CN212114769U - Motor protection system with delayed power-off function - Google Patents
Motor protection system with delayed power-off function Download PDFInfo
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- CN212114769U CN212114769U CN202020805098.9U CN202020805098U CN212114769U CN 212114769 U CN212114769 U CN 212114769U CN 202020805098 U CN202020805098 U CN 202020805098U CN 212114769 U CN212114769 U CN 212114769U
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- 230000003111 delayed effect Effects 0.000 title claims abstract description 12
- 230000001934 delay Effects 0.000 claims abstract description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
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Abstract
The utility model discloses a motor protection system with delayed power failure, which comprises a line driving module, a control module, a timing module, an electronic switch circuit and a motor driving module; the circuit driving module is used for receiving external signals and respectively outputting the external signals to the control module and the timing module; the control module is connected with the motor driving module and controls the motor driving module to be turned on/off; the timing module is connected with the electronic switch circuit and controls the on/off of the electronic switch circuit; the electronic switch circuit is respectively connected with the power supply module and the motor driving module; when the external signal is a motor starting signal, the timing module directly conducts the electronic switch circuit, and the power supply module supplies power to the motor driving module; when the external signal is a motor closing signal, the timing module delays, and when the delay time reaches a preset time, the electronic switch circuit is turned off, and the power supply module stops supplying power; the design adds a delay power-off protection circuit, and provides the stability and the safety of the whole system.
Description
Technical Field
The utility model relates to a system protection field, concretely relates to motor protection system of outage is postponed in area.
Background
The motor is used as a common power component and widely applied to various control systems, the strict adherence to the starting and stopping time is crucial for motor control, and particularly when the motor needs to be controlled to stop working, the motor must be strictly ensured to stop working within a specific time range, otherwise the service life of the whole control system is influenced, and the damage of the whole motor system is even caused seriously; the existing method only identifies an external signal through a controller and then controls a motor to stop working, and if abnormal conditions occur in the links of receiving and sending signals of the controller, the motor is not controlled, and further the risk of damage is brought.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a motor protection system of outage is postponed in area has increased another delay outage protection circuit on the basis of list control line, has increased entire system's stability, security.
Therefore, the technical scheme of the utility model is as follows:
a motor protection system with delayed power failure comprises a line driving module, a control module, a timing module, an electronic switch circuit and a motor driving module;
the circuit driving module is used for receiving an external signal, converting the external signal into two paths of trigger signals and outputting the two paths of trigger signals to the control module and the timing module respectively; the external signal is a motor starting signal or a motor closing signal;
the control module is connected with the motor driving module and controls the motor driving module to be turned on/off according to the trigger signal;
the timing module is connected with the electronic switch circuit and controls the on/off of the electronic switch circuit according to the trigger signal; the electronic switch circuit is respectively connected with the power supply module and the motor driving module;
when the external signal is a motor starting signal, the timing module directly conducts the electronic switch circuit, and the power supply module supplies power to the motor driving module;
when the external signal is a motor closing signal, the timing module delays, the electronic switch circuit keeps a conducting state, and when the delay time reaches a preset duration, the electronic switch circuit is turned off, and the power supply module stops supplying power to the motor driving module.
Further, the timing module adopts a 555 timer or an RC delay circuit.
In order to realize the miniaturization of the control circuit, preferably, the electronic switch circuit comprises a triode and an MOS (metal oxide semiconductor) tube, wherein the base electrode of the triode is connected with the output end of the timing module, the emitting electrode of the triode is grounded, and the collector electrode of the triode is connected with the grid pin of the MOS tube; and the source electrode of the MOS tube is connected with the 24V power module, and the drain electrode of the MOS tube is connected with the motor driving module.
Further, the electronic switching circuit is an electromagnetic valve.
Preferably, the line driving module is a schmitt trigger.
Further, the control module is a single chip or an FPGA chip.
The method designs two motor signal control circuits, namely a circuit I: from the control module to the motor drive module; a second circuit: from the timing module to the motor drive module; when the motor needs to be started, the first circuit provides a starting signal for the motor, and the second circuit supplies power for the motor to ensure the normal starting of the motor; when the motor needs to be turned off, the control module in the first line controls the motor to be turned off according to the trigger signal, the timing module in the second line starts to delay, at the moment, the motor is still in a power-on state, when the delay time reaches a preset time, the electronic switch circuit is turned off, the driving power supply stops supplying power to the motor driving module, and the motor is powered off; the design adds the delayed power-off protection, and if the control module in the first circuit works normally, the control module can control the motor to stop rotating in the delay period; if the control module in the first circuit works abnormally, control deviation occurs, and the motor cannot be stopped correctly, the second circuit is delayed to cut off the power of the motor, so that the motor is stopped in a power-off state.
In order to ensure the stability of the system, it is preferable that the preset duration of the delay time is set to be greater than the time for the control module to cause the motor to stop rotating and smaller than the difference between the maximum duration of the system required to stop rotating and the power-off stop consumption time of the motor.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a block diagram showing the system configuration in the embodiment;
FIG. 3 is a schematic diagram of the system operation flow in the embodiment.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
A motor protection system with delayed power failure is shown in figure 1 and comprises a line driving module, a control module, a timing module, an electronic switch circuit and a motor driving module;
the circuit driving module is used for receiving an external signal, converting the external signal into two paths of trigger signals and outputting the two paths of trigger signals to the control module and the timing module respectively; the external signal is a motor starting signal or a motor closing signal;
the control module is connected with the motor driving module and controls the motor driving module to be turned on/off according to the trigger signal;
the timing module is connected with the electronic switch circuit and controls the on/off of the electronic switch circuit according to the trigger signal; the electronic switch circuit is respectively connected with the power supply module and the motor driving module;
when the external signal is a motor starting signal, the timing module directly conducts the electronic switch circuit, and the power supply module supplies power to the motor driving module;
when the external signal is a motor closing signal, the timing module delays, the electronic switch circuit keeps a conducting state, and when the delay time reaches a preset time, the electronic switch circuit is turned off, and the power supply module stops supplying power to the motor driving module.
Specifically, the timing module adopts a 555 timer or an RC delay circuit; the control module is a single chip or an FPGA chip.
As shown in fig. 2, in this embodiment, the timing module adopts a 555 timer, the control module is a single chip, and the line driving module is a schmitt trigger.
In order to realize the miniaturization of the control circuit, in the embodiment, the electronic switch circuit comprises a triode and an MOS (metal oxide semiconductor) tube, wherein the base electrode of the triode is connected with the output end of the timing module, the emitting electrode of the triode is grounded, and the collecting electrode of the triode is connected with the grid pin of the MOS tube; the source electrode of the MOS tube is connected with the 24V power module, and the drain electrode of the MOS tube is connected with the motor driving module.
Wherein, the electronic switch circuit can also be selected as a solenoid valve.
When the motor is used, as shown in fig. 3, when the external signal is a motor starting signal, the timing module directly conducts the electronic switch circuit (hardware has no delay), and the power supply module supplies power to the motor driving module;
when the external signal is a motor closing signal, the timing module delays (hardware delay starts timing), the electronic switch circuit keeps a conducting state, and when the delay time reaches a preset time, the electronic switch circuit is turned off, the power supply module stops supplying power to the motor driving module, and in the process, if the control module works normally, the control module can control the motor to stop rotating in the delay time; if the control module works abnormally, control deviation occurs, and the motor cannot be stopped correctly, the delay module cuts off the power of the motor after delaying, so that the motor stops in a power-off state, and the aim of double protection is fulfilled.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. The foregoing description is not intended to be exhaustive or to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to thereby enable others skilled in the art to make and utilize the invention in various exemplary embodiments and with various alternatives and modifications. It is intended that the scope of the invention be defined by the following claims and their equivalents.
Claims (6)
1. The utility model provides a motor protection system of outage is postponed in area which characterized in that: the circuit comprises a line driving module, a control module, a timing module, an electronic switch circuit and a motor driving module;
the circuit driving module is used for receiving an external signal, converting the external signal into two paths of trigger signals and outputting the two paths of trigger signals to the control module and the timing module respectively; the external signal is a motor starting signal or a motor closing signal;
the control module is connected with the motor driving module and controls the motor driving module to be turned on/off according to the trigger signal;
the timing module is connected with the electronic switch circuit and controls the on/off of the electronic switch circuit according to the trigger signal; the electronic switch circuit is respectively connected with the power supply module and the motor driving module;
when the external signal is a motor starting signal, the timing module directly conducts the electronic switch circuit, and the power supply module supplies power to the motor driving module;
when the external signal is a motor closing signal, the timing module delays, the electronic switch circuit keeps a conducting state, and when the delay time reaches a preset duration, the electronic switch circuit is turned off, and the power supply module stops supplying power to the motor driving module.
2. A motor protection system with delayed power outage as claimed in claim 1 wherein: the timing module adopts a 555 timer or an RC delay circuit.
3. A motor protection system with delayed power outage as claimed in claim 1 wherein: the electronic switch circuit comprises a triode and an MOS (metal oxide semiconductor) tube, wherein the base electrode of the triode is connected with the output end of the timing module, the emitting electrode of the triode is grounded, and the collecting electrode of the triode is connected with the grid pin of the MOS tube; and the source electrode of the MOS tube is connected with the 24V power module, and the drain electrode of the MOS tube is connected with the motor driving module.
4. A motor protection system with delayed power outage as claimed in claim 1 wherein: the electronic switching circuit is an electromagnetic valve.
5. A motor protection system with delayed power outage as claimed in claim 1 wherein: the line driving module is a Schmitt trigger.
6. A motor protection system with delayed power outage as claimed in claim 1 wherein: the control module is a single chip or an FPGA chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020805098.9U CN212114769U (en) | 2020-05-14 | 2020-05-14 | Motor protection system with delayed power-off function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020805098.9U CN212114769U (en) | 2020-05-14 | 2020-05-14 | Motor protection system with delayed power-off function |
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| Publication Number | Publication Date |
|---|---|
| CN212114769U true CN212114769U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020805098.9U Active CN212114769U (en) | 2020-05-14 | 2020-05-14 | Motor protection system with delayed power-off function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113377004A (en) * | 2021-06-28 | 2021-09-10 | 广州极飞科技股份有限公司 | Power-off method of aircraft, control method, application method and flight system of aircraft |
-
2020
- 2020-05-14 CN CN202020805098.9U patent/CN212114769U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113377004A (en) * | 2021-06-28 | 2021-09-10 | 广州极飞科技股份有限公司 | Power-off method of aircraft, control method, application method and flight system of aircraft |
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| CP01 | Change in the name or title of a patent holder |
Address after: Room 495, building 3, 1197 Bin'an Road, Binjiang District, Hangzhou City, Zhejiang Province 310051 Patentee after: Yi Si Si (Hangzhou) Technology Co.,Ltd. Address before: Room 495, building 3, 1197 Bin'an Road, Binjiang District, Hangzhou City, Zhejiang Province 310051 Patentee before: ISVISION (HANGZHOU) TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |