CN219639084U - Electronic water pump controller - Google Patents
Electronic water pump controller Download PDFInfo
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- CN219639084U CN219639084U CN202321331195.9U CN202321331195U CN219639084U CN 219639084 U CN219639084 U CN 219639084U CN 202321331195 U CN202321331195 U CN 202321331195U CN 219639084 U CN219639084 U CN 219639084U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000005070 sampling Methods 0.000 claims abstract description 52
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 42
- 238000001514 detection method Methods 0.000 claims description 18
- 230000002441 reversible effect Effects 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 9
- 230000005501 phase interface Effects 0.000 claims 1
- 230000033228 biological regulation Effects 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
An electronic water pump controller belongs to the technical field of water pump controllers. The circuit comprises a control circuit, a signal receiving circuit, a driving circuit, an inverter circuit, a DC-DC voltage reducing circuit, a sampling circuit and a protection circuit which are integrated on a multilayer PCB board; the control circuit is respectively connected with the signal receiving circuit, the driving circuit, the DC-DC voltage reducing circuit, the protection circuit and the sampling circuit; the inverter circuit is respectively connected with the driving circuit, the current sampling circuit and the motor; the DC-DC voltage reduction circuit is connected with a power supply, and the protection circuit is connected with the power supply, the control circuit, the driving circuit and the motor. The utility model transmits a speed regulation signal through the signal receiving circuit, then the MCU receives the speed regulation signal, outputs a PWM signal to regulate the duty ratio to regulate the speed of the motor, controls the inverter circuit to commutate the motor through the driving circuit, and the power port protection circuit filters the power supply current and prevents surge current.
Description
Technical Field
The utility model belongs to the technical field of water pump controllers, and particularly relates to an electronic water pump controller.
Background
The electronic water pump of the automobile can be divided into a main water pump and an auxiliary water pump according to different functions of the electronic water pump. The main water pump is mainly used for cooling the engine, driving the cooling liquid to circularly dissipate heat, and is connected with a driving computer (ECU) to control the rotating speed so as to control the temperature of the motor to be in an optimal temperature state. In addition to the main water pump, the vehicle is equipped with water pumps for a turbocharger system, a warm air system, and a battery cooling system, which are called auxiliary water pumps. The control object of the electronic water pump controller is PMSM, and the electronic water pump controller has the advantages of simple structure, small volume and high efficiency and is widely applied to the field of automobiles. At present, the research and development of the automobile electronic water pump in the domestic market is still in an initial stage.
The permanent magnet synchronous motor is a core device of an electronic water pump, is a multiphase synchronous motor adopting permanent magnets as excitation, and has a stator structure basically the same as that of a common synchronous motor and an asynchronous induction motor. The rotor of a permanent magnet synchronous motor uses permanent magnets instead of field windings that generate the rotor field by injecting a direct current. The permanent magnet synchronous motor is distinguished from other types of motors mainly on a rotor, and the rotor of the permanent magnet motor mainly comprises a rotating shaft, a rotor iron core and permanent magnets. According to different arrangement modes of the permanent magnets on the rotor, the rotor structure can be roughly divided into three types, namely surface-mounted (convex-mounted), embedded and built-in, and the utility model is mainly applied to the surface-mounted permanent magnet synchronous motor.
At present, the China automobile industry is faced with industry upgrading, and energy conservation and emission reduction, light weight and electrification become mainstream trends. The electronic water pump is a key part of a new energy automobile, the market scale is continuously expanded in recent years, the electronic water pump is widely applied to a traditional fuel engine, is a necessary part of a turbo-charged engine, and is widely used in middle-high grade automobile types. The automobile water pump is a core component of an engine cooling system and is divided into a mechanical water pump and an electronic water pump according to a driving mode. The electronic water pump has the advantages of compact structure, convenient installation, flexible control, reliable performance, high efficiency, low power consumption and the like, and can gradually replace the traditional mechanical water pump in the transformation and upgrading of the automobile industry. In an internal combustion engine, the electronic water pump is superior to the traditional mechanical water pump in energy conservation, emission reduction and cooling performance. And with the development of braking energy recovery, the electricity utilization efficiency is gradually improved, and the problem of electric energy supply can be effectively solved, so that the application of the electronic water pump gradually becomes a mainstream trend.
Disclosure of Invention
Aiming at the requirements in the prior art, the utility model aims to provide an electronic water pump controller which adopts an integrated design, and through circuit design, fewer hardware settings such as a motor position sensor, an undervoltage protection circuit, an idle running protection circuit, a locked rotor protection circuit and the like are arranged, so that the space utilization rate is effectively improved, the power supply ripple wave and the surge current caused by harmonic waves can be reduced, and the safety of components is effectively protected.
The utility model provides the following technical scheme:
an electronic water pump controller comprises a control circuit, a signal receiving circuit, a driving circuit, an inverter circuit, a DC-DC voltage reducing circuit, a sampling circuit and a protection circuit which are integrated on a multilayer PCB board; the control circuit is respectively connected with the signal receiving circuit, the driving circuit, the DC-DC voltage reducing circuit, the protection circuit and the sampling circuit; the inverter circuit is respectively connected with the driving circuit, the current sampling circuit and the motor; the DC-DC voltage reduction circuit is connected with a power supply, and the protection circuit is connected with the power supply, the driving circuit and the motor.
Further, the sampling circuit comprises a bus voltage sampling circuit, a motor three-phase current sampling circuit for collecting the rotating speed and the rotating position of the motor, and a temperature sampling circuit for collecting the ambient temperature and the temperature of the PCB.
Further, the protection circuit comprises a power port protection circuit, a power reverse connection prevention protection circuit, an overcurrent protection circuit, a bus voltage detection circuit, an NTC temperature detection circuit, a short circuit protection circuit, an undervoltage protection circuit and a phase-failure protection circuit; each circuit is connected with the control chip, the power port protection circuit, the power reverse connection prevention protection circuit and the short circuit protection circuit are connected with the power supply, and the overcurrent protection circuit is also connected with the motor three-phase current sampling circuit.
Further, the control circuit comprises a control chip and an input voltage circuit, wherein the control chip is connected with the signal receiving circuit, the driving circuit, the overcurrent protection circuit, the three-phase motor current sampling circuit, the bus voltage sampling circuit and the temperature sampling circuit, and the input voltage circuit is connected with the bus voltage sampling circuit and the power supply.
Further, the inverter circuit is connected with the motor through a three-phase full-bridge inverter circuit, and the motor three-phase current sampling circuit is connected with the inverter circuit.
Further, the driving circuit comprises a driving chip and a plurality of driving circuit branches, the driving chip is respectively connected with the driving circuit branches and the control chip in the control circuit, and the driving circuit branches are respectively connected with corresponding MOS tubes on the three-phase full-bridge inverter circuit in the inverter circuit.
Further, the DC-DC voltage reducing circuit comprises a motor power supply circuit, a control chip power supply, a driving chip power supply, a sampling circuit power supply, a driving chip voltage reducing circuit and a control chip voltage reducing circuit.
Further, the signal receiving circuit is connected with the control chip through the signal receiving chip and is used for adjusting and controlling the rotating speed of the motor, the LIN communication circuit, the PWM signal receiving circuit and the CAN communication circuit are adopted, the LIN communication circuit comprises an LIN communication chip and an LIN communication circuit, the LIN communication chip and the LIN communication circuit are connected with the control chip, the PWM signal receiving circuit is connected with the control chip, the CAN communication circuit comprises a CAN communication chip and a CAN communication circuit, and the CAN communication chip and the CAN communication circuit are connected with the control chip.
Further, the three phases of the controller and the three-phase interface of the water pump motor are welded on the whole, namely, the three-phase interface of the controller is connected with the three-phase interface of the motor.
By adopting the technology, compared with the prior art, the utility model has the following beneficial effects:
1) According to the utility model, each circuit is integrated on one multi-layer PCB circuit board, so that the arrangement of a control board and a driving board is reduced, and the production cost is effectively saved; the automobile electronic water pump controller is connected with the three phases of the tail motor of the automobile water pump, so that the integration of the automobile electronic water pump is greatly improved, and the space utilization rate is improved; the use of components and parts is effectively reduced by adopting a protective mode of combining software and hardware, so that the cost and the use area of the PCB are saved;
2) In the utility model, three-phase current is obtained through the current sampling circuit, the rotor rotating speed and the rotor position are further estimated, and the installation space and the cost are saved by adopting the circuit structure without the position sensor;
3) The utility model uses various communication modes to control the rotating speed of the automobile electronic water pump, and expands the practicability of the automobile electronic water pump controller in different communication environments; the signal receiving circuit is used for acquiring different speed regulating signals and regulating the rotating speed, so that the flow of the electronic water pump is regulated to adapt to heat dissipation at different temperatures;
4) According to the utility model, the power supply port protection circuit can reduce power supply ripple waves and surge currents caused by harmonic waves, can adapt to a large-range voltage conversion, can absorb the surge currents caused by the power supply ripple waves and the harmonic waves caused by unstable power supply voltage, and further protect other precise devices on the controller from damage; the reverse connection prevention circuit of the power supply can prevent the damage of other devices on the controller caused by reverse connection of the positive electrode and the negative electrode of the power supply due to misoperation;
5) The utility model uses the current detected by the three-phase current detection circuit to judge whether to carry out overvoltage and undervoltage protection, idle running protection and locked-rotor protection measures after being calculated by the control chip, reduces the use of hardware circuits such as the traditional overvoltage and undervoltage protection circuit, idle running protection circuit, locked-rotor protection circuit and the like, and further improves the space utilization rate.
Drawings
Figure 1 is a schematic diagram of the front hardware architecture of the controller of the present utility model,
wherein: 1. a power supply interface; 2. a control circuit; 3. a temperature detection circuit; 4. a bus voltage detection circuit; 5. a three-phase current detection circuit and a bus current detection circuit; 6. a DC-DC step-down circuit; 7. a communication circuit; 8. a driving circuit; 9. a filter circuit; 10. an anti-reverse connection circuit; 11. an inverter circuit; 12. a three-phase motor interface.
FIG. 2 is a schematic diagram of the back side hardware architecture of the controller of the present utility model;
FIG. 3 is a schematic diagram of a bus voltage detection circuit according to the present utility model;
FIG. 4 is a schematic diagram of a three-phase current detection circuit according to the present utility model;
FIG. 5 is a schematic diagram of an anti-surge circuit, anti-reverse circuit and DC-DC circuit of the present utility model;
FIG. 6 is a block diagram of the overall structure of the controller of the electronic water pump of the automobile of the utility model;
FIG. 7 is a diagram of the overall architecture of the system of the present utility model;
FIG. 8 is a main process flow chart of the present utility model;
fig. 9 is a flowchart of the locked-rotor protection procedure of the present utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail below with reference to the accompanying drawings and examples of the present utility model. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
On the contrary, the utility model is intended to cover any alternatives, modifications, equivalents, and variations as may be included within the spirit and scope of the utility model as defined by the appended claims. Further, in the following detailed description of the present utility model, certain specific details are set forth in order to provide a better understanding of the present utility model. The present utility model will be fully understood by those skilled in the art without the details described herein.
Referring to fig. 1-9, an electronic water pump controller is mainly applicable to an automobile electronic water pump controller without a position sensor, and the automobile electronic water pump controller and a water pump are installed in an integrated manner; the circuit comprises a control circuit, a signal receiving circuit, a driving circuit, a DC-DC voltage reducing circuit, a sampling circuit and a protection circuit which are integrated on a four-layer PCB.
Specifically, the control circuit comprises a control chip and an input voltage circuit; the sampling circuit comprises a bus voltage sampling circuit, a motor three-phase current sampling circuit and a temperature sampling circuit; the protection circuit comprises a power port protection circuit, a power reverse connection prevention protection circuit, an overcurrent protection circuit, a bus voltage detection circuit, an NTC temperature detection circuit, a short circuit protection circuit, an undervoltage protection circuit and a phase failure protection circuit; the driving circuit comprises a driving chip and a plurality of driving circuit branches; the DC-DC voltage reducing circuit comprises a motor power supply circuit, a control chip power supply, a driving chip power supply, a sampling circuit power supply and a driving chip voltage reducing circuit, wherein the control chip voltage reducing circuit is used for controlling the sampling circuit power supply and the driving chip voltage reducing circuit; the signal receiving circuit adopts a LIN communication circuit, a PWM signal receiving circuit and a CAN communication circuit.
Specifically, the control circuit is used for receiving a control instruction of the system, collecting input voltage and current of a power supply, three-phase current, calculating the rotating speed and rotating position of the motor, environment temperature, protection signals and the like, and controlling the motor through a high-performance control algorithm, and meanwhile achieving fault protection of the system;
the control chip is connected with the driving circuit, the overcurrent protection circuit, the three-phase motor current sampling circuit, the bus voltage sampling circuit and the temperature sampling circuit, and the input voltage is connected with the bus voltage sampling circuit and the power supply.
Specifically, the signal receiving circuit is connected with the control chip through the signal receiving chip and regulates and controls the rotating speed of the motor, the LIN communication circuit comprises an LIN communication chip and an LIN communication circuit, the LIN communication chip and the LIN communication circuit are connected with the control chip, the PWM signal receiving circuit is connected with the control chip, the CAN communication circuit comprises a CAN communication chip and a CAN communication circuit, and the CAN communication chip and the CAN communication circuit are connected with the control chip.
Specifically, the driving circuit is used for sending the output six paths of driving signals to the gate electrodes of the corresponding power tubes on the inverter circuit; the driving chip is respectively connected with a plurality of driving circuit branches and control chips in the control circuit, and the driving circuit branches are respectively connected with corresponding MOS tubes on the three-phase full-bridge inverter circuit in the inverter circuit.
Specifically, the inverter circuit is used for inverting direct current input by the power supply into alternating current with variable three-phase frequency through the three-phase full-bridge inverter circuit according to a control instruction of the control panel, and controlling the motor in real time; the inverter circuit is connected with the motor through a three-phase full-bridge inverter circuit.
Specifically, the DC-DC step-down circuit is used for adjusting the DC bus voltage, and converting the input voltage into the supply voltage required by the driving chip, the control chip and the sampling circuit. The DC-DC voltage reducing circuit also comprises a filter circuit and an anti-reverse connection circuit.
Specifically, in the sampling circuit, the three-phase current of the motor is calculated according to a program in a control chip of the three-phase current to obtain the rotating speed of the motor and the rotating position of the motor; the temperature sampling circuit is connected with the control chip and used for collecting the ambient temperature and the temperature of the PCB.
Specifically, in the protection circuit, each circuit is connected with the control chip, the power port protection circuit, the power reverse connection prevention protection circuit and the short circuit protection circuit are connected with the power supply, and the overcurrent protection circuit is also connected with the motor three-phase current sampling circuit, so that the automobile electronic water pump controller has a corresponding protection function; the power port protection circuit, the power reverse connection prevention protection circuit and the short circuit protection circuit are connected with a power supply, and the overcurrent protection circuit is also connected with the motor three-phase current sampling circuit.
In this embodiment, the protection functions of overvoltage protection, undervoltage protection, overcurrent protection, idle protection, locked-rotor protection, open-phase protection and the like are provided, wherein:
the under-voltage protection function and the over-voltage protection function are realized by collecting bus voltage through a bus voltage collecting circuit and then through a control chip, and the over-current protection function, the locked rotor protection function and the idle rotation protection function can be realized by connecting a motor three-phase current sampling circuit and a bus current detecting circuit with an MCU and through corresponding protection programs; it can also be realized by a stream protection circuit; the bus current detection circuit is connected with the three-phase current detection circuit and the control circuit.
The phase-loss protection can be realized through a corresponding phase-loss protection program in the MCU by connecting the motor three-phase current sampling circuit with the MCU; or by a phase-failure protection circuit.
In this embodiment, the signal receiving circuit is used to transmit a speed regulation signal, then the MCU receives the speed regulation signal, outputs a PWM signal to regulate the duty ratio to regulate the speed of the motor, and the driving circuit is used to control the inverter circuit to commutate the motor, and the power port protection circuit is used to filter the power current and prevent the surge current.
In the embodiment, each circuit is integrated on a multi-layer PCB circuit board, so that the arrangement of a control board and a driving board is reduced, and the cost is effectively saved; and the automobile electronic water pump control is connected with the three phases of the automobile water pump tail motor, so that the integration of the automobile electronic water pump is greatly improved, and the space utilization rate is improved.
In the utility model, an additional motor position sensor is not required to be used for controlling the automobile electronic water pump, three-phase current is obtained through a motor three-phase current sampling circuit, and then three-phase current is obtained through a phase current reconstruction program of a software layer:
firstly, three-phase current is transformed into an alpha-beta static coordinate system, the back electromotive force of a motor is reconstructed by calculating the error between the sampled actual current and the estimated current, the rotating speed of the rotor and the position of the rotor are further estimated, the installation space and the cost are saved by adopting a method without a position sensor, and the electronic water pump of an automobile is mainly used for radiating heat, so that high-precision position and rotating speed information are not needed;
in the utility model, a plurality of communication modes are used for controlling the rotating speed of the automobile electronic water pump, so that the practicability of the automobile electronic water pump controller in different communication environments is expanded; the signal receiving circuit is used for acquiring different speed regulating signals and regulating the rotating speed, so that the flow of the electronic water pump is regulated to adapt to heat dissipation at different temperatures;
according to the utility model, the power supply port protection circuit can reduce power supply ripple waves and surge currents caused by harmonic waves, can adapt to a large-range voltage conversion, can absorb the surge currents caused by the power supply ripple waves and the harmonic waves caused by unstable power supply voltage, and further protect other precise devices on the controller from damage; the reverse connection prevention circuit of the power supply can prevent the damage of other devices on the controller caused by reverse connection of the positive electrode and the negative electrode of the power supply due to misoperation;
according to the utility model, the current sampled by the motor three-phase current sampling circuit is calculated by the control chip to judge whether the overvoltage and undervoltage protection, the idle running protection and the locked rotor protection measures are carried out, so that the use of hardware circuits such as the traditional overvoltage and undervoltage protection circuit, the idle running protection circuit and the locked rotor protection circuit is reduced, and the space utilization rate is further improved.
The specific process of controlling the electronic water pump by using the controller of the embodiment is as follows: after the controller is powered on normally, initializing all functions in the control chip; after initialization is completed, then, circulation is carried out, a water pump is started in an open loop, and whether a position estimation program runs or not is confirmed; and after the open-loop operation and the position estimation are completed, executing closed-loop operation, fault detection and water pump protection. When the water pump is in a normal running state, the program continues signal acquisition, protection monitoring and motor driving; after the water pump fails, the program actively realizes the protection and shutdown of the motor and sends a failure signal. Before the fault is eliminated, the program continues to perform signal detection to ensure that the water pump is not shut down due to accidental triggering of the fault. If the continuous detection signal fault still exists, the water pump controller enters a permanent protection stage and the water pump is stopped, and the fault is fed back through a communication circuit.
The specific process of the controller locked rotor protection is as follows: in the running process of the water pump, if the phenomenon of overcurrent or stalling occurs, the controller and the motor are required to be protected by stopping. When the locked rotor happens, the water pump is equivalent to overload operation, and the current at the locked rotor moment can be suddenly increased. After triggering the locked rotor protection program, the detected current is larger than a calibration value and the fault count value is increased, and the protection program is triggered; continuously detecting current, and if the current is smaller than a calibration value, clearing a locked rotor fault count value, and enabling the water pump to normally operate; if the detected current is larger than the calibration value, the fault count value is continuously increased, and when the fault count value is larger than the count set value, the water pump is stopped permanently, and a fault is sent.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (9)
1. An electronic water pump controller, characterized in that: the circuit comprises a control circuit, a signal receiving circuit, a driving circuit, an inverter circuit, a DC-DC voltage reducing circuit, a sampling circuit and a protection circuit which are integrated on a multilayer PCB board; the control circuit is respectively connected with the signal receiving circuit, the driving circuit, the DC-DC voltage reducing circuit, the protection circuit and the sampling circuit; the inverter circuit is respectively connected with the driving circuit, the current sampling circuit and the motor; the DC-DC voltage reduction circuit is connected with a power supply, and the protection circuit is also connected with the power supply, the driving circuit and the motor.
2. The electronic water pump controller of claim 1, wherein the sampling circuit comprises a bus voltage sampling circuit, a motor three-phase current sampling circuit for collecting motor rotation speed and motor rotation position, and a temperature sampling circuit for collecting ambient temperature and PCB circuit board temperature.
3. The electronic water pump controller according to claim 2, wherein the protection circuit comprises a power port protection circuit, a power reverse connection prevention protection circuit, an overcurrent protection circuit, a bus voltage detection circuit, an NTC temperature detection circuit, a short circuit protection circuit, an undervoltage protection circuit and a phase failure protection circuit; each circuit is connected with the control chip, the power port protection circuit, the power reverse connection prevention protection circuit and the short circuit protection circuit are connected with the power supply, and the overcurrent protection circuit is also connected with the motor three-phase current sampling circuit.
4. The controller of claim 3, wherein the control circuit comprises a control chip and an input voltage circuit, the control chip is connected with the signal receiving circuit, the driving circuit, the overcurrent protection circuit, the three-phase motor current sampling circuit, the bus voltage sampling circuit and the temperature sampling circuit, and the input voltage circuit is connected with the bus voltage sampling circuit and the power supply.
5. The controller of claim 4, wherein the inverter circuit is connected to the motor via a three-phase full-bridge inverter circuit, and the motor three-phase current sampling circuit is connected to the inverter circuit.
6. The controller of claim 4, wherein the driving circuit comprises a driving chip and a plurality of driving circuit branches, the driving chip is respectively connected with the driving circuit branches and the control chip in the control circuit, and the driving circuit branches are respectively connected with corresponding MOS tubes on the three-phase full-bridge inverter circuit in the inverter circuit.
7. The electronic water pump controller of claim 4, wherein the DC-DC voltage reduction circuit comprises a motor power supply circuit, a control chip power supply, a driving chip power supply, a sampling circuit power supply, a driving chip voltage reduction circuit and a control chip voltage reduction circuit.
8. The electronic water pump controller according to claim 4, wherein the signal receiving circuit is connected with the control chip through the signal receiving chip and adjusts and controls the rotation speed of the motor, and the signal receiving circuit adopts a LIN communication circuit, a PWM signal receiving circuit and a CAN communication circuit, the LIN communication circuit comprises a LIN communication chip and a LIN communication circuit, the LIN communication chip and the LIN communication circuit are connected with the control chip, the PWM signal receiving circuit is connected with the control chip, the CAN communication circuit comprises a CAN communication chip and a CAN communication circuit, and the CAN communication chip and the CAN communication circuit are connected with the control chip.
9. An electronic water pump controller according to claim 1, wherein the three phases of the controller are welded to the three phase interface of the water pump motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321331195.9U CN219639084U (en) | 2023-05-30 | 2023-05-30 | Electronic water pump controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321331195.9U CN219639084U (en) | 2023-05-30 | 2023-05-30 | Electronic water pump controller |
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| Publication Number | Publication Date |
|---|---|
| CN219639084U true CN219639084U (en) | 2023-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321331195.9U Active CN219639084U (en) | 2023-05-30 | 2023-05-30 | Electronic water pump controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219639084U (en) |
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2023
- 2023-05-30 CN CN202321331195.9U patent/CN219639084U/en active Active
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