CN1134804C

CN1134804C - Electric switch

Info

Publication number: CN1134804C
Application number: CNB981260713A
Authority: CN
Inventors: 迈克尔・巴赫; 黄彬; ・西贝科; 塞德勒-斯塔尔; 夫・施米特; 蒂德; ・图尔克曼
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-22
Filing date: 1998-12-22
Publication date: 2004-01-14
Anticipated expiration: 2018-12-22
Also published as: CN1258085A

Abstract

The present invention relates to an electrical switch 100. The present invention comprises a housing which is composed of a first housing component and a second housing component 20, 30 and is provided with an axial line, a plurality of fixed switch contact sheets 50, 60 which are positioned on the inner surface 34 of the second housing component 30 and surrounds the axial line roughly, a switch axle 40 of which the support can do angular movements around the axial line and a movable switch contact sheet 70 rotated by the switch axle 40. The movable switch contact sheet 70 is used for bridging the fixed switch contact sheet 50 to cause the fixed switch contact sheet 50 to be communicated with the fixed switch contact sheet 60, peripheral walls 26 and 36 which form mutually connected grooves 28 and fins 38 are arranged on the housing components 20, 30 respectively, and the peripheral wall 26 fastens the two housing components 20, 30 together around the other peripheral wall 36.

Description

Electric switch

Technical field

The present invention is about a kind of electric switch, more specifically but be not uniquely about a kind of rotary selector switch.

Background technology

The known electric switch that same kind is arranged, for example Chinese patent application No.93108513.6 disclosed (publication number CN1097897A).The switch of this prior art comprises: a housing that has an axis and formed by first and second housing parts, a plurality of floatless switch contacts that are positioned at the inner surface of second housing parts and center on this axis substantially, one is supported for the switch element that can do angular movement around this axis, with a movable switch contact that can rotate by switch element, be used for one of the bridge joint fixed touch plate with another conducting.These two housing parts are fixed together by rivet, yet this is not only a manufacturing step of wasting time and energy, and easily product is damaged.

Summary of the invention

The object of the invention is to provide a kind of improved electric switch, to eliminate or to weaken this problem.

According to the present invention, a kind of electric switch is provided, it comprises: a housing that has an axis and formed by first and second housing parts, on a plurality of inner surfaces that are positioned at second housing parts and substantially around the floatless switch contact of this axis, one is supported for the switch element that can do angular movement around this axis, with a movable switch contact that can rotate by switch element, be used for one and another conducting of bridge joint floatless switch contact, wherein, housing parts has the perisporium that is formed with the device that is bonded with each other respectively, this coupling device is substantially around corresponding perisporium, wherein a perisporium snaps together the two housings parts around another perisporium, it is characterized in that second housing parts is formed with at least one bar seam between inner surface and perisporium, be used for locating a corresponding fixed touch plate by it.

More preferably, described fixed touch plate has a flexible side tongue piece, is used for after tongue piece points in the engaging certainly of bar seam back, thereby puts in place from locking fixed touch plate by the bar seam.

Preferably, second housing parts is formed with a depression and aligns in order to locate described contact by bringing in the fixed touch plate with the bar seam on inner surface.

Preferably, the device that is bonded with each other is elongated and extends along the mating surface between the perisporium.

More preferably, the device that is bonded with each other is respectively the form of rib and groove.

Preferably, the perisporium of housing parts is the general cylindrical shape.

In a concrete structure, some fixed touch plate become a series of settings, and are formed with the slit between each the phase adjacency pair in a series of contacts on inner surface.

More specifically, a series of contacts first in the middle of form a pair of described slit on the opposite flank of contact.

Preferably, Yu Xia fixed touch plate is that a public fixed touch plate is used for electrically connecting by described movable contact flat and other fixed touch plate any.

More preferably, public contact has two ends and is squeezed between the two housings parts by its end and is held in place.

An advantage is that in the respective recesses that fixed touch plate is positioned to form on inner surface, thereby the contact surface of contact and remaining inner surface are positioned at a surface substantially.

The present invention more specifically describes by embodiment with reference to the accompanying drawings, wherein:

Description of drawings

Fig. 1 is the top view according to an embodiment of electric switch of the present invention;

Fig. 2 is the bottom view of the switch of Fig. 1;

Fig. 3 is the decomposition view of the switch of Fig. 1;

Fig. 4 is the bottom view of upper member of the switch of Fig. 3;

Fig. 5 is the top view of lower member of the switch of Fig. 3;

Fig. 6 is the cross-sectional end view of the switch of Fig. 1.

Embodiment

With reference to accompanying drawing, shown is to realize an electricity of the present invention (selector) switch 100, this switch 100 has one by base 20 and lid 30 housings that form 10, and lid 30 is closed base 20 coaxially, and this switch also have one can be around the axle of housing 10 center switch axle 40 around rotation.Base 20 has the diapire 22 and a short cylindrical periphery wall 26 of a circle, and diapire 22 comprises a flat inner surface 24, and perisporium 26 is continuous and is formed with a cannelure 28 on the surface within it.Lid 30 has the roof 32 and a short cylindrical periphery wall 36 of a circle, and roof 32 comprises a flat inner surface 34, and perisporium 36 is at two crack mouth G ₁And G ₂The place is the rib 38 that disconnects and be formed with an annular on its outer surface.Base 20 firmly fixes with the fastening effect by cooperatively interacting of groove 28 and rib 38 with lid 30 is in the same place, and the perisporium 26 of base extends along mating surface around the perisporium 36 of lid and groove 28 and rib 38.

Electric switch 100 has a series of totally five straight fixed touch plate 50 and single arc fixed touch plate 60 of radially extending, and all these contacts are all located against the inner surface 34 of lid 30.Fixed touch plate 50 is located with 30 ° angle intervals in a side of inner surface 34, and each contact is by a corresponding close-fitting seam 37, and bar seam 37 is formed between inner surface 34 and the perisporium 36.The outside of perisporium 36 is stayed in one outer contact end 52, and inwardly stretch contact end 54 in one.Between

opposite end

52 and 54, each fixed touch plate 50 comprises a flexible side tongue piece 56, and this tongue piece refers to stitch 37 back to be fastened on corresponding bar certainly backward, thereby by bar seam 37 contact 50 is put in place from locking.

Lid 30 roof 32 is formed with a medium pore 31, an arc convex ridge 35 around the flange 33 in hole 31 and part around flange 33 on inner surface 34.Convex ridge 35 extends more than about hexagonal angle and has a series of totally five side depressions 39 that sagittal plane is outside.Thereby each depression 39 stitches 37 jiaos with a corresponding bar to align in order to admit and to locate tightly the terminal of the inner of respective fixation contact 50.Thereby each fixing contact 50 (stitches 37 by corresponding bar) in the centre position and inner terminal location (by corresponding depression 39) maintains securely.

In a fixed touch plate 50 of a series of contact one ends ' longer than other fixed touch plate 50.This fixed touch plate 50 ' outer end 52 by two a parts termination caskets encapsulation that on the outside of switch case 10, provides.The inboard that one elastic contact blade 59 is contained in termination casket 58 cooperates with the contact end 52 of encapsulation to firmly grasp the embedding termination of a cable certainly.

Arc fixed touch plate 60 just in time relatively extends beyond about 120 ° with a series of straight fixed touch plate 50 on inner surface 34.Opposed area R between two groups of contacts ₁And R ₂Be empty (as Fig. 4).The

opposite end

62 and 64 of contact 60 radially bends towards outer and extends into the corresponding sealing G that covers 30 perisporium 36 ₁And G ₂In.The perisporium 26 of base 20 has on its inner surface at corresponding sealing G ₁And G ₂The two block teeth T that form of position ₁And T ₂When base 20 snaps together with lid 30, block teeth T ₁And T ₂Closely be engaged in corresponding sealing G ₁And G ₂Thereby in and by

respective end portions

62 and 64 fixed touch plate 60 extruding is put in place.

The end 62 of fixed touch plate 60 is more much longer than other end 64, and but it stretches out is encapsulated by two parts termination caskets on switch case 10 outsides.One elastic contact blade 69 is contained in the termination casket 68 and cooperates to tighten the embedding termination of cable certainly with the contact end 62 of encapsulation.

Electric switch 100 comprises that one has the movable switch contact 70 of a medium pore 72 and the opposed

end

74 and 76 that is upturned.Axle 40 has the lower end 44 of always a upper end 42 (knob or analog dress are thereon) and a plate-like, and the hole 72 by contact 70 extends upward and then pass and cover 30 hole 31, contact 70 be sandwiched in lid flange 33 and spool lower end 44 between.Thereby the upper side of lower end 44 of axle is formed with a pair of relative rib 46 and is used for engaging betwixt contact 70 contact 70 can be rotated by axle 40.The downside of axle lower end 44 is formed with an in-line gears spare 48 with 12 teeth.

A pit 25 that holds a lower end 44 and the spring 49 that provides a level to be M shape are provided the diapire 22 of base 20.The middle turn of bilge of spring 49 is flexibly joined in adjacent two between cog (as shown in Figure 5) of gear member 48 from a side, for axle 40 is determined the position, angle that six or 12 (if relative direction also counts) are stable and is movable contact flat 70 definite six corresponding position of the switch thus.Pit 25 has the lower end 44 that central short column 27 is used for coming by concavity 47 engages axle 40.

In operation, movable contact flat 70 forms corresponding connection position as shown in Figure 6 by its

termination

74 and 76 one in cross-over connection arc fixed touch plate 60 and five the straight fixed touch plate 50 selectively, or the relative dummy section R of cross-over connection ₁And R ₂, constitute open position as shown in Figure 4.

In order to reduce the overall dimensions of electric switch 100, a series of fixed touch plate 50 concentrate in together.As shown in Fig. 4 is the clearest, a pair of interval G forms at the inner surface 34 of the roof 32 of lid 30 and the relative side of each fixed touch plate 50.At interval the chance that contact 50 produces electric arcs is passed with minimizing in the G surperficial path of 50 of adjacent contacts that is used for extending greatly.G also is used for producing and collects or eliminate the assorted or analog of the inevitable carbon that is produced by normal switch motion at interval.

In fact

fixed touch plate

50 and 60 lays respectively in the shallow depression of corresponding formation on the inner surface 34 of the roof 32 of lid 30, thereby the outermost of

contact

50 or 60 or contact-making surface are positioned at the plane identical with the remainder of inner surface 34.To the take in sail end 74 of

contact

70 and 76 relative

fixed contacts

50 and 60 of this set produce undesirable possibility of beating or degree.

Base 20 and snapping together of lid 30 are simple, convenient and rapid.This joint is enough strong, and this mainly is because provide continuous as far as possible buckling device around

switch housing parts

20 and 30 substantially, just groove 28 and rib 38.As shown in Figure 4 and Figure 5, each is all discontinuous at three places for groove 28 and rib 38.

The locate mode of aforesaid fixed touch plate 50 also is simple and rapid.

The present invention is described by embodiment, and those skilled in the art can do various changes and/or distortion to described embodiment, but does not break away from accompanying Claim institute restricted portion.

Claims

1. electric switch, it comprises: a housing that has an axis and formed by first and second housing parts, on a plurality of inner surfaces that are positioned at second housing parts and around the floatless switch contact of axis, one is supported for the switch element that can do angular movement around axis, with a movable switch contact that can rotate by switch element, be used for one and another conducting of bridge joint floatless switch contact, housing parts has the perisporium that is formed with the device that is bonded with each other respectively, the described perisporium wherein of making forms around corresponding perisporium around another perisporium and the coupling device that the two housings parts snap together, and it is characterized in that: described second housing parts is formed with at least one bar that is used to locate a respective fixation contact that passes it and stitches between inner surface and perisporium.

2. electric switch as claimed in claim 1 is characterized in that: be used for stitching fixed touch plate from the side tongue piece that is locked in the position by bar from being bonded on bar seam back thereby described fixed touch plate has a point backward.

3. electric switch as claimed in claim 1 is characterized in that: second housing parts is formed with one and aligns with described seam and to be used for locating by the inner of fixed touch plate the depression of described fixed touch plate on inner surface.

4. electric switch as claimed in claim 1 is characterized in that: the described device that is bonded with each other is elongated and extends along the mating surface between the perisporium.

5. electric switch as claimed in claim 4 is characterized in that: the described device that is bonded with each other is respectively the form of rib and groove.

6. electric switch as claimed in claim 1 is characterized in that: the cylindrical shape of the perisporium of housing parts.

7. electric switch as claimed in claim 1 is characterized in that: some fixed touch plate become a series of settings, and are formed with on the inner surface between every phase adjacency pair of described contact series at interval.

8. electric switch as claimed in claim 7 is characterized in that: a pair of described interval forms on the opposite side of each middle contact of contact series.

9. electric switch as claimed in claim 7 is characterized in that: remaining fixed touch plate is a public fixed touch plate, and this public contact is electrically connected by one in movable contact flat and other fixed touch plate.

10. electric switch as claimed in claim 9 is characterized in that: described public contact has two ends and is pressed between the two housings parts by its end clips and is held in place.

11. electric switch as claimed in claim 1 is characterized in that: described fixed touch plate is located respectively in the respective recesses that is to form on the inner surface, makes the contact surface of contact and the other parts of inner surface be positioned at identical plane.