Insulation detection device of DC charging and swapping station

A charging and swapping station and detection device technology, which is applied in the direction of measuring devices, measuring electricity, impedance measurement, etc., can solve the problems of no insulation detection system, large volume, coordination, etc., so as to prevent the risk of artificial electric shock, reduce the occurrence of system failures, and ensure The effect of insulation safety

Inactive Publication Date: 2014-09-10
XJ ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional insulation detection device is bulky and has no function to cooperate with the electric vehicle insulation detection system

Method used

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  • Insulation detection device of DC charging and swapping station
  • Insulation detection device of DC charging and swapping station
  • Insulation detection device of DC charging and swapping station

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Embodiment Construction

[0018] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 and figure 2 Shown is the structural principle diagram of the embodiment of the insulation detection device of the DC charging and swapping station of the present invention. It can be seen from the figure that the device includes an upper balancing branch and a lower Balanced branches, the upper and lower balanced branches are connected in parallel with corresponding upper and lower unbalanced branches, the upper and lower balanced branches and the upper and lower unbalanced branches are connected in series with corresponding balanced circuits or unbalanced circuits, and Each branch is connected in series with a corresponding control switch; the connection point between the upper and lower balanced branches is used to connect to the ground; the device also includes a data detection processing unit for detecting the vo...

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Abstract

The invention discloses an insulation detection device of a DC charging and swapping station. The device is characterized by comprising an upper balancing branch and a lower balancing branch which are sequentially connected in series between an anode busbar and a cathode busbar of a DC system of the charging and swapping station; an upper unbalancing branch and a lower unbalancing branch are respectively correspondingly connected in parallel to the upper balancing branch and the lower balancing branch; corresponding balancing circuits or unbalancing circuits are connected in series to the upper balancing branch, the lower balancing branch, the upper unbalancing branch and the lower unbalancing branch; a corresponding control switch is connected in series to each branch; a connecting point between the upper balancing branch and the lower balancing branch is connected to the ground. The device also comprises a data detecting treating unit for detecting the voltage of the anode busbar and the cathode busbar to ground. According to the insulation detection device of the DC charging and swapping station, the method of mutually switching the balancing circuits and the unbalancing circuits is carried out, the detection device is connected to the DC system to monitor, and thereby the insulation current leakage can be detected, and as a result, the system safety is ensured, the risk of people suffering from an electric shock is prevented, and the system failure probability is reduced.

Description

technical field [0001] The invention belongs to the field of auxiliary equipment for battery swapping of electric vehicles, and in particular relates to an insulation detection device for a DC charging and swapping station. Background technique [0002] The DC charging and swapping station insulation detection device is an insulation testing device suitable for the electric vehicle charging and swapping station system. Since the vehicle-mounted device is equipped with an insulation detection function, it can only detect the insulation of the electric vehicle. The insulation testing device is required for the charging and swapping station system. It is necessary to be able to not start the insulation detection of the charging and swapping station when the electric vehicle insulation detection is started, and at the same time have the function of voltage and current collection. The traditional insulation detection device is bulky and has no function to cooperate with the elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R27/18
Inventor 刘建鹏曹亚孔德原王宁
Owner XJ ELECTRIC
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