CN203799814U - Three-phase reactor and three-phase inverter - Google Patents

Three-phase reactor and three-phase inverter Download PDF

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Publication number
CN203799814U
CN203799814U CN201420211787.1U CN201420211787U CN203799814U CN 203799814 U CN203799814 U CN 203799814U CN 201420211787 U CN201420211787 U CN 201420211787U CN 203799814 U CN203799814 U CN 203799814U
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China
Prior art keywords
magnetic
magnetic core
cores
core
phase reactor
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CN201420211787.1U
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Chinese (zh)
Inventor
张普雷
马志军
靳广超
魏卓
段凯迪
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Vertiv Tech Co Ltd
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Emerson Network Power Co Ltd
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Abstract

The utility model discloses a three-phase reactor and a three-phase inverter. The three-phase reactor comprises three first magnetic cores, two second magnetic cores and six coils, each first magnetic core comprises two magnetic cylinders and two magnetic yokes, each second magnetic core comprises three magnetic cylinders and two magnetic yokes, the two second magnetic cores are located on the two sides of the three first magnetic cores, the three first magnetic cores are parallel to one another and perpendicular to the second magnetic cores, each of the two magnetic cylinders of each first magnetic core is adjacent to one magnetic cylinder of the two second magnetic cores, each coil is wound on the corresponding two adjacent magnetic cylinders, and magnetic fields generated by the coils on the two magnetic cylinders of the same first magnetic core are opposite in direction. The three-phase reactor has the advantage of small size.

Description

A kind of three-phase reactor and three-phase inverter
Technical field
The utility model relates to electric and electronic technical field, relates in particular to a kind of three-phase reactor and three-phase inverter.
Background technology
In inverter, reactor can play the effect of filtering, and the performance index of inverter and cost are had to significant impact.In recent years, mutual reactor was widely used in inverter, and mutual reactor can obviously improve dynamic property and the efficiency of inverter.
Shown in Fig. 1, be a kind of three-phase inverter of the prior art, this three-phase inversion implement body has adopted three independently mutual reactors, yet three mutual reactors independently exist, and not only volume is larger, and cost is also higher.
Utility model content
The utility model embodiment provides a kind of three-phase reactor and three-phase inverter, can reduce reactor volume.
The utility model embodiment provides a kind of three-phase reactor, comprises three the first magnetic cores, two the second magnetic cores and six coils, and each first magnetic core comprises two magnetic posts and two yokes, and each second magnetic core comprises three magnetic posts and two yokes, wherein:
Two the second magnetic cores are positioned at the both sides of three the first magnetic cores, and three the first magnetic cores are parallel to each other and perpendicular to two the second magnetic cores;
Two magnetic posts of each the first magnetic core are adjacent with a magnetic post of two the second magnetic cores respectively, and each coil is on two adjacent magnetic posts, and the magnetic direction that the coil on two magnetic posts of same the first magnetic core produces is contrary.
The utility model embodiment also provides a kind of three-phase inverter, comprises above-mentioned three-phase reactor.
The three-phase reactor that the utility model embodiment provides, comprise three the first magnetic cores, two the second magnetic cores and six coils, wherein, the first magnetic core is equivalent to mutual inductance magnetic core, the second magnetic core is equivalent to leakage inductance magnetic core, the reactor that the utility model embodiment provides be equivalent to by three independently mutual reactor be integrated into a three-phase reactor, therefore can reduce volume, reduce costs.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model with the utility model embodiment mono-, does not form restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the three-phase inverter of available technology adopting mutual reactor;
The structural representation of the three-phase reactor that Fig. 2 provides for the utility model embodiment 1;
The front view of the three-phase reactor that Fig. 3 a) provides for the utility model embodiment 1;
The end view of three-phase reactor Fig. 3 b) providing for the utility model embodiment 1;
The vertical view of three-phase reactor Fig. 3 c) providing for the utility model embodiment 1;
The structural representation of the three-phase inverter that Fig. 4 provides for the utility model embodiment 2.
Embodiment
In order to provide the implementation of the three-phase reactor that can provide small volume, the utility model embodiment provides a kind of three-phase reactor, below in conjunction with Figure of description, preferred embodiment of the present utility model is described, be to be understood that, preferred embodiment described herein is only for description and interpretation the utility model, and is not used in restriction the utility model.And in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
Embodiment 1:
Figure 2 shows that the three-phase reactor that the utility model embodiment 1 provides, comprise three the first magnetic cores 201, two the second magnetic cores 202 and six coils 200, each first magnetic core 201 comprises two magnetic posts and two yokes, and each second magnetic core 202 comprises three magnetic posts and two yokes, wherein:
Two the second magnetic cores 202 are positioned at the both sides of three the first magnetic cores 201, and three the first magnetic cores 201 are parallel to each other and perpendicular to two the second magnetic cores 202;
Two magnetic posts of each the first magnetic core 201 are adjacent with a magnetic post of two the second magnetic cores 202 respectively, and each coil 200 is on two adjacent magnetic posts, and the magnetic direction that the coil on two magnetic posts of same the first magnetic core 201 produces is contrary.
The negative coupling in magnetic field producing around the coil on two magnetic posts of same the first magnetic core 201.
In conjunction with the three-view diagram of three-phase reactor, can clearerly find out the structure of the three-phase reactor shown in Fig. 2, Fig. 3 is a) front view of three-phase reactor, Fig. 3 b) be the end view of three-phase reactor, Fig. 3 c) be the vertical view of three-phase reactor.
Wherein, three the first magnetic cores 201 are identical magnetic core, and two the second magnetic cores 202 are that identical magnetic core, six coils 200 are also identical coil.
Further, the utility model does not limit the concrete constituted mode of the first magnetic core 201 and the second magnetic core 202.
For example, the first magnetic core 201 can consist of four I type magnetic cores, also can consist of I type magnetic core of a U-shaped magnetic core, also can consist of two U-shaped magnetic cores; The second magnetic core 202 can consist of five I type magnetic cores, also can consist of I type magnetic core of an E type magnetic core, also can consist of two E type magnetic cores.Above-mentioned constituted mode is only example, for other concrete constituted mode of the first magnetic core 201 and the second magnetic core 202, does not repeat them here.
Certainly, the first magnetic core 201 can be also " mouth " font whole magnetic core, and the second magnetic core 202 can be also " day " font whole magnetic core.
Further, the first magnetic core 201 and second magnetic core 202 of the whole magnetic core of formation three-phase reactor also can be as a whole.
During actual enforcement, can choose the whole magnetic core that suitable compound mode forms the three-phase reactor that the utility model embodiment 1 provides according to actual conditions.
Further, on the first magnetic core 201, air gap can be do not had, also air gap can be had.
While not having air gap on the first magnetic core 201, the material of the first magnetic core 201 should be the magnetic material that air gap is contained in inside, be specifically as follows powder core, as iron silicon or iron sial metal magnetic powder core etc., but iron silicon or the higher loss of iron sial metal magnetic powder core cost are less.Above-mentioned powder core is only example, the magnetic material that contains air gap for conventional inside, and be not used in restriction the utility model.
While having air gap on the first magnetic core 201, the material of the first magnetic core 201 can not contain for inside the magnetic material of air gap, the magnetic material that yet can contain air gap for inside.
The magnetic material that air gap is not contained in common inside has silicon steel sheet, ferrite, non-crystaline amorphous metal or microcrystallizing alloy etc., and wherein, but the lower loss of silicon steel sheet cost is larger, but ferrite, non-crystaline amorphous metal or the higher loss of microcrystallizing alloy cost are less.
Accordingly, on the second magnetic core 202, also air gap can be do not had, also air gap can be had.While not having air gap on the second magnetic core 202, the material of the second magnetic core 202 should be the magnetic material that air gap is contained in inside; While having air gap on the second magnetic core 202, the material of the second magnetic core 202 can not contain for inside the magnetic material of air gap, the magnetic material that yet can contain air gap for inside.
Be in the three-phase reactor that provides of the utility model embodiment 1, the first magnetic core 201 and the second magnetic core 202 can all not have air gap simultaneously, can all have air gap simultaneously yet, can one of them have air gap yet.The material of the first magnetic core 201 and the second magnetic core 202 can be identical, can be not identical yet, and concrete material can be determined according to practical application.
To sum up, the utility model embodiment 1 provides a kind of integrated form reactance device, be equivalent to by three independently mutual reactor be integrated into a three-phase reactor, so small volume, cost is lower.The first magnetic core is equivalent to mutual inductance magnetic core, and the second magnetic core is equivalent to leakage inductance magnetic core, by adjusting the ratio of the magnetic resistance of the first magnetic core and the second magnetic core, can reach the object of adjusting coupling coefficient.
Embodiment 2:
The utility model embodiment 2 provides a kind of three-phase inverter, comprises the three-phase reactor of above-described embodiment 1.
Example is a kind of three-phase inverter that has adopted the three-phase reactor of above-described embodiment 1 as shown in Figure 4.Three-phase inverter shown in Fig. 4 is only an example, and is not used in restriction the utility model.The three-phase inverter of the three-phase reactor that other comprises above-described embodiment 1 is all within the utility model protection range.
The three-phase inverter that the utility model embodiment 2 provides can be widely used in the various occasions such as photovoltaic inversion, wind-powered electricity generation unsteady flow, uninterrupted power supply.
In sum, the three-phase reactor that the utility model embodiment provides, comprise three the first magnetic cores, two the second magnetic cores and six coils, each first magnetic core comprises two magnetic posts and two yokes, each second magnetic core comprises three magnetic posts and two yokes, wherein: two the second magnetic cores are positioned at the both sides of three the first magnetic cores, three the first magnetic cores are parallel to each other and perpendicular to two the second magnetic cores; Two magnetic posts of each the first magnetic core are adjacent with a magnetic post of two the second magnetic cores respectively, and each coil is on two adjacent magnetic posts, and the magnetic direction that the coil on two magnetic posts of same the first magnetic core produces is contrary.The three-phase reactor small volume that the utility model embodiment provides, and cost is lower.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.

Claims (7)

1. a three-phase reactor, is characterized in that, comprises three the first magnetic cores, two the second magnetic cores and six coils, and each first magnetic core comprises two magnetic posts and two yokes, and each second magnetic core comprises three magnetic posts and two yokes, wherein:
Two the second magnetic cores are positioned at the both sides of three the first magnetic cores, and three the first magnetic cores are parallel to each other and perpendicular to two the second magnetic cores;
Two magnetic posts of each the first magnetic core are adjacent with a magnetic post of two the second magnetic cores respectively, and each coil is on two adjacent magnetic posts, and the magnetic direction that the coil on two magnetic posts of same the first magnetic core produces is contrary.
2. three-phase reactor as claimed in claim 1, is characterized in that, described the first magnetic core and/or the second magnetic core have air gap.
3. three-phase reactor as claimed in claim 2, is characterized in that, the material of described the first magnetic core and/or the second magnetic core is the inner magnetic material that does not contain air gap.
4. three-phase reactor as claimed in claim 3, is characterized in that, the magnetic material that air gap is not contained in described inside is specially silicon steel sheet, ferrite, non-crystaline amorphous metal or microcrystallizing alloy.
5. the three-phase reactor as described in as arbitrary in claim 1-4, is characterized in that, the material of described the first magnetic core and/or the second magnetic core is the inner magnetic material that contains air gap.
6. three-phase reactor as claimed in claim 5, is characterized in that, the magnetic material that air gap is contained in described inside is specially powder core.
7. a three-phase inverter, is characterized in that, comprises the arbitrary described three-phase reactor of claim 1-6.
CN201420211787.1U 2014-04-28 2014-04-28 Three-phase reactor and three-phase inverter Active CN203799814U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420211787.1U CN203799814U (en) 2014-04-28 2014-04-28 Three-phase reactor and three-phase inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420211787.1U CN203799814U (en) 2014-04-28 2014-04-28 Three-phase reactor and three-phase inverter

Publications (1)

Publication Number Publication Date
CN203799814U true CN203799814U (en) 2014-08-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420211787.1U Active CN203799814U (en) 2014-04-28 2014-04-28 Three-phase reactor and three-phase inverter

Country Status (1)

Country Link
CN (1) CN203799814U (en)

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Address after: Nanshan District Xueyuan Road in Shenzhen city of Guangdong province 518055 No. 1001 Nanshan Chi Park building B2

Patentee after: Vitamin Technology Co., Ltd.

Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong, Shenzhen Branch Road, No.

Patentee before: Aimosheng Network Energy Source Co., Ltd.