CN209240910U - Wireless Charging Pile for Emergency Electric Vehicles on Expressway Based on Wind-solar Complementary - Google Patents

Abstract

The utility model belongs to the technical field of wireless charging, and discloses a wireless charging pile for emergency electric vehicles on highways based on wind and solar complementarity, including a wind power generation device, a photovoltaic power generation device, a controller and a storage battery, and also includes a charging management module and a battery connected to the charging management module. A voltage detection module, the charging management module is used to collect the voltage information of the battery to determine whether the battery has reached the charging voltage, and the voltage detection module is used to send both the voltage information of the wind power generation device and the voltage information of the photovoltaic power generation device to the controller , the controller controls the one with the higher voltage between the wind power generation device and the photovoltaic power generation device to charge the storage battery; Wireless charging device. This scheme makes full use of solar and wind power to generate electricity, and provides emergency charging measures for electric vehicles traveling long distances on expressways for sudden power outages.

Description

Wireless Charging Pile for Emergency Electric Vehicles on Expressway Based on Wind-solar Complementary

technical field

The utility model belongs to the technical field of wireless charging, in particular to a wireless charging pile for emergency electric vehicles on expressways based on wind-solar complementary.

Background technique

With the increasingly serious environmental pollution and the shortage of fossil fuel resources, it is imperative for electric vehicles to replace traditional vehicles. At this stage, my country's electric vehicle market is in a stage of rapid development. However, due to incomplete charging infrastructure and inconvenient charging, electric vehicles often have the problem of insufficient battery life when driving on expressways, which makes the promotion and popularization of electric vehicles limited. hinder. At present, the number of charging piles in my country has exceeded 380,000, of which about one-tenth are in expressway service areas. Moreover, most of these public charging piles on highways use the wired charging method of the municipal power grid, which has many problems such as single power supply, complicated lines, and troublesome charging.

Utility model content

Aiming at the problems existing in the prior art, the utility model provides an emergency wireless charging pile for electric vehicles on the expressway based on wind-solar complementarity, making full use of solar energy and wind energy to generate electricity, and providing emergency measures for charging electric vehicles that are traveling long distances on the expressway for a sudden power failure .

The basic scheme of the utility model: the wireless charging pile for emergency electric vehicles on highways based on wind-solar complementary, including a wind power generation device, a photovoltaic power generation device, a controller and a storage battery, the electric energy generated by the wind power generation device and the electric energy generated by the photovoltaic power generation device are both Converted by the controller to direct current that can charge the storage battery, it also includes a charging management module and a voltage detection module connected to the charging management module. The charging management module is used to collect voltage information of the storage battery to determine whether the storage battery has reached the charging voltage. When the storage battery reaches the charging voltage, the voltage detection module is used to send both the voltage information of the wind power generation device and the voltage information of the photovoltaic power generation device to the controller, and the controller controls the connection between the wind power generation device and the photovoltaic power generation device. The one with the higher voltage charges the battery, and when the battery is fully charged, the charging management module controls to stop charging the battery; the battery is connected to a DC boost module, and the DC boost module is connected to a Wireless charging device for electric vehicle charging.

Further, the charging management module uses CN3768 chip.

Further, the voltage detection module uses PCF8591 chip.

Further, the controller is selected AT89S51 single-chip microcomputer.

Further, the DC boost module uses an XL6009 boost chip.

Further, the storage battery is a lead-acid storage battery.

Compared with the prior art, the utility model has the beneficial effects: 1. The charging pile of the utility model is set in the service area of the expressway. According to the characteristics of the freeway terrain and abundant wind and solar resources, the wind and solar complementary technology is applied to the charging pile. On the one hand, make full use of solar energy and wind energy to generate electricity. When the electric vehicle suddenly loses power during long-distance driving, the electric vehicle can be charged for emergency, and the charging is convenient, the construction cost is low, and the practicability is strong.

2. The controller can automatically detect the voltage and select the power generation circuit. Specifically, by selecting which of the wind power generation device and the photovoltaic power generation device has the higher voltage, the one with the higher voltage can charge the battery, effectively improving energy utilization.

3. This charging pile adopts the wireless charging method as the output method, the charging equipment occupies a small area, and the charging convenience is high. Compared with the traditional DC charging pile charging, the number of electric vehicles that can be charged at the same time is smaller under the same floor area. Improvement, increase space utilization, and avoid line problems that may be caused by traditional DC charging methods due to weather.

Description of drawings

Fig. 1 is a structural block diagram provided by an embodiment of the utility model based on the wind-solar complementary emergency electric vehicle wireless charging pile for expressways.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Below in conjunction with accompanying drawing and specific embodiment the application principle of the present utility model is further described:

The embodiment is based on the example shown in Figure 1: the wind-solar hybrid emergency electric vehicle wireless charging pile on the expressway adopts wind-solar hybrid power generation technology and automobile wireless charging technology to realize charging for electric vehicles traveling long distances on the expressway. In this embodiment, including a wind power generation device, a photovoltaic power generation device, a controller and a storage battery, the electric energy generated by the wind power generation device and the electric energy generated by the photovoltaic power generation device are all converted into DC power capable of charging the storage battery through the controller, wherein the controller selects AT89S51 single-chip microcomputer, the battery chooses lead-acid battery. Specifically, the wind power generation device includes a wind generator and an unloader for converting wind energy into electrical energy, and the converted electrical energy is converted into direct current through an AC/DC converter, and the converted direct current is adjusted by the pulse width regulation PWM of the controller voltage, and then the adjusted voltage is used to charge the battery. The photovoltaic power generation device includes solar photovoltaic panels and brackets, which are used to convert solar energy into electrical energy. The converted electrical energy is converted into direct current through a DC/DC converter. The final voltage is used to charge the battery.

The electric vehicle wireless charging column of the utility model also includes a charging management module and a voltage detection module connected with the charging management module. The charging management module uses a CN3768 chip, and the voltage detection module uses a PCF8591 chip.

The charging management module is used to collect the voltage information of the battery to determine whether the battery has reached the charging voltage. When the battery reaches the charging voltage, the voltage detection module is used to send the voltage information of the wind power generation device and the voltage information of the photovoltaic power generation device to the controller. The controller controls the one with the higher voltage between the wind power generation device and the photovoltaic power generation device to charge the battery. When the battery is fully charged, the charging management module controls to stop charging the battery; the battery is connected to a DC step-up module, and the DC The boost module is connected with a wireless charging device for charging electric vehicles, and the DC boost module uses the XL6009 boost chip.

The wireless charging device includes a power electronic converter, a resonant network, a transmitting coil, a receiving coil, a rectifier and a filter, and a battery load. , rectification filter and battery load are connected once to make it a receiving end, and the wireless charging device uses magnetic coupling and resonance to wirelessly charge the electric vehicle.

The specific implementation process is as follows: when the power of the storage battery reaches the charging voltage, the charging management module will judge that the storage battery needs to be charged, and the voltage detection module will send the voltage information of the wind power generation device and the voltage information of the photovoltaic power generation device to the controller to control The controller will judge which voltage is higher between the wind power generation device and the photovoltaic power generation device. For example, the voltage of the wind power generation device is higher, the controller will connect the relay in the wind power generation device, and the charging module of the wind power generation device will charge the battery. .

When the battery is fully charged, the charging management module controls to stop charging the battery; if the charging management module judges that the battery is in a fully charged state at the beginning, the charging management module directly controls not to charge the battery, that is, the voltage detection module will not send a message to the controller. The voltage information of the wind power generation device and the voltage information of the photovoltaic power generation device; when the battery charges the electric vehicle through the wireless charging device, when the battery power drops to a certain level, that is, the battery reaches the charging voltage, and the above charging process is repeated.

The charging pile of the utility model is set in the service area of the high-speed highway, fully utilizes the favorable terrain around the highway, and completes the storage of electric energy by means of wind and solar complementary power generation, and is used for emergency situations such as sudden power failures during long-distance driving of electric vehicles.

Since the wind-solar hybrid wireless charging pile uses batteries as energy storage components, but batteries have rated capacity, it is impossible to charge and store unlimited energy. Therefore, the two charging sources of wind power generation devices and photovoltaic power generation devices are controlled. The controller combines charging The management module and the voltage detection module are used to control the on-off of the charging circuits of the two charging sources.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (6)

1. The wireless charging pile for emergency electric vehicles on highways based on wind and solar complementarity, including wind power generation devices, photovoltaic power generation devices, controllers and batteries, and the electric energy generated by the wind power generation devices and photovoltaic power generation devices are converted into The direct current that can charge the storage battery is characterized in that it also includes a charging management module and a voltage detection module connected to the charging management module. The charging management module is used to collect voltage information of the storage battery to determine whether the storage battery reaches the charging voltage. When the When the battery reaches the charging voltage, the voltage detection module is used to send both the voltage information of the wind power generation device and the voltage information of the photovoltaic power generation device to the controller, and the controller controls the voltage between the wind power generation device and the photovoltaic power generation device The higher one charges the storage battery, and when the storage battery is fully charged, the charging management module controls to stop charging the storage battery; the storage battery is connected to a DC boost module, and the DC boost module is connected to a motor Wireless charging device for car charging. 2. The emergency electric vehicle wireless charging pile for expressways based on wind-solar hybridization according to claim 1, wherein the charging management module uses a CN3768 chip. 3. The emergency electric vehicle wireless charging pile for expressways based on wind-solar hybridization according to claim 1, wherein the voltage detection module uses a PCF8591 chip. 4. The emergency electric vehicle wireless charging pile for expressways based on wind-solar hybridization according to claim 1, wherein the controller is an AT89S51 single-chip microcomputer. 5. The emergency electric vehicle wireless charging pile for expressways based on wind-solar hybridization according to claim 1, wherein the DC boost module uses an XL6009 boost chip. 6. The emergency electric vehicle wireless charging pile for expressways based on wind-solar hybridization according to claim 1, wherein the battery is a lead-acid battery.