A mounting structure of a replaceable battery pack suitable for an automated battery swap station

Abstract

This application relates to a replaceable battery pack and its installation structure suitable for automated battery swapping stations. The battery pack includes a fully enclosed shell and a power module disposed within the fully enclosed shell. The power module includes a battery pack, an AC / DC conversion circuit connected to the battery pack, and a discharge component connected to the AC / DC conversion circuit. The AC / DC conversion circuit is disposed between the battery pack and the discharge component. The discharge component releases current to the outside of the battery pack. The discharge component includes a transmitting coil and a discharge plate. The discharge plate is integrally formed with one side shell of the fully enclosed shell. The transmitting coils are embedded in the discharge plate, and several transmitting coils of various shapes are arranged. The battery pack of this application adopts wireless charging and discharging technology, which is technologically advanced, easy to install and disassemble, and can realize wireless power conversion within a certain range without the need for wired connections.

Description

Technical Field

[0001] This application relates to the field of electric vehicle battery technology, and in particular to an installation structure for a replaceable battery pack suitable for automated battery swapping stations. Background Technology

[0002] Electric vehicles are vehicles powered by onboard power sources and driven by electric motors. Currently, due to limitations in battery energy, electric vehicles typically have a relatively short driving range. Given the current level of battery technology development, battery replacement has become one of the effective means to quickly replenish the driving range of electric vehicles in order to meet people's requirements for electric vehicle range.

[0003] Centralized charging stations are a new type of range-extending mode that centrally stores, charges, and distributes a large number of batteries, and provides battery swapping services for electric vehicles within the battery distribution station. When the battery swapping equipment in a centralized charging station removes the power battery from an electric vehicle, it needs to lift and move the removed power battery for replacement.

[0004] Currently, most electric vehicle battery packs use a plug-type connection method. Once an electric vehicle is submerged in water or water enters the vehicle body, water will enter the connection point between the battery pack and the vehicle body, causing water leakage and damage to the battery pack, resulting in economic losses and safety hazards. Summary of the Invention

[0005] The purpose of this application is to provide an installation structure for a replaceable battery pack suitable for automated battery swapping stations, which can effectively protect the battery pack, avoid damage caused by water ingress, and reduce the occurrence of safety accidents and property losses.

[0006] The replaceable battery pack for automated battery swapping stations provided in this application adopts the following technical solution:

[0007] A replaceable battery pack suitable for automated battery swapping stations includes a fully enclosed housing and a power module disposed within the fully enclosed housing. The power module includes a battery pack, an AC / DC conversion circuit connected to the battery pack, and a discharge component connected to the AC / DC conversion circuit. The AC / DC conversion circuit is disposed between the battery pack and the discharge component, and the discharge component releases current to the outside of the battery pack.

[0008] As a preferred technical solution of this application, the discharge assembly includes a transmitting coil and a discharge plate. The discharge plate and one side shell of the fully enclosed outer shell are an integral structure. The transmitting coil is embedded in the discharge plate, and several transmitting coils are arranged with different shapes.

[0009] As a preferred technical solution of this application, the other side of the fully enclosed shell opposite to the discharge plate is configured as a charging plate, and a receiving coil for wireless charging is embedded in the charging plate.

[0010] As a preferred technical solution of this application, reinforcing strips are provided on both the top and bottom surfaces of the fully enclosed shell, and the reinforcing strips extend to the side of the fully enclosed shell.

[0011] As a preferred technical solution of this application, at least two slots are provided on the two side walls adjacent to the discharge plate on the fully enclosed shell, and a connecting block is provided on the outer wall of the fully enclosed shell directly below the slots, with a lifting rod attached to the outer wall of the fully enclosed shell connected to the connecting block.

[0012] As a preferred technical solution of this application, the connecting block is configured as a strip block arranged in the vertical direction with a T-shaped cross-section. The lifting rod is provided with a strip hole opened in the axial direction. The connecting block passes through the strip hole, and the length of the strip hole is greater than the length of the connecting block, so that the lifting rod can move up and down and block the slot.

[0013] The mounting structure for a replaceable battery pack provided in this application adopts the following technical solution:

[0014] A replaceable battery pack mounting structure is configured as a box structure with an opening at the bottom and fixed to a car base. It includes an inner wall on one side where an external receiving component is provided, an inner mounting wall adjacent to the inner wall where the external receiving component is located, and a top wall. The external receiving component includes an external receiving plate and an external receiving coil. The external receiving coil is electrically connected to the engine of the vehicle body. A battery pack fixing component is connected to the inner mounting wall. A fixing adjustment component is provided above the battery pack fixing component. The fixing adjustment component controls the battery pack fixing component to be connected in a slot.

[0015] As a preferred technical solution of this application, the battery pack fixing assembly includes a locking rod perpendicular to the inner wall of the mounting, a lever connected to the upper side of the locking rod, and a compression spring sleeved on the locking rod. One end of the compression spring is connected to the outer side of the inner wall of the mounting, and the other end abuts against the lever. The end of the locking rod passes through the inner wall of the mounting and extends into the inner side of the inner wall of the mounting.

[0016] As a preferred technical solution of this application, the fixed adjustment assembly includes an L-shaped rotating component and a push wheel connected to one end of the rotating component. The corner position of the rotating component is rotatably connected to the outside of the corner connecting the inner wall and the top wall. A clearance groove is provided on the top wall. One side of the rotating component's rod can enter the housing through the clearance groove, and the other side of the rod is set on the outside of the housing and drives the push wheel to swing, so that the push wheel can abut against the lever.

[0017] As a preferred technical solution of this application, the lower side of one end of the locking rod located inside the box is set as an inclined slope.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. The battery pack of this application adopts a fully enclosed structure, which uses a fully enclosed shell to protect the battery pack and internal circuits, preventing water from entering the battery pack, effectively protecting the battery pack and extending its service life.

[0020] 2. The battery pack of this application uses wireless charging technology between itself and the engine of the electric vehicle, which avoids the direct connection between the battery pack and the vehicle body. This avoids the problems of easy damage and failure of plug connection in the prior art, improves the replacement efficiency and convenience of the battery pack, and is conducive to the centralized and automated replacement of the battery pack.

[0021] 3. The battery pack of this application adopts wireless charging and discharging technology, which is technologically advanced, easy to install and disassemble, and can realize wireless power conversion within a certain range without the need for wired connection.

[0022] 4. The battery pack of this application can both discharge and charge wirelessly, thus providing better protection for the battery pack.

[0023] 5. With the battery pack installation structure of this application, during battery pack installation, the battery pack is gradually placed into the installation structure. The battery pack rises and pushes the rotating component to rotate. One end of the rotating component that mounts the push wheel descends. The push wheel descends and abuts against the lever, causing the locking lever to extend. The locking lever is inserted into the slot of the battery pack shell, locking the battery pack in place, thus achieving the installation and fixation of the battery pack. When the battery pack is disassembled, the lifting rod is pushed upward. During the upward movement of the lifting rod, the locking lever is gradually pushed out of the slot, causing the battery pack to lose the support of the locking lever and be removed downward. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the battery pack in Embodiment 1 of this application;

[0025] Figure 2 This is a schematic diagram of the internal structure of the battery pack in Embodiment 1 of this application;

[0026] Figure 3 This is a schematic diagram of the battery pack mounting structure of Embodiment 2 of this application;

[0027] Figure 4 This is a schematic diagram of the connection structure between the battery pack and its mounting mechanism in Embodiment 2 of this application;

[0028] In the diagram: 1. Fully enclosed outer shell; 11. Reinforcing strip; 12. Slot; 13. Connecting block; 14. Lifting rod; 15. Clearance slot; 2. Battery pack; 3. AC / DC conversion circuit; 4. Transmitting coil; 5. Discharge plate; 6. Charging plate; 61. Receiving coil; 7. Inner mounting wall; 81. Outer receiving plate; 82. Outer receiving coil; 91. Locking rod; 92. Toggle lever; 93. Compression spring; 94. Rotating component; 95. Push wheel. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0030] Example 1: This example proposes a replaceable battery pack suitable for automated battery swapping stations, referring to... Figure 1 and 2 The battery pack includes a fully enclosed housing 1 and a power module disposed within the fully enclosed housing 1. The fully enclosed housing 1 completely surrounds the power module, effectively protecting the power module from water ingress and leakage.

[0031] The shape of the fully enclosed shell 1 is customized according to requirements; in this embodiment, a rectangle is used as an example. One sidewall of the fully enclosed shell 1 is a discharge plate 5, and the other sidewall opposite to the discharge plate 5 is a charging plate 6. The two sidewalls are used to connect with the vehicle body structure. At least two slots 12 are provided on the two sidewalls of the fully enclosed shell 1 adjacent to the discharge plate 5. In this embodiment, two slots are provided. The slots 12 are rectangular and located at the upper part of the sidewall of the fully enclosed shell 1. A connecting block 13 is provided on the outer wall of the fully enclosed shell 1 directly below the slots 13. The connecting block 13 extends vertically in a strip shape, and its cross-section is T-shaped. A lifting rod 14 is connected to the connecting block 13. The lifting rod 14 is attached to the outer wall of the fully enclosed shell 1 and is a sheet metal structure. The upper outer side is provided with a slope, and the lifting rod 14 is provided with a strip hole opened along the axial direction. The connecting block 13 passes through the strip hole, so that the lifting rod 14 is locked on the connecting block 13. The length of the strip hole is greater than the length of the connecting block 13, so that the lifting rod 14 can move up and down. Under normal conditions, the lifting rod 14 is hung on the connecting block 13. The lower end of the lifting rod 14 is lower than the lower surface of the fully enclosed shell 1. When disassembling the battery pack, the lifting rod 14 needs to be pushed up, and the lifting rod 14 can move up and block the slot 12.

[0032] A reinforcing strip 11 is provided protruding on both the top and bottom surfaces of the fully enclosed shell 1. The reinforcing strip 11 can enhance the strength of the top and bottom surfaces of the fully enclosed shell 1. In this embodiment, the reinforcing strip 11 extends to the side of the fully enclosed shell 1 and is perpendicular to the corresponding side wall of the fully enclosed shell 1.

[0033] The power module includes a battery pack 2, an AC / DC conversion circuit 3, and a discharge assembly. The battery pack 2 is arranged inside a fully enclosed housing 1. The discharge assembly is located on one side wall of the battery pack. The AC / DC conversion circuit 3 is installed as a circuit board between the battery pack 2 and the discharge assembly, connecting the battery pack 2 and the discharge assembly. It converts the AC power in the battery pack 2 into DC power and outputs it to the outside through the discharge assembly. The discharge assembly includes a transmitting coil 4 and a discharge plate 5. The discharge plate 5 is an integral structure with the side wall of the fully enclosed housing 1, that is, it exists as one side wall of the fully enclosed housing 1. The transmitting coil 4 is embedded in the discharge plate 5. In this embodiment, several transmitting coils 4 are provided, and they have different shapes, which can generate magnetic fields in different directions in different directions of the discharge plate 5.

[0034] The other side of the fully enclosed housing 1, opposite the discharge plate 5, is set as the charging plate 6. The charging plate 6 has an embedded receiving coil 61 for wireless charging. The receiving coil 61 forms a receiving circuit and is electrically connected to the battery pack 2 for connecting to an external wireless charger to charge the battery pack 2.

[0035] Example 2: An installation structure for a replaceable battery pack, referring to... Figure 3 and 4 The mounting structure is a box-like structure with an opening at the bottom, fixed to the vehicle base, forming an internal mounting space for the battery pack. The battery pack mounting structure includes an inner wall on one side where the external receiving assembly is installed, an inner mounting wall 7 adjacent to the inner wall where the external receiving assembly is located, and a top wall. The external receiving assembly includes an external receiving plate 81 and an external receiving coil 82. The external receiving plate 81 is an integral structure with the inner wall of the mounting structure's box. The external receiving coil 82 is arranged on the external receiving plate 81 in the form of a circuit, and is electrically connected to the vehicle's engine, supplying current to the engine to drive the generator.

[0036] Two mounting inner walls 7 are connected to battery pack fixing components. Each mounting inner wall 7 has two sets of battery pack fixing components. Each battery pack fixing component is provided with a fixing adjustment component above it. The battery pack fixing components are used to snap and fix the battery pack placed in the mounting space. The fixing adjustment components control the movement of the battery pack fixing components and connect the battery pack fixing components to the slot 12 of the battery pack.

[0037] The battery pack fixing assembly includes a locking lever 91, a lever 92, and a compression spring 93. The locking lever 91 is perpendicular to the mounting inner wall 7, and one end can extend through the mounting inner wall 7 into the mounting space. When the battery pack is not installed, the end of the locking lever 91 is retracted into the perforation formed in the mounting inner wall 7. The lower side of the end of the locking lever 91 located inside the housing is set as an inclined slope. The lever 92 is vertically connected to the upper side of the locking lever 91 at a position outside the mounting space. The compression spring 93 is sleeved on the locking lever 91. One end of the compression spring 93 is connected to the outer side of the mounting inner wall 7, and the other end abuts against the lever 92. In this embodiment, the locking lever 91 can only move axially. A guide structure (not shown in the figure) can be added to the outer side of the mounting inner wall 7.

[0038] The fixed adjustment assembly includes an L-shaped rotating member 94 and a push wheel 95 connected to one end of the rotating member 94. A rotating shaft is set at the corner of the rotating member 94, which is rotatably connected to the outside of the corner where the inner wall 7 of the mounting structure connects to the top wall of the housing structure. A clearance groove 15 is provided on the top wall. One side of the rotating member 94 can enter the housing through the clearance groove 15, and the other side of the rotating member 94 is set on the outside of the housing and connected to the push wheel 95. The clearance groove 15 corresponds to the upper and lower positions of the reinforcing strip 11 on the top of the battery pack. After the battery pack is installed, the reinforcing strip 11 can extend into the clearance groove 15, pushing the rotating member 94 completely out of the housing, causing the rotating member 94 to rotate around the shaft. The lower end of the rotating member 94 drives the push wheel 95 to swing towards the inner wall 7 of the mounting structure. During the movement, the push wheel 95 will abut against the lever 92, thereby pushing the locking lever 91 to extend into the mounting space and engage with the slot 12 on the battery pack.

[0039] The principle of the battery pack installation structure of this application is as follows: When installing the battery pack, lift the battery pack and place it into the installation space from bottom to top. During the upward movement of the battery pack, the rotating part 94 is lifted up. The rotating part 94 rotates, and one end of the rotating part 94 located in the installation space is pushed out of the installation space. The other end drives the push wheel 95 to swing downward. The push wheel 95 abuts against the lever 92 and gradually pushes the locking lever 91 into the installation space until the locking lever 91 is inserted into the slot 12, locking the battery pack. Then the battery pack can be released. At this time, the weight of the battery pack is fully applied to the four locking levers 91. The four locking levers 91 are under great pressure and will not retract, so they will not push the push wheel 95 in the opposite direction, but will apply a pushing force to the push wheel 95. The rotating part 94 will also apply a downward pushing force to the battery pack, further increasing the pressure applied by the battery pack to the four locking levers 91, achieving an interlocking state and effectively fixing the battery pack.

[0040] When disassembling the battery pack, push the lifting rod 14 upwards. The inclined surface at the upper end of the lifting rod 14 contacts the inclined surface on the lower surface of the locking rod 91. As the lifting rod 14 rises, it will gradually push the locking rod 91 outwards from the installation space, so that the locking rod 91 is completely disengaged from the slot 12. The battery pack is unlocked and can be disassembled.

[0041] The working principle of the battery pack in this application is as follows: the battery pack 2 outputs AC power, the AC / DC conversion circuit 3 converts the AC power into DC power and delivers it to the discharge plate 5. The transmitting coil 4 in the discharge plate 5 generates a magnetic field, which is received by the external receiving coil 82 in the external receiving plate 81. Using the principle of wireless charging technology, an induced current is generated, which powers the engine of the electric vehicle.

[0042] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An installation structure suitable for replaceable battery packs in automated battery swapping stations, characterized in that, The replaceable battery pack includes a fully enclosed housing (1) and a power module disposed within the fully enclosed housing (1). The power module includes a battery pack (2), an AC / DC conversion circuit (3) connected to the battery pack (2), and a discharge component connected to the AC / DC conversion circuit (3). The AC / DC conversion circuit (3) is disposed between the battery pack (2) and the discharge component, and the discharge component releases current to the outside of the battery pack. The discharge assembly includes a transmitting coil (4) and a discharge plate (5). The discharge plate (5) and one side of the fully enclosed shell (1) are integrally structured. The transmitting coil (4) is embedded in the discharge plate (5). Several transmitting coils (4) are provided and have different shapes. At least two slots (12) are provided on the two side walls adjacent to the discharge plate (5) of the fully enclosed shell (1). A connecting block (13) is provided on the outer wall of the fully enclosed shell (1) directly below the slot (12). A lifting rod (14) attached to the outer wall of the fully enclosed shell (1) is connected to the connecting block (13). The connecting block (13) is a strip block arranged in the vertical direction with a T-shaped cross section. The lifting rod (14) is provided with a strip hole opened in the axial direction. The connecting block (13) passes through the strip hole, and the length of the strip hole is greater than the length of the connecting block (13), so that the lifting rod (14) can move up and down and block the slot (12). The mounting structure is set as a box structure with an opening on the lower side and fixed on the car base. The mounting structure includes an inner wall on one side where an external receiving component is provided, an inner wall (7) adjacent to the inner wall where the external receiving component is located, and a top wall. The external receiving component includes an external receiving plate (81) and an external receiving coil (82). The external receiving coil (82) is connected to the external receiving plate (81). The external receiving coil (82) is electrically connected to the engine of the vehicle body. A battery pack fixing component is connected on the inner wall (7). A fixing adjustment component is provided above the battery pack fixing component. The fixing adjustment component controls the battery pack fixing component to be connected in the slot (12). The battery pack fixing assembly includes a locking rod (91) perpendicular to the mounting inner wall (7), a lever (92) connected to the upper side of the locking rod (91), and a compression spring (93) sleeved on the locking rod (91). One end of the compression spring (93) is connected to the outer side of the mounting inner wall (7), and the other end abuts against the lever (92). The end of the locking rod (91) passes through the mounting inner wall (7) and extends into the inner side of the mounting inner wall (7). The fixed adjustment assembly includes an L-shaped rotating part (94) and a push wheel (95) connected to one end of the rotating part (94). The corner position of the rotating part (94) is rotatably connected to the outside of the corner connecting the inner wall (7) and the top wall. A clearance groove (15) is provided on the top wall. One side of the rod of the rotating part (94) enters the housing through the clearance groove (15), and the other side of the rod is set on the outside of the housing and drives the push wheel (95) to swing, so that the push wheel (95) can abut against the lever (92).

2. The installation structure for a replaceable battery pack in an automated battery swapping station according to claim 1, characterized in that, The other side of the fully enclosed outer shell (1) opposite to the discharge plate (5) is set as a charging plate (6), and a receiving coil (61) for wireless charging is embedded in the charging plate (6).

3. The installation structure for a replaceable battery pack in an automated battery swapping station according to claim 1, characterized in that, The top and bottom surfaces of the fully enclosed shell (1) are provided with reinforcing strips (11), which extend to the side of the fully enclosed shell (1).

4. The installation structure for a replaceable battery pack in an automated battery swapping station according to claim 1, characterized in that, The locking rod (91) is located on the lower side of one end inside the box, which is set as an inclined slope.

Images