E-shaped magnetic core convenient for heat dissipation

Abstract

The E-shaped magnetic core comprises an E-shaped magnetic core body, the E-shaped magnetic core body comprises a base, two side columns and a middle column, the middle column is provided with a heat dissipation channel and a plurality of heat conduction channels communicated with the heat dissipation channel, the heat conduction channels are located on the surface of a middle column body, and the heat conduction channels are evenly distributed around the middle column. The magnetic core has the advantages that the heat dissipation effect of the middle column is improved, the situation that heat cannot be dissipated in time due to the fact that the temperature is too high, and the performance of the magnetic core is affected is avoided, and the magnetic core is not prone to being damaged due to the fact that heat dissipation is not conducted in time. And the coils can be limited according to the number of coils wound on the middle column, the situation that the use effect of the magnetic core is affected due to the fact that the number of coils wound on the middle column is too small and the coils are prone to loosening is avoided, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the field of magnetic cores, and more specifically to an E-shaped magnetic core which is convenient for heat dissipation. Background Art

[0002] The magnetic core refers to a sintered magnetic metal oxide composed of a mixture of various iron oxides. It is used to increase the magnetic induction strength of the electromagnet. It is a magnetic conductive material set in the magnetic circuit of the inductor coil. These materials have high magnetic permeability and high magnetic flux density, as well as low loss characteristics. Therefore, they are widely used in coils and transformers of various electronic devices. However, the magnetic core will generate a lot of heat during use, which will cause the performance of the magnetic core to deteriorate, and even burn the coil. If the heat is not dissipated in time, it will cause damage to electromagnetic devices such as transformers. The traditional E-type magnetic core has a relatively better heat dissipation space than other types of magnetic cores.

[0003] However, the heat dissipation of the middle column of the traditional E-type magnetic core will still be affected by the two side columns, which may easily lead to excessive temperature and degradation of the core performance. In addition, when using an E-type magnetic core, the coil is usually wound directly on the middle column of the E-type magnetic core, and the coil cannot be limited according to the number of turns of the coil on the middle column to avoid the coil being loose due to too few turns of the coil on the middle column, which affects the use effect of the core and reduces practicality. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an E-type magnetic core that improves the heat dissipation effect of the center column, avoids the impact of excessive temperature on the performance of the magnetic core due to the inability to dissipate heat in time, and can limit the coil according to the number of turns of the coil on the center column, avoids the impact of too few turns of the coil on the center column on the use effect of the magnetic core due to looseness, and improves the practicality of the heat dissipation.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An E-shaped magnetic core that is easy to dissipate heat includes an E-shaped magnetic core body, the E-shaped magnetic core body includes a base, two side columns and a middle column, the middle column is provided with a heat dissipation channel and a plurality of heat conduction channels connected with the heat dissipation channel, the heat conduction channel is located on the column body surface of the middle column, the plurality of heat conduction channels are evenly arranged around the middle column, the base is provided with a plurality of heat conduction grooves that correspond one to one with the plurality of heat conduction channels respectively, two groups of heat dissipation modules are movably connected to the middle column, and the two groups of heat dissipation modules cooperate to form a winding space.

[0007] It is further configured that two thermally conductive silicone rings respectively cooperating with two groups of heat dissipation modules are sleeved on the middle column, the thermally conductive silicone ring can move on the middle column, each group of heat dissipation modules includes a plurality of heat dissipation fins, and the plurality of heat dissipation fins are installed on the thermally conductive silicone ring and evenly arranged around the thermally conductive silicone ring.

[0008] It is further configured that the base is provided with heat dissipation holes corresponding to the bottom of the center column.

[0009] It is further configured that the surface of the E-type magnetic core body is coated with a thermal conductive silicone grease layer.

[0010] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: the setting of two groups of heat dissipation modules and the cooperation of heat conduction channels and heat dissipation channels promote the heat extraction of the middle column, which facilitates faster heat dissipation, thereby improving the heat dissipation effect of the middle column of the E-type magnetic core body, avoiding the temperature being too high and unable to dissipate heat in time to affect the performance of the magnetic core, and cooperating with the two groups of heat dissipation modules to be installed on two thermally conductive silicone rings respectively, and the elastic thermally conductive silicone ring moves on the middle column and is tightly clamped on the middle column for fixation, so that the winding space can be adjusted in size according to needs, which is convenient for the winding space to adapt to the number of windings of different coils. At the same time, the two groups of heat dissipation modules limit the coils wound on the middle column and placed in the winding space, so that the coils can be limited according to the number of windings of the coils on the middle column, avoiding the loosening of the coils due to too few windings on the middle column, affecting the use effect of the magnetic core, and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0012] Figure 2 It is a structural diagram of the coordination between the center column and the base.

[0013] Figure 3 It is a structural schematic diagram of the coordination between the center column and the heat conduction groove.

[0014] In the figure: E-type magnetic core body 1, base 2, side column 3, middle column 4, heat dissipation channel 5, heat conduction channel 6, heat dissipation module 7, winding space 8, thermal conductive silicone ring 9, heat dissipation fins 10, heat dissipation holes 11, and heat conduction grooves 12. DETAILED DESCRIPTION

[0015] Reference Figures 1 to 3 The utility model is further described in detail.

[0016] The invention discloses an E-type magnetic core which is convenient for heat dissipation, comprising an E-type magnetic core body 1, wherein the E-type magnetic core body 1 comprises a base 2, two side columns 3 and a middle column 4, wherein a heat dissipation channel 5 and a plurality of heat conduction channels 6 connected with the heat dissipation channel 5 are provided on the middle column 4, wherein the heat conduction channel 6 is located on the column body surface of the middle column 4, and the plurality of heat conduction channels 6 are evenly arranged around the middle column 4, wherein a plurality of heat conduction grooves 12 which respectively correspond to the plurality of heat conduction channels 6 are provided on the base 2, wherein two groups of heat dissipation modules 7 are provided on the middle column 4, and the two groups of heat dissipation modules 7 cooperate to form a winding space 8, wherein two heat conductive silicone rings 9 which respectively cooperate with the two groups of heat dissipation modules 7 are sleeved on the middle column 4, wherein each group of heat dissipation modules 7 comprises a plurality of heat dissipation fins 10, and the plurality of heat dissipation fins 10 are mounted on the heat conductive silicone ring 9 and evenly arranged around the heat conductive silicone ring 9, wherein the elastic heat conductive silicone ring 9 can be moved on the middle column 4 by pulling the silicone ring and is tightly clamped on the middle column 4 after rebounding, so that the heat dissipation fins 10 on the heat conductive silicone ring 9 are fixed at this position for limiting the coil of the winding space 8.

[0017] Working principle: The heat of the middle column 4 is dissipated through the heat dissipation channel 5, and the heat conduction channel 6 is used to speed up the speed of heat transfer to the heat dissipation channel 5, which promotes the timely heat extraction of the middle column 4, and facilitates faster heat dissipation. At the same time, the heat is quickly transferred to the base 2 for extraction through the heat conduction channel 6, and the heat conduction groove 12 on the base 2 is used to speed up the heat extraction speed, and avoid the heat on the middle column 4 from accumulating in the space between the middle column 4 and the two side columns 3 and reducing the heat dissipation speed due to the obstruction of the side columns 3. The setting of the heat dissipation module 7 improves the heat dissipation effect on the middle column 4, thereby further promoting the timely heat extraction of the middle column 4, and then improving the heat dissipation effect of the middle column 4 on the E-type magnetic core body 1, and avoiding the temperature being too high and unable to dissipate heat in time to affect the magnetic core performance The two heat dissipation modules 7 are respectively connected to the middle column 4 through two heat-conducting silicone rings 9, and the elastic heat-conducting silicone rings 9 are stretched and contracted to move on the middle column 4 and are tightly clamped on the middle column 4 for fixation when the heat-conducting silicone rings 9 rebound, so that the winding space 8 can be adjusted in size according to needs, so that the winding space 8 can adapt to the number of windings of different coils. At the same time, the two heat dissipation modules 7 respectively installed on the two heat-conducting silicone rings 9 cooperate to limit the coils wound on the middle column 4 and placed in the winding space 8, so that the winding space size can be adjusted according to the number of windings of the coil on the middle column 4 and the coil can be limited, so as to avoid the coil being easily loosened due to too few windings on the middle column 4, which affects the use effect of the magnetic core and improves practicality.

[0018] Since the heat dissipation module 7 includes a plurality of heat dissipation fins 10 installed on the thermally conductive silicone ring 9, while the plurality of heat dissipation fins 10 limit the coil in the winding space 8, the heat on the middle column 4 can be transferred to the heat dissipation fins 10 through the thermally conductive silicone ring 9 and quickly discharged, thereby further improving the heat dissipation effect, reducing the temperature and reducing the influence of high temperature on the performance of the magnetic core.

[0019] The base 2 is provided with heat dissipation holes 11 corresponding to the bottom of the middle column 4, so as to facilitate further rapid extraction of heat transferred from the middle column 4 and the heat dissipation channel 5 to the base 2, thereby improving the heat dissipation effect of the middle column 4, further avoiding the influence of high temperature on the performance of the E-type magnetic core body 1, and enhancing practicality.

[0020] The surface of the E-type magnetic core body 1 is coated with a thermal conductive silicone grease layer, which is beneficial to the heat dissipation of the E-type magnetic core body 1 and enhances practicality.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. An E-shaped magnetic core for facilitating heat dissipation, comprising an E-shaped magnetic core body (1), the E-shaped magnetic core body (1) comprising a base (2), two side columns (3) and a middle column (4), characterized in that: The middle column (4) is provided with a heat dissipation channel (5) and a plurality of heat conduction channels (6) connected to the heat dissipation channel (5); the heat conduction channel (6) is located on the column body surface of the middle column (4); the plurality of heat conduction channels (6) are evenly arranged around the middle column (4); the base (2) is provided with a plurality of heat conduction grooves (12) corresponding to the plurality of heat conduction channels (6) one by one; two groups of heat dissipation modules (7) are movably connected to the middle column (4); the two groups of heat dissipation modules (7) cooperate to form a winding space (8).

2. The E-shaped magnetic core for heat dissipation according to claim 1, characterized in that: Two heat-conducting silicone rings (9) respectively matched with two groups of heat-dissipating modules (7) are sleeved on the middle column (4); the heat-conducting silicone rings (9) are movable on the middle column (4); each group of heat-dissipating modules (7) comprises a plurality of heat-dissipating fins (10); the plurality of heat-dissipating fins (10) are mounted on the heat-conducting silicone rings (9) and are evenly arranged around the heat-conducting silicone rings (9).

3. The E-shaped magnetic core for heat dissipation according to claim 2, characterized in that: The base (2) is provided with a heat dissipation hole (11) corresponding to the bottom of the center column (4).

4. The E-shaped magnetic core for heat dissipation according to claim 3, characterized in that: The surface of the E-shaped magnetic core body (1) is coated with a thermal conductive silicone grease layer.

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