EP3341594A1 - Connecteur électrique d'un actionneur électromagnétique pour soupape - Google Patents
Connecteur électrique d'un actionneur électromagnétique pour soupapeInfo
- Publication number
- EP3341594A1 EP3341594A1 EP16744821.6A EP16744821A EP3341594A1 EP 3341594 A1 EP3341594 A1 EP 3341594A1 EP 16744821 A EP16744821 A EP 16744821A EP 3341594 A1 EP3341594 A1 EP 3341594A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- primary
- assembly
- connector
- terminal
- coil
- 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.)
- Granted
Links
- 239000004020 conductor Substances 0.000 claims abstract description 42
- 210000002105 tongue Anatomy 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 230000008901 benefit Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
- F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
- F01L2009/2115—Moving coil actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
- F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
- F01L2009/2161—Wiring
Definitions
- a first objective is to provide a control assembly of an electromagnetic actuator for engine valve internal combustion device, this assembly comprising an electromagnetic actuator, an electrical control circuit and a connector electrically connecting the electromagnetic actuator and the electrical control circuit, this electrical connector being flexible, compact, lightweight and reliable.
- this coil having a primary end and a secondary end;
- bearing and contact surfaces are flat and positioned so that distances OS and OC are equal
- the length L flat of the electrical connector is defined such that:
- ⁇ R is the radius of the circle of center O passing respectively through the embedding point S and the embedding point C;
- the thickness Ec of the primary and secondary conductors is between 0.04 mm and 0.12 mm and is advantageously 0.08 mm;
- FIG. 3 is a sectional view along the plane III-III of FIG. 2 with two medallions of detail on an enlarged scale;
- FIG. 5 is a perspective view of detail of the attachment of a sole of the electrical connector on a support
- Figure 8 is a front view of the electrical connector
- Figure 9 is a bottom view of the electrical connector.
- the engine 2 comprises, for each cylinder, at least one intake valve and an exhaust valve.
- valve is generalized so that the valve 3 shown and described can be likened to either an intake valve or a valve of exhaust.
- a control assembly 8 can control each valve 3 of the internal combustion engine 2.
- a control assembly 8 comprises an electromagnetic actuator 9 actuating the valve 3, an electric control circuit 10 controlling the actuator 9 and an electrical connector 11 electrically connecting the electromagnetic actuator 9 and the electrical control circuit 10.
- the various electrical control circuits associated with the various valves 3 of the engine 2 are themselves under control of a computer (also called engine control).
- the computer independently controls each electromagnetic actuator 9 via the electrical control circuit 10 with which it is associated, in order to synchronize the valves 3 with the other elements of the engine 2, such as the pistons.
- each actuator 9 comprises, on the one hand, an armature 12 fixed relative to the cylinder head 6 and defining a magnetic circuit 13, and on the other hand, a mobile crew 14 .
- the magnetic circuit 13 includes on the one hand an annular magnet 15 which extends symmetrically about the central axis X, and on the other hand, an upper annular pole piece 16 and a lower annular pole piece 17. , these pole pieces 16, 17 being symmetrical about the central axis X and sandwiching the magnet 15.
- the magnetic circuit 13 further comprises a central core 18 which is in the form of a cylinder of revolution around the central X axis.
- the magnetic circuit 13 generates a magnetic field whose field lines are toric around the central axis X.
- the coil 22 further has a primary end 23 and a secondary end 24 through which the coil 22 is supplied with current, these ends 23, 24 primary and secondary projecting out of the carcass 19 near the base 20 as shown in Figure 4.
- valve 3 is integrated with the moving crew 14 being secured to the carcass 19, for example by means of screws.
- the supply of the coil 22 with a positive current allows the displacement of the valve 3 in one direction and respectively in a reverse direction when the coil 22 is supplied with a negative current.
- the electrical control circuit 10 is fixed relative to the armature 12, and comprises a primary terminal 25 and a secondary terminal 26, the terminals 25, 26 primary and secondary being respectively able to be connected to the ends 23, 24 of the reel
- each terminal 25, 26 has a flexible, electrically conductive extender 27, for example in the form of an electric cable, this flexible extension 27 making it possible to adapt to the external environment between the electrical control circuit and the electrical connector 11.
- the electrical connector 11 comprises on the one hand a primary conductor 28 electrically connecting the primary terminal 25 of the electrical control circuit 10 to the primary end 23 of the coil 22, and on the other hand, a secondary conductor 29 connecting electrically the secondary terminal 26 of the electrical control circuit 10 at the secondary end 24 of the coil 22.
- the primary and secondary conductors 28, 29 are each in the form of a flexible blade and are contiguous with the interposition of a layer Insulation.
- the electrical connector 11, in the mounted position, has a curved body 32 (in particular circular or elliptical) delimited laterally by a primary sole 33 and a sole 34 secondary.
- the soles 33, 34 primary and secondary each represent an end portion of the electrical connector 11 in contact respectively with a bearing surface 35 of the support 31 and a contact surface 38 of the carcass 19.
- the body 32 is circular, each sole 33, 34 being flat and tangential to the body 32.
- the primary sole 33 is fixed on the flat support surface 35 of the support 31, via a washer 36 shouldered and a screw 37.
- the secondary sole 34 is fixed on the flat contact surface 38 of the carcass 19 via a washer 36 shouldered and a screw 37.
- Shouldered washers 36 and screws 37 are made of a non-electrically conductive material, for example a polymeric material.
- the flat length L (in the rest position) of the connector 11 is expressed in the following manner (A being expressed in degrees):
- the angle A is between 180 ° and 225 °, and is preferably 215 °.
- the heights Hs and Hc are between 1 mm and 7 mm, and are advantageously 4 mm.
- the radius R is between 4 mm and 12 mm, and is advantageously 8.6 mm.
- the soles 33, 34 primary and secondary respectively have a height equal to the heights Hs and Hc, and the body 32 of the electrical connector 11 is defined according to the geometric characteristics of the arc 40, namely an outside radius R and an angle A.
- the primary conductor 28 (respectively the secondary conductor 29) comprises two tongues 41, each tongue 41 extending in axial projection at a sole 33, 34, both tongues 41 facing one another, each tongue 41 comprising a hole 42 adapted to receive either one of the ends 23, 24 of the coil 22 or the extension 27 of one of the terminals 25, 26 of the electrical control circuit 10.
- the tabs 41 of the primary conductor 28 are opposed to the tabs 41 of the secondary conductor 29.
- the primary end 23 of the coil 22 and the primary terminal 25 of the electrical control circuit 10 are electrically connected to the primary conductor 28 via the tongues 41.
- the secondary end 24 of the coil 22 and the terminal 26 secondary of the electric control circuit 10 are electrically connected to the secondary conductor 29 via the tabs 41.
- each end 23, 24 of the coil 22 is first introduced into the hole 42 of the corresponding tongue 41, then in a second step, the end 23, 24 is for example welded to the tongue 41 so as to have electrical continuity.
- each denuded extension 27 is first introduced into the hole 42 of the corresponding tongue 41, then in a second step, the stripped portion of the extension 27 is welded to the tongue 41, so as to have a electrical continuity.
- the conductors 28, 29 primary and secondary are in the form of a flexible blade made of a conductive material having a high electrical conductivity, such as copper, these conductors 28, 29 having a thickness Ec and a width The (width measured at the body 32 of the connector 11 and in other words not taking into account the tongue 41), as illustrated in FIGS. 8 and 9.
- the thickness Ec is for example between 0.04 mm and 0.12 mm, and is preferably 0.08 mm.
- the width Le is for example between 2 mm and 8 mm, and is advantageously 5 mm.
- the insulating layer 30 is made of a non-electrically conductive material, such as cardboard or a polymeric material.
- the insulating layer 30 has the function of electrically isolating the conductors 28, 29 from each other.
- the electrical connector 11 comprises an additional insulating layer 30 which is contiguous to the primary conductor 28, so that the primary conductor 28 is interposed between two insulating layers 30.
- the electrical connector 11 comprises two additional insulating layers 30 which are respectively contiguous to the primary conductor 28 and the secondary conductor 29, so that each conductor 28, 29 is interposed between two layers 30 insulating.
- control assembly 8 which has just been described offers the following advantages.
- the mounting of the electrical connector 11 is formed by means of two washers 36 stepped and two screws 37 for the benefit of productivity.
- the low mass of the connector 11 can participate in the decrease in fuel consumption and pollutant emissions of the vehicle 1.
- the electrical connector 11 is compact to the benefit of the overall size of the engine 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1557937A FR3040552B1 (fr) | 2015-08-26 | 2015-08-26 | Connecteur electrique d'un actionneur electromagnetique pour soupape |
| PCT/FR2016/051767 WO2017032930A1 (fr) | 2015-08-26 | 2016-07-11 | Connecteur électrique d'un actionneur électromagnétique pour soupape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3341594A1 true EP3341594A1 (fr) | 2018-07-04 |
| EP3341594B1 EP3341594B1 (fr) | 2019-05-22 |
Family
ID=54707929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16744821.6A Not-in-force EP3341594B1 (fr) | 2015-08-26 | 2016-07-11 | Connecteur électrique d'un actionneur électromagnétique pour soupape |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3341594B1 (fr) |
| FR (1) | FR3040552B1 (fr) |
| WO (1) | WO2017032930A1 (fr) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0972912A1 (fr) * | 1998-07-15 | 2000-01-19 | Fuji Oozx Inc. | Dispositif électrique de commande de soupape pour moteur a combustion interne |
-
2015
- 2015-08-26 FR FR1557937A patent/FR3040552B1/fr not_active Expired - Fee Related
-
2016
- 2016-07-11 EP EP16744821.6A patent/EP3341594B1/fr not_active Not-in-force
- 2016-07-11 WO PCT/FR2016/051767 patent/WO2017032930A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3040552A1 (fr) | 2017-03-03 |
| EP3341594B1 (fr) | 2019-05-22 |
| FR3040552B1 (fr) | 2017-08-25 |
| WO2017032930A1 (fr) | 2017-03-02 |
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