WO2015155426A1 - Electrical cabinet intended for uses in hazardous environments - Google Patents
Electrical cabinet intended for uses in hazardous environments Download PDFInfo
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- WO2015155426A1 WO2015155426A1 PCT/FR2015/050432 FR2015050432W WO2015155426A1 WO 2015155426 A1 WO2015155426 A1 WO 2015155426A1 FR 2015050432 W FR2015050432 W FR 2015050432W WO 2015155426 A1 WO2015155426 A1 WO 2015155426A1
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- cabinet
- opening
- heat
- wall
- electrical
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
Definitions
- the present invention relates to the technical field of electrical cabinets intended for applications in hazardous environments.
- risk environments means mainly environments, mainly industrial, presenting risks of fire, explosion and / or electric shocks.
- environments means mainly environments, mainly industrial, presenting risks of fire, explosion and / or electric shocks.
- SEVESO zones well known to those skilled in the art.
- a heat removal technique consists in equipping the electrical cabinet with one or more heat dissipation means, such as a radiator for example.
- the radiators used generally have a plurality of heat exchange fins, and are affixed against one of the internal walls of the cabinet so as to dissipate the internal heat. This heat is in particular transferred to the fins and then transferred to the wall to the outside of the cabinet.
- the invention tends to provide an electrical cabinet for applications in hazardous environments that allows to contain electrical components in an efficient manner so that their potential power is increased.
- An objective of the electrical cabinet according to the invention is to dissipate optimally the heat generated by the electrical components inside said cabinet, while maintaining the characteristics of robustness of the steel.
- Another object of the invention is to provide such a cabinet which is not heavier and more cumbersome than an electrical cabinet for risk environments of the state of the art.
- an electrical cabinet has been developed for applications in hazardous environments.
- Said cabinet comprises at least one upper wall, one bottom wall, one front wall, one bottom wall and two side walls, assembled to each other so as to create a sealed and explosion-proof enclosure.
- the cabinet comprises:
- At least one aluminum heat dissipating means comprising a plurality of heat exchange fins projecting from a support plate, said fins being engaged inside the opening so as to communicate with the outside of the cabinet, said support plate being fixed inside the cabinet and on the wall so as to close the opening, and; an explosion-proof seal arranged between the support plate and the wall of the cabinet so as to seal the enclosure.
- the heat generated inside the cabinet is dissipated in an optimal way. Indeed, the heat is transferred to the aluminum plate of the heat dissipation means. This heat transfer is optimal given the good thermal conductivity of aluminum, especially higher than that of steel.
- This heat is then transferred to the fins which are in communication with the outside of the cabinet to be cooled.
- These fins are made of aluminum and offer a large area of heat exchange to effectively dissipate the heat present in the enclosure.
- the heat dissipation means is aluminum and is therefore relatively light.
- the cabinet according to the invention is therefore no heavier than a cabinet of the state of the art.
- the perforated portion of the wall which has the opening further lighten the cabinet.
- the cabinet according to the invention is lighter than that of the state of the art and allows a better dissipation of the heat generated by electrical components. In this way, the risks of overheating are reduced, and the performance of the electrical components are not impaired.
- the cabinet according to the invention has a greater potential power than that of the state of the art. A power potential equal to that of the state of the art, the cabinet according to the invention can be lightened and reduced in size.
- the cabinet comprises a protective casing fixed to the outside of the cabinet so as to cover the opening and to protect the fins of heat exchange.
- the housing has two openings allowing air circulation, especially by convection, inside said housing.
- one of the openings of the housing is a lower opening and the other of the openings is an upper opening.
- the circulation of air is thus more efficient and therefore the heat dissipation is optimal. It follows that the potential power of the cabinet is increased or that the cabinet can be lightened and reduced in size.
- FIG. 1 is a diagrammatic representation in perspective of an electrical cabinet according to the invention
- Figure 2 is a schematic representation of an electrical cabinet similar to that of Figure 1, the front wall of the cabinet being open;
- FIG. 3 is an exploded schematic representation of a heat dissipation means implemented in the invention, and one of the walls of the cabinet.
- said cabinet (1) comprises at least one upper wall (2), one bottom wall (3), one front wall (4), a bottom wall (5) and two side walls (6).
- These walls (2, 3, 4, 5 and 6) are in particular made of steel and have a substantial thickness, for example 8 cm thick, contributing to the weight of such a cabinet. These walls are assembled to each other so as to create a chamber (7) with a sealed and explosion-proof atmosphere for receiving electrical components (8).
- the sealed enclosure (7) must be able to resist fires, explosions and / or electric shocks or any other risk.
- the enclosure (7) must isolate the electrical components (8) optimally and safely to meet the ATEX and SEVESO regulations well known to those skilled in the art.
- the electrical components (8) confined in the cabinet (1) generate heat by Joule effect. This heat impairs the efficiency and performance of the electrical components (8) and therefore decreases the potential power of the electrical cabinet (1).
- the cabinet (1) therefore integrates at least one heat dissipation means (9).
- at least one opening (10) is formed in one of the walls (2, 3, 4, 5, and 6) of said electrical cabinet (1).
- the cabinet (1) has three openings
- the heat dissipation means (9) are aluminum and each comprise a plurality of heat exchange fins (11) projecting from a support plate (12).
- Each of the three dissipation means (9) has its fins (11) engaged inside one of the openings (10) so that said heat exchange fins (11) communicate with the outside of the cabinet (1).
- each dissipation means (9) are fixed inside the cabinet (1) and on the corresponding wall so as to close off the corresponding opening (10).
- An explosion-proof seal (not shown) is arranged between the support plate (12) and the wall of the cabinet (1) so as to seal the enclosure (7).
- the housings (13) are for example in the form of a steel plate (13a) fixed by means of fixing ribs (13b) projecting from the wall of the cabinet (1) in the vicinity of the opening (10).
- the protective casings (13) are particularly open at their upper (14) and lower (15) so as to create a chimney effect and a circulation of air to further dissipate the heat of the heat exchange fins (11). ).
- the electrical components (8) confined in the cabinet (1) can be directly attached to the support plate (12) of the heat dissipation means (9) so as to dissipate all the more effectively the heat generated by said electrical components (8).
- the heat generated by the electrical components (8) is transferred to the support plate (12) of aluminum.
- the heat is then dissipated from the support plate (12) to the heat exchange fins (11) which are, in turn, in communication with the outside of the cabinet (1).
- the heat is dissipated by said fins (11) which form a large heat exchange surface with the outside of the cabinet (1).
- the air flow generated by the casing (13) improves this dissipation of heat by a chimney effect. Indeed, the hot air is discharged through the upper opening (14) of the housing (13) and cold air is thus sucked by the lower opening (15) of the housing (13), which cold air dissipates the heat of heat exchange fins (11).
- the cabinet (1) therefore has an increased potential power compared to the cabinets of the state of the art for an equal volume of the enclosure (7).
- the cabinet (1) according to the invention can be lightened and reduced in size compared to that of the state of the art.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
ARMOIRE ÉLECTRIQUE DESTINÉE AUX APPLICATIONS EN MILIEUX A RISQUES ELECTRICAL CABINET FOR APPLICATIONS IN RISKY ENVIRONMENTS
DOMAINE TECHNIQUE La présente invention concerne le domaine technique des armoires électriques destinées aux applications en milieux à risques. TECHNICAL FIELD The present invention relates to the technical field of electrical cabinets intended for applications in hazardous environments.
Par milieux à risques, on entend notamment les milieux, principalement industriels, présentant des risques d'incendie, d'explosion et/ou de chocs électriques. On peut citer parmi les zones à risques classées, les zones soumises à la réglementation ATEX mais également les zones dites SEVESO, bien connues de l'homme du métier. For risk environments, means mainly environments, mainly industrial, presenting risks of fire, explosion and / or electric shocks. Among the classified risk zones, the areas subject to the ATEX regulations but also the so-called SEVESO zones, well known to those skilled in the art.
ART ANTERIEUR Les armoires électriques pour milieux à risques sont généralement constituées d'acier et présentent l'inconvénient d'être relativement lourdes et encombrantes. Ces armoires comprennent généralement une paroi supérieure, une paroi inférieure, une paroi de face, une paroi de fond et deux parois latérales, assemblées les unes aux autres de manière à créer une enceinte à atmosphère étanche et antidéflagrante. La paroi de face présente ou consiste généralement en une porte permettant l'accès à l'intérieur de ladite armoire, et généralement boulonnée sur le reste de l'armoire. Les composants électriques confinés à l'intérieur desdites armoires génèrent de la chaleur, notamment par effet Joule, qui nécessite d'être évacuée pour éviter les problèmes de surchauffe et de baisse de puissance potentielle de ladite armoire, et susceptible d'entraîner des dysfonctionnements. PRIOR ART Electrical cabinets for hazardous environments are generally made of steel and have the disadvantage of being relatively heavy and bulky. These cabinets generally comprise an upper wall, a bottom wall, a front wall, a bottom wall and two side walls, assembled to each other so as to create a chamber with a sealed and explosion-proof atmosphere. The face wall presents or generally consists of a door allowing access to the interior of said cabinet, and generally bolted to the rest of the cabinet. The electrical components confined within said cabinets generate heat, in particular by Joule effect, which needs to be evacuated to avoid the problems of overheating and potential power drop of said cabinet, and likely to cause malfunctions.
Une technique d'évacuation de la chaleur consiste à équiper l'armoire électrique d'un ou plusieurs moyens de dissipation thermique, tel qu'un radiateur par exemple. A heat removal technique consists in equipping the electrical cabinet with one or more heat dissipation means, such as a radiator for example.
Les radiateurs mis en œuvre présentent généralement une pluralité d'ailettes d'échange thermique, et sont apposés contre l'une des parois internes de l'armoire de manière à dissiper la chaleur interne. Cette chaleur est notamment transférée aux ailettes puis transférée à la paroi jusqu'à l'extérieur de l'armoire. The radiators used generally have a plurality of heat exchange fins, and are affixed against one of the internal walls of the cabinet so as to dissipate the internal heat. This heat is in particular transferred to the fins and then transferred to the wall to the outside of the cabinet.
Cette solution est peu efficace étant donné que la dissipation de chaleur via le radiateur en contact avec l'une des parois est médiocre. Une autre solution consiste à usiner directement des ailettes sur l'une des parois de l'armoire. Cependant cette solution est peu efficace en termes de dissipation thermique étant donné que les armoires sont généralement constituées d'acier, connu pour être un dissipateur de chaleur médiocre. This solution is inefficient since the heat dissipation via the radiator in contact with one of the walls is poor. Another solution is to machine fins directly on one of the walls of the cabinet. However, this solution is not very efficient in terms of heat dissipation since the cabinets are generally made of steel, known to be a poor heat sink.
Les solutions précitées sont peu efficaces et dissipent peu la chaleur. Il s'ensuit donc une limitation en puissance des composants électriques confinés dans l'armoire. The aforementioned solutions are inefficient and dissipate little heat. It follows therefore a power limitation of the electrical components confined in the cabinet.
EXPOSE DE L'INVENTION SUMMARY OF THE INVENTION
Ainsi donc, l'invention tend à proposer une armoire électrique destinée aux applications en milieux à risques qui permette de confiner des composants électriques d'une manière efficace de sorte à ce que leur puissance potentielle soit augmentée. Un objectif de l'armoire électrique selon l'invention est de dissiper d'une manière optimale la chaleur générée par les composants électriques à l'intérieur de ladite armoire, tout en conservant les caractéristiques de robustesse de l'acier. Thus, the invention tends to provide an electrical cabinet for applications in hazardous environments that allows to contain electrical components in an efficient manner so that their potential power is increased. An objective of the electrical cabinet according to the invention is to dissipate optimally the heat generated by the electrical components inside said cabinet, while maintaining the characteristics of robustness of the steel.
Un autre objectif de l'invention est de fournir une telle armoire qui ne soit pas plus lourde et encombrante qu'une armoire électrique pour milieux à risques de l'état de la technique. Another object of the invention is to provide such a cabinet which is not heavier and more cumbersome than an electrical cabinet for risk environments of the state of the art.
Afin de résoudre les problèmes précités, il a été mis au point une armoire électrique destinée aux applications en milieux à risques. Ladite armoire comprend au moins une paroi supérieure, une paroi inférieure, une paroi de face, une paroi de fond et deux parois latérales, assemblées les unes aux autres de manière à créer une enceinte à atmosphère étanche et antidéflagrante. In order to solve the aforementioned problems, an electrical cabinet has been developed for applications in hazardous environments. Said cabinet comprises at least one upper wall, one bottom wall, one front wall, one bottom wall and two side walls, assembled to each other so as to create a sealed and explosion-proof enclosure.
Selon l'invention, l'armoire comprend : According to the invention, the cabinet comprises:
au moins une ouverture ménagée dans l'une de ses parois ; at least one opening in one of its walls;
- au moins un moyen de dissipation thermique en aluminium comprenant une pluralité d'ailettes d'échange thermique faisant saillies à partir d'une plaque support, lesdites ailettes étant engagées à l'intérieur de l'ouverture de manière à communiquer avec l'extérieur de l'armoire, ladite plaque support étant fixée à l'intérieur de l'armoire et sur la paroi de manière à obturer l'ouverture, et ; un joint antidéflagrant agencé entre la plaque support et la paroi de l'armoire de manière à assurer l'étanchéité de l'enceinte. at least one aluminum heat dissipating means comprising a plurality of heat exchange fins projecting from a support plate, said fins being engaged inside the opening so as to communicate with the outside of the cabinet, said support plate being fixed inside the cabinet and on the wall so as to close the opening, and; an explosion-proof seal arranged between the support plate and the wall of the cabinet so as to seal the enclosure.
Ainsi, la chaleur générée à l'intérieur de l'armoire est dissipée d'une manière optimale. En effet, la chaleur est transférée à la plaque en aluminium du moyen de dissipation thermique. Ce transfert de chaleur est optimal étant donnée la bonne conductivité thermique de l'aluminium, notamment plus élevée que celle de l'acier. Thus, the heat generated inside the cabinet is dissipated in an optimal way. Indeed, the heat is transferred to the aluminum plate of the heat dissipation means. This heat transfer is optimal given the good thermal conductivity of aluminum, especially higher than that of steel.
Cette chaleur est ensuite transférée aux ailettes qui sont en communication avec l'extérieur de l'armoire pour être refroidies. Ces ailettes sont en aluminium et offrent une surface importante d'échange thermique pour dissiper d'une manière efficace la chaleur présente dans l'enceinte. This heat is then transferred to the fins which are in communication with the outside of the cabinet to be cooled. These fins are made of aluminum and offer a large area of heat exchange to effectively dissipate the heat present in the enclosure.
Le moyen de dissipation thermique est en aluminium et est donc relativement léger. L'armoire selon l'invention n'est donc pas plus lourde qu'une armoire de l'état de la technique. De plus, la partie ajourée de la paroi qui présente l'ouverture allège davantage l'armoire. The heat dissipation means is aluminum and is therefore relatively light. The cabinet according to the invention is therefore no heavier than a cabinet of the state of the art. In addition, the perforated portion of the wall which has the opening further lighten the cabinet.
Ainsi, l'armoire selon l'invention est plus légère que celle de l'état de la technique et permet une meilleure dissipation de la chaleur générée par des composants électriques. De cette manière, les risques de surchauffe sont réduits, et les performances des composants électriques ne sont pas altérées. A encombrement égal, l'armoire selon l'invention possède une plus grande puissance potentielle que celle de l'état de la technique. A puissance potentielle égale avec celle de l'état de la technique, l'armoire selon l'invention peut donc être allégée et diminuée en encombrement. Thus, the cabinet according to the invention is lighter than that of the state of the art and allows a better dissipation of the heat generated by electrical components. In this way, the risks of overheating are reduced, and the performance of the electrical components are not impaired. At equal size, the cabinet according to the invention has a greater potential power than that of the state of the art. A power potential equal to that of the state of the art, the cabinet according to the invention can be lightened and reduced in size.
Avantageusement, l'armoire comprend un carter de protection fixé à l'extérieur de l'armoire de manière à recouvrir l'ouverture et à protéger les ailettes d'échange thermique. De préférence, et pour améliorer la dissipation de la chaleur, le carter présente deux ouvertures permettant une circulation d'air, notamment par convection, à l'intérieur dudit carter. Advantageously, the cabinet comprises a protective casing fixed to the outside of the cabinet so as to cover the opening and to protect the fins of heat exchange. Preferably, and to improve the dissipation of heat, the housing has two openings allowing air circulation, especially by convection, inside said housing.
D'une manière avantageuse, et pour créer un effet de cheminée, l'une des ouvertures du carter est une ouverture inférieure et l'autre des ouvertures est une ouverture supérieure. La circulation d'air est ainsi plus efficace et donc la dissipation thermique est optimale. Il s'ensuit que la puissance potentielle de l'armoire est augmentée ou que l'armoire peut être allégée et diminuée en encombrement. BREVE DESCRIPTION DES DESSINS Advantageously, and to create a chimney effect, one of the openings of the housing is a lower opening and the other of the openings is an upper opening. The circulation of air is thus more efficient and therefore the heat dissipation is optimal. It follows that the potential power of the cabinet is increased or that the cabinet can be lightened and reduced in size. BRIEF DESCRIPTION OF THE DRAWINGS
D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est réalisée ci-après, à titre indicatif et nullement limitatif, en référence aux figures annexées, dans lesquelles : la figure 1 est une représentation schématique en perspective d'une armoire électrique selon l'invention ; Other features and advantages of the invention will emerge clearly from the description which is given hereinafter, by way of indication and in no way limiting, with reference to the appended figures, in which: FIG. 1 is a diagrammatic representation in perspective of an electrical cabinet according to the invention;
la figure 2 est une représentation schématique d'une armoire électrique similaire à celle de la figure 1, la paroi de face de l'armoire étant ouverte ; Figure 2 is a schematic representation of an electrical cabinet similar to that of Figure 1, the front wall of the cabinet being open;
- la figure 3 est une représentation schématique éclatée d'un moyen de dissipation thermique mis en œuvre dans l'invention, et de l'une des parois de l'armoire. - Figure 3 is an exploded schematic representation of a heat dissipation means implemented in the invention, and one of the walls of the cabinet.
EXPOSE DETAILLE DE L'INVENTION DETAILED DESCRIPTION OF THE INVENTION
En référence aux figures 1 à 3, qui représentent une armoire électrique (1) destinée aux applications en milieux à risques, ladite armoire (1) comprend au moins une paroi supérieure (2), une paroi inférieure (3), une paroi de face (4), une paroi de fond (5) et deux parois latérales (6). With reference to FIGS. 1 to 3, which represent an electrical cabinet (1) intended for applications in hazardous environments, said cabinet (1) comprises at least one upper wall (2), one bottom wall (3), one front wall (4), a bottom wall (5) and two side walls (6).
Ces parois (2, 3, 4, 5 et 6) sont notamment réalisées en acier et présentent une épaisseur conséquente, par exemple 8 cm d'épaisseur, contribuant au poids conséquent d'une telle armoire. Ces parois sont assemblées les unes aux autres de manière à créer une enceinte (7) à atmosphère étanche et antidéflagrante pour la réception de composants électriques (8). These walls (2, 3, 4, 5 and 6) are in particular made of steel and have a substantial thickness, for example 8 cm thick, contributing to the weight of such a cabinet. These walls are assembled to each other so as to create a chamber (7) with a sealed and explosion-proof atmosphere for receiving electrical components (8).
L'enceinte étanche (7) doit permettre de résister aux incendies, explosions et/ou chocs électriques ou à tout autre risque. L'enceinte (7) doit isoler les composants électriques (8) d'une manière optimale et sécuritaire pour répondre aux réglementations ATEX et SEVESO bien connues de l'homme du métier. The sealed enclosure (7) must be able to resist fires, explosions and / or electric shocks or any other risk. The enclosure (7) must isolate the electrical components (8) optimally and safely to meet the ATEX and SEVESO regulations well known to those skilled in the art.
Les composants électriques (8) confinés dans l'armoire (1) génèrent de la chaleur par effet Joule. Cette chaleur nuit à l'efficacité et aux performances des composants électriques (8) et donc diminue la puissance potentielle de l'armoire électrique (1). L'armoire (1) intègre donc au moins un moyen de dissipation thermique (9). A cet effet, au moins une ouverture (10) est ménagée dans l'une des parois (2, 3, 4, 5, et 6) de ladite armoire électrique (1). Dans le mode de réalisation illustré aux figures, l'armoire (1) présente trois ouverturesThe electrical components (8) confined in the cabinet (1) generate heat by Joule effect. This heat impairs the efficiency and performance of the electrical components (8) and therefore decreases the potential power of the electrical cabinet (1). The cabinet (1) therefore integrates at least one heat dissipation means (9). For this purpose, at least one opening (10) is formed in one of the walls (2, 3, 4, 5, and 6) of said electrical cabinet (1). In the embodiment illustrated in the figures, the cabinet (1) has three openings
(10) , notamment ménagées dans les parois latérales (6) et la paroi de fond (5), et trois moyens de dissipation thermique (9). (10), in particular formed in the side walls (6) and the bottom wall (5), and three heat dissipation means (9).
En référence à la figure 3, les moyens de dissipation thermique (9) sont en aluminium et comprennent chacun une pluralité d'ailettes d'échange thermique (11) faisant saillies à partir d'une plaque support (12). Referring to Figure 3, the heat dissipation means (9) are aluminum and each comprise a plurality of heat exchange fins (11) projecting from a support plate (12).
Chacun des trois moyens de dissipation (9) voit ses ailettes (11) engagées à l'intérieur de l'une des ouvertures (10) de sorte à ce que lesdites ailettes d'échange thermique (11) communiquent avec l'extérieur de l'armoire (1). Each of the three dissipation means (9) has its fins (11) engaged inside one of the openings (10) so that said heat exchange fins (11) communicate with the outside of the cabinet (1).
Les plaques supports (12) de chaque moyen de dissipation (9) sont fixées à l'intérieur de l'armoire (1) et sur la paroi correspondante de manière à obturer l'ouverture (10) correspondante. Un joint antidéflagrant (non représenté) est agencé entre la plaque support (12) et la paroi de l'armoire (1) de manière à assurer l'étanchéité de l'enceinte (7). The support plates (12) of each dissipation means (9) are fixed inside the cabinet (1) and on the corresponding wall so as to close off the corresponding opening (10). An explosion-proof seal (not shown) is arranged between the support plate (12) and the wall of the cabinet (1) so as to seal the enclosure (7).
Un carter de protection (13), par exemple en acier, est fixé à l'extérieur de l'armoire (1) de manière à recouvrir chaque ouverture (10) et à protéger les ailettes d'échange thermiqueA protective casing (13), for example made of steel, is fixed outside the cabinet (1) so as to cover each opening (10) and to protect the heat exchange fins
(11) . Les carters (13) se présentent par exemple sous la forme d'une plaque en acier (13a) fixée par l'intermédiaire de nervures de fixation (13b) faisant saillies de la paroi de l'armoire (1) au voisinage de l'ouverture (10). (11). The housings (13) are for example in the form of a steel plate (13a) fixed by means of fixing ribs (13b) projecting from the wall of the cabinet (1) in the vicinity of the opening (10).
Les carters de protection (13) sont notamment ouverts à leur partie supérieure (14) et inférieure (15) de manière à créer un effet de cheminée et une circulation d'air permettant de dissiper davantage la chaleur des ailettes d'échange thermique (11). The protective casings (13) are particularly open at their upper (14) and lower (15) so as to create a chimney effect and a circulation of air to further dissipate the heat of the heat exchange fins (11). ).
Comme cela est représenté sur la figure 2, les composants électriques (8) confinés dans l'armoire (1) peuvent être directement fixés sur la plaque support (12) des moyens de dissipation thermique (9) de manière à dissiper d'autant plus efficacement la chaleur générée par lesdits composants électriques (8). Ainsi, lors de l'utilisation de l'armoire (1), la chaleur générée par les composants électriques (8) est transférée à la plaque support (12) en aluminium. La chaleur est ensuite dissipée de la plaque support (12) vers les ailettes d'échange thermique (11) qui sont, quant à elles, en communication avec l'extérieur de l'armoire (1). La chaleur est donc dissipée par lesdites ailettes (11) qui forment une importante surface d'échange thermique avec l'extérieur de l'armoire (1). La circulation d'air générée par le carter (13) améliore cette dissipation de la chaleur par un effet de cheminée. En effet, l'air chaud est évacué par l'ouverture supérieure (14) du carter (13) et de l'air froid est ainsi aspiré par l'ouverture inférieure (15) du carter (13), lequel air froid dissipe la chaleur des ailettes d'échange thermique (11). As shown in Figure 2, the electrical components (8) confined in the cabinet (1) can be directly attached to the support plate (12) of the heat dissipation means (9) so as to dissipate all the more effectively the heat generated by said electrical components (8). Thus, when using the cabinet (1), the heat generated by the electrical components (8) is transferred to the support plate (12) of aluminum. The heat is then dissipated from the support plate (12) to the heat exchange fins (11) which are, in turn, in communication with the outside of the cabinet (1). The heat is dissipated by said fins (11) which form a large heat exchange surface with the outside of the cabinet (1). The air flow generated by the casing (13) improves this dissipation of heat by a chimney effect. Indeed, the hot air is discharged through the upper opening (14) of the housing (13) and cold air is thus sucked by the lower opening (15) of the housing (13), which cold air dissipates the heat of heat exchange fins (11).
La chaleur est dissipée d'une manière optimale et l'armoire (1) possède donc une puissance potentielle augmentée par rapport aux armoires de l'état de la technique pour un volume égal de l'enceinte (7). A puissance potentielle égale, l'armoire (1) selon l'invention peut être allégée et diminuée en encombrement par rapport à celle de l'état de la technique. The heat is optimally dissipated and the cabinet (1) therefore has an increased potential power compared to the cabinets of the state of the art for an equal volume of the enclosure (7). At equal potential power, the cabinet (1) according to the invention can be lightened and reduced in size compared to that of the state of the art.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15709724.7A EP3130046A1 (en) | 2014-04-10 | 2015-02-23 | Electrical cabinet intended for uses in hazardous environments |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1453177A FR3019944B1 (en) | 2014-04-10 | 2014-04-10 | ELECTRICAL CABINET FOR APPLICATIONS IN HIGH RISK ENVIRONMENTS |
| FR1453177 | 2014-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015155426A1 true WO2015155426A1 (en) | 2015-10-15 |
Family
ID=51352550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2015/050432 Ceased WO2015155426A1 (en) | 2014-04-10 | 2015-02-23 | Electrical cabinet intended for uses in hazardous environments |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3130046A1 (en) |
| FR (1) | FR3019944B1 (en) |
| WO (1) | WO2015155426A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845958A (en) * | 2017-12-14 | 2018-03-27 | 国网山东省电力公司龙口市供电公司 | A dust-proof and heat-dissipating device for a power distribution cabinet |
| CN108770269A (en) * | 2018-07-24 | 2018-11-06 | 埃夫特智能装备股份有限公司 | A kind of robot control cabinet of high leakproofness and high-cooling property |
| CN114204440A (en) * | 2021-12-08 | 2022-03-18 | 二工防爆科技股份有限公司 | Explosion-proof power distribution cabinet |
| CN114361993A (en) * | 2022-01-12 | 2022-04-15 | 云南捷拓科技有限公司 | An outdoor cooling type monitoring waterproof box |
| RU2793276C2 (en) * | 2018-07-27 | 2023-03-30 | Р. Шталь Шальтгерете Гмбх | Explosion-proof housing with split cover |
| WO2023097649A1 (en) * | 2021-12-03 | 2023-06-08 | 二工防爆科技股份有限公司 | Heat dissipation and explosion-proof electric appliance cabinet |
| CN117134537A (en) * | 2023-08-31 | 2023-11-28 | 江苏品星防爆电机有限公司 | Recoverable shell of explosion-proof motor |
| US12053657B2 (en) | 2018-07-27 | 2024-08-06 | R. Stahl Schaltgeräte GmbH | Explosion-proof housing with split cover |
| EP4572044A1 (en) * | 2023-12-13 | 2025-06-18 | ABB Schweiz AG | Cooling system for electrical enclosures |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394630A (en) * | 2017-07-17 | 2017-11-24 | 重庆市巨吉机电设备有限公司 | A kind of high reliability power distribution cabinet |
| CN108834367A (en) * | 2018-06-26 | 2018-11-16 | 郑州国知网络技术有限公司 | A kind of cabinet of Computer Service good heat dissipation effect |
| DE102019102505B4 (en) * | 2019-01-31 | 2021-09-30 | R. Stahl Schaltgeräte GmbH | Explosion-proof device with flameproof gas flow path and heat sink |
| CN110234208A (en) * | 2019-04-03 | 2019-09-13 | 四川宝石机械石油钻头有限责任公司 | It impulses for roller negative pressure and handles sled system anti-explosion cabinet |
| CN114696236B (en) * | 2022-05-31 | 2022-08-23 | 宁波达航数据技术有限公司 | Integration lithium electricity power cabinet |
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| JPS62178710U (en) * | 1986-04-30 | 1987-11-13 | ||
| JPS63157994U (en) * | 1987-04-01 | 1988-10-17 | ||
| WO2007107178A1 (en) * | 2006-03-20 | 2007-09-27 | R. Stahl Schaltgeräte GmbH | Housing having heat bridge |
| JP2009027817A (en) * | 2007-07-18 | 2009-02-05 | Fuji Electric Holdings Co Ltd | switchboard |
| CN103702547A (en) * | 2013-12-13 | 2014-04-02 | 常州联力自动化科技有限公司 | Heat pipe radiator of anti-explosion shell |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201278437Y (en) * | 2008-05-05 | 2009-07-22 | 杨树昌 | Water proof dust proof and explosion preventing centralized heat radiation sealed electricity distribution cabinet |
| CN202424484U (en) * | 2012-01-12 | 2012-09-05 | 湖南奥峰重工有限公司 | Anti-explosion variable-frequency governor used on narrow-gauge traction anti-explosion electric locomotive |
-
2014
- 2014-04-10 FR FR1453177A patent/FR3019944B1/en active Active
-
2015
- 2015-02-23 WO PCT/FR2015/050432 patent/WO2015155426A1/en not_active Ceased
- 2015-02-23 EP EP15709724.7A patent/EP3130046A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62178710U (en) * | 1986-04-30 | 1987-11-13 | ||
| JPS63157994U (en) * | 1987-04-01 | 1988-10-17 | ||
| WO2007107178A1 (en) * | 2006-03-20 | 2007-09-27 | R. Stahl Schaltgeräte GmbH | Housing having heat bridge |
| JP2009027817A (en) * | 2007-07-18 | 2009-02-05 | Fuji Electric Holdings Co Ltd | switchboard |
| CN103702547A (en) * | 2013-12-13 | 2014-04-02 | 常州联力自动化科技有限公司 | Heat pipe radiator of anti-explosion shell |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845958A (en) * | 2017-12-14 | 2018-03-27 | 国网山东省电力公司龙口市供电公司 | A dust-proof and heat-dissipating device for a power distribution cabinet |
| CN107845958B (en) * | 2017-12-14 | 2023-10-20 | 国网山东省电力公司龙口市供电公司 | A dust-proof heat dissipation device for power distribution cabinets |
| CN108770269A (en) * | 2018-07-24 | 2018-11-06 | 埃夫特智能装备股份有限公司 | A kind of robot control cabinet of high leakproofness and high-cooling property |
| CN108770269B (en) * | 2018-07-24 | 2023-12-01 | 埃夫特智能装备股份有限公司 | High leakproofness and high thermal diffusivity's robotic control cabinet |
| RU2793276C2 (en) * | 2018-07-27 | 2023-03-30 | Р. Шталь Шальтгерете Гмбх | Explosion-proof housing with split cover |
| US12053657B2 (en) | 2018-07-27 | 2024-08-06 | R. Stahl Schaltgeräte GmbH | Explosion-proof housing with split cover |
| WO2023097649A1 (en) * | 2021-12-03 | 2023-06-08 | 二工防爆科技股份有限公司 | Heat dissipation and explosion-proof electric appliance cabinet |
| CN114204440A (en) * | 2021-12-08 | 2022-03-18 | 二工防爆科技股份有限公司 | Explosion-proof power distribution cabinet |
| CN114361993A (en) * | 2022-01-12 | 2022-04-15 | 云南捷拓科技有限公司 | An outdoor cooling type monitoring waterproof box |
| CN117134537A (en) * | 2023-08-31 | 2023-11-28 | 江苏品星防爆电机有限公司 | Recoverable shell of explosion-proof motor |
| EP4572044A1 (en) * | 2023-12-13 | 2025-06-18 | ABB Schweiz AG | Cooling system for electrical enclosures |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3130046A1 (en) | 2017-02-15 |
| FR3019944A1 (en) | 2015-10-16 |
| FR3019944B1 (en) | 2016-04-01 |
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