CN214314658U - Power supply system of underwater vehicle and underwater vehicle - Google Patents
Power supply system of underwater vehicle and underwater vehicle Download PDFInfo
- Publication number
- CN214314658U CN214314658U CN202120378347.5U CN202120378347U CN214314658U CN 214314658 U CN214314658 U CN 214314658U CN 202120378347 U CN202120378347 U CN 202120378347U CN 214314658 U CN214314658 U CN 214314658U
- Authority
- CN
- China
- Prior art keywords
- power supply
- power
- module
- energy storage
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the utility model discloses power supply system and underwater vehicle of underwater vehicle, power supply system includes: the charging module and the energy storage module; the underwater vehicle comprises a vehicle body; the energy storage module comprises a charging and discharging terminal, and the aircraft body comprises a power supply signal receiving end; the power supply signal receiving end is electrically connected with an external power supply, the power supply signal output end is respectively electrically connected with the charging and discharging terminal and the power supply signal receiving end, and the charging and discharging terminal is electrically connected with the power supply signal receiving end; the charging module is used for supplying power to the energy storage module and/or the aircraft body, and the energy storage module is used for storing a power supply signal output by the power supply module or supplying power to the aircraft body. The technical problems that the cost is high and the preparation difficulty is high due to the fact that a shore-based power supply module and an underwater power supply module are adopted in the prior art and large power needs to be provided to supply power to an underwater vehicle by an ROV are solved.
Description
Technical Field
The embodiment of the utility model provides a relate to the relevant technical field of motor, especially relate to a power supply system and underwater vehicle of underwater vehicle.
Background
Currently, a Remote Operated Vehicle (RVO) usually adopts a shore-based power supply mode, a shore-based power supply is directly supplied to an underwater power supply module by a high voltage Alternating Current (AC) or Direct Current (DC) power supply, and the underwater power supply module rectifies and reduces voltage and then supplies power to an underwater ROV system. Because the fluctuation of the power supply current is large due to the change of the running speed and the moving posture of the underwater ROV system during working, in the prior art, the ROV underwater power supply module needs to output high power to meet the power consumption requirement of the ROV, so that the cost of the underwater ROV power supply module is high, and the preparation difficulty is large.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a power supply system and underwater vehicle of underwater vehicle to adopt bank base power supply and underwater power supply module to need to provide great power among the solution prior art and just can satisfy the ROV for the technical problem with high costs, the preparation degree of difficulty is great that the underwater vehicle power supply leads to.
In a first aspect, an embodiment of the present invention provides a power supply system of an underwater vehicle, including: the charging module and the energy storage module; the underwater vehicle comprises a vehicle body;
the energy storage module comprises a charging and discharging terminal, and the aircraft body comprises a power supply signal receiving end;
the power supply signal receiving end is electrically connected with an external power supply, the power supply signal output end is respectively electrically connected with the charging and discharging terminal and the power supply signal receiving end, and the charging and discharging terminal is electrically connected with the power supply signal receiving end; the charging module is used for supplying power to the energy storage module and/or the aircraft body, and the energy storage module is used for storing a power supply signal output by the charging module or supplying power to the aircraft body.
Optionally, when the required power of the aircraft body is smaller than the output power of the charging module, the charging module is configured to supply power to the energy storage module and the aircraft body;
the working voltage of the charging module is greater than that of the energy storage module.
Optionally, when the required power of the aircraft body is greater than the output power of the charging module, the charging module and the energy storage module are both used for supplying power to the aircraft body;
the working voltage of the charging module is equal to the working voltage of the energy storage module.
Optionally, the output power of the charging module is constant.
Optionally, the power supply system further includes an external power supply, the external power supply includes a power signal output end, and the power signal output end is electrically connected to the power signal receiving end.
Optionally, the charging module further includes a rectification voltage-limiting unit, and the rectification voltage-limiting unit is configured to adjust a power signal provided by the external power supply.
Optionally, the external power supply includes a dc power supply or an ac power supply.
Optionally, the energy storage module includes a plurality of lithium batteries connected in series.
In a second aspect, an embodiment of the present invention provides an underwater vehicle, including the power supply system provided in the first aspect; the aircraft further comprises an aircraft body;
the aircraft body is electrically connected with the charging module and the energy storage module respectively.
Optionally, the underwater vehicle further comprises a control module and at least one motor, wherein the control module is electrically connected with the motor and is used for controlling the motor to drive the vehicle body to perform underwater operation.
The embodiment of the utility model provides a power supply system of underwater vehicle, include: the underwater vehicle comprises a vehicle body, when the vehicle body is in a low-current working state, the charging module supplies power to the vehicle body on one hand, and supplies power to the energy storage module on the other hand, so that the energy storage module is charged and stores energy; when the vehicle body is in a high-current working state, the charging module and the energy storage module supply power to the vehicle body together, so that the high-current working requirement of the vehicle body is met. The energy storage module is arranged in the power supply system of the underwater vehicle, so that the energy storage module has the functions of storing electric energy and supplying power to the vehicle body, when the vehicle body has larger fluctuation of power supply current due to larger changes of the speed and the moving posture, the charging module and the energy storage module discharge together to meet the power consumption requirement of the vehicle body, the working power of the charging module can be effectively reduced, the equipment cost is reduced, the technical problems that the cost is high and the preparation difficulty is larger due to the fact that a shore-based power supply module and an underwater power supply module are adopted to provide larger power to supply power to the underwater vehicle by an ROV in the prior art are solved, and more applications of the underwater vehicle are met.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic block diagram of a power supply system of an underwater vehicle according to an embodiment of the present invention;
fig. 2 is a graph showing a conversion relationship between the output voltage and the output current of the charging module according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail through the following embodiments with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some embodiments of the present invention, not all embodiments, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention all fall into the protection scope of the present invention.
Examples
The embodiment of the utility model provides a power supply system of ware submerges under water. Fig. 1 is a schematic block diagram of a power supply system of an underwater vehicle according to an embodiment of the present invention. As shown in fig. 1, the power supply system 10 of the underwater vehicle includes: a charging module 11 and an energy storage module 12; the underwater vehicle 20 comprises a vehicle body 21;
the charging module 11 comprises a power signal receiving end and a power supply signal output end, the energy storage module 12 comprises a charging and discharging terminal, and the aircraft body 21 comprises a power supply signal receiving end;
the power signal receiving end is electrically connected with the external power supply 30, the power supply signal output end is respectively electrically connected with the charging and discharging terminal and the power supply signal receiving end, and the charging and discharging terminal is electrically connected with the power supply signal receiving end; the charging module 11 is used for supplying power to the energy storage module 12 and/or the aircraft body 21, and the energy storage module 12 is used for storing a power supply signal I output by the charging module 111Or to power the aircraft body 21.
Illustratively, the power supply system of the underwater vehicle provided by the embodiment of the present invention includes a charging module 11 and an energy storage module 12, and the underwater vehicle 20 includes a vehicle body 21. The energy storage module 12 may be a commercially available lithium battery or other energy storage devices that satisfy charging and discharging requirements. Specifically, the charging module 11 receives a power signal provided by the external power supply 30 through a power signal receiving terminal, where the power signal includes an output power P1Output voltage U1And an output current I1And the charging module 11 has an intelligent power supply function. Specifically, according to the amount of power used by the aircraft body 21, the charging module 11 can supply power to the aircraft body 21 and the energy storage module 12 at the same time. When the working current I of the aircraft body 21 is2When the output power is low, part of the output power provided by the charging module 11 is used for supplying power to the aircraft body 21, so that the working current I of underwater operation of the aircraft body 21 is met2Some of which are used to supply power to the energy storage module 12 so that the energy storage module 12 stores electrical energy. When the vehicle body 21 works underwater, the working current I is caused by great change of the navigation speed and the change of the dynamic attitude2When the fluctuation is large, the output current I of the charging module 111It is difficult to satisfy the operating current I of the aircraft body 212The energy storage module 12 starts the discharging mode, the energy storage module 12 and the charging module 11 supply power to the aircraft body 21 together to meet the high operating current I of the aircraft body 212The operation requirements of (1); or, when the required power of the aircraft body 21 is equal to the output power output by the charging module 11, the charging module 11 can be electrically connected with the power supply signal receiving end through the power supply signal output end to independently supply power to the aircraft body 21, so that the requirement of the aircraft body 21 on low working current I during underwater operation is met2The requirements of (1); or, when the aircraft body 21 stops working, the charging module 11 may also be electrically connected with the charging and discharging terminal 21 through the power supply signal output end 12 to supply power to the energy storage module 12 independently, and the energy storage module 12 may be charged in advance to store energy. By adding the energy storage module 12, electric energy can be stored in advance, and redundant electric power output by the charging module 11 can be stored when the underwater vehicle 20 operates underwater for preparing the working current I of the vehicle body 212When the size is larger, the energy storage module 12 and the charging module 11 supply power together, so that the output power of the charging module 11 can be effectively reduced, the equipment cost is effectively reduced, and the electric energy is saved.
To sum up, the embodiment of the utility model provides a power supply system of underwater vehicle, include: the underwater vehicle comprises a vehicle body, when the vehicle body is in a low-current working state, the charging module supplies power to the vehicle body on one hand, and supplies power to the energy storage module on the other hand, so that the energy storage module is charged and stores energy; when the vehicle body is in a high-current working state, the charging module and the energy storage module supply power to the vehicle body together, so that the high-current working requirement of the vehicle body is met. The energy storage module is arranged in the power supply system of the underwater vehicle, so that the energy storage module has the functions of storing electric energy and supplying power to the vehicle body, when the vehicle body has larger fluctuation of power supply current due to larger changes of the speed and the moving posture, the charging module and the energy storage module discharge together to meet the power consumption requirement of the vehicle body, the working power of the charging module can be effectively reduced, the equipment cost is reduced, the technical problems that the cost is high and the preparation difficulty is larger due to the fact that a shore-based power supply module and an underwater power supply module are adopted to provide larger power to supply power to the underwater vehicle by an ROV in the prior art are solved, and more applications of the underwater vehicle are met.
Fig. 2 is a graph showing a conversion relationship between the output voltage and the output current of the charging module according to an embodiment of the present invention. As shown in fig. 1 and 2, on the basis of the above-described embodiments, optionally, when the power demand P of the aircraft body 21 is greater than or equal to the power demand P of the aircraft body2Less than the output power P of the charging module 111When the vehicle is running, the charging module 11 is used for supplying power to the energy storage module 12 and the vehicle body 21; operating voltage U of charging module 111Greater than the operating voltage U of the energy storage module 123。
Illustratively, as shown in fig. 1 and fig. 2, optionally, the power supply system 20 further includes an external power supply 30, where the external power supply 30 includes a power signal output terminal, and the power signal output terminal is electrically connected to the power signal receiving terminal. The charging module 11 receives a power signal provided by the external power supply 30 through a power signal receiving terminal. Optionally, the external power source 30 includes a dc power source or an ac power source. Illustratively, the dc power supply may provide a dc power signal and the ac power supply may provide an ac power signal, such as an ac signal of 100V and 240V.
Optionally, the charging module 11 further includes a rectification voltage-limiting unit, and the rectification voltage-limiting unit is configured to adjust a power signal provided by the external power supply 30. Illustratively, the rectifying voltage-limiting unit comprises an alternating current-to-direct current conversion circuit composed of a plurality of capacitors, inductors, resistors and the like, and has the functions of limiting current, limiting voltage and outputting stable power.
For example, the rectifying voltage-limiting unit of the charging module 11 rectifies and limits the voltage of the received 100-240V alternating current signal, and then outputs a power P1The dc power supply signal of (1). Wherein the output power P1Satisfies the following conditions: p1＝U1*I1， U1For the output voltage of the charging module 11, I1For the output current I of the charging module 111. The required power P2 of the aircraft body 21 satisfies: p2＝U2*I2，U2Is the operating voltage of the aircraft body 21, I2Is the operating current I of the aircraft body 212。
Optionally, the energy storage module 12 comprises a plurality of lithium batteries connected in series. Lithium batteryThe battery has the characteristics of no maintenance, large energy density (about 5 times of that of a lead-acid storage battery), long service life, small volume, high safety and the like, and has the functions of charging, storing energy, discharging and supplying power. Charging/discharging power P of the energy storage module 123Satisfies the following conditions: p3＝U3*I3，U3Operating voltage for charging/discharging the energy storage module 12, I3Operating current I for charging/discharging the energy storage module 123. Illustratively, 6 lithium batteries can be selected to be connected in series to satisfy the charging/discharging power P3Up to 300Wh, charge/discharge operating voltage U3Up to 25.2V.
Specifically, referring to fig. 2, the voltage-current conversion relationship of the charging module 11 shows that, when the load of the vehicle body 21 in underwater operation is small, the required power P in the current operation state is small2Less than the output power P of the charging module 111The operating current of the aircraft body 21 is I2Operating voltage is U2At this time, U is satisfied3＜U1，I3＜I1Output current I output by the charging module 111Meets the working current I of the aircraft body 213The energy storage module 12 turns on the charging mode. Referring to fig. 2, the voltage-current conversion relationship of the charging module 11 shows that when the charging module 11 is in a constant voltage operation state (as shown by the curve E-F in fig. 2), the total current I of the charging module 111A part is used for providing the working current I required by the aircraft body 21 under the current working state2A part of the charging working current I for providing charging energy storage for the energy storage module 123. At this time, the operating voltage U of the charging module 111Greater than the operating voltage U of the energy storage module 123The charging module 11 supplies power and stores energy to the energy storage module 12, and the charging power P of the energy storage module 2 is realized3Satisfies the following conditions: p3＝U3*I3，U3For charging the energy storage module 123Charging current I for energy storage module 123Wherein, I1＝I2+I3，U3＜U1. For example, when the output current I of the charging module 11110A, operating current I of the aircraft body 212Is 9A, thenOperating current I for charging energy storage module 123Is 1A. It should be noted that the energy storage module 12 has a full load protection auto-power-off setting, when the energy storage module 12 stores energy and is fully loaded, the energy storage module 12 stops charging, as shown in the section B-C of the output current curve in fig. 2, and the output current I of the charging module 11 is following the full load of the energy storage module 121Gradually decreases and finally reaches stable output, and only the working current I of the aircraft body 21 is required to be met2As required.
On the basis of the above embodiment, optionally, when the power demand P of the aircraft body 21 is high2Is greater than the output power P of the charging module 111In time, the charging module 11 and the energy storage module 12 are both used for supplying power to the aircraft body 21; operating voltage U of charging module 111Equal to the operating voltage U of the energy storage module 123。
Illustratively, with continued reference to fig. 1 and 2, when the vehicle body 21 is operated underwater, the load is suddenly increased due to sudden start and stop, sudden positive and negative rotation and the like, and the required power P of the vehicle body 21 is increased2Is greater than the output power P of the charging module 111 Corresponding aircraft body 21 operating current I3An abrupt increase occurs. At this time, the output voltage U of the charging module 11 is based on the working principle of the charging module1Is pulled down (as shown by the output voltage curve E-D in FIG. 2) to the operating voltage U of the energy storage module 12 in a very short time3And at this time, the energy storage module 12 automatically enters a discharging mode, the charging module 11 enters a constant current working mode (as shown by an output current curve a-B in fig. 2), the energy storage module 12 and the charging module 11 jointly supply power to the aircraft body 21, and the energy storage module 12 bears output power exceeding the charging module 11.
In particular, the output current I of the charging module 111Less than the operating current I of the aircraft body 212Total current I output by the energy storage module 121Cannot meet the working current I of the aircraft body 212. Referring to fig. 2, the output current I of the charging module 11 is based on the working principle of the charging module 11Increasing to the highest output current of the charging module 11 in a short time (as shown by the output voltage curve B-a in fig. 2) due to the output power P1Satisfies the following conditions: p1＝U1*I1. Optionally, the output power P of the charging module 111Is constant. At this time, the output voltage U1Pulled low, total voltage U of charging module 111Gradually decreases to the operating voltage U discharging with the energy storage module 123When the energy storage module 12 is equal, the discharge mode is started to satisfy the discharge power P3：P3＝U3*I3At this time, U3Is the discharge voltage of the energy storage module 12, I3For the discharge current I of the energy storage module 123And, I2＝I1+I3Meets the working current I of the aircraft body 212To the need of (a). For example, the operating current I of the aircraft body 21215A, the output current I of the charging module 111Operating current I for charging energy storage module 12 for 10A3Is 5A. The output current I is1The current is increased to the highest output current in a short time, and the time is short and can be ignored.
When the output power P of the charging module 111Just meet the required power P of the aircraft body 212Total current I output by the charging module 111To meet the current demand, i.e. I, of the aircraft body 211＝I2The energy storage module 12 is in an off state and neither charges nor discharges.
The embodiment of the utility model also provides an underwater vehicle, including the power supply system that the above-mentioned embodiment provided, still include the navigation ware body; the aircraft body is respectively and electrically connected with the charging module and the energy storage module.
As an example, with continued reference to fig. 1, the embodiment of the present invention provides an underwater vehicle ROV with various functions, and different types of ROVs can be used to perform different tasks, and are widely applied to various fields such as military, coast guard, maritime affairs, customs, nuclear power, hydroelectric power, marine oil, fishery, marine rescue, pipeline detection, and marine scientific research. Wherein, the embodiment of the utility model provides an underwater vehicle ROV includes the power supply system 10 that above-mentioned embodiment provided, still includes navigation ware body 21, and navigation ware body 21 is connected with charging module 11 and energy storage module 12 electricity respectively, and charging module 11 and energy storage module 12 are used for providing stable power to navigation ware body 21. For a specific working principle, please refer to the description of the above embodiments, which is not repeated herein.
To sum up, the embodiment of the utility model provides a power supply system of underwater vehicle has realized the current intelligent allocation of the ROV module of charging and lithium cell group hybrid power supply under water, adopts the mode of energy storage in advance, and the output that can reduce the module of charging reduces the power supply cost of the module of charging and external power supply, effectively practices thrift the electric energy.
Optionally, the underwater vehicle further comprises a control module and at least one motor, and the control module is electrically connected with the motor and is used for controlling the motor to drive the vehicle body to perform underwater operation.
Illustratively, the underwater vehicle further comprises a control module and at least one motor, the control module CAN receive a control command issued by a human-computer interface through communication modes such as RS232/485 or CAN, the control module is electrically connected with the motor, the control module controls operation parameters of the motor according to the control command, the operation parameters include start and stop, motor rotation speed, rotation angle and the like, and the motor drives the vehicle body to perform underwater operation, for example, underwater sample collection, walking and the like are completed. The underwater vehicle also comprises a human-computer interface, and an operator can issue a control command through the human-computer interface.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, but that the features of the various embodiments of the invention may be partially or fully coupled to each other or combined and may cooperate with each other and be technically driven in various ways. Numerous obvious variations, rearrangements, combinations, and substitutions will now occur to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A power supply system for an underwater vehicle, comprising: the charging module and the energy storage module; the underwater vehicle comprises a vehicle body;
the energy storage module comprises a charging and discharging terminal, and the aircraft body comprises a power supply signal receiving end;
the power supply signal receiving end is electrically connected with an external power supply, the power supply signal output end is respectively electrically connected with the charging and discharging terminal and the power supply signal receiving end, and the charging and discharging terminal is electrically connected with the power supply signal receiving end; the charging module is used for supplying power to the energy storage module and/or the aircraft body, and the energy storage module is used for storing a power supply signal output by the charging module or supplying power to the aircraft body.
2. The power supply system according to claim 1, wherein the charging module is configured to supply power to the energy storage module and the aircraft body when a power demand of the aircraft body is less than an output power of the charging module;
the working voltage of the charging module is greater than that of the energy storage module.
3. The power supply system according to claim 1, wherein when the power demand of the aircraft body is greater than the output power of the charging module, the charging module and the energy storage module are both configured to supply power to the aircraft body;
the working voltage of the charging module is equal to the working voltage of the energy storage module.
4. The power supply system according to claim 2 or 3, wherein the output power of the charging module is constant.
5. The power supply system of claim 1, further comprising an external power source, wherein the external power source comprises a power signal output terminal, and the power signal output terminal is electrically connected to the power signal receiving terminal.
6. The power supply system of claim 5, wherein the charging module further comprises a rectifying voltage-limiting unit for adjusting a power signal provided by the external power source.
7. The power supply system of claim 5, wherein the external power source comprises a DC power source or an AC power source.
8. The power supply system of claim 1 wherein said energy storage module comprises a plurality of series connected lithium batteries.
9. An underwater vehicle comprising the power supply system of any one of claims 1 to 8, and further comprising a vehicle body;
the aircraft body is electrically connected with the charging module and the energy storage module respectively.
10. The underwater vehicle of claim 9, further comprising a control module and at least one motor, wherein the control module is electrically connected to the motor for controlling the motor to drive the vehicle body for underwater operations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120378347.5U CN214314658U (en) | 2021-02-18 | 2021-02-18 | Power supply system of underwater vehicle and underwater vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120378347.5U CN214314658U (en) | 2021-02-18 | 2021-02-18 | Power supply system of underwater vehicle and underwater vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214314658U true CN214314658U (en) | 2021-09-28 |
Family
ID=77834431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120378347.5U Active CN214314658U (en) | 2021-02-18 | 2021-02-18 | Power supply system of underwater vehicle and underwater vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214314658U (en) |
-
2021
- 2021-02-18 CN CN202120378347.5U patent/CN214314658U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4309644A (en) | Electric vehicle controller adapted for charge station connection | |
| KR101690607B1 (en) | Portable backup power supply | |
| EP1684397A2 (en) | Portable compound battery unit management system | |
| US20130020983A1 (en) | Rapid charger | |
| CN204870587U (en) | Electricelectric motor car vehicle mounted power and mobile unit's power supply structure | |
| JP2008048473A (en) | Charger | |
| JP5357526B2 (en) | Ship power equipment and operation method thereof | |
| CN105680554A (en) | Power supply and distribution control device for unmanned aerial vehicle | |
| CN103227487A (en) | Fuel cell/lithium ion battery hybrid power energy management system used for electric bicycle | |
| AU2018402306B9 (en) | Solar-powered intelligent apparatus | |
| CN214314658U (en) | Power supply system of underwater vehicle and underwater vehicle | |
| WO2004097958A2 (en) | Electrical energy systems, power supply apparatuses and electrical energy supply methods | |
| CN113320404B (en) | Fuel cell system based on hybrid power and setting method | |
| CN215119008U (en) | Power battery charging and discharging management system | |
| CN202395482U (en) | Multifunctional mobile solar energy power supply | |
| CN212726547U (en) | Solar supplementary power supply system based on primary battery and composite capacitor | |
| CN204992697U (en) | Battery -powered many rotor crafts charger of live that needs car | |
| CN114884116A (en) | Power circuit, new energy control system and energy coordination method | |
| CN209938341U (en) | Continuous power supply device | |
| CN113285516A (en) | Cabinet control device and charging method thereof | |
| CN102820688A (en) | Automobile power system | |
| CN206012875U (en) | A kind of novel electric vehicle emergency power supply | |
| CN2102578U (en) | Power saving safety rapid charger | |
| CN211556897U (en) | Timing charging circuit | |
| CN111817361A (en) | Portable power supply system of continuous power supply for tethered unmanned aerial vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |