CN209993425U

CN209993425U - Prevent coil short circuit's coil inductance magnetic ring for PCB

Info

Publication number: CN209993425U
Application number: CN201920625134.0U
Authority: CN
Inventors: 邓志忠
Original assignee: Huai'an Hengyi Electronic Co Ltd
Current assignee: Huai'an Hengyi Electronic Co Ltd
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-01-24
Anticipated expiration: 2029-05-05

Abstract

The utility model discloses a prevent coil inductance magnetic ring for PCB of coil short circuit, including the magnetic ring, be provided with the spiral insulation board on one side outer wall of magnetic ring, and be close to one side position department of spiral insulation board on one side outer wall of magnetic ring around being equipped with the coil, two spouts, two have been seted up to the symmetry on the outer wall of magnetic ring the equal sliding connection in inside of spout has a slider, two be provided with overcoat and endotheca on one side outer wall of slider respectively. This prevent coil inductance magnetic ring for PCB of coil short circuit, through spiral insulation board, endotheca and overcoat can fully be isolated with the adjacent enameled wire of coil on the magnetic ring, avoid causing the problem of enameled wire friction extrusion when the coil twines, guarantee the complete of outer insulating layer structure of coil, avoid sending the problem of coil short circuit, in addition, can effectual buffering coil inductance magnetic ring vibration power on level and vertical direction through spring and rubber pad in the base to reduce the fixed stability of coil inductance magnetic ring.

Description

Prevent coil short circuit's coil inductance magnetic ring for PCB

Technical Field

The utility model relates to a magnetic ring technical field specifically is a prevent coil short circuit's coil inductance magnetic ring for PCB.

Background

The magnetic ring is a ring-shaped magnetizer, is a common anti-interference element in an electronic circuit, and has good inhibition effect on high-frequency noise.

Coil inductance magnetic ring on the existing market is glossy annular magnet mostly, cause adjacent enameled wire friction extrusion on the coil easily when the coil winding is on the magnetic ring, damage the insulating ability of enameled wire easily, thereby cause the problem of coil short circuit, in addition, current coil inductance magnetic ring is mostly through pin welding on the PCB board, coil weight on magnetic ring and the magnetic ring is heavier, the holding power through the pin only is difficult to guarantee the stability of inductance work, incline easily when meetting the vibration, the problem of rupture even.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent coil short circuit's coil inductance magnetic ring for PCB to propose current coil inductance magnetic ring and cause coil friction to produce the short circuit easily and the magnetic ring receives the unstable problem of vibration support in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prevent coil short circuit's coil inductance magnetic ring for PCB, includes the magnetic ring, be provided with the spiral insulation board on one side outer wall of magnetic ring, and the position department of being close to one side position of spiral insulation board is around being equipped with the coil on one side outer wall of magnetic ring, two spouts have been seted up to the symmetry on the outer wall of magnetic ring, two equal sliding connection in inside of spout has a slider, two be provided with overcoat and endotheca on the outer wall of one side of slider respectively, the overcoat is located one side of endotheca, and is close to on one side inner wall of overcoat and is provided with first arch between coil and the spiral insulation board, it is provided with the second arch to be close to coil and spiral insulation board on one side outer wall of endotheca, the one end of coil is provided with the lead wire, be.

Preferably, an inner cavity is formed in the outer wall of one side, far away from the magnetic ring, of the base, and a rubber pad is embedded into the inner wall of one side of the inner cavity.

Preferably, a spring is arranged in the inner cavity, a clamping seat is arranged at one end of the spring, and a groove is formed in the outer wall of one side, far away from the spring, of the clamping seat.

Preferably, a supporting leg is arranged at a position, close to one side of the clamping seat, in the inner cavity, a clamping ring is arranged on the outer wall of one side of the supporting leg, and the groove corresponds to the clamping ring in shape.

Preferably, one end of the lead wire, which is far away from the coil, is provided with a pin, and the outer wall of the outer sleeve is wrapped with a protective film.

Preferably, the number of the inner cavities is four, and the four inner cavities are symmetrically arranged on the outer wall of one side of the base.

Compared with the prior art, the beneficial effects of the utility model are that: this prevent coil inductance magnetic ring for PCB of coil short circuit, through the spiral insulation board, endotheca and overcoat can be fully isolated with the adjacent enameled wire of coil on the magnetic ring, avoid causing the problem of enameled wire friction extrusion when the coil twines, guarantee the complete of outer insulating layer structure of coil, avoid sending the problem of coil short circuit, in addition, can effectual buffering coil inductance magnetic ring vibration power on level and vertical direction through spring and rubber pad in the base, thereby reduce the fixed stability of coil inductance magnetic ring, still effectual rocking that reduces the magnetic ring when having guaranteed pin and PCB board connection stability, guarantee the stability of coil inductance magnetic ring work.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a front view of the inner chamber of the present invention;

in the figure: 1. a coil; 2. a spiral insulating plate; 3. a first protrusion; 4. a chute; 5. a slider; 6. a jacket; 7. a magnetic ring; 8. an inner sleeve; 9. a second protrusion; 10. a lead wire; 11. a base; 12. supporting legs; 13. a pin; 14. a support bar; 15. a protective film; 16. a snap ring; 17. a spring; 18. an inner cavity; 19. a card holder; 20. a rubber pad; 21. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a coil inductance magnetic ring for a PCB for preventing a coil short circuit comprises a coil 1, a spiral insulating plate 2, a first protrusion 3, a sliding groove 4, a sliding block 5, an outer sleeve 6, a magnetic ring 7, an inner sleeve 8, a second protrusion 9, a lead wire 10, a base 11, supporting legs 12, pins 13, a supporting rod 14, a protective film 15, a clamping ring 16, a spring 17, an inner cavity 18, a clamping seat 19, a rubber pad 20 and a groove 21, wherein the spiral insulating plate 2 is arranged on the outer wall of one side of the magnetic ring 7, the position, close to one side of the spiral insulating plate 2, of the outer wall of one side of the magnetic ring 7 is wound with the coil 1, the outer wall of the magnetic ring 7 is symmetrically provided with two sliding grooves 4, the sliding blocks 5 are connected inside the two sliding grooves 4 in a sliding manner, the outer sleeve 6 and the inner sleeve 8 are respectively arranged on the outer wall of one side of the two sliding blocks 5, the outer, a second bulge 9 is arranged on the outer wall of one side of the inner sleeve 8, which is close to the coil 1 and the spiral insulating plate 2, a lead wire 10 is arranged at one end of the coil 1, a support rod 14 is arranged on the outer wall of one side of the outer sleeve 6, and a base 11 is arranged at one end of the support rod 14, which is far away from the outer sleeve 6.

Furthermore, an inner cavity 18 is formed in the outer wall of one side, far away from the magnetic ring 7, of the base 11, and a rubber pad 20 is embedded in the inner wall of one side of the inner cavity 18, so that longitudinal vibration of the base 11 can be buffered conveniently.

Furthermore, a spring 17 is arranged in the inner cavity 18, a clamping seat 19 is arranged at one end of the spring 17, and a groove 21 is formed in the outer wall of the clamping seat 19, which is far away from the spring 17, so that the snap ring 16 can be clamped conveniently.

Furthermore, a supporting leg 12 is arranged at a position on one side of the inner cavity 18 close to the clamping seat 19, a clamping ring 16 is arranged on the outer wall of one side of the supporting leg 12, and the groove 21 corresponds to the clamping ring 16 in shape, so that the stability of fixing of the supporting leg 12 is ensured.

Furthermore, a pin 13 is arranged at one end of the lead wire 10, which is far away from the coil 1, and a protective film 15 is wrapped on the outer wall of the outer sleeve 6, so that the insulating protection effect is achieved.

Furthermore, the number of the inner cavities 18 is four, and the four inner cavities 18 are symmetrically arranged on the outer wall of one side of the base 11, so that the base 11 is ensured to be fixedly installed.

The working principle is as follows: when the coil is used, the coil 1 is spirally wound on the magnetic ring 7, when the coil is wound, the adjacent enameled wires on the coil 1 are isolated through the spiral insulating plate 2, the inner sleeve 8 slides into the inner central position of the magnetic ring 7 through the chute 4 and the slide block 5, the second bulge 9 on the inner sleeve 8 is extruded at the joint position of the spiral insulating plate 2 and the coil 1, the outer sleeve 6 slides on the outer ring of the magnetic ring 7 through the chute 4 and the slide block 5, the first bulge 3 on the outer sleeve 6 is extruded at the joint position of the spiral insulating plate 2 and the coil 1, the independence of the adjacent enameled wires of the coil 1 is fully ensured, the lead 10 at one end of the coil 1 penetrates through the base 11 and then is welded with the pin 13, the support rod 14 is welded on the base 11, the support leg 12 is inserted into the inner cavity 18 of the base 11, in the inserting process, the clamp ring 16 on the support leg 12 extrudes, the spring 17 compresses, and the snap ring 16 continues to move until the snap ring 16 is clamped in the groove 21 of the clamping seat 19, so that the supporting leg 12 is installed, the supporting leg 12 and the pin 13 are both welded on the PCB, when the equipment where the PCB is located vibrates, the supporting leg 12 transmits the vibration to the base 11, the spring 17 and the rubber pad 20 in the inner cavity 18 can buffer transverse and longitudinal vibration force, the shaking degree of the base 11 is reduced, and the working stability of the coil inductance magnetic ring is guaranteed.

It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a prevent coil short circuit's coil inductance magnetic ring for PCB, includes magnetic ring (7), its characterized in that: a spiral insulating plate (2) is arranged on the outer wall of one side of the magnetic ring (7), a coil (1) is wound at a position, close to the spiral insulating plate (2), on the outer wall of one side of the magnetic ring (7), two sliding grooves (4) are symmetrically formed in the outer wall of the magnetic ring (7), sliding blocks (5) are connected to the inner portions of the two sliding grooves (4) in a sliding mode, an outer sleeve (6) and an inner sleeve (8) are arranged on the outer wall of one side of each sliding block (5) respectively, the outer sleeve (6) is located on one side of the inner sleeve (8), a first bulge (3) is arranged on the inner wall of one side of the outer sleeve (6) and close to the coil (1) and between the spiral insulating plate (2), a second bulge (9) is arranged on the outer wall of one side of the inner sleeve (8) and close to the coil (1) and the spiral insulating plate, the supporting rod (14) is arranged on the outer wall of one side of the outer sleeve (6), and a base (11) is arranged at one end, far away from the outer sleeve (6), of the supporting rod (14).

2. The coil inductance magnet ring for the PCB for preventing the coil short circuit as claimed in claim 1, wherein: an inner cavity (18) is formed in the outer wall of one side, far away from the magnetic ring (7), of the base (11), and a rubber pad (20) is embedded into the inner wall of one side of the inner cavity (18).

3. The coil inductance magnet ring for the PCB for preventing the coil short circuit as claimed in claim 2, wherein: the spring (17) is arranged in the inner cavity (18), a clamping seat (19) is arranged at one end of the spring (17), and a groove (21) is formed in the outer wall of one side, far away from the spring (17), of the clamping seat (19).

4. The coil inductance magnet ring for the PCB for preventing the coil short circuit as claimed in claim 3, wherein: the supporting legs (12) are arranged at the positions, close to one side of the clamping seat (19), in the inner cavity (18), clamping rings (16) are arranged on the outer walls of one sides of the supporting legs (12), and the grooves (21) correspond to the clamping rings (16) in shape.

5. The coil inductance magnet ring for the PCB for preventing the coil short circuit as claimed in claim 1, wherein: and one end of the lead (10) far away from the coil (1) is provided with a pin (13), and the outer wall of the outer sleeve (6) is wrapped with a protective film (15).

6. The coil inductance magnet ring for the PCB for preventing the coil short circuit as claimed in claim 2, wherein: the number of the inner cavities (18) is four, and the four inner cavities (18) are symmetrically arranged on the outer wall of one side of the base (11).