CN100468830C - Battery where electrode rod is movable relative to cover - Google Patents

Battery where electrode rod is movable relative to cover Download PDF

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Publication number
CN100468830C
CN100468830C CNB2004800316456A CN200480031645A CN100468830C CN 100468830 C CN100468830 C CN 100468830C CN B2004800316456 A CNB2004800316456 A CN B2004800316456A CN 200480031645 A CN200480031645 A CN 200480031645A CN 100468830 C CN100468830 C CN 100468830C
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CN
China
Prior art keywords
pole
battery
resin
ring bodies
sealing ring
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Expired - Fee Related
Application number
CNB2004800316456A
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Chinese (zh)
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CN1875502A (en
Inventor
榎本朋之
足立淳一
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GS Yuasa International Ltd
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Yuasa Battery Corp
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Publication date
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Publication of CN1875502A publication Critical patent/CN1875502A/en
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Publication of CN100468830C publication Critical patent/CN100468830C/en
Expired - Fee Related legal-status Critical Current
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/184—Sealing members characterised by their shape or structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/193—Organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/571—Methods or arrangements for affording protection against corrosion; Selection of materials therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

A battery having a battery case, a cover for the battery case, a through-hole in the cover, an electrode rod inserted through the through-hole with a packing in between and vertically movable relative to the cover, and a resin ring body though which the electrode rod is inserted, that is placed between the electrode rod and the packing, and that is fixed to the electrode rod.

Description

The relative battery cover of pole is battery movably
Technical field
The present invention relates to movably battery of the relative battery cover of pole.
Background technology
The generating element of storage battery by pole plate group, electrolyte, take in pole plate group and electrolyte electrolysis tank (battery case), and battery cover constitute.The electrode group separately builds up stratiform by positive plate and negative plate with diaphragm paper.Be provided with the positive terminal and the negative terminal that are connected usefulness with external loading above the battery cover.For example, lead accumulator has following two kinds of methods, first kind be with the integrally formed terminal of battery cover on offer a through hole and then pole passed insertion wherein.At this moment, pole is connected with the pole plate group by the homopolarity connecting band, the front end of pole and the upper end of terminal is welded after the connection again.Second method is to offer a through hole on battery cover, and installing one sealing ring in through hole inserts pole and becomes terminal at this point via sealing ring.The first method custom is used on the automobile storage battery.Second method is used mainly as the storage battery in fork lifter or the golf battery vehicle, and this storage battery is subjected to up-down vibration when using often, so pole also requires to have the performance that can move up and down of corresponding vibration.Therefore, be closed in order to avoid electrolyte spills with sealing ring between the through hole offered of battery cover and the pole.Be closed like this and do not allow notion that electrolyte spills hereinafter referred to as " the close property of liquid ".Elastomers such as above-mentioned sealing ring use rubber prevent that connecting portion weares and teares because of vibration between battery cover and the pole.
The 9th figure represents to use and states second method and make pole with respect to battery cover schematic diagram of storage battery example movably on above-below direction.In the 9th figure, the 1st, battery cover, the 2nd, the through hole of offering on the battery cover 1, the 3rd, pole, the 4th, the homopolarity connecting band, the 5th, the pole plate group, the 6th, below the through hole, the 7th, the sealing ring of installing on the pole 3.The material of sealing ring 7 uses synthetic rubber usually.The 10th, electrolysis tank.
In lead accumulator, the shape of pole 3 and through hole 2 is columnar.In addition, in the 9th figure, be called " top " by through hole 2 from electrolysis tank 10 interior outside directions, the direction inside from the outside of electrolysis tank 10 is called " below ".Same term is also used in later in the present invention record.And below the through hole 6 the meaning be through hole 2 bottom.
Shown in the 9th figure, be equiped with the sealing ring that synthetic rubber is made on the pole 3, pole 3 inserts in the battery by through hole 2 then.Like this, utilize elastomeric resiliency characteristics, pole is fixed by the contact site of the inner peripheral surface of through hole 2 and sealing ring 7, has prevented that electrolyte from escaping to the electrolysis tank outside.Also have, because of having the property of cunning between sealing ring 7 and the pole 3, pole 3 is removable on above-below direction for battery cover.
The battery of this structure is existing the record on the patent disclosure 2001-176468 of Japanese documentation.In this patent documentation, also propose the sealing ring coupling part on pole surface is covered acid resisting material.It is the coating of main component that its acid resisting material can be enumerated with rubber, examples such as silicones and fluoride resin.But this acid resisting material that is only disclosed the coating shape by the method for acid resisting material covering pole is coated on the pole.The main points of this patent documentation are to cover pole with acid resisting material, have improved sealing thereby directly be close to because of pole and rubber seal, have prevented that electrolyte from entering mouth-sealed portion, have suppressed and the corrosion of electrode column sealing circle part.
The example of above-mentioned first method is that the front end of pole and the upper end of terminal weld, and this patent documentation patent disclosure in Japan goes up existing the record for 2002-No. 50327.In this example, the front end of pole and terminal upper end is with being welded and fused, so pole is irremovable for battery cover.From patent documentation, following content being disclosed: at the peripheral part as the metal sleeve of terminal the resin bushing of being close to shaping is arranged, form annular recessed portion in its periphery or bottom.When this sleeve is attached on the battery cover, the battery cover that corresponding above-mentioned annular recessed portion has resin to make.The ring-type slot part that constitutes in these annular recessed portion is pressed into elastic sealed body, relies on this elastic sealed body that resin bushing and resin battery cover are closely coincide and makes it to have air-tightness and the close property of liquid together.
Summary of the invention
In lead accumulator, pole 3 is made of the method for casting usually.As everyone knows, casting is to inject the lead that dissolves to solidify back formation pole 3 in the mold of making the pole shape.At this moment,, to smear the powder of some heat-insulating materials on the surface of mold, for example smear cork (コ Le Network) powder in order to prevent to dissolve lead because of mold cooling rapidly.So, this powder and when casting the bubble that takes place can form tiny concavo-convex on pole 3 surfaces that casting is made.Therefore, be installed between the inner peripheral surface of sealing ring 7 of pole 3 and pole 3 surfaces and also can form small slit, so electrolyte can enter into this slit.Add the vibration that awards battery, pole can move up and down with respect to sealing ring, and the electrolyte in the slit is just expanded along above-below direction like this.In the electrolyte of above-below direction expansion-part expansion up, finally spill into the outside of battery.Its result, the electrolyte that spills (dilute sulfuric acid) produces corrosion to the metal species of link, will cause such serious problems such as loose contact and broken string.
The coating that proposes the use acid resisting material in Japanese documentation patent disclosure 2001-176468 covers the sealing ring on pole surface.But, promptly use coating to cover fully concavo-convex on the landfill pole of pole.Its result can not obtain abundant fluid-tight problem with regard to having produced.
One of purpose of the present invention is inserted pole 3 via sealing ring 7 in the through hole of offering 2 on battery cover 1, and movably in the battery, improve the close property of liquid between pole (terminal) and the battery cover with respect to battery cover 1 above-below direction.
As the means that solve above-mentioned problem, the invention of the 1st among the present invention is a kind of battery, possesses: battery case; The lid of battery case; Covering the through hole of setting; Insert through hole, relatively battery cover pole moving up and down via sealing ring; And the insertion pole, between pole and sealing ring, and be fixed on resin ring bodies on the pole.
In the 1st invention of the present invention, the resin ring bodies is between pole and sealing ring.The resin ring bodies is different with pole, can smoothly process, so can guarantee the close property of sufficient liquid between resin ring bodies and the sealing ring.Moreover the resin ring bodies is close on the pole, and the close performance of liquid between pole and the resin ring bodies is fully protected.The example that the resin ring bodies is close on the pole has: with resin ring bodies and the integrally formed method of pole.Such method can make the concavo-convex of pole come landfill with resin, so can fully guarantee the close property of liquid between pole and the resin ring bodies.Other method also has: with the resin ring bodies with the fixing method of binding material.Can make the concavo-convex of pole come landfill like this, so can fully guarantee the close property of liquid between pole and the resin ring bodies with binding agent.Like this that resin ring bodies and pole is integrally formed method has: the pole with cast form inserts in the mold of ester moulding, then resin is injected the method for making the resin ring bodies in the mold, promptly " inserts and be shaped " method.
Between the battery terminal that pole can move up and down, following method is arranged usually by the terminal connector connection.So-called terminal connector is meant the conductor that couples together with electric means between several Battery packs.The two ends of terminal connector offer through hole, and screw inserts and is screwed in the nut that is embedded on the pole 3 in the hole.Like this, terminal connector just is connected with pole and has fixed.At this moment, in order to prevent corrosion pole 3 such as rainwater and terminal connector, intercell connector covers with covering and end cap.But, in above-mentioned the 1st invention, can the generation slit between the top that is fixed on the resin ring bodies 8 on the pole 3 and the terminal connector covering bottom.At this moment, enter the obducent inside of intercell connector because of not preventing rainwater fully, with regard to the problem that has pole to be corroded easily.
One of purpose of the present invention is exactly when the battery in the 1st invention has terminal connector and intercell connector covering, guarantees the close property of abundant liquid between resin ring bodies and the terminal connector covering.
Among the present invention the 2nd invention is: in the battery of the 1st invention, battery possesses terminal connector, intercell connector covering and annular seal ring, pole and intercell connector couple together with electric means, intercell connector covers with covering, and annular seal ring is clipped in above the resin ring bodies and between the intercell connector covering.
According to the 2nd invention, because of annular seal ring is clipped between resin ring bodies and the intercell connector covering, so can fully guarantee the close property of liquid between resin ring bodies and the intercell connector covering.
Pole is to covering movably battery, and when being subjected to judder up and down, sealing ring may skid off from through hole 2.Reason is: its structure is shown in the 9th figure, due to pole 3 too is projected into above the battery cover 1.Sealing ring 7 skids off from through hole 2 will produce the fluid-tight problem of forfeiture.
One of purpose of the present invention: also can suppress pole and too be projected into the top of battery cover and sealing ring is skidded off even be subjected to strong up-down vibration, prevent to lose the close property of its liquid.
Among the present invention the 3rd invention is: a kind of battery, it possesses: battery case, the lid of battery case, cover the through hole of offering, the pole that inserts through hole via sealing ring and can move up and down, and the retainer that is located on the pole and is positioned at the through hole downside and gives prominence to from the circumferential outside of through hole with respect to lid.
In the 3rd invention, retainer is outwards outstanding by the internal diameter of through hole.Even so battery is subjected to fierce up and down vibration, retainer is run into the through hole lower part reaches outside batteries with regard to the may command pole motion.Avoided consequently that pole is too outstanding to be caused sealing ring to come off and lose fluid-tight problem.
Description of drawings
The 1st figure is the schematic diagram of expression according to the lead accumulator of the embodiment of the invention 7.
To be expression enlarge schematic diagram (b) according to the schematic diagram (a) and the part of the portion of terminal major part of the lead accumulator of the embodiment of the invention 8 to the 2nd figure.
The 3rd figure is front view (a) and the major part vertical view (b) of expression according to the pole major part in the 1st inventive embodiments 1.
The 4th figure is the front view of expression according to the pole major part of the 1st inventive embodiments 2.
The 5th figure is the front view (a) according to the pole major part of the 1st inventive embodiments 3, the A of front view (a)-A profile (b), and expression has embedded the major part front view (c) of sealing ring state.
The 6th figure is the front view of expression according to the pole major part of the 3rd inventive embodiments 4.
The 7th figure is the front view of expression according to the pole major part of the 3rd inventive embodiments 5.
The 8th figure is the front view of expression according to the pole major part of the 2nd inventive embodiments 6.
The 9th figure is a schematic diagram of representing the major part of lead accumulator structure in the past.
Embodiment
The desirable battery shape of implementing this patent the 1st invention is as follows.Offer through hole on battery cover, pole inserts through hole via sealing ring.Sealing ring is not fixed on the pole, so the relative lid of pole can move up and down.Between sealing ring and pole, on the outer peripheral face of pole, be fixed with the resin ring bodies.
Like this, be fixed with the resin ring bodies on the pole, different with daub, what sealing ring contacted is not to be subjected to the small concavo-convex part that influences of pole (periphery of resin ring bodies) fully.As a result, different with daub, the close performance of the liquid between pole and the sealing ring accesses sufficient assurance.
The Perfected process that the resin ring bodies is fixed on the pole is as follows: as to make pole with casting method in advance, make the resin ring bodies in the mode that becomes one with pole with manufacturing process then.Use this method, may penetrate into after resin dissolves during because of shaping in the fine jog in pole surface, so can fully guarantee the close property of its liquid between the inner peripheral surface of the outer peripheral face of pole and resin ring bodies.The result just can prevent electrolyte that original battery structure the takes place phenomenon that leaks outside.
When pole and resin ring bodies were integrally formed, the shape of pole outer peripheral face can be both not had groove also not have projection, also can be groove or the projection that ring-type is set on outer peripheral face.After the latter was integrally formed, the contact area of pole outer peripheral face and resin ring bodies inner peripheral surface increased, so the close property of liquid is better.
The additive method of fixing resin ring bodies has the method for using adhesive on pole.At this moment after can being set to the good resin ring bodies that is shaped in advance on the pole, between the inner peripheral surface of resin ring bodies and pole outer peripheral face, inject adhesive.Just the resin ring bodies is fixed on the pole after the adhesive drying.At this moment, the pole surface is small concavo-convex also simultaneously by the adhesive landfill, so can fully guarantee the close property of liquid between the inner peripheral surface of the outer peripheral face of pole and resin ring bodies.
The peripheral shape of resin ring bodies is that simple cylindrical side is planar also passable, or it is also passable along the outer peripheral face of resin ring bodies slot part to be set.The latter can embed sealing ring its slot part and securing structure.So when pole was inserted through hole, the position of sealing ring can not misplace, insertion also is easier to.Simultaneously, the contact-making surface of sealing ring and resin ring bodies is 3, so the close property of the liquid between sealing ring and the resin ring bodies is more firm.Moreover, also have the advantage that the position for the sealing ring that moves up and down of pole misplaces hardly.
The material of resin ring bodies be need not go into the details, and the material with electrolyte resistance acidity is optimal.Polypropylene (PP) resin, polyethylene (PE) resin, acidic aqueous solution, alkaline aqueous solution and polarity organic solvent also are more stable to electrolyte, thus all can use at lead accumulator, on alkaline cell and the nonaqueous electrolyte battery (lithium ion battery etc.).
In addition, the material of sealing ring requires that also electrolyte is had stronger acid resistance.In order to improve the close property of liquid, it is then better that sealing ring has elasticity.The material of sealing ring has synthetic rubber, is more satisfactory material as chloroprene rubber etc.Sealing ring is then more satisfactory as forming the ring-type that the resin ring bodies is surrounded.
The quantity of the groove that is provided with on the resin ring bodies and the degree of depth, width, the diameter of sealing ring, width etc. belong to the item of suitably selecting design.
The desirable battery shape of implementing the 2nd invention is as follows.The ring-type slot part that is provided with on the resin ring bodies is mutually clamping structure with the ring-type slot part that covering is provided with below with annular seal ring with intercell connector.Above the resin ring bodies and the degree of depth and the width of the ring-type slot part that is provided with below of intercell connector covering, the shape of annular seal ring and size etc. belong to the item of suitably selecting design.
The desirable battery shape of implementing the 3rd invention is as follows: at the downside of through hole, pole is provided with than circumferentially outer outstanding retainer in the through hole.As the retainer of the 3rd invention, can enumerate the ring-type retainer that is provided with along the pole outer peripheral face.The ring-type retainer can be the shape of separating with the resin ring bodies, also can be and the integrally formed shape in resin ring bodies bottom.And retainer needs not be ring-type, also can obtain same effect in the projection of periphery setting more than at least 1 of pole.
(embodiment)
The present invention is described in further detail according to embodiment below.
＜embodiment 1 〉
The 3rd figure (a) expression (b) is the vertical view of major part according to the front view of the pole major part of the 1st inventive embodiments 1.In these figure, 3 expression poles, 8 are illustrated in the PP resin ring bodies that pole 3 outer peripheral faces form.At this moment, annular seal ring is enclosed within on the slotless resin ring bodies and inserts in the through hole of battery cover.
＜embodiment 2 〉
The 4th figure is the front view of expression according to the major part of the 1st inventive embodiments 2 poles.In this figure, the 3rd, pole, the 8th, the PP resin ring bodies that forms on pole 3 outer peripheral faces becomes slot part 9 along resin ring bodies 8 peripheral shape.At this moment, embed the sealing ring that is shaped as ring-type, insert in the through hole of lid again at slot part.
＜embodiment 3 〉
The 5th figure is according to the 1st inventive embodiments 3 poles.(a) being the front view of major part, (b) is the A-A profile of (a).(c) be to be illustrated in the front view that slot part is set on the resin ring-type and sealing ring is embedded state.Among the figure, the 3rd, pole, the 7th, the sealing ring that ring-type is shaped, the 8th, PP resin ring bodies, the 9th, the slot part that forms on the resin ring bodies.As shown in Figure 5, in embodiment 3, used the surface that the pole of groove is arranged.So resin flowed into slot part when the resin ring bodies was integrally formed.See that the result can understand: the contact area of the inner peripheral surface of resin ring bodies and pole outer peripheral face increases, and has further improved the close property of liquid.In embodiment 3, establish groove on the pole.Opposite, circular protrusion is set comes instead of grooves also can access same effect.Groove or protuberance not necessarily need ring-type in addition, and acyclic hole or projection are also passable.
As mentioned above, along pole 3 outer peripheral faces with resin ring bodies 8 integrally formed after, can guarantee the close property of good liquid.This is because sealing ring does not directly contact with the surface with small concavo-convex pole 3, but because of the cause that contacts with level and smooth resin face.
＜embodiment 4 〉
The 6th figure is the front view of expression according to the major part of the pole of the 3rd inventive embodiment 4.In this figure, 11 expression circular protrusions.Other structure member institute target numberings are the same with the 5th figure.
Shown in the 6th figure, in the present embodiment, the bottom that possesses the pole 3 of resin ring bodies 8 is provided with ring-type retainer 11.The external diameter of retainer 11 is designed to bigger than the internal diameter of through hole 2.So, during 3 pairs of battery cover up-down vibration of pole, following just can the generation that retainer is run into through hole 2 no longer toward covering the effect of stretching out.
Ring-type retainer 11 can be shaped when resin ring bodies 8 and pole 3 are integrally formed simultaneously.Or will also can in the pole 3 insertions ring-type retainer 11 that shaping is good in advance.At this moment, need make pole 3 and retainer 11 usefulness adhesives get up and the ring-type retainer is fixed on the pole.
＜embodiment 5 〉
The 7th figure is the front view of expression according to the major part of the pole of the 3rd inventive embodiment 5.In this figure, the 12nd, the frusto-conical annular retainer integrally formed with resin ring bodies 8.Other structure member institute target numberings are the same with the 5th figure.
In the 7th figure, bigger than the internal diameter of through hole 2 with the maximum gauge of the integrally formed conial ring shape retainer 12 of resin ring bodies 8.So can obtain effect similarly to Example 4.And retainer 12 and resin ring bodies 8 are integrally formed so also have a productivity ratio advantage of higher.
＜embodiment 6 〉
The 8th figure is the profile of expression according to the major part of the pole of the 2nd inventive embodiments 6, (b) is vertical view, (c) is front view.In these figure, 31 are provided in a side of the pre-buried type nut above the pole 3, and 91 are arranged on the ring-type slot part above the resin ring bodies 8, and the 71st, the annular seal ring of embedding ring-type slot part 91.The numbering of other structure members is identical with the 5th figure.
In the formation shown in the 8th figure, be provided with annular recessed portion 91 above the resin ring bodies 8, wherein embed annular seal ring 71.On the annular seal ring 71 by on the intercell connector covering pole 3 and the coupling part of intercell connector are closed with outside isolated.Its result, this structure both can suppress outside rainwater and enter storage battery, also can prevent the corrosion of pole 3 or intercell connector.
In the 8th figure, do not establish groove and do not establish yet integrally formed with it resin ring bodies 8 is arranged on the pole 3 of projection, still, the 2nd invention is not limited to this situation.Shown in the 5th figure (b), also the groove that is configured as ring-type can be set on pole.At this moment, even resin ring bodies 8 is pressed toward the below, the advantage that can not misplace is also arranged for resin ring bodies 8 because of the intercell connector covering.In addition, instead of grooves, and circular protrusion is set, also can obtain identical effect.And groove or projection not necessarily need ring-type, acyclic hole or projection is set also can.
＜embodiment 7 〉
The 1st figure is according to the embodiment of the invention 7.This figure is having embodiment 5 structures and using the schematic diagram of the storage battery of pole 3 shown in the 7th figure.3 pairs of battery covers 1 of pole can move up and down.Two slot parts 9 that are arranged on the outer peripheral face of resin ring bodies 8 are embedded in the sealing ring of being made by chloroprene resin 7.Pole 3 is used welding method, couples together with pole plate group 5 via homopolarity connecting band 4.Pole 3, homopolarity connecting band 4 and pole plate group 5 are inserted in the electrolysis tank 10.Be equiped with battery cover 1 on the electrolysis tank 10.Among the figure, the 6th, below the through hole, the 12nd, the frusto-conical annular retainer integrally formed with resin ring bodies 8.
See the 1st figure as can be known: sealing ring 7 keeps the close property of liquid with the inner face of through hole 2.And the outer peripheral face of the inner peripheral surface of resin ring bodies 8 and pole 3 is integrally formed is close to mutually, so this part also can be guaranteed the close property of liquid.Its result, even 3 pairs of battery cover 1 frequent vibration of pole, electrolyte can not drain to the outside yet.Also have,, also run into below the through hole 6, so can further not rise because of retainer 12 even pole 3 rises because of vibration.Therefore it is excessive to prevent that pole 3 from rising.
＜embodiment 8 〉
The 2nd figure is that expression is according to the schematic diagram (a) of the lead accumulator portion of terminal major part of the embodiment of the invention 8 with the expansion schematic diagram (b) of the part that encloses with dotted line (a).In these figure, the 13rd, intercell connector, the 14th, screw, the 15th, intercell connector covering, the 16th, the obducent end cap of intercell connector, the 7th, sealing ring, the 71st, annular seal ring, the 91st, the ring-type slot part that resin ring bodies 8 is provided with above, the 92nd, the ring-type slot part that intercell connector covering 15 is provided with below, the 31st, the embedded nut that pole 3 is provided with above.Other component parts are identical with the numbering of the 1st figure.
The pole 3 that uses in the present embodiment is to have increased the frusto-conical annular retainer integrally formed with resin ring bodies 8 on the pole 3 of the 8th figure illustrated embodiment 6.Screw 14 inserts the through hole that is arranged on the intercell connector 13, is screwed into then on the pole 3 in the pre-buried good nut 31.Like this, intercell connector 13 is fixed on the pole 3, uses intercell connector covering 15 that intercell connector 13 is covered simultaneously.Then, the peristome that the more obducent end cap 16 of intercell connector is embedded on the intercell connector covering 15.See the 2nd figure as can be known: clip the sealing ring of making by chloroprene resin 71 between the ring-type slot part 91 that ring-type slot part 92 that intercell connector covering 15 is provided with below and resin ring bodies 8 are provided with above.Like this, the coupling part between pole 3 and the intercell connector 13 just is closed and can prevents that rainwater etc. from entering the coupling part.Its result has prevented the corrosion to pole 3 and intercell connector 13.
Then, in order to specifically describe effect of the present invention, we have specially made totally 50 of lead accumulators with embodiment 7 structures shown in the 1st figure.The nominal voltage 2V of storage battery, rated capacity is C 5Be 175Ah.In order to compare, shown in the 9th figure, 50 only lead accumulators of installing sealing ring on pole have been made with original product.After in these lead accumulators, injecting the dilute sulfuric acid of regulation proportion and ormal weight, in electrolysis tank, change into, finish the making of lead accumulator.
Here so-called rated capacity is meant: the electric weight that from lead accumulator, takes out when under rated condition, discharging by manufacturer's regulation, represent with Ah usually.Rated capacity represents with C that also N represents time ratio when representing with CN.That is so-called C, 5For 175Ah is the meaning of " when needing 5 hours current discharge with discharge, the discharge capacity of taking out from battery is 175Ah ".
The lead accumulator that use is good has carried out vibration test by following condition.
Mode of vibration: single vibration
Vibrating stroke (Oscillation Amplitude 2 times, the amplitude of change): 3.4mm
Vibration number: 1200cpm (maximum acceleration of gravity 2.7G)
Time of vibration: 2 hours
After the vibration test, whether pole outstanding on the visual battery cover has electrolyte to spill on every side, confirms with litmus paper that simultaneously its result is as shown in table 1.
Table 1
Storage battery comprises thing The number of the lead accumulator of liquid leakage takes place in the vibration back With reference to figure
Product of the present invention 0/50 The 1st figure
Product originally 3/50 The 9th figure
As shown in table 1, in original product, what the inner peripheral surface contact portion of vibration back pole 3 outer peripheral faces and sealing ring 7 had that electrolyte spills is 3/50.On the contrary, what electrolyte was sewed in product of the present invention is 0/50, can determine that thus the present invention has positive effect.The outer peripheral face of the pole 3 of product of the present invention has formed resin ring bodies 8 with the insertion manufacturing process.So, guaranteed the close property of liquid between the outer peripheral face of pole 3 and the resin ring bodies 8.The surface that adds resin ring bodies 8 is level and smooth, and resin ring bodies 8 has been guaranteed the close property of liquid with the inner peripheral surface liquid of sealing ring 7.Its result has just obtained the invention effect shown in the table 1.
Moreover, concavo-convex small of product originally because of the surface of pole 3 has, sealing ring was impaired when pole moved up and down, and therefore caused fluid-tight reduction between pole 3 and the sealing ring 7.Product of the present invention is because of having installed sealing ring 7, so the damage of sealing ring 7 can be inhibited on level and smooth resin ring bodies 8.Its as a result the close property of liquid further be improved.In addition, there have good lubricity pole 3 to move up and down between the resin ring bodies 8 of product of the present invention and the sealing ring 7 to be also more smooth and easy.
In addition, originally product is seen pole 3 unusual outstanding phenomenons often in vibration test.In contrast to this, the pole 3 of product of the present invention rises to and just runs into below the through hole 26 frusto-conical annular retainer 12 behind the certain altitude.So pole 3 can up not stretched height again, its result does not see pole 3 unusual outstanding phenomenons in vibration test.After the test, we open the outer peripheral face that battery cover 1 has been observed sealing ring 7.
In an embodiment, as the method that forms the resin ring bodies at the outer peripheral face of pole, be illustrated inserting the method that is shaped, but the present invention is not limited only to this method.We illustrated: after also can adopting the cylindric resin ring bodies that the pole insertion is shaped in advance, adhesive is injected the good method of slit internal fixation between resin ring bodies and the pole again.Use this method, also can guarantee the close property of liquid between pole and the resin ring bodies, can obtain and insert the same effect that is shaped.And the present invention is not limited only to lead accumulator.Need not go into the details, the present invention can be suitable for any through hole of establishing on battery cover, inserts pole by sealing ring, all batteries that pole can move up and down for lid.
The specific example of above reference has been described in detail the present invention, for very clear and definite with the dealer: only otherwise breaking away from the spirit and scope of the present invention is to carry out various changes or correction to the present invention.
Present patent application is write as according to the Japanese patent application (patent application 2003-422965) that on December 19th, 2003 proposed, and wherein content is taken in as reference at this.
The possibility of industrial utilization
Just as described above in detail, can access at least a effect in following three effects according to the present invention. First is: establish through hole on the battery cover and insert pole by sealing ring, pole can move up and down for battery cover, and in this battery, the liquid-tight property between pole and the battery cover is significantly improved. Second is: when being connected by connection strap between battery and the battery, the covering and the slit between the resin ring bodies that cover on the connection strap are keeping liquid-tight property, thereby can prevent that like this rainwater etc. from entering the corrosion that pole and connection strap have partly prevented this part. The 3rd is: even be subject to the outside that fierce vibration pole up and down can transition reach battery yet, sealing ring is difficult to come off out from battery cover. Because above-mentioned reason is arranged, so the present invention is very high in industrial value.

Claims (3)

1. battery is characterized in that possessing:
Battery case;
The lid of described battery case;
Through hole in described lid setting;
Insert described through hole, described relatively battery cover pole moving up and down via sealing ring;
Insert described pole, between described pole and described sealing ring, and be fixed on resin ring bodies on the pole;
Intercell connector;
The intercell connector covering; And
Annular seal ring,
Described pole is electrically connected with described intercell connector,
Described intercell connector is covered with covering by described intercell connector,
Described annular seal ring is clipped in the top and described intercell connector of described resin ring bodies with between the covering.
2. battery as claimed in claim 1 is characterized in that:
Described resin ring bodies and described pole are configured as one.
3. battery as claimed in claim 1 is characterized in that:
Described resin ring bodies utilizes adhesive on described pole.
CNB2004800316456A 2003-12-19 2004-12-17 Battery where electrode rod is movable relative to cover Expired - Fee Related CN100468830C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003422965A JP2005183205A (en) 2003-12-19 2003-12-19 Storage battery
JP422965/2003 2003-12-19

Publications (2)

Publication Number Publication Date
CN1875502A CN1875502A (en) 2006-12-06
CN100468830C true CN100468830C (en) 2009-03-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004800316456A Expired - Fee Related CN100468830C (en) 2003-12-19 2004-12-17 Battery where electrode rod is movable relative to cover

Country Status (3)

Country Link
JP (1) JP2005183205A (en)
CN (1) CN100468830C (en)
WO (1) WO2005062401A1 (en)

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Publication number Priority date Publication date Assignee Title
CN101800295A (en) * 2010-04-16 2010-08-11 沧州荣泰新能源科技有限公司 Plastic shell of power lithium battery with blocking seal groove on upper cover
KR101326423B1 (en) 2012-09-18 2013-11-11 세방전지(주) Packing for battery terminal
CN106058082A (en) * 2016-07-22 2016-10-26 广州倬粤环保科技有限公司 Battery seal structure
CN110473992B (en) * 2019-08-09 2024-05-14 常州瑞德丰精密技术有限公司 Battery top cover with movable pole
CN114883710B (en) * 2022-06-12 2024-01-19 宇能电气有限公司 Assembling device and method for pole and cover plate of electric battery

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS392049Y1 (en) * 1963-03-07 1964-01-28
JPS415071Y1 (en) * 1964-12-29 1966-03-22
JPS5636057Y2 (en) * 1976-07-17 1981-08-25
DE2757568C2 (en) * 1977-12-23 1986-05-15 Varta Batterie Ag, 3000 Hannover Electric accumulator
JPS58137958A (en) * 1982-02-10 1983-08-16 Yuasa Battery Co Ltd Lead storage battery
JPS6114460U (en) * 1984-06-29 1986-01-28 新神戸電機株式会社 storage battery
JPS6335256U (en) * 1986-08-26 1988-03-07
JPH07335195A (en) * 1994-06-08 1995-12-22 Shin Kobe Electric Mach Co Ltd Connection rod cover

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CN1875502A (en) 2006-12-06
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