CN102710082A - Blower motor of automobile air conditioner - Google Patents
Blower motor of automobile air conditioner Download PDFInfo
- Publication number
- CN102710082A CN102710082A CN2012100638333A CN201210063833A CN102710082A CN 102710082 A CN102710082 A CN 102710082A CN 2012100638333 A CN2012100638333 A CN 2012100638333A CN 201210063833 A CN201210063833 A CN 201210063833A CN 102710082 A CN102710082 A CN 102710082A
- Authority
- CN
- China
- Prior art keywords
- motor
- ecu
- blower motor
- automobile
- rotor
- 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.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000001012 protector Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Images
Abstract
The invention discloses a blower motor of an automobile air conditioner. The blower motor comprises a motor stator, a motor rotor, a motor shaft, a motor casing, a carbon brush, a commutator, an automobile electronic control unit (ECU), wherein an output end of the automobile ECU is connected with a relay control circuit of the blower motor, one end of the motor casing is provided with motor locked-rotor signal collecting module, and an output end of the motor locked-rotor signal collecting module is connected with an input end of the automobile ECU. According to the structure and the method, the blower motor has the advantages that the change speed of the rotor speed is detected to be fast, the accuracy is high, once the rotor is locked, pulse signals are sent for warning, and the safety technical grades of an air conditioning system and the overall automobile are promoted; and the principle is simple, the blower motor is easy to implement technically, and update and upgrade of vehicles having brush motors can be performed simultaneously.
Description
Technical field
The present invention relates to the automobile air conditioning technology field, particularly a kind of air conditioning for automobiles blower motor.
Background technology
The air blast that automotive air-conditioning system is used generally all adopts the pattern of DC brush, and except few part luxury car uses brshless DC motor, present most of vehicle also has been to use the brush DC motor.These have the brush DC motor overwhelming majority all not have rotation-clogging protection.Do not protect with the fuse inside general outer the electrical equipment box of motor of rotation-clogging protection; This mode needs operating current to reach certain value could break off insurance; Sometimes it is very serious that the motor feels hot; Insurance is cut off yet, causes burn-down of electric motor easily, and is serious even can take place that car load burns and casualties.And its principle of motor of band protector also is to utilize protector to detect the motor temperature value; Could detect behind the certain hour that needs that the motor feels hot; There are much relations in the installation site of while and protector; Be placed on the motor inner position unreasonable can influence the temperature detection accuracy, the temperature of motor has error during to accurate detection stall, causes misoperation easily.
Summary of the invention
Technical problem to be solved by this invention is to the deficiency of prior art, to provide a kind of rotor stall that prevents to cause the air conditioning for automobiles blower motor that the motor feels hot seriously burns.
For solving the problems of the technologies described above; Technical scheme of the present invention is: a kind of air conditioning for automobiles blower motor; Comprise motor stator, rotor, motor shaft, electric machine casing, carbon brush, commutator, automobile ECU; The output of described automobile ECU is connected with the blower motor control relay circuit, and an end of described electric machine casing is provided with the motor rotation blockage signal acquisition module, and the output of described motor rotation blockage signal acquisition module is connected with the input of automobile ECU.
Described motor rotation blockage signal acquisition module adopts Hall element.
Described Hall element is connected with automobile ECU through transfer wire.
Described Hall element is arranged on the end of electric machine casing away from the motor shaft external part.
Described automobile ECU is used for the stall signal according to the air-conditioning blower motor of Hall element collection, handles back output signal control relay and cuts off blower power supply.
Described Hall element adopts Hall switch sensor.
The present invention adopts said structure; Have the following advantages: 1, Hall element position transducer detection rotor velocity variations speed is fast, precision is high; Can send pulse signal and remind in case the rotor stall occurs, help promoting the safe practice grade of air-conditioning system and car load; 2, principle is simple, is easy to above the technology realize.Can upgrade upgrading at the vehicle that uses brush motor simultaneously; 3, the lifting variation is little above the cost, and with respect to the expensive maintenance cost that burn-down of electric motor brings, the brush motor of use band rotation-clogging protection is totally top can to help car load factory to practice thrift the after-sales service cost.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation;
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a logical construction block diagram of the present invention;
Fig. 3 is the circuit structure diagram of Hall element among the present invention;
In Fig. 1～Fig. 2,1, motor stator; 2, rotor; 3, motor shaft; 4, electric machine casing; 5, carbon brush; 6, commutator; 7, control relay circuit; 8, motor rotation blockage signal acquisition module.
Embodiment
Like Fig. 1～a kind of air conditioning for automobiles blower motor shown in Figure 3; Comprise motor stator 1, rotor 2, motor shaft 3, electric machine casing 4, carbon brush 5, commutator 6, automobile ECU; The output of automobile ECU is connected with blower motor control relay circuit 7; One end of electric machine casing 4 is provided with motor rotation blockage signal acquisition module 8, and the output of motor rotation blockage signal acquisition module 8 is connected with the input of automobile ECU.Motor rotation blockage signal acquisition module 8 adopts Hall element.Hall element is connected with automobile ECU through transfer wire.Hall element is arranged on the end of electric machine casing 4 away from motor shaft 3 external parts.Automobile ECU is used for the stall signal according to the air-conditioning blower motor of Hall element collection, handles back output signal control relay and cuts off blower power supply.Hall element adopts Hall switch sensor.
Technology of the present invention is to utilize Hall element that the operation of rotor is detected, and sends a set of pulses coded signal during normal operation; Send an other set of pulses coding prompting rotor during stall and stopped, in time send the power supply that signal removes to break off through relay motor.Emphasis of the present invention is to be to utilize a Hall element to detect the velocity variations of brush motor rotor running; The pulse signal that Hall element can send a kind of high density waveform during normal the operation is to ECU; In case rotor is because a variety of causes stops operating, this moment, hall detection component can send the impulse waveform of a kind of waveform than broad, and this waveform representes that stall has appearred in motor; ECU can be according to the signal that receives; Send the air blast control relay circuit that car load nose cabin electrical equipment box the inside is given in instruction after detecting judgement, cut off the blower power supply loop, motor is protected; Thereby prevent because the rotor stall causes electric current in the stator coil sharply to rise makes that the motor feels hot seriously and at last burns, serious even can take place that car load burns and casualties.
Hall element can be contained in an end of electric machine casing, as long as can be near rotor rotated, distance is requirements≤2mm generally, if distance big can influence the accurate of detection waveform, can be contained in a relative other end with motor shaft extension end as far as possible.Utilize the wire harness of A/C evaporator that detection chip is connected to car load circuit the inside; Holding wire can be directly connected to the ECU of air-conditioning or be connected to car load ECU through the car load wire harness again during concrete the realization; These two kinds of control modes can, specifically adopt any mode can be according to actual conditions, when not having unnecessary interface such as air-conditioner ECU; Being directly connected to car load ECU with regard to employing controls; The Hall chip lead-out terminal generally has three pins (power supply,, detection signal), and when detection signal was transferred to ECU, the software program through the ECU the inside detected judgement; In case receive the motor rotation blockage signal; ECU will send the relay control terminal (this function is the function that former car all has, and all cars all are to adopt ECU can control the function of air blast relay at present) that car load electrical equipment box the inside is given in instruction, and this Control Software is revised in original ECU software function the inside and can or be programmed in car load ECU program the inside when newly developed.The relay contact of the electrical equipment box the inside control air blast running of car load breaks off the power supply that just can cut off air blast; Do not burn motor thereby can sharply not rise in the time of can protecting the air conditioner blower stall, can avoid causing simultaneously the fire of car load because of the very big temperature of electric current.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; Or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (6)
1. air conditioning for automobiles blower motor; Comprise motor stator (1), rotor (2), motor shaft (3), electric machine casing (4), carbon brush (5), commutator (6), automobile (ECU); The output of described automobile (ECU) is connected with blower motor control relay circuit (7); It is characterized in that: an end of described electric machine casing (4) is provided with motor rotation blockage signal acquisition module (8), and the output of described motor rotation blockage signal acquisition module (8) is connected with the input of automobile (ECU).
2. a kind of air conditioning for automobiles blower motor according to claim 1 is characterized in that: described motor rotation blockage signal acquisition module (8) adopts Hall element.
3. a kind of air conditioning for automobiles blower motor according to claim 2 is characterized in that: described Hall element is connected with automobile (ECU) through transfer wire.
4. a kind of air conditioning for automobiles blower motor according to claim 2 is characterized in that: described Hall element is arranged on the end of electric machine casing (4) away from motor shaft (3) external part.
5. a kind of air conditioning for automobiles blower motor according to claim 1 is characterized in that: described automobile (ECU), be used for stall signal according to the air-conditioning blower motor of Hall element collection, and handle back output signal control relay and cut off blower power supply.
6. a kind of air conditioning for automobiles blower motor according to claim 1 is characterized in that: described Hall element adopts Hall switch sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100638333A CN102710082A (en) | 2012-03-12 | 2012-03-12 | Blower motor of automobile air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100638333A CN102710082A (en) | 2012-03-12 | 2012-03-12 | Blower motor of automobile air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102710082A true CN102710082A (en) | 2012-10-03 |
Family
ID=46902691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100638333A Pending CN102710082A (en) | 2012-03-12 | 2012-03-12 | Blower motor of automobile air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102710082A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821792A (en) * | 2006-03-20 | 2006-08-23 | 钟奋强 | Method for detecting paper shredder blocking and rotation and paper shredder having blocking and rotation detector |
| JP2008263733A (en) * | 2007-04-12 | 2008-10-30 | Rohm Co Ltd | Motor driving device, lock protection method, and cooling device using motor driving device |
| CN101527538A (en) * | 2009-04-10 | 2009-09-09 | 宁波君禾泵业有限公司 | Water pump motor control device |
| CN102350958A (en) * | 2011-06-30 | 2012-02-15 | 奇瑞汽车股份有限公司 | Motor locked-rotor protecting method of electric car electric driving system |
-
2012
- 2012-03-12 CN CN2012100638333A patent/CN102710082A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821792A (en) * | 2006-03-20 | 2006-08-23 | 钟奋强 | Method for detecting paper shredder blocking and rotation and paper shredder having blocking and rotation detector |
| JP2008263733A (en) * | 2007-04-12 | 2008-10-30 | Rohm Co Ltd | Motor driving device, lock protection method, and cooling device using motor driving device |
| CN101527538A (en) * | 2009-04-10 | 2009-09-09 | 宁波君禾泵业有限公司 | Water pump motor control device |
| CN102350958A (en) * | 2011-06-30 | 2012-02-15 | 奇瑞汽车股份有限公司 | Motor locked-rotor protecting method of electric car electric driving system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102904215B (en) | A kind of motor overheat protection method and device | |
| KR101534914B1 (en) | Control device and method for cooling battery of vehicle | |
| EP2701300B1 (en) | Motor control system, motor control device and brushless motor | |
| JP6050597B2 (en) | Control system for vehicle wiper motor | |
| JP5307685B2 (en) | Control device and control method for plug-in charging vehicle | |
| CN101776468B (en) | Automobile combined meter having automobile electric control diagnosis function and diagnosis method thereof | |
| JP4987247B2 (en) | Rotating electrical machine control device and starting method thereof | |
| CN111016575A (en) | Driving protection control method of parking air conditioner | |
| EP3075050B1 (en) | Traction voltage system in a vehicle and method for controlling such a system | |
| CN103744344A (en) | Two-motor drive control system of concrete spraying vehicle | |
| CN104247197A (en) | Protection device for electricity supply circuit | |
| CN105799533A (en) | Method and device for controlling electric vehicle safety | |
| CN103867369A (en) | Vehicle starting protecting system and control method thereof | |
| CN104272549A (en) | Protection device for electricity supply circuit | |
| CN202644631U (en) | Automatic warming-up and overheating protection device of excavator | |
| CN205100742U (en) | Sunroof door window automatic closing device | |
| CN202275119U (en) | Electronic and electrical performance testing system for motor vehicle | |
| CN103986379A (en) | Driving circuiting, driving chip and driving method of single-chip microcomputer and stepping motor | |
| CN102710082A (en) | Blower motor of automobile air conditioner | |
| CN201824946U (en) | Auxiliary device of automotive steering light based on control of single-chip microcomputer | |
| CN101554863A (en) | Control system of electric automobile | |
| US9278621B2 (en) | Vehicular control system and its operating method | |
| CN103496369A (en) | Power protection system | |
| JP4614820B2 (en) | Rotating electrical machine control device | |
| CN102343820B (en) | Method and apparatus for operating electric drive apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121003 |