CN207339699U - A kind of two-phase brush DC electronic water pump - Google Patents
A kind of two-phase brush DC electronic water pump Download PDFInfo
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- CN207339699U CN207339699U CN201721321507.2U CN201721321507U CN207339699U CN 207339699 U CN207339699 U CN 207339699U CN 201721321507 U CN201721321507 U CN 201721321507U CN 207339699 U CN207339699 U CN 207339699U
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- switch pipe
- water pump
- electronic water
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Abstract
The utility model discloses a kind of two-phase brush DC electronic water pump, including two phase DC brushless motors, hall position sensor, first switch pipe, second switch pipe, drive circuit, reverse-connection preventing circuit and control unit；Control unit receives the instruction that entire car controller ECU is sent, and realizes the rotating speed control to two phase DC brushless motors, meanwhile, the running state information and failure diagnosis information of electronic water pump are fed back to entire car controller ECU by control unit.Hall position sensor detects the rotor position information of two phase DC brushless motors, pass to control unit, control unit is controlled first switch pipe and second switch pipe by drive circuit, realize the commutation control to inverter current and the amplitude control to inverter current, so as to fulfill the adjusting of two-phase direct current brushless motor speed, and then realize the adjustment control to electronic water pump flow.The utility model uses driving motor of two phase brushless DC motors as electronic pump, has the advantages that simple in structure, reliable operation.
Description
Technical field
A kind of electronic water pump for automobile is the utility model is related to, more particularly, to a kind of two-phase brush DC electronic water pump.
Background technology
At present, it is in the cooling system of automobile to use traditional mechanical water pump more, development however as new-energy automobile and
Country increases the support dynamics of new-energy automobile, and more and more pure electric automobiles put goods on the market, electronic power components and electricity
The heat dissipation of motivation is required for being cooled down, but traditional mechanical water pump is not conveniently used in pure electric automobile, so automobile
Electronic water pump is widely used with extraordinary market prospects.
Authorization Notice No. is that the utility model patent of 205918651 U of CN discloses a kind of new-energy automobile electronic water pump
And control system, have and seal removable upper, middle and lower housing.There is ceramic rotor central shaft in upper, middle casing, upper end has fixed
Middle casing is fixed in the cover and upper axle bed, lower end, and periphery fills rotating Ceramic shaft sleeve, it is with water pump vane body, water pump vane lid
Making is integrated.The ferrite lattice and steel plate that rotor is integrated, are fixed on water pump vane body lower plane.It is fixed in middle lower housing shell
Son and control piece.The motor driver that is made of metal-oxide-semiconductor, microcontroller, fault detect, the communication being connected with auto pump controller
Module etc..It is low to not only solve brush motor high energy consumption, efficiency, and structurally waterproof is good, small volume and less weight, it is easy to maintain.There is cover
Lid water noise is small.Can monitor in real time exclude temperature, voltage, electric current, it is dry turn, the failure such as stall.However, the utility model uses three
Phase motor, since there are mutual inductance effect so that the rotary speed precision of three phase electric machine is not high.
Accordingly, it is desirable to provide a new brush DC electronic water pump, for overcoming common Three-phase electronic water pump to exist
The problem of rotary speed precision is not high.
Utility model content
In view of this, the purpose of this utility model is in view of the deficiencies of the prior art, there is provided a kind of two-phase brush DC electricity
Sub- water pump, using driving motor of two phase brushless DC motors as electronic pump, there is provided simple in structure, reliable operation automobile electricity
Sub- water pump.
To reach above-mentioned purpose, the utility model uses following technical scheme：
A kind of two-phase brush DC electronic water pump, including two phase DC brushless motors, hall position sensor, first switch
Pipe, second switch pipe, drive circuit, reverse-connection preventing circuit and control unit；
Two phase DC brushless motor is used as the driving motor of electronic water pump, the stator of two phase DC brushless motor
Comprising the second winding of the first winding of stator and stator, the head end of first winding of stator and the second winding of stator is and vehicle mounted electric
The cathode connection in source, the tail end of first winding of stator is connected with one end of the first switch pipe, the stator second around
The tail end of group is connected with one end of the second switch pipe, the rotor of two phase DC brushless motor and the water pump of electronic water pump
Impeller connects；
The output terminal of the hall position sensor is connected with described control unit, for detecting two phase DC brushless motors
Rotor position information；
The control terminal of the first switch pipe is connected with the drive circuit, for controlling opening for first winding of stator
Logical and shut-off；
The control terminal of the second switch pipe is connected with the drive circuit, for controlling opening for second winding of stator
Logical and shut-off；
The input terminal of the drive circuit is connected with described control unit, for driving the first switch pipe and second to open
Guan Guan；
One end of the reverse-connection preventing circuit connects with the other end of the first switch pipe other end and the second switch pipe
Connect, the other end of the reverse-connection preventing circuit is connected with the anode of the vehicle power supply, positive and negative with vehicle power supply for electronic water pump
The error protection during reversal connection of pole；
The entire car controller ECU connections of described control unit and automobile, realize and two phase DC brushless motor are turned
Speed control and fault diagnosis feedback function, while the rotor position information of the hall position sensor output is received, it is real
Now to the commutation control of the two phase DC brushless motors operating current.
Preferably, the first switch pipe and second switch pipe are respectively by the first N-channel field-effect tube and the second N-channel field
Effect pipe is formed, and the grid of the first N-channel field-effect tube and the second N-channel field-effect tube connects with the drive circuit
Connect.
Preferably, the reverse-connection preventing circuit is made of the 3rd N-channel field-effect tube, first resistor and second resistance, described
One end of 3rd N-channel field-effect tube is connected with the anode of the vehicle power supply, one end of the first resistor and second resistance
Control terminal with the 3rd N-channel field-effect tube is connected, the other end of the first resistor and the vehicle power supply cathode
Connection, the other end of the second resistance, the other end of the 3rd N-channel field-effect tube and the first N-channel field-effect tube
The other end of the other end with the second N-channel field-effect tube is connected.
Preferably, described control unit passes through the whole of PWM communication interfaces, LIN communication interfaces or CAN communication interface and automobile
Vehicle controller ECU connections.
The beneficial effects of the utility model are：
The electronic water pump that the utility model is directed to uses three phase electric machine, since there are mutual inductance effect so that three phase electric machine
The problem of rotary speed precision is not high, there is provided a kind of two-phase brush DC electronic water pump, including two phase DC brushless motors, hall position
Sensor, first switch pipe, second switch pipe, drive circuit, reverse-connection preventing circuit and control unit；Wherein, two-phase brush DC
Motor is used as the driving motor of electronic water pump, the stators of two phase DC brushless motors include the first winding of stator and stator second around
Group, the head end of the second winding of the first winding of stator and stator are connected with the cathode of vehicle power supply, the tail end of the first winding of stator
It is connected with one end of first switch pipe, the tail end of the second winding of stator is connected with one end of second switch pipe, two-phase brush DC
The rotor of motor and the water pump vane of electronic water pump connect；And the output terminal of hall position sensor is connected with control unit, use
In the rotor position information for detecting two phase DC brushless motors；Meanwhile the control terminal of first switch pipe is connected with drive circuit, use
Opening and turning off in control the first winding of stator；It is fixed for controlling and the control terminal of second switch pipe is connected with drive circuit
Sub second winding being opened and turning off；In addition, the input terminal of drive circuit is connected with control unit, for driving first switch pipe
With second switch pipe；One end of reverse-connection preventing circuit is connected with the other end of the first switch pipe other end and second switch pipe, counnter attack
The other end for connecing circuit is connected with the anode of the vehicle power supply, for electronic water pump and event during vehicle power supply positive and negative anodes reversal connection
Barrier protection；The entire car controller ECU connections of control unit and automobile, realize rotating speed control and event to two phase DC brushless motors
Hinder diagnostic feedback function, while receive the rotor position information of hall position sensor output, realize to two-phase brush DC electricity
The commutation control of machine operating current.
The utility model using two phase brushless DC motors will be appreciated that its armature winding is mutually perpendicular,
There is no mutual inductance effect, and the zero crossing of its back-emf signal is exactly the zero-point voltage of actual circuit, so two-phase induction motor
Precision be better than three phase electric machine.When being run under identical drive control circuit, the rotary speed precision of two phase brushless DC motors
At least an order of magnitude or so is higher by than three phase electric machine.
The utility model proposes a kind of two-phase brush DC electronic water pump, control unit receives entire car controller ECU hair
The instruction gone out, realizes the rotating speed control to two phase DC brushless motors, meanwhile, control unit believes the operating status of electronic water pump
Breath and failure diagnosis information feed back to entire car controller ECU.Hall position sensor detects the rotor of two phase DC brushless motors
Positional information, passes to control unit, and control unit is controlled first switch pipe and second switch pipe by drive circuit,
The commutation control to inverter current and the amplitude control to inverter current are realized, it is achieved thereby that two-phase direct current brushless motor speed
Adjusting, and then realize the adjustment control to electronic water pump flow.
The utility model proposes a kind of two-phase brush DC electronic water pump, main power circuit only needs two switching tubes,
Cost of implementation is low, and circuit is realized simply, easy to control, can ensure electronic water pump reliably work in wide input voltage range
Make.
Brief description of the drawings
Fig. 1 is the block diagram of system of the utility model；
Fig. 2 is the structure diagram of the utility model.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
The attached drawing of type embodiment, is clearly and completely described the technical solution of the utility model embodiment.Obviously, it is described
Embodiment is the part of the embodiment of the utility model, instead of all the embodiments.Based on described the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, a kind of two-phase brush DC electronic water pump, including two phase DC brushless motors 1, Hall position
Put sensor 2, first switch pipe 3, second switch pipe 4, drive circuit 5, reverse-connection preventing circuit 6 and control unit 7.
Two phase DC brushless motor 1 is used as the driving motor of electronic water pump, and two phase DC brushless motor 1 is determined
Attached bag contains the first winding of stator 11 and the second winding of stator 12, the head end of first winding of stator 11 and the second winding of stator 12
Cathode with vehicle power supply 8 is connected, and the tail end of first winding of stator 11 is connected with one end of the first switch pipe 3,
The tail end of second winding of stator 12 is connected with one end of the second switch pipe 4, and two phase DC brushless motor 1 turns
Son 13 is connected with the water pump vane 9 of electronic water pump.
The output terminal of the hall position sensor 2 is connected with described control unit 7, for detecting two-phase brush DC electricity
13 positional information of rotor of machine 1.
The control terminal of the first switch pipe 3 is connected with the drive circuit 5, for controlling first winding of stator 11
Open and turn off.
The control terminal of the second switch pipe 4 is connected with the drive circuit 5, for controlling second winding of stator 12
Open and turn off.
The input terminal of the drive circuit 5 is connected with described control unit 7, for driving the first switch pipe 3 and
Two switching tubes 4.
One end of the reverse-connection preventing circuit 6 and 3 other end of first switch pipe and the other end of the second switch pipe 4
Connection, the other end of the reverse-connection preventing circuit 6 is connected with the anode of the vehicle power supply 8, for electronic water pump and vehicle power supply 8
Error protection during positive and negative anodes reversal connection.
Described control unit 7 is connected with the entire car controller ECU10 of automobile, is realized to two phase DC brushless motor 1
Rotating speed control and fault diagnosis feedback function, while receive 13 position of the rotor that the hall position sensor 2 exports
Information, realizes the commutation control to two phase DC brushless motors, 1 operating current.
The first switch pipe 3 and second switch pipe 4 are imitated by the first N-channel field-effect tube 3a and the second N-channel field respectively
Should pipe 4a form, the grid of the first N-channel field-effect tube 3a and the second N-channel field-effect tube 4a with the drive circuit
5 connections.
The reverse-connection preventing circuit 6 is made of the 3rd N-channel field-effect tube 61, first resistor 62 and second resistance 63, described
One end of 3rd N-channel field-effect tube 61 is connected with the anode of the vehicle power supply 8, the first resistor 62 and second resistance 63
Control terminal of the one end with the 3rd N-channel field-effect tube 61 be connected, the other end and the car of the first resistor 62
Carry the connection of 8 cathode of power supply, the other end of the second resistance 63, the other end and the first N of the 3rd N-channel field-effect tube 61
The other end of the other end of channel field-effect pipe 3a with the second N-channel field-effect tube 4a is connected.
The entire car controller ECU10 connections that described control unit 7 passes through PWM communication interfaces and automobile.
In the embodiment, entire car controller ECU connections that control unit passes through PWM communication interfaces and automobile, it is obvious that choosing
Same effect can be equally played with other communication interfaces, such as LIN communication interfaces or CAN communication interface.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, this area
Other modifications or equivalent substitution that those of ordinary skill makes the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme, should all cover among the right of the utility model.
Claims (4)
- A kind of 1. two-phase brush DC electronic water pump, it is characterised in that：Sensed including two phase DC brushless motors, hall position Device, first switch pipe, second switch pipe, drive circuit, reverse-connection preventing circuit and control unit；Two phase DC brushless motor is used as the driving motor of electronic water pump, and the stator of two phase DC brushless motor includes The second winding of the first winding of stator and stator, the head end of first winding of stator and the second winding of stator with vehicle power supply Cathode connects, and the tail end of first winding of stator is connected with one end of the first switch pipe, second winding of stator Tail end is connected with one end of the second switch pipe, the rotor of two phase DC brushless motor and the water pump vane of electronic water pump Connection；The output terminal of the hall position sensor is connected with described control unit, for detecting turning for two phase DC brushless motors Sub- positional information；The control terminal of the first switch pipe is connected with the drive circuit, for control first winding of stator open with Shut-off；The control terminal of the second switch pipe is connected with the drive circuit, for control second winding of stator open with Shut-off；The input terminal of the drive circuit is connected with described control unit, for driving the first switch pipe and second switch Pipe；One end of the reverse-connection preventing circuit is connected with the other end of the first switch pipe other end and the second switch pipe, institute The other end for stating reverse-connection preventing circuit is connected with the anode of the vehicle power supply, for electronic water pump and vehicle power supply positive and negative anodes reversal connection When error protection；The entire car controller ECU connections of described control unit and automobile, realize the rotating speed control to two phase DC brushless motor System and fault diagnosis feedback function, while receive the rotor position information of the hall position sensor output, realization pair The commutation control of the two phase DC brushless motors operating current.
- A kind of 2. two-phase brush DC electronic water pump according to claim 1, it is characterised in that：The first switch pipe and Second switch pipe is made of the first N-channel field-effect tube and the second N-channel field-effect tube respectively, the first N-channel field-effect Pipe and the grid of the second N-channel field-effect tube are connected with the drive circuit.
- A kind of 3. two-phase brush DC electronic water pump according to claim 2, it is characterised in that：The reverse-connection preventing circuit by 3rd N-channel field-effect tube, first resistor and second resistance are formed, one end and the car of the 3rd N-channel field-effect tube Carry the anode connection of power supply, the control of one end of the first resistor and second resistance with the 3rd N-channel field-effect tube End connection, the other end of the first resistor is connected with the vehicle power supply cathode, the other end of the second resistance, described the The other end of three N-channel field-effect tube and the other end of the first N-channel field-effect tube with the second N-channel field-effect tube The other end connects.
- A kind of 4. two-phase brush DC electronic water pump according to claim 1, it is characterised in that：Described control unit passes through The entire car controller ECU connections of PWM communication interfaces, LIN communication interfaces or CAN communication interface and automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721321507.2U CN207339699U (en) | 2017-10-13 | 2017-10-13 | A kind of two-phase brush DC electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721321507.2U CN207339699U (en) | 2017-10-13 | 2017-10-13 | A kind of two-phase brush DC electronic water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207339699U true CN207339699U (en) | 2018-05-08 |
Family
ID=62368491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721321507.2U Active CN207339699U (en) | 2017-10-13 | 2017-10-13 | A kind of two-phase brush DC electronic water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207339699U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241976A (en) * | 2021-06-04 | 2021-08-10 | 亳州联岐医疗科技有限公司 | High-precision motor monitoring system for injection pump and infusion pump |
-
2017
- 2017-10-13 CN CN201721321507.2U patent/CN207339699U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241976A (en) * | 2021-06-04 | 2021-08-10 | 亳州联岐医疗科技有限公司 | High-precision motor monitoring system for injection pump and infusion pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 473004 No. 80 Changjiang Road, Wancheng District, Nanyang City, Henan Province Co-patentee after: Feilong Automotive Parts Co., Ltd. Patentee after: Nanyang Science Technology College Address before: 473004 No. 80 Changjiang Road, Wancheng District, Nanyang City, Henan Province Co-patentee before: Xixia Automobile Water Pump Co., Ltd., Henan Prov. Patentee before: Nanyang Science Technology College |
|
| CP01 | Change in the name or title of a patent holder |