CN105003455B - Air blower speed adjusting module device - Google Patents
Air blower speed adjusting module device Download PDFInfo
- Publication number
- CN105003455B CN105003455B CN201510505325.XA CN201510505325A CN105003455B CN 105003455 B CN105003455 B CN 105003455B CN 201510505325 A CN201510505325 A CN 201510505325A CN 105003455 B CN105003455 B CN 105003455B
- Authority
- CN
- China
- Prior art keywords
- adjusting module
- speed adjusting
- voltage
- air blower
- air
- 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
Landscapes
- Control Of Positive-Displacement Air Blowers (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The present invention relates to car air-conditioner parts technical field, a kind of air blower speed adjusting module device is specifically related to.The bottom of shell is provided with fin, is encapsulated by foam-rubber cushion between the top of fin and the bottom interior wall of shell；The top of shell is provided with wire harness slot, and the inserted sheet being placed in wire harness slot is connected with the pcb board for being placed in enclosure.Speed adjusting module is controlled by Air-Conditioning Control Panel output pwm signal, just had in speed adjusting module after pwm signal Vcc voltage and powered to internal discrete device when outputing, different pwm signals are exported by changing Air-Conditioning Control Panel, speed adjusting module exports different linear voltages to control blower speed, when the Air-Conditioning Control Panel output positive dutycycle of pwm control signal is bigger, speed adjusting module output voltage is smaller.Using PWM regulations, under conditions of the non-maximum of air blower, by adjusting effective voltage value, itself does not consume electric energy to speed adjusting module to the present invention, so as to play the purpose of energy-conservation fuel-economizing.
Description
Technical field
The present invention relates to car air-conditioner parts technical field, a kind of air blower speed adjusting module device is specifically related to.
Background technology
In car air-conditioner part field, traditional automobile air conditioner speed regulation module is consumption power device, in air blower
Under conditions of non-maximum, speed adjusting module is required to partial pressure, consumes the electric energy of vehicle, uneconomical energy-conservation.
The content of the invention
For technical problem present in prior art, it is an object of the invention to provide a kind of air blower speed adjusting module dress
Put.
To achieve these goals, the technical solution adopted in the present invention is：A kind of air blower speed adjusting module device, including
Shell, the bottom of the shell is provided with fin, is sealed by foam-rubber cushion between the top of fin and the bottom interior wall of shell
Dress；The top of the shell is provided with wire harness slot, and the inserted sheet being placed in wire harness slot is connected with the pcb board for being placed in enclosure.
The speed regulating method of air blower speed adjusting module, speed adjusting module is controlled by Air-Conditioning Control Panel output pwm signal, when
The interior Vcc voltage that just has of speed adjusting module is powered to internal discrete device after outputing pwm signal, by changing airconditioning control face
Plate exports different pwm signals, and speed adjusting module exports different linear voltages to control blower speed, when Air-Conditioning Control Panel output
When the positive dutycycle of pwm control signal is bigger, speed adjusting module output voltage is smaller, linear in order to meet speed adjusting module output, sharp
Differential amplification is done with operational amplifier sampling air blower both end voltage, it is then related to the control signal treated in speed adjusting module
Connection, do integral operation using operational amplifier, and the main MOSFET grids of output voltage control meet speed adjusting module output voltage
The linearity；
Then air blower operating current is gathered by current divider (sampling resistor) and is converted to voltage signal, using operation amplifier
Device does integral operation output voltage to control from MOSFET, so as to by air blower operating current share 12 realize flowing；
Air blower speed adjusting module band current limiting and rotation-clogging protection of the invention, air blower operating current is gathered by current divider
Then voltage signal is changed, contrasting integration with operational amplifier usually exports high level, when load (air blower) becomes big or stall
When operational amplifier upset output high level be changed into low level so as to drag down main MOSFET grid voltages to reduce speed adjusting module
Output, burns out when protecting air blower not by high current or stall.
Also there is temperature protection function：By temperature sensor (thermistor), resistance value also can at different ambient temperatures
Change therewith, be connected with thermistor with reference voltage series resistance using voltage divider principle, realize partial pressure, when with environment temperature
Voltage after the liter high partial pressures of degree diminishes, and then compares the voltage after partial pressure and reference voltage and ought be less than using operational amplifier
Operational amplifier becomes low potential from the high potential upset of output during reference voltage, and main MOSFET grid voltages are dragged down completely, this
When speed adjusting module without output, realize temperature protection.
Air blower speed adjusting module device of the invention, its advantage shows：Adjusted using PWM, it is non-most in air blower
Under conditions of big shelves, by adjusting effective voltage value, itself does not consume electric energy to speed adjusting module, so as to play the mesh of energy-conservation fuel-economizing
's.
Brief description of the drawings
Fig. 1 is the structural representation of air blower speed adjusting module device of the invention.
Fig. 2 is the A-4 direction views in Fig. 1.
Fig. 3 is the electrical schematic diagram of speed adjusting module.
Fig. 4 is control input-output characteristics figure.
Specific embodiment
To further describe the present invention, the present invention is described in further detail with reference to the accompanying drawings and examples, but simultaneously
Therefore within the scope of embodiments not limited the present invention to.
Refer to a kind of air blower speed adjusting module device shown in Fig. 1 and 2, including shell 2, the bottom peace of the shell 2
Equipped with fin 4, encapsulated by foam-rubber cushion 3 between the top of fin 4 and the bottom interior wall of shell 2.The top of the shell 2
Wire harness slot is provided with, the inserted sheet 1 being placed in wire harness slot is connected with the pcb board being placed in inside shell 2.
Also referring to Fig. 3 and Fig. 4, wherein, V_Batt connects positive source, and PWM-In connects control signal, and Ground connects electricity
Source negative pole (GND) ,-Umot connects air blower negative pole.
Air blower speed adjusting module device of the invention, controls to adjust particular by Air-Conditioning Control Panel output pwm signal
Fast module, just had in speed adjusting module after pwm signal Vcc voltage and powered to internal discrete device when outputing, by changing
Become Air-Conditioning Control Panel and export different pwm signals, speed adjusting module exports different linear voltages to control blower speed, works as air-conditioning
When the control panel output positive dutycycle of pwm control signal is bigger, speed adjusting module output voltage is smaller, defeated in order to meet speed adjusting module
Go out it is linear, using operational amplifier sampling air blower both end voltage do differential amplification, then with speed adjusting module in treat
Control signal is associated, do integral operation using operational amplifier, and the main MOSFET grids of output voltage control meet speed governing
The linearity of module output voltage.
Specifically formula is：Air blower both end voltage=PWM-IN*Vz* multiplication factors.Wherein, Vz：Inside speed adjusting module
The reference voltage of setting.Multiplication factor：Operational amplifier sampling air blower both end voltage does differential amplification.
Then air blower operating current is gathered by current divider (sampling resistor) and is converted to voltage signal, using operation amplifier
Device does integral operation output voltage to control from MOSFET, so as to by air blower operating current share 12 realize flowing.
Air blower speed adjusting module band current limiting and rotation-clogging protection of the invention, air blower operating current is gathered by current divider
Then voltage signal is changed, contrasting integration with operational amplifier usually exports high level, when load (air blower) becomes big or stall
When operational amplifier upset output high level be changed into low level so as to drag down main MOSFET grid voltages to reduce speed adjusting module
Output, burns out when protecting air blower not by high current or stall.
Also there is temperature protection function：By temperature sensor (thermistor), resistance value also can at different ambient temperatures
Change therewith, be connected with thermistor with reference voltage series resistance using voltage divider principle, realize partial pressure, when with environment temperature
Voltage after the liter high partial pressures of degree diminishes, and then compares the voltage after partial pressure and reference voltage and ought be less than using operational amplifier
Operational amplifier becomes low potential from the high potential upset of output during reference voltage, and main MOSFET grid voltages are dragged down completely, this
When speed adjusting module without output, realize temperature protection.
Above content is only to design example and explanation of the invention, affiliated those skilled in the art
Various modifications or supplement are made to described specific embodiment or is substituted using similar mode, without departing from invention
Design or surmount scope defined in the claims, protection scope of the present invention all should be belonged to.
Claims (1)
1. a kind of speed regulating method of air blower speed adjusting module device, it is characterised in that：PWM is exported by Air-Conditioning Control Panel to control
Signal controls speed adjusting module, just has Vcc voltage to internal deviding device in speed adjusting module after output pwm control signal
Part is powered, and different pwm control signals are exported by changing Air-Conditioning Control Panel, and speed adjusting module exports different linear voltages to control
Blower speed, when the Air-Conditioning Control Panel output positive dutycycle of pwm control signal is bigger, speed adjusting module output voltage is smaller,
It is linear in order to meet speed adjusting module output, do differential amplification, Ran Houyu using operational amplifier sampling air blower both end voltage
The pwm control signal treated in speed adjusting module is associated, and integral operation, output voltage control master are done using operational amplifier
MOSFET grids meet the linearity of speed adjusting module output voltage；
Then air blower operating current is gathered by current divider and is converted to voltage signal, it is defeated to do integral operation using operational amplifier
Go out voltage to control from MOSFET, so as to by air blower operating current share 12 realize flowing；
Air blower operating current is gathered by current divider and then voltage signal is changed, contrasting integration with operational amplifier usually exports
High level, when load becomes big or stall, the high level of operational amplifier upset output is changed into low level so as to drag down main MOSFET
Grid voltage come reduce speed adjusting module output, burnt out when protecting air blower not by high current or stall；
By the thermistor of temperature sensor, resistance value can also change therewith at different ambient temperatures, be used using voltage divider principle
Reference voltage series resistance is connected with thermistor again, realizes partial pressure, with the rising of environment temperature, the temperature-sensitive of temperature sensor
The resistance of resistance diminishes, and the partial pressure of temperature sensor diminishes, then using operational amplifier that the voltage after partial pressure and benchmark is electric
Pressure ratio becomes low potential to operational amplifier when less than reference voltage from the high potential upset of output, by main MOSFET grid voltages
Drag down completely, now speed adjusting module realizes temperature protection without output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510505325.XA CN105003455B (en) | 2015-08-17 | 2015-08-17 | Air blower speed adjusting module device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510505325.XA CN105003455B (en) | 2015-08-17 | 2015-08-17 | Air blower speed adjusting module device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105003455A CN105003455A (en) | 2015-10-28 |
| CN105003455B true CN105003455B (en) | 2017-07-07 |
Family
ID=54376267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510505325.XA Expired - Fee Related CN105003455B (en) | 2015-08-17 | 2015-08-17 | Air blower speed adjusting module device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105003455B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555772B (en) * | 2016-10-27 | 2019-08-13 | 武汉奥泽电子有限公司 | For blower for vehicle air conditioning LPM speed adjusting module |
| CN112874260A (en) * | 2021-01-22 | 2021-06-01 | 湖北开特汽车电子电器系统股份有限公司 | Speed regulation method, storage medium, device and system of automobile air conditioner blower |
| CN114087224A (en) * | 2021-11-18 | 2022-02-25 | 武汉奥泽电子有限公司 | Automobile air conditioner blower EFC device, system and air conditioner |
| CN118041135A (en) * | 2024-04-15 | 2024-05-14 | 上海奉吉汽车电器有限公司 | LPM motor speed adjusting device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4444810A1 (en) * | 1994-12-15 | 1996-06-20 | Eberspaecher J | Control circuit for a blower drive motor |
| US7029239B2 (en) * | 2003-05-19 | 2006-04-18 | Standard Microsystems Corporation | Piecewise linear control of the duty cycle of a pulse width modulated signal |
| CN200941594Y (en) * | 2006-06-15 | 2007-08-29 | 武汉奥泽电子有限公司 | Stageless governing controller of autocar air conditioning fan |
| CN201297267Y (en) * | 2008-11-25 | 2009-08-26 | 上海航天汽车机电股份有限公司 | Control device for blower of automobile air conditioner |
| CN201547001U (en) * | 2009-12-04 | 2010-08-11 | 上海德尔福汽车空调系统有限公司 | Automobile air conditioner direct current brush blast blower wind speed actuating device |
| CN201836089U (en) * | 2010-11-09 | 2011-05-18 | 郑州市锦飞汽车电气系统有限公司 | Multifunctional air-conditioning air speed adjusting module |
| CN202082083U (en) * | 2011-05-18 | 2011-12-21 | 安徽江淮松芝空调有限公司 | Air volume control device for automotive air conditioning blower |
| CN202149050U (en) * | 2011-06-27 | 2012-02-22 | 武汉奥泽电子有限公司 | Speed regulation device for air blower of automotive air conditioner |
| CN103089683A (en) * | 2013-02-22 | 2013-05-08 | 四川泛华电器有限责任公司 | Stepless speed regulation system of automobile air condition air blower |
| CN103738139B (en) * | 2013-12-21 | 2016-03-16 | 博耐尔汽车电气系统有限公司 | A kind of automobile air-container air quantity control system of overvoltage protection |
-
2015
- 2015-08-17 CN CN201510505325.XA patent/CN105003455B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105003455A (en) | 2015-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105003455B (en) | Air blower speed adjusting module device | |
| CN103790847A (en) | Fan control system and method of electric vehicle | |
| CN102287890A (en) | Externally controlled variable-discharge capacity compressor air conditioner controller | |
| CN207006475U (en) | A kind of draught fan automatic control system | |
| CN202133066U (en) | Central air-conditioning control system | |
| CN203747171U (en) | Temperature control plug board | |
| CN204084713U (en) | A kind of double-condenser Temperature and Humidity Control air conditioner | |
| CN207485712U (en) | A kind of automobile air-conditioner blower speed regulation module overvoltage crowbar | |
| CN110370887B (en) | Vehicle-mounted air conditioner control method and control device | |
| CN220422062U (en) | PTC heating control assembly for automobile air conditioner | |
| CN102967034B (en) | Vector frequency control method of VAV (variable air volume) system | |
| CN209441142U (en) | Electric automobile air conditioner control system | |
| CN106555772B (en) | For blower for vehicle air conditioning LPM speed adjusting module | |
| CN202975711U (en) | Automatic regulation and control system for temperature, humidity and dust thickness of street lamp power distribution cabinet | |
| CN204179837U (en) | A kind of heat abstractor of glass lifter motor | |
| CN203657832U (en) | Voltage output type humiture sensor | |
| CN201944986U (en) | Air conditioner remote controller capable of being controlled according to temperature | |
| CN205015755U (en) | Transformer power cabinet intelligence temperature control device is joined in marriage to open air | |
| CN204115151U (en) | Air condition with camion control system | |
| CN205417082U (en) | Complete automatically controlled air conditioning system | |
| CN206874523U (en) | A kind of speed-adjusting and control system of pipeline fan | |
| CN206012347U (en) | A kind of integrated electric accessory system of new-energy automobile | |
| CN203130573U (en) | Electrodeless speed regulating system of automobile air conditioner air blower | |
| CN205427731U (en) | Computer network emergency control case | |
| CN203770182U (en) | Fan control system of electric automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20210817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |