CN216938898U

CN216938898U - Magnetic ring fixing device and filtering device

Info

Publication number: CN216938898U
Application number: CN202122810730.6U
Authority: CN
Inventors: 张光先; 张守会; 王俊辉; 胡勇; 李现凯; 刘洺; 炊德政
Original assignee: Aotai Electric Co ltd
Current assignee: Aotai Electric Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-07-12
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a magnetic ring fixing device and a filtering device, comprising: the base is provided with a magnetic ring limiting part and a binding belt fixing part respectively; the magnetic ring can be limited in the magnetic ring limiting part and can be fixed through a binding belt; the band fixing part is used for fixing the band. The magnetic ring is limited by the magnetic ring limiting part, and the magnetic ring is directly fixed by the binding belt, so that the structure is simple and reliable, and a cable can be directly wound on the magnetic ring for multiple turns to obtain the required inductance; the magnetic ring is suitable for the concentric connection form of a single magnetic ring or a plurality of magnetic rings.

Description

Magnetic ring fixing device and filtering device

Technical Field

The utility model relates to the technical field of electric welding machines, in particular to a magnetic ring fixing device and a filtering device.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Most of the existing magnetic rings are circular or elliptical, and the middle of the existing magnetic rings is hollow and is used for penetrating through a cable; the magnetic ring is a common anti-interference element in an electronic circuit and has a good inhibition effect on high-frequency noise; such as: in the interior of a welding machine, a positive electrode end or a negative electrode end output by the welding machine needs to be connected with a series reactor for filtering, the reactor is in a form of winding a multi-turn cable on a magnetic ring, and the output current of the welding machine is generally large and the required inductance is large, so that the welding machine generally needs 50-70mm²The cable is wound by multiple turns, which puts higher requirements on the fixation of the magnetic ring.

In the prior art, a common magnetic ring fixing mode is that a magnetic ring penetrates through a cable and is fixed by a nylon cable tie, as shown in fig. 1, the mode is suitable for occasions with small magnetic rings and single-turn coils, and the magnetic ring is required to be small in size, light in weight and hard in cable; and is not suitable for the occasions of large-scale magnetic rings.

The prior art discloses an adjustable fixing and mounting structure for a plurality of large magnetic rings, which is composed of parts such as an insulating clamping plate 2-1, a thread clamping plate 2-2, a nut 2-3, a pushing screw rod 2-4 and the like, as shown in fig. 2.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a magnetic ring fixing device and a filtering device, wherein the magnetic ring is directly fixed by a binding belt, the magnetic ring fixing device is simple and reliable in structure and convenient to assemble, and is suitable for fixing a small or large magnetic ring.

In some embodiments, the following technical scheme is adopted:

a magnetic ring fixture comprising: the base is provided with a magnetic ring limiting part and a binding belt fixing part respectively; the magnetic ring can be limited in the magnetic ring limiting part and can be fixed through a binding belt; the bandage fixing part is used for fixing the bandage.

As a further scheme, the magnetic ring limiting part comprises a groove and magnetic ring baffles arranged at two ends of the groove.

As a further aspect, the band fixing portion includes: the magnetic ring limiting device comprises a base, a magnetic ring limiting portion and a binding belt, wherein the base is provided with a first through hole, the first through hole is formed in two sides of the magnetic ring limiting portion, a fixing piece is arranged in the first through hole, and two ends of the binding belt are fixed on the base through the fixing piece.

As a further scheme, the fixing piece is a locking screw, a riveting nut or a welding nut.

As a further aspect, the band fixing portion includes: the two ends of the binding belt can respectively penetrate through the second through holes and are connected or fixed at the bottom of the base.

As a further scheme, two ends of the binding belt are connected together; or the two ends of the ribbon are respectively fixed on the connecting piece, and the connecting piece is connected with the bottom of the base.

As a further aspect, the band fixing portion includes: the first through hole is formed in one side of the magnetic ring limiting part, and the second through hole is formed in the other side of the magnetic ring limiting part; a fixing piece is arranged in the first through hole, and one end of the binding belt is connected with the base through the fixing piece; the other end of the binding belt passes through the second through hole and is fixed at the bottom of the base.

As a further scheme, the magnetic ring is a single magnetic ring or a plurality of magnetic rings fixed together in a concentric mode.

As a further scheme, the base is also provided with a mounting hole for fixing the base.

In other embodiments, the following technical solutions are adopted:

a filtering device comprises the magnetic ring fixing device.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the magnetic ring is limited by the magnetic ring limiting part, and the magnetic ring is directly fixed by the binding belt, so that the structure is simple and reliable, and a cable can be directly wound on the magnetic ring for multiple turns to obtain the required inductance; the magnetic ring is suitable for a single magnetic ring or a concentric connection mode of a plurality of magnetic rings.

(2) The magnetic ring and the base are fixed through the binding belt, and the magnetic ring and the base are connected and fixed to form the magnetic ring assembly, so that the production and later-stage installation are facilitated.

(3) The base is provided with the mounting hole, so that the base can be directly mounted in a welding machine or on other structures conveniently; the magnetic ring is basically exposed and leaked in the air after being fixed, so that the heat dissipation of the magnetic ring is facilitated.

Additional features and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic view of a prior art small magnet ring;

FIG. 2 is a schematic view of a plurality of large magnetic rings fixing structure in the prior art;

fig. 3 is a schematic structural view of a magnetic ring fixing device according to an embodiment of the present invention;

FIG. 4 is a schematic view of the magnetic ring fixing structure of FIG. 3;

FIG. 5 is a schematic view of another magnetic ring fixing device according to an embodiment of the present invention;

FIG. 6 is a schematic view of the magnetic ring fixing structure of FIG. 5;

FIGS. 7(a) - (b) are schematic views showing the connection of two ends of the binding tape;

FIG. 8 is a schematic view of the fixing structure of the two ends of the binding tape according to the embodiment of the utility model;

wherein, 2-1, the insulation clamping plate, 2-2, the thread clamping plate, 2-3, the nut and 2-4, the pushing screw rod are arranged on the base;

3-1, mounting holes, 3-2, magnetic ring baffles, 3-3, first through holes and 3-4 grooves; 4-1, magnetic ring, 4-2, ribbon, 4-3, fixing piece; 5-1, a second through hole, 6-1, a base and 6-2, an insulating support; 7-1, buckling and 7-2, welding; 8-1 supporting rod and 8-2 threaded rod.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

Example one

In one or more embodiments, a magnetic ring fixture is disclosed, comprising: the base is respectively provided with a magnetic ring limiting part and a binding belt fixing part; the magnetic ring can be limited in the magnetic ring limiting part and can be fixed through a binding belt; the band fixing part is used for fixing the band.

Specifically, referring to fig. 3, two ends of the base are symmetrically provided with base mounting holes 3-1 for mounting the base and other structures. For example, after an insulating bracket is additionally arranged through the mounting hole 3-1, the device is mounted inside a welding machine by using a screw, and the insulating bracket is used for increasing creepage distance; for example, the device may have four mounting holes 3-1, respectively located at four corners of the base, but is not limited thereto, and may have other numbers or be located at other positions.

The middle position of the bottom of the base is provided with a groove 3-4 which can form a space for fixing the binding belt and is convenient for the base and other structures to be installed and fixed; the base can be manufactured by bending a metal plate or formed by one-time stamping by using a die.

With reference to fig. 3 and 4, the magnetic ring limiting part comprises a groove 3-4 and magnetic ring baffles 3-2 arranged at two ends of the groove 3-4, when the magnetic ring is installed, the magnetic ring 4-1 is placed in the groove 3-4, two end faces of the magnetic ring are just blocked by the magnetic ring baffles 3-2, and the installation and the positioning of the magnetic ring can be realized. The magnetic ring can be a single magnetic ring, or a plurality of magnetic rings can be adhered together in a concentric mode through high-temperature-resistant glue.

In this embodiment, the material of the ribbon 4-2 may be stainless steel, or other materials that are not easily magnetized, such as high temperature resistant nylon material. The width of the ribbon 4-2 can be reasonably determined according to the number of the magnetic rings so as to realize the firm fixation of the plurality of magnetic rings.

In the embodiment, the binding belt fixing part comprises two first through holes 3-3 which are respectively arranged at two sides of the magnetic ring limiting part, fixing parts 4-3 are arranged in the first through holes 3-3, and two ends of the binding belt are fixed on the base through the fixing parts 4-3.

In particular, the fixing member 4-3 can fix the cable tie on the base, and the fixing member 4-3 can be a locking screw, a riveting nut, a welding nut or the like, or other common locking or fixing elements.

As a specific implementation mode, when assembling, firstly, fixing a plurality of magnetic rings 4-1 (the number of the magnetic rings is specifically set according to actual requirements) in a concentric mode by using high-temperature-resistant glue, placing the magnetic rings into grooves 3-4 of a base, then fastening the magnetic rings by using a binding belt 4-2, and connecting two ends of the binding belt 4-2 with the base through fixing pieces 4-3.

Example two

Specifically, referring to fig. 5 and 6, the base 6-1 has the same structure as the base in the first embodiment, the device can be installed inside a welding machine by using screws after the insulating support 6-2 is additionally installed in the installation hole 3-1, and the insulating support 6-2 is used for increasing creepage distance; for example, the device may have four mounting holes 3-1 at four corners of the base 6-1, but is not limited thereto, and may have other numbers or be disposed at other positions.

The structural form of the magnetic ring, the structural form of the ribbon and the structural form of the magnetic ring limiting part are the same as those in the first embodiment.

The structure of the present embodiment is different from the structure of the first embodiment in that the band fixing portion of the present embodiment includes: two second through holes 5-1 are respectively arranged at two sides of the magnetic ring limiting part, the second through holes 5-1 are long through holes, and two ends of the binding belt 4-2 can respectively penetrate through the second through holes 5-1 and are connected or fixed at the bottom of the base 6-1.

Specifically, with reference to fig. 7(a) - (b), after the two ends of the ribbon 4-2 pass through the long through hole, the two ends of the ribbon 4-2 are connected at the bottom end of the base 6-1, the two ends of the ribbon 4-2 can be reliably connected by means of the buckle 7-1, and the contact position of the two ends of the ribbon is welded and fixed, and fig. 7(b) shows the welding position 7-2.

Of course, after the two ends of the binding belt 4-2 pass through the long through hole, the two ends of the binding belt 4-2 are respectively fixed on the connecting pieces, and the connecting pieces are connected with the bottom of the base 6-1. Referring to fig. 8, as a specific embodiment, the connecting member may be two threaded holes 8-1 arranged in parallel, and two ends of the binding belt are respectively connected to the corresponding supporting rods 8-1; the two threaded hole supporting rods 8-1 are connected together through a threaded rod 8-2, and the two threaded hole supporting rods 8-1 are fixedly connected with the base 6-1.

Of course, only one supporting rod 8-1 with a threaded hole may be provided, or the connecting member may be another structure fixedly connected with the bottom of the base 6-1, for example, a worm and gear mechanism, a one-way ratchet structure, or the like is used; the ties can be secured to these structures.

The assembly is carried out in substantially the same way as in the first embodiment, except that the band is fixed in a different way.

EXAMPLE III

In one or more embodiments, a magnetic ring fixture is disclosed, comprising: the base is respectively provided with a magnetic ring limiting part and a binding belt fixing part; the magnetic ring 4-1 can be limited in the magnetic ring limiting part and can be fixed through a binding belt; the band fixing part is used for fixing the band.

This embodiment is different from the first or second embodiment in that the band fixing portion includes: a first through hole 3-3 arranged at one side of the magnetic ring limiting part and a second through hole 5-1 arranged at the other side of the magnetic ring limiting part; a fixing piece 4-3 is arranged in the first through hole 3-3, and one end of the binding belt is connected with the base through the fixing piece 4-3; the other end of the binding belt passes through the second through hole 5-1 and is fixed at the bottom of the base.

The specific fixing manner of the ribbon and the first through hole 3-3 and the second through hole 5-1 is the same as that of the first embodiment and the second embodiment, and detailed description is omitted.

It should be noted that the magnetic ring fixing device in the first, second and third embodiments can be applied to the interior of a welding and cutting power supply, but is not limited thereto, and can also be applied to any other places according to actual needs, which is within the protection scope of the present invention.

Example four

In one or more embodiments, a filtering device is disclosed, which adopts a magnetic ring fixing structure in the first embodiment, the second embodiment or the third embodiment, and uses a cable (which may be in a copper bar or aluminum bar form, but needs insulation treatment) to wind on a magnetic ring 4-1 to manufacture an inductance coil, and the number of the magnetic rings is increased or decreased while different turns are wound according to inductance quantity, so as to play a filtering role in a circuit.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. A magnetic ring fixing device is characterized by comprising: the base is provided with a magnetic ring limiting part and a binding belt fixing part respectively; the magnetic ring can be limited in the magnetic ring limiting part and can be fixed through a binding belt; the band fixing part is used for fixing the band.

2. A magnetic ring fixing device as claimed in claim 1, wherein said magnetic ring position-limiting portion includes a groove and magnetic ring baffles disposed at both ends of the groove.

3. A magnetic ring fixture device as claimed in claim 1, wherein said band fixture portion comprises: the magnetic ring limiting device comprises a base, a magnetic ring limiting part and a fixing piece, wherein the base is provided with a first through hole and a second through hole, the first through hole is formed in two sides of the magnetic ring limiting part, the fixing piece is arranged in the first through hole, and two ends of a binding belt are fixed on the base through the fixing piece.

4. A magnetic ring fixing device as claimed in claim 3 wherein said fixing member is a locking screw, a rivet nut or a weld nut.

5. A magnetic ring fixture as claimed in claim 1, wherein said tie fixture includes: the two ends of the binding belt can respectively penetrate through the second through holes and are connected or fixed at the bottom of the base.

6. A magnetic ring fixing device as claimed in claim 5 wherein said two ends of said tie are connected together; or the two ends of the ribbon are respectively fixed on the connecting piece, and the connecting piece is connected with the bottom of the base.

7. A magnetic ring fixture as claimed in claim 1, wherein said tie fixture includes: the first through hole is formed in one side of the magnetic ring limiting part, and the second through hole is formed in the other side of the magnetic ring limiting part; a fixing piece is arranged in the first through hole, and one end of the binding belt is connected with the base through the fixing piece; the other end of the binding belt passes through the second through hole and is fixed at the bottom of the base.

8. A magnetic ring fixture device as claimed in claim 1, wherein said magnetic ring is a single magnetic ring or a plurality of magnetic rings fixed together in a concentric manner.

9. A magnetic ring fixing device as claimed in claim 1, wherein said base is further provided with a mounting hole for fixing the base.

10. A filter arrangement, characterized by comprising a magnetic ring fixture as claimed in any one of claims 1-9.