CN2171914Y

CN2171914Y - Omnibearing dip switch

Info

Publication number: CN2171914Y
Application number: CN 93229221
Authority: CN
Inventors: 李新春
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-11
Filing date: 1993-09-11
Publication date: 1994-07-13
Anticipated expiration: 2003-09-11

Abstract

The utility model relates to a sensing switch that response inclination changes, it is by the switch casing, arrange switch movable contact, stationary contact in the casing in and respectively with move, the electrically conductive lead wire that the stationary contact links to each other constitutes, wherein the switch movable contact is by the pendulum that hangs down that constitutes with pendulum rod and pendulum rod sub-unit connection's pendulum with the casing apron is articulated to be constituted, the stationary contact is fixed on the casing with pendulum rod under the balanced state as the central axis, around the conducting ring constitution of pendulum rod setting. The switch has the characteristics of accurate induction angle, reliable switch performance and long service life.

Description

Whole-position dipangle switch

The utility model relates to and be used for sense object tendency and change, realize the sensitive switch of multiple operating functions such as electric automatic control or warning.

In daily life or in producing, some are to placing the article that angle has requirement, often wait the enough attention that can not get people, arbitrarily put out of hand and cause very big loss, and for example to the patient that suffers from acute burst disease when illness happens suddenly, usually in time help, missed rescue opportunity because of can not get other people.For this reason, people have designed the angle sensor switch, a kind of " faintness autoalarm " disclosed as Chinese patent CN89215340, its feature member is the angle switch that the induction angle changes start-up circuit work, this switch is involutory in the same way by the parabolic housing of two different secondary item constants, mercury bead gravitate in it rolls until rolling into housing fastening place, with the two parallel electrically conductive rings connection at fastening place, connects circuit and realizes reporting to the police automatically.This mercoid switch cut-offs the electric arc that moment produces, impel mercury surface and conducting ring surface oxidation, form non-conductive oxide-film, influence the switch reliability, therefore can only be used for brief biography inducing current circuit, the operating period of corresponding this switch of prolongation of ability, for solution is a defective, Chinese patent CN92216616 provides more than one following recesses to be relatively arranged on " the rolling contact-making switch " be made up of the conducting sphere of gravitate rolling in interior two electrodes of housing and the recess space, replace mercury with conducting sphere, improved the switch reliability but the induction angle of this switch is difficult to harmonize, and the slight vibrations when using, two electrodes are connected, and action is too sensitive, has influenced its application.

Goal of the invention of the present utility model is to provide a kind of can accurately respond to the inclination sensitive switch of setting operating angle, provides especially that a kind of switch performance is stable, reliable comprehensive switch of inclination.

The comprehensive switch of inclination that the utility model provides, place switch moving contact, fixed contact and the conductive lead wire that links to each other with dynamic and static contact respectively in the housing to form by housing, involution, be primarily characterized in that the pendulum be made up of the fixing pendulum in fork and fork lower end and housing one bottom surface are hinged and constitute the switch moving contact; The switch fixed contact is that to be fixed on the switch case with moving contact hinge vertical line be that center line constitutes around the metallic conduction ring that pendulum is provided with.When this switch when vertical line tilts an angle, pendulum drives fork under action of gravity be the axle pendulum that inclines with the pin joint, finally reaches when setting operating angle, fork is fitted with conducting ring, closed this switch, the connection circuit realizes that various functions control.

In the technical program, be the movable contact that minimizing electrically connects, improve the switch reliability of this switch, prevent pin joint because of the phenomenon of using for a long time, loose contact appears in wearing and tearing, fixing welding one conductive connecting line between the conductive lead wire of moving contact and pendulum.

Comprehensive switch of inclination of the present utility model, owing to adopt the pendulum structure, be easy to guarantee the parameters precision of switch itself, can be by changing conducting ring height or the accurate calibration actions angle of its diameter before producing, and can on same conducting ring, make the different-diameter camber line and be used to satisfy requirement in different azimuth induction different angles, switch performance is stable, reliable, is adapted to work long service life in the various sense current circuit.

Embodiment describes the utility model in detail below in conjunction with the following drawings:

Fig. 1-2 is the three-dimensional structure diagram of two kinds of embodiment of the utility model switch of inclination

Fig. 3 is the structure cutaway view of the third switch of inclination embodiment

Comprehensive switch of inclination of the present utility model as shown in the figure, cylindrical shell 1 is made by dielectric plastic material, and the shell rim of its tube port position has a horizontal convex 11, is used to take the cover plate 8 of putting closure casing, the hinged switch moving contact that is provided with of cover plate 8 inner surfaces.

Among the embodiment as shown in Figure 1, the switch moving contact is by forming jointly with the hinged conduction fork 3 of cross axle mode and the pendulum 2 of fork 3 lower ends with cover plate 8, cross axle coupling block 5 connects with 4,10 of upper and lower connecting plates as the transverse axis and the longitudinal axis respectively, upper junction plate 10 screws or riveted and fixed are on housing cover 8, draw a conductive lead wire joint 9 thus, lower connecting plate 4 is fixedlyed connected with fork 3 tops; With the horizontal stroke of cross axle, the vertical line of longitudinal axis intersection point is center line, around fork 3, be provided with conducting ring 12, the respective perforations that conducting ring 12 passes cover plate 8 by the lug 6 that encircles outer rim, riveting is fixed on the cover plate 8, and draw a conductive lead wire joint 7, the fixed contact of this switch of structure face; The terminal 9,7 of dynamic and static contact communicates with control circuit.When switch itself when vertical line tilts, pendulum 2 is subjected to gravity to drive fork 3 and rotates a respective angles around pin joint, when reaching the switch motion angle, fork 3 is fitted with conducting ring 12, connects control circuit, realizes using as a servant in advance fixed circuit control.

Fig. 2 has showed another kind of construction of switch embodiment, circlip 18 is hinged as the connector formation cross axle of the longitudinal axis and transverse axis, and fork 3 intersects with the longitudinal axis 13 of cross axle fixedlys connected, and the lower connecting plate 4 that connects its transverse axis is fixed on the housing bottom surface, and draw conductive lead wire 9, constitute the switch moving contact; In the present embodiment, for dwindling volume of switch, according to lever principle, make full use of the pin joint upper space, as the conducting ring 12 of switch fixed contact is to be the center vertical line with balance fork 3, is arranged on fork 3 and cross axle intersection point 19 tops, wears cover plate 8 by the lug 6 of conducting ring 12 outer rims, riveting is fixed on the cover plate 8, draws conductive lead wire 7.

Fig. 3 has provided the third execution mode of this comprehensive switch of inclination, on housing cover 8, be fixed with the carriage 15 of an inner support balance staff, sphere holder 14 as balance staff places in the carriage 15, and it is identical with carriage 15 concave surfaces, fork 3 passes in the fixedly connected sphere holder 14 of carriage 15 bottom perforateds, from then on draws conductive contact 9 and forms the hinged pendulum switch moving contact of sphere; Fork 3 with poised state is a center line, is provided with a conducting ring 12, with conducting ring 12, on lug 6 pass housing cover 8 riveted and fixed on cover plate 8, and be welded with a conductive lead wire joint 7, constitute the switch fixed contact.When this switch during with object tilt, pendulum 2 drives fork 3 under action of gravity slide sphere holder 14 and carriage 15 inner surface spheres, and final fork 3 is fitted with conducting ring 12, connects circuit and realizes set-up function control.

For the loose contact of avoiding jointed shaft to rub for a long time occurring influences the switch performance of this switch of inclination, fixing welding one lead is avoided pin joint between conductive lead wire and fork, forms directly and fixing electrically connecting; Or as shown in Figure 3, cover fork 3 can be realized above-mentioned purpose at 3 welding of carriage 15 and fork, one multi-turn metal hairspring 16, can utilize the anti-seismic performance of the elastic reaction raising fork 3 of hairspring 16 self again, makes switch performance reliable.

For further weakening vibrations in the use to the influence of switch; improve the accuracy rate of switch motion; annotate the dress circuit-breaker oil in the impulse force when reducing fork and contacting with conducting ring, switch case, circuit-breaker oil both can have been eliminated the electric arc that produces when switch opens and closes; Castor Oil jointed shaft again; and the protection contact point, anti-oxidation, the useful life of prolongation switch; and at cover plate 8 upper pouring epoxy resin 17, with the switch integral sealing.

Claims

1, a kind of comprehensive switch of inclination, by switch case, place switch moving contact, fixed contact and the conductive lead wire that links to each other with dynamic and static contact respectively in the housing to form, it is characterized in that pendulum and housing (1) the one bottom surface hinged formation switch moving contact formed by the fixing pendulum (2) in fork (3) and fork (3) lower end; The switch fixed contact is that center line constitutes around the metallic conduction ring (12) that pendulum is provided with for being fixed on switch case (1) on to cross the hinge vertical line, and when switch tilted to reach set angle, the pendulum pendulum that inclines closed switch closure connection control circuit with conducting ring (12) card.

2, switch of inclination according to claim 1, it is characterized in that fork (3) and housing cover (8) cross axle mode are hinged, the transverse axis of connection cross axle, the upper and lower connecting plate (10,4) of the longitudinal axis are fixedlyed connected with fork (3) top with cover plate (8) is hinged respectively, constitute the switch moving contact.

3, switch of inclination according to claim 1, it is characterized in that being fixed with on the housing cover (8) carriage (15) of an inner support balance staff, sphere holder (14) as balance staff places in the carriage (15), and it is identical with the interior concave spherical surface of carriage (15), fork (3) passes carriage (15) bottom perforated and is fixedly connected in the sphere holder (14), forms the hinged pendulum switch moving contact of sphere.

4, switch of inclination according to claim 1, it is characterized in that sliding, wearing and tearing because of long-term, cause loose contact, influence switch performance, between moving contact conductive lead wire (9) and fork (3), be welded with a lead for the pin joint that prevents the switch moving contact, avoid hinge, formation directly electrically connects.

5, according to claim 3 or 4 described switch of inclination, it is characterized in that for increasing the switch reliability, getting around pin joint and form directly and electrically connect, improve the anti-seismic performance of fork, be with multi-turn hairspring (16) around fork, hairspring (16) two ends are welded between conductive lead wire (9) and the fork (3).

6, switch of inclination according to claim 1 and 2, it is characterized in that for dwindling volume of switch, make full use of the pin joint upper space, conducting ring (12) is that center line is fixed on pin joint top with the fork under the poised state (3), fork (3) fulcrum is fitted with top and conducting ring (12) or is disconnected, and finishes switch motion.

7, switch of inclination according to claim 1, impulse force for reducing to produce when fork and conducting ring are fitted on its feature, and eliminate electric arc closed, that produce when disconnecting, and annotate the dress circuit-breaker oil in the switch case, go up casting resin (17) with the switch integral sealing at cover plate (8).