High protection electric automobile quick charge is with rifle that charges
Technical Field
The invention relates to a charging gun, in particular to a charging gun for quickly charging a high-protection electric vehicle.
Background
At present, in the process of charging an electric automobile, both a charging pile and a vehicle-mounted standby charger need to be connected with an external power supply through a charging gun for charging operation, but in use, the current charging gun equipment is usually formed by directly connecting a traditional plug and a wire, although the use requirement can be met, the current charging gun equipment often lacks effective circuit protection capability in the charging operation, so that the charging power supply equipment and the electric automobile are easily damaged when faults such as short circuit overload, overlarge current and the like occur in the charging process, and even a fire disaster occurs in serious cases, besides, the structure of the current charging gun equipment is fixed, so that the charging operation convenience and the working efficiency are seriously influenced according to the use requirement in the charging process, and meanwhile, the insulation protection of the current charging gun is only realized through an insulating layer coated outside the plug, therefore, the insulation protection level is relatively low, when accidents such as electric leakage occur, effective insulation protection cannot be achieved on operators, and personal safety of the operators is seriously threatened, so that a brand-new electric automobile charging gun device is urgently required to be developed aiming at the current situation so as to meet the requirement of practical use.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the charging gun for quickly charging the high-protection electric automobile, which has the advantages of simple structure, flexible and convenient use and good universality, can effectively meet the requirements of various operations of different crowds during the charging operation of the electric automobile on one hand, greatly improves the flexibility and convenience of the charging operation on the other hand, realizes the effective insulation isolation between the charging operation part and a charging circuit on the other hand, can effectively control and manage the state in the charging process, can flexibly regulate and control the charging state according to the use requirement, and actively cuts off the charging circuit in time when the charging circuit has the phenomena of overload, short circuit and the like, thereby greatly improving the safety and reliability of the charging operation.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a charging gun for high-protection electric automobile quick charging comprises a gun body, a holding handle, a wiring plug, a charging plug, a current-limiting fuse, an overload protection circuit, a charging and discharging controller and a comprehensive control circuit, wherein the gun body is of a hollow tubular structure, the front end face and the rear end face of the gun body are respectively provided with an insulating sealing end, the insulating sealing ends are coated on the front end face and the rear end face of the gun body and form a charging cavity with a closed cavity structure with the gun body, the wiring plug is embedded in the outer surface of the insulating sealing end on the rear end face of the gun body, the charging plug is embedded in the outer surface of the insulating sealing end on the front end face of the gun body, the wiring plug and the charging plug are electrically connected with each other through wires, the wires are embedded in the charging cavity, the current-limiting fuse, the overload protection circuit and the charging and discharging controller, The charging plug is electrically connected, the overload protection circuit is electrically connected with the conducting wire and is connected with the conducting wire in parallel, the charge-discharge controller is electrically connected with two ends of the conducting wire through an electronic switch, the conducting wire is electrically connected with the current-limiting fuse through the electronic switch, at least one sliding rail is arranged on the outer surface of the gun body and distributed in a closed annular structure around the axis of the gun body, the sliding rails and the gun body are coaxially distributed, at least one holding handle is connected with the outer surface of the gun body in a sliding mode through the sliding rails, a bearing cavity is arranged on the holding handle, the comprehensive control circuit is embedded in the bearing cavity and is electrically connected with the overload protection circuit, the charge-discharge controller and the electronic switch through control data lines, an operation opening is arranged on the outer surface of the holding handle corresponding to the comprehensive control circuit, wire passing holes are arranged on the rear surface of the holding handle and the outer surface of the, The overload protection circuit, the charge-discharge controller and the electronic switch are electrically connected.
Furthermore, the outer surfaces of the gun body and the holding handle are respectively provided with an elastic insulating layer with the thickness not less than 3 mm.
Further, the rifle body before the terminal surface all establish the elastic insulation protective sheath with the rear end face, the elastic insulation protective sheath respectively the cladding outside wiring plug, charging plug and with wiring plug, charging plug coaxial distribution.
Furthermore, charging chamber and bear the weight of the intracavity and all establish the spooler, wire and control data line equally divide and do not respectively with spooler interconnect.
Furthermore, an elastic sealing cover is arranged between the gun body and the holding handle, and the elastic sealing cover is covered on the outer surface of the sliding rail.
Furthermore, the holding handle is of a closed annular structure, and a plurality of anti-skidding grooves are uniformly distributed on the outer surface of the holding handle.
Furthermore, at least one elastic positioning pin is arranged on the contact surface of the holding handle and the sliding rail and is in sliding connection with the sliding rail through the elastic positioning pin.
Furthermore, the integrated control circuit is an automatic control circuit based on an industrial single chip microcomputer, and a wireless data communication device is additionally arranged on the integrated control circuit.
The invention has simple structure, flexible and convenient use and good universality, can effectively meet the requirements of various operations of different crowds during the charging operation of the electric automobile on one hand, greatly improves the flexibility and the convenience of the charging operation, realizes effective insulation isolation between a charging operation part and a charging circuit on the other hand, can effectively control and manage the state in the charging process, can flexibly regulate and control the charging state according to the use requirement, and actively cuts off the charging circuit in time when the charging circuit has the phenomena of overload, short circuit and the like, thereby greatly improving the safety and the reliability of the charging operation.
Drawings
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in figure 1, a high protection electric automobile rapid charging gun, including the gun body 1, grip handle 2, wiring plug 3, charging plug 4, current limiting fuse 5, overload protection circuit 6, charging and discharging controller 7 and integrated control circuit 8, the gun body 1 is hollow tubular structure, its front and rear end surface all set up the insulation seal end 9, insulation seal end 9 cladding gun body 1 front and rear end surface and with the gun body 1 to form the closed cavity structure of the charging chamber 101, wiring plug 3 embedded in the gun body 1 rear end surface insulation seal end 9 external surface, charging plug 4 embedded in the gun body 1 front end surface insulation seal end 9 external surface, wiring plug 3, charging plug 4 through wire 10 mutual electrical connection, wire 10 embedded in charging chamber 101, current limiting fuse 5, overload protection circuit 6, charging and discharging controller 7 all embedded in charging chamber 101, wherein, the current-limiting fuses 5 are at least two, two ends of a lead 10 are respectively and electrically connected with a wiring plug 3 and a charging plug 4 through the current-limiting fuses 5, an overload protection circuit 6 is electrically connected with the lead 10 and is connected with each other in parallel, a charging and discharging controller 7 is respectively and electrically connected with two ends of the lead 10 through an electronic switch 11, the lead 10 is further electrically connected with the current-limiting fuses 5 through the electronic switch 11, the outer surface of a gun body 1 is provided with at least one slide rail 12, the slide rails 12 are distributed in a closed annular structure around the axis of the gun body 1, the slide rails 12 are coaxially distributed with the gun body 1, at least one holding handle 2 is connected with the outer surface of the gun body 1 in a sliding way through the slide rails 12, the holding handle 2 is provided with a bearing cavity 13, an integrated control circuit 8 is embedded in the bearing cavity 102 and is respectively and electrically connected with the overload protection circuit 6, the charging and discharging controller 7 and the electronic switch 11, the corresponding rear surface of the holding handle 2 and the outer surface of the charging cavity 101 are provided with wire passing holes 15, the control data wire 13 is embedded in the wire passing holes 15, and the two ends of the control data wire are respectively and electrically connected with the comprehensive control circuit 8, the overload protection circuit 6, the charge-discharge controller 7 and the electronic switch 11.
In this embodiment, rifle body 1 and 2 surfaces of gripping handle all establish the elastic insulation layer 16 that thickness is not less than 3 millimeters, rifle body 1 preceding terminal surface and rear end face all establish elastic insulation protecting pipe 17, elastic insulation protecting pipe 17 respectively the cladding outside wiring plug 3, charging plug 4 and with wiring plug 3, the coaxial distribution of charging plug 4, charging chamber 101 and bear the weight of and all establish spooler 18 in the chamber 102, wire 10 and control data line 13 equally divide and do not respectively with spooler 18 interconnect.
It is worth noting that an elastic sealing cover 19 is arranged between the gun body 1 and the holding handle 2, the elastic sealing cover 19 covers the outer surface of the slide rail 12, the holding handle 2 is of a closed annular structure, a plurality of anti-slip grooves 20 are uniformly distributed on the outer surface of the holding handle 2, and at least one elastic positioning pin 21 is arranged on the contact surface of the holding handle 2 and the slide rail 12 and is connected with the slide rail 12 in a sliding manner through the elastic positioning pin 21.
In addition, the integrated control circuit 8 is an automatic control circuit based on an industrial single chip microcomputer, and a wireless data communication device is additionally arranged on the integrated control circuit.
In the specific implementation of the invention, the gun body, the holding handle, the wiring plug, the charging plug, the current-limiting fuse, the overload protection circuit, the charging and discharging controller and the comprehensive control circuit are firstly assembled, and then the wiring plug is electrically connected with an external power supply wire for standby application, wherein the effective bearing current of the current-limiting fuse is 1.1-1.5 times of the charging rated working current of the electric automobile.
During charging operation, a worker firstly adjusts the relative working position of the gun body and the holding handle through the slide rail according to the use requirement to meet the requirement of optimal charging operation, the position of the holding handle is fixed through the elastic positioning pin after the adjustment is finished, the electric vehicle charging operation is realized by integrally operating the electric vehicle charging device through the holding handle to ensure that the charging plug is electrically connected with the charging connector of the electric vehicle, then the comprehensive control circuit in the holding handle is operated, the overload protection circuit, the charging and discharging controller and the electronic switch are driven by the comprehensive control circuit to operate, on one hand, the on-off state of the charging circuit is controlled by the electronic switch and the charging and discharging controller, the phenomena of serious influence on charging safety phenomena such as power connection, ignition and arc discharge which are easy to occur when the charging plug is plugged in a hot-plugging mode are avoided, on the other hand, the charging safety phenomena are seriously influenced, The overload protection circuit and the charge-discharge controller carry out comprehensive detection on parameters such as current and power during charging operation, and can be directly fused by the current-limiting fuse when overcurrent, overload and other serious threats to charging safety occur, so that the charging circuit is passively cut off, charging accidents caused by overload, overcurrent and other phenomena during charging operation are effectively avoided, in addition, the comprehensive control circuit can control the charge-discharge controller and the electronic switch to actively cut off the charging circuit under the running state, and charging accidents caused by overload, overcurrent and other phenomena during charging operation are effectively avoided.
The invention has simple structure, flexible and convenient use and good universality, can effectively meet the requirements of various operations of different crowds during the charging operation of the electric automobile on one hand, greatly improves the flexibility and the convenience of the charging operation, realizes effective insulation isolation between a charging operation part and a charging circuit on the other hand, can effectively control and manage the state in the charging process, can flexibly regulate and control the charging state according to the use requirement, and actively cuts off the charging circuit in time when the charging circuit has the phenomena of overload, short circuit and the like, thereby greatly improving the safety and the reliability of the charging operation.
It will be appreciated by persons skilled in the art that the present invention is not limited by the embodiments described above. The foregoing embodiments and description have been presented only to illustrate the principles of the invention. Various changes and modifications can be made without departing from the spirit and scope of the invention. Such variations and modifications are intended to be within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.