CN213366346U

CN213366346U - Large-current parallel inductance magnetic part

Info

Publication number: CN213366346U
Application number: CN202022726441.3U
Authority: CN
Inventors: 李福元; 李宾; 王佩明; 李志刚
Original assignee: Anhui Zhaosheng New Energy Technology Co ltd
Current assignee: Anhui Zhaosheng New Energy Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-06-04
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a parallelly connected inductance magnetism spare of heavy current, include the magnetic core, found winding group and insulating cylinder, the magnetic core with the outside of insulating cylinder is provided with a plurality of groups found winding group, found winding group and comprises first coil and second coil, first coil with the parameter of second coil is unanimous nevertheless each other winding method is opposite, and first coil and second coil are through holding the connection with the same name. By which the coil structure is optimized. Finally, the size of the product is reduced, the product can be installed in the inner cavity of small-size equipment on the premise of meeting the large-current working condition, and meanwhile, the reliability and stability of the product in the using process are improved.

Description

Large-current parallel inductance magnetic part

Technical Field

The utility model relates to a power electronic equipment field, in particular to parallelly connected inductance magnetism spare of heavy current.

Background

Most of magnetic device inductance coils in the power electronic equipment system adopt a structure that a flat wire and a single wire are vertically wound, and under the condition that the size of an inner cavity of large-current equipment is small, a single large-size flat wire cannot be bent, so that the small-size flat wire can only be selected to adopt a structure that two wires or multiple wires are wound in parallel. However, due to the limitation of the capability of manufacturing equipment, the structure with two or more parallel wires cannot be produced in batch on automatic equipment at present, and the manual generation beat is slow and the yield is low.

At present, a new product is urgently needed to be developed, so that the product can meet the working condition of large current and can be installed in the inner cavity of small-sized equipment.

SUMMERY OF THE UTILITY MODEL

In order to realize the purpose of the utility model, the utility model adopts the technical scheme that:

the utility model provides a parallelly connected inductance magnetism spare of heavy current, includes the magnetic core, found winding coil group and insulating cylinder, the magnetic core with the outside of insulating cylinder is provided with a plurality of groups found winding coil group, found winding coil group and comprises first coil and second coil, first coil with the parameter of second coil is unanimous but winding method is opposite each other, and first coil and second coil are through the end connection of same name.

In a preferred embodiment of the present invention, when the number of the vertical winding coil assemblies is greater than or equal to 2, the coil assemblies are connected in parallel by using 2 stages.

In a preferred embodiment of the present invention, the first coil and the second coil may be wound in a continuous winding manner.

In a preferred embodiment of the present invention, the magnetic core further includes a first magnetic core and a second magnetic core, the first magnetic core and the second magnetic core are fixed by an adhesive on the end surface, and are combined to form a magnetic core, and the shape of the magnetic core may be a CD type, a UU type, or a UI type.

The beneficial effects of the utility model reside in that:

the utility model provides a pair of parallelly connected inductance magnetism spare of heavy current optimizes coil structure through it. Finally, the size of the product is reduced, the product can be installed in the inner cavity of small-size equipment on the premise of meeting the large-current working condition, and meanwhile, the reliability and stability of the product in the using process are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of the CD magnetic core of the present invention.

Fig. 3 is the utility model discloses a UU magnetic core perspective.

Fig. 4 is a perspective view of the circular coil of the present invention.

Fig. 5 is a perspective view of the elliptical coil of the present invention.

Fig. 6 is a perspective view of the multi-coil assembly of the present invention.

Detailed Description

The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, 2 and 3, the parallel large-current inductance magnetic member includes a magnetic core 1, the magnetic core 1 is formed by combining a first magnetic core and a second magnetic core in a paired manner, the magnetic core may be a CD-type, UU-type or UI-type paired combined magnetic core, and the material may be amorphous, nanocrystalline, metal powder core (iron silicon/iron silicon aluminum/iron nickel, etc.), ferrite, etc. The magnetic core 1 is provided with the insulating cylinder 2, and the insulating cylinder 2 is directly sleeved into the magnetic core 1 during installation.

With reference to fig. 1, 4 and 5, the magnetic core 1 and the insulating cylinder 2 are further sleeved with a vertically wound coil group 3, the vertically wound coil group 3 may be made of copper, aluminum or copper-clad aluminum, an insulating layer is disposed on an outer layer, the insulating layer may be made of an enamel-covered bag, a paper-covered bag or a film-covered bag, a flat wire is used for vertical winding, and the longitudinal section of the flat wire may be any one of an ellipse, a rectangle or a circle.

With emphasis on combining fig. 4 and fig. 6, the vertical winding coil group 3 may be provided with a plurality of groups, each group is composed of a first coil 31 and a second coil 32, the parameters of the first coil 31 and the second coil 32 are consistent but the winding methods are opposite, and the high current is realized by connecting the terminals with the same name in parallel. When the number of the vertical winding coil groups 3 is more than or equal to 2, the large current is realized through 2-stage parallel connection.

With reference to fig. 5 and 6, the vertically wound coil assembly 3 may also adopt a winding manner in which the first coil 31 and the second coil 32 are continuously wound on the left and right sides, i.e., an "8" shaped structure.

By optimizing the coil structure, the middle of the coil is free of joints and welding spots, so that the reliability and stability of the product in the using process are improved.

After the vertical winding coil group 3 is sleeved on the outer sides of the first magnetic core 11 and the insulating cylinder 2, the second magnetic core 12 is sleeved, and the second magnetic core 12 is bonded and fixed through glue on the end face of the first magnetic core 11. And respectively dispensing and fixing the magnetic core 1, the insulating cylinder 2 and the coil 3, and finally putting the product into a shell reserved for the system assembly for encapsulation.

Claims

1. The utility model provides a parallelly connected inductance magnetism spare of heavy current, includes the magnetic core, found winding coil group and insulating cylinder, its characterized in that, the magnetic core with the outside of insulating cylinder is provided with a plurality of groups found winding coil group, found winding coil group and comprises first coil and second coil, first coil with the parameter of second coil is unanimous but winding method is opposite each other, and first coil and second coil are through holding the connection of same name.

2. A high current shunt inductor as claimed in claim 1 wherein said sets of vertically wound coils are connected in 2-level parallel when the number of said sets is 2 or more.

3. A high current parallel inductor according to claim 1 wherein said first coil and said second coil are wound in a side-to-side continuous winding manner.

4. A high current parallel inductor according to claim 1, wherein said core further comprises a first core and a second core, said first core and said second core being secured by an adhesive on said end surfaces and mated to form a core, said core being in the form of a CD, UU or UI.