CN216487533U

CN216487533U - Ferrite permanent magnet with composite protective layer

Info

Publication number: CN216487533U
Application number: CN202122951960.4U
Authority: CN
Inventors: 徐奎
Original assignee: Chuzhou Hengtong Magnetoelectricity Technology Co Ltd
Current assignee: Chuzhou Hengtong Magnetoelectricity Technology Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-10
Anticipated expiration: 2031-11-29

Abstract

The utility model relates to a permanent magnet technical field just discloses a ferrite permanent magnet with compound inoxidizing coating, including two permanent magnet base members, the upper end fixedly connected with connecting plate of permanent magnet base member, the upper end welding of connecting plate has the grafting piece, two the outer cartridge of grafting piece has same joint board, the interface of pegging graft is all seted up with grafting piece matching to the both ends surface of joint board, the locating hole has been seted up to the upper end lateral wall of grafting piece, the grafting piece corresponds the locating hole interpolation and is equipped with the crimping board. This application can strengthen the protection to the outside of whole permanent magnet, has guaranteed the use intensity of permanent magnet.

Description

Ferrite permanent magnet with composite protective layer

Technical Field

The application relates to the technical field of permanent magnets, in particular to a ferrite permanent magnet with a composite protective layer.

Background

The ferrite magnet is a permanent magnet mainly produced from SrO or BaO and Fe2O3 as raw materials. Compared with other permanent magnets, ferrite magnets are hard and brittle and have low magnetic energy. But it is not easy to demagnetize and corrode, and the production process is simple and inexpensive, so that the ferrite magnet has the highest yield in the entire magnet industry and is widely used in industrial production.

The surface of the existing ferrite permanent magnet is directly lack of a protection mechanism, so that the service life of the permanent magnet is influenced, the installation and connection of the two permanent magnets are complicated and inconvenient, and the rapid assembly among the permanent magnets cannot be realized.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is in order to solve the ferrite permanent magnet among the prior art and directly use its surface to lack protection machanism, influences the life of permanent magnet, and the erection joint of two permanent magnets is comparatively loaded down with trivial details inconvenient, can not realize the problem of the fast assembly between a plurality of permanent magnets, and the ferrite permanent magnet with compound inoxidizing coating that provides.

In order to achieve the purpose, the following technical scheme is adopted in the application:

a ferrite permanent magnet with a composite protective layer comprises two permanent magnet matrixes, wherein a connecting plate is fixedly connected to the upper end of each permanent magnet matrix, an inserting block is welded to the upper end of each connecting plate, the same clamping plate is inserted outside the two inserting blocks, inserting ports matched and inserted with the inserting blocks are formed in the surfaces of the two ends of each clamping plate, positioning ports are formed in the side wall of the upper end of each inserting block, and a pressing plate is inserted into the corresponding positioning ports of the inserting blocks;

the outer side of the permanent magnet matrix is adhered with a nickel-plated protective film, the outer side of the nickel-plated protective film is adhered with an epoxy resin protective layer, the outer side of the epoxy resin protective layer is adhered with a magnetic shielding sheath, and the outer side of the magnetic shielding sheath is sprayed with a ceramic protective spraying layer.

Preferably, a plurality of jacks are formed in the upper end of the plug-in block, a limiting rod is movably inserted into each jack, a plurality of limiting grooves matched with the limiting rods for plugging are formed in the upper end of the compression joint plate, the limiting grooves are formed in the upper end of the limiting rods, the limiting rods are connected with the same limiting pull plate, a plurality of pull-down springs are fixedly connected between the lower end of the limiting pull plate and the upper end of the plug-in block, and the pull-down springs are respectively sleeved outside the limiting rods.

Preferably, the lower end of the connecting plate is fixedly connected with a connecting stud, and the upper end of the permanent magnet matrix is provided with a connecting screw groove in threaded connection with the connecting stud.

Preferably, a layer of insulating pad is fixedly arranged on the lower side of the connecting plate.

Preferably, the lower end of the crimping plate is abutted against the upper end of the clamping plate.

Preferably, the epoxy resin protective layer and the magnetic shielding sheath are fixedly bonded through an insulating adhesive layer.

Compared with the prior art, the application provides a ferrite permanent magnet with compound inoxidizing coating, possesses following beneficial effect:

1. this ferrite permanent magnet with compound inoxidizing coating, through the nickel plating protection film that sets gradually in the permanent magnet base member outside, the epoxy protective layer, magnetic screen sheath and ceramic protection spraying layer, the nickel plating protection film carries out preliminary protection to the permanent magnet base member, the epoxy protective layer can carry out anticorrosive protection to whole permanent magnet base member, avoid the direct exposure air environment of permanent magnet base member to receive the influence of corrosion damage easily, the magnetic screen sheath can cut off because high frequency harmonic produces the vortex and uses the permanent magnet, further reduce the loss of permanent magnet, reach low-loss purpose, ceramic protection spraying layer can strengthen the protection to the outside of whole permanent magnet, the use strength of permanent magnet has been guaranteed.

2. This ferrite permanent magnet with composite protection layer, connecting plate through being equipped with, the connecting plate passes through connecting stud and connects the screw thread connection effect in spiral groove and makes the firm connection of connecting plate and permanent magnet base member be in the same place, the rethread interface is pegged graft with the matching of pegging graft piece and is made the joint board high-speed joint outside two pieces of pegging graft, realize the firm joint of two permanent magnet base members, rethread locating hole and the matching of crimping board are pegged graft and are made the crimping board connect in the grafting piece, make the crimping board support the upper end at the joint board, many gag levers aim at the spacing groove this moment, the spacing arm-tie of drop-down spring pull-down, the firm joint of piece and crimping board can be realized inserting in spacing pole impel the spacing inslot to spacing arm-tie, can realize the fast assembly to between a plurality of permanent magnet base members, installation effectiveness has been guaranteed.

And the part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, and this application can strengthen the protection to the outside of whole permanent magnet, has guaranteed the use intensity of permanent magnet.

Drawings

Fig. 1 is a schematic structural diagram of a ferrite permanent magnet with a composite protective layer according to the present application;

fig. 2 is a schematic cross-sectional structural view of a permanent magnet matrix of a ferrite permanent magnet with a composite protective layer according to the present application.

In the figure: 1. a permanent magnet matrix; 2. a connecting plate; 3. an insertion block; 4. a clamping and connecting plate; 5. an interface; 6. positioning the opening; 7. a pressure welding plate; 8. plating a nickel protective film; 9. an epoxy resin protective layer; 10. a magnetic shielding sheath; 11. a ceramic protective spray coating; 12. a limiting rod; 13. a limiting groove; 14. a limiting pulling plate; 15. a pull-down spring; 16. connecting a stud; 17. connecting the screw groove; 18. and an insulating adhesive layer.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present application.

Referring to fig. 1-2, a ferrite permanent magnet with a composite protective layer comprises two permanent magnet matrixes 1, wherein the upper ends of the permanent magnet matrixes 1 are fixedly connected with a connecting plate 2, the upper end of the connecting plate 2 is welded with an inserting block 3, the same clamping plate 4 is inserted in the two inserting blocks 3, the surfaces of the two ends of the clamping plate 4 are respectively provided with an inserting port 5 which is matched and inserted with the inserting block 3, the side wall of the upper end of the inserting block 3 is provided with a positioning port 6, and a pressing plate 7 is inserted in the inserting block 3 corresponding to the positioning port 6;

the outer side of the permanent magnet matrix 1 is adhered with a nickel plating protective film 8, the outer side of the nickel plating protective film 8 is adhered with an epoxy resin protective layer 9, the outer side of the epoxy resin protective layer 9 is adhered with a magnetic shielding sheath 10, and the outer side of the magnetic shielding sheath 10 is sprayed with a ceramic protection spraying layer 11.

A plurality of jacks are formed in the upper end of the plug-in block 3, the limiting rods 12 are movably inserted in the jacks, a plurality of limiting grooves 13 matched with the limiting rods 12 for plug-in connection are formed in the upper end of the crimping plate 7, the upper ends of the limiting rods 12 are fixedly connected with the same limiting pull plate 14, and a plurality of pull-down springs 15 which are respectively sleeved outside the limiting rods 12 are fixedly connected between the lower end of the limiting pull plate 14 and the upper end of the plug-in block 3.

The lower end of the connecting plate 2 is fixedly connected with a connecting stud 16, the upper end of the permanent magnet matrix 1 is provided with a connecting screw groove 17 in threaded connection with the connecting stud 16, and the connecting plate 2 and the permanent magnet matrix 1 are stably connected together through the threaded connection effect of the connecting stud 16 and the connecting screw groove 17.

A layer of insulating pad is fixedly arranged at the lower side of the connecting plate 2.

The lower extreme of crimping board 7 is contradicted in the upper end of joint plate 4 for the crimping is firm.

The epoxy resin protective layer 9 and the magnetic shield sheath 10 are fixed by adhesion through an insulating adhesive layer 18.

The working principle is that when in use, the nickel plating protective film 8, the epoxy resin protective layer 9, the magnetic shielding sheath 10 and the ceramic protective spraying layer 11 are sequentially arranged on the outer side of the permanent magnet matrix 1, the nickel plating protective film 8 primarily protects the permanent magnet matrix 1, the epoxy resin protective layer 9 can perform anticorrosion protection on the whole permanent magnet matrix 1, the permanent magnet matrix 1 is prevented from being easily affected by corrosion damage when being directly exposed to the air environment, the magnetic shielding sheath 10 can cut off eddy current generated by high-frequency harmonic wave and acts on the permanent magnet, the loss of the permanent magnet is further reduced, the low loss is achieved, the ceramic protective spraying layer 11 can strengthen and protect the outer side of the whole permanent magnet, the service strength of the permanent magnet is ensured, and through the connecting plate 2, the connecting plate 2 is firmly connected with the permanent magnet matrix 1 through the threaded connection effect of the connecting stud 16 and the connecting screw groove 17, rethread interface 5 and grafting piece 3 match grafting make 4 quick connections of joint board outside two grafting pieces 3, realize two permanent magnet base member 1's firm joint, rethread locating hole 6 and 7 match grafting of crimping board make 7 connections of crimping board in grafting piece 3, make 7 of crimping board support and prop in the upper end of joint board 4, many gag lever posts 12 aim at spacing groove 13 this moment, pull-down spring 15 pulls down spacing arm-tie 14, spacing arm-tie 14 impels gag lever post 12 in spacing groove 13 can realize the firm joint of grafting piece 3 and crimping board 7, can realize the fast assembly to between a plurality of permanent magnet base member 1, installation effectiveness has been guaranteed.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present application, and equivalent alternatives or modifications according to the technical solutions and the application concepts of the present application, which are within the technical scope of the present application.

Claims

1. The ferrite permanent magnet with the composite protective layer comprises two permanent magnet matrixes (1) and is characterized in that the upper ends of the permanent magnet matrixes (1) are fixedly connected with a connecting plate (2), the upper ends of the connecting plate (2) are welded with inserting blocks (3), the same clamping plate (4) is inserted in the two inserting blocks (3), inserting ports (5) matched and inserted with the inserting blocks (3) are formed in the surfaces of the two ends of the clamping plate (4), positioning ports (6) are formed in the side wall of the upper end of each inserting block (3), and a pressing plate (7) is inserted in the corresponding positioning ports (6) of each inserting block (3);

the outside of permanent magnet base member (1) is adhered with nickel plating protection film (8), the outside of nickel plating protection film (8) bonds has epoxy protective layer (9), the outside of epoxy protective layer (9) bonds has magnetism shielding sheath (10), the outside spraying of magnetism shielding sheath (10) has ceramic protection spraying layer (11).

2. The ferrite permanent magnet with the composite protective layer is characterized in that a plurality of jacks are formed in the upper end of the insertion block (3), limiting rods (12) are movably inserted in the jacks, a plurality of limiting grooves (13) matched and inserted with the limiting rods (12) are formed in the upper end of the compression joint plate (7), a plurality of limiting pull plates (14) are fixedly connected to the upper ends of the limiting rods (12), and a plurality of pull-down springs (15) are fixedly connected between the lower ends of the limiting pull plates (14) and the upper end of the insertion block (3) and are respectively sleeved outside the limiting rods (12).

3. The ferrite permanent magnet with the composite protective layer is characterized in that a connecting stud (16) is fixedly connected to the lower end of the connecting plate (2), and a connecting screw groove (17) in threaded connection with the connecting stud (16) is formed in the upper end of the permanent magnet base body (1).

4. A ferrite permanent magnet with composite shielding layer according to claim 1 characterized in that the underside of the connection plate (2) is fixedly provided with a layer of insulating mat.

5. A ferrite permanent magnet with composite shielding layer according to claim 1 characterized in that the lower end of the crimping plate (7) abuts against the upper end of the clamping plate (4).

6. The ferrite permanent magnet with composite protective layer according to claim 1 is characterized in that the epoxy resin protective layer (9) and the magnetic shielding sheath (10) are fixed by adhesion through an insulating adhesive layer (18).