CN201038813Y - Electric bike regenerative charger - Google Patents

Abstract

A regenerative charger of an electric bicycle belongs to the technical field of regenerative power of electric bicycles. Its purpose not only can make electric bicycle send regeneration electricity and charge the battery, but also simple structure, the cost is low. The three-phase current booster transformer consists of a relay switch (2), a three-phase current booster transformer (3) and a rectifying device (4); the relay switch (2) is connected with the three-phase current step-up transformer (3), and the three-phase current step-up transformer (3) is connected with the rectifying device (4); when the electric bicycle regenerative charger (1) is arranged on an electric bicycle, the relay switch (2) is connected with an electric bicycle motor (6) and a driving controller (7), and the rectifying device (4) is connected with an electric bicycle storage battery (5). The utility model does not need to additionally arrange a group of auxiliary batteries or install a generator, so the structure is simple and the cost is low; meanwhile, the existing electric bicycle is simply and conveniently installed, and the electric bicycle can be applied.

Description

Electric bike regenerative charger

technical field

The utility model belongs to the technical field of regenerative electricity for electric bicycles, in particular to an electric bicycle regenerative electricity charger.

technical background

In order to make the existing electric bicycles travel farther after a single charge, many technical solutions have been proposed, such as the patent No. 03108021.9 "electric bicycle energy regeneration auxiliary power supply", the patent No. 03226966.8 "a new type of electric bicycle", etc. . These technical solutions make the existing electric bicycles travel farther after a single charge and have a positive effect, but there are still some disadvantages, such as the former, it needs to set up a group of auxiliary batteries in addition; A generator is installed at the center of the shaft. Therefore above-mentioned technical scheme will certainly improve the manufacturing cost of electric bicycle substantially.

Contents of the invention

The purpose of this utility model is to provide a regenerative electric charger for electric bicycles, which can not only make electric bicycles generate regenerated electricity to be charged into storage batteries, and make electric bicycles travel farther after one charge, but also has a simple structure and low cost, and at the same time The existing electric bicycle can be conveniently added.

The above-mentioned purpose of the invention is achieved through the following technical solutions, a regenerative electric charger for electric bicycles, its gist is that it consists of a relay switch, a three-phase current step-up transformer, and a rectifier; the relay switch and the three-phase current step-up transformer are in phase Connection, the three-phase current step-up transformer is connected with the rectifier; when the electric bicycle regenerative charger is installed on the electric bicycle, the relay switch is connected with the electric bicycle motor and the drive controller, and the rectifier is connected with the battery of the electric bicycle.

One of the structures of the electric bicycle regenerative charger described above is that the relay switch is composed of a relay coil J, normally open contacts JK1, JK2, JK3, a diode VD7, and a three-terminal regulator IC; the three-phase current step-up transformer consists of a transformer Composed of B1, B2, and B3; the rectifier device is composed of rectifier diodes VD1, VD2, VD3, VD4, VD5, and VD6; the relay coil J and diode VD7 are connected in parallel to two poles of the three-terminal regulator IC; normally open The contacts JK1, JK2, and JK3 are respectively connected to the transformers B1, B2, and B3; the transformers B1, B2, and B3 are connected to the rectifier diodes VD1, VD2, VD3, VD4, VD5, and VD6 to form a three-phase full-wave rectification flow circuit Phase connection; when the electric bicycle regenerative charger is installed on the electric bicycle, one pole connected to the relay coil J, diode VD7, and three-terminal voltage regulator IC, and one pole not connected to the three-terminal voltage regulator IC are connected to the drive control The other poles of the normally open contacts JK1, JK2, and JK3 are respectively connected to the one-phase circuit of the three-phase circuit of the electric bicycle motor; they are connected by rectifier diodes VD1, VD2, VD3, VD4, VD5, and VD6. The positive and negative poles of the three-phase full-wave rectifier circuit are connected to the negative and positive poles of the electric bicycle battery.

When the electric bicycle regenerative charger with the above structure is installed on the electric bicycle, the regenerative charging process is as follows: when the electric bicycle brakes or goes downhill, the power transmission line between the electric bicycle battery and the electric bicycle motor is driven by the drive controller. disconnected, the relay coil J is energized, the normally open contacts JK1, JK2, and JK3 are closed, and the electric bicycle motor is connected to the transformers B1, B2, and B3; because of the inertia of the electric bicycle or the effect of gravity acceleration, the electric bicycle motor still rotates and The current is boosted by transformers B1, B2, and B3, then rectified by a three-phase full-wave rectifier circuit connected by rectifier diodes VD1, VD2, VD3, VD4, VD5, and VD6, and charged into the electric bicycle battery. If the electric bicycle is restarted, the transmission line between the electric bicycle battery and the electric bicycle motor is turned on by driving the controller, the relay coil J loses power, and the normally open contacts JK1, JK2, JK3 return to the normally open state, and the electric bicycle The regenerative charger stopped working.

It can be seen from the above-mentioned structure of the electric bicycle regenerative charger and the description of the regenerative charging process that the utility model does not need to install an additional set of auxiliary batteries or install a generator, and can still make the electric bicycle send regenerative electricity to charge into the storage battery. , so it has a simple structure and low manufacturing cost; at the same time, the utility model can be added to an old electric bicycle; in addition, after the electric bicycle is equipped with the utility model, people's brake operation will become easy.

Description of drawings

Figure 1: a schematic diagram of a specific structure of the utility model

In Figure 1: 1—electric bicycle regenerative charger, 2—relay switch, 3—three-phase current step-up transformer, 4—rectifier, 5—electric bicycle battery, 6—electric bicycle motor, 7——drive controller

Detailed ways

What represented by Fig. 1 is an embodiment of the present utility model, and it is made up of relay switch 2, three-phase current step-up transformer 3, rectifying device 4; Relay switch 2 is made up of relay coil J again, normally open contact JK1, JK2, JK3, diode VD7, and three-terminal regulator IC; three-phase current step-up transformer 3 is composed of transformers B1, B2, and B3; rectifier device 4 is composed of rectifier diodes VD1, VD2, VD3, VD4, VD5, and VD6; relay coil J. The diode VD7 is connected in parallel with two poles of the three-terminal regulator IC; the normally open contacts JK1, JK2, and JK3 are respectively connected to the transformers B1, B2, and B3; the transformers B1, B2, and B3 are connected to the The rectifier diodes VD1, VD2, VD3, VD4, VD5, and VD6 of a three-phase full-wave rectification circuit are connected; One pole connected to the IC, and one pole not connected to the three-terminal regulator IC are connected to the drive controller 7; the other poles of the normally open contacts JK1, JK2, and JK3 respectively correspond to the three-phase circuit of the electric bicycle motor 6 The positive and negative poles of the three-phase full-wave rectification circuit connected by rectifier diodes VD1, VD2, VD3, VD4, VD5, and D6 are connected with the negative and positive poles of the battery 5 of the electric bicycle. The connection of this embodiment can also be an electric motorcycle or an electric tricycle; the motor on them can be a permanent magnet brushless DC motor, or a permanent magnet brushed DC motor; the storage battery on them can be a lead-acid battery, or nickel Hydrogen battery.

This embodiment is simple in structure, low in cost, is installed on the electric bicycle to generate electricity and has good charging effect, and can make the electric bicycle travel farther after one charge.

Claims (2)

1. A regenerative electric charger (1) for an electric bicycle is characterized in that it consists of a relay switch (2), a three-phase current step-up transformer (3), and a rectifier (4); the relay switch (2) is connected to the three-phase The current step-up transformer (3) is connected in phase, and the three-phase current step-up transformer (3) is connected with the rectification device (4); when the electric bicycle regeneration charger (1) is installed on the electric bicycle, the relay switch (2) It is connected with the electric bicycle motor (6) and the drive controller (7), and the rectification device (4) is connected with the electric bicycle battery (5). 2. The electric bicycle regenerative charger (1) according to claim 1, characterized in that the relay switch (2) consists of a relay coil J, normally open contacts JK1, JK2, JK3, a diode VD7, and a three-terminal regulator tube The three-phase current step-up transformer (3) is composed of transformers B1, B2, and B3; the rectification device (4) is composed of rectifier diodes VD1, VD2, VD3, VD4, VD5, and VD6; the relay coil J and diode VD7 are connected in parallel After that, it is connected with two poles of the three-terminal voltage regulator IC; the normally open contacts JK1, JK2, and JK3 are respectively connected to the transformers B1, B2, and B3; the transformers B1, B2, and B3 are connected to form a three-phase full-wave rectifier The rectifier diodes VD1, VD2, VD3, VD4, VD5, and VD6 of the circuit are connected to each other: when the electric bicycle regenerative charger (1) is installed on the electric bicycle, the relay coil J, diode VD7, and three-terminal regulator IC are connected together. One pole, and one pole not connected to the three-terminal regulator IC is connected to the drive controller (7); the other poles of the normally open contacts JK1, JK2, and JK3 are respectively corresponding to the three-phase circuit of the electric bicycle motor (6) The positive and negative poles of the three-phase full-wave rectification circuit connected by rectifier diodes VD1, VD2, VD3, VD4, VD5 and VD6 are connected with the negative and positive poles of the electric bicycle storage battery (5).

Images