CN210669569U - Power-on automatic spark-extinguishing intelligent switch module and unmanned aerial vehicle - Google Patents
Power-on automatic spark-extinguishing intelligent switch module and unmanned aerial vehicle Download PDFInfo
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- CN210669569U CN210669569U CN201921686314.6U CN201921686314U CN210669569U CN 210669569 U CN210669569 U CN 210669569U CN 201921686314 U CN201921686314 U CN 201921686314U CN 210669569 U CN210669569 U CN 210669569U
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Abstract
The utility model discloses a go up electric automatic spark-quenching intelligence switch module relates to the unmanned aerial vehicle battery field of discharging. The intelligent switch module for automatic spark elimination on electrification comprises a voltage-stabilizing power supply unit, a driving unit, a control unit, a switch unit, a spark elimination resistor and an induction signal unit. After the control unit checks that the signal is normal, the control unit starts the pre-charging switch MOS, under the action of the spark-eliminating resistor, the current in the battery pack unit is converted into small enough current to flow to the capacitor of the electric regulation unit, the sensing signal unit checks the corresponding charging condition, and the main switch MOS is started after the feedback electric signal is analyzed by the control unit to be in accordance with the preset value, so that the current in the battery pack unit flows to the capacitor, and the charging process of the capacitor of the electric regulation unit is completed. The intelligent switch module for automatically eliminating sparks generated by contact of the battery pack unit and the electric adjusting unit can eliminate sparks more than two times especially under the complex condition of repeated electrification, and the safe operation of the whole system is protected.
Description
Technical Field
The utility model relates to unmanned aerial vehicle battery field of discharging especially involves last electric automatic spark elimination intelligence switch module.
Background
In unmanned aerial vehicle or plant protection machine field, because group battery unit discharge current is big, power motor unit load power is big, the unit is all designed to have the large capacity electric capacity inside the electricity accent unit (being electronic governor). When the capacitor of the electric adjusting unit is connected into the battery pack unit, the battery pack unit is charged. In view of the fact that the contact current is large due to large voltage drop of the battery plug at the moment of contact, electric sparks are generated at the moment of contact of the battery plug, and finally the battery plug is blackened and cannot be plugged. After the plug is used for a period of time, the service life of the battery plug is influenced, and the unstable factors of the whole electronic system such as a matched battery, a matched electric regulation unit and a matched motor are increased, so that unnecessary loss is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main objective is for eliminating last electric spark, realizes that electricity accent unit charges intelligently with the group battery unit at last electric in-process.
The utility model provides a technical proposal, in particular to an intelligent switch module for automatic spark elimination during power-on, which is used for being connected in series between a battery unit and an electric regulation unit;
the intelligent switch module for automatic spark elimination during electrification comprises a control unit, a driving unit, a switch unit, a spark elimination resistor and an induction signal unit;
the control unit is used for receiving the feedback signal of the induction signal unit and sending a control signal to the driving unit;
the driving unit is used for driving the working state of the switch unit;
the switch unit is arranged between the battery pack unit and the electric adjusting unit, a first charging circuit and a second charging circuit are arranged between the battery pack unit and the electric adjusting unit, and the switch unit is used for controlling the conduction and the closing of the first charging circuit and the second charging circuit;
the spark-eliminating resistor is connected in series with the first charging circuit, and the second charging circuit is a conducting wire;
and the induction signal unit is used for acquiring the electric signal on the spark-quenching resistor to form a feedback signal.
Furthermore, the intelligent switch module further comprises a voltage-stabilizing power supply unit for supplying power to the control unit, the driving unit and the induction signal unit.
Further, the switch unit comprises a main switch module and a pre-charging switch module;
the main switch module is connected in series in the second charging circuit and is connected with the driving unit;
the pre-charging switch module is connected in series in the first charging line and is connected with the driving unit.
Further, the driving unit includes a main switching MOS driving unit and a precharge switching MOS driving unit.
The main switch module comprises a main switch MOS, the main switch MOS is electrically connected with a main switch MOS driving unit through an MOS-DSG end, and the main switch MOS driving unit sends a driving signal to the main switch MOS.
The pre-charging switch module comprises a pre-charging switch MOS, the pre-charging switch MOS is electrically connected with the pre-charging switch MOS driving unit through an MOS-CHG end, and the pre-charging switch driving unit sends a driving signal to the pre-charging switch MOS.
Furthermore, the main switch module and the pre-charging switch module are both N-type MOSFETs and adopt a negative terminal control mode.
Further, the sensing signal unit comprises a current detection unit and a voltage detection unit, the current detection unit comprises an operational amplifier, and the voltage detection unit comprises a divider resistor.
Further, the voltage-stabilizing power supply unit adopts a DC-DC chip.
Further, an unmanned aerial vehicle, including group battery unit, electricity accent unit and power motor unit, still include the automatic spark-over intelligence switch module of going up of above-mentioned arbitrary, the group battery unit is connected for the electric capacity electricity of transferring the unit through intelligence switch.
Compared with the prior art, the beneficial effects of the utility model are that: the intelligent switch module for automatic spark elimination on electrification comprises a voltage-stabilizing power supply unit, a driving unit, a control unit, a switch unit, a spark elimination resistor and an induction signal unit. After the control unit checks that the signal is normal, the control unit starts the pre-charging switch MOS, under the action of the spark-eliminating resistor, the current in the battery pack unit is converted into small enough current to flow to the capacitor of the electric regulation unit, the sensing signal unit checks the corresponding charging condition, and the main switch MOS is started after the feedback electric signal is analyzed by the control unit to be in accordance with the preset value, so that the current in the battery pack unit flows to the capacitor, and the charging process of the capacitor of the electric regulation unit is completed. The intelligent switch module for automatically eliminating sparks generated by contact of the battery pack unit and the electric adjusting unit can eliminate sparks more than two times especially under the complex condition of repeated electrification, and the safe operation of the whole system is protected.
Drawings
Fig. 1 is a block diagram of the operational connection of a battery pack unit, an intelligent module, a master control/electric regulation/motor unit;
FIG. 2 is a circuit block diagram of an intelligent switch module for automatic spark elimination during power-on;
FIG. 3 is a schematic diagram of a main circuit for charging the capacitor of the intelligent switch module;
FIG. 4 is a schematic circuit diagram of a driving unit of the intelligent switch module;
FIG. 5 is a schematic circuit diagram of an inductive signal unit of the intelligent switch module;
FIG. 6 is a schematic circuit diagram of a control unit of the intelligent switch module;
fig. 7 is a schematic circuit diagram of a voltage stabilizing unit of the intelligent switch module.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As used herein, the singular forms "a", "an", "the" and "the" include plural referents unless the content clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1 to 3, an intelligent switch module for automatic spark elimination during power-on is used to be connected in series between a battery unit 7 and an electric regulation unit 8;
the intelligent switch module for automatic spark elimination during electrification comprises a control unit 2, a driving unit 3, a switch unit 4, a spark elimination resistor 5 and an induction signal unit 6;
the control unit 2 is used for receiving the feedback signal of the sensing signal unit 6 and sending a control signal to the driving unit 3;
the driving unit 3 is used for driving the working state of the switch unit 4;
the switch unit 4 is arranged between the battery pack unit 7 and the electric adjusting unit 8, a first charging circuit and a second charging circuit are arranged between the battery pack unit 7 and the electric adjusting unit 8, and the switch unit 4 is used for controlling the conduction and the closing of the first charging circuit and the second charging circuit;
the spark-eliminating resistor 5 is connected in series with the first charging circuit, and the second charging circuit is a conducting wire;
and the induction signal unit 6 is used for acquiring the electric signal on the spark-quenching resistor 5 to form a feedback signal.
In this embodiment, by connecting the spark-quenching resistor 5 to the circuit, the current of the battery unit 7 charging the power conditioning unit 8 through the first charging circuit is converted into a current small enough that no spark is generated during the power-on process. A closing control is formed by the control unit 2, the drive unit 3, the switching unit 4 and the spark-quenching resistor 5 and the induction signal unit 6. When the charging condition of the capacitor of the electric regulation unit 8 reaches a preset value, the sensing signal unit 6 can collect a power-on signal of the spark-quenching resistor 5 and form a feedback signal to the control unit 2, the control unit 2 controls the driving unit 3 according to the feedback signal, the driving unit 3 sends a driving signal to drive the working state of the switch unit 4, so that the battery pack unit 7 charges the capacitor of the electric regulation unit 8 through the second charging circuit, and the charging speed is accelerated. And this process need not manual operation, has realized the intelligent control of switch module to be favorable to guaranteeing the reliability of battery plug, the life of extension battery plug, be favorable to supporting group battery unit 7, supporting electricity to transfer unit 8 and supporting power motor unit 10 etc. whole system's stable work.
In an embodiment, the above-mentioned intelligent switch module for automatic spark quenching during power-on further includes a voltage-stabilizing power supply unit 1, which is used for supplying power to the control unit 2, the driving unit 3 and the sensing signal unit 6. Specifically, the regulated power supply unit 1 is shown in fig. 7.
In this embodiment, the voltage-stabilizing power supply unit 1 will provide 3.3V and 10V voltages for the control unit 2, the driving unit 3 and the sensing signal unit 6, which ensures the normal operation of the intelligent switch module.
In one embodiment, the switch unit 4 includes a main switch module 41 and a pre-charge switch module 42;
the main switch module 41 is connected in series in the second charging line and connected with the driving unit 3;
the precharge switch module 42 is connected in series to the first charging line and is connected to the driving unit 3.
As shown in fig. 4, in an embodiment, the driving unit 3 includes a main switching MOS driving unit and a precharge switching MOS driving unit.
The main switch module 41 includes a main switch MOS Q1, the main switch MOS Q1 is electrically connected to the main switch MOS driving unit through a MOS-DSG terminal, and the main switch MOS driving unit sends a driving signal to the main switch MOS Q1.
The pre-charge switch module 42 includes a pre-charge switch MOS Q2, the pre-charge switch MOS Q2 is electrically connected to the pre-charge switch MOS driving unit through MOS-CHG terminal, and the pre-charge switch MOS driving unit sends a driving signal to the pre-charge switch MOS Q2.
The working process of the main switch MOS driving unit is as follows: when the NPN transistor Q7 is turned on when receiving the high level sent from the control unit 2, thereby turning on the PNP transistor Q8, a low level is output to the main switch MOS Q1, and since the main switch MOS Q1 is an N-MOS transistor, the main switch MOS Q1 is in an off state.
When the NPN transistor Q7 is turned off when receiving the low level sent from the control unit 2, thereby turning on the NPN transistor Q4, a high level is output to the main switch MOS Q1, so that the main switch MOS Q1 is in a conducting state.
The NPN transistor Q4 and the PNP transistor Q8 form an NPN + PNP push-pull output to drive the main switch MOS Q1.
The working process of the pre-charge switch MOS driving unit is the same as that of the main switch MOS driving unit, and the detailed description is omitted here.
In one embodiment, the main switch module 41 and the pre-charge switch module 42 are both N-type MOSFETs and employ negative side control.
As shown in fig. 5, in an embodiment, the sensing signal unit 6 includes a current detection unit and a voltage detection unit, the current detection unit includes an operational amplifier, and the voltage detection unit includes a voltage dividing resistor.
The working process of the induction signal unit 6 is as follows: the operational amplifier U4 and the operational amplifier U5 constitute a main loop two-way current detecting unit. The voltage dividing resistors R32, R37, R41, R33, R42 and R38 form a main loop two-way voltage detection unit.
The current signal passing through the spark-quenching resistor 5 is amplified by an operational amplifier and then outputs a proper analog voltage to the control unit 2 for AD sampling analysis;
the battery voltage is divided by the voltage dividing resistors R32, R37, R41, R33, R42 and R38 and then input to the control unit 2, and then the battery voltage is calculated and analyzed by combining the currents of the spark elimination resistors R4 and R6, and finally a feedback signal is output to the control unit 2.
In one embodiment, the regulated power supply unit 1 employs a DC-DC chip.
As shown in fig. 1, in an embodiment, an unmanned aerial vehicle includes a battery pack unit 7, an electric regulation unit 8, and a power motor unit 10, and further includes an intelligent switch module according to any one of claims 1 to 9, where the battery pack unit 7 is electrically connected to a capacitor of the electric regulation unit 8 through an intelligent switch.
In this embodiment, the battery unit 7 is connected to the front end of the intelligent switch module, in particular, the output end of the battery unit 7 is electrically connected with the switch unit 4. The electric regulation unit 8 is connected to the rear end of the intelligent module, specifically, a capacitor and spark-quenching resistors R4 and R6 of the electric regulation unit 8, and a pre-charging switch MOS Q2 or directly connected with a main switch MOS Q1. When the switching unit 4 is turned on, the current of the battery unit 7 is directly output or output to the capacitance of the electric adjusting unit 8 via the spark extinguishing resistors R4 and R6. The whole connection mode is equivalent to that the intelligent switch module for automatic spark elimination during power-on is connected in series between the battery pack unit 7 and the electric regulation unit 8. Then the electric regulation unit 8 receives the instruction of the main control unit 9, and outputs and controls the power motor unit 10 to form a complete control output system.
Referring to fig. 2-6, the intelligent switch module for automatic spark elimination during power-on comprises a voltage-stabilizing power supply unit 1, a driving unit 3, a control unit 2, a switch unit 4, a spark elimination resistor 5 and an induction signal unit 6. The voltage-stabilizing power supply unit 1 is electrically connected with the driving unit, the control unit 2 and the sensing signal unit 6 respectively to provide stable voltage for the driving unit, the control unit and the sensing signal unit. The control unit is electrically connected with the main switch MOS drive unit and the pre-charging switch MOS drive unit, specifically, the main switch MOS drive unit is electrically connected with the MOS-SW terminal and the MOS-CH terminal, and the main switch MOS drive unit is electrically connected with the main switch MOS Q1, specifically, the MOS-DSG terminal. The precharge switch MOS driving unit is electrically connected to the precharge switch MOS Q2, specifically, through the MOS-CHG terminal. The control unit 2 controls the switching on or off of the switching unit 4 by sending a control signal to the driving unit 3, and sending a driving signal by the driving unit 3. The pre-charging switch MOS Q2 is electrically connected to the spark-quenching resistors R4 and R6, one end of each of the spark-quenching resistors R4 and R6 is electrically connected to the capacitor of the power conditioning unit 8, and when the pre-charging switch MOSQ2 is turned on, the current of the battery unit 7 flows to the capacitor of the power conditioning unit 8 through the spark-quenching resistors R4 and R6. The other ends of the spark-quenching resistors R4 and R6 are also electrically connected with the sensing signal unit 6, the sensing signal unit 6 is electrically connected with the control unit 2 in a specific mode that the sensing signal unit 6 is electrically connected with the control unit 2 through an I-ADC end, an I-ADC1 end, a V-TEST end and a V-TEST1 end, and the sensing signal unit 6 feeds back voltage signals and current signals on the spark-quenching resistors R4 and R6 to the control unit to form closed-loop control. The main switch MOS Q1 is directly electrically connected to the capacitor of the power adjusting unit 8, and when the main switch MOS Q1 is turned on, the current of the battery unit 7 directly flows to the capacitor of the power adjusting unit 8.
The working principle is as follows: when the capacitor of the electric regulation unit 8 is connected to the battery pack unit 7 for charging, the capacitor is electrically connected with the pre-charging switch MOS Q2 and the spark-quenching resistors R4 and R6 of the intelligent switch module, and the capacitor is also directly and electrically connected with the main switch MOS Q1. The output end of the battery unit 7 is electrically connected with the pre-charging switch MOS Q2 and the spark-extinguishing resistors R4 and R6, and the output end of the battery unit 7 is also directly electrically connected with the main switch MOS Q1. When the control unit checks that the signal is normal, the control unit sends a control signal to the pre-charge switch MOS driving unit, and the pre-charge switch MOS driving unit sends a driving signal to the pre-charge switch MOS Q2, so that the pre-charge switch MOS Q2 is turned on, and then the large current of the battery unit 7 is converted into a small current through the pre-charge switch MOS Q2 and the action of the spark elimination resistors R4 and R6, and flows to the capacitor of the power adjusting unit 8. When the charging condition of the capacitor reaches a preset value, the sensing signal unit 6 feeds back a corresponding electric signal to the control unit 2 by acquiring voltage signals and current signals of the spark-quenching resistors R4 and R6, and the control unit analyzes that the voltage in the capacitor reaches the preset value without generating electric sparks, and then the control unit 2 sends a control signal to the main switch MOS driving unit to drive the main switch MOS Q1 to be conducted, so that a large current output by the battery pack unit 7 is input into the capacitor of the electronic tuning unit 8 through the main switch MOSQ1 until the charging of the capacitor is completed. When the capacitor needs to be recharged after being discharged, the process is repeated, so that the switch module can be suitable for repeated power-on operation, and no spark exists in the whole power-on process.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (8)
1. An intelligent switch module capable of automatically eliminating sparks during power-on is characterized in that the intelligent switch module is used for being connected between a battery pack unit and an electric regulation unit in series;
the intelligent switch capable of automatically removing sparks during power-on comprises a control unit, a driving unit, a switching unit, a spark removing resistor and an induction signal unit;
the control unit is used for receiving a feedback signal of the induction signal unit and sending a control signal to the driving unit;
the driving unit is used for driving the working state of the switch unit;
the switch unit is arranged between the battery pack unit and the electric adjusting unit, a first charging circuit and a second charging circuit are arranged between the battery pack unit and the electric adjusting unit, and the switch unit is used for controlling the connection and disconnection of the first charging circuit and the second charging circuit;
the spark-quenching resistor is connected in series with the first charging circuit, and the second charging circuit is a conducting wire;
and the induction signal unit is used for acquiring the electric signal on the spark-quenching resistor to form the feedback signal.
2. The intelligent switch module for automatic spark quenching according to claim 1, further comprising a voltage-stabilizing power supply unit for supplying power to the control unit, the driving unit and the sensing signal unit.
3. The intelligent switch module of any one of claims 1 or 2, wherein the switch unit comprises a main switch module and a pre-charge switch module;
the main switch module is connected in series in the second charging circuit and is connected with the driving unit;
the pre-charging switch module is connected in series in the first charging line and is connected with the driving unit.
4. The power-on automatic spark-quenching intelligent switch module according to claim 3, wherein the driving unit comprises a main switching MOS driving unit and a pre-charging switching MOS driving unit;
the main switch module comprises a main switch MOS, the main switch MOS is electrically connected with the main switch MOS driving unit through an MOS-DSG end, and the main switch MOS driving unit sends a driving signal to the main switch MOS;
the pre-charging switch module comprises a pre-charging switch MOS, the pre-charging switch MOS is electrically connected with the pre-charging switch MOS driving unit through an MOS-CHG end, and the pre-charging switch MOS driving unit sends a driving signal to the pre-charging switch MOS.
5. The intelligent switch module with automatic spark elimination according to claim 3, wherein the main switch module and the pre-charging switch module are both N-type MOSFETs and adopt a negative terminal control mode.
6. The intelligent switch module for automatic spark quenching according to claim 1, wherein the sensing signal unit comprises a current detection unit and a voltage detection unit, the current detection unit comprises an operational amplifier, and the voltage detection unit comprises a voltage dividing resistor.
7. The intelligent switch module with automatic spark-quenching function according to claim 2, wherein the voltage-stabilizing power supply unit is a DC-DC chip.
8. An unmanned aerial vehicle, including group battery unit, electricity accent unit and power motor unit, its characterized in that still includes the intelligent switch module of the automatic spark-arrest of going up of any one of claims 1-7, group battery unit is through intelligent switch for the electric capacity electricity connection of electricity accent unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921686314.6U CN210669569U (en) | 2019-09-30 | 2019-09-30 | Power-on automatic spark-extinguishing intelligent switch module and unmanned aerial vehicle |
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| CN201921686314.6U CN210669569U (en) | 2019-09-30 | 2019-09-30 | Power-on automatic spark-extinguishing intelligent switch module and unmanned aerial vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421710A (en) * | 2020-10-28 | 2021-02-26 | 深圳市泰祺科技有限公司 | Intelligent charging protection system and method for battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421710A (en) * | 2020-10-28 | 2021-02-26 | 深圳市泰祺科技有限公司 | Intelligent charging protection system and method for battery pack |
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Address after: 518000 zone B, floor 2, floor 3-4, plant 4, Yasen industrial plant, No. 8, Chengxin Road, Baolong Industrial City, Baolong community, Baolong street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Haoying Technology Co.,Ltd. Address before: 518000 zone B, floor 2, floor 3-4, plant 4, Yasen industrial plant, No. 8, Chengxin Road, Baolong Industrial City, Baolong community, Baolong street, Longgang District, Shenzhen City, Guangdong Province Patentee before: HOBBYWING TECHNOLOGY CO.,LTD. |
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