CN202579212U - Electric water pump - Google Patents
Electric water pump Download PDFInfo
- Publication number
- CN202579212U CN202579212U CN 201220232783 CN201220232783U CN202579212U CN 202579212 U CN202579212 U CN 202579212U CN 201220232783 CN201220232783 CN 201220232783 CN 201220232783 U CN201220232783 U CN 201220232783U CN 202579212 U CN202579212 U CN 202579212U
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- motor
- motor shaft
- housing
- cover
- water pump
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- Expired - Fee Related
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Abstract
The utility model relates to an electric water pump which comprises a pump body and a motor. The pump body comprises a pump casing and an impeller arranged in the pump casing, a pumping opening and a draining opening are arranged on the pump casing, the motor is a direct-current brushless motor, and a motor shaft extends into the pump casing to be connected with the impeller. The electric water pump is provided with the direct-current brushless motor (such as a direct-current brushless motor without a position sensor and a direct-current brushless motor with a position sensor), the speed of the direct-current brushless motor can be regulated steplessly by a motor controller, and a user can regulate the rotational speed of the impeller according to the lift required actually. In addition, the direct-current brushless motor is used as a driving motor of the impeller, so that equipment is low in noise during operation, and is low in energy consumption and high in efficiency, and current environmental protection requirements on energy conservation and emission reduction are met.
Description
Technical field
The utility model relates to a kind of electric water pump.
Background technique
Existing electric water pump adopts AC motor to drive, and its operating noise is big, energy consumption is high, the life-span is short, and operating voltage do not belong to safety voltage, in case leak electricity, can cause very big injury to the user, more can bring the economic loss of others.In addition, the electric water pump that AC motor drives, its rotating speed is constant, when water pump just starts, tends to because rotating speed is not high enough, and causes water pump to be found time, and needs manual work in pipeline, to pour water, and drains air; In the water pump operation process, then can not reduce its speed of drawing water, the user can only regulate the speed that water level rises or descends through stopping pump working once in a while.
The model utility content
The purpose of the utility model is to overcome the deficiency that above-mentioned existing technology exists, but and the electric water pump of a kind of simple and reasonable, low noise, low energy consumption, long lifetime, high effect, reliable stepless speed regulation is provided, to overcome the deficiency of existing technology.
The purpose of the utility model is to realize like this.
A kind of electric water pump comprises the pump housing and motor, and the pump housing comprises pump case and the impeller that is arranged in the pump case, and pump case is provided with pump mouth and drain opening, it is characterized in that: said motor is a dc brushless motor, and motor shaft stretches in the pump case and is connected with impeller.
The purpose of the utility model can also adopt following technical measures to solve.
As a kind of scheme more specifically, said dc brushless motor is a brush DC position-sensor-free motor, and it comprises housing assembly, stator assembly, rotor assembly and electric machine controller; Housing assembly comprises housing, is connected the front cover and the rear end cover at housing two ends, and stator assembly comprises stator iron core and staor winding, and rotor assembly comprises rotor magnetic steel and the motor shaft that is fixed on the rotor magnetic steel center; Stator iron core is fixed in inner walls; The lighting outlet of staor winding is electrically connected with electric machine controller; Rotor magnetic steel is arranged at the stator iron core center, and stretch out outside the front and rear cover at the motor shaft two ends, and also corresponding respectively motor shaft two ends are provided with fore bearing and rear bearing on the front and rear cover.Adopt the structure of brush DC position-sensor-free motor, need not rely on Hall element to come transmission signal, use the set chip of high intelligence, control the running of motor fully with controller and power input line, simplified the structure of dc brushless motor greatly.
As another kind of scheme more specifically, said dc brushless motor is a brush DC position sensor motor, and it comprises housing assembly, stator assembly, rotor assembly, position transducer and electric machine controller; Housing assembly comprises housing, is connected the front cover and the rear end cover at housing two ends, and stator assembly comprises stator iron core and staor winding, and rotor assembly comprises rotor magnetic steel and the motor shaft that is fixed on the rotor magnetic steel center; Stator iron core is fixed in inner walls; The lighting outlet of staor winding is electrically connected with electric machine controller; Rotor magnetic steel is arranged at the stator iron core center, and stretch out outside the front and rear cover at the motor shaft two ends, and also corresponding respectively motor shaft two ends are provided with fore bearing and rear bearing on the front and rear cover; Position transducer is arranged on the motor shaft rear end.
Said position transducer is a Hall transducer, and the motor shaft rear end is stretched out outside the rear end cover and in its periphery and is set with magnet ring, and the magnet ring outer periphery has said Hall transducer, and Hall transducer is electrically connected with electric machine controller.Hall transducer is arranged on motor rear end with the structure of split, and easy disassembly and maintenance does not influence the internal structure of motor yet.
The said Hall transducer outside is provided with cover body, and cover body is fixedly connected with the rear end cover outside.
The beneficial effect of the utility model is following.
1, this water pump adopts dc brushless motor (brush DC position-sensor-free motor and brush DC position sensor motor) to carry out stepless speed regulation to it through electric machine controller, and the user can regulate wheel speed according to the required lift of reality.
2, adopt the drive motor of dc brushless motor as impeller, noise is lower when making equipment work, energy consumption is littler, efficient is higher, meets the environmental requirement of current energy-saving and emission-reduction.
3, the operating voltage of dc brushless motor can use the safety voltage below the 36V to start, and human body is damaged when avoiding leaking electricity.
Description of drawings
Fig. 1 is the utility model one example structure schematic representation.
Fig. 2 is another example structure schematic representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1, this electric water pump comprises the pump housing and motor, and the pump housing comprises pump case 4 and the impeller 5 that is arranged in the pump case 4, and pump case 4 is provided with pump mouth 6 and drain opening 4.1, and said motor is a dc brushless motor, and motor shaft 3.9 stretches in the pump case 4 and is connected with impeller 5.
Said dc brushless motor is a brush DC position-sensor-free motor 3, and it comprises housing assembly, stator assembly, rotor assembly and electric machine controller; Housing assembly comprises housing 3.4, is connected the front cover 3.6 and the rear end cover 3.8 at housing 3.4 two ends, and stator assembly comprises stator iron core 3.2 and staor winding 3.1, and rotor assembly comprises rotor magnetic steel 3.3 and the motor shaft 3.9 that is fixed on rotor magnetic steel 3.3 centers; Stator iron core 3.2 is fixed in housing 3.4 inwalls; The lighting outlet 3.7 of staor winding 3.1 is electrically connected with electric machine controller; Rotor magnetic steel 3.3 is arranged at stator iron core 3.2 centers; Stretch out outside the front and rear cover at motor shaft 3.9 two ends, and also corresponding respectively motor shaft two ends are provided with fore bearing and rear bearing 3.5 on the front and rear cover.
The rear end cover outside of above-mentioned brush DC position-sensor-free motor 3 also is provided with the sealing cover 1 that is tightly connected with rear end cover 3.8; Lighting outlet 3.7 passes outside the sealing cover; In addition; Also be provided with stuffing box gland 2 between lighting outlet 3.7 and the sealing cover 1, be provided with seal ring between motor shaft 3.9 and the front cover 3.6, thereby make electric water pump become a submersible pump.
Embodiment two, and in conjunction with Fig. 2, only be with embodiment one difference: said dc brushless motor is a brush DC position sensor motor 3 ', and it comprises housing assembly, stator assembly, rotor assembly, position transducer and electric machine controller; Housing assembly comprises housing 3.4, is connected the front cover 3.6 and the rear end cover 3.8 at housing 3.4 two ends, and stator assembly comprises stator iron core 3.2 and staor winding 3.1, and rotor assembly comprises rotor magnetic steel 3.3 and the motor shaft 3.9 that is fixed on rotor magnetic steel 3.3 centers; Stator iron core 3.2 is fixed in housing 3.4 inwalls; The lighting outlet 3.7 of staor winding 3.1 is electrically connected with electric machine controller; Rotor magnetic steel 3.3 is arranged at stator iron core 3.2 centers; Stretch out outside the front and rear cover at motor shaft 3.9 two ends, and also corresponding respectively motor shaft 3.9 two ends are provided with fore bearing and rear bearing 3.5 on the front and rear cover; Position transducer is arranged on motor shaft 3.9 rear end.
Said position transducer is a Hall transducer, and motor shaft 3.9 rear ends are stretched out outside the rear end cover 3.8 and in its periphery and are set with magnet ring 9, and magnet ring 9 outer periphery have said Hall transducer 7, and Hall transducer 7 is electrically connected with electric machine controller.
Said Hall transducer 7 outsides are provided with cover body 8, and cover body 8 is fixedly connected with rear end cover 3.8 outsides.
Above-mentioned position transducer also can be a grating sensor etc., can also be the position transducer beyond Hall transducer and the grating sensor.
Claims (5)
1. an electric water pump comprises the pump housing and motor, and the pump housing comprises pump case and the impeller that is arranged in the pump case, and pump case is provided with pump mouth and drain opening, it is characterized in that: said motor is a dc brushless motor, and motor shaft stretches in the pump case and is connected with impeller.
2. electric water pump according to claim 1 is characterized in that: said dc brushless motor is a brush DC position-sensor-free motor, and it comprises housing assembly, stator assembly, rotor assembly and electric machine controller;
Housing assembly comprises housing, is connected the front cover and the rear end cover at housing two ends, and stator assembly comprises stator iron core and staor winding, and rotor assembly comprises rotor magnetic steel and the motor shaft that is fixed on the rotor magnetic steel center;
Stator iron core is fixed in inner walls; The lighting outlet of staor winding is electrically connected with electric machine controller; Rotor magnetic steel is arranged at the stator iron core center, and stretch out outside the front and rear cover at the motor shaft two ends, and also corresponding respectively motor shaft two ends are provided with fore bearing and rear bearing on the front and rear cover.
3. electric water pump according to claim 1 is characterized in that: said dc brushless motor is a brush DC position sensor motor, and it comprises housing assembly, stator assembly, rotor assembly, position transducer and electric machine controller;
Housing assembly comprises housing, is connected the front cover and the rear end cover at housing two ends, and stator assembly comprises stator iron core and staor winding, and rotor assembly comprises rotor magnetic steel and the motor shaft that is fixed on the rotor magnetic steel center;
Stator iron core is fixed in inner walls; The lighting outlet of staor winding is electrically connected with electric machine controller; Rotor magnetic steel is arranged at the stator iron core center, and stretch out outside the front and rear cover at the motor shaft two ends, and also corresponding respectively motor shaft two ends are provided with fore bearing and rear bearing on the front and rear cover;
Position transducer is arranged on the motor shaft rear end.
4. electric water pump according to claim 3; It is characterized in that: said position transducer is a Hall transducer; The motor shaft rear end is stretched out outside the rear end cover and in its periphery and is set with magnet ring, and the magnet ring outer periphery has said Hall transducer, and Hall transducer is electrically connected with electric machine controller.
5. electric water pump according to claim 4 is characterized in that: the said Hall transducer outside is provided with cover body, and cover body is fixedly connected with the rear end cover outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232783 CN202579212U (en) | 2012-05-23 | 2012-05-23 | Electric water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232783 CN202579212U (en) | 2012-05-23 | 2012-05-23 | Electric water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579212U true CN202579212U (en) | 2012-12-05 |
Family
ID=47248628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220232783 Expired - Fee Related CN202579212U (en) | 2012-05-23 | 2012-05-23 | Electric water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579212U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003444A (en) * | 2015-07-23 | 2015-10-28 | 长沙秋点兵信息科技有限公司 | Water pump |
| CN111977725A (en) * | 2020-09-16 | 2020-11-24 | 安徽智泓净化科技股份有限公司 | Brushless motor for booster water pump of water purifier and working method of brushless motor |
-
2012
- 2012-05-23 CN CN 201220232783 patent/CN202579212U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003444A (en) * | 2015-07-23 | 2015-10-28 | 长沙秋点兵信息科技有限公司 | Water pump |
| CN111977725A (en) * | 2020-09-16 | 2020-11-24 | 安徽智泓净化科技股份有限公司 | Brushless motor for booster water pump of water purifier and working method of brushless motor |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20200523 |