CN201297267Y - Control device for blower of automobile air conditioner - Google Patents
Control device for blower of automobile air conditioner Download PDFInfo
- Publication number
- CN201297267Y CN201297267Y CNU2008201559323U CN200820155932U CN201297267Y CN 201297267 Y CN201297267 Y CN 201297267Y CN U2008201559323 U CNU2008201559323 U CN U2008201559323U CN 200820155932 U CN200820155932 U CN 200820155932U CN 201297267 Y CN201297267 Y CN 201297267Y
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- China
- Prior art keywords
- blower
- unit
- air conditioning
- vehicle air
- input end
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- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model discloses a control device for the blower of an automobile air conditioner, and relates to the field of automotive electronic products. The device comprises a casing, a control circuit board, a bracket and a heat dissipation component, wherein, two grooves are formed at the left part and the right part on the top of the casing; the left groove consists of a contact point Pin1, a contact point Pin2, a contact point Pin3, a contact point Pin4, and a contact point Pin5 which are used to be connected with the automobile power supply and the air-conditioning controller respectively; the right groove comprises a contact point Pin6 and a contact point Pin7 which are used to be connected with the motor; and the control circuit is formed by a signal conversion unit U1, a control unit U2, a blower drive unit U3, a power supply switching unit U4, a communication unit U5, a temperature protection unit U6 and a current protection unit U7. As a consequence of the software program written within the U2, the motor is permanently based on the function which specifies that Umost equals f (d), with d representing the duty cycle of pulse width modulation signals, thereby achieving stepless speed regulation.
Description
Technical field
The utility model relates to the automobile electronics field, is specifically related to a kind of control gear of full automatic vehicle air conditioner blower.
Background technique
Now, the air-conditioning system of automobile always just can be opened behind engine start, under weather in sweltering heat, this will cause the too high while of temperature in vehicle stop state is got off, the car air conditioner blower fan is under the certain situation of supply voltage with speed regulator, by sealing in the current-limiting resistance mode, change car air conditioner blower fan both end voltage, thereby change the rotating speed and the air quantity of blower fan.Circuit series connection dividing potential drop mode commonly used has two kinds of passive type and active switch formulas.The former utilizes electric resistance partial pressure, is characterized in simple, and is cheap, but can not stepping work, can not be adjustable continuously, be mainly used on the early stage car air conditioner fan speed regulation device; The The latter Darlington transistor works on off state; be characterized in more preceding a kind of being significantly increased of efficient; but heating value is big; as Chinese utility model patent " a kind of DC motor speed-regulating circuit arrangement of over-temperature protection "; patent No. ZL200620047794.8; this model utility relates to the alignment circuit device of direct current generator; technical problem to be solved provides a kind of dc motor speed regulating Electric actuator of over-temperature protection; circuit structure adopts Darlington transistor to work on off state, carries out motor speed adjusting.
The model utility content
The utility model purpose is the deficiency at the existence of blower for vehicle air conditioning prior art, improves speed efficiency, overcomes heat problems of too in the speed regulation process, proposes a kind of have intellectuality, high efficiency, the blower for vehicle air conditioning control gear of new energy.This device is made up of housing, control circuit board, support, heat-dissipating part.Wherein, support is fixed on the control circuit board, described housing, control circuit board, heat-dissipating part successively from top to bottom, closely connect by 4 buckles, and case top about a groove is respectively arranged; Described control circuit board is provided with 2 I/O interfaces with left and right sides groove relative position.Above-mentioned left groove comprises Pin1, Pin2, Pin3, Pin4, Pin5 contact, is respectively applied for power supply on vehicle and is connected with air-conditioner controller.Above-mentioned right groove comprises Pin6, Pin7 contact, is used for motor and connects.
Described control circuit is made up of signal conversion unit U1, control unit U2, blower fan driver element U3, power supply switching unit U4, communication unit U5, temperature protection unit U6, current protection unit U7.
Constituting a control signal change-over circuit by signal conversion unit U1, is the Pin4 of I/O interface by input end, is connected with the output terminal of pwm signal in the air-conditioning system; Be used to realize that control signal is converted to the 5V pwm signal.Its output terminal is connected with control unit U2.
Constitute a control logic circuit by control unit U2, receive output information, be connected with the input end of U3 by the internal logic processing from U1, U4, U5, U6, U7; Be used for the logic control of whole system.
Constituting a drive circuit by blower fan driver element U3, is the Pin6 of I/O interface by output terminal, is connected with the negative voltage input end of blower fan; Be used for blower.
Constituting a power supply switch circuit by power supply switching unit U4, is that Pin6, the Pin7 of I/O interface is connected respectively at the positive voltage input end of vehicle power, solar energy skylight power supply and blower fan by output terminal; Be used for the switching of power supply on vehicle and solar energy skylight power supply.
Constituting a communication circuit by communication unit U5, is the Pin3 of I/O interface by input end, is connected with the negative voltage input end of blower fan; Be used for host node between LIN communicate by letter.
Constituting a temperature protection circuit by temperature protection unit U6 is connected with U2; The temperature protection that is used for control circuit.
Constituting a current protecting circuit by current protection unit U7 is connected with U2; The current protection that is used for control circuit.
The utility model makes motor be based upon function U most=f (d) all the time by the software program of U2 internal composition, and d is the dutycycle of pulse-width signal, realizes stepless speed regulation.Simultaneously, utilize the solar energy skylight to provide power supply to make that this module is more energy-conservation, and the Lin bus network communication make this module can with the host node interaction, make that this module is more intelligent.
Description of drawings
Fig. 1 is a kind of blower for vehicle air conditioning controller of the utility model overall structure schematic representation.
Fig. 2 is a kind of blower for vehicle air conditioning controller circuit board of the utility model electrical block diagram.
Fig. 3 is a kind of blower for vehicle air conditioning controller shell of the utility model schematic representation
Embodiment
Fig. 1 is a kind of blower for vehicle air conditioning controller of the utility model overall structure schematic representation, represent form structure of the present utility model, comprise by housing, control circuit board, heat-dissipating part, there is support shown in the figure to be installed on the control circuit board, housing, control circuit board, heat-dissipating part are closely connected by 4 buckles successively from top to bottom; And a groove is arranged respectively about case top; Described control circuit board is provided with 2 I/O interfaces with left and right sides groove relative position and is embedded in the groove, is respectively left groove and comprises Pin1, Pin2, Pin3, Pin4, Pin5 contact, is used for power supply on vehicle and is connected with air-conditioner controller.Right groove comprises Pin6, Pin7 contact, is used for motor and connects.
Be that Fig. 2 is a kind of blower for vehicle air conditioning controller circuit board of the utility model electrical block diagram as shown, form by signal conversion unit U1, control unit U2, blower fan driver element U3, power supply switching unit U4, communication unit U5, temperature protection unit U6, current protection unit U7.
Signal conversion unit U1 constitutes a control signal change-over circuit, by input end is the Pin4 of I/O interface, being connected with the output terminal of pwm signal in the air-conditioning system, will be the standard P WM signal of 5V from the PWM pulse width modulated signal conversion of air-conditioning system, send into control unit U2.Its output terminal is connected with control unit U2.
Control unit U2 constitutes a control logic circuit, is connected with the input end of U3; Reception is responsible for the logic control of whole system from the output information of U1, U4, U5, U6, U7.By the software program of internal composition, make motor be based upon function U most=f (d) all the time, d is the dutycycle of pulse-width signal, realizes stepless speed regulation.
Blower fan driver element U3 constitutes a drive circuit, is the Pin6 of I/O interface by output terminal, is connected with the negative voltage input end of blower fan; It is according to the drive signal of control unit U2 output, inputs to 2 metal-oxide-semiconductors through power amplification circuit, recently produces different output by the duty that changes drive signal, makes motor be in different running statees, is used for blower.
Power supply switching unit U4 constitutes a power supply switch circuit, input end is connected with control unit U2, output terminal is that the positive voltage input end of the Pin7 blower fan of I/O interface is connected, and receiving simultaneously from output terminal is that Pin1, the Pin2 of I/O interface, the control signal of U2 input are switched vehicle power or solar energy skylight power supply through internal relay.
Communication unit U5 constitutes a communication circuit, mainly is the control receiving element of LIN communication, and the input end that it is characterized in that described communication unit U5 is the P3 pin of I/O interface.
Constituting a temperature protection circuit by temperature protection unit U6 is connected with U2; It is that it is enough little that thermistor becomes, thereby make that the sampled voltage of control unit U2 is low excessively when the radiator temperature of fan speed regulation module surpasses the maximum value that system allows, control unit U2 does not have drive signal output, blower fan stall and then enter guard mode.The temperature protection that is used for control circuit.
Constituting a current protecting circuit by current protection unit U7 is connected with U2; Be to become big when the sample rate current of taking from the U3 unit, and when having surpassed the lowest high-current value that systemic-function requires, the current potential of the reverse input end of U7 will raise, the output voltage of U7 diminishes so, promptly input to the voltage decreases of U2, make U2 no-output drive signal, blower fan stall and then open protective action; The current protection that is used for control circuit.
Fig. 3 is a kind of blower for vehicle air conditioning controller shell of the utility model schematic representation, among the figure further in the indication circuit each components and parts all be arranged on the circuit board, and the Pin1 of I/O mouth interface is direct and the positive pole of power supply on vehicle, Pin2 is connected with solar energy skylight power supply, Pin3 is connected with the input of LIN signal, and Pin4 is connected with pulse-width signal, Pin5 pin ground connection, Pin6 is connected with the negative voltage input end of motor, and Pin7 then is connected with the positive voltage input end of motor.
Claims (9)
1, a kind of control gear of blower for vehicle air conditioning is made up of housing, control circuit board, support, heat-dissipating part, it is characterized in that: support is fixed on the control circuit board; Housing, control circuit board, heat-dissipating part are successively from top to bottom, closely connect by 4 buckles, a groove is respectively arranged about case top, and left groove comprises Pin1, Pin2, Pin3, Pin4, Pin5 contact, is connected with air-conditioner controller respectively at power supply on vehicle; Right groove comprises that Pin6, Pin7 contact are connected with motor respectively.
2, the control gear of a kind of blower for vehicle air conditioning according to claim 1 is characterized in that: described control circuit board is made up of signal conversion unit U1, control unit U2, blower fan driver element U3, power supply switching unit U4, communication unit U5, temperature protection unit U6, current protection unit U7.
3, the control gear of a kind of blower for vehicle air conditioning according to claim 1 is characterized in that: described signal conversion unit U1 is the Pin4 of I/O interface by input end, is connected with the output terminal of pwm signal in the air-conditioning system; Its output terminal is connected with control unit U2.
4, the control gear of a kind of blower for vehicle air conditioning according to claim 1 is characterized in that: described control unit U2 inside is provided with software program, control circuit is based upon function U most=f (d) all the time, d is the dutycycle of pulse-width signal, is that the input end of the Pin4U3 of I/O interface is connected by input end.
5, the control gear of a kind of blower for vehicle air conditioning according to claim 1 is characterized in that: described blower fan driver element U3 is the Pin6 of I/O interface by output terminal, is connected with the negative voltage input end of blower fan.
6, the control gear of a kind of blower for vehicle air conditioning according to claim 1 is characterized in that: described power supply switching unit U4 is that Pin6, the Pin7 of I/O interface is connected respectively at the positive voltage input end of vehicle power, solar energy skylight power supply and blower fan by output terminal.
7, the control gear of a kind of blower for vehicle air conditioning according to claim 1 is characterized in that: described communication unit U5 is the Pin3 of I/O interface by input end, is connected with the negative voltage input end of blower fan.
8, the control gear of a kind of blower for vehicle air conditioning according to claim 1 is characterized in that: describedly be connected with U2 by temperature protection unit U6.
9, the control gear of a kind of blower for vehicle air conditioning according to claim 1 is characterized in that: describedly be connected with U2 by current protection unit U7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201559323U CN201297267Y (en) | 2008-11-25 | 2008-11-25 | Control device for blower of automobile air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201559323U CN201297267Y (en) | 2008-11-25 | 2008-11-25 | Control device for blower of automobile air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297267Y true CN201297267Y (en) | 2009-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201559323U Expired - Fee Related CN201297267Y (en) | 2008-11-25 | 2008-11-25 | Control device for blower of automobile air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201297267Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589084A (en) * | 2012-02-17 | 2012-07-18 | 广东美的电器股份有限公司 | Stepless speed regulation method for touch strip of air conditioner controller |
| CN105003455A (en) * | 2015-08-17 | 2015-10-28 | 安徽江淮松芝空调有限公司 | Blower speed governing module device |
| CN106054077A (en) * | 2016-07-08 | 2016-10-26 | 珠海格力电器股份有限公司 | Speed regulation voltage switching circuit and power panel |
| CN111585485A (en) * | 2020-06-11 | 2020-08-25 | 湖南汇远新能源科技有限公司 | DC motor stepless speed regulation controller capable of automatically identifying PWM signal and LIN communication signal |
| 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 |
-
2008
- 2008-11-25 CN CNU2008201559323U patent/CN201297267Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589084A (en) * | 2012-02-17 | 2012-07-18 | 广东美的电器股份有限公司 | Stepless speed regulation method for touch strip of air conditioner controller |
| CN102589084B (en) * | 2012-02-17 | 2014-01-01 | 美的集团股份有限公司 | Stepless speed regulation method for touch strip of air conditioner controller |
| CN105003455A (en) * | 2015-08-17 | 2015-10-28 | 安徽江淮松芝空调有限公司 | Blower speed governing module device |
| CN106054077A (en) * | 2016-07-08 | 2016-10-26 | 珠海格力电器股份有限公司 | Speed regulation voltage switching circuit and power panel |
| CN111585485A (en) * | 2020-06-11 | 2020-08-25 | 湖南汇远新能源科技有限公司 | DC motor stepless speed regulation controller capable of automatically identifying PWM signal and LIN communication signal |
| 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 |
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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: 20090826 Termination date: 20151125 |