CN117175127B

CN117175127B - Battery pack connecting mechanism, vehicle and battery pack dismounting mechanism

Info

Publication number: CN117175127B
Application number: CN202311417331.0A
Authority: CN
Inventors: 卢鑫; 漆辉; 沈荣华
Original assignee: Jidu Technology Wuhan Co ltd
Current assignee: Jidu Technology Wuhan Co ltd
Priority date: 2023-10-26
Filing date: 2023-10-26
Publication date: 2024-02-13
Anticipated expiration: 2043-10-26
Also published as: CN117175127A

Abstract

The application specifically relates to a coupling mechanism of battery package, vehicle and dismouting mechanism of battery package for be connected to the automobile body with the battery package, coupling mechanism includes: the sleeve and the piston block are sleeved with each other and are respectively connected to the vehicle body and the battery pack; the sliding cylinder is sleeved outside the sleeve and can slide along the length direction of the sleeve, the pin shaft penetrates through the wall of the sleeve, the first end of the pin shaft is located between the sleeve and the piston block, the piston block is provided with a clamping groove capable of being clamped with the first end, the second end of the pin shaft is located between the sleeve and the sliding cylinder, when the sliding cylinder slides to a first position contacting with the pin shaft, the sliding cylinder can push the second end to enable the first end to be clamped to the clamping groove, and when the sliding cylinder slides to a second position separating from the pin shaft, the piston block can slide downwards by self gravity and push away from the first end to slide towards the second end. The battery pack can be disassembled and assembled through the sliding cylinder, so that the effect of quickly disassembling and assembling the battery pack is achieved.

Description

Battery pack connecting mechanism, vehicle and battery pack dismounting mechanism

Technical Field

The application relates to the technical field of vehicles, in particular to a battery pack connecting mechanism, a vehicle and a battery pack dismounting mechanism.

Background

In order to solve the mileage anxiety of the new energy vehicle, the instant replacement of the battery becomes a popular choice, and the connection structure of the conventional battery pack 100' and the frame 200' is shown in fig. 1, in which the battery pack 100' is generally fixed on the frame 200' through the connection bolt 300', the sleeve 310' and the nut 320', although the basic structural strength requirement can be met, the disassembly and assembly of the connection structure are complicated, and the connection bolt 300', the sleeve 310' and the nut 320' need to be disassembled and assembled one by one, so that the battery pack 100' has long power change time. Further, in view of the durability of the connection structure, the torque of the connection bolt 300' is easily attenuated to loosen the connection bolt 300' when the vehicle is in a long-time driving condition, and further, there is a risk that the battery pack 100' is dropped.

Disclosure of Invention

The purpose of this application is at least to solve current battery package dismouting loaded down with trivial details and inefficiency's technical problem, and this purpose is realized through following technical scheme:

a first aspect of the present application provides a connection mechanism of a battery pack for connecting the battery pack to a vehicle body, the connection mechanism comprising: the sleeve and the piston block are sleeved with each other and are respectively connected to the vehicle body and the battery pack; the sliding cylinder is sleeved outside the sleeve and can slide along the length direction of the sleeve, the pin shaft penetrates through the wall of the sleeve, the first end of the pin shaft is located between the sleeve and the piston block, the piston block is provided with a clamping groove capable of being clamped with the first end, the second end of the pin shaft is located between the sleeve and the sliding cylinder, when the sliding cylinder slides to a first position contacting with the pin shaft, the sliding cylinder can limit the second end to enable the first end to be clamped to the clamping groove, and when the sliding cylinder slides to a second position separating from the pin shaft, the piston block can slide downwards by self gravity and push away from the first end to slide in the direction of the second end.

The battery pack can be disassembled and assembled through the sliding cylinder, so that the effect of quickly disassembling and assembling the battery pack is achieved.

Specifically, when the sliding cylinder slides to a first position contacting the pin shaft, the pin shaft is clamped to the clamping groove of the piston block under the pushing action of the sliding cylinder, so that the purpose of fixing the vehicle body and the battery pack is achieved, and the purpose of locking the battery pack is achieved. When the sliding cylinder slides to a second position separated from the pin shaft, the pin shaft is separated from the clamping groove of the piston block, and the piston block can slide downwards through self gravity and separate the battery pack from the vehicle body, so that the purpose of unlocking the battery pack is achieved.

In some embodiments, the inner wall of the sliding cylinder is provided with a limiting wall and an avoidance groove which are distributed from high to low, the limiting wall is attached to the outer wall of the sleeve, the avoidance groove forms an avoidance space of the second end, the sliding cylinder is located at the first position when the sliding cylinder drives the limiting wall to slide downwards to the second end, and the sliding cylinder is located at the second position when the sliding cylinder drives the avoidance groove to slide upwards to the second end.

In some embodiments, the telescopic section of thick bamboo wall is provided with the slide that supplies the round pin axle to run through, and the first end of round pin axle can stretch out outside the slide and draw-in groove joint, and the second end of round pin axle can stretch out outside the slide and stretch into dodge the groove, and the thickness of section of thick bamboo wall and the length of slide are S1, and the degree of depth of draw-in groove and the degree of depth of dodging the groove are H1, and the length of round pin axle sets up to L, and S1< L is less than or equal to S1+H2.

In some embodiments, the middle portion of the pin is positioned within the slideway, and the center of gravity of the pin is always positioned within the slideway with the first or second end of the pin extending out of the slideway.

In some embodiments, the first end is configured as an arcuate guide head, the slot is configured as an arcuate slot, and the slot pushes the first end out of the slot until the second end moves to the slot when the slot is slid to the second end and the piston block slides down by gravity.

In some embodiments, the second end is set to an arc-shaped guide head, the avoidance groove is set to an arc-shaped groove, and when the clamping groove slides to the first end and the sliding cylinder slides downwards through self gravity, the avoidance groove pushes the second end to separate from the avoidance groove in the sliding process until the first end is clamped to the clamping groove.

In some embodiments, the connecting mechanism further includes an elastic driving member located between the sleeve and the sliding barrel, wherein a driving direction of the elastic driving member is consistent with a gravity direction of the sliding barrel, and the sliding barrel slides to the first position under self gravity and an elastic force of the elastic driving member and can slide to the second position under the driving of an external force.

In some embodiments, the inner wall of the sliding cylinder is provided with a groove above the limiting wall, a detachable limiting cylinder is arranged between the groove and the sleeve, the elastic driving piece is placed in the groove, the top of the elastic driving piece is propped against the limiting cylinder, and the bottom of the elastic driving piece is propped against the sliding cylinder.

In some embodiments, the bottom of the sleeve is provided with a first limit structure, the top of the sleeve is provided with a second limit structure, when the sliding barrel slides to the first position, the bottom of the sliding barrel is propped against the first limit structure, and when the sliding barrel slides to the second position, the top of the sliding barrel is propped against the second limit structure.

In some embodiments, the sliding tube slides from the first position to the second position by a distance L1, and the distance between the center of the avoidance groove and the center of the pin shaft is L2, l1=l2.

A second aspect of the present application provides a vehicle comprising a vehicle body and a battery pack mounted to the vehicle body by a connection mechanism of the battery pack, the connection mechanism of the battery pack being the connection mechanism of the battery pack according to the first aspect of the present application.

In some embodiments, the vehicle body is provided with an upper partition plate and a lower partition plate which are distributed at intervals up and down, a sleeve accommodating space and a sliding space of the sliding cylinder are formed between the upper partition plate and the lower partition plate, the lower partition plate forms a lower limit structure of a first position of the sliding cylinder, and the upper partition plate forms an upper limit structure of a second position of the sliding cylinder.

In some embodiments, the lower separator is provided with a first through hole corresponding to the slide cylinder, the battery pack includes a battery case provided with a second through hole corresponding to the first through hole, and the second through hole is abutted with the first through hole to form a pushing channel of the pushing rod in the case that the battery pack is mounted to the lower separator.

A third aspect of the present application provides a disassembly and assembly mechanism of a battery pack, the disassembly and assembly mechanism disassembling the battery pack through a connection mechanism of the battery pack, the connection mechanism of the battery pack being the battery pack of the vehicle according to the second aspect of the present application.

In some embodiments, the dismounting mechanism comprises a lifting table and a pushing rod, wherein the lifting table is placed at the bottom of the battery box of the battery pack, and the pushing rod is arranged at a position of the lifting table corresponding to the pushing channel of the sliding cylinder.

In some embodiments, the dismounting mechanism further comprises at least one supporting rod mechanism for supporting the lifting platform and a driving device for driving the supporting rod mechanism to lift, wherein the supporting rod mechanism comprises two supporting rods which are mutually hinged in a crossing manner, and the driving device drives the two supporting rods to lift in the height direction in a crossing rotation manner.

In some embodiments, the driving device drives the two support rods to stretch and retract along the width direction, the dismounting mechanism further comprises two support seats respectively arranged on the two support rods, the pushing rod is arranged on the support seats, and the driving device drives the two support rods to adjust the distance between the two support seats.

In some embodiments, the support base is provided with a slide rail, the push rod is slidably disposed on the slide rail through a slider, and the slider is provided with a locking member capable of locking to the slide rail.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is an assembly view of a connection mechanism of a related art battery pack;

fig. 2 is an assembly structure view of a connection mechanism of a battery pack according to an embodiment of the present application;

FIG. 3 is a partial schematic view of the assembled structure of FIG. 2;

fig. 4 is a schematic view showing a structure in which the battery pack shown in fig. 2 is in a disassembled state;

fig. 5 is a schematic structural view of a connection mechanism of a battery pack according to an embodiment of the present application;

FIG. 6 is a schematic view of a slide in the connection mechanism of FIG. 5;

FIG. 7 is a schematic view of the structure of the sleeve of the connection mechanism of FIG. 5;

FIG. 8 is a schematic view of a piston block of the connecting mechanism of FIG. 5;

fig. 9 is a schematic structural view of a disassembly and assembly mechanism of a battery pack according to an embodiment of the present application;

fig. 10 is a schematic structural view of a disassembly and assembly mechanism of a battery pack according to another embodiment of the present application;

FIG. 11 is a bottom view of the disassembly and assembly mechanism of FIG. 10;

FIG. 12 is an isometric view of the disassembly and assembly mechanism of FIG. 10;

FIG. 13 is a schematic view of a worm gear assembly of the disassembly and assembly mechanism of FIG. 10;

FIG. 14 is a schematic view of a supporting seat of the dismounting mechanism shown in FIG. 10;

fig. 15 is a schematic diagram of an assembly structure of the pushing rod and the slider in the dismounting mechanism shown in fig. 10.

Wherein, the reference numerals are as follows:

100', a battery pack; 200', a frame; 300', connecting bolts; 310', a sleeve; 320', a nut;

100. a battery pack; 110. a battery box; 111. a second through hole;

200. a vehicle body; 210. an upper partition plate; 220. a lower partition plate; 221. a first through hole;

300. a connecting mechanism; 310. a sleeve; 311. a slideway; 312. a first limit structure; 320. a piston block; 321. a clamping groove; 322. a conical head; 330. a pin shaft; 331. a first end; 332. a second end; 340. a slide cylinder; 341. a limiting wall; 342. an avoidance groove; 343. a groove; 344. an inner convex ring; 350. an elastic driving member; 360. a limiting cylinder;

400. a disassembly and assembly mechanism; 410. a lifting table; 411. a support rod mechanism; 412. a driving device; 4121. a driving wheel; 4122. a turbine transmission member; 4123. a rack; 4124. a worm; 413. a support base; 4131. a slide rail; 421. pushing the pressing rod; 422. a slide block; 423. a locking piece.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, the connection mechanism and the disassembly and assembly mechanism are described in the battery pack according to the present application as a preferred embodiment, and are not limited in application scope of the connection mechanism and the disassembly and assembly mechanism, for example, the connection mechanism and the disassembly and assembly mechanism according to the present application may be applied to other electric devices and vehicle devices, and the adjustment also belongs to the protection scope of the connection mechanism and the disassembly and assembly mechanism according to the present application.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" are inclusive and therefore specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof.

Although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. In addition, in the description of the present application, unless explicitly stated and limited otherwise, the terms "disposed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in this application will be understood by those skilled in the art as the case may be.

For ease of description, spatially relative terms, such as "outer," "end," "upper," "lower," "high," "low," "inner," "middle," "bottom," "top," "height," "width," "length," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the mechanism in use or operation in addition to the orientation depicted in the figures. For example, if the mechanism in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

The battery pack in the embodiment of the application comprises a battery box and an electric core placed in the battery box, wherein the battery pack is mounted to a vehicle body of a vehicle through the battery box and supplies power for electrical equipment of the vehicle.

The traditional connection structure of the battery pack and the frame generally adopts a screw connection piece, and the screw connection piece not only reduces the disassembly and assembly efficiency of the battery pack and the frame, but also has the risk of structural failure.

In order to solve the technical problem that current battery package dismouting is loaded down with trivial details and inefficiency, the coupling mechanism of battery package that this application provided adopts the mode dismouting battery package of sliding a section of thick bamboo to this effect that realizes quick assembly disassembly battery package.

The specific structure of the connection mechanism of the battery pack according to the embodiment of the present application is described in detail below with reference to fig. 2 to 8.

As shown in fig. 2 to 5, a first aspect of the present application provides a connection mechanism 300 of a battery pack 100 for connecting the battery pack 100 to a vehicle body 200, the connection mechanism 300 including a sleeve 310, a piston block 320, a slide 340, and a pin 330, the sleeve 310 being sleeved outside the piston block 320, the piston block 320 being slidable within the sleeve 310, the sleeve 310 and the piston block 320 being connected to the vehicle body 200 and the battery pack 100, respectively.

The sliding cylinder 340 is sleeved outside the sleeve 310 and can slide along the length direction of the sleeve 310, the pin shaft 330 penetrates through the wall of the sleeve 310, the first end 331 of the pin shaft 330 is located between the sleeve 310 and the piston block 320, the piston block 320 is provided with a clamping groove 321 which can be clamped with the first end 331, the second end 332 of the pin shaft 330 is located between the sleeve 310 and the sliding cylinder 340, when the sliding cylinder 340 slides to a first position contacting the pin shaft 330, the sliding cylinder 340 can limit the second end 332 to enable the first end 331 to be clamped to the clamping groove 321, and when the sliding cylinder 340 slides to a second position separating from the pin shaft 330, the piston block 320 can slide downwards by self gravity and push away from the first end 331 to slide towards the second end 332.

In this embodiment, the connection mechanism 300 of the battery pack 100 provided in the present application adopts the sliding slide 340 to disassemble the battery pack 100, so as to achieve the effect of quickly disassembling the battery pack 100. Specifically, when the sliding cylinder 340 slides to the first position contacting the pin 330, the pin 330 is clamped to the clamping groove 321 of the piston block 320 under the pushing action of the sliding cylinder 340, so as to fix the vehicle body 200 and the battery pack 100. When the sliding cylinder 340 slides to the second position separated from the pin 330, the pin 330 loses the constraint force of the sliding cylinder 340, and can be separated from the clamping groove 321 of the piston block 320 under the pushing force of the piston block 320, at this time, the piston block 320 can slide down by its own weight and separate the battery pack 100 from the vehicle body 200.

Specifically, the top outer wall of the sleeve 310 is connected with the vehicle body 200, and the connection form of the sleeve 310 and the vehicle body 200 is flexibly set according to the specific structure of the vehicle body 200, and the connection form includes, but is not limited to, a connection form of screw connection, welding, interference fit, and the like.

The upper half of the piston block 320 is slidably inserted into the interior of the sleeve 310, and the lower half of the piston block 320 is connected to the battery pack 100 and fixed at the mounting point of the battery pack 100, and the connection manner of the piston block 320 and the battery pack 100 includes, but is not limited to, welding, screwing, interference fit, and the like.

The sliding cylinder 340 is sleeved outside the sleeve 310 and acts on the pin shaft 330 embedded in the sleeve 310 in a sliding manner along the sleeve 310, so that the purpose of unlocking or locking the pin shaft 330 is achieved, and when the pin shaft 330 is in a locking state, the pin shaft 330 is clamped to the clamping groove 321 of the piston block 320 so as to limit the sliding of the piston block 320, thereby achieving the purpose of fixing the battery pack 100 to the vehicle body 200; when the pin 330 loses the restraint of the slide 340 and is in the unlocked state, the piston block 320 loses the restraint of the pin 330 and can be detached from the sleeve 310, thereby achieving the purpose of detaching the battery pack 100 from the vehicle body 200.

The pin 330 is slidably inserted into the wall of the sleeve 310 along the radial direction of the sleeve 310, the first end 331 of the pin 330 extends to the piston block 320, the second end 332 of the pin 330 extends to the slide cylinder 340, and the pin 330 is driven to slide along the radial direction of the sleeve 310 by sliding the slide cylinder 340 and the piston block 320 up and down, so that the first end 331 of the pin 330 is driven to be clamped with or separated from the piston block 320, and the aim of locking or unlocking the battery pack 100 and the vehicle body 200 is achieved.

Compared with the existing bolt connection structure, the connection mechanism 300 of the battery pack 100 does not need to spend a long time to screw or unscrew the bolts, and can achieve the purpose of locking or disassembling the battery pack 100 only by sliding the sliding cylinder 340 along the height direction, so that the disassembly and assembly efficiency of the battery pack 100 is improved.

In addition, it should be noted that the specific structures of the sleeve 310, the piston block 320, the slide cylinder 340 and the pin 330 are not limited in this embodiment, because the combination mechanism formed by combining the sleeve 310, the piston block 320, the slide cylinder 340 and the pin 330 according to this embodiment can basically solve the technical problem of complicated assembly and disassembly of the battery pack 100, and the specific details of the sleeve 310, the piston block 320, the slide cylinder 340 and the pin 330 will be described in detail as preferred embodiments of this application in the following embodiments.

The specific details of the sleeve 310, piston block 320, slide 340, and pin 330 are set forth below in the preferred embodiments of the present application.

As shown in fig. 5 and fig. 6, in some embodiments, the inner wall of the sliding tube 340 is provided with a limiting wall 341 and an avoidance groove 342 which are distributed from high to low, the limiting wall 341 is attached to the outer wall of the sleeve 310, the avoidance groove 342 forms an avoidance space of the second end 332, when the sliding tube 340 drives the limiting wall 341 to slide down to the second end 332, the sliding tube 340 is located at the first position, and when the sliding tube 340 drives the avoidance groove 342 to slide up to the second end 332, the sliding tube 340 is located at the second position.

In the present embodiment, when the sliding cylinder 340 slides to the position where the limiting wall 341 is located on the pin 330, the limiting wall 341 is tightly attached to the pin 330, so as to push the pin 330 to the clamping groove 321 clamped to the piston block 320, thereby achieving the purpose of limiting the pin 330 to slide radially outwards and separate from the piston block 320, and locking the piston block 320 to the sleeve 310; when the slide cylinder 340 slides to the position where the avoiding groove 342 is located on the pin shaft 330, the avoiding groove 342 provides a space for the pin shaft 330 to slide outwards in the radial direction, and at this time, the pin shaft 330 can move outwards in the radial direction under the action of the pushing force of the piston block 320, so as to achieve the purpose of unlocking the piston block 320 and the sleeve 310.

Specifically, a transition structure is further disposed between the limiting wall 341 and the avoidance groove 342, through which the pin 330 can smoothly slide between the limiting wall 341 and the avoidance groove 342, so that the blocking phenomenon of the pin 330 during the transition between the limiting wall 341 and the avoidance groove 342 is reduced, for example, the transition structure includes, but is not limited to, arc chamfer.

Further, the position of the limiting wall 341 is set to be higher than the position of the avoidance groove 342, so that the convenience of the sliding cylinder 340 is considered, for example, the avoidance groove 342 of the sliding cylinder 340 can be slid to the position of the pin 330 by pushing the sliding cylinder 340 upwards at the bottom of the sliding cylinder 340, so that the pin 330 is in an unlocked state, and the convenience of operation is improved; when the pushing force of the sliding cylinder 340 is lost, the sliding cylinder 340 can naturally fall back to the position of the locking pin 330 through the gravity of the sliding cylinder 340, so that the safety and reliability of the connecting mechanism 300 for locking the battery pack 100 are improved.

As shown in fig. 5 to 8, in some embodiments, a sliding way 311 through which a pin 330 passes is provided on a wall of a sleeve 310, a first end 331 of the pin 330 can extend out of the sliding way 311 and is clamped with a clamping groove 321, a second end 332 of the pin 330 can extend out of the sliding way 311 and extend into an avoidance groove 342, the thickness of the wall of the sleeve and the length of the sliding way 311 are both S1, the depth of the clamping groove 321 and the depth of the avoidance groove 342 are both H1, the length of the pin 330 is L, and S1< L is less than or equal to s1+h1.

In this embodiment, the length of the pin 330 is set so that the second end 332 of the pin 330 can be tightly attached to the limiting wall 341 of the sliding tube 340, and the first end 331 of the pin 330 can extend into the slot 321 of the piston block 320 to lock the piston block 320. Further, when l=s1+h1, the first end 331 of the pin 330 can be tightly attached to the clamping groove 321 of the piston block 320, and the second end 332 of the pin 330 is tightly attached to the limiting wall 341 of the sliding cylinder 340, so that not only the effect of completely locking the pin 330 by the sliding cylinder 340 can be achieved, but also the phenomenon of radial error displacement of the pin 330 in the process of clamping the piston block 320 can be reduced.

Similarly, when the second end 332 of the pin 330 moves to the avoidance groove 342 of the slide 340, the first end 331 of the pin 330 can leave the sliding channel of the piston block 320, so that the piston block 320 can drop in the sleeve 310 and separate from the pin 330, thereby achieving the purpose of unlocking the piston block 320 and the battery pack 100.

As shown in fig. 5-7, in some embodiments, the middle of the pin 330 is located within the slide 311, and with the first end 331 or the second end 332 of the pin 330 extending out of the slide 311, the center of gravity of the pin 330 is always located within the slide 311.

In this embodiment, the center of gravity of the pin 330 is always located in the slide way 311, so that the situation that the first end 331 or the second end 332 of the pin 330 extends out of the slide way 311, and the pin 330 falls to the clamping groove 321 of the piston block 320 or the avoiding groove 342 of the slide cylinder 340 due to weight loss from the sleeve 310 can be reduced.

Specifically, in order to achieve that the center of gravity of the pin 330 is always located in the slide way 311, one embodiment of the present application proposes that S1> H1, and by virtue of the size, the majority of the pin 330 is located in the slide way 311 of the sleeve 310, so as to achieve the purpose of always limiting the center of gravity of the pin 330 in the slide way 311.

Another embodiment of the present application proposes that the density of the middle part of the pin 330 is greater than the density of the two ends of the pin 330, for example, the middle part of the pin 330 is made of a metal material, the two ends of the pin 330 are made of a wear-resistant nonmetallic material, and the purpose of always limiting the center of gravity of the pin 330 in the slideway 311 is achieved through the advantage of density, which both embodiments belong to the protection scope of the embodiments of the present application.

Further, the inner diameter of the sliding way 311 is the same as the outer diameter of the pin shaft 330, so that the gap between the pin shaft 330 and the sliding way 311 can be reduced, and the pin shaft 330 can be inclined to drop into the clamping groove 321 of the piston block 320 or the avoiding groove 342 of the sliding cylinder 340 under the condition that the first end 331 or the second end 332 of the pin shaft 330 extends out of the sliding way 311. Specifically, the inner diameter of the slideway 311 is the same as the outer diameter of the pin 330, which means that the two outer diameters are the same and are in clearance fit, so that the pin 330 can slide in the slideway 311 along the radial direction of the sleeve 310.

As shown in fig. 5 to 7, in some embodiments, the first end 331 is configured as an arc-shaped guide head, the clamping groove 321 is configured as an arc-shaped groove, and when the avoidance groove 342 slides to the second end 332 and the piston block 320 slides down by self gravity, the clamping groove 321 pushes the first end 331 to disengage from the clamping groove 321 until the second end 332 moves to the avoidance groove 342.

In this embodiment, by setting the first end 331 of the pin 330 as an arc-shaped guide head and setting the clamping groove 321 as an arc-shaped groove, smoothness of clamping or separating the pin 330 from the piston block 320 can be improved, and a phenomenon that the piston block 320 is clamped at the clamping groove 321 or a gap between the piston block 320 and the sleeve 310 is reduced.

Further, the outer diameter of the pin 330 is consistent with the inner diameter of the slideway 311, so that the pin 330 can translate and slide along the slideway 311 in the radial direction in the process that the pin 330 is pushed by the piston block 320, and the phenomenon that the pin 330 falls into the clamping groove 321 in an inclined way under the pushing of the piston block 320 is reduced.

Still further, the top of the piston block 320 is set to be the conical head 322, the middle of the piston block 320 is set to be the hollow structure, the top of the piston block 320 is set to be the conical head 322, so that the sliding smoothness of the piston block 320 and the sleeve 310 can be improved, the first end 331 of the pin shaft 330 can be conveniently separated from the clamping groove 321 of the piston block 320, the piston block 320 is set to be the hollow structure, the weight of the piston block 320 can be reduced, and the abrasion of the piston block 320 to the pin shaft 330 is reduced.

As shown in fig. 5 to 7, in some embodiments, the second end 332 is configured as an arc-shaped guide head, the avoidance groove 342 is configured as an arc-shaped groove, and when the clamping groove 321 slides to the first end 331 and the sliding barrel 340 slides down by self gravity, the avoidance groove 342 pushes the second end 332 to separate from the avoidance groove 342 in the sliding process until the first end 331 is clamped to the clamping groove 321.

In this embodiment, by setting the second end 332 of the pin 330 as an arc-shaped guiding head and setting the avoidance groove 342 as an arc-shaped groove, the smoothness of the pin 330 clamped or separated from the sliding cylinder 340 can be improved, and the phenomenon that the piston block 320 is clamped at the avoidance groove 342 or the gap between the sliding cylinder 340 and the sleeve 310 is reduced.

Further, the outer diameter of the pin 330 is consistent with the inner diameter of the slideway 311, so that the pin 330 can translate and slide along the slideway 311 in the radial direction in the process that the pin 330 is pushed by the slide 340, and the phenomenon that the pin 330 falls to the avoiding groove 342 in an inclined way under the pushing of the slide 340 is reduced.

As shown in fig. 2 to 5, in some embodiments, the connection mechanism 300 further includes an elastic driving member 350 located between the sleeve 310 and the sliding cylinder 340, where the driving direction of the elastic driving member 350 coincides with the gravity direction of the sliding cylinder 340, and the sliding cylinder 340 slides to the first position under the self gravity and the elasticity of the elastic driving member 350, and can slide to the second position under the driving of the external force.

In this embodiment, the elastic driving member 350 includes a spring and a rubber sleeve, and under the condition that the connection mechanism 300 is not driven by an external force, the sliding cylinder 340 can naturally fall back to the position of the locking pin shaft 330 under the action of the elastic force and the gravity of the sliding cylinder, so that the safety and reliability of the battery pack 100 locked by the connection structure are improved.

Specifically, since the position of the limiting wall 341 is set to be higher than the position of the avoidance groove 342, when the sliding cylinder 340 falls, the height of the sliding cylinder 340 is reduced, and at this time, the limiting wall 341 of the sliding cylinder 340 cooperates with the pin 330 to limit the pin 330 from moving radially outwards, so as to limit the pin 330 to a position clamped to the piston block 320, and reduce the risk of false unlocking of the piston block 320 and the battery pack 100.

Further, in the embodiment of the present application, the elastic driving member 350 limits the sliding cylinder 340 to the locking position of the pin 330, so that the elastic driving member 350 can limit the sliding cylinder 340 from moving upwards due to jolt to unlock by mistake during jolt and jolt of the vehicle.

As shown in fig. 2 to 6, in some embodiments, a groove 343 above the limiting wall 341 is provided on the inner wall of the sliding cylinder 340, a detachable limiting cylinder 360 is provided between the groove 343 and the sleeve 310, the elastic driving member 350 is placed in the groove 343, the top of the elastic driving member 350 is pressed against the limiting cylinder 360, and the bottom of the elastic driving member 350 is pressed against the sliding cylinder 340.

In this embodiment, the limiting cylinder 360 is detachably mounted to the outer wall of the sliding cylinder 340, so that the elastic driving member 350 and the sliding cylinder 340 can be conveniently assembled and disassembled. Specifically, before the slide cylinder 340 and the elastic driving member 350 are assembled to the sleeve 310, the limiting cylinder 360 is removed from the sleeve 310, then the slide cylinder 340 is assembled to the sleeve 310 from top to bottom, then the elastic driving member 350 is placed in the groove 343 between the slide cylinder 340 and the sleeve 310, finally the limiting cylinder 360 is mounted to the outer wall of the slide cylinder 340, the groove 343 between the slide cylinder 340 and the sleeve 310 is blocked, and the elastic driving member 350 is limited.

Further, the top of the sleeve 310 is provided with a shrinkage port structure, the inside diameter of the shrinkage port structure is smaller than the inside diameter of the matching part of the sleeve 310 and the piston block 320, the sliding height of the piston block 320 can be limited, the outer wall of the shrinkage port structure forms a step structure, and the step structure can play a role in supporting and clamping the limiting cylinder 360.

As shown in fig. 5 to 7, in some embodiments, a first limiting structure 312 is provided at the bottom of the sleeve 310, a second limiting structure is formed at the top of the sleeve 310, when the slide 340 slides to the first position, the bottom of the slide 340 is pressed against the first limiting structure 312, and when the slide 340 slides to the second position, the top of the slide 340 is pressed against the second limiting structure.

In this embodiment, the first limiting structure 312 plays a role in limiting the sliding lower limit of the sliding cylinder 340, so as to prevent the sliding cylinder 340 from sliding downward beyond the first position, and the second limiting structure plays a role in limiting the sliding upper limit of the sliding cylinder 340, so as to prevent the sliding cylinder 340 from sliding upward beyond the second position, thereby improving the working reliability of the sliding cylinder 340.

Specifically, the first limiting structure 312 is an outer convex ring disposed on an outer wall of the bottom of the sleeve 310, an inner convex ring 344 matched with the outer convex ring is disposed on an inner wall of the sliding cylinder 340, and an outer diameter of the outer convex ring is larger than an inner diameter of the inner convex ring 344, so that the outer convex ring can play a role of clamping the inner convex ring 344, and a phenomenon that the sliding cylinder 340 is separated from the bottom of the sleeve 310 is avoided.

The second limit structure sets up in the top outer wall of spacing section of thick bamboo 360, includes with spacing section of thick bamboo 360 integrated into one piece's protruding structure, still including pasting the part (as above baffle 210) on the automobile body 200 of the top outer wall of spacing section of thick bamboo 360, can play the effect of screens slide 340 through the second limit structure, avoids the phenomenon that slide 340 breaks away from sleeve 310's top.

As shown in fig. 2 and 3, in some embodiments, the sliding travel of the sliding cylinder 340 from the first position to the second position is L1, the distance between the center of the avoidance groove 342 and the center of the pin 330 is L2, l1=l2.

In this embodiment, after the sliding cylinder 340 slides to the second position, the second limiting structure limits the sliding cylinder 340, at this time, the avoiding groove 342 of the sliding cylinder 340 exactly corresponds to the pin shaft 330, and the pin shaft 330 can smoothly slide to the avoiding groove 342 under the driving of the piston block 320, so as to achieve the purpose of precisely controlling the pin shaft 330.

Further, since the second limiting structure can limit the sliding cylinder 340 after the sliding cylinder 340 slides to the second position, the pushing force and the pushing distance do not need to be precisely calculated in the process of pushing the sliding cylinder 340 upwards, so long as the sliding cylinder 340 is pushed to the second limiting structure and cannot slide, the position at this time is the target position of the sliding cylinder 340, and the convenience of operating the sliding cylinder 340 is improved.

As shown in fig. 2 and 4, the second aspect of the present application provides a vehicle including a vehicle body 200 and a battery pack 100, the battery pack 100 being mounted to the vehicle body 200 by a connection mechanism 300 of the battery pack 100, the connection mechanism 300 of the battery pack 100 being the connection mechanism 300 of the battery pack 100 according to the first aspect of the present application.

In the present embodiment, the vehicle of the second aspect of the present application has all technical effects of the connection mechanism 300 of the battery pack 100 of the first aspect of the embodiment of the present application, and the specific structure and technical effects of the vehicle are explained in detail below.

As shown in fig. 2 and 4, in some embodiments, the vehicle body 200 is provided with upper and lower partitions 210 and 220 spaced up and down, an accommodating space of the sleeve 310 and a sliding space of the slide 340 are formed between the upper and lower partitions 210 and 220, and the lower partition 220 forms a lower limit structure of a first position of the slide 340 and the upper partition 210 forms an upper limit structure of a second position of the slide 340.

In this embodiment, the upper partition 210 and the lower partition 220 not only can play a role in limiting the sliding cylinder 340, but also can play a role in protecting the sliding cylinder 340, so as to reduce the risk of misoperation of the sliding cylinder 340 caused by external force.

Further, the sleeve 310 is mounted to the vehicle body 200 through the upper and lower partitions 210 and 220, the top of the sleeve 310 is mounted to the upper partition 210, the bottom of the sleeve 310 is mounted to the lower partition 220, and the upper and lower partitions 210 and 220 are each provided with a mounting hole to be fitted with the sleeve 310, so that the piston block 320 can be extended to the inside of the sleeve 310 through the mounting hole of the lower partition 220.

As shown in fig. 2 and 4, in some embodiments, the lower separator 220 is provided with a first through hole 221 corresponding to the slide 340, the battery pack 100 includes the battery case 110, the battery case 110 is provided with a second through hole 111 corresponding to the first through hole 221, and the second through hole 111 is butted with the first through hole 221 to constitute a pushing passage of the pushing rod 421 when the battery pack 100 is mounted to the lower separator 220.

In the present embodiment, by providing the pushing channel formed by abutting the second through hole 111 and the first through hole 221, the pushing rod 421 can separate the battery pack 100 from the vehicle body 200 by pushing the slide cylinder 340 under the battery pack 100, so as to improve the operation experience of disassembling the battery pack 100.

Specifically, the position of the limiting wall 341 of the sliding cylinder 340 is higher than the position of the avoiding groove 342, when the sliding cylinder 340 is pushed upwards by the pushing rod 421 at the bottom of the sliding cylinder 340, the avoiding groove 342 of the sliding cylinder 340 can slide to the position of the pin 330, so that the pin 330 is in an unlocking state, and the convenience of operation is improved; when the pushing force of the sliding tube 340 is lost, the sliding tube can naturally fall back to the position of the locking pin 330 through the gravity of the sliding tube, so that the safety and reliability of the battery pack 100 locked by the connecting structure are improved.

As shown in fig. 9 to 15, a third aspect of the present application provides a disassembly and assembly mechanism 400 of a battery pack 100, the disassembly and assembly mechanism 400 disassembling the battery pack 100 through a connection mechanism 300 of the battery pack 100, the connection mechanism 300 of the battery pack 100 being the battery pack 100 of the vehicle according to the second aspect of the present application.

In this embodiment, the dismounting mechanism 400 of the battery pack 100 according to the third embodiment of the present application is matched with the connecting mechanism 300 of the battery pack 100 according to the first embodiment of the present application, so that the purpose of quickly dismounting the battery pack 100 can be achieved, and the dismounting efficiency and the dismounting experience of the battery pack 100 can be improved.

As shown in fig. 9 and 10, in some embodiments, the dismounting mechanism 400 includes a lifting table 410 and a pushing rod 421, the lifting table 410 is placed at the bottom of the battery case 110 of the battery pack 100, and the pushing rod 421 is disposed at a position of the lifting table 410 corresponding to the pushing channel of the slide 340.

In this embodiment, when the battery pack 100 needs to be disassembled, only the lifting platform 410 is required to be placed below the battery pack 100, and the pushing rod 421 is lifted by lifting the lifting platform 410, so that the pushing rod 421 sequentially passes through the second through hole 111 and the first through hole 221 and then pushes the slide cylinder 340, the purpose of unlocking the pin shaft 330 can be achieved by lifting the push slide cylinder 340, and the piston block 320 is separated from the sleeve 310, thereby achieving the purpose of disassembling the battery pack 100.

Similarly, when the battery pack 100 needs to be installed, only the lifting table 410 is required to be placed below the vehicle body 200, and the battery pack 100 is placed on the lifting table 410, and the battery pack 100 and the piston block 320 are lifted by lifting the lifting table 410, so that the piston block 320 passes through the vehicle body 200 and is clamped to the sleeve 310, thereby achieving the purpose of installing the battery pack 100.

As shown in fig. 10, in some embodiments, the dismounting mechanism 400 further includes at least one support rod mechanism 411 supporting the lifting platform 410, and a driving device 412 driving the support rod mechanism 411 to lift, where the support rod mechanism 411 includes two support rods hinged to each other in a cross manner, and the driving device 412 drives the two support rods to lift in the height direction by means of cross rotation.

In the present embodiment, the driving device 412 is engaged with the support rod mechanism 411 to drive the lifting table 410 to lift, thereby removing and attaching the battery pack 100.

Specifically, the two support rods of the support rod mechanism 411 are hinged through a rotation shaft, and the driving device 412 includes a hydraulic cylinder or a pneumatic cylinder, and an output shaft of the hydraulic cylinder or the pneumatic cylinder is connected to the rotation shaft, for driving the lifting table 410 to lift by driving the rotation shaft to lift.

As shown in fig. 10 to 13, in some embodiments, the driving device 412 drives the two support rods to stretch and retract along the width direction, the dismounting mechanism 400 further includes two support seats 413 respectively disposed on the two support rods, the pushing rod 421 is disposed on the support seats 413, and the driving device 412 drives the two support rods to adjust the space between the two support seats 413.

In the present embodiment, the distance between the two supporting seats 413 is adjusted to achieve the purpose of adjusting the distance between the two pushing rods 421 which are oppositely arranged, so as to improve the applicability of the dismounting mechanism 400, and enable the dismounting mechanism 400 to dismount the battery packs 100 with different sizes and the connection mechanisms 300 at different positions on the battery packs 100.

Further, the driving device 412 further includes a driving wheel 4121, a worm gear 4122, a rack 4123 and a worm 4124, and the user can sequentially transmit the driving force of the driving wheel 4121 to the worm 4124, the worm gear 4122 and the two racks 4123 by rotating the driving wheel 4121, and the two racks 4123 transmit the driving force of the driving wheel 4121 to the two supporting seats 413, so as to achieve the purpose of adjusting the space between the two supporting seats 413.

The bottom end of the turbine driving member 4122 is matched with the worm 4124, and the top end of the turbine driving member 4122 is matched with the two racks 4123, so that the purpose of synchronously driving the two racks 4123 and the two supporting seats 413 is achieved.

As shown in fig. 14 and 15, in some embodiments, the support 413 is provided with a sliding rail 4131, the pushing rod 421 is slidably disposed on the sliding rail 4131 through a sliding block 422, and the sliding block 422 is provided with a locking member 423 capable of locking to the sliding rail 4131.

In the present embodiment, the position of the sliding rail 4131 is adjusted by adjusting the position of the sliding block 422, so as to achieve the purpose of adjusting the position of the pushing rod 421, thereby improving the applicability of the dismounting mechanism 400, and enabling the dismounting mechanism 400 to dismount the battery packs 100 with different sizes and the connection mechanisms 300 at different positions on the battery packs 100.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.

In addition, the battery pack 100 provided in the embodiment of the present application is preferably used for a vehicle, however, the embodiment of the present application proposes that the battery pack 100 is used for a vehicle as a preferred embodiment, and is not limited to the protection scope of the embodiment of the present application, for example, the embodiment of the present application may also use the battery pack 100 for other electric devices, and such adjustment also belongs to the protection scope of the embodiment of the present application.

The embodiment of the present application only illustrates the structure related to the improvement point of the present application in the connection mechanism 300 and the disassembly mechanism 400 of the battery pack 100, and does not represent that the connection mechanism 300 and the disassembly mechanism 400 of the battery pack 100 of the present application do not have other structures, for example, the connection mechanism 300 and the disassembly mechanism 400 of the battery pack 100 further include a docking sensor, and the connection mechanism 300 and the disassembly mechanism 400 of the battery pack 100 are provided with docking sensors, such as an infrared sensor, and the positions of the battery pack 100 and the docking channel are identified by the docking sensor, and then the lifting of the lifting table 410 is driven and the position of the pushing rod 421 is adjusted, so that the purpose of precisely disassembling the battery pack 100 is achieved.

The foregoing is merely a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A connection mechanism of a battery pack for connecting the battery pack to a vehicle body, characterized by comprising:

a sleeve and a piston block sleeved with each other, the sleeve and the piston block being connected to the vehicle body and the battery pack, respectively;

the sliding cylinder is sleeved outside the sleeve and can slide along the length direction of the sleeve, the pin shaft penetrates through the wall of the sleeve, the first end of the pin shaft is positioned between the sleeve and the piston block, the piston block is provided with a clamping groove which can be clamped with the first end, the second end of the pin shaft is positioned between the sleeve and the sliding cylinder, the wall of the sleeve is provided with a slideway for the pin shaft to penetrate through, the middle part of the pin shaft is positioned in the slideway, and the gravity center of the pin shaft is always positioned in the slideway under the condition that the first end or the second end of the pin shaft extends out of the slideway,

when the sliding cylinder slides to a first position contacting the pin shaft, the sliding cylinder can push the second end to enable the first end to be clamped to the clamping groove, when the sliding cylinder slides to a second position separated from the pin shaft, the piston block can slide downwards by self gravity and push away from the first end to slide towards the second end, the inner wall of the sliding cylinder is provided with a limiting wall and an avoidance groove which are distributed from high to low, the limiting wall is attached to the outer wall of the sleeve, the avoidance groove forms an avoidance space of the second end, when the sliding cylinder drives the limiting wall to slide downwards to the second end, the sliding cylinder is positioned at the first position, when the sliding cylinder drives the avoidance groove to slide upwards to the second end, the sliding cylinder is positioned at the second position,

The vehicle body is provided with an upper baffle plate and a lower baffle plate which are distributed vertically at intervals, a sleeve accommodating space and a sliding space of the sliding cylinder are formed between the upper baffle plate and the lower baffle plate, the lower baffle plate forms a lower limit structure of a first position of the sliding cylinder, the upper baffle plate forms an upper limit structure of a second position of the sliding cylinder,

the battery pack comprises a battery box, the battery box is provided with a second through hole corresponding to the first through hole, and the second through hole is in butt joint with the first through hole to form a pushing channel of a pushing rod under the condition that the battery pack is mounted on the lower partition plate.

2. The battery pack connecting mechanism according to claim 1, wherein the first end of the pin shaft can extend out of the slide way to be clamped with the clamping groove, the second end of the pin shaft can extend out of the slide way to extend into the avoidance groove, the thickness of the cylinder wall and the length of the slide way are both S1, the depth of the clamping groove and the depth of the avoidance groove are both H1, the length of the pin shaft is L, and S1< L is less than or equal to S1+H21.

3. The battery pack connection mechanism of claim 2, wherein the first end is provided as an arcuate guide head, the clamping groove is provided as an arcuate groove, and the clamping groove pushes the first end out of the clamping groove until the second end moves to the avoiding groove when the avoiding groove slides to the second end and the piston block slides down by self gravity.

4. The connection mechanism of a battery pack according to claim 2, wherein the second end is provided with an arc-shaped guide head, the avoidance groove is provided with an arc-shaped groove, and when the clamping groove slides to the first end and the sliding barrel slides downwards by self gravity, the avoidance groove pushes the second end to be separated from the avoidance groove in the sliding process until the first end is clamped to the clamping groove.

5. The connection mechanism of a battery pack according to claim 4, further comprising an elastic driving member between the sleeve and the slide, wherein a driving direction of the elastic driving member coincides with a gravitational direction of the slide, and the slide slides to the first position under self-gravity and an elastic force of the elastic driving member and is capable of sliding to the second position under an external force.

6. The battery pack connection mechanism according to claim 5, wherein a groove above the limiting wall is formed in the inner wall of the slide tube, a detachable limiting tube is arranged between the groove and the sleeve, the elastic driving piece is placed in the groove, the top of the elastic driving piece is pressed against the limiting tube, and the bottom of the elastic driving piece is pressed against the slide tube.

7. The battery pack connection mechanism according to claim 1, wherein a first limit structure is provided at the bottom of the sleeve, a second limit structure is formed at the top of the sleeve, the bottom of the slide is pressed against the first limit structure when the slide is slid to the first position, and the top of the slide is pressed against the second limit structure when the slide is slid to the second position.

8. The connection mechanism of the battery pack according to claim 7, wherein a stroke of the slide cylinder from the first position to the second position is L1, a distance between a center of the escape groove and a center of the pin shaft is L2, l1=l2.

9. A vehicle characterized by comprising a vehicle body and a battery pack mounted to the vehicle body by a connection mechanism of the battery pack, the connection mechanism of the battery pack being the connection mechanism of the battery pack according to any one of claims 1 to 8.

10. A disassembly and assembly mechanism of a battery pack, characterized in that the disassembly and assembly mechanism disassembles the battery pack through a connection mechanism of the battery pack, and the connection mechanism of the battery pack is the connection mechanism of the battery pack according to any one of claims 1 to 8.

11. The battery pack dismounting mechanism according to claim 10, wherein the dismounting mechanism includes a lifting table and a push rod, the lifting table is placed at a bottom of a battery case of the battery pack, and the push rod is provided at a position of the lifting table corresponding to the push passage of the slide.

12. The battery pack attaching and detaching mechanism according to claim 11, further comprising at least one support bar mechanism supporting the lifting table, and a driving device driving the support bar mechanism to lift, the support bar mechanism comprising two support bars hinged to each other in a crossing manner, the driving device driving the two support bars to lift in a height direction by crossing rotation.

13. The battery pack dismounting mechanism according to claim 12, wherein the driving device drives the two support rods to stretch and retract in the width direction at the same time, the dismounting mechanism further comprises two support seats respectively provided at the two support rods, the pushing rod is provided at the support seats, and the driving device drives the two support rods to adjust the distance between the two support seats.

14. The battery pack dismounting mechanism according to claim 13, wherein the support base is provided with a slide rail, the push rod is slidably provided to the slide rail through a slider, and the slider is provided with a lock member that can be locked to the slide rail.