CN111986887A

CN111986887A - High magnetic conductivity filter magnetic core

Info

Publication number: CN111986887A
Application number: CN202010849421.7A
Authority: CN
Inventors: 沈宏江; 蔡忠贤; 张学舟
Original assignee: ANHUI HUALIN MAGNETIC TECHNOLOGY
Current assignee: ANHUI HUALIN MAGNETIC TECHNOLOGY
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2020-11-24
Anticipated expiration: 2040-08-21
Also published as: CN111986887B

Abstract

The invention provides a high permeability filter magnetic core, comprising: the base is provided with a heat radiation fan; the shell is detachably connected to the base, a heat dissipation cavity is arranged in the shell, a coil is wound outside the shell, an air inlet and a vent which are communicated with the heat dissipation cavity are formed in the shell, and the vent is communicated with an air suction port of a heat dissipation fan; and the filtering piece is detachably arranged between the vent and the air suction port, and the filtering piece is provided with a dust collecting groove with an opening facing the vent. Through the inlet scoop and the heat dissipation chamber intercommunication that make cooling fan, because the inside that the casing was entered into to the outside from the casing to the heat that makes the coil produce enters into the heat dissipation intracavity along with the flow at the air current, the heat dissipation intracavity has thermal air current to flow to the outside of casing through cooling fan, forms the circulation of air current, guarantees that the heat that the coil produced can be taken away by the air current, in order to reach the purpose of cooling to the coil.

Description

High magnetic conductivity filter magnetic core

Technical Field

The invention relates to the technical field of filtering, in particular to a high-permeability filtering magnetic core.

Background

The filter generally consists of a capacitor, an inductor and a resistor, wherein the inductor is an electromagnetic coil, and the coil in the prior art is generally formed by winding a wire on an insulating tube in a circle by circle, when current flows through the wire, a certain electromagnetic field is generated around the wire, but the wire generates heat when the current passes through the wire, and the electromagnetic field is influenced along with the rise of temperature, so that the filtering effect of the filter is influenced.

Therefore, it is necessary to develop a high permeability filter core for solving the above technical problems.

Disclosure of Invention

The invention aims to provide a high-permeability filter magnetic core so as to facilitate cooling of a coil.

The above object of the present invention can be achieved by the following technical solutions:

the invention provides a high permeability filter magnetic core, comprising:

the base is provided with a heat radiation fan;

the shell is detachably connected to the base, a heat dissipation cavity is formed in the shell, a coil is wound outside the shell, an air inlet and a vent which are communicated with the heat dissipation cavity are formed in the shell, and the vent is communicated with an air suction port of the heat dissipation fan;

and the filtering piece is detachably arranged between the vent and the air suction port, and the filtering piece is provided with a dust collecting groove with an opening facing the vent.

In some embodiments of the present invention, the heat dissipation fan is disposed at the lower end of the base, a boss is disposed at the upper end of the base, a flow passage is disposed on the boss, an upper port of the flow passage is communicated with the vent, and the air suction port is communicated with a lower port of the flow passage;

wherein, filter the piece and set up in the passageway overflows.

In some embodiments of the present invention, the filter member includes a dust collecting cylinder and a filter screen connected to a lower end of the dust collecting cylinder, and the dust collecting groove is defined between an inner cavity of the dust collecting cylinder and the filter screen;

a baffle ring is arranged in the overflowing channel, and the dust collecting barrel is stopped against the baffle ring.

In some embodiments of the present invention, a clamping protrusion is disposed at a lower end of the housing, a clamping groove is disposed on the boss, and the clamping protrusion is clamped in the clamping groove.

In some embodiments of the present invention, a sealing ring is disposed around the flow passage between the boss and the housing.

In some embodiments of the present invention, the housing is provided with a central hole, the coil is disposed in the central hole, and the air inlet includes a plurality of first air inlet holes disposed at intervals on a side wall of the housing and a plurality of second air inlet holes disposed at intervals on a side wall of the central hole.

In some embodiments of the present invention, at least a portion of the first air inlet openings is located between two adjacent coils.

In some embodiments of the present invention, at least a portion of the first air inlet openings is disposed opposite the corresponding portion of the coil.

In some embodiments of the invention, the housing includes a first portion and a second portion connected to the first portion, the first portion and the second portion defining the heat dissipation chamber therebetween.

In some embodiments of the present invention, the base is provided with a support leg, and the support leg is provided with a chute arranged vertically;

the shell is provided with an extending part, and the extending part is inserted into the sliding groove.

The high-permeability filter magnetic core has the characteristics and advantages that: through the inlet scoop and the heat dissipation chamber intercommunication that make cooling fan, thereby when cooling fan moves, under cooling fan's effect, the air current passes through the air intake and enters into the heat dissipation intracavity, at this moment, because the air current is the inside that enters into the casing from the outside of casing, thereby the heat that makes the coil produce enters into the heat dissipation intracavity along with the flow at the air current, the heat dissipation intracavity has thermal air current to flow to the outside of casing through cooling fan, form the circulation of air current, guarantee that the heat that the coil produced can be taken away by the air current, in order to reach the purpose of cooling to the coil.

And meanwhile, the filtering piece is arranged between the ventilation opening and the air suction opening, so that dust entering the heat dissipation cavity from the outside is collected in the dust collection groove, the dust is prevented from returning to the outside of the shell along with the circulation of the air flow, the purpose of collecting the dust is achieved through the filtering piece, the dust can be treated in a centralized manner, and the cleanness of the working environment of the high-permeability filtering magnetic core is ensured.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic perspective view of a high permeability filter core according to an embodiment of the invention;

FIG. 2 is a cross-sectional view of a high permeability filter core according to an embodiment of the present invention;

fig. 3 is a partial schematic view of the high permeability filter core of fig. 2.

The reference numbers illustrate:

1. a base; 11. a heat radiation fan; 12. a boss; 121. an overflow channel; 122. a baffle ring; 13. a support leg;

2. a housing; 21. a heat dissipation cavity; 22. a coil; 23. an air inlet; 231. a first air inlet hole; 232. a second air inlet hole; 24. a vent; 25. clamping convex; 26. a central bore; 27. a first portion; 28. a second portion; 29. an insertion portion;

4. a filter member; 41. a dust collecting groove; 42. a dust collecting cylinder; 43. a filter screen;

5. and (5) sealing rings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1 to 3, the present invention provides a high permeability filter core, comprising: the heat dissipation device comprises a base 1, wherein a heat dissipation fan 11 is arranged on the base 1; the casing 2 is detachably connected to the base 1, a heat dissipation cavity 21 is arranged in the casing 2, a coil 22 is wound outside the casing 2, an air inlet 23 and a vent 24 which are communicated with the heat dissipation cavity 21 are formed in the casing 2, and the vent 24 is communicated with an air suction port of the heat dissipation fan 11; and the filtering piece 4 is detachably arranged between the vent 24 and the air suction port, and the filtering piece 4 is provided with a dust collecting groove 41 with an opening facing the vent 24.

It can be understood that, through making the inlet scoop of the heat dissipation fan 11 communicate with the heat dissipation chamber 21, thereby when the heat dissipation fan 11 operates, under the effect of the heat dissipation fan 11, the air current enters into the heat dissipation chamber 21 through the air inlet 23, at this moment, because the air current enters into the inside of the casing 2 from the outside of the casing 2, thereby make the heat that the coil 22 produced enter into the heat dissipation chamber 21 along with the flow at the air current, the air current that has heat in the heat dissipation chamber 21 flows out to the outside of the casing 2 through the heat dissipation fan 11, form the circulation of air current, it can be taken away by the air current to guarantee the heat that the coil 22 produced, in order to reach the purpose of cooling the coil 22.

Meanwhile, the filtering piece 4 is arranged between the ventilation opening 24 and the air suction opening, so that dust entering the heat dissipation cavity 21 from the outside is collected in the dust collection groove 41, the dust is prevented from returning to the outside of the shell 2 along with the circulation of the air flow, the purpose of collecting the dust is achieved through the filtering piece 4, the dust can be treated in a centralized mode, and the cleaning of the working environment of the high-permeability filtering magnetic core is guaranteed.

Example two:

the present embodiment is different from the above-described embodiments in that;

as shown in fig. 1 to 3, in some embodiments of the present invention, the heat dissipation fan 11 is disposed at the lower end of the base 1, a boss 12 is disposed at the upper end of the base 1, a flow passage 121 is disposed on the boss 12, an upper port of the flow passage 121 is communicated with the vent 24, and the air suction port is communicated with a lower port of the flow passage 121; wherein the filter element 4 is arranged in the flow passage 121. Thereby, the communication of the suction port and the vent port 24 is facilitated.

In some embodiments of the present invention, the filter member 4 includes a dust collecting cylinder 42 and a filter screen 43 connected to a lower end of the dust collecting cylinder 42, and the dust collecting groove 41 is defined between an inner cavity of the dust collecting cylinder 42 and the filter screen 43; a stop ring 122 is arranged in the flow passage 121, and the dust collecting cylinder 42 is stopped against the stop ring 122. This makes the construction of the filter element 4 simpler and more reliable.

In some embodiments of the present invention, a clamping protrusion 25 is disposed at the lower end of the housing 2, a clamping groove is disposed on the boss 12, and the clamping protrusion 25 is clamped in the clamping groove. Thereby, the detachment between the housing 2 and the base 1 is facilitated.

In some embodiments of the invention, a sealing ring 5 is provided between the boss 12 and the housing 2, surrounding the transfer passage 121. This ensures the sealing property at the joint between the suction port and the vent 24.

Example three:

as shown in fig. 1 to 3, in some embodiments of the present invention, a central hole 26 is formed in the housing 2, the coil 22 is inserted into the central hole 26, and the air inlet 23 includes a plurality of first air inlet holes 231 spaced apart from each other on a side wall of the housing 2 and a plurality of second air inlet holes 232 spaced apart from each other on a side wall of the central hole 26. Therefore, the air flow at each position can enter the heat dissipation cavity 21, and the heat dissipation effect is improved.

In some embodiments of the present invention, at least a portion of the first air inlet openings 231 is located between two adjacent coils 22. Therefore, the heat dissipation effect is improved, it should be noted that the coil 22 is made of wires, and the first air inlet hole 231 may be located between two adjacent wires.

In some embodiments of the present invention, at least a portion of the first air inlet openings 231 is disposed opposite to the corresponding portion of the coil 22. Therefore, the heat dissipation effect is improved.

In some embodiments of the present invention, the housing 2 includes a first portion 27 and a second portion 28 connected to the first portion 27, and the first portion 27 and the second portion 28 define the heat dissipation chamber 21 therebetween. Thereby, the structure of the housing 2 is made simpler,

in some embodiments of the present invention, the base 1 is provided with a supporting leg 13, and the supporting leg 13 is provided with a sliding groove vertically arranged; the shell 2 is provided with an extending part 29, and the extending part 29 is inserted into the sliding groove. Thereby, the detachment between the base 1 and the housing 2 is facilitated, and the stability of the connection between the base 1 and the housing 2 is improved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high permeability filter core, comprising:

the base is provided with a heat radiation fan.

The casing, casing detachably connect in on the base, be equipped with the heat dissipation chamber in the casing, the outside winding of casing has the coil, set up on the casing with air intake and vent that the heat dissipation chamber is linked together, the vent with cooling blower's induction port is linked together.

2. The high-permeability filter magnetic core according to claim 1, wherein the heat dissipation fan is arranged at the lower end of the base, a boss is arranged at the upper end of the base, an overflowing channel is arranged on the boss, the upper port of the overflowing channel is communicated with the ventilation opening, and the air suction opening is communicated with the lower port of the overflowing channel;

wherein, filter the piece and set up in the passageway overflows.

3. The high permeability filter core of claim 2, wherein the filter element comprises a dust canister and a filter screen attached to a lower end of the dust canister, an interior of the dust canister defining the dust chute with the filter screen;

4. The high permeability filter core according to claim 2, wherein the lower end of the casing is provided with a locking protrusion, the boss is provided with a locking groove, and the locking protrusion is locked in the locking groove.

5. The high permeability filter core of claim 2 wherein a seal ring is disposed around the flow passage between the boss and the housing.

6. The high permeability filter core of claim 1, wherein the housing defines a central opening, the coil is disposed through the central opening, and the air inlet includes a plurality of first air inlet openings spaced apart from one another on a sidewall of the housing and a plurality of second air inlet openings spaced apart from one another on a sidewall of the central opening.

7. The high permeability filter core of claim 6 wherein at least a portion of the first air inlet openings are located between adjacent coils.

8. The high permeability filter core of claim 6 wherein at least a portion of the first air inlet openings are disposed directly opposite the coils in the corresponding position.

9. The high permeability filter core of claim 6 wherein the housing includes a first portion and a second portion connected to the first portion, the first portion and the second portion defining the heat dissipation cavity therebetween.

10. The high permeability filter core of claim 1, wherein the base has legs with vertically disposed slots;