GB2026761A - Accumulator terminal assemblies - Google Patents

Accumulator terminal assemblies Download PDF

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Publication number
GB2026761A
GB2026761A GB7926009A GB7926009A GB2026761A GB 2026761 A GB2026761 A GB 2026761A GB 7926009 A GB7926009 A GB 7926009A GB 7926009 A GB7926009 A GB 7926009A GB 2026761 A GB2026761 A GB 2026761A
Authority
GB
United Kingdom
Prior art keywords
cover
assembly
accumulator
welding
terminal
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.)
Granted
Application number
GB7926009A
Other versions
GB2026761B (en
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.)
Accumulatorenwerk Hoppecke Carl Zoellner and Sohn KG
Original Assignee
Accumulatorenwerk Hoppecke Carl Zoellner and Sohn KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Accumulatorenwerk Hoppecke Carl Zoellner and Sohn KG filed Critical Accumulatorenwerk Hoppecke Carl Zoellner and Sohn KG
Publication of GB2026761A publication Critical patent/GB2026761A/en
Application granted granted Critical
Publication of GB2026761B publication Critical patent/GB2026761B/en
Expired legal-status Critical Current

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Classifications

    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

An assembly for securing a terminal post (1) in the cover (2) of an accumulator. The terminal post (1) has a shank with circumferential ribs (4) on to which a collar member (5) is moulded. The member (5) has an upwardly extending neck (6) of annular form by which the member (5) can be welded to a corresponding neck (7) of the cover (2). <IMAGE>

Description

SPECIFICATION Accumulator terminal assemblies The invention relates to an assembly for leading a terminal post through an opening in the cover of an accumulator, for example a lead/acid accumulator. According to the present invention there is provided an assembly for leading a terminal through an opening in the cover of an accumulator said assembly comprising a cell terminal provided with a shank having spaced annular projections and/or ribs and/or grooves which extend either parallel to each other or of helical form, and a thermoplastics portion moulded around the shank having an upwardlyextending annular welding neck for welding the said portion to a corresponding neck of the cover of the accumulator.
Further according to the present invention there is provided an assembly for securing terminal post in an accumulator casing cover, said assembly comprising a terminal post having a shank, and a plastics portion moulded on to the shank, the engagement between the shank and plastics portion being made positive by parallel groves and projections or by a helical grove and projection and the plastics portion having a neck by which it can be welded to the casing cover.
Accumulator terminal post assemblies embodying the invention will now be described by way of example with reference to the accompanying diagrammatic drawings in which; Fig. 1 is a part section through an accumulator cell comprising a terminal post assembly embodying the invention; Fig. 2 is a part section of a flat terminal post assembly embodying the invention; Fig. 3 is a side view ot the assembly of Figure 2; Fig. 4 shows a plug type terminal post partly in section; Fig 5 is a terminal post lead-through assembly for the plug terminal post shown in Figure 4; and Fig. 6 is a modified embodiment of a terminal post iead-through assembly for a plug terminal post.
The fragmentary view of a lead/acid accumulator cell shown in Figure 1 includes a terminal post 1 welded to a plate lug 15, and projecting from an accumulator casing 3 through an opening 16 in the cell cover 2. The casing 3 and the cover 2 are of thermoplastics material.
The terminal post 1 is provided on the shank with parallel, peripheral, ribs 4, and these ribs engage in complementary grooves in portion 5 moulded around it. The ribs 4 provide both firm, positive engagement with the plastics portion 5 on the terminal post 1, and a very long surfaceleakage path for the electrolyte, which ensures both fluid-tightness and mechanical strength.
Although shown as parallel ribs, the projections may alternatively take the form of a single helical rib with several turns. Again, the ribs may be replaced by corresponding recesses on the shank so that ribs are formed on the portion 5.
The portion 5 is provided with an upwardly extending annular welding neck 6, which extends exactly to the welding plane between the cover 2 and casing 3, as can be seen in the drawing from the individually indicated welding locations. A degree of flexibility is provided for this joining region by an annular groove 17 formed between the main part of the plastics portion 5 and the welding neck 6.
The opening 16 in the cover 2 is surrounded by a welding neck 7, which is complementary to the welding neck 6 on the plastics portion 5. The two welding necks 6 8 7 come into mutual contact in the welding plane when the cover 2 is laid on the casing 3, so that welding of the cell cover 2 to the cell casing 3 and to the plastics neck 5 can take place simultaneouslv by welding, for example "mirror" welding (spiegeiverschweissung) Figures 2 and 3 show a flat terminal 14, of which the shank within the plastics portion 6 is formed in a manner similar to the corresponding portion of the conical terminal 13 of Figure 1.
A further embodiment of a terminal leadthrough assembly is shown in Figure 5. This assembly is generally in the form of a socket suitable for providing a connection with a plug such as shown in Figure 4. In this embodiment, the terminal post 1 comprises a central blind bore, which is lined with an integrally cast contact sleeve 1 1. As in the first embodiment the shank part of the terminal post 1 is provided externally with ribs 4, about which a plastics portion 5 is moulded. The plastics portion 5 is provided with an upwardly-extending beaded edge 10 which is arranged to engage an annular, downwardly- facing groove in the plug 12 so that a sealed plug and socket connection can be formed.
In order to improve flexibility in the connection region between the terminal lead-through assembly and the cover 2, the welding neck 7 of the cell cover is joined to the cell cover 2 by way of a flexible annular part 8 of thin thermoplastics material in the corrugated form. The flexible region 8 is covered by a plastics ring 9 mounted thereon.
The purpose of the flexible region 8 is to accommodate any displacement of the cell terminal which arises as the positive plates of the accumulator expand.
Alternatively, the flexible connection from the cover 2 to the portion 5 can be, as shown in Figure 6, by way of an annular cover part 8 of reduced thickness provided by the provision of an annular, downwardly-facing, recess of part circular section.
1. An assembly for leading a terminal through an opening in the cover of an accumulator said assembly comprising a cell terminal provided with a shank having spaced annular projections and/or ribs and/or grooves which extend either parallel to each other or of helical form, and a thermoplastics portion moulded around the shank having an upwardly-extending annular welding neck for welding the said portion to a corresponding neck of the cover of the accumulator.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Accumulator terminal assemblies The invention relates to an assembly for leading a terminal post through an opening in the cover of an accumulator, for example a lead/acid accumulator. According to the present invention there is provided an assembly for leading a terminal through an opening in the cover of an accumulator said assembly comprising a cell terminal provided with a shank having spaced annular projections and/or ribs and/or grooves which extend either parallel to each other or of helical form, and a thermoplastics portion moulded around the shank having an upwardlyextending annular welding neck for welding the said portion to a corresponding neck of the cover of the accumulator. Further according to the present invention there is provided an assembly for securing terminal post in an accumulator casing cover, said assembly comprising a terminal post having a shank, and a plastics portion moulded on to the shank, the engagement between the shank and plastics portion being made positive by parallel groves and projections or by a helical grove and projection and the plastics portion having a neck by which it can be welded to the casing cover. Accumulator terminal post assemblies embodying the invention will now be described by way of example with reference to the accompanying diagrammatic drawings in which; Fig. 1 is a part section through an accumulator cell comprising a terminal post assembly embodying the invention; Fig. 2 is a part section of a flat terminal post assembly embodying the invention; Fig. 3 is a side view ot the assembly of Figure 2; Fig. 4 shows a plug type terminal post partly in section; Fig 5 is a terminal post lead-through assembly for the plug terminal post shown in Figure 4; and Fig. 6 is a modified embodiment of a terminal post iead-through assembly for a plug terminal post. The fragmentary view of a lead/acid accumulator cell shown in Figure 1 includes a terminal post 1 welded to a plate lug 15, and projecting from an accumulator casing 3 through an opening 16 in the cell cover 2. The casing 3 and the cover 2 are of thermoplastics material. The terminal post 1 is provided on the shank with parallel, peripheral, ribs 4, and these ribs engage in complementary grooves in portion 5 moulded around it. The ribs 4 provide both firm, positive engagement with the plastics portion 5 on the terminal post 1, and a very long surfaceleakage path for the electrolyte, which ensures both fluid-tightness and mechanical strength. Although shown as parallel ribs, the projections may alternatively take the form of a single helical rib with several turns. Again, the ribs may be replaced by corresponding recesses on the shank so that ribs are formed on the portion 5. The portion 5 is provided with an upwardly extending annular welding neck 6, which extends exactly to the welding plane between the cover 2 and casing 3, as can be seen in the drawing from the individually indicated welding locations. A degree of flexibility is provided for this joining region by an annular groove 17 formed between the main part of the plastics portion 5 and the welding neck 6. The opening 16 in the cover 2 is surrounded by a welding neck 7, which is complementary to the welding neck 6 on the plastics portion 5. The two welding necks 6 8 7 come into mutual contact in the welding plane when the cover 2 is laid on the casing 3, so that welding of the cell cover 2 to the cell casing 3 and to the plastics neck 5 can take place simultaneouslv by welding, for example "mirror" welding (spiegeiverschweissung) Figures 2 and 3 show a flat terminal 14, of which the shank within the plastics portion 6 is formed in a manner similar to the corresponding portion of the conical terminal 13 of Figure 1. A further embodiment of a terminal leadthrough assembly is shown in Figure 5. This assembly is generally in the form of a socket suitable for providing a connection with a plug such as shown in Figure 4. In this embodiment, the terminal post 1 comprises a central blind bore, which is lined with an integrally cast contact sleeve 1 1. As in the first embodiment the shank part of the terminal post 1 is provided externally with ribs 4, about which a plastics portion 5 is moulded. The plastics portion 5 is provided with an upwardly-extending beaded edge 10 which is arranged to engage an annular, downwardly- facing groove in the plug 12 so that a sealed plug and socket connection can be formed. In order to improve flexibility in the connection region between the terminal lead-through assembly and the cover 2, the welding neck 7 of the cell cover is joined to the cell cover 2 by way of a flexible annular part 8 of thin thermoplastics material in the corrugated form. The flexible region 8 is covered by a plastics ring 9 mounted thereon. The purpose of the flexible region 8 is to accommodate any displacement of the cell terminal which arises as the positive plates of the accumulator expand. Alternatively, the flexible connection from the cover 2 to the portion 5 can be, as shown in Figure 6, by way of an annular cover part 8 of reduced thickness provided by the provision of an annular, downwardly-facing, recess of part circular section. CLAIMS
1. An assembly for leading a terminal through an opening in the cover of an accumulator said assembly comprising a cell terminal provided with a shank having spaced annular projections and/or ribs and/or grooves which extend either parallel to each other or of helical form, and a thermoplastics portion moulded around the shank having an upwardly-extending annular welding neck for welding the said portion to a corresponding neck of the cover of the accumulator.
2. An assembly as claimed in claimed in claim 1 wherein an annular groove is formed in the thermoplastics portion between the welding neck and the main part thereof.
3. An accumulator incorporating an assembly according to claim 1 or claim 2 comprising an annular welding neck formed on the lower side of the cover of the accumulator casing to correspond with the welding neck on the said thermoplastics portion.
4. An accumulator as claimed in claim 3, wherein the cover welding neck is joined to the cover by a flexible annular region.
5. An accumulator as claimed in claim 4, wherein the flexible annular region comprises one or more corrugations.
6. An assembly as claimed in claim 1 or claim 2, wherein the plastics portion comprises an upwardly-extending annular beaded edge for engagement in a complementary groove of a plug terminal.
7. An assembly for securing terminal post in an accumulator casing cover, said assembly comprising a terminal post having a shank, and a plastics portion moulded on to the shank, the engagement between the shank and plastics portion being made positive by parallel groves and projections or by a helical groove and projection and the plastics portion having a neck by which it can be welded to the casing cover.
8. An assembly for securing a terminal post in an accumulator casing cover substantially as hereinbefore described with reference to the accompanying drawings.
9. An accumulator incorporating at least one assembly according to any one of claims 1 , 2, 6, 7 or8.
GB7926009A 1978-07-29 1979-07-26 Accumulator terminal assemblies Expired GB2026761B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2833416A DE2833416C2 (en) 1978-07-29 1978-07-29 Process for the production of a pole leadthrough for accumulators and their design

Publications (2)

Publication Number Publication Date
GB2026761A true GB2026761A (en) 1980-02-06
GB2026761B GB2026761B (en) 1983-03-23

Family

ID=6045764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7926009A Expired GB2026761B (en) 1978-07-29 1979-07-26 Accumulator terminal assemblies

Country Status (8)

Country Link
BE (1) BE876847A (en)
DE (1) DE2833416C2 (en)
ES (1) ES244848Y (en)
FR (1) FR2432217A1 (en)
GB (1) GB2026761B (en)
IT (1) IT1122649B (en)
PT (1) PT69707A (en)
SE (1) SE448585B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105416A1 (en) * 1982-10-01 1984-04-18 VARTA Batterie Aktiengesellschaft Gas and liquid tight sealing structure for terminal posts of electric accumulators, particularly lead-acid accumulators
EP0399247A1 (en) * 1989-05-26 1990-11-28 Olimpio Stocchiero Lid for accumulator batteries suited to absorb the deformation of the poles
EP0854525A2 (en) * 1997-01-21 1998-07-22 GNB Technologies, Inc. Sealed lead-acid cells and batteries
US6312852B1 (en) * 1998-02-26 2001-11-06 C&D Charter Holdings Inc. Battery cell cover with flexible positive post terminal
WO2004114436A2 (en) * 2003-06-14 2004-12-29 Varta Automotive Systems Gmbh Battery and method for producing a sealed contact terminal bushing
US8252448B2 (en) * 2005-11-26 2012-08-28 Hoppecke Batterien Gmbh & Co. Kg Apparatus for sealing tube plates of batteries
US9608241B2 (en) 2014-07-21 2017-03-28 Hoppecke Batterien Gmbh & Co. Kg Battery cell for a battery, especially for a traction battery

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1134262B (en) * 1980-11-13 1986-08-13 Fiamm Componenti Accessori Spa COVER FOR ELEMENT ELECTRIC PUMP ELEMENTS WITH ELASTIC LOCKING OF POLES
DE4319923C1 (en) * 1993-06-16 1995-04-27 Deta Akkumulatoren Pole feed-through for accumulators

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7307438U (en) * 1973-06-14 Varta Batterie Ag End pole lead-through for accumulators
DE2064547C3 (en) * 1970-12-30 1974-04-25 Varta Batterie Ag, 3000 Hannover Terminal bushing for accumulators and process for their production
US3849203A (en) * 1971-11-17 1974-11-19 Richardson Co Method for producing battery terminal
BE793708A (en) * 1972-01-05 1973-05-02 Tudor Ab BATTERY OF ACCUMULATORS PROVIDED WITH POLAR END TERMINALS DESIGNED IN A SINGLE PIECE
DE7520197U (en) * 1975-06-25 1976-09-30 Varta Batterie Ag, 3000 Hannover ELECTRIC ACCUMULATOR, IN PARTICULAR LEAD ACCUMULATOR FOR VEHICLE BATTERIES
DE2617016C2 (en) * 1976-04-17 1983-09-29 Varta Batterie Ag, 3000 Hannover Electric lead accumulator, in particular for vehicles
SE442155B (en) * 1977-02-11 1985-12-02 Nordiska Ackumulator Fabriker POLBULTS THROUGH THE LOCK FOR THE HOUSING WITH AN ELECTRIC ACCUMULATOR
JPS6051779B2 (en) * 1977-09-24 1985-11-15 株式会社ユアサコーポレーション storage battery
US4154907A (en) * 1977-11-14 1979-05-15 General Motors Corporation Side terminal battery structure

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105416A1 (en) * 1982-10-01 1984-04-18 VARTA Batterie Aktiengesellschaft Gas and liquid tight sealing structure for terminal posts of electric accumulators, particularly lead-acid accumulators
EP0399247A1 (en) * 1989-05-26 1990-11-28 Olimpio Stocchiero Lid for accumulator batteries suited to absorb the deformation of the poles
USRE37804E1 (en) 1997-01-21 2002-07-23 Gnb Technologies, Inc. Sealed lead-acid cells and batteries having internal and external restraint for accommodating plate growth
US5876873A (en) * 1997-01-21 1999-03-02 Gnb Technologies, Inc. Sealed lead-acid cells and batteries having internal and external restraint for accommodating plate growth
EP0854525A3 (en) * 1997-01-21 1999-10-06 GNB Technologies, Inc. Sealed lead-acid cells and batteries
AU722126B2 (en) * 1997-01-21 2000-07-20 Gnb Technologies, Inc. Sealed lead-acid cells and batteries
EP1217681A2 (en) * 1997-01-21 2002-06-26 GNB Technologies, Inc. Sealed lead-acid cells and batteries
EP1217681A3 (en) * 1997-01-21 2002-07-10 GNB Technologies, Inc. Sealed lead-acid cells and batteries
EP0854525A2 (en) * 1997-01-21 1998-07-22 GNB Technologies, Inc. Sealed lead-acid cells and batteries
US6312852B1 (en) * 1998-02-26 2001-11-06 C&D Charter Holdings Inc. Battery cell cover with flexible positive post terminal
WO2004114436A2 (en) * 2003-06-14 2004-12-29 Varta Automotive Systems Gmbh Battery and method for producing a sealed contact terminal bushing
WO2004114436A3 (en) * 2003-06-14 2005-07-21 Varta Automotive Systems Gmbh Battery and method for producing a sealed contact terminal bushing
US7879487B2 (en) 2003-06-14 2011-02-01 Varta Automotive Systems Gmbh Battery having sealed contact terminal bushing
US8252448B2 (en) * 2005-11-26 2012-08-28 Hoppecke Batterien Gmbh & Co. Kg Apparatus for sealing tube plates of batteries
US9608241B2 (en) 2014-07-21 2017-03-28 Hoppecke Batterien Gmbh & Co. Kg Battery cell for a battery, especially for a traction battery

Also Published As

Publication number Publication date
FR2432217A1 (en) 1980-02-22
ES244848U (en) 1979-11-16
FR2432217B1 (en) 1984-08-03
GB2026761B (en) 1983-03-23
ES244848Y (en) 1980-05-16
IT7924742A0 (en) 1979-07-27
DE2833416C2 (en) 1980-06-26
SE7906414L (en) 1980-01-30
PT69707A (en) 1979-06-01
IT1122649B (en) 1986-04-23
DE2833416B1 (en) 1979-09-27
BE876847A (en) 1979-10-01
SE448585B (en) 1987-03-02

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Legal Events

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PCNP Patent ceased through non-payment of renewal fee