CN210167315U

CN210167315U - Bistable relay

Info

Publication number: CN210167315U
Application number: CN201921304521.0U
Authority: CN
Inventors: 申亚梅
Original assignee: Tianjin Yadong Zhixin Technology Co Ltd
Current assignee: Tianjin Yadong Zhixin Technology Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-03-20
Anticipated expiration: 2029-08-13

Abstract

The utility model relates to a bistable relay, including I shape iron core, iron core middle part spiral winding has solenoid, and iron core one side is equipped with a magnetizer of type in bas-relief, and the iron core opposite side is equipped with the magnetizer of type in bas-relief No. two, and a magnetizer and No. two magnetizer openings department set up relatively, and the both ends of a magnetizer and No. two magnetizers all link there is the hard magnet. The utility model discloses the good reliability, sensitivity is high, and simple structure, it is less to occupy the total volume, in addition, when the disconnection, the spring phenomenon can not appear to components and parts in the circuit have been protected.

Description

Bistable relay

Technical Field

The utility model relates to a relay technical field especially relates to a bistable relay.

Background

A relay is an electric control device that causes a predetermined step change in an electric output circuit when a change in an input amount meets a predetermined requirement. The automatic switch has the mutual relation between a control system and a controlled system, is usually applied to an automatic control circuit, is actually an automatic switch for controlling the operation of large current by using small current, and plays the roles of automatic regulation, safety protection, circuit conversion and the like in the circuit.

The traditional relay has poor reliability, low sensitivity and larger occupied total volume. In addition, because the current of the existing relay control circuit on the coil of the relay can still generate magnetic force to attract the normally open contact for a period of time after receiving the off signal, the bouncing phenomenon is generated, and other devices in the circuit are very easy to damage.

Disclosure of Invention

The utility model aims at solving the defects of the prior art and providing a bistable relay.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a bistable relay comprises an I-shaped iron core, and is characterized in that an electromagnetic coil is spirally wound in the middle of the iron core, one side of the iron core is provided with a concave first magnetizer, the other side of the iron core is provided with a concave second magnetizer, the openings of the first magnetizer and the second magnetizer are oppositely arranged, both ends of the first magnetizer and the second magnetizer are respectively connected with a hard magnet, the N poles of the hard magnets at both ends of the first magnetizer are fixedly connected with the first magnetizer, the S poles of the hard magnets at both ends of the second magnetizer are fixedly connected with the second magnetizer, one side of the hard magnet at the lower end of the first magnetizer, which is close to the iron core, is provided with a first contact, one side of the hard magnet at the upper end of the second magnetizer, which is close to the iron core, is provided with a second contact, one side of the upper end of the iron core, which is close to the second contact, is provided with a third contact mounting, no. three contact matched with No. two contacts are installed on the No. three contact mounting base, No. four contact mounting base are installed on one side of the lower end of the iron core, which is close to the No. one contact, and No. four contact matched with the No. one contact is installed on the No. four contact mounting base.

The two sides of the upper end of the iron core are inverted splayed, and the two sides of the lower end of the iron core are splayed.

The magnetic field induction intensity of the hard magnet is larger than that of the electromagnetic coil.

The utility model has the advantages that: the utility model discloses a single coil bistable relay, when solenoid circular telegram, the relay is in on-state (normally open contact closure), and when solenoid circular telegram outage, the relay continues to be in on-state, and when adding reverse power for solenoid, the relay returns off-state, and when reverse outage, the relay still is in off-state. The bistable relay saves electric energy and reduces the heat productivity of the coil. The utility model discloses the good reliability, sensitivity is high, and simple structure, it is less to occupy the total volume, in addition, when the disconnection, the spring phenomenon can not appear to components and parts in the circuit have been protected.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention during operation;

FIG. 3 is a schematic diagram of the connection of the driving circuit;

in the figure: 1-an iron core; 2-an electromagnetic coil; 3-a magnetizer; 4-second magnetizer; 5-hard magnet; 6-contact mounting base; 7-contact number one; 8-contact mounting base II; 9-contact number two; 10-contact mounting base III; contact number 11-three; 12-contact mounting base No. four; contact number 13-four;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1 to 3, a bistable relay includes an i-shaped iron core 1, and is characterized in that an electromagnetic coil 2 is spirally wound in the middle of the iron core 1, a first concave-shaped magnetizer 3 is arranged on one side of the iron core 1, a second concave-shaped magnetizer 4 is arranged on the other side of the iron core 1, openings of the first magnetizer 3 and the second magnetizer 4 are oppositely arranged, both ends of the first magnetizer 3 and the second magnetizer 4 are respectively connected with a hard magnet 5, N poles of the hard magnets 5 on both ends of the first magnetizer 3 are fixedly connected with the first magnetizer 3, S poles of the hard magnets 5 on both ends of the second magnetizer 4 are fixedly connected with the second magnetizer 4, a first contact mounting seat 6 is arranged on one side of the hard magnet 5 on the lower end of the first magnetizer 3, which is close to the iron core 1, a first contact 7 is arranged on the first contact mounting seat 6, a second contact mounting seat 8 is arranged on one side of the hard magnet 5 on the upper end of the, install No. two contacts 9 on No. two contact mount pads 8, No. three contact mount pads 10 are installed to the one side that iron core 1 upper end is close to No. two contacts 9, install on No. three contact mount pads 10 with No. two contact 9 assorted No. three contacts 11, and No. four contact mount pads 12 are installed to the one side that iron core 1 lower extreme is close to No. one contact 7, install on No. four contact mount pads 12 with No. 7 assorted contacts 13 of a contact.

Two ends of the electromagnetic coil 2 are connected with a driving circuit, and two ends of the electromagnetic coil 2 are named as an A end and a B end respectively.

The driving circuit comprises a power supply unit, a diode D1, a diode D2, an energy storage capacitor C1, an energy storage capacitor C2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a triode Q1 and a triode Q2.

The base electrode of a triode Q1 is grounded through a resistor R2 and an energy storage capacitor C1, the collector electrode of the triode Q1 is grounded through a resistor R3, the collector electrode of a triode Q1 is connected with the base electrode of a triode Q2 through a resistor R4, the emitter electrode of a triode Q2 is grounded, the emitter electrode of a triode Q2 is led out of an end A, the collector electrode of a triode Q2 is led out of an end B, the end A and the end B of an electromagnetic coil 2 are respectively connected with the end A and the end B of a driving circuit, the collector electrode of a triode Q2 is connected with the base electrode of a triode Q1 through a resistor R5, a resistor R1 and a resistor R2 in sequence, a power supply unit is connected with the cathode of a diode D1, the anode of the diode D1 is connected with an energy storage capacitor C1, the cathode of a diode D1 is connected with the, the back of the energy storage capacitor C2 is grounded, the cathode of the diode D2 is connected with the emitter of the triode Q1, and the resistor R1 is connected with the two ends of the diode D1 in parallel.

The two sides of the upper end of the iron core 1 are inverted splayed, and the two sides of the lower end of the iron core 1 are splayed.

The magnetic field induction strength of the hard magnet 5 is larger than that of the electromagnetic coil 2.

The utility model discloses during operation, when the power module exported forward voltage, power supply unit provides the direct current, power supply unit charges for energy storage capacitor C1 through resistance R1, the power at energy storage capacitor C1 both ends can not break suddenly, triode Q1 switches on, power supply unit's electric current is through diode D2, the projecting pole of triode Q1, the base passes through resistance R2 and flows to energy storage capacitor C1, the collector of triode Q1 is the high level, triode Q2 switches on, the collector of triode Q2 is the low level, solenoid 2 is out of work, the voltage of energy storage capacitor C1 increases gradually, when its voltage and the projecting pole voltage difference of triode Q1 are less than 0.7V, triode Q1 ends, the collector of triode Q2 is the high level, as shown in figure 2, solenoid 2 works, iron core 1 deflects owing to take place about the magnetic force, No. three contact 11 contacts 9 contacts with No. two, this moment, No. 7 contacts 13 contacts with No. four, external machinery works, and when power module output reverse voltage, iron core 1 because magnetic force left and right sides takes place to deflect, No. three contact 11 and No. two contact 9 separation, and at this moment, contact 7 and No. four contact 13 separation, drive circuit make supply voltage switch fast, and then iron core 1 can not appear the spring phenomenon to the components and parts in the circuit have been protected.

Because the magnetic poles of the hard magnets 5 at the two ends of the first magnetizer 3 are the same, the magnetic poles of the hard magnets 5 at the two ends of the second magnetizer 4 are the same, when one of the two hard magnets 5 attracts the iron core 1, the other one repels the iron core 1, the utility model has the advantages of strong reliability, high sensitivity, simple structure and small occupied total volume,

the present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. A bistable relay comprises an I-shaped iron core (1), and is characterized in that an electromagnetic coil (2) is spirally wound in the middle of the iron core (1), one side of the iron core (1) is provided with a concave first magnetizer (3), the other side of the iron core (1) is provided with a concave second magnetizer (4), the openings of the first magnetizer (3) and the second magnetizer (4) are oppositely arranged, both ends of the first magnetizer (3) and the second magnetizer (4) are respectively connected with a hard magnet (5), the N pole of the hard magnet (5) at both ends of the first magnetizer (3) is fixedly connected with the first magnetizer (3), the S pole of the hard magnet (5) at both ends of the second magnetizer (4) is fixedly connected with the second magnetizer (4), one side, close to the iron core (1), of the hard magnet (5) at the lower end of the first magnetizer (3) is provided with a first contact mounting seat (6), and a first contact (7) is mounted on the first contact mounting seat (6), hard magnet (5) of No. two magnetizers (4) upper end are close to one side of iron core (1) and are equipped with No. two contact mount pads (8), install No. two contacts (9) on No. two contact mount pads (8), No. three contact mount pads (10) are installed to one side that iron core (1) upper end is close to No. two contacts (9), install on No. three contact mount pads (10) with No. two contacts (9) assorted No. three contacts (11), No. four contact mount pads (12) are installed to one side that iron core (1) lower extreme is close to a contact (7), install on No. four contact mount pads (12) with No. four contacts (13) of a contact (7) assorted.

2. The bistable relay according to claim 1, wherein the iron core (1) has inverted splayed upper ends and inverted splayed lower ends, respectively, of the iron core (1).

3. The bistable relay of claim 1, wherein the magnetic field strength of the hard magnet (5) is greater than the magnetic field strength of the electromagnetic coil (2).