Anti-interference large-current differential mode inductor for vehicle motor

Abstract

The utility model provides an anti-interference large-current differential mode inductor for a vehicle motor, which comprises a magnetic core sleeve, the top of the magnetic core sleeve protrudes outwards to form a mounting part, a magnetic core body is placed in the magnetic core sleeve, a hard winding is wound outside the magnetic core sleeve, the mounting part is mounted at the top of the winding, and two poles of the winding are connected with a PCB (printed circuit board) and used for supporting the magnetic core sleeve; due to the fact that the magnetic core body is placed in the magnetic core sleeve, and the magnetic core sleeve hangs the top of the winding through the hanging portion with the top protruding outwards, the magnetic core body does not need to be cut or machined to be in a special shape, and after the inductor is installed, the magnetic core body can be stably fixed to the center of the winding. The utility model belongs to the technical field of inductors.

Description

Technical Field

[0001] This utility model belongs to the technical field of inductors, and particularly relates to a large current differential mode inductor for automotive motors to resist interference. Background Technology

[0002] An inductor is one of the most commonly used components in electronic circuits. Its main functions include filtering, forming resonant circuits with capacitors and resistors, and isolating AC signals. Therefore, an inductor is not only a circuit element that can store and release energy, but also plays an important role in circuits.

[0003] The structure of an inductor mainly consists of windings wrapped around a magnetic core. When current flows through the windings, a magnetic field is generated, which in turn affects the current. This interaction gives the inductor the ability to store magnetic field energy. In existing inductors, to avoid chaotic magnetic fields in the windings, the core generally has fewer facets and a single shape. Therefore, it is difficult to stably fix the magnetic core at the center of the windings. Utility Model Content

[0004] The purpose of this invention is to provide a high-current differential mode inductor for automotive motors to solve the technical problems described in the background section.

[0005] The automotive motor anti-interference high current differential mode inductor includes a magnetic core sleeve, with a mounting portion protruding from the top of the magnetic core sleeve. A magnetic core is placed inside the magnetic core sleeve, and a rigid winding is wound around the outside of the magnetic core sleeve. The mounting portion is mounted on the top of the winding, and the two poles of the winding are connected to the PCB board and used to support the magnetic core sleeve.

[0006] In some embodiments, the bottom end of the magnetic core sleeve is an opening, and the magnetic core body enters the magnetic core sleeve through the opening. A sleeve cover for supporting and clamping the magnetic core body is threaded onto the opening. The sleeve cover clamps the winding with the mounting part, and the two poles of the winding pass around the outer periphery of the sleeve cover.

[0007] In some embodiments, the peripheral wall of the magnetic core sleeve is uniformly distributed with through slots.

[0008] In some embodiments, the two poles of the winding are threadedly connected to conductive feet fixed to the PCB board.

[0009] In some embodiments, the PCB board has a recessed positioning groove, the inner wall of the positioning groove is a conductive part, and the bottom end of the conductive foot sleeve is located in the positioning groove and contacts the conductive part to conduct electricity.

[0010] In some embodiments, the bottom wall of the positioning groove is provided with a mounting hole, and the bottom end of the conductive foot sleeve is provided with a screw, which passes through the mounting hole from the bottom end of the PCB board and engages with the bottom end of the conductive foot sleeve via a thread.

[0011] In some embodiments, the magnetic core sleeve is made of pure titanium.

[0012] In some embodiments, the bottom of the cover is fitted with an auxiliary support pad for contacting the PCB board.

[0013] According to the described technical solution, the present invention has the following beneficial effects:

[0014] In this invention, since the magnetic core is placed inside the magnetic core sleeve, and the magnetic core sleeve hangs the top of the winding through the top protruding mounting part, there is no need to cut or process the magnetic core into an irregular shape. After the inductor is installed, the magnetic core can also be stably fixed at the center of the winding. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model, the following will briefly explain the drawings and reference numerals used in the description of the specific embodiments.

[0016] Figure 1 This is a front sectional view of the present invention;

[0017] Figure 2 This is a top sectional view of the present invention.

[0018] Figure label:

[0019] 1. Magnetic core sleeve; 11. Mounting part; 12. Opening; 13. Cover; 14. Through slot; 15. Auxiliary support pad; 2. Magnetic core body; 3. Winding; 31. Two poles; 4. Conductive foot sleeve; 41. Screw; 5. PCB board; 51. Positioning slot; 52. Conductive part; 53. Mounting hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0021] like Figure 1 and 2As shown, the automotive motor anti-interference high-current differential-mode inductor includes a magnetic core sleeve 1. The top of the magnetic core sleeve 1 has a protruding mounting portion 11. A magnetic core 2 is placed inside the magnetic core sleeve 1. A rigid winding 3 is wound around the outside of the magnetic core sleeve 1. The mounting portion 11 is mounted on the top of the winding 3. The two poles 31 of the winding 3 are connected to the PCB board 5 and used to support the magnetic core sleeve 1. Because the magnetic core 2 is placed inside the magnetic core sleeve 1, and the magnetic core sleeve 1 is mounted on the top of the winding 3 via the protruding mounting portion 11, there is no need to cut or process the magnetic core 2 into an irregular shape. After the inductor is installed, the magnetic core 2 can be stably fixed to the center of the winding 3.

[0022] In this embodiment, the bottom end of the magnetic core sleeve 1 is an opening 12. The magnetic core 2 enters the magnetic core sleeve 1 through the opening 12. A cover 13 for supporting and fixing the magnetic core is threaded onto the opening 12. The cover 13 clamps the winding 3 with the mounting part 11. The two poles 31 of the winding 3 pass around the cover 13 to facilitate placing the magnetic core 2 inside the magnetic core sleeve 1. At the same time, it is also convenient to install the magnetic core sleeve 1 with the magnetic core 2 inside the winding 3.

[0023] In this embodiment, the periphery of the magnetic core sleeve 1 is uniformly distributed with through slots 14 to reduce the weakening of the magnetic field by the magnetic core sleeve 1.

[0024] In this embodiment, the two poles 31 of the winding 3 are threadedly connected to conductive feet 4 fixed to the PCB board 5, so that the winding 3 can stably provide support for the entire inductor through the two poles 31 connected to the PCB board 5. In addition, the conductive feet 4 can also be easily installed on the two poles 31 of the winding 3.

[0025] In this embodiment, the PCB board 5 has a recessed positioning groove 51, the inner wall of the positioning groove 51 is a conductive part 52, and the bottom end of the conductive foot sleeve 4 is located inside the positioning groove 51 and contacts the conductive part 52 to conduct electricity. When the inductor is mounted on the PCB board 5, it can be easily aligned with the PCB board 5.

[0026] In this embodiment, the bottom wall of the positioning groove 51 is provided with a mounting hole 53, and the bottom end of the conductive foot sleeve 4 is provided with a screw 41. The screw 41 passes through the mounting hole 53 from the bottom end of the PCB board 5 and is threadedly locked to the bottom end of the conductive foot sleeve 4; so as to enable the inductor to be conveniently mounted on the PCB board 5, and at the same time, enable the two poles 31 of the winding 3 to provide more stable support for the entire inductor.

[0027] In this embodiment, the magnetic core sleeve 1 is made of pure titanium to further reduce the interference of the magnetic core sleeve 1 on the magnetic field of the magnetic core body 2.

[0028] In this embodiment, the bottom of the cover 13 is equipped with an auxiliary support pad 15 for contacting the PCB board 5, so as to reduce the stress on the two poles 31 of the winding 3.

Claims

1. A high-current differential-mode inductor for automotive motors, characterized in that: The device includes a magnetic core sleeve (1), with a mounting part (11) protruding from the top of the magnetic core sleeve (1). A magnetic core body (2) is placed inside the magnetic core sleeve (1). A rigid winding (3) is wound around the outside of the magnetic core sleeve (1). The mounting part (11) is mounted on the top of the winding (3). The two poles (31) of the winding (3) are connected to the PCB board (5) and used to support the magnetic core sleeve (1).

2. The automotive motor anti-interference large current differential mode inductor according to claim 1, characterized in that: The bottom of the magnetic core sleeve (1) is an opening (12). The magnetic core (2) enters the magnetic core sleeve (1) through the opening (12). A cover (13) for supporting and clamping the magnetic core (2) is threaded onto the opening (12). The cover (13) protrudes outward. The cover (13) clamps the winding (3) with the mounting part (11). The two poles (31) of the winding (3) pass around the outside of the cover (13).

3. The automotive motor anti-interference large current differential mode inductor according to claim 2, characterized in that: The magnetic core sleeve (1) has through slots (14) evenly distributed on its peripheral wall.

4. The automotive motor anti-interference large current differential mode inductor according to claim 3, characterized in that: The two poles (31) of the winding (3) are threadedly connected to conductive feet (4) fixed to the PCB board (5).

5. The automotive motor anti-interference large current differential mode inductor according to claim 4, characterized in that: The PCB board (5) has a recessed positioning groove (51), the inner wall of the positioning groove (51) is a conductive part (52), and the bottom end of the conductive foot sleeve (4) is located in the positioning groove (51) and contacts the conductive part (52) to conduct electricity.

6. The automotive motor anti-interference large current differential mode inductor according to claim 5, characterized in that: The bottom wall of the positioning groove (51) is provided with a mounting hole (53), and the bottom end of the conductive foot sleeve (4) is provided with a screw (41). The screw (41) passes through the mounting hole (53) from the bottom end of the PCB board (5) and is threadedly locked to the bottom end of the conductive foot sleeve (4).

7. The automotive motor anti-interference large current differential mode inductor according to claim 2, characterized in that: The magnetic core sleeve (1) is made of pure titanium.

8. The automotive motor anti-interference large current differential mode inductor according to claim 7, characterized in that: The bottom of the cover (13) is equipped with an auxiliary support pad (15) for contacting the PCB board (5).

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