CN207785382U - A kind of electric wheelchair of list brushless motor control - Google Patents
A kind of electric wheelchair of list brushless motor control Download PDFInfo
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- CN207785382U CN207785382U CN201720768369.6U CN201720768369U CN207785382U CN 207785382 U CN207785382 U CN 207785382U CN 201720768369 U CN201720768369 U CN 201720768369U CN 207785382 U CN207785382 U CN 207785382U
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Abstract
A kind of electric wheelchair of single brushless motor control disclosed by the utility model, including：Chair frame；A pair of of deflecting roller in the bottom of chair frame and a pair of of power wheel are set；A pair of of the driving mechanism for being used to that a pair of of power wheel to be driven to rotate being arranged in chair frame and the accumulating mechanism being connect with a pair of of driving mechanism and the control crank being connect with accumulating mechanism；Each driving mechanism includes casing；A brushless motor being arranged on the lateral surface of casing, the output shaft of brushless motor extend in casing；Be arranged in casing and with the train of reduction gears of the output axis connection of brushless motor；And power wheel shaft, one end of power wheel shaft, which is located in casing and is driven by train of reduction gears, to be rotated, and the other end connects after passing through casing as the power wheel of output end and electric wheelchair.The beneficial effects of the utility model are：Each power wheel of electric wheelchair is driven by a brushless motor by train of reduction gears jointly so that structure is simpler, correspondingly alleviates the weight of electric wheelchair.
Description
Technical field
The utility model is related to electric wheelchair technical field more particularly to a kind of electric wheelchairs of single brushless motor control.
Background technology
Wheelchair is lower limb physical disabilities and the indispensable walking-replacing tool of old and frail people.Most of wheelchairs are by multiplying
Member's both hands drive trailing wheel to travel, and also have direct current motor driven electric wheelchair or electric wheel-chair vehicle.Electric wheel-chair vehicle is one
Kind is using accumulator as the energy, the power wheel Wheel-chair of electronic device control driving.User can pass through control device voluntarily driving wheel
Wheel-chair is advanced.
Each power wheel in existing electric wheelchair has a motor to be driven by reduction gear, however is used for
Drive the load pressure of the coil of motor of power wheel, carbon brush and gear big, service life is short, and existing dynamic for driving
The volume of the motor of wheels is larger, causes electric wheelchair very heavy.
Brshless DC motor is made of motor body and driver, is a kind of typical electromechanical integrated product.Due to
Brushless direct current motor is run with autocontrol, so will not turn as the synchronous motor of heavy load starting under frequency control
Another plus startup winding, will not generate oscillation and step-out in load sudden change on son.The brushless direct current motor of Small And Medium Capacity
Permanent magnet mostly uses rare-earth Nd-Fe-B (Nd-Fe-B) material of high energy product now.Therefore, rare earth permanent magnetic brushless motor
Volume ratio reduces a seat No. with capacity threephase asynchronous.
Brushless motor has the following advantages that compared with brush motor：
1, brushless, low interference
Brushless motor eliminates brush, and most directly variation is exactly the electric spark generated when being operated without brush motor,
Thus greatly reduce interference of the electric spark to remote-control radio electric equipment.
2, low noise, smooth movements
Brushless motor is without brush, and frictional force greatly reduces when operating, and operation is smooth, and noise can be much lower, this is excellent
Point is a huge support for model running stability.
3, long lifespan, low-maintenance cost
Brush is lacked, the abrasion of brushless motor is mainly on bearing, and from a mechanical point of view, brushless motor is almost one
The non-maintaining motor of kind when necessary, need to only do some dedustings maintenance.
For this purpose, applicant carried out beneficial exploration and trial, single brushless motor is applied on electric wheelchair, below
The technical solution that will be introduced generates in this background.
Utility model content
The technical problem to be solved by the utility model is to：In order to overcome electrical-coil, the carbon of existing electric wheelchair
The load pressure of brush and gear is big, and service life is short, the bulky defect of motor, now provides a kind of the electronic of single brushless motor control
Wheelchair so that electric wheelchair weight reduces, lighter.
Following technical scheme can be used to realize in technical problem to be solved in the utility model：
A kind of electric wheelchair of list brushless motor control, including：
One chair frame；
It is arranged in the bottom of the chair frame and a pair of of deflecting roller on front side of the chair frame；
It is arranged in the bottom of the chair frame and a pair of of power wheel on rear side of the chair frame；
A pair of of the driving mechanism for driving the pair of power wheel rotation being arranged in the chair frame；
One accumulating mechanism for being arranged in the chair frame and being connect with the pair of driving mechanism；And
One control crank for being arranged in the chair frame and being connect with the accumulating mechanism；It is characterized in that,
Each driving mechanism, including：
One casing；
The output shaft of a brushless motor being arranged on the lateral surface of the casing, the brushless motor passes through the machine
Shell extends in the casing；
Be arranged in the casing and with the train of reduction gears of the output axis connection of the brushless motor；And
One end of one power wheel shaft, the power wheel shaft is located in the casing and is turned by train of reduction gears driving
Dynamic, the other end connects after passing through the casing as the power wheel of output end and electric wheelchair.
In a preferred embodiment of the utility model, the train of reduction gears include the first single layer gear, first pair
Layer gear, the second double-layer gear, third double-layer gear and the second single layer gear, the first single layer gear are fixedly set in institute
The output shaft for stating brushless motor extends on the part in the casing, first double-layer gear, the second double-layer gear, third
Double-layered tooth wheel shaft is located in the casing, first double-layer gear, the second double-layer gear upper layer external tooth diameter be less than its
The diameter of lower layer's external tooth, tooth diameter is more than the diameter of its lower layer's external tooth outside the upper layer of the third double-layer gear, and described first, the
Lower layer's external tooth of two double-layer gears is engaged with the first single layer gear respectively, and the upper layer external tooth of the third double-layer gear is simultaneously
With tooth engagement outside the upper layer external tooth of first double-layer gear, the upper layer of the second double-layer gear, under the third double-layer gear
Layer external tooth is engaged with the second single layer gear；The second single layer gear is fixed on the power wheel axle position in the casing
One end, drive the power wheel shaft rotation dynamic.
In a preferred embodiment of the utility model, the accumulating mechanism includes an electricity being arranged in the chair frame
Pond box and the battery being arranged in the battery case, the control crank have one drive circuit, the driving circuit installation
In the battery case.
As a result of technical solution as above, the beneficial effects of the utility model are：Each power of electric wheelchair
Wheel is driven by a brushless motor by train of reduction gears jointly so that structure is simpler, correspondingly alleviates electric wheelchair
Weight.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the electric wheelchair of the utility model.
Fig. 2 is the appearance diagram of the electric wheelchair driving mechanism of the utility model.
Fig. 3 is the electric wheelchair driving mechanism decomposed schematic diagram of the utility model.
Specific implementation mode
In order to make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to Fig. 1, what is provided in figure is a kind of light electric wheeled chair, including chair frame 100, a pair of of deflecting roller 200, Yi Duidong
Wheels 300, a pair of of driving mechanism 400, accumulating mechanism 500 and control crank 600.
A pair of of deflecting roller 200 is arranged in the bottom of chair frame 100 and positioned at the front side of chair frame 100.A pair of of power wheel 300 is arranged
In the bottom of chair frame 100 and positioned at the rear side of chair frame 100.A pair of of driving mechanism 400 be arranged in chair frame 100 and with a pair of of power
Wheel 300 is drivingly connected, for driving a pair of of power wheel 300 to rotate.Accumulating mechanism 500 is arranged in chair frame 100 and is located at chair frame
100 side is convenient for the folding operation of chair frame 100, accumulating mechanism 500 to be electrically connected, be used for a pair with a pair of of driving motor 400
Driving motor 400 provides electric energy.Specifically, accumulating mechanism 500 includes a battery case 510 being arranged in chair frame 100 and sets
Set the battery (not shown) being electrically connected in battery case 510 and with a pair of of driving motor 400.The setting of control crank 600 exists
It in chair frame 100, and is connect with accumulating mechanism 500 by one drive circuit (not shown), which is mounted on electricity
In pond box 510.
Referring to Fig. 2 and Fig. 3, driving mechanism 400 includes casing 410, brushless motor 420, train of reduction gears and power wheel
Axis 440.
Casing 410 is made of shell 411 and the upper shell cover being removably mounted on shell 411 412.Driving motor
420 are fixed on the lateral surface of casing 410, and the output shaft 421 of driving motor 420 is extended to across casing 410 in casing 410.
Train of reduction gears includes single layer gear 431,435, double-layer gear 432,433,434, and single layer gear is fixedly set in
The output shaft 421 of brushless motor 420 extends on the part in casing 410, and axis is located at machine to double-layer gear 432,433,434 respectively
On axis 432a, 433a, 434a in shell 410, the diameter of upper layer external tooth 432b, 433b of double-layer gear 432,433 are less than under it
The diameter of layer external tooth 432c, 433c, the upper layer external tooth 434b diameters of double-layer gear 434 are more than the diameter of its lower layer external tooth 434c,
Lower layer external tooth 432c, 433c of double-layer gear 432,433 are engaged with single layer gear 431 respectively, the upper layer external tooth of double-layer gear 434
434b is engaged with upper layer external tooth 432b, 433b of the double-layer gear 432,433 simultaneously, lower layer's external tooth of double-layer gear 434
434c is engaged with single layer gear 435；435 single layer gears are fixed on one end that power wheel shaft 440 is located in casing 110, and driving is dynamic
Wheels axis 440 rotates.
The beneficial effects of the utility model are：The power wheel 300 of electric wheelchair passes through deceleration by a brushless motor 420
Gear set 430 drives so that structure is simpler, correspondingly alleviates the weight of electric wheelchair.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (3)
1. a kind of electric wheelchair of list brushless motor control, including：
One chair frame；
It is arranged in the bottom of the chair frame and a pair of of deflecting roller on front side of the chair frame；
It is arranged in the bottom of the chair frame and a pair of of power wheel on rear side of the chair frame；
A pair of of the driving mechanism for driving the pair of power wheel rotation being arranged in the chair frame；
One accumulating mechanism for being arranged in the chair frame and being connect with the pair of driving mechanism；And
One control crank for being arranged in the chair frame and being connect with the accumulating mechanism；It is characterized in that,
Each driving mechanism, including：
One casing；
The output shaft of a brushless motor being arranged on the lateral surface of the casing, the brushless motor prolongs across the casing
It extends in the casing；
Be arranged in the casing and with the train of reduction gears of the output axis connection of the brushless motor；And
One power wheel shaft, one end of the power wheel shaft, which is located in the casing and is driven by the train of reduction gears, to be rotated,
The other end connects after passing through the casing as the power wheel of output end and electric wheelchair.
2. a kind of electric wheelchair of single brushless motor control as described in claim 1, which is characterized in that the train of reduction gears
It is described including the first single layer gear, the first double-layer gear, the second double-layer gear, third double-layer gear and the second single layer gear
The output shaft that first single layer gear is fixedly set in the brushless motor extends on the part in the casing, described first pair
Layer gear, the second double-layer gear, third double-layered tooth wheel shaft are located in the casing, first double-layer gear, the second double-layered tooth
The diameter of the upper layer external tooth of wheel is less than the diameter of its lower layer's external tooth, and tooth diameter is more than under it outside the upper layer of the third double-layer gear
The diameter of layer external tooth, lower layer's external tooth of first, second double-layer gear engages with the first single layer gear respectively, and described the
The upper layer external tooth of three double-layer gears is nibbled with the upper layer external tooth of first double-layer gear, the upper layer external tooth of the second double-layer gear simultaneously
It closes, lower layer's external tooth of the third double-layer gear is engaged with the second single layer gear；The second single layer gear is fixed on institute
Power wheel axle position is stated in one end in the casing, drives the power wheel shaft rotation dynamic.
3. a kind of electric wheelchair of single brushless motor control as described in claim 1, which is characterized in that the accumulating mechanism packet
The battery case and the battery being arranged in the battery case that one is arranged in the chair frame are included, the control crank has one to drive
Dynamic circuit, the driving circuit are mounted in the battery case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720768369.6U CN207785382U (en) | 2017-06-27 | 2017-06-27 | A kind of electric wheelchair of list brushless motor control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720768369.6U CN207785382U (en) | 2017-06-27 | 2017-06-27 | A kind of electric wheelchair of list brushless motor control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207785382U true CN207785382U (en) | 2018-08-31 |
Family
ID=63275190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720768369.6U Active CN207785382U (en) | 2017-06-27 | 2017-06-27 | A kind of electric wheelchair of list brushless motor control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207785382U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109758311A (en) * | 2019-03-05 | 2019-05-17 | 佛山达浩医疗科技有限公司 | A kind of wheel-chair |
| TWI673045B (en) * | 2018-10-17 | 2019-10-01 | 財團法人工業技術研究院 | Electric wheelchair control system and electric wheelchair control method |
-
2017
- 2017-06-27 CN CN201720768369.6U patent/CN207785382U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI673045B (en) * | 2018-10-17 | 2019-10-01 | 財團法人工業技術研究院 | Electric wheelchair control system and electric wheelchair control method |
| US11123244B2 (en) | 2018-10-17 | 2021-09-21 | Industrial Technology Research Institute | Electric wheelchair control system and electric wheelchair control method |
| CN109758311A (en) * | 2019-03-05 | 2019-05-17 | 佛山达浩医疗科技有限公司 | A kind of wheel-chair |
| CN109758311B (en) * | 2019-03-05 | 2024-04-16 | 佛山达浩医疗科技有限公司 | Wheelchair vehicle |
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