CN213519440U

CN213519440U - Amorphous inductance magnetic core

Info

Publication number: CN213519440U
Application number: CN202023235078.1U
Authority: CN
Inventors: 刘立新
Original assignee: Shenzhen Xinyi Magnetic Material Co ltd
Current assignee: Shenzhen Xinyi Magnetic Material Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-06-22
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses an amorphous inductance magnetic core, including annular magnetic core, the shell has been cup jointed to annular magnetic core's outer wall, the outer wall winding of shell has the coil, the equal fixedly connected with rubber pad of both sides inner wall of shell, two one side outer wall fixedly connected with heat absorption piece that shell inner wall was kept away from to rubber pad one, the equal fixedly connected with heat abstractor of the upper and lower both sides outer wall of shell, heat abstractor includes the conducting strip, the outer wall of conducting strip and the outer wall fixed connection of heat absorption piece. Through with the winding of coil at the outer wall of shell, through the setting of constant head tank, for the winding planning route of coil, through the setting of rubber pad two, increase the compressive capacity of shell, the friction loss of copper line can be avoided again in the setting of rubber material, and this device passes through the joint setting of constant head tank, shell, rubber pad class two devices, avoids the coil to skid at the outer wall of shell, influences winding work efficiency, has made things convenient for the winding of coil, makes the winding efficiency of coil higher.

Description

Amorphous inductance magnetic core

Technical Field

The utility model belongs to the technical field of the magnetic core, concretely relates to amorphous inductance magnetic core.

Background

The amorphous inductance magnetic core has high magnetic induction intensity Bs, has the advantages of low loss, easiness in installation, easiness in winding and the like, is widely applied, and is suitable for occasions such as high-frequency transformers, photovoltaic inverter filter inductors, medium-frequency transformers, high-power output filters, variable-frequency air conditioner PFC inductors and the like. In order to effectively reduce electromagnetic interference generated by a leakage magnetic field in a closed magnetic circuit of a high-frequency inductor and eddy current loss generated by a winding due to the leakage magnetic field, the existing magnetic powder core winding process generally adopts uniform and dense winding of a round wire, and in order to meet the requirement of the inductor, the number of winding turns is between dozens of turns and hundreds of turns, and the round wire is wound in a dense lamination manner. There are the following problems:

1. the close-wound coil enables the total contact area of the conductor and the outside air to be reduced, and surrounds the magnetic core, so that the inductance heat dissipation effect is influenced.

2. Annular magnetic core must be through artifical wire winding when the wire winding, and it is very troublesome to produce like this, when the thermotechnical wire winding, inconvenient fixes a position the coil, makes the winding efficiency of coil reduce, has increased production time, has increased the cost of labor simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an amorphous inductance magnetic core to propose current amorphous inductance magnetic core in solving above-mentioned background art in the use, because the coil of close winding makes the total area of contact of conductor and outside air diminish, inconvenient fixes a position the coil, thereby influences the inductance radiating effect, makes the problem that the winding efficiency of coil reduces.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an amorphous inductance magnetic core, includes annular magnetic core, the shell has been cup jointed to annular magnetic core's outer wall, the outer wall winding of shell has the coil, the equal fixedly connected with rubber pad one of the both sides inner wall of shell, two one side outer wall fixedly connected with heat absorption piece that shell inner wall was kept away from to rubber pad one, the equal fixedly connected with heat abstractor of the upper and lower both sides outer wall of shell.

Preferably, the heat dissipation device comprises a heat conduction fin, the outer wall of the heat conduction fin is fixedly connected with the outer wall of the heat absorption fin, and the outer wall of one side, far away from the heat absorption fin, of the heat conduction fin is fixedly connected with a heat dissipation fin.

Through adopting above-mentioned technical scheme, through heat abstractor's setting, dredge for the heat that this magnetic core during operation produced, absorb the heat of shell inside through the heat sink, conduct the heat through the conducting strip, give off the heat through the fin at last, through the setting of first circulation hole and second circulation hole, both can give off the heat that the conducting strip transmission comes, simultaneously, can give off the heat that the coil during operation produced again.

Preferably, the outer wall of the annular magnetic core is fixedly connected with pins, and the inner walls of the pins are provided with threading holes.

Through adopting above-mentioned technical scheme, through passing the coil through wires hole realization on the pin to being connected of annular magnetic core and external device.

Preferably, the outer walls of the inner side and the outer side of the shell are fixedly connected with a second rubber pad.

Through adopting above-mentioned technical scheme, through the pressure capacity that sets up the increase shell of rubber pad two, the friction loss of copper line can be avoided again in the setting of rubber material, insulating effect in addition.

Preferably, the outer walls of the two sides of the second rubber pad are provided with positioning grooves, and the positioning grooves are distributed in a circumferential array by taking the center of the shell as a circle center.

Through adopting above-mentioned technical scheme, the circumference array through the constant head tank distributes for the winding planning route of coil, avoids the coil to skid at the outer wall of shell, influences winding work efficiency.

Preferably, the upper outer wall and the lower outer wall of each radiating fin are provided with first flow through holes, and the two outer walls of each radiating fin are provided with second flow through holes.

Through adopting above-mentioned technical scheme, through the setting of first circulation hole and second circulation hole, both can give off the heat that the conducting strip transmission comes, simultaneously, can give off the heat that the coil during operation produced again.

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

1. set up the shell through the outer wall at annular magnetic core, set up the constant head tank at the outer wall of shell, with the coil winding at the outer wall of shell, setting through the constant head tank, plan the route for the winding of coil, setting through rubber pad two, increase the compressive capacity of shell, the friction loss of copper line can be avoided again in the setting of rubber material, this device passes through the constant head tank, the shell, the joint setting of device such as rubber pad two, avoid the coil to skid at the outer wall of shell, influence winding work efficiency, made things convenient for the winding of coil, make the winding efficiency of coil higher, workman's work efficiency is provided.

2. Through heat abstractor's setting, dredge for the heat that this magnetic core during operation produced, absorb the heat of shell inside through the heat sink, conduct the heat through the conducting strip, give off the heat through the fin at last, through the setting of first circulation hole and second circulation hole, both can give off the heat that the conducting strip transmission came, and simultaneously, can give off the heat that the coil during operation produced again, this device passes through heat abstractor's setting, the radiating effect has been strengthened, make the product be difficult to take place the condition of interturn short circuit, make work more stable, and work efficiency is higher, and has practicability.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic structural diagram of the housing of the present invention;

fig. 3 is an enlarged schematic structural view of a point a in fig. 2 according to the present invention;

fig. 4 is a schematic structural view of the heat dissipation device of the present invention.

In the figure: 1. an annular magnetic core; 2. a pin; 3. threading holes; 4. a housing; 5. positioning a groove; 6. a coil; 7. a first rubber pad; 8. a heat absorbing sheet; 9. a heat sink; 91. a heat conductive sheet; 92. a heat sink; 93. a first flow through hole; 94. a second flow through hole; 10. and a second rubber pad.

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. 1-4, the present invention provides a technical solution: the utility model provides an amorphous inductance magnetic core, includes annular magnetic core 1, and shell 4 has been cup jointed to annular magnetic core 1's outer wall, and the outer wall winding of shell 4 has coil 6, and the equal fixedly connected with rubber pad 7 of shell 4's both sides inner wall, one side outer wall fixedly connected with heat absorption piece 8 of shell 4 inner wall is kept away from to two rubber pad 7, the equal fixedly connected with heat abstractor 9 of shell 4's upper and lower both sides outer wall.

In this embodiment, set up shell 4 through the outer wall at annular magnetic core 1, set up constant head tank 5 at the outer wall of shell 4, with the winding of coil 6 at the outer wall of shell 4, through the setting of constant head tank 5, for the winding planning route of coil 6, avoid coil 6 to skid at the outer wall of shell 4, influence winding work efficiency, through the setting of rubber pad two 10, increase shell 4's pressurized ability, the friction loss of copper line can be avoided again in the setting of rubber material.

Specifically, the heat dissipation device 9 includes a heat conduction sheet 91, an outer wall of the heat conduction sheet 91 is fixedly connected to an outer wall of the heat sink 8, and a heat dissipation sheet 92 is fixedly connected to an outer wall of one side of the heat conduction sheet 91 away from the heat sink 8.

In this embodiment, through the setting of heat abstractor 9, dredge for the heat that this magnetic core during operation produced, absorb the inside heat of shell 4 through heat-absorbing fin 8, conduct the heat through conducting fin 91, give off the heat through fin 92 at last, through the setting of first circulation hole 93 and second circulation hole 94, both can give off the heat that conducting fin 91 transmitted, simultaneously, can give off the heat that coil 6 during operation produced again.

Specifically, the outer wall fixedly connected with pin 2 of annular magnetic core 1, through wires hole 3 has been seted up to the inner wall of pin 2.

In the present embodiment, the connection of the toroidal core 1 to an external device is achieved by passing the coil 6 through the threading hole 3 of the pin 2.

Specifically, the outer walls of the inner side and the outer side of the shell 4 are fixedly connected with a second rubber pad 10.

In this embodiment, the second rubber pad 10 is arranged to increase the pressure bearing capacity of the housing 4, and the rubber material can avoid the friction loss of the copper wire and has an insulating effect.

Specifically, the outer walls of the two sides of the second rubber pad 10 are both provided with positioning grooves 5, and the positioning grooves 5 are distributed in a circumferential array by taking the center of the shell 4 as a circle center.

In this embodiment, the circumferential array of the positioning grooves 5 is distributed as the winding planning path of the coil 6, so that the coil 6 is prevented from slipping on the outer wall of the housing 4 and affecting the winding efficiency.

Specifically, the upper and lower outer walls of the heat sink 92 are both provided with first flow holes 93, and the two outer walls of the heat sink 92 are provided with second flow holes 94.

In the present embodiment, by providing the first flow through hole 93 and the second flow through hole 94, heat transferred from the heat conductive sheet 91 can be dissipated, and at the same time, heat generated when the coil 6 operates can be dissipated.

The utility model discloses a theory of operation and use flow: when the magnetic core winding machine is used, the outer shell 4 is arranged on the outer wall of the annular magnetic core 1, the positioning groove 5 is formed in the outer wall of the outer shell 4, the coil 6 is wound on the outer wall of the outer shell 4, a path is planned for winding the coil 6 through the positioning groove 5, the phenomenon that the coil 6 slips on the outer wall of the outer shell 4 to affect the winding work efficiency is avoided, the pressure bearing capacity of the outer shell 4 is improved through the arrangement of the rubber pad II 10, and the friction loss of copper wires can be avoided through the arrangement of rubber materials; through heat abstractor 9's setting, dredge for the heat that this magnetic core during operation produced, absorb the inside heat of shell 4 through heat-absorbing fin 8, conduct the heat through conducting fin 91, give off the heat through fin 92 at last, through the setting of first circulation hole 93 and second circulation hole 94, both can give off the heat that conducting fin 91 transmission came, simultaneously, can give off the heat that coil 6 during operation produced again.

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. An amorphous inductance core, includes annular magnetic core (1), its characterized in that: the outer wall of annular magnetic core (1) has cup jointed shell (4), the outer wall winding of shell (4) has coil (6), the equal fixedly connected with rubber pad (7) of both sides inner wall of shell (4), two one side outer wall fixedly connected with heat absorbing sheet (8) of shell (4) inner wall is kept away from in rubber pad (7), the equal fixedly connected with heat abstractor (9) of upper and lower both sides outer wall of shell (4).

2. An amorphous inductor core as defined in claim 1, wherein: the heat dissipation device (9) comprises a heat conducting fin (91), the outer wall of the heat conducting fin (91) is fixedly connected with the outer wall of the heat absorbing fin (8), and the outer wall of one side, far away from the heat absorbing fin (8), of the heat conducting fin (91) is fixedly connected with a heat dissipation fin (92).

3. An amorphous inductor core as defined in claim 1, wherein: the outer wall fixedly connected with pin (2) of annular magnetic core (1), through wires hole (3) have been seted up to the inner wall of pin (2).

4. An amorphous inductor core as defined in claim 1, wherein: and the outer walls of the inner side and the outer side of the shell (4) are fixedly connected with a second rubber pad (10).

5. An amorphous inductor core as defined in claim 4, wherein: and positioning grooves (5) are formed in the outer walls of the two sides of the second rubber pad (10), and the positioning grooves (5) are distributed in a circumferential array by taking the center of the shell (4) as the circle center.

6. An amorphous inductor core as defined in claim 2, wherein: the upper outer wall and the lower outer wall of each radiating fin (92) are provided with first circulation holes (93), and the outer walls of the two sides of each radiating fin (92) are provided with second circulation holes (94).