FIELD OF INVENTION:
This invention relates to an improved watering system for lead acid
battery which 1s controlled by power backup system. More
particularly, the present invention provides a power backup system
controlled battery watering which is inbuilt into the lid/ top cover of
the battery.
PRIOR ART:
A lifetime of storage battery depends on a lifetime of polar plates and
electrolyte. When a storage battery is used, the electrolyte becomes
deteriorated due to the following changes:
1) evaporation of water in the electrolyte;
2) water loss of the electrolyte in the storage battery due to chemical
reactions in charging and discharging cycles;
3) in a conventional configuration of a storage battery, a balancing
hole (also functioning as a vent hole) is used to balance the
pressure inside and outside of the storage battery, however, the
electrolyte contacts and reacts with the carbon dioxide in the
atmosphere through the balancing hole, and forms the product
potassium carbonate, which leads to a lowered activity (or even a
loss of chemical activity) of the electrolyte.
To solve the problem of water loss in the electrolyte of a storage
battery, some devices for water filling have been proposed for storage
batteries.
Reference may be made to the following:
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Application no. 52/KOL/2003 relates to a pressure fed valve
regulated single point water/ acid pouring instalment for storage
battery comprising a float regulated valve (3) which controls water
inflow from inlet to each cell (2) of the battery by controlling the float
( 1) floating in the cell (2) with the help of a string.
Publication No W02010077499 relates to a low profile SPW valvemanifold
assembly that can be installed on and used with monobloc
batteries in limited space or clearance environments. The valve
cartridges are supported within the bosses and are located below the
top of the battery when the SPW assembly is mounted on the battery.
The valve cartridges are located entirely within the battery and only
the manifold extends above the battery.
US Publication No. 2010227206 relates to a refill valve for use m
single point battery watering systems for refilling wet cell batteries.
The refill valve comprises a porous internal flame arrestor that is in
the path of the liquid. Such a design is advantageous because it
prevents the internal propagation of flames between battery cells
through the battery watering system under dry conditions.
Publication No JP2010010109 relates to provide a single point
watering system capable of contributing to the reduction of a
maintenance work load of a storage battery device mounted to a
vehicle.
Publication No US2009004511 relates to a system for adding fluid to
a valve regulated lead acid ("VRLA") battery cell includes an injection
head assembly coupled to a vent opening. The injection head
assembly replenishes water or electrolyte depleted during operation of
the VRLA cell. Fluid is dispersed evenly across one or more absorbent
gas mats to promote even absorption by the mats. Fluid may be
dispersed while the VRLA is in operation, and fluid dispersion may be
accomplished using continuous streams or pulsed streams.
-4-
Publication No US2007074763 relates to a battery watering system
for delivering fluid to a battery has a connection to a fluid source,
which is to be delivered to a plurality of battery filling valve assemblies
mounted to a plurality of battery filling openings on a battery. Tubing
sections are used to interconnect the fluid source to the battery filling
valve assemblies
Publication No W02008016365 relates to series of cell fill valves are
interconnected by a series of hoses and T- connections, one to each
battery cell. Each cell fill valve is controlled by a ball in a seat in a
single fill opening. The ball is controlled by a float on a pivotable lever
arm with an end finger which holds the ball up to admit water with
the float down and allows the ball to lower onto the seat as the cell
fills causing the float to rise to a shutoff level when the cell is filled to
a desired level.
Publication No JP2010000006 relates to a watering apparatus
which can be suitably used for employing independent driving electric
power to facilitate automatic watering.
Publication No CA2535212 relates to a refill valve for use in single
point battery watering systems for refilling wet cell batteries. The refill
valve comprises a porous internal flame arrestor that is in the path of
the liquid. Such a design is advantageous because it prevents the
internal propagation of flames between battery cells through the
battery watering system under dry conditions.
Publication No AU2005234650 relates to a single point battery
watering control system comprising: a fluid source; conduit means for
delivering fluid from the fluid source to at least one battery, the
conduit means having integrated therewith flow restriction means for
retaining a fluid plug therein due to capillary action.
-5-
US Publication No 2006105230 relates to an automated single point
battery watering system which has a battery watering control system
comprising a fluid reservoir, a fluid delivery header for delivering fluid
from the reservoir to the cells of at least one battery, a flow controller
in communication with the fluid delivery header for controlling the
flow of fluid from the reservoir through the header, and a monitoring
system for monitoring the battery charge state and for timing the
activation of the flow controller for adjusting the flow relative to the
state of charge so that over watering does not occur.
Publication No. 20110236730 relates to a method for
simultaneously watering multiple aqueous battery cells, the method
including: (a) supplying water to a plurality of nozzles at a
substantially same pressure and time, the nozzles being configured to
restrict water flow there-through and dispense a substantially same
flow rate at the substantially same pressure; (b) passing the water
through each of the nozzles; (c) dispensing the water from each of the
nozzles to the multiple battery cells such that all water received by
each of the nozzles is dispensed, each of the nozzles being associated
with one of the cells such that each of the cells receives water from the
nozzle associated therewith; and (d) ending the supply of water to the
nozzles when the desired amount of water has been added to the cells
Publication No US2006199071 relates to a series of cell fill valves
are interconnected by tubing and T-connections, one to each battery
cell. Each cell fill valve is controlled by a ball in a seat in a single fill
opening. The ball is controlled by a float on a pivotable lever arm with
an end finger which holds the ball up to admit water with the float
down and allows the ball to lower onto the seat as the cell fills causing
the float to rise to a shutoff level when the cell is filled to a desired
level.
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Publication No EP1753055 relates to a water-filling device for a
storage battery comprises a water tank containing water to be
supplied to the storage battery, said water tank communicating with
an interior of the storage battery; an electromagnetic valve disposed in
the path of the water injection. An electrolyte level sensor disposed in
the storage battery. A controller for processing detected signals of the
electrolyte level sensor so as to control an open and a close of the
electromagnetic valve, wherein when the electrolyte level detector
detects that the electrolyte level is lower than a lower limit, the
controller turns the electromagnetic valve on so as to inject water into
the storage battery, and after the electrolyte level sensor detects that
the electrolyte level is higher than an upper limit, the controller turns
the electromagnetic valve off so as to stop injecting water.
Publication No EP1447865 relates to a single point watering system
for use with a lead-acid battery having a plurality of battery cell access
ports. The system comprises a plurality of refill valves and a manifold
having (i) a water feed tube with at least one external port and a
plurality of outlets each communicating with one of the plurality of
refill valves, and (ii) at least one passageway housing a flame arrestor
to permit the discharge of gases from the battery cells to the
surrounding environment only through the flame arrestor.
Publication No EP1453125 relates to a single point watering system
for refilling individual cells of a multi cell monobloc lead-acid battery
wherein each battery cell is fitted with a refill control valve.
Publication No EP0721228 relates to a battery watering system uses
a number of cells and modules. Watering ramps communicate water
from a reservoir to a series of interconnected watering caps so that
water within the watering caps and interconnecting conduits drains
through the pump and into the reservoir by syphon when no voltage is
applied to the pump.
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Publication No. CA1194103 relates to a watering device (10) for
maintaining a predetermined electrolyte level in the cells of a battery.
The device includes a plug body (72) consisting of a cover (12), a valve
housing (14) and a float guide (16).
US Patent No. US5482794 relates to a single point watering system
for a battery having a plurality of cells is provided with a bracket
secured to an end wall of a battery casing in overlying spaced relation
to an upper surface of at least one cell of the battery. A clamp is
provided for securing an inlet fitting on the filler tube of the single
point watering system to the underside of the bracket for securely
positioning the inlet fitting in a protected, readily accessible location
for quick connection and disconnection with a water supply system.
US Patent No. US4749633 relates to an automatic battery watering
device includes a housing mounted in the battery cell opening. The
housing has a chamber for receiving pressurized water, an internal
valve opening for passing the water into the cell, a valve pin mounted
in the valve opening, a float that is mounted in the battery electrolyte
and connected to the lower end of the pin so as to rise and fall in
response to a change in the liquid level in the cell, and a pair of
internally mounted diaphragms which center and support the pin and
float.
US Patent No 6213145 relates to a golf cart, powered by a plurality of
electrolytic, lead-acid batteries has an on-board battery water
replenishing system. Each battery includes a manifold that feeds
water to each battery cell and is capable of transmitting out of the
manifold gas generated during recharging. The watering system
includes a water storage tank positioned above the batteries, with
inlet and outlet tubing connecting each battery manifold to the tank in
a separate, parallel circuit.
-8-
US Patent No 4522896 relates to an automatic watering and gas
purging system for batteries and fuel cells utilizing a watering cap
which establishes a desired electrolyte level in the cells.
Publication No. CN102208595 discloses a battery liquid-filling device
characterized in that: an air extracting pump is sequentially and
hermetically connected with an air suction pipe, a buffer bottle, an air
extracting pipe, a liquid-filling pipe and a metering pump; the liquidfilling
pipe is provided with an electromagnetic valve; the air extracting
pipe is provided with an electromagnetic valve and a filter sheet; the
neck of the buffer bottle is provided with a secondary filter sheet; and
both the filter sheet and the secondary filter sheet are
polytetrafluoroethylene or polypropylene porous filter sheets, the
aperture is 2 to 60 microns, and the porosity is 70 to 85 percent.
Publication No. CN102569716 provides an automatic liquid filling
machine for an ultra-thin battery. The automatic liquid filling machine
comprises a rack, two clamp plates are fixed on the rack, a track is
formed between the clamp plates, and a transmission chain is fixed in
the track and is connected with a stepping motor.
Publication No. CN202165647 provides a liquid-filling check valve
and a lithium battery liquid filling device, wherein the liquid filling
check valve comprises a valve body, a nozzle base, a valve plug ball
and a reset elastic piece, the valve body comprises an input end and
an output end, a valve cavity is arranged in the valve body and
comprises a medium input port and a medium output port which are
respectively corresponding to the input end and the output end of the
valve body, the valve plug ball and the reset elastic piece are arranged
in the valve cavity, the nozzle base is fixedly connected with the
output end of the valve body, one end of the valve plug ball props
against the medium input port, the other end of the valve plug ball
props against the medium output port by the reset elastic piece, and a
sealing surface matched with the valve plug ball in a sealing manner
is arranged on the inner wall of the medium input port.
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Publication No. CN201594567 discloses a liquid filling device for
storage batteries comprising a liquid storage container, a liquid filling
gun, a peristaltic pump, a control device of the peristaltic pump and
an air pump. A head of the liquid filling gun is provided with an air
passage and a liquid passage, the liquid filling gun is provided with a
start switch connected with the peristaltic pump, the liquid passage is
connected with the liquid storage container via the peristaltic pump
and the air passage is connected with the air pump and provided with
a pressure sensor connected with the control device of the peristaltic
pump.
US Publication No. 20100323227 provides a water filling connector
for automatically filling battery cells, having a cylindrical connector
housing comprising a connector fitting for water inlet into the housing
and a valve actuated by a swimmer and having a ring-shaped valve
body and a conical valve seat disposed between an inlet channel and
an outlet channel leading into the battery cell.
Reference may be made to an article entitled "Battery Watering
Technologies" talks about battery watering technology with
encapsulated float option.
Reference may be made to an article entitled "The Millenium Plus +
Battery Watering System" by Flow-Rites. The article talks about a It
consists of automatic shut-off valves, interconnected with tubing, that
replace the existing vent caps. A quick coupling allows the system to
be connected to a water supply. Once connected, water flows into each
cell until it reaches the correct level. A flow indicator built into the
water supply tells the operator when filling has been completed. The
entire process takes just 30 seconds per battery.
Reference may be made to an article entitled "Battery Watering
Systems" by Powercell. The article talks about using a battery
watering system such as BFS has several benefits.
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Thus all the available conventional system for watering the battery
forms mesh like structure on the top or beneath the top cover which is
make the handling of the battery complicated. Also an additional
control system is required for automatic filling of water to which
increases the cost of the system. Therefore, there exists a need to
improve for watering the battery which removes the mesh like
structure from the battery and easy to handle
Thus in view of the above prior art, the present invention provides an
improved automatic water filling arrangement for battery which
removes the mesh like structure from the cover of the battery and is
easy to handle. The present invention provides an with automatic
water filling for battery which is controlled by power backup system.
The invention talks about a system for watering aqueous battery cells
which is controlled by the power backup system connected thereto.
OBJECTS OF THE INVENTION
Primary object of the present invention is to provide automatic water
filling arrangement for battery which is controlled by the power
backup system
Yet another object of the present invention is to provide automatic
water filling arrangement for battery which is easy to handle and
manufacture.
Still another object of the present invention is to provide automatic
water filling arrangement for battery which is cost effective.
Another object of the present invention is to provide valves controlled
through the power backup system to actuate the valves and to let
water in for topping the battery and stopping when full
',
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SUMMARY OF THE INVENTION
This invention provides an improved watering system for battery
comprising of power backup system connected to an actuation unit for
actuating pumping unit, in which said actuation unit is provided in
connection with the watering tube wherein the power backup system
actuates the pumping unit at a regular interval to pump the water
from the water source into the cell and controls the leveling of water in
each cell.
The water supply system compnses of any water supply or water
tank/ bottle, which is externally provided or inside the trolley of the
battery.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Further objects and advantages of this invention will be more
apparent from the ensuing description when read in conjunction with
the accompanying drawings and wherein:
Figure 1 shows block diagram of battery watering system with an
integrated power backup system according to the present invention.
Figure 2 shows watering system with trolley according to the present
invention.
DETAIL DESCRIPTION OF THE PREFERRED EMBODIMENTS
WITH REFERENCE TO THE DRAWINGS
The present invention discloses an improved watering system for
battery. Reference may be made to figure 1 which indicates automatic
water filling system for battery controlled by power backup system.
The system for watering aqueous battery cells is connected to the
power backup system. Further, the
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backup system is connected to the actuation unit which actuates the
pumping unit at a regular interval. The actuation unit is provided in
connection with the watering tube comprising a sensor. This tube gets
divided into multiple tubes containing valves. Each cell has separate
shut off valve which is such as but not limited to the electromagnetic.
Thus, the backup system operates the device to pump the water into
the cell and controls the leveling of water in each cell by shutting the
valve off as per the requirement. The device pumps the water from the
water tank to the various cells of the battery.
The automatic battery water replenishing device includes automatic
shut off valves mounted on the battery cell opening replacing the
existing vent caps, interconnected through water feeding channels inbuilt
in the battery lid itself, called as housing. The manifold thus
formed feeds water to each battery cell and is capable of transmitting
out of the manifold gas generated during recharging. The housing
comprising of chamber with a plurality of valves receiving pressurized
water either by gravity, manually pumped by a hand pump or by
motorized pumping connected through quick coupling arrangement to
the water source. The watering source comprises a water storage tank
positioned preferably above or anywhere near the batteries within the
battery trolley j rack or at any convenient place, with inlet and outlet
tubing connecting each battery manifold to the tank in a separate,
parallel circuit joined through quick coupler. Once connected, water
flows into each cell until it reaches the correct level. The correct level
when reached does not allow pumping more water and when filling is
completed, the valve gets shut off and an alram is raised. The
automatic shut off valves provide a similar flow rate of water over a
similar period of time to provide a similar amount of water to each
cell.
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The system also compnses a valve connected to a vent tube of the
storage battery, by which the produced gas of the storage battery
could be discharged to the atmosphere, but the air can not enter into
the storage battery. Thus, the invention removes the mesh like
structure from the battery and easy to handle.
The water supply systems are either external water supply or water
tank/ bottle inside the trolley of the battery.
The trolley of the battery comprises a water tank/ bottle mounted
inside the trolley which contains water for supplying to the storage
battery. The tank/ bottle is connected to the pumping machine which
is on the trolley. The water tank/ bottle communicates with the
interior of the storage battery. The user needs to pump the water
through pumping machine. The tank/ bottle can be refilled by
connecting through tap or manually.
Reference Numerals
Power Backup System -1
Sensor-2
Water on I off valve-3
Water pump operating wire-4
Battery-5
Gas venting valve-6
Water pump-7
Water bottle or tank-8
Water tank-W
Trolley-T
It is to be noted that the present invention 1s susceptible to
modifications, adaptations and changes by those skilled in the art.
Such variant embodiments employing the concepts and features of
this invention are intended to be within the scope of the present
invention, which is further set forth under the following claims.

WE CLAIM:
1. An improved watering system for battery comprising of power
backup system connected to an actuation unit for actuating
pumping unit, in which said actuation unit is provided in
connection with the watering tube, wherein the power backup
system actuates the pumping unit at a regular interval to pump
the water from the water source into the cell and controls the
leveling of water in each cell.
2. An improved watering system for battery as claimed in claim 1,
wherein said watering tube comprising a sensor.
3. An improved watering system for battery as claimed in claim 1
or 2, wherein said tube is divided into a plurality of tubes
containing valves.
4. An improved watering system for battery as claimed in any of
the preceding claims, wherein the power backup system
controls the leveling of water in each cell by shutting the valve
off in cell according to the requirement.
5. An improved watering system for battery as claimed in any of
the preceding claims, wherein the automatic shut off valves are
mounted on the battery cell opening, interconnected through
water feeding channels in-built in the battery lid.
6. An improved watering system for battery as claimed m any of
the preceding claims, wherein the system shuts off the valve
and generates an alarm as the water reaches the correct level
without allowing pumping of more water into the cell.
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7. An improved watering system for battery as claimed in any of
the preceding claims, wherein the automatic shut off valves
provide a similar flow rate of water over a similar period of time
to provide a similar amount of water to each cell.
8. An improved watering system for battery as claimed m any of
the preceding claims, wherein each cell has separate shut off
valve preferably electromagnetic in nature.
9. An improved watering system for battery as claimed in any of
the preceding claims, wherein the watering source comprises a
water storage tank positioned preferably above or anywhere
near the batteries within the battery trolley/ rack or at any
convenient place, with inlet and outlet tubing connecting each
battery manifold to the tank.
10. An improved watering system for battery as claimed in
any of the preceding claims, wherein the tank/ bottle may be
refilled by connecting through tap or manually.
11. An improved watering system for battery as claimed in
Dated
any of the preceding claims, wherein the automatic water filling
system further comprises a valve connected to a vent tube of the
storage battery to discharge the produced gas of the storage
battery to the atmosphere and prevents air from entering into
the storage battery.