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CN-116259867-B - Monitoring method and monitoring device for testing high-temperature service life of lead-acid storage battery

CN116259867BCN 116259867 BCN116259867 BCN 116259867BCN-116259867-B

Abstract

The invention discloses a monitoring method and a monitoring device for testing the high-temperature service life of a lead-acid storage battery, which are used for completing the height measurement and the high-temperature service life estimation of a positive grid by using the monitoring device, facilitating the early identification of the high-temperature service life failure risk of the lead-acid storage battery by a user, and avoiding the problem that the vehicle cannot be started due to the failure of the storage battery when the whole vehicle is used. The monitoring device comprises an ultrasonic signal processor, an ultrasonic output signal line, an ultrasonic output probe, an ultrasonic receiving signal line, a fixing ring, a fixing buckle and the like. The invention can finish the identification of whether the positive plate grows up to exceed the partition plate, and judge whether the high-temperature service life of the lead-acid storage battery has risks.

Inventors

  • ZHANG LIN
  • LIU CHANGLAI
  • XIA SHIZHONG
  • GAO GUOXING
  • LU SONG
  • DENG GUOQIANG

Assignees

  • 骆驼集团襄阳蓄电池有限公司
  • 骆驼集团蓄电池研究院有限公司

Dates

Publication Date
20260505
Application Date
20220801

Claims (6)

  1. 1. A monitoring device for testing the high-temperature service life of a lead-acid storage battery is characterized by comprising an ultrasonic signal processor (1), an ultrasonic output signal wire (2), an ultrasonic output probe (3), an ultrasonic receiving probe, an ultrasonic receiving signal wire (5), a fixing ring (6), a fixing ring (7) and a fixing buckle (8), wherein the ultrasonic output probe (3) and the ultrasonic receiving probe are symmetrical in position and are respectively fixed on the fixing ring (7), the fixing ring (7) is used for fixing the ultrasonic output probe (3) on one side on a groove body on the negative electrode side of the storage battery, the fixing ring (7) is used for fixing the ultrasonic receiving probe on the other side on the groove body on the positive electrode side of the storage battery, the fixing buckle (8) is hung on a flying ear of the groove body, the ultrasonic output probe (3), the ultrasonic receiving probe and the fixing ring are concentric with the fixing ring, the ultrasonic receiving probe transmits an ultrasonic signal A to the ultrasonic output probe (3) through the ultrasonic output signal wire (2), the ultrasonic receiving probe receives an ultrasonic signal B on the other side of the lead-acid storage battery, returns the ultrasonic signal B to the ultrasonic signal processor (1) through the ultrasonic receiving signal wire (5), a structural diagram is formed by the fixing ring, the position of the fixing ring is determined to be adjacent to the position of a structural diagram of the battery (7) to be deformed, a structural diagram is measured, and the deformation is measured before the deformation is measured, and the position is determined according to a method is determined, and obtaining a long track line m of the positive grid according to the deformed structure diagram, determining the vertical distance L between the upper surface of a separator (11) of the battery to be detected and the outer side of the bottom of a negative pole (12) of the battery to be detected according to the structure diagram before deformation, drawing a circle C1 by taking the length of the vertical distance L as the radius and taking the outer side point A of the bottom of the negative pole (12) and the upper surface of the separator (11) as two tangent points of the circle, wherein the contact tangent point position of the circle C1 and the negative pole (12) is a short-circuit point, determining the central position of an ultrasonic sensor probe outside a shell of the battery to be detected according to the coordinates of the center of the circle C1, drawing a circle C2 by combining the radius r of the ultrasonic sensor probe, and drawing the circle C2 as the cross section of an inner ring of a fixing ring (7) for fixing the ultrasonic sensor probe on the fixing ring (6).
  2. 2. The monitoring device for testing the high-temperature service life of the lead-acid storage battery according to claim 1, wherein the fixing ring (6), the fixing ring (7) and the fixing buckle (8) are made of acid-proof materials.
  3. 3. The monitoring method for testing the high-temperature service life of the lead-acid storage battery, which adopts the device as claimed in claim 1, is characterized by comprising the following steps: 1) Determining the size of a fixing ring (6) according to the outline size of the battery to be detected; 2) Determining the size of a fixing buckle (8) and the fixing position of a fixing ring (6) outside a battery shell to be detected according to the position M, and arranging a fixing ring (7) on the fixing ring (6); 3) Monitoring When the ultrasonic detection method is adopted for monitoring, the position N of a circular fixed ring (7) close to one side of the positive pole is determined according to the position M, an ultrasonic output probe (3) on one side is fixed on a groove body on the negative side of a storage battery by the fixed ring (7), an ultrasonic receiving probe on the other side is fixed on the groove body on the positive side of the storage battery by the fixed ring (7), a fixing buckle (8) is hung at a flying ear of the groove body, the ultrasonic output probe (3), the ultrasonic receiving probe and the fixed ring are concentric, an ultrasonic signal processor (1) transmits an ultrasonic signal A to the ultrasonic output probe (3) through an ultrasonic output signal wire (2), the ultrasonic receiving probe receives an ultrasonic signal B on the other side of the storage battery, and the ultrasonic signal is returned to the ultrasonic signal processor (1) through an ultrasonic receiving signal wire (5) for diagnosis of ultrasonic signal energy loss.
  4. 4. The monitoring method for testing the high-temperature life of the lead-acid storage battery according to claim 3, further comprising the steps of determining a check area outside a battery shell to be detected according to coordinates of a track line m of the growth of the positive grid, moving an ultrasonic sensor probe along the check area, observing an ultrasonic waveform displayed in an ultrasonic signal processor (1), and judging the deformation degree of the positive grid according to scattering attenuation of the ultrasonic waveform, wherein when the ultrasonic sensor probe is placed at a position of a circle C2, the scattering attenuation of the ultrasonic wave is larger than that of other positions on the track line m of the growth of the positive grid.
  5. 5. The method for monitoring the high-temperature life test of the lead-acid storage battery according to claim 3, wherein the ultrasonic frequency of the ultrasonic output probe is 0.25-25 MHz.
  6. 6. A monitoring method for testing the high-temperature service life of a lead-acid storage battery is characterized in that a monitoring device adopted by the monitoring method comprises an ultrasonic signal processor (1), an ultrasonic sensor probe, a fixing ring (6), a fixing ring (7) and a fixing buckle (8), wherein the fixing ring (7) is used for fixing the ultrasonic sensor probe on a groove body on the positive/negative electrode side of the storage battery, the fixing buckle (8) is hung at a flying lug of the groove body, and the monitoring method comprises the following steps: 1) Determining the size of a fixing ring (6) according to the outline size of the battery to be detected; 2) Drawing a structure diagram before deformation and a structure diagram after deformation of a battery to be detected, obtaining a track line M for the growth of a positive grid according to the structure diagram after deformation, determining the vertical distance L between the upper surface of a baffle plate (11) of the battery to be detected and the outer side of the bottom of the negative pole (12) of the battery to be detected according to the structure diagram before deformation, drawing a circle C1 by taking the length of the vertical distance L as a radius and taking the outer side point A of the bottom of the negative pole (12) and the upper surface of the baffle plate (11) as two tangent points of the circle, determining the contact point position of the circle C1 and the negative pole (12) as a short-circuit point, determining the central position of an ultrasonic sensor probe outside a shell of the battery to be detected according to the coordinates of the center of the circle C1, drawing a circle C2 by combining the radius r of the ultrasonic sensor probe, and the circle C2 being the section of an inner ring of the circle fixing ring (7) for fixing the ultrasonic sensor probe on the fixing ring (6); 3) Determining the size of a fixing buckle (8) and the fixing position of a fixing ring (6) outside a battery shell to be detected according to the position M, and arranging a circular fixing ring (7) on the fixing ring (6); 4) Monitoring When monitoring by adopting a pulse reflection ultrasonic detection method, an ultrasonic sensor probe is placed at a fixed ring (7), and an ultrasonic signal processor (1) is connected with the ultrasonic sensor probe through a signal wire to diagnose the energy loss of an ultrasonic signal; and (3) checking, namely determining a checking area outside the battery shell to be detected according to the coordinates of a track line m of the growing positive grid, moving an ultrasonic sensor probe along the checking area, observing an ultrasonic waveform displayed in an ultrasonic signal processor (1), and judging the deformation degree of the positive grid according to the scattering attenuation condition of the ultrasonic waveform, wherein when the ultrasonic sensor probe is placed at the position of a circle C2, the scattering attenuation of the ultrasonic wave is larger than that of other positions on the track line m of the growing positive grid.

Description

Monitoring method and monitoring device for testing high-temperature service life of lead-acid storage battery Technical Field The invention belongs to the technical field of lead-acid storage battery testing, and particularly relates to a monitoring method and a monitoring device for testing the high-temperature service life of a lead-acid storage battery. Background The battery works in a high-temperature environment, the service life of the battery can be accelerated and shortened along with the continuous rising of the temperature, and the internal grid can be rapidly corroded and aged in the high-temperature environment, so that the service life of the battery is terminated in advance. The high-temperature service life test of the lead-acid storage battery is to simulate the corrosion resistance of a positive plate in the battery under the high-temperature environment in an engine compartment. After the lead-acid storage battery is subjected to high-temperature service life test, the existing method is to judge the internal pole group and pole plate growth state of the battery through anatomical analysis of the battery. Under the condition that the battery anatomy analysis is not carried out, the internal state of the battery cannot be accurately judged, when the battery is used in the later service life, the sudden incapability of meeting the starting and power supply capacity of the whole vehicle easily occurs, and the vehicle cannot be started normally or the later customer use experience is poor. Disclosure of Invention Aiming at the problem of battery failure caused by the growth of a positive grid of a lead-acid storage battery in the background technology, the invention aims to provide the monitoring method for the high-temperature service life test of the lead-acid storage battery. Another object of the present invention is to provide a monitoring device. The invention relates to a monitoring method for testing the high-temperature service life of a lead-acid storage battery, which is characterized by comprising the following steps: 1) Determining the size of the fixing ring according to the outline size of the battery to be detected; 2) Drawing a structure diagram before deformation and a structure diagram after deformation of a battery to be detected, obtaining a track line M for growing a positive grid according to the structure diagram after deformation, determining the vertical distance L between the upper surface of a baffle plate of the battery to be detected and the outer side of the bottom of the negative pole of the battery to be detected according to the structure diagram before deformation, taking the length of the vertical distance L as a radius, taking the outer side point A of the bottom of the negative pole and the upper surface of the baffle plate as two tangent points of the circle, drawing a circle C1, wherein the contact tangent point position of the circle C1 and the negative pole is a short circuit point, determining the central position of an ultrasonic sensor probe outside a shell of the battery to be detected according to the coordinates of the center of the circle C1, and drawing a circle C2 according to the radius r of the ultrasonic sensor probe, wherein the circle C2 is the cross section of an inner ring of a circle fixing ring for fixing the ultrasonic sensor probe on the fixing ring; 3) Determining the size of a fixing buckle according to the position M, determining the fixing position of a fixing ring outside a battery shell to be detected, and arranging a circular fixing ring on the fixing ring; 4) Monitoring When the ultrasonic detection method is adopted for monitoring, the position N of the circular fixed ring close to one side of the positive pole is determined according to the position M, the ultrasonic output probe on one side of the fixed ring is fixed on the groove body on the negative side of the storage battery, the ultrasonic receiving probe on the other side of the fixed ring is fixed on the groove body on the positive side of the storage battery and fixedly buckled at the flying ear of the groove body, the ultrasonic output probe, the ultrasonic receiving probe and the fixed ring are concentric, the ultrasonic signal processor transmits an ultrasonic signal A to the ultrasonic output probe through an ultrasonic output signal wire, the ultrasonic receiving probe receives an ultrasonic signal B on the other side of the lead-acid storage battery, and the signal returns to the ultrasonic signal processor through the ultrasonic receiving signal wire to carry out ultrasonic signal energy loss diagnosis. The method comprises the steps of determining a verification area outside a to-be-detected battery shell according to coordinates of a long and large track line m of a positive grid, moving an ultrasonic sensor probe along the verification area, observing ultrasonic waveforms displayed in an ultrasonic signal processor, and judging the deformation degree o