CN220984283U

CN220984283U - Box body and inductor

Info

Publication number: CN220984283U
Application number: CN202322655882.2U
Authority: CN
Inventors: 王策; 钟华; 黄旭文; 黎梓明
Original assignee: Foshan Zhongyan Magnetoelectric Technology Co ltd
Current assignee: Foshan Zhongyan Magnetoelectric Technology Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-05-17
Anticipated expiration: 2033-09-28

Abstract

The utility model provides a box body, which comprises a bottom plate, wherein the upper side of the peripheral edge of the bottom plate is vertically extended to form the outer wall of the box, the middle part of the bottom plate is provided with two side bottom openings, and the upper sides of the two bottom openings are vertically extended to form positioning cylinders; and connecting pieces are arranged in the bottom plate and/or the outer wall of the box in an extending way. Through the arrangement of the box body, the connecting piece for extending application can effectively lead the inductor structure applying the box body to be directly positioned and assembled to a specific installation environment, so that the inductor has wider installation suitability.

Description

Box body and inductor

Technical Field

The utility model relates to the technical field of inductor structures, in particular to a box body and an inductor.

Background

Electromagnetic interference is an electronic noise that interferes with the cable signal and reduces signal integrity, and can be classified into common mode interference and differential mode interference according to waveforms. Common mode interference means that the amplitudes of interference currents on two directions are equal and the directions are the same, while differential mode interference means that the amplitudes of interference currents on two directions are equal and the directions are opposite, and the interference is overlapped and mixed with transmission signals of a transmission line, and cannot be generally distinguished. In general, the differential mode interference has small amplitude, low frequency and small interference; the common mode interference has large amplitude and high frequency, and can generate radiation through a wire, so that the interference is large. In view of the above, in most anti-electromagnetic interference modules, only the common-mode filter inductance is often used and the differential-mode filter inductance that has less interference with the electronic device is often omitted. However, this method is difficult to achieve a good effect, and the filter circuit cost is high when two kinds of inductors are used at the same time, so that the common-differential mode integrated inductor is widely popularized.

Inductors of various structures are used in the prior art.

In the prior art, the inductor structure needs to be adaptively and fixedly installed, and then a connecting structure needs to be additionally arranged to connect the inductor with the installation component.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provide a box body and an inductor.

The box body comprises a bottom plate, the upper side of the peripheral edge position of the bottom plate is vertically extended to form the outer wall of the box, the middle position of the bottom plate is provided with two side bottom openings, and the upper sides of the two bottom openings are vertically extended to form positioning cylinders; and connecting pieces are arranged in the bottom plate and/or the outer wall of the box in an extending way.

Further, the connecting pieces are arranged at the two ends of the bottom plate and/or the outer wall of the box in an extending way; the connecting pieces on two sides are matched to form an installation supporting plane, or the connecting pieces on two sides are arranged in a staggered mode.

Further, a cover plate is detachably arranged on the upper side of the outer wall of the box, a plate opening is arranged on the cover plate corresponding to the positioning cylinder, and the bottom opening is communicated with the plate opening up and down through the positioning cylinder; and a box inner cavity is formed among the cover plate, the inner side of the box outer wall, the outer side of the positioning cylinder and the bottom plate.

Further, the bottom plate is wholly rectangular, the bottom plate includes fillet end and right angle end, the bottom plate three-end sets up the fillet and one end sets up the right angle setting.

Further, the connecting piece, the bottom plate and the outer wall of the box are integrally formed in an injection molding mode.

Further, the connecting piece comprises a connecting plate which is arranged to extend outwards from the outer peripheral side of the outer wall of the box, and a mounting hole is arranged on the connecting plate; the connecting plate extends perpendicularly to the outer periphery of the box outer wall, and a reinforcing rib plate is arranged between the connecting plate and the box outer wall.

Further, the extending direction of the connecting plate is flush with the extending direction of a side wall end face of the outer wall of the box, and an anti-slip wall strip is arranged on the side wall end face flush with the connecting plate.

The inductor comprises the box body, wherein an annular magnetic core is arranged in the box body, and a magnetic conduction part is arranged on the inner annular side of the annular magnetic core.

Further, the magnetic conduction part is a soft magnetic conduction piece made of soft magnetic conduction materials.

Further, the magnetic conduction part is a hard magnetic conduction block made of hard magnetic conduction materials.

Further, the magnetic conduction part comprises a soft magnetic conduction piece and a hard magnetic conduction block; wherein:

Further, the hard magnetic conduction block is arranged in the middle of the box body and is provided with two end guide ends which are arranged towards the side face of the inner ring side of the annular magnetic core; at least one end of the soft magnetic conduction piece is arranged between the guide end and the side surface of the inner ring side of the annular magnetic core;

Or the soft magnetic conduction piece is arranged at the middle part of the box body, and the hard magnetic conduction block is arranged between the soft magnetic conduction piece and the side surface of the inner ring side of the annular magnetic core.

The utility model has the beneficial effects that:

1. Through the arrangement of the box body, the connecting piece for extending application can effectively lead the inductor structure applying the box body to be directly positioned and assembled to a specific installation environment, so that the inductor has wider installation suitability.

2. Through inductor structure setting, the box body of its application has to assemble outward stably, to the characteristics that the installation of internal structure magnetic conduction portion and annular magnetic core is stable, has guaranteed that the inductor can deal with complicated installation environment setting, has avoided inductor structure to lead to because of external environment influences the structure not hard up to the stable performance of inductor structure has been guaranteed.

Drawings

FIG. 1 is a schematic view showing the arrangement of a box structure according to the present utility model;

fig. 2 is a schematic diagram showing the structure of an inductor according to embodiment 1 of the present utility model;

Fig. 3 is a schematic diagram showing the structure of an inductor according to embodiment 2 of the present utility model;

FIG. 4 is a schematic diagram of an inductor structure according to embodiment 3 of the present utility model;

fig. 5 is a schematic diagram of another inductor structure according to embodiment 3 of the present utility model.

Reference numerals illustrate:

The box body 1, the bottom plate 11, the round corner end 111, the right angle end 112, the box outer wall 12, the anti-skid wall strip 121, the positioning cylinder 13, the anti-skid strip 131, the connecting piece 14, the connecting plate 141, the mounting hole 142, the reinforcing rib plate 143, the cover plate 15, the plate opening 151,

A ring-shaped magnetic core 2,

The magnetic conduction part 3, the hard magnetic conduction block 31, the chamfer angle 311 and the soft magnetic conduction piece 32.

Detailed Description

In order to make the technical scheme, the purpose and the advantages of the utility model more clear, the utility model is further explained below with reference to the drawings and the embodiments.

As shown in fig. 1, the box 1 of the present utility model includes a bottom plate 11, the bottom plate 11 is rectangular, the bottom plate 11 includes a rounded end 111 and a right-angle end 112, the three ends of the bottom plate 11 are provided with the rounded end 111, and one end is provided with the right-angle end 112.

The box outer wall 12 is vertically extended on the upper side of the peripheral edge position of the bottom plate 11, and the connecting piece 14 is extended in the bottom plate 11 and/or the box outer wall 12. Preferably, the connector 14 includes a connection plate 141 extending outward from the outer peripheral side of the case outer wall 12, the connection plate 141 being provided with a mounting hole 142; the connection plate 141 extends vertically on the outer peripheral side of the box outer wall 12, and a reinforcing rib plate 143 is provided between the connection plate 141 and the box outer wall 12.

The two connecting pieces 14 are arranged, the two connecting pieces 14 are arranged on the box outer wall 12, the two connecting pieces 14 are respectively arranged on the box outer wall 12 at the symmetrical two sides of the bottom plate 11, and the two connecting plates 141 are arranged in parallel. The two parallel connection plates 141 may be disposed at the same level to form a mounting support plane. Or the two parallel connecting plates 141 are arranged on different horizontal planes, or the two parallel connecting plates 141 are arranged on the adjacent box outer wall 12, or the two connecting plates 141 are arranged in a non-parallel way, so that the positions of the connecting pieces 14 on the two sides are staggered, and the arrangement requirements of different installation positions are met.

Preferably, the connecting plate 141 on one side is disposed corresponding to the right-angle end 112 of the box body 1, the extending direction of the connecting plate 141 is flush with the extending direction of the side wall end surface of the box outer wall 12 on one side of the right-angle end 112, and a plurality of anti-slip wall strips 121 extending in the vertical direction are disposed on the side wall end surface flush with the connecting plate 141.

A cover plate 15 is detachably arranged on the upper side of the outer wall 12 of the box, and two side plate openings 151 are formed in the middle of the cover plate 15; the middle part of the bottom plate 11 is provided with two side bottom openings, and the upper sides of the two bottom openings are vertically provided with positioning cylinders 13 in an extending mode; the two plate openings 151 are arranged in a position matching way with the two positioning cylinders 13, and the bottom openings are communicated with the plate openings 151 up and down through the positioning cylinders 13; the cover plate 15, the inner side of the outer wall 12 of the box, the outer side of the positioning cylinder 13 and the bottom plate 11 form a box inner cavity for placing the annular magnetic core 2 structure and the magnetic conduction part 3 of the inductor.

As a preferred embodiment, the connecting piece 14 is integrally injection-molded with the base plate 11 and the box outer wall 12.

Example 1:

As shown in fig. 2, the present embodiment describes an inductor structure application based on the above-described structural arrangement of the case 1.

The inductor comprises a box body 1, wherein an annular magnetic core 2 is arranged in a box inner cavity of the box body 1, and a magnetic conduction part 3 is arranged at the inner ring side position of the annular magnetic core 2.

In this embodiment, the magnetic conductive portion 3 is provided as a hard magnetic conductive block 31 made of a hard magnetic conductive material, and the hard magnetic conductive material is an amorphous or nanocrystalline alloy. The hard magnetic conductive block 31 is vertically attached between the positioning cylinders 13 at two sides in the box body 1 in a columnar shape, the positioning cylinders 13 at two sides are rectangular, and anti-slip strips 131 are arranged on the side surfaces of the cylinders 13 at two sides, which are opposite to each other; the hard magnetic block 31 is integrally rectangular and columnar, and the hard magnetic block 31 and the anti-slip strip 131 are in interference fit to form positioning attachment.

The guiding end positions of the two ends of the hard magnetic conductive block 31 are provided with chamfer inclined planes 311, so that the end angle positions of the hard magnetic conductive block 31 are prevented from being damaged by collision in the installation process.

In the arrangement of the inductor, the toroidal core 2 is not effective for direct positioning in the box cavity after assembly; conventionally, insulating adhesive is injected between the outer side of the annular magnetic core 2 and the inner side of the outer wall 12 of the case, so that the annular magnetic core 2 is adhered and fixed on the case 1. Based on the box body 1, the right-angle end 112 is arranged, so that the end angle of one side of the box body 1 forms an injection position for injecting insulating adhesive, and the requirement of the installation and fixation of the internal structure of the inductor is met.

Example 2:

As shown in fig. 3, this embodiment provides an inductor structure, which differs from embodiment 1 described above in that: the magnetic conduction part 3 is a soft magnetic conduction piece 32 made of soft magnetic conduction materials, one of the soft magnetic conduction pieces 32 is an adhesive magnetic conduction piece formed by mixing adhesive materials and magnetic powder attached to the adhesive materials, and the other is a soft magnetic conduction piece which is formed by combining soft adhesive materials and magnetic powder mixed on the soft adhesive materials and has no adhesive property.

When the adhesive magnetic conduction piece is selected, at least one side of the adhesive magnetic conduction piece is in adhesive contact with the inner ring side surface of the annular magnetic core 2 through the adhesive characteristic in the adhesive material.

When the soft magnetic conductive member is selected, the soft magnetic conductive member 32 is positioned and mounted in the inner cavity of the box, so that one side of the soft magnetic conductive member contacts with the side surface of the inner ring side of the annular magnetic core 2.

Example 3:

As shown in fig. 4 and 5, the present embodiment provides an inductor structure in which the magnetic conductive portion 3 is provided by using a hard magnetic conductive block 31 and a soft magnetic conductive member 32 applied in accordance with the above embodiment.

Specifically, the hard magnetic conductive block 31 may be disposed at a middle position of the case 1, and the hard magnetic conductive block 31 has two end guiding ends disposed toward the inner side surface of the annular magnetic core 2; at least one end of the soft magnetic conductive member 32 is arranged between the guide end and the inner annular side surface of the annular magnetic core 2.

Or, the soft magnetic conductive member 32 is disposed at the middle position of the box body 1, and the hard magnetic conductive block 31 is disposed between the soft magnetic conductive member 32 and the inner side surface of the annular magnetic core 2.

The foregoing is merely a preferred embodiment of the present utility model, and modifications of the embodiments described above can be made by those skilled in the art without departing from the implementation principles of the present utility model, and the corresponding modifications should also be considered as the protection scope of the present utility model.

Claims

1. The box body is characterized by comprising a bottom plate, wherein the upper side of the peripheral edge position of the bottom plate is vertically extended to form the outer wall of the box, the middle position of the bottom plate is provided with two side bottom openings, and the upper sides of the two bottom openings are vertically extended to form positioning cylinders; and connecting pieces are arranged in the bottom plate and/or the outer wall of the box in an extending way.

2. The box body according to claim 1, wherein the connecting pieces are arranged at two ends of the bottom plate and/or the outer wall of the box in an extending manner; the connecting pieces on two sides are matched to form an installation supporting plane, or the connecting pieces on two sides are arranged in a staggered mode.

3. The box body according to claim 1, wherein a cover plate is detachably arranged on the upper side of the outer wall of the box, a plate opening is arranged on the cover plate corresponding to the positioning cylinder, and the bottom opening is communicated with the plate opening up and down through the positioning cylinder; and a box inner cavity is formed among the cover plate, the inner side of the box outer wall, the outer side of the positioning cylinder and the bottom plate.

4. The case of claim 1, wherein the base plate is generally rectangular in shape, the base plate includes rounded ends and right angle ends, the base plate has rounded ends and one end is provided with a right angle.

5. The case of claim 1, wherein the connector is integrally injection molded with the base plate and the case outer wall.

6. The case according to any one of claims 1 to 5, wherein the connection member includes a connection plate provided to extend outward from an outer peripheral side of the case outer wall, the connection plate being provided with a mounting hole; the connecting plate extends perpendicularly to the outer periphery of the box outer wall, and a reinforcing rib plate is arranged between the connecting plate and the box outer wall.

7. The case of claim 6, wherein the extension direction of the connection plate is flush with the extension direction of a side wall end surface of the case outer wall, and an anti-slip wall strip is provided on the side wall end surface flush with the connection plate.

8. An inductor, comprising a case according to any one of claims 1 to 7, wherein a toroidal core is provided in the case, and a magnetically conductive portion is provided on an inner side of the toroidal core.

9. The inductor of claim 8 wherein said magnetically permeable portion is a hard magnetically permeable block formed of a hard magnetically permeable material or said magnetically permeable portion is a soft magnetically permeable member formed of a soft magnetically permeable material.

10. The inductor of claim 8 wherein said magnetically permeable portion comprises a soft magnetically permeable member and a hard magnetically permeable block; wherein:

the hard magnetic conduction block is arranged in the middle of the box body and is provided with two end guide ends which are arranged towards the side face of the inner ring side of the annular magnetic core; at least one end of the soft magnetic conduction piece is arranged between the guide end and the side surface of the inner ring side of the annular magnetic core;