CN207572208U - A kind of two-phase coupling inductor and power supply - Google Patents
A kind of two-phase coupling inductor and power supply Download PDFInfo
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- CN207572208U CN207572208U CN201721802824.6U CN201721802824U CN207572208U CN 207572208 U CN207572208 U CN 207572208U CN 201721802824 U CN201721802824 U CN 201721802824U CN 207572208 U CN207572208 U CN 207572208U
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Abstract
The utility model embodiment discloses a kind of two-phase coupling inductor and power supply, and including the first magnetic core, the second magnetic core, the first winding and the second winding, the first magnetic core and the second magnetic core face are connected；The side being connect in first magnetic core with the second magnetic core is equipped with 5 magnetic poles, each magnetic pole respectively is the first side column, the first secondary center pillar, main center pillar, the second secondary center pillar and the second side column, a wire casing is formed between per two neighboring magnetic pole, each wire casing respectively is the first wire casing, the second wire casing, third wire casing and the 4th wire casing；First winding is equipped with the first conductor piece, the second conductor piece and the first non-electrode pin；Second winding is equipped with third conductor piece, the 4th conductor piece and the second non-electrode pin；First conductor piece, the second conductor piece, third conductor piece and the 4th conductor piece are respectively arranged in the first wire casing, third wire casing, the second wire casing and the 4th wire casing.Reducing the height of two-phase coupling inductor makes its lightening, conducive to the lightening of power supply and terminal device.
Description
Technical field
The utility model embodiment is related to inductive technologies field, more particularly to a kind of two-phase coupling inductor and power supply.
Background technology
In recent years, it is more and more applied in Power Management Design using the interleaving technique of two-phase or multi-phase coupling inductor
In.So-called crisscross parallel circuit is exactly that power supply duplex input is connected in parallel, and the working frequency of switching tube is identical, phase difference
Certain angle.As a result of Interleaving and Transformer Paralleling, the ripple of generation is frequently switched on by switching tube to be greatly reduced, and set in this way
When counting output filter capacitor, the design value of capacitance can be reduced.In the occasion of low-voltage, high-current using this technique effect more
Significantly, not only improve the quality of DC output voltage, can also reduce volume, save cost, many benefits are brought to subsequent design.
Using interleaving technique, two-way shares general power, can reduce per power all the way, per the height and volume of magnetic element all the way
It can greatly reduce, the volume of entire circuit is much smaller in identical output power with respect to single-phase circuit, thus improves
The power density of power supply, reduces power supply cost.
With the development of science and technology, user it is lightening to electronic product demand it is higher and higher, power supply is in electronic product
Essential device.At present, it is more and more applied in electricity using the interleaving technique of two-phase or multi-phase coupling inductor
In the design of source, and the two-phase coupling inductor or multi-phase coupling inductor used in crisscross parallel circuit, have to circuit performance
Critical influence.At present, existing two-phase coupling inductor mainly adjusts the coefficient of coup using secondary magnetic air gap,
Therefore it needs to add a secondary magnetic circuit except coupling inductance, since secondary magnetic circuit height in itself and length are larger, and in order to
The performance of entire double coupling inductors is kept, the secondary magnetic circuit that will be added is needed to be set to the top of coupling inductance, so as to increase
The whole height of entire two-phase coupling inductor, make two-phase coupling inductor of the prior art be difficult to meet terminal device it is light
Thinning design requirement.
In consideration of it, how to provide a kind of two-phase coupling inductor for solving above-mentioned technical problem and power supply becomes this field skill
The current urgent problem to be solved of art personnel.
Utility model content
The purpose of the utility model embodiment is to provide a kind of two-phase coupling inductor and power supply, can reduce two-phase coupling
The height of inductor makes two-phase coupling inductor lightening, and then is conducive to the lightening design of power supply and terminal device.
In order to solve the above technical problems, the utility model embodiment provides a kind of two-phase coupling inductor, applied to electricity
Source, including the first magnetic core, the second magnetic core, the first winding and the second winding, wherein：
First magnetic core is connected with the second magnetic core face, forms the flux circuit of coupling inductor；Described first
The side being connect in magnetic core with second magnetic core is equipped with 5 magnetic poles, and each magnetic pole respectively is the first side column, first
Secondary center pillar, main center pillar, the second secondary center pillar and the second side column, often form a wire casing, each line between two neighboring magnetic pole
Slot respectively is the first wire casing, the second wire casing, third wire casing and the 4th wire casing；It is described first winding equipped with the first conductor piece,
The end of second conductor piece and the first non-electrode pin, first conductor piece and second conductor piece is respectively equipped with the first electricity
Pole pin and second electrode pin；Second winding is equipped with third conductor piece, the 4th conductor piece and the second non-electrode pin, institute
The end for stating third conductor piece and the 4th conductor piece is respectively equipped with third electrode pin and the 4th electrode pin；Described first
Conductor piece, second conductor piece, the third conductor piece and the 4th conductor piece are respectively arranged at the first wire casing, third line
In slot, the second wire casing and the 4th wire casing.
Optionally, the one side edge of the first magnetic core upper surface is equipped with first step；The bottom of second magnetic core
Both sides of the edge are respectively equipped with second step and third step.
Optionally, first winding is U-shaped, and the first electrode pin and the second electrode pin are hook-shaped knot
Structure, and be connected on the second step；The first non-electrode pin is hook formation, and is connected in the first step
On.
Optionally, second winding is U-shaped, and the third electrode pin and the 4th electrode pin are hook-shaped knot
Structure, and be connected on the second step；The second non-electrode pin is hook formation, and is connected in the third step
On.
Optionally, the width of first side column and second side column is equal；Described first secondary center pillar and described second
The width of secondary center pillar is equal.
Optionally, the width phase of first wire casing, second wire casing, the third wire casing and the 4th wire casing
Deng.
Optionally, the thickness of first magnetic core is not more than the first predetermined threshold value, and the thickness of second magnetic core is not more than
Second predetermined threshold value.
Optionally, first predetermined threshold value is 2mm；Second predetermined threshold value is 1mm.
Optionally, first winding and the described second winding are the winding for forming tin plating copper sheet punching press bending.
The utility model embodiment additionally provides a kind of power supply, including two-phase coupling inductor as described above.
The utility model embodiment provides a kind of two-phase coupling inductor and power supply, including the first magnetic core, the second magnetic core,
First winding and the second winding, wherein, the first magnetic core and the second magnetic core face are connected, and form the flux circuit of coupling inductor；
The side being connect in first magnetic core with the second magnetic core is equipped with 5 magnetic poles, and each magnetic pole respectively is in the first side column, the first pair
Column, main center pillar, the second secondary center pillar and the second side column, often form a wire casing, each wire casing divides successively between two neighboring magnetic pole
It Wei not the first wire casing, the second wire casing, third wire casing and the 4th wire casing；First winding equipped with the first conductor piece, the second conductor piece and
The end of first non-electrode pin, the first conductor piece and the second conductor piece is respectively equipped with first electrode pin and second electrode is drawn
Foot；Second winding is equipped with third conductor piece, the 4th conductor piece and the second non-electrode pin, third conductor piece and the 4th conductor piece
End is respectively equipped with third electrode pin and the 4th electrode pin；First conductor piece, the second conductor piece, third conductor piece and the 4th
Conductor piece is respectively arranged in the first wire casing, third wire casing, the second wire casing and the 4th wire casing.
As it can be seen that the first conductor piece and the second conductor piece of the first winding in the utility model embodiment and the second winding
Third conductor piece and the 4th conductor piece is interlaced is set in each wire casing of the first magnetic core, so as to make the first winding main
In center pillar and the second secondary center pillar are looped around, the second winding is made to be looped around the first secondary center pillar and main center pillar interior, and main center pillar quilt
First winding and the second winding is common surround, the size of the coefficient of coup of entire two-phase coupling inductor is by the first secondary center pillar and the
The area of second mate's center pillar determines, it is possible to according to actual needs in the first secondary center pillar and the second pair of the design with different in width
Column, and then make two-phase coupling inductor that there is the corresponding coefficient of coup, it also can be by center pillar secondary to first and the second pair
The width of column is adjusted to be adjusted the coefficient of coup.The utility model embodiment need not additionally set secondary magnetic circuit, so as to
The height of two-phase coupling inductor can be reduced, makes two-phase coupling inductor lightening, and then be conducive to power supply and terminal device
Lightening design.
Description of the drawings
It, below will be to the prior art and embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is upper 45 ° of structure diagrams of a kind of two-phase coupling inductor that the utility model embodiment provides；
Fig. 2 is lower 45 ° of structure diagrams of a kind of two-phase coupling inductor that the utility model embodiment provides；
Fig. 3 is the structural representation of the first magnetic core in a kind of two-phase coupling inductor that the utility model embodiment provides
Figure；
Fig. 4 is the structural representation of the first magnetic core in a kind of two-phase coupling inductor that the utility model embodiment provides
Figure；
Fig. 5 is the structural representation of the second magnetic core in a kind of two-phase coupling inductor that the utility model embodiment provides
Figure；
Fig. 6 is the structural representation of the first winding in a kind of two-phase coupling inductor that the utility model embodiment provides
Figure；
Fig. 7 is the structural representation of the second winding in a kind of two-phase coupling inductor that the utility model embodiment provides
Figure；
Fig. 8 is the equivalent circuit schematic of a kind of two-phase coupling inductor that the utility model embodiment provides；
Fig. 9 is that a kind of coupling inductance for two-phase coupling inductor that the utility model embodiment provides tests equivalent circuit original
Reason figure；
Figure 10 is the first winding and the second winding magnetic of a kind of two-phase coupling inductor that the utility model embodiment provides
Illustrate schematic diagram in line of force direction；
Figure 11 is the front-view schematic diagram of a kind of two-phase coupling inductor that the utility model embodiment provides；
Figure 12 is the schematic top plan view of a kind of two-phase coupling inductor that the utility model embodiment provides；
Figure 13 is the schematic side view of a kind of two-phase coupling inductor that the utility model embodiment provides；
Figure 14 is the schematic rear view of a kind of two-phase coupling inductor that the utility model embodiment provides.
Specific embodiment
The utility model embodiment provides a kind of two-phase coupling inductor and power supply, can reduce two-phase coupling inductor
Height, make two-phase coupling inductor lightening, and then be conducive to the lightening design of power supply and terminal device.
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those of ordinary skill in the art's all other embodiments obtained without making creative work, belongs to
The range of the utility model protection.
Fig. 1-Figure 13 is please referred to, the two-phase coupling inductor, applied to power supply, including the first magnetic core 1, the second magnetic core 2,
One winding 3 and the second winding 4, wherein：
First magnetic core 1 is connected with 2 face of the second magnetic core, forms the flux circuit of coupling inductor；With in first magnetic core 1
The side of two magnetic cores 2 connection is equipped with 5 magnetic poles, and each magnetic pole respectively is first the 11, first secondary center pillar 12 of side column, main center pillar
13rd, the second 14 and second side column 15 of secondary center pillar often forms a wire casing between two neighboring magnetic pole, and each wire casing respectively is
First wire casing 101, the second wire casing 102,103 and the 4th wire casing 104 of third wire casing；First winding 3 is equipped with the first conductor piece 31, the
The end of two conductor pieces 32 and the first non-electrode pin 33, the first conductor piece 31 and the second conductor piece 32 is respectively equipped with first electrode
Pin 310 and second electrode pin 320；Second winding 4 is equipped with third conductor piece 41, the 4th conductor piece 42 and second non-electrode draws
Foot 43, the end of 41 and the 4th conductor piece 42 of third conductor piece are respectively equipped with 410 and the 4th electrode pin of third electrode pin
420；First conductor piece 31, the second conductor piece 32,41 and the 4th conductor piece 42 of third conductor piece are respectively arranged at the first wire casing
101st, in third wire casing 103, the second wire casing 102 and the 4th wire casing 104.
It should be noted that as shown in Figures 1 to 7, the first winding 3 and the second winding 4 in the utility model embodiment
It is staggered in each wire casing of the first magnetic core 1, also the first conductor piece 31 is set in the first wire casing 101, by second
Conductor piece 32 is set in third wire casing 103, and third conductor piece 41 is set in the second wire casing 102, by the 4th conductor piece 42
It is set in the 4th wire casing 104, in the secondary center pillar 14 of main center pillar 13 and second is looped around by the first winding 3, the second winding 4 is by first
In secondary center pillar 12 and main center pillar 13 are looped around, main center pillar 13 is surround jointly by the first winding 3 and the second winding 4.First electrode is drawn
Foot 310, second electrode pin 320,410 and the 4th electrode pin 420 of third electrode pin are connected in circuit in the application；The
One non-electrode 33 and second non-electrode pin 43 of pin will be used as non-electrode fixed pin and welding circuit board.Specifically, can be with
Each conductor piece is set in corresponding wire casing by viscose glue, and can also be by viscous between the first magnetic core and the second magnetic core
Glue connection, certainly, specific connection mode are unlimited.
Specifically, the operation principle of the two-phase coupling inductor provided in the utility model embodiment is as follows：
The equivalent circuit schematic of two-phase coupling inductor is as shown in figure 8, setting first electrode pin 310 and the 4th electrode
Pin 420 is Same Name of Ends, and when individually testing the first winding 3 (at this point, the second winding 4 disconnects), the first winding 3 passes through the
It is L1 that one electrode pin 310 and second electrode pin 320, which measure obtained inductance value,.When individually testing the second winding 4
(the first winding 3 disconnects at this time), the electricity that the second winding 4 is obtained by the measurement of 410 and the 4th electrode pin 420 of third electrode pin
Sensibility reciprocal is L2.
The coupling inductance test equivalent circuit schematic of the two-phase coupling inductor is as shown in figure 9, first electrode in parallel is drawn
310 and the 4th electrode pin 420 of foot, the common end after parallel connection is as test point 51；Second electrode pin 320 in parallel and third electricity
Pole pin 410, common end is as test point 52.It is to couple to measure obtained inductance value by test point 51 and test point 52
Inductance value Lm.
According to coupling inductance Computing Principle formula, it is known that Lm=L1+L2-2M (wherein M is the coefficient of coup).As shown in Figure 10
Magnetic line of force schematic diagram it is found that in the first side column 11,13 and second side column 15 of main center pillar, the first winding 3 and the second winding 4 produce
Raw magnetic line of force direction is on the contrary, cancel out each other；In the first secondary secondary center pillar 14 of center pillar 12 and second, the first winding 3 and second around
The magnetic line of force direction that group 4 generates is identical, mutually strengthens.
Therefore, the size of the coefficient of coup M of the two-phase coupling inductor in the application is secondary by the first secondary center pillar 12 and second
The sectional area size of center pillar 14 determines.So in the case where other sizes and mounting condition are constant, separately through adjusting first
The width of the secondary secondary center pillar 14 of center pillar 12 and second, can obtain different coefficient of coup M, and then obtain different coupling inductance amounts
Lm, to meet the needs of different crisscross parallel circuit designs.That is, it can determine first according to actual demand in practical applications
The sectional area size of the secondary secondary center pillar 14 of center pillar 12 and second, so that it is determined that the corresponding coefficient of coup, when secondary center pillar 12 and second is secondary
After the sectional area size of center pillar 14 determines, the coefficient of coup of corresponding two-phase coupling inductor also determines that.So the application
In two-phase coupling inductor without additionally secondary magnetic circuit being set to adjust the coefficient of coup, realize the flattening of two-phase coupling inductor
Design reduces the height of two-phase coupling inductor, is conducive to the lightening of power supply and corresponding product.
In addition, for the larger design of element layout density, due to the top of two-phase coupling inductor of the prior art
Heat dissipation area is smaller, so heat dissipation effect is poor, and the flattening of the two-phase coupling inductor in the utility model embodiment is set
Meter increase top heat dissipation area, so the two-phase coupling inductor in the application compared with the prior art in two-phase coupling electricity
Sensor has better heat dissipation effect.
Further, as shown in Figure 8 and Figure 9, a side of the upper surface of the first magnetic core 1 in the utility model embodiment
Edge is equipped with first step；The both sides of the edge of the bottom of second magnetic core 2 are respectively equipped with second step and third step.
It should be noted that the one side edge of 1 upper surface of the first magnetic core in the utility model embodiment is equipped with First
Rank, lower surface is equipped with 5 magnetic poles, and each conductor piece of each winding is set in each wire casing, and corresponding pin is equal
Outside wire casing, the respective pins of each winding can be facilitated to be clamped to the first step, the bottom of similary second magnetic core 2
Both sides of the edge be respectively equipped with second step and third step, also allow for each winding respective pins clamping and corresponding step
On.When the upper surface of the first magnetic core 1 is set as plane, pin when some pin needs to be connected to the upper surface of the first magnetic core 1
The upper surface of the first magnetic core 1 is will protrude above, it, together should the second magnetic core 2 so as to increase the height of entire two-phase coupling inductor
Lower surface when being set as plane, also will appear the problem of similary, so the first magnetic core 1 in the utility model embodiment is upper
Surface one side edge is equipped with first step；The both sides of the edge of the bottom of second magnetic core 2 are respectively equipped with second step and third step.
It is of course also possible to which two lateral edges of the upper surface of the first magnetic core are set a step respectively, specifically how to set
It should be determined according to actual conditions.In addition, specific width and height for first step, second step and third step are
It can be determined according to the length and thickness of pin each in actual conditions, the utility model embodiment does not make this special limit
It is fixed.
Further, as shown in fig. 6, the first winding 3 is U-shaped, first electrode pin 310 and second electrode pin are equal
320 be hook formation, and be connected on second step；First non-electrode pin 33 is hook formation, and is connected in First
On rank.
Specifically, the first winding 3 in the utility model embodiment is specially U-shaped structure, and first electrode pin 310
It is hook formation with second electrode pin 320, hook portion is U-shaped, is connected on second step, and draw first electrode as possible
The thickness of foot 310 and second electrode pin 320 is equal with the height of second step, makes the thickness and of the first non-electrode pin 33
The height of one step is equal, so as to so that first electrode pin 310 and second electrode pin 320 carry out mutually with second step
It mends, the first non-electrode pin 33 carries out complementation with first step, avoids increasing the height of entire two-phase coupling inductor, such as schemes
Shown in 11-14.
Certainly, first electrode pin 310, equal 320 and first non-electrode pin 33 of second electrode pin be not limited in for
Hook formation, or other concrete structures, concrete structure can be determined according to actual conditions, the utility model
Embodiment does not do this particular determination, can realize the purpose of the utility model embodiment.
Further, as shown in fig. 7, the second winding is U-shaped, 410 and the 4th electrode pin 420 of third electrode pin is
Hook formation, and be connected on second step；Second non-electrode pin 43 is hook formation, and is connected on third step.
Specifically, the second winding 4 in the utility model embodiment is specially U-shaped structure, and third electrode pin 410
It is hook formation with the 4th electrode pin 420, hook portion is U-shaped, is connected on second step, and as possible draw third electrode
Foot 410 and equal with the height of second step with the thickness of the 4th electrode pin 420, make the thickness of the second non-electrode pin 43 with
The height of first step is equal, so as to so that first electrode pin 310 and second electrode pin 320 carry out mutually with second step
It mends, the second non-electrode pin 43 carries out complementation with first step, avoids increasing the height of entire two-phase coupling inductor, such as schemes
Shown in 11-14.
Certainly, third electrode pin 410, the 4th electrode pin equal 420 and the first non-electrode pin 43 be not limited in for
Hook formation, or other concrete structures, concrete structure can be determined according to actual conditions, the utility model
Embodiment does not do this particular determination, can realize the purpose of the utility model embodiment.
Specifically, in order to ensure two-phase coupling inductor has preferable performance, it is preferred in the utility model embodiment
Make the width of the first side column 11 and the second side column 15 equal；The width for making the first secondary secondary center pillar 14 of center pillar 12 and second is equal.
Certainly, the specific width of the secondary center pillar 14 of the secondary center pillar 12 and second of the first side column 11, the second side column 15, first can root
It is determined according to actual conditions, the utility model embodiment does not do this particular determination.
In order to further ensure that two-phase coupling inductor has preferable performance, the utility model embodiment preferably makes
First wire casing 101, the second wire casing 102, the width of 103 and the 4th wire casing 104 of third wire casing are equal.
Certainly, the width of each wire casing can not also be equal, can be specifically determined according to actual conditions, and each
The specific width value of wire casing can also be determined according to actual conditions, and the application does not do this particular determination.
Optionally, the thickness of the first magnetic core 1 is not more than the first predetermined threshold value, and the thickness of the second magnetic core 2 is pre- no more than second
If threshold value.
Optionally, the first predetermined threshold value is 2mm；Second predetermined threshold value is 1mm.
Optionally, the thickness of the first magnetic core 1 in the utility model embodiment is not more than 2mm, and the thickness of the second magnetic core 2 is not
More than 1mm, also, the specific thickness value of the first magnetic core 1 and the second magnetic core 2 can be determined this practicality newly according to actual conditions
Type embodiment is not particularly limited this.In addition, the length of the first magnetic core 1 and the second magnetic core 2 in the application can be no more than
20.5mm, width can be no more than 11.5mm, and certainly, concrete numerical value can be determined the utility model according to actual conditions
Embodiment is not particularly limited this.
Optionally, the first winding 3 and the second winding 4 are the winding for forming tin plating copper sheet punching press bending.
Certainly, it is also not limited to make the first winding 3 and the second winding 4 using tin plating copper sheet, others can also be used
Conductive material makes the first winding 3 and the second winding 4, does not limit specifically.
As it can be seen that the first conductor piece and the second conductor piece of the first winding in the utility model embodiment and the second winding
Third conductor piece and the 4th conductor piece is interlaced is set in each wire casing of the first magnetic core, so as to make the first winding main
In center pillar and the second secondary center pillar are looped around, the second winding is made to be looped around the first secondary center pillar and main center pillar interior, and main center pillar quilt
First winding and the second winding is common surround, the size of the coefficient of coup of entire two-phase coupling inductor is by the first secondary center pillar and the
The area of second mate's center pillar determines, it is possible to according to actual needs in the first secondary center pillar and the second pair of the design with different in width
Column, and then make two-phase coupling inductor that there is the corresponding coefficient of coup, it also can be by center pillar secondary to first and the second pair
The width of column is adjusted to be adjusted the coefficient of coup.The utility model embodiment need not additionally set secondary magnetic circuit, so as to
The height of two-phase coupling inductor can be reduced, makes two-phase coupling inductor lightening, and then be conducive to power supply and terminal device
Lightening design.
On the basis of above-described embodiment, the utility model embodiment additionally provides a kind of power supply, including as described above double
Be coupled inductor.
It should be noted that the utility model embodiment is conducive to the lightening of power supply, and then be conducive to terminal device
Lightening design.
In addition, specific introduce for two-phase coupling inductor involved in the utility model embodiment please refers to
Embodiment is stated, details are not described herein by the application.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that
A little elements, but also including other elements that are not explicitly listed or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except also there are other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide range consistent with features of novelty.
Claims (10)
1. a kind of two-phase coupling inductor, applied to power supply, which is characterized in that including the first magnetic core, the second magnetic core, the first winding
It is wound with second, wherein：
First magnetic core is connected with the second magnetic core face, forms the flux circuit of coupling inductor；First magnetic core
In the side that is connect with second magnetic core be equipped with 5 magnetic poles, each magnetic pole respectively is in the first side column, the first pair
Column, main center pillar, the second secondary center pillar and the second side column, per two neighboring magnetic pole between form a wire casing, each wire casing according to
Secondary is respectively the first wire casing, the second wire casing, third wire casing and the 4th wire casing；First winding is equipped with the first conductor piece, second
The end of conductor piece and the first non-electrode pin, first conductor piece and second conductor piece is respectively equipped with first electrode and draws
Foot and second electrode pin；Second winding is equipped with third conductor piece, the 4th conductor piece and the second non-electrode pin, and described the
The end of three conductor pieces and the 4th conductor piece is respectively equipped with third electrode pin and the 4th electrode pin；First conductor
Piece, second conductor piece, the third conductor piece and the 4th conductor piece be respectively arranged at the first wire casing, third wire casing,
In second wire casing and the 4th wire casing.
2. two-phase coupling inductor according to claim 1, which is characterized in that a side of the first magnetic core upper surface
Edge is equipped with first step；The both sides of the edge of the bottom of second magnetic core are respectively equipped with second step and third step.
3. two-phase coupling inductor according to claim 2, which is characterized in that first winding is U-shaped, and described first
Electrode pin and the second electrode pin are hook formation, and be connected on the second step；First non-electrical
Pole pin is hook formation, and is connected on the first step.
4. two-phase coupling inductor according to claim 3, which is characterized in that second winding is U-shaped, the third
Electrode pin and the 4th electrode pin are hook formation, and be connected on the second step；Described second is non-electrode
Pin is hook formation, and is connected on the third step.
5. two-phase coupling inductor according to any one of claims 1-4, which is characterized in that first side column and institute
The width for stating the second side column is equal；The width of described first secondary center pillar and the second secondary center pillar is equal.
6. two-phase coupling inductor according to claim 5, which is characterized in that first wire casing, second wire casing,
The width of the third wire casing and the 4th wire casing is equal.
7. two-phase coupling inductor according to claim 6, which is characterized in that the thickness of first magnetic core is no more than the
One predetermined threshold value, the thickness of second magnetic core are not more than the second predetermined threshold value.
8. two-phase coupling inductor according to claim 7, which is characterized in that first predetermined threshold value is 2mm；It is described
Second predetermined threshold value is 1mm.
9. two-phase coupling inductor according to claim 8, which is characterized in that first winding and the described second winding
It is the winding for forming tin plating copper sheet punching press bending.
10. a kind of power supply, which is characterized in that including the two-phase coupling inductor as described in claim 1 to 9 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721802824.6U CN207572208U (en) | 2017-12-19 | 2017-12-19 | A kind of two-phase coupling inductor and power supply |
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|---|---|---|---|
| CN201721802824.6U CN207572208U (en) | 2017-12-19 | 2017-12-19 | A kind of two-phase coupling inductor and power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946046A (en) * | 2017-12-19 | 2018-04-20 | 东莞铭普光磁股份有限公司 | A kind of two-phase coupling inductor and power supply |
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2017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946046A (en) * | 2017-12-19 | 2018-04-20 | 东莞铭普光磁股份有限公司 | A kind of two-phase coupling inductor and power supply |
| CN107946046B (en) * | 2017-12-19 | 2024-03-29 | 东莞铭普光磁股份有限公司 | Dual-phase coupling inductor and power supply |
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