CN204267317U - A kind of temperature control USB fan - Google Patents
A kind of temperature control USB fan Download PDFInfo
- Publication number
- CN204267317U CN204267317U CN201420179171.0U CN201420179171U CN204267317U CN 204267317 U CN204267317 U CN 204267317U CN 201420179171 U CN201420179171 U CN 201420179171U CN 204267317 U CN204267317 U CN 204267317U
- Authority
- CN
- China
- Prior art keywords
- usb fan
- chip microcomputer
- temperature
- fan
- integrated chip
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of temperature control USB fan, comprise temperature transducer, numeral method module, single-chip microcomputer, D/A change integrated chip, power magnification circuit, USB fan direct current generator, described temperature transducer is connected with described single-chip microcomputer, described single-chip microcomputer connects described D/A respectively and changes integrated chip and numeral method module, described D/A changes integrated chip and is connected with described power magnification circuit, and described power magnification circuit is connected with described USB fan direct current generator.When ambient temperature is higher or lower than certain value, the rotating speed of USB fan increases accordingly or reduces, thus the change reached according to temperature and automatically regulate the effect of rotation speed of the fan.
Description
Technical field
The utility model relates to fan, particularly a kind of temperature control USB fan.
Background technique
Along with widely using of notebook computer, the use of people to USB fan is more and more frequent, but the rotating speed of USB fan often can not be adjusted, always run with certain rotating speed, bring impact to a certain degree will to like this health of people, and the waste of electric energy can be caused in a way.
Summary of the invention
The purpose of this utility model is to provide a kind of temperature control USB fan, the problem that the rotating speed solving the USB fan existed in prior art can not be adjusted along with the change of temperature.
The technical solution adopted in the utility model is: a kind of temperature control USB fan, it comprises temperature transducer, numeral method module, single-chip microcomputer, D/A change integrated chip, power magnification circuit, USB fan direct current generator, described temperature transducer is connected with described single-chip microcomputer, described single-chip microcomputer connects described D/A respectively and changes integrated chip and numeral method module, described D/A changes integrated chip and is connected with described power magnification circuit, and described power magnification circuit is connected with described USB fan direct current generator.
The beneficial effects of the utility model are: the utility model not only can solve when USB fan runs with certain rotating speed, due to the problem that influence of temperature change people are healthy, the rotating speed of USB fan can also be made adjusted along with the change of temperature, there is energy-conserving action to a certain degree.
Accompanying drawing explanation
Fig. 1 is the working principle schematic diagram of a kind of temperature control USB of the utility model fan.
Fig. 2 is the schematic diagram of the temperature control USB fan of the utility model one mode of execution.
In figure: 1, temperature transducer; 2, single-chip microcomputer; 3, D/A changes integrated chip; 4, power magnification circuit; 5, USB fan direct current generator; 6, numeral method module; 7, USB fan.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of temperature control USB fan, comprise temperature transducer, numeral method module, single-chip microcomputer, D/A change integrated chip, power magnification circuit, USB fan direct current generator, described temperature transducer is connected with described single-chip microcomputer, described single-chip microcomputer connects described D/A respectively and changes integrated chip and numeral method module, described D/A changes integrated chip and is connected with described power magnification circuit, and described power magnification circuit is connected with described USB fan direct current generator.
A kind of temperature control USB of the utility model fan, in use, single-chip microcomputer 2 makes corresponding process by the temperature that temperature transducer 1 gathers, when temperature is higher than certain value, the analog voltage that single-chip microcomputer 2 makes D/A change integrated chip 3 output increases, D/A changed by power magnification circuit 4 control voltage with the USB fan direct current generator 5 of certain output power that analog voltage that integrated chip 3 exports converts to, also will increase, the rotating speed of USB fan 7 is increased; When temperature is lower than certain value, the analog voltage that single-chip microcomputer 2 makes D/A change integrated chip 3 output reduces, D/A changed by power magnification circuit 4 control voltage with the USB fan direct current generator 5 of certain output power that analog voltage that integrated chip 3 exports converts to, also will reduce, the rotating speed of USB fan 7 is reduced; Thus the rotating speed achieving USB fan 7 regulates automatically along with the change of temperature, simultaneously by the Temperature displaying that detects in numeral method module 6.
Claims (1)
1. a temperature control USB fan, it is characterized in that: described temperature control USB fan comprises temperature transducer, numeral method module, single-chip microcomputer, D/A change integrated chip, power magnification circuit, USB fan direct current generator, described temperature transducer is connected with described single-chip microcomputer, described single-chip microcomputer connects described D/A respectively and changes integrated chip and numeral method module, described D/A changes integrated chip and is connected with described power magnification circuit, and described power magnification circuit is connected with described USB fan direct current generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179171.0U CN204267317U (en) | 2014-04-15 | 2014-04-15 | A kind of temperature control USB fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179171.0U CN204267317U (en) | 2014-04-15 | 2014-04-15 | A kind of temperature control USB fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267317U true CN204267317U (en) | 2015-04-15 |
Family
ID=52802188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420179171.0U Expired - Fee Related CN204267317U (en) | 2014-04-15 | 2014-04-15 | A kind of temperature control USB fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10268248B2 (en) | 2016-08-01 | 2019-04-23 | Microsoft Technology Licensing, Llc | Power based thermal management of device |
-
2014
- 2014-04-15 CN CN201420179171.0U patent/CN204267317U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10268248B2 (en) | 2016-08-01 | 2019-04-23 | Microsoft Technology Licensing, Llc | Power based thermal management of device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20160415 |