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Edge covering type ferrite product and processing method thereof

A ferrite and edge-wrapping technology, applied in the direction of magnetic objects, inductance/transformer/magnet manufacturing, magnetic materials, etc., can solve the problems that affect the normal use of mobile phones, drop on the circuit board, affect the appearance of the product, etc., and achieve structural Simple, enhanced hemming effect, easy processing effect

Pending Publication Date: 2019-03-29
上海昊佰智造精密电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the ferrite contains too much iron metal, when the ferrite is laser cut or die (cold die) stamped, particles will be generated on the cut section or punched section, and these particles not only affect the appearance of the product, but also With the long-term use of the mobile phone, under the influence of the environment (such as dropping the mobile phone), the particles on the ferrite section will fall on the circuit board
Because the circuit board has been used for a long time, it will be partially oxidized. Once these falling particles fall on the oxidized part of the circuit board, when the mobile phone is in normal use, the whole mobile phone main board or part of the main board circuit will be connected in series. Affect the normal use of the mobile phone, and even cause serious damage to the mobile phone

Method used

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  • Edge covering type ferrite product and processing method thereof
  • Edge covering type ferrite product and processing method thereof
  • Edge covering type ferrite product and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 , figure 2 A edging type ferrite product is shown. The ferrite product includes a ferrite 1 and a single-sided adhesive 2 and a double-sided adhesive 3 respectively attached to both sides of the ferrite 1. The double-sided adhesive The edge of 3 and the edge of the single-sided adhesive 2 are attached together, and the edge of the ferrite 1 is completely wrapped between the single-sided adhesive 2 and the double-sided adhesive 3.

[0037] Among them, the single-sided adhesive 2 includes a single-sided adhesive bonding part 201 that is bonded to one side of the ferrite 1 and a single-sided adhesive attached to the periphery of the single-sided adhesive bonding part 201 and connected to the single-sided adhesive bonding part 201 Adhesive edging part 202, double-sided tape 3 includes a double-sided tape attaching part 301 attached to the other side of ferrite 1, and a double-sided tape attaching part 301 around the periphery of the double-sided tape attaching...

Embodiment 2

[0045] In this embodiment, such as image 3 As shown, the single-sided adhesive edging portion 202 is provided with a single-sided adhesive flanging portion 203, one side of the double-sided adhesive edging portion 302 is attached to the single-sided adhesive edging portion 202, and the other side is attached to the single-sided adhesive The flange portion 203 is attached to each other, and the rest is the same as in Embodiment 1.

Embodiment 3

[0047] In this embodiment, the distance between the edge of the double-sided tape 3 and the edge of the ferrite 1 is 0.4 mm, and the rest is the same as in the first embodiment.

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Abstract

The invention relates to an edge covering type ferrite product and a processing method thereof. The ferrite product comprises a ferrite, and a single-sided adhesive and a double-sided adhesive which are adhered to the two sides of the ferrite respectively. The edges of the double-sided adhesive are adhered to the edges of the single-sided adhesive, and the edges of the ferrite are completely covered between the single-sided adhesive and the double-sided adhesive. During the machining, the ferrite is subjected to machine-shaping at first, then the single-sided adhesive and the double-sided adhesive are adhered to the two side surfaces of the ferrite respectively, and the edges of the double-sided adhesive are adhered to the edges of the single-sided adhesive. Compared with the prior art, the ferrite are subjected to edge covering by means of the double-sided adhesive and the single-sided adhesive, thus the normal use of the ferrite is ensured, the adhesion of the ferrite product and a flexible circuit board is facilitated, and the falling of particles on a cross section of the ferrite edges formed by laser cutting or die stamping can be avoided, thereby ensuring the normal functionsof the circuit board and a mobile phone, and being easy in machining.

Description

Technical field [0001] The invention belongs to the technical field of ferrite products, and relates to an edged ferrite product and a processing method thereof. Background technique [0002] Nowadays, with the promotion of cashless consumption methods, payment methods such as two-microcode, barcode and NFC (Near Field Communication) have been widely used, making people more and more dependent on mobile phones. Among them, mobile phones that support NFC need to have a built-in NFC chip. In the NFC chip, ferrite plays an important role, such as improving the performance of the NFC chip, effectively increasing the sensing distance, and ensuring low magnetic loss. When ferrite is used, it is generally bonded to the corresponding circuit soft board, and then installed in the mobile phone together. [0003] Existing ferrite products generally set a layer of glue on one of the sides of the ferrite, and attach the release film to the glue surface. When using, tear off the release film t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/34H01F41/02
CPCH01F1/344H01F41/02
Inventor 蒋建国刘晓鹏
Owner 上海昊佰智造精密电子股份有限公司
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