600kW one-to-ten-and-a-half matrix distribution type split rectifier cabinet

Abstract

The utility model relates to the field of rectifier cabinets, in particular to a 600kW one-to-ten-half matrix distribution type split rectifier cabinet, which comprises an alternating current input unit for receiving 380V three-phase five-wire system alternating current input; the plurality of rectifiers AU1 are connected to the output end of the alternating current input unit in parallel; the input ends of the switching direct current contactors K are electrically connected to the rectifier AU1; the input end of the charging gun is electrically connected to the switching direct current contactor K, and the output end of the charging gun is used for external charging. The method has the effect of guaranteeing the charging power.

Description

TECHNICAL FIELD

[0001] The application relates to the field of rectifier cabinets, in particular to a 600kW one-to-ten half-matrix distribution type split rectifier cabinet. BACKGROUND

[0002] The split charging pile is powered by a ring distribution to realize one rectifier cabinet input to supply power to multiple charging guns, but in the case of charging in both left and right paths, the charging power in the path cannot be supplemented, and the power demand may not meet the vehicle demand. CONTENT OF THE UTILITY MODEL

[0003] In order to improve the problem that the ring distribution cannot guarantee the charging power of each charging gun, the application provides a 600kW one-to-ten half-matrix distribution type split rectifier cabinet.

[0004] The application provides a 600kW one-to-ten half-matrix distribution type split rectifier cabinet, which adopts the following technical scheme:

[0005] A 600kW one-to-ten half-matrix distribution type split rectifier cabinet comprises:

[0006] An alternating current input unit receives 380V three-phase five-wire alternating current input;

[0007] A plurality of rectifiers AU1 are connected in parallel at the output end of the alternating current input unit;

[0008] A plurality of switching direct current contactors K are connected at the input end of the rectifiers AU1;

[0009] A charging gun is connected at the input end of the switching direct current contactor K, and the output end is used for external charging.

[0010] By adopting the above technical scheme, the number of rectifiers AU1 connected to the charging gun is controlled by the switching direct current contactor K, so as to realize the guarantee of the output power of the charging gun and realize the sufficient output power of the charging gun.

[0011] Optionally, each switching direct current contactor K is connected at the output of a different rectifier AU1, and the input end of each charging gun is connected with the output end of a different switching direct current contactor K.

[0012] By adopting the above technical scheme, the on-off control of the rectifiers AU1 connected to the charging gun is realized by the switching direct current contactor K, and at the same time, different rectifiers AU1 can be connected to each charging gun, so that all the charging guns can output charging at the same time.

[0013] Optionally, the power controller IO is electrically connected to all the switching DC contactors K for on-off control.

[0014] By using the above technical scheme, the switching DC contactors K are controlled by the power controller IO.

[0015] Optionally, the charging controller ZK is used to detect the working state of the charging gun and control the power controller IO.

[0016] By using the above technical scheme, the working state of the charging gun is monitored by the charging controller ZK, and the switching DC contactors K are controlled by the power controller IO, so that the charging gun is adjusted to sufficient charging power.

[0017] Optionally, the RS485 communication line is used to realize communication between the rectifier AU1 and the charging controller ZK, communication between the charging gun and the charging controller ZK, and communication between the power controller IO and the charging controller ZK.

[0018] By using the above technical scheme, the signal communication transmission is realized through the RS485 communication line.

[0019] Optionally, the charging gun includes a No. 1 gun, a No. 2 gun, a No. 3 gun, a No. 4 gun, a No. 5 gun, a No. 6 gun, a No. 7 gun, and a No. 8 gun. The input ends of the seven switching DC contactors K are connected in parallel to the input end of the No. 1 gun. The output ends of the seven switching DC contactors K are connected in parallel to the input ends of the remaining seven charging guns, respectively. Different rectifiers AU1 are connected in parallel to the output ends of each different charging gun.

[0020] By using the above technical scheme, through the seven switching DC contactors K, the rectifier AU1 of the No. 1 gun can supply power to the No. 2-8 guns when the No. 1 gun is idle.

[0021] Optionally, the input ends of the six switching DC contactors K are connected in parallel to the input end of the No. 2 gun. The output ends of the six switching DC contactors K are connected in parallel to the input ends of the No. 3 gun, the No. 4 gun, the No. 5 gun, the No. 6 gun, the No. 7 gun, and the No. 8 gun, respectively. The input ends of the five switching DC contactors K are connected in parallel to the input end of the No. 3 gun. The output ends of the five switching DC contactors K are connected in parallel to the input ends of the No. 4 gun, the No. 5 gun, the No. 6 gun, the No. 7 gun, and the No. 8 gun, respectively.

[0022] By adopting the technical scheme, when the rectifiers AU1 of the No. 2 gun and the No. 3 gun are idle, the No. 2 gun or the No. 3 gun can supply power to other charging guns by switching the DC contactors K.

[0023] Optionally, the input ends of the four DC contactors K are connected in parallel to the input end of the No. 4 gun, and the output ends of the four DC contactors K are connected in parallel to the input ends of the No. 5 gun, the No. 6 gun, the No. 7 gun and the No. 8 gun respectively; the input ends of the three DC contactors K are connected in parallel to the input end of the No. 5 gun, and the output ends of the three DC contactors K are connected in parallel to the input ends of the No. 6 gun, the No. 7 gun and the No. 8 gun respectively.

[0024] By adopting the technical scheme, when the rectifiers AU1 of the No. 4 gun and the No. 5 gun are idle, the No. 4 gun or the No. 5 gun can supply power to other charging guns by switching the DC contactors K.

[0025] Optionally, the input ends of the two DC contactors K are connected in parallel to the input end of the No. 6 gun, and the output ends of the two DC contactors K are connected in parallel to the input ends of the No. 7 gun and the No. 8 gun respectively; the input end of the DC contactor K is connected in parallel to the input end of the No. 7 gun, and the output end of the DC contactor K is connected in parallel to the input end of the No. 8 gun.

[0026] By adopting the technical scheme, when the rectifiers AU1 of the No. 6 gun and the No. 7 gun are idle, the No. 6 gun or the No. 7 gun can supply power to other charging guns by switching the DC contactors K.

[0027] Optionally, the number of the rectifiers AU1 connected in parallel to the input end of each charging gun is at least two.

[0028] By adopting the technical scheme, the DC power supply is more stable.

[0029] In summary, the present application has at least one of the following beneficial technical effects:

[0030] 1. The output power of the charging gun is guaranteed, and the output power of the charging gun is sufficient.

[0031] 2. When the charging gun is idle, the corresponding rectifier AU1 can supply power to the remaining charging guns. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a current schematic diagram of a 600kW one-to-ten half-matrix distribution type split rectifier cabinet in the embodiment of the present application.

[0033] Figure 2 is Figure 1 is an enlarged schematic diagram of A in

[0034] Figure 3 is Figure 1 an enlarged schematic view at B in FIG. 1.

[0035] Figure 4 is Figure 1 an enlarged schematic view at C in FIG. 1.

[0036] Explanation of reference numerals: 1, AC input unit; 2, charging gun. DETAILED DESCRIPTION

[0037] The following description is made in conjunction with the accompanying drawings. Figures 1-4 The application is further described in detail.

[0038] The embodiment of the application discloses a 600kW one-to-ten half-matrix distribution type split rectifier cabinet. Referring to Figure 1 , the 600kW one-to-ten half-matrix distribution type split rectifier cabinet comprises an AC input unit 1, a rectifier AU1, a switching DC contactor K, a charging gun 2, a power controller IO, a charging controller ZK and an RS485 communication line, receives 380V three-phase five-wire AC power provided by a power grid through the AC input unit 1, then rectifies the AC power into 12V DC power through the rectifier AU1, and finally controls the output charging power of the charging gun 2.

[0039] Referring to Figure 2 , in the embodiment, the number of the AC input units 1 is two, and the two AC input units 1 simultaneously perform AC input power supply. The AC input unit 1 comprises a molded case circuit breaker QF1, an AC contactor KM1, a molded case circuit breaker QF3 and a surge protector SPD1. The input end of the molded case circuit breaker QF1 receives 380V three-phase five-wire AC power. The input end of the AC contactor KM1 is connected in series to the output end of the molded case circuit breaker QF1. The output end of the AC contactor KM1 is connected in parallel to the input end of all the rectifiers AU1. The input end of the surge protector SPD1 is connected in parallel to the input end of the molded case circuit breaker QF1. The molded case circuit breaker QF3 is connected in series between the input end of the surge protector SPD1 and the input end of the molded case circuit breaker QF1. The types of all the devices and the circuit of the two AC input units 1 are completely the same. Another AC input unit 1 comprises a molded case circuit breaker QF2, an AC contactor KM2, a molded case circuit breaker QF4 and a surge protector SPD2. The output end of the AC contactor KM2 serves as the output end of the other AC input unit 1. The output ends of the AC contactor KM1 and the AC contactor KM2 are connected in parallel and serve as the parallel input of all the rectifiers AU1. The surge protector SPD1 and the surge protector SPD2 are also connected to the zero line N.

[0040] Referring to Figure 1 and Figure 2 andFigure 3 In the embodiment, the number of rectifiers AU1 is sixteen, each rectifier AU1 is connected in parallel to the three-phase line and the protective ground PE terminal of the three-phase five-wire system as the input terminal of each rectifier AU1, and each two rectifiers AU1 form a group, the output terminals of the two rectifiers AU1 in the same group are connected in parallel and output together, and the eight groups of rectifiers AU1 are named as the first group to the eighth group.

[0041] Referring to Figure 2 With Figure 3 With Figure 4 The charging gun 2 includes a No. 1 gun, a No. 2 gun, a No. 3 gun, a No. 4 gun, a No. 5 gun, a No. 6 gun, a No. 7 gun and a No. 8 gun, and the switching DC contactors K are 28 in total, including switching DC contactor 1K, switching DC contactor 2K, switching DC contactor 3K, …, and switching DC contactor 28K. The input terminal and the output terminal of the switching DC contactor K each include a positive electrode and a negative electrode. For example, the switching DC contactor 1K includes the switching DC contactor 1K1 and the switching DC contactor 1K2. The input terminal of the switching DC contactor 1K1 is connected in parallel to the positive electrode of the output terminal of the rectifier AU1, the output terminal of the switching DC contactor 1K1 is electrically connected to the positive electrode of the input terminal of the No. 1 gun, the input terminal of the switching DC contactor 1K2 is connected in parallel to the negative electrode of the output terminal of the rectifier AU1, and the output terminal of the switching DC contactor 1K2 is electrically connected to the negative electrode of the input terminal of the No. 1 gun.

[0042] Referring to Figure 2 With Figure 3 With Figure 4The output of the first group of rectifiers AU1 is connected in parallel to the input of the No. 1 gun, the input of the on-off DC contactor 1K - the input of the on-off DC contactor 7K are all connected in parallel to the input of the No. 1 gun, the output of the on-off DC contactor 1K is connected in parallel to the input of the No. 2 gun, the output of the on-off DC contactor 2K is connected in parallel to the input of the No. 3 gun, the output of the on-off DC contactor 3K is connected in parallel to the input of the No. 4 gun, the output of the on-off DC contactor 4K is connected in parallel to the input of the No. 5 gun, the output of the on-off DC contactor 5K is connected in parallel to the input of the No. 6 gun, the output of the on-off DC contactor 6K is connected in parallel to the input of the No. 7 gun, and the output of the on-off DC contactor 7K is connected in parallel to the input of the No. 8 gun. The output of the second group of rectifiers AU1 is connected in parallel to the input of the No. 2 gun, the input of the on-off DC contactor 8K - the input of the on-off DC contactor 13K are all connected in parallel to the input of the No. 2 gun, the output of the on-off DC contactor 8K is connected in parallel to the input of the No. 3 gun, the output of the on-off DC contactor 9K is connected in parallel to the input of the No. 4 gun, the output of the on-off DC contactor 10K is connected in parallel to the input of the No. 5 gun, the output of the on-off DC contactor 11K is connected in parallel to the input of the No. 6 gun, the output of the on-off DC contactor 12K is connected in parallel to the input of the No. 7 gun, and the output of the on-off DC contactor 13K is connected in parallel to the input of the No. 8 gun.

[0043] With reference to Figure 2 With reference to Figure 3 With reference to Figure 4 The output of the third group of rectifiers AU1 is connected in parallel to the input of the No. 3 gun, the input of the on-off DC contactor 14K - the input of the on-off DC contactor 18K are all connected in parallel to the input of the No. 3 gun, the output of the on-off DC contactor 14K is connected in parallel to the input of the No. 4 gun, the output of the on-off DC contactor 15K is connected in parallel to the input of the No. 5 gun, the output of the on-off DC contactor 16K is connected in parallel to the input of the No. 6 gun, the output of the on-off DC contactor 17K is connected in parallel to the input of the No. 7 gun, and the output of the on-off DC contactor 18K is connected in parallel to the input of the No. 8 gun. The output of the fourth group of rectifiers AU1 is connected in parallel to the input of the No. 4 gun, the input of the on-off DC contactor 19K - the input of the on-off DC contactor 22K are all connected in parallel to the input of the No. 4 gun, the output of the on-off DC contactor 19K is connected in parallel to the input of the No. 5 gun, the output of the on-off DC contactor 20K is connected in parallel to the input of the No. 5 gun, the output of the on-off DC contactor 21K is connected in parallel to the input of the No. 6 gun, the output of the on-off DC contactor 22K is connected in parallel to the input of the No. 7 gun, and the output of the on-off DC contactor 23K is connected in parallel to the input of the No. 8 gun.

[0044] With reference to Figure 2 With reference to Figure 3 With reference to Figure 4The output of the fifth group of rectifiers AU1 is connected in parallel to the input of the No. 5 gun, the input of the switching DC contactor 23K and the input of the switching DC contactor 25K are both connected in parallel to the input of the No. 5 gun, the output of the switching DC contactor 23K is connected in parallel to the input of the No. 6 gun, the output of the switching DC contactor 24K is connected in parallel to the input of the No. 7 gun, and the output of the switching DC contactor 25K is connected in parallel to the input of the No. 8 gun. The output of the sixth group of rectifiers AU1 is connected in parallel to the input of the No. 6 gun, the input of the switching DC contactor 26K and the input of the switching DC contactor 27K are both connected in parallel to the input of the No. 6 gun, the output of the switching DC contactor 26K is connected in parallel to the input of the No. 7 gun, and the output of the switching DC contactor 27K is connected in parallel to the input of the No. 8 gun. The output of the seventh group of rectifiers AU1 is connected in parallel to the input of the No. 7 gun, the input of the switching DC contactor 28K is connected in parallel to the input of the No. 7 gun, the output of the switching DC contactor 28K is connected in parallel to the input of the No. 8 gun, and the output of the eighth group of rectifiers AU1 is connected in parallel to the input of the No. 8 gun.

[0045] With reference to Figure 3 The power controller IO can be electrically connected to any IO1 interface or IO2 interface or IO3 interface in the figure, and the power controller IO is electrically connected to the switching DC contactors 1K-28K to control the on-off, and the power controller IO contains at least 56 groups of contacts, which are respectively named as the first group to the fifty-sixth group. For the convenience of understanding, the switching DC contactor 1K is still taken as an example, the output of the switching DC contactor 1K1 is electrically connected to one of the first group of contacts of the power controller IO, the input of the switching DC contactor 1K1 is electrically connected to another of the first group of contacts of the power controller IO, the output of the switching DC contactor 1K2 is electrically connected to one of the second group of contacts of the power controller IO, and the input of the switching DC contactor 1K2 is electrically connected to another of the second group of contacts of the power controller IO.

[0046] With reference to Figure 3The charging controller ZK includes charging controller ZK1, charging controller ZK2, charging controller ZK3, charging controller ZK4 and charging controller ZK5. The charging controller ZK1 communicates with the rectifier AU1 through the RS485 communication line to monitor the output power of the rectifier AU1. The charging controller ZK2 communicates with the No.1 gun and the No.2 gun through the RS485 communication line to monitor the working state of the No.1 gun and the No.2 gun, such as whether the output power is sufficient to need to be increased. The charging controller ZK3 communicates with the No.3 gun and the No.4 gun through the RS485 communication line to monitor the working state of the No.3 gun and the No.4 gun, such as whether the output power is sufficient to need to be increased. The charging controller ZK4 communicates with the No.5 gun and the No.6 gun through the RS485 communication line to monitor the working state of the No.5 gun and the No.6 gun, such as whether the output power is sufficient to need to be increased. The charging controller ZK5 communicates with the No.7 gun and the No.8 gun through the RS485 communication line to monitor the working state of the No.7 gun and the No.8 gun, such as whether the output power is sufficient to need to be increased. The charging controller ZK1, the charging controller ZK2, the charging controller ZK3, the charging controller ZK4 and the charging controller ZK5 communicate with each other through the RS485 communication line. The charging controller ZK1 communicates with the IO1 interface, the IO2 interface and the IO3 interface through the RS485 communication line, that is, the charging controller ZK1 communicates with the power controller IO, so that the charging controller ZK1 controls the power controller IO. The communication data of the charging controller ZK2, the charging controller ZK3, the charging controller ZK4 and the charging controller ZK5 and the charging gun 2 include the output charging power, the current size, the voltage size and other data of the charging gun 2.

[0047] The implementation principle of the 600kW one-to-ten half-matrix distribution type split rectifier cabinet is that when one charging gun 2 starts to charge and outputs the corresponding direct current output of one group of rectifiers AU1, the remaining charging guns 2 can control the on-off of the direct current contactor K through the power controller IO, so as to realize the use of the direct current output of the remaining seven groups of rectifiers AU1.

[0048] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A 600kW one-to-ten half-matrix distributed split rectifier cabinet, characterized in that, include: AC input unit (1) receives 380V three-phase five-wire AC power input; There are multiple rectifiers AU1, all of which are connected in parallel to the output terminal of the AC input unit (1); Multiple DC contactors K are switched on, and their input terminals are electrically connected to the rectifier AU1. The charging gun (2) has its input end electrically connected to the switching DC contactor K, and its output end is used for external charging.

2. The 600kW one-to-ten half-matrix distribution split rectifier cabinet according to claim 1, characterized in that: Each of the switching DC contactors K is electrically connected to the output of a different rectifier AU1, and the input of each charging gun (2) is electrically connected to the output of a different switching DC contactor K.

3. A 600kW one-to-ten half-matrix distributed split rectifier cabinet according to claim 2, characterized in that: It also includes a power controller IO, which is electrically connected to all of the switching DC contactors K for on / off control.

4. A 600kW one-to-ten half-matrix distribution split rectifier cabinet according to claim 3, characterized in that: It also includes a charging controller ZK, which is used to detect the working status of the charging gun (2) and control the power controller IO.

5. A 600kW one-to-ten half-matrix distribution type split rectifier cabinet according to claim 4, characterized in that: It also includes an RS485 communication line. The rectifier AU1 communicates with the charging controller ZK through the RS485 communication line. The charging gun (2) communicates with the charging controller ZK through the RS485 communication line. The power controller IO communicates with the charging controller ZK through the RS485 communication line.

6. A 600kW one-to-ten half-matrix distributed split rectifier cabinet according to claim 2, characterized in that: The charging gun (2) includes gun 1, gun 2, gun 3, gun 4, gun 5, gun 6, gun 7 and gun 8. The input terminals of the seven switching DC contactors K are connected in parallel to the input terminal of gun 1. The output terminals of the seven switching DC contactors K are respectively connected in parallel to the input terminals of the other seven charging guns (2). A different rectifier AU1 is connected in parallel to the output terminal of each different charging gun (2).

7. A 600kW one-to-ten half-matrix distributed split rectifier cabinet according to claim 6, characterized in that: The input terminals of the six switching DC contactors K are connected in parallel to the input terminal of gun No. 2, and the output terminals of the six switching DC contactors K are connected in parallel to the input terminals of guns No. 3, No. 4, No. 5, No. 6, No. 7 and No. 8, respectively; the input terminals of the five switching DC contactors K are connected in parallel to the input terminal of gun No. 3, and the output terminals of the five switching DC contactors K are connected in parallel to the input terminals of guns No. 4, No. 5, No. 6, No. 7 and No. 8, respectively.

8. A 600kW one-to-ten half-matrix distributed split rectifier cabinet according to claim 6, characterized in that: The input terminals of the four switching DC contactors K are connected in parallel to the input terminal of gun No. 4, and the output terminals of the four switching DC contactors K are connected in parallel to the input terminals of guns No. 5, No. 6, No. 7 and No. 8, respectively; the input terminals of the three switching DC contactors K are connected in parallel to the input terminal of gun No. 5, and the output terminals of the three switching DC contactors K are connected in parallel to the input terminals of guns No. 6, No. 7 and No. 8, respectively.

9. A 600kW one-to-ten half-matrix distributed split rectifier cabinet according to claim 6, characterized in that: The input terminals of the two switching DC contactors K are connected in parallel to the input terminal of gun 6, and the output terminals of the two switching DC contactors K are connected in parallel to the input terminals of guns 7 and 8, respectively; the input terminal of one switching DC contactor K is connected in parallel to the input terminal of gun 7, and the output terminal of one switching DC contactor K is connected in parallel to the input terminal of gun 8.

10. A 600kW one-to-ten half-matrix distributed split rectifier cabinet according to claim 6, characterized in that: The number of rectifiers AU1 connected in parallel to the input terminal of each of the charging guns (2) is at least two.

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