PFC board card in-line magnetic integrated inductor structure

Abstract

The utility model discloses a PFC (Power Factor Correction) board card in-line magnetic integrated inductor structure, which belongs to the technical field of inductors and comprises a support connecting base, a magnetic core structure, a winding group, an isolating block, a conductive connecting sheet and a sleeving piece, the magnetic core structure is arranged on the supporting connecting base, and the two winding groups are oppositely wound on the two sides of the magnetic core structure at intervals; the isolation block is arranged between at least one end part of the winding group and the magnetic core structure; the four conductive connecting pieces are evenly distributed at the bottom of the supporting connecting base, each conductive connecting piece is correspondingly connected with the corresponding winding set, and the connecting position of each conductive connecting piece and the corresponding winding set is correspondingly sleeved with one sleeving piece. The PFC board card in-line magnetic integrated inductor structure solves the technical problem of how to improve the installation convenience of the integrated inductor structure.

Description

Technical Field

[0001] This utility model relates to the technical field of inductor devices, and in particular to a PFC board through-hole magnetic integrated inductor structure. Background Technology

[0002] An inductor, also known as an inductor coil, choke, or reactor, is an electronic component that converts electrical energy into magnetic energy and stores it. Its core function is to impede changes in current through self-inductance.

[0003] The physical characteristics of inductors originate from the law of electromagnetic induction. When a changing current flows through a conductor, typically a coil, a changing magnetic field is generated around it. This changing magnetic field induces an electromotive force (EMF) in the conductor, also known as a self-induced EMF, which is in the opposite direction to the change in current, thus hindering sudden changes in current. This characteristic is called "inductance," and its essence is the conductor's resistance to changes in current. Inductors are typically composed of coils made of wound wire, and may contain a magnetic core, such as ferrite, to enhance the magnetic field storage capacity.

[0004] Based on this, Chinese Patent CN108022716B discloses an inductor that minimizes magnetic coupling between inductive elements. In one embodiment disclosed in this patent document, the inductor includes multiple coils and a magnetic core forming a closed magnetic circuit for the magnetic flux generated by each coil. The magnetic core has multiple pillars passing through the multiple coils and yokes connecting the two ends of each pillar. The permeability of the material forming the pillars is lower than the permeability of the material forming the yokes. Therefore, in an inductor with multiple inductive elements, magnetic coupling between the inductive elements can be reduced.

[0005] However, the inductor structures disclosed above still present technical problems related to inconvenient installation and use. Specifically, power factor correction (PFC) is a key technology in the field of power electronics, aiming to improve the power factor of devices (bringing it close to 1) and optimize power utilization efficiency by reducing current harmonics and reactive power. Its core objectives include reducing grid pollution, improving energy efficiency, and meeting regulatory requirements. Traditional bridge rectifier circuits have low power factors, typically around 0.6; this leads to harmonic injection into the grid, and PFC reduces harmonic interference by correcting the current waveform. Furthermore, it can improve power transmission efficiency by reducing reactive power components, lowering line losses and thermal effects; moreover, modern electronic equipment must comply with international energy efficiency standards, such as IEC 61000-3-2, requiring inductors to meet mandatory high power factor design requirements. However, the inductor structures disclosed in existing technologies are difficult to directly install onto designated modules, usually requiring the use of technologies such as surface mount technology (SMT) for stable installation; this makes them inconvenient to use. Utility Model Content

[0006] Therefore, it is necessary to provide a PFC board direct-insertion magnetic integrated inductor structure to address the technical issue of how to improve the installation convenience of integrated inductor structures.

[0007] A PFC board through-hole magnetic integrated inductor structure includes: a support connection base, a magnetic core structure, winding groups, an isolation block, conductive connecting pieces, and a socket; the magnetic core structure is disposed on the support connection base, and two winding groups are wound around the sides of the magnetic core structure at intervals; the isolation block is disposed between at least one end of each winding group and the magnetic core structure; four conductive connecting pieces are evenly distributed on the bottom of the support connection base, each conductive connecting piece is connected to a winding group, and a socket is sleeved at the connection point between each conductive connecting piece and the winding group.

[0008] Furthermore, the support connection base has a support seat, a limiting connection cavity, a mounting hole, a lead wire insertion hole, a hub socket, and auxiliary feet.

[0009] Furthermore, the limiting connection cavity is provided on the support base, and the magnetic core structure is disposed in the limiting connection cavity; a plurality of mounting holes are evenly distributed around the limiting connection cavity, and four lead wire insertion holes are evenly disposed in the limiting connection cavity.

[0010] Furthermore, the four hub sockets are evenly spaced and arranged on one side below the support base, and the auxiliary legs are evenly distributed on the other side of the bottom of the support connection base relative to the hub sockets.

[0011] Furthermore, the magnetic core structure has an I-shaped frame and a wound core.

[0012] Furthermore, a winding core is provided on each side of the I-shaped frame, and a winding group is wound around each winding core.

[0013] Furthermore, each of the winding groups is provided with a winding unit, a first pin, a second pin, and a pin extension.

[0014] Furthermore, the winding unit is wound around the outside of the winding core, and the two ends of the winding unit are respectively connected to the first pin and the second pin, and the first pin or the second pin is respectively inserted into the lead wire socket.

[0015] Furthermore, the pin extension is disposed below the support base, and the pin extension is connected to the second pin.

[0016] Furthermore, each of the conductive connecting pieces is correspondingly inserted into one of the hub sockets, wherein one end of the two pin extensions is connected to the second pin, and the other end of the two pin extensions is connected to the conductive connecting piece.

[0017] In summary, the PFC board through-hole magnetic integrated inductor structure of this utility model includes a supporting connection base, a magnetic core structure, a winding group, an isolation block, a conductive connecting piece, and a socket. The magnetic core structure is disposed on the supporting connection base, and two winding groups are wound around the sides of the magnetic core structure at intervals. An isolation block is disposed between at least one end of each winding group and the magnetic core structure. Four conductive connecting pieces are evenly distributed on the bottom of the supporting connection base, each conductive connecting piece is connected to a winding group, and a socket is sleeved at the connection point between each conductive connecting piece and the winding group. This utility model discloses a PFC board direct-insertion magnetic integrated inductor structure. Through an integrated electromagnetic induction structure, the supporting connection base serves as a base for circuit connection, enabling the inductor element to quickly achieve electrical connection with external circuits. In other words, the inductor element can be directly inserted and installed in external circuit boards or other installation environments through the supporting connection base. Thus, this utility model discloses a PFC board direct-insertion magnetic integrated inductor structure, solving the technical problem of how to improve the installation convenience of integrated inductor structures. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a PFC board with a through-hole magnetic integrated inductor according to the present invention;

[0019] Figure 2 This is an exploded view of the PFC board direct-insertion magnetic integrated inductor structure of this utility model from another direction.

[0020] Figure 3 This is a schematic diagram of another embodiment of the PFC board direct-insertion magnetic integrated inductor structure of this utility model. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Please refer to the following: Figures 1 to 3 This utility model discloses a PFC board through-hole magnetic integrated inductor structure, comprising: a support connection base 1, a magnetic core structure 2, a winding group 3, an isolation block 4, a conductive connecting piece 5, and a socket 6; the magnetic core structure 2 is disposed on the support connection base 1, and two winding groups 3 are wound around each other at intervals on both sides of the magnetic core structure 2; at least one end of the winding group 3 is provided with an isolation block 4 between it and the magnetic core structure 2; four conductive connecting pieces 5 are evenly distributed on the bottom of the support connection base 1, each conductive connecting piece 5 is connected to a winding group 3, and a socket 6 is sleeved at the connection point between each conductive connecting piece 5 and the winding group 3.

[0028] Specifically, the support and connection base 1 of the PFC board through-hole magnetic integrated inductor structure of this utility model can integrate the magnetic core structure 2 and the winding group 3 on it, thereby facilitating its connection with external circuits. Furthermore, to reduce current harmonics and reactive power and optimize energy utilization efficiency, the support and connection base 1 is preferably made of insulating material, for example, plastic manufactured by injection molding. In addition, the isolation block 4 is also preferably made of insulating material, used to insulate the ends of the winding group 3 from the magnetic core structure 2. The magnetic core structure 2 serves both as the winding skeleton of the winding group 3 and as a magnetic induction element. Therefore, when a changing current passes through the winding group 3, a changing magnetic field is generated around the magnetic core structure 2 and the winding group 3. This magnetic field change induces an electromotive force (EMF) in the conductor, also known as a self-induced EMF, whose direction is opposite to the direction of current change, thus hindering sudden changes in current. Furthermore, the conductive lead-out portion of the winding assembly 3 can pass through the support connection base 1 and connect to the conductive connecting piece 5 at the bottom of the support connection base 1. To enhance the connection stability between the winding assembly 3 and the conductive connecting piece 5, the connecting joint is also fitted with the sleeve 6, thereby reinforcing the connection position. After the components are integrated on the support connection base 1, they can be directly inserted into an external circuit, and the conductive connecting piece 5 can be electrically connected to the external circuit by soldering. Thus, the PFC board direct-insertion magnetic integrated inductor structure of this utility model, through the integrated electromagnetic induction structure, uses the support connection base 1 as a base for circuit connection, enabling the inductor element to quickly achieve electrical connection with the external circuit, thereby solving the technical problem of how to improve the installation convenience of the integrated inductor structure.

[0029] Furthermore, the support connection base 1 has a support base 101, a limiting connection cavity 102, mounting holes 103, lead wire insertion holes 104, wire hub sockets 105, and auxiliary support feet 106; the limiting connection cavity 102 is disposed on the support base 101, and the magnetic core structure 2 is disposed in the limiting connection cavity 102; a plurality of mounting holes 103 are evenly distributed around the periphery of the limiting connection cavity 102, and four lead wire insertion holes 104 are evenly distributed in the limiting connection cavity 102; four wire hub sockets 105 are evenly arranged at intervals on one side below the support base 101, and a plurality of auxiliary support feet 106 are evenly distributed on the other side of the bottom of the support connection base 1 relative to the wire hub sockets 105.

[0030] Furthermore, the magnetic core structure 2 has an I-shaped skeleton 201 and a winding core 202; one winding core 202 is provided on each side of the I-shaped skeleton 201, and a winding group 3 is wound around each winding core 202. Specifically, the overall shape of the I-shaped skeleton 201 is similar to the shape of the Chinese character "工", and it is mainly made of soft magnetic materials, such as magnetic materials like iron-silicon-aluminum, etc.; its main function is to support and provide a magnetic field; one winding core 202 is respectively provided on the left and right sides of the I-shaped skeleton 201, and the winding group 3 is wound around the periphery of each winding core 202.

[0031] Furthermore, each winding group 3 is provided with a winding unit 301, a first pin 302, a second pin 303, and a pin extension 304; the winding unit 301 is wound around and provided outside the winding core 202, both ends of the winding unit 301 are respectively connected to the first pin 302 and the second pin 303, and the first pin 302 or the second pin 303 is respectively inserted through the lead insertion hole 104; the pin extension 304 is provided under the support base 101, and the pin extension 304 is connected to the second pin 303. Specifically, the winding unit 301, the first pin 302, the second pin 303, and the pin extension 304 can all be made of conductive materials, for example, they can be metal materials such as copper or copper alloy.

[0032] Furthermore, at least one isolation block 4 is sleeved in the winding core 202, and an isolation block 4 is provided between at least one end of the winding unit 301 and the I-shaped skeleton 201. Specifically, the isolation block 4 can be made of insulating materials, for example, it can be polymer materials such as plastics. Insulating isolation can be achieved between one end or both ends of the winding unit 301 and the I-shaped skeleton 201 through an isolation block 4.

[0033] Furthermore, the conductive connection piece 5 can be made of conductive materials, for example, it can be made of metal materials such as copper or copper alloy; each conductive connection piece 5 is respectively inserted through a集线插座105 (assuming this is a misspelling and should be a proper term, but translated as is for now), and one end of two of the pin extensions 304 is connected to the second pin 303, and the other end of these two pin extensions 304 is connected to the conductive connection piece 5.

[0034] Specifically, the socket 6 can be integrally formed with the conductive connecting piece 5 as an extension structure of the conductive connecting piece 5 through processes such as stamping and bending. Therefore, the socket 6 can be made of the same material as the conductive connecting piece 5. More specifically, the socket 6 is respectively disposed at the connection point between the pin extension 304 and the conductive connecting piece 5, and the socket 6 is respectively disposed at the connection point between the first pin 302 and the conductive connecting piece 5.

[0035] Specifically, the hub socket 105 is mainly used to integrate the pins of the winding group 3 from both ends onto one side of the support base 101, thereby facilitating the electrical connection between external circuits and the winding group 3, and improving the ease of installation and use of the inductor structure. Furthermore, to increase installation stability and ensure that the support base 101 is installed flush with the mounting surface in an external environment, the auxiliary support leg 106 can be positioned on the other side of the bottom of the support base 101 relative to the hub socket 105, allowing it to provide flush support.

[0036] In summary, this utility model discloses a PFC board through-hole magnetic integrated inductor structure comprising a supporting base 1, a magnetic core structure 2, a winding group 3, an isolation block 4, conductive connecting pieces 5, and a socket 6. The magnetic core structure 2 is mounted on the supporting base 1, and two winding groups 3 are wound alternately around the two sides of the magnetic core structure 2. An isolation block 4 is provided between at least one end of each winding group 3 and the magnetic core structure 2. Four conductive connecting pieces 5 are evenly distributed at the bottom of the supporting base 1, each conductive connecting piece 5 being connected to a corresponding winding group 3, and a socket 6 is fitted at the connection point between each conductive connecting piece 5 and the winding group 3. This utility model discloses a PFC board through-hole magnetic integrated inductor structure, which, through an integrated electromagnetic induction structure, uses the supporting base 1 as a base for circuit connection, enabling the inductor element to quickly achieve electrical connection with an external circuit. Therefore, this utility model discloses a PFC board through-hole magnetic integrated inductor structure that solves the technical problem of how to improve the installation convenience of integrated inductor structures.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A PFC board card direct plug magnetic integrated inductor structure, characterized in that, It includes: The support connection base (1), magnetic core structure (2), winding group (3), isolation block (4), conductive connecting piece (5), and sleeve (6) are provided; the magnetic core structure (2) is provided on the support connection base (1), and two winding groups (3) are wound around each other on both sides of the magnetic core structure (2); at least one end of the winding group (3) is provided with the isolation block (4) between it and the magnetic core structure (2); four conductive connecting pieces (5) are evenly distributed on the bottom of the support connection base (1), each conductive connecting piece (5) is connected to the winding group (3), and a sleeve (6) is provided at the connection between each conductive connecting piece (5) and the winding group (3).

2. The PFC board card direct-insert magnetic integrated inductor structure according to claim 1, characterized in that: The support connection base (1) has a support base (101), a limiting connection cavity (102), a mounting hole (103), a lead wire insertion hole (104), a hub socket (105), and auxiliary support feet (106).

3. The PFC board card direct-insert magnetic integrated inductor structure according to claim 2, characterized in that: The limiting connection cavity (102) is provided on the support base (101), and the magnetic core structure (2) is provided in the limiting connection cavity (102); a plurality of mounting holes (103) are evenly distributed around the periphery of the limiting connection cavity (102), and four lead wire insertion holes (104) are evenly distributed in the limiting connection cavity (102).

4. The PFC board card direct-insert magnetic integrated inductor structure according to claim 3, characterized in that: The four hub sockets (105) are evenly spaced and arranged on one side below the support base (101), and a number of auxiliary legs (106) are evenly distributed on the other side of the bottom of the support connecting base (1) relative to the hub sockets (105).

5. The PFC board card direct-insert magnetic integrated inductor structure according to claim 4, characterized in that: The magnetic core structure (2) has an I-shaped frame (201) and a wound core (202).

6. The PFC board through-hole magnetic integrated inductor structure according to claim 5, characterized in that: The I-shaped frame (201) has a winding core (202) on each side, and a winding group (3) is wound around each winding core (202).

7. The PFC board card direct plug magnetic integrated inductor structure according to claim 6, characterized in that: Each of the winding groups (3) is provided with a winding unit (301), a first pin (302), a second pin (303), and a pin extension (304).

8. The PFC board card direct plug magnetic integrated inductor structure according to claim 7, characterized in that: The winding unit (301) is wound around the winding core (202). The two ends of the winding unit (301) are respectively connected to the first pin (302) and the second pin (303). The first pin (302) or the second pin (303) is respectively inserted into the lead wire socket (104).

9. The PFC board card direct plug magnetic integrated inductor structure according to claim 8, characterized in that: The pin extension (304) is disposed below the support base (101), and the pin extension (304) is connected to the second pin (303).

10. The PFC board card direct plug magnetic integrated inductor structure according to claim 9, characterized in that: Each of the conductive connecting pieces (5) is correspondingly inserted into a hub socket (105), wherein one end of the two pin extensions (304) is connected to the second pin (303), and the other end of the two pin extensions (304) is connected to the conductive connecting piece (5).

Images