CN107591648B - Charging plug and charging pile including the charging plug - Google Patents

Abstract

The invention discloses a charging plug which comprises a plug body, comprising a housing and a mechanical lock. The mechanical lock has a first end, a second end, and a pivot point located between the first and second ends, with a first engagement formed on the first end. During charging, the charging plug is plugged into the charging socket, and the first engagement portion of the charging plug is locked with the second engagement portion of the charging socket. At the end of charging, the lock between the first and second engagement portions may be released by pressing the second end of the mechanical lock to the unlocked position. The charging plug further includes an electronic lock mounted on the housing, the electronic lock includes a first cam and a driver adapted to drive the first cam to rotate. During charging, the first cam is rotated to a first position that prevents the second end of the mechanical lock from being pressed downward to the unlocked position to prevent the first and second engagement portions from being accidentally unlocked. Therefore, the reliable locking of the charging plug can be conveniently realized through the cam with smaller volume, thereby being beneficial to the miniaturization of the charging plug and reducing the manufacturing cost.

Description

Charging plug and charging pile including the charging plug

Technical Field

The invention relates to a charging plug and a charging pile comprising the charging plug, and in particular to a charging plug and a charging pile suitable for charging an electric vehicle.

Background technique

Fuel-powered vehicles emit a large amount of pollutants, which is the main factor of air pollution. Especially in international metropolises, the air pollution problem caused by fuel-powered vehicles is more prominent. In order to protect the environment and reduce air pollution, all countries are committed to developing electric vehicles, because electric vehicles directly use electricity and do not emit any pollutants.

Electric vehicles need to be charged frequently. In order to facilitate charging of electric vehicles, at present, electric vehicles are generally charged through charging piles with charging plugs (or charging guns). When charging, the charging plug is directly inserted into the charging socket on the electric vehicle to complete the charging of the electric vehicle, which is very convenient.

According to the national standard, when charging an electric vehicle, in order to ensure charging safety, during the charging process, the charging plug must be reliably locked to the charging socket of the electric vehicle and cannot be unplugged from the charging socket of the electric vehicle. In the prior art, a mechanical locking device and an electronic safety device (or electronic lock) are generally installed on the charging plug. When charging, the mechanical locking device on the charging plug is locked with the charging socket on the electric vehicle, and the electronic safety device keeps the mechanical locking device in a locked state to prevent the mechanical locking device from being accidentally unlocked.

In the prior art, the electronic safety device on the charging plug generally adopts an electromagnet, and the linear motion of the electromagnet is used to realize the reliable locking of the mechanical locking device. However, such an electronic safety device occupies a large space, is not conducive to the miniaturization of the charging plug, and has a high cost.

Summary of the invention

The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

According to one aspect of the present invention, there is provided a charging plug, comprising: a housing; and a mechanical lock pivotally mounted on the housing. The mechanical lock has a first end, a second end and a pivot point between the first end and the second end, and a first engaging portion is formed on the first end of the mechanical lock. During charging, the front end of the charging plug is plugged into the charging socket, and the first engaging portion on the charging plug is locked with the second engaging portion on the charging socket. At the end of charging, the lock between the first engaging portion and the second engaging portion can be released by pressing the second end of the mechanical lock downward to an unlocking position. The charging plug also includes an electronic lock mounted on the housing, the electronic lock including: a first cam; and a driver, adapted to drive the first cam to rotate. During charging, the first cam is rotated to a first position that prevents the second end of the mechanical lock from being pressed downward to the unlocking position, thereby preventing the first engaging portion and the second engaging portion from being accidentally unlocked.

According to an exemplary embodiment of the present invention, at the end of charging, the first cam is rotated to a second position allowing the second end of the mechanical lock to be pressed downward to the unlocking position, thereby allowing the lock between the first engaging portion and the second engaging portion to be released.

According to another exemplary embodiment of the present invention, the electronic lock further includes a position detection device suitable for detecting the position of the first cam.

According to another exemplary embodiment of the present invention, the position detection device includes a second cam and a micro switch, and the driver is suitable for simultaneously driving the first cam and the second cam to rotate; when the first cam is rotated to the first position, the second cam presses the micro switch so that the micro switch switches from an open state to a closed state; when the first cam is rotated to the second position, the second cam is not in contact with the micro switch, and the micro switch is in an open state.

According to another exemplary embodiment of the present invention, a bottom protrusion corresponding to the first cam is formed on the bottom of the second end of the mechanical lock; when the first cam is rotated to the first position, the first cam directly abuts against the bottom protrusion of the second end of the mechanical lock to prevent the second end of the mechanical lock from being pressed.

According to another exemplary embodiment of the present invention, a bottom protrusion corresponding to the first cam is formed on the bottom of the second end of the mechanical lock; when the first cam is rotated to the first position, a first gap is provided between the first cam and the bottom protrusion of the second end of the mechanical lock, and the first gap is smaller than the gap required to press the second end of the mechanical lock downward to the unlocked position, so as to prevent the second end of the mechanical lock from being pressed downward to the unlocked position.

According to another exemplary embodiment of the present invention, when the first cam is rotated to the second position, a second gap is provided between the first cam and the bottom protrusion of the second end of the mechanical lock, and the second gap is larger than the gap required to press the second end of the mechanical lock downward to the unlocked position, so as to allow the second end of the mechanical lock to be pressed downward to the unlocked position.

According to another exemplary embodiment of the present invention, the first cam and the second cam are connected to each other to form a cam assembly.

According to another exemplary embodiment of the present invention, the first cam and the second cam are directly mounted on the output shaft of the driver.

According to another exemplary embodiment of the present invention, the first cam and the second cam are connected to each other via a cylindrical connecting component; and the cylindrical connecting component is sleeved on the output shaft of the driver.

According to another exemplary embodiment of the present invention, an angle between the first cam and the second cam is equal to 90 degrees.

According to another exemplary embodiment of the present invention, the driver is a micro motor.

According to another exemplary embodiment of the present invention, a vent is formed on the shell of the charging plug, and a breathable, waterproof and dustproof film is provided on the vent to allow hot air generated in the shell to be discharged to the outside of the shell through the breathable, waterproof and dustproof film, but prevent external water and dust from entering the shell through the breathable, waterproof and dustproof film.

According to another exemplary embodiment of the present invention, a mounting groove corresponding to the mechanical lock is formed on the housing, and the mechanical lock is accommodated and installed in the mounting groove of the housing.

According to another exemplary embodiment of the present invention, the vent is formed on the bottom wall of the mounting groove of the shell, and there is a gap between the mounting groove and the mechanical lock to allow hot air exhausted from the breathable, waterproof and dustproof membrane to enter the external atmosphere through the gap.

According to another exemplary embodiment of the present invention, a pivot shaft is formed on one of the mounting groove of the shell and the mechanical lock; a pivot hole is formed on the other of the mounting groove of the shell and the mechanical lock; the pivot shaft is assembled in the pivot hole so as to pivotally install the mechanical lock in the mounting groove of the shell.

According to another exemplary embodiment of the present invention, the charging plug also includes a return spring, which is arranged in the mounting groove of the shell; when the pressing force applied to the second end of the mechanical lock disappears, the mechanical lock returns to its initial position under the action of the return spring.

According to another exemplary embodiment of the present invention, the electronic lock is accommodated in a mounting groove of the housing.

According to another exemplary embodiment of the present invention, the charging plug is suitable for charging an electric vehicle.

According to another aspect of the present invention, a charging pile is provided, comprising the above-mentioned charging plug.

In the above-mentioned embodiments of the present invention, when the cam is rotated to a predetermined position, the charging plug can be reliably locked to the charging socket. Therefore, the reliably locking of the charging plug can be conveniently achieved by a cam with a small volume, which is conducive to the miniaturization of the charging plug and reduces the manufacturing cost.

Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram showing an assembly of a charging plug according to an exemplary embodiment of the present invention;

FIG2 is an exploded schematic diagram of a charging plug according to an exemplary embodiment of the present invention;

FIG3 is a perspective schematic diagram showing an electronic lock in the charging plug shown in FIG1 and FIG2 ;

FIG4 is a cross-sectional view of the charging plug shown in FIG1 , wherein the charging plug is in a charging state and the first cam of the electronic lock is in a first position;

FIG5 is a partial enlarged schematic diagram of the charging plug shown in FIG4 , wherein the charging plug is in a charging state and the first cam of the electronic lock is in a first position;

FIG6 is a cross-sectional view of the charging plug shown in FIG1 , wherein the charging plug is in a non-charging state and the first cam of the electronic lock is in a second position; and

FIG. 7 is a partial enlarged schematic diagram of the charging plug shown in FIG. 6 , wherein the charging plug is in a non-charging state and the first cam of the electronic lock is in a second position.

Detailed ways

The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

According to an overall technical concept of the present invention, a charging plug is provided, comprising: a housing; and a mechanical lock pivotally mounted on the housing. The mechanical lock has a first end, a second end and a pivot fulcrum located between the first end and the second end, and a first engaging portion is formed on the first end of the mechanical lock. During charging, the front end of the charging plug is plugged into the charging socket, and the first engaging portion on the charging plug is locked with the second engaging portion on the charging socket. At the end of charging, the lock between the first engaging portion and the second engaging portion can be released by pressing the second end of the mechanical lock downward to an unlocking position. The charging plug also includes an electronic lock mounted on the housing, the electronic lock including: a first cam; and a driver, adapted to drive the first cam to rotate. During charging, the first cam is rotated to a first position that prevents the second end of the mechanical lock from being pressed downward to the unlocking position, thereby preventing the first engaging portion and the second engaging portion from being accidentally unlocked.

FIG1 is a schematic diagram showing an assembly of a charging plug according to an exemplary embodiment of the present invention; FIG2 is a schematic diagram showing an exploded view of a charging plug according to an exemplary embodiment of the present invention; and FIG3 is a schematic diagram showing a three-dimensional view of an electronic lock in the charging plug shown in FIGS. 1 and 2 .

As shown in FIGS. 1 , 2 and 3 , in the illustrated embodiment, the charging plug mainly includes a housing 100, a mechanical lock 200 and electronic locks 310, 321, 322, 330. The mechanical lock 200 is pivotally mounted on the housing 100. The mechanical lock 200 has a first end 210, a second end 220 and a pivot point between the first end 210 and the second end 220. A first engaging portion 211 is formed on the first end 210 of the mechanical lock 200. In one embodiment of the present invention, the first engaging portion 211 may be a hook portion. The electronic locks 310, 321, 322, 330 are mounted on the housing 100.

Figure 4 shows a cross-sectional view of the charging plug shown in Figure 1, wherein the charging plug is in a charging state and the first cam 321 of the electronic lock is in a first position; Figure 5 shows a partially enlarged schematic view of the charging plug shown in Figure 4, wherein the charging plug is in a charging state and the first cam 321 of the electronic lock is in a first position.

As shown in Figures 4 and 5, in the illustrated embodiment, when the charging plug is in the charging state, the front end portion 101 of the charging plug is plugged into the charging socket (not shown), and the first engaging portion 211 on the charging plug is locked together with the second engaging portion (not shown) on the charging socket.

Please continue to refer to FIG. 4 and FIG. 5 . In the illustrated embodiment, the electronic lock comprises: a first cam 321 ; and a driver 310 , which is suitable for driving the first cam 321 to rotate.

As shown in FIGS. 4 and 5 , in the illustrated embodiment, when the charging plug is in the charging state, the first cam 321 is rotated to a first position that prevents the second end 220 of the mechanical lock 200 from being pressed downward to an unlocked position, thereby preventing the first engaging portion 211 and the second engaging portion from being accidentally unlocked.

Figure 6 shows a cross-sectional view of the charging plug shown in Figure 1, wherein the charging plug is in a non-charging state and the first cam 321 of the electronic lock is in the second position; and Figure 7 shows a partially enlarged schematic view of the charging plug shown in Figure 6, wherein the charging plug is in a non-charging state and the first cam 321 of the electronic lock is in the second position.

As shown in FIGS. 6 and 7 , in the illustrated embodiment, when the charging plug is in a non-charging state, the first cam 321 is rotated to a second position that allows the second end 220 of the mechanical lock 200 to be pressed downward to an unlocked position, thereby allowing the lock between the first engaging portion 211 and the second engaging portion to be released.

As shown in FIGS. 3 to 7 , in the illustrated embodiments, the electronic lock further includes position detection devices 322 , 330 adapted to detect the position of the first cam 321 .

In an exemplary embodiment of the present invention, as shown in Figures 3 to 7, the position detection devices 322, 330 include a second cam 322 and a micro switch 330. The driver 310 is adapted to simultaneously drive the first cam 321 and the second cam 322 to rotate.

In one embodiment of the present invention, when the first cam 321 is rotated to the first position shown in Figures 4 and 5, the second cam 322 presses the micro switch 330, so that the micro switch 330 is switched from the open state to the closed state. When the first cam 321 is rotated to the second position shown in Figures 6 and 7, the second cam 322 does not contact the micro switch 330, and the micro switch 330 is in the open state.

In this way, the position of the first cam 321 can be determined according to the state of the micro switch 330. In the illustrated embodiment, when the micro switch 330 is in a closed state, it can be determined that the first cam 321 is in the first position, and when the micro switch 330 is in an open state, it can be determined that the first cam 321 is in the second position.

As shown in FIGS. 4 to 7 , in an exemplary embodiment of the present invention, a bottom protrusion 221 corresponding to the first cam 321 is formed on the bottom of the second end 220 of the mechanical lock 200 .

As shown in FIGS. 4 and 5 , when the first cam 321 is rotated to the first position, the first cam 321 directly abuts against the bottom protrusion 221 of the second end 220 of the mechanical lock 200 to prevent the second end 220 of the mechanical lock 200 from being pressed.

However, the present invention is not limited to the illustrated embodiment. In another embodiment of the present invention, when the first cam 321 is rotated to the first position shown in Figures 4 and 5, there is a first gap between the first cam 321 and the bottom protrusion 221 of the second end 220 of the mechanical lock 200, and the first gap is smaller than the gap required to press the second end 220 of the mechanical lock 200 downward to the unlocked position to prevent the second end 220 of the mechanical lock 200 from being pressed downward to the unlocked position.

As shown in Figures 6 and 7, when the first cam 321 is rotated to the second position, a second gap is provided between the first cam 321 and the bottom protrusion 221 of the second end 220 of the mechanical lock 200, and the second gap is larger than the gap required to press the second end 220 of the mechanical lock 200 downward to the unlocked position, so as to allow the second end 220 of the mechanical lock 200 to be pressed downward to the unlocked position.

As shown in Fig. 3, Fig. 5 and Fig. 7, in the illustrated embodiment, the first cam 321 and the second cam 322 are connected to each other to form a cam assembly. The first cam 321 and the second cam 322 are directly mounted on the output shaft 311 of the driver 310.

In an exemplary embodiment of the present invention, as shown in FIGS. 3 , 5 and 7 , the first cam 321 and the second cam 322 are connected to each other via a cylindrical connecting member 323 ; and the cylindrical connecting member 323 is mounted on the output shaft 311 of the driver 310 .

In the illustrated embodiment, as shown in FIGS. 3 to 7 , the driver 310 may be a micro motor.

In an exemplary embodiment of the present invention, as shown in Figures 3, 5 and 7, the first cam 321 and the second cam 322 are arranged to have an angle therebetween, and for ease of control, the angle may be equal to 90 degrees. However, the present invention is not limited to the illustrated embodiment, and the angle between the first cam 321 and the second cam 322 may also be any angle not equal to 90 degrees.

As shown in FIG. 2 , in an exemplary embodiment of the present invention, a vent 120 is formed on the housing 100 of the charging plug, and a breathable, waterproof and dustproof membrane 121 is provided on the vent 120 to allow hot air generated in the housing 100 to be discharged to the outside of the housing 100 via the breathable, waterproof and dustproof membrane 121, but to prevent external water and dust from entering the housing 100 via the breathable, waterproof and dustproof membrane 121.

As shown in FIG. 1 and FIG. 2 , in an exemplary embodiment of the present invention, a mounting groove 110 corresponding to the mechanical lock 200 is formed on the housing 100 , and the mechanical lock 200 is accommodated and installed in the mounting groove 110 of the housing 100 .

As shown in Figures 1 and 2, in the illustrated embodiment, the vent 120 is formed on the bottom wall of the mounting groove 110 of the housing 100, and there is a gap between the mounting groove 110 and the mechanical lock 200 to allow hot air exhausted from the breathable, waterproof and dustproof membrane 121 to enter the external atmosphere through the gap.

As shown in Figures 1 and 2, in the illustrated embodiment, a pivot shaft 130 is formed on one of the mounting groove 110 of the housing 100 and the mechanical lock 200; a pivot hole 230 is formed on the other of the mounting groove 110 of the housing 100 and the mechanical lock 200; the pivot shaft 130 is assembled in the pivot hole 230 so that the mechanical lock 200 is pivotally mounted in the mounting groove 110 of the housing 100.

As shown in FIGS. 1 and 2 , in the illustrated embodiment, the charging plug further includes a return spring 400 , which is disposed in the mounting groove 110 of the housing 100 ; when the pressing force applied to the second end 220 of the mechanical lock 200 disappears, the mechanical lock 200 returns to its initial position under the action of the return spring 150 .

As shown in FIGS. 2 , 4 and 6 , in the illustrated embodiment, the electronic locks 310 , 321 , 322 , 323 , 330 are received in the mounting groove 110 of the housing 100 .

In an exemplary embodiment of the present invention, as shown in FIG. 1 to FIG. 7 , the charging plug is suitable for charging an electric vehicle or other electric devices.

In another exemplary embodiment of the present invention, a charging pile is further disclosed. The charging pile may include the charging plug in any of the aforementioned embodiments.

The charging plug and charging pile in the aforementioned embodiments of the present invention can be used to charge electric vehicles or other electric devices.

Those skilled in the art can understand that the embodiments described above are exemplary and can be improved by those skilled in the art. The structures described in various embodiments can be freely combined without causing conflicts in structure or principle.

Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementations of the present invention and should not be construed as limiting the present invention.

Although some embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the scope of which is defined by the claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element reference signs in the claims shall not be construed as limiting the scope of the present invention.

Claims (19)

1. A charging plug, which comprises a plug body and a plug body, comprising the following steps:

a housing (100); and

a mechanical lock (200) pivotally mounted on the housing (100),

wherein,

the mechanical lock (200) has a first end (210), a second end (220) and a pivot point between the first end (210) and the second end (220), a first engagement portion (211) is formed on the first end (210) of the mechanical lock (200),

during charging, the front end part (101) of the charging plug is plugged into a charging socket, and a first joint part (211) on the charging plug is locked with a second joint part on the charging socket,

at the end of charging, the locking between the first engagement portion (211) and the second engagement portion can be released by pressing the second end (220) of the mechanical lock (200) downward to an unlocked position,

the charging plug further includes an electronic lock mounted on the housing (100), the electronic lock including:

a first cam (321);

a driver (310) adapted to drive the first cam (321) in rotation,

during charging, the first cam (321) is driven by the driver to rotate to a first position that prevents the second end (220) of the mechanical lock (200) from being pressed downward to the unlocked position, thereby preventing the first engagement portion (211) from being accidentally unlocked from the second engagement portion; and

position detection means adapted to detect the position of the first cam (321), the position detection means comprising a second cam (322) and a micro switch (330) such that:

when the first cam (321) is rotated to the first position, the second cam (322) presses the micro switch (330) so that the micro switch is switched from an open state to a closed state,

when the first cam (321) is rotated to a second position that allows the second end (220) of the mechanical lock (200) to be pressed downward to the unlocked position, the second cam (322) is out of contact with the microswitch (330), which is in an off state.

2. A charging plug according to claim 1, wherein:

at the end of charging, the first cam (321) is rotated to the second position, allowing the lock between the first engagement portion (211) and the second engagement portion to be released.

3. A charging plug according to claim 2, wherein:

the driver (310) is adapted to simultaneously drive the first cam (321) and the second cam (322) in rotation.

4. A charging plug according to claim 3, wherein:

a bottom protrusion (221) corresponding to the first cam (321) is formed on the bottom of the second end (220) of the mechanical lock (200);

when the first cam (321) is rotated to the first position, the first cam (321) directly abuts against a bottom protrusion (221) of the second end (220) of the mechanical lock (200) to prevent the second end (220) of the mechanical lock (200) from being depressed.

5. A charging plug according to claim 3, wherein:

a bottom protrusion (221) corresponding to the first cam (321) is formed on the bottom of the second end (220) of the mechanical lock (200);

when the first cam (321) is rotated to the first position, there is a first clearance between the first cam (321) and a bottom protrusion (221) of the second end (220) of the mechanical lock (200), and the first clearance is less than a clearance required to press the second end (220) of the mechanical lock (200) downward to the unlocked position to prevent the second end (220) of the mechanical lock (200) from being pressed downward to the unlocked position.

6. A charging plug according to claim 4 or 5, characterized in that:

when the first cam (321) is rotated to the second position, there is a second gap between the first cam (321) and a bottom protrusion (221) of the second end (220) of the mechanical lock (200), and the second gap is greater than a gap required to press the second end (220) of the mechanical lock (200) downward to the unlocked position to allow the second end (220) of the mechanical lock (200) to be pressed downward to the unlocked position.

7. A charging plug according to claim 3, wherein:

the first cam (321) and the second cam (322) are connected to each other to form a cam assembly.

8. The charging plug according to claim 7, wherein:

the first cam (321) and the second cam (322) are mounted directly on the output shaft (311) of the driver (310).

9. The charging plug according to claim 8, wherein:

the first cam (321) and the second cam (322) are connected to each other via a tubular connecting member (323); and is also provided with

The tubular connecting part (323) is sleeved on the output shaft (311) of the driver (310).

10. The charging plug according to claim 9, wherein:

the angle between the first cam (321) and the second cam (322) is equal to 90 degrees.

11. A charging plug according to claim 1, wherein: the driver (310) is a miniature motor.

12. A charging plug according to claim 3, wherein:

a vent (120) is formed on a housing (100) of the charging plug, and a ventilation waterproof and dustproof film (121) is provided on the vent (120) to allow hot air generated in the housing (100) to be discharged to the outside of the housing (100) via the ventilation waterproof and dustproof film (121), but to prevent external water and dust from entering the housing (100) via the ventilation waterproof and dustproof film (121).

13. The charging plug according to claim 12, wherein:

a mounting groove (110) corresponding to the mechanical lock (200) is formed on the housing (100), and the mechanical lock (200) is accommodated and mounted in the mounting groove (110) of the housing (100).

14. The charging plug according to claim 13, wherein:

the vent (120) is formed on the bottom wall of the mounting groove (110) of the housing (100) with a gap between the mounting groove (110) and the mechanical lock (200) to allow hot air discharged from the air-permeable waterproof dustproof film (121) to enter the outside atmosphere through the gap.

15. A charging plug according to claim 14, wherein:

-forming a pivot shaft (130) on one of the mounting groove (110) of the housing (100) and the mechanical lock (200);

-forming a pivot hole (230) in the other of the mounting slot (110) of the housing (100) and the mechanical lock (200);

the pivot shaft (130) fits in the pivot hole (230) to pivotally mount the mechanical lock (200) into the mounting slot (110) of the housing (100).

16. The charging plug according to claim 13, wherein:

the charging plug further comprises a return spring (400), the return spring (400) being arranged in a mounting groove (110) of the housing (100);

when the pressing force applied to the second end (220) of the mechanical lock (200) disappears, the mechanical lock (200) is restored to the original position by the return spring (400).

17. The charging plug according to claim 13, wherein:

the electronic lock is received in a mounting groove (110) of the housing (100).

18. A charging plug according to claim 1, wherein: the charging plug is suitable for charging the electric automobile.

19. A fill electric pile, its characterized in that: the charging pile comprises the charging plug of any one of claims 1 to 18.