A sealing detection device for new energy vehicles

Abstract

The application belongs to the technical field of automobile manufacturing and detection, and particularly relates to a sealing detection equipment for new energy vehicles, which aims at positioning the sealing leakage point, and leakage gas may be blown away due to external factors (such as workshop ventilation or personnel walking), so that the leakage point cannot be effectively captured and positioned, and then the detection accuracy and subsequent maintenance operation are affected, and the following scheme is proposed, which comprises: a detection base, two guide rails are arranged on the detection base, two mounting brackets are arranged on the detection base, and a same linear lead screw is arranged on the two mounting brackets. The sealing detection equipment for new energy vehicles has the effect of improving detection accuracy, and when the leakage point is detected and positioned, the device can isolate the battery pack body and its periphery from the outside world, so that the leakage gas is not affected and blown away by external factors when the leakage gas is detected, and the leakage point is accurately captured and positioned, so that the use effect of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile manufacturing and detection technology, and particularly relates to a sealing detection equipment for new energy vehicles. BACKGROUND

[0002] The new energy vehicle refers to a vehicle using unconventional vehicle fuel as a power source (or using conventional vehicle fuel but adopting a new vehicle power device), and combining advanced technologies of vehicle power control and driving to form a vehicle with advanced technical principles and new technologies and structures.

[0003] The sealing detection of the new energy vehicle is a crucial quality assurance process, which is mainly used to ensure that the key components and overall structure of the vehicle have excellent dustproof and waterproof capabilities, and the test is directly related to the safety performance, service life, driving comfort and reliability of the three-electricity system (battery, motor and electric control).

[0004] The existing new energy vehicles need to detect the sealing of the battery during production and manufacturing. During the detection, gas is usually filled into the inside, and the sealing is judged according to the gas pressure. However, when positioning the sealing leakage point, the leakage gas may be blown away due to external factors (such as workshop ventilation or personnel walking), which cannot effectively capture and position the leakage point, thereby affecting the detection accuracy and subsequent maintenance operation. SUMMARY

[0005] The present application discloses a sealing detection equipment for new energy vehicles, which aims to solve the technical problem of positioning the sealing leakage point in the background art, which may be blown away due to external factors (such as workshop ventilation or personnel walking), which cannot effectively capture and position the leakage point, thereby affecting the detection accuracy and subsequent maintenance operation.

[0006] The present application provides a sealing detection equipment for new energy vehicles, which comprises:

[0007] A detection base is provided with two guide rails, and two mounting brackets are arranged on the detection base, and a same linear lead screw is arranged on the two mounting brackets and located between the two guide rails;

[0008] A stepping motor is arranged on one of the mounting brackets, and an output shaft of the stepping motor is connected to one end of the linear lead screw through a shaft coupling;

[0009] An active platform is arranged on the linear lead screw and the two guide rails, and two fixed bases are arranged on the active platform, and a fixed rod is arranged on each of the two fixed bases, and a detection plate is arranged on each of the two fixed rods;

[0010] The fixed support is arranged on the detection base, and four guide holes are arranged on the fixed support;

[0011] The isolation leakproof unit is arranged on the fixed support, and the isolation leakproof unit comprises two isolation cover frames and four arc-shaped combined plates.

[0012] The two adsorption limiting modules are respectively arranged on the two detection plate tables, and the adsorption limiting module comprises two adsorption suction cups and four elastic limiting frames.

[0013] In a preferred scheme, the isolation leakproof unit further comprises:

[0014] The four guide rod members are respectively arranged on the inner walls of the four guide holes, and the two isolation cover frames are respectively arranged on one end of the four guide rod members.

[0015] The four extension springs are respectively arranged outside the four guide rod members, one end of the four extension springs is fixedly connected with the outer walls on both sides of the fixed support, and the other end of the four extension springs is fixedly connected with the outer walls on one side of the two isolation cover frames.

[0016] In a preferred scheme, the isolation leakproof unit further comprises:

[0017] The mounting plate member is arranged on the fixed support, and a universal motor is arranged on the mounting plate member, and the output shaft of the universal motor is connected with a mounting shaft rod through a shaft coupling;

[0018] The two double-groove winding wheels are arranged on the mounting shaft rod, and two connecting cables are arranged on each of the two double-groove winding wheels, and one end of the four connecting cables is arranged on the outer wall on one side of the two isolation cover frames.

[0019] In a preferred scheme, the isolation leakproof unit further comprises:

[0020] The four fixed vertical rods are respectively arranged on the two isolation cover frames.

[0021] The four mounting vertical rods are respectively arranged on the four arc-shaped combined plates, and the four arc-shaped combined plates are respectively arranged on the two isolation cover frames, and the two isolation cover frames are respectively arranged on the two isolation cover frames.

[0022] The four electric telescopic rods are respectively arranged on the four mounting vertical rods and the four fixed vertical rods.

[0023] In a preferred scheme, the isolation leakproof unit further comprises:

[0024] Two rotating shaft seats, two rotating shaft seats are respectively arranged on two isolation cover frames, and passive gear rings are arranged on the two rotating shaft seats;

[0025] Two support pieces, two support pieces are respectively arranged on two isolation cover frames, and driving motors are arranged on the two support pieces, output shafts of the two driving motors are connected with driving gears through couplings, and the two driving gears are meshed with the two passive gear rings respectively;

[0026] Two detection pumps, two detection pumps are respectively arranged on two rotating shaft seats.

[0027] In a preferred scheme, the isolation leak detection unit further comprises:

[0028] Four electric push rods, four electric push rods are respectively arranged on two rotating shaft seats, and output ends of the two electric push rods arranged on the same rotating shaft seat are provided with the same detection suction gun;

[0029] Two connecting pipes, two connecting pipes are respectively arranged on two detection pumps, and input ends of the two connecting pipes are arranged on two detection suction guns.

[0030] In a preferred scheme, two battery pack bodies are arranged on the two detection plate tables, four mounting holes are formed in the two battery pack bodies, and servo motors are arranged on the two fixed bases, output shafts of the two servo motors are connected with one ends of the two fixed rods through couplings.

[0031] In a preferred scheme, the suction limiting module further comprises:

[0032] A fixed plate frame is arranged on the detection plate table, a suction pedestal is arranged on the fixed plate frame, and two suction suction cups are arranged on the suction pedestal;

[0033] A communication bin is arranged at output ends of the two suction suction cups, a negative pressure pipe is arranged on the communication bin, and a gas pump body is arranged at an output end of the negative pressure pipe.

[0034] In a preferred scheme, the suction limiting module further comprises:

[0035] An air inlet pipe is arranged at an input end of the gas pump body;

[0036] An air outlet pipe is arranged at an output end of the gas pump body, the output end of the gas pump body is further provided with a pressure charging pipe, and control valves are arranged on the pressure charging pipe, the air outlet pipe, the negative pressure pipe and the air inlet pipe.

[0037] In a preferred scheme, the suction limiting module further comprises:

[0038] Four conveying pipes are arranged on the pressure charging pipe, and the output ends of the four conveying pipes are provided with air chamber components, three air pipes are arranged on each air chamber component, and the output ends of each three air pipes are provided with the same expansion air ring.

[0039] Four mounting rod frames are arranged on the detection plate table, the four mounting rod frames pass through the mounting holes, and the four expansion air rings are arranged on the four mounting rod frames respectively.

[0040] As can be seen from the above, the sealing detection equipment for new energy vehicles provided by the application has the effect of improving detection accuracy. When detecting and positioning the leakage point, the device can isolate the battery pack body and its surroundings from the outside world to avoid the leakage gas from being blown away by external factors when detecting the leakage gas, thereby accurately capturing and positioning the leakage point to improve the use effect of the device. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 The overall structure schematic diagram of the sealing detection equipment for new energy vehicles is provided.

[0042] Figure 2 The linear lead screw and detection plate table combined structure schematic diagram of the sealing detection equipment for new energy vehicles is provided.

[0043] Figure 3 The isolation and leakage positioning unit structure schematic diagram of the sealing detection equipment for new energy vehicles is provided.

[0044] Figure 4 The guide rod component and extension spring split structure schematic diagram of the sealing detection equipment for new energy vehicles is provided.

[0045] Figure 5 The arc-shaped combined plate and isolation cover frame split structure schematic diagram of the sealing detection equipment for new energy vehicles is provided.

[0046] Figure 6 The driving gear and driven gear ring combined structure schematic diagram of the sealing detection equipment for new energy vehicles is provided.

[0047] Figure 7 The guide rail and stepping motor combined structure schematic diagram of the sealing detection equipment for new energy vehicles is provided.

[0048] Figure 8 The fixed base and detection plate table split structure schematic diagram of the sealing detection equipment for new energy vehicles is provided.

[0049] Figure 9 A schematic structural view of an adsorption limiting module of a sealing detection equipment for new energy vehicles is provided in the present application.

[0050] Figure 10 A schematic structural view of a split structure of an expansion air ring and an elastic limiting frame of a sealing detection equipment for new energy vehicles is provided in the present application.

[0051] In the figure: 1, detection base; 2, movable platform; 3, detection plate table; 4, battery pack body; 5, isolation leak positioning unit; 501, isolation cover frame; 502, arc-shaped cover plate; 503, connecting cable; 504, fixed vertical rod; 505, telescopic spring; 506, guide rod; 507, mounting plate; 508, universal motor; 509, double-groove winding wheel; 510, mounting shaft; 511, inflation slot; 512, mounting vertical rod; 513, electric telescopic rod; 514, detection pump; 515, driving motor; 516, detection suction gun; 517, connecting pipe; 518, rotating shaft seat; 519, electric push rod; 520, driven gear ring; 521, driving gear; 522, support; 6, fixed support; 7, adsorption limiting module; 701, air inlet pipe; 702, control valve; 703, air pump body; 704, pressure charging pipe; 705, adsorption pedestal; 706, adsorption suction cup; 707, air chamber; 708, conveying pipe; 709, negative pressure pipe; 710, exhaust pipe; 711, fixed plate frame; 712, air passage pipe; 713, expansion air ring; 714, elastic limiting frame; 715, mounting rod frame; 716, communication bin; 8, linear lead screw; 9, mounting support; 10, guide rail; 11, guide hole; 12, stepper motor; 13, fixed base; 14, fixed rod; 15, servo motor. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0053] The sealing detection equipment for new energy vehicles disclosed in the present application is mainly applied to the positioning of sealing leakage points. The leakage gas may be blown away due to external factors (such as workshop ventilation or personnel walking), which leads to the failure to effectively capture and position the leakage point, and further affects the detection accuracy and subsequent maintenance operation.

[0054] Reference Figures 1-10 A sealing detection equipment for new energy vehicles, comprising:

[0055] The detection base 1 is provided with two guide rails 10, and two mounting brackets 9 are arranged on the detection base 1, and a same linear lead screw 8 is arranged on the two mounting brackets 9 and located between the two guide rails 10;

[0056] The stepping motor 12 is arranged on one of the mounting brackets 9, and an output shaft of the stepping motor 12 is connected to one end of the linear lead screw 8 through a shaft coupling;

[0057] The movable platform 2 is arranged on the linear lead screw 8 and the two guide rails 10, and two fixed bases 13 are arranged on the movable platform 2, and a fixed rod 14 is arranged on each of the two fixed bases 13, and a detection plate 3 is arranged on each of the two fixed rods 14;

[0058] The fixed bracket 6 is arranged on the detection base 1, and four guide holes 11 are formed in the fixed bracket 6;

[0059] The isolation and leakage prevention unit 5 is arranged on the fixed bracket 6, and the isolation and leakage prevention unit 5 comprises two isolation cover frames 501 and four arc-shaped combined plates 502;

[0060] The two adsorption limiting modules 7 are arranged on the two detection plates 3 respectively, and each of the adsorption limiting modules 7 comprises two adsorption suction cups 706 and four elastic limiting frames 714.

[0061] Reference Figures 1-6 In a preferred embodiment, the isolation and leakage prevention unit 5 further comprises:

[0062] The four guide rods 506 are arranged on the inner walls of the four guide holes 11 respectively, and the two isolation cover frames 501 are arranged on one end of the four guide rods 506 respectively;

[0063] The four telescopic springs 505 are arranged outside the four guide rods 506 respectively, one end of each of the four telescopic springs 505 is fixedly connected to the outer walls on both sides of the fixed bracket 6, and the other end of each of the four telescopic springs 505 is fixedly connected to the outer wall on one side of the two isolation cover frames 501.

[0064] In the present application, the isolation and leakage prevention unit 5 further comprises:

[0065] The mounting plate 507 is arranged on the fixed bracket 6, and a general motor 508 is arranged on the mounting plate 507, and an output shaft of the general motor 508 is connected to a mounting shaft 510 through a shaft coupling;

[0066] Two double-groove winding wheels 509 are arranged on the mounting shaft 510, and two connecting cables 503 are arranged on the two double-groove winding wheels 509.

[0067] In the application, the leakproofing unit 5 further comprises:

[0068] Four fixed vertical rods 504 are arranged on the two isolation cover frames 501.

[0069] Four mounting vertical rods 512 are arranged on the four arc-shaped combined plates 502, and the four arc-shaped combined plates 502 are arranged on the two isolation cover frames 501, and the two isolation cover frames 501 are provided with the inflation grooves 511.

[0070] Four electric telescopic rods 513 are arranged on the four mounting vertical rods 512 and the four fixed vertical rods 504.

[0071] In the application, the leakproofing unit 5 further comprises:

[0072] Two rotating shaft seats 518 are arranged on the two isolation cover frames 501, and the two rotating shaft seats 518 are provided with the passive gear rings 520.

[0073] Two bracket pieces 522 are arranged on the two isolation cover frames 501, and the two bracket pieces 522 are provided with the driving motors 515, the output shafts of the two driving motors 515 are connected with the driving gears 521 through the shaft couplings, and the two driving gears 521 are engaged with the two passive gear rings 520.

[0074] Two detection pumps 514 are arranged on the two rotating shaft seats 518.

[0075] In the application, the leakproofing unit 5 further comprises:

[0076] Four electric push rods 519 are arranged on the two rotating shaft seats 518, and the output ends of the two electric push rods 519 arranged on the same rotating shaft seat 518 are provided with the same detection suction gun 516.

[0077] Two connecting pipes 517 are arranged on the two detection pumps 514, and the input ends of the two connecting pipes 517 are arranged on the two detection suction guns 516.

[0078] Specifically, when the battery pack body 4 is moved to the detection position and connected with the detection inflation mechanism, the universal motor 508 is operated, the universal motor 508 drives the installation shaft rod 510 to rotate with the double-groove winding wheel 509, and makes the double-groove winding wheel 509 relax the connecting cable 503. At this time, with the relaxation of the connecting cable 503, the telescopic spring 505 can drive the guide rod 506 and the isolation cover frame 501 to move until the isolation cover frame 501 contacts the detection plate table 3 in the vertical state, and then the electric telescopic rod 513 is operated, the electric telescopic rod 513 drives the installation vertical rod 512 and the arc-shaped combined plate 502 to move, so that the arc-shaped combined plate 502 moves on the isolation cover frame 501 and further supplements the shielding of the inflation slot 511, to complete the isolation.

[0079] When detecting, the detection pump 514 and the driving motor 515 are operated, the driving motor 515 drives the driving gear 521 to rotate, and since the driving gear 521 is engaged with the driven gear ring 520, the driven gear ring 520 drives the rotating shaft seat 518 to rotate, so as to further drive the electric push rod 519 to drive the detection suction gun 516 to rotate. At the same time, the electric push rod 519 is adjusted in extension and retraction according to the rotating position, and cooperates with the detection pump 514 and the connecting pipe 517 to suck the internal leakage gas into the detection suction gun 516 for detection. If the inflating gas is detected, the leakage point is recorded, until the detection is completed.

[0080] In a specific application scenario, the isolation and leakage positioning unit 5 is suitable for new energy battery pack sealing detection link, that is, when detecting and positioning the leakage point, the isolation and leakage positioning unit 5 can isolate the battery pack body 4 and its surroundings from the outside through the isolation cover frame 501 and the arc-shaped combined plate 502, so that the leaked gas can be isolated from the outside during detection, thereby avoiding being blown away by external factors (such as workshop ventilation or personnel walking), so that the detection suction gun 516 can effectively capture the leaked gas of the leakage point, thereby accurately capturing and positioning the leakage point, avoiding missed detection, and improving the detection accuracy and detection quality of the device, and ensuring the effective operation of subsequent maintenance operation.

[0081] It should be noted that the inflation slot 511 is used for the detection inflation mechanism to connect with the battery pack body 4, and the arc-shaped combined plate 502 can further supplement the shielding of the inflation slot 511 after connection, thereby improving the isolation effect of the device.

[0082] Referring to Figure 1 , Figure 2 and Figure 8 , in a preferred embodiment, two detection plate tables 3 are provided with battery pack bodies 4, four installation holes are formed in each of the two battery pack bodies 4, and two servo motors 15 are arranged on the two fixed bases 13. The output shafts of the two servo motors 15 are connected with one end of the two fixed rod members 14 through couplings.

[0083] The device: the servo motor 15 can drive the fixed shaft rod to rotate in use, and then make the detection plate table 3 change between horizontal state and vertical state, so as to respectively carry out battery pack fixing operation and sealing detection operation.

[0084] Referring to Figure 2 , Figure 7 , Figure 9 And Figure 10 , in a preferred embodiment, the adsorption limiting module 7 further comprises:

[0085] The fixed plate frame 711 is arranged on the detection plate table 3, and the adsorption seat 705 is arranged on the fixed plate frame 711, and the two adsorption suction cups 706 are arranged on the adsorption seat 705;

[0086] The communication bin 716 is arranged at the output end of the two adsorption suction cups 706, and the negative pressure pipe 709 is arranged on the communication bin 716, and the output end of the negative pressure pipe 709 is provided with the air pump body 703.

[0087] In the application, the adsorption limiting module 7 further comprises:

[0088] The air inlet pipe 701 is arranged at the input end of the air pump body 703;

[0089] The air outlet pipe 710 is arranged at the output end of the air pump body 703, and the output end of the air pump body 703 is further provided with the pressure charging pipe 704, and the control valve 702 is arranged on the pressure charging pipe 704, the air outlet pipe 710 and the air inlet pipe 701.

[0090] In the application, the adsorption limiting module 7 further comprises:

[0091] The four conveying pipes 708 are arranged on the pressure charging pipe 704, and the output end of the four conveying pipes 708 is provided with the air chamber 707, and the four air chambers 707 are provided with three air pipes 712, and the output end of every three air pipes 712 is provided with the same expansion air ring 713;

[0092] The four mounting rod frames 715 are arranged on the detection plate table 3, and the four mounting rod frames 715 pass through the mounting holes, and the four elastic limiting frames 714 and the four expansion air rings 713 are arranged on the four mounting rod frames 715 respectively, and the four expansion air rings 713 are located in the four elastic limiting frames 714 respectively.

[0093] Specifically, at a fixed time, the battery pack body 4 is placed on the detection plate table 3 in a horizontal state according to the setting position of the mounting rod frame 715, at this time the air pump body 703 operates, and the control valve 702 on the negative pressure pipe 709 and the exhaust pipe 710 is opened, so that the air pump body 703 exhausts the gas in the communication bin 716 through the negative pressure pipe 709 and the exhaust pipe 710, and then the inside of the communication bin 716 is in a negative pressure state, so that the adsorption suction cup 706 adsorbs and fixes the battery pack body 4, then the control valve 702 on the negative pressure pipe 709 and the exhaust pipe 710 is closed, and the control valve 702 on the air inlet pipe 701 and the pressure charging pipe 704 is opened, so that the gas enters the inside of the pressure charging pipe 704, and is further conveyed to the inside of the air chamber 707 through the conveying pipe 708, then the inflation air ring 713 is inflated through the air pipe 712, and the elastic limiting frame 714 is expanded under stress to limit the battery pack body 4, so as to complete the limiting and fixing of the battery pack body 4;

[0094] In a specific application scenario, the adsorption and limiting module 7 is suitable for battery pack detection and fixing link, that is, the adsorption and limiting module 7 can adsorb and fix the battery pack body 4 when used, and at the same time, the fixed position of the battery pack body 4 can be limited by the cooperation of the plurality of mounting rod frames 715, the elastic limiting frame 714 and the inflation air ring 713 when fixed, so as to avoid the battery pack body 4 from deviating, and ensure that it can be quickly and accurately connected with the inflation mechanism in the subsequent operation link, thereby facilitating the detection and improving the detection operation efficiency.

[0095] It should be noted that the cooperation and fixing of the elastic limiting frame 714 and the inflation air ring 713 can avoid the battery pack body 4 from falling off when the detection plate table 3 is in a vertical state.

[0096] Working principle:

[0097] When fixed, the battery pack body 4 is placed on the detection plate table 3 in a horizontal state according to the setting position of the mounting rod frame 715, at this time the air pump body 703 operates, and the control valve 702 on the negative pressure pipe 709 and the exhaust pipe 710 is opened, so that the air pump body 703 exhausts the gas in the communication bin 716 through the negative pressure pipe 709 and the exhaust pipe 710, and then the inside of the communication bin 716 is in a negative pressure state, so that the adsorption suction cup 706 adsorbs and fixes the battery pack body 4, then the control valve 702 on the negative pressure pipe 709 and the exhaust pipe 710 is closed, and the control valve 702 on the air inlet pipe 701 and the pressure charging pipe 704 is opened, so that the gas enters the inside of the pressure charging pipe 704, and is further conveyed to the inside of the air chamber 707 through the conveying pipe 708, then the inflation air ring 713 is inflated through the air pipe 712, and the elastic limiting frame 714 is expanded under stress to limit the battery pack body 4, so as to complete the limiting and fixing of the battery pack body 4;

[0098] Before detection, the servo motor 15 operates to drive the fixed rod 14 and the detection plate table 3 to rotate, so that the detection plate table 3 is in a vertical state, and then the stepper motor 12 drives the linear lead screw 8 to rotate, so that the movable platform 2 drives the battery pack body 4 to move to a detection position and connect the detection port with the detection inflation mechanism;

[0099] When the battery pack body 4 is moved to the detection position and connected with the detection inflation mechanism, the universal motor 508 operates to drive the installation shaft 510 and the double-groove winding wheel 509 to rotate, and the double-groove winding wheel 509 loosens the connecting cable 503, at this time, with the loosening of the connecting cable 503, the telescopic spring 505 drives the guide rod 506 and the isolation cover frame 501 to move until the isolation cover frame 501 contacts with the detection plate table 3 in a vertical state, and then the electric telescopic rod 513 operates to drive the installation vertical rod 512 and the arc-shaped cover plate 502 to move, so that the arc-shaped cover plate 502 moves on the isolation cover frame 501 and further blocks the inflation slot 511 to complete the isolation.

[0100] During detection, the detection pump 514 and the driving motor 515 operate, the driving motor 515 drives the driving gear 521 to rotate, and since the driving gear 521 is engaged with the driven gear ring 520, the driven gear ring 520 drives the rotating shaft seat 518 to rotate, so as to further drive the electric push rod 519 to drive the detection suction gun 516 to rotate, and the electric push rod 519 is adjusted in extension and retraction according to the rotating position, and cooperates with the detection pump 514 and the connecting pipe 517 to suck the internal leakage gas into the detection suction gun 516 for detection, if the inflating gas is detected, the leakage point is recorded, and the detection is completed.

[0101] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A sealing performance testing device for new energy vehicles, characterized in that, include: The detection base (1) is provided with two guide rails (10) and two mounting brackets (9). The two mounting brackets (9) are provided with the same linear screw (8), which is located between the two guide rails (10). A stepper motor (12) is mounted on one of the mounting brackets (9), and the output shaft of the stepper motor (12) is connected to one end of a linear lead screw (8) via a coupling. The active platform (2) is set on the linear screw (8) and two guide rails (10). The active platform (2) is provided with two fixed bases (13), and each of the two fixed bases (13) is provided with a fixed rod (14). Each of the two fixed rods (14) is provided with a detection plate (3). A fixed bracket (6) is provided on the detection base (1), and four guide holes (11) are provided on the fixed bracket (6). The isolation and leakage control unit (5) is mounted on the fixed bracket (6). The isolation and leakage control unit (5) includes two isolation cover frames (501) and four arc-shaped composite plates (502). Two adsorption limiting modules (7) are respectively set on two detection plates (3). The adsorption limiting module (7) includes two adsorption suction cups (706) and four elastic limiting frames (714). The isolation leak-prevention unit (5) also includes: Two rotating shaft seats (518) are respectively disposed on two isolation cover frames (501), and a passive gear ring (520) is provided on each of the two rotating shaft seats (518). Two support members (522) are respectively mounted on two isolation cover frames (501). Each of the two support members (522) is equipped with an active motor (515). The output shafts of the two active motors (515) are connected to active gears (521) through couplings. The two active gears (521) mesh with two passive gear rings (520) respectively. Two detection pumps (514) are respectively mounted on two rotating shaft seats (518); The isolation leak-prevention unit (5) also includes: Four electric push rods (519) are respectively set on two rotating shaft seats (518). The output ends of the two electric push rods (519) on the same rotating shaft seat (518) are both equipped with the same detection suction gun (516). Two connecting pipes (517) are respectively installed on two detection pumps (514), and the input ends of the two connecting pipes (517) are respectively installed on two detection suction guns (516).

2. The sealing performance testing equipment for new energy vehicles according to claim 1, characterized in that, The isolation leak-prevention unit (5) also includes: Four guide rods (506) are respectively disposed on the inner wall of four guide holes (11), and two isolation cover frames (501) are respectively disposed at one end of the four guide rods (506); Four telescopic springs (505) are respectively set on the outside of four guide rods (506). One end of each of the four telescopic springs (505) is fixedly connected to the outer walls of both sides of the fixed bracket (6), and the other end of each of the four telescopic springs (505) is fixedly connected to the outer wall of one side of the two isolation cover frames (501).

3. The sealing performance testing equipment for new energy vehicles according to claim 2, characterized in that, The isolation leak-prevention unit (5) also includes: Mounting plate (507) is mounted on fixed bracket (6). A general motor (508) is mounted on the mounting plate (507). The output shaft of the general motor (508) is connected to the mounting shaft (510) through a coupling. Two double-groove rollers (509) are mounted on the mounting shaft (510). Two connecting cables (503) are mounted on each of the two double-groove rollers (509). One end of each of the four connecting cables (503) is mounted on the outer wall of one side of the two isolation frames (501).

4. The sealing performance testing equipment for new energy vehicles according to claim 3, characterized in that, The isolation leak-prevention unit (5) also includes: Four fixed uprights (504) are respectively installed on two isolation cover frames (501); Four mounting poles (512) are respectively set on four arc-shaped composite plates (502), and the four arc-shaped composite plates (502) are respectively set on two isolation cover frames (501). Each of the two isolation cover frames (501) is provided with an inflation slot (511). Four electric telescopic poles (513) are respectively installed on four mounting poles (512) and four fixed poles (504).

5. A sealing performance testing device for new energy vehicles according to claim 1, characterized in that, Both of the two test plates (3) are equipped with battery pack bodies (4), and each of the two battery pack bodies (4) has four mounting holes. Both of the two fixed bases (13) are equipped with servo motors (15), and the output shafts of the two servo motors (15) are connected to one end of the two fixed rods (14) respectively through couplings.

6. A sealing performance testing device for new energy vehicles according to claim 5, characterized in that, The adsorption limiting module (7) further includes: A fixed plate frame (711) is set on the detection plate platform (3). An adsorption platform (705) is set on the fixed plate frame (711), and two adsorption suction cups (706) are set on the adsorption platform (705). A connecting chamber (716) is provided at the output end of two suction cups (706). A negative pressure pipe (709) is provided on the connecting chamber (716), and an air pump body (703) is provided at the output end of the negative pressure pipe (709).

7. A sealing performance testing device for new energy vehicles according to claim 6, characterized in that, The adsorption limiting module (7) further includes: An air intake pipe (701) is provided at the input end of the air pump body (703); An exhaust pipe (710) is provided at the output end of the air pump body (703). The output end of the air pump body (703) is also provided with a pressurization pipe (704). Control valves (702) are provided on the pressurization pipe (704), the exhaust pipe (710), the negative pressure pipe (709), and the air intake pipe (701).

8. A sealing performance testing device for new energy vehicles according to claim 7, characterized in that, The adsorption limiting module (7) further includes: Four delivery pipes (708) are provided on the pressurization pipe (704). Each of the four delivery pipes (708) has an air chamber (707) at its output end. Each of the four air chambers (707) has three air passages (712). Each of the three air passages (712) has the same expansion ring (713) at its output end. Four mounting rods (715) are all set on the detection plate (3). The four mounting rods (715) pass through the mounting holes. The four elastic limit frames (714) and four expansion rings (713) are respectively set on the four mounting rods (715). The four expansion rings (713) are respectively located inside the four elastic limit frames (714).

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