CN211181929U

CN211181929U - Common mode inductor

Info

Publication number: CN211181929U
Application number: CN201922396051.1U
Authority: CN
Inventors: 肖俊杰
Original assignee: Guangdong Shunmeiwei Electrical Technology Co ltd
Current assignee: Guangdong Shunmeiwei Electrical Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-08-04
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a common mode inductance, including bottom plate and annular magnetic core, the top fixedly connected with mounting panel of bottom plate to the inside swing joint of the surface of annular magnetic core and mounting panel, the utility model relates to an electronic components technical field. This common mode inductance, set up the mounting groove with annular magnetic core looks adaptation through the inside of mounting panel, and the surface cover of annular magnetic core is equipped with common mode coil, the top swing joint of mounting panel has the apron, the top of mounting panel is seted up flutedly, and the global inner wall sliding connection with the recess of apron, common mode coil is located the surface cover of annular magnetic core and is equipped with two, and two common mode coils correspond the conjugation, utilize the structural design of mounting panel and bottom plate, can be convenient to install between common mode coil and the PCB board, can be convenient change when common mode coil appears damaging, and can not lead to the fact destruction to the PCB board after accomplishing to common mode coil change, the practical function is better.

Description

Common mode inductor

Technical Field

The utility model relates to an electronic components technical field specifically is a common mode inductance.

Background

The common mode inductor is also called as a common mode choke coil and is commonly used in a switching power supply of a computer for filtering common mode electromagnetic interference signals, in the design of a board card, the common mode inductor also plays a role in EMI filtering and is used for inhibiting electromagnetic waves generated by a high-speed signal line from radiating and emitting outwards, when common mode current flows through the coil, the common mode current has the same directivity and can generate a same-direction magnetic field in the coil to increase the inductive reactance of the coil, so that the coil is represented as high impedance and generates a strong damping effect, and the common mode current is attenuated so as to achieve the purpose of filtering.

Common mode inductance can all be applied to at present in some circuits and come the electromagnetic interference signal of filtering common mode, but all adopt the welded mode to the installation on common mode inductance and the PCB board usually, such connected mode appears damaging when needing to be changed in common mode inductance, need demolish common mode inductance from the PCB board, cause the damage to the PCB board easily, and the whole practical function of common mode electricity jar is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a common mode inductance has solved the installation on common mode inductance and the PCB board and has all adopted the welded mode, and such connected mode appears damaging when needing to be changed in common mode inductance, need demolish common mode inductance from the PCB board, causes the damage to the PCB board easily, the relatively poor problem of the whole practical function of common mode electricity jar.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a common mode inductor comprises a bottom plate and an annular magnetic core, wherein a mounting plate is fixedly connected to the top of the bottom plate, the surface of the annular magnetic core is movably connected with the inside of the mounting plate, a mounting groove matched with the annular magnetic core is formed in the mounting plate, a common mode coil is sleeved on the surface of the annular magnetic core, a cover plate is movably connected to the top of the mounting plate, movable rods are fixedly connected to the periphery of the bottom of the cover plate, the bottom ends of the movable rods are movably connected with the inside of the mounting plate, movable grooves are formed in the mounting plate, movable blocks are slidably connected to the inner walls of the movable grooves, the bottom ends of the movable rods penetrate through the movable grooves and extend into the movable grooves, one ends of the movable rods extending into the movable grooves are fixedly connected with the tops of the movable blocks, fixed plates are fixedly connected to the tops of the inner walls of the movable grooves, and the top end of the spring is fixedly connected with the bottom of the fixing plate.

Preferably, a surface of the movable rod is slidably coupled with an inside of the fixed plate, and an inner surface of the spring is slidably coupled with the surface of the movable rod.

Preferably, the top of mounting panel has seted up the spread groove to the inner wall sliding connection of the global and spread groove of apron.

Preferably, the surface cover that common mode coil is located annular magnetic core is equipped with two to two common mode coils correspond the conjugation, the recess with common mode coil looks adaptation is all seted up to the both sides of mounting groove inner wall.

Preferably, the front side and the rear side of the top of the cover plate are both provided with a lifting groove.

Preferably, the top and the bottom of the mounting plate are fixedly connected with connecting blocks, and threaded holes are formed in the connecting blocks.

Advantageous effects

The utility model provides a common mode inductance. Compared with the prior art, the method has the following beneficial effects:

(1) this common mode inductance, set up the mounting groove with annular magnetic core looks adaptation through the inside of mounting panel, and the surface cover of annular magnetic core is equipped with common mode coil, the top swing joint of mounting panel has the apron, the spread groove has been seted up at the top of mounting panel, and the global inner wall sliding connection with the spread groove of apron, common mode coil is located the surface cover of annular magnetic core and is equipped with two, and two common mode coils correspond the conjugation, the recess with common mode coil looks adaptation is all seted up to the both sides of mounting groove inner wall, utilize the structural design of mounting panel and bottom plate, can be convenient to install between common mode coil and the PCB board, can be convenient change when common mode coil appears damaging, and can not cause destruction to the PCB board after accomplishing to common mode coil change, the practical function is better.

(2) This common mode inductance, equal fixedly connected with movable rod all around through the apron bottom, and the bottom of movable rod and the inside swing joint of mounting panel, the movable groove has been seted up to the inside of mounting panel, and the inner wall sliding connection of movable groove has the movable block, the bottom of movable rod runs through the movable groove and extends to the inside of movable groove, and the movable rod extends to the one end of movable groove inside and the top fixed connection of movable block, the top fixedly connected with fixed plate of movable inslot wall, the top fixedly connected with spring of movable block, and the top of spring and the bottom fixed connection of fixed plate, utilize the cooperation of movable rod and spring, can be connected between apron and the mounting panel effectively, after accomplishing the change to the inside common mode coil of mounting panel, it is spacing effectively to common mode coil.

Drawings

Fig. 1 is a front view of the common mode inductor structure of the present invention;

fig. 2 is a cross-sectional view of the common mode inductor structure of the present invention;

fig. 3 is a side view of the internal structure of the common mode inductor of the present invention.

In the figure: 1-bottom plate, 2-annular magnetic core, 3-mounting plate, 4-mounting groove, 5-common mode coil, 6-cover plate, 7-movable rod, 8-movable groove, 9-movable block, 10-fixed plate, 11-spring, 12-connecting groove, 13-groove, 14-pulling groove and 15-connecting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a common mode inductor comprises a bottom plate 1 and an annular magnetic core 2, wherein the top of the bottom plate 1 is fixedly connected with a mounting plate 3, the top and the bottom of the mounting plate 3 are both fixedly connected with a connecting block 15, a threaded hole is formed in the connecting block 15, the top of the mounting plate 3 is provided with a connecting groove 12, the peripheral surface of a cover plate 6 is in sliding connection with the inner wall of the connecting groove 12, the surface of the annular magnetic core 2 is movably connected with the inner part of the mounting plate 3, a mounting groove 4 matched with the annular magnetic core 2 is formed in the mounting plate 3, a common mode coil 5 is sleeved on the surface of the annular magnetic core 2, the common mode coils 5 are sleeved on the surface of the annular magnetic core 2 and are correspondingly conjugated, grooves 13 matched with the common mode coils 5 are formed in both sides of the inner wall of the mounting groove 4, the top of the mounting plate 3 is movably connected with the cover plate 6, the periphery of the bottom of the cover plate 6 is fixedly connected with movable rods 7, the surface of each movable rod 7 is connected with the inside of the fixed plate 10 in a sliding way, the inner surface of the spring 11 is connected with the surface of the movable rod 7 in a sliding way, the bottom end of the movable rod 7 is movably connected with the inside of the mounting plate 3, the inside of the mounting plate 3 is provided with a movable groove 8, and the inner wall of the movable groove 8 is connected with a movable block 9 in a sliding way, the bottom end of the movable rod 7 penetrates through the movable groove 8 and extends to the inner part of the movable groove 8, and one end of the movable rod 7 extending into the movable groove 8 is fixedly connected with the top of the movable block 9, the top of the inner wall of the movable groove 8 is fixedly connected with a fixed plate 10, the top of the movable block 9 is fixedly connected with a spring 11, and the top end of the spring 11 is fixedly connected with the bottom of the fixing plate 10, while those not described in detail in this specification are well known in the art.

During the use, carry pull-up groove 14 through apron 6 top and upwards pull apron 6, apron 6 bottom surrounding movable rod 7 upward movement in the inside movable groove 8 of mounting panel 3, place the common mode inductance in mounting groove 4 at mounting panel 3 top, two common mode coils 5 on common mode inductance surface are placed in two recesses 13, then loosen apron 6, under the elastic action of spring 11, promote movable block 9 and keep away from fixed plate 10, make movable rod 7 downstream in movable groove 8, movable rod 7 drives apron 6 and gets into in spread groove 12, the completion is to the installation of the inside common mode inductance of mounting panel 3, connecting block 15 through 1 top of bottom plate and bottom both sides utilizes the screw to carry out fixed mounting with the surface of PCB board at last.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a common mode inductance, includes bottom plate (1) and annular magnetic core (2), the top fixedly connected with mounting panel (3) of bottom plate (1) to the inside swing joint of the surface of annular magnetic core (2) and mounting panel (3), its characterized in that: the mounting plate is characterized in that a mounting groove (4) matched with the annular magnetic core (2) is formed in the mounting plate (3), a common mode coil (5) is sleeved on the surface of the annular magnetic core (2), a cover plate (6) is movably connected to the top of the mounting plate (3), movable rods (7) are fixedly connected to the periphery of the bottom of the cover plate (6), the bottom end of each movable rod (7) is movably connected with the inside of the mounting plate (3), a movable groove (8) is formed in the mounting plate (3), a movable block (9) is slidably connected to the inner wall of each movable groove (8), the bottom end of each movable rod (7) penetrates through the corresponding movable groove (8) and extends into the corresponding movable groove (8), one end of each movable rod (7) extending into the corresponding movable groove (8) is fixedly connected with the top of the corresponding movable block (9), and a fixing plate (10) is fixedly connected to the top of the inner wall of each, the top of the movable block (9) is fixedly connected with a spring (11), and the top end of the spring (11) is fixedly connected with the bottom of the fixed plate (10).

2. A common mode inductor according to claim 1, wherein: the surface of the movable rod (7) is slidably connected with the inside of the fixed plate (10), and the inner surface of the spring (11) is slidably connected with the surface of the movable rod (7).

3. A common mode inductor according to claim 1, wherein: connecting groove (12) have been seted up at the top of mounting panel (3) to the inner wall sliding connection of global and connecting groove (12) of apron (6).

4. A common mode inductor according to claim 1, wherein: common mode coil (5) are located the surface cover of annular magnetic core (2) and are equipped with two to two common mode coil (5) correspond the conjugation, recess (13) with common mode coil (5) looks adaptation are all seted up to the both sides of mounting groove (4) inner wall.

5. A common mode inductor according to claim 1, wherein: the front side and the rear side of the top of the cover plate (6) are both provided with a lifting groove (14).

6. A common mode inductor according to claim 1, wherein: the mounting panel (3) top and the equal fixedly connected with connecting block (15) in both sides of bottom to the inside of connecting block (15) is seted up threaded hole.