Distinction of connector, connector and terminal

Electric vehicle is our favorite means of transportation, for us, the car is our convenient channel. Do you know more about electric vehicles? For you guys, we should be familiar with electric vehicles! After all, the development of electric vehicles is getting better and better. Today, I will tell you about several modes of electric vehicle charging gun.

1、 Use the pulegu household portable charging gun and directly insert it into the 220 V 16A household electric socket. After the automatic safety detection of the charging gun, it can be directly inserted into the electric vehicle for charging, without the need for additional installation of charging pile.

2、 Use pulegu household AC charging pile, directly connected to the 220 V household electricity, and then through the card payment, card charging, direct charging and other ways, you do not need to go to the State Grid to apply for electricity meters.

3、 Go directly to the public DC charging point outside for charging. This charging method can charge 80% within 30 minutes, and can basically be fully charged within 1 hour. However, you need to use the map software to find the public charging point for charging.

Energy saving and environmental protection of electric vehicles has become an inevitable trend in the automotive industry. However, while car companies in various countries are devoting themselves to the development of electric vehicle technology, the charging standard of electric vehicles is also an important factor affecting its popularization. With the increasing support of electric vehicles in various countries, the construction of charging stations is also more and more. Automobile enterprises in various countries have gradually realized that "standard" is the key factor affecting the development prospect of electric vehicles. The small editor of kestar is here to sort out the five major charging connector standards of electric vehicle charging pile in the current market.

After reading the introduction of Xiaobian, do you have a certain understanding of several modes of electric vehicle charging gun! Xiaobian thinks that we should have a good understanding of these contents. After all, cars are our favorite means of transportation. With cars, we can relax our time. Finally, we hope that the introduction of Xiaobian can help you.

In the existing technology, the power connection between the charging pile and the electric vehicle is realized through the charging gun. Generally, the gun head of the charging gun is designed with a handle for holding and pinching. Therefore, the gun head of the whole charging gun is large in volume and heavy in weight. The charging gun is inserted into the fixed slot of the charging pile head and is supported by the gun head of the charging gun, so the burden of the gun head of the charging gun is relatively large.

In addition, if the fixed part of the charging gun head is firmly inserted into the gun head fixing groove, it is easy to cause the gun head to fall to the ground, and the charging gun head has poor sealing performance and poor water resistance after being inserted into the gun head fixing groove.

In addition, if someone steps on or pulls the connecting wire at the interface between the charging gun and the connecting wire, the end of the connection will be cracked. This is the most vulnerable place to be damaged, regardless of any charging line.

Technical implementation elements:

The technical problem to be solved by the utility model is to provide a smaller volume of the charge gun head, separate the handle from the charge gun head, simplify the structure of the charging gun, increase the connection strength between the wire rod and the charging gun, and have a sliding sleeve to reduce the pressure of the charging gun, increase the sealing between the charging gun and the charging pile, and effectively prevent the charging gun from being on the charging pile The problem of falling.

The utility model is realized by the following technical scheme: a charging pile and a charging gun structure of a new energy electric vehicle, including a charging pile and a charging gun, two sides of the charging gun are respectively provided with a sliding sleeve, the two ends of the sliding sleeve are opened, the charging gun penetrates through the sliding sleeve and extends out of the outer end, the tail end of the sliding sleeve is directly opposite to the two sliding grooves, and the corresponding sliding blocks are arranged on the two sliding grooves The sleeve slides in the chute through the sliding block, and a protection bracket is installed at the tail of the charging gun, and the connecting line of the charging gun is clamped into the protection bracket and forms a bending section.

As an optimization, a limit groove is arranged on both sides of the inner wall of the positioning groove, which is perpendicular to the horizontal plane, and the two ends of the sliding sleeve are respectively provided with a limit block, and the two limit blocks are respectively clamped into the limit groove from top to bottom.

As a preferred method, one end of the protection bracket is provided with two fixing sets, the outer end of the protection bracket extends out and is provided with a fixing clip, the connecting line of the charging gun is clamped in the fixing clip, and the bending section is formed between the protection bracket and the fixing clip.

Preferably, the top of the protection bracket is provided with a handle for holding.

The beneficial effects of the utility model are: the utility model has simple structure, can protect the plug of the charging gun through the sliding sleeve, and complete the positioning of the charging gun through the sliding sleeve. The sliding sleeve can effectively increase the sealing property of the plug of the charging gun, increase the waterproof property, and effectively prevent the charging gun from slipping off the charging pile. In addition, the utility model has a protective bracket to better protect the wire rod and charging The connection end of the electric gun increases the service life.

The codes are as follows: 1 is charging pile, 2 is charging gun socket, 3 is limit block, 5 is handle, 7 is protection support, 8 is fixing clamp, 9 is connecting wire, 11 is bending section, 12 is fixing sleeve, 13 is sliding sleeve, 14 is charging gun, 15 is sliding block, 16 is sliding groove.

Specific implementation mode

As shown in Figure 1, the charging pile and charging gun structure of the new energy electric vehicle include charging pile 1 and charging gun 14, two sides of charging gun 14 are provided with a sliding sleeve 16, the head of charging gun 14 is equipped with a sliding sleeve 13, both ends of the sliding sleeve 13 are opened, the charging gun 14 extends out of the outer end through the sliding sleeve 13, and the tail end of the sliding sleeve 13 is directly opposite to the two sliding grooves 16, and the sliding sleeve 13 is provided with corresponding sliding blocks 15 through the sliding sleeve 15 A protection bracket 7 is installed at the tail of the charging gun 14. The connecting line 9 of the charging gun 14 is clamped into the protection bracket 7 and forms a bending section 11.

In this embodiment, the top of the charging pile is arranged in a positioning groove from top to bottom, the positioning groove is directly opposite to the charging gun socket 2 of the charging pile at the bottom, the socket of the charging gun 14 is arranged on the bottom surface of the positioning groove, the sliding sleeve 13 slides into the positioning groove from top to bottom, a limit groove is set on both sides of the inner wall of the positioning groove, the limit groove is vertical to the horizontal plane, and the two ends of the sliding sleeve 13 are respectively provided with a limit block 3, The two limit blocks 3 are movably clamped into the limit slot from top to bottom. The charging gun 14 is installed from the top of the charging pile 1 through the sliding sleeve 13, and then the charging gun retracted in the sliding sleeve is inserted into the socket of the charging gun. The sliding sleeve is used as a sealing element to cover the outside of the charging gun to ensure the sealing and prevent the charging gun from charging The gun socket slips to prevent the charging gun from being fully inserted into the charging gun socket.

In this embodiment, one end of the protection bracket 7 is provided with two fixing sets 12, the outer end of the protection bracket 7 extends out and is provided with a fixing clip 8, the connecting line of the charging gun 14 is clamped in the fixing clip 8, the bending section 11 is formed between the protection bracket 7 and the fixing clip 8, and the top of the protection bracket is provided with a handle 5 for holding and pinching, The buffer can be completed through the bending section, which can effectively protect the connecting line between the charging gun and the charging gun, and increase the service life; in addition, the handle is separated from the charging gun, which can effectively reduce the weight of the charging gun, damage the better protection bracket, and reduce the cost.

The utility model has the following beneficial effects: the utility model has simple structure, can protect the plug of the charging gun through the sliding sleeve, and complete the positioning of the charging gun through the sliding sleeve. The sliding sleeve can effectively increase the sealing of the plug of the charging gun, increase the waterproof property, and effectively prevent the charging gun from slipping off the charging pile, and has a protective bracket, which is better

If you're on a long journey, 150 miles on the road, and start looking for a charging station, you want the nearest charging station to belong to the charging network that you have registered, otherwise you will continue to complete the regular registration process. There are many different power suppliers in Europe, so unless you drive a Tesla with a huge charging network, the chances of finding the right charging station are like buying a lottery ticket, and you need to carefully verify each charging point.

The owners of these charging stations acknowledge that there is a problem and claim that they are doing everything possible to solve the problem, but obviously there is still a lot to do. It's not clear why these charging stations don't have charging piles that only need to swipe credit cards.

AA, the British car rescue group, said the British government had sought to persuade charging station operators to rationalize their systems.

"We need universal, simple and contactless charging networks to make it easier for electric car owners to operate," said Edmund King, President of AA. Early adopters of electric vehicles were not too worried about different charging mechanisms, which is changing as electric vehicles become mainstream. "

King said the British government has hinted that it wants charging companies to provide "roaming solutions" across the entire charging network, so that ev users can use different charging point networks through a single payment method instead of using different smartphone applications.

Professor Stefan bratzel, head of the German car management centre (CAM), said the same problems existed throughout Europe.

Bratzel said there are many charging station service providers in Europe, they need to communicate with each other and make common agreements, and they need some kind of alarm system to show the unusable charging points; in order to avoid unfair charges, and to ensure price transparency, Germany and other European countries must improve on these aspects.

Bratzel said he believes this is the most important challenge facing the popularization of electric vehicles, and as the sales of electric vehicles increase, the problem will become more and more obvious, and if not properly solved, it may have adverse effects on electric vehicle travel. He thinks it will take two to three years to solve the problem completely.

David Bailey, a professor of Business Economics at Birmingham Business School, who also owns an electric car, says that if owners plan to travel long distances, they need to plan ahead to make sure they can recharge properly on the way.

Bailey said the British government should have insisted on universal charging devices, but he was not sure when that would happen. Now there are about eight to 10 different charging networks in the UK. He has a mobile phone with a variety of charging applications and a wallet with various cards, which is very inconvenient for new electric car drivers.

Is this another reason not to buy electric cars?

According to Matt Schmidt, an analyst working in Berlin, in the first half of 2020, the Western European battery powered vehicle market grew by 34.3% in the first half of 2020 compared with the same period in 2019, and the number of vehicles increased to 215711, with a market share of 4.7%. Schmidt predicts that sales of electric vehicles will reach 556000 this year, slightly higher than 1 million in 2021, 1.25 million in 2024 and 1.6 million in 2025.

Novel coronavirus pneumonia was more than 7 thousand and 800 in July 2020, compared with the 26.8% increase in June, according to the statistics of China's electric vehicle charging infrastructure promotion alliance. The industry has been gradually alleviated by the new crown pneumonia epidemic situation. The number of new charging piles has been maintained at nearly 8 thousand levels in the past two months.

Recently, a number of market institutions released reports to review the trend of electric power in the global automobile industry. The report shows that the automobile industry is accelerating to meet the new energy reform from multiple dimensions, and the performance of Chinese enterprises is still in the forefront. In China, the number of charging piles per 100 km has increased from 1.6 in 2017 to 5.4 in 2020.

According to the data of the national development and Reform Commission, by the end of 2019, there are more than 1.2 million charging facilities in China, which is still a short board compared with the 3.8 million new energy vehicles. Construction will continue to accelerate in the future. It is estimated that more than 600000 new charging piles will be built in 2020 alone.

According to the charging mode, charging piles are mainly divided into AC slow charging piles and DC fast charging piles.

AC pile is commonly known as slow filling pile, most of which are built along with the vehicle. The electric vehicle needs to be charged by the vehicle charger, which has low power and slow charging speed, but low cost, which is mostly used for community charging pile. Currently, AC piles still account for about 40% of the newly added public charging piles.

DC pile, commonly known as fast charging pile, directly charges electric vehicles with high power, fast charging speed, but high cost. The power of DC fast charging pile ranges from 30kW to 360kw, which is mainly used in public charging pile. In the case of high-power charging such as buses, the split charging stack is generally used, and the configuration of one machine with four guns is adopted to facilitate the charging of multiple vehicles at the same time.

The internal part of the DC charging pile is relatively complex, so the input electric energy needs to be converted from AC to DC by power module. As the rectifier technology is relatively mature and there are many power module suppliers, it does not constitute a technical barrier.

The industrial chain of charging pile is complete. From construction to operation, it involves charging equipment manufacturers, power supply, site supply and third-party charging platform. The downstream of charging pile involves industrial support, mainly including navigation function support and payment function support.

From the manufacturing side, the charging module is the core equipment at the manufacturing end. After installing power distribution equipment, filters and other devices, the equipment manufacturer forms a charging pile to sell to downstream customers.

As the manufacturing technology of charging pile is less difficult, the main parts are mature standardized electrical products, the industry competition is fierce, and the gross profit rate of products is low.

Charging pile parts are mainly divided into power module, electrical accessories (including circuit breaker, plug, cable, contactor), touch screen and billing system, control board. At present, mainstream charging pile manufacturers, such as treid, star charging, Xuji Electric, etc., can produce power modules and control boards by themselves, and only purchase standardized electrical accessories such as circuit breakers, contactors, cables, etc.

From the manufacturing difficulty of main parts, the technology content of power module is relatively high, and some small and medium-sized manufacturers need to purchase power modules. Due to the large number of suppliers of power modules, the price continues to decline, and it is expected that the price will continue to decline by 5-10% every year in the next three years.

From the operation side, the State Grid and special call manufacturers are the main force in the construction of public charging piles. The "e-charging" project of State Grid encourages private charging piles to enter into the sharing operation field. The threshold for the operation end of charging piles is significantly reduced, which is expected to further promote the construction of charging piles.

At present, the main operators produce charging piles by themselves. Only the State Grid adopts public bidding and the bidding price is relatively high. Therefore, enterprises with stable Bidding Ability in the State Grid bidding will be able to survive in the market. At the same time, the attention to charging safety makes enterprises with better product quality have certain competitive advantages.

By the end of 2019, the total number of charging piles in China has reached 1.22 million, including 520000 public piles and 700000 private piles. Charging facilities have covered 404 cities in China and formed a charging network of "ten vertical, ten horizontal and two rings". The cumulative number of public charging piles built by China Power grid is about 88000, ranking only the third in the industry. The market share of public charging piles in China is mainly accounted for by special telephone (treid subsidiary) 29%, star charging 23%, and State Grid 17%, totaling 69%.

Among the A-share listed companies, the number of operating and charging capacity of treid charging piles ranks first in China, with more than 153000 charging piles in operation. HKUST intelligent has a wide distribution in the field of charging piles, and its main customers include state grid, China Southern Power Grid, major main engine plants, public transportation, real estate, etc. the charging pile for residential reconstruction is also one of the main types of charging pile products of the company. Zhongheng electric masters the core technology of high-power DC charging and maintains close cooperation with core customers such as state grid, Xiaoju charging and State Grid Hengda.

As the power guarantee of new energy vehicles, the construction of charging infrastructure is connected with people's livelihood and how far new energy vehicles can drive; the other end is connected with the industry, which is related to how well the new energy vehicle industry can go.

With the subsidy for new energy vehicles shifting from front-end purchase to back-end charging field, the construction of domestic charging facilities is expected to accelerate again, and the growth elasticity of equipment manufacturers is strong. In the medium and long term, the rapid growth of domestic electric vehicle ownership will release huge charging demand. Subject to the parking space, site and other resources, the construction scale gap of domestic electric vehicle private charging pile will exist for a long time, and the utilization rate of public charging facilities is expected to continue to improve, driving the charging operation to achieve profit improvement.