CN209561151U - Iron core reactor - Google Patents

Abstract

The utility model discloses a kind of iron core reactor, including iron core, three slots are formed on the iron core, it is placed with coil respectively in each slot, the coil is coiled into cake formula, generally uses flat winding wire, is continuously coiled by two disk-type winding units arranged side by side, insulating layer is equipped between the iron core and coil, to guarantee coil to casing insulation.The iron core reactor is mainly used for current limliting, especially in the circuit for having higher hamonic wave, for inhibiting higher harmonic current, it is mainly used in the alternating-current actuating system of cross-straight-intersection, also it is used for PWM alternating-current actuating system, input reactance device is such as used as, then can reduce interference of the triple-frequency harmonics to public electric wire net.

Description

Iron core reactor

Technical field

The utility model relates to electrical equipment, specially a kind of iron core reactor.

Background technique

Existing reactor type is more, configurations, such as a kind of reactor with T-shaped core, its main flux is through non-magnetic The gap-gas segregating ring of material and the magnetic cake alternatively layered of permeability magnetic material stack the magnetic core collectively constituted and upper and lower iron yoke closure, above and below Iron yoke need to consume more ferromagnetic material, and product cost is relatively high；Another half core dry reactor, magnetic circuit is by cylindrical magnetic Core and outside air composition.These reactors mostly volume is larger, and permeability magnetic material utilization rate is very low, and material consumption is more, product Cost is still higher, and loss is larger, and heat dissipation performance is poor.

Utility model content

The shortcomings that in order to overcome the prior art to refer to, the utility model provide a kind of iron core reactor, and structure is simple, raw Production. art is simple, and production cost is low, and has good heat sinking function.

The scheme that the utility model is taken in order to solve the above problem is: iron core reactor, including iron core, shape on the iron core At three slots, coil is placed in each slot respectively, the coil is coiled into cake formula, generally uses flat Winding wire is continuously coiled by two disk-type winding units arranged side by side, insulating layer is equipped between the iron core and coil, to guarantee line Circle is to casing insulation.

Wherein, the folded thick internal diameter for being less than the coil of the iron core, so that most of area of coil is directly in greatly In gas, enhance its heat sinking function；When the coil is installed, guarantee that each coil is symmetrically distributed in folded thick direction.The iron Core forms one by welding procedure using several silicon steel sheets, and simple process is convenient for production quick.

One disk-type winding unit of each coil is from outside inward around another disk-type winding unit is from inner past Outside around, therefore the extraction line end of two disk-type winding units all be set to the coil outer ring, so as to wiring.

Three slot uniform intervals are arranged on the iron core, the iron core be in " ware " font, by two at The horizontal stripe of type and four molding taeniaes are welded.

The beneficial effects of the utility model are:

One, air gap is big, reactor will not magnetic saturation, good linearity, influence of the variation of exciting current to inductance be small；

Two, coil is placed in iron core air gap, and magnetic flux area substantially exceeds core section not equal to core section product Product, if iron core flux density is identical, the reactor of equivalent capability is compared, and the core material of the iron core reactor of the design will be far fewer than Common iron core reactor；

Three, the area of coil is directly in atmosphere, and radiating condition is good, and the current density that when design uses is higher, The consumption of winding copper material can be saved；

Four, simple process, has reformed traditional reactor production technology, iron core not manually lamination and will with automatic welder Lamination is directly welded into entirety, and disk-type winding is directly plugged into iron core hole, and inductance error is small, does not have to debugging air gap.

Detailed description of the invention

Fig. 1 is the structural side view of the utility model；

Fig. 2 is the structural front view of the utility model；

Fig. 3 is the operation principle schematic diagram one of the utility model；

Fig. 4 is the operation principle schematic diagram two of the utility model.

Specific embodiment

The utility model is further detailed with reference to the accompanying drawing.

As depicted in figs. 1 and 2, the lower part of iron core reactor, including iron core 1 and coil 2 etc., the iron core 1 is connected with peace Seat 11 is filled, the iron core 1 forms one by welding procedure using several silicon steel sheets, and the iron core 1 is in " ware " font, the iron It forms that there are three the slots of uniform intervals arrangement on core, is placed with coil 2, the line respectively in each slot Circle 2 is coiled into cake formula, generally uses flat winding wire, is continuously coiled by two disk-type winding units arranged side by side, each coil 2 A disk-type winding unit be from around, another disk-type winding unit being inward outside from inside outwards around therefore two disk-type windings The extraction line end 21 of unit is all in the outer ring for being set to the coil 2, so as to wiring；It is equipped between the iron core 1 and coil 2 exhausted Edge layer (insulating paper) 3, to guarantee coil 2 to casing insulation；The iron core reactor is mainly used for current limliting, is especially having higher hamonic wave Circuit in, for inhibiting higher harmonic current, be mainly used in the alternating-current actuating system of cross-straight-intersection, also for PWM exchange Transmission system is such as used as input reactance device, then can reduce interference of the triple-frequency harmonics to public electric wire net.

Wherein, folded thick (width of vertical cross-section, as shown in Figure 1) of the iron core 1 is less than the internal diameter of the coil 2, from And most of area of coil 2 is directly in atmosphere, enhances its heat sinking function；When the coil 2 is installed, guarantee each described Coil is symmetrically distributed in folded thick direction.

As shown in Figure 3 and Figure 4, arrow show magnetic strength direction in Fig. 4；The Novel reactor working principle can be from the reality Apply and a phase taken to introduce in example, that is, a single-phase reactor is formed by the iron core of a coil and surrounding, when certain in a flash Alternating current is flowed into from the end A1, is flowed out from the end A2, magnetic field is generated in iron core, magnetic flux is through iron core and passes through the inner hole shape in coil At circuit, internal coil diameter iron-core-free merely comprises the air gap of magnetic circuit, therefore actually this iron core reactor is iron core reactor and sky The combination of core reactor.

As described above, the only preferred embodiment of the utility model, when cannot be limited with this utility model implementation range, All still belong to the utility model according to simple equivalent changes and modifications made by the utility model claim and novel description generally In the range of patent covers.

Claims (6)

1. iron core reactor, including iron core, which is characterized in that three slots are formed on the iron core, it is each described rectangular Coil is placed in shape hole respectively, the coil is continuously coiled by two disk-type winding units arranged side by side, the iron core and coil Between be equipped with insulating layer.

2. iron core reactor according to claim 1, which is characterized in that the terminals of two disk-type winding units are all set to The outer ring of the coil.

3. iron core reactor according to claim 1, which is characterized in that three slot uniform intervals are arranged in On the iron core.

4. iron core reactor according to claim 1, which is characterized in that the folded thickness of the iron core is less than the interior of the coil Diameter.

5. iron core reactor according to claim 4, which is characterized in that each coil is symmetrically distributed in folded thickness side To.

6. iron core reactor according to claim 1, which is characterized in that the iron core passes through welding using several silicon steel sheets Technique forms one.