TWI719327B - First charging connector, charging guns, vehicles and charging systems - Google Patents

Abstract

The invention discloses a first and a second charging connector, a charging gun, a vehicle and a charging system. The first charging connector comprises: a first housing; a first cooling pipeline, the first cooling pipeline setting In the first housing; moving casing, the moving casing is sleeved on the first cooling line and axially movable relative to the first cooling line. Thereby, the first cooling line of the first charging connector can be docked with the second cooling line between the second charging connector by the moving casing, so that the coolant can be in the first cooling line. The flow between the second cooling circuit and the second cooling terminal can effectively reduce the operating temperature of the first terminal and the second terminal, and the problem that the temperature of the first terminal and the second terminal is too high can be avoided.

Description

First charging connector, charging gun, vehicle and charging system

The present invention relates to the technical field of vehicle charging, in particular to a first charging connector, a second charging connector, a charging gun and a vehicle including the first charging connector or the second charging connector, and the first charging connector and the first charging connector. 2. The charging system of the charging connector.

At present, due to energy and environmental issues, the explosive growth of new energy vehicles has been promoted, and the number of new energy vehicles has also been rising. Compared with traditional fuel vehicles, new energy vehicles have the huge advantages of 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 increasing the charging power to shorten the charging time is commonly used. The problem is that due to the excessive current, the terminal of the charging socket heats up seriously, causing the charging terminal to burn out or the charging failure, so that the whole vehicle cannot be charged normally, and the charging safety cannot be effectively guaranteed.

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

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 first charging connector, which can effectively reduce the operating temperature of the first connection terminal.

The present invention further provides a second charging connector.

The present invention further provides a charging gun.

The invention further provides a vehicle.

The present invention further provides a charging system.

The first charging connector according to the present invention includes: a first housing; a first cooling pipe arranged in the first housing; a movable sleeve sleeved with the movable sleeve It is on the first cooling pipe and can move axially relative to the first cooling pipe.

As a result, the first cooling pipe of the first charging connector can be docked with the second cooling pipe between the second charging connector under the action of the moving sleeve, so that the cooling liquid can be in the first cooling pipe. And the second cooling pipeline, which can effectively reduce the working temperature of the first connection terminal and the second connection terminal, and can avoid the problem that the temperature of the first connection terminal and the second connection terminal is too high.

In some examples of the present invention, a first external thread is formed on the outer circumference of the first cooling pipe, a first internal thread is formed on the inner circumference of the movable sleeve, and the first external thread is the same as the first internal thread. Threaded fit.

In some examples of the present invention, the first charging connector further includes: a driving device for driving the movable sleeve to move axially relative to the first cooling pipe. In some examples of the present invention, the driving device includes: a driving motor; a transmission threaded rod connected to the driving motor, wherein the outer periphery of the movable sleeve is formed with a second external thread, the transmission thread The rod is threadedly matched with the second external thread to realize the axial movement of the movable sleeve relative to the first cooling pipeline.

In some examples of the present invention, the first charging connector further includes: a cover provided on the drive motor and the transmission threaded rod, the housing is provided with an opening, and the transmission threaded rod A part extends into the opening.

In some examples of the present invention, a liquid inlet flow channel and a liquid return flow channel are provided in the first cooling pipeline.

In some examples of the present invention, a partition is provided in the first cooling pipeline, the inlet flow channel and the return flow channel are formed on both sides of the partition, and a partition is provided in the first cooling pipeline. The liquid inlet flow channel and the liquid return flow channel are formed on both sides of the partition member.

In some examples of the present invention, one-way water-passing membranes are respectively provided in the liquid inlet flow channel and the liquid return flow channel.

In some examples of the present invention, the first charging connector further includes: a sealing ring, the end of the first cooling pipeline communicating with the outside is provided with a mounting groove, and the sealing ring is installed in the mounting groove.

The second charging connector according to the present invention includes: a second housing; a second cooling pipe, the outer periphery of the second cooling pipe is provided with a third external thread.

The vehicle according to the present invention includes the first charging connector or the second charging connector.

The charging gun according to the present invention includes the first charging connector or the second charging connector.

The charging system according to the present invention includes: the first charging connector and the second charging connector, the first charging connector includes: a first cooling pipe and a moving sleeve; the second charging connector includes : A second cooling pipeline. When the first charging connection piece and the second charging connection piece are butted, the movable sleeve is sleeved on the first cooling pipeline and the second cooling pipeline.

In some examples of the present invention, the first charging connector is the first charging connector according to any one of items 1 to 8 in the scope of patent application, and the second charging connector is according to the ninth patent application scope. Item the second charging connector.

An embodiment of the present invention is described in detail below, and an example of the embodiment is shown in the accompanying 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.

The charging system according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figure 5, the charging system according to the embodiment of the present invention may include: a first charging connector 100 and a second charging connector, the first charging connector 100 and the second charging connector can be docked, the first One of the charging connection piece 100 and the second charging connection piece is a charging socket, and the other of the first charging connection piece 100 and the second charging connection piece is a charging gun on the charging pile 300. The charging socket can also be connected to the power battery. The charging harness is connected, so that after the charging socket is docked with the charging gun, the charging gun can charge the power battery.

The first charging connector 100 and the second charging connector will be described separately below.

Wherein, the first charging connector 100 may include: a first cooling pipe 20 and a moving sleeve 30, and the second charging connector may include: a second cooling pipe 220, when the first charging connector 100 and the second When the two charging connectors are connected, the movable sleeve 30 is sleeved on the first cooling pipe 20 and the second cooling pipe 220. This arrangement can realize the docking of the first cooling pipe 20 and the second cooling pipe 220. In addition, the first charging connector 100 is the first charging connector 100 according to the embodiment of the present invention, and the second charging connector is the second charging connector according to the embodiment of the present invention.

As shown in Figure 1, the first charging connector 100 according to the embodiment of the present invention may include: a first housing 10 and a first cooling pipe 20. Of course, the first charging connector 100 may also include other components, such as , The driving device 60, the first cooling pipeline 20 are arranged in the first housing 10, and the first charging connector 100 further includes: a first connection terminal 120, so that the first housing 10 can protect and fix the first The role of the cooling pipeline 20, wherein, there are multiple first wiring terminals 120, and multiple first wiring terminals 120 are arranged in pairs. For example, there may be two first wiring terminals 120, wherein the first cooling pipeline 20 is at the same time The two first connection terminals 120 are cooled, and a cooling liquid can flow in the first cooling pipe 20. The first terminal 120 may include a positive terminal and a negative terminal that transmit current. The first connection terminal 120 is suitable for a DC charging port.

In the same way, the charging terminal of the AC charging port also appears in pairs, and there may be more than one. The principle is the same as the above, and the application can still be implemented.

As shown in FIG. 4, the movable sleeve 30 is sleeved on the first cooling pipe 20, and the movable sleeve 30 can move axially relative to the first cooling pipe 20. In other words, the moving sleeve 30 can change the axial length of the sleeve sleeve on the first cooling pipe 20. The driving device 60 is used to drive the moving sleeve 30 to move axially relative to the first cooling pipe 20. In other words, under the action of the driving device 60, the moving sleeve 30 can move in the axial direction toward the first cooling pipe 20, so that the docking between the first cooling pipe 20 and the second cooling pipe 220 can be realized. .

The second charging connector according to the embodiment of the present invention includes: a second housing and a second cooling pipe 220, the second cooling pipe 220 is arranged in the second housing, and the end of the second cooling pipe 220 can be It extends into the first charging connector 100 to be matched with the movable sleeve 30 in the first charging connector 100.

Thus, in conjunction with Figures 4 and 5, when the first connection terminal 120 of the first charging connector 100 and the second connection terminal of the second charging connector are connected for charging, the first charging connector 100 The first cooling pipe 20 can be connected with the second cooling pipe 220 between the second charging connector under the action of the moving sleeve 30, so that the cooling liquid can be cooled in the first cooling pipe 20 and the second cooling pipe. The flow between the pipelines 220 can effectively reduce the working temperature of the first connection terminal 120 and the second connection terminal, and can avoid the problem that the temperature of the first connection terminal 120 and the second connection terminal is too high. The second terminal may include a positive terminal and a negative terminal that transmit current. This second terminal is suitable for DC charging ports.

In the same way, the charging terminal of the AC charging port also appears in pairs, and there may be more than one. The principle is the same as the above, and the application can still be implemented. In addition, due to the arrangement of the movable sleeve 30, the leakage of the cooling liquid in the first cooling pipe 20 and the second cooling pipe 220 can be avoided, so that the sealing of the first cooling pipe 20 and the second cooling pipe 220 can be ensured. Therefore, the docking safety of the first charging connector 100 and the second charging connector can be ensured.

Optionally, as shown in FIG. 1 and FIG. 2, the movable sleeve 30, the first cooling pipe 20 and the second cooling pipe 220 may be screwed together. For example, as shown in FIGS. 2 and 3, a first external thread 21 is formed on the outer circumference of the first cooling pipe 20, and a first internal thread 31 is formed on the inner circumference of the movable sleeve 30. 21 is threadedly engaged with the first internal thread 31. The threaded first cooling pipe 20 and the second cooling pipe 220 cooperate reliably, have good sealing performance, and the movable sleeve 30 has good movement stability.

Among them, as shown in FIG. 1, a third external thread 221 is provided on the outer circumference of the second cooling pipe 220. The third external thread 221 can also be threadedly matched with the first internal thread 31 of the movable sleeve 30, so as to ensure the reliability of the fit between the movable sleeve 30 and the second cooling pipe 220, and to ensure that the movable sleeve 30 and the The tightness between the second cooling pipes 220.

Specifically, as shown in FIGS. 1 and 4, the driving device 60 includes a driving motor 61 and a transmission threaded rod 62. The transmission threaded rod 62 is connected to the driving motor 61, wherein the outer periphery of the movable sleeve 30 is formed with a second With an external thread, the transmission threaded rod 62 is threadedly matched with the second external thread to realize the axial movement of the movable sleeve 30 relative to the first cooling pipe 20. It can be understood that when the driving motor 61 is working, the transmission threaded rod 62 drives the moving sleeve 30 to rotate through the second external thread while moving axially, so that the first cooling pipe 20 and the second cooling pipe 220 can be moved together. Docking.

Further, as shown in Figure 1, the first charging connector 100 further includes: a cover 70, the cover 70 is arranged on the drive motor 61 and the transmission threaded rod 62, the housing is provided with an opening, and the transmission threaded rod 62 A part of it extends into the opening. The arrangement of the cover 70 can protect the drive motor 61 and the transmission threaded rod 62 on the one hand, and can also play the role of fixing the drive motor 61 on the other hand.

Optionally, as shown in FIG. 2, a liquid inlet flow channel 22 and a liquid return flow channel 23 are provided in the first cooling pipe 20. That is to say, in the first cooling pipeline 20, two processes of liquid inlet and liquid discharge can be realized, which can make the structure of the first charging connector 100 simple, and can continue to take away the output generated by the first connection terminal 120. Heat. It should be noted that the second cooling pipe 220 is provided with a liquid inlet flow channel 22 and a liquid return flow channel 23 correspondingly, so as to facilitate the connection with the first cooling pipe 20. The structure of the first cooling pipe 20 and the second cooling pipe 220 may be substantially the same.

Among them, as shown in Fig. 1 and Fig. 2, a one-way water-passing membrane 25 is provided in the liquid inlet flow passage 22 and the liquid return flow passage 23, respectively. The one-way water-passing membrane 25 can prevent the circulating water from flowing back and leaking. The problem of liquid leakage when the first charging connector 100 and the second charging connector are separated is prevented, so that the safety of the arrangement of the first cooling pipe 20 and the second cooling pipe 220 can be improved.

Specifically, as shown in FIG. 2, a partition 24 is provided in the first cooling pipe 20, and an inlet flow channel 22 and a return flow channel 23 are formed on both sides of the partition 24. The extension direction of the partition 24 is the same as the extension direction of the first charging connector 100. The partition 24 can effectively divide the internal space of the first cooling pipeline 20 into a liquid inlet flow channel 22 and a liquid return flow channel 23, thereby enabling the inlet The liquid flow channel 22 and the liquid return flow channel 23 do not interfere with each other, and the structure of the first cooling pipe 20 can be made simple and reliable.

Also, as shown in Figure 2, the first charging connector 100 may further include a sealing ring 80, the end of the first cooling pipe 20 communicating with the outside is provided with a mounting groove, and the sealing ring 80 is installed in the mounting groove. The arrangement of the sealing ring 80 can improve the sealing performance of the first charging connector 100 at least to a certain extent, so that when the first charging connector 100 and the second charging connector are mated, the leakage of the coolant can be effectively avoided. In addition, the second cooling pipe 220 may also be provided with a sealing ring 80 in a form in which the first cooling pipe 20 is provided with a sealing ring 80.

As shown in Figure 5, the first charging connector 100 may further include a cooling system 400, which may include a pump body 40 and a liquid storage tank 50, and the pump body 40 is connected to the first cooling pipe 20 and the liquid storage tank. Between 50 tanks. The pump body 40 may be a bidirectional pump body 40, that is, when the first cooling pipe 20 is working, the pump body 40 can pump the cooling liquid 30 from the liquid storage tank 50 to the first cooling pipe 20, and after the charging is completed , The pump body 40 can pump the cooling liquid from the first cooling pipe 20 to the liquid storage tank 50. Among them, in addition, the cooling system 400 may also include: a screening program 90 and a heat exchanger 420, the pump body 40, the liquid storage tank 50, the screening program 90 and the heat exchanger 420 are connected in series, and the screening program 90 can filter The role of. As shown in FIG. 5, the first charging connector 100 may further include a power distribution module 110, and the power distribution module 110 may supply power to the pump body 40.

The vehicle according to the embodiment of the present invention includes the first charging connector 100 of the above-mentioned embodiment or the second charging connector of the above-mentioned embodiment.

The charging gun according to the embodiment of the present invention includes the first charging connector 100 of the above-mentioned embodiment or the second charging connector of the above-mentioned embodiment.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , Structure, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without contradicting each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be construed as limiting the present invention. Those of ordinary skill in the art can comment on the above-mentioned embodiments within the scope of the present invention. The embodiment undergoes changes, modifications, substitutions, and modifications.

100‧‧‧First charging connector 10‧‧‧First housing 20‧‧‧First cooling pipe 21‧‧‧First external thread 22‧‧‧Inlet flow path 23‧‧‧Return flow path 24‧‧‧Partition 25‧‧‧One-way water-passing diaphragm 30‧‧‧Moving sleeve 31‧‧‧First internal thread 40‧‧‧Pump body 50‧‧‧Liquid tank 60‧‧‧Drive device 61‧‧‧Drive motor 62‧‧‧Drive threaded rod 70‧‧‧Cover 80‧‧‧Sealing ring; 90‧‧‧Screening program 110‧‧‧Power distribution module 120‧‧‧First terminal 220‧ ‧‧Second cooling pipe 221‧‧‧Third external thread 300‧‧‧Charging pile 400‧‧‧Cooling system 420‧‧‧Heat exchanger

Figure 1 is an exploded view of the first charging connector according to an embodiment of the present invention; Figure 2 is a cross-sectional view of the first cooling pipe; Figure 3 is a cross-sectional view of the moving sleeve; Figure 4 is the driving device and the moving sleeve The schematic diagram of the cooperation of the tube, the first cooling pipe and the second cooling pipe; Figure 5 is a schematic diagram of a charging system according to an embodiment of the present invention.

100‧‧‧First charging connector

10‧‧‧First shell

20‧‧‧The first cooling line

21‧‧‧The first external thread

25‧‧‧One-way water-passing diaphragm

30‧‧‧Mobile casing

60‧‧‧Drive device

61‧‧‧Drive motor

62‧‧‧Drive threaded rod

70‧‧‧Cover

80‧‧‧Sealing ring

220‧‧‧Second cooling line

221‧‧‧Third external thread

Claims (9)

A first charging connector, which is characterized by comprising: a first housing; a first cooling pipe arranged in the first housing; a movable sleeve, the movable sleeve sleeve It is arranged on the first cooling pipe and can move axially relative to the first cooling pipe, wherein a first external thread is formed on the outer circumference of the first cooling pipe, and a first external thread is formed on the inner circumference of the moving sleeve. An internal thread, the first external thread is threaded with the first internal thread; the first charging connector further includes: a driving device for driving the moving sleeve axially relative to the first cooling pipe The driving device includes: a driving motor; a transmission threaded rod connected to the driving motor, wherein a second external thread is formed on the outer periphery of the movable sleeve, and the transmission threaded rod is connected to the second external thread. The screw thread is matched to realize the axial movement of the movable sleeve relative to the first cooling pipeline, and the axis of the transmission threaded rod is parallel to the axis of the movable sleeve. According to the first charging connector described in item 1 of the scope of patent application, the first charging connector further includes: a cover provided on the drive motor and the transmission threaded rod, and the housing An opening is provided on the upper part, and a part of the transmission threaded rod extends into the opening. According to the first charging connector described in item 1 of the scope of patent application, wherein the first cooling pipeline is provided with an inlet flow channel and a return flow channel, and the first cooling pipeline is provided with a partition, The liquid inlet flow channel and the liquid return flow channel are formed on both sides of the partition. According to the first charging connector as described in item 3 of the scope of patent application, wherein the liquid inlet flow channel and the liquid return flow channel are respectively provided with one-way water-passing membranes. According to the first charging connector described in item 1 of the scope of patent application, the first charging connector further includes: a sealing ring, an installation groove is provided at the end of the first cooling pipeline communicating with the outside, and the sealing The ring is installed in the installation groove. A vehicle, characterized by comprising the first charging connector according to any one of items 1 to 5 of the scope of patent application. A charging gun, characterized by comprising the first charging connector according to any one of items 1 to 5 of the scope of patent application. A charging system, characterized by comprising: a first charging connector, the first charging connector comprising: a first cooling pipeline and a moving sleeve; a second charging connector, the second charging connector It includes: a second cooling pipe, when the first charging connection piece and the second charging connection piece are butted, the movable sleeve is sleeved on the first cooling pipe and the second cooling pipe, and the second cooling pipe The outer circumference of the pipeline is provided with a third external thread; a driving device, the driving device has a transmission threaded rod, the driving device is used to drive the movable sleeve to move axially relative to the first cooling pipeline, the transmission threaded rod The axis is parallel to the axis of the movable sleeve. The charging system according to item 8 of the scope of patent application, wherein the first charging connector is the first charging connector according to any one of items 1 to 5 of the scope of patent application, and the second charging The connecting piece includes: a second housing.

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