CN204216815U - A kind of double speed water pump control circuit - Google Patents
A kind of double speed water pump control circuit Download PDFInfo
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- CN204216815U CN204216815U CN201420616534.2U CN201420616534U CN204216815U CN 204216815 U CN204216815 U CN 204216815U CN 201420616534 U CN201420616534 U CN 201420616534U CN 204216815 U CN204216815 U CN 204216815U
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Abstract
The utility model relates to double speed water pump control circuit.The error solved due to manual switching operation often causes water pump to occur safety problem, technical scheme is: a kind of double speed water pump control circuit, comprise protective circuit, power supply, signal processing circuit, man-machine interaction circuit and water pump, power supply is powered as digital power by AC/DC voltage stabilizing circuit, AC/DC voltage stabilizing circuit is connected with protective circuit, the input of signal processing circuit is connected with the output of AC/DC voltage stabilizing circuit, also comprise winding commutation circuit, the output of man-machine interaction circuit is electrically connected with the input of signal processing circuit, the output of signal processing circuit is connected with water pump by winding commutation circuit, winding commutation circuit is the winding commutation circuit of interlocking.Can ensure the safety of water pump time the utility model sets like this, in addition, the utility model have employed rational circuit arrangement, and it is comparatively safe to control, and arranging of potentiometer is adjustable, can adapt to most double speed water pump.
Description
Technical field
The utility model belongs to water pump control circuit, particularly a kind of double speed water pump control circuit of good safety.
Background technology
Double speed pump motor has two groups of pump motor windings, by selecting different windings can realize different rotating speeds, traffic demand, to reach energy-conservation object.Tradition double speed water pump selects pump rotary speed by manual switching switch, but often cause water pump to occur safety problem in the error started and operate due to manual switching in handoff procedure, should start because misoperation becomes the slow-speed of revolution when startup at high speed, water pump is caused to damage, there is larger loss, therefore, a kind of double speed water pump control circuit with good safety is developed imperative.
China Patent Publication No. CN102355173A, publication date: on February 15th, 2012, disclose a kind of motor start circuit of compressor, there is start-up capacitance device, also there is the branch road in parallel with start-up capacitance device, the assistant starting capacitor that this route is cascaded and temperature detect switch (TDS) composition.Because the present invention is provided with assistant starting capacitor on the branch road in parallel with start-up capacitance device, therefore the present invention realizes the normal startup to compressor in air conditioner in a low voltage state.This technical scheme is by being electric motor starting mostly and being adopted in controlling, but this technical scheme like the prior art, have and be not suitable for the disadvantage that double-speed motor starts control, water pump is often caused to occur safety problem in the error started and operate due to manual switching in handoff procedure, should start because misoperation becomes the slow-speed of revolution when startup at high speed, water pump is caused to damage, there is larger loss, therefore, a kind of double speed water pump control circuit with good safety is developed imperative.
Utility model content
The utility model object is to solve and often causes water pump to occur safety problem in the error started and operate due to manual switching in handoff procedure, provides a kind of double speed water pump control circuit with good safety.
The utility model solves the technical scheme that its technical problem adopts: a kind of double speed water pump control circuit, comprise protective circuit, power supply, signal processing circuit, man-machine interaction circuit and water pump, described power supply is powered as digital power by AC/DC voltage stabilizing circuit, described AC/DC voltage stabilizing circuit is connected with described protective circuit, the input of described signal processing circuit is connected with the output of described AC/DC voltage stabilizing circuit, also comprise winding commutation circuit, the output of described man-machine interaction circuit is electrically connected with the input of described signal processing circuit, the output of described signal processing circuit is connected with water pump by winding commutation circuit, described winding commutation circuit is the winding commutation circuit of interlocking.
As preferably, described winding commutation circuit comprises piezo-resistance RV2, piezo-resistance RV3, relay K 1, relay K 2, diode D6, diode D8, triode Q1, triode Q2, triode Q3, resistance R9, resistance R11, resistance R13, resistance R14 and resistance R1, the first end of described piezo-resistance RV2 is connected with power supply, second end of described piezo-resistance RV2 is connected with the low speed end of pump motor winding, the described moving contact of relay K 1 is connected with one end of piezo-resistance RV2, the fixed contact of described relay K 1 coil is connected with the other end of piezo-resistance RV2, coil one end of relay K 1 is connected with digital power, the coil other end of relay K 1 is connected with the collector electrode of triode Q1, the negative electrode of diode D6 is connected with digital power, the anode of diode D6 is connected with the collector electrode of triode Q1, the base stage of triode Q1 is connected with an input/output terminal of signal processing circuit as the first control end by resistance R9, the grounded emitter of triode Q1, the base stage of triode Q1 is also connected with the emitter of triode Q1 with resistance R11 by resistance R9 successively, the first end of described piezo-resistance RV3 is connected with power supply, second end of described piezo-resistance RV3 is connected with the speed end of pump motor winding, the described moving contact of relay K 2 is connected with one end of piezo-resistance RV3, the fixed contact of described relay K 1 coil is connected with the other end of piezo-resistance RV2, coil one end of relay K 2 is connected with digital power, the coil other end of relay K 2 is connected with the collector electrode of triode Q2, the negative electrode of diode D8 is connected with digital power, the anode of diode D8 is connected with the collector electrode of triode Q2, the base stage of triode Q2 is connected with the first end of resistance R13, second end of resistance R13 is connected with an input/output terminal of signal processing circuit as the second control end, the grounded emitter of triode Q2, the base stage of triode Q2 is also connected with the emitter of triode Q2 with resistance R14 by resistance R13 successively, the base stage of triode Q3 is connected with second end of resistance R13 by resistance R1, the collector electrode of triode Q3 is connected with the base stage of triode Q1, the grounded emitter of triode Q3.Pump motor has 2 winding high speed windings, low speed windings, but electric motor starting must could start by high speed winding, just can be switched to low speed winding after startup, and direct low speed winding starts will burn motor.Also have feature to be exactly that high, low speed two windings can not conducting simultaneously, otherwise also can burn motor.The utility model have employed triode Q3 as interlock circuit, when triode Q3 is in strobe state time, triode Q1 cannot be strobed, simple mode is adopted just to ensure that when manual operation error, when have selected high speed and low speed winding simultaneously, water pump can run according to the mode of the conducting of high speed winding, because the mode of high speed winding conducting is run can not damage water pump itself, and the operation of low speed winding can only be just passable under specific circumstances, the possibility damaging water pump is had in nonspecific situation, therefore, the safety of water pump can be ensured time the utility model sets like this, in addition, the utility model have employed rational circuit arrangement, it is comparatively safe to control, arranging of piezo-resistance is adjustable, most double speed water pump can be adapted to.If user directly selects low speed, control first can be connected high speed winding and to be automatically switched after electric motor starting low speed winding, eliminates the inconvenient unsafe situation of manual switching.Piezo-resistance RV1 plays the effect of anti-pulse, EMC interference, and piezo-resistance RV2 and piezo-resistance RV3 is relay contact protection circuit (also can replace with RC), provides discharge loop arc extinguishing to use instantaneously for relay contact disconnects.
As preferably, described man-machine interaction circuit comprises resistance R4, resistance R5, resistance R6, resistance R7, resistance R8 and resistance R10, diverter switch S2, diverter switch S3, diverter switch S4, the moving contact of described diverter switch S2, the moving contact of diverter switch S3 and the equal ground connection of the moving contact of diverter switch S4, first fixed contact of diverter switch S2 is direct or be connected with the first control end of winding commutation circuit by signal processing circuit, second fixed contact of diverter switch S2 is direct or be connected with the second control end of winding commutation circuit by signal processing circuit, first fixed contact of diverter switch S3, second fixed contact of diverter switch S3, first fixed contact of diverter switch S4 is all connected with the corresponding connector of signal processing circuit with second fixed contact of diverter switch S4.Such setting, just sets when man-machine interaction and runs up and the switching of low speed, would not gating second control end when gating the first control end, mechanically serves the effect of interlocking.
As preferably, described signal processing circuit is single chip circuit.The utility model can adopt single-chip microcomputer as an integrated solution, because signal processing circuit in the utility model only needs the collection of responsible control signal, therefore the triode of analog circuit and delay circuit also can be adopted as signal processing circuit, corresponding trigger can also be adopted as signal processing circuit, as the selection of cost optimization, select single chip circuit, in easy situation, also directly first fixed contact of diverter switch S2 can be connected with the first control end, second fixed contact of diverter switch S2 is connected with the second control end.
Substantial effect of the present utility model is: the safety that can ensure water pump time the utility model sets like this, in addition, the utility model have employed rational circuit arrangement, and it is comparatively safe to control, arranging of piezo-resistance is adjustable, can adapt to most double speed water pump.
Accompanying drawing explanation
Fig. 1 is a kind of block schematic illustration of the present embodiment;
Fig. 2 is a kind of circuit theory schematic diagram of winding commutation circuit in the present embodiment.
In figure: 1, power supply, 2, protective circuit, 3, AC/DC voltage stabilizing circuit, 4, man-machine interaction circuit, 5, signal processing circuit, 6, winding commutation circuit, 7, water pump.
Embodiment
Below by specific embodiment, the technical solution of the utility model is described in further detail.
Embodiment:
A kind of double speed water pump control circuit (see accompanying drawing 1 and Fig. 2), a kind of double speed water pump control circuit, comprise protective circuit 2, power supply 1, signal processing circuit 5, man-machine interaction circuit 4 and water pump 7, described power supply is powered as digital power by AC/DC voltage stabilizing circuit 3, described AC/DC voltage stabilizing circuit is connected with described protective circuit, the input of described signal processing circuit is connected with the output of described AC/DC voltage stabilizing circuit, also comprise winding commutation circuit 6, the output of described man-machine interaction circuit is electrically connected with the input of described signal processing circuit, the output of described signal processing circuit is connected with water pump by winding commutation circuit, described winding commutation circuit is the winding commutation circuit of interlocking.Described winding commutation circuit comprises piezo-resistance RV2, piezo-resistance RV3, relay K 1, relay K 2, diode D6, diode D8, triode Q1, triode Q2, triode Q3, resistance R9, resistance R11, resistance R13, resistance R14 and resistance R1, the first end of described piezo-resistance RV2 is connected with power supply, second end of described piezo-resistance RV2 is connected with the low speed end of pump motor winding, the described moving contact of relay K 1 is connected with one end of piezo-resistance RV2, the fixed contact of described relay K 1 coil is connected with the other end of piezo-resistance RV2, coil one end of relay K 1 is connected with digital power, the coil other end of relay K 1 is connected with the collector electrode of triode Q1, the negative electrode of diode D6 is connected with digital power, the anode of diode D6 is connected with the collector electrode of triode Q1, the base stage of triode Q1 is connected with an input/output terminal of signal processing circuit as the first control end by resistance R9, the grounded emitter of triode Q1, the base stage of triode Q1 is also connected with the emitter of triode Q1 with resistance R11 by resistance R9 successively, the first end of described piezo-resistance RV3 is connected with power supply, second end of described piezo-resistance RV3 is connected with the speed end of pump motor winding, the described moving contact of relay K 2 is connected with one end of piezo-resistance RV3, the fixed contact of described relay K 1 coil is connected with the other end of piezo-resistance RV2, coil one end of relay K 2 is connected with digital power, the coil other end of relay K 2 is connected with the collector electrode of triode Q2, the negative electrode of diode D8 is connected with digital power, the anode of diode D8 is connected with the collector electrode of triode Q2, the base stage of triode Q2 is connected with the first end of resistance R13, second end of resistance R13 is connected with an input/output terminal of signal processing circuit as the second control end, the grounded emitter of triode Q2, the base stage of triode Q2 is also connected with the emitter of triode Q2 with resistance R14 by resistance R13 successively, the base stage of triode Q3 is connected with second end of resistance R13 by resistance R1, the collector electrode of triode Q3 is connected with the base stage of triode Q1, the grounded emitter of triode Q3.Described man-machine interaction circuit comprises resistance R4, resistance R5, resistance R6, resistance R7, resistance R8 and resistance R10, diverter switch S2, diverter switch S3, diverter switch S4, the moving contact of described diverter switch S2, the moving contact of diverter switch S3 and the equal ground connection of the moving contact of diverter switch S4, first fixed contact of diverter switch S2 is direct or be connected with the first control end of winding commutation circuit by signal processing circuit, second fixed contact of diverter switch S2 is direct or be connected with the second control end of winding commutation circuit by signal processing circuit, first fixed contact of diverter switch S3, second fixed contact of diverter switch S3, first fixed contact of diverter switch S4 is all connected with the corresponding connector of signal processing circuit with second fixed contact of diverter switch S4.Described signal processing circuit is single chip circuit.
Pump motor in the present embodiment has 2 winding high speed windings, low speed windings, but electric motor starting must could start by high speed winding, just can be switched to low speed winding after startup, and direct low speed winding starts will burn motor.Also have feature to be exactly that high, low speed two windings can not conducting simultaneously, otherwise also can burn motor.The utility model have employed triode Q3 as interlock circuit, when triode Q3 is in strobe state time, triode Q1 cannot be strobed, simple mode is adopted just to ensure that when manual operation error, when have selected high speed and low speed winding simultaneously, water pump can run according to the mode of the conducting of high speed winding, because the mode of high speed winding conducting is run can not damage water pump itself, and the operation of low speed winding can only be just passable under specific circumstances, the possibility damaging water pump is had in nonspecific situation, therefore, the safety of water pump can be ensured time the utility model sets like this, in addition, the utility model have employed rational circuit arrangement, it is comparatively safe to control, arranging of piezo-resistance is adjustable, most double speed water pump can be adapted to.If user directly selects low speed, control first can be connected high speed winding and to be automatically switched after electric motor starting low speed winding, eliminates the inconvenient unsafe situation of manual switching.The present embodiment can also diverter switch instruction running status and the combination of time.
Above-described embodiment is one of the present utility model preferably scheme, not does any pro forma restriction to the utility model, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (4)
1. a double speed water pump control circuit, comprise protective circuit, power supply, signal processing circuit, man-machine interaction circuit and water pump, described power supply is powered as digital power by AC/DC voltage stabilizing circuit, described AC/DC voltage stabilizing circuit is connected with described protective circuit, the input of described signal processing circuit is connected with the output of described AC/DC voltage stabilizing circuit, it is characterized in that: also comprise winding commutation circuit, the output of described man-machine interaction circuit is electrically connected with the input of described signal processing circuit, the output of described signal processing circuit is connected with water pump by winding commutation circuit, described winding commutation circuit is the winding commutation circuit of interlocking.
2. a kind of double speed water pump control circuit according to claim 1, it is characterized in that: described winding commutation circuit comprises piezo-resistance RV2, piezo-resistance RV3, relay K 1, relay K 2, diode D6, diode D8, triode Q1, triode Q2, triode Q3, resistance R9, resistance R11, resistance R13, resistance R14 and resistance R1, the first end of described piezo-resistance RV2 is connected with power supply, second end of described piezo-resistance RV2 is connected with the low speed end of pump motor winding, the described moving contact of relay K 1 is connected with one end of piezo-resistance RV2, the fixed contact of described relay K 1 coil is connected with the other end of piezo-resistance RV2, coil one end of relay K 1 is connected with digital power, the coil other end of relay K 1 is connected with the collector electrode of triode Q1, the negative electrode of diode D6 is connected with digital power, the anode of diode D6 is connected with the collector electrode of triode Q1, the base stage of triode Q1 is connected with an input/output terminal of signal processing circuit as the first control end by resistance R9, the grounded emitter of triode Q1, the base stage of triode Q1 is also connected with the emitter of triode Q1 with resistance R11 by resistance R9 successively, the first end of described piezo-resistance RV3 is connected with power supply, second end of described piezo-resistance RV3 is connected with the speed end of pump motor winding, the described moving contact of relay K 2 is connected with one end of piezo-resistance RV3, the fixed contact of described relay K 1 coil is connected with the other end of piezo-resistance RV2, coil one end of relay K 2 is connected with digital power, the coil other end of relay K 2 is connected with the collector electrode of triode Q2, the negative electrode of diode D8 is connected with digital power, the anode of diode D8 is connected with the collector electrode of triode Q2, the base stage of triode Q2 is connected with the first end of resistance R13, second end of resistance R13 is connected with an input/output terminal of signal processing circuit as the second control end, the grounded emitter of triode Q2, the base stage of triode Q2 is also connected with the emitter of triode Q2 with resistance R14 by resistance R13 successively, the base stage of triode Q3 is connected with second end of resistance R13 by resistance R1, the collector electrode of triode Q3 is connected with the base stage of triode Q1, the grounded emitter of triode Q3.
3. a kind of double speed water pump control circuit according to claim 1, it is characterized in that: described man-machine interaction circuit comprises resistance R4, resistance R5, resistance R6, resistance R7, resistance R8 and resistance R10, diverter switch S2, diverter switch S3, diverter switch S4, the moving contact of described diverter switch S2, the moving contact of diverter switch S3 and the equal ground connection of the moving contact of diverter switch S4, first fixed contact of diverter switch S2 is direct or be connected with the first control end of winding commutation circuit by signal processing circuit, second fixed contact of diverter switch S2 is direct or be connected with the second control end of winding commutation circuit by signal processing circuit, first fixed contact of diverter switch S3, second fixed contact of diverter switch S3, first fixed contact of diverter switch S4 is all connected with the corresponding connector of signal processing circuit with second fixed contact of diverter switch S4.
4. a kind of double speed water pump control circuit according to claim 3, is characterized in that: described signal processing circuit is single chip circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420616534.2U CN204216815U (en) | 2014-10-23 | 2014-10-23 | A kind of double speed water pump control circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420616534.2U CN204216815U (en) | 2014-10-23 | 2014-10-23 | A kind of double speed water pump control circuit |
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| CN204216815U true CN204216815U (en) | 2015-03-18 |
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| CN201420616534.2U Active CN204216815U (en) | 2014-10-23 | 2014-10-23 | A kind of double speed water pump control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017805A (en) * | 2017-06-02 | 2017-08-04 | 沈阳永磁电机制造有限公司 | A kind of high-power square wave brushless direct current motor controller |
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- 2014-10-23 CN CN201420616534.2U patent/CN204216815U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017805A (en) * | 2017-06-02 | 2017-08-04 | 沈阳永磁电机制造有限公司 | A kind of high-power square wave brushless direct current motor controller |
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Address after: 315177 Gu Lin Zhen Zhang Jia Tan Cun, Haishu District, Ningbo City, Zhejiang Province Patentee after: Zhejiang Sipu Intelligent Technology Co.,Ltd. Address before: 315176 Zhang Jia Tan Village, Gulin Town, Ningbo, Zhejiang, Yinzhou District Patentee before: Ningbo Sipulan Swimming Pool Supplies Co.,Ltd. |
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| CP03 | Change of name, title or address |