CN101399114A - Multiple magnetic circuit transformer - Google Patents
Multiple magnetic circuit transformer Download PDFInfo
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- CN101399114A CN101399114A CNA2007101236295A CN200710123629A CN101399114A CN 101399114 A CN101399114 A CN 101399114A CN A2007101236295 A CNA2007101236295 A CN A2007101236295A CN 200710123629 A CN200710123629 A CN 200710123629A CN 101399114 A CN101399114 A CN 101399114A
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Abstract
The embodiment of the invention discloses a transformer with multi-magnetic circuits which comprises a plurality of magnetic circuits which comprise a plurality of magnetic cores and multi-groups of winding groups which are winded on the magnetic circuits. At least one magnetic circuit is arranged between two adjacent groups of winding groups. Through the winding groups winded on the magnetic circuits of the transformer, the decoupling of the winding groups is implemented by the interval of at least one magnetic circuit or the compensation of the winding groups. Thus, every group of the winding groups can compose an independent transformer. And one multi-magnetic circuit transformer of the embodiment can be divided into a plurality of independent transformers. The input and the output of the independent transformers are separated completely. Thus, the multi-magnetic circuit transformer can simultaneously receives a plurality of input signals with different frequencies or phases or amplitudes and simultaneously outputs a plurality of output signals with corresponding frequencies or phases or amplitudes. And the input and output signals are completely separated.
Description
Technical field
The present invention relates to field transformer, relate in particular to a kind of multiple magnetic circuit transformer.
Background technology
Transformer is a kind of electromagnetic induction principle that utilizes, and transmits the electric elements of electric energy or transmission signals to another circuit from a circuit.Transformer can be transformed to a kind of AC energy of voltage the AC energy of the another kind of voltage of same frequency.Transformer is made up of magnetic core and the winding that is centered around on the described magnetic core, traditional transformer is to be wound with two coil windings of primary and secondary on a single magnetic circuit, on logical on the primary coil winding during alternating current of certain frequency, inductive coupling goes out the alternating voltage with the primary coil same frequency on the secondary winding coil.In order to satisfy change in voltage, need on single magnetic core, center on the lattice coil winding, facts have proved, this traditional transformer device structure complexity, heat radiation difficulty, loss is big.Given this, the multiple magnetic circuit transformer technology occurred, multiple magnetic circuit transformer is made up of multipath magnetic circuit that includes a plurality of magnetic cores and the winding that is wrapped in successively on described a plurality of magnetic circuit.After adopting multipath magnetic circuit, a plurality of coils of transformer disperse to be centered around on a plurality of magnetic cores, the heat generating spot of multiple magnetic circuit transformer is dispersed on a plurality of magnetic circuits, has improved the heat dispersion of single magnetic circuit transformer greatly, and adopt the multipath magnetic circuit technology to improve the power output of transformer.But the range transformer of prior art (comprising multiple magnetic circuit transformer) can only have an input signal, can not satisfy and import a plurality of unlike signals simultaneously, and produces the market demand of a plurality of different output signals simultaneously.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of multiple magnetic circuit transformer is provided.This transformer has realized receiving simultaneously the input signal of a plurality of different frequencies or phase place or amplitude, and exports the output signal of a plurality of corresponding frequencies or phase place or amplitude simultaneously, and each organizes the effect of isolating fully between input, output signal.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of multiple magnetic circuit transformer, and this multiple magnetic circuit transformer comprises:
A plurality of magnetic circuits that a plurality of magnetic cores form;
And be wound on many groups winding on described a plurality of magnetic circuit;
Every at least one magnetic circuit of two adjacent groups winding interbody spacer of described many group windings.
Accordingly, the embodiment of the invention provides another kind of multiple magnetic circuit transformer, and this multiple magnetic circuit transformer comprises:
A plurality of magnetic circuits that a plurality of magnetic cores form;
And be wound on many groups winding on described a plurality of magnetic circuit;
Described many group windings comprise first winding and at least one group second winding;
Described first winding continuously successively or intert and be wound on the single magnetic circuit of described a plurality of magnetic circuits;
When described second winding is many groups, every two adjacent groups second at least one magnetic circuit of winding interbody spacer;
Described second winding is wound on the even number magnetic circuit of described a plurality of magnetic circuits simultaneously, and described even number magnetic circuit comprises the magnetic circuit that the side column of described a plurality of magnetic cores forms, be in series with the compensation winding on any one group in described second winding and described first winding, described compensation winding is used for described first winding and described second winding are carried out decoupling zero;
Perhaps, described second winding is wound on the even number magnetic circuit of described a plurality of magnetic circuits simultaneously, and described even number magnetic circuit does not comprise the magnetic circuit that the side column of described a plurality of magnetic cores forms;
Perhaps, described second winding is wound on the odd number magnetic circuit of described a plurality of magnetic circuits simultaneously, be in series with the compensation winding on any one group in described second winding and described first winding, described compensation winding is used for described first winding and described second winding are carried out decoupling zero;
When described second winding is many groups, every two adjacent groups second at least one magnetic circuit of winding interbody spacer.
The embodiment of the invention is organized winding by coiling on a plurality of magnetic circuits of transformer more, carry out decoupling zero by at least one magnetic circuit of interval or by the compensation winding between described many group windings, make every group of winding of described many group windings can constitute independently transformer, present embodiment multiple magnetic circuit transformer can be divided into a plurality of independently transformers like this, the input and output of described a plurality of independently transformer baies are isolated fully, realized that a described multiple magnetic circuit transformer receives the input signal of a plurality of different frequencies simultaneously, and export the output signal of a plurality of corresponding frequencies and each group input simultaneously, the effect of isolating fully between output signal.
Description of drawings
Fig. 1 is that the structure of an embodiment of multiple magnetic circuit transformer of the present invention is formed schematic diagram;
Fig. 2 is that the structure of another embodiment of multiple magnetic circuit transformer of the present invention is formed schematic diagram;
Fig. 3 is that the structure of another embodiment of multiple magnetic circuit transformer of the present invention is formed schematic diagram;
Fig. 4 is that the structure of another embodiment of multiple magnetic circuit transformer of the present invention is formed schematic diagram;
Fig. 5 is that the structure of another embodiment of multiple magnetic circuit transformer of the present invention is formed schematic diagram;
Fig. 6 is that the structure of another embodiment of multiple magnetic circuit transformer of the present invention is formed schematic diagram;
Fig. 7 is that the structure of another embodiment of multiple magnetic circuit transformer of the present invention is formed schematic diagram;
Fig. 8 is that the structure of another embodiment of multiple magnetic circuit transformer of the present invention is formed schematic diagram;
Fig. 9 is that the structure of another embodiment of multiple magnetic circuit transformer of the present invention is formed schematic diagram.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
The embodiment of the invention is organized winding by coiling on a plurality of magnetic circuits of transformer more, carry out decoupling zero by at least one magnetic circuit of interval or by the compensation winding between described many group windings, make every group of winding of described many group windings can constitute independently transformer, present embodiment multiple magnetic circuit transformer can be divided into a plurality of independently transformers like this, the input and output of described a plurality of independently transformer baies are isolated fully, realized that a described multiple magnetic circuit transformer receives the input signal of a plurality of different frequencies simultaneously, and export the output signal of a plurality of corresponding frequencies and each group input simultaneously, the effect of isolating fully between output signal.
Fig. 1 is that the structure of an embodiment of multiple magnetic circuit transformer of the present invention is formed schematic diagram.As shown in Figure 1, the multiple magnetic circuit transformer of present embodiment comprises 7 magnetic circuits (magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4, magnetic circuit 5, magnetic circuit 6 and magnetic circuit 7) that 7 magnetic cores form; And be wound on three groups of winding L 1, L2 and L3 on described 7 magnetic circuits, (L1 and L2 between every adjacent two windings of described three windings, L2 and L3) (L1 and L2 be magnetic circuit 3 at interval for the magnetic circuit in difference interval, L2 and L3 be magnetic circuit 5 at interval), in the specific implementation, can the more than one magnetic circuit in interval between described per two groups of windings.Further, winding L 1 comprises elementary winding L 11 and secondary winding L12, and L11 and L12 is wound on magnetic circuit 1 simultaneously and above the magnetic circuit 2, and every circle winding of L11 and L12 is the double magnetic circuit winding; Winding L 2 comprises elementary winding L 21 and secondary winding L22, and L21 and L22 be wound on above the magnetic circuit 4 simultaneously, and every circle winding of L21 and L22 is single magnetic circuit winding; Winding L 3 comprises elementary winding L 31 and secondary winding L32, and L31 and L32 is wound on magnetic circuit 6 simultaneously and above the magnetic circuit 7, and every circle winding of L31 and L32 is the double magnetic circuit winding.In the specific implementation, winding L 1, L2 and L3 can include only an elementary winding, also can comprise an elementary winding and at least one secondary winding.In the equivalent winding that winding L 1, L2 and L3 can make for coil windings, planar conductor winding or printed circuit board (PCB) any one, the perhaps combination of described each winding.Wherein, described coil windings is wrapped on the magnetic core on vertical magnetic circuit direction by lead, and lead can be single, perhaps many coilings side by side, and the material of employing can be various conductor wires such as copper, aluminium, also can adopt various conductive foil band coilings such as Copper Foil, aluminium foil; Described planar conductor winding forms by the thin type conductor material is folding; When the equivalent winding that adopts printed circuit board (PCB) to make, the printed circuit board (PCB) that is used for making equivalent winding can be one or more layers.In addition, the magnetic core of present embodiment can be the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
In the present embodiment, because winding L 1, L2 and 3 two two difference of winding L are a magnetic circuit at interval, therefore can there be mutual inductance between L1, L2 and L3, L1, L2 and L3 can independently form three transformers, the multiple magnetic circuit transformer of present embodiment can realize importing simultaneously the input signal of three kinds of different frequencies or phase place or amplitude like this, and export three kinds of corresponding output signal simultaneously, and each organizes the effect of isolating fully between input, output signal.
Fig. 2 is that the structure of another embodiment of multiple magnetic circuit transformer of the present invention is formed schematic diagram.As shown in Figure 2, the multiple magnetic circuit transformer of present embodiment comprises 5 magnetic circuits (magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and magnetic circuit 5) that 5 magnetic cores form; And be wound on three groups of winding L 1, L2 and L3 on described 5 magnetic circuits, wherein winding L 1 continuously successively or intert and be wound on magnetic circuit 1, magnetic circuit 2, magnetic circuit 4 and the magnetic circuit 5 of described 5 magnetic circuits, every circle winding of winding L 1 is single magnetic circuit winding; Winding L 2 is wound on magnetic circuit 1 and the magnetic circuit 2 simultaneously, and every circle winding of winding L 2 is the double magnetic circuit winding; Winding L 3 is wound on magnetic circuit 4 and the magnetic circuit 5 simultaneously, and every circle winding of winding L 3 is the double magnetic circuit winding.In the specific implementation, winding L 1, L2 and L3 can include only an elementary winding, also can comprise an elementary winding and at least one secondary winding.In the equivalent winding that winding L 1, L2 and L3 can make for coil windings, planar conductor winding or printed circuit board (PCB) any one, the perhaps combination of described each winding.Wherein, described coil windings is wrapped on the magnetic core on vertical magnetic circuit direction by lead, and lead can be single, perhaps many coilings side by side, and the material of employing can be various conductor wires such as copper, aluminium, also can adopt various conductive foil band coilings such as Copper Foil, aluminium foil; Described planar conductor winding forms by the thin type conductor material is folding; When the equivalent winding that adopts printed circuit board (PCB) to make, the printed circuit board (PCB) that is used for making equivalent winding can be one or more layers.In addition, the magnetic core of present embodiment can be the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
In the present embodiment, because winding L 1 does not have the coiling winding on magnetic circuit 3, make between winding L 1 and L2 and between L1 and L3 and can not produce mutual inductance, while winding L 2 and winding of winding L 3 interbody spacers, make 3 of winding L 2 and winding L can not produce mutual inductance, therefore, winding L 1, two of L2 and L3 all can not produce mutual inductance, L1 then, L2 and L3 can independently form three transformers, the multiple magnetic circuit transformer of present embodiment can realize importing simultaneously the input signal of three kinds of different frequencies or phase place or amplitude like this, and export three kinds of corresponding output signal simultaneously, and each group is imported, the effect of isolating fully between output signal.
Fig. 3 is that the structure of another embodiment of the multiple magnetic circuit transformer of the embodiment of the invention is formed schematic diagram.As shown in Figure 3, the multiple magnetic circuit transformer of present embodiment comprises 5 magnetic circuits (magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and magnetic circuit 5) that 5 magnetic cores form; And be wound on three groups of winding L 1, L2 and L2 ' on described 5 magnetic circuits, wherein winding L 1 continuously successively or intert and be wound on magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and the magnetic circuit 5 of described 5 magnetic circuits, every circle winding of winding L 1 is single magnetic circuit winding; Winding L 2 is wound on magnetic circuit 1 and the magnetic circuit 2 simultaneously, and every circle winding of winding L 2 is the double magnetic circuit winding; Winding L 2 ' is wound on the magnetic circuit 2, and every circle winding of winding L 2 ' is single magnetic circuit winding.Wherein winding L 2 ' and L2 series connection, and the induction magnetic flux of winding L 2 ' is opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Therefore, winding L 2 ' has formed the compensation winding between L1 and L2.In the specific implementation, winding L 2 ' also can be wound on magnetic circuit 3,4 or 5 and winding L 2 ' also can be connected with winding L 1, and when connecting with L1, the induced magnetism of winding L 2 ' is colluded sample need be opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Winding L 1, L2 and L2 ' can include only an elementary winding, also can comprise an elementary winding and at least one secondary winding; In the equivalent winding that winding L 1, L2 and L2 ' can make for coil windings, planar conductor winding or printed circuit board (PCB) any one, the perhaps combination of described each winding.Wherein, described coil windings is wrapped on the magnetic core on vertical magnetic circuit direction by lead, and lead can be single, perhaps many coilings side by side, and the material of employing can be various conductor wires such as copper, aluminium, also can adopt various conductive foil band coilings such as Copper Foil, aluminium foil; Described planar conductor winding forms by the thin type conductor material is folding; When the equivalent winding that adopts printed circuit board (PCB) to make, the printed circuit board (PCB) that is used for making equivalent winding can be one or more layers.In addition, the magnetic core of present embodiment can be the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
In the present embodiment, because winding L 1 all has winding on each magnetic circuit of described multiple magnetic circuit transformer, and winding L 2 only has winding on magnetic circuit 1 and magnetic circuit 2, then can produce mutual inductance between winding L 1 and L2, therefore, present embodiment series compensation winding L 2 ' on winding L 2 is offset the mutual inductance that L1 produces on L2, finally satisfy between the winding of winding L 1 and L2 series connection behind the L2 ' not have mutual inductance.Then L1 can independently form a transformer, L2 can independently form a transformer together with L2 ', the multiple magnetic circuit transformer of present embodiment can realize importing simultaneously the input signal of two kinds of different frequencies or phase place or amplitude like this, and export two kinds of corresponding output signal simultaneously, and each organizes the effect of isolating fully between input, output signal.
Fig. 4 is that the structure of another embodiment of the multiple magnetic circuit transformer of the embodiment of the invention is formed schematic diagram.As shown in Figure 4, the multiple magnetic circuit transformer of present embodiment comprises 5 magnetic circuits (magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and magnetic circuit 5) that 5 magnetic cores form; And be wound on three groups of winding L 1, L2 and L2 ' on described 5 magnetic circuits, wherein winding L 1 continuously successively or intert and be wound on magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and the magnetic circuit 5 of described 5 magnetic circuits, every circle winding of winding L 1 is single magnetic circuit winding; Winding L 2 is wound on magnetic circuit 1 and the magnetic circuit 2 simultaneously, and every circle winding of winding L 2 is the double magnetic circuit winding; Winding L 2 ' is wound on magnetic circuit 4 and the magnetic circuit 5 simultaneously, and every circle winding of winding L 2 ' is the double magnetic circuit winding.Wherein winding L 2 ' and L2 series connection, and the induction magnetic flux of winding L 2 ' is opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Therefore, winding L 2 ' has formed the compensation winding between L1 and L2.In the specific implementation, winding L 2 ' also can be connected with winding L 1, and when connecting with L1, the induced magnetism of winding L 2 ' is colluded sample need be opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Winding L 1, L2 and L2 ' can include only an elementary winding, also can comprise an elementary winding and at least one secondary winding; In the equivalent winding that winding L 1, L2 and L2 ' can make for coil windings, planar conductor winding or printed circuit board (PCB) any one, the perhaps combination of described each winding.Wherein, described coil windings is wrapped on the magnetic core on vertical magnetic circuit direction by lead, and lead can be single, perhaps many coilings side by side, and the material of employing can be various conductor wires such as copper, aluminium, also can adopt various conductive foil band coilings such as Copper Foil, aluminium foil; Described planar conductor winding forms by the thin type conductor material is folding; When the equivalent winding that adopts printed circuit board (PCB) to make, the printed circuit board (PCB) that is used for making equivalent winding can be one or more layers.In addition, the magnetic core of present embodiment can be the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
In the present embodiment, because winding L 1 all has winding on each magnetic circuit of described multiple magnetic circuit transformer, and winding L 2 only has winding on magnetic circuit 1 and magnetic circuit 2, then can produce mutual inductance between winding L 1 and L2, therefore, present embodiment series compensation winding L 2 ' on winding L 2 is offset the mutual inductance that L1 produces on L2, finally satisfy between the winding of winding L 1 and L2 series connection behind the L2 ' not have mutual inductance.Then L1 can independently form a transformer, L2 can independently form a transformer together with L2 ', the multiple magnetic circuit transformer of present embodiment can realize importing simultaneously the input signal of two kinds of different frequencies or phase place or amplitude like this, and export two kinds of corresponding output signal simultaneously, and each organizes the effect of isolating fully between input, output signal.
Fig. 5 is that the structure of another embodiment of the multiple magnetic circuit transformer of the embodiment of the invention is formed schematic diagram.As shown in Figure 5, the multiple magnetic circuit transformer of present embodiment comprises 5 magnetic circuits (magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and magnetic circuit 5) that 5 magnetic cores form; And be wound on two groups of winding L 1 and L2 on described 5 magnetic circuits, wherein winding L 1 continuously successively or intert and be wound on magnetic circuit 1, magnetic circuit 2, magnetic circuit 3 and the magnetic circuit 4 and magnetic circuit 5 of described 5 magnetic circuits, every circle winding of winding L 1 is single magnetic circuit winding; Winding L 2 is wound on magnetic circuit 3 and the magnetic circuit 4 simultaneously, and every circle winding of winding L 2 is the double magnetic circuit winding; In the specific implementation, winding L 2 also can be wound on magnetic circuit 2 and the magnetic circuit 3 simultaneously.Winding L 1, L2 can include only an elementary winding, also can comprise an elementary winding and at least one secondary winding; In the equivalent winding that winding L 1, L2 can be made for coil windings, planar conductor winding or printed circuit board (PCB) any one, the perhaps combination of described each winding.Wherein, described coil windings is wrapped on the magnetic core on vertical magnetic circuit direction by lead, and lead can be single, perhaps many coilings side by side, and the material of employing can be various conductor wires such as copper, aluminium, also can adopt various conductive foil band coilings such as Copper Foil, aluminium foil; Described planar conductor winding forms by the thin type conductor material is folding; When the equivalent winding that adopts printed circuit board (PCB) to make, the printed circuit board (PCB) that is used for making equivalent winding can be one or more layers.In addition, the magnetic core of present embodiment can be the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
In the present embodiment, because the induction that winding L 1 produces on winding L 2 is cancelled out each other, then can not produce mutual inductance between winding L 1 and L2, therefore, then L1 and L2 all can independently form a transformer, the multiple magnetic circuit transformer of present embodiment can realize importing simultaneously the input signal of two kinds of different frequencies or phase place or amplitude like this, and exports two kinds of corresponding output signal simultaneously, and each organizes the effect of isolating fully between input, output signal.
Fig. 6 is that the structure of another embodiment of the multiple magnetic circuit transformer of the embodiment of the invention is formed schematic diagram.As shown in Figure 6, the multiple magnetic circuit transformer of present embodiment comprises 5 magnetic circuits (magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and magnetic circuit 5) that 5 magnetic cores form; And be wound on three groups of winding L 1, L2 and L2 ' on described 5 magnetic circuits, wherein winding L 1 continuously successively or intert and be wound on magnetic circuit 1, magnetic circuit 2, magnetic circuit 3 and the magnetic circuit 4 and magnetic circuit 5 of described 5 magnetic circuits, every circle winding of winding L 1 is single magnetic circuit winding; Winding L 2 is wound on magnetic circuit 1, magnetic circuit 2 and the magnetic circuit 3 simultaneously, and every circle winding of winding L 2 is three magnetic circuit windings; Winding L 2 ' is wound on the magnetic circuit 3, and every circle winding of winding L 2 ' is the double magnetic circuit winding.Wherein winding L 2 ' and L2 series connection, and the induction magnetic flux of winding L 2 ' is opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Therefore, winding L 2 ' has formed the compensation winding between L1 and L2.In the specific implementation, winding L 2 ' also can be connected with winding L 1, and when connecting with L1, the induced magnetism of winding L 2 ' is colluded sample need be opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Winding L 1, L2 and L2 ' can include only an elementary winding, also can comprise an elementary winding and at least one secondary winding; In the equivalent winding that winding L 1, L2 and L2 ' can make for coil windings, planar conductor winding or printed circuit board (PCB) any one, the perhaps combination of described each winding.Wherein, described coil windings is wrapped on the magnetic core on vertical magnetic circuit direction by lead, and lead can be single, perhaps many coilings side by side, and the material of employing can be various conductor wires such as copper, aluminium, also can adopt various conductive foil band coilings such as Copper Foil, aluminium foil; Described planar conductor winding forms by the thin type conductor material is folding; When the equivalent winding that adopts printed circuit board (PCB) to make, the printed circuit board (PCB) that is used for making equivalent winding can be one or more layers.In addition, the magnetic core of present embodiment can be the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
In the present embodiment, because winding L 1 all has winding on each magnetic circuit of described multiple magnetic circuit transformer, and winding L 2 only has winding on magnetic circuit 1, magnetic circuit 2 and magnetic circuit 3, then can produce mutual inductance between winding L 1 and L2, therefore, present embodiment series compensation winding L 2 ' on winding L 2 is offset the mutual inductance that L1 produces on L2, finally satisfy between the winding of winding L 1 and L2 series connection behind the L2 ' not have mutual inductance.Then L1 can independently form a transformer, L2 can independently form a transformer together with L2 ', the multiple magnetic circuit transformer of present embodiment can realize importing simultaneously the input signal of two kinds of different frequencies or phase place or amplitude like this, and export two kinds of corresponding output signal simultaneously, and each organizes the effect of isolating fully between input, output signal.
Fig. 7 is that the structure of another embodiment of the multiple magnetic circuit transformer of the embodiment of the invention is formed schematic diagram.As shown in Figure 7, the multiple magnetic circuit transformer of present embodiment comprises 5 magnetic circuits (magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and magnetic circuit 5) that 5 magnetic cores form; And be wound on five groups of winding L 1, L2, L2 ', L3 and L3 ' on described 5 magnetic circuits, wherein winding L 1 continuously successively or intert and be wound on magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and the magnetic circuit 5 of described 5 magnetic circuits, every circle winding of winding L 1 is single magnetic circuit winding; Winding L 2 is wound on magnetic circuit 1 and the magnetic circuit 2 simultaneously, and every circle winding of winding L 2 is the double magnetic circuit winding; Winding L 2 ' is wound on the magnetic circuit 2, and every circle winding of winding L 2 ' is single magnetic circuit winding; Winding L 3 is wound on magnetic circuit 4 and the magnetic circuit 5 simultaneously, and every circle winding of winding L 3 is the double magnetic circuit winding; Winding L 3 ' is wound on the magnetic circuit 4, and every circle winding of winding L 3 ' is single magnetic circuit winding.Wherein winding L 2 ' and L2 series connection, and the induction magnetic flux of winding L 2 ' is opposite with the induction magnetic flux that winding L 1 produces on described winding L 2; Winding L 3 ' and L3 series connection, and the induction magnetic flux of winding L 3 ' is opposite with the induction magnetic flux that winding L 1 produces on described winding L 3.Therefore, winding L 2 ' has formed the compensation winding between L1 and L2; Winding L 3 ' has formed the compensation winding between L1 and L3; In the specific implementation, winding L 2 ' and L3 ' also can connect with winding L 1, and when connecting with L1, the induced magnetism of winding L 2 ' is colluded sample need be opposite with the induction magnetic flux that winding L 1 produces on described winding L 2; The induced magnetism of winding L 3 ' is colluded sample need be opposite with the induction magnetic flux that winding L 1 produces on described winding L 3.Winding L 1, L2, L2 ' L3 and L3 ' can include only an elementary winding, also can comprise an elementary winding and at least one secondary winding; In the equivalent winding that winding L 1, L2, L2 ' L3 and L3 ' can make for coil windings, planar conductor winding or printed circuit board (PCB) any one, the perhaps combination of described each winding.Wherein, described coil windings is wrapped on the magnetic core on vertical magnetic circuit direction by lead, and lead can be single, perhaps many coilings side by side, and the material of employing can be various conductor wires such as copper, aluminium, also can adopt various conductive foil band coilings such as Copper Foil, aluminium foil; Described planar conductor winding forms by the thin type conductor material is folding; When the equivalent winding that adopts printed circuit board (PCB) to make, the printed circuit board (PCB) that is used for making equivalent winding can be one or more layers.In addition, the magnetic core of present embodiment can be the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
In the present embodiment, because winding L 1 all has winding on each magnetic circuit of described multiple magnetic circuit transformer, and winding L 2 only has winding on magnetic circuit 1 and magnetic circuit 2, then can produce mutual inductance between winding L 1 and L2, therefore, present embodiment series compensation winding L 2 ' on winding L 2 is offset the mutual inductance that L1 produces on L2; Simultaneously, winding L 3 only has winding on magnetic circuit 4 and magnetic circuit 5, then can produce mutual inductance between winding L 1 and L3, and therefore, present embodiment series compensation winding L 3 ' on winding L 3 is offset the mutual inductance that L1 produces on L3.Finally satisfy between the winding of winding L 1 and L2 series connection behind the L2 ' and do not have mutual inductance; Get between winding behind L1 and the L3 series connection L3 ' and do not have mutual inductance; Because L2 and winding of L3 interbody spacer then can not produce mutual inductance between L2 and L3.Then L1 can independently form a transformer, L2 can independently form a transformer together with L2 ', and L3 can independently form a transformer together with L3 '.The multiple magnetic circuit transformer of present embodiment can realize importing simultaneously the input signal of three kinds of different frequencies or phase place or amplitude like this, and exports three kinds of corresponding output signal simultaneously, and each organizes the effect of isolating fully between input, output signal.
Fig. 8 is that the structure of another embodiment of the multiple magnetic circuit transformer of the embodiment of the invention is formed schematic diagram.As shown in Figure 3, the multiple magnetic circuit transformer of present embodiment comprises 7 magnetic circuits (magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4, magnetic circuit 5, magnetic circuit 6 and magnetic circuit 7) that 7 magnetic cores form; And be wound on three groups of winding L 1, L2 and L3 on described 7 magnetic circuits, wherein winding L 1 continuously successively or intert and be wound on magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4, magnetic circuit 5, magnetic circuit 6 and the magnetic circuit 7 of described 7 magnetic circuits, every circle winding of winding L 1 is single magnetic circuit winding; Winding L 2 is wound on magnetic circuit 2 and the magnetic circuit 3 simultaneously, and every circle winding of winding L 2 is the double magnetic circuit winding; Winding L 3 is wound on magnetic circuit 4 and the magnetic circuit 6 simultaneously, and every circle winding of winding L 3 is the double magnetic circuit winding.In the specific implementation, winding L 1, L2 and L3 can include only an elementary winding, also can comprise an elementary winding and at least one secondary winding; In the equivalent winding that winding L 1, L2 and L3 can make for coil windings, planar conductor winding or printed circuit board (PCB) any one, the perhaps combination of described each winding.Wherein, described coil windings is wrapped on the magnetic core on vertical magnetic circuit direction by lead, and lead can be single, perhaps many coilings side by side, and the material of employing can be various conductor wires such as copper, aluminium, also can adopt various conductive foil band coilings such as Copper Foil, aluminium foil; Described planar conductor winding forms by the thin type conductor material is folding; When the equivalent winding that adopts printed circuit board (PCB) to make, the printed circuit board (PCB) that is used for making equivalent winding can be one or more layers.In addition, the magnetic core of present embodiment can be the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
In the present embodiment, because winding L 1 all has winding on each magnetic circuit of described multiple magnetic circuit transformer, winding L 2 has winding simultaneously on magnetic circuit 2 and magnetic circuit 3, and the induction that winding L 1 produces on winding L 2 is cancelled out each other, and then can not produce mutual inductance between winding L 1 and L2; Equally, winding L 3 has winding simultaneously on magnetic circuit 5 and magnetic circuit 6, and the induction that winding L 1 produces on winding L 3 is cancelled out each other, and then can not produce mutual inductance between winding L 1 and L3; And, winding L 2 and L3 be a magnetic circuit at interval, then can not produce mutual inductance equally between winding L 2 and L3, therefore, present embodiment winding L 1, L2 and two of L3 all can not produce mutual inductance, and then L1, L2 and L3 can independently form three transformers, and the multiple magnetic circuit transformer of present embodiment can realize importing simultaneously the input signal of three kinds of different frequencies like this, and export three kinds of corresponding output signal simultaneously, and each organizes the effect of isolating fully between input, output signal.
Fig. 9 is that the structure of another embodiment of the multiple magnetic circuit transformer of the embodiment of the invention is formed schematic diagram.As shown in Figure 9, the multiple magnetic circuit transformer of present embodiment comprises 7 magnetic circuits (magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4, magnetic circuit 5, magnetic circuit 6 and magnetic circuit 7) that 7 magnetic cores form; And be wound on four groups of winding L 1, L2, L2 ' and L3 on described 7 magnetic circuits, wherein winding L 1 continuously successively or intert and be wound on magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4, magnetic circuit 5, magnetic circuit 6 and the magnetic circuit 7 of described 7 magnetic circuits, every circle winding of winding L 1 is single magnetic circuit winding; Winding L 2 is wound on magnetic circuit 1, magnetic circuit 2 and the magnetic circuit 3 simultaneously, and every circle winding of winding L 2 is three magnetic circuit windings; Winding L 2 ' is wound on the magnetic circuit 3, and every circle winding of winding L 2 ' is single magnetic circuit winding; Winding L 3 is wound on magnetic circuit 5 and the magnetic circuit 6 simultaneously.Wherein winding L 2 ' and L2 series connection, and the induction magnetic flux of winding L 2 ' is opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Therefore, winding L 2 ' has formed the compensation winding between L1 and L2.In the specific implementation, winding L 2 ' also can be connected with winding L 1, and when connecting with L1, the induced magnetism of winding L 2 ' is colluded sample need be opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Winding L 1, L2, L2 ' and L3 can include only an elementary winding, also can comprise an elementary winding and at least one secondary winding; In the equivalent winding that winding L 1, L2, L2 ' and L3 can make for coil windings, planar conductor winding or printed circuit board (PCB) any one, the perhaps combination of described each winding.Wherein, described coil windings is wrapped on the magnetic core on vertical magnetic circuit direction by lead, and lead can be single, perhaps many coilings side by side, and the material of employing can be various conductor wires such as copper, aluminium, also can adopt various conductive foil band coilings such as Copper Foil, aluminium foil; Described planar conductor winding forms by the thin type conductor material is folding; When the equivalent winding that adopts printed circuit board (PCB) to make, the printed circuit board (PCB) that is used for making equivalent winding can be one or more layers.In addition, the magnetic core of present embodiment can be the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
In the present embodiment, because winding L 1 all has winding on each magnetic circuit of described multiple magnetic circuit transformer, and winding L 2 only has winding on magnetic circuit 1, magnetic circuit 2 and the magnetic circuit, then can produce mutual inductance between winding L 1 and L2, therefore, present embodiment series compensation winding L 2 ' on winding L 2 is offset the mutual inductance that L1 produces on L2; Though winding L 3 only has winding on magnetic circuit 5 and magnetic circuit 6,, then can not produce mutual inductance between winding L 1 and L3 on winding L 3 because the induction that winding L 1 produces is cancelled out each other; Simultaneously winding L 2 and L3 magnetic circuit at interval then can not produce mutual inductance between winding L 2 and L3 equally, and then the multiple magnetic circuit transformer of present embodiment finally satisfies between winding behind winding L 1 and the L2 series connection L2 ' and do not have mutual inductance; There is not mutual inductance between L1 and L3; There is not mutual inductance between L2 and L3.Then L1 can independently form a transformer, L2 can independently form a transformer together with L2 ', and L3 can independently form a transformer.The multiple magnetic circuit transformer of present embodiment can realize importing simultaneously the input signal of three kinds of different frequencies or phase place or amplitude like this, and exports three kinds of corresponding output signal simultaneously, and each organizes the effect of isolating fully between input, output signal.
Above disclosed is preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (8)
1, a kind of multiple magnetic circuit transformer is characterized in that, comprising:
A plurality of magnetic circuits that a plurality of magnetic cores form;
And be wound on many groups winding on described a plurality of magnetic circuit;
Every at least one magnetic circuit of two adjacent groups winding interbody spacer of described many group windings.
2, multiple magnetic circuit transformer as claimed in claim 1 is characterized in that, every circle winding technique of every group of winding of described many group windings is on the single magnetic circuit or be wound on simultaneously on a plurality of magnetic circuits.
3, multiple magnetic circuit transformer as claimed in claim 1 is characterized in that, every group of winding of described many group windings comprises an elementary winding or comprise an elementary winding and at least one secondary winding.
4, multiple magnetic circuit transformer as claimed in claim 1 is characterized in that, described magnetic core is the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or the band newel that combined by silicon steel sheet.
5, multiple magnetic circuit transformer as claimed in claim 1 is characterized in that, described many group windings are one or more in the equivalent winding made of coil windings, planar conductor winding or printed circuit board (PCB).
6, a kind of multiple magnetic circuit transformer is characterized in that, comprising:
A plurality of magnetic circuits that a plurality of magnetic cores form;
And be wound on many groups winding on described a plurality of magnetic circuit;
Described many group windings comprise first winding and at least one group second winding;
Described first winding continuously successively or intert and be wound on the single magnetic circuit of described a plurality of magnetic circuits;
When described second winding is many groups, every two adjacent groups second at least one magnetic circuit of winding interbody spacer;
Described second winding is wound on the even number magnetic circuit of described a plurality of magnetic circuits simultaneously, and described even number magnetic circuit comprises the magnetic circuit that the side column of described a plurality of magnetic cores forms, be in series with the compensation winding on any one group in described second winding and described first winding, described compensation winding is used for described first winding and described second winding are carried out decoupling zero;
Perhaps, described second winding is wound on the even number magnetic circuit of described a plurality of magnetic circuits simultaneously, and described even number magnetic circuit does not comprise the magnetic circuit that the side column of described a plurality of magnetic cores forms;
Perhaps, described second winding is wound on the odd number magnetic circuit of described a plurality of magnetic circuits simultaneously, be in series with the compensation winding on any one group in described second winding and described first winding, described compensation winding is used for described first winding and described second winding are carried out decoupling zero;
When described second winding is many groups, every two adjacent groups second at least one magnetic circuit of winding interbody spacer.
7, multiple magnetic circuit transformer as claimed in claim 6 is characterized in that, described compensation winding technique is on the single magnetic circuit or be wound on simultaneously on a plurality of magnetic circuits.
8, multiple magnetic circuit transformer as claimed in claim 6 is characterized in that, when described compensation winding and described second windings in series, the induction magnetic flux of described compensation winding is opposite with the induction magnetic flux that described first winding produces on described second winding;
When described compensation winding and described first windings in series, the induction magnetic flux of described compensation winding is opposite at the induction magnetic flux that second winding produces with described first winding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101236295A CN101399114B (en) | 2007-09-28 | 2007-09-28 | Multiple magnetic circuit transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101236295A CN101399114B (en) | 2007-09-28 | 2007-09-28 | Multiple magnetic circuit transformer |
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| CN101399114A true CN101399114A (en) | 2009-04-01 |
| CN101399114B CN101399114B (en) | 2011-07-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021922A (en) * | 2014-05-30 | 2014-09-03 | 湖南大学 | Transformer capable of achieving winding non-orthogonal decoupling |
| CN104681249A (en) * | 2015-03-09 | 2015-06-03 | 南京航空航天大学 | Improved non-contact transformer with secondary side current phase detection function |
| CN104714134A (en) * | 2015-04-07 | 2015-06-17 | 国家电网公司 | Decoupling test method for air-core reactor integrated to transformer |
| CN112166481A (en) * | 2019-10-23 | 2021-01-01 | 深圳市大疆创新科技有限公司 | Transformer, drive circuit system and electronic equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2567748Y (en) * | 2001-06-12 | 2003-08-20 | 赵强 | Multipurpose multi-cylindrical multi-phase low mutual interference combined transformer |
| CN1832066A (en) * | 2005-03-11 | 2006-09-13 | 东光株式会社 | Current balance transformer and electric-discharge lamp alight apparatus using thereof |
-
2007
- 2007-09-28 CN CN2007101236295A patent/CN101399114B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021922A (en) * | 2014-05-30 | 2014-09-03 | 湖南大学 | Transformer capable of achieving winding non-orthogonal decoupling |
| CN104681249A (en) * | 2015-03-09 | 2015-06-03 | 南京航空航天大学 | Improved non-contact transformer with secondary side current phase detection function |
| CN104714134A (en) * | 2015-04-07 | 2015-06-17 | 国家电网公司 | Decoupling test method for air-core reactor integrated to transformer |
| CN104714134B (en) * | 2015-04-07 | 2016-10-12 | 国家电网公司 | Air reactor is integrated in the solution decoupling detecting method of transformator |
| CN112166481A (en) * | 2019-10-23 | 2021-01-01 | 深圳市大疆创新科技有限公司 | Transformer, drive circuit system and electronic equipment |
| WO2021077346A1 (en) * | 2019-10-23 | 2021-04-29 | 深圳市大疆创新科技有限公司 | Transformer, drive circuit system and electronic device |
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| Publication number | Publication date |
|---|---|
| CN101399114B (en) | 2011-07-27 |
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