CN1103506A

CN1103506A - Electro-magnetic microswitch push-button

Info

Publication number: CN1103506A
Application number: CN 93118018
Authority: CN
Inventors: 张居平
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-01
Filing date: 1993-12-01
Publication date: 1995-06-07

Abstract

The electromagnetic microswitch push-button is composed of microswitch, stand, and control assemble including relay and IC, and features control of hig current with low current and two purpose of A.C and D.C.

Description

Electro-magnetic microswitch push-button

The present invention relates to a kind of electro-magnetic microswitch push-button, belong to the electrical equipment control technical field.

Electric current is less to be restricted existing sensitive switch owing to it allows.Though and the prior mechanical push-button switch can allow big electric current but useful life is short and can not self form industrial control circuit.For this reason, in industrial control circuit, expect a kind of control device of taking into account above-mentioned both advantages.

The object of the present invention is to provide a kind of electro-magnetic microswitch push-button, it can overcome the deficiency in the prior art, and both easy for operation reliable, long working life can be controlled bigger industrial electric current again; Simultaneously, simple in structure, make easily, help standardized production.

This task, the present invention so solves: electro-magnetic microswitch push-button is characterized in that: on a bearing sensitive switch and control assembly are installed.

Preferred version is on of the present invention one, described bearing is the circular slab structure, at the fixedly connected annulus spare of one side, the circular top cover that connects an enlarged diameter in annulus spare free end side, the outer face of this cover piece is equipped with circular groove and is used to place sensitive switch, at the affixed rectangular box of plate shape support opposite side, a control assembly that is made of electromagnetic type relay is installed in it, and seal with a cover plate, all electric connections are installed in above the cover plate, sensitive switch is connected with the circuit of relay: be connected to both ends of power after sensitive switch and the relay series connection, the public point of sensitive switch and power supply is connected on the intermediate active contact of relay, and then normally closed and normally opened contact all can be the control output end.

A modification of the present invention is, bearing is dull and stereotyped rectangular configuration, the affixed cross section of one side is oval-shaped ring, the ring opposite side connect elliptical flat-plate lid that an outline enlarges, above two fine motion membrane switchs are set, in the affixed rectangular box of board mount opposite side, the control assembly that is made of two electromagnetic relays is installed in it; Circuit connects: first sensitive switch and the series connection of first relay are connected to both ends of power, second sensitive switch and the series connection of second relay are connected to both ends of power, the middle moving contact of the common point of first sensitive switch and first relay and second relay (one group contact in) is connected, the normally opened contact of normally-closed contact of second relay and first relay (one group contact in) links to each other, and the common port of first sensitive switch and power supply is connected with moving contact in first relay.

A preferred version of the present invention is, the control assembly that it is equipped with two sensitive switches and is made of IC integrated circuit and relay, circuit connects: an end points of first sensitive switch is connected with resistance one end, the termination 4 of this resistance other end and positive source and " IC circuit block " ', 8 ' link to each other (common point); The termination 2 of the common point of first sensitive switch and second sensitive switch and " IC integrated package " ', 6 ' link to each other; Another end points and the power cathode of second sensitive switch, relay, diode cathode, electric capacity one end, the termination 1 of " IC integrated package " ' be linked to be common point; The electric capacity other end and termination 5 ' link to each other; The diode cathode and the relay other end be connected to termination 3 '.

Another preferred version of the present invention is, sensitive switch and the control assembly that is made of relay and IC circuit block are combined, and its circuit connects and is: the termination 4 of " IC integrated package " ', 8 ' with positive source, first resistance, one end, relay one end, diode cathode is linked to be common point; First resistance be connected in parallel on the power supply after second resistance is connected; Termination 1 ', behind termination 5 ' serial connection first electric capacity, all be connected to power cathode behind termination 3 ' serial connection the 3rd resistance and second electric capacity; First resistance and second resistance serial connection common point and termination 2 ', 6 ' reach sensitive switch one end points to be connected; Another end points of sensitive switch is connected to the common point that is connected in series of the 3rd resistance and second electric capacity; The relay other end and diode cathode (or passing through light-emitting diode) be connected to termination 7 '.

Describe the present invention in detail by accompanying drawing below.

Fig. 1 is the overall vertical profile sketch of one embodiment of the invention

Fig. 2 is the one embodiment of the invention circuit diagram

Fig. 3 is further embodiment of this invention circuit diagram

Fig. 4 is another embodiment of the present invention circuit diagram

Fig. 5 is yet another embodiment of the invention circuit diagram

Referring to Fig. 1, wherein, 1 is bearing, be generally plate circular or square or rectangle, 2 is particularly fine motion thin film switch of sensitive switch, and 3 is control assembly, and 4 is annular spare, 5 is rectangle or cylindrical shape box body, 6 is circular cover piece, and 7 is joint, and 8 is cover plate, wherein, used connection lead is not done and is specifically described and illustrate.In addition, can expect the distressed structure that other are a lot, can be plate or directly be not fixed on cover piece 6 on the bearing such as annulus spare 4 by the concrete structure scheme of present embodiment; Cover piece 6 and box body 5 are separately fixed at the both sides of bearing 1, but also can be on the same side, and material therefor can be ambroin or bakelite etc.

Fig. 2 is a preferred version circuit structure diagram of the present invention, and wherein, described control assembly is an electromagnetic type relay J ₁, R ₁And R ₂Be operating load, relay is an AC relay, at state shown in Figure 2, R ₁For the work run location, as sensitive switch B ₁After pressing, relay J ₁Excitation, K _1-1The moving point in centre move on the normally opened contact by normally closed position, so R ₂Work, then R ₂Work, then R ₁Outage; As switch B ₁Takeoff disconnect after, relay J then ₁Outage discharges, K _1-1Moving point get back to normally closed position, so R ₁Energising again, and R ₂Outage.

Fig. 3 is the circuit diagram of another form, wherein, is provided with two sensitive switch B ₁And B ₂, and control assembly is by two relay J ₁, J ₂Constitute, its circuit is connected the front and states, only operation principle is described as follows for this reason: as the first sensitive switch B ₁When pressing, first relay J ₁The energising excitation, then middle moving contact is moved to and the normally opened contact position contacting by normally closed position, thus load R ₁Outage, then R ₂Circuit is connected, even B ₁Takeoff when disconnecting, because J ₁The self-locking action of relay is so circuit state is constant; Have only as the second sensitive switch B ₂When pressing, because the second AC relay J ₂Energising excitation makes its moving contact K _2-1Normally-closed contact is left in action, thereby causes J ₁Outage discharges, its moving contact K _1-1, K _1-2Get back to normally closed position, promptly circuit is got back to R ₁Energising, R ₂The state of outage.

Another implements circuit diagram to Fig. 4 for the present invention, wherein, two sensitive switch B is arranged ₃, B ₄, a direct current relay J ₃, IC integrated package such as NE555 time-base circuit piece, a resistance R ₃Be 12K, a diode D ₁, a capacitor C ₁As be 0.01 μ.Power supply E is the 9-12V direct current.Its operation principle is: when pressing B ₄The time, termination 2 ground connection make IC ground connection and make the set of IC piece, and so termination 3 ' be high potential is relay J ₃The excitation action, its moving contact motion; When pressing B ₃During switch, termination 6 ' current potential is higher than its valve current potential, the set of IC piece, termination 3 ' be electronegative potential, relay J ₃Outage, the change in location of its moving point can be used for the corresponding control circuit of load.

Fig. 5 represents another preferred version circuit structure diagram, wherein, and a sensitive switch B ₅, an IC integrated package is a NE555 time-base circuit piece, a direct current relay J4, a diode D ₁As D ₁N4148, a LED resistance R ₄Be 47K, R ₅Be 47K, R ₆Be 1M, capacitor C ₁Be 0.01M, C ₂Be 0.022 μ, DC power supply E is 12 volts.Its operation principle is: as switch B ₅Termination 2 during disconnection ', 6 ' current potential is 6V, thereby 3 ' pin current potential or high or low, has randomness.If termination 3 ' be high potential (10.5V according to appointment), when clicking B ₅The time, C ₂On voltage add to termination 6 ' on because it is higher than evoked potential 2/3V _DO=8 volts of (V _DO=12 volts) IC is resetted, termination 3 ' transfer to electronegative potential.Simultaneously, because of discharge tube saturation conduction in the IC, termination 7 ' be electronegative potential, so LED is bright, relay J ₄The energising excitation.Though B ₅By after rebound, but do not influence circuit state.If click B again ₅, then make IC set, termination 3 ' be high potential, J ₄Outage discharges, and circuit is in another stable state again.Equally, the change in location of moving contact is used for control circuit.

By several specific embodiments of the present invention following several advantage is arranged as can be seen:

1, the circuit by the operation Weak current, i.e. the loop of the big electric current of may command, but self form industrial controlled function again; Thereby maximum current is reliable again by relay specification decision both safety, and long working life and AC/DC.

2, structure is light and handy, and it is little to take up room, thereby not only makes easily but also economize on material and be beneficial to structure arrangement.

3, can standardized production, be beneficial to automatic assembly line processing, thus good economy performance.

4, specious, be beneficial to production and marketing.

Claims

1, a kind of electromagnetism fine motion control button is characterized in that, a rigid mount (1) is provided with sensitive switch (2) and electric controling assembly (3).

2, by the described control button of claim 1, it is characterized in that: described bearing (1) is the circular plate type structure, at the fixedly connected annulus spare of one side (4), the gas dome (6) that connects an enlarged diameter in the annulus free end side, its outer face is equipped with groove and is used to place a switch (2), at bearing (1) the affixed box body of opposite side (5), the control assembly (3) that is made of an AC relay is installed in it, and seal with a cover plate (8), its circuit connects and is: sensitive switch (B ₁, 2) and relay (J ₁) be connected to both ends of power, B after the series connection ₁The common point of switch and power supply is connected on the moving contact of relay, and then itself and normally closed and normally opened contact form the control output end.

3, by the described control button of claim 1, it is characterized in that: described sensitive switch (2) is two sensitive switch B ₁And B ₂, control assembly comprises two AC relay J ₁And J ₂, circuit structure is: the first sensitive switch B ₁With first relay J ₁Series connection is connected to both ends of power; The second sensitive switch B ₂With second relay J ₂Series connection is connected to both ends of power; The first switch B ₁With first relay J ₁The common point and second relay J ₂A normally opened contact link to each other, the normally-closed contact of second relay links to each other with a normally opened contact of first relay; The first switch B ₁Link to each other with the first relay moving contact with the common point of power supply.

4, by the described control button of claim 1, it is characterized in that: be provided with two sensitive switch B ₃And B ₄, and by IC integrated circuit block and a direct current relay (J ₃) control assembly formed, circuit structure is: the termination 4 of positive source and IC piece ', 8 ' and resistance R ₃An end link to each other; Resistance 3 ' other end and switch B ₃, B ₄Be connected to IC termination 1 and power cathode after the serial connection; IC termination 2 ', 6 ' be connected to switch B ₃, B ₄Common point; Termination 5 ' through capacitor C ₁Be connected to negative pole; Relay J ₃With diode D ₁Link after the parallel connection termination 3 ' and negative pole between, diode cathode be connected to termination 3 '.

5, by the described control button of claim 1, it is characterized in that: be provided with a sensitive switch B ₅With by IC piece and direct current relay J ₄The control assembly (3) that constitutes, its circuit structure is: two substitutional resistance R ₄, R ₅Be parallel between the DC power supply after the series connection; IC termination 4,8 is connected to positive source; Relay J ₄With diode D ₁(oppositely), back in parallel was connected to IC termination 7 from positive source by LED (Do) (forward), and termination 1 is direct, and termination 5 is through capacitor C ₁Be connected to power cathode, resistance R ₆And capacitor C ₂The series connection back is connected to power cathode from IC termination 3; Switch B ₅A contact and IC termination 2,6, resistance R ₄, R ₅Be linked to be common point; B ₅Another contact be connected to resistance R ₆And capacitor C ₂Common point.

6, by the described control device of one of aforementioned claim, it is characterized in that: bearing (1), annulus spare (4), top cover (6), box body (5), cover plate (8) are with ambroin or bakelite manufacturing.