CN2833718Y

CN2833718Y - Vehicle-mounted MP4 hard disk player

Info

Publication number: CN2833718Y
Application number: CN 200520056194
Authority: CN
Inventors: 陈际全
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-30
Filing date: 2005-03-30
Publication date: 2006-11-01
Anticipated expiration: 2015-03-30

Abstract

The utility model relates to a vehicle MP4 player with a hard disk, which comprises a casing, wherein an MP4 playing circuit board and the hard disk are arranged inside the casing; the hard disk is arranged in a hard disk box, and each of the hard disk box and the MP4 playing circuit board is provided with two rowed-wire connectors; the two rowed-wire connectors of the hard disk box are connected in parallel with an I/O interface of the hard disk and are connected with the two rowed-wire connectors of the MP4 playing circuit board respectively through two rowed-wires, and the two wiring connectors of the MP4 playing circuit board are connected in parallel with a hard disk interface of the MP4 playing circuit board. The hard disk and the MP4 playing circuit board are connected together through the two rowed-wires, so that the player accomplishes dual-channel transmission of data and has effectively improved shock resistance. The utility model can play audio-video files of the format such as VCD, DVD, MP3, MP4, etc., and has great memory capacitance and can repeatedly record without influence of ambient dust. The utility model can also be provided with a shock-proof device between the hard disk and the casing so as to further improve the shock resistance.

Description

Vehicle-mounted MP4 hard disc player

Technical field

The utility model relates to the vehicle-mounted media playing device, particularly vehicle-mounted MP4 hard disc player.

Background technology

Existing vehicle-mounted media playing device has tape player and Disc player.There are defectives such as lower tone, magnetic head are easily dirty, capacity is little in tape player, is eliminated just gradually.Disc player is owing to be to read data on the CD by laser-bounce, and anti seismic efficiency is poor, and automobile vibrations in the process of moving can cause laser head reading of data mistake, causes the interruption of in progress music or picture.

Summary of the invention

The purpose of this utility model is the above-mentioned defective that overcomes prior art, and the vehicle-mounted MP4 hard disc player that a kind of memory capacity is big, anti-seismic performance is good is provided.

The vehicle-mounted MP4 hard disc player of the utility model comprises shell, MP4 playing circuit plate and hard disk are set in the shell, hard disk is installed in the hard-disk cartridge, on hard-disk cartridge and the MP4 playing circuit plate two bus bar connectors are set all, two bus bar connectors on the hard-disk cartridge are connected to the I/O interface of hard disk, two bus bar connectors on the MP4 playing circuit plate are connected to the hard-disk interface of MP4 playing circuit, and two bus bar connectors on the hard-disk cartridge are connected in two bus bar connectors on the MP4 playing circuit plate by two winding displacements respectively.

The hard disk of this vehicle-mounted MP4 hard disc player is connected by two winding displacements with MP4 playing circuit plate, realize binary channels transmission data, wherein the single line on winding displacement shaken disconnected, as long as the line of identical numbering is continuous on another winding displacement, all can operate as normal, effectively improved anti-seismic performance.It can play the audio-video document of forms such as VCD, DVD, MP3, MP4.Memory space is big, can record repeatedly, and is not subjected to the influence of ambient dust.Can also between hard disk and shell, vibration abatement be set, further improve anti-seismic performance.

Description of drawings

Fig. 1 is the structural representation of the utility model exemplary embodiments;

Fig. 2 is the A-A cut-open view of Fig. 1;

Fig. 3 is the B-B cut-open view of Fig. 1;

Fig. 4 is the schematic block circuit diagram of present embodiment.

Embodiment

Be described further below in conjunction with accompanying drawing.

As Figure 1-3, this vehicle-mounted MP4 hard disc player comprises shell 1, MP4 playing circuit plate 12 and hard disk are set in the shell 1, hard disk is installed in the hard-disk cartridge 3, hard-disk cartridge 3 both sides are provided with two bus bar connectors 5,9, two bus bar connectors 5,9 are connected to the I/O interface of hard disk, two bus bar connectors 5 ' are set on the MP4 playing circuit plate 12,9 ', two bus bar connectors 5 ', 9 ' is connected to the hard-disk interface of MP4 playing circuit, bus bar connector 5 on the hard-disk cartridge 3 is connected with bus bar connector 5 ' on the MP4 playing circuit plate 12 by winding displacement 6, and the bus bar connector 9 on the hard-disk cartridge 3 passes through winding displacement 8 and is connected with bus bar connector 9 ' on the MP4 playing circuit plate 12.The I/O interface of above-mentioned hard disk is an api interface, i.e. Application Programming Interface.Also can adopt the hard disk of other interface.

In order further to improve anti-seismic performance, between hard-disk cartridge 3 and shell 1, vibration abatement is set, this vibration abatement comprises two elastic supports 4,7, article two, elastic support 4,7 is fixed on the shell 1, on the elastic support 4,7 hard-disk cartridge support column 11 is set, hard-disk cartridge 3 is installed on the hard-disk cartridge support column 11, all is with crash roll 10 on each hard-disk cartridge support column 11.Crash roll 10 can adopt high-temperature resistant rubber crash roll or air bag crash roll.2 crash rolls for the horizontal direction setting are used to slow down hard disk vibrations in the horizontal direction among the figure.

Elastic support the 4, the 7th, the cross section is the metal support of concave character type, and the hard-disk cartridge support column 11 on the support 4,7 is the metallic support post.Hard-disk cartridge 3 also is the metallic hard tray salver, so that the static that harddisk surface is produced passes through metallic support post and metal support ground connection.

Vibration abatement between described hard-disk cartridge 3 and the shell 1 also can be: comprise the plurality of elastic lug, the hard-disk cartridge support column all is set on each elastic lug, all be with crash roll on the hard-disk cartridge support column.Wherein, elastic lug can be made "  " type metal lug by sheet metal, and the hard-disk cartridge support column on the elastic lug can adopt the metallic support post, and the electrostatic grounding that is beneficial to harddisk surface is produced is eliminated.

In order to solve the heating problem of internal body in the playing process, present embodiment is provided with some louvres on MP4 playing circuit plate 12, also be provided with louvre with this louvre corresponding position on the shell 1, make internal body and air outside convection current, the internal body temperature is remained on below 80 ℃, guarantee operate as normal.

Fig. 4 is the schematic block circuit diagram of present embodiment.As shown in FIG., described MP4 playing circuit plate 12 is provided with vehicle-mounted MP4 unit, CPU and radio reception unit, vehicle-mounted MP4 unit and radio reception unit all are mounted on the port of CPU, the audio output of vehicle-mounted MP4 unit and radio reception unit all connects the input end of vehicle-mounted power amplifier unit, the output termination audio output interface of vehicle-mounted power amplifier unit, the video output terminals of vehicle-mounted MP4 unit connects video output interface, vehicle-mounted MP4 unit also connects hard-disk interface, SD card (being Secure DigitalCard) and USB interface, and the port of described CPU also connects the panel display unit.

This vehicle-mounted MP4 hard disc player can be play the audio-video document of forms such as VCD, DVD, MP3, MP4, can also receive broadcasting.Its hard disk is connected by two winding displacements with MP4 playing circuit plate, realizes binary channels transmission data, wherein the single line on winding displacement shaken disconnected, as long as the line of identical numbering is continuous on another winding displacement, still can operate as normal, effectively improved anti-seismic performance.By between hard-disk cartridge and shell, vibration abatement being set, further improved anti-seismic performance.

Claims

1, vehicle-mounted MP4 hard disc player, comprise shell, it is characterized in that: MP4 playing circuit plate and hard disk are set in the described shell, hard disk is installed in the hard-disk cartridge, on hard-disk cartridge and the MP4 playing circuit plate two bus bar connectors are set all, two bus bar connectors on the hard-disk cartridge are connected to the I/O interface of hard disk, two bus bar connectors on the MP4 playing circuit plate are connected to the hard-disk interface of MP4 playing circuit, and two bus bar connectors on the hard-disk cartridge are connected in two bus bar connectors on the MP4 playing circuit plate by two winding displacements respectively.

2, vehicle-mounted MP4 hard disc player according to claim 1, it is characterized in that: between described hard-disk cartridge and the shell vibration abatement is set, this vibration abatement comprises at least two elastic supports, and the hard-disk cartridge support column is set on the elastic support, and each hard-disk cartridge support column outside all is with crash roll.

3, vehicle-mounted MP4 hard disc player according to claim 2, it is characterized in that: described elastic support is the metal support that the cross section is concave character type, the hard-disk cartridge support column on the metal support is the metallic support post.

4, vehicle-mounted MP4 hard disc player according to claim 1, it is characterized in that: between described hard-disk cartridge and the shell vibration abatement is set, this vibration abatement comprises the plurality of elastic lug, and the hard-disk cartridge support column all is set on each elastic lug, and hard-disk cartridge support column outside all is with crash roll.

5, vehicle-mounted MP4 hard disc player according to claim 4, it is characterized in that: described elastic lug is "  " type metal lug, the hard-disk cartridge support column on the elastic lug is the metallic support post.

6, according to claim 2 or 4 described vehicle-mounted MP4 hard disc players, it is characterized in that: described crash roll is high-temperature resistant rubber crash roll or air bag crash roll.

7, vehicle-mounted MP4 hard disc player according to claim 1 is characterized in that: described MP4 playing circuit plate is provided with some louvres, also is provided with louvre with this louvre corresponding position on the shell.

8, vehicle-mounted MP4 hard disc player according to claim 1, it is characterized in that: described MP4 playing circuit plate is provided with vehicle-mounted MP4 unit, CPU and radio reception unit, vehicle-mounted MP4 unit and radio reception unit all are mounted on the port of CPU, the audio output of vehicle-mounted MP4 unit and radio reception unit all connects the input end of vehicle-mounted power amplifier unit, the output termination audio output interface of vehicle-mounted power amplifier unit, the video output terminals of vehicle-mounted MP4 unit connects video output interface, vehicle-mounted MP4 unit also connects hard-disk interface, SD card and USB interface, the port of described CPU also connects the panel display unit.

9, vehicle-mounted MP4 hard disc player according to claim 1, it is characterized in that: the I/O interface of described hard disk is an api interface.