CN202794337U - Resistance testing device of polymer cell - Google Patents

Abstract

The resistance testing device of the polymer battery includes a detection table on which the power supply core is placed, a cylinder whose piston rod can be stretched along the height direction, a fixed plate located above the detection table and fixed on the piston rod of the cylinder, a bayonet fixed on the fixed plate, And two movable probe assemblies installed on the fixed plate. There is an inductor on the detection table, which is used to receive the signal of whether the electric core is in place, and transmit the signal to a controller. The output terminal of the controller Connect the control side of the air cylinder. The beneficial effect of the utility model is that the detection of the internal resistance between the tabs of the battery cell and the internal resistance between the tabs and the outer coating can be completed in one process, and only one person is required to operate, which saves labor costs and improves detection efficiency ;The measurement time can be accurately controlled; By piercing the edge of the outer film of the tested cell with a bayonet, it is possible to clearly identify whether the cell has been tested to avoid missed detection; the distance between the probes can be adjusted, which can be applied to different types of cells Core detection.

Description

Resistance testing device for polymer batteries

technical field

The utility model relates to a resistance testing device, in particular to a resistance testing device of a polymer electric core.

Background technique

During the processing of the existing soft-packed batteries, the detection of the internal resistance between the two tabs of the battery core and the internal resistance between the tabs and the outer coating is all done manually. The defect of this operation method is The reason is that two people are required to detect the internal resistance between the two pole ears and the internal resistance between the pole lug and the outer coating, the labor cost is high, and the detection efficiency is low. Moreover, during the detection, it is necessary for a person to touch the positive and negative poles with a test pen. After completing the operation, the manual operation cannot accurately determine the detection time. At the same time, when the manual detection is missed, it is impossible to clearly determine whether the product has passed the detection.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide a resistance testing device for polymer batteries, which can improve the detection efficiency, reduce labor costs, and precisely control the detection time to avoid missed detection.

In order to achieve the above object, the utility model adopts the following technical solutions:

The resistance testing device of the polymer battery includes a detection table on which the power supply core is placed, a cylinder whose piston rod can be stretched along the height direction, a fixed plate located above the detection table and fixed on the piston rod of the cylinder, a bayonet fixed on the fixed plate, And two movable probe assemblies installed on the fixed plate. There is an inductor on the detection table, which is used to receive the signal of whether the electric core is in place, and transmit the signal to a controller. The output terminal of the controller Connect the control side of the air cylinder.

A positioning block for limiting the position of the electric core is also fixed on the detection platform.

There are two long slots parallel to each other on the fixed plate. The probe assembly includes a fixed block, a fixed probe mounted on the fixed block, and two locking bolts. The two locking bolts of each probe assembly are respectively Lock the fixed block on the fixed plate through the two long slots.

A bayonet fixing seat is fixedly connected on the fixing plate, and a locking block is fixedly connected on the bayonet fixing seat, and the upper part of the bayonet is clamped between the bayonet fixing seat and the locking block.

The outside of the bayonet is also provided with an insulating sleeve.

The resistance testing device also includes a casing outside the casing, and the cylinder body of the air cylinder is fixed on the side wall of the casing.

The beneficial effects of the utility model are:

1. The detection of the internal resistance between the tabs of the battery cell and the internal resistance between the tabs and the outer coating can be completed in one process, and only one person is required to operate, which saves labor costs and improves detection efficiency;

2. The measurement time can be accurately controlled;

3. Puncture the edge of the outer film of the tested battery core with a bayonet to clearly identify whether the battery core has been tested to avoid missed testing;

4. The probe spacing can be adjusted, which can be applied to the detection of different types of batteries.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Among them: 1. Detection platform; 2. Cylinder; 3. Fixed plate; 31. Long slot; 4. Box body; 5. Probe assembly; 51. Probe; 52. Fixed block; 53. Locking bolt; 6. Inductor; 7, bayonet; 71, fixed seat; 72, locking block; 8, positioning block.

Detailed ways

Below, in conjunction with accompanying drawing and specific embodiment, the utility model is described further:

As shown in Figure 1, it is a resistance test device for a polymer battery cell of the present invention, which includes a detection platform 1, a cylinder 2, a fixed plate 3, a bayonet 7, and two probe assemblies 5, and on the detection platform 1 Embedded with a sensor 6, the signal sensing end of the sensor 6 is exposed on the surface of the detection table 1, which is used to receive the signal of whether the detected electric core on the detection table 1 is in place, and transmit the signal to a controller, The output end of the controller is connected to the control end of cylinder 2. The cylinder 2 is located above the detection platform 1, and the piston rod can be stretched along the height direction. The fixed plate 3 is located above the detection platform 1 and is separated from the detection platform 1 by a certain distance. The fixed plate 3 is fixed on the lower end of the piston rod of the cylinder 2. Driven by the cylinder 2, the fixed plate 3 can move along the height direction, the bayonet 7 is fixed on one side of the fixed plate 3, and the two probe assemblies 5 are movably installed on the fixed plate 3. The distance can be adjusted according to the detection needs. The connection mode between the probe assembly 5 and the fixed plate 3 is that each probe assembly 5 includes a fixed block 52, a fixed probe 51 installed on the fixed block 52, and two Locking bolts 53, the fixed plate 3 is provided with two long slots 31 parallel to each other, the two long slots 31 extend along the width direction of the resistance testing device, and the two locking bolts 53 on the probe assembly 5 are respectively pierced In the two long slots 31 and through the fixing block 52 , the fixing block 52 is locked and fixed on the fixing plate 3 . When the position of the probe assembly 5 needs to be adjusted, the nuts on the locking bolts 53 can be loosened earlier, and the two locking bolts 53 can be slid along the length direction of the two long slots 31, when the probe assembly 5 is adjusted to the predetermined position Finally, after tightening the nut on the locking bolt 53, the fixed block 52 is locked on the fixed plate 3, so, after adjusting the position of the probe assembly 5 along the length direction of the long groove 31, the two probes can be changed. The distance between components 5.

The tip of the bayonet 7 is positioned at its lower end, and its top is fixed on the fixed plate 3 by a fixed seat 71 and a locking block 72. Specifically, the fixed seat 71 is fixedly installed on the fixed plate 3, and the locking block 72 is fixed on the fixed plate 3. Fitted on one side of the fixed seat 71, the bayonet 7 is clamped between the fixed seat 71 and the locking block 72. Based on this structure, the bayonet 7 can be easily replaced and its position adjusted. In addition, the outside of the bayonet 7 is also covered with an insulating sleeve to prevent the metal bayonet 7 from being in contact with other components to conduct electricity.

In order to facilitate the positioning of the tested electric core, a positioning block 8 is also fixed on the upper surface of the detection table 1. The shape of the positioning block 8 can be designed according to the shape of the tested electric core, as long as it can be used to limit the detected electric core. The position of the battery cell on the detection platform 1 is enough.

The above-mentioned resistance testing device also includes a box body 4 with a cover on its outside, and the cylinder body of the air cylinder 2 is fixed on the side wall of the box body 4 .

Before performing the detection task, the above-mentioned resistance detection device needs to be verified. Specifically, the distance between the two probes 51 should be adjusted according to the distance between the tested battery tabs. After that, a standard The battery cell or the standard block is determined by the positioning block 8, and after confirming that the equipment can operate normally, the calibration is completed. When performing the detection task, place the detected battery cell on the detection table 1, use the positioning block 8 to determine the position of the detected battery cell, press the power switch, and the sensor 6 senses that the detected battery cell is in place. Send a signal to the controller, the controller starts the cylinder 2 after a delay of 1-3 seconds, the cylinder 2 drives the two probes 51 and the bayonet 7 downwards, and the two probes 51 contact the tabs of the detected cell, and the controller Control the contact time between the two probes 51 and the tabs of the tested battery. If there is a defective product, use a red light to give an alarm and stop the detection; at the same time, the bayonet 7 moves down and contacts the outer coating of the tested battery. The bayonet 7 will pierce the edge of the outer coating, and mark the outer coating of the battery core, so that it can be clearly identified that the battery core has been tested.

When testing batteries of different types, the distance between the two probes 51 can be readjusted.

For those skilled in the art, various other corresponding changes and modifications can be made according to the technical solutions and ideas described above, and all these changes and modifications should fall within the protection scope of the claims of the present invention .

Claims (6)

1. The resistance testing device of the polymer electric core is characterized in that it includes a detection table on which the power supply core is placed, a cylinder whose piston rod can be stretched along the height direction, a fixed plate positioned above the detection table and fixed on the piston rod of the cylinder, fixed on The bayonet on the fixed plate, and two movable probe assemblies installed on the fixed plate, the detection table is equipped with a sensor, which is used to receive the signal of whether the battery is in place, and transmit the signal to a controller , the output end of the controller is connected to the control end of the cylinder. 2 . The resistance testing device for polymer batteries according to claim 1 , wherein a positioning block for limiting the position of the batteries is fixed on the testing table. 3 . 3. The resistance testing device of polymer electric core as claimed in claim 1, is characterized in that, two long slots parallel to each other are provided on the fixed plate, and the probe assembly includes a fixed block, a fixed one mounted on the fixed block. The probe and the two locking bolts, the two locking bolts of each probe assembly respectively pass through the two long slots to lock the fixing block to the fixing plate. 4. The resistance testing device of polymer electric core as claimed in claim 1, it is characterized in that, a bayonet holder is fixedly connected on the fixed plate, a locking block is fixedly connected on the bayonet holder, and the upper part of the bayonet is clamped on Between the bayonet holder and the locking block. 5 . The resistance testing device of polymer cell according to claim 1 , wherein the bayonet is also covered with an insulating sleeve. 5 . 6 . The resistance testing device of a polymer battery cell according to claim 1 , wherein the resistance testing device further comprises a casing outside the casing, and the cylinder body of the air cylinder is fixed on the side wall of the casing. 7 .

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