WO2017157529A1 - Appareil électrique pourvu d'un ensemble ventilateur - Google Patents

Appareil électrique pourvu d'un ensemble ventilateur Download PDF

Info

Publication number
WO2017157529A1
WO2017157529A1 PCT/EP2017/025028 EP2017025028W WO2017157529A1 WO 2017157529 A1 WO2017157529 A1 WO 2017157529A1 EP 2017025028 W EP2017025028 W EP 2017025028W WO 2017157529 A1 WO2017157529 A1 WO 2017157529A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
housing
holding part
electrical
circuit board
Prior art date
Application number
PCT/EP2017/025028
Other languages
German (de)
English (en)
Inventor
Reiner Jopien
Werner Gross
Original Assignee
Sew-Eurodrive Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sew-Eurodrive Gmbh & Co. Kg filed Critical Sew-Eurodrive Gmbh & Co. Kg
Priority to EP17707173.5A priority Critical patent/EP3430267B1/fr
Publication of WO2017157529A1 publication Critical patent/WO2017157529A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0693—Details or arrangements of the wiring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps

Definitions

  • the invention relates to an electrical appliance with a fan arrangement.
  • the invention is therefore based on the object to make an electrical appliance in a simple manner with high quality, so low error rate to produce.
  • the electrical device is provided with fan assembly, wherein the fan assembly comprises a holding part and one or more, recorded in the holding part fan, wherein the respective fan each having a fan housing, from which a
  • Supply line protrudes, wherein on the holding part, a guide portion is formed, wherein the respective supply line protrudes from the fan housing of the respective fan in an at least partially bounded by the guide portion cable channel.
  • the advantage here is that during assembly of the respective fan high quality can be achieved. Because the twisting of the fan is prevented or at least when
  • the fan housing in particular the outer surface of a discrete rotational symmetry, in particular around the axis of rotation of the
  • Alignment with the holding part is connectable.
  • the advantage here is that the fan itself, although a symmetry and thus twisted mounted, but the
  • Supply lines prevent twisting against the intended correct orientation or make at least quickly recognizable, namely the subsequent electrical connection to the connector part.
  • the fan housing is square.
  • the advantage here is that a cost-effective simply constructed fan is used.
  • the advantage here is that a simple cost-effective production is possible.
  • the fan is designed as axial fan.
  • the advantage here is that a cost-effective simply constructed fan is used.
  • the respective supply line protrudes from the
  • Fan housing of the respective fan on a surface region of the fan housing, in particular in the limited by the guide portion at least partially
  • Cable duct which is spaced from two adjacent mirror symmetry planes of the fan housing and / or which of a corner region of the fan housing and from the middle between the corner region and a corner region adjacent to this corner region is spaced.
  • the advantage here is that the quality is increased because incorrect assembly can be prevented.
  • the electrical device also has a first circuit board, a second circuit board, a connector part, in particular Platinendirektstecker, wherein the connector is mechanically connected to the holding part, wherein the fan to the connector electrical supply lines of the fan are guided, wherein respective spring contacts of the Connector are in electrical contact with respective tracks of the second circuit board.
  • the electrical device is complex and compact buildable, for example, as a converter.
  • the advantage here is that the fan is electrically connected to the connector in a simple manner and the connector on the one hand and on the other hand, the fan are held by the holding part.
  • a twisted mounting preventable and the fan in the holding part can be installed correctly.
  • the length of the supply lines can be predetermined and thus, with relative to the holding part twisted mounting of the fan, the length of the supply lines would not be sufficient for a connection of the connector part.
  • the fan on the holding part is preassembled, that is connectable to the holding part, so that both form a vorkomplettator unit which is storable in the warehouse and when produced from the camp as a unit downtownholbar.
  • the connector with the holding part is connectable and thus also providable in the vorkomplett striv unit.
  • the holding part with its associated fan and the holding part also connected to the connector part with the housing part allows electrical connection of the connector to the tracks of the second circuit board.
  • the first circuit board is equipped with heat generating electronic components, which are thermally conductively connected to the housing part to dissipate the heat generated to the ambient air. It is advantageous that the heat loss via a heat sink of the housing part to the environment can be discharged.
  • the housing part has cooling ribs, in particular wherein the cooling ribs extend in the direction of the air flow conveyed by the fan.
  • the advantage here is that the air flow conveyed by the fan flows along the cooling fins of the housing part and thus an effective cooling is achievable. Due to the correspondingly correct orientation of the fan to the cooling fins, the effective cooling is thus achievable.
  • the holding part elastically deformable dome in particular four elastically deformable dome, on, wherein the dome are inserted into corresponding recesses of the fan, so that the fan with the holding part in
  • Plug insertion ie in particular in the direction of insertion frictionally and positively connected in the transverse direction to this insertion, in particular where elastically bendable Domabitese the dome in the respective
  • deflectable detents for positive connection in particular clip connection, formed with the connector, in particular engage in a respective corresponding recess on the connector or engage behind a respective corresponding paragraph of the connector, in particular wherein the detents are arranged on both sides of the connector.
  • a stop is formed on the holding part, which limits the connector relative to the holding part in the insertion direction, in particular so that when connecting the holding part to the housing part and thus
  • the connector part abuts the stop.
  • the length of the electrical supply lines is so short that with a twisted orientation of the fan relative to the holding part, the electrical supply lines are not feasible from the fan to the connector.
  • the advantage here is that the supply lines from the fan, in particular from the fan housing, escape eccentrically and thus would be too short when turning the fan to the
  • the connector is held non-positively and / or positively in the intended position on the holding part.
  • the electrical supply lines emerge axially spaced from the axial center of the fan from the fan, in particular wherein the axial direction is the direction of the fan-assisted air flow.
  • Cable length is not sufficient to reach the connector.
  • the correct alignment is enforced in the manufacture, whereby a high quality in the production can be achieved.
  • the domes extend in the direction of the fan-assisted air flow.
  • the advantage here is that the plug-in direction is aligned parallel to the direction of the conveyed air flow.
  • the orientation of the fan is clearly specified and a high quality in the production achievable.
  • the fan is designed as axial fan.
  • the advantage here is that the conveying direction of the air flow is parallel to the direction of extension of the cooling fins and thus flows the conveyed air flow along the cooling fins.
  • the axis of the fan rotatably mounted in the shaft of the fan, with which the fan blade having impeller of the fan is rotatably connected, aligned parallel to the fan-assisted air flow.
  • the mounting direction of the connector is aligned relative to the second circuit board parallel to the air flow supplied by the fan.
  • the electrical appliance is an inverter or a
  • the circuit board is equipped with controllable semiconductor switches as heat-generating components, wherein the components is thermally conductively connected to the housing part, in particular with the cooling fins of the housing part.
  • FIG. 1 shows a cross section through a fan arrangement of an electrical appliance.
  • FIG. 2 shows an oblique view of the fan arrangement.
  • FIG. 3 shows the fan arrangement with a printed circuit board arrangement whose first printed circuit board 31 can be equipped with power electronics, in particular controllable power semiconductor switches, and whose second printed circuit board 30 can be equipped with signal electronics.
  • the fan assembly on a holding part 2, in which two fans 1 are arranged.
  • Each fan 1 has a fan housing and a fan impeller rotatably mounted in the fan housing.
  • the fan 1 is designed as an axial fan, thus promoting an air flow in the direction of the axis of rotation of the fan impeller.
  • the fan housing in each case has a square circumference. The axes of rotation of the fan blades of all fans 1 are aligned in parallel.
  • the fans 1 are received next to each other and touching in the holding part 2. In addition, they are aligned parallel to each other.
  • the holding part 2 has a guide section 3, which surrounds a cable channel, in which supply lines 20 of each fan 1 are guided.
  • the fan housing has an axially directed bore in each corner area of the square, so that when the fan housing is rotated by 90 ° about the axis of rotation of the fan 1, the fan housing would in turn be fastened in the holding part 1.
  • a screw through the respective bore feasible and in the holding part 2 can be screwed.
  • the hole pattern is so square. Therefore, the discrete rotational symmetry is at 90 °.
  • the air flow conveyed by the fans 1 then exits axially and then flows along cooling fins of a metallic housing part.
  • Controllable semiconductor switches of an inverter are thermally conductively connected to the housing part.
  • the semiconductor switches are arranged on a first printed circuit board and electrically connected to conductor tracks of the first printed circuit board.
  • the holding part is preferably made as a plastic injection molded part and leads the air flow conveyed by the fans 1 towards the housing part, in particular towards the cooling ribs of the housing part.
  • a second circuit board 30 Perpendicular to the first circuit board 31, which holds the above-mentioned power electronics, a second circuit board 30 is arranged, which has signal electronics. Both printed circuit boards (30, 31) are electrically connected and held together on the housing part. Thus, the signal electronics generates the pulse width modulated drive signals for the controllable semiconductor switches.
  • a connector which is connected to the supply lines 4 of a first fan, is electrically connected to conductor tracks of the second printed circuit board 30.
  • a supply of the first fan 1 of the second circuit board 30 is made possible.
  • the second fan 1 is electrically connected by means of its supply lines 4 with conductor tracks of the second printed circuit board 30.
  • each fan 1 has four levels of mirror symmetry, which are rotated to the next adjacent by an angle of 45 ° to the fan associated with the axis of rotation.
  • the respective supply line 4 of the respective fan is guided out at the circumference, wherein the peripheral region for the lead-out is arranged closer to the corner region of the fan housing than at the middle between two next adjacent Eckberiechen the fan housing.
  • the lead-out of the supply lines 4 is arranged asymmetrically from the fan housing. In rotation of the fan housing by 90 °, although this would be accommodated again in the holding part 2, but the supply lines 4 would not protrude from the fan housing in the cable channel but would be on another side of the Fan protruding. From there, there would be no way to get into the cable channel.
  • the predetermined length of the respective supply line from the respective fan to the associated connector part (21) counteracts a faulty orientation of the fan 1.
  • the connector part (21) is connected to the supply line 4 of the fan 1 before mounting the fan 1.
  • the length of the supply line 4 is fixed.
  • the holding part 2 has connecting portions 20 which protrude like a tab and thus allow a simple screw connection with the housing part.
  • a continuous recess for performing a screwed into a threaded bore of the housing part connecting screw is arranged in each connecting portion.
  • the guide portion 3 is integrally formed on the holding part 2 and surrounds the
  • Supply line 4 at least partially housing forming.
  • the guide section 3 is arranged between the supply line 4 and the first circuit board.
  • the guide portion 3 protects the supply lines 4 from being damaged by pins or other components mounted on the first printed circuit board.
  • the electrical appliance is preferably for feeding an electric motor, in particular
  • Three-phase motor provided and as a converter, an inverter or a
  • the integrally formed on the housing part 1 cooling fins 2 are aligned with each other and / or the circuit board 4 is substantially parallel.
  • the supply lines 30, in particular supply cable, are provided, which are led to the connector part 21.
  • this connector part 21 is positively connected to the holding part 2, which is made as a plastic injection molded part.
  • the connector part 21 has spring contacts, so that when plugging the connector part 21
  • the length of the protruding from the fan housing of the fan 1 portion of the supply lines 4 is so small that at a rotation of the fan housing by 90 ° or 180 °, the length is not sufficient for connection to the connector part (21) and / or the second circuit board would.
  • the connector part (21) is positively held on the holding part.
  • dome 40 are formed on the retaining part, which are elastically deformable.
  • the domes preferably have a slot, so that the respective dome has two sections, that is to say dome sections, which are elastically bendable and thus bendable toward one another.
  • the fan 1 is designed as axial fan.
  • the flow direction of the funded by the fan 1 air flow is parallel to the extension direction of the cooling fins of the housing part.
  • the air flow conveyed by the fan 1 flows along the cooling fins and absorbs heat generating electronic components to the housing part 1 has flowed heat to dissipate to the ambient air.
  • the air flow sucked in by the fan 1 is sucked in from the ambient air.
  • the domes extend in the flow direction of the conveyed air flow, that is parallel to the direction of extension of the cooling ribs.
  • the first circuit board 31 is aligned parallel to the direction of the air flow supplied by the fan 1.
  • the supply lines 4 protrude from the fan 1 not axially centrally but axially spaced from the axial center of the fan 1, in particular so against the direction of the promoted by the fan 1 air flow shifted to the axial center.
  • the axial center is the center of the axial area covered by the fan 1.
  • the axial direction is parallel to the direction of extension of the cooling ribs and to the direction of the air flow conveyed by the fan 1.
  • controllable semiconductor switches of the inverter are thermally conductively connected to the
  • the heat can be spread there and discharged via the cooling fins to the ambient air.
  • the active ventilation that is, the air flowing past the cooling fins, driven by a fan 1 air flow, improves the heat dissipation, when the fan 1 is aligned in the intended correct manner to the cooling fins.
  • the correct alignment is ensured by the predetermined length of the supply lines 4. Because in case of deviations from the correct orientation these supply lines 4 are too short and therefore can not reach the connector part 21.
  • the dome in particular the Domabbalde the dome, designed with such locking lugs that the fan through Engagement of these locking lugs in correspondingly shaped recesses on the fan is klipsverbindbar with the holding part. 2
  • Connection section connector part second circuit board first circuit board

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Appareil électrique comprenant une partie boîtier, une partie de maintien (2), une carte de circuit imprimé (30, 31), un connecteur enfichable (21) et un ventilateur (1), le connecteur enfichable étant raccordé mécaniquement à la partie de maintien, des lignes d'alimentation électriques (4) du ventilateur étant guidées de ce dernier jusqu'au connecteur enfichable, le ventilateur et la partie de maintien étant introduits dans une poche, notamment un évidement, de la partie boîtier, des contacts élastiques respectifs du connecteur enfichable étant en contact électrique avec des tracés conducteurs respectifs de la carte de circuit imprimé.
PCT/EP2017/025028 2016-03-17 2017-02-14 Appareil électrique pourvu d'un ensemble ventilateur WO2017157529A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17707173.5A EP3430267B1 (fr) 2016-03-17 2017-02-14 Appareil électrique pourvu d'un ensemble ventilateur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016003204.9A DE102016003204A1 (de) 2016-03-17 2016-03-17 Elektrogerät mit Lüfteranordnung
DE102016003204.9 2016-03-17

Publications (1)

Publication Number Publication Date
WO2017157529A1 true WO2017157529A1 (fr) 2017-09-21

Family

ID=58162502

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/025028 WO2017157529A1 (fr) 2016-03-17 2017-02-14 Appareil électrique pourvu d'un ensemble ventilateur

Country Status (3)

Country Link
EP (1) EP3430267B1 (fr)
DE (1) DE102016003204A1 (fr)
WO (1) WO2017157529A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021078404A1 (fr) * 2019-10-24 2021-04-29 Sew-Eurodrive Gmbh & Co. Kg Dispositif électrique, en particulier un onduleur, en particulier un convertisseur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018203629B3 (de) 2018-03-09 2019-06-27 Maico Elektroapparate-Fabrik Gmbh Ventilatoreinsatz zur Anordnung in einem Montagegehäuse, Ventilatoranordnung sowie Verfahren zum Montieren einer Ventilatoranordnung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1222837A (en) * 1916-03-20 1917-04-17 Elbert R Winslow Portable electrical device.
US4483664A (en) * 1980-12-09 1984-11-20 Armbruster Joseph M Portable power device, light and fan
DE20316909U1 (de) * 2002-11-15 2004-02-12 Ebm-Papst St. Georgen Gmbh & Co. Kg Lüfter, insbesondere Gerätelüfter
US20070187128A1 (en) * 2006-02-15 2007-08-16 Hon Hai Precision Industry Co., Ltd. Power supply adapter of ventilation device
US20090238687A1 (en) * 2008-03-21 2009-09-24 Jen-Wei Lin Blower
US20120170218A1 (en) * 2010-12-31 2012-07-05 Hon Hai Precision Industry Co., Ltd. Electronic device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1222837A (en) * 1916-03-20 1917-04-17 Elbert R Winslow Portable electrical device.
US4483664A (en) * 1980-12-09 1984-11-20 Armbruster Joseph M Portable power device, light and fan
DE20316909U1 (de) * 2002-11-15 2004-02-12 Ebm-Papst St. Georgen Gmbh & Co. Kg Lüfter, insbesondere Gerätelüfter
US20070187128A1 (en) * 2006-02-15 2007-08-16 Hon Hai Precision Industry Co., Ltd. Power supply adapter of ventilation device
US20090238687A1 (en) * 2008-03-21 2009-09-24 Jen-Wei Lin Blower
US20120170218A1 (en) * 2010-12-31 2012-07-05 Hon Hai Precision Industry Co., Ltd. Electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021078404A1 (fr) * 2019-10-24 2021-04-29 Sew-Eurodrive Gmbh & Co. Kg Dispositif électrique, en particulier un onduleur, en particulier un convertisseur

Also Published As

Publication number Publication date
EP3430267C0 (fr) 2023-06-28
EP3430267A1 (fr) 2019-01-23
DE102016003204A1 (de) 2017-09-21
EP3430267B1 (fr) 2023-06-28

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