CN208706394U - Transformer and magnetic core assembly thereof - Google Patents
Transformer and magnetic core assembly thereof Download PDFInfo
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- CN208706394U CN208706394U CN201820973238.6U CN201820973238U CN208706394U CN 208706394 U CN208706394 U CN 208706394U CN 201820973238 U CN201820973238 U CN 201820973238U CN 208706394 U CN208706394 U CN 208706394U
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Abstract
The present disclosure provides a transformer and magnetic core assembly. The transformer includes a magnetic core assembly, a primary winding and at least one secondary winding. The magnetic core assembly comprises a first magnetic core, a second magnetic core and at least four magnetic columns, the first magnetic core and the second magnetic core are arranged in parallel, and the at least four magnetic columns are arranged between the first magnetic core and the second magnetic core. The primary winding is wound on at least one of the four magnetic columns. At least one secondary winding is wound on at least one of the at least four magnetic columns. The first magnetic core and the second magnetic core respectively comprise a central part and at least one extension arc part, wherein the central part is provided with at least one side edge, and the at least one extension arc part extends outwards from the at least one side edge of the central part.
Description
Technical field
This disclosure relates to a kind of magnetic element, in particular to a kind of transformer and its core assembly.
Background technique
In recent years, switched power supply is towards the trend development of miniaturization.In switched power supply, magnetic
Property element all occupy the certain proportion of power supply unit in terms of volume and loss, therefore reduce the volume and damage of magnetic element
Consumption is the effective means for reducing switched power supply overall volume and promoting power supply unit technical effect.However, magnetic
The reduction of property component size is usually associated with the increase of magnetic element loss, and the power density for being so unfavorable for power supply unit mentions
It rises, therefore the design and optimization of magnetic element are important topic.
In certain applications, such as high-power or high current application, will use in switched power supply more
A magnetic element, such as more than two independent transformers, so will so that overall volume increase, can not make power supply unit into
The miniaturization of one step.
In addition, the core assembly of aforementioned transformer mainly uses E-type magnetic core (such as EE type or EI type magnetic core) or U-shaped magnetic core
(such as UU type or UI type magnetic core), and by the auxiliary of bobbin winder bracket by armature winding and secondary windings be set around core assembly around
In space of lines.However, the core assembly of transformer whether E-type magnetic core or U-shaped magnetic core, be only capable of through single armature winding and
Single secondary windings carries out voltage conversion, and not only magnetic circuit winding structure is more dull, and can not effectively play the characteristic of magnetic core.Again
Then, E-type magnetic core or U-shaped magnetic core also use biggish winding space, so as to shorten around thread path, reduce magnetic resistance, increase heat dissipation,
But it will so keep the volume of integrated transformers excessive, be less useful for minimizing power supply unit.
In addition, winding placement path certainly will increase, and printed circuit board when using more than two independent transformers
Wiring space also need corresponding increase, cause cost to improve and increase transmission loss.Furthermore use more than two independent changes
Depressor not only increased costs, and have the missings such as magnetic flux leakage is higher, heat dissipation effect is poor, it can not advanced optimize.
In view of this, it is really necessary to develop the transformer and its core assembly of a kind of improvement, to solve prior art institute face
The problem of facing.
Utility model content
The disclosure is designed to provide a kind of transformer and its core assembly, passes through at least four magnetic poles of core assembly
Integration setting, and at least four magnetic pole can be arranged with coiling according to application demand respectively, whereby for multiple power sources converter
It uses, and reaches reduce volume simultaneously, reduce cost, promote transformer transfer efficiency, evenly dispersed electric current and heat radiation effect
Fruit.
In order to achieve the above object, a broader embodiment of the disclosure is to provide a kind of transformer, comprising core assembly, just
Grade winding and at least once grade winding.Core assembly include the first magnetic core, the second magnetic core and at least four magnetic poles, the first magnetic core with
Second magnetic core is arranged parallel to each other, and at least four magnetic poles are set between the first magnetic core and the second magnetic core.Armature winding is set around
At least one magnetic pole at least four magnetic pole.Grade winding is set around at least one of at least four magnetic pole at least once
Magnetic pole.First magnetic core and the second magnetic core respectively include central portion and at least one extension arc portion, and wherein central portion has at least side
Side, at least one extension arc portion are extended outwardly by least a side of central portion.
In order to achieve the above object, another broader embodiment of the disclosure is to provide a kind of transformer, include: a magnetic core group
Part, includes one first magnetic core, one second magnetic core and at least four magnetic poles, and first magnetic core and second magnetic core are parallel to each other row
Column, at least four magnetic pole are set between first magnetic core and second magnetic core, and at least four magnetic poles medium spacing is the smallest
The spacing of two magnetic poles is defined as a magnetic pole spacing；One armature winding is set around at least one of at least four magnetic pole
Magnetic pole；And grade winding at least once, at least one magnetic pole being set around at least four magnetic pole；Wherein, first magnetic core
Respectively including a central portion and at least one extension protrusion, the central portion with second magnetic core has at least a side, this at least one
Extending protrusion, at least a side extends outwardly by this of the central portion, this at least one extend protrusion and the side corresponding to it
Between maximum normal distance be less than or equal to the magnetic pole spacing half.
In order to achieve the above object, another broader embodiment of the disclosure is to provide a kind of core assembly, it include the first magnetic
Core, the second magnetic core and at least four magnetic poles.First magnetic core and the second magnetic core are arranged in parallel.At least four magnetic poles are set to the first magnetic
Between core and the second magnetic core.First magnetic core and the second magnetic core respectively include central portion and at least an extension, and central portion has extremely
Few a side, at least an extension are extended outwardly by least a side of central portion.
Detailed description of the invention
Figure 1A is the dismantling schematic diagram of the transformer device structure of the first embodiment of the present disclosure.
Figure 1B is the schematic cross-section of transformer shown in figure 1A.
Fig. 1 C is the structural schematic diagram of the core assembly of the first embodiment of the present disclosure.
Fig. 2A is the top view of the first magnetic core of the first embodiment of the present disclosure.
Fig. 2 B is the top view of the second magnetic core of the first embodiment of the present disclosure.
Fig. 3 A is the structural schematic diagram of the core assembly of the second embodiment of the present disclosure.
Fig. 3 B is the schematic cross-section of core assembly shown in Fig. 3 A.
Fig. 4 A is the top view of the first magnetic core of the core assembly of the second embodiment of the present disclosure.Fig. 4 B is that the disclosure second is real
Apply the top view of the second magnetic core of the core assembly of example.Fig. 5 A is the dismantling signal of the core assembly of the third embodiment of the present disclosure
Figure.
Fig. 5 B is the schematic cross-section of core assembly shown in Fig. 5 A.
Fig. 6 A is the dismantling schematic diagram of the core assembly of the fourth embodiment of the present disclosure.
Fig. 6 B is the top view of the first magnetic core of the fourth embodiment of the present disclosure.
Fig. 6 C is the top view of the second magnetic core of the fourth embodiment of the present disclosure.
Fig. 7 A is the dismantling schematic diagram of the core assembly of the fifth embodiment of the present disclosure.
Fig. 7 B is the top view of the first magnetic core of the fifth embodiment of the present disclosure.
Fig. 7 C is the top view of the second magnetic core of the fifth embodiment of the present disclosure.
Fig. 8 is the top view of the first magnetic core of a change case of the disclosure.
Fig. 9 is the top view of the first magnetic core of another change case of the disclosure.
Reference signs list
1: transformer device structure
2,2a, 2b, 2c, 2d: core assembly
21: the first magnetic cores
210,220: extending arc portion
210 ', 220 ': extending protrusion
211,221: central portion
Extend arc portion at 212: the first
Extend arc portion at 213: the second
214: third extends arc portion
215: first surface
Extend protrusion at 216: the first
216a, 216b: arc portion
216c: straight line portion
Extend protrusion at 217: the second
218: third extends protrusion
219: the four extend protrusion
21a: first side
21b: second side
21c: third side
21d: the four side
22: the second magnetic cores
Extend arc portion at 222: the first
Extend arc portion at 223: the second
224: third extends arc portion
225: second surface
Extend protrusion at 226: the first
Extend protrusion at 227: the second
228: third extends protrusion
229: the four extend protrusion
22a: first side
22b: second side
22c: third side
22d: the four side
23: magnetic pole
23a: the first sub- magnetic pole
23b: the second sub- magnetic pole
23c: the first end surfaces
23d: the second end surfaces
25: air gap
3: armature winding
3a: printed circuit board
3b: through hole
4: secondary windings
4a: the first support plate
4b: the second support plate
4c, 4d: through hole
5: printed circuit board
D: magnetic pole spacing
R: maximum normal distance
Specific embodiment
The some exemplary embodiments for embodying disclosure features and advantages will describe in detail in the explanation of back segment.It should be understood that
It is that the disclosure there can be various variations in different embodiments, does not all depart from the scope of the present disclosure, and therein
Illustrate and illustrate the use being inherently illustrated as, and nand architecture is in the limitation disclosure.
Figure 1A to Fig. 1 C is please referred to, Figure 1A is the dismantling schematic diagram of the transformer device structure of the first embodiment of the present disclosure, Figure 1B
For the diagrammatic cross-section of transformer shown in figure 1A, Fig. 1 C is the structural schematic diagram of the core assembly of the first embodiment of the present disclosure.
As shown, the transformer 1 of the disclosure includes core assembly 2, armature winding 3 and at least one secondary windings 4.Core assembly
2 include the first magnetic core 21, the second magnetic core 22 and at least four magnetic poles 23.In this present embodiment, core assembly 2 with have there are four
Magnetic pole 23 be it is preferred, at least one secondary windings 4 with two secondary windings 4 be it is preferred, but not limited to this.First magnetic core 21 with
Second magnetic core 22 is arranged in parallel with each other, and four magnetic poles 23 are to be arranged parallel to each other and be set to the first magnetic core 21 and the second magnetic core
Between 22, among four magnetic poles 23, the shortest distance between the adjacent magnetic pole 23 of the smallest two of them of spacing is defined as one
Magnetic pole spacing d.Four magnetic poles 23 respectively with 22 magnetic coupling of the first magnetic core 21 and the second magnetic core, whereby to form flux circuit.
In this present embodiment, the first magnetic core 21 includes first surface 215, and the second magnetic core 22 includes second surface 225, wherein
First surface 215 and second surface 225 are opposite.Each magnetic pole 23 is also comprising that can correspond to the group connects first sub- magnetic pole 23a and the
Two sub- magnetic pole 23b, the first sub- magnetic pole 23a are connected on the first magnetic core 21, and the second sub- magnetic pole 23b is connected in the second magnetic
On core 22.In detail, the first sub- magnetic pole 23a is connected in the first surface 215 of the first magnetic core 21, and the second sub- magnetic pole 23b connects
Connect the second surface 225 for being set to the second magnetic core 22.First sub- magnetic pole 23a includes the first end surfaces 23c, the second sub- magnetic pole 23a
Comprising the second end surfaces 23d, the first end surfaces 23c and the second end surfaces 23d respectively with the first surface 215 of the first magnetic core 21 and
The second surface 225 of second magnetic core 22 is parallel to each other.When the first sub- sub- magnetic pole 23b group of magnetic pole 23a and second connects, the first sub- magnetic
The first end surfaces 23c of column 23a connects fitting with corresponding group of the second end surfaces 23d of the second sub- magnetic pole 23b, to constitute the magnetic pole
23。
Fig. 2A and Fig. 2 B is please referred to, Fig. 2A is the top view of the first magnetic core of the first embodiment of the present disclosure, and Fig. 2 B is this public affairs
Open the top view of the second magnetic core of first embodiment.In this present embodiment, the first magnetic core 21 includes central portion 211 and extension arc portion
210, which includes that the first extension arc portion 212 and second extend arc portion 213, and wherein central portion 211 has first
Side 21a, second side 21b, third side 21c and four side 21d, first side 21a is opposite with second side 21b, the
Three side 21c are opposite with four side 21d and are connected to first side 21a and second side 21b.First extends arc portion
212 and second extension arc portion 213 extend outwardly respectively from the first side 21a of central portion 211 and second side 21b.The
Two magnetic cores 22 are identical as the structure of the first magnetic core 21, and the second magnetic core 22 includes central portion 221 and extends arc portion 220, extend arc portion
220 extend arc portion 222 and the second extension arc portion 223 comprising first, and wherein central portion 221 has first side 22a, second side
Side 22b, third side 22c and four side 22d, first side 22a is opposite with second side 22b, third side 22c and the 4th
Side 22d is opposite and is connected to first side 22a and second side 22b.First extends arc portion 222 and the second extension arc
Portion 223 extends outwardly from the first side 22a of central portion 221 and second side 22b respectively.As 1A, 1C, 2A and 2B scheme institute
Show, the first of the first magnetic core 21 extends arc portion 212 and the second extension arc portion 213 extends arc with the first of the second magnetic core 22 respectively
Portion 222 and the second extension arc portion 223 are opposite.Four magnetic poles 23 are the central portions for being correspondingly arranged or being adjacent to the first magnetic core 21
Four corners of the central portion 221 of 211 four corners and the second magnetic core 22, in detail, four the first sub- magnetic pole 23a are pair
Should be arranged or be adjacent to the first magnetic core 21 central portion 211 four corners and four the second sub- magnetic pole 23b be to be correspondingly arranged
Or four corners of the central portion 221 of the second magnetic core 22 are adjacent to, but not limited to this.Pass through aforementioned extension arc portion 210,220
Setting, magnetic loss, and improving radiating effect can be reduced.In this present embodiment, extend arc portion 210 first extend arc portion 212 with
A maximum normal distance r is defined between first side 22a corresponding to it, and maximum normal distance r is less than or equal between magnetic pole
Half away from d is preferred (i.e. r≤d/2).Similarly, extend the second of arc portion 210 extend arc portion 213, extend arc portion 220
The first extension arc portion 222 and the second extension arc portion 223 respectively with its corresponding to maximum normal distance between side be also smaller than
Or the half equal to magnetic pole spacing d is preferred.
In this present embodiment, the section of each magnetic pole 23 of four magnetic poles 23 is round or oval, and can be increased whereby
Sectional area optimizes magnetic flux density application, and can promote conversion transformer efficiency.In this present embodiment, four magnetic poles 23
The area of section of each magnetic pole 23 is equal.
In this present embodiment, armature winding 3 is that be set to the first support plate 3a, the first support plate 3a also include four through holes
3b is extended through for four magnetic poles 23 and is set in four through hole 3b, and armature winding 3 is rotating around set on four through hole 3b
Periphery.Two secondary windings 4 are respectively arranged on the second support plate 4a and third support plate 4b, and the second support plate 4a and third support plate
4b is respectively arranged at the two sides up and down of the first support plate 3a.Through hole 4c there are four being set on second support plate 4a, four through hole 4c points
Not Dui Ying the first support plate 3a four through hole 3b and be arranged, extend through and be disposed therein for four magnetic poles 23.Third support plate
Through hole 4d there are four setting on 4b, four through hole 4d respectively correspond the four through hole 3b and the second support plate 4a of the first support plate 3a
Four through hole 4c and be arranged, extend through and be disposed therein for four magnetic poles 23.When core assembly 2, armature winding 3, two
When a secondary windings 4 assembles, multiple magnetic poles 23 form a winding space between the first magnetic core 21 and the second magnetic core 22, make
Armature winding 3 is set to the first support plate 3a, and is set in winding space, and is set around four magnetic poles 23.One secondary windings 4
It is two magnetic poles 23 therein for being set to the second support plate 4a, and be set in winding space, and being set around four magnetic poles 23, separately
One secondary windings 4 is set to a third support plate 4b, and is also set in winding space, and is set around another in four magnetic poles 23
Outer two magnetic poles 23.It is acted on by the electromagnetic induction of core assembly 2, armature winding 3 and secondary windings 4, to realize voltage
Transmission and conversion.In this present embodiment, as shown in Figure 1B, the first support plate 3a, the second support plate 4a and third support plate 4b can framework shapes
At having a multiple-plate printed circuit board 5, and the first support plate 3a is between the second support plate 4a and third support plate 4b, but not as
Limit.It is emphasized that the winding mode of the armature winding 3 of the disclosure and multiple secondary windings 4 relative to core assembly 2
It is not limited with previous embodiment, and Shi Bianhua can be appointed according to practical application request.In some embodiments, armature winding 3 can be around
At least one magnetic pole 23 in four magnetic poles 23, in other words, armature winding 3 can only be set around wherein appointing for four magnetic poles 23
One or any two or wantonly three magnetic poles 23, winding mode can appoint Shi Bianhua according to practical application request, be not limited.
In addition, core assembly 2 also may include single secondary windings 4 in some embodiments, wherein the secondary windings 4 be set around to
At least one magnetic pole 23 in few four magnetic poles 23, winding mode can appoint Shi Bianhua according to practical application request, not with this
It is limited.
According to the conception of the disclosure, the first magnetic core 21 of disclosure core assembly 2, the second magnetic core 22 and at least four are utilized
Voltage transmission and conversion can be realized in conjunction with armature winding 3 and two secondary windings 4 in a magnetic pole 23, to realize using single whole
It closes magnetic element and realizes the output power for being equivalent to two or more traditional transformers.The transformer 1 of the disclosure can be simultaneously
The advantages that shortening winding placement path, can reach improving radiating effect and reduce magnetic flux leakage.In addition, four magnetic poles 23 also can foundation
Application demand carries out multiple winding, can make the use of multiple power sources converter, can reach and reduces volume, reduces cost and evenly dispersed
The technical effects such as electric current and heat dissipation.
Fig. 3 A is the structural schematic diagram of the core assembly of the second embodiment of the present disclosure, and Fig. 3 B is core assembly shown in Fig. 3 A
Schematic cross-section.As shown in 3A, 3B figure, the first magnetic core 21 of core assembly 2a, the second magnetic core 22 and four magnetic poles 23
It is, wherein phase similar to the first magnetic core 21 of core assembly 2 shown in 1A and 1C figure, the second magnetic core 22 and four magnetic poles 23
Same element numbers represent similar component structure and function, repeat no more in this.Different from shown in 1A, 1C, 2A, 2B figure
Core assembly 2, the sub- magnetic pole 23a of the first of four magnetic poles 23 of the core assembly 2a of the present embodiment are corresponding with the second sub- magnetic pole 23b
After group connects fitting, the shape between the second end surfaces 23d of the sub- magnetic pole 23b of the first end surfaces 23c and second of the first sub- magnetic pole 23a
At air gap 25.In some embodiments, it is by the first of the first sub- magnetic pole 23a that air gap 25, which is the gap of an Adjustable Range,
End surfaces 23c corresponds to group with the second end surfaces 23d of the second sub- magnetic pole 23b in a manner of being such as, but not limited to gluing and connects.Pass through
Four air gaps 25 are respectively formed in four magnetic poles 23, dissipate caused edge effect outward whereby to reduce the magnetic line of force, into
And 1 temperature of transformer can be reduced, and magnetic saturation phenomenon can be prevented, to reach the technical effect for reducing magnetic loss.
Fig. 4 A is the top view of the first magnetic core of the core assembly of the second embodiment of the present disclosure.Fig. 4 B is that the disclosure second is real
Apply the top view of the second magnetic core of the core assembly of example.As shown, in this present embodiment, the first magnetic core 21 and the second magnetic core 22
Separately include the extension arc portion 210 and extend arc portion 220 that two are oppositely arranged.The extension arc portion 210 of first magnetic core 21 includes the
One, which extends arc portion 212, second, extends arc portion 213 and third extension arc portion 214, and first extends the extension arc portion of arc portion 212, second
213 and third extend arc portion 214 it is outside from the first side 21a of central portion 211, second side 21b and third side 21c respectively
Extend.Second magnetic core 22 is identical as the structure of the first magnetic core 21.The extension arc portion 220 of second magnetic core 22 includes the first extension arc portion
222, second extends arc portion 223 and third extension arc portion 224, and first extends the extension arc portion 223 of arc portion 222, second and third
Extend arc portion 224 to extend outwardly from the first side 22a of central portion 221, second side 22b and third side 22c respectively, wherein
The first of first magnetic core 21 extend arc portion 212, second extend arc portion 213 and third extend arc portion 214 respectively with the second magnetic core 22
First extend arc portion 222, second and extend arc portion 223 and third to extend arc portion 224 opposite.By aforementioned extension arc portion 210,
220 setting can reduce magnetic loss, improving radiating effect, while can reduce the volume of core assembly 2, to need according to practical application
It asks and is installed in power circuit, to be conducive to miniaturising for power supply unit.In this present embodiment, extend arc portion
210 third extend arc portion 214 and extend arc portion 220 third extend arc portion 224 respectively with its corresponding between side most
Big vertical range is also smaller than or is preferred equal to the half of minimum magnetic pole spacing.
Fig. 5 A is the dismantling schematic diagram of the core assembly of the third embodiment of the present disclosure, and Fig. 5 B is core assembly shown in Fig. 5 A
Schematic cross-section.As shown in 5A and 5B figure, in this present embodiment, the first magnetic core 21 of the core assembly 2b of the disclosure,
Two magnetic cores 22 and four magnetic poles 23 be with the first magnetic core 21 of core assembly 2 shown in 1A and 1C figure, the second magnetic core 22 with
And four magnetic poles 23 are similar, wherein identical element numbers represent similar component structure and function, repeat no more in this.It is different
Each magnetic pole 23 of the core assembly 2 shown in 1A and 1C figure, four magnetic poles 23 of the core assembly 2b of the present embodiment is equal
For single cylindrical structure.When 21, four magnetic poles 23 of the first magnetic core and the second magnetic core 22 are mutually assembled, formed four magnetic poles with
Coiling is carried out, the output power of transformer is promoted to reach, shorten winding section office path, improving radiating effect and reduces magnetic flux leakage
Etc. technical effects.In addition, each magnetic pole 23 of four magnetic poles 23 and the first surface 215 and the second magnetic core 22 of the first magnetic core 21
Second surface 225 between be respectively formed air gap 25, in other words, between four magnetic poles 23 and the first magnetic core 21 formed four gas
Gap, and four air gaps are formed between four magnetic poles 23 and the second magnetic core 22, the side being arranged by the double air gaps 25 of each magnetic pole 23
Formula, can be greatly reduced the generation of edge effect, while reaching improving radiating effect, prevent magnetic saturation phenomenon, reduce magnetic loss
Technical effect.It in this present embodiment, is the shape in the way of gluing between four magnetic poles 23 and the first magnetic core 21 and the second magnetic core 22
It is connect at air gap and group, but not limited to this.
Fig. 6 A is the dismantling schematic diagram of the core assembly of the fourth embodiment of the present disclosure, and Fig. 6 B is the fourth embodiment of the present disclosure
The top view of first magnetic core, Fig. 6 C are the top view of the second magnetic core of the fourth embodiment of the present disclosure.As shown, in the present embodiment
In, the first magnetic core 21 of the core assembly 2c of the disclosure, the second magnetic core 22 and four magnetic poles 23 are schemed with 1A, 1C, 2A, 2B
Shown in the first magnetic core 21 of core assembly 2, the second magnetic core 22 and four magnetic poles 23 it is similar, wherein identical element numbers generation
The similar component structure of table and function, repeat no more in this.Different from core assembly 2, this reality shown in 1A, 1C, 2A, 2B figure
The section for applying four magnetic poles 23 of the core assembly 2c of example is strip, is respectively arranged at central portion 211 and central portion 221
Four endpoints, four magnetic poles 23 mode symmetrical on the basis of the symmetry axis of central portion 211 and central portion 221 are arranged,
In four magnetic poles 23 each long side it is parallel with the respective side of profile of the second magnetic core 22 with the first magnetic core 21 respectively.First magnetic
Core 21 includes to extend protrusion 210 ', and extending protrusion 210 ' includes that the first extension protrusion 216, second extends protrusion 217, third extends
Protrusion 218 and the 4th extend protrusion 219, and first extend protrusion 216, second extend protrusion 217, third extend protrusion 218 and
4th extends protrusion 219 as respectively from the first side 21a of central portion 211, second side 21b, third side 21c and the 4th side
The outwardly extending isosceles triangular structure of side 21d, and by the settings of this four extension protrusions, make the bottom surface of the first magnetic core 21 be in
Rectangle embodiment.Second magnetic core 22 of the present embodiment is identical as the structure of the first magnetic core 21.Second magnetic core 22 includes that extension is convex
Portion 220 ', extending protrusion 220 ' includes that the first extension protrusion 226, second extends protrusion 227, third extends protrusion the 228, the 4th and prolongs
Protrusion 229 is stretched, and first extends the extension protrusion 227 of protrusion 226, second, third extends protrusion 228 and the 4th extends protrusion 229
It is outwardly extending from the first side 22a of central portion 221, second side 22b, third side 22c and four side 22d respectively
Isosceles triangular structure, and by the setting of this four extension protrusions, making the bottom surface of the second magnetic core 22 is also in rectangle embodiment,
Wherein the first of the first magnetic core 21 extends protrusion 216, second and extends protrusion 217, third extension protrusion 218 and the 4th extension protrusion
219 extend protrusion 226, second with the first of the second magnetic core 22 respectively extends protrusion 227, the third extension extension of protrusion the 228, the 4th
Protrusion 229 is opposite.By the aforementioned setting for extending protrusion 210 ', 220 ', magnetic loss, improving radiating effect can be reduced, while can contract
Subtract the volume of core assembly 2c, is installed in power circuit with the magnetic core special shape demand according to practical application, thus sharp
In miniaturising for power supply unit.In some embodiments, extending protrusion 210 ', 220 ' also can only include one or two
A or three extension protrusions extend the set-up mode of protrusion, by part to be installed on electricity in response to magnetic core special shape demand
In source circuit, but not limited to this.In other embodiments, the shape for extending protrusion can be adjusted according to actual demand, such as
It can be rectangle, polygon or irregular shape etc., be not limited.
Fig. 7 A is the dismantling schematic diagram of the core assembly of the fifth embodiment of the present disclosure, and Fig. 7 B is the fifth embodiment of the present disclosure
The top view of first magnetic core, Fig. 7 C are the top view of the second magnetic core of the fifth embodiment of the present disclosure.As shown, in the present embodiment
In, the first magnetic core 21 of the core assembly 2d of the disclosure, the second magnetic core 22 and four magnetic poles 23 are schemed with 1A, 1C, 2A, 2B
Shown in the first magnetic core 21 of core assembly 2, the second magnetic core 22 and four magnetic poles 23 it is similar, wherein identical element numbers generation
The similar component structure of table and function, repeat no more in this.Different from core assembly 2, this reality shown in 1A, 1C, 2A, 2B figure
The section for applying four magnetic poles 23 of the core assembly 2d of example is strip, is respectively arranged at central portion 211 and central portion 221
Four endpoints, and point-symmetrically mode is arranged four magnetic poles 23 on the basis of the center of central portion 211 and central portion 221, wherein
Each long side of four magnetic poles 23 forms a certain degree with the respective side of the first magnetic core 21 and the profile of the second magnetic core 22 respectively.
First magnetic core 21 includes to extend protrusion 210 ', and extending protrusion 210 ' includes first to extend protrusion 216, second and extend protrusion 217, the
Three extend protrusion 218 and the 4th extension protrusion 219, and first extends the extension protrusion 217 of protrusion 216, second, third extends protrusion
218 and the 4th extend protrusion 219 be respectively from the first side 21a of central portion 211, second side 21b, third side 21c and
The outwardly extending triangular structure of four side 21d, and by the setting of this four extension protrusions, make the bottom surface of the first magnetic core 21
In rectangle embodiment.Second magnetic core 22 of the present embodiment is identical as the structure of the first magnetic core 21.Second magnetic core 22 includes to extend
Protrusion 220 ', extending protrusion 220 ' includes that the first extension protrusion 226, second extends protrusion 227, third extends protrusion the 228, the 4th
Extend protrusion 229, and first extends the extension protrusion 227 of protrusion 226, second, third extends protrusion 228 and the 4th extends protrusion
229 is respectively from the first side 22a of central portion 221, second side 22b, third side 22c and four side 22d to extension
The triangular structure stretched, and by the setting of this four extension protrusions, making the bottom surface of the second magnetic core 22 is also in rectangle embodiment,
Wherein the first of the first magnetic core 21 extends protrusion 216, second and extends protrusion 217, third extension protrusion 218 and the 4th extension protrusion
219 extend protrusion 226, second with the first of the second magnetic core 22 respectively extends protrusion 227, the third extension extension of protrusion the 228, the 4th
Protrusion 229 is opposite.By the aforementioned setting for extending protrusion 210 ', 220 ', magnetic loss, improving radiating effect can be reduced, while can contract
Subtract the volume of core assembly 2f, is installed in power circuit with the magnetic core special shape demand according to practical application, thus sharp
In miniaturising for power supply unit.In other embodiments of the disclosure, extending protrusion 210 ', 220 ' also can be in
The rectangular, rectangle or polygonized structure that centre portion 211,221 outwardly protrudes, but be not limited.
Fig. 8 is the top view of the first magnetic core of a change case of the disclosure.As shown, in a change case of the disclosure
In, the first of the extension protrusion 210 ' of the first magnetic core 21 extends protrusion 216 and includes two arc portions 216a, 216b and straight line portion 216c,
Wherein two arc portions 216a, 216b are connected to the central portion 211 of the first magnetic core 21, two arc portion 216a, 216b of straight line portion 216c connection
Between and the second extension protrusion 217 (do not scheme with the first extension protrusion 216 for symmetrically arranged structure and the second magnetic core
Show) it is identical as the structure of the first magnetic core 21, therefore repeated no more in this.By the aforementioned setting for extending protrusion 210 ', magnetic can be reduced
Damage, improving radiating effect, while the volume of core assembly can be reduced, pacified with the magnetic core special shape demand according to practical application
Loaded in power circuit, to be conducive to miniaturising for power supply unit.
Fig. 9 is the top view of the first magnetic core of another change case of the disclosure.As shown, in another variation of the disclosure
In example, it is by central portion 211 that the first of the extension protrusion 210 ' of the first magnetic core 21, which extends protrusion 216 and the second extension protrusion 217,
The trapezium structure and the second magnetic core (not shown) outwardly protruded is identical as the structure of the first magnetic core 21, therefore repeats no more in this.
By the aforementioned setting for extending protrusion 210 ', magnetic loss, improving radiating effect can be reduced, while the volume of core assembly can be reduced,
It is installed in power circuit with the magnetic core special shape demand according to practical application, to be conducive to the further of power supply unit
Miniaturization.
In conclusion the disclosure integrates magnetic by the way that at least four magnetic poles are integrated in transformer device structure, to reach single
Property element realize the output power of two or more traditional transformers, and shorten winding section office path, improving radiating effect
And magnetic flux leakage is reduced, multiple winding more is realized by multiple magnetic poles, can make the use of multiple power sources converter, to reach diminution body
Product reduces cost and the technical effects such as evenly dispersed electric current and heat dissipation.In addition, the disclosure more passes through the first magnetic core and the second magnetic core
Extension setting, make the area of the first magnetic core and the second magnetic core increase, promote heat dissipation effect and reduce magnetic loss, and make whole
The improved efficiency of body transformer.Furthermore the disclosure is by being arranged air gap in magnetic pole or between magnetic pole and magnetic core, to reduce magnetic force
Line dissipates caused edge effect outward, reaches improving radiating effect, prevents magnetic saturation phenomenon and reduces the technologies such as magnetic loss
Effect.
The disclosure appointed as person familiar with the technology apply craftsman think and be it is all as modify, it is so neither de- such as attached claim institute
It is intended to Protector.
Claims (20)
1. a kind of transformer, feature is, the transformer includes:
One core assembly, comprising one first magnetic core, one second magnetic core and at least four magnetic poles, first magnetic core and second magnetic core
It is arranged parallel to each other, which is set between first magnetic core and second magnetic core, at least four magnetic pole
The spacing of the smallest two magnetic poles of spacing is defined as a magnetic pole spacing；
One armature winding, at least one magnetic pole being set around at least four magnetic pole；And
Grade winding at least once, at least one magnetic pole being set around at least four magnetic pole；
Wherein, first magnetic core and second magnetic core, which respectively include a central portion and at least one extension arc portion, the central portion, has
At least a side, this at least one extends arc portion at least a side extends outwardly by this of the central portion, this at least one extends arc portion
With its corresponding to the side between maximum normal distance be less than or equal to the magnetic pole spacing half.
2. transformer as described in claim 1, which is characterized in that the section of any magnetic pole is round, ellipse or strip
Shape.
3. transformer as described in claim 1, which is characterized in that the structure of first magnetic core and second magnetic core is identical.
4. transformer as described in claim 1, which is characterized in that each magnetic pole includes that can correspond to the one first sub- magnetic that group connects
Column and one second sub- magnetic pole, the first sub- magnetic pole are set on a first surface of first magnetic core, the second sub- magnetic pole setting
In on a second surface of second magnetic core.
5. transformer as claimed in claim 4, which is characterized in that the first sub- magnetic pole includes one first end surfaces, this second
Sub- magnetic pole includes one second end surfaces, and wherein first end surfaces connect fitting for corresponding group with second end surfaces.
6. transformer as claimed in claim 5, which is characterized in that first end surfaces of the first sub- magnetic pole and second son
An air gap is formed between second end surfaces of magnetic pole.
7. transformer as described in claim 1, which is characterized in that any magnetic pole forms one between first magnetic core respectively
Air gap, and another air gap is formed between second magnetic core.
8. transformer as described in claim 1, which is characterized in that at least one to extend arc portion include one for this of first magnetic core
One, which extends arc portion, one second extension arc portion and a third, extends arc portion, wherein the first extension arc portion, the second extension arc portion
And the third extends arc portion and extends outwardly respectively from three sides of the central portion；Wherein at least one extension of second magnetic core
Arc portion includes one first extending arc portion, one second extending arc portion and a third and extend arc portion, wherein this first extend arc portion, should
Second extension arc portion and the third extend arc portion and extend outwardly respectively from three sides of the central portion；Wherein first magnetic core
This first extends that arc portion, this second extends arc portion and the third and extend arc portion and first extend arc with this of second magnetic core respectively
It is opposite that portion, the second extension arc portion and the third extend arc portion.
9. transformer as claimed in claim 8, which is characterized in that at least four magnetic pole be correspondingly arranged or be adjacent to this
Four corners of the central portion of four corners and second magnetic core of the central portion of one magnetic core.
10. transformer as described in claim 1, which is characterized in that at least one extension arc portion of first magnetic core includes one
First extends arc portion and one second extends arc portion, and wherein this first extends arc portion and this second extends arc portion respectively from this
The two opposite sides side in centre portion extends outwardly；Wherein second magnetic core this at least one extend arc portion include one first extend arc portion with
And one second extend arc portion, wherein this first extend arc portion and this second extend arc portion respectively from the two opposite sides of the central portion
While extending outwardly；Wherein first magnetic core this first extend arc portion and this second extend arc portion respectively with second magnetic core
The first extension arc portion and the second extension arc portion are opposite.
11. transformer as described in claim 1, which is characterized in that grade winding includes one first secondary windings at least once for this
And a second subprime winding, which is two magnetic poles being set around at least four magnetic pole, this second
Secondary windings is remaining magnetic pole being set around at least four magnetic pole.
12. transformer as claimed in claim 11, which is characterized in that the armature winding is set to one first support plate, this first
Secondary windings is set to one second support plate, which is set to a third support plate, and wherein first support plate, which is located at, is somebody's turn to do
Between second support plate and the third support plate.
13. a kind of transformer, which is characterized in that the transformer includes:
One core assembly, comprising one first magnetic core, one second magnetic core and at least four magnetic poles, first magnetic core and second magnetic core
It is arranged parallel to each other, which is set between first magnetic core and second magnetic core, at least four magnetic pole
The spacing of the smallest two magnetic poles of spacing is defined as a magnetic pole spacing；
One armature winding, at least one magnetic pole being set around at least four magnetic pole；And
Grade winding at least once, at least one magnetic pole being set around at least four magnetic pole；
Wherein, first magnetic core and second magnetic core, which respectively include a central portion and at least one extension protrusion, the central portion, has
At least a side, this at least one extends protrusion at least a side extends outwardly by this of the central portion, this at least one extends protrusion
With its corresponding to the side between maximum normal distance be less than or equal to the magnetic pole spacing half.
14. transformer as claimed in claim 13, which is characterized in that at least one extension protrusion of first magnetic core includes one
First extends protrusion, one second extension protrusion, third extension protrusion and one the 4th extension protrusion, and wherein first extension is convex
Portion, this second extend protrusion, the third extends protrusion and the 4th extends protrusion respectively from the four side of the central portion to extension
It stretches；Wherein at least one extension protrusion of second magnetic core is prolonged including one first extension protrusion, one second extension protrusion, a third
Stretch protrusion and one the 4th extend protrusion, wherein this first extend protrusion, this second extend protrusion, the third extends protrusion and this
Four extension protrusions extend outwardly from the four side of the central portion respectively；Wherein first magnetic core this first extend protrusion, this
Two extend protrusions, the third extend protrusion and the 4th extend protrusion respectively with second magnetic core this first extend protrusion, should
Second extends protrusion, the third extends protrusion and the 4th extension protrusion is opposite.
15. transformer as claimed in claim 13, which is characterized in that the extension protrusion also includes an at least arc portion and a straight line
Portion.
16. transformer as claimed in claim 13, which is characterized in that at least one extension protrusion is by the central portion convex
Rectangular, rectangle, trapezoidal or polygonized structure out.
17. transformer as claimed in claim 13, which is characterized in that grade winding includes one first secondary windings at least once for this
And a second subprime winding, which is two magnetic poles being set around at least four magnetic pole, this second
Secondary windings is remaining magnetic pole being set around at least four magnetic pole.
18. transformer as claimed in claim 17, which is characterized in that the armature winding is set to one first support plate, this first
Secondary windings is set to one second support plate, which is set to a third support plate, and wherein first support plate, which is located at, is somebody's turn to do
Between second support plate and the third support plate.
19. a kind of core assembly, which is characterized in that the core assembly includes:
One first magnetic core；
One second magnetic core, it is arranged in parallel with first magnetic core；And
At least four magnetic poles are set between first magnetic core and second magnetic core, and at least four magnetic poles medium spacing is the smallest
The spacing of two magnetic poles is defined as a magnetic pole spacing；
Wherein, first magnetic core and second magnetic core, which respectively include a central portion and at least one extension arc portion, the central portion, has
At least a side, this at least one extends arc portion at least a side extends outwardly by this of the central portion, this at least one extends arc portion
With its corresponding to the side between maximum normal distance be less than or equal to the magnetic pole spacing half.
20. a kind of core assembly, which is characterized in that the core assembly includes:
One first magnetic core；
One second magnetic core, it is arranged in parallel with first magnetic core；And
At least four magnetic poles are set between first magnetic core and second magnetic core, and at least four magnetic poles medium spacing is the smallest
The spacing of two magnetic poles is defined as a magnetic pole spacing；
Wherein, first magnetic core and second magnetic core, which respectively include a central portion and at least one extension protrusion, the central portion, has
At least a side, this at least one extends protrusion at least a side extends outwardly by this of the central portion, this at least one extends protrusion
With its corresponding to the side between maximum normal distance be less than or equal to the magnetic pole spacing half.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107206568U TWM569488U (en) | 2018-05-18 | 2018-05-18 | Transformer and core assembly thereof |
| TW107206568 | 2018-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208706394U true CN208706394U (en) | 2019-04-05 |
Family
ID=65034834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820973238.6U Active CN208706394U (en) | 2018-05-18 | 2018-06-22 | Transformer and magnetic core assembly thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208706394U (en) |
| TW (1) | TWM569488U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11205958B2 (en) | 2019-09-18 | 2021-12-21 | Delta Electronics, Inc. | Power conversion system |
| US11205963B2 (en) | 2019-09-18 | 2021-12-21 | Delta Electronics, Inc. | Multiphase buck converter with extended duty cycle range using multiple bootstrap capacitors |
| US11309878B2 (en) | 2019-09-18 | 2022-04-19 | Delta Electronics, Inc. | Power conversion system |
| US11532428B2 (en) | 2019-09-18 | 2022-12-20 | Delta Electronics, Inc. | Power conversion system and magnetic component thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI734125B (en) | 2019-06-17 | 2021-07-21 | 國立臺灣科技大學 | Transformer and series resonant converter including the same |
| TWI747508B (en) | 2020-09-17 | 2021-11-21 | 群光電能科技股份有限公司 | Planar winding transformer |
-
2018
- 2018-05-18 TW TW107206568U patent/TWM569488U/en unknown
- 2018-06-22 CN CN201820973238.6U patent/CN208706394U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11205958B2 (en) | 2019-09-18 | 2021-12-21 | Delta Electronics, Inc. | Power conversion system |
| US11205963B2 (en) | 2019-09-18 | 2021-12-21 | Delta Electronics, Inc. | Multiphase buck converter with extended duty cycle range using multiple bootstrap capacitors |
| US11309878B2 (en) | 2019-09-18 | 2022-04-19 | Delta Electronics, Inc. | Power conversion system |
| US11532428B2 (en) | 2019-09-18 | 2022-12-20 | Delta Electronics, Inc. | Power conversion system and magnetic component thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM569488U (en) | 2018-11-01 |
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