CN204517707U - A kind of PWM alignment circuit of cooling fan of engine motor - Google Patents
A kind of PWM alignment circuit of cooling fan of engine motor Download PDFInfo
- Publication number
- CN204517707U CN204517707U CN201520213195.8U CN201520213195U CN204517707U CN 204517707 U CN204517707 U CN 204517707U CN 201520213195 U CN201520213195 U CN 201520213195U CN 204517707 U CN204517707 U CN 204517707U
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- China
- Prior art keywords
- circuit
- cooling fan
- controller
- pwm alignment
- alignment circuit
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of PWM alignment circuit of cooling fan of engine motor, be connected between Engine ECU and cooling fan motor, comprise integrated PWM alignment circuit and drive circuit; The integrated input of PWM alignment circuit is connected with the output of Engine ECU, and the output of integrated PWM alignment circuit is connected with drive circuit, and drive circuit is connected with cooling fan motor; Integrated PWM alignment circuit comprises controller, drive IC and power supply IC; Power supply IC is connected with controller, and drive IC is connected between controller and drive circuit.Main to controller, drive IC, power supply IC etc. IC is all integrated in one piece of control chip by the utility model; make it possess various defencive function, decrease circuit arrangement, make integral module miniaturized; can directly be integrated into cooling fan motor inside, alleviate overall weight.
Description
Technical field
The utility model relates to automotive direct current machine and drives and speed adjusting technique field, is specifically related to a kind of PWM alignment circuit of cooling fan of engine motor.
Background technology
At present, the speed governing of cooling fan of engine motor is rheostatic speed regulation, only has high speed, low speed two grades, can not carry out stability contorting, cannot ensure engine steady operation at a suitable temperature, cause energy consumption higher engine water temperature.Also there is the cooling fan motor adopting PWM speed governing in prior art, its scheme adopting original paper discrete, engine MCU and drive circuit separated, or overlapped by circuit, increase a lot of interface, cause the unsteadiness of circuit, and motor usually single channel control, the terminal voltage of two cooling fan motors is identical, when two cooling fan motor similar nature, when can not independently control, the rotating speed of two cooling fan motors can be relatively, so easy formation resonance, causes the discontented of user.
Summary of the invention
Goal of the invention: for the deficiency of current cooling fan motor speed adjusting performance, the utility model provides a kind of PWM alignment circuit of cooling fan of engine motor, adopts integrated chip, arranges two-way drive circuit, simplify circuit arrangement, improve the efficiency of cooling fan motor.
Technical scheme: the PWM alignment circuit of cooling fan of engine motor described in the utility model, is connected between Engine ECU and cooling fan motor, it is characterized in that: comprise integrated PWM alignment circuit and drive circuit; The input of described integrated PWM alignment circuit is connected with the output of described Engine ECU, and the output of described integrated PWM alignment circuit is connected with described drive circuit, and described drive circuit is connected with described cooling fan motor; Described integrated PWM alignment circuit comprises controller, drive IC and power supply IC; Power supply IC is connected with controller, and drive IC is connected between controller and described drive circuit.By drive IC, power supply IC and controller being integrated, decreasing circuit arrangement, reducing PCB cost.
Described drive circuit is two-way, is connected between described integrated PWM alignment circuit and described cooling fan motor.Two-way is adopted to carry out independent control, can according to the signal of Engine ECU, controlled cooling model fan electromotor carries out the running of different rotating speeds, even a stall, a High Rotation Speed.
Also sample circuit is provided with between described controller and described drive circuit.
Described drive circuit is metal-oxide-semiconductor.Adopt metal-oxide-semiconductor, the autgmentability of drive circuit is increased greatly, as long as change the power level of metal-oxide-semiconductor, just can the larger motor of driving power, even expand in the electric system of 24V.
Described controller is also connected with EMC and suppresses circuit.EMC suppresses circuit can play a protective role to controller, improves the antijamming capability of controller.
Described controller is also provided with communication interface.Communication interface is set, makes controller can realize Long-distance Control and transmission.
Beneficial effect: compared with prior art, advantage of the present utility model: adopt the utility model, can independently control two-way cooling fan motor, ensures that engine combustion temperatures controls more stable, improves fuel utilization ratio, reach energy-conservation effect.Main to controller, drive IC, power supply IC etc. IC is all integrated in one piece of control chip, makes it possess various defencive function, decrease circuit arrangement, make integral module miniaturized, directly can be integrated into cooling fan motor inside, alleviate overall weight.Adopt the drive circuit of metal-oxide-semiconductor can be external on this control chip simultaneously, because the power of cooling fan motor is different, by selecting the metal-oxide-semiconductor of different size, the demand of different capacity cooling fan motor can be used, enhancing the extensibility of circuit.
Accompanying drawing explanation
Fig. 1 is systematic schematic diagram of the present utility model;
Fig. 2 is the utility model internal structure schematic diagram.
Embodiment
Below by accompanying drawing, technical solutions of the utility model are described in detail.
embodiment 1:the PWM alignment circuit of cooling fan of engine motor as depicted in figs. 1 and 2, comprises integrated PWM alignment circuit, metal-oxide-semiconductor one, metal-oxide-semiconductor two, sample circuit and EMC and suppresses circuit; Integrated PWM alignment circuit comprises controller, drive IC and power supply IC; Power supply IC is connected with controller, and drive IC is connected between controller and metal-oxide-semiconductor one, metal-oxide-semiconductor two.The input of controller is connected with the output of Engine ECU, and the output of controller is connected with metal-oxide-semiconductor one, metal-oxide-semiconductor two respectively through drive IC, and metal-oxide-semiconductor one and metal-oxide-semiconductor two export the voltage signal after modulation decompress(ion) to two-way cooling fan motor M; Sample circuit is connected to controller and between metal-oxide-semiconductor one and metal-oxide-semiconductor two, EMC suppresses circuit to be connected with controller.Power supply IC provides power supply for controller, and sample circuit and EMC suppress circuit to be that controller plays a protective role.Controller is also provided with communication interface.
As mentioned above, although represented with reference to specific preferred embodiment and described the utility model, it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model not departing from claims definition, various change can be made in the form and details to it.
Claims (6)
1. a PWM alignment circuit for cooling fan of engine motor, is connected between Engine ECU and cooling fan motor, it is characterized in that: comprise integrated PWM alignment circuit and drive circuit; The input of described integrated PWM alignment circuit is connected with the output of described Engine ECU, and the output of described integrated PWM alignment circuit is connected with described drive circuit, and described drive circuit is connected with described cooling fan motor; Described integrated PWM alignment circuit comprises controller, drive IC and power supply IC; Power supply IC is connected with controller, and drive IC is connected between controller and described drive circuit.
2. the PWM alignment circuit of cooling fan of engine motor according to claim 1, is characterized in that: described drive circuit is two-way, is connected between described integrated PWM alignment circuit and described cooling fan motor.
3. the PWM alignment circuit of cooling fan of engine motor according to claim 2, is characterized in that: be also provided with sample circuit between described controller and described drive circuit.
4., according to the PWM alignment circuit of the arbitrary described cooling fan of engine motor of claims 1 to 3, it is characterized in that: described drive circuit is metal-oxide-semiconductor.
5. the PWM alignment circuit of cooling fan of engine motor according to claim 1, is characterized in that: described controller is also connected with EMC and suppresses circuit.
6. the PWM alignment circuit of cooling fan of engine motor according to claim 1, is characterized in that: described controller is also provided with communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520213195.8U CN204517707U (en) | 2015-04-09 | 2015-04-09 | A kind of PWM alignment circuit of cooling fan of engine motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520213195.8U CN204517707U (en) | 2015-04-09 | 2015-04-09 | A kind of PWM alignment circuit of cooling fan of engine motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204517707U true CN204517707U (en) | 2015-07-29 |
Family
ID=53715635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520213195.8U Expired - Fee Related CN204517707U (en) | 2015-04-09 | 2015-04-09 | A kind of PWM alignment circuit of cooling fan of engine motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204517707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019100893A1 (en) * | 2017-11-27 | 2019-05-31 | 深圳市道通智能航空技术有限公司 | Electronic speed control, electric motor control system and unmanned aerial vehicle |
-
2015
- 2015-04-09 CN CN201520213195.8U patent/CN204517707U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019100893A1 (en) * | 2017-11-27 | 2019-05-31 | 深圳市道通智能航空技术有限公司 | Electronic speed control, electric motor control system and unmanned aerial vehicle |
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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: 20150729 Termination date: 20180409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |