Annular inductor structure

Abstract

The utility model discloses an annular inductor structure which is characterized in that an upper shell is connected with a lower shell through a central partition, a plurality of inclined struts are arranged in the center of the interior of the shell, a coil partition is arranged outside the shell, an exhaust port is formed in the coil partition, a concave boss is arranged at the joint of the exhaust port and the shell, and the side edge of the central partition is embedded into a groove in the coil partition. The top of the center partition is connected with the upper shell through a fixing pressing hook, the bottom of the center partition is fixed into a buckle hole in the base through a fastening buckle, the upper portion of the base is connected with the wiring terminal, the wiring terminal is provided with an inverted buckle and a wiring hole, the wiring terminal is fixed to the base through the inverted buckle, the magnetic core is installed in the shell, and any end face of the magnetic core is provided with a buffer pad. And a plurality of air passages are arranged on the surface of the shell, so that the interior of the inductor is not easy to shake, and the heat dissipation effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of inductors, in particular to a ring-shaped inductor structure. Background Art

[0002] Inductors are a complex and important field, and toroidal inductors play a crucial role in the electronics field. Through filtering, tuning, and amplification, they improve signal quality and transmission efficiency. They enable efficient power transmission through power management, energy conversion, and electromagnetic coupling. By suppressing electromagnetic interference and improving a system's anti-interference capabilities, they protect the system from interference and enhance its stability and reliability.

[0003] In the prior art, patent number CN210349545U discloses a multi-air-gap annular magnetic core and annular inductor, in which a plurality of air gaps are provided on the annular magnetic core to separate it into a plurality of magnetic core segments, at least two of the plurality of air gaps are first air gaps, and at least one is a second air gap; a first low-magnetic-permeability material partition and a second low-magnetic-permeability material partition adapted to their shapes are respectively installed in the first air gap and the second air gap; the opposing surfaces of the two adjacent magnetic core segments are used as the two opposing side walls of the air gap, the two opposing side walls of the first air gap are parallel, the two opposing side walls of the second air gap are not parallel, and the distance between the two opposing side walls of the second air gap gradually increases along the radial direction of the annular magnetic core. Utility Model Content

[0004] The purpose of the utility model is to provide a ring-shaped inductor structure, which makes the inside of the inductor less likely to shake and enhances the heat dissipation effect.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A toroidal inductor structure comprises a housing comprising an upper housing and a lower housing, wherein the upper housing is connected to the lower housing via a central partition, and a plurality of diagonal braces are provided in the center of the interior of the housing; a coil partition is provided on the exterior of the housing; an exhaust port is provided on the coil partition, and a concave boss is provided at the connection between the exhaust port and the housing.

[0007] Preferably, the side edges of the central barrier are embedded in the grooves in the coil barrier.

[0008] Preferably, the top of the central baffle is connected to the upper shell through a fixed pressure hook; the bottom of the central baffle is fixed to the buckle hole on the base through a fastening buckle.

[0009] Preferably, terminal holes and mounting holes are provided on the periphery of the base; and wiring terminals are connected to the top of the base.

[0010] Preferably, the wiring terminal is provided with an undercut and a wiring hole.

[0011] Preferably, the connection terminal is fixed to the base by an undercut.

[0012] Preferably, a magnetic core is installed inside the shell; and a buffer pad is used on any end surface of the magnetic core.

[0013] Preferably, a plurality of air passages are provided on the surface of the shell.

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

[0015] 1. The utility model adds an inner hole oblique support bar to the magnetic core plastic shell, which can effectively fix the magnetic core radially through the inner hole of the magnetic core to avoid radial shaking of the magnetic core. At the same time, a buffer pad is used on any end surface of the magnetic core to ensure that the magnetic core is fixed and avoid axial shaking of the magnetic core.

[0016] 2. The contact surface between the shell and the magnetic core of the utility model adopts a concave boss support structure, and air channels are left between the bosses to facilitate air circulation and heat dissipation.

[0017] 3. The shell of the utility model has air holes, which can be connected to compressed air to dissipate heat from the magnetic core. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the utility model.

[0019] Figure 2 This is an exploded view of the structure of the utility model.

[0020] Figure 3 This is a schematic diagram of the lower shell of the utility model.

[0021] Figure 4 This is the cross-sectional view AA of the lower shell of the present invention.

[0022] Figure 5 This is a schematic diagram of the central partition of the utility model.

[0023] Figure 6 This is a schematic diagram of the base of the utility model.

[0024] Figure 7 This is a schematic diagram of the wiring terminal of the present utility model.

[0025] In the figure: 1. Upper shell; 2. Lower shell; 21. Diagonal support bar; 22. Concave boss; 23. Exhaust port; 24. Coil spacer; 25. Air duct; 3. Center spacer; 31. Fixed pressure hook; 32. Fastening buckle; 4. Base; 41. Buckle hole; 42. Terminal hole; 43. Mounting hole; 5. Wiring terminal; 51. Wiring hole; 52. Undercut; 6. Magnetic core; 7. Buffer pad; 8. Shell. DETAILED DESCRIPTION

[0026] 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.

[0027] In the present invention, the design of the ring inductor structure focuses on improving its performance, stability, and adaptability to meet the demand for high-performance inductors in modern electronic devices. An embodiment of this solution is fully described below.

[0028] The structural design of the ring inductor is based on the upper shell (1) and the lower shell (2), which are tightly connected by a central baffle (3) to form a solid ring structure. This design not only provides the necessary mechanical support, but also optimizes the distribution of the internal magnetic field, thereby improving the electrical performance of the inductor. The design of the diagonal braces (21) is cleverly located in the inner center of the shell (8). They not only enhance the structural strength of the shell (8), but also reduce the interference of the external magnetic field on the inside of the inductor through their diagonal layout, ensuring the stability of the inductor in complex electromagnetic environments. In addition, the diagonal brace design added to the inner hole of the magnetic core (6) effectively fixes the magnetic core radially through the inner hole of the magnetic core to avoid radial shaking of the magnetic core. At the same time, a buffer pad (7) is used on either end face of the magnetic core to ensure that the magnetic core is fixed and avoid axial shaking of the magnetic core.

[0029] In the ring inductor structure of the present invention, the embedded design of the center partition (3) and the coil partition (24) is one of the key technologies for reducing electromagnetic interference (EMI). The side of the center partition (3) is embedded in the groove in the coil partition (24). This precise fit not only enhances the compactness of the structure, but also improves the overall performance of the inductor by reducing electromagnetic interference between coils. The groove design on the coil partition (24) is precisely calculated to ensure that the center partition (3) can be tightly fitted to form a seamless structure, which further reduces the possibility of electromagnetic interference, thereby ensuring the stability and reliability of the inductor in high-frequency applications.

[0030] In addition, this seamless structure design also helps to improve the mechanical strength and durability of the inductor. During operation of the inductor, the groove of the coil barrier (24) is tightly integrated with the side of the center barrier (3), which can effectively reduce structural damage caused by mechanical vibration or impact, thereby extending the service life of the inductor. At the same time, this design also helps to improve the thermal management performance of the inductor, because the seamless structure can provide a better heat conduction path, helping to more effectively dissipate the heat generated by the inductor during operation to the surrounding environment.

[0031] Furthermore, the seamless structure significantly improves the inductor's thermal management. Because the seamless structure provides a better heat conduction path, it helps dissipate heat generated by the inductor during operation more efficiently into the surrounding environment. This design prevents heat from accumulating inside the inductor, thereby avoiding potential performance degradation or damage due to overheating. Good heat dissipation design is crucial to maintaining the inductor's stable performance and long-term reliability.

[0032] The fixing method of the magnetic core (6) mentioned in the embodiment further ensures the stable fixing of the magnetic core by adding diagonal braces in the inner hole of the magnetic core and using buffer pads (7) on either end surface of the magnetic core, thereby preventing radial and axial shaking of the magnetic core, which is crucial for maintaining the high performance of the inductor and reducing electromagnetic interference. The use of the buffer pads (7) not only provides additional mechanical support, but also helps to absorb possible vibrations and protect the magnetic core from damage.

[0033] In summary, the annular inductor structure of the present invention not only improves the performance and stability of the inductor through the embedded design of the center partition (3) and the coil partition (24), and the stable fixing method of the magnetic core (6), but also helps to reduce electromagnetic interference and extend the service life of the inductor, so that it plays a more important role in modern electronic equipment.

[0034] The top of the upper shell (1) is connected to the central baffle (3) by a fixed pressure hook (31). The design of the fixed pressure hook (31) takes into account the requirements of easy assembly and disassembly while ensuring the firmness of the connection. The bottom of the central baffle (3) is fixed to the buckle hole (41) on the base (4) by a fastening buckle (32). This fixing method is not only simple but also can ensure the stability of the inductor under various conditions of use. The fixed pressure hook (31) at the top of the central baffle (3) and the fastening buckle (32) at the bottom work together to fix the inductor to the base, providing additional stability.

[0035] The design of the base (4) fully considers the convenience of installation and maintenance. The periphery is provided with terminal holes (42) and mounting holes (43). The layout of these holes is reasonable, which facilitates the installation and wiring of the inductor. The wiring terminal (5) connected to the top of the base (4) is the key part of the connection between the inductor and the external circuit. Its design fully considers the reliability and safety of the electrical connection.

[0036] The design details of the terminal block (5) reflect the importance attached to the performance and stability of the inductor. The design of the undercut (52) not only allows the terminal block (5) to be firmly fixed to the base (4), but also provides additional mechanical support to prevent the connection from loosening due to vibration or impact. The design of the wiring hole (51) takes into account the convenience of wire access and ensures the reliability of the electrical connection.

[0037] The connection terminal (5) is fixed to the base (4) via the undercut (52). This fixing method is not only simple but also can effectively prevent the connection from loosening due to vibration or impact, thereby ensuring the stability and reliability of the inductor during use.

[0038] The magnetic core (6) mounted inside the housing (8) is the core component of the inductor, and its performance directly affects the overall performance of the inductor. To protect the magnetic core and reduce the impact of vibration on its performance, a buffer pad (7) is used on either end of the magnetic core (6). The material and design of the buffer pad (7) have been carefully selected to ensure that while absorbing vibration, it will not negatively affect the performance of the magnetic core.

[0039] In the ring inductor structure of the present invention, heat dissipation design is one of the key factors to ensure the long-term stable operation of the inductor. In order to ensure that the heat inside the inductor can be effectively dissipated, a plurality of air channels (25) are designed on the surface of the shell (8). The layout and size of these air channels (25) are carefully calculated to maximize the heat exchange efficiency.

[0040] The design of the air channel (25) takes into account the principles of thermodynamics, particularly the principles of heat conduction and convection, ensuring that heat can be evenly transferred from the inside of the inductor to the outside. This design increases the surface area of ​​the housing (8) and improves the efficiency of heat exchange with the surrounding environment, thereby reducing the temperature rise of the inductor during operation. Temperature control is crucial to the performance of the inductor, as excessively high temperatures may cause material performance degradation or even damage the inductor.

[0041] In addition, the design of evenly distributed diagonal braces on the inner hole wall of the shell (8) provides additional fixation and support for the magnetic core (6). When the inner hole of the magnetic core contacts the diagonal braces and does not meet the installation requirements, the diagonal braces can be elastically deformed by applying pressure to the magnetic core, thereby achieving the fixation of the magnetic core. This design allows the magnetic core to have a certain adjustment space during the installation process, while ensuring that the magnetic core does not shake in the diameter direction when the inductor is working, which helps to maintain the electrical performance and mechanical stability of the inductor. The design of the diagonal braces on the inner hole of the magnetic core is to ensure that the magnetic core can be fixed radially and avoid radial shaking when the inductor is working. This design allows the magnetic core to fit tightly during installation by arranging diagonal braces around the inner hole of the magnetic core, thereby reducing displacement caused by mechanical vibration or thermal expansion. The structural design of the diagonal braces should take into account the elasticity and strength of the magnetic core material to ensure that the magnetic core will not be damaged during the fixing process, while also ensuring sufficient contact area to provide stable support.

[0042] The inner plane cross-section of the shell (8) adopts a concave segmented boss design. This structure not only provides support for the magnetic core (6), but also increases the heat dissipation area of ​​the magnetic core. The magnetic core is installed on the bosses on both sides, and most of its upper and lower planes are in a suspended state. This design effectively increases the heat dissipation area of ​​the core because the suspended part can directly contact the air, thereby promoting heat dissipation. At the same time, when compressed air is connected, the concave structure in the middle part acts as an air channel to facilitate air circulation and further reduce the temperature of the magnetic core. This forced air cooling design significantly improves the heat dissipation efficiency, especially when the inductor operates under high power or high frequency conditions, it can effectively prevent the magnetic core from overheating. The upper / lower surface of the plastic shell where the magnetic core is placed adopts a "concave" boss support structure. This structure not only provides stable support for the magnetic core, but also forms an air channel between the bosses to facilitate air circulation and heat dissipation. This design allows hot air to flow from one side of the magnetic core to the other side, thereby taking away the heat generated by the magnetic core and improving the heat dissipation efficiency.

[0043] In order to further stabilize the magnetic core and reduce axial shaking, a buffer pad is used on either end surface of the magnetic core. The buffer pad is usually made of a material with good elasticity and resistance to compression deformation. It can provide a good vibration isolation effect between the magnetic core and the inductor housing (8), absorb stress caused by temperature changes or mechanical shock, and protect the magnetic core from damage.

[0044] The air holes added to the housing (8) allow compressed air to be introduced for direct forced cooling of the magnetic core. This active heat dissipation method can rapidly reduce the core temperature through the flow of compressed air when a large amount of heat is generated in the magnetic core, thereby preventing overheating from affecting the performance and life of the inductor.

[0045] In summary, the toroidal inductor structure of this utility model, through the design of the diagonal braces, cushions, and heat dissipation ducts and air holes within the core, not only improves the core's fixed stability but also effectively solves the core's heat dissipation problem, ensuring efficient and stable operation under various operating conditions. These innovative designs enable the inductor to maintain excellent performance even after long periods of operation, meeting the demand for high-performance inductors in modern electronic devices.

[0046] In the ring inductor structure of the present invention, the design of the base is the key to achieving diversified installation and connection methods of the inductor. The following is a further detailed description of the embodiment:

[0047] The innovative design of the base of this utility model features terminal holes. This allows the inductor coil to be soldered through the holes and then inserted into the terminal holes, or the terminals to be inserted first and then the coil soldered. This flexible connection method provides users with multiple installation options, allowing them to choose the most suitable connection method based on their specific needs. The client can use the included terminal leads to connect the inductor to the PCB. This design not only improves installation convenience but also enhances the stability of the electrical connection between the inductor and the circuit board.

[0048] The base of this utility model is also equipped with mounting holes. This design allows the inductor to be independently installed on the customer's chassis or body, independent of the PCB. This mounting method effectively improves the customer's PCB's resistance to vibration and shock, as the inductor is no longer directly fixed to the PCB, reducing the risk of damage from vibration or shock. Furthermore, this design simplifies inductor replacement and maintenance, as the inductor can be installed and removed as a standalone module.

[0049] This new structure offers flexibility, allowing the base and center barrier clip to be removed, transforming the inductor into a conventional design. This design allows the inductor to adapt to different application scenarios and customer needs, whether a compact structure is required or a traditional mounting method is desired.

[0050] The patented structural design also takes into account the application of the inductor in different circuits, and is suitable for single-phase or multi-phase inductors. This universal design makes the inductor widely applicable to various power management and signal processing circuits. Whether it is a single-phase power system or a multi-phase power system, the inductor of the utility model can provide stable and efficient performance.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A ring inductor structure, characterized in that: The shell (8) comprises an upper shell (1) and a lower shell (2); the upper shell (1) is connected to the lower shell (2) via a central baffle (3); a plurality of oblique braces (21) are provided at the center of the interior of the shell (8); a coil baffle (24) is provided on the exterior of the shell (8); an exhaust port (23) is provided on the coil baffle (24); a concave boss (22) is provided at the connection between the exhaust port (23) and the shell (8).

2. The ring inductor structure according to claim 1, characterized in that: The side of the central partition (3) is embedded in the groove in the coil partition (24).

3. A toroidal inductor structure according to claim 1 or 2, characterized in that: The top of the central baffle (3) is connected to the upper shell (1) via a fixed pressing hook (31); the bottom of the central baffle (3) is fixed in a buckle hole (41) on the base (4) via a fastening buckle (32).

4. The ring inductor structure according to claim 3, characterized in that: The base (4) is provided with a terminal hole (42) and a mounting hole (43) on the periphery; the base (4) is connected to a wiring terminal (5) on the top.

5. The ring inductor structure according to claim 4, characterized in that: An undercut (52) and a wiring hole (51) are provided above the wiring terminal (5).

6. The ring inductor structure according to claim 5, characterized in that: The connection terminal (5) is fixed to the base (4) via an undercut (52).

7. The ring inductor structure according to claim 1, characterized in that: A magnetic core (6) is installed inside the shell (8); a buffer pad (7) is used on any end surface of the magnetic core (6).

8. The ring inductor structure according to claim 1, characterized in that: A plurality of air passages (25) are provided on the surface of the shell (8).

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