US3745635A - Improvements in and relating to manufacture of electric storage batteries - Google Patents

Improvements in and relating to manufacture of electric storage batteries Download PDF

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Publication number
US3745635A
US3745635A US3745635DA US3745635A US 3745635 A US3745635 A US 3745635A US 3745635D A US3745635D A US 3745635DA US 3745635 A US3745635 A US 3745635A
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US
United States
Prior art keywords
lid
heater
box
shoulder
battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
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English (en)
Inventor
J Harris
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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Filing date
Publication date
Priority claimed from GB3188068A external-priority patent/GB1271089A/en
Priority claimed from GB291671A external-priority patent/GB1366315A/en
Application filed by Lucas Industries Ltd filed Critical Lucas Industries Ltd
Application granted granted Critical
Publication of US3745635A publication Critical patent/US3745635A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2061—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding
    • B29C65/2069—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding with an angle with respect to the plane comprising the parts to be joined
    • B29C65/2076—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding with an angle with respect to the plane comprising the parts to be joined perpendicularly to the plane comprising the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • 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
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7146—Battery-cases
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/53135—Storage cell or battery
    • Y10T29/53139—Storage cell or battery including deforming means

Definitions

  • ABSTRACT Apparatus for assembling, positioning and securing a battery casing and lid in the manufacture of electric storage batteries comprises a frame and first and second die parts movable relative to the frame and adapted to receive a battery casing or box and a recessed battery lid respectively.
  • the die parts can be caused to retain the box and lid respectively and are movable between a separated position and a position in which the lid is accurately positioned on the box.
  • a heater is movable relative to the frame between an inoperative position and an operative position in which the lid and the box can be moved into contact with the heater.
  • the heater has a portion which, when the lid is moved into contact with the heater, engages an internal peripheral shoulder defined in the recessed battery lid to melt the shoulder, and said portion of the heater is undercut to the rear of the surface of the portion which engages the shoulder so that, when the lid is in contact with the heater, the wall of the lid adjacent the shoulder is not melted.
  • An object of the invention is to provide an improved apparatus for assembling, positioning and securing a battery casing to a lid thereof during manufacture of electric storage batteries.
  • Apparatus comprises a frame, first and second die parts movable relative to the frame and adapted to receive a battery box and recessed battery lid respectively, means whereby the die parts can be caused to retain the box and lid respectively, means for moving the die parts between a separated position and a position in which the lid is accurately positioned on the box, and a heater movable relative to the frame between an inoperative position and an operative position in which the lid and the box can be moved into contact with the heater, the heater having a portion which, when the lid is moved into contact with the heater, engages an internal peripheral shoul' der defined in the recessed battery lid to melt the shoulder, and said portion of .the heater being undercut to the rear of the surface of the portion which engages the shoulder so that, when the lid is in contact with the the heater, the wall of the lid adjacent the shoulder is not melted.
  • FIG. 1 illustrates a pack of battery plates and separators
  • FIG. 2 shows a battery box with all but one of the packs in position
  • FIG. 3 is a part sectional view of the battery box illustrating thecompletion of the intercell connections
  • FIG. 4 is an inverted plan view of the battery lid
  • FIG. 5 is a sectional view along line A-A in FIG. 4,
  • FIG. 6 is a partly diagrammatic side elevational view illustrating a machine used to connect the lid to the battery box
  • FIG. 7 is a part sectional plan view of the heater of the machine shown in FIG. 6,
  • FIG. 8 is a part sectional side elevational view of the heater shown in FIG. 7,
  • FIG. 9 is a diagrammatic representation of the operation of the machine shown in FIG. 6, I
  • FIG. 10 is a sectional view of the battery lid taken along the line 3-8 in FIG. 4 and of part of the heater at one stage during the manufacture of the battery using the machine shown in FIG. 6, and
  • FIG. 11 is a sectional view of the battery lid and heater at the same stage of manufacture of the battery as shown in FIG. 10 but using a modified form of heater to that shown in FIG. 10.
  • a battery box 11 is moulded from polypropylene or other suitable thermoplastic material, the box including partition walls 12 dividing the box into six compartments. Each compartment receives a preformed pack 13 of positive and negative battery plates and separators.
  • the two sets of plates in each of the four packs, which are to be mounted in the central compartments of the box 11 are connected respectively to conductive connecting lugs 15,16 formed with extensions which, in use, extend substantially parallel to the partition walls 12.
  • the extensions on the lugs 15 and 16 are each formed on their surfaces to be presented to the partition walls 12 with an upstanding annular rib I0 and each of the extensions on the lugs 16 is further formed on its surface to be presented to the respective partition wall with an outwardly extending spigot 16a (FIG. 3).
  • the partition walls 12 have holes stamped therein, and the arrangement is such that when the packs are positioned in the box 11, each spigot 16a passes through a hole in a respective partition wall and engages the lug 15 on a pack in the adjacent cell, the ribs 10 on each spigot 16a and each lug l5 surrounding the hole in the respective wall.
  • the walls 12 are of course arranged to be sufi'iciently flexible to permit introduction of the packs into the compartments before the spigots 16a enter their respective holes. When all the packs are in position the required intercell connections are completed using a tool 18, as shown in FIG. 3.
  • This tool includes a pair of electrodes 21, 22 which engage corresponding lugs l5, 16 respectively, and simultaneously exert pressure and pass current between the lugs l5, 16 so that the spigot 16a of each lug 16 becomes welded to the respective lug l5, and the hole in the respective partition wall 12 is sealed. When all the intercell connections are made the battery is complete apart from the lid.
  • the longer walls of the box I l are formed with respective recesses 24, clamping means (not shown) engaging the recesses 24, in use, and serving to mount the battery in position on a vehicle.
  • the lid 25 (FIGS. 4 and 5) is also moulded in polypropylene, or other suitable thermo plastic material,
  • the lid 25 includes six, integral filling tubes 29, each of which has associated therewith a vent passage 31, each tube 29 and respective vent passage 31 being associated with a respective cell of the battery when the lid is in position on the box 11.
  • the lid 25 will have associated therewith, a manifold assembly, which is movable relative to the lid 25 between a first position wherein the vents 31 are open, and a second position wherein the vents 31 are closed.
  • the vents 31 and the tubes 29 open into a common channel 32 in the lid 25, the channel 32 and the manifold assembly (not shown) facilitating simultaneous filling of the six cells of the battery to the desired level with electrolyte.
  • the lid 25 further includes a pair of integral hollow spigots 33 which receive lead inserts for the terminal posts 17 respectively.
  • the lid 25 includes a pair of integral guide pegs which project from the lower surface of the lid 25 and present to the peripheral wall 26 an inclined surface extending from the shoulder 27 in a direction away from the wall 26.
  • the pegs 30 guide the lid into the correct longitudinal position relative to the box 11.
  • Further guide pegs can also be provided on the partition walls 28 of the lid, the further guide pegs being arranged in pairs on each partition wall 28 and serving to guide the walls 28 into engagement with their respective walls 12 when the lid is positioned on the'box 11.
  • the lid 25 is welded to the box 11, and for this purpose the machine shown in FIG. 6 is used.
  • the machine comprises a frame having a base 34, a pair of pedestals 35, and an arm 36, which extends at right angles to the pedestals 35, and which overlies the base 34.
  • a first die part 37 is slidably mounted on the arm 36, for vertical movement relative to the arm 36.
  • the die part 37 is carried on a pair of guide rods, one of which is shown at 38, and is moved vertically relative to the arm 36 by means of a pneumatic or hydraulic ram 39.
  • a conveyor extends over the base 34, and the base 34 includes a platform 41 which is movable vertically, upwardly relative to the base 34, from a position wherein the platform is slightly below the plane of the conveyor.
  • the die part 37 supports a battery lid'25 and the platform 41 carries a battery box 11 which is to have the lid 25 welded thereto.
  • the pedestals support a pair of guide ways, one of which is shown at 42, the guide ways 42 extending parallel with the arms 36 and the base 34.
  • a heater assembly 43 (FIGS. 6, 7 and 8).
  • the heater assembly 43 includes a main body 44 carrying rollers 45 by means of which the heater assembly is slidably mounted in the guide ways 42.
  • the body 44 is formed with passages 46 within which electric heating elements are received.
  • a plain duralumin plate 47 Secured to the face of the body 44, which is presented to the base 34, is a plain duralumin plate 47, and secured to the face of the body 44 presented to the arm 36 is a pair of duralumin plates 48a, 48b which are mirror images of one another.
  • the plates 48a, 48b are adjustably secured to the body 44 by means of screws, and are spaced apart by a duralumin packing piece 48c.
  • the plates 48a, 48b and the packing piece 48c define a sub-assembly which on its surface to be presented to the battery lid 25 is substantially the same size as the internal dimensions of the battery lid 25.
  • the periphery of the subassembly defined by the plates 48a, 48b and the piece 48c is undercut, as shown at 49, so that the dimensions of the sub-assembly decrease from a maximum value at the surface thereof to be presented to the lid 25 to a minimum value at the surface thereof adjacent the body 44.
  • the plates 48a, 48b are provided with holes 51 within which are received the filling tubes 29, the guide pegs 30 and the terminal spigots 33 of the lid 25, when the lid 25 is engaged with the heater assembly 43.
  • the duralumin used in the heater assembly has the following composition:
  • a series of boxes containing their respective interconnected packs 13, and having respective lids 25 placed thereon are fed onto the conveyor, and are carried by the conveyor between guide rails 53 singly over the platform 41.
  • a box 11 reaches the platform 41 it engages a stop 52 supported by the pedestals 35, and in so doing operates a micro-switch which starts a cam control system.
  • the cam control system firstly causes the platform 41 to be raised through the moving conveyor, thereby supporting and locating the box 11.
  • Mechanical means (not shown) is now actuated to hold the box 11 firmly in position on the platform 41 for the remainder of the operation.
  • the cam control system then causes the die part 37 to be lowered, until the die part 37 engages the lid 25 which is resting on top of the box 11.
  • the die part 37 is then lowered, so that the plates 48a, 48b, and the packing piece 48c enter the lid 25 and engage the peripheral shoulder 27 and the free edges of the walls 28 of the lid.
  • the platform 41 is raised so that the free edge of the wall of the box 11 and the free edges of the partition walls 12 of the box 11 engage the plate 47 of the heater assembly 43.
  • the box 11 and the lid 25 are then maintained in engagement with the heater for a further three seconds, so that the free edges of the wall of the box 11 and the partition walls 12 are heated for three seconds, while the shoulder 27 and the free edges of the partition walls 28 are heated for a total of four seconds.
  • the box 11 and the lid 25 are pressed lightly into contact with the heater assembly 43, and it will be appreciated that since the subassembly defined by the plates 48a, 48b and the packing piece 480 is undercut at 49 (FIG. 10), then the wall 26 of the lid 25, will not be heated.
  • the die part 37 and the platform 41 are then returned to their previous positions and the heater assembly 43 is retracted from between the lid 25 and the box 11.
  • the platform 41 and the die part 37 are moved towards one another to engage the lid with the box 11.
  • the time between the lid 25 and the box 11 leaving contact with the heater assembly 43 and contacting each other is approximately one and a half seconds.
  • the lid is then pressed firmly into contact with the box 11 for four seconds, during which time the areas of the box 11, and the lid 25, which were melted by contact with a heater assembly 43, merge together to seal the lid onto the box.
  • the lid After the lid has been held in contact with the box for four seconds, the lid is released from the die part 37, and the platform 41 is lowered, so that the box 11, together with the lid 25, which is welded thereto are returned to the conveyor, and are replaced by a further box 11, which is to have its respective lid welded to it.
  • the die part 37 is returned to its original position in readiness for a further cycle.
  • the overall cycle of the machine takes twelve seconds.
  • a reduced pressure is used to urge the box into engagement with the heater to effect the initial melting step and in one example the box 11 is urged against the heater assembly 39 at a pressure of 39 p.s.i., whereas the lid 21 is urged against the heater assembly 39 at a pressure of 80 p.s.i., it being appreciated that with a conventional battery box the same pressure,normally 80 p.s.i., is used to urge both the lid and the box against the heater. Further, to effect sealing of the lid to such a battery box, after the initial melting step, the application of pressure between the lid and the box is desirably effected in two stages, that is by initially applying only a low pressure and then increasing the pressure to the desired final value.
  • the lid 21 was pressed against the box 11 at an initial pressure of p.s.i., thepressure then being increased to a final value of 80 p.s.i. and the time of the pressing operation being adjusted accordingly.
  • the provision of the guide pegs 30 on the ends respectively of the lid 25 serve to prevent the free edges of the end walls of the battery box 1l from bending inwardly relative to their respective cell compartments during the application of pressure between the lid and the box.
  • further guide pegs are provided on the partition walls 28 of the lid these serve during the welding operation to retain the free edges of the walls 28 and the walls 12 respectively in face-toface relationship.
  • the construction of the heater sub-assembly defined by the plates 48a, 48b and the packing piece 480 is altered.
  • the subassembly is undercut to the rear of the surface thereof to be presented to the battery lid 25, the periphery 54 of the sub-assembly defines first and second surfaces 54a, 54b respectively.
  • the first surface 54a of the periphery 54 extends at right angles to the surface of the sub-assembly to be presented to the lid 25 and the second surface 54b extends from the surface 544 to the surface of the sub-assembly adjacent the body 44 and is inclined inwardly with respect to the first peripheral surface 54a so as to define the undercut feature of the sub-assembly. It is, of course, to be appreciated that as in the above example, it is only the shoulder 27 of the lid 25 and the free edges of the walls 28 which are heated by the sub-assembly defined by the plates 48a, 48b and the packing piece 48c when the lid is engaged with the heater.
  • the assembly constituted by the plates 48a, 48b and the packing piece 480 could, of course, be produced as a single part, but in practice the assembly is produced in the three parts so that by replacing the packing piece 480 with alternative duralumin packing pieces of different widths, the assembly constituted by the parts 48a, 48b, 48c can be adjusted to accommodate a range of differently sized battery lids.
  • Apparatus for use in the manufacture of electric storage batteries comprising a frame, first and second die parts movable relative to the frame and adapted to receive a battery box and a recessed battery lid respectively, means whereby the die parts can be caused to retain the box and lid respectively, means for moving the die parts between a separated position and a position in which the lid is accurately positioned on the box, and a heater movable relative to the frame between an inoperative position and an operative position in which the lid and the box can be moved into contact with the heater, the heater having a portion which, when the lid is moved into contact with the heater, engages an internal peripheral shoulder defined in the recessed battery lid to melt the shoulder, and said portion of the heater being undercut to the rear of the surface of the portion which engages the shoulder so that, when the lid is in contact with the heater, the wall of the lid adjacent the shoulder is not melted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
US3745635D 1968-07-04 1972-01-20 Improvements in and relating to manufacture of electric storage batteries Expired - Lifetime US3745635A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB3188068A GB1271089A (en) 1968-07-04 1968-07-04 Electric storage batteries
GB291671A GB1366315A (en) 1971-01-22 1971-01-22 Electric storage batteries
JP1003671A JPS5413568B1 (enrdf_load_stackoverflow) 1968-07-04 1971-03-01
DE2109499A DE2109499C3 (de) 1968-07-04 1971-03-01 Vorrichtung zum Verbinden eines Deckels mit dem Kasten einer Blockbatterie und Deckel zum Verschweißen mit dieser Vorrichtung
GB1689974A GB1496152A (en) 1968-07-04 1975-04-24 Apparatus for use in the manufacture of electric storage batteries

Publications (1)

Publication Number Publication Date
US3745635A true US3745635A (en) 1973-07-17

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ID=72829024

Family Applications (1)

Application Number Title Priority Date Filing Date
US3745635D Expired - Lifetime US3745635A (en) 1968-07-04 1972-01-20 Improvements in and relating to manufacture of electric storage batteries

Country Status (4)

Country Link
US (1) US3745635A (enrdf_load_stackoverflow)
JP (1) JPS5413568B1 (enrdf_load_stackoverflow)
DE (1) DE2109499C3 (enrdf_load_stackoverflow)
GB (1) GB1496152A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144569A3 (en) * 1979-10-22 1987-09-30 Hardigg Industries, Incorporated Battery case welding apparatus
US20210401038A1 (en) * 2018-12-19 2021-12-30 Jt International S.A. Electronic Cigarette

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
JPS542958B2 (enrdf_load_stackoverflow) * 1974-04-19 1979-02-15
JPS5546491Y2 (enrdf_load_stackoverflow) * 1975-12-09 1980-10-31
JPS5429199A (en) * 1977-08-09 1979-03-05 Tohatsu Kk Veneer lathe
GB2010171B (en) * 1977-12-20 1982-08-18 Hardigg Ind Inc Method and apparatus for bonding thermoplastic materials
EP2040319B1 (de) * 2007-09-12 2016-08-10 HOPPECKE Batterien GmbH & Co. KG Deckel für ein Gehäuse eines Akkumulators

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US3544754A (en) * 1963-03-27 1970-12-01 Globe Union Inc Electric welder for joining battery-cell connecters through intercell walls

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FR1476366A (fr) * 1966-04-19 1967-04-07 Lucas Industries Ltd Batterie d'accumulateurs électriques

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544754A (en) * 1963-03-27 1970-12-01 Globe Union Inc Electric welder for joining battery-cell connecters through intercell walls

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144569A3 (en) * 1979-10-22 1987-09-30 Hardigg Industries, Incorporated Battery case welding apparatus
US20210401038A1 (en) * 2018-12-19 2021-12-30 Jt International S.A. Electronic Cigarette
US12089633B2 (en) * 2018-12-19 2024-09-17 Jt International S.A. Electronic cigarette

Also Published As

Publication number Publication date
DE2109499B2 (de) 1980-04-10
GB1496152A (en) 1977-12-30
DE2109499A1 (de) 1972-09-07
JPS4729840A (enrdf_load_stackoverflow) 1972-11-07
JPS5413568B1 (enrdf_load_stackoverflow) 1979-05-31
DE2109499C3 (de) 1984-03-01

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