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CN-224232684-U - Lining plate for protecting polar group side plate

CN224232684UCN 224232684 UCN224232684 UCN 224232684UCN-224232684-U

Abstract

A lining plate for protecting a polar group side plate comprises an extrusion-molded main body, wherein a left lining plate and a right lining plate are arranged on two sides of the main body, two saddle-shaped saddles are arranged between the left lining plate and the right lining plate and are respectively positioned at the edges of the main body to avoid a sedimentation tank in a battery tank, a central opening is arranged between the two saddle-shaped saddles on the main body, connecting sections are arranged at the positions, close to the left lining plate and the right lining plate, of two ends of the saddle-shaped saddles, a plurality of grooves which are convenient to bend to wrap the polar group are formed in the back face of the connecting sections, the thickness T of the main body is 1-2 mm, the thickness St of the saddle-shaped saddles is 80% +/-1% of the thickness T of the main body, the width K of the left lining plate/the right lining plate is 95% +/-1% of the width K of a polar plate, and anti-slip frames which are convenient to grasp the polar group manually are symmetrically arranged on the left lining plate and the right lining plate. The utility model has simple structure, thin thickness and low material cost, can effectively solve the problem of falling of the active substances of the side plates, and can be used for all storage battery products.

Inventors

  • LI DONGYAN
  • LIU FEI
  • LUO XIANGXIANG
  • MENG GANG
  • YUAN FANG
  • JIN XIANGYE

Assignees

  • 骆驼集团华中蓄电池有限公司

Dates

Publication Date
20260512
Application Date
20250429

Claims (6)

  1. 1. The lining plate for protecting the electrode group side plate is characterized by comprising an extrusion-molded main body, wherein a left lining plate and a right lining plate are arranged on two sides of the main body, two saddle members which are formed by compression are arranged between the left lining plate and the right lining plate, the two saddle members are respectively positioned at the edges of the main body to avoid a sedimentation tank in a battery tank, a central opening is arranged between the two saddle members on the main body, connecting sections are arranged at two ends of the saddle members, which are close to the left lining plate and the right lining plate, and a plurality of grooves which are convenient to bend to wrap the electrode group are formed in the back of the connecting sections; The thickness T of the main body is 1-2 mm, and the saddle thickness St is 80% +/-1% of the thickness T of the main body; The width K of the left lining plate/the right lining plate is 95% +/-1% of the width of the plate surface of the polar plate, and the saddle width Sw is 4% -6% of the width K of the left lining plate/the right lining plate.
  2. 2. The lining plate for protecting the polar group sideboard according to claim 1, wherein the left lining plate and the right lining plate are symmetrically provided with anti-slip frames which are convenient for manually grabbing the polar group.
  3. 3. The lining plate for protecting the polar group sideboard according to claim 2, wherein the distance H between the upper edge of the anti-slip frame and the upper edge of the left lining plate/the right lining plate is 20% -25% of the height G of the left lining plate/the right lining plate.
  4. 4. The lining plate for protecting a pole group side plate according to claim 1, wherein the groove width Cw of the groove is equal to the thickness T of the main body, and the groove depth Cd is 10% + -0.1% of the thickness T of the main body.
  5. 5. The lining plate for protecting polar group sideboards according to claim 1, wherein the height G of the left lining plate/the right lining plate is 93% + -1% of the height of the polar plate surface.
  6. 6. The lining plate for protecting polar group sideboards according to claim 2 or 3, wherein the length Fk of the anti-slip frame is 30% -45% of the width K of the left lining plate/the right lining plate, and the width Fg is 10% + -2% of the height G of the left lining plate/the right lining plate.

Description

Lining plate for protecting polar group side plate Technical Field The utility model relates to the technical field of storage battery production, in particular to a lining plate for protecting a polar group side plate. Background In the assembling process of the lead-acid storage battery, the assembling pressure of the electrode group (the polar plate and the baffle plate) is controlled to ensure that 103% -105% of the lead-acid storage battery is tightly assembled in the battery groove, so that the vibration resistance of the lead-acid storage battery is improved. At present, the thickness of the partition plate is properly reduced, and U-shaped lining plates with different thicknesses are added to meet the design requirement of tight assembly. The conventional lining board for the storage battery (shown in fig. 1 and 2) is formed by injection molding, and is U-shaped, the left lining board 7A and the right lining board 8A are grid inelastic lining boards which are convenient for cooling and demoulding in a cavity during injection molding, and the lining board lower part 12A near the saddle 9A end is thin, and the lining board upper part 11A far the saddle 9A end is thick in a wedge-shaped structure. The lining plate is designed to be thick at the upper part and thin at the lower part, and sulfuric acid cannot permeate into the side plate to participate in the reaction after being attached to the side plate, so that a plurality of small circular holes 10A with the aperture of 6mm are uniformly distributed on the lining plate, so that sulfuric acid can permeate and can participate in the electrochemical reaction with the active substances of the side plate. The inventor finds that most storage battery products are suitable for the existing lining plates, mechanical damage and potential short circuit risks of the side plates can be effectively solved, the lining plates can play a certain role in protecting the side plates due to vibration paste removal, but the lining plates are of mesh type design, paste removal caused by extrusion of active substances from meshes due to expansion and shrinkage cannot be protected, after the storage battery is continuously charged and discharged, active substances repeatedly expand/shrink to cause active substance particles to break and fall off, the active substances falling off from the side plates can be gradually accumulated and extruded from round small holes (as shown in figure 3), the later-stage capacity of the storage battery is affected, and the service life of the storage battery is reduced. Meanwhile, the grid type elastic lining plates are not available, after staff wears the labor protection gloves, more than 5kg of electrode group hands are not easy to grasp, so that the labor intensity of the staff is increased, and the production beat is reduced. Meanwhile, with the increase of product types in recent years, a lining plate cannot be added in the current storage battery products of about 1/3, and customers with high requirements on CCA starting values (-18 ℃ cold starting current values) have a large number of pole groups, and almost no gap exists between the pole groups and a battery groove. The thinnest PE baffle can only be 0.7mm thick, the thickness of the baffle cannot be further reduced, the thinnest PE baffle can only be 4mm under the condition that the quality stability of products is ensured, the pole groups need to be tightly assembled by 103% -105% in the battery groove, the gap between the pole groups and the battery groove cannot be added with the existing baffle, and the side plates of the products cannot be effectively protected. Disclosure of Invention The utility model aims to overcome the defects of the existing lining plates and provide a lining plate for protecting the electrode group side plates, which can effectively solve the problem of falling-off (paste removal) of the side plate active substances, is convenient for staff to manually grasp the electrode groups, reduces the labor intensity and improves the production beat. The technical scheme includes that the lining plate for protecting the electrode group side plate comprises an extrusion-molded main body, wherein a left lining plate and a right lining plate are arranged on two sides of the main body, two saddle-shaped saddles are arranged between the left lining plate and the right lining plate and are respectively positioned at the edges of the main body to avoid a sedimentation tank in a battery tank, a central opening is formed between the two saddle-shaped saddles on the main body, connecting sections are arranged at two ends of the saddle-shaped saddles close to the left lining plate and the right lining plate, and a plurality of grooves which are convenient to bend to wrap the electrode group are formed in the back of the connecting sections; The thickness T of the main body is 1-2 mm, and the saddle thickness St is 80% +/-1% of the thickness T of the main body; The width K