WO2009131228A1 - 蓄電池 - Google Patents
蓄電池 Download PDFInfo
- Publication number
- WO2009131228A1 WO2009131228A1 PCT/JP2009/058214 JP2009058214W WO2009131228A1 WO 2009131228 A1 WO2009131228 A1 WO 2009131228A1 JP 2009058214 W JP2009058214 W JP 2009058214W WO 2009131228 A1 WO2009131228 A1 WO 2009131228A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lid
- terminal
- storage battery
- bushing
- convex portion
- Prior art date
Links
- 238000003860 storage Methods 0.000 title claims abstract description 52
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 50
- 239000000057 synthetic resin Substances 0.000 claims abstract description 50
- 238000000465 moulding Methods 0.000 claims abstract description 30
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- 238000004519 manufacturing process Methods 0.000 abstract description 3
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- 238000003466 welding Methods 0.000 description 9
- 239000003792 electrolyte Substances 0.000 description 7
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- 239000000463 material Substances 0.000 description 6
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- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910000978 Pb alloy Inorganic materials 0.000 description 3
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- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 230000000149 penetrating effect Effects 0.000 description 1
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- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
Classifications
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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
- H01M50/147—Lids or covers
-
- 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical 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
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
-
- 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
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- 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
- H01M50/543—Terminals
- H01M50/562—Terminals characterised by the 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
- H01M50/564—Terminals characterised by their manufacturing process
-
- 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
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
-
- 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
- H01M50/572—Means for preventing undesired use or discharge
-
- 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
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
- H01M50/367—Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
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- 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
Definitions
- the present invention relates to a storage battery, and more particularly to a storage battery optimal for a vehicle such as a motorcycle or an automobile.
- the storage battery includes a battery case provided with a cell chamber and a synthetic resin lid that covers the upper opening of the battery case, and is welded by inserting a pole column extending from an electrode plate group accommodated in the cell chamber.
- a bushing is provided on the lid body, and a notch formed in a part of the upper surface of the lid body is provided with a plate terminal connected to the bushing (see, for example, Patent Document 1). .
- Japanese Unexamined Patent Publication No. 2003-77454 Japanese Unexamined Patent Publication No. 2009-43441 (see FIG. 3)
- the storage battery having the configuration of Patent Document 1 in addition to the work of welding the pole column to the bushing, the work of fixing the vertical plate portion at one end of the plate terminal by fitting it into the recess provided on the upper surface of the lid, Since it is necessary to perform welding by fitting a bushing to the through hole of the horizontal plate portion at the other end of the terminal, there is a problem that man-hours required for manufacturing increase.
- the applicant includes a bushing and a terminal on the lid body, and a conductive portion for connecting the terminal to the bushing is formed integrally with the bushing and the terminal to form a terminal portion.
- a lid part structure in which the part is embedded in the lid by insert molding has been proposed (for example, see Patent Document 2).
- Patent Document 2 when the temperature drops from a high temperature immediately after insert molding, the shrinkage rate on the back side of the lid in which the terminal portion is embedded and the shrinkage rate on the front side of the lid in which the terminal portion is exposed. Due to the difference, the front side of the lid is deformed into a convex shape and the back side of the lid is deformed into a concave shape, which makes it difficult to fit the lid and the battery case.
- the present invention has been made in view of the above-described situation, and an object of the present invention is to smoothly manufacture a storage battery by suppressing deformation of a lid body in which a terminal portion is insert-molded.
- the storage battery of the present invention includes a battery case provided with at least one cell chamber, and a synthetic resin lid that covers an upper opening of the battery case, and an upper surface of the lid. Is provided with an upper lid that is formed with a recessed portion that is recessed downward and that closes the recessed portion. The lower portion of each of the positive and negative terminals on one side of the lid and on both ends in the longitudinal direction of the side.
- a storage battery in which the upper part is protruded, and a protrusion is formed at a position where the upper part of each terminal is protruded, at a position near the position, or at both of the positions. It is a feature.
- the terminal portion It is possible to prevent the resin part on the back side of the lid body in which is embedded from being deformed in a concave shape and the resin part on the cover body side where the terminal portion is exposed from being deformed into a convex shape.
- the electrode chamber group is housed in the cell chamber, the lid body is provided with a bushing and a terminal inserted and welded with a pole column extending from the electrode plate group, and the terminal is connected to the bushing.
- the conductive portion may be integrally formed with the bushing and the terminal to form the terminal portion, and at least the lower portion of the bushing and the conductive portion may be embedded in the lid body by insert molding.
- the terminal part is accompanied by a decrease in temperature after insert molding.
- the resin part on the back side of the lid body in which the resin is embedded is easily deformed into a concave shape, and the resin part on the front side of the lid body where the terminal portion is exposed is easily deformed into a convex shape. Can do.
- a synthetic resin covering the edge of the pole column welded to the bushing and the edge of the bushing embedded in the lid may be applied.
- the upper lid that closes the concave portion on the upper surface of the lid body may be provided with a rib on the back surface, and the rib provided on the upper surface of the lid body may be provided so as to surround part or all of the periphery of the bushing. .
- insert molding to the lid of the lower portion of the conducting portion and the terminal can be realized without deforming the lid, and the rib on the back surface of the upper lid and the rib on the top surface of the lid Can be joined without any gap, so that it is possible to prevent the electrolyte that crawls from the gap between the pole column and the bushing from moving to the upper surface of the lid having the liquid inlet.
- the inner diameter of the upper portion of the bushing may be formed in a tapered shape smaller than the inner diameter of the lower portion, and the outer diameter on the lower end side of the pole column may be formed in a tapered shape larger than the outer diameter on the upper end side.
- One of the lid and the upper lid is provided with a locked portion, and the other is provided with a locking portion locked to the locked portion, and the locked portion includes a pair of holes.
- One of the holes is formed to a size that prevents the locking portion that locks the hole from moving in the horizontal direction, and the other hole is formed as a long hole that is long in the opposing direction of the pair of holes. May be.
- the pair of locking portions are locked to the pair of holes, and the lid body and the upper lid are moved closer to each other from the locked state.
- the attachment of the upper lid to the lid body is completed.
- the other hole is formed as a long hole that is long in the opposing direction of the pair of holes, the upper lid and the lid body can be positioned due to differences in shrinkage after molding, temperature changes after molding, changes over time, etc. Even if it is difficult, this can be satisfactorily absorbed by the long holes. In such a case, the distance in the facing direction of the pair of locking portions changes, but the positional relationship in the direction orthogonal to the facing direction of the pair of locking portions does not change.
- a long long hole can absorb the expansion and contraction of the upper lid.
- an adhesive is used in addition to heat welding.
- the protrusions are located on the first convex portion at the periphery of the portion where the upper portion of each terminal protrudes, on both sides in the longitudinal direction near the first convex portion, and more than the first convex portion.
- a second convex portion projecting upward and a third convex portion; and an opening into which the nut can be inserted is formed in the terminal at the second convex portion side end or the third convex portion side end, and the bottom surface of the opening May be lower than the upper surface of the second convex portion or the third convex portion.
- the first convex portion on each terminal, it is possible to suppress the front side portion of the lid in which the lower side portion of the terminal is embedded from being deformed into a convex shape and the back side portion from being deformed into a concave shape.
- an opening into which the nut can be inserted is formed at the second convex portion side end or the third convex portion side end, and the bottom surface of the opening is made lower than the upper surface of the second convex portion or the third convex portion.
- the inserted nut When the inserted nut can be prevented from falling, and the nut is placed on the upper surface of the second convex portion or the third convex portion and slid and dropped into the inside from the opening of the terminal, the nut is inserted by the above-described deformation. The problem that it becomes difficult to insert can also be avoided.
- the conductive portion of at least one of the terminal portions may not be provided with a part of the insert-molded synthetic resin layer, or may be provided with a partly thinner thickness than the other part.
- the synthetic resin layer is not partly provided as described above, or part of the thickness is made thinner than other parts and the conductive part is provided, overcurrent continues to flow and the conductive part generates heat. Even if it softens, the constituent material of the conduction part does not flow down from the softened part to the outside and does not flow into the storage battery, so that it is possible to prevent the occurrence of problems such as an internal short circuit of the storage battery.
- the portion where the synthetic resin layer of the conductive portion after the insert molding is not provided in part or the thinned portion is easier to cool than the other portions, the entire conductive portion is covered with synthetic resin so as to have the same thickness.
- the deformation of the lid is smaller than the case. Therefore, the deformation of the lid can be further suppressed by the synergistic effect by providing the projections of claim 1.
- the conductive portion may include at least one of an annular protrusion protruding outward, an annular recess, or a portion in which a part of the cross-sectional area is made smaller than the other portions.
- the conducting portion has at least one of an annular protrusion projecting outward, an annular depression, or a portion in which a part of the cross-sectional area is smaller than the other portion, it passes through the bushing interface. Can be difficult to move to the terminal.
- the conduction part has an annular depression or a part where a part of the cross-sectional area is smaller than the other part, the conduction part is made a depression or small when an overcurrent due to a short circuit flows. It can be blown early at the part.
- the deformation of the lid body is reduced by absorbing the strain, so that the synergistic effect by providing the protruding portion of claim 1 Therefore, the deformation of the lid can be further reduced.
- the back side of the lid in which the terminal portion is embedded as the temperature decreases after insert molding by providing a protrusion at the location where the upper part of each terminal is projected, at the location near the location, or at both locations Since the resin part of the cover part is concave and the resin part on the cover body side where the terminal part is exposed can be restrained from being deformed into a convex shape, the terminal part is restrained from being deformed by insert molding. Thus, the storage battery can be manufactured smoothly.
- FIG. 10 It is a top view before mounting
- a terminal part is shown, (a) is the perspective view, (b) is the side view, (c) is the bottom view.
- FIG. 10 shows the top cover of FIG.
- (a) is a plan view thereof, (b) is a bottom view thereof, (c) is a front view thereof, and (d) is a sectional view taken along the line CC in FIG. 16 (b).
- (A) is a left side view of a lid without a convex part
- (b) is a left side view of the lid of the present invention provided with a convex part. It is a top view of the lid which shows a 6th embodiment. It is a top view of the lid which shows a 7th embodiment.
- FIG. 1 shows a principal part of a perspective view of a lead storage battery (hereinafter simply referred to as a storage battery) particularly suitable for mounting on a motorcycle, but does not prevent the use of this storage battery for other purposes.
- the storage battery 10 (fifth embodiment) includes a synthetic resin battery case 1 having a rectangular shape in plan view and a rectangular shape in plan view for closing the opening above the battery case 1.
- a synthetic resin lid 2 (corresponding to the lid body 100 in FIGS. 10 to 19) and a synthetic resin auxiliary lid 9 having a rectangular shape in plan view covering the upper surface of the lid 2 are provided.
- the auxiliary lid 9 may not be located at a portion where the synthetic resin R is attached so as to cover the edge of the bushing 6 embedded in the lid 2.
- the lid 2 has notches 3 and 3 formed at two corners on both sides of one of the four corners, and a positive electrode and a negative electrode are formed at the notches 3 and 3, respectively.
- Terminals 4 and 4 are respectively arranged (in FIG. 1, the right side is a positive terminal and the left side is a negative terminal) so that the top plate portions 4A and 4A of the terminals 4 and 4 do not protrude above the upper end 2A of the lid 2. ing.
- an uneven portion 2E is provided.
- the uneven portion 2E has a front surface 2E1 protruding forward from the front plate portions 4B and 4B of the terminals 4 and 4, and an upper surface 2E2 protruding upward from the top plate portions 4A and 4A of the terminals 4 and 4. In this way, a short circuit caused by a metal piece bridging between the terminals 4 and 4 is prevented.
- FIG. 2 shows a plan view in which the auxiliary lid 9 in FIG. 1 is removed in order to explain the planar shape of the lid 2
- FIG. 3 shows the structure inside the lid 2 of the terminals 4, 4.
- a cross-sectional view of a portion including one terminal 4 is shown (in FIG. 2, the exhaust valve is denoted by reference numeral 11, but is omitted in FIG. 1).
- a bushing 6 to which a pole column 5 extending from an electrode plate group (not shown) is inserted and welded to both sides of the long side of the top plate portion 2D of the lid 2 is connected to the bottom portion 4F of the terminal 4 and the connection.
- the insert molding is performed together with the conductive portion 7 connected to the upper portion 6A of the bushing 6 in the portion 4G.
- the conducting portion 7 for connecting the terminal 4 to the bushing 6 is integrally formed with the terminal 4 and the bushing 6 by lead or lead alloy to form the terminal portion 8.
- symbol 5A of FIG. 3 is a strap connected to the lower end of the pole column 5 of a positive electrode or a negative electrode by integrating the some positive electrode plate or several negative electrode plate which comprises an electrode plate group (not shown), respectively.
- . 3 indicates a welded portion in which the bushing 6 and the pole column 5 are welded by a burner or the like.
- auxiliary lid which covers the lid 2 so as to cover the upper portion 6A of the bushing 6 exposed on the top plate portion 2D of the lid 2 and the pole column 5. It is rectangular. As shown in FIGS. 1 to 3, the top plate portion 2D of the lid 2 is located at a position slightly lower than the upper end 2A of the rectangular vertical plate portion 2C raised upward from the bottom surface 2B. An annular rib 2R that is substantially parallel to the vertical plate portion 2C is formed at the periphery, and the rib 2R surrounds the arc portion 2r by surrounding the upper portion 6A of the bushing 6 and the exposed portion of the pole column 5 described above. Forming.
- the auxiliary lid 9 has a skirt portion 9S formed on the outer peripheral edge thereof in a groove 2M formed between the rib 2R and the vertical plate portion 2C, and the rib 2R and the arc portion.
- the rib 9R and the arc portion 9r formed at the position corresponding to 2r are brought into contact with and welded to the rib 2R and the arc portion 2r in a molten state, so that the rib 2R and the arc portion 2r, the rib 9R and the arc portion 9r, The inner space K surrounded by is sealed.
- the arc portion 2r and the arc portion 9r do not necessarily have an arc shape.
- the conducting portion 7 includes a first horizontal plate portion 7A extending in a horizontal direction from the lower portion 6B of the bushing 6, a vertical plate portion 7B hanging downward from an end portion of the first horizontal plate portion 7A, and a vertical plate portion 7B.
- the second horizontal plate portion 7C extends in the horizontal direction from the lower end of the plate portion 7B and is connected to the bottom portion 4F of the terminal 4 and the connecting portion 4G.
- the bushing 6 is provided with a plurality of annular protrusions 6T along the vertical direction outside the lower portion 6B, and the first horizontal plate part 7A of the conducting part 7 is provided with a protrusion 7T. .
- FIGS. 10 and 11 show the lid 100 of the lead storage battery of the first embodiment.
- the lead storage battery according to the first embodiment is based on the storage battery 10 shown in FIGS. 1 to 3 described above, and has a feature in the lid body 100 corresponding to the lid 2 in FIGS. ing.
- FIG. 10 shows a state in which an upper lid 15 described later is attached.
- the upper lid 15 corresponds to the auxiliary lid 9 in FIGS.
- FIG. 11 the state before mounting
- the lid body 100 is formed of a synthetic resin in a rectangular shape in plan view and covers an upper opening of a battery case (corresponding to the battery case 1 in FIGS. 1 to 3) having a plurality of partitioned cell chambers. It is.
- a lead storage battery (corresponding to the storage battery 10 in FIGS. 1 to 3) provided with the lid 100 is particularly suitable for mounting on a vehicle such as a motorcycle or an automobile, but may also be used for other purposes. it can. 10 and 11, the long side direction of the lid 100 is the left-right direction, and the direction orthogonal to the long side direction is the front-rear direction.
- the lid 100 has a pair of left and right terminals 20, 30 (corresponding to the terminals 4 in FIGS. 1 to 3) on one long side (front end in the front-rear direction).
- the first lid portion 100A is provided so as to be positioned at both ends (left and right direction), and the second lid portion 100B having an upper surface higher than the upper surface of the first lid portion 100A.
- a recess 14 that is recessed downward is formed on the upper surface of the second lid portion 100B.
- the concave portion 14 is formed over a wide range from the end on the first lid portion 100A side of the upper surface of the second lid portion 100B to a position slightly closer to the rear side than a position halved in the front-rear direction. .
- the flat surface 100F without the recessed part 14 on the other long side (front-rear direction rear end side) it can be used as a space for attaching a seal or the like with a model number or the like on the flat surface 100F. I am doing so.
- the flat surface 100F on the upper surface of the lid 100 can be used as a space for sticking a sticker, and if a reference symbol for checking various data is written on the sticker, a process before the upper lid 15 is attached.
- Data for example, data at the time of liquid injection, can be collated based on the above reference numerals (in the past, such a seal is applied to the surface of the upper lid after the upper lid is mounted, that is, after the liquid is injected and the upper lid is mounted. Therefore, even when such a reference code is written on the seal, the data at the time of liquid injection could not be collated based on the reference code).
- the left terminal 20 is a negative terminal
- the right terminal 30 is a positive terminal.
- the concave portion 14 has a bottom wall 14A forming a bottom portion, and a vertical wall 14B raised upward from the outer peripheral edge of the bottom wall 14A. Further, inside the concave portion 14, an annular projecting portion 14 ⁇ / b> C projecting upward is provided at a portion of the bottom wall 14 ⁇ / b> A located inside the vertical wall 14 ⁇ / b> B. The upper surface of the projecting portion 14C is lower than the height of the vertical wall 14B, but it does not necessarily have to be the same height at any position.
- the outer peripheral edge 15G of the upper lid 15 is a groove portion. 14M can be covered so that the upper surface of the upper cover 15 and the flat surface 100F of the cover body 100 may be on substantially the same plane.
- the bottom wall 14A on the inner side of the projecting portion 14C is provided with exhaust holes 14D for exhausting gases from the plurality of (six in the figure) cell chambers. Yes. Note that the number of cell chambers may not be six.
- FIGS. 10, 11 and 16 (a), (b), (c), (d), in order to collect the gas exhausted from the plurality of exhaust holes 14D to the specific cell chamber side.
- an upper lid 15 that closes the inside of the protruding portion 14C is provided.
- the protrusion 14C is formed in a substantially rectangular shape in a plan view of FIG.
- the bottom wall 14A is formed on an inclined surface positioned downward toward the exhaust hole 14D, and the electrolyte solution escaped from each exhaust hole 14D can be returned to the corresponding exhaust hole 14D side. It is designed to function as a possible guide surface. Furthermore, it is provided with extending portions 14E and 14E that extend inward from the opposing positions of the projecting portion 14C and form gaps located between adjacent exhaust holes 14D, and only gas exhausted from the exhaust holes 14D is provided. The inside of the projecting portion 14C is freely moved so that the electrolytic solution escaped from the exhaust hole 14D can be prevented as much as possible from moving to the other adjacent exhaust hole 14D.
- a pair of left and right cylinders that are welded by inserting pole columns (not shown) for taking out power, extending from the battery case, into the recess 14.
- Bushings 16, 17 (corresponding to the bushing 6 in FIG. 3) are embedded.
- the bushings 16 and 17 are connected to the lower side of the terminals 20 and 30 juxtaposed in the horizontal direction with the bushings 16 and 17 by a conducting portion (corresponding to the conducting portion 7 in FIG. 3).
- the terminals 20 and 30, the bushings 16 and 17, and the conductive portion are integrally formed of lead or a lead alloy to form a terminal portion (corresponding to the terminal portion 8 in FIG. 3). It is buried.
- the upper lid 15 is formed of a synthetic resin, and as shown in FIG. 16B, the joint portion 15C having the same outer shape as the projection portion 14C joined to the projection portion 14C, and the projection portion 14C and the vertical portion.
- the outer peripheral edge 15G that covers the annular groove portion 14M formed between the wall 14B and the lower end of the joint portion 15C of the upper lid 15 is in a molten state, and then matched with the protruding portion 14C of the concave portion 14 to It can be melted and integrated.
- the joint portion 15C also includes portions corresponding to the pair of extending portions 14E and 14E provided at five locations of the projecting portion 14C, and these are also referred to as the joint portion 15C.
- the material of the lid 100 and the upper lid 15 is preferably a thermoplastic resin such as polypropylene resin, but may be other synthetic resins.
- a thermoplastic resin such as polypropylene resin
- the lid 100 will be described in detail.
- the terminals 20, 30 A protrusion 13 whose upper surface 13a is higher than the upper surface 13R of the first lid portion 100A is formed at a location where the lower portion is embedded and the upper portion is protruded.
- a pair of protrusions extending from the two longitudinal positions on one side of the terminal side of the second lid portion 100B to the end (front end in the front-rear direction) of the lid body 100 and projecting from the upper surface of the first lid portion 100A.
- Extending portions 100C and 100D are formed, and the pair of extending portions 100C and 100D and the second lid portion 100B located at both ends in the longitudinal direction (left and right direction) of one side.
- the projection 13 is formed on the first lid portion 100A surrounded by the vertical wall 14B, and the terminals 20 and 30 are integrally formed on the projection 13.
- the protrusion 13 is positioned on both sides in the longitudinal direction of one side of the first convex portion 13A and the first convex portion 13A in which the lower ends of the terminals 20 and 30 are embedded, and the upper surface of the first convex portion 13A
- the second convex portion 13B having an upper surface 13b protruding upward from 13a and the third convex portion 13C having the upper surface 13c are inserted, and the nut 140 of the terminal 20 is inserted as shown in FIG. 13 (d).
- Opening 20H is formed at the end of the third convex portion 13C (the same opening 30H of the terminal 30 is formed at the end of the second convex portion 13B), and the bottom surface 20G of the opening 20H is the upper surface of the third convex portion 13C. 13c (the bottom surface 30G of the opening 30H is lower than the upper surface 13b of the second convex portion 13B).
- the first convex portion 13A, the second convex portion 13B, and the third convex portion 13C are formed so as to be integrated with the vertical wall 14B of the lid 100.
- the convex portions 13A, 13B, and 13C are provided at one location where the lower portions of the terminals 20 and 30 are embedded, and at two locations adjacent to the location (locations in the vicinity of the location). It can suppress that the front side part of the body 100 deform
- the terminal 4 has a rectangular top plate portion 4A (the top plate portion of FIG. 13B). 20A and 30A), and the front plate portion 4B (see FIG. 13B) that hangs downward from three sides other than the right side in the front view of the four sides of the top plate portion 4A.
- the rear plate portion 4C correspond to the rear plate portion 20C in FIG. 13C, the rear plate portion 30C in FIG. 13A
- the left plate portion 4D correspond to FIG. c
- a left plate portion 20D which corresponds to the left plate portion 30D in FIG.
- a through hole 4K1 through hole 30a in FIG. 13B, FIG. 13D for passing a bolt (corresponding to the bolt 150 in FIG. 13C) is passed.
- 4K2 corresponding to the through holes 20b and 30b in FIG. 13B
- the right plate portion 4E opening 30H in FIG. 13B and FIG. d
- an opening 4J for inserting a nut corresponding to the nut 140 in FIG. 13D) into the terminal 4 (the openings 30H, 20H). Corresponding to) is formed.
- the through-holes 4K1, 4K2 and the opening 4J are formed because the storage battery and the external lead are arranged in accordance with the mounting form of the storage battery according to the connection position of the external lead wire for connecting to the electrical equipment of the vehicle. This is because the nut is inserted through the opening 4J and the bolt with the external lead wire is inserted through any of the through holes 4K1 and 4K2 and screwed so that the wire is in an optimal connection form.
- the shape of the terminal 4 described here is an example, and may have another shape.
- the terminals 20 and 30 are formed in a rectangular top plate portion 20A and 30A and in the front view of the four sides of the top plate portions 20A and 30A.
- Front plate portions 20B, 30B hanging downward from three sides other than the right side, rear plate portions 20C, 30C, left plate portions 20D, 30D, top plate portions 20A, 30A and front plate
- the parts 20B and 30B are formed with through holes 20a and 20b and 30a and 30b for allowing a bolt 150 (shown in FIG. 13C) to pass therethrough.
- FIG. 13C a bolt 150
- the nut 140 can be fixed to the terminal 20 with the bolt 150 by screwing the tip of the bolt 150 penetrating into the nut 140 into the terminal 20. Then, between the bolt 150 and the nut 140, an external lead wire (wire that can be connected to an on-vehicle electrical component or the like) or the like is sandwiched and fixed with the top plate portion 20A interposed. Yes.
- the bolt 150 can be inserted into the terminals 20, 30 from either the upper side or the front side.
- the openings 20H and 30H into which the nut 140 can be inserted are formed in the terminal 20 or 30 at the third convex portion 13C side end or the second convex portion 13B side end, and the bottom surfaces 20G and 30G of the openings are formed.
- a nut 140 is disposed on the upper surface 13c of the third convex portion 13C as shown in FIG. It can be slid and inserted into the terminal 20 through the opening 20H.
- the nut 140 inserted into the terminal 20 is prevented from falling because the bottom surface 20G of the opening 20H of the terminal 20 is lower than the upper surface 13c of the third convex portion 13C.
- FIG. 13D only the left terminal 20 is shown, but the right terminal 30 is the same.
- the nut 140 is inserted into the terminals 20 and 30 from the right side.
- the second convex portion 13B and the third convex portion 13C provided in the left and right respectively are arranged so as to have an opposite positional relationship in the left-right direction.
- the upper surface 13b of the said 2nd convex part 13B and the upper surface 13c of the 3rd convex part 13C are set to the same height, you may make it different.
- the nut 140 has a rectangular parallelepiped shape, and the nut 140 can be stably moved and guided while being in surface contact with the upper surface 13b of the second convex portion 13B or the upper surface 13c of the third convex portion 13C which is a flat surface. There is.
- FIG. 13 (d) shows a state before the nut 140 is inserted into the left terminal 20
- FIG. 13 (c) shows that the nut 140 is inserted into the left terminal 20 and then the inserted nut 140 is inserted into the bolt 150.
- the state fixed in the terminal 20 is shown.
- the lower end 100Z of the lid body 100 can hardly be bent on the terminal 20 side, and as described above, after inserting the nut 140 into the left terminal 20, for example, It can be seen that the inserted nut 140 can be smoothly fixed in the terminal 20 with the bolt 150.
- the second and third convex portions 13B and 13C are difficult to insert due to the above-described deformation when the nut is arranged on the upper surface and slid and inserted into the terminal opening through the opening of the terminal.
- the height dimension and the formation range in plan view may be determined with respect to the dimension L in FIG. 17B, and the present invention is not limited to that shown in the figure.
- the shapes of the three convex portions 13A, 13B, and 13C are not limited to those shown in the drawing.
- the convex portions 13A, 13B, and 13C do not necessarily have to be all provided, and if the at least one convex portion is provided, the effect of the present invention is achieved.
- the effect of suppressing deformation of the lid body 100 can be enhanced by performing the process as shown in FIG. 18 (sixth embodiment), but FIG. 19 (seventh embodiment).
- 13A, the second convex portion 13B, and the third convex portion 13C are merely provided to suppress the deformation of the lid 100 (in this case, the guide path does not include the left-right direction guide portion 19c, and the front-rear direction guide portion). Only 19d is provided, but details of the guide route will be described later).
- the bushing 6 and the pole column 5 are formed such that the inner diameter of the upper portion 6A of the bushing 6 is smaller than the inner diameter of the lower portion 6B, and the outer diameter on the lower end side of the pole column 5 is the upper end.
- the tapered shape larger than the outer diameter on the side, not only the pole column 5 can be easily inserted into the bushing 6, but also a positional shift when the pole column 5 is inserted into the bushing 6 is hardly caused.
- the gap between the upper portion 6A of the bushing 6 and the pole column 5 is reduced, and this portion can be easily welded, and the electrolyte that crawls up along the surface of the pole column 5 is transferred to the upper portion 6A of the bushing 6.
- the pole 5 can be smoothly inserted into the bushing 6 due to the effect of suppressing deformation described above. Further, as shown in FIG.
- the synthetic resin R is preferably injected before the rib 9R and the rib 2R are welded and before the arc portion 9r and the arc portion 2r are welded. However, the synthetic resin R is opened in a part of the auxiliary lid 9 corresponding to the space K. And the synthetic resin R may be injected from the opening after the above-described welding.
- the synthetic resin R is preferably a thermosetting resin such as an epoxy resin.
- the above-described effect of suppressing deformation is also exhibited in the following points (second embodiment). That is, the lower portion 6B of the terminal portion 8 excluding the upper portion 6A of the bushing 6 and the conductive portion 7 are embedded in the lid 2 by insert molding, and the conductive portion 7 is below the bushing 6.
- a first horizontal plate portion 7A extending in the horizontal direction from the side portion 6B, a vertical plate portion 7B hanging downward from an end portion of the first horizontal plate portion 7A, and a horizontal plate extending from the lower end of the vertical plate portion 7B. It consists of a bottom part 4F of the terminal 4 and a second horizontal plate part 7C connected to the connecting part 4G.
- the vertical plate portion 7B of the conducting portion 7 bulges from the vertical plate portion 2C of the lid 2 toward the terminals 4 and 4 and only the upper portion is covered with the synthetic resin layer.
- the bulging portions 2F and 2F are formed (in FIG. 3, the bulging portions 2F and 2F cover the entire vertical plate portion 7B of the conducting portion 7).
- the vertical plate portion 7B have the portion 2f where the synthetic resin layer is not provided and forming the bulging portions 2F and 2F, not only can the heat release when the current taken out from the storage battery is large be promoted, When a large current flows due to a short circuit or the like and sudden heat is generated, even if the conductive portion 7 is softened or melted by providing the portion 2f, lead or lead alloy is eluted from the portion 2f to the outside. This prevents the battery from flowing into the storage battery and prevents the occurrence of a problem such as an internal short circuit of the storage battery.
- the portion 2f of the conductive portion 7 after the insert molding is easier to cool than the other portions, so that the lid is more than the case where the entire conductive portion 7 is covered with the synthetic resin.
- the deformation of 2 becomes smaller.
- the portion 2f is present so as not to provide a part of the synthetic resin layer.
- the synthetic resin layer may be formed thinly on the portion 2f.
- the deformation of the lid is smaller than when the entire conductive portion 7 is covered with the synthetic resin, but the protrusion 13 The effectiveness of providing is the same.
- the synthetic resin layer may have the portion 2f so as not to be provided in the horizontal direction, not in the vertical direction, or to be formed thin in the horizontal direction. Further, in FIG. 8, the portion 2f is provided on both the positive electrode side and the negative electrode side. However, the effect of the present invention can be obtained only by providing the portion 2f only on either the positive electrode side or the negative electrode side.
- the portion 7b in which the cross-sectional area of the vertical plate portion 7B of the conductive portion 7 is partially reduced, the constituent material of the conductive portion 7 is changed.
- the portion 7b may be melted to cut off the energization.
- the portion 7 b is provided below the vertical plate portion 7 ⁇ / b> B.
- the lead 7 melted by melting the portion 7 b is dropped between the vertical plate portion 7 ⁇ / b> B and the terminals 4 and 4. Considering this, it is preferable to provide it above the vertical plate portion 7B.
- the portion 7b of the conducting portion 7 after the insert molding absorbs distortion and the deformation of the lid 2 is suppressed.
- the terminal portion 7 is embedded in the lid 2 by insert molding. The effectiveness of the effect of suppressing the deformation of the lid 2 is as described above.
- the creeping distance of the conductive portion 7 can be increased by providing the conductive portion 7 with the protruding portion 7T, but an annular hollow portion may be used instead of the protruding portion 7T. .
- an annular hollow portion instead of the projecting portion 7T, the effect of the portion 7b in which the cross-sectional area of the vertical plate portion 7B described above is partially reduced can also be achieved.
- this portion 7b is fused here. This is for cutting off the energization.
- the protruding portion is formed on the first horizontal plate portion 7A embedded in the synthetic resin layer. 7T (or the depression) may be provided separately. Moreover, it may replace with a hollow part and a notch and a recessed part may be sufficient. Thus, by making it a hollow part, a notch, and a recessed part, a creeping distance can be kept long, reducing the quantity of the constituent material of the conduction
- the protruding portion 7T (or the recessed portion) is removed. Providing it in the vicinity of the boundary between the first horizontal plate portion 7A and the vertical plate portion 7B is preferable because the movement of the electrolytic solution can be suppressed in the initial stage.
- the projections 7T are provided on the first horizontal plate portion 7A.
- the bulging portion 2F is formed to hang downward from the upper portion of the vertical plate portion 7B, the vertical plate portion 7B inside the bulging portion 2F. You may provide in the upper part of. Further, in FIG.
- the protrusions 7T are provided at two places, but may be one or more, and by providing notches or recesses at different positions on the outer peripheral edge of each of the plurality of protrusions 7T. Further, the creepage distance may be kept long by reducing the amount of the constituent material of the conductive portion 7.
- the synthetic resin layer is not provided so that the upper surface of the second horizontal plate portion 7C is connected to the portion 2f. However, the synthetic resin layer may be provided on the upper surface of the second horizontal plate portion 7C. Good.
- the third embodiment shown in FIGS. 4 and 5 is characterized in that a part of the rib 2R provided with the arc portion 2r is omitted.
- the surface of the synthetic resin R that covers and covers the edge of the bushing 6 embedded in the lid is connected to the outside.
- the auxiliary lid 9 is attached to the synthetic resin R that covers the edge of the bushing 6 embedded in the lid, the exhaust valve 11, and the exhaust port provided for each cell.
- the auxiliary lid is not provided on the portion to which the synthetic resin R is applied, as shown in FIG. 6 (fourth embodiment). Thus, the synthetic resin R may be exposed.
- the outer diameter of the protrusion 6T1 closest to the space K is made larger than the outer diameter of the other protrusions.
- the surface of the first horizontal plate portion 7A (a surface parallel to the top plate portion 4A of the terminal 4) does not necessarily have to be horizontal, and may bulge into an arc shape or an elliptical arc shape.
- Such a shape is not limited to the surface of the first horizontal plate portion 7A, but the surface of the vertical plate portion 7B (surface parallel to the front plate portion 4B of the terminal 4) or the surface of the second horizontal plate portion 7C (the top of the terminal 4). The same applies to the plane parallel to the plate portion 4A.
- the terminal portion 8 is integrally formed with an anchor portion 4T that exerts an anchor effect at the time of insert molding at the lower end.
- the lower end of the terminal 4 may be integrated by welding or the like.
- the anchor portion 4T is integrally formed at the lower end of the terminal 4
- the anchor portion 4T is integrally formed at the lower end of the connecting portion 4G extending downward from the flat bottom portion 4F. This is achieved by making the dimension in plan view larger than the dimension of the connecting portion 4G.
- the shape of the anchor portion 4T in plan view is preferably an ellipse, but the shape is not limited as long as it satisfies the above dimensions.
- FIG. 9A is a perspective view of the terminal portion 8
- FIG. 9B is a side view thereof
- FIG. 9C is a bottom view thereof.
- the terminal 4 is integrally formed at the lower end with an anchor portion 4T that exerts an anchor effect at the time of insert molding, but may be separately formed and integrated with the lower end of the terminal 4 by welding or the like.
- the anchor portion 4T is integrally formed at the lower end of a connecting portion 4G that integrally extends downward from a flat bottom portion 4F that is integrally formed at the lower end of the terminal 4, and its plan view dimension is larger than the size of the connecting portion 4G. I try to get bigger.
- 9 (b) and 9 (c) the bottom surface of the anchor portion 4T is flat.
- the mold for fixing the terminal portion 8 has a convex portion. If it has, the recessed part which extends from the center of the bottom face of the anchor part 4T to the connecting part 4G may be provided and may be fitted to each other, and a mold for fixing the terminal part 8 similarly. If it has a recessed part, you may make it provide a cone-shaped convex part which the center protrudes from the bottom face of the anchor part 4T, and you may make it fit mutually.
- the anchor portion 4T is an ellipse, but may not be an ellipse. Thereby, since the anchor part 4T, the conduction
- the second exhaust hole 14F is provided in the bottom wall 14A.
- the second exhaust hole 14F is provided with a porous filter and a valve (not shown) for the purpose of explosion prevention, prevention of backflow of gas from the outside, and adjustment of internal pressure.
- a second exhaust hole 14F different from the exhaust hole 14D formed in the bottom wall 14A is provided in the bottom wall 14A provided with the fourth exhaust hole 14D from the left in FIG. 1, and the cell provided with the exhaust hole 14D is provided.
- the first guide path 19 (see FIGS. 14A and 15) formed by joining the projecting portion 14T shown in the figure, and the space between one end of the first guide path 19 and the discharge port 14K.
- the first guide path 19 includes an upper guide portion 19A for moving the gas from the second exhaust hole 14F upward, It is formed by a horizontal guide part 19B for moving the gas from the upper guide part 19A in the horizontal direction and a lower guide part 19C for moving the gas from the horizontal guide part 19B downward.
- the gas from the lower guide part 19C is Delivery to the second guide route 101 is performed.
- the upper guide portion 19A guides the gas from the second exhaust hole 14F up to a predetermined height above the cylindrical first upper guide portion 19a and the gas from the first upper guide portion 19a further upward. Therefore, a cylindrical second upper guide portion 19b having a larger diameter than the first upper guide portion 19a is provided. Further, the horizontal guide portion 19B includes a left-right direction guide portion 19c that moves the gas to one side in the left-right width direction (right side in FIG. 11) of the lid 100, and a gas guided to the end of the left-right direction guide portion 19c in the guide direction.
- the second guide path 101 has a discharge port 14K formed in the vertical wall 14B by inserting a rod (a hole forming rod) into the mold, and the front of the lower guide portion 19C from the vertical wall 14B.
- a tunnel-shaped through hole 101A is formed between the side wall 19h and the side wall 19h.
- the electrolyte mist or gas discharged from the second exhaust hole 14F passes through the upper guide portion 19A that moves upward, and the valve and the porous filter. Is moved to the horizontal guide portion 19B that moves in the horizontal direction, passes through the lower guide portion 19C that moves further downward, is transferred to the second guide path 101, and is then discharged to the outside through the discharge port 14K. It will be.
- the level in the height direction of the discharge port 14K becomes lower than the level in the height direction of the upper lid 15, and further Since the gas reaches the discharge port 14K via the two guide paths 101, there is an advantage that the gas discharged from the discharge port 14K can hardly reach the vicinity of the terminals 20 and 30 along the periphery of the upper lid 15 or the lid body 100.
- the guide path 18 that guides the gas discharged from the second exhaust hole 14F to the discharge port 14K, bypassing the lower side of the groove portion 14M, the level in the height direction of the discharge port 14K.
- the groove portion 14M and the guide path 18 are not connected, and the discharge port 14K can be connected only to the guide path 18. it can.
- a guide is provided by applying pressurized air into the groove portion 14M with the space between the inner side surface 14b of the vertical wall 14B and the outer peripheral surface 15N of the upper lid 15 shown in FIG.
- the joining state of the projection 14T of the lid 100 and the joint 15T of the upper lid 15 that isolates the path 18 and the groove 14M, and the joint 14C of the projection 100 and the upper lid 5 of the lid 100 that isolates the space and the groove 14M. The presence or absence of a pressure drop in the pressurized air can be detected.
- the discharge port 14K has an annular donut-shaped protrusion 14G protruding from the surface of the vertical wall 14B constituting the lid 100, and a protrusion 14G on a part of the protrusion 14G in the circumferential direction.
- Three cutouts 14L, 14N, and 14P that can discharge the discharged gas from the radial direction of the protrusion 14G are provided.
- the three cutouts extend through the center of the discharge port 14K to the left and right cutouts 14L and 14P formed on both sides in the left and right direction of the lid body 100, and extend to the lower end side of the lid body 100 through the center of the discharge port 14K.
- the lower notch 14N is formed as described above.
- the gas is discharged through the three notches 14L, 14N, and 14P even when the foreign matter is in contact with the surface of the protrusion 14G while omitting the notch extending upward so that dust does not easily collect. It can be done.
- the number of notches 14L, 14N, and 14P, the size of the width, and the like can be freely changed. In addition, you may provide the notch by denting the surface of the vertical wall 14B, without providing the said protrusion 14G.
- one of the lid 100 and the upper lid 15 is provided with a locked portion, and the other is locked to be locked to the locked portion.
- the locking portion protrudes downward from the lower surface of the upper lid 15, and has a circular cross-sectional shape and a hollow cylindrical shape (the inside may be a solid rod-like body). ) Having a pair of left and right cylinders 15D and 15E.
- the locked portion includes a pair of left and right holes 110, 120, and a lock for locking one hole 110 of the pair of left and right holes 110, 120 to the hole 110.
- the portion 15D is formed in a size that prevents the horizontal movement of the portion 15D, and the other hole 120 is formed in a long hole, ie, an oval shape, that is long in the direction opposite to the pair of holes 110, 120. Therefore, before the joint portions 15C and 15T of the upper lid 15 are melted and integrated with the projecting portions 14C and 14T of the lid body 100 as described above, a pair of locking portions with respect to the pair of holes 110 and 120 is obtained. 15D and 15E are locked, positioning of the projecting portions 14C and 14T of the lid body 100 and the joint portions 15C and 15T of the upper lid 15 is completed, and the lid body 100 and the upper lid 15 are moved closer to each other from that state.
- the projecting portions 14C and 14T of the lid 100 and the joint portions 15C and 15T of the upper lid can be reliably joined. And by forming one hole 120 as a long hole, even when the lid 100 and the upper lid 15 are difficult to position due to differences in shrinkage after molding, temperature changes after molding, changes over time, etc. Even when the upper lid 15 expands and contracts in the longitudinal direction according to the room temperature, the elongated hole 120 absorbs it well, and the engagement is performed smoothly. By providing such a locked portion and a locking portion that locks to the locked portion, both can be engaged, but by preventing deformation due to the provision of the protruding portion 13 described above, More reliable engagement is possible.
- the joint portions 5C and 5T of the upper lid 5 are melted and integrated in accordance with the protrusions 4C and 4T of the lid body 1.
- the joint portions 5C and 5T of the upper lid 5 and the lid body 1 may be integrated with an adhesive.
- the other hole 12 was formed in the elongate hole long in the opposing direction of a pair of holes 11 and 12, ie, an oval shape, the rectangular shape where both ends are squared may be sufficient.
- the upper cover 5 was comprised from the rectangular shape, what kind of shapes, such as a square, an ellipse, or a circle, may be sufficient.
- the locking portion is composed of a rod-shaped body, any shape can be used as long as the locking portion can be locked in the hole of the locked portion, the locking portion is a hole, and the locked portion is a rod-shaped body. It may be.
- a guide path is provided for collecting gas in a specific cell chamber and leading it from the cell chamber to the outside through the second exhaust hole.
- the second exhaust hole is omitted using the space as a guide path. May be.
- the battery case having a plurality of cell chambers is shown, but a battery case having one cell chamber may be used.
- an exhaust hole for discharging from the cell chamber to the outside through the guide path is provided in a state communicating with the guide path.
- the storage battery according to the present invention is suitable for mounting on a motorcycle, and in particular, the electrolyte that has moved to the space K can be prevented from reaching the surface of the terminal or the auxiliary lid (outside of the storage battery). Therefore, its industrial applicability is great.
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Abstract
Description
これに対して、出願人は、蓋体にブッシング及び端子を備え、前記ブッシングに前記端子を接続するための導通部がブッシング及び端子と一体成形されて端子部を形成し、前記端子部の一部をインサート成型によって蓋に埋め込んだ蓋部構造を提案している(例えば、特許文献2参照)。
そして、図10、図11及び図16(a),(b),(c),(d)に示すように、前記複数の排気孔14Dから排気されたガスを特定のセル室側へ集めるための空間を形成するべく、前記突出部14Cの内側を閉じる上蓋15を備えている。前記突出部14Cは、図11の平面視においてほぼ長方形状に構成され、後述する第2排気孔14Fを迂回することができるように、その部分が内側に入り込んだ湾曲部を備えている。また、前記底壁14Aは、前記排気孔14Dに向かうほど下方に位置する傾斜面に形成されており、各排気孔14Dから逸出してきた電解液を該当する各排気孔14D側へ戻すことができる案内面として機能するようにしている。さらに、突出部14Cの相対向位置から内側に延びて隣り合う各排気孔14Dの間に位置する間隙を形成する延出部14E,14Eを備えており、排気孔14Dから排気されたガスのみが突出部14Cの内側を自由に移動し、排気孔14Dから逸出してきた電解液が隣り合う他の排気孔14D側へ移動することを可及的に阻止することができるようにしている。
さらに、前記実施形態では、上蓋5を長方形状のものから構成したが、正方形又は楕円形あるいは円形など、どのような形状であってもよい。
Claims (9)
- 少なくとも1つのセル室を備えた電槽と、該電槽の上部開口を覆う合成樹脂製の蓋体とを備え、かつ前記蓋体の上面には、下方に凹んだ凹部が形成されるとともに該凹部を閉じる上蓋を備え、該蓋体の一辺側でかつ該一辺の長手方向両端部のそれぞれに、正、負極の各端子の下側部分を埋設し、上側部分を突設した蓄電池であって、
前記蓋体の、各端子の上側部分が突設される箇所又はその箇所の近傍箇所あるいはそれら両方の箇所に突起部を形成したことを特徴とする蓄電池。 - 前記セル室に極板群が収納されるとともに、前記蓋体に、前記極板群から延びる極柱が挿入されて溶接されるブッシング及び端子を備え、かつ前記ブッシングに前記端子を接続するための導通部がブッシング及び端子と一体成形されて端子部を形成するとともに、前記端子部のうちの少なくともブッシングの下側部分と前記導通部とがインサート成型によって蓋体に埋め込まれていることを特徴とする請求項1記載の蓄電池。
- 前記ブッシングに溶接された極柱の端縁と蓋に埋め込まれたブッシングの端縁とを覆う合成樹脂を被着したことを特徴とする請求項2記載の蓄電池。
- 蓋体上面の凹部を閉じる上蓋は裏面にリブが設けられるとともに、該リブに対向して蓋体上面に設けられたリブがブッシング周縁の一部又は全部を包囲するように設けられてなることを特徴とする請求項2記載の蓄電池。
- 前記ブッシングの上側部分の内径を下側部分の内径より小さいテーパ状に形成し、極柱の下端側の外径を上端側の外径より大きいテーパ状に形成したことを特徴とする請求項2記載の蓄電池。
- 前記蓋体及び前記上蓋の一方に被係止部を備え、かつ、他方に該被係止部に係止する係止部を備え、前記被係止部が一対の孔からなり、前記一対の孔のうちの一方の孔をその孔に係止する係止部の水平方向への移動を阻止する大きさに形成し、かつ、他方の孔を一対の孔の対向方向に長い長孔に形成したことを特徴とする請求項1又は2記載の蓄電池。
- 前記突起部が、前記各端子の上側部分が突設される箇所の周縁の第1凸部分と、該第1凸部分の近傍の長手方向両側に位置し、かつ、該第1凸部分よりも上方に突出する第2凸部分と第3凸部分とを備え、前記端子に、ナットを挿入可能な開口を前記第2凸部分側端又は第3凸部分側端に形成し、前記開口の底面を前記第2凸部分又は第3凸部分の上面よりも低くしたことを特徴とする請求項1又は2記載の蓄電池。
- 少なくとも一方の前記端子部の導通部はインサート成型の合成樹脂層が一部設けられていないか、又は一部厚さを他の部分よりも薄くして設けられたことを特徴とする請求項2記載の蓄電池。
- 前記導通部は、外側に突出する環状の突起部、環状の窪み部または断面積の一部を他の部分よりも小さくした部分、の少なくとも一つを備えたことを特徴とする請求項8記載の蓄電池。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2722554A CA2722554C (en) | 2008-04-25 | 2009-04-24 | Storage battery |
AU2009238921A AU2009238921B2 (en) | 2008-04-25 | 2009-04-24 | Storage battery |
CN200980114660.XA CN102017235B (zh) | 2008-04-25 | 2009-04-24 | 蓄电池 |
EP09735187.8A EP2273586B1 (en) | 2008-04-25 | 2009-04-24 | Storage battery |
BRPI0907551-8A BRPI0907551B1 (pt) | 2008-04-25 | 2009-04-24 | Bateria de armazenamento |
US12/988,750 US8980467B2 (en) | 2008-04-25 | 2009-04-24 | Storage battery |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
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JP2008-114940 | 2008-04-25 | ||
JP2008114940A JP5521279B2 (ja) | 2008-04-25 | 2008-04-25 | 蓄電池 |
JP2008-197378 | 2008-07-31 | ||
JP2008197378A JP2010033993A (ja) | 2008-07-31 | 2008-07-31 | 蓄電池 |
JP2008-206417 | 2008-08-08 | ||
JP2008206417A JP5360537B2 (ja) | 2008-08-08 | 2008-08-08 | 蓄電池における蓋部構造 |
JP2008-206416 | 2008-08-08 | ||
JP2008206416A JP5429592B2 (ja) | 2008-08-08 | 2008-08-08 | 蓄電池における蓋部構造 |
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WO2009131228A1 true WO2009131228A1 (ja) | 2009-10-29 |
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PCT/JP2009/058214 WO2009131228A1 (ja) | 2008-04-25 | 2009-04-24 | 蓄電池 |
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US (1) | US8980467B2 (ja) |
EP (1) | EP2273586B1 (ja) |
KR (1) | KR101547103B1 (ja) |
CN (1) | CN102017235B (ja) |
AU (1) | AU2009238921B2 (ja) |
BR (1) | BRPI0907551B1 (ja) |
CA (1) | CA2722554C (ja) |
WO (1) | WO2009131228A1 (ja) |
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EP2273586B1 (en) | 2019-07-31 |
AU2009238921B2 (en) | 2014-12-18 |
US8980467B2 (en) | 2015-03-17 |
CN102017235A (zh) | 2011-04-13 |
CA2722554A1 (en) | 2009-10-29 |
KR20110014605A (ko) | 2011-02-11 |
AU2009238921A1 (en) | 2009-10-29 |
CA2722554C (en) | 2016-08-09 |
US20110039153A1 (en) | 2011-02-17 |
BRPI0907551B1 (pt) | 2019-07-09 |
EP2273586A4 (en) | 2014-03-05 |
KR101547103B1 (ko) | 2015-09-03 |
BRPI0907551A2 (pt) | 2016-08-09 |
EP2273586A1 (en) | 2011-01-12 |
CN102017235B (zh) | 2014-10-29 |
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