Novel potting combined PFC (Power Factor Correction) inductor structure
By combining the PFC inductor structure with nickel-zinc thermally conductive magnetic adhesive, the problems of high cost, large space occupation, and poor electromagnetic interference resistance of traditional PFC inductors are solved, achieving cost reduction, improved anti-interference performance, and enhanced mechanical strength.
Patent Information
- Application Number
- CN202423235208.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Traditional PFC inductors suffer from high cost, large space occupation, poor electromagnetic interference resistance, and unstable fixing.
A combined PFC inductor structure is adopted, which uses an iron-silicon magnetic core to form a complete magnetic circuit and is encapsulated with a nickel-zinc thermally conductive magnetic adhesive structure to form an outer magnetic shielding layer to improve anti-interference performance. The non-conductive nature of the nickel-zinc thermally conductive magnetic adhesive is used for protection.
It reduces the cost of PFC inductors, improves electromagnetic interference immunity, enhances mechanical strength, and reduces temperature rise through heat dissipation, preventing oxidation and impact damage.
Smart Images
Figure CN223624794U_ABST
Abstract
Description
Technical Field
[0001] This invention improves the electromagnetic interference resistance of PFC inductors, increases the structural strength of inductors, and reduces the cost of magnetic components; this technology belongs to the field of electromagnetic component technology. Background Technology
[0002] With the rise of new energy projects (photovoltaics, inverters, charging piles, etc.), the performance requirements for electronic components are getting higher and higher, and the control of relative costs is becoming more and more stringent. The main factors to consider in the selection of electronic components are cost and performance, which are inversely proportional. In order to better accommodate these two factors, a new type of potted composite PFC inductor structure has been invented.
[0003] Disadvantages of traditional PFC inductors:
[0004] 1. Circuits using multiple PFC inductors are expensive and occupy a large amount of PCB board space.
[0005] 2. Traditional PFC inductors have poor electromagnetic interference immunity, requiring increased inductance and size to meet electromagnetic interference immunity requirements.
[0006] 3. Traditional PFC inductors are relatively large and there is a risk of them detaching from the PCB board when fixed on it.
[0007] Therefore, in response to the increasing demand for electronic products in the market, electromagnetic interference technology needs further breakthroughs and improvements. Utility Model Content
[0008] The purpose of this invention is to provide a novel potted composite PFC inductor structure to solve the problems mentioned in the background.
[0009] The objective of this utility model is achieved through the following technical solution:
[0010] A novel potted composite PFC inductor structure includes a composite PFC inductor structure (1), a shell structure (2), a nickel-zinc thermally conductive magnetic adhesive structure (3), a first iron-silicon magnetic core structure (4), a first coil structure (5), a shared iron-silicon magnetic core structure (6), a second coil structure (7), a second iron-silicon magnetic core structure (8), a fixing hole structure (9), and a shell body structure (10). The composite PFC inductor structure (1) is assembled with the shell structure (2), and the potted nickel-zinc thermally conductive magnetic adhesive structure (3) fixes the composite PFC inductor structure (1) within the shell structure (2).
[0011] Preferably, the combined PFC inductor structure includes: a first iron-silicon core structure (4), a first coil structure (5), a shared iron-silicon core structure (6), a second coil structure (7), and a second iron-silicon core structure (8); the combined PFC inductor is based on three iron-silicon cores, and by utilizing the magnetic circuit principle of magnetic materials, the iron-silicon cores between the shared coils achieve a complete magnetic circuit; thus, two PFC inductors are formed by the three iron-silicon cores.
[0012] Preferably, the outer shell structure (2) includes a fixing hole structure (9) and an outer shell body structure (10).
[0013] To achieve the above objectives, this utility model assembles the combined PFC inductor structure (1) with the shell structure (2) and encapsulates the nickel-zinc thermally conductive magnetic adhesive structure (3) to form an external magnetic shield, thereby improving the anti-interference performance of the PFC inductor. The non-conductive nature of the nickel-zinc thermally conductive magnetic adhesive structure is used to protect the PFC inductor, satisfying waterproof, anti-oxidation and anti-collision requirements. This also effectively improves the mechanical strength of the product.
[0014] Beneficial effects of this utility model
[0015] This utility model discloses a novel potted composite PFC inductor structure, including a composite PFC inductor structure (1), a shell structure (2), a nickel-zinc thermally conductive magnetic adhesive structure (3), a first iron-silicon magnetic core structure (4), a first coil structure (5), a shared iron-silicon magnetic core structure (6), a second coil structure (7), a second iron-silicon magnetic core structure (8), a fixing hole structure (9), and a shell body structure (10). It offers significant advantages in PFC inductor performance and electromagnetic interference resistance: 1. The composite PFC inductor uses a shared iron-silicon magnetic core, effectively reducing costs; 2. The nickel-zinc thermally conductive magnetic adhesive forms an outer shielding layer, enhancing the electromagnetic interference resistance of the composite PFC inductor; 3. The heat dissipation effect of the nickel-zinc thermally conductive magnetic adhesive reduces the temperature rise of the composite PFC inductor; 4. The dual protection of the nickel-zinc thermally conductive magnetic adhesive and the shell improves the mechanical strength of the composite PFC inductor. Attached Figure Description
[0016] The present invention will be further described with reference to the accompanying drawings, but the content of the drawings does not constitute any limitation on the present invention.
[0017] Figure 1 This is a structural diagram of the finished product of this utility model;
[0018] Figure 2 This is a disassembled structural diagram of the combined PFC inductor of this utility model;
[0019] Figure 3 This is a structural diagram of the outer shell of this utility model.
[0020] exist Figure 1-3 This includes:
[0021] Combined PFC inductor structure (1), shell structure (2), nickel-zinc thermally conductive magnetic adhesive structure (3), iron-silicon magnetic core structure one (4), coil structure one (5), shared iron-silicon magnetic core structure (6), coil structure two (7), iron-silicon magnetic core structure two (8), fixing hole structure (9), shell body structure (10). Detailed Implementation
[0022] The present invention will be further described in conjunction with the following embodiments. Example
[0023] refer to Figure 1-3 The present invention provides a technical solution: a potted combined PFC inductor structure, comprising, a combined PFC inductor structure (1) placed inside a shell structure (2), a nickel-zinc thermally conductive magnetic adhesive structure (3) filling the space between the combined PFC inductor structure (1) and the shell structure (2), the combined PFC inductor structure (1) comprising a first iron-silicon magnetic core structure (4), a first coil structure (5), a shared iron-silicon magnetic core structure (6), a second coil structure (7), and a second iron-silicon magnetic core structure (8), and the shell structure (2) comprising a fixing hole structure (9) and a shell body structure (10).
[0024] refer to Figure 1-2 The combined PFC inductor structure (1) includes the right end of the iron-silicon core structure one (4) nested into the left end of the coil structure one (5), the left end of the common iron-silicon core structure (6) nested into the right end of the coil structure one (5), and the left end of the iron-silicon core structure two (8) nested into the right end of the coil structure two (7). The two side columns of the left end of the iron-silicon core structure one (4) and the right end of the common iron-silicon core structure (6) are aligned and tightly attached, and the two side columns of the left end of the iron-silicon core structure two (8) are aligned and tightly attached to the right end of the common iron-silicon core structure (6).
[0025] It should be noted that the pins of coil structure one (5) nested between iron-silicon core structure one (4) and common iron-silicon core structure (6) and the pins of coil structure two (7) nested between common iron-silicon core structure (6) and iron-silicon core structure two (8) should all extend upwards.
[0026] refer to Figure 3 The outer shell body structure (10) has multiple sets of fixing hole structures (9).
[0027] When in use, first assemble the first iron-silicon magnetic core structure (4), the first coil structure (5), the shared iron-silicon magnetic core structure (6), the second coil structure (7), and the second iron-silicon magnetic core structure (8) into a combined PFC inductor structure (1). Then, place the combined PFC inductor structure (1) inside the shell structure (2), and then inject the nickel-zinc thermally conductive magnetic adhesive structure (3) to fill the gap between the combined PFC inductor structure (1) and the shell structure (2). Finally, bond and fix the combined PFC inductor structure (1) inside the shell structure (2).
[0028] This embodiment assembles the combined PFC inductor structure with the shell structure, and encapsulates it with a nickel-zinc thermally conductive magnetic adhesive structure to form an external magnetic shield, thereby improving the anti-interference performance of the PFC inductor. The non-conductive nature of the nickel-zinc thermally conductive magnetic adhesive structure is used to protect the PFC inductor, satisfying waterproof, anti-oxidation and anti-collision requirements; and more effectively improving the mechanical strength of the product.
[0029] This novel combined PFC inductor uses a common iron-silicon magnetic core, effectively reducing costs; it utilizes nickel-zinc thermally conductive magnetic adhesive to form an outer shielding layer, improving the electromagnetic interference resistance of the combined PFC inductor; it utilizes the heat dissipation effect of nickel-zinc thermally conductive magnetic adhesive to reduce the temperature rise of the combined PFC inductor; and it utilizes the dual protection of nickel-zinc thermally conductive magnetic adhesive and the outer shell to improve the mechanical strength of the combined PFC inductor.
[0030] Finally, the claims of this utility model patent should be explained. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A novel potted composite PFC inductor structure, comprising a composite PFC inductor structure (1), a shell structure (2), a nickel-zinc thermally conductive magnetic adhesive structure (3), a first iron-silicon magnetic core structure (4), a first coil structure (5), a shared iron-silicon magnetic core structure (6), a second coil structure (7), a second iron-silicon magnetic core structure (8), a fixing hole structure (9), and a shell body structure (10), characterized in that: The combined PFC inductor structure (1) is assembled with the shell structure (2), and the combined PFC inductor structure (1) is fixed inside the shell structure (2) by potting a nickel-zinc thermally conductive magnetic adhesive structure (3).
2. The novel potted composite PFC inductor structure according to claim 1, characterized in that: The combined PFC inductor structure (1) includes: iron-silicon core structure one (4), coil structure one (5), shared iron-silicon core structure (6), coil structure two (7), and iron-silicon core structure two (8); the combined PFC inductor is based on three iron-silicon cores, and by utilizing the magnetic circuit principle of magnetic materials, the iron-silicon cores between the shared coils achieve a complete magnetic circuit; thus, two PFC inductors are formed by the three iron-silicon cores.
3. The novel potted composite PFC inductor structure according to claim 1, characterized in that: The outer shell structure (2) includes a fixing hole structure (9) and an outer shell body structure (10).