New energy automobile battery airtightness detection device

Abstract

The utility model relates to the technical field of new energy automobiles, in particular to a new energy automobile battery airtightness detection device which comprises a bottom plate, a detection box is arranged above the bottom plate, a box cover is arranged under the detection box, an air pressure sensor is arranged at the top end in the detection box, and an air tank is installed on the outer wall of the detection box. An air pump is arranged on the outer side of the air tank, an air guide pipe is communicated between the air pump and the detection box, the box cover and the battery are close to the detection box until the box cover completely closes the detection box, at the moment, the battery is located in the detection box, and detection work can be carried out. The battery is driven to enter the detection box through the movement of the box cover, so that the operation is simpler and more convenient, the slope table is matched, the movement work of the battery is time-saving and labor-saving, the working efficiency is effectively improved, the control is convenient, and the automation degree is high.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, in particular to a new energy vehicle battery air tightness detection device. Background Art

[0002] The new energy vehicle battery air tightness test device is designed to meet the production and quality control needs of new energy vehicle batteries. The air tightness of the battery is crucial to the performance, safety and life of new energy vehicles. Therefore, air tightness testing is an indispensable part of the battery production process.

[0003] Chinese patent (patent number: CN218035584U, discloses a new energy vehicle battery air tightness detection device). When the new energy vehicle battery air tightness detection device is used for detection, the new energy vehicle battery is placed in the detection chamber of the detection box, and then the box cover is closed and fixed by a buckle to seal the detection chamber. Then, the air pump is turned on to fill the detection chamber with gas. If the air pressure in the detection chamber detected by the air pressure meter changes, and the change range is large, it indicates that the air tightness of the vehicle battery is not good, and the gas enters the interior of the vehicle battery, thereby causing the air pressure in the detection chamber to decrease. Similarly, if the air pressure in the detection chamber detected by the air pressure meter remains unchanged, or the change range is small, it indicates that the air tightness of the vehicle battery is good. In summary, the air tightness of the battery is detected by the change of the air pressure value, the detection result is accurate, and the detection method is simple;

[0004] However, the main body of the airtightness detection device is a detection box with an overall square structure, and a detection chamber is arranged inside the detection box. In actual operation, the battery needs to be placed inside the detection chamber, and the battery of new energy vehicles is large in size and heavy in weight, which makes it difficult to move the battery. External lifting equipment is required to move the battery into the detection chamber, and the battery needs to be taken out after the detection is completed. The operation is cumbersome, time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of the utility model is to provide a new energy vehicle battery air tightness detection device, which has the characteristics of simpler and more convenient operation, saving time and effort in moving the battery, effectively improving work efficiency, and convenient control and high degree of automation.

[0006] To achieve the above object, the utility model provides the following technical solutions: a new energy vehicle battery air tightness detection device, comprising a bottom plate, a detection box is arranged above the bottom plate, a box cover is arranged directly below the detection box, an air pressure sensor is arranged at the top of the detection box, a gas tank is installed on the outer wall of the detection box, an air pump is arranged on the outer side of the gas tank, and an air guide pipe is connected between the air pump and the detection box;

[0007] The left side of the upper end surface of the bottom plate is fixedly connected with a vertical plate, and the lower and upper outer walls of the vertical plate are respectively fixedly connected with a lower plate and an upper plate, the detection box and the lower end surface of the upper plate are fixedly connected, a screw rod is rotatably connected between the lower plate and the upper plate, a sliding rod located on the right side of the screw rod is fixedly connected between the lower plate and the upper plate, the outer walls of the screw rod and the sliding rod are respectively movably connected with a movable block and a sliding block, the movable block and the sliding block are fixedly connected, the other side of the sliding block is fixedly connected with a connecting frame, the left side wall of the box cover is fixedly connected with a connecting plate, and the connecting frame and the connecting plate are fixedly connected.

[0008] In order to facilitate moving the battery to the upper end of the box cover, as a preferred new energy vehicle battery air tightness detection device of the utility model, a ramp platform is provided on the right side of the box cover, and the upper end surface of the ramp platform is rotatably connected to a plurality of evenly distributed rollers.

[0009] In order to cushion the box cover, as a preferred new energy vehicle battery air tightness detection device of the utility model, four buffer springs distributed in a rectangular shape and located below the box cover are fixedly connected to the upper end surface of the bottom plate.

[0010] In order to position the box cover and the test box, as a preferred new energy vehicle battery air tightness detection device of the utility model, the four corners of the upper end surface of the box cover are fixedly connected with positioning rods, and the four corners of the lower end surface of the test box are provided with positioning holes matching the positioning rods.

[0011] In order to improve the sealing between the detection box and the box cover, as a preferred embodiment of the utility model of a new energy vehicle battery air tightness detection device, a sealing ring is provided at the periphery of the upper end surface of the box cover.

[0012] In order to drive the screw to rotate, as a preferred new energy vehicle battery air tightness detection device of the utility model, a motor is installed on the upper end surface of the upper plate, and the output end of the motor is fixedly connected to the screw.

[0013] In order to improve the degree of automation of the equipment, as a preferred new energy vehicle battery air tightness detection device of the utility model, a control panel is installed on the outer wall of the vertical plate, and the air pressure sensor, air pump and motor are all electrically connected to the control panel.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] When conducting air tightness testing on new energy vehicle batteries, first, with the assistance of a ramp, the battery is moved to the upper end of the box cover. The highest point of the ramp is flush with the upper end of the box cover, and through a plurality of rotatable rollers, the battery can be easily moved to the upper end of the box cover. Then, the motor is started to drive the screw to rotate, and the screw drives the movable block to move upward. The movable block further drives the slider to slide upward on the outer wall of the slide rod, and the slider drives the box cover to move upward through the connecting frame, so that the box cover and the battery are moved closer to the inspection box until the box cover completely closes the inspection box. At this time, the battery is located inside the inspection box and the inspection work can be carried out. This equipment fixes the position of the inspection box by inverting the inspection box, and drives the battery into the inspection box by moving the box cover, so that the operation is simpler and more convenient. With the ramp, the battery movement work saves time and effort, effectively improves work efficiency, and is easy to control and has a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall cross-sectional structural diagram of the utility model;

[0017] Figure 2 This is the overall external structure diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the utility model in the closed state of the box cover.

[0019] In the figure: 1, bottom plate; 2, detection box; 3, box cover; 4, air pressure sensor; 5, gas tank; 6, air pump; 7, air guide tube; 8, vertical plate; 9, lower plate; 10, upper plate; 11, screw rod; 12, slide rod; 13, movable block; 14, slider; 15, connecting frame; 16, connecting plate; 17, ramp; 18, roller; 19, buffer spring; 20, positioning rod; 21, sealing ring; 22, motor; 23, control panel. DETAILED DESCRIPTION

[0020] See also Figures 1 to 3 A new energy vehicle battery air tightness detection device comprises a bottom plate 1, a detection box 2 is arranged above the bottom plate 1, a box cover 3 is arranged directly below the detection box 2, an air pressure sensor 4 is arranged at the top of the inner part of the detection box 2, a gas tank 5 is installed on the outer wall of the detection box 2, an air pump 6 is arranged on the outer side of the gas tank 5, and an air guide pipe 7 is connected between the air pump 6 and the detection box 2;

[0021] A vertical plate 8 is fixedly connected to the left side of the upper end surface of the bottom plate 1, and a lower flat plate 9 and an upper flat plate 10 are fixedly connected to the lower and upper sides of the outer walls of the vertical plate 8 respectively. The detection box 2 is fixedly connected to the lower end surface of the upper flat plate 10, a screw rod 11 is rotatably connected between the lower flat plate 9 and the upper flat plate 10, a sliding rod 12 located on the right side of the screw rod 11 is fixedly connected between the lower flat plate 9 and the upper flat plate 10, and a movable block 13 and a sliding block 14 are movably connected to the outer walls of the screw rod 11 and the sliding block 14 respectively, the movable block 13 and the sliding block 14 are fixedly connected, and a connecting frame 15 is fixedly connected to the other side of the sliding block 14, and a connecting plate 16 is fixedly connected to the left side wall of the box cover 3, and the connecting frame 15 and the connecting plate 16 are fixedly connected.

[0022] In this embodiment: when performing air tightness testing on the battery of a new energy vehicle, first, with the assistance of the ramp platform 17, the battery is moved to the upper end of the box cover 3, the highest point of the ramp platform 17 is flush with the upper end of the box cover 3, and through a plurality of rotatable rollers 18, the battery can be easily moved to the upper end of the box cover 3, and then the motor 22 is started to drive the screw rod 11 to rotate, the screw rod 11 drives the movable block 13 to move upward, the movable block 13 further drives the slider 14 to slide upward on the outer wall of the slide rod 12, and the slider 14 drives the box cover 3 to move upward through the connecting frame 15, so that the box cover 3 and the battery are close to the detection box 2 until the box cover 3 completely closes the detection box 2. At this time, the battery is located inside the detection box 2, and the detection work can be carried out. The device fixes the position of the detection box 2 by inverting the detection box 2, and drives the battery into the detection box 2 by moving the box cover 3, so that the operation is simpler and more convenient, and cooperates with the ramp platform 17 to save time and effort in moving the battery, effectively improve the work efficiency, and at the same time, it is easy to control and has a high degree of automation;

[0023] After placing the battery into the testing box 2, turn on the air pump 6 to introduce the gas inside the gas tank 5 into the testing room. If the air pressure in the testing room of the air pressure sensor 4 changes and the change range is large, it means that the air tightness of the car battery is not good, and the gas enters the car battery, causing the air pressure in the testing room to decrease. Similarly, if the air pressure in the testing room of the air pressure sensor 4 remains unchanged or the change range is small, it means that the air tightness of the car battery is good. In summary, the air tightness of the battery is detected by the change of the air pressure value, the detection result is accurate, and the detection method is simple.

[0024] As a technical optimization solution of the utility model, a ramp platform 17 is arranged on the right side of the box cover 3, and the upper end surface of the ramp platform 17 is rotatably connected to a plurality of evenly distributed rollers 18.

[0025] In this embodiment, the highest point of the ramp 17 is flush with the upper end of the box cover 3 , and the batteries can be easily moved to the upper end of the box cover 3 through a plurality of rotatable rollers 18 .

[0026] As a technical optimization solution of the utility model, four buffer springs 19 distributed in a rectangular shape and located below the box cover 3 are fixedly connected to the upper end surface of the bottom plate 1 .

[0027] In this embodiment, when the box cover 3 is opened and lowered, the bottom buffer spring 19 can buffer the box cover 3 to prevent the box cover 3 from being damaged.

[0028] As a technical optimization solution of the utility model, positioning rods 20 are fixedly connected to the four corners of the upper end surface of the box cover 3, and positioning holes matching the positioning rods 20 are opened at the four corners of the lower end surface of the detection box 2.

[0029] In this embodiment, during the closing process of the box cover 3, the four positioning rods 20 extend into the four positioning holes respectively. When the box cover 3 rises, the positioning rods 20 slide inside the positioning holes to play a positioning role, so that the box cover 3 can be closed smoothly.

[0030] As a technical optimization solution of the present invention, a sealing ring 21 is provided at the periphery of the upper end surface of the box cover 3 .

[0031] In this embodiment: a sealing ring 21 is provided at the periphery of the upper end surface of the box cover 3 to ensure the sealing inside the detection box 2, thereby ensuring that the battery airtightness detection is more accurate.

[0032] As a technical optimization solution of the utility model, a motor 22 is installed on the upper end surface of the upper plate 10 , and the output end of the motor 22 is fixedly connected to the screw rod 11 .

[0033] In this embodiment, the output end of the motor 22 is fixedly connected to the screw rod 11 to provide power for the rotation of the screw rod 11 .

[0034] As a technical optimization solution of the present invention, a control panel 23 is installed on the outer wall of the vertical plate 8 , and the air pressure sensor 4 , the air pump 6 and the motor 22 are all electrically connected to the control panel 23 .

[0035] In this embodiment, the air pressure sensor 4, the air pump 6 and the motor 22 are controlled by operating the control panel 23, thereby improving the degree of automation.

[0036] Working principle: When conducting air tightness test on new energy vehicle battery, firstly, with the aid of ramp 17, move the battery to the upper end of box cover 3. The highest point of ramp 17 is flush with the upper end of box cover 3, and through multiple rotatable rollers 18, the battery can be easily moved to the upper end of box cover 3. Then, start motor 22 to drive screw 11 to rotate, screw 11 drives movable block 13 to move upward, movable block 13 further drives slider 14 to slide upward on the outer wall of slide bar 12, and slider 14 drives box cover 3 to move upward through connecting frame 15, so that box cover 3 and battery are close to test box 2 until box cover 3 is closed. Completely close the test box 2. At this time, the battery is inside the test box 2, and the test can be carried out. Then turn on the air pump 6 to introduce the gas inside the gas tank 5 into the test chamber. If the air pressure in the test chamber of the air pressure sensor 4 changes, and the change range is large, it means that the air tightness of the car battery is not good, and the gas enters the car battery, causing the air pressure in the test chamber to decrease. Similarly, if the air pressure in the test chamber of the air pressure sensor 4 remains unchanged, or the change range is small, it means that the air tightness of the car battery is good. In summary, the air tightness of the battery is tested by the change of the air pressure value, the test result is accurate, and the detection method is simple.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new energy vehicle battery air tightness detection device, comprising a base plate (1), characterized in that: A detection box (2) is arranged above the bottom plate (1), a box cover (3) is arranged directly below the detection box (2), an air pressure sensor (4) is arranged at the top of the interior of the detection box (2), an air tank (5) is installed on the outer wall of the detection box (2), an air pump (6) is arranged on the outer side of the air tank (5), and an air guide pipe (7) is connected between the air pump (6) and the detection box (2); The left side of the upper end surface of the bottom plate (1) is fixedly connected with a vertical plate (8), the lower and upper sides of the outer walls of the vertical plate (8) are respectively fixedly connected with a lower plate (9) and an upper plate (10), the lower end surfaces of the detection box (2) and the upper plate (10) are fixedly connected, a screw rod (11) is rotatably connected between the lower plate (9) and the upper plate (10), a sliding rod (12) located on the right side of the screw rod (11) is fixedly connected between the lower plate (9) and the upper plate (10), the outer walls of the screw rod (11) and the sliding rod (12) are respectively movably connected with a movable block (13) and a sliding block (14), the movable block (13) and the sliding block (14) are fixedly connected, the other side of the sliding block (14) is fixedly connected with a connecting frame (15), the left side wall of the box cover (3) is fixedly connected with a connecting plate (16), the connecting frame (15) and the connecting plate (16) are fixedly connected; A ramp platform (17) is arranged on the right side of the box cover (3), and a plurality of evenly distributed rollers (18) are rotatably connected to the upper end surface of the ramp platform (17); The four corners of the upper end surface of the box cover (3) are fixedly connected with positioning rods (20), and the four corners of the lower end surface of the detection box (2) are provided with positioning holes matching the positioning rods (20); A motor (22) is installed on the upper end surface of the upper plate (10), and the output end of the motor (22) is fixedly connected to the screw rod (11).

2. A new energy vehicle battery air tightness detection device according to claim 1, characterized in that: Four buffer springs (19) distributed in a rectangular shape and located below the box cover (3) are fixedly connected to the upper end surface of the bottom plate (1).

3. A new energy vehicle battery air tightness detection device according to claim 1, characterized in that: A sealing ring (21) is provided at the periphery of the upper end surface of the box cover (3).

4. The new energy vehicle battery air tightness detection device according to claim 1, characterized in that: A control panel (23) is installed on the outer wall of the vertical plate (8), and the air pressure sensor (4), the air pump (6) and the motor (22) are all electrically connected to the control panel (23).

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