CN109861358B

CN109861358B - Generator for electric bicycle

Info

Publication number: CN109861358B
Application number: CN201910190632.1A
Authority: CN
Inventors: 朴元成; 黄晚荣; 潘宇华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2022-09-20
Anticipated expiration: 2039-03-13
Also published as: CN109861358A

Abstract

The invention discloses a generator for an electric bicycle, which relates to the technical field of generating equipment, and also comprises a shell, a second battery and a charging circuit, wherein the shell is fixed on a bracket, a supporting plate, an installation plate and a driven shaft are arranged in the shell, and the driven shaft is rotatably connected in the shell and synchronously rotates with a rotating shaft; the support plate and the shell are fixed and sleeved on the driven shaft, a plurality of coils are arranged on the support plate, each coil is electrically connected with the input end of the charging circuit, and the output end of the charging circuit is electrically connected with the second battery; the mounting panel is provided with two and distributes in the both sides of backup pad, and on the fixed cover of each mounting panel located the driven shaft, be provided with magnet on each mounting panel respectively, magnet one-to-one just and magnetism are opposite on two mounting panels. The generator generates power and charges the second battery while the wheels rotate, so that the second battery is used as a standby battery to prolong the service time of the first battery of the electric bicycle.

Description

Generator for electric bicycle

Technical Field

The invention relates to the technical field of power generation equipment, in particular to a generator for an electric bicycle.

Background

In recent years, the problem of global warming has been exacerbated due to the increase in greenhouse gas emissions and the development of low-emission energy technologies, thereby releasing environmentally-friendly vehicles such as hybrid vehicles and electric bicycles. Wherein, electric bicycle uses first battery and motor to transmit power for the walking wheel to provide and go conveniently and do not step on the footboard.

However, since the conventional electric bicycle can travel a distance corresponding to the current charge amount of the first battery, the electric bicycle loses the electric driving function when the first battery is intermediately discharged or the charge amount of the first battery is insufficient due to user's carelessness during long-distance traveling.

Therefore, when a user drives the electric bicycle, the user needs to frequently check the residual capacity of the first battery and carry the standby battery at any time, so that the stress of the user is increased.

Disclosure of Invention

The invention aims to provide a generator for an electric bicycle, which generates power and charges a second battery while wheels rotate, so that the second battery can be used as a spare battery to prolong the service time of a first battery of the electric bicycle.

The purpose of the invention is realized by the following technical scheme:

a generator for an electric bicycle is arranged on a wheel, the wheel is arranged on a bracket of corresponding equipment, the wheel is provided with a rotating shaft which rotates synchronously, the generator also comprises a shell, a second battery and a charging circuit, the shell is fixed on the bracket, a supporting plate, an installing plate and a driven shaft are arranged in the shell, and the driven shaft is rotatably connected in the shell and rotates synchronously with the rotating shaft; the support plate and the shell are fixed and sleeved on the driven shaft, a plurality of coils used for charging the second battery are arranged on the support plate, the coils are distributed along the circumferential direction of the driven shaft, each coil is electrically connected with the input end of the charging circuit, and the output end of the charging circuit is electrically connected with the second battery; the mounting panel is provided with two and distributes in the both sides of backup pad along the axis direction of mounting panel, and on the fixed cover of each mounting panel was located the driven shaft, be provided with a plurality of magnets that distribute along driven shaft circumference and correspond with the coil position on each mounting panel respectively, magnet one-to-one on two mounting panels just sets up and magnetism is opposite, just is parallel with the driven shaft to the extending direction between the magnet.

Adopt above-mentioned technical scheme, through setting up the casing, the casing is fixed for the support, and when the wheel rotated promptly, two mounting panels rotated with the wheel is synchronous, and the mounting panel rotates for the backup pad promptly. Because the coil sets up in the backup pad, magnet sets up on the mounting panel and corresponds with the coil position, and the magnet on two mounting panels is just right and magnetism opposite one by one, forms the magnetic field that accords with magnetism and give birth to electricity between two mounting panels promptly, and when the coil rotated, the coil cut magnetism induction line makes the coil electrified and charges to the second battery through charging circuit to make the second battery use as stand-by battery, with the live time of extension electric bicycle first battery. The extending directions of the two opposite corresponding magnets are parallel to the driven shaft, so that the magnetic field between the corresponding magnets is increased, and the power generation efficiency is improved.

The invention is further configured to: the magnets on the mounting plates are uniformly divided into a plurality of magnet groups, the magnets contained in the magnet groups are sequentially arranged adjacently, and the magnets corresponding to the magnet groups have the same magnetism.

By adopting the technical scheme, the magnets are grouped, and the magnets in the same group have the same magnetism, so that the same direction of the magnetic induction lines of the magnets in the same group is ensured.

The invention is further configured to: adjacent magnet sets are oppositely magnetized.

By adopting the technical scheme, the magnetism of the adjacent magnet groups is opposite, so that the magnetic induction lines of the two magnets with opposite magnetism repel each other, namely, the magnetic induction lines at the two ends of the magnet groups are in a contraction state, the local density of the magnetic induction lines is improved, and the power generation efficiency is improved.

The invention is further configured to: still including supplementary module of charging, supplementary module of charging includes auxiliary coil and a plurality of pointed end component, and the border of locating the backup pad is inlayed to the one end of each pointed end component, and the other end surpasss the backup pad, and auxiliary coil links to each other with each pointed end component, and auxiliary coil still communicates with charging circuit's input electricity.

With the above technical solution, by providing the tip member and the auxiliary coil to recover the electric power lost near the coil and the support plate, the charging function of the charging unit can be greatly improved.

The invention is further configured to: the auxiliary charging module further comprises a voltage regulating unit for regulating the input voltage of the charging circuit, and the voltage regulating unit is electrically connected with the charging circuit.

By adopting the technical scheme, the input voltage of the charging circuit is adjusted by arranging the voltage adjusting unit, so that the preset rated voltage is met, the input voltage of the second battery is matched, and the service life of the second battery is prolonged.

The invention is further configured to: a first mounting groove used for embedding the coil is formed in one end face of the supporting plate, and a second mounting groove used for embedding the magnet is formed in one end face of each mounting plate.

Adopt above-mentioned technical scheme, through setting up first mounting groove and second mounting groove to be used for inlaying and establish coil and magnet, with the stability that improves coil and magnet installation.

The invention is further configured to: still including being used for adjusting the drive unit of driven shaft rotational speed, drive unit including set up with the casing driving gear and driven gear, the driving gear is fixed to be overlapped and is located on the axis of rotation, driven gear is fixed to be located on the driven shaft and with the driving gear meshing.

By adopting the technical scheme, when the gear rotates, the driving gear and the transmission shaft synchronously and coaxially rotate, so that the driven gear and the driven shaft are driven to synchronously rotate, and the coil and the magnet are driven to rotate relatively.

The invention is further configured to: the rotation ratio of the driving gear to the driven gear is 1: 2-1: 40.

by adopting the technical scheme, the rotation ratio of the driving gear to the driven gear is 2-40 weeks, namely the speed of the coil for cutting the magnetic induction line is increased, so that the efficiency of the generator is improved; the rotation ratio is 1: 2-1: 40 to match the actual running speed of the bicycle.

The invention is further configured to: also comprises a discharge circuit and a switching module, the switching module comprises a detection unit and a discharge control unit,

the detection unit outputs a detection signal when the detection unit detects the corresponding environment signal;

the input end of the discharging control unit is coupled with the output end of the detection unit, responds to the detection signal and outputs a control signal which enables the second battery to reduce the charging efficiency and discharge;

and the input end of the discharge circuit is coupled with the output end of the discharge control unit and outputs an output signal for providing power for the rotation of the wheel.

By adopting the technical scheme, when the detection unit captures the corresponding environment signal, the detection unit outputs the detection signal, so that the second battery stops charging and discharges to the discharge circuit under the action of the discharge control unit, and the second battery is switched between charging and discharging.

The invention is further configured to: the detection unit is arranged as an inclination detection sensor used for sensing whether the support inclines or not, the inclination sensor is installed on the shell, and when the shell inclines to a preset angle, the output end of the inclination sensor outputs a detection signal.

Adopt above-mentioned technical scheme, through setting up the slope detection sensor, when the user is riding bicycle uphill, and the casing slope when predetermineeing the angle, the slope sensor output detection signal, the outside output voltage of second battery this moment, and each coil is got electric, has increased wheel pivoted power to reduce staff's pressure.

In conclusion, the beneficial technical effects of the invention are as follows:

(1) by arranging the second battery, the supporting plate and the mounting plate, the generator generates electricity and charges the second battery while the wheels rotate, so that the second battery is used as a standby battery to prolong the service time of the first battery of the electric bicycle;

(2) by providing the tip member and the auxiliary coil to recover the electric power lost near the coil and the coil support plate, the charging function of the charging unit can be greatly improved;

(3) through setting up voltage regulation unit, adjust charging circuit's input voltage to accord with predetermined rated voltage, with the input voltage of cooperation second battery, improve the life of second battery.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention, showing the generator in relation to the wheel;

FIG. 2 is a partial schematic view of the present invention showing the internal structure of the housing;

FIG. 3 is a partial schematic view of the present invention showing the positional relationship of the support plate to the mounting plate;

FIG. 4 is a partial schematic view of the interior of the housing showing the connection of the rotating shaft to the driven shaft;

FIG. 5 is a cross-sectional view of the support plate of the present invention showing the connection of the support plate to the tip member;

FIG. 6 is a schematic view of a mounting plate;

fig. 7 is a schematic diagram of the present invention, showing the position relationship of the auxiliary charging module, the switching module, the second battery and the charging circuit.

Reference numerals: 1. a wheel; 2. a support; 3. a rotating shaft; 4. a driven shaft; 5. a housing; 6. a driving gear; 7. a driven gear; 8. a support plate; 81. a first mounting groove; 82. a coil; 9. mounting a plate; 91. a second mounting groove; 92. a magnet; 10. an intermediate box; 11. an auxiliary charging module; 111. a tip member; 112. a voltage regulating unit; 12. inserting the groove; 13. wiring grooves; 14. a second battery; 15. a discharge circuit; 16. a switching module; 161. a detection unit; 162. a discharge control unit; 17. a charging circuit; 18. a magnet group.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the invention are different, but not necessarily mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. It is also to be understood that the location or arrangement of individual elements within each described embodiment may be modified without departing from the spirit and scope of the invention.

The detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, appropriately interpreted, along with the full range of equivalents to which the claims are entitled. In the drawings, like numerals refer to the same or similar functionality throughout the several views.

While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment. In addition, in some cases, there may be terms arbitrarily selected by the applicant, and the meanings thereof will be described in detail in the description of the corresponding invention. Accordingly, terms used in the present invention should be defined based on their meanings, not based on names of simple terms, but based on the entire contents of the present invention.

Whenever an element is referred to as being "comprising" throughout this specification, it is understood that the element may comprise other elements, without departing from the spirit or scope of the invention. Furthermore, the term "portion". quadrature.. module "or the like" means a unit for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software.

Referring to fig. 1 and 7, a generator for an electric bicycle is mounted on a wheel 1, and the wheel 1 is mounted on a corresponding device through a bracket 2, i.e., the wheel 1 can rotate relative to the bracket 2. The generator comprises a housing 5, a second battery 14, a charging circuit 17, an auxiliary charging module 11 and a switching module 16, wherein the second battery 14 and the charging circuit 17 are arranged in an intermediate box 10.

Referring to fig. 1 and 2, the housing 5 may be provided in a square shape (the shape of the housing 5 may be changed as the case may be), and the housing 5 is fixed to the bracket 2 so that the wheel 1 may rotate relative to the bracket 2. The wheel 1 has a rotating shaft 3, and one end of the rotating shaft 3 protrudes into the housing 5. The shell 5 is also internally provided with a supporting plate 8, a mounting plate 9 and a driven shaft 4.

Referring to fig. 2 and 4, a transmission unit is arranged in the housing 5, and includes a driving gear 6 and a driven gear 7, wherein the driven shaft 4 is rotatably connected to the bracket 2, the driven shaft 4 may be cylindrical, the axis of the driven shaft 4 is parallel to the rotating shaft 3, and the side wall of the driven shaft 4 is spaced from the side wall of the rotating shaft 3; the driving gear 6 is fixedly sleeved on the rotating shaft 3, the driven gear 7 is fixedly sleeved on the driven shaft 4, and the driving gear 6 and the driven gear 7 are meshed, so that the driven shaft 4 can be driven to synchronously rotate when the wheel 1 rotates.

Referring to fig. 2 and 4, the rotation ratio of the driving gear 6 to the driven gear 7 is 1: 2-1: 40, preferably 1: 6. therefore, when the wheel 1 continuously rotates for one circle, the driven shaft 4 rotates for at least 2-40 circles, and the power generation efficiency of the generator is improved.

Referring to fig. 2 and 3, the support plate 8 may be rotatably sleeved on the driven shaft 4 through a bearing, and a side wall of the support plate 8 may be disposed in a cylindrical shape or a square shape. The locating lever can be provided with in casing 5, and the locating lever is synchronous and bracing piece and the inside fixed of casing 5 to when driven shaft 4 rotates, backup pad 8 is fixed for casing 5, and driven shaft 4 is fixed for backup pad 8 promptly.

Referring to fig. 2 and 3, a first mounting groove 81 may be formed in any one end surface of the support plate 8, the first mounting grooves 81 may be distributed along the circumferential direction of the driven shaft 4, and the first mounting grooves 81 may be uniformly distributed along the circumferential direction of the driven shaft 4 for uniformity of power generation. Coils 82 are respectively fixed in the first mounting grooves 81, and the coils 82 may be wound in an annular shape, and the winding axis of the coils 82 may be arranged in parallel with the driven shaft 4.

Referring to fig. 2 and 6, the mounting plate 9 is fixedly sleeved on the driven shaft 4, so that the mounting plate 9 can rotate synchronously with the driven shaft 4, i.e., the mounting plate 9 can rotate relative to the support plate 8. And the mounting panel 9 is provided with two and distributes in the both sides of backup pad 8, and mounting panel 9 and backup pad 8 parallel arrangement, and backup pad 8 can set up in the intermediate position department of two mounting panels 9, and driven shaft 4 can be synchronous perpendicular with backup pad 8, each mounting panel 9 in step.

Referring to fig. 2 and 6, a second mounting groove 91 is respectively formed in any one end surface of each mounting plate 9, the second mounting grooves 91 are distributed along the circumferential direction of the driven shaft 4, and the second mounting grooves 91 may be uniformly distributed along the circumferential direction of the driven shaft 4 for uniformity of power generation. Magnets 92 are respectively fixed in the first mounting grooves 81, and the magnets 92 may be disposed in a square shape. The quantity and the distribution mode of the magnets 92 on the two mounting plates 9 are the same, and the magnets 92 are arranged in a one-to-one opposite mode. And the magnets 92 facing each other are arranged to have different magnetic properties, so that a line of magnetic induction is formed between the two mounting plates 9. The distance between the horizontal center line of the magnet 92 and the driven shaft 4 and the distance between the axis of the coil 82 and the driven shaft 4 may be equal, thereby achieving the cutting of the magnetic induction line by the coil 82.

Referring to fig. 2 and 6, the magnets 92 on each mounting plate 9 may be uniformly divided into a plurality of magnet groups 18, the magnets 92 included in each magnet group 18 are disposed adjacent to each other, and the magnets 92 corresponding to each magnet group 18 may have the same magnetic properties. The adjacent magnet groups 18 may have opposite magnetism, so that the magnetic induction lines of the two magnets 92 with opposite magnetism repel each other, i.e. shrink with the magnetic induction lines at the two ends of the magnet group 18, thereby increasing the local density of the magnetic induction lines and improving the power generation efficiency.

Referring to fig. 2 and 7, the present generator may further include an auxiliary charging module 11, the charging module 11 being disposed in the intermediate box 10, and referring to fig. 2 and 3, the auxiliary charging module 11 including an auxiliary coil and a plurality of tip members 111, the tip members 111 may be disposed as a ferrous material. The inside wiring groove 13 of having seted up of backup pad 8, wiring groove 13 can be provided with two and along driven shaft 4's radial setting, and two wiring grooves 13's mutually perpendicular set up, and wiring groove 13 runs through backup pad 8 respectively.

Referring to fig. 3 and 5, the sidewall of the supporting plate 8 is provided with four insertion grooves 12, the four insertion grooves 12 may be uniformly distributed on the supporting plate 8, and the insertion grooves 12 are correspondingly communicated with the wiring grooves 13. The number of the tip members 111 may be four, and the tip members 111 are engaged with the insertion slots 12 one by one, that is, one section of the tip member 111 is engaged with the insertion slot 12, and the other end extends out of the support plate 8. The auxiliary coil may be disposed in the wiring groove 13 and connected to the tip member 111, thereby achieving auxiliary charging.

Referring to fig. 2 and 7, the auxiliary charging module 11 may further include a voltage regulating unit 112, the generator further includes a discharging circuit 15 and a switching module 16, and the switching module 16 includes a detecting unit 161 and a discharging control unit 162.

Referring to fig. 2 and 7, the charging circuit 17 is provided with an output terminal and a plurality of input terminals, each of the input terminals is electrically connected to the coil 82 and the auxiliary coil in a one-to-one correspondence, and the output terminal of the charging circuit 17 is electrically connected to the second battery 14, so that the electric energy generated by the coil 82 and the auxiliary coil is stored in the second battery 14. The voltage adjusting unit 112 is coupled between the second battery 14 and the charging circuit 17, so that the input voltage of the second battery 14 is the corresponding rated voltage.

Referring to fig. 2 and 7, the detecting unit 161 may be configured as an inclination detecting sensor for sensing whether the bracket 2 is inclined, the inclination sensor may be mounted on the housing 5, or may be mounted on the bracket 2 or a corresponding device, and when the housing 5 is inclined to a preset angle, an output end of the inclination sensor outputs a detection signal.

Referring to fig. 2 and 7, an input terminal of the discharge control unit 162 is coupled to an output terminal of the detection unit 161, the discharge control unit 162 responds to the detection signal and outputs a control signal, and the second battery 14 responds to the control signal to reduce the charging efficiency and discharge. The input terminal of the discharging circuit 15 is coupled to the output terminal of the discharging control unit 162, and the output terminal of the discharging circuit 15 outputs an output signal for providing power for the rotation of the wheel 1. So that the output of the discharge circuit 15 can be coupled to some of the coils 82 and in response to the control signal energize each respective coil 82, or the output of the discharge circuit can be coupled to the input of the respective motor, thereby increasing the driving force of the motor.

The implementation principle of the embodiment is as follows: when the wheel 1 rotates, the driven shaft 4 and the mounting plate 9 rotate relative to the support plate 8, so that the coil 82 cuts the magnetic induction line, the coil 82 generates current, the voltage output by the charging circuit 17 is a rated voltage through the voltage adjusting unit 112, and the generated electric energy is stored in the second battery 14, so that the function of generating electricity is realized, and the electricity generating efficiency is high.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A generator for an electric bicycle is arranged on a wheel (1), the wheel (1) is arranged on a bracket (2) of corresponding equipment, the wheel (1) is provided with a rotating shaft (3) which rotates synchronously, the generator is characterized by also comprising a shell (5), a second battery (14) and a charging circuit (17), the shell (5) is fixed on the bracket (2), a support plate (8), a mounting plate (9) and a driven shaft (4) are arranged in the shell (5),

the driven shaft (4) is rotatably connected in the shell (5) and synchronously rotates with the rotating shaft (3);

the support plate (8) and the shell (5) are fixed and sleeved on the driven shaft (4), a plurality of coils (82) used for charging the second battery (14) are arranged on the support plate (8), the coils (82) are distributed along the circumferential direction of the driven shaft (4), each coil (82) is electrically connected with the input end of the charging circuit (17), and the output end of the charging circuit (17) is electrically connected with the second battery (14);

the two mounting plates (9) are arranged and distributed on two sides of the supporting plate (8) along the axial direction of the mounting plates (9), each mounting plate (9) is fixedly sleeved on the driven shaft (4), a plurality of magnets (92) which are distributed along the circumferential direction of the driven shaft (4) and correspond to the coil (82) in position are respectively arranged on each mounting plate (9), the magnets (92) on the two mounting plates (9) are arranged in a one-to-one opposite mode and are opposite in magnetism, and the extending direction between the opposite magnets (92) is parallel to the driven shaft (4);

also comprises a discharge circuit (15) and a switching module (16), the switching module (16) comprises a detection unit (161) and a discharge control unit (162),

a detection unit (161) that outputs a detection signal when the detection unit (161) detects a corresponding environmental signal;

a discharge control unit (162) having an input coupled to the output of the detection unit (161), responsive to the detection signal and outputting a control signal for causing the second battery (14) to reduce the charging efficiency and discharge;

the input end of the discharging circuit (15) is coupled with the output end of the discharging control unit (162), and the output end of the discharging circuit outputs an output signal for providing power for the rotation of the wheel (1);

the detection unit (161) is arranged as an inclination detection sensor for sensing whether the bracket (2) is inclined or not, the inclination sensor is arranged on the shell (5), and when the shell (5) is inclined to a preset angle, the output end of the inclination sensor outputs a detection signal;

still including supplementary module (11) that charges, supplementary module (11) that charges includes auxiliary coil and a plurality of pointed end component (111), and the border of backup pad (8) is inlayed to the one end of each pointed end component (111), and auxiliary coil links to each other with each pointed end component (111), and auxiliary coil still communicates with charging circuit (17)'s input electricity.

2. A generator for electric bicycles, according to claim 1, characterized in that the magnets (92) of each mounting plate (9) are divided into a plurality of magnet groups (18), the magnets (92) of each magnet group (18) are arranged adjacent to each other in sequence, and the magnets (92) of each magnet group (18) have the same magnetism.

3. A generator for electric bicycles, according to claim 2, characterized in that the adjacent sets of magnets (18) are opposite in magnetism.

4. The generator for electric bicycles, according to claim 1, characterized in that the auxiliary charging module (11) further comprises a voltage regulating unit (112) for regulating the input voltage of the charging circuit (17), the voltage regulating unit (112) being electrically connected to the charging circuit (17).

5. The generator for the electric bicycle according to claim 1, wherein one end surface of the support plate (8) is opened with a first mounting groove (81) for embedding the coil (82), and one end surface of each mounting plate (9) is opened with a second mounting groove (91) for embedding the magnet (92).

6. The generator for electric bicycles, according to claim 1, further comprising a transmission unit for adjusting the rotation speed of the driven shaft (4), wherein the transmission unit comprises a driving gear (6) and a driven gear (7) disposed in the housing (5), the driving gear (6) is fixedly sleeved on the rotating shaft (3), and the driven gear (7) is fixedly sleeved on the driven shaft (4) and engaged with the driving gear (6).

7. Generator for electric bicycles, according to claim 6, characterized in that the rotation ratio of the driving gear (6) to the driven gear (7) is 1: 2-1: 40.