TWI673187B - Charging device for vehicle and vehicle - Google Patents

Abstract

The invention discloses a charging device for a vehicle and a vehicle. The charging device includes: a charging connector, the charging connector includes: a casing and a terminal, the terminal is disposed in the casing; and a cooling chamber is fixed to the cooling chamber. On the casing; a charging wire harness, which is connected to the connection terminal; a cooling pipe, which is in communication with the cooling chamber and is in contact with the charging wire harness. Therefore, by providing a cooling chamber and a cooling pipeline, the temperature of the terminal and the charging harness can be effectively reduced, thereby avoiding the problem of overheating of the terminal and ensuring the charging safety of the vehicle.

Description

Vehicle charging device and vehicle

The present invention relates to the technical field of vehicles, and in particular, to a charging device for a vehicle and a vehicle having the same.

At present, due to energy and environmental issues, the explosive growth of electric vehicles has been promoted, and the number of new energy vehicles has also continued to rise. Compared with traditional fuel vehicles, electric vehicles have great advantages in energy conservation and environmental protection, but long charging cycles of electric vehicles have long been criticized.

At present, increasing the charging power to shorten the charging time is widely used. The following problems are: due to the excessive current, the terminals at the charging socket are seriously heated, which causes the terminals to burn out or charge failures, so that the entire vehicle cannot be charged normally, and the charging safety cannot be effectively guaranteed.

In addition, although some manufacturers are actively adopting some methods to reduce the temperature at the connection terminals, for example, arranging a cooling device at the charging harness, the cooling effect is not ideal and the arrangement is more complicated.

The present invention aims to solve at least one of the technical problems in the related technology. For this reason, the present invention proposes a vehicle charging device, which can effectively reduce the temperature of the connection terminal and can ensure the charging safety of the vehicle.

The invention further provides a vehicle.

A charging device for a vehicle according to the present invention includes a charging connector including a housing and a terminal block disposed in the housing, a cooling chamber fixed to the housing, and charging. A wire harness, the charging wire harness being connected to the connection terminal; a cooling pipe, the cooling pipe communicating with the cooling chamber and contacting the charging wire harness.

Therefore, according to the vehicle charging device of the present invention, by providing a cooling chamber and a cooling pipe, the temperature of the terminal and the charging harness can be effectively reduced, thereby avoiding the problem of overheating of the terminal, and ensuring the charging safety of the vehicle.

In some examples of the present invention, the cooling chamber is fixed on the rear surface of the casing, and the cooling chamber is in contact with the rear end of the connection terminal.

In some examples of the invention, the cooling chamber is adhesively connected to the rear surface of the casing.

In some examples of the present invention, the cooling chamber is sleeved on the outer periphery of the casing.

In some examples of the present invention, an escape groove is formed on the outer periphery of the casing, and the cooling chamber is sleeved in the escape groove and the outer peripheral surface is flush with the outer peripheral surface of the casing.

In some examples of the present invention, the cooling chamber is sleeved on the outer periphery of the casing and is also fixed on the rear surface of the casing.

In some examples of the present invention, the cooling line is wound around at least the charging harness.

In some examples of the present invention, the cooling pipe includes a plurality of pipe sections in the same extension direction as the charging wire harness, and adjacent pipe sections are bent and arranged.

In some examples of the present invention, the charging device further includes a heat dissipation body, a cooling channel is formed in the heat dissipation body, a mounting seat is provided on the heat dissipation body, the charging connector is mounted on the mounting seat, and the cooling pipe The passage communicates with the cooling flow path.

In some examples of the invention, a portion of the cooling runner is located within the mount.

In some examples of the present invention, the heat dissipating body includes: an inlet pipe, a plurality of intermediate pipes, and an outlet pipe, the plurality of intermediate pipes communicate between the inlet pipe and the outlet pipe, and one end of the cooling pipe is connected to the inlet pipe The other end is connected to the intermediate pipe or the outlet pipe, and the cooling chamber is connected in series to the cooling pipe.

In some examples of the present invention, the intermediate pipe includes: a pipe body having a cooling flow channel formed therein; and a fin disposed on an outer peripheral wall of the pipe body.

A vehicle according to the present invention includes: the charging device of the vehicle; a cooling system, and the cooling chamber is in communication with the cooling system.

In some examples of the present invention, the cooling system includes a pump body, a heat exchanger, and a liquid storage tank, and the pump body, the heat exchanger, the liquid storage tank, the cooling pipeline, and the cooling chamber are connected in series.

In some examples of the present invention, the vehicle further includes: a plug-in detection member and an electric control module, the plug-in detection member is used to detect a plug-in state of the charging gun inserted into the charging connector, and the electric control module and The plug detection member is electrically connected and controls the pump body to work after receiving the charging gun plug completion signal.

1‧‧‧shell

2‧‧‧Terminals

10‧‧‧ Charging socket

11‧‧‧Avoidance trough

20‧‧‧cooling room

21‧‧‧import

22‧‧‧Export

23‧‧‧ perforation

30‧‧‧Charging harness

40‧‧‧cooling pipeline

50‧‧‧Thermal body

51‧‧‧Mount

52‧‧‧ Into the tube

53‧‧‧Intermediate tube

54‧‧‧ Out

60‧‧‧Sealing ring

100‧‧‧ charging device

200‧‧‧cooling system

210‧‧‧Pump

220‧‧‧Heat exchanger

230‧‧‧ liquid storage tank

240‧‧‧ Screening Program

300‧‧‧Plug detection

400‧‧‧electric control module

500‧‧‧ Distribution Module

531‧‧‧tube body

532‧‧‧ fins

600‧‧‧Charging pile

610‧‧‧ Rechargeable gun

FIG. 1 is a schematic diagram of the docking of a charging connector and a charging gun of a charging device according to an embodiment of the present invention; FIGS. 2, 3 and 5 are exploded views of a charging device according to an embodiment of the present invention; FIG. Is a schematic diagram of a cooling chamber in the charging device shown in FIG. 3; FIG. 6 is a schematic diagram of a cooling chamber in the charging device shown in FIG. 5; Fig. 7 is a cross-sectional view of the cooling chamber shown in Fig. 6; Figs. 8 and 9 are schematic views of the charging connector being mounted on the mounting base of the heat dissipation body, respectively.

An embodiment of the present invention is described in detail below, and an example of the embodiment is shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

A charging device 100 for a vehicle according to an embodiment of the present invention is described in detail below with reference to the drawings.

As shown in FIG. 2, FIG. 3, and FIG. 5, the charging device 100 for a vehicle according to an embodiment of the present invention may include a charging connector, a cooling chamber 20, a charging harness 30, and a cooling line 40. The charging connector may be For the charging socket 10, the charging socket 10 includes a housing 1 and a connection terminal 2, wherein the connection terminals 2 are arranged in pairs, for example, there may be two connection terminals 2. The connection terminal 2 is disposed in the housing 1. The housing 1 can play a role of installing and fixing the connection terminal 2, and the housing 1 can also play a role of insulation.

The cooling chamber 20 is fixed on the casing 1 so that the cooling chamber 20 can directly contact the casing 1. When the charging socket 10 is docked with the charging gun 610 of the charging post 600 to charge the vehicle's power battery, the cooling chamber 20 can be effectively used. Take away the heat of the housing 1 and the terminal 2 so that the working temperature of the terminal 2 can be reduced, the problem of overheating of the terminal 2 can be avoided, and the charging safety of the vehicle can be guaranteed. In addition, the housing 1 can solve the problem of fixing the cooling chamber 20. The cooling chamber 20 may be filled with a cooling medium, and the cooling medium may also flow. For example, the cooling chamber 20 is provided with an inlet 21 and an outlet 22. The cooling medium may enter the cooling chamber 20 from the inlet 21 and then flow out from the outlet 22. The cooling medium may be a cooling liquid.

The charging harness 30 is connected to the connection terminal 2. For example, when there are two connection terminals 2, the charging harness 30 may be two. The two charging harnesses 30 are connected to the two connection terminals one by one, and the charging harness 30 may be connected at the connection. A current is transmitted between the terminal 2 and the power battery. The charging harness 30 may be a high-voltage harness. The connection terminal 2 may include a positive connection terminal and a negative connection terminal for transmitting current. This terminal 2 is suitable for DC charging port.

Similarly, the charging terminals of the AC charging port also appear in pairs, which may be plural. The principle is the same as above, and can still be implemented.

The cooling line 40 is in communication with the cooling chamber 20, and the cooling line 40 is in contact with the charging harness 30. Therefore, the cooling pipeline 40 can be used to cool the charging harness 30, so that the temperature of the charging harness 30 can be effectively reduced, the temperature of the charging harness 30 can be prevented from being high, and the charging safety of the vehicle can be ensured. Moreover, the cooling pipe 40 is connected to the cooling chamber 20, so that the structure of the charging device 100 can be simplified. The cooling pipe 40 and the cooling chamber 20 can share a cooling source, thereby reducing the cost of the charging device 100 and reducing the charging device 100. volume of.

Therefore, according to the vehicle charging device 100 according to the embodiment of the present invention, by providing the cooling chamber 20 and the cooling pipe 40, the temperature of the terminal 2 and the charging harness 30 can be effectively reduced, thereby avoiding the problem of overheating of the terminal 2 Can ensure the safety of vehicle charging.

According to an optional embodiment of the present invention, as shown in FIG. 2, the cooling chamber 20 is fixed on the rear surface of the casing 1, wherein the cooling chamber 20 may be provided with a perforation, and the perforation may be used for the connection terminal 2 or charging. The wire harness 30 passes through, wherein the crimping point of the connection terminal 2 and the charging wire harness 30 is arranged in the cooling chamber 20 so that the cooling chamber 20 can assume a part of the function of the housing. The end of the housing 1 facing the charging harness 30 is the rear end, and the end remote from the charging harness 30 is the front end.

The cooling chamber 20 is in contact with the rear end of the connection terminal 2, that is, the front surface of the cooling chamber 20 can be in contact with the rear surface of the housing 1, so as to ensure the contact area between the cooling chamber 20 and the housing 1, In addition, the cooling chamber 20 can also be in direct contact with the connection terminal 2, thereby further improving the ability of the cooling chamber 20 to reduce the connection terminal 2, which can effectively avoid the problem of overheating of the connection terminal 2, and can ensure the charging safety of the vehicle.

Specifically, the cooling chamber 20 is adhesively connected to the rear surface of the casing 1. Adhesive connection can ensure that the cooling chamber 20 and the casing 1 are reliably fixed on the one hand, and can improve the assembly efficiency of the charging device 100 on the other.

According to another optional embodiment of the present invention, as shown in FIG. 3, the cooling chamber 20 is sleeved on the outer periphery of the casing 1. Therefore, the cooling chamber 20 can be reliably fixed, and the contact area between the cooling chamber 20 and the housing 1 can meet requirements, so that the cooling ability of the cooling chamber 20 to the connection terminal 2 can be ensured.

Among them, as shown in FIG. 3, the avoidance groove 11 is formed on the outer periphery of the housing 1, and the cooling chamber 20 is set in the escape groove 11 so that the outer peripheral surface of the cooling chamber 20 is flush with the outer peripheral surface of the housing 1. In this way, the cooling chamber 20 can be reasonably arranged, and the overall structure of the charging device 100 is more reliable. In addition, as shown in FIG. 4, the front end of the cooling chamber 20 can be opened, so that when the cooling chamber 20 is set at the avoidance groove 11, the housing 1 can serve as a cover for the front end, thereby ensuring that the cooling chamber 20 and the Mounting reliability of the casing 1.

In addition, as shown in FIG. 4, the inlet 21 and the outlet 22 of the cooling chamber 20 can be provided on the same side, so that the cooling medium can be easily entered and exited, and a partition can be provided between the inlet 21 and the outlet 22, so that A good loop of the cooling medium between the inlet 21 and the outlet 22 of the cooling chamber 20 is ensured, so that the ability of the cooling chamber 20 to take away the heat of the terminal 2 can be ensured.

According to still another alternative embodiment of the present invention, as shown in FIG. 5 and FIG. 6, the cooling chamber 20 is sleeved on the outer periphery of the casing 1, and the cooling chamber 20 is further fixed to the rear surface of the casing 1. on. That is to say, the cooling chamber 20 is not only in contact with the outer periphery of the casing 1, but also with the rear surface of the casing 1, that is, in the axial direction (that is, the front-rear direction), the cooling chamber 20 corresponds to the terminal 2, the terminal 2 and charging. One of the crimping point of the wiring harness 30 and the charging wiring harness 30, which can effectively increase the contact area between the cooling chamber 20 and the housing 1, can better reduce the temperature of the terminal 2, and can ensure the installation of the cooling chamber 20 reliability.

Among them, there are various arrangements of the cooling pipe 40.

According to an alternative embodiment of the present invention, as shown in FIG. 2, FIG. 3, and FIG. 5, the cooling pipe 40 is wound at least around the connection between the charging harness 30 and the connection terminal 2, so that the cooling pipe It can be effectively wound around the connection between the terminal 2 and the charging harness 30, and can effectively correspond to the casing 1 and the cooling chamber 20, so that the overall cooling capacity of the charging device 100 can be improved. The cooling pipes 40 arranged around are convenient to arrange on the one hand, on the other hand, the contact area between the cooling pipes 40 and the charging harness 30 can be increased, and the ability of the cooling pipes 40 to cool the charging harness 30 can be improved. The cooling pipe 40 may be a flat tube, so that the flat tube can be effectively wound around the charging harness 30. In addition, a sealing ring 60 may be provided at the charging harness 30, and the sealing ring 60 can effectively seal the cooling chamber 20, thereby improving the safety of the use of the cooling chamber 20.

According to another optional embodiment of the present invention, the cooling pipeline 40 includes a plurality of pipeline sections that extend in the same direction as the charging harness 30, and adjacent pipeline sections are bent and arranged. The pipeline section can extend in the same direction as the charging harness 30, so that the pipeline section can contact the charging harness 30, so that the cooling medium in the pipeline section can effectively remove the heat at the charging harness 30.

The charging device 100 for a vehicle according to an embodiment of the present invention may further include: a heat dissipation body 50, a cooling flow channel is formed in the heat dissipation body 50, a mounting seat 51 is provided on the heat dissipation body 50, and the cooling pipe 40 communicates with the cooling flow channel. The charging socket 10 is mounted on the mounting base 51. Among them, a part of the cooling flow path is located in the mounting seat 51, that is, the cooling flow path on the heat dissipation body 50 flows through the mounting seat 51, so that the cooling medium in the cooling flow path can be carried out with the charging socket 10 at the mounting seat 51 The heat exchange can effectively reduce the temperature of the charging socket 10, can reduce the temperature of the terminal 2 of the charging socket 10, can avoid the phenomenon of overheating of the terminal 2, and can further ensure the reliability of the operation of the charging device 100, Charging safety.

Optionally, as shown in FIG. 8 and FIG. 9, the heat dissipating body 50 includes: an inlet pipe 52, a plurality of intermediate pipes 53, and an outlet pipe 54. The plurality of intermediate pipes 53 are connected between the inlet pipe 52 and the outlet pipe 54, and are cooled. One end of the pipeline 40 is connected to the inlet pipe 52, and the other end of the cooling pipeline 40 is connected to the intermediate pipe 53 or the outlet pipe 54. The cooling chamber 20 is in communication with the cooling pipeline 40. Therefore, the plurality of intermediate pipes 53 can share one inlet pipe 52 and one outlet pipe 54, which can make the heat dissipation body 50 simple in structure and easy to arrange. Moreover, the heat-dissipating body 50 provided in this way can also ensure the smoothness of the flow of the cooling medium inside each intermediate pipe 53.

The cooling medium in the mounting seat 51 can flow to the intermediate pipe 53. For example, the upper end of the cooling channel in the mounting seat 51 is connected to the inlet pipe 52, and the lower end thereof can be connected to the plurality of intermediate pipes 53. Surrounded by a plurality of intermediate tubes 53. In this way, the inflow and outflow of the cooling medium in the mounting seat 51 can be ensured, so that the cooling medium in the mounting seat 51 can effectively cool the charging socket 10.

Among them, as shown in FIGS. 8 and 9, the upper end of the mounting base 51 communicates with the inlet pipe 52, and the lower end of the mounting base 51 communicates with the plurality of intermediate pipes 53. Therefore, a part of the cooling medium can directly enter the mounting base 51 after flowing out of the inlet pipe 52, and is carried out with the charging connector 30 at the mounting base 51. Heat exchange can effectively reduce the temperature of the connection terminals of the charging connector 30, and the cooling medium flowing out of the mounting seat 51 can flow into the intermediate pipe 53. In addition, one mounting seat 51 can correspond to a plurality of intermediate pipes 53 at the same time, thereby ensuring the smooth flow of the cooling medium.

Specifically, as shown in FIGS. 8 and 9, the plurality of intermediate pipes 53 are disposed perpendicularly to the inlet pipe 52 and the outlet pipe 54. In this way, the intermediate pipe 53 can be installed in the vertical direction, and the inlet pipe 52 and the outlet pipe 54 can be horizontally installed, so that the cooling medium flow in the intermediate pipe 53 can be ensured, and the inlet pipe 52 and the outlet pipe 54 can be simultaneously and plurally The middle pipe 53 corresponds.

Optionally, as shown in FIG. 8, the intermediate pipe 53 includes a pipe body 531 and a fin 532. A cooling channel is formed in the pipe body 531, and the fin 532 is disposed on an outer peripheral wall of the pipe body 531. The arrangement of the pipe body 531 can allow the cooling medium to flow between the inlet pipe 52 and the outlet pipe 54. The arrangement of the fins 532 can increase the heat dissipation area of the pipe body 531, which can facilitate the installation seat 51 and the charging socket 10 to be replaced better. heat.

As shown in FIG. 1, a vehicle according to an embodiment of the present invention may include the charging device 100 and the cooling system 200 of the vehicle of the above embodiment, and the cooling chamber 20 communicates with the cooling system 200. As a result, cooling water can flow in the cooling chamber 20, and the vehicle can control the opening of the cooling system 200 when the vehicle is charged, so that the working temperature of the charging socket 10 can be effectively reduced.

Specifically, as shown in FIG. 1, the cooling system 200 may include a pump body 210, a heat exchanger 220, and a liquid storage tank 230, a pump body 210, a heat exchanger 220, a liquid storage tank 230, a cooling pipe 40, and a cooling system. The chambers 20 are connected in series, wherein the pump body 210 is connected to the heat exchanger 220, the liquid storage tank 230 is connected to the heat exchanger 220, and the liquid storage tank 230 is also connected to the cooling flow path, and the cooling flow path is also connected to the pump body 210. Thus, the pump body 210 can work when the charging socket 10 and the charging gun 610 on the charging pile 600 are docked, thereby pumping the cooling liquid into the cooling channel, the cooling pipe 40 and the cooling chamber 20, so that the cooling channel is cooled and connected. Terminal 2 and charging harness 30. The cooling system 200 further includes: a screening program 240, which is disposed between the pump body 210 and the heat exchanger 220, and the screening program 240 can play a filtering role.

Specifically, as shown in FIG. 1, the vehicle may further include a plug-in detection member 300 and an electric control module 400. The plug-in detection member 300 is configured to detect a plug-in state of the charging gun 610 inserted into the charging socket 10. The module 400 is electrically connected to the plug-in detection member 300 and controls the pump body 210 to work after receiving the plug-in completion signal from the charging gun 610. Wherein, as shown in the figure, the charging socket 10 may further include: a power distribution module 500, which can distribute power to the electric control module 400, and the electric control module 400 controls the working state of the pump body 210. Therefore, the charging socket 10 can achieve the purpose of reasonable control, and can ensure that a cooling medium flows in the cooling flow channel during charging.

In the description of this specification, the description with reference to the terms “one embodiment”, “some embodiments”, “examples”, “specific examples”, or “some examples” and the like means specific features described in conjunction with the embodiments or examples , Structure, material, or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, without any contradiction, those skilled in the art may combine and combine different embodiments or examples and features of the different embodiments or examples described in this specification.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present invention. Those skilled in the art can interpret the above within the scope of the present invention. Embodiments are subject to change, modification, substitution, and modification.

Claims (14)

A charging device for a vehicle is characterized in that it includes: a charging connector, the charging connector includes: a casing and a terminal, the terminal is disposed in the casing; a cooling chamber, the cooling chamber is fixed to the On the casing; a charging wire harness connected to the connection terminal; a cooling pipe communicating with the cooling chamber and contacting the charging wire harness, and the cooling pipe is at least wound around the charging wire harness on. The charging device for a vehicle according to item 1 of the scope of patent application, wherein the cooling chamber is fixed on the rear surface of the casing, and the cooling chamber is in contact with the rear end of the connection terminal. The charging device for a vehicle according to item 2 of the scope of patent application, wherein the cooling chamber is adhesively connected to the rear surface of the casing. The charging device for a vehicle according to item 1 of the patent application scope, wherein the cooling chamber is sleeved on the outer periphery of the casing. The charging device for a vehicle according to item 4 of the scope of patent application, wherein an escape groove is formed on the outer periphery of the casing, and the cooling chamber is sleeved in the escape groove and the outer peripheral surface is flush with the outer peripheral surface of the casing. . The charging device for a vehicle according to item 1 of the scope of patent application, wherein the cooling chamber is sleeved on the outer periphery of the casing and is also fixed on the rear surface of the casing. The charging device for a vehicle according to item 1 of the scope of patent application, wherein the cooling pipe includes a plurality of pipe sections in the same direction as the extension of the charging wire harness, and the adjacent pipe sections are bent. The charging device for a vehicle according to any one of claims 1 to 7 of the scope of patent application, further comprising: a heat dissipating body, a cooling flow channel is formed in the heat dissipating body, and a mounting seat is provided on the heat dissipating body. A charging connector is mounted on the mounting seat, and the cooling pipe is in communication with the cooling flow channel. The charging device for a vehicle according to item 8 of the scope of patent application, wherein a part of the cooling runner is located in the mounting seat. The charging device for a vehicle according to item 8 of the scope of patent application, wherein the heat dissipating body includes: an inlet pipe, a plurality of intermediate pipes, and an outlet pipe, and the plurality of intermediate pipes are connected between the inlet pipe and the outlet pipe, One end of the cooling pipe is connected to the inlet pipe and the other end is connected to the intermediate pipe or the outlet pipe. The cooling chamber is connected in series to the cooling pipe. The charging device for a vehicle according to item 10 of the patent application scope, wherein the intermediate pipe includes: a pipe body having a cooling channel formed therein; and a fin provided on an outer peripheral wall of the pipe body on. A vehicle is characterized by comprising: the charging device for a vehicle according to any one of items 1 to 11 of the scope of patent application; and a cooling system, the cooling chamber is in communication with the cooling system. The vehicle according to item 12 of the patent application scope, wherein the cooling system includes: a pump body, a heat exchanger, and a liquid storage tank, the pump body, the heat exchanger, the liquid storage tank, and the cooling pipe The circuit and the cooling chamber are connected in series. The vehicle according to item 13 of the scope of patent application, further comprising: a plug-in detection member and an electric control module, the plug-in detection member is used to detect the plug-in state of the charging gun inserted into the charging connector, the The electric control module is electrically connected to the plug detection member and controls the pump body to work after receiving the charging gun plug-in completion signal.