An automatic sampling and testing device for BMS of energy storage lithium battery pack

Abstract

The present invention discloses an automatic sampling and testing device for a BMS energy storage lithium battery pack, which relates to the technical field of lithium battery testing, and comprises: a chassis and two bases, wherein the two bases are respectively located on the outer surfaces of both sides of the chassis near the right outer surface. In the present invention, when sampling and testing the BMS circuit board, the BMS circuit board is driven by a first conveyor belt for transportation for detection, and the first motor is synchronously started when the electric telescopic rod is running. The first motor can drive the sliding seat to move along the conveying direction through the drive of the screw rod, and the sliding seat can drive the electric telescopic rod to follow the movement. After the sliding seat keeps the conveying speed of the first conveyor belt moving synchronously, the test head and the BMS circuit board can be kept in a relatively static state, so that the test can be completed during the conveying process of the BMS circuit board, achieving the purpose of completing automatic detection during the conveying process, and effectively improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery testing, and in particular to a BMS automatic sampling and testing device for an energy storage lithium battery pack. Background Art

[0002] BMS lithium battery pack is a system used to monitor, control and protect batteries. It is usually applied to battery packs to improve battery performance, extend battery life, and ensure safe and reliable operation of the battery.

[0003] In the prior art, when the BMS circuit board is produced and tested, the staff usually manually takes the BMS circuit board to complete the collection and then manually sends it into the testing device for testing. The testing work can only complete the testing of one BMS circuit board through a single operation. The testing operation is relatively cumbersome and complicated, which affects the work efficiency.

[0004] Therefore, we propose an automatic sampling and testing device for BMS of energy storage lithium battery pack to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an automatic sampling and testing device for a lithium battery pack BMS to solve the problem that the testing operation proposed in the above background technology is relatively cumbersome and complicated, which affects the work efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic sampling and testing device for a lithium battery pack BMS, comprising: a base frame and two bases, the two bases are respectively located on the outer surfaces of both sides of the base frame near the right outer surface, the upper surface of the base frame is fixedly connected to a first frame, the inner surface of the first frame is fixedly connected to a first conveyor belt, the outer surfaces of both sides of the first frame are fixedly connected to first hydraulic rods, the output ends of the two first hydraulic rods are slidably penetrated through the first frame and extend to the inside, the upper surfaces of the two bases are fixedly connected to second frames, the inner surfaces of the two second frames are fixedly connected to second conveyor belts, and the two second frames are connected to the first frame in communication; a guide component, the number of the guide components is set to two, and the two guide components are set to two. The guide assembly is symmetrically fixedly connected to the inner surface of the first frame near the upper side of the first conveyor belt, and the guide assembly includes a connecting seat, which is located on the left side of the first hydraulic rod; the limit assembly, the number of the limit assemblies is set to two, and the two limit assemblies are respectively fixedly connected to the two first hydraulic rod output ends, and the limit assembly includes a connecting plate; the test assembly, the test assembly is fixedly connected to the upper surface of the first frame near the connecting plate, and the test assembly includes a bracket; the classification assembly, the classification assembly is fixedly connected to the upper surface of the first frame near the right outer surface, and the classification assembly includes an upper frame; the speed limiting assembly, the speed limiting assembly is fixedly connected to the upper surface of the first frame near the left outer surface, and the speed limiting assembly includes a fixed seat.

[0007] Preferably, the inner surface of the connecting seat is fixedly connected to a support shaft, the outer surface of the support shaft is rotatably connected to a rotating block, the outer surface of the rotating block is fixedly connected to a guide plate, and the inner surface of the guide plate is rotatably connected to a plurality of first rollers at equal intervals. The setting of the guide plate can guide the BMS circuit board to the center position of the first conveyor belt, and the setting of the first roller can reduce wear.

[0008] Preferably, an adjustment groove is provided on the upper surface of the connecting seat, a threaded rod is fixedly connected to the upper surface of the rotating block, the outer surface of the threaded rod is slidably connected to the inner surface of the adjustment groove, a nut is threadedly connected to the outer surface of the threaded rod, and the nut is located on the upper side of the connecting seat. The guide plate can be connected and rotated through the support shaft to adjust the inclination angle of the guide plate, which is convenient for adaptation and adjustment according to the shell size of the BMS circuit board.

[0009] Preferably, a plurality of first dampers are fixedly connected at equal intervals to the outer surface of the connecting plate, a first spring is sleeved on the outer surfaces of the plurality of first dampers, a limiting seat is fixedly connected between the end faces of the plurality of first dampers, a plurality of second rollers are rotatably connected to the inner surface of the limiting seat at equal intervals, a first telescopic sleeve is fixedly connected between the connecting plate and the limiting seat near the edge, the coordinated arrangement of the first damper and the first spring can play a role of buffering and shock absorption, and can play a protective role when the limiting seats on both sides limit the transportation of the BMS circuit board to avoid damage caused by contact with the BMS circuit board, and the arrangement of the first telescopic sleeve can play a role of dust protection for the first damper and the first spring.

[0010] Preferably, an avoidance groove is opened on the upper surface of the bracket, and a mounting bracket is fixedly connected to the upper surface of the bracket near the avoidance groove. A first motor is fixedly connected to the left outer surface of the mounting bracket, and the output end of the first motor slides through the mounting bracket and extends to the inner side. A screw is fixedly connected to the output end of the first motor, and a sliding seat is threadedly connected to the outer surface of the screw rod, and an electric telescopic rod is fixedly connected to the lower surface of the sliding seat, and the electric telescopic rod cooperates with the avoidance groove position. A limiting rod is symmetrically fixedly connected to the inner surface of the mounting bracket, and the limiting rod slides through the sliding seat. The test head can be driven by the first motor to move following the transportation of the BMS circuit board, and the movement of the sliding seat can be limited by the setting of the limiting rod.

[0011] Preferably, the lower end surface of the electric telescopic rod is fixedly connected to a fixing plate, a plurality of second dampers are equidistantly fixedly connected to the lower surface of the fixing plate, second springs are sleeved on the outer surfaces of the plurality of second dampers, a pressing plate is fixedly connected between the lower end surfaces of the plurality of second dampers, a test head is fixedly connected to the lower surface of the pressing plate, and a second telescopic sleeve is fixedly connected between the fixing plate and the pressing plate near the edge. The coordinated arrangement of the second damper and the second spring can play a role of buffering and shock absorption. When the electric telescopic rod drives the test head to move downward to test the BMS circuit board, the contact impact force can be reduced.

[0012] Preferably, a second motor is fixedly connected to the upper surface of the upper frame, an output end of the second motor slides through the upper frame and extends to the lower side, a rotating shaft is fixedly connected to the output end of the second motor, a guide plate is fixedly connected to the lower end surface of the rotating shaft, and a plurality of third rollers are fixedly connected to the inner surfaces of both sides of the guide plate at equal distances. The setting of the guide plate can guide the conveying direction of the conveyed BMS circuit board, and the second motor controls the guide plate to adjust the inclination angle, so as to guide the BMS circuit board to be conveyed from two second conveyor belt positions respectively.

[0013] Preferably, a connecting rod is fixedly connected to the outer surface of the rotating shaft, a sliding rod is fixedly connected to the upper surface of the connecting rod, and a pulley is rotatably connected to the upper end surface of the sliding rod. The matching arrangement of the sliding rod and the pulley can support the rotation of the guide plate.

[0014] Preferably, a slide groove is provided at the top inner part of the upper frame, the outer surface of the pulley is slidably connected to the inner surface of the slide groove, and a travel switch is symmetrically fixedly connected to the top inner part of the upper frame near the slide groove. The travel switch cooperates with the position of the slide rod. The setting of the travel switch can play a role in travel control for the rotation adjustment of the guide plate. After the guide plate drives the slide rod to complete a flipping adjustment, the slide rod touches the travel switch, and the automatic travel control function can be realized through electrical connection with the second motor.

[0015] Preferably, a second hydraulic rod is fixedly connected to the upper surface of the fixed seat, the output end of the second hydraulic rod slides through the fixed seat and extends to the lower side, the output end of the second hydraulic rod is fixedly connected to a baffle, the lower surface of the baffle is fixedly connected to a support, the inner surface of the support is rotatably connected to a rotating wheel, when the feeding speed of the front conveyor line is too fast, the baffle can be driven downward to block the movement of the BMS circuit board by starting the second hydraulic rod, and the setting of the rotating wheel can reduce the wear of the baffle.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When sampling and testing the BMS circuit board, the BMS circuit board is transported by the first conveyor belt for inspection. Starting the extension of the first hydraulic rod can drive the limit seat to move to limit the BMS circuit board to avoid the position of the BMS circuit board being offset during transportation. When the electric telescopic rod is running, the first motor is started synchronously. The first motor can drive the sliding seat to move along the conveying direction through the drive of the screw rod. The sliding seat can drive the electric telescopic rod to follow the movement. After the sliding seat maintains the conveying speed of the first conveyor belt and moves synchronously, the test head and the BMS circuit board can remain in a relatively static state, so that the test can be completed during the transportation of the BMS circuit board, achieving the purpose of completing automatic detection during the transportation process, and effectively improving work efficiency.

[0018] 2. When the BMS circuit board completes the test and continues to be transported, the guide plate can be set in an inclined state to guide the BMS circuit board to the second conveyor belt position on one side. The second motor can be controlled according to the test result of the BMS circuit board. When the second motor is started, the guide plate can be driven to flip through the connection of the rotating shaft. After the guide plate is flipped, the BMS circuit board can be guided to the second conveyor belt on the other side for transportation, thereby achieving the purpose of automatically classifying and transporting good and bad products according to the test results.

[0019] 3. Through the setting of the travel switch, after the guide plate drives the slide bar to complete a flip adjustment, the slide bar touches the travel switch. After the travel switch is triggered, the second motor can be controlled to shut down, realizing the function of automatic travel control and improving the degree of automation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of an automatic sampling and testing device for a lithium-ion battery pack BMS according to the present invention;

[0021] Figure 2 A side view of an automatic sampling and testing device for a lithium battery pack BMS according to the present invention;

[0022] Figure 3 A top view of the first frame structure of an automatic sampling and testing device for a lithium battery pack BMS according to the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of a guide component of an automatic sampling test device for a lithium battery pack BMS of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of a limit assembly of an automatic sampling test device for a lithium battery pack BMS of the present invention;

[0025] Figure 6 This is a schematic diagram of the test component structure of an automatic sampling test device for a lithium battery pack BMS of the present invention;

[0026] Figure 7 This is a schematic diagram of the test component structure of an automatic sampling test device for a lithium battery pack BMS of the present invention;

[0027] Figure 8 This is a schematic diagram of the classification component structure of an automatic sampling and testing device for a lithium battery pack BMS of the present invention;

[0028] Fig. 9 This is a schematic diagram of the classification component structure of an automatic sampling and testing device for a lithium battery pack BMS of the present invention;

[0029] Fig.10 The present invention is a schematic diagram of the structure of a speed limiting component of an automatic sampling and testing device for a lithium battery pack BMS.

[0030] In the figure:

[0031] 1. chassis; 2. first frame; 3. first conveyor belt; 4. first hydraulic rod; 5. guide assembly; 501. connecting seat; 502. support shaft; 503. adjustment slot; 504. rotating block; 505. threaded rod; 506. guide plate; 507. first roller; 6. limit assembly; 601. connecting plate; 602. first damper; 603. first spring; 604. limit seat; 605. second roller; 606. first telescopic sleeve; 7. test assembly; 701. bracket; 702. avoidance slot; 703. mounting frame; 704. first motor; 705. screw rod; 706. sliding seat; 707. limit rod; 708, electric telescopic rod; 709, fixed plate; 710, second damper; 711, second spring; 712, pressure plate; 713, test head; 714, second telescopic sleeve; 8, classification component; 801, upper shelf; 802, second motor; 803, rotating shaft; 804, guide plate; 805, third roller; 806, connecting rod; 807, sliding rod; 808, pulley; 809, slide; 810, travel switch; 9, speed limit component; 901, fixed seat; 902, second hydraulic rod; 903, baffle; 904, support; 905, rotating wheel; 10, base; 11, second frame; 12, second conveyor belt. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 10The present invention provides a technical solution: an automatic sampling and testing device for a lithium battery pack BMS, comprising: a base frame 1 and two bases 10, the two bases 10 are respectively located on the outer surfaces of both sides of the base frame 1 near the right outer surface, the upper surface of the base frame 1 is fixedly connected to a first frame 2, the inner surface of the first frame 2 is fixedly connected to a first conveyor belt 3, the outer surfaces of both sides of the first frame 2 are fixedly connected to first hydraulic rods 4, the output ends of the two first hydraulic rods 4 are slidably penetrated with the first frame 2 and extend to the inner side, the upper surfaces of the two bases 10 are fixedly connected to second frames 11, the inner surfaces of the two second frames 11 are fixedly connected to second conveyor belts 12, and the two second frames 11 are connected to the first frame 2; a guide component 5, the number of the guide components 5 is set to two, and the two guide components 5 are symmetrically fixed Fixedly connected to the inner surface of the first frame 2 near the upper side of the first conveyor belt 3, the guide component 5 includes a connecting seat 501, and the connecting seat 501 is located on the left side of the first hydraulic rod 4; the limit component 6, the number of the limit components 6 is set to two, the two limit components 6 are respectively fixedly connected to the output ends of the two first hydraulic rods 4, and the limit component 6 includes a connecting plate 601; the test component 7, the test component 7 is fixedly connected to the upper surface of the first frame 2 near the connecting plate 601, and the test component 7 includes a bracket 701; the classification component 8, the classification component 8 is fixedly connected to the upper surface of the first frame 2 near the right outer surface, and the classification component 8 includes an upper frame 801; the speed limiting component 9, the speed limiting component 9 is fixedly connected to the upper surface of the first frame 2 near the left outer surface, and the speed limiting component 9 includes a fixed seat 901.

[0034] like Figure 3 and Figure 4 As shown, the inner surface of the connecting seat 501 is fixedly connected to the support shaft 502, the outer surface of the support shaft 502 is rotatably connected to the rotating block 504, the outer surface of the rotating block 504 is fixedly connected to the guide plate 506, and the inner surface of the guide plate 506 is rotatably connected to multiple first rollers 507 at equal intervals. When the BMS circuit board is tested, the BMS circuit board is transported by the first conveyor belt 3 and moves toward the bracket 701. The BMS circuit board will pass through the guide plate 506 when moving. The inclined setting of the guide plate 506 can guide the moving trajectory of the BMS circuit board to the center position of the first conveyor belt 3, so as to facilitate the transportation of the BMS circuit board to the position between the limit seats 604 on both sides for limited transportation.

[0035] like Figure 4As shown, an adjustment groove 503 is provided on the upper surface of the connecting seat 501, and a threaded rod 505 is fixedly connected to the upper surface of the rotating block 504. The outer surface of the threaded rod 505 is slidably connected to the inner surface of the adjustment groove 503. A nut is threadedly connected to the outer surface of the threaded rod 505, and the nut is located on the upper side of the connecting seat 501. After loosening the nut, the rotating block 504 can drive the threaded rod 505 to slide in the adjustment groove 503, thereby completing the adjustment of the inclination angle of the guide plate 506. After the adjustment is completed, the position of the rotating block 504 can be clamped and fixed by tightening the nut.

[0036] like Figure 3 and Figure 5 As shown, the outer surface of the connecting plate 601 is equidistantly fixedly connected with a plurality of first dampers 602, the outer surfaces of the plurality of first dampers 602 are sleeved with first springs 603, the end surfaces of the plurality of first dampers 602 are fixedly connected with a limit seat 604, the inner surface of the limit seat 604 is equidistantly rotatably connected with a plurality of second rollers 605, and a first telescopic sleeve 606 is fixedly connected between the connecting plate 601 and the limit seat 604 near the edge position. When the BMS circuit board is transported to the position of the limit seat 604, the first hydraulic rod 4 is started to extend to drive the limit seat The seat 604 moves to limit the BMS circuit board to prevent the position of the BMS circuit board from being offset during transportation, thereby ensuring that the BMS circuit board is aligned with the position of the test head 713 during transportation. The shock-absorbing and buffering performance provided by the first spring 603 and the first damper 602 can better protect the BMS circuit board. The first telescopic sleeve 606 can be provided to protect the first damper 602 and the first spring 603 from dust, thereby increasing the service life of the first damper 602 and the first spring 603.

[0037] like Figure 6 and Figure 7As shown, the upper surface of the bracket 701 is provided with an avoidance groove 702, and a mounting frame 703 is fixedly connected to the upper surface of the bracket 701 near the avoidance groove 702. The left outer surface of the mounting frame 703 is fixedly connected to a first motor 704, and the output end of the first motor 704 slides through the mounting frame 703 and extends to the inner side. The output end of the first motor 704 is fixedly connected to a screw rod 705, and the outer surface of the screw rod 705 is threadedly connected to a sliding seat 706, and the lower surface of the sliding seat 706 is fixedly connected to an electric telescopic rod 708, and the electric telescopic rod 708 is matched with the position of the avoidance groove 702. The inner surface of the mounting frame 703 is symmetrically fixedly connected to a limit rod 707, and the limit rod 707 is symmetrically fixedly connected to the sliding seat 706. Sliding through, when the BMS circuit board is limited by the limit seats 604 on both sides, starting the electric telescopic rod 708 to extend can drive the test head 713 to move down and dock with the BMS circuit board for testing. When the electric telescopic rod 708 is running, the first motor 704 is started synchronously, and the first motor 704 can drive the sliding seat 706 to move along the conveying direction through the drive of the screw rod 705. The sliding seat 706 can drive the electric telescopic rod 708 to follow the movement. After the sliding seat 706 maintains the conveying speed of the first conveyor belt 3 and moves synchronously, the test head 713 and the BMS circuit board can remain in a relatively static state, so that the test can be completed during the conveying process of the BMS circuit board.

[0038] like Figure 6 and Figure 7 As shown, a fixing plate 709 is fixedly connected to the lower end surface of the electric telescopic rod 708, a plurality of second dampers 710 are fixedly connected to the lower surface of the fixing plate 709 at equal intervals, and second springs 711 are sleeved on the outer surfaces of the plurality of second dampers 710, a pressing plate 712 is fixedly connected between the lower end surfaces of the plurality of second dampers 710, a test head 713 is fixedly connected to the lower surface of the pressing plate 712, and a second telescopic sleeve 714 is fixedly connected between the fixing plate 709 and the pressing plate 712 near the edge. When the electric telescopic rod 708 is extended to drive the test head 713 to move downward for testing, the coordinated arrangement of the second damper 710 and the second spring 711 can avoid damage to the BMS circuit board during downward contact, and the arrangement of the second telescopic sleeve 714 can provide dust protection for the second damper 710 and the second spring 711.

[0039] like Figure 8 and Fig. 9As shown, a second motor 802 is fixedly connected to the upper surface of the upper frame 801, and the output end of the second motor 802 slides through the upper frame 801 and extends to the lower side. A rotating shaft 803 is fixedly connected to the output end of the second motor 802, and a guide plate 804 is fixedly connected to the lower end surface of the rotating shaft 803. A plurality of third rollers 805 are fixedly connected to the inner surfaces of both sides of the guide plate 804 at equal distances. When the BMS circuit board completes the test and continues to be conveyed, the guide plate 804 is set in an inclined state to guide the BMS circuit board to the position of the second conveyor belt 12 on one side. After the control connection between the test head 713 and the second motor 802 is completed by the control system, the second motor 802 can be controlled according to the test result of the BMS circuit board. When the second motor 802 is started, the guide plate 804 can be driven to flip through the connection of the rotating shaft 803. After the guide plate 804 is flipped, the BMS circuit board can be guided to the second conveyor belt 12 on the other side for conveyance, thereby achieving the purpose of automatically classifying and conveying good and bad products according to the test results.

[0040] like Figure 8 and Fig. 9 As shown, a connecting rod 806 is fixedly connected to the outer surface of the rotating shaft 803, a sliding rod 807 is fixedly connected to the upper surface of the connecting rod 806, and a pulley 808 is rotatably connected to the upper end surface of the sliding rod 807. Through the matching setting of the sliding rod 807 and the pulley 808, when the rotating shaft 803 rotates, it will drive the sliding rod 807 to move along the sliding groove 809.

[0041] like Figure 8 and Fig. 9 As shown, a slide groove 809 is provided at the top of the upper frame 801, and the outer surface of the pulley 808 is slidably connected to the inner surface of the slide groove 809. A travel switch 810 is symmetrically fixedly connected at the top of the upper frame 801 near the slide groove 809. The travel switch 810 is matched with the position of the slide bar 807. The setting of the travel switch 810 can play a role in travel control for the rotation adjustment of the guide plate 804. After the guide plate 804 drives the slide bar 807 to complete a flipping adjustment, the slide bar 807 touches the travel switch 810. After the travel switch 810 is triggered, the second motor 802 can be controlled to be shut down, thereby realizing the function of automatic travel control.

[0042] like Fig.10 As shown, a second hydraulic rod 902 is fixedly connected to the upper surface of the fixed seat 901, an output end of the second hydraulic rod 902 slides through the fixed seat 901 and extends to the lower side, a baffle 903 is fixedly connected to the output end of the second hydraulic rod 902, a support 904 is fixedly connected to the lower surface of the baffle 903, a rotating wheel 905 is rotatably connected to the inner surface of the support 904, when the feeding speed of the front conveyor line is too fast, the second hydraulic rod 902 is started to extend, and the extension of the second hydraulic rod 902 can drive the baffle 903 to move downward to block the movement of the BMS circuit board, and the setting of the rotating wheel 905 can reduce the wear of the baffle 903.

[0043] The use method and working principle of the device: When sampling and testing the BMS circuit board, the BMS circuit board is driven by the first conveyor belt 3 for transportation and testing. When the BMS circuit board moves, it will pass through the guide plate 506. The inclined setting of the guide plate 506 can guide the moving trajectory of the BMS circuit board to the center position of the first conveyor belt 3. Starting the extension of the first hydraulic rod 4 can drive the limit seat 604 to move and limit the BMS circuit board, so as to avoid the position of the BMS circuit board being offset during transportation, thereby ensuring that the BMS circuit board is aligned with the test during transportation. The position of the test head 713 can provide a good protection for the BMS circuit board by utilizing the shock absorbing and buffering performance provided by the first spring 603 and the first damper 602. Starting the electric telescopic rod 708 to extend can drive the test head 713 to move downward to dock with the BMS circuit board for testing. When the electric telescopic rod 708 is running, the first motor 704 is started synchronously. The first motor 704 can drive the sliding seat 706 to move along the conveying direction through the drive of the screw rod 705. The sliding seat 706 can drive the electric telescopic rod 708 to move along. After the first conveyor belt 3 is kept moving synchronously at the conveying speed, the test head 713 and the BMS circuit board can be kept in a relatively static state, so that the test can be completed during the conveying process of the BMS circuit board. The second damper 710 and the second spring 711 are arranged in a coordinated manner to avoid damage to the BMS circuit board during the downward contact. The second motor 802 is started to drive the guide plate 804 to flip through the connection of the rotating shaft 803. After the guide plate 804 flips, the BMS circuit board can be guided to the second conveyor belt 12 on the other side for conveying, achieving In order to automatically classify and convey good and bad products according to the test results, after the guide plate 804 drives the slide bar 807 to complete a flip adjustment, the slide bar 807 touches the travel switch 810. After the travel switch 810 is triggered, the second motor 802 can be controlled to be shut down, thereby realizing the function of automatic travel control. When the feeding speed of the front conveyor line is too fast, the second hydraulic rod 902 is started to extend. The extension of the second hydraulic rod 902 can drive the baffle 903 to move down to block the movement of the BMS circuit board. The setting of the rotating wheel 905 can reduce the wear of the baffle 903.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic sampling and testing device for a lithium battery pack BMS, characterized in that: include: A base frame (1) and two bases (10), wherein the two bases (10) are respectively located on the outer surfaces of both sides of the base frame (1) near the right outer surface, the upper surface of the base frame (1) is fixedly connected to a first frame (2), the inner surface of the first frame (2) is fixedly connected to a first conveyor belt (3), the outer surfaces of both sides of the first frame (2) are fixedly connected to first hydraulic rods (4), the output ends of the two first hydraulic rods (4) are slidably penetrated by the first frame (2) and extend to the inner side, the upper surfaces of the two bases (10) are fixedly connected to a second frame (11), the inner surfaces of the two second frames (11) are fixedly connected to a second conveyor belt (12), and the two second frames (11) are connected to the first frame (2); A guide assembly (5), wherein the number of the guide assemblies (5) is set to two, and the two guide assemblies (5) are symmetrically fixedly connected to the inner surface of the first frame (2) near the upper side of the first conveyor belt (3), and the guide assembly (5) comprises a connecting seat (501), and the connecting seat (501) is located at the left side of the first hydraulic rod (4); A limit assembly (6), wherein the number of the limit assemblies (6) is set to two, the two limit assemblies (6) are respectively fixedly connected to the output ends of the two first hydraulic rods (4), and the limit assembly (6) comprises a connecting plate (601); A test assembly (7), the test assembly (7) being fixedly connected to the upper surface of the first frame (2) near the connecting plate (601), the test assembly (7) comprising a bracket (701); A classification component (8), the classification component (8) being fixedly connected to an upper surface of the first frame (2) close to a right outer surface, the classification component (8) comprising an upper frame (801); A speed limiting component (9), the speed limiting component (9) being fixedly connected to an upper surface of the first frame (2) near a left outer surface, the speed limiting component (9) comprising a fixing seat (901); An avoidance groove (702) is provided on the upper surface of the bracket (701); a mounting frame (703) is fixedly connected to the upper surface of the bracket (701) near the avoidance groove (702); a first motor (704) is fixedly connected to the left outer surface of the mounting frame (703); an output end of the first motor (704) slides through the mounting frame (703) and extends to the inner side; a lead screw (705) is fixedly connected to the output end of the first motor (704); a sliding seat (706) is threadedly connected to the outer surface of the lead screw (705); an electric telescopic rod (708) is fixedly connected to the lower surface of the sliding seat (706); the electric telescopic rod (708) matches the position of the avoidance groove (702); a limit rod (707) is symmetrically fixedly connected to the inner surface of the mounting frame (703); the limit rod (707) slides through the sliding seat (706); The lower end surface of the electric telescopic rod (708) is fixedly connected to a fixing plate (709), a plurality of second dampers (710) are fixedly connected to the lower surface of the fixing plate (709) at equal intervals, the outer surfaces of the plurality of second dampers (710) are sleeved with a second spring (711), a pressing plate (712) is fixedly connected between the lower end surfaces of the plurality of second dampers (710), a test head (713) is fixedly connected to the lower surface of the pressing plate (712), and a second telescopic sleeve (714) is fixedly connected between the fixing plate (709) and the pressing plate (712) near the edge.

2. The energy storage lithium battery pack BMS automatic sampling and testing device according to claim 1 is characterized in that: The inner surface of the connecting seat (501) is fixedly connected to a support shaft (502), the outer surface of the support shaft (502) is rotatably connected to a rotating block (504), the outer surface of the rotating block (504) is fixedly connected to a guide plate (506), and the inner surface of the guide plate (506) is rotatably connected to a plurality of first rollers (507) at equal intervals.

3. The energy storage lithium battery pack BMS automatic sampling and testing device according to claim 2 is characterized in that: An adjustment groove (503) is provided on the upper surface of the connecting seat (501); a threaded rod (505) is fixedly connected to the upper surface of the rotating block (504); an outer surface of the threaded rod (505) is slidably connected to an inner surface of the adjustment groove (503); a nut is threadedly connected to the outer surface of the threaded rod (505); and the nut is located on the upper side of the connecting seat (501).

4. The energy storage lithium battery pack BMS automatic sampling and testing device according to claim 1 is characterized in that: The outer surface of the connecting plate (601) is fixedly connected with a plurality of first dampers (602) at equal intervals, the outer surfaces of the plurality of first dampers (602) are all sleeved with a first spring (603), the end surfaces of the plurality of first dampers (602) are fixedly connected with a limit seat (604), the inner surface of the limit seat (604) is rotatably connected with a plurality of second rollers (605) at equal intervals, and a first telescopic sleeve (606) is fixedly connected between the connecting plate (601) and the limit seat (604) near the edge.

5. The energy storage lithium battery pack BMS automatic sampling and testing device according to claim 1 is characterized in that: A second motor (802) is fixedly connected to the upper surface of the upper frame (801); an output end of the second motor (802) slides through the upper frame (801) and extends to the lower side; a rotating shaft (803) is fixedly connected to the output end of the second motor (802); a guide plate (804) is fixedly connected to the lower end surface of the rotating shaft (803); and a plurality of third rollers (805) are fixedly connected to the inner surfaces of both sides of the guide plate (804) at equal distances.

6. The energy storage lithium battery pack BMS automatic sampling and testing device according to claim 5 is characterized in that: The outer surface of the rotating shaft (803) is fixedly connected to a connecting rod (806), the upper surface of the connecting rod (806) is fixedly connected to a sliding rod (807), and the upper end surface of the sliding rod (807) is rotatably connected to a pulley (808).

7. The energy storage lithium battery pack BMS automatic sampling and testing device according to claim 6 is characterized in that: A slide groove (809) is provided at the top of the upper frame (801), and the outer surface of the pulley (808) is slidably connected to the inner surface of the slide groove (809). A travel switch (810) is symmetrically fixedly connected to the top of the upper frame (801) near the slide groove (809), and the travel switch (810) is matched with the position of the slide rod (807).

8. The energy storage lithium battery pack BMS automatic sampling and testing device according to claim 1 is characterized in that: A second hydraulic rod (902) is fixedly connected to the upper surface of the fixed seat (901); an output end of the second hydraulic rod (902) slides through the fixed seat (901) and extends to the lower side; a baffle (903) is fixedly connected to the output end of the second hydraulic rod (902); a support (904) is fixedly connected to the lower surface of the baffle (903); and a rotating wheel (905) is rotatably connected to the inner surface of the support (904).

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