CN2739737Y

CN2739737Y - Multifunctional electromagnetic relay demonstrating device

Info

Publication number: CN2739737Y
Application number: CN 200420041291
Authority: CN
Inventors: 何芳喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-15
Filing date: 2004-06-15
Publication date: 2005-11-09
Anticipated expiration: 2014-06-15

Abstract

The utility model is a multifunctional electromagnetic relay demonstrating device, belonging to a teaching aid. The utility model comprises an electromagnetic relay and a patch board. The utility model is characterized in that one end of a coil An of the electromagnetic relay is electrically connected with a jack 5, the other end is electrically connected with a jack 6 by the direct current power supply B and a switch D is in parallel connected with the jack 5 and the jack 6. An armature of the electromagnetic relay is provided with a fixed arm G. An electrode H on the end part of the fixed arm G is matched with electrodes E, F on both sides of the fixed arm G. Jacks 1, 2 and jacks 3, 4 are respectively connected between the electrodes E, F and connection points K, L. Jacks 7, 8 and a plug C are connected in parallel between the electrode H and a connection point M. An electric element can be correspondingly selected and plugged between the jacks 5, 6, the jacks 1, 2, the jacks 3, 4 and the jacks 7, 8 on the ground of demonstrating require. The electric element can have most forms. The teaching aid is on the ground of the principia of learning to using, the teachers and the students are participate in together and the demonstrating contents are various, dramatic and diverting. The utility model increases the abilities of the perceptual knowledge and the actually doing by hands of the students and makes the students verily realize the principle of the electromagnetic relay.

Description

Multifunction electric magnetic relay demonstration device

Technical field

The utility model relates to a kind of teaching aid of electricity field, multifunction electric magnetic relay demonstration device.

Background technology

In present teaching, the principle of electromagnetic relay can only provide rational knowledge to the student, and study is got up more uninteresting, lacks vividness, iconicity, practicality.

Summary of the invention

The purpose of this utility model provides a kind of multifunction electric magnetic relay demonstration device, in line with the principle of studying in order to practise, and teachers and students' fellowship, the content of demonstration is various, and vivid and interesting makes the student really recognize the principle of electromagnetic relay.

The technical solution of the utility model is this multifunction electric magnetic relay demonstration device, it comprises electromagnetic relay and plugboard, an end that it is characterized in that described electromagnetic relay coil A is electrically connected socket 5, the other end is electrically connected socket 6 by direct supply B, is parallel with switch D with socket 5,6; The armature of electromagnetic relay is provided with fixed arm G, and the electrode H of this fixed arm G end matches with electrode E, the F of its both sides, is connected socket 1,2 respectively, socket 3,4 between electrode E, F and contact K, the L; Between electrode H and the contact M and be connected to socket 7,8 and plug C; According to demonstration needs socket 5,6, socket 1,2, socket 3,4 can selectivity patch corresponding electrical part between the socket 7,8.

Be the principle of demonstration low-voltage, weak current control high voltage, heavy current, socket 1,2 inserts green, red incandescent lamp respectively between the socket 3,4.

Be the demonstration remote operation, socket 1,2, insert miniature motor between the socket 3,4 respectively and by screw retention on plugboard, between socket 5,6, connect the hand held switch of certain-length lead, socket 7,8 places insert a direct current power supply.

Be demonstration water level automatic alarm and cistern automatic water-supply, patch the flood control alarm between the socket 5,6, the flood control alarm consists of: place the float in the tank, pair of electrodes K ' is established in the push rod upper end, the push rod lower end is a float arc plate, with the corresponding pair of electrodes K of push rod upper end electrode K ' " by lead and plug K _cBe electrically connected; Socket 1,2 and socket 3,4 are plugged green, red miniature bulb respectively; 7,8 places insert a direct current power supply at socket.If with the motor changing-over at socket 1,2 places, but when then simulation cistern middle water level reduced, motor was just worked automatically and is driven the situation that water pump supplies water to cistern.

Be the application of demonstration burglar alarm, insert the burglar alarm pedals in the described socket 5,6, this burglar alarm pedal is provided with two pedals of respective electrode contact by inside surface, and pedal is provided with elastic body between the two ends, and electrode contacts is by lead attachment plug; Socket 1,2, socket 3,4 inserts green light and electric bell respectively.

The beneficial effects of the utility model are:

1, this teaching aid can the image, demonstrate electromagnetic relay remote operation and automatic control action in practice intuitively, make the student really recognize the principle of electromagnetic relay.

2, this teaching aid is with far distance controlled, and water level control and burglar alarm etc. organically combine, and the content of demonstration is various, vivid and interesting.

3, this teaching aid is in line with the principle of studying in order to practise, require teachers and students' fellowship, the teacher is along with demonstration gos deep into step by step, corresponding problem is proposed, the student beats one's brains and starts, and each and every one is eager to have a try, and proposes the scheme of dealing with problems, and the circuit of trying, inspire and cultivated the creationary thinking ability of student effectively.

4, this teaching aid makes demonstrator, and visibility is big.

5, material is easy to get, and is convenient to make, and is beneficial to popularization.

Description of drawings

Fig. 1 is basic circuit annexation figure of the present utility model;

Fig. 2 is flood control alarm partial circuit annexation figure of the present utility model;

Fig. 3 is burglar alarm tread portion parallel circuit annexation figure of the present utility model.

Embodiment

As Fig. 1.Electromagnetic relay is adopted J2412 type, 4.5V-6V; It is 6V that direct supply B adopts voltage; Plug, switch etc. connect each element with lead.Simultaneously, at socket 1,2; Socket 3,4; Socket 5,6; Socket 7,8 places fix the metal jack of the exhausted cover of band.Each 220V40W of red fully, green incandescent lamp in addition, 2 J2418 types of miniature motor, 3V-6V; 1 701 type 6V of electric bell is connected with one on the switch of long lead, each one of red, green miniature bulb 6V, many pieces of gib screws, direct supply voltage 6V.

The end of electromagnetic relay coil A is electrically connected socket 5, the other end is electrically connected socket 6 by direct supply B, is parallel with switch D with socket 5,6; The armature of electromagnetic relay is provided with fixed arm G, and the electrode H of this fixed arm G end matches with electrode E, the F of its both sides, is connected socket 1,2 respectively, socket 3,4 between electrode E, F and contact K, the L; Between electrode H and the contact M and be connected to socket 7,8 and plug C; According to demonstration needs socket 5,6, socket 1,2, socket 3,4 can selectivity patch corresponding electrical part between the socket 7,8.

By assemble the flood control alarm as Fig. 2.Place the float in the tank, pair of electrodes K ' is established in the push rod upper end, and the push rod lower end is a float arc plate, with the corresponding pair of contact electrode of push rod upper end electrode K ' K " by lead and plug K _cBe electrically connected; Socket 1,2 and socket 3,4 are plugged green, red miniature bulb respectively; 7,8 places insert a direct current power supply at socket.If with the motor changing-over at socket 1,2 places, but when then simulation cistern middle water level reduced, motor was just worked automatically and is driven the situation that water pump supplies water to cistern.

By assemble the burglar alarm pedal as Fig. 3.The burglar alarm pedal is provided with two pedals of respective electrode contact by inside surface, and pedal is provided with elastic body between the two ends, and electrode contacts is by lead attachment plug; Socket 1,2, socket 3,4 inserts green light and electric bell respectively.

All be equipped with in addition and homemade equipment in, need be connected into the element of jack, metallic plug all should be welded in two ends.

Demo content:

1, demonstration utilizes low-voltage, weak current control high voltage heavy current.

(1) green, red incandescent lamp is connected on respectively on socket 1,2 and socket 3,4 jacks.

(2) plug C is inserted the AC power jack, like this, form by electromagnetic relay, direct supply B, switch D

" low-voltage control circuit "; And " high-pressure work circuit " formed in 220V AC power, incandescent lamp and contact.

(3), can demonstrate the control of electromagnetic relay to red, the green light in the operating circuit when closed or open switch D.

2, demonstration remote operation.

(1) switch D is opened, plug C has disconnected AC power, and 7,8 places insert another direct supply at socket.

(2) at socket 1,2, socket 3,4 places insert miniature motor respectively and are fixed on the screw.

(3) switch that will be connected with long lead is connected on socket 5,6 jacks, can demonstrate the central authorities that stand in the classroom, and hand is taken away the pass, different miniature motor work on place, the control dais demonstrator.

3, demonstration water level automatic alarm and cistern automatic water-supply

(1) with the plug K on the flood control alarm _cInsert in socket 5,6 holes.

(2) at socket 1,2, and green, red miniature bulb is plugged at socket 3,4 places respectively.

(3) switch D is opened, plug has disconnected AC power, and 7,8 places connect direct supply at socket.

(4) regulate water level in the tank, thereby when the demonstration water level was low, green light was bright; When water level raise, float a rose, and makes moving contact electrode K ' rising and stationary contact electrode K " contact, energized, electromagnetic relay work makes the luminous warning of red light.

(5) also can report to the police with the tinkle of bells with the electric bell changing-over at socket 3,4 places.

(6) if with the miniature motor changing-over at socket 1,2 places, but when then simulation cistern middle water level reduced, motor was just worked automatically and is driven the situation that water pump supplies water to cistern.

4, demonstration burglar alarm

(1) plug on the burglar alarm pedal is inserted in socket 5,6 holes.

(2) plug green light bubble and electric bell respectively at socket 1,2 and socket 3,4 jack places.

When (4) demonstration had people's pedal, electromagnet was magnetic, the electric bell circuit working, and bell ring is reported to the police; During unmanned pedal, electromagnet is nonmagnetic, bulb circuit work, the bright safety of lamp.

Claims

1, multifunction electric magnetic relay demonstration device, it comprises electromagnetic relay and plugboard, an end that it is characterized in that described electromagnetic relay coil (A) is electrically connected socket (5), the other end is electrically connected socket (6) by direct supply (B), is parallel with switch (D) with socket (5), (6); The armature of electromagnetic relay is provided with fixed arm (G), and the electrode (H) of this fixed arm (G) end matches with the electrode (E, F) of its both sides, is connected socket (1), (2) respectively, socket (3), (4) between electrode (E, F) and the contact (K, L); Between electrode (H) and the contact (M) and be connected to socket (7), (8) and plug (C): socket (5), (6), socket (1), (2), socket (3), (4) can patch corresponding electrical part between socket (7), (8).

2, multifunction electric magnetic relay demonstration device according to claim 1 is characterized in that socket (1), (2), inserts green, red incandescent lamp between socket (3), (4) respectively.

3, multifunction electric magnetic relay demonstration device according to claim 1, it is characterized in that socket (1), (2), insert miniature motor between socket (3), (4) respectively and by screw retention on plugboard, connect the hand held switch of certain-length lead between socket (5), (6), a direct current power supply is located to insert in socket (7), (8).

4, multifunction electric magnetic relay demonstration device according to claim 1, it is characterized in that patching the flood control alarm between socket (5), (6), the flood control alarm consists of: place the float in the tank, pair of electrodes K ' is established in the push rod upper end, the push rod lower end is a float arc plate, with the corresponding pair of electrodes K of push rod upper end electrode K ' " be electrically connected with plug KC by lead; Socket (1), (2) are plugged green, red miniature bulb respectively with socket (3), (4); Locate to insert a direct current power supply in socket (7), (8).

5, multifunction electric magnetic relay demonstration device according to claim 1, it is characterized in that inserting in described socket (5), (6) the burglar alarm pedal, this burglar alarm pedal is provided with two pedals of respective electrode contact by inside surface, pedal is provided with elastic body between the two ends, and electrode contacts is by lead attachment plug; Socket (1), (2), socket (3), (4) are inserted green light and electric bell respectively.