EP4578250A1 - Dispositif d'automatisation de terrain - Google Patents

Dispositif d'automatisation de terrain

Info

Publication number
EP4578250A1
EP4578250A1 EP23744407.0A EP23744407A EP4578250A1 EP 4578250 A1 EP4578250 A1 EP 4578250A1 EP 23744407 A EP23744407 A EP 23744407A EP 4578250 A1 EP4578250 A1 EP 4578250A1
Authority
EP
European Patent Office
Prior art keywords
circuit board
field device
board holder
holder
device housing
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.)
Pending
Application number
EP23744407.0A
Other languages
German (de)
English (en)
Inventor
Raphael Schonhardt
Michael LAIS
Vitogiuseppe Di Cosola
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.)
Endress and Hauser SE and Co KG
Original Assignee
Endress and Hauser SE and Co 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 Endress and Hauser SE and Co KG filed Critical Endress and Hauser SE and Co KG
Publication of EP4578250A1 publication Critical patent/EP4578250A1/fr
Pending 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
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
    • H05K5/006—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB characterized by features for holding the PCB within the housing
    • 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
    • H05K5/064—Hermetically-sealed casings sealed by potting, e.g. waterproof resin poured in a rigid casing
    • 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
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
    • H05K5/0056—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB characterized by features for protecting electronic components against vibration and moisture, e.g. potting, holders for relatively large capacitors
    • 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
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0221—Locks; Latches
    • 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
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
    • 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
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1462—Mounting supporting structure in casing or on frame or rack for programmable logic controllers [PLC] for automation or industrial process control

Definitions

  • the invention relates to a field device in automation technology and a method for producing such a field device in automation technology.
  • Field devices that are used in industrial systems are known from the prior art.
  • Field devices are often used in process automation technology as well as in production automation technology.
  • field devices refer to all devices that are used close to the process and deliver or process process-relevant information.
  • Field devices are used to record and/or influence process variables.
  • Measuring devices or sensors are used to record process variables. These are used, for example, for pressure and temperature measurement, conductivity measurement, flow measurement, etc. and record the corresponding process variables pressure, temperature, conductivity, pH value, level, flow, etc.
  • Actuators are used to influence process variables. These are, for example, pumps or valves that can influence the flow of a liquid in a pipe or the level in a container.
  • field devices also include remote I/Os, radio adapters or, in general, devices that are arranged at the field level.
  • Such field devices have a sensor element that is in contact with a process medium, in particular at least twice and/or at least in sections, and which serves to generate a signal that is dependent on the process variable.
  • these field devices have an electronics unit arranged in a housing, the electronics unit serving to process and/or forward signals generated by the sensor unit, in particular electrical and/or electronic signals.
  • the electronics unit includes several circuit boards with components arranged thereon. The circuit boards are usually arranged in a circuit board holder and fixed mechanically. Fig. 1 shows such a circuit board holder, as is known from the prior art.
  • the latching or latching mechanism is usually implemented in such a way that an elongated flexible arm is prepared from a side wall of the circuit board holder, which has a nose on a side located towards the central axis of the circuit board holder, which engages a corresponding notch on the inserted circuit board.
  • the circuit board holder Due to the design and bottom-side arrangement of the latching or latching mechanism, the circuit board holder is penetrated to the outside on its side wall and is therefore no longer tight at these points.
  • a casting compound e.g. Silgel
  • this leak means that it is not possible to cast the circuit board holder before inserting it into the housing of the field device (pre-assembly of the circuit board holder), because the potting compound is not held in the circuit board holder.
  • the circuit board holder must first be inserted into the housing before casting, since the housing serves as an outer shell for the circuit board holder and thus at least partially prevents the casting compound from leaking or reduces leakage.
  • the invention is therefore based on the object of providing a remedy here.
  • An advantageous embodiment of the field device according to the invention for automation technology can provide that the locking nose has an elongated arm prepared from the wall of the circuit board holder and a locking hook located at one end of the elongated arm.
  • the circuit board holder has at least two latching mechanisms for resilient fastening of the at least one circuit board and the at least one circuit board has at least two counter-locking mechanisms corresponding to the respective latching mechanism of the circuit board holder having.
  • the embodiment can provide that the at least two latching mechanisms of the circuit board holder are arranged diametrically to one another and the at least two counter-locking mechanisms of the at least one circuit board are formed diametrically on a circuit board edge of the at least one circuit board, the circuit board edge being at an end opposite to the end inserted into the circuit board holder on the circuit board.
  • a further advantageous embodiment of the field device according to the invention for automation technology can provide that the circuit board holder is designed in the form of a cup.
  • a further advantageous embodiment of the field device according to the invention for automation technology can provide that the circuit board holder is designed in such a way that it has no opening in the outer contour up to the predetermined potting height.
  • the invention further relates to a method for producing a field device for automation technology according to at least one of the previously described embodiments, comprising the following method steps:
  • circuit board holder for holding the at least one circuit board
  • the field device electronics 15 further includes a fourth circuit board 25 serving as a connection electronics 20 with a field contact plug 21, which is arranged in a longitudinal axis of the circuit board 25 on a circuit board edge and is soldered to it.
  • a field contact plug 21 Through the field contact plug 21, data, in particular measured values, and/or energy can be transmitted from the field device 10 to an external unit, for example a higher-level unit or another field device.
  • the field contact plug 21 can be in particular a circular connector, for example an M12 circular connector.
  • the field device housing 12 has a correspondingly designed housing opening 18.
  • the fourth circuit board 25 can also be electrically connected to one of the other circuit boards via a plug and mating connector 15e, 22. Furthermore, electronic components for EMC and/or explosion protection measures 24 can be applied to the circuit boards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Automation & Control Theory (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

L'invention concerne un dispositif d'automatisation de terrain (10), comprenant : un boîtier de dispositif de terrain (12) ; des composants électroniques de dispositif de terrain (15) comprenant au moins une carte de circuit imprimé (15a) ; un support de PCB (16), placé à l'intérieur du boîtier de dispositif de terrain, pour fixer la PCB (15a), ledit support de PCB (16) étant pourvu d'un mécanisme de verrouillage (60a) pour fixer de manière résistive la PCB (15a), la PCB (15a) étant pourvue d'au moins un mécanisme de verrouillage d'accouplement (60b) correspondant au mécanisme de verrouillage sur le support de PCB ; le mécanisme de verrouillage (60a) prend la forme d'un verrou qui fait saillie à partir de ou est introduit dans la paroi, le verrou étant élastique de telle sorte que, dans un état déverrouillé dans lequel au moins la partie du support de PCB n'est pas introduite dans le boîtier de dispositif de terrain, le verrou fait saillie au-delà du contour externe réel de la paroi du support de PCB, tout en étant dans un état verrouillé dans lequel au moins la partie du support de PCB est introduite dans le boîtier de dispositif de terrain, le verrou se déplace dans la direction de la ou des PCB pour se verrouiller dans le mécanisme de verrouillage homologue. )
EP23744407.0A 2022-08-24 2023-07-17 Dispositif d'automatisation de terrain Pending EP4578250A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022121389.7A DE102022121389A1 (de) 2022-08-24 2022-08-24 Feldgerät der Automatisierungstechnik
PCT/EP2023/069790 WO2024041810A1 (fr) 2022-08-24 2023-07-17 Dispositif d'automatisation de terrain

Publications (1)

Publication Number Publication Date
EP4578250A1 true EP4578250A1 (fr) 2025-07-02

Family

ID=87426937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23744407.0A Pending EP4578250A1 (fr) 2022-08-24 2023-07-17 Dispositif d'automatisation de terrain

Country Status (5)

Country Link
US (1) US20260059672A1 (fr)
EP (1) EP4578250A1 (fr)
CN (1) CN119678662A (fr)
DE (1) DE102022121389A1 (fr)
WO (1) WO2024041810A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102024204256A1 (de) * 2024-05-07 2025-11-13 Continental Automotive Technologies GmbH Elektronische Baugruppe

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3302618B2 (ja) * 1997-06-26 2002-07-15 株式会社山武 計器の基板固定用ホルダ
DE10235047A1 (de) * 2002-07-31 2004-02-12 Endress + Hauser Gmbh + Co. Kg Elektronikgehäuse mit integriertem Wärmeverteiler
KR20090083536A (ko) * 2008-01-30 2009-08-04 삼성전자주식회사 전자기기 연결장치
DE102015110350A1 (de) * 2015-06-26 2016-12-29 Endress + Hauser Flowtec Ag Adapter für den Anschluss einer Übertragungsleitung an ein Feldgerät
DE202018101401U1 (de) * 2018-03-13 2018-04-19 Endress+Hauser SE+Co. KG Elektronische Gerät
DE102019123193A1 (de) * 2019-08-29 2021-03-04 Endress+Hauser SE+Co. KG Feldgerät der Automatisierungstechnik

Also Published As

Publication number Publication date
CN119678662A (zh) 2025-03-21
WO2024041810A1 (fr) 2024-02-29
DE102022121389A1 (de) 2024-02-29
US20260059672A1 (en) 2026-02-26

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