A kind of high power DC high pressure generator intermediate-frequency transformer
The utility model relates to transformer technology fields, and in particular to a kind of high power DC high pressure generator intermediate frequency transformation
Domestic only intermediate-frequency transformer ferrite magnetic die output power is all smaller at present, the magnetic core one as power
As be manganese-zinc ferrite core, the power of largest domestic is also not more than 2 kilowatts at present, and does DC break down voltage to water-cooled generator
The contravariant transformer power of high voltage direct current generator need 30 kilowatts or more；To the high direct voltage hair of DC transmission line road
Raw device specification maximum has a 1500kV-40mA, the general 4kHz-50kHz of transformer driving frequency, output capacity reached 60 kilowatts with
On, due to driving frequency height, the hard magnetic materials such as silicon steel sheet are just not suitable as the magnetic core of intermediate-frequency transformer, and soft magnetic materials does not have yet
There is the FERRITE CORE of so large capacity, in the case, is badly in need of a kind of 2-60 kilowatts of output power, driving frequency 4kHz-
The FERRITE CORE of 50kHz is just able to satisfy the demand of frequency high-tension transformer among the above, and existing magnetic core window area is fixed,
The size of magnetic core window area can not be adjusted.
Utility model content
The utility model embodiment is designed to provide a kind of high power DC high pressure generator intermediate-frequency transformer, to
It solves the problems, such as existing not adjusting magnetic core window size.
To achieve the above object, the technical solution of the utility model embodiment are as follows:
A kind of high power DC high pressure generator intermediate-frequency transformer, including FERRITE CORE and coil, the ferrite
Magnetic core is made of upper strip magnetic core, lower strip magnetic core, mediate cylindrical magnetic core, and coil is by low pressure winding, high-voltage winding, intermediate screen
Cover the fixed insulating support composition of layer, intermediate insulating layer, overhang insulation layer, insulation framework, coil；FERRITE CORE and insulating support
Connection, coil are mounted on iron oxygen magnetic core.
The utility model embodiment is further arranged to: the upper strip magnetic core, lower strip magnetic core and mediate cylindrical magnetic
Core combines to form " mouth " font or " day " font.
Through the above technical solutions, needs of the FERRITE CORE according to watt level, it can be by strip magnetic core and cylinder
Magnetic core is freely combined, and can be combined into " mouth " font and two kinds of patterns of " day " font." mouth " font magnetic core up and down each one
Strip magnetic core, each two cylinder shape magnetic cores in left and right are freely assembled into " mouth " font magnetic core, can also be according to transformer
The needs of output power size, while increasing and decreasing the quantity of the right and left cylinder shape magnetic core, making the right and left respectively becomes one, three
Only, four etc., the magnetic core window area to combine can also increase and decrease therewith, make up to the requirement of output power." day " word
Each strip magnetic core of shape magnetic core upper, middle and lower, upper left, lower-left, upper right, each one, two or more cylindrical magnetic of inferior right
Core freely forms different size of magnetic core.Simultaneously in order to by the thinner of output power point, FERRITE CORE up and down or it is upper in
Lower strip magnetic core is also made into two kinds of different magnetic cun, and cylinder shape magnetic core overall diameter is also equal with the width of strip magnetic core respectively,
It is allowed to be combined together in use, either " mouth " shape still " day " shape FERRITE CORE, in entire magnetic circuit middle section, product is everywhere
It is equal.When FERRITE CORE is used for more high-power, for example intermediate-frequency transformer output power is greater than 10 kilowatt hours, is freely combined
" mouth " font and " day " font magnetic core be not able to satisfy output capacity, several secondary " day " font magnetic cores can be connected in parallel on one at this time
It rises and uses, further increase the power of intermediate-frequency transformer, meet the requirement that larger capacity intermediate-frequency transformer uses.
The utility model embodiment is further arranged to: the FERRITE CORE use MnZn ferrite material, it is described in
Between the one side center that is located remotely from each other of cylindrical body magnetic core offer fixed circular hole.
The utility model embodiment is further arranged to: the coil is made of high-voltage winding, low pressure winding, shielded layer；
Low pressure winding is wound in insulation framework, and low pressure winding conducting wire both ends add with diameter of wire uniform thickness cable paper as overhang insulation, low
It presses winding after complete, adds around shielded layer, and drawn and be grounded with conducting wire, cable paper insulation, shielding are powered between shielded layer and low pressure winding
On layer plus around high-voltage winding, high-voltage winding interlayer is powered on cable paper insulation, and high-voltage winding both ends add and diameter of wire uniform thickness cable paper
As overhang insulation, high-voltage winding is around complete rear high-voltage line of drawing as high-voltage output end.
The utility model embodiment is further arranged to: when the FERRITE CORE is " mouth " font, a coil is only filled,
When the FERRITE CORE is " day " font, " day " font respectively fills a coil up and down, and two coil parameters are identical, is in parallel defeated
Through the above technical solutions, when the FERRITE CORE is that more secondary " day " font magnetic core parallel connections export together, winding
In magnetic core central location, magnetic core surrounds winding, fixes insulating support added with coil in high-voltage winding and magnetic core adjacent at this time,
For fix winding and with the effect of magnetic core isolation.
The utility model embodiment is further arranged to: the FERRITE CORE is more secondary " day " font magnetic core parallel connection groups
At winding surrounds winding in magnetic core central location, magnetic core, and high-voltage winding and magnetic core adjacent are equipped with the fixed insulation branch of coil
The utility model embodiment is further arranged to: high power DC high pressure generator intermediate-frequency transformer is fixed on metal
In drum, transformer oil is housed in drum.
The utility model embodiment has the advantages that
1, the magnetic core of intermediate-frequency transformer is ferrite MnZn magnetic core, the use modular construction of ferrite MnZn magnetic core creativeness
Design, magnetic core window area can be freely combined to obtain magnetic core similar in required power, can be by intermediate frequency by the way of taking wood
The magnetic core of transformer is combined into the structure of " mouth " font or " day " font or more secondary " day " font parallel connections, meets intermediate-frequency transformer from 2
Kilowatt to 60 kilowatts of so broad power bands needs；
2, available different shape, different structure, different capacity intermediate-frequency transformer, be applicable in 2 kilowatts to 60 kilowatts
And more powerful intermediate-frequency transformer uses；
3, ferrite core structure in the market is fixed, and window area is small, magnetic core window area is fixed, magnetic core output power
It is small, and the utility model solves the problems, such as that intermediate-frequency transformer output power is no more than 2 kilowatts, and according to free group of different capacity
Magnetic core is closed, modular construction design concept meets the needs of actual use well；
4, intermediate-frequency transformer output power is cooling using air less than 2 kilowatt hours, and output power uses after being greater than 2 kilowatts to be become
Depressor oil is small as cooling and megohmite insulant, good insulation preformance, partial discharge quantity.
Detailed description of the invention
Fig. 1 is elliptical cylinder body magnetic core main view；
Fig. 2 is elliptical cylinder body magnetic core left view；
Fig. 3 is elliptical cylinder body magnetic core top view；
Fig. 4 is strip magnetic core main view；
Fig. 5 is strip magnetic core left view；
Fig. 6 is strip magnetic core top view；
Fig. 7 is strip magnetic core perspective view；
Fig. 8 is the perspective view of stud core structure；
Fig. 9 is the main view of stud magnetic core；
Figure 10 is the left view of stud magnetic core；
Figure 11 is the top view of stud magnetic core；
Figure 12 is the structural schematic diagram of the three secondary stud magnetic core parallel connections used；
Figure 13 is the structure top view of the three secondary stud magnetic core parallel connections used.
Figure 14 is the electrical schematic diagram of two kinds of different transformers；
Figure 15 is the main view of square shape magnetic core；
Figure 16 is the top view of square shape magnetic core；
Figure 17 is the main view of another stud magnetic core；
Figure 18 is the top view of another stud magnetic core.
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
This programme for ease of description, " upper " hereinafter, " under ", " left side ", " right side " be to be with the view direction in attached drawing
The relative direction of referential.
With reference to Figure 12 and Figure 13, the utility model discloses a kind of big function used in parallel using three secondary " day " font magnetic cores
Rate medium-frequency high-voltage transformer, high-power medium-frequency high-voltage transformer include: strip FERRITE CORE 3, mediate cylindrical magnetic up and down
Core 7, mediate cylindrical magnetic core 8, mediate cylindrical magnetic core 9, mediate cylindrical magnetic core 10, magnetic core fixation hole 1, low pressure winding 5, height
Pressure winding 4, middle shield 11, end turn insulating layer 12, end turn insulating layer 13, winding insulation skeleton 6, coil are fixed
Upper lower insulation support 2 forms.
The FERRITE CORE of strip up and down 3, mediate cylindrical magnetic core 7, mediate cylindrical magnetic core 8, mediate cylindrical magnetic core
9, mediate cylindrical magnetic core 10 is combined into " day " font magnetic core together, and single " day " font magnetic core sees reference Fig. 1 to Fig. 2, in Fig. 8
Have three strip FERRITE COREs 3, respectively there are four mediate cylindrical magnetic cores 7 for left and right, but do not represent can only there are four.
Different according to intermediate-frequency transformer capacity, the quantity of the proportional increase and decrease mediate cylindrical magnetic core 7 of the right and left reaches
The purpose changed window area, reduce volume and transformer capacity.
With reference to Fig. 8 to Figure 11, the utility model discloses a kind of high-power medium-frequency high-voltage changes using " day " character form structure
Depressor composite structure form, high-power medium-frequency high-voltage transformer include:
Upper ellipse magnetic core 3 in Fig. 8, cylinder shape magnetic core 9, cylindrical magnet 10, cylinder shape magnetic core 7, cylinder shape magnetic core 8,
Lower ellipse magnetic core 3, middle oval magnetic core 3 form.
Upper, middle and lower strip FERRITE CORE 3 be identical oval strip magnetic core, on the ellipse strip magnetic core
Be open fixed circular hole 1, facilitates fixed whole secondary magnetic core, cylinder shape magnetic core 9, cylindrical magnet 10, cylinder shape magnetic core 7, cylindrical magnetic
Also circular hole identical with strip FERRITE CORE 3 is provided among core 8, the effect of the structure fixation for whole picture magnetic core.Fig. 8 extremely schemes
" day " character form structure in 11 is composed of two kinds of elements of Fig. 1 to Fig. 3 and Fig. 4 to Fig. 7, their electrical schematic diagram is figure
The T2 on the right in 14, " * " in Figure 14 on T2 figure are transformer Same Name of Ends, (can also be with comprising an input winding 4 in Figure 14
Two winding parallels are one), two output windings: being that T2 magnetic core 5 can in output winding 6 and output 7,4 Figure 14 of winding respectively
To be used as magnetic core of transformer using structure chart shown in Figure 12 and Figure 13 (three secondary stud magnetic cores are in parallel), can also using Figure 17 with
Structure chart is as magnetic core of transformer shown in Figure 18.A secondary stud or three width or how secondary in parallel are specifically selected, by transformer
Required power decision, the purpose of this patent more secondary stud magnetic core limitations without limitation.
With reference to Figure 15 and Figure 16, the utility model discloses a kind of high-power medium-frequency high-voltage changes using " mouth " character form structure
Depressor composite structure form, is made of coil 1 and magnetic core 2, and coil 1 includes input winding and output winding, electrical principle
Figure refers to T1 shown in the left side Figure 14, and T1 shown in the left side Figure 14 includes input winding 3, output winding 2,1 three parts group of magnetic core
At usually 2kw or so power transformer is used.It is more powerful or when needing voltage more steady, using shown in Figure 12 and Figure 13
Stud structure, output winding use symmetric mode, the direct current output of smaller ripple can be obtained after more voltage multiplying rectifiers.
With reference to Figure 12, Figure 13 and Figure 17 and Figure 18, structural style and the above phase of high-power medium-frequency high-voltage transformer
It is dual-polarization radar with place, using the winding configuration of T1 transformer in Figure 14 when small-power, is exported using a line packet；Middle function
Rate and it is high-power when using T2 transformer in Figure 14 winding configuration, exported using two line packets.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.