Multi-winding flat wire common mode inductor

Abstract

The utility model relates to the related technical field of common mode inductors, in particular to a multi-winding flat wire common mode inductor which comprises a magnetic core, a partition plate is installed on the surface of the inner side of the magnetic core, a bottom plate is installed on the surface of one end of the magnetic core, and a protection mechanism is arranged on the surface of the upper portion of the bottom plate. According to the multi-winding flat wire common-mode inductor, before the common-mode inductor is used, one side of the lower portion of a protective cover is aligned and placed into a mounting groove, one end of a fixing block on the side is clamped into a fixing groove on the side, then the other side of the protective cover is placed downwards along the mounting groove, the two fixing blocks on the side are pulled by hands to enable a spring to stretch, and the protective cover is fixed to the mounting groove. The fixing block crosses the surface of the bottom plate and slides downwards along the side face of the bottom plate until one end of the fixing block is aligned with the fixing groove, at the moment, the hand is released, one end of the fixing block enters the fixing groove under the action of the spring to fix the protective cover, and the protective cover can protect two sets of flat wire windings distributed at the two ends of the magnetic core.

Description

Technical Field

[0001] This utility model relates to the technical field of common mode inductors, and in particular to a multi-winding flat wire common mode inductor. Background Technology

[0002] Common-mode inductors, also known as common-mode chokes, are commonly used in computer switching power supplies to filter common-mode electromagnetic interference signals. In circuit board design, common-mode inductors also serve as EMI filters, suppressing the outward radiation of electromagnetic waves generated by high-speed signal lines. Common-mode inductors are generally used in various switching power supplies, motor drives, network communications, and audio systems, with a particular need for multi-winding flat wire common-mode inductors.

[0003] However, the windings of existing multi-winding flat wire common-mode inductors do not have specific protection. Accidental contact or other situations may cause the surface insulation layer of the copper wire to crack, which can lead to a short circuit, burn out the inductor, and increase the probability of personal injury or property damage. Utility Model Content

[0004] The purpose of this invention is to provide a multi-winding flat wire common-mode inductor to solve the problem mentioned in the background art that the windings of existing multi-winding flat wire common-mode inductors do not have specific protection, and the surface insulation layer of the copper wire may be broken due to accidental contact or other situations, which may lead to short circuit, inductor burnout, and increase the probability of personal injury or property damage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-winding flat wire common mode inductor, comprising a magnetic core, a partition plate installed on the inner surface of the magnetic core, a base plate installed on one end surface of the magnetic core, a protective mechanism provided on the upper surface of the base plate, a flat wire winding wrapped around the outer surface of the magnetic core, a back plate fixedly connected to one side surface of the base plate, and a mounting mechanism provided on the lower surface of the base plate;

[0006] The protective mechanism includes a protective cover, a venting grille, a mounting groove, a limiting cylinder, a fixing groove, a fixing block, a sliding groove, and a spring. The protective cover is installed on the upper surface of the base plate. The outer surface of the protective cover has a venting grille. The upper surface of the base plate has a mounting groove. The outer surface of the protective cover is fixedly connected to a limiting cylinder. The outer surface of the base plate has a fixing groove. A fixing block is installed on one side surface of the base plate. A sliding groove is formed on one side surface of the fixing block. A spring is fixedly connected to the inner surface of the sliding groove.

[0007] Preferably, the inner wall dimension of the mounting groove matches the outer wall dimension of one end of the protective cover, and the outer wall dimension of the limiting cylinder matches the inner wall dimension of the sliding groove.

[0008] Preferably, the limiting cylinder is symmetrically arranged with respect to the central axis of the base plate, and the fixing block is fixedly connected to the base plate by a spring.

[0009] Preferably, the mounting mechanism includes a mounting hole, a slot, a limiting slot, a pin, and a locking block. A mounting hole is provided on one side surface of the base plate, a slot is provided on one side surface of the base plate, a limiting slot is provided on the inner surface of the slot, a pin is mounted on the inner surface of the mounting hole, and a locking block is fixedly connected to the outer surface of the pin.

[0010] Preferably, the mounting holes are symmetrically arranged with respect to the central axis of the base plate, and the slots are symmetrically arranged with respect to the central axis of the base plate.

[0011] Preferably, the card blocks are arranged symmetrically about the central axis of the pins, and the outer wall dimensions of the card blocks match the inner wall dimensions of the card slots.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This multi-winding flat wire common mode inductor, through the arrangement of a protective cover, a venting grid hole, a mounting groove, a limiting cylinder, a fixing groove, a fixing block, a sliding groove, and a spring, allows for the following steps before using the common mode inductor: First, align one side of the protective cover with the mounting groove. Then, insert one end of the fixing block on this side into the fixing groove. Next, pull the two fixing blocks on this side to extend the springs. This allows the fixing blocks to slide down the side of the base plate until one end of the fixing block aligns with the fixing groove. At this point, release the hand, and one end of the fixing block, under the action of the spring, enters the fixing groove to fix the protective cover. In this way, the protective cover can protect the two sets of flat wire windings distributed at both ends of the magnetic core. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the mounting groove and the sliding groove used in this utility model.

[0015] Figure 3 This is a schematic diagram of the installation mechanism structure of this utility model;

[0016] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0017] In the diagram: 1. Magnetic core; 2. Partition plate; 3. Base plate; 4. Protective mechanism; 401. Protective cover; 402. Ventilation grille hole; 403. Mounting groove; 404. Limiting cylinder; 405. Fixing groove; 406. Fixing block; 407. Slide groove; 408. Spring; 5. Flat wire winding; 6. Back plate; 7. Mounting mechanism; 701. Mounting hole; 702. Slot; 703. Limiting groove; 704. Pin; 705. Locking block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a multi-winding flat wire common mode inductor, including a magnetic core 1, a partition 2 installed on the inner surface of the magnetic core 1, a base plate 3 installed on one end surface of the magnetic core 1, a protective mechanism 4 provided on the upper surface of the base plate 3, a flat wire winding 5 wrapped around the outer surface of the magnetic core 1, a back plate 6 fixedly connected to one side surface of the base plate 3, and an installation mechanism 7 provided on the lower surface of the base plate 3;

[0020] The protective mechanism 4 includes a protective cover 401, a vent grille 402, a mounting groove 403, a limiting cylinder 404, a fixing groove 405, a fixing block 406, a sliding groove 407, and a spring 408. The protective cover 401 is mounted on the upper surface of the base plate 3. A vent grille 402 is formed on the outer surface of the protective cover 401. A mounting groove 403 is formed on the upper surface of the base plate 3. A limiting cylinder 404 is fixedly connected to the outer surface of the protective cover 401. A fixing groove 405 is formed on the outer surface of the base plate 3. A fixing block 406 is mounted on one side of the base plate 3. A sliding groove 407 is formed on one side of the fixing block 406. A spring 408 is fixedly connected to the inner surface of the sliding groove 407. The protective cover 401, vent grille 402, mounting groove 403, limiting cylinder 404, fixing groove 405, and fixing block... The arrangement of 406, 407, and 408 is as follows: Before using the common mode inductor, first align the lower side of the protective cover 401 into the mounting groove 403. At this time, fix one end of the fixing block 406 on this side into the fixing groove 405 on this side. Then, insert the other side of the protective cover 401 downward along the mounting groove 403. Then, pull the two fixing blocks 406 on this side to extend the spring 408. In this way, the fixing block 406 slides down along its side across the surface of the base plate 3 until one end of the fixing block 406 aligns with the fixing groove 405. At this time, release the hand, and one end of the fixing block 406 enters the fixing groove 405 under the action of the spring 408 to fix the protective cover 401. In this way, the protective cover 401 can protect the two sets of flat wire windings 5 ​​distributed at both ends of the magnetic core 1.

[0021] Furthermore, the inner wall dimension of the mounting groove 403 matches the outer wall dimension of one end of the protective cover 401, and the outer wall dimension of the limiting cylinder 404 matches the inner wall dimension of the sliding groove 407. The protective cover 401 is placed at one end through the mounting groove 403.

[0022] Furthermore, the limiting cylinder 404 is symmetrically arranged with respect to the central axis of the base plate 3, and the fixing block 406 is fixedly connected to the base plate 3 by the spring 408. The setting of the limiting cylinder 404 ensures that the spring 408 can only move along the direction of the limiting cylinder 404 during the extension and retraction process.

[0023] Furthermore, the mounting mechanism 7 includes a mounting hole 701, a slot 702, a limiting groove 703, a pin 704, and a locking block 705. A mounting hole 701 is provided on one side surface of the base plate 3, and a slot 702 is provided on another side surface of the base plate 3. A limiting groove 703 is provided on the inner surface of the slot 702. A pin 704 is mounted on the inner surface of the mounting hole 701, and a locking block 705 is fixedly connected to the outer surface of the pin 704. Through the arrangement of the mounting hole 701, slot 702, limiting groove 703, pin 704, and locking block 705, if the pin 704 is accidentally damaged and becomes distorted, the pin 704 is first rotated to align the locking block 705 with the slot 702. At this point, the pin 704 can be removed by sliding it downwards, allowing for replacement of the pin 704 without replacing the entire base plate 3, thus reducing costs.

[0024] Furthermore, the mounting holes 701 are symmetrically arranged with respect to the central axis of the base plate 3, and the slots 702 are symmetrically arranged with respect to the central axis of the base plate 3. The mounting holes 701 are used to accommodate the pins 704.

[0025] Furthermore, the card block 705 is symmetrically arranged with respect to the central axis of the pin 704. The outer wall size of the card block 705 matches the inner wall size of the card slot 702. By setting the pin 704, the card block 705 can be offset from the card slot 702 and the pin 704 can be fixed by rotating the pin 704.

[0026] Working principle: Before using the common mode inductor, first align the lower side of the protective cover 401 into the mounting slot 403. At this time, lock one end of the fixing block 406 on this side into the fixing slot 405 on this side. Then, push the other side of the protective cover 401 down along the mounting slot 403. Then, pull the two fixing blocks 406 on this side to extend the spring 408. In this way, the fixing block 406 slides down the side of the base plate 3 until one end of the fixing block 406 aligns with the fixing slot 405. At this point, release your hand, and one end of the fixing block 406 will enter the fixing groove 405 under the action of the spring 408 to fix the protective cover 401. In this way, the protective cover 401 can protect the two sets of flat wire windings 5 ​​distributed at both ends of the magnetic core 1. If the pin 704 is accidentally damaged and becomes distorted, first rotate the pin 704 so that the locking block 705 aligns with the locking groove 702. Then slide the pin 704 down to remove the pin 704 and replace the pin 704 without replacing the entire base plate 3, which can reduce costs.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-winding flat wire common-mode inductor, comprising a magnetic core (1), characterized in that: A partition plate (2) is installed on the inner surface of the magnetic core (1), a base plate (3) is installed on one end surface of the magnetic core (1), a protective mechanism (4) is provided on the upper surface of the base plate (3), a flat wire winding (5) is wrapped on the outer surface of the magnetic core (1), a back plate (6) is fixedly connected to one side surface of the base plate (3), and an installation mechanism (7) is provided on the lower surface of the base plate (3). The protective mechanism (4) includes a protective cover (401), a ventilation grille (402), a mounting groove (403), a limiting cylinder (404), a fixing groove (405), a fixing block (406), a sliding groove (407), and a spring (408). The protective cover (401) is installed on the upper surface of the base plate (3). The ventilation grille (402) is opened on the outer surface of the protective cover (401). The mounting groove (403) is opened on the upper surface of the base plate (3). The limiting cylinder (404) is fixedly connected to the outer surface of the protective cover (401). The fixing groove (405) is opened on the outer surface of the base plate (3). The fixing block (406) is installed on one side surface of the base plate (3). The sliding groove (407) is opened on one side surface of the fixing block (406). The spring (408) is fixedly connected to the inner surface of the sliding groove (407).

2. The multi-winding flat wire common-mode inductor according to claim 1, characterized in that: The inner wall dimension of the mounting groove (403) matches the outer wall dimension of one end of the protective cover (401), and the outer wall dimension of the limiting cylinder (404) matches the inner wall dimension of the sliding groove (407).

3. The multi-winding flat wire common-mode inductor according to claim 1, characterized in that: The limiting cylinder (404) is symmetrically arranged with respect to the central axis of the base plate (3), and the fixing block (406) is fixedly connected to the base plate (3) by a spring (408).

4. The multi-winding flat wire common-mode inductor according to claim 1, characterized in that: The mounting mechanism (7) includes a mounting hole (701), a slot (702), a limiting groove (703), a pin (704), and a locking block (705). The mounting hole (701) is provided on one side surface of the base plate (3), the slot (702) is provided on one side surface of the base plate (3), the limiting groove (703) is provided on the inner surface of the slot (702), the pin (704) is installed on the inner surface of the mounting hole (701), and the locking block (705) is fixedly connected to the outer surface of the pin (704).

5. A multi-winding flat wire common-mode inductor according to claim 4, characterized in that: The mounting holes (701) are symmetrically arranged with respect to the central axis of the base plate (3), and the slots (702) are symmetrically arranged with respect to the central axis of the base plate (3).

6. A multi-winding flat wire common-mode inductor according to claim 4, characterized in that: The card block (705) is symmetrically arranged with respect to the central axis of the pin (704), and the outer wall size of the card block (705) matches the inner wall size of the card slot (702).

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