Self-shielding soft magnetic ferrite core
By setting support legs and heat dissipation holes under the base of the self-shielded soft ferrite core and opening arc grooves on the side of the base, the problem of poor heat dissipation is solved, more effective heat dissipation and temperature reduction are achieved, and the service life of the core is extended.
Patent Information
- Application Number
- CN202422534897.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The existing self-shielded soft ferrite core has poor heat dissipation effect, which causes the electromagnetic device to heat up quickly and shortens its service life.
Support legs are set under the core base and heat dissipation holes are opened on the base to accelerate heat dissipation by using natural convection effect. At the same time, arc grooves are opened on the front and back sides of the base to enhance air circulation and convection effect.
Through the improved design, the heat dissipation performance of the magnetic core is improved, the temperature is reduced and the service life is extended.
Smart Images
Figure CN223321087U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a magnetic core, more specifically, to a self-shielding soft ferrite magnetic core. Background Art
[0002] Self-shielding soft ferrite cores are a special type of soft ferrite material that combines the excellent magnetic properties of soft ferrite with its self-shielding characteristics. Soft ferrite itself is a ferrimagnetic oxide primarily composed of Fe2O3 and other metal oxides (such as Mn, Zn, Cu, and Ni). It possesses advantages such as low coercivity, high resistivity, and excellent high-frequency characteristics. Self-shielding refers to the core's ability to suppress or shield external electromagnetic interference to a certain extent.
[0003] Existing self-shielded soft ferrite cores are wrapped with coils when in use. The coil wrapping forms an additional layer of thermal resistance between the ferrite core and the external environment, which limits the transfer of heat from the core to the external environment, thereby affecting the heat dissipation effect. If the heat dissipation is not timely, the electromagnetic device will heat up quickly, thereby affecting its service life.
[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content
[0005] In response to the shortcomings of the prior art, the present invention aims to provide a self-shielded soft ferrite core. Support legs are provided below the core base, the legs being spaced a certain distance from the ground. Heat dissipation holes are provided on the core base, creating a space between the core base and the ground. This space allows air to circulate, thereby facilitating heat dissipation. Compared to designs that lie close to the ground, this design more effectively utilizes natural convection, accelerating heat transfer. The heat dissipation holes further enhance air circulation. When the core heats up, the heat is transferred to the outside of the core base through the heat dissipation holes, where it exchanges heat with the surrounding air. This heat exchange process helps lower the core's temperature and improve its heat dissipation performance. Arc-shaped grooves are provided on the front and rear sides of the core base, creating heat dissipation gaps. When the core is operating, heat is dissipated more quickly into the surrounding environment through these gaps. Furthermore, the gaps can guide air around the core for more efficient convection, further accelerating heat dissipation, improving the core's heat dissipation efficiency, and extending its service life.
[0006] The above technical purpose of the present utility model is achieved through the following technical solutions: a self-shielded soft magnetic ferrite core, including a core base, a fixed column is fixedly installed on the middle side of the upper end of the core base, a side plate is fixedly installed on the left and right sides of the upper end of the core base, a plurality of heat dissipation holes are provided on the upper end of the core base, and an arc groove is opened on the front and back sides of the core base.
[0007] The utility model is further configured as follows: a side surface of the side plate close to the fixing column is in an arc shape.
[0008] The utility model is further configured as follows: four supporting legs are fixedly installed on the lower end of the magnetic core base.
[0009] The present invention is further configured as follows: the fixing column is cylindrical.
[0010] The utility model is further configured such that: the tops of the fixing columns and the side panels are on the same horizontal plane.
[0011] In summary, the present invention has the following beneficial effects:
[0012] 1. By placing support legs below the core base, which are spaced a certain distance from the ground, and by providing heat dissipation holes on the core base, the support legs create a clear space between the core base and the ground. This space allows air to circulate, thereby facilitating heat dissipation. Compared to designs that lie close to the ground, this design more effectively utilizes natural convection to accelerate heat transfer. The heat dissipation holes further enhance air circulation. When the core heats up, the heat is transferred to the outside of the core base through the heat dissipation holes, where it exchanges heat with the surrounding air. This heat exchange process helps to lower the core temperature and improve its heat dissipation performance. Arc-shaped grooves on the front and back sides of the core base create heat dissipation gaps. During operation, heat is dissipated more quickly into the surrounding environment through these slots. Furthermore, the slots guide air around the core for more efficient convection, further accelerating heat dissipation, improving the core's heat dissipation efficiency, and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model from a top view.
[0015] In the figure: 1. Magnetic core base; 2. Fixing column; 3. Side panel; 4. Heat dissipation hole; 5. Arc groove; 6. Support leg. DETAILED DESCRIPTION
[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0017] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0018] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "sleeved / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood by those skilled in the art in specific circumstances.
[0019] The present invention will be described in detail below with reference to the accompanying drawings.
[0020] A self-shielded soft ferrite core, such as Figures 1 to 2 As shown, the core base 1 includes a cylindrical fixing post 2 fixedly mounted on the center of the upper end of the core base 1. Side panels 3 are fixedly mounted on both the left and right sides of the upper end of the core base 1. The tops of the fixing post 2 and the side panels 3 are on the same horizontal plane. The side of the side panels 3 closest to the fixing post 2 is curved. Several heat dissipation holes 4 are provided on the upper end of the core base 1. An arc-shaped slot 5 is provided on both the front and rear sides of the core base 1. The heat dissipation holes 4 further enhance air circulation. When the core heats up, the heat is transferred to the outside of the core base 1 through the heat dissipation holes 4 and exchanges heat with the surrounding air. This heat exchange process helps to reduce the temperature of the core and improve its heat dissipation performance. The arc-shaped slots 5 provided on the front and rear sides of the core base 1 create heat dissipation gaps. When the core is in operation, heat is dissipated more quickly into the surrounding environment through these slots. Furthermore, the slot design can also guide air convection around the core to form more efficient convection, further accelerating heat dissipation, improving the core's heat dissipation efficiency, and extending its service life.
[0021] like Figure 2As shown, four support legs 6 are fixedly mounted on the lower end of the core base 1. By placing the support legs 6 below the core base 1 and at a certain distance from the ground, the design of the support legs 6 creates a certain space between the core base 1 and the ground. This space allows air to circulate, thereby facilitating heat dissipation. Compared to designs that are close to the ground, this design can more effectively utilize natural convection and accelerate heat transfer.
[0022] Working Principle: By placing support legs 6 below the magnetic core base 1, which are spaced a certain distance from the ground, and providing heat dissipation holes 4 on the magnetic core base 1, the design of the support legs 6 creates a certain space between the magnetic core base 1 and the ground. This space allows air to circulate, thereby facilitating heat dissipation. Compared to designs that lie close to the ground, this design more effectively utilizes natural convection to accelerate heat transfer. The presence of the heat dissipation holes 4 further enhances air circulation. When the magnetic core heats up, the heat is transferred to the outside of the magnetic core base 1 through the heat dissipation holes 4, where it exchanges heat with the surrounding air. This heat exchange process helps to lower the core temperature and improve its heat dissipation performance. The arc-shaped slots 5 on the front and back sides of the magnetic core base 1 create heat dissipation gaps. During operation, heat is dissipated more quickly into the surrounding environment through these slots. Furthermore, the slot design guides air to form more efficient convection around the magnetic core, further accelerating heat dissipation, improving the core's heat dissipation efficiency, and extending its service life.
[0023] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A self-shielded soft ferrite core, comprising a core base (1), characterized in that: A fixing column (2) is fixedly mounted on the middle side of the upper end of the magnetic core base (1), a side plate (3) is fixedly mounted on both the left and right sides of the upper end of the magnetic core base (1), a plurality of heat dissipation holes (4) are provided on the upper end of the magnetic core base (1), and an arc-shaped groove (5) is provided on both the front and rear sides of the magnetic core base (1).
2. The self-shielding soft ferrite core according to claim 1, characterized in that: A side surface of the side plate (3) close to the fixing column (2) is in an arc shape.
3. The self-shielding soft ferrite core according to claim 1, wherein: Four supporting legs (6) are fixedly mounted on the lower end of the magnetic core base (1).
4. The self-shielding soft ferrite core according to claim 1, wherein: The fixing column (2) is cylindrical in shape.
5. The self-shielding soft ferrite core according to claim 1, characterized in that: The tops of the fixing columns (2) and the side panels (3) are on the same horizontal plane.