EP1121695A1 - Sprungschalter - Google Patents
SprungschalterInfo
- Publication number
- EP1121695A1 EP1121695A1 EP99953829A EP99953829A EP1121695A1 EP 1121695 A1 EP1121695 A1 EP 1121695A1 EP 99953829 A EP99953829 A EP 99953829A EP 99953829 A EP99953829 A EP 99953829A EP 1121695 A1 EP1121695 A1 EP 1121695A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- contact element
- switch according
- snap switch
- contact
- 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
- 230000009191 jumping Effects 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 description 8
- 230000004044 response Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
Definitions
- the invention relates to a snap switch comprising two fixed contacts arranged at a distance from one another, a contact element which can be moved between a closed position in which the contact element connects the fixed contacts in an electrically conductive manner and an open position in which the contact element is at a distance from at least one of the fixed contacts.
- an actuating element for moving the contact element between the closed position and the open position and a spring for achieving an abrupt transition of the contact element between the closed position and the open position.
- Such snap switches are known from the prior art. For example, such snap switches are described in German Patent 27 52 638 or German Patent 44 39 291 or DE-U-86 29 443.1.
- the invention is therefore based on the object of improving a snap switch of the generic type in such a way that it is as small and as simple as possible.
- This object is achieved according to the invention in a snap switch of the type described at the outset in that the coil spring comprises a curved spring plate which can be jumped from a first curved position into a second curved position and vice versa.
- the advantage of the solution according to the invention can be seen in the fact that the spring plate provides a spring which is very small in space and can be easily integrated into a switch.
- a particularly favorable embodiment of the snap switch according to the invention provides that the spring plate comprises a central curved area and an outer area which is divided into individual foot sections.
- the first and the second curvature position can be determined in a particularly simple and advantageous manner by the arrangement and shape of the foot sections.
- the foot sections in the outer region are formed by recesses lying between them and deviating from a circular line, so that the foot sections themselves still have a circular outer contour, which is however canceled out by the recesses between the foot sections.
- curvature deformations of the spring plate can be achieved if the spring plate has foot sections arranged at equal angular intervals.
- the solution according to the invention can be used advantageously in particular for a snap switch as an opener if the spring with a bulge position has the closing force applies for the closed position and thus no separate spring is required for the generation of the closing force acting on the contact element in the closed position.
- a particularly advantageous solution provides that the spring is outside of a current flow which forms in the closed position between the fixed contacts, that is to say that the contact element itself only conducts the current between the fixed contacts and thus has no regard for the formation and arrangement of the spring electrical properties of the same must be taken.
- the contact element can thus be arranged at any point, as long as the movement of the spring between the bulge positions is transmitted to the contact element, for example by an intermediate transmission part.
- the contact element is in direct mechanical contact with the spring so that no additional masses the spring response affect, but the spring response of the spring acts directly on the contact element.
- a solution has proven to be particularly favorable in which the contact element is in mechanical contact with the spring essentially only at one point in order not to adversely affect the properties of the spring due to the interaction with the contact element.
- connection of the spring and the contact element to a unit could, for example, take place in such a way that the contact element sits rigidly on the spring or is connected to it, the contact element and the spring preferably still being two separate but interconnected parts.
- a particularly favorable solution provides that the spring and the contact element are movably connected to one another, since in this case by the relative Mobility of the contact element relative to the spring, in particular in the closed position, the spring does not have to be installed so precisely that its curvature position also specifies an exact alignment of the contact element and thus a secure contact thereof with the fixed contacts, but rather the relative mobility of the contact element with respect to the spring it allows the contact element to align itself in such a way that it rests securely on the two fixed contacts and this alignment is independent of the curvature of the spring.
- a particularly favorable solution provides that the spring and the contact element can be tilted relative to one another by a family of tilting axes which essentially represent tangents to the arched spring plate through a point of contact between the contact element and the spring.
- the elastic energy accumulator can be designed in a wide variety of ways. This can be an elastic body or any type of spring, such as a cylindrical or conical spiral shape or a leaf spring.
- the elastic energy store acts directly on the spring.
- the elastic energy accumulator acts on a plunger that actuates the spring.
- the plunger can in principle be freely arranged as long as it is able to act in a defined manner on the spring. However, it is even more advantageous if the plunger and the actuating element perform movements defined relative to one another due to a guide.
- the guide can be designed in a wide variety of ways. For example, it would be conceivable to design the movements of the plunger and the actuating element relative to one another as swiveling or tilting movements and to provide the swiveling axes as guides. However, it is particularly favorable if the actuating element and the plunger are guided relative to one another by means of a linear guide. Such a linear guidance of the plunger and the actuating element relative to one another can take place via a housing of the snap switch. However, it is particularly favorable if the linear guide acts directly between the actuating element and the tappet.
- the actuating element protruding from a housing of the same is led out of the housing in a sealed manner. It is particularly expedient if a lip seal is provided for sealing between the actuating element and the housing, the lip seal preferably being arranged on the actuating element, expediently being integrally formed thereon.
- Figure 1 shows a longitudinal section through a first embodiment of a snap switch according to the invention, designed as an opener.
- FIG. 2 shows a section along line 2-2 in FIG. 3 through a spring and a contact element of the snap switch;
- Fig. 3 is a plan view of the unit of contact element and spring in the direction of arrow A in Fig. 2 and
- Fig. 4 is a section similar to Fig. 1 through a second embodiment of a snap switch designed as a closer.
- a first exemplary embodiment of a snap switch according to the invention shown in FIG. 1, comprises a housing 10 with a lower housing part 12, which is formed from a housing base 14 and a housing cup 16 molded onto it.
- the housing 10 comprises an upper housing part 18, which is formed from a cylindrical housing shell 20, which engages around the housing cup 16 with a lower section 22 and is seated on an upper edge 24 of the housing cup 16 with a collar 26. Then extends over the collar 26 of the housing jacket 20 of the upper housing part 18 with a cylindrical region 28, to which a guide sleeve 30 adjoins on a side opposite the lower housing part 12, in which an actuating element 32 of the snap switch is guided displaceably.
- the guide sleeve 30 comprises a guide channel 34, in which the actuating element 32 is displaceably guided with a guide section 36 parallel to a longitudinal axis 38 of the housing 10.
- the actuating element 22 projects with a projection 40 over the guide sleeve 30, so that actuation of the snap switch is possible via the projection 40.
- the actuating element 32 extends beyond the guide section 36 into an interior 42 of the housing shell 20 and forms a support plate 44 for an elastic energy accumulator 46 in the form of a spring, which rests on a side of the support plate 44 facing away from the guide channel 34.
- the support plate 44 forms a stop against a displacement of the actuating element 32 in the direction away from the lower housing part 12 in that a side 50 of the support plate 44 opposite the side 48 can be placed against an inner surface 52 of the upper housing part 18 at the transition from the housing jacket 20 to the guide sleeve 30.
- the actuating element 32 further comprises a cylindrical section 60 which extends the support plate 44 and which has an inner recess 62 which extends from the cylindrical section 60 into the guide section 36 and in sections forms a cylindrical jacket surface 64 which serves as a guide surface for a head 68 slidable along this serves a plunger designated as a whole by 70.
- the head 68 of the plunger 70 is displaceable along the cylindrical surface 64 of the recess 62 and bears against it with an outer surface 72.
- a plunger body 74 extends out of the recess 62 through an opening 76 provided in the cylindrical section 60 and facing the lower part 12, which has a plunger surface 80 on its side facing away from the head 68.
- the plunger 70 also carries a pressure plate 82, on the side 84 facing away from the lower part 12, the spring 46 rests, which thus extends between the pressure plate 82 of the plunger 70 and the support plate 44 of the actuating element 32.
- the spring 46 preferably does not have any turns 86 lying in a cylindrical surface, but rather the turns lie in a conical surface 88, so that the spring characteristic is as linear as possible.
- the plunger surface 80 of the plunger 70 acts on a contact element 90 which, in a closed position, represents a contact bridge between two fixed contacts 92 and 94.
- the fixed contacts 92 and 94 are arranged on angled brackets 96, 98, which hold the two fixed contacts 92 and 94 at a distance from one another and preferably mirror-symmetrically to the longitudinal axis 38 on a side of the contact element 90 facing away from the housing base 14.
- the brackets 96 and 98 are integrally formed on contact pins 100, 102 which penetrate the housing base 14 and have connection sections 104 and 106 outside the housing base 14.
- the contact element 90 is also held in its closed position by a spring 110, which is supported on the one hand on the housing base 14, is convexly curved away from it and carries the contact element 90 on its side facing away from the housing base 14.
- the spring 110 has a spring plate 112, which comprises a central curved region 114, on which foot sections 116a to d are integrally formed, which are arranged at equal angular distances w from one another and thus symmetrically a center 118 of the spring plate 112 extend in different directions.
- the foot sections 116a to d are preferably formed by starting from a full circle outer contour 120 between the foot sections 116a to d to be formed with recesses with an inner contour 122, which form a lancet shape with the corresponding section of the full circle contour 120.
- the foot sections 116 initially adjoin the curvature of the curved area 114 and then run with areas 124 from curvature reinforced in the direction of the curvature to foot surfaces 126 which lie in a plane 128 which is at a distance from the center 118 of the Spring plates 112 runs.
- the spring plate 112 is connected to the contact element 90 to form a unit in that the contact element 90, with a rivet 130 integrally formed thereon, penetrates an opening 132 running around the center 118 of the spring plate 112 and on a side of the spring plate opposite the contact element 90 112 forms a rivet head 134, which has a greater radial extent with respect to the center 118 than the opening 132, so that the contact element 90 is captively connected to the spring plate 112.
- the rivet head 134 is shaped in such a way that the contact element 90 can be tilted relative to the spring plate 112 by a family of straight lines 136 running through the center 118 and as tangents to the curved region 114.
- the contact element 90 is preferably designed as a plate, which has a circular outer contour 138 with respect to the center 118, which has an outer boundary for represents an annular surface 140 which extends to the outer contour 138 and which serves to establish electrical contact with the fixed contacts 92 and 94.
- the contact element 90 is provided with a recess 142 opposite the annular surface 140, which serves on the one hand to form the rivet 130, and on the other hand is a receptacle for the plunger surface 80 of the plunger 70, so that it is centered on the contact element 90 through the Recess 142 is guided coaxially to the longitudinal axis 38.
- the contact element 90 Due to the tiltability of the contact element 90 relative to the spring plate around the family of straight lines 136 running through the center 118 and as tangents to the curved area 114, the possibility is created that in the curved position of the spring plate 112 of the spring 110 the contact element 90 with the Alignment of the circular ring surface 140 can adapt to the position of the fixed contacts 92 and 94 and can therefore be placed on them with good electrical contact.
- the contact force is generated by the spring 110, which rests with the foot sections 116 on a support surface 144 of the housing base 14.
- the spring plate 112 is preferably arranged such that its center lies approximately in such a way that it is cut through the longitudinal axis 38 of the housing 10.
- the contact element 90 jumps from the closed position into an open position in which it is held at a distance from the fixed contacts 92 and 94 as long as the spring 46 applies the necessary holding force, which, however can be less than the trigger force. That is, as long as the actuating element 32 is still actuated.
- the arched region 114 also jumps back from the deformed position into the starting position and in turn contacts the contact element 90 with its circular ring surface 140 on the fixed contacts 92 and 94.
- the first embodiment of the snap switch according to the invention is designed as a closer.
- the latter is provided with a sealing lip 150 which is integrally formed on the guide section 36 and which bears against the guide channel 34 radially to the longitudinal axis 38 to the outside with prestress and thus for an effective sealing of the interior 42 of the housing 10 in the region the guide sleeve 30 leads.
- an opener is shown, that is to say a snap switch which is open in the unactuated state.
- the brackets 96 'and 98' are designed such that the fixed contacts 92 'and 94' lie on a side of the spring 110 and the contact element 90 facing the housing base 14.
- the contact element 90 is arranged on the side of the spring plate 112 facing the housing base 14. The connection between the spring plate 112 and the contact element 90 likewise takes place via a rivet 130, the rivet head of which now forms the recess 142 'for receiving the tappet surface 80 and for centering the same.
- the spring 46 is also initially tensioned until the release force of the spring plate 112 is reached and this suddenly changes from the initial position into the deformed position in FIG which an application of the contact element 90 with its circular contact surface 140 to the fixed contacts 92 ', 94' takes place, the contact surface 140 of the contact element 90 on the fixed contacts 92 'and 94' with the necessary force also being applied due to the action of the plunger 70 is held so that the electrical connection between the contact pins 100 and 102, which are in electrically conductive connection with the fixed contacts 92 'and 94', is closed.
- Stopping the actuation of the actuating element then leads to a reduction in the force of the spring 46 and thus, if the force falls below the force required to maintain the deformed position, causes the spring spring 110 to spring back into the starting position, in which the electrical connection between the fixed contacts 92 'and 94 'is solved.
- the second embodiment is designed in the same way as the first embodiment, so that the same parts are provided with the same reference numerals and with regard to the description thereof, reference is made in full to the explanations for the first embodiment.
Landscapes
- Push-Button Switches (AREA)
- Switches With Compound Operations (AREA)
- Electrophonic Musical Instruments (AREA)
- Keying Circuit Devices (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19847614 | 1998-10-15 | ||
| DE19847614A DE19847614A1 (de) | 1998-10-15 | 1998-10-15 | Sprungschalter |
| PCT/EP1999/007752 WO2000022639A1 (de) | 1998-10-15 | 1999-10-14 | Sprungschalter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1121695A1 true EP1121695A1 (de) | 2001-08-08 |
| EP1121695B1 EP1121695B1 (de) | 2003-09-03 |
Family
ID=7884605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99953829A Expired - Lifetime EP1121695B1 (de) | 1998-10-15 | 1999-10-14 | Sprungschalter |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1121695B1 (de) |
| AT (1) | ATE249091T1 (de) |
| DE (2) | DE19847614A1 (de) |
| WO (1) | WO2000022639A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005032447B4 (de) * | 2005-07-12 | 2014-10-23 | Leopold Kostal Gmbh & Co. Kg | Elektrische Schalteinrichtung |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH676765A5 (de) * | 1988-06-14 | 1991-02-28 | Elma Electronic Ag | |
| DE3917659A1 (de) * | 1989-05-31 | 1990-12-06 | Merit Werk Merten & Co Kg | Schalter, insbesondere rueckfahrlichtschalter, getriebeschalter, temperaturschalter fuer kraftfahrzeuge, endschalter oder dergleichen |
| DE4139554A1 (de) * | 1991-10-14 | 1993-04-15 | Fela Mikrotechnik Ag | Elektrischer tastschalter |
| US5233142A (en) * | 1992-04-30 | 1993-08-03 | Itt Corporation | Snap action electrical switching mechanism with dual set points |
| DE9313776U1 (de) * | 1993-09-11 | 1995-02-02 | MERIT GmbH, 51643 Gummersbach | Schalter für Kraftfahrzeuge, insbesondere Rückfahrlicht- und Getriebeschalter o. dgl. |
| DE9404154U1 (de) * | 1994-03-11 | 1994-04-28 | Siemens AG, 80333 München | Drucktaster |
-
1998
- 1998-10-15 DE DE19847614A patent/DE19847614A1/de not_active Ceased
-
1999
- 1999-10-14 EP EP99953829A patent/EP1121695B1/de not_active Expired - Lifetime
- 1999-10-14 WO PCT/EP1999/007752 patent/WO2000022639A1/de not_active Ceased
- 1999-10-14 AT AT99953829T patent/ATE249091T1/de not_active IP Right Cessation
- 1999-10-14 DE DE59906897T patent/DE59906897D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0022639A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59906897D1 (de) | 2003-10-09 |
| WO2000022639A1 (de) | 2000-04-20 |
| EP1121695B1 (de) | 2003-09-03 |
| ATE249091T1 (de) | 2003-09-15 |
| DE19847614A1 (de) | 2000-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3122899A1 (de) | Temperaturschalter | |
| EP0618603B1 (de) | Mikroschalter | |
| DE3642677C2 (de) | Elektrischer Schalter | |
| WO2003007322A1 (de) | Schaltgerät mit einem schaltschloss | |
| EP0173756B1 (de) | Kontaktvorrichtung | |
| DE102007013572B4 (de) | Kontaktsystem mit einer Schaltbrücke | |
| EP4053869B1 (de) | Schalter, insbesondere schnappschalter | |
| DE3150210C2 (de) | Elektrischer Schnappschalter | |
| EP1121695A1 (de) | Sprungschalter | |
| CH671648A5 (en) | Electric contact device for keyboard switch - uses double armed contact element between pushbutton operating element and fixed counter contact pin | |
| DE2360167A1 (de) | Schalter | |
| EP1764813A1 (de) | Elektrischer Schalter | |
| EP0398461A2 (de) | Leistungsschalter mit einer Antriebsvorrichtung und einer Verklinkungseinrichtung für einen bewegbaren Schaltkontakt | |
| EP0708464A2 (de) | Elektrischer Schalter | |
| EP2148344B1 (de) | Mikroschalter | |
| EP1630837B1 (de) | Kontaktsystem | |
| DE2511422C3 (de) | Elektrischer Installationsschalter | |
| DE3338244C2 (de) | ||
| EP0173193B1 (de) | Elektrischer Schalter | |
| DE3438844C2 (de) | ||
| EP0599234B1 (de) | Elektrisches Schaltgerät | |
| DE3442349C2 (de) | ||
| DE3002122A1 (de) | Flammhemmende polycarbonat-zusammensetzungen | |
| DE4235981A1 (de) | Elektrischer Schalter | |
| DE9319762U1 (de) | Schalter, insbesondere Druck-, Schiebe- oder Stößelschalter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20010320 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| 17Q | First examination report despatched |
Effective date: 20020514 |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE ES FR GB IT |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030903 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REF | Corresponds to: |
Ref document number: 59906897 Country of ref document: DE Date of ref document: 20031009 Kind code of ref document: P |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031014 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031214 |
|
| GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20030903 |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20040604 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59906897 Country of ref document: DE Representative=s name: HOEGER, STELLRECHT & PARTNER PATENTANWAELTE MB, DE |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 18 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 19 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20170918 Year of fee payment: 19 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20171129 Year of fee payment: 19 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20171024 Year of fee payment: 19 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59906897 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190501 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181014 |