CN212207040U - Lead belt and grid corrosion resistance test tool - Google Patents
Lead belt and grid corrosion resistance test tool Download PDFInfo
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- CN212207040U CN212207040U CN202020508969.0U CN202020508969U CN212207040U CN 212207040 U CN212207040 U CN 212207040U CN 202020508969 U CN202020508969 U CN 202020508969U CN 212207040 U CN212207040 U CN 212207040U
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Abstract
A lead belt and grid corrosion resistance test tool comprises an electric tank and a plurality of wiring mechanisms; the upper cover covers the upper side of the electric cell, a groove is formed in the electric cell, n slot groups are arranged in the groove, n is an odd number larger than or equal to 3, negative lead belts or grids and positive lead belts or grids are alternately distributed in the slot groups, each positive lead belt or grid is positioned between two negative lead belts or grids after being inserted, and each slot group is composed of two opposite grooves symmetrically arranged in the groove; the three wiring mechanisms correspond to the lugs of a positive lead belt or a grid/negative lead belt or a grid one by one, each wiring mechanism comprises a copper wiring pile, a step-down groove for passing the lug is formed in the wiring pile, a plurality of uniformly distributed first internal thread holes are formed in the wiring pile on one side of the step-down groove, and a press-fit screw with the top end abutting against the lug and pressing the lug on the side wall of the step-down groove of the wiring pile is arranged in each first internal thread hole; the rear side of the wiring pile is also provided with a small hole for installing a wire; no need of welding wires and convenient installation.
Description
Technical Field
The utility model belongs to the technical field of the battery manufacture, particularly, relate to a plumbous area and grid corrosion resistance test fixture device.
Background
The corrosion resistance of a lead belt or a grid of a lead-acid storage battery needs to be verified and judged before new lead belt production equipment or a new process is put into use, and the existing method for verifying the corrosion resistance of the lead belt or the grid generally adopts the steps of manufacturing the battery to test the high-temperature service life or the water loss performance, dissecting and analyzing the battery after the battery performance test is finished, and judging by combining the dissecting and analyzing result of the battery and the testing process. Because the production, manufacturing and testing periods of the battery are long, the manufacturing process is relatively complex, and factors causing the failure of the high-temperature service life or the water loss performance of the battery are more, the corrosion resistance of a lead belt or a grid is difficult to quickly and accurately judge in a short time, so that the development progress of new equipment or a new process is delayed.
At present, another method for verifying the corrosion resistance of a lead belt or a grid is to manufacture a lead belt or grid corrosion resistance sample, connect the sample into a test loop and perform constant-voltage or constant-current corrosion charging in a constant-temperature water bath, take out the positive lead belt or grid after the charging program is tested according to a specified time, clean residual electrolyte on the surface of the positive lead belt or grid and remove a surface corrosion layer, calculate the weight loss proportion of the lead belt or grid sample after corrosion, and accordingly judge the corrosion resistance of the lead belt or grid. The test method can not only rapidly prepare the sample piece, but also obtain the corrosion resistance of the lead belt or the grid in a short time, and is less interfered by other materials in the test process, but also has the defects. Because there is not dedicated corrosion resistant test fixture, the current mode of using manual welding leads to defects such as sample and lead wire department rosin joint, false solder easily, and the sample does not have fixed support frame and leads to the welding department to connect insecurely very easily in the electrobath, probably causes the welding point to drop or the risk of contact failure during the test. Because the sample piece loses water during charging, deionized water is required to be added into the single-grid electric cell regularly to prevent the too large change of the sulfuric acid concentration, and because the lead belt or the grid sample is immersed in acid liquid in the electric cell, the liquid level height of the acid liquid can not be observed visually during water adding, so that the water adding amount is difficult to control accurately, the large change of the sulfuric acid concentration in the single-grid electric cell can be caused, and the accuracy and the reliability of the test result of the lead belt or the grid corrosion-resistant sample piece are influenced.
Disclosure of Invention
An object of the utility model is to overcome the above-mentioned not enough of prior art and provide a lead tape and grid corrosion resistance test fixture, need not welding wire, simple to operate, this connected mode's connection can be more firm simultaneously, can solve the problem that the welding point drops or bad contact waits to weld not firm during sample test.
The technical solution is as follows: the utility model provides a lead tape and grid corrosion resistant test fixture, includes:
the electrolytic cell comprises an electrolytic cell, wherein a groove capable of storing sulfuric acid solution is formed in the electrolytic cell, n inserting groove groups for inserting a negative lead belt or grid and a positive lead belt or grid are formed in the groove, n is an odd number larger than or equal to 3, the negative lead belt or grid and the positive lead belt or grid are alternately distributed in the inserting groove groups, the inserting amount of the negative lead belt or grid is more than that of the positive lead belt or grid, each positive lead belt or grid is positioned between the two negative lead belts or grids after being inserted, a partition plate is further sleeved outside the negative lead belt or grid, the partition plate protrudes out of an upper frame of the negative lead belt or grid, each inserting groove group is composed of two opposite grooves symmetrically arranged in the groove, the width of each groove is larger than the total thickness of the positive lead belt or grid/negative lead belt or grid after being sleeved with the partition plate, and the depth of each groove is larger than the height of the;
the wiring mechanisms are positioned on the upper side wall of the electric cell and correspond to the lugs of the positive lead belt or the grid/negative lead belt or the grid one by one, each wiring mechanism comprises a copper wiring pile, a stepping groove for passing the lug is arranged on the wiring pile, the width of the stepping groove is larger than the thickness of the positive lead belt or the grid/negative lead belt or the grid, the length of the stepping groove is larger than the width 1/2 of the plate surface of the positive lead belt or the grid/negative lead belt or the grid, a plurality of uniformly distributed internal thread holes I are formed in the wiring pile on one side of the stepping groove, and a press screw with the top end abutting against the lug to press the lug on the side wall of the stepping groove of the wiring pile is arranged in each internal thread hole I; the rear side of the wiring pile is also provided with a small hole for installing a wire, the side wall of the wiring pile is also provided with a second internal thread hole communicated with the small hole, and a set screw for fixing the wire is arranged in the second internal thread hole;
the upper cover, the upper cover lid fits the cell upside, and the upper cover downside is equipped with the recess of stepping down that is used for stepping down three wiring mechanism.
The groove is internally provided with 3 slot groups, the slot groups at two sides are respectively inserted with a negative lead belt or a grid, and the slot group at the middle is inserted with a positive lead belt or a grid.
And the pressing screw is also provided with a nut for locking the pressing screw and the wiring pile.
The electrobath is made of a sealing acrylic or organic glass transparent material.
The cover plate is matched with the electric tank in size.
The width of the groove is 1-3mm larger than the thickness of the positive lead belt or the grid/negative lead belt or the grid after being sleeved with the separator, and the depth of the groove is 10-50mm larger than the height of the separator.
The width of the abdicating groove is 1-2mm larger than the thickness of the positive lead belt or the slab lattice/the negative lead belt or the slab lattice; the length of the abdicating groove is 10-20mm larger than the plate surface width 1/2 of the positive lead belt or the grid/negative lead belt or the grid.
The positive lead belt or grid and the negative lead belt or grid have rectangular lugs, and the lug can be positioned at any position of the side edge, the middle part or the top of the upper end part of the positive lead belt or grid and the negative lead belt or grid.
The separator is of an integrally formed bag-shaped structure with four sealed side surfaces and bottom surfaces and an opening on the top surface, the thickness of an opening end gap is 0.5-1.0mm larger than that of a lead belt or a grid, the height of the separator is 8-20mm higher than that of an upper frame of a negative lead belt or a grid and an anode lead belt or a grid, the height of the separator is 10-50mm lower than the top surface of a cell body of the cell, and the thickness of the separator is 0.5-1.5 mm.
The separator material mainly comprises PE, PVC, PP and the like.
Compared with the prior art, the utility model provides a pair of lead belt and grid corrosion resistance test fixture, its beneficial effect lies in: through increasing the slot in the cell body inside of electric tank and can playing the location supporting role to plumbous area or grid, adopt the pressfitting formula wiring to realize the pluggable formula of plumbous area or grid and use in sample board ear corresponding position, need not welding wire, simple to operate, this connected mode's connection can be more firm simultaneously, can solve the problem that the welding point drops or welding such as bad contact is not firm during the sample test. The electric cell is made into a sealed transparent material, so that the liquid level height of the internal acid liquid can be visually observed from the outside of the electric cell, the accurate control of the water adding amount is realized, and the uniform density of the acid liquid in the electric cell is ensured, thereby improving the accuracy and reliability of the test result of the lead belt or grid corrosion-resistant sample.
The utility model discloses mainly used lead tape or grid corrosion resistant sample spare test, insert test loop and carry out constant voltage or constant current corrosion in the constant temperature water bath with the sample and charge, charge according to the regulation time, take out anodal lead tape or grid after the test, wash the residual electrolyte on anodal lead tape or grid surface and get rid of the surface corrosion layer, calculate the weightlessness proportion of lead tape or grid sample after the corruption, thereby make the judgement to lead tape or grid corrosion resistance, this kind of test method not only can be quick prepares out the sample spare, and can obtain the corrosion resistance of lead tape or grid in short time.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a middle cell of the present invention;
FIG. 3 is a schematic structural view of a lead belt or grid and a partition plate according to the present invention;
in the figure: 1-electric tank; 2-wiring piles; 3-pressing screws; 4-fixing the nut; 5-a wire; 6-a separator; 7-negative lead tape or grid; 8-positive lead belt or grid.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, or the orientation or position relationship that a person skilled in the art usually understands, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
The following describes in detail embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses in fig. 1, 2 include electric tank 1, apron, wiring mechanism.
The inside recess that is equipped with of electricity cell 1 for store sulphuric acid liquid, lead strip or grid sample, electricity cell 1 material is sealed ya keli or organic glass transparent material, can observe inside acidizing liquid level height very directly perceivedly from the electricity cell outside, realizes the accurate control of the volume of adding water, guarantees that the acidizing fluid density is even in the electricity cell. Three slot groups are arranged in the groove, a negative lead belt or a grid 7 is placed in the slot groups at two sides, and a positive lead belt or a grid 8 is placed in the slot group in the middle; the grooves can be odd slot groups larger than 3, a negative lead belt or a grid 7 inserted in each slot group is always more than a positive lead belt or a grid 8, each positive lead belt or grid 8 is positioned between two negative lead belts or grids 7 after being inserted, the design avoids uneven corrosion of two surfaces of the positive lead belt or grid due to uneven discharge of the two surfaces, a partition plate 6 is further sleeved outside each negative lead belt or grid 7, the partition plate 6 protrudes out of an upper frame of each negative lead belt or grid 7, each slot group is composed of grooves symmetrically arranged on two opposite surfaces in each groove, the width of each groove is 1-3mm larger than the total thickness of the positive lead belt or grid 8/negative lead belt or grid 7 after being sleeved with the partition plate 6, and the depth of each groove is 10-50mm larger than the height of the partition plate 6, so that acid liquor is prevented from overflowing; the apron is located the top of electrobath 1, and the length of apron, wide size coincide with electrobath 1 for cover the recess of electrobath 1, can prevent that the foreign matter in the test procedure from falling into, the upper cover downside is equipped with the recess of stepping down that is used for stepping down three wiring mechanism.
The wiring mechanism comprises wiring piles 2, press screws 3, fixing nuts 4 and wires 5, the wiring mechanisms correspond to lugs of a positive lead belt or a grid 8/negative lead belt or a grid 7 one by one, the wiring piles 2 are fixed above a groove body of an electric groove 1 and made of copper materials, abdicating grooves for passing the lugs are formed in the wiring piles 2, the abdicating groove width is slightly larger than the thickness of the lead belt or the grid by 1-2mm, the abdicating groove length is 10-20mm larger than the plate surface width 1/2 of the positive lead belt or the grid 8/negative lead belt or the grid 7, the testing requirements of the lugs at different positions can be met, a plurality of uniformly distributed first internal thread holes are formed in the wiring piles 2 on one side of the abdicating grooves, the press screws 3 are arranged in the first internal thread holes, the press screws 3 penetrate through the screw holes of the wiring piles 2 and the nuts 4, and pass through the positive lead belt or the grid 8, The plate lugs of the negative lead belt or the plate grid 7 are pressed to be in contact with the wiring pile 2, the pressing screws 3 and the wiring pile 2 are locked by nuts 4, and the uniformly distributed internal thread holes I can adapt to the positioning of the lugs at different positions and are fixed by the pressing screws 3; the rear side of the wiring pile 2 is also provided with a small hole for installing a wire 5, the side wall of the wiring pile 2 is also provided with a second internal thread hole communicated with the small hole, a stop screw for fixing the wire 5 is arranged in the second internal thread hole, and the wire 5 penetrates into the small hole in the rear side of the wiring pile 2 and is fixed by the stop screw from the side.
In fig. 3, the separator comprises a positive lead belt or grid 8, two negative lead belts or grids 7 and two separators 6.
The width of the plate lug is more than 10mm, the lug of the positive lead belt or the plate grid 8 and the lug of the negative lead belt or the plate grid 7 are rectangular, the lug can be positioned at any position of the side edge, the middle part or the top of the upper end part of the positive lead belt or the plate grid 8 and the negative lead belt or the plate grid 7, and the width of the plate lug has certain mechanical strength. The negative lead belt or the grid 7 is respectively sleeved with the partition plate 6 and is placed into slot groups at two sides of the electric cell body, the positive lead belt or the grid 8 is directly placed into a middle slot group of the electric cell body, the positive lead belt or the negative lead belt or the grid lug respectively penetrates through the middle position of the abdicating groove of the three wiring piles, and the height position of the lug is equal to the top surface of the wiring pile.
The separator 6 is mainly made of PE, PVC, PP and the like, the separator (6) is of an integrally formed bag-shaped structure with four sealed sides and bottom surfaces and an open top surface, the gap of the open end is 0.5-1.0mm larger than the thickness of a lead belt or a grid, the height of the separator 6 is slightly 8-20mm higher than the upper frame of the lead belt or the grid, meanwhile, the height of the separator 6 is slightly 10-50mm lower than the top surface of the cell body of the cell 1, and the thickness of the separator is about 1mm, so that the smooth passing of ions in electrolyte is mainly ensured by using the separator, and the migration and diffusion of harmful substances to electrodes are prevented.
The lead belt corrosion-resistant sample piece is manufactured by shearing positive and negative lead belts with proper sizes or directly taking a grid with proper sizes, respectively sheathing the negative lead belt or the grid with a partition plate, passing the lead belt or the grid to be tested through a wiring pile and a groove of an electric cell body in a plug-in manner, adjusting the position of a press-fit screw head and locking a fixing nut, adding sulfuric acid with certain concentration into the electric cell, covering a cover plate of the electric cell, finally placing the lead belt and the grid corrosion-resistant test tool in a constant-temperature water bath tank, and connecting the lead belt and the grid corrosion-resistant test tool into a charger test loop through a lead to perform constant-voltage or constant-current corrosion charging.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, but is susceptible to various modifications and changes by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a lead tape and grid corrosion resistance test fixture which characterized in that: the method comprises the following steps:
the electrolytic cell comprises an electrolytic cell (1), wherein a groove capable of storing sulfuric acid liquid is formed in the electrolytic cell (1), n slot groups for inserting a negative lead belt or grid (7) and a positive lead belt or grid (8) are formed in the groove, n is an odd number larger than or equal to 3, the negative lead belt or grid (7) and the positive lead belt or grid (8) are alternately distributed in the slot groups, the number of the inserted negative lead belt or grid (7) is more than that of the inserted positive lead belt or grid (8), each positive lead belt or grid (8) is positioned between the two negative lead belts or grids (7) after being inserted, a partition plate (6) is sleeved outside the negative lead belt or grid (7), the partition plate (6) protrudes out of an upper frame of the negative lead belt or grid (7), each slot group is formed by symmetrically arranged in the groove of two opposite surfaces in the groove, and the groove width is larger than the total thickness of the positive lead belt or grid (8)/the negative lead belt or grid (7) after being sleeved with the partition plate (6), the depth of the groove is greater than the height of the partition plate (6);
the wiring mechanisms are positioned on the upper side wall of the electric cell (1), the wiring mechanisms correspond to lugs of an anode lead belt or a grid (8)/a cathode lead belt or a grid (7) one by one, each wiring mechanism comprises a copper wiring pile (2), a step-down groove for passing the lugs is formed in each wiring pile (2), the width of the step-down groove is larger than the thickness of the anode lead belt or the grid (8)/the cathode lead belt or the grid (7), the length of the step-down groove is larger than the plate width 1/2 of the anode lead belt or the grid (8)/the cathode lead belt or the grid (7), a plurality of uniformly distributed internal thread holes I are formed in the wiring pile (2) on one side of the step-down groove, and the top ends of the internal thread holes I support against the lugs to tightly press the lugs on the side wall of the step-down groove of the wiring pile (2); the rear side of the wiring pile (2) is also provided with a small hole for installing the lead (5), the side wall of the wiring pile (2) is also provided with a second internal thread hole communicated with the small hole, and a set screw for fixing the lead (5) is arranged in the second internal thread hole;
the upper cover, the upper cover lid fits cell (1) upside, and the upper cover downside is equipped with the recess of stepping down that is used for stepping down three wiring mechanism.
2. The lead belt and grid corrosion-resistant testing tool according to claim 1, characterized in that: the groove is internally provided with 3 slot groups, the slot groups at two sides are respectively inserted with a negative lead belt or a grid (7), and the slot group at the middle is inserted with a positive lead belt or a grid (8).
3. The lead belt and grid corrosion-resistant testing tool according to claim 1, characterized in that: and the pressing screw (3) is also provided with a nut (4) for locking the pressing screw (3) and the wiring pile (2).
4. The lead belt and grid corrosion-resistant testing tool according to claim 1, characterized in that: the electric tank (1) is made of a transparent material of sealing acrylic or organic glass.
5. The lead belt and grid corrosion-resistant testing tool according to claim 1, characterized in that: the cover plate is matched with the electric tank (1) in size.
6. The lead belt and grid corrosion-resistant testing tool according to claim 1, characterized in that: the width of the groove is 1-3mm larger than the thickness of the positive lead belt or grid (8)/negative lead belt or grid (7) sleeved with the separator, and the depth of the groove is 10-50mm larger than the height of the separator (6).
7. The lead belt and grid corrosion-resistant testing tool according to claim 1, characterized in that: the width of the abdicating groove is 1-2mm larger than the thickness of the positive lead belt or grid (8)/negative lead belt or grid (7); the length of the abdicating groove is 10-20mm larger than the plate surface width 1/2 of the positive lead belt or grid (8)/negative lead belt or grid (7).
8. The lead belt and grid corrosion-resistant testing tool according to claim 1, characterized in that: the tabs of the positive lead belt or grid (8) and the negative lead belt or grid (7) are rectangular, and the positions of the tabs are at any position of the side edge/middle part or top part of the upper end parts of the positive lead belt or grid (8) and the negative lead belt or grid (7).
9. The lead belt and grid corrosion-resistant testing tool according to claim 1, characterized in that: the separator (6) is of an integrally formed bag-shaped structure with four sealed sides and bottom surfaces and an open top surface, the gap of the open end is 0.5-1.0mm larger than the thickness of a lead belt or a grid, the height of the separator is 8-20mm higher than the upper frames of a negative lead belt or a grid (7) and a positive lead belt or a grid (8), the height of the separator is 10-50mm lower than the top surface of the cell body of the cell (1), and the thickness of the separator is 0.5-1.5 mm.
10. The lead belt and grid corrosion-resistant testing tool according to claim 9, characterized in that: the material of the separator (6) comprises PE, PVC and PP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020508969.0U CN212207040U (en) | 2020-04-09 | 2020-04-09 | Lead belt and grid corrosion resistance test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020508969.0U CN212207040U (en) | 2020-04-09 | 2020-04-09 | Lead belt and grid corrosion resistance test tool |
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| Publication Number | Publication Date |
|---|---|
| CN212207040U true CN212207040U (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020508969.0U Active CN212207040U (en) | 2020-04-09 | 2020-04-09 | Lead belt and grid corrosion resistance test tool |
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|---|---|
| CN (1) | CN212207040U (en) |
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- 2020-04-09 CN CN202020508969.0U patent/CN212207040U/en active Active
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