Battery pack locking device with multiple lock tongues in linkage and automobile

Abstract

The utility model provides a battery pack locking device with multiple lock tongues linked, which is used for locking and fixing a battery pack on an automobile and comprises a lock catch fixed on the battery pack, lock tongues arranged on the automobile and a driving component arranged on the automobile and used for driving the lock tongues to move, the lock catches are provided with lifting holes, the lock tongues are driven by the driving assembly to be inserted into the lifting holes and support the lock catches in the height direction, the number of the lock catches and the number of the lock tongues are both multiple, and the driving assembly comprises a connecting plate fixedly connected with the lock tongues and power used for driving the connecting plate to move in the horizontal direction. According to the battery pack locking device with the multiple lock tongues in linkage, the lock catches and the lock tongues are arranged to be of a matched structure to fix the battery pack, and the battery pack can be installed by lifting the battery pack. And through the arrangement of the connecting plate, one power source can drive the multiple lock tongues to move, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to a battery pack locking device with multi-latch linkage and an automobile. Background Art

[0002] With the shortage of world energy and environmental protection requirements, automobiles powered by gasoline and diesel are subject to certain restrictions and impacts. Environmentally friendly and energy-saving electric vehicles have become an important branch of the automotive industry, which just meets the dual requirements of energy and environmental protection. The key component in an electric vehicle is the battery. A reasonable layout and installation of the battery can provide greater power for the electric vehicle. In existing electric vehicles, generally, the battery is assembled into a battery frame, and the battery frame is fixed to the chassis of the electric vehicle.

[0003] Although electric vehicles have developed rapidly due to their advantages of energy conservation and environmental protection, due to the unsatisfactory energy density of in-vehicle power batteries, the cruising range of electric vehicles per single charge is relatively short, and the charging time for each battery charge is too long, which severely restricts the use and popularization of electric vehicles. Therefore, the technology of rapid battery replacement for electric vehicles has also become a research hotspot in the new energy field.

[0004] In the existing battery replacement technology, it is necessary to use screws to fix the battery pack on the vehicle body. However, because the fixing methods and positions of each manufacturer are different, there is no general-purpose equipment that can meet the installation of all new energy batteries.

[0005] In view of this, it is necessary to improve the existing battery pack locking device with multi-latch linkage to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a battery pack locking device with multi-latch linkage to solve the problems of poor universality in the installation of existing battery packs and difficulty in realizing automatic installation.

[0007] To achieve the above purpose, the utility model provides a battery pack locking device with multi-latch linkage for locking and fixing a battery pack on an automobile. The battery pack locking device with multi-latch linkage includes a lock catch fixed on the battery pack, a latch arranged on the automobile, and a driving component arranged on the automobile for driving the latch to move. The latch is driven by the driving component to support the lock catch in the height direction. The number of the lock catch and the latch is multiple. The driving component includes a connecting plate fixedly connected with multiple latches and a power source for driving the connecting plate to move horizontally.

[0008] As a further improvement of the utility model, multiple lock catches and latches are respectively arranged on the left and right sides of the battery pack, and the power source is set as two sets, respectively driving multiple latches on one side of the battery pack.

[0009] As a further improvement of the present utility model, the battery pack locking device with multi-latch linkage further includes an elastic pad and a transition member fixed on the vehicle. When the latch abuts against the lock catch in the height direction, the upper end of the lock catch compresses the elastic pad, and the transition member is arranged above the lock catch in the height direction and abuts against the elastic pad.

[0010] As a further improvement of the present utility model, the connecting plate is arranged above the transition member. The transition member protrudes upwardly with a guiding block, and the connecting plate is provided with a guiding groove arranged in the front-rear direction. When the latch is inserted and cooperated with the lock catch, the guiding groove slides relative to the guiding block.

[0011] As a further improvement of the present utility model, the latch includes a latch body and a latch block connecting the latch body and the connecting plate, and the latch block extends in the height direction.

[0012] As a further improvement of the present utility model, the connecting plate includes a plurality of connecting blocks fixedly connected in the horizontal direction, and each connecting block is provided with one of the guiding grooves.

[0013] As a further improvement of the present utility model, the battery pack locking device with multi-latch linkage further includes an elastic pad and a limiting member arranged below the transition member for abutting against the lock catch. The limiting member is arranged below the elastic pad so that the elastic pad abuts between the limiting member and the transition member.

[0014] As a further improvement of the present utility model, the connecting plate is arranged on the side of the latch away from the battery pack. The limiting member protrudes towards the side away from the battery pack with a guiding wheel, and the connecting plate is provided with a guiding groove arranged in the front-rear direction. When the latch is inserted and cooperated with the lock catch, the guiding groove slides relative to the guiding wheel.

[0015] As a further improvement of the present utility model, the latch includes a latch body and a latch block connecting the latch body and the connecting plate, and the latch block extends in the horizontal direction.

[0016] As a further improvement of the present utility model, the power source is arranged outside the latch away from the battery pack, and the battery pack locking device with multi-latch linkage further includes a power source bracket for placing the power source.

[0017] As a further improvement of the present utility model, the power source is an electric push rod, and the electric push rod draws power from the vehicle. The control elements of two sets of the electric push rods are arranged on the vehicle, and the actions of the electric push rods are controlled by the vehicle or an external device connected to the vehicle.

[0018] The present utility model also provides an automobile, which includes a battery pack and a battery pack locking device with multiple locking tongues in linkage as described above.

[0019] The beneficial effects of the present utility model are as follows: The battery pack locking device with multiple locking tongues in linkage of the present utility model is configured with a matching structure of a lock catch and locking tongues to fix the battery pack. Lifting the battery pack can achieve the installation of the battery pack. It has strong versatility and is easy to realize the automation of battery pack loading and unloading. By providing a connecting plate, a power source can drive the movement of multiple locking tongues, thus reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the battery pack locking device with multiple locking tongues in linkage and the battery pack in Embodiment 1 of the present utility model;

[0021] Figure 2 is Figure 1 a schematic side structure diagram after removing the power source and the second baffle in

[0022] Figure 3 is Figure 1 a schematic structure diagram of the fixed part between the battery pack locking device with multiple locking tongues in linkage and the battery pack in

[0023] Figure 4 is Figure 1 a schematic structure diagram of the fixed part between the battery pack locking device with multiple locking tongues in linkage and the automobile in

[0024] Figure 5 is Figure 4 a schematic structure diagram of the transition piece, elastic pad, limiting piece and locking tongue in

[0025] Figure 6 is Figure 5 an enlarged schematic structure diagram of area A in

[0026] Figure 7 is Figure 1 a schematic side sectional structure diagram of the structure in

[0027] Figure 8 is Figure 7 an enlarged schematic structure diagram of area B in

[0028] Figure 9 is Figure 1 a three-dimensional structure diagram of the lock catch in

[0029] Figure 10 is Figure 1 a three-dimensional structure diagram of the locking tongue in

[0030] Figure 11It is a schematic diagram of the overall structure of the battery pack locking device with multi-locking tongue linkage and the battery pack according to the second embodiment of the present invention;

[0031] Figure 12 It is a top view structural schematic diagram of the battery pack locking device with multi-locking tongue linkage and the battery pack according to the second embodiment of the present invention;

[0032] Figure 13 Is Figure 11 Side sectional structural schematic diagram of the structure;

[0033] Figure 14 Is Figure 13 Enlarged structural schematic diagram of area C in;

[0034] Figure 15 Is Figure 11 Stereoscopic structural schematic diagram of the locking tongue in. Detailed implementation manners

[0035] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] Such as Figures 1 to 15As shown, the vehicle of the present utility model includes a battery pack and a battery pack locking device with multiple locking tongues in linkage.

[0039] The battery pack locking device 100 with multiple locking tongues in linkage of the present utility model is used to lock and fix the battery pack 200 on the vehicle. Here, the vehicle refers to a new energy vehicle mainly powered by the battery pack 200.

[0040] The battery pack locking device 100 with multiple locking tongues in linkage includes a lock catch 1 fixed on the battery pack 200, a locking tongue 2 arranged on the vehicle, a driving component 3 arranged on the vehicle to drive the locking tongue 2 to move, an elastic pad 4 arranged on the vehicle, a transition piece 5 fixed on the vehicle, a limiting piece 6 fixed on the vehicle, a fixing plate 7 fixed on the battery pack 200, a first baffle 8 arranged below the locking tongue 2, a second baffle 9 spaced from the fixing plate 7, a power source bracket 10, and a limiting wheel 101 fixed to the vehicle.

[0041] In this embodiment, the number of the lock catches 1 is multiple, and the multiple lock catches 1 are arranged on both sides of the battery pack 200 in the left - right direction. Among them, the forward and backward directions of the vehicle are the front - rear direction. In some embodiments, the lock catch 1 structure can also be arranged in the front - rear direction of the battery pack 200, and the driving component 3 and the locking tongue 2 are correspondingly arranged on the vehicle.

[0042] As Figure 3 shown, the lock catch 1 is fixed on the fixing plate 7 and / or the first baffle 8 and / or the second baffle 9, and the first baffle 8 is fixedly connected to the lower ends of the fixing plate 7 and the second baffle 9. In this embodiment, the fixing plate 7, the first baffle 8 and the second baffle 9 are U - shaped and have an upward opening. The lock catch 1 is located in the formed U - shaped space. The first baffle 8, the second baffle 9 and the fixing plate 7 can protect the lock catch 1 from below and from the side, preventing pollution to the battery pack locking device 100 with multiple locking tongues in linkage caused by rain, snow, dust, etc., and preventing problems such as the inability to disassemble and install the battery pack 200 due to icing and other problems. In addition, in order to ensure the sealing performance, cover plates 91 can be arranged along the front and rear ends of the U - shape. The cover plates 91 are integrally formed with or fixedly connected to the first baffle 8 and the second baffle 9.

[0043] The fixing plate 7 plays a main supporting role. In this embodiment, the fixing plate 7 is fixed on the battery pack 200, the lock catch 1 is fixed on the fixing plate 7, the first baffle 8 is directly fixed on the fixing plate 7, and the second baffle 9 is indirectly fixed on the fixing plate 7 through the first baffle 8.

[0044] The axial direction of the limiting wheel 101 is the same as the moving direction of the locking tongue 2. When the locking tongue 2 abuts against the buckle 1, the limiting wheel 101 abuts against the fixing plate 7 in the horizontal direction. The limiting wheel 101 can limit the movement of the battery pack 200 in the left-right direction. Of course, two limiting wheels 101 can also be arranged in the left-right direction to respectively abut against the fixing plate 7 and the second baffle 9, or the diameter of the limiting wheel 101 can be increased so that one limiting wheel 101 can abut against both the fixing plate 7 and the second baffle 9, which can better prevent the problem of left-right shaking.

[0045] As Figure 9 shown, the buckle 1 includes a buckle body 11 and a lifting guide wheel 12 fixed on the buckle body 11. The locking tongue 2 is driven by the driving component 3 to abut against the lifting guide wheel 12 in the height direction to support the buckle 1.

[0046] The lifting guide wheel 12 includes a support roller 121 and a rotating shaft 122 coaxially arranged with the support roller 121. The rotating shaft 122 is fixedly connected to the buckle body 11, and the support roller 121 is rotatably arranged relative to the rotating shaft 122. When the buckle 1 abuts against the locking tongue 2, the support roller 121 contacts the locking tongue 2, thereby reducing the friction and improving the service life of the buckle 1.

[0047] In some embodiments, the number of the lifting guide wheels 12 is two. The two lifting guide wheels 12 have the same height in the vertical direction and are arranged at intervals in the horizontal direction. The two lifting guide wheels 12 can provide stronger support strength.

[0048] As Figure 10 and Figure 15 shown, the locking tongue 2 is driven by the driving component 3 to support the buckle 1 in the height direction. The locking tongue 2 includes a guiding section 21, a lifting section 22 connected to the guiding section 21, and a dead point section 23 connected to the lifting section 22. When the locking tongue 2 is inserted and matched with the buckle 1, the guiding section 21 is the section that is first inserted into the lifting hole.

[0049] The upper surfaces of the guiding section 21 and the lifting section 22 are inclined with respect to the horizontal direction. The end of the guiding section 21 facing the movement of the buckle 1 is lower, which mainly serves as a guiding function to prevent damage caused by the locking tongue 2 hitting the buckle 1 in the horizontal direction due to too high a position.

[0050] The included angle between the upper surface of the guiding section 21 and the horizontal plane is greater than the included angle between the upper surface of the lifting section 22 and the horizontal plane. The lifting section 22 mainly serves to lift the buckle 1 and absorb the deviation in height.

[0051] Furthermore, the included angle between the upper surface of the guiding section 21 and the horizontal plane is 15 - 25 degrees, and the included angle between the upper surface of the lifting section 22 and the horizontal plane is 3 - 5 degrees.

[0052] In this embodiment, the included angle between the upper surface of the guiding section 21 and the horizontal plane is 20 degrees, and the included angle between the upper surface of the lifting section 22 and the horizontal plane is 4 degrees. The relatively small inclination angle of the upper surface of the lifting section 22 enables a relatively small distance of movement in the height direction.

[0053] The length of the lifting section 22 in the horizontal direction is less than the length of the guiding section 21 in the horizontal direction. The reason for such a setting is also to reduce the lifting height of the latch 1 in the vertical direction, and at the same time, to increase the lifting force in the height direction through the lever principle, so as to reduce the power of the driving component 3.

[0054] The upper surface of the dead - point section 23 is parallel to the horizontal plane. When the dead - point section 23 abuts against the lifting guide wheel 12 of the latch 1, it prevents the latch 1 from moving up and down. At this time, the elastic pad 4 undergoes a relatively large compressive deformation, and the dead - point section 23 can further reduce the influence of vibration.

[0055] When the dead - point section 23 of the locking tongue 2 abuts against the latch 1 in the height direction, the upper end of the latch 1 compresses the elastic pad 4.

[0056] The guiding section 21 has a large slope and a high drop, which is used for the lifting of the battery pack 200 and absorbing the position difference in the height direction; the lifting section 22 is used to apply force to compress the elastic pad 4, so as to increase the locking force in the vertical direction, and the height of the lifting section 22 is less than the height that the elastic pad 4 can be extruded; the dead - point section 23 is used to maintain the locked state of the battery pack 200.

[0057] To ensure the fastening effect of the battery pack 200 during the driving of the vehicle, that is, the battery pack 200 and the vehicle can be stably attached, it is required that the maximum static friction force after their attachment is greater than the inertial force (including bumps, braking, impacts, etc.) that the vehicle may exert; according to relevant standards, the maximum value of this inertial force is twice the self - weight of the battery pack, that is, f = 2g, where f is the inertial force and g is the self - weight of the battery pack 200.

[0058] Under the action of the component force F2 (horizontal component force) of the external force F (the driving force of the locking tongue 2), the extrusion force T of the elastic pad 4 is generated (T = F2* / tanα), where α is the inclination angle of the lifting section 22. Then, T*μ>f (twice the self - weight of the battery pack, that is, 2g), where μ is the friction coefficient between the locking tongue 2 and the elastic pad 4.

[0059] To reduce T (and thus reduce F2, making F much larger than F2 and ensuring to a greater extent that the lock block can enter the dead point section 23), the value of μ can be increased. The μ between iron parts is about 0.1 - 0.12, while the μ between rubber and steel parts is 0.6 - 0.8. And the elastic pad 4 acts on the fit between the battery pack and the vehicle through the extrusion force in the stroke direction after extrusion.

[0060] In addition, T = F2* / tanα, and the angle α is small, thus achieving the effect of increasing the force. This is also the reason why the slope of the extrusion force - increasing surface, i.e., the lifting section 22, is small and the vertical displacement is small.

[0061] To ensure entering the dead point holding surface, the external force F > F2 (the force T provided by the extrusion of the elastic pad 4); for this purpose, if under the action of F, the extrusion amount of the elastic pad 4 > the squeezable amount of the elastic pad 4; thus, under the action of the external force F, the lock tongue 2 must be able to reach the dead point section 23 by extruding the elastic pad 4.

[0062] The thickness of the elastic pad 4 is greater than the height difference of the upper surface of the lifting section 22 in the vertical direction. The lock 1 presses the elastic pad 4, so that the lock 1 is tightly clamped between the elastic pad 4 and the lock tongue 2. The elastic pad 4 can weaken the alternating stress of the lock 1, absorb a certain amount of impact, have a certain energy - storage function, reduce the influence of the vibration during vehicle driving on the multi - lock - tongue linked battery pack locking device 100, and prevent the connection structure from breaking. In this embodiment, the elastic pad 4 is made of rubber material. And after being worn after multiple uses, only the elastic pad 4 needs to be replaced, without having to replace other structures.

[0063] The transition piece 5 is arranged above the elastic pad 4 in the height direction and abuts against the elastic pad 4. The limiting piece 6 is arranged below the elastic pad 4 so that the elastic pad 4 abuts between the limiting piece 6 and the transition piece 5.

[0064] The lifting guide wheel 12 and the dead point section 23 finally abut against each other at a certain position, and the distance between the position and the lifting section 22 in the horizontal direction is L0. The lock buckle 1 and the limiter 6 are arranged at intervals in the horizontal direction, and the distance between the lock buckle 1 and any section of the limiter 6 in the horizontal direction is less than L0. Preferably, the distance between the lock buckle 1 and the two ends of the limiter 6 is s / 2, and s / 2<L0. The purpose of this setting is to assume that in the extreme case, the inertia force of the vehicle is greater than the maximum static friction between the battery pack 200 and the vehicle, so that the battery pack has a certain relative displacement. At this time, the gap between the lock buckle 1 and the limiter 6 will be eaten up, and the limiter 6 will play a role in limiting the lock buckle 1. The movable distance of the lock buckle 1 in the limiter 6 is set to s, and the distance moved toward one end is s / 2. In this way, as long as s / 2<L0, the lifting guide wheel 12 will not leave the dead point section 23 and enter the lifting section 22.

[0065] The lower surface of the transition piece 5 is recessed upward to form a receiving groove 51, and the elastic pad 4 is received in the receiving groove 51. The four corners of the receiving groove 51 form process notches 52, and the process notches 52 are semicircular, which can facilitate the processing of the receiving groove 51 on the one hand, and prevent interference with the corners of the elastic pad 4 on the other hand.

[0066] The lower surface of the transition piece 5 is recessed upward to form a plurality of release grooves 53, and the elastic pad 4 covers the plurality of release grooves 53 in the horizontal direction. The release grooves 53 facilitate the deformation of the elastic pad 4 to leave enough deformation space. In some embodiments, the release grooves 53 may be formed in the receiving grooves 51, and in other embodiments, the receiving grooves 51 may not be provided, and only the release grooves 53 may be formed.

[0067] The limiting member 6 is formed with an exposed groove 62 along the horizontal direction for the locking tongue 2 to be inserted into and abut against the elastic pad 4 .

[0068] The driving assembly 3 includes a connecting plate 31 fixedly connected to the plurality of locking tongues 2, and a power source 32 for driving the connecting plate 31 to move in a horizontal direction. The power source 32 is arranged on the outer side of the locking tongue 2 away from the battery pack 200, and the power source frame 10 is used to place the power source 32. The power source frame 10 shields the front, back, left, right and bottom sides of the power source 32 to prevent the power source 32 from being polluted by rain, snow, dust and the like. In addition, the power source 32 is arranged on a side of the second baffle plate 9 away from the fixed plate 7, and a clearance groove 82 is provided on the second baffle plate 9 for inserting the driving member of the power source 32. Specifically, the power source 32 is arranged in two sets, which respectively drive the plurality of locking tongues 2 on one side of the battery pack 200.

[0069] The power source 32 is an electric push rod, and the electric push rod 32 draws power from the vehicle. The control elements of the two sets of electric push rods 32 are arranged on the vehicle, and the actions of the electric push rods are controlled by the vehicle or an external device connected to the vehicle. Generally, a 12V voltage power supply is configured on the vehicle, and a 24V power supply is configured on a heavy truck. Moreover, the power supply is independent of the battery pack 200. Even if the battery pack 200 is detached, the electric push rod can still be independently driven to complete the locking or unlocking action, that is, to complete the separation or fastening of the battery pack.

[0070] In this embodiment, for different transition members 5, limiting members 6, and drive assemblies 3, the following two embodiments are provided.

[0071] Embodiment 1:

[0072] As Figures 1 to 10 shown, in this embodiment, the number of the locking tongues 2 and the locking latches 1 is multiple. A plurality of the locking tongues 2 are correspondingly arranged with the same transition member 5, that is, only one transition member 5 is provided corresponding to the locking tongues 2 on one side. Each locking tongue 2 is correspondingly provided with two of the limiting members 6, and the two limiting members 6 are arranged at intervals to form an exposure groove 62. The transition member 5 is directly fixed on the vehicle, and the transition member 5 protrudes downwardly with a positioning shaft 54. The first baffle 8 is provided with a positioning hole 81 for cooperating with the positioning shaft 54, and the cooperation between the positioning shaft 54 and the positioning hole 81 makes it easier to dock during installation.

[0073] In this embodiment, the connecting plate 31 is arranged on the side of the locking tongue 2 away from the battery pack 200. The limiting member 6 protrudes toward the side away from the battery pack 200 with a guide wheel 61. The connecting plate 31 is provided with a guide groove 311 arranged in the front-back direction. When the locking tongue 2 is inserted and cooperated with the locking latch 1, the guide groove 311 slides relative to the guide wheel 61.

[0074] The locking tongue 2 includes a locking tongue body 24 and a locking tongue block 25 connecting the locking tongue body 24 and the connecting plate 31, and the locking tongue block 25 extends in the horizontal direction.

[0075] In this embodiment, the guide wheel 61 and the connecting plate 31 are arranged on the side, only occupying the side space, and the height of the supporting structure can be reduced in the vertical direction.

[0076] Embodiment 2:

[0077] As Figures 11 to 15As shown, in this embodiment, the number of the locking tongues 2 and the locking latches 1 is multiple. Each locking tongue 2 is correspondingly provided with two of the limiting members 6 and one transition plate. The two limiting members 6 are arranged at intervals to form an exposure groove 62. The limiting member 6 and the transition member 5 are integrally formed. In addition, in this embodiment, the multi-locking tongue linkage battery pack locking device 100 further includes a mounting plate 102 which is fixed on the vehicle and fixedly connected to a plurality of the transition members 5.

[0078] The connecting plate 31 is arranged above the transition member 5. The transition member 5 protrudes upwardly with a guiding block 55. The connecting plate 31 is provided with a guiding groove 312 arranged in the front-back direction. When the locking tongue 2 and the locking latch 1 are inserted and matched, the guiding groove 312 slides relative to the guiding block 55. Further, the guiding block 55 is fixedly connected to the mounting plate 102.

[0079] The locking tongue 2 includes a locking tongue body 24 and a locking tongue block 25 connecting the locking tongue body 24 and the connecting plate 31. The locking tongue block 25 extends in the height direction.

[0080] The connecting plate 31 includes a plurality of connecting blocks 313 fixedly connected in the horizontal direction. Each connecting block 313 is provided with one of the guiding grooves 312.

[0081] In this embodiment, the guiding block 55 and the connecting plate 31 are arranged at the top, only occupying the height space, and the width of the supporting structure can be reduced in the horizontal direction.

[0082] The above two embodiments can both achieve the effect of driving a plurality of the locking tongues 2 to move by one power source 32, reducing the cost.

[0083] In addition, in some embodiments, a safety valve in the vertical direction can be additionally provided. When unlocking is required, the safety valve must be opened vertically by an external force first. The safety valve is in a default downward pressure state under the action of the spring force. During battery swapping, when the battery swapping trolley rises, it pushes open this safety valve, and the vehicle can be locked or unlocked. Without this action, unlocking cannot be performed or locking cannot be completed properly.

[0084] The usage method of the multi-lock tongue linkage battery pack locking device 100 of the present utility model is as follows: When installing the battery pack 200, use a trolley with a lifting function to lift the battery pack 200 to the assembly position. At this time, the top end of the lock catch 1 just touches the elastic pad 4. The driving assembly 3 works to drive the lock tongue 2 to move in the front-back direction. The guiding section 21 first inserts under the lock catch 1. Continue to move the lock tongue 2. The lifting section 22 touches the lifting guide wheel 12. Continue to move the lock tongue 2. While the lifting section 22 moves, it drives the lifting guide wheel 12 to rise, thereby driving the entire lock catch 1 to move upward and squeeze the elastic pad 4. When the dead point section 23 abuts against the lifting guide wheel 12, at this time the elastic pad 4 reaches the maximum deformation, and the lock catch 1 is clamped between the lock tongue 2 and the transition plate and is difficult to shake, completing the installation of the battery pack 200. Removing the battery pack 200 is the reverse operation of the above steps and will not be elaborated here.

[0085] The multi-lock tongue linkage battery pack locking device 100 of the present utility model is set to realize the fixation of the battery pack 200 through the matching structure of the lock catch 1 and the lock tongue 2. Lifting the battery pack 200 can realize the installation of the battery pack 200. It has strong versatility and is easy to realize the automation of the loading and unloading of the battery pack 200. By setting the lock tongue 2 including a guiding section 21, a lifting section 22 and a dead point section 23, the elimination of height deviation, labor-saving lifting and height-direction locking of the lock catch 1 are respectively realized. By setting the lifting guide wheel 12, the friction on the lock tongue 2 is reduced; by setting the elastic pad 4, the influence of vibration can be reduced and the damping can be improved. By setting the connecting plate 31, a power source 32 can drive the movement of multiple lock tongues 2, reducing costs.

[0086] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should all be considered as the scope described in this specification.

[0087] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A battery pack locking device with multi-latch linkage is used to lock and fix the battery pack on a vehicle, and is characterized in that: The battery pack locking device with multiple locking tongues in linkage includes a lock catch fixed on the battery pack, a locking tongue arranged on the vehicle, and a driving component arranged on the vehicle for driving the locking tongue to move. The locking tongue is driven by the driving component to support the lock catch in the height direction. The numbers of the lock catch and the locking tongue are both multiple. The driving component includes a connecting plate fixedly connected to multiple locking tongues and a power source for driving the connecting plate to move horizontally.

2. The battery pack locking device with multi-lock tongue linkage according to claim 1, wherein: Multiple lock catches and locking tongues are respectively arranged on the left and right sides of the battery pack. The power source is arranged in two sets, respectively driving multiple locking tongues on one side of the battery pack.

3. The battery pack locking device with multi-lock tongue linkage according to claim 1, characterized in that: The battery pack locking device with multiple locking tongues in linkage further includes an elastic pad and a transition piece fixed on the vehicle. When the locking tongue and the lock catch are in abutment in the height direction, the upper end of the lock catch compresses the elastic pad, and the transition piece is arranged above the lock catch in the height direction and abuts against the elastic pad.

4. The battery pack locking device with multi-lock tongue linkage according to claim 3, characterized in that: The connecting plate is arranged above the transition piece. The transition piece protrudes upwardly with a guiding block, and the connecting plate is provided with a guiding groove arranged in the front-rear direction. When the locking tongue and the lock catch are in plug-in fit, the guiding groove slides relative to the guiding block.

5. The battery pack locking device with multi-lock tongue linkage according to claim 4, characterized in that: The locking tongue includes a locking tongue body and a locking tongue block connecting the locking tongue body and the connecting plate. The locking tongue block extends in the height direction.

6. The battery pack locking device with multi-lock tongue linkage according to claim 4, characterized in that: The connecting plate includes multiple connecting blocks fixedly connected in the horizontal direction. Each connecting block is provided with one guiding groove.

7. The multi-lock tongue linkage battery pack locking device according to claim 3, characterized in that: The battery pack locking device with multiple locking tongues in linkage further includes an elastic pad and a limiting piece arranged below the transition piece for abutting against the lock catch. The limiting piece is arranged below the elastic pad so that the elastic pad abuts between the limiting piece and the transition piece.

8. The battery pack locking device with multi-lock tongue linkage according to claim 7, characterized in that: The connecting plate is arranged on the side of the locking tongue away from the battery pack. The limiting piece protrudes toward the side away from the battery pack with a guiding wheel. The connecting plate is provided with a guiding groove arranged in the front-rear direction. When the locking tongue and the lock catch are in plug-in fit, the guiding groove slides relative to the guiding wheel.

9. The battery pack locking device with multi-lock tongue linkage according to claim 8, wherein: The locking tongue includes a locking tongue body and a locking tongue block connecting the locking tongue body and the connecting plate. The locking tongue block extends in the horizontal direction.

10. The battery pack locking device with multi-locking tongue linkage according to claim 1, characterized in that: The power source is arranged on the outer side of the locking tongue away from the battery pack. The battery pack locking device with multiple locking tongues in linkage further includes a power source bracket for placing the power source.

11. The battery pack locking device with multi-lock tongue linkage according to claim 1, characterized in that: The power source is an electric push rod. The electric push rod draws power from the vehicle. The control elements of the two sets of electric push rods are arranged on the vehicle, and the actions of the electric push rods are controlled by the vehicle or an external device connected to the vehicle.

12. An automobile, characterized in that: The vehicle includes a battery pack and the battery pack locking device with multiple locking tongues in linkage according to any one of claims 1-11.

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