CN109600960B - Vehicle charging device and vehicle - Google Patents

Abstract

The invention discloses a charging device for a vehicle and a vehicle. The charging device comprises: a charging connector, the charging connector includes: a housing and a wiring terminal, the wiring terminal is arranged in the housing; a cooling chamber, the A cooling chamber is fixed on the housing; a charging wire harness, the charging wire harness is connected with the connection terminal; a cooling pipeline, the cooling pipeline communicates with the cooling chamber and is in contact with the charging wire harness. Therefore, by arranging the cooling chamber and the cooling pipeline, the temperature of the terminal and the charging harness can be effectively reduced, so that the problem of overheating of the terminal can be avoided, and the charging safety of the vehicle can be ensured.

Description

Vehicle charging device and vehicle

technical field

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 charging device.

Background technique

At present, due to energy and environmental problems, the explosive growth of electric vehicles is promoted, and the number of new energy vehicles is also rising. Compared with traditional fuel vehicles, electric vehicles have great advantages in energy saving and environmental protection, but the long charging time period of electric vehicles has been criticized for a long time.

At this stage, the method of shortening the charging time by increasing the charging power is widely used. The problem that comes with it is: due to the excessive current, the terminal at the charging socket is seriously heated, resulting in the burning of the terminal or the problem of charging failure, so that the whole vehicle cannot be charged normally, and the charging safety cannot be effectively guaranteed.

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

SUMMARY OF THE INVENTION

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present invention provides a charging device for a vehicle, which can effectively reduce the temperature of the connection terminal and ensure the charging safety of the vehicle.

The present invention further provides a vehicle.

A charging device for a vehicle according to the present invention includes: a charging connector, the charging connector includes: a housing and a connection terminal, the wiring terminal is provided in the housing; and a cooling chamber, the cooling chamber is fixed on the on the housing; a charging wire harness, the charging wire harness is connected with the connection terminal; a cooling pipeline, the cooling pipeline communicates with the cooling chamber and is in contact with the charging wiring harness.

Therefore, according to the vehicle charging device of the present invention, by providing the cooling chamber and the cooling pipeline, the temperature of the connection terminal and the charging wire harness can be effectively reduced, so that the problem of overheating of the connection terminal can be avoided, and the charging safety of the vehicle can be ensured.

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

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

In some examples of the present invention, the cooling chamber is sleeved on the outer circumference of the housing.

In some examples of the present invention, an escape groove is formed on the outer circumference of the casing, 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 attached and 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 pipeline includes a plurality of pipeline segments extending in the same direction as the charging wire harness, and adjacent pipeline segments are bent and arranged.

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

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 dissipation body includes: an inlet pipe, a plurality of intermediate pipes and an outlet pipe, the plurality of intermediate pipes are communicated between the inlet pipe and the outlet pipe, and the cooling pipeline One end is connected with the inlet pipe and the other end is connected with the intermediate pipe or the outlet pipe, and the cooling chamber is connected in series on the cooling pipeline.

In some examples of the present invention, the intermediate pipe includes: a pipe body, in which a cooling flow channel is formed; and fins, which are arranged on the outer peripheral wall of the pipe body.

A vehicle according to the present invention includes: the charging device for the vehicle; and a cooling system, and the cooling chamber communicates 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, the pump body, the heat exchanger, the liquid storage tank, the cooling pipeline and the liquid storage tank The cooling chambers are connected in series.

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

Description of drawings

FIG. 1 is a schematic diagram of docking a charging connector of a charging device with a charging gun according to an embodiment of the present invention;

Figure 2, Figure 3 and Figure 5 are respectively exploded views of the charging device according to the embodiment of the present invention;

FIG. 4 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;

Figure 7 is a cross-sectional view of the cooling chamber shown in Figure 6;

FIG. 8 and FIG. 9 are schematic views of the charging connector mounted on the mounting seat of the heat dissipation body, respectively.

Reference number:

charging device 100;

Charging socket 10; shell 1; avoidance slot 11; terminal 2;

cooling chamber 20; inlet 21; outlet 22; perforation 23;

Charging harness 30; Cooling pipeline 40;

Cooling body 50; mounting seat 51; inlet pipe 52; intermediate pipe 53; pipe body 531; fins 532;

outlet pipe 54;

sealing ring 60;

Cooling system 200; pump body 210; heat exchanger 220; liquid storage tank 230; filter 240;

Plug detection part 300; electronic control module 400; power distribution module 500;

Charging pile 600; charging gun 610.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

The charging apparatus 100 for a vehicle according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 2 , 3 and 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 pipeline 40 , and the charging connector may be a 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 arranged in the housing 1, and the housing 1 can play the role of installing and fixing the wiring terminal 2, and the housing 1 can also play the role of insulation.

The cooling chamber 20 is fixed on the housing 1, so that the cooling chamber 20 can directly contact the housing 1. When the charging socket 10 is docked with the charging gun 610 of the charging pile 600 to charge the power battery of the vehicle, the cooling chamber 20 can effectively The heat of the housing 1 and the terminal 2 is taken away, 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 ensured. In addition, the fixing problem of the cooling chamber 20 can be solved by the housing 1 . The cooling chamber 20 can be filled with cooling medium, and the cooling medium can also flow. For example, the cooling chamber 20 is provided with an inlet 21 and an outlet 22 . The cooling medium may be a cooling liquid.

The charging wire harness 30 is connected to the connection terminals 2. For example, when there are two connection terminals 2, the number of charging wire harnesses 30 can be two, and the two charging wire harnesses 30 are connected to the two connection terminals 2 in a one-to-one correspondence. Current is transmitted between the terminal 2 and the power battery, wherein the charging harness 30 may be a high-voltage harness. The terminals 2 may include positive and negative terminals that carry current. This terminal 2 is suitable for DC charging port.

In the same way, the charging terminals of the AC charging port also appear in pairs, and there may be multiple ones. The principle is the same as above, and the application can still be implemented.

The cooling line 40 communicates with the cooling chamber 20 , and the cooling line 40 is in contact with the charging harness 30 . Therefore, the cooling line 40 can be used to cool the charging wire harness 30 , thereby effectively reducing the temperature of the charging wire harness 30 , avoiding high temperature of the charging wire harness 30 , and ensuring the charging safety of the vehicle. Moreover, the cooling line 40 is connected to the cooling chamber 20, so that the structure of the charging device 100 can be simplified. The cooling line 40 and the cooling chamber 20 can share a cooling source, thereby reducing the cost of the charging device 100 and reducing the size of the charging device 100. volume of.

Therefore, according to the charging device 100 of the vehicle according to the embodiment of the present invention, by arranging the cooling chamber 20 and the cooling pipeline 40, the temperature of the terminal 2 and the charging harness 30 can be effectively reduced, so that the problem of overheating of the terminal 2 can be avoided. The charging safety of the vehicle can be guaranteed.

According to an optional embodiment of the present invention, as shown in FIG. 2 and FIG. 7 , the cooling chamber 20 is attached and fixed on the rear surface of the housing 1 , wherein the cooling chamber 20 may be provided with a through hole 23 , and the through hole 23 may be used for wiring The terminal 2 or the charging wire harness 30 passes through, wherein the crimping point between the connection terminal 2 and the charging wire harness 30 is provided in the cooling chamber 20 , so that the cooling chamber 20 can assume the function of a part of the housing. The end of the housing 1 facing the charging wire harness 30 is the rear end, and the end away from the charging wire harness 30 is the front end.

The cooling chamber 20 is in contact with the rear end of the 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 that the contact area between the cooling chamber 20 and the housing 1 can be ensured, Moreover, the cooling chamber 20 can also directly contact the terminal 2, thereby further improving the ability of the cooling chamber 20 to reduce the terminal 2, effectively avoiding the problem of overheating of the terminal 2, and ensuring the charging safety of the vehicle.

Specifically, the cooling chamber 20 is bonded to the rear surface of the housing 1 . On the one hand, the adhesive connection can ensure reliable fixing between the cooling chamber 20 and the housing 1 , and on the other hand, can improve the assembly efficiency of the charging device 100 .

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

As shown in FIG. 3 , an escape groove 11 is formed on the outer periphery of the casing 1 , the cooling chamber 20 is sleeved in the escape groove 11 , and the outer peripheral surface of the cooling chamber 20 is flush with the outer peripheral surface of the casing 1 . In this way, the location of the cooling chamber 20 can be reasonably arranged, and the overall structural reliability of the charging device 100 is better. 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 sleeved at the avoidance groove 11 , the casing 1 can act as a cover for the front end, thereby ensuring that the cooling chamber 20 and the casing Installation reliability of body 1.

Also, as shown in FIG. 4 , the inlet 21 and the outlet 22 of the cooling chamber 20 can be arranged on the same side, which can facilitate the in and out of the cooling medium, and a partition can be arranged between the inlet 21 and the outlet 22, which can ensure The cooling medium circulates well between the inlet 21 and the outlet 22 of the cooling chamber 20 , so that the ability of the cooling chamber 20 to take away the heat of the terminal 2 can be ensured.

According to yet another optional embodiment of the present invention, as shown in FIG. 5 and FIG. 6 , the cooling chamber 20 is sleeved on the outer circumference of the casing 1 , and the cooling chamber 20 is also fixed on the rear surface of the casing 1 . That is to say, the cooling chamber 20 is not only in contact with the outer circumference of the casing 1, but also in contact with the rear surface of the casing 1, that is, in the axial direction (ie, the front-rear direction), the cooling chamber 20 corresponds to the terminal 2, the terminal 2 and the charging One of the crimping point of the wire harness 30 and the charging wire harness 30 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.

There are also various arrangements of the cooling pipeline 40 .

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

According to another optional embodiment of the present invention, the cooling pipeline 40 includes a plurality of pipeline segments extending in the same direction as the charging wire harness 30 , and adjacent pipeline segments are bent and arranged. The pipe section can extend in the same direction as the charging wire harness 30 , so that the pipe section and the charging wire harness 30 can be in contact with each other, so that the cooling medium in the pipe section can effectively take away the heat at the charging wire 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 pipeline 40 communicates with the cooling flow channel, The charging socket 10 is mounted on the mount 51 . A part of the cooling channel is located in the mounting seat 51 , that is to say, the cooling channel on the heat dissipation body 50 flows through the mounting seat 51 , so that the cooling medium in the cooling channel can be exchanged with the charging socket 10 at the mounting seat 51 Therefore, the temperature of the charging socket 10 can be effectively reduced, the temperature of the terminal 2 of the charging socket 10 can be reduced, the phenomenon of overheating of the terminal 2 can be avoided, and the working reliability of the charging device 100 can be guaranteed, and the charging of the vehicle can be guaranteed. safety.

Optionally, as shown in FIG. 8 and FIG. 9 , the heat dissipation body 50 includes: an inlet pipe 52 , a plurality of intermediate pipes 53 and an outlet pipe 54 , and the plurality of intermediate pipes 53 are connected between the inlet pipe 52 and the outlet pipe 54 , and the cooling One end of the pipe 40 is connected with the inlet pipe 52 , and the other end of the cooling pipe 40 is connected with the intermediate pipe 53 or the outlet pipe 54 , and the cooling chamber 20 is communicated with the cooling pipe 40 . Therefore, a plurality of intermediate pipes 53 can share one inlet pipe 52 and one outlet pipe 54, which can make the structure of the heat dissipation body 50 simple and easy to arrange. Moreover, the heat dissipating body 50 thus arranged can also ensure the smooth flow of the cooling medium in 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 flow channel in the mounting seat 51 is connected with the inlet pipe 52, and the lower end can be connected with a plurality of intermediate pipes 53, and the surrounding of the mounting seat 51 is also connected to the inlet pipe 52. There may be a plurality of intermediate tubes 53 surrounding them. 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 .

Wherein, as shown in FIGS. 8 and 9 , the upper end of the mounting seat 51 is communicated with the inlet pipe 52 , and the lower end of the mounting seat 51 is communicated with a plurality of intermediate pipes 53 . Therefore, a part of the cooling medium can directly enter the mounting seat 51 after flowing out from the inlet pipe 52, and exchange heat with the charging connector at the mounting seat 51, thereby effectively reducing the temperature of the terminals of the charging connector, and the outflow The cooling medium of the mounting seat 51 can flow into the intermediate pipe 53 . Moreover, one mounting seat 51 can correspond to a plurality of intermediate pipes 53 at the same time, so as to ensure the smooth flow of the cooling medium.

Specifically, as shown in FIGS. 8 and 9 , a plurality of intermediate pipes 53 are arranged perpendicular to the inlet pipes 52 and the outlet pipes 54 . In this way, the middle pipe 53 can be arranged vertically, and the inlet pipe 52 and the outlet pipe 54 can be arranged horizontally, so as to ensure the smooth flow of the cooling medium in the middle pipe 53, and it is beneficial for the inlet pipe 52 and the outlet pipe 54 to be connected with multiple pipes at the same time. One intermediate tube 53 corresponds.

Optionally, as shown in FIG. 8 , the intermediate pipe 53 includes: a pipe body 531 and fins 532 , a cooling channel is formed in the pipe body 531 , and the fins 532 are arranged on the 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, and the arrangement of the fins 532 can improve the heat dissipation area of the pipe body 531, which can facilitate the better exchange of the mounting seat 51 and the charging socket 10. hot.

As shown in FIG. 1 , a vehicle according to an embodiment of the present invention may include the vehicle charging device 100 and the cooling system 200 of the above-mentioned embodiment, and the cooling chamber 20 communicates with the cooling system 200 . Therefore, 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 being charged, thereby effectively reducing the working temperature of the charging socket 10 .

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 , the pump body 210 , the heat exchanger 220 , the liquid storage tank 230 , the cooling pipeline 40 and the cooling chamber 20 are connected in series, wherein the pump body 210 is connected with the heat exchanger 220 , the liquid storage tank 230 is connected with the heat exchanger 220 , and the liquid storage tank 230 is also connected with the cooling flow channel, and the cooling flow channel is also connected with the pump body 210 . Therefore, the pump body 210 can work when the charging socket 10 and the charging gun 610 on the charging pile 600 are docked, so as to pump the cooling liquid into the cooling channel, the cooling pipeline 40 and the cooling chamber 20, so that the cooling channel can cool the wiring Terminal 2 and charging harness 30. The cooling system 200 further includes: a filter 240, the filter 240 is disposed between the pump body 210 and the heat exchanger 220, and the filter 240 can play a filtering role.

Specifically, as shown in FIG. 1 , the vehicle may further include: a plug-in detection part 300 and an electronic control module 400 , the plug-in detection part 300 is used to detect the plug-in state of the charging gun 610 inserted into the charging socket 10 , and the electronic control module 400 It is electrically connected to the plug-in detection part 300 and controls the pump body 210 to work after receiving the signal that the charging gun 610 is plugged in completion. Wherein, as shown in the figure, the charging socket 10 may further include: a power distribution module 500 , the power distribution module 500 can distribute power to the electronic control module 400 , and the electronic 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 the cooling medium flows in the cooling channel during charging.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations 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. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present invention. Embodiments are subject to variations, modifications, substitutions and variations.

Claims (12)

1. A charging device for a vehicle, comprising: a charging connector, the charging connector includes a housing and a terminal, the wiring terminal is arranged in the housing, and the charging connector is a charging socket; a cooling chamber, the cooling chamber is fixed on the casing; a charging wire harness, the charging wire harness is connected to the connection terminal; a cooling pipeline, the cooling pipeline communicates with the cooling chamber and is in contact with the charging harness; It also includes: a heat dissipation body, a cooling flow 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, the cooling pipeline is connected to the cooling flow road connection The heat dissipation body includes: an inlet pipe, a plurality of intermediate pipes and an outlet pipe, the plurality of intermediate pipes are communicated between the inlet pipe and the outlet pipe, and one end of the cooling pipeline is connected to the inlet pipe and the other end is connected with the intermediate pipe or the outlet pipe, and the cooling chamber is connected in series on the cooling pipeline; the intermediate pipe includes: a pipe body, a cooling flow channel is formed in the pipe body; fins, the fins Sheets are provided on the outer peripheral wall of the tubular body. 2 . The vehicle charging device according to claim 1 , wherein the cooling chamber is attached and fixed on the rear surface of the housing, and the cooling chamber is in contact with the rear end of the connection terminal. 3 . 3 . The vehicle charging device according to claim 2 , wherein the cooling chamber is bonded to the rear surface of the housing. 4 . 4 . The vehicle charging device according to claim 1 , wherein the cooling chamber is sleeved on the outer circumference of the housing. 5 . 5 . The charging device for a vehicle according to claim 4 , wherein an escape groove is formed on the outer periphery of the casing, the cooling chamber is sleeved in the escape groove, and the outer peripheral surface is connected to the casing. 6 . The outer perimeter is flush. 6 . The vehicle charging device according to claim 1 , wherein the cooling chamber is sleeved on the outer periphery of the casing and is also fixed on the rear surface of the casing. 7 . 7 . The vehicle charging device according to claim 1 , wherein the cooling pipeline is wound around at least the charging harness. 8 . 8 . The vehicle charging device according to claim 1 , wherein the cooling pipeline comprises a plurality of pipeline segments with the same extension direction as the charging harness, and the adjacent pipeline segments are bent and arranged. 9 . 9 . The vehicle charging device of claim 1 , wherein a portion of the cooling channel is located in the mounting seat. 10 . 10. A vehicle comprising: The charging device for a vehicle according to any one of claims 1-9; A cooling system, the cooling chamber communicates with the cooling system. 11. The vehicle according to claim 10, wherein the cooling system comprises: a pump body, a heat exchanger and a liquid storage tank, the pump body, the heat exchanger, the liquid storage tank, the The cooling pipeline and the cooling chamber are connected in series. 12 . The vehicle according to claim 11 , further comprising: a plug-in detection part and an electric control module, the plug-in detection part is used to detect the plug-in state of the charging gun inserted into the charging connector, 12 . The electronic control module is electrically connected with the plug-in detection element and controls the pump body to work after receiving the charging gun plug-in completion signal.

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