Battery box system for battery replacement and new energy engineering vehicle

Abstract

The utility model relates to the technical field of vehicle power devices, in particular to a battery box system for battery replacement and a new energy engineering vehicle, the new energy engineering vehicle comprises a vehicle body and the battery box system for battery replacement installed on the vehicle body, the battery box system for battery replacement comprises a battery replacement box body, and a plurality of battery boxes are arranged in the battery replacement box body. A charging socket used for being connected with a charging plug when all battery boxes are charged is arranged on one side of the left side edge and the right side edge of the battery replacing box body, and the charging socket is also arranged on the other side of the battery replacing box body, so that charging can be conveniently carried out on any side when a vehicle is parked, and the charging efficiency is improved. The problem that the vehicle can be charged only by continuously adjusting the direction of the vehicle body in some parking lots, and charging is still difficult is solved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle power unit technology, and in particular to a battery box system for battery swapping and a new energy engineering vehicle. Background Technology

[0002] In recent years, to save energy and reduce emissions and achieve the "dual carbon" goal, an increasing number of special-operation and engineering vehicles, such as logistics vehicles, garbage trucks, and mining trucks, are using power battery packs to replace fuel for power. For vehicles that use electricity as their energy source, the battery swapping mode is more efficient than the traditional charging mode and better meets the actual working conditions. Therefore, it is necessary to design a battery swapping system to improve the efficiency of charging and swapping and reduce the difficulty of charging and swapping operations.

[0003] To address the aforementioned issues, Chinese utility model patent CN215705799U, with an authorization announcement date of February 1, 2022, discloses a vehicle-mounted energy system with a replaceable battery box. This utility model includes a battery swapping box, a high-voltage box, a base, several battery boxes, and a charging gun socket (i.e., a charging outlet). The high-voltage box is located at the bottom of the battery swapping box, reducing the distance between the high-voltage box and the battery swapping connection, simplifying the cable arrangement inside the battery swapping box. It features two battery swapping connectors, which integrate charging and discharging quick-switch connectors for both charging and discharging functions.

[0004] However, the charging socket of this utility model is located on the side of the battery swapping box, and there is only one charging socket on one side. When parking, the side with the charging socket needs to be aligned with the charging pile. This makes it difficult to charge the vehicle when parking space is limited, as the vehicle's parking direction needs to be adjusted. Utility Model Content

[0005] The purpose of this invention is to provide a battery swapping system to address the problem that, in existing vehicles using swappable battery packs, the side with the charging socket needs to be aligned with the side of the parking lot equipped with a charging station when parked. This results in the vehicle needing to be adjusted in some parking areas to charge, making charging difficult in situations where parking is limited. Another purpose of this invention is to provide a new energy engineering vehicle to solve the aforementioned problems.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0007] A battery swapping system includes a battery swapping box body, in which a plurality of battery boxes are disposed. A charging socket for connecting to a charging plug when charging all the battery boxes is disposed on one of the left and right sides of the battery swapping box body, and the same charging socket is disposed on the other side of the battery swapping box body.

[0008] Furthermore, the charging sockets are provided in two sets, with one set of charging sockets on each side of the battery swapping box, and the charging sockets on the same side of the battery swapping box are connected to all battery boxes via a high-voltage box.

[0009] Furthermore, the charging sockets in the same group are arranged at intervals in the front-to-back direction.

[0010] Furthermore, a battery swapping connector integrating a charging quick-swap connector and a discharging quick-swap connector is provided at the bottom of the battery swapping box.

[0011] Furthermore, a thermal management unit for temperature control of the battery box is installed on the top of the battery swapping box.

[0012] By adopting the above technical solution, the beneficial effects of this utility model are as follows: This utility model proposes an improved battery swapping system, including a battery swapping box body, in which several battery boxes are arranged. A charging socket for connecting to the charging plug when charging all the battery boxes is provided on one of the left and right sides of the battery swapping box body. By also providing the charging socket on the other side of the battery swapping box body, it is convenient for the vehicle to be charged on either side when parked, solving the problem that the vehicle needs to be constantly adjusted in some parking areas to charge, which is still relatively difficult.

[0013] A new energy engineering vehicle includes a vehicle body and a battery swapping system installed on the vehicle body. The battery swapping system includes a battery swapping box body, which contains a plurality of battery boxes. A charging socket for connecting to a charging plug when charging all the battery boxes is provided on one of the left and right sides of the battery swapping box body. The charging socket is also provided on the other side of the battery swapping box body.

[0014] Furthermore, the charging sockets are provided in two sets, with one set of charging sockets on each side of the battery swapping box, and the charging sockets on the same side of the battery swapping box are connected to all battery boxes via a high-voltage box.

[0015] Furthermore, the charging sockets in the same group are arranged at intervals in the front-to-back direction.

[0016] Furthermore, a battery swapping connector integrating a charging quick-swap connector and a discharging quick-swap connector is provided at the bottom of the battery swapping box.

[0017] Furthermore, a thermal management unit for temperature control of the battery box is installed on the top of the battery swapping box.

[0018] The beneficial effects of adopting the above technical solution are as follows: This utility model proposes an improved new energy engineering vehicle, including a battery swapping system. The battery swapping system includes a swapping box body, in which several battery boxes are arranged. A charging socket for connecting to the charging plug when charging all the battery boxes is provided on one of the left and right sides of the swapping box body. By also providing the charging socket on the other side of the swapping box body, it is convenient for the vehicle to be charged on either side when parked, solving the problem that the vehicle needs to be constantly adjusted in some parking areas to charge, which is still relatively difficult. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of one embodiment of the battery swapping box system of this utility model;

[0020] Figure 2 This is a front view of one embodiment of the battery swapping box system of this utility model;

[0021] Figure 3 This is a right view of one embodiment of the battery swapping box system of this utility model;

[0022] Figure 4 This is a left view of one embodiment of the battery swapping box system of this utility model.

[0023] In the diagram: 1. Battery swapping box; 2. Battery box; 3. Thermal management unit; 4. Low-voltage box; 5. High-voltage box; 6. Battery swapping connector; 7. Charging socket. Detailed Implementation

[0024] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0025] This utility model proposes a battery swapping system, including a battery swapping box body containing several battery boxes. A charging socket, which connects to the charging plug, is provided on one side of the left or right side of the battery swapping box body for charging all the battery boxes. By also providing the charging socket on the other side of the battery swapping box body, it is possible to charge the vehicle from either side while it is parked, solving the problem that in some parking areas, the vehicle's orientation needs to be constantly adjusted for charging, making charging difficult.

[0026] Based on the above concept, this utility model provides various embodiments of new energy engineering vehicles for illustration.

[0027] In one basic embodiment, the new energy engineering vehicle includes a vehicle body and a battery swapping system mounted on the vehicle body, such as... Figure 1-2 As shown, the battery swapping system includes a battery swapping box 1, which includes an outer shell and a frame for placing battery boxes 2. A thermal management unit 3 and a low-voltage box 4 are installed on the top of the battery swapping box 1. Several battery boxes 2 are installed inside the battery swapping box 1. A battery swapping connector 6 is installed at the bottom of the battery swapping box 1. A high-voltage box 5 is also installed. Several battery boxes 2 are electrically connected to the high-voltage box 5 through cables. The high-voltage box 5 is then electrically connected to the battery swapping connector 6 through cables. The battery swapping connector 6 is connected to the power system on the vehicle frame.

[0028] Charging sockets 7 are provided on both the left and right sides of the battery swapping box 1, which are connected to the charging plugs when charging all the battery boxes 2. This allows the vehicle to be charged on either side when parked, solving the problem of charging difficulties when parking spaces are limited.

[0029] Based on the above embodiments, three or five charging sockets 7 can be provided on the left and right sides of the battery swapping box 1. One or two charging sockets 7 can be provided on one side of the battery swapping box 1, and two or three charging sockets 7 can be provided on the other side. In a preferred embodiment, such as... Figure 1 , 3 As shown in Figure 4, four charging sockets 7 are provided on the side of the battery swapping box 1. Two charging sockets 7 are provided on each side of the battery swapping box 1. This arrangement allows the vehicle to be charged from any side when it is parked.

[0030] Based on the above embodiments, the charging sockets 7 located on the same side of the battery swapping box 1 can be arranged at intervals in the vertical direction of the vehicle, or in a triangular arrangement. In a preferred embodiment, such as... Figure 1 , 3 As shown in Figures 4 and 5, the charging sockets 7 located on the same side of the battery swapping box 1 are arranged at intervals in the front-rear direction of the vehicle, which further facilitates charging.

[0031] Based on the above embodiments, in a preferred embodiment, the two charging sockets 7 located on the same side of the battery swapping box 1 are connected to all battery boxes via a high-voltage box, so that two charging guns can be used simultaneously for charging, thus improving charging efficiency.

[0032] Based on the above embodiments, the battery boxes 2 inside the battery swapping box 1 can be divided into three or four groups, and the multiple groups of battery boxes are connected in parallel. In a preferred embodiment, such as Figure 1-2As shown, several battery boxes 2 constitute two sets of parallel battery box groups, which simplifies the overall structure of the battery swapping box 1 and reduces the number of internal cables, making it easier to arrange.

[0033] In the above embodiments, each battery box group includes multiple battery boxes 2 connected in series, and three or five battery boxes 2 can be connected in series in one battery box group. Preferably, as follows... Figure 1-2 As shown, a set of battery boxes is arranged vertically on the frame of the battery swapping box 1. There are four battery boxes 2 connected in series in a set of battery boxes. The number of battery boxes 2 can be varied according to the actual application of the vehicle, and it is suitable for a variety of different vehicles.

[0034] In the above embodiments, such as Figure 1-2 As shown, a high-voltage box 5 is also installed at the bottom of the battery swapping box 1. With this configuration, eight battery boxes 2 and one high-voltage box 5 constitute the vehicle's power battery system. The eight battery boxes 2 are connected in parallel in two sets of battery boxes, and the battery boxes 2 in each set are connected in series. They are then connected to the high-voltage box 5. The power battery system is mainly used to provide energy recovery, storage and supply for the vehicle's on-board high-voltage electrical system. When the battery is depleted, it can be charged by the charger in the battery swapping station or by a DC charger.

[0035] In the above embodiment, a battery swapping connector 6 is provided at the bottom of the battery swapping box 1 for energy transfer between the battery box 2 and the vehicle. Preferably, a battery swapping connector 6 that integrates a charging quick-swap connector and a discharging quick-swap connector is used, which can reduce the number of battery swapping connectors 6 and reduce the difficulty of battery swapping operations.

[0036] Based on the above embodiments, two battery swapping connectors 6 can be provided, which can be 24-pin or 48-pin battery swapping connectors. In a preferred embodiment, such as... Figure 1-4 As shown, a battery swapping connector 6 is installed at the bottom of the battery swapping box. It adopts a 36-pin battery swapping connector, which further reduces the difficulty of battery swapping operation, and the 36-pin battery swapping connector can also meet the usage requirements.

[0037] In the above embodiment, the battery swapping connector 6 is connected to the high-voltage box 5 via a cable, and the high-voltage box 5 is connected to multiple battery boxes 2 via cables, thus realizing the connection between the battery swapping connector 6 and the multiple battery boxes 2.

[0038] Based on the above embodiments, in a preferred embodiment, such as Figure 1-4 As shown, a thermal management unit 3 for temperature control of the battery box 2 is installed on the top of the battery swapping box 1 to prevent the battery box 2 from being too hot or too cold and affecting the operation of the vehicle.

[0039] The built-in heating film of the battery box 2 and the thermal management unit 3 together constitute the thermal management system. The thermal management unit 3 mainly performs low-temperature heating, high-temperature heat dissipation and heat preservation management on the battery box 2, limiting the temperature rise and temperature difference of the battery box 2, thereby achieving temperature uniformity of the battery box 2, ensuring that the battery box 2 is in a suitable temperature range during operation, reducing the rate of battery performance degradation and eliminating related potential safety risks.

[0040] When the temperature of battery box 2 is too high, the refrigerant of thermal management unit 3 evaporates to lower the coolant to the target temperature, and the heat is carried out of battery box 2 through the circulation of coolant, thus dissipating the high temperature of battery box 2.

[0041] Based on the above embodiments, in a preferred embodiment, a low-voltage box 4 is also provided on the top of the battery swapping box 1.

[0042] A low-voltage box BMS master controller located at the top of the battery swapping box 1 and eight slave controllers BMUs located inside the battery box 2 together form the battery management system. The low-voltage box 4 is installed on the top layer of the battery swapping box 1. The low-voltage box 4 and the slave controllers are connected via a CAN bus. The main functions of the battery management system include data acquisition, status estimation, data display, thermal management, safety management, energy management, and fault diagnosis.

[0043] This utility model relates to a new energy engineering vehicle. When the vehicle enters a parking lot and needs to be charged, it can be charged regardless of which side of the vehicle is facing the charging pile. When the vehicle needs to swap batteries, it is only necessary to disconnect one battery swap connector 6 from the vehicle to perform the battery swap. This greatly reduces the difficulty of charging and swapping the vehicle.

[0044] The specific structure of the battery box system for battery swapping of this utility model is consistent with that of the battery box system for battery swapping in the above-mentioned new energy engineering vehicle embodiment, and will not be described again in this article.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A battery swapping system, comprising a swapping box body, wherein a plurality of battery boxes are disposed within the swapping box body, and a charging socket for connecting to a charging plug for charging all the battery boxes is disposed on one of the left and right sides of the swapping box body, characterized in that, The aforementioned charging socket is also installed on the other side of the battery swapping box.

2. The battery swapping system according to claim 1, characterized in that, The charging sockets are provided in two sets. Each side of the battery swapping box is provided with one set of charging sockets, and the charging sockets on the same side of the battery swapping box are connected to all battery boxes through a high-voltage box.

3. The battery swapping box system according to claim 2, characterized in that, The charging sockets in the same group are arranged at intervals in the front-to-back direction.

4. The battery swapping box system according to any one of claims 1-3, characterized in that, The bottom of the battery swapping box is equipped with a battery swapping connector that integrates a charging quick-switch connector and a discharging quick-switch connector.

5. The battery swapping system according to any one of claims 1-3, characterized in that, A thermal management unit for temperature control of the battery box is installed on the top of the battery swapping box.

6. A new energy engineering vehicle, comprising a vehicle body and a battery swapping system installed on the vehicle body, the battery swapping system comprising a battery swapping box body, wherein a plurality of battery boxes are disposed within the battery swapping box body, and a charging socket for connecting to a charging plug for charging all the battery boxes is disposed on one of the left and right sides of the battery swapping box body, characterized in that, The aforementioned charging socket is also installed on the other side of the battery swapping box.

7. The new energy engineering vehicle according to claim 6, characterized in that, The charging sockets are provided in two sets. Each side of the battery swapping box is provided with one set of charging sockets, and the charging sockets on the same side of the battery swapping box are connected to all battery boxes through a high-voltage box.

8. The new energy engineering vehicle according to claim 7, characterized in that, The charging sockets in the same group are arranged at intervals in the front-to-back direction.

9. The new energy engineering vehicle according to any one of claims 6-8, characterized in that, The bottom of the battery swapping box is equipped with a battery swapping connector that integrates a charging quick-switch connector and a discharging quick-switch connector.

10. The new energy engineering vehicle according to any one of claims 6-8, characterized in that, A thermal management unit for temperature control of the battery box is installed on the top of the battery swapping box.

Images