A new type of full-power full-dynamic allocation matrix, integrated module, and charging station

Abstract

The present invention provides a novel full-power full-dynamic distribution matrix, an integrated module based on the full-power full-dynamic distribution matrix, and a charging station based on the integrated module. The method is to form an M×N matrix with M rectifier modules and N charging terminals. Each rectifier module corresponds to one row in M, and each charging terminal corresponds to one column in N columns. A switching circuit unit IK is connected to a crossing point (taking coordinates I and K as an example) of the M×N matrix. The collector of the IGBT 6 in the switching circuit unit IK is connected to the busbar CK. The negative pole PI- of the rectifier module PI is connected to the emitter of the IGBT 6 in the switching circuit unit IK through a current sensor 7. The current output signal of the current sensor 7 is connected to the I / O port 4I of the CPLD K. The base of the IGBT 6 in the switching circuit unit IK is connected to the I / O port 3I of the CPLD K through a drive circuit 5.

Description

Technical Field

[0001] The present invention relates to a dynamic allocation device for charging station modules, in particular to a novel full-power full-dynamic allocation matrix, an integrated module, and a charging station. Background Art

[0002] In the prior art, in a Chinese patent application with the application number 201510124712.9 and the title "Matrix Flexible Charging Stack and Charging Method for Dynamically Allocating Power", a charging method for the dynamic power of a matrix flexible charging stack is proposed, and its design includes: (1) The charging modules are divided into two parts, one part does not participate in power dynamic allocation and the other part participates in dynamic allocation, and the allocation is only limited to the module part participating in dynamic allocation; (2) The dynamic allocation array is composed of switches, and the switches include a plurality of high-voltage DC contactors.

[0003] In another Chinese patent application with the application number 201611204841.X and the title "Power Supply Module Capable of Freely Allocating Power and Allocation Method", it is proposed that: (1) Each power supply module is provided with a power allocation unit and is connected to at least two power output lines through the power allocation unit; (2) The switching unit adopts a multi-way relay, the moving contact end of the multi-way relay is connected to the positive pole of the power supply, the static contact end of the multi-way relay is connected to the power output line, and the control end of the multi-way relay.

[0004] However, the patent designs of the above prior art have not achieved the full-power full-dynamic allocation function of the rectifier module; no relevant methods and devices for the IGBT full-power full-dynamic allocation of electric vehicles have been found in the existing literature. Summary of the Invention

[0005] The object of the present invention is to provide a novel full-power full-dynamic allocation matrix, an integrated module based on the full-power full-dynamic allocation matrix, and a charging station based on the integrated module.

[0006] According to an embodiment of the first aspect of the present invention:

[0007] A full-power full-dynamic allocation matrix includes M rectifier modules and N charging terminals to form an M×N matrix. Each rectifier module corresponds to one row in M, and each charging terminal corresponds to one column in N columns;

[0008] A switching circuit unit IK is connected to a crossing point (taking coordinates I and K as an example) of the M×N matrix. The collector of the IGBT in the switching circuit unit IK is connected to the busbar CK, the negative pole PI- of the rectifier module PI is connected to the emitter of the IGBT in the switching circuit unit IK through a current sensor, and the base of the IGBT in the switching circuit unit IK is connected to the first I / O port of the CPLDK through a drive circuit; the current output signal of the current sensor is connected to the second I / O port of the CPLDK;

[0009] The MCU sends an instruction to turn on the IGBT to the CPLDK. The CPLDK outputs a high level through its first I / O port to the base of the IGBT in the switching circuit unit IK. The IGBT in the switching circuit unit IK is in the on state. The negative pole PI- of the rectifier module PI is connected to the busbar CK, and through the diode and the negative terminal relay to the negative pole of the wiring terminal of the charging terminal;

[0010] The positive pole of the wiring terminal of the charging terminal is connected to the positive pole P+ of the rectifier module PI through the positive terminal relay;

[0011] The MCU sends a turn-off instruction to the CPLDK. The CPLDK outputs a low level through its first I / O port. The IGBT in the switching circuit unit IK is turned off, and the negative pole PI- of the rectifier module PI is disconnected.

[0012] One of the embodiments of the present invention is that:

[0013] The rectifier modules PI in the M×N matrix are set to be able to be individually connected to any one of the busbars;

[0014] Multiple rectifier modules PI are set to be able to be simultaneously connected to any one of the busbars;

[0015] And, any one rectifier module PI cannot be simultaneously connected to two or more different busbars;

[0016] The working sequence of the rectifier module PI is: closing the negative terminal relay and the positive terminal relay, resetting the rectifier module PI, closing the IGBT in the switching circuit unit IK, and adjusting the output of the rectifier module PI according to CAN;

[0017] The disconnection process sequence is: the rectifier module PI resets and shuts off the output, disconnects the IGBT in the switching circuit unit IK, the negative terminal relay and the positive terminal relay;

[0018] When the rectifier module PI is in the on state, and the output signal of the current sensor is greater than the set value of the second I / O port of the CPLDK, the first I / O port of the CPLDK immediately outputs a low level. The IGBT in the switching circuit unit IK is turned off, the rectifier module PI is disconnected, and the CPLDK reports this signal to the MCU at the same time. After the IBGT is locked, the unlocking instruction must be issued by the MCU, otherwise the IBGT in the switching circuit unit IK corresponding to the M×N matrix intersection point is always in the locked state.

[0019] One of the embodiments of the present invention is that:

[0020] The control of the drive circuits of all the switching circuit units in the same column and the output signals of the current sensors are all controlled by the CPLD in this column;

[0021] The CPLDs of all columns are controlled by the MCU, and the MCU is controlled by the MAIN MCU of the device;

[0022] The PCB and IGBT of the switching circuit unit are fixed on the busbar of this column.

[0023] One embodiment of the present invention lies in:

[0024] In the switching circuit unit of the full-power full-dynamic distribution matrix, the IGBT is a common collector circuit or a common emitter circuit; the IGBT power device in the switching circuit unit is a MOS transistor power device; a diode is connected in series at the input end of each module.

[0025] The embodiment according to the second aspect of the present invention is:

[0026] An integrated module based on a full-power full-dynamic distribution matrix, which is composed of a power input unit, a rectifier module group, a wiring terminal of a charging terminal, an integrated module frame, and a full-power full-dynamic distribution matrix as described in the foregoing embodiment;

[0027] The rectifier module group is placed and fixed from the front of the integrated module frame;

[0028] The power input unit is fixed on one side of the integrated module frame;

[0029] The full-power full-dynamic distribution matrix is fixed on the other side of the integrated module frame;

[0030] The AC power supply is connected from the power input unit to the power input end of the rectifier module group through a first connecting wire, and the output of the rectifier module group is connected to the full-power full-dynamic distribution matrix through a second connecting wire;

[0031] The full-power full-dynamic distribution matrix is connected to the wiring terminal of the charging terminal through the busbar CK and via a negative terminal relay and a positive terminal relay.

[0032] The embodiment according to the third aspect of the present invention is:

[0033] A charging station based on an integrated module, which includes a charging station housing. The interior of the charging station housing is divided into an airtight refrigeration chamber and a heat dissipation chamber, where:

[0034] The airtight refrigeration chamber is provided with an integrated module, a condenser, an air inlet assembly, and an air outlet assembly as described in the foregoing embodiment; a first waterproof louver is installed outside the air inlet assembly, a second waterproof louver is installed outside the air outlet assembly, a radiator and a compressor assembly are arranged in the heat dissipation chamber, and third waterproof louvers are installed on both sides of the heat dissipation chamber;

[0035] In summer and rainy days, the charging station automatically starts the condenser, as well as the radiator and compressor assembly refrigeration system in the heat dissipation chamber, reduces the temperature rise of the integrated module by refrigeration, and in spring, autumn and winter, outdoor air cooling is adopted for heat dissipation;

[0036] The condenser is arranged at the top or in a wall-mounted manner.

[0037] The advantages of the present invention are as follows:

[0038] The full-power and full-dynamic distribution matrix proposed by the present invention can effectively improve the utilization efficiency of all modules. The integrated module can optimize the structure of the power distribution circuit and the control circuit. The charging station based on the integrated module can greatly simplify the structure and production process of the charging station, automatically enters the refrigeration and heat dissipation mode in rainy days and summer, and can greatly improve the efficiency and reliability of the charging station. Description of the Drawings

[0039] Figure 1 is the circuit schematic diagram of the full-power and full-dynamic distribution matrix of the present invention.

[0040] Figure 2 is the structural schematic diagram of the full-power and full-dynamic distribution matrix of the present invention.

[0041] Figure 3 is the principle block diagram of the integrated module based on the full-power and full-dynamic power distribution matrix of the present invention.

[0042] Figure 4 is the structural schematic diagram of the integrated module based on the full-power and full-dynamic power distribution integration of the present invention.

[0043] Figure 5 is the structural schematic diagram of the charging station based on the integrated module of the present invention.

[0044] The meanings of the various reference numerals used in the drawings are as follows:

[0045] 1 is the connection terminal of the switching single-channel unit IK and the rectifier module PI-, 2 is the connection terminal of the switching single-channel unit and the busbar CK, 3 is the control terminal of the IGBT6 of the switching single-channel unit, 4 is the current output terminal of the switching single-channel unit, 5 is the IGBT drive circuit of the switching single-channel unit, 6 is the IGBT of the switching single-channel unit, 7 is the current sensor of the switching single-channel unit, 8 is the diode, 9 is the negative terminal relay, 10 is the positive terminal relay, 11 is the output terminal of the charging terminal, 12 is the PCB of the switching circuit unit;

[0046] 21 is the power input unit, 22 is the first connection line between the power input unit and the rectifier module group 23, 23 is the rectifier module group, 24 is the second line connection between the output of the rectifier module group 23 and the full-power full-dynamic distribution matrix, 25 is the full-power full-dynamic distribution matrix, 26 is the integrated module rack;

[0047] 30 is the charging station housing, 31 is the airtight refrigeration chamber, 32 is the heat dissipation chamber, 33 is the air intake assembly, 34 is the first waterproof shutter of the air intake assembly 33, 35 is the air outlet assembly, 36 is the second waterproof shutter of the air outlet assembly 35, 37 is the condenser, 38 is the compressor and radiator assembly, 39 is the third waterproof shutter of the heat dissipation chamber 32, 40 is the integrated module. Detailed implementation mode

[0048] The drawings disclose the principles of the present invention and its implementation structure non-restrictively. The following will further explain with embodiments.

[0049] Combined with the attached Figures 1-2 The full-power full-dynamic distribution matrix of the shown embodiment includes M rectifier modules and N charging terminals to form an M×N matrix. Each rectifier module corresponds to one row in M, and each charging terminal corresponds to one column in N columns.

[0050] Combined with the attached Figure 1 、 2 As shown, a switching circuit unit IK is connected to a cross point of the M×N matrix. The collector of IGBT6 in the switching circuit unit IK is connected to the busbar CK. The negative pole PI- of the rectifier module PI is connected to the emitter of IGBT 6 in the switching circuit unit IK through the current sensor 7. The base of IGBT 6 in the switching circuit unit IK is connected to the first I / O port 3I of the CPLDK through the drive circuit 5; the current output signal of the current sensor 7 is connected to the second I / O port 4I of the CPLDK.

[0051] The MCU sends an instruction to turn on IGBT 6 to the CPLDK. The CPLDK outputs a high level to the base of IGBT 6 in the switching circuit unit IK through its first I / O port 3I. IGBT 6 in the switching circuit unit IK is in the on state. The negative pole PI- of the rectifier module PI is connected to the busbar CK, and then through the diode 8 and the negative relay 9 to the negative pole of the wiring terminal 11 of the charging terminal.

[0052] The positive pole of the wiring terminal 11 of the charging terminal is connected to the positive pole P+ of the rectifier module PI through the positive relay 10.

[0053] The MCU sends a turn-off instruction to the CPLDK. The CPLDK outputs a low level through its first I / O port 3I, and IGBT6 in the switching circuit unit IK is turned off, and the negative pole PI- of the rectifier module PI is disconnected.

[0054] Among them, the rectification module PI in the M×N matrix is set to be able to be individually connected to any one of the busbars, and multiple rectification modules PI are set to be able to be simultaneously connected to any one of the busbars. Any one rectification module PI cannot be simultaneously connected to two or more different busbars.

[0055] The working sequence of the rectification module PI is as follows: close the negative relay 9 and the positive relay 10, reset the rectification module PI, close the IGBT 6 in the switching circuit unit IK, and adjust the output of the rectification module PI according to CAN;

[0056] The sequence of the disconnection process is as follows: the rectification module PI resets to turn off the output, disconnect the IGBT 6 in the switching circuit unit IK, the negative relay 9 and the positive relay 10.

[0057] When the rectification module PI is in the conducting state and the output signal of the current sensor 7 is greater than the set value of the second I / O port 4I of the CPLDK, the first I / O port 3I of the CPLDK immediately outputs a low level, the IGBT 6 in the switching circuit unit IK is turned off, the rectification module PI is disconnected, and the CPLDK simultaneously reports this signal to the MCU. After the IBGT6 is locked, the unlocking instruction must be issued by the MCU, otherwise the IBGT 6 in the switching circuit unit IK corresponding to the intersection point of the M×N matrix will always be in the locked state.

[0058] Among them, the control of the drive circuits 5 of all the switching circuit units in the same column and the output signals of the current sensors 7 are all controlled by the CPLD in this column; the CPLDs of all columns are controlled by the MCU, and the MCU is controlled by the MAINMCU of the device; the PCB 12 and the IGBT 6 of the switching circuit unit are fixed on the busbar of this column.

[0059] Combined Figure 3 with the principle block diagram of the integrated module based on the full-power full-dynamic distribution matrix, the integrated module is composed of a power input unit 21, a rectification module group 23, a wiring terminal 11 of the charging terminal, an integrated module frame 26, and the full-power full-dynamic distribution matrix 25 designed in the foregoing embodiment.

[0060] The rectification module group 23 is placed and fixed from the front of the integrated module frame 26. The power input unit 21 is fixed on one side of the integrated module frame 26. The full-power full-dynamic distribution matrix 25 is fixed on the other side of the integrated module frame 26.

[0061] The AC power supply is connected to the power input terminal of the rectification module group 23 by the first connection line 22 through the power input unit 21, and the output of the rectification module group 23 is connected to the full-power full-dynamic distribution matrix 25 through the second connection line 24.

[0062] The full-power full-dynamic distribution matrix 25 is connected to the terminal 11 of the charging terminal through the busbar CK and via the negative relay 9 and the positive relay 10.

[0063] Among them, the IGBT in the switching circuit unit of the full-power full-dynamic distribution matrix is a common collector circuit or a common emitter circuit. The IGBT power device in the switching circuit unit is a MOS transistor power device; a diode is connected in series at the input end of each module.

[0064] Figure 4 Shown is an embodiment of an integrated module based on a full-power full-dynamic distribution matrix. In the switching circuit unit of the full-power full-dynamic distribution matrix, an IGBT is used as the power device, and the IGBT is a common collector circuit.

[0065] Combined with Figure 5 Shown in the design of a charging station based on an integrated module, the charging station includes a charging station housing 30, and the interior of the charging station housing 30 is divided into an airtight refrigeration chamber 31 and a heat dissipation chamber 32.

[0066] The airtight refrigeration chamber 31 is provided with the integrated module 40, a condenser 37, an air inlet assembly 33 and an air outlet assembly 35 designed in the foregoing embodiment. A first waterproof shutter 34 is installed outside the air inlet assembly 33, a second waterproof shutter 36 is installed outside the air outlet assembly 35, a radiator and a compressor assembly 38 are arranged in the heat dissipation chamber 32, and third waterproof shutters 39 are installed on both sides of the heat dissipation chamber 32.

[0067] In summer and rainy days, the charging station automatically starts the refrigeration systems of the condenser 37 and the radiator and the compressor assembly 38 in the heat dissipation chamber 32 to reduce the temperature rise of the integrated module 40 by refrigeration, and in spring, autumn and winter, outdoor air cooling is adopted for heat dissipation. The condenser 37 is in a top-mounted or wall-mounted manner.

[0068] In Figure 5 In the embodiment shown, the condenser 37 is top-mounted, and the air inlet and outlet ducts of the air inlet assembly 33 and the air outlet assembly 35 are provided with electric opening and closing devices.

[0069] The above specific embodiments are disclosed as above. The embodiments and the drawings are not used to limit the present invention. Without departing from the spirit and scope of the present invention, various changes or modifications can be made, and they are also within the protection scope of the present invention.

Claims

1. A full-power full-dynamic distribution matrix, comprising M rectification modules and N charging terminals to form an M×N matrix. Each rectification module corresponds to one row in M, and each charging terminal corresponds to one column in N. It is characterized in that: At a cross point of the M×N matrix, a switching circuit unit (IK) is connected. The collector of the IGBT (6) in the switching circuit unit (IK) is connected to the busbar (CK). The negative electrode (PI-) of the rectification module (PI) is connected to the emitter of the IGBT (6) in the switching circuit unit (IK) through a current sensor (7). The base of the IGBT (6) in the switching circuit unit (IK) is connected to the first I / O port (3I) of the CPLDK through a drive circuit (5); the current output signal of the current sensor (7) is connected to the second I / O port (4I) of the CPLDK; The MCU sends an instruction to turn on the IGBT (6) to the CPLDK. The CPLDK outputs a high level to the base of the IGBT (6) in the switching circuit unit (IK) through its first I / O port (3I). The IGBT (6) in the switching circuit unit (IK) is in the on state, and the negative electrode PI- of the rectification module PI is connected to the busbar (CK), and then through a diode (8) and a negative terminal relay (9) to the negative electrode of the wiring terminal (11) of the charging terminal; The positive electrode of the wiring terminal (11) of the charging terminal is connected to the positive electrode (P+) of the rectification module (PI) through a positive terminal relay (10); The MCU sends a turn-off instruction to the CPLDK. The CPLDK outputs a low level through its first I / O port (3I), and the IGBT (6) in the switching circuit unit (IK) is turned off, and the negative electrode (PI-) of the rectification module (PI) is disconnected.

2. The full-power full-dynamic distribution matrix according to claim 1, characterized in that: The rectification modules (PI) in the M×N matrix are arranged to be able to be individually connected to any one busbar; Multiple rectification modules (PI) are arranged to be able to be simultaneously connected to any one busbar; And, any one rectification module (PI) cannot be simultaneously connected to two or more different busbars; The working sequence of the rectification module (PI) is: close the negative terminal relay (9) and the positive terminal relay (10), reset the rectification module (PI), close the IGBT (6) in the switching circuit unit (IK), and adjust the output of the rectification module (PI) according to CAN; The sequence of the disconnection process is: the rectification module (PI) resets and turns off the output, disconnects the IGBT (6) in the switching circuit unit (IK), the negative terminal relay (9) and the positive terminal relay (10); When the rectification module (PI) is in the conducting state and the output signal of the current sensor (7) is greater than the set value of the second I / O port (4I) of the CPLDK, the first I / O port (3I) of the CPLDK immediately outputs a low level, the IGBT (6) in the switching circuit unit (IK) is turned off, the rectification module (PI) is disconnected, and the CPLDK reports to the MCU at the same time. After the IBGT (6) is locked, an unlocking instruction must be issued by the MCU, otherwise the IBGT (6) corresponding to the M×N matrix cross-point in the switching circuit unit (IK) will always be in the locked state.

3. The full-power full-dynamic distribution matrix according to claim 1, characterized in that: The control of the drive circuits (5) of all the switching circuit units in the same column and the output signal of the current sensor (7) are all controlled by the CPLD in that column; The CPLDs of all columns are controlled by the MCU, and the MCU is controlled by the MAIN MCU of the device; The PCB (12) and IGBT (6) of the switching circuit unit are fixed on the busbar of that column.

4. The full-power full-dynamic distribution matrix according to claim 1, characterized in that: The IGBT in the switching circuit unit of the full-power full-dynamic distribution matrix is a common collector circuit or a common emitter circuit; the IGBT power device in the switching circuit unit is a MOS tube power device; a diode is connected in series at the input end of each module.

5. An integrated module, characterized in that: The integrated module is composed of a power input unit (21), a rectification module group (23), a wiring terminal (11) of the charging terminal, an integrated module frame (26), and the full-power full-dynamic distribution matrix (25) according to claim 1; The rectification module group (23) is inserted and fixed from the front of the integrated module frame (26); The power input unit (21) is fixed on one side of the integrated module frame (26); The full-power full-dynamic distribution matrix (25) is fixed on the other side of the integrated module frame (26); The AC power supply is connected from the power input unit (21) to the power input end of the rectification module group (23) through the first connecting wire (22), and the output of the rectification module group (23) is connected to the full-power full-dynamic distribution matrix (25) through the second connecting wire (24); The full-power full-dynamic distribution matrix (25) is connected to the wiring terminal (11) of the charging terminal through the busbar (CK) and via the negative terminal relay (9) and the positive terminal relay (10).

6. A charging station, characterized in that: The charging station includes a charging station housing (30), and the interior of the charging station housing (30) is divided into an airtight refrigeration chamber (31) and a heat dissipation chamber (32), where: An integrated module (40), a condenser (37), an air inlet assembly (33), and an air outlet assembly (35) as described in claim 5 are provided inside the sealed refrigeration chamber (31); a first waterproof louver (34) is installed outside the air inlet assembly (33), a second waterproof louver (36) is installed outside the air outlet assembly (35), a radiator and a compressor assembly (38) are provided inside the heat dissipation chamber (32), and third waterproof louvers (39) are installed on both sides of the heat dissipation chamber (32); In summer and rainy days, the charging station automatically starts the refrigeration systems of the condenser (37) and the radiator and compressor assembly (38) inside the heat dissipation chamber (32) to reduce the temperature rise of the integrated module (40) by refrigeration, and in spring, autumn, and winter, outdoor air-cooled heat dissipation is adopted; The condenser (37) is in a top-mounted or wall-mounted manner.

7. The charging station according to claim 6, characterized in that: The corresponding air inlet and outlet ducts of the air inlet assembly (33) and the air outlet assembly (35) are provided with electric opening and closing devices.

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