CN103680848A - High-and-low frequency transformer - Google Patents

High-and-low frequency transformer Download PDF

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CN103680848A
CN103680848A CN201310748464.6A CN201310748464A CN103680848A CN 103680848 A CN103680848 A CN 103680848A CN 201310748464 A CN201310748464 A CN 201310748464A CN 103680848 A CN103680848 A CN 103680848A
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stem
frequency transformer
iron core
low
low frequency
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CN103680848B (en
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周涛
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WUHAN CHENYANG ELECTRONIC TECHNOLOGY Co Ltd
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Abstract

The invention discloses a high-and-low frequency transformer. The high-and-low frequency transformer comprises a base plate, a shell and an iron core. The iron core is arranged on the base plate, comprises an annular magnet yoke and a stem and is covered with the shell. A stem insertion hole is formed in the top of the shell and corresponds to an inner hole of the annular magnet yoke. A plurality of coils are wound around the outer side of the stem and isolated from one another through insulating tape. The stem wound by the coils is arranged in the stem insertion hole in a penetrating mode. The two end faces of the stem are in butt joint with the inner side wall of the annular magnet yoke. The stem is formed by overlaying NiCuZn nanocrystalline laminated sheets, and the annular magnet yoke is formed by overlaying iron-based amorphous alloy laminated sheets. The high-and-low frequency transformer has the advantages of being small in size, clear in structure, reasonable in material selection, high in magnetic conductivity, good in temperature characteristic, high in reliability and the like. The iron core of the high-and-low frequency transformer is formed by overlaying multiple types of materials and is a soft magnet low in power consumption and resistant to electromagnetic interference. The high-and-low frequency transformer can well overcome defects of an existing product, improve power delivery efficiency and reduce energy loss.

Description

Low-and high-frequency transformer
Technical field
The present invention relates to a kind of electronic component, especially relate to a kind of low-and high-frequency transformer.
Background technology
Low-and high-frequency transformer can transmit the power of various signals, become the important component part of modern electronic equipment, being of wide application of low-and high-frequency transformer is general, and some is used for transmitting the power of simple signal, and some is used for transmitting the power of narrow frequency signal and the power of broadband signal.Along with the development of Switching Power Supply, for low-and high-frequency transformer provides more wide development space.
The iron core of low-and high-frequency transformer is generally that silicon steel sheet or ferrite are made, although price comparison is cheap, has larger magnetic circuit loss and leakage field, and iron loss is high, and heating is large, and its scope of application and life-span are affected.
Summary of the invention
The object of the invention is to provide a kind of low-and high-frequency transformer, to solve existing low-and high-frequency transformer core material, is mostly silicon steel sheet or ferrite, has that larger magnetic circuit loss, iron loss are high, the technical problem such as large, fragile of generating heat.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of low-and high-frequency transformer, comprises base plate, shell, iron core; On described base plate, be provided with iron core, iron core comprises annular yoke and stem stem, described shell covers iron core, cover top portion is provided with stem stem jack, this stem stem jack is corresponding with annular yoke endoporus, and described stem stem outside is wound with a plurality of coils, between adjacent windings, by insulating cement belt, separates, the described stem stem that is wound with coil is set in stem stem jack, and its stem stem both ends of the surface are docked with the sidewall of annular yoke endoporus; Described stem stem is to be formed by stacking by the brilliant lamination of NiCuZn ferrite nano, and annular yoke is to be formed by stacking by Fe-based amorphous alloy lamination, and annular yoke lateral wall is coated with insulation glue-line.
As preferably, described overhang is connected with the pin of base plate bottom respectively.
As preferably, the brilliant lamination of described NiCuZn ferrite nano adopts following methods preparation: in the ratio of Ni0.3, Cu0.13, Zn0.56, Fe2.01, add distilled water to be configured to the metal ion solution of 1mol/L ferrous sulfate, zinc nitrate, nickel nitrate, copper nitrate, solution is heated to 80 ℃ and constantly stirring, take a certain amount of ammonium oxalate and be configured to 2mol/L solution as precipitation reagent, then add the ethylene glycol of ammonium oxalate solution weight 1%, metal ion solution in stirring is splashed in precipitant solution, titration finishes rear maintenance temperature and stirs 1 hour, make it abundant reaction, after there are a large amount of precipitations, stop titration, then ageing is 2 hours, finally solution is cooled to room temperature, with deionized water and absolute ethanol washing repeatedly, put into after oven drying, obtain NiCuZn ferrite presoma, then presoma is risen to 180 ℃ by room temperature, programming rate is 10 ℃/min, be incubated 10 hours, then by 180 ℃, be warming up to 800 ℃, programming rate is 30 ℃/min, temperature retention time is 150min, last air cooling to room temperature is pulverized, obtain nanometer crystalline Ni CuZn ferrite powder, be pressed into sheet and obtain the brilliant lamination of NiCuZn ferrite nano in 1200 ℃ of sintering.
As preferably, described Fe-based amorphous alloy lamination is to be fastened and form up and down by two C font assemblies.
As preferably, described coil is wrapped with insulating cement belt.
The present invention have volume little, consume energy low, frequency range is wide, magnetic permeability is high, good temp characteristic, high reliability.Its iron core is formed by stacking by the lamination of various material, it is the soft magnetic bodies of a kind of low-power consumption, anti-electromagnetic interference, the brilliant lamination magnetic permeability of NiCuZn ferrite nano is very high, Fe-based amorphous alloy lamination magnetic is strong, iron loss is extremely low, and low-and high-frequency transformer of the present invention can finely improve the deficiency of existing product, improves power delivery efficiency, reduce energy loss, improve transformer useful life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is that the A-A of Fig. 2 is to cutaway view;
Fig. 4 is the structural representation of iron core;
Fig. 5 is the structural representation of base plate and shell;
Fig. 6 is the left view of Fig. 5.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in further detail.
Fig. 1 is structural representation of the present invention, and Fig. 2 is the left view of Fig. 1, Fig. 3 be the A-A of Fig. 2 to cutaway view, Fig. 4 is the structural representation of iron core, Fig. 5 is the structural representation of base plate and shell, Fig. 6 is the left view of Fig. 5.
From respectively scheming above, this low-and high-frequency transformer, comprises base plate 1, shell 2, iron core 3 etc.Its shell 2 tops are provided with stem stem jack 21, are provided with iron core 3 on base plate 1, and shell 2 covers iron core 3.
Iron core 3 comprises annular yoke 4 and stem stem 5, stem stem jack 21 is corresponding with annular yoke 4 endoporus 33, stem stem 5 is to be formed by stacking by the brilliant lamination of NiCuZn ferrite nano, stem stem 5 outsides are wound with a plurality of coils 6, between adjacent windings 6, by insulating cement belt 7, separate the outer insulating cement belt 7 that is also enclosed with of coil 6.With coil 6 stem stems 5 are whole, be set in stem stem jack 21, its stem stem 5 both ends of the surface are docked with the sidewall of annular yoke 4 endoporus 33, are convenient to so very much the installation of stem stem 5 and coil thereof.
Annular yoke 4 is to be formed by stacking by Fe-based amorphous alloy lamination, and Fe-based amorphous alloy lamination is fastened and forms up and down by two C font assemblies 41 again, and annular yoke 4 lateral walls are coated with insulation glue-line 42.
The end of each coil 6 is connected with the pin 8 of base plate 1 bottom respectively.
Fe-based amorphous alloy magnetic lamination is made with iron-base amorphous alloy material.Fe-based amorphous alloy or be called metal glass, it is a kind of new material that 20 century 70s come out, to utilize chilling technique, by molten steel one-shot forming, be that thickness is the strip of 30 microns, the solid alloy obtaining (strip) is to be different from the regularly arranged crystal structure of cold rolled silicon steel material Atom, the non-crystal structure of its atom of this alloy in random arrangement, makes it have narrow B-H loop just, has high magnetic conductivity and low-loss feature.
The brilliant lamination of described NiCuZn ferrite nano adopts following methods preparation: in the ratio of Ni0.3, Cu0.13, Zn0.56, Fe2.01, add distilled water to be configured to the metal ion solution of 1mol/L ferrous sulfate, zinc nitrate, nickel nitrate, copper nitrate, solution is heated to 80 ℃ and constantly stirring, take a certain amount of ammonium oxalate and be configured to 2mol/L solution as precipitation reagent, then add the ethylene glycol of ammonium oxalate solution weight 1%, metal ion solution in stirring is splashed in precipitant solution, titration finishes rear maintenance temperature and stirs 1 hour, make it abundant reaction, after there are a large amount of precipitations, stop titration, then ageing is 2 hours, finally solution is cooled to room temperature, with deionized water and absolute ethanol washing repeatedly, put into after oven drying, obtain NiCuZn ferrite presoma, then presoma is risen to 180 ℃ by room temperature, programming rate is 10 ℃/min, be incubated 10 hours, then by 180 ℃, be warming up to 800 ℃, programming rate is 30 ℃/min, temperature retention time is 150min, last air cooling to room temperature is pulverized, obtain nanometer crystalline Ni CuZn ferrite powder, be pressed into sheet and obtain the brilliant lamination of NiCuZn ferrite nano in 1200 ℃ of sintering.
Following table is the Character Comparison of each component magnetic property of low-and high-frequency transformer core and existing silicon sheet core:
Table 1 iron core of the present invention and the contrast of silicon sheet core magnetic property
Figure 2013107484646100002DEST_PATH_IMAGE001
Known by data in table, the iron core that the present invention adopts nanometer crystalline Ni CuZn ferritic alloy, Fe-based amorphous alloy composite material to prepare, its every magnetic property is all better than existing ordinary silicon steel plate iron core.
Finally, it should be pointed out that above embodiment is only the more representational example of the present invention.Obviously, the invention is not restricted to above-mentioned embodiment, can also have many distortion.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all should think and belong to protection scope of the present invention.

Claims (5)

1. a low-and high-frequency transformer, comprises base plate, shell, iron core; It is characterized in that being provided with iron core on described base plate, iron core comprises annular yoke and stem stem, described shell covers iron core, cover top portion is provided with stem stem jack, this stem stem jack is corresponding with annular yoke endoporus, and described stem stem outside is wound with a plurality of coils, between adjacent windings, by insulating cement belt, separates, the described stem stem that is wound with coil is set in stem stem jack, and its stem stem both ends of the surface are docked with the sidewall of annular yoke endoporus; Described stem stem is to be formed by stacking by the brilliant lamination of NiCuZn ferrite nano, and annular yoke is to be formed by stacking by Fe-based amorphous alloy lamination, and annular yoke lateral wall is coated with insulation glue-line.
2. low-and high-frequency transformer according to claim 1, is characterized in that described overhang is connected with the pin of base plate bottom respectively.
3. low-and high-frequency transformer according to claim 1, it is characterized in that the brilliant lamination of described NiCuZn ferrite nano adopts following methods preparation: in the ratio of Ni0.3, Cu0.13, Zn0.56, Fe2.01, add distilled water to be configured to the metal ion solution of 1mol/L ferrous sulfate, zinc nitrate, nickel nitrate, copper nitrate, solution is heated to 80 ℃ and constantly stirring, take a certain amount of ammonium oxalate and be configured to 2mol/L solution as precipitation reagent, then add the ethylene glycol of ammonium oxalate solution weight 1%, metal ion solution in stirring is splashed in precipitant solution, titration finishes rear maintenance temperature and stirs 1 hour, make it abundant reaction, after there are a large amount of precipitations, stop titration, then ageing is 2 hours, finally solution is cooled to room temperature, with deionized water and absolute ethanol washing repeatedly, put into after oven drying, obtain NiCuZn ferrite presoma, then presoma is risen to 180 ℃ by room temperature, programming rate is 10 ℃/min, be incubated 10 hours, then by 180 ℃, be warming up to 800 ℃, programming rate is 30 ℃/min, temperature retention time is 150min, last air cooling to room temperature is pulverized, obtain nanometer crystalline Ni CuZn ferrite powder, be pressed into sheet and obtain the brilliant lamination of NiCuZn ferrite nano in 1200 ℃ of sintering.
4. low-and high-frequency transformer according to claim 1 and 2, is characterized in that described Fe-based amorphous alloy lamination is to be fastened and form up and down by two C font assemblies.
5. low-and high-frequency transformer according to claim 1 and 2, is characterized in that described coil is wrapped with insulating cement belt.
CN201310748464.6A 2013-12-31 2013-12-31 High-and-low frequency transformer Active CN103680848B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2993675A2 (en) 2014-09-02 2016-03-09 Schaffner Emv Ag Filter component with windingless magnetic toroidal core

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5731666A (en) * 1996-03-08 1998-03-24 Magnetek Inc. Integrated-magnetic filter having a lossy shunt
CN1631839A (en) * 2004-03-11 2005-06-29 横店集团东磁有限公司 Low-temperature sintered NiCuZn ferrite material and its preparation method
JP2007273725A (en) * 2006-03-31 2007-10-18 Murata Mfg Co Ltd Magnetic substance, method of manufacturing magnetic substance, winding coil, and method of manufacturing winding coil
CN201112063Y (en) * 2007-08-25 2008-09-10 青岛云路电气有限公司 Reactor
CN102231317A (en) * 2011-04-14 2011-11-02 东莞市铭科电子有限公司 Power factor correction (PFC) inductor for computer power supply
CN103107000A (en) * 2011-11-15 2013-05-15 瑞力盟数控技术(常州)有限公司 Electric reactor
CN203013486U (en) * 2012-11-20 2013-06-19 绵阳普思电子有限公司 Micro flyback transformer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5731666A (en) * 1996-03-08 1998-03-24 Magnetek Inc. Integrated-magnetic filter having a lossy shunt
CN1631839A (en) * 2004-03-11 2005-06-29 横店集团东磁有限公司 Low-temperature sintered NiCuZn ferrite material and its preparation method
JP2007273725A (en) * 2006-03-31 2007-10-18 Murata Mfg Co Ltd Magnetic substance, method of manufacturing magnetic substance, winding coil, and method of manufacturing winding coil
CN201112063Y (en) * 2007-08-25 2008-09-10 青岛云路电气有限公司 Reactor
CN102231317A (en) * 2011-04-14 2011-11-02 东莞市铭科电子有限公司 Power factor correction (PFC) inductor for computer power supply
CN103107000A (en) * 2011-11-15 2013-05-15 瑞力盟数控技术(常州)有限公司 Electric reactor
CN203013486U (en) * 2012-11-20 2013-06-19 绵阳普思电子有限公司 Micro flyback transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2993675A2 (en) 2014-09-02 2016-03-09 Schaffner Emv Ag Filter component with windingless magnetic toroidal core
US9866192B2 (en) 2014-09-02 2018-01-09 Schaffner Emv Ag Filter component with windingless magnetic toroidal core

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