CN111540647B

CN111540647B - Shockproof electromagnetic relay

Info

Publication number: CN111540647B
Application number: CN202010646542.1A
Authority: CN
Inventors: 白雪猛
Original assignee: Beijing Jingwei Vehicle Equipment Co ltd
Current assignee: BEIJING JINGWEI VEHICLE EQUIPMENT Co.,Ltd.
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2020-10-30
Anticipated expiration: 2040-07-07
Also published as: CN111540647A

Abstract

The invention discloses a shockproof electromagnetic relay, which comprises an installation shell, an electromagnet, an armature I, a moving contact and a static contact, wherein the installation shell is a cuboid shell, the electromagnet, the armature I, the moving contact and the static contact are arranged in the installation shell, a guide pillar I and a guide pillar II are vertically arranged in the installation shell, the armature is sleeved on the guide pillar I and the guide pillar II, the armature I is positioned above the electromagnet, the moving contact is arranged at the end part of the armature I, the static contact is positioned below the moving contact, a spring I is sleeved on the guide pillar I and the guide pillar II, one end of the spring I is abutted against the armature I, the other end of the spring I is abutted against the bottom of the installation shell, when a limiting frame moves towards the inner wall far away from the installation shell, the moving contact at the bottom of the armature I can move into a limiting groove and contact with the static contact, and, therefore, the contact stability of the moving contact and the fixed contact is improved, and the normal work of the relay is ensured.

Description

Shockproof electromagnetic relay

Technical Field

The invention relates to the technical field of relays, in particular to a shockproof electromagnetic relay.

Background

The relay is widely applied to household appliances, such as automobiles, transportation mobile equipment air conditioners, color televisions, refrigerators, washing machines and the like; but also in industrial automation controls and instrumentation. At present, mechanical stress of relays in the market and on data has great influence on the relays, and the mechanical stress refers to stress action factors such as vibration, impact and collision; generally, spring plates of an electromagnetic relay are in a cantilever beam structure, natural frequency is low, vibration and impact can cause resonance, pressure of a relay contact is reduced, instantaneous disconnection or shaking of the contact is easily caused, structural damage can be caused in serious cases, a movable armature part can generate misoperation, and reliability of the relay is affected.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a shockproof electromagnetic relay.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

A vibration-proof electromagnetic relay, comprising:

the installation shell is a cuboid shell, the electromagnet, the armature I, the moving contact and the static contact are arranged in the installation shell, a guide pillar I and a guide pillar II are vertically arranged in the installation shell, the armature I is sleeved on the guide pillar I and the guide pillar II and is positioned above the electromagnet, the moving contact is arranged at the end part of the armature I, the static contact is positioned below the moving contact, a spring I is sleeved on the guide pillar I and the guide pillar II, one end of the spring I abuts against the armature I, the other end of the spring I abuts against the bottom of the installation shell, a support rod I and a support rod II are horizontally arranged in the installation shell and are positioned between the moving contact and the static contact, a guide rod I is horizontally arranged on one side of the support rod I, a guide rod II is horizontally arranged on one side of the support rod II, a guide rod I is horizontally arranged on one, The second guide rod is sleeved with a limiting frame, the limiting frame comprises a placing plate and a limiting groove, the limiting groove is of a rectangular frame structure, the limiting groove is located on one side of the placing plate, a moving contact at the bottom of the first armature is located above the placing plate, the limiting groove is close to the inner wall of the installing shell, the first guide rod and the second guide rod are sleeved with a second spring, one end of the second spring is abutted to the limiting frame, the other end of the second spring is abutted to the end portions of the first support rod and the second support rod, and the first guide rod and the second guide rod are connected with a limiting mechanism for pulling the limiting frame to move along the first guide.

As a further improvement of the technical scheme, the pulling and holding limiting mechanism comprises a second armature, a third guide pillar, a fourth guide pillar, a first pull rod and a second pull rod, the third guide pillar and the fourth guide pillar are vertically arranged in the installation shell, the second armature is arranged on the third guide pillar and the fourth guide pillar, a third spring is sleeved on the third guide pillar and the fourth guide pillar, one end of the third spring abuts against the top of the installation shell, the other end of the third spring abuts against the second armature, a first push block and a second push block are arranged on the surface of the second armature, a first sleeve ring is arranged at one end of the first pull rod, a first abutting block is arranged at one end of the first guide rod through the sleeve ring, a first abutting block is arranged at the other end of the first pull rod through the sleeve ring, the first abutting block is in contact with the first push block, a second sleeve ring is arranged at one end of the second pull rod through the sleeve ring, a second abutting block is arranged at, The upper surface of the second pushing block is obliquely arranged, and the bottom surfaces of the first abutting block and the second abutting block are obliquely arranged.

As a further improvement of the technical scheme, the limiting frame is provided with a locking assembly, the locking assembly comprises a locking plate, a first sleeve, a second sleeve, a third guide rod and a fourth guide rod, the locking assembly is installed at the position of the side wall of the limiting frame and is close to the inner wall of the installation shell, the third guide rod and the fourth guide rod are horizontally connected to the top of the limiting frame, the first sleeve and the second sleeve are horizontally arranged on the locking plate, the first sleeve and the second sleeve are respectively sleeved on the third guide rod and the fourth guide rod, the first sleeve and the third guide rod are sleeved with the fourth spring, one end of the fourth spring abuts against the locking plate, the other end of the fourth spring abuts against the end of the third guide rod, the second sleeve and the fourth guide rod are sleeved with the fifth spring, one end of the fifth spring abuts against.

As a further improvement of the technical scheme, the upper surface of the locking plate is obliquely arranged, the locking plate extends out of the wall part of the limiting frame, and when the moving contact at the bottom of the armature moves downwards into the limiting groove, the moving contact is in contact with the inclined surface of the locking plate.

As a further improvement of the technical scheme, the placing plate is provided with a plurality of rollers, and the moving contact is arranged on the rollers.

Compared with the prior art, the invention has the advantages that in the use process of the invention, after the relay is electrified, the electromagnet attracts the armature II to move upwards, the moving contact at the bottom of the armature I can move into the limiting groove and contact with the static contact, the moving contact is positioned in the limiting groove and can avoid the moving contact from shaking, so that the contact stability of the moving contact and the static contact is improved, when the moving contact at the bottom of the armature I moves downwards into the limiting groove, the elastic forces of the spring IV and the spring V push the locking plate to stretch out of the wall part of the limiting frame, so that the locking plate is abutted against the top of the moving contact, the vibration of the moving contact is avoided, the working stability of the relay is improved, and the safety.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the mounting housing of the present invention;

FIG. 3 is a schematic view of an armature installation of the present invention;

FIG. 4 is a schematic view of the first and second armatures of the present invention installed;

FIG. 5 is an installation diagram of the pulling and limiting mechanism of the present invention;

FIG. 6 is a schematic view of the spacing frame of the present invention;

FIG. 7 is a schematic view of a spacing frame of the present invention;

FIG. 8 is a schematic view of a placement board and a limiting groove according to the present invention;

FIG. 9 is a schematic view of the locking assembly of the present invention;

FIG. 10 is a schematic view of the locking plate installation of the present invention.

Labeled as:

10. installing a shell; 110. an electromagnet; 120. an armature I; 130. a moving contact; 140. a first guide post; 150. a second guide post; 160. a first supporting rod; 170. a second supporting rod; 180. a first guide rod; 190. a second guide rod;

20. a limiting frame; 210. placing the plate; 211. a roller; 220. a limiting groove; 230. a locking assembly; 231. a locking plate; 232. a first sleeve; 233. a second sleeve; 234. a third guide rod; 235. a guide rod IV;

30. pulling and holding the limiting mechanism; 310. an armature II; 311. a first push block; 312. a second push block; 320. a third guide pillar; 330. a fourth guide pillar; 340. a first pull rod; 341. a lantern ring I; 342. a first contact block; 350. a second pull rod; 351. a second lantern ring; 352. and a second contact block.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 10, a vibration-proof type electromagnetic relay includes:

the installation shell 10 is a cuboid shell, the electromagnet 110, the first armature 120, the movable contact 130 and the fixed contact are arranged in the installation shell 10, a first guide pillar 140 and a second guide pillar 150 are vertically arranged in the installation shell 10, the first armature 120 is sleeved on the first guide pillar 140 and the second guide pillar 150, the first armature 120 is positioned above the electromagnet 110, the movable contact 130 is arranged at the end part of the first armature 120, the fixed contact is positioned below the movable contact 130, a first spring is sleeved on the first guide pillar 140 and the second guide pillar 150, one end of the first spring is abutted against the first armature 120, the other end of the first spring is abutted against the bottom of the installation shell 10, a first support rod 160 and a second support rod 170 are horizontally arranged in the installation shell 10, the first support rod 160 and the second support rod 170 are positioned between the first support rod 130 and the fixed contact, a first guide rod 180 is horizontally arranged on one side of the first support rod 160, one side of the second support bar 170 is horizontally provided with a second guide rod 190, the first guide rod 180 and the second guide rod 190 are sleeved with a limiting frame 20, the limiting frame 20 comprises a placing plate 210 and a limiting groove 220, the limiting groove 220 is a rectangular frame structure, the limiting groove 220 is positioned at one side of the placing plate 210, the movable contact 130 at the bottom of the first armature 120 is positioned above the placing plate 210, the limiting groove 220 is close to the inner wall of the mounting shell 10, a second spring is sleeved on the first guide rod 180 and the second guide rod 190, one end of the second spring is abutted against the limiting frame 20, the other end of the second spring is abutted against the end parts of the first support rod 160 and the second support rod 170, the first guide rod 180 and the second guide rod 190 are connected with a pulling and holding limiting mechanism 30 for pulling the limiting frame 20 to move along the first guide rod 180 and the second guide rod 190, after the pulling and holding limiting mechanism 30, the movable contact 130 at the bottom of the first armature 120 can move into the limiting groove 220 and contact with the fixed contact.

As shown in fig. 2-5, the pulling and holding limiting mechanism 30 includes a second armature 310, a third guide post 320, a fourth guide post 330, a first pull rod 340, and a second pull rod 350, the third guide post 320 and the fourth guide post 330 are vertically disposed in the mounting housing 10, the second armature 310 is sleeved on the third guide post 320 and the fourth guide post 330, the third guide post 320 and the fourth guide post 330 are sleeved with a third spring, one end of the third spring abuts against the top of the mounting housing 10, and the other end abuts against the second armature 310, the first push block 311 and the second push block 312 are disposed on the surface of the second armature 310, one end of the first pull rod 340 is provided with a first loop 341, one end of the first pull rod 340 is sleeved on the first guide rod 180 through the first loop 341, the other end of the first push block 342 is abutted against the first push block 311, one end of the second pull rod 350 is provided with a second loop 351, and one end of the second pull rod 350 is sleeved on the second guide rod 190 through the second, The other end of the first contact block 352 is provided with a second contact block 352, the second contact block 352 is in contact with the second push block 312, the upper surfaces of the first push block 311 and the second push block 312 are arranged in an inclined mode, the bottom surfaces of the first contact block 342 and the second contact block 352 are arranged in an inclined mode, after the relay is powered on, the electromagnet 110 attracts the second armature 310 to move upwards, then the first push block 311 and the second push block 312 on the surface of the second armature 310 push the first contact block 342 and the second contact block 352 to move, then the first collar 341 and the second collar 351 pull the limiting frame 20 to move towards the inner wall far away from the installation shell 10, when the limiting frame 20 moves towards the inner wall far away from the installation shell 10, the movable contact 130 at the bottom of the first armature 120 can move into the limiting groove 220 and be in contact with the fixed contact, the movable contact 130 is located in the limiting groove 220 and.

As shown in fig. 6-10, in order to further improve the shock resistance of the relay, a locking assembly 230 is disposed on the limiting frame 20, the locking assembly 230 includes a locking plate 231, a first sleeve 232, a second sleeve 233, a third guide rod 234 and a fourth guide rod 235, the locking assembly 230 is mounted at the side wall of the limiting frame 20 and is close to the inner wall of the mounting housing 10, the third guide rod 234 and the fourth guide rod 235 are horizontally connected to the top of the limiting frame 20, the first sleeve 232 and the second sleeve 233 are horizontally disposed on the locking plate 231, the first sleeve 232 and the second sleeve 233 are respectively sleeved on the third guide rod 234 and the fourth guide rod 235, the first sleeve 232 and the third guide rod 234 are sleeved with the fourth spring, one end of the fourth spring abuts against the locking plate 231, the other end of the first sleeve 233 and the fourth guide rod 235 abuts against the end of the third guide rod 234, a fifth spring is sleeved on the second sleeve 233 and the fourth guide rod 235, one, the upper surface of the locking plate 231 is arranged in an inclined manner, the locking plate 231 extends out of the wall of the limiting frame 20, when the movable contact 130 at the bottom of the armature iron one 120 moves downwards into the limiting groove 220, the movable contact 130 is in contact with the inclined surface of the locking plate 231, the locking plate 231 moves towards the direction far away from the limiting groove 220 along the guide rod three 234 and the guide rod four 235, then the movable contact 130 moves into the limiting groove 220 and is in contact with the fixed contact, the elastic force of the spring four and the spring five pushes the locking plate 231 to extend out of the wall of the limiting frame 20, and therefore the locking plate 231 is abutted against the top of the movable contact 130.

More specifically, the placing plate 210 is provided with a plurality of rollers 211, and the moving contact 130 is placed on the rollers 211, so that the friction force between the moving contact 130 and the placing plate 210 can be reduced, and the moving contact 130 can move.

The working principle is as follows:

in the use process of the invention, after the relay is electrified, the electromagnet 110 attracts the armature two 310 to move upwards, then the first push block 311 and the second push block 312 on the surface of the armature two 310 push the first contact block 342 and the second contact block 352 to move, then the first sleeve ring 341 and the second sleeve ring 351 pull the limiting frame 20 to move towards the inner wall far away from the installation shell 10, when the limiting frame 20 moves towards the inner wall far away from the installation shell 10, the movable contact 130 at the bottom of the armature one 120 can move into the limiting groove 220 and contact with the fixed contact, the movable contact 130 is positioned in the limiting groove 220 and can avoid the movable contact 130 from shaking, thereby improving the contact stability of the movable contact 130 and the fixed contact, when the movable contact 130 at the bottom of the armature one 120 moves downwards into the limiting groove 220, the movable contact 130 is in contact with the inclined plane of the locking plate 231, the locking plate 231 moves along the third guide rod 234 and the fourth guide rod 235 towards the direction far away from the, the elastic force of the spring four and the spring five pushes the locking plate 231 to extend out of the wall of the limiting frame 20, so that the locking plate 231 is abutted against the top of the movable contact 130, thereby preventing the movable contact 130 from vibrating.

It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. A vibration-proof electromagnetic relay, comprising:

the installation shell is a cuboid shell, the electromagnet, the armature I, the moving contact and the static contact are arranged in the installation shell, a guide pillar I and a guide pillar II are vertically arranged in the installation shell, the armature I is sleeved on the guide pillar I and the guide pillar II and is positioned above the electromagnet, the moving contact is arranged at the end part of the armature I, the static contact is positioned below the moving contact, a spring I is sleeved on the guide pillar I and the guide pillar II, one end of the spring I abuts against the armature I, the other end of the spring I abuts against the bottom of the installation shell, a support rod I and a support rod II are horizontally arranged in the installation shell and are positioned between the moving contact and the static contact, a guide rod I is horizontally arranged on one side of the support rod I, a guide rod II is horizontally arranged on one side of the support rod II, a guide rod I is horizontally arranged on one, The first guide rod and the second guide rod are connected with a pulling and limiting mechanism for pulling the limiting frame to move along the first guide rod and the second guide rod;

the pulling and holding limiting mechanism comprises an armature II, a guide pillar III, a guide pillar IV, a pull rod I and a pull rod II, the guide pillar III and the guide pillar IV are vertically arranged in the installation shell, the armature II is arranged on the guide pillar III and the guide pillar IV, a spring III is sleeved on the guide pillar III and the guide pillar IV, one end of the spring III abuts against the top of the installation shell, the other end of the spring III abuts against the armature II, a push block I and a push block II are arranged on the surface of the armature II, a lantern ring I is arranged at one end of the pull rod I, one end of the pull rod I is sleeved on the guide rod I through the lantern ring I, a contact block I is arranged at the other end of the guide rod I through the lantern ring I, the contact block I is contacted with the push block I, a sleeve ring II is arranged at one end of the pull rod II, one end of the pull rod II is sleeved on the guide rod II through the lantern ring II, the bottom surfaces of the first abutting block and the second abutting block are obliquely arranged;

the limiting frame is provided with a locking assembly, the locking assembly comprises a locking plate, a first sleeve, a second sleeve, a third guide rod and a fourth guide rod, the locking assembly is installed at the side wall of the limiting frame and is close to the inner wall of the installation shell, the third guide rod and the fourth guide rod are horizontally connected to the top of the limiting frame, the first sleeve and the second sleeve are horizontally arranged on the locking plate, the first sleeve and the second sleeve are respectively sleeved on the third guide rod and the fourth guide rod, the first sleeve and the third guide rod are sleeved with the fourth spring, one end of the fourth spring abuts against the locking plate, the other end of the fourth spring abuts against the end of the third guide rod, the second sleeve and the fourth guide rod are sleeved with the fifth spring, one end of the fifth spring abuts against the locking plate;

the upper surface of the locking plate is obliquely arranged, the locking plate extends out of the wall of the limiting frame, and when the moving contact at the bottom of the armature moves downwards into the limiting groove, the moving contact is in contact with the inclined surface of the locking plate.

2. The electromagnetic relay of claim 1, wherein the mounting plate has a plurality of rollers mounted thereon, and the movable contacts are disposed on the rollers.