance as described in claim 1, which is characterized in that the material of the T shape magnetic core and cap magnetic core is NiZn ferrite, and relative permeability is 350~500, and the interval of the air gap is in 0.25mm~0.45mm.
- Assembly type inductance as described in claim 1, which is characterized in that the material of the T shape magnetic core is alloyed powder, relative permeability is 45~60, the material of the cap magnetic core is NiZn ferrite, and relative permeability 350~500, the interval of the air gap is in 0.15mm~0.25mm.
- Assembly type inductance as described in claim 1, which is characterized in that the material of the T shape magnetic core is MnZn ferrite, relative permeability 2000~3500, the material NiZn ferrite of the cap magnetic core, relative permeability 350~500, the interval of the air gap is in 0.30mm~0.50mm.
- Assembly type inductance as described in claim 1, which is characterized in that the material of the T shape magnetic core and the cap magnetic core is alloyed powder, and for relative permeability 45~60, the width of the air gap is not more than 0.20mm.
- Such as assembly type inductance described in any one of claim 1 to 5, which is characterized in that the binder for being filled in the bottom section of the groove inside the cap magnetic core is epoxy systems binder, relative permeability 1.
- Such as assembly type inductance described in any one of claim 1 to 5, which is characterized in that be filled in the soft magnetism powder granule for being mixed with spherical or almost spherical in the binder of the bottom section of the groove inside the cap magnetic core.
- Assembly type inductance as claimed in claim 7, which is characterized in that be filled in the relative permeability of the binder of the bottom section of the groove inside the cap magnetic core 1.5~6.0.
- A method of making assembly type inductance as claimed in any one of claims 1 to 8, which comprises the steps of:Conductive winding is wound on the center pillar of T shape magnetic core, the preferred α of canoe around；In the interior grooves of the cap magnetic core, until being less than the bottom section filling adhesive of the groove；Assemble the T shape magnetic core and the cap magnetic core, the center pillar of the T shape magnetic core and the conductive winding are placed in the groove of the cap magnetic core, to form the air gap filled by the binder between the T shape magnetic core and the cap magnetic core in the inside of the T shape magnetic core；A pair of of hardware assembly is fixed on the cap magnetic core, and forms the hardware assembly with the conductive winding and is electrically connected；Preferably, the lateral surface of the medial surface of a pair of of hardware assembly and the cap magnetic core is adhered and fixed by an adhesive together；Obtained semi-finished product are toasted, obtain final finished, i.e. assembly type inductance after solidifying binder.
- Method as claimed in claim 9, which is characterized in that be filled in the soft magnetism powder granule that spherical or almost spherical are mixed in the binder of the bottom section of the groove inside the cap magnetic core.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/083646 WO2018127252A2 (en) | 2018-04-19 | 2018-04-19 | Assembly-type inductor and manufacturing method therefor |
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| CN108701531A true CN108701531A (en) | 2018-10-23 |
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| CN111430111A (en) * | 2020-05-09 | 2020-07-17 | 深圳威迈斯新能源股份有限公司 | Inductor |
| CN111816406A (en) * | 2020-08-04 | 2020-10-23 | 深圳可立克科技股份有限公司 | Multi-coil continuous winding inductor |
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| JPH11354344A (en) * | 1998-04-06 | 1999-12-24 | Hitachi Ferrite Denshi Kk | Inductance element |
| CN101325122A (en) * | 2007-06-15 | 2008-12-17 | 库帕技术公司 | Minisize shielding magnetic component |
| JP2010212271A (en) * | 2009-03-06 | 2010-09-24 | Fdk Corp | Low-profile inductor |
| CN102449708A (en) * | 2009-05-04 | 2012-05-09 | 库柏技术公司 | Miniature shielded magnetic component and methods of manufacture |
| CN104810137A (en) * | 2014-01-28 | 2015-07-29 | Tdk株式会社 | Reactor |
| CN204834241U (en) * | 2015-06-26 | 2015-12-02 | 深圳市高斯博电子科技有限公司 | Common mode inductance ware |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104616878B (en) * | 2014-12-30 | 2019-01-08 | 深圳顺络电子股份有限公司 | A kind of miniature molding inductance element and its manufacturing method |
| JP2016157751A (en) * | 2015-02-23 | 2016-09-01 | スミダコーポレーション株式会社 | Electronic component |
| TW201735065A (en) * | 2016-03-31 | 2017-10-01 | 全漢企業股份有限公司 | Magnetic element |
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- 2018-04-19 CN CN201880000301.0A patent/CN108701531A/en active Pending
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| JPH11354344A (en) * | 1998-04-06 | 1999-12-24 | Hitachi Ferrite Denshi Kk | Inductance element |
| CN101325122A (en) * | 2007-06-15 | 2008-12-17 | 库帕技术公司 | Minisize shielding magnetic component |
| JP2010212271A (en) * | 2009-03-06 | 2010-09-24 | Fdk Corp | Low-profile inductor |
| CN102449708A (en) * | 2009-05-04 | 2012-05-09 | 库柏技术公司 | Miniature shielded magnetic component and methods of manufacture |
| CN104810137A (en) * | 2014-01-28 | 2015-07-29 | Tdk株式会社 | Reactor |
| CN204834241U (en) * | 2015-06-26 | 2015-12-02 | 深圳市高斯博电子科技有限公司 | Common mode inductance ware |
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| WO2018127252A3 (en) | 2019-02-14 |
| WO2018127252A2 (en) | 2018-07-12 |
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