Abstract:
A connector (60) for disk-shaped batteries (40) including a housing (62) with a battery receiving cavity (74), opposed endwalls (66) having spring arms (68) that extend outwardly from the cavity (74) for retaining the battery (40) in the housing (62), a surface mountable positive terminal (77), and a surface mountable negative terminal (79). The positive and negative terminals (77, 79) are disposed in respective terminal receiving passageways (72) of the housing with spring arm contact sections (80) opposing each other along the housing sidewalls and with surface mountable connecting sections (84) of both the terminals (77, 79) extending outwardly from respective the housing sidewalls (64) at the bottom thereof. The terminals are electrically engageable with battery electrodes on opposed surfaces of the battery, and the surface mountable connecting sections thereof are spaced apart at least the thickness of the battery, being a sufficient distance from each other to prevent bridging therebetween when the connecting sections are soldered to respective circuit pads on a circuit board.
Abstract:
An improved composite battery (10) and intercell connector (16) are disclosed. The intercell connector has a braided cable (28), preferably flat, between two terminal connectors (24, 26) which are secured at its opposite ends, preferably by die-casting, to accommodate intercell movements in the composite battery. The intercell connector preferably has an integral flexible coating (38) over its entire outer surface. Also disclosed are a method and apparatus for manufacture of such intercell connectors.
Abstract:
In accordance with this invention, a novel stick-on peel-off fastener (201), comprising one or more conductive sticky elements (204, 205), sandwiched between one or more terminals (256, 257) of a first object such as an electrical device (250) and one or more terminals (206, 207) of a second object such as battery (202), can keep the battery (202) affixed to the electrical device (250) while the battery (202) supplies power to the electrical device (250). One embodiment of a conductive sticky element includes a layer of conductive adhesive (204, 205), such as a polymer resin that has a number of microscopic silver filings. Another embodiment of a conductive sticky element (304, 305) includes a number of hooks, such as those in Velcro elements. Yet another embodiment of a conductive sticky element (404, 405) includes a magnet that when used with another magnet (454, 455), prevents improper coupling of the two objects (400, 450) due to magnetic repulsion.
Abstract:
A battery of high temperature secondary cells in a battery casing has means enabling multiple electrical connections from outside the casing to respective cells or banks of cells within the casing. Rigid metal elements are secured to a rigid board of electrical insulating material which is stable at the operating temperature of the material to provide respective mutually insulated conducting pathways. The elements are connected by one end to respective cells or banks of cells. Opposite ends of the elements converge to at least one location on the board for connection through the casing.
Abstract:
Electrical connection is maintained between an electrical conductor element (32) and a fragile expanded-metal grid current collector element (12) of a flexible laminate structure rechargeable battery (10) by means of thermally-activated adhesive sheet material (34) which provides physical reinforcement as well as maintaining stable electrically-conductive contact between the elements. Such adhesive materials comprising a metal foil surface (46) may also provide direct electrical connection between current collector or battery electrode elements and external utilization devices.
Abstract:
The invention discloses a connection device for the electric connection between the poles of accumulators which comprises: a connecting electric cable (2) ending at each of its extremities with a conductor ring (3), the hole (4) of which lodges a connecting screw having a fillister head (5) connecting said cable to an electric pole (6) of the accumulator; an insulation coating made of plastic material (1) belonging to the insulating element (10) which coats said connection device, said insulation coating presenting the external shape of a truncated cone, wherein the part having a smaller diameter is sealed with a lid and the part having a larger diameter rests on the surface (9) of the lid of the accumulator; a lid (90) for sealing each insulation coating. Said insulation coating (1) presents a first annular wall (11) having the shape of a cylinder of the same diameter as the head of the connecting screw having its base on the surface of the conductor ring in contact with said head (52) of the connecting screw (5) and extending itself for a certain section along the cylindrical wall of said head (52) of said screw (5), said annular wall co-operating with said screw head in order to ensure a watertight seal preventing the leakage of electrolyte.
Abstract:
A battery comprises a plurality of high temperature cells. At least one electrically conductive structural member in the battery is made of a composite material. The composite material comprises a layer of copper sandwiched between a first and second layer of steel.
Abstract:
A contact assembly provides a reliable contact between a battery pack and an electronic device. The assembly includes a plurality of contact members and an insulator molded to the contact members. The plurality of contact members preferably include a positive contact member and a negative contact member each having a weldable surface and a selectively plated surface. The weldable surfaces are welded to the positive and negative terminals of the battery pack, respectively. The selectively plated surfaces are preferably plated with gold to ensure a good connection between the device and the battery pack. The insulator serves to fix the contact members relative to each other. In addition, the insulator facilitates minimization of the battery pack size by enabling the contacts to be placed very close to each other.
Abstract:
The invention discloses an element (1; 201) to cover the connectors (2) connecting the poles (31, 32) of the elements of an electric accumulator (3) and consists of a hollow body (10) which receives the body (20) of one of said connectors (2). At least one part of said hollow body (10) presents a shaped profile (17) suited to realize an elastically flexible structure which allows the variation of the length of said covering element (1), whenever it is strained by an axial force (18). Said variation of length allows the coupling of the same covering element (1; 201) with connectors (2) presenting lengths differing from one another.
Abstract:
An improved electrical connector system for joining an electrode and a terminal in an electrochemical cell is provided in which physical force is used to maintain the electrical contact. An extension member provided on the electrode is adapted to fit within a key-hole shaped opening provided in the terminal. A core member provided within the extension member is formed of a material having a higher thermal expansion than either the extension member or the terminal. Upon heating, the core member expands greater than both the terminal and the extension member, thereby physically forcing the extension member into electrical contact with the terminal.