CN1691471A

CN1691471A - A structure for making up wheel hub by multiple motors

Info

Publication number: CN1691471A
Application number: CNA2004100372528A
Authority: CN
Inventors: 查祖兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-30
Filing date: 2004-04-30
Publication date: 2005-11-02

Abstract

The invention relates to a wheel hub constructed with multiple motors. The invention is characterized in that multiple motors can be installed simultaneously in the wheel hub as the power source and each motor output power can be reduced dramatically as each motor only need to bare local power output. The number of the motors can be increased or decreased according to the requirement of the power output.

Description

A kind of structure that constitutes wheel hub motor with plural motor

Technical field

The present invention is a kind of structure with plural motor formation wheel hub motor, is meant that especially being exclusively used in electric bicycle hides motor the bicycle dynamic structure design that is installed in cycle hub inside.

Background technology

See also shown in Figure 8, this is for hiding the design that is mounted on cycle wheel hub 10 inside with motor 11, it mainly is form an assembly space 12 in wheel hub 10 after, motor 11 is mounted on 12 inside, assembly space again, and covers from the blockade of wheel hub 10 sides through a capping 13; Motor components promptly is located in the assembly space of wheel hub by latent thus, external form neat appearance comparatively not only, and, can reduce effectively that motor is collided, the damage of reason such as stained because motor components is hidden fully and covers; In this motor is installed in design in the cycle hub, is referred to as the hub-type electric machine.

It should be noted that, the hub-type electric machine all is as power source with single motor at present, and be high electric current, high torsion demand when meeting starting during motor designs, this motor winding must directly constitute with the line that meets the starting current capacity, and the whole coil outward appearance must meet the exquisite flat principle of volume, causing this hub-type electric machine is special requirement, and only is fabricated to the moving bicycle use of power supply specially, and the cost of therefore present hub-type electric machine is quite expensive and restriction is many;

Through above explanation as can be known, be exclusively used in the hub-type electric machine of electric bicycle at present, be subject to starting current height, overall volume must be flat etc. condition, be unfavorable for the defective of industrial circle development and have to involve great expense, the necessity that in addition significantly breaks through is arranged further really, in order to do the actual demand that more can meet industrial circle.

Summary of the invention

Main purpose of the present invention, be to be to provide a kind of structure that constitutes wheel hub motor with plural motor, see through design of the present invention, can with the assembly simultaneously of a plurality of motor in wheel hub as power source, because each independent motor only need be born local power output, so the demanded power output of each motor can significantly reduce, and volume also can significantly reduce; It should be noted that the technological means that sees through this case, the motor that is adopted can be the Small Universal motor of general kenel, can significantly reduce cost for industrial circle.

Description of drawings

Fig. 1 is a structural upright exploded view of the present invention.

Fig. 2 be Fig. 1 in conjunction with stereogram.

Fig. 3 is a wheel hub built-in motor assembled state schematic diagram of the present invention.

Fig. 4 is that the present invention is used in the bicycle view.

Fig. 5 is that the hub side of the 4th figure is analysed and observe enlarged diagram.

Fig. 6 is that double motor of the present invention is implemented view.

Fig. 7 is that three-motor of the present invention is implemented view.

Fig. 8 is traditional hub-type electric machine cross-sectional schematic.

The figure number explanation

(10) wheel hub (11) motor

(12) assembly space (13) capping

(20) wheel hub (21) accommodation space

(22) bearing (23) capping

(231) screw (24) bearing

(30) drive fluted disc (31) driving gear

(32) perforation (40) axle

(41) assembly dish (50) motor

(51) gear (60) electric bicycle

Embodiment

About the present invention for reaching above-mentioned purpose, the technology that is adopted, means and other effect, lift a preferable possible embodiments now and cooperate graphic detailed description as after; At first, please cooperate and consult shown in Fig. 1-5, a kind of structure that constitutes wheel hub motor with plural motor that the embodiment of the invention provided, mainly be a plurality of independent electric motors to be seen through one drive fluted disc, an axle and integrate and be assemblied in the wheel hub, done enough power output and look actual road conditions, wherein:

This wheel hub 20 is the wheel hubs 20 (can be front-wheel or trailing wheel) for electric bicycle 60, forms an accommodation space 21 in the wheel hub 20, offers perforation in wheel hub 20 accommodation spaces 21 sidewalls, and can organize and establish a bearing 22 in it; The accommodation space 21 of this wheel hub 20 can see through a capping 23 and cover this accommodation space 21 of sealing, and can see through screw 231 sealed cappings 23 and wheel hub 20, and capping 23 walls also offer perforation, and can organize and establish a bearing 24 in it;

This drives fluted disc 30, and its inner all side forms driving gear 31, and is provided with perforation 32 in driving fluted disc 30; Driving fluted disc 30 is the accommodation space 21 interior persons that are locked in wheel hub 20;

This axle 40 is perforation and the bearings 24 that wear the fluted disc 30 of overdriving, wheel hub 20 and capping 23, and makes 20 of axle 40 and the wheel hubs relative rotation operation that can carry out; On axle 40, can set firmly an assembly dish 41, for the member assembly;

This motor 50 can be equipped with gear 51 in its power output shaft; Motor 50 can be fixedly arranged on the assembly dish 41 of axle 40, and the driving gear 31 in making motor 50 gears 51 and driving fluted disc 30 is mutually meshing.

The above assembly pass that is each member of the present invention and structure is the position, and by this, the present invention can be mounted on a plurality of motor 50 in electric bicycle 60 wheel hubs 20, as the power source of electric bicycle 60; Now its user mode is described in detail as follows:

Please consult shown in Fig. 1-5 again, see through design of the present invention, can with 50 assembly simultaneously of a plurality of motor in wheel hub 20 as power source (as shown in Figure 3), because each independent motor 50 only need be born local power output, so the demanded power output of each motor 50 can significantly reduce, and volume also can significantly reduce; It should be noted that the technological means that sees through this case, the motor 50 that is adopted can be the Small Universal motor 50 of general kenel, and cost can reduce significantly for industrial circle;

In addition, bicycle is from stopping state to beginning to activate the moment of travelling, and its power requires the highest, and reaches when stablizing high speed when bicycle running speed, and its power requirement is minimum; And see through the design of this case, can when the bicycle power demand is high (during starting), make each motor 50 fully loaded runnings, in order to do enough power and torsion output is provided; And when the bicycle power demand is low (when running at high speed), motor 50 unloadings that order is predetermined are in order to do reducing meaningless power output or loss; In other words, see through this case design and can adjust power output in good time; By this, can really meet the actual demand of electric bicycle;

Moreover electric bicycle is to see through battery as power resources, how to reduce the meaningless loss of electric power at present, increases the up time of equal electric weight battery, is the technological core that all circles are eager to break through for a long time; See through this case design and be in harmony and reach easily, for example: can see through the unloading of local motor 50 as described above, reduce meaningless power output, use economize on electricity; Also or, when battery electric quantity is low, can be with 50 unloadings of local motor, in order to do prolonging the time that can electronicly travel with lower power output;

Moreover, see through this case technology, the visual battery that carries, car weight, vehicle, and accurately assemble enough power sources, and do not have meaningless equipment waste, for example:, can only set two motor 50 (as shown in Figure 6) as perambulator, when compact car uses; And when using as adult car, large car, can set three (as shown in Figure 7), four, five .... motor 50 to meet demand; In other words, compared to the single specification of traditional wheel hub 20 formula motor, see through this case technology and can select the output assembly that is used as power of motor 50 quantity flexibly, and motor 50 quantity increase, subtract quite simple and easy, there is no technical difficulty or restriction, enough development flexibility ratios can be provided for industrial circle.

Claims

1. one kind constitutes the structure of wheel hub motor with plural motor, mainly a plurality of independent electric motors is seen through one and drives fluted disc, an axle and be assemblied in and constitute in the wheel hub; Wherein, form an accommodation space in this wheel hub, and can see through the accommodation space of capping sealing wheel hub, it is characterized in that:

This drives fluted disc, and inner all sides form driving gear, and is provided with perforation in driving fluted disc; Driving fluted disc is the interior person of accommodation space who is locked in wheel hub;

This axle is the perforation that wears the fluted disc of overdriving, wheel hub and capping, and makes the relative rotation operation that can carry out between axle and wheel hub and capping; And can set firmly an assembly dish on axle, for the member assembly;

This motor can be equipped with gear in power output shaft; Each motor can be fixedly arranged on the assembly dish of axle, and makes the gear of motor mutually meshing with the driving gear in driving fluted disc; A plurality of by this motor combinings and see through to drive the rotational power output that fluted disc is made wheel hub in wheel hub.

2. the structure with plural motor formation wheel hub motor according to claim 1 is characterized in that: in the perforation of wheel hub and capping, can each group establish a bearing in it, in order to do wearing the operation that pivots for axle.

3. the structure with plural motor formation wheel hub motor according to claim 1 is characterized in that: two motor unit can be assigned on the assembly dish, and make each motor gear all meshing with the driving gear that drives fluted disc.

4. the structure with plural motor formation wheel hub motor according to claim 1 is characterized in that: three motor unit can be assigned on the assembly dish, and make each motor gear all meshing with the driving gear that drives fluted disc.

5. the structure with plural motor formation wheel hub motor according to claim 1 is characterized in that: four motor unit can be assigned on the assembly dish, and make each motor gear all meshing with the driving gear that drives fluted disc.