A lead-acid battery case detection mechanism

Abstract

The application relates to the technical field of lead-acid battery shell detection devices, and provides a lead-acid battery shell detection mechanism, which comprises a detection seat, a detection assembly is arranged on the detection seat, the detection assembly comprises first probes and second probes, the first probes are electrically connected with a constant-current power supply, the first probes are electrified to welding points, the second probes abut against the welding points and are electrically connected with a voltmeter, and the voltage of the welding points is tested. Based on the mechanism, the welding points after wall penetration welding can be detected, and whether there is lead explosion or impurity residue can be judged.

Description

Technical Field

[0001] This application relates to the field of lead-acid battery casing testing devices, and more particularly to a lead-acid battery casing testing mechanism. Background Technology

[0002] In the production process of lead-acid batteries, lead sheets are placed on the separators of the battery casing, and these sheets undergo through-wall welding. However, some quality problems may occur during through-wall welding, such as lead spalling at the weld joint (i.e., cracks or incomplete welds) and residual impurities. These problems not only affect the battery's lifespan but may also lead to safety hazards such as short circuits and leakage. Therefore, after through-wall welding is completed, the weld joints need to be inspected to ensure that there is no lead spalling or residual impurities, thereby guaranteeing the overall quality and safety of the lead-acid battery.

[0003] Therefore, this application studies a lead-acid battery casing testing mechanism to test the weld points after through-wall welding to determine whether there is lead blasting or impurity residue. Utility Model Content

[0004] In order to inspect the weld points after through-wall welding and determine whether there is lead blasting or impurity residue, this application provides a lead-acid battery casing inspection mechanism.

[0005] This application provides a lead-acid battery casing testing mechanism, which adopts the following technical solution:

[0006] A lead-acid battery casing testing mechanism includes a testing base with a testing component. The testing component includes a first probe and a second probe. The first probe is electrically connected to a constant current power supply and supplies power to the solder joint. The second probe abuts against the solder joint and is electrically connected to a voltmeter to test the voltage of the solder joint.

[0007] By adopting the above technical solution, according to U=IR, when the voltage displayed by the voltmeter differs from the set voltage value, it is determined that the solder joint has lead blasting or impurities. Since the presence of lead blasting or impurities in the solder joint will lead to a decrease in conductivity, it will cause the voltage measurement result to deviate. This allows for accurate detection of welding defects, and even if a problem is found in the product, it is beneficial to improve the overall quality stability of lead-acid batteries.

[0008] Optionally, a set of the detection components includes two first probes and two second probes, with the first probes respectively disposed on both sides of the two second probes, and the second probes respectively abutting against the solder joints on both sides of the partition.

[0009] By adopting the above technical solution, it is possible to simultaneously detect the weld points on both sides of the partition, and to detect the weld points on both sides, thereby improving detection efficiency and the comprehensiveness of the detection.

[0010] Optionally, at least two sets of the detection components are arranged at intervals along the detection seat.

[0011] By adopting the above technical solution, it is possible to simultaneously detect the welding points of multiple separators inside the lead-acid battery casing, further improving the detection efficiency.

[0012] Optionally, the end of the first probe has a conical structure.

[0013] By adopting the above technical solution, the tip of the cone can always maintain good contact on irregular surfaces, which can better ensure current transmission and improve the reliability of detection.

[0014] Optionally, the ends of the second probe are tilted to both sides to form two contact surfaces.

[0015] By adopting the above technical solution, since the surface of the solder joint is uneven, the contact surface with the solder joint is increased at different positions by using the inclined contact surfaces on both sides and the connecting line between the contact surfaces, thereby improving the reliability of the detection.

[0016] Optionally, it also includes a first driving member, which drives the detection seat to move in a vertical direction, thereby driving the detection assembly to move closer to or away from the solder joint.

[0017] Optionally, it may also include a second driving member, which drives the detection seat to move horizontally, thereby driving the detection assembly closer to or away from the solder joint.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] The first probe applies a constant current to the solder joint, while the second probe measures the voltage, which is displayed on a voltmeter. According to U=IR, when the voltage displayed on the voltmeter differs from the set voltage value, it is determined that the solder joint has lead blasting or impurities. The presence of lead blasting or impurities in the solder joint will lead to a decrease in conductivity, resulting in a deviation in the voltage measurement result. This allows for accurate detection of welding defects, which can help improve the overall quality and stability of lead-acid batteries.

[0020] This allows for the simultaneous detection of weld points on both sides of the partition, and enables the detection of weld points on both sides, thereby improving detection efficiency and the comprehensiveness of the detection.

[0021] The tip of the cone can always make good contact on irregular surfaces, which can better ensure current transmission and improve the reliability of detection.

[0022] Because the surface of the solder joint is uneven, the contact surface at different positions of the solder joint is increased by using inclined contact surfaces on both sides and connecting lines between the contact surfaces to improve the reliability of the test. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the structure of the detection components in the lead-acid battery casing detection mechanism of this application embodiment;

[0024] Figure 2 This is a schematic diagram illustrating the structure of multiple sets of detection components in the lead-acid battery casing detection mechanism of this application embodiment;

[0025] Figure 3 This is a schematic diagram illustrating the end structures of the first probe and the second probe in the lead-acid battery casing detection mechanism of this application embodiment;

[0026] Figure 4 This is a cross-sectional schematic diagram of the lead-acid battery casing detection mechanism according to an embodiment of this application;

[0027] Figure 5 This is a schematic diagram of the lead-acid battery casing detection mechanism according to an embodiment of this application.

[0028] Reference numerals: 1. Detection seat; 2. Detection component; 21. First probe; 22. Second probe; 3. Abutment surface; 4. First driving component; 5. Second driving component. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] This application discloses a lead-acid battery casing testing mechanism. (Refer to...) Figure 1 The lead-acid battery casing testing mechanism includes a testing base 1, on which a testing component 2 is mounted. The testing component 2 includes a first probe 21 and a second probe 22. In this embodiment, the first probe 21 has a cylindrical structure, and the second probe 22 has a cuboid structure. The first probe 21 is electrically connected to a constant current power supply, and the first probe 21 energizes the solder joint. The first probe 21 is located on the side of the second probe 22 away from the separator, and energizes the solder joint through other conductive structures connected to the solder joint (see reference...). Figure 4 The second probe 22 is placed against the solder joint and electrically connected to a voltmeter to test the solder joint voltage. According to U=IR, when the voltage displayed by the voltmeter differs from the set voltage value, it is determined that the solder joint has lead oxide or impurities, enabling the quality inspection of the solder joint, timely detection of defective products, and improvement of product quality stability.

[0031] In some embodiments, a set of detection components 2 includes two first probes 21 and two second probes 22. The first probes 21 are respectively disposed on both sides of the two second probes 22, and the second probes 22 respectively abut against the solder joints on both sides of the partition. This enables simultaneous detection of the solder joints on both sides of the partition, improving detection efficiency.

[0032] Since the first probe 21 and the second probe 22 have a positional relationship, the first probe 21 and the second probe 22 need to be swapped during the inspection of the solder joints on both sides of the partition. Therefore, in other embodiments, only one first probe 21 and one second probe 22 can be set. Only a rotating device is needed to swap the positions of the first probe 21 and the second probe 22 to inspect the solder joints on the other side.

[0033] Reference Figure 2 In some embodiments, at least two sets of detection components 2 are arranged at intervals along the detection seat 1. The number of detection components 2 corresponds to the number of separators, enabling simultaneous detection of solder joints inside the lead-acid battery casing, thereby improving detection efficiency.

[0034] In this embodiment, adjacent detection components 2 are staggered and correspond to the welding points of the partition, meaning that adjacent detection components 2 are not on the same horizontal plane.

[0035] Reference Figure 3 and Figure 4 In some embodiments, the end of the first probe 21 is a conical structure. The conical structure enables better contact on uneven surfaces, thereby improving the stability of current transmission and thus improving the reliability of detection.

[0036] In some embodiments, the ends of the second probe 22 are inclined to both sides to form two contact surfaces 3. The height of the contact surface 3 facing the partition is higher than the height of the side away from the partition, the height being based on the distance between the device and the ground when it is placed on the ground. Due to the unevenness of the solder joint, the contact surfaces 3 allow for better contact at different locations of the solder joint, thereby improving the accuracy of voltage measurement.

[0037] Reference Figure 5 In some embodiments, a first driving member 4 is also included, which drives the detection seat 1 to move vertically, causing the detection component 2 to move closer to or away from the solder joint. In this embodiment, the first driving member 4 is a cylinder, which allows adjustment of the position of the detection component 2 and the contact position with the solder joint, thereby improving the accuracy of the detection.

[0038] In some embodiments, a second driving member 5 is further included, which drives the detection seat 1 to move horizontally, thereby driving the detection component 2 closer to or away from the solder joint. In this embodiment, the second driving member 5 is a lead screw, which rotates to drive the detection seat 1 to move horizontally, adjusting the position between the detection component 2 and the solder joint.

[0039] The implementation principle of a lead-acid battery casing testing mechanism in this application embodiment is as follows: a constant current is passed through the first probe 21 to the solder joint, and the voltage is tested by the second probe 22 and displayed by a voltmeter. According to U=IR, when the voltage displayed by the voltmeter differs from the set voltage value, it is determined that the solder joint has lead blasting or impurities. Since the presence of lead blasting or impurities in the solder joint will lead to a decrease in conductivity, it will cause a deviation in the voltage measurement result, thereby accurately detecting welding defects and even discovering whether there are problems with the product, which is conducive to improving the overall quality stability of lead-acid batteries.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lead-acid battery casing testing mechanism, characterized in that: The device includes a testing base, on which a testing component is provided. The testing component includes a first probe and a second probe. The first probe is electrically connected to a constant current power supply and supplies power to the solder joint. The second probe is in contact with the solder joint and electrically connected to a voltmeter to test the voltage of the solder joint.

2. The lead-acid battery casing testing mechanism according to claim 1, characterized in that: A set of the detection components includes two first probes and two second probes, with the first probes respectively disposed on both sides of the two second probes, and the second probes respectively abutting against the solder joints on both sides of the partition.

3. The lead-acid battery casing testing mechanism according to claim 2, characterized in that: The detection components are arranged in at least two sets at intervals along the detection seat.

4. The lead-acid battery casing testing mechanism according to claim 1, characterized in that: The end of the first probe has a conical structure.

5. The lead-acid battery casing testing mechanism according to claim 1, characterized in that: The ends of the second probe are tilted to both sides to form two contact surfaces.

6. The lead-acid battery casing testing mechanism according to claim 1, characterized in that: It also includes a first driving member, which drives the detection seat to move in a vertical direction, thereby driving the detection assembly to move closer to or away from the solder joint.

7. The lead-acid battery casing testing mechanism according to claim 1, characterized in that: It also includes a second driving member, which drives the detection seat to move horizontally, thereby driving the detection assembly closer to or away from the solder joint.

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