Integrated power distribution system and charging pile

Abstract

The utility model provides an integrated power distribution system and a charging pile, the system comprises N power distribution units, each power distribution unit is used for distributing input electric energy to a plurality of first electric energy output interfaces of the power distribution unit, and N is an integer greater than or equal to 2; the plurality of busbars are arranged outside all the power distribution units, each busbar is connected with the first electric energy output interfaces of at least two power distribution units, and each power distribution unit is connected with at least two busbars; and the electric energy output by the first electric energy output interface of the power distribution unit corresponding to each busbar is output to the to-be-charged equipment from the busbar. According to the utility model, synchronous distribution can be carried out according to the required power of the to-be-charged equipment, and different required power of different to-be-charged equipment can be satisfied at the same time; internal temperature rise of the power distribution unit is reduced, and heat dissipation is facilitated; the weight of the power distribution unit is reduced, and modular maintenance of the power distribution unit is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of charging, and in particular to an integrated power distribution system and a charging pile. Background Art

[0002] In order to cope with the different power requirements of different new energy vehicle models on the market, electric vehicle charging devices generally use a multi-input and one-output power distribution unit (PDU) for single power distribution, which can only synthesize multiple energy channels into one output and cannot simultaneously meet the different power requirements of different devices to be charged. In addition, most of them increase the current carrying capacity by increasing the cross-section of the internal bus, which makes the bus too thick. This method requires the charging device to reserve a larger wiring space, and the weight of a single PDU module increases, resulting in inconvenience in maintenance. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the utility model provides an integrated power distribution system and a charging pile, which can synchronously distribute power according to the power requirements of the equipment to be charged and meet the different power requirements of different equipment to be charged; reduce the internal temperature rise of the power distribution unit, which is beneficial to heat dissipation; reduce the weight of the power distribution unit, which is beneficial to modular maintenance of the power distribution unit.

[0004] The technical solution adopted by the utility model is as follows:

[0005] An integrated power distribution system includes: N power distribution units, each of which is used to distribute input electrical energy to multiple first electrical energy output interfaces of the power distribution unit, wherein N is an integer greater than or equal to 2; multiple buses arranged outside all power distribution units, each of which is connected to the first electrical energy output interfaces of at least two power distribution units, and each of which is connected to at least two buses, so that the electrical energy output by the first electrical energy output interface of the power distribution unit corresponding to each bus is output from the bus to a device to be charged.

[0006] In addition, the integrated power distribution system proposed in the utility model may also have the following additional technical features:

[0007] According to one embodiment of the utility model, each of the power distribution unit comprises: a main control unit, the main control unit being used to distribute the electric energy input to the power distribution unit according to the power demand of the device to be charged corresponding to the power distribution unit, and set the output electric energy of the power distribution unit; a power distribution unit, the power distribution unit distributes the input electric energy to multiple first electric energy output interfaces of the power distribution unit according to the output electric energy of the power distribution unit set by the main control unit, wherein the main control units corresponding to I power distribution units are connected to each other, and the electric energy input to these power distribution units is distributed according to the power demand of the device to be charged corresponding to these power distribution units, and the output electric energy of each of the I power distribution units is set, and I is an integer greater than or equal to 2 and less than or equal to N.

[0008] According to an embodiment of the present utility model, each of the main control units includes a PDU control board, and the PDU control board is used to control whether each first power output interface of the power distribution unit corresponding to the main control unit outputs power.

[0009] According to one embodiment of the utility model, each of the power distribution units also includes: at least two groups of power input interface units, each group of the power input interface units is used to input the electric energy of the power supply corresponding to the power input interface unit into the power distribution unit; each group of the power input interface units corresponds to a protection unit, and the protection unit is used to protect the rectification circuit between the power supply corresponding to the power input interface unit and the power distribution unit.

[0010] According to one embodiment of the utility model, each of the power distribution units also includes: a data acquisition and feedback unit, which is used to collect real-time data of the device to be charged corresponding to the power distribution unit, and transmit the real-time data of the device to be charged to the main control unit; a communication unit, which is used to realize communication between the power distribution unit and the device to be charged corresponding to the power distribution unit, and send instructions from the main control unit to the power distribution unit of the power distribution unit.

[0011] According to an embodiment of the utility model, each of the power distribution units further includes: a display unit, and the display unit is used to display the status information of the main control unit of the power distribution unit and the power distribution status of the power distribution unit.

[0012] According to one embodiment of the utility model, each of the buses includes at least one power input interface and a second power output interface, the power input interface is used to receive power output from the first power output interface of the power distribution unit, and the second power output interface is used to output the received power to the device to be charged.

[0013] In addition, to achieve the above-mentioned purpose, the utility model also proposes a charging pile.

[0014] A charging pile comprises the integrated power distribution system and charging gun as described above, each bus corresponds to a charging gun, and the electric energy received by the bus is output to a device to be charged through the charging gun.

[0015] Beneficial effects of the utility model:

[0016] The integrated power distribution system of the utility model, by providing multiple power distribution units and multiple buses, each bus is connected to the first power output interface of at least two power distribution units, and each power distribution unit is connected to at least two buses, can synchronously distribute power according to the power requirements of the devices to be charged, and meet the different power requirements of different devices to be charged; by arranging the bus outside the power distribution unit, the temperature rise inside the power distribution unit can be reduced, which is beneficial to the heat dissipation of the integrated power distribution system; at the same time, the weight of a single power distribution unit can be reduced, which is beneficial to modular maintenance of the power distribution unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an integrated power distribution system according to an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a power distribution unit according to an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of power transmission of an integrated power distribution system according to a specific embodiment of the utility model;

[0020] Figure 4 A block diagram of a power distribution unit according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of a circuit between a PDU control board and a power distribution unit according to an embodiment of the utility model.

[0022] Figure numerals: 10-power distribution unit, 11-first power output interface, 12-main control unit, 13-power distribution unit, 14-power input interface unit, 15-protection unit, 16-data acquisition feedback unit, 17-communication unit, 18-display unit, 20-bus, 21-power input interface, 22-second power output interface. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 and Figure 2 As shown, the integrated power distribution system of an embodiment of the utility model includes: N power distribution units 10 and multiple buses 20 arranged outside all power distribution units, wherein each power distribution unit 10 is used to distribute the input electric energy to multiple first electric energy output interfaces 11 of the power distribution unit 10, wherein N is an integer greater than or equal to 2; each bus 20 is connected to the first electric energy output interfaces 11 of at least two power distribution units 10, and each power distribution unit 10 is connected to at least two buses 20, so that the electric energy output by the first electric energy output interface 11 of the power distribution unit 10 corresponding to each bus 20 is output from the bus 20 to the device to be charged.

[0025] Specifically, each bus 20 is connected to the first power output interfaces 11 of at least two power distribution units 10, so that these power distribution units 10 can be connected in parallel, and each power distribution unit 10 can be connected to the bus 20 corresponding to these first power output interfaces 11 through different first power output interfaces 11.

[0026] The integrated power distribution system of this embodiment can simultaneously distribute the electric energy input by multiple power sources to multiple devices to be charged through one or more power distribution units 10, and can also simultaneously combine the electric energy output by multiple power distribution units 10 into one path and output it to one device to be charged through a bus 20. It can be synchronously distributed according to the power requirements of the devices to be charged, and at the same time meet the different power requirements of different devices to be charged; by arranging the bus 20 outside the power distribution unit 10, the internal temperature rise of the power distribution unit 10 can be reduced, which is beneficial to the heat dissipation of the integrated power distribution system; at the same time, the weight of a single power distribution unit 10 can be reduced, which is beneficial to modular maintenance of the power distribution unit 10.

[0027] like Figure 3As shown, in a specific embodiment of the utility model, an integrated power distribution system includes eight power distribution units (1#PDU, 2#PDU, ..., 8#PDU) and eight buses (1#bus, 2#bus, ..., 8#bus), each bus is connected to a charging gun, and the power supply for inputting electric energy to the integrated power distribution system includes 14 40kW power modules and 2 20kW power modules, wherein each power distribution unit is connected to 1#bus, 2#bus, ..., 6#bus to output electric energy to 1#liquid-cooled charging gun, 2#liquid-cooled charging gun, ..., 6#liquid-cooled charging gun, 1#PDU and 2#PDU are connected to 7#bus. It is connected to the 7# ordinary charging gun to output power. The 7#PDU and 8#PDU are connected to the 8# bus to output power to the 7# ordinary charging gun. Except for each power distribution unit of 2#PDU and 8#PDU, which is connected to two 40kW power modules, 2#PDU and 8#PDU are connected to a 40kW power module respectively, and 2#PDU and 8#PDU are connected to a 20kW power module respectively, so that the integrated power distribution system supports a maximum single-gun output power of 600kW and a minimum full-matrix single-gun flexible distribution of 20kW. Different charging gun ends can be selected for models with different power requirements, thereby meeting the different power requirements of most new energy models.

[0028] like Figure 4 As shown, in one embodiment of the utility model, each power distribution unit 10 may include: a main control unit 12 and a power distribution unit 13, wherein the main control unit 12 is used to distribute the electric energy input to the power distribution unit 10 according to the required power of the device to be charged corresponding to the power distribution unit 10, and set the output electric energy of the power distribution unit 10; the power distribution unit 13 distributes the input electric energy to multiple first electric energy output interfaces 11 of the power distribution unit 10 according to the output electric energy of the power distribution unit 10 set by the main control unit 12, wherein the main control units 12 corresponding to I power distribution units 10 are connected to each other, and the electric energy input to these power distribution units 10 is distributed according to the required power of the device to be charged corresponding to these power distribution units 10, and the output electric energy of each power distribution unit 10 in I power distribution units 10 is set, and I is an integer greater than or equal to 2 and less than or equal to N.

[0029] like Figure 2 As shown, in one embodiment of the present invention, the power distribution unit 13 may include multiple switches, and whether the power supply corresponding to the power distribution unit 10 is connected to the first power output interface 11 of the power distribution unit 10 is controlled by controlling the opening and closing of each switch.

[0030] like Figure 4As shown, in one embodiment of the utility model, each power distribution unit 10 may also include: at least two groups of power input interface units 14, each group of power input interface units 14 is used to input the electrical energy of the power source corresponding to the power input interface unit 14 into the power distribution unit 10; each group of power input interface units 14 corresponds to a protection unit 15, and the protection unit 15 is used to protect the rectification circuit between the power source corresponding to the power input interface unit 14 and the power distribution unit 10.

[0031] In one embodiment of the utility model, the protection unit 15 can perform efficiency monitoring and life balance detection on the power supply to prevent abnormal conditions such as overload, short circuit, overheating, etc. from occurring in the rectification circuit between the power supply and the power distribution unit 10, thereby ensuring the safe operation of the system.

[0032] Specifically, the protection unit 15 can be connected to the high-voltage components of the power distribution unit 10 through the busbar and the wiring harness, so as to realize the functions of charging and discharging control of the integrated power distribution system, power-on control of high-voltage components, circuit overload and short-circuit protection, high-voltage sampling, low-voltage control, etc., and protect and monitor the operation of the system.

[0033] like Figure 4 As shown, in one embodiment of the utility model, each power distribution unit 10 may also include: a data acquisition feedback unit 16 and a communication unit 17, wherein the data acquisition feedback unit 16 is used to collect real-time data of the device to be charged corresponding to the power distribution unit 10, and transmit the real-time data of the device to be charged to the main control unit 12; the communication unit 17 is used to realize the communication between the power distribution unit 10 and the device to be charged corresponding to the power distribution unit 10, and send the instructions of the main control unit 12 to the power distribution unit 13 of the power distribution unit 10.

[0034] It should be noted that the real-time data of the device to be charged collected by the data collection and feedback unit 16 may be the current, voltage, power, etc. of the device to be charged, which is not limited in this embodiment. The main control unit 12 may determine the required power of the device to be charged based on the data collected by the data collection and feedback unit 16, and distribute the output power of the power distribution unit 10.

[0035] like Figure 4 As shown, in one embodiment of the utility model, each power distribution unit 10 also includes: a display unit 18, which is used to display the status information of the main control unit 12 of the power distribution unit 10 and the power distribution status of the power distribution unit 10, so as to facilitate the staff to monitor the status information of the main control unit 12 and the power distribution status of the power distribution unit 10 in real time.

[0036] In one embodiment of the present invention, each main control unit 12 includes a PDU control board, and the PDU control board is used to control whether each first power output interface 11 of the power distribution unit 10 corresponding to the main control unit 12 outputs power.

[0037] like Figure 5 As shown, in a specific embodiment of the utility model, the onboard relay of the PDU control board controls the opening and closing of the circuit of the communication unit between the PDU control board and the power distribution unit according to the control of the main control unit, and the DC relay of the power distribution unit distributes the electric energy received by the power access interface unit to each first power output interface according to the instruction of the main control unit output by the PDU control board, and the feedback loop of the data acquisition feedback unit transmits the real-time data of the device to be charged connected to the first power output interface to the PDU control board, wherein a control loop is formed between the onboard relay of the PDU control board and the circuit of the communication unit, and a control loop is formed between the DC relay of the power distribution unit and the switch between the power access interface unit and the first power output interface.

[0038] like Figure 1 As shown, in one embodiment of the utility model, each bus 20 includes at least one power input interface 21 and a second power output interface 22, the power input interface 21 is used to receive the power output from the first power output interface 11 of the power distribution unit 10, and the second power output interface 22 is used to output the received power to the device to be charged.

[0039] According to the integrated power distribution system of the embodiment of the utility model, by setting up multiple power distribution units and multiple buses, each bus is connected to the first power output interface of at least two power distribution units, and each power distribution unit is connected to at least two buses, so that the power demand of the device to be charged can be synchronously distributed and the different power demand of different devices to be charged can be met at the same time; by setting the bus outside the power distribution unit, the internal temperature rise of the power distribution unit can be reduced, which is beneficial to the heat dissipation of the integrated power distribution system; at the same time, the weight of a single power distribution unit can be reduced, which is beneficial to the modular maintenance of the power distribution unit.

[0040] Based on the integrated power distribution system of the above embodiment, the utility model also proposes a charging pile.

[0041] The charging pile of the embodiment of the utility model includes the integrated power distribution system and charging gun of any one of the above embodiments of the utility model, each bus corresponds to a charging gun, and the electric energy received by the bus is output to the device to be charged through the charging gun.

[0042] The charging pile according to the embodiment of the utility model can synchronously distribute power according to the demand power of the device to be charged, and at the same time meet the different power demands of different devices to be charged; it can reduce the internal temperature rise of the power distribution unit, which is beneficial to the heat dissipation of the integrated power distribution system; at the same time, it can reduce the weight of a single power distribution unit, which is beneficial to the modular maintenance of the power distribution unit.

[0043] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0044] In the present utility model, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.

[0045] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. An integrated power distribution system, characterized in that: The system comprises: N power distribution units, each of which is used to distribute input electric energy to a plurality of first electric energy output interfaces of the power distribution unit, wherein N is an integer greater than or equal to 2; A plurality of buses are arranged outside all power distribution units, each of the buses is connected to the first power output interfaces of at least two power distribution units, and each of the power distribution units is connected to at least two buses, so that the electric energy output by the first power output interface of the power distribution unit corresponding to each bus is output from the bus to the device to be charged.

2. The integrated power distribution system according to claim 1, characterized in that: Each of the power distribution units comprises: A main control unit, the main control unit is used to distribute the electric energy input to the power distribution unit according to the power demand of the device to be charged corresponding to the power distribution unit, and set the output electric energy of the power distribution unit; a power distribution unit, wherein the power distribution unit distributes the input electric energy to a plurality of first electric energy output interfaces of the power distribution unit according to the output electric energy of the power distribution unit set by the main control unit, Among them, the main control units corresponding to I power distribution units are connected to each other, and the electric energy input to these power distribution units is distributed according to the required power of the charging devices corresponding to these power distribution units, and the output electric energy of each of the I power distribution units is set, where I is an integer greater than or equal to 2 and less than or equal to N.

3. The integrated power distribution system according to claim 2, characterized in that: Each of the main control units includes a PDU control board, and the PDU control board is used to control whether each first power output interface of the power distribution unit corresponding to the main control unit outputs power.

4. The integrated power distribution system according to claim 2, characterized in that: Each of the power distribution units also includes: At least two groups of power input interface units, each group of the power input interface units is used to input the power energy of the power source corresponding to the power input interface unit into the power distribution unit; Each group of the power input interface units corresponds to a protection unit, and the protection unit is used to protect the rectification circuit between the power source corresponding to the power input interface unit and the power distribution unit.

5. The integrated power distribution system according to claim 2, characterized in that: Each of the power distribution units also includes: A data acquisition and feedback unit, the data acquisition and feedback unit is used to collect real-time data of the device to be charged corresponding to the power distribution unit, and transmit the real-time data of the device to be charged to the main control unit; A communication unit, wherein the communication unit is used to realize communication between the power distribution unit and the device to be charged corresponding to the power distribution unit, and to send the instructions of the main control unit to the power distribution unit of the power distribution unit.

6. The integrated power distribution system according to claim 2, characterized in that: Each of the power distribution units further includes: a display unit, which is used to display the status information of the main control unit of the power distribution unit and the power distribution status of the power distribution unit.

7. The integrated power distribution system according to claim 1, characterized in that: Each of the buses includes at least one power input interface and a second power output interface, wherein the power input interface is used to receive power output from the first power output interface of the power distribution unit, and the second power output interface is used to output the received power to the device to be charged.

8. A charging pile, characterized in that: It comprises an integrated power distribution system and a charging gun according to any one of claims 1 to 7, each of the bus bars corresponds to a charging gun, and the electric energy received by the bus bar is output to a device to be charged through the charging gun.

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