CN205942589U - Control circuit that fan was just reversing and is dispelling heat and remove dust - Google Patents
Control circuit that fan was just reversing and is dispelling heat and remove dust Download PDFInfo
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- CN205942589U CN205942589U CN201620448118.5U CN201620448118U CN205942589U CN 205942589 U CN205942589 U CN 205942589U CN 201620448118 U CN201620448118 U CN 201620448118U CN 205942589 U CN205942589 U CN 205942589U
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- bridge rectifier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model belongs to the technical field of machine case heat dissipation technology and specifically relates to indicate a control circuit that fan was just reversing and is dispelling heat and remove dust, including first bridge type rectifier circuit for output alternating voltage to quick -witted case auxiliary electrical power source changes into the DC voltage, first electric capacity inductance filter circuit for ripple component among the first bridge type rectifier circuit output voltage of filtering, fan the control unit, PFC the control unit for carry out the speed governing to the fan, the control unit is just reversing for the just reversal of control fan, the the control unit presupposition voltage value of just reversing is done and is judged the processing, first bridge type rectifier circuit's output and first electric capacity inductance filter circuit's input electric connection, the control unit and PFC the control unit electric connection are just reversing, the control unit and fan the control unit electric connection are just reversing. The utility model discloses can so that the fan just reverse, can be for the part dispels the heat during fan corotation, the dust of fan self time can be got rid of in the fan reversal, has dedusting function.
Description
Technical field
This utility model is related to case radiation technical field, refers in particular to a kind of control electricity of fan rotating radiating dedusting
Road.
Background technology
Computer housing can produce larger heat in running, and in the state of high temperature, work can shadow for a long time for electronic product
Ring its service life and work efficiency, in order to effectively disperse the heat that in computer housing, electronic component produces, improve electronic component
The service life of product and work efficiency, are all by carrying out driving heat operation by radiator fan, to reach electronic product at present
The purpose of quick heat radiating.
In the hot operating process of drive of radiator fan, rotating forward of radiator fan can lead to outer gas stream to enter in cabinet
Portion, carries out heat to thermal source and goes to disperse, imported in electronic product in a large number yet with outer gas stream, so that easily in cabinet
Laying dust in portion and fan, current fan does not possess the function of understanding dust and reduction waste heat in cabinet.
Utility model content
The fan that this utility model is directed in prior art in cabinet can not speed governing and cannot be asking of fan self-dedusting
Topic provides the control circuit that dedusting is radiated in a kind of fan rotating.
In order to solve above-mentioned technical problem, this utility model adopts the following technical scheme that：
A kind of control circuit of fan rotating radiating dedusting that this utility model provides, including
First bridge rectifier, for changing into DC voltage to the output AC voltage of cabinet accessory power supply；
First capacitor and inductor filter circuit, for filtering the ripple component in the first bridge rectifier output voltage；
Fan control unit；
PFC control unit, for carrying out speed governing to fan；
Rotating control unit, for controlling the rotating of fan, described rotating control unit preset voltage value does to be sentenced
Disconnected process；When cabinet main power source starts, rotating control unit judges and orders about according to default main power voltage value
Fan main story, when cabinet main power source cuts out, is powered to control unit by accessory power supply, rotating control unit is according to default
Accessory power supply magnitude of voltage judges and orders about fan reversion；
The input of the outfan of described first bridge rectifier and the first capacitor and inductor filter circuit is electrically connected with；Institute
State rotating control unit and PFC control unit is electrically connected with；Described rotating control unit and fan control unit electrically connect
Connect.
Wherein, also include：Second bridge rectifier, for changing into unidirectional current to the output AC voltage of cabinet main power source
Pressure；
Second capacitor and inductor filter circuit, for filtering the ripple component in the second bridge rectifier output voltage；
Described second bridge rectifier and the second capacitor and inductor filter circuit are electrically connected with；Described PFC control unit and
Described second capacitor and inductor filter circuit is electrically connected with.
Wherein, described fan control unit is included for controlling fan to invert the time control circuit of duration, for machine
The output AC voltage of case accessory power supply changes into the 3rd bridge rectifier of DC voltage and is used for filtering the 3rd bridge rectifier
Ripple component the 3rd capacitor and inductor filter circuit in circuit output voltage；Described 3rd bridge rectifier and the 3rd electric capacity electricity
Sense filter circuit is electrically connected with；Described 3rd capacitor and inductor filter circuit and time control circuit are electrically connected with.
Wherein, also include the temperature control electricity opening or closing for temperature in chassis is monitored and controls with fan
Road, is provided with the temperature sensor for sensing temperature in chassis in described temperature-control circuit, described temperature-control circuit and
Described second capacitor and inductor filter circuit is electrically connected with, and described temperature-control circuit and described fan control unit are electrically connected with.
The beneficial effects of the utility model：
A kind of control circuit of fan rotating radiating dedusting that this utility model provides, so that fan is operationally
Carry out rotating according to demand, the height of rotation speed of the fan can be adjusted by adjusting pwm pulse dutycycle, fan can when rotating forward
Think that part radiates, the dust of fan itself can be removed during fan reversion, there is dustproof function.
Brief description
Fig. 1 is a kind of schematic diagram of the control circuit of fan rotating radiating dedusting of the present utility model.
Reference in FIG includes：
1 first bridge rectifier 2 first capacitor and inductor filter circuit
3 positive and negative control unit 4 PFC control units
5 second bridge rectifier 6 second capacitor and inductor filter circuit
7 the 3rd bridge rectifier 8 the 3rd capacitor and inductor filter circuit
9 time control circuit 10 temperature-control circuit
11 fan control units.
Specific embodiment
For the ease of the understanding of those skilled in the art, this utility model is made further with accompanying drawing with reference to embodiment
Explanation, the content that embodiment refers to is not to restriction of the present utility model.Below in conjunction with accompanying drawing, this utility model is carried out
Detailed description.
A kind of control circuit of fan rotating radiating dedusting that this utility model provides, including
First bridge rectifier 1, for changing into DC voltage to the output AC voltage of cabinet accessory power supply；
First capacitor and inductor filter circuit 2, for filtering the ripple component in the first bridge rectifier 1 output voltage；
Fan control unit 11；
PFC control unit 4, for carrying out speed governing to fan；
Rotating control unit 3, for controlling the rotating of fan, described rotating control unit 3 preset voltage value does
Judgement is processed；When cabinet main power source starts, rotating control unit 3 judges and drives according to default main power voltage value
So that fan is rotated forward, when cabinet main power source cuts out, powered to control unit by accessory power supply, rotating control unit 3 is according to pre-
If accessory power supply magnitude of voltage judge and order about fan reversion；
The input of the outfan of described first bridge rectifier 1 and the first capacitor and inductor filter circuit 2 is electrically connected with；
Described rotating control unit 3 and PFC control unit 4 are electrically connected with；Described rotating control unit 3 and fan control unit 11
It is electrically connected with.
In this utility model, also include：Second bridge rectifier 5, for the output AC voltage to cabinet main power source
Change into DC voltage；
Second capacitor and inductor filter circuit 6, for filtering the ripple component in the second bridge rectifier 5 output voltage；
Described second bridge rectifier 5 and the second capacitor and inductor filter circuit 6 are electrically connected with；Described PFC control unit 4
It is electrically connected with described second capacitor and inductor filter circuit 6.
Specifically, when cabinet main power source is opened, voltage is provided by main power source, and electric current is through described second bridge rectifier electricity
Road 5, described second bridge rectifier 5 changes into unidirectional current to alternating current, because the output voltage of rectification circuit is not pure
DC voltage, for obtaining preferable DC voltage, described electric current is after the second bridge rectifier 5 again through the second electric capacity electricity
Sense filter circuit 6, the ripple component that described second capacitor and inductor filter circuit 6 filters in Output Voltage in Rectified Circuits is straight to obtain
Stream voltage；When described rotating control unit 3 detects the voltage of automatic power supply, fan is driven to be rotated forward, simultaneously described
PFC control unit 4 can adjust the size of the rotating speed of fan by controlling dutycycle, can also effectively reduce fan work simultaneously
Noise when making.
Specifically, when cabinet main power source cuts out, voltage is provided by the accessory power supply of cabinet, the electric current that accessory power supply provides
Through the first bridge rectifier 1, described first bridge rectifier 1 changes into unidirectional current to alternating current, due to rectification circuit
Output voltage is not DC voltage purely, and for obtaining preferable DC voltage, described electric current is through the first bridge rectifier 1
Afterwards again through the first capacitor and inductor filter circuit 2, described first capacitor and inductor filter circuit 2 filters in Output Voltage in Rectified Circuits
Ripple component obtaining DC voltage；Described rotating control unit 3 detect from the voltage of accessory power supply when, drive wind
Fan is inverted, and can effectively reduce the waste heat of electronic component in power supply, cabinet and other cabinets, concurrently disinfect during fan reversion
Cabinet inside and the dust of fan.
In this utility model, described fan control unit 11 is included for controlling fan to invert the time control circuit of duration
9th, it is used for the output AC voltage of cabinet accessory power supply is changed into the 3rd bridge rectifier 7 of DC voltage and being used for and filter the
Ripple component the 3rd capacitor and inductor filter circuit 8 in three bridge rectifier 7 output voltage；Described 3rd bridge rectifier
7 and the 3rd capacitor and inductor filter circuit 8 be electrically connected with.
Specifically, when cabinet main power source cuts out, voltage is provided by the accessory power supply of cabinet, and major-minor power supply and blower controls
Unit 11 is electrically connected with, and the electric current that accessory power supply provides is through the 3rd bridge rectifier 7, described 3rd bridge rectifier 7
Unidirectional current is changed into alternating current, because the output voltage of rectification circuit is not DC voltage purely, for obtaining preferable direct current
Voltage, described electric current after the 3rd bridge rectifier 7 again through the 3rd capacitor and inductor filter circuit 8, described 3rd electric capacity
Inductor filter circuit 8 filters ripple component in Output Voltage in Rectified Circuits to obtain DC voltage, described 3rd capacitor and inductor
Filter circuit 8 and time control circuit 9 are electrically connected with, and provide operating current for time control circuit 9, time control circuit 9 can
To control the duration of fan reversion.
In this utility model, also include the temperature opening or closing for temperature in chassis is monitored and controls with fan
Degree control circuit 10, is provided with the temperature sensor for sensing temperature in chassis, described temperature in described temperature-control circuit 10
Degree control circuit and described second capacitor and inductor filter circuit electric connection, described temperature-control circuit and described fan control list
Unit is electrically connected with.Electronic component product temperature in described temperature sensor senses cabinet, described temperature-control circuit 10 simultaneously
When preset value is 20 degree, external ambient temperature automatically turns on fan when being more than 26 degree, when external ambient temperature is less than 20 degree,
Fan can be automatically switched off.
The above, be only this utility model preferred embodiment, not this utility model is made any pro forma
Limit although this utility model is open as above with preferred embodiment, but be not limited to this utility model, any be familiar with basis
Technical professional, in the range of without departing from technical solutions of the utility model, when the technology contents using the disclosure above are made
A little Equivalent embodiments changing or be modified to equivalent variations, as long as be without departing from technical solutions of the utility model content, foundation
This utility model technology refers to any simple modification, equivalent variations and the modification that above example is made, and belongs to this practicality
In the range of new technique scheme.
Claims (4)
1. a kind of fan rotating radiate dedusting control circuit it is characterised in that：Including
First bridge rectifier, for changing into DC voltage to the output AC voltage of cabinet accessory power supply；
First capacitor and inductor filter circuit, for filtering the ripple component in the first bridge rectifier output voltage；
Fan control unit；
PFC control unit, for carrying out speed governing to fan；
Rotating control unit, for controlling the rotating of fan, described rotating control unit preset voltage value makes a decision place
Reason；When cabinet main power source starts, rotating control unit judges and orders about fan according to default main power voltage value
Main story, when cabinet main power source cuts out, is powered to control unit by accessory power supply, rotating control unit is according to default auxiliary
Supply voltage value judges and orders about fan reversion；
The input of the outfan of described first bridge rectifier and the first capacitor and inductor filter circuit is electrically connected with；Described just
Reversion control unit and PFC control unit are electrically connected with；Described rotating control unit and fan control unit are electrically connected with.
2. a kind of fan rotating according to claim 1 radiate dedusting control circuit it is characterised in that：Also include：
Second bridge rectifier, for changing into DC voltage to the output AC voltage of cabinet main power source；
Second capacitor and inductor filter circuit, for filtering the ripple component in the second bridge rectifier output voltage；
Described second bridge rectifier and the second capacitor and inductor filter circuit are electrically connected with；Described PFC control unit and described
Second capacitor and inductor filter circuit is electrically connected with.
3. a kind of fan rotating according to claim 1 radiate dedusting control circuit it is characterised in that：Described fan
Control unit is included for controlling fan to invert the time control circuit of duration, for the output AC electricity to cabinet accessory power supply
The 3rd bridge rectifier that pressure changes into DC voltage becomes with for filtering the pulsation in the 3rd bridge rectifier output voltage
Divide the 3rd capacitor and inductor filter circuit；Described 3rd bridge rectifier and the 3rd capacitor and inductor filter circuit are electrically connected with；Institute
State the 3rd capacitor and inductor filter circuit and time control circuit is electrically connected with.
4. a kind of fan rotating according to claim 2 radiate dedusting control circuit it is characterised in that：Also include using
In the temperature-control circuit opening or closing that temperature in chassis is monitored and controls with fan, in described temperature-control circuit
It is provided with the temperature sensor for sensing temperature in chassis, described temperature-control circuit and described second capacitor and inductor filtered electrical
Road is electrically connected with, and described temperature-control circuit and described fan control unit are electrically connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448118.5U CN205942589U (en) | 2016-05-17 | 2016-05-17 | Control circuit that fan was just reversing and is dispelling heat and remove dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448118.5U CN205942589U (en) | 2016-05-17 | 2016-05-17 | Control circuit that fan was just reversing and is dispelling heat and remove dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205942589U true CN205942589U (en) | 2017-02-08 |
Family
ID=57935270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620448118.5U Active CN205942589U (en) | 2016-05-17 | 2016-05-17 | Control circuit that fan was just reversing and is dispelling heat and remove dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205942589U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107204655A (en) * | 2017-06-12 | 2017-09-26 | 深圳追日新能源技术有限公司 | One kind isolation charging equipment |
| CN113960860A (en) * | 2021-11-08 | 2022-01-21 | 四川启睿克科技有限公司 | System and method capable of automatically processing dust accumulated on heat dissipation filter screen of projector |
| CN114109886A (en) * | 2021-11-29 | 2022-03-01 | 珠海格力电器股份有限公司 | Fan reverse rotation detection method and device and electric equipment |
-
2016
- 2016-05-17 CN CN201620448118.5U patent/CN205942589U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107204655A (en) * | 2017-06-12 | 2017-09-26 | 深圳追日新能源技术有限公司 | One kind isolation charging equipment |
| CN113960860A (en) * | 2021-11-08 | 2022-01-21 | 四川启睿克科技有限公司 | System and method capable of automatically processing dust accumulated on heat dissipation filter screen of projector |
| CN114109886A (en) * | 2021-11-29 | 2022-03-01 | 珠海格力电器股份有限公司 | Fan reverse rotation detection method and device and electric equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |