CN205989793U - Axis with electric bicycle running status discrimination function is stopped apparatus for transmitting signal - Google Patents

Abstract

The apparatus for transmitting signal the utility model discloses a kind of axis with electric bicycle running status discrimination function is stopped, its core design is to install double magnet rings on the driver plate as deflecting member of stopping and middle shaft gear, and two phase place sensing Halls being respectively induced double magnet rings are set, guarantee that controller can differentiate the running status of motor by obtaining the phase signal of two phase places sensing Hall outputs, for example it is in forward travel state, or free state, still stop state, and send suitable instruction to meet deceleration and the parking demand in the case of non-stopping to motor accordingly, prevent electric bicycle driving.It also increased dynamic clamping head and quiet clamping head between driver plate and middle shaft gear, by adjust elastic force can change in a flash pedal power, giving people's foot and suitably brake feedback force, thus eliminating " sky is pedaled ", or not pedaling the phenomenon putting in place, improve the comfort that product uses；And playing certain cushioning effect, protection motor improves its service life.

Description

Axis with electric bicycle running status discrimination function is stopped apparatus for transmitting signal

Technical field

This utility model is related to a kind of axis with electric bicycle running status discrimination function and stops apparatus for transmitting signal.

Background technology

Dao Sha mechanism is the mechanism to produce braking effect with pedal, that is, provide and reversed by crank back-pedalling using chain When, link with the braking mechanism being arranged in hub spindle, thus producing the action that trailing wheel is braked.This braking mechanism exists Use more on the old-fashioned standard bicycle in past, our countries are more rare at present, but in some countries and regions also There is larger demand, and some also standards as bicycle safe skidding mechanism to be used.

With electronic（Power-assisted）Bicycle being widely popularized and develop in the world, above-mentioned Dao Sha mechanism naturally also can With to part electric bicycle.In order to prevent from motor from stopping in running up causing motor damage and many during practice Safety problem it is known that electric bicycle generally apparatus for transmitting signal of stopping all is installed on axis as preposition electricity in a flash Machine braking device.Mainly using Hall element as the core component of signal transmission during braking, its principle is by suddenly to this kind of device Your element is sensing the flux change by the magnet pedaled on the component that power deflects, and then produces brake signal and implement system to motor Dynamic.

Stop in apparatus for transmitting signal with more at present, the component of deflection relatively mainly selects axis and chain wheel or tooth The located in connection component of disk, is produced by the flux change that the Hall element of fixing one senses the single magnet steel on another Brake signal.But through long-term practice, find there is following defect：

1）Device can only machinery brake signal is assigned according to flux change, and the actual fortune of electric bicycle cannot be differentiated Row state, and give, according to state, the instruction that motor is suitable in advance, so can have a strong impact on riding safety.For example：When electronic from When normally riding, user unclamps foot-operated needs and gets off for driving（Do not stop and put in place, Dao Sha mechanism is failure to actuate）, now controller by Think electric bicycle also advancing in not receiving signal of accurately stopping, both will not controlled motor out of service, also will not Send the instruction of deceleration to motor, thus causing " driving "（Electric bicycle cannot stop）Situation.

2）Lack elastic body between the deflecting member of device to provide certain cushioning effect, easily in back-pedal to electricity Machine causes to damage, and reduces its service life.

3）Device cannot adjust brake and pedal power, namely can not give people's foot with suitable brake feedback force, and user usually exists Have in a flash " sky is pedaled ", or do not pedal the sensation putting in place, largely effect on the comfortable experience of product.

Content of the invention

This utility model purpose is：For problem present in background technology, and provide one kind can differentiate electrical salf-walking The actual motion state of car, and accordingly to the motor deceleration to meet in the case of non-stopping that sends accurate and suitable instruction with stop The axis of car demand is stopped apparatus for transmitting signal, and this device can be adjusted to brake feedback force simultaneously, has higher work Reliability and comfort.

The technical solution of the utility model is：A kind of axis with electric bicycle running status discrimination function is stopped signal Transfer device, including signal generation device with for receiving this signal with the controller of braking motor, described signal generation device The middle shaft gear including the axis being arranged on vehicle frame, being set on axis and the chain wheel being fixed on axis, described chain wheel warp Chain is connected with the braking mechanism being arranged on hub for vehicle wheel；It is characterized in that：

Fixing or be integrally formed with driver plate on described axis, and middle shaft gear is provided with the mesopore with driver plate cooperation, described group Some driving levers are circumferentially radially provided with disk, the corresponding each driving lever of described mesopore inwall is provided with spacing for swing around Driving lever both sides in groove, and stopper slot are all to being provided with dynamic clamping head and quiet clamping head；

Also include coil signal derivation mechanism and hall sensing assembly, described coil signal derivation mechanism includes being fixed on car First coil skeleton on frame and be fixed on the second coil rack on axis or driver plate, described first coil skeleton is wound with One induction coil, and the second induction coil with the first induction coil concentric arrangement is wound with the second coil rack, described first Induction coil is electrically connected with described controller；

The first magnet ring that described hall sensing assembly includes being fixed on middle shaft gear, be fixed on driver plate or axis and with Second magnet ring of the first magnet ring arranged concentric, stop sensing Hall and phase place sensing Hall group；Described stop sensing Hall with Axle or driver plate or the second coil rack are fixed, and electrically connect with the second induction coil, for sensing between first and second magnet ring Flux change amount；And described phase place sensing Hall group is included being fixed on first coil skeleton and is electrically connected with the first induction coil The first phase sensing Hall connecing and second phase sensing Hall, wherein first phase sensing Hall is relative with the first magnet ring, and Second phase sensing Hall is relative with the second magnet ring.

Further, motor described in this utility model is built-in motor, the output shaft of this built-in motor is fixed with defeated Go out gear, described output gear is connected with axis gear drive through decelerator.Concrete structure certainly for built-in motor and dress Formula formula is known technology, no longer describes in detail in this utility model.

Further, driving lever described in this utility model is along the equiangularly spaced distribution of driver plate circumference.

Further, radial elastic return unit described in this utility model is spring, on the inwall of described stopper slot both sides All have the spring mounting hole accommodating described spring.

Further, the first magnet ring described in this utility model is with diameter greater than the second magnet ring, and described second magnet ring is located at the One magnet ring inner ring.

Further, the first magnet ring described in this utility model and the second magnet ring are respectively provided with alternatively distributed S, N magnetic pole；Institute State controller to pass through to receive the pole change letter of the corresponding magnet ring that first phase senses Hall and second phase sensing Hall output Number first obtained phase contrast later, and then differentiate the running status of electric bicycle.It is specially：

1）When first phase sensing Hall exports pole change signal with second phase sensing Hall output simultaneously, no phase place Difference, controller judges electric bicycle as free state（Resting state）, not controlled motor operating；

2）When second phase sensing Hall output pole change signal is ahead of first phase sensing Hall, it is leading phase Difference, controller judges that electric bicycle is in forward travel state, and controlled motor runs well；

3）Advancing electric bicycle returns to aforementioned free state, and that is, first phase sensing Hall and second phase sense When Hall output exports pole change signal simultaneously, no phase contrast, controller judges that electric bicycle needs to slow down, controlled motor Do even deceleration regime；

4）Second phase sensing Hall output pole change signal lag, when first phase sensing Hall, is lagging phase Difference, controller judges that electric bicycle is in the state of stopping, and controlled motor shuts down.

Further, sensing Hall of stopping described in this utility model is located between the first magnet ring and the second magnet ring, should fall Sensing Hall of stopping changes induced flux change by the polarity of the magnetic pole on corresponding first magnet ring, and then to control Device exports signal of stopping.

Further, it is provided with bearing between middle shaft gear and axis described in this utility model.

The described axis being related in this utility model, its two ends is equally installed foot-operated with routine techniquess by crank.

It is to be appreciated that this utility model is the preposition dynamic braking device of electric bicycle Dao Sha mechanism（Only undertake signal Transmission function）, for being related to be connected through chain with chain drum and be arranged on wheel（Trailing wheel）Braking mechanism on wheel hub is known Technology, its structure, assembling mode and operating principle all can participate in prior art, and equally, controller connects control to the circuit of motor Technology processed is also known technology, and this utility model no longer describes in detail to it.

The utility model has the advantages that：

1. the major design core of this utility model device is double magnet rings and two phase places sense Hall, by this Analysis of Nested Design The running status of electric bicycle can be differentiated, for example, be in forward travel state, or free state, or stop state, according to This gives motor and accurately and suitably instructs, rather than is exporting and executing instruction of stopping of machinery.Especially work as electrical salf-walking When car is in free state, controller can send the instruction of deceleration it is ensured that bicyclist is in the case of being not carried out stopping to motor Be not in the situation of " driving " when needing and slowing down or stop, substantially increase reliability and the riding safety of electric bicycle Property.

2. second core design of this utility model device is in driver plate and middle shaft gear（Two deflecting members）Between Increased dynamic clamping head and quiet clamping head, due to the elastic force of dynamic clamping head and quiet clamping head can be adjusted, change in a flash pedal power, thus giving People's foot is with suitable brake feedback force, therefore this design also eliminates conventional products " sky is pedaled " in a flash, or does not pedal and put in place Phenomenon, substantially increases the comfort of product use.

3. this utility model introduces dynamic clamping head and quiet clamping head between driver plate and middle shaft gear, this design also can back-pedal when Waiting gives drive mechanism certain cushioning effect, thus playing certain protective effect to motor, prevents its part premature loss, This is conducive to improving motor service life.

4. this utility model passes through two induction coil transmission signals of concentric arrangement and charges for sensing Hall of stopping, For non-contact type signal transmission and charge, compare original line contact transmission mechanism, be not in lead line tangle and Situation about damaging, simplifies structure, while being easy to designer's installation, also makes the work spirit that this utility model device is overall Sensitivity and reliability are higher.And the cordless between induction coil need not consider too many factor when topology layout configures, Without the mechanical type anti-interference circuit derivation mechanism using complex precise, installation rate faster, can greatly improve production effect Rate, saves production cost simultaneously.

5. will stop in device of the present utility model part and phase judgment partly ingenious combination, compact overall structure, cloth Office is rationally it is easy to while assembling is implemented, save space again.

Brief description

Below in conjunction with the accompanying drawings and embodiment is further described to this utility model：

Fig. 1 is structure principal section figure of the present utility model；

Fig. 2 is electric bicycle free state（No pedal power）Driver plate and gear wheel fit structure sectional view（With Hall Element and magnet ring position relationship）；

Fig. 3 is electric bicycle forward travel state（Pedal before people）Driver plate and gear wheel fit structure sectional view（With Hall Element and magnet ring position relationship）；

Fig. 4 stops state for electric bicycle（People's back-pedal）Driver plate and gear wheel fit structure sectional view（With Hall Element and magnet ring position relationship）.

Wherein：1st, vehicle frame；2nd, axis；3rd, middle shaft gear；4th, driver plate；4a, driving lever；5th, stopper slot；5a, spring mounting hole； 6th, first coil skeleton；7th, the second coil rack；8th, the first induction coil；9th, the second induction coil；10th, the first magnet ring；11st, Two magnet rings；12nd, stop sensing Hall；13rd, first phase sensing Hall；14th, second phase sensing Hall；15th, spring；16th, axle Hold.

Specific embodiment

Embodiment：In conjunction with shown in Fig. 1 ~ Fig. 4, to the axis with electric bicycle running status discrimination function for this utility model The specific embodiment of apparatus for transmitting signal of stopping illustrates.

The present embodiment is specifically assemblied in using on the electric bicycle of built-in motor, by signal generation device be used for receiving This signal is collectively constituted with the controller of braking motor, as shown in figure 1, wherein motor and controller omit.Signal generation device Conventional structure be：Vehicle frame 1, the axis 2 being arranged on vehicle frame 1, middle shaft gear 3 and being set in by bearing 16 on axis 2 It is fixed on the chain wheel on axis 2（Omit）, described chain wheel through chain be arranged on wheel（Afterwards）Braking mechanism on wheel hub（In figure Omit）It is connected.As the prior art, the output shaft of this built-in motor is fixed with output gear, described output gear is through subtracting Fast device is in transmission connection with middle shaft gear 3.The two ends of axis 2 are equally installed foot-operated with routine techniquess by crank（In figure is omitted）. Concrete structure certainly for built-in motor and assembling mode are known technology, no longer describe in detail in this utility model.This practicality New core is improved as follows：

Keyway cooperation on the axis 2 in signal generation device in the present embodiment（See Fig. 2 ~ 4）It is fixed with driver plate 4, and in Shaft gear 3 be provided with driver plate 4 cooperation mesopore, on described driver plate 4 circumferentially equiangularly spaced be radially provided with three dial Bar 4a, the corresponding each driving lever 4a of described mesopore inwall is provided with the stopper slot 5 for swinging around, and the driving lever 4a two in stopper slot 5 Side is all to being provided with spring 15.Described spring 15 is positioned in the spring mounting hole 5a accordingly have on stopper slot 5 both sides inwall.

Signal generation device also includes coil signal derivation mechanism and hall sensing assembly.

The composition of coil signal derivation mechanism described in the present embodiment is as follows：It has and is fixed by screws on vehicle frame 1 First coil skeleton 6 and second coil rack 7 fixing with driver plate 4, described first coil skeleton 6 is wound with first line of induction Circle 8, and the second induction coil 9 with the first induction coil 8 concentric arrangement is wound with the second coil rack 7, described first sensing Coil 8 is electrically connected with described controller.

The composition of hall sensing assembly described in the present embodiment is as follows：It has the first magnetic being fixed on middle shaft gear 3 Ring 10, be fixed on driver plate 4 and the second magnet ring 11 with the first magnet ring 10 arranged concentric, stop sensing Hall 12 and phase place sensing Hall group；Aforementioned second coil rack 7 actually passes through screw lock with the second magnet ring 11.Described sensing Hall 12 of stopping Fixing with the second coil rack 7, and electrically connect with the second induction coil 9, for sensing the magnetic between first and second magnet ring 10,11 Logical variable quantity；And described phase place senses Hall group by being fixed on first coil skeleton 6 and electrically connect with the first induction coil 8 First phase sensing Hall 13 and second phase sensing Hall 14 collectively constitute, wherein first phase sensing Hall 13 and the first magnetic Ring 10 is relative, and second phase sensing Hall 14 is relative with the second magnet ring 11.

In said structure, the first magnet ring 10 and middle shaft gear 3 synchronous axial system, and the second induction coil 9, the second magnet ring 11, Stop sensing Hall 12 and driver plate 4 then with axis 2 synchronous axial system.

Operation principle explanation：

Using wireless charging principle, powered to the second induction coil 9 by the first induction coil 8, so that feeling with second Answering connected the stopping of coil 9 to sense Hall 12 can be with normal work（As shown in Figure 1）, the signal of same sensing Hall 12 of stopping Also exported to controller through the first induction coil 8 by the second induction coil 9.

In conjunction with shown in Fig. 2 ~ Fig. 4, operation principle of the present utility model passes through following three（Electric bicycle）Work shape State is illustrating：A, free state；B, forward travel state；C, state of stopping.

A, free state, as shown in Fig. 2 i.e. dead ship condition：

A, foot-operated on no pedal power, axis 2 does not stress and driver plate 4 will not be driven to rotate, therefore the spring 15 of driving lever 4a both sides is all not Deform upon；

B, stop sensing the first and second magnet rings 10,11 about 12 for the Hall between no relatively rotate（On first magnet ring 10 The relative magnetic pole of sensing Hall 12 is always S pole with stopping）, see Fig. 2, sensing Hall 12 of stopping cannot sense flux change, So not exporting signal of stopping；

Between c, the first magnet ring 10 and the second magnet ring 11 relative to magnetic pole identical, that is, polar orientation is identical, now two phases Position sensing Hall 13,14 can sense the magnetic field needed for output signal simultaneously, so no phase contrast, not phase difference output letter Number；

D, controller do not receive phase signal, judge that vehicle remains static, not controlled motor operating（Non- system Dynamic）.

B, forward travel state, as shown in Figure 3：

A, now people's pedal make axis 2 stress, and axis 2 drives driver plate 4 to rotate so that fixing with driver plate 4 second Magnet ring 11 turns an angle, and the spring 15 of driving lever 4a both sides all deforms upon；

Although b, stop sensing the first and second magnet rings 10,11 about 12 for the Hall between relatively rotate, the first magnetic It is still S pole with the relative magnetic pole of sensing Hall 12 of stopping on ring 10, sees Fig. 3, sensing Hall 12 of stopping cannot sense magnetic flux Change, so do not export signal of stopping；

C, because pedaling before people during, the second magnet ring 11 first magnet ring 10 relatively turns an angle forward, therefore both poles Property direction change, by second phase sense Hall 14 than first phase sense Hall 13 sense output signal institute in advance The magnetic field needing, so the output signal of two phase place sensing Halls 13,14 occurs in that successively, thus creating phase contrast, now Our this phase contrast is called leading phase potential difference, and controller judges after receiving this phase contrast that now vehicle is in advance shape State, controlled motor runs well, motor and then drive axis 2 to rotate by middle shaft gear 3, gives power-assisted of riding, the first magnet ring 10 with middle shaft gear 3 and the second magnet ring 11 synchronous rotary；

If d, now removing active force to axis 2（Power of before pedaling releases）, axis 2（Driver plate 4）Due to driving lever 4a two The reset response of lateral spring 15 is restored to free state as shown in Figure 2, sensing Hall about 12 first and second of stopping No relatively rotate between magnet ring 10,11（It is always S pole with the relative magnetic pole of sensing Hall 12 of stopping on first magnet ring 10）, see figure 2, sensing Hall 12 of stopping cannot sense flux change, so not exporting signal of stopping；Controller had not both received letter of stopping Number, do not receive phase signal yet, judge that electric bicycle needs in advancing to slow down accordingly, rather than as routine techniquess Directly judge that electric bicycle keeps forward travel state, therefore controller sends instruction controlled motor and does uniformly retarded motion so that electronic Bicycle can at the uniform velocity, lentamente slow down, without allowing electric bicycle that the situation of driving occurs.

C, state of stopping, as shown in Figure 4：

Pedal so that axis stress after a, now people, axis 2 drives driver plate 4 to invert so that fixing with driver plate 4 second Magnet ring 11 also inverts certain angle, and the spring 15 of driving lever 4a both sides all deforms upon；

B, stop sensing the first and second magnet rings 10,11 about 12 for the Hall between relatively rotate, the first magnet ring 10 Above it is changed into N pole with the relative magnetic pole of sensing Hall 12 of stopping, sees Fig. 4, sensing Hall 12 of stopping senses flux change, thus defeated Go out signal of stopping；

C, because pedaling after people during, the second magnet ring 11 first magnet ring 10 relatively rotates backward certain angle, therefore both poles Property direction also change, because second phase senses Hall 14, than first phase sensing, Hall 13 is delayed senses output signal Required magnetic field, so the output signal of two phase place sensing Halls 13,14 also occurs in that successively, thus creating phase contrast, Now our this phase contrast is called that lagging phase is poor, after controller receives this phase signal and aforementioned signal of stopping Judge that now vehicle is in the state of stopping, direct controlled motor shuts down, and chain wheel is through on chain drive hub for vehicle wheel simultaneously Braking mechanism action implements braking to electric bicycle, until its stopping.

Certainly above-described embodiment is only that technology design of the present utility model and feature are described, its object is to allow and is familiar with this The people of technology will appreciate that content of the present utility model and implements according to this, can not limit protection model of the present utility model with this Enclose.The modification that all spirit according to this utility model main technical schemes are done, all should cover in guarantor of the present utility model Within the scope of shield.

Claims (8)

1. a kind of axis with electric bicycle running status discrimination function is stopped apparatus for transmitting signal, including signal generation device With for receiving this signal with the controller of braking motor, described signal generation device includes being arranged on vehicle frame（1）On axis （2）, be set in axis（2）On middle shaft gear（3）Be fixed on axis（2）On chain wheel, described chain wheel is through chain and installation Braking mechanism on hub for vehicle wheel is connected；It is characterized in that：

Described axis（2）Upper fixation or be integrally formed with driver plate（4）, and middle shaft gear（3）It is provided with and driver plate（4）In cooperation Hole, described driver plate（4）On be circumferentially radially provided with some driving levers（4a）, the described mesopore inwall each driving lever of correspondence（4a）It is provided with For the stopper slot swinging around（5）, and stopper slot（5）Interior driving lever（4a）Both sides are all to being provided with dynamic clamping head and quiet clamping head；

Also include coil signal derivation mechanism and hall sensing assembly, described coil signal derivation mechanism includes being fixed on vehicle frame （1）On first coil skeleton（6）And it is fixed on axis（2）Or driver plate（4）On the second coil rack（7）, described First Line Ring framework（6）On be wound with the first induction coil（8）, and the second coil rack（7）On be wound with and the first induction coil（8）Join with one heart The second induction coil put（9）, described first induction coil（8）Electrically connect with described controller；

Described hall sensing assembly includes being fixed on middle shaft gear（3）On the first magnet ring（10）, be fixed on driver plate（4）Or axis （2）Upper and with the first magnet ring（10）Second magnet ring of arranged concentric（11）, sensing Hall of stopping（12）Sense Hall group with phase place； Described sensing Hall of stopping（12）With axis（2）Or driver plate（4）Or the second coil rack（7）Fixing, and sense with second Coil（9）Electrical connection, for sensing first and second magnet ring（10、11）Between flux change amount；And described phase place senses Hall group Including being fixed on first coil skeleton（6）Upper and with the first induction coil（8）The first phase sensing Hall of electrical connection（13）With Second phase senses Hall（14）, wherein first phase sensing Hall（13）With the first magnet ring（10）Relatively, second phase sense Answer Hall（14）With the second magnet ring（11）Relatively.

2. the axis with electric bicycle running status discrimination function according to claim 1 is stopped apparatus for transmitting signal, It is characterized in that described motor is built-in motor, the output shaft of this built-in motor is fixed with output gear, described output gear Through decelerator and middle shaft gear（3）It is in transmission connection.

3. the axis with electric bicycle running status discrimination function according to claim 1 is stopped apparatus for transmitting signal, It is characterized in that described driving lever（4a）Along driver plate（4）The equiangularly spaced distribution of circumference.

4. the axis with electric bicycle running status discrimination function according to claim 1 is stopped apparatus for transmitting signal, It is characterized in that described radial elastic return unit is spring（15）, described stopper slot（5）Receiving institute is all had on the inwall of both sides State spring（15）Spring mounting hole（5a）.

5. the axis with electric bicycle running status discrimination function according to claim 1 is stopped apparatus for transmitting signal, It is characterized in that described first magnet ring（10）With diameter greater than the second magnet ring（11）, described second magnet ring（11）Positioned at the first magnet ring （10）Inner ring.

6. the axis with electric bicycle running status discrimination function according to claim 1 is stopped apparatus for transmitting signal, It is characterized in that described first magnet ring（10）With the second magnet ring（11）It is respectively provided with alternatively distributed S, N magnetic pole；Described controller leads to Cross reception first phase sensing Hall（13）Sense Hall with second phase（14）The pole change signal of the corresponding magnet ring of output First obtained phase contrast later, and then differentiate the running status of electric bicycle.

7. the axis with electric bicycle running status discrimination function according to claim 1 is stopped apparatus for transmitting signal, It is characterized in that described sensing Hall of stopping（12）Positioned at the first magnet ring（10）With the second magnet ring（11）Between, this stops sensing suddenly You（12）By corresponding first magnet ring（10）On the polarity of magnetic pole change induced flux change, and then to control Device exports signal of stopping.

8. the axis with electric bicycle running status discrimination function according to claim 1 is stopped apparatus for transmitting signal, It is characterized in that described middle shaft gear（3）With axis（2）Between be provided with bearing（16）.