CN109334492B

CN109334492B - Fill electric pile subassembly convenient to carry out operation of charging to electric automobile

Info

Publication number: CN109334492B
Application number: CN201811151398.3A
Authority: CN
Inventors: 刘悦; 钟荣栋; 徐忠良; 李同兵
Original assignee: Rocking Energy Intelligent Technology Co Ltd
Current assignee: Rocking Energy Intelligent Technology Co Ltd
Priority date: 2018-09-29
Filing date: 2018-09-29
Publication date: 2024-02-20
Anticipated expiration: 2038-09-29
Also published as: CN109334492A

Abstract

The invention relates to the technical field of charging piles, in particular to a charging pile assembly which is convenient for charging an electric automobile, an operator can insert a docking plug into a power input interface of the charging pile by arranging the docking plug and an adapter on the charging pile, and power is taken from an alternating current power grid through the docking plug, and electric energy is transmitted to the electric automobile through a charging gun, so that the normal power supply function of the charging pile is realized; operators can also insert the adapter into the power input interface of the charging pile, power is taken from the electric automobile through the charging gun, power is supplied to other electric automobiles through the adapter, and the automobile-automobile interconnection rescue is realized. Therefore, only one device needs to be stored in the trunk of the vehicle owner, and the crowded and messy storage space of the trunk is avoided. In addition, when carrying out car interconnection rescue, only need to install the electricity end of getting of adapter and discharge end respectively on filling electric pile A and filling the female first socket of electric pile B, fill electric pile A and will automatic operation charge rifle input mode, fill electric pile B and will automatic operation charge rifle output mode, the operation is very simple and convenient, can save operating personnel's operation link, avoids makeing mistakes.

Description

Fill electric pile subassembly convenient to carry out operation of charging to electric automobile

Technical Field

The invention relates to the technical field of charging piles, in particular to a charging pile assembly convenient for charging an electric automobile.

Background

At present, an electric automobile owner generally stores mobile charging equipment and discharging equipment in a trunk of the electric automobile, and uses the mobile charging equipment to take electricity from occasions of the electric automobile owner/other commercial power sockets to charge the electric automobile; if the electric vehicle is in danger of electricity in the road and needs to be saved, the electric vehicle is powered by the discharging equipment.

The mobile charging device is an existing portable charging pile (also called a portable charger or a portable charging pile), and the structure is as shown in fig. 1, wherein a power plug 1 belongs to a power taking end and is used for being connected with an alternating current power grid, and a charging gun 3 belongs to a discharging end and is used for being connected with an electric automobile. When the electric car charging device is used, a car owner needs to take out the portable charging pile, the power plug 1 of the portable charging pile is communicated with an alternating current power grid to take out electricity, and the electric car is powered by the charging gun 3.

Most of the discharging equipment is as the charging connector in the prior patent ZL201210590312.3, the charging connector is provided with two charging gun connectors (namely charging guns), and the two charging gun connectors are respectively inserted into two electric vehicles, so that the two electric vehicles are mutually communicated. When in use. The car owner needs to take out the charging connector, then controls the electric car with electricity (power supply car for short) to be in a discharging mode, and the electric car without electricity (power receiving car for short) to be in a charging mode, and then inserts the two charging gun connectors into the power supply car and the power receiving car respectively, so that the power supply car charges the power receiving car through the charging connector, and mutual rescue between the cars is realized.

In the prior art, the charging equipment and the discharging equipment are stored in the trunk of the car by the car owner, so that the storage space of the trunk is crowded and messy, and the customer experience is poor; secondly, a plurality of sets of equipment are arranged, the operation modes of each set of equipment are different, the error of the operation of a car owner is easy to cause, and the operation is inconvenient.

Disclosure of Invention

The invention aims to provide a charging pile assembly which is convenient for charging an electric automobile, and the charging pile assembly not only can realize a normal charging function, but also can realize mutual rescue between automobiles.

To this end, a charging stake subassembly convenient to charge the operation to electric automobile is provided, includes:

the charging pile is provided with a power input interface, a working circuit and a charging gun which are connected in sequence;

the front end of the butt joint plug is a standard power taking plug, and the rear end of the butt joint plug can be in butt joint with a power input interface of the charging pile;

the adapter is provided with a power taking end and a discharging end which can be in butt joint with the power input interface;

the charging gun comprises a charging gun body, a charging gun input mode, a charging gun output mode, a charging gun input mode, a trigger switch connected with the working circuit, a charging gun output mode and a charging gun input mode, wherein the charging gun output mode corresponds to the charging gun input mode through a discharging end butt joint power input interface of a butt joint plug or an adapter, the charging gun input mode corresponds to a power taking end butt joint power input interface of the adapter, and the two working modes are switched by the trigger switch.

The discharging end of the docking plug or the adapter is docked with the power input interface to trigger the trigger switch to send out an identification signal, so that the working circuit is switched to a corresponding working mode; and/or the power-taking end of the adapter is connected with the power input interface in a butt joint way, the trigger switch is triggered to send out an identification signal, and then the working circuit is switched to a corresponding working mode.

Further, the trigger switch is provided with at least three connecting terminals respectively connected with the working circuit, and when the butt joint plug/adapter is plugged and butt-jointed with the power input interface, two connecting terminals are short-circuited, so that the identification is realized.

As one implementation mode, the power supply terminal is specifically a power pin, and the power supply input interface is specifically a socket; one or more of the rear end of the butt joint plug, the power-taking end of the adapter and the discharging end of the adapter is/are provided with at least two signal pins which are in short circuit with each other; the end face of the socket is provided with a pin hole for inserting the signal pin and the power pin, and the connecting terminal of the trigger switch is hidden in the pin hole; when the butt-joint plug/adapter is plugged into the socket, the two mutually short-circuited signal pins are respectively abutted against the connecting terminals of the trigger switch, so that the identification is realized. Further, in the rear end of the docking plug, the power taking end of the adapter and the discharging end of the adapter, the end face with pins is provided with grooves, and the pins of the docking plug/adapter for being inserted into the female socket are located in the inner space of the grooves. Further, the socket is specifically a female socket.

As another embodiment, the power input interface is a plug, which has a power pin and at least three signal pins extending out of the end face, and the signal pins are used as connection terminals of the trigger switch; the rear end of the butt-joint plug, the power taking end of the adapter and the discharging end of the adapter are sockets, the end face of each socket is provided with a pin hole for inserting signal pins and power pins, at least two connecting terminals which are mutually in short connection are hidden in the pin holes, and when the plug is inserted into the butt-joint plug/adapter, the two connecting terminals are respectively in butt joint with corresponding signal pins so as to realize the identification. Further, the power input interface is connected with the charging gun through a single-phase wire in the working circuit, at least two relays are respectively connected in series with an L wire and an N wire in the single-phase wire, and all the relays are triggered to be conducted after the plug is inserted into the butt-joint plug/adapter.

The charging pile is a portable charging pile or a movable charging pile.

The beneficial effects are that:

the charging pile is provided with the butt joint plug and the adapter, an operator can insert the butt joint plug into the power input interface of the charging pile by arranging the butt joint plug and the adapter, and power is taken from an alternating current power grid by the butt joint plug and is transmitted to the electric automobile through the charging gun, so that the normal power supply function of the charging pile is realized; operators can also insert the adapter into the power input interface of the charging pile, power is taken from the electric automobile through the charging gun, power is supplied to other electric automobiles through the adapter, and the automobile-automobile interconnection rescue is realized. When the car interconnection rescue is carried out, only the electricity taking end and the electricity discharging end of the adapter are required to be respectively arranged on the female socket of the charging pile A and the female socket of the charging pile B, the charging pile A can automatically operate the charging gun input mode, the charging pile B can automatically operate the charging gun output mode, the operation is very simple and convenient, the operation links of operators can be saved, and errors are avoided.

The charging pile provided by the invention has the functions of charging the electric automobile and carrying out the interconnection rescue of the automobile and the automobile, so that the multifunctional electric automobile is realized, and the trunk of an automobile owner only needs to store one device, so that the crowded and messy storage space of the trunk is avoided.

Drawings

The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.

Fig. 1 is a schematic structural view of a conventional charging pile.

Fig. 2 is an internal circuit diagram of the charging pile body in embodiment 1.

Fig. 3 is a schematic structural view of the charging pile in embodiment 1.

Fig. 4 is a partial enlarged view of the charging pile in embodiment 1.

Fig. 5 is a schematic structural diagram of the rear end of the docking plug, the power taking end of the adapter and the discharging end of the adapter (the anti-falling concave clamping ring and the waterproof ring are omitted in the figure).

Fig. 6 is a schematic diagram illustrating the connection of the charging post in embodiment 1 in the charging gun input mode.

Fig. 7 is another structural schematic diagram of the charging pile in embodiment 1.

Fig. 8 is a schematic structural view of a charging pile according to embodiment 2.

Detailed Description

The invention will be further described with reference to the following examples.

Example 1

Fig. 2 is an internal circuit diagram of the charging pile a of the present embodiment, which is an ac portable charging pile. The two ends of the pile body 2 of the charging pile A are respectively provided with a power input interface 11 and a charging gun 3, and the power input interface 11 is connected with the charging gun 3 through single-phase wires (L wire, N wire and E wire).

The working circuit in the pile body comprises a charge-discharge control circuit 22 and a controller 21; the charge/discharge control circuit 22 includes four relays K1, K2, K3, and K4. And relays K1, K3 are respectively connected in series in L lines in the single-phase electric wire, relays K2, K4 are respectively connected in series in N lines in the single-phase electric wire, and controller 21 respectively controls on and off of relays K1, K2, K3, K4. A conventional signal wire (not shown in the figure), including CP wire and CC wire, is connected between the pile body 2 and the charging gun 3, and the charging gun 3 is inserted into a charging and discharging interface of the electric vehicle, so that the signal wire is connected with the vehicle-mounted BMS system.

When in use, the controller 21 enables the relays K1, K2, K3 and K4 to be conducted, the power input interface 11 is communicated with the charging gun 3, and electric energy can be transmitted to the charging gun 3 through the power input interface 11 or can be transmitted to the power input interface 11 through the charging gun 3.

IN embodiment 1, see fig. 3, the power input interface 11 is specifically a female socket, see fig. 4, and the end of the female socket is provided with seven butt pinholes, each butt pinhole is provided with a connecting terminal formed by a metal clip/sleeve, wherein the connecting terminals IN the three butt pinholes are respectively called in_ L, IN _ N, IN _e, and the three connecting terminals are respectively connected with L line, N line and E line IN the pile body 2, so as to transmit electric energy to the corresponding electric wires; the connection terminals IN the other four docking pinholes are called in_com, in_plug, in_ A, IN _b, respectively, which are connected to the controller 21 IN the pile body 2, respectively.

Referring to fig. 5, the charging pile a is configured with a male docking plug 4, and three pins are provided at the front end of the plug, and the pins may be used to plug into a socket of a national standard, or may be used to plug into a socket of a non-national standard such as an european standard or a american standard. The rear end of the butt joint plug 4 is provided with a groove, the bottom of the groove is vertically provided with five butt joint pins, the periphery side of each butt joint pin is provided with a plastic protective wall 43 surrounding the butt joint pin, the gap between the inner wall of the plastic protective wall 43 and the butt joint pin is smaller than 2.5mm (national safety standard value), the height of the butt joint pin is lower than that of the plastic protective wall 43, so that the butt joint pin can be hidden in the plastic protective wall 43, and the outward end face of the butt joint pin is provided with a plastic cap 44 to prevent hands from contacting the end face of the butt joint pin. After the arrangement, operators can not stretch hands into the gaps, so that the hands can be prevented from touching the side walls of the butt pins, and the situation that the operators touch the butt pins by mistake to get an electric shock when the butt plug 4 is independently plugged on a mains supply socket (not mounted on a female socket) is avoided.

Referring to fig. 4 and 5, three of five docking pins at the rear end of the docking plug 4 are power pins 4A for respectively connecting with three pins at the front end of the docking plug 4, and the three power pins 4A are respectively used for in_ L, IN _ N, IN _e of the docking female socket; the other two are signal pins 4B, the signal pins 4B being shorted together inside the docking PLUG 4 and being used for in_com, in_plug of the docking female socket, respectively. When the docking PLUG 4 is mounted on the female socket, five docking pins at the rear end of the docking PLUG 4 are inserted into corresponding docking pin holes at the end of the female socket, so that three pins at the front end of the docking PLUG 4 are respectively connected with in_ L, IN _ N, IN _e of the female socket, while in_com and in_plug of the female socket are shorted, and then an electric signal is sent to the controller 21 IN the pile body 2. It should be noted that, because the butt stitch is located at the bottom of the groove, it will not be touched by a human body, and the risk of electric shock due to careless contact will not occur. The shape of the female socket and the inner shape of the groove are mutually contoured so as to be embedded into the groove. In addition, in fig. 5, the hole left beside each power pin 4A is a spare hole, and in the case of large current carrying, a pin may be added in the spare hole, and the pin is connected in parallel with the corresponding power pin 4, so as to form a parallel pin.

Referring to fig. 4, a ring of anti-falling concave snap ring 41 is provided on the inner wall of the groove at the rear end of the docking plug 4, a ring of anti-falling convex snap ring 111 is correspondingly provided on the outer side wall of the female socket, and when the docking plug 4 is mounted on the female socket, the anti-falling convex snap ring 111 falls into the anti-falling concave snap ring 41 to realize the clamping connection. The waterproof ring 42 made of elastic rubber is further arranged on the inner wall of the groove at the rear end of the butt-joint plug 4, the waterproof ring 42 is semi-embedded into the inner wall of the groove, and part of the waterproof ring extends out of the inner wall of the groove, so that when the butt-joint plug 4 is arranged on a female socket, the waterproof ring is tightly attached to the outer wall of the female socket through interference fit, and a waterproof effect is achieved.

The charging pile A is also provided with an adapter 5, one end of the adapter 5 is an electricity taking end, and compared with the rear end structure of the butt joint plug 4, the electricity taking end is identical with the butt joint plug except for slightly adjusting the positions of the two signal pins. Specifically, five butt-joint pins are vertically arranged at the bottom of the groove of the power-taking end, three of the butt-joint pins are power-supply pins and are respectively connected with an L line, an N line and an E line IN the adapter 5 and used for respectively butt-jointing IN_ L, IN _ N, IN _E of the female socket; the other two are signal pins which are short-circuited inside the adapter 5 for respectively interfacing with in_com, in_a of the female socket. The other end of the adapter 5 is a discharge end, and similarly, compared with the rear end structure of the docking plug 4, the discharge end only adjusts the positions of two signal pins. Specifically, five butt-joint pins are also arranged at the bottom of the groove of the discharging end, three of the five butt-joint pins are power pins, and are respectively connected with an L line, an N line and an E line IN the adapter 5 and used for respectively butt-jointing the IN_ L, IN _ N, IN _E of the female socket. The other two are signal pins, which are also internal short circuits, for respectively interfacing with in_com and in_b of the female socket. It should be noted that, inside the adapter 5, the three power pins of the discharging end are electrically connected to the three power pins of the power taking end respectively. When the power-taking end of the adapter 5 is mounted on the female socket, the in_com and in_a of the female socket are shorted; when the discharge end of the adapter 5 is mounted on the female socket, the in_com and in_b of the female socket are shorted.

Further, as shown in fig. 3, the side surface of the adapter 5 is provided with an indefinite number of discharge sockets 51, and each discharge socket 51 takes electricity from a single-phase electric wire inside the adapter 5, so that the adapter 5 has a function of power distribution and can supply power to the household appliances.

Further, a conventional automatic guard gate is provided in each pinhole at the end of the female socket, the automatic guard gate being pushed open by the pins during the installation of the docking plug 4/adapter 5 into the female socket; after the docking plug 4/adapter 5 is disengaged from the female socket, the automatic protective door is automatically closed. The automatic protection door is usually arranged at the jack of the existing socket, and the implementation principle and specific structure thereof belong to the prior art and are not repeated here.

When the charging pile is used, the charging pile A has two working modes, namely a charging gun output mode and a charging gun input mode. The charging gun output mode is a mode that the docking plug 4 takes electricity from the mains supply and supplies power to the electric automobile through the charging gun 3; the charging gun input mode is a mode that the charging gun 3 takes electricity from a power supply automobile and supplies power to a power receiving automobile through the adapter 5.

If the charging gun output mode is to be operated, an operator needs to install the female socket of the charging pile A on the docking plug 4, insert the docking plug 4 into a commercial power socket, and insert the charging gun 3 into a charging and discharging interface of the electric automobile. Since the in_com and in_plug of the female socket are shorted when the docking PLUG 4 is mounted on the female socket, an electrical signal is transmitted to the controller 21, and the controller 21 knows that the female socket has been plugged into the utility socket through the docking PLUG 4 according to the electrical signal, and should operate the charging gun output mode, the controller further transmits a PWM signal to the BMS system of the electric vehicle through the CP line. According to the national standard, if the vehicle end needs to be charged, the BMS system determines the connection state of the CC terminals of the charging gun 3 and the vehicle end charging and discharging interface, confirms that the charging gun 3 has been normally inserted into the charging and discharging interface, and changes the voltage amplitude of the PWM signal after receiving the signal, so as to inform the controller 21 that the connection is successful, thereby realizing handshaking. The controller 21 uses the change signal as a feedback signal to identify that the vehicle end needs to be charged, further confirms whether the IN_COM and the IN_PLUG are still IN short circuit after receiving the feedback signal, if yes, considers that the signals of the vehicle end and the PLUG end are successfully matched, and can operate a charging gun output mode, further controls all the relays K1, K2, K3 and K4 to be conducted, so that electric energy taken by the power PLUG 1 can be circulated to the charging gun 3 to charge the vehicle, and the operation of the charging gun output mode is realized; otherwise, the device does not act.

Referring to fig. 6, if the charging gun input mode is to be operated, an operator needs to operate an operation panel on the power supply vehicle first to make the power supply vehicle in the discharge mode. And then the charging gun 3 of the charging pile A is inserted into the power supply automobile, so that the charging gun 3 is electrified. At this time, according to the prior art, the BMS system in the discharging mode actively transmits the PWM signal to the controller 21 by determining the connection state of the CC terminals of the charging gun 3 and the vehicle-end charging/discharging interface, and confirming that the charging gun 3 has been normally inserted into the charging/discharging interface. The controller 21 receives the PWM signal and knows that the charging gun input mode should be operated, but the controller 21 is not operated at this time. The operator then installs the power take-off end of the adapter 5 on the female socket, shorting in_com and in_a of the female socket, and thereby sending an electrical signal to the controller 21. The controller 21 knows that the power take-off end of the adapter 5 is mounted on the female socket according to the electric signal, then further confirms whether the PWM signal is still received, if yes, considers that the signal matching between the vehicle end and the socket end is successful, and can operate the charging gun input mode, further controls the relays K1, K2, K3 and K4 to be conducted, so that the electric energy on the charging gun 3 flows into the adapter 5, and the adapter 5 is powered on. If the controller 21 fails to achieve the matching, the relays K1, K2, K3, and K4 are turned off.

Then, before supplying power to the power receiving vehicle through the adapter 5, the operator first operates the operation panel on the power receiving vehicle to make the power receiving vehicle in a charging mode. Then, another charging pile B (the charging pile B is also a charging pile of the present embodiment) is taken, the discharging end of the adapter 5 is mounted on the female socket of the charging pile B, so that in_com and in_b of the charging pile B are shorted, the controller 21 of the charging pile B knows that the discharging end of the adapter 5 is mounted on the female socket according to the shorting, and the charging gun output mode should be operated, and then sends a PWM signal to the BMS system of the electric vehicle. After the operator inserts the charging gun 3 of the charging pile B into the power receiving automobile, the BMS system of the power receiving automobile also judges the connection state of the charging gun 3 and the CC terminal of the charging and discharging interface at the automobile end, and returns a feedback signal after confirming that the charging gun 3 is normally inserted into the charging and discharging interface. After the controller 21 of the charging pile B receives the feedback signal and confirms that the IN_COM and the IN_B are still IN short circuit, the signals of the vehicle end and the plug end are considered to be successfully matched, and then the relays K1, K2, K3 and K4 of the charging pile B are controlled to be fully conducted, so that the electric energy on the adapter 5 can flow to the charging gun 3 of the charging pile B to charge the power receiving vehicle, the operation of the charging gun input mode is realized, and the purpose of vehicle-vehicle interconnection rescue for supplying power to the power receiving vehicle by the power supplying vehicle is achieved.

In addition, referring to fig. 3, in the charging gun input mode, the discharge socket 51 of the charging pile a is powered, and an operator can supply power to the power receiving car/home appliance through the discharge socket 51.

In embodiment 1, the charging pile a has both the docking plug 4 and the adapter 5, and has both the function of charging the electric vehicle and the function of performing vehicle-vehicle interconnection rescue, thereby realizing multiple functions. When the car interconnection rescue is carried out, only the electricity taking end and the electricity discharging end of the adapter 5 are required to be respectively arranged on the female socket of the charging pile A and the female socket of the charging pile B, the charging pile A can automatically operate the charging gun input mode, the charging pile B can automatically operate the charging gun output mode, the operation is very simple and convenient, the operation links of operators can be saved, and errors are avoided.

Referring to fig. 6, in the use process of the charging pile a of the present invention, the network module 24 disposed on the pile body 2 may transmit the operation information of the charging pile a to the cloud server. After the owner downloads the shared APP matched with the charging pile A by using the mobile terminal such as a mobile phone/tablet/computer and the like and installs and registers the shared APP, the mode of the charging pile A can be remotely inquired on the shared APP, and the information such as the charging quantity of the charging pile A can be determined. If the charging pile A is overloaded or out of control, the network module 24 sends out alarm information and sends the alarm information to the sharing APP through the cloud server for display so as to remind the vehicle owner of the alarm information, and the safety problems such as fire disaster are avoided.

The running information of the charging pile A and the historical charging data thereof can be uploaded to a cloud server in real time for backup storage, so that the service life and the service frequency of the charging pile A can be counted conveniently in the later period, and vehicle owners, pile enterprises or vehicle enterprises can analyze according to the counting information, thereby realizing monitoring; the statistical information can also be used as the basis of the design trend of the future charging pile A, so that the vitality of the future charging pile A is improved, and the technical development of the industry is promoted.

The charging pile A is provided with a positioning module 25, in particular a GPS module or a BDS module, and the geographic position of the charging pile A can be positioned in real time in a satellite positioning mode. After the charging pile a obtains the position information, the position information can be uploaded to a cloud server in real time through the network module 24, and the position information is shared by the cloud server to the shared APP. The other car owners can operate the sharing APP on the mobile terminal, find the nearby charging pile A in the electronic map of the sharing APP, then contact the other party through the sharing APP/telephone and other forms, and find the corresponding charging pile A vehicle position according to map navigation after confirming the demand and the supply will.

The pile body 2 is internally provided with a winding reel which is not shown in the drawing so as to wind the single-phase electric wire on the female socket into the pile body 2, wherein the specific structure of the winding reel can be referred to patent application 201810098502.0 of my department. Of course, the take-up reel can also be used for winding single-phase wires on the charging gun 3. It should be noted that the winding reel may be removed, and the shape of the single-phase wire on the female socket or the charging gun 3 may be changed into a spring wire, so as to achieve the purpose of receiving the cable.

Further, the end of the female socket is provided with a conventional waterproof cover to realize a waterproof function, wherein the specific structure of the waterproof cover can be referred to patent application 201320462119.1.

Further, referring to fig. 3, the pile body 2 of the charging pile a is provided with an adapter accommodating groove 231 and a docking plug accommodating groove 232 for accommodating the adapter 5 and the docking plug 4 in the unused state respectively, so as to facilitate the operator to take and place.

The number of the connection terminals on the female socket for connection to the controller 21 may be changed to three, and the three terminals are respectively referred to as S1, S2, and S3. If the butt-joint plug 4 is arranged on the female socket, the S1 and the S2 are short-circuited; if the power-taking end of the adapter 5 is arranged on the female socket, the S2 and the S3 are short-circuited; if the power-taking end of the adapter 5 is mounted on the female socket, the short circuits S1 and S3 can also realize the identification.

IN embodiment 1, the four connection terminals in_com, in_plug, in_ A, IN _b on the female socket are equivalent to a trigger switch, and the shorting pin at the rear end of the docking PLUG 4, the shorting pin at the power taking end of the adapter 5, and the shorting pin at the power discharging end of the adapter 5 are equivalent to a trigger piece, and when the docking PLUG 4 or the adapter 5 is mounted on the female socket, the trigger piece triggers the trigger switch accordingly, so that the trigger switch sends a signal to the controller 21 or forms a connection state of the sending signal. It should be noted that the trigger switch is not limited to the form of the connection terminals in_com, in_plug, in_ A, IN _b, but may be a contact switch with a contact, such as a push button or a toggle switch, connected to the controller 21, IN which case a trigger piece is not required to be provided on the docking PLUG 4 or the adapter 5, and the trigger switch is triggered by manual pressing; the infrared switch triggered by proximity induction without contact is suppressed, in this case, two parallel infrared receivers A, B are arranged at the end of the female socket, an infrared transmitter A 'aligned with the infrared receiver A after being in butt joint is arranged at the power-taking end of the adapter 5, an infrared transmitter B' aligned with the infrared receiver B after being in butt joint is arranged at the discharge end of the adapter 5, and the identification can be realized without arranging an infrared transmitter at the rear end of the butt joint plug 4.

It should be noted that, as shown in fig. 7, the power take-off end structure of the adapter 5 may be arranged in a manner of being interchanged with the end structure of the power input interface 11; and/or the discharge end structure of the adapter 5 may be arranged interchangeably with the end structure of the power input interface 11.

In the structure of the power take-off/discharge end of the adapter 5, the connection terminals may become partially constituted by pins and partially constituted by metal clips/sleeves. The same structure can be applied to the end of the power input interface 11 and the rear end of the docking plug 4.

In addition, in embodiment 1, the charge/discharge control circuit 22 may cancel the relays K3, K4, and the change circuit includes only the relays K1, K2. The pile body 2 is also internally provided with a conventional relay control peripheral circuit, a controller internal circuit, a power module and the like of the charging pile, and the description is omitted here.

Example 2

Embodiment 2 is based on embodiment 1, see fig. 8, in which the end structure of the power input interface 11 is changed to a conventional plug with a connection terminal extending out of the end surface to be exposed, and then the power taking end structure of the adapter 5 and the discharging end structure of the adapter 5 are female sockets; the charge/discharge control circuit 22 is fixed to a circuit constituted by relays K1, K2, K3, and K4.

Because the electric energy flows from the power supply automobile to the plug in the charging gun input mode, the risk of accidental electric shock of an operator caused by the exposed connecting terminal of the plug needs to be considered.

In embodiment 2, in the charging gun input mode, after receiving the PWM signal, the controller 21 on the charging pile a confirms that the plug is inserted into the power take-off end of the adapter 5, and then controls the relays K1, K2, K3, K4 to be turned on, so that the electric energy on the charging gun 3 flows to the plug. Therefore, even if the operator misoperates, the charging gun 3 is inserted into the power supply automobile (at this time, the plug is not inserted into the power taking end of the adapter 5 and is exposed to the air), and the operator does not have electric shock risk because the relays K1, K2, K3 and K4 are not conducted yet.

Considering that alternating current surge or burr can exist in electric energy transmitted by a power supply automobile, a single relay can be influenced by the alternating current surge or burr and is turned on briefly, so that the relays are set to be plural four (K1, K2, K3 and K4), L lines and N lines are respectively two, and the two relays cannot be turned on simultaneously due to the alternating current surge or burr, so that the risk of electric shock of operators can be avoided.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. Fill electric pile subassembly convenient to carry out operation of charging to electric automobile, include:

the method is characterized in that:

the adapter is provided with a power taking end and a discharging end which can be in butt joint with the power input interface, the power taking end and the discharging end are respectively provided with a power terminal, and the two power terminals are connected through a conductor;

the charging pile comprises a trigger switch connected with a working circuit, the working circuit can work in a charging gun output mode and a charging gun input mode, wherein a discharging end docking power input interface of a docking plug or an adapter corresponds to the charging gun output mode, a power taking end docking power input interface of the adapter corresponds to the charging gun input mode, and the two working modes are switched by the trigger switch triggering the working circuit;

the charging pile is a portable charging pile or a movable charging pile;

the discharging end of the butt joint plug or the adapter is butt jointed with the power input interface to trigger the trigger switch to send out an identification signal, so that the working circuit is switched to a corresponding working mode; and/or the power taking end of the adapter is connected with the power input interface in a butt joint mode, the trigger switch is triggered to send out an identification signal, and then the working circuit is switched to a corresponding working mode.

2. The charging pile assembly according to claim 1, wherein the trigger switch has at least three connection terminals respectively connected to the working circuit, at least two of the connection terminals are shorted when the docking plug, the discharging end of the adapter and the power taking end of the adapter are docked with the power input interface, and combinations of the connection terminals shorted by the docking plug, the discharging end of the adapter and the power taking end of the adapter are different from each other, thereby realizing the identification.

3. The charging pile assembly for facilitating the charging operation of an electric vehicle according to claim 2, wherein the power terminals are power pins and the power input interface is a female socket;

one or more of the rear end of the butt joint plug, the power-taking end of the adapter and the discharging end of the adapter is/are provided with at least two signal pins which are in short circuit with each other;

the end face of the female socket is provided with a pin hole for inserting a signal pin and a power pin, and a connecting terminal of the trigger switch is hidden in the pin hole; when the butt joint plug/adapter is inserted into the female socket, the two mutually short-circuited signal pins are respectively abutted with the connecting terminals of the trigger switch so as to realize the identification.

4. A charging pile assembly for facilitating charging operation of an electric vehicle according to claim 3, wherein the end face having pins is notched in the rear end of the docking plug, the power take-off end of the adapter and the discharge end of the adapter, and pins of the docking plug/adapter for insertion into the female socket are located in the inner space of the notch.

5. The charging pile assembly for facilitating the charging operation of an electric vehicle according to claim 2, wherein the power input interface is in particular a plug having a power pin and at least three signal pins extending out of the end face, the signal pins being connection terminals for the trigger switch; the rear end of the butt-joint plug, the power taking end of the adapter and the discharging end of the adapter are sockets, the end face of each socket is provided with a pin hole for inserting signal pins and power pins, at least two connecting terminals which are mutually in short connection are hidden in the pin holes, and when the plug is inserted into the butt-joint plug/adapter, the two connecting terminals are respectively in butt joint with corresponding signal pins so as to realize the identification.

6. The charging post assembly according to claim 5, wherein the power input interface and the charging gun are connected by a single-phase wire in the working circuit, wherein the L-wire and the N-wire of the single-phase wire are respectively connected in series with at least two safety switches, and the plug is inserted into the docking plug/adapter to trigger the conduction of all safety switches.

7. A docking plug, characterized in that it is said docking plug in a charging pile assembly according to any one of claims 1-6.

8. An adapter, characterized in that it is said adapter in a charging pile assembly according to any one of claims 1-6.