KR20200046761A - Electrolyte Circulation Device Improved Circulation Capacity and Vibration Resistance of Lead-acid Battery Electrolyte - Google Patents

Abstract

The present invention relates to an electrolyte circulation device with improved circularity and vibration resistance of a lead-acid battery electrolyte, and more specifically, to an electrolyte circulation device with improved circularity and vibration resistance of a lead-acid battery electrolyte, which provides the inside of battery with distribution with even weight by circulating an electrolyte such that low-weight sulfuric acid of an electrolyte upper surface (4) is mixed with high-weight sulfuric acid which has completed a high-weight sulfuric acid inlet (2) formed on a lower side in a mixing space and is introduced to the electrolyte upper surface (4) when an external force is applied, thereby allowing upper and lower parts of the electrolyte to maintain uniform characteristics so as to prevent acid stratification. According to the present invention, the inside of a battery is provided with distribution with even weight to allow upper and lower parts of an electrolyte to maintain uniform characteristics so as to prevent acid stratification, and thus voltage is uniformly formed on the entire pole plate to improve a charging function of the battery, thereby improving durability. Also, a strap fixing pin (6) formed to protrude by a predetermined length to be fixed and coupled to a lower part of a strap (5) is formed on a lower end of the electrolyte circulation device so as to buffer impact between parts due to external vibration, thereby providing vibration resistance.

Description

Electrolyte Circulation Device Improved Circulation Capacity and Vibration Resistance of Lead-acid Battery Electrolyte

The present invention relates to an electrolyte circulating device having improved lead acid battery electrolyte circulation and improved vibration resistance, and more particularly, when a force of external force is applied, low specific sulfuric acid of the upper surface 4 of the electrolyte is formed at a lower specific gravity. By mixing in a mixed space with high specific gravity sulfuric acid that has risen through the sulfuric acid inlet (2) and circulating the electrolyte to be mixed into the upper surface of the electrolyte (4), it provides a uniform distribution of specific gravity inside the battery so that the upper and lower parts of the electrolyte are uniformly layered. The present invention relates to an electrolyte circulating device having improved lead-acid battery electrolyte circulation resistance and vibration resistance.

The lead acid battery is a secondary battery and is an energy source capable of repeating charging and discharging through a chemical reaction between lead and sulfuric acid.

Charging of the lead acid battery is performed through the vehicle's alternator, and the alternator generally performs constant voltage charging.

In the actual driving conditions of the vehicle, constant voltage charging is performed. The higher the voltage of the lead acid battery, the lower the amount of charge, and the lower the voltage, the higher the current and the higher the charging characteristics.

The charging characteristic is increased as a large amount of current is charged in a short time, and if the charging characteristic is high after discharging the lead acid battery, the life of the lead acid battery can be lengthened.

However, when a stratification phenomenon of the lead acid battery electrolyte occurs, the charging state of the battery is not smooth due to the applied voltage, so that the electrolyte has a low specific gravity rising upward and a high specific gravity sinking as the service life expires.

The charging of the battery by the applied voltage causes a decrease in the life of the lead acid battery.

In addition, when a stratification phenomenon occurs in the lead acid battery, oxidation occurs more rapidly in the lead inside the battery, and it is difficult to exert 100% of the functions, and thus there is a high possibility of deteriorating performance.

Accordingly, a structure capable of improving the performance and durability of the battery is required through a structure for circulating sulfuric acid.

Republic of Korea Patent Registration No. 10-0483246

Therefore, the present invention has been devised to solve the conventional problems,

The object of the present invention is that when the force of the external force is applied, the low specific gravity sulfuric acid of the electrolyte top surface 4 is mixed in a mixed space with the high specific sulfuric acid raised through the high specific sulfuric acid inlet 2 formed on the lower side, and the electrolyte top surface 4 By circulating the electrolyte to be mixed with), it provides an even distribution of specific gravity inside the battery so that the upper and lower parts of the electrolyte maintain uniform properties to prevent stratification.

Another object of the present invention is to form a strap fixing pin (6) formed to protrude a certain length to be fixedly coupled to the lower portion of the strap (5) at the bottom of the electrolyte circulator, by cushioning the impact between parts due to external vibration , To provide vibration resistance.

In order to achieve the problem to be solved by the present invention, an electrolyte circulating device having improved lead acid battery electrolyte circulation and improved vibration resistance according to an embodiment of the present invention,

It is formed on the front and back of each cell 10 of the battery, and is located in contact with the front wall 11 and the wall surface of the battery inner case, the electrolyte mixing space portion 3 having a mixing space; and

A high specific gravity sulfuric acid inlet (2) for passing sulfuric acid inside the battery to move to the mixing space when sulfuric acid inside the battery flows due to external force. ); To solve the problem of the present invention.

Through the electrolyte circulator, which improves the circulation performance of the electrolyte and the vibration resistance of the lead-acid battery of the present inventor, when a force of external force is applied, the low specific gravity sulfuric acid of the upper surface 4 of the electrolyte, the high specific gravity sulfuric acid inlet 2 formed on the lower side By mixing in the mixed space with the high specific gravity sulfuric acid that has passed through and circulating the electrolyte solution to be mixed into the top surface 4 of the electrolyte, a uniform specific gravity distribution is provided inside the battery to maintain uniform characteristics at the top and bottom of the electrolyte to prevent layering. By forming the voltage evenly throughout the battery, the battery charging function is improved, thereby improving the durability performance.

In addition, by forming a strap fixing pin (6) formed to protrude a certain length to be fixedly coupled to the lower portion of the strap (5) at the bottom of the electrolyte circulating device, by cushioning the impact between parts due to external vibration, vibration resistance Will be provided.

1 is a perspective view showing an electrolyte circulating device having improved lead acid battery electrolyte circulation performance and vibration resistance according to an embodiment of the present invention.
2 is a cross-sectional view of an electrolyte circulating device having improved lead acid battery circulation and improved vibration resistance according to an embodiment of the present invention mounted on a lead acid battery.
3 is a perspective view of an electrolyte circulating device having improved lead acid battery circulation and improved vibration resistance according to an embodiment of the present invention, as viewed from the front.
4 is a perspective view of an electrolyte circulating device having improved lead acid battery circulation and vibration resistance according to an embodiment of the present invention, as viewed from the bottom.
5 is a graph comparing the improved product and the conventional product including the electrolyte circulator according to an embodiment of the present invention, and is a graph showing the lifespan in a high temperature environment according to the American Automobile Engineers Association standard.

The lead acid battery electrolyte circulation improvement and vibration resistance improved according to an embodiment of the present invention,

It is formed on the front and back of each cell 10 of the battery, and is located in contact with the front wall 11 and the wall surface of the battery inner case, the electrolyte mixing space portion 3 having a mixing space; and

A high specific gravity sulfuric acid inlet (2) for passing sulfuric acid inside the battery to move to the mixing space when sulfuric acid inside the battery flows due to external force. ); Is characterized by being configured to include.

At this time, the low specific gravity sulfuric acid,

It is characterized in that it passes through the upper portion of the electrolyte mixing space portion (3) and moves to the mixing space.

Therefore, it is characterized in that low specific gravity sulfuric acid and high specific gravity sulfuric acid are mixed in the mixing space and mixed into the upper surface 4 of the electrolyte.

In addition, a strap fixing pin (6) formed to protrude a predetermined length to be fixedly coupled to the lower portion of the strap (5) at the bottom of the electrolyte circulation device of the present invention; characterized in that further comprises a.

In addition, the electrolyte circulating device of the present invention,

When an external force is applied, the electrolyte solution is mixed so that the low specific gravity sulfuric acid in the upper surface 4 of the electrolyte is mixed in the mixed space with the high specific sulfuric acid raised through the high specific sulfuric acid inlet 2 formed at the lower side and mixed into the upper surface 4 of the electrolyte. By circulating, it is characterized by providing a uniform distribution of specific gravity inside the battery so that the upper and lower portions of the electrolyte solution maintain uniform properties, thereby preventing a layering phenomenon.

At this time, the strap fixing pin (6),

It is characterized in that it is possible to provide vibration resistance by cushioning the impact between parts due to external vibration.

Hereinafter, it will be described in detail through an embodiment of an electrolyte circulating device having improved lead acid battery electrolyte circulation performance and vibration resistance according to the present invention.

1 is a perspective view showing an electrolyte circulating device having improved lead acid battery electrolyte circulation performance and vibration resistance according to an embodiment of the present invention.

2 is a cross-sectional view of an electrolyte circulating device having improved lead acid battery circulation and improved vibration resistance according to an embodiment of the present invention mounted on a lead acid battery.

3 is a perspective view of an electrolyte circulating device having improved lead acid battery circulation and improved vibration resistance according to an embodiment of the present invention, as viewed from the front.

4 is a perspective view of an electrolyte circulating device having improved lead acid battery circulation and vibration resistance according to an embodiment of the present invention, as viewed from the bottom.

1 to 4, an electrolyte circulating device having improved lead acid battery electrolyte circulation performance and vibration resistance, according to the present invention,

It is formed on the front and back of each cell 10 of the battery, and is located in contact with the front wall 11 and the wall surface of the battery inner case, the electrolyte mixing space portion 3 having a mixing space; and

A high specific gravity sulfuric acid inlet (2) for passing sulfuric acid inside the battery to move to the mixing space when sulfuric acid inside the battery flows due to external force. ); Is characterized by being configured to include.

When the electrolyte circulator having the above-described configuration is mounted on a lead acid battery, a passage is formed inside the lead acid battery, so that a high specific gravity electrolyte and a low specific gravity electrolyte are relatively easily combined to prevent stratification.

Specifically, the electrolyte mixture space 3 is formed on the front and rear surfaces of each cell 10 of the battery, respectively, in the embodiment, one on the front side and two on the rear side.

It is obvious that the above-described number can be adjusted as necessary.

At this time, the electrolyte mixture space portion 3 is positioned such that the front wall 11 and the wall surface of the battery inner case are in contact with each other, and has a mixing space.

The mixing space has a certain size to provide a space where low specific gravity sulfuric acid and high specific gravity sulfuric acid can be mixed.

At this time, the high specific gravity sulfuric acid inlet (2) is configured to be installed at least one successively at the bottom of the electrolyte mixture space portion (3), in the embodiment of the present invention provides a long cylindrical shape, the shape is deformed It is natural that this is possible.

Therefore, when sulfuric acid inside the battery flows by an external force, it passes through a high specific gravity sulfuric acid to perform a function for moving to the mixing space.

In addition, the low specific gravity sulfuric acid passes through the upper portion of the electrolyte mixture space portion 3 and moves to the mixture space according to the formation of the electrolyte mixture space portion 3.

Therefore, it is characterized in that low specific gravity sulfuric acid and high specific gravity sulfuric acid are mixed in the mixing space and mixed into the upper surface 4 of the electrolyte.

On the other hand, the horizontal length of the high specific sulfuric acid inlet (2) is formed to be smaller than the horizontal length of the electrolyte mixture space portion to guide the high specific gravity sulfuric acid to quickly move to the mixing space.

As described above, when the process of mixing and dispersing sulfuric acid to the upper surface 4 of the electrolyte inside the battery is repeated, it is possible to have an even distribution of specific gravity throughout the battery, suppressing the voltage state of the battery and suppressing the vehicle's alternator. It is possible to have a fast charging characteristic at the time of constant voltage charging through, thereby exhibiting a high charging characteristic, and it is possible to increase the life of the battery.

On the other hand, according to an additional aspect, a strap fixing pin (6) formed to protrude a predetermined length to be fixedly coupled to the lower portion of the strap (5) at the bottom of the electrolyte circulation device; characterized in that further comprises a do.

Through this, the internal parts of the lead acid battery are fixed to improve vibration resistance.

Therefore, the strap fixing pin (6),

It is characterized in that it is possible to provide vibration resistance by cushioning the shock between parts due to external vibration.

After all, the present invention electrolyte circulation device,

When an external force is applied, the electrolyte solution is mixed so that the low specific gravity sulfuric acid in the upper surface 4 of the electrolyte is mixed in the mixed space with the high specific sulfuric acid raised through the high specific sulfuric acid inlet 2 formed at the lower side and mixed into the upper surface 4 of the electrolyte. By circulating, it is possible to prevent a stratification phenomenon by providing a uniform distribution of specific gravity inside the battery so that the upper and lower parts of the electrolyte solution maintain uniform properties.

As described above, in order to grasp the effects of the present invention, a finished lead-acid battery and a finished lead-acid battery equipped with an electrolyte circulation device, which is the method of the present invention, were manufactured.

In order to grasp the effects of the above invention, a conventional electrode plate was fabricated, assembled, and converted to perform basic performance, life test and vibration test.

In addition, a product having a final capacity of 120 Ah was manufactured, and a life test was conducted according to SAE J2801 (life test) and EN50342 (vibration test) standards to verify life at high temperatures.

As a result of the test, the capacity and life of 120Ah at the holding capacity ended in 304 cycles, and the vibration test achieved V3 LEVEL.

This improved by 10% in storage capacity and 11% in life compared to conventional products.

Test data for this will be described later.

5 is a graph comparing the improved product and the conventional product including the electrolyte circulator according to an embodiment of the present invention, and is a graph showing the lifespan in a high temperature environment according to the American Automobile Engineers Association standard.

<Test Example>

The conventional product, which will be described later, refers to a general product used in a lead acid battery (BX120) manufactured by the applicant, and the improved product refers to a product manufactured by including the electrolyte circulation device of the present invention.

division Conventional products Improvement CCA 875A 900A C20 120Ah 130Ah Durability (SAE J2801) 274 Cycle 304 Cycle Vibration resistance (EN50342) V2 V3

Table 1 shows the performance test results of the conventional lead-acid battery and the lead-acid battery of the present invention, and the durability is 274 cycles in the case of the conventional product and 304 cycles in the case of the improved product. (See Fig. 5)

Therefore, it was confirmed through experiments that the durability was improved by 11% over the conventional products.

1) Cold Cranking Ampere (CCA)

In general, the rapid discharge characteristic of a battery rapidly decreases below -10 ℃, and the low-temperature starting current (CCA) is a high-rate discharge test for evaluating the starting ability of a vehicle at low temperatures. The voltage at the time of ultra-discharge is measured.

In this test, a voltage of 30 seconds or more is required at 7.2 V or higher, and the higher the performance, the better the performance.

In the present invention, CCA was calculated using a correction equation of (30 sec voltage ÷ 6-0.25) x 860.

As shown in Table 1, the 30 second voltage is 7.78V and the converted CCA is 900A, which shows a 3% performance improvement effect compared to the existing product. It was found that it had a positive effect on the current.

2) 20 hour rate capacity (AH)

This is to find out the low-rate discharge characteristics, and is to continuously discharge at 3.75A, which is a relatively small current for the battery capacity, to measure the discharge capacity (AH) until the voltage reaches 10.5V.

As a result of the test, it was 125AH to 135AH, which is exactly 130AH, showing a performance improvement effect of 8% compared to the existing product, which is positive for the 20 hour rate capacity (AH) when a lead acid battery including an electrolyte circulator is manufactured. It was found that it had an effect.

3) Life verification test (SAE J2801, Cycle)

As a graph (J2801) of verifying life in a 75 ° C environment according to the American Society of Automotive Engineers, the test standard measures the cycle until the life of the lead acid battery repeats charging / discharging at high temperature (75 ° C). It is a test method.

(1 cycle: 25A 18 sec discharge, 14.2V [max 25A] constant voltage 30 min charge-1 cycle after 5 repetitions)

This test was repeated 34 times for one week, and after standing for 56 hours, discharged at a high rate of 200 A to measure the voltage at the time of 30 seconds to determine the state of the battery.

If the voltage at 30 seconds is 7.2V or more, the battery is judged to be in an intact state, and the above cycle is repeated.

As a result of the test, it can be seen that when the lead acid battery including the electrolyte circulation device was manufactured by showing an effect of 11% improvement in life compared to the conventional product, it had a positive effect on the increase in life.

4) Vibration resistance test (EN50342, LEVEL)

It is a test method in accordance with the European battery regulations and indicates the vibration characteristics as LEVEL based on the vibration time and the amount of vibration.

This test lasts for 2 hours. The vibration frequency of each LEVEL is vibrated for 2 hours, stored for 1 day, and then discharged at a high rate with 0.6 * CCA, the voltage for 60 seconds should be 7.5V or higher.

As a result of the test, it can be seen that, when the lead acid battery including the electrolyte circulation device was manufactured by showing a 33% improvement in life compared to the conventional product, it had a positive effect on the increase in vibration resistance.

After all, through the electrolyte circulating device of the present invention, the upper electrolyte solution and the lower electrolyte solution can be easily mixed through the space inside the device to improve the stratification phenomenon, and the structure of the present invention can be fixed and used for the strap and the injection material to operate. It strengthens the resistance to liver vibration.

That is, when an external force is applied, the low specific gravity sulfuric acid of the electrolyte top surface 4 is mixed in the mixed space with the high specific sulfuric acid raised through the high specific sulfuric acid inlet 2 formed on the lower side and mixed into the electrolyte top surface 4 By circulating the electrolyte as much as possible, the distribution of the specific gravity is provided inside the battery to maintain uniform characteristics on the upper and lower parts of the electrolyte to prevent stratification, thereby evenly forming a voltage across the electrode plate to improve the battery charging function, thereby improving durability performance. do.

In addition, by forming a strap fixing pin 6 formed to protrude at a certain length to be fixedly coupled to the lower portion of the strap 5 at the lower end of the electrolyte circulation device, the shock between the parts due to external vibration is absorbed, thereby providing vibration resistance. Will be provided.

Those of ordinary skill in the art to which the present invention pertains to the above contents can understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, the embodiments described above are exemplified in all respects and should be understood as non-limiting.

1: precursor
2: High specific sulfuric acid inlet
3: Electrolyte mixing space part
4: top surface of electrolyte
5: Straw
6: Straw fixing pin
10: battery cell
11: Rolled wall

Claims (6)

In the electrolyte circulating device having improved lead acid battery electrolyte circulation and vibration resistance,
It is formed on the front and back of each cell 10 of the battery, is located in contact with the front wall 11 and the wall surface of the inner wall of the battery case, the electrolyte mixture space portion (3) having a mixing space; and
A high specific gravity sulfuric acid inlet (2) for passing sulfuric acid inside the battery to move to the mixing space when sulfuric acid inside the battery flows due to external force by being installed at least one after another at the bottom of the electrolyte mixing space part (3). ); The electrolyte circulating device having improved lead acid battery circulation and improved vibration resistance.
According to claim 1,
Low specific sulfuric acid,
An electrolyte circulating device with improved lead acid battery circulation and improved vibration resistance, characterized in that it passes through the upper portion of the electrolyte mixture space (3) and moves to the mixing space.
According to claim 2,
An electrolyte circulator with improved lead acid battery circulation and improved vibration resistance, characterized in that low specific gravity sulfuric acid and high specific gravity sulfuric acid are mixed and mixed into the upper surface of the electrolyte in the mixing space.
According to claim 1,
Lead strap battery electrolytic solution improved circulation and improved vibration resistance, characterized in that further comprises a strap fixing pin (6) formed to protrude a certain length to be fixedly coupled to the lower strap (5) at the bottom Electrolyte circulator.
According to claim 1,
The electrolyte circulating device,
When an external force is applied, the electrolyte solution is mixed so that the low specific gravity sulfuric acid in the upper surface 4 of the electrolyte is mixed in the mixed space with the high specific sulfuric acid raised through the high specific sulfuric acid inlet 2 formed at the lower side and mixed into the upper surface 4 of the electrolyte. By circulating, by providing a uniform distribution of specific gravity inside the battery to maintain the uniform characteristics of the upper and lower electrolyte to prevent the stratification phenomenon of the lead-acid battery electrolyte circulation device for improving the circulation and improved vibration resistance. The method of claim 4,
The strap fixing pin (6),
An electrolyte circulation device having improved lead acid battery electrolyte circulation and improved vibration resistance by cushioning shocks between parts due to external vibration.

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