CN219534243U

CN219534243U - Self-radiating common-mode inductance coil

Info

Publication number: CN219534243U
Application number: CN202320702942.9U
Authority: CN
Inventors: 宋优宇; 王卫军
Original assignee: Huizhou Ruikai Electronics Co ltd
Current assignee: Huizhou Ruikai Electronics Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-15
Anticipated expiration: 2033-03-31

Abstract

The utility model discloses a self-radiating common-mode inductance coil which comprises a fixed magnetic ring, a coil body, a first positioning rod and a reinforcing rod, wherein the coil body is wound on the outer side of the fixed magnetic ring, the first positioning rod is arranged in the fixed magnetic ring, the outer wall of the first positioning rod is connected with one end of the reinforcing rod, and the other end of the reinforcing rod is connected with the inner surface of the fixed magnetic ring; further comprises: and the second positioning rod is arranged below the first positioning rod. This from radiating common mode inductance coil has set gradually graphite oxidation resistance coating, epoxy selenium-rich coating and heat dissipation layer, and graphite oxidation resistance coating and epoxy selenium-rich coating are the ring shape, and the heat dissipation layer is the heat conduction silicone grease material, when the coil body uses like this, not only improves oxidation resistance and corrosion resistance when the coil body uses, can also accelerate the heat dissipation progress of coil body, prevents that the coil body from appearing the too high phenomenon of temperature.

Description

Self-radiating common-mode inductance coil

Technical Field

The utility model relates to the technical field of common-mode inductance coils, in particular to a self-radiating common-mode inductance coil.

Background

Common mode inductance coils are more common in the market, and are used for filtering common mode electromagnetic interference signals in a switching power supply of a computer, and the common mode inductance coils are more in variety, so that different types of inductance coils can be selected according to different use occasions.

The utility model provides a publication number is CN201936724U, an inductance coil, includes annular magnetic ring, twines the coil on the annular magnetic ring, two end of a thread are outwards stretched out to the coil, its characterized in that: two insulating plates are respectively arranged on two sides of the coil and used for clamping the coil, and at least one penetrating screw rod and a nut penetrate through the middle of the annular magnetic ring to fixedly connect the two insulating plates. The inductance coil is light in weight, firm in fixation and very convenient to install and detach;

however, the inductor coil in the above application has some disadvantages in the use process, for example, the inductor coil is used for a long time, a heating phenomenon can occur, the heat dissipation of the inductor coil cannot be accelerated, the normal use of the inductor coil can be affected due to overhigh temperature, the inductor coil is inconvenient to limit again, once vibration occurs in use, the use stability of the inductor coil can be affected, and thus the use effect of the inductor coil is reduced, so we propose a self-radiating common-mode inductor coil, and the problems set forth in the above are solved.

Disclosure of Invention

The utility model aims to provide a self-radiating common-mode inductance coil, which solves the problems that the inductance coil in the prior market provided by the background technology can generate heat after long-time use, cannot accelerate the radiation of the inductance coil, has overhigh temperature, can influence the normal use of the inductance coil, is inconvenient to limit the inductance coil again, and can influence the use stability of the inductance coil once vibration occurs in use, thereby reducing the use effect of the inductance coil.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the self-radiating common-mode inductance coil comprises a fixed magnetic ring, a coil body, a first positioning rod and a reinforcing rod, wherein the coil body is wound on the outer side of the fixed magnetic ring, the first positioning rod is arranged in the fixed magnetic ring, the outer wall of the first positioning rod is connected with one end of the reinforcing rod, and the other end of the reinforcing rod is connected with the inner surface of the fixed magnetic ring;

further comprises:

the second positioning rod is arranged below the first positioning rod, and the bottom end of the second positioning rod is connected with the mounting seat;

and a heat sink disposed outside the coil body.

Preferably, the outer surface of the coil body is sequentially provided with a graphite oxidation-resistant coating, an epoxy selenium-rich coating and a heat dissipation layer, and the graphite oxidation-resistant coating and the epoxy selenium-rich coating are all annular, so that oxidation resistance and corrosion resistance of the coil body can be improved, the service life of the coil body is prolonged, and the heat dissipation progress of the coil body can be accelerated under the action of the heat dissipation layer.

Preferably, the heat dissipation layer is made of heat conduction silicone grease, and the heat dissipation layer is of an arc-shaped structure, so that the usability between the coil body and the fixed magnetic ring is not affected, and the heat dissipation speed of the coil body can be accelerated.

Preferably, the first positioning rod and the fixed magnetic ring are welded with the reinforcing rod, and the reinforcing rod is not contacted with the coil body, so that the reinforcing rod is firmer in use, the fixed magnetic ring can be supported, and the overall stability of the fixed magnetic ring is better in use.

Preferably, the outer wall of the bottom of the first positioning rod is provided with a butt joint block, the butt joint block is connected with the second positioning rod through a fixing groove, the fixing groove is formed in the inner wall of the second positioning rod, and the disassembly and assembly operations between the first positioning rod and the second positioning rod are facilitated.

Preferably, the structure as an organic whole between butt joint piece and the first locating lever, and the size of butt joint piece and the size of fixed slot coincide to the butt joint piece is provided with two, can make this common mode inductance coil be convenient for install, and then keeps stability when making this common mode inductance coil use, effectively reduces the phenomenon that shakes.

Preferably, the limiting grooves are formed in the inner walls of the first positioning rod, the second positioning rod and the butt joint block, the locking rods are connected with the inner threads of the limiting grooves, locking and fixing of the butt joint block are facilitated, and firmness in installation is further guaranteed.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The outer surface of the coil body is sequentially provided with the graphite oxidation-resistant coating, the epoxy selenium-rich coating and the heat dissipation layer, the graphite oxidation-resistant coating and the epoxy selenium-rich coating are of circular ring shapes, the heat dissipation layer is of an arc structure, and the heat dissipation layer is made of heat-conducting silicone grease, so that when the coil body is used, the oxidation resistance and corrosion resistance of the coil body are improved, the heat dissipation progress of the coil body can be accelerated, and meanwhile, the heat dissipation speed of the coil body can be further improved due to the fact that the heat dissipation fins are sleeved on the outer side of the coil body, and the phenomenon that the temperature of the coil body is too high is effectively prevented;

(2) This from radiating common mode inductance coil, the inboard of fixed magnetic ring is provided with first locating lever, and the one end of first locating lever and stiffening rod is connected, and the one end that first locating lever was kept away from to the stiffening rod is fixed mutually with fixed magnetic ring, and contactless between stiffening rod and the coil body, be provided with the second locating lever in the bottom of first locating lever simultaneously, the fixed slot has been seted up to the inner wall of second locating lever, the butt joint piece mutual block of fixed slot and first locating lever bottom is convenient for carry out spacingly to this common mode inductance coil like this, and can make this common mode inductance coil more stable when using moreover, effectively prevent to reduce the phenomenon that shakes appear.

Drawings

FIG. 1 is a schematic diagram of a top view of a connection between a stationary magnetic ring and a coil body according to the present utility model;

FIG. 2 is a schematic diagram of the overall front view structure of the present utility model;

FIG. 3 is a schematic view of a first positioning rod and docking block connection top-down configuration of the present utility model;

FIG. 4 is a schematic side sectional view of a coil body according to the present utility model;

fig. 5 is a schematic diagram of a connection top view structure of the second positioning rod and the mounting base of the present utility model.

In the figure: 1. fixing a magnetic ring; 2. a coil body; 3. a first positioning rod; 4. a reinforcing rod; 5. a second positioning rod; 6. a mounting base; 7. a butt joint block; 8. a fixing groove; 9. a limit groove; 10. a locking lever; 11. a heat sink; 12. a graphite oxidation-resistant coating; 13. an epoxy selenium-rich coating; 14. and a heat dissipation layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a self-radiating common mode inductance coil, includes fixed magnetic ring 1, coil body 2, first locating lever 3 and stiffening rod 4, and the outside of fixed magnetic ring 1 twines has coil body 2, and the inside of fixed magnetic ring 1 is provided with first locating lever 3, and the outer wall of first locating lever 3 is connected with one end of stiffening rod 4, and the other end of stiffening rod 4 is connected with the internal surface of fixed magnetic ring 1 simultaneously;

further comprises:

the second positioning rod 5 is arranged below the first positioning rod 3, the bottom end of the second positioning rod 5 is connected with the mounting seat 6, the first positioning rod 3 and the fixed magnetic ring 1 are in welded connection with the reinforcing rod 4, the reinforcing rod 4 is not contacted with the coil body 2, the outer wall of the bottom of the first positioning rod 3 is provided with the butt joint block 7, the butt joint block 7 is connected with the second positioning rod 5 through the fixing groove 8, the fixing groove 8 is formed in the inner wall of the second positioning rod 5, the butt joint block 7 and the first positioning rod 3 are of an integrated structure, the size of the butt joint block 7 is identical with that of the fixing groove 8, the butt joint block 7 is provided with two, the first positioning rod 3, the second positioning rod 5 and the inner wall of the butt joint block 7 are provided with the limit groove 9, and the internal thread of the limit groove 9 is connected with the locking rod 10;

the coil body 2 is wound on the outer surface of the fixed magnetic ring 1, normal use of the common-mode inductance coil is ensured, when the common-mode inductance coil is required to be fixed, the butt joint block 7 at the bottom of the first positioning rod 3 can be clamped into the fixed groove 8 on the inner wall of the second positioning rod 5, so that the first positioning rod 3 and the second positioning rod 5 are limited, the limiting grooves 9 are formed in the inner walls of the first positioning rod 3, the second positioning rod 5 and the butt joint block 7, so that after the butt joint block 7 and the fixed groove 8 are clamped, the locking rod 10 can be rotated into the limiting grooves 9, the first positioning rod 3 and the second positioning rod 5 are limited again, the firmness of the coil body 2 in use is ensured, the outer wall of the first positioning rod 3 is connected with one end of the reinforcing rod 4, the other end of the reinforcing rod 4 is connected with the fixed magnetic ring 1, the stability of the coil body 2 in use can be further ensured, and the mounting seat 6 is fixed afterwards, and the coil body 2 is very convenient;

the heat dissipation fin 11, it sets up in the outside of coil body 2, the surface of coil body 2 has set gradually graphite oxidation resistant coating 12, epoxy selenium-rich coating 13 and heat dissipation layer 14, and graphite oxidation resistant coating 12 and epoxy selenium-rich coating 13 all are annular, heat dissipation layer 14 is the heat conduction silicone grease material, and heat dissipation layer 14 is arc structure, the surface of coil body 2 has set gradually graphite oxidation resistant coating 12, epoxy selenium-rich coating 13 and heat dissipation layer 14, so oxidation resistance when can improve coil body 2 through graphite oxidation resistant coating 12, and epoxy selenium-rich coating 13 can improve the corrosion resistance when coil body 2 uses, thereby the life of coil body 2 is prolonged, wherein heat dissipation layer 14 is the heat conduction silicone grease material, and heat dissipation layer 14 is arc structure, i.e. coil body 2 does not laminate fixed magnetic ring 1's one side and scribble heat dissipation layer 14, so neither influence coil body 2 and fixed magnetic ring 1 between the normal use, also can play the radiating effect to coil body 2, and be equipped with fin 11 in the outside cover of whole coil body 2, thereby can further accelerate the common inductance coil when using, the high-efficient heat dissipation effect prevents that the coil from appearing in the common inductance coil during the use, the high-efficient heat dissipation effect has not appeared in the prior art specification.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a self-radiating common mode inductance coil, includes fixed magnetic ring (1), coil body (2), first locating lever (3) and stiffening rod (4), the outside of fixed magnetic ring (1) is twined has coil body (2), and the inside of fixed magnetic ring (1) is provided with first locating lever (3), and the outer wall of first locating lever (3) is connected with one end of stiffening rod (4), and the other end of stiffening rod (4) is connected with the internal surface of fixed magnetic ring (1) simultaneously;

characterized by further comprising:

the second positioning rod (5) is arranged below the first positioning rod (3), and the bottom end of the second positioning rod (5) is connected with the mounting seat (6);

and a heat sink (11) provided outside the coil body (2).

2. A self-radiating common mode inductor as set forth in claim 1, wherein: the outer surface of the coil body (2) is sequentially provided with a graphite oxidation-resistant coating (12), an epoxy selenium-rich coating (13) and a heat dissipation layer (14), and the graphite oxidation-resistant coating (12) and the epoxy selenium-rich coating (13) are annular.

3. A self-radiating common mode inductor as claimed in claim 2, wherein: the heat dissipation layer (14) is made of heat-conducting silicone grease, and the heat dissipation layer (14) is of an arc-shaped structure.

4. A self-radiating common mode inductor as set forth in claim 1, wherein: the first positioning rod (3) and the fixed magnetic ring (1) are welded with the reinforcing rod (4), and the reinforcing rod (4) is not contacted with the coil body (2).

5. A self-radiating common mode inductor as set forth in claim 1, wherein: the bottom outer wall of first locating lever (3) is provided with butt joint piece (7), and butt joint piece (7) are connected through fixed slot (8) and second locating lever (5), and the inner wall of second locating lever (5) is seted up in fixed slot (8).

6. A self-radiating common mode inductor as set forth in claim 5, wherein: the butt joint block (7) and the first positioning rod (3) are of an integrated structure, the size of the butt joint block (7) is matched with the size of the fixing groove (8), and the butt joint block (7) is provided with two parts.

7. A self-radiating common mode inductor as set forth in claim 5, wherein: limiting grooves (9) are formed in the inner walls of the first positioning rod (3), the second positioning rod (5) and the butt joint block (7), and locking rods (10) are connected with the inner threads of the limiting grooves (9).