Battery device, frame and vehicle

Abstract

The utility model discloses a battery device, a vehicle frame and a vehicle, the battery device is used for being detachably assembled with the vehicle frame, the vehicle frame comprises a spring bolt structure, the spring bolt structure is provided with a locking groove, the battery device comprises a structural beam, the structural beam is provided with a lock catch assembly, and the lock catch assembly is used for being matched with the spring bolt structure to achieve locking and unlocking; wherein the lock catch assembly comprises an insertion hole and a locking block capable of protruding out of the insertion hole or retreating from the insertion hole, and during locking, the locking block protrudes out of the insertion hole so as to be at least partially clamped in the locking groove; and during unlocking, the locking block retreats from the insertion hole so as to release the clamping connection with the locking groove. In the process of assembling the battery device to the frame, the spring bolt structure enters the insertion hole and extrudes the locking block to retreat from the insertion hole, and when the spring bolt structure and the lock catch assembly move to a preset position, the locking block can protrude out of the insertion hole and extend into the locking groove to complete locking, so that the assembling difficulty of the battery device and the frame is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of batteries, in particular to a battery device, a vehicle frame and a vehicle. BACKGROUND

[0002] With the development of new energy technology, batteries are widely used in driving devices such as new energy vehicles. In some new energy vehicle products, the battery needs to be replaced periodically.

[0003] Therefore, it is necessary to reduce the assembly difficulty of the battery without affecting the connection stability of the battery and the vehicle frame. CONTENT OF THE INVENTION

[0004] The present application provides a battery device, a vehicle frame and a vehicle, which can reduce the assembly difficulty of the battery device while improving the connection stability of the battery device and the vehicle frame under the self-weight of the battery device.

[0005] In a first aspect, the present application provides a battery device for detachable assembly with a vehicle frame, the vehicle frame comprising a lock tongue structure provided with a locking groove, and the battery device comprising a structural beam provided with a lock catch assembly for cooperating with the lock tongue structure to realize locking and unlocking; wherein the lock catch assembly comprises an insertion hole and a locking block capable of protruding out of or exiting the insertion hole, when locking, the locking block protrudes out of the insertion hole to be at least partially clamped in the locking groove; when unlocking, the locking block exits the insertion hole to release the clamping with the locking groove.

[0006] In the battery device of the present application, during assembly with the vehicle frame, the lock tongue structure and the lock catch assembly are close to each other, the lock tongue structure enters the insertion hole and extrudes the locking block to exit the insertion hole, when the lock tongue structure and the lock catch assembly move to a preset position, the locking block can protrude out of the insertion hole and extend into the locking groove to complete the locking, thereby reducing the assembly difficulty of the battery device and the vehicle frame. At the same time, under the gravity of the battery device, the locking block and the locking groove can be kept in abutment to improve the assembly stability of the battery device and the vehicle frame.

[0007] In some embodiments, the lock catch assembly comprises a resilient member and a receiving hole extending in a first direction, one end of the resilient member is fixedly connected to the receiving hole, the locking block is slidably arranged in the receiving hole and connected to the other end of the resilient member, and the resilient member is extendable and retractable in the first direction.

[0008] In these optional embodiments, the receiving hole can allow the locking block to reciprocate in the first direction while limiting the movement range of the locking block, and at the same time, the resilient member can deform in response to the position change of the locking block, the reset elastic force generated by the deformation can drive the locking block to exit the insertion hole or extend into the insertion hole.

[0009] In some embodiments, when locking, the elastic member is used to be compressed in the first direction when the locking tongue structure is inserted into the insertion hole by a first predetermined distance, so as to make the locking block exit the insertion hole; the elastic member is also used to rebound at least partially in the first direction when the locking tongue structure is inserted into the insertion hole by a second predetermined distance, so as to make the locking block insert into the locking groove, and the first predetermined distance is smaller than the second predetermined distance.

[0010] In these optional embodiments, during the process of assembling the battery device to the frame, the locking tongue structure moves in the insertion hole and extrudes the locking block to make it exit the insertion hole, and the elastic member is extruded to deform during the process of the locking block exiting the insertion hole, so as to generate a reset elastic force that makes the locking block have a movement tendency of protruding from the insertion hole, so that the locking groove is open to the locking block when the locking tongue structure is inserted by the second predetermined distance, and the locking block can insert into the locking groove to complete the locking under the action of the reset elastic force.

[0011] In some embodiments, the locking block is provided in plurality, and the plurality of locking blocks are distributed in the circumferential direction of the insertion hole, and the elastic member corresponds to the locking block one by one.

[0012] In these optional embodiments, when locking, the plurality of locking blocks can all protrude from the insertion hole and penetrate into the locking groove, which can enhance the connection stability between the locking tongue structure and the lock assembly, and can also disperse the gravity load applied by the battery device to the frame, so as to reduce the probability of deformation and damage of the locking tongue structure.

[0013] In some embodiments, the end surface of the locking block facing the insertion hole is a bevel, and the bevel intersects with the hole depth direction of the insertion hole at an acute angle.

[0014] In these optional embodiments, during the process of assembling the battery device to the frame, the sliding contact between the locking block and the locking tongue structure is linear contact, which reduces the sliding friction between the lock assembly and the locking tongue structure.

[0015] In some embodiments, the insertion hole includes an insertion port, and the distance between the position on the bevel closer to the insertion port and the center axis of the insertion hole is greater.

[0016] In these optional embodiments, if the locking tongue structure fails to successfully lock when being inserted into the insertion hole by the second predetermined distance, the locking tongue structure can continue to move along the bevel, so as to reduce the probability of the locking block being stuck in the locking groove. At the same time, under the action of the gravity of the battery device, the locking tongue structure can be guided to fall back to the preset position by the bevel 4221, so as to make the locking block smoothly extend into the locking groove and be coupled to achieve locking.

[0017] In some embodiments, the battery device further includes an unlocking member movably mounted to the lock assembly in the first direction and connected with the locking block, and the unlocking member is used to move in the first direction to drive the locking block to exit the locking groove when unlocking.

[0018] In these alternative embodiments, the elastic force of the elastic member can be overcome by moving the unlocking member to drive the locking block out of the locking groove, so as to complete the unlocking of the battery device and achieve the quick separation of the battery device from the frame.

[0019] In some embodiments, the unlocking member is rotatably connected with the lock catch assembly, and the unlocking member swings away from the latch structure to drive the locking block out of the locking groove.

[0020] In these alternative embodiments, when the unlocking member swings, the unlocking member moves in the first direction while driving the locking block to have a movement trend away from the latch structure in the axial direction of the latch structure, which can partially offset the gravity of the battery device, thereby reducing the friction between the locking block and the latch structure.

[0021] In the second aspect, the embodiments of the present application provide a frame for detachably assembling with a battery device, the battery device comprising a latch structure, the latch structure being provided with a locking groove, the frame being provided with a lock catch assembly, the lock catch assembly being used to cooperate with the latch structure to achieve locking and unlocking; wherein the lock catch assembly comprises an insertion hole and a locking block capable of protruding out of or exiting the insertion hole, when locked, the locking block protrudes out of the insertion hole to be at least partially clamped in the locking groove; when unlocked, the locking block exits the insertion hole to release the clamping with the locking groove.

[0022] In some embodiments, the lock catch assembly comprises an elastic member and a receiving hole extending in the first direction, one end of the elastic member being fixedly connected to the receiving hole, the locking block being slidably arranged in the receiving hole and connected to the other end of the elastic member, the elastic member being retractable in the first direction.

[0023] In some embodiments, when locked, the elastic member is used to be compressed in the first direction when the latch structure is inserted into the insertion hole by a first predetermined distance, so as to drive the locking block to exit the insertion hole; the elastic member is also used to rebound at least partially in the first direction when the latch structure is inserted into the insertion hole by a second predetermined distance, so as to drive the locking block to be inserted into the locking groove, the first predetermined distance being smaller than the second predetermined distance.

[0024] In some embodiments, the locking block is provided in plurality, the plurality of locking blocks being distributed in the circumferential direction of the insertion hole, and the elastic member corresponds to the locking block one by one.

[0025] In some embodiments, the end surface of the locking block facing the insertion hole is a bevel, the bevel intersecting with the hole depth direction of the insertion hole at an acute angle.

[0026] In some embodiments, the insertion hole comprises an insertion port, and the distance between the position on the bevel closer to the insertion port and the center axis of the insertion hole is greater.

[0027] In some embodiments, the frame further comprises an unlocking member movably mounted to the lock catch assembly along the first direction and connected to the locking block, the unlocking member being configured to move along the first direction to drive the locking block out of the locking slot when unlocking.

[0028] In a third aspect, the embodiments of the present application provide a vehicle, which comprises the frame and the battery device provided by any of the embodiments of the first aspect, or the vehicle comprises the battery device and the frame provided by any of the embodiments of the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0029] The features, advantages, and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0030] Figure 1 FIG. 1 is a structural schematic diagram of a vehicle according to an embodiment of the present application;

[0031] Figure 2 FIG. 2 is a structural schematic diagram of a battery device according to an embodiment of the present application;

[0032] Figure 3 FIG. 3 is a connection schematic diagram of a battery device and a frame according to an embodiment of the present application;

[0033] Figure 4 FIG. 4 is a cross-sectional schematic diagram of a connection between a battery device and a frame according to an embodiment of the present application; Figure 3

[0034] Figure 5 FIG. 5 is a connection schematic diagram of a battery device and a frame according to another embodiment of the present application;

[0035] Figure 6 FIG. 6 is a connection schematic diagram of a battery device and a frame according to another embodiment of the present application;

[0036] Figure 7 FIG. 7 is a connection schematic diagram of a frame and a battery device according to an embodiment of the present application.

[0037] In the drawings, the drawings are not necessarily drawn according to the actual proportions.

[0038] Specific reference signs in the drawings are as follows:

[0039] 1000, vehicle;

[0040] 100, battery device; 200, controller; 300, motor;

[0041] 10, box body; 11, first box body part; 12, second box body part; 20, battery cell;

[0042] 410, locking tongue structure; 411, main body part; 412, locking slot; 4121, stop surface; 4122, first surface; 413, guide part;​

[0043] 420, lock catch assembly; 421, accommodating hole; 422, locking block; 4221, inclined surface; 423, elastic member; 424, insertion hole; 430, unlocking member;

[0044] The first direction X. DETAILED DESCRIPTION

[0045] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0047] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly and specifically limited.

[0048] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0049] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0050] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0051] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0052] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0053] With the update iteration of automobile products, especially the popularization of electric vehicles and new energy vehicles, batteries are increasingly applied in automobile products. In some automobile products, the battery needs to be replaced regularly to ensure the normal operation of the automobile and prolong the service life of the automobile. Therefore, the battery needs to be assembled to the automobile frame with the help of components such as quick change structure.

[0054] For example, some automobile products connect the battery and the frame through bolts. This connection structure not only has the disadvantage of long battery replacement time, but also is prone to wear and tear during high-frequency disassembly and assembly, thereby causing connection failure and other accidents, affecting the safety of the driver and passengers.

[0055] In the related art, some quick change structures realize the locking of the battery to the automobile frame through the cooperation of the lock block and the lock groove. However, this structure still needs to be driven into the lock groove through pressing or other operations to realize fixation, and the assembly difficulty still needs to be further improved.

[0056] In view of the above problems, the embodiments of the present application provide a battery device, which can reduce the assembly difficulty of the battery device to the frame. At the same time, the assembly stability is improved by the gravity of the battery device.

[0057] The embodiments of the present application are not limited to the battery device, but also applicable to the frame assembled with the battery device, and the vehicle assembled with the battery device.

[0058] In some embodiments of the present application, the battery device can not only serve as the operating power source of the vehicle, but also serve as the driving power source of the vehicle, replacing or partially replacing the fuel or natural gas to provide driving power for the vehicle.

[0059] In some embodiments of the present application, please refer to Figure 1 , Figure 1 A structural schematic diagram of a vehicle 1000 is provided for some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or a range extended vehicle, etc. The battery device 100 is arranged in the interior of the vehicle 1000, and the battery device 100 can be arranged at the bottom, the head or the tail of the vehicle 1000. Specifically, the vehicle 1000 further comprises a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the working power demand of the vehicle 1000 during starting, navigation and driving.

[0060] In some embodiments of the present application, the battery device 100 can comprise one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly can comprise a plurality of battery cells connected in series, in parallel or in a mixed manner by a current collection component. Exemplarily, the battery cell assembly can be a battery module, and the battery module is formed by arranging and fixing a plurality of battery cells to form an independent module, for example, the battery module can be bundled by a cable tie.

[0061] In some embodiments of the present application, the battery device 100 can be a battery pack, and the battery pack comprises a box body and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the box body.

[0062] Please refer to Figure 2 , Figure 2 An exploded structural schematic diagram of the battery device 100 is provided for some embodiments of the present application, and the battery device 100 comprises a box body 10 and a battery cell 20, and the box body is used to accommodate the battery cell 20.

[0063] In some embodiments of the present application, the box 10 can include a first box part 11 and a second box part 12, the second box part 12 being mutually covered with the first box part 11, and the second box part 12 and the first box part 11 together defining a containing part for containing the battery monomer 20. The first box part 11 can be a hollow structure with one end open, and the second box part 12 can be a plate structure, which is covered on the open side of the first box part 11 to form the box 10 with the containing part. Alternatively, the second box part 12 and the first box part 11 can also be hollow structures with one side open, and the open side of the second box part 12 is covered on the open side of the first box part 11 to form the box 10 with the containing part. It should be understood that the second box part 12 and the first box part 11 can be in various shapes, such as a cylinder, a cuboid, etc.

[0064] Referring to Figures 3 to 6 , Figure 3 a connection diagram of a battery device and a frame according to an embodiment of the present application; Figure 4 a connection diagram of a battery device and a frame according to an embodiment of the present application; Figure 3 a cross-sectional view of a connection between the battery device and the frame shown in FIG. 8; Figure 5 a connection diagram of a battery device and a frame according to an embodiment of the present application; Figure 6 a connection diagram of a battery device and a frame according to another embodiment of the present application.

[0065] In a first aspect, the embodiments of the present application provide a battery device, which is used for detachable assembly with a frame. The frame includes a lock tongue structure 410, which is provided with a locking groove 412. The battery device includes a structural beam and at least one battery monomer 20, and the battery monomer 20 is fixed by the structural beam. The structural beam is provided with a lock catch assembly 420, which can be used in cooperation with the lock tongue structure 410 to achieve locking and unlocking. The lock catch assembly 420 includes an insertion hole 424 and a locking block 422 which can protrude out of or exit from the insertion hole 424. When locking, the locking block 422 protrudes out of the insertion hole 424 to be at least partially clamped in the locking groove 412; when unlocking, the locking block 422 exits from the insertion hole 424 to release the clamping with the locking groove 412.

[0066] Referring to Figure 4 , the locking block 422 moves in a first direction (for example, the X direction in the figure) to protrude out of or exit from the insertion hole 424.

[0067] Optionally, the battery device 100 is arranged at the bottom of the vehicle 1000. For example, in some embodiments, the battery device 100 is located below the chassis of the vehicle 1000 and is mounted on the frame. Of course, the present application is also applicable to the mounting and fixing of the battery device 100 to the front compartment or rear compartment of the frame.

[0068] Thus, during the process of assembling the battery device 100 to the frame, the lock tongue structure 410 and the lock catch assembly 420 are close to each other, the lock tongue structure 410 enters the insertion hole 424 and extrudes the lock block 422 to exit the insertion hole 424 in the first direction, when the lock tongue structure 410 and the lock catch assembly 420 move to the preset position, the lock block 422 can protrude from the insertion hole 424 and extend into the lock slot 412 to complete the locking, which reduces the assembly difficulty of the battery device 100 and the frame. At the same time, under the gravity of the battery device 100, the lock block 422 and the lock slot 412 can be kept in abutment to improve the assembly stability of the battery device 100 and the frame.

[0069] The following embodiments are for convenient description, and the battery device 100 is installed at the bottom of the vehicle 1000 and assembled to the frame as an example.

[0070] According to some embodiments of the present application, the lock catch assembly 420 comprises an elastic member 423 and a receiving hole 421 extending in the first direction, the elastic member 423 is located between the lock block 422 and the receiving hole 421, the lock block 422 is slidably arranged in the receiving hole 421, and the elastic member 423 is retractable in the first direction.

[0071] Optionally, the receiving hole 421 is directly formed in the structural beam, or the battery device 100 comprises a receiving structure connected with the structural beam, and the receiving structure is provided with the receiving hole 421.

[0072] Optionally, the elastic member 423 is fixedly connected with the receiving hole 421 at one end in the first direction, and connected with the lock block 422 at the other end.

[0073] Optionally, the elastic member 423 is abutted between the lock block 422 and the receiving hole 421.

[0074] Thus, the receiving hole 421 can limit the reciprocating movement of the lock block 422 in the first direction and limit the movement range of the lock block 422. The elastic member 423 can be deformed in response to the position change of the lock block 422, and the reset elastic force generated by the deformation can drive the lock block 422 to exit or extend into the insertion hole 424.

[0075] According to some embodiments of the present application, when locking, the elastic member 423 is compressed in the first direction when the lock tongue structure 410 is inserted into the insertion hole 424 by a first predetermined distance, so that the lock block 422 exits the insertion hole 424; the elastic member 423 is also used to rebound at least part of the length in the first direction when the lock tongue structure 410 is inserted into the insertion hole 424 by a second predetermined distance, so that the lock block 422 is inserted into the lock slot 412. Wherein, the first predetermined distance is less than the second predetermined distance.

[0076] Optionally, please refer to Figure 5The elastic member 423 is a compression spring. During the process of assembling the battery device 100 to the frame, the lock tongue structure 410 pushes the locking block 422 to compress the spring, and the spring generates a restoring force to push the locking block 422 to move close to the lock tongue structure 410.

[0077] Optionally, the elastic member 423 is an elastic component with a restoring function, such as a rubber pad or a spring leaf.

[0078] Thus, during the process of assembling the battery device 100 to the frame, the lock tongue structure 410 continues to move in the insertion hole 424 from the first predetermined distance to a second movement distance, the lock tongue structure 410 forms a compression on the locking block 422 to make the locking block 422 exit the insertion hole 424, and the locking block 422 deforms the elastic member 423 during the process of exiting the insertion hole 424 to generate a restoring force to make the locking block 422 have a movement trend of protruding from the insertion hole 424, so that the lock tongue structure 410 is inserted into the second predetermined distance, that is, the lock tongue structure 410 and the lock catch assembly 420 move to the preset position, the locking groove 412 is open to the locking block 422, and the locking block 422 can enter the locking groove 412 under the action of the restoring force to complete self-locking.

[0079] Optionally, in some embodiments, the elastic member 423 is still in a compressed state after the locking block 422 enters the locking groove 412, and the locking block 422 is in abutment with the locking groove 412 under the action of the restoring force to improve the locking stability of the battery device.

[0080] According to some embodiments of the present application, the locking block 422 is provided in plurality, and the elastic member 423 is provided in plurality in one-to-one correspondence with the locking block 422.

[0081] Optionally, the plurality of locking blocks 422 are uniformly and spacedly distributed along the circumference of the insertion hole 424 to improve the locking stability. For example, the locking block 422 is provided in two, and the two locking blocks 422 are arranged on two sides of the insertion hole 424 in the first direction, or the locking block 422 is provided in three, and the adjacent two locking blocks 422 are arranged at an interval of 120°.

[0082] Optionally, the locking groove 412 is provided as an annular groove formed along the circumference of the lock tongue structure 410, and the plurality of locking blocks 422 are all inserted into the annular locking groove 412 and are in abutment with the annular locking groove 412.

[0083] Optionally, the locking groove 412 is provided in plurality in one-to-one correspondence with the locking block 422, and the plurality of locking grooves 412 are spacedly arranged along the circumference of the lock tongue structure 410 to cooperate with the plurality of locking blocks 422 to achieve locking.

[0084] Therefore, the design that the plurality of locking blocks 422 extend into the locking groove 412 can improve the fault tolerance of the battery device locking. Even if some of the locking blocks 422 are stuck or cannot successfully extend into the locking groove 412 due to other unexpected conditions, at least one of the locking blocks 422 can cooperate with the lock tongue structure 410 to achieve locking. In addition, the plurality of locking blocks 422 distributed along the circumference of the lock tongue structure 410 can also disperse the gravity load applied by the battery device 100 to the frame, so as to reduce the probability of deformation and damage of the lock tongue structure 410 under a large load, and prolong the service life of the lock catch assembly 420 and the lock tongue structure 410.

[0085] According to some embodiments of the present application, the end surface of the locking block 422 facing the insertion hole 424 is an inclined surface 4221, and the inclined surface 4221 intersects the hole depth direction of the insertion hole 424 at an acute angle.

[0086] The inclined surface 4221 refers to any position of the surface intersecting the hole depth direction of the insertion hole 424 at an acute angle. Alternatively, in some embodiments, the inclined surface 4221 is provided as an inclined plane; or in other embodiments, the inclined surface 4221 is provided as an arc surface, and any position of the arc surface has a tangent direction intersecting the hole depth direction of the insertion hole 424 at an acute angle.

[0087] Therefore, during the process of assembling the battery device 100 to the frame, the surface contact between the inclined surface 4221 and the relative sliding surface of the lock tongue structure 410 is changed to line contact, reducing the sliding friction between the lock catch assembly 420 and the lock tongue structure 410.

[0088] According to some embodiments of the present application, the insertion hole 424 includes an insertion port, and the position on the inclined surface 4221 closer to the insertion port has a greater distance from the center axis of the insertion hole 424.

[0089] The insertion port refers to an open port for the lock tongue structure 410 to enter the insertion hole 424 therefrom, and the insertion port is located at one end of the insertion hole 424 facing the frame.

[0090] Therefore, when the lock tongue structure 410 is inserted into the insertion hole 424 by a second predetermined distance but fails to successfully lock, the lock tongue structure 410 can continue to move along the inclined surface 4221, thereby reducing the probability that the locking block 422 is stuck in the locking groove 412. Under the action of gravity of the battery device 100, the lock tongue structure 410 can be guided by the inclined surface 4221 to fall back to the preset position, so that the locking block 422 smoothly extends into the locking groove 412 and is coupled to complete the locking.

[0091] According to some embodiments of the present application, the battery device 100 further includes an unlocking piece 430 movably mounted in the accommodation hole 421 and connected with the locking block 422 in a first direction, and the unlocking piece 430 is used to move in the first direction to drive the locking block 422 to exit the locking groove 412 when unlocking.

[0092] Optionally, the battery device 100 further comprises an unlocking driving member connected with the unlocking member 430 and configured to drive the unlocking member 430 to move to realize unlocking. The unlocking driving member can cooperate with the unlocking member 430 to realize the separation of the battery device 100 from the vehicle frame, which is suitable for application scenarios such as new energy vehicle battery replacement.

[0093] Optionally, the unlocking member 430 is provided with a handle or other external member to facilitate the operator to drive the unlocking member 430 to move in the first direction through the external member to realize unlocking.

[0094] Thus, the unlocking member 430 is driven to move and overcome the restoring elastic force of the elastic member 423 to drive the locking block 422 to move away from the locking tongue structure 410 and exit the locking groove 412, thereby realizing unlocking and quickly separating the battery device 100 from the vehicle frame.

[0095] According to some embodiments of the present application, the unlocking member 430 is rotatably connected with the accommodating hole 421, and the unlocking member 430 swings in a direction away from the locking tongue structure 410 to make the locking block 422 exit the locking groove 412.

[0096] Optionally, the hinge point of the unlocking member 430 and the accommodating hole 421 is higher than the locking block 422. During the process of driving the unlocking member 430 to swing, the unlocking member 430 moves in the first direction while driving the locking block 422 to have a movement trend in the axial direction of the locking tongue structure 410 away from the locking tongue structure 410, which can partially offset the gravity of the battery device 100, thereby reducing the friction between the locking block 422 and the locking tongue structure 410, facilitating the unlocking member 430 to exit the locking groove 412 to realize unlocking.

[0097] Optionally, the locking block 422 is located on the side of the unlocking member 430 close to the hinge point. When the unlocking member 430 drives the locking block 422 to move in the first direction, the stroke of the unlocking member 430 is greater than that of the locking block 422, so as to reduce the situation that the locking block 422 is separated from the locking groove 412 to cause false unlocking due to the false touch of the unlocking member 430.

[0098] Optionally, the locking block 422 is located on the side of the unlocking member 430 away from the hinge point. When the unlocking member 430 drives the locking block 422 to move in the first direction, the stroke of the unlocking member 430 is less than that of the locking block 422, so as to facilitate the operator to drive the locking block 422 to overcome the restoring elastic force of the elastic member 423 and exit the locking groove 412 to realize unlocking.

[0099] Thus, the stroke of the unlocking member 430 and the stroke of the locking block 422 form an amplification relationship or a reduction relationship, thereby adapting to various application scenarios.

[0100] In a second aspect, the embodiments of the present application provide a vehicle frame, which is used to detachably assemble with a battery device 100. The battery device 100 comprises a structural beam and at least one battery cell 20, and the battery cell 20 is fixed by the structural beam. The structural beam is provided with a lock tongue structure 410. The vehicle frame comprises a lock catch assembly 420, which is used in cooperation with the lock tongue structure 410 to realize locking or unlocking. The lock catch assembly comprises an insertion hole 424 and a locking block capable of protruding out of or withdrawing from the insertion hole 424. When locking, the locking block protrudes out of the insertion hole 424 to be at least partially clamped in a locking groove. When unlocking, the locking block withdraws from the insertion hole 424 to release the clamping in the locking groove.

[0101] Optionally, the lock tongue structure 410 is separately formed and connected with the structural beam, or the structural beam directly forms the lock tongue structure 410.

[0102] Please refer to Figure 7 According to some embodiments of the present application, the lock catch assembly 420 comprises an elastic member 423 and a receiving hole 421 extending in a first direction. The elastic member 423 is located between the locking block 422 and the receiving hole 421. The locking block 422 is slidably arranged in the receiving hole 421, and the elastic member 423 is retractable in the first direction.

[0103] Optionally, the receiving hole 421 is directly formed in the vehicle frame, or the vehicle frame comprises a receiving structure member, and the receiving structure member is provided with the receiving hole 421.

[0104] According to some embodiments of the present application, when locking, the elastic member 423 is used to be compressed in the first direction when the lock tongue structure 410 is inserted into the insertion hole 424 by a first predetermined distance, so as to make the locking block 422 withdraw from the insertion hole 424. The elastic member 423 is also used to rebound at least partially in the first direction when the lock tongue structure 410 is inserted into the insertion hole 424 by a second predetermined distance, so as to make the locking block 422 insert into the locking groove 412. The first predetermined distance is smaller than the second predetermined distance.

[0105] According to some embodiments of the present application, the locking block 422 is provided in plurality, and the plurality of locking blocks 422 are distributed in a circumferential direction of the insertion hole 424. The elastic member 423 is provided in plurality in one-to-one correspondence with the locking blocks 422.

[0106] According to some embodiments of the present application, an end surface of the locking block 422 facing the insertion hole 424 is a bevel surface 4221, which intersects with a hole depth direction of the insertion hole 424 at an acute angle.

[0107] The slope 4221 refers to any position of the surface intersecting the hole depth direction of the insertion hole 424 at an acute angle. Optionally, in some embodiments, the slope 4221 is arranged as an inclined plane; or in other embodiments, the slope 4221 is arranged as an arc surface, any position of the arc surface intersecting the hole depth direction of the insertion hole 424 at an acute angle.

[0108] According to some embodiments of the present application, the insertion hole 424 includes an insertion port, and the position on the slope 4221 closer to the insertion port is farther away from the center axis of the insertion hole 424.

[0109] The insertion port refers to an open port for the lock tongue structure 410 to enter the insertion hole 424 therefrom, and the insertion port is located at one end of the insertion hole 424 facing the battery device 100.

[0110] According to some embodiments of the present application, the frame further includes an unlocking piece 430 movably mounted to the accommodation hole 421 along the first direction and connected with the locking block 422, and the unlocking piece 430 is used to move along the first direction to drive the locking block 422 to exit the locking groove 412 when unlocking.

[0111] According to some embodiments of the present application, the lock tongue structure 410 includes a body portion 411, a locking groove 412 and a guide portion 413 distributed along the axial direction of the lock tongue structure 410, the locking groove 412 is located between the body portion 411 and the guide portion 413, and the locking groove 412 includes a stop surface 4121 extending from the groove opening to the groove bottom, and the stop surface 4121 is in abutting contact with the locking block 422 under the gravity of the battery device 100.

[0112] The body portion 411 is located at one end of the lock tongue structure 410 away from the battery device 100, and the body portion 411 is a structure capable of slidingly fitting relative to the lock catch assembly 420 during the mounting of the battery device 100 on the frame.

[0113] The locking groove 412 is a blind groove structure extending inwardly relative to the body portion 411, and the locking groove 412 is used to accommodate the locking block 422 in the locked state to limit the continued movement of the lock tongue structure 410 relative to the lock catch assembly 420 in the height direction.

[0114] The guide portion 413 is located at one end of the lock tongue structure 410 close to the battery device 100, and the locking block 422 of the lock catch assembly 420 moves along the guide portion 413 during the mounting of the battery device 100 on the frame, and the guide portion 413 can guide the locking block 422 to smoothly enter the locking groove 412.

[0115] Thus, the locking block 422 can smoothly extend into the locking groove 412 under the action of the guide portion 413, and abut against the stop surface 4121 under the action of the gravity of the battery device 100, thereby reducing the unintended movement between the locking block 422 and the locking tongue structure 410, and further improving the connection stability of the battery device 100 and the vehicle frame.

[0116] According to some embodiments of the present application, the distance between the end of the guide portion 413 and the stop surface 4121 gradually decreases in the direction from the locking tongue structure 410 to the locking buckle assembly 420.

[0117] Optionally, the guide portion 413 has an inclined plane, and the distance between the inclined plane and the stop surface 4121 gradually decreases in the direction from the locking tongue structure 410 to the locking buckle assembly 420.

[0118] Further optionally, the inclination of the inclined surface 4221 is different from the inclination of the guide portion 413 to reduce the sliding friction.

[0119] Optionally, the guide portion 413 has a smooth curved surface, and the distance between the smooth curved surface and the stop surface 4121 gradually decreases in the direction from the locking tongue structure 410 to the locking buckle assembly 420.

[0120] Thus, during the process of mounting the battery device 100 on the vehicle frame, the locking tongue structure 410 and the locking buckle assembly 420 are close to each other, the guide portion 413 gradually pushes the locking block 422 away from the initial position and has greater reset kinetic energy, so that the locking tongue structure 410 and the locking buckle assembly 420 can be smoothly reset and deeply locked inward to complete self-locking when moving to the preset position.

[0121] According to some embodiments of the present application, the locking groove 412 further includes a first surface 4122 facing the stop surface 4121, and the distance between the first surface 4122 and the stop surface 4121 gradually increases in the direction from the locking tongue structure 410 to the locking buckle assembly 420.

[0122] Optionally, the first surface 4122 can be fitted with the inclined surface 4221 of the locking block 422 to improve the locking stability of the locking block 422 and the locking tongue structure 410.

[0123] Optionally, referring to Figure 6 , the first surface 4122 is connected with the stop surface 4121, and the locking block 422 extends into the locking groove 412 under the guidance of the first surface 4122 and is fitted with the first surface 4122 and the stop surface 4121 to improve the locking stability.

[0124] Optionally, the locking groove 412 further includes a bottom surface, and the bottom surface close to the side of the battery device 100 is connected with the stop surface 4121, and the bottom surface away from the side of the battery device 100 is connected with the first surface 4122.

[0125] Thus, when the lock tongue structure 410 and the lock catch assembly 420 miss the preset position, the locking block 422 slides down along the first surface 4122 under the gravity of the battery device 100, the first surface 4122 can continue to guide the locking block 422 to extend into the locking groove 412 and abut against the stop surface 4121 to complete self-locking, thereby reducing the probability of the locking block 422 being stuck in the locking groove 412, improving the lock fault tolerance and reducing the assembly difficulty of the battery device 100 and the vehicle frame.

[0126] According to some embodiments of the present application, in a projection plane perpendicular to the axial direction of the lock tongue structure 410, the orthographic projection of the lock tongue structure 410 is a circle.

[0127] It should be understood that the circle includes a true circle or an approximate circle, such as an ellipse or other smooth closed curves without corners.

[0128] Thus, at least the main body part 411 of the lock tongue structure 410 is arranged in a cylindrical structure, thereby making the process of the lock tongue structure 410 and the lock catch assembly 420 moving closer to or farther away from each other more smooth, and reducing the probability of being stuck during the relative movement of the lock tongue structure 410 and the lock catch assembly 420.

[0129] According to some other embodiments of the present application, in a projection plane perpendicular to the axial direction of the lock tongue structure 410, the orthographic projection of the lock tongue structure 410 is a regular polygon, and the main body part 411 is a regular polygonal prism structure.

[0130] According to some other embodiments of the present application, in a projection plane perpendicular to the axial direction of the lock tongue structure 410, the orthographic projection of the lock tongue structure 410 is a polygon, and the main body part 411 extends along the height direction and is in sliding cooperation with the lock catch assembly 420.

[0131] In a third aspect, the embodiments of the present application provide a vehicle 1000, which comprises a vehicle frame and the battery device provided in any of the embodiments of the first aspect, or the vehicle 1000 comprises the battery device and the vehicle frame provided in any of the embodiments of the second aspect.

[0132] Please refer to Figures 3 to 6 The embodiments of the present application provide a battery device, which comprises a lock catch assembly 420 used in cooperation with a lock tongue structure 410 arranged on a vehicle frame. The lock tongue structure 410 comprises a main body part 411, a locking groove 412 and a guide part 413 arranged along the axial direction thereof, the lock catch assembly 420 comprises an insertion hole 424, a receiving hole 421, a locking block 422 movable in a first direction, and an unlocking member 430 connected with the locking block 422, and the locking block 422 and the receiving hole 421 are provided with an elastic member 423.

[0133] The locking tongue structure 410 is inserted into the insertion hole 424 and slides relative to the lock catch assembly 420. When the lock catch assembly 420 and the locking tongue structure 410 are close to each other, the guide portion 413 pushes the locking block 422 and presses the elastic member 423, and the locking block 422 slides along the guide portion 413. When the locking tongue structure 410 moves to a second predetermined distance, the locking block 422 extends into the locking groove 412 under the restoring force of the elastic member 423, and the locking block 422 is in abutting contact with the stop surface 4121 of the locking groove 412 under the gravity of the lock catch assembly 420, so as to realize the locking of the locking tongue structure 410 and the lock catch assembly 420.

[0134] When unlocking is needed, the unlocking member 430 is driven to swing to drive the locking block 422 to exit the locking groove 412 in a first direction and exit the insertion hole 424. After the locking block 422 exits the locking groove 412, the locking tongue structure 410 slides out of the lock catch assembly 420 from the insertion hole 424 under the gravity of the lock catch assembly 420 to realize unlocking.

[0135] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device for detachable assembly with a vehicle frame, characterized by, The frame comprises a lock tongue structure, the lock tongue structure is provided with a locking groove, the battery device comprises a structural beam, the structural beam is provided with a lock catch assembly, the lock catch assembly is used for cooperating with the lock tongue structure to realize locking and unlocking; The lock catch assembly comprises an insertion hole and a locking block capable of protruding from or exiting the insertion hole, when locking, the locking block protrudes from the insertion hole to be at least partially clamped in the locking groove; when unlocking, the locking block exits the insertion hole to release the clamping with the locking groove.

2. The battery device of claim 1, wherein The lock catch assembly comprises an elastic member and a containing hole extending in a first direction, one end of the elastic member is fixedly connected to the containing hole, the locking block is slidably arranged in the containing hole and connected to the other end of the elastic member, and the elastic member is retractable in the first direction.

3. The battery device of claim 2, wherein, When locking, the elastic member is used to be compressed in the first direction when the lock tongue structure is inserted into the insertion hole by a first predetermined distance, so that the locking block exits the insertion hole; the elastic member is also used to rebound at least partially in the first direction when the lock tongue structure is inserted into the insertion hole by a second predetermined distance, so that the locking block is inserted into the locking groove, and the first predetermined distance is less than the second predetermined distance.

4. The battery device of claim 2, wherein The locking block is provided in plurality, and the plurality of locking blocks are distributed in a circumferential direction of the insertion hole, and the elastic member corresponds to the locking block one by one.

5. The battery device of claim 2, wherein An end surface of the locking block facing the insertion hole is a bevel, and the bevel intersects with a hole depth direction of the insertion hole at an acute angle.

6. The battery device of claim 5, wherein, The insertion hole comprises an insertion port, and the closer the position on the bevel to the insertion port, the greater the distance between the position and the center axis of the insertion hole.

7. The battery device of claim 2, wherein The battery device further comprises an unlocking member movably mounted on the lock catch assembly in the first direction and connected to the locking block, and the unlocking member is used to move in the first direction to drive the locking block to exit the locking groove when unlocking.

8. The battery device of claim 7, wherein, The unlocking member is rotatably connected to the lock catch assembly, and the unlocking member is used to swing away from the lock tongue structure to make the locking block exit the locking groove when unlocking.

9. A vehicle frame, characterized by The frame is used for detachably assembling a battery device, the battery device comprises a lock tongue structure, the lock tongue structure is provided with a locking groove, the frame is provided with a lock catch assembly, the lock catch assembly is used for cooperating with the lock tongue structure to realize locking and unlocking; The lock catch assembly comprises an insertion hole and a locking block capable of protruding from or exiting the insertion hole, when locking, the locking block protrudes from the insertion hole to be at least partially clamped in the locking groove; when unlocking, the locking block exits the insertion hole to release the clamping with the locking groove.

10. Frame according to claim 9, characterized in that The lock catch assembly comprises an elastic member and a containing hole extending in a first direction, one end of the elastic member is fixedly connected to the containing hole, the locking block is slidably arranged in the containing hole and connected to the other end of the elastic member, and the elastic member is retractable in the first direction.

11. Frame according to claim 10, characterized in that When locking, the elastic member is compressed in the first direction when the locking tongue structure is inserted into the insertion hole by a first predetermined distance, so as to make the locking block exit the insertion hole; the elastic member is rebounded by at least a partial length in the first direction when the locking tongue structure is inserted into the insertion hole by a second predetermined distance, so as to make the locking block inserted into the locking slot, the first predetermined distance being less than the second predetermined distance.

12. The frame of claim 10, wherein, The locking blocks are provided in plurality, and the plurality of locking blocks are distributed along the circumference of the insertion hole, and the elastic member corresponds to the locking block one by one.

13. The frame of claim 10, wherein, An end surface of the locking block facing the insertion hole is a bevel, and the bevel intersects with the hole depth direction of the insertion hole at an acute angle.

14. The frame of claim 13, wherein, The insertion hole comprises an insertion port, and the closer the position on the bevel to the insertion port, the greater the distance of the position to the central axis of the insertion hole.

15. The frame of claim 10, wherein, The battery device further comprises an unlocking member movably installed in the first direction on the lock assembly and connected with the locking block, and the unlocking member is used to move in the first direction to drive the locking block to exit the locking slot when unlocking.

16. A vehicle characterized by comprising: The vehicle comprises a frame and the battery device as claimed in any one of claims 1-8; or the vehicle comprises the battery device and the frame as claimed in any one of claims 9-15.

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