EP0405196B1 - Schalter mit mehreren Schaltstellungen - Google Patents

Schalter mit mehreren Schaltstellungen Download PDF

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Publication number
EP0405196B1
EP0405196B1 EP90110751A EP90110751A EP0405196B1 EP 0405196 B1 EP0405196 B1 EP 0405196B1 EP 90110751 A EP90110751 A EP 90110751A EP 90110751 A EP90110751 A EP 90110751A EP 0405196 B1 EP0405196 B1 EP 0405196B1
Authority
EP
European Patent Office
Prior art keywords
contact
switch
switch according
plug
housing
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.)
Expired - Lifetime
Application number
EP90110751A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0405196A2 (de
EP0405196A3 (en
Inventor
Siegfried Lübke
Eugen Kubitza
Klaus Panzer
Heinz Oberbeck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP0405196A2 publication Critical patent/EP0405196A2/de
Publication of EP0405196A3 publication Critical patent/EP0405196A3/de
Application granted granted Critical
Publication of EP0405196B1 publication Critical patent/EP0405196B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/12—Bases; Stationary contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions

Definitions

  • the invention relates to a switch with a plurality of switching positions for switching electrical actuating variables, in particular for motor vehicles, with a housing, with a switching part which is mounted in the housing, with a cavity in the switching part which receives a compression spring and a contact part, with a first Contact track, which consists of a predetermined number of individual contact elements, each of which can be connected via the contact part to a second continuous contact track, which are arranged next to the first contact track.
  • a switch with several switch positions for switching electrical manipulated variables is known.
  • This switch has two contact tracks arranged next to one another, the first contact track consisting of a predetermined number of individual contacts.
  • the second contact path is designed as a continuous contact path.
  • the switch also has a switching part with a cavity for receiving a compression spring and a contact part. The contact part is pressed against the contact tracks by the compression spring. In each switching position, the contact part connects an individual contact of the first contact path with the second contact path.
  • the invention has for its object to provide a switch that is simple and inexpensive to manufacture, that delivers a predetermined voltage value in each switching position, that has the smallest possible tolerances, that can be easily adapted to different actuating variables to be switched without having to make design changes is and has the smallest possible dimensions.
  • the object is achieved in that the contact elements of the first contact path are connected to one another via resistors, that the first contact element is connected to a first connector, that the last contact element is connected to a second connector, that the first connector and the second connector are connected to a supply voltage are connected and that the second contact track is connected to a third connector.
  • the contact elements of the first contact path are connected to one another via resistors, that the first contact element is connected to a first connector, that the last contact element is connected to a second connector, that the first connector and the second connector are connected to a supply voltage are connected and that the second contact path is connected to a third connector because a voltage divider arrangement is thus created in a simple and inexpensive manner, which on the one hand makes it possible to manufacture the switch as simply and inexpensively as possible and on the other hand it is as compact as possible construction of the switch enables the switch, when only three plugs are used, to deliver a predetermined voltage value on one of the plugs in each switching position, which corresponds to a predetermined electrical manipulated variable.
  • the switch can be adapted simply and inexpensively to the different actuating variables and control devices to be switched simply by the different configuration of the resistors, since the voltage values applied to the third connector depend solely on the ratio and the absolute values of the resistors .
  • the contact elements of the first contact path and / or the plugs are stamped conductor tracks, because this ensures that the switch can be manufactured as simply and inexpensively as possible and also enables the switch to have the most compact dimensions possible.
  • the contact part securely latches in each switch position of the switch, that reliable contacting takes place in each switch position and that, in addition, the contact part can be easily and safely changed as a result of the contact roller being designed.
  • the last contact element is connected to the second connector via a terminating resistor, because the voltage values applied to the third connector and corresponding to the respective switching positions can thus be adapted in a simple and inexpensive manner.
  • the switching part is designed as a setting wheel mounted in the housing by means of an axis of rotation, which protrudes with part of its circumference through an opening in an end wall of the housing, because the housing can thus have the smallest possible dimensions, so that the switch occupies as little space as possible and also enables safe and simple operation adapted to the function to be switched.
  • the adjusting wheel has a switching arm with the cavity and that the contact tracks are adapted to the switching path of the switching arm, because the switch is as simple as possible and, moreover, reliable and reliable contacting and latching of the contact part in the locking recesses is ensured, which increases safety when using the switch.
  • the housing is constructed from a base part and a cover part and that the base part is releasably connectable to the cover part, there is the advantage of a very simple and inexpensive construction and simple manufacture of the switch, and in addition It is ensured that maintenance and repair work can be carried out in a simple manner in the event of defects in the switch.
  • the base part has receptacles for the contact tracks and openings for the plugs, because in addition to simple and inexpensive manufacture, this ensures that the contact tracks and plugs can be connected securely and securely to the base part, thereby ensuring contact security the contact paths and the plug and thus the safety during operation of the switch is increased.
  • a first stop and a second stop are connected to the base part and that the first stop and the second stop limit the rotary movement of the adjusting wheel in each direction of rotation results in the advantage that the adjusting wheel cannot be moved further over the last switching position , which ensures in a simple manner that, in particular when the switch is used in a motor vehicle, a predetermined end position of the switch is maintained, which increases safety.
  • the housing has fasteners on its outside, because thus a simple and inexpensive attachment of the switch in the opening of a wall, the z. B. the wall of a dashboard of a motor vehicle can be enabled.
  • the housing has a light source and at least one light guide, there is the advantage that symbols on the end wall of the housing and / or the adjusting wheel can be illuminated in a simple and inexpensive manner, thereby ensuring the safety when operating the switch, also at Darkness, is increased.
  • Figure 1 shows a side view of the switch according to the invention in a sectional view.
  • the switch is designed here, for example, as a rotary switch. In another embodiment, the switch can also be designed as a slide switch.
  • the housing (G) consists here, for example, of a cover part (DT) and a base part (GT) in order to ensure simple and inexpensive manufacture.
  • the cover part (DT) can be detachably connected to the base part (GT) via a locking connection, not shown here.
  • the housing (G) can have fastening elements (E1, E2) on its outside, which are designed here as latching elements and consist of metal.
  • the fastening elements (E1, E2) can also be connected to the base part (GT).
  • the switching part of the switch is designed here as an adjusting wheel (SR) mounted in the housing (G) by means of an axis of rotation (D).
  • the setting wheel (SR) is here, for example, approximately semi-wheel-shaped and projects with part of its circumference through an opening ( ⁇ ) in an end wall (ST) of the housing (G).
  • the switching part On the side of the adjusting wheel (SR) facing away from the opening ( ⁇ ), the switching part has a switching arm (SA).
  • the switching arm (SA) has a cavity (H) which receives a compression spring (F) and a contact part which is designed as a contact roller (T).
  • the first contact path (B1) is also shown.
  • the first contact path here consists, for example, of four individual contact elements (K1, K2, K3, KN), which are firmly connected to the base part. In another embodiment, the number of contact elements (K1, K2, ... KN) can be larger or smaller depending on the specified requirements.
  • the first contact element (K1) is electrically conductively connected to a first plug (S1).
  • the last contact element (KN) is electrically conductively connected to a second connector (S2). It is not shown in FIG. 1 that the individual contact elements (K1, K2, ... KN) are connected to one another via resistors (W1, W2, ).
  • the first contact element (K1) is connected here by way of example to the first plug (S1) via a first connecting element (V1). In another exemplary embodiment, the first contact element (K1) and the first plug (S1) can also be formed in one piece.
  • the last contact element (KN) is connected here to the second connector (S2) by way of example via a terminating resistor (WA), not shown, and a second connecting element (V2). In another exemplary embodiment, the last contact element (KN) and the second connector (S2) can also be formed in one piece, the last contact element (KN) can also be connected directly to the second connector (S2) via the terminating resistor (WA).
  • the switch can be connected to a predetermined supply voltage via the second connector (S2) and the first connector (S1).
  • the contact elements (K1, K2, ... KN) and / or the plugs (S1, S2) can be conductor tracks punched from a lead frame in order to enable simple and inexpensive production.
  • the first contact path (B1) is designed such that it is adapted to the switching path of the switching arm (SA) of the setting wheel (SR).
  • Each contact element (K1, K2, ..., KN) has a locking recess (R1, R2, ... RN) so that the contact roller (T) of the switching part can lock securely.
  • the base part (GT) has a first stop (A1) and a second stop (A2), which limit the rotary movement of the adjusting wheel (SR) in each direction of rotation.
  • Figure 2 shows a plan view of the base part (GT) of the housing (G).
  • the first contact path (B1) has a predetermined number of individual contact elements (K1, K2, ..., KN) which are firmly connected to the base part (GT).
  • the first contact element (K1) is connected here by way of example to the first plug (S1) via a first connecting element (V1).
  • the first contact element (K1) is connected to the second contact element (K2) via a first resistor (W1).
  • the second contact element (K2) is electrically conductively connected to the third contact element (K3) via a second resistor (W2).
  • the third contact element (K3) is electrically conductive via a third resistor (W3) connected to the last contact element (KN).
  • the last contact element is connected here to the second connector (S2) by way of example via a terminating resistor (WA) and a second connecting element (V2).
  • Each of the contact elements (K1, K2, ..., KN) consists here, for example, of a part standing vertically on the base part (GT) and a part lying horizontally on the base part (GT), which are formed in one piece and conductor tracks stamped from a lead frame are.
  • the first contact element (K1) can also be connected in one piece to the first plug (S1).
  • the last contact element (K1) can also be connected in one piece to the second connector (S2).
  • the last contact element (KN) can also be connected directly to the second connector (S2) via the terminating resistor (WA).
  • a second contact path (B2) is arranged here.
  • the second contact path (B2) is here, for example, perpendicular to the base part (GT) and is firmly connected to it.
  • This second contact path (B2) is continuous and is preferably connected in one piece to a third connector (S3).
  • each contact element (K1, K2, ..., KN) has a locking recess (R1, R2, ..., RN).
  • the second contact track (B2) also has latching recesses (R1, R2, ..., RN) which lie directly opposite the latching recesses (R1, R2, ..., RN) of the first contact track (B1), so that the contact roller (T) in each switching position both firmly engages with the first contact path (B1) and with the second contact path (B2).
  • the second contact track (B2) can be punched from the same lead frame as the contact elements (K1, K2, ... KN) of the first contact track (B1) in order to ensure that the switch can be produced simply and inexpensively.
  • the base part (GT) here has, for example, two extensions that are perpendicular to the base part (GT) and are integral with this base part (GT) each have a bearing (L1, L2) for the axis of rotation (D) of the adjusting wheel (SR), which are designated in FIG. 3.
  • the base part (GT) also has a first stop (A1) and a second stop (A2), each of which stands upright on the base part (GT) and here, for example, in one piece with this base part (GT ) are connected.
  • Figure 3 shows a further view of the switch according to the invention in a sectional view, which is rotated by 90 ° to the illustration shown in Figure 1.
  • the housing (G) of the switch consists of a cover part (DT) and a base part (GT).
  • the axis of rotation (D) of the adjusting wheel (SR) is mounted between the base part (GT) and the cover part (DT) on bearing points (L1, L2).
  • the setting wheel (SR) partially protrudes through an opening ( ⁇ ) in an end wall (ST) of the cover part (DT).
  • the switching arm (SA) is still recognizable, which has a cavity (H) for the compression spring (F) and the contact roller (T).
  • the cavity (H) is adapted to the shape of the compression spring (F) and the shape of the contact roller (T) and their dimensions and functions.
  • the contact roller (T) has a width which corresponds approximately to the distance between the contact tracks (B1, B2), so that it can connect them in any switching position.
  • the contact roller (T) has a radius which ensures that when the switching arm (SA) moves from one switching position to the other, the contact roller (T) is in contact with at least one of the contact elements (K1, K2, .. ., KN) of the first contact path (B1), which prevents malfunctions when switching from one switching position to another.
  • the contact tracks (B1, B2) consist of stamped conductor tracks which are firmly connected to the base part (GT) of the housing (G).
  • the contact elements (K1, K2, ..., KN) of the first contact path point in order to be able to connect the resistors (W1, W2, ..., WN) both a part standing upright on the base part (GT) and a part running horizontally to the base part (GT), the latter parts having openings for contacting the connecting wires of the resistors (W1, W2, ...) and the terminating resistor (WA).
  • FIG. 1 the contact tracks (B1, B2) consist of stamped conductor tracks which are firmly connected to the base part (GT) of the housing (G).
  • the contact elements (K1, K2, ..., KN) of the first contact path point in order to be able to connect the resistors (W1, W2, ..., WN) both a part standing upright on the base part (GT) and a part running horizontally to the base part (GT), the latter parts having openings for
  • the base part (GT) of the housing (G) has receptacles in which the parts of the contact tracks (B1, B2) which stand perpendicularly on the base part engage and in which these are clamped in order to ensure a firm fit To ensure contact paths (B1, B2).
  • the base part (GT) has openings through which the plugs (S1, S2, S3) project from the inside of the housing (G) to the outside of the housing (G), that is to say the base part (GT). In the sectional view shown in FIG. 3, this can only be seen for the first connector (S1).
  • the plugs (S1, S2, S3) are designed here as examples in all figures as flat plugs. In other exemplary embodiments, the plugs (S1, S2, S3) can also have other shapes. In particular, the plugs (S1, S2, S3) can be designed as circular plugs.
  • the housing (G) can be made of plastic.
  • the housing (G) can have a light source in its interior, which, for. B. illuminate parts of the housing wall and / or the adjusting wheel, which are provided with function symbols, via light guides. It may be necessary for the base part (GT) to have at least one further plug and a lamp socket.
  • the switch can have a wide variety of designs in accordance with the drawings shown or alternatively, and in particular can be designed as a rotary switch or a slide switch. In all of these switch designs, it has proven to be advantageous if the first connector (S1) is connected to a positive supply voltage and if the second connector (S2) is connected to a negative supply voltage.
  • a voltage value corresponding to the switching position of the switching part can be tapped via the third connector (S3).
  • the first connector (S1) can also be connected to the negative supply voltage and the second connector (S2) can be connected to the positive supply voltage.
  • the switch By actuating the switching part, which is designed here, for example, as a setting wheel (SR), the switch can be switched into several switching positions.
  • the contact part By forming the contact part as a contact roller (T)
  • the adjusting wheel (SR) can be moved easily and, on the other hand, it ensures that the contact roller (T) connects the first contact path (B1) with the second contact path (B2) safely and reliably. So that the setting wheel (SR) locks securely in any switching position, the contact elements (K1, K2, ..., KN) of the first contact path (B1) and the second contact path (B2) have opposing recesses (R1, R2, ... , RN), which are adapted to the radius of the contact roller (T).
  • Each contact element (K1, K2, ..., KN) of the first contact track has a detent recess (R1, R2, ..., RN).
  • R1, R2, ..., RN detent recess
  • one of the contact elements (K1, K2, ..., KN) of the first contact path (B1) is electrically conductively connected to the second contact path (B2) via the contact roller (T).
  • the contact elements (K1, K2, ..., KN) are connected to one another via resistors (W1, W2, ...) and the first contact element (K1) with a first plug (S1) and the last contact element (KN ) is connected to a second connector (S2), the first connector (S1) and the second connector (S2) being connectable to a supply voltage, can be connected to the third connector (S3) which is connected to the second contact path (B2),
  • a voltage value can be tapped which corresponds to the respective switching position of the switching part and is determined by the absolute resistance values and the ratio of the resistance values of the resistors (W1, W2, ...) and possibly the terminating resistor (WA).
  • a simple and inexpensive change in the configuration of the switch according to the invention with different resistances from switch variant to switch variant and by applying different supply voltage results in a high adaptability of the switch to different requirements which, for. B. be specified by control devices or regulating devices without constructive changes, which can be complex and expensive, would have to be made to the switch.
  • resistors W1, W2, ...) and terminating resistors (WA), the resistance values of which have tolerances that are adapted to the given requirements.
  • the switch shown in the figures described above there is a particularly compact structure, which is due to its small dimensions, for. B. suitable for installation in a dashboard of a motor vehicle. If the switch z. B. used as a switch for headlight range control in a motor vehicle and the switch is installed such that the actuating direction of the adjusting wheel (SR) is adapted to the direction of movement of the headlights to be controlled, actuation errors are kept as low as possible.
  • the individual switching positions can each have an equal distance from one another due to the spacing of the latching recesses (R1, R2, ..., RN) and in their end position each by the stops (A1, A2) be limited. However, they can also have different distances and can thus be adapted to the course of the function of the electrical actuating variables to be switched.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP90110751A 1989-06-24 1990-06-07 Schalter mit mehreren Schaltstellungen Expired - Lifetime EP0405196B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3920758 1989-06-24
DE3920758A DE3920758A1 (de) 1989-06-24 1989-06-24 Schalter mit mehreren schaltstellungen

Publications (3)

Publication Number Publication Date
EP0405196A2 EP0405196A2 (de) 1991-01-02
EP0405196A3 EP0405196A3 (en) 1992-03-04
EP0405196B1 true EP0405196B1 (de) 1993-09-29

Family

ID=6383507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110751A Expired - Lifetime EP0405196B1 (de) 1989-06-24 1990-06-07 Schalter mit mehreren Schaltstellungen

Country Status (3)

Country Link
EP (1) EP0405196B1 (enrdf_load_stackoverflow)
DE (2) DE3920758A1 (enrdf_load_stackoverflow)
ES (1) ES2044320T3 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4205906C2 (de) * 1992-02-26 1994-05-26 Trw Messmer Drehschalter
DE4436324B4 (de) * 1994-10-11 2006-02-16 Robert Seuffer Gmbh & Co. Kg Vorrichtung zum Verstellen eines Schaltrades
DE19546504C2 (de) * 1995-12-13 1999-05-12 Mayser Gmbh & Co Schaltanordnung mit wenigstens zwei flachliegenden, elektrischen Leitsteifen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH333690A (fr) * 1957-02-15 1958-10-31 Vogel & Cie P Rhéostat
DE1913693U (de) * 1964-07-23 1965-04-15 Siemens Ag Schalter mit kontaktbruecke und nebeneinander angeordneten kontaktbahnen.
DE1225745B (de) * 1965-07-13 1966-09-29 Rau Swf Autozubehoer Rollkontaktteilanordnung
US3271536A (en) * 1965-11-08 1966-09-06 Indak Mfg Corp Electrical switch with contact grounding strap
US4363934A (en) * 1980-06-02 1982-12-14 Scholz Donald T Volume control device
JPS61121213A (ja) * 1984-11-17 1986-06-09 アルプス電気株式会社 スイツチ装置の製造方法

Also Published As

Publication number Publication date
EP0405196A2 (de) 1991-01-02
DE3920758C2 (enrdf_load_stackoverflow) 1993-03-18
ES2044320T3 (es) 1994-01-01
DE3920758A1 (de) 1991-01-10
EP0405196A3 (en) 1992-03-04
DE59002883D1 (de) 1993-11-04

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