CN215956061U - Charging expansion cabinet - Google Patents

Abstract

The utility model discloses a charging expansion cabinet, which comprises: a cabinet body; the charging module is mounted on the cabinet body, the charging module is used for being electrically connected with a battery pack, the cabinet body is provided with a three-phase copper bar used for being connected with a power supply, and the three-phase copper bar is selectively and electrically connected with an alternating current end of the charging module; at least one battery management unit, battery management unit install in the cabinet body, battery management unit with the module electricity that charges is connected, just battery management unit be used for with battery package electricity is connected, just the cabinet body is equipped with and is used for the communication interface who is connected with the switch, the communication interface with battery management unit electricity is connected. According to the charging expansion cabinet provided by the embodiment of the utility model, the battery management unit is connected with the switch through the communication interface, so that the information of the battery pack can be transmitted to the upper switch to monitor the battery pack, and the battery management unit can adjust the charging module according to the information of the battery pack in a pertinence manner, so that the charging safety is improved.

Description

Charging expansion cabinet

Technical Field

The utility model relates to the technical field of charging cabinet manufacturing, in particular to a charging expansion cabinet.

Background

In the prior art, the function singleness of the extension cabinet that charges, the integration level is poor, can't compromise the function of charging module control and data information interaction, leads to in the battery package charging process, can't rationally, carry out automatic control to trading the empty electricity battery package in the electricity high-efficiently, especially has the defect in the aspect of the data sampling and the management of battery package, has the space of improvement.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a charging extension cabinet, which can perform data interaction with a main cabinet body through a communication interface while stably charging a battery pack, so as to adjust a charging state of the battery pack in a targeted manner.

The charging extension cabinet provided by the embodiment of the utility model comprises: a cabinet body; the charging module is mounted on the cabinet body, the charging module is used for being electrically connected with a battery pack, the cabinet body is provided with a three-phase copper bar used for being connected with a power supply, and the three-phase copper bar is selectively and electrically connected with an alternating current end of the charging module; at least one battery management unit, battery management unit install in the cabinet body, battery management unit with the module electricity that charges is connected, just battery management unit be used for with battery package electricity is connected, just the cabinet body is equipped with and is used for the communication interface who is connected with the switch, the communication interface with battery management unit electricity is connected.

According to the charging extension cabinet provided by the embodiment of the utility model, the charging function of the battery pack can be realized, the battery management unit is connected with the switch through the communication interface, so that the information of the battery pack can be transmitted to the upper switch to monitor the battery pack, and the battery management unit can adjust the charging module according to the information of the battery pack in a targeted manner, so that the charging safety is improved.

According to the charging extension cabinet provided by the embodiment of the utility model, the charging module is arranged on the front side of the cabinet body, the battery management unit and the intermediate relay are integrally arranged on the rear side of the cabinet body, and the intermediate relay and the contactor are used for controlling the alternating current input state of the charging module.

According to the charging extension cabinet provided by the embodiment of the utility model, the rear side of the cabinet body is provided with the heat dissipation mounting position in the area opposite to the charging module in the front-back direction, and the heat dissipation mounting position and the battery management unit are sequentially arranged on the rear side of the cabinet body in the horizontal direction.

The charging extension cabinet according to the embodiment of the utility model further comprises: the first module is arranged between the heat dissipation installation position and the battery management unit and comprises an Ethernet serial port plate and an I/O port plate, and the I/O port plate is electrically connected with the switch through the Ethernet serial port plate; the input module is in communication connection with the I/O port plate and comprises a main gate access port, a lightning protection access port, a water immersion access port, a door magnet-maintenance access port and a door magnet-inspection access port; the output module is in communication connection with the I/O port plate and comprises an exhaust fan access port, a main opening breaking access port and a charging fan access port.

The charging extension cabinet according to the embodiment of the utility model further comprises: the system switch, the system switch is a plurality of and is used for being connected with direct current ammeter, liquid cooling system, air conditioning system, lighting system, UPS system, fan system electricity respectively, the system switch with the module of charging along the horizontal direction spaced arrangement in the front side of the cabinet body, the system switch with ethernet serial port board communication is connected.

The charging extension cabinet according to the embodiment of the utility model further comprises: the main switch that charges, the main switch that charges be used for with the three-phase copper bar with the alternating current end selectivity ground electricity of the module that charges is connected, just the module that charges charge the main switch along upper and lower direction arrange in proper order in the front side of the cabinet body.

The charging extension cabinet according to the embodiment of the utility model further comprises: the direct current output terminal row, direct current output terminal row with the direct current end electricity of the module of charging is connected, just direct current output terminal row be used for with the battery package electricity is connected, direct current output terminal row arrange in the below of three-phase copper bar.

The charging extension cabinet according to the embodiment of the utility model further comprises: the circuit breaker, the circuit breaker connect in the three-phase copper bar with but charge between the interchange end of module and selectively break off, the circuit breaker with charge the total switch along the horizontal direction spaced apart distribution in the front side of the cabinet body.

The charging extension cabinet according to the embodiment of the utility model further comprises: the electric energy meter is electrically connected with the battery pack, the lightning protection assembly and the electric energy meter are integrally arranged on the front side of the cabinet body and are spaced from the charging main switch along the horizontal direction, and the lightning protection assembly and the electric energy meter are positioned above the circuit breaker.

According to the charging extension cabinet provided by the embodiment of the utility model, the circuit breakers, the charging modules, the battery management units and the battery packs are all in one-to-one correspondence.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a communication topology diagram of a charging extension cabinet according to an embodiment of the present invention;

FIG. 2 is a charging distribution topology of a charging expansion cabinet according to an embodiment of the utility model;

fig. 3 is a schematic structural diagram (front view) of a charging expansion cabinet according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram (rear view) of a charging extension cabinet according to an embodiment of the present invention.

Reference numerals:

the charging-up extension case 100 is provided with,

a cabinet body 1, a charging module 2, a battery management unit 3, a switch 4,

an intermediate relay 5, a heat dissipation installation position 6, an electric energy meter 7,

an input module 8, an output module 9, a system switch 10, a charging main switch 11, a three-phase copper bar 12, a communication interface 13,

a direct current output terminal row 14, a circuit breaker 15, a lightning protection device 16, a lightning protection switch 17, an Ethernet serial port plate 18, an I/O port plate 19, a contactor 20, an upper switch 21,

a battery pack 101.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A charging booth 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 4.

As shown in fig. 4, the charging extension cabinet 100 according to the embodiment of the present invention includes: cabinet 1, charging module 2 and battery management unit 3.

It should be noted that, as shown in fig. 3, the cabinet body 1 is configured as a rectangular parallelepiped structure extending along a vertical direction, the charging expansion cabinet 100 is suitable for being installed at a side of the main cabinet body 1 along a left-right direction, and one side of the cabinet body 1 away from the main cabinet body 1 is suitable for being opened outwards, so that the empty-battery pack 101 can enter a charging position in the cabinet body 1 from an open side for charging, and after the battery pack 101 is charged, the cabinet body 1 can be moved out from the open side.

At least one charging module 2, charging module 2 installs in the cabinet body 1, charging module 2 is used for being connected with battery package 101 electricity, wherein, charging module 2 can be one, also can be two, three or more, and charging module 2 and battery package 101 one-to-one, as shown in fig. 2, battery package 101 is 10, and charging module 2 also can set up to 10, so that 10 charging module 2 respectively with 10 battery package 101 one-to-one, thereby control the charged state of a plurality of battery packages 101 through a plurality of charging module 2. Wherein, the cabinet body 1 is equipped with the three-phase copper bar 12 that is used for being connected with the power, as shown in fig. 3 and fig. 4, the lower part at the cabinet body 1 is installed to three-phase copper bar 12, and the both sides of three-phase copper bar 12 extend respectively to the front side and the rear side of the cabinet body 1, and three-phase copper bar 12 is connected with the alternating current end selectivity electricity of the module 2 that charges.

That is to say, carry out the electricity through three-phase copper bar 12 and be connected with the power for the power can supply power to the cabinet body 1, and after empty electric battery package 101 got into the electric potential that charges, empty electric battery package 101 was connected with charging module 2 electricity, and three-phase copper bar 12 was connected with charging module 2 electricity, and the power can be charged to empty electric battery package 101. After the charging of the battery pack 101 is completed, or when the battery pack 101 is separated from the charging potential, the battery pack 101 is electrically disconnected from the charging module 2, the charging of the battery pack 101 is stopped, and the three-phase copper bar 12 is electrically disconnected from the charging module 2, so that the short circuit condition is avoided. Wherein, be equipped with solitary module 2 that charges respectively on every charging potential to guarantee to charge respectively battery package 101 under the different states, guarantee charge efficiency and charging safety nature.

It should be noted that the charging module 2 is connected with an external ac power supply through the three-phase copper bar 12, so that external ac power can be input to the charging module 2 through the three-phase copper bar 12, wherein the charging module 2 has a dc terminal and an ac terminal, and the charging module 2 has a function of converting ac power to dc power, so that external ac power can be converted into dc power through the charging module 2, and then output to the battery pack 101 through the dc terminal of the charging module 2, thereby realizing the power supply effect on the battery pack 101.

At least one battery management unit 3, the battery management unit 3 is installed in the cabinet body 1, and the battery management unit 3 is used for being electrically connected with the battery pack 101, wherein, the battery management unit 3 can be one, also can be two, three or even more, and the battery management unit 3 is in one-to-one correspondence with the battery pack 101, as shown in fig. 1, the number of the battery packs 101 is 10, and the number of the charging modules 2 can also be set to 10, so that 10 battery management units 3 are respectively in one-to-one correspondence with 10 battery packs 101.

Here, it is understood that the battery management unit 3 is electrically connected to the battery pack 101, and the battery management unit 3 is adapted to acquire information of the rechargeable battery pack 101, such as voltage information, charging current information, and the like of the battery pack 101, so that the operating state of the battery pack 101 can be detected by the battery management unit 3 in real time, and particularly when the corresponding battery management units 3 are individually provided for a plurality of battery packs 101, the battery management unit 3 can acquire, analyze, and process information of the battery packs 101 from the batteries on a one-to-one basis. As shown in fig. 4, the cabinet 1 is provided with a communication interface 13 for connecting with the switch 4, and the communication interface 13 is electrically connected with the battery management unit 3. In this way, a communication harness can be plugged at the communication interface 13 to be in communication connection with the switch 4, so that the information data at the battery management unit 3 can be output to the switch 4 from the communication interface 13 through the communication harness, and the switch 4 is connected with the upper switch 214 through a LAN line, so that the information of the battery pack 101 is transmitted to the upper switch 214, and the monitoring of the rechargeable battery pack 101 is realized.

Meanwhile, the battery management unit 3 is electrically connected with the charging module 2, so that the battery management unit 3 is adapted to adjust the charging module 2 according to the information of the rechargeable battery pack 101, and if the temperature of the rechargeable battery pack 101 rises sharply due to excessive current, the battery pack 101 can be electrically disconnected to avoid a thermal runaway situation of the rechargeable battery pack 101. Therefore, the battery management unit 3 can also analyze and process the information data of the battery pack 101 to timely control the charging module 2 to cut off the charging process of the battery pack 101 when an abnormal charging state occurs, so as to improve the charging safety of the battery pack 101.

According to the charging expansion cabinet 100 provided by the embodiment of the utility model, the charging module 2, the communication interface 13 and the battery management unit 3 are integrally installed at the cabinet body 1, so that the charging expansion cabinet 100 has multiple functions, the safety of the charging expansion cabinet 100 is improved, and the space utilization rate of a charging station is improved.

In some embodiments, as shown in fig. 3, the charging module 2 is disposed at the front side of the cabinet 1, the battery management unit 3 is disposed at the rear side of the cabinet 1 integrally with the intermediate relay 5, and the intermediate relay 5 and the contactor 20 are used for controlling the ac input state of the charging module 2.

Wherein, as shown in fig. 3, the charging modules 2 are provided in plurality, the plurality of charging modules 2 are sequentially arranged at the left upper part of the front side of the cabinet body 1 from top to bottom, the contactors 20 are provided in plurality to correspond to different charging potentials, respectively, the contactors 20 are provided at the rear side of the cabinet body 1 and divided into two rows in the horizontal direction, arranged at the rear side of the cabinet body 1 at intervals in the vertical direction, as shown in fig. 4, the intermediate relay 5 and the plurality of battery management units 3 are integrally arranged at the rear side of the cabinet body 1, the battery management units 3 include a plurality of PMU control boards which are sequentially distributed along the vertical direction, the plurality of PMU control boards, the plurality of contactors 20 and the plurality of charging modules 2 are in one-to-one correspondence, and through the cooperation of the intermediate relay 5, the PMU control boards and the corresponding contactors 20, the ac input state of the corresponding charging module 2 may be adjusted to reduce power consumption of the charging module 2 during non-operating time.

It should be noted that, as shown in fig. 1, a CAN communication connection is used between the PMU control board and the battery pack 101, so that information of the battery pack 101 CAN be transmitted to the PMU control board and transmitted to the switch 4 through a LAN (local area network).

In some embodiments, the rear side of the cabinet 1 is provided with a heat dissipation mounting site 6 in a region opposite to the charging module 2 in the front-rear direction, and the heat dissipation mounting site 6 and the battery management unit 3 are sequentially arranged on the rear side of the cabinet 1 in the horizontal direction.

As shown in fig. 4, the number of the heat dissipation mounting positions 6 is set to be the same as the number of the charging modules 2, the heat dissipation mounting positions 6 are sequentially distributed along the vertical direction to be arranged right behind the corresponding charging modules 2, the heat dissipation mounting positions 6 are suitable for mounting heat dissipation fans, and the heat dissipation fans rotate when the corresponding charging modules 2 charge the battery pack 101, so that the temperature of the charging battery pack 101 is effectively reduced through targeted heat dissipation.

It should be noted that, be equipped with the air conditioner in trading the power station, the air conditioner is opened by cabinet 1 control and is stopped to guarantee that the temperature in the cabinet body 1 is in a invariable temperature range, in order to avoid the cabinet body 1 overheated to lead to battery package 101 thermal runaway, the internal wind channel that is equipped with of cabinet simultaneously, through with radiator fan combined action, when all modules were in full power operation, the temperature of the cabinet body 1 remained throughout in suitable interval.

In some embodiments, as shown in fig. 1, the charging extension cabinet 100 of the embodiment of the present invention further includes: a first module, an input module 8 and an output module 9.

First module arranges between heat dissipation installation position 6 and battery management unit 3, first module includes ethernet serial ports board 18, IO mouth board 19 is connected through ethernet serial ports board 18 and switch 4 electricity, input module 8 is connected with IO mouth board 19 communication, input module 8 includes the main floodgate and inserts the mouth, the lightning protection is inserted the mouth, the water logging is inserted the mouth, door magnetism-maintenance is inserted the mouth and the door magnetism-is patrolled and examined and is inserted the mouth, it is connected with IO mouth board 19 communication to go out the module, output module 9 includes exhaust fan and inserts the mouth, the main division divides the disjunction and inserts the mouth, the fan that charges inserts the mouth.

That is to say, as shown in fig. 1, the input module 8 and the output module 9 are both in communication connection with the I/O port board 19, signals output by the input module 8 and the output module 9 are transmitted to the I/O port board 19 and then transmitted to the ethernet serial port board 18 through 485 communication, and the I/O port board 19 and the ethernet serial port board 18 cooperate to convert devices in non-ethernet communication into unified network transmission data, so as to implement communication connection between the input module 8 and the switch 4 and between the output module 9 and the switch 4.

It should be noted that the ethernet serial port board 18 and the plural PMU control boards are both in communication connection with the switch 4, and the communication mode adopts LAN, and the switch 4 is also in communication connection with the upper switch 214 through LAN, so that the communication connection between the upper switch 214 and the battery pack 101, the output module 9 and the input module 8 is realized, and the data of the cabinet 1 can be transmitted to the upper switch 214.

In some embodiments, as shown in fig. 1 and 3, the charging extension cabinet 100 of the embodiment of the present invention further includes: the system switch 10, the system switch 10 is a plurality of and is used for being connected with direct current ammeter, liquid cooling system, air conditioning system, lighting system, UPS system, fan system electricity respectively, and system switch 10 and the module 2 that charges are arranged in the front side of the cabinet body 1 along horizontal direction interval, and system switch 10 is connected with ethernet serial port board 18 communication.

That is, as shown in fig. 3, the system switches 10 are arranged in multiple groups, a single group of system switches has multiple system switches 10 arranged in sequence in the transverse direction, multiple groups of system switches 10 are arranged in sequence in the vertical direction at intervals, multiple system switches 10 are arranged on the front side of the cabinet 1 and correspond to the dc electric meter, the liquid cooling system, the air conditioning system, the lighting system, the UPS system, and the fan system of the cabinet 1 respectively, an operator can turn on or off the corresponding functions of the cabinet 1 by manually operating the switches, wherein the system switches 10 are arranged on the right side of the charging module 2, so that the operator can observe and operate conveniently. Meanwhile, as shown in fig. 1, the system switch 10 is in communication connection with the ethernet serial port board 18, so that the communication connection between the system switch 10 and the upper switch 214 is realized, the upper switch 214 can monitor the switch conditions of different functions on the cabinet 1, and the upper switch 214 can control the system switch 10, so as to realize the automatic switching of different functions of the cabinet 1.

In some embodiments, as shown in fig. 3, the charging extension cabinet 100 of the embodiment of the present invention further includes: the main switch 11 charges, the main switch 11 charges is used for selectively connecting the alternating current end ground of the three-phase copper bar 12 and the charging module 2, and the charging module 2 and the main switch 11 charge and are sequentially arranged on the front side of the cabinet body 1 along the up-down direction.

It can be understood that the charging main switch 11 is installed at the main power supply inlet wire of the whole circuit of the cabinet body 1, one end of the charging main switch 11 is electrically connected with the three-phase copper bar 12, the other end of the charging main switch 11 is electrically connected with the charging module 2, and the charging main switch 11 is suitable for selective on-off to connect or disconnect the three-phase copper bar 12 and the charging module 2, so as to control the on-off of the whole circuit of the cabinet body 1.

As shown in fig. 3, at the front side of the cabinet body 1, 10 charging modules 2, a charging main switch 11 and a three-phase copper bar 12 are sequentially arranged along the up-down direction, so that the arrangement relationship of the positions is adopted, the charging modules 2 and the three-phase copper bar 12 are switched on and off when the charging main switch 11 acts, and the rationality of the structural design is improved.

In some embodiments, as shown in fig. 3, the charging extension cabinet 100 of the embodiment of the present invention further includes: the direct current output terminal row 14 is electrically connected with the direct current end of the charging module 2, the direct current output terminal row 14 is used for being electrically connected with the battery pack 101, and the direct current output terminal row 14 is arranged below the three-phase copper bar 12.

That is to say, after the module 2 that charges is connected with three-phase copper bar 12 electricity, the alternating current of three-phase copper bar 12 flows into the module 2 that charges, the module 2 that charges converts the alternating current into the direct current, and input the direct current to direct current output terminal row 14, be connected with battery package 101 electricity through direct current output terminal row 14, so that the direct current can follow in direct current output terminal row 14 input battery package 101, make the module 2 that charges can charge battery package 101, do benefit to the direct current that realizes between the module 2 that charges and the battery package 101 and fill soon, improve the charge efficiency to battery package 101.

In some embodiments, as shown in fig. 3, the charging extension cabinet 100 of the embodiment of the present invention further includes: the circuit breaker 15, circuit breaker 15 are connected between the alternating current end of three-phase copper bar 12 and the module 2 that charges and optionally break off, and circuit breaker 15 and the main switch 11 that charges distribute in the front side of the cabinet body 1 along the horizontal direction spaced apart.

Wherein, circuit breaker 15 includes: exchange total input circuit breaker 15 and branch circuit breaker 15, exchange total input circuit breaker 15 and can get and be shunt opening trip ring, exchange total input circuit breaker 15 and install at total power supply inlet wire, when whole circuit current is too big, exchange total input circuit breaker 15 disconnect-circuit connection, thereby protect whole circuit, branch circuit breaker 15 is installed in each branch road department, in order when branch circuit current is too big, realize short-circuit protection, and guarantee other branch roads and can normally work, through setting up a plurality of circuit breakers 15, in order to realize short circuit overload protection, functions such as ground protection, whole circuit's security has been guaranteed.

It should be noted that the main power supply incoming line is also provided with an emergency stop button, an operator can press the emergency stop button to realize the power-off of the whole circuit, and meanwhile, each shunt electric device is also provided with a leakage protector, a fuse and the like to further protect the safety of the circuit.

In some embodiments, as shown in fig. 3, the charging extension cabinet 100 of the embodiment of the present invention further includes: lightning protection subassembly and electric energy meter 7, electric energy meter 7 are used for being connected with battery package 101 electricity, and lightning protection subassembly and electric energy meter 7 are integrated to be set up in the front side of the cabinet body 1 and to be spaced apart along the horizontal direction with the master switch 11 that charges, and lightning protection subassembly and electric energy meter 7 are located the top of circuit breaker 15.

It should be noted that, the main cabinet body 1 is provided with the total electric energy meter 7, and the total electric energy meter 7 is used for monitoring the electric energy use condition of the whole power conversion station, and meanwhile, as shown in fig. 2, the single charging expansion cabinet 100 is also provided with the independent electric energy meter 7 to monitor the electric energy use condition of the single charging expansion cabinet 100, and by arranging the electric energy meter 7 at the front side of the cabinet body 2, an operator can directly observe the electricity use condition of the charging expansion cabinet 100.

Wherein, as shown in fig. 2, the circuit of the cabinet body 1 is also connected with a lightning protection component, and the lightning protection component comprises: lightning protection device 16 and lightning protection switch 17, operating personnel can open lightning protection device 16 through lightning protection switch 17 to prevent that expansion cabinet 100 that charges from being damaged by the thunderbolt, the front side of the cabinet body 1 still is equipped with the power-on pilot lamp simultaneously, makes operating personnel can confirm the condition of opening of lightning protection device 16. Meanwhile, an operator can realize manual protection through an emergency stop button, the grounding and zero row of the cabinet body 1 are separately arranged, the TN-S system is met, the whole cabinet body 1 is in equipotential connection, and each grounding point is guaranteed to be reliably grounded.

In some embodiments, the circuit breaker 15, the charging module 2, the battery management unit 3, and the battery pack 101 are each a plurality in one-to-one correspondence. It can be understood that, through the corresponding module 2 that charges of independent battery management unit 3 control, realized the pertinence of battery package 101 and charged, effectively improved the charge efficiency and the security of battery package 101, simultaneously through setting up solitary circuit breaker 15, when the trend of thermal runaway appears in single battery package 101, can pertinence ground disconnection electricity connect, avoid influencing the normal charge of other battery packages 101, improved the practicality of the expansion cabinet 100 that charges greatly.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A charging extension case (100), comprising:

a cabinet body (1);

the charging device comprises at least one charging module (2), wherein the charging module (2) is installed on the cabinet body (1), the charging module (2) is used for being electrically connected with a battery pack (101), the cabinet body (1) is provided with a three-phase copper bar (12) used for being connected with a power supply, and the three-phase copper bar (12) is selectively and electrically connected with an alternating current end of the charging module (2);

at least one battery management unit (3), battery management unit (3) install in the cabinet body (1), battery management unit (3) with charging module (2) electricity is connected, just battery management unit (3) be used for with battery package (101) electricity is connected, just the cabinet body (1) is equipped with communication interface (13) that are used for being connected with switch (4), communication interface (13) with battery management unit (3) electricity is connected.

2. The charging extension cabinet (100) according to claim 1, wherein the charging module (2) is arranged at the front side of the cabinet body (1), the battery management unit (3) and the intermediate relay (5) are integrally arranged at the rear side of the cabinet body (1), and the intermediate relay (5) and the contactor (20) are used for controlling the alternating current input state of the charging module (2).

3. The charging extension cabinet (100) according to claim 2, wherein the rear side of the cabinet body (1) is provided with a heat dissipation installation position (6) in an area opposite to the charging module (2) along the front-rear direction, and the heat dissipation installation position (6) and the battery management unit (3) are sequentially arranged at the rear side of the cabinet body (1) along the horizontal direction.

4. The charging extension cabinet (100) of claim 3, further comprising:

a first module arranged between the heat sink mounting location (6) and the battery management unit (3), the first module comprising an Ethernet serial port board (18), an I/O port board (19), the I/O port board (19) being electrically connected to the switch (4) through the Ethernet serial port board (18);

the input module (8) is in communication connection with the I/O port plate (19), and the input module (8) comprises a main gate access port, a lightning protection access port, a water immersion access port, a door magnet-maintenance access port and a door magnet-inspection access port;

output module (9), output module (9) with IO mouth board (19) communication connection, output module (9) include that exhaust fan inserts the mouth, the main disconnected mouth that inserts of opening, the fan that charges inserts the mouth.

5. The charging extension cabinet (100) according to claim 4, further comprising: system switch (10), system switch (10) are a plurality ofly and are used for respectively being connected with direct current ammeter, liquid cooling system, air conditioning system, lighting system, UPS system, fan system electricity, system switch (10) with module (2) of charging along the horizontal direction spaced arrangement in the front side of the cabinet body (1), system switch (10) with ethernet cluster board (18) communication connection.

6. The charging extension cabinet (100) of claim 2, further comprising: the general switch (11) charges, charge general switch (11) be used for with three-phase copper bar (12) with the alternating current end selectivity ground electricity of the module of charging (2) is connected, just the module of charging (2) the general switch (11) of charging along upper and lower direction arrange in proper order the front side of the cabinet body (1).

7. The charging extension cabinet (100) of claim 6, further comprising: the direct current output terminal row (14), direct current output terminal row (14) with the direct current end electricity of charging module (2) is connected, just direct current output terminal row (14) be used for with battery package (101) electricity is connected, direct current output terminal row (14) arrange in the below of three-phase copper bar (12).

8. The charging extension cabinet (100) of claim 6, further comprising: circuit breaker (15), circuit breaker (15) connect in three-phase copper bar (12) with between the exchange end of the module of charging (2) and selectively break off, circuit breaker (15) with charge master switch (11) along the horizontal direction spaced apart distribution in the front side of the cabinet body (1).

9. The charging extension cabinet (100) of claim 8, further comprising: lightning protection subassembly and electric energy meter (7), electric energy meter (7) be used for with battery package (101) electricity is connected, the lightning protection subassembly with electric energy meter (7) integrated set up in the front side of the cabinet body (1) and with charge master switch (11) along the horizontal direction spaced apart, the lightning protection subassembly with electric energy meter (7) are located the top of circuit breaker (15).

10. The charging extension cabinet (100) according to claim 8, wherein the circuit breaker (15), the charging module (2), the battery management unit (3) and the battery pack (101) are each in a one-to-one correspondence.

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