CN212099365U - Hybrid power driving device and unmanned aerial vehicle - Google Patents
Hybrid power driving device and unmanned aerial vehicle Download PDFInfo
- Publication number
- CN212099365U CN212099365U CN202020684515.9U CN202020684515U CN212099365U CN 212099365 U CN212099365 U CN 212099365U CN 202020684515 U CN202020684515 U CN 202020684515U CN 212099365 U CN212099365 U CN 212099365U
- Authority
- CN
- China
- Prior art keywords
- wheel
- unmanned aerial
- aerial vehicle
- transmission
- engine
- 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
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a hybrid drive arrangement and unmanned aerial vehicle. The hybrid power driving device comprises an engine, a power distribution module, a plurality of main electric driving units and auxiliary electric driving units; the main electric drive units are respectively connected with the rotors of the unmanned aerial vehicle; the power distribution module comprises a plurality of transmission mechanisms which are connected in sequence. The transmission mechanism comprises a planet carrier, a planet wheel, a sun wheel and a transmission wheel. The planet carrier of the first transmission mechanism is connected with the engine; from the first transmission mechanism, the sun gear of the previous transmission mechanism is connected with the planet carrier of the next transmission mechanism; the sun gear of the last transmission is connected to the auxiliary electric drive unit. The rotor that engine accessible power distribution module direct drive unmanned aerial vehicle is rotatory, compares in the engine generate electricity earlier then by the electric mode of driving, has higher energy conversion efficiency. Because a power generation system is omitted, the whole machine has lighter weight and smaller volume, and meanwhile, the cost is saved.
Description
Technical Field
The utility model relates to an unmanned aerial vehicle drives technical field, especially relates to a hybrid drive arrangement and unmanned aerial vehicle.
Background
The endurance problem is the most important deadly short board of unmanned aerial vehicle, has restricted the development of trade greatly. The battery cruising ability of the unmanned aerial vehicle is extremely improved. Unmanned aerial vehicles on the market mainly adopt lithium polymer battery as main power, and duration is generally about 30 minutes. Especially, many rotor unmanned aerial vehicle are consumption level among the unmanned aerial vehicle and commercial best model, mainly use the electromotion as the owner. However, the lithium battery has the defects of low energy density, short service life and the like, so that the flight time of the unmanned aerial vehicle is short, the flight distance is short, and the development of the multi-rotor unmanned aerial vehicle in various fields is severely restricted.
The unmanned aerial vehicle power system determines the endurance state, and can be divided into an oil-driven unmanned aerial vehicle, an electric unmanned aerial vehicle, a solid oxide fuel unmanned aerial vehicle, a solar unmanned aerial vehicle and a hybrid unmanned aerial vehicle according to the difference of power sources.
The fuel engine is used as power, long endurance can be realized, and the unmanned aerial vehicle is very suitable for a fixed-wing unmanned aerial vehicle but not suitable for a mainstream multi-rotor unmanned aerial vehicle; the most effective method at present is to adopt an oil-electricity hybrid power system to bring a long endurance effect to a multi-rotor unmanned aerial vehicle. But bulky and heavy, the security deviation problem is prominent, influences wherein unmanned aerial vehicle's popularization practicality.
The hybrid power system of the multi-rotor unmanned aerial vehicle consists of an electric drive power system and a conventional engine power system, so that good take-off and climbing performance and combination of silence and overlong navigation are realized. The internal combustion engine drives the generator to charge the battery, and the battery then powers the power engine.
The existing mature oil-electricity hybrid power system is generated by a single oil engine, charges a battery and drives a motor to drive a rotor wing, and can usually meet the endurance of 2-4 hours. Because of the independent generator charging, the conversion efficiency is reduced, the weight and the volume of the whole machine are increased, the load and the endurance are reduced, and the cost is increased. Although the cruising ability is good, the rotor wing is directly driven by the motor power, and if the output power of the motor is not improved, the efficiency and the load capacity are poor; limiting its application to small and medium sized multi-rotor aircraft. In a word, 1) the load capacity is influenced by the overlarge weight and the overlarge volume of the hybrid power system, the hybrid power system cannot be applied to small and medium-sized multi-rotor aircrafts, 2) a generator system is added, the cost of the whole aircraft is increased, and 3) the power of an engine is not directly driven, so that the conversion efficiency is low.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a hybrid drive device and unmanned aerial vehicle aims at solving among the prior art and thoughtlessly moves the problem that driving system weight is bulky, with high costs and energy conversion efficiency is low.
In order to solve the above problem, in a first aspect, an embodiment of the present invention provides a hybrid driving apparatus, which is applied to an unmanned aerial vehicle, where the unmanned aerial vehicle includes a plurality of rotors; the hybrid power driving device comprises an engine, a power distribution module, a plurality of main electric driving units and auxiliary electric driving units; the main electric drive units are respectively connected with the rotors of the unmanned aerial vehicle; the power distribution module comprises a plurality of transmission mechanisms which are connected in sequence; the transmission mechanism comprises a planet carrier, a planet wheel, a sun wheel and a transmission wheel; the transmission wheel is of an annular structure, an inner gear ring is arranged on the inner side of the transmission wheel, and an outer gear ring is arranged on the outer side of the transmission wheel; the outer gear ring of the driving wheel is connected with the rotor wing of the unmanned aerial vehicle; the planet carrier is arranged on one side of the driving wheel, and the sun wheel is arranged in the center of the driving wheel; the planet gear is arranged on the planet carrier and is respectively meshed with the sun gear and the inner gear ring of the transmission wheel; the planet carrier of the first transmission mechanism is connected with the engine; from the first transmission mechanism, the sun gear of the previous transmission mechanism is connected with the planet carrier of the next transmission mechanism; the sun gear of the last transmission is connected to the auxiliary electric drive unit.
The main electric drive unit comprises a main motor and a first reduction gear set, and the main motor is connected with an output shaft of the rotor wing through the first reduction gear set.
The auxiliary electric drive unit comprises an auxiliary motor and a second reduction gear set, and the auxiliary motor is connected with the sun gear of the last transmission mechanism through the second reduction gear set.
The technical scheme is that an outer gear ring of the driving wheel is connected with an output shaft of the rotor wing through a third reduction gear set.
The further technical scheme is that the engine is connected with a planet carrier of the first transmission mechanism through a middle shaft.
The hybrid power driving device further comprises a controller, and the main electric driving unit and the auxiliary electric driving unit are connected with and controlled by the controller.
The transmission mechanism comprises a plurality of planet wheels, and the planet wheels are uniformly arranged in a gap between the sun wheel and the transmission wheel.
The hybrid power driving device further comprises a storage battery, and the storage battery is respectively connected with the main electric driving unit and the auxiliary electric driving unit.
The further technical scheme is that the storage battery is a lithium battery.
In a second aspect, an embodiment of the present invention provides an unmanned aerial vehicle, where the unmanned aerial vehicle includes the first aspect.
Compared with the prior art, the embodiment of the utility model provides a technical effect that can reach includes:
through using the utility model discloses technical scheme, engine accessible power distribution module direct drive unmanned aerial vehicle's rotor is rotatory, compares in prior art the engine generate electricity earlier and then by the electrically driven mode, has higher energy conversion efficiency. Owing to saved power generation system, can make the quality of complete machine lighter, the volume is littleer, is applicable to miniature unmanned aerial vehicle, has also practiced thrift the cost simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural diagram of a power distribution module of a hybrid drive device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a main electric driving unit of a hybrid power driving device according to an embodiment of the present invention.
Reference numerals
The power distribution module 100, the main electric drive unit 200, the transmission mechanism 10, the planet gears 11, the sun gear 12, the transmission wheel 13, the inner gear ring 131, the outer gear ring 132, the main motor 21, the first reduction gear set 22, the third reduction gear set 20, and the output shaft 30.
Detailed Description
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, wherein like component numbers represent like components. It is obvious that the embodiments to be described below are only a part of the embodiments of the present invention, and not all of them. 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.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the embodiments of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the description of the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Referring to fig. 1-2, an embodiment of the present invention provides a hybrid drive device, which is applied to an unmanned aerial vehicle, where the unmanned aerial vehicle includes a plurality of rotors. The hybrid driving apparatus includes an engine, a power distribution module 100, a plurality of main electric driving units 200, and an auxiliary electric driving unit.
A plurality of main electric drive units 200 respectively with unmanned aerial vehicle's a plurality of rotors are connected for drive unmanned aerial vehicle's rotor rotates.
The power distribution module 100 includes a plurality of transmission mechanisms 10 connected in sequence; the transmission mechanism 10 includes a planet carrier, a planet wheel 11, a sun wheel 12 and a transmission wheel 13. The transmission wheel 13 is of an annular structure, an inner gear ring 131 is arranged on the inner side of the transmission wheel 13, and an outer gear ring 132 is arranged on the outer side of the transmission wheel 13. The outer ring gear 132 of drive wheel 13 with unmanned aerial vehicle's rotor is connected, is used for the drive unmanned aerial vehicle's rotor rotates.
The planet carrier is arranged on one side of the driving wheel 13, the sun wheel is arranged in the center of the driving wheel, and the planet wheel 11 is arranged on the planet carrier and is respectively meshed with the sun wheel 12 and the inner gear ring 131 of the driving wheel 13.
In the embodiment of the present invention, in the plurality of sequentially connected transmission mechanisms 10, the planet carrier of the first transmission mechanism 10 is connected to the engine; starting from the first gear mechanism 10, the sun gear 12 of the previous gear mechanism 10 is connected with the planet carrier of the next gear mechanism 10; the sun gear 12 of the last gear mechanism 10 is connected to the auxiliary electric drive unit.
Based on the above structural design, the engine drives the planet carrier of the first transmission mechanism 10 to rotate, and the sun gear 12 and the planet carrier of the front and rear transmission mechanisms 10 can be linked to drive each transmission mechanism 10 to sequentially operate and output power to each rotor wing.
It should be noted that, in the embodiment of the present invention, the engine needs to be started by the auxiliary electric driving unit, and the specific process is as follows: the auxiliary electric drive unit is started and drives the four-stage sun gear 12 to rotate at low speed; the planetary carrier and the sun gear 12 of each transmission mechanism 10 are sequentially driven to operate, and finally the engine is driven to operate to start the engine. As soon as the engine start is successful, the engine speed is rapidly raised to the idle state, while the auxiliary electric drive unit immediately stops the electric drive.
The utility model discloses technical scheme, engine accessible power distribution module 100 direct drive unmanned aerial vehicle's rotor is rotatory, compares in prior art the engine generate electricity earlier again by the electrically driven mode, has higher energy conversion efficiency. Owing to saved power generation system, can make the quality of complete machine lighter, the volume is littleer, is applicable to miniature unmanned aerial vehicle, has also practiced thrift the cost simultaneously.
Referring to fig. 1-2, in certain embodiments, such as the present embodiment, the main electric drive unit 200 includes a main electric machine 21 and a first reduction gear set 22, the main electric machine 21 being coupled to the rotor output shaft 30 through the first reduction gear set 22. The first reduction gear set 22 functions as a speed match.
Further, the auxiliary electric drive unit comprises an auxiliary electric motor and a second reduction gear set, by means of which the auxiliary electric motor is connected with the sun gear 12 of the last transmission mechanism 10. The second reduction gear set serves as a speed match.
Further, the outer ring gear 132 of the transmission wheel 13 is connected to the output shaft 30 of the rotor via a third reduction gear set 20. The third reduction gear set 20 functions as a speed match.
Further, the engine is connected to the carrier of the first transmission mechanism 10 through a bottom bracket.
Further, the hybrid driving device further includes a controller, and the main electric driving unit 200 and the auxiliary electric driving unit are connected with and controlled by the controller.
Further, the transmission mechanism 10 includes a plurality of planet wheels 11, and the plurality of planet wheels 11 are uniformly arranged in a gap between the sun wheel 12 and the transmission wheel 13.
Further, the hybrid driving apparatus further includes a battery, and the battery is connected to the main electric driving unit 200 and the auxiliary electric driving unit, respectively.
Further, the storage battery is a lithium battery.
Description of the working principle:
(1) engine start
The auxiliary electric drive unit is started and drives the last sun gear to rotate at low speed; the main electric drive unit controls the driving wheel to be in a static state, and the planet carrier and the sun gear of each driving mechanism are sequentially driven to operate and finally drive the engine to operate so as to start the engine. As soon as the engine start is successful, the engine speed is rapidly raised to the idle state, while the auxiliary electric drive unit immediately stops the electric drive.
(2) Rotor operation and control
After the engine is stable in idling, the engine is controlled by an electronic control instruction to control the engine to operate at the optimal operating rotating speed of 50% -75% of load, the engine is transmitted to each rotor wing through the power distribution module, the controller receives information instructions of the flight control module, the rotating speed and the torque of the output shaft of each rotor wing are automatically adjusted, and the flight attitude and the flight mode are executed. The unmanned aerial vehicle can fly in the air such as take-off, landing, hovering, steering, advancing, backing, accelerating and decelerating.
(3) Hybrid operation and energy recovery: because the engine is controlled to operate under the optimal rotating speed load, the fluctuation of the rotating speed of the engine is small, and the kinetic energy distributed to each rotor wing is excessive in the stable state of the unmanned aerial vehicle, so that the auxiliary electric drive unit is switched into a power generation mode, the electric energy is converted into electric energy to be stored in a storage battery, and the electric energy is supplied to the main electric drive unit to supplement and drive the rotor wings.
If the engine power is not adequately distributed to the kinetic energy of the rotors, the main electric drive unit increases the electric drive power to supplement the inadequate kinetic energy.
Description of the mode of operation
(1) Takeoff and landing mode
When the main electric drive unit does not participate in driving the rotor wings or the main motors keep the same rotating speed and keep driving, the power of the engine is uniformly distributed to each output shaft and drives each rotor wing to have the same rotating speed, the auxiliary electric drive unit participates in adjusting the rotating speed of the last sun wheel, and the rotating speeds of the rotor wings are changed (increased or decreased) synchronously by the sun wheels at all levels.
(2) Mode/attitude adjustment
According to the instructions of the flight control system, the controller controls the main electric drive units to participate in driving, each level of main electric drive units can independently control the corresponding rotary wing rotating speed change, each rotary wing can independently implement rotating speed adjustment, and the flight mode and the flight attitude (such as steering, advancing and the like) can be changed.
The embodiment of the utility model provides an unmanned aerial vehicle is still provided, unmanned aerial vehicle includes the hybrid drive device that the above embodiment provided.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, while the invention has been described with respect to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
The above description is for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A hybrid drive device is characterized in that the hybrid drive device is applied to an unmanned aerial vehicle, and the unmanned aerial vehicle comprises a plurality of rotors; the hybrid power driving device comprises an engine, a power distribution module, a plurality of main electric driving units and auxiliary electric driving units; the main electric drive units are respectively connected with the rotors of the unmanned aerial vehicle; the power distribution module comprises a plurality of transmission mechanisms which are connected in sequence; the transmission mechanism comprises a planet carrier, a planet wheel, a sun wheel and a transmission wheel; the transmission wheel is of an annular structure, an inner gear ring is arranged on the inner side of the transmission wheel, and an outer gear ring is arranged on the outer side of the transmission wheel; the outer gear ring of the driving wheel is connected with the rotor wing of the unmanned aerial vehicle; the planet carrier is arranged on one side of the driving wheel, and the sun wheel is arranged in the center of the driving wheel; the planet gear is arranged on the planet carrier and is respectively meshed with the sun gear and the inner gear ring of the transmission wheel; the planet carrier of the first transmission mechanism is connected with the engine; from the first transmission mechanism, the sun gear of the previous transmission mechanism is connected with the planet carrier of the next transmission mechanism; the sun gear of the last transmission is connected to the auxiliary electric drive unit.
2. The hybrid drive of claim 1, wherein the primary electric drive unit includes a primary electric motor and a first reduction gear set, the primary electric motor being coupled to the output shaft of the rotor through the first reduction gear set.
3. Hybrid drive as claimed in claim 1, characterized in that the auxiliary electric drive unit comprises an auxiliary electric motor and a second reduction gear set, by means of which the auxiliary electric motor is connected with the sun gear of the last transmission.
4. Hybrid drive according to claim 1, characterized in that the outer ring of the drive wheel is connected to the output shaft of the rotor via a third reduction gear set.
5. A hybrid drive as claimed in claim 1, characterized in that the engine is connected to the planet carrier of the first gear unit via a central shaft.
6. Hybrid drive as claimed in claim 1, characterized in that it further comprises a controller, to which the main electric drive unit and the auxiliary electric drive unit are connected and controlled.
7. The hybrid drive of claim 1, wherein the transmission comprises a plurality of planets, the plurality of planets being uniformly disposed in a gap between the sun and the drive wheel.
8. Hybrid drive as claimed in claim 1, characterized in that it further comprises a battery, which is connected to the main electric drive unit and to the auxiliary electric drive unit, respectively.
9. The hybrid drive unit according to claim 8, wherein the battery is a lithium battery.
10. An unmanned aerial vehicle comprising a hybrid drive as claimed in any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020684515.9U CN212099365U (en) | 2020-04-28 | 2020-04-28 | Hybrid power driving device and unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020684515.9U CN212099365U (en) | 2020-04-28 | 2020-04-28 | Hybrid power driving device and unmanned aerial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212099365U true CN212099365U (en) | 2020-12-08 |
Family
ID=73618909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020684515.9U Active CN212099365U (en) | 2020-04-28 | 2020-04-28 | Hybrid power driving device and unmanned aerial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212099365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021217832A1 (en) * | 2020-04-28 | 2021-11-04 | 深圳市三庆新能源科技有限公司 | Hybrid drive device and unmanned aerial vehicle |
-
2020
- 2020-04-28 CN CN202020684515.9U patent/CN212099365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021217832A1 (en) * | 2020-04-28 | 2021-11-04 | 深圳市三庆新能源科技有限公司 | Hybrid drive device and unmanned aerial vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210276723A1 (en) | Power assembly, power system and unmanned aerial vehicle | |
| CN108082499B (en) | Planetary hybrid helicopter power coupling system and driving method | |
| CN102971216A (en) | Hybrid drive and energy system for aircraft | |
| CN105711826A (en) | Tandem type oil-electric hybrid unmanned aerial vehicle | |
| CN108082500A (en) | A kind of fixed-wing formula hybrid power aircraft driving device and driving method | |
| CN105691611A (en) | Hybrid power multi-rotor type aircraft and control method thereof | |
| AU2018357230A1 (en) | Vertical take-off and landing aircraft and transformation gear sets for same | |
| CN109733621A (en) | A kind of hybrid power unmanned plane promoting mode more | |
| CN109094790B (en) | Power configuration scheme and control method for hybrid power system of helicopter | |
| CN102529674B (en) | Water-cooled double-planet speed-reduction-motor combined hybrid device | |
| CN104875598A (en) | Hybrid power system, hybrid power vehicle with same and driving method | |
| CN112758335B (en) | Series-parallel hybrid power unmanned aerial vehicle power system and control method thereof | |
| CN104890496A (en) | Hybrid power system, hybrid power vehicle and hybrid driving method | |
| CN112810811B (en) | Double-rotor unmanned aerial vehicle | |
| CN106828068A (en) | A kind of energy storage device and its control method for heavy motor vehicle driven by mixed power | |
| CN207791151U (en) | A kind of novel hybrid complex controll aircraft | |
| CN212099365U (en) | Hybrid power driving device and unmanned aerial vehicle | |
| CN207826569U (en) | A kind of fixed-wing formula hybrid power aircraft driving device | |
| CN117585170A (en) | Distributed multi-oar vertical take-off and landing aircraft hybrid power system and management method | |
| CN206231175U (en) | The dynamical system of hovercar | |
| CN204774600U (en) | Hybrid power system and hybrid vehicle who has this system | |
| CN209305857U (en) | Fixed-wing electric airplane co-axial contra rotating propeller dynamical system and fixed-wing electric airplane | |
| CN111409837A (en) | Hybrid power driving device and unmanned aerial vehicle | |
| CN112706929B (en) | Hybrid power system for fixed wing unmanned aerial vehicle and propelling method | |
| CN205469813U (en) | Many rotor crafts of hybrid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |