CN2471610Y

CN2471610Y - Auxilliary power motor

Info

Publication number: CN2471610Y
Application number: CN 01212200
Authority: CN
Inventors: 李宜和
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-21
Filing date: 2001-03-21
Publication date: 2002-01-16
Anticipated expiration: 2011-03-21

Abstract

The utility model discloses an auxiliary power motor, which is characterized in that the auxiliary power motor is positioned in a holding space of an outer cover of the wheels, while a rotational speed sensor is arranged between the outer cover of the wheels and the power motor device to sense the rotational speed of the wheels. When the rotational speed of the wheels reaches the preset value, a fixed magnetic ring of the auxiliary power motor device is energized, and a rotor disk at the center of the fixed magnetic ring is rotated; at the same time, a rotating transmission shaft can be used to give an auxiliary strength to a unidirectional bearing combined at one side, thus the outer cover of the wheels is rotated correspondingly; a plurality of T-shaped tooth parts are arranged on the outer diameter surface of the rotor disk, while a magnet is positioned at the clearance between each adjacent T-shaped tooth part; when the fixed magnetic ring is energized and the rotor disk is under high-speed rotation state, the utility model avoids the separation of the rotor disk and the magnets caused by centrifugal force throwing effectively.

Description

Auxiliary driving motor

The utility model provides a kind of auxiliary driving motor, especially refer to a kind of auxiliary driving motor that is applied on the wheel, and auxiliary driving motor is brushless commutation design, the fixed-field rotor disk external peripheral surface plural magnet of being located wherein can effectively avoid plural magnet influenced by the centnifugal force whipping and a kind of auxiliary driving motor of causing being separated with rotor disk.

Environmental protection and air-pollution control are done one's utmost to advocate by society now, and make vehicle all towards taking power start as the main direction of its research, yet, known Electrical Bicycle is wayward because of having the takeoff output size, electric power can't reach shortcomings such as volume is excessive lastingly, for this reason the contriver once to propose with application number on August 15th, 94 be 94112443.6, the utility application case that name is called auxiliary driving motor solves the problems referred to above, can consult the 8th, shown in nine figure, it mainly is fixedly arranged in the motor cap by a flats and with the magnet ring of deciding that silicon steel sheet piles up and many winding coils are formed, on deciding the suitable motor angle position of magnet ring, this then is provided with three sensors of being formed by Hall unit (HALL IC) at least, use sensing and produce and to decide the brushless commutation clock signal of magnet ring, and motor cap centre junction closes on rotation shaft of wheel one end, and formed by some magnet and be the flats rotor disk on rotation shaft of wheel in motor internal junction unification outer shroud, between motor cap outside and hub cap, establish a corresponding rotating speed sensor in addition, use the control circuit that the back coupling vehicle wheel rotational speed gives programmable counting, and when arriving a certain preset rotation speed according to vehicle wheel rotational speed by control circuit, start a motor control circuit, provide three phase mains to give this stator ring, use and make this rotor disk turn, and see through a quill shaft and slow down with compound planet gear geared wheel wheel cap by rotor disk, use and constitute the auxiliary power structure; Learn, after the popular use of permanent consumption, still to have following several some shortcoming and can supply improvement though preceding case has splendid effect and smaller volume by above-mentioned:

1. its rotor disk external peripheral surface magnet is cemented with applying medium, and its rotor disk is in long-term high speed rotating and vibrations or applying medium year no stickiness and when causing peeling off, can make power motor device generation fault for a long time.

2. used circuit card is easier to produce damaged in collision for being fixed on the car body, more because of with auxiliary driving motor be released state, be not easy in the installing and make, and this kind separation type design also influences the car body outward appearance easily.

For the foregoing reasons, the contriver i.e. thinking as how preferred construction design separately, make this kind auxiliary driving motor more stabilization energy effectively be used on the electronic car body and use.

Therefore, the contriver is because above-mentioned deficiency reaches research experience for many years via assessing in many ways, and after constantly studying and revising, the side is based on preferable structure design and increase stability, and this kind auxiliary driving motor begins to design.

The utility model main purpose is for having plural T type tooth portion by the rotor disk external diameter surface, and each adjacent T type tooth portion gap can contain magnet, can make rotor disk when high speed rotating, can effectively avoid plural magnet influenced by the centnifugal force whipping and cause being separated with rotor disk.

Secondary objective of the present utility model is that control circuit board directly is contained in the shell of auxiliary driving motor device, forms a complete auxiliary driving motor module, in order to simplify package program and to promote and installed the attractive in appearance of car body appearance.

For reaching above-mentioned purpose and structure, technological means that the utility model adopts will illustrate its structure in detail so as to following preferred embodiment, in order to understanding fully.

The following effect of the utility model auxiliary driving motor tool: the rotor disk external diameter surface is for having plural T type tooth portion, and each adjacent T type tooth portion gap can contain magnet, can make rotor disk when high speed rotating, can effectively avoid plural magnet influenced by the centnifugal force whipping and cause being separated with rotor disk, increase and stablize, use reliable, safety.

It directly is contained in control circuit board in the shell of auxiliary driving motor device in addition, can form a complete auxiliary driving motor module, in order to simplify package program and to promote and installed the attractive in appearance of car body appearance.

Description of drawings:

Fig. 1 is the utility model stereo appearance figure.

Fig. 2 is the utility model three-dimensional exploded view.

Fig. 3 is the utility model side cutaway view.

Fig. 4 is the utility model rotor disk three-dimensional exploded view.

Fig. 5 is another preferred embodiment three-dimensional exploded view of the utility model rotor disk.

Fig. 6 is the another preferred embodiment three-dimensional exploded view of the utility model rotor disk.

Fig. 7 is the utility model running condition figure.

Fig. 8 is a prior art power motor three-dimensional exploded view.

Fig. 9 is for deciding magnet ring and rotor disk structural representation.

A kind of auxiliary driving motor of embodiment

See also shown in first, second, third and fourth figure, find out that by clear among the figure a kind of auxiliary driving motor of present embodiment includes auxiliary driving motor device (1), speed reduction gearing (2) and wheel enclosing cover (3) and formed; Wherein:

The accommodation space (30) of this wheel enclosing cover (3) is for containing auxiliary driving motor device (1) in it, decide magnet ring (12) for being equipped with between two shells (11) of its auxiliary driving motor device (1), rotor disk (13) and circuit card (14) are in it, be provided with plural stator (121) and decide magnet ring (12) inner radius, and whether stator (121) is sentenced signal wire (SW) (122) control and is presented and electrically conduct, and in deciding magnet ring (12), be equipped with a rotor disk (13), its rotor disk (13) outer ring surface upwards is provided with plural T type tooth portion (131), each T type tooth portion (131) gap is formed with accommodation chamber (130), be provided with a magnet (132) and all locate in the accommodation chamber (130), other is positioned at and decides to be provided with a control circuit board (14) on the left of magnet ring (12) and the rotor disk (13), and utilize transmission shaft to pass the axis hole (111) of two shells (11) in regular turn, bearing seat (17), in hollow axostyle (16) and the bearing (18), and the transmission shaft left end is promptly to be positioned behind the sheathed bearing (18) in the hole (31) of wheel enclosing cover (3), after its another right-hand member then passes a speed reduction gearing (2), be arranged with a bearing (18) again and be positioned in the unilateral bearing (32) of wheel enclosing cover (3), or directly be incorporated into wheel enclosing cover central authorities, constitute the present embodiment integral frame with this.

Being used to of being set up in the shell (11) of above-mentioned power motor device (1) the commutate control circuit board (14) of clock signal, this circuit card (14) is positioned magnet ring (12) and is convexly equipped with at least one fastening support arm (123) towards a side, and electronic component on the circuit card (14) and circuit can produce three-phase sequential direct supply, in order to the direct current pulse wave of deciding magnet ring (12) power supply to be provided, still have power crystal (142) on the circuit card (14), and dispel the heat directly for supporting to be affixed on the aluminium shell (11) in power crystal (142) surface.

Again, still the sensing element (141) that has detecting commutation clock signal on its circuit card (14), this sensing element (141) can be three Hall units (HALL IC) and constitutes, its three Hall unit is fixedly arranged on motor by corresponding position best angle setting, to use as detecting commutation clock signal.

Above-mentioned sensing element (141) also can be separates hornwork (Resolver) or decoder (Encoder) equivalence element constitutes.

Compound planet gear (21) and gear band Moving plate (22) are equipped to be constituted its speed reduction gearing (2) in order to utilize, and speed reduction gearing of the present utility model (2) is not limited in use planetary wheel (21), also can be any equivalent mechanism replacement.

Also set up two rotating speed sensors (4) between the shell (11) of its wheel enclosing cover (3) and power motor device (1), this two rotating speeds sensor (4) can utilize magnetic reed switch to constitute, when two rotating speed sensors (4) during near predeterminable range, just can detect turn-on control circuit and make a counting, with the velocity of rotation of detecting wheel enclosing cover (3) with power motor device (1).

By the transmission shaft that above-mentioned wheel shaft (15), hollow axostyle (16), bearing seat (17) and bearing (18) are formed, the fixed orifice (31) that also can not need directly to be bonded to the central unilateral bearing of wheel enclosing cover (3) (32) via speed reduction gearing (2) is located; This transmission shaft also can directly be bonded to wheel enclosing cover (3) central authorities; In addition, the visual actual needs of above-mentioned bearing (18) increases or reduces, and does not therefore limit to use location or number.

See also shown in the 5th, six figure, the side, top of the T type tooth portion (131) that above-mentioned rotor disk (13) two is adjacent be for can being the state or set up with the one positive one anti-curved plate of cambered surface of being connected, and becomes to have in order to accommodation chamber (130) and can accommodate magnet (132) and go up and use.

See also second, three, shown in seven figure, the utility model is used for detecting wheel (51) rotating speed of Electrical Bicycle (5) in actual use by the two rotating speed sensors (4) of setting up between wheel enclosing cover (3) and power motor device (1), and when wheel (51) rotating speed arrives preset value, just make magnet ring (12) energising of deciding on the auxiliary driving motor device (1) produce a magnetic field, and order decide that fixed-field that rotor disk (13) magnet (132) of magnet ring (12) central authorities produces is cut and flux change influences and be a back and forth rotation, by the transmission shaft of rotor disk (13) central authorities the unilateral bearing (32) of one side combination is bestowed an auxiliary strength again, wheel enclosing cover (3) is rotated thereupon, the utility model also can not use unilateral bearing (32), and directly be bonded to wheel enclosing cover (3) with transmission shaft, advance merely and retreat use through control circuit or switch or handle according to motor characteristics again.

The above-mentioned mode of utilizing the two rotating speed sensors (4) of setting up between wheel enclosing cover (3) and power motor device (1) to detect wheel (51) rotating speed of Electrical Bicycle (5), handle on can also Electrical Bicycle (5) is not as having the section inching switch or directly with switch activated control, but so that the size of the auxiliary strength of handle or switch free control power motor device (1).

Its plural stator (121) of deciding on magnet ring (12) inner circumferential surface also can be formed with as the T type tooth portion (131) on the rotor disk (13), and be provided with the three-phase coil winding in the T type tooth portion that decides magnet ring (12) and form, said stator (121) can also approach silicon steel sheet and pile up, and is provided with the three-phase coil winding in the edge and forms.

Again, the common multiple that its plural stator (121) of deciding magnet ring (12) inner circumferential surface is gone up magnet (132) number by rotor disk (13) add again or again a subtrahend stator (121) constituted, and make plural stator (121) be not equal to magnet (132) number, in order to tooth torque (CoggingTorque) phenomenon of eliminating auxiliary driving motor device (1).

The utility model is done a narration with Electrical Bicycle, such as wheel arrangement (as wheelchair) all can be used above-mentioned the utility model auxiliary driving motor, and the utility model can reach its effect and purpose really, so the utility model really is the invention creation of a practicality excellence.

Claims

1. auxiliary driving motor, including auxiliary driving motor device (1), speed reduction gearing (2) and wheel enclosing cover (3) forms, it mainly is installed in it for containing auxiliary driving motor in the accommodation space of wheel enclosing cover, when the circuit of the control circuit board of conducting commutation clock signal, the magnet ring of deciding of auxiliary driving motor device is switched on, and make rotor disk be a rotation, by the transmission shaft that rotates the wheel enclosing cover is rotated thereupon again; Be primarily characterized in that: this rotor disk (13) external diameter surface is for having plural T type tooth portion (131), and each adjacent T type tooth portion gap can contain magnet (132), make rotor disk when high speed rotating, can effectively avoid plural magnet influenced by the centnifugal force whipping and cause being separated with rotor disk.

2. according to the described auxiliary driving motor of claim 1, it is characterized in that: wherein the side, top of the T type tooth portion (131) that this rotor disk (13) two is adjacent is for can be the state that is connected.

3. according to the described auxiliary driving motor of claim 1, it is characterized in that: wherein the T type tooth portion (131) of this rotor disk (13) also can be the one positive one anti-curved plate of cambered surface and sets up, and is a location in order to accommodating magnet (132) between the curved plate of relative direction cambered surface.

4. according to the described auxiliary driving motor of claim 1, it is characterized in that: wherein this transmission shaft also can be further via behind the speed reduction gearing (2), again in conjunction with in the central fixed orifice (31) that is fixed to unilateral bearing (32) or directly be incorporated into wheel enclosing cover central authorities.

5. according to the described auxiliary driving motor of claim 1, it is characterized in that: wherein should decide magnet ring (12) inner circumferential surface be provided with plural stator (121), its stator is to be formed with T type tooth portion (131), and is provided with the three-phase coil winding in T type tooth portion and forms; Perhaps, this is decided magnet ring (12) inner circumferential surface and is provided with plural stator (121), and its stator can also approach silicon steel sheet and pile up, and is provided with the three-phase coil winding in the edge and forms.

6. according to the described auxiliary driving motor of claim 1, it is characterized in that: wherein be provided with the circuit card that is used in motor control usefulness in the shell of this auxiliary driving motor device, circuit on this circuit card (14) can produce the direct supply of three-phase sequential, uses in order to the direct current pulse wave power supply of deciding magnet ring (12) to be provided; Perhaps this circuit card (14) is convexly equipped with in a plurality of fastening support arms (123) towards a side by being positioned magnet ring (12); Perhaps still be provided with the sensing element (141) of detecting commutation clock signal on this circuit card (14), this sensing element (141) is constituted by three Hall units (HALL IC), and three Hall units are for being fixedly arranged on the motor best angle, to use as detecting commutation clock signal; Perhaps still have power crystal (142) on this circuit card (14), and dispel the heat directly for supporting to be affixed on the aluminium shell in power crystal (142) surface.

7. according to the described auxiliary driving motor of claim 1, it is characterized in that: wherein be provided with rotating speed sensor (4) between this wheel enclosing cover and power motor group device and detect the wheel rotor speed, and in the wheel rotor speed to preset value or through the switch conduction control circuit board; Perhaps this rotating speed sensor (4) is constituted by utilizing double-type magnetic reed switch group.

8. according to the described auxiliary driving motor of claim 1, it is characterized in that: wherein this speed reduction gearing (2) can be planetary wheel (21) and gear band Moving plate (22) constitutes.

9. according to the described auxiliary driving motor of claim 6, it is characterized in that: described sensing element can be to be separated hornwork (Resolver) and constitutes; Perhaps this sensing element also can be decoder (Encoder) and constitutes.