CN218805251U

CN218805251U - Can support double-pile and double-gun rechargeable battery system

Info

Publication number: CN218805251U
Application number: CN202222861225.9U
Authority: CN
Inventors: 刘军; 黄斌超; 范迅; 芮露露; 焦银芳; 甘益明
Original assignee: Nanjing Chuangyuan Tiandi Power Technology Co ltd
Current assignee: Nanjing Chuangyuan Tiandi Power Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-04-07
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a double-pile double-gun rechargeable battery system, which comprises a BMS main control module, a charging module, a battery total negative terminal and a battery total positive terminal; the battery total negative end is connected with a negative main loop and two negative charging loops, and a total negative relay K1 and a current sensor S1 are connected between the battery total negative end and the negative main loop as well as between the two negative charging loops; the battery total positive end is connected with a positive main loop and two positive charging loops, a resistor R1 and a pre-charging relay K4 are connected in series between the battery total positive end and the positive main loop, a total positive relay K5 is also connected in parallel between the battery total positive end and the positive main loop, a first charging relay K6 is connected in series between the battery total positive end and the first positive charging loop, and a second charging relay K7 is connected in series between the battery total positive end and the second positive charging loop. The utility model discloses can support double-pile and double-gun rechargeable battery system, it can improve charge efficiency, reduces charge time.

Description

Can support double-pile and double-gun rechargeable battery system

The technical field is as follows:

the utility model relates to a can support double-pile and double-gun rechargeable battery system, it belongs to new forms of energy commercial car technical field.

Background art:

along with the progress of the electric automobile battery technology, the charging time of the electric automobile is greatly shortened, and the endurance mileage is obviously improved. However, the charging time is still a significant short plate compared to the fuel vehicle. Therefore, shortening the charging time is an urgent problem to be solved in the development process of the electric vehicle, and the battery charging multiplying power is higher and higher due to the progress of the battery technology; the method depends on the maturity of high-power quick charging technology and the popularization of basic charging facilities. The design trend of the charging system of the electric automobile is to realize high power and high efficiency on the basis of safety and reliability so as to ensure the driving range as much as possible during one-time charging.

The utility model has the following contents:

the utility model relates to a solve the problem that above-mentioned prior art exists and provide one kind and can support double-pile double-gun rechargeable battery system, it can improve charge efficiency, reduces charge time.

The utility model discloses the technical scheme who adopts has: a double-pile and double-gun rechargeable battery system capable of supporting comprises a BMS main control module, a charging module, a battery total negative terminal and a battery total positive terminal;

the battery master negative end is connected with a negative main loop and two negative charging loops, and a master negative relay K1 and a current sensor S1 are connected between the battery master negative end and the negative main loop as well as between the two negative charging loops;

the positive end of the battery assembly is connected with a three-in-one loop, a defrosting loop, an oil pump loop, an air conditioner loop, a positive main loop, two positive charging loops and a heating loop, and a sixth fuse is connected between the positive end of the battery assembly and the loops;

a three-in-one relay K2 and a first fuse are connected in series between the battery main positive end and the three-in-one loop, a defrosting relay K3 and a second fuse are connected in series between the battery main positive end and the defrosting loop, a defrosting relay K3 and a third fuse are connected in series between the battery main positive end and the oil pump loop, and a defrosting relay K3 and a fourth fuse are connected in series between the battery main positive end and the air conditioning loop;

a resistor R1 and a pre-charging relay K4 are connected in series between the battery main positive end and the positive main loop, and a main positive relay K5 is also connected in parallel between the battery main positive end and the positive main loop;

a first charging relay K6 is connected in series between the battery main positive end and the first positive charging loop, and a second charging relay K7 is connected in series between the battery main positive end and the second positive charging loop;

and a heating relay K8 and a fifth fuse are connected in series between the battery total positive end and the heating loop.

Further, the two negative charging loops are respectively a first negative charging loop and a second negative charging loop.

Further, the two positive charging loops are respectively a first positive charging loop and a second positive charging loop, and the first positive charging loop and the second positive charging loop are respectively controlled by a first charging relay K6 and a second charging relay K7.

Further, the model of the first charging relay K6 is NDZ3T-300/750V.

Further, the model of the second charging relay K7 is NDZ3T-300/750V.

Further, the model of the total negative relay K1 is NDZ3T-300/750V.

Further, the type of the current sensor S1 is: DHABS/124.

The utility model discloses following beneficial effect has:

(1) The BMS main control module is matched with the charging module, so that the production cost can be effectively reduced;

(2) The BMS main control module and the charging module have anti-interference capability; data transmission errors can be effectively avoided;

(3) The BMS main control module and the charging module have independent self-fault judgment and self-protection functions;

(4) The operating temperature ranges of the BMS main control module and the charging module are-40-85 ℃;

(5) The utility model discloses can all can real-time supervision to battery voltage, temperature, SOC, SOH, battery direct current internal resistance, equilibrium state, alarm state, group battery voltage, group battery electric current and more other parameters.

Description of the drawings:

fig. 1 is the utility model discloses can support double pile and double gun rechargeable battery system schematic diagram.

The specific implementation mode is as follows:

the present invention will be further described with reference to the accompanying drawings.

The utility model can support a double-pile double-gun rechargeable battery system, which comprises a BMS main control module, a charging module, a battery total negative terminal and a battery total positive terminal;

the BMS master control module is a core module and is responsible for receiving data of the battery, judging battery information faults and processing, and the charging module is responsible for communicating with the charging pile and transmitting all information to the BMS master control module.

The battery master negative terminal is connected with a negative main loop and two negative charging loops, the two negative charging loops are respectively a first negative charging loop and a second negative charging loop, a master negative relay K1 and a current sensor S1 are connected between the battery master negative terminal and the negative main loop and between the two negative charging loops, wherein the model of the master negative relay K1 is NDZ3T-300/750V, and the model of the current transformer S1 is as follows: DHABS/124.

The positive end of the battery assembly is connected with a three-in-one loop, a defrosting loop, an oil pump loop, an air conditioner loop, a positive main loop, two positive charging loops and a heating loop, the two positive charging loops are respectively a first positive charging loop and a second positive charging loop, and a sixth fuse is connected between the positive end of the battery assembly and the loops.

Three-in-one relay K2 and a first fuse are connected in series between the battery total positive end and the three-in-one loop, a defrosting relay K3 and a second fuse are connected in series between the battery total positive end and the defrosting loop, a defrosting relay K3 and a third fuse are connected in series between the battery total positive end and the oil pump loop, and a defrosting relay K3 and a fourth fuse are connected in series between the battery total positive end and the air conditioning loop.

A resistor R1 and a pre-charging relay K4 are connected in series between the battery main positive end and the positive main loop, and a main positive relay K5 is also connected in parallel between the battery main positive end and the positive main loop.

A first charging relay K6 is connected in series between the battery total positive end and the first positive charging loop, and a second charging relay K7 is connected in series between the battery total positive end and the second positive charging loop.

And a heating relay K8 and a fifth fuse are connected in series between the total positive end of the battery and the heating loop.

The utility model discloses can support double-pile and double-gun rechargeable battery system, first positive charging loop and the positive charging loop of second are controlled by first charging relay K6 and second charging relay K7 respectively, and first charging relay K6 and second charging relay K7's model is NDZ3T-300/750V.

The utility model discloses can support double-pile and double-gun rechargeable battery system, the theory of operation as follows: the BMS main control module is activated after single-pile gun insertion; firstly, closing a total negative relay K1, and judging a gun inserting signal by a BMS main control module and a charging module through CC resistance values on charging piles respectively; when the BMS main control module detects the CC resistance value, the BMS main control module is in communication interaction with the charging pile, and the first charging relay K6 is closed to charge; when the charging module detects the resistance value of the CC, the charging module and the charging pile are in communication interaction, and a second charging relay K7 is closed to perform charging; the current transformer S1 detects the current during the charging process. After the charging is finished, the BMS main control module disconnects the first charging relay K6, and the charging module disconnects the second charging relay K7; when a fault occurs in the charging process, the first charging relay K6 and the second charging relay K7 are respectively disconnected after the BMS main control module or the charging module requests the current value to be 0.

The utility model discloses can support among the double-pile and double-gun rechargeable battery system, thereby BMS host system and the module of charging correspond one respectively charge mouthful can two piles simultaneously and fill. After the user opens two electric pile that fill, the system can with fill electric pile and be connected the communication that carries out the national standard agreement with filling electric pile after judging, enter into the mode of charging, if only detect a stake can only be connected and the communication to single stake, enter into the mode of charging simultaneously when the double pile, BMS host system can send battery information always through the communication mouth, the module of charging can read battery information through the communication mouth in real time. If only start the stake of charging of the module mouth that charges, also can activate BMS host system module simultaneously. When the double guns are charged simultaneously; can charge according to the biggest multiplying power that electric core bore, after charging, the module or BMS host system that charge can send to filling electric pile and stop the corresponding relay of disconnection after charging, the utility model discloses can make the rifle that charges between the stake pair of guns or the different stake satisfy the electric automobile who possesses the pair of guns interface that charges simultaneously and charge simultaneously, improve charge efficiency, reduce the charge time.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a can support double-stake double gun rechargeable battery system which characterized in that: the system comprises a BMS main control module, a charging module, a battery total negative terminal and a battery total positive terminal;

the battery total negative end is connected with a negative main loop and two negative charging loops, and a total negative relay K1 and a current sensor S1 are connected between the battery total negative end and the negative main loop as well as between the two negative charging loops;

2. The system of claim 1, wherein: the two negative charging loops are respectively a first negative charging loop and a second negative charging loop.

3. The system of claim 2, wherein: the two positive charging loops are respectively a first positive charging loop and a second positive charging loop, and the first positive charging loop and the second positive charging loop are respectively controlled by a first charging relay K6 and a second charging relay K7.

4. The system of claim 3, wherein: the model of the first charging relay K6 is NDZ3T-300/750V.

5. The system of claim 4, wherein: the model of the second charging relay K7 is NDZ3T-300/750V.

6. The system of claim 5, wherein: the model of the total negative relay K1 is NDZ3T-300/750V.

7. The system of claim 6, wherein: the type of the current sensor S1 is as follows: DHABS/124.