CN221352856U - Stacking mechanism of lithium battery PACK module - Google Patents

Abstract

The utility model discloses a stacking mechanism of a lithium battery PACK module, which relates to the technical field of lithium battery processing and comprises a base and a dynamic limiting and clamping mechanism; the dynamic limiting clamping mechanism comprises a transverse limiting plate, a longitudinal limiting plate, a movable limiting plate, an elastic mechanism and an adjusting mechanism; the transverse limiting plate and the longitudinal limiting plate are fixedly connected to the base; the movable limiting plates comprise a first group of movable limiting plates and a second group of movable limiting plates, the first group of movable limiting plates are parallel to the transverse limiting plates and can adjust and lock the distance between the movable limiting plates and the transverse limiting plates, and the second group of movable limiting plates are parallel to the longitudinal limiting plates and can adjust and lock the distance between the movable limiting plates and the longitudinal limiting plates; the inner side of the movable limiting plate is provided with an elastic mechanism, and the adjusting mechanism can adjust the distance between the elastic mechanism and the movable limiting plate. The utility model has the advantages that: the battery cells can be stacked neatly, and the battery cells are prevented from being damaged due to the too high clamping speed.

Description

Stacking mechanism of lithium battery PACK module

Technical Field

The utility model relates to the technical field of lithium battery processing, in particular to a stacking mechanism of a lithium battery PACK module.

Background

The lithium battery PACK system utilizes a mechanical structure to connect a plurality of single battery cells in series, and considers the problems of mechanical strength, thermal management, BMS matching and the like of the system, the working procedure of the lithium battery PACK is generally divided into three parts of processing, assembling and packaging, at present, each manufacturer commonly uses a semi-automatic PACK assembly production line, and the semi-automatic PACK assembly production line is mainly used for the on-line, off-line, detection, in-factory transmission and packaging of a lithium battery PACK module, and a stacking mechanism is needed in the stacking process of the lithium battery PACK module.

Patent document with publication number CN208522044U discloses a cell stacking device, which uses bolts to drive pressing plates to clamp stacked cells. The existing stacking mechanism has the following defects: (1) The lithium battery cell can be clamped rapidly only after the battery cells are stacked completely, an auxiliary clamping mechanism in the stacking process is absent, the battery cells are easy to stack irregularly, and the battery cells are easy to damage due to too high clamping speed; (2) When in use, the device is easy to slide and inconvenient and fast to fix; (3) the small parts required in the stacking process are inconvenient to take.

Disclosure of utility model

The utility model aims to solve the technical problems of neatly stacking the battery cells and preventing the battery cells from being damaged due to too high clamping speed.

The utility model solves the technical problems by the following technical means: a stacking mechanism of a lithium battery PACK module comprises a base and a dynamic limiting and clamping mechanism; the dynamic limiting clamping mechanism comprises a transverse limiting plate, a longitudinal limiting plate, a movable limiting plate, an elastic mechanism and an adjusting mechanism; the transverse limiting plate and the longitudinal limiting plate are fixedly connected to the base; the movable limiting plates comprise a first group of movable limiting plates and a second group of movable limiting plates, the first group of movable limiting plates are parallel to the transverse limiting plates and can adjust and lock the distance between the movable limiting plates and the transverse limiting plates, and the second group of movable limiting plates are parallel to the longitudinal limiting plates and can adjust and lock the distance between the movable limiting plates and the longitudinal limiting plates; the inner side of the movable limiting plate is provided with an elastic mechanism, and the adjusting mechanism can adjust the distance between the elastic mechanism and the movable limiting plate. When stacking the battery cells, the first group of movable limiting plates and the second group of movable limiting plates are respectively adjusted to initial positions according to the size of the lithium battery and locked, and the battery cells are placed in a square frame structure formed by the transverse limiting plates, the longitudinal limiting plates and the movable limiting plates; the elastic mechanism is used as an auxiliary clamping mechanism in the stacking process and can guide the electric cores to be stacked neatly; when all the battery cells are placed, the elastic mechanism can be adjusted to one side far away from the movable limiting plate by utilizing the adjusting mechanism, so that the final limiting and clamping of the battery cells are completed; the elastic mechanism can slowly stretch towards the battery core when being regulated, so that the battery core is prevented from being damaged due to too high clamping speed, and the use safety of the stacking mechanism is effectively improved.

As an optimized technical scheme, the transverse limiting plate is provided with a transverse adjusting groove in a penetrating manner, and the longitudinal limiting plate is provided with a longitudinal adjusting groove in a penetrating manner; the first group of movable limiting plates are fixedly connected with the longitudinal limiting plates through bolts and nuts; the bolt hole is seted up to the position that one end of second group activity limiting plate corresponds the horizontal adjustment tank, and the second group activity limiting plate can pass through bolt and nut with horizontal limiting plate fixed connection.

As the technical scheme of optimizing, dynamic spacing fixture still includes the stopper, stopper fixed connection is in the lateral surface lower part intermediate position and the bottom of movable limiting plate with the bottom of movable limiting plate flushes.

As the optimized technical scheme, the elastic mechanism comprises an elastic arc piece and an isolation film, wherein the upper part of the elastic arc piece is fixedly connected with the movable limiting plate through an arc structure, and the isolation film is fixedly connected with one surface of the elastic arc piece, which faces the movable limiting plate. The isolation film effectively improves the elasticity of the elastic mechanism and prevents the elastic arc piece from damaging the battery cell excessively hard.

As an optimized technical scheme, the adjusting mechanism comprises a screw rod, a handle, a reinforcing rod and a driving plate; the screw rod passes through the middle position of the movable limiting plate and is in threaded connection with the movable limiting plate; one end of the screw rod, which is positioned at the outer side of the movable limiting plate, is fixedly connected with a handle; the reinforcing rod is arranged between the elastic mechanism and the movable limiting plate, one end of the reinforcing rod is fixedly connected with one end of the movable limiting plate, and the other end of the reinforcing rod is rotatably connected with one end, located at the inner side of the movable limiting plate, of the screw rod; one surface of the driving plate is fixedly connected with the elastic mechanism, and the middle position of the other surface of the driving plate is fixedly connected with the reinforcing rod.

As an optimized technical scheme, the stacking mechanism of the lithium battery PACK module further comprises a bottom clamping and clamping mechanism, wherein the bottom clamping and clamping mechanism comprises a mounting guide groove, a clamping sliding block, a swinging outer frame and a driving convex strip; the installation guide groove is formed in the base; one side of the installation guide groove is provided with a clamping sliding groove in a penetrating way, and a clamping sliding block in sliding fit with the clamping sliding groove is arranged in the clamping sliding groove; the clamping sliding block is elastically connected with the inner wall of the installation guide groove; the swing outer frame is arranged on the outer side of the installation guide groove and is rotationally connected to the base through a rotating shaft parallel to the installation guide groove in the length direction, a driving convex strip is fixedly connected to the inner end of the swing outer frame, and the driving convex strip is in sliding fit with the clamping sliding block. When the base is clamped and fixed, the installation guide groove is clamped outside the placing rod; then the outer end of the swing outer frame is pulled downwards, and the inner end drives the driving convex strip to swing upwards in the process that the outer end of the swing outer frame swings downwards, so that the clamping sliding block is driven to move along the clamping sliding groove into the installation guide groove against the elasticity; when the swing outer frame swings to a horizontal position, the hand is released, and the holding sliding block tightly holds the placing rod in the installation guide groove; when the base is required to be separated from the placing rod, the outer end of the outer swinging frame is pulled upwards, the inner end drives the driving convex strip to swing downwards in the process that the outer end of the outer swinging frame swings upwards, the clamping sliding block moves outwards of the mounting guide groove along the clamping sliding groove under the action of elasticity, and the placing rod is loosened; the bottom clamping and holding mechanism can realize the quick fixation of base, prevents that the base from appearing the slip phenomenon, has effectively improved stacking mechanism's stability.

As the technical scheme of optimizing, bottom joint fixture still includes spacing elastic webbing, the centre gripping slider orientation one side fixedly connected with spacing elastic webbing in the installation guide slot, spacing elastic webbing's both ends respectively with the inner wall fixed connection of installation guide slot.

As an optimized technical scheme, the stacking mechanism of the lithium battery PACK module further comprises an auxiliary overturning and placing mechanism, wherein the auxiliary overturning and placing mechanism comprises a mounting side bar, an adsorption magnetic sheet and a placing swing groove; the mounting side bar is fixedly connected to the dynamic limiting clamping mechanism; the installation side bar is fixedly connected with an adsorption magnetic sheet, the lower edge of the installation side bar is hinged with a placing swing groove with a notch facing the installation side bar, and the placing swing groove can be mutually attracted with the adsorption magnetic sheet. The auxiliary overturning and placing mechanism is more convenient for taking small parts, and the using convenience of the stacking mechanism is effectively improved.

As the optimized technical scheme, the auxiliary overturning and placing mechanism further comprises a driving end button, and the driving end button is fixedly connected with one end of the placing swing groove. The hand-held driving end button can be rotated to open or be buckled with the placing swing groove, and the operation is convenient.

As the technical scheme of optimizing, supplementary upset placing mechanism still includes the spacer, place along length direction interval fixedly connected with a plurality of spacers in the pendulum groove, the edge of spacer with place the notch of pendulum groove and flush. The spacer is utilized to separate the inside of the placing pendulum groove, so that the placing pendulum groove can be used for placing various small parts, and different small parts are prevented from being mixed.

The utility model has the advantages that:

1. The elastic mechanism is used as an auxiliary clamping mechanism in the stacking process and can guide the electric cores to be stacked neatly; the elastic mechanism can slowly stretch towards the battery core when being regulated, so that the battery core is prevented from being damaged due to too high clamping speed, and the use safety of the stacking mechanism is effectively improved.

2. The bottom clamping and holding mechanism can realize the quick fixation of base, prevents that the base from appearing the slip phenomenon, has effectively improved stacking mechanism's stability.

3. The auxiliary overturning and placing mechanism is more convenient for taking small parts, and the using convenience of the stacking mechanism is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of a stacking mechanism of a PACK module of a lithium battery according to an embodiment of the present utility model.

Fig. 2 is a schematic structural diagram of the dynamic limit clamping mechanism according to the embodiment of the utility model, in which part of the elastic mechanism and part of the adjusting mechanism are removed.

Fig. 3 is a schematic structural diagram of a bottom clamping and holding mechanism according to an embodiment of the utility model.

Fig. 4 is a schematic structural view of an auxiliary overturning and placing mechanism according to an embodiment of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

As shown in fig. 1, the embodiment of the utility model discloses a stacking mechanism of a lithium battery PACK module, which comprises a base 1, a dynamic limit clamping mechanism 2, a bottom clamping and clamping mechanism 3 and an auxiliary overturning and placing mechanism 4.

As shown in fig. 1 and 2, the dynamic limit clamping mechanism 2 is arranged at the top of the base 1, and the dynamic limit clamping mechanism 2 comprises a transverse limit plate 21, a longitudinal limit plate 22, a transverse adjusting groove 23, a longitudinal adjusting groove 24, a movable limit plate 25, an elastic mechanism 26, an adjusting mechanism 27 and a limit block 28.

The transverse limiting plate 21 and the longitudinal limiting plate 22 are fixedly connected to the top of the base 1, and the transverse limiting plate 21 and the longitudinal limiting plate 22 are of an integral crutch plate structure; two vertical adjusting grooves 23 which are vertically and alternately distributed are penetratingly arranged on the horizontal limiting plate 21, and two vertical adjusting grooves 24 which are vertically and alternately distributed are penetratingly arranged on the vertical limiting plate 22; the movable limiting plates 25 comprise a first group of movable limiting plates 25 and a second group of movable limiting plates 25, the first group of movable limiting plates 25 are arranged parallel to the transverse limiting plates 21, and the second group of movable limiting plates 25 are arranged parallel to the longitudinal limiting plates 22; the position of the transverse adjusting groove 23 is higher than that of the longitudinal adjusting groove 24, and the second group of movable limiting plates 25 are arranged above the first group of movable limiting plates 25; the positions of one end of the first group of movable limiting plates 25 corresponding to the two longitudinal adjusting grooves 24 are respectively provided with bolt holes, and the first group of movable limiting plates 25 can be longitudinally moved to a proper position along the top of the base 1 and then fixedly connected with the longitudinal limiting plates 22 through bolts and nuts, so that the distance between the first group of movable limiting plates 25 and the transverse limiting plates 21 is adjusted and locked; the positions, corresponding to the two transverse adjusting grooves 23, of one end of the second group of movable limiting plates 25 are respectively provided with bolt holes, and the second group of movable limiting plates 25 can be fixedly connected with the transverse limiting plates 21 through bolts and nuts after being transversely moved to a proper position along the top of the first group of movable limiting plates 25, so that the distance between the second group of movable limiting plates 25 and the longitudinal limiting plates 22 is adjusted and locked; an elastic mechanism 26 is arranged on the inner side of the movable limiting plate 25, and an adjusting mechanism 27 can adjust the distance between the elastic mechanism 26 and the movable limiting plate 25; the limiting block 28 is fixedly connected to the middle position of the lower portion of the outer side face of the movable limiting plate 25, and the bottom of the limiting block is flush with the bottom of the movable limiting plate 25.

The elastic mechanism 26 comprises an elastic arc piece 261 and an isolation film piece 262; the elastic arc piece 261 extends from one end of the movable limiting plate 25 to the other end, and the upper part of the elastic arc piece 261 is fixedly connected with the movable limiting plate 25 through an arc structure; the isolation film 262 is adhered to one surface of the elastic arc piece 261 facing the movable limiting plate 25, the isolation film 262 effectively improves the elasticity of the elastic mechanism 26, and the elastic arc piece 261 is prevented from excessively hard damaging the battery cell.

The adjusting mechanism 27 includes a screw 271, a handle 272, a reinforcing rod 273, and a drive plate 274; the screw rod 271 passes through the middle position of the movable limiting plate 25 and is in threaded connection with the movable limiting plate 25; one end of the screw rod 271, which is positioned outside the movable limiting plate 25, is fixedly connected with a handle 272; the reinforcing rod 273 is arranged between the isolating film 262 and the movable limiting plate 25, one end of the reinforcing rod 273 is fixedly connected with one end of the movable limiting plate 25, and the other end of the reinforcing rod 273 is rotatably connected with one end, positioned at the inner side of the movable limiting plate 25, of the screw rod 271; the driving plate 274 extends from one end of the movable limiting plate 25 to the other end, one surface of the driving plate 274 is adhered to the isolation film 262, and the middle position of the other surface of the driving plate 274 is fixedly connected with the reinforcing rod 273.

When stacking the battery cells, the first group of movable limiting plates 25 and the second group of movable limiting plates 25 are respectively adjusted to initial positions according to the size of the lithium battery and locked by bolts and nuts, and the battery cells are placed in a square frame structure formed by the transverse limiting plates 21, the longitudinal limiting plates 22 and the movable limiting plates 25; the elastic mechanism 26 is used as an auxiliary clamping mechanism in the stacking process and can guide the conductive cores to be stacked in order; when all the electric cores are placed, the elastic mechanism 26 can be adjusted to the side far away from the movable limiting plate 25 by the adjusting mechanism 27, so that the final limiting and clamping of the electric cores are completed; the specific adjustment method is that the handle 272 is rotated to drive the screw rod 271 to rotate, the screw rod 271 moves towards the inner side of the movable limiting plate 25 in the rotation process, so that one end of the reinforcing rod 273, which is rotationally connected with the screw rod 271, is driven to move towards one side far away from the movable limiting plate 25, and the reinforcing rod 273 pushes the elastic mechanism 26 to extrude the battery cell through the driving plate 274 until the final limiting clamping of the battery cell is completed; the elastic mechanism 26 can slowly stretch towards the battery cell when being regulated, so that the battery cell is prevented from being damaged due to the fact that the clamping speed is too high, and the use safety of the stacking mechanism is effectively improved.

As shown in fig. 3, two groups of bottom clamping and holding mechanisms 3 are provided, the two groups of bottom clamping and holding mechanisms 3 are symmetrically arranged on two sides of the bottom of the base 1, and the bottom clamping and holding mechanisms 3 comprise a mounting guide groove 31, a holding sliding groove 32, a holding sliding block 33, a limiting elastic belt 34, a swinging outer frame 35 and a driving convex strip 36.

The installation guide groove 31 is formed at the bottom of the base 1, and the installation guide groove 31 extends longitudinally; one side of the installation guide groove 31 is provided with a clamping sliding groove 32 in a penetrating way, a clamping sliding block 33 which is in sliding fit with the clamping sliding groove 32 is arranged in the clamping sliding groove 32, and the top surface and the bottom surface of the clamping sliding block 33 are tightly in sliding fit with the inner wall of the clamping sliding groove 32; a limiting elastic belt 34 is embedded and bonded on one surface of the clamping sliding block 33 facing the inside of the installation guide groove 31, and two ends of the limiting elastic belt 34 are fixedly connected with the inner wall of the installation guide groove 31 respectively, so that the clamping sliding block 33 is elastically connected with the inner wall of the installation guide groove 31; the swing outer frame 35 is arranged at the outer side of the installation guide groove 31, the inner end of the swing outer frame is rotationally connected to the base 1 through a rotating shaft parallel to the installation guide groove 31 in the length direction, the inner end of the swing outer frame 35 is fixedly connected with a driving raised line 36, the inner end cambered surface of the driving raised line 36 is tightly and slidably attached to the outer cambered surface of the clamping sliding block 33, and the driving raised line 36 is in sliding fit with the clamping sliding block 33.

When the base 1 is clamped and fixed, the installation guide groove 31 is clamped outside the placing rod; then the outer end of the swing outer frame 35 is pulled downwards, and the inner end drives the driving convex strip 36 to swing upwards in the process of swinging the outer end of the swing outer frame 35 downwards, so that the clamping sliding block 33 is driven to move along the clamping sliding groove 32 into the installation guide groove 31 against the elasticity of the limiting elastic belt 34; when the swing outer frame 35 swings to the horizontal position, the hand is released, and the holding slide block 33 and the limiting elastic belt 34 tightly hold the placing rod in the installation guide groove 31; when the base 1 is required to be separated from the placing rod, the outer end of the swing outer frame 35 is pulled upwards, the inner end drives the driving convex strip 36 to swing downwards in the process that the outer end of the swing outer frame 35 swings upwards, the clamping sliding block 33 moves outwards of the mounting guide groove 31 along the clamping sliding groove 32 under the elastic action of the limiting elastic belt 34, and the placing rod is loosened; the bottom clamping and holding mechanism 3 can realize the quick fixation of the base 1, prevents the base 1 from sliding, and effectively improves the stability of the stacking mechanism.

As shown in fig. 4, the auxiliary turnover placing mechanisms 4 are provided with two groups, the two groups of auxiliary turnover placing mechanisms 4 are respectively arranged at the outer upper parts of the transverse limiting plate 21 and the longitudinal limiting plate 22, and the auxiliary turnover placing mechanisms 4 comprise mounting side bars 41, adsorption magnetic sheets 42, placing swing grooves 43, isolating sheets 44 and driving end buttons 45.

The mounting side bars 41 of the two groups of auxiliary overturning and placing mechanisms 4 are respectively fixedly connected to the upper parts of the outer side surfaces of the transverse limiting plates 21 and the longitudinal limiting plates 22; the two ends of the installation side bar 41 are respectively embedded and fixed with the adsorption magnetic sheet 42, the lower edge of the installation side bar 41 is hinged with a placing pendulum groove 43 with a notch facing the installation side bar 41, and the placing pendulum groove 43 can be mutually attracted with the adsorption magnetic sheet 42; the placing swing groove 43 is of an arc-shaped groove body structure, and the notch of the placing swing groove 43 is matched with the mounting side bar 41 in size; a plurality of arc-shaped isolating pieces 44 are fixedly connected in the placing pendulum groove 43 at equal intervals along the length direction, the edges of the isolating pieces 44 are flush with the notch of the placing pendulum groove 43, and the isolating pieces 44 are utilized to separate the inside of the placing pendulum groove 43, so that various small parts can be placed in the placing pendulum groove 43, and different small parts are prevented from being mixed; the driving end button 45 is fixedly connected to one end of the placing pendulum groove 43, the driving end button 45 is held by a hand to rotatably open or buckle the placing pendulum groove 43, and the operation is convenient; the auxiliary overturning and placing mechanism 4 enables small parts to be taken more conveniently, and the using convenience of the stacking mechanism is effectively improved.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. The utility model provides a stacking mechanism of lithium cell PACK module which characterized in that: comprises a base and a dynamic limit clamping mechanism; the dynamic limiting clamping mechanism comprises a transverse limiting plate, a longitudinal limiting plate, a movable limiting plate, an elastic mechanism and an adjusting mechanism; the transverse limiting plate and the longitudinal limiting plate are fixedly connected to the base; the movable limiting plates comprise a first group of movable limiting plates and a second group of movable limiting plates, the first group of movable limiting plates are parallel to the transverse limiting plates and can adjust and lock the distance between the movable limiting plates and the transverse limiting plates, and the second group of movable limiting plates are parallel to the longitudinal limiting plates and can adjust and lock the distance between the movable limiting plates and the longitudinal limiting plates; the inner side of the movable limiting plate is provided with an elastic mechanism, and the adjusting mechanism can adjust the distance between the elastic mechanism and the movable limiting plate.

2. The stacking mechanism of a lithium battery PACK module according to claim 1, wherein: the transverse limiting plate is provided with a transverse adjusting groove in a penetrating mode, and the longitudinal limiting plate is provided with a longitudinal adjusting groove in a penetrating mode; the first group of movable limiting plates are fixedly connected with the longitudinal limiting plates through bolts and nuts; the bolt hole is seted up to the position that one end of second group activity limiting plate corresponds the horizontal adjustment tank, and the second group activity limiting plate can pass through bolt and nut with horizontal limiting plate fixed connection.

3. The stacking mechanism of a lithium battery PACK module according to claim 1, wherein: the dynamic limiting clamping mechanism further comprises a limiting block, wherein the limiting block is fixedly connected to the middle position of the lower portion of the outer side face of the movable limiting plate, and the bottom of the limiting block is flush with the bottom of the movable limiting plate.

4. The stacking mechanism of a lithium battery PACK module according to claim 1, wherein: the elastic mechanism comprises an elastic arc piece and an isolation film, wherein the upper part of the elastic arc piece is fixedly connected with the movable limiting plate through an arc structure, and the isolation film is fixedly connected with one surface of the elastic arc piece, which faces the movable limiting plate.

5. The stacking mechanism of a lithium battery PACK module according to claim 1, wherein: the adjusting mechanism comprises a screw rod, a handle, a reinforcing rod and a driving plate; the screw rod passes through the middle position of the movable limiting plate and is in threaded connection with the movable limiting plate; one end of the screw rod, which is positioned at the outer side of the movable limiting plate, is fixedly connected with a handle; the reinforcing rod is arranged between the elastic mechanism and the movable limiting plate, one end of the reinforcing rod is fixedly connected with one end of the movable limiting plate, and the other end of the reinforcing rod is rotatably connected with one end, located at the inner side of the movable limiting plate, of the screw rod; one surface of the driving plate is fixedly connected with the elastic mechanism, and the middle position of the other surface of the driving plate is fixedly connected with the reinforcing rod.

6. The stacking mechanism of a lithium battery PACK module according to claim 1, wherein: the stacking mechanism of the lithium battery PACK module further comprises a bottom clamping and clamping mechanism, wherein the bottom clamping and clamping mechanism comprises a mounting guide groove, a clamping sliding block, a swinging outer frame and a driving convex strip; the installation guide groove is formed in the base; one side of the installation guide groove is provided with a clamping sliding groove in a penetrating way, and a clamping sliding block in sliding fit with the clamping sliding groove is arranged in the clamping sliding groove; the clamping sliding block is elastically connected with the inner wall of the installation guide groove; the swing outer frame is arranged on the outer side of the installation guide groove and is rotationally connected to the base through a rotating shaft parallel to the installation guide groove in the length direction, a driving convex strip is fixedly connected to the inner end of the swing outer frame, and the driving convex strip is in sliding fit with the clamping sliding block.

7. The stacking mechanism of a lithium battery PACK module according to claim 6, wherein: the bottom clamping and holding mechanism further comprises a limiting elastic belt, one surface of the holding sliding block, which faces the inside of the installation guide groove, is fixedly connected with the limiting elastic belt, and two ends of the limiting elastic belt are respectively fixedly connected with the inner wall of the installation guide groove.

8. The stacking mechanism of a lithium battery PACK module according to claim 1, wherein: the stacking mechanism of the lithium battery PACK module further comprises an auxiliary overturning and placing mechanism, wherein the auxiliary overturning and placing mechanism comprises a mounting side bar, an adsorption magnetic sheet and a placing swing groove; the mounting side bar is fixedly connected to the dynamic limiting clamping mechanism; the installation side bar is fixedly connected with an adsorption magnetic sheet, the lower edge of the installation side bar is hinged with a placing swing groove with a notch facing the installation side bar, and the placing swing groove can be mutually attracted with the adsorption magnetic sheet.

9. The stacking mechanism of a lithium battery PACK module according to claim 8, wherein: the auxiliary overturning and placing mechanism further comprises a driving end button, and the driving end button is fixedly connected to one end of the placing swing groove.

10. The stacking mechanism of a lithium battery PACK module according to claim 8, wherein: the auxiliary overturning placing mechanism further comprises a spacer, a plurality of spacers are fixedly connected in the placing pendulum groove along the length direction at intervals, and the edges of the spacers are flush with the notch of the placing pendulum groove.