Distribution box and vehicle

Abstract

The present invention proposes a power distribution box and a vehicle, wherein the power distribution box comprises: a box body; a charging input port; an AC output port; a DC input port for inputting a DC signal converted from an AC signal; a DC output port for outputting a DC signal; a control port for receiving a charging control signal; a DC charging contactor, wherein a first end of the DC charging contactor is connected to the charging input port, a second end of the DC charging contactor is connected to the DC output port, and a control end of the DC charging contactor is connected to the control port; a first end of the AC charging contactor is connected to the charging input port, a second end of the AC charging contactor is connected to the AC output port, and a control end of the AC charging contactor is connected to the control port; the power distribution box of the present invention supports two charging modes, namely, DC charging and AC charging. In the DC charging mode, the charging current is increased and the charging time is reduced, thereby improving the user experience.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a power distribution box, a vehicle-mounted charging system and a vehicle. Background Art

[0002] With the rapid development of new energy vehicles and new energy facilities, new energy vehicles have once again entered the public eye. At present, plug-in hybrid models in the new energy vehicle industry are only equipped with AC charging sockets, which are directly connected to the on-board charger through the distribution box to charge the vehicle with AC.

[0003] However, in AC charging mode, due to the small charging current and long charging time, as the construction of AC charging stations gradually decreases, hybrid car owners will not be able to enjoy the convenience brought by fast charging stations due to long charging time or vehicle occupying space, resulting in a reduced user experience. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a power distribution box that can realize the switching between two charging modes: AC charging and DC charging.

[0005] A second object of the present invention is to provide a vehicle.

[0006] In order to achieve the above-mentioned purpose, a first aspect of the present invention provides a distribution box, which includes: a box body; a charging input port for inputting a charging signal; an AC output port for outputting AC power; a DC input port for inputting DC power converted from the AC power; a DC output port for outputting the DC power; a control port for receiving a charging control signal; a DC charging contactor, wherein a first end of the DC charging contactor is connected to the charging input port, a second end of the DC charging contactor is connected to the DC output port, and a control end of the DC charging contactor is connected to the control port; an AC charging contactor, wherein a first end of the AC charging contactor is connected to the charging input port, a second end of the AC charging contactor is connected to the AC output port, and a control end of the AC charging contactor is connected to the control port; wherein, during AC charging, the DC charging contactor is disconnected and the AC charging contactor is closed, or, during DC charging, the DC charging contactor is closed and the AC charging contactor is disconnected.

[0007] According to the distribution box of the embodiment of the present invention, a DC charging contactor and an AC charging contactor are arranged inside the distribution box. When the charging input port receives a charging signal, the control port controls the DC charging contactor or the AC charging contactor to open or close according to the received charging control signal, that is, the DC charging circuit and the AC charging circuit are switched with each other by utilizing the opening or closing of different combinations of charging contactors, so that the vehicle can realize both DC charging and AC charging. For vehicles that only have AC charging sockets and ports, the charging port can be reused. The vehicle can realize DC charging without setting up a dedicated DC charging port, thereby reducing the vehicle charging time and improving the user experience.

[0008] In some embodiments, the charging input port, the AC output port, the DC input port and the DC output port are all arranged on the box body; the distribution box also includes a printed circuit board, which is arranged in the box body; the DC charging contactor and the AC charging contactor are arranged on the printed circuit board.

[0009] In some embodiments, the DC charging contactor includes: a first DC contactor, a first end of the first DC contactor is connected to the charging input port, a second end of the first DC contactor is connected to the DC output port, and a control end of the first DC contactor is connected to the control port; a second DC contactor, a first end of the second DC contactor is connected to the charging input port, a second end of the second DC contactor is connected to the DC output port, and a control end of the second DC contactor is connected to the control port. When DC charging is performed, by controlling the closing of the first DC contactor and the second DC contactor, the input DC power can be directly input into the battery pack, thereby realizing the DC charging function of the vehicle.

[0010] In some embodiments, the power distribution box further includes: a voltage detection unit, wherein a first end of the voltage detection unit is connected to the first DC contactor and the second DC contactor respectively, and a second end of the voltage detection unit is connected to the control port, and is used to detect a DC charging voltage signal to determine the sintering state of the DC charging contactor. The sintering state of the charging contactor is detected by the voltage detection unit, and a fault alarm is issued in the sintering state to ensure power distribution safety.

[0011] In some embodiments, the power distribution box further comprises: a low voltage relay, which is arranged on the printed circuit board and connected to the control port, and is used to control the on and off of the DC charging signal. The control port is connected to a battery management system, and the on and off of the DC charging signal is controlled by the battery management system.

[0012] In some embodiments, the box body includes: an upper cover and a lower box body; wherein the charging input port, the AC output port, the DC input port, the DC output port and the control port are arranged on the side of the lower box body, and the printed circuit board is arranged in the accommodating cavity of the lower box body.

[0013] In some embodiments, the box body further includes: a sealing ring, which is arranged between the upper cover and the lower box body to ensure a stable connection between the upper cover and the lower box body.

[0014] In some embodiments, the distribution box also includes: a plurality of terminal blocks, arranged on the printed circuit board, for connecting the contactor with the corresponding ports; a low-voltage connector, arranged on the printed circuit board, for connecting the contactor, the low-voltage relay, the voltage detection unit and the control port.

[0015] In some embodiments, the power distribution box further includes: at least one fixing portion, which is disposed at the bottom of the box body and is used to cooperate with a fixing member to fix the box body.

[0016] In order to achieve the above-mentioned purpose, a vehicle is proposed in an embodiment of the second aspect of the present invention, and the vehicle includes: a battery pack; the distribution box described in the above embodiment; an on-board AC socket connected to the distribution box and used to input a charging signal; an on-board charger connected to the distribution box and used to convert the AC signal into a DC signal; a battery management system connected to the distribution box and used to output a charging control signal to control the contactor in the distribution box to charge the battery pack.

[0017] According to the vehicle of the embodiment of the present invention, based on the charging port of the reused vehicle-mounted AC socket, under different charging conditions, the DC charging circuit and the AC charging circuit can be switched with each other by using different combinations of DC charging contactors and AC charging contactors in the distribution box to be opened or closed. Compared with the vehicle that only supports AC charging, the vehicle of this embodiment does not need to be modified or equipped with a special DC charging port. Based on the AC charging port of the vehicle itself, DC charging can be achieved through the vehicle-mounted charging system of the above embodiment, thereby realizing DC fast charging, reducing the charging time and improving the user experience.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1is a schematic diagram of a circuit principle for DC charging of an electric vehicle according to an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of a circuit principle of a power distribution box according to an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the appearance of a power distribution box according to an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of the external structure of a power distribution box according to an embodiment of the present invention;

[0024] Figure 5 is a schematic diagram of the internal structure distribution of a power distribution box according to an embodiment of the present invention;

[0025] Figure 6 is a schematic diagram of the appearance of a power distribution box according to an embodiment of the present invention;

[0026] Figure 7 is a block diagram of a vehicle according to one embodiment of the present invention. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0028] For vehicles with only AC charging sockets, the on-board AC sockets are directly connected to the on-board charger through a distribution box to perform AC charging for the vehicle. However, the AC charging current is small and the charging time is long. In order to realize DC charging for vehicles with AC charging function, without adding a dedicated DC charging port on the vehicle end, an embodiment of the present invention proposes a distribution box. During DC charging, the input DC is transmitted to the on-board AC charging port through a DC charging adapter, that is, through the conversion of the DC charging adapter and the power distribution control based on the multiplexing of the on-board AC charging port and the distribution box, DC charging of the vehicle can be realized.

[0029] In an embodiment, Figure 1 As shown, it is a schematic diagram of the circuit principle of a vehicle DC charging according to an embodiment of the present invention. When the vehicle is DC charged, the charging adapter 2 is connected to the vehicle AC socket 42, and the power input port of the vehicle AC socket 42 is used to receive a DC charging signal. If it is determined to be a DC charging mode, the battery management system 44 responds to the DC charging signal and controls the relevant switch units in the distribution box 1 to close or disconnect, so that the DC charging device can charge the battery pack 41. The distribution box 1 in this embodiment integrates a DC charging contactor and an AC charging contactor. By controlling the switches of different contactors, the DC circuit and the AC circuit can be switched to each other.

[0030] Reference below Figure 2-Figure 6 A power distribution box according to an embodiment of the first aspect of the present invention is described.

[0031] like Figure 2 As shown, the distribution box 1 of the embodiment of the present invention includes a box body 10, a charging input port 11, an AC output port 12, a DC input port 13, a DC output port 14, a control port 15, a DC charging contactor 17 and an AC charging contactor 18.

[0032] Among them, the charging input port 11 can be set on the box body 10 for inputting charging signals; the AC output port 12 can be set on the box body 10 for outputting AC power; the DC input port 13 can be set on the box body 10 for inputting DC power converted from AC power; the DC output port 14 can be set on the box body 10 for outputting DC power; the control port 15 is used to receive charging control signals; the first end of the DC charging contactor 17 is connected to the charging input port 11, the second end of the DC charging contactor 17 is connected to the DC output port 14, and the control end of the DC charging contactor 17 is connected to the control port 15; the first end of the AC charging contactor 18 is connected to the charging input port 11, the second end of the AC charging contactor 18 is connected to the AC output port 12, and the control end of the AC charging contactor 18 is connected to the control port 15. In an embodiment, the DC charging contactor 17 and the AC charging contactor 18 can be set on a printed circuit board in the box body 10.

[0033] During AC charging, the DC charging contactor 17 is opened and the AC charging contactor 18 is closed, or during DC charging, the DC charging contactor 17 is closed and the AC charging contactor 18 is opened.

[0034] like Figure 2 The figure shows a schematic diagram of the circuit principle of a power distribution box according to an embodiment of the present invention. When performing AC charging, the AC charging device is connected to the vehicle AC socket 42, so that the AC charging device is connected to the vehicle end. During the AC charging process, the control port 15 of the power distribution box 1 receives the AC charging control signal, controls the DC charging contactor 17 to be disconnected and controls the AC charging contactor 18 to be closed, and the AC power is input into the power distribution box 1 through the charging input port 11, and the AC power is output to the vehicle charger through the AC output port 12. The vehicle charger rectifies the AC power to convert the AC power into DC power, and the DC power is then input into the power distribution box 1 through the DC input port 13, and then output to the power battery through the DC output port 14, so as to charge the power battery.

[0035] When performing DC charging, the DC charging device is matched and connected with the vehicle-mounted AC socket 42 through the charging adapter 2, so that the DC charging device can charge the vehicle end. During the DC charging process, the control port 15 of the distribution box 1 receives the DC charging control signal, controls the DC charging contactor 17 to close and controls the AC charging contactor 18 to disconnect. DC power is input through the charging input port 11, and DC power is directly output to the power battery through the DC output port 14, thereby realizing DC charging for the power battery.

[0036] According to the distribution box 1 of the embodiment of the present invention, a DC charging contactor 17 and an AC charging contactor 18 are arranged inside the distribution box 1. When the charging input port 11 receives the charging current, the control port 15 receives different charging control signals according to the charging current, and controls the DC charging contactor 17 or the AC charging contactor 18 to open or close. That is, the opening or closing of different combinations of charging contactors is used to realize the mutual switching of the AC charging circuit and the DC charging circuit. Compared with vehicles that only support AC charging, the distribution box 1 implemented in the present invention enables the vehicle to realize both AC charging and DC charging. When DC charging is performed, the charging current is increased, the vehicle charging time is reduced, and the user experience is improved.

[0037] In some embodiments, Figure 2 As shown, the charging input port 11, AC output port 12, DC input port 13 and DC output port 14 of the distribution box 1 are all arranged on the box body 10; the distribution box 1 also includes a printed circuit board, which is arranged in the box body 10; the DC charging contactor 17 and the AC charging contactor 18 are arranged on the printed circuit board, and by integrating the DC charging contactor 17 and the AC charging contactor 18 on the printed circuit board inside the distribution box 1, when DC charging or AC charging is performed, the DC charging circuit and the AC charging circuit are switched by controlling the opening or closing of the DC charging contactor 17 and the AC charging contactor 18, thereby realizing the DC charging and AC charging functions of the vehicle.

[0038] In some embodiments, the DC charging contactor 17 includes a first DC contactor, for example, denoted as RELAYE1, wherein the first end of the first DC contactor RELAYE1 is connected to the charging input port 11, the second end of the first DC contactor RELAYE1 is connected to the DC output port 13, and the control end of the first DC contactor RELAYE1 is connected to the control port 15; a second DC contactor, for example, denoted as RELAYE2, wherein the first end of the second DC contactor RELAYE2 is connected to the charging input port 11, the second end of the second DC contactor RELAYE2 is connected to the DC output port 14, and the control end of the second DC contactor RELAYE2 is connected to the control port 15.

[0039] like Figure 2As shown, during AC charging, the control port 15 receives an AC charging control signal, controls the first DC charging contactor RELAYE1 and the second DC charging contactor RELAYE2 to be disconnected according to the AC charging control signal, and controls the AC charging contactor such as RELAYE3 to be closed, and the AC power is input into the distribution box 1 through the charging input port 11, and the AC power is output to the on-board charger through the AC output port 12. The on-board charger can convert the AC power into DC power, and the DC power is then input into the distribution box 1 through the DC input port 13, and then output to the power battery through the DC output port 14, so as to perform AC charging on the power battery.

[0040] During DC charging, the control port 15 receives a DC charging control signal, controls the first DC charging contactor RELAYE1 and the second DC charging contactor RELAYE2 to close according to the charging control signal, and controls the AC charging contactor RELAYE3 to open. DC charging is input through the charging input port 11, and DC power is directly output to the power battery through the DC output port 14 to perform DC charging for the power battery.

[0041] In some embodiments, the distribution box 1 also includes a voltage detection unit 19, which can be set on a printed circuit board. The first end of the voltage detection unit 19 is connected to the first DC contactor RELAYE1 and the second DC contactor RELAYE2 respectively, and the second end of the voltage detection unit 19 is connected to the control port 15 for detecting a DC charging voltage signal to determine the sintering state of the DC charging contactor.

[0042] In an embodiment, the voltage detection unit 19 may include HTL (High Threshold Logic). Taking the HTL circuit as an example, at the beginning and end of DC charging, the HTL circuit detects whether there is a high voltage signal in the DC circuit. If so, the HTL circuit outputs a low voltage signal and feeds it back to the battery management system through the control port 15. When the battery management system receives the low voltage signal, it determines that the first DC charging contactor RELAYE1 and the second DC charging contactor RELAYE2 are sintered, that is, the DC charging contactor 17 is sintered, and a fault alarm is issued, and charging is not allowed to continue, so as to protect the safety of DC charging. Among them, the low voltage signal output by the HTL circuit is generally less than 1V.

[0043] If it is detected that there is no high voltage signal on the DC circuit, the HTL circuit outputs a high voltage signal and feeds it back to the battery management system through the control port 15. The battery management system receives the high voltage signal and determines that the first DC charging contactor RELAYE1 and the second DC charging contactor RELAYE2 are not sintered. The high voltage signal output by the HTL circuit is generally greater than 9V.

[0044] In some embodiments, the distribution box 1 further includes a low-voltage relay 20 , which is disposed on a printed circuit board and connected to the control port 15 for controlling the on and off of a DC charging signal.

[0045] In an embodiment, a low-voltage relay 20, for example, denoted as RELAYE4, is connected to a control port 15, and the control port 15 is connected to a battery management system. The charging control signal output by the battery management system controls the on and off of the DC signals of the charging pile, such as S+ and S- signals.

[0046] In some embodiments, Figure 3 , which is a schematic diagram of the appearance of a power distribution box according to an embodiment of the present invention. The box body 10 includes an upper cover 21 and a lower box body 22; wherein, the charging input port 11, the AC output port 12, the DC input port 13, the DC output port 14 and the control port 15 are arranged on the side of the lower box body 22, and the printed circuit board can be arranged in the accommodating cavity of the lower box body 22. The power distribution box 1 is smaller in size through such an integrated structure, and is more convenient to install on the vehicle end.

[0047] In some embodiments, Figure 4 , which is a schematic diagram of the external structure of a distribution box according to an embodiment of the present invention. The box body 10 further includes a sealing ring 23, which is disposed between the upper cover 21 and the lower box body 22, so that the connection between the upper cover 21 and the lower box body 22 is tighter, and water vapor and dust can be prevented from entering the box body, so as to protect the port circuit inside.

[0048] In some embodiments, Figure 5 As shown, the distribution box 1 also includes a plurality of terminal blocks 24 and low-voltage connectors 25. The terminal blocks 24 are arranged on a printed circuit board 27 for connecting the contactor with the corresponding port; the low-voltage connectors 25 are arranged on the printed circuit board 27 for connecting the contactor, the low-voltage relay 20, the voltage detection unit 19 and the control port 15.

[0049] like Figure 5 FIG. 1 is a schematic diagram of the internal structure of a power distribution box according to an embodiment of the present invention. A plurality of wiring blocks 24 are arranged on a printed circuit board 27. The circuit connection wires in the power distribution box 1 are connected to the wiring blocks 24 through wiring terminals and are conducted through metal such as copper foil on the printed circuit board 27.

[0050] The circuit connection line of the control port 15 is connected to the low-voltage connector 25, which is arranged on the printed circuit board 27 and is connected through the copper foil on the printed circuit board 27. Each component in the distribution box 1 can be soldered on the printed circuit board 27 and is connected through the copper foil of the printed circuit board 27.

[0051] In some embodiments, Figure 6 The power distribution box 1 further comprises at least one fixing portion 26 disposed at the bottom of the box body 10 for fixing the box body 10 with a fixing member to make the box body 10 more firmly installed.

[0052] In summary, according to the distribution box 1 of the embodiment of the present invention, a DC charging contactor 17 and an AC charging contactor 18 are arranged inside the distribution box 1. When the charging input port 11 receives a charging signal, the control port 15 receives different charging control signals according to the charging signal, and controls the DC charging contactor 17 or the AC charging contactor 18 to open or close. That is, the opening or closing of different combinations of charging contactors is utilized to realize the mutual switching of the AC charging circuit and the DC charging circuit. Compared with the distribution box that can only perform AC charging, the distribution box 1 of this embodiment has an increased charging circuit and a reduced charging time when performing DC charging, thereby reducing the vehicle charging time and improving the user experience.

[0053] A vehicle according to a second embodiment of the present invention will be described below with reference to the accompanying drawings.

[0054] Figure 7 is a block diagram of a vehicle according to an embodiment of the present invention, Figure 7 As shown, the vehicle 40 of the embodiment of the present invention includes a battery pack 41 , a power distribution box 1 , an on-board AC socket 42 , an on-board charger 43 and a battery management system 44 .

[0055] Among them, the vehicle-mounted AC socket 42 is connected to the distribution box 1 for inputting charging signals; the vehicle-mounted charger 43 is connected to the distribution box 1 for converting AC signals into DC signals; the battery management system 44 is connected to the distribution box 1 for outputting charging control signals to control the contactor in the distribution box 1 to charge the battery pack 41.

[0056] In the embodiment, when the vehicle is AC charging, when the vehicle-mounted terminal recognizes that the current charging mode is the AC charging mode, the battery management system 44 receives the AC charging signal, controls the DC charging contactor 17 in the distribution box 1 to disconnect and controls the AC charging contactor 18 to close, and the AC power is output to the on-board charger 43 through the AC output port 12. The AC power signal is rectified by the on-board charger 43 to convert the AC power into DC power, and the DC power is output through the DC output port 14 to charge the power battery.

[0057] When DC charging is performed, the vehicle-mounted end recognizes that the current charging mode is the DC charging mode, the battery management system 44 receives the DC charging signal, controls the DC charging contactor 17 to close and controls the AC charging contactor 18 to disconnect, and the DC power is directly output through the DC output port of the distribution box 1 to charge the power battery.

[0058] According to the vehicle 40 of the embodiment of the present invention, by adopting the on-board charging system 40 mentioned in the above embodiment, based on the charging port of the reused on-board AC socket 42, under different charging conditions, the DC charging contactor 17 and the AC charging contactor 18 in different combinations in the distribution box 1 are opened or closed, so as to realize the mutual switching of the DC charging circuit and the AC charging circuit. Compared with the vehicle that only supports AC charging, the vehicle 40 of this embodiment does not need to be modified or set with a special DC charging port. Based on the AC charging port of the vehicle 40 itself, DC fast charging can be realized, which reduces the charging time and improves the user experience.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0060] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A distribution box, characterized in that: include: Box body; Charging input port, used to input charging signal; AC output port, used to output AC power; A DC input port, used for inputting the DC power converted from the AC power; A DC output port, used to output the DC power; A control port, used to receive a charging control signal output by a battery management system; Wherein, the charging input port, the AC output port, the DC input port and the DC output port are all arranged on the box body; a DC charging contactor, wherein a first end of the DC charging contactor is connected to the charging input port, a second end of the DC charging contactor is connected to the DC output port, and a control end of the DC charging contactor is connected to the control port; an AC charging contactor, wherein a first end of the AC charging contactor is connected to the charging input port, a second end of the AC charging contactor is connected to the AC output port, and a control end of the AC charging contactor is connected to the control port; During AC charging, the DC charging contactor is disconnected and the AC charging contactor is closed, AC power is input into the box body through the charging input port, output to the on-board charger through the AC output port, then input into the box body through the DC input port, and then output to the power battery through the DC output port, or, during DC charging, the DC charging contactor is closed and the AC charging contactor is disconnected.

2. The power distribution box according to claim 1, characterized in that: The power distribution box further comprises a printed circuit board, and the printed circuit board is arranged in the box body; The DC charging contactor and the AC charging contactor are both arranged on the printed circuit board.

3. The power distribution box according to claim 1, characterized in that: The DC charging contactor comprises: a first DC contactor, wherein a first end of the first DC contactor is connected to the charging input port, a second end of the first DC contactor is connected to the DC output port, and a control end of the first DC contactor is connected to the control port; A second DC contactor, wherein a first end of the second DC contactor is connected to the charging input port, a second end of the second DC contactor is connected to the DC output port, and a control end of the second DC contactor is connected to the control port.

4. The power distribution box according to claim 3, characterized in that: The power distribution box also includes: A voltage detection unit, wherein a first end of the voltage detection unit is connected to the first DC contactor and the second DC contactor respectively, and a second end of the voltage detection unit is connected to the control port, and is used to detect a DC charging voltage signal to determine the sintering state of the DC charging contactor.

5. The power distribution box according to claim 2, characterized in that: The power distribution box also includes: A low-voltage relay is arranged on the printed circuit board and connected to the control port to control the on and off of the DC charging signal.

6. The power distribution box according to claim 1, characterized in that: The box body comprises: Upper cover and lower box; Wherein, the charging input port, the AC output port, the DC input port, the DC output port and the control port are arranged on the side of the lower box body, and the printed circuit board is arranged in the accommodating cavity of the lower box body.

7. The power distribution box according to claim 6, characterized in that: The box body also includes: A sealing ring is arranged between the upper cover and the lower box body.

8. The power distribution box according to any one of claims 1 to 5, characterized in that: The power distribution box also includes: A plurality of wiring sockets are arranged on the printed circuit board and are used for connecting the contactors with corresponding ports; The low-voltage connector is arranged on the printed circuit board and is used for connecting the contactor, the low-voltage relay, the voltage detection unit and the control port.

9. The power distribution box according to claim 1, characterized in that: The power distribution box also includes: At least one fixing portion, which is arranged at the bottom of the box body and is used to cooperate with a fixing member to fix the box body.

10. A vehicle, characterized in that: include: Battery pack; The distribution box according to any one of claims 1 to 9; An on-board AC socket, connected to the power distribution box, for inputting a charging signal; An on-board charger, connected to the power distribution box, for converting an AC signal into a DC signal; A battery management system is connected to the power distribution box and is used to output a charging control signal to control the contactor in the power distribution box to charge the battery pack.

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