CN113262983A

CN113262983A - Battery safety performance detection equipment for new energy automobile

Info

Publication number: CN113262983A
Application number: CN202110570315.XA
Authority: CN
Inventors: 夏庆国; 刘呈呈; 张素香; 梅小云; 王亦栋; 徐杨东; 郑骆荣; 王嘉鑫
Original assignee: Polytechnic College Of Hubei University Of Arts And Sciences
Current assignee: Polytechnic College Of Hubei University Of Arts And Sciences
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-08-17
Anticipated expiration: 2041-05-25
Also published as: CN113262983B

Abstract

The invention discloses a battery safety performance detection device for a new energy automobile, and belongs to the field of battery performance detection. The utility model provides a battery security performance check out test set for new energy automobile, includes the conveyer belt, the conveyer belt is personally submitted closed protruding circular structure along the level and is set up, the conveyer belt inside and outside is fixed with the support and rather than sliding connection's support frame, the conveyer belt bottom is equipped with transmission, the conveyer belt top is the annular equidistant a plurality of test support brackets that have set firmly, conveyer belt one end inboard is equipped with the battery measurement subassembly, the conveyer belt outside is equipped with automatic getting and puts the device. The invention utilizes the battery measuring component to carry out mechanical automatic detection on the batteries conveyed on the conveying belt, and utilizes the automatic picking and placing device to quickly pick out unqualified products identified by the test.

Description

Battery safety performance detection equipment for new energy automobile

Technical Field

The invention relates to the field of battery performance detection, in particular to a battery safety performance detection device for a new energy automobile.

Background

The non-conventional vehicle fuel is used as a power source, advanced technologies in the aspects of power control and driving of the vehicle are integrated, and the formed vehicle with advanced technical principle, new technology and new structure is called as a new energy vehicle.

For deeply implementing the national strategy of developing new energy automobiles, the high-quality sustainable development of the new energy automobile industry in China is promoted, the construction of automobiles in the strong country is accelerated, and all automobile manufacturers start the design and production of new energy automobiles. The new energy automobile mainly takes electric energy as a main power source. This consequently facilitates the production of batteries and self-innovation. The most mainstream of the existing new energy automobiles is the lithium iron phosphate battery, the lithium cobalt battery and the like, and the actual product volume is similar to that of the household No. 5 battery. Therefore, a new energy automobile needs a large battery panel formed by connecting a large number of batteries in parallel and in series. Therefore, the qualification rate of the battery determines the actual endurance mileage and the service life of the new energy automobile.

In order to provide the ex-factory qualified rate of batteries and get rid of a spot check mode to detect the batteries, the battery safety performance detection equipment for the new energy automobile is designed, so that the batteries can be detected efficiently and automatically, and the phenomenon of omission is avoided.

Disclosure of Invention

The invention aims to solve the problems mentioned in the technical background and provides a battery safety performance detection device for a new energy automobile.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a battery security performance check out test set for new energy automobile, includes the conveyer belt, the conveyer belt is personally submitted closed protruding circular structure along the level and is set up, the conveyer belt inside and outside is fixed with the support and rather than sliding connection's support frame, the conveyer belt bottom is equipped with transmission, the conveyer belt top is the annular equidistant a plurality of test support brackets that have set firmly, conveyer belt one end inboard is equipped with the battery measurement subassembly, the conveyer belt outside is equipped with automatic getting and puts the device.

Preferably, the transmission device comprises a first servo motor, a rotating shaft A, a gear A and a gear B;

the automatic transmission device is characterized in that a transmission belt A protrudes downwards from the middle of the bottom surface of the transmission belt, the rotating shaft A is perpendicular to the position below the transmission belt A along the horizontal direction, a rotating wheel A is sleeved on one side of the rotating shaft A and is in friction fit with the transmission belt A, the gear A is sleeved on the other side of the rotating shaft A, the gear B is sleeved on an output shaft of a first servo motor and is in meshed connection with the gear A, and the gear A is a half-tooth gear.

Preferably, the battery measuring component comprises a rectangular test box, both ends all are connected with the power cord about the rectangular test box, the rectangular test box is close to conveyer belt one side and has vertically seted up spout A along the middle part, spout A is inside to be the connecting rod that the symmetry was equipped with sliding connection from top to bottom, the connecting rod bottom extends to the upper and lower both sides of conveyer belt and just to the position of battery, the connecting rod tip all is equipped with electrically conductive connecting seat.

Preferably, the battery measuring subassembly still includes second servo motor, two pivot B along vertical direction parallel arrangement, pivot B locates rectangle test box middle part and has cup jointed the gear C that makes its intermeshing, one of them pivot B tip has cup jointed gear D, gear E has been cup jointed on the second servo motor output shaft, the chain has been cup jointed on the gear E, gear D passes through the chain meshing with gear E and is connected, both ends are equipped with the pivot C parallel with pivot B about the rectangle test box, pivot C passes through drive belt B and is connected with pivot B rotation nearby, connecting rod inner extends the rectangle test box inside and is connected fixedly with drive belt B one side.

Preferably, the inside copper post that is equipped with rather than the intercommunication to the position of power cord of rectangle test box, the vertical middle part of copper post extends and is in unsettled state, the connecting rod sets up for inside cavity, the inside conducting rod of establishing again of connecting rod, conducting rod one end extends to the rectangle test box inside and with copper post sliding connection, the conducting rod other end is connected with electrically conductive connecting seat.

Preferably, the automatic picking and placing device comprises a rotary mechanical arm and a three-jaw disc;

the three-jaw disc is vertically fixed at the end part of the rotary mechanical arm, the three-jaw disc is arranged in an internal middle structure, a limiting plate is arranged in the middle of the three-jaw disc, three limiting grooves with arc structures are formed in the limiting plate, and the limiting grooves are arranged in an annular equidistant mode.

Preferably, the limiting groove outer end is equipped with the slider, be annular equidistant a plurality of three leading trucks that have set firmly on the limiting plate, the slider both ends all extend to on the leading truck and rather than sliding connection, three spout B have been seted up for the position of leading truck to the three-jaw dish, the slider top surface is fixed with the free bearing, the free bearing bottom surface extends to the three-jaw dish below and is connected and be fixed with the claw.

Preferably, a threaded rod in threaded connection with one of the sliding blocks penetrates through the sliding block, the non-threaded part of the threaded rod penetrates through the three-jaw disc and extends to the outer side of the three-jaw disc, and the bottom end of the threaded rod is connected with a third servo motor.

Compared with the prior art, the invention provides a device for detecting the safety performance of a battery for a new energy automobile, which has the following beneficial effects:

(1) the invention provides a battery safety performance detection device for a new energy automobile, which is used for rapidly detecting finished batteries in batches, mechanically controlling the whole process and sorting defective batteries. The conveying belt is characterized in that an annular closed conveying belt is arranged, a plurality of test bearing brackets are arranged on the conveying belt at equal intervals and used for containing batteries, a transmission device is used for driving the conveying belt to rotate in a supporting frame gap, a battery measuring assembly is arranged beside one of the test bearing brackets and used for detecting the batteries passing through the rotation, detection data are fed back, the conveying belt continuously moves at a corner and is used for grabbing the batteries by an automatic taking and placing device, whether the batteries are normally rotated to two sides or not according to the data detected by the battery measuring assembly, qualified batteries and unqualified batteries are distinguished and collected, high efficiency is achieved, automatic detection is carried out on the batteries, and the phenomenon of missed detection is avoided.

(2) The invention relates to a battery measuring assembly which mainly comprises a mechanical transmission structure, wherein a sliding groove A is formed in a rectangular test box, two connecting rods are symmetrically arranged on the sliding groove A, and the two connecting rods synchronously move in opposite directions or in reverse directions by being driven by a second servo motor and are used for connecting the positive electrode and the negative electrode of a battery to detect whether the performance of the battery is normal or not.

(3) According to the invention, the rotary mechanical arm is arranged on one side of the conveying belt, the motor and the wireless control board are arranged on each connecting node of the rotary mechanical arm, each node of the rotary mechanical arm is rotated through remote control, and in addition, the batteries can be rotated after being grabbed by the three-jaw disc to realize the classified collection of the batteries.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the overall top view structure of the present invention;

FIG. 3 is a schematic view of the support frame and the conveyor belt of the present invention;

FIG. 4 is a schematic bottom view of the conveyor and transmission of the present invention;

FIG. 5 is a schematic view of a battery measurement assembly according to the present invention;

FIG. 6 is a schematic diagram of the cross section and internal components of the rectangular test chamber of the present invention;

FIG. 7 is a schematic bottom view of the automatic pick-and-place apparatus of the present invention;

fig. 8 is a schematic diagram of the three-jaw disc and the inner assembly of the present invention.

Description of the figure numbers: 1. a conveyor belt; 2. a support frame; 3. a transmission device; 301. a first servo motor; 302. a rotating shaft A; 303. a gear A; 304. a gear B; 305. a rotating wheel A; 306. a transmission belt A; 4. a test support bracket; 5. a battery measurement assembly; 501. a rectangular test box; 502. a power line; 503. a chute A; 504. a connecting rod; 505. a second servo motor; 506. a rotating shaft B; 507. a gear C; 508. a gear D; 509. a gear E; 510. a rotating shaft C; 511. a chain; 512. a conductive connecting seat; 513. a conductive rod; 514. a copper pillar; 6. an automatic pick-and-place device; 601. rotating the mechanical arm; 602. a three-jaw plate; 603. a limiting plate; 604. a limiting groove; 605. a slider; 606. a guide frame; 607. a chute B; 608. hinging seat; 609. a claw; 610. a threaded rod; 611. and a third servo motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-3, a battery safety performance detection device for a new energy automobile comprises a conveyor belt 1, wherein the conveyor belt 1 is arranged in a closed convex structure along a horizontal plane, a support frame 2 which supports the conveyor belt 1 and is connected with the conveyor belt in a sliding manner is fixed on the inner side and the outer side of the conveyor belt 1, a transmission device 3 is arranged at the bottom end of the conveyor belt 1, a plurality of test support brackets 4 are fixedly arranged on the top surface of the conveyor belt 1 in an annular shape at equal intervals, a battery measuring assembly 5 is arranged on the inner side of one end of the conveyor belt 1, and an automatic taking and placing device 6 is arranged on the outer side of the conveyor belt 1.

The invention provides a battery safety performance detection device for a new energy automobile, which is used for rapidly detecting finished batteries in batches, mechanically controlling the whole process and sorting defective batteries. The conveying belt comprises a conveying belt 1 which is closed in an annular shape, a plurality of test bearing brackets 4 are arranged on the conveying belt 1 at equal intervals and used for containing batteries, a transmission device 3 is used for driving the conveying belt 1 to rotate in a clearance mode on a supporting frame 2, a battery measuring component 5 is arranged beside one test bearing bracket 4 and used for detecting the batteries passing through the rotation mode and feeding back detection data, the conveying belt 1 continuously moves at a corner and is grabbed by an automatic picking and placing device 6, the batteries normally rotate towards two sides or not according to the data detected by the battery measuring component 5, and qualified batteries and unqualified batteries are distinguished and collected.

According to the invention, the automatic taking and placing device 6 is arranged at one end of the conveyor belt 1, so that the battery can be taken down quickly, the other end of the conveyor belt is used for putting the battery, the battery can be automatically detected in a certain process along a straight line through the conveyor belt 1, unqualified batteries can be distinguished quickly, the high-efficiency and quick detection can be realized for large-batch produced batteries, the working efficiency is provided, the high qualified rate of the battery leaving a factory is ensured, and the electric endurance of a new energy automobile is ensured.

Example 2:

referring to fig. 4, the embodiment 1 is different from the above embodiments; the transmission device 3 comprises a first servo motor 301, a rotating shaft A302, a gear A303 and a gear B304;

a transmission belt A306 protrudes downwards from the middle of the bottom surface of the conveyor belt 1, a rotating shaft A302 is perpendicular to the position below the transmission belt A306 along the horizontal direction, a rotating wheel A305 is sleeved on one side of the rotating shaft A302, the rotating wheel A305 is in friction fit with the transmission belt A306, a gear A303 is sleeved on the other side of the rotating shaft A302, a gear B304 is sleeved on an output shaft of the first servo motor 301 and is in meshed connection with the gear A303, and the gear A303 is a half-tooth gear.

In the invention, a transmission device 3 is used for driving a conveyor belt 1 to rotate, specifically, a conveyor belt A306 is fixed on the bottom surface of the conveyor belt 1, a rotating wheel A305 is in friction fit with the conveyor belt A306, the rotation of the rotating wheel A305 is used for realizing the rotation of the conveyor belt A306 and the conveyor belt 1, a first servo motor 301 included in the transmission device 3 is a power source, a gear B304 is sleeved on an output shaft of the first servo motor 301, the gear A303 is in meshed connection with the gear B304, and the gear A303 and the rotating wheel A305 are both sleeved on a rotating shaft A302, so that the rotating shaft A302 drives the conveyor belt 1 to rotate once the first servo motor 301 drives the gear B304 to rotate.

In the present invention, the gear B304 is provided with the teeth along only one side of the toothed disc outer wall, so that only a normal time is allowed for the gear B304 to mesh with the gear a303 during one rotation, thus allowing the conveyor belt 1 to move intermittently and reserving time for the battery measuring unit 5.

According to the invention, the two ends of the conveyor belt 1 extend into the support frame 2 and are slidably arranged on the bottom surface, the conveyor belt A306 is arranged, so that the effective and stable rotation of the conveyor belt 1 can be ensured, wherein the number of teeth on the gear B304 and the sizes of the gear B304 and the gear A303 are only used for reference and can be changed according to actual use.

Example 3:

referring to FIGS. 5-6, the embodiment 1-2 is different therefrom; battery measurement subassembly 5 includes rectangle test box 501, and both ends all are connected with power cord 502 about rectangle test box 501, and rectangle test box 501 is close to conveyer belt 1 one side and has offered spout A503 along the middle part is vertical, and spout A503 is inside to be the upper and lower symmetry and be equipped with sliding connection's connecting rod 504, and connecting rod 504 bottom extends to conveyer belt 1's upper and lower both sides and just to the position of battery, and connecting rod 504 tip all is equipped with electrically conductive connecting seat 512.

The battery measuring component 5 further comprises a second servo motor 505, two rotating shafts B506 arranged in parallel along the vertical direction, the rotating shafts B506 are arranged in the middle of the rectangular test box 501 and are sleeved with gears C507 which enable the rotating shafts B to be meshed with each other, a gear D508 is sleeved at the end of one rotating shaft B506, a gear E509 is sleeved on an output shaft of the second servo motor 505, a chain 511 is sleeved on the gear E509, the gear D508 and the gear E509 are meshed and connected through the chain 511, rotating shafts C510 parallel to the rotating shafts B506 are arranged at the upper end and the lower end of the rectangular test box 501, the rotating shafts C510 are rotatably connected with the nearby rotating shafts B506 through a transmission belt B, and the inner end of the connecting rod 504 extends into the rectangular test box 501 and is fixedly connected with one side of the transmission belt B.

The inside position that is just to power cord 502 of rectangle test box 501 is equipped with rather than the copper post 514 that communicates, and the vertical middle part that extends to of copper post 514 is in unsettled state, and connecting rod 504 is inside cavity setting, and connecting rod 504 is inside to be established conducting rod 513 again, and conducting rod 513 one end extends to rectangle test box 501 inside and with copper post 514 sliding connection, and the conducting rod 513 other end is connected with electrically conductive connecting seat 512.

The battery measuring assembly 5 mainly comprises a mechanical transmission structure, a sliding groove A503 is formed in a rectangular test box 501, two connecting rods 504 are symmetrically arranged on the sliding groove A503, and the two connecting rods 504 are driven by a second servo motor 505 to synchronously move in opposite directions or in reverse directions, so that the battery measuring assembly is used for detecting whether the performance of a battery is normal or not by connecting the positive electrode and the negative electrode of the battery.

Two rotating shafts B506 are arranged in parallel at the position, close to the middle, of a battery measuring component 5, the two rotating shafts B506 are vertically symmetrical along the middle of a rectangular test box 501, the two rotating shafts B506 are connected through meshing of two gears C507, rotating shafts C510 parallel to the rotating shafts B506 are further arranged at the upper end and the lower end of the rectangular test box 501, the rotating shafts B506 at the upper side and the lower side are rotatably connected with the rotating shafts C510 through transmission belts B, in addition, a connecting rod 504 extends into the rectangular test box 501 and is fixedly connected with the transmission belts B, a second servo motor 505 is connected with a gear E509 through meshing of a chain 511 through a gear D508, one of the rotating shafts B506 is driven, therefore, the two rotating shafts B506 rotate in opposite directions, and the connecting rod 504 synchronously moves along the transmission belts B to detect the battery.

In the invention, because the connecting rod 504 moves and needs to realize electric conduction, the connecting rod 504 is arranged in a hollow manner, the conducting rod 513 is arranged in the hollow manner and is connected with the conducting connecting seat 512 at the end part of the connecting rod 504, the other end of the conducting rod 513 extends into the rectangular test box 501, two copper columns 514 connected with a tested power line 502 are arranged in the rectangular test box 501, one end of the conducting rod 513 is sleeved on the copper column 514 and is connected with the copper column in a sliding manner, and the electric conduction is realized under the condition that the sliding of the connecting rod 504 is not influenced.

According to the invention, the bottom end of the test support bracket 4 is arranged in a hollow manner and filled with copper sheets, when a battery is placed in the test support bracket 4, the bottom end of the battery extends downwards and is in contact with the copper sheets, the transmission belt A306 is arranged in the middle of the bottom surface of the transmission belt 1, the power-on range of the copper sheets can be expanded, and a copper rod extends downwards from the side surface of the bottom end of the test support bracket 4 and penetrates through the transmission belt 1 to be connected with the lower conductive connecting seat 512.

Example 4:

referring to FIGS. 7-8, embodiments 1-3 are different in that; the automatic picking and placing device 6 comprises a rotary mechanical arm 601 and a three-jaw disc 602;

the three-jaw disc 602 is vertically fixed at the end of the rotary mechanical arm 601, the three-jaw disc 602 is arranged in the inner part, a limiting plate 603 is arranged in the middle of the three-jaw disc 602, three limiting grooves 604 with arc structures are formed in the limiting plate 603, and the limiting grooves 604 are arranged in an annular shape at equal intervals.

The outer end of the limiting groove 604 is provided with a sliding block 605, a plurality of three guide frames 606 are fixedly arranged on the limiting plate 603 at equal intervals in an annular shape, two ends of the sliding block 605 extend to the guide frames 606 and are in sliding connection with the guide frames 606, three sliding grooves B607 are formed in the positions of the three-jaw disc 602 relative to the guide frames 606, the top surface of the sliding block 605 is fixedly provided with a hinged support 608, and the bottom surface of the hinged support 608 extends to the lower part of the three-jaw disc 602 and is fixedly connected with a jaw 609.

A threaded rod 610 in threaded connection with one of the sliders 605 penetrates through the other slider, the unthreaded part of the threaded rod 610 penetrates through the three-jaw disc 602 and extends to the outer side of the three-jaw disc, and the bottom end of the threaded rod 610 is connected with a third servo motor 611.

According to the invention, the rotary mechanical arm 601 is arranged on one side of the conveyor belt 1, each connecting node of the rotary mechanical arm 601 is provided with the motor and the wireless control board, and each section rod of the rotary mechanical arm 601 is rotated through remote control, so that the batteries can be classified and collected after the three-jaw disc 602 grabs the batteries.

The three-jaw disc 602 is arranged in a hollow structure, a rotatable limiting plate 603 and three guide frames 606 are arranged in the hollow structure, the guide frames 606 are inserted on the limiting plate 603 and are vertically symmetrical along the limiting plate 603, the guide frames 606 are arranged in an annular ring shape at equal intervals and are connected and fixed with the three-jaw disc 602, the limiting plate 603 is clamped in the middle of the guide frame 606 and is in sliding connection with the guide frame 606, three limiting grooves 604 are arranged in the limiting plate 603 in an arc shape at the position below the guide frame 606, a sliding block 605 arranged on the guide frame 606 penetrates through the limiting grooves 604, the bottom end of the sliding block 605 is connected with a claw 609 through a hinge seat 608 for fixing a battery, a third servo motor 611 is fixed on one side of the three-jaw disc 602, and a threaded rod 610 penetrating through any sliding block 605 is connected to an output shaft of the third servo motor 611.

In the embodiment of the invention, the third servo motor 611 is driven to realize the rotation of the threaded rod 610, the unthreaded part of the threaded rod 610 is in contact with the three-jaw disc 602 and is in rotating connection, the threaded part of the threaded rod 610 penetrates through the sliding block 605 and is in threaded connection with the sliding block, the sliding block 605 is limited in the guide frame 606 and the limiting groove 604, the sliding block slides towards the middle part along the guide frame 606 through friction, the sliding block 605 can also follow the limiting groove 604 along the guide frame 606, but the limiting plate 603 rotates due to the arc arrangement of the limiting groove 604, so the three sliding blocks 605 synchronously move towards the middle part, the three jaws 609 gather together to grab the battery, and similarly, when the third servo motor 611 rotates reversely, the three jaws 609 scatter and throw the battery.

The invention uses the first servo motor 301, the second servo motor 505, the third servo motor 611 and other devices, because a plurality of motors work independently and are matched with each other to complete the whole process, the bottom motors are all independently carried with a control mainboard, and the numerical control program is used for controlling the work of each motor, thereby ensuring the orderly work of the devices of the invention.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a battery security performance check out test set for new energy automobile which characterized in that: including conveyer belt (1), conveyer belt (1) is the setting of closed convex circular structure along the level, conveyer belt (1) inside and outside is fixed with the support and rather than sliding connection's support frame (2), conveyer belt (1) bottom is equipped with transmission (3), conveyer belt (1) top surface is the annular equidistant a plurality of test support brackets (4) that have set firmly, conveyer belt (1) one end inboard is equipped with battery measurement subassembly (5), conveyer belt (1) outside is equipped with and gets to put device (6) automatically.

2. The battery safety performance detection device for the new energy automobile according to claim 1, characterized in that: the transmission device (3) comprises a first servo motor (301), a rotating shaft A (302), a gear A (303) and a gear B (304);

conveyer belt (1) bottom surface middle part protrusion has drive belt A (306) downwards, pivot A (302) are along the position of horizontal direction perpendicular to drive belt A (306) below, the cover is established to pivot A (302) one side has and is rotated wheel A (305), it is in friction fit with drive belt A (306) to rotate wheel A (305), gear A (303) cup joint the opposite side in pivot A (302), gear B (304) cup joint on the output shaft of first servo motor (301) and be connected with gear A (303) meshing, gear A (303) are half-tooth gear.

3. The battery safety performance detection device for the new energy automobile according to claim 1, characterized in that: battery measuring subassembly (5) include rectangle test box (501), both ends all are connected with power cord (502) about rectangle test box (501), rectangle test box (501) are close to conveyer belt (1) one side and have seted up spout A (503) along the middle part is vertical, spout A (503) inside is upper and lower symmetry and is equipped with sliding connection's connecting rod (504), connecting rod (504) bottom extends to the upper and lower both sides of conveyer belt (1) and just to the position of battery, connecting rod (504) tip all is equipped with electrically conductive connecting seat (512).

4. The battery safety performance detection device for the new energy automobile according to claim 3, characterized in that: the battery measuring component (5) also comprises a second servo motor (505) and two rotating shafts B (506) which are arranged in parallel along the vertical direction, the rotating shaft B (506) is arranged in the middle of the rectangular test box (501) and sleeved with a gear C (507) which enables the rotating shaft B and the rectangular test box to be meshed with each other, one end of the rotating shaft B (506) is sleeved with a gear D (508), an output shaft of the second servo motor (505) is sleeved with a gear E (509), the gear E (509) is sleeved with a chain (511), the gear D (508) is meshed and connected with the gear E (509) through the chain (511), the upper end and the lower end of the rectangular test box (501) are provided with a rotating shaft C (510) which is parallel to the rotating shaft B (506), the rotating shaft C (510) is rotationally connected with the nearby rotating shaft B (506) through a transmission belt B, the inner end of the connecting rod (504) extends into the rectangular test box (501) and is fixedly connected with one side of the transmission belt B.

5. The battery safety performance detection device for the new energy automobile according to claim 4, characterized in that: rectangle test box (501) inside just is equipped with copper post (514) rather than the intercommunication to the position of power cord (502), copper post (514) is vertical to the middle part extension and is in unsettled state, connecting rod (504) are inside cavity setting, connecting rod (504) are inside to be established conducting rod (513) again, conducting rod (513) one end extend to rectangle test box (501) inside and with copper post (514) sliding connection, conducting rod (513) other end is connected with electrically conductive connecting seat (512).

6. The battery safety performance detection device for the new energy automobile according to claim 5, characterized in that: the automatic picking and placing device (6) comprises a rotary mechanical arm (601) and a three-jaw disc (602);

three-jaw dish (602) is vertical to be fixed in rotating arm (601) tip, three-jaw dish (602) is the setting of structure in inside, three-jaw dish (602) middle part is equipped with limiting plate (603), set up three spacing groove (604) that are the camber structure on limiting plate (603), spacing groove (604) are the equidistant setting of annular.

7. The battery safety performance detection device for the new energy automobile according to claim 6, characterized in that: the outer end of the limiting groove (604) is provided with a sliding block (605), a plurality of three guide frames (606) are fixedly arranged on the limiting plate (603) at equal intervals in an annular shape, two ends of the sliding block (605) extend to the guide frames (606) and are in sliding connection with the guide frames, three sliding grooves B (607) are formed in the position, corresponding to the guide frames (606), of the three-jaw disc (602), a hinged support (608) is fixed to the top surface of the sliding block (605), and the bottom surface of the hinged support (608) extends to the lower portion of the three-jaw disc (602) and is connected with and fixed to jaws (609).

8. The battery safety performance detection device for the new energy automobile according to claim 7, characterized in that: a threaded rod (610) in threaded connection with the sliding block (605) penetrates through one of the sliding blocks (605), the non-threaded part of the threaded rod (610) penetrates through the three-jaw disc (602) and extends to the outer side of the three-jaw disc, and the bottom end of the threaded rod (610) is connected with a third servo motor (611).