Quick-change bracket for electric vehicle and electric vehicle comprising same

Abstract

The application provides a quick-change support for an electric vehicle and an electric vehicle comprising the same. The quick-change support comprises a support body fixed to a vehicle beam; a first locking mechanism arranged on the support body, the first locking mechanism having a first cavity; and a second locking mechanism arranged on the support body and spaced apart from the first locking mechanism, the second locking mechanism having a second cavity. In a locked state, a first locking piece is locked in the first cavity by the first locking mechanism, and a second locking piece is limited in the second cavity. In the process of switching from the locked state to an unlocked state, the limitation on the second locking piece is released before the locking on the first locking piece is released. In the process of switching from the unlocked state to the locked state, the limitation of the second locking piece by the second locking mechanism and the locking of the first locking piece by the first locking mechanism are performed synchronously. The second locking mechanism makes the battery pack less likely to fall off. When locking is needed, the operation is convenient, and the installation efficiency and reliability of the battery pack are improved.

Description

Technical Field

[0001] This invention relates to the field of battery swapping for electric vehicles, and particularly to a quick-swap bracket for electric vehicles and an electric vehicle comprising the bracket. Background Technology

[0002] Existing electric vehicle battery pack installation methods are generally divided into fixed and replaceable types. Fixed battery packs are usually fixed to the vehicle, and the vehicle is used as the charging object during charging. Replaceable battery packs, on the other hand, are generally installed in a movable manner, allowing the battery pack to be removed and replaced with a new one at any time. When using this movable installation method, the locking shaft on the battery pack is usually locked to a locking mechanism at the bottom of the electric vehicle.

[0003] Replacing a battery pack involves locking and unlocking it. Generally, locking mechanisms (usually locking shafts) are installed on both sides of the battery pack. These locking mechanisms are fixed to a quick-change bracket to assemble into a quick-change bracket assembly, which is then mounted onto the chassis of the electric vehicle. The locking shafts cooperate with the locking mechanism to lock the battery pack.

[0004] In existing locks and locking mechanisms, the bolt always remains firmly against the locking shaft during locking to prevent the shaft from moving within the lock groove and thus from dislodging from the lock base groove. However, due to the swaying motion of electric vehicles during operation and the significant weight of the battery pack, the bolt's locking reliability is unstable during use, and the locking mechanism is prone to failure. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of unstable locking reliability and easy failure of locking mechanism in the prior art during use, and to provide a quick-change bracket for electric vehicles and an electric vehicle including the bracket.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] A quick-change bracket for electric vehicles, used for fixing to the beam of an electric vehicle and for mounting a battery pack, the quick-change bracket comprising:

[0008] The bracket body is fixed to the vehicle beam;

[0009] A primary locking mechanism is provided on the bracket body, and the primary locking mechanism has a primary cavity;

[0010] A secondary locking mechanism is disposed on the bracket body and spaced apart from the primary locking mechanism, and the secondary locking mechanism has a secondary cavity;

[0011] When the battery pack is in a locked state, the first-level locking member is locked in the first-level cavity by the first-level mechanism, and the second-level locking member is limited in the second-level cavity.

[0012] During the process of the battery pack switching from the locked state to the unlocked state, the secondary locking mechanism releases its limit on the secondary locking member before the primary locking mechanism releases its lock on the primary locking member.

[0013] During the process of the battery pack switching from the unlocked state to the locked state, the limiting of the secondary locking mechanism on the secondary locking member and the locking of the primary locking mechanism on the primary locking member are performed synchronously.

[0014] In this design, the secondary locking mechanism does not lock the secondary locking element, but only limits its movement. When the primary locking mechanism fails, the secondary locking mechanism protects and supports the battery pack, preventing it from falling off and improving the locking reliability of the latch during use, thus providing excellent protection for the battery pack. When switching the battery pack from the locked to the unlocked state, the secondary locking mechanism first releases its limit on the secondary locking element under the action of the unlocking mechanism, followed by the primary locking mechanism releasing its lock on the primary locking element. The secondary locking mechanism does not affect the unlocking operation of the primary locking mechanism, ensuring smooth and reliable unlocking. Furthermore, during the switch from the unlocked to the locked state, the locking of the primary locking element by the primary locking mechanism and the limiting of the secondary locking element by the secondary locking mechanism are synchronized, facilitating operation and improving the installation efficiency and reliability of the battery pack.

[0015] Preferably, the primary locking mechanism includes a primary locking link, a primary locking base, and a primary locking tongue. The primary locking base is mounted on the bracket body and has a primary opening and a primary cavity extending from the primary opening. The primary opening is used to allow the primary locking member to enter the primary cavity. The primary locking link is used to drive the primary locking tongue to move relative to the primary locking base under the action of external force, so that the primary locking tongue changes between a locked state and an unlocked state relative to the primary locking base.

[0016] The secondary locking mechanism includes a secondary locking link, a secondary locking base, and a secondary locking tongue. The secondary locking base is mounted on the bracket body and has a secondary opening and a secondary cavity extending from the secondary opening. The secondary opening is used for the secondary locking member to enter the secondary cavity. The secondary locking link is used to drive the secondary locking tongue to move relative to the secondary locking base under the action of external force, so that the secondary locking tongue changes between a locked state and an unlocked state relative to the secondary locking base.

[0017] When the battery pack is in a locked state, the primary locking member is located in the primary cavity and abuts against the primary locking tongue, and the secondary locking member is located in the secondary cavity and forms a gap with the secondary locking tongue. The gap is configured to restrict the secondary locking member from leaving the secondary cavity.

[0018] In this design, the aforementioned gap ensures that the secondary locking tongue does not lock the secondary locking component, but only limits its movement. When switching the battery pack from the locked to the unlocked state, the unlocking mechanism, acting simultaneously with the unlocking push rod on both the primary and secondary locking links, allows the unlocking push rod to directly lift the locking link, thus releasing the limitation on the secondary locking component. However, since the primary locking component is in contact with the primary locking tongue, the unlocking push rod cannot directly lift the primary locking link. Instead, the battery pack needs to be moved away from the primary locking tongue by the battery swapping equipment to create a certain gap between the primary locking component and the primary locking tongue. The moment this gap is reached, the unlocking push rod can lift the primary locking link. Simultaneously, the gap between the secondary locking tongue and the secondary locking component prevents them from contacting each other, making the secondary locking tongue less susceptible to damage during use and less prone to impact and friction. This ensures the stability and reliability of the secondary locking mechanism, significantly improving the safety and stability of the electric vehicle.

[0019] Preferably, the gap is not less than 2mm and not greater than the radius of the secondary locking member.

[0020] In this solution, the gap is set within the above-mentioned range, which allows for timely release of the limit when it is necessary to release the limit of the secondary locking component, while preventing the secondary locking component from sliding out of the secondary cavity when it is necessary to limit the secondary locking component, thus ensuring stable and reliable limiting of the secondary locking component.

[0021] Preferably, the secondary locking mechanism further includes a connecting seat, which is mounted on the bracket body and spaced apart from the secondary lock base. The secondary locking link has a first end and a second end along its length. The first end of the secondary locking link is connected to the secondary locking tongue, and the second end of the secondary locking link is connected to the connecting seat. The connecting seat is configured to allow the first end of the secondary locking link to rotate relative to the secondary lock base.

[0022] In this solution, the connecting seat can connect the second end of the secondary locking link to the bracket body, and at the same time assist in realizing the rotation of the secondary locking link relative to the lock base, so as to limit or release the secondary locking member.

[0023] Preferably, the connecting seat has the same structure as the secondary lock base.

[0024] In this solution, the above-mentioned structural configuration makes the connecting seat and the secondary lock base have the same structure, which helps to ensure the support and limiting effect of the battery pack. Correspondingly, it also improves the applicability of the lock base and helps to save costs.

[0025] Preferably, the secondary locking mechanism further includes a connecting bolt, which is connected to the connecting seat, and the second end of the secondary locking link is connected to the connecting bolt;

[0026] The structure of the connecting bolt is the same as that of the secondary bolt.

[0027] In this solution, the above-mentioned structural configuration ensures that the structures at both ends of the secondary locking linkage are identical, which helps to further guarantee the support and limiting effect on the battery pack, and also helps to ensure the locking synchronization of the primary locking mechanism and the secondary locking mechanism.

[0028] Preferably, the primary locking link has an outwardly protruding primary unlocking part on the side facing the primary locking base, and the secondary locking link has an outwardly protruding secondary unlocking part on the side facing the secondary locking base. The primary unlocking part and the secondary unlocking part are respectively used for the unlocking mechanism to abut against each other to drive the corresponding primary locking link and the secondary locking link to move, and drive the corresponding primary lock tongue and the secondary lock tongue to open.

[0029] The above-mentioned structural design in this solution facilitates unlocking and improves the unlocking efficiency of the battery pack.

[0030] Preferably, one end of the primary lock base, the secondary lock base, and the connecting seat is connected to the bracket body, and the other end extends to the lower part of the bracket body. The primary lock base has a primary opening at its lower part, and the primary opening and the primary cavity penetrate the primary lock base along the axial direction of the primary locking member. The secondary lock base and the connecting seat have a secondary opening at their lower parts, and the secondary opening and the secondary cavity penetrate the secondary lock base along the axial direction of the secondary locking member.

[0031] In this design, the battery pack is fixed to the electric vehicle via a bracket body. The primary and secondary openings are located at the bottom. The battery pack enters the corresponding cavity through the lower opening, thereby locking the battery pack inside the cavity. This prevents the battery pack from entering the cavity from the side and prevents the locking component from sliding out from one side of the cavity, thus improving the safety of battery pack locking.

[0032] Preferably, the quick-change bracket further includes a support base, which is disposed on the bracket body and spaced apart from the primary locking mechanism and the secondary locking mechanism;

[0033] The support base has a support opening and a support cavity extending from the support opening. The support opening is used to allow a three-stage locking member installed on the battery pack to enter the support cavity to support the three-stage locking member.

[0034] In this design, the support base can reliably support the battery pack through a three-stage locking mechanism, which helps to reliably install the battery pack onto the bracket body.

[0035] Preferably, one end of the support base is connected to the bracket body, and the other end extends to the lower part of the bracket body. The support base has a support opening at its lower part. The support opening and the support cavity penetrate the support base along the axial direction of the three-stage locking member.

[0036] In this design, the battery pack is fixed to the electric vehicle via a bracket body. The support opening is located at the bottom, and the battery pack enters the corresponding cavity through the support opening. By supporting the three-stage locking components within the support cavity, the battery pack is supported, preventing the battery pack from entering the support cavity from the side and preventing the three-stage locking components from sliding out from one side of the support cavity. This ensures stable support for the battery pack and helps to further improve the safety of battery pack locking.

[0037] Preferably, the quick-change bracket further includes a baffle assembly, the baffle assembly including at least a baffle, the baffle being connected to at least one end of the bracket body in the length direction of the electric vehicle, one end of the baffle being connected to the bracket body, and the other end of the baffle extending outward from the bracket body.

[0038] In this solution, the quick-change bracket has a baffle at at least one end of the bracket body along the length of the electric vehicle. This prevents mud and water from the electric vehicle's wheels from splashing onto the battery pack mounted on the quick-change bracket behind the baffle, thus effectively solving the problem of the battery pack being disturbed by foreign objects. This effectively protects the battery pack and helps improve the locking stability between the battery pack and the quick-change bracket.

[0039] Preferably, the quick-change bracket further includes a protective plate, which is connected to at least one end of the bracket body in the width direction of the electric vehicle.

[0040] In this solution, by setting a protective plate, the locking mechanism can be blocked, thereby preventing foreign objects from entering the locking mechanism, effectively protecting the locking mechanism on the bracket body, and improving locking stability.

[0041] Preferably, the bracket body has a first positioning hole on the side near the front of the electric vehicle and a second positioning hole on the side near the rear of the electric vehicle. The first positioning hole and the second positioning hole are used for the positioning pin on the battery swapping equipment to be inserted from bottom to top.

[0042] In this solution, by setting a first positioning hole and a second positioning hole on the bracket body to cooperate with the positioning pin on the battery swapping device, the positioning alignment and relative fixation of the battery swapping device and the bracket body can be achieved. This ensures that the battery swapping device will not be displaced relative to the bracket body during battery swapping, thus guaranteeing the smooth installation and removal of the battery pack on the quick-change bracket.

[0043] Preferably, the bracket body includes a crossbeam, a longitudinal beam, and a column. The longitudinal beam extends along the length of the electric vehicle and is fixed to the beam of the electric vehicle. The crossbeam is connected to the longitudinal beam through the column. The longitudinal beam, the column, and the crossbeam are connected in sequence to form a rectangular frame. The column is provided with a corresponding first positioning hole or second positioning hole.

[0044] The primary locking mechanism and the secondary locking mechanism are mounted on the longitudinal beam.

[0045] In this solution, by setting the first positioning hole and the second positioning hole on the corresponding column, interference between the positioning pin and the components on the crossbeam and longitudinal beam can be avoided after the positioning pin is inserted.

[0046] Preferably, the lower surface of the pillar at the rear end of the electric vehicle is higher in the height direction than the lower surface of the pillar at the front end of the electric vehicle.

[0047] In this solution, the above-mentioned structural configuration is adopted. When the column at the front end of the electric vehicle is long, the column at the rear end of the electric vehicle is shortened. This ensures the stable positioning of the battery swapping equipment and the bracket body, while preventing the battery pack on the battery swapping equipment from interfering with the first column when it is installed into the quick-swap bracket.

[0048] Preferably, the quick-change bracket further includes an adapter, which includes a base and a protrusion disposed on the base. One of the base and the protrusion is connected to the bracket body, and the other is connected to the beam of the electric vehicle.

[0049] In this solution, by selecting adapters with different protrusion heights, the same quick-change bracket can be assembled with electric vehicles of different models, avoiding the need to design a quick-change bracket for each model and improving the versatility of the quick-change bracket.

[0050] Preferably, the quick-change bracket further includes a visual recognition component, which includes a mounting frame and a mounting plate. The first end of the mounting frame is connected to the bracket body, and the second end extends to the outside of the bracket body. The mounting plate is connected to the end of the mounting frame that extends to the outside of the bracket body. The mounting plate is provided with visual recognition points that can be recognized by a visual device.

[0051] In this solution, a visual recognition component enables parking and positioning of electric vehicles. This improves the alignment accuracy between the battery swapping equipment and the electric vehicle, thus increasing the success rate of battery swapping. The mounting plate is securely installed on the longitudinal beam using a mounting bracket, ensuring that it does not shift during the visual recognition process on the battery swapping equipment, thereby guaranteeing the positioning accuracy of the equipment. The visual recognition points make the mounting plate easier for the visual equipment to identify.

[0052] Preferably, the bracket body includes at least a longitudinal beam that extends along the length of the electric vehicle and is fixed to the vehicle beam;

[0053] The longitudinal beam includes a top plate, a side plate, and a bottom plate connected in sequence. The side plate is fixedly connected to the vehicle beam. The top plate and the bottom plate extend outward from both sides of the side plate along the axial direction of the first-level locking member and the second-level locking member, respectively. The first-level locking mechanism and the second-level locking mechanism are located on the bottom plate.

[0054] The first end of the mounting bracket is attached to and detachably connected to the side of the top plate facing the bottom plate.

[0055] In this design, the first end of the mounting bracket is connected between the top plate and the bottom plate, without occupying the space at the top of the top plate, and without interfering with the external structure set at the top of the top plate. At the same time, it can also protect the mounting bracket.

[0056] Preferably, the support body further includes a plurality of reinforcing ribs, which are snapped between the top plate and the bottom plate, and the side of the reinforcing rib facing the side plate is connected to the side plate;

[0057] The mounting frame includes two opposing side connecting plates and a connecting horizontal plate connected between the two side connecting plates. The connecting horizontal plate is located at the first end of the mounting frame and forms a recess with the two side connecting portions. The recess is used to accommodate the reinforcing rib plate. The end of the side connecting plate is attached to and detachably connected to the side of the top plate facing the bottom plate.

[0058] And / or,

[0059] The connecting cross plate is attached to and detachably connected to the side of the reinforcing rib away from the side plate.

[0060] In this design, a connecting crossplate connects the two side connecting plates, linking the two isolated side connecting plates into a single structure, facilitating the connection between the mounting bracket and the longitudinal beam. Furthermore, the recessed portion avoids the reinforcing ribs, allowing for convenient connection between the mounting bracket and the longitudinal beam without compromising the reinforcement effect of the longitudinal beam. Additionally, connecting the crossplate to the reinforcing ribs increases the number of connection points between the mounting bracket and the longitudinal beam, improving the reliability of the connection and thus ensuring the reliability of the visual recognition components.

[0061] Preferably, the mounting bracket further includes a central connecting plate connected between the two side connecting plates, the central connecting plate being connected to the bottom of the side connecting plates, and both ends of the central connecting plate being connected to the connecting cross plate and the mounting plate, respectively.

[0062] In this design, the central connecting plate connects between the side connecting plates, which improves the stability of the mounting bracket and ensures its strength, thereby helping to guarantee the reliability of the visual recognition components.

[0063] Preferably, the side connecting plate has an L-shaped structure and includes a horizontal connecting part and a vertical connecting part that are connected end to end, and the two ends of the connecting horizontal plate are connected between the vertical connecting parts of the two side connecting plates;

[0064] And / or,

[0065] The side connecting plate and / or the middle connecting plate are provided with multiple weight-reducing holes at intervals.

[0066] In this design, the weight-reducing holes can reduce the weight of the mounting bracket, thereby helping to reduce the overall weight of the quick-change bracket.

[0067] Preferably, the horizontal connecting portion has a bent portion formed on the side opposite to the vertical connecting portion, the bent portion being disposed opposite to the vertical connecting portion and extending from the horizontal connecting portion toward the base plate.

[0068] In this design, the bending section can strengthen the side connecting plate, which helps to improve the overall strength of the mounting bracket and thus helps to ensure the reliability of the visual recognition components.

[0069] The present invention also provides an electric vehicle, which includes a battery pack and the aforementioned quick-change bracket for battery vehicles, wherein the battery pack is mounted on the bracket body.

[0070] The positive and progressive effects of this invention are as follows:

[0071] In this quick-change bracket for electric vehicles, the secondary locking mechanism does not lock the secondary locking element, but only limits its movement. When the primary locking mechanism fails, the secondary locking mechanism protects and supports the battery pack, preventing it from falling off and improving the locking reliability of the latch during use, thus providing excellent protection for the battery pack. Furthermore, when switching the battery pack from the locked to the unlocked state, the secondary locking mechanism first releases its limit on the secondary locking element under the action of the unlocking mechanism, followed by the primary locking mechanism releasing its lock on the primary locking element. During the switch from the unlocked to the locked state, the locking of the primary locking element by the primary locking mechanism and the limiting of the secondary locking element by the secondary locking mechanism are synchronized, making operation convenient and improving the installation efficiency and reliability of the battery pack. Attached Figure Description

[0072] Figure 1 This is a schematic diagram of the overall structure of the quick-change bracket for electric vehicles according to Embodiment 1 of the present invention.

[0073] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle.

[0074] Figure 3 This is another overall structural schematic diagram of the quick-change bracket for electric vehicles according to Embodiment 1 of the present invention.

[0075] Figure 4 This is a partial structural schematic diagram of the quick-change bracket for electric vehicles according to Embodiment 1 of the present invention.

[0076] Figure 5 This is a schematic diagram of the first-stage locking mechanism of the quick-change bracket for electric vehicles according to Embodiment 1 of the present invention.

[0077] Figure 6 This is a schematic diagram of the secondary locking mechanism of the quick-change bracket for electric vehicles according to Embodiment 1 of the present invention.

[0078] Figure 7 This is a schematic diagram of the visual recognition component of the quick-change bracket for electric vehicles according to Embodiment 1 of the present invention.

[0079] Figure 8 This is a schematic diagram of the structure of the quick-change bracket adapter for electric vehicles in one direction according to Embodiment 1 of the present invention.

[0080] Figure 9 This is a schematic diagram of the adapter of the quick-change bracket for electric vehicles according to Embodiment 1 of the present invention in another direction.

[0081] Figure 10This is a schematic diagram of the support base of the adapter for the quick-change bracket for electric vehicles according to Embodiment 1 of the present invention.

[0082] Figure 11 This is a schematic diagram of the structure of the first-stage locking mechanism of the quick-change bracket for electric vehicles in Embodiment 1 of the present invention, which locks the first-stage locking component.

[0083] Figure 12 This is a schematic diagram of the secondary locking mechanism of the quick-change bracket for electric vehicles in Embodiment 1 of the present invention, which limits the movement of the secondary locking component.

[0084] Figure 13 This is a partial structural diagram of the electric vehicle according to Embodiment 1 of the present invention, showing the connection between the quick-change bracket and the vehicle beam.

[0085] Explanation of reference numerals in the attached figures:

[0086] 1. Quick-change bracket; 10. Bracket body; 101. Longitudinal beam; 1011. Top plate; 1012. Side plate; 1013. Bottom plate; 102. Horizontal beam; 103. Column; 104. Reinforcing rib plate; 20. Primary locking mechanism; 201. Primary cavity; 202. Primary locking rod; 203. Primary lock base; 204. Primary bolt; 205. Primary opening; 206. Primary unlocking part; 30. Secondary locking mechanism; 301. Secondary cavity; 302. Secondary locking rod; 303. Secondary lock base; 304. Secondary bolt; 305. Secondary opening; 306. Connecting seat; 307. Connecting bolt; 308 ... locking mechanism; 302. Secondary locking mechanism; 301. Secondary locking mechanism; 301. Secondary locking mechanism; 301. Secondary locking mechanism; 301. Secondary locking mechanism; 301. Secondary locking mechanism; 301. Secondary locking mechanism; 301. Secondary locking mechanism; 301. Secondary locking mechanism; 301. Secondary locking mechanism; 301. Secondary locking mechanism; 301. Secondary locking mechanism; 1. Unlocking part; 40. Support base; 401. Support opening; 402. Support cavity; 50. Baffle; 60. First positioning hole; 70. Second positioning hole; 80. Adapter; 801. Base; 802. Protrusion; 803. Clearance groove; 804. Bolt head; 90. Vision recognition component; 901. Mounting bracket; 902. Mounting plate; 903. Side plate connecting plate; 9031. Horizontal connecting part; 9032. Vertical connecting part; 9033. Bending part; 904. Connecting horizontal plate; 905. Recessed part; 906. Middle connecting plate; 907. Weight reduction hole; 2. Vehicle beam; 3. First-level locking component; 4. Second-level locking component. Detailed Implementation

[0087] The present invention will be described more clearly and completely below with reference to a preferred embodiment and the accompanying drawings.

[0088]

Example 1

[0089] like Figure 1-13 As shown, this embodiment discloses a quick-change bracket 1 for electric vehicles and an electric vehicle. The electric vehicle includes a battery pack and the quick-change bracket 1. The quick-change bracket 1 is used to fix the electric vehicle to the vehicle beam 2 and to mount the battery pack.

[0090] Specifically, such as Figure 1-3As shown, the quick-change bracket 1 includes a bracket body 10, a primary locking mechanism 20, and a secondary locking mechanism 30. The bracket body 10 is fixed to the vehicle beam 2. The primary locking mechanism 20 is mounted on the bracket body 10 and has a primary cavity 201. The secondary locking mechanism 30 is mounted on the bracket body 10 and spaced apart from the primary locking mechanism 20, and also has a secondary cavity 301. When the battery pack is in the locked state, the primary locking element 3 is locked within the primary cavity 201 by the primary mechanism, and the secondary locking element 4 is limited within the secondary cavity 301. During the process of the battery pack switching from the locked state to the unlocked state, the secondary locking mechanism 30 releases its limitation on the secondary locking element 4 before the primary locking mechanism 20 releases its lock on the primary locking element 3. During the process of the battery pack switching from the unlocked state to the locked state, the limitation of the secondary locking mechanism 30 on the secondary locking element 4 and the locking of the primary locking mechanism 20 on the primary locking element 3 are performed synchronously.

[0091] In this embodiment, the secondary locking mechanism 30 does not lock the secondary locking element 4, but only limits its position. When the primary locking mechanism 20 fails, the secondary locking mechanism 30 protects and supports the battery pack, preventing it from falling off and improving the locking reliability of the latch during use, thus providing excellent protection for the battery pack. When switching the battery pack from the locked state to the unlocked state, the secondary locking mechanism 30 first releases the limit on the secondary locking element 4 under the action of the unlocking mechanism, followed by the primary locking mechanism 20 releasing the lock on the primary locking element 3. The secondary locking mechanism 30 does not affect the unlocking operation of the primary locking mechanism 20, ensuring smooth and reliable unlocking. Furthermore, during the switch from the unlocked state to the locked state, the locking of the primary locking mechanism 20 on the primary locking element 3 and the limiting of the secondary locking mechanism 30 on the secondary locking element 4 are synchronized, facilitating operation and improving the installation efficiency and reliability of the battery pack.

[0092] In a preferred embodiment, such as Figure 1-6As shown, the primary locking mechanism 20 includes a primary locking link 202, a primary locking base 203, and a primary locking tongue 204. The primary locking base 203 is mounted on the bracket body 10 and has a primary opening 205 and a primary cavity 201 extending from the primary opening 205. The primary opening 205 is used to allow the primary locking member 3 to enter the primary cavity 201. The primary locking link 202 is used to drive the primary locking tongue 204 to move relative to the primary locking base 203 under the action of external force, so that the primary locking tongue 204 changes between the locked state and the unlocked state relative to the primary locking base 203. The secondary locking mechanism 30 includes a secondary locking link 302, a secondary locking base 303, and a secondary locking tongue 304. The secondary locking base 303 is mounted on the bracket body 10 and has a secondary opening 305 and a secondary cavity 301 extending from the secondary opening 305. The secondary opening 305 allows the secondary locking member 4 to enter the secondary cavity 301. The secondary locking link 302 is used to drive the secondary locking tongue 304 to move relative to the secondary locking base 303 under the action of external force, so that the secondary locking tongue 304 changes between a locked state and an unlocked state relative to the secondary locking base 303. When the battery pack is in the locked state, the primary locking member 3 is located in the primary cavity 201 and abuts against the primary locking tongue 204. The secondary locking member 4 is located in the secondary cavity 301 and forms a gap with the secondary locking tongue 304. The gap is configured to restrict the secondary locking member 4 from leaving the secondary cavity 301.

[0093] The aforementioned gap design ensures that the secondary locking tongue 304 does not lock the secondary locking member 4, but only limits its movement. When the battery pack needs to be switched from the locked state to the unlocked state, under the action of the unlocking mechanism, if the unlocking push rod acts on both the primary locking link 202 and the secondary locking link 302 simultaneously, the unlocking push rod can directly lift the locking link, thereby releasing the limitation on the secondary locking member 4. However, since the primary locking member 3 abuts against the primary locking tongue 204, the unlocking push rod cannot directly lift the primary locking link 202. It needs to be driven by the battery swapping equipment to move the battery pack away from the primary locking tongue 204, so that a certain gap is formed between the primary locking member 3 and the primary locking tongue 204. The moment this gap is reached, the unlocking push rod can lift the primary locking link 202. Meanwhile, the secondary locking tongue 304 and the secondary locking element 4 have a gap and do not contact each other, which makes it difficult for the secondary locking tongue 304 to be damaged by the secondary locking element 4 during use. The secondary locking tongue 304 is not easily subjected to impact and friction, which ensures the stability and reliability of the secondary locking mechanism 30 and greatly improves the safety and stability of electric vehicles.

[0094] In a preferred embodiment, the gap is not less than 2 mm and not greater than the radius of the secondary locking member 4. Setting the gap within this range allows for convenient and timely release of the secondary locking member 4 when needed, while preventing the secondary locking member 4 from sliding out of the secondary cavity 301 when it needs to be locked. This ensures the secondary locking member 4 is reliably locked within the secondary cavity 301, guaranteeing stable and reliable locking of the secondary locking member 4.

[0095] In a preferred embodiment, the secondary locking mechanism 30 further includes a connecting seat 306, which is mounted on the bracket body 10 and spaced apart from the secondary lock base 303. The secondary locking link 302 has a first end and a second end along its length. The first end of the secondary locking link 302 is connected to the secondary locking tongue 304, and the second end of the secondary locking link 302 is connected to the connecting seat 306. The connecting seat 306 is configured to allow the first end of the secondary locking link 302 to rotate relative to the secondary lock base 303.

[0096] In this embodiment, the connecting seat 306 can connect the second end of the secondary locking rod 302 to the bracket body 10, and at the same time assist in realizing the rotation of the secondary locking rod 302 relative to the secondary locking base 303, so as to limit or release the secondary locking member 4.

[0097] In a preferred embodiment, the connecting seat 306 and the secondary lock base 303 have the same structure. This identical structure ensures effective support and positioning of the battery pack, expands the applicability of the secondary lock base 303, and helps save costs.

[0098] In a preferred embodiment, the secondary locking mechanism 30 further includes a connecting bolt 307, which is connected to the connecting seat 306, and the second end of the secondary locking link 302 is connected to the connecting bolt 307.

[0099] The structure of the connecting bolt 307 is the same as that of the secondary bolt 304.

[0100] It should be noted that, in this embodiment, as Figure 1-6 As shown, in the primary locking mechanism 20, the primary locking link 202 is connected to three primary locking bases 203; in the secondary locking mechanism 30, the secondary locking link 302 is connected to one secondary locking base 303 and one connecting seat 306. The connecting seat 306 and the connecting bolt 307 preferably have the same structure as the secondary locking base 303 and the connecting bolt 307, respectively.

[0101] In this embodiment, the above-described structural configuration ensures that the structures at both ends of the secondary locking linkage 302 are identical, which helps to further guarantee the support and limiting effect on the battery pack, and also helps to ensure the locking synchronization of the primary locking mechanism 20 and the secondary locking mechanism 30.

[0102] In other alternative embodiments, the connecting seat 306 can be configured with any structure that is suitable for this purpose, as long as it ensures that the secondary locking link 302 can reliably drive the secondary locking tongue 304 to rotate relative to the secondary locking base 303.

[0103] It should also be noted that the structural components connected to the secondary locking linkage 302 of the secondary locking mechanism 30 may include two or more secondary lock bases 303 and / or two or more connecting seats 306, without specific limitations. Here, setting the number of each of the secondary lock base 303 and connecting seat 306 to one reduces costs while achieving reliable limiting of the battery pack.

[0104] Similarly, Figure 1-6 As shown, in a preferred embodiment, the primary locking link 202 has an outwardly protruding primary unlocking part 206 on the side facing the primary locking base 203, and the secondary locking link 302 has an outwardly protruding secondary unlocking part 308 on the side facing the secondary locking base 303. The primary unlocking part 206 and the secondary unlocking part 308 are respectively used for the unlocking mechanism to abut against each other to drive the corresponding primary locking link 202 and secondary locking link 302 to move, and drive the corresponding primary locking tongue 204 and secondary locking tongue 304 to open. In this embodiment, the above-mentioned structural arrangement makes unlocking convenient and helps to improve the unlocking efficiency of the battery pack.

[0105] Furthermore, it should be noted that the quick-change bracket 1 with a primary locking mechanism 20 and a secondary locking mechanism 30 in the above embodiments can be implemented independently in practical applications, and the above embodiments do not impose specific limitations.

[0106] In the preferred embodiment, the same applies. Figure 6 As shown, one end of the primary lock base 203, the secondary lock base 303, and the connecting seat 306 is connected to the bracket body 10, and the other end extends to the bottom of the bracket body 10. The primary lock base 203 has a primary opening 205 below it. The primary opening 205 and the primary cavity 201 penetrate the primary lock base 203 along the axial direction of the primary locking member 3. The secondary lock base 303 and the connecting seat 306 have a secondary opening 305 below them. The secondary opening 305 and the secondary cavity 301 penetrate the secondary lock base 303 along the axial direction of the secondary locking member 4.

[0107] In this embodiment, the battery pack is fixed to the electric vehicle by the bracket body 10. The primary opening 205 and the secondary opening 305 are located at the bottom. The battery pack enters the corresponding cavity through the lower opening, thereby locking the battery pack in the cavity. This prevents the battery pack from entering the cavity from the side and prevents the locking member from sliding out from one side of the cavity, thus improving the safety of battery pack locking.

[0108] In this embodiment, for ease of disassembly and maintenance, the primary lock base 203, the secondary lock base 303, and the connecting seat 306 are detachably connected to the bracket body 10. It should be noted that in other alternative embodiments, to improve installation strength and stability, the primary lock base 203, the secondary lock base 303, and the connecting seat 306 can be integrally formed with the bracket body 10. Alternatively, a portion of the primary lock base 203, the secondary lock base 303, and the connecting seat 306 can be integrally formed with the bracket body 10; this embodiment does not impose specific limitations. To achieve reliable support for the battery pack, and to further reliably install the battery pack onto the bracket body 10, such as... Figure 1-4 and Figure 10 As shown, the quick-change bracket 1 also includes a support base 40, which is disposed on the bracket body 10 and spaced apart from the primary locking mechanism 20 and the secondary locking mechanism 30. Specifically, the support base 40 has a support opening 401 and a support cavity 402 extending from the support opening 401. The support opening 401 is used for the tertiary locking member installed on the battery pack to enter the support cavity 402 to support the tertiary locking member.

[0109] Similar to the aforementioned primary lock base 203, secondary lock base 303, and connecting base 306, in a preferred embodiment, one end of the support base 40 is connected to the bracket body 10, and the other end extends to the lower part of the bracket body 10. A support opening 401 is provided at the lower part of the support base 40. The support opening 401 and the support cavity 402 penetrate the support base 40 along the axial direction of the tertiary locking member.

[0110] Accordingly, in this embodiment, the support base 40 is mounted on the bracket body 10 via a connecting structure. In other alternative embodiments, the support base 40 is integrally formed with the bracket body 10. Here, the battery pack is fixed to the electric vehicle via the bracket body 10, and the support opening 401 is located at the bottom. The battery pack enters the corresponding cavity through the support opening 401 at the bottom, thereby supporting the battery pack by supporting the three-stage locking member within the support cavity 402. This prevents the battery pack from entering the support cavity 402 from the side and prevents the three-stage locking member from sliding out from one side of the support cavity 402, ensuring stable support for the battery pack and further improving the safety of battery pack locking.

[0111] More preferably, the primary lock base 203, the secondary lock base 303, the connecting seat 306, and the support seat 40 all adopt the same structure, which can improve the applicability of the lock base and help save costs.

[0112] Furthermore, it should be noted that the primary locking element 3, the secondary locking element 4, and the tertiary locking element are all locking shafts connected to the battery pack. Since each locking shaft is usually at the same height relative to the battery pack, the primary locking base 203, the secondary locking base 303, the connecting seat 306, and the support seat 40 are preferably also at the same height relative to the bracket body 10.

[0113] Furthermore, it should be noted that the primary locking mechanism 20, the secondary locking mechanism 30, and the support base 40 in the above embodiments can all be implemented independently in practical applications, and the above embodiments do not impose specific limitations.

[0114] In a preferred embodiment, such as Figure 1-3 As shown, the quick-change bracket 1 also includes a baffle assembly, which includes at least a baffle 50. The baffle 50 is connected to at least one end of the bracket body 10 in the length direction of the electric vehicle. One end of the baffle 50 is connected to the bracket body 10, and the other end of the baffle 50 extends outward from the bracket body 10.

[0115] The quick-change bracket 1 has a baffle 50 at at least one end of the bracket body 10 along the length of the electric vehicle. This prevents mud and water from the wheels of the electric vehicle from splashing onto the battery pack mounted on the quick-change bracket 1 behind the baffle 50, thus effectively solving the problem of the battery pack being disturbed by foreign objects. This effectively protects the battery pack and helps improve the locking stability between the battery pack and the quick-change bracket 1.

[0116] It should be noted that in this embodiment... Figure 1 , Figure 3-4 Only the end near the front of the vehicle is shown with a baffle 50.

[0117] Furthermore, the baffle 50 is tilted in the outward direction toward either the front or rear of the electric vehicle. Setting the baffle 50 to tilt backward reduces wind resistance and helps foreign objects falling on it to slide off quickly, preventing them from accumulating on the baffle 50.

[0118] It should be noted that the quick-change bracket 1 with baffle assembly in this embodiment can be implemented independently in actual applications, and this embodiment does not impose any specific limitations.

[0119] In a preferred embodiment, such as Figure 1-3As shown, the bracket body 10 has a first positioning hole 60 on the side near the front of the electric vehicle and a second positioning hole 70 on the side near the rear of the electric vehicle. The first positioning hole 60 and the second positioning hole 70 are used for the positioning pins on the battery swapping equipment to be inserted from bottom to top.

[0120] In this embodiment, by providing a first positioning hole 60 and a second positioning hole 70 on the bracket body 10 to cooperate with the positioning pin on the battery swapping device, the positioning alignment and relative fixation of the battery swapping device and the bracket body 10 can be achieved, so that the battery swapping device will not be displaced relative to the bracket body 10 during battery swapping, thus ensuring the smooth installation and removal of the battery pack on the quick-change bracket 1.

[0121] In a preferred embodiment, one of the first positioning hole 60 and the second positioning hole 70 is a round hole, and the other is an oblong hole. In this embodiment, the front and rear positioning holes of the bracket body 10 are a round hole and an oblong hole, respectively. The oblong hole facilitates quick alignment of the positioning pin with the positioning hole, which helps to improve alignment efficiency and avoids over-positioning between the battery swapping equipment and the quick-change bracket 1 for electric vehicles. The round hole can fix the positioning pin relatively after it is inserted, avoiding displacement deviation and ensuring positioning alignment accuracy.

[0122] In a preferred embodiment, the bracket body 10 includes a crossbeam 102, a longitudinal beam 101, and a column 103. The longitudinal beam 101 extends along the length of the electric vehicle and is fixed to the beam 2 of the electric vehicle. The crossbeam 102 is connected to the longitudinal beam 101 through the column 103. The longitudinal beam 101, the column 103, and the crossbeam 102 are connected in sequence to form a rectangular frame. The column 103 is provided with a corresponding first positioning hole 60 or a second positioning hole 70.

[0123] The primary locking mechanism 20 and the secondary locking mechanism 30 are mounted on the longitudinal beam 101.

[0124] In this embodiment, by setting the first positioning hole 60 and the second positioning hole 70 on the corresponding column 103, interference between the positioning pin and the components on the crossbeam 102 and the longitudinal beam 101 can be avoided after the positioning pin is inserted.

[0125] In a preferred embodiment, the lower surface of the pillar 103 at the end near the rear of the electric vehicle is higher in the height direction than the lower surface of the pillar 103 at the end near the front of the electric vehicle.

[0126] In this embodiment, by adopting the above-described structural configuration, when the column 103 at the front end of the electric vehicle is longer, the column 103 at the rear end of the electric vehicle is shortened. This ensures that the battery swapping equipment and the bracket body 10 are stably positioned, while preventing the battery pack on the battery swapping equipment from interfering with the column 103 when it is installed into the quick-change bracket 1.

[0127] Specifically, such as Figure 1-3 As shown, in this embodiment, the positioning hole on the pillar 103 located near the front end of the electric vehicle is a first positioning hole 60, which is an oblong hole, and the positioning hole on the pillar 103 located near the rear end of the electric vehicle is a second positioning hole 70, which is a round hole. In other alternative embodiments, the positioning hole on the pillar 103 located near the front end of the electric vehicle may also be a round hole, and the positioning hole on the pillar 103 located near the rear end of the electric vehicle may be an oblong hole. This embodiment is not intended to be a specific limitation.

[0128] It should be noted that the quick-change bracket 1 with positioning holes and the quick-change bracket 1 with a height difference between the front and rear columns in this embodiment can both be implemented independently in actual applications, and this embodiment does not impose any specific limitations.

[0129] In a preferred embodiment, such as Figure 1-4 , Figure 8 and Figure 9 As shown, the quick-change bracket 1 also includes an adapter 80, which includes a base 801 and a protrusion 802 disposed on the base 801. One of the base 801 and the protrusion 802 is connected to the bracket body 10, and the other is connected to the vehicle beam 2 of the electric vehicle. By selecting adapters 80 with different protrusion heights 802, the same quick-change bracket 1 can be assembled with electric vehicles of different models, avoiding the need to design a different quick-change bracket 1 for each model and improving the versatility of the quick-change bracket 1.

[0130] In a preferred embodiment, the adapter 80 forms a relief groove 803 on the opposite side of the protrusion 802. The relief groove 803 is recessed toward the protrusion direction of the protrusion 802, and a mounting hole penetrating to the surface of the protrusion 802 is provided in the relief groove 803.

[0131] Here, a protrusion 802 and a clearance groove 803 are provided in the adapter 80 to provide space for the bolt head, allowing the bolt head 804 to be accommodated in the clearance groove 803 and avoiding interference with the vehicle beam 2. For example, Figure 8-9 As shown, there are two bolt heads 804 located in the clearance groove 803.

[0132] It should be noted that, Figure 1 , Figure 3-4 As shown, the quick-change bracket 1 in this embodiment is provided with six adapters 80, with three adapters 80 on each side of the quick-change bracket 1, and the adapters on both sides are arranged opposite to each other. The protrusion 802 is connected to the bracket body 10, and the base 801 is used to connect to the beam 2 of the electric vehicle.

[0133] It should be noted that the quick-change bracket 1 with adapter 80 in this embodiment can be implemented independently in actual applications, and this embodiment does not impose any specific limitations.

[0134] In a preferred embodiment, such as Figure 1-4 and Figure 7 As shown, the quick-change bracket 1 also includes a visual recognition component 90, which includes a mounting frame 901 and a mounting plate 902. The first end of the mounting frame 901 is connected to the bracket body 10, and the second end extends to the outside of the bracket body 10. The mounting plate 902 is connected to the end of the mounting frame 901 extending to the outside of the bracket body 10. The mounting plate 902 is provided with visual recognition points that can be recognized by a visual device. By setting the visual recognition component 90, the parking positioning of electric vehicles can be achieved. This improves the positioning alignment accuracy between the battery swapping equipment and the electric vehicle, thus increasing the battery swapping success rate. The mounting plate 902 is securely mounted on the longitudinal beam 101 by the mounting frame 901, ensuring that the mounting plate 902 does not shift during the recognition process by the visual device on the battery swapping equipment, thereby ensuring the positioning accuracy of the battery swapping equipment. The visual recognition points make the mounting plate 902 easier for the visual device to recognize.

[0135] In a preferred embodiment, the longitudinal beam 101 of the bracket body 10 includes a top plate 1011, a side plate 1012, and a bottom plate 1013 connected in sequence. The side plate 1012 is fixedly connected to the vehicle beam 2. The top plate 1011 and the bottom plate 1013 extend outward from both sides of the side plate 1012 along the axial direction of the primary locking member 3 and the secondary locking member 4, respectively. The primary locking mechanism 20 and the secondary locking mechanism 30 are disposed on the bottom plate 1013. The first end of the mounting bracket 901 is attached to and detachably connected to the side of the top plate 1011 facing the bottom plate 1013.

[0136] In this embodiment, the first end of the mounting bracket 901 is connected between the top plate 1011 and the bottom plate 1013, without occupying the space at the top of the top plate 1011, and without interfering with the external structure set at the top of the top plate 1011. At the same time, it can also protect the mounting bracket 901.

[0137] In a preferred embodiment, the bracket body 10 further includes a plurality of reinforcing ribs 104, which are engaged between the top plate 1011 and the bottom plate 1013. The side of the reinforcing rib 104 facing the side plate 1012 is connected to the side plate 1012. The mounting frame 901 includes two opposing side connecting plates 903 and a connecting horizontal plate 904 connecting between the two side connecting plates 903. The connecting horizontal plate 904 is located at the first end of the mounting frame 901 and forms a recess 905 with the side connecting portions on both sides. The recess 905 is used to accommodate the reinforcing ribs 104. The end of the side connecting plate 903 is attached to and detachably connected to the side of the top plate 1011 facing the bottom plate 1013. In a further preferred embodiment, the connecting horizontal plate 904 is attached to and detachably connected to the side of the reinforcing rib 104 away from the side plate 1012.

[0138] The connecting horizontal plate 904 connects the two side connecting plates 903, linking the two isolated side connecting plates 903 into a single structure, facilitating the connection between the mounting bracket 901 and the longitudinal beam 101. Furthermore, the recessed portion 905 avoids the reinforcing rib plate 104, allowing for convenient connection between the mounting bracket 901 and the longitudinal beam 101 without affecting the reinforcement effect of the longitudinal beam 101. Additionally, connecting the connecting horizontal plate 904 to the reinforcing rib plate 104 increases the number of connection points between the mounting bracket 901 and the longitudinal beam 101, improving the reliability of the connection and thus ensuring the reliability of the visual recognition component 90.

[0139] In a preferred embodiment, the mounting bracket 901 further includes a central connecting plate 906 connected between the two side connecting plates 903. The central connecting plate 906 is connected to the bottom of the side connecting plates 903, and its two ends are respectively connected to the connecting cross plate 904 and the mounting plate 902. The central connecting plate 906, connected between the side connecting plates 903, improves the stability of the mounting bracket 901 and ensures its strength, thereby contributing to the reliability of the visual recognition component 90.

[0140] In a preferred embodiment, the side connecting plate 903 has an L-shaped structure and includes a horizontal connecting portion 9031 and a vertical connecting portion 9032 connected end to end. The two ends of the connecting plate 904 are connected between the vertical connecting portions 9032 of the two side connecting plates 903.

[0141] In a preferred embodiment, such as Figure 1-3 and Figure 7 As shown, in order to reduce the weight of the mounting bracket 901 and thus the overall weight of the quick-change bracket 1, a plurality of weight-reducing holes 907 are provided at intervals on the side connecting plate 903 and / or the middle connecting plate 906. Specifically, the plurality of weight-reducing holes 907 are provided on the horizontal connecting portion 9031 and the middle connecting plate 906.

[0142] In a preferred embodiment, a bent portion 9033 is formed on the side of the horizontal connecting portion 9031 opposite to the vertical connecting portion 9032. The bent portion 9033 is disposed opposite to the vertical connecting portion 9032 and extends from the horizontal connecting portion 9031 toward the base plate 1013. The bent portion 9033 can strengthen the side connecting plate 903, which helps to improve the overall strength of the mounting bracket 901, thereby helping to ensure the reliability of the visual recognition component 90.

[0143] The parking and positioning of electric vehicles can be achieved by setting up a visual recognition component 90. A visual device is installed on the outer wall of the battery swapping station's outer compartment, and preset battery swapping positions are set on the station's driving lane. Electric vehicles and battery swapping equipment perform battery swapping operations at these preset positions. For ease of parking, electric vehicles can be parked within the preset parking area for battery swapping. The visual device obtains the electric vehicle's position by recognizing the visual recognition component 90, thus easily determining whether the electric vehicle is parked within the preset parking area. If the electric vehicle is parked within the preset parking area, battery swapping can proceed. If the electric vehicle is not parked within the preset parking area, the position of the electric vehicle or the parking position of the battery swapping equipment can be adjusted to align them for battery swapping. Using the visual recognition component 90 to achieve electric vehicle parking and positioning improves the positioning and alignment accuracy of the battery swapping equipment and the electric vehicle, contributing to a higher battery swapping success rate. The mounting plate 902 is securely mounted on the longitudinal beam 101 by the mounting bracket 901, ensuring that the mounting plate 902 does not shift during the process of being recognized by the vision device on the power swapping equipment, thereby ensuring the positioning accuracy of the power swapping equipment. The visual recognition point makes the mounting plate 902 easier to be recognized by the vision device.

[0144] The visual recognition component 90 also includes a fixing plate and an identification label. The fixing plate is connected to the mounting plate 902 and has a through hole. The identification label has a reflective coating that can be recognized by the visual device. The identification label is pasted on the mounting plate 902 and the identification label is positioned corresponding to the through hole to form a visual recognition point at the through hole.

[0145] The installation stability of the identification label is improved by setting a fixing plate. The fixing plate is used to press down the edge of the identification label to prevent it from falling off. Through holes are made in the fixing plate to expose the identification label so that it can be recognized by vision devices. The identification label has a reflective coating that can be recognized by vision devices, making it easy for them to identify.

[0146] The visual recognition component 90 is electrically connected to the control unit of the battery swapping station. The control unit stores a reference image. The visual recognition component 90 transmits the recognized real-time image to the control unit. The control unit compares the reference image with the real-time image. If the error rate is within a predetermined range, the electric vehicle is parked within the preset parking range. The control unit sends a battery swapping command, and the battery swapping station begins the regular battery swapping process. If the comparison result shows that the error rate exceeds the predetermined range, the electric vehicle is not parked within the preset parking range. The control unit issues an adjustment command to adjust the position of the electric vehicle or the parking position of the battery swapping equipment to align them before proceeding with the battery swapping operation.

[0147] It should be noted that the visual recognition component 90 and the quick-change bracket 1 with the visual recognition component 90 in this embodiment can both be implemented independently in actual applications, and this embodiment does not impose any specific limitations.

[0148] It should be further noted that the "detachable connection" mentioned in this embodiment can all be achieved by fasteners such as bolts or rivets.

[0149]

Example 2

[0150] The quick-change bracket 1 in this embodiment is largely the same as the quick-change bracket 1 in embodiment 1, except that:

[0151] The quick-change bracket 1 also includes a protective plate (not shown in the figure), which is connected to at least one end of the bracket body 10 in the width direction of the electric vehicle. In this embodiment, the same reference numerals as in Embodiment 1 refer to the same elements.

[0152] Specifically, the guard plate is located above the locking mechanism. By setting the guard plate, the corresponding locking mechanism (first-level locking mechanism 20 and / or second-level locking mechanism 30) can be blocked, thereby preventing foreign objects from entering the locking mechanism, effectively protecting the locking mechanism on the bracket body 10, and improving locking stability.

[0153] One end of the guard plate is connected to the support body 10, and the guard plate extends outward toward the support body 10 and gradually slopes downward in the extending direction. The downward slope of the guard plate can cause foreign objects falling onto the baffle 50 to slide off quickly, effectively preventing debris from accumulating on the upper surface of the guard plate.

[0154] In other embodiments, the guard plate may extend horizontally instead of tilting. The guard plate may extend to cover the entire longitudinal beam 101 of the quick-change bracket 1, or it may only cover a portion of the longitudinal beam 101.

[0155] The guard plate can cover the locking mechanism, improving the stability of the lock. The tilt of the guard plate can prevent debris from accumulating on the upper surface of the guard plate.

[0156] In a preferred embodiment, the lower edge of the guard plate is not lower than the lower surface of the locking mechanism or the lower surface of the longitudinal beam 101 of the quick-change bracket 1.

[0157] Specifically, to prevent the tilted guard plates from interfering with the battery pack's entry and exit from the bottom of the electric vehicle and its engagement with the locking mechanism, when the distance between the outer edges of the two guard plates on both sides is less than the width of the battery pack, the lower edge of the guard plate is not lower than the lower surface of the longitudinal beam 101 of the quick-change bracket 1. This prevents the guard plates from interfering with the battery pack's entry and exit from the bottom of the electric vehicle and its engagement with the locking mechanism. When the distance between the outer edges of the two guard plates on both sides is greater than the width of the battery pack, the lower edge of the guard plate is not lower than the lower surface of the locking mechanism. This also prevents the guard plates from interfering with the battery pack's entry and exit from the bottom of the electric vehicle and its engagement with the locking mechanism.

[0158] Furthermore, it should be noted that the quick-change bracket 1 in this embodiment can be implemented independently in practical applications, and this embodiment does not impose any specific limitations.

[0159] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A quick-change bracket for an electric vehicle for fixing to a vehicle beam of an electric vehicle and for mounting a battery pack, characterized by The quick-change support comprises: a support body fixed to the vehicle beam; a primary locking mechanism arranged on the support body, the primary locking mechanism having a primary cavity; a secondary locking mechanism arranged on the support body and spaced apart from the primary locking mechanism, the secondary locking mechanism having a secondary cavity; wherein, when the battery pack is in a locked state, a primary locking piece is locked in the primary cavity by the primary locking mechanism, and a secondary locking piece is limited in the secondary cavity; when the battery pack switches from the locked state to an unlocked state, the secondary locking mechanism releases the limitation on the secondary locking piece before the primary locking mechanism releases the locking on the primary locking piece; when the battery pack switches from the unlocked state to the locked state, the limitation of the secondary locking mechanism on the secondary locking piece and the locking of the primary locking mechanism on the primary locking piece are performed synchronously.

2. The quick-swap bracket for electric vehicles of claim 1, wherein, The primary locking mechanism comprises a primary lock connecting rod, a primary lock base and a primary lock tongue, the primary lock base is installed on the support body and is provided with a primary opening and the primary cavity extending from the primary opening, the primary opening is used for allowing the primary locking piece to enter the primary cavity, and the primary lock connecting rod is used for driving the primary lock tongue to move relative to the primary lock base under the action of an external force, so that the primary lock tongue changes relative to the primary lock base between a locked state and an unlocked state; The secondary locking mechanism comprises a secondary lock connecting rod, a secondary lock base and a secondary lock tongue, the secondary lock base is installed on the support body and is provided with a secondary opening and the secondary cavity extending from the secondary opening, the secondary opening is used for allowing the secondary locking piece to enter the secondary cavity, and the secondary lock connecting rod is used for driving the secondary lock tongue to move relative to the secondary lock base under the action of an external force, so that the secondary lock tongue changes relative to the secondary lock base between a locked state and an unlocked state; wherein, when the battery pack is in a locked state, the primary locking piece is located in the primary cavity and abuts against the primary lock tongue, and the secondary locking piece is located in the secondary cavity and has a gap with the secondary lock tongue, the gap is configured to limit the secondary locking piece from leaving the secondary cavity.

3. The quick-swap bracket for electric vehicles of claim 2, wherein, The gap is not less than 2mm and not more than the radius of the secondary locking piece.

4. The quick-swap bracket for electric vehicles of claim 2, wherein, The secondary locking mechanism further comprises a connecting seat, the connecting seat is installed on the support body and is spaced apart from the secondary lock base, the secondary lock connecting rod has a first end and a second end in the length direction, the first end of the secondary lock connecting rod is connected to the secondary lock tongue, and the second end of the secondary lock connecting rod is connected to the connecting seat, the connecting seat is configured to allow the first end of the secondary lock connecting rod to rotate relative to the secondary lock base.

5. The quick-swap bracket for electric vehicles of claim 4, wherein, The connecting seat has the same structure as the secondary lock base.

6. The quick-swap bracket for electric vehicles of claim 5, wherein, The secondary locking mechanism further comprises a connecting lock tongue, the connecting lock tongue is connected to the connecting seat, and the second end of the secondary lock connecting rod is connected to the connecting lock tongue; wherein, the structure of the connecting lock tongue is the same as that of the secondary lock tongue.

7. The quick change mount for electric vehicles of any of claims 2-6, wherein, The first level lock connecting rod has a first level unlocking part outwardly extending from one side of the first level lock base, and the second level lock connecting rod has a second level unlocking part outwardly extending from one side of the second level lock base, and the first level unlocking part and the second level unlocking part are respectively used for the unlocking mechanism to abut against to drive the corresponding first level lock connecting rod and second level lock connecting rod to move and drive the corresponding first level lock tongue and second level lock tongue to open.

8. The quick-swap mount for an electric vehicle of any of claims 4-6, wherein, One end of the first level lock base, the second level lock base and the connecting seat is connected to the support body, and the other end extends below the support body, the first level lock base is provided with the first level opening below, the first level opening and the first level cavity penetrate the first level lock base along the axis direction of the first level locking part, the second level lock base and the connecting seat are provided with a second level opening below, the second level opening and the second level cavity penetrate the second level lock base along the axis direction of the second level locking part.

9. The quick-swap bracket for electric vehicles of claim 1, wherein, The quick-change support further comprises a support seat, which is arranged on the support body and is arranged separately from the first level locking mechanism and the second level locking mechanism. The support seat has a support opening and a support cavity extending from the support opening, and the support opening is used for the third level locking part installed on the battery pack to enter the support cavity to support the third level locking part.

10. The quick-swap bracket for electric vehicles of claim 9, wherein, One end of the support seat is connected to the support body, and the other end extends below the support body, and the support seat is provided with the support opening below, and the support opening and the support cavity penetrate the support seat along the axis direction of the third level locking part.

11. The quick-swap bracket for electric vehicles of claim 1, wherein, The quick-change support further comprises a baffle assembly, which at least comprises a baffle, one end of the baffle is connected to at least one end of the support body in the length direction of the electric vehicle, and the other end of the baffle extends outward of the support body.

12. The quick-swap bracket for electric vehicles of claim 1, wherein, The quick-change support further comprises a guard plate, which is connected to at least one end of the support body in the width direction of the electric vehicle.

13. The quick-swap bracket for electric vehicles of claim 1, wherein, The support body is provided with a first positioning hole on one side close to the front of the electric vehicle, and is provided with a second positioning hole on one side close to the rear of the electric vehicle, and the first positioning hole and the second positioning hole are used for the positioning pin on the battery replacement equipment to be inserted from bottom to top.

14. The quick-swap bracket for electric vehicles of claim 13, wherein, The support body comprises a cross beam, a longitudinal beam and a column, the longitudinal beam extends in the length direction of the electric vehicle, the longitudinal beam is fixed to the vehicle beam of the electric vehicle, the cross beam is connected to the longitudinal beam through the column, and the longitudinal beam, the column and the cross beam are sequentially connected to form a rectangular frame, and the column is provided with the corresponding first positioning hole or second positioning hole. The first level locking mechanism and the second level locking mechanism are arranged on the longitudinal beam.

15. The quick-swap bracket for electric vehicles of claim 14, wherein, The lower surface of the column close to the rear of the electric vehicle is higher than the lower surface of the column close to the front of the electric vehicle in the height direction.

16. The quick-swap bracket for electric vehicles of claim 1, wherein, The quick-change bracket further comprises an adapter, the adapter comprising a base and a protrusion arranged on the base, one of the base and the protrusion being connected with the bracket body, and the other being connected with the beam of the electric vehicle.

17. The quick-swap bracket for electric vehicles of claim 1, wherein, The quick-change bracket further comprises a visual identification assembly, the visual identification assembly comprising a mounting frame and a mounting plate, the first end of the mounting frame being connected with the bracket body, and the second end extending to the outside of the bracket body, the mounting plate being connected to the end of the mounting frame extending to the outside of the bracket body, and the mounting plate being provided with a visual identification point capable of being identified by a visual device.

18. The quick-swap bracket for electric vehicles of claim 17, wherein, The bracket body comprises at least a longitudinal beam extending along the length direction of the electric vehicle, and the longitudinal beam is fixed to the beam. The longitudinal beam comprises a top plate, a side plate and a bottom plate connected in sequence, the side plate is fixedly connected with the beam, the top plate and the bottom plate extend outwardly from both sides of the side plate along the axis direction of the primary locking member and the axis direction of the secondary locking member respectively, the axis direction of the primary locking member is the same as the axis direction of the secondary locking member, and the primary locking mechanism and the secondary locking mechanism are arranged on the bottom plate. The first end of the mounting frame is attached to and detachably connected to one side of the top plate facing the bottom plate.

19. The quick-swap bracket for electric vehicles of claim 18, wherein, The bracket body further comprises a plurality of reinforcing rib plates, the reinforcing rib plates are clamped between the top plate and the bottom plate, and one side of the reinforcing rib plates facing the side plate is connected with the side plate. The mounting frame comprises two side connecting plates arranged oppositely and a connecting horizontal plate connected between the two side connecting plates, the connecting horizontal plate is located at the first end of the mounting frame and surrounds a recess with the two side connecting plates, the recess is used for accommodating the reinforcing rib plate, and the end of the side connecting plate is attached to and detachably connected to one side of the top plate facing the bottom plate. And / or, The connecting horizontal plate is attached to and detachably connected to one side of the reinforcing rib plate away from the side plate.

20. The quick-swap bracket for electric vehicles of claim 19, wherein, The mounting frame further comprises a middle connecting plate connected between the two side connecting plates, the middle connecting plate is connected to the bottom of the side connecting plate, and the two ends of the middle connecting plate are connected to the connecting horizontal plate and the mounting plate respectively.

21. The quick-change bracket for electric vehicles according to claim 20, wherein The side connecting plate is in L-shaped structure and comprises a horizontal connecting portion and a vertical connecting portion connected in sequence, and the two ends of the connecting horizontal plate are connected between the vertical connecting portions of the two side connecting plates. And / or, A plurality of weight-reducing holes are arranged at intervals on the side connecting plate and / or the middle connecting plate.

22. The quick-swap bracket for electric vehicles of claim 21, wherein, The side away from the vertical connecting portion of the horizontal connecting portion is further formed with a bending portion, the bending portion is arranged opposite to the vertical connecting portion and extends from the horizontal connecting portion toward the direction close to the bottom plate.

23. An electric vehicle characterized by comprising: It comprises a battery pack and the quick-change bracket for electric vehicles according to any one of claims 1-22, and the battery pack is mounted on the bracket body.

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