CN1041371C

CN1041371C - Electric wheel ring motor

Info

Publication number: CN1041371C
Application number: CN93115643A
Authority: CN
Inventors: 李宜和
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-21
Filing date: 1993-12-21
Publication date: 1998-12-23
Anticipated expiration: 2013-12-21
Also published as: CN1101767A

Abstract

The present invention relates to an electric rim motor for an electric bicycle. An armature is mainly formed by the method that multilayer flat type thin silicon steel sheets are superposed, and coils are wound to the thin silicon steel sheets. A flat type commutator is inserted into a center of the armature to form a whole, a passage and an opening are arranged in a wheel center shaft for penetrating a power supply line, and a motor is connected with a program control circuit which is respectively connected with a power supply and an infrared transmitting and receiving device. The present invention can effectively reduce the width and the volume of the motor, and can generate sufficient torsion without a planetary gear. When the wheel speed is above a constant speed, the power supply can drive the motor to avoid the danger which is happened by the method that the motor is suddenly started for falsely touching voltage.

Description

The electric wheel ring motor

The present invention relates to a kind of power-actuated electric wheel ring motor that is used for electric bicycle.

General electric bike commonly used all adopts planetary gear speed-reduction to rotate to drive shell, motor adopts traditional cylindrical shape, its volume and weight are very big, be difficult to stress light and handy wheel rim suitable, and it is to adopt general switch, power supply one is opened promptly walking at full speed, has the danger that causes unexpected injury easily.In No. 3897843 patent case of the U.S. as bulletin in one or nine on Augusts 5, in the Seventh Five-Year Plan, commutator on the disclosed motor armature is and the shaft parallel setting, therefore motor volume and width are too big, and this motor is when directly being contained on the wheel, the torsion deficiency that it produced, must use planetary gearsets that enough torques are provided, so that make volume and weight to dwindle, be difficult to use stressing on the light and handy wheel rim; In addition, its power line passes from the motor stationary housing, and is too far away apart from central shaft, must design the centre bearing that very big wheel rim shell uses and cooperate, make in textural comparatively difficulty and inconvenient, so that not satisfactory in practicality.In addition, the applicant once receives the coiling group of film (myler) or mica sheet (mica) with wheat and constitutes armature, and field magnet is located at the both sides of armature coil, but that the torsion that this device produced is also disliked slightly is not enough, therefore to increase torque by planetary gearsets, still need be improved textural.

Based on the existing various shortcomings of above-mentioned known technology, purpose of the present invention is to provide the electric wheel ring that a kind of torsion is big, volume is little, in light weight and safe and practical motor for electric bike.

Solution of the present invention is as follows.It mainly contains formations such as shell, motor field frame, armature, platypelloid type commutator, field magnet, tube axle, bearing, shell block, control cabinet and battery case, stacked by the thin silicon steel sheet of multilayer to constitute armature, and the platypelloid type commutator is vertical with the tube axle and smooth being embedded at the armature center becomes one, with reduction motor width and volume, this armature is installed in the motor field frame, it is characterized in that, motor field frame is positioned at shell, one side of wheel center axle is provided with hollow channel, and this passage is in position outwards offered a perforation and passed through for power lead; One control cabinet is connected with motor, is provided with sequence circuit in this control cabinet, and this sequence circuit is connected with power supply and infrared transmitting receiver respectively.

As mentioned above, single unit system structure of the present invention is really different with at present general common technology, and it can improve the various shortcomings of electric bicycle motor-in-wheel commonly used, can promote effect in the use.Its novel and reasonable structure has been dwindled motor volume and weight effectively, does not need planetary gear to cooperate, and motor can produce enough torsion; The employing of infrared transmitting receiver and sequence circuit, can calculate the signal that is received comes finding speed with the control electric power output voltage, thereby realize only power supply ability drive motor when wheel velocity arrival constant speed is above, and when vehicle wheel rotational speed is lower than a certain constant speed, then cuts off the electricity supply automatically and avoid unexpected danger.Like this, it is little, in light weight to make that single unit system structure of the present invention has reached volume, has simple and easy, economic, safe and practical good efficacy simultaneously.

Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in detail.

Fig. 1 is a perspective exploded view of the present invention;

Fig. 2 is a generalized section of the present invention;

Fig. 3 is a control system schematic diagram of the present invention;

Fig. 4 is a speed control schematic diagram of the present invention;

Fig. 5 is the embodiments of the invention schematic diagram;

Fig. 6 is the another embodiment of the present invention schematic diagram.

Shown in accompanying drawing, the present invention is a kind of electric wheel ring motor, mainly comprises formations such as shell 1, shell 2, motor field frame 3, coverboard 31, armature 5, platypelloid type commutator 52, field magnet 57, tube axle 6, bearing 61, bearing 62, bearing 32, bearing 36, bearing 15, shell block 33, battery case 9 and control cabinet 10.

Wherein, the present invention mainly is in addition stacked with the thin silicon steel sheet 56 of multilayer, and the suitable coil 51 of winding thereon is to constitute armature 5, the center of this armature 5 is embedded with and its all-in-one-piece platypelloid type commutator 52, and on the correspondence position of motor field frame 3, establish hole 531 installing two brushes 53, this two brush 53 and commutator 52 be vertical to be contacted and is communicated with power supply with lead 54.Field magnet 57 is a sealing garden annular, is looped around the periphery of armature 5.This structural design can effectively shorten the motor width, does not take up space, and with sequence circuit panel assembly (referring to Fig. 3), can effectively control and bring into play motor efficiency, needn't use planetary gear to slow down or increases torsion.

Wheel center axle of the present invention 7 two ends are located in the circular hole 81 of bicycle front-wheel foot rest 8, and lock with

C type ring

75,76 and nut 82.This central shaft 7 can not rotate, and inwardly be provided with hollow channel 71 on one side of central shaft 7, this passage 71 appropriate location in shell 1 outwards offers a perforation 72, power lead 54 can be by passing and be connected with brush 53 in the outside admission passage 71 of central shaft 7 and by perforation 72 places, this lead-in wire structure need not be installed the large scale bearing on shell 1 or shell 2, comparatively convenient economical in design and manufacturing.

In addition, also can install antirattle spring between central shaft 7 two ends and the front-wheel foot rest 8 to lower vibration, and this antirattle spring also can be installed in the bicycle rear position, has both cushioned the impulsive force that the electric wheel ring motor is suffered under steam, also can make the rider feel comparatively comfortable simultaneously.

Armature 5 is to be installed on the

holder

63, and 63 of whole holders are fixed on the tube axle 6.Platypelloid type commutator 52 is that the commutator segment unit 521 by several separation is constituted, the number of this commutator segment unit 521 is to cooperate the number of poles of armature 5 and establish, whole commutator 52 is to be flat annular, 6 one-tenth vertical and smooth being embedded at the center of armature 5 in it and tube axle become one, to reduce motor width and volume; 53 of two brushes are and tube axle 6 parallel being installed on the motor field frame 3, and brush 53 front ends system is vertical with commutator 52 and suitably contacts.

Tube axle 6 inner two ends are installed with bearing 61 and bearing 62, and this two

bearings

61,62 is to be enclosed within outside the wheel center axle 7 and free to rotate.The affixed clutch 27 in right-hand member outside of tube axle 6, this clutch 27 is also simultaneously affixed with shell 2, and this clutch is a kind of one-way clutch.And wheel 18 can be fixed together with shell 1 and shell 2 with steel wire 17 or aluminium sheet 16.

This clutch 27 can be followed closely modes such as 271 and shell 2 is fixed together with the tip, and shell 1 is respectively equipped with

ring edge

11,21 with shell 2 edges, offers

porose

12,22 respectively on each ring edge 11,21.Shell 1 and shell 2 interlockings can be integral with screw, and

shell

1,2 and be connected to fuse with wheel 18 with the steel wire 17 or the aluminium sheet 16 of wheel rim.Be provided with outside teat 14 in the centre of shell 1, affixed bearings 15 in this teat 14, this bearing 15 also are enclosed within outside the wheel center axle 7 and movable.Therefore, the armature 5 of motor is and affixed being integral such as holder 63, tube axle 6, bearing 61, bearing 62, clutch 27, shell 2, shell 1, bearing 15, steel wire 17 and wheel 18.Make the torsion of armature 5 can be communicated to wheel 18, and be enclosed within on the fixed central shaft 7 with bearing load weight and rotate with bearing 15, bearing 61 and bearing 62.

Motor field frame 3 is to be fixed together with central shaft 7 not rotate, these motor field frame 3 one sides are provided with ring edge 301, which is provided with hole 302, and also be provided with corresponding hole 311 on the coverboard 31, make the motor field frame 3 can be affixed with coverboard 31, to form an accommodation space, this accommodation space is interior for holding the usefulness of armature 5.Field magnet 57 is to be installed on the annular inner wall of motor field frame 3, is connected with a larger axis and holds 32 in the mesopore annulus 37 of coverboard 31; The center of motor field frame 3 is provided with a circular open 38, and this circular open 38 is provided with a collar flange 381, also sets firmly a larger axis and hold 36 in this collar flange 381.One circular shell block 33 combines with annular flange flange 381 places of motor field frame 3, and pass hole 34 and hole 39 with tip nail 35 both are fixed together, this shell block 33 can be with tenon piece 332 and affixed with central shaft 7, and the groove 333 that is provided with corresponding matching on central shaft 7 to be holding joggle piece 332.And bearing 32 and bearing 36 are to be nested with in tube axle 6 outsides (referring to Fig. 2), and tube axle 6 is freely rotated.

And the inner wall surface of shell 2 is provided with some vanelets 23, but rough air and have the heat radiation and the dedusting effect, also offering some through holes 112 on the appropriate location around the

shell

1,2, these through holes can be for the usefulness of ventilation and draining, and perforate 222 then is to supply the fixedly usefulness of steel wire 17.

Enough torsion can be do not provided though the present invention does not install planetary gear in housing, in the time of if necessary, planetary gear commonly used can be installed yet.

A battery case 9 can be installed in the appropriate location on the bicycle support body of the present invention, and control cabinet 10 can be installed in (referring to Fig. 5) with battery case 9, also can be installed in any appropriate location on the vehicle body respectively.Sequence circuit (WPU) is housed in control cabinet 10, infrared reflection plate A1 can be installed on the inwall of rotating shell 1, and infrared transmitter A2 is installed on the correspondence position of the motor field frame 3 that maintains static, this infrared reflection plate A1 and infrared transmitter A2 promptly constitute an infrared transmitting receiver A, this infrared transmitting receiver A is connected with cyclelog B, and this cyclelog B is connected (referring to Fig. 3) with power supply C again.Be provided with sequence circuit (WPU) in this cyclelog B, can carry out ultrared sensing meter speed, calculate the signal that is received and come the output voltage of finding speed with the control power supply, power supply C can be made of the batteries in the battery case 9.Because it all is technique known that the structure of infrared reflection plate A1, infrared transmitter A2 and sequence circuit (WPU) and circuit are formed, and does not draw concrete circuit connecting relation so only draw their block diagram in Fig. 3.

In addition, the infrared transmitting receiver A that aforesaid infrared reflection plate A1 and infrared transmitter A2 are constituted also can replace with one group of magnetic reed switch, and this magnetic reed switch also can send signal and enter in the cyclelog B to detect speed.

Referring to Fig. 4, the present invention utilizes auxiliary the trampling of manpower that cycle wheel is rotated earlier after switch activated, when wheel velocity reaches speed per hour more than 8 kilometers the time, input power supply is drive motor effectively, when vehicle wheel rotational speed is lower than 6 kilometers of speed per hours, then cuts off the electricity supply automatically.If when restarting power supply, then must go again and make wheel reach constant speed (more than 8km/H) to drop into effectively drive motor of power supply so that manpower is auxiliary.The unexpected injury that so can avoid child or user to touch power supply because of carelessness and dash forward and taken place easily, this constant speed starting and breaker device can be guaranteed safety.

Wherein, motor starting speed is located at about 8 kilometers of speed per hours, and the speed of cutting off the electricity supply is located at about 6 kilometers of speed per hours, and both are not set in speed, is will avoid motor to produce resonance and meet needs in the practicality; Otherwise if both be set in when speed, and motor can be shaken and damage easily.And speed control unit of the present invention can be installed in the bicycle controlling party to handle 85 on (referring to Fig. 5 and Fig. 6), make the investing method of power supply can be one-part form startup or stepless startup, and this handle 85 can be made into rotating manner, so that energy stepless regulation voltage and electric current are controlled the speed of electromotor velocity.

Claims

1, a kind of power-actuated electric wheel ring motor that is used for electric bicycle, mainly comprise shell, motor field frame, armature, the platypelloid type commutator, field magnet, the tube axle, bearing, shell block, formation such as control cabinet and battery case, stacked by the thin silicon steel sheet of multilayer to constitute armature, and the platypelloid type commutator is vertical with the tube axle and smooth being embedded at the armature center becomes one, with reduction motor width and volume, this armature is installed in the motor field frame, it is characterized in that, motor field frame is positioned at shell, one side of wheel center axle is provided with hollow channel, and this passage is in position outwards offered a perforation and passed through for power lead; One control cabinet is connected with motor, is provided with sequence circuit in this control cabinet, and this sequence circuit is connected with power supply and infrared transmitting receiver respectively.

2, electric wheel ring motor as claimed in claim 1 is characterized in that, shell wherein is equiped with a non-reversible clutch in a side, and this clutch also is connected with tube axle one end simultaneously.

3, electric wheel ring motor as claimed in claim 1, it is characterized in that, infrared emission receiver wherein is made up of infrared reflection plate and infrared transmitter respectively, infrared reflection plate wherein can be installed on the shell of rotation, and infrared transmitter is installed on the correspondence position of motor field frame; After switch activated, turn a wheel earlier with auxiliary the trampling of manpower, reach constant speed that ultrared sensing meter speed sets when above in wheel, drop into effectively drive motor of power supply, when vehicle wheel rotational speed is lower than setting speed when following, then cut off the electricity supply automatically.

4, electric wheel ring motor as claimed in claim 1 is characterized in that, the input system of its power supply adopts one-part form or stepless, and stepless wherein is hundle-bar to be made rotating manner control motor speed with regulation voltage and electric current.

5, electric wheel ring motor as claimed in claim 1 is characterized in that, can be provided with vanelets on the outer casing inner wall wherein, offers through hole on the appropriate location around shell.

6, electric wheel ring motor as claimed in claim 1 is characterized in that, antirattle spring also can be installed in wheel center axle two ends wherein, and the other end of this antirattle spring can be connected with the wheel foot rest.

7, electric wheel ring motor as claimed in claim 1 is characterized in that, infrared transmitting receiver wherein also can replace with magnetic reed switch.