Search

CN-224217332-U - Eight-shaped pin-out mode heavy-current common-mode inductor

CN224217332UCN 224217332 UCN224217332 UCN 224217332UCN-224217332-U

Abstract

The utility model discloses a splayed pin-out mode heavy current common mode inductor which comprises a magnetic ring, a first coil, a second coil and a bottom plate, wherein the two sides of the first coil are respectively provided with a first pin and a second pin, the two sides of the second coil are respectively provided with a third pin and a fourth pin, the bottom plate is provided with a first plug hole matched with the first pin, the bottom plate is also provided with a second plug hole matched with the second pin, the bottom plate is also provided with a third plug hole matched with the third pin, the bottom plate is also provided with a fourth plug hole matched with the fourth pin, the first plug hole and the second plug hole are upwards inclined by 13 degrees along the center of the bottom plate, and the third plug hole and the fourth plug hole are upwards inclined by 13 degrees along the center of the bottom plate, so that the splayed pin-out mode is formed, the space is saved, the installation and welding difficulty is reduced, and the heat dissipation performance of the inductor is prevented from being possibly influenced by small pin spacing.

Inventors

  • MA KUNLIN
  • WU JINLONG

Assignees

  • 厦门伊科电子有限公司

Dates

Publication Date
20260508
Application Date
20250410

Claims (8)

  1. 1. The splayed pin-out type heavy current common mode inductor is characterized by comprising a magnetic ring (1), a first coil (2), a second coil (3) and a bottom plate (4), wherein a first pin (5) and a second pin (6) are respectively arranged on two sides of the first coil (2), a third pin (7) and a fourth pin (8) are respectively arranged on two sides of the second coil (3), a first plug hole (9) matched with the first pin (5) is arranged on the bottom plate (4), a second plug hole (10) matched with the second pin (6) is further arranged on the bottom plate (4), a third plug hole (11) matched with the third pin (7) is further arranged on the bottom plate (4), a fourth plug hole (12) matched with the fourth pin (8) is further arranged on the bottom plate (4), the first plug hole (9) and the second plug hole (10) are inclined upwards by 13 degrees along the center of the bottom plate (4), and the third plug hole (11) and the fourth plug hole (12) are inclined upwards by 13 degrees along the center of the bottom plate (4).
  2. 2. The splayed pin-out mode high-current common mode inductor according to claim 1, wherein the first coil (2) and the second coil (3) are symmetrically wound on the magnetic ring (1), and the distance between the centers of the second plug hole (10) and the fourth plug hole (12) is 18cm.
  3. 3. The splayed pin-out mode heavy-current common mode inductor according to claim 1 is characterized in that bosses (13) for supporting the magnetic ring (1) are adhered to two sides of the bottom plate (4).
  4. 4. The splayed pin-out mode high-current common mode inductor according to claim 1, wherein two sides of the bottom plate (4) are arc-shaped.
  5. 5. The splayed pin-out mode heavy-current common mode inductor according to claim 1, wherein the base plate (4) is further provided with radiating holes (14) for radiating heat, and the radiating holes (14) are uniformly distributed on the surface of the base plate (4).
  6. 6. The splayed pin-out mode heavy-current common mode inductor according to claim 1, wherein the first pin (5), the second pin (6), the third pin (7) and the fourth pin (8) are made of tin-plated copper materials so as to improve conductivity and corrosion resistance.
  7. 7. The splayed pin-out mode heavy-current common mode inductor according to claim 1 is characterized in that the magnetic ring (1) is a nanocrystalline magnetic ring (1) with higher saturation induction intensity.
  8. 8. The splayed pin-out type high-current common mode inductor according to claim 1, wherein the first coil (2) and the second coil (3) are flat wire coils.

Description

Eight-shaped pin-out mode heavy-current common-mode inductor Technical Field The utility model relates to the technical field of high-current common mode inductors, in particular to a splayed pin-out type high-current common mode inductor. Background Common mode inductors are also called common mode chokes, and are commonly used for filtering common mode electromagnetic interference signals in a switching power supply of a computer. In board design, the common mode inductor also plays a role of EMI filtering, and is used for inhibiting electromagnetic waves generated by the high-speed signal line from radiating outwards. Traditional common mode inductance adopts straight pin mode, and enameled rectangular wire structure receives the structure to influence, and inboard pin interval is little, probably can increase electromagnetic interference's risk, and automated effect is low. In order to solve the problem, a novel structure, namely a splayed pin-out type high-current common mode inductor, is developed. Disclosure of utility model The utility model aims to provide a splayed pin-out type high-current common mode inductor so as to solve the technical problems. In order to achieve the aim, the large-current common-mode inductor in a splayed pin-out mode comprises a magnetic ring, a first coil, a second coil and a bottom plate, wherein the first pin and the second pin are respectively arranged on two sides of the first coil, the third pin and the fourth pin are respectively arranged on two sides of the second coil, a first plug hole matched with the first pin is arranged on the bottom plate, a second plug hole matched with the second pin is also arranged on the bottom plate, a third plug hole matched with the third pin is also arranged on the bottom plate, a fourth plug hole matched with the fourth pin is also arranged on the bottom plate, the first plug hole and the second plug hole are inclined upwards by 13 degrees along the center of the bottom plate, and the third plug hole and the fourth plug hole are inclined upwards by 13 degrees along the center of the bottom plate. Preferably, the first coil and the second coil are symmetrically wound on the magnetic ring, and the distance between the centers of the second plug hole and the fourth plug hole is 18cm. Preferably, the two sides of the bottom plate are stuck with bosses for supporting the magnetic ring. Preferably, both sides of the bottom plate are arc-shaped. Preferably, the bottom plate is further provided with heat dissipation holes for heat dissipation, and the heat dissipation holes are uniformly distributed on the surface of the bottom plate. Preferably, the first pin, the second pin, the third pin and the fourth pin are made of tin-plated copper materials, so that conductivity and corrosion resistance are improved. Preferably, the magnetic ring is a nanocrystalline magnetic ring with higher saturation induction intensity. Preferably, the first coil and the second coil are flat wire coils. Compared with the prior art, the utility model has the beneficial effects that: The magnetic ring is fully utilized to adjust the positions of the pins from the first coil and the second coil, so that the first pin is inserted into the first plug hole, the second pin is inserted into the second plug hole, the third pin is inserted into the third plug hole, and the fourth pin is inserted into the fourth plug hole, the first plug hole and the second plug hole incline upwards by 13 degrees along the center of the bottom plate, and the first plug hole and the second plug hole incline upwards by 13 degrees along the center of the bottom plate, so that a splayed pin outlet mode is formed, the space is saved, the installation and welding difficulty is reduced, the heat dissipation performance of an inductor is not affected due to small pin distance, meanwhile, the assembly and welding are convenient, the high flat coil winding structure is automated, the limited packaging space of a customer is fully utilized, the product is packaged to be small, the current is large, the power is high, and the use power of the product is effectively improved. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Fig. 1 is a perspective view of a large current common mode inductor with an eight-shaped pin-out mode according to the present embodiment; FIG. 2 is a side view of a large current common mode inductor with an eight pin configuration according to the present embodiment; Fig. 3 is a front view of a large current common mode inductor with an eight pin configuration according