CN211208151U

CN211208151U - Multi-connected high-power discharge inductor

Info

Publication number: CN211208151U
Application number: CN201922354005.5U
Authority: CN
Inventors: 伍尚攀
Original assignee: Nanchong Xinchuan Electronic Technology Co ltd
Current assignee: Nanchong Xinchuan Electronic Technology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-08-07
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a sense is arranged to high-power of multiple-unit type, first magnetism base and second magnetism base including cover plate and relative rigid coupling, the draw-in groove structure has been seted up along one side of first magnetism base, be equipped with two at least rectangular shape connecting terminal of arranging along its length direction in the draw-in groove structure, be equipped with the air gap between the relative connection terminal surface of first magnetism base and second magnetism base, this draw-in groove structure includes that one sets up and sets up the groove under the bar of first magnetism base at a side of relative second magnetism base, the bar sinks the groove and sets up from the installation face of first magnetism base, and there is the step in the end of first magnetism base at the upper surface that deviates from this installation face along the shaping of department, the bar sinks to be equipped with two at least terminals on the groove lateral wall in groove under the groove, be equipped with the baffle between the adjacent arrangement boss. The utility model discloses a big power of multiple-unit type is arranged and is felt simple structure compares current coil form power inductance, and it has saved complex structure such as coil, pin, has saved installation space and time.

Description

Multi-connected high-power discharge inductor

Technical Field

The utility model relates to a power inductance technical field, concretely relates to production and high-power row of convenient multiple-unit type feel of assembling are high-efficient.

Background

The high-power chip inductor generally refers to a chip inductor with a current resistance of more than 1A, and with the continuous development of electronic technology, electronic components are gradually developed in the direction of high frequency, miniaturization and power. The high-power chip inductor is an inductor which is suitable for electronic equipment, particularly for the electromagnetic compatibility requirement of a power supply part, can load larger direct current, can better absorb power supply noise, and is particularly suitable for eliminating electromagnetic interference of the power supply part.

From the manufacturing process, there are mainly 4 types of chip power inductors of the prior art, i.e., a wire-wound type, a laminated type, a woven type, and a film type. Among them, the wound chip power inductor is a product of miniaturization of the conventional wound power inductor, but it has a disadvantage that it is limited in further miniaturization, and the withstand current strength is low in miniaturization. In addition, in the prior art, a chip power inductor composed of a base, a magnetic core arranged on the base, and two coils arranged on the magnetic core has a complex structure, and in order to facilitate welding of the power inductor on a circuit board, pins are generally arranged on the base and are mainly arranged on the bottom surface of the base to form a plug-in structure. Especially, when the specification and size of the power inductor are small, the base, the magnetic core, the coil and the pins for connecting the coil are inconvenient to produce, mold and assemble, and the production and assembly efficiency is low.

On the other hand, with the development of the switching power supply, the requirement on power is continuously increased, the stored energy of a PFC inductor in the switching power supply is also increased, so that the air gap of a magnetic material is required to be increased, the generated high-frequency leakage flux can bombard a nearby enameled wire to generate high temperature, power consumption and efficiency reduction.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the technology, the utility model provides a production and assembly high-efficient convenient multi-connected high-power discharge induction.

The utility model discloses realize that the technical scheme that above-mentioned technological effect adopted is:

a multi-connected high-power inductor comprises a cover plate, a first magnetic base and a second magnetic base which are fixedly connected with each other left and right, wherein the first magnetic base is provided with a clamping groove structure at one side edge opposite to the second magnetic base, at least two strip-shaped connecting terminals arranged along the length direction of the first magnetic base are arranged in the clamping groove structure, an air gap is arranged between the opposite connecting end surfaces of the first magnetic base and the second magnetic base, the lower surface of the cover plate is provided with adhesive, the length and width of the cover plate are matched with the length and width of a magnetic core body formed by the first magnetic base and the second magnetic base which are fixedly connected together, the clamping groove structure comprises a strip-shaped sunken groove which is arranged at one side surface of the first magnetic base opposite to the second magnetic base and is arranged on the mounting surface of the first magnetic base, an upper step is formed at the end edge of the upper surface of the mounting surface, which deviates from the first magnetic base, at least two terminal mounting bosses are arranged on the side wall of the strip-shaped sink groove, a partition plate is arranged between the adjacent mounting bosses, and terminal slots are formed between the end surfaces of two sides of the partition plate and the corresponding end surfaces of the adjacent mounting bosses.

Preferably, in the multi-connected high-power inductor, the first magnetic base and the second magnetic base are both strip-shaped magnetic bases, the end face of the second magnetic base on one side opposite to the first magnetic base is a smooth surface, and the opposite connection end faces of the second magnetic base and the first magnetic base are connected through adhesive glue.

Preferably, in the multi-connected high-power inductor, the connecting terminal includes a connecting arm, two ends of the connecting arm are bent toward the vertical direction to form insertion portions, ends of the two insertion portions are bent in the horizontal direction relatively, and connecting end portions with opposite extending directions are provided, the connecting arm is assembled in an installation gap between the upper step and the installation boss, the two insertion portions of the connecting arm are inserted into the terminal slots at two ends of the installation boss, one of the connecting end portions is bent and attached to the installation surface of the first magnetic base, and the other connecting end portion is bent and attached to the installation surface of the second magnetic base.

Preferably, in the multi-connected high-power strip inductor, the length and the thickness of the first magnetic base are respectively equal to those of the second magnetic base, and the width of the first magnetic base is 1.5 to 2 times of that of the second magnetic base.

Preferably, in the multi-connected high-power strip inductor, the connecting terminal is a copper terminal.

Preferably, in the multi-connected high-power inductor, the first magnetic base and the second magnetic base are both made of soft magnetic materials.

Preferably, in the multi-connected high-power exhaust sensor, the cover plate is made of plastic.

The utility model has the advantages that: the utility model discloses a simple structure is felt to the high-power row of multiple-unit system, makes things convenient for shaping, production and equipment, establishes the draw-in groove structure on first magnetism base and can firmly fix two connecting terminal, and the pine takes off when avoiding mechanical oscillation. Compare current coil type power inductance, the utility model discloses a big power of multiple-unit system is arranged and is felt the structure simpler, has saved complex construction such as coil, pin, and it is big to have reduced the wire winding degree of difficulty that exists when the power inductance of the small size model of production equipment, the difficult problem of pin welding. In addition, the integrated connecting terminal is adopted, the connecting arm of the integrated connecting terminal is used for forming a coil of the high-power inductor, and the connecting end part of the integrated connecting terminal is used for forming a welding pin which is electrically connected with a circuit on a main board of an electronic instrument. Meanwhile, by arranging the plurality of connecting terminals, the power inductors of the plurality of monomers are integrated on one magnetic core body, so that the integrated effect is achieved, larger current load can be borne, and the installation space and the installation time on the electronic circuit board are saved.

Drawings

FIG. 1 is an exploded view of the present invention;

fig. 2 is a three-dimensional structure diagram of the first magnetic base and the second magnetic base of the present invention after being fixedly connected;

fig. 3 is a three-dimensional structure diagram of the connection terminal of the present invention after assembly;

fig. 4 is an enlarged view of the portion "ii" in fig. 1.

Detailed Description

For a further understanding of the invention, reference is made to the following description taken in conjunction with the accompanying drawings and specific examples, in which:

in the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

As shown in fig. 1 to 4, the embodiment of the present invention provides a multi-connected high power discharge inductor, which includes a cover plate 4, a first magnetic base 1 and a second magnetic base 2 fixed relatively to each other, wherein the first magnetic base 1 has a slot structure along one side of the second magnetic base 2, and at least two connecting terminals 3 arranged along the length direction of the first magnetic base 1 are disposed in the slot structure. An air gap 5 is arranged between the opposite connection end surfaces of the first magnetic base 1 and the second magnetic base 2, and the lower surface of the cover plate 4 is provided with adhesive glue. The length and width of the cover plate 4 are matched with the length and width of the magnetic core body formed by the first magnetic base 1 and the second magnetic base 2 which are fixedly connected together. The clamping groove structure comprises a strip-shaped sinking groove 11 which is formed in one side face, opposite to the second magnetic base 2, of the first magnetic base 1, the strip-shaped sinking groove 11 is formed in the mounting face 10 of the first magnetic base 1, and an upper step 12 is formed in the end edge of the upper surface, away from the mounting face 10, of the first magnetic base 1. At least two terminal mounting bosses 13 are arranged on the side wall of the strip-shaped sunken groove 11, a partition plate 14 is arranged between the adjacent mounting bosses 13, and terminal slots 15 are formed between the end surfaces of two sides of the partition plate 14 and the corresponding end surfaces of the adjacent mounting bosses 13.

Specifically, in the preferred embodiment of the present invention, the first magnetic base 1 and the second magnetic base 2 are both strip-shaped magnetic bases, the second magnetic base 2 is a smooth surface on a side end surface opposite to the first magnetic base 1, and the second magnetic base 2 and the opposite connection end surface of the first magnetic base 1 are connected by adhesive glue. As shown in fig. 3, the connection terminal 3 includes a connection arm 31, wherein both ends of the connection arm 31 are bent toward the vertical direction to form insertion portions 32, and the ends of the two insertion portions 32 are bent in the horizontal direction and are provided with connection end portions 33 extending in opposite directions. The connecting arm 31 is assembled in the installation gap between the upper step 12 and the mounting boss 13, the two insertion parts 32 of the connecting arm 31 are inserted into the terminal insertion slots 15 at the two ends of the mounting boss 13, one connecting end part 33 is bent and attached to the installation surface of the first magnetic base 1, and the other connecting end part 33 is bent and attached to the installation surface of the second magnetic base 2.

Specifically, the connection arm 31 constitutes a coil of the power inductor, and the connection end portion 33 constitutes a soldering pin electrically connected to a wiring on the electronic instrument main board. The connecting arm 31, the mating part 32 and the connecting end part 33 are integrally formed. The bending connection of the integrally formed connection terminal 3, specifically the bending connection between the insertion portions 32 at the two ends and the connection end portions 33 at the corresponding ends, has good bending performance. Before assembly, the connecting end portions 33 of the corresponding mating parts 32 are connected in a straight manner, and there is no bending structure shown in fig. 3, after the mating parts 32 at both ends of the connecting terminal 3 are assembled from the open slot openings of the terminal slot 15 and the connecting arm 31 is assembled in the installation gap between the upper step 12 and the installation boss 13, the connecting end portions 33 at the lower ends of the two mating parts 32 are bent in the horizontal direction, so that the connecting end portion 33 at one end is attached to the installation surface 10 (lower surface shown in the figure) of the first magnetic base 1, and the other connecting end portion 33 is attached to the installation surface (lower surface shown in the figure) of the second magnetic base 2 in a bending manner.

Specifically, in the preferred embodiment of the present invention, the length and thickness of the first magnetic base 1 are equal to the length and thickness of the second magnetic base 2, respectively, and the width of the first magnetic base 1 is 1.5 to 2 times the width of the second magnetic base 2. Connecting terminal 3 is the terminal of copper product, and cover plate 4 is the cover plate of plastic material, and its lower surface is equipped with the adhesive, can conveniently paste the magnetic core body surface that constitutes after bonding is fixed by first magnetism base 1 and second magnetism base 2, avoids the dust to fall into air gap 5, has also further increased the bonding anchorage between first magnetism base 1 and the second magnetism base 2 simultaneously.

In the preferred embodiment of the present invention, the adhesive used for bonding the opposite connecting end surfaces of the second magnetic base 2 and the first magnetic base 1 is adhesive having a heat conducting function. Further, in the preferred embodiment of the present invention, the number of the connection terminals 3 is two, and they are not conductively connected to each other. In some other embodiments, the number of the connection terminals 3 may be set to be plural, such as 3, 4, 5, 6, 7, 8, etc., and accordingly, the lengths of the second magnetic base 2 and the first magnetic base 1 are also adaptively extended. In the preferred embodiment of the present invention, the number of the connection terminals 3 is set to 6, and accordingly, the terminal settling bosses 13 in the bar-shaped sinking grooves 11 are also set to 6.

To sum up, the utility model discloses a simple structure is felt to the high-power row of multiple-unit type, makes things convenient for shaping, production and equipment, establishes the draw-in groove structure on first magnetism base and can firmly fix two connecting terminal, and the pine takes off when avoiding mechanical oscillation. Compare current coil type power inductance, the utility model discloses a big power of multiple-unit system is arranged and is felt the structure simpler, has saved complex construction such as coil, pin, and it is big to have reduced the wire winding degree of difficulty that exists when the power inductance of the small size model of production equipment, the difficult problem of pin welding. In addition, the integrated connecting terminal is adopted, the connecting arm of the integrated connecting terminal is used for forming a coil of the high-power inductor, and the connecting end part of the integrated connecting terminal is used for forming a welding pin which is electrically connected with a circuit on a main board of an electronic instrument. Meanwhile, by arranging the plurality of connecting terminals, the power inductors of the plurality of monomers are integrated on one magnetic core body, so that the integrated effect is achieved, larger current load can be borne, and the installation space and the installation time on the electronic circuit board are saved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the foregoing embodiments and the description with reference to the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that all such changes and modifications fall within the scope of the invention as claimed, which is defined by the claims appended hereto and their equivalents.

Claims

1. The utility model provides a sense is arranged to big power of multiple connection formula, its characterized in that, including cover plate (4) and the first magnetism base (1) and the second magnetism base (2) of controlling relative rigid coupling, first magnetism base (1) is relative one side edge of second magnetism base (2) has seted up the draw-in groove structure, be equipped with two at least along connecting terminal (3) of the rectangular shape that the length direction of first magnetism base (1) was arranged in the draw-in groove structure be equipped with air gap (5) between the relative connection terminal surface of first magnetism base (1) with second magnetism base (2), the lower surface of cover plate (4) is equipped with the adhesive, cover plate (4) length and width size and rigid coupling together first magnetism base (1) with the length and width size looks adaptation of the magnetic core body that second magnetism base (2) constitutes, the draw-in groove structure includes one set up first magnetism base (1) is relative second magnetism base (2) The heavy groove (11) of bar of a side, should heavy groove (11) of bar certainly install face (10) of first magnetism base (1) are seted up, in first magnetism base (1) is deviating from this the shaping of the end edge department of the upper surface of installation face (10) has upper step (12), it settles boss (13) to be equipped with two at least terminals on the groove lateral wall of the heavy groove of bar (11), and is adjacent settle and be equipped with baffle (14) between boss (13), the both sides terminal surface of baffle (14) and adjacent the shaping has terminal slot (15) between the corresponding terminal surface of settling boss (13).

2. The multi-connected high-power inductor according to claim 1, wherein the first magnetic base (1) and the second magnetic base (2) are both strip-shaped magnetic bases, the end surface of the second magnetic base (2) on one side opposite to the first magnetic base (1) is a smooth surface, and the opposite connection end surfaces of the second magnetic base (2) and the first magnetic base (1) are connected through adhesive glue.

3. The multi-split high power bank inductor according to claim 1, characterized in that the connection terminal (3) comprises a connection arm (31), the two ends of the connecting arm (31) are bent towards the vertical direction to form inserting parts (32), the tail ends of the two inserting parts (32) are bent relatively in the horizontal direction and are provided with connecting end parts (33) with opposite extending directions, the connecting arm (31) is fitted in a mounting gap between the upper step (12) and the seating boss (13), the two inserting parts (32) of the connecting arm (31) are inserted into the terminal slots (15) at the two ends of the mounting boss (13), one connecting end part (33) is bent and attached to the mounting surface of the first magnetic base (1), and the other connecting end part (33) is bent and attached to the mounting surface of the second magnetic base (2).

4. The multi-connected high-power inductor according to claim 1, wherein the length and thickness of the first magnetic base (1) are equal to those of the second magnetic base (2), and the width of the first magnetic base (1) is 1.5-2 times that of the second magnetic base (2).

5. The multi-split high power bus bar according to claim 1, wherein the connection terminals (3) are copper terminals.

6. The multi-split high power inductor according to claim 1, wherein the first magnetic base (1) and the second magnetic base (2) are both made of soft magnetic material.

7. The multi-connected high power inductor according to claim 1, wherein the cover sheet (4) is a plastic cover sheet.