CN204272566U - A kind of active dynamic temperature control heat abstractor of multimedia all-in-one machine - Google Patents
A kind of active dynamic temperature control heat abstractor of multimedia all-in-one machine Download PDFInfo
- Publication number
- CN204272566U CN204272566U CN201420589522.5U CN201420589522U CN204272566U CN 204272566 U CN204272566 U CN 204272566U CN 201420589522 U CN201420589522 U CN 201420589522U CN 204272566 U CN204272566 U CN 204272566U
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- cabinet
- multimedia
- chip microcomputer
- machine
- mainboard
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- Expired - Fee Related
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Abstract
The active dynamic temperature control heat abstractor of multimedia all-in-one machine, comprise cabinet, multiple temperature sensor is provided with around projector body in cabinet and mainboard, copper cooling fin is provided with between projector body and mainboard, DC electric fan is provided with in cabinet, circuit board is provided with in cabinet, circuit board is provided with single-chip microcomputer and reverse driven, wherein the signal input part of single-chip microcomputer connects multiple temperature sensor, the signal output part of single-chip microcomputer connects reverse driven, and drives the drive motors of DC electric fan by reverse driven.The part heat of mainboard and projector body effectively fully can dissipate and improve operating efficiency by the utility model, extends the useful life of multimedia all-in-one machine.
Description
Technical field
The utility model relates to electronic information technical field, is specifically related to a kind of active dynamic temperature control heat abstractor of multimedia all-in-one machine.
Background technology
Along with the further in-depth of Education equity policy performs, the large-scale promotion of multi-media classroom, Concerning Multimedia-related Teaching Methodologies.In vast rural area and small and medium-sized cities, multimedia equipment and multimedia all-in-one machine product more and more appear in field research, and its display mode more have employed the projection pattern of high brightness, large-screen.But these products are while increase brightness, also a heat dissipation problem that can not avoid is faced with: due in electrical/optical transfer process, conversion efficiency is not very high, a large amount of heat energy can be produced, if heat energy can not be discharged in time, then can directly cause product internal temperature to raise, affect the normal work of each device of product and shorten the useful life of product.
Utility model content
For the deficiency that above-mentioned prior art exists, the purpose of this utility model is to provide the active dynamic temperature control heat abstractor of multimedia all-in-one machine.
The technical solution of the utility model is: the active dynamic temperature control heat abstractor of multimedia all-in-one machine, comprise cabinet, it is characterized in that: around the projector body in cabinet and mainboard, be provided with multiple temperature sensor, copper cooling fin is provided with between projector body and mainboard, DC electric fan is provided with in described cabinet, circuit board is provided with in cabinet, circuit board is provided with single-chip microcomputer and reverse driven, wherein the signal input part of single-chip microcomputer connects multiple temperature sensor, the signal output part of single-chip microcomputer connects reverse driven, and the drive motors of DC electric fan is driven by reverse driven.
The utility model has the advantages that: 1, the utility model adopts the copper cooling fin of high exchange rate, can effectively the part heat of mainboard and projector body fully be dissipated; 2, the temperature value around air inlet, air outlet and thermal source is monitored in real time by temperature inductor, and these temperature value signal are passed to single-chip microcomputer, by rotating speed and the keying of Single-chip Controlling fan, achieve active dynamic heat radiation, improve operating efficiency, extend the useful life of multimedia all-in-one machine.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Now by reference to the accompanying drawings, the utility model is further described.
As shown in Figure 1, the active dynamic temperature control heat abstractor of multimedia all-in-one machine, comprise cabinet 1, multiple temperature sensor 4(at least 3 is provided with around projector body 2 in cabinet 1 and mainboard 3, an air inlet being arranged on cabinet, an air outlet being arranged on cabinet, last is arranged on the projector body cabinet corresponding with in the middle of mainboard), copper cooling fin 5 is provided with between projector body 2 and mainboard 3, DC electric fan 6 is provided with in described cabinet 1, circuit board 7 is provided with in cabinet 1, circuit board 7 is provided with single-chip microcomputer and reverse driven, wherein the signal input part of single-chip microcomputer connects multiple temperature sensor 4, the signal output part of single-chip microcomputer connects reverse driven, and the drive motors of DC electric fan 6 is driven by reverse driven.
That single-chip microcomputer adopts is the STC89C52RC that STC Corporation produces, and is a low-voltage, high performance 8 single-chip microcomputers.
Temperature sensor adopts the DS1B20 digital temperature sensor of DALLAS semiconductor company of U.S. assembling, and the result of measurement directly exports with the form of digital signal, with the serial transfer of " one-wire bus " mode to CPU.
That reverse driven adopts is Darlington reverse driven UL N2803, fan motor and realize the adjustment of fan electromotor speed.
Fan electromotor one termination 5V power supply, the OUT3 pin of another termination ULN2803, the IN3 pin of ULN2803 is connected with the P2.2 pin of single-chip microcomputer, by the P2.2 pin output pwm signal of control single chip computer, controls speed and the start and stop of fan direct current machine thus.
Claims (1)
1. the active dynamic temperature control heat abstractor of multimedia all-in-one machine, comprise cabinet, it is characterized in that: around the projector body in cabinet and mainboard, be provided with multiple temperature sensor, copper cooling fin is provided with between projector body and mainboard, DC electric fan is provided with in described cabinet, circuit board is provided with in cabinet, circuit board is provided with single-chip microcomputer and reverse driven, wherein the signal input part of single-chip microcomputer connects multiple temperature sensor, the signal output part of single-chip microcomputer connects reverse driven, and drives the drive motors of DC electric fan by reverse driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589522.5U CN204272566U (en) | 2014-10-13 | 2014-10-13 | A kind of active dynamic temperature control heat abstractor of multimedia all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589522.5U CN204272566U (en) | 2014-10-13 | 2014-10-13 | A kind of active dynamic temperature control heat abstractor of multimedia all-in-one machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204272566U true CN204272566U (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420589522.5U Expired - Fee Related CN204272566U (en) | 2014-10-13 | 2014-10-13 | A kind of active dynamic temperature control heat abstractor of multimedia all-in-one machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204272566U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929624A (en) * | 2016-06-03 | 2016-09-07 | 深圳市中幼国际教育科技有限公司 | Image brightness automatic regulating device and method for stereoscopic projector |
| CN111475004A (en) * | 2020-03-08 | 2020-07-31 | 苏州浪潮智能科技有限公司 | Server heat dissipation device and control method |
-
2014
- 2014-10-13 CN CN201420589522.5U patent/CN204272566U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929624A (en) * | 2016-06-03 | 2016-09-07 | 深圳市中幼国际教育科技有限公司 | Image brightness automatic regulating device and method for stereoscopic projector |
| CN111475004A (en) * | 2020-03-08 | 2020-07-31 | 苏州浪潮智能科技有限公司 | Server heat dissipation device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20181013 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |