E-shaped magnetic core convenient for heat dissipation
Technical Field
The utility model relates to the field of magnetic cores, in particular to an E-shaped magnetic core convenient for heat dissipation.
Background
The magnetic core is a sintered magnetic metal oxide composed of various ferric oxide mixtures, is used for increasing the magnetic induction intensity of an electromagnet, is provided with a magnetic permeable object body in a magnetic circuit of an inductance coil, has the characteristics of high magnetic permeability, high magnetic flux density and low loss, and is widely applied to coils and transformers of various electronic equipment, however, a large amount of heat generated by the magnetic core in use can cause the performance of the magnetic core to be reduced, even the coil is burnt out, if the heat is not dissipated timely, electromagnetic devices such as the transformer are damaged, and the traditional E-shaped magnetic core has relatively good heat dissipation space compared with other types of magnetic cores;
But traditional E type magnetic core's center pillar heat dissipation still can be influenced by both sides post, appears the condition that the high temperature leads to the magnetic core performance to descend easily, and when using E type magnetic core, normally directly wind the coil on E type magnetic core's center pillar, can not be spacing to the coil according to the coil number of windings of coil on the center pillar, avoid because the coil is too few on the center pillar the coil number of turns easily loosely influence magnetic core result of use, reduce the practicality.
Disclosure of utility model
Aiming at the defects existing in the prior art, the utility model aims to provide the E-shaped magnetic core which has the advantages of improving the heat dissipation effect of the center pillar, avoiding the influence of excessive temperature on the performance of the magnetic core due to incapability of timely heat dissipation, limiting the coil according to the number of coils wound on the center pillar, avoiding the influence on the use effect of the magnetic core due to the fact that the coil is too few in winding number on the center pillar and improving the practicability and is convenient for heat dissipation.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides an E type magnetic core convenient to heat dissipation, includes E type magnetic core body, and E type magnetic core body includes base, two side posts and center pillar, open on the center pillar have the heat dissipation passageway and with a plurality of heat conduction passageway of heat dissipation passageway intercommunication, the heat conduction passageway is located the shaft surface of center pillar, and a plurality of heat conduction passageway encircle the center pillar and evenly arrange, open on the base have respectively with a plurality of heat conduction grooves of a plurality of heat conduction passageway one-to-one, swing joint has two sets of heat dissipation modules on the center pillar, two sets of heat dissipation module cooperation form wire winding space.
The heat dissipation module comprises a middle column, wherein the middle column is sleeved with two heat conduction silica gel rings which are matched with two groups of heat dissipation modules respectively, the heat conduction silica gel rings can move on the middle column, each group of heat dissipation modules comprises a plurality of heat dissipation fins, and the heat dissipation fins are arranged on the heat conduction silica gel rings and evenly distributed around the heat conduction silica gel rings.
The base is further provided with a heat dissipation hole corresponding to the bottom of the middle column.
The E-shaped magnetic core is characterized in that the surface of the E-shaped magnetic core body is coated with a heat-conducting silicone grease layer.
By adopting the technical scheme, the heat dissipation device has the beneficial effects that the two groups of heat dissipation modules are arranged and matched with the heat conduction channel and the heat dissipation channel to promote the heat of the center pillar to be conducted out, so that the heat dissipation is faster, the heat dissipation effect of the center pillar of the E-shaped magnetic core body is improved, the influence of excessive temperature on the magnetic core performance due to incapability of timely heat dissipation is avoided, the two groups of heat dissipation modules are matched and respectively installed on the two heat conduction silica gel rings, the elastic heat conduction silica gel rings move on the center pillar and are tightly clamped on the center pillar for fixing, the winding space can be adjusted according to the requirement, the winding space is convenient to adapt to the winding circle number of different coils, and meanwhile, the two groups of heat dissipation modules limit the coils which are wound on the center pillar and are arranged in the winding space according to the winding circle number of the coils, so that the use effect of the magnetic core is prevented from being influenced by too little easy looseness of the winding circle number of the coils on the center pillar, and the practicability is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is a schematic structural view of the middle column and the base.
Fig. 3 is a schematic structural view of the middle column and the heat conducting groove.
In the figure, an E-shaped magnetic core body 1, a base 2, side columns 3, a middle column 4, a heat dissipation channel 5, a heat conduction channel 6, a heat dissipation module 7, a winding space 8, a heat conduction silica gel ring 9, a heat dissipation fin 10, heat dissipation holes 11 and a heat conduction groove 12 are arranged.
Detailed Description
Embodiments of the present utility model will be further described with reference to fig. 1 to 3.
The utility model provides an E type magnetic core convenient to heat dissipation, including E type magnetic core body 1, E type magnetic core body 1 includes the base 2, two side posts 3 and center pillar 4, it has heat dissipation passageway 5 and a plurality of heat conduction passageway 6 with heat dissipation passageway 5 intercommunication to open on the center pillar 4, heat conduction passageway 6 is located the shaft surface of center pillar 4, a plurality of heat conduction passageway 6 encircle center pillar 4 evenly arrange, it has a plurality of heat conduction grooves 12 with a plurality of heat conduction passageway 6 one-to-one respectively to open on the base 2, be equipped with two sets of heat dissipation module 7 on the center pillar 4, two sets of heat dissipation module 7 cooperate to form wire winding space 8, cup joint two heat conduction silica gel rings 9 with two sets of heat dissipation module 7 respectively on the center pillar 4, a plurality of heat dissipation fins 10 are installed on heat conduction silica gel ring 9 and are evenly arranged around heat conduction silica gel ring 9, the heat dissipation fin 10 fixed position that makes on the silica gel ring 9 is used for spacing to the coil of this space 8 after the resilience.
Working principle: the heat of the middle column 4 is radiated through the radiating channel 5, the heat transfer to the radiating channel 5 is accelerated by the matching heat conducting channel 6, the timely radiation of the heat of the middle column 4 is promoted, the heat radiation is faster, the heat is quickly transferred to the base 2 by the matching heat conducting channel 6, the radiation speed is accelerated by the matching heat conducting groove 12 on the base 2, the heat on the middle column 4 is prevented from being gathered in the space between the middle column 4 and the two side columns 3, the radiation speed is reduced due to the obstruction of the side columns 3, the radiation effect on the middle column 4 is improved by the arrangement of the radiating module 7, the timely radiation of the heat of the middle column 4 is further promoted, the radiation effect of the middle column 4 on the E-shaped magnetic core body 1 is improved, the influence of the heat radiation of the excessive temperature on the magnetic core performance is avoided, the two groups of heat dissipation modules 7 are matched and movably connected to the center post 4 through the two heat conduction silica gel coils 9 respectively, the heat conduction silica gel coils 9 with elasticity stretch out and draw back to enable the heat conduction silica gel coils to move on the center post 4 and be tightly clamped on the center post 4 for fixing when the heat conduction silica gel coils 9 rebound, the winding space 8 can be adjusted according to the needs, the winding space 8 is convenient to adapt to the winding number of coils of different coils, and meanwhile the two groups of heat dissipation modules 7 respectively arranged on the two heat conduction silica gel coils 9 are matched to limit the coils which are wound on the center post 4 and are placed in the winding space 8, so that the size of the winding space can be adjusted according to the winding number of the coils on the center post 4 and the coils are limited, the influence on the use effect of a magnetic core due to the fact that the winding number of coils on the center post 4 is too small and is easy to loosen is avoided, and the practicability is improved;
Because the heat radiation module 7 includes a plurality of radiating fins 10 of installing on heat conduction silica gel circle 9, when making a plurality of radiating fins 10 carry out spacingly to the coil in the wire winding space 8, heat on the center post 4 can carry and transmit to radiating fins 10 on deriving fast through heat conduction silica gel circle 9, further improves the radiating effect, reduces the influence of temperature reduction high temperature to magnetic core performance.
The base 2 is provided with the radiating holes 11 corresponding to the bottom of the center pillar 4, so that heat transferred to the base 2 by the center pillar 4 and the radiating channel 5 is conveniently and further rapidly led out, the radiating effect of the center pillar 4 is improved, the influence of high temperature on the performance of the E-type magnetic core body 1 is further avoided, and the practicability is enhanced.
The heat conduction silicone grease layer is coated on the surface of the E-shaped magnetic core body 1, so that heat dissipation of the E-shaped magnetic core body 1 is facilitated, and practicality is improved.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model, but one skilled in the art can make common changes and substitutions within the scope of the technical solution of the present utility model.