CN218100913U

CN218100913U - Power inductance structure

Info

Publication number: CN218100913U
Application number: CN202222154246.7U
Authority: CN
Inventors: 李菊华
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-12-20
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses a power inductance structure relates to inductance technical field. The utility model discloses a cylinder magnetic core, the outside of cylinder magnetic core is provided with first input coil winding, second output coil winding and third output coil winding respectively, and first input coil winding, second output coil winding and third output coil winding all with the cylinder magnetic core wiring, the cylinder magnetic core is formed by a plurality of circular arc magnetic rings overlapping combination, all uses the insulating enameled wire coiling of stranded in first input coil winding, second output coil winding and the third output coil winding. The utility model discloses only select the insulating enameled wire of stranded of suitable size and opening magnetic ring to design the preparation according to demand power and can make low-loss high power density's inductor, equally divide through the opening air gap to constituting the cylinder magnetic core in addition, combine the cooperation of stranded output coiling to realize the reposition of redundant personnel effect to reduce the current-carrying requirement of back level rectification power device, with reduce cost.

Description

Power inductance structure

Technical Field

The utility model belongs to the technical field of the inductance, especially, relate to a power inductance structure.

Background

Generally refers to an inductor used in electrical engineering and capable of bearing high power, such as an inductor (also called a reactor) used for voltage reduction starting of a large-scale motor (AC). The power inductor is divided into a magnetic cover and a non-magnetic cover, mainly comprises a magnetic core and a copper wire, and the inductor in a general electronic circuit is an air core coil or a coil with the magnetic core, can only pass a small current and bear a low voltage; the power inductor also has a hollow coil and a magnetic core, and is mainly characterized in that the power inductor can bear dozens of amperes, hundreds of amperes, thousands of amperes or even tens of thousands of amperes by winding the power inductor by using a thick conducting wire, and the power inductor has the following two main functions: (1) flow blocking effect: the self-induced electromotive force in the coil is always opposed to the current change in the coil. The inductance coil and the capacitor are connected in parallel to form an LC tuning circuit. That is, the natural oscillation frequency f0 of the circuit is equal to the frequency f of the non-alternating current signal, the inductive reactance and the capacitive reactance of the loop are also equal, and then the electromagnetic energy oscillates back and forth between the inductor and the capacitor, which is the resonance phenomenon of the LC loop. Since the equivalent of the inductive reactance and the capacitive reactance of the circuit is reversed during resonance, the inductive reactance of the total loop current is minimum, and the current magnitude is maximum (i.e., an ac signal of f = f 0), so that the LC resonance circuit has the function of selecting a frequency, and an ac signal of a certain frequency f can be selected.

In the prior art, the loss of a power inductor is large, the power density is not high, in addition, the shape of the inductor in different power scenes is more, the difficulty of design, production and manufacture is improved, the experience of a merchant is too low, and the purchasing desire is not large, so that the power inductor structure is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power inductance structure to current problem has been solved: among the prior art, power inductance's loss is great, and power density is not high simultaneously, and different power scene inductance shapes are more in addition, all promote the degree of difficulty to design, production and preparation, and the merchant experiences the sense and hangs down, purchases the not big defect.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a power inductance structure, including the cylinder magnetic core, the outside of cylinder magnetic core is provided with first input coil winding, second output coil winding and third output coil winding respectively, first input coil winding, second output coil winding and third output coil winding all with cylinder magnetic core wiring, the cylinder magnetic core is formed by a plurality of circular arc magnetic ring overlapping combination, all use the insulating enameled wire coiling of stranded in first input coil winding, second output coil winding and the third output coil winding.

Furthermore, the number of the first input coil windings is two, multiple strands of insulating enameled wires are arranged on the surface of the cylinder magnetic core, and the multiple strands of insulating enameled wires are wound with the cylinder magnetic core.

Further, the second output coil winding is uniformly wound at an air gap of the cylinder magnetic core through a plurality of strands of insulated enameled wires.

Further, the third output coil winding is uniformly wound at the other air gap of the cylinder magnetic core through a plurality of strands of insulated enameled wires.

Furthermore, the cylinder magnetic core is formed by overlapping a plurality of semicircular open type magnetic rings, and the types of the plurality of semicircular open type magnetic rings are the same.

Further, the second output coil winding and the third output coil winding are opposite in position, and the second output coil winding and the third output coil winding are the same in size.

Furthermore, the outer sides of the first input coil winding, the second output coil winding and the third output coil winding are all provided with adhesive-coated paper.

Further, the two first input coil windings are opposite in position, and the two first input coil windings are the same in size.

The utility model discloses following beneficial effect has:

1. the utility model discloses only select the insulating enameled wire of stranded of suitable size and opening magnetic ring to design the preparation according to demand power and can make low-loss high power density's inductor, equally divide through the opening air gap to constituting the cylinder magnetic core in addition, combine the cooperation of stranded output coiling to realize the reposition of redundant personnel effect to reduce the current-carrying requirement of back level rectification power device, with reduce cost.

2. The utility model discloses a product magnetic field distributes evenly, and the magnetic saturation characteristic is good, and for high-power inductance product, possesses multiple structure, can improve the experience of trade company and feel, and then improves the purchase desire of trade company.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the power inductor product of the present invention;

fig. 2 is a left view of the power inductor product of the present invention;

fig. 3 is a front view of the power inductor product of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a cylinder magnetic core; 2. a first input coil winding; 3. a second output coil winding; 4. and a third output coil winding.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention relates to a power inductor structure, which includes a cylinder core 1, wherein a first input winding 2, a second output winding 3 and a third output winding 4 are respectively disposed outside the cylinder core 1, the first input winding 2, the second output winding 3 and the third output winding 4 are all connected to the cylinder core 1 in a winding manner, and a plurality of strands of insulated enameled wires and an open magnetic ring with appropriate size are selected according to the required power to design and manufacture an inductor with low loss and high power density, and in addition, the open air gap constituting the cylinder core 1 is divided equally, and the division effect is realized by combining the cooperation of a plurality of strands of output windings, so as to reduce the current-carrying requirement of the rear-stage rectification power device, thereby reducing the cost, and the magnetic field distribution of the product is uniform, the magnetic saturation characteristic is good, and the product is a high-power inductor product, and has various structures, and the experience of the merchant can be improved, further, the purchase desire of a merchant is improved, the cylinder magnetic core 1 is a structural body formed by overlapping a plurality of arc magnetic rings obtained by halving a circular magnetic core, the cylinder magnetic core 1 is formed by overlapping and combining a plurality of arc magnetic rings, a first input coil winding 2, a second output coil winding 3 and a third output coil winding 4 are wound by using a plurality of strands of insulated enameled wires, the number of the first input coil winding 2 is two, the surface of the cylinder magnetic core 1 is provided with a plurality of strands of insulated enameled wires, the plurality of strands of insulated enameled wires are wound with the cylinder magnetic core 1, the second output coil winding 3 is uniformly wound at one air gap of the cylinder magnetic core 1 through the plurality of strands of insulated enameled wires, the third output coil winding 4 is uniformly wound at the other air gap of the cylinder magnetic core 1 through the plurality of strands of insulated enameled wires, the cylinder magnetic core 1 is formed by overlapping a plurality of semicircular open magnetic rings, the models of a plurality of semicircular open type magnetic rings are the same, the positions of the second output coil winding 3 and the third output coil winding 4 are opposite, the sizes of the second output coil winding 3 and the third output coil winding 4 are the same, the outer sides of the first input coil winding 2, the second output coil winding 3 and the third output coil winding 4 are provided with adhesive-coated paper, the positions of the two first input coil windings 2 are opposite, and the sizes of the two first input coil windings 2 are the same.

One specific application of this embodiment is: only according to the insulating enameled wire of stranded of the suitable size of demand power selection and opening magnetic ring design the preparation and can make low-loss high power density's inductor when using, divide equally through the opening air gap to constituting cylinder magnetic core 1 in addition, combine the cooperation of stranded output coiling to realize the reposition of redundant personnel effect, thereby reduce the current-carrying requirement of back level rectification power device, with reduce cost, make product magnetic field distribution even, the magnetic saturation characteristic is good, and be high-power inductance product, possess multiple structure, can improve the experience of trade company and feel, and then improve trade company's purchase desire.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A power inductance structure, includes cylinder magnetic core (1), its characterized in that: the cylinder magnetic core is characterized in that a first input coil winding (2), a second output coil winding (3) and a third output coil winding (4) are respectively arranged outside the cylinder magnetic core (1), the first input coil winding (2), the second output coil winding (3) and the third output coil winding (4) are all in winding connection with the cylinder magnetic core (1), the cylinder magnetic core (1) is formed by overlapping and combining a plurality of circular arc magnetic rings, and a plurality of strands of insulating enameled wires are wound in the first input coil winding (2), the second output coil winding (3) and the third output coil winding (4).

2. A power inductor structure in accordance with claim 1, wherein: the two first input coil windings (2) are arranged, multiple strands of insulating enameled wires are arranged on the surface of the cylinder magnetic core (1), and the multiple strands of insulating enameled wires are wound with the cylinder magnetic core (1).

3. A power inductor structure in accordance with claim 1, wherein: and the second output coil winding (3) is uniformly wound at an air gap of the cylinder magnetic core (1) through a plurality of strands of insulated enameled wires.

4. A power inductor structure in accordance with claim 1, wherein: and the third output coil winding (4) is uniformly wound at the other air gap of the cylinder magnetic core (1) through a plurality of strands of insulated enameled wires.

5. A power inductor structure in accordance with claim 1, wherein: the column magnetic core (1) is formed by overlapping a plurality of semicircular open type magnetic rings, and the types of the plurality of semicircular open type magnetic rings are the same.

6. A power inductor structure in accordance with claim 1, wherein: the second output coil winding (3) and the third output coil winding (4) are opposite in position, and the second output coil winding (3) and the third output coil winding (4) are identical in size.

7. A power inductor structure in accordance with claim 1, wherein: and the outer sides of the first input coil winding (2), the second output coil winding (3) and the third output coil winding (4) are all provided with adhesive-coated paper.

8. A power inductor structure in accordance with claim 1, wherein: the two first input coil windings (2) are opposite in position, and the two first input coil windings (2) are identical in size.