EP2232516A2 - Appareil electrique tel qu'un interrupteur - Google Patents
Appareil electrique tel qu'un interrupteurInfo
- Publication number
- EP2232516A2 EP2232516A2 EP08872037A EP08872037A EP2232516A2 EP 2232516 A2 EP2232516 A2 EP 2232516A2 EP 08872037 A EP08872037 A EP 08872037A EP 08872037 A EP08872037 A EP 08872037A EP 2232516 A2 EP2232516 A2 EP 2232516A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- electrical apparatus
- blade
- movable
- fixed
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 35
- 239000000126 substance Substances 0.000 claims description 26
- 244000007853 Sarothamnus scoparius Species 0.000 claims description 13
- 238000002955 isolation Methods 0.000 claims description 9
- 239000011345 viscous material Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/12—Movable parts; Contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
Definitions
- the present invention generally relates to electrical appliances of the kind comprising a first connection terminal; a fixed contact electrically connected to said first connection terminal; a second connection terminal; a mobile contact; a conductive broom carrying said movable contact and electrically connected to said second connection terminal; an elastic member for biasing said brush towards one or the other of two stable positions, respectively a conduction position where said movable contact is applied against said fixed contact and an isolation position where said moving contact is away from said fixed contact; and an actuator mechanically connected to said conductive broom.
- the noise starts when the moving contact abuts against the fixed contact, which happens in practice abruptly. This results in a more or less loud noise that spreads quickly to the rest of the device.
- French patent FR 2 698 719 proposes to provide an elastically deformable tab which provides momentary braking of the movable contact before the abutment with the fixed contact.
- the invention aims to further improve the comfort of use of such a device. It proposes for this purpose an electrical apparatus comprising:
- an elastic element for biasing said brush towards one or the other of two stable positions, respectively a conduction position where said movable contact is applied against said fixed contact and an isolation position where said movable contact is at gap of said fixed contact;
- an operating member mechanically connected to said conductive broom; characterized in that said apparatus further comprises: - a fixed wall;
- a movable wall mechanically bonded to said brush, said fixed wall and said movable wall being arranged to be moved in a relative movement when said brush moves from one to the other of said conduction position and isolation position; and - a viscous fluid substance sandwiched between said fixed wall and said movable wall in each of said conduction position and isolation position and in each intermediate position therebetween.
- the viscous fluid substance moderates the speed of approach of the moving contact and therefore allows an attenuation of the impact between the movable contact and the fixed contact, which prevents any untimely rebound of the contact O
- This attenuation of the shock also causes a strong attenuation of the noise generated and more generally a smooth operation, while flexibility, particularly comfortable.
- the damping viscous fluid substance has the advantage of not influencing the pressure exerted between the fixed contact and the movable contact in the conduction position. Indeed, in this abutment position, the moving contact is immobile (zero speed) and no fluid friction force disturbs the action of the elastic element.
- this fluid friction force is proportional to the surface value of the smallest of the fixed and mobile walls sandwiching the fluid substance, to the dynamic viscosity of the fluid substance, to the speed of the relative movement between these two walls, and inversely proportional to their distance with respect to each other, these parameters being chosen as a function of the return force of the spring and the smooth operation desired.
- the viscous fluid substance wets a surface of said fixed wall and a surface of said movable wall which are opposite and at a substantially different distance from each other; constant one of the other;
- said wetted surface of said fixed wall and said wetted surface of said movable wall are planar;
- said electrical apparatus comprises a tank containing said viscous fluid substance, and a blade immersed in said tank, said tank and said blade having said fixed wall for one and said movable wall for the other;
- said blade comprises said movable wall and said tray comprises said fixed wall; said blade is rigidly connected to a lateral element of said operating member;
- said blade is formed in one piece with said operating member
- - Said tank comprises two walls respectively forming a first said fixed wall and a second said fixed wall between which is disposed said blade comprising said movable wall;
- said electrical apparatus further comprises said tank, another similar tank and in which another blade similar to said blade is disposed; - Said tank and said other tray are disposed on either side of said operating member; and or
- Said operating member is a button formed in one piece with two said blades located on either side of said key, each of said pay being immersed in a respective tray containing said viscous fluid substance.
- FIG. 1 is a simplified perspective view of an electrical apparatus according to the invention
- - Figure 2 is a view similar to Figure 1, but where the portion to the right of the VV plane has been torn off;
- - Figure 3 is a view similar to Figure 1 taken at a slightly different angle of view, where the operating member is away from the rest of the apparatus;
- - Figure 4 is a simplified perspective view of the assembly comprising the conductive broom and the cradle on which the broom is hinged;
- FIGS. 5 and 6 are simplified cross-sectional views of the apparatus of FIG. 1 along the planes marked respectively by V-V and V
- FIG. 7 is an enlargement of detail VII of FIG. 6;
- FIG. 8 is a simplified perspective view of an electrical apparatus according to a variant of the invention.
- FIG. 9 is an enlarged perspective view of an element of the electrical apparatus according to the variant of FIG. 8.
- the electrical apparatus 1 illustrated in FIGS. 1 to 7 is a to-and-fro switch which comprises a key pivotally mounted on a housing 3, a first fixed contact 4A (FIG. housing 3, a second fixed contact 4B also disposed on the housing 3 and located opposite the first fixed contact 4A, and a movable contact 5 rigidly connected with the key 60.
- the movable contact 5 is adapted to occupy alternately two stable positions :
- the housing 3 comprises a generally flat front wall 10 of rectangular shape which has in the central part a recess 11.
- This recess 11 is delimited by two longitudinal walls 12A and 12B opposite, two transverse walls 13A and 13B also facing and a bottom wall 14 (Figure 3). Of generally parallelepipedal shape, the recess 11 has a slightly length b
- the longitudinal wall 12A (respectively 12B) is extended opposite the recess 11 (thus projecting from the front wall 10) by a flange 15A (respectively 15B).
- the bottom wall 14 has a central portion 16 disposed parallel to the front wall 10 and has a central recess 17 of square shape.
- the central portion 16 is extended on either side by two lateral portions 18 and 19 inclined in a direction opposite to the front wall 10 and which respectively join the transverse walls 13A and 13B.
- the longitudinal walls 12A, 12B and the transverse walls 13A, 13B extend beyond the recess 11 at the side portions 18 and 19 to accommodate the connection terminals 20, 21A and 21B.
- connection terminals 20 and 21A are arranged side by side and close to the transverse wall 13A, while the connection terminal 21 B is disposed opposite the terminal 21A and near the transverse wall 13B.
- the housing 3 also has the plumb with the central portion
- This rear element 22 comprises two walls 23A and 23B facing one another and which extend parallel to the transverse walls 13A and 13B respectively along the connection terminals 20, 21A and 21B.
- the two walls 23A and 23B of the element 22 are connected to one another by a wall 24 which extends parallel to the central portion 16 of the bottom wall 14.
- connection terminals 20, 21A and 21B are automatic insertion terminals but alternatively, the latter are of a different type, for example connection terminals with hole and screw .
- the terminal 20 is electrically connected to the movable contact 5 rigidly connected to the key 60
- the terminal 21 A is electrically connected to the fixed contact 4A
- the terminal 21 B is connected to the fixed contact 4B.
- the contacts 4A and 4B are arranged facing each other, on either side of the movable contact 5 and respectively against the walls 23A and 23B.
- the fixed contact 4A located at one end of a bendable conductive strip 25A (respectively 25B), has a contact bump 26A (respectively 26B) protruding from this strip 25A (respectively 25B).
- the other end of the strip 25A (respectively 25B) is connected to the terminal 21A (respectively 21B).
- one of the terminals 21A or 21A For use as a single switch, one of the terminals 21A or
- a metal cradle 30 (see more particularly Figure 4) is disposed on the periphery of the recess 17. It comprises two triangular panels 31A and 31B disposed opposite one another and extending parallel to the longitudinal walls 12A and 12B in the direction of the front wall 10. Each of the triangular panels 31A and 31B has at its top, a notch 32A, 32B.
- the cradle 30 also comprises two crosspieces 33 and 34 respectively connecting the first and second ends of the bases of the triangular panels 31 A and 31 B.
- the crossbar 33 is connected to a tongue 35 which extends in the direction of the transverse wall 13A against the lateral portion 18 of the bottom wall
- a tab 36 which takes root in the central zone of the tongue 35 extends through the lateral portion 18 to the connection terminal 20 to which it is electrically connected by welding or punching.
- a finger 37 extends from the central portion of the crosspiece 34 towards the crosspiece 33 and the bottom wall 14, the distal end of the finger 37 having a notch 38. ⁇ 01648
- a flat conductor blade 40 comprising the movable contact 5 is provided to articulate with the cradle 30 of the housing 3.
- This conductive broom 40 has a head 41 provided with a notch
- the conductive broom 40 also comprises two pins 47A and 47B which project on either side of the shoulder 43, and which are adapted to cooperate with the notches 32A, 32B so as to make a pivot connection of the conductive mop 40 with respect to the cradle 30.
- Maintaining the conductive broom 40 on the cradle 30 is provided by a spring 48 having a central helical portion protruding from both sides hooks respectively engaged with the notch 38 of the finger 37 and with the notch 42 of the head 41.
- the spring 48 occupies an unstable position in which the distance between the two hooks is maximum. In practice, this spring 48 tends to occupy a more retracted position by rotating the blade 40 to bring it to a first position in which the grain 46A of the movable contact 5 is in electrical contact with the grain 26A of the fixed contact 4A or in a second position in which the grain 46B of the movable contact 5 is in electrical contact with the grain 26B of the fixed contact 4B (FIG. 5).
- the two longitudinal walls 12A and 12B of the recess 11 respectively project, two trays 50A, 5OB similar and arranged opposite one another.
- the tank 5OA (respectively 50B) is delimited by the longitudinal wall 12A (respectively 12B), a longitudinal longitudinal wall 51A (respectively 51B) parallel to the side wall 12A (respectively 12B), two flat transverse walls 52A (respectively 52B) and 53A (respectively 53B) also parallel, and a flat bottom wall 54A (respectively 54B).
- the tray 5OA extends along the central portion of the side wall 12A (respectively 12B), since the free end of the flange 15A
- the inner wall 51 A (respectively 51B) has at its free end 55A (respectively 55B) located at the front wall 10, a rectangular central recess 56A (respectively 56B).
- Tray 5OA (respectively 50B) contains a volume of a viscous fluid substance 57A (respectively 57B) such as grease or silicone gel.
- This substance 57A (respectively 57B) has a sufficiently high dynamic viscosity so that it does not flow trays 5OA and 5OB regardless of their spatial orientation.
- the substance 57A (here identical to the substance 57B) is relatively stable over time so that its viscosity remains constant or approximately during the life of the electrical appliance 1, independently of the mechanical stresses exerted on it. .
- the key 60 comprises two longitudinal walls 61 A, 61 B plane and parallel to each other, two end walls 62A, 62B curves facing one another and a plate 63 slightly concave.
- the longitudinal wall 61 A (respectively 61B) has in its central part, a slot (not visible in the figures relating to this embodiment, but similar to the slot 64B 'of the variant illustrated in Figure 9, which will be described later ). This slot extends from its free edge 65A
- the lateral element 66A (respectively 66B) has a hemi-circular section wall 67A (respectively 67B) which takes root on the outer face of the longitudinal wall 61 A (respectively 61B) at the level of ⁇ Q
- the lateral element 66A also comprises a blade 68A (respectively 68B) which extends parallel to the longitudinal wall 61A (respectively 61B), since the distal end of the hemicircular section wall 67A (respectively 67B) .
- This blade 68A (respectively 68B) has a wall 69A (respectively 69B) which has a thickness slightly less than the internal width of the tray 5OA (respectively 50B).
- the wall 69B comprises two portions 7OB and 71 B.
- the portion 7OB has a triangle-shaped profile, here isosceles, and extends towards the free edge 65B of the wall B.
- the apex 72B of this first triangular portion 70B merges with the distal end of the wall 67B while its base 73B is parallel to the free edge 65B.
- the second portion 71 B which has a half-disk contour, extends from the central zone of the base 73B of the first triangular portion 7OB, in the opposite direction to the vertex 72B of the same triangular portion 7OB.
- the wall 69 A is similar to the wall 69B.
- the establishment of the key 60 on the housing 3 is effected by inserting the shoulder 43 of the conductive broom 40 in the slots such as 64B 'longitudinal walls 61 A, 61 B to the stop position.
- the blade 68A enters the tank 50A (respectively 50B) and plunges into the viscous fluid substance 57A (respectively 57B).
- the inner surface of the plate 63 is close to the head 41 of the conductive broom 40, while the hemi-circular section wall 67A (respectively 67B) is located at the level of the rectangular recess 56A (respectively 56B) of the inner wall 51A
- the blade 68A (respectively 68B) it is almost completely immersed in the tank 5OA (respectively 50B) in contact with the viscous fluid substance 57A (respectively 57B).
- the blade 68A (respectively 68B) moves between and parallel to the two longitudinal walls 12A (respectively 12B) and 51A (respectively 51B) of the 5OA tray (respectively 50B).
- a volume of viscous fluid substance 57A is found sandwiched between this wall and, on one side, the longitudinal wall 12A (respectively 12B) and, on the other side, the longitudinal wall 51A (respectively 51B).
- This fluid friction force is proportional to the wetted surface 76B (respectively 78B) of the blade 68B, the viscosity of the viscous fluid substance 57B and the speed of the blade 68B, and inversely proportional to the distance between the wet surfaces. ⁇ ⁇
- the blades 68A and 68B, and therefore the key 60, the blade 40 and the movable contact 5 have a speed of displacement, under the effect of the spring 48, which remains moderate, so that the switch is particularly comfortable to use.
- the switch V illustrated in Figures 8 and 9 is similar to the switch 1 except that the side elements of the key and the bins are shaped differently.
- the continuation and on the drawings one kept the same references for the identical elements and with a premium for the similar elements.
- the blade 68B ' comprises a portion of rectangular contour 8OB' which extends parallel to the longitudinal wall 61B ', towards its free edge 65B'.
- the blade 68B ' also comprises a curved pad 81B' which takes root at the distal end of the rectangular contour portion 8OB 'and extends transversely thereto in a direction opposite to that of the key 60'.
- the tray 5OB ' has a greater width to accommodate the shoe 81 B' while its bottom wall is curved and is coated with a viscous fluid substance.
- the length of the rectangular profile portion 8OB ' is chosen so that once the assembly is completed, the shoe 81 B' is close to the bottom wall of the tank 5OB 'in contact with the viscous fluid substance.
- the shoe 81 B' describes a rocking movement.
- This volume of viscous fluid substance wets a surface of the inner face of the bottom wall of the tray 5OB 'and a surface of the face of the ⁇ ⁇
- skid 81 B facing surface of the inner face of the bottom wall of the tray 5OB', the gap between these two surfaces remaining substantially constant.
- the blade 68A (respectively 68B) (just like the key 60 to which it is rigidly connected) describes a rectilinear and non-rotating movement.
- the tray such as 5OA or 5OB is linked in motion with the key such as 60, the blade such that 68A or 68B is fixed.
- the trays such as 5OA, 5OB and the blades such as 68A, 68B are larger (respectively smaller) dimensions in order to increase (respectively decrease) the extent of the wet surfaces such as 75B, 76B and therefore the force fluid friction generated;
- the depth of the tanks such as 5OA, 5OB and the length of the blades such as 68A, 68B are increased (respectively decreased) to distance (respectively bring closer) the portions of the blades 68A, 68B in contact with the viscous fluids such as 57A, 57B of the axis of rotation of the key such as 60, and thus increase
- - Viscous fluids such as 57A, 57B have higher dynamic viscosities (respectively lower) which has the effect of an increase (respectively a decrease) of the fluid friction force generated.
- the electrical apparatus is different from a switch for example a remote switch.
Landscapes
- Push-Button Switches (AREA)
- Mechanisms For Operating Contacts (AREA)
- Lubricants (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0759354A FR2924266B1 (fr) | 2007-11-27 | 2007-11-27 | Appareil electrique tel qu'un interrupteur |
| PCT/FR2008/001648 WO2009098397A2 (fr) | 2007-11-27 | 2008-11-27 | Appareil electrique tel qu'un interrupteur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2232516A2 true EP2232516A2 (fr) | 2010-09-29 |
| EP2232516B1 EP2232516B1 (fr) | 2016-09-14 |
Family
ID=39537571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08872037.0A Not-in-force EP2232516B1 (fr) | 2007-11-27 | 2008-11-27 | Appareil électrique tel qu'un interrupteur. |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2232516B1 (fr) |
| CN (1) | CN101971279B (fr) |
| BR (1) | BRPI0819033A2 (fr) |
| ES (1) | ES2606390T3 (fr) |
| FR (1) | FR2924266B1 (fr) |
| MA (1) | MA31908B1 (fr) |
| WO (1) | WO2009098397A2 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592868A (zh) * | 2012-02-24 | 2012-07-18 | 昆山利尔电气实业有限公司 | 一种转轴传动开关制造方法 |
| FR3006102B1 (fr) | 2013-05-24 | 2015-12-04 | Legrand France | Appareillage electrique tel qu'un interrupteur |
| US10851587B2 (en) | 2016-10-19 | 2020-12-01 | Hunter Douglas Inc. | Motor assemblies for architectural coverings |
| US11486198B2 (en) | 2019-04-19 | 2022-11-01 | Hunter Douglas Inc. | Motor assemblies for architectural coverings |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL300650A (fr) * | 1962-11-19 | |||
| CN1057361A (zh) * | 1991-07-25 | 1991-12-25 | 北京邮电学院鸿雁电器厂 | 组合开关的技术措施和组合开关 |
| FR2698719B1 (fr) * | 1992-12-02 | 1995-02-03 | Arnould App Electr | Mécanisme d'interrupteur à organe auxiliaire associé au balai conducteur. |
| DE4326312A1 (de) * | 1993-08-05 | 1995-02-09 | Teves Gmbh Alfred | Kippschalter mit Anschlag zur Geräuschdämpfung |
| JP4319890B2 (ja) * | 2003-10-31 | 2009-08-26 | アルプス電気株式会社 | 複合操作機構 |
-
2007
- 2007-11-27 FR FR0759354A patent/FR2924266B1/fr not_active Expired - Fee Related
-
2008
- 2008-11-27 CN CN200880118076.7A patent/CN101971279B/zh not_active Expired - Fee Related
- 2008-11-27 WO PCT/FR2008/001648 patent/WO2009098397A2/fr not_active Ceased
- 2008-11-27 EP EP08872037.0A patent/EP2232516B1/fr not_active Not-in-force
- 2008-11-27 BR BRPI0819033 patent/BRPI0819033A2/pt not_active IP Right Cessation
- 2008-11-27 ES ES08872037.0T patent/ES2606390T3/es active Active
-
2010
- 2010-06-11 MA MA32904A patent/MA31908B1/fr unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009098397A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2924266A1 (fr) | 2009-05-29 |
| EP2232516B1 (fr) | 2016-09-14 |
| FR2924266B1 (fr) | 2009-12-25 |
| CN101971279B (zh) | 2013-09-04 |
| BRPI0819033A2 (pt) | 2015-05-05 |
| MA31908B1 (fr) | 2010-12-01 |
| WO2009098397A3 (fr) | 2009-10-08 |
| WO2009098397A2 (fr) | 2009-08-13 |
| ES2606390T3 (es) | 2017-03-23 |
| CN101971279A (zh) | 2011-02-09 |
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Inventor name: BELET, TONY Inventor name: GUILLAUME, JEAN-NOEL Inventor name: MANEYROL, EMMANUEL Inventor name: DACCORD, MARCEL Inventor name: HASHOLDER, FLORENT |
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