EP3168476B1 - Housing with built-in control device and electric compressor comprising said housing - Google Patents

Housing with built-in control device and electric compressor comprising said housing Download PDF

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Publication number
EP3168476B1
EP3168476B1 EP16197150.2A EP16197150A EP3168476B1 EP 3168476 B1 EP3168476 B1 EP 3168476B1 EP 16197150 A EP16197150 A EP 16197150A EP 3168476 B1 EP3168476 B1 EP 3168476B1
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EP
European Patent Office
Prior art keywords
housing
orifice
positioning device
electronic card
compressor
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.)
Active
Application number
EP16197150.2A
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German (de)
French (fr)
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EP3168476A1 (en
Inventor
Augustin Bellet
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.)
Valeo Japan Co Ltd
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Valeo Japan Co Ltd
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Publication date
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Publication of EP3168476A1 publication Critical patent/EP3168476A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with or adaptation to specific driving engines or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/805—Fastening means, e.g. bolts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/808—Electronic circuits (e.g. inverters) installed inside the machine

Definitions

  • the present invention relates to the field of the automotive industry. More specifically, the invention relates to a housing adapted to contain a device for controlling the electric motor of the compressor, in particular an electric refrigeration compressor with integrated control device.
  • An electric compressor with an integrated control device intended for a motor vehicle, comprises a housing housing the electric motor of the compressor, a compression mechanism and an electric motor control device, called a control device, located inside. of the case.
  • This control device is adapted to convert the direct current, produced from a high-voltage power supply, into three-phase alternating current and to supply, via an electrical terminal, said three-phase alternating current to the electric motor of the compressor. .
  • This electrical terminal provides power to the motor while ensuring a seal of the refrigerant circuit.
  • This control device of the electric motor comprises a plurality of electronic components, in particular an electronic card of the printed circuit type.
  • the compressor may include the electrical terminal, as mentioned above, as well as low and high voltage connectors.
  • the various components mentioned above are assembled within the housing and their respective positions relative to each other must be guaranteed so as to be able to use a method of connection to the automated electronic card. Moreover, a perfect seal must also be guaranteed, which requires precise positioning of a closure cover of the housing.
  • the Applicant has highlighted the need to improve these techniques of the prior art in order to guarantee an efficient, functional and perfectly tight assembly of the various components of the control device within the compressor housing so as to be able to position and electrically connect automatically and reliably. This ensures an optimal operation of the control device and ultimately the electric compressor incorporating such a control device.
  • An object of the present invention is therefore to develop a housing adapted to receive the various components of a control device of the electric motor of the compressor, more particularly an integrable control device within an electric compressor with inverter integrated, in which the positioning of said different components of said control device, relative to each other, is optimized by the very structure of the housing, to ensure their respective position and their connection to each other.
  • This objective is perfectly achieved when the device alignment means of the device also align the lid, ensuring a seal and protection of the control device.
  • the present invention relates to an electric compressor housing for a vehicle, defining an interior space closed by a cover and in which is received at least one electronic card constituting a control device of an electric motor integrated in the electric compressor, the housing comprising at least one positioning device adapted to position the electronic card in the interior space, said positioning device traversing the electronic card so that a free end of the positioning device protrudes from a surface of the electronic card, said free end cooperating with said cover so as to allow the positioning of the cover in a predetermined position relative to the housing.
  • the position of the electronic card with respect to the other components placed in the interior space, and the position of the lid are thus provided in a particularly simple, reliable and allowing the use of methods of joining these automated components.
  • a single positioning device including an alignment pin, ensures a good position of the electronic card and cover.
  • the invention also provides an electric air conditioning compressor for a vehicle, comprising a housing according to any of the features set forth herein.
  • a first connector is received in a first port of the housing and a second connector is received in a second port of the housing, the electronic board being connected to the first connector and the second connector by at least one weld.
  • the compressor comprises an electric motor controlled by the electronic card and is received in a clearance of the housing opposite to the interior space, relative to the bottom.
  • the compressor comprises a spiral compression device driven by the electric motor.
  • the electronic card mentioned above is a major component of the control device of the electric motor housed in the compressor.
  • a power module is also part of this control device. The latter controls the speed of rotation of the electric motor of the compressor allowing a variable refrigerant flow, and this in order to regulate the temperature inside the air-conditioned cabin of the vehicle. In this way, the rotational speed of the electric compressor may vary in response to the load demanded from the vehicle's air conditioning system.
  • the figure 1 represents, schematically, an electric air conditioning compressor 100, integrated control device 140.
  • the device 100 comprises an electric motor 110 adapted to operate a compression device 120, the latter may be for example a spiral compression device.
  • the electric compressor 100 comprises a housing 130 from which the control device 140 of the electric motor is received.
  • this control device 140 forms an inverter, that is to say a means for converting a direct current into alternating current, as well as a means capable of controlling the speed of rotation of the electric motor of the compressor.
  • the electric motor 110 has a rotation shaft 131 which rotates about a longitudinal axis A.
  • the housing 130 according to the invention can be attached to a first longitudinal end of the electric motor 110, by being fixed on an additional housing which houses the electric motor 110.
  • the housing 130 defines an interior space 132 in which are arranged the components of the control device 140 of the electric motor 110, in particular an electronic card.
  • the interior space 132 is delimited by a bottom 133 and by a peripheral wall 134 of the housing 130, the wall extending substantially perpendicular to a plane in which the bottom 133 is predominantly inscribed.
  • This internal space 132 also houses an electrical terminal 20, the function of which is to safely transmit the three-phase alternating current of the control device 140 to the electric motor 110, in particular by electrically isolating this current from the bottom 133.
  • This electrical terminal 20 is advantageously an insulated glass terminal. It is also waterproof by preventing a coolant present around the electric motor 110 from entering the interior space 132.
  • the housing 130 comprises a clearance 135 delimited by a second peripheral wall 136 which extends in a direction opposite to the extension direction of the peripheral wall 134, called the first wall, which delimits the space
  • the housing 130 comprises, on one side of the bottom 133, the interior space, and on the other, a receiving zone of the electric motor 110.
  • the electrical terminal 20 comprises at least two conductive rods 20a, 20b which cooperate with an electronic card constituting the control device 140.
  • the electrical terminal 20 comprises three conducting rods 20a, 20b, 20c because of the three-phase nature of the current to be supplied to the electric motor 110. figure 1 that these conductive rods pass right through the bottom 133 of the housing 130, while the electrical terminal 20 is secured to the bottom 133 by mounting it either by the interior space 132 or by the clearance 135.
  • the position of the electronic card is determined by the electrical terminal 20, in particular by at least one of the conductive rods 20a, 20b, and / or 20c which passes through this electronic card.
  • the figure 2 represents an embodiment of the housing 1 adapted to contain the control device.
  • This housing 1 is particularly suitable for a control device used to control an electric compressor with integrated control device for a vehicle, preferably a motor vehicle.
  • the assembly composed of the housing 1 and the cover 50 (as shown on the figure 4 ) provides an interior space 132 available to receive, within it, the various electronic components of the control device.
  • Said assembly, composed of the housing 1 and the cover 50, must constitute a sealed receptacle for receiving the various electronic components of the control device.
  • the housing 1 is particularly adapted to allow optimal positioning of the various electronic components and the electrical terminal 20 during its assembly.
  • said housing 1 is provided with an alignment device, said first positioning device 11.
  • the housing 1 comprises a second positioning device 10.
  • the The invention also covers the embodiments in which the housing 1 is provided with a single positioning device 11.
  • the first positioning device 11 and the second positioning device 10 are relatively distant from each other.
  • the first positioning device 11 located in an upper half-compressor, while the second positioning device 10 is placed in the lower half-compressor, the compressor then being shared by a plane passing through the longitudinal axis A.
  • the electrical terminal 20 is located essentially between the two positioning devices 10, 11. More specifically, the electrical terminal 20 is placed on the bottom 133 so that a line passing through a center of each positioning devices 10, 11 intersect the electrical terminal 20.
  • the first positioning device 11 and the second positioning device 10 make it possible to precisely determine the positioning of the electrical terminal 20 inside the housing 1. This determined position of the electrical terminal 20 takes its importance because this position determines the position of the electronic card.
  • the electronic card 40 can then be approximated and positioned precisely, particularly vis-à-vis high and low voltage connectors pre-positioned in orifices 21 and 22 that comprises the housing 1.
  • the first positioning device 11 is located on the housing 1 substantially between a first orifice 21 arranged to receive a high voltage electrical connector and a second low voltage electrical connector, said signal.
  • a power module 30 is positioned with four stops 31, 32, 33, 34 installed around said power module 30.
  • the positioning of the electronic card 40 is as follows.
  • the electronic card 40 is positioned at using at least one of the three conductive rods 20a, 20b, 20c of the electrical terminal 20.
  • the first positioning device 11 is received in a hole 35 formed through the electronic card 40.
  • the correct positioning and definitive of the electronic card 40 within the interior space 132 of the housing 1 is made using this combination of means formed by the electrical terminal 20 and the first positioning device 11, adapted to pass through the electronic card 40.
  • the three conductive rods 20a, 20b, 20c of the electrical terminal 20 and the first positioning device 11 pass through the electronic card 40 and together dictate its positioning within the housing 1.
  • the electrical terminal 20 and the first positioning device 11 cooperate to ensure optimal positioning of the electronic card 40 with, inter alia, the high voltage and low voltage connectors, and / or with the power module 30.
  • the housing 1 When the housing 1 is provided with the first positioning device 11, it is advantageous that it is in the vicinity of the location of the key components of the control device which must be connected with the electronic card 40.
  • connection element is for example a welding stud having a circular hole complementary to a section of the conductive rod that it receives.
  • the first positioning device 11 is mounted on the housing 1 near the connector ports 21, 22 (as shown in FIG. figure 2 ), is adapted to pass right through the electronic card 40.
  • the first positioning device 11 has in particular a sufficient length.
  • a free end 13 of the positioning device 11 which emerges from the housing 1 is at least strictly greater than the thickness of the electronic card 40.
  • This first positioning device 11 then projects on the surface of the electronic card 40; the portion of the first positioning device 11 projecting from the surface of said electronic card 40 serves, in turn, reference for the positioning of the cover 50 on the housing 1, allowing to correctly position the cover 50 relative to the housing 1 To do this, the free end 13 of the positioning device is housed in a hole 137 formed in the thickness of the cover 50.
  • a first end 12 of the first positioning device 11 makes it possible to position the latter in a recess in the bottom 132 delimiting the internal space 132.
  • the first positioning device 11 passes through the material forming the printed circuit board electronic card 40 and protrudes, at a second end 13, to the surface of said electronic card 40.
  • a sealing element 60 made of a flexible material or a thin metal or a multilayer combination of metallic and synthetic materials, such as for example a metal seal, is positioned between the housing 1 and the cover 50, more precisely at the interface between a periphery of the interior space 132 of the housing 1 and a periphery of the cover 50.
  • the cover 50 is fixed on the housing 1 by any suitable means, such as, for example, screws 15.
  • the figure 5 represents a front view of the sealing element 60 of flexible material or of fine metal or a multilayer combination of metallic and synthetic materials.
  • this thin metal may consist of a material such as steel, a thickness of the order 0.3 mm, so as to give it some deformation.
  • the sealing element 60 of fine metal undergoes compression stresses, counteracting the deformation of this sealing element 60, which is flattened, thus improving the seal between the cover 50 and the housing 1.
  • Said sealing member 60 is in a form allowing substantially to match the contour of the housing 1 receiving the various components of the control device according to the present invention.
  • the sealing element 60 has seven orifices located around its periphery, each of them being adapted to receive a screw intended to screw the cover 50 onto the casing 1.
  • the sealing element 60 has a first extension 61, in the form of an ear, adapted to allow the passage of the first positioning device 11.
  • the sealing element 60 also has a second extension 62, adapted to allow the passage of the second positioning device 10.
  • the figure 5 also shows that the two extensions 61, 62, allowing the passage of the first positioning device 11 and the second positioning device 10, are relatively distant from each other. This configuration allows an optimum position of the sealing member 60 when mounted on the periphery of the housing 1.
  • first positioning device and second positioning device are circular section positioning pins, forcibly mounted in the housing 1.

Description

Domaine de l'inventionField of the invention

La présente invention concerne le domaine de l'industrie automobile. Plus précisément, l'invention a trait à un boîtier adapté pour contenir un dispositif de contrôle du moteur électrique du compresseur, en particulier d'un compresseur frigorifique électrique à dispositif de contrôle intégré.The present invention relates to the field of the automotive industry. More specifically, the invention relates to a housing adapted to contain a device for controlling the electric motor of the compressor, in particular an electric refrigeration compressor with integrated control device.

Etat de la techniqueState of the art

De nos jours, le domaine automobile met à disposition des utilisateurs des véhicules automobiles équipés d'un système de climatisation destiné à réguler la température à l'intérieur de l'habitacle desdits véhicules automobiles. Récemment, les constantes améliorations dans ce domaine ont donné naissance à des compresseurs électriques pourvus d'un dispositif de contrôle intégré. De tels compresseurs électriques sont fabriqués en intégrant des dispositifs de type dispositif de contrôle dans des boîtiers prévus à cet effet. Ces compresseurs électriques pourvus d'un dispositif de contrôle intégré sont désormais proposés au sein de véhicules - tels que des véhicules automobiles - climatisés.Nowadays, the automotive field provides users of motor vehicles equipped with an air conditioning system for regulating the temperature inside the passenger compartment of said motor vehicles. Recently, the constant improvements in this field have given rise to electric compressors equipped with an integrated control device. Such electric compressors are manufactured by integrating devices of type control device into housings provided for this purpose. These electric compressors equipped with an integrated control device are now available in vehicles - such as motor vehicles - air-conditioned.

Un compresseur électrique à dispositif de contrôle intégré, destiné à un véhicule automobile, comprend un boitier logeant le moteur électrique du compresseur, un mécanisme de compression ainsi qu'un dispositif de contrôle du moteur électrique, appelé dispositif de contrôle, situé à l'intérieur du boîtier. Ce dispositif de contrôle est adapté pour convertir le courant continu, produit à partir d'une alimentation électrique à haute tension, en courant alternatif triphasé et fournir, par l'intermédiaire d'une borne électrique, ledit courant alternatif triphasé au moteur électrique du compresseur. Cette borne électrique permet d'alimenter électriquement le moteur tout en assurant une étanchéité du circuit de réfrigérant.An electric compressor with an integrated control device, intended for a motor vehicle, comprises a housing housing the electric motor of the compressor, a compression mechanism and an electric motor control device, called a control device, located inside. of the case. This control device is adapted to convert the direct current, produced from a high-voltage power supply, into three-phase alternating current and to supply, via an electrical terminal, said three-phase alternating current to the electric motor of the compressor. . This electrical terminal provides power to the motor while ensuring a seal of the refrigerant circuit.

Ce dispositif de contrôle du moteur électrique comprend plusieurs composants électroniques, notamment une carte électronique de type circuit imprimé. Par ailleurs, le compresseur peut comprendre la borne électrique, tel que mentionné supra, ainsi que des connecteurs basse et haute tension. Les différents composants susmentionnés sont assemblés au sein du boîtier et leurs positions respectives les uns par rapport aux autres doivent être garanties de sorte à pouvoir utiliser un mode de solidarisation sur la carte électronique automatisé. Par ailleurs, une parfaite étanchéité doit également être garantie, ce qui nécessite de positionner de manière précise un couvercle de fermeture du boîtier.This control device of the electric motor comprises a plurality of electronic components, in particular an electronic card of the printed circuit type. By elsewhere, the compressor may include the electrical terminal, as mentioned above, as well as low and high voltage connectors. The various components mentioned above are assembled within the housing and their respective positions relative to each other must be guaranteed so as to be able to use a method of connection to the automated electronic card. Moreover, a perfect seal must also be guaranteed, which requires precise positioning of a closure cover of the housing.

Bien que ces différents composants présentent généralement des tolérances dimensionnelles, en vue de faciliter leur assemblage, cette étape de pré-assemblage demeure critique. Cette criticité génère des difficultés d'alignement qui, in fine, provoque des défauts aboutissant à mettre au rébus des boîtiers équipés de son dispositif de contrôle, voire du compresseur dans son entièreté, notamment en raison de défaut d'étanchéité entre le boîtier et le couvercle.Although these various components generally have dimensional tolerances, in order to facilitate their assembly, this pre-assembly step remains critical. This criticality generates alignment difficulties which, ultimately, causes defects leading to rebbus enclosures equipped with its control device, or even the compressor in its entirety, in particular due to lack of sealing between the housing and the lid.

La demanderesse a mis en évidence le besoin d'améliorer ces techniques de l'art antérieur afin de garantir un assemblage efficace, fonctionnel et parfaitement étanche des différents composants du dispositif de contrôle au sein du boîtier de compresseur de sorte à pouvoir les positionner et les relier électriquement de manière automatique et fiable. On garantit ainsi un fonctionnement optimal du dispositif de contrôle et, in fine, du compresseur électrique intégrant un tel dispositif de contrôle.The Applicant has highlighted the need to improve these techniques of the prior art in order to guarantee an efficient, functional and perfectly tight assembly of the various components of the control device within the compressor housing so as to be able to position and electrically connect automatically and reliably. This ensures an optimal operation of the control device and ultimately the electric compressor incorporating such a control device.

Le document EP 1 450 004 divulgue les caractéristiques du préambule de la revendication 1.The document EP 1 450 004 discloses the features of the preamble of claim 1.

Exposé de l'inventionPresentation of the invention

Un objectif de la présente invention vise donc à mettre au point un boîtier adapté pour recevoir les différents composants d'un dispositif de contrôle du moteur électrique du compresseur, plus particulièrement d'un dispositif de contrôle intégrable au sein d'un compresseur électrique à onduleur intégré, dans lequel le positionnement desdits différents composants dudit dispositif de contrôle, les uns par rapport aux autres, est optimisé par la structure même du boîtier, afin de garantir leur position respective et leur solidarisation les uns vis-à-vis des autres. Cet objectif est parfaitement atteint quand les moyens d'alignement de composants du dispositif de contrôle alignent également le couvercle, garantissant une étanchéité et une protection du dispositif de contrôle.An object of the present invention is therefore to develop a housing adapted to receive the various components of a control device of the electric motor of the compressor, more particularly an integrable control device within an electric compressor with inverter integrated, in which the positioning of said different components of said control device, relative to each other, is optimized by the very structure of the housing, to ensure their respective position and their connection to each other. This objective is perfectly achieved when the device alignment means of the device also align the lid, ensuring a seal and protection of the control device.

La présente invention a pour objet un boîtier de compresseur électrique pour véhicule, délimitant un espace intérieur fermé par un couvercle et dans lequel est reçu au moins une carte électronique constitutive d'un dispositif de contrôle d'un moteur électrique intégré au compresseur électrique, le boîtier comprenant au moins un dispositif de positionnement adaptée pour positionner la carte électronique dans l'espace intérieur, ledit dispositif de positionnement traversant la carte électronique de sorte qu'une extrémité libre du dispositif de positionnement fait saillie à une surface de la carte électronique, ladite extrémité libre coopérant avec ledit couvercle de manière à permettre le positionnement du couvercle dans une position prédéterminée par rapport au boîtier.The present invention relates to an electric compressor housing for a vehicle, defining an interior space closed by a cover and in which is received at least one electronic card constituting a control device of an electric motor integrated in the electric compressor, the housing comprising at least one positioning device adapted to position the electronic card in the interior space, said positioning device traversing the electronic card so that a free end of the positioning device protrudes from a surface of the electronic card, said free end cooperating with said cover so as to allow the positioning of the cover in a predetermined position relative to the housing.

La position de la carte électronique par rapport aux autres composants placés dans l'espace intérieur, et la position du couvercle sont ainsi assurées de manière particulièrement simple, fiable et autorisant le recours à des modes de solidarisation de ces composants automatisés. Un seul et unique dispositif de positionnement, notamment une goupille d'alignement, assure une bonne position de la carte électronique et du couvercle.The position of the electronic card with respect to the other components placed in the interior space, and the position of the lid are thus provided in a particularly simple, reliable and allowing the use of methods of joining these automated components. A single positioning device, including an alignment pin, ensures a good position of the electronic card and cover.

Le boîtier selon l'invention peut comprendre avantageusement les caractéristiques suivantes prises seules ou en combinaison :

  • la position de la carte électronique aligne celle-ci par rapport à au moins un orifice ménagé dans le boîtier et configuré pour recevoir un connecteur électrique,
  • ledit au moins un dispositif de positionnement est positionnée au voisinage de l'orifice, afin de fixer ladite position prédéterminée par rapport à la position dudit au moins un orifice pour un connecteur électrique au sein dudit boîtier,
  • le boîtier comprend au moins un premier orifice agencé pour recevoir un premier connecteur électrique et au moins un deuxième orifice agencé pour recevoir un deuxième connecteur électrique, dans lequel le dispositif de positionnement est positionné entre le premier orifice et le deuxième orifice.
  • selon une première variante, le dispositif de positionnement est localisé sur le boîtier dans une bande délimité d'une côté par le premier orifice et de l'autre par le deuxième orifice,
  • de manière plus précise, le dispositif de positionnement est monté sur le boîtier dans ladite bande, et dans un bandeau délimité par une première droite passant par le sommet des deux orifices et par une seconde droite passant par le pied des deux orifices. En ce sens, le dispositif de positionnement est entre les deux orifices, au sens strict,
  • le boîtier délimite un dégagement séparé de l'espace intérieur par un fond et configuré pour recevoir un moteur électrique, une borne électrique étant apte à relier électriquement la carte électronique au moteur électrique,
  • un élément d'étanchéité est positionné à une interface entre un pourtour de l'espace intérieur et un pourtour du couvercle, de sorte à garantir une fermeture étanche de l'espace intérieur par ledit couvercle,
  • l'élément d'étanchéité est en matière souple ou en métal fin en une combinaison multicouches de matières métallique et synthétique,
  • le dispositif de positionnement coopère avec l'élément d'étanchéité, de manière à permettre le positionnement dudit élément d'étanchéité dans une position prédéterminée par rapport au boîtier.
The housing according to the invention may advantageously comprise the following characteristics taken alone or in combination:
  • the position of the electronic card aligns the latter with respect to at least one orifice formed in the housing and configured to receive an electrical connector,
  • said at least one positioning device is positioned in the vicinity of the orifice, in order to fix said predetermined position with respect to the position of said at least one orifice for an electrical connector within said housing,
  • the housing comprises at least a first port arranged to receive a first electrical connector and at least a second port arranged to receive a second electrical connector, wherein the positioning device is positioned between the first port and the second port.
  • according to a first variant, the positioning device is located on the housing in a band delimited on one side by the first orifice and on the other by the second orifice,
  • more precisely, the positioning device is mounted on the housing in said strip, and in a strip delimited by a first straight line passing through the apex of the two orifices and by a second straight line passing through the foot of the two orifices. In this sense, the positioning device is between the two orifices, in the strict sense,
  • the housing delimits a clearance separated from the interior space by a bottom and configured to receive an electric motor, an electrical terminal being able to electrically connect the electronic card to the electric motor,
  • a sealing element is positioned at an interface between a periphery of the interior space and a periphery of the lid, so as to guarantee a sealed closure of the interior space by said lid,
  • the sealing element is of flexible material or of fine metal in a multilayer combination of metallic and synthetic materials,
  • the positioning device cooperates with the sealing element, so as to allow the positioning of said sealing element in a predetermined position relative to the housing.

L'invention vise aussi un compresseur électrique de climatisation pour véhicule, comprenant un boîtier selon l'une quelconque des caractéristiques exposées dans le présent document.The invention also provides an electric air conditioning compressor for a vehicle, comprising a housing according to any of the features set forth herein.

Selon aspect de ce compresseur, un premier connecteur est reçu dans un premier orifice du boîtier et un deuxième connecteur est reçu dans un deuxième orifice du boîtier, la carte électronique étant reliée au premier connecteur et au deuxième connecteur par au moins une soudure.According to appearance of this compressor, a first connector is received in a first port of the housing and a second connector is received in a second port of the housing, the electronic board being connected to the first connector and the second connector by at least one weld.

Avantageusement, le compresseur comprend un moteur électrique commandé par la carte électronique et est reçu dans un dégagement du boîtier opposé à l'espace intérieur, par rapport au fond.Advantageously, the compressor comprises an electric motor controlled by the electronic card and is received in a clearance of the housing opposite to the interior space, relative to the bottom.

Selon une variante de réalisation, le compresseur comprend un dispositif de compression à spirales entrainé par le moteur électrique.According to an alternative embodiment, the compressor comprises a spiral compression device driven by the electric motor.

La carte électronique évoquée plus haut est un composant majeur du dispositif de contrôle du moteur électrique logé dans le compresseur. Un module de puissance fait également partie de ce dispositif de contrôle. Ce dernier contrôle la vitesse de rotation du moteur électrique du compresseur permettant un débit de réfrigérant variable, et ce afin de réguler la température à l'intérieur de l'habitacle climatisé du véhicule. De cette façon, la vitesse de rotation du compresseur électrique peut varier en réponse à la charge demandée au système de climatisation du véhicule.The electronic card mentioned above is a major component of the control device of the electric motor housed in the compressor. A power module is also part of this control device. The latter controls the speed of rotation of the electric motor of the compressor allowing a variable refrigerant flow, and this in order to regulate the temperature inside the air-conditioned cabin of the vehicle. In this way, the rotational speed of the electric compressor may vary in response to the load demanded from the vehicle's air conditioning system.

Brève description des dessinsBrief description of the drawings

Les buts, objets et caractéristiques de la présente invention, ainsi que ses avantages, apparaitront plus clairement à la lecture de la présente description des modes de réalisation préférés de la présente invention, faite en référence aux dessins, dans lesquels :

  • la figure 1 représente, de façon schématique, un compresseur électrique à dispositif de contrôle intégré,
  • la figure 2 représente une vue de face d'un boîtier adapté pour recevoir les différents composants d'un dispositif de contrôle, selon la présente invention,
  • la figure 3 est une vue de face du boîtier selon la figure 2, après positionnement d'une carte électronique en son sein,
  • la figure 4 représente une vue partielle en coupe du boitier muni d'un couvercle positionné sur le boîtier adapté pour recevoir le dispositif de contrôle,
  • la figure 5 représente un élément d'étanchéité adapté pour être positionné entre le boîtier et son couvercle.
The objects, objects and features of the present invention, as well as its advantages, will become more clearly apparent upon reading the present description of the preferred embodiments of the present invention, with reference to the drawings, in which:
  • the figure 1 represents, schematically, an electric compressor with integrated control device,
  • the figure 2 represents a front view of a housing adapted to receive the different components of a control device, according to the present invention,
  • the figure 3 is a front view of the case according to the figure 2 after positioning an electronic card in it,
  • the figure 4 represents a partial sectional view of the housing provided with a lid positioned on the housing adapted to receive the control device,
  • the figure 5 represents a sealing element adapted to be positioned between the housing and its cover.

D'autres objectifs, apparaîtront, le cas échéant, à la lecture de la présente description.Other objectives will appear, if necessary, on reading the present description.

Description détailléedetailed description

La description ci-après a pour but d'exposer l'invention de manière suffisamment claire et complète, notamment en se référant aux figures 1 à 5, mais ne doit en aucun cas être considérée comme limitant la portée de l'invention aux modes de réalisation décrits ci-après.The following description is intended to explain the invention in a sufficiently clear and complete manner, in particular by referring to Figures 1 to 5 but should in no way be construed as limiting the scope of the invention to the embodiments described hereinafter.

La figure 1 représente, de façon schématique, un compresseur électrique 100 de climatisation, à dispositif de contrôle 140 intégré. Le dispositif 100 comprend un moteur électrique 110 adapté pour faire fonctionner un dispositif de compression 120, ce dernier pouvant être par exemple un dispositif de compression à spirales. Le compresseur électrique 100 comprend un boîtier 130 de lequel est reçu le dispositif de contrôle 140 du moteur électrique. Comme évoqué plus haut, ce dispositif de contrôle 140 forme un onduleur, c'est-à-dire un moyen de transformer un courant continu en courant alternatif, ainsi qu'un moyen capable de contrôler la vitesse de rotation du moteur électrique du compresseur.The figure 1 represents, schematically, an electric air conditioning compressor 100, integrated control device 140. The device 100 comprises an electric motor 110 adapted to operate a compression device 120, the latter may be for example a spiral compression device. The electric compressor 100 comprises a housing 130 from which the control device 140 of the electric motor is received. As mentioned above, this control device 140 forms an inverter, that is to say a means for converting a direct current into alternating current, as well as a means capable of controlling the speed of rotation of the electric motor of the compressor.

Le moteur électrique 110 présente un arbre de rotation 131 qui tourne autour d'un axe longitudinal A. Le boîtier 130 selon l'invention peut être rapporté à une première extrémité longitudinale du moteur électrique 110, en venant se fixer sur un boîtier additionnel qui loge le moteur électrique 110. Le boîtier 130 délimite un espace intérieur 132 dans lequel sont disposés les composants du dispositif de contrôle 140 du moteur électrique 110, en particulier une carte électronique. L'espace intérieur 132 est délimité par un fond 133 et par une paroi périphérique 134 du boîtier 130, la paroi s'étendant sensiblement perpendiculairement à un plan dans lequel s'inscrit majoritairement le fond 133.The electric motor 110 has a rotation shaft 131 which rotates about a longitudinal axis A. The housing 130 according to the invention can be attached to a first longitudinal end of the electric motor 110, by being fixed on an additional housing which houses the electric motor 110. The housing 130 defines an interior space 132 in which are arranged the components of the control device 140 of the electric motor 110, in particular an electronic card. The interior space 132 is delimited by a bottom 133 and by a peripheral wall 134 of the housing 130, the wall extending substantially perpendicular to a plane in which the bottom 133 is predominantly inscribed.

Cette espace intérieur 132 loge également une borne électrique 20, dont la fonction est de transmettre en toute sécurité le courant alternatif triphasé du dispositif de contrôle 140 vers le moteur électrique 110, notamment en isolant électriquement ce courant du fond 133. Cette borne électrique 20 est avantageusement une borne de verre isolée. Elle est également étanche en empêchant un fluide réfrigérant présent autour du moteur électrique 110 de pénétrer dans l'espace intérieur 132.This internal space 132 also houses an electrical terminal 20, the function of which is to safely transmit the three-phase alternating current of the control device 140 to the electric motor 110, in particular by electrically isolating this current from the bottom 133. This electrical terminal 20 is advantageously an insulated glass terminal. It is also waterproof by preventing a coolant present around the electric motor 110 from entering the interior space 132.

Selon une autre alternative, le boîtier 130 comprend un dégagement 135 délimité par une seconde paroi périphérique 136 qui s'étend selon un sens opposé au sens d'extension de la paroi périphérique 134, dite première paroi, qui délimite l'espace intérieur 132. En d'autres termes, le boîtier 130 comprend, d'un côté du fond 133, l'espace intérieur, et de l'autre, une zone de réception du moteur électrique 110.According to another alternative, the housing 130 comprises a clearance 135 delimited by a second peripheral wall 136 which extends in a direction opposite to the extension direction of the peripheral wall 134, called the first wall, which delimits the space In other words, the housing 130 comprises, on one side of the bottom 133, the interior space, and on the other, a receiving zone of the electric motor 110.

La borne électrique 20 comprend au moins deux tiges conductrices 20a, 20b qui coopèrent avec une carte électronique constitutive du dispositif de contrôle 140. Selon l'exemple de réalisation de la figure 1, la borne électrique 20 comprend trois tiges conductrices 20a, 20b, 20cen raison du caractère triphasé du courant à fournir au moteur électrique 110. On constate sur la figure 1 que ces tiges conductrices traversent de part en part le fond 133 du boîtier 130, alors que la borne électrique 20 est solidarisée sur le fond 133 en la montant soit par l'espace intérieur 132 soit par le dégagement 135.The electrical terminal 20 comprises at least two conductive rods 20a, 20b which cooperate with an electronic card constituting the control device 140. According to the embodiment of FIG. figure 1 the electrical terminal 20 comprises three conducting rods 20a, 20b, 20c because of the three-phase nature of the current to be supplied to the electric motor 110. figure 1 that these conductive rods pass right through the bottom 133 of the housing 130, while the electrical terminal 20 is secured to the bottom 133 by mounting it either by the interior space 132 or by the clearance 135.

Selon la présente invention, la position de la carte électronique est déterminée par la borne électrique 20, notamment par au moins une des tiges conductrices 20a, 20b, et/ou 20c qui traverse cette carte électronique.According to the present invention, the position of the electronic card is determined by the electrical terminal 20, in particular by at least one of the conductive rods 20a, 20b, and / or 20c which passes through this electronic card.

La figure 2 représente un mode de réalisation du boîtier 1 adapté pour contenir le dispositif de contrôle. Ce boîtier 1 est particulièrement adapté à un dispositif de contrôle utilisé pour piloter un compresseur électrique à dispositif de contrôle intégré destiné à un véhicule, de préférence à un véhicule automobile.The figure 2 represents an embodiment of the housing 1 adapted to contain the control device. This housing 1 is particularly suitable for a control device used to control an electric compressor with integrated control device for a vehicle, preferably a motor vehicle.

L'ensemble composé du boîtier 1 et du couvercle 50 (comme montré sur la figure 4) offre un espace intérieur 132 disponible pour recevoir, en son sein, les différents composants électroniques du dispositif de contrôle. Ledit ensemble, composé du boîtier 1 et du couvercle 50, doit constituer un réceptacle étanche permettant de recevoir les différents composants électroniques du dispositif de contrôle.The assembly composed of the housing 1 and the cover 50 (as shown on the figure 4 ) provides an interior space 132 available to receive, within it, the various electronic components of the control device. Said assembly, composed of the housing 1 and the cover 50, must constitute a sealed receptacle for receiving the various electronic components of the control device.

Le boîtier 1 selon la figure 2 est particulièrement adapté pour permettre un positionnement optimal des différents composants électroniques et de la borne électrique 20, lors de son assemblage. Afin d'assurer ce positionnement au sein du boîtier 1, ledit boîtier 1 est pourvu d'un dispositif d'alignement, dit premier dispositif de positionnement 11. Optionnellement, le boîtier 1 comprend un deuxième dispositif de positionnement 10. Bien évidemment, l'invention couvre également les modes de réalisation dans lesquels le boîtier 1 est pourvu d'un unique dispositif de positionnement 11.The housing 1 according to the figure 2 is particularly adapted to allow optimal positioning of the various electronic components and the electrical terminal 20 during its assembly. To ensure this positioning within the housing 1, said housing 1 is provided with an alignment device, said first positioning device 11. Optionally, the housing 1 comprises a second positioning device 10. Of course, the The invention also covers the embodiments in which the housing 1 is provided with a single positioning device 11.

Comme montré sur la figure 2, le premier dispositif de positionnement 11 et le deuxième dispositif de positionnement 10 sont relativement éloignées l'une de l'autre. A titre d'exemple de position, le premier dispositif de positionnement 11 localisé dans un demi-compresseur supérieur, tandis que le deuxième dispositif de positionnement 10 est placé dans demi-compresseur inférieur, le compresseur étant alors partagé par un plan passant par l'axe longitudinal A.As shown on the figure 2 the first positioning device 11 and the second positioning device 10 are relatively distant from each other. By way of example of position, the first positioning device 11 located in an upper half-compressor, while the second positioning device 10 is placed in the lower half-compressor, the compressor then being shared by a plane passing through the longitudinal axis A.

Selon cet exemple, la borne électrique 20 se trouve située essentiellement entre les deux dispositifs de positionnement 10, 11. De manière plus spécifique, la borne électrique 20 est placé sur le fond 133 de telle sorte qu'une droite passant par un centre de chacun des dispositifs de positionnement 10, 11 coupe la borne électrique 20.According to this example, the electrical terminal 20 is located essentially between the two positioning devices 10, 11. More specifically, the electrical terminal 20 is placed on the bottom 133 so that a line passing through a center of each positioning devices 10, 11 intersect the electrical terminal 20.

Selon une étape préalable au montage de la carte électronique, le premier dispositif de positionnement 11 et le deuxième dispositif de positionnement 10 permettent de déterminer précisément le positionnement de la borne électrique 20 à l'intérieur du boîtier 1. Cette position déterminée de la borne électrique 20 prend son importance car cette position détermine la position de la carte électronique.According to a step prior to the mounting of the electronic card, the first positioning device 11 and the second positioning device 10 make it possible to precisely determine the positioning of the electrical terminal 20 inside the housing 1. This determined position of the electrical terminal 20 takes its importance because this position determines the position of the electronic card.

Ainsi, lorsque la borne électrique 20 est correctement positionnée à l'intérieur du boîtier 1 et solidarisée au fond 133, grâce à la configuration formée par les deux dispositifs de positionnement 10, 11, la carte électronique 40 peut ensuite être approchée et positionnée précisément, notamment vis-à-vis de connecteurs hautes et basses tension pré-positionnés dans des orifices 21 et 22 que comporte le boîtier 1. On remarque à cet égard que le premier dispositif de positionnement 11 est localisé sur le boîtier 1 sensiblement entre un premier orifice 21 agencé pour recevoir un connecteur électrique haute tension et un deuxième connecteur électrique basse tension, dit de signal.Thus, when the electrical terminal 20 is correctly positioned inside the housing 1 and secured to the bottom 133, thanks to the configuration formed by the two positioning devices 10, 11, the electronic card 40 can then be approximated and positioned precisely, particularly vis-à-vis high and low voltage connectors pre-positioned in orifices 21 and 22 that comprises the housing 1. Note in this regard that the first positioning device 11 is located on the housing 1 substantially between a first orifice 21 arranged to receive a high voltage electrical connector and a second low voltage electrical connector, said signal.

Comme montré sur la figure 2, un module de puissance 30 est positionné à l'aide de quatre butées 31, 32, 33, 34, installés autour dudit module de puissance 30.As shown on the figure 2 a power module 30 is positioned with four stops 31, 32, 33, 34 installed around said power module 30.

Comme représenté sur la figure 3 et selon l'invention, le positionnement de la carte électronique 40 s'effectue comme suit. La carte électronique 40 est positionnée à l'aide d'au moins une des trois tiges conductrices 20a, 20b, 20c de la borne électrique 20. Simultanément, le premier dispositif de positionnement 11 est reçu dans un trou 35 ménagé au travers de la carte électronique 40. Le positionnement correct et définitif de la carte électronique 40 au sein de l'espace intérieur 132 du boîtier 1 est réalisé à l'aide de cette combinaison de moyens formés par la borne électrique 20 et le premier dispositif de positionnement 11, adapté pour traverser la carte électronique 40.As shown on the figure 3 and according to the invention, the positioning of the electronic card 40 is as follows. The electronic card 40 is positioned at using at least one of the three conductive rods 20a, 20b, 20c of the electrical terminal 20. Simultaneously, the first positioning device 11 is received in a hole 35 formed through the electronic card 40. The correct positioning and definitive of the electronic card 40 within the interior space 132 of the housing 1 is made using this combination of means formed by the electrical terminal 20 and the first positioning device 11, adapted to pass through the electronic card 40.

En d'autres termes, les trois tiges conductrices 20a, 20b, 20c de la borne électrique 20 et le premier dispositif de positionnement 11 traversent la carte électronique 40 et dictent ensemble son positionnement au sein du boîtier 1. La borne électrique 20 et le premier dispositif de positionnement 11 coopèrent afin de garantir un positionnement optimal de la carte électronique 40 avec, entre autres, les connecteurs haute tension et basse tension, et/ou avec le module de puissance 30.In other words, the three conductive rods 20a, 20b, 20c of the electrical terminal 20 and the first positioning device 11 pass through the electronic card 40 and together dictate its positioning within the housing 1. The electrical terminal 20 and the first positioning device 11 cooperate to ensure optimal positioning of the electronic card 40 with, inter alia, the high voltage and low voltage connectors, and / or with the power module 30.

Lorsque le boîtier 1 est pourvu du premier dispositif de positionnement 11, il s'avère avantageux que celui-ci soit au voisinage de l'emplacement des composants clef du dispositif de contrôle qui doivent être connectés avec la carte électronique 40.When the housing 1 is provided with the first positioning device 11, it is advantageous that it is in the vicinity of the location of the key components of the control device which must be connected with the electronic card 40.

Ainsi, comme illustré en figure 1 :

  • le premier dispositif de positionnement 11 est situé au voisinage, ou à proximité, de l'emplacement du premier orifice 21 pour un premier connecteur électrique et du deuxième orifice 22 pour un deuxième connecteur électrique 22. Avantageusement, ce premier dispositif de positionnement 11 est positionnée strictement entre lesdits premier et deuxième orifices 21, 22 pour assurer un positionnement précis de la carte électronique 40 dans la région des connecteurs soudés à la carte électronique après fixation dans le boîtier 1.
So as illustrated in figure 1 :
  • the first positioning device 11 is situated in the vicinity of or near the location of the first orifice 21 for a first electrical connector and the second orifice 22 for a second electrical connector 22. Advantageously, this first positioning device 11 is positioned strictly between said first and second orifices 21, 22 to ensure a precise positioning of the electronic card 40 in the region of the connectors welded to the electronic card after fixing in the housing 1.

En effet, cette configuration permet :

  • de positionner correctement et aisément les composants clef du dispositif de contrôle au sein du boîtier 1, et/ou
  • de positionner de manière fiable la carte électronique 40 dans une position prédéterminée, fixée par la position de la borne électrique 20 et par la position du premier dispositif de positionnement 11.
Indeed, this configuration allows:
  • to correctly and easily position the key components of the control device within the housing 1, and / or
  • to reliably position the electronic card 40 in a predetermined position, fixed by the position of the electrical terminal 20 and the position of the first positioning device 11.

Une fois que le bon positionnement de la carte électronique 40 est assuré, les trois tiges conductrices 20a, 20b, 20c sont reliées à la carte électronique 40 par l'intermédiaire d'un élément de connexion soudé ou rendu solidaire sur la carte électronique 40. L'élément de connexion est par exemple un plot de soudage comportant un trou circulaire complémentaire d'une section de la tige conductrice qu'il reçoit. Par ce positionnement précis de la carte électronique, on garantit que des contacts électriques des connecteurs haute tension et basse tension, et/ou du module de puissance 30 traversent la carte électronique 40, de manière à les souder à celle-ci.Once the correct positioning of the electronic card 40 is ensured, the three conductive rods 20a, 20b, 20c are connected to the electronic card 40 via a connection element welded or secured to the electronic card 40. The connection element is for example a welding stud having a circular hole complementary to a section of the conductive rod that it receives. By this precise positioning of the electronic card, it is ensured that electrical contacts of the high voltage and low voltage connectors, and / or the power module 30 pass through the electronic card 40, so as to weld them to it.

Selon la présente invention, et comme représenté sur la figure 4, le premier dispositif de positionnement 11 est monté sur le boîtier 1 à proximité des orifices de connecteurs 21, 22 (comme montré sur la figure 2), est adapté pour traverser de part en part la carte électronique 40. Pour ce faire, le premier dispositif de positionnement 11 présente notamment une longueur suffisante. Une extrémité libre 13 du dispositif de positionnement 11 qui émerge du boîtier 1 est au moins strictement supérieure à l'épaisseur de la carte électronique 40. Ce premier dispositif de positionnement 11 fait alors sailli à la surface de la carte électronique 40 ; la partie du premier dispositif de positionnement 11 faisant saillie à la surface de ladite carte électronique 40 sert, à son tour, de référence pour le positionnement du couvercle 50 sur le boîtier 1, en permettant de positionner correctement le couvercle 50 par rapport au boîtier 1. Pour ce faire, l'extrémité libre 13 du dispositif de positionnement est logée dans un trou 137 ménagé dans l'épaisseur du couvercle 50.According to the present invention, and as shown in figure 4 the first positioning device 11 is mounted on the housing 1 near the connector ports 21, 22 (as shown in FIG. figure 2 ), is adapted to pass right through the electronic card 40. To do this, the first positioning device 11 has in particular a sufficient length. A free end 13 of the positioning device 11 which emerges from the housing 1 is at least strictly greater than the thickness of the electronic card 40. This first positioning device 11 then projects on the surface of the electronic card 40; the portion of the first positioning device 11 projecting from the surface of said electronic card 40 serves, in turn, reference for the positioning of the cover 50 on the housing 1, allowing to correctly position the cover 50 relative to the housing 1 To do this, the free end 13 of the positioning device is housed in a hole 137 formed in the thickness of the cover 50.

Comme montré également en figure 4, une première extrémité 12 du premier dispositif de positionnement 11 permet de positionner celle-ci dans un renfoncement pratiqué dans le fond 132 délimitant l'espace intérieur 132. Le premier dispositif de positionnement 11 traverse le matériau formant la carte électronique 40 de type circuit imprimé et fait saillie, au niveau d'une deuxième extrémité 13, à la surface de ladite carte électronique 40.As shown also in figure 4 a first end 12 of the first positioning device 11 makes it possible to position the latter in a recess in the bottom 132 delimiting the internal space 132. The first positioning device 11 passes through the material forming the printed circuit board electronic card 40 and protrudes, at a second end 13, to the surface of said electronic card 40.

Un élément d'étanchéité 60, réalisé dans une matière souple ou dans un métal fin ou encore en une combinaison multicouches de matières métallique et synthétique, comme par exemple un joint d'étanchéité métallique, est positionné entre le boîtier 1 et le couvercle 50, plus précisément à l'interface entre un pourtour de l'espace intérieur 132 du boîtier 1 et un pourtour du couvercle 50. Le couvercle 50 est fixé sur le boîtier 1 grâce à tous moyens adaptés, tels que, par exemple, des vis 15.A sealing element 60, made of a flexible material or a thin metal or a multilayer combination of metallic and synthetic materials, such as for example a metal seal, is positioned between the housing 1 and the cover 50, more precisely at the interface between a periphery of the interior space 132 of the housing 1 and a periphery of the cover 50. The cover 50 is fixed on the housing 1 by any suitable means, such as, for example, screws 15.

La figure 5 représente une vue de face de l'élément d'étanchéité 60 en matière souple ou en métal fin ou en une combinaison multicouches de matières métallique et synthétique. Lorsque l'élément d'étanchéité 60 est composé de métal fin ou est une combinaison multicouches de métal fin et de matière souple synthétique, ce métal fin peut consister en un matériau tel que de l'acier, d'une épaisseur de l'ordre de 0,3 mm, de sorte à lui conférer une certaine déformation. Lors de la fixation du couvercle 50 sur le boîtier 1, l'élément d'étanchéité 60 en métal fin subit des contraintes de compression, contrariant la déformation de cet élément d'étanchéité 60, lequel est aplani, améliorant ainsi l'étanchéité entre le couvercle 50 et le boîtier 1.The figure 5 represents a front view of the sealing element 60 of flexible material or of fine metal or a multilayer combination of metallic and synthetic materials. When the sealing element 60 is composed of thin metal or is a multilayer combination of thin metal and synthetic flexible material, this thin metal may consist of a material such as steel, a thickness of the order 0.3 mm, so as to give it some deformation. When fixing the cover 50 on the housing 1, the sealing element 60 of fine metal undergoes compression stresses, counteracting the deformation of this sealing element 60, which is flattened, thus improving the seal between the cover 50 and the housing 1.

Ledit élément d'étanchéité 60 se présente sous une forme permettant d'épouser essentiellement le contour du boîtier 1 recevant les différents composants de du dispositif de contrôle selon la présente invention. Tel que représenté sur la figure 5, l'élément d'étanchéité 60 comporte sept orifices situés sur son pourtour, chacun d'entre eux étant adapté pour recevoir une vis destinée à visser le couvercle 50 sur le boîtier 1. Par ailleurs, l'élément d'étanchéité 60 présente une première extension 61, en forme d'oreille, adaptée pour permettre le passage du premier dispositif de positionnement 11. L'élément d'étanchéité 60 présente également une deuxième extension 62, adapté pour permettre le passage du deuxième dispositif de positionnement 10.Said sealing member 60 is in a form allowing substantially to match the contour of the housing 1 receiving the various components of the control device according to the present invention. As shown on the figure 5 , the sealing element 60 has seven orifices located around its periphery, each of them being adapted to receive a screw intended to screw the cover 50 onto the casing 1. Furthermore, the sealing element 60 has a first extension 61, in the form of an ear, adapted to allow the passage of the first positioning device 11. The sealing element 60 also has a second extension 62, adapted to allow the passage of the second positioning device 10.

La figure 5 montre également que les deux extensions 61, 62, permettant le passage du premier dispositif de positionnement 11 et du deuxième dispositif de positionnement 10, sont relativement éloignées l'une de l'autre. Cette configuration permet une position optimale de l'élément d'étanchéité 60 lorsqu'il est monté sur le pourtour du boîtier 1.The figure 5 also shows that the two extensions 61, 62, allowing the passage of the first positioning device 11 and the second positioning device 10, are relatively distant from each other. This configuration allows an optimum position of the sealing member 60 when mounted on the periphery of the housing 1.

La description ci-dessus fait état de premier dispositif de positionnement et de deuxième dispositif de positionnement. Selon un exemple de réalisation, ces dispositifs de positionnement sont des goupilles de positionnement de section circulaire, montées à force dans le boîtier 1.The above description refers to first positioning device and second positioning device. According to an exemplary embodiment, these positioning devices are circular section positioning pins, forcibly mounted in the housing 1.

Claims (11)

  1. Housing (1) for an electric vehicle compressor, delimiting an interior space (132) closed by a cover (50) and in which at least one electronic card (40) constituting a control device (140) of a electric motor (110) integrated in the electric compressor, the housing (1) comprising at least one positioning device (11) adapted to position the electronic card (40) in the interior space (132), said positioning device (11) traversing the electronic board (40) so that a free end (13) of the positioning device (11) projects from a surface of the electronic board (40), said free end (13) cooperating with said cover (50) in order to allow the positioning of the cover (50) in a predetermined position relative to the housing (1), characterized in that the position of the electronic board (40) aligns it with at least one orifice (21, 22) formed in the housing (1) and configured to receive an electrical connector.
  2. Housing (1) according to the preceding claim, wherein said at least one positioning device (11) is positioned in the vicinity of the orifice (21, 22).
  3. Housing (1) according to the preceding claim, comprising a first orifice (21) arranged to receive a first electrical connector and at least a second orifice (22) arranged to receive a second electrical connector, wherein the positioning device (11) is positioned between the first orifice (21) and the second orifice (22).
  4. Housing (1) according to any one of the preceding claims, delimiting a clearance (135) separated from the interior space (132) by a bottom (133) and configured to receive an electric motor (110), an electrical terminal (20)) being able to electrically connect the electronic card (40) to the electric motor (110).
  5. Housing (1) according to any one of the preceding claims, comprising a sealing member (60) positioned at an interface between a periphery of the interior space (132) and a periphery of the cover (50) so as to guarantee sealing the inner space (132) by said cover (50).
  6. Housing (1) according to the preceding claim, wherein the sealing element (60) is of flexible material or of fine metal or a multilayer combination of metallic and synthetic materials.
  7. Housing (1) according to claims 5 or 6, wherein the positioning device (11) cooperates with the sealing element (60), so as to allow the positioning of said sealing element (60) in a predetermined position relative to the housing (1).
  8. An electric air conditioning compressor (100) for a vehicle, comprising a housing (1) according to any one of the preceding claims.
  9. Compressor according to the preceding claim, comprising a first connector received in a first orifice (21) of the housing (1) and a second connector received in a second orifice (22) of the housing (1), the electronic card (40) being connected to the first connector and the second connector by at least one weld.
  10. Compressor according to any one of claims 8 or 9, comprising an electric motor (110) controlled by a control device (140) and received in a clearance (135) of the housing (1) opposite to the interior space (132), relative to a bottom (133).
  11. Compressor according to the preceding claim, comprising a spiral compression device (120) driven by the electric motor (100).
EP16197150.2A 2015-11-16 2016-11-03 Housing with built-in control device and electric compressor comprising said housing Active EP3168476B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1560969A FR3043878B1 (en) 2015-11-16 2015-11-16 INTEGRATED CONTROLLER UNIT AND ELECTRICAL COMPRESSOR COMPRISING SAID HOUSING

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EP3168476A1 EP3168476A1 (en) 2017-05-17
EP3168476B1 true EP3168476B1 (en) 2019-08-21

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CN (1) CN106953473B (en)
FR (1) FR3043878B1 (en)

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Publication number Priority date Publication date Assignee Title
FR3071695B1 (en) * 2017-09-27 2021-10-22 Valeo Japan Co Ltd COMPRESSOR FOR AUTOMOTIVE AIR CONDITIONING SYSTEM
FR3076179B1 (en) * 2017-10-25 2020-12-04 Valeo Vision BOX FOR ELECTRONIC CARD FOR LUMINOUS DEVICE FOR MOTOR VEHICLE
FR3101288B1 (en) * 2019-09-27 2021-10-29 Valeo Systemes Thermiques Electronic interface box of an electric heating device of a ventilation, heating and / or air conditioning installation of a motor vehicle
CN113285568A (en) * 2020-01-31 2021-08-20 翰昂汽车零部件有限公司 Electric compressor and method for managing manufacturing information of electric compressor

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JPS62198860U (en) * 1986-06-09 1987-12-17
JP3838204B2 (en) * 2003-02-19 2006-10-25 株式会社豊田自動織機 Electric compressor and assembling method of electric compressor
JP2012255381A (en) * 2011-06-09 2012-12-27 Mitsubishi Heavy Ind Ltd Electric compressor
JP2013070028A (en) * 2011-09-07 2013-04-18 Hitachi Automotive Systems Ltd Electronic controller
JP5855899B2 (en) * 2011-10-27 2016-02-09 日立オートモティブシステムズ株式会社 DC-DC converter and power converter
JP6280771B2 (en) * 2013-03-27 2018-02-14 ミネベアミツミ株式会社 Blower, motor and manufacturing method thereof
DE102013210764A1 (en) * 2013-06-10 2014-12-11 BSH Bosch und Siemens Hausgeräte GmbH Fan device for an extractor hood and extractor hood
JP5861673B2 (en) * 2013-06-25 2016-02-16 株式会社豊田自動織機 Electric compressor
US20150083649A1 (en) * 2013-09-20 2015-03-26 Ghsp, Inc. Submersible pumping apparatus with integrated filter and sealed circuitry

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Publication number Publication date
FR3043878A1 (en) 2017-05-19
EP3168476A1 (en) 2017-05-17
FR3043878B1 (en) 2018-07-13
CN106953473B (en) 2021-01-22
CN106953473A (en) 2017-07-14

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