Inductor with built-in soft magnetic conductive piece

Abstract

The utility model relates to the technical field of inductors, and discloses an inductor with a built-in soft magnetic conducting piece, which comprises a soft magnetizer, a first magnetic block and a first winding, a second winding is arranged on the outer side of a second magnetic block, a U-shaped hoop is arranged on the outer side of the joint of the soft magnetizer and the first magnetic block, and the soft magnetizer is connected with the first magnetic block through the U-shaped hoop. According to the inductor, when the inductor is installed, wrapping type protection is formed on the outer side of the soft magnetizer through the U-shaped hoop and the hoop cover plate, connection damage is avoided, through cooperation of the dovetail connecting block and the dovetail groove, the soft magnetizer is prevented from being damaged, and the soft magnetizer is prevented from being damaged due to the fact that the U-shaped hoop and the hoop cover plate are matched with each other. The smooth installation of the soft magnetizer is facilitated, meanwhile, a larger connecting area can be formed between the magnetizer and the magnetic core, and the stable connection is ensured; the contact area with air is increased through the cooling fins, the heat exchange efficiency of the inductor and the outside is improved, and the overall cooling effect of the inductor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inductors, in particular to an inductor with a built-in soft magnetic conductive component. Background Art

[0002] An inductor is a commonly used electronic component that can store magnetic field energy. When current passes through a wire, a magnetic field is generated around the wire. Inductors are usually composed of a wire wound on a certain frame, which can be hollow or made of magnetic material. Inductors with built-in soft magnetic conductive parts refer to inductors that use soft magnetic materials as their core or frame. Soft magnetic materials are characterized by high magnetic permeability and low hysteresis loss, which means that they can generate a larger magnetic field in a smaller volume and generate less heat during repeated magnetization. Common soft magnetic materials include ferrites, silicon steel sheets, and amorphous alloys.

[0003] For example, a current Chinese patent (CN102368424A) discloses an inductor core consisting of three cores: at least two of which are made of different materials, including ferrite soft magnetic materials, metals or metal alloys including amorphous nanocrystalline materials, and organic soft magnetic materials. Because this toroidal core is made of at least two different magnetic materials, its permeability-frequency characteristics combine the characteristics of these different magnetic materials, resulting in a high permeability across a wide frequency range, meeting the trend toward broadband inductor devices.

[0004] However, in the prior art, an inductor with two windings generally uses two main magnetic blocks, one long magnetic block, and four small magnetic blocks to form a magnetic core. Among them, the two main magnetic blocks are used to wind a corresponding winding, and the long magnetic block is arranged between the two main magnetic blocks. When the long magnetic block and the main magnetic block are connected, they need to be assembled and contacted tightly, which can easily lead to the closed magnetic core or the core center column being broken due to installation errors, resulting in the inductor being scrapped. In addition, the inductor with two windings also generates a lot of heat during use. The existing inductors generally dissipate heat naturally through the outer casing, and the heat dissipation effect is poor. Utility Model Content

[0005] The purpose of the present invention is to provide an inductor with a built-in soft magnetic conductive component to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an inductor with a built-in soft magnetic conductive component, comprising: a soft magnetic conductive body, a first magnetic block and a first winding, wherein a first magnetic block and a second magnetic block are respectively provided on both sides of the soft magnetic conductive body, a first winding is provided on the outer side of the first magnetic block, and a second winding is provided on the outer side of the second magnetic block, a U-shaped clamp is provided on the outer side of the connection between the soft magnetic conductive body and the first magnetic block, a U-shaped clamp is also provided on the outer side of the connection between the soft magnetic conductive body and the second magnetic block, a clamp cover is provided above the U-shaped clamp, a dovetail connecting block is provided at the connection between the soft magnetic conductive body and the first magnetic block, dovetail grooves matching the dovetail connecting block are provided at both ends of the first magnetic block, a dovetail connecting block is also provided at the connection between the soft magnetic conductive body and the second magnetic block, and dovetail grooves matching the dovetail connecting block are provided at both ends of the second magnetic block.

[0007] Furthermore, an upper rubber strip is provided on the top of the clamp cover, a lower rubber strip is provided in the center of the bottom surface of the soft magnetic conductor, a heat dissipation cover is provided on the outside of the upper and lower rubber strips, heat dissipation holes are opened inside the heat dissipation cover, an outer shell is provided between the heat dissipation covers, and a mounting seat is provided on the outer wall of the outer shell.

[0008] Furthermore, heat conducting plates are provided in the middle of both sides of the soft magnetic conductor, and heat dissipating plates are provided on the upper and lower sides of the heat conducting plates.

[0009] Furthermore, the heat sink is L-shaped, with one section of the heat sink being in contact with the soft magnetic conductor and the other section extending below the heat dissipation hole.

[0010] Furthermore, the top surface of the heat sink located above is located above the first winding or the second winding, and the bottom surface of the heat sink located below is located below the first winding or the second winding.

[0011] Furthermore, the U-shaped clamp and the clamp cover are connected by bolts.

[0012] Furthermore, flanges are provided at the tops of both ends of the U-shaped clamp, through holes for bolt connection are provided inside the flanges, and through holes are provided at the four corners of the clamp cover.

[0013] Furthermore, the U-shaped clamp, clamp cover and bolts are all made of insulating plastic.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model provides a U-shaped clamp, a clamp cover and a heat sink, so that when the inductor with a built-in soft magnetic conductive part is used, the first magnetic block and the second magnetic block are connected through the soft magnetic conductive part, thereby avoiding hard contact between the magnetic conductive part and the magnetic core, and reducing the possibility of damage to the inductor during installation.

[0016] During inductor installation, the U-shaped clamp and clamp cover provide wrap-around protection for the outer side of the soft magnetic conductor to prevent connection damage. The dovetail connection block and dovetail slot facilitate smooth installation of the soft magnetic conductor while also increasing the connection area between the magnetic conductor and the core, ensuring a stable connection.

[0017] In addition, when the inductor generates heat during use, it can be quickly transferred to the heat sink through the thermal conductive sheet, which increases the contact area with the air, improves the heat exchange efficiency between the inductor and the outside world, and improves the overall heat dissipation effect of the inductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of an inductor with a built-in soft magnetic conductive component according to the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the inductor with built-in soft magnetic conductive parts of the utility model;

[0020] Figure 3 This is a main cross-sectional view of the inductor with built-in soft magnetic conductive parts of the utility model;

[0021] Figure 4 This is a partial schematic diagram of the internal structure of the inductor with built-in soft magnetic conductive parts of the utility model;

[0022] Figure 5 This is a front view of the internal structure of the inductor with built-in soft magnetic conductive parts of the utility model.

[0023] In the figure: 1. Housing; 2. Heat dissipation cover; 3. Heat dissipation hole; 4. Mounting base; 5. Soft magnetic conductor; 6. First magnetic block; 7. First winding; 8. Second magnetic block; 9. Second winding; 10. U-shaped clamp; 11. Clamp cover; 12. Upper rubber strip; 13. Thermal conductive sheet; 14. Heat sink; 15. Lower rubber strip; 16. Dovetail connection block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] See also Figure 1-Figure 5The utility model provides a technical solution: an inductor with a built-in soft magnetic conductive part, comprising: a soft magnetic conductive body 5, a first magnetic block 6 and a first winding 7, a first magnetic block 6 and a second magnetic block 8 are respectively provided on both sides of the soft magnetic conductive body 5, a first winding 7 is provided on the outside of the first magnetic block 6, and a second winding 9 is provided on the outside of the second magnetic block 8, a U-shaped clamp 10 is provided on the outside of the connection between the soft magnetic conductive body 5 and the first magnetic block 6, a U-shaped clamp 10 is also provided on the outside of the connection between the soft magnetic conductive body 5 and the second magnetic block 8, a clamp cover 11 is provided above the U-shaped clamp 10, a dovetail connecting block 16 is provided at the connection between the soft magnetic conductive body 5 and the first magnetic block 6, dovetail grooves are provided at both ends of the first magnetic block 6 to match the dovetail connecting block 16, a dovetail connecting block 16 is also provided at the connection between the soft magnetic conductive body 5 and the second magnetic block 8, and dovetail grooves are provided at both ends of the second magnetic block 8 to match the dovetail connecting block 16. When the inductor with built-in soft magnetic conductive parts is used, the first magnetic block 6 and the second magnetic block 7 are connected through the soft magnetic conductive body 5 to avoid hard contact between the magnetic conductive parts and the magnetic core, thereby reducing the possibility of damage to the inductor during installation.

[0026] When the inductor is installed, the U-shaped clamp 10 and the clamp cover 11 form a wrapping protection for the outer side of the soft magnetic conductor 5 to avoid connection damage. The cooperation between the dovetail connection block 16 and the dovetail groove facilitates the smooth installation of the soft magnetic conductor 5, while allowing a larger connection area between the magnetic conductor and the magnetic core to avoid leakage magnetic flux. In addition, when heat is generated during the use of the inductor, it can be quickly transferred to the heat sink 14 through the heat conducting sheet 13. The heat sink 14 increases the contact area with the air, thereby improving the heat exchange efficiency between the inductor and the outside world and improving the overall heat dissipation effect of the inductor.

[0027] An upper rubber strip 12 is located on the top of the clamp cover 11, and a lower rubber strip 15 is located in the center of the bottom surface of the soft magnetic conductor 5. A heat dissipation cover 2 is located outside the upper and lower rubber strips 12 and 15. Heat dissipation holes 3 are provided inside the heat dissipation cover 2. The housing 1 is located between the heat dissipation covers 2, and a mounting base 4 is provided on the outer wall of the housing 1. The upper and lower rubber strips 12 and 15 can cushion vibrations applied to the housing 1, preventing damage to the internal inductor.

[0028] Thermally conductive sheets 13 are located in the middle of both sides of the soft magnetic conductor 5. Heat sinks 14 are located above and below the thermally conductive sheets 13. The heat sinks 14 are L-shaped, with one section of the heat sink 14 contacting the soft magnetic conductor 5 and the other section extending below the heat dissipation holes 3. The top surface of the upper heat sink 14 is located above the first winding 7 or the second winding 9, while the bottom surface of the lower heat sink 14 is located below the first winding 7 or the second winding 9. The heat sinks 14 provide a certain degree of protection for the windings, preventing damage from foreign objects passing through the heat dissipation holes 3.

[0029] The U-shaped clamp 10 is connected to the clamp cover 11 by bolts. Flanges are provided at the top of each end of the U-shaped clamp 10, and through holes are provided inside the flanges for bolt connection. Through holes are provided at the four corners of the clamp cover 11 to ensure a stable connection between the U-shaped clamp 10, thereby ensuring a stable connection between the soft magnetic conductor 5 and the magnetic block.

[0030] The U-shaped clamp 10, the clamp cover 11 and the bolts are all made of insulating plastic to avoid electrical connection with the winding and damage to the inductor.

[0031] When the inductor with built-in soft magnetic conductive parts is used, the first magnetic block 6 and the second magnetic block 7 are connected through the soft magnetic conductive body 5 to avoid hard contact between the magnetic conductive parts and the magnetic core, thereby reducing the possibility of damage to the inductor during installation.

[0032] When installing the inductor, the U-shaped clamp 10 and the clamp cover 11 form a wrapping protection for the outer side of the soft magnetic conductor 5 to prevent connection damage. The cooperation between the dovetail connection block 16 and the dovetail groove facilitates the smooth installation of the soft magnetic conductor 5 while allowing a larger connection area between the magnetic conductor and the magnetic core to ensure a stable connection.

[0033] In addition, when the inductor generates heat during use, it can be quickly transferred to the heat sink 14 through the heat conductive sheet 13. The heat sink 14 increases the contact area with the air, improves the heat exchange efficiency between the inductor and the outside world, and improves the overall heat dissipation effect of the inductor.

[0034] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. Inductors with built-in soft magnetic conductive parts, including: A soft magnetic conductor (5), a first magnetic block (6) and a first winding (7), characterized in that: a first magnetic block (6) and a second magnetic block (8) are respectively provided on both sides of the soft magnetic conductor (5), a first winding (7) is provided on the outside of the first magnetic block (6), a second winding (9) is provided on the outside of the second magnetic block (8), a U-shaped clamp (10) is provided on the outside of the connection between the soft magnetic conductor (5) and the first magnetic block (6), and a U-shaped clamp (10) is also provided on the outside of the connection between the soft magnetic conductor (5) and the second magnetic block (8). A U-shaped clamp (10) is provided, and a clamp cover plate (11) is provided above the U-shaped clamp (10); a dovetail connection block (16) is provided at the connection between the soft magnetic conductor (5) and the first magnetic block (6); dovetail grooves matching the dovetail connection block (16) are provided at both ends of the first magnetic block (6); a dovetail connection block (16) is also provided at the connection between the soft magnetic conductor (5) and the second magnetic block (8); and dovetail grooves matching the dovetail connection block (16) are provided at both ends of the second magnetic block (8).

2. The inductor with a built-in soft magnetic conductive member according to claim 1, wherein: An upper rubber strip (12) is provided on the top of the clamp cover (11), a lower rubber strip (15) is provided at the center of the bottom surface of the soft magnetic conductor (5), a heat dissipation cover (2) is provided on the outside of the upper rubber strip (12) and the lower rubber strip (15), a heat dissipation hole (3) is provided inside the heat dissipation cover (2), a shell (1) is provided between the heat dissipation cover (2), and a mounting seat (4) is provided on the outer wall of the shell (1).

3. The inductor with a built-in soft magnetic conductive member according to claim 2, wherein: Heat conducting plates (13) are provided in the middle of both sides of the soft magnetic conductor (5), and heat dissipating plates (14) are provided on the upper and lower sides of the heat conducting plates (13).

4. The inductor with a built-in soft magnetic conductive member according to claim 3, wherein: The heat sink (14) is L-shaped, with one section of the heat sink (14) being in contact with the soft magnetic conductor (5) and the other section extending to below the heat dissipation hole (3).

5. The inductor with a built-in soft magnetic conductive member according to claim 4, wherein: The top surface of the heat sink (14) located above is located above the first winding (7) or the second winding (9), and the bottom surface of the heat sink (14) located below is located below the first winding (7) or the second winding (9).

6. The inductor with a built-in soft magnetic conductive member according to claim 1, wherein: The U-shaped clamp (10) and the clamp cover plate (11) are connected via bolts.

7. The inductor with a built-in soft magnetic conductive member according to claim 6, wherein: Flanges are provided at the tops of both ends of the U-shaped clamp (10), through holes for bolt connection are provided inside the flanges, and through holes are provided at the four corners of the clamp cover (11).

8. The inductor with a built-in soft magnetic conductive member according to claim 6, wherein: The U-shaped clamp (10), the clamp cover (11) and the bolt are all made of insulating plastic material.

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