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GB1498439A - Electronic component or assembly of components with insulating envelope - Google Patents

Electronic component or assembly of components with insulating envelope

Info

Publication number
GB1498439A
GB1498439A GB2400875A GB2400875A GB1498439A GB 1498439 A GB1498439 A GB 1498439A GB 2400875 A GB2400875 A GB 2400875A GB 2400875 A GB2400875 A GB 2400875A GB 1498439 A GB1498439 A GB 1498439A
Authority
GB
United Kingdom
Prior art keywords
projections
leads
edge surfaces
envelope
assembly
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
Application number
GB2400875A
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.)
Welwyn Electric Ltd
Original Assignee
Welwyn Electric Ltd
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 Welwyn Electric Ltd filed Critical Welwyn Electric Ltd
Priority to GB2400875A priority Critical patent/GB1498439A/en
Publication of GB1498439A publication Critical patent/GB1498439A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/224—Housing; Encapsulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
    • H01C1/024—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being hermetically sealed
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0091—Housing specially adapted for small components
    • H05K5/0095—Housing specially adapted for small components hermetically-sealed

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Resistors (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)

Abstract

1498439 Printed circuit assemblies; resistors WELWYN ELECTRIC Ltd 27 April 1976 [3 June 1975] 24008/75 Headings H1R and HIS A cylindrical resistor (Figs. 1, 2, not shown) comprising an e.g. ceramic insulant body carrying a resistive film with end caps and leads is enclosed in a two part thermoplastic envelope contoured internally to fit the resistor and grooved to retain the leads. The discrete semicylindrical parts have mating edge surfaces with integral knife edge projections each contacting the opposed edge surfaces, and the assembly is subjected to ultrasonic energy and pressure to melt and collapse the projections whereby the two parts are hermetically welded together. Other similar projections may be provided within the internal grooves. An electronic circuit, e.g. printed, may be formed (Figs. 3, 4) on an insulant, e.g. ceramic, substrate 14 comprising resistors, capacitors, transistors and the like with terminal leads 15 extending therefrom. A two part envelope is defined by thermoplastic sections 16, 17 to accommodate the substrate, and have grooves 18 accommodating the leads 15, with engaging mating edge surfaces 19, 20 provided with integral knife edge projections 21, 22 engaging the opposed edge surfaces. After arrangement of sections 16, 17 adjacent the substrate, the assembly is subjected to ultrasonic energy and pressure to melt and collpase the projections and seal the two elements together into an integral envelope.
GB2400875A 1976-04-27 1976-04-27 Electronic component or assembly of components with insulating envelope Expired GB1498439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2400875A GB1498439A (en) 1976-04-27 1976-04-27 Electronic component or assembly of components with insulating envelope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2400875A GB1498439A (en) 1976-04-27 1976-04-27 Electronic component or assembly of components with insulating envelope

Publications (1)

Publication Number Publication Date
GB1498439A true GB1498439A (en) 1978-01-18

Family

ID=10204913

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2400875A Expired GB1498439A (en) 1976-04-27 1976-04-27 Electronic component or assembly of components with insulating envelope

Country Status (1)

Country Link
GB (1) GB1498439A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078001A2 (en) * 1981-10-19 1983-05-04 Nippon Chemi-Con Corporation Electrolytic capacitor and a process for producing the same
FR2554962A1 (en) * 1983-11-14 1985-05-17 Rogers Corp DECOUPLING CAPACITOR AND MANUFACTURING METHOD THEREOF
EP0142458A2 (en) * 1983-11-14 1985-05-22 Rogers Corporation Decoupling capacitor and method of manufacture thereof
FR2604558A1 (en) * 1986-09-26 1988-04-01 Ducati Energia Spa CAPACITOR WITH EXPLOSION-PROOF LID
US4772761A (en) * 1987-05-04 1988-09-20 Amp Incorporated Sealed electrical components and method of making same
GB2281447A (en) * 1993-08-11 1995-03-01 Siemens Matsushita Components Electrical component in an ultrasonic welded plastic package
WO2013037548A1 (en) * 2011-09-16 2013-03-21 Robert Bosch Gmbh Measuring resistor for current sensor and current sensor unit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078001A2 (en) * 1981-10-19 1983-05-04 Nippon Chemi-Con Corporation Electrolytic capacitor and a process for producing the same
EP0078001A3 (en) * 1981-10-19 1984-10-03 Nippon Chemi-Con Corporation Electrolytic capacitor and a process for producing the same
FR2554962A1 (en) * 1983-11-14 1985-05-17 Rogers Corp DECOUPLING CAPACITOR AND MANUFACTURING METHOD THEREOF
EP0142458A2 (en) * 1983-11-14 1985-05-22 Rogers Corporation Decoupling capacitor and method of manufacture thereof
EP0142458A3 (en) * 1983-11-14 1986-11-26 Rogers Corporation Decoupling capacitor and method of manufacture thereof
FR2604558A1 (en) * 1986-09-26 1988-04-01 Ducati Energia Spa CAPACITOR WITH EXPLOSION-PROOF LID
US4772761A (en) * 1987-05-04 1988-09-20 Amp Incorporated Sealed electrical components and method of making same
EP0290171A1 (en) * 1987-05-04 1988-11-09 Amp Incorporated Sealed electrical components and method of making same
GB2281447A (en) * 1993-08-11 1995-03-01 Siemens Matsushita Components Electrical component in an ultrasonic welded plastic package
FR2711462A1 (en) * 1993-08-11 1995-04-28 Siemens Matsushita Components Electrical component made in the manner of a chip.
WO2013037548A1 (en) * 2011-09-16 2013-03-21 Robert Bosch Gmbh Measuring resistor for current sensor and current sensor unit

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee