CN208240973U - A kind of AC charging gun - Google Patents

Abstract

The utility model discloses an AC charging gun, which relates to the field of new energy vehicle charging technology. The AC charging gun includes a plug assembly, a cable connected to the plug assembly; and also includes a shell and a cable sheath. The shell is an integral structure, and the shell includes a first port and a second port arranged at both ends thereof; wherein the first port is sealed and connected to the plug assembly through a first sealing ring; the second port is used for the cable to pass through; the cable sheath is connected to the second port, and the cable sheath includes a sealing portion inserted into the second port and a protective portion located outside the second port. The AC charging gun of the utility model can prevent external rainwater from entering the interior of the AC charging gun by setting the shell as an integral structure and setting a sealing portion that can be inserted into the shell on the cable sheath, thereby further improving the protection level of the AC charging gun.

Description

A kind of AC charging gun

technical field

The utility model relates to the technical field of new energy vehicle charging, in particular to an AC charging gun.

Background technique

Electric vehicles use electricity as the only power source, and can only be charged after being connected to an AC charging pile through a charging interface. The main function of the charging interface is to establish a physical connection between the electric vehicle and the AC charging pile to realize the power supply of the electric vehicle.

The charging environment cannot be guaranteed when charging electric vehicles. For users who often charge electric vehicles outdoors, the charging interface used must meet a certain level of dustproof and waterproof, especially in rainy weather in the south. If the interface is soaked in water for a long time, there is a risk of high-voltage short circuit due to the failure of external protection and water ingress. Therefore, the protection level needs to be improved to meet the requirements of sealing and waterproofing.

The current AC charging structure mainly strengthens the local sealing and waterproofing of the AC charging gun head, but the AC charging gun shell is still spliced by the left gun shell and the right gun shell, and the cable tail is connected with the shell to protect the cable. The cover does not have a structure to prevent rainwater from entering, so there is still a risk of external rainwater entering the AC charging gun from the outside, which will cause a high-voltage short circuit in the AC charging gun.

For this reason, it is urgent to provide an AC charging gun to solve the above-mentioned problems.

Utility model content

The purpose of this utility model is to propose an AC charging gun, which can improve its protection level and avoid the phenomenon of high-voltage short circuit caused by external rainwater entering the AC charging gun.

For this purpose, the utility model adopts the following technical solutions:

An AC charging gun, including a plug assembly and a cable connected to the plug assembly; also includes:

The shell is an integral structure, and the shell includes a first port and a second port arranged at both ends thereof; wherein the first port is sealed and connected with the plug assembly through a first sealing ring; the second port is used for passing through the cable;

A cable sheath connected to the second port, the cable sheath including a sealing part inserted into the second port and a protective part located outside the second port.

After adopting this structure, by setting the shell as an integral structure, the phenomenon that external rainwater enters the inside of the AC charging gun from the gap of the split shell is effectively avoided; at the same time, the shell can be inserted into the shell by setting the cable sheath The internal sealing part can prevent external rainwater from entering the interior of the AC charging gun through the connection between the cable sheath and the shell, further improving the protection level of the AC charging gun, thereby reducing the probability of high-voltage short-circuit danger of the AC charging gun.

Preferably, the plug assembly is provided with an embedding portion, and the embedding portion is nested in the first port so that the plug assembly partially overlaps with the shell.

Preferably, the plug assembly includes:

A plug housing, which includes the embedding portion and a connection portion connected to a charging pile or an electric vehicle;

a terminal, which is used for electrical connection with the charging pile or the electric vehicle, and the terminal is arranged in the plug housing;

A pressing plate is connected to the embedded part, and the cable passes through the pressing plate and is connected to the terminal.

Preferably, the terminal is provided with a terminal, and the terminal sealing ring is squeezed between the terminal and the plug housing.

Preferably, the AC charging gun further includes a locking device for fixed connection with the charging pile or the electric vehicle, and the locking device includes a hook and a button for controlling the locking or unlocking of the hook. A button, the hook is arranged on the plug assembly, and the button is arranged on the shell.

Preferably, the AC charging gun further includes a microswitch disposed on the plug shell, and the microswitch can be triggered when the locking device is in a locked state;

The electrical connection wire of the micro switch enters the casing through the pressure plate, and a second sealing ring is arranged between the micro switch and the pressure plate.

Preferably, the plug housing includes:

a lock hole, which is used for the protruding of the hook;

a first groove for placing the hook;

a second groove, which is used to place the micro switch, and the second groove communicates with the first groove;

a third groove, which is used for the connection between the terminal and the cable, and a partition is provided between the second groove and the third groove;

The pressing plate can block one end of the second groove and one end of the third groove.

Preferably, the pressing plate includes an insertion portion inserted into the third groove and a baffle provided at one end of the second groove.

Preferably, the first sealing ring is an annular structure.

Preferably, one end of the plug assembly is provided with a plug sheath.

The beneficial effects of the utility model:

1) By setting the shell as an integral structure, the phenomenon that external rainwater enters the AC charging gun from the gap of the split shell is effectively avoided;

2) By providing a sealing part on the cable sheath that can be inserted into the inside of the housing, it can prevent external rainwater from entering the interior of the AC charging gun through the connection between the cable sheath and the housing, further improving the protection level of the AC charging gun , thereby reducing the probability of a high-voltage short-circuit risk in the AC charging gun.

Description of drawings

Fig. 1 is a schematic structural view of an AC charging gun provided by the utility model;

Fig. 2 is a schematic cross-sectional view of an AC charging gun provided by the utility model;

Fig. 3 is an explosion schematic diagram of an AC charging gun provided by the utility model;

Fig. 4 is a schematic structural view of the plug shell of an AC charging gun provided by the utility model;

Fig. 5 is a structural schematic diagram of a pressure plate of an AC charging gun provided by the present invention.

In the picture:

1. Plug assembly;

11. Plug shell; 111. Connecting part; 112. Embedding part; 113. Lock hole; 114. First groove; 115. Second groove; 116. Third groove;

12. Pressure plate; 121. Baffle plate; 122. Insertion part;

13. Terminal; 14. Terminal sealing ring;

2. Shell; 21. First port; 22. Second port;

3. Cable sheath; 31. Sealing part; 32. Protection part; 33. Clamping board;

4. Cable; 5. Micro switch; 6. The first sealing ring;

7. Locking device; 71. Grab hook; 72. Button; 73. Rotating shaft; 74. Torsion spring; 75. Card protrusion;

8. Second sealing ring; 9. Plug sheath; 10. Connecting rope.

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

This embodiment discloses an AC charging gun. As shown in Figures 1-3, the AC charging gun includes an integral housing 2, a plug assembly 1, a cable 4 and a cable sheath 3, wherein the housing 2 includes The first port 21 and the second port 22 at both ends; wherein the first port 21 is sealed and connected to the plug assembly 1 through the first sealing ring 6; the second port 22 is connected to the cable sheath 3, and the cable 4 passes through the cable The sheath 3 is connected with the plug assembly 1 . Specifically, the cable sheath 3 is fixedly connected to the housing 2 through two clamping plates 33 . By arranging the housing 2 as an integral structure, the phenomenon that external rainwater enters the interior of the AC charging gun from the gap of the split housing is effectively avoided. Moreover, the cable sheath 3 includes a sealing portion 31 inserted into the second port 22 and a protective portion 32 located outside the second port 22, while the highest point of the second port 22 is lower than the highest point of the first port 21; When rainwater flows along the shell 2 from the first port 21 to the second port 22, by setting the sealing part 31 on the cable sheath 3 that can be inserted into the inside of the shell 2, it can also prevent external rainwater from passing through the cable sheath 3 and the shell 2. The connection of the AC charging gun enters the interior of the AC charging gun, which further improves the protection level of the AC charging gun, thereby reducing the probability of a high-voltage short circuit in the AC charging gun.

Wherein, the plug assembly 1 is provided with an embedding portion 112 , the first port 21 is provided with a sleeve portion, and the embedding portion 112 is nested in the sleeve portion so that the plug assembly 1 and the housing 2 partially overlap. Moreover, the first sealing ring 6 of annular structure is disposed between the sleeve part and the embedded part 112, which further improves the protection level of the AC charging gun.

Moreover, the AC charging gun also includes a locking device 7 for fixed connection with the charging pile or the electric vehicle. In this embodiment, the locking device 7 includes a hook 71 and a button 72 for controlling the locking or unlocking of the hook 71. The button 72 is arranged on the housing 2, and the hook 71 is arranged on the embedded part 112 of the plug assembly 1. . Specifically, the two ends of the hook 71 are respectively provided with a hook head facing the plug assembly 1 and a projection 75 facing the shell 2, and a pivot point is provided at the middle position, and the pivot point is fixed on the plug assembly 1 through the rotating shaft 73, and the pivot point A torsion spring 74 is configured, and the button 72 passes through the shell 2 to cooperate with the locking protrusion 75 , so that the hook 71 can be moved away from the plug assembly 1 or close to the plug assembly 1 through the button 72 . Of course, the locking device 7 can also be realized in other ways, which are not limited here.

Referring to Figures 2-3, the AC charging gun also includes a microswitch 5 arranged on the plug assembly 1, and the locking device 7 can trigger the microswitch 5 when it is in a locked state; when the AC charging gun is connected to a charging pile or an electric vehicle, After the connector is plugged in, the micro switch 5 is triggered by the locking device 7 to indicate that the charging action can be performed after the connection is completed; The micro switch 5 will not perform the charging action, so the micro switch 5 can function as a safety switch.

Specifically, the plug assembly 1 includes a plug housing 11, a pressure plate 12, and a plurality of terminals 13 for electrical connection with charging piles or electric vehicles, and the terminals 13 are also provided with terminal sealing rings 14, and the terminal sealing rings are pressed against the terminals 13. Between the plug housing 11: as shown in FIG. 4, the plug housing 11 includes an embedded part 112 and a connecting part 111 connected with a charging pile or an electric vehicle, wherein the embedded part 112 includes a lock hole 113 for the hook to protrude. The first groove 114 for placing the hook 71, the second groove 115 for placing the micro switch 5, and the third groove 116 for connecting the terminal 13 to the cable 4; wherein the second groove 115 and The first groove 114 communicates; a partition is arranged between the second groove 115 and the third groove 116; the terminal 13 is arranged through the third groove 116 and enters into the connection part 111; the pressure plate 12 is arranged in the embedded part 112 An end away from the connecting portion 111 , wherein the cable 4 passes through the pressing plate 12 and is connected to the terminal 13 . Specifically, as shown in FIG. 5 , the pressing plate 12 includes an insertion portion 122 inserted into the third groove 116 and a baffle 121 disposed at one end of the second groove 115 , and the insertion portion 122 and the baffle 121 are integrally formed. Wherein the electric wire that is connected with microswitch 5 passes through baffle plate 121 and is connected with microswitch 5, and second sealing ring 8 is arranged between microswitch 5 and baffle plate 121, passes through lockhole 113, The first groove 114 and the second groove 115 enter into the third groove 116 along the baffle plate 121, causing a high-voltage short-circuit phenomenon; The sealing ring 14 is sleeved on the end of the terminal 13 close to the insertion part 122, and the thickness of the insertion part 122 is greater than the thickness of the baffle 121, so that it can better cover the crimping part of the terminal 13 and the cable 4, and play a certain role. protective effect.

In this embodiment, the first sealing ring 6, the second sealing ring 8 and the cable sheath 3 are all made of soft silicone rubber, all of which are protected by side walls, so that the sealing protection area is large, and the dimensional tolerance of the compression amount can be enlarged ; At the same time, products made of soft silicone rubber can change with the shape of the product, and are not easily affected by product deformation.

In addition, the AC charging gun also includes a plug sheath 9, and the plug sheath 9 covers the connection part 111 of the plug assembly 1 to form a certain protection for the plug assembly 1; in addition, the plug sheath 9 is connected to the cable sheath 3 through the connecting rope 10 In this way, when the plug sheath 9 needs to be removed to plug the plug assembly 1 with the charging pile or the electric vehicle, the plug sheath 9 does not need to be specially stored, and at the same time, the loss of the plug sheath 9 due to improper storage is avoided.

Instructions for the assembly of the AC charging gun in this example:

1) Insert the cable 4 into the cable sheath 3, and then enter the shell 2 from the second port 22, and crimp the end of the cable 4 entering the shell 2 with the terminal 13 in the plug assembly 1. ;

2) After the cable 4 and the terminal 13 are crimped, the terminal sealing ring 14 is sleeved on each terminal 13, and the crimped part of the crimped cable 4 and the terminal 13 is embedded in the pressure plate 12 Insert the microswitch 5 into the second groove 115 at the same time, and the second sealing ring 8 is arranged between the microswitch 5 and the baffle plate 121; then the hook 71, torsion spring 74 and The rotating shaft 73 is fixed in the first groove 114; after the above operations, the plug housing 11 and the pressing plate 12 are pressed together to complete the assembly of the plug assembly 1;

3) Put the first sealing ring 6 on the embedded part 112 of the plug assembly 1, and then fix the plug assembly 1 and the first port 21 of the shell 2; and pass the button 72 of the locking device 7 through the shell 2 and the card The protrusion 75 of the hook 71 is connected; finally, the cable sheath 3 is fixedly connected with the shell 2 through two clamping plates 33 .

The technical principles of the present utility model have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the utility model, and cannot be construed as limiting the protection scope of the utility model in any way. Based on the explanations herein, those skilled in the art can think of other specific implementations of the present utility model without creative work, and these forms will all fall within the protection scope of the present utility model.

Claims (10)

1. a kind of AC charging rifle, including plug-assembly (1), the cable (4) being connect with the plug-assembly (1)；Its feature exists In, further includes:

Shell (2), is monolithic construction, and the shell (2) includes the first port (21) and second end for being set to its both ends Mouth (22)；Wherein the first port (21) is tightly connected by the first sealing ring (6) and the plug-assembly (1)；Described Two-port netwerk (22) is passed through for the cable (4)；

Cable jacket (3) is connect with the second port (22), and the cable jacket (3) includes being inserted into the second port (22) internal sealing (31) and protection department (32) external positioned at the second port (22).

2. AC charging rifle according to claim 1, which is characterized in that the plug-assembly (1) is provided with embedded division (112), embedded division (112) set makes the plug-assembly (1) and the shell (2) portion in the first port (21) Divide and is overlapped.

3. AC charging rifle according to claim 2, which is characterized in that the plug-assembly (1) includes:

Plug body (11) comprising the embedded division (112) and the interconnecting piece (111) being connect with charging pile or electric car；

Terminal (13) is used to be electrically connected with the charging pile or the electric car, and the terminal (13) be set to it is described In plug body (11)；

Pressing plate (12) is connect with the embedded division (112), and the cable (4) passes through the pressing plate (12) and the terminal (13) it connects.

4. AC charging rifle according to claim 3, which is characterized in that the terminal (13) is provided with terminal sealing circle (14), the terminal sealing circle (14) is extruded between the terminal (13) and the plug body (11).

5. AC charging rifle according to claim 3, which is characterized in that the AC charging rifle further include for it is described The locking device (7) that charging pile or the electric car are fixedly connected, the locking device (7) include grab (71) and for controlling The button (72) of the grab (71) locking or unlock is made, the grab (71) is set on the plug-assembly (1), described to press Button (72) is set on the shell (2).

6. AC charging rifle according to claim 5, which is characterized in that the AC charging rifle further include be set to it is described Microswitch (5) on plug body (11), the locking device (7) can trigger the microswitch when being in locking state (5)；

The electric connection line of the microswitch (5) passes through the pressing plate (12) and enters in the shell (2), and the microswitch (5) it is provided between the pressing plate (12) the second sealing ring (8).

7. AC charging rifle according to claim 6, which is characterized in that the plug body (11) includes:

Lockhole (113), is used for the stretching of the grab (71)；

First groove (114) is used to place the grab (71)；

Second groove (115) is used to place the microswitch (5), and second groove (115) and first groove (114) it is connected to；

Third groove (116), is used for the connection of the terminal (13) Yu the cable (4), and second groove (115) with Partition is provided between the third groove (116)；

The pressing plate (12) can one end of one end and the third groove (116) to second groove (115) block.

8. AC charging rifle according to claim 7, which is characterized in that the pressing plate (12) includes that the insertion third is recessed The internal insertion section (122) of slot (116) and the baffle (121) for being set to described second groove (115) one end.

9. AC charging rifle according to claim 1, which is characterized in that first sealing ring (6) is cyclic structure.

10. AC charging rifle according to claim 1, which is characterized in that one end of the plug-assembly (1) is provided with slotting End protective cover (9).