CN2211955Y

CN2211955Y - Electronic bicycle speed changing controller

Info

Publication number: CN2211955Y
Application number: CN 94245890
Authority: CN
Inventors: 徐义雄
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-20
Filing date: 1994-12-20
Publication date: 1995-11-08
Anticipated expiration: 2004-12-20

Abstract

The utility model relates to an electronic speed changing controller for bicycles. The utility model comprises two key sets, two transmission sets and a control circuit, wherein, each transmission set is composed of a motor, a gear set and a sensing element, the shaft center of the motor is provided with a gear, the motor and the gear set can form a mesh type transmission, the gear set is formed by that two shafts are separately arranged between two fixed plates and a screw rod is pivot arranged between the two fixed plates, the sensing element comprises a set of grating wheels fixed at the ends of the screw rod and an optical coupler, and the control circuit is composed of a microprocessor, a motor driving circuit, a voltage stabilizing circuit and a power supply detection circuit. The utility model has the advantages that the operation is accurate and sensitive, the utility model is more labor-saving and convenient than the existing products, and the utility model can be used without the influence of the weather factor.

Description

Electronic bicycle speed changing controller

The utility model relates to a kind of bicycle shift control device of electronic type.

The bicycle of racing car type in the past all is equipped with change-speed box, main with being intended to help the player to adapt to different road conditions, as make it unlikely too painstaking when going up a slope, and road conditions also unlikely excessive hurricane when smooth, the bicycle of the non-match type of part also has been equipped with change-speed box at present, when common people are driven, also can experience its advantage place.Present existing change-speed box, its operation are gone up the mechanical types that adopt more, as set up the control spanner separately on its handle-bar, when needing speed change between bicycle is advanced, promptly pull this spanner, and to carry out the speed change adjustment, there is following point at least in this mode:

1. operation is comparatively required great effort: the operation system of traditional change-speed box adopts mechanical type, it mainly is to utilize the spanner on the handle-bar to spur change-speed box via backguy, to produce gear shifting operation, directly draw the mechanical type action of pulling owing to adopt, so in operation, will comparatively require great effort undoubtedly.

2. cause direction unbalance easily when operating: because the spanner of operation transmission system is located on the handle-bar, and between bicycle advances, because knight's both hands must be helped on handle-bar simultaneously, when its desire is done the speed change adjustment, promptly must make departure direction handle on the other hand, remove to pull the control spanner, this moment, handle-bar was promptly only to be hold by one hand, and the as easy as rolling off a log balance phenomenon that between advancing, takes place, particularly under bicycle is in fast state, take place especially easily, this shows the anxiety of the also influential traffic safety of this power operation mode.

The purpose of this utility model be to provide a kind of easy laborsaving, do not worry jeopardizing the electronic type bicycle shift control device of traffic safety.

The utility model is to realize like this, this product includes two key groups, two transmission groups and a control circuit, and wherein, transmission group mainly is made up of a motor, a gear cluster and a sensing element, the axle center of motor is provided with a gear, can constitute engaged transmission with gear cluster; Gear cluster lies in and is arranged with two axostylus axostyles between two adapter plates and is pivoted with a screw rod, is respectively equipped with two groups of double-layer gears on two axostylus axostyles, is to be meshing with each other between each double-layer gear, and wherein be positioned at one of outside double-layer gear and with the gear mesh of motor; Again, screw rod one end is provided with a gear, this train of gears be positioned at one of gear cluster inboard double-layer gear engagement, screw rod holds swivel nut then that the stay rod of one Jiong shape is arranged in addition, stay rod one end then is provided with the brake control line of Front Derailleur or Rear Derailleur, screw rod one end is that pivot is through at outside the adapter plate again, for the assembling sensing element; Sensing element includes a grating wheel and the optic coupler that a cover is fixed in the screw rod end, and both are connected to respectively on the control circuit, and wherein the grating wheel wheel face forms most light tanks with the equal angles laying with the radiant rays direction, and optic coupler is located at the grating wheel side.Control circuit is made up of microprocessor, motor drive circuit, mu balanced circuit and power sensor detecting circuit, wherein, be respectively equipped with telltale, memory, drive circuit of indicator and caution sound driving circuit on the microprocessor, and via the motor line on motor drive circuit and the transmission group, the running of control transmission group.

Below in conjunction with drawings and Examples the utility model is described in detail.

Fig. 1 is the diagram of block of the utility model.

Fig. 2 is the combination scheme drawing of the utility model key groups.

Fig. 3 is the utility model transmission group plan sketch.

Fig. 4 is the control circuit figure of the utility model.

Fig. 5 is the assembling scheme drawing of the utility model.

The structure division of the utility model, please at first consult shown in Figure 1, mainly include two key groups (1), two transmission groups (2) and a control circuit (3), wherein two key groups (1) be located at respectively bicycle directional handle (35) two ends near grip part place ［ as shown in Figure 2 ］, so that both hands pressing operation nearby.

Consulting shown in Figure 3ly, is the plan sketch of this transmission group (2), and it mainly includes a motor (4), a gear cluster (5) and a sensing element (6), and the axle center of motor (4) is provided with a gear (7), can constitute engaged transmission with gear cluster (5); Gear cluster (5) lies in and is arranged with two axostylus axostyles (9) (10) between two adapter plates (8) and is pivoted with a screw rod (11), be respectively equipped with two groups of double-layer gears (12) (13) on two axostylus axostyles (9) (10), between each double-layer gear (12) (13) is to be meshing with each other, and wherein be positioned at one of outside double-layer gear (12) and with the engagement of the gear (7) of motor (4), and by the transmission of this motor (4) institute; Again, screw rod (11) one ends are provided with a gear (14), this gear (14) is and is positioned at double-layer gear (13) engagement of one of gear cluster (5) inboard, screw rod (11) holds swivel nut then that the stay rod (15) of one Jiong shape is arranged in addition, stay rod (15) one ends then are provided with the brake control line of Front Derailleur or Rear Derailleur, screw rod (11) one ends are that pivot is through at outside the adapter plate (8) again, for assembling sensing element (6).

Sensing element (6) is the photoinduction formula, and its purposes is the transmission stroke of detecting transmission group (2), and detection signal is delivered to control circuit (3), whether reach in the location with the affirmation gear shifting operation, and then the break-make of control motor (4).Sensing element (6) includes a grating wheel (16) and the optic coupler (17) that a cover is fixed in screw rod (11) end, this the two be connected to respectively on the control circuit (3), wherein grating wheel (16) wheel face forms most light tanks (18) with the equal angles laying with the radiant rays direction, optic coupler (17) is to be located at grating wheel (16) side again, the side two ends were respectively light source and photoelectric switch within it was relative, when grating wheel (16) rotates, to cooperate the light tank (18) on it, the light source of optic coupler (17) one ends is intermittently accepted by photoelectric switch, calculate the frequency that photoelectric switch is accepted light source signal and see through, can detect the transmission stroke of transmission group (2).

When motor (4) turns round, respectively organize double-layer gear (12) (13) and screw rod (11) with what this transmission group of transmission in regular turn (2) was gone up, and screw rod (11) is when rotating, stay rod (15) will be moved to the left or to the right,, carry out the speed change adjustment with pulling brake control line, at the same time, whether the grating wheel (16) of sensing element (6) also rotates thereupon, and optic coupler (17) then can be delivered to detection signal control circuit (3), shut down with decision motor (4).

The line construction of control circuit (3), see also shown in Figure 4, it is made up of a microprocessor (19), a motor drive circuit (20), a mu balanced circuit (21), a power sensor detecting circuit (22), and wherein the syntagmatic between microprocessor (19) and peripheral circuit thereof and each circuit is detailed as following:

The sensing element (6) that its

input pin

25,26 is gone up through a joint (29) and two transmission groups (2) is connected, to receive the signal of sensing element (6) detecting;

Its input pin 12～14 is connected with two key groups (1) through two joints (30) (31) respectively;

Its input pin 5～8 is provided with a memory (24), to store the set data that uses preceding input, when transmission group (2) when being driven once again, microprocessor (19) can be retrieved last the storing data of memory (24), contrast in order to detection signal with sensing element (6), brake control line to certain distance, to finish the speed change adjustment with pulling.

Its

output connecting pin

27,28 and 11 is connected with drive circuit of indicator (25) (26) and caution sound driving circuit (27) respectively, in order to do various circuit reaction indications.

Its output connecting pin 32～39 is provided with a telltale (23), can show the speed change hop count;

Its input pin 16 is to be connected to power sensor detecting circuit (22), the power condition of the main system of this power sensor detecting circuit (22) detecting battery, it can provide the message of microprocessor (19) power shortage, microprocessor (19) then can see through drive circuit of indicator (25) (26) and light indicator lamp, changes battery to notify the user.

Its output connecting pin 1～4 is to be connected to motor drive circuit (20), this motor drive circuit (20) has two groups of variable speed control ends up and down respectively, for the speed change section of selecting forward and backward change-speed box respectively, its output then is connected through the motor (4) that joint (28) and two transmission groups (2) are gone up again, to control its running.

Its test pin 17 is provided with a test splice (32), and after start, whether the function that can see through this test splice (32) detecting device is normal.

Mu balanced circuit (21) is the working power of protection control circuit (3), when motor (4) turns round, causes electricity exception to prevent it.

Can find out concrete line construction and indivedual functions thereof of control circuit (3) through above stated specification, as for its performance that cooperates with transmission group (2) and key groups (1), detailed as described below:

Because the specification of manufacturing change-speed box has difference mutually, before time using at the beginning of after installation, must be through a setting program, to cooperate the specification of this change-speed box, its setting program is roughly as follows:

Two buttons of going up by next key groups (1) (UP and DOWN) bled off after two seconds simultaneously, thereafter separately by next button (UP), control circuit this moment (3) slowly moves forward CD-ROM drive motor (4) pulling stay rod (15), wait when arriving every section location, after pressing two buttons simultaneously again, can finish the travel settings of this correspondence change-speed box piecemeal, and this set data will be stored in memory (24) via microprocessor (19), the data contrast when afterwards operating.

After finishing, setting can use, between advancing, when the knight adjusts as desiring to carry out speed change, only must be nearby with the button of the corresponding key groups of thumb press (1), can see through control circuit (3) and drive the adjustment of transmission group (2) execution speed change, at this moment, because hand still stays on the handle-bar, so unexpectedly cause unbalance situation during operation; Push button again behind the button of group (1), this stay rod (15) will be via the transmission of motor (4) and gear cluster (5), it is mobile to make corresponding direction, and draw the stay rod of pulling (15) to carry out the speed change adjustment, when stay rod (15) moves, screw rod (11) also rotates with the grating wheel (16) of seasonal sensing element (6), and detect its rotational travel simultaneously by optic coupler (17), and pass control circuit (3) back, data by microprocessor on it (19) retrieval memory (24) compares, and as after verifying, promptly stops to export to the driving signal of motor drive circuit (20), satisfy motor (4) and promptly shut down, and finish the speed change adjustment; Again behind the button of group (1) that pushes button, as surpassing certain hour, stay rod (15) does not reach yet when the location, then shows the adjusting mechanism et out of order of change-speed box, microprocessor this moment (19) will send caution sound through caution sound driving circuit (27), inspect to inform that the knight is stopped.

And for making each double speed control action be tending towards accurate, this transmission group (2) can cooperate control circuit (3) to produce a buffer action and automatic correcting function, wherein buffer action lies in when motor (4) running is extremely approaching finishes revolution, to make motor (4) slow down operating speed through microprocessor (19) and motor drive circuit (20), in order to do making stay rod (15) can stably make change-speed box change gear, suppose that motor (4) must enclose in running ten, beginning can be finished the switching of a speed change gear, then seven, during eight circles, microprocessor (19) can see through motor drive circuit (20) slows down motor (4), make it turn round to ten circles, and stably finish the conversion of gear with slower speed.

Another automatic correcting function again, be that then running surpasses pre-fixing turn as motor (4), beginning is when finishing gear shifting operation, expression motor (4) number of turns is error to some extent, microprocessor this moment (19) still can cooperate motor drive circuit (20) when speed change switching next time, the number of turns of the just many commentaries on classics of button covering, and more attain correctly the position that makes its switching, suppose still that herein motor (4) is behind running ten circles, can finish a speed change change action, as it after a certain gear shifting operation is finished, motor (4) 12 circles that turned round, in other words, motor (4) changes two circles, and this message, microprocessor (19) can see through sensing element (6) and detect, and when next speed change switching controls action produces, microprocessor (19) returns bales catch to much more original two circles that change, that is when change action next time, motor (4) eight circles that only turn round, this not only can make change-speed box switch to next gear, and its switching position is returned to normally.

Consult shown in Figure 5, transmission group (2) is on the inclined tube (34) that is fixed in vehicle frame (33), this assembling form has the effect of waterproof, can be packaged in the airtight housing by this transmission group (2), only this stay rod (15) must stretch out outside the housing and be connected with change-speed box, thereby certainly will produce the gap between junction pole (15) and housing, and on the inclined tube (34) of transmission group (2) through being assembled in vehicle frame (33), system is the declivity shape, so when the rainy day, rainwater will flow down along this gradient, unlikelyly infiltrate by the space between stay rod (15) and housing, destroyed by rainwater thereby the element of transmission group (2) inside is unexpected, and obtained the effect of a waterproof.

The utlity model has following advantages:

1. the electronic switch control action is accurately sensitive, compared to the mechanical system of tradition, with more laborsaving facility.

2. utilize key groups to be located at vicinity gripping place of handle-bar, can control with thumb nearby, and can avoid leaving the balance phenomenon that handle causes because of hand.

3. when the speed change change action, can produce a buffer action and automatic correcting function, and each switching controls action is more attained accurately.

4. utilize the assembling form that is installed on the vehicle frame inclined tube, can obtain a waterproof action, make it use and be not subjected to inside even from weather.

Claims

1, a kind of electronic type bicycle shift control device is characterized in that:

A. it includes two key groups, two transmission groups and a control circuit;

B. transmission group mainly is made up of a motor, a gear cluster and a sensing element, and the axle center of motor is provided with a gear, can constitute engaged transmission with gear cluster; Gear cluster lies in and is arranged with two axostylus axostyles between two adapter plates and is pivoted with a screw rod, is respectively equipped with two groups of double-layer gears on two axostylus axostyles, is to be meshing with each other between each double-layer gear, and wherein be positioned at one of outside bidentate wheel and with the gear mesh of motor; Again, screw rod one end is provided with a gear, this train of gears be positioned at one of gear cluster inboard double-layer gear engagement, screw rod holds swivel nut then that the stay rod of one Jiong shape is arranged in addition, stay rod one end then is provided with the brake control line of Front Derailleur or Rear Derailleur, screw rod one end is that pivot is through at outside the adapter plate again, for the assembling sensing element; Sensing element includes a grating wheel and the optic coupler that a cover is fixed in the screw rod end, and both are connected to respectively on the control circuit, and wherein the grating wheel wheel face forms most light tanks with the equal angles laying with the radiant rays direction, and optic coupler is located at the grating wheel side;

C. control circuit is detectd lateral circuit by microprocessor, motor drive circuit, mu balanced circuit and power supply and is formed, wherein, be respectively equipped with telltale, memory, drive circuit of indicator and caution sound driving circuit on the microprocessor, and via the motor line on motor drive circuit and the transmission group, the running of control transmission group.

2, electronic type bicycle shift control device according to claim 1 is characterized in that key groups is located at the two ends place of bicycle directional handle.

3, electronic type bicycle shift control device according to claim 1 is characterized in that transmission group is located on the inclined tube of cycle frame.