CN105846600A

CN105846600A - Motor and model aircraft having motor

Info

Publication number: CN105846600A
Application number: CN201610290397.1A
Authority: CN
Inventors: 任正强
Original assignee: Dongguan Yinyan Electric Technology Co Ltd
Current assignee: Dongguan Yinyan Electric Technology Co Ltd
Priority date: 2016-05-04
Filing date: 2016-05-04
Publication date: 2016-08-10
Anticipated expiration: 2036-05-04
Also published as: CN105846600B

Abstract

The invention belongs to the field of small aircraft equipment, and provides a motor and a model aircraft having the motor. The motor comprises a stator component and also comprises an annular shell, a rotating shaft which is rotatably connected in the middle of the stator component and a head cover component which is connected on the rotating shaft and matched with the annular shell. The stator component is arranged in the annular shell. The head cover component comprises a disc-shaped dustproof cover, multiple air inlet through slots which are evenly arranged along the edge of the dustproof cover, and multiple reinforced structures which perpendicularly extend to the outside along the bottom part of the dustproof cover. The multiple reinforced structures are arranged on the bottom part of the dustproof cover and along the radius direction of the dustproof cover. The multiple air inlet through slots are arranged between the two adjacent reinforced structures. According to the design, the problems in the existing model aircraft competition that the power-to-mass ratio of the motor is reduced in the high-speed operation process and the motor cannot be adaptive to continuous high-speed operation can be solved.

Description

A kind of motor and there is the aeromodelling aerocraft of this motor

Technical field

The invention belongs to the apparatus field of small aircraft, particularly relate to a kind of motor and there is the boat of this motor Mould aircraft.

Background technology

It is a kind of to overweight air that model airplane is called for short " model plane ", has size limitation, with or without Engine, it is impossible to manned airborne vehicle, along with the development of model plane technology, the sports of different types of model plane are more Come the most, need model plane to be capable of lasting high speed contest, thus to model plane motor in model plane are raced Merit matter ratio (power and the ratio of quality) require more and more higher, due to motor merit when persistently running up Matter ratio can reduce, and the height of merit matter ratio influences whether the thrust of motor, and the height of motor thrust determines simultaneously Can model plane adapt to the operating of lasting high speed.

Summary of the invention

It is an object of the invention to provide a kind of motor, it is intended to solve in the sports of existing model plane motor at a high speed In operation process, merit matter ratio can reduce, it is impossible to the problem adapting to persistently run up.

The present invention is so to solve: a kind of motor, including stator module, also includes circular shell, can turn Be automatically connected in the rotary shaft in the middle of described stator module and be connected in described rotary shaft and with described circular shell The skull assembly coordinated, described stator module is positioned at described circular shell, and described skull assembly includes plate-like Dust proof and multiple air intake grooves of uniformly offering along described dust proof edge, and along described dust proof Multiple reinforcement structures that bottom extends perpendicularly outward, multiple described reinforcement structures are in the bottom of described dust proof also Radial direction along described dust proof is arranged, several described air intake grooves are positioned at the described reinforcement of adjacent two Between structure.

The technique effect that the motor that the present invention provides has relative to existing motor is: by being connected to rotation The setting of the skull assembly on axle, and then skull assembly can rotate along with rotary shaft, meanwhile sets Put and bottom the dust proof on skull assembly, be extended with multiple reinforcement structure arranged along dust proof radial direction, These reinforcement structures multiple when skull assembly rotates can concomitant rotation to have the effect being similar to fan, and set Putting the multiple air intake grooves on dust proof edge can be when skull assembly rotates along with the rotation of reinforcement structure And it is drawn into motor internal, and then the effect of cooling rapidly can be played, this reinforcement structure is ensureing screening dirt simultaneously Also there is while lid intensity the effect of fan, which save the space of motor, reduce the quality of motor, And while lowering the temperature, decrease the power loss of copper wastage, and then can ensure that the raising of merit matter ratio and stablize.

The present invention also provides for a kind of aeromodelling aerocraft with aforesaid motor, the so aeromodelling aerocraft of design Merit matter ratio is higher, and the ability continuing high-speed flight is more preferable.

Accompanying drawing explanation

Fig. 1 is the overall structure figure of the motor that the embodiment of the present invention provides.

Fig. 2 is the overall structure exploded view of the motor that the embodiment of the present invention provides.

Fig. 3 is the topology view one of skull assembly in the motor that the embodiment of the present invention provides.

Fig. 4 is the topology view two of skull assembly in the motor that the embodiment of the present invention provides.

Fig. 5 is circular shell and the structure chart of stator module in the machine that the embodiment of the present invention provides.

Detailed description of the invention

In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein Only in order to explain the present invention, it is not intended to limit the present invention.

It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, and it can With directly on another element or be connected on this another element.When an element is known as " even It is connected to " another element, it can be directly to another element or be indirectly connected to this another yuan On part.

Also, it should be noted the orientation term such as left and right, upper and lower in the embodiment of the present invention, it is only mutual For relative concept or with the normal operating condition of product as reference, and should not be regarded as restrictive 's.

The merit matter of motor is than the ratio referred between power and quality, and can this be to weigh motor run up A reference, formulation is expressed as: P/M=gh/t, in the case of flight time t, flying height h are certain, Quality is the lightest, and its merit matter ratio is the highest；Meanwhile, also electric efficiency is affected by temperature, the main body of this aspect Now in the impact of stator or rotor copper loss, when temperature is the highest, the winding D.C. resistance of stator or rotor is the biggest, When same current, it is lost the biggest, and then power is the lowest；Namely in quality one timing, temperature rising can be dropped The merit matter ratio of low motor；By the ratio of the impact of actual temp it is: (K1+ θ 1)/(K1+ θ 2), wherein (θ 1, θ 2 respectively participates in two temperature compared, K1 be winding conductor material when 0 DEG C temperature-coefficient of electrical resistance fall Number), and then after temperature raises, θ 1 > θ 2, the ratio of copper loss is more than 1, namely copper loss is with temperature rising Raise.

Refer to shown in accompanying drawing 1 to Fig. 5, in embodiments of the present invention, it is provided that a kind of motor, including stator Assembly 50, also includes circular shell 20, the rotary shaft 30 in the middle of stator module 50 that is rotatably connected and connects The skull assembly 10 being connected in rotary shaft 30 and coordinate with circular shell 20, this stator module 50 is positioned at ring In shape housing 20, this skull assembly 10 includes the dust proof 102 of plate-like and along dust proof 102 edge simultaneously The multiple air intake grooves 104 uniformly offered, and extend perpendicularly outward along the bottom of dust proof 102 multiple Reinforcement structure 103, this reinforcement structure 103 is preferably platy structure, and these reinforcement structures 103 multiple are hiding dirt The bottom of lid 102 radial direction along this dust proof 102 are arranged, and several air intake grooves 104 Between several reinforcement structures 103, the present embodiment is preferably single air intake groove 104 and is positioned at two and adds Between strong structure 103；Can certainly be according to the size of air intake groove 104, two reinforcement structures 103 Between two or more air intake groove 104 is set.

The motor more than designed, the setting of the skull assembly 10 by being connected in rotary shaft 30, Jin Ertou Cap assemblies 10 can rotate along with rotary shaft 30, the screening dirt being meanwhile arranged on skull assembly 10 Lid 102 bottom be extended with multiple along dust proof 102 radial direction arrange reinforcement structure 103, multiple should Reinforcement structure 103 when skull assembly 10 rotates can concomitant rotation to have the effect being similar to fan, and set Putting the multiple air intake grooves 104 on dust proof 102 edge can be when skull assembly 10 rotates along with reinforcement The rotation of structure 103 and be drawn into motor internal, and then the effect of cooling rapidly can be played, this reinforcement simultaneously Structure 103 also has the effect of fan while ensureing dust proof 102 intensity, this avoid traditional Motor needs additional cooling fan, and then saves the space of motor, reduces the quality of motor, and Decrease the power loss of copper wastage while cooling, and then can ensure that the raising of merit matter ratio and stablize.

In the present embodiment, as shown in Figure 3 and Figure 4, the reinforcement structure 103 of this tabular be positioned at two adjacent Air intake groove 104 between, and this skull assembly 10 lid is located at the top of circular shell 20, and then should Directly the structure within circular shell 20 can be lowered the temperature when skull assembly 10 rotates, additionally, at this Preferably being provided with screen pack on air intake groove 104, this dust proof 102 also has the dust blocking outside simultaneously Enter into the inside of motor etc. oarse-grained direct object, so design falls into foreign matter in significantly reducing motor Risk.

Specifically, as shown in Figure 2 and Figure 5, in embodiments of the present invention, this motor also includes multiple in ring The magnetic part 201 on circular shell 20 inwall is arranged and be connected to shape, and magnetic part 201 is preferably magnet herein Block, and multiple magnetic part 201 is preferably and is connected to ringwise on the inwall of this circular shell 20, the most All it is wound with on this magnetic part 201 individual that to be wound with the face of power transmission line on power transmission line, and this magnetic part 201 equal Higher compared to the square fast magnetic force of magnet for arc surface, so design, and then the number of turns of the power transmission line being wound around Increase accordingly, and then the magnetic induction force produced after power transmission line energising is higher, and then the power that can increase motor is defeated Go out, namely the merit matter ratio of motor can be strengthened；

In the present embodiment, as shown in Figure 2 and Figure 5, this stator module 50 includes the ring at centrally located position Shape parts, this endless member is provided with and is available for the through hole 501 that rotary shaft 30 passes, and along this endless member Outer wall multiple magnetic cutting stators 502 of being outwards uniformly distributed and extending, these magnetic cutting stators 502 multiple in The direction of radius of circle extends, and then the multiple magnetic cutting stators 502 after extension form a circle with through hole 501 The ring disk, is provided with the space 503 being available for heat radiation, so sets between the most adjacent two these magnetic cutting stators 502 Count so that quickly form convection current through the air of air intake groove 104 entrance with the device of motor internal heating, To reach to reduce rapidly the effect of the temperature of motor internal.

Specifically, as shown in Figures 2 to 5, in embodiments of the present invention, this skull assembly 10 also includes edge The extension annulus 106 that the bottom margin of dust proof 102 extends perpendicularly outward, along extending on annulus 106 and the back of the body Continue from direction, dust proof 102 bottom surface to be extended with multiple boss 1061 can being connected with circular shell 20；With Time between two adjacent magnetic parts 201, leave gap 202, this boss 1061 interference fits or gap 202 It is connected in gap 202.

In the present embodiment, as shown in Figures 2 to 4, this extension annulus 106 is preferably along these reinforcements multiple The circulus that the bottom surface of structure 103 is downwardly extending, and the diameter of this extension annulus 106 is preferably Identical with diameter of a circle maximum on this dust proof 102；This boss 1061 is preferably and is equidistantly distributed in extension On annulus 106, gap 202 interference fits between this boss 1061 and adjacent magnetic part 201 or On the one hand gap 202 coordinates so that the connection between upper cover and circular shell 20 is more stable, on the other hand, Gap 202 between multiple magnetic parts 201 is filled up by these boss 1061 multiple, can substantially reduce rotary shaft Cogging torque in 30 rotation processes, and then make the rotation process of rotary shaft 30 the most steady.

And then, in the present embodiment, multiple magnetic parts 201 that this circular shell 20 and inwall thereof connect Link together with skull assembly 10, and along with rotary shaft 30 rotates, form the rotor of this motor, namely This motor is outer-rotor structure.

Specifically, as shown in Figures 1 to 4, in embodiments of the present invention, this skull assembly 10 also includes edge Dust proof 102 upper surface middle part extend perpendicularly outward can the output shaft 101 of external tumbler, meanwhile, The connecting hole 105 being available for being connected with rotary shaft 30 it is provided with in this output shaft 101；Meanwhile, in this output Axle 101 is provided with the left-handed or external screw thread 1011 of dextrorotation, this tumbler is provided with on output shaft 101 The internal thread that external screw thread 1011 coordinates, on this external screw thread 1011, also bottom is additionally provided with nylon ring, and The end face of this output shaft 101 is additionally provided with annular knurl decorative pattern, and this nylon ring and arranging of annular knurl decorative pattern all can be effectively Prevent tumbler from getting loose.

In the present embodiment, as shown in Figures 1 to 4, this rotary shaft 30 is fixedly connected on by keyway arrangements In this connecting hole 105, or interference fits between this rotary shaft 30 and this connecting hole 105, so design can So that driving skull assembly 10 to rotate when rotary shaft 30 rotates.

In the present embodiment, as shown in Figures 1 to 4, it is provided with left-handed external screw thread 1011 when this output shaft 101 Time, this tumbler is provided with the internal thread sealed with this external screw thread 1011；Further, this output shaft 101 turn Also sealed with tumbler direction, dynamic direction is identical, and even output shaft 101 has sinistral external thread 1011, its Sealed direction is left, then its rotation direction the most to the left, i.e. rotates counterclockwise；If output shaft 101 has dextrorotation External screw thread 1011, its sealed direction is right, then its rotation direction the most to the right, i.e. rotates clockwise.So set Meter can ensure that during driving tumbler to rotate when output shaft 101 rotates, between the two threaded Can thus avoid the phenomenon that tumbler gets loose occur along with rotating screw togather increasingly tighter；Certainly, when When tumbler is preferably screw, so design avoids the generation of " penetrating oar " accident.

Specifically, as depicted in figs. 1 and 2, in embodiments of the present invention, this motor also includes bottom 40, This rotary shaft 30 is the most spacing to be connected on bottom 40, and this circular shell 20 is positioned at skull assembly Between 10 and bottom 40.

In the present embodiment, as depicted in figs. 1 and 2, this bottom 40 is provided with engraved structure 402, so The quality of motor can be reduced, be additionally provided with rotating bearing structure 401 on this bottom 40, this rotary shaft 30 simultaneously It is connected to the centre of this rotating bearing structure 401, and the lower end of this rotary shaft 30 is by clip spring structure 301 Spacing it is connected on bottom 40；And then, this rotary shaft 30 is rotatably connected on by rotating bearing structure 401 On bottom 40, and skull assembly 10 is driven to rotate together with circular shell 20.

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention Protection domain within.

Claims

1. a motor, including stator module, it is characterised in that: also include circular shell, be rotatably connected Rotary shaft in the middle of the described stator module and be connected in described rotary shaft and coordinate with described circular shell Skull assembly, described stator module is positioned at described circular shell, and described skull assembly includes discoid screening Dirt lid and the multiple air intake grooves uniformly offered along described dust proof edge, and the bottom along described dust proof The multiple reinforcement structures extended perpendicularly outward, multiple described reinforcement structures are in the bottom of described dust proof and along institute The radial direction stating dust proof is arranged, several described air intake grooves are positioned at the described reinforcement structure of adjacent two Between.

2. motor as claimed in claim 1, it is characterised in that: also include multiple arranging in the form of a ring and connecting Magnetic part on described circular shell inwall, described stator module includes the endless member at centrally located position, Described endless member is provided with and is available for the through hole that described rotary shaft passes, and along described endless member outer wall to The outer multiple magnetic cutting stators uniformly extended.

3. motor as claimed in claim 2, it is characterised in that: it is wound with power transmission line on described magnetic part, And the face being wound with described power transmission line on described magnetic part is arc surface.

4. motor as claimed in claim 2, it is characterised in that: multiple described magnetic cutting stators are radius of circle Direction extend, and be provided with between adjacent two described magnetic cutting stators be available for heat radiation space.

5. motor as claimed in claim 2, it is characterised in that: described skull assembly also includes along described screening The extension annulus that the bottom margin of dirt lid extends perpendicularly outward, along described extension annulus and deviate from described screening dirt Direction, lid bottom surface continues to be extended with multiple boss can being connected with described circular shell.

6. motor as claimed in claim 5, it is characterised in that: stay between two adjacent described magnetic parts Gap, described boss interference fits or matched in clearance is had to be connected in described gap.

7. motor as claimed in claim 1, it is characterised in that: described skull assembly also includes along described screening The output shaft being available for external tumbler extended perpendicularly outward in the middle part of dirt cap upper surface, sets in described output shaft There is the connecting hole being available for being connected with described rotary shaft.

8. motor as claimed in claim 7, it is characterised in that: described output shaft is provided with left-handed or dextrorotation External screw thread, described tumbler is provided with the internal thread coordinated with the described external screw thread on described output shaft, and The rotation direction of described output shaft is identical with the sealed direction of described tumbler.

9. the motor as described in any one of claim 1-8, it is characterised in that: also include bottom, described turn Moving axis is the most spacing to be connected on described bottom, and described circular shell is positioned at described skull assembly and institute State between bottom.

10. an aeromodelling aerocraft, it is characterised in that: include the electricity as described in any one of claim 1-9 Machine.