Abstract: The country advocates green environmental protection, and new energy electric vehicles emerge at the historic moment. Clean energy is used to replace conventional energy, and will not pollute the natural environment, reduce consumption, and make good use of resources. The use of new energy for automobiles has reduced the cost and brought significant environmental benefits. Therefore, new energy electric vehicles are loved by the general public. However, with the increasing use of new energy electric vehicles, an important problem to be faced is the installation of charging piles. As an infrastructure, it should be installed reasonably and used in a standardized manner to better play its functions. This paper focuses on the research New energy vehicle charging pile Installation and specifications.

Key words: new energy vehicles; Charging pile; Installation; standard

0 Introduction

Nowadays, people's awareness of green environmental protection has increased, especially for daily travel. In order to solve the long-term traffic pollution, they have begun to use new energy vehicles, mainly solar energy and electric energy. The technology of electric vehicles in China has developed for many years and tends to be mature, and the production has formed a certain scale. More and more people choose electric vehicles to travel [1]. However, there must be some problems in the practical application of this new technology, that is, the electric vehicle needs to be charged, and the charging pile is an indispensable infrastructure. Whether it is installed and used in a standardized way directly relates to the future development of new energy electric vehicles. In this study, based on the current situation of the new energy vehicle charging pile, the installation method of the new energy vehicle charging pile is analyzed, and the installation precautions are clarified.

1 Current situation of new energy vehicle charging pile

Although new energy vehicles have been put into use for many years, they are still new. After the charging pile is installed and put into operation, user information should be collected and analyzed in detail, and then feedback information should be optimized. Among them, there are many feedback information from vehicle manufacturers and battery manufacturers, which are mainly reflected in the following four aspects:

First, the continuous working time of new energy trams is not very long.

Second, it takes a long time for the charging pile to fully charge.

Third, the popularity of charging pile facilities needs to be further expanded, and there is obviously a problem that the number of charging piles is too small to meet the demand.

Fourthly, the potential safety problems of charging piles cannot be solved well.

Therefore, the main problem that needs to be faced at present is batteries. Therefore, efforts should be made to research and develop new energy trolley batteries. After the popularization of charging facilities, a large number of new energy trams will be put into use. New energy vehicles in Danian have little proficiency, so their development is positioned at the initial stage. The scale of charging pile construction needs to be constantly expanded, and the cost will be increased in the early stage of construction. This does not conform to the logic of commercial development, and charging pile enterprises will not have confidence in their future development, which is very unfavorable to the large-scale development of new energy vehicles. Therefore, if the new energy vehicle industry wants to achieve better development, it is necessary to do all the work related to the charging pile in place and give play to its dynamic role.

2 Installation method of new energy vehicle charging pile

Electric vehicle charging pile During the installation process, the property management company, the neighborhood committee and the fire department should fully coordinate. The problem to be solved is mainly reflected in that the charging voltage ratio is higher than the daily power consumption voltage of residents, and strong current will be generated, which is likely to affect the normal power consumption of residents in the community and cause abnormal life of residents. Therefore, it is very necessary to reasonably install the charging pile. These hidden dangers should be avoided in the design phase to facilitate property management and prevent fire problems.

In the early stage of the installation of the charging post, after the coordination of all aspects, the funding should be taken into consideration. If the 4S store provides free installation services, there is no need to solve the cost problem. If the installation is independent, it will consume a certain amount of cost, which is mainly reflected in two aspects:

First, the power distribution room needs to redistribute the user's electric energy. Usually, the DC charging pile is 380 V, and the high voltage should be powered separately, which should not be confused with residential electricity. At the same time, a separate switch should be installed. The specific expenditure should take into account the actual situation. After all the work in the preliminary preparation stage is in place, the construction link is started. When installing the charging post, follow the specified steps. The environmental conditions of each residential area are different, the location of the vehicle is different, and the time consumed for installation construction is also different. Some construction conditions are convenient, and the task can be completed in two hours. Some construction will be affected by various factors, and the construction progress is relatively slow, which takes a whole day to complete.

In order to ensure the installation quality, the staff should do a good job in the field survey before the installation construction, communicate with the residents of the community, communicate with the personnel of the property company, have a detailed understanding of the internal situation of the community, and reasonably design the installation and construction of the charging pile. The owner shall communicate with the property management personnel to check the quality and label of the cable, New energy vehicle maintenance Make sure that all indicators meet the requirements before use, and note that the number on the cable should be recorded. When selecting the charging pile model, we should listen to the opinions of new energy vehicle users and determine from the actual situation. The staff should master the type of power supply in the community and can only wire after obtaining the approval of the State Grid.

During the installation and construction of the new energy vehicle charging pile, the staff should first determine the distance between the charging pile and the new energy vehicle, and do a good job of reservation. If the charging port of the new energy vehicle is at the side of the charging pile, this point should be taken into account when installing the charging pile. The distance between the charging pile and the new energy vehicle should be more than 40 cm to ensure that the door opening and closing will not be affected during use. If the charging post is installed at the rear of the new energy vehicle, the distance between the charging post and the new energy vehicle should be more than 50 cm.

During the actual installation and construction, the charging pile and ground infrastructure should be kept at a certain distance to avoid mutual influence. After the installation is completed, the space for maintenance personnel shall be reserved to ensure that the construction location meets the standard. When it needs to be adjusted later, the charging pile will not be damaged [3].

After the installation and construction of the charging pile is completed, the electric vehicle shall be driven to the site for use, and the function test shall be carried out to determine the use of the charging pile. The construction meters shall be observed with eyes, the number on the cable shall be checked, and the cable usage shall be compared. The installation and construction costs can be paid if there is no large deviation gap.

3 Precautions for installation of new energy vehicle charging pile

During the installation of the charging post, the specification should be put in one place. The charging pile has certain risks. If there are installation quality problems, they will inevitably lead to bad consequences. For example, the voltage of the charging device has reached 770 V, which is higher than the 220 V voltage of the household, posing a threat to users; The charging post is not well grounded, which results in unreliable grounding of internal metal parts and electric shock; The plug of the charging gun is not locked, and the electronic lock device is not properly installed. When the user takes the charging plug off during use, the plug is still charged, which is very dangerous; If the sealing property of the charging pile is not good and the waterproof treatment is not done well during the installation, the corrosion prevention effect is not good, which may lead to short circuit and a high incidence of electric shock accidents. Therefore, in the installation of the charging pile, the specification is an important task. On the one hand, it is necessary to maintain the specifications of the staff, and on the other hand, it is necessary to ensure the right of users. During installation and construction, problems will be caused by various uncertain factors, such as rainfall, which will damage the charging pile equipment and seriously threaten human health. Therefore, a rain shelter shall be built within the working area. During the installation of charging piles, the installation system shall be strictly followed, including the supervision of installation personnel and maintenance personnel, so as to standardize their work behavior and make them have a high sense of responsibility. These personnel shall receive regular training to improve their technical level and installation quality.

After the installation of the charging pile is completed and all indicators of the charging pile are qualified through the technical quality inspection, and the charging pile is put into use, it is necessary to do a good job of standardized publicity, spread the operating specifications of the charging pile to all new energy vehicle users, ensure the quality of the charging pile, and avoid dangerous accidents during the use of users.