Battery pack sealing detection device

Abstract

The utility model provides a battery pack sealing detection device, which relates to the technical field of sealing detection and comprises a device bottom plate, an adjusting frame, a movable rolling shaft, a vacuum box, an air exhaust pipeline, a box body pressure gauge and an air inflation gun. The four corners of the device bottom plate are vertically connected with electric lifting rods, the tops of the four electric lifting rods are connected with a supporting fixing frame, an adjusting frame is arranged in the fixing frame, the middles of the inner sides of the four borders of the fixing frame are horizontally connected with adjusting rods, and the other ends of the adjusting rods are connected with the middles of sliding rods. The rear side of the fixing frame is provided with a vacuum box, and the upper portion of the vacuum box is connected with an air exhaust pipeline. The size of the device can be adjusted according to the size of a battery of a new energy automobile, the position of the battery can be better fixed, the device can be used for detecting battery packs of different sizes and specifications, the detection efficiency is improved, and the detection efficiency is improved. The problems that an existing device is low in sealing performance detection precision, low in safety performance and prone to damage are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing detection, and more specifically, relates to a battery pack sealing detection device. Background Art

[0002] With the development of science and technology and the needs of life, the sales of new energy vehicles continue to grow today. Since 2021, the sales of new energy vehicles have maintained a high growth rate of more than 30%. In the first half of 2021, sales reached 4.94 million vehicles. But at the same time, safety issues are always not to be ignored. The sealing of battery packs in new energy vehicles is the most critical safety issue. The sealing design plays an important role in ensuring the safe use of battery packs, preventing external environmental influences, improving safety and maintaining internal pressure balance. In recent years, some manufacturers have begun to try to use equipment with direct pressure testing methods to detect the sealing of battery packs. The accuracy is low and it is difficult to meet the standard requirements. Some existing equipment uses certain liquids to detect its sealing, which is not only unsafe but also easy to damage the battery pack. Utility Model Content

[0003] In order to solve the above technical problems, the present invention provides a battery pack sealing detection device to solve the problems of low sealing detection accuracy, low safety performance and easy damage of existing devices.

[0004] The utility model provides a battery pack sealing detection device, which is achieved by the following specific technical means:

[0005] A battery pack sealing detection device comprises: a device base plate, an adjustment frame, a movable roller, a vacuum box, an exhaust pipe, a box pressure gauge and an air charging gun; the left side of the device base plate is connected to a lifting motor, the four corners of the device base plate are vertically connected to electric lifting rods, the tops of the four electric lifting rods are connected to a supporting fixed frame, the left side of the fixed frame is connected to an adjustment motor, an adjustment frame is provided inside the fixed frame, the middle of the inner side of the four frames of the fixed frame is horizontally connected to an adjustment rod, the other end of the adjustment rod is connected to the middle position of the sliding rod, the device base plate is a groove structure, fifteen movable rollers are provided in the groove, the movable rollers can rotate freely, the rear side of the fixed frame is a vacuum box, the vacuum box is connected to an exhaust pipe above, a vacuum pump is provided on the exhaust pipe, the vacuum pump is connected to the vacuum motor, the left side of the device base plate is provided with a gas tank, and the gas tank is connected to the air charging gun by a pipe.

[0006] Furthermore, the adjustment frame is composed of four groups of "L"-shaped square frames and four circular slide bars, each circular slide bar connects two adjacent groups of square frames, and both ends of the circular slide bar extend into the square frames and can be telescopically slidable within the square frames.

[0007] Furthermore, an inlet baffle is provided on the front side of the vacuum box, and the back and four sides of the inlet baffle in contact with the vacuum box are wrapped with sealing rubber, and a handle is provided on the inlet baffle.

[0008] Furthermore, the inflation gun is provided with an inflation pressure gauge.

[0009] Furthermore, the vacuum box bottom plate and the device bottom plate are integrated, and the vacuum box bottom plate is provided with eight groups of movable rollers.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The utility model adjusts its own size according to the size of the new energy vehicle battery by setting an adjustment frame, an adjustment rod and a slide rod, which can better fix the battery position and enable the device to be used for battery pack detection of various sizes and specifications.

[0012] 2. The utility model provides a vacuum box and a box pressure gauge. Through the data displayed by the pressure gauge, the pressure changes inside the vacuum box can be observed more quickly and intuitively, and the sealing quality of the battery pack can be detected.

[0013] 3. The utility model provides a movable roller, which makes the movement of the battery pack on the device easy and convenient, saves time and effort, and reduces the work pressure of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 It is a structural schematic diagram of the regulating frame of the utility model.

[0016] Figure 3 This is a schematic diagram of the installation structure of the inlet baffle of the vacuum box of the present invention.

[0017] Figure 4 It is a schematic diagram of the structure of the movable roller of the bottom plate of the device of the utility model.

[0018] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0019] 1. Installation base plate; 101. Electric lifting rod; 102. Fixed frame; 103. Lifting motor;

[0020] 2. Adjustment frame; 201. Adjustment rod; 202. Slider; 203. Adjustment motor;

[0021] 3. Move the roller;

[0022] 4. Vacuum box; 401. Inlet baffle; 402. Sealing rubber;

[0023] 5. Exhaust pipe; 501. Vacuum pump; 502. Vacuum motor;

[0024] 6. Box pressure gauge;

[0025] 7. Inflating gun; 701. Inflating pressure gauge; 702. Gas tank. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] Example:

[0028] As attached Figure 1 To the attached Figure 4 As shown:

[0029] The utility model provides a battery pack sealing detection device, comprising: a device base plate 1, an adjustment frame 2, a movable roller 3, a vacuum box 4, an exhaust pipe 5, a box pressure gauge 6 and an air filling gun 7; the left side of the device base plate 1 is connected to a lifting motor 103, the four corners of the device base plate 1 are vertically connected to electric lifting rods 101, the tops of the four electric lifting rods 101 are connected to a supporting fixed frame 102, the left side of the fixed frame 102 is connected to an adjusting motor 203, an adjusting frame 2 is provided inside the fixed frame 102, the middle of the inner sides of the four frames of the fixed frame 102 are horizontally connected to an adjusting rod 201, the other end of the adjusting rod 201 is connected to the middle position of the sliding rod 202, the device base plate 1 is a groove structure, fifteen movable rollers 3 are provided in the groove, and the movable rollers 3 can rotate freely, the rear side of the fixed frame 102 is a vacuum box 4, the top of the vacuum box 4 is connected to an exhaust pipe 5, a vacuum pump 501 is provided on the exhaust pipe 5, the vacuum pump 501 is connected to the vacuum motor 502, and a gas tank 702 is provided on the left side of the device base plate 1, and the gas tank 702 is connected to the air filling gun 7 by a pipe.

[0030] Among them, such as Figure 2 As shown, the adjustment frame 2 is composed of four groups of "L"-shaped square frames and four circular slide bars 202. Each circular slide bar 202 connects two adjacent groups of square frames. Both ends of the circular slide bar 202 extend into the square frames and can be telescopically slid within the square frames. This structure can adjust its own size according to the size of the new energy vehicle battery, can better fix the position of the battery pack, and can also enable the device to be used for battery pack detection of various sizes and specifications.

[0031] Among them, such as Figure 3 As shown, the front side of the vacuum box 4 is provided with 401, and the back and four sides of the inlet baffle 401 in contact with the vacuum box 4 are wrapped with sealing rubber 402. A handle is provided on the inlet baffle 401, and the sealing rubber 402 can seal the gap around the inlet baffle 401 to ensure the sealing of the vacuum box 4 and ensure the accuracy of the reading of the box pressure gauge 6.

[0032] Among them, such as Figure 1As shown, the inflation gun 7 is provided with an inflation pressure gauge 701 to control the pressure in the battery pack without causing damage to the battery pack.

[0033] Among them, such as Figure 4 As shown, the bottom plate of the vacuum box 4 and the bottom plate 1 of the device are integrated, and the bottom plate of the vacuum box 4 is provided with eight sets of movable rollers 3, which makes the movement of the battery pack on the device easy and convenient, saves time and effort, and reduces the work pressure of the staff.

[0034] The specific usage and function of this embodiment are as follows:

[0035] In the present invention, the lifting motor 103 and the adjusting motor 203 are turned on, and the battery pack to be tested is placed on the device bottom plate 1 of the adjusting frame 2. The electric lifting rod 101, the adjusting rod 201, the adjusting frame 2 and the sliding rod 202 are driven by the motor to adjust the size and position according to the size of the battery pack, fix the battery pack, use the inflation gun 7 to inflate the inside of the battery pack, observe the inflation pressure gauge 701 on the inflation gun 7, and stop inflating when the specified value is reached. The adjusting frame 2 releases the battery pack, and the electric lifting rod 101 rises to the battery pack. Above the battery pack, open the inlet baffle 401 of the vacuum box 4. A movable roller 3 is provided on the bottom plate 1 of the device. Push the battery pack into the vacuum box 4, close the inlet baffle 401, turn on the vacuum motor 502, and extract the air in the vacuum box 4. When the vacuum box 4 is in a vacuum state, turn off the vacuum motor 502 and record the data on the box pressure gauge 6. Thereafter, record the data on the box pressure gauge 6 at regular intervals. Determine the sealing performance of the tested battery pack by the change in the pressure value. After the test, adjust the internal pressure of the battery pack to the original value.

[0036] Anything not described in detail in the present invention is well known to those skilled in the art.

Claims

1. A battery pack sealing detection device, comprising: The device comprises a bottom plate (1), an adjustment frame (2), a movable roller (3), a vacuum box (4), an exhaust pipe (5), a box pressure gauge (6) and an air charging gun (7); the device is characterized in that: the left side of the bottom plate (1) is connected to a lifting motor (103), the four corners of the bottom plate (1) are vertically connected to electric lifting rods (101), the tops of the four electric lifting rods (101) are connected to a supporting fixed frame (102), the left side of the fixed frame (102) is connected to an adjustment motor (203), an adjustment frame (2) is provided inside the fixed frame (102), and the inner middle of the four frames of the fixed frame (102) are horizontally connected to the adjusting motor (203). The adjusting rod (201) is connected to the other end of the adjusting rod (201) and the middle position of the sliding rod (202). The bottom plate (1) of the device is a groove structure. Fifteen movable rollers (3) are arranged in the groove. The movable rollers (3) can rotate freely. The rear side of the fixed frame (102) is a vacuum box (4). The top of the vacuum box (4) is connected to an exhaust pipe (5). A vacuum pump (501) is arranged on the exhaust pipe (5). The vacuum pump (501) is connected to a vacuum motor (502). The left side of the bottom plate (1) of the device is provided with a gas tank (702). The gas tank (702) is connected to an air charging gun (7) by a pipe.

2. The battery pack sealing detection device according to claim 1, wherein: The adjustment frame (2) is composed of four groups of "L"-shaped square frames and four circular slide bars (202). Each circular slide bar (202) connects two adjacent groups of square frames. Both ends of the circular slide bar (202) extend into the square frames and can be telescopically slidable within the square frames.

3. The battery pack sealing detection device according to claim 1, wherein: The front side of the vacuum box (4) is provided with an inlet baffle (401), the back of the inlet baffle (401) in contact with the vacuum box (4) and the four sides thereof (upper, lower, left, and right) are all wrapped with sealing rubber (402), and a handle is provided on the inlet baffle (401).

4. The battery pack sealing detection device according to claim 1, wherein: The inflation gun (7) is provided with an inflation pressure gauge (701).

5. The battery pack sealing detection device according to claim 1, wherein: The bottom plate of the vacuum box (4) and the bottom plate of the device (1) are integrated, and the bottom plate of the vacuum box (4) is provided with eight groups of movable rollers (3).

Images