CN207549975U - A kind of high-power charging station system - Google Patents

Abstract

The utility model discloses a kind of high-power charging station system, including centralized power module, charging terminal and power transmission cable.Centralized power module is transmitted electricity by power transmission cable to charging terminal, and charging terminal includes charging pile, cable cooling equipment and the cold charging gun of liquid, the cold charge cable of liquid.Charging gun is connected to by the cold charge cable of liquid on charging pile, and cable cooling equipment is arranged in charging terminal, and cable cooling equipment includes liquid pump, radiator and accessory.The cold charging gun of liquid, the cold charge cable of liquid and liquid pump form liquid-cooling circulating system.The cable cooling equipment of the utility model is arranged in charging terminal rather than computer room（Centralized power module is generally in computer room）, can high degree reduction difficulty of construction, without cooling pipe is arranged in underground, without using the power transmission cable that liquid is cold, without using more powerful radiator and liquid pump.

Description

A high-power charging station system

technical field

The utility model relates to a high-power charging station system.

Background technique

The arrangement of traditional independent charging piles and split charging stations includes three elements: 1. Centralized power module: used to convert the AC power of the grid into DC power for electric vehicle charging, usually set in the machine room; 2. Charging terminal: Including the charging gun and charging cable, as well as the bracket used to hang these components, usually placed next to the parking space; 3. Power transmission cable: the cable that electrically connects the centralized power module and the charging terminal, usually buried underground.

In order to solve the high-power charging of electric vehicles, the car can use cables and charging guns with liquid cooling function. The advantage of using liquid-cooled cables instead of conventional cables is that liquid-cooled cables reduce the required cross-sectional area. Therefore, the flexibility of the cable can be greatly improved, the weight can be greatly reduced, and it is more suitable for manual operation. Liquid-cooled cables require corresponding cooling equipment (liquid pumps and radiators) to work properly. These components can be placed in a separate charging pile to directly cool the cables and charging gun.

In contrast, split charging stations are less compatible with liquid-cooled cables. If the cooling radiator and the liquid pump are placed in the machine room with the centralized power supply module, the cooling liquid pipeline needs to be buried underground in parallel with the power transmission cable, resulting in a large engineering effort. If it is to transform the existing ordinary charging station, the cost is high. Simultaneously, if the cooling pipeline also cools the power transmission cable together, the length of the underground cable is long and the calorific value is large, so the power of the radiator required by the cable is relatively large, and the cost is relatively high. In addition, the circulation path of the cooling liquid is long, and the requirements for the liquid pump are relatively high.

Utility model content

The main purpose of the utility model is to provide a high-power charging station system with low cost and convenient installation and use.

In order to solve the above technical problems, the high-power charging station system provided by the utility model includes a centralized power supply module, a charging terminal and a power transmission cable. The centralized power supply module transmits power to the charging terminal through the power transmission cable. The charging terminal includes a charging pile, A cable cooling device, a liquid-cooled charging gun, and a liquid-cooled charging cable, the charging gun is connected to the charging pile through a liquid-cooled charging cable, the cable cooling device is arranged in the charging terminal, and the cable The cooling equipment includes a liquid pump, a radiator and accessories. The liquid-cooled charging gun, the liquid-cooled charging cable and the liquid pump form a liquid-cooled circulation system, wherein the liquid pump provides the cooling liquid circulation driving force of the liquid-cooled circulation system, and the The heat sink dissipates heat from the liquid-cooled charging cable.

Preferably, the liquid-cooled charging gun has pins, and the pins include a plug connector and a connector. The end of the connector facing away from the insertion direction is provided with a coolant flow channel for the connector and a plug-in inner interface is formed on the end surface, and a connector communicated with the coolant flow channel of the connector is opened on the connector Coolant interface. The connecting piece has a base, on which a coolant interface of the connecting piece is provided, and a crimping hole is opened inwardly at one end of the base, and the crimping hole is used for accommodating a cable connected with the connecting piece. The other end of the base is provided with a connecting part cooling liquid pipe which communicates with the connecting part cooling liquid port, and a connecting inner port is formed on the end surface of the base part.

The connector and the connector are connected together, wherein the coolant pipe of the connector is arranged in the coolant channel of the connector, and a gap flow channel is formed between the coolant channel of the connector and the wall of the coolant channel.

The coolant interface of the connector, the gap flow channel, the coolant pipe of the connector and the coolant interface of the connector are connected to form a flow channel for the circulation of the coolant, and the inner interface of the plug is electrically connected with the inner interface of the connection and communicates with the coolant. The runner is sealed and insulated.

Preferably, one end of the connector facing away from the insertion direction is provided with a fixing groove inwardly, and the fixing groove communicates with the cooling liquid flow channel, the width of the fixing groove is larger than the width of the cooling liquid flow channel, and the The base of the connector is provided with one end of the coolant pipe of the connector to be narrowed so as to be fixed in the fixing groove.

Preferably, the plugging inner interface of the socket is flat, and the connecting inner interface of the connecting piece is flat.

Preferably, the contact connection between the plugging inner interface of the plug connector and the connecting inner interface of the connector is welding, threaded connection, sealing ring sealing or interference fit of the two.

Preferably, the surface of the socket on which the coolant interface of the socket is opened is a plane.

Preferably, the surface of the base on which the coolant interface of the connector is provided is a plane.

Preferably, insulating oil flows in the passage through which the cooling liquid flows.

Preferably, liquid cooling water flows in the channel through which the cooling liquid flows, and the inner wall of the channel through which the cooling liquid flows is insulated.

The utility model high-power charging station system includes a centralized power supply module, a charging terminal and a power transmission cable. The cable cooling device is arranged in the charging terminal. The cable cooling device includes a liquid pump, a radiator and accessories, a liquid-cooled charging gun, a liquid-cooled The charging cable and the liquid pump form a liquid cooling circulation system, and the cable cooling equipment is arranged in the charging terminal instead of the equipment room (the centralized power supply module is generally located in the equipment room), which can greatly reduce the difficulty of construction, and there is no need to arrange cooling pipes in the equipment room. Underground, there is no need for liquid-cooled power cables, more powerful radiators and liquid pumps. Therefore, the system cost of the high-power charging station of the utility model is relatively low, and the installation and use are convenient.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model high-power charging station system;

Fig. 2 is a schematic structural view of the connector of the utility model pin;

Fig. 3 is a schematic diagram of a longitudinal section structure of the connector shown in Fig. 2;

Fig. 4 is a structural schematic diagram of the connector of the utility model pin;

Fig. 5 is a schematic diagram of the longitudinal section structure of the connector shown in Fig. 2;

Fig. 6 is a three-dimensional structural schematic diagram of the utility model after the pin assembly is completed;

Fig. 7 is a schematic diagram of the longitudinal section structure of the pin shown in Fig. 6;

FIG. 8 is a structural schematic view of another angle longitudinal section of the pin shown in FIG. 6 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to FIG. 1 , the high-power charging station system of the present invention includes a centralized power supply module A, a charging terminal B and a power transmission cable C.

The centralized power supply module A transmits power to the charging terminal B through the power transmission cable C, and the charging terminal B includes a charging pile, a cable cooling device B1, a liquid-cooled charging gun, and a liquid-cooled charging cable B2. The charging gun is connected to the charging pile through a liquid-cooled charging cable, and the cable cooling equipment is arranged in the charging terminal. The cable cooling equipment includes a liquid pump, a radiator and accessories. The liquid-cooled charging gun, the liquid-cooled charging cable and the liquid pump form a liquid-cooled circulation system, wherein the liquid pump provides a driving force for cooling liquid circulation of the liquid-cooled circulation system, and the radiator dissipates heat to the liquid-cooled charging cable.

Please refer to FIG. 2 and FIG. 3 , preferably, the liquid-cooled charging gun has pins, and the pins include a plug connector 10 and a connector 20 .

The connector 10 is roughly cylindrical, and the end of the connector 10 facing away from the insertion direction is provided with a connector coolant flow channel 11 inwardly and a plug-in inner interface 12 is formed on the end surface. The socket coolant interface 13 communicated with the socket coolant channel 11 .

Please refer to Figure 4 and Figure 5, the connector 20 has a base 21, the base 21 is provided with a connector coolant interface 22, and one end of the base 21 is opened with a crimping hole 23 inward, and the crimping hole 23 is used to receive and connect with it. cables (not shown). The other end of the base 21 is provided with a connector coolant pipe 24 communicating with the connector coolant port 22 and a connection inner port 25 is formed on the end surface of the base.

Please refer to FIG. 6, FIG. 7 and FIG. 8 again. When the pins are assembled, the connector 10 and the connector 20 are connected together, wherein the connector coolant pipe 24 is arranged in the connector coolant flow channel 11, In addition, a gap flow channel t is formed between the cooling liquid pipe 24 of the connector and the wall of the cooling liquid flow channel of the socket.

The coolant interface 13 of the connector, the gap flow channel t, the coolant pipe 24 of the connector, and the coolant interface 22 of the connector communicate to form a flow channel for the circulation of the coolant, and the plug inner interface 12 forms an electrical connection with the connection inner interface 25 The flow channel that communicates with the coolant is sealed and insulated.

As a further improvement of this embodiment, the walls of the flow channels through which the cooling liquid flows are all formed with insulation,

As a further improvement of this embodiment, the end of the connector 10 facing away from the insertion direction is provided with a fixing groove 14 inwardly, the fixing groove 14 communicates with the coolant flow channel 11 of the connector, and the width of the fixing groove 14 is larger than that of the plug connector. The width of the cooling liquid channel 11 of the connecting part 20 is provided with the base part 21 of the connecting part 20 and the outer surface of one end of the connecting part cooling liquid pipe is narrowed to be fixed in the fixing groove 14 .

As a further improvement of this embodiment, the plugging inner interface 12 of the plug connector 10 is a plane, and the connecting inner interface 25 of the connector 20 is a plane.

As a further improvement of this embodiment, the contact connection between the insertion inner interface 12 of the plug connector 10 and the connection inner interface 25 of the connector 20 is welding, threaded connection, sealing ring sealing or interference fit of the two.

As a further improvement of this embodiment, the surface of the socket 10 on which the socket coolant interface 13 is opened is a plane.

As a further improvement of this embodiment, the surface of the base portion 21 on which the coolant interface 22 of the connector is provided is a plane.

As a further improvement of this embodiment, insulating oil flows in the passage through which the cooling liquid flows.

As a further improvement of this embodiment, liquid cooling water flows in the channel through which the cooling liquid flows, and the inner wall of the channel through which the cooling liquid flows is insulated.

The utility model also provides a charging gun, which is provided with the above-mentioned insertion pin. Since the charging gun adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned corresponding embodiments, and will not repeat them here.

The pin includes a plug connector 10 and a connector 20. The connector coolant interface 13, the gap flow channel t, the connector coolant pipe 24 and the connector coolant interface 22 communicate to form a flow channel for coolant circulation. The coolant takes away the heat emitted by the pins, which can automatically reduce the temperature of the pins, thereby increasing the current-carrying capacity of the charging gun and ensuring the stability and reliability of high-power charging.

The high-power charging station system of the utility model includes a centralized power supply module A, a charging terminal B and a power transmission cable C, and the cable cooling equipment is arranged in the charging terminal B, and the cable cooling equipment includes a liquid pump, a radiator and accessories, and liquid-cooled charging The gun, liquid-cooled charging cable and liquid pump form a liquid-cooled circulation system, and the cable cooling equipment is arranged in the charging terminal instead of the equipment room (the centralized power supply module is generally located in the equipment room), which can greatly reduce the construction difficulty and eliminate the need for The cooling pipes are arranged underground, eliminating the need for liquid-cooled transmission cables, and the need for more powerful radiators and liquid pumps.

For the existing non-high-power charging stations, the total power of the modules is very high, and it also has the ability to output high power to a certain terminal, but due to the low carrying capacity of the charging gun and the cable, high-power charging cannot be realized. However, by arranging the cable cooling device on the charging terminal, and installing the cable cooling device, liquid-cooled charging gun, and liquid-cooled charging cable on the charging terminal, high-power charging can be realized on the charging terminal without re-arranging the liquid. cold pipes. Therefore, the system cost of the high-power charging station of the utility model is relatively low, and the installation and use are convenient.

The above are only preferred embodiments of the present utility model, and are not therefore limiting the patent scope of the present utility model. Under the utility model concept of the utility model, the equivalent structural transformations made by utilizing the specification of the utility model and the contents of the accompanying drawings, or directly Or indirectly used in other relevant technical fields are all included in the patent protection scope of the present utility model.

Claims (8)

1. a kind of high-power charging station system, including centralized power module, charging terminal and power transmission cable, the centralization electricity Source module is transmitted electricity by power transmission cable to charging terminal, and the charging terminal, which includes charging pile, cable cools down equipment and liquid is cold fills The cold charge cable of electric rifle, liquid, the charging gun are connected to by the cold charge cable of liquid on charging pile, and the cable cools down equipment cloth It is placed in the charging terminal, including liquid pump, radiator and accessory, the cold charging gun of the liquid, the cold charge cable of liquid and liquid pump shape Into liquid-cooling circulating system, wherein, liquid pump provides the coolant cycle driving force of liquid-cooling circulating system, and the radiator is cold to liquid to be filled Electric wire cable radiates.

2. high-power charging station system as described in claim 1, which is characterized in that the cold charging gun of liquid has contact pin, institute Contact pin is stated to include：

One plug connector, the plug connector inwardly offer plug connector cooling liquid flowing channel and in the end face away from one end of plugging direction Grafting inner joint is formed with, the plug connector coolant connected with the plug connector cooling liquid flowing channel is offered on the plug connector and is connect Mouthful；

A connection piece, the connector have base portion, the base portion be equipped with connector coolant connection, described base portion one end to It inside offers and crimps hole, to accommodate the cable being connect with connector in the crimping hole, the base portion other end is equipped with connecting Part coolant connection connection connector coolant duct and be formed with connection inner joint in the base portion end face；

The plug connector links together with connector, wherein, it is cold that the connector coolant duct is set to the plug connector But in liquid stream road, and gap runner is formed between the connector coolant duct and plug connector cooling liquid flowing channel wall, it is described Plug connector coolant connection, gap runner, connector coolant duct connect to form cooling liquid stream with connector coolant connection Logical runner, the runner sealing that the grafting inner joint forms electrical connection and circulate with the coolant with connecting inner joint are exhausted Edge.

3. high-power charging station system as claimed in claim 2, which is characterized in that the plug connector deviates from the one of plugging direction End inwardly offers fixing groove, and the fixing groove is connected with cooling liquid flowing channel, and the width of the fixing groove is more than the coolant The width of runner, the base portion of the connector be equipped with connector coolant duct one end outer surface cut it is narrow described solid to be fixed on Determine in slot.

4. high-power charging station system as claimed in claim 2, which is characterized in that the grafting inner joint of the plug connector is flat Face, the connection inner joint of the connector is plane.

5. high-power charging station system as claimed in claim 2, which is characterized in that the grafting inner joint of the plug connector and company The contact connectio of the connection inner joint of fitting is welding, threaded connection, sealing ring seals or the two interference fit.

6. high-power charging station system as claimed in claim 2, which is characterized in that it is cold to offer plug connector on the plug connector But the face of liquid interface is plane.

7. high-power charging station system as claimed in claim 2, which is characterized in that the base portion is equipped with connector coolant The face of interface is plane.

8. high-power charging station system as claimed in claim 2, which is characterized in that circulate in the runner of the coolant circulation There is insulating oil.