Ultrathin radial magnetizing magnet group

Abstract

The utility model discloses an ultrathin radial magnetizing magnet group, which belongs to the field of magnetizing magnets and comprises a transparent PET (polyethylene terephthalate) release film, a magnet ring and a blue PET positioning film which are sequentially arranged from top to bottom. Compared with the prior art, the utility model has the advantages that the double-sided gum red PET film is additionally arranged between the transparent PET release film and the magnet ring, the groove for storing the magnet ring is formed in the double-sided gum red PET film, and the two surfaces of the double-sided gum red PET film are connected with the gum surfaces; therefore, the adhesive tape can be firmly adhered between the double-sided adhesive tape and the transparent PET release film.

Description

Technical Field

[0001] This utility model relates to the field of magnetized magnets, specifically to an ultrathin radial magnetized magnet assembly. Background Technology

[0002] The ultra-thin radially magnetized magnet assembly is mainly made of neodymium iron boron material, which has high magnetic energy product and good temperature stability. It is suitable for various applications requiring high-precision position detection, such as sensors, brushless motors and magnetic encoders.

[0003] The existing ultrathin radial magnet assembly mainly consists of a magnetizable magnet ring and blue PET positioning film and transparent PET release film wrapped around both sides of the magnet ring. The PET positioning film and transparent PET release film are connected by glue or double-sided tape.

[0004] During assembly, when tearing open the blue PET film and inserting the coil, the double-sided tape or glue often fails to pass over the magnet ring and sticks firmly to the transparent PET release film. This can cause the seal to loosen during use, leading to leakage of the magnet ring. Utility Model Content

[0005] The technical problem this invention aims to solve is that the transparent PET release film and blue PET positioning film of the existing ultra-thin radially magnetized magnet assembly often fail to adhere reliably due to the obstruction of the magnet ring.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: an ultra-thin radial magnet assembly, comprising a transparent PET release film, a magnet ring, and a blue PET positioning film arranged sequentially from top to bottom, wherein the blue PET positioning film is bonded to the magnet ring by double-sided adhesive tape, and a double-sided adhesive red PET film for storing the magnet ring is provided between the transparent PET release film and the magnet ring, wherein the magnet ring is of grade N56.

[0007] As an improvement, the magnet ring is composed of several tile-shaped magnets, and a charging interface is provided on one side of the magnet ring.

[0008] As an improvement, one side of the transparent PET release film, the double-sided adhesive red PET film, and the double-sided tape is provided with a charging slot corresponding to the charging interface.

[0009] As an improvement, the magnetic force of the tile-shaped magnet is S on the outside and N on the inside.

[0010] As an improvement, the magnetization of the magnet ring occurs after assembly.

[0011] As an improvement, the magnet ring is magnetized radially.

[0012] The advantages of this invention compared with the prior art are as follows: This device adds a double-sided adhesive red PET film between the transparent PET release film and the magnet ring. The double-sided adhesive red PET film has a groove inside to store the magnet ring. Since the double-sided adhesive red PET film has adhesive surfaces on both sides, it can be firmly bonded between the double-sided tape and the transparent PET release film. Attached Figure Description

[0013] Figure 1 This is an exploded view of the overall structure of an ultra-thin radially magnetized magnet assembly according to this utility model.

[0014] Figure 2 This is a cross-sectional view of the magnet ring of an ultra-thin radially magnetized magnet assembly according to this utility model.

[0015] Figure 3 This is a cross-sectional view of a double-sided adhesive red PET film for an ultra-thin radially magnetized magnet assembly according to this utility model.

[0016] Figure 4 This is a structural diagram of a blue PET positioning film for an ultra-thin radially magnetized magnet assembly according to this utility model.

[0017] As shown in the figure: 1. Transparent PET release film; 2. Magnetic ring; 21. Tile-shaped magnet; 22. Charging interface; 23. Charging slot; 3. Blue PET positioning film; 4. Double-sided adhesive red PET film; 5. Double-sided tape. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] As per the instruction manual Figure 1 , 2 As shown, the magnetic ring includes a transparent PET release film 1, a magnetic ring 2, and a blue PET positioning film 3 arranged from top to bottom. The blue PET positioning film 3 is connected to the magnetic ring 2 by double-sided tape 5. The magnetic ring 2 is of grade N56 and is composed of several tile-shaped magnets 21. A charging interface 22 is provided on one side of the magnetic ring 2. The transparent PET release film 1, the double-sided adhesive red PET film 4, and the double-sided tape 5 all have charging slots 23 on one side corresponding to the charging interface 22. The magnetic force of the tile-shaped magnets 21 is S on the outside and N on the inside. The double-sided tape 5 is pasted on the PET positioning film 3, and then the tile-shaped magnets 21 are arranged in an array on the double-sided tape 5 to form the magnetic ring 2. Note that the direction of the charging interface 22 of the magnetic ring 2 is consistent with the charging slot 23 on the blue PET positioning film 3.

[0020] As per the instruction manual Figure 1 , 3As shown in Figure 4, a double-sided adhesive red PET film 4 is provided between the transparent PET release film 1 and the magnet ring 2 to store the magnet ring 2. The tile-shaped magnet 21 is of grade N56. The magnetization direction of the magnet ring 2 is radial magnetization. The grooved side of the double-sided adhesive red PET film 4 is placed over the magnet ring 2 and then stuck to the double-sided tape 5. The double-sided adhesive red PET film 4 serves as a protective sleeve for the magnet ring 2 and completes the sealing structure of the magnet ring 2. Then, the transparent PET release film 1 is pasted on the other side of the double-sided adhesive red PET film 4. The tile-shaped magnet 21 is of grade N56, which gives it a greater magnetic force than other magnets of the same thickness. To avoid magnetization issues, the magnetization of the magnet ring 2 is usually performed after assembly.

[0021] In the specific implementation of this utility model, when the transparent PET release film 1 and the magnetic ring 2 are used as a whole, the groove of the double-sided adhesive red PET film 4 is placed on the magnetic ring 2 to make it a protective cover for the magnetic ring 2. Then, the transparent PET release film 1 is stuck to the other side of the double-sided adhesive red PET film 4. The charging interface 22 and the charging slot 23 are in the same direction, and the corresponding charging plug is installed. Finally, it is placed in the magnetizer for magnetization.

[0022] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An ultra-thin radially magnetized magnet assembly, comprising a transparent PET release film (1), a magnet ring (2), and a blue PET positioning film (3) arranged sequentially from top to bottom, wherein the blue PET positioning film (3) is bonded to the magnet ring (2) by double-sided adhesive tape (5), characterized in that: A double-sided adhesive red PET film (4) is provided between the transparent PET release film (1) and the magnet ring (2) to store the magnet ring (2). The magnet ring (2) is of grade N56.

2. The ultrathin radially magnetized magnet assembly according to claim 1, characterized in that: The magnet ring (2) is composed of several tile-shaped magnets (21), and a charging interface (22) is provided on one side of the magnet ring (2).

3. The ultrathin radially magnetized magnet assembly according to claim 2, characterized in that: The transparent PET release film (1), the double-sided adhesive red PET film (4), and the double-sided tape (5) are all provided with a charging slot (23) on one side corresponding to the charging interface (22).

4. The ultrathin radially magnetized magnet assembly according to claim 2, characterized in that: The magnetic force of the tile-shaped magnet (21) is S on the outside and N on the inside.

5. The ultrathin radially magnetized magnet assembly according to claim 1, characterized in that: The magnetization of the magnet ring (2) occurs after assembly.

6. The ultrathin radially magnetized magnet assembly according to claim 1, characterized in that: The magnet ring (2) is magnetized radially.

Images