Output-voltage-adjustable electric vehicle charging pile and charging voltage adjusting method

An output voltage, electric vehicle technology, applied in the direction of electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problem that the voltage cannot be fully identified.

Pending Publication Date: 2020-01-21
浙江宝聚通信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from this that when the number of batteries is 4,

Method used

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  • Output-voltage-adjustable electric vehicle charging pile and charging voltage adjusting method
  • Output-voltage-adjustable electric vehicle charging pile and charging voltage adjusting method
  • Output-voltage-adjustable electric vehicle charging pile and charging voltage adjusting method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example one:

[0034] Such as figure 1 with figure 2 As shown, the electric vehicle charging pile with adjustable output voltage of this embodiment includes a casing and a charging circuit board arranged in the casing; the charging circuit board includes a charging circuit, a main control MCU, and a voltage signal acquisition circuit , Current signal acquisition circuit and PWM signal feedback circuit;

[0035] The model of the master MCU can use some existing processors, for example, the master MCU whose model is STM32429IGTX, please refer to Figure 5 ; As long as it has an existing processor that recognizes the received voltage signal and feeds back the PWM signal containing the voltage information to the PWM signal feedback circuit.

[0036] Refer to figure 1 , The charging circuit includes a transformer T2, and the transformer T2 is connected with an input terminal, a positive output terminal POWEROUT+ and a negative output terminal POWER OUT-. The pin 10 of the transf...

Example Embodiment

[0043] Embodiment two:

[0044] A method of adjusting charging voltage includes the following steps:

[0045] A. The voltage signal acquisition circuit collects the voltage of the electric vehicle battery and sends it to the main control MCU; the main control MCU judges the range of the collected voltage according to the collected voltage signal of the battery pack; if the collected voltage is in the exclusive range of the battery pack voltage , Then directly obtain the voltage specification of the battery pack, and proceed to step B1; if the collected voltage is within the intersection range of the battery pack composed of N single batteries and the battery pack composed of N+1 single batteries, then enter Step B2.

[0046] B1. According to the voltage specification of the battery pack, the main control MCU controls the transformer T2 to adjust to the charging voltage matching the battery pack through the PWM signal feedback circuit.

[0047] B2. The main control MCU controls the tr...

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PUM

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Abstract

The invention provides an output-voltage-adjustable electric vehicle charging pile and a charging voltage adjusting method. The charging voltage can be adjusted according to the voltage specificationof an electric vehicle battery pack. The electric vehicle charging pile comprises a machine case and a charging circuit board arranged in the machine case. The charging circuit board comprises a charging circuit, a main control MCU, a voltage signal collecting circuit, a current signal collecting circuit and a PWM signal feedback circuit. The charging circuit comprises a transformer. The chargingvoltage adjusting method includes the steps that the voltage signal collecting circuit collects the voltage of electric vehicle batteries and sends the voltage to the main control MCU; the main control MCU judges the range of the collected voltage according to the collected voltage signals of the battery pack; and the main control MCU controls the voltage of the transformer T2 to be adjusted to the matched charging voltage of the battery pack through the PWM signal feedback circuit according to the obtained voltage specification of the battery pack. The matched charging voltage is adjusted according to the battery voltage of the electric vehicle, and the voltage specification of the battery pack can be automatically recognized within a cross range.

Description

technical field [0001] The disclosure belongs to the technical field of electric vehicle charging, and in particular relates to an electric vehicle charging pile with adjustable output voltage. Background technique [0002] The electric vehicle charging pile is a device used to charge electric vehicles. The payment is completed by scanning the code, swiping the card or coin, and then plugged into the electric vehicle through the charging connector for charging. When the charging is completed, the charging connector Remove from the electric vehicle charging pile. [0003] At present, there are various voltage specifications for electric vehicle batteries. Depending on the number of single batteries, the voltage specifications of electric vehicle battery packs are also different. The number of electric vehicle batteries on the market is generally composed of 3 to 6 12V batteries; When charging, the charging voltage cannot be adjusted according to the voltage specifications of...

Claims

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Application Information

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IPC IPC(8): B60L53/62B60L58/10
CPCB60L53/62B60L58/10Y02T10/70Y02T10/7072Y02T90/12
Inventor 卢雄峰傅锡才蓝胜胜张剑翔
Owner 浙江宝聚通信息科技有限公司
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