CN205001210U - Micro DC water pump - Google Patents
Micro DC water pump Download PDFInfo
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- CN205001210U CN205001210U CN201520357242.6U CN201520357242U CN205001210U CN 205001210 U CN205001210 U CN 205001210U CN 201520357242 U CN201520357242 U CN 201520357242U CN 205001210 U CN205001210 U CN 205001210U
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Abstract
The utility model provides a micro DC water pump, micro DC water pump includes casing, motor, impeller and drive plate, set up drive circuit on the drive plate, the motor includes stator and rotor, just the stator include U sections core, respectively the cover locate the line frame on two iron core arms of U sections core and twine the coil on two lines framves by a wire respectively according to opposite direction, terminal of coil is connected with drive circuit's first end, another terminal of coil is connected with drive circuit's second end, wherein, drive circuit passes through hall switch and detects the magnetic variation and switch the voltage between first end and the second end according to this hall switch's output. The utility model discloses a coil that is formed by a wire coiling is realized lasting pivoted control to the water pump rotor, has brought the facility to the processing of product, can change the starting voltage and the operating power of motor moreover as required, has reduced manufacturing cost, has improved the availability factor.
Description
Technical field
The utility model relates to water pump product technical field, more particularly, relates to a kind of minisize dc water pump.
Background technique
At present, conventional micro pump motor-drive circuit many employings ac power supply Direct driver pump motor, or pass through switch power, and transfer interchange to direct current rear driving pump motor by traditional band transformer frequency response, and on the market most of small-sized DC water pump most by two groups of coils and around and switch two groups of coil alternations by a Hall switch, make water pump rotor continue to rotate, complex structure, cost is higher.
Model utility content
Technical problem to be solved in the utility model is, for existing technical problem, provides a kind of minisize dc water pump, brings facility to the processing of product, and can change starting voltage and the working power of motor as required.
The utility model solves the problems of the technologies described above, there is provided the following technological scheme solved: a kind of minisize dc water pump, described minisize dc water pump comprises housing, motor, be arranged in housing and for promoting the impeller of water flow, be arranged in housing and for the impeller cover that covers impeller and be arranged at motor side and the driving plate rotated for drive motor, described driving plate be provided with the drive circuit rotated for drive motor; Described motor comprises stators and rotators, wherein, stator cavity, rotor chamber and impeller cavity is respectively arranged with in described housing, described stator is arranged in stator cavity, described rotor is arranged in rotor chamber, described impeller is arranged in impeller cavity, and described stator comprises U-shaped iron core, is sheathed on coil holder on two iron core arms of U-shaped iron core and is wrapped in the coil on two coil holders by a wire according to opposite direction respectively respectively; Wherein, a terminal of described coil is connected with the first end of drive circuit, and another terminal of described coil is connected with the second end of drive circuit; Wherein, described drive circuit detects changes of magnetic field by Hall switch and according to the voltage between the output switching first end of this Hall switch and the second end.
In minisize dc water pump of the present utility model, the rotating shaft of described rotor adopts the mode of twice encapsulate to be injected on housing.
In minisize dc water pump of the present utility model, described drive circuit comprises Hall switch and the switching circuit for controlling electric motor starting voltage and working power; The positive terminal of described Hall switch is connected with power supply, and the negative pole end of Hall switch is connected with reference to ground, and its output terminal is connected with the input end of switching circuit; Two terminals of described coil are connected with the second end with the first end of switching circuit, and wherein, described coil adopts enameled conducting wire to be wound around and makes.
In minisize dc water pump of the present utility model, described switching circuit comprises the first switching circuit, second switch circuit and the 3rd switching circuit; The described input end of the first switching circuit is connected with the output terminal of Hall switch, and the output terminal of described first switching circuit is connected with power supply; The input end of described second switch circuit is connected with the output terminal of the first switching circuit, and its output terminal is connected with power supply; The input end of described 3rd switching circuit is connected with the input end of the first switching circuit, and its output terminal is connected with power supply.
In minisize dc water pump of the present utility model, described first switching circuit comprises the first triode, the first resistance and the 3rd resistance, the base stage of described first triode is connected with the output terminal of Hall switch by the first resistance, its collector electrode is connected with power supply by the 3rd resistance, and its emitter is connected with reference to ground;
Described second switch circuit comprises the second triode, the 3rd triode, the 6th triode, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance and the first electric capacity; The base stage of described second triode is connected between the first triode of the first switching circuit and the 3rd resistance by the 4th resistance, and the collector electrode of the second triode is connected with power supply by the first electric capacity, its emitter by the 6th resistance with reference to be connected;
The base stage of described 3rd triode is connected with the output terminal of Hall switch by the 5th resistance, and its emitter is connected with reference to ground;
The base stage of described 6th triode is connected between the collector electrode of the first electric capacity and the second triode, and the emitter of described 6th triode is connected with power supply, and its collector electrode is connected with the collector electrode of the 3rd triode; Wherein, between the described 8th resistance base stage that is connected to the 6th triode and emitter.
Described 3rd switching circuit comprises the 4th triode, the 5th triode, the 7th triode, the 9th resistance, the tenth resistance, the 11 resistance, the 12 resistance, the 13 resistance and the second electric capacity;
The base stage of described 4th triode is connected with the output terminal of Hall switch by the 12 resistance, and its emitter is connected with reference to ground;
The emitter of described 7th triode is connected with power supply, and its collector electrode is connected with the collector electrode of described 4th triode;
The collector electrode of described 5th triode is connected with the base stage of the 7th triode, its emitter by the 11 resistance with reference to be connected, its base stage is connected with the output terminal of Hall switch by the 13 resistance.
In minisize dc water pump of the present utility model, described second resistance is connected to positive terminal and the output terminal of Hall switch.
In minisize dc water pump of the present utility model, described 9th resistance is connected base stage and the emitter of the 7th triode with the second electric capacity, and described 8th resistance is connected emitter and the base stage of the 6th triode with the first electric capacity.
In minisize dc water pump of the present utility model, one end of described 7th resistance is connected between the base stage of the 3rd triode and the 5th resistance, and the other end is connected with reference to ground; Between the base stage that one end of described tenth resistance is connected to the 4th triode and the 12 resistance, the other end is connected with reference to ground.
In minisize dc water pump of the present utility model, be provided with the first end of switching circuit between described 6th transistor collector and the 3rd transistor collector, between described 7th transistor collector and the 4th transistor collector, be provided with the second end of switching circuit; A terminal of described coil is connected with first end, and another terminal of described coil is connected with the second end.
In minisize dc water pump of the present utility model, described first triode, the second triode, the 3rd triode, the 4th triode and the 5th triode adopt NPN type triode respectively; Described 6th triode and the 7th triode adopt PNP type triode respectively.
Implement minisize dc water pump of the present utility model, there is following beneficial effect: this drive circuit only needs one group of coil to realize continuing water pump rotor the control of rotation, facility is brought to the processing of product, and starting voltage and the working power of motor can be changed as required, reduce cost of production, improve utilization efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural blast schematic diagram based on minisize dc water pump of the present utility model;
Fig. 2 is the structural profile schematic diagram based on minisize dc water pump of the present utility model;
Fig. 3 is the structural representation of minisize dc water pump of the present utility model;
Fig. 4 is the overall appearance structural representation based on minisize dc water pump of the present utility model;
Fig. 5 is the drive circuit schematic diagram of minisize dc water pump of the present utility model.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As Figure 1-4, be the structural representation of minisize dc water pump of the present utility model; In a kind of minisize dc water pump, described minisize dc water pump comprises housing 5, motor M, be arranged in housing 5 and for promoting the impeller of water flow, be arranged in housing 5 and for the impeller cover 2 that covers impeller and be arranged at motor M side and the driving plate 9 rotated for drive motor M, described driving plate 9 be provided with the drive circuit rotated for drive motor M; Described motor M comprises stators and rotators 4, wherein, stator cavity, rotor chamber and impeller cavity is respectively arranged with in described housing 5, described stator is arranged in stator cavity, described rotor 4 is arranged in rotor chamber, described impeller is arranged in impeller cavity, and described stator comprises U-shaped iron core 6, is sheathed on coil holder 7 on two iron core arms of U-shaped iron core 6 and is wrapped in the coil 8 on two coil holders 7 by a wire according to opposite direction respectively respectively; Wherein, a terminal of described coil 8 is connected with the first end of drive circuit, and another terminal of described coil 8 is connected with the second end of drive circuit; Wherein, described drive circuit passes through the output of the low and high level of Hall switch HST, the unlatching of diverter circuit triode or the changes of magnetic field of closing control coil, thus the rotation of drive motor M.
In minisize dc water pump of the present utility model, the rotating shaft of rotor adopts the mode of twice encapsulate, and namely first by one end injection moulding part plastic cement of rotating shaft band annular knurl, then the glue part this part being put into water pump cover is injected in pump case.
Wherein, the operating voltage of described water pump realizes at below 3V, and the power of water pump realizes at below 0.2W; Wherein, the drive circuit on described driving plate realizes starting at below 3V.
Water pump adopts nasal-suction type water intake, and realize pump sump position lower than traditional middle water suction position, wherein, working water level realizes at below 5mm.
Water pump adopts highi degree of accuracy axle and rotor 4, and significantly improve pump efficiency and reduce noise, improve the life-span, wherein, its noise can accomplish below 36dB.
At present, the axle of most of micro pump is only injected in main body by disposable on the market, and the utility model adopts the mode of twice encapsulate, first by one end injection moulding part plastic cement of axle band annular knurl, the glue part again this part being put into water pump cover is injected on housing, and axle is injected in water pump cover far above disposable by the fastness of axle that makes of this mode.
As shown in Figure 2, be the drive circuit schematic diagram of minisize dc water pump of the present utility model; In a kind of minisize dc water pump, the wire for coiling 8 adopts enameled cable.
In minisize dc water pump of the present utility model, described drive circuit comprises Hall switch HST and the switching circuit for controlling motor M starting resistor and working power; The positive terminal of described Hall switch HST is connected with power supply, and the negative pole end of Hall switch HST is connected with reference to ground, and its output terminal is connected with the input end of switching circuit; Two terminals of described coil 8 are connected with the second end with the first end of switching circuit.
In minisize dc water pump of the present utility model, described switching circuit comprises the first switching circuit 100, second switch circuit 200 and the 3rd switching circuit 300; The input end of described first switching circuit 100 is connected with the output terminal of Hall switch HST, and the output terminal of described first switching circuit 100 is connected with power supply; The input end of described second switch circuit 200 is connected with the output terminal of the first switching circuit 100, and its output terminal is connected with power supply; The input end of described 3rd switching circuit 300 is connected with the input end of the first switching circuit 100, and its output terminal is connected with power supply.
In minisize dc water pump of the present utility model, described first switching circuit 100 comprises the first triode Q1, the first resistance R1 and the 3rd resistance R3, the base stage of described first triode Q1 is connected with the output terminal of Hall switch HST by the first resistance R1, its collector electrode is connected with power supply by the 3rd resistance R3, and its emitter is connected with reference to ground;
Described second switch circuit 200 comprises the second triode Q2, the 3rd triode Q3, the 6th triode Q6, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8 and the first electric capacity C1; The base stage of described second triode Q2 is connected between the first triode Q1 of the first switching circuit 100 and the 3rd resistance R3 by the 4th resistance R4, the collector electrode of the second triode Q2 is connected with power supply by the first electric capacity C1, its emitter by the 6th resistance R6 with reference to be connected;
The base stage of described 3rd triode Q3 is connected with the output terminal of Hall switch HST by the 5th resistance R5, and its emitter is connected with reference to ground;
The base stage of described 6th triode Q6 is connected between the collector electrode of the first electric capacity C1 and the second triode Q3, and the emitter of described 6th triode Q6 is connected with power supply, and its collector electrode is connected with the collector electrode of the 3rd triode Q3; Wherein, between the described 8th resistance R8 base stage that is connected to the 6th triode Q6 and emitter.
Described 3rd switching circuit 300 comprises the 4th triode Q4, the 5th triode Q5, the 7th triode Q7, the 9th resistance R9, the tenth resistance R10, the 11 resistance R11, the 12 resistance R12, the 13 resistance R13 and the second electric capacity C2;
The base stage of described 4th triode Q4 is connected with the output terminal of Hall switch HST by the 12 resistance R12, and its emitter is connected with reference to ground;
The emitter of described 7th triode Q7 is connected with power supply, and its collector electrode is connected with the collector electrode of described 4th triode Q4;
The collector electrode of described 5th triode Q5 is connected with the base stage of the 7th triode Q7, its emitter by the 11 resistance R11 with reference to be connected, its base stage is connected with the output terminal of Hall switch HST by the 13 resistance R13.
In minisize dc water pump of the present utility model, described second resistance R2 is connected to positive terminal and the output terminal of Hall switch HST.
In minisize dc water pump of the present utility model, described 9th resistance R9 is connected base stage and the emitter of the 7th triode Q7 with the second electric capacity C2, and described 8th resistance R8 is connected emitter and the base stage of the 6th triode Q6 with the first electric capacity C1.
In minisize dc water pump of the present utility model, one end of described 7th resistance R7 is connected between the base stage of the 3rd triode Q3 and the 5th resistance R5, and the other end is connected with reference to ground; Between the base stage that one end of described tenth resistance R10 is connected to the 4th triode Q4 and the 12 resistance R12, the other end is connected with reference to ground.
In minisize dc water pump of the present utility model, be provided with the first end of switching circuit between described 6th triode Q6 collector electrode and the 3rd triode Q3 collector electrode, between described 7th triode Q7 collector electrode and the 4th triode Q4 collector electrode, be provided with the second end of switching circuit; A terminal of described coil 8 is connected with first end, and another terminal of described coil 8 is connected with the second end.
In minisize dc water pump of the present utility model, described first triode Q1, the second triode Q2, the 3rd triode Q3, the 4th triode Q4 and the 5th triode Q5 adopt NPN type triode respectively; Described 6th triode Q6 and the 7th triode Q7 adopts PNP type triode respectively.
Minisize dc water pump of the present utility model, when Hall element HST exports high level, wherein, the first resistance R1 makes the first triode Q1 conducting, and meanwhile, the second triode Q2 or the 6th triode Q6 ends.13 resistance R13 makes the 5th triode Q5 or the 7th triode Q7 conducting, and described 5th resistance R5 makes the 3rd triode Q3 conducting, described coil electricity work.
When Hall element output low level, wherein, described first resistance R1 makes the first triode Q1 end, make the second triode Q2 or the 6th triode Q6 conducting, 12 resistance R12 makes the 4th triode Q4 conducting, described 13 resistance R13 makes the 5th triode Q5 or the 7th triode Q7 end, coil electricity work.
Implement minisize dc water pump of the present utility model, there is following beneficial effect: this drive circuit only needs one group of coil to realize continuing water pump rotor the control of rotation, facility is brought to the processing of product, and starting voltage and the working power of motor can be changed as required, reduce cost of production, improve utilization efficiency.
The above embodiment only have expressed mode of execution of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a minisize dc water pump, described minisize dc water pump comprises housing, motor, be arranged in housing and for promoting the impeller of water flow, be arranged in housing and for the impeller cover that covers impeller and be arranged at motor side and the driving plate rotated for drive motor, described driving plate be provided with the drive circuit rotated for drive motor; Described motor comprises stators and rotators, wherein, stator cavity, rotor chamber and impeller cavity is respectively arranged with in described housing, described stator is arranged in stator cavity, described rotor is arranged in rotor chamber, described impeller is arranged in impeller cavity, it is characterized in that, described stator comprises U-shaped iron core, is sheathed on coil holder on two iron core arms of U-shaped iron core and is wrapped in the coil on two coil holders by a wire according to opposite direction respectively respectively; A terminal of described coil is connected with the first end of drive circuit, and another terminal of described coil is connected with the second end of drive circuit; Wherein, described drive circuit detects changes of magnetic field by Hall switch and according to the voltage between the output switching first end of this Hall switch and the second end.
2. minisize dc water pump according to claim 1, is characterized in that, the rotating shaft of described rotor adopts the mode of twice encapsulate to be injected on housing.
3. minisize dc water pump according to claim 1, is characterized in that, described drive circuit comprises Hall switch and the switching circuit for controlling electric motor starting voltage and working power; The positive terminal of described Hall switch is connected with power supply, and the negative pole end of Hall switch is connected with reference to ground, and its output terminal is connected with the input end of switching circuit; Two terminals of described coil are connected with the second end with the first end of switching circuit, and wherein, described coil adopts enameled conducting wire to be wound around and makes.
4. minisize dc water pump according to claim 3, is characterized in that, described switching circuit comprises the first switching circuit, second switch circuit and the 3rd switching circuit; The described input end of the first switching circuit is connected with the output terminal of Hall switch, and the output terminal of described first switching circuit is connected with power supply; The input end of described second switch circuit is connected with the output terminal of the first switching circuit, and its output terminal is connected with power supply; The input end of described 3rd switching circuit is connected with the input end of the first switching circuit, and its output terminal is connected with power supply.
5. minisize dc water pump according to claim 4, it is characterized in that, described first switching circuit comprises the first triode, the first resistance and the 3rd resistance, the base stage of described first triode is connected with the output terminal of Hall switch by the first resistance, its collector electrode is connected with power supply by the 3rd resistance, and its emitter is connected with reference to ground;
Described second switch circuit comprises the second triode, the 3rd triode, the 6th triode, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance and the first electric capacity; The base stage of described second triode is connected between the first triode of the first switching circuit and the 3rd resistance by the 4th resistance, and the collector electrode of the second triode is connected with power supply by the first electric capacity, its emitter by the 6th resistance with reference to be connected;
The base stage of described 3rd triode is connected with the output terminal of Hall switch by the 5th resistance, and its emitter is connected with reference to ground;
The base stage of described 6th triode is connected between the collector electrode of the first electric capacity and the second triode, and the emitter of described 6th triode is connected with power supply, and its collector electrode is connected with the collector electrode of the 3rd triode; Wherein, between the described 8th resistance base stage that is connected to the 6th triode and emitter;
Described 3rd switching circuit comprises the 4th triode, the 5th triode, the 7th triode, the 9th resistance, the tenth resistance, the 11 resistance, the 12 resistance, the 13 resistance and the second electric capacity;
The base stage of described 4th triode is connected with the output terminal of Hall switch by the 12 resistance, and its emitter is connected with reference to ground;
The emitter of described 7th triode is connected with power supply, and its collector electrode is connected with the collector electrode of described 4th triode;
The collector electrode of described 5th triode is connected with the base stage of the 7th triode, its emitter by the 11 resistance with reference to be connected, its base stage is connected with the output terminal of Hall switch by the 13 resistance.
6. minisize dc water pump according to claim 5, is characterized in that, described second resistance is connected to positive terminal and the output terminal of Hall switch.
7. minisize dc water pump according to claim 5, is characterized in that, described 9th resistance is connected base stage and the emitter of the 7th triode with the second electric capacity, and described 8th resistance is connected emitter and the base stage of the 6th triode with the first electric capacity.
8. minisize dc water pump according to claim 5, is characterized in that, one end of described 7th resistance is connected between the base stage of the 3rd triode and the 5th resistance, and the other end is connected with reference to ground; Between the base stage that one end of described tenth resistance is connected to the 4th triode and the 12 resistance, the other end is connected with reference to ground.
9. minisize dc water pump according to claim 5, it is characterized in that, be provided with the first end of switching circuit between described 6th transistor collector and the 3rd transistor collector, between described 7th transistor collector and the 4th transistor collector, be provided with the second end of switching circuit; A terminal of described coil is connected with first end, and another terminal of described coil is connected with the second end.
10. minisize dc water pump according to claim 5, is characterized in that, described first triode, the second triode, the 3rd triode, the 4th triode and the 5th triode adopt NPN type triode respectively; Described 6th triode and the 7th triode adopt PNP type triode respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357242.6U CN205001210U (en) | 2015-05-28 | 2015-05-28 | Micro DC water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357242.6U CN205001210U (en) | 2015-05-28 | 2015-05-28 | Micro DC water pump |
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| Publication Number | Publication Date |
|---|---|
| CN205001210U true CN205001210U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520357242.6U Active CN205001210U (en) | 2015-05-28 | 2015-05-28 | Micro DC water pump |
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| CN (1) | CN205001210U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105725820A (en) * | 2016-03-30 | 2016-07-06 | 苏州合欣美电子科技有限公司 | Electronically-controlled driving type cooking pot |
| TWI688712B (en) * | 2017-09-22 | 2020-03-21 | 徐享淵 | Flat DC brushless motor pump |
-
2015
- 2015-05-28 CN CN201520357242.6U patent/CN205001210U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105725820A (en) * | 2016-03-30 | 2016-07-06 | 苏州合欣美电子科技有限公司 | Electronically-controlled driving type cooking pot |
| TWI688712B (en) * | 2017-09-22 | 2020-03-21 | 徐享淵 | Flat DC brushless motor pump |
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