CN216119785U

CN216119785U - Common mode inductor of plastic packaging structure

Info

Publication number: CN216119785U
Application number: CN202121984383.2U
Authority: CN
Inventors: 王龙龙
Original assignee: Suzhou Fushun Wei Electronics Co ltd
Current assignee: Suzhou Fushun Wei Electronics Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-03-22
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a common mode inductor with a plastic package structure, which comprises a protective shell, wherein a fixed rod is arranged on the inner wall of the protective shell, a connecting rod is arranged at the bottom of the fixed rod, a sliding block is arranged at the bottom of the connecting rod, a framework is arranged on the outer surface of the sliding block, a coil is arranged on one side of the framework, a fixed sleeve is arranged in the protective shell, a positioning rod is arranged in the fixed sleeve, a fixed cover is arranged at one end of the positioning rod, a heat dissipation hole is formed in one side of the inner wall of the protective shell, a filter layer is arranged on the outer surface of one side of the protective shell, an arc-shaped brush is arranged in the filter layer, a handle is arranged on the outer surface of one side of the arc-shaped brush, and a base is arranged at the bottom of the protective shell; this common mode inductance of plastic envelope structure avoids common mode inductor to receive external interference or collision, causes common mode inductor to appear the damage, needs to change again or maintain, and labour saving and time saving has improved work efficiency, simultaneously, has indirectly improved common mode inductor's life, has reduced the cost of maintenance, satisfies the user demand.

Description

Common mode inductor of plastic packaging structure

Technical Field

The utility model relates to the technical field of inductor manufacturing, in particular to a common-mode inductor with a plastic package structure.

Background

Common mode inductance, also called common mode choke coil, is often used for filtering common mode electromagnetic interference signal in the switching power supply of computer, and in the integrated circuit board design, common mode inductance also plays the effect of EM I filtering for the electromagnetic wave external radiation emission that the suppression high-speed signal line produced, common mode inductance is a two-way filter in essence: on one hand, common mode electromagnetic interference on a signal line needs to be filtered, on the other hand, electromagnetic interference which is not emitted outwards needs to be restrained, normal work of other electronic equipment under the same electromagnetic environment is prevented from being influenced, when a common mode inductor is selected, under a common condition, a frequency band which needs to be filtered is selected, the larger the common mode impedance is, the better the common mode impedance is, device information needs to be seen when the common mode inductor is selected, the selection is mainly carried out according to an impedance frequency curve, in addition, the influence of differential mode impedance on signals is considered when the common mode inductor is selected, the differential mode impedance is mainly concerned, and particularly, a high-speed port is concerned.

The prior art has the following defects or problems:

1. when the common-mode inductor with the plastic package structure is used, the surface of the common-mode inductor is not protected, and the common-mode inductor is easily interfered or collided by the outside, so that the common-mode inductor is damaged, the use is influenced, the common-mode inductor needs to be replaced or maintained again, time and labor are wasted, and the working efficiency is indirectly reduced;

2. the common mode inductor with the plastic package structure has the advantages that the heat dissipation effect is general, dust is easily attached to the inside of the common mode inductor, the common mode inductor is not easy to clean, the service life of the common mode inductor is shortened, the cost of a product is increased, and the use requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a common-mode inductor with a plastic package structure aiming at the defects in the prior art so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a common mode inductance of plastic envelope structure, includes the protective housing, the protective housing inner wall is provided with the dead lever, the dead lever bottom is provided with the connecting rod, the connecting rod bottom is provided with the slider, the slider surface is provided with the skeleton, skeleton one side is provided with the coil, the inside fixed cover that is provided with of protective housing, the inside locating lever that is provided with of fixed cover, locating lever one end is provided with fixed lid, the louvre has been seted up to protective housing inner wall one side, protective housing one side surface is provided with the filter layer, the inside arc brush that is provided with of filter layer, arc brush one side surface is provided with the handle, the protective housing bottom is provided with the base.

As a preferable technical scheme of the utility model, the outer surface of one side of the framework is provided with a sliding groove matched with the size of the sliding block.

As a preferable technical scheme of the utility model, the number of the coils is two, the two groups of coils are arranged in a way that the middle parts of the frameworks are mutually corresponding, and the bottom ends of the coils penetrate through the inner wall of the protective shell and the inner part of the base.

As a preferred technical scheme of the utility model, one end of the positioning rod is connected with the fixing cover, the other end of the positioning rod is embedded with the fixing sleeve, and the size of the positioning rod is matched with that of the fixing sleeve.

As a preferable technical solution of the present invention, the size of the fixing cover is adapted to the size of the protective shell, and the fixing cover is fixedly connected to one end of the protective shell.

As the preferable technical scheme of the utility model, the number of the filter layers is two, the two filter layers are arranged in the middle of the protective shell in a mutually corresponding mode, and the two filter layers are arranged in a corresponding mode on one side of the radiating hole.

As a preferable technical scheme of the utility model, the outer surface of one side of the filter layer is provided with a moving groove matched with the size of the handle, one end of the handle is connected with the arc-shaped brush, and the other end of the handle penetrates through the inside of the moving groove.

Compared with the prior art, the utility model provides the common-mode inductor with the plastic package structure, which has the following beneficial effects:

1. according to the common mode inductor with the plastic package structure, the fixed rod in the protective shell abuts against the framework, the sliding block connected with the connecting rod at the bottom of the fixed rod is embedded with the sliding groove of the framework to prevent the framework from shaking, and then the fixed rod is connected with one end of the protective shell through the fixed cover;

2. this common mode inductance of plastic envelope structure dispels the heat through the louvre of protective housing both sides, and inside the filter layer prevented that the dust from getting into common mode inductor, influence common mode inductor used, when the filter layer was blockked up by the dust simultaneously, through controlling the handle about, made the arc brush clean the filter layer, indirectly improved common mode inductor's life, reduced the cost of maintenance, satisfied the user demand.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of the protective case of the present invention;

FIG. 3 is a schematic structural view at A of the present invention;

fig. 4 is an external view of the fixing cover of the present invention.

In the figure: 1. a protective shell; 2. fixing the rod; 3. a connecting rod; 4. a slider; 5. a framework; 6. a coil; 7. fixing a sleeve; 8. positioning a rod; 9. a fixed cover; 10. heat dissipation holes; 11. a filter layer; 12. an arc brush; 13. a handle; 14. a base.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, in this embodiment: a common mode inductor with a plastic package structure comprises a protective shell 1, wherein a fixed rod 2 is arranged on the inner wall of the protective shell 1, the fixed rod 2 is fixed through the protective shell 1, a connecting rod 3 is arranged at the bottom of the fixed rod 2, the connecting rod 3 is fixed through the fixed rod 2, a sliding block 4 is arranged at the bottom of the connecting rod 3, the sliding block 4 is fixed through the connecting rod 3, a framework 5 is arranged on the outer surface of the sliding block 4, the framework 5 is connected through the sliding block 4, the fixed rod 2 fixes the framework 5 to prevent shaking, a coil 6 is arranged on one side of the framework 5, a fixed sleeve 7 is arranged inside the protective shell 1, a positioning rod 8 is arranged inside the fixed sleeve 7, a fixed cover 9 is arranged at one end of the positioning rod 8 and is embedded with the positioning rod 8 through the fixed sleeve 7, the fixed cover 9 is connected with one end of the protective shell 1 to fix the

framework

5, 10 is arranged on one side of the inner wall of the protective shell 1, and a filter layer 11 is arranged on the outer surface of one side of the heat dissipation hole 1, the inside arc brush 12 that is provided with of filter layer 11, the moving range of arc brush 12 is restricted through the inner chamber of filter layer 11, and arc brush 12 one side surface is provided with handle 13, and protective housing 1 bottom is provided with base 14, fixes protective housing 1 through base 14.

In this embodiment, the outer surface of one side of the framework 5 is provided with a slide groove matched with the size of the slide block 4, and the slide groove of the framework 5 is embedded into the slide block 4, so that the framework 5 is prevented from shaking when being interfered or collided by the outside; the number of the coils 6 is two, the two groups of coils 6 are arranged in the middle of the framework 5 in a mutually corresponding mode, the bottom ends of the coils 6 penetrate through the inner wall of the protective shell 1 and the inside of the base 14, and the bottom ends of the coils 6 on two sides of the framework 5 penetrate through the inner wall of the protective shell 1 and the inside of the base 14 to be connected to a circuit board for working; one end of the positioning rod 8 is connected with a fixing cover 9, the other end of the positioning rod 8 is embedded with the fixing sleeve 7, the size of the positioning rod 8 is matched with the size of the fixing sleeve 7, and the fixing cover 9 is fixed through the embedding of the positioning rod 8 and the fixing sleeve 7; the size of the fixed cover 9 is matched with that of the protective shell 1, the fixed cover 9 is fixedly connected to one end of the protective shell 1, and the fixed cover 9 is connected with one end of the protective shell 1 to fix the framework 5; the number of the filter layers 11 is two, the two filter layers 11 are arranged in the middle of the protective shell 1 in a mutually corresponding mode, the two filter layers 11 are arranged in a corresponding mode with one side of the radiating holes 10, dust is blocked through the filter layers 11, and the dust is prevented from entering the common mode inductor through the radiating holes 10; the outer surface of one side of filter layer 11 is provided with the shifting chute with handle 13's size looks adaptation, and arc brush 12 is connected to handle 13's one end, and handle 13's the other end runs through the inside in shifting chute, moves handle 13 through the left and right sides, makes arc brush 12 clean filter layer 11, prevents that the dust from blockking up.

The working principle and the using process of the utility model are as follows: before use, the fixed rod 2 in the protective shell 1 is abutted against the framework 5, the sliding block 4 connected with the connecting rod 3 at the bottom of the fixed rod 2 is embedded with the sliding groove of the framework 5 to prevent the framework 5 from shaking, and then the fixed rod is connected with one end of the protective shell 1 through the fixed cover 9, the positioning rod 8 is embedded with the fixed sleeve 7 to fix the framework 5 and prevent the framework 5 from falling off, so that the common mode inductor is prevented from being damaged due to external interference or collision, and needs to be replaced or maintained again, time and labor are saved, the working efficiency is improved, the bottom ends of the coils 6 at two sides of the framework 5 penetrate through the inner wall of the protective shell 1 to be connected with the inside of the base 14 on a circuit board to work, meanwhile, heat dissipation is carried out through the heat dissipation holes 10 at two sides of the protective shell 1, the filter layer 11 prevents dust from entering the inside of the common mode inductor to influence the use of the common mode inductor, and meanwhile, when the filter layer 11 is blocked by dust, through moving handle 13 about, make arc brush 12 clean filter layer 11, indirectly improved common mode inductor's life, reduced the cost of maintenance, satisfy the user demand.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a common mode inductance of plastic envelope structure which characterized in that: comprises a protective shell (1), a fixed rod (2) is arranged on the inner wall of the protective shell (1), a connecting rod (3) is arranged at the bottom of the fixed rod (2), a sliding block (4) is arranged at the bottom of the connecting rod (3), a framework (5) is arranged on the outer surface of the sliding block (4), a coil (6) is arranged on one side of the framework (5), a fixed sleeve (7) is arranged in the protective shell (1), a positioning rod (8) is arranged in the fixed sleeve (7), a fixing cover (9) is arranged at one end of the positioning rod (8), a heat dissipation hole (10) is formed in one side of the inner wall of the protective shell (1), a filter layer (11) is arranged on the outer surface of one side of the protective shell (1), an arc-shaped brush (12) is arranged in the filter layer (11), the outer surface of one side of the arc-shaped brush (12) is provided with a handle (13), and the bottom of the protective shell (1) is provided with a base (14).

2. The common mode inductor of plastic package structure of claim 1, wherein: and a sliding groove matched with the sliding block (4) in size is formed in the outer surface of one side of the framework (5).

3. The common mode inductor of plastic package structure of claim 1, wherein: the quantity of coil (6) has two sets ofly, two sets of coil (6) correspond the setting each other with the middle part of skeleton (5), the bottom of coil (6) runs through the inside of the inner wall of protective housing (1) and base (14).

4. The common mode inductor of plastic package structure of claim 1, wherein: one end of the positioning rod (8) is connected with the fixing cover (9), the other end of the positioning rod (8) is embedded with the fixing sleeve (7), and the size of the positioning rod (8) is matched with that of the fixing sleeve (7).

5. The common mode inductor of plastic package structure of claim 1, wherein: the size of fixed lid (9) and the size looks adaptation of protective housing (1), fixed lid (9) fixed connection is in the one end of protective housing (1).

6. The common mode inductor of plastic package structure of claim 1, wherein: the number of filter layer (11) has two, two filter layer (11) correspond the setting each other with the middle part of protective housing (1), two filter layer (11) correspond the setting with one side of louvre (10).

7. The common mode inductor of plastic package structure of claim 1, wherein: the outer surface of one side of filter layer (11) is provided with the shifting chute with the size looks adaptation of handle (13), arc brush (12) is connected to the one end of handle (13), the inside in shifting chute is run through to the other end of handle (13).