CN205429808U - Electric automobile removes on -vehicle machine that charges of quick direct current of pocket non - - Google Patents

Abstract

The utility model discloses a mobile portable fast DC non-vehicle charger for an electric vehicle, which comprises a charger body; a circuit topology unit is arranged in the charger body, and the circuit topology unit includes an active APFC rectifier, a DC resonant Inverter, isolation transformer, rectifier filter, grounding detector, DC auxiliary power supply and control communication system; the front panel of the charger body is provided with a monitoring screen, a main switch and an external power supply inlet, and the main switch is connected in series The external power supply inlet, the main AC contactor and the auxiliary power input contactor's power line; the charger body is also provided with a charging power supply module group, a current transformer and an output DC contactor; the electric vehicle is portable and fast The DC non-vehicle charger adopts moving wheels installed at the bottom of the charger body, which is convenient for moving the charger, has strong practicability, and is easy to popularize and use.

Description

A mobile and portable fast DC off-board charger for electric vehicles

technical field

The utility model relates to the technical field of application of charging piles for electric vehicles, in particular to a mobile and portable fast DC off-vehicle charger for electric vehicles.

Background technique

An electric vehicle (BEV) refers to a vehicle that is powered by a vehicle-mounted power supply, drives the wheels with a motor, and meets the requirements of road traffic and safety regulations.

Since electric vehicles are powered by the on-board power supply, the amount of electricity stored in the on-board power supply directly affects the mileage of the car. In the prior art, specific charging piles are generally established in large cities, and the on-board power supply can only be used in specific locations. It is not suitable for the use of long-distance vehicles, because designing a mobile portable charger is a technical problem that needs to be solved in the prior art.

Contents of the invention

The existing technology is difficult to meet people's needs. In order to solve the above-mentioned problems, the utility model proposes a mobile and portable fast DC non-vehicle charger for electric vehicles. In the era when charging piles have not been popularized for the time being, they can travel long distances. For electric car rental companies, electric taxi companies, electric buses are extremely convenient to use and easy to use and popularize .

In order to achieve this technical purpose, the technical solution adopted by the utility model is: a mobile portable fast DC non-vehicle charger for electric vehicles, including a charger body; a circuit topology unit is arranged in the charger body, and the circuit topology The unit includes an active APFC rectifier, a DC-AC resonant inverter, an isolation transformer, a rectification filter, a ground detector, a DC auxiliary power supply, and a control communication system; the input end of the active APFC rectifier is connected to the output end of the main AC contactor Electrically connected, and the output end of the APFC rectifier is electrically connected to the input end of the DC-AC resonant inverter; the output end of the DC-AC resonant inverter is electrically connected to the input end of the isolation transformer, and the output end of the isolation transformer is connected to the rectification filter The input end of the rectifier filter is electrically connected; the two branches of the output end of the rectification filter are respectively connected to the DC positive contact of the contactor and the DC negative contact of the contactor of the vehicle power battery, and the contact between the rectification filter and the vehicle power battery An ammeter, a current-limiting fuse and a diode are connected in series on the branch electrically connected to the DC positive contact of the rectifier; the ground detector is connected in parallel on the two branch wires at the output end of the rectifier, and the ground detector passes through the wire and the ground terminal; the control The communication system is electrically connected to the DC auxiliary power supply, and the DC auxiliary power supply is electrically connected to the auxiliary power input contactor; the front panel of the charger body is provided with a monitoring screen, a main switch and an external power supply inlet, and the main switch is connected in series Connect the power line of the external power inlet, the main AC contactor and the auxiliary power input contactor; the charger body is also provided with a charging power supply module group, a current transformer and an output DC contactor.

Further, the diode is an anti-current anti-series diode.

Further, the shell of the charger body is also provided with a network access port, a power adjustment button and an emergency stop button.

Further, a handle is provided on the upper panel of the charger body, and a moving wheel is installed at the bottom of the charger body.

Further, a single charger can charge an electric vehicle at 1x speed, two chargers connected in parallel can charge electric vehicles at double speed, and three chargers connected in parallel can charge electric vehicles at 3 times speed.

Furthermore, the charging connector is detachable, and the charging machine is reserved for multi-standard charging gun interfaces, including Chinese national standard GB-T, Japanese standard CHAdeMO, European standard CCS, etc. The same machine can be replaced with different charging guns for corresponding different models. Charge.

Furthermore, the user can adjust the output power in real time during the charging process.

Further, the input alternating current can freely choose single-phase or three-phase power according to user conditions.

Furthermore, there is a network access port, which can be monitored and managed through the network.

Compared with the prior art, the utility model has the following beneficial effects: the mobile portable fast DC non-vehicle charger for electric vehicles adopts moving wheels installed at the bottom of the charger body to facilitate the movement of the combined charger, and at the same time, charging The charger combination also increases the power of the charger; the charging gun is a detachable structure, which reduces the weight and volume of the charger; three-phase or single-phase input is available, easy to use, and can be used in the current era when fast charging piles are temporarily unpopular. For long-distance driving, electric car rental companies, electric taxi companies, and electric buses are extremely convenient to use, strong in practicability, and easy to promote and use.

Description of drawings

Fig. 1 is a schematic circuit diagram of the utility model;

Fig. 2 is the overall structural representation of the utility model;

Fig. 3 is the front view of the utility model;

Fig. 4 is a side view of the utility model;

Among the reference signs: 1-active APFC rectifier, 2-DC resonant inverter, 3-isolation transformer, 4-rectification filter, 5-vehicle power battery, 6-grounding detector, 7-DC auxiliary power supply, 8-control communication system, 9-main AC contactor, 10-ammeter, 11-current limiting fuse, 12-diode, 13-auxiliary power input contactor, 14-monitoring screen, 15-main switch, 16-external power supply Entrance, 17-handle, 18-moving wheel, 19-network access port, 20-power adjustment button, 21-emergency stop button, 22-power cord, 23-charging power module group, 24-current transformer, 25- Output DC contactor, 51-contactor DC positive contact, 52-contactor DC negative contact, A-charger body.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to the accompanying drawings 1-4 of the specification. In the embodiment of the present invention, a mobile portable fast DC off-board charger for electric vehicles includes a charger body A; a circuit topology unit is arranged inside the charger body A, The circuit topology unit includes an active APFC rectifier 1, a DC resonant inverter 2, an isolation transformer 3, a rectification filter 4, a ground detector 6, a DC auxiliary power supply 7 and a control communication system 8; the active APFC rectifier The input end of 1 is electrically connected to the output end of the main AC contactor 9, and the output end of the APFC rectifier 1 is electrically connected to the input end of the DC-AC resonant inverter 2; the output end of the DC-AC resonant inverter 2 is connected to the The input end of the isolation transformer 3 is electrically connected, and the output end of the isolation transformer 3 is electrically connected to the input end of the rectification filter 4; the two branches of the output end of the rectification filter 4 are respectively connected to the contactor DC positive of the vehicle power battery 5 The contact 51 is connected to the DC negative contact 52 of the contactor, and the branch where the rectifier filter 4 is electrically connected to the DC positive contact 51 of the contactor of the vehicle-mounted power battery 5 is connected in series with an ammeter 10, a current-limiting fuse 11 and a diode 12; The ground detector 6 is connected in parallel to the two branch wires at the output end of the rectifier 4, and the ground detector 6 passes through the wire and the ground terminal; the control communication system 8 is electrically connected to the DC auxiliary power supply 7, and the DC auxiliary power supply 7 is connected to the ground terminal. The auxiliary power input contactor 13 is electrically connected; the front panel of the charger body A is provided with a monitoring screen 14, a main switch 15 and an external power inlet 16, and the main switch 15 is connected in series to the external power inlet 16, the main AC On the power line 22 of the contactor 9 and the auxiliary power input contactor 13; the charger body A is also provided with a charging power supply module group 23, a current transformer 24 and an output DC contactor 25; the diode 12 is used to prevent current reverse series diode; the shell of the charger body A is also provided with a network access port 19, a power adjustment button 20 and an emergency stop button 21; a handle 17 is arranged on the upper panel of the charger body A, and the charger body A The bottom end is provided with moving wheel 18.

Further, a single charger can charge an electric vehicle at 1x speed, two chargers connected in parallel can charge electric vehicles at double speed, and three chargers connected in parallel can charge electric vehicles at 3 times speed.

Furthermore, the charging connector is detachable, and the charging machine is reserved for multi-standard charging gun interfaces, including Chinese national standard GB-T, Japanese standard CHAdeMO, European standard CCS, etc. The same machine can be replaced with different charging guns for corresponding different models. Charge.

Furthermore, the user can adjust the output power in real time during the charging process.

Further, the input alternating current can freely choose single-phase or three-phase power according to user conditions.

Furthermore, there is a network access port, which can be monitored and managed through the network.

When the utility model mobile portable fast DC non-vehicle charger is in use, the active APFC rectifier 1 is first connected to the external single-phase or three-phase power supply through the main AC contactor 9, and the DC-AC resonant inverter 2 and Under the action of the isolation transformer 3 and the rectification action of the rectifier filter 4, the current is finally realized through the two branches of the output terminal of the rectifier 4 and the contactor DC positive contact 51 and the contactor DC negative contact 52 of the vehicle power battery 5. Charging achieves the power storage effect of the vehicle-mounted power battery 5; the charger body A can be charged in parallel, and the charger body A can adjust the output power through the power adjustment button 20 online in real time, and can press the emergency stop button 21 in case of emergency. Emergency shutdown; and can be connected to the Internet through the network port 19 for management and software updates; the working status of the charger can be easily checked through the monitoring screen 14, the main body A can be moved conveniently through the moving wheel 18, and can be easily The carrying and moving body A; by replacing the charging connector, it can meet the charging requirements of compatible models of different standards.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any minor modifications, equivalent replacements and improvements made to the above embodiments according to the technical essence of the present utility model shall be included in the Within the scope of protection of the technical solution of the utility model.

Claims (9)

1. A mobile and portable fast DC non-vehicle charger for electric vehicles, including a charger body (A); its feature is that a circuit topology unit is arranged in the charger body (A), and the circuit topology unit includes Source APFC rectifier (1), DC/AC resonant inverter (2), isolation transformer (3), rectification filter (4), grounding detector (6), DC auxiliary power supply (7) and control communication system (8) ; The input end of the active APFC rectifier (1) is electrically connected to the output end of the main AC contactor (9), and the output end of the APFC rectifier (1) is electrically connected to the input end of the DC-AC resonant inverter (2) Sexual connection; the output end of the DC-AC resonant inverter (2) is electrically connected to the input end of the isolation transformer (3), and the output end of the isolation transformer (3) is electrically connected to the input end of the rectifier filter (4); The two branches of the output end of the rectification filter (4) are respectively connected to the contactor DC positive contact (51) and the contactor DC negative contact (52) of the vehicle-mounted power battery (5), and the rectification filter (4 ) on the branch electrically connected to the contactor DC positive contact (51) of the vehicle-mounted power battery (5), an ammeter (10), a current-limiting fuse (11) and a diode (12) are connected in series; the grounding detector (6 ) are connected in parallel on the two branch wires at the output end of the rectifier (4), and the ground detector (6) is connected to the ground terminal through the wire; the control communication system (8) is electrically connected with the DC auxiliary power supply (7), and the DC auxiliary power supply The power supply (7) is electrically connected to the auxiliary power supply input contactor (13); the front panel of the charger body (A) is provided with a monitoring screen (14), a main switch (15) and an external power supply inlet (16), And the main switch (15) is connected in series with the power line (22) connecting the external power supply inlet (16), the main AC contactor (9) and the auxiliary power input contactor (13); A charging power supply module group (23), a current transformer (24) and an output DC contactor (25) are also provided. 2. A mobile portable fast DC off-board charger for electric vehicles according to claim 1, characterized in that: the diode (12) is an anti-current anti-series diode. 3. A mobile portable fast DC off-board charger for electric vehicles according to claim 1, characterized in that: the shell of the charger body (A) is also provided with a network access port (19) and a power adjustment button (20) and emergency stop button (21). 4. A mobile portable fast DC off-board charger for electric vehicles according to claim 1, characterized in that: a handle (17) is arranged on the upper panel of the charger body (A), and the charger body (A) The bottom end is equipped with moving wheels (18). 5. A mobile portable fast DC non-vehicle charger for electric vehicles according to claim 1, characterized in that: a single charger can charge an electric vehicle at a double speed, and two chargers connected in parallel can charge an electric vehicle at double speed Charging, 3 chargers connected in parallel can charge electric vehicles at 3 times speed. 6. A mobile portable fast DC non-vehicle charger for electric vehicles according to claim 1, characterized in that: the charging connector is detachable, and the charger is reserved with multi-standard charging gun interfaces, including Chinese national standard GB -T, Japanese standard CHAdeMO, European standard CCS, etc., the same machine can charge different models with different charging cables. 7. A mobile portable fast DC off-board charger for electric vehicles according to claim 1, wherein the output power can be adjusted in real time by the user during the charging process. 8. A mobile portable fast DC off-board charger for electric vehicles according to claim 1, characterized in that the input AC power can be freely selected from single-phase or three-phase power according to user conditions. 9. A mobile portable fast DC off-board charger for electric vehicles according to claim 1, characterized in that: there is a network access port, which can be monitored and managed through the network.