New energy battery pack detection equipment

Abstract

The invention relates to the field of battery pack detection, in particular to new energy battery pack detection equipment. Comprising a shell, a sliding support, a pressure sensor, a cover, a cooling liquid inlet, a driving assembly and the like. The shell is connected with a driving assembly; the driving assembly is connected with a sliding support. The shell is rotationally connected with a cover; the cover and the sliding bracket are fixedly connected with a plurality of pressure sensors; and the shell is fixedly connected with a cooling liquid inlet. Whether the battery pack swells or not during charging and discharging in a high-temperature environment is detected through the pressure sensor, the swelled battery pack falls into the cooling liquid at the lower end of the shell, and the battery pack is rapidly cooled, so that the temperature of the battery pack is reduced, and the service life of the battery pack is prolonged. And the battery pack is prevented from being ignited and exploded, so that the battery pack is timely cooled through cooling liquid which is put in the lower end of the shell in advance.

Description

Technical Field

[0001] The present invention relates to the field of battery pack detection, and in particular to a new energy battery pack detection device. Background Art

[0002] In the production process of new energy battery packs, it is usually necessary to test the charge and discharge of the battery packs. In daily life, the battery packs are affected by the external temperature when charging and discharging. When the external temperature is high, the battery packs are prone to overheating, causing bulging, or even fire and explosion. The prior art usually cools the battery packs by watering the batteries to avoid fire and explosion. However, due to the limited flow rate of water in the water pipes, it takes a long time to transport the water before the battery packs can be cooled. It is difficult to complete the cooling operation of the battery packs in time, resulting in some battery packs that are severely overheated still catching fire and exploding, causing damage to the testing equipment and nearby staff. Summary of the invention

[0003] In order to overcome the disadvantage that when cooling a battery pack by watering, the flow rate of water in a water pipe is limited and a long time is required to submerge the battery pack before cooling the battery pack, the present invention provides a new energy battery pack detection device.

[0004] The technical implementation scheme of the present invention is: a new energy battery pack detection equipment, including a shell, a sliding bracket, a pressure sensor, a cover, a coolant inlet and a drive assembly; the shell is connected to the drive assembly; the drive assembly is connected to the sliding bracket, and the sliding bracket is composed of a number of cross bars, and the drive assembly is used to drive the sliding bracket to move up and down; the shell is rotatably connected to the cover; the cover and the sliding bracket are fixedly connected to a number of pressure sensors; the shell is fixedly connected to the coolant inlet; it also includes a fixed frame, a plug, a push rod, a sliding block, a clamping frame and a drive assembly; the shell is slidably connected to a number of fixed frames; the fixed frame is slidably connected to a number of sliding blocks; each sliding block is connected to a plug; the shell is fixedly connected to a number of push rods, and the telescopic ends of each two adjacent push rods are fixedly connected to the adjacent fixed frames; each fixed frame is connected to a clamping frame.

[0005] More preferably, the sliding block and the plug are detachably connected, and the fixing frame and the clamping frame are detachably connected.

[0006] More preferably, the cover is provided with deformable thermal insulation cotton.

[0007] More preferably, it also includes a sealing plate and a spring telescopic rod I; the outer shell is slidably connected to the sealing plate, and the sealing plate is provided with a plurality of transverse holes, and the transverse holes on the sealing plate cooperate with the transverse rods provided on the sliding bracket, and the sealing plate and the sliding bracket are combined into a flat plate; the sealing plate is fixedly connected to a plurality of spring telescopic rods I, and the other end of the spring telescopic rod I is fixedly connected to the outer shell.

[0008] More preferably, it further comprises a limiting block, the housing is fixedly connected with a plurality of limiting blocks, and the distance between the limiting blocks is smaller than the width and length of the sealing plate, but larger than the width and length of the sliding bracket.

[0009] More preferably, a plurality of triangular prisms are provided at the lower end of the sliding bracket.

[0010] More preferably, a plurality of triangular prisms are also arranged on the side surface of the sealing plate.

[0011] More preferably, it further comprises a connecting rod and a limiting plate; the outer shell is fixedly connected to the connecting rod; the connecting rod is slidably connected to a plurality of limiting plates, and the positions of the limiting plates correspond to the fixing frame.

[0012] More preferably, a fan is further included, and a plurality of fans are fixedly connected to the fixing frame, and the front fan and the rear fan have opposite directions.

[0013] More preferably, it further includes a protective tube; the outer shell is fixedly connected to a connecting rod; the connecting rod is slidably connected to a plurality of protective tubes, and the position of the protective tube corresponds to the position of the plug, and the inner diameter of the protective tube is consistent with the outer diameter of the plug.

[0014] The beneficial effect is as follows: the present invention detects whether the battery pack has bulging phenomenon when charging and discharging in a high temperature environment through a pressure sensor, and quickly cools the battery pack by dropping the bulging battery pack into the coolant at the lower end of the shell, so that the battery pack temperature drops, and the battery pack is prevented from catching fire and exploding. The battery pack is timely cooled by the coolant placed in the lower end of the shell, and the problem that when the battery pack is cooled by watering in the prior art, the flow speed of water in the water pipe is limited, and it takes a long time to transport water before the battery pack can be cooled, and it is difficult to complete the cooling operation of the battery pack in time, resulting in that some battery packs with serious overheating still have the situation of catching fire and exploding, causing damage to the detection equipment and nearby staff; The sealing plate and the sliding bracket are completely fitted together in the present invention, so that hot air cannot enter below the sliding bracket and the sealing plate, thereby preventing the heat in the hot air from being absorbed by the coolant below the sealing plate, resulting in a poor effect of the hot air on raising the temperature inside the housing. The present invention uses a sealing plate to prevent the battery pack from falling down and hitting the sliding bracket and the pressure sensor, thereby damaging the sliding bracket and the pressure sensor. The present invention limits the position of the battery pack by a limiting plate, so that the battery pack cannot move with the fixing frame, thereby avoiding the problem that the end of the battery pack moving together with the clamping frame will be stuck on the clamping frame, so that the end of the battery pack moving together with the clamping frame cannot fall normally; The present invention uses a protective tube to block the coolant splashing upwards from splashing onto the plug, and uses air to spray out from the end of the protective tube away from the shell to blow out part of the coolant that has entered the protective tube, thereby avoiding the problem that when the plug moves toward the shell again, the plug will be stained with the coolant in the protective tube, which will still affect the subsequent charging and discharging detection of a new battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure disclosed by the new energy battery pack detection device of the present invention; Figure 2 A cross-sectional view of a housing and a cover disclosed by the new energy battery pack detection device of the present invention; Figure 3 A schematic diagram of the combined structure of the housing, fixing frame, plug, sliding bracket, pressure sensor, sliding block, clamping frame, slide rail, slider, sealing plate, limit plate, protective tube and connecting rod disclosed in the new energy battery pack detection device of the present invention; Figure 4 A cross-sectional view of the protective tube disclosed by the new energy battery pack detection equipment of the present invention; Figure 5 A schematic diagram of the combined structure of the housing, the fixing frame, the plug, the push rod, the sliding bracket, the sliding block and the clamping frame disclosed in the new energy battery pack detection device of the present invention; Figure 6 A schematic diagram of the combined structure of the housing, the fixing frame, the sliding bracket, the coolant inlet, the clamping frame, the slide rail, the slider and the sealing plate disclosed in the new energy battery pack detection device of the present invention; Figure 7 A schematic diagram of the structure of a cover disclosed by the new energy battery pack detection device of the present invention; Figure 8 A schematic diagram of the combined structure of the housing, sliding bracket, pressure sensor, cover, sealing plate, spring telescopic rod I, limit block and fan disclosed in the new energy battery pack detection device of the present invention; Fig. 9 This is a state diagram of the battery pack disclosed by the new energy battery pack detection device of the present invention after falling downward.

[0016] Among them, the above-mentioned drawings include the following figure marks: 1-housing, 2-fixed frame, 3-plug, 4-push rod, 5-sliding bracket, 6-pressure sensor, 7-cover, 8-cooling liquid inlet, 9-sliding block, 10-clamping frame, 101-slide rail, 102-slider, 301-sealing plate, 302-spring telescopic rod I, 303-limiting block, 401-limiting plate, 501-fan, 601-protective tube, 602-connecting rod, 60101-air outlet, 7001-deformable thermal insulation cotton. DETAILED DESCRIPTION

[0017] 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 described embodiments 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.

[0018] Embodiment 1: A new energy battery pack detection device, such as Figure 1-Figure 3 and Figure 5-Figure 9 As shown, it includes a shell 1, a sliding bracket 5, a pressure sensor 6, a cover 7, a coolant inlet 8 and a driving assembly; the shell 1 is connected to the driving assembly; the driving assembly is connected to the sliding bracket 5, and the sliding bracket 5 is composed of a plurality of cross bars, and the driving assembly is used to drive the sliding bracket 5 to move up and down; the shell 1 is rotatably connected to the cover 7; the cover 7 and the sliding bracket 5 are fixedly connected to a plurality of pressure sensors 6, and the pressure sensors 6 are used to detect whether the battery pack is bulging; the shell 1 is fixedly connected to the coolant inlet 8, and the coolant inlet 8 is connected to an external coolant pump, and coolant is input into the shell 1 through the coolant inlet 8 to cool the bulging battery pack to prevent the battery pack from catching fire and exploding; It also includes a fixed frame 2, a plug 3, a push rod 4, a sliding block 9, a clamping frame 10 and a driving assembly; the outer shell 1 is slidably connected to two fixed frames 2; the left fixed frame 2 is slidably connected to two sliding blocks 9; each sliding block 9 is connected to a plug 3; the outer shell 1 is fixedly connected to four rectangularly distributed push rods 4, and the telescopic ends of each two adjacent push rods 4 are fixedly connected to the adjacent fixed frames 2; each fixed frame 2 is connected to the clamping frame 10.

[0019] The driving assembly includes a slide rail 101 and a slider 102 ; the housing 1 is fixedly connected to the two slide rails 101 , all the slide rails 101 are slidably connected to a slider 102 , and each slider 102 is fixedly connected to the sliding bracket 5 .

[0020] The sliding block 9 and the plug 3 are detachably connected, and the fixing frame 2 and the clamping frame 10 are detachably connected.

[0021] The cover 7 is provided with a deformable thermal insulation cotton 7001 , and the deformable thermal insulation cotton 7001 blocks the hot air in the housing 1 from flowing out from the plug 3 .

[0022] It also includes a sealing plate 301 and a spring telescopic rod Ⅰ302; the outer shell 1 is slidably connected to the sealing plate 301, and the sealing plate 301 is provided with a plurality of transverse holes, and the transverse holes on the sealing plate 301 match the transverse rods provided on the sliding bracket 5, and the sealing plate 301 and the sliding bracket 5 are combined into a flat plate; the sealing plate 301 is fixedly connected to four rectangularly distributed spring telescopic rods Ⅰ302, and the other end of the spring telescopic rod Ⅰ302 is fixedly connected to the outer shell 1.

[0023] It also includes a limiting block 303 . The housing 1 is fixedly connected to two limiting blocks 303 . The distance between the two limiting blocks 303 is smaller than the width and length of the sealing plate 301 , but larger than the width and length of the sliding bracket 5 .

[0024] A plurality of triangular prisms are provided at the lower end of the sliding bracket 5. The triangular prisms at the lower ends of the sliding bracket 5 and the limit block 303 guide the coolant to flow out from the holes of the sliding bracket 5 and the limit block 303, thereby reducing the resistance encountered by the sliding bracket 5 and the limit block 303 when moving downward in the coolant.

[0025] A plurality of triangular prisms are also provided on the upper side of the sealing plate 301, so that the coolant can better enter between the sealing plate 301 and the battery pack, thereby better cooling the battery pack.

[0026] It also includes a connecting rod 602 and a limiting plate 401 ; the housing 1 is fixedly connected to the connecting rod 602 ; the connecting rod 602 is slidably connected to two limiting plates 401 , and the position of the limiting plates 401 corresponds to the fixing frame 2 .

[0027] The working steps of the above embodiment are: first, the staff opens the cover 7, and then the staff installs the clamping frame 10 that matches the battery pack to be tested on the fixing frame 2, and engages the plug 3 that matches the battery pack to be tested on the sliding block 9. Then the staff uses the crane to lift the battery pack to the top of the shell 1, and then lifts the battery pack downward to between the two fixing frames 2. Then the staff pushes the sliding block 9 and the plug 3 to move back and forth. When the two plugs 3 are aligned with the charging port and the discharging port of the battery pack respectively, the fixing frame 2 and all the parts connected to it are pushed toward the shell 1 by the push rod 4. The battery pack can be moved so that the battery pack can be clamped and fixed by the clamping frame 10 to prevent the battery pack from falling down after the connection with the crane is interrupted, and the front and rear positions of the battery pack can be adjusted by the clamping frame 10 so that the battery pack is in the middle position of two adjacent clamping frames 10, so that the two plugs 3 can be directly inserted into the charging port and the discharging port of the battery pack after the two plugs 3 are moved, avoiding the battery pack from moving back and forth, which makes it difficult to insert the plug 3 into the charging port and the discharging port of the battery pack; after the plug 3 is inserted into the charging port and the discharging port of the battery pack, the plug 3 is connected to the discharge device and the charging device of the external device through wires to facilitate subsequent detection. When the battery pack is fixed, the staff will loosen the crane connected to the battery pack and then close the cover 7. After the cover 7 is closed, the pressure sensor 6 on the cover 7 will contact the upper side of the battery pack, and when the battery pack moves downward to between the two adjacent clamping frames 10 on the left and right, the lower side of the battery pack will fit with the pressure sensor 6 on the sliding bracket 5, so that all the pressure sensors 6 will fit with the upper and lower sides of the battery pack respectively, which is convenient for monitoring the upper and lower sides of the battery pack during the subsequent charging and discharging of the battery pack, so that the bulging of the battery pack can be discovered in time; then the discharge equipment and charging equipment of the external device are connected. The device charges and discharges the battery pack through the plug 3, and inputs hot air into the outer shell 1 through the air inlet on the cover 7 of the external hot air delivery device, so that the temperature in the outer shell 1 increases, thereby simulating the battery pack to be charged and discharged in a high temperature environment; and because the sliding bracket 5 and the sealing plate 301 are completely fitted at this time, the hot air cannot enter under the sliding bracket 5 and the sealing plate 301, thereby avoiding the heat in the hot air being absorbed by the coolant under the sealing plate 301, causing the temperature increase effect in the outer shell 1 to deteriorate; after the battery pack is charged and discharged in a high temperature environment for a period of time, the pressure sensor 6 is used to detect whether the battery pack has a bulging phenomenon.After the battery pack is charged and discharged in such a high temperature environment for a period of time, if there is no bulging in the battery pack, the battery pack charge and discharge detection is completed, and then the staff opens the cover 7, connects the crane to the battery pack, and then pushes the fixing frame 2 to move away from the outer shell 1 through the push rod 4. The fixing frame 2 drives the clamping frame 10 to move, so that the clamping frame 10 no longer fixes the battery pack, and then the staff uses the crane to lift the battery pack out of the outer shell 1, and lifts the battery pack to the battery pack storage place, and then lifts the new battery pack into the outer shell 1 by the crane, so as to test the new battery pack.

[0028] During the process of charging and discharging the battery pack, when the battery pack is affected by high temperature, the battery pack will thermally run away, causing the battery pack to swell, and in severe cases, the battery will catch fire and explode, causing damage to the components of the present invention. Therefore, when the battery pack swells, the bulge will squeeze the pressure sensor 6 which is closer, so that the pressure on the pressure sensor 6 increases, and then the sliding bracket 5 and the pressure sensor 6 are immediately driven downward by the slider 102, and at the same time, the fixing frame 2 is pushed away from the outer shell 1 by the push rod 4, and the fixing frame 2 drives the clamping frame 10 to move away from the outer shell 1, so that the clamping frame 10 no longer fixes the battery pack, and the plug 3 is immediately separated from the charging port and the discharging port of the battery pack, so as to stop the charging and discharging of the battery pack in time, and avoid further thermal runaway of the battery pack caused by continued charging and discharging, and then the battery pack immediately falls downward from the clamping frame 10 into the coolant at the lower end of the outer shell 1; It should be noted that when the battery pack falls, the sliding bracket 5 and the pressure sensor 6 have moved downward to a state of contact with the bottom surface of the outer shell 1, and then the battery pack falls onto the sealing plate 301. The battery pack squeezes the sealing plate 301, causing the sealing plate 301 to move downward, and the spring telescopic rod Ⅰ302 is compressed. When the sealing plate 301 moves downward to contact the limit block 303, since the distance between the two limit blocks 303 is less than the width and length of the sealing plate 301, the sealing plate 301 cannot pass between the two limit blocks 303, so that the sealing plate 301 and the battery pack cannot continue to move downward. At this time, the sliding bracket 5 and the pressure sensor 6 are below the sealing plate 301, thereby avoiding the problem that the battery pack falls downward and hits the sliding bracket 5 and the pressure sensor 6, thereby damaging the sliding bracket 5 and the pressure sensor 6; at this time, the battery pack will be completely in the coolant at the lower end of the outer shell 1, as shown in Fig. 9The state shown in the figure is achieved by rapidly cooling the battery pack through the coolant at the lower end of the shell 1, so that the temperature of the battery pack drops, and the battery pack is promptly cooled by the coolant placed in the lower end of the shell 1, thereby avoiding the problem that when the battery pack is cooled by pouring coolant in the prior art, the flow rate of the coolant in the coolant pipe is limited, and a long time is required to transport the coolant before the battery pack can be cooled, and it is difficult to complete the cooling operation of the battery pack in time, resulting in some battery packs being overheated and severely caught fire and exploded, causing damage to the detection equipment and nearby staff.

[0029] It should be noted that due to the large weight of the battery pack, the friction between the battery pack and the clamping frame 10 is relatively high. Therefore, in the process of the clamping frame 10 moving in the direction away from the housing 1, the battery pack will be driven to move together under the action of friction, causing the end of the battery pack that moves with the fixing frame 2 to be stuck on the clamping frame 10, making it impossible for the end of the battery pack that moves with the clamping frame 10 to fall normally. Therefore, the battery pack will enter the coolant at the lower end of the housing 1 in an inclined state, making it impossible for the battery pack to completely enter the coolant, resulting in the coolant being unable to completely cool the battery pack, and there is still a risk of fire and explosion of the battery pack. Therefore, when the staff hoisted the battery pack into When between two adjacent clamping frames 10 on the left and right, the staff pushes the limit plate 401 to move forward and backward so that the limit plate 401 is between the two adjacent clamping frames 10 on the left and right. Since the distance between the two adjacent limit plates 401 on the left and right is consistent with the length of the battery pack, the limit plate 401 will fit with the left and right sides of the battery pack. Therefore, when the clamping frame 10 moves in the direction away from the outer shell 1, the battery pack is limited by the limit plate 401, so that the battery pack cannot move with the clamping frame 10, avoiding the problem that the end of the battery pack that moves with the clamping frame 10 will be stuck on the clamping frame 10, making the end of the battery pack that moves with the clamping frame 10 unable to fall normally.

[0030] Embodiment 2: Based on embodiment 1, Figure 5 and Figure 7-Figure 8 As shown, a fan 501 is also included. The fixing frame 2 is fixedly connected to six fans 501, and the front fan 501 is in opposite directions to the rear fan 501. The fan 501 blows hot air and cold air to circulate around the battery pack, so that the hot air or cold air contacted by various parts of the battery pack will be more uniform.

[0031] It also includes a protective cylinder 601; the outer shell 1 is fixedly connected to a connecting rod 602; the connecting rod 602 is slidably connected to two protective cylinders 601, and the position of the protective cylinder 601 corresponds to the position of the plug 3, and the inner diameter of the protective cylinder 601 is consistent with the outer diameter of the plug 3, and the protective cylinder 601 is used to prevent the coolant splashing upward from splashing onto the plug 3; and the protective cylinder 601 is set to be hollow, and a plurality of air outlet holes 60101 are set on the side of the protective cylinder 601 close to the battery pack.

[0032] The working steps of the above embodiment are: during the charge and discharge detection of the battery pack, the temperature of the battery pack portion closer to the hot air port or the cold air port of the outer shell 1 will be more affected, resulting in uneven temperature of the battery pack, which affects the charge and discharge detection of the battery pack. Therefore, when the battery pack is subjected to charge and discharge detection, the fan 501 blows hot air and cold air to circulate around the battery pack, so that the hot air or cold air contacted by various parts of the battery pack will be more uniform, avoiding the problem of uneven temperature of the battery pack affecting the charge and discharge detection of the battery pack.

[0033] When the battery pack falls into the coolant, the coolant will splash upward and splash onto the plug 3, resulting in a large amount of coolant on the plug 3, which will affect the subsequent charge and discharge detection of the new battery pack. Therefore, when pushing the sliding block 9 to move back and forth to align the plug 3 with the charging port and the discharging port of the battery pack, the staff will push the protective cylinder 601 to move the protective cylinder 601 to move it between the plug 3 and the charging port and the discharging port of the battery pack. Therefore, after the fixing frame 2 moves away from the shell 1, the plug 3 will completely enter the protective cylinder 601 to prevent the coolant splashing upward from splashing onto the plug 3; when the splashed coolant contacts other components such as the fixing frame 2 and the cover 7, it will splash coolant again, causing some coolants to splash onto the plug 3. Cooling liquid splashes into the protective tube 601, causing the plug 3 to be stained with the coolant in the protective tube 601 when the plug 3 moves toward the shell 1 again, which will still affect the subsequent charging and discharging detection of the new battery pack. Therefore, air is input into the protective tube 601 through an air pump, and then the air is ejected from the air outlet 601. Since the end of the protective tube 601 close to the shell 1 is blocked by the plug 3, the air can only be ejected from the end of the protective tube 601 away from the shell 1, thereby blowing out part of the coolant entering the protective tube 601, avoiding the problem that the plug 3 is stained with the coolant in the protective tube 601 when the plug 3 moves toward the shell 1 again, which will still affect the subsequent charging and discharging detection of the new battery pack.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A new energy battery pack testing device, comprising a housing (1), a sliding bracket (5), a pressure sensor (6), a cover (7), a coolant inlet (8) and a drive assembly; the housing (1) is connected to the drive assembly; the drive assembly is connected to the sliding bracket (5), and the sliding bracket (5) is composed of a plurality of cross bars, and the drive assembly is used to drive the sliding bracket (5) to move up and down; the housing (1) is rotatably connected to the cover (7); the cover (7) and the sliding bracket (5) are both fixedly connected to a plurality of pressure sensors (6); the housing (1) is fixedly connected to the coolant inlet (8); the characteristics are: The invention also comprises a fixing frame (2), a plug (3), a push rod (4), a sliding block (9), a clamping frame (10) and a driving assembly; the outer shell (1) is slidably connected to a plurality of fixing frames (2); the fixing frame (2) is slidably connected to a plurality of sliding blocks (9); each sliding block (9) is connected to a plug (3); the outer shell (1) is fixedly connected to a plurality of push rods (4), and the telescopic ends of each two adjacent push rods (4) are fixedly connected to the adjacent fixing frames (2); each fixing frame (2) is connected to the clamping frame (10).

2. A new energy battery pack detection device according to claim 1, characterized in that: The sliding block (9) and the plug (3) are detachably connected, and the fixing frame (2) and the clamping frame (10) are detachably connected.

3. A new energy battery pack detection device according to claim 2, characterized in that: The cover (7) is provided with deformable thermal insulation cotton (7001), and the deformable thermal insulation cotton (7001) is provided with deformable thermal insulation cotton (7001).

4. A new energy battery pack detection device according to any one of claims 2-3, characterized in that: It also includes a sealing plate (301) and a spring telescopic rod I (302); the outer shell (1) is slidably connected to the sealing plate (301), and the sealing plate (301) is provided with a plurality of transverse holes, and the transverse holes on the sealing plate (301) match with the transverse rods provided on the sliding bracket (5), and the sealing plate (301) and the sliding bracket (5) are combined into a flat plate; the sealing plate (301) is fixedly connected to the plurality of spring telescopic rods I (302), and the other end of the spring telescopic rod I (302) is fixedly connected to the outer shell (1).

5. A new energy battery pack detection device according to claim 4, characterized in that: It also includes a limiting block (303), the housing (1) is fixedly connected with a plurality of limiting blocks (303), and the distance between the limiting blocks (303) is smaller than the width and length of the sealing plate (301), but larger than the width and length of the sliding bracket (5).

6. A new energy battery pack testing device according to claim 5, characterized in that: A plurality of triangular prisms are arranged at the lower end of the sliding bracket (5).

7. A new energy battery pack testing device according to claim 5, characterized in that: A plurality of triangular prisms are also arranged on the upper side of the sealing plate (301).

8. A new energy battery pack testing device according to claim 5, characterized in that: It also includes a connecting rod (602) and a limiting plate (401); the outer shell (1) is fixedly connected to the connecting rod (602); the connecting rod (602) is slidably connected to a plurality of limiting plates (401), and the position of the limiting plates (401) corresponds to the fixing frame (2).

9. A new energy battery pack testing device according to claim 8, characterized in that: It also includes fans (501), and a plurality of fans (501) are fixedly connected to the fixing frame (2), and the fans (501) at the front and the fans (501) at the rear are in opposite directions.

10. A new energy battery pack testing device according to claim 9, characterized in that: It also includes a protective tube (601); the outer shell (1) is fixedly connected to a connecting rod (602); the connecting rod (602) is slidably connected to a plurality of protective tubes (601), and the position of the protective tube (601) corresponds to the position of the plug (3), and the inner diameter of the protective tube (601) is consistent with the outer diameter of the plug (3).

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