JPS598013B2 - Switching switchgear - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switching opening/closing device that can switch contact pieces in substantially the same manner as a shift lever for changing gears in an automobile, and particularly in electric vehicles and electric vehicle transmissions. This invention relates to a switch suitable for use as a shift switch.

Hereinafter, the present invention will be explained according to an embodiment of a two-circuit, five-contact switching switchgear shown in the drawings. FIG. 1 is an overall perspective view, FIG. 2 is an exploded perspective view, and FIGS. 3 and 4 are cross-sectional views. In the figure, reference numeral 1 denotes a fixed plate on which a plurality of fixed contact pieces 2 are arranged, and these plurality of fixed contact pieces 2 have comb-like joint surfaces X1...X5, Y1 that face each other. ...Power contact pieces X, Y having Y5 and their joint surfaces X1...X5,
Consisting of a pair of first to fifth output contact pieces A1...A5, B1...B5 arranged opposite to Y1...Y5,
These are constructed by etching them onto a printed circuit board.

Note that a1...a5, b1...b5, x, and y are connection wires connected to the respective fixed contacts.

P and Q are a pair of movable contacts that contact the fixed contact piece 2 and slide between these fixed contact pieces 2, 3 holds the pair of movable contact pieces P and Q on the lower surface thereof, and It is a movable plate having a pair of engaging sliding pieces 4 and 5 protruding in the direction, and a lever engaging hole 6 provided on its upper surface.

Reference numeral 7 denotes a storage frame body having a lever storage space 8 in the center, and the storage frame body 7 has a sliding piece engagement hole IL12 bored in the lower surface of the longitudinal front and rear frames 9, 10. Sliding piece engagement hole 11,
12 and a sliding piece fixing plate 1 that covers this sliding piece engagement hole IL12.
3 and 14, the engaging sliding pieces 4 and 5 of the movable plate 3
are loosely inserted into each other, thereby allowing the movable plate 3 to be slidably engaged with the lower part of the storage frame 7.

Reference numeral 15 denotes an operating lever for moving the movable plate 3. The operating lever 15 has an operating knob 16 screwed onto its upper end, and its lower end is formed into a spherical shape so that it loosely fits into the lever engagement hole 6 of the movable plate 3. A movable plate abutting portion 17 is provided, and a spherical shaft support 18 is further provided in the middle thereof.

Reference numeral 19 denotes an operating lever support plate that rotatably supports the operating lever 15. The operating lever supporting plate 19 has an inclined groove 20 in the center and a pivot hole 21 in the center thereof. , and further has a mounting frame 22 with a peripheral edge hanging down at a right angle.

Further, reference numeral 23 denotes a support plate cover which is provided with an inclined protrusion 24 in the center and also has a shaft support hole 25 in the center thereof. By making the upper and lower ends project into the shaft support holes 2L25 of the operating lever support plate 19 and the support plate cover 23, respectively, so as to be sandwiched between the inclined convex portions 24, the operation lever support plate 19 and the support plate It is rotatably supported by the cover 23.

Reference numeral 26 denotes a regulation plate disposed between the operation lever support plate 19 and the storage frame 3 to regulate the rotation of the operation lever 15. The regulation plate 26 has a lateral position regulation hole C in the lateral direction. ,
The first to fifth vertical position regulating holes D1 to D5 are provided in the vertical direction so as to intersect with each other at a plurality of locations in the horizontal direction. When the operating lever 15 is engaged, a pair of power contacts X and Y among the plurality of fixed contacts 2 and the first to fifth of the pair corresponding to the engaged vertical position regulating holes are connected. Output contact piece A1~A
5, B1 to B5 are short-circuited by a pair of movable contacts P and Q of the movable plate 3.

27 and 28 are the left and right frames 2 of the storage frame 7 so that their ends 27' and 28' protrude into the shaft storage space 8.
9 and 30, one end 27' of the left leaf spring 21 is attached to the left side surface 31 of the movable plate 3.
One end 28' of the right leaf spring 28 is pressed against the end of the right side surface 32 of the movable plate 3 to bias the movable plate 3 from left and right.

Reference numerals 33 and 34 denote front leaf springs and rear leaf springs attached to the front and rear frames 9 and 10 of the storage frame 3, and one end 33' of the front leaf spring 33 hangs down outside the front frame 9 of the storage frame 7. At the same time, one end 34' of the rear leaf spring 34 hangs down to the outside of the rear frame 10 of the storage frame 7 at the end 4' of the engagement sliding piece 4 in front of the movable plate 3. The movable plate 3 is normally urged from the front and rear directions by being pressed against the end portions 5' of the engaging sliding pieces 5, respectively.

Further, one end 33' of this front plate spring 33 is attached to a front engagement slide that protrudes from the front slide piece engagement hole 11 of the storage frame 7 when the movable plate 3 slides rearward in the vertical direction. By climbing over the end portion 4' of the movable piece 4 and fitting into the locking groove 35 provided on the upper surface thereof, the moving state of the movable plate 3 to the rear side in the vertical direction is locked.

Further, when the movable plate 3 slides to the front side in the longitudinal direction, one end 34' of the rear spring 34 is connected to the rear engagement sliding piece 5 in the same manner as described above.
By getting over the end 5' of the movable plate 3 and fitting into the locking groove 36, the moving state of the movable plate 3 to the front side in the vertical direction is locked.

The operating lever support plate 19 rotatably supports the operating lever 15 together with the support plate cover 23, and the regulating plate 2 passes through the operating lever 15 and regulates its movement position.
6 and a movable plate 3 having front, rear, left and right leaf springs 33, 34, 27, 28 and loosely fitting the movable plate contact portion 17 of the operating lever 15 into the lever engagement hole 6, is movably locked. The storage frame 7 and the fixed plate 1 having the fixed contact piece 2 are stacked one after another, and the screws 37 and 38 and the screw holes 39 and 40 of the mounting frame 22 of the operating lever support plate 19 are fixed by screwing, This is what unifies the whole.

Therefore, the operating lever 15 is always operated by the front, rear, left and right leaf springs 33.
, 34, 27, and 28, the movable plate 3 is held in a neutral position.

Next, when the operating knob 16 of the operating lever 15 is tilted to the left and upward, the movable plate abutting portion 17 is tilted symmetrically about the spherical shaft support 18, so that the movable plate 3 is tilted to the right and upward. The movable plate 3 slides downward to short-circuit the pair of power contacts X, Y of the fixed plate 1 and the pair of first output contacts A1, B1 by the pair of movable contacts P, Q. By fitting one end 34' of the rear leaf spring 34 into the locking groove 36 of the rear engagement sliding piece 5, the tilted state of the operating lever 15 is locked.

Furthermore, when the operation lever 15 is tilted to other longitudinal positions, the movable plate slides in substantially the same manner as described above, and the corresponding pair of output contacts and pair of power contacts are moved. are short-circuited by a pair of movable contact pieces attached to a movable plate.

In this manner, the operating lever is tilted and locked as shown in FIG.

The switching device of the present invention is used, for example, as a changeover switch in an electric circuit as shown in FIG.

That is, FIG. 7 shows an integrated switch for changing the speed of a drive motor in an electric vehicle and a corresponding switch for a display lamp that displays the speed change position. , E is a power source, R1...R5 are resistances for speed change, M is a drive motor, and L1...L5 are indicator lamps.

As described above, the present invention includes a fixed plate provided with a plurality of fixed contact pieces, a movable plate provided with a movable contact piece that contacts these fixed contact pieces and slides between these fixed contact pieces, an operating lever for moving the movable plate; a regulating plate for regulating the movement of the operating lever in the lateral direction and in the vertical direction that intersects with the lateral direction at a plurality of locations; a plurality of spring members in contact with a plate, and at least one spring member of the plurality of spring members engages with the movable plate when the operating lever moves in the vertical direction. Since the operating lever is held in the moving state,
The present invention is capable of switching electric circuits in substantially the same manner as a shift lever in a car, and is therefore suitable for use as a shift switch in an electric vehicle or an electric transmission device for a vehicle. Since a part of the spring material is also used as a means for engaging the movable plate and holding the operating lever in the moving state when the operating lever is moved in the vertical direction, it is possible to provide a means for maintaining the operating state when switching the switch. There is no need to newly provide one, and manufacturing costs can be reduced.

[Brief explanation of drawings]

1 to 6 show an embodiment of the switching switchgear of the present invention, FIG. 7 shows an example of an electric circuit diagram using the switching switchgear of the present invention, FIG. 1 is an overall perspective view, and FIG. The figure is an exploded perspective view.
FIG. 3 is a cross-sectional view of FIG. 1, where A is a cross-sectional view and the opening is a vertical cross-sectional view. Figure 4 is an explanatory diagram of the operating lever in a tilted state.
The figure shows a cross-sectional explanatory view of the main part, and the figure shows a longitudinal cross-sectional view of the main part. FIG. 5 is a diagram showing the relationship between the fixed contact piece and the movable contact piece of the fixed plate, and FIG. 6 is a diagram showing the tilted position of the operating lever. 2... Fixed contact piece, 1... Fixed plate, P, Q... Movable contact piece, 3... Movable plate, 15... Operating lever, 26...
...Regulation plate, 27...Left leaf spring, 28...Right leaf spring, 33...Front leaf spring, 34...Rear leaf spring, 4,5.
... Sliding loaf for engagement.

Claims (1)

[Claims] 1. A fixed plate provided with a plurality of fixed contact pieces, a movable plate equipped with a movable contact piece that contacts these fixed contact pieces and slides between these fixed contact pieces, and moving the movable plate. an operating lever, a regulating plate that restricts movement of the operating lever in the horizontal direction and in a vertical direction that intersects with the horizontal direction at a plurality of locations, and is in contact with the movable plate that always maintains the operating lever in a neutral position. a plurality of spring members, and when the operating lever moves in the vertical direction, at least one spring member of the plurality of spring members engages with the movable plate to move the operating lever to the moving state. A switching device that is held in place.