EP2893782A1 - Dispositif électrique et compresseur électrique - Google Patents
Dispositif électrique et compresseur électriqueInfo
- Publication number
- EP2893782A1 EP2893782A1 EP13756620.4A EP13756620A EP2893782A1 EP 2893782 A1 EP2893782 A1 EP 2893782A1 EP 13756620 A EP13756620 A EP 13756620A EP 2893782 A1 EP2893782 A1 EP 2893782A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrical
- housing
- circuit
- metal
- contact end
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0215—Grounding of printed circuits by connection to external grounding means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
- H05K1/023—Reduction of cross-talk, noise or electromagnetic interference using auxiliary mounted passive components or auxiliary substances
- H05K1/0231—Capacitors or dielectric substances
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/05—Insulated conductive substrates, e.g. insulated metal substrate
- H05K1/053—Insulated conductive substrates, e.g. insulated metal substrate the metal substrate being covered by an inorganic insulating layer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/04—Metal casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
- H05K7/14322—Housings specially adapted for power drive units or power converters wherein the control and power circuits of a power converter are arranged within the same casing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10015—Non-printed capacitor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/1028—Thin metal strips as connectors or conductors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/10409—Screws
Definitions
- the present invention relates to an electric device and an electric compressor.
- FIG. 3 represents an electric device of the state of the art comprising a box 2 formed by an electric mass and having an electric circuit 4.
- the electric circuit 4 comprises a metal substrate 6 , a layer of dielectric material 8 extending over the entire upper face of the metal substrate 6, and metal tracks, such as the track 10 shown, extending over the layer of dielectric material 8.
- Electrical components such as the component 12 shown, are electrically connected to the tracks so as to be electrically connected to each other, in order to achieve a desired function.
- the electrical device further comprises a capacitor 14, for example a class Y capacitor, having a terminal connected to the metal track 10 and a terminal connected to the housing 2.
- a busbar 16 connects a terminal of the capacitor 14 to the track 10, while another busbar 18 connects another terminal of the capacitor 14 to the housing 2.
- the bus bars 16, 18 are generally screwed to the elements they connect.
- the invention relates to an electrical device comprising an electrical circuit comprising a metal substrate, a layer of dielectric material extending over the metal substrate, and a metal track extending over the layer of dielectric material, characterized in that it further comprises u binding conductive part intended to be connected to an electrical mass and having a first contact end intended to be plated against the metal track, and a pusher device intended to take, on the one hand, a first position, called a closed position, in which the pusher device presses on a bearing part of the conductive connecting piece to press the first end of contact against the metal track, the support portion being located at a distance from the first contact end, and secondly, a second position, called the open position, in which the pusher device allows the separation of the first end of contact of the metal track.
- the invention it is possible to dispense with the bus bar.
- the mechanical strength of attachment of an electrical component for filtering a common mode current is improved since a track attachment is better than a bus bar attachment.
- the use of the bus and bus and the possibility of separating the electrical circuit from the housing allows to have a larger space to perform dielectric strength tests on the electrical circuit.
- the electrical device further comprises a metal housing forming the electrical mass and forming a support for the electrical circuit.
- the electrical circuit is sandwiched between the metal housing and the first contact end of the conductive connecting piece.
- the conductive connecting piece has a second contact end intended to be pressed against the metal casing, and the pusher device is intended, in its closed position, to press the support part to press the second contact end against the metal housing, and in its open position to separate the second contact end of the metal housing.
- the pusher device comprises a screw screwed through the conductive connecting piece, the screw having a head intended to press on the bearing portion of the conductive part and an end opposite the head and intended to to be fixed to the metal casing, said screw being intended to be selectively screwed and unscrewed to move from one position to the other of the pusher device.
- the metal case is pierced with an opening, said opening having an insulating material in which the end of the screw is configured to be screwed to be attached to the metal case.
- the electrical circuit further comprises an electrical component having a first terminal connected by melting material to the metal track.
- the terminals of the electrical component are brazed together.
- the electrical component is a capacitor for filtering a common mode current in said circuit.
- the housing comprises at least one flange intended to come face to face with at least one peripheral edge of the circuit, the connecting piece making the connection to the electrical ground while bearing on the housing edge and on the electrical circuit, in particular on the peripheral edge, and / or in particular by spanning a space between the flange and the peripheral edge of the circuit.
- the invention also relates to an electric compressor comprising an electrical device according to the invention, wherein the electrical device is an inverter.
- FIG. 1 is a simplified view of an electric compressor according to the invention.
- FIG. 2 is a sectional view, from the side, of a housing and an electric circuit of the electric compressor of Figure 1;
- FIG. 3 already described, is a sectional side view of a housing and an electrical circuit according to the prior art.
- the electric compressor 100 comprises in particular a le leu r 102, aya nt function to deliver a voltage and / or alternating current from a source of continuous electrical energy.
- the inverter 102 includes an electrical circuit 104 for performing, at least in part, the inverter function, and a metal housing 106 enclosing the circuit 104.
- the housing 106 forms an electrical ground.
- the housing 106 forms a plane support for the circuit 104.
- the electrical circuit 104 firstly comprises a metal substrate 202 electrically connected to the housing 106.
- the substrate 202 is in the form of a plate having a lower face. pressed against the housing 106.
- the substrate 202 is for example an aluminum layer.
- the circuit 104 further comprises thermal conductive grease 204 interposed between the housing 106 and the substrate 202, so as to ensure a thermal continuity between the two and thus dissipate in the housing 106 the heat
- the grease 204 allows the electrical conduction between the substrate 202 and the housing 106, so as to achieve electrical conduction between the housing 106 and the substrate 202 through the underside of the latter.
- Circuit 104 further comprises a layer of dielectric material 206 extending over a first portion of substrate 202 on an upper face thereof.
- the dielectric material is, for example, ceramic.
- the electrical circuit 104 further comprises metal tracks, such as the tracks 208, 210 and 212 shown, extending over the layer of dielectric material 206.
- the tracks are made of copper.
- circuit 104 An electrical circuit such as circuit 104 is often referred to by the acronym SM I, meaning “Isolated Metallic Substrate”, or the acronym IMS, "Insulated Metal Substrate”.
- the invention also comprises electrical components, such as the components 214 and 216 shown, electrically connected to the tracks so as to be electrically connected to each other, in order to achieve, at least in part, the function of inverter.
- the components are connected by melting material to the tracks by soldering in the example described.
- the electrical component 214 has a first terminal connected by melting material to the metal track 208, and a second terminal connected by melting material to the track 210.
- the electrical component 216 has a first terminal connected by melting material to the metal track 210, and a second terminal connected by melting material to the track 212. In the example described where the brazing is used, these bonds don t occur to solders represented dashed in the figure.
- the component 214 is intended to be connected to the electrical earth comprising, in the example described, the housing 106.
- the electrical component 212 is a capacitor, for example a class Y capacitor, known in itself.
- the inverter 102 further comprises a connecting conductive part 218 intended to connect the track 208 to the electrical earth formed, in the example described, by the housing 106.
- conductive connecting piece 218 is for example metallic.
- the connecting conductive member 218 has a first contact end 220 to be releasably plated against the track 208 and a second contact end 222 to be releasably plated against the housing 106.
- the inverter 102 further comprises a pusher device 224 for selectively taking a first position, said closed position, and a second position, said open position.
- the pusher device 224 In the closed position, the pusher device 224 is intended to press a bearing portion 226 of the conductive connecting piece 218 to press the latter against the track 208, and to press the second contact end 222 against the housing 106.
- the part of a since 226 is located dista nce from the first contact end 220 and the second contact end 222.
- the pusher device 224 is intended to release the support on the part of support 226 so as to allow the separation of the first contact end 220 of the metal track 208, and the separation of the second contact end 220 of the metal housing 106.
- the pusher device 224 comprises a screw 228 screwed through the portion 226 of the conductive connecting piece 218, and having a head 230 intended to press on the portion 226.
- the screw 228 presents in addition to an end 232 opposite the head 230 and fixed to the housing 106.
- the screw 228 is intended to be screwed to put the pusher device 224 in the closed position.
- the head 230 presses on the bearing portion 226 of the conductive connecting piece 218.
- the screw 228 is in further intended to be unscrewed, for example until removed, to put the pusher device 224 in the open position. In this case, the head 230 no longer bears on the bearing portion 226 and the conductive connecting piece 218 can be removed.
- the casing 106 is pierced with an opening 234, and the inverter 102 co m carries a single chevi l isola nte 236 i nsére rée in the opening 234.
- the end 232 of the screw 228 is thus intended to be screwed into the insulating pin 236 to be fixed to the casing 106. In this way, no common-mode current passes into the screw between the conductive connecting piece 218 and the casing 106.
- the metal track 208 and the housing 106 each have a surface treated to facilitate electrical conductivity with respectively the first contact end 220 and the second contact end 222.
- the component 214 Since the component 214 is connected to the tracks 208, 210 by melting material, it can be mounted together with the other components, such as the component 216, in a single passage in a furnace. Then, validation tests of the components of the circuit 104 can be conducted without the connection to the ground is achieved, which is often necessary for these tests. It is only in a third step that the conductive connecting piece 218 is added and held in place by the pusher device 224. It will be appreciated that this third step does not require the circuit 104 to be returned to the oven.
- the common-mode current from component 216 goes into track 210, then through component 214, then into track 208, into connecting conductor 218 in the housing 106 in the metal substrate 202, then returns to the component 216 through the layer of dielectric material 206.
- brazing could be replaced by welding.
- the bearing portion 226 of the conductive connecting piece 218 is located at a distance from the first contact end 220, it is no longer necessary to pass through the electrical circuit 104 to press the first contact end 220. contact end 220 against the metal track 208.
- a support of the connecting piece 218 on the electrical circuit 104 can be obtained without crossing the electrical circuit 104. It is therefore not necessary to provide a coast between a hole of passage and an edge of the electric circuit 104, which improves the integration density of the circuit 104.
- the pusher device 224 bears on the bearing portion 226 of the conductive connecting piece 218 without passing through the circuit 104.
- the housing 106 comprises at least one flange 106a intended to come opposite at least one peripheral edge of the circuit 104.
- the connecting piece 218 performs the connection to the electrical ground by spanning a space between the flange 106a and the peripheral edge of the circuit 104.
- the pusher device 224 is intended to press the connecting piece 218 by passing a rod, for example the screw 228, between the flange 106a of the housing and the peripheral edge of the circuit 104.
- An electrical device (102) comprising:
- an electrical circuit (104) comprising:
- a conductive connecting piece (218) intended to be connected to an electrical ground (106) and having a first contact end (220) intended to be pressed against the metal track (208), and
- a pusher device (224) intended to take, on the one hand, a first position, called a closed position, in which the pusher device (224) bears on a bearing part (226) of the conductive connecting piece (218); ) for pressing the first contact end (220) against the metal track (208), the bearing portion (226) being located away from the first contact end (220), and on the other hand, second position, called the open position, wherein the pusher device (224) has the separation of the first contact end (220) of the metal track (208).
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Inverter Devices (AREA)
- Compressor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1258431A FR2995495B1 (fr) | 2012-09-10 | 2012-09-10 | Dispositif electrique et compresseur electrique |
| PCT/FR2013/051828 WO2014037638A1 (fr) | 2012-09-10 | 2013-07-29 | Dispositif électrique et compresseur électrique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2893782A1 true EP2893782A1 (fr) | 2015-07-15 |
Family
ID=47356073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13756620.4A Withdrawn EP2893782A1 (fr) | 2012-09-10 | 2013-07-29 | Dispositif électrique et compresseur électrique |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20150264802A1 (fr) |
| EP (1) | EP2893782A1 (fr) |
| CN (1) | CN104718800A (fr) |
| FR (1) | FR2995495B1 (fr) |
| WO (1) | WO2014037638A1 (fr) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6188019B1 (en) * | 1997-09-26 | 2001-02-13 | Temic Telefunken Microelectronic Gmbh | Plastic housing for receiving an electrical printed circuit board |
| US20110194255A1 (en) * | 2010-02-09 | 2011-08-11 | Honda Elesys Co., Ltd. | Electronic component unit and manufacturing method thereof |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3020902A1 (de) * | 1980-06-02 | 1981-12-17 | Robert Bosch Gmbh, 7000 Stuttgart | Elektronisches steuergeraet, insbesondere fuer kraftfahrzeuge |
| US4730819A (en) * | 1986-06-02 | 1988-03-15 | The United States Of America As Represented By The Secretary Of The Navy | Printed circuit board clamp fixture |
| US5066235A (en) * | 1989-07-21 | 1991-11-19 | Nec Corporation | Connector assembly for electronic devices |
| DE9114287U1 (de) * | 1991-11-16 | 1993-03-18 | Robert Bosch Gmbh, 7000 Stuttgart | Elektrisches Schaltgerät |
| JP2854757B2 (ja) * | 1992-06-17 | 1999-02-03 | 三菱電機株式会社 | 半導体パワーモジュール |
| US5439398A (en) * | 1992-12-10 | 1995-08-08 | Radio Frequency Systems, Inc. | Transistor mounting clamp assembly |
| US5500789A (en) * | 1994-12-12 | 1996-03-19 | Dell Usa, L.P. | Printed circuit board EMI shielding apparatus and associated methods |
| JPH10125560A (ja) * | 1996-10-21 | 1998-05-15 | Honda Motor Co Ltd | 有機溶媒を電解液とするコンデンサ用セパレータおよびその製造方法 |
| US5883782A (en) * | 1997-03-05 | 1999-03-16 | Intel Corporation | Apparatus for attaching a heat sink to a PCB mounted semiconductor package |
| US5934916A (en) * | 1998-02-24 | 1999-08-10 | Illinois Tool Works Inc. | Printed circuit board mounting rail member and ground clip assembly |
| FR2802350B1 (fr) * | 1999-12-14 | 2002-02-01 | Alstom | Equipement electronique |
| JP4218193B2 (ja) * | 2000-08-24 | 2009-02-04 | 三菱電機株式会社 | パワーモジュール |
| US6940412B2 (en) * | 2001-09-13 | 2005-09-06 | Siemens Vdo Automotive Corporation | Method and apparatus for confirming control unit mount to non-conductive surface |
| JP2004158605A (ja) * | 2002-11-06 | 2004-06-03 | Konica Minolta Holdings Inc | プリント配線基板、及びプリント配線基板の導電性筐体への取付方法 |
| DE102008000976A1 (de) * | 2008-04-03 | 2009-10-08 | Robert Bosch Gmbh | Mehrlagen-Leiterplatte sowie elektrisches/elektronisches Modul |
| JP4421663B1 (ja) * | 2008-09-10 | 2010-02-24 | 株式会社東芝 | プリント配線板、電子機器 |
| JP5212019B2 (ja) * | 2008-10-28 | 2013-06-19 | 住友電装株式会社 | 電気接続箱および該電気接続箱の組立方法 |
| US8057239B2 (en) * | 2009-04-29 | 2011-11-15 | GM Global Technology Operations LLC | Power module assembly |
| CN201854027U (zh) * | 2010-11-23 | 2011-06-01 | 上海伊莱克斯实业有限公司 | 一种可兼容多种安装轨道的电涌保护器 |
| TWM413319U (en) * | 2011-05-13 | 2011-10-01 | Askey Computer Corp | Heat-dissipating casing for communication apparatus |
-
2012
- 2012-09-10 FR FR1258431A patent/FR2995495B1/fr active Active
-
2013
- 2013-07-29 US US14/426,876 patent/US20150264802A1/en not_active Abandoned
- 2013-07-29 WO PCT/FR2013/051828 patent/WO2014037638A1/fr not_active Ceased
- 2013-07-29 CN CN201380053276.XA patent/CN104718800A/zh active Pending
- 2013-07-29 EP EP13756620.4A patent/EP2893782A1/fr not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6188019B1 (en) * | 1997-09-26 | 2001-02-13 | Temic Telefunken Microelectronic Gmbh | Plastic housing for receiving an electrical printed circuit board |
| US20110194255A1 (en) * | 2010-02-09 | 2011-08-11 | Honda Elesys Co., Ltd. | Electronic component unit and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2014037638A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104718800A (zh) | 2015-06-17 |
| US20150264802A1 (en) | 2015-09-17 |
| FR2995495A1 (fr) | 2014-03-14 |
| WO2014037638A1 (fr) | 2014-03-13 |
| FR2995495B1 (fr) | 2015-09-04 |
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