CN220751593U - Device for testing scratch of battery pack - Google Patents

Abstract

The utility model discloses a device for testing battery packs, which comprises: the device comprises a test board, a plurality of protruding mechanisms, a sliding rail, a battery pack assembly mechanism and a driving mechanism; the test bench is provided with a plurality of mounting holes, the mounting holes are used for mounting the protruding mechanisms, and when different protruding structures are mounted in the mounting holes, the heights of the protruding structures in the vertical direction are the same or different; the protruding mechanism is used as an obstacle when a scratch test is performed; the sliding rail is fixedly arranged on the test bench, and the battery pack assembly mechanism is in sliding connection with the sliding rail; the battery pack assembling mechanism comprises an assembling component, wherein the assembling component is used for fixing the battery pack and moves up and down along with the height change of the protruding mechanism when the battery pack passes through the protruding mechanisms with different heights; the driving mechanism is connected with the battery pack assembling mechanism and is used for driving the battery pack assembling mechanism to slide on the sliding rail so that the battery pack passes through the protruding mechanism.

Description

Device for testing scratch of battery pack

Technical Field

The embodiment of the utility model relates to a testing technology, in particular to a device for testing battery packs.

Background

The new energy vehicle has zero pollution emission in the running process, the environment is well protected, and the main power of the new energy vehicle is a battery, so that the safety test of the battery pack of the new energy vehicle is unavoidable.

In the actual use process of a new energy vehicle, the bottom protection of the power battery is also very important. Under the working condition that wheels pass through a concave pit, a convex object or a stone pavement, the bottom of a power battery of the pure electric vehicle is extremely easy to strike and scratch, the bottom of the battery is easy to damage, the damage is hidden, and even some accidents are not caused by short-circuit fire at the moment, but the follow-up safety cannot be ensured.

In order to further verify the safety state of the battery after the bottom of the battery pack of the new energy vehicle is scratched by foreign objects, new energy vehicle battery pack simulation test equipment capable of carrying out scratch test needs to be developed, and in the prior art, a system capable of effectively simulating various road conditions and flexibly carrying out scratch test is lacking.

Disclosure of Invention

The utility model provides a device for a battery pack scratch test, which aims to flexibly realize the scratch test of a battery pack.

The embodiment of the utility model provides a device for testing battery packs, which comprises: the device comprises a test board, a plurality of protruding mechanisms, a sliding rail, a battery pack assembly mechanism and a driving mechanism;

the test bench is provided with a plurality of mounting holes, the mounting holes are used for mounting the protruding mechanisms, and when different protruding structures are mounted in the mounting holes, the heights of the protruding structures in the vertical direction are the same or different;

the protruding mechanism is used as an obstacle for scratch test;

the sliding rail is fixedly arranged on the test bench, and the battery pack matching mechanism is in sliding connection with the sliding rail;

the battery pack assembling mechanism comprises an assembling component, wherein the assembling component is used for fixing a battery pack and moves up and down along with the change of the heights of the protruding mechanisms when the battery packs pass through the protruding mechanisms with different heights;

the driving mechanism is connected with the battery pack assembly mechanism and is used for driving the battery pack assembly mechanism to slide on the sliding rail so that the battery pack passes through the protruding mechanism.

Optionally, the protrusion mechanism includes: the device comprises a bulge, an upper flange, a lower flange and a stud;

the upper flange plate is connected with the protruding part and the lower flange plate respectively, and the lower flange plate is connected with the stud;

the stud is used for being connected with the mounting hole.

Optionally, the battery pack assembly mechanism further includes: a linkage frame and a sliding seat;

the linkage frame and the assembly component are respectively and fixedly connected with the sliding seat;

the linkage frame is also used for being connected with the driving mechanism, and the sliding seat is also used for being connected with the sliding rail in a sliding way.

Optionally, the assembly component includes: the device comprises a right-angle frame plate, a sliding block, an adapter plate, a limiting shaft and a first pressure spring;

the right-angle frame plate comprises a first plate and a second plate which are vertically arranged;

the first plate is fixedly connected with the sliding seat;

the first plate is also provided with a chute, and the sliding block is embedded in the chute and is in sliding connection with the chute;

the second plate is provided with a limiting hole, and the limiting shaft penetrates through the limiting hole and is fixedly connected with the sliding block;

two ends of the first pressure spring are fixedly connected with the limiting hole and the sliding block respectively, and the first pressure spring is sleeved on the limiting shaft;

the adapter plate is fixedly connected with the sliding block and used for fixedly mounting the battery pack.

Optionally, the assembly component further includes: the device comprises a limiting top plate, a limiting stud and a second pressure spring;

the first end of the limiting shaft is fixedly connected with the sliding block, and the second end of the limiting shaft penetrates through the limiting hole and is fixedly connected with the limiting top plate;

the limiting top plate is further provided with a screw hole, the screw hole is used for installing the limiting stud, the limiting stud passes through the screw hole and then approaches the limiting top plate, and a gap is formed between the limiting stud and the limiting top plate;

and two ends of the second pressure spring are respectively fixed at positions corresponding to the screw holes and the limiting top plate and sleeved on the limiting stud.

Optionally, the assembly component further comprises an auxiliary support ring;

one end of the second pressure spring is fixed at a position corresponding to the limiting top plate through the auxiliary supporting ring.

Optionally, the driving mechanism includes: the device comprises a swing cylinder, a swing arm and a transmission connecting rod;

the swing cylinder is fixedly connected with the test bench;

the swing cylinder is connected with the transmission connecting rod through the swing arm, and the transmission connecting rod is connected with the battery pack assembly mechanism.

Optionally, the swing arm is provided with an adjusting screw, a transmission sliding column and a locking stud;

the swing arm is provided with a channel, and the adjusting screw is arranged in the channel;

the first end of the transmission connecting rod is fixedly connected with the battery pack assembling mechanism, and the second end of the transmission connecting rod is rotatably connected with the transmission sliding column;

the transmission slide column is in sliding connection with the adjusting screw rod through threads, and the locking stud is used for fixing the transmission slide column at a designated position on the adjusting screw rod;

the swing arm is used for driving the battery pack assembly mechanism to do linear reciprocating motion along the sliding rail.

Optionally, the sliding rail is divided into a first sliding rail and a second sliding rail, and the battery pack assembly mechanism is divided into a first battery pack assembly mechanism and a second battery pack assembly mechanism;

the first battery pack assembly mechanism is used for being in sliding connection with the first sliding rail, and the second battery pack assembly mechanism is used for being in sliding connection with the second sliding rail.

Optionally, the first sliding rail and the second sliding rail are cylindrical sliding rails.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a device for testing battery packs, which comprises a plurality of protruding mechanisms with adjustable horizontal positions and identical or different shapes, wherein the horizontal heights of the protruding mechanisms at the designated positions can be adjusted to effectively simulate a plurality of different test road conditions;

the device is also provided with a battery pack assembly mechanism, the battery pack assembly mechanism comprises an assembly component, the assembly component is used for fixing the battery pack, and when the battery pack passes through the protruding mechanisms with different heights, the battery pack moves up and down along with the height change of the protruding mechanisms, based on the battery pack assembly mechanism, the actual mounting mode of the battery pack on a vehicle can be simulated, the test reduction degree is high, and the reliability of the test result is high;

the device is also provided with a sliding rail and a driving mechanism, and the driving mechanism drives the battery pack assembly mechanism to move on the sliding rail, so that the movement of a vehicle can be simulated, and the required movement stroke during testing is ensured.

Drawings

Fig. 1 is a block diagram of an apparatus for a battery pack scratch test in an embodiment;

FIG. 2 is a schematic view of a cam mechanism in an embodiment;

FIG. 3 is a schematic view of the structure of the assembly component in the embodiment;

FIG. 4 is a schematic view of another mounting assembly configuration in an embodiment;

FIG. 5 is a schematic view of the driving mechanism in the embodiment;

FIG. 6 is a schematic diagram of a swing arm structure in an embodiment;

fig. 7 is a schematic structural view of another apparatus for a battery pack scratch test in the embodiment;

fig. 8 is a schematic view of another view angle assembly component structure in an embodiment.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

Fig. 1 is a block diagram of a structure of an apparatus for a battery pack scratch test in an embodiment, referring to fig. 1, the apparatus includes: test bench 100, a plurality of protruding mechanisms (1-n), slide rail 200, battery pack assembly mechanism 300, and driving mechanism 400;

the test bench 100 is provided with a plurality of mounting holes for mounting the protruding mechanisms (1-n), and when different protruding structures are mounted in the mounting holes, the heights of the protruding structures in the vertical direction are the same or different;

the bulge mechanisms (1-n) are used as barriers for scratch test;

the sliding rail 200 is fixedly arranged on the test bench 100, and the battery pack assembly mechanism 300 is in sliding connection with the sliding rail 200;

the battery pack assembly mechanism 300 includes an assembly member for fixing the battery pack 1 and moving up and down as the height of the protruding mechanism varies when the battery pack 1 passes through the protruding mechanisms having different heights;

the driving mechanism 400 is connected with the battery pack assembling mechanism 300, and the driving mechanism 400 is used for driving the battery pack assembling mechanism 300 to slide on the slide rail so that the battery pack 1 passes through the protruding mechanisms (1-n).

In this solution, the shape and number of the sliding rails 200 are not limited, and they can be freely set according to the test requirement, for example, the sliding rails 200 can be linear sliding rails, curved sliding rails, annular sliding rails, etc.

In this scheme, do not limit to the shape of protruding portion (that is, the part that contacts with the battery package in the test) of protruding mechanism, it can freely set for according to the test demand, and the shape of protruding portion of different protruding mechanisms can be different.

In the scheme, the mode that the protruding mechanism is arranged in the mounting hole is not limited, for example, the protruding mechanism can be fixed in the mounting hole in a plugging mode, a threaded connection mode and the like;

wherein, can adjust the protruding mechanism to the height of settlement (protruding portion top and test bench mesa's distance) through adjusting protruding mechanism's setting depth in the mounting hole.

In this scheme, when presuming to test, battery package 1 is fixed on assembly, and battery package 1 is less than the minimum height of protruding mechanism of settlement from test table surface's distance.

In this embodiment, the specific structure of the assembly component is not limited, for example, the assembly component may move up and down along with the protrusion mechanism (passive) on the body of the battery pack assembly mechanism 300 by means of a chute, a slide rail, or the like.

In this embodiment, the specific type of the driving mechanism 400 is not limited, and it may be set according to the requirement, for example, the driving mechanism 400 may be a screw driving mechanism, a gear driving mechanism, or the like.

The embodiment provides a device for testing battery packs, which comprises a plurality of protruding mechanisms with adjustable horizontal positions and identical or different shapes, wherein the horizontal heights of the protruding mechanisms at the designated positions can be adjusted to effectively simulate a plurality of different test road conditions;

the device is also provided with a battery pack assembly mechanism, the battery pack assembly mechanism comprises an assembly component, the assembly component is used for fixing the battery pack, and when the battery pack passes through the protruding mechanisms with different heights, the battery pack moves up and down along with the height change of the protruding mechanisms, based on the battery pack assembly mechanism, the actual mounting mode of the battery pack on a vehicle can be simulated, the test reduction degree is high, and the reliability of the test result is high;

the device is also provided with a sliding rail and a driving mechanism, and the driving mechanism drives the battery pack assembly mechanism to move on the sliding rail, so that the movement of a vehicle can be simulated, and the required movement stroke during testing is ensured.

Fig. 2 is a schematic view of a cam mechanism in an example, referring to fig. 2, in one possible embodiment the cam mechanism comprises: a boss 11, an upper flange 12, a lower flange 13 and a stud 14;

the upper flange plate 12 is respectively connected with the protruding part 11 and the lower flange plate 13, and the lower flange plate 13 is connected with the stud 14.

Illustratively, in this scheme, bellying 11 and last ring flange 12 can integrated into one piece, or bellying 11 can weld on last ring flange 12, and when setting up bellying 11 and last ring flange 12 integrated into one piece, bellying mechanism's structural strength is better, and stability is higher.

For example, in this embodiment, the shape of the protruding portion 11 may be designed according to actual requirements, so as to be applied to test experiments for simulating different road surfaces.

In this embodiment, the upper flange 11 and the lower flange 12 may be connected by bolts and nuts, so that the upper flange 11 provided with the different protrusions 11 is fixed on the lower flange 12, thereby realizing the battery pack scratch or impact test using the protrusions 11 of different shapes.

Illustratively, in this embodiment, the lower flange 12 is fixed on the stud 14, and the stud 14 is used to facilitate connection of the protruding mechanism with the test stand 1 and to adjust the horizontal height of the protruding portion 11 before the test, by matching the threads of the stud 14 with the mounting holes (threaded holes) longitudinally provided on the test stand 100.

Based on the solution shown in fig. 1, in one possible embodiment, the battery pack assembly mechanism further comprises: a linkage frame and a sliding seat;

the linkage frame and the assembly component are respectively and fixedly connected with the sliding seat;

the linkage frame is also used for being connected with the driving mechanism, and the sliding seat is also used for sliding connection of the sliding rail.

In the scheme, the driving mechanism is connected with the sliding seat through the linkage frame, and when the driving mechanism works, the sliding seat is driven to move on the sliding rail through the linkage frame.

In this embodiment, the structure of the linkage frame is not limited, and the linkage frame may be used to change the direction of the output force (torque) of the driving mechanism, or the linkage frame may be directly used to fixedly connect the driving mechanism and the sliding seat.

Exemplary, in this scheme, the battery package sets up on assembly component, assembly component and sliding seat fixed connection, and when the sliding seat moved on the slide rail, drive assembly component along slide rail direction motion, and then battery package along slide rail direction motion.

Fig. 3 is a schematic view of the structure of the assembly member in an example, referring to fig. 3, when the battery pack assembly mechanism includes a slide mount, in one embodiment, the assembly member includes: the right-angle frame plate, the sliding block 23, the adapter plate 24, the limiting shaft 25 and the first pressure spring 26;

the right-angle frame plate comprises a first plate 21 and a second plate 22 which are vertically arranged, and the first plate 21 (used for being fixedly connected with the sliding seat);

the first plate 21 is also provided with a chute 27, and the sliding block 23 is embedded in the chute 27 and is in sliding connection with the chute 27;

the second plate 22 is provided with a limiting hole, and a limiting shaft 25 passes through the limiting hole and is fixedly connected with the sliding block 23;

two ends of the first pressure spring 26 are fixedly connected with the limiting hole and the sliding block 23 respectively, and the first pressure spring 26 is sleeved on the limiting shaft;

the adapter plate 24 is fixedly connected with the slide block 23, and the adapter plate 24 is used for fixedly mounting the battery pack.

Illustratively, in this embodiment, the sliding block 23, the adapter plate 24, the limiting shaft 25, and the first compression spring 26 are provided in a set, and the number of sets used may be set according to the requirement (for example, two sets of sliding blocks, the adapter plate, the limiting shaft, and the first compression spring are configured in the embodiment shown in fig. 3).

Illustratively, in this embodiment, the adapter plate 24 is fixedly connected to the slide block 23, the battery pack is fixed on the adapter plate 24, and the slide block 23 can move up and down in the chute 27 along the direction in which the chute 27 is provided;

when the battery pack is scratched or impacted by the convex mechanisms with different shapes, the adapter plate 24 drives the sliding block 23 to move when the convex mechanisms generate upward force on the battery pack, so that the upward movement of the battery pack during scratching or impacting is simulated.

Illustratively, in this embodiment, the limiting shaft 25 serves to enhance the stability of the movement of the slider 23, the battery pack, the adapter plate 24, and the slider 23 as the slider 23 moves along the chute 27.

In the present embodiment, the first compression spring 26 is sleeved on the limiting shaft 25, and two ends of the first compression spring 26 are fixedly connected with the sliding block 23 and the second plate 22 (the position of the limiting hole) respectively;

when the sliding block 23 moves upwards along the sliding groove 27 (the battery pack passes through the protruding mechanism), the first pressure spring 26 is compressed to a certain extent, and a certain buffering effect is achieved on the upward movement of the sliding block 23;

when the battery pack is separated from the protruding mechanism, the first pressure spring 26 resets, plays a certain buffering role on the downward movement of the sliding block 23, and damage to the sliding block 23 is avoided.

Illustratively, in this embodiment, a plurality of bolting holes for mounting (to-be-tested) battery packs may be uniformly distributed on the adapter plate 24, and the battery packs are fixed on the adapter plate 24 through the bolting holes and bolts.

Fig. 4 is a schematic view of another assembly component in an example, referring to fig. 4, in one possible embodiment, based on the scheme shown in fig. 3, the assembly component further includes: a limit top plate 28, a limit stud 29 and a second compression spring 210;

the first end of the limiting shaft 25 is fixedly connected with the sliding block 23, and the second end of the limiting shaft 25 passes through the limiting hole and is fixedly connected with the limiting top plate 28;

the limiting top plate 28 is also provided with a screw hole, the screw hole is used for installing a limiting stud 29, the limiting stud 29 passes through the screw hole and then approaches the limiting top plate 28, and a gap is formed between the limiting stud 29 and the limiting top plate 28;

two ends of the second compression spring 210 are respectively fixed at positions corresponding to the screw holes and the limiting top plate 28, and are sleeved on the limiting stud 29.

In this scheme, the limiting top plate 28 is fixedly connected with the limiting shaft 25, and when the limiting shaft 25 moves up and down along with the sliding block 23, the limiting top plate 28 moves up and down along with the limiting shaft 25;

a gap exists between the limiting stud 29 and the limiting top plate 28, the size of the gap between the limiting stud 29 and the limiting top plate 28 is adjustable, and the limiting stud 29 is used for limiting the lowest position of the limiting top plate 28 when moving downwards, so as to limit the lowest position of the sliding block 23 in the sliding groove 27;

based on the limiting top plate 28, the lowest position of the docking plate 24 can be realized and limited, so that the lowest height of the mounted battery pack is limited conveniently, and the simulation of chassis with different heights of the vehicle is realized.

Illustratively, in this embodiment, the second compression spring 210 buffers the movement of the limiting top plate 28 when the limiting top plate 28 moves up and down.

Referring to fig. 4, in an embodiment, at least one reinforcing rib may be further disposed between the first plate 21 and the second plate 22, and a right angle reinforcing plate may be further disposed on a side of the first plate 21 contacting the sliding seat, and the arrangement of the reinforcing rib and the right angle reinforcing plate is advantageous for improving structural strength of the assembly.

Referring to fig. 4, in an alternative embodiment, the assembly further includes an auxiliary supporting ring 211, and one end of the second compression spring 210 is fixed at a position corresponding to the limiting top plate 28 by the auxiliary supporting ring 211.

In this solution, the auxiliary supporting ring 211 rotates on the limit stud 29 and is in pressing fit with the bottom surface of the limit top plate 28, and the effect of the limit stud 29 on limiting the limit top plate 28 can be improved by pressing the bottom surface of the limit top plate 28 by the auxiliary supporting ring 211;

the stability of the auxiliary supporting ring 211 and the limit stud 29 after position adjustment can be improved by the second compression spring 210, both ends of which are respectively connected with the auxiliary supporting ring 211 and the second plate 22.

Fig. 5 is a schematic view of the structure of the driving mechanism in an example, referring to fig. 5, in one possible embodiment, based on the scheme shown in fig. 1, the driving mechanism includes: a swing cylinder 31, a swing arm 32, and a transmission link 33;

the swing cylinder 31 is fixedly connected with the test bench 100;

the swing cylinder 31 is connected with a transmission link 33 through a swing arm 32, and the transmission link 33 is connected with a battery pack assembling mechanism 300.

In this embodiment, one end of the swing arm 32 is connected to the output shaft of the swing cylinder 31, and when the output shaft of the swing cylinder 31 is set to rotate, the swing arm 32 is driven to do circular motion with the output shaft as the center of a circle.

Illustratively, in this embodiment, the end of the swing arm 32 connected to the transmission link 33 and the end of the transmission link 33 connected to the battery pack assembly mechanism 300 are configured to have a circumferential degree of freedom;

that is, the swing arm 32 may be rotatably connected to the transmission link 33 through a rotation shaft, and the transmission link 33 is rotatably connected to the battery pack assembly mechanism 300 through a rotation shaft, wherein the axial directions of the two rotation shafts are set to be parallel to the vertical direction.

Illustratively, in this embodiment, when the swing arm 32 moves circumferentially around the center of the circle, the swing arm 32 drives the transmission link 33 to reciprocate in the direction in which the slide rail is disposed.

Specifically, in the present solution, after the swing cylinder 31 is powered on and started, the swing arm 32 can be driven to perform a rotation and circumferential movement with the axis of the output shaft of the swing cylinder 3 as the center, so that one end of the transmission link 33 is driven by the swing arm 32 to perform a circumferential rotation and circumferential movement;

at this time, the other end of the transmission link 33 performs a reciprocating push-pull action on the battery pack assembly mechanism 300, so as to drive the battery pack assembly mechanism 300 to perform a reciprocating sliding motion on the slide rail 200;

the swing cylinder 31 is adopted, so that the battery pack assembly mechanism 300 moves at a high speed, and the movement stroke can be effectively ensured.

Fig. 6 is a schematic view of the structure of a swing arm in an example, referring to fig. 6, in one possible embodiment, the swing arm is configured with an adjusting screw 41, a drive spool 42, and a locking stud 43, based on the scheme shown in fig. 5;

the swing arm is provided with a channel 44, and the adjusting screw 41 is arranged in the channel 44;

the first end of the transmission link 33 is fixedly connected with the battery pack assembly mechanism 300 (in a rotating manner), and the second end of the transmission link 33 is rotatably connected with the transmission slide column 42;

the drive spool 42 is slidably connected to the adjustment screw 41 by threads, and the locking stud 43 is used to secure the drive spool 42 in a designated position on the adjustment screw 41.

Illustratively, in this embodiment, two ends of the adjusting screw 41 rotate at two ends in the channel 44, the lower end of the driving slide column 42 is in threaded connection with the adjusting screw 41, and the driving slide column 42 can move on the adjusting screw 41 to adjust the position of the driving slide column in the channel 44;

the distance between the transmission slide column 42 and the center of the output shaft of the swing cylinder 51 can be adjusted by adjusting the position of the transmission slide column 42 in the channel 44, so that the maximum distance that the swing arm 32 moves for a circle to drive the battery pack assembly mechanism 300 to slide on the slide rail 200 is adjusted, and the testing requirements of different conditions are met;

the upper end of the transmission slide column 42 is rotationally connected with the transmission connecting rod 33, and the transmission connecting rod 33 can rotate along the upper end of the transmission slide column 42 in the axial direction of the transmission slide column 42;

the locking stud 43 is in threaded fit on the bottom surface of the transmission slide column 42, can be propped against the lower end of the adjusting screw 41, and can lock the adjusted position of the transmission slide column 42.

Based on the scheme shown in fig. 1, in one possible embodiment, the sliding rail is divided into a first sliding rail and a second sliding rail, and the battery pack assembling mechanism is divided into a first battery pack assembling mechanism and a second battery pack assembling mechanism;

the first battery pack assembly mechanism is used for being in sliding connection with the first sliding rail, and the second battery pack assembly mechanism is used for being in sliding connection with the second sliding rail.

In the scheme, the first sliding rail and the second sliding rail are arranged in parallel, and the first battery pack assembling mechanism and the second battery pack assembling mechanism are used for supporting the battery pack;

when the first battery pack assembling mechanism and the second battery pack assembling mechanism are set to move on the corresponding sliding rails, the battery packs are driven to pass through the area where the protruding mechanisms are arranged, so that scratch and/or collision test is realized.

On the basis that the device comprises a first sliding rail and a second sliding rail, in one implementation scheme, the first sliding rail and the second sliding rail are cylindrical sliding rails.

Illustratively, in this scheme, the resistance of battery package assembly mechanism when moving on the slide rail can be reduced to the adoption of cylindrical slide rail.

Fig. 7 is a schematic structural view of another apparatus for a battery pack scratch test in example, referring to fig. 7, in one embodiment, the apparatus includes:

the test bench 100, the first slide rail 2001, the second slide rail 2002 and the swinging cylinder 31 are installed on the test bench 100;

the test bench 100 is also provided with a plurality of mounting holes, and each mounting hole is internally provided with a protruding mechanism 1000;

the first slide 2001 is provided with a first battery pack mechanism 3001, and the second slide 2002 is provided with a second battery pack mechanism 3002;

the linkage frame 212 is fixedly connected with the first battery pack assembly mechanism 3001 and the second battery pack assembly mechanism 3002 respectively;

the swing cylinder 31 is connected to a transmission link 33 through a swing arm 32, and the transmission link 33 is connected to a link frame 212.

Fig. 8 is a schematic view of another view angle assembly component structure in the embodiment, referring to fig. 4 and 8, in this embodiment, the first battery pack assembly mechanism 3001 and the second battery pack assembly mechanism 3002 have the same structure, taking one battery pack assembly mechanism as an example, the battery pack assembly mechanism includes an assembly component, and the assembly component includes:

the right-angle frame plate, the sliding block 23, the adapter plate 24, the limiting shaft 25 and the first pressure spring 26;

the right-angle frame plate comprises a first plate 21 and a second plate 22 which are vertically arranged, and the first plate 21 (used for being fixedly connected with the sliding seat 213);

the first plate 21 is also provided with a chute 27, and the sliding block 23 is embedded in the chute 27 and is in sliding connection with the chute 27;

the second plate 22 is provided with a limiting hole, and a limiting shaft 25 passes through the limiting hole and is fixedly connected with the sliding block 23;

two ends of the first pressure spring 26 are fixedly connected with the limiting hole and the sliding block 23 respectively, and the first pressure spring 26 is sleeved on the limiting shaft;

the adapter plate 24 is fixedly connected with the sliding block 23, and the adapter plate 24 is used for fixedly mounting a battery pack;

the mounting assembly further comprises: a limit top plate 28, a limit stud 29 and a second compression spring 210;

the first end of the limiting shaft 25 is fixedly connected with the sliding block 23, and the second end of the limiting shaft 25 passes through the limiting hole and is fixedly connected with the limiting top plate 28;

the limiting top plate 28 is also provided with a screw hole, the screw hole is used for installing a limiting stud 29, the limiting stud 29 passes through the screw hole and then approaches the limiting top plate 28, and a gap is formed between the limiting stud 29 and the limiting top plate 28;

two ends of the second pressure spring 210 are respectively fixed at positions corresponding to the screw holes and the limiting top plate 28 and sleeved on the limiting stud 29;

the assembly further comprises an auxiliary supporting ring 211, and one end of the second pressure spring 210 is fixed at a position corresponding to the limiting top plate 28 through the auxiliary supporting ring 211;

at least one reinforcing rib may be further provided between the first plate 21 and the second plate 22, and a right angle reinforcing plate may be further provided at a side of the first plate 21 contacting the sliding seat 213.

In this solution, the working principle and the working manner of the assembly component are the same as those of the corresponding content recorded in the solution shown in fig. 4, and the specific content will not be described in detail.

Referring to fig. 6, in the present solution, the swing arm is configured with an adjusting screw 41, a drive spool 42, and a locking stud 43;

the swing arm is provided with a channel 44, and the adjusting screw 41 is arranged in the channel 44;

the first end of the transmission link 33 is fixedly connected with the battery pack assembly mechanism 300 (in a rotating manner), and the second end of the transmission link 33 is rotatably connected with the transmission slide column 42;

the drive spool 42 is slidably connected to the adjustment screw 41 by threads, and the locking stud 43 is used to secure the drive spool 42 in a designated position on the adjustment screw 41.

In this embodiment, the working principle and the working manner of the swing cylinder 31, the swing arm 32, and the transmission link 33 are the same as those of the embodiments shown in fig. 5 and 6, and detailed descriptions thereof are omitted.

Referring to fig. 2, in this embodiment, the bump mechanism 1000 includes: a boss 11, an upper flange 12, a lower flange 13 and a stud 14;

the upper flange plate 12 is respectively connected with the protruding part 11 and the lower flange plate 13, and the lower flange plate 13 is connected with the stud 14.

In this embodiment, the first slide rail 2001 and the second slide rail 2002 are cylindrical slide rails.

In the scheme, the shape of the protruding part can be designed and processed according to actual requirements so as to simulate test tests of different pavements, the protruding part is welded with the upper flange plate, and the integrated structure is good in structural strength and high in stability;

the protruding mechanism can be installed in a longitudinally arranged installation (thread) hole on the test bench through a stud thread, and the arrangement of the stud is convenient for the connection with the test bench and is also convenient for adjusting the horizontal height of the protruding part during the test;

the position of the transmission slide column in the slide way can be changed by rotating the adjusting screw, so that the distance between the transmission slide column and the center of the output shaft of the swing cylinder is adjusted, the maximum distance that the swing arm body moves for a circle to drive the battery pack assembly mechanism to slide on the slide rail is adjusted, and the testing requirements of different conditions are met;

adopt the swing cylinder for battery package assembly devices moves the speed very fast, and can effectively guarantee the motion stroke.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. A device for battery pack scratch testing, comprising: the device comprises a test board, a plurality of protruding mechanisms, a sliding rail, a battery pack assembly mechanism and a driving mechanism;

the test bench is provided with a plurality of mounting holes, the mounting holes are used for mounting the protruding mechanisms, and when different protruding mechanisms are mounted in the mounting holes, the heights of the protruding mechanisms in the vertical direction are the same or different;

the protruding mechanism is used as an obstacle for scratch test;

the sliding rail is fixedly arranged on the test bench, and the battery pack matching mechanism is in sliding connection with the sliding rail;

the battery pack assembling mechanism comprises an assembling component, wherein the assembling component is used for fixing a battery pack and moves up and down along with the change of the heights of the protruding mechanisms when the battery packs pass through the protruding mechanisms with different heights;

the driving mechanism is connected with the battery pack assembly mechanism and is used for driving the battery pack assembly mechanism to slide on the sliding rail so that the battery pack passes through the protruding mechanism.

2. The apparatus for battery pack scratch testing of claim 1, wherein the protrusion mechanism comprises: the device comprises a bulge, an upper flange, a lower flange and a stud;

the upper flange plate is connected with the protruding part and the lower flange plate respectively, and the lower flange plate is connected with the stud;

the stud is used for being connected with the mounting hole.

3. The apparatus for battery pack scratch testing of claim 1, wherein the battery pack assembly mechanism further comprises: a linkage frame and a sliding seat;

the linkage frame and the assembly component are respectively and fixedly connected with the sliding seat;

the linkage frame is also used for being connected with the driving mechanism, and the sliding seat is also used for being connected with the sliding rail in a sliding way.

4. The apparatus for battery pack snagging test of claim 3, wherein said assembly comprises: the device comprises a right-angle frame plate, a sliding block, an adapter plate, a limiting shaft and a first pressure spring;

the right-angle frame plate comprises a first plate and a second plate which are vertically arranged;

the first plate is fixedly connected with the sliding seat;

the first plate is also provided with a chute, and the sliding block is embedded in the chute and is in sliding connection with the chute;

the second plate is provided with a limiting hole, and the limiting shaft penetrates through the limiting hole and is fixedly connected with the sliding block;

two ends of the first pressure spring are fixedly connected with the limiting hole and the sliding block respectively, and the first pressure spring is sleeved on the limiting shaft;

the adapter plate is fixedly connected with the sliding block and used for fixedly mounting the battery pack.

5. The apparatus for battery pack snagging test of claim 4, wherein said assembly further comprises: the device comprises a limiting top plate, a limiting stud and a second pressure spring;

the first end of the limiting shaft is fixedly connected with the sliding block, and the second end of the limiting shaft penetrates through the limiting hole and is fixedly connected with the limiting top plate;

the limiting top plate is further provided with a screw hole, the screw hole is used for installing the limiting stud, the limiting stud passes through the screw hole and then approaches the limiting top plate, and a gap is formed between the limiting stud and the limiting top plate;

and two ends of the second pressure spring are respectively fixed at positions corresponding to the screw holes and the limiting top plate and sleeved on the limiting stud.

6. The apparatus for battery pack snagging test of claim 5 wherein said mounting assembly further comprises an auxiliary support ring;

one end of the second pressure spring is fixed at a position corresponding to the limiting top plate through the auxiliary supporting ring.

7. The apparatus for battery pack scratch test as claimed in claim 1, wherein the driving mechanism comprises: the device comprises a swing cylinder, a swing arm and a transmission connecting rod;

the swing cylinder is fixedly connected with the test bench;

the swing cylinder is connected with the transmission connecting rod through the swing arm, and the transmission connecting rod is connected with the battery pack assembly mechanism.

8. The device for battery pack scratch testing of claim 7, wherein the swing arm is configured with an adjusting screw, a drive spool, and a locking stud;

the swing arm is provided with a channel, and the adjusting screw is arranged in the channel;

the first end of the transmission connecting rod is fixedly connected with the battery pack assembling mechanism, and the second end of the transmission connecting rod is rotatably connected with the transmission sliding column;

the transmission slide column is in sliding connection with the adjusting screw rod through threads, and the locking stud is used for fixing the transmission slide column at a designated position on the adjusting screw rod;

the swing arm is used for driving the battery pack assembly mechanism to do linear reciprocating motion along the sliding rail.

9. The device for testing the battery pack according to claim 1, wherein the sliding rail is divided into a first sliding rail and a second sliding rail, and the battery pack assembling mechanism is divided into a first battery pack assembling mechanism and a second battery pack assembling mechanism;

the first battery pack assembly mechanism is used for being in sliding connection with the first sliding rail, and the second battery pack assembly mechanism is used for being in sliding connection with the second sliding rail.

10. The device for battery pack scratch testing of claim 9, wherein the first and second slide rails are cylindrical slide rails.