Novel injection molding receiving end magnetic group

Abstract

The utility model discloses a novel injection molding receiving end magnetic group, which belongs to the field of injection molding and comprises a magnetic group consisting of a plurality of tile-shaped magnets, one side of the magnetic group is provided with a square film adhered through UV (ultraviolet) glue, and the mark of each tile-shaped magnet is N56SH. Compared with the prior art, the mobile phone shell injection molding device has the advantages that before injection molding of a mobile phone shell is completed, a magnetic group composed of tile-shaped magnets is pasted on a square film through UV glue, so that the situation that the magnetic group is scattered by injection liquid during injection molding of the magnetic group is avoided, and the stability of the magnetic force of the magnetic group is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of injection molding, specifically to a novel injection-molded receiver magnetic assembly. Background Technology

[0002] In mobile phone applications, to ensure that the phone can still be fixed to an object when it cannot be held in hand, current phone cases usually have a miniature magnetic group installed on the back. The magnetic force of the group will attract the phone to a fixed object, such as when a car is moving, the phone can be attached to the dashboard, ensuring that the phone will not fall off while facilitating operation.

[0003] The existing magnetic assembly is usually placed directly into the mold of the phone case during the injection molding process. Then, the molten liquid of the phone case is injected into the mold. After cooling, the magnetic assembly will be integrated with the phone case into a single structure.

[0004] When injecting the solution, attention should be paid to the injection flow rate. If the flow rate is too high, the magnetic group may be dispersed by the injection solution, thereby weakening the magnetic force of the magnetic group and affecting its adsorption. Utility Model Content

[0005] The technical problem this invention aims to solve is that, during the injection molding process of existing new injection-molded receiver magnetic assemblies, the injection fluid easily disperses the magnetic assembly.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a novel injection-molded receiver magnetic assembly, comprising a magnetic assembly composed of several tile-shaped magnets, wherein a square film is attached to one side of the magnetic assembly by UV adhesive, and the tile-shaped magnets are of grade N56SH.

[0007] As an improvement, the square membrane is provided with a positioning groove inside to restrict the position of the magnetic assembly.

[0008] As an improvement, the material of the tile-shaped magnet is neodymium iron boron with nickel plating on the surface.

[0009] As an improvement, a black retaining ring is attached to the bottom surface of the other side of the tile-shaped magnet to fix its position.

[0010] As an improvement, the UV adhesive connecting the magnetic assembly and the square film is initially fixed using a UV lamp.

[0011] As an improvement, the magnetization direction of the tile-shaped magnet is to magnetize both the top and bottom along the thickness of the tile-shaped magnet.

[0012] The advantages of this invention compared with the prior art are as follows: Before the injection molding of the mobile phone case is completed, the magnetic assembly composed of tile-shaped magnets is glued to the square film with UV adhesive to ensure that the magnetic assembly will not be dispersed by the injection liquid during injection molding, thereby ensuring the stability of the magnetic force of the magnetic assembly. Attached Figure Description

[0013] Figure 1 This is a general structural diagram of a novel injection-molded receiver magnetic assembly according to this utility model.

[0014] Figure 2 This is a cross-sectional view of the overall structure of a novel injection-molded receiver magnetic assembly according to this utility model.

[0015] Figure 3 This is an exploded view of the overall structure of a novel injection-molded receiver magnetic assembly according to this utility model.

[0016] Figure 4 This is a structural diagram of a tile-shaped magnet of a novel injection-molded receiving end magnetic assembly according to this utility model.

[0017] As shown in the figure: 1. Magnetic assembly; 11. Tile-shaped magnet; 2. Square membrane; 21. Positioning groove; 3. Black fixing ring. 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 , 3 As shown in Figure 4, a magnetic assembly 1 is composed of several tile-shaped magnets 11. The tile-shaped magnets 11 are made of neodymium iron boron with nickel plating on the surface, and the magnetization direction of the tile-shaped magnets 11 is along the thickness of the tile-shaped magnets, both vertically and horizontally. A black fixing ring 3 is attached to the bottom surface of the other side of the tile-shaped magnets 11 to fix their positions. The neodymium iron boron tile-shaped magnets 11 are attached to the black fixing ring 3 so that the tile-shaped magnets 11 form a ring of magnetic assembly 1. Then, a magnetizer is used to magnetize the magnetic assembly 1. The black fixing ring 3 is used to fix the magnetic assembly 1 and also to prevent the magnetic assembly 1 from directly contacting the outside world.

[0020] As per the instruction manual Figure 1 , 2As shown in Figure 3, a square film 2 is attached to one side of the magnetic assembly 1 with UV adhesive. The tile-shaped magnet 11 is of grade N56SH. The square film 2 has a positioning groove 21 inside to restrict the position of the magnetic assembly 1. The UV adhesive connecting the magnetic assembly 1 and the square film 2 is initially fixed by a UV lamp. UV adhesive is applied to the top of the assembled magnetic assembly 1 and the positioning groove 21 of the square film 2. The magnet end of the magnetic assembly 1 is placed into the positioning groove 21 for fixation. Then it is placed under a UV lamp for irradiation. The UV adhesive will quickly solidify into a solid under the action of ultraviolet light, thereby connecting the magnetic assembly 1 and the square film 2.

[0021] In a specific implementation of this invention, the magnet surface of the magnetic assembly 1 is glued to the positioning groove 21 using UV adhesive. Then, the mobile phone film 2 is placed under a UV lamp for irradiation, causing the magnetic assembly 1 to adhere to the square film 2. The square film 2 is then placed into the mold of the mobile phone case, with the square film 2 facing upwards. After that, the mobile phone case mold is closed, the injection port of the injection mold is opened, and the mold is injected. After that, a cooling period is entered. After cooling, the mold is opened and the mobile phone case is removed. Because the magnetic assembly 1 is fixed by the square film 2 before injection, the position of the tile-shaped magnet 11 will not be misaligned due to the flow rate of the injection liquid during injection, thereby ensuring the magnetic force of the magnetic assembly 1.

[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. A novel injection-molded receiver magnetic assembly, comprising a magnetic assembly (1) composed of a plurality of tile-shaped magnets (11), characterized in that: The magnetic assembly (1) has a square film (2) attached to one side by UV adhesive, and the tile-shaped magnet (11) is of grade N56SH.

2. The novel injection-molded receiver magnetic assembly according to claim 1, characterized in that: The square membrane (2) has a positioning groove (21) inside to restrict the position of the magnetic group (1).

3. The novel injection-molded receiver magnetic assembly according to claim 1, characterized in that: The material of the tile-shaped magnet (11) is neodymium iron boron with nickel plating on the surface.

4. The novel injection-molded receiver magnetic assembly according to claim 1, characterized in that: A black fixing ring (3) is attached to the bottom side of the other side of the tile-shaped magnet (11) to fix the position of the tile-shaped magnet (11).

5. A novel injection-molded receiver magnetic assembly according to claim 1, characterized in that: The UV adhesive connecting the magnetic assembly (1) and the square film (2) is initially fixed by a UV lamp.

6. A novel injection-molded receiver magnetic assembly according to claim 1, characterized in that: The magnetization direction of the tile-shaped magnet (11) is along the thickness of the tile-shaped magnet, both above and below.

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