CN203063705U - Electro-mobile solar electricity-saving range extender - Google Patents

Abstract

The utility model provides a solar power-saving range extender for electric vehicles, which belongs to the field of electric vehicles. The range extender includes a solar cell assembly, a solar converter, a diode, a power battery pack, a main power switch, an electric vehicle controller and a power motor, wherein the positive output of the solar cell assembly is connected to the positive input of the solar converter, and the solar The output negative pole of the battery module is connected to the input negative pole of the solar energy converter; the output positive pole of the solar energy converter is connected to the positive pole of the diode, the negative pole of the diode is connected to the input positive pole of the power battery pack, and the output negative pole of the solar power converter is connected to the power battery The input negative pole of the power battery pack; the positive output pole of the power battery pack is connected to the power input positive pole of the electric vehicle controller through the main power switch, and the output negative pole of the power battery pack is connected to the power input negative pole of the electric vehicle controller; the power vehicle controller is connected to The power motor thus improves the battery life and power saving capability of the electric vehicle.

Description

Electric vehicle solar power saving range extender

technical field

The utility model relates to the field of electric vehicles, in particular to a solar power-saving range extender for electric vehicles.

Background technique

The power source of electric vehicles and the battery life of power batteries have become a bottleneck in the development of electric vehicles. The power batteries of existing electric vehicles include lithium batteries, lead-acid batteries, fuel cells, etc., and their battery life is still insufficient for a single charge. To meet the requirements of use, and the charging of the above-mentioned power sources is inconvenient. With the rise of prices, the increase in electricity prices is also inevitable. These have further affected the promotion of electric vehicles. Therefore, it is necessary to propose a power-saving device for increasing the mileage of the electric vehicle, which can effectively improve the battery life and power-saving capability of the power source of the electric vehicle.

Utility model content

The utility model aims to solve the technical problems existing in the prior art, and particularly innovatively proposes a solar power-saving range extender for electric vehicles, which improves the endurance and power-saving capabilities of electric vehicles.

In order to achieve the above purpose of the utility model, the utility model provides a solar power-saving range extender for an electric vehicle, which includes a power battery pack, and is characterized in that it also includes a solar cell assembly and a solar converter, wherein the solar cell assembly The positive pole of the solar cell group is connected to the positive pole of the solar energy converter, and the negative pole of the solar cell group is connected to the negative pole of the solar energy converter;

The positive pole of the solar converter is connected to the positive pole of the power battery pack, and the negative pole of the solar converter is connected to the negative pole of the power battery pack. The utility model adopts the solar cell assembly to improve the battery life and power saving capacity of the electric vehicle.

The electric vehicle solar power-saving range extender also includes a diode, the anode of the solar converter is connected to the anode of the diode, and the cathode of the diode is connected to the anode of the power battery pack. The utility model adopts a diode, and in the case of no light, due to the reverse characteristic of the diode, the electric energy of the power battery pack can be prevented from flowing back to the solar converter, thereby preventing the solar converter from consuming the power of the power battery pack.

The electric vehicle solar energy-saving range extender also includes a main power switch, an electric vehicle controller and a motor, wherein the positive pole of the power battery pack is connected to the positive pole of the electric vehicle controller through the power main switch, and the power battery pack The negative pole of the electric vehicle controller is connected to the negative pole of the electric vehicle controller; the electric vehicle controller is connected to the motor. The utility model adopts the main power switch. When there is light, no matter whether the main power switch K1 on the electric vehicle is turned on or off, the power battery pack will be charged until there is no light or when the power battery pack is fully charged. will stop.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

1. The utility model adopts solar cell components to improve the battery life and power saving ability of electric vehicles;

2. The utility model adopts a diode. In the case of no light, due to the reverse characteristic of the diode, the electric energy of the power battery pack can be prevented from flowing back to the solar converter, thereby preventing the solar converter from consuming the power of the power battery pack;

3. The utility model adopts the main power switch. In the case of light, no matter whether the main power switch K1 on the electric vehicle is turned on or off, the power battery pack will be charged until there is no light or the power battery pack is fully charged. charging will stop.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is the schematic circuit diagram of the utility model.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In the description of the present utility model, unless otherwise stipulated and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, or it can be The internal communication between two elements may be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

As shown in Figure 1, the electric vehicle solar power-saving range extender includes a solar cell assembly E, a solar converter, a diode D1, a power battery pack, a main power switch K1, an electric vehicle controller and a power motor, wherein the solar cell assembly The output positive pole of E is connected to the input positive pole of the solar energy converter, and the output negative pole of the solar cell module E is connected to the input negative pole of the solar energy converter; the output positive pole of the solar energy converter is connected to the positive pole of the diode D1, and the negative pole of the diode D1 is connected to The input positive pole of the power battery pack, and the output negative pole of the solar energy converter is connected to the input negative pole of the power battery pack; the output positive pole of the power battery pack is connected to the power input positive pole of the electric vehicle controller through the main power switch K1, and the power The output negative pole of the battery pack is connected to the power input negative pole of the electric vehicle controller; the power vehicle controller is connected to the power motor.

The solar cell module E converts the optical signal into an electrical signal and outputs it to the solar converter. The solar converter converts the electrical signal into the voltage and current required by the power battery pack and charges the power battery pack. The power battery pack provides power to the electric vehicle controller. , The electric vehicle controller is used to control the speed and power of the power motor. In addition, the diode D1 is used to prevent the electric energy of the power battery pack from flowing back to the solar converter, so as to prevent the solar converter from consuming the power of the power battery pack; the main power switch K1 is used to control the power supply of the power battery pack on and off.

In the first embodiment of the present utility model, the solar cell assembly E is formed by connecting several solar cells in series; the diode D1 is designed inside the solar converter; It is formed in series; the main power switch K1 is the main power switch on the electric vehicle; the motor controller and the power motor are respectively the motor controller and the power motor on the electric vehicle; the area of the solar cell module E is about three square meters.

The working principle of the utility model is: in the case of no light, the output voltage of the solar cell assembly E is zero, and the output voltage of the solar converter is also zero, thus causing the charging current of the power battery pack to be zero. Directional characteristics, the solar converter will not consume the power of the power battery pack.

In the case of light, the solar cell module E outputs a non-zero voltage, and the solar converter converts the electrical signal into the voltage and current required by the power battery pack, and charges the power battery pack through the diode D1:

a. Regardless of whether the main power switch K1 on the electric vehicle is turned on or off, the power battery pack will be charged, and the charging will not stop until there is no light or the power battery pack is fully charged.

b. Regardless of whether the electric vehicle is running or stopped, solar charging will be carried out. When driving, the charging current of solar energy and the output current of the power battery pack are used together as the power supply driving current of the motor controller and power motor, and are provided to the vehicle for driving, that is, driving current = charging current of solar energy + output current of the power battery pack; stop At this time, the charging current of solar energy enters the power battery pack for storage.

c. When the mains grid is used to charge the power battery pack, the charging current of the solar energy and the charging current of the mains grid are used as the charging current of the power battery pack, that is, the total charging current = solar charging current + mains grid charging current. As a result, solar charging can increase battery life by 10-30% per day.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (3)

1. A solar power-saving range extender for electric vehicles, comprising a power battery pack, characterized in that: it also includes a solar cell assembly and a solar converter, wherein the positive pole of the solar battery assembly is connected to the positive pole of the solar converter, and the The negative pole of the solar cell group is connected to the negative pole of the solar energy converter; The positive pole of the solar converter is connected to the positive pole of the power battery pack, and the negative pole of the solar converter is connected to the negative pole of the power battery pack. 2. The solar power-saving range extender for electric vehicles according to claim 1, further comprising a diode, the anode of the solar converter is connected to the anode of the diode, and the cathode of the diode is connected to the anode of the power battery pack. 3. The solar energy-saving range extender for electric vehicles according to claim 1 or 2, characterized in that: it also includes a main power switch, an electric vehicle controller and a motor, wherein the positive pole of the power battery pack passes through the main power switch The positive pole of the electric vehicle controller is connected, and the negative pole of the power battery pack is connected with the negative pole of the electric vehicle controller; the electric vehicle controller is connected with the motor.

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