CN220252967U

CN220252967U - Inductor shell and inductor

Info

Publication number: CN220252967U
Application number: CN202321844885.4U
Authority: CN
Inventors: 吴靖中; 吴俊益
Original assignee: Zhuhai Gang Song Electronics Co ltd
Current assignee: Zhuhai Gang Song Electronics Co ltd
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2023-12-26
Anticipated expiration: 2033-07-13

Abstract

The utility model discloses an inductor shell and an inductor, wherein the inductor shell comprises an upper cover and a base which are connected with each other, the base is provided with a containing groove for containing a magnetic core, the bottom of the base is also provided with a wire leg outlet communicated with the containing groove, the bottom of the base is also provided with a guide block and a wire leg fixing part, the guide block is positioned in the wire leg outlet, the guide block is provided with a guide cambered surface, a coil is wound around the periphery of the magnetic core, after the coil and the magnetic core are placed in the containing groove together, the wire leg of the coil penetrates out from the wire leg outlet and is sequentially attached to the bottom surface of the guide cambered surface and the base, and finally the coil is wound on the wire leg fixing part, the guide cambered surface of the guide block enlarges the turning angle of the wire leg, so that the inductor impedance caused by serious bending of the wire leg is avoided, the performance of the inductor is improved, the turning angle of the wire leg is enlarged, the phenomenon that the wire leg is broken in the production or use process of the inductor is avoided, the rejection rate in the production is reduced, and the service life of the inductor is prolonged.

Description

Inductor shell and inductor

Technical Field

The utility model relates to the technical field of electronic components, in particular to an inductor shell and an inductor.

Background

The inductor in the prior art generally comprises a shell, a magnetic core and a coil wound on the periphery of the magnetic core, the wire feet of the coil are required to be bent to be led out of the shell, and for processing convenience, part of the inductor is led out after the wire feet of the coil are directly bent through holes in the surface of the shell, so that the wire feet of the coil are severely bent, the impedance of the inductor is increased, the performance of the inductor is affected, the wire feet are broken easily, and the inductor is scrapped.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide an inductor shell, which can prevent the inductor impedance from being increased caused by severe bending of the wire leg of a coil when the inductor is manufactured, and improve the performance of the inductor.

In order to solve the problems, the technical scheme adopted by the utility model is as follows: the utility model provides an inductor shell, includes interconnect's upper cover and base, and the holding tank that is used for holding the magnetic core is offered to the base, and the line foot export with the holding tank intercommunication has still been offered to the bottom of base, and the bottom of base still is equipped with guide block and line foot fixed part, and the guide block is located line foot export, and the guide block has the direction cambered surface, and the line foot of coil can be worn out from line foot export to laminate in proper order in the bottom surface of direction cambered surface and base, finally around locating line foot fixed part.

Compared with the prior art, the utility model has the beneficial effects that: when the wire feet of the coil are led out from the base and wound on the wire foot fixing part, after the wire feet of the coil penetrate out from the wire foot outlet, the wire feet are sequentially attached to the bottom surfaces of the guide cambered surface and the base, the guide cambered surface of the guide block enlarges the turning angle of the wire feet, so that the increase of the impedance of the inductor caused by serious bending of the wire feet can be avoided, the performance of the inductor is improved, in addition, the phenomenon that the wire feet are broken in the production or use process of the inductor can be avoided by enlarging the turning angle of the wire feet, the rejection rate in production can be reduced, and the service life of the inductor can be prolonged.

In the inductor housing, the bottom of the base is provided with a plane area, and the wire feet can be attached to the plane area.

According to the inductor shell, the plane area is provided with the groove, and the wire feet are clamped in the groove and protrude downwards from the lower surface of the plane area.

In the inductor shell, the side part of the base is provided with the chute, the chute is communicated with the groove and is inclined from bottom to top outwards; the thread foot passes through the thread foot outlet and is attached to the guide cambered surface, then is sequentially clamped in the groove and the chute, and finally is wound on the thread foot fixing part.

According to the inductor shell, the heat dissipation structures are arranged on the two end faces of the upper cover and the base.

In the inductor housing, the upper cover and the base are made of the same material and are made of thermosetting resin.

In the inductor housing, the top end of the upper cover is planar.

The utility model also provides an inductor which comprises a magnetic core, a coil and the inductor shell, wherein the coil is wound on the periphery of the magnetic core, and the inductor at least has all the beneficial effects brought by the inductor shell due to the fact that the inductor shell is adopted.

The utility model is described in further detail below with reference to the drawings and the detailed description.

Drawings

FIG. 1 is a schematic diagram of an inductor housing according to an embodiment of the present utility model;

FIG. 2 is a second schematic diagram of an inductor housing according to an embodiment of the present utility model;

FIG. 3 is a third schematic diagram of an inductor housing according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of an inductor housing according to an embodiment of the present utility model.

Reference numerals illustrate: 100 upper cover, 200 base, 210 guide block, 220 wire pin outlet, 211 guide cambered surface, 230 wire pin fixing part, 300 wire pin, 240 plane area, 250 groove, 260 chute and 400 heat dissipation structure.

Detailed Description

The following describes embodiments of the present utility model in detail, referring to fig. 1 to 4, the embodiments of the present utility model provide an inductor housing, which includes an upper cover 100 and a base 200 connected to each other, the base 200 is provided with a receiving slot for receiving a magnetic core, the bottom of the base 200 is further provided with a wire leg outlet 220 communicating with the receiving slot, the bottom of the base 200 is further provided with a guide block 210 and a wire leg fixing portion 230, the guide block 210 is located in the wire leg outlet 220, and the guide block 210 has a guide arc surface 211, referring to fig. 1, the wire leg 300 of the coil can pass through the wire leg outlet 220 and sequentially adhere to the guide arc surface 211 and the bottom surface of the base 200, and finally is wound around the wire leg fixing portion 230.

Further, referring to fig. 1 and 4, the stitch fixing portion 230 and the guide block 210 are respectively located at two sides of the bottom of the base 200, the number of stitch fixing portions 230 and guide blocks 210 may be two, two sets of stitch fixing portions 230 are respectively located at two ends of the base 200, and similarly, two sets of guide blocks 210 are respectively located at two ends of the base 200, that is, one set of guide blocks 210 and one set of stitch fixing portions 230 are respectively located at two sides of each end of the base 200. In fig. 1, the left end of the wire leg 300 is not illustrated, the right end of the wire leg 300 is illustrated, referring to fig. 1, when the wire leg 300 of the coil in the present application passes through the wire leg outlet 220 and is wound on the guide block 210, the guide cambered surface 211 of the guide block 210 can enlarge the turning angle of the wire leg 300, so that the increase of the inductor impedance caused by serious bending of the wire leg 300 can be avoided, the performance of the inductor can be improved, and the phenomenon that the wire leg breaks of the inductor occurs in the production or use process can be avoided by enlarging the turning angle of the wire leg 300, the rejection rate in production can be reduced, and the service life of the inductor can be prolonged.

Still further, referring to fig. 2, the bottom of the base 200 has a planar area 240, the wire leg 300 can be attached to the planar area 240, the planar area 240 is provided with a groove 250, the wire leg 300 is clamped in the groove 250 and protrudes downwards from the lower surface of the planar area 240, the structure can enable the automatic feeding device to stably place the inductor on the PCB, which is beneficial to realizing the automatic chip mounting production of the inductor, improving the production efficiency, and the base 200 is used for insulation between the inductor and the PCB, so that possible short circuit problem caused by high voltage between the inductor and the PCB is avoided.

Further, referring to fig. 1, the side portion of the base 200 is provided with a chute 260, the chute 260 is communicated with the groove 250, and the chute 260 is inclined from bottom to top, referring to fig. 3, after the coil wire leg 300 passes through the wire leg outlet 220, the coil wire leg 300 can be sequentially clamped to the groove 250 and the chute 260, and finally wound around the wire leg fixing portion 230, the tail end of the wire leg 300 is fixed to the wire leg fixing portion 230, and the fixing method may be that the wire leg 300 is clamped to the chute 260 and then is barbed to the wire leg fixing portion 230; referring to fig. 4, both end surfaces of the upper cover 100 and the base 200 are respectively provided with a heat dissipation structure 400, the heat dissipation structures 400 can be heat dissipation holes or heat dissipation fins and the like, and can be matched with an original fan of equipment to realize a heat dissipation function, when the equipment and the inductor work, the fan can drive air to circulate, so that hot air in the inductor can be dispersed through the heat dissipation structures at both ends to cool the inside of the inductor, and further, the upper cover 100 and the base 200 in the application are made of the same material and are thermosetting resin, have good high temperature resistance and insulation performance, can avoid the high pressure resistance problem of a general power inductor device behind a PCB, and can resist environmental high pressure by more than 10KV, and particularly, the thermosetting resin can be phenolic resin; further, referring to fig. 1 to 4, the top end of the upper cover 100 is planar, and this structure can enable the automatic feeding device to adsorb the inductor, which is beneficial to realizing the automatic chip production of the inductor and improving the production efficiency.

Further, an embodiment of the present utility model provides an inductor, which includes a magnetic core, a coil, and an inductor housing as described above, wherein the magnetic core is located in the accommodating groove, the coil is wound around the periphery of the magnetic core, and the wire leg of the coil extends from the wire leg outlet 220 on the base. Since the inductor in this embodiment employs the above-described inductor housing, it has at least all the advantageous effects that the above-described inductor housing can bring.

It should be noted that, in the description of the present utility model, if an azimuth or positional relationship is referred to, for example, upper, lower, front, rear, left, right, etc., the azimuth or positional relationship is based on the azimuth or positional relationship shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be configured or operated in a specific azimuth, and should not be construed as limiting the present utility model.

In the description of the present utility model, a plurality means one or more, and a plurality means two or more, and it is understood that greater than, less than, exceeding, etc. does not include the present number, and it is understood that greater than, less than, within, etc. include the present number. If any, first or second, etc. are described for the purpose of distinguishing between technical features only and not for the purpose of indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. The inductor shell is characterized by comprising an upper cover (100) and a base (200) which are connected with each other, wherein the base (200) is provided with a containing groove for containing a magnetic core, the bottom of the base (200) is also provided with a wire leg outlet (220) communicated with the containing groove, the bottom of the base (200) is also provided with a guide block (210) and a wire leg fixing part (230), the guide block (210) is positioned in the wire leg outlet (220), and the guide block (210) is provided with a guide cambered surface (211);

the coil wire leg (300) can pass through the wire leg outlet (220), and is sequentially attached to the guide cambered surface (211) and the bottom surface of the base (200), and finally wound on the wire leg fixing part (230).

2. The inductor housing according to claim 1, characterized in that the bottom of the base (200) has a planar area (240), the leg (300) being conformable to the planar area (240).

3. The inductor housing according to claim 2, wherein the planar area (240) is provided with a recess (250), and the stub (300) is capable of being clamped to the recess (250) and protrudes downwards from the lower surface of the planar area (240).

4. An inductor housing according to claim 3, characterized in that the side of the base (200) is provided with a chute (260), the chute (260) being in communication with the recess (250) and the chute (260) being inclined from bottom to top outwards;

the thread residue (300) is penetrated out of the thread residue outlet (220) and is attached to the guiding cambered surface (211), then is sequentially clamped in the groove (250) and the chute (260), and finally is wound on the thread residue fixing part (230).

5. The inductor housing according to claim 1, wherein both end surfaces of the upper cover (100) and the base (200) are provided with heat dissipation structures (400).

6. The inductor housing according to claim 1, characterized in that the upper cover (100) and the base (200) are both made of thermosetting resin.

7. The inductor housing according to claim 1, characterized in that the top end of the upper cover (100) is planar.

8. An inductor comprising a magnetic core, a coil and an inductor housing according to any one of claims 1 to 7, the coil being wound around the outer periphery of the magnetic core.