CN221042681U - Start power supply control circuit system of mini-tiller - Google Patents
Start power supply control circuit system of mini-tiller Download PDFInfo
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- CN221042681U CN221042681U CN202323082138.4U CN202323082138U CN221042681U CN 221042681 U CN221042681 U CN 221042681U CN 202323082138 U CN202323082138 U CN 202323082138U CN 221042681 U CN221042681 U CN 221042681U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims description 42
- 238000005070 sampling Methods 0.000 claims description 15
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model provides a micro-cultivator starting power supply control circuit system, which comprises a DC-DC conversion unit, a control unit and a key unit, wherein the key unit comprises a conventional starting key and an enhanced starting key; the DC-DC conversion unit is connected with the power supply module, converts the voltage output by the power supply module and inputs the converted voltage to the control unit; the first input end of the control unit is connected with a conventional starting key, and the second input end of the control unit is connected with an enhanced starting key; the control output end of the control unit is connected with the control end of a switch module, the power end of the switch module is connected with a power supply, and the voltage output end is connected with the motor starting end. The micro-cultivator starting power supply control circuit provides two starting modes for the starting of the micro-cultivator through the arrangement of the conventional starting key and the enhanced starting key, and the enhanced starting is carried out through the enhanced starting key when the conventional starting cannot be started.
Description
Technical Field
The utility model relates to the field of motor starting control, in particular to a micro-cultivator starting power supply control circuit system.
Background
The engine starting mode comprises electric starting, in the prior art, the control scheme of the electric starting system of the existing agricultural machine (such as a mini-tiller) is simple, and the condition of starting failure easily occurs when a motor is started due to various upper reasons such as complex operation field, ageing equipment circuit and the like during farming, and the power chip of the electric starting agricultural machine is easily damaged due to the defects of the existing agricultural machine starting.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a micro-cultivator starting power supply control circuit system.
In order to achieve the above object, the present utility model provides the following technical solutions: the micro-cultivator starting power supply control circuit system comprises a DC-DC conversion unit, a control unit and a key unit, wherein the key unit comprises a conventional starting key and an enhanced starting key;
The DC-DC conversion unit is connected with the power supply module, converts the voltage output by the power supply module and inputs the converted voltage to the control unit; the first input end of the control unit is connected with the conventional starting key, and the second input end of the control unit is connected with the enhanced starting key;
The control output end of the control unit is connected with the control end of a switch module, the power end of the switch module is connected with a power supply, and the voltage output end is connected with the motor starting end.
The micro-cultivator starting power supply control circuit provides two starting modes for the starting of the micro-cultivator through the arrangement of the conventional starting key and the enhanced starting key, and the enhanced starting is carried out through the enhanced starting key when the conventional starting cannot be started.
Optionally, the switch module comprises a relay and a triode;
The control output end of the control unit is connected with the base electrode of the triode, the emitting electrode of the triode is grounded, the collecting electrode of the triode is connected to one end of the coil of the relay, the other end of the coil of the relay is connected with the voltage of the circuit, and the normally open contact of the relay is connected between the motor starting end and the voltage output end of the power supply module.
In the alternative scheme, the switch module has simple structure, low generation and good control effect.
Optionally, the system further comprises a first timer and a second timer, wherein the first timer and the second timer are respectively and electrically connected with the control unit.
In the alternative scheme, when a conventional starting key is pressed, the control unit controls the switch module to be closed, so that the starting end of the motor is communicated with the power supply, and simultaneously controls the first timer to count time, and when the counted time of the first timer reaches a first set time length, the control unit controls the switch module to be opened, so that conventional starting is realized; when the enhancement starting key is pressed down, the control unit controls the switch module to be closed, the starting end of the motor is communicated with the power supply, the second timer is controlled to count, when the count of the second timer reaches the second setting time length, the control unit controls the switch module to be opened, and enhancement starting is achieved, wherein the second setting time length is longer than the first setting time length.
Optionally, the device further comprises a voltage sampling unit, wherein the input end of the voltage sampling unit is connected with the power output end of the power module, and the output end of the voltage sampling unit is connected with the third input end of the control unit.
This alternative allows for real-time monitoring of the supply voltage.
Optionally, the voltage sampling unit includes a sixth resistor, a seventh resistor, an eighth resistor and a ninth capacitor, the power output end of the power module is connected to one end of the sixth resistor, the other end of the sixth resistor is connected to one end of the eighth resistor, the other end of the eighth resistor is grounded, the ninth capacitor is connected in parallel to two ends of the eighth resistor, one end of the seventh resistor is connected to the other end of the sixth resistor, and the other end of the seventh resistor is connected to the third input end of the control unit.
The voltage sampling unit in the alternative scheme has simple structure and low production cost.
Optionally, the DC-DC conversion unit includes a first diode, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, and a power chip;
The power supply output end of the power supply module is connected with the anode of the first diode, the cathode of the first diode is connected with the voltage input end of the power supply chip, the anode of the fifth capacitor and one end of the second capacitor, the voltage output end of the power supply chip is connected with one end of the fourth capacitor and the anode of the third capacitor, and the cathode of the fifth capacitor, the other end of the second capacitor, the other end of the fourth capacitor and the cathode of the third capacitor are grounded.
The DC-DC conversion unit in the alternative scheme has simple structure and low production cost.
Optionally, a power output end of the power module is connected with a cathode of the second diode, and an anode of the second diode is grounded.
The alternative scheme can inhibit pulse voltage released by the relay and the motor and protect the power chip.
Optionally, the device further comprises an indicator light module, wherein the indicator light module at least comprises an indicator light, and the indicator light is connected to the control signal output end corresponding to the control unit.
Optionally, the indicator light module includes indicator light one, indicator light two and indicator light three, indicator light one, indicator light two and indicator light three be connected respectively in the control signal output that the control unit corresponds.
The beneficial effects of the utility model are as follows: according to the utility model, through the arrangement of the conventional starting key and the enhanced starting key, two starting modes are provided for the starting of the mini-tiller, and when the conventional starting cannot be started, the enhanced starting is carried out through the enhanced starting key. The utility model has simple structure, can inhibit the pulse voltage released by the relay and the motor, and protects the power chip. The actual starting situation of the micro-cultivator motor can be known through the indicator lamp module, such as whether the power supply module is sufficient in voltage, whether the starting key can be normally used, and the like.
Drawings
FIG. 1 is a functional block diagram of the present utility model;
Fig. 2 is a schematic circuit diagram of a DC-DC conversion unit;
FIG. 3 is a schematic circuit diagram of a control unit;
Fig. 4 is a schematic circuit diagram of a switching unit;
Fig. 5 is a schematic circuit diagram of a voltage sampling unit.
Detailed Description
The utility model will be described in further detail with reference to specific embodiments and drawings.
As shown in fig. 1, the application provides a micro-cultivator starting power supply control circuit system, which comprises a DC-DC conversion unit, a control unit and a key unit, wherein the key unit comprises a conventional starting key and an enhanced starting key.
The DC-DC conversion unit is connected with the power supply module and is used for converting the voltage output by the power supply module and inputting the converted voltage to the control unit; the first input end of the control unit is connected with a conventional starting key, and the second input end of the control unit is connected with an enhanced starting key; the control output end of the control unit is connected with the control end of a switch module, the power end of the switch module is connected with a power supply, and the voltage output end is connected with the motor starting end.
The DC-DC conversion unit converts the voltage supplied by the power supply module into the voltage required by the control unit and supplies the voltage to the control unit; when the conventional starting key or the enhanced starting key is pressed, the control unit controls the switch module to be closed, so that the starting end of the motor is powered on.
In this embodiment, as shown in fig. 2, the DC-DC conversion unit includes a first diode D1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, and a power chip U1.
The power output end of the power supply module is connected with the anode of the first diode D1, the cathode of the first diode D1 is connected with the voltage input end of the power supply chip U1, the anode of the fifth capacitor C5 and one end of the second capacitor C2, the voltage output end of the power supply chip U1 is connected with one end of the fourth capacitor C4 and the anode of the third capacitor C3, and the cathode of the fifth capacitor C5, the other end of the second capacitor C2, the other end of the fourth capacitor C4 and the cathode of the third capacitor C3 are grounded. As shown in fig. 2 and 3, the voltage output terminal of the power chip U1 is connected to the voltage input terminal of the control unit.
In this embodiment, as shown in fig. 3 and 4, the switch module includes a relay K1 and a triode Q1; the control output end of the control unit is connected with the base electrode of the triode Q1, the emitter electrode of the triode Q1 is grounded, the collector electrode of the triode Q1 is connected to one end of a coil of the relay K1, the other end of the coil of the relay K1 is connected with the voltage of a circuit, a third diode is connected between two ends of the coil of the relay K1, the positive electrode of the third diode is connected with the collector electrode of the triode Q1, the normally open contact 3 of the relay K1 is connected between the motor starting end and the voltage output end of the power supply module, the normally open contact 3 of the relay K1 is connected with the negative electrode of the fourth diode D4 through one end connected with the motor starting end, and the positive electrode of the fourth diode D4 is grounded.
When the normal starting key or the enhanced starting key is pressed, the control unit outputs a high level to the base electrode of the triode Q1, the triode Q1 is connected, the coil of the relay K1 is electrified, the normally open contact 3 is closed, the motor starting end is connected with the power supply module, the motor starting end is electrified, and the motor is started.
When the motor is started conventionally and started in an enhanced manner, the starting time of the motor can be set according to the requirement, for example, when the motor is started conventionally, the control unit continuously outputs a high level to the base electrode of the triode Q1 for 1.2s; and when the enhancement starts, the control unit continuously outputs a high level to the base electrode of the triode Q1 for a period of 2s. The time length is set as the prior art, and the prior art is adopted for setting.
Of course, the setting of the above-mentioned time period may also be achieved by setting a first timer and a second timer, wherein the first timer and the second timer are electrically connected to the control unit, respectively. When a conventional starting key is pressed, the control unit outputs a high level to the base electrode of the triode Q1, and simultaneously controls the first timer to count, and when the count of the first timer reaches a first set duration, such as 1.2s, the control unit stops outputting the high level to the base electrode of the triode Q1; when the enhanced start button is pressed, the control unit outputs a high level to the base electrode of the triode Q1, and simultaneously controls the second timer to count, and when the second timer counts for a second set time period, such as 2s, the control unit stops outputting the high level to the base electrode of the triode Q1. The second set time period is longer than the first set time period. Thus, the conventional starting key is pressed, the control unit outputs the starting voltage of the first set time period (such as 1.2 s), the enhanced starting key is pressed, and the control unit outputs the starting voltage of the second set time period (such as 2 s).
In order to protect the power chip U1, the power output end of the power module is connected with the cathode of the second diode D2, and the anode of the second diode D2 is grounded, so that pulse voltages released by the relay K1 and the motor are restrained, and the power chip U1 is protected.
In an alternative scheme of the embodiment, the micro-cultivator starting power supply control circuit further comprises a voltage sampling unit, wherein the input end of the voltage sampling unit is connected with the power supply output end of the power supply module, and the output end of the voltage sampling unit is connected with the third input end of the control unit.
As shown in fig. 5, in this alternative solution, the voltage sampling unit includes a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, and a ninth capacitor R9, where the power output end of the power module is connected to one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected to one end of the eighth resistor R8, the other end of the eighth resistor R8 is grounded, the ninth capacitor C9 is connected in parallel to two ends of the eighth resistor R8, one end of the seventh resistor R7 is connected to the other end of the sixth resistor R6, and the other end of the seventh resistor R7 is connected to the third input end of the control unit, and the voltage signal input end.
The control unit judges whether the power supply module needs to be charged or replaced according to the voltage signal acquired by the voltage sampling unit.
In this embodiment, an indicator light module may be provided to indicate the state of the mini-tiller when the power supply control circuit is started. The indicator lamp module at least comprises an indicator lamp which is connected with the control signal output end corresponding to the control unit.
Three upper indicator lights are given in this embodiment: the first indicator lamp, the second indicator lamp and the third indicator lamp are respectively connected to the control signal output ends corresponding to the control unit.
After the micro-cultivator starting power supply control circuit is ready, the control unit controls the first indicator lamp to be lighted, at the moment, the function of a conventional starting key or an enhanced starting key is effective, and the first indicator lamp can be set to be a green lamp.
When the power module needs to be charged or replaced, the control unit controls the second indicator lamp to be lighted, the power module is excessively low in voltage, the battery needs to be replaced or the second indicator lamp needs to be charged, and the second indicator lamp can be set to be a red lamp.
When the control unit outputs the starting voltage, the control indicator lamp is lightened for a set duration, and at the moment, the function of the conventional starting key or the function of the enhanced starting key is invalid, so that the waiting time delay after the control unit outputs the starting voltage is used for avoiding the damage of the power supply module and the starting motor due to the continuous high-current output. The indicator light III can be set as a yellow light.
The foregoing has described in detail the technical solutions provided by the embodiments of the present utility model, and specific examples have been applied to illustrate the principles and implementations of the embodiments of the present utility model, where the above description of the embodiments is only suitable for helping to understand the principles of the embodiments of the present utility model; meanwhile, as for those skilled in the art, according to the embodiments of the present utility model, there are variations in the specific embodiments and the application scope, and the present description should not be construed as limiting the present utility model.
Claims (9)
1. The micro-cultivator starting power supply control circuit system is characterized by comprising a DC-DC conversion unit, a control unit and a key unit, wherein the key unit comprises a conventional starting key and an enhanced starting key;
The DC-DC conversion unit is connected with the power supply module, converts the voltage output by the power supply module and inputs the converted voltage to the control unit; the first input end of the control unit is connected with the conventional starting key, and the second input end of the control unit is connected with the enhanced starting key;
The control output end of the control unit is connected with the control end of a switch module, the power end of the switch module is connected with a power supply, and the voltage output end is connected with the motor starting end.
2. The micro-cultivator starting power control circuitry of claim 1 wherein the switch module comprises a relay and a triode;
The control output end of the control unit is connected with the base electrode of the triode, the emitting electrode of the triode is grounded, the collecting electrode of the triode is connected to one end of the coil of the relay, the other end of the coil of the relay is connected with the voltage of the circuit, and the normally open contact of the relay is connected between the motor starting end and the voltage output end of the power supply module.
3. The micro-cultivator starting power control circuit system of claim 1, further comprising a first timer and a second timer, wherein the first timer and the second timer are respectively electrically connected with the control unit.
4. The micro-cultivator starting power supply control circuit system according to claim 1, further comprising a voltage sampling unit, wherein an input end of the voltage sampling unit is connected with a power supply output end of the power supply module, and an output end of the voltage sampling unit is connected with a third input end of the control unit.
5. The micro-cultivator starting power supply control circuit system according to claim 4, wherein the voltage sampling unit comprises a sixth resistor, a seventh resistor, an eighth resistor and a ninth capacitor, wherein the power output end of the power module is connected with one end of the sixth resistor, the other end of the sixth resistor is connected with one end of the eighth resistor, the other end of the eighth resistor is grounded, the ninth capacitor is connected in parallel with two ends of the eighth resistor, one end of the seventh resistor is connected with the other end of the sixth resistor, and the other end of the seventh resistor is connected with the third input end of the control unit.
6. The micro-cultivator starting power supply control circuit system according to claim 1, wherein the DC-DC conversion unit comprises a first diode, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor and a power chip;
The power supply output end of the power supply module is connected with the anode of the first diode, the cathode of the first diode is connected with the voltage input end of the power supply chip, the anode of the fifth capacitor and one end of the second capacitor, the voltage output end of the power supply chip is connected with one end of the fourth capacitor and the anode of the third capacitor, and the cathode of the fifth capacitor, the other end of the second capacitor, the other end of the fourth capacitor and the cathode of the third capacitor are grounded.
7. The micro-cultivator starting power control circuit system of any of claims 1-6, wherein the power output end of the power module is connected to the cathode of a second diode, and the anode of the second diode is grounded.
8. The micro-cultivator starting power supply control circuit system according to claim 4 or 5, further comprising an indicator light module, wherein the indicator light module at least comprises an indicator light, and the indicator light is connected to a control signal output end corresponding to the control unit.
9. The micro-cultivator starting power supply control circuit system according to claim 8, wherein the indicator light module comprises an indicator light I, an indicator light II and an indicator light III, and the indicator light I, the indicator light II and the indicator light III are respectively connected to the control signal output ends corresponding to the control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323082138.4U CN221042681U (en) | 2023-11-13 | 2023-11-13 | Start power supply control circuit system of mini-tiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323082138.4U CN221042681U (en) | 2023-11-13 | 2023-11-13 | Start power supply control circuit system of mini-tiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221042681U true CN221042681U (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323082138.4U Active CN221042681U (en) | 2023-11-13 | 2023-11-13 | Start power supply control circuit system of mini-tiller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221042681U (en) |
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2023
- 2023-11-13 CN CN202323082138.4U patent/CN221042681U/en active Active
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