CN104966604A - Magnetic assembly and method for winding coils of winding thereof - Google Patents
Magnetic assembly and method for winding coils of winding thereof Download PDFInfo
- Publication number
- CN104966604A CN104966604A CN201410356965.4A CN201410356965A CN104966604A CN 104966604 A CN104966604 A CN 104966604A CN 201410356965 A CN201410356965 A CN 201410356965A CN 104966604 A CN104966604 A CN 104966604A
- Authority
- CN
- China
- Prior art keywords
- winding
- magnetic core
- air gap
- component
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
The invention provides a magnetic assembly and a method for winding coils of a winding thereof applied in a transformer or an inductance, and relates to the field of magnetic technology. The magnetic assembly comprises a magnetic core which has at least one air gap and at least one winding which winds around the magnetic core. The winding circumvents the air gap and winds around the magnetic core, and each layer coil of the winding is arranged at a certain interval from one another, the distance being no less than the thickness of the winding coil. Since the winding winds around by circumventing the periphery of the air gap, the eddy current loss caused by a magnetic flux can be reduced to the minimum level, which markedly increases efficiency and reduces the heat radiation amount. An air flow channel for facilitating heat radiation is formed among layers of the winding coil, thereby reducing the heat radiation amount of the magnetic assembly. At the same time, the periphery of the air gap forms an air channel which is inside the transformer or the inductance, and the air channel can assist in the heat radiation of the transformer or the inductance, which further lowers the heat radiation amount. By means of the aforementioned, the technical problems of comparatively larger eddy current loss and severe heating phenomenon caused by winding spanning the air gap of prior art are solved.
Description
Technical field
The present invention relates to magnetic technology field, particularly relate to and a kind ofly can be applicable to magnet assembly in transformer or inductance and winding coil winding method thereof.
Background technology
Magnet assembly is the pith in transformer or inductance, and mainly comprise magnetic core and winding, mainly realize the functions such as energy storage, conversion, electrical equipment isolation, its volume and performance produce vital impact to whole transformer or inductance.The inductance of conventional topologies and circuit or the winding of transformer, mostly carry out coiling by enamelled wire, multi cord or copper sheet, the coiling of whole line bag spans the junction in the middle of inductance or transformer, junction in the middle of inductance or transformer does not exist air gap, this winding method is no problem.
Along with transformer efficiency density is more and more higher, output circuit is increasing, and copper loss is also more and more higher, and therefore, heat radiation is one and is difficult to solve but urgent problem.Meanwhile, popular along with LLC topology, the high frequency in increasing transformer or high-frequency inductor is arranged, and need design air gap to meet corresponding inductance value, and in the winding technique method of routine, because winding spans air gap, cause producing larger eddy current loss and serious fever phenomenon.And existing winding causes technique too complicated to avoid air gap, artificial participation is more, causes cost higher, and is difficult to the technical barrier solving heat radiation.
Summary of the invention
Causing producing the technical problem of larger eddy current loss and serious fever phenomenon to solve winding leap air gap coiling in prior art, the invention provides a kind of novel magnet assembly and winding coil winding method thereof.
To achieve these goals, the technical solution used in the present invention is: provide a kind of magnet assembly, be applied in transformer or inductance, described magnet assembly comprises the magnetic core with at least one air gap and at least one winding be coiled on described magnetic core, it is characterized in that, described winding is avoided described air gap and is wound on described magnetic core, and each layer line circle of described winding keeps at a certain distance away and arranges with the air communication channel forming described magnet assembly inside, and described distance is not less than the thickness of described coil.
Further, described winding is the line bag of spiral coil or planar coil composition, and the spacing between each layer line circle of described spiral or between flat each layer line circle is greater than the thickness of described coil.
Further, be provided with fixing viscose or support between described each layer line circle and produce vibration to prevent described coil.
Further, described magnetic core comprises the first component and second component that are oppositely arranged, described first component and second component are provided with at least three relative mating surfaces, in described at least three relative mating surfaces, the mating surface place being at least positioned at described magnetic core inside is provided with described air gap, and described air gap periphery defines the air channel of described magnet assembly inside.
Further, described magnetic core is symmetrical magnetic core, described mating surface is positioned on the center line of described symmetrical magnetic core, described winding comprises at least one first winding and at least one second winding, described at least one first winding technique is positioned at the side of described air gap on described symmetrical magnetic core, and described at least one second winding technique is positioned at the opposite side of described air gap on described symmetrical magnetic core.
Further, described symmetrical magnetic core is EE type magnetic core, described first component and second component are in " E " shape, the first component of described " E " shape is relative with the mating surface at second component two ends, form two side columns of described EE type magnetic core, the first component of described " E " shape is relative with the mating surface in the middle of second component, form the center pillar of described EE type magnetic core, described air gap is opened on described center pillar, and described center pillar is divided into the Part I and Part II that lay respectively at described air gap both sides, on the Part I that described at least one first winding and at least one second winding are wound on described center pillar respectively and Part II.
Further, described symmetrical magnetic core is EE type magnetic core, described first component and second component are in " E " shape, the first component of described " E " shape is relative with the mating surface at second component two ends, form two side columns of described EE type magnetic core, the first component of described " E " shape is relative with the mating surface in the middle of second component, form the center pillar of described EE type magnetic core, described two side columns and described center pillar offer described air gap respectively, and described at least one first winding and at least one second winding to be wound on respectively on described center pillar and to lay respectively at the both sides of air gap on described center pillar.
Further, described magnetic core is asymmetric magnetic core, and described air gap is formed in the side of described asymmetric magnetic core inside, and described winding is wrapped in the opposite side away from described air gap of described asymmetric magnetic core inside.
Further, described asymmetric magnetic core is EI type magnetic core, described first component is in " I " shape, described second component is in " E " shape, the first component of described " I " shape is relative with the mating surface at the second component two ends of " E " shape, form two side columns of described EI type magnetic core, the first component of described " I " shape is relative with the mating surface in the middle of the second component of " E " shape, form the center pillar of described EI type magnetic core, described air gap is opened in the side of described center pillar near described first component, and described winding is wrapped in the opposite side away from described air gap of described center pillar.
The present invention also provides a kind of winding coil winding method of magnet assembly, described magnet assembly comprises the magnetic core and at least one first winding be coiled on described magnetic core and at least one second winding with at least one air gap, described first winding and described second winding are formed by lattice coil coiling respectively, described magnetic core comprises the first component and second component that are oppositely arranged, described first component and second component are provided with at least three relative mating surfaces, in described at least three relative mating surfaces, the mating surface place being at least positioned at described magnetic core inside is provided with described air gap, described first component is relative with the mating surface at second component two ends, form two side columns of described magnetic core, described first component is relative with the mating surface in the middle of second component, form the center pillar of described magnetic core, described center pillar is divided into the Part I and Part II that lay respectively at described air gap both sides by described air gap, described method comprises:
The lattice coil of described first winding being avoided described air gap is positioned on the Part I of described air gap side with the form of spiraling or the independent dull and stereotyped form center pillar being wound on described magnetic core that keeps at a certain distance away, the lattice coil of described second winding is avoided described air gap to be positioned on the Part II of described air gap opposite side with the form of spiraling or the independent dull and stereotyped form center pillar being wound on described magnetic core that keeps at a certain distance away, described distance is not less than the thickness of single layer coil.
After adopting technique scheme, the present invention can obtain following Advantageous Effects: the winding due to magnet assembly avoids the air gap of magnetic core, and each layer line circle of winding keeps at a certain distance away, setting is with the air communication channel forming magnet assembly inside, this distance is not less than the thickness of coil, therefore, the eddy current loss of the transformer of this magnet assembly or inductance is adopted to be reduced to minimum level, drastically increase efficiency, reduce caloric value, the setting and each layer line circle of winding keeps at a certain distance away, air communication channel can be formed in magnet assembly inside, be convenient to heat radiation, decrease the caloric value of magnet assembly.Simultaneously, because winding avoids air gap periphery coiling, air gap periphery defines the air channel of transformer or inductance inside, can auxiliary transformer or inductance dispel the heat, further reduction caloric value, thus solve winding in prior art and cross over the technical problem that air gap coiling causes producing larger eddy current loss and serious fever phenomenon, use and thisly avoid air gap and the transformer of magnet assembly with heat sinking function even can remove outside resonant inductance, self integrated resonant inductance function.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the planar structure schematic diagram of the magnet assembly that the embodiment of the present invention one relates to;
Fig. 2 is the perspective view of the magnet assembly that the embodiment of the present invention one relates to;
Fig. 3 is the planar structure schematic diagram of the magnet assembly that the embodiment of the present invention two relates to;
Fig. 4 is the perspective view of the magnet assembly that the embodiment of the present invention two relates to;
Fig. 5 is the planar structure schematic diagram of the magnet assembly that the embodiment of the present invention three relates to;
Fig. 6 is the perspective view of the magnet assembly that the embodiment of the present invention three relates to;
Fig. 7 is the planar structure schematic diagram of the magnet assembly that the embodiment of the present invention four relates to;
Fig. 8 is the perspective view of the magnet assembly that the embodiment of the present invention four relates to;
Fig. 9 is the planar structure schematic diagram of the magnet assembly that the embodiment of the present invention five relates to;
Figure 10 is the perspective view of the magnet assembly that the embodiment of the present invention five relates to.
Embodiment
Cause producing the technical problem of larger eddy current loss and serious fever phenomenon to solve winding leap air gap coiling in prior art, the main technical schemes that the present invention adopts is: the air gap winding of magnet assembly being avoided magnetic core is wound on magnetic core, and each layer line circle of winding keeps at a certain distance away and arranges with the air communication channel forming magnet assembly inside, each interlayer of coil every distance be not less than the thickness of coil.
The magnet assembly that the present invention relates to is applied in transformer or inductance, magnet assembly comprises the magnetic core with at least one air gap and the winding be coiled on magnetic core, winding is avoided air gap and is wound on magnetic core, each layer line circle of winding keeps at a certain distance away and arranges with the air communication channel forming magnet assembly inside, and the distance between each layer line circle is not less than the thickness of coil.In the present invention, winding is the line bag of spiral coil or planar coil composition, coil is copper sheet or other materials, concrete, planar coil is preferably plane copper coin, in addition, the magnetic core that the present invention relates to is applicable to various shape, and such as EE type, EI type, PQ type, PQI type, ER type etc., be explained in detail different execution mode of the present invention below in conjunction with accompanying drawing.
Embodiment one
Figure 1 shows that the planar structure schematic diagram of the magnet assembly that the embodiment of the present invention one relates to, as can be seen from the figure, the present embodiment relates to magnet assembly 1 and comprises the magnetic core with an air gap 15 and the winding be coiled on magnetic core, winding is avoided air gap 15 and is wound on magnetic core, winding is formed by lattice coil coiling, each layer line circle of winding keeps at a certain distance away and arranges with the air communication channel forming magnet assembly inside, and the distance between each layer line circle is not less than the thickness of coil.Concrete, in the present embodiment, the coil of winding is in spiral shape, be equidistantly spaced between each layer line circle spiraled to form certain gap, this distance is not less than the thickness of every layer line circle, and the thickness of spiral coil is even, this gap defines the air communication channel of magnet assembly inside, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.
Magnetic core is divided into symmetrical two parts, is respectively the first component 10 in left side and the second component 11 on right side, and the axisymmetrical of two parts in the middle of magnetic core is arranged, and visible, the magnetic core in the present embodiment is symmetrical magnetic core.Air gap 15 is formed in the centre of symmetrical magnetic core, winding comprises at least one first winding and at least one second winding, at least one first winding and at least one second winding are wound on the both sides of symmetrical magnetic core respectively, concrete, at least one first winding technique is positioned at the side of air gap 15 on symmetrical magnetic core, and at least one second winding technique is positioned at the opposite side of air gap 15 on symmetrical magnetic core.
Concrete, in the present embodiment, first component 10 and second component 11 all have the shape similar with printer's letter " E ", and therefore, the symmetrical magnetic core in the present embodiment is EE type magnetic core.Each parts have three mating surfaces, mating surface on first component 10 is relative with the mating surface on second component 11, the mating surface being preferably two parts in the present embodiment is parallel to each other relatively, and the plane orthogonal of mating surface and formation band is with minimum core loss.First component 10 also close contact relative to two pairs of mating surfaces outside second component 11, define two side columns 12 of magnetic core, first component 10 is relative with a pair mating surface in the middle of second component 11, define the center pillar 13 of magnetic core, the centre of center pillar 13 is provided with the air gap 15 of magnetic core, and air gap 15 can be offered by the mode of grinding air gap.Center pillar 13 is divided into the Part I and Part II that are positioned at air gap 15 left and right sides by air gap 15, Part I is wound with the first winding 16, Part II is wound with the second winding 17, and therefore the first winding 16 and the second winding 17 all avoid air gap 15 coiling.
Figure 2 shows that the three-dimensional structure diagram of the magnet assembly related in the present embodiment, as can be seen from the figure, the winding of the present embodiment is spiral, be preferably the multiple layer of copper rubber-insulated wire circle of spiral, copper sheet spirals and is wound on magnetic core, particularly, the center of the copper sheet of spiral defines the space with a certain size internal diameter, the center pillar 13 of magnetic core inserts in this space, that is to say the multilayer copper sheet of spiral with equidistant around mode be wound on the center pillar 13 of magnetic core, air gap between each layer copper sheet is not less than the thickness of individual layer copper sheet, is convenient to distribute heat.In the scheme be more preferably, air gap between each layer copper sheet is one times of the thickness of individual layer copper sheet, this air gap can either form the air communication channel of magnet assembly inside for heat radiation, and the volume of whole magnet assembly can not be caused again because of excesssive gap excessive.The internal diameter of the copper sheet center gap of spiral is not less than the diameter of magnetic core center pillar 13, preferably, the internal diameter of the copper sheet center gap of spiral is a bit larger tham the diameter of magnetic core center pillar 13, namely between copper sheet and the center pillar 13 of magnetic core, also keeps certain space, can make better heat-radiation effect.
In addition, due to the setting that keeps at a certain distance away between the winding spiral coil in the present invention, therefore, lack fixing between each layer line circle and support, the impact that coil is easily subject to air-flow or electric current produces vibration, therefore, in the present embodiment, between each layer line circle, be preferably provided with fixing viscose or support produce vibration to prevent coil, the method to set up of viscose can adopt the mode of a glue or other feasible modes.
Winding defines the line bag of magnet assembly, and the form of line bag can be enamelled wire or lapped wire, can mix the blend packet modes such as copper cash, enamelled wire or multiply enamelled wire.The lead-out wire of winding, based on copper sheet, also can be auxiliary with copper cash or multi cord extraction.Adopt tinsel conductor bag and copper sheet lead-out wire can export larger electric current, assist heat radiation.Winding in the present embodiment adopts copper sheet coiling, farthest can utilize the window area of magnetic core, reduces current density, reduce the volume of transformer or inductance, reduce copper loss, therefore, the efficiency of transformer or inductance can be improved to a great extent, reduce caloric value.The center pillar 13 being positioned at air gap 15 both sides is wound with the first winding 16 and the second winding 17 respectively, in order to avoid disturbing and meeting corresponding safety requirement, also insulator spacer (not shown) is preferably provided with between two windings, in the present embodiment, insulator spacer is preferably plastic plate, can certainly be insulation framework or insulating tape etc.
The winding technique method of above-described magnet assembly is: the lattice coil of winding is avoided air gap 15 and kept at a certain distance away with the form of spiraling and be wound on the center pillar 13 of magnetic core, this distance is not less than the thickness of single layer coil, concrete, first winding 16 and the second winding 17 are formed by multiple layer of copper skin coil winding respectively, the multiple layer of copper rubber-insulated wire circle of the first winding 16 is positioned on the Part I of air gap 15 side with the form of the spiraling center pillar 13 being wound on magnetic core that keeps at a certain distance away, the multiple layer of copper rubber-insulated wire circle of the second winding 17 is positioned on the Part II of air gap 15 opposite side with the form of the spiraling center pillar 13 being wound on magnetic core that keeps at a certain distance away, spacing between each layer copper sheet coil is not less than the thickness of single layer coil, gap between each layer copper sheet defines the air communication channel of magnet assembly inside, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.In the present embodiment, the spacing be preferably between coil is the thickness of coil, thus, can ensure the air communication channel forming core assembly inside, avoid again the volume of core assembly excessive.
In the present embodiment, due to two windings 16,17 avoid air gap 15 coiling, therefore, the magnetic induction line of winding can not walk around air gap 15, the eddy current loss caused because of magnetic flux can be reduced to minimum level, drastically increase efficiency, reduce caloric value, and the spiral coil spacing certain distance of winding is arranged with the air communication channel forming magnet assembly inside, the distance between each layer line circle is not less than the thickness of coil, makes to have good air circulation between each layer line circle, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.Meanwhile, air gap periphery defines the air channel of transformer or inductance inside, auxiliary transformer or inductance can dispel the heat, reduces caloric value further.
Embodiment two
Figure 3 shows that the planar structure schematic diagram of the magnet assembly that the embodiment of the present invention two relates to, as can be seen from the figure, the present embodiment relates to magnet assembly 2 and comprises the magnetic core with three air gaps 25 and the winding be coiled on magnetic core, winding is avoided air gap 25 and is wound on magnetic core, winding is formed by multiple coil winding, each layer line circle of winding keeps at a certain distance away and arranges with the air communication channel forming magnet assembly inside, and the distance between each layer line circle is not less than the thickness of single layer coil.Concrete, in the present embodiment, the coil of winding is in spiral shape, be equidistantly spaced between each layer line circle spiraled to form certain gap, this distance is not less than the thickness of every layer line circle, and the thickness of spiral coil is even, this gap defines the air communication channel of magnet assembly inside, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.Magnetic core is divided into symmetrical two parts, is respectively the first component 20 in left side and the second component 21 on right side, and the axisymmetrical of two parts in the middle of magnetic core is arranged, and visible, the magnetic core in the present embodiment is similarly symmetrical magnetic core.Air gap 25 is formed in the centre of symmetrical magnetic core, and winding comprises at least one first winding and at least one second winding, and at least one first winding and at least one second winding are wound on the both sides of symmetrical magnetic core respectively.
The difference of the present embodiment and embodiment one is, symmetrical magnetic core is provided with three air gaps 25.Concrete, in the present embodiment, first component 20 and second component 21 all have the shape similar with printer's letter " E ", and therefore, the symmetrical magnetic core in the present embodiment is similarly EE type magnetic core.Each parts have three mating surfaces, mating surface on first component 20 is relative with the mating surface on second component 21, the mating surface being preferably two parts in the present embodiment is parallel to each other relatively, and the plane orthogonal of mating surface and formation band is with minimum core loss.First component 20 is relative with two pairs of mating surfaces outside second component 21, defines two side columns 22 of magnetic core, and first component 20 is relative with a pair mating surface in the middle of second component 21, defines the center pillar 23 of magnetic core.The centre of two side columns 22 and center pillar 23 is equipped with an air gap 25, in the present embodiment, air gap 25 can be offered by the mode of cushion steam gap, namely distance piece (not shown) is inserted respectively in the position that first component 20 is relative with three mating surfaces of second component 21, to arrange gap 25 between the parts in magnetic circuit, gap 25 is known air gap.Distance piece is preferably opaque nonmagnetic substance and forms, and this material has enough thermal resistances to avoid deterioration or distortion occur, and distance piece is preferably pottery and polymeric material, plastic or other material composition.In the present embodiment, winding is wrapped on center pillar 23, center pillar 23 is divided into the Part I and Part II that are positioned at air gap 25 left and right sides by the air gap 25 on center pillar 23, Part I is wound with the first winding 26, Part II is wound with the second winding 27, therefore the first winding 26 and the second winding 27 all avoid air gap 25 coiling on side column 22 and center pillar 23.
Figure 4 shows that the three-dimensional structure diagram of the magnet assembly related in the present embodiment, as can be seen from the figure, the winding of the present embodiment is spiral, be preferably the copper sheet coil of spiral, copper sheet spirals and is wound on magnetic core, particularly, the center of the copper sheet of spiral defines the space with a certain size internal diameter, the center pillar 23 of magnetic core inserts in this space, that is to say the copper sheet of spiral with equidistant around mode be wound on the center pillar 23 of magnetic core, air gap between each layer copper sheet is not less than the thickness of copper sheet, is convenient to distribute heat.Winding in the present embodiment is identical with embodiment one with winding coil winding method, therefore, repeats no more here.
In the present embodiment, due to two windings 26, 27 three the air gap coilings avoiding magnetic core, therefore, the magnetic induction line of winding can not walk around air gap, the eddy current loss caused because of magnetic flux can be reduced to minimum level, drastically increase efficiency, reduce caloric value, and the spiral coil spacing certain distance of winding is arranged with the air communication channel forming magnet assembly inside, distance between each layer line circle is not less than the thickness of coil, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.Meanwhile, air gap periphery defines the air channel of transformer or inductance inside, auxiliary transformer or inductance can dispel the heat, reduces caloric value further.
Embodiment three
Be illustrated in figure 5 the planar structure schematic diagram of the magnet assembly that the embodiment of the present invention three relates to, as can be seen from the figure, the present embodiment relates to magnet assembly 3 and comprises the magnetic core with an air gap 35 and the winding be coiled on magnetic core, winding is avoided air gap 35 and is wound on magnetic core, winding is formed by lattice coil coiling, each layer line circle of winding keeps at a certain distance away and arranges with the air communication channel forming magnet assembly inside, and the distance between each layer line circle is not less than the thickness of single layer coil.Concrete, in the present embodiment, the coil of winding is tabular, be equidistantly spaced to form certain gap between flat each layer line circle, this distance is not less than the thickness of single layer coil, and the thickness of planar coil is even, this gap defines the air communication channel of magnet assembly inside, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.
In the present embodiment, magnetic core is divided into symmetrical two parts, is respectively the first component 30 in left side and the second component 31 on right side, and the axisymmetrical of two parts in the middle of magnetic core is arranged, and visible, the magnetic core in the present embodiment is similarly symmetrical magnetic core.Air gap 35 is formed in the centre of symmetrical magnetic core, and winding comprises at least one first winding and at least one second winding, and at least one first winding and at least one second winding are wound on the both sides of symmetrical magnetic core respectively.In the present embodiment, magnetic core is similarly EE type magnetic core, and the structure of magnetic core is identical with embodiment one, comprises first component 30 and second component 31, and each parts have three mating surfaces.Relatively and contact with each other, the centre of center pillar 33 is provided with the air gap 35 of magnetic core, and air gap 35 can be offered by the mode of mill air gap equally for two side columns 32 that three mating surfaces form respectively magnetic core relatively and center pillar 33, two side columns 32.Center pillar 33 is divided into the Part I and Part II that are positioned at air gap 35 left and right sides by air gap 35, Part I is wound with the first winding 36, Part II is wound with the second winding 37, and therefore the first winding 36 and the second winding 37 all avoid air gap 35 coiling.Because magnetic core in the present embodiment is identical with embodiment one, here the structure of magnetic core is not being repeated.
Figure 6 shows that the three-dimensional structure diagram of the magnet assembly related in the present embodiment, as can be seen from the figure, the winding of the present embodiment is tabular, be preferably flat copper sheet coil, that is to say plane copper coin, plane copper coin spirals and is wound on magnetic core, particularly, in the present embodiment, first winding 36 and the second winding 37 are all kept at a certain distance away to be arranged side by side by multiple plane copper coin and form, the center of flat copper sheet coil defines the space with certain distance size, the shape in this space is square, being applicable to center pillar is hexahedral magnetic core, the center pillar 33 of magnetic core inserts in this space, that is to say flat copper sheet with equidistant around mode be wound on the center pillar 33 of magnetic core, air gap between each layer copper sheet is not less than the thickness of copper sheet, be convenient to distribute heat.In the scheme be more preferably, air gap between each layer tabular copper sheet is one times of the thickness of copper sheet, this air gap can either form the air communication channel of magnet assembly inside for heat radiation, and the volume of whole magnet assembly can not be caused again because of excesssive gap excessive.In the present embodiment magnetic core center pillar 33 for cross section be foursquare cylinder, the sectional area being not less than magnetic core center pillar 33 of flat copper sheet center gap, preferably, the size of flat copper sheet center gap is a bit larger tham the sectional area of magnetic core center pillar 33, namely between copper sheet and the center pillar 33 of magnetic core, also keep certain space, can better heat-radiation effect be made.
In addition, due to the setting that keeps at a certain distance away between the planar coil in the present invention, therefore, lack fixing between each layer line circle and support, the impact that coil is easily subject to air-flow or electric current produces vibration, therefore, in the present embodiment, between each layer line circle, be preferably provided with fixing viscose or support produce vibration to prevent coil, the method to set up of viscose can adopt the mode of a glue or other feasible modes.
Other technical characteristic is identical with embodiment one, repeats no more here.
The winding technique method of above-described magnet assembly is: the lattice coil of winding is avoided air gap 35 and kept at a certain distance away with the form of flat board and be wound on the center pillar 33 of magnetic core, this distance is not less than the thickness of coil, concrete, first winding 36 and the second winding 37 are formed by multilayer planar copperplate winding respectively, the multilayer planar copper coin of the first winding 36 center pillar 33 being wound on magnetic core that keeps at a certain distance away is positioned on the Part I of air gap 35 side, the multilayer planar copper coin of the second winding 37 center pillar 33 being wound on magnetic core that keeps at a certain distance away is positioned on the Part II of air gap 35 opposite side, spacing between each layer plane copper coin is not less than the thickness of individual layer plane copper coin, gap between each layer plane copper coin defines the air communication channel of magnet assembly inside, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.In the present embodiment, the spacing be preferably between plane copper coin is the thickness of plane copper coin, thus, can ensure the air communication channel forming core assembly inside, avoid again the volume of core assembly excessive.
In the present embodiment, due to two windings 36,37 avoid air gap 35 coiling, therefore, the magnetic induction line of winding can not walk around air gap 35, the eddy current loss caused because of magnetic flux can be reduced to minimum level, drastically increase efficiency, reduce caloric value, and the planar coil of winding keeps at a certain distance away, setting is with the air communication channel forming magnet assembly inside, and the distance between each layer line circle is not less than the thickness of coil, makes to have good air circulation between each layer line circle, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.Meanwhile, air gap periphery defines the air channel of transformer or inductance inside, auxiliary transformer or inductance can dispel the heat, reduces caloric value further.
Embodiment four
The planar structure schematic diagram of the magnet assembly that the embodiment of the present invention four shown in Fig. 7 relates to, as can be seen from the figure, the present embodiment relates to magnet assembly 4 and comprises the magnetic core with three air gaps 45 and the winding be coiled on magnetic core, winding is avoided air gap 45 and is wound on magnetic core, winding is formed by lattice coil coiling, each layer line circle of winding keeps at a certain distance away and arranges with the air communication channel forming magnet assembly inside, and the distance between each layer line circle is not less than the thickness of coil.Concrete, in the present embodiment, the coil of winding is in spiral shape, be equidistantly spaced between each layer line circle spiraled to form certain gap, this distance is not less than the thickness of every layer line circle, and the thickness of spiral coil is even, this gap defines the air communication channel of magnet assembly inside, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.
Magnetic core is divided into symmetrical two parts, is respectively the first component 40 in left side and the second component 41 on right side, and the axisymmetrical of two parts in the middle of magnetic core is arranged, and visible, the magnetic core in the present embodiment is same symmetrical magnetic core.Air gap 45 is formed in the centre of symmetrical magnetic core, and winding comprises at least one first winding and at least one second winding, and at least one first winding and at least one second winding are wound on the both sides of symmetrical magnetic core respectively.In the present embodiment, magnetic core is similarly EE type magnetic core, and the structure of magnetic core is identical with embodiment two, comprises first component 40 and second component 41, and each parts have three mating surfaces.The centre of two side columns 42 and center pillar 43, two side columns 42 and center pillar 43 that three mating surfaces form respectively magnetic core is relatively equipped with an air gap 45, and air gap 45 can be offered by the mode of cushion steam gap equally.Center pillar 43 is divided into the Part I and Part II that are positioned at air gap 45 left and right sides by the air gap 45 on center pillar 43, Part I is wound with the first winding 46, Part II is wound with the second winding 47, therefore the first winding 46 and the second winding 47 all avoid air gap 45 coiling.Because magnetic core in the present embodiment is identical with embodiment two, here the structure of magnetic core is not being repeated.
Figure 8 shows that the three-dimensional structure diagram of the magnet assembly related in the present embodiment, as can be seen from the figure, the winding of the present embodiment is similarly the copper sheet coil of spiral, with embodiment two unlike, winding in the present embodiment is the coiling of two-layer spiral copper sheet coils from parallel connection of coils, and two-layer copper sheet in parallel is spaced a distance to spiral and is wound on magnetic core.Particularly, the center of the copper sheet of spiral defines the space with a certain size internal diameter, and the center pillar 43 of magnetic core inserts in this space, that is to say spiral copper sheet in parallel with equidistant around mode be wound on the center pillar 43 of magnetic core.Two-layer copper sheet in parallel is divided into skin and internal layer, in winding process, the coiling simultaneously of two-layer copper sheet, the upper circle skin of copper sheet and next enclose the inner layer contacts of copper sheet, once analogize, therefore, the air gap between two-layer copper sheet in parallel is not less than the thickness that two-layer copper sheet stacks up, and is convenient to distribute heat.In the scheme be more preferably, air gap between two-layer copper sheet in parallel is one times of two-layer copper sheet superposition thickness, this air gap can either form the air communication channel of magnet assembly inside for heat radiation, and the volume of whole magnet assembly can not be caused again because of excesssive gap excessive.
Winding in the present embodiment adopts the coiling in parallel of two-layer spiral copper sheet, the coupling of the former secondary of magnet assembly 4 can be strengthened, in addition, in order to avoid disturbing and meeting corresponding safety requirement, insulator spacer (not shown) is also provided with between two windings, in the present embodiment, insulator spacer is preferably plastic plate, can certainly be insulation framework or insulating tape etc.
In addition, keep at a certain distance away between winding coil in parallel due to the spiral in the present invention setting, therefore, lack fixing between bridging coil and support, the impact that coil is easily subject to air-flow or electric current produces vibration, therefore, in the present embodiment, between bridging coil, be preferably provided with fixing viscose or support produce vibration to prevent coil, the method to set up of viscose can adopt the mode of a glue or other feasible modes.
The winding technique method of above-described magnet assembly is: the two-layer bridging coil of winding is avoided air gap 15 and kept at a certain distance away with the form of spiraling and be wound on the center pillar 13 of magnetic core, this distance is not less than the thickness after the superposition of two-layer coil, concrete, the two-layer coils from parallel connection of coils of the first winding 46 is also positioned on the Part I of air gap 45 side with the form of the spiraling center pillar 43 being wound on magnetic core that keeps at a certain distance away, the two-layer copper sheet coils from parallel connection of coils of the second winding 47 is also positioned on the Part II of air gap 45 opposite side with the form of the spiraling center pillar 43 being wound on magnetic core that keeps at a certain distance away, spacing between copper sheet coil in parallel is not less than the thickness of the coil after parallel connection, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.Meanwhile, air gap periphery defines the air channel of transformer or inductance inside, auxiliary transformer or inductance can dispel the heat, reduces caloric value further.In the present embodiment, the spacing be preferably between copper sheet coil in parallel is the thickness of copper sheet coil in parallel, thus, can ensure the air communication channel forming core assembly inside, avoid again the volume of core assembly excessive.
In the present embodiment, due to two windings 46, 47 avoid air gap 45 coiling, therefore, the magnetic induction line of winding can not walk around air gap 45, the eddy current loss caused because of magnetic flux can be reduced to minimum level, drastically increase efficiency, reduce caloric value, and the spiral coil spacing certain distance in parallel of winding is arranged with the air communication channel forming magnet assembly inside, distance between bridging coil is not less than the thickness of coil, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.Meanwhile, air gap periphery defines the air channel of transformer or inductance inside, auxiliary transformer or inductance can dispel the heat, reduces caloric value further.
Embodiment five
Figure 9 shows that the planar structure schematic diagram of the magnet assembly that the embodiment of the present invention five relates to, as can be seen from the figure, the present embodiment relates to magnet assembly 5 and comprises the magnetic core with an air gap 55 and the winding be coiled on magnetic core, winding is avoided air gap 55 and is wound on magnetic core, winding is formed by lattice coil coiling, each layer line circle of winding keeps at a certain distance away and arranges with the air communication channel forming magnet assembly inside, and the distance between each layer line circle is not less than the thickness of single layer coil.Concrete, in the present embodiment, the coil of winding is in spiral shape, be equidistantly spaced between each layer line circle spiraled to form certain gap, this distance is not less than the thickness of every layer line circle, and the thickness of spiral coil is even, this gap defines the air communication channel of magnet assembly inside, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.
Magnetic core is divided into symmetrical two parts, is respectively the first component 50 in left side and the second component 51 on right side.In the present embodiment, first component 50 has the shape similar with printer's letter " I ", and second component 51 has the shape similar with printer's letter " E ", and therefore, the magnetic core in the present embodiment is asymmetric magnetic core, and this asymmetric magnetic core is EI type magnetic core.Vertical mating surface on first component 50 is relative with the mating surface of three on second component 51, two mating surfaces wherein on second component 51 and the vertical mating surface close contact of first component 50, define two side columns 52 of magnetic core, another mating surface is relative with the vertical mating surface of first component 50, but do not contact, define the center pillar 53 of magnetic core, the side of the close first component 50 of center pillar 53 is provided with air gap 55, and air gap 55 can be offered by the mode of grinding air gap.Magnetic part 5 in the present embodiment is only provided with the first winding 56, first winding 56 and is wrapped in the side of center pillar 53 away from air gap 55, and the first winding 56 avoids air gap 15 coiling.
Figure 10 shows that the three-dimensional structure diagram of the magnet assembly related in the present embodiment, as can be seen from the figure, the winding of the present embodiment is spiral, be preferably the copper sheet coil of spiral, copper sheet spirals and is wound on magnetic core, particularly, the center of the copper sheet of spiral defines the space with a certain size internal diameter, the center pillar 53 of magnetic core inserts in this space, that is to say the copper sheet of spiral with equidistant around mode be wound on the center pillar 53 of magnetic core, air gap between each layer copper sheet is not less than the thickness of copper sheet, is convenient to distribute heat.Winding in the present embodiment is identical with embodiment one, therefore, repeats no more here.
The winding technique method of above-described magnet assembly is: the lattice coil of winding is avoided air gap 55 and kept at a certain distance away with the form of spiraling and be wound on the center pillar 13 of magnetic core, this distance is not less than the thickness of single layer coil, concrete, first winding 16 is formed by multiple layer of copper skin coil winding, the multiple layer of copper rubber-insulated wire circle of the first winding 16 keeps at a certain distance away with the form of spiraling the center pillar 13 that the is wound on magnetic core side away from air gap 15, spacing between each layer copper sheet coil is not less than the thickness of single layer coil, gap between each layer copper sheet defines the air communication channel of magnet assembly inside, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.In the present embodiment, the spacing be preferably between coil is the thickness of coil, thus, can ensure the air communication channel forming core assembly inside, avoid again the volume of core assembly excessive.
In the present embodiment, because winding 56 avoids air gap 15 coiling, therefore, the magnetic induction line of winding can not walk around air gap 55, the eddy current loss caused because of magnetic flux can be reduced to minimum level, drastically increase efficiency, reduce caloric value, and the spiral coil spacing certain distance of winding is arranged with the air communication channel forming magnet assembly inside, distance between each layer line circle is not less than the thickness of coil, make, between each layer line circle, there is good air circulation, increase area of dissipation, thus solve the heating serious problems of magnet assembly to a certain extent.Meanwhile, air gap periphery defines the air channel of transformer or inductance inside, auxiliary transformer or inductance can dispel the heat, reduces caloric value further.
It will be understood by those skilled in the art that above is only section Example of the present invention, a lot of distortion can also be done on the basis of above embodiment.Such as, the form of winding is not defined as the spiral or tabular mentioned in above embodiment, also can be other suitable forms, as long as can realize the air gap that winding can avoid magnetic core is wound on magnetic core, and each layer line circle of winding keeps at a certain distance away, setting is with the air communication channel forming magnet assembly inside, and the distance between each layer line circle is not less than the thickness of coil; In above embodiment, the winding on each parts is all provided with one, also can be set to the mode of multiple parallel connection or series connection; Magnetic core is not defined as the shape mentioned in above embodiment, symmetrical magnetic core can also be ER type magnetic core, asymmetric magnetic core can also be PQ type, PQI type etc., and the mating surface of two parts of magnetic core is not defined as three yet, can be set to more than three according to the shape of magnetic core; The material of winding is not defined as copper, can also be the material of aluminium, alloy or other good conductor.
It will be understood by those skilled in the art that; these are only the embodiment of optimum of the present invention; can be improved according to the above description or be converted, do not made the improvement made under the prerequisite of creative work and conversion and all should belong to the protection range of claims of the present invention.
Claims (10)
1. a magnet assembly, be applied in transformer or inductance, described magnet assembly comprises the magnetic core with at least one air gap and at least one winding be coiled on described magnetic core, it is characterized in that, described winding is avoided described air gap and is wound on described magnetic core, described winding is formed by lattice coil coiling, and each layer line circle of described winding keeps at a certain distance away and arranges with the air communication channel forming described magnet assembly inside, and described distance is not less than the thickness of single layer coil.
2. core assembly as claimed in claim 1, is characterized in that, described winding is the line bag of spiral coil or planar coil composition, and the spacing between each layer line circle of described spiral or between flat each layer line circle is greater than the thickness of described coil.
3. the core assembly as described in claim 1-2 any one, is characterized in that, is provided with fixing viscose or support and produces vibration to prevent described coil between described each layer line circle.
4. magnet assembly as claimed in claim 1, it is characterized in that, described magnetic core comprises the first component and second component that are oppositely arranged, described first component and second component are provided with at least three relative mating surfaces, in described at least three relative mating surfaces, the mating surface place being at least positioned at described magnetic core inside is provided with described air gap, and described air gap periphery defines the air channel of described magnet assembly inside.
5. magnet assembly as claimed in claim 4, it is characterized in that, described magnetic core is symmetrical magnetic core, described mating surface is positioned on the center line of described symmetrical magnetic core, described winding comprises at least one first winding and at least one second winding, described at least one first winding technique is positioned at the side of described air gap on described symmetrical magnetic core, and described at least one second winding technique is positioned at the opposite side of described air gap on described symmetrical magnetic core.
6. magnet assembly as claimed in claim 5, it is characterized in that, described symmetrical magnetic core is EE type magnetic core, described first component and second component are in " E " shape, the first component of described " E " shape is relative with the mating surface at second component two ends, form two side columns of described EE type magnetic core, the first component of described " E " shape is relative with the mating surface in the middle of second component, form the center pillar of described EE type magnetic core, described air gap is opened on described center pillar, and described center pillar is divided into the Part I and Part II that lay respectively at described air gap both sides, on the Part I that described at least one first winding and at least one second winding are wound on described center pillar respectively and Part II.
7. magnet assembly as claimed in claim 5, it is characterized in that, described symmetrical magnetic core is EE type magnetic core, described first component and second component are in " E " shape, the first component of described " E " shape is relative with the mating surface at second component two ends, form two side columns of described EE type magnetic core, the first component of described " E " shape is relative with the mating surface in the middle of second component, form the center pillar of described EE type magnetic core, described two side columns and described center pillar offer described air gap respectively, described at least one first winding and at least one second winding to be wound on respectively on described center pillar and to lay respectively at the both sides of air gap on described center pillar.
8. magnet assembly as claimed in claim 4, it is characterized in that, described magnetic core is asymmetric magnetic core, and described air gap is formed in the side of described asymmetric magnetic core inside, and described winding is wrapped in the opposite side away from described air gap of described asymmetric magnetic core inside.
9. magnet assembly as claimed in claim 8, it is characterized in that, described asymmetric magnetic core is EI type magnetic core, described first component is in " I " shape, described second component is in " E " shape, the first component of described " I " shape is relative with the mating surface at the second component two ends of " E " shape, form two side columns of described EI type magnetic core, the first component of described " I " shape is relative with the mating surface in the middle of the second component of " E " shape, form the center pillar of described EI type magnetic core, described air gap is opened in the side of described center pillar near described first component, described winding is wrapped in the opposite side away from described air gap of described center pillar.
10. the winding coil winding method of a magnet assembly, it is characterized in that, described magnet assembly comprises the magnetic core and at least one first winding be coiled on described magnetic core and at least one second winding with at least one air gap, described first winding and described second winding are formed by lattice coil coiling respectively, described magnetic core comprises the first component and second component that are oppositely arranged, described first component and second component are provided with at least three relative mating surfaces, in described at least three relative mating surfaces, the mating surface place being at least positioned at described magnetic core inside is provided with described air gap, described first component is relative with the mating surface at second component two ends, form two side columns of described magnetic core, described first component is relative with the mating surface in the middle of second component, form the center pillar of described magnetic core, described center pillar is divided into the Part I and Part II that lay respectively at described air gap both sides by described air gap, described method comprises:
The lattice coil of described first winding being avoided described air gap is positioned on the Part I of described air gap side with the form of spiraling or the independent dull and stereotyped form center pillar being wound on described magnetic core that keeps at a certain distance away, the lattice coil of described second winding is avoided described air gap to be positioned on the Part II of described air gap opposite side with the form of spiraling or the independent dull and stereotyped form center pillar being wound on described magnetic core that keeps at a certain distance away, described distance is not less than the thickness of single layer coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356965.4A CN104966604A (en) | 2014-07-24 | 2014-07-24 | Magnetic assembly and method for winding coils of winding thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356965.4A CN104966604A (en) | 2014-07-24 | 2014-07-24 | Magnetic assembly and method for winding coils of winding thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104966604A true CN104966604A (en) | 2015-10-07 |
Family
ID=54220629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410356965.4A Pending CN104966604A (en) | 2014-07-24 | 2014-07-24 | Magnetic assembly and method for winding coils of winding thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104966604A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118622A (en) * | 2015-10-15 | 2015-12-02 | 联想(北京)有限公司 | Electromagnetic element, inductance coil, transformer and switching mode power supply |
| CN107275040A (en) * | 2016-03-31 | 2017-10-20 | 全汉企业股份有限公司 | Magnetic element |
| CN107707125A (en) * | 2017-10-20 | 2018-02-16 | 四川莱福德科技有限公司 | Drive circuit and bridge-type resonance circuit |
| CN108022731A (en) * | 2016-10-28 | 2018-05-11 | 台达电子企业管理（上海）有限公司 | Coupling inductance and the VRM Voltage Regulator Module including coupling inductance |
| CN105118622B (en) * | 2015-10-15 | 2018-08-31 | 联想(北京)有限公司 | A kind of electromagnetic component, inductance coil, transformer and Switching Power Supply |
| US10242791B2 (en) | 2016-10-28 | 2019-03-26 | Delta Electronics (Shanghai) Co., Ltd | Coupled-inductor module and voltage regulating module comprising the same |
| US10438736B2 (en) | 2016-10-28 | 2019-10-08 | Delta Electronics (Shanghai) Co., Ltd. | Magnetic component and manufacturing method thereof |
| CN110942906A (en) * | 2019-12-17 | 2020-03-31 | 石家庄通合电子科技股份有限公司 | High-power air-cooled module transformer and design method thereof |
| US10643782B2 (en) | 2016-10-28 | 2020-05-05 | Delta Electronics (Shanghai) Co., Ltd. | Magnetic component and power module |
| CN111699535A (en) * | 2018-10-22 | 2020-09-22 | 沃思电子埃索斯有限责任两合公司 | Core for an inductive component and inductive component |
| CN112233886A (en) * | 2020-10-16 | 2021-01-15 | 重庆美的制冷设备有限公司 | Magnetic core, magnetic integrated device, circuit board and manufacturing method of magnetic integrated device |
| CN113871153A (en) * | 2020-06-30 | 2021-12-31 | 沙夫纳 Emv 股份公司 | Magnetic housing and magnetic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000357616A (en) * | 1999-06-15 | 2000-12-26 | Matsushita Electric Ind Co Ltd | Step-up transformer for driving magnetron |
| CN2783498Y (en) * | 2005-01-08 | 2006-05-24 | 艾默生网络能源系统有限公司 | Resonance inductor |
| CN201196901Y (en) * | 2008-04-30 | 2009-02-18 | 台龙电子股份有限公司 | Winding structure for transformer |
| CN202839236U (en) * | 2012-09-29 | 2013-03-27 | 宁波远东照明有限公司 | Drive transformer used for self-oscillating half-bridge resonant converter |
-
2014
- 2014-07-24 CN CN201410356965.4A patent/CN104966604A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000357616A (en) * | 1999-06-15 | 2000-12-26 | Matsushita Electric Ind Co Ltd | Step-up transformer for driving magnetron |
| CN2783498Y (en) * | 2005-01-08 | 2006-05-24 | 艾默生网络能源系统有限公司 | Resonance inductor |
| CN201196901Y (en) * | 2008-04-30 | 2009-02-18 | 台龙电子股份有限公司 | Winding structure for transformer |
| CN202839236U (en) * | 2012-09-29 | 2013-03-27 | 宁波远东照明有限公司 | Drive transformer used for self-oscillating half-bridge resonant converter |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118622A (en) * | 2015-10-15 | 2015-12-02 | 联想(北京)有限公司 | Electromagnetic element, inductance coil, transformer and switching mode power supply |
| CN105118622B (en) * | 2015-10-15 | 2018-08-31 | 联想(北京)有限公司 | A kind of electromagnetic component, inductance coil, transformer and Switching Power Supply |
| CN107275040A (en) * | 2016-03-31 | 2017-10-20 | 全汉企业股份有限公司 | Magnetic element |
| CN108022731A (en) * | 2016-10-28 | 2018-05-11 | 台达电子企业管理（上海）有限公司 | Coupling inductance and the VRM Voltage Regulator Module including coupling inductance |
| US10242791B2 (en) | 2016-10-28 | 2019-03-26 | Delta Electronics (Shanghai) Co., Ltd | Coupled-inductor module and voltage regulating module comprising the same |
| US10438736B2 (en) | 2016-10-28 | 2019-10-08 | Delta Electronics (Shanghai) Co., Ltd. | Magnetic component and manufacturing method thereof |
| US10643782B2 (en) | 2016-10-28 | 2020-05-05 | Delta Electronics (Shanghai) Co., Ltd. | Magnetic component and power module |
| CN107707125A (en) * | 2017-10-20 | 2018-02-16 | 四川莱福德科技有限公司 | Drive circuit and bridge-type resonance circuit |
| CN111699535A (en) * | 2018-10-22 | 2020-09-22 | 沃思电子埃索斯有限责任两合公司 | Core for an inductive component and inductive component |
| CN110942906A (en) * | 2019-12-17 | 2020-03-31 | 石家庄通合电子科技股份有限公司 | High-power air-cooled module transformer and design method thereof |
| CN113871153A (en) * | 2020-06-30 | 2021-12-31 | 沙夫纳 Emv 股份公司 | Magnetic housing and magnetic device |
| CN112233886A (en) * | 2020-10-16 | 2021-01-15 | 重庆美的制冷设备有限公司 | Magnetic core, magnetic integrated device, circuit board and manufacturing method of magnetic integrated device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104966604A (en) | Magnetic assembly and method for winding coils of winding thereof | |
| US20140266535A1 (en) | Low loss inductor with offset gap and windings | |
| CN104425112B (en) | Transformer | |
| US20140062635A1 (en) | Magnetic core for magnetic component with winding, containing improved means of cooling | |
| CN204010998U (en) | A kind of magnet assembly | |
| CN203787241U (en) | Radio-frequency reactor | |
| CN204332636U (en) | A kind of magnet assembly | |
| CN205177580U (en) | Llc transformer | |
| CN104376981B (en) | A kind of switching mode power supply transformer combined magnet core | |
| CN108666067B (en) | High efficiency integrated form LLC resonant transformer | |
| CN103515067A (en) | High-frequency and high-power transformer for large adjustable power supply | |
| JP4838842B2 (en) | Transformer having laminated winding structure | |
| CN104021923B (en) | Coil structure and power transformer | |
| TWI584314B (en) | Magnetic assembly | |
| CN204155718U (en) | A kind of switching mode power supply transformer combined magnet core | |
| CN104737247A (en) | Cooling device | |
| CN102360806A (en) | Zigzag winding | |
| CN203895243U (en) | Coil structure and power transformer | |
| CN202678063U (en) | Amorphous alloy transformer coil structure | |
| CN214476879U (en) | High-performance electronic transformer adopting layered stacking mode | |
| CN216749574U (en) | Magnetic integrated LLC transformer suitable for low-voltage input | |
| CN208873591U (en) | A kind of big single-phase inductance of heat dissipation area EI type | |
| CN104282418A (en) | Winding assembly for transformer device and transformer device | |
| CN204668076U (en) | Common-mode inductor | |
| KR100633425B1 (en) | Transformer Having Multi-Layered Winding Structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |
|
| RJ01 | Rejection of invention patent application after publication |