CN205753958U - Small-sized Width funtion AC/DC universal aerofoil fan - Google Patents
Small-sized Width funtion AC/DC universal aerofoil fan Download PDFInfo
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- CN205753958U CN205753958U CN201620573745.1U CN201620573745U CN205753958U CN 205753958 U CN205753958 U CN 205753958U CN 201620573745 U CN201620573745 U CN 201620573745U CN 205753958 U CN205753958 U CN 205753958U
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Abstract
The utility model discloses a kind of small-sized Width funtion AC/DC universal, there is the aerofoil fan of automatic protection functions, belong to cooling fan manufacture and control technical field.Including housing, be arranged on the motor at housing center, and the impeller being connected with motor shaft, it is characterised in that one piece of wiring board being provided with motor power conversion control unit is set in the side of motor.Described motor power conversion control unit includes: AC or DC power is transformed to the power converting circuit of high voltage direct current, high voltage direct current is converted into the control circuit for pulse-width modulation of the low-voltage DC of motor work, and the automatic supervisory circuit of motor by joining power translation circuit.Reliably, the ventilation and heat that may be used for electric welding machine, power-supply device, armarium, electronic equipment etc. is used for this utility model simple in construction, control.
Description
Technical field
The utility model discloses a kind of small-sized Width funtion AC/DC universal, there is the aerofoil fan of automatic protection functions,
Belong to cooling fan manufacture and control technical field.
Background technology
Along with the popularization and application of microprocessor technology, increasing electronic and electrical equipment is produced, these equipment
Although working power be not quite similar, but be widely used the small axial flow fan power source as its main frame ventilation and heat.
Small axial flow fan has simple in construction, small in volume, advantage easy to install, is extensively that industry is main
Machine product is supporting.It is mainly used in electric welding machine, power-supply device, armarium, electronic and electrical equipment etc. as radiator fan, its standard
Changing seriation strong, overall dimensions and user installation size have the regulation of international standard and national standard, it is impossible to break through.
Therefore, any improvement to structure all can strictly be limited by standard and be become the most difficult.
Owing to auxiliary products are varied, the technical problem affecting the production of this small axial flow fan and application at present exists
In: power supply mode limits, and ac fan is only used for ac power supply method, and DC fan is only used for direct current supply mode, no
Can be mixed；The restriction of supply voltage, the aerofoil fan of 110V is only used for 110V and powers, and the aerofoil fan of 220V is only used for
220V powers, and does not has the product that a kind of 20 260V powers of alterating and direct current are general.This will increase Matching and selection, production and supply and
The workload of aftermarket attachment deposit work and complexity.It addition, aerofoil fan power consumption is big, efficiency is low, self-protection function is not
Perfect, poor for applicability will also result in fault, serve negative effect to the properly functioning band of electronic equipment.
Therefore, a kind of offer voltage suitability is strong, and AC/DC universal has automatic protection functions and meets the world and country
Standard-sized small axial flow fan, for solve current aerofoil fan produce and application in technical problem the most necessary.
Summary of the invention
This utility model is for the deficiencies in the prior art, it is provided that a kind of voltage suitability is strong, and AC/DC universal has automatically
Defencive function and meet the small-sized Width funtion AC/DC universal aerofoil fan of the world and national standard size.
The technical scheme realizing this utility model purpose shows；The power conversion control list that integrated circuit controls is set
Unit, converts the power supply of input, blood pressure lowering and control adjust so that regardless of frequency and the voltage of input power, fan
The power supply of motor is in rated range all the time, it is ensured that in the widest supply district, and fan electromotor can normally work；Meanwhile, if
Put corresponding control protection electric circuit, motor operating state is carried out closed loop monitoring；Above-mentioned power conversion control unit over all Integration
On one piece of wiring board, and it is arranged in the framework of fan, in limited space, it is achieved that aerofoil fan is by common electricity
Device, is changed into Multi-function electronic intelligent electrical equipment.
A kind of small-sized Width funtion AC/DC universal aerofoil fan, including housing, is arranged on the motor at housing center, Yi Jiyu
The impeller that motor shaft is connected, it is characterised in that arrange one piece in the side of motor and be provided with motor power conversion control unit
Wiring board.
Described motor power conversion control unit includes: AC or DC power is transformed to the power supply of high voltage direct current
Translation circuit, high voltage direct current is converted into the pulsewidth modulation control of the low-voltage DC of motor work by joining power translation circuit
Circuit processed, and the automatic supervisory circuit of motor.
Described power converting circuit, including electromagnetic interface filter and full wave bridge rectifier and filter capacitor composition
Current rectifying and wave filtering circuit.
Described control circuit for pulse-width modulation includes:
The on-off circuit of field effect transistor switching tube composition and the control circuit of integrated circuit composition；
Connect the current rectifying and wave filtering circuit of the output transformer secondary output of field effect transistor switching tube on-off circuit；
The automatic supervisory circuit of described motor includes:
Integrated circuit connects critesistor and is monitored ambient temperature；
Integrated circuit, by the working voltage of Phototube Coupling sampling fan, carries out voltage stabilization regulation and control, or overvoltage protection
Process；
Integrated circuit, by sampling, adjusts PWM duty cycle, it is achieved output voltage stabilization or overvoltage protection process.
Described motor includes that inside has the Hall chip to the monitoring of fan running operating current.
When the abnormal conditions such as stall occur, it is automatically switched off fan power supply, to ensure that fan does not haves accident.
The operation principle of described motor power conversion control unit is；Customer power supply Power convert is become low-voltage direct
Electricity, uses pulse-width modulation circuit controlling filed effect transistor on-off circuit, adjusts output voltage for fan running.
During work, the power supply using the user of fan can be powered by direct current, and voltage range is 20V-260V;Can also
Being AC-powered, voltage range is 20V-260V(50Hz/60Hz).Fan internal circuit board is converted to unified for customer power supply
High voltage direct current, it is provided that to IC integrated pulse width modulation control chip circuit.Pulse width modulating chip circuit is at monitoring temperature, fan electricity
Under stream and voltage monitoring feedback integration are coordinated to control, provide the work power supply of fan to fan, to ensure that fan is stably transported
Turn.When there is abnormal condition (such as: artificial by stalled fan etc.), circuit can be closed fan and be powered, and protects fan, prevents
Fortuitous event occurs.After abnormal condition is got rid of, fan can start automatically, remains in operation.When fan ambient temperature just exceedes
During normal temperature, monitoring temperature can close power supply by control circuit, and when input voltage exceedes normal range, circuit also can be automatic
Close power supply.
This utility model has the advantage that
On the premise of overall dimensions and user installation size meet international standard and national standard, it is achieved that aerofoil fan
By common electrical equipment, it is changed into Multi-function electronic intelligent electrical equipment." fool's fan " epoch of small axial flow fan, institute are started
" the fool's fan " stated is as idiot camera, it is not necessary to consider power supply natures, voltage, polarity, as long as overall dimensions is identical, with
Just connecting line just can relieved work, it is thus achieved that good radiating effect, is very easy to the application of client；
Having wide in range voltage adaptation, 20V-260V power of alterating and direct current is general, and this is that existing small axial flow fan cannot
The technology height reached, is the fundamental difference of this utility model and prior art, is also the concrete embodiment of its creativeness；
Low energy, efficiently, fan uses power consumption to be about the 30% of original fan, but heat dissipation exhaust amount is than original wind
Fan raising 20%；
Improve standardization, seriation and the generalization manufactured and designed with production management process, save material, silicon steel
Sheet, the amount ratio of enamel-covered wire saved 50% originally；
Improve the safety in utilization of aerofoil fan, fan have employed temperature protection, overvoltage protection, stall over current protection
Protect, replace tradition appliance circuit with modern science and technology integrated circuit, be technological revolution the most deep in aerofoil fan industry, accumulate
Hide huge economic benefit and social benefit.
This utility model simple in construction, control reliably, may be used for electric welding machine, power-supply device, armarium, electronic equipment
Deng ventilation and heat be used.The series of products of same type can also be extended to, in centrifugal blower, equally solve existing
There is the Similar Problems of technology.
Accompanying drawing explanation
Accompanying drawing 1 is electricity functional-block diagram of the present utility model.
Accompanying drawing 2 is the circuit diagram of this utility model embodiment.
Accompanying drawing 3 is the front view of aerofoil fan of the present utility model.
Accompanying drawing 4 is the right view of Fig. 3.
Accompanying drawing 5 is the section of structure of aerofoil fan of the present utility model.
In figure: 1-impeller, 2-motor, 3-wiring board, 4-housing.
Detailed description of the invention
Below by Figure of description 1-5, make specific embodiment of the utility model to disclose further.Purpose is more
Show the central scope of invention fully, extend its intension rather than the restriction for technical scheme.Because for art
Technical staff for, according to design of the present utility model, the specific embodiments of multiple replacement can be converted out easily.
Embodiment one
A kind of small-sized Width funtion AC/DC universal aerofoil fan, including housing 4, is arranged on the motor 2 at housing center, and
The impeller 1 being connected with motor shaft, it is characterised in that arrange one piece in the side of motor 2 and be provided with motor power conversion control list
The wiring board 3 of unit.
Described motor power conversion control unit includes: AC or DC power is transformed to the power supply of high voltage direct current
Translation circuit, high voltage direct current is converted into the pulsewidth modulation control of the low-voltage DC of motor work by joining power translation circuit
Circuit processed, and the automatic supervisory circuit of motor.
Described power converting circuit, including electromagnetic interface filter and full wave bridge rectifier and filter capacitor composition
Current rectifying and wave filtering circuit.
Described control circuit for pulse-width modulation includes:
The on-off circuit of field effect transistor switching tube composition and the control circuit of integrated circuit 8015 composition；
Connect diode rectification (D3) capacitor of the output transformer secondary output of field effect transistor switching tube on-off circuit
The current rectifying and wave filtering circuit that (E3, E4) and inductance (L2) form.
The automatic supervisory circuit of described motor includes:
Integrated circuit 8015 core electricity 5 feet (RT) connects critesistor (R13) and is monitored ambient temperature；
Integrated circuit 8015 core electricity 2 feet (FB), by the working voltage of Phototube Coupling sampling fan, carries out voltage stabilization tune
Control, or overvoltage protection process；
Integrated circuit 8015 core electricity 6 feet (SENSE) is sampled by resistance R7, adjusts PWM duty cycle, it is achieved output voltage
Stable or overvoltage protection processes.
Described motor is the 12V AC permanent magnet that inside has the Hall chip PA73 to the monitoring of fan running operating current
Motor.When the abnormal conditions such as stall occur, it is automatically switched off fan power supply, to ensure that fan does not haves accident.
The model of field effect transistor switching tube is 8N60 series.
Embodiment electrical schematic diagram illustrates:
Power supply, by electromagnetic interface filter and full wave bridge rectifier and filter capacitor, is converted to high voltage direct current,
The on-off circuit working power of supply field effect transistor switching tube composition；
Control integrated circuit 8015 core electricity 3 feet (VIN) of field effect transistor switching tube, through resistance (R2) current-limited startup, opens
Dynamic internal pulse-width modulation device, is made whole on-off circuit work by chip 8 foot (GATE) output modulated signal；
The outfan of field effect transistor switching tube on-off circuit is secondary, accesses diode rectification (D3) capacitor (E3, E4)
The current rectifying and wave filtering circuit formed with inductance (L2), generates the operation voltage of fan electromotor；
Integrated circuit 8015 core electricity 5 feet (RT) connects critesistor (R13) and is monitored ambient temperature；
Integrated circuit 8015 core electricity 2 feet (FB), by the working voltage of Phototube Coupling sampling fan, carries out voltage stabilization tune
Control, or overvoltage protection process；
Integrated circuit 8015 core electricity 6 feet (SENSE) is sampled by R7, adjusts PWM duty cycle, it is achieved output voltage stabilization
Or overvoltage protection processes.
Have inside PA73 Hall chip and fan running operating current is monitored, when the abnormal conditions such as stall occur,
It is automatically switched off fan power supply, to ensure that fan does not haves accident.
Claims (6)
1. a small-sized Width funtion AC/DC universal aerofoil fan, including housing, is arranged on the motor at housing center, and with electricity
The impeller that arbor is connected, it is characterised in that one piece of line being provided with motor power conversion control unit is set in the side of motor
Road plate；
Described motor power conversion control unit includes: AC or DC power is transformed to the power conversion of high voltage direct current
Circuit, high voltage direct current is converted into the pulse width modulation controlled electricity of the low-voltage DC of motor work by joining power translation circuit
Road, and the automatic supervisory circuit of motor.
Small-sized Width funtion AC/DC universal aerofoil fan the most according to claim 1, it is characterised in that described power supply becomes
Change circuit, including electromagnetic interface filter and full wave bridge rectifier and the current rectifying and wave filtering circuit of filter capacitor composition.
Small-sized Width funtion AC/DC universal aerofoil fan the most according to claim 1, it is characterised in that described pulsewidth is adjusted
Control circuit processed includes:
The on-off circuit of field effect transistor switching tube composition and the control circuit of integrated circuit 8015 core electricity composition；
Connect output the diode rectification D3 of transformer secondary output, capacitor E3, the electric capacity of field effect transistor switching tube on-off circuit
The current rectifying and wave filtering circuit of device E4 and inductance L2 composition.
Small-sized Width funtion AC/DC universal aerofoil fan the most according to claim 1, it is characterised in that described motor is certainly
Dynamic supervisory circuit includes:
Integrated circuit 8015 core electricity RT foot connects critesistor R13 and is monitored ambient temperature；
Integrated circuit 8015 core electricity FB foot, by the working voltage of Phototube Coupling sampling fan, carries out voltage stabilization regulation and control, or mistake
Voltage protection processes；
Integrated circuit 8015 core electricity SENSE foot is sampled by resistance R7, adjusts PWM duty cycle, it is achieved output voltage stabilization or
Overvoltage protection processes.
Small-sized Width funtion AC/DC universal aerofoil fan the most according to claim 1, it is characterised in that described motor is
Inside has the 12V direct current permanent magnet motor of the Hall chip PA73 to the monitoring of fan running operating current.
Small-sized Width funtion AC/DC universal aerofoil fan the most according to claim 3, it is characterised in that described field effect
The model of crystal switch pipe is 8N60 series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573745.1U CN205753958U (en) | 2016-06-15 | 2016-06-15 | Small-sized Width funtion AC/DC universal aerofoil fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573745.1U CN205753958U (en) | 2016-06-15 | 2016-06-15 | Small-sized Width funtion AC/DC universal aerofoil fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205753958U true CN205753958U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620573745.1U Active CN205753958U (en) | 2016-06-15 | 2016-06-15 | Small-sized Width funtion AC/DC universal aerofoil fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896949A (en) * | 2016-06-15 | 2016-08-24 | 苏州新区百利电子有限公司 | Small-size wide-voltage AC/DC universal axial-flow fan and power supply control method thereof |
-
2016
- 2016-06-15 CN CN201620573745.1U patent/CN205753958U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896949A (en) * | 2016-06-15 | 2016-08-24 | 苏州新区百利电子有限公司 | Small-size wide-voltage AC/DC universal axial-flow fan and power supply control method thereof |
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| GR01 | Patent grant |