CN216015013U

CN216015013U - Common mode inductor

Info

Publication number: CN216015013U
Application number: CN202121938351.9U
Authority: CN
Inventors: 陆韦亨
Original assignee: Guangdong Yukun Health Technology Co ltd
Current assignee: Guangdong Yukun Health Technology Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-03-11
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a common mode inductor, which relates to the technical field of inductors and comprises a magnetic core, two coils wound on the magnetic core, a heat conducting rubber seat and a metal cooling plate, wherein the magnetic core is of a closed frame-shaped structure, the two coils are arranged on two sides of the magnetic core in parallel, the winding directions of the two coils are opposite, a groove is formed in the top of the heat conducting rubber seat, the magnetic core is arranged in the groove, two end faces of the magnetic core are in contact with the inner wall of the heat conducting rubber seat, the outer wall of the heat conducting rubber seat is provided with the metal cooling plate, and a plurality of strip-shaped buffer air cushions are arranged on the outer side of the metal cooling plate. The both ends face of magnetic core all contacts with the inner wall of heat conduction glue seat, has improved the area of contact of magnetic core and heat conduction glue seat, makes the heat conduction effect of heat conduction glue seat better, and the heat transmission that the seat produced common mode inductor is glued to the heat conduction gives the metal heating panel, gives off the heat to the air through the metal heating panel, has improved common mode inductor's radiating efficiency, has prolonged common mode inductor's life.

Description

Common mode inductor

Technical Field

The utility model relates to the technical field of inductors, in particular to a common-mode inductor.

Background

An Inductor (Inductor) is a component that can convert electrical energy into magnetic energy for storage. The inductor is similar in structure to a transformer, but has only one winding. The inductor has an inductance that only impedes the change in current. If the inductor is in a state where no current is passing, it will try to block the current from flowing through it when the circuit is on; if the inductor is in a current passing state, the inductor will try to keep the current unchanged when the circuit is opened. The inductor is also called choke, reactor, dynamic reactor, the common mode inductor in the inductor belongs to the electronic components commonly used in the electrical apparatus field, current common mode inductor includes magnetic core, coil and support, and the bottom of magnetic core is installed on the support, and the support is fixed on the circuit board to be connected the both ends and the circuit board of coil through the stitch that is fixed in on the support. The existing chip winding I-shaped inductor has poor heat dissipation effect, iron sheet heat on the inductor is difficult to dissipate after long-time use, and plastic parts on and around the inductor are easily damaged, so that the inductor is damaged and cannot be normally used, and the service life of the inductor is shortened.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings in the prior art, the present invention provides a common mode inductor to solve the above-mentioned problems in the prior art.

In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows: the utility model provides a common mode inductor, includes the magnetic core and two coils of coiling on the magnetic core, still includes heat conduction glue seat and metal heating panel, the magnetic core is closed frame column structure, two the coil sets up side by side the both sides of magnetic core and two the winding opposite direction of coil, the top of heat conduction glue seat is seted up flutedly, the magnetic core sets up in the recess, the both ends face of magnetic core all with the inner wall contact of heat conduction glue seat, the outer wall of heat conduction glue seat is provided with metal heating panel, metal heating panel's the outside is provided with a plurality of bar buffering air cushions.

The technical effect who adopts above-mentioned scheme does, the both ends face of magnetic core all glues the inner wall contact of seat with the heat conduction, the area of contact of magnetic core and heat conduction glue seat has been improved, the heat conduction effect that makes the heat conduction glue seat is better, the heat transfer that the seat produced common mode inductor is glued to the heat conduction gives metal heating panel, give off the heat to the air through metal heating panel, the radiating efficiency of common mode inductor has been improved, avoid a large amount of silts of heat to be difficult to give off on the magnetic core, cause the problem of inductor and plastic spare damage on every side, common mode inductor's life has been prolonged.

Furthermore, two coil grooves are symmetrically formed in the bottom of the groove, and the two coils are respectively matched in the two coil grooves.

The technical effect who adopts above-mentioned scheme does, and magnetic core and coil adaptation are at recess and coil inslot respectively, make the inductor embedding in the heat conduction rubber base, avoid coil and recess bottom to offset and make the magnetic core unsettled in the recess to the joint strength of magnetic core and heat conduction rubber base has been improved, and then has improved the anti vibration ability of magnetic core.

Furthermore, wiring holes are formed in two ends of the inner portion of the coil slot in a penetrating mode, and the first connecting section and the second connecting section of the coil penetrate through the two wiring holes of the corresponding coil slot respectively.

The technical effect of adopting above-mentioned scheme does, is convenient for two linkage segments of coil to pass the heat conduction rubber base through the wiring hole and insert in using electrical apparatus.

Furthermore, the bottom of the heat-conducting rubber base is detachably provided with four binding posts, and the four binding posts are in one-to-one correspondence with the four wiring holes.

The technical effect who adopts above-mentioned scheme does, and the connection section and the terminal connection of coil improve the joint strength of inductor through the terminal with the inductor access with electrical apparatus in, can avoid the connection section of coil to drop because of the vibration.

Further, the wiring hole is provided with an internal thread, one end of the wiring terminal is provided with an external thread, and one end of the wiring terminal is arranged in the wiring hole in a penetrating mode and is in threaded connection with the heat-conducting rubber base.

The technical effect of adopting the scheme is that the installation and the disassembly of the wiring terminal are convenient.

Furthermore, a connector lug is fixed at one end of the wiring terminal, which is positioned in the connecting hole, the diameter of the connector lug is smaller than that of the connecting hole, and the first connecting section and the second connecting section of the coil are respectively connected with different connector lugs.

The technical effect who adopts above-mentioned scheme does, pulls down the terminal, is convenient for be connected the wire connection section and the connector lug of coil, then installs the terminal on the heat conduction rubber base through the mode of screw thread again to make the coil be connected simple swift with the terminal more.

Furthermore, two inner walls of the heat-conducting rubber seat, which are close to the coil, are provided with limiting buffer air cushions, and two sides of the magnetic core extrude the limiting buffer air cushions to generate deformation transition to be matched in the grooves.

The technical effect who adopts above-mentioned scheme does, has further improved the magnetic core and has glued the cooperation intensity of seat with the heat conduction, avoids external vibration to lead to the magnetic core to rock in the heat conduction glue seat, can cushion external vibration through the elasticity of spacing buffering air cushion simultaneously, further improves the anti vibration ability of inductor.

Furthermore, the limiting buffer air cushion is in a right trapezoid shape, and the inclined surface of the limiting buffer air cushion faces upwards and is close to the coil.

The technical effect who adopts above-mentioned scheme does, through the guide effect on spacing buffering air cushion inclined plane, is convenient for with magnetic core transition adaptation in the recess.

The utility model has the beneficial effects that: the both ends face of magnetic core all with the inner wall contact of heat conduction glue seat, the area of contact of magnetic core and heat conduction glue seat has been improved, the heat conduction effect that makes heat conduction glue seat is better, the heat transmission that heat conduction glue seat produced common mode inductor gives the metal heating panel, give off the air with the heat through the metal heating panel, the radiating efficiency of common mode inductor has been improved, it is difficult to give off on the magnetic core to avoid a large amount of siltation of heat, cause the problem of inductor and plastic spare damage on every side, common mode inductor's life has been prolonged, simultaneously through the vibration that the external area of bar buffering air cushion was given heat conduction glue seat, the anti vibration ability of inductor is improved.

Drawings

FIG. 1 is a top view of a common mode inductor according to the present invention;

FIG. 2 is a front view of a common mode inductor of the present invention;

FIG. 3 is a perspective view of a thermal conductive rubber base in the common mode inductor according to the present invention;

FIG. 4 is a schematic structural diagram of a stud in the common mode inductor according to the present invention;

the magnetic core comprises a magnetic core 1, a magnetic core 2, a coil 3, a heat conducting rubber seat 4, a metal heat dissipation plate 5, a groove 6, a strip-shaped buffer air cushion 7, a coil groove 8, a wiring hole 9, a wiring terminal 10, a wiring head 11 and a limiting buffer air cushion.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the utility model as defined and defined in the appended claims, and all matters produced by the utility model using the inventive concept are protected.

As shown in fig. 1 to 4, a common mode inductor, including magnetic core 1 and two coils 2 of coiling on magnetic core 1, still include heat conduction glue seat 3 and metal heat dissipation plate 4, magnetic core 1 is closed frame column structure, two coils 2 set up side by side in the both sides of magnetic core 1 and two coils 2's coiling opposite direction, recess 5 is seted up at the top of heat conduction glue seat 3, magnetic core 1 sets up in recess 5, the both ends face of magnetic core 1 all contacts with the inner wall of heat conduction glue seat 3, the outer wall of heat conduction glue seat 3 is provided with metal heat dissipation plate 4, the outside of metal heat dissipation plate 4 is provided with a plurality of bar buffer air cushions 6. The both ends face of magnetic core 1 all glues the inner wall contact of seat 3 with the heat conduction, the area of contact of magnetic core 1 and heat conduction glue seat 3 has been improved, make the heat conduction effect of heat conduction glue seat 3 better, the heat transfer that heat conduction glue seat 3 produced common mode inductor gives metal heating panel 4, give off the air with the heat through metal heating panel 4, common mode inductor's radiating efficiency has been improved, it is difficult to give off on magnetic core 1 to avoid a large amount of silts of heat, cause the problem of inductor and plastic spare damage on every side, common mode inductor's life has been prolonged, simultaneously through the vibration that the external vibration of taking for heat conduction glue seat of bar buffer air cushion 6 buffers, the anti vibration capability of inductor is improved.

Further, as shown in fig. 3, two coil slots 7 are symmetrically formed in the bottom of the groove 5, and the two coils 2 are respectively fitted in the two coil slots 7. Coil 2 convolutes on magnetic core 1 after, coil 2's bottom and top will bulge magnetic core 1, directly place magnetic core 1 in recess 5, the bottom surface contact that will lead to magnetic core 1 and recess 5 makes magnetic core 1 unsettled, lead to heat conduction glue seat 3 to receive and easily rock in recess 5 after the external world bumps, magnetic core 1 and coil 2 adaptation respectively are in recess 5 and coil groove 7, make the inductor embedding in heat conduction glue seat 3, avoid coil 2 and recess 5 bottom to offset and make magnetic core 1 unsettled in recess 5, thereby the adaptation intensity of magnetic core 1 with heat conduction glue seat 3 has been improved, and then magnetic core 1's shock resistance has been improved.

Further, refer to fig. 3 and 4, wiring hole 8 has all been run through and has been seted up at the inside both ends of coil groove 7, coil 2's first linkage segment and second linkage segment pass from two wiring holes 8 that correspond coil groove 7 respectively, heat conduction glue base 3's bottom detachable is provided with four terminals 9, four terminals 9 and four wiring hole 8 one-to-one, wiring hole 8 is equipped with the internal thread, terminal 9's one end is equipped with the external screw thread, terminal 9's one end is worn to establish in wiring hole 8 and is glued base 3 threaded connection with heat conduction, terminal 9 is located the one end of connecting hole 8 and is fixed with connector lug 10, connector lug 10's diameter is less than wiring hole 8's diameter, coil 2's first linkage segment and second linkage segment are connected with different connector lug 10 respectively. Pull down terminal 9, be convenient for pass wiring hole 8 with the wiring section of coil 2 and be connected with connector lug 10, then install terminal 9 on heat conduction rubber base 3 through the threaded mode again to make coil 2 and terminal 9 be connected simple swift more, insert the inductor through terminal 9 with electrical apparatus, improve the joint strength of inductor, can avoid the wiring section of coil 2 to drop because of the vibration.

Further, referring to fig. 3, two inner walls of the heat-conducting rubber seat 3, which are close to the coil 2, are provided with limiting buffer air cushions 11, two sides of the magnetic core 1 extrude the limiting buffer air cushions 11 to generate deformation transition fit in the grooves 5, so that the matching strength of the magnetic core 1 and the heat-conducting rubber seat 3 is further improved, the magnetic core 1 is prevented from shaking in the heat-conducting rubber seat 3 due to external vibration, and meanwhile, the external vibration can be buffered through the elasticity of the limiting buffer air cushions 11, so that the anti-vibration capability of the inductor is further improved; the limiting buffer air cushion 11 is in a right trapezoid shape, and the inclined surface of the limiting buffer air cushion 11 faces upwards and is close to the coil 2. Through the guiding effect of the inclined plane of the limiting buffer air cushion 11, the magnetic core 1 is convenient to gradually extrude the limiting buffer air cushion 11 to enable the magnetic core 1 to be in transition fit in the groove 5.

While there have been shown and described what are at present considered the fundamental principles of the utility model and its essential features and advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be suitably combined to form other embodiments as will be apparent to those skilled in the art.

Claims

1. The utility model provides a common mode inductor, includes magnetic core (1) and two coils (2) of coiling on magnetic core (1), its characterized in that still includes heat conduction glue seat (3) and metal cooling plate (4), magnetic core (1) is closed frame column structure, two coil (2) set up side by side the both sides and two of magnetic core (1) the winding opposite direction of coil (2), recess (5) are seted up at the top of heat conduction glue seat (3), magnetic core (1) sets up in recess (5), the both ends face of magnetic core (1) all with the inner wall contact of heat conduction glue seat (3), the outer wall of heat conduction glue seat (3) is provided with metal cooling plate (4), the outside of metal cooling plate (4) is provided with a plurality of bar buffering air cushions (6).

2. A common-mode inductor according to claim 1, characterized in that the bottom of the recess (5) is symmetrically provided with two coil slots (7), and the two coils (2) are respectively fitted in the two coil slots (7).

3. A common-mode inductor according to claim 2, characterized in that both ends of the coil slot (7) are opened with wiring holes (8), and the first connection section and the second connection section of the coil (2) are respectively passed through the two wiring holes (8) of the corresponding coil slot (7).

4. A common-mode inductor according to claim 3, characterized in that the bottom of the heat-conducting rubber base (3) is detachably provided with four terminals (9), and the four terminals (9) correspond to the four wiring holes (8) one by one.

5. A common mode inductor according to claim 4, characterized in that the wiring hole (8) is provided with an internal thread, one end of the wiring post (9) is provided with an external thread, and one end of the wiring post (9) is arranged in the wiring hole (8) and is in threaded connection with the heat-conducting rubber base (3).

6. A common-mode inductor according to claim 5, characterized in that the terminals (9) are fixed with terminals (10) at the ends located in the terminal holes (8), the diameter of the terminals (10) is smaller than the diameter of the terminal holes (8), and the first and second connection sections of the coil (2) are connected with different terminals (10).

7. A common-mode inductor according to claim 1, characterized in that the two inner walls of the heat-conducting rubber base (3) close to the coil (2) are provided with limit buffer air cushions (11), and the two sides of the magnetic core (1) press the limit buffer air cushions (11) to generate deformation transition fit in the grooves (5).

8. A common-mode inductor according to claim 7, characterized in that the limiting buffer cushions (11) are in the shape of right trapezoids, the slopes of the limiting buffer cushions (11) facing upwards and being arranged close to the coil (2).