CN203325468U

CN203325468U - MP3 (Moving Picture Experts Group Audio Layer-3) player

Info

Publication number: CN203325468U
Application number: CN2013202793259U
Authority: CN
Inventors: 张艳春; 芦立娟
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2013-05-21
Filing date: 2013-05-21
Publication date: 2013-12-04
Anticipated expiration: 2023-05-21

Abstract

The utility model relates to an MP3 (Moving Picture Experts Group Audio Layer-3) player which comprises a button module, a USB (Universal Serial Bus) interface, a power supply module, a singlechip microcomputer, a flash memory, an audio module, a first isolation hood, a second isolation hood and a PCB (Printed Circuit Board). The MP3 player is characterized in that the button module, the USB interface, the power supply module, the singlechip microcomputer, the flash memory, the audio module, the first isolation hood and the second isolation hood are fixed on the PCB board in a welding manner; the button module, the USB interface, the power supply module, the flash memory and the audio module are respectively connected with the singlechip microcomputer through signal lines; the first isolation hood is installed at the peripheries of the button module, the USB interface, the power supply module, the singlechip microcomputer, the flash memory and the audio module; the second isolation hood is installed at the periphery of the first isolation hood. The MP3 player provided by the utility model effectively shields electromagnetic interference and greatly improves the tone quality of the MP3 player, and has a wide market prospect.

Description

A kind of MP3 player

Technical field

The utility model relates to a kind of MP3 player, belongs to electronic device field.

Background technology

The MP3 player is people's media playing tools commonly used, has enriched people's free life; Along with improving constantly of scientific and technical development and electrification, automatization level, electromagnetic interference (EMI) and electromagnetic protection problem become increasingly conspicuous, disturb strong place at some, MP3 player internal noise is continuous, had a strong impact on people's audio visual effect, therefore aspect anti-interference and radiation be a urgent problem.

Summary of the invention

The purpose of this utility model is to provide a kind of MP3 player.

Problem to be solved in the utility model is the deficiency of traditional MP3 player aspect anti-interference and radiation.

A kind of MP3 player, comprise key-press module, USB interface, power module, single-chip microcomputer, flash storer, audio-frequency module, the first cage, the second cage and pcb board, it is characterized in that: described key-press module, USB interface, power module, single-chip microcomputer, flash storer, audio-frequency module, the first cage, the second cage all are fixed by welding on pcb board; Key-press module, USB interface, power module, flash storer, audio-frequency module all are connected with single-chip microcomputer by signal wire, the first cage is arranged on the periphery of key-press module, USB interface, power module, single-chip microcomputer, flash storer, audio-frequency module, and the second cage is arranged on the periphery of the first cage.

Described the second cage ovalize, material is titanium-lead alloy.

Described the first cage is rectangle, every limit indention, and material is mock silver.

Advantage of the present utility model: compared with prior art, the utility model, by double-deck quarantine measures, has effectively shielded electromagnetic interference (EMI), has greatly improved the tonequality of MP3 player, should have market outlook widely.

The accompanying drawing explanation

Fig. 1 is the schematic diagram of a kind of MP3 player of the utility model;

In figure: 1, key-press module 2, USB interface 3, power module 4, single-chip microcomputer 5, flash storer 6, audio-frequency module 7, the first cage 8, the second cage 9, pcb board.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described.

A kind of MP3 player, comprise key-press module 1, USB interface 2, power module 3, single-chip microcomputer 4, flash storer 5, audio-frequency module 6, the first cage 7, the second cage 8 and pcb board 9, it is characterized in that: described key-press module 1, USB interface 2, power module 3, single-chip microcomputer 4, flash storer 5, audio-frequency module 6, the first cage 7, the second cage 8 all are fixed by welding on pcb board 9; Key-press module 1, USB interface 2, power module 3, flash storer 5, audio-frequency module 6 all are connected with single-chip microcomputer 4 by signal wire, the first cage 7 is arranged on the periphery of key-press module 1, USB interface 2, power module 3, single-chip microcomputer 4, flash storer 5, audio-frequency module 6, and the second cage 8 is arranged on the periphery of the first cage 7.

Described the second cage 8 ovalizes, material is titanium-lead alloy, is mainly used in the interference of each rahmonic to the MP3 player, best through the oval jamproof effect of reality test.

Described the first cage 7 is rectangle, and every limit indention increases the reflective surface area to interference wave, improves isolation effect, and material is mock silver, has good anti-penetration ability.

Using method of the present utility model and principle, after being weldingly fixed on pcb board 9 by key-press module 1, USB interface 2, power module 3, single-chip microcomputer 4, flash storer 5, audio-frequency module 6, the first cage 7, the second cage 8, after its peripheral solder fixes the first cage 7 and the second cage 8, this MP3 player has improved antijamming capability greatly, plays tonequality good.

Claims

1. a MP3 player, comprise key-press module (1), USB interface (2), power module (3), single-chip microcomputer (4), flash storer (5), audio-frequency module (6), the first cage (7), the second cage (8) and pcb board (9), it is characterized in that: described key-press module (1), USB interface (2), power module (3), single-chip microcomputer (4), flash storer (5), audio-frequency module (6), the first cage (7), the second cage (8) all are fixed by welding on pcb board (9); Key-press module (1), USB interface (2), power module (3), flash storer (5), audio-frequency module (6) all are connected with single-chip microcomputer (4) by signal wire, the first cage (7) is arranged on the periphery of key-press module (1), USB interface (2), power module (3), single-chip microcomputer (4), flash storer (5), audio-frequency module (6), and the second cage (8) is arranged on the periphery of the first cage (7).

2. a kind of MP3 player according to claim 1, it is characterized in that: described the second cage (8) ovalize, material is titanium-lead alloy.

3. a kind of MP3 player according to claim 1, it is characterized in that: described the first cage (7) is rectangle, every limit indention, material is mock silver.