Method and apparatus for fabricating dry cell batteries
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B23K-001/00
출원번호
US-0827635
(2004-04-20)
발명자
/ 주소
Chaskin,Jeffrey R.
출원인 / 주소
Chaskin,Jeffrey R.
인용정보
피인용 횟수 :
1인용 특허 :
16
초록▼
A method and apparatus is disclosed for fabricating a dry cell storage battery from a plurality of dry cells by soldering a battery strap to terminals of adjacent dry cells in a battery pack. A resistance heat solder apparatus is provided for soldering a joint defined by an end portion of a battery
A method and apparatus is disclosed for fabricating a dry cell storage battery from a plurality of dry cells by soldering a battery strap to terminals of adjacent dry cells in a battery pack. A resistance heat solder apparatus is provided for soldering a joint defined by an end portion of a battery strap and a terminal of a dry cell, so that adjacent dry cells in the battery pack are in physical and electrical contact. Terminal probes, connected across the secondary coil of a step-down transformer, are used to make contact with the joint to be soldered for applying a voltage across the joint. Terminal probes have contoured tips. A preferred embodiment provides terminal probes which are contoured to be a mirror image of the contour of the joint where the particular terminal probe makes contact with the solder joint. Application of a voltage across the joint provides a collimated current flow path through the joint. An intense heat is created within the joint by the current flow.
대표청구항▼
What is claimed is: 1. A method for soldering a junction defined by a portion of a battery strap in physical contact with a terminal of a dry cell for electrically and physically connecting said battery strap to said terminal for fabricating a dry cell storage battery including the steps of: a) det
What is claimed is: 1. A method for soldering a junction defined by a portion of a battery strap in physical contact with a terminal of a dry cell for electrically and physically connecting said battery strap to said terminal for fabricating a dry cell storage battery including the steps of: a) determining the resistivity to current flow of the materials defining said junction to be soldered; b) determining a value of a first voltage which when applied across said junction, having said determined resistivity, will generate a heat within said junction, sufficient to melt a solid solder placed within said junction into a liquid state solder; c) generating a second voltage having said value of said first voltage; d) applying said second voltage across said junction for generating heat within said junction for soldering said portion of said battery strap to said terminal; and e) limiting a duration of application of said second voltage using an ON/OFF timer element in a circuit associated with application of said second voltage. 2. A method as in claim 1 wherein said second voltage is generated within a second coil of a dual coil step-down transformer. 3. A method for fabricating a dry storage battery from a plurality of dry cells comprising the steps of: a) positioning a plurality of dry cells in juxtaposition with respect to one another, with terminals of adjacent dry cells of said plurality of dry cells oriented in opposite orientation, defining a battery pack; b) positioning a battery strap on adjacent dry cells, of said plurality of dry cells, so that a first end of said battery strap connects with a first terminal on a first dry cell of said adjacent dry cells, for defining a first solder joint, and a second end of said battery strap connects with a second terminal of a second dry cell, of said adjacent dry cells for defining a second solder joint; c) making contact between a first probe of a resistance heat solder system and said first end of said battery strap; d) making contacting between a second probe of said resistance heat solder system and said first terminal of said first dry cell; and, e) activating said resistance heat solder system for a timed interval, timed by an ON/OFF timer, for applying a voltage across said first solder joint, between said first probe and said second probe for a predetermined time interval, for heating a collimated path through said first solder joint, for said predetermined time interval for soldering said first solder joint. 4. An apparatus for fabricating a dry storage battery from a plurality of dry cells by soldering a battery strap means to terminals of adjacently positioned dry cells and using a resistance heat solder system for soldering solder joints, comprising: a) a resistance heat solder system including i) a connection to a source of power having a first voltage level for driving said resistance heat solder system, ii) an ON/OFF timer element between said power source and said connection for controlling an ON time interval of said resistance heat solder system; iii) a voltage reducing means for reducing said first voltage level of said source of power to a second voltage level, iv) a probe means for applying a second voltage at said second voltage level across a joint to be soldered, for a predetermined time interval, timed by said ON/OFF timer element, said joint to be soldered defined by a terminal of a dry cell, of said plurality of dry cells, in physical contact with an end section of said battery strap means; and b) said probe means includes a first probe terminal and a second probe terminal, said first probe terminal for contacting said first terminal of said dry cell, said second probe terminal for contacting said end section of said battery strap means defining said joint, for driving said second voltage across said joint during said predetermined time interval. 5. An apparatus as in claim 4 wherein said voltage reducing means includes a step-down transformer driven during said ON time interval. 6. An apparatus as in claim 4 and further including a layer of solder between said terminal of said dry cell and said end section of said battery strap means for liquefying when heat is generated in said joint during said time interval. 7. An apparatus for fabricating a dry cell storage battery from a plurality of dry cells formed to define a battery pack by soldering a battery strap means to terminals of dry cells in juxtaposition using a resistance heat soldering means for soldering junctions defined by a portion of said battery strap and a terminal of a dry cell of said plurality of dry cells comprising: a) a resistance heat solder means including i) a connection to a source of power defined by a first voltage at a first level for driving said resistance heat solder means; ii) a voltage reducing means for reducing said first voltage to a second voltage at a second voltage level; iii) a first terminal probe means and a second terminal probe means coupled to said voltage reducing means for applying said second voltage across a junction defined by said portion of said battery strap and said terminal of said dry cell; b) means for activating said resistance heat solder means when said first terminal probe and said second terminal probe are in contact with opposing portions of said junction; and c) an ON/OFF timer element connected to said activating means for controlling an ON time duration of said activating means. 8. A method for fabricating a dry cell storage battery from a plurality of dry cells using a resistance heat solder apparatus controlled by an ON/OFF timer, for soldering junctions during a timed interval for electrically and physically connecting dry cells comprising the steps of: a) forming a plurality of dry cells into a battery pack with each dry cell of said plurality of dry cells aligned in juxtaposition with an adjacent dry cell of said plurality of dry cells; b) positioning a battery strap means so that a first end portion of said battery strap means forms a first junction with a first terminal of a first dry cell of said plurality of dry cells and a second end portion of said battery strap means forms a second junction with a second terminal of a second dry cell of said plurality of dry cells, said first dry cell aligned in juxtaposition with said second dry cell; c) applying a first voltage generated by a first resistance solder means for a first predetermined time interval, timed by an ON/OFF timer element, across said first junction for heat soldering said first junction; and d) applying a second voltage generated by a second resistance solder means for a second predetermined time interval, timed by said ON/OFF timer element, across said second junction for heat soldering said second junction. 9. A method as in claim 8 wherein said first dry cell and said second dry cell are oriented so that a post terminal of said first dry cell is adjacent a can terminal of said second dry cell. 10. A method as in claim 9 wherein said post terminal is a positive terminal of said each dry cell of said plurality of dry cells and said can terminal is a negative terminal of said each dry cell of said plurality of dry cells. 11. A method as in claim 9 wherein said post terminal is a negative terminal of each said dry cell of said plurality of dry cells and said can terminal is a positive terminal of each said dry cell of said plurality of dry cells. 12. A method as in claim 8 wherein said first dry cell and said second dry cell are oriented so that a post terminal of said first dry cell is adjacent a post terminal of said second dry cell.
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이 특허에 인용된 특허 (16)
Lund David L. (Minneapolis MN) Majumdar Senajit J. (Niles IL) Mullane William E. (Warren OH) Krivanek Louis (Warren OH), Apparatus and method for fusing battery terminals.
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