Nanocrystal magnetic core

Abstract

The utility model discloses a nanocrystalline magnetic core, and aims to provide a nanocrystalline magnetic core which is good in sealing performance and capable of meeting requirements under a vibration test. The magnetic core comprises a cover body and a shell, the cover body is welded on the shell, an accommodating cavity is arranged between the cover body and the shell, a magnetic core is arranged in the accommodating cavity, and a glue layer is arranged between the accommodating cavity and the magnetic core. The magnetic core is applied to the technical field of magnetic cores.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of magnetic core, especially a nanocrystalline magnetic core. BACKGROUND

[0002] In the application environment of new energy vehicles, the bonding mode of the traditional magnetic core shell cannot meet the sealing performance required. The new energy vehicles usually require oil sealing, if the magnetic core shell is bonded by silica gel, the engine oil will react with the bonded silica gel, so this method is not allowed to use, and if the magnetic core shell is closed by a buckle, the engine oil can penetrate into the inside of the magnetic core shell and react with the bonded silica gel, causing adverse consequences, and in the application environment of new energy vehicles, the product needs to be tested for vibration, and no matter the bonding mode of the glue or the closing mode of the buckle, there is a probability of splashing of debris during the vibration test. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problem of overcoming the deficiency of the prior art and provides a nanocrystalline magnetic core with good sealing performance and meeting the requirements under vibration test.

[0004] The utility model adopts the technical scheme: the utility model discloses a cover and a shell, the cover is welded on the shell, the cover is provided with a containing cavity with the shell, the containing cavity is provided with a magnetic core, and the containing cavity is provided with a glue layer with the magnetic core.

[0005] Further, the shell has a limiting block extending outward, the limiting block is located in the containing cavity, and the magnetic core is sleeved on the limiting block.

[0006] Further, the shell and the limiting block are integrally formed.

[0007] Further, the shell is a plastic-coated shell.

[0008] Further, the cover and the shell are provided with a foolproof structure.

[0009] Further, the foolproof structure includes a foolproof bump and a foolproof groove, the foolproof bump and the foolproof groove are respectively arranged on the cover and the limiting block, and the foolproof bump and the foolproof groove are correspondingly arranged.

[0010] Further, the glue layer includes a plurality of first glue layers and a plurality of second glue layers, the plurality of first glue layers are located between the upper end face of the magnetic core and the containing cavity, and the plurality of second glue layers are located between the lower end face of the magnetic core and the containing cavity.

[0011] Further, the cover is ultrasonically welded on the shell.

[0012] Further, the cover body and the shell are both hollow structures.

[0013] Further, the magnetic core is a ring structure.

[0014] The utility model discloses the beneficial effect is:

[0015] Since the utility model realizes the connection between the cover body and the shell through the welding mode, and the magnetic core is adhered in the accommodating cavity through the adhesive layer, the utility model has good sealing performance, can meet the demand of protecting the magnetic core, can avoid the reaction of the engine oil and the glue, meet the demand of the oil circuit sealing under the application condition of the new energy automobile, can avoid the splashing of the debris that appears with probability in the vibration test, ensure the safety regulations, meet the demand of the vibration test under the application condition of the new energy automobile, so that the utility model has the advantages of good sealing performance and meeting the demand under the vibration test. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creative labor.

[0017] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Fig. 2 It is the exploded schematic diagram of the utility model;

[0019] Fig. 3 It is the three-dimensional structure schematic diagram of the cover body of the utility model.

[0020] The following is the sign of the drawing:

[0021] 1, cover body;2, shell;3, accommodating cavity;4, foolproof boss;5, magnetic core;6, adhesive layer;7, limiting block;9, first adhesive layer;10, second adhesive layer;14, foolproof groove.

[0022] The realization of the utility model, functional characteristics and advantages will be further explained by combining with the embodiment and referring to the drawings. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0024] It should be noted that all directional indications, such as up, down, left, right, front, back, clockwise, counterclockwise, etc., in the embodiments of the present utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, the description of "first", "second", etc. in the present utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0026] As shown in Figs. 1 to 3 In the present embodiment, the present utility model comprises a cover body 1 and a shell 2, the cover body 1 is welded on the shell 2, a containing cavity 3 is arranged between the cover body 1 and the shell 2, a magnetic core 5 is arranged in the containing cavity 3, and a glue layer 6 is arranged between the containing cavity 3 and the magnetic core 5.

[0027] Compared with the prior art, in the present utility model, the magnetic core 5 is adhered in the containing cavity 3 through the glue layer 6, which avoids excessive shaking of the magnetic core 5 in the containing cavity 3, so as to have better stability; the connection between the cover body 1 and the shell 2 is realized by welding, so that the cover body 1 and the shell 2 can protect the magnetic core 5, thereby improving the reliability of the magnetic core work, prolonging the service life of the magnetic core, having better sealing property, avoiding chemical reaction between engine oil and the glue adhering the magnetic core 5, meeting the demand of oil circuit sealing and vibration test of new energy vehicles, so that the present utility model has the advantages of good sealing property and meeting the demand under vibration test.

[0028] In some embodiments, the shell 2 has an outwardly extending limiting block 7 located in the accommodating cavity 3, and the magnetic core 5 is sleeved on the limiting block 7; the shell 2 is integrally formed with the limiting block 7; the shell 2 is a plastic-coated shell; the cover 1 and the shell 2 are provided with fool-proof structures; the fool-proof structures include fool-proof blocks 4 and fool-proof grooves 14, which are respectively arranged on the cover 1 and the limiting block 7 and correspondingly arranged; the magnetic core 5 has a ring structure. Specifically, the magnetic core 5 has a ring structure similar to a racetrack and is sleeved on the limiting block 7 during installation to reduce the shaking of the magnetic core 5 through the limiting action of the limiting block 7; in addition, through the corresponding arrangement of the fool-proof blocks 4 and the fool-proof grooves 14 during installation, the shell 2 and the cover 1 can be prevented from being installed in the wrong way when being closed, have a unified installation direction, the appearance of the magnetic core 5 has more consistency, the installation mode of the magnetic core 5 can be quickly confirmed when being installed on the equipment, the installation difficulty of the human or machine is reduced, errors are reduced, and the installation man-hours are reduced.

[0029] It is worth mentioning that by arranging the magnetic core 5 in a ring structure similar to a racetrack, the electromagnetic interference can be gradually reduced to avoid signal interference and ensure the normal use of the equipment; the magnetic core 5 has a high saturation magnetization intensity, can maintain a large magnetization under a high magnetic field, has a low demagnetization rate, and has the advantages of small volume, convenient installation, stable performance, and easy integration.

[0030] In some embodiments, the adhesive layer 6 includes a plurality of first adhesive layers 9 and a plurality of second adhesive layers 10, the plurality of first adhesive layers 9 are located between the upper end face of the magnetic core 5 and the accommodating cavity 3, and the plurality of second adhesive layers 10 are located between the lower end face of the magnetic core 5 and the accommodating cavity 3.

[0031] In some embodiments, the cover 1 is ultrasonically welded on the shell 2; the cover 1 and the shell 2 are both hollow structures. The cover 1 can be engraved with brand logos and magnetic core signal technical requirements to facilitate recording and identification. Specifically, the cover 1 is ultrasonically welded on the shell 2, and the weld seam is selected to be a bevel lap weld seam, which is suitable for welding parts in a circular or elliptical shape and can achieve high-strength sealing to have very high connection strength and reliability after welding.

[0032] The above only describes preferred embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the present application.

Claims

1. A nanocrystalline magnetic core, characterized by: It includes a cover (1) and a shell (2), the cover (1) is welded on the shell (2), a containing cavity (3) is arranged between the cover (1) and the shell (2), a magnetic core (5) is arranged in the containing cavity (3), and a glue layer (6) is arranged between the containing cavity (3) and the magnetic core (5).

2. The nanocrystalline magnetic core of claim 1, wherein: The shell (2) has a limiting block (7) extending outward, the limiting block (7) is located in the containing cavity (3), and the magnetic core (5) is sleeved on the limiting block (7).

3. A nanocrystalline magnetic core according to claim 2, wherein: The shell (2) is integrally formed with the limiting block (7).

4. The nanocrystalline magnetic core of claim 2, wherein: The shell (2) is a plastic-coated shell.

5. The nanocrystalline magnetic core of claim 2, wherein: The cover (1) and the shell (2) are provided with fool-proof structures.

6. A nanocrystalline magnetic core according to claim 5, wherein: The fool-proof structures include fool-proof blocks (4) and fool-proof grooves (14), the fool-proof blocks (4) and the fool-proof grooves (14) are arranged on the cover (1) and the limiting block (7) respectively, and the fool-proof blocks (4) and the fool-proof grooves (14) are correspondingly arranged.

7. The nanocrystalline magnetic core of claim 1, wherein: The glue layer (6) includes a plurality of first glue layers (9) and a plurality of second glue layers (10), the plurality of first glue layers (9) are located between the upper end face of the magnetic core (5) and the containing cavity (3), and the plurality of second glue layers (10) are located between the lower end face of the magnetic core (5) and the containing cavity (3).

8. The nanocrystalline magnetic core of claim 1, wherein: The cover (1) is ultrasonically welded on the shell (2).

9. A nanocrystalline magnetic core according to claim 8, wherein: The cover (1) and the shell (2) are both hollow structures.

10. The nanocrystalline magnetic core of claim 1, wherein: The magnetic core (5) is a ring structure.

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