CN204463833U - A kind of MP3 player - Google Patents
A kind of MP3 player Download PDFInfo
- Publication number
- CN204463833U CN204463833U CN201520083897.9U CN201520083897U CN204463833U CN 204463833 U CN204463833 U CN 204463833U CN 201520083897 U CN201520083897 U CN 201520083897U CN 204463833 U CN204463833 U CN 204463833U
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- CN
- China
- Prior art keywords
- radiator
- housing
- base plate
- heating radiator
- mounting hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of MP3 player, comprise housing, power amplifier PCBA and heating radiator, power amplifier PCBA comprises PCB and simulation power amplification chip, and heating radiator comprises base plate and is arranged in the heat radiator of plate top surface; Housing comprises the mounting hole of heating radiator, and heating radiator is fixed on the mounting hole position of housing, and heat radiator reaches the outside of housing; Simulation power amplification chip is fixed on the base plate of heating radiator, fits in the radiating surface of simulation power amplification chip and the bottom surface of base plate of radiator.The utility model adopts analog amplifier, and the tonequality of player is good; Simulation power amplification chip is fixed on the base plate of heating radiator, by radiator heat-dissipation, can not be overheated, and player can work long hours in high temperature environments continuously.
Description
[technical field]
The utility model relates to portable teller machines, particularly relates to a kind of MP3 player.
[background technology]
MP3 player can adopt analog amplifier or digital power amplifier, and analog amplifier is better than digital power amplifier tonequality, but shortcoming to be efficiency low, thermal value is high.The MP3 player of analog amplifier is adopted to play for a long time continuously in high temperature environments.
[summary of the invention]
It is good and can the continuous long-time MP3 player play in high temperature environments that the technical problems to be solved in the utility model is to provide a kind of tonequality.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of MP3 player, and comprise housing, power amplifier PCBA and heating radiator, power amplifier PCBA comprises PCB and simulation power amplification chip, and heating radiator comprises base plate and is arranged in the heat radiator of plate top surface; Housing comprises the mounting hole of heating radiator, and heating radiator is fixed on the mounting hole position of housing, and heat radiator reaches the outside of housing; Simulation power amplification chip is fixed on the base plate of heating radiator, fits in the radiating surface of simulation power amplification chip and the bottom surface of base plate of radiator.
Above-described MP3 player, the mounting hole of heating radiator is arranged on the base plate of housing, and the base plate of housing comprises two bearings, and two bearings are arranged in the both sides of heating radiator, and the height of bearing is greater than the height that heat radiator stretches out housing.
Above-described MP3 player, base plate of radiator comprises screw hole, and screw is through the screw hole of base plate of radiator and the mounting hole of simulation power amplification chip, and the end of screw is rotary with nut, is fixed on the base plate of heating radiator by simulation power amplification chip.
Above-described MP3 player, housing comprises back cover and face-piece, and face-piece is connected with back cover screw; Fore shell comprises the latter half of of the top board of housing, rear plate, two blocks of side plates and Housing Base; Face-piece comprises the header board of housing and the first half of Housing Base.
Above-described MP3 player, the length of base plate of radiator is greater than the length of heating radiator mounting hole, the two ends of base plate of radiator load in Housing Base heating radiator mounting hole along on; The inwall of case front plate and rear plate respectively comprises a plurality of convex, and described convex props up the edge, front and back of base plate of radiator bottom surface respectively.
MP3 player of the present utility model adopts analog amplifier, and the tonequality of player is good; Simulation power amplification chip is fixed on the base plate of heating radiator, by radiator heat-dissipation, can not be overheated, and player can work long hours in high temperature environments continuously.
[accompanying drawing explanation]
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the stereographic map of the utility model embodiment MP3 player.
Fig. 2 is the stereographic map at another visual angle of the utility model embodiment MP3 player.
Fig. 3 is the front view of the utility model embodiment MP3 player.
Fig. 4 is the vertical view of the utility model embodiment MP3 player.
Fig. 5 is that A in Fig. 3 is to cut-open view.
Fig. 6 is that B in Fig. 4 is to cut-open view.
Fig. 7 is that C in Fig. 6 is to cut-open view.
Fig. 8 is that D in Fig. 3 is to cut-open view.
Fig. 9 is the stereographic map of the utility model embodiment back cover.
Figure 10 is the stereographic map of the utility model embodiment face-piece.
Figure 11 is the assembly drawing of the utility model embodiment power amplifier PCBA and heating radiator.
Figure 12 is the exploded view of the utility model embodiment MP3 player.
[embodiment]
The structure of the utility model embodiment MP3 player as shown in Figures 1 to 12, comprises housing, master control PCBA 11, power amplifier PCBA 4, handle 12, switch 13, plug 14, button group 15 and heating radiator 5.
Housing comprises back cover 1 and face-piece 2, and face-piece 2 and back cover 1 screw 3 link together.Fore shell comprises latter half of 104 of the top board 101 of housing, rear plate 102, two blocks of side plates 103 and base plate.Face-piece 2 comprises the header board 201 of housing and the first half 202 of base plate.
Power amplifier PCBA comprises PCB 401 and simulation power amplification chip 402.
The base plate of housing 1 has the mounting hole of heating radiator, the base plate of housing 1 has two bearings, two bearings are arranged in the both sides of heating radiator 5.Because the base plate of housing 1 is spliced by back cover 1 and face-piece 2, two bearings are spliced with first half 203 by latter half of 105 equally.
Heating radiator 5 comprises base plate 501 and is arranged in the heat radiator 502 of base plate 501 end face.
The PCB of power amplifier PCBA 4 is fixed in housing, and the pin of simulation power amplification chip 402 welds with PCB 401, fitting with the bottom surface of the base plate 501 of heating radiator of simulation power amplification chip 402.
The base plate 501 of heating radiator 5 has a screw hole 503, screw 6 passes the mounting hole of heating radiator screw hole 503 and simulation power amplification chip 402, and the end of screw 6 is rotary with nut 7, and simulation power amplification chip 402 is fixed on the base plate of heating radiator 5 by nut 7.
Heating radiator 5 is fixed on the heating radiator mounting hole position of housing 1.The length of base plate of radiator 501 is greater than the length of housing 1 heating radiator mounting hole, and the two ends of base plate of radiator 501 are carried on a shoulder pole in housing heating radiator mounting hole along on 106 and 204.The inwall of case front plate 201 has two convexes 205, and convex 205 props up the leading edge of base plate of radiator 501 bottom surface.After housing, the inwall of plate 102 has two convexes 107, and convex 107 props up the back edge of base plate of radiator 501 bottom surface
The heat radiator 502 of heating radiator 5 reaches the outside of housing 1 through the heating radiator mounting hole of housing 1.On housing 1, the height of heating radiator side supports is greater than the height that heat radiator 502 stretches out housing.
The MP3 player of the above embodiment of the utility model adopts analog amplifier, and the tonequality of player is good.Simulation power amplification chip 402 is fixed on the base plate of heating radiator 5, is dispelled the heat by heating radiator 5, can not be overheated, and player can work long hours in high temperature environments continuously.
Claims (5)
1. a MP3 player, comprise housing and power amplifier PCBA, power amplifier PCBA comprises PCB and simulation power amplification chip, it is characterized in that, comprises heating radiator, and heating radiator comprises base plate and is arranged in the heat radiator of plate top surface; Housing comprises the mounting hole of heating radiator, and heating radiator is fixed on the mounting hole position of housing, and heat radiator reaches the outside of housing; Simulation power amplification chip is fixed on the base plate of heating radiator, fits in the radiating surface of simulation power amplification chip and the bottom surface of base plate of radiator.
2. MP3 player according to claim 1, it is characterized in that, the mounting hole of heating radiator is arranged on the base plate of housing, and the base plate of housing comprises two bearings, two bearings are arranged in the both sides of heating radiator, and the height of bearing is greater than the height that heat radiator stretches out housing.
3. MP3 player according to claim 1, it is characterized in that, base plate of radiator comprises screw hole, screw is through the screw hole of base plate of radiator and the mounting hole of simulation power amplification chip, the end of screw is rotary with nut, is fixed on the base plate of heating radiator by simulation power amplification chip.
4. MP3 player according to claim 2, is characterized in that, housing comprises back cover and face-piece, and face-piece is connected with back cover screw; Fore shell comprises the latter half of of the top board of housing, rear plate, two blocks of side plates and Housing Base; Face-piece comprises the header board of housing and the first half of Housing Base.
5. MP3 player according to claim 4, is characterized in that, the length of base plate of radiator is greater than the length of heating radiator mounting hole, the two ends of base plate of radiator load in Housing Base heating radiator mounting hole along on; The inwall of case front plate and rear plate respectively comprises a plurality of convex, and described convex props up the edge, front and back of base plate of radiator bottom surface respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520083897.9U CN204463833U (en) | 2015-02-05 | 2015-02-05 | A kind of MP3 player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520083897.9U CN204463833U (en) | 2015-02-05 | 2015-02-05 | A kind of MP3 player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204463833U true CN204463833U (en) | 2015-07-08 |
Family
ID=53670685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520083897.9U Active CN204463833U (en) | 2015-02-05 | 2015-02-05 | A kind of MP3 player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204463833U (en) |
-
2015
- 2015-02-05 CN CN201520083897.9U patent/CN204463833U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |