CN215770819U

CN215770819U - Inductance framework with air gap pieces and inductor

Info

Publication number: CN215770819U
Application number: CN202122323866.4U
Authority: CN
Inventors: 高宽志
Original assignee: Qingdao Anjie Energy Technology Co ltd
Current assignee: Qingdao Anjie Energy Technology Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-08
Anticipated expiration: 2031-09-24

Abstract

The utility model provides an inductance framework with air gap pieces and an inductance, comprising a winding part, wherein the left side wall and the right side wall are symmetrically arranged on the left side and the right side of the winding part, and a winding groove is formed between the left side wall and the right side wall; a through hole is formed in the winding part and penetrates to the right side wall along the left side wall; and one of the left side wall and the right side wall is symmetrically provided with air gap pieces at two sides. The utility model has simple structure and reasonable design, the air gap sheets enable air gaps to be formed between the magnetic cores assembled on the inductance framework, and the magnetic cores do not need to be separately designed and processed or the inductance framework is provided with insulating paper, thereby reducing the operation procedures, reducing the production cost and being beneficial to improving the working stability of the inductance.

Description

Inductance framework with air gap pieces and inductor

Technical Field

The utility model belongs to the technical field of inductors, and particularly relates to an inductance framework with air gap pieces and an inductance.

Background

The inductor is an element capable of converting electric energy into magnetic energy to be stored, and is widely applied to various electronic products such as aerospace, aviation, communication, household appliances and the like. The inductor generally comprises a framework, a winding, a shielding case, a packaging material, a magnetic core or an iron core and the like. The inductance framework in the prior art is generally in a structure with pins, when a silicon steel sheet magnetic core is installed, insulating paper with a corresponding thickness is needed to be used for guaranteeing an air gap of a magnetic circuit, the conventional production and processing technology needs to consume insulating paper materials, and needs to add one more step of insulating paper installation, so that the time and material consumption are low, and the efficiency is low.

Therefore, from the viewpoints of simplifying the production process, reducing the cost and improving the quality of the inductor, it is necessary to optimize the structure of the inductor framework and design the inductor framework without installing insulating paper.

SUMMERY OF THE UTILITY MODEL

The utility model provides an inductance framework with air gap pieces and an inductance aiming at the technical problems, the inductance framework with the air gap pieces is simple in structure, reasonable in design and convenient to use, an inductance air gap can be formed between magnetic cores by the air gap pieces, the problem of saturation of the inductance is effectively avoided, and the manufacturing cost is effectively reduced.

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

the inductance framework with the air gap sheet comprises a winding part, wherein a left side wall and a right side wall are symmetrically arranged on the left side and the right side of the winding part, and a winding groove is formed between the left side wall and the right side wall; a through hole is formed in the winding part and penetrates to the right side wall along the left side wall; and one of the left side wall and the right side wall is symmetrically provided with air gap pieces at two sides.

The inductance framework provided by the technical scheme is simple in structure and reasonable in design, the air gap sheets are symmetrically arranged on the left side wall or the right side wall, the inductance framework can form an inductance air gap after a magnetic core (silicon steel sheet) is installed without additionally installing insulating paper, the production process of the inductance framework is optimized, the production efficiency is improved, and the material cost and the labor cost are further reduced.

In some embodiments, a left base is arranged at the bottom of the left side wall, a right base is arranged at the bottom of the right side wall, and a plurality of pins are arranged at the lower ends of the left base and the right base; the connection between the PCB and the PCB is realized through the pins, and the electric conduction effect is realized during the operation of the PCB.

In some of the embodiments, a side surface of the left side wall is provided with a left groove, and a side surface of the right side wall is provided with a right groove; through setting up left recess and right recess and being used for holding magnetic core (silicon steel sheet), simple and convenient.

In some embodiments, a left limiting plate opposite to the left base is arranged on the left side wall, a right limiting plate opposite to the right base is arranged on the right side wall, the left groove is formed between the left limiting plate and the left base, and the right groove is formed between the right limiting plate and the right base; the limiting plate and the base form a groove, so that the magnetic core can be assembled on the inductance framework more conveniently, and the magnetic core is limited by the left limiting plate and the right limiting plate.

In some embodiments, the lower surfaces of the left and right limiting plates are provided with first clamping portions, the upper surfaces of the left and right bases are provided with second clamping portions opposite to the first clamping portions, and the second clamping portions are formed by extending the bottom wall of the through hole to the outer side.

In some of these embodiments, the air gap piece is rectangular, and is formed by extending the left side wall or the right side wall towards two sides.

The utility model also provides an inductor, which comprises an inductor framework, a magnetic core and a coil winding, wherein the inductor framework is the inductor framework in any technical scheme, the magnetic core consists of an I-shaped magnetic core and an E-shaped magnetic core, and the coil winding is wound on the winding part.

In some embodiments, the I-shaped magnetic core is mounted on the side of the inductor framework provided with the air gap sheet, the center pillar of the E-shaped magnetic core is embedded into the through hole from the side of the through hole far away from the air gap sheet, and the air gap sheet separates the I-shaped magnetic core and the E-shaped magnetic core to form an air gap of the inductor.

Compared with the prior art, the utility model has the advantages and positive effects that:

the inductance framework provided by the utility model replaces the traditional insulating paper for protecting the magnetic circuit air gap by the air gap sheet, so that the processes of insulating paper material and insulating paper installation can be effectively omitted, and the production cost is greatly reduced. Meanwhile, in the inductor formed by assembling the I-shaped magnetic core and the E-shaped magnetic core on the inductor framework, the air gap sheet is positioned between the I-shaped magnetic core and the E-shaped magnetic core so as to form an air gap of the inductor, thereby effectively preventing the problem of saturation of the inductor and reducing the interference of the inductor to a circuit.

Drawings

Fig. 1 is a schematic structural diagram of an inductor skeleton according to an embodiment of the present invention.

In the above figures: an inductor former 100 having air-gap fins; a winding part 1; a through hole 11; a left side wall 2; a left groove 21; a left limit plate 22; a right side wall 3; a right groove 31; a right restriction plate 32; an air gap sheet 4; a left base 5; a right base 6; a pin 7; a first clip portion 8; and a second clamping portion 9.

Detailed Description

The utility model is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.

For better understanding of the above technical solutions, the following detailed descriptions are provided with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, in an exemplary embodiment of an inductor bobbin 100 having an air gap sheet 4 according to the present invention, the inductor bobbin 100 having the air gap sheet 4 includes a winding portion 1, a left sidewall 2 and a right sidewall 3 are symmetrically disposed on left and right sides of the winding portion 1, and a winding slot is formed between the left sidewall 2 and the right sidewall 3; a through hole 11 is arranged in the winding part 1, and the through hole 11 penetrates through the right side wall 3 along the left side wall 2; and one of the left and

right side walls

2 and 3 is symmetrically provided with air gap pieces 4 at both sides thereof. In the present embodiment, the air gap piece 4 is preferably rectangular, and is formed by extending the left side wall 2 or the right side wall 3 toward both sides.

The inductance skeleton that this embodiment provided simple structure, reasonable in design, it is provided with air gap piece 4 through 3 bilateral symmetry at left lateral wall 2 or right side wall, does not need extra installation insulating paper can make the inductance skeleton form the inductance air gap behind the installation magnetic core, has optimized the production technology of inductance skeleton, reduces the operation process, has improved production efficiency, and further reduction material cost and cost of labor. Referring to fig. 1, an air gap sheet 4 is provided on the right sidewall 3.

Further, with continued reference to fig. 1, the bottom of the left sidewall 2 is provided with a left base 5, the bottom of the right sidewall 3 is provided with a right base 6, and the lower ends of the left base 5 and the right base 6 are provided with a plurality of pins 7; the left side wall 2 is provided with a left groove 21 on the side and the right side wall 3 is provided with a right groove 31 on the side. In the embodiment, the pins 7 are arranged to realize the connection with the PCB, so that the function of electric conduction is realized during the work; and through setting up left recess 21 and right recess 31 and be used for holding the magnetic core, it is simple and convenient.

Specifically, the left side wall 2 is provided with a left limit plate 22 opposite to the left base 5, the right side wall 3 is provided with a right limit plate 32 opposite to the right base 6, a left groove 21 is formed between the left limit plate 22 and the left base 5, and a right groove 31 is formed between the right limit plate 32 and the right base 6. In this embodiment, form the recess through limiting plate and base, can make the more convenient assembly of magnetic core on the inductance skeleton, and carry on spacingly to the magnetic core through setting up left limiting plate 22 and right limiting plate 32, play the effect of keeping apart the magnetic core simultaneously.

Further, for more conveniently assembling the magnetic core, this embodiment all is provided with first joint portion 8 at the lower surface of left limiting plate 22 and right limiting plate 32, and the upper surface of left base 5 and right base 6 is provided with the second joint portion 9 relative with first joint portion 8, and second joint portion 9 is extended to the outside by the diapire of perforating hole 11 and forms.

The utility model also provides an inductor, which comprises an inductor framework, a magnetic core and a coil winding, wherein the inductor framework is the inductor framework 100 with the air gap sheet in any technical scheme, the magnetic core consists of an I-shaped magnetic core and an E-shaped magnetic core, and the coil winding is wound on the winding part 1. In this embodiment, the I-shaped core is mounted on the side of the inductor frame where the air gap piece 4 is provided, the center pillar of the E-shaped core is fitted into the through hole 11 from the side of the through hole 11 away from the air gap piece 4, and the air gap piece 4 separates the I-shaped core and the E-shaped core to form the air gap of the inductor.

Specifically, the center leg of the E-shaped core is fitted into the through hole 11 from the side of the through hole 11 remote from the air gap piece 4, and the legs at both ends thereof are fitted and engaged with the side wall where the air gap piece 4 is not provided, and the I-shaped core is attached to the side wall where the air gap piece 4 is provided in the former. After the E-shaped magnetic core and the I-shaped magnetic core at two ends of the inductance framework are assembled and combined, the air gap sheet 4 is positioned between the pillars of the I-shaped magnetic core and the E-shaped magnetic core, so that the I-shaped magnetic core and the E-shaped magnetic core can not be in close contact, an air gap is generated, the air gap does not need to be processed independently for the magnetic core or an insulation sheet is installed to form an inductance air gap, the operation procedures are reduced, and the production cost is reduced. It should be noted that the air gap sheet 4 in this embodiment can be designed to have different thicknesses according to actual needs, so as to meet the requirements of different products for air gaps with different sizes, and the air gap stability is high.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The inductance framework with the air gap sheet is characterized by comprising a winding part, wherein a left side wall and a right side wall are symmetrically arranged on the left side and the right side of the winding part, and a winding groove is formed between the left side wall and the right side wall; a through hole is formed in the winding part and penetrates to the right side wall along the left side wall; and one of the left side wall and the right side wall is symmetrically provided with air gap pieces at two sides.

2. The skeletal inductor with air gap pieces of claim 1, wherein the bottom of the left side wall is provided with a left base, the bottom of the right side wall is provided with a right base, and the lower ends of the left base and the right base are provided with a plurality of pins.

3. The skeletal inductor having an air gap sheet of claim 2, wherein the left sidewall has a left groove disposed on a side surface thereof, and the right sidewall has a right groove disposed on a side surface thereof.

4. The skeletal inductor with air gap pieces of claim 3, wherein the left side wall is provided with a left limiting plate opposite to the left base, the right side wall is provided with a right limiting plate opposite to the right base, the left limiting plate and the left base form the left groove therebetween, and the right limiting plate and the right base form the right groove therebetween.

5. The inductance skeleton with the air gap pieces as claimed in claim 4, wherein the lower surfaces of the left and right limiting plates are each provided with a first clamping portion, the upper surfaces of the left and right bases are provided with a second clamping portion opposite to the first clamping portion, and the second clamping portion is formed by extending the bottom wall of the through hole to the outside.

6. The skeletal inductor structure of claim 1, wherein the air gap pieces are rectangular and are formed by extending the left or right side walls towards two sides.

7. An inductor, characterized in that, it includes an inductor frame, a magnetic core and a coil winding, the inductor frame is the inductor frame of any claim 1-6, the magnetic core is composed of an I-shaped magnetic core and an E-shaped magnetic core, the coil winding is wound on the winding portion.

8. The inductor as claimed in claim 7, wherein the I-shaped core is mounted on a side of the inductor frame where the air gap piece is provided, the center leg of the E-shaped core is inserted into the through hole from a side of the through hole away from the air gap piece, and the air gap piece separates the I-shaped core and the E-shaped core to form an air gap of the inductor.