CN214279877U - Relay - Google Patents

Abstract

The utility model relates to a relay, which comprises a body, wherein the body comprises a shell and an electromagnetic system, the shell is bilaterally symmetrical, the electromagnetic system controls the on-off motion of a contact component, a metal moving contact is fixedly arranged at the central position of the lower part of the shell, relay contacts are fixedly arranged at the lower part of the metal moving contact in a bilateral symmetry manner, metal elastic pieces are respectively and fixedly arranged at the fixed positions at the two sides below the shell, and one end of each metal elastic piece can extend to the position above the corresponding contact; the electromagnetic system comprises a coil and a magnetic module, the fault-tolerant rate of the relay operation is higher through multiple guarantees, the tolerance of the use environment is higher, the operation stability and safety of the equipment are greatly improved, and the service life of the equipment is prolonged.

Description

Relay

Technical Field

The utility model relates to a relay technical field specifically is a relay.

Background

A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount (excitation amount) meets a predetermined requirement. It has an interactive relationship between a control system (also called an input loop) and a controlled system (also called an output loop). It is commonly used in automated control circuits, which are actually a "recloser" that uses low current to control high current operation. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

The coil used by the existing relay is generally one coil and two wires and is used for electrifying and storing electricity, the coil generates magnetism when electrified, the internal structure of the switch device is pulled to turn over, and the switch is sealed or disconnected, but the wires are pulled to be disconnected or the safety problem is caused in the using process of equipment due to severe vibration of the equipment in the operation process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a relay to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a relay, includes the body, and this body includes bilateral symmetry's casing and the electromagnetic system of control contact subassembly switch motion, and this casing outside fixedly connected with metal is made installs the piece for link to each other casing and external equipment, be provided with the hole on this installation piece, one side and body with bolted connection, the opposite side can be used for being connected with external equipment.

The center of the lower part of the shell is fixedly provided with metal moving contacts which are bilaterally symmetrical, the metal moving contacts are key parts for switching on and off of a main loop, the main loop is required to be non-deformable and high in conductivity, materials are copper and above, copper-clad steel plates or composite alloys can be selected, and both hardness and conductivity can be achieved.

The upper side of the metal moving contact is provided with two holes, the metal moving contact is fixedly connected with the mounting plate through the holes by bolts, the lower part of the metal moving contact is fixedly provided with relay contacts in a bilateral symmetry way, metal elastic sheets with elastic deformation capacity are respectively and fixedly arranged at the fixed positions at the two sides below the shell, and one end of each metal elastic sheet extends to the position above the corresponding contact; the contact and the elastic piece are arranged into two sets of bilaterally symmetrical double-bridge structures, namely, one contact device is welded because of overlarge load voltage or load current or other reasons, and the contact device at the other end can be disconnected when the contact device cannot be normally disconnected, so that the effect of controlling a circuit can be achieved, and the safety problems of equipment fire and the like caused by the fact that a single contact device cannot be welded and disconnected are avoided.

The electromagnetic system comprises a coil and a magnetic module, a cover plate can be arranged above the magnetic module, the direct exposure in the environment and the influence on the electromagnetic system are avoided when the electromagnetic system works, a fixing module is arranged in the middle of the shell, the fixing module is connected with the magnetic module in the electromagnetic system, the electromagnetic system normally operates when the electromagnetic system is electrified, and the whole circuit can be controlled to be disconnected and closed.

Preferably, the coil is a double coil, four wires are led out, and the double coil can be switched on in a positive and negative way when the double coil is switched on, namely, the positive attraction and the reverse pushing are carried out simultaneously, so that the equipment can better work.

Preferably, the fixing module can be arranged in a left-right symmetrical shape and shares a central symmetry axis with the shell, and the left side and the right side of the fixing module are respectively provided with a clamping groove which can be connected with the second main body of the magnetic module in a clamping manner.

Preferably, the plastic is made of a high-temperature-resistant material, the high-temperature-resistant material is made by mixing glass fiber and plastic, the glass fiber is used as a framework material, the surface of the framework material is coated with a plastic material, such as nylon and ABS plastic (the ABS plastic is a terpolymer of three monomers, namely acrylonitrile (A), butadiene (B) and styrene (S), the relative contents of the three monomers can be changed at will to prepare various resins), the production cost can be reduced, the service life of the equipment is prolonged, and the problem of equipment softening caused by overhigh operating environment temperature is avoided.

Preferably, the mounting block is made of copper.

Preferably, the metal moving contact and the shell share a central symmetry axis, and the metal moving contact and the shell are arranged in a symmetrical structure, so that the visual effect is more attractive.

Preferably, the magnetic module is composed of a first main body and a second main body, the first main body is an i-shaped permanent magnetic ferrite, the second main body is fixedly connected with the middle part of the first main body, and the second main body wraps the middle part of the i-shaped first main body.

Preferably, the i-shaped permanent magnetic ferrite is transversely placed, the side close to the coil is an N pole, the side far away from the coil is an S pole, when the coil is electrified, one section close to the permanent magnet is the S pole, and the end far away from the permanent magnet is the N pole, so that the two can generate interaction, the magnetic strength and stability are ensured, if the coil is temporarily opened by external force, the coil can automatically reset, meanwhile, L-shaped electrician pure iron is respectively led out from the middle parts of the upper side and the lower side of the transversely placed i-shaped permanent magnet and is used for conducting magnetic lines, and the shape of the magnetic lines of the L-shaped electrician pure iron is consistent with that of the L-shaped electrician pure iron.

Preferably, the second body is of a plastic structure and is snap-connected to the fixed module.

Preferably, the casing contains two bilateral symmetry's electromagnetic system just electromagnetic system all can work independently, and when one of them set of electromagnetic system damaged because operation trouble or other misuse's problems, another set of system can operate independently to improve equipment operating stability and security, extension equipment life.

Compared with the prior art, the utility model provides a relay possesses following beneficial effect:

1. the utility model discloses but one positive anti-expert when applying four lines of twin coil in order to realize the circular telegram to the stability of protective apparatus operation, even bad one, another can ensure normal operating, increases equipment operation security and stability, extension equipment life.

2. The utility model discloses a set up the circular telegram and lie in the coil next door from the magnetic force module who takes magnetism to improve the current sensitivity, can maintain and promote the operating stability of relay, make equipment operation safer.

3. The utility model discloses will magnetic force module device sets up to S utmost point and N utmost point respectively from left to right, draws "L" shape electrician' S pure iron between the two poles of the earth to the guarantee utilizes the gravitation and the structure that links to each other of S utmost point and N utmost point when equipment operation meets strong vibrations or when external environment is abominable, makes equipment whole more have stability, makes equipment operation safer.

4. The utility model discloses can set up the device into double bridge structure, both sides symmetry maps, can replace with another cover when one of them set of electromagnetic system meets the trouble inefficacy, can maintain equipment normal operating, improve equipment operating stability, make equipment operation safer.

5. The utility model discloses change original contact structure, set up to the double contact, this change can effectively prevent equipment operation trouble, and a contact is caught or by fusion welding together when preventing to need the break-off current, and leads to the unable timely disconnection of equipment to cause safety problems such as fire, but another contact of alternative disconnection this moment, can reach the effect of cutting off power supply equally, increases equipment operation security and stability, extension equipment life.

Drawings

FIG. 1 is a schematic diagram showing a structure of a relay in embodiment 1;

FIG. 2 is a schematic diagram showing an internal structure of a relay according to embodiment 1;

fig. 3 is a schematic view of an internal structure of the relay according to embodiment 2;

in the figure: 1. a body; 2. a housing; 3. an electromagnetic system; 4. a metal moving contact; 5. a relay contact; 6. a metal spring sheet; 7. a coil; 8. a magnetic module; 9. a fixed module; 10. a first body; 11. a second body; 12. l-shaped electrician pure iron.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1

Referring to fig. 1 and 2, the present invention provides a relay, which includes a body 1, the body 1 includes a left-right symmetric casing 2 and an electromagnetic system 3 for controlling the switch motion of a contact assembly. A metal moving contact 4 which is bilaterally symmetrical is fixedly arranged at the central position of the lower part of the shell 2, a mounting hole is arranged on the upper side of the metal moving contact 4, the metal moving contact is fixedly connected with the shell through the mounting hole by a bolt, relay contacts 5 are fixedly arranged at the lower part of the metal moving contact 4 bilaterally symmetrically, metal elastic sheets 6 with elastic deformation capacity are respectively and fixedly arranged at the fixed positions of the two sides below the shell 2, and one end of each metal elastic sheet 6 extends to the position above the corresponding contact 5; the contact 5 and the elastic sheet 6 are arranged into two sets which are bilaterally symmetrical in a double-bridge structure.

Electromagnetic system includes coil 7 and magnetic module 8 top sets up the apron, apron and casing bolted connection avoid the during operation directly to expose in the environment and receive the influence, coil 7 is the twin coil, 2 mid portions of casing set up fixed module 9, fixed module 9 is used for connecting electromagnetic system 3, fixed module 9 with magnetic module 8 in the electromagnetic system 3 links to each other, and this fixed module 9 can set up to bilateral symmetry's shape, and with this casing sharing central symmetry axle, this fixed module 9 left and right sides sets up the draw-in groove respectively, and this draw-in groove can be connected with 11 buckle formulas of second main part of magnetic module 8. The shell 2 is made of high-temperature-resistant materials, the high-temperature-resistant materials comprise glass fibers and plastics, the glass fibers are used as framework materials, and the surfaces of the glass fibers are coated with plastic materials (nylon, ABS plastics and the like). The metal moving contact 4 and the shell 2 share a central symmetry axis, and the magnetic module 8 is composed of a first main body 10 and a second main body 11. The first main body is an I-shaped permanent magnetic ferrite, the second main body is fixedly connected with the middle part of the first main body, and the middle part of the first main body in an I shape is wrapped by the second main body. The I-shaped permanent magnetic ferrite is transversely placed, the N pole is arranged on one side close to the coil, the S pole is arranged on one side far away from the coil 7, when the coil 7 is electrified, one section close to the permanent magnet is the S pole, the N pole is arranged on one end far away from the permanent magnet, therefore, the S pole and the N pole can generate interaction, the magnetic strength and the stability are ensured, if the I-shaped permanent magnetic ferrite is temporarily opened by external force, the I-shaped permanent magnetic ferrite can also automatically reset, meanwhile, L-shaped electrician pure iron 12 is respectively led out from the middle parts of the upper side and the lower side of the transversely placed I-shaped permanent magnet and is used for conducting magnetic lines, and the shape of the magnetic lines of the L-shaped electrician pure iron.

The second body 11 is of a plastic structure and is connected with the fixed module 9 in a snap-fit manner.

The casing contains two bilateral symmetry's electromagnetic system just electromagnetic system all can work independently, when one of them set of electromagnetic system damaged because of other misuse's problems of operation, but another set of system independent operation to improve equipment operating stability and security, extension equipment life.

Example 2

Referring to fig. 3, in the embodiment of the present invention, based on the relay described in embodiment 1, the electromagnetic system 3 on any side is removed, and the relay can still work normally.

Except above-mentioned two embodiments, the utility model discloses go back accessible set up the laminating of fritter permanent magnet in casing central authorities below, this fritter permanent magnet acts on the inside electromagnetic system of casing, can make both sides suitable position get rid of the power the biggest, and make the equipment operation safety and stability more.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A relay, comprising a body (1), characterized in that: the body (1) comprises a shell (2) which is bilaterally symmetrical and an electromagnetic system (3) which is fixed on the shell, wherein a metal moving contact (4) which is bilaterally symmetrical is fixedly arranged at the center of the lower part of the shell (2), relay contacts (5) are fixedly arranged at the two ends of the lower part of the metal moving contact (4) in a bilateral symmetry manner, metal elastic pieces (6) are fixedly arranged at the two sides below the shell (2) respectively, and one end of each metal elastic piece (6) extends to the position above the corresponding relay contact (5);

the electromagnetic system (3) comprises a coil (7) fixed on the shell (2) and a magnetic module (8) fixed beside the coil (7);

and a fixing module (9) is arranged in the middle part of the shell (2), and the fixing module (9) is connected with the magnetic module (8).

2. A relay according to claim 1, wherein: the coil (7) is a double coil.

3. A relay according to claim 1, wherein: the shell (2) is made of high-temperature-resistant materials.

4. A relay according to claim 3, wherein: the high-temperature resistant material is prepared by mixing glass fiber and plastic, wherein the plastic comprises ABS plastic and nylon.

5. A relay according to claim 1, wherein: the metal moving contact (4) and the shell (2) share a central symmetry axis.

6. A relay according to any one of claims 1-5, characterized in that: the magnetic module (8) comprises a first body (10) and a second body (11).

7. A relay according to claim 6, wherein: the first main body (10) is an I-shaped permanent magnetic ferrite, and the second main body (11) is fixedly connected with the middle part of the first main body (10).

8. A relay according to claim 7, wherein: the I-shaped permanent magnetic ferrite is transversely placed, and L-shaped electrician pure iron (12) is respectively led out from the middle parts of the upper side and the lower side of the I-shaped permanent magnetic ferrite.

9. A relay according to claim 6, wherein: the second main body (11) is of a plastic structure and is connected with the fixed module (9) in a buckling mode.

10. A relay according to claim 1, wherein: the shell (2) comprises two electromagnetic systems (3) which are symmetrical left and right.

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