EP4578251A1 - Dispositif d'automatisation de terrain - Google Patents

Dispositif d'automatisation de terrain

Info

Publication number
EP4578251A1
EP4578251A1 EP23744153.0A EP23744153A EP4578251A1 EP 4578251 A1 EP4578251 A1 EP 4578251A1 EP 23744153 A EP23744153 A EP 23744153A EP 4578251 A1 EP4578251 A1 EP 4578251A1
Authority
EP
European Patent Office
Prior art keywords
circuit board
field device
board holder
holder
latching mechanism
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
EP23744153.0A
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 EP4578251A1 publication Critical patent/EP4578251A1/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
    • H05K5/06—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
    • 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. In principle, all devices that are used close to the process and that provide or process process-relevant information are referred to as field devices. 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. In addition to the previously mentioned measuring devices and actuators, 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 typically includes the electronics unit several circuit boards with components arranged on them. 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 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 for example 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.
  • circuit board holder arranged in the field device housing for holding the at least one circuit board of the field device electronics, wherein the circuit board holder is adapted to an inner contour of the field device housing at least in a partial section with a circumferential outer contour in such a way that the outer contour of the circuit board holder is essentially flush with the inner contour of the field device housing rests, wherein the circuit board holder has at least one latching mechanism in the area of the partial section for robust fastening of the at least one circuit board, the at least one circuit board having a counter-locking mechanism corresponding to the latching mechanism of the circuit board holder, the latching mechanism of the circuit board holder having a recess in the partial section of the outer contour of the circuit board holder and the counter-locking mechanism of the at least one circuit board has at least one locking lug, the recess and the locking lug being coordinated with one another in such a way that the locking lug can engage in the recess, the at least one circuit board being inserted into the circuit board holder
  • An 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 field device according to one or more of the preceding claims, wherein the circuit board holder is designed such that it has no opening in the outer contour up to the predetermined potting height.
  • the at least one circuit board has at least two locking lugs, which are preferably formed on an end of the circuit board opposite the end of the circuit board that is inserted into the circuit board holder.
  • the embodiment can provide that the at least two locking lugs are designed in such a way that they expand the circuit board holder when the circuit board is inserted into the circuit board holder (16).
  • a further advantageous embodiment of the field device according to the invention for automation technology can provide that the two locking lugs are formed diametrically on a circuit board edge of the at least one circuit board, with the circuit board edge being located on an end of the circuit board opposite the end of the circuit board that is inserted into the circuit board holder.
  • the invention further relates to a method for producing a

Landscapes

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

Abstract

L'invention concerne un dispositif d'automatisation de terrain (10), comprenant : - un boîtier de dispositif de terrain (12) ; - une électronique de dispositif de terrain (15) qui est placée dans le boîtier de dispositif de terrain et comprend au moins une carte de circuit imprimé (15a) ; - un support de carte de circuit imprimé (16), placé à l'intérieur du boîtier de dispositif de terrain, destiné à fixer la ou les cartes de circuit imprimé (15a), ce support de carte de circuit imprimé (16) étant pourvu d'au moins un mécanisme de verrouillage (60a) destiné à fixer de manière résistible la carte de circuit imprimé (15a), la ou les cartes de circuit imprimé (15a) étant pourvues d'un mécanisme de verrouillage homologue (60b) correspondant au mécanisme de verrouillage sur le support de carte de circuit imprimé ; le mécanisme de verrouillage (60a) sur le support de carte de circuit imprimé (16) comprend un renfoncement dans la partie de contour extérieur du support de carte de circuit imprimé (16), et le mécanisme de verrouillage homologue (60b) sur la ou les cartes de circuit imprimé (15a) comprend au moins un loquet, le renfoncement et le loquet étant adaptés l'un à l'autre de manière à ce que le loquet puisse venir s'engager dans le renfoncement, le mécanisme de verrouillage et le mécanisme de verrouillage homologue (60b, 60a) sont formés au-dessus d'un niveau d'enrobage jusqu'auquel le support de carte de circuit imprimé est enrobé d'un composé d'enrobage, de sorte que le mécanisme de verrouillage et le mécanisme de verrouillage homologue (60a, 60b) sont dépourvus d'enrobage.
EP23744153.0A 2022-08-24 2023-07-17 Dispositif d'automatisation de terrain Pending EP4578251A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022121385.4A DE102022121385A1 (de) 2022-08-24 2022-08-24 Feldgerät der Automatisierungstechnik
PCT/EP2023/069789 WO2024041809A1 (fr) 2022-08-24 2023-07-17 Dispositif d'automatisation de terrain

Publications (1)

Publication Number Publication Date
EP4578251A1 true EP4578251A1 (fr) 2025-07-02

Family

ID=87418889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23744153.0A Pending EP4578251A1 (fr) 2022-08-24 2023-07-17 Dispositif d'automatisation de terrain

Country Status (4)

Country Link
EP (1) EP4578251A1 (fr)
CN (1) CN119698931A (fr)
DE (1) DE102022121385A1 (fr)
WO (1) WO2024041809A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE476322T1 (de) * 1990-09-10 1992-07-02 Yokogawa Electric Corp., Musashino, Tokio/Tokyo Gehaeusenanordnung fuer eine elektronische anlage.
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
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
DE102019208213A1 (de) * 2019-06-05 2020-12-10 Siemens Aktiengesellschaft Elektrisches Gerät
DE102019123193A1 (de) * 2019-08-29 2021-03-04 Endress+Hauser SE+Co. KG Feldgerät der Automatisierungstechnik

Also Published As

Publication number Publication date
WO2024041809A1 (fr) 2024-02-29
DE102022121385A1 (de) 2024-02-29
CN119698931A (zh) 2025-03-25

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