CN108122663A - Magnetic element and the transformer comprising the element - Google Patents

Magnetic element and the transformer comprising the element Download PDF

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Publication number
CN108122663A
CN108122663A CN201711214329.8A CN201711214329A CN108122663A CN 108122663 A CN108122663 A CN 108122663A CN 201711214329 A CN201711214329 A CN 201711214329A CN 108122663 A CN108122663 A CN 108122663A
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CN
China
Prior art keywords
magnetic core
wall
skeleton
core portion
upper plate
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Granted
Application number
CN201711214329.8A
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Chinese (zh)
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CN108122663B (en
Inventor
黄基浩
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TDK Korea Corp
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TDK Korea Corp
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Publication of CN108122663A publication Critical patent/CN108122663A/en
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Publication of CN108122663B publication Critical patent/CN108122663B/en
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Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields

Abstract

One embodiment according to the invention provides a kind of magnetic element.The magnetic element, including：Top magnetic core, is made of magnetisable material；Lower part magnetic core, is made of magnetisable material, and lower part magnetic core combines to form inner space with top magnetic core.Top magnetic core, including：Upper plate, the shape with polygon；Outer wall is formed along the edge of upper plate, is vertically extended with respect to upper plate；Magnetic core portion, setting parallel to the vertical direction.Lower part magnetic core, including：Lower plate is combined with outer wall；At least one inner wall, it is prominent between outer wall and magnetic core portion to be formed.

Description

Magnetic element and the transformer comprising the element
Technical field
A kind of transformer the present invention relates to magnetic element and comprising the element.
Background technology
The magnetism inscape such as inductor and transformer is widely used in the application field that electric power is supplied for electronic device, example Such as：For the device for transformer of circuit board.This device, including：It is conductively connected to be established in the correspondence through hole of circuit board And it is wrapped in primary and secondary transformer coil in the insulation framework comprising conductive pin (pin) (bobbin).
In device for transformer, skeleton and related coil are combined with magnetic core assembly, and the coil of transformer can be used for providing The voltage confession electricity output different from input voltage and increase or reduce control source.Therefore, higher input voltage can pass through Device for transformer is depressured the lower input voltage for the electronic device being suitable on circuit board, the electronics on circuit board The lower output voltage of device can boost to input to the higher voltage of other electric devices.
In magnetic core assembly, if between primary coil and secondary coil by skeleton separated merely, just do not allow to be also easy to produce The efficient leakage inductance of transformer can be embodied.
In addition, if marriage relation is not present between magnetic core assembly and skeleton, between top magnetic core and lower part magnetic core just It can rotate under external force, therefore required transformation performance would not be generated.
The content of the invention
Technical problem to be solved
The present invention provides one kind and can solve the above problems and can improve having for leakage inductance (leakage inductanc e) The magnetic element of various structures.
In addition, the present invention provides a kind of magnetic element configured together with central magnetic core inner wall inside magnetic core.
In addition, the present invention provides a kind of change of the various structures skeleton combined with the magnetic element with a variety of different structures Depressor.
The method for solving technical problem
The present invention provides a kind of magnetisable material and the transformer embodiments comprising the substance.
The magnetic element of foundation one embodiment, including：Top magnetic core, is made of magnetisable material；Lower part magnetic core, by Magnetisable material is formed, lower part magnetic core and top magnetic core with reference to and form inner space.Top magnetic core, including：With polygon shape The upper plate of shape；The simultaneously vertically extended outer wall of opposite upper plate is formed along the edge of upper plate；Formation parallel to the vertical direction Magnetic core portion.Lower part magnetic core, including：The lower plate combined with outer wall；Prominent formation is at least one interior between outer wall and magnetic core portion Wall.Magnetic core portion is configurable on the opposite asymmetrical position in lower plate center, and inner wall is configurable on the position of opposite magnetic core portion isolation.
Magnetic core portion has linear (linear) shape.
Inner wall has linear shape, and the length direction of inner wall is parallel with the length direction in magnetic core portion.
Magnetic element in the case of a kind of is that inner wall only configures between core and outer wall two by a setting, inner wall In a space in space.
Another situation is to provide two inner walls being separated from each other, and two inner walls can be symmetrically arranged at magnetic core periphery On.
Inner wall has the "U" shaped shape that can surround magnetic core periphery.
Two end of inner wall is formed with the corner part protruded inwardly.
Outer wall has the shape of polygon, is formed on a corner angle of outer wall at least one for drawing opening for electric wire Mouthful.
In the corner angle of multiple outer walls, opening can be arranged on the rib to meet with the extended line of inner wall or core length direction On angle.
Outer wall has the shape of polygon, on outer wall two corner angle relative to each other, is respectively formed at least one Divide the opening portion being truncated.
In the corner angle of multiple outer walls, two corner angle can be the rib to meet with the extended line of outer wall or core length direction Angle.
In order to which electric wire is enable to penetrate through, hole is formed in lower plate.Hole can be only fitted to the opening and offside positioned at outer wall.
Upper plate has quadrangle or octagonal shape.It ensures that and surrounds the corner angle of upper plate, outer wall can have There are quadrangle or octagonal shape.
According to the magnetic element of another embodiment, including：Top magnetic core, is made of magnetisable material；Lower part magnetic core, by Magnetisable material is formed, and lower part magnetic core is combined to form inner space with top magnetic core.Top magnetic core, including：Upper plate；Along upper plate Edge with respect to the 1st outer wall that upper plate is formed towards vertical direction.Lower part magnetic core, including：With the lower plate with upper plate correspondingly-shaped； Along lower plate edge the 2nd outer wall that opposite lower plate is formed towards vertical direction in the way of it can be combined with the 1st outer wall；It is protruded from lower plate The magnetic core portion of formation；The prominent at least one inner wall formed between outer wall and magnetic core portion.Magnetic core portion is carried out with respect to lower plate center Symmetrical arrangements, inner wall are configurable on the position that opposite core separates.
Inner wall can be formed along the center line of inner wall.
The center configuration in magnetic core portion has a certain distance at the one side of lower plate, the center from lower plate.Inner wall is in lower plate Configuration is being provided with the offside of magnetic core portion one side on the basis of the heart.
Magnetic core portion has the shape of quadrangle of the turning Jing Guo arc process, the linear form of center line of inner wall, inner wall It is in linear (linear) shape on the whole.
Magnetic core portion has cylinder form.To guarantee to wrap up magnetic core periphery, the center line of inner wall can be in bending Form.
Inner wall is arc-shaped shape on the whole.
The maximum length of inner wall length direction is small than the diameter in magnetic core portion.
On the 1st outer wall and the 2nd outer wall relative to each other two are formed with along the direction by magnetic core portion and inner wall center A opening.
Upper plate and lower plate have the shape of quadrangle, and the 1st outer wall and the 2nd outer wall are formed only in the 4 of upper plate and lower plate respectively On two corner angle in a corner angle.
Magnetic core portion and inner wall have the longitudinal length shape longer than lateral length, and the 1st outer wall and the 2nd outer wall only form respectively In on parallel longitudinal corner angle.
The transformer of foundation one embodiment, including：Top magnetic core, is made of magnetisable material；Lower part magnetic core, by magnetic Property substance form, lower part magnetic core forms the inner space with certain form together with the magnetic core of top；Skeleton is configured in inside In space.Top magnetic core, including：Upper plate with polygonal shape；It is formed along the edge of upper plate and opposite upper plate edge is vertically prolonged Long outer wall；Positioned at the magnetic core portion at upper plate center.Lower part magnetic core, including：With the lower plate with upper plate correspondingly-shaped；Outer wall with Prominent at least one inner wall between magnetic core portion.Skeleton, including：By the 1st skeleton that magnetic core portion and inner wall penetrate through and combine；To be true The 1st skeleton of perforation is protected to be combined and the 2nd skeleton of at least part of protrusion.
1st skeleton, including：1st skeleton portion has the shape of annular (loop)；Upper plate, with the 1st skeleton portion upper end Connection is formed with multiple holes for making magnetic core portion and inner wall perforation；Lower plate is connected with the 1st skeleton subordinate end, and being formed with makes the 2nd The hole of the part perforation of skeleton；At least one partition wall is located at the medial surface in the 1st skeleton portion, and surrounding makes what inner wall penetrated through Hole.
2nd skeleton, including：2nd skeleton portion has annular (l oop) shape more smaller size of than the 1st skeleton portion；On Plate is located at the upper end in the 2nd skeleton portion, is formed with the hole for penetrating through magnetic core portion；Lower plate carries and is engaged with lower plate and make magnetic core Portion and multiple holes of inner wall perforation；Terminal is configured in the one side of lower plate.
The medial surface of inner wall and top magnetic core is spaced a distance.
1st skeleton surrounds inner wall, and the 2nd skeleton surrounds median wall.
According to the transformer of another embodiment, including：Top magnetic core, is made of magnetisable material；Lower part magnetic core, by magnetic Property substance form, the inner space with certain form is formed together with the magnetic core of top；Skeleton is contained in inner space. Top magnetic core, including：Upper plate；Surround the 1st outer wall of upper plate.Lower part magnetic core, including：Lower plate；Surround the 2nd outer wall of lower plate；From The magnetic core portion that lower plate protrudes；Prominent at least one inner wall between outer wall and magnetic core portion.Skeleton is penetrated through by magnetic core portion and inner wall, A part for skeleton extends outward from inner space.
Skeleton, including：Frame board is formed with the hole for making magnetic core portion and inner wall perforation；1st skeleton portion, with frame board Connection；2nd skeleton portion, is connected with frame board, and is surrounded by the 1st skeleton portion.
Skeleton further includes：Configure the 1st terminal in frame board one side；Configure the 2nd terminal in frame board opposite side.
Skeleton, including：The 1st skeleton penetrated through by magnetic core portion and inner wall；It is combined with top magnetic core and a part is contained in the 1st Intraskeletal 2nd skeleton.Top magnetic core, the 2nd skeleton, the 1st skeleton and lower part magnetic core can configure in sequence.
2nd skeleton, including：It is formed with the frame board in the hole for penetrating through magnetic core portion；The 2nd skeleton portion being connected with upper plate.1st Skeleton, including：It is formed with the upper plate in the hole for penetrating through the 2nd skeleton portion；The 1st skeleton portion being connected with upper plate；Connect with the 1st skeleton portion It connects and is formed with the lower plate for making magnetic core portion and the hole of inner wall perforation.
Medial surface in the 1st skeleton portion is formed with to accommodate at least one partition wall of inner wall.
The guiding piece that oriented frame board center protrudes is formed on the frame board of the 2nd skeleton, on the upper plate of top magnetic core It is formed with groove corresponding with guiding piece.
According to the transformer of another embodiment, including：Top magnetic core, is made of magnetisable material；Lower part magnetic core, by magnetic Property substance form, lower part magnetic core forms the inner space with certain form together with the magnetic core of top；Skeleton is contained in inside In space.Top magnetic core, including：Upper plate；Surround the 1st outer wall of top plate.Lower part magnetic core, including：Lower plate；Surround the 2nd of lower plate Outer wall；From the magnetic core portion that lower plate protrudes；To at least one inner wall prominent between outer wall and magnetic core portion.The center configuration in magnetic core portion In the one side of lower plate, the center from the center of lower plate at intervals.Inner wall is configured on the basis of the center of lower plate and set It is equipped with the offside of magnetic core portion one side.
Skeleton, including：1st skeleton forms to surround magnetic core portion and outer wall periphery with a cyclic form；2nd skeleton, It is contained in the 1st skeleton, is formed to surround magnetic core portion with a cyclic form.
1st skeleton a part configuration between inner wall and the 2nd outer wall, the 2nd skeleton a part configuration magnetic core portion with Between inner wall.
The transformer, further includes：Shell accommodates assembled top magnetic core and lower part magnetic core.Lower part magnetic core Lower plate is adhered on the shell.
The transformer, further includes：Configure the 1st terminal in shell one side；Configure the 2nd terminal in shell opposite side.
Invention effect
Embodiment according to the invention is configured between primary coil and secondary coil in being made of magnetisable material Wall, so as to increase the leakage inductance between primary coil and secondary coil.
In addition, inner wall or magnetic core portion have linear form, so as to which the integral size of design of transformer is more compact.
In addition, inner wall or magnetic core portion perforation skeleton are in itself, therefore skeleton and magnetic element can be bonded to each other.
In addition, top magnetic core or lower part magnetic core have the shape of polygon, therefore can prevent from completing to assemble in transformer The phenomenon that skeleton magnetic element of relative interior rotates afterwards.
Furthermore it is possible to by adjust the configuration structure in magnetic core portion and inner wall or the number of inner wall and the leakage inductance to transformer into Row is adjusted.
Description of the drawings
Fig. 1 is the stereogram for the transformer for being shown according to one embodiment.
Fig. 2 is the exploded perspective view for the transformer decomposition shape for being shown according to one embodiment.
Fig. 3 is to show that the transformer observed from the direction different from Fig. 2 decomposes the exploded perspective view of shape.
Fig. 4 is to show the sectional view for blocking transformer shown in Fig. 1 along AA lines.
Fig. 5 is the sectional view for another embodiment for showing that inner wall length is shorter than transformer shown in Fig. 4.
Fig. 6 is the decomposition for the transformer shape for being shown according to the inner wall number another embodiment fewer than transformer shown in Fig. 2 Stereogram.
Fig. 7 is the stereogram for the top core shapes for being shown according to the 1st alternative solution of one embodiment.
Fig. 8 is the stereogram for the top core shapes for being shown according to the 2nd alternative solution of one embodiment.
Fig. 9 is the stereogram for the top core shapes for being shown according to the 3rd alternative solution of one embodiment.
Figure 10 is the stereogram for the top core shapes for being shown according to the 4th alternative solution of one embodiment.
Figure 11 is the stereogram for the top core shapes for being shown according to the 5th alternative solution of one embodiment.
Figure 12 is the stereogram for the lower part core shapes for being shown according to the 6th alternative solution of one embodiment.
Figure 13 is the stereogram for the lower part core shapes for being shown according to the 7th alternative solution of one embodiment.
Figure 14 is the stereogram for the lower part core shapes for being shown according to the 8th alternative solution of one embodiment.
Figure 15 is the stereogram for the lower part core shapes for being shown according to the 9th alternative solution of one embodiment.
Figure 16 is the stereogram for the lower part core shapes for being shown according to the 10th alternative solution of one embodiment.
Figure 17 is the stereogram for the lower part core shapes for being shown according to the 11st alternative solution of one embodiment.
Figure 18 is the stereogram for the transformer for being shown according to another embodiment.
Figure 19 is the exploded perspective view for the transformer decomposition shape for being shown according to another embodiment.
Figure 20 is to show that the transformer observed from the direction different from Figure 19 decomposes the exploded perspective view of shape.
Figure 21 is the exploded perspective view for the transformer decomposition shape for being shown according to another the 1st alternative solution of embodiment.
Figure 22 is the exploded perspective view for the transformer decomposition shape for being shown according to another the 2nd alternative solution of embodiment.
Figure 23 is to show that the transformer observed from the direction different from Figure 22 decomposes the exploded perspective view of shape.
Figure 24 is the stereogram for the transformer for being shown according to another embodiment.
Figure 25 is to show the sectional view for blocking transformer shown in Figure 24 along BB lines.
Figure 26 is the exploded perspective view for the transformer decomposition shape for being shown according to another embodiment.
Figure 27 is the exploded perspective view for the transformer for being shown according to another the 1st alternative solution of embodiment.
Figure 28 is the top view for the lower part magnetic core for being shown according to another the 1st alternative solution of embodiment.
Specific embodiment
The embodiment of the present invention is the example for illustrating and enumerating for the technological thought to the present invention.The power of the present invention Sharp scope is not only defined in the embodiment being exemplified below or these embodiments is illustrated.
As long as no separately defining, included with institute of the present invention for all technical termses and scientific words of the present invention Belong to the normally understood meaning of technical staff of technical field general knowledge.All terms for the present invention are for this hair Bright more clearly illustrated and select, be not in order to limit the present invention interest field and select.
As long as there is no different elaborations in sentence or sentence comprising the statement, the present invention in use "comprising", " possessing ", Statements such as " having " should all be interpreted as containing the open term (open-ended terms) that may include other embodiments.
Only without different elaborations, the odd number type statement meaning containing complex number type, this point used in of the invention is same Sample is stated suitable for odd number type described in claim.
The statement such as " the 1st " that is used in the present invention, " 2nd " is and unlimited for mutually being distinguished to multiple inscapes The order or significance level of fixed correlation inscape.
In the present invention, if it is mentioned that a certain inscape and another inscape " connection " or " contact " should then manage Xie Wei, a certain inscape both can be directly connected to either contact or can also be with new with another inscape Another inscape is attached or contacts for medium.
" top " that is used in the present invention, " on " etc. direction instructions language in the accompanying drawings with top magnetic core opposing lower portions magnetic core institute On the basis of the direction at place, " lower section ", " under " etc. direction instructions language refer to its opposite direction.Top magnetic core shown in attached drawing can also Different modes orientation, the direction instruction language can be matched with the orientation and explain.
The embodiment of the present invention is illustrated next, with reference to attached drawing.In the accompanying drawings, identical or corresponding composition will Element assigns its identical reference number.In addition, during being illustrated to following embodiment, may omit to identical or The repeated description of corresponding inscape.But even if the description as described in inscape is omitted, also it is not meant to that composition Element is not included in a certain embodiment.
Fig. 1 is the stereogram for the transformer 1 for being shown according to one embodiment, and Fig. 2 is the change for being shown according to one embodiment Depressor 1 decomposes the exploded perspective view of shape, and Fig. 3 is to show that the transformer observed from the direction different from Fig. 21 decomposes shape Exploded perspective view.The transformer 1 of foundation one embodiment, including：Magnetic element (magnetic component) 10；Configuration exists Skeleton 20 between magnetic element 10；Surround the primary coil L1 of 20 one side of skeleton；And surround the secondary of 20 opposite side of skeleton Coil L2.
Magnetic element 10, including：Top magnetic core 11, is made of magnetisable material；Lower part magnetic core 12, by magnetic material texture Into lower part magnetic core is combined to form the inner space for accommodating skeleton 20 with top magnetic core.Top magnetic core 11 and lower part magnetic The magnetisable material of core 12 can be made of each other identical material.Such as：It can be by FERRITE CORE (ferrite core) material structure Into.Top magnetic core 11, such as：Pot shape magnetic core (POT core) type can be used.T-shaped magnetic core (T can be used in lower part magnetic core 12 Core) type, but the present invention is not only defined in this.
Top magnetic core 11, including：Upper plate 111, the shape with polygon；Outer wall 112, along the side of upper plate 111 Edge is formed, and is vertically extended with respect to upper plate 111；Magnetic core portion 113, configuration parallel to the vertical direction.Lower part magnetic core 12, bag It includes：The lower plate 121 combined with outer wall 112；To at least one inner wall 122 of prominent formation between outer wall 112 and magnetic core portion 113. Magnetic core portion 113 is not necessarily arranged respectively at inner wall 122 on top magnetic core 11 and lower part magnetic core 12, can also all be configured upper In any one in portion's magnetic core 11 or lower part magnetic core 12.
Upper plate 111 has the polygonal shape for including multiple corner angle.In addition, the shape of upper plate 111 be not only defined in it is more Side shape can have ellipse or semiellipse (home stretch) shape.Such as：When upper plate 111 has quadrangle or eight During the shape of side shape, outer wall 112 can have quadrangle or octagonal shape, to guarantee to surround the rib of upper plate 111 Angle.
Magnetic core portion 113 has linear (linear) shape, and inner wall 122 also has linear shape.The length direction of inner wall 122 It can be parallel with the length direction in magnetic core portion 113.It, can be by magnetism since magnetic core portion 113 and inner wall 122 have linear shape The internal space design of element 10 obtain it is compacter, it is possible thereby to minimize the whole size of transformer 1.
Identically with upper plate 111, outer wall 112 also has the shape of polygon.Outer wall 112 can be by the wall structure of multiple separations Into.In a corner angle of outer wall 112, i.e., at least formed with one for drawing primary coil L1 on one in the wall of separation Opening 114.In the corner angle of multiple outer walls 112, opening 114 is located at the extension with 113 length direction of inner wall 122 or magnetic core portion On the corner angle that line meets.
Inner wall 122 can be made of two walls being isolated from each other, and two inner walls 122 can be symmetrically arranged at magnetic core portion 113 weeks Side.There is secondary coil L2 to pass through between inner wall 122 and magnetic core portion 113.Therefore, after transformer 1 assembles, inner wall 122, Magnetic core portion 113 and inner wall 122 can be arranged side-by-side.
The hole 123 for penetrating through secondary coil L2 is formed in the lower plate 121 of lower part magnetic core 12, is matched somebody with somebody in hole 123 It is equipped with the terminal (terminal) 226 being connected with secondary coil L2.Hole 123 is configurable on pair of the opening 114 positioned at outer wall 112 Side.Primary coil L1 can be drawn by the opening 114 of outer wall 112 as a result, and secondary coil L2 can pass through the hole of lower plate 121 123 draw, so as to prevent mutual electric wire from generating the situation of interference.
Skeleton 20, including：The 1st skeleton 21 that magnetic core portion 113 and inner wall 122 penetrate through；The 1st skeleton 21 is penetrated through to combine at least Some the 2nd skeleton 22 protruded.Therefore, the 1st skeleton 21 and the 2nd skeleton 22 have the structure being bonded to each other.Skeleton 20 can It is made of nonisulated property material, such as：Skeleton can be molded of plastic material.
1st skeleton 21, including：1st skeleton portion 212 has annular (loop) shape；Upper plate 211, with the 1st skeleton The upper end in portion 212 connects, and multiple hole 211a, the 211b for making magnetic core portion 113 and the perforation of inner wall 122 are formed on upper plate 211；Lower plate 213, it is connected with the lower end in the 1st skeleton portion 212,221 and the 2nd skeleton portion of upper plate for making the 2nd skeleton 22 is formed in lower plate 213 The hole 216 of 222 perforations；And at least one partition wall 215, the medial surface in the 1st skeleton portion 212 is formed at, surrounds to make The hole 217 that inner wall 122 penetrates through.
Upper plate 211 and lower plate 213 can be mutually parallel configuration.Therefore, it is formed at the hole 211b of upper plate 211 and is formed at down It the hole 217 of plate 213 can toward each other and configured in parallel.In addition, partition wall 215 is configured to surround the hole 211b, 217. Hole 211b, 217 have with 122 corresponding shape of inner wall, can be penetrated through by inner wall 122.
The global shape of skeleton 20 can be corresponding with the shape of the inner space formed by magnetic element 10.That is, the 1st skeleton 21 upper plate 211 and the marginal portion of lower plate 213 can be corresponding with the shape that is made of the medial surface of outer wall 112.When transformer 1 After assembling, the corner angle at 213 edge of upper plate 211 and lower plate are just corresponding with the corner angle of 112 medial surface of outer wall.Therefore, bone is worked as After frame 20 is combined with magnetic element 10, skeleton 20 would not rotate in the inner space formed by magnetic element 10, so as to Realization is fixedly secured.
2nd skeleton 22, including：2nd skeleton portion 222, with size than 212 smaller annular shape of the 1st skeleton portion；On Plate 221 is formed at the upper end in the 2nd skeleton portion 222, and the hole 221a for penetrating through magnetic core portion 113 is formed on upper plate 221； Lower plate 223 is engaged with the lower plate 213 of the 1st skeleton 21, is formed with to pass through magnetic core portion 113 and inner wall 122 in lower plate 223 Logical multiple hole 221a, 221b；And terminal 226, it configures in the one side of lower plate 223.After skeleton 20 assembles, the 1st It can just be engaged with above 22 lower plate 223 of the 2nd skeleton below 21 lower plate 213 of skeleton.
The hole 221a of 2nd skeleton, 22 upper plate 221 has the 216 corresponding shape of hole with being formed in 21 lower plate 213 of the 1st skeleton Shape.In addition, 221 and the 2nd skeleton portion 222 of upper plate of the 2nd skeleton 22 may be inserted into the annular space of the 1st skeleton portion 212 formation. Therefore, after the 2nd skeleton 22 is combined with the 1st skeleton 21, it will not be rotated relative to the 1st skeleton 21, can realize and be fixedly secured.
It is wound with sky of the part configuration in the 1st skeleton portion 212 of primary coil L1 between inner wall 122 and outer wall 112 In, the part configuration in the 2nd skeleton portion 222 of secondary coil L2 is wound between magnetic core portion 113 and inner wall 122.Therefore, Inner wall 122 is between primary coil L1 and secondary coil L2, so as to increase between primary coil L1 and secondary coil L2 Leakage inductance.
The hole 211a being formed on the upper plate 211 of the 1st skeleton 21 and the hole being formed on the upper plate 221 of the 2nd skeleton 22 221a can toward each other and configured in parallel.Therefore, when being assembled to magnetic element 10 and skeleton 20, magnetic core portion 113 End first passes through hole 211a, is then then passed through hole 221a.Therefore, the 1st skeleton 21 and the 2nd skeleton 22 have and 11 phase of upper core The structure mutually combined.
Fig. 4 is to show the sectional view for blocking transformer 1 shown in Fig. 1 along AA lines, and Fig. 5 is to show have than change shown in Fig. 4 The sectional view of the embodiment of the shorter inner wall 122 ' of the inner wall 122 of depressor 1.
According to Fig. 5, primary coil L1 is surrounded by the upper plate 211 of the 1st skeleton 21,213 and the 1st skeleton portion 212 of lower plate, So as to prevent contacting directly between primary coil L1 and magnetic element 10.In addition, secondary coil L2 is by the 1st skeleton 21 211 and the 1st skeleton portion 212 of upper plate and upper plate 221,223 and the 2nd bag in the form of closing of skeleton portion 222 of lower plate of the 2nd skeleton 22 It encloses, so as to prevent from contacting directly between secondary coil L2 and magnetic element 10.
Primary coil L1 can be made of the section electric wire thicker than secondary coil L2.In addition, the coil turn of secondary coil L2 Turn number Ns more than 1 of the N2 than primary coil L1.Therefore, the voltage V2 ratios exported by secondary coil L2 pass through primary coil L1 The voltage V1 highers of input.
Be wrapped in the primary coil L1 peripheries in the 1st skeleton portion 212 by the upper plate 111 of magnetic element 10, outer wall 112, under Plate 121 and inner wall 122 surround.In addition, the secondary coil L2 peripheries being wrapped in the 2nd skeleton portion 222 are by upper plate 111, inner wall 122nd, lower plate 121 and magnetic core portion 113 surround.Therefore, primary coil L1 and secondary coil L2 peripheries are surrounded by magnetisable material, thus The leakage inductance yield between primary coil L1 and secondary coil L2 can be increased, and improve the efficiency of transformer.
In Fig. 4, the height of inner wall 122, magnetic core portion 113 and outer wall 112 is mutually the same.Therefore, the end in magnetic core portion 113 It is adjacent with lower plate 121 the upper surface of, the end of inner wall 122 and adjoining below upper plate 111.Unlike this, in Figure 5, although The height of magnetic core portion 113 and outer wall 112 is mutually the same, but inner wall 122 ' below upper plate 111 with being separated by a distance d1 It is formed.By adjusting the distance between the inner wall 122 ' and upper plate 111 d1, primary coil L1 and secondary coil L2 can be adjusted Between leakage inductance amount.
Fig. 6 is point for the 1 ' shape of transformer for being shown according to the inner wall number another embodiment fewer than transformer 1 shown in Fig. 2 Solve stereogram.In the following, it will be illustrated centered on the difference between the transformer 1 introduced by Fig. 1~5.Show reference The number inscape identical with the reference number shown in Fig. 1~4, it can be understood as its function and form are also identical.
Transformer 1 ', including：Top magnetic core 11 ', lower part magnetic core 12 ', the 1st skeleton 21 ', the 2nd skeleton 22 '.Primary coil L1 is wrapped in 212 ' periphery of the 1st skeleton portion, and secondary coil L2 is wrapped in 222 ' periphery of the 2nd skeleton portion.Under lower part magnetic core 12 ' Above there are one inner walls 122 ' for prominent formation for plate 121 '.Therefore, the magnetisable material that transformer 1 ' has magnetic element 10 ' is rolled to one Oblique structure.
The lower plate 213 ' of 1st skeleton 21 ' is divided into two holes 216 ', 217 ' by partition wall 215 '.Shown in Fig. 1~5 Transformer 1 is different, only forms there are one inner wall 122 ', therefore can only provide a partition wall 215 '.Inner wall 122 ' can as a result, It is interior to be inserted into the size through hole 217 ' smaller than hole 216 '.
Hole 221a ', 221b ' there are two being formed in the lower plate 223 ' of the 2nd skeleton 22 '.According to Fig. 6, magnetic core portion 113 ' may be inserted into the center of lower plate 223 ' for being formed at the 2nd skeleton 22 ' hole 221a ' it is interior, inner wall 122 ', which may be inserted into, to be formed at The hole 221b ' in left side is interior.
According to the transformer 1 ' shown in Fig. 6, in order to which the loading condiction according to outlet side controls leakage inductance, can only make With an inner wall 122 '.Further, since only form an inner wall 122 ', the size of transformer is reduced on the whole, and can be with Realize the compact design of magnetic element and skeleton.
It in the following, will be to having a variety of alternatives with the upper core of magnetic element different shape shown in Fig. 1~6 and lower core Case illustrates.Inscape with the inscape same names illustrated with front with reference to Fig. 1~6, it can be understood as that This has the function of identical.
Fig. 7 is the stereogram for the top magnetic core 11a shapes for being shown according to the 1st alternative solution, and Fig. 8 is to be shown according to the 2nd to replace For the stereogram of the top magnetic core 11b shapes of scheme, Fig. 9 be shown according to the 3rd alternative solution top magnetic core 11c shapes it is vertical Body figure.Upper plate 111a, 111b, 111c of 1st to the 3rd alternative solution are respectively provided with octagonal shape.In addition, outer wall 112a, 112b, 112c form eight prisms according to the shape of upper plate 111a, 111b, 111c respectively.
On the upper plate 111a of magnetic core 11a in top shown in Fig. 7, magnetic core portion 113a and two inner wall 115a are from upper plate 111a protrudes to be formed.In addition, being formed on a corner angle of outer wall 112a, there are two opening 114a.
On the upper plate 111b of magnetic core 11b in top shown in Fig. 8, magnetic core portion 113b and an inner wall 115b are from upper plate 111b It is prominent to be formed.In addition, being formed on a corner angle of outer wall 112b, there are two opening 114b.
On the upper plate 111c of magnetic core 11c in top shown in Fig. 9, protrusion is configured with magnetic core portion 113c.Outer wall 112c's The opening portion 116c that at least a portion is blocked is respectively formed on two corner angle relative to each other.In the corner angle of multiple outer wall 112c In, the two corner angle are the corner angle to meet with the extended line of magnetic core portion 113c length directions.The opening portion 116c is simultaneously non-limiting To be formed only in a part for a corner angle, opening portion can in a manner of riding on adjacent more than two corner angle shape Into.
Opening portion 116c is utilized with drawing the purposes of electric wire.Such as：It can be drawn by the opening portion 116c configured in one side Go out primary coil L1 shown in Fig. 2, secondary coil L2 shown in Fig. 2 is drawn by contralateral open portion 116c on the other side.
Figure 10 is the stereogram for the top magnetic core 11d shapes for being shown according to the 4th alternative solution, and Figure 11 is to be shown according to the 5th The stereogram of the top magnetic core 11e shapes of alternative solution.
Upper plate 111d, 111e of top magnetic core 11d, 11e according to the 4th and the 5th alternative solution have the shape of quadrangle, Protrusion is formed with magnetic core portion 113d, 113e respectively on upper plate 111d, 111e.In addition, surround the outer wall of upper plate 111d, 111e 112d, 112e are respectively provided with the form of quadrangular, are made of four corner angle walls.
According to Figure 10, it is formed with to draw on a corner angle wall in four corner angle walls for forming outer wall 112d Two opening 114d of electric wire.
According to Figure 11, two opening portions can be formed on two corner angle in four corner angle for forming outer wall 112e 116e.Such as：In four corner angle walls for forming outer wall 112e, two corner angle walls can be only existed.It furthermore it is possible to will phase each other To the part for being equivalent to two corner angle walls remove, two corner angle walls be outer wall 112e corner angle wall in and magnetic core portion 113e long The corner angle wall that the extended line in degree direction meets.
Figure 12 is the stereogram for the lower part magnetic core 12a shapes for being shown according to the 6th alternative solution, and Figure 13 is to be shown according to the 7th The stereogram of the lower part magnetic core 12b shapes of alternative solution, Figure 14 are the lower part magnetic core 12c shapes for being shown according to the 8th alternative solution Stereogram.Each lower plate 121a, 121b, 121c tool of lower part magnetic core 12a, 12b, 12c according to the 6th to the 8th alternative solution There is octagonal shape.
According to Figure 12, inner wall is not configured on lower plate 121a, can form hole 123a.Therefore, lower plate can with Fig. 7 and One in top magnetic core 11a, 11b shown in 8 is used as the magnetic element of transformer together.
It is prominent on lower plate 121b to be formed there are two inner wall 122b according to Figure 13, it is not provided with hole.Such as：Figure 13 institutes The lower part magnetic core 12b shown can be used as the magnetic element of transformer together with magnetic core 11c in top shown in Fig. 9.
According to Figure 14, inner wall 122c has eight open prism shapes of a part, on the whole with "U" shaped shape. " u "-shaped inner wall 122c can be used as magnetic element together with the top magnetic core 11 shown in Fig. 1~5, when with 11 groups of the top magnetic core After installing, the periphery in the magnetic core portion 113 that inner wall 122c can be surrounded.
In addition, the corner part 124c protruded inwardly is formed in two ends of " u "-shaped inner wall 122c.Corner part 124c can To guide secondary coil L2 shown in Fig. 2 towards hole 123c.In addition, being assembled into after magnetic element, inner wall 122c is just around just Most of configuration in space between grade coil L1 and secondary coil L2, thus can increase primary coil L1 and secondary coil L2 it Between leakage inductance.
Figure 15 is the stereogram for the lower part magnetic core 12d shapes for being shown according to the 9th alternative solution, and Figure 16 is to be shown according to the 10th The stereogram of the lower part magnetic core 12e shapes of alternative solution, Figure 17 is the lower part for being shown according to the 11st alternative solution of one embodiment The stereogram of magnetic core 12f shapes.Each lower plate 121d of lower part magnetic core 12d, 12e, 12f according to the 9th to the 11st alternative solution, 121e, 121f have the shape of quadrangle.
It is prominent on the lower plate 121d of quadrangle to be formed there are two inner wall 122d according to Figure 15, and lower plate penetrates through There is hole 123d.Therefore, magnetic core 12d in lower part can be used as the magnetic element of transformer together with magnetic core 11d in top shown in Fig. 10.
According to Figure 16, the inner wall 122e to be formed is protruded with "U" shaped shape from the lower plate 121e of quadrangle.Work as lower part When magnetic core 12e is assembled together with magnetic core 11d in top shown in Fig. 10 and formed magnetic element, " u "-shaped inner wall 122e can be incited somebody to action Magnetic core portion 113d is surrounded.In addition, the corner part 124e protruded inwardly is formed in two ends of " u "-shaped inner wall 122e.
It is prominent on the lower plate 121f of quadrangle to be formed there are one inner wall 122f according to Figure 17, and lower plate penetrates through There is hole 123f.Therefore, magnetic core 12f in lower part can be used as the magnetic element of transformer together with magnetic core 11d in top shown in Fig. 10.
Figure 18 is the stereogram for the transformer 2 for being shown according to another embodiment, and Figure 19 is shown according to another embodiment Transformer 2 decomposes the exploded perspective view of shape, and Figure 20 is 2 decomposing shape of transformer shown from being observed from the different directions of Figure 19 The exploded perspective view of shape.Inscape with the inscape same names illustrated with front with reference to Fig. 1~17, it is possible to understand that It is identical to have the function of each other.
According to the transformer 2 of another embodiment, including：The skeleton 40 being inserted between magnetic element 30.Magnetic element 30 The length direction of length direction and skeleton 40 can be mutually perpendicular to configure.Therefore, skeleton 40 will not be completely accommodated in magnetic element It is prominent outside some 415,416 meeting magnetropism element 30 in 30.
Magnetic element 30, including：Top magnetic core 31, is made of magnetisable material；Lower part magnetic core 32, by magnetic material texture Into, lower part magnetic core 32 and top magnetic core 31 with reference to and form inner space.Top magnetic core 31, including：Upper plate 311；Along upper plate 311 Edge is with respect to the 1st outer wall 312 that upper plate 311 is formed towards vertical direction.In addition, magnetic core portion 314 is formed on upper plate 311.Under Portion's magnetic core 32, including：Lower plate 321 has and 311 corresponding shape of upper plate；2nd outer wall 322, along the edge of lower plate 321 Opposite lower plate 321 is formed towards vertical direction in the way of it can be combined with the 1st outer wall 312；Magnetic core portion 323, it is prominent from lower plate 321 Go out to be formed；And at least one inner wall 324, it is prominent between the 2nd outer wall 322 and magnetic core portion 323 to be formed.
The height in the magnetic core portion 314 being formed on upper plate 311 and the height in magnetic core portion 323 that is formed in lower plate 321 it With the height no more than inner wall 324.Such as：The height in each magnetic core portion 314,323 is about the half of 324 height of inner wall.Separately Outside, magnetic core portion 323 and inner wall 324 have the longitudinal length shape longer than lateral length.
Upper plate 311 and lower plate 321 have the shape of quadrangle, and the 1st outer wall 312 and the 2nd outer wall 322 are formed only in respectively On two corner angle in plate 311 and 4 corner angle of lower plate 321.Therefore, upper plate 311 and the other two corner angle of lower plate 321 have been in The form of Full-open.In addition, the 1st outer wall 312 and the 2nd outer wall 322 are formed only in upper plate 311 and four ribs of lower plate 321 respectively In angle on the parallel longitudinal corner angle of magnetic core portion 323 and inner wall 324.
Skeleton 40 can be bonded to each other with magnetic element 30.Skeleton 40, including：2nd skeleton 42, by magnetic core portion 323 and interior Wall 324 penetrates through；And the 1st skeleton 41, it is combined with top magnetic core 31, and a part for the 1st skeleton 41 is contained in the 2nd skeleton 42 It is interior.According to Figure 19, top magnetic core 31, the 1st skeleton 41, the 2nd skeleton 42 and lower part magnetic core 32 can be since upsides by suitable Sequence configures.Therefore, skeleton 40 is penetrated through by magnetic core portion 314,323 and inner wall 324, and a part 415,416 for skeleton 40 is from by magnetism The inner space that element 30 is formed extends outward.
1st skeleton 41, including：Frame board 411 is formed with the hole for making to penetrate through positioned at the magnetic core portion 314 of top magnetic core 31 411a；1st skeleton portion 412 is connected with frame board 411；Lower plate 413, offside and the 1st skeleton portion 412 in frame board 411 Connection.2nd skeleton 42, including：Upper plate 421 is formed with the hole 421a for making the 1st skeleton portion 412 and the perforation of lower plate 413；2nd bone Frame portion 422 is connected with upper plate 421；And lower plate 423, it is connected with the 2nd skeleton portion 422, and is formed with and makes magnetic core portion 323 And hole 423a, 423b that inner wall 324 penetrates through.
The lower plate 413 of 1st skeleton 41 has shape corresponding with the hole 421a shapes of the 2nd skeleton 42.Lower plate 413 and hole 421a has the shape of such as " I " word.Therefore, the 2nd skeleton portion 422 may make up the wall to form " I " the font hole.In addition, work as After lower plate 413 is inserted into the 421a of hole, the relative rotation between the 1st skeleton 41 and the 2nd skeleton 42 can be prevented.
Primary coil L1 shown in Fig. 2 is configured in the 2nd skeleton portion 422, Fig. 2 institutes are configured in the 1st skeleton portion 412 The secondary coil L2 shown.In be configured with to be connected with primary coil L1 on the extended part 416 in 411 one side of frame board 1 terminal 43.In addition, it is configured with to connect with secondary coil L2 on the extended part 415 of opposite opposite side to frame board 411 The 2nd terminal 44 connect.
At least one partition wall 424 for being used to accommodate inner wall 324 is formed in the inside in the 2nd skeleton portion 422.Therefore, exist In a state that transformer 2 assembles, inner wall 324, Ke Yi can be configured between the 2nd skeleton portion 422 and the 1st skeleton portion 412 Inner wall 324 is configured between primary coil L1 and secondary coil L2.
The guiding piece 417 that the center position of oriented frame board 411 protrudes is formed on the frame board 411 of the 1st skeleton 41, It is formed on the upper plate 311 of top magnetic core 31 with 315 guiding piece 417 of groove with 417 correspondingly-shaped of guiding piece with more to bone The narrower conical by its shape of the central width of frame plate 411.Since groove 315 and guiding piece 417 are bonded to each other, work as transformer 2 After assembling, it becomes possible to prevent 40 relative magnetism element 30 of skeleton from rotating.
It provides to enhance the integrated structure for combining power between the 2nd skeleton 42 and the 1st skeleton 41 on skeleton 40.The 2nd It is formed on the upper plate 421 of skeleton 42 along the direction vertical with upper plate 421 with reference to wall 425.With reference to wall 425 in the 2nd skeleton 42 Upper plate 421 on be configured on the respective both ends of two corner angle parallel with the length direction of the 2nd skeleton 42.In addition, it is tying It combines harmoniously and is formed with hole 421b on 425.It is formed with to be inserted into the hole 421b on the frame board 411 of the 1st skeleton 41 With reference to protrusion 411b.The one of the both sides of the lateral of magnetropism element 30 is configured on the 1st skeleton 41 with reference to protrusion 411b On part 415,416.Therefore, the cohesive process between the 2nd skeleton 42 and the 1st skeleton 41 is as follows：First, by the 1st skeleton 41 413 and the 1st skeleton portion 412 of lower plate is inserted into the hole 421a of the 2nd skeleton 42.Then, with reference to protrusion 411b with being connect with reference to wall 425 It touches, is outwards unfolded with reference to wall 425.Finally, with reference in protrusion 411b insertions hole 421b, mutual position is fixed.
According to Figure 20, it is formed with to be inserted into the hole 413a in magnetic core portion 323 in the lower plate 413 of the 1st skeleton 41.Separately Outside, the hole 423a for being inserted into magnetic core portion 323 and the hole for being inserted into inner wall 324 are formed in the lower plate 423 of the 2nd skeleton 42 423b。
In the following, the transformer 2 ' of the 1st and the 2nd alternative solution of the transformer 2 according to another embodiment, 2 " will be said It is bright.Herein, pair part for forming repetition with transformer 2 described above will be omitted to illustrate, and part is only distinguished with it Centered on illustrate.
Figure 21 is the exploded perspective view for the decomposition shape of transformer 2 ' for being shown according to another the 1st alternative solution of embodiment.
Magnetic core portion 323 ' and an inner wall 324 ' are configured in the lower plate 321 ' of lower part magnetic core 32 '.Magnetic core portion 323 ' and Inner wall 324 ' can carry out symmetrical arrangements with respect to the center of lower plate 321 '.In addition, on the upper plate 311 ' of top magnetic core 31 ' with 323 ' corresponding the position of magnetic core portion of lower plate 322 ' is formed with magnetic core portion.
There are one partition walls 424 ' for medial surface configuration in the 2nd skeleton portion 422 ' of the 2nd skeleton 42 '.It is formed at upper plate Hole 421a ' on 421 ' has shape corresponding with the lower plate 413 ' of the 1st skeleton 41 ', and it is substantially in "U" shaped that hole 421a ', which has, Shape.
The guiding piece 417 ' that the center of oriented frame board 411 ' protrudes is configured on the frame board 411 ' of the 1st skeleton 41 '.Draw Guiding element 417 ' can be combined with the groove 313 ' being formed on the upper plate 311 ' of top magnetic core 31 '.In addition, in order to make the 2nd skeleton 42 ' And the 1st skeleton 41 ' be combined with each other, be formed on the 1st skeleton 41 ' with reference to protrusion 411b ', knot be configured on the 2nd skeleton 42 ' Combine harmoniously 425 ' and hole 421b '.
Figure 22, which is the transformer 2 for being shown according to another the 2nd alternative solution of embodiment, " decomposes the exploded perspective view of shape, figure 23, which be to show the transformer observed from the direction different from Figure 22 2, " decomposes the exploded perspective view of shape.
Transformer 2 ", including：Magnetic element 30 ", skeleton 40 ".Skeleton 40 " is not separated into multiple portions, has and forms The integrated form of one.Therefore, skeleton 40 " has simple, compact structure.
Magnetic core portion 314 " and inner wall 316 " is formed on top magnetic core 31 " upper plate 311 ".In addition, in lower part magnetic core Magnetic core portion 323 " and inner wall 324 " is also formed on 32 " lower plate 321 ".Therefore, magnetic core portion 314 ", 323 " and inner wall 316 ", On 324 " being respectively formed in top magnetic core 31 " and lower part magnetic core 32 ".Since magnetic core portion 314 ", 323 " and inner wall 316 ", 324 " are inserted Enter skeleton 40 " in, therefore the combination power between magnetic element 30 " and skeleton 40 " can be enhanced.
Skeleton 40 ", including：Frame board 411 ", be formed with thereon make core 323 " with inner wall 324 " perforation hole 411a ", 413b″；Skeleton portion 412 " " is connected with frame board 411；And lower plate 423 ", " it is connected with skeleton portion 412.In lower plate 423 " can above connect additional skeleton 421 ".
In skeleton portion 412 " on be configured with primary coil L1 shown in Fig. 2.In addition, in additional skeleton 42 " on be configured with Secondary wire coil L2 shown in Fig. 2.In frame board 411 " extended a part of 415 ", 416 " on be configured with terminal 44 ", 43 ".
Figure 24 is the exploded perspective view for the transformer 3 for being shown according to another embodiment, and Figure 25 is shown will be shown in Figure 24 The sectional view that transformer 3 is blocked along BB lines, Figure 26 are the exploded perspectives for the decomposition shape of transformer 3 for being shown according to another embodiment Figure.
According to the transformer 3 of another embodiment, including：Magnetic element 50, skeleton 60, shell 70.Magnetic element 50, bag It includes：Top magnetic core 51, is made of magnetisable material；Lower part magnetic core 52, is made of magnetisable material, lower part magnetic core 52 and top magnetic Core 51 forms the inner space with certain form together.
Top magnetic core 51, including：Upper plate 511；Surround the 1st outer wall 512 of upper plate；From the magnetic core portion that upper plate 511 protrudes 513；And to inner wall 514 prominent between the 1st outer wall 512 and magnetic core portion 513.Lower part magnetic core 52, including：Lower plate 521；It surrounds 2nd outer wall 522 of lower plate 521；From the magnetic core portion 524 that lower plate 521 protrudes；And between the 2nd outer wall 522 and magnetic core portion 524 Prominent at least one inner wall 525.In a state that magnetic element 50 is assembled, below the 1st outer wall 512 with the 2nd outer wall 522 the upper surface of are engaged with each other.
Skeleton 60, including：1st skeleton 61 forms one and annular surrounds magnetic core portion 513,524 and inner wall 514,525 weeks Side；2nd skeleton 62 is configured to be contained in the 1st skeleton 61, forms an annular encirclement core 524.1st skeleton 61 and the 2nd The height in space of the height of skeleton 62 actually with being formed inside magnetic element 50 is equal.
Towards by magnetic core portion 513,524 and inner wall 514, the direction at 525 centers on the 1st outer wall 512 and the 2nd outer wall 522 It is respectively formed with two openings 515,523 relative to each other.Primary coil L1 from the opening 515 adjacent with magnetic core portion 513,524, 523 draw, and secondary coil L2 is that the opening 515,523 adjacent with inner wall 514,525 is drawn from its offside.
Magnetic core portion 513,524 and inner wall 514,525 can be configured asymmetricly in upper plate 511 and lower plate 521.Magnetic core portion 513rd, 524 center is arranged respectively at the one side of upper plate 511 and lower plate 521, and center of the center from upper plate and lower plate has centainly Distance.Inner wall 514,525 is being provided with the one of magnetic core portion 513,524 by configuration on the basis of the center of upper plate 511 and lower plate 521 The offside of side.
Shell 70, including：Outer casing bottom 71；It is surrounded in the form of vertical with outer casing bottom 71 outside the shell of outer casing bottom 71 Wall 72.Outer casing bottom 71 and outer shell outer wall 72 form the space of form corresponding with the assembly of magnetic element 50.Will magnetic member In a state that part 50 and skeleton 60 assemble, it can be contained in the space of form corresponding with the assembly of magnetic element 50.
Adhesion substance 75 is coated in outer casing bottom 71.Be connected with primary coil L1 is configured in the one side of shell 70 1 terminal 73 is configured with the 2nd terminal 74 being connected with secondary coil L2 in the opposite side of shell 70.The lower plate 521 of lower part magnetic core 52 It can be attached to by adhesion substance 75 on outer casing bottom 71.Therefore, it becomes possible to prevent in 3 transport process China and foreign countries shell 70 of transformer It is separated with magnetic element 50.
Magnetic element 50 substantially has quadrangle form of the turning through arc process, and skeleton 60 is also therefore with turning through arc The quadrangle form of shape processing.One corner angle of the 1st skeleton 61 are configured between 525 and the 2nd outer wall 522 of inner wall, the 1st skeleton 61 Offside corner angle configure between 524 and the 2nd outer wall 522 of magnetic core portion.One corner angle of the 2nd skeleton 62 are configured in magnetic core portion 524 Between inner wall 525.
Inner wall 514,525 is configured along center line CL, on the whole with linear (linear) shape.Therefore, inner wall 514,525 There is length direction along center line CL.According to Figure 25, the linear shapes of center line CL.In addition, the configuration of inner wall 514,525 exists Between primary coil L1 and secondary coil L2, so as to increase leakage inductance.
Magnetic core portion 513,524 has symmetric shape on the whole, and magnetic core portion has positive multi-edge column-shaped of the turning through arc process Shape, such as：Magnetic core portion 513,524 has quadrangular shape of the turning through arc process.Unlike this, magnetic core portion 513,524 Also there can be cylindrical shape.
Figure 27 is the exploded perspective view for the transformer 3 ' for being shown according to another the 1st alternative solution of embodiment, and Figure 28 is to show The top view of the lower core 52 ' of transformer 3 ' according to another the 1st alternative solution of embodiment.In transformer 3 ', magnetic element The shape of magnetic element 50 of the 50 ' shape from being described above is different, therefore the shape of skeleton 60 ' also differs.
Transformer 3 ', including：Magnetic element 50 ', skeleton 60 ', shell 70 '.Magnetic element 50 ', including：Top magnetic core 51 ', lower part magnetic core 52 '.Skeleton 60 ', including：It is configured with the 1st skeleton 61 ' of primary coil L1；It is configured with secondary coil L2's 2nd skeleton 62 '.Shell 70 ' can accommodate assembled magnetic element 50 ' and skeleton 60 ', and end is configured in the both sides of shell 70 Son 73 ', 74 '.
Top magnetic core 51 ', including：Upper plate 511 ', the 1st outer wall 512 '.Opening there are two being formed on the 1st outer wall 512 ' 513′.Lower part magnetic core 52 ', including：Lower plate 521 ', the 2nd outer wall 522 '.Opening 523 ' there are two being formed on the 2nd outer wall 522 '.
Magnetic core portion 524 ' and inner wall 525 ' are formed in lower plate 521 ', the center line of inner wall 525 ' is in curved form, So as to which inner wall 525 ' can get up 524 ' perimeter of magnetic core portion.That is, inner wall 525 ' on the whole have circular shape (such as： Eyebrow or crescent-shaped).
Magnetic core portion 524 ' has ellipse or semiellipse (home stre tch) shape similar with ellipse on the whole. Half-oval shaped refers to, as track and field runway, center section has rectilinear configuration, and both sides have outwardly curved shape Shape.
According to Figure 27, the space that the 1st skeleton 61 ' is formed has and 62 ' corresponding shape of the 2nd skeleton on the whole.Separately Outside, since magnetic core portion 524 ' is surrounded by the 2nd skeleton 62 ', the 2nd skeleton 62 ' has the shape similar with core 524 '. Further, since the 2nd skeleton 62 ' is surrounded by the lower portion of the 1st skeleton 61 ', therefore forms space for the 1st skeleton 61 ', It is shorter than with the lateral length of 524 ' adjacent part of magnetic core portion with the lateral length of 525 ' adjacent part of inner wall.
It is shorter than the lateral length in magnetic core portion 524 ' along the horizontal maximum length of the center line CL of inner wall 525 '.In such case Under, the difference of the 61 ' lower portion lateral length of upper portion lateral length and the 1st skeleton in the space that the 1st skeleton 61 ' is formed can be with Further increase.
More than, the technological thought of the present invention is illustrated by example shown in part of the embodiment and attached drawing.But By above description, the technical staff with the technical field of the invention general knowledge completely can be without departing from skill of the present invention In the range of art thought, a variety of displacements, deformation and change are carried out.In addition, the displacement, deformation and change fall within appended right In the range of claim.

Claims (39)

1. a kind of magnetic element, which is characterized in that including：
Top magnetic core, is made of magnetisable material；And
Lower part magnetic core, is made of magnetisable material, the lower part magnetic core and the top magnetic core with reference to and form inner space,
The top magnetic core, including：
Upper plate, the shape with polygon；
Outer wall is formed along the edge of the upper plate, and the relatively described upper plate of the outer wall extends towards vertical direction；And
Magnetic core portion, and the vertical direction configured in parallel,
The lower part magnetic core, including：
Lower plate is combined with the outer wall；And
At least one inner wall, from the lower plate to prominent between the outer wall and the magnetic core portion,
The magnetic core portion is configured in the asymmetrical position in center of relatively described lower plate, and the inner wall arrangement is in relatively described magnetic core The position that portion separates.
2. magnetic element according to claim 1, which is characterized in that
The magnetic core portion is in line-shape arrangement along its length.
3. magnetic element according to claim 2, which is characterized in that
The inner wall has linear shape, and the length direction of the inner wall is parallel with the length direction in the magnetic core portion.
4. magnetic element according to claim 3, which is characterized in that
An inner wall is provided, one inner wall arrangement is between the outer wall in the magnetic core portion and the adjacent magnetic core portion.
5. magnetic element according to claim 2, which is characterized in that
The inner wall has U-shaped, so as to surround the periphery in the magnetic core portion.
6. magnetic element according to claim 5, which is characterized in that
The corner part protruded inwardly is formed in two ends of the inner wall.
7. magnetic element according to claim 3, which is characterized in that
The outer wall has the polygonal shape for including multiple corner angle, is formed at least at least one corner angle of the outer wall One is used for the opening for drawing electric wire.
8. magnetic element according to claim 7, which is characterized in that
In multiple corner angle of the outer wall, the opening is formed at the extended line phase with the inner wall or magnetic core length direction On the corner angle of chance.
9. magnetic element according to claim 3, which is characterized in that
The outer wall has the polygonal shape for including multiple corner angle, in the multiple corner angle on two corner angle relative to each other It is respectively formed with the opening portion that at least a portion is blocked.
10. magnetic element according to claim 9, which is characterized in that
Described two corner angle are the corner angle to meet with the extended line of the outer wall or magnetic core length direction.
11. magnetic element according to claim 7, which is characterized in that
The hole for penetrating through electric wire is formed in the lower plate, the hole configuration is in pair for the opening for being formed at the outer wall Side.
12. magnetic element according to claim 9, which is characterized in that
The upper plate has quadrangle or octagonal shape, and the outer wall has quadrangle or octagonal shape, thus will The corner angle of the upper plate surround.
13. a kind of magnetic element, which is characterized in that including：
Top magnetic core, is made of magnetisable material；And
Lower part magnetic core, is made of magnetisable material, the lower part magnetic core and the top magnetic core with reference to and form inner space,
The top magnetic core, including：
Upper plate；And
1st outer wall is formed along the relatively described upper plate in the edge of the upper plate towards vertical direction,
The lower part magnetic core, including：
Lower plate has shape corresponding with the upper plate；
2nd outer wall, along the edge of the lower plate so as to the 1st outer wall with reference to the opposite lower plate of mode towards vertical Direction is formed；
Magnetic core portion protrudes to be formed from the lower plate；And
At least one inner wall, it is prominent between the outer wall and magnetic core portion to be formed,
The center of the relatively described lower plate in magnetic core portion asymmetricly configures, and the inner wall arrangement separates in relatively described magnetic core portion Position on.
14. magnetic element according to claim 13, which is characterized in that
The center line of the inner wall along the inner wall is in line-shape arrangement.
15. magnetic element according to claim 13, which is characterized in that
The center configuration in the magnetic core portion in the one side of the lower plate, the center from the center of the lower plate be separated by it is certain away from From,
The inner wall is configured on the basis of the center of the lower plate in the offside for the one side for being provided with the magnetic core portion.
16. magnetic element according to claim 14, which is characterized in that
The magnetic core portion has quadrangle form of the turning through arc process, and the center line of the inner wall has rectilinear configuration.
17. magnetic element according to claim 14, which is characterized in that
The magnetic core portion has oval or semiellipse shape,
The center line of the inner wall is in curved form, so as to surround the periphery in the magnetic core portion.
18. magnetic element according to claim 17, which is characterized in that
The inner wall has the shape of circular arc on the whole.
19. magnetic element according to claim 17, which is characterized in that
The maximum length of the inner wall length direction is shorter than the diameter in the magnetic core portion.
20. magnetic element according to claim 15, which is characterized in that
On the 1st outer wall and the 2nd outer wall, phase each other is formed with along by the direction in the magnetic core portion and the inner wall center To two opening.
21. magnetic element according to claim 13, which is characterized in that
The upper plate and lower plate have the shape of quadrangle, and the 1st outer wall and the 2nd outer wall are formed only on described respectively On two corner angle in plate and 4 corner angle of the lower plate.
22. magnetic element according to claim 21, which is characterized in that
The magnetic core portion and the inner wall have a longitudinal length shape longer than lateral length, the magnetic core portion and the inner wall Longitudinal direction is mutually parallel, and the 1st outer wall and the 2nd outer wall are respectively formed in parallel longitudinal with the magnetic core portion or the inner wall On corner angle.
23. a kind of transformer, which is characterized in that including：
Top magnetic core, is made of magnetisable material；
Lower part magnetic core, is made of magnetisable material, and the lower part magnetic core is formed together with the top magnetic core with certain form Inner space；And
Skeleton is configured in the inner space,
The top magnetic core, including：Upper plate, the shape with polygon；Outer wall is formed, phase along the edge of the upper plate The upper plate is vertically extended；And magnetic core portion, the center of the upper plate is formed at,
The lower part magnetic core, including：Lower plate has shape corresponding with the upper plate；At least one inner wall, described outer It is prominent between wall and magnetic core portion,
The skeleton, including：1st skeleton is combined with the magnetic core portion and inner wall perforation；And the 2nd skeleton, at least A part is prominent to the 1st skeleton, and the 1st skeleton is bound to so as to penetrate through.
24. transformer according to claim 23, which is characterized in that
1st skeleton, including：
1st skeleton portion has the shape of annular；
Upper plate is connected with the upper end in the 1st skeleton portion, and is formed with to make the magnetic core portion and the inner wall penetrates through Multiple holes；
Lower plate is connected with the lower end in the 1st skeleton portion, and is formed with the part perforation for making the 2nd skeleton Hole；And
At least one partition wall is formed at the medial surface in the 1st skeleton portion, will be wrapped for the hole for penetrating through the inner wall It encloses.
25. transformer according to claim 24, which is characterized in that
2nd skeleton, including：
2nd skeleton portion, with the size annular shape smaller than the 1st skeleton portion；
Lower plate is formed with the multiple holes for making the magnetic core portion and inner wall perforation；And
Terminal is configured in the one side of the lower plate.
26. transformer according to claim 25, which is characterized in that
The inner wall has a certain distance with separating below the top magnetic core upper plate.
27. transformer according to claim 25, which is characterized in that
1st skeleton is by least one inner wall and the perimeter in the magnetic core portion, and the 2nd skeleton is by the magnetic core Portion surrounds.
28. a kind of transformer, special type are, including：
Top magnetic core, is made of magnetisable material；
Lower part magnetic core, is made of magnetisable material, and the lower part magnetic core is formed together with the top magnetic core with certain form Inner space；And
Skeleton is contained in the inner space,
The top magnetic core, including：Upper plate；And the 1st outer wall, at least a portion of the upper plate is surrounded,
The lower part magnetic core, including：Lower plate；2nd outer wall surrounds at least a portion of the lower plate；Magnetic core portion, from institute State lower plate protrusion；And at least one inner wall, from the lower plate to prominent between the 2nd outer wall and magnetic core portion,
The skeleton is penetrated through by the magnetic core portion and inner wall, and the part of the skeleton is to the top magnetic core and lower part magnetic core Outer elongate.
29. transformer according to claim 28, special type are,
The skeleton, including：
Frame board is formed with the hole that the magnetic core portion is made to be penetrated through with the inner wall；
1st skeleton portion is connected with the frame board；And
2nd skeleton portion is connected with the frame board, and is surrounded by the 1st skeleton portion.
30. transformer according to claim 29, special type are,
The skeleton, further includes：
1st terminal is configured in the one side of the frame board；And
2nd terminal configures the opposite side in the frame board.
31. transformer according to claim 28, special type are,
The skeleton, including：
1st skeleton is penetrated through by the magnetic core portion and the inner wall；And
2nd skeleton is penetrated through by the magnetic core portion, and at least a portion of the 2nd skeleton is contained in the 1st skeleton,
The top magnetic core, the 2nd skeleton, the 1st skeleton and the lower part magnetic core configure in order.
32. transformer according to claim 31, special type are,
2nd skeleton, including：
Frame board is formed with the hole for making the magnetic core portion perforation；And
2nd skeleton portion is connected with the upper plate,
1st skeleton, including：
Upper plate is formed with the hole for the part perforation for making the 2nd skeleton portion；
1st skeleton portion is connected with the upper plate；And
Lower plate is connected with the 1st skeleton portion, and is formed with the hole for making the magnetic core portion and inner wall perforation.
33. transformer according to claim 32, special type are,
Medial surface in the 1st skeleton portion is formed at least one partition wall for being used to accommodate the inner wall.
34. transformer according to claim 32, special type are,
The guiding piece that the center of the oriented frame board is set to protrude on the frame board of the 2nd skeleton, in the top magnetic Groove corresponding with the guiding piece is formed on the upper plate of core.
35. a kind of transformer, which is characterized in that including：
Top magnetic core, is made of magnetisable material；
Lower part magnetic core, is made of magnetisable material, and the lower part magnetic core is formed together with the top magnetic core with certain form Inner space；And
Skeleton is contained in the inner space,
The top magnetic core, including：Upper plate；And the 1st outer wall, the upper plate is surrounded,
The lower part magnetic core, including：Lower plate；2nd outer wall surrounds the lower plate；Magnetic core portion is protruded from the lower plate； And at least one inner wall, it is prominent between the 2nd outer wall and magnetic core portion,
The center configuration in the magnetic core portion has a certain distance at the one side of the lower plate, center of the center from the lower plate,
The inner wall is configured on the basis of the center of the lower plate in the offside for the one side for being provided with the magnetic core portion.
36. transformer according to claim 35, which is characterized in that
The skeleton, including：
1st skeleton forms a ring-type, so as to surround the periphery in the magnetic core portion and the inner wall；And
2nd skeleton is configured to be contained in the 1st skeleton, and forms a ring-type, so as to surround the magnetic core portion.
37. transformer according to claim 36, which is characterized in that
Between the inner wall and the 2nd outer wall, a part for the 2nd skeleton is matched somebody with somebody for the part configuration of 1st skeleton It puts between the magnetic core portion and the inner wall.
38. transformer according to claim 35, which is characterized in that
It further includes：
Shell is used to accommodate the assembled top magnetic core and the lower core,
The lower plate attachment of the lower part magnetic core is on the housing.
39. the transformer according to claim 38, which is characterized in that
It further includes：
1st terminal is configured in the one side of the shell；And
2nd terminal configures the opposite side in the shell.
CN201711214329.8A 2016-11-30 2017-11-28 Magnetic element and transformer comprising same Active CN108122663B (en)

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