A combined magnetic ring coil

Abstract

The utility model discloses a combined magnetic ring coil, which comprises a core coil, a connecting clamp, a connecting pin and a supporting ring. The core coil is located in the outer circular groove of the supporting ring. Each connecting clamp is sleeved on both sides of the core of the adjacent core coil at the open end, and is connected by the connecting pin. The groove end of the connecting clamp faces the outside. After the core coils are connected by the connecting clamp and the connecting pin to form a chain structure, the chain structure is placed in the outer circular groove of the supporting ring, and the two ends of the chain structure are connected by the connecting clamp and the connecting pin to form a regular polygon structure. The utility model has good heat dissipation and small heat generation, and can effectively improve the inductance power. The core coil uses general winding equipment and general winding process, and the quality, efficiency and precision are better than those of the ring winding machine and the ring winding process. The core coils can be connected in series or in parallel according to the needs. The gear switch can be externally connected to serve as an adjustable inductance. Different branches can be connected respectively, and each branch can be managed independently. The utility model has good adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of inductor technology, and specifically relates to a magnetic ring coil. Background Technology

[0002] Common winding methods for inductor coils include single-layer winding, multi-layer winding, and spiral winding. General-purpose winding equipment, after years of development, can fully meet these winding requirements. However, the core of a magnetic ring coil has a toroidal structure, making it difficult for general-purpose winding equipment to wind. Manual winding is time-consuming and labor-intensive. While toroidal winding machines offer advantages in precision and efficiency, the clamping and changing of components during magnetic ring coil winding is cumbersome. Toroidal winding machines have high installation complexity, high maintenance costs, and high technical dependence, especially when winding miniaturized magnetic ring coils, where the requirements are even higher, limiting their application to high-end fields with stringent winding quality requirements. Furthermore, toroidal winding machines are only suitable for specific products such as toroidal coils and toroidal transformers, exhibiting poor versatility.

[0003] Existing magnetic ring coils not only have winding problems, but also heat generated by eddy currents in the iron core is not easily dissipated due to the tightly spiraled winding. The heat inside the winding is also not easily dissipated. To prevent the magnetic ring coil from overheating and causing damage, it is necessary to limit its operating current. How to stabilize the operating temperature of the magnetic ring coil has become a bottleneck restricting the power of the magnetic ring coil.

[0004] Existing magnetic ring coils also suffer from poor adaptability and inconvenient maintenance due to their integral structure and fixed resistance. They are often scrapped as a whole after damage, resulting in high maintenance costs. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a combined magnetic ring coil with better thermal stability, better winding processability, better adaptability, and easier maintenance.

[0006] The specific solution of this utility model is as follows: A combined magnetic ring coil includes: an iron core coil, a connecting card, a connecting pin, and a support ring; the iron core coil is located in the outer circular groove of the support ring and is evenly distributed in a ring; the open end of each connecting card is sleeved on both sides of the iron core of the adjacent iron core coil, the pin holes of the two are aligned, and they are connected by the connecting pin, with the groove end of the connecting card facing outward.

[0007] The iron core coil includes: rivets, an iron core, and a coil; the rivets are located in rivet holes on both sides of the iron core, and the inner hole of the rivet is a pin hole; the coil is located in the center position of the middle section of the iron core.

[0008] The rivet is a hollow copper rivet or a hollow aluminum rivet.

[0009] The core is a laminated core with rivet holes on both sides in the lateral direction. The outer edges of both sides in the lateral direction are concentric arcs with the rivet holes, and the two sides in the longitudinal direction are straight edges. After lamination and riveting, it is soaked in insulating varnish.

[0010] The coil is a rectangular winding of enameled wire.

[0011] The connector has a slotted structure and is made of brass. Each of the two side openings has two mirror-symmetrical centering pin holes, which are aligned with each other. Both ends of the side openings have arcs concentric with the pin holes. The outer groove is a V-shaped groove, and the connector has an M-shaped cross-section.

[0012] The connecting pin is a straight groove type elastic cylindrical pin, made of elastic brass or elastic aluminum alloy.

[0013] The support ring is circular with a rectangular groove along its outer edge; it is made of phenolic resin reinforced with fabric.

[0014] This invention connects the various iron core coils into a chain structure using connecting clips and connecting pins. The grooved end of the connecting clip faces outward and is placed in the outer circular groove of the support ring. Then, the two ends of the chain structure are connected with connecting clips and connecting pins to form a regular polygonal structure, which is equivalent to a ring (such as a chain drive structure).

[0015] Compared with the prior art, this utility model has the following advantages: The heat generation of this invention is low: the iron core coil of this invention adopts laminated iron core and segmented combination, which can effectively reduce eddy currents and reduce heat generation; each iron core coil can be connected in series / reverse series, in parallel / reverse parallel, and the impedance is easy to adjust. The current can be adjusted according to the working conditions to control the heat generation and prevent the iron core coil from overheating.

[0016] This invention has good heat dissipation: It uses connecting clips and connecting pins to connect the various iron core coils. The iron core coils are assembled in segments and separated from each other, providing ample space for heat dissipation. The connecting pins penetrate deep into the inner layer of the iron core, which can transfer the heat of the iron core to the connecting clips more evenly. The connecting clips have an M-shaped cross-section, which increases the surface area and acts as heat sinks, improving the heat dissipation effect.

[0017] This invention can improve inductor power: It has good heat dissipation, low heat generation, and better operating temperature stability, which can increase the operating current of the inductor and effectively improve the inductor power.

[0018] The winding process of this utility model is good: the iron core coil of this utility model uses mature general winding equipment and general winding process, and its quality, efficiency and precision are superior to toroidal winding machines and toroidal winding process.

[0019] This invention has good adaptability: the iron core coils in various parts of this invention can be connected in series (equivalent to the overall structure) / in reverse series, in parallel / in reverse parallel according to the needs of the circuit board; it can also be connected to an external position switch to act as an adjustable inductor; its adaptability is far better than the existing integrated structure.

[0020] This utility model is easy to maintain: it uses connecting clips and connecting pins to connect the various iron core coils. It can be disassembled and assembled by simply removing / inserting the connecting pins, allowing for precise replacement, avoiding complete scrapping, and effectively reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view schematic diagram of the iron core coil of this utility model; Figure 3 This is a side view of the iron core coil of this utility model; Figure 4 This is a side view of the connector card. Figure 5 This is a side view of the support ring of this utility model. Detailed Implementation

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a combined magnetic ring coil includes: an iron core coil 1, a connecting card 2, a connecting pin 3, and a support ring 4; the iron core coil 1 is located in the outer circular groove of the support ring 4 and is evenly distributed in a ring; the open end of each connecting card 2 is sleeved on both sides of the iron core of the adjacent iron core coil 1, the pin holes of the two are aligned, and they are clamped by the connecting pin 3, with the groove end of the connecting card 2 facing outward.

[0023] The iron core coil 1 includes: rivet 1-1, iron core 1-2, and coil 1-3; rivet 1-1 is located in the rivet holes on both sides of iron core 1-2, and the inner hole of rivet 1-1 is a pin hole; coil 1-3 is located in the center position of the middle section of iron core 1-2.

[0024] The rivet 1-1 is a hollow copper rivet or a hollow aluminum rivet.

[0025] The iron core 1-2 is a laminated iron core with rivet holes on both sides in the lateral direction. The outer edges of both sides in the lateral direction are concentric arcs with the rivet holes, and the two sides in the longitudinal direction are straight edges. After lamination and riveting, it is soaked in insulating varnish.

[0026] The coils 1-3 are rectangular windings of enameled wire.

[0027] The connecting card 2 has a slotted structure and is made of brass. There are two mirror-symmetrical centering pin holes on each of the two side openings. The pin holes on both sides are aligned with each other, and there are arcs concentric with the pin holes at both ends of the openings on both sides. The outer groove is a V-shaped groove, and the connecting card 2 as a whole has an M-shaped cross section.

[0028] The connecting pin 3 is a straight groove type elastic cylindrical pin, made of elastic brass or elastic aluminum alloy.

[0029] The support ring 4 is circular with a rectangular groove on its outer edge; it is made of phenolic resin with a fabric reinforcement.

[0030] In this invention, each iron core coil 1 is connected into a chain structure using connecting clips 2 and connecting pins 3. The grooved end of the connecting clip 2 faces outward and is placed in the outer circular groove of the support ring 4. Then, the two ends of the chain structure are connected by connecting clips 2 and connecting pins 3 to form a regular polygonal structure, which is equivalent to a ring (such as a chain drive structure).

Claims

1. A combined magnetic ring coil, comprising: Iron core coil, connecting clip, connecting pin, and support ring; characterized in that: the iron core coil is located in the outer circular groove of the support ring; the open end of each connecting clip is sleeved on both sides of the iron core of the adjacent iron core coil, and is clamped by the connecting pin, with the groove end of the connecting clip facing outward.

2. The combined magnetic ring coil according to claim 1, characterized in that: The iron core coil includes: rivets, an iron core, and a coil; the rivets are located in rivet holes on both sides of the iron core, and the inner hole of the rivet is a pin hole; the coil is located in the center position of the middle section of the iron core.

3. A combined magnetic ring coil according to claim 1 or 2, characterized in that: The iron core is a laminated iron core with rivet holes on both sides in the lateral direction. The outer edges of both sides in the lateral direction are concentric arcs with the rivet holes, and the two sides in the longitudinal direction are straight edges.

4. A combined magnetic ring coil according to claim 3, characterized in that: The connector has a slotted structure with two mirror-symmetrical centering pin holes on each of the two side openings. The pin holes on both sides are aligned with each other, and both ends of the openings on both sides have arcs concentric with the pin holes. The outer groove is a V-shaped groove, and the connector as a whole has an M-shaped cross-section.

5. A combined magnetic ring coil according to claim 4, characterized in that: The support ring is circular with a rectangular groove along its outer edge.

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