Battery replacement high-voltage box

Abstract

The utility model relates to the technical field of electric automobile battery replacement, in particular to a battery replacement high-voltage box which comprises a box body, the box body is composed of an upper cover plate, a bottom panel, a front panel, a rear panel, a left panel and a right panel, a supporting frame is arranged in the box body and divided into a first layer frame and a second layer frame from top to bottom, the first layer frame is provided with a high-voltage power distribution unit, and the second layer frame is provided with a high-voltage power distribution unit. And the second layer of frame is provided with a low-voltage management unit, the front panel is provided with a battery high-voltage input interface, and the upper cover plate is provided with a battery replacement connector which is electrically connected with the battery high-voltage input interface through the high-voltage power distribution unit. Compared with an existing high-voltage box, the high-voltage box provided by the utility model has the advantages that the structural strength, the rigid strength and the stability of the whole high-voltage box are improved through the arranged supporting frame, extrusion force possibly generated outside in the battery replacement process can be borne, and the problem that the high-voltage box is damaged due to deformation of the box body of the high-voltage box is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle battery swapping technology, specifically a battery swapping high-voltage box. Background Technology

[0002] Currently, heavy-duty truck battery swapping can be divided into top-mounted, bottom-mounted, and side-mounted types based on the swapping method. Regardless of the swapping method, heavy-duty trucks carry a relatively large amount of electricity. The high-voltage power distribution system includes numerous interfaces and related connecting cables for charging, discharging, swapping, and communication. The system is complex, has many failure points, and requires a large installation space.

[0003] To address the aforementioned issues, Chinese utility model patent CN 212164034 U discloses a multi-functional high-voltage box, comprising a housing, a rectifier, a voltage regulator, a water-cooling assembly, and a power distribution component. The housing includes a base, a top mount connected to the base, and a cover plate connected to the top mount. The base has a mounting groove, the top mount covers the mounting groove, the top mount has a receiving groove, and the cover plate covers the receiving groove. The rectifier is positioned within the mounting groove of the base. The voltage regulator is positioned within the mounting groove of the base, arranged parallel to the rectifier, and electrically connected to it. The water-cooling assembly corresponds to the positions of the rectifier and the voltage regulator. The power distribution component is positioned within the receiving groove of the top mount.

[0004] This technical solution effectively improves the integration of the high-voltage box and simplifies the connection structure of the system. However, the box has poor resistance to deformation. During the battery swapping process, a certain force needs to be applied to overcome the friction between the high-voltage box and the vehicle installation position. The squeezing force generated during the process may cause the box to deform, which may lead to the failure or damage of the components inside the high-voltage box. Utility Model Content

[0005] The purpose of this invention is to enhance the rigidity of the high-voltage box and prevent the components inside the high-voltage box from failing or being damaged due to deformation of the box.

[0006] The present invention adopts the following technical solution:

[0007] A battery swapping high-voltage box includes a box body, which is composed of an upper cover, a bottom panel, a front panel, a rear panel, a left panel, and a right panel. The box body is provided with a support frame for supporting and reinforcing the box body. The support frame is divided into a first layer frame and a second layer frame from top to bottom. The first layer frame is provided with a high-voltage power distribution unit, and the second layer frame is provided with a low-voltage management unit. The front panel is provided with a battery high-voltage input interface, and the upper cover is provided with a battery swapping connector. The battery swapping connector is electrically connected to the battery high-voltage input interface through the high-voltage power distribution unit.

[0008] Furthermore, the high-voltage power distribution unit includes copper busbars, contactors, and current sensors.

[0009] Furthermore, the low-voltage management unit includes a controller.

[0010] Furthermore, the battery swapping connector is a battery swapping connector with the same port for charging, discharging, and battery swapping.

[0011] Furthermore, the upper cover plate is provided with supporting reinforcing ribs for fixing the battery swapping connector.

[0012] Furthermore, the rear panel and the bottom panel have a hollow structure in the middle, and a rear inspection panel and a bottom inspection panel are respectively provided at the hollow positions of the rear panel and the bottom panel.

[0013] Furthermore, the inner sides of the rear inspection panel and the bottom inspection panel are provided with sealing strips or sealing rings.

[0014] Furthermore, a sealing strip is provided on the inner side of the upper cover plate and the bottom surface.

[0015] Furthermore, the left panel is provided with an internal communication interface, an antenna module, and a wiring port. The internal communication interface is connected to the battery pack and the controller, and the wiring port is connected to the wiring ports of the controller and the antenna module, respectively.

[0016] Furthermore, the right panel is provided with a debugging port, a vent valve, and a PE interface for debugging the controller.

[0017] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages:

[0018] 1. The internal support frame of this utility model improves the overall structural strength, rigidity and stability of the high-voltage box compared with the existing high-voltage box. It can withstand the external squeezing force that may be generated during the power swapping process and effectively prevent the high-voltage box from being damaged due to deformation of the box body.

[0019] 2. This utility model integrates multiple battery swapping connectors, supports multi-channel charging and discharging, and the battery swapping connectors are for charging, discharging, and swapping at the same port. Compared with the prior art, it simplifies the system structure, reduces potential failure points, lowers maintenance costs, and improves the system's adaptability and compatibility between devices.

[0020] 3. The tail of the battery swapping connector uses a copper busbar connection, replacing the traditional high-voltage cable connection, reducing installation space requirements. The copper busbar also has excellent conductivity, exhibiting lower resistance and heat loss when transmitting large currents, thereby improving energy efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the rear inspection panel and the bottom inspection panel of this utility model.

[0023] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0024] Figure 4 This is a bottom view of the top cover plate of this utility model.

[0025] Figure 5 This is the right view of the present invention.

[0026] Figure 6 This is a bottom view of the present invention.

[0027] The components in the diagram are labeled as follows: Box 10, Top Cover 11, Front Panel 12, Rear Panel 13, Rear Inspection Panel 131, Left Panel 14, Right Panel 15, Bottom Panel 16, Bottom Inspection Panel 161, Support Frame 20, First Layer Frame 21, Second Layer Frame 22, High Voltage Distribution Unit Support Plate 211, Low Voltage Management Unit Support Plate 221, Battery High Voltage Input Interface 30, Battery Swapping Connector 40, Support Reinforcing Rib 41, High Voltage Distribution Unit 50, Copper Busbar 51, Contactor 52, Current Sensor 53, Controller 60, Antenna Module 70, Wiring Port 71, Internal Communication Interface 72, Vent Valve 80, Debug Port 90, PE Interface 100. Detailed Implementation

[0028] The specific implementation of the present invention will now be described with reference to the accompanying drawings.

[0029] Reference Figure 1 , Figure 5 and Figure 6 A high-voltage battery swapping box includes a box body 10, which is composed of an upper cover plate 11, a front panel 12, a rear panel 13, a left panel 14, a right panel 15, and a bottom panel 16. The front panel 12, rear panel 13, left panel 14, and right panel 15 are integrally formed from a single piece of iron plate. An internal support frame 20 is provided for reinforcement and support. The upper cover plate 11 is fixed to the support frame 20 with bolts. A sealing strip is provided on the inner side of the upper cover plate 11 to provide dust and water protection when the upper cover plate 11 is locked. The bottom panel 16 is fixed to the support frame 20 by welding.

[0030] Reference Figure 3 The support frame 20 is a rectangular prism structure. The support frame 20 is divided into a double-layer frame structure by the high-voltage power distribution unit support plate 211. Specifically, it includes a first layer frame 21 and a second layer frame 22 from top to bottom. The double-layer frame structure sets the high-voltage power distribution unit 50 and the low-voltage management unit in the high-voltage box on the first layer frame 21 and the second layer frame 22 respectively, effectively ensuring electrical safety and improving space utilization.

[0031] The high-voltage distribution unit support plate 211 is bolted to the four prisms of the support frame 20. It is used to mount the high-voltage distribution unit 50 of the battery swapping high-voltage box. A copper busbar 51, a contactor 52, and a current sensor 53 are bolted to the high-voltage distribution unit support plate 211. The copper busbar 51 passes through the current sensor 53 for sensing current and is securely connected to the contactor 52. The copper busbar 51 transmits the current input from the external battery pack or charger, and the contactor 52 connects and disconnects the circuit to ensure the safe and reliable operation of the electrical equipment.

[0032] The low-voltage management unit support plate 221 is fixed to the bottom of the support frame 20 by bolts. It is used to install the low-voltage management unit of the battery swapping high-voltage box. The controller 60 is fixed to the low-voltage management unit support plate 221 by bolts. The controller 60 is connected to the contactor 52 and is used to monitor and manage the connection and disconnection of the high-voltage power line to ensure the stable operation of the circuit. It manages the high-voltage power distribution of the whole vehicle, realizes the separate control of each output, and also has communication function, which can exchange data in real time, as well as fault detection and handling function.

[0033] Reference Figure 1 and Figure 4 The upper cover plate 11 is equipped with multiple battery swapping connectors 40, and the interfaces of the battery swapping connectors 40 are the same for charging, discharging, and battery swapping. The battery swapping connectors 40 are fixed to the upper cover plate 11 by supporting reinforcing ribs 41. The lower part of the battery swapping connectors 40 is connected to the copper busbars 51 on the high-voltage power distribution unit support plate 211. The interfaces can be connected to the charging equipment of electric vehicles and battery swapping stations for power transmission between the battery pack and the electric vehicle, providing the electric vehicle with the required power and replenishing the battery pack.

[0034] Reference Figure 1 The front panel 12 is equipped with a battery high-voltage input interface 30, which is connected to the external battery pack and the internal high-voltage power distribution unit 50 to transmit the required electrical energy to the electric vehicle.

[0035] Reference Figure 2 and Figure 6 The rear panel 13 and the bottom panel 16 have a hollow structure in the middle. The rear access panel 131 and the bottom access panel 161 are respectively set in the hollow positions of the rear panel 13 and the bottom panel 16. The inner side of the rear access panel 131 and the bottom access panel 161 are provided with sealing strips or sealing rings, which play a role in dust and water protection when the rear access panel 131 and the bottom access panel 161 are locked.

[0036] Reference Figure 1An antenna module 70 is located on the upper left side of the left panel 14. The antenna module 70 transmits internal data to external devices, enabling remote monitoring and control. A wiring port 71 is located to the right of the antenna module 70, connecting the controller 60 to the antenna module 70 for transmitting the controller 60's internal data. An internal communication interface 72 is located at the lower left of the left panel 14, used for communication with an external battery pack to transmit the battery pack's internal data.

[0037] Reference Figure 5 On the upper left side of the right panel 15, there is a debugging port 90, which is the debugging interface for the controller 60 and is used to configure various parameters of the controller 60. On the upper right side of the right panel 15, there is a vent valve 80, which is used to balance the internal and external air pressure of the high-pressure box and prevent the box from deforming due to pressure difference. On the lower side of the right panel 15, there is a PE interface (ground wire connection port) 100, which is used to connect the ground wire and conduct the fault current to the ground to prevent the current from passing through the human body or other non-conductive parts and causing harm.

[0038] Specifically, this embodiment is a battery swapping high-voltage box. The battery high-voltage input interface 30 of the battery swapping high-voltage box is connected to an external battery pack. During the battery swapping process, the electric vehicle requiring battery swapping drives to a designated location. Mechanical equipment connects the battery swapping high-voltage box and the battery pack to the electric vehicle via a battery swapping connector 40, using a top-mounted, bottom-mounted, or side-mounted method. During this process, a certain pressure is applied to the battery swapping high-voltage box and the battery pack, thereby generating compressive force on the box body 10 of the battery swapping high-voltage box. This compressive force may damage the structure of the box body 10, leading to the failure of the battery swapping high-voltage box. The internal support frame 20 of the box body 10 of this invention can effectively reduce the compressive force and prevent deformation of the box body 10, thereby ensuring the stability and safety of the battery swapping high-voltage box.

[0039] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A battery swapping high-voltage box, comprising a box body, characterized in that: The box body consists of a top cover, a bottom panel, a front panel, a rear panel, a left panel, and a right panel. The box body is provided with a support frame for supporting and reinforcing the box body. The support frame is divided into a first layer frame and a second layer frame from top to bottom. The first layer frame is provided with a high-voltage power distribution unit, and the second layer frame is provided with a low-voltage management unit. The front panel is provided with a battery high-voltage input interface, and the top cover is provided with a battery swapping connector. The battery swapping connector is electrically connected to the battery high-voltage input interface through the high-voltage power distribution unit.

2. The high-voltage battery swapping box according to claim 1, characterized in that: The high-voltage power distribution unit includes copper busbars, contactors, and current sensors.

3. The high-voltage battery swapping box according to claim 1, characterized in that: The low-voltage management unit includes a controller.

4. The high-voltage battery swapping box according to claim 1, characterized in that: The battery swapping connector is a battery swapping connector with the same port for charging, discharging, and battery swapping.

5. A battery swapping high-voltage box according to claim 1, characterized in that: The upper cover plate is provided with supporting reinforcing ribs for fixing the battery swapping connector.

6. A battery swapping high-voltage box according to claim 1, characterized in that: The rear panel and the bottom panel have a hollow structure in the middle, and a rear inspection panel and a bottom inspection panel are respectively provided in the hollow positions of the rear panel and the bottom panel.

7. A battery swapping high-voltage box according to claim 6, characterized in that: The inner sides of the rear inspection panel and the bottom inspection panel are provided with sealing strips or sealing rings.

8. A battery swapping high-voltage box according to claim 1, characterized in that: The inner sides of the upper cover and bottom panel are provided with sealing strips.

9. A battery swapping high-voltage box according to claim 3, characterized in that: The left panel is provided with an internal communication interface, an antenna module and a wiring port. The internal communication interface is connected to the battery pack and the controller, and the wiring port is connected to the wiring ports of the controller and the antenna module respectively.

10. A battery swapping high-voltage box according to claim 3, characterized in that: The right panel is equipped with a debugging port, a vent valve, and a PE interface for debugging the controller.

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