CN215896262U

CN215896262U - Relay safe in utilization

Info

Publication number: CN215896262U
Application number: CN202122102405.4U
Authority: CN
Inventors: 吴建安
Original assignee: Zhongshan City Dao Heng Relay Co ltd
Current assignee: Zhongshan City Dao Heng Relay Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-02-22
Anticipated expiration: 2031-09-02

Abstract

The utility model relates to the technical field of relays and discloses a relay safe to use, which comprises a base and a shell arranged on the base, wherein an armature is fixedly connected in the shell, a moving plate is rotatably connected to the armature, the moving plate and the shell are jointly connected with a trigger mechanism, the moving plate and the shell are jointly connected with a contact mechanism, the trigger mechanism comprises an inner core, a controller, a coil, a fixed plate, a magnetic sheet and two magnetic blocks, the inner core is fixedly connected in the shell, the controller is fixedly connected in the shell, the coil is wound on the inner core, two ends of the coil are electrically connected to the controller, and the magnetic sheet is fixedly connected to the position, corresponding to the inner core, of the moving plate. The utility model can ensure that the movable contact is not required to be attracted by electromagnetism when being contacted with the two fixed contacts for a long time, the electromagnetism only has the function of switching the circuit, the coil of the relay can not be electrified for a long time, the power consumption of the relay is lower, the energy is more saved, the heat productivity of the relay is lower, the relay is not easy to damage and the service life is long.

Description

Relay safe in utilization

Technical Field

The utility model relates to the technical field of relays, in particular to a relay safe to use.

Background

The relay is an electric control device, when the change of input quantity meets the specified requirement, the controlled quantity is changed into a preset step change in the electric output circuit, it has the interactive relation between control system and controlled system, usually applied in the automatic control circuit, it is an "automatic switch" which uses small current to control large current operation, so that it can play the functions of automatic regulation, safety protection and switching circuit, etc. in the circuit, the electromagnetic relay always makes the moving contact with normally open contact by means of electromagnetic attraction sheet, when the electromagnetic disappears, the moving sheet makes the moving contact with normally closed contact under the action of resilience force, when the normally open coil needs to be closed for a long time, when the circuit closed time of normally open contact is long, the electromagnetic coil needs to be electrified for a long time, resulting in that the power consumption of relay is increased, it is not energy-saving, the heating value of the relay rises, and is easy to damage, and the normally open circuit of the relay can not be connected into the normal long-time electrified circuit, and has high requirement on the circuit, poor adaptability and difficult popularization.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, when the closing time of a circuit where a normally open contact is located is long, an electromagnetic coil needs to be electrified for a long time, so that the power consumption of a relay is increased, the relay is not energy-saving, the heating value of the relay is increased, the relay is easy to damage, the normally open circuit of the relay cannot be connected to the normally electrified circuit for a long time, the requirement on the circuit is high, the adaptability is poor, and the relay is not easy to popularize.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a relay safe in use comprises a base and a shell arranged on the base, wherein an armature is fixedly connected in the shell, a rotating sheet is rotatably connected on the armature, the rotating sheet and the shell are jointly connected with a trigger mechanism, and the rotating sheet and the shell are jointly connected with a contact mechanism;

trigger mechanism includes inner core, controller, coil, fixed plate, magnetic sheet and two magnetic paths, inner core fixed connection is in the casing, controller fixed connection is in the casing, the coil is convoluteed on the inner core, the both ends electric connection of coil is on the controller, magnetic sheet fixed connection corresponds the position of inner core at the rotor, fixed plate fixed connection is in the one end of rotor, two magnetic path symmetry fixed connection is in the fixed plate and is close to one side of armature, and two the magnetic path setting is close to both ends position at the fixed plate.

Preferably, the contact mechanism comprises two movable contacts, two fixed blades and two fixed contacts, the two movable contacts are symmetrically and fixedly connected to two sides of the movable blade, the two fixed blades are fixedly connected to the base, the two fixed blades are arranged on two sides of the movable blade, the two fixed contacts are respectively and fixedly connected to the corresponding fixed blades, and the fixed contacts are arranged on one side, close to the movable blade, of the fixed blade.

Preferably, the two fixed contacts are electrically connected with a first terminal, the controller is electrically connected with two second terminals, and the two movable contacts are electrically connected with a third terminal.

Preferably, the magnetic sheet and the two magnetic blocks are made of neodymium magnet materials.

Preferably, the four corners of the base are provided with mounting holes.

Preferably, the materials of the fixed contact and the movable contact are brass.

Compared with the prior art, the utility model provides a relay which is safe to use and has the following beneficial effects:

this relay safe in utilization can make movable contact and two stationary contacts contact for a long time and all not need the electromagnetism to attract, and the electromagnetism only is done the switching circuit effect, makes the coil of relay can not be for a long time circular telegram, makes the power consumption of relay lower, and is more energy-conserving, makes calorific capacity of relay lower, and is not fragile, and life is high.

The utility model can make the movable contact with two static contacts for a long time without electromagnetic attraction, and the electromagnetism only acts as a switching circuit, so that the coil of the relay can not be electrified for a long time, the power consumption of the relay is lower, the energy is saved, the heating value of the relay is lower, the relay is not easy to damage, and the service life is long.

Drawings

Fig. 1 is a schematic structural diagram of a relay with safety in use according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: the device comprises a base 1, a shell 2, an armature 3, a movable piece 4, a trigger mechanism 5, an inner core 51, a controller 52, a coil 53, a fixed plate 54, a magnetic sheet 55, a magnetic block 56, a contact mechanism 6, a movable contact 61, a fixed piece 62, a fixed contact 63, a first wiring terminal 7, a second wiring terminal 8, a third wiring terminal 9 and a mounting hole 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, a relay safe in use comprises a base 1 and a shell 2 installed on the base 1, wherein an armature 3 is fixedly connected in the shell 2, a rotor 4 is rotatably connected on the armature 3, the rotor 4 and the shell 2 are jointly connected with a trigger mechanism 5, and the rotor 4 and the shell 2 are jointly connected with a contact mechanism 6;

the trigger mechanism 5 comprises an inner core 51, a controller 52, a coil 53, a fixed plate 54, a magnetic sheet 55 and two magnetic blocks 56, wherein the inner core 51 is fixedly connected in the shell 2, the controller 52 is fixedly connected in the shell 2, the coil 53 is wound on the inner core, two ends of the coil 53 are electrically connected to the controller 52, the magnetic sheet 55 is fixedly connected to the position of the moving sheet 4 corresponding to the inner core 51, the fixed plate 54 is fixedly connected to one end of the moving sheet 4, the two magnetic blocks 56 are symmetrically and fixedly connected to one side of the fixed plate 54 close to the armature 3, the two magnetic blocks 56 are arranged at positions of the fixed plate 54 close to the two ends, the controller 52 supplies direct current to the coil 53, the coil 53 generates a magnetic field, the coil 53 attracts the magnetic sheet 55, the magnetic sheet 55 drives the moving sheet 4 to move, the moving sheet 4 and the moving contact 61 are in contact with a fixed contact 63, meanwhile, the fixed plate 54 inclines, one magnetic block 56 attracts the armature 3 to keep the moving sheet 4 inclined, the coil 53 stops electrifying, the movable contact 61 is contacted with the fixed contact 63, the coil 53 changes the current direction in the same way, the coil 53 repels the magnetic sheet 55, the other magnetic block 56 is adsorbed with the armature 3, when the coil 53 is not electrified, the other movable contact 61 is contacted with the other fixed contact 63, the movable contact 61 can be contacted with the two fixed contacts 63 for a long time without electromagnetic attraction, the electromagnetism only acts as a switching circuit, the coil 53 of the relay can not be electrified for a long time, the power consumption of the relay is lower, the energy is more saved, the heat productivity of the relay is lower, the relay is not easy to damage, and the service life is long.

The contact mechanism 6 comprises two movable contacts 61, two static pieces 62 and two static contacts 63, two movable contacts 61 are symmetrically and fixedly connected with two sides of the movable piece 4, the two static pieces 62 are fixedly connected on the base 1, the two static pieces 62 are arranged on two sides of the movable piece 4, the two static contacts 63 are respectively and fixedly connected with the corresponding static pieces 62, the static contacts 63 are arranged on one side of the static pieces 62 close to the movable piece 4, and thus the two movable contacts 61 can be in contact with the two static contacts 62 to control the switch of two circuits.

The two fixed contacts 63 are electrically connected with a first binding post 7, the controller 52 is electrically connected with two second binding posts 8, and the two movable contacts 61 are electrically connected with a third binding post 9, so that wiring is facilitated.

The magnetic sheet 55 and the two magnetic blocks 56 are made of neodymium magnets, so that the attraction force is better, and the magnetic force is not easy to decline.

Mounting holes 10 are formed in four corners of the base 1, and the base 1 is convenient to mount.

The static contact 63 and the movable contact 61 are made of brass, so that the electric conductivity is better, the resistance is lower, and the heat is not easy to generate.

In the utility model, the controller 52 leads direct current into the coil 53, the coil 53 generates a magnetic field, the coil 53 attracts the magnetic sheet 55, the magnetic sheet 55 drives the moving sheet 4 to move, the moving sheet 4 and the moving contact 61 are contacted with a fixed contact 63, meanwhile, the fixed plate 54 inclines, one magnetic block 56 is attracted with the armature 3, the moving sheet 4 keeps inclining, the coil 53 stops electrifying, the moving contact 61 is contacted with the fixed contact 63, the coil 53 changes the current direction, the coil 53 repels the magnetic sheet 55, the other magnetic block 56 is attracted with the armature 3, when the coil 53 is not electrified, the other moving contact 61 is contacted with the other fixed contact 63, the moving contact 61 and the two fixed contacts 63 can be contacted for a long time without electromagnetic attraction, the electromagnetism only performs the function of switching circuit, the coil 53 of the relay can not be electrified for a long time, the power consumption of the relay is lower, the energy is more saved, and the heating value of the relay is lower, not easy to damage and long service life.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A relay safe in use comprises a base (1) and a shell (2) installed on the base (1), and is characterized in that an armature (3) is fixedly connected in the shell (2), a rotating sheet (4) is rotatably connected to the armature (3), the rotating sheet (4) and the shell (2) are jointly connected with a trigger mechanism (5), and the rotating sheet (4) and the shell (2) are jointly connected with a contact mechanism (6);

trigger mechanism (5) include inner core (51), controller (52), coil (53), fixed plate (54), magnetic sheet (55) and two magnetic blocks (56), inner core (51) fixed connection is in casing (2), controller (52) fixed connection is in casing (2), coil (53) are convoluteed on the inner core, the both ends electric connection of coil (53) is on controller (52), magnetic sheet (55) fixed connection corresponds the position of inner core (51) in rotor (4), fixed plate (54) fixed connection is in the one end of rotor (4), two magnetic blocks (56) symmetry fixed connection is in fixed plate (54) one side that is close to armature (3), and two magnetic blocks (56) set up in fixed plate (54) and are close to both ends position.

2. A safety relay according to claim 1, wherein the contact mechanism (6) comprises two movable contacts (61), two fixed plates (62) and two fixed contacts (63), the two movable contacts (61) are symmetrically and fixedly connected to two sides of the movable plate (4), the two fixed plates (62) are fixedly connected to the base (1), the two fixed plates (62) are arranged on two sides of the movable plate (4), the two fixed contacts (63) are respectively and fixedly connected to the corresponding fixed plates (62), and the fixed contacts (63) are arranged on one side of the fixed plates (62) close to the movable plate (4).

3. A safety relay according to claim 2, wherein a first terminal (7) is electrically connected to each of the two stationary contacts (63), two second terminals (8) are electrically connected to the controller (52), and a third terminal (9) is electrically connected to each of the two movable contacts (61).

4. A safety relay according to claim 1, wherein the magnetic sheet (55) and the two magnetic blocks (56) are made of neodymium magnet.

5. A relay safe in use according to claim 1, wherein the four corners of the base (1) are provided with mounting holes (10).

6. A safety relay according to claim 2, wherein the stationary contact (63) and the movable contact (61) are made of brass.