A quick-change support for battery pack side sliding and an electric vehicle

Abstract

The application relates to the technical field of electric vehicles, and discloses a quick-change support for lateral sliding of a battery pack and an electric vehicle, wherein 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 moving a locking piece on the battery pack to a locking position; the locking mechanism is at least partially connected in the avoiding groove; the avoiding groove has a first position and a second position for parking the locking mechanism; when the locking mechanism is located at the first position, the locking mechanism locks and positions the locking piece located at the locking position; when the locking mechanism is located at the second position, the locking mechanism avoids the locking piece to make the locking piece slide out of the locking groove; and the locking mechanism slides along the avoiding groove between the first position and the second position. The application has the effect of relieving the problems of complex station end locking and unlocking operation and low efficiency in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric vehicles, in particular to a quick replacement support for lateral sliding of a battery pack. BACKGROUND

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

[0003] Due to the characteristics of electric heavy trucks, the battery pack used is much larger than that of household electric vehicles. The charging time of the battery pack is too long, even if it is so-called fast charging, it still takes nearly half an hour. Moreover, no matter which battery pack is used, the capacity and service life of the battery pack will be greatly reduced if fast charging is used, which will affect the use efficiency of electric heavy trucks.

[0004] Based on the above reasons, the battery replacement mode emerges as the times require. The replaceable battery pack is generally fixed on the bracket of the vehicle through a movable installation, and the battery pack can be removed for separate replacement or charging operation. After the replaced battery pack is charged, it is installed on the vehicle. Compared with charging, first, battery replacement can save a lot of time, second, battery replacement can avoid charging during peak hours, and third, battery replacement occupies 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 provided on the battery pack, and the locking or unlocking of the battery pack is achieved by driving the locking mechanism on the battery pack through an external battery replacement equipment. Since the number of battery packs far exceeds the number of electric vehicles, and each battery pack needs to be equipped with a corresponding locking mechanism, the overall cost of the electric vehicle is high, and the battery replacement equipment requires a corresponding unlocking mechanism. When locking and unlocking operations are performed, the battery replacement equipment and the locking mechanism on the battery pack need to be precisely positioned and matched, resulting in complex and inefficient locking and unlocking operations. SUMMARY

[0005] In order to alleviate the problem of complex and inefficient locking and unlocking operations at the station end in the prior art, the present application provides a quick replacement support for lateral sliding of a battery pack.

[0006] The quick replacement support for lateral sliding of a battery pack provided by the present application adopts the following technical solution:

[0007] The utility model provides a kind of quick-change support for battery pack side sliding, the battery pack is slidably connected with quick-change support, the quick-change support includes locking groove, avoiding groove and locking mechanism, the locking groove is used for the locking piece on battery pack moves to locking position, the locking mechanism is at least partially connected in avoiding groove, the avoiding groove has the first position and the second position for the locking mechanism to berth, when the locking mechanism is located in the first position, the locking mechanism is locked to the locking piece in locking position, when the locking mechanism is located in the second position, the locking mechanism avoids locking piece to make locking piece slide out of locking groove, the locking mechanism slides along avoiding groove between the first position and the second position.

[0008] By adopting the above technical scheme, when the battery pack is connected with the vehicle body, the battery pack is horizontally moved to the quick-change support from both sides of the vehicle body, and the quick-change support 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, the locking mechanism is moved to the first position, and the locking mechanism is locked with the locking piece, thereby limiting the movement of the battery pack in the horizontal direction, so that the battery pack is stably connected to the quick-change support;The battery pack is horizontally moved to the quick-change support from one side of the vehicle body and connected with the quick-change support, without crossing the bottom of the vehicle body, which reduces the requirement for the ground clearance of the vehicle body during battery replacement, and the unlocking and locking are convenient, and the battery replacement efficiency is improved.

[0009] Optionally, the avoiding groove is located on one side of the locking groove, the avoiding groove includes a first groove and a second groove connected with each other, one end of the first groove close to the locking groove is the first position for the locking mechanism to berth, one end of the second groove close to the locking groove is the second position for the locking mechanism to berth, and the distance between the first position and the locking groove is less than the distance between the second position and the locking groove.

[0010] By adopting the above technical scheme, the distance between the first position and the locking groove is less than the distance between the second position and the locking groove, the locking mechanism cooperates with the locking piece to lock when the locking mechanism is located in the first position, and the locking mechanism avoids the locking piece when the locking mechanism is located in the second position;The insert is clamped in the avoiding groove, which improves the stability of the connection between the battery pack and the quick-change support.

[0011] The first groove and / or the second groove include a plurality of parallel strip grooves, and one end of the first groove and the second groove away from the locking groove is connected with each other;And / or, one end of the first groove and the second groove close to the locking groove is not connected.

[0012] Optionally, the locking mechanism includes an insert and a lock seat, the insert is clamped in the avoiding groove, the insert moves between the first position and the second position, the locking mechanism includes a lock seat, the insert is fixedly connected with the lock seat, and a clamping part is formed at one end of the lock seat close to the locking groove, the clamping part is used for clamping and locking with the locking piece on the battery pack.

[0013] Optionally, the clamping part is a U-shaped clamping groove, the clamping part comprises a guide part and a locking part, the guide part is located on one side of the locking part close to the locking groove, and the two side walls of the guide part are inclinedly arranged relative to the side walls of the locking part.

[0014] By adopting the above technical scheme, the guide part is arranged on one side of the locking part close to the locking groove, the locking part is guided by the guide part during cooperation of the lock seat and the locking part for locking, and the convenience of connection of the lock seat and the locking part is improved.

[0015] Optionally, a plurality of avoiding grooves are arranged on the quick-change support, the plurality of avoiding grooves are arranged at intervals along the length direction of the locking groove, the plurality of avoiding grooves are arranged 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 arranged, and the avoiding grooves and the lock seats are arranged in one-to-one correspondence.

[0016] By adopting the above technical scheme, a plurality of lock seats are arranged, the plurality of lock seats are connected with the locking part on the battery pack, and the stability of connection between the battery pack and the quick-change support is improved.

[0017] Optionally, the locking mechanism further comprises a linkage mechanism, the linkage mechanism is used for being connected with the plurality of lock seats to drive the plurality of lock seats to move synchronously.

[0018] By adopting the above technical scheme, the plurality of lock seats are connected together through the linkage mechanism to drive the plurality of lock seats to move synchronously, and the convenience of locking and unlocking is improved.

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

[0020] By adopting the above technical scheme, the plurality of lock seats are driven to move by driving the connecting rod to move during locking or unlocking, and the convenience of locking and unlocking is improved.

[0021] Optionally, the lock seat is connected with at least two insertion parts, and the two insertion parts are arranged in parallel.

[0022] By adopting the above technical scheme, the lock seat is connected with at least two insertion parts, so that the rotation of the locking mechanism is limited, and the stability of cooperation of the locking mechanism and the locking part for locking is improved.

[0023] Optionally, a limiting part is arranged at the end of the insertion part away from the lock seat, and the limiting part is used for limiting the insertion part from separating from the avoiding groove in the insertion direction.

[0024] By adopting the technical scheme, the limiting part is arranged at the end of the insert away from the lock seat, the possibility of the insert separating from the avoiding groove is reduced, and the stability of the locking mechanism in operation is improved.

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

[0026] By adopting the technical scheme, the locking groove is arranged on the side plate of the quick-change support, the locking and unlocking operations are facilitated during the battery pack replacement, and the arc-shaped guide surface is arranged at the end of the locking groove to guide the locking piece, thereby improving the convenience of the connection between the battery pack and the quick-change support.

[0027] Optionally, the quick-change support comprises a supporting plate, the supporting plate is used for supporting the battery pack, and a guide mechanism is arranged on the supporting plate and used for cooperating with a guide matching structure at the bottom of the battery pack.

[0028] By adopting the technical scheme, the guide mechanism that cooperates with the guide matching structure at the bottom of the battery pack is arranged on the supporting plate, the movement of the battery pack is guided by the guide mechanism, the possibility of the battery pack deviating during the movement is reduced, and the battery pack is conveniently locked subsequently.

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

[0030] By adopting the technical scheme, a plurality of guide structures are arranged on the vehicle body, the guide structures extend along the width direction of the vehicle body, the movement of the battery pack in the length direction of the vehicle body is limited by the plurality of guide mechanisms, and the stability of the connection between the battery pack and the quick-change support is improved.

[0031] Optionally, the guide mechanism comprises a guide groove extending along the direction in which the battery pack slides, and a guide block that cooperates with the guide groove is arranged at the bottom of the battery pack.

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

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

[0034] An electric vehicle comprises a battery pack and the quick-change support described above, the battery pack comprises a locking piece used for cooperating with the locking mechanism, the locking piece comprises a plurality of locking shafts, the locking shafts are arranged on the side wall 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 technical scheme, the plurality of lock shafts are arranged on the side wall of the battery pack, and after the battery pack is moved to the quick-change support, the plurality of lock shafts are locked with the plurality of lock seats to fix the battery pack on the quick-change support, so that the battery pack is conveniently locked and unlocked with the quick-change support.

[0036] Optionally, the lock shaft comprises 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 beyond the connecting portion along the radial direction of the connecting portion, and the limiting portion is used for limiting the movement of the lock shaft along the length direction of the vehicle in cooperation with the lock seat.

[0037] By adopting the technical scheme, the limiting portion is arranged at the end of the connecting portion away from the battery pack, and after the lock seat is locked with the connecting portion, the movement of the lock shaft in the length direction of the vehicle is limited by the limiting portion, so that the stability of the locking between the lock shaft and the lock seat is improved.

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

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

[0040] 1. When connecting the battery pack and the vehicle body, the battery pack is horizontally moved to the quick-change support from both sides of the vehicle body, and the quick-change support supports the battery pack; during the movement of the battery pack, the locking member on the battery pack slides along the locking groove to the locking position, the locking mechanism is moved to the first position, the locking mechanism is locked with the locking member, so as to limit the movement of the battery pack in the horizontal direction, and the battery pack is stably connected to the quick-change support; the battery pack is horizontally moved to the quick-change support from one side of the vehicle body and connected to the quick-change support, without crossing the bottom of the vehicle body, so that the requirement for the ground clearance of the vehicle body during the battery replacement process is reduced, the unlocking and locking are convenient, and the battery replacement efficiency is improved.

[0041] 2. By arranging the guide portion on the side of the locking portion close to the locking groove, the locking member is guided by the guide portion during the locking of the lock seat and the locking member, so as to improve the convenience of the connection between the lock seat and the locking member.

[0042] 3. By arranging the guide mechanism matched with the guide structure of the bottom of the battery pack on the supporting plate, the movement of the battery pack is guided by the guide mechanism, so as to reduce the possibility of deviation of the battery pack during the movement, and facilitate the subsequent locking of the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0043] The drawings described herein are used to provide 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 (part of the structural features are omitted in the figure);

[0045] Figure 2 is a schematic diagram of the overall structure of an embodiment of the present application (part of the structural features are omitted in the figure); Figure 1 is an enlarged view of part A in

[0046] Figure 3 is a schematic diagram of the structure of the quick-change support part in an embodiment of the present application;

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

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

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

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

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

[0052] In order to more clearly illustrate the overall concept of the present application, the following will combine the accompanying drawings with the specific embodiments of the present application. Figures 1-7 The present application will be further described in detail.

[0053] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the scope of protection 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 can be combined with each other without conflict.

[0054] The embodiments of the present application disclose a quick-change support 100 for lateral sliding of a battery pack 400.

[0055] Referring to Figure 1 , Figure 2 and Figure 3The application discloses a quick-change support 100 for a battery pack 400 to slide in sideways, the battery pack 400 is slidably connected with the quick-change support 100, the quick-change support 100 comprises a locking groove 310, an avoiding groove 320 and a locking mechanism 330, the locking groove 310 is used for a locking piece on the battery pack 400 to move to a locking position, the locking mechanism 330 is at least partially connected in the avoiding groove 320, the avoiding groove 320 has a first position and a second position for the locking mechanism 330 to stop, when the locking mechanism 330 is located at the first position, the locking mechanism 330 locks and positions the locking piece at the locking position, when the locking mechanism 330 is located at the second position, the locking mechanism 330 avoids the locking piece to make the locking piece slide out of the locking groove 310, and the locking mechanism 330 slides along the avoiding groove 320 between the first position and the second position.

[0056] Specifically, the quick-change support 100 is arranged on a vehicle chassis or a vehicle beam, the battery pack 400 is detachably arranged on the quick-change support 100, and when the battery pack 400 is arranged, the locking mechanism 330 is located at the second position of the avoiding groove 320, the battery pack 400 is moved, the locking piece of the battery pack 400 is aligned with the locking groove 310, then the locking piece on the battery pack 400 is slid along the extension direction of the locking groove 310 to the locking position, the locking mechanism 330 is moved to the first position, the locking mechanism 330 is locked with the locking piece, thereby limiting the movement of 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 piece of the battery pack 400 in the vertical direction, and the battery pack 400 is stably connected to the quick-change support 100; the locking mode has the advantages of simple structure, high locking stability, high efficiency, simple installation process of the battery pack 400, only needs to horizontally move the battery pack 400 from one side of a vehicle body to the quick-change support 100 and connect the battery pack 400 and the quick-change support 100 together, does not need to cross the bottom of the vehicle body, reduces the requirement on the ground clearance of the vehicle body in the battery replacement process, and is convenient to unlock and lock, and improves the battery replacement efficiency.

[0057] With reference to Figure 3 , Figure 4 and Figure 5The locking groove 310 is horizontally arranged along the vehicle width direction, and the avoiding groove 320 is located on one side of the locking groove 310. The avoiding groove 320 includes a first groove 321 and a second groove 322 connected with each other. The first groove 321 is close to one end of the locking groove 310, and is a first position for the locking mechanism 330 to stop. The second groove 322 is close to one end of the locking groove 310, and is a second position for the locking mechanism 330 to stop. The distance between the first position and the locking groove 310 is less than the distance between the second position and the locking groove 310. Through the above arrangement of the distance, the locking mechanism 330 located at the first position can be just clamped with the locking part on the battery pack 400, and the locking mechanism 330 located at the second position can be spaced apart from the locking groove 310 by a certain distance, so as not to hinder the locking part 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 is not easy to deviate from the positions.

[0058] In other embodiments, other mechanisms can also be added to assist the locking mechanism 330 to stably stop at the above two positions. For example, a spring can be arranged on the locking mechanism 330, and the spring always applies a force to the locking mechanism 330 in the direction of the locking groove 310, thereby improving the stability of the locking part in the above two positions.

[0059] In other embodiments, the locking groove 310 can also be arranged in other directions, and can be matched with the sliding direction of the battery pack 400.

[0060] The first groove 321 can include a plurality of parallel strip-shaped grooves, and the plurality of strip-shaped grooves are connected with each other away from one end of the locking groove 310. The second groove 322 can also include a plurality of parallel strip-shaped grooves, and the plurality of strip-shaped grooves are connected with each other away from one end of the locking groove 310. For example, the first groove 321 includes two strip-shaped grooves, and the second groove 322 also includes two strip-shaped grooves. Figure 2 Through the arrangement of a plurality of parallel strip-shaped grooves, the plurality of insertion parts 331 on the locking mechanism 330 can be inserted into the strip-shaped grooves and slide, thereby improving the stability of the locking mechanism 330 in the avoiding groove 320.

[0061] The first groove 321 and the second groove 322 are connected with each other away from one end of the locking groove 310, so as to facilitate the movement of the locking mechanism 330 between the first groove 321 and the second groove 322, so as to lock or unlock the battery pack 400.

[0062] The first groove 321 and the second groove 322 are not connected with each other close to one end of the locking groove 310, so as to facilitate the locking mechanism 330 to stably stop at the first position of the first groove 321 and the second position of the second groove 322, and prevent the locking mechanism 330 from falling out of the avoiding groove 320.

[0063] The locking mechanism 330 includes an insert 331 clamped in the avoiding groove 320, and the insert 331 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 piece, and when the locking mechanism 330 is in the second position, it avoids the locking piece; the insert 331 is clamped in the avoiding groove 320, which improves the stability of the connection between the battery pack 400 and the quick-change support 100.

[0064] The locking mechanism 330 includes a lock seat 332 fixedly connected with the insert 331, and the lock seat 332 is provided with a clamping portion at one end close to the locking groove 310, which is used for locking with the locking piece on the battery pack 400. By arranging the clamping portion, the clamping and locking of the locking mechanism 330 and the locking piece are facilitated, and the convenience of locking is improved.

[0065] The clamping portion is a U-shaped clamping groove, which includes a guide portion 334 and a locking portion 335. The guide portion 334 is located at one side of the locking portion 335 close to the locking groove 310, and the two side walls of the guide portion 334 are inclined 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 at one side of the locking portion 335 close to the locking groove 310, the locking piece is guided during the locking of the lock seat 332 with the locking piece, and the convenience of connecting the lock seat 332 with the locking piece is improved.

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

[0067] The locking mechanism 330 further includes a linkage mechanism for connecting with the plurality of lock seats 332 to drive the plurality of lock seats 332 to move synchronously. By connecting the plurality of lock seats 332 together through the linkage mechanism to drive the plurality of lock seats 332 to move synchronously, the convenience of the locking and unlocking process is improved.

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

[0069] During the locking or unlocking process, the plurality of lock seats 332 are driven to move by driving the connecting rod 336 to move, and the convenience of the locking and unlocking process is improved.

[0070] The lock seat 332 is connected with at least two inserts 331, and the two inserts 331 are arranged in parallel on the lock seat 332, so as to improve the stability of the locking mechanism 330 in cooperation with the locking piece.

[0071] The end of the insert 331 away from the lock seat 332 is provided with a limiting portion 412, and the limiting portion 412 is used for limiting the insert 331 from being separated from the avoiding groove 320 in the insertion direction. By arranging the limiting portion 412 at the end of the insert 331 away from the lock seat 332, the possibility of the insert 331 being separated from the avoiding groove 320 is reduced, and the stability of the locking mechanism 330 in operation is improved. Specifically, the limiting portion 412 is a protruding portion extending in a direction away from the axis of the insert 331 along the radial direction of the insert 331, and the diameter of the protruding portion 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 walls of the second groove 322.

[0072] The limiting portion 412 and the lock seat 332 are located at two opposite sides of the avoiding groove 320 respectively, so as to limit the locking mechanism 330 from being separated from the avoiding groove 320.

[0073] Referring to Figure 3 , the locking groove 310 is arranged on the side plate 300 of the quick-change support 100, and the locking groove 310 extends along the width direction of the vehicle body. When the battery pack 400 is slid into the installation from the side of the vehicle, the locking piece can be slid to the locking position along the locking groove 310, so that the battery pack 400 is locked in place at the same time when the battery pack 400 is installed in place, without the need for other direction movement or operation of the battery pack 400, thereby simplifying the process of installing the battery pack 400.

[0074] The end of the locking groove 310 has an arc-shaped guide surface. By arranging the arc-shaped guide surface at the end of the locking groove 310, the locking piece is guided, and the convenience of the connection between the battery pack 400 and the quick-change support 100 is improved.

[0075] Referring to Figure 5 , Figure 6 and Figure 7 , the quick-change support 100 includes a supporting plate 200, and the supporting plate 200 is used for supporting the battery pack 400. The supporting plate 200 is provided with a guide mechanism for cooperating with the guide matching structure at the bottom of the battery pack 400. The side plate 300 includes two plates arranged at two ends of the supporting plate 200 along the length direction of the vehicle.

[0076] The guide mechanism extends along the width direction of the vehicle body, and the plurality of guide mechanisms are arranged along the length direction of the vehicle body on the tray 200. In the embodiment, the length direction of the guide rail is parallel to the width direction of the vehicle body. By arranging the plurality of guide mechanisms on the vehicle body, the guide mechanism extends along the width direction of the vehicle body, and the plurality of guide mechanisms are used to limit the movement of the battery pack 400 along the length direction of the vehicle body, thereby improving the stability of the connection between the battery pack 400 and the quick-change support 100.

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

[0078] The application also provides an electric vehicle comprising the battery pack 400 and the quick-change support 100. Referring to Figure 6 The battery pack 400 comprises a locking member matched with the locking mechanism 330, and the locking member comprises a plurality of locking shafts 410 arranged on the side wall of the battery pack 400 and spaced apart along the width direction of the battery pack 400. By arranging the plurality of locking shafts 410 on the side wall of the battery pack 400, when the battery pack 400 is moved onto the quick-change support 100, the plurality of locking shafts 410 are matched with the plurality of lock seats 332 to lock the battery pack 400 on the quick-change support 100, and the locking and unlocking of the battery pack 400 and the quick-change support 100 are convenient. In other embodiments, the locking shafts 410 can also be arranged along the length direction of the battery pack 400 or simultaneously along the length and width directions of the battery pack 400.

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

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

[0081] Due to the limited space at the bottom of the beam of the electric heavy truck, and the need to ensure a certain ground clearance, the space at the side of the beam is larger, so the battery pack 400 area at the bottom of the beam can place single or fewer battery cells, and the battery pack 400 area at the side of the beam can place multiple layers of battery cells.

[0082] The places not mentioned in the application can be realized by using or referring to the existing technology.

[0083] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment mainly explains the difference from other embodiments.

[0084] The above are the preferred embodiments of the application, but not to limit the protection scope of the application, therefore: all equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A quick-change support for battery pack side sliding, characterized in that: 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 moving a locking piece on the battery pack to a locking position, the locking mechanism is at least partially connected in the avoiding groove, the avoiding groove has a first position and a second position for parking the locking mechanism, the avoiding groove is located on one side of the locking groove, the avoiding groove is perpendicular to the locking groove, the avoiding groove comprises a first groove and a second groove which are connected, one end of the first groove close to the locking groove is the first position for parking the locking mechanism, one end of the second groove close to the locking groove is the second position for parking the locking mechanism, 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 located at the first position, the locking mechanism locks and positions the locking piece in the locking position, when the locking mechanism is located at the second position, the locking mechanism avoids the locking piece to make the locking piece slide out of the locking groove, the locking mechanism slides along the avoiding groove between the first position and the second position; the locking mechanism comprises an inserting piece and a lock seat, the inserting piece is clamped in the avoiding groove, the inserting piece moves between the first position and the second position, the locking mechanism comprises a lock seat, the inserting piece is fixedly connected with the lock seat, one end of the lock seat close to the locking groove is provided with a clamping part, the clamping part is used for clamping and locking with the locking piece on the battery pack.

2. The quick-change support for battery pack side sliding-in according to claim 1, characterized in that: The first groove and / or the second groove comprises a plurality of parallel strip-shaped grooves, one end of the first groove and the second groove away from the locking groove is communicated with each other; and / or, one end of the first groove and the second groove close to the locking groove is not communicated.

3. The quick-change support for battery pack side sliding-in according to claim 2, characterized in that: The clamping part is a U-shaped clamping groove, the clamping part comprises a guide part and a locking part, the guide part is located on one side of the locking part close to the locking groove, the two side walls of the guide part are inclinedly arranged relative to the side walls of the locking part.

4. The quick-change support for battery pack side sliding-in according to claim 3, characterized in that: A plurality of avoiding grooves are arranged on the quick-change support, the plurality of avoiding grooves are arranged at intervals along the length direction of the locking groove, the plurality of avoiding 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 arranged, and the avoiding grooves and the lock seats are one-to-one corresponding.

5. The quick-change support for battery pack side sliding-in according to claim 3, characterized in that: The locking mechanism further comprises a linkage mechanism, the linkage mechanism is used for being connected with the plurality of lock seats to drive the plurality of lock seats to move synchronously.

6. The quick-change support for battery pack side sliding-in according to claim 3, characterized in that: A driving mechanism is further included, the linkage mechanism comprises a connecting rod, the connecting rod is connected with the plurality of lock seats, and the driving mechanism is used for driving the connecting rod to move in the vertical or horizontal direction.

7. The quick-change support for battery pack side sliding-in according to claim 3, characterized in that: The lock seat is connected with at least two inserting pieces, and the two inserting pieces are arranged in parallel.

8. The quick-change support for battery pack side sliding-in according to claim 7, characterized in that: One end of the inserting piece away from the lock seat is provided with a limiting part, and the limiting part is used for limiting the inserting piece to move away from the avoiding groove in the inserting direction.

9. The quick-change support for battery pack side sliding-in according to claim 8, characterized in that: The limiting part and the lock seat are respectively located on two sides of the avoiding groove away from each other.

10. The quick-change support for battery pack side sliding-in of claim 1, wherein: The locking groove is arranged on the side plate of the quick-change support, the locking groove extends along the width direction of the vehicle body, and / or the end portion of the locking groove has an arc-shaped guide surface.

11. The quick-change support for battery pack side sliding-in according to claim 1, characterized in that: The quick-change support comprises a supporting plate, the supporting plate is used for supporting the battery pack, and a guide mechanism is arranged on the supporting plate and is used for cooperating with a guide matching structure on the bottom of the battery pack.

12. The quick-change support for battery pack side sliding-in according to claim 11, characterized in that: The guide mechanism extends along the width direction of the vehicle body, and a plurality of groups of guide mechanisms are arranged on the tray along the length direction of the vehicle body.

13. The quick-change support for battery pack side sliding-in of claim 11, wherein: The guide mechanism comprises a guide groove extending along the sliding direction of the battery pack, and the guide groove is used for cooperating with a guide block arranged at the bottom of the battery pack.

14. An electric vehicle characterized by comprising: The electric vehicle comprises 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 at the side of the beam.

15. An electric vehicle as claimed in claim 14, wherein: The lock shaft comprises 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 beyond the connecting portion along the radial direction of the connecting portion, and the limiting portion is used for cooperating with the lock seat to limit the movement of the lock shaft along the length direction of the vehicle.

16. The electric vehicle of claim 14, wherein, The lock shaft comprises 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 beyond the connecting portion along the radial direction of the connecting portion, and the limiting portion is used for cooperating with the lock seat to limit the movement of the lock shaft along the length direction of the vehicle.

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