CN216161659U

CN216161659U - Improved movable contact spring for relay

Info

Publication number: CN216161659U
Application number: CN202121719814.2U
Authority: CN
Inventors: 廖金安
Original assignee: Shenzhen Jinlifeng Hardware Manufacturing Co ltd
Current assignee: Shenzhen Jinlifeng Hardware Manufacturing Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-04-01
Anticipated expiration: 2031-07-27

Abstract

The utility model belongs to the technical field of relays, and particularly relates to an improved movable reed for a relay, which comprises a movable reed body and a yoke, wherein the movable reed body is arranged on the yoke by using screws, a movable contact mounting hole is formed in the movable reed body, a stable pressing plate is fixed on the top surface of the yoke, and an elastic surface pressing component is fixed on the bottom surface of a horizontal part of the stable pressing plate; the elastic surface pressing assembly comprises a telescopic column, a telescopic spring and a positioning pressing block; according to the movable spring, the elastic surface pressing assembly is arranged, so that the mounting stability of the movable spring is greatly improved, the problem that the movable spring loosens or even falls off due to screw loosening caused by expansion with heat and contraction with cold after long-time use is avoided, and the safety and the reliability of the movable spring in use are ensured; the arrangement of the auxiliary limiting strips and the auxiliary limiting plates guides and limits the moving direction of the movable spring, the moving reliability of the movable spring is guaranteed, and the movable spring is prevented from being inclined.

Description

Improved movable contact spring for relay

Technical Field

The utility model belongs to the technical field of relays, and particularly relates to a movable contact spring for an improved relay.

Background

The relay is an electric control device, when the change of input quantity (exciting quantity) reaches the specified requirement, it makes the controlled quantity produce the predetermined step change in the electric output circuit, it has the interactive relation between the control system (also called input circuit) and the controlled system (also called output circuit), usually applied to the automatic control circuit, it is actually an "automatic switch" which uses small current to control the large current operation, so it plays the role of automatic regulation, safety protection, switching circuit, etc. in the circuit.

The movable spring is a core component of the relay, is usually installed on the yoke and is positioned right above the coil in the axial direction, when the coil is electrified, electromagnetic attraction force is generated, the armature fixed on the movable spring is attracted downwards, and the movable contact on the movable spring is made to be in contact with the static contact on the static spring; when the coil is powered off, the electromagnetic force disappears, and the armature resets upwards under the elastic action of the movable spring or the spring.

When the traditional movable spring leaf is used, the movable spring leaf is usually fixed on a yoke by rivets or screws, and after the movable spring leaf is used for a period of time, the shape of the movable spring leaf can be slightly changed due to expansion caused by heat and contraction caused by cold, so that the rivets or the screws are very easy to loosen, and the installation stability and the use safety of the movable spring leaf are affected.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the improved movable reed for the relay, which has the characteristics of convenience in use and good stability.

In order to achieve the purpose, the utility model provides the following technical scheme: a movable contact spring for an improved relay comprises a movable contact spring body and a yoke, wherein the movable contact spring body is mounted on the yoke by screws, a movable contact mounting hole is formed in the movable contact spring body, a stable pressing plate is fixed on the top surface of the yoke, the longitudinal section of the stable pressing plate is of an inverted L-shaped structure, a positioning notch capable of accommodating the stable pressing plate is formed in the end part of the movable contact spring body, an elastic surface pressing assembly is fixed on the bottom surface of the horizontal part of the stable pressing plate, and a positioning groove corresponding to the elastic surface pressing assembly is formed in the top surface of the movable contact spring body; the elastic surface pressing assembly comprises a telescopic column, a telescopic spring and a positioning pressing block, the telescopic column is fixed to the bottom surface of the horizontal portion of the stabilizing pressing plate, the positioning pressing block is fixed to the bottom end of the telescopic column, the positioning pressing block can be embedded into the positioning groove, and the telescopic spring is sleeved on the telescopic column and located between the positioning pressing block and the horizontal portion of the stabilizing pressing plate.

As a preferred technical scheme of the utility model, two groups of elastic surface pressing components are symmetrically arranged, and two positioning grooves are symmetrically arranged.

As a preferable technical scheme of the utility model, the end face of the positioning pressing block is an inclined plane.

As a preferred technical solution of the present invention, an L-shaped auxiliary limit strip is fixed to a bottom surface of the movable reed body, an L-shaped auxiliary limit plate is fixed to an end of the yoke, a slide hole through which a horizontal portion of the auxiliary limit strip passes is formed in the auxiliary limit plate, and a limit piece is fixed to an extending end of the auxiliary limit strip.

As a preferable technical scheme of the utility model, the movable reed body is also provided with a fabrication hole.

Compared with the prior art, the utility model has the beneficial effects that: according to the movable spring, the elastic surface pressing assembly is arranged, so that the mounting stability of the movable spring is greatly improved, the problem that the movable spring loosens or even falls off due to screw loosening caused by expansion with heat and contraction with cold after long-time use is avoided, and the safety and the reliability of the movable spring in use are ensured; the arrangement of the auxiliary limiting strips and the auxiliary limiting plates guides and limits the moving direction of the movable spring, the moving reliability of the movable spring is guaranteed, and the movable spring is prevented from being inclined.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the elastic surface pressing assembly shown in FIG. 2 according to the present invention;

in the figure: 1. a movable reed body; 2. a yoke; 3. a moving contact mounting hole; 4. a fabrication hole; 5. an auxiliary limiting plate; 6. auxiliary limiting strips; 7. a slide hole; 8. stabilizing the pressing plate; 9. positioning a groove; 10. an elastic surface pressing component; 11. a limiting sheet; 12. a telescopic column; 13. a tension spring; 14. positioning a pressing block; 15. and positioning the notch.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a movable contact for an improved relay comprises a movable contact body 1 and a yoke 2, wherein the movable contact body 1 is mounted on the yoke 2 by screws, a movable contact mounting hole 3 is formed in the movable contact body 1, a stable pressing plate 8 is fixed on the top surface of the yoke 2, the longitudinal section of the stable pressing plate 8 is of an inverted L-shaped structure, a positioning notch 15 capable of accommodating the stable pressing plate 8 is formed in the end part of the movable contact body 1, an elastic surface pressing assembly 10 is fixed on the bottom surface of the horizontal part of the stable pressing plate 8, and a positioning groove 9 corresponding to the elastic surface pressing assembly 10 is formed in the top surface of the movable contact body 1; the elastic surface pressing component 10 comprises a telescopic column 12, a telescopic spring 13 and a positioning pressing block 14, the telescopic column 12 is fixed on the bottom surface of the horizontal part of the stable pressing plate 8, the positioning pressing block 14 is fixed at the bottom end of the telescopic column 12, and the positioning pressing block 14 can be embedded into the positioning groove 9, the telescopic spring 13 is sleeved on the telescopic column 12 and is positioned between the positioning pressing block 14 and the horizontal part of the stable pressing plate 8, when in use, the movable reed body 1 is arranged on the yoke 2 by screws, the telescopic column 12 has elasticity under the elastic force of the telescopic spring 13, the movable reed body 1 is pressed down through the positioning pressing block 14, the stability of connection of the movable reed body 1 and the yoke 2 is improved, the positioning pressing block 14 is embedded into the positioning groove 9, accidental sliding and deviation of the movable reed body 1 can be avoided, the use safety and reliability of the movable reed body 1 are guaranteed, and the telescopic column 12 is formed by sleeving two sections of hollow cylindrical components.

Specifically, according to fig. 1, fig. 2 and fig. 4, in this embodiment, two sets of elastic surface pressing assemblies 10 are symmetrically arranged, two positioning grooves 9 are symmetrically arranged, positioning pressing blocks 14 are embedded in the positioning grooves 9, the telescopic columns 12 have elasticity under the elastic force of the telescopic springs 13, and the movable reed body 1 is pressed down through the positioning pressing blocks 14, so that the connection stability between the movable reed body 1 and the yoke 2 is improved.

Specifically, according to fig. 1, fig. 2 and fig. 4, in this embodiment, the end surface of the positioning pressing block 14 is an inclined surface, when the movable reed body 1 is installed, the movable reed body 1 is pushed backward from the top of the yoke 2 by a certain distance until the stabilizing pressing plate 8 is embedded into the positioning notch 15, and meanwhile, since the end surface of the positioning pressing block 14 is an inclined surface, when the movable reed body 1 applies a force to the inclined surface of the positioning pressing block 14, an upward component force is generated on the positioning pressing block 14, so that the positioning pressing block 14 moves upward, and the positioning pressing block 14 can be reliably embedded into the positioning groove 9 to provide abdication.

Specifically, according to fig. 1 and fig. 3, in this embodiment, the bottom surface of movable reed body 1 is fixed with supplementary spacing 6 that is "L" form, the end fixing of yoke 2 has supplementary limiting plate 5 that is "L" form, and set up the slide opening 7 that supplies supplementary spacing 6 horizontal part to run through on supplementary limiting plate 5, be fixed with spacing piece 11 on the end that stretches out of supplementary spacing 6, movable reed body 1 is when removing in order to realize the function, can drive supplementary spacing 6 and remove, supplementary spacing 6 removes along slide opening 7, spacing piece 11 limits the distance that its removed, it leads and spacing to the moving direction of movable reed body 1, guarantee the reliability that movable reed body 1 removed, avoid movable reed body 1 to be crooked.

Specifically, according to fig. 1 and fig. 2, in this embodiment, a fabrication hole 4 is further formed in the movable reed body 1, so as to reduce the total mass of the movable reed body 1.

The working principle and the using process of the utility model are as follows: when the movable reed is used, the movable reed body 1 is installed on the yoke 2 through screws, the telescopic column 12 has elasticity under the elastic force action of the telescopic spring 13, the movable reed body 1 is pressed down through the positioning pressing block 14, the connection stability of the movable reed body 1 and the yoke 2 is improved, the positioning pressing block 14 is embedded into the positioning groove 9, the movable reed body 1 can be prevented from accidentally sliding and deviating, and the use safety and reliability of the movable reed body 1 are ensured;

the movable reed body 1 can drive the auxiliary limiting strip 6 to move when moving to realize the function, the auxiliary limiting strip 6 moves along the sliding hole 7, the limiting piece 11 limits the moving distance of the movable reed body 1, the moving direction of the movable reed body 1 is guided and limited, the moving reliability of the movable reed body 1 is guaranteed, and the movable reed body 1 is prevented from being inclined.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an improvement formula movable contact spring for relay, includes movable contact spring body (1) and yoke (2), movable contact spring body (1) utilize the screw to install on yoke (2) moving contact mounting hole (3), its characterized in that have been seted up on movable contact spring body (1): a stable pressing plate (8) is fixed on the top surface of the yoke (2), the longitudinal section of the stable pressing plate (8) is of an inverted L-shaped structure, a positioning notch (15) capable of accommodating the stable pressing plate (8) is formed in the end part of the movable reed body (1), an elastic surface pressing component (10) is fixed on the bottom surface of the horizontal part of the stable pressing plate (8), and a positioning groove (9) corresponding to the elastic surface pressing component (10) is formed in the top surface of the movable reed body (1); elastic surface presses subassembly (10) including flexible post (12), expanding spring (13) and location briquetting (14), flexible post (12) are fixed the horizontal part bottom surface of stabilizing the clamp plate (8), location briquetting (14) are fixed the bottom of flexible post (12), just location briquetting (14) can inlay in constant head tank (9), expanding spring (13) cup joint on flexible post (12) and be in location briquetting (14) with between the horizontal part of stabilizing the clamp plate (8).

2. The improved relay movable contact spring according to claim 1, wherein: the elastic surface pressing assemblies (10) are symmetrically provided with two groups, and the positioning grooves (9) are symmetrically provided with two groups.

3. The improved relay movable contact spring according to claim 1, wherein: the end face of the positioning pressing block (14) is an inclined plane.

4. The improved relay movable contact spring according to claim 1, wherein: the bottom surface of movable contact spring body (1) is fixed with supplementary spacing (6) that are "L" form the end fixing of yoke (2) has supplementary limiting plate (5) that are "L" form, just has seted up the confession on supplementary limiting plate (5) slide opening (7) that supplementary spacing (6) horizontal part runs through be fixed with spacing piece (11) on the stretching out of supplementary spacing (6).

5. The improved relay movable contact spring according to claim 1, wherein: the movable reed body (1) is also provided with a fabrication hole (4).