CN106469602A - A kind of magneticss, switching device and electrical equipment - Google Patents
A kind of magneticss, switching device and electrical equipment Download PDFInfo
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- CN106469602A CN106469602A CN201510515610.XA CN201510515610A CN106469602A CN 106469602 A CN106469602 A CN 106469602A CN 201510515610 A CN201510515610 A CN 201510515610A CN 106469602 A CN106469602 A CN 106469602A
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Abstract
The invention discloses a kind of magneticss, switching device and electrical equipment, to realize the small size of magneticss, high efficiency, low interference.Described magneticss include upper magnet yoke, lower yoke, and at least two main magnetic cores of the described upper magnet yoke of connection and lower yoke and at least one secondary magnetic core.The magneticss that the present invention provides, provide larger inductance by way of increasing secondary magnetic core it is achieved that inductance integrated it is achieved that reach the design of preferably technical performance with less space；And the secondary magnetic core due to increasing provides path for leakage field, it is possible to reduce be leaked to the magnetic flux of in the air, thus reducing the interference that leakage field causes.
Description
Technical field
The present invention relates to technical field of electric equipment, more particularly to a kind of magneticss, switching device and electricity
Gas equipment.
Background technology
With the demand for development of high power density, high-efficiency power, multistate switch technology is by extensive concern.As
Shown in Fig. 1 a, in original design of multistate switch, multichannel inductance crisscross parallel；As shown in Figure 1 b,
In improvement project afterwards, carry out multichannel in alternate figures 1a and hand over using a coupling inductance and an outputting inductance
Wrong inductance in parallel.Multistate switch adopts the technical scheme shown in Fig. 1 b, and in coupling inductance, common mode component is in ferrum
The magnetic flux producing on core cancels each other, and iron loss is mainly caused by differential-mode component, such that it is able to using low-loss material
The magnetic core of matter；It is mainly fundamental current due to flowing through outputting inductance, and high-frequency current component very little, therefore defeated
Going out inductance can be from the material that biasing ability is preferable, Frequency Power Loss is relatively low.
Using the design of Fig. 1 b, due to employing two independent magneticss, the ratio that takes up room is larger,
The loss producing on winding is also than larger.
Content of the invention
The invention provides a kind of magneticss, switching device and electrical equipment, to realize the little of magneticss
Volume, high efficiency, low interference.
The magneticss that the embodiment of the present invention is provided, including upper magnet yoke, lower yoke, and connect on described
At least two main magnetic cores of yoke and lower yoke and at least one secondary magnetic core.
Optionally, the selectable type of described main magnetic core includes ferrite main magnetic core, amorphous main magnetic core and nanometer
Brilliant main magnetic core；The selectable type of described yoke includes ferrite yoke, amorphous yoke and nanocrystalline yoke；
The described pair selectable type of magnetic core includes powder core pair magnetic core, stalloy pair magnetic core and ferrite pair magnetic core.
Preferably, described main magnetic core is ferrite main magnetic core, and described yoke is ferrite yoke, described pair magnetic
Core is powder core pair magnetic core.
Preferably, described at least two main magnetic cores are located between described upper magnet yoke and lower yoke；Optionally, institute
State at least one secondary magnetic core to be located between described upper magnet yoke and lower yoke, or at least one secondary magnetic core position described
Side in described upper magnet yoke and lower yoke.
Preferably, described main magnetic core be column main magnetic core, optionally, optional cross sectional shape include circle,
Oval, square and track shape.
Optionally, the described pair selectable type of magnetic core includes tabular pair magnetic core and column pair magnetic core, described post
The optional cross sectional shape of shape pair magnetic core includes circle, ellipse, square and track shape.
Optionally, each described main magnetic core is wound with winding section and lower winding section, described at least two main magnetic cores
According to setting sequential arrangement, the upper winding section of a upper tagmeme main magnetic core and the lower winding section of next tagmeme main magnetic core
Magnetic flux superposition when electric current flow into end and connect, the upper winding section of last tagmeme main magnetic core and first tagmeme main magnetic core
Electric current during the magnetic flux superposition of lower winding section flows into end and connects；
Or, each described main magnetic core is wound with interior winding section and outer winding section, and described at least two main magnetic cores are pressed
According to setting sequential arrangement, the interior winding section of a upper tagmeme main magnetic core and the outer winding section of next tagmeme main magnetic core
Electric current during magnetic flux superposition flows into end and connects, and the interior winding section of last tagmeme main magnetic core is outer with first tagmeme main magnetic core
Electric current during the magnetic flux superposition of winding section flows into end and connects.
Magneticss provided in an embodiment of the present invention, provide larger inductance by way of increasing secondary magnetic core,
Achieve the integrated of inductance, preferably design such that it is able to realize reaching technical performance in less space；And
And the secondary magnetic core due to increasing provides path for leakage field, it is possible to reduce be leaked to the magnetic flux of in the air, thus
Reduce the interference that leakage field causes.Therefore, compared to existing technology, magneticss provided in an embodiment of the present invention
The small size of magneticss, high efficiency, low interference can be realized.
Embodiments provide a kind of switching device, this switching device includes aforementioned arbitrary technical scheme institute
The magneticss stated.
Switching device provided in an embodiment of the present invention adopts the magneticss in previous embodiment, compares existing skill
Art, switching device provided in an embodiment of the present invention correspondingly has magneticss small size, high efficiency, low dry
The technical characterstic disturbed.
The embodiment of the present invention additionally provides a kind of electrical equipment, and this electrical equipment includes aforesaid switchgear.
Electrical equipment provided in an embodiment of the present invention adopts the switching device in previous embodiment, also correspondingly has
Be magnetic element small size, high efficiency, the technical characterstic of low interference.
Brief description
Fig. 1 a is the electrical block diagram in a kind of existing switching device；
Fig. 1 b is the electrical block diagram in existing another kind switching device；
Fig. 2 a is the schematic perspective view of the core structure of magneticss in first embodiment of the invention；
Fig. 2 b is the side view of core structure shown in Fig. 2 a；
Fig. 3 is the core structure schematic diagram of magneticss in second embodiment of the invention；
Fig. 4 is the core structure schematic diagram of magneticss in third embodiment of the invention；
Fig. 5 is the core structure schematic diagram of magneticss in fourth embodiment of the invention；
Fig. 6 is the core structure schematic diagram of magneticss in fifth embodiment of the invention；
Fig. 7 is the core structure schematic diagram of magneticss in sixth embodiment of the invention；
Fig. 8 is the core structure schematic diagram of magneticss in seventh embodiment of the invention；
Fig. 9 is the core structure schematic diagram of magneticss in eighth embodiment of the invention；
Figure 10 a is the schematic perspective view of the core structure of magneticss in ninth embodiment of the invention；
Figure 10 b is the top view of core structure shown in Figure 10 a；
Figure 11 is the core structure schematic diagram of magneticss in tenth embodiment of the invention；
Figure 12 is the core structure schematic diagram of magneticss in eleventh embodiment of the invention；
Figure 13 is the core structure schematic diagram of magneticss in twelveth embodiment of the invention；
Figure 14 a is the core structure schematic diagram of magneticss in thriteenth embodiment of the invention；
Figure 14 b is the core structure schematic diagram of magneticss in fourteenth embodiment of the invention；
Figure 15 a is the core structure schematic diagram of magneticss in fifteenth embodiment of the invention；
Figure 15 b is the core structure schematic diagram of magneticss in sixteenth embodiment of the invention；
Figure 16 a is staggered coiling winding construction schematic diagram in the embodiment of the present invention；
Figure 16 b is the electrical connection diagram of the staggered coiling winding construction in Figure 16 a；
Figure 17 a is independent coiling winding construction schematic diagram in the embodiment of the present invention；
Figure 17 b is the electrical connection diagram of the independent coiling winding construction in Figure 17 a.
Reference：
1- main magnetic core；
2- yoke；
3- pair magnetic core；
Winding section on 4-A post；
Winding section on 5-B post；
Winding section on 6-C post；
Winding section under 7-A post；
Winding section under 8-B post；
Winding section under 9-C post.
Specific embodiment
In order to realize the small size of magneticss, high efficiency, low interference, embodiments provide one kind
Magneticss, switching device and electrical equipment.In embodiment of the present invention technical scheme, magneticss include
Upper magnet yoke, lower yoke, and at least two main magnetic cores of connection upper magnet yoke and lower yoke and at least one secondary magnetic
Core.Apply magneticss provided in an embodiment of the present invention, provided larger by way of increasing secondary magnetic core
Inductance it is achieved that inductance integrated, it is possible to achieve reach the optimum design of technical performance in minimum space；
And the secondary magnetic core due to increasing provides path for leakage field, it is possible to reduce be leaked to the magnetic flux of in the air, from
And reduce the interference that leakage field causes.For making the object, technical solutions and advantages of the present invention clearer, with
Lower for embodiment, the present invention is described in further detail.
As shown in Figure 2 a, a kind of magneticss provided in an embodiment of the present invention, including upper magnet yoke and lower yoke,
I.e. yoke 2 in Fig. 2 a, and connect three main magnetic cores 1 of upper magnet yoke and lower yoke and a secondary magnetic core 3.
In fig. 2 a, main magnetic core quantity is three, and secondary magnetic core quantity is one, but in actual applications simultaneously
It is not limited to this, if multistate switch is tri-state switch, magneticss include two main magnetic cores, if many
State switchs as N (N>=3) state switch, then magneticss include N-1 main magnetic core.Secondary stem stem quantity does not limit,
Main according to magneticss space structure need arrange.
In embodiments of the present invention, main magnetic core can be ferrite main magnetic core, amorphous main magnetic core or nanocrystalline master
Magnetic core；Yoke can be ferrite yoke, amorphous yoke or nanocrystalline yoke；Secondary magnetic core can be powder core pair
Magnetic core, stalloy pair magnetic core or ferrite pair magnetic core.
Main magnetic core, upper magnet yoke and lower yoke are high magnetic permeability, low-loss magnetic material, using the magnetic of high magnetic permeability
Material can improve the coefficient of coup between winding, and secondary magnetic core provides path for the leakage field of main magnetic core, and selection is work
Frequency is lost magnetic material low, that saturation magnetic induction is high, so can provide larger outputting inductance, in less section
The larger electric current of long-pending opposing, realizes less volume, reduces the interference of leakage field.
In a preferred embodiment of the invention, main magnetic core is ferrite main magnetic core, and yoke is ferrite magnetic
Yoke, secondary magnetic core is powder core pair magnetic core.When switching frequency is for more than 10KHz, main magnetic core selects ferrite material
Material loss is relatively low.When switching frequency for 10KHz and less than 10KHz when, main magnetic core and yoke material preferably non-
Brilliant, nanocrystalline material.
Main magnetic core, secondary magnetic core must form magnetic loop by yoke, realize larger common mode inductance amount, main
Magnetic core pair magnetic core conjugation can be with material-saving.In an embodiment of the present invention, main magnetic core be located at upper magnet yoke and
Between lower yoke, secondary magnetic core be located between upper magnet yoke and lower yoke or upper magnet yoke and lower yoke side.As
Shown in Fig. 3, three main magnetic cores 1 are located between upper magnet yoke and lower yoke；Three secondary magnetic cores 3 are located at upper magnet yoke
Side with lower yoke.As shown in figure 12, three main magnetic cores 1 are located between upper magnet yoke and lower yoke；Two
Secondary magnetic core is located between upper magnet yoke and lower yoke.
As shown in figure 3, in one embodiment of the invention, main magnetic core 1 is column main magnetic core, section shape
Shape is square, but practical situation is not limited thereto, the cross sectional shape of column main magnetic core can for circular,
The various shapes such as oval or track shape, wherein, square can carry chamfering, track shape said herein refers to
It is that two opposite side are parallel and by the shape of circular sliding slopes.
In embodiments of the present invention, secondary magnetic core can be tabular or column, and secondary Magnetic Core Design is column and plate
Shape structure depends primarily on the complexity of inductance processing technology.As shown in figure 8, secondary magnetic core 3 is column pair magnetic
Core, as shown in figure 9, secondary magnetic core 3 is tabular pair magnetic core.In fig. 8, the cross sectional shape of secondary magnetic core 3 is
Square, but practical situation is not limited to this, and the cross sectional shape of column pair magnetic core can also be circular, oval
Or the various shapes such as track shape, wherein, square chamfering can be carried.
As shown in Figure 2 a and 2 b, the core structure of the magneticss in first embodiment of the invention includes three
Individual column main magnetic core 1, upper and lower two yokes 2 and a secondary magnetic core 3.Three main magnetic cores 1 are located at up and down
Between two yokes, secondary magnetic core 3 is located at the side of upper magnet yoke and lower yoke, with the centre in three main magnetic cores
Main magnetic core position is corresponding.
As shown in figure 3, the core structure of the magneticss in second embodiment of the invention includes three column masters
Magnetic core 1, upper and lower two yokes 2 and three secondary magnetic cores 3.Wherein three main magnetic cores 1 are located at upper and lower two magnetic
Between yoke, 3 secondary magnetic cores 3 are located at the side of upper magnet yoke and lower yoke, corresponding with three main magnetic core positions.
As shown in figure 4, the core structure of the magneticss in third embodiment of the invention includes three column masters
Magnetic core 1, upper and lower two yokes 2 and two secondary magnetic cores 3.Wherein three main magnetic cores 1 are located at upper and lower two magnetic
Between yoke, two secondary magnetic cores 3 are located at the side of upper magnet yoke and lower yoke, with the both sides in three main magnetic cores
Two main magnetic core positions are corresponding.
As shown in figure 5, the core structure of the magneticss in fourth embodiment of the invention includes three column masters
Magnetic core 1, upper and lower two yokes 2 and a secondary magnetic core 3.In this inventive embodiments, secondary magnetic core 3 is plate
Shape structure, wherein three main magnetic cores 1 are located between upper and lower two yokes, secondary magnetic core 3 be located at upper magnet yoke and under
The side of yoke.
As shown in fig. 6, the core structure of the magneticss in fifth embodiment of the invention includes three column masters
Magnetic core 1, upper and lower two yokes 2 and two secondary magnetic cores 3.Wherein three main magnetic cores 1 are located at upper and lower two magnetic
Between yoke, two secondary magnetic cores 3 are located at the side of upper magnet yoke and lower yoke, with the middle master in three main magnetic cores
Magnetic core position is corresponding, and is divided into yoke both sides.
As shown in fig. 7, the core structure of the magneticss in sixth embodiment of the invention includes three column masters
Magnetic core 1, upper and lower two yokes 2 and six secondary magnetic cores 3.Wherein three main magnetic cores 1 are located at upper and lower two magnetic
Between yoke, six secondary magnetic cores 3 are located at the side of upper magnet yoke and lower yoke, corresponding with three main magnetic core positions,
And it is divided into yoke both sides.
As shown in figure 8, the core structure of the magneticss in seventh embodiment of the invention includes three column masters
Magnetic core 1, upper and lower two yokes 2 and four secondary magnetic cores 3.Wherein three main magnetic cores 1 are located at upper and lower two magnetic
Between yoke, four secondary magnetic cores 3 are located at the side of upper magnet yoke and lower yoke, with the both sides in three main magnetic cores
Two main magnetic core positions are corresponding, and are divided into yoke both sides.
As shown in figure 9, the core structure of the magneticss in eighth embodiment of the invention includes three column masters
Magnetic core 1, upper and lower two yokes 2 and two secondary magnetic cores 3.Wherein three main magnetic cores 1 are located at upper and lower two magnetic
Between yoke, two secondary magnetic cores 3 are located at the side of upper magnet yoke and lower yoke, and are located at yoke both sides respectively.
As as-shown-in figures 10 a and 10b, the core structure of the magneticss in ninth embodiment of the invention includes
Three column main magnetic cores 1, upper and lower two yokes 2 and a secondary magnetic core 3.Wherein yoke section is circle,
Three main magnetic cores 1 are located between upper and lower two yokes, are distributed in yoke edge, and secondary magnetic core 3 is located in yoke
Between two yokes up and down at the heart.
As shown in figure 11, the core structure of the magneticss in tenth embodiment of the invention includes three column masters
Magnetic core 1, upper and lower two yokes 2 and two secondary magnetic cores 3.Wherein three main magnetic cores 1 are located at upper and lower two magnetic
Between yoke, two secondary magnetic cores 3 are located at the side of upper magnet yoke and lower yoke, and are located at three main stem stems respectively
Both sides.
As shown in figure 12, the core structure of the magneticss in eleventh embodiment of the invention includes three columns
Main magnetic core 1, upper and lower two yokes 2 and two secondary magnetic cores 3.Wherein three main magnetic cores 1 are located at upper and lower two
Between yoke, two secondary magnetic cores 3 are located between upper and lower two yokes, and are located at three main stem stems respectively
Both sides.
As shown in figure 13, the core structure of the magneticss in twelveth embodiment of the invention includes three columns
Main magnetic core 1, upper and lower two yokes 2 and two secondary magnetic cores 3.Wherein three main magnetic cores 1 are located at upper and lower two
Between yoke, two secondary magnetic cores 3 are located between upper and lower two yokes, with three main magnetic core interval settings one by one.
As shown in figures 14a, the core structure of the magneticss in thriteenth embodiment of the invention includes three posts
Shape main magnetic core 1, upper and lower two yokes 2 and a secondary magnetic core 3.Wherein three main magnetic cores 1 are located at upper and lower two
Between individual yoke, a secondary magnetic core 3 is located at the side of upper magnet yoke and lower yoke, and is located at three main magnetic cores
Side.In Figure 14 b, the core structure of the magneticss of fourteenth embodiment of the invention and the 13rd is in fact
The core structure applying the magneticss of example is close, and its difference is the opposite side that secondary magnetic core is located at three main magnetic cores.
As shown in fig. 15 a, the core structure of the magneticss in fifteenth embodiment of the invention includes three posts
Shape main magnetic core 1, upper and lower two yokes 2 and a secondary magnetic core 3.Wherein three main magnetic cores 1 are located at upper and lower two
Between individual yoke, a secondary magnetic core 3 is located between upper and lower two yokes, and is located at the one of three main magnetic cores
Side.In Figure 15 b, the core structure of the magneticss of sixteenth embodiment of the invention and the 15th embodiment
Magneticss core structure close, its difference be secondary magnetic core be located at three main magnetic cores opposite side.
As illustrated in fig 16 a for the many magnetic cores in the embodiment of the present invention interlock winding method, as illustrated in fig 17 a
Winding method is the independent winding method of each magnetic core, and the electrical connection diagram of two kinds of winding modes is respectively as Figure 16 b
With shown in 17b.
As illustrated in fig 16 a, 3 main magnetic cores are all wound with winding section and lower winding section, wherein winding section on A post
Under 4 and B posts, the Same Name of Ends of winding section 8 connects, the magnetic flux of winding section 9 under winding section 5 and C post on B post
Electric current during superposition flows into end and connects, under winding section 6 and A post on C post during the magnetic flux superposition of winding section 7
Electric current flows into end and connects.
In Figure 16 a, each main magnetic core is wound with upper and lower two winding sections, in a practical situation it is also possible to every
Individual main magnetic core is wound with inside and outside two winding sections, and in staggered winding method inside and outside many magnetic cores, inside and outside winding section is staggered
Connected mode is cross-linked mode with what aforementioned many magnetic cores interlocked in winding method upper and lower winding section up and down.
Set up the threedimensional model under independent coiling and staggered winding method, be often mutually passed through frequency 50Hz, peak value electricity
The sinusoidal current of stream 93A, emulates to it, simulation result is as shown in table 1.
The different winding method simulation result of table 1
Adopt the magnetic on the major and minor magnetic core of independent coiling close than on staggered coiling major-minor iron core as can be seen from Table 1
Magnetic close much larger, the coupling coefficient ratio on the major and minor iron core of independent coiling interlocks on the major and minor iron core of coiling
The coefficient of coup is little, so the leakage inductance of independent coiling is bigger than the leakage inductance of staggered coiling.Needing to ensure higher coupling
In the case of syzygy number and certain leakage inductance, staggered coiling is easier to meet requirement than the mode of independent coiling.
In Figure 16 a, many magnetic cores in the embodiment of the present invention interlock in winding method, on each main magnetic core around
There are two winding sections, in a practical situation, winding section quantity can be three or more.
Embodiments provide a kind of switching device, this switching device is included in aforementioned any embodiment
Magneticss.
Switching device provided in an embodiment of the present invention adopts the magneticss in previous embodiment, compares existing skill
Art, switching device provided in an embodiment of the present invention correspondingly has magneticss small size, high efficiency, low dry
The technical characterstic disturbed.
The embodiment of the present invention additionally provides a kind of electrical equipment, and this electrical equipment includes aforesaid switchgear.
Electrical equipment provided in an embodiment of the present invention adopts the switching device in previous embodiment, also correspondingly has
Be magnetic element small size, high efficiency, the technical characterstic of low interference.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these modification and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these changes and modification.
Claims (9)
1. a kind of magneticss it is characterised in that include upper magnet yoke, lower yoke, and connect described upper magnetic
At least two main magnetic cores of yoke and lower yoke and at least one secondary magnetic core.
2. as claimed in claim 1 a kind of magneticss it is characterised in that described main magnetic core is selectable
Type includes ferrite main magnetic core, amorphous main magnetic core and nanocrystalline main magnetic core；The selectable type of described yoke
Including ferrite yoke, amorphous yoke and nanocrystalline yoke；The described pair selectable type of magnetic core includes powder core
Secondary magnetic core, stalloy pair magnetic core and ferrite pair magnetic core.
3. as claimed in claim 2 a kind of magneticss it is characterised in that described main magnetic core be ferrite
Main magnetic core, described yoke is ferrite yoke, and described pair magnetic core is powder core pair magnetic core.
4. as claimed in claim 1 a kind of magneticss it is characterised in that described at least two main magnetic cores
Positioned between described upper magnet yoke and lower yoke；At least one secondary magnetic core described is located at described upper magnet yoke and lower yoke
Between, or at least one secondary magnetic core described is positioned at the side of described upper magnet yoke and lower yoke.
5. as claimed in claim 1 a kind of magneticss it is characterised in that described main magnetic core be column master
Magnetic core, optional cross sectional shape includes circle, ellipse, square and track shape.
6. as claimed in claim 1 a kind of magneticss it is characterised in that described pair magnetic core selectable
Type includes tabular pair magnetic core and column pair magnetic core, and the optional cross sectional shape of described column pair magnetic core includes justifying
Shape, ellipse, square and track shape.
7. the magneticss as described in any one of claim 1～6 are it is characterised in that main magnetic core as described in each
It is wound with winding section and lower winding section, described at least two main magnetic cores are according to setting sequential arrangement, a upper tagmeme
Electric current during the magnetic flux superposition of the upper winding section of main magnetic core and the lower winding section of next tagmeme main magnetic core flows into end even
Connect, the electric current during magnetic flux superposition of lower winding section of the upper winding section of last tagmeme main magnetic core and first tagmeme main magnetic core
Flow into end to connect；
Or, each described main magnetic core is wound with interior winding section and outer winding section, and described at least two main magnetic cores are pressed
According to setting sequential arrangement, the interior winding section of a upper tagmeme main magnetic core and the outer winding section of next tagmeme main magnetic core
Electric current during magnetic flux superposition flows into end and connects, and the interior winding section of last tagmeme main magnetic core is outer with first tagmeme main magnetic core
Electric current during the magnetic flux superposition of winding section flows into end and connects.
8. a kind of switching device is it is characterised in that include the magnetic unit as described in any one of claim 1～7
Part.
9. a kind of electrical equipment is it is characterised in that include switching device as claimed in claim 8.
Priority Applications (1)
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| CN201510515610.XA CN106469602A (en) | 2015-08-20 | 2015-08-20 | A kind of magneticss, switching device and electrical equipment |
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| CN201510515610.XA CN106469602A (en) | 2015-08-20 | 2015-08-20 | A kind of magneticss, switching device and electrical equipment |
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| CN111192746A (en) * | 2018-11-14 | 2020-05-22 | 沃尔缇夫能源系统公司 | Transformer |
| KR20200100127A (en) * | 2017-12-20 | 2020-08-25 | 로베르트 보쉬 게엠베하 | Transformer core and transformer |
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| KR20200100127A (en) * | 2017-12-20 | 2020-08-25 | 로베르트 보쉬 게엠베하 | Transformer core and transformer |
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