CN212062121U

CN212062121U - Combined integrally-formed inductor

Info

Publication number: CN212062121U
Application number: CN202020675290.0U
Authority: CN
Inventors: 李福喜; 陶根勇; 孙臣斌; 孙磊; 胡志远; 王治林; 李天应; 郭伟
Original assignee: Doublecircle Inductor Co ltd Of Bengbu
Current assignee: Doublecircle Inductor Co ltd Of Bengbu
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-12-01
Anticipated expiration: 2030-04-28

Abstract

The utility model belongs to the technical field of electronic equipment, in particular to a combined integrally formed inductor, which comprises an air core coil and a magnetic core, wherein the air core coil comprises two pin line ends which are parallel to each other; the magnetic core comprises a lower support and an upper buckle body, the main body of the lower support is a rectangular block, and an arch-shaped groove and two column-shaped grooves are formed in the rectangular block; the upper buckle body main body is a rectangular plate with the same cross section as the rectangular block of the lower support, a column-shaped supporting rod, a column-shaped bulge and a side baffle are arranged at the bottom of the rectangular plate, and fan-shaped grooves capable of allowing pin line ends to penetrate through are formed in two ends of the bottom of the side baffle. Compared with the prior art, the utility model has the following advantages: this application can realize the effective cladding to hollow coil through the undersetting of making reasonable specification in advance and the body of detaining on, can avoid the influence at the coil of high pressure forming in-process, makes the inductance value of inductance remain stable after the shaping, can also be through increasing the magnetic induction effect of detaining the bellied suppression density reinforcing inductance of body bottom post type on.

Description

Combined integrally-formed inductor

Technical Field

The utility model belongs to the technical field of electronic equipment, concretely relates to modular integrated into one piece inductance.

Background

The integrally formed inductor is mainly applied to consumer electronics products such as PC computers, tablet computers, liquid crystal televisions and the like and automotive electronics products. The rapid development of the electronic products has higher and higher requirements on the safety, reliability and stability of inductance elements, so that the market needs to improve and innovate the structural design, the die design and the die casting process, and more excellent integrated inductors are manufactured in different fields to meet the updating and upgrading requirements of the electronic products; the integrally formed inductor is formed by molding an air-core coil, an electrode plate and insulating treatment powder, and because the coil is generally formed by stacking a plurality of layers (straight tube shape), slip and dislocation are easy to occur in the high-pressure molding process of the coil and the powder, the shape of the coil is changed, and the change cannot be controlled, the inductance value of the inductor after molding has a range, and the larger the deformation is, the farther the inductance value deviates from the central value; the enamel layer is easy to damage in the process of coil slip dislocation deformation, so that the poor inductance layer is caused; in addition, the inductance is influenced by the coil, and the forming density in the hollow part of the coil in the integrally pressed inductor is lower, so that the magnetic conduction effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a modular integrated into one piece inductance to current coil take place the slip dislocation problem easily with powder high pressure forming in-process.

The utility model discloses a realize through following technical scheme: a combined integrally-formed inductor comprises an air coil and a magnetic core, wherein the air coil comprises two pin line ends which are parallel to each other, and the pin line ends are perpendicular to the axial lead of the air coil; the magnetic core comprises a lower support and an upper buckle body, the lower support body is a rectangular block, an arched door-shaped groove and two column-shaped grooves are formed in the rectangular block, and the column-shaped grooves are located at positions far away from the opening side of the arched door-shaped groove; the upper buckle body main body is a rectangular plate which is the same as the cross section of the rectangular block of the lower support, a columnar supporting rod matched with the columnar groove is arranged at the position, corresponding to the columnar groove, of the bottom of the rectangular plate, a columnar bulge matched with the hollow groove of the hollow coil is arranged at the center of the bottom of the rectangular plate, a side baffle matched with the longitudinal section of the opening side of the arched door groove is arranged on one side, away from the columnar supporting rod, of the rectangular plate, and fan-shaped grooves capable of allowing pin line ends to penetrate are formed in the two ends of the bottom of the side baffle.

Specifically, the lower support and the upper buckle body are formed by separately molding insulating magnetic powder; the depth of the arched door type groove is matched with the height of the hollow coil; the guide sheet is characterized by further comprising guide sheets, positioning holes are evenly distributed on two sides of each guide sheet, the guide sheets extend inwards from two sides to form guide strips, the guide strips extend upwards to obtain clamping ends, and the guide strips extend downwards to obtain welding ends.

According to the combined integrally-formed inductor, the part of the pin wire end, which is positioned outside the fan-shaped groove, is flattened after removing an enameled wire to obtain a pin end; fixing the pin end and the welding end by spot welding; the hollow coil, the lower support and the upper buckle body are assembled and connected with the guide vane, and then the hollow coil, the lower support and the upper buckle body are placed into a forming die and the insulating magnetic powder is added into the forming die to be pressed into a forming part.

Compared with the prior art, the utility model has the following advantages: this application can realize the effective cladding to hollow coil through the undersetting of making reasonable specification in advance and the body of detaining on, can avoid the influence at the coil of high pressure forming in-process, makes the inductance value of inductance remain stable after the shaping, can also be through increasing the magnetic induction effect of detaining the bellied suppression density reinforcing inductance of body bottom post type on.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of an air-core coil structure.

Fig. 3 is a schematic structural view of the lower support.

Fig. 4 is a top view of the lower support.

Fig. 5 is a schematic structural view of the upper buckle body.

Fig. 6 is a bottom view of the upper clasp body.

Fig. 7 is a structural schematic diagram of the assembled coil, lower support and upper buckle body.

Fig. 8 is a schematic view of the structure of the lead terminal after flattening.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-8, a combined integrally-formed inductor includes an air coil 1 and a magnetic core, where the air coil 1 includes two parallel pin terminals 11, and the pin terminals 11 are perpendicular to an axial line of the air coil 1; the magnetic core comprises a lower support 2 and an upper buckle body 3, the main body of the lower support 2 is a rectangular block, an arched door-shaped groove 22 and two column-shaped grooves 21 are formed in the rectangular block, and the column-shaped grooves 21 are located at positions far away from the opening side of the arched door-shaped groove 22; the main body of the upper buckle body 3 is a rectangular plate with the same cross section as the rectangular block of the lower support 2, a column-shaped supporting rod 31 matched with the column-shaped groove 21 is arranged at the position, corresponding to the column-shaped groove, of the bottom of the rectangular plate, a column-shaped bulge 32 matched with the hollow groove of the hollow coil 1 is arranged at the center of the bottom of the rectangular plate, a side baffle 33 matched with the longitudinal section of the opening side of the arched door groove 22 is arranged on one side, away from the column-shaped supporting rod 31, of the rectangular plate, and fan-shaped grooves 34 allowing the pin line ends 11 to penetrate are formed in the two ends of the.

Wherein, the lower support 2 and the upper buckle body 3 are formed by separately molding insulating magnetic powder; the depth of the arched door type groove 22 is matched with the height of the hollow coil 1; the guide plate structure further comprises a guide plate 4, positioning holes 41 are uniformly distributed on two sides of the guide plate 4, the guide plate 4 extends inwards from the two sides to form a guide strip 44, the guide strip 44 extends upwards to obtain a clamping end 42, and extends downwards to obtain a welding end 43.

When the combined integrally-formed inductor is manufactured, the hollow coil 1, the lower support 2 and the upper buckle body 3 are assembled to obtain a structure shown in fig. 7, and the enameled wire is removed and flattened to obtain a pin end 110 by the part of the pin end 11, which is positioned outside the sector groove 34, as shown in fig. 8; fixing the pin end 110 and the welding end 43 in a spot welding manner; then the material is put into a forming die and is added with insulating magnetic powder to be pressed into a forming part.

The rational design of the structure of the lower support and the upper buckle body can enable the hollow coil 1, the lower support 2 and the upper buckle body 3 to be effectively assembled, the problem of displacement or extrusion of the hollow coil 1 is avoided, the influence of the coil in the high-pressure forming process can be avoided, and the inductance value of the inductor is kept stable after forming.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A combined integrally-formed inductor comprises an air coil and a magnetic core, and is characterized in that the air coil comprises two pin line ends which are parallel to each other, and the pin line ends are perpendicular to the axial lead of the air coil; the magnetic core comprises a lower support and an upper buckle body, the lower support body is a rectangular block, an arched door-shaped groove and two column-shaped grooves are formed in the rectangular block, and the column-shaped grooves are located at positions far away from the opening side of the arched door-shaped groove; the upper buckle body main body is a rectangular plate which is the same as the cross section of the rectangular block of the lower support, a columnar supporting rod matched with the columnar groove is arranged at the position, corresponding to the columnar groove, of the bottom of the rectangular plate, a columnar bulge matched with the hollow groove of the hollow coil is arranged at the center of the bottom of the rectangular plate, a side baffle matched with the longitudinal section of the opening side of the arched door groove is arranged on one side, away from the columnar supporting rod, of the rectangular plate, and fan-shaped grooves capable of allowing pin line ends to penetrate are formed in the two ends of the bottom of the side baffle.

2. The combined integrally formed inductor as claimed in claim 1, wherein the lower base and the upper body are molded separately from the insulating magnetic powder.

3. The integrated inductor of claim 1, wherein the depth of the arch-shaped groove matches the height of the air-core coil.

4. The integrated inductor of claim 1, further comprising a conductive sheet, wherein the conductive sheet has positioning holes uniformly distributed on both sides thereof, the conductive sheet extends inward from both sides thereof to form a conductive strip, the conductive strip extends upward to form a locking terminal, and the conductive strip extends downward to form a welding terminal.

5. The combined integrally formed inductor according to claim 4, wherein the portion of the lead terminal outside the fan-shaped groove is flattened after removing the enameled wire to obtain the lead terminal; fixing the pin end and the welding end by spot welding; the hollow coil, the lower support and the upper buckle body are assembled and connected with the guide vane, and then the hollow coil, the lower support and the upper buckle body are placed into a forming die and the insulating magnetic powder is added into the forming die to be pressed into a forming part.