CN104908578A - Hub power generation device for bicycle and bicycle with same - Google Patents

Abstract

The invention provides a hub power generation device of a bicycle, which comprises a generator set, a standby power supply and a transmission assembly, wherein the generator set is arranged on a hub of a bicycle wheel and used for converting mechanical energy generated by the bicycle wheel into electric energy; the standby power supply is connected with the generator set; the transmission assembly is arranged in an integrated mode, one end of the transmission assembly is fixedly arranged on a hub of the bicycle wheel, and the other end of the transmission assembly is connected to the generator set. Because the hub power generation device of the bicycle comprises the generator set, the transmission assembly and the standby power supply, and the generator set and the transmission assembly are integrally arranged, when an installer installs the hub power generation device, the installer only needs to directly install and fix the generator set and the transmission assembly, and when the installer dismantles the hub power generation device, the installer only needs to dismantle the generator set and the transmission assembly, so that the hub power generation device is simple, quick, easy and convenient. The invention also provides a bicycle.

Description

Hub power generation device for bicycle and bicycle with same

technical field

The invention relates to the technical field of bicycles, in particular to a hub power generation device for a bicycle and a bicycle with the device.

Background technique

At present, many technicians try to install generators on bicycles in order to convert the kinetic energy generated during cycling into electric energy, and store the electric energy for power supply of external electronic devices. But at present, the power generation devices of bicycles mainly include hub-type power generation devices and chain-type power generation devices. Among them, the hub-type power generation devices are complicated to install, difficult to disassemble, difficult to install by non-professionals, and there are many potential safety hazards in this kind of power generation devices; The conventional power generation device is not only cumbersome to install, but also prone to loosening and chain jams after installation. At the same time, its power generation is small and its service life is short.

Therefore, it is necessary to provide a technical means to solve the above defects.

Contents of the invention

The purpose of the present invention is to overcome the defects of the prior art and provide a hub power generation device for bicycles to solve the problems of troublesome assembly and disassembly, many safety hazards and short service life of the bicycle power generation device in the prior art.

The present invention is achieved in this way, a bicycle wheel hub power generation device, including a generator set arranged on the hub of the bicycle wheel to convert the mechanical energy generated by the bicycle wheel into electrical energy, and to generate The backup power supply for storing the electric energy is used to transmit the mechanical energy generated by the bicycle wheels to the transmission assembly of the generator set, and the generator set is integrated; the backup power supply is connected to the generator set; The transmission assembly is integrally arranged, and one end of the transmission assembly is fixed on the hub of the bicycle wheel, and the other end of the transmission assembly is connected to the generator set.

Specifically, the transmission assembly includes a transmission housing, a transmission gear pair arranged inside the transmission housing, and a first connection connecting the transmission gear pair and provided outside the transmission housing to connect with the generator set gear;

The generator set is equipped with a second connecting gear correspondingly meshing with the first connecting gear.

Further, the speed change gear pair includes a first speed change gear fixed on the transmission housing and a second speed change gear meshed with the first speed change gear, the number of teeth of the first speed change gear is greater than that of the first speed change gear The number of teeth of the second speed gear.

Further, the transmission assembly further includes a first waterproof ring arranged between the outside of the transmission housing and the first connecting gear to prevent liquid water from entering the interior of the transmission housing.

Further, the transmission housing includes a rear casing and a front baffle connected and fixed to the rear casing to open the interior of the rear casing.

Preferably, the transmission assembly further includes a second waterproof ring arranged between the rear housing and the front baffle to prevent liquid water from entering the transmission housing.

Further, the hub of the bicycle wheel is provided with a positioning rod extending outward, and the transmission housing is provided with a positioning hole that is plugged and fitted with the positioning rod, and the transmission assembly is connected to the positioning rod through the positioning rod. The plug-in hole is positioned on the hub of the bicycle wheel.

Specifically, the generator set is arranged on the transmission casing, which includes a power generation casing, a generator disposed inside the power generation casing, an output shaft passing through the generator and arranged in the power generation casing to provide The PCB board that is electrically connected to each component of the generator set and the power interface provided on the generator casing for power supply output;

The output shaft of the generator is inserted into the second connecting gear.

Specifically, the backup power supply includes a power supply housing, an inverter arranged inside the power supply housing for converting alternating current into low-voltage direct current, a charge and discharge protector, and an inverter installed on the power supply housing for supplying The USB socket where the USB cable plugs in.

The technical effect of the bicycle hub power generation device of the present invention is: since the bicycle hub power generation device of the present invention includes a generator set, a backup power supply, and a transmission assembly, and the generator set and the transmission assembly are integrated, the installer installs the hub power generation When installing, you only need to directly install and fix the generator set and transmission components, and when disassembling, you only need to remove the generator set and transmission components, which is simple, quick, easy and convenient. Then, when the bicycle user steps on the bicycle, the wheel of the bicycle will rotate and the wheel will drive the hub power generation device on the hub to work, and the specific work of the hub power generation device is: the transmission assembly receives the force transmitted by the wheel Afterwards, it will transmit the active force to the generator set to make the generator set generate electricity, and the electric energy generated by the generator set will be transmitted to the backup power supply and stored by the backup power supply. And the power supply of this standby power supply can be used as the power supply device of bicycle lighting lamp, traffic warning lamp and indicator light, bicycle electronic alarm, MP4, MP3, mobile phone, etc., green and environmental protection, energy-saving and practical.

The present invention also provides a bicycle, which has the above-mentioned wheel hub power generation device of the bicycle and a supporting accessory set for making the bicycle user travel safely. The backup power supply of the hub power generating device is connected to the matching accessory set. Wherein, by disposing the hub power generation device on the bicycle, the kinetic energy generated by the bicycle can be effectively and reasonably converted into electric energy, so as to avoid waste of energy. Moreover, the hub power generating device can be directly installed on the hub of the bicycle, and the operation is simple and convenient. At the same time, the electric energy generated by the hub power generation device can effectively supply the supporting accessories, such as lights, indicator lights, warning lights, alarms, etc., which is green and environmentally friendly and ensures the safe driving of bicycle users.

Description of drawings

Fig. 1 is a schematic diagram of a hub power generation device of a bicycle according to an embodiment of the present invention being arranged on a bicycle wheel;

Fig. 2 is the schematic diagram of the hub power generation device of the bicycle of the embodiment of the present invention;

Fig. 3 is a schematic diagram of another angle of Fig. 2;

4 is an exploded view of the transmission assembly of the hub power generation device of the bicycle according to the embodiment of the present invention;

Fig. 5 is an exploded diagram of the generator set of the hub power generation device of the bicycle according to the embodiment of the present invention;

Fig. 6 is a schematic diagram of the backup power supply of the hub power generation device of the bicycle according to the embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Please refer to Fig. 1 and Fig. 2, and in conjunction with Fig. 6, the present invention provides a kind of hub power generation device 10 of bicycle, comprises the generator set 11 that is arranged on the hub of bicycle wheel 20 in order to convert the mechanical energy that bicycle wheel 20 produces into electric energy , the backup power supply 13 used to store the electric energy produced by the generator set 11 and the transmission assembly 12 used to transmit the mechanical energy generated by the bicycle wheel 20 to the generator set 11, the following will further describe the components of the hub power generator 10 of the bicycle description of:

The generator set 11 is integrated to simplify the installation and use of the user.

The backup power supply 13 is connected to the generator set 11, and the backup power supply 13 includes a power supply housing 131, an inverter (not shown in the figure) installed inside the power supply housing 131 for converting alternating current into low-voltage direct current, and located in the power supply The USB socket 132 on the casing 131 is used for inserting the USB cable. Preferably, the USB socket 132 is a double USB socket, as shown in FIG. 6 .

The transmission assembly 12 is integrally provided to simplify the installation and use of the user, and one end of the transmission assembly 12 is fixed on the hub of the bicycle wheel 20 , and the other end of the transmission assembly 12 is connected to the generator set 11 .

Because the hub power generation device 10 of the bicycle of the present invention includes a generator set 11 and a transmission assembly 12, and the generator set 11 and the transmission assembly 12 are both integrated. When the installer installs the hub power generating device 10 on the bicycle, he only needs to directly install the hub power generating device 10 on the hub of the front wheel or the rear wheel of the bicycle; It can be removed from the bicycle, which is simple, fast, easy and convenient.

Then, when the bicycle user steps on the bicycle, the wheel of the bicycle will rotate and the wheel will drive the hub power generation device on the hub to work, and the specific work of the hub power generation device is: the transmission assembly receives the force transmitted by the wheel Afterwards, it will transmit the active force to the generator set to make the generator set generate electricity, and the electric energy generated by the generator set will be transmitted to the backup power supply and stored by the backup power supply. And the power supply of this standby power supply can be used as the power supply device of bicycle lighting lamp, traffic warning lamp and indicator light, bicycle electronic alarm, MP4, MP3, mobile phone, etc., green and environmental protection, energy-saving and practical.

Please refer to FIG. 4 , the transmission assembly 12 includes a transmission housing 121 , a transmission gear pair 122 arranged inside the transmission housing 121 and a first connection gear connected to the transmission gear pair 122 and arranged outside the transmission housing 121 for connecting with the generator set 11 123; wherein, by configuring the speed change gear pair 122, when the transmission assembly 12 transmits the mechanical energy generated by the wheels 20 to the generator set 11, the mechanical energy can be transmitted to the generator set 11 at a variable speed and speed, and the mechanical energy can be optimally reduced losses during transmission.

Preferably, the generator set 11 is equipped with a second connecting gear 113 correspondingly meshed with the first connecting gear 123 , thus, the generator set 11 is connected to the transmission assembly 12 through the meshing of the first connecting gear 123 and the second connecting gear 113 . connect.

When the in-wheel power generator 10 is working, the mechanical energy generated by the wheel 20 will be directly transmitted to the transmission assembly 12, and the transmission assembly 12 will first change the speed of the mechanical energy through the transmission gear pair 122, and then pass the mechanical energy through the first The connecting gear 123 and the second connecting gear 113 are transmitted to the generator set 11, and then the generator set 11 converts the received mechanical energy into electrical energy and stores it.

Specifically, the transmission gear pair 122 includes a first transmission gear 1221 fixed on the transmission housing 121 and a second transmission gear 1222 meshing with the first transmission gear 1221 , the number of teeth of the first transmission gear 1221 is greater than that of the second transmission gear 1222 Therefore, when the speed change gear pair 122 shifts gears, the transmission of mechanical energy is accelerated through the conversion of the different numbers of teeth of the first speed change gear 1221 and the second speed change gear 1222, which simply and conveniently improves the transmission efficiency of mechanical energy.

Please continue to refer to FIG. 4 , the transmission assembly 12 also includes a first waterproof ring 124 located between the outside of the transmission housing 121 and the first connecting gear 123 to prevent liquid water from entering the interior of the transmission housing 121, so as to avoid the passage of liquid water or other liquids. The gap between the transmission housing 121 and the first connection gear 123 enters the inside of the transmission housing 121 .

Please continue to refer to FIG. 4 , in order to facilitate the assembly personnel to install parts such as the transmission gear pair 122 of the transmission assembly 12 on the transmission housing 121, preferably, the transmission housing 121 includes a rear housing 1211 and a rear housing 1211 for connection and fixing. to open the front baffle 1212 inside the rear case 1211.

Further, the transmission assembly 12 also includes a second waterproof ring 125 arranged between the rear housing 1211 and the front baffle 1212 to prevent liquid water from entering the interior of the transmission housing 121, so as to prevent liquid water or other liquids from passing through the rear housing The gap between 1211 and the front baffle 1212 enters the inside of the transmission housing 121 .

Please refer to FIG. 1 and in conjunction with FIG. 2 , the hub of the bicycle wheel 20 is provided with an outwardly extending positioning rod 21 , and the transmission housing 121 is provided with a positioning hole 1210 that is plugged and fitted with the positioning rod 21 , and the transmission assembly 12 passes through the positioning rod 21 The insertion with the positioning hole 1210 is positioned on the hub of the bicycle wheel 20, and through the insertion between the positioning rod 21 and the positioning hole 1210, the transmission assembly 12 is simply and effectively fixed on the hub of the bicycle wheel 20, It is convenient for installers to fix the transmission assembly 12 .

Please refer to FIG. 3 , in order to facilitate processing and obtaining materials, the transmission assembly 12 of the present invention is connected and fixed on the hub of the bicycle wheel 20 through screws 127 .

Please refer to FIG. 5 , specifically, the generator set 11 is arranged on the transmission casing 121, which includes a power generation casing 111, a generator 112 arranged inside the power generation casing 111, an output shaft passing through the generator 112 and being arranged on the power generation casing 111. To provide the PCB board 114 electrically connected to the components of the generator set 11 and the power interface 116 provided on the power generation casing 111 for power output, wherein the PCB board 114 is arranged on the PCB board fixing seat 115, so as to fix the PCB board 114 and Protect the PCB board 114, and then pass through the output shaft of the generator 112;

The output shaft of the generator 112 is inserted into the second connecting gear 113 so that the generator 112 can quickly receive the mechanical energy transmitted by the second connecting gear 113 .

Below in conjunction with the drawings, the working principle of the hub power generation device 10 of the bicycle of the present invention will be further described:

When the in-wheel power generator 10 is working, the mechanical energy generated by the wheel 20 will be directly transmitted to the transmission assembly 12, and the transmission assembly 12 will first change the speed of the mechanical energy through the transmission gear pair 122, and then pass the mechanical energy through the first The connecting gear 123 and the second connecting gear 113 are transmitted to the generator 112, and then the generator 112 converts the received mechanical energy into electrical energy, and the generated electrical energy will be sent to the backup power supply 13 and stored by it for use , such as increasing the power supply for bicycle lights, bicycle electronic alarms, MP4, MP3, mobile phones and other power supply devices.

The present invention also provides a bicycle, which has the above-mentioned wheel hub power generation device of the bicycle and a matching accessory set (not shown in the figure) for making the bicycle user travel safely. The backup power supply of the hub power generating device is connected to the matching accessory set. Specifically, the supporting accessory set includes lights, indicator lights, warning lights, alarms, etc. In other words, as long as the accessories that ensure the safe driving of the bicycle user also belong to the protection scope of the supporting accessory set of this embodiment.

Wherein, by disposing the hub power generation device on the bicycle, the kinetic energy generated by the bicycle can be effectively and reasonably converted into electric energy, so as to avoid waste of energy. Moreover, the hub power generating device can be directly installed on the hub of the bicycle, and the operation is simple and convenient. At the same time, the electric energy generated by the hub power generation device can effectively supply the supporting accessories, such as lights, indicator lights, warning lights, alarms, etc., which is green and environmentally friendly and ensures the safe driving of bicycle users.

The above description is only a preferred embodiment of the present invention, and its structure is not limited to the shapes listed above. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in this document. within the scope of protection of the invention.

Claims (10)

1. A wheel hub generator for a bicycle, characterized in that it comprises: A generator set installed on the hub of the bicycle wheel to convert the mechanical energy generated by the bicycle wheel into electrical energy, the generator set is integrated; a backup power source for storing electrical energy generated by the generating set, the backup power source being connected to the generating set; and Used to transmit the mechanical energy generated by the bicycle wheel to the transmission assembly of the generator set, the transmission assembly is integrated, and one end of the transmission assembly is fixed on the hub of the bicycle wheel, the transmission The other end of the assembly is connected to the generator set. the 2. The wheel hub power generation device of bicycle according to claim 1, characterized in that: the transmission assembly includes a transmission housing, a transmission gear pair arranged inside the transmission housing, and a transmission gear pair connected to the transmission housing and arranged in the The first connecting gear outside the transmission casing is used to connect with the generator set; The generator set is equipped with a second connecting gear correspondingly meshing with the first connecting gear. the 3. The hub power generator for a bicycle according to claim 2, wherein the speed change gear pair includes a first speed change gear fixed on the transmission housing and a second speed change gear meshed with the first speed change gear. Two speed change gears, the number of teeth of the first speed change gear is greater than the number of teeth of the second speed change gear. the 4. The hub power generation device of a bicycle according to claim 2, characterized in that: the transmission assembly further includes a power supply provided between the outside of the transmission housing and the first connecting gear to prevent liquid water from entering the transmission. The first waterproof ring inside the casing. the 5 . The hub power generation device of a bicycle according to claim 2 , wherein the transmission casing includes a rear casing and a front baffle connected and fixed to the rear casing to open the interior of the rear casing. 6 . the 6. The hub power generation device of a bicycle according to claim 5, wherein the transmission assembly further includes a motor that is arranged between the rear housing and the front baffle to prevent liquid water from entering the transmission housing. Internal second waterproof ring. the 7. The wheel hub power generation device of bicycle as claimed in claim 2, characterized in that: the wheel hub of the bicycle wheel is provided with a positioning rod extending outwards, and the transmission housing is provided with a plug-fitting joint with the positioning rod The positioning hole, the transmission assembly is positioned on the hub of the bicycle wheel through the insertion of the positioning rod and the positioning hole. the 8. The wheel hub power generation device of a bicycle according to any one of claims 2-7, characterized in that: the generator set is arranged on the transmission casing, which includes a power generation casing, a power generation casing arranged inside the power generation casing The machine, the output shaft of the generator and the PCB board provided on the generator housing to provide electrical connections for the various components of the generator set and the power interface provided on the generator housing for power output; The output shaft of the generator is inserted into the second connecting gear. the 9. The wheel hub power generation device of a bicycle according to claim 1, wherein the backup power supply includes a power supply housing, an inverter arranged inside the power supply housing for converting alternating current into low-voltage direct current, A charge and discharge protector, and a USB socket provided on the power supply housing for plugging in a USB cable. the 10. A bicycle, characterized in that: it has the hub power generation device of any one of claims 1-9 and a set of supporting accessories for making bicycle users travel safely, the backup power supply of the hub power generation device is connected with the The matching accessory set described above is connected. the