CN215734083U - Motor controller with motor logic gear selection circuit and motor thereof - Google Patents
Motor controller with motor logic gear selection circuit and motor thereof Download PDFInfo
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- CN215734083U CN215734083U CN202121766321.4U CN202121766321U CN215734083U CN 215734083 U CN215734083 U CN 215734083U CN 202121766321 U CN202121766321 U CN 202121766321U CN 215734083 U CN215734083 U CN 215734083U
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Abstract
The utility model discloses a motor controller with a motor logic gear selection circuit and a motor thereof, comprising a gear selection circuit, a microprocessor MCU and an inverter circuit, wherein the gear selection circuit comprises a logic gear input module, a voltage reduction driving module, a switch control module and a sampling module, a gear signal is input into the logic gear input module, the output end of the logic gear input module is connected with the input end of the voltage reduction driving module, the output end of the voltage reduction driving module is connected with the input end of the switch control module, the output end of the switch control module is connected with the sampling module, the output end of the sampling module is connected with one input port of the microprocessor, the circuit arrangement is simple, the MCU pins of the microprocessor can be reduced, the resource and the cost are reduced, in addition, the sampling module is used for sampling and selecting the input gear signal to control the motor to operate, even if one gear signal of a plurality of gear signals has a fault, and the normal use of other gear signals is not influenced.
Description
The technical field is as follows:
the utility model relates to a motor controller with a motor logic gear selection circuit and a motor thereof.
Background art:
the brushless motor has high efficiency and high rotating speed, and is applied to meet the comfort, gear speed regulation selection is made, common 2-6 gears are input, special more than ten or even more than hundred gear selections are called stepless speed regulation for short, so that pin resources of the MCU are occupied particularly, communication processing is carried out after a communication chip is used for making multiple paths of gears, the pin resources of the MCU are reduced, the cost is high, the circuit is complex, and common gear circuits are shown in the following graph A and graph B.
The above two gear switching circuits have the following two inevitable defects:
firstly), the input of an input end A, B, C, D, E, F in fig. 1 is transmitted to an MCU end through R1-1, R3-1, R5-1, R7-1, R9-1 and R11-1 via a photoelectric coupler, wherein R2-1, R4-1, R6-1, R8-1, R10-1 and R12-1 are pull-up resistors, for example, 6 IO ports of the MCU are occupied when 6 gear signals are input, and more pins are occupied, if one gear signal fails, the failed gear is always in a high level state, so that other gear signals cannot be input into the MCU, and thus other gear signals cannot be converted for use;
second) the input of the input end A, B, C, D, E, F in fig. 2 is transmitted to the communication chip end after passing through R1-2, R2-2, R3-2, R4-2, R5-2 and R6-2, and the signal is processed and then transmitted to the MCU for communication, so that the circuit is complex, the cost is high, the failure rate is high, and if one gear signal fails, the failed gear is always in a high level state, so that other gear signals cannot be input to the MCU, and thus other gear signals cannot be converted for use.
The utility model content is as follows:
the utility model aims to provide a motor controller with a motor logic gear selection circuit and a motor thereof, which can solve the technical problems that in the prior art, when multi-gear signals are input, a plurality of IO ports of an MCU are occupied, a plurality of pins are occupied, and if one gear signal fails, the failed gear is always in a high-level state, so that other gear signals cannot be input into the MCU, and the use of other gear signals cannot be converted.
The purpose of the utility model is realized by the following technical scheme.
The utility model aims to provide a motor controller with a motor logic gear selection circuit, which comprises a gear selection circuit, a microprocessor MCU and an inverter circuit, wherein a plurality of gear signals are processed by the gear selection circuit and sent to the microprocessor MCU, the microprocessor MCU outputs signals to control the inverter circuit to work, and the output end of the inverter circuit is connected with a coil winding of a stator component of a motor, and the motor controller is characterized in that: the gear selection circuit comprises a logic gear input module, a voltage reduction driving module, a switch control module and a sampling module, a plurality of gear signals are input to the input end of the logic gear input module, the output end of the logic gear input module is connected with the input end of the voltage reduction driving module, the output end of the voltage reduction driving module is connected with the input end of the switch control module, the output end of the switch control module is connected with the input end of the sampling module, and the output end of the sampling module is connected with an input port of a microprocessor.
The logic gear input module is composed of a plurality of diodes, each gear signal input can be correspondingly connected with the anode of one or more diodes to realize one-way conduction, and the cathode of each diode is used as an output end.
The switch control module include a plurality of electronic switches, step-down drive module includes multichannel step-down drive circuit, sampling module includes multichannel sampling circuit, step-down drive circuit is connected all the way to every electronic switch's control end, sampling circuit work is all the way in every electronic switch's output control, each way sampling circuit's output gathers and is connected as sampling module's output and an input port of microprocessor together, every way step-down drive circuit's input is through a plurality of diode connection multichannel gear signal inputs.
The electronic switch is a switch tube, the sampling circuit is formed by connecting two resistors in series, one end of the sampling circuit is connected with a power supply VCC, the other end of the sampling circuit is connected with a collector of the switch tube, an emitter of the switch tube is grounded, and a base of the switch tube is connected with an output end of one path of voltage reduction driving circuit.
Each step-down driving circuit comprises a voltage stabilizing tube ZD2, a current limiting resistor R20 and a capacitor C10, wherein the gear signal input is correspondingly connected with the anodes of one or more diodes, the cathode of the diode is used as the output end to be connected with one end of the current limiting resistor R20, the other end of the current limiting resistor R20 is connected with the base electrode of a switch tube, one end of the voltage stabilizing tube ZD2 is grounded, the other end of the voltage stabilizing tube ZD2 is connected between the current limiting resistor R20 and the base electrode of the switch tube, and the capacitor C10 is connected at two ends of the voltage stabilizing tube ZD2 in parallel.
Each voltage reduction driving circuit comprises a voltage regulator tube ZD1, a current limiting resistor R10, a voltage regulator tube ZD2, a current limiting resistor R20 and a capacitor C10, wherein the input of a gear signal is correspondingly connected with the anode of one or more diodes, the cathode of the diode is used as an output end and is connected with the base electrode of a switch tube sequentially through the voltage regulator tube ZD1, the current limiting resistor R10 and the current limiting resistor R20, one end of the voltage regulator tube ZD2 is grounded, the other end of the voltage regulator tube ZD2 is connected between the current limiting resistor R10 and the current limiting resistor R20, and the capacitor C10 is connected at two ends of the voltage regulator tube ZD2 in parallel.
The electronic switch comprises a switch tube Q1, a switch tube Q2 and a switch tube Q3, the number of sampling circuits is 3, the first sampling circuit is formed by connecting a resistor R1 and a resistor R2 in series, the second sampling circuit is formed by connecting a resistor R1 and a resistor R3 in series, the third sampling circuit is formed by connecting a resistor R1 and a resistor R4 in series, the collector of the switch tube Q1 is connected to one end of the resistor R1 and the resistor R2 in series, the collector of the switch tube Q2 is connected to one end of the resistor R1 and the resistor R3 in series, and the collector of the switch tube Q3 is connected to one end of the resistor R1 and the resistor R4 in series.
The output ends of the 3-path sampling circuit are collected and then serve as the output end of the sampling module, the output end of the sampling module is connected with one end of the energy storage capacitor C1, and the other end of the capacitor C1 is grounded.
The gear signal input has 7 paths, which are A, B, C, D, E, F, G respectively; the logic gear input modules include diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, diode D7, diode D8, diode D9, diode D10, diode D11, and diode D12.
The utility model provides a motor, includes motor body and machine controller, motor body includes stator module, rotor subassembly and casing, its characterized in that: the motor controller is the above-described motor controller.
Compared with the prior art, the utility model has the following effects:
1) the utility model provides a take motor controller of motor logic gear selection circuit, includes gear selection circuit, microprocessor MCU and inverter circuit, and microprocessor MCU is sent to a plurality of gear signal through gear selection circuit's processing, and microprocessor MCU output signal control inverter circuit work, the coil winding of the stator module of motor, its characterized in that are connected to inverter circuit's output: the gear selection circuit comprises a logic gear input module, a voltage reduction driving module, a switch control module and a sampling module, a plurality of gear signals are input to the input end of the logic gear input module, the output end of the logic gear input module is connected with the input end of the voltage reduction driving module, the output end of the voltage reduction driving module is connected with the input end of the switch control module, the output end of the switch control module is connected with the input end of the sampling module, the output end of the sampling module is connected with one input port of a microprocessor, MCU pins of the microprocessor can be reduced, resources can be saved, the cost is reduced, in addition, the sampling module is used for sampling and selecting the input gear signals to control the motor to run, and even if one of the gear signals of the plurality of gear signals breaks down, the normal use of other gear signals cannot be influenced;
2) other advantages of the present invention are described in detail in the examples section.
Description of the drawings:
FIG. 1 is a schematic diagram of a shift level circuit of the prior art;
FIG. 2 is a schematic diagram of another gear circuit of the prior art;
FIG. 3 is a block diagram of a gear selection circuit and a motor control module according to an embodiment of the present invention;
FIG. 4 is a schematic block diagram of a gear selection circuit provided in the first embodiment of the present invention;
FIG. 5 is a schematic diagram of a gear selection circuit and a motor control module according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a gear selection circuit and a motor control module according to a second embodiment of the present invention.
The specific implementation mode is as follows:
the present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
Example one
As shown in fig. 3, fig. 4 and fig. 5, the present embodiment provides a motor controller with a motor logic gear selection circuit, which includes a gear selection circuit, a microprocessor MCU and an inverter circuit, wherein a plurality of gear signals are processed by the gear selection circuit and sent to the microprocessor MCU, the microprocessor MCU outputs a signal to control the inverter circuit to operate, and the output end of the inverter circuit is connected to the coil winding of the stator assembly of the motor, and the motor controller is characterized in that: the gear selection circuit comprises a logic gear input module, a voltage reduction driving module, a switch control module and a sampling module, a plurality of gear signals are input to the input end of the logic gear input module, the output end of the logic gear input module is connected with the input end of the voltage reduction driving module, the output end of the voltage reduction driving module is connected with the input end of the switch control module, the output end of the switch control module is connected with the input end of the sampling module, the output end of the sampling module is connected with an input port of a microprocessor, MCU pins of the microprocessor can be reduced, resources are saved, the cost is reduced, in addition, the input gear signals are sampled and selected through the sampling module to control the motor to run, even when one of the gear signals of the plurality of gear signals breaks down, the normal use of other gear signals cannot be influenced.
The logic gear input module is composed of a plurality of diodes, each gear signal input can be correspondingly connected with the anode of one or more diodes to realize one-way conduction, and the cathode of each diode is used as an output end, so that the arrangement is reasonable, and the gear signals can be conveniently input.
The switch control module include a plurality of electronic switch, step-down drive module includes multichannel step-down drive circuit, sampling module includes multichannel sampling circuit, step-down drive circuit is connected all the way to every electronic switch's control end, sampling circuit work is all the way in every electronic switch's output control, each way sampling circuit's output gathers and is regarded as sampling module's output and an input port connection of microprocessor together, every way step-down drive circuit's input is through the input of a plurality of diode connection multichannel gear signal, it is reasonable to arrange, the circuit is simple.
The electronic switch be the switch tube, the switch tube be triode or MOS etc. sampling circuit is established ties by two resistance, power VCC is connected to one end, the collecting electrode of switch tube is connected to the other end, the projecting pole ground connection of switch tube, the base of switch tube is connected with the output of the step-down drive circuit of the same kind, select input control through electronic switch, arrange rationally.
Each voltage reduction driving circuit comprises a voltage regulator tube ZD1, a current limiting resistor R10, a voltage regulator tube ZD2, a current limiting resistor R20 and a capacitor C10, a gear signal input is correspondingly connected with the anode of one or more diodes, the cathode of the diode is used as an output end and is connected with the base electrode of a switch tube sequentially through the voltage regulator tube ZD1, the current limiting resistor R10 and the current limiting resistor R20, one end of the voltage regulator tube ZD2 is grounded, the other end of the voltage regulator tube ZD2 is connected between the current limiting resistor R10 and the current limiting resistor R20, the capacitor C10 is connected at two ends of the voltage regulator tube ZD2 in parallel, and surge and voltage stabilization can be prevented through the voltage regulator tube ZD1 and the voltage regulator tube ZD 2.
The electronic switch comprises a switch tube Q1, a switch tube Q2 and a switch tube Q3, the number of sampling circuits is 3, the first sampling circuit is formed by connecting a resistor R1 and a resistor R2 in series, the second sampling circuit is formed by connecting a resistor R1 and a resistor R3 in series, the third sampling circuit is formed by connecting a resistor R1 and a resistor R4 in series, the collector of the switch tube Q1 is connected to one end of the resistor R1 and the resistor R2 in series, the collector of the switch tube Q2 is connected to one end of the resistor R1 and the resistor R3 in series, the collector of the switch tube Q3 is connected to one end of the resistor R1 and the resistor R4 in series, input control is selected through the electronic switch, and the circuit arrangement is reasonable.
The output ends of the 3-path sampling circuit are collected and then serve as the output end of the sampling module, the output end of the sampling module is connected with one end of the energy storage capacitor C1, and the other end of the capacitor C1 is grounded.
The gear signal input has 7 paths, which are A, B, C, D, E, F, G respectively; the logic gear input module comprises a diode D1, a diode D2, a diode D3, a diode D4, a diode D5, a diode D6, a diode D7, a diode D8, a diode D9, a diode D10, a diode D11 and a diode D12, and the diodes which realize unidirectional conduction and are reasonable in arrangement.
The principle of realizing the logic transformation of 7 gears is as follows:
the logic gear input module inputs a gear A signal and transmits the gear A signal to a diode D1 and a diode D11, the gear A signal passes through a voltage reduction driving module and then drives a switch tube Q1 and a switch tube Q3 in a switch control module circuit to switch, and a sampling module is controlled to complete signal acquisition;
the logic gear input module inputs a gear B signal and transmits the gear B signal to a diode D2, the gear B signal passes through a voltage reduction driving module and then drives a switch tube Q1 switch in a switch control module circuit to control a sampling module, and one-time signal acquisition is completed;
the logic gear input module inputs a gear C signal and transmits the gear C signal to a diode D3, a diode D6 and a diode D12, the gear C signal passes through a voltage reduction driving module and then drives a switch tube Q1, a switch tube Q2 and a switch tube Q3 in a switch control module circuit to control a sampling module, and primary signal acquisition is completed;
the logic gear input module inputs a gear D signal and transmits the gear D signal to a diode D4 and a diode D5, the gear D signal passes through a voltage reduction driving module and then drives a switch tube Q1 and a switch tube Q2 in a switch control module circuit to switch, and a sampling module is controlled to complete signal acquisition;
a gear E signal input by the logic gear input module is transmitted to a diode D7, passes through a voltage reduction driving module and then drives a switch tube Q2 switch in a switch control module circuit to control a sampling module, and primary signal acquisition is completed;
the logic gear input module inputs a gear F signal and transmits the gear F signal to a diode D8 and a diode D9, the gear F signal passes through a voltage reduction driving module and then drives a switch tube Q2 and a switch tube Q3 in a switch control module circuit to switch, and a sampling module is controlled to complete signal acquisition;
the logic gear input module inputs a gear G signal and transmits the gear G signal to a diode D10, the gear G signal passes through a voltage reduction driving module and then drives a switch tube Q3 switch in a switch control module circuit to control a sampling module, and one-time signal acquisition is completed.
The logic mode is converted into 7 gear input modes by using three switching tubes and transmitted to the microprocessor MCU, and the modes are shown in Table 1.
Watch 1
Example two:
as shown in fig. 6, the present embodiment is a further improvement based on the first embodiment, and the difference is that:
each step-down driving circuit comprises a voltage stabilizing tube ZD2, a current limiting resistor R20 and a capacitor C10, the gear signal input is correspondingly connected with the anodes of one or more diodes, the cathode of the diode is used as the output end to be connected with one end of the current limiting resistor R20, the other end of the current limiting resistor R20 is connected with the base electrode of a switch tube, one end of the voltage stabilizing tube ZD2 is grounded, the other end of the voltage stabilizing tube ZD2 is connected between the current limiting resistor R20 and the base electrode of the switch tube, and the capacitor C10 is connected at the two ends of the voltage stabilizing tube ZD2 in parallel.
Example three:
the utility model provides a motor, includes motor body and machine controller, motor body includes stator module, rotor subassembly and casing, its characterized in that: the motor controller is the motor controller described in the first or second embodiment.
The above embodiments are only preferred embodiments of the present invention, but the present invention is not limited thereto, and any other changes, modifications, substitutions, combinations, simplifications, which are made without departing from the spirit and principle of the present invention, are all equivalent replacements within the protection scope of the present invention.
Claims (10)
1. The utility model provides a take motor controller of motor logic gear selection circuit, includes gear selection circuit, microprocessor MCU and inverter circuit, and microprocessor MCU is sent to a plurality of gear signal through gear selection circuit's processing, and microprocessor MCU output signal control inverter circuit work, the coil winding of the stator module of motor, its characterized in that are connected to inverter circuit's output: the gear selection circuit comprises a logic gear input module, a voltage reduction driving module, a switch control module and a sampling module, a plurality of gear signals are input to the input end of the logic gear input module, the output end of the logic gear input module is connected with the input end of the voltage reduction driving module, the output end of the voltage reduction driving module is connected with the input end of the switch control module, the output end of the switch control module is connected with the input end of the sampling module, and the output end of the sampling module is connected with an input port of a microprocessor.
2. The motor controller with motor logic gear selection circuit of claim 1, characterized in that: the logic gear input module is composed of a plurality of diodes, each gear signal input can be correspondingly connected with the anode of one or more diodes to realize one-way conduction, and the cathode of each diode is used as an output end.
3. The motor controller with motor logic gear selection circuit of claim 2, characterized in that: the switch control module comprises a plurality of electronic switches, the voltage reduction driving module comprises a plurality of voltage reduction driving circuits, the sampling module comprises a plurality of sampling circuits, the control end of each electronic switch is connected with one of the voltage reduction driving circuits, the output end of each electronic switch controls the operation of the other sampling circuit, the output ends of the sampling circuits are gathered together to be used as the output end of the sampling module to be connected with an input port of the microprocessor, and the input end of each voltage reduction driving circuit is connected with the input end of a plurality of gear signals through a plurality of diodes.
4. The motor controller with motor logic range selection circuit of claim 3, wherein: the electronic switch is a switch tube, the sampling circuit is formed by connecting two resistors in series, one end of the sampling circuit is connected with a power supply VCC, the other end of the sampling circuit is connected with a collector of the switch tube, an emitter of the switch tube is grounded, and a base of the switch tube is connected with an output end of one path of voltage reduction driving circuit.
5. The motor controller with motor logic range selection circuit of claim 4, wherein: each step-down driving circuit comprises a voltage stabilizing tube ZD2, a current-limiting resistor R20 and a capacitor C10, the gear signal input is correspondingly connected with the anodes of one or more diodes, the cathode of the diode is used as the output end to be connected with one end of the current-limiting resistor R20, the other end of the current-limiting resistor R20 is connected with the base electrode of a switch tube Q, one end of the voltage stabilizing tube ZD2 is grounded, the other end of the voltage stabilizing tube ZD2 is connected between the current-limiting resistor R20 and the base electrode of the switch tube, and the capacitor C10 is connected at two ends of the voltage stabilizing tube ZD2 in parallel.
6. The motor controller with motor logic range selection circuit of claim 4, wherein: each step-down driving circuit comprises a voltage stabilizing tube ZD1, a current limiting resistor R10, a voltage stabilizing tube ZD2, a current limiting resistor R20 and a capacitor C10, a gear signal input is correspondingly connected with the anode of one or more diodes, the cathode of the diode is used as an output end and is connected with the base electrode of a switch tube sequentially through the voltage stabilizing tube ZD1, the current limiting resistor R10 and the current limiting resistor R20, one end of the voltage stabilizing tube ZD2 is grounded, the other end of the voltage stabilizing tube ZD2 is connected between the current limiting resistor R10 and the current limiting resistor R20, and the capacitor C10 is connected at two ends of the voltage stabilizing tube ZD2 in parallel.
7. A motor controller with a motor logic range selection circuit according to claim 4, 5 or 6, characterized in that: the electronic switch comprises a switch tube Q1, a switch tube Q2 and a switch tube Q3, the number of sampling circuits is 3, the first sampling circuit is formed by connecting a resistor R1 and a resistor R2 in series, the second sampling circuit is formed by connecting a resistor R1 and a resistor R3 in series, the third sampling circuit is formed by connecting a resistor R1 and a resistor R4 in series, the collector of the switch tube Q1 is connected to one end of the resistor R1 and the resistor R2 in series, the collector of the switch tube Q2 is connected to one end of the resistor R1 and the resistor R3 in series, and the collector of the switch tube Q3 is connected to one end of the resistor R1 and the resistor R4 in series.
8. The motor controller with motor logic range selection circuit of claim 7, wherein: the output end of the 3-path sampling circuit is collected and then serves as the output end of the sampling module, the output end of the sampling module is connected with one end of the energy storage capacitor C1, and the other end of the capacitor C1 is grounded.
9. The motor controller with motor logic range selection circuit of claim 8, wherein: the gear signal input has 7 paths, which are A, B, C, D, E, F, G respectively; the logic gear input modules include diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, diode D7, diode D8, diode D9, diode D10, diode D11, and diode D12.
10. The utility model provides a motor, includes motor body and machine controller, motor body includes stator module, rotor subassembly and casing, its characterized in that: the motor controller is as claimed in any one of claims 1 to 9.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023015877A1 (en) * | 2021-08-12 | 2023-02-16 | 中山大洋电机股份有限公司 | Motor controller provided with novel gear selection circuit and bldc motor |
| CN116094491A (en) * | 2023-04-10 | 2023-05-09 | 国网江苏省电力有限公司电力科学研究院 | Phase shifter topological structure based on thyristor voltage regulation and application method thereof |
-
2021
- 2021-07-31 CN CN202121766321.4U patent/CN215734083U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023015877A1 (en) * | 2021-08-12 | 2023-02-16 | 中山大洋电机股份有限公司 | Motor controller provided with novel gear selection circuit and bldc motor |
| CN116094491A (en) * | 2023-04-10 | 2023-05-09 | 国网江苏省电力有限公司电力科学研究院 | Phase shifter topological structure based on thyristor voltage regulation and application method thereof |
| CN116094491B (en) * | 2023-04-10 | 2023-06-23 | 国网江苏省电力有限公司电力科学研究院 | Phase shifter topological structure based on thyristor voltage regulation and application method thereof |
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