CN87208016U - Small-sized sealed lead-acid accumulator - Google Patents

Abstract

The utility model provides a small-sized sealed lead-acid accumulator, which adopts an all-plastic sealing structure with double covers and single groove. In the middle of the groovy is provided with a central plastic vertical tube which is perpendicular to the bottom of the groovy, and the groovy can hold an electric core whose structure of Gates type or tube type. The negative pole leading wire of the electric core passes through the vertical tube and connects with the iron bottom which is suitably arranged on the bottom of the groovy, and the positive end pillar is arranged on the center of the external cover. The utility model which has the advantages of compact structure and good sealability can not leak liquor when working under any position. The external shape and the polarity of small-sized sealed lead-acid accumulator are the same as the dry battery, so the small-sized sealed lead-acid accumulator can be used with the dry battery together, but the performance is more excellent than the dry battery, besides, the small-sized sealed lead-acid accumulator is convenient for processing and manufacturing.

Description

Small-sized sealed lead-acid accumulator

The utility model relates to and a kind of chemical energy directly is transformed into the device of electric energy, particularly a kind of small sealed lead-acid battery.

United States Patent (USP) 3,862,861 have disclosed a kind of profile non-maintaining sealed lead acid storage battery similar to general dry battery to polarity, and the both positive and negative polarity of its electric core segment is made of the soft currect collecting net of very thin non-oneself's supporting, separate with containing electrolytical soft membrane between the two poles of the earth.This storage battery can be worked under any position, and need not to add or adjust electrolyte in the operating period.But the sealing of its positive and negative lead wires and shell is unreliable.For addressing this problem, U.S. Gates Co., Ltd (Gates Energy Products Inc.) has adopted United States Patent (USP) 3 when implementing this patent, 704,173 scheme, but the result makes the coexist top of battery of positive and negative electrode lug plate, this structure can not be used for the numerous civil electric appliance of general dry battery as power supply, thereby has limited its range of application greatly, also is difficult to make the battery littler than R20.

The purpose of this utility model be to provide a kind of profile and polarity can be general fully with general dry battery, sealing is reliable, and the splendid small-sized maintenance-free lead accumulator of performance.

The purpose of this utility model realizes by following manner: the housing of battery case adopts the overall plastic hermetically-sealed construction of double-canopy (comprising inner cap and enclosing cover) single groove, and the center plastic standing tube perpendicular to bottom land is set in the middle of the groove, and the bottom edge of groove is joined at the bottom of the iron.Space between two lids constitutes the air chamber of battery, in establish safety exhaust and positive and negative electrode pole and lead-in wire; Positive wire with cover the shape of inlaying such as the newel post of dry cell copper cap outward and join, negative wire then passes the center plastic standing tube and joins at the bottom of the iron bottom battery case.Can compatible Gates's type or cast electricity core in the groove.Wherein Gates's type system is entwined with soft electrode and barrier film; And cast is divided into two kinds of two-tube and single tubes.Double-tube type electricity core system is formed by annular concentric both positive and negative polarity intussusception, two concentric glass fiber sleeve pipes perpendicular to bottom land promptly are set in groove, and filling glass silk flosssilk wadding or paper in the annular space between two sleeve pipes, and between inner sleeve and the central riser, then put into pure plumbous matter currect collecting net and lead powder in the cavity between outer tube and the battery cell wall, to form positive and negative electrode.The structure of single tube type electricity core is similar to double-tube type, and just the negative pole employing is traditional is coated with the cream electrode, and a glass fiber sleeve pipe only is set between the positive and negative electrode.

The utility model adopts inadequate electrolyte method, and the gas that is produced when charging by design code speed can be absorbed by half-naked both positive and negative polarity, has avoided moisture loss, thereby need not to add or adjust electrolyte in the battery useful life.

The utility model is in full accord with conventional dry cell batteries on profile and polarity, thereby can be mutually general with dry cell, and can provide the voltage higher, bigger and operating current, wideer working temperature interval more stably than dry cell, and more cheap ampere-hour price, Maintenance free again, range of application is very wide.

The utility model compact conformation, good seal performance can be worked and no leakage under any position, are applicable to multiple core struetures such as Gates's type, cast, can provide the lead acid accumulator littler than R20, as 2#, 4#, 5# battery.And, be convenient to processing and manufacturing because housing adopts plastics to make, cost greatly reduces than iron-clad goods of the same type.

Below with reference to accompanying drawing the utility model is described in further detail, wherein

Fig. 1 be embodiment 1 just wait axle side vertical 1/2nd cutaway views;

Fig. 2 be embodiment 2 just wait axle side vertical 1/2nd cutaway views;

Fig. 3 is the inner cap top view of Fig. 1 or Fig. 2;

Fig. 4 is the A-O-A profile of Fig. 3.

Embodiment 1-Gates type

Referring to Fig. 1, Fig. 3 and Fig. 4, the centre of the battery case of being made by the ABS engineering plastics 1 is provided with one perpendicular to bottom land, and the center standpipe made from same material 25, and this external diameter of pipe slightly increases from top to bottom.Standpipe 25 bottoms and bottom land form one when injection moulding, manage an embedded metal (copper or lead-antimony alloy) negative wire 12.The upper end inner side step of groove 1 and battery inner cap 3 and enclosing cover 2(two lids are made by ABS plastic) close joining, this is shut with plastic cement after being in and finishing general assembly.There is circular hole in the central authorities of inner cap 3, and the external diameter of its aperture and center standpipe 25 upper ends is complementary, and form pit around the hole, shut usefulness for encapsulating.Negative wire 12 upwards stretches in the air chamber that forms between inner cap 3 and the enclosing cover 2, and it leans out length should apply bonding wire enough.At the bottom of groove 1 bottom edge is joined iron 10, there is circular hole at the center at the bottom of the iron, and lead-in wire 12 passes downwards thus, and lives with 10 welderings at the bottom of the iron.Edge circle 11 is same with ABS engineering plastics injection moldeds, and is bonded in groove 1 and goes to the bottom, in order at the bottom of the fixing iron 10.

One acid-adding port 23 and two conduits 9 that distribute with the center symmetric mode are arranged on the inner cap 3.Be stamped safety cap 4 at the acid-adding port top.This used for safety helmet ethylene-propylene rubber is made, and can keep better elastic in-40 ℃ to+70 ℃ scopes.Acid-adding port 23 sidewalls have an aperture 7, and ejecting/collecting gas is used when charging not according to the rated condition hypervelocity because of the user for battery.Under normal circumstances, steam vent 7 is blocked under being press-fitted of enclosing cover 2 by rubber safety cap 4.When charging is too fast, when the gas of generation has little time to absorb into half-naked electrode, will cause the groove internal pressure to be increased to being enough to back down Capsule 4 and enter air chamber between two lids, and discharge outside the battery by the enclosing cover upper air-vent 6 and the threaded portion of mending acid lid 8.By the diameter of change aperture 7 and the height of position thereof, scalable safety cap 4 starts the threshold values of operating pressures.After the exhaust action was finished, groove 1 chamber pressure descended, and safety cap 4 blocks hole 7 again by elastic reaction.Obviously, the gas of discharging through labyrinth passage does not generally contain acid mist.Also the basic anhydride that can place calcium oxide and so in air chamber are strengthened the deacidification effect.Said benefit acid lid 8 only supplies in particular cases to turn on, and pierces through Capsule with syringe and mend sour using.From figure, it can also be seen that, the tube wall that is positioned at the conduit 9 of inner cap 3 has recess, bottom and electric core just (or negative) end mutually the pure plumbous system wire column 22 of welding pass conduit 9, and bend as shown in Figure 3, in the embedding recess, the mouth of pipe of conduit 9 is shut with glue.The wire column 22 that bends is respectively lived with positive newel post 5 of the plumbous matter at enclosing cover center or negative wire 12 welderings.

The electricity core segment is by anodal 13, negative pole 15, and the electrode group that is entwined along center standpipe 25 together of the barrier film between the two poles of the earth 14.Wherein the positive and negative electrode currect collecting net forms a kind of thin and soft non-self-supporting structure by the high purity lead manufacturing, and scribbles lead plaster mixture (comprising plumbous oxide and a small amount of swelling agent etc.) in the above.Because currect collecting net is by the high purity lead manufacturing, thereby corrosion phenomenon and air displacement can reduce charging the time, prolong battery useful life.Barrier film 14 is a kind of paper made from the glass silk flosssilk wadding, and electrolyte (sulfuric acid) all is absorbed and takes in said barrier film and electrode, does not have spent acid when being inverted down to the battery open-ended and oozes.

Embodiment 2-double-tube type

Present embodiment is except that electric core segment adopts double-tube type electrode group, and other structures are all identical with embodiment 1.

Referring to Fig. 2, double-tube type electricity core adopts annular concentric both positive and negative polarity intussusception to form.Promptly embedded groove is at 1 the interior end respectively for the glass fiber tube 16 of two different-diameters and 17, and blended rubber is fixed (or being embedded at the end in the groove 1) when injection moulding.Filling glass silk flosssilk wadding or paper in the annular space between two sleeve pipes.Outer shroud cavity between groove 1 and glass fiber tube 17, and put into anodal pure stereotype grid 18 and the pure stereotype grid 19 of negative pole in the interior annular space chamber between center plastic standing tube 25 and the glass fiber tube 16 respectively, and under vibrating gently, pour into active material (lead powder) separately respectively.Interior ring platelet 20 and outer shroud platelet 21 cover the inner and outer rings cavity respectively.Reservation aperture in lead-in wire on the positive and negative electrode passes on ring platelet 20 and the outer shroud platelet 21 joins with positive and negative electrode wire column 22 respectively.

Embodiment 3-single tube type

The present embodiment structure is substantially the same manner as Example 2, but does not have inner ring glass fiber tube 16, and the soft ring shape of placement is coated with the cream negative pole in interior annular space chamber, to replace the annular negative pole in the shaped double tube electricity core.

Claims (9)

1, a kind of small sealed lead-acid battery, it comprises the housing that is surrounded by battery case 1, inner cap 3 and enclosing cover 2, and is arranged in the housing, the electric core by positive and negative electrode and barrier film constituted is characterized in that:

1) said housing is made of plastics;

2) the middle center plastic standing tube 25 that is provided with perpendicular to bottom land of battery case 1;

3) positive newel post 5 is positioned at the center of enclosing cover 2, and negative wire 12 is connected with bottom land.

4) said electric core is Gates's type (gentle matter is twined utmost point group) or cylinder structure.

2, storage battery according to claim 1, the electric core that it is characterized in that said tubular-shaped structures can be double-tube type or single tube type.

3, storage battery according to claim 2, it is characterized in that said double-tube type electricity core adopts annular concentric positive and negative electrode intussusception to form, the glass fiber tube 16 between the two poles of the earth and 17 respectively bonding or injection moulding in groove 1 at the end, and interior ring platelet 20 and outer shroud platelet 21 will be filled in respectively in the inner and outer rings cavity the active material lid tightly.

4, storage battery according to claim 2 is characterized in that said single tube type electricity core is coated with the cream negative pole by the anodal and soft ring shape of annular and forms, and a glass fiber tube is set between two utmost points, and is fixed on viscose glue or injection moulding at the interior end of groove.

5, storage battery according to claim 1, the edge of going to the bottom that it is characterized in that said battery case 1 join at the bottom of the iron 10, and fixing by plastics edge circle 11.

6, storage battery according to claim 1 is characterized in that the negative wire 12 of electric core passes center standpipe 25, and with 10 join at the bottom of the iron.

7, storage battery according to claim 1 is characterized in that the positive terminal of electric core joins with the positive newel post 5 at enclosing cover 2 centers by wire column 22.

8, storage battery according to claim 1 is characterized in that said plastics are polypropylene, polystyrene, nylon or ABS engineering plastics.

9, storage battery according to claim 8 is characterized in that said plastics are the ABS engineering plastics.

Images