Quick charging device for electric aircraft

Abstract

The utility model relates to the technical field of aircrafts, and discloses a fast charging device for an electric aircraft, which comprises a charging box, the charging box is provided with a fast charging port and a BCU socket, the fast charging port is used for connecting a charging gun to charge a battery pack, the BCU socket is connected with a battery pack two-layer BCU low-voltage acquisition line through a communication network, and the BCU socket is connected with a battery pack two-layer BCU low-voltage acquisition line through a communication network. The charging box is internally provided with a BCU jack, the BCU jack is also connected with a BCU acquisition board, the BCU acquisition board is connected with a low-voltage line of a control unit of a charging gun through a low-voltage sampling line and the charging port, the charging box is internally provided with a high-voltage plug-in support, and the high-voltage plug-in support is provided with a plurality of groups of PACK interfaces through a copper bar support. A plurality of groups of PACK interfaces are arranged according to the number of the battery packs, and the battery packs are charged through the quick charging gun, so that the problem of low charging efficiency under the conditions of long quick charging time of multiple packs in sequence and limited or insufficient quick charging pile resources is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft, and in particular to a fast charging device for an electric aircraft. Background Art

[0002] In recent years, with the rapid development of cities and the rapid increase in the population of large cities, existing passenger transportation can no longer meet people's needs. In daily life, short-distance transportation or passenger transport often uses ground transportation such as buses, cars, and trucks. These modes of transportation are often restricted by ground roads and often experience traffic congestion. In terms of aircraft, manned aircraft are suitable for short-distance transportation and will be widely used and developed now and in the future.

[0003] Due to the limited space in the fuselage of electric aircraft, the power battery system needs to be divided into several battery packs and installed in areas such as the bottom, tail, and wings of the aircraft. During charging, one fast charging gun can only charge one battery pack at a time, resulting in an inability to complete charging in a very short time and a poor user experience.

[0004] Therefore, we propose a fast charging device for electric aircraft to solve the above problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides a fast charging device for electric aircraft. By setting several groups of PACK interfaces according to the number of battery packs and charging them through a fast charging gun, it solves the problem of low charging efficiency when multiple packs are fast charged for a long time in sequence and when fast charging pile resources are limited or insufficient.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned purpose of improving battery replacement efficiency and installation efficiency, the present invention provides the following technical solutions: a fast charging device for electric aircraft, comprising a charging box, the charging box is provided with a fast charging port and a BCU socket, the fast charging port is used to connect a charging gun to charge the battery pack, the BCU socket is connected to the second-layer BCU low-voltage acquisition line of the battery pack through a communication network, the BCU socket is also connected to a BCU acquisition board, the BCU acquisition board connects the charging port to the low-voltage line of the control unit of the charging gun through a low-voltage sampling line, a high-voltage plug-in bracket is also provided in the charging box, and several groups of PACK interfaces are provided on the high-voltage plug-in bracket through a copper bus bracket, several groups of the PACK interfaces are connected to the fast charging input port of the battery pack, and the fast charging port is connected to the PACK interface through a high-voltage sampling line for collecting the dynamic voltage of the battery pack.

[0009] As a further optimization of the present invention: the communication network includes one or more of CAN, KL15, KL30, KL31, and CC.

[0010] As a further optimization of the present invention: the number of the PACK interfaces is equal to the number of aircraft battery packs.

[0011] As a further optimization of the present invention: the PACK interface includes a PACK positive electrode and a PACK negative electrode, and the PACK positive electrode and the PACK negative electrode are connected to form a quick interface.

[0012] As a further optimization of the present invention: a plurality of groups of the PACK interfaces are connected in parallel.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a fast charging device for electric aircraft, which has the following beneficial effects:

[0015] Through the fast charging device of this charging box, the fast charging pile transmits the input through the fast charging interface to each parallel PACK interface, and then connects to the fast charging port of the aircraft battery pack in turn;

[0016] The control unit of the fast charging pile conducts communication detection and monitoring with the BCU acquisition board of the charging box fast charging device, and communicates with the second-layer BCU of each battery pack of the aircraft through the BCU acquisition board of the charging box fast charging device;

[0017] Through communication between the fast charging pile, the charging box fast charging device, the battery pack fast charging port, the fast charging pile control unit and the aircraft's battery pack BMS, the fast charging pile can automatically detect the status of the battery pack to ensure safe and reliable charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the internal connection structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] In the picture: 1. Charging box; 2. PACK interface; 3. Fast charging port; 4. BCU acquisition board; 5. BCU socket; 6. Copper busbar bracket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-2 A fast charging device for an electric aircraft includes a charging box 1, which is provided with a fast charging port 3 and a BCU socket 5. The fast charging port 3 is used to connect a charging gun to charge a battery pack. The BCU socket 5 is connected to the BCU low-voltage acquisition line on the second layer of the battery pack through a communication network. The BCU socket 5 is also connected to a BCU acquisition board 4. The BCU acquisition board 4 connects the charging port 3 to the low-voltage line of the control unit of the charging gun through a low-voltage sampling line. A high-voltage plug-in bracket is also provided in the charging box 1. Several groups of PACK interfaces 2 are provided on the high-voltage plug-in bracket through a copper bus bracket 6. Several groups of the PACK interfaces 2 are connected to the fast charging input port of the battery pack. The fast charging port 3 is connected to the PACK interface 2 through a high-voltage sampling line for collecting the dynamic voltage of the battery pack.

[0023] The communication network includes one or more of CAN, KL15, KL30, KL31, and CC; the number of PACK interfaces 2 is equal to the number of aircraft battery packs; the PACK interface 2 includes a PACK positive electrode and a PACK negative electrode, and the PACK positive electrode and the PACK negative electrode are connected to form a fast interface; several groups of the PACK interfaces 2 are connected in parallel.

[0024] Working principle: According to the number of aircraft battery packs, the number of PACK interfaces 2 is determined and defined as the positive and negative poles of PACK1, the positive and negative poles of PACK2, and the positive and negative poles of PACKn. The positive pole of PACK1, the positive pole of PACK2, and the positive pole of PACKn are connected in parallel, and the negative pole of PACK1, the negative pole of PACK2, and the negative pole of PACKn are also connected in parallel. These interfaces are respectively connected to the fast charging input port of the battery pack on the aircraft. The charging box 1 can solve the problem of simultaneous fast charging of multiple packs in parallel on the aircraft; the charging pile is connected to the battery pack through the BCU acquisition board 4 and the BCU socket 5, and can communicate and interact with the battery pack and coordinate the energy management and real-time detection functions of the multi-pack parallel system.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fast charging device for an electric aircraft, comprising a charging box (1), characterized in that: The charging box (1) is provided with a fast charging port (3) and a BCU socket (5), the fast charging port (3) is used to connect a charging gun to charge the battery pack, the BCU socket (5) is connected to the BCU low-voltage acquisition line of the second layer of the battery pack via a communication network, the BCU socket (5) is also connected to a BCU acquisition board (4), the BCU acquisition board (4) is connected to the fast charging port (3) and the low-voltage line of the control unit of the charging gun via a low-voltage sampling line, the charging box (1) is also provided with a high-voltage plug-in bracket, the high-voltage plug-in bracket is provided with a plurality of groups of PACK interfaces (2) via a copper busbar bracket (6), the plurality of groups of PACK interfaces (2) are connected to the fast charging input port of the battery pack, the fast charging port (3) is connected to the PACK interface (2) via a high-voltage sampling line, and is used to collect the dynamic voltage of the battery pack.

2. The fast charging device for an electric aircraft according to claim 1, characterized in that: The communication network includes one or more of CAN, KL15, KL30, KL31, and CC.

3. The fast charging device for an electric aircraft according to claim 1, characterized in that: The number of the PACK interfaces (2) is equal to the number of aircraft battery packs.

4. The fast charging device for an electric aircraft according to claim 1, characterized in that: The PACK interface (2) comprises a PACK positive electrode and a PACK negative electrode, and the PACK positive electrode and the PACK negative electrode are connected to form a quick interface.

5. The fast charging device for electric aircraft according to claim 1, characterized in that: Several groups of the PACK interfaces (2) are connected in parallel.

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