DE29823117U1 - Electrical device for potentially explosive areas - Google Patents

Electrical device for potentially explosive areas

Info

Publication number
DE29823117U1
DE29823117U1 DE29823117U DE29823117U DE29823117U1 DE 29823117 U1 DE29823117 U1 DE 29823117U1 DE 29823117 U DE29823117 U DE 29823117U DE 29823117 U DE29823117 U DE 29823117U DE 29823117 U1 DE29823117 U1 DE 29823117U1
Authority
DE
Germany
Prior art keywords
electrical
heat
electrical device
embedded
parts
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
DE29823117U
Other languages
German (de)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE29823117U priority Critical patent/DE29823117U1/en
Publication of DE29823117U1 publication Critical patent/DE29823117U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H05K5/06—Hermetically-sealed casings
    • H05K5/065—Hermetically-sealed casings sealed by encapsulation, e.g. waterproof resin forming an integral casing, injection moulding
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/008—Intrinsically safe circuits
    • 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
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • H05K7/20509—Multiple-component heat spreaders; Multi-component heat-conducting support plates; Multi-component non-closed heat-conducting structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H2009/0285—Casings overmoulded over assembled switch or relay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/04—Bases; Housings; Mountings
    • H01H2037/046—Bases; Housings; Mountings being soldered on the printed circuit to be protected
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/04—Bases; Housings; Mountings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • H02H5/045—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using a thermal radiation sensor

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fuses (AREA)

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (5)

1. Elektrisches Gerät für explosionsgefährdete Bereiche mit einer elektrischen Schaltung (2, 3, 4), der über elektrische Leitungen elektrische Energie zuführbar ist, dadurch ge­ kennzeichnet, daß zumindest die Teile der elektrischen Schaltung (2, 3), die im Fehlerfall eine erhöhte thermische Leistung erzeugen können, in eine Vergußmasse (5) eingebettet sind und daß eine thermische Sicherung (4) vorgesehen ist, welche mit der Vergußmasse (5) wärmegekoppelt ist und bei Überschreiten einer Temperaturschwelle die Zufuhr elektri­ scher Energie unterbricht.1. Electrical device for potentially explosive areas with an electrical circuit ( 2 , 3 , 4 ), which can be supplied with electrical energy via electrical lines, characterized in that at least the parts of the electrical circuit ( 2 , 3 ), which in the event of a fault increased Can generate thermal power, are embedded in a potting compound ( 5 ) and that a thermal fuse ( 4 ) is provided which is heat-coupled to the potting compound ( 5 ) and interrupts the supply of electrical energy when a temperature threshold is exceeded. 2. Elektrisches Gerät nach Anspruch 1, dadurch gekenn­ zeichnet, daß die thermische Sicherung (4) mit den wärme­ erzeugenden Schaltungsteilen (2, 3) in die Vergußmasse (5) eingebettet ist.2. Electrical device according to claim 1, characterized in that the thermal fuse ( 4 ) with the heat-generating circuit parts ( 2 , 3 ) is embedded in the sealing compound ( 5 ). 3. Elektrisches Gerät nach Anspruch 1 oder 2, dadurch ge­ kennzeichnet, daß die thermische Sicherung (4) derart in die Vergußmasse (5) eingebettet ist, daß sie die Temperatur im Wärmeübergangsbereich zwischen den wärmeerzeugenden Schal­ tungsteilen (2, 3) und der Oberfläche (6) der Vergußmasse (5) erfaßt.3. Electrical device according to claim 1 or 2, characterized in that the thermal fuse ( 4 ) is embedded in the potting compound ( 5 ) in such a way that they device parts ( 2 , 3 ) and the surface in the heat transfer region between the heat-generating scarf ( 6 ) the sealing compound ( 5 ) is detected. 4. Elektrisches Gerät nach einem der vorhergehenden An­ sprüche, dadurch gekennzeichnet, daß in die Verguß­ masse (24) ein gut wärmeleitender Körper (22) eingebettet ist, der die wärmeerzeugenden Schaltungsteile (20, 21) im wesentlichen umgibt.4. Electrical device according to one of the preceding claims, characterized in that in the casting compound ( 24 ) a good heat-conducting body ( 22 ) is embedded, which surrounds the heat-generating circuit parts ( 20 , 21 ) substantially. 5. Elektrisches Gerät nach einem der vorhergehenden An­ sprüche, dadurch gekennzeichnet, daß es als Feldgerät ausgebildet ist und daß die elektrischen Leitungen (12, 13) an einen Feldbus (10, 11) anschließbar sind.5. Electrical device according to one of the preceding claims, characterized in that it is designed as a field device and that the electrical lines ( 12 , 13 ) to a field bus ( 10 , 11 ) can be connected.
DE29823117U 1998-12-28 1998-12-28 Electrical device for potentially explosive areas Expired - Lifetime DE29823117U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29823117U DE29823117U1 (en) 1998-12-28 1998-12-28 Electrical device for potentially explosive areas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29823117U DE29823117U1 (en) 1998-12-28 1998-12-28 Electrical device for potentially explosive areas

Publications (1)

Publication Number Publication Date
DE29823117U1 true DE29823117U1 (en) 2000-02-03

Family

ID=8067232

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29823117U Expired - Lifetime DE29823117U1 (en) 1998-12-28 1998-12-28 Electrical device for potentially explosive areas

Country Status (1)

Country Link
DE (1) DE29823117U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10235047A1 (en) * 2002-07-31 2004-02-12 Endress + Hauser Gmbh + Co. Kg Electronics housing with integrated heat spreader
DE102021129977A1 (en) 2021-11-17 2023-05-17 Perma-Tec Gmbh & Co. Kg lubricator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643187A1 (en) * 1976-09-24 1978-03-30 Mutzhas Maximilian F Flame-proof lamp housing - has triac and reed relay disconnecting supply when lamp and supply parts are separated
DE29514362U1 (en) * 1995-09-07 1995-11-16 Ibs Schillings Gmbh Electrical assembly with protection class EEx-m

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643187A1 (en) * 1976-09-24 1978-03-30 Mutzhas Maximilian F Flame-proof lamp housing - has triac and reed relay disconnecting supply when lamp and supply parts are separated
DE29514362U1 (en) * 1995-09-07 1995-11-16 Ibs Schillings Gmbh Electrical assembly with protection class EEx-m

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10235047A1 (en) * 2002-07-31 2004-02-12 Endress + Hauser Gmbh + Co. Kg Electronics housing with integrated heat spreader
DE102021129977A1 (en) 2021-11-17 2023-05-17 Perma-Tec Gmbh & Co. Kg lubricator

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Legal Events

Date Code Title Description
R163 Identified publications notified
R207 Utility model specification

Effective date: 20000309

R150 Term of protection extended to 6 years

Effective date: 20020404

R157 Lapse of ip right after 6 years

Effective date: 20050701