Quick-change support for lateral sliding-in of battery pack and electric vehicle

Abstract

The invention relates to the technical field of electric vehicles, and discloses a quick-change support for lateral sliding-in of a battery pack and the electric vehicle, the battery pack is in sliding connection with the quick-change support, the quick-change support comprises a locking groove, an avoiding groove and a locking mechanism, the locking groove is used for allowing a locking piece on the battery pack to move to a locking position, and the avoiding groove is used for avoiding the locking piece on the battery pack to move to a locking position. The locking mechanism is at least partially connected into the avoiding groove, the avoiding groove is provided with a first position and a second position for stopping of the locking mechanism, when the locking mechanism is located at the first position, the locking mechanism locks and limits the locking piece located at the locking position, and when the locking mechanism is located at the second position, the locking piece is locked and limited by the locking mechanism. The locking mechanism avoids the locking piece so that the locking piece can slide out of the locking groove, and the locking mechanism slides between the first position and the second position along the avoiding groove. The method has the effect of relieving the problems that in the prior art, station end locking and unlocking are complex in operation and low in efficiency.

Description

Technical Field

[0001] The present application relates to the field of electric vehicles, and in particular to a quick-change bracket for lateral sliding of a battery pack. Background Art

[0002] Electric vehicles have the advantages of zero emissions, low noise, high cost-effectiveness in operation and maintenance, and are becoming more and more popular among users. With the emphasis on environmental protection, pure electric heavy trucks have been promoted in the market for many years as new energy vehicle products under the promotion of the government, representing the future development direction of the automotive industry.

[0003] Due to the characteristics of electric heavy-duty trucks, the battery packs they use are much larger than those used in household electric vehicles. The charging time of the battery packs is too long. Even the so-called fast charging requires nearly half an hour. Moreover, no matter which type of battery pack is used, fast charging will significantly reduce the capacity and service life of the battery pack, affecting the efficiency of the electric heavy-duty truck.

[0004] For the above reasons, the battery swap model came into being. The replaceable battery pack is generally fixed on the vehicle's bracket by a movable installation method. The battery pack can be removed for separate replacement or charging operations. After the replaced battery pack is charged, it can be installed on the vehicle. Compared with charging, first of all, battery swapping can save a lot of time. Secondly, battery swapping can avoid charging during peak hours of electricity consumption. Thirdly, battery swapping takes up less parking space. At present, the battery pack on the existing electric heavy truck is generally connected to the vehicle body through a fixed locking mechanism. The locking mechanism is generally arranged on the battery pack. The locking mechanism on the battery pack is driven by an external battery swap device to achieve locking or unlocking of the battery pack. The number of battery packs far exceeds the number of electric vehicles. Since each battery pack needs to be equipped with a corresponding locking mechanism, the overall cost of the electric vehicle is high, and the requirements for the battery swap equipment are high. It needs to be equipped with a corresponding unlocking mechanism. When performing locking and unlocking operations, the battery swap equipment and the locking mechanism on the battery pack need to be positioned and matched with high precision, resulting in complex locking and unlocking operations and low efficiency. Summary of the invention

[0005] In order to alleviate the problems of complex locking and unlocking operations and low efficiency at the station end in the prior art, the present application provides a quick-change bracket for lateral sliding of a battery pack.

[0006] The present application provides a quick-change bracket for sliding a battery pack sideways, which adopts the following technical solution:

[0007] A quick-change bracket for sliding a battery pack laterally, the battery pack being slidably connected to the quick-change bracket, the quick-change bracket comprising a locking groove, an avoidance groove and a locking mechanism, the locking groove being used for allowing a locking member on the battery pack to move to a locking position, the locking mechanism being at least partially connected in the avoidance groove, the avoidance groove having a first position and a second position for the locking mechanism to stop, when the locking mechanism is in the first position, the locking mechanism locks the locking member in the locking position to a limit position, when the locking mechanism is in the second position, the locking mechanism avoids the locking member to allow the locking member to slide out of the locking groove, and the locking mechanism slides along the avoidance groove between the first position and the second position.

[0008] By adopting the above technical solution, when the battery pack is connected to the vehicle body, the battery pack is horizontally moved to the quick-change bracket from both sides of the vehicle body, and the quick-change bracket supports the battery pack; during the movement of the battery pack, the locking piece on the battery pack slides along the locking groove to the locking position, and the locking mechanism is moved to the first position, and the locking mechanism and the locking piece cooperate to lock, thereby limiting the horizontal movement of the battery pack and making the battery pack stably connected to the quick-change bracket; the battery pack is horizontally moved from one side of the vehicle body to the quick-change bracket and connected to the quick-change bracket without crossing under the vehicle body, thereby reducing the requirements for the ground clearance of the vehicle body during the battery replacement process, and unlocking and locking are convenient, thereby improving the battery replacement efficiency.

[0009] Optionally, the avoidance groove is located on one side of the locking groove, and the avoidance groove includes a first groove and a second groove that are connected to each other, wherein one end of the first groove close to the locking groove is a first position for the locking mechanism to dock, and one end of the second groove close to the locking groove is a second position for the locking mechanism to dock, and the distance between the first position and the locking groove is smaller than the distance between the second position and the locking groove.

[0010] By adopting the above technical solution, the distance between the first position and the locking groove is smaller than the distance between the second position and the locking groove. When the locking mechanism is in the first position, it cooperates with the locking piece to lock. When the locking mechanism is in the second position, it avoids the locking piece. The insert is snapped into the avoidance groove to improve the stability of the connection between the battery pack and the quick-change bracket.

[0011] The first groove and / or the second groove comprises a plurality of parallel strip grooves, and the ends of the first groove and the second groove away from the locking groove are connected to each other; and / or the ends of the first groove and the second groove close to the locking groove are not connected to each other.

[0012] Optionally, the locking mechanism includes an insert and a lock seat, the insert is clamped in the avoidance groove, the insert moves between a first position and a second position, the locking mechanism includes a lock seat, the insert is fixedly connected to the lock seat, and an engaging portion is provided at one end of the lock seat close to the locking groove, and the engaging portion is used to engage and lock with a locking member on the battery pack.

[0013] Optionally, the engaging portion is a U-shaped engaging groove, the engaging portion includes a guiding portion and a locking portion, the guiding portion is located on a side of the locking portion close to the locking groove, and both side walls of the guiding portion are inclined relative to the side walls of the locking portion.

[0014] By adopting the above technical solution, a guide portion is provided on one side of the locking portion close to the locking groove. During the process of the lock seat and the locking member cooperating to lock, the guide portion is used to guide the locking member, thereby improving the convenience of connecting the lock seat and the locking member.

[0015] Optionally, the quick-change bracket is provided with a plurality of avoidance grooves, the plurality of avoidance grooves are arranged at intervals along the length direction of the locking groove, the plurality of avoidance grooves are located on the same side of the locking groove or are arranged at intervals on different sides of the locking groove, and a plurality of lock seats are provided, and the avoidance grooves are arranged in a one-to-one correspondence with the lock seats.

[0016] By adopting the above technical solution, multiple lock seats are provided, and the multiple lock seats are connected with the locking members on the battery pack, thereby improving the stability of the connection between the battery pack and the quick-change bracket.

[0017] Optionally, the locking mechanism further includes a linkage mechanism, and the linkage mechanism is used to connect with a plurality of lock seats to drive the plurality of lock seats to move synchronously.

[0018] By adopting the above technical solution, multiple lock seats are connected together through a linkage mechanism to drive the multiple lock seats to move synchronously, thereby improving the convenience of the locking and unlocking process.

[0019] Optionally, a driving mechanism is further included, wherein the linkage mechanism includes a connecting rod, the connecting rod is connected to the plurality of lock seats, and the driving mechanism is used to drive the connecting rod to move in a vertical or horizontal direction.

[0020] By adopting the above technical solution, during the locking or unlocking process, the multiple lock seats are driven to move by moving the driving connecting rod, thereby improving the convenience of the locking and unlocking process.

[0021] Optionally, the lock seat is connected to at least two inserts, and the two inserts are arranged in parallel.

[0022] By adopting the above technical solution, the lock seat is connected with at least two inserts, thereby limiting the rotation of the locking mechanism and improving the stability of the locking mechanism and the locking member in cooperation.

[0023] Optionally, a limiting portion is provided at one end of the insert away from the lock seat, and the limiting portion is used to limit the insert from escaping from the avoidance groove along the insertion direction.

[0024] By adopting the above technical solution, a limiting portion is provided at one end of the insert away from the lock seat, thereby reducing the possibility of the insert escaping from the avoidance groove and improving the working stability of the locking mechanism.

[0025] Optionally, the locking groove is arranged on the side plate of the quick-change bracket, the locking groove extends along the width direction of the vehicle body, and / or the end of the locking groove has an arc-shaped guiding surface.

[0026] By adopting the above technical solution, the locking groove is arranged on the side panel of the quick-change bracket, which facilitates locking and unlocking operations during the battery replacement process. An arc-shaped guide surface is arranged at the end of the locking groove to guide the locking part, thereby improving the convenience of connection between the battery pack and the quick-change bracket.

[0027] Optionally, the quick-change bracket includes a support plate, which is used to support the battery pack. A guide mechanism is provided on the support plate, and the guide mechanism is used to cooperate with a guide matching structure at the bottom of the battery pack.

[0028] By adopting the above technical solution, a guiding mechanism is provided on the pallet to cooperate with the guiding matching structure at the bottom of the battery pack, and the guiding mechanism is utilized to guide the movement of the battery pack, thereby reducing the possibility of the battery pack being offset during movement, and facilitating the subsequent locking of the battery pack.

[0029] Optionally, the guiding mechanism extends along the width direction of the vehicle body, and a plurality of guiding mechanisms are arranged on the support plate along the length direction of the vehicle body.

[0030] By adopting the above technical solution, multiple sets of guide structures are arranged on the vehicle body, and the guide structures extend along the width direction of the vehicle body. The multiple sets of guide mechanisms are used to limit the movement of the battery pack in the length direction of the vehicle body, thereby improving the stability of the connection between the battery pack and the quick-change bracket.

[0031] Optionally, the guiding mechanism comprises a guiding groove extending along a sliding direction of the battery pack, and a guiding block matching with the guiding groove is provided at the bottom of the battery pack.

[0032] In order to alleviate the problems of complex and low efficiency of locking and unlocking operations at the station end in the prior art, the present application also provides an electric vehicle.

[0033] The present application provides an electric vehicle, which adopts the following technical solution:

[0034] An electric vehicle comprises a battery pack and the above-mentioned quick-change bracket, wherein the battery pack comprises a locking member for cooperating with a locking mechanism, the locking member comprises a plurality of locking shafts, the locking shafts are arranged on the side walls of the battery pack, and the plurality of locking shafts are arranged at intervals along the length and / or width direction of the battery pack.

[0035] By adopting the above technical solution, multiple locking shafts are set on the side wall of the battery pack. After the battery pack is moved to the quick-change bracket, the multiple locking shafts cooperate with the multiple locking seats to lock the battery pack on the quick-change bracket, so that the battery pack is fixed on the quick-change bracket, and the battery pack and the quick-change bracket are conveniently locked and unlocked.

[0036] Optionally, the lock shaft includes a connecting portion and a limiting portion, the connecting portion is located between the side wall of the battery pack and the limiting portion, the limiting portion extends radially beyond the connecting portion, and the limiting portion is used to cooperate with the lock seat to limit the movement of the lock shaft along the length direction of the vehicle.

[0037] By adopting the above technical solution, a limiting portion is provided at the end of the connecting portion away from the battery pack. When the lock seat and the connecting portion are locked together, the limiting portion is utilized to limit the movement of the lock shaft in the length direction of the vehicle, thereby improving the locking stability between the lock shaft and the lock seat.

[0038] Optionally, the electric vehicle includes a beam extending along the length direction of the vehicle body, and the battery pack is at least partially located at the bottom of the beam and / or on the side of the beam.

[0039] In summary, the present application includes at least one of the following beneficial technical effects:

[0040] 1. When connecting the battery pack to the vehicle body, the battery pack is horizontally moved to the quick-change bracket from both sides of the vehicle body, and the quick-change bracket supports the battery pack; during the movement of the battery pack, the locking piece on the battery pack slides along the locking groove to the locking position, and the locking mechanism is moved to the first position. The locking mechanism and the locking piece cooperate to lock, thereby limiting the horizontal movement of the battery pack and making the battery pack stably connected to the quick-change bracket; the battery pack is horizontally moved from one side of the vehicle body to the quick-change bracket and connected to the quick-change bracket, without crossing under the vehicle body, which reduces the requirements for the ground clearance of the vehicle body during the battery replacement process, and is convenient to unlock and lock, thereby improving the battery replacement efficiency;

[0041] 2. By providing a guide portion on one side of the locking portion close to the locking groove, the locking member is guided by the guide portion during the locking process between the lock seat and the locking member, thereby improving the convenience of connecting the lock seat and the locking member;

[0042] 3. By providing a guiding mechanism on the pallet that cooperates with the guiding matching structure at the bottom of the battery pack, the guiding mechanism is used to guide the movement of the battery pack, thereby reducing the possibility of the battery pack being offset during movement, making it easier to lock the battery pack later. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0044] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application (some structural features are omitted in the figure);

[0045] Figure 2 yes Figure 1 A magnified view of part A;

[0046] Figure 3 It is a structural schematic diagram of the quick-change bracket part in the embodiment of the present application;

[0047] Figure 4 It is a structural schematic diagram of the lock seat and the insert part in the embodiment of the present application;

[0048] Figure 5 It is a structural schematic diagram of the lock seat and the insert part in the embodiment of the present application;

[0049] Figure 6 It is a schematic diagram of the structure of the battery pack part in the embodiment of the present application;

[0050] Figure 7 It is a schematic diagram of the structure of the battery pack and the connecting block in the embodiment of the present application.

[0051] : Illustration numerals: 100, quick-change bracket; 200, support plate; 210, guide groove; 300, side plate; 310, locking groove; 320, avoidance groove; 321, first groove; 322, second groove; 330, locking mechanism; 331, insert; 332, lock seat; 333, engaging portion; 334, guide portion; 335, locking portion; 336, connecting rod; 400, battery pack; 410, lock shaft; 411, connecting portion; 412, limiting portion; 420, guide block. DETAILED DESCRIPTION

[0052] In order to more clearly explain the overall concept of this application, the following Figure 1-7 This application is described in further detail.

[0053] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0054] The embodiment of the present application discloses a quick-change bracket 100 for sliding a battery pack 400 sideways.

[0055] Reference Figure 1 , Figure 2 and Figure 3, a quick-change bracket 100 for a battery pack 400 to slide in laterally, the battery pack 400 is slidably connected to the quick-change bracket 100, the quick-change bracket 100 includes a locking groove 310, an avoidance groove 320 and a locking mechanism 330, the locking groove 310 is used for the locking member on the battery pack 400 to move to a locking position, the locking mechanism 330 is at least partially connected in the avoidance groove 320, the avoidance groove 320 has a first position and a second position for the locking mechanism 330 to dock, when the locking mechanism 330 is in the first position, the locking mechanism 330 locks the locking member in the locking position to a limit position, when the locking mechanism 330 is in the second position, the locking mechanism 330 avoids the locking member to allow the locking member to slide out of the locking groove 310, and the locking mechanism 330 slides along the avoidance groove 320 between the first position and the second position.

[0056] Specifically, the quick-change bracket 100 is arranged on the vehicle chassis or the vehicle beam, and the battery pack 400 is detachably mounted on the quick-change bracket 100. During the specific installation, the locking mechanism 330 is located at the second position of the avoidance groove 320, and the battery pack 400 is moved so that the locking member of the battery pack 400 is aligned with the locking groove 310, and then the locking member on the battery pack 400 is slid along the extension direction of the locking groove 310 to the locking position, and the locking mechanism 330 is moved to the first position, and the locking mechanism 330 is locked with the locking member, thereby limiting the battery pack 400 in the horizontal direction. The bottom wall and the top wall of the locking groove 310 limit the movement of the locking part of the battery pack 400 in the vertical direction, so that the battery pack 400 is stably connected to the quick-change bracket 100; this locking method has a simple structure, high locking stability, and high efficiency. The installation process of the battery pack 400 is simple. It is only necessary to move the battery pack 400 horizontally from one side of the vehicle body to the quick-change bracket 100 and connect it to the quick-change bracket 100. There is no need to cross under the vehicle body, which reduces the requirements for the ground clearance of the vehicle body during the battery replacement process, and is convenient to unlock and lock, thereby improving the battery replacement efficiency.

[0057] Reference Figure 3 , Figure 4 and Figure 5The locking groove 310 is horizontally arranged along the vehicle width direction, and the avoidance groove 320 is located at one side of the locking groove 310. The avoidance groove 320 includes a first groove 321 and a second groove 322 that are connected to each other. The end of the first groove 321 close to the locking groove 310 is a first position for the locking mechanism 330 to stop, and the end of the second groove 322 close to the locking groove 310 is a second position for the locking mechanism 330 to stop. The distance between the first position and the locking groove 310 is smaller than the distance between the second position and the locking groove 310. Through the above-mentioned distance setting, the locking mechanism 330 located at the first position can be just engaged and locked with the locking piece on the battery pack 400, and the locking mechanism 330 located at the second position can be separated from the locking groove 310 by a certain distance so as not to hinder the locking piece from moving out of the locking groove 310. The locking mechanism 330 located at the first position and the second position is stably located at the above two positions only by the gravity of the locking mechanism 330 itself, and it is not easy to deviate from the position.

[0058] In other embodiments, other mechanisms may be added to assist the locking mechanism 330 in stably docking at the above two positions, such as providing a spring on the locking mechanism 330, and allowing the spring to always apply a force to the locking mechanism 330 in the direction of the locking groove 310, thereby improving the stability of the locking member docking at the above two positions.

[0059] In other embodiments, the locking groove 310 may also be extended along other directions to match the sliding direction of the battery pack 400 .

[0060] The first groove 321 may include a plurality of parallel strip grooves, and the ends of the plurality of strip grooves away from the locking groove 310 are connected to each other. The second groove 322 may also include a plurality of parallel strip grooves, and the ends of the plurality of strip grooves away from the locking groove 310 are connected to each other. Figure 2 The first groove 321 includes two strip grooves, and the second groove 322 also includes two strip grooves. By setting a plurality of parallel strip grooves, it is convenient for a plurality of inserts 331 on the locking mechanism 330 to be inserted into the strip grooves and slide, thereby improving the stability of the locking mechanism 330 sliding in the avoidance groove 320.

[0061] The first slot 321 and the second slot 322 are connected to each other at one end away from the locking slot 310 , so that the locking mechanism 330 can move between the first slot 321 and the second slot 322 to lock or unlock the battery pack 400 .

[0062] The first groove 321 and the second groove 322 are not connected at one end close to the locking groove 310 , so that the locking mechanism 330 can be stably parked at the first position of the first groove 321 and the second position of the second groove 322 , thereby preventing the locking mechanism 330 from falling off from the avoidance groove 320 .

[0063] The locking mechanism 330 includes an insert 331, which is clamped in the avoidance groove 320 and moves between a first position and a second position. When the locking mechanism 330 is in the first position, it is locked with the locking member, and when the locking mechanism 330 is in the second position, it avoids the locking member; the insert 331 is clamped in the avoidance groove 320, thereby improving the stability of the connection between the battery pack 400 and the quick-change bracket 100.

[0064] The locking mechanism 330 includes a locking seat 332, and the insert 331 is fixedly connected to the locking seat 332. The locking seat 332 is provided with a clamping portion at one end close to the locking groove 310, and the clamping portion is used to lock with the locking member on the battery pack 400. By providing the clamping portion, the locking mechanism 330 and the locking member are easily engaged and locked, thereby improving the convenience of locking.

[0065] The engaging portion is a U-shaped engaging groove, and the engaging portion 333 includes a guide portion 334 and a locking portion 335. The guide portion 334 is located on the side of the locking portion 335 close to the locking groove 310, and the two side walls of the guide portion 334 are arranged obliquely relative to the side walls of the locking portion 335, and the two side walls of the locking portion 335 are parallel. By arranging the guide portion 334 on the side of the locking portion 335 close to the locking groove 310, the guide portion 334 is used to guide the locking member during the process of the lock seat 332 and the locking member being locked together, thereby improving the convenience of connecting the lock seat 332 and the locking member.

[0066] In a preferred embodiment, the quick-change bracket 100 is provided with a plurality of avoidance grooves 320, and the plurality of avoidance grooves 320 are arranged at intervals along the length direction of the locking groove 310. The plurality of avoidance grooves 320 are located on the same side of the locking groove 310. In another preferred embodiment, the plurality of avoidance grooves 320 are arranged at intervals on different sides of the locking groove 310. A plurality of lock seats 332 are provided, and the avoidance grooves 320 and the lock seats 332 are arranged one by one. By utilizing the plurality of lock seats 332 to connect with the locking member on the battery pack 400, the stability of the connection between the battery pack 400 and the quick-change bracket 100 is improved.

[0067] The locking mechanism 330 also includes a linkage mechanism, which is used to connect with multiple lock seats 332 to drive the multiple lock seats 332 to move synchronously. By connecting multiple lock seats 332 together using the linkage mechanism to drive the multiple lock seats 332 to move synchronously, the convenience of the locking and unlocking process is improved.

[0068] The linkage mechanism is connected to a driving mechanism, and the linkage mechanism includes a connecting rod 336 , and the connecting rod 336 is connected to a plurality of locking seats 332 . The driving mechanism is used to drive the connecting rod 336 to move in a vertical or horizontal direction.

[0069] During the locking or unlocking process, the multiple lock seats 332 are moved by driving the connecting rod 336 to improve the convenience of the locking and unlocking process.

[0070] The lock base 332 is connected to at least two inserting members 331 , and the two inserting members 331 are arranged in parallel on the lock base 332 , so as to improve the stability of the locking mechanism 330 and the locking member in cooperation with each other.

[0071] A limiting portion 412 is provided at one end of the insert 331 away from the lock seat 332, and the limiting portion 412 is used to limit the insert 331 from escaping the avoidance groove 320 along the insertion direction. By providing the limiting portion 412 at one end of the insert 331 away from the lock seat 332, the possibility of the insert 331 escaping the avoidance groove 320 is reduced, and the working stability of the locking mechanism 330 is improved. Specifically, the limiting portion 412 is a protrusion extending in the radial direction of the insert 331 away from the axial direction of the insert 331, and the diameter of the protrusion is greater than the distance between the two side walls of the first groove 321, and also greater than the distance between the two side portions of the second groove 322.

[0072] The limiting portion 412 and the locking seat 332 are respectively located on two opposite sides of the avoidance groove 320 , thereby limiting the locking mechanism 330 from leaving the avoidance groove 320 .

[0073] Reference Figure 3 The locking groove 310 is provided on the side plate 300 of the quick-change bracket 100, and the locking groove 310 extends along the width direction of the vehicle body. When the battery pack 400 is slid into the vehicle from the side for installation, the locking member slides along the locking groove 310 to the locking position. When the battery pack 400 is installed in place, the battery pack 400 is also locked in place, and there is no need to move or operate the battery pack 400 in other directions, which simplifies the installation process of the battery pack 400.

[0074] The end of the locking groove 310 has an arc-shaped guide surface. By providing the arc-shaped guide surface at the end of the locking groove 310, the locking member is guided, thereby improving the convenience of connection between the battery pack 400 and the quick-change bracket 100.

[0075] Reference Figure 5 , Figure 6 and Figure 7 The quick-change bracket 100 includes a support plate 200, which is used to support the battery pack 400. The support plate 200 is provided with a guide mechanism, which is used to cooperate with the guide matching structure at the bottom of the battery pack 400. The side plates 300 include two pieces, which are arranged at both ends of the support plate 200 along the length direction of the vehicle.

[0076] The guide mechanism extends along the width direction of the vehicle body, and multiple sets of guide mechanisms are provided on the support plate 200 along the length direction of the vehicle body. In this embodiment, the length direction of the guide rail is parallel to the width direction of the vehicle body. By providing multiple sets of guide structures on the vehicle body, the guide structures extend along the width direction of the vehicle body, and the multiple sets of guide mechanisms are used to limit the movement of the battery pack 400 in the length direction of the vehicle body, thereby improving the stability of the connection between the battery pack 400 and the quick-change bracket 100.

[0077] The guiding mechanism includes a guiding groove 210 extending along the sliding direction of the battery pack 400 , and a guiding block 420 matching with the guiding groove 210 is provided at the bottom of the battery pack 400 .

[0078] The present application also provides an electric vehicle, including a battery pack 400 and a quick-change bracket 100. Figure 6 The battery pack 400 includes a locking member for cooperating with the locking mechanism 330. The locking member includes a plurality of locking shafts 410. The locking shafts 410 are arranged on the side wall of the battery pack 400. The plurality of locking shafts 410 are arranged at intervals along the width direction of the battery pack 400. By arranging a plurality of locking shafts 410 on the side wall of the battery pack 400, after the battery pack 400 is moved onto the quick-change bracket 100, the plurality of locking shafts 410 cooperate with the plurality of locking seats 332 to lock, so that the battery pack 400 is fixed on the quick-change bracket 100, and the battery pack 400 and the quick-change bracket 100 are conveniently locked and unlocked. In other embodiments, the locking shafts 410 may also be arranged at intervals along the length direction of the battery pack 400 or at intervals along the length and width direction of the battery pack 400.

[0079] The lock shaft 410 includes a connecting portion 411 and a limiting portion 412. The connecting portion 411 is located between the side wall of the battery pack 400 and the limiting portion 412. The limiting portion 412 extends beyond the connecting portion 411 in the radial direction of the connecting portion 411. The limiting portion 412 is used to cooperate with the lock seat 332 to limit the movement of the lock shaft 410 along the length direction of the vehicle. By arranging the limiting portion 412 at one end of the connecting portion 411 away from the battery pack 400, when the lock seat 332 cooperates with the connecting portion 411 to lock, the limiting portion 412 is used to limit the movement of the lock shaft 410 in the length direction of the vehicle, thereby improving the locking stability between the lock shaft 410 and the lock seat 332. The limiting portion 412 is a convex ring structure, and the size of the convex ring is larger than the gap of the side wall of the locking groove 310.

[0080] The electric vehicle includes a beam extending along the length direction of the vehicle body, and the battery pack 400 is at least partially located at the bottom of the beam. In other preferred embodiments, the battery pack 400 is at least partially located at the side of the beam.

[0081] Since the space at the bottom of the electric heavy truck's frame is limited and a certain ground clearance must be ensured, and the space on the side of the frame is larger, a single layer or fewer battery cells can be placed in the battery pack 400 area at the bottom of the frame, and multiple layers of battery cells can be placed in the battery pack 400 area on the side of the frame.

[0082] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0083] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0084] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A quick-change bracket for sliding a battery pack sideways, characterized in that: The battery pack is slidably connected to the quick-change bracket, and the quick-change bracket includes a locking groove, an avoidance groove and a locking mechanism. The locking groove is used for the locking piece on the battery pack to move to a locking position, and the locking mechanism is at least partially connected in the avoidance groove. The avoidance groove has a first position and a second position for the locking mechanism to dock. When the locking mechanism is in the first position, the locking mechanism locks the locking piece in the locking position to a limit position. When the locking mechanism is in the second position, the locking mechanism avoids the locking piece to allow the locking piece to slide out of the locking groove, and the locking mechanism slides along the avoidance groove between the first position and the second position.

2. A quick-change bracket for lateral sliding of a battery pack according to claim 1, characterized in that: The avoidance groove is located on one side of the locking groove, and the avoidance groove includes a first groove and a second groove that are connected. The end of the first groove close to the locking groove is a first position for the locking mechanism to dock, and the end of the second groove close to the locking groove is a second position for the locking mechanism to dock, and the distance between the first position and the locking groove is smaller than the distance between the second position and the locking groove; preferably, the first groove and / or the second groove include a plurality of parallel strip grooves, and the ends of the first groove and the second groove away from the locking groove are connected to each other; and / or, the ends of the first groove and the second groove close to the locking groove are not connected.

3. A quick-change bracket for lateral sliding of a battery pack according to claim 2, characterized in that: The locking mechanism includes an insert and a lock seat, the insert is clamped in the avoidance groove, the insert moves between a first position and a second position, the locking mechanism includes a lock seat, the insert is fixedly connected to the lock seat, and an engaging portion is provided at one end of the lock seat close to the locking groove, and the engaging portion is used to engage and lock with the locking piece on the battery pack; preferably, the engaging portion is a U-shaped slot, the engaging portion includes a guide portion and a locking portion, the guide portion is located on a side of the locking portion close to the locking groove, and the two side walls of the guide portion are inclined relative to the side walls of the locking portion.

4. A quick-change bracket for lateral sliding of a battery pack according to claim 3, characterized in that: The quick-change bracket is provided with a plurality of avoidance grooves, and the plurality of avoidance grooves are arranged at intervals along the length direction of the locking groove. The plurality of avoidance grooves are located on the same side of the locking groove or are arranged at intervals on different sides of the locking groove. A plurality of lock seats are provided, and the avoidance grooves are arranged in a one-to-one correspondence with the lock seats; preferably, the locking mechanism also includes a linkage mechanism, and the linkage mechanism is used to connect with the plurality of lock seats to drive the plurality of lock seats to move synchronously; preferably, it also includes a driving mechanism, and the linkage mechanism includes a connecting rod, and the connecting rod is connected with the plurality of lock seats, and the driving mechanism is used to drive the connecting rod to move in a vertical or horizontal direction.

5. The quick-change bracket for lateral sliding of a battery pack according to claim 3, characterized in that: The lock seat is connected to at least two inserts, and the two inserts are arranged in parallel; preferably, a limiting portion is provided at one end of the insert away from the lock seat, and the limiting portion is used to limit the insert from escaping the avoidance groove along the insertion direction; preferably, the limiting portion and the lock seat are respectively located on two opposite sides of the avoidance groove.

6. A quick-change bracket for lateral sliding of a battery pack according to claim 1, characterized in that: The locking groove is arranged on the side plate of the quick-change bracket, the locking groove extends along the width direction of the vehicle body, and / or the end of the locking groove has an arc-shaped guiding surface.

7. A quick-change bracket for lateral sliding of a battery pack according to claim 1, characterized in that: The quick-change bracket includes a support plate, which is used to support the battery pack. A guide mechanism is arranged on the support plate, and the guide mechanism is used to cooperate with the guide matching structure at the bottom of the battery pack; preferably, the guide mechanism extends along the width direction of the vehicle body, and a plurality of guide mechanisms are arranged on the support plate along the length direction of the vehicle body.

8. A quick-change bracket for lateral sliding of a battery pack according to claim 7, characterized in that: The guiding mechanism comprises a guiding groove extending along the sliding direction of the battery pack, and the guiding groove is used to cooperate with a guiding block arranged at the bottom of the battery pack.

9. An electric vehicle, characterized in that: It comprises a battery pack and a quick-change bracket for sliding the battery pack sideways as described in any one of claims 1-8, the battery pack comprising a locking member for cooperating with a locking mechanism, the locking member comprising a plurality of locking shafts, the locking shafts being arranged on the side walls of the battery pack, the plurality of locking shafts being arranged at intervals along the length and / or width direction of the battery pack; preferably, the electric vehicle comprises a beam extending along the length direction of the vehicle body, the battery pack is at least partially located at the bottom of the beam, and / or at the side of the beam.

10. An electric vehicle according to claim 9, characterized in that: The lock shaft includes a connecting portion and a limiting portion, wherein the connecting portion is located between the side wall of the battery pack and the limiting portion, and the limiting portion extends radially beyond the connecting portion, and the limiting portion is used to cooperate with the lock seat to limit the movement of the lock shaft along the length direction of the vehicle.

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