CN2214920Y

CN2214920Y - Friction drive booster cycle with printed wound dc motor

Info

Publication number: CN2214920Y
Application number: CN94221352U
Authority: CN
Inventors: 黄其明; 李孝琛; 刘直毅
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-09-15
Filing date: 1994-09-15
Publication date: 1995-12-13
Anticipated expiration: 2004-09-15

Abstract

The utility model relates to a friction drive booster bicycle with a printed windings direct current motor, which solves the problems of large workload, high cost, big volume and bad function caused by changing the existing finished bicycles into the electrical bicycles. The utility model is characterized in that a friction wheel tightly fitting a rear tyre is directly connected to the output shaft of the motor; a special housing is arranged inside with a storage battery, a charger, etc. The power source of the motor and the speed can be controlled through the contact switch of a chain wheel, the corresponding protection device and the line connection. The utility model, a power boosting vehicle means of communication, has the advantages of low cost, few power expenditure, labour saving, better function and convenient installation, while not changing the original structure and the pedal function of the bicycle.

Description

Friction drive booster cycle with printed wound dc motor

The utility model relates to a kind of Electrical Bicycle, particularly a kind of electric assisted bicycle that adopts the transmission of printed circuit DC motor direct friction wheel.

Electrical Bicycle of the prior art is of all kinds, as " direct drive Electrical Bicycle ", " the energy-saving Electrical Bicycle " put down in writing in the Chinese patent literature, " bicycle additional electrical actuating device ", " electronic assistive drive ", " Electrical Bicycle " or the like.Their purpose all is to provide a kind of with the easy vehicle of electric energy as propulsion source for people.Its structure differs from one another, but all weak point is arranged, and bigger as changing work capacity, cost is higher, and technology is comparatively complicated, and function is but not good, and many Electrical Bicycles do not come out this point just has been described.

The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and provide a kind of reliable transmission, need not speed reduction gearing, the transmission gear for electric motor volume is little, in light weight, little power consumption, cost are low, does not change printed circuit DC motor (hereinafter to be referred as printed motor) the frictional transmission morpet of the structure and the foot-operated function of former finished product bicycle.

Technical solution of the present utility model is: based on the bicycle of the vertical front and rear of two wheels in the prior art, go up direct connection friction wheel (9) at the output shaft (14) of printed motor (13), by adapter plate (8); Pivot shaft (11), (12) fixed card (7) are fixed on friction gear (1) on back fork of bicycle or the shelf, friction wheel (9) can and rear tyre (10) between be close to, whole transmission device (1) can be rotated along fixed axis, friction wheel (9) can move along the transmission axis direction, strain with spring (3) the driving device lower end, make friction wheel (9) and rear tyre (10) that certain pressure be arranged, reach normal engaged and keep certain friction force.Storage battery, charger are placed in the purpose made casing (4); be connected with circuit by sprocket wheel contact switch (2) and corresponding protection device; control motor power and speed; the closed motor of sprocket wheel contact switch (2) (13) starts when exerting oneself bicycle slightly; thereby be implemented under the prerequisite that does not change bicycle original design and foot-operated kinetic energy, reach the electric boosted purpose of the utility model.

The utility model has following advantage compared to existing technology:

1, do not need other acceleration and deceleration device, do not change original structure of bicycle and foot-operated function;

2, noise is low, and is pollution-free, and little power consumption is laborsaving, simple installation;

3, volume is little, and is in light weight, and cost is low, better function.

The drawing of accompanying drawing is described as follows:

Fig. 1, Fig. 3 are integral structure scheme drawing of the present utility model, and wherein 1 is driving device; 2 is the sprocket wheel contact switch; 3 is spring; 4 is the storage battery casing; 5 is starting switch; 6 is guard shield.

Fig. 2 is the schematic top plan view of the utility model printed motor driving device, and wherein 7 is fixed card; 8 is adapter plate; 9 is friction wheel; 10 is rear tyre, and 11.12 is pivot shaft; 13 is printed motor, and 14 is the printed motor output shaft; Fig. 4 is the utility model sprocket wheel contact switch structure scheme drawing, and wherein (15) are sprocket wheel; (16) be reed contact; (17) be spring; (18) be geometrical clamp; (19) be anchor shaft; (20) be movable arm.

The utility model is described in further detail below in conjunction with accompanying drawing and embodiment:

Bicycle with the vertical front and rear of two wheels in the prior art serves as that direct connection friction wheel (9) is gone up at the output shaft (14) of printed motor (13) in the basis, by pivot shaft (11.12), adapter plate (8), fixed card (7) driving device (1) is fixed on back fork of bicycle or the shelf, one end of spring (3) is connected on the pivot shaft (12), and its other end is connected on the vehicle frame.With driving device (1) tension, make the certain pressure of maintenance between friction wheel (9) and the rear tyre (10).With a special casing (4) storage battery, charger are tightly locked in the spider.Battery feed one end connects the power lead of printed motor (13), and the other end in parallel monitors that sprocket wheel contact switch (2) and overcurrent protector are connected with the other end of motor (13) with volt meter and tandem promoter switch (5).Sprocket wheel contact switch (2) is installed on the back vent, and sprocket wheel (15) is pressed in (as shown in Figure 4) on the chain.Make the chain tension or loosen by foot-operated, control contact switch (2) thus the control motor rotates and stops to reach artificial adjustment bicycle running speed or stop operating.Need not to move starting switch (5) with hand when electronic, allow printed motor (13) outage get final product.

The utility model is the power-assisted running vehicle of a kind of electricity.

Claims

1; a kind of printed circuit DC motor frictional transmission morpet; bicycle based on the vertical front and rear of two wheels in the prior art; it is characterized in that; on the output shaft 14 of printed motor 13; direct connection friction wheel 9; by pivot shaft 11; 12; adapter plate 8; fixed card 7 is fixed on driving device 1 on back fork of bicycle or the shelf; friction wheel 9 can be close to rear tyre 10; one end of spring 3 is connected on the pivot shaft 12; its other end is connected on the vehicle frame; in the spider with a special casing 4 with storage battery; the tight rope of charger; the power lead of one termination printed motor 13 of battery feed, the other end in parallel monitor that sprocket wheel contact switch 2 and overcurrent protector are connected with the other end of motor 13 with volt meter and tandem promoter switch 5; sprocket wheel contact switch 2 is installed on the back vent, and sprocket wheel 15 is pressed on the chain.