CN216161656U

CN216161656U - Relay contact structure

Info

Publication number: CN216161656U
Application number: CN202121719813.8U
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 a relay contact structure which comprises a movable spring and a static spring, wherein the movable spring is fixedly provided with a movable contact; the mounting assembly comprises a positioning seat, a stable pressing plate and a connecting sliding plate; the stable pressing plate is elastically connected with the connecting sliding plate; according to the contact structure, the movable reed is installed by the installation component, and the stable pressing plate is flexibly connected with the connecting sliding plate, so that the safety of the movable reed can be ensured on the premise of ensuring the installation stability of the movable reed; through the installation component, the installation and the dismantlement of movable contact spring are all convenient, are favorable to the installation use and the dismantlement change of movable contact spring, and the integrality of movable contact spring structure can both be guaranteed to whole installation and the process of dismantling simultaneously, can not cause the movable contact spring to warp.

Description

Relay contact structure

Technical Field

The utility model belongs to the technical field of relays, and particularly relates to a relay contact structure.

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 contact structure is a core component of the relay and mainly comprises a movable contact and a fixed contact, wherein the movable contact is arranged on a movable spring, the fixed contact is arranged on a fixed spring, the movable spring is usually arranged on a yoke and is positioned right above the axial direction of a coil, and when the coil is electrified, electromagnetic attraction force is generated to attract an armature fixed on the movable spring downwards so as to promote the movable contact on the movable spring to be contacted with the fixed contact on the fixed 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.

For a traditional relay, the movable spring is usually fixed on the yoke by screws, and the stability of fixation can be guaranteed, but the movable spring is small and thin, so that the movable spring is easy to deform during installation, the using effect of the relay is affected, and the movable spring is troublesome to replace at a later stage.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a relay contact structure which has the characteristics of convenience in use and easiness in disassembly and assembly.

In order to achieve the purpose, the utility model provides the following technical scheme: a relay contact structure comprises a movable spring and a fixed spring, wherein a movable contact is fixed on the movable spring, a fixed contact is fixed on the fixed spring, the fixed spring is distributed on two sides of the movable contact, the relay contact structure also comprises a yoke and an installation assembly, the installation assembly is installed at the top end of the yoke, the movable spring is installed at the top end of the yoke by utilizing the installation assembly, and the end part of the movable spring is provided with a positioning notch capable of accommodating the installation assembly; the mounting assembly comprises a positioning seat, a stable pressing plate and a connecting sliding plate, an operation cavity capable of accommodating the connecting sliding plate is formed in the positioning seat, the connecting sliding plate is mounted in the connecting sliding plate in a vertically reciprocating manner, and a control assembly is arranged on the positioning seat and used for controlling the connecting sliding plate to move; the two sides of the positioning seat are respectively provided with a sliding hole communicated with the operation cavity, the stable pressing plate penetrates through the sliding holes, the two ends of the stable pressing plate are respectively in interference fit with the two sides of the positioning seat, the bottom surfaces of the two extending ends of the stable pressing plate are respectively fixed with a locking block, and the top surface of the movable spring leaf is provided with a locking groove capable of accommodating the locking block; the stable pressing plate is elastically connected with the connecting sliding plate.

As a preferable technical solution of the present invention, a positioning column is fixed to a top surface of the yoke, and a positioning hole through which the positioning column penetrates is formed in the movable spring.

As a preferred technical scheme of the utility model, the control assembly comprises a threaded column, the threaded column is installed on the positioning seat in a threaded screwing mode, and the bottom end of the threaded column is rotatably connected with the connecting sliding plate through a bearing; and a knob is fixed at the top end of the threaded column.

As a preferred technical scheme of the utility model, the device further comprises two groups of symmetrically distributed telescopic columns and two groups of symmetrically distributed turnover supporting arms, wherein the top ends of the turnover supporting arms are hinged with the connecting sliding plate, the bottom ends of the turnover supporting arms are hinged with the stabilizing pressing plate, the top ends of the telescopic columns are fixedly connected with the connecting sliding plate, the bottom ends of the telescopic columns are fixedly connected with the stabilizing pressing plate, and telescopic springs are sleeved on the telescopic columns.

The coil is arranged on the vertical part of the yoke, and the armature is fixed on the inner face of the movable spring and faces the coil.

As a preferred technical scheme of the present invention, the movable spring is provided with a notch, an inner wall of the notch is an L-shaped limiting blocking piece, a plastic limiting block is fixed on an inner surface of the limiting blocking piece, two symmetrically distributed V-shaped elastic stabilizing pieces are fixed on an end of the base, and the elastic stabilizing pieces and the plastic limiting block are distributed at intervals and clamp the armature.

As a preferred technical scheme of the utility model, the movable spring is also provided with a fabrication hole.

Compared with the prior art, the utility model has the beneficial effects that: according to the contact structure, the movable reed is installed by the installation component, and the stable pressing plate is flexibly connected with the connecting sliding plate, so that the safety of the movable reed can be ensured on the premise of ensuring the installation stability of the movable reed; through the installation component, the installation and the dismantlement of movable contact spring are all convenient, are favorable to the installation use and the dismantlement change of movable contact spring, and the integrality of movable contact spring structure can both be guaranteed to whole installation and the process of dismantling simultaneously, can not cause the movable contact spring to warp.

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

FIG. 3 is a front cross-sectional structural view of the mounting assembly of the present invention;

in the figure: 1. a base; 101. a yoke; 2. a coil; 3. a movable spring plate; 4. an armature; 5. a stationary reed; 6. a movable contact; 7. a stationary contact; 8. mounting the component; 9. positioning holes; 10. a positioning column; 11. a notch; 12. a limiting baffle plate; 13. a fabrication hole; 14. an elastic stabilizing sheet; 15. a plastic stop block; 16. positioning the notch; 17. positioning seats; 18. an operating chamber; 19. stabilizing the pressing plate; 20. a slide hole; 21. a locking block; 22. a locking groove; 23. connecting a sliding plate; 24. a threaded post; 25. a knob; 26. turning over the supporting arm; 27. a telescopic column; 28. a telescoping spring.

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. 1-3, the present invention provides the following technical solutions: a relay contact structure comprises a movable spring 3 and a fixed spring 5, wherein a movable contact 6 is fixed on the movable spring 3, a fixed contact 7 is fixed on the fixed spring 5, the fixed springs 5 are distributed on two sides of the movable contact 6, the relay contact structure also comprises a yoke 101 and an installation assembly 8, the installation assembly 8 is installed at the top end of the yoke 101, the movable spring 3 is installed at the top end of the yoke 101 by utilizing the installation assembly 8, and a positioning notch 16 capable of accommodating the installation assembly 8 is formed in the end part of the movable spring 3; the mounting assembly 8 comprises a positioning seat 17, a stable pressing plate 19 and a connecting sliding plate 23, an operation cavity 18 capable of accommodating the connecting sliding plate 23 is formed in the positioning seat 17, the connecting sliding plate 23 is mounted in the connecting sliding plate 23 in a vertically reciprocating manner, and a control assembly is arranged on the positioning seat 17 and used for controlling the connecting sliding plate 23 to move; the two sides of the positioning seat 17 are both provided with sliding holes 20 communicated with the operation cavity 18, the stable pressing plate 19 penetrates through the sliding holes 20, the two ends of the stable pressing plate 19 are both in interference fit with the two sides of the positioning seat 17, the bottom surfaces of the two extending ends of the stable pressing plate 19 are both fixed with locking blocks 21, and the top surface of the movable spring 3 is provided with locking grooves 22 capable of accommodating the locking blocks 21; the stable pressing plate 19 is elastically connected with the connecting sliding plate 23, when in use, the movable contact 6 on the movable spring 3 can be combined with or disconnected from the fixed contacts 7 on two sides under the elastic action, when the movable spring 3 is installed, the movable spring 3 is arranged at a proper position on the top of the yoke 101, the installation component 8 is embedded into the positioning notch 16, then the control component is utilized to make the connecting sliding plate 23 move downwards, the connecting sliding plate 23 drives the stable pressing plate 19 to move downwards, the stable pressing plate 19 moves along the sliding hole 20, the stable pressing plate 19 presses the movable spring 3 downwards, the installation stability of the movable spring 3 is ensured, the locking block 21 can be embedded into the locking groove 22 at the moment, the installation stability of the movable spring 3 is further improved, the sliding of the movable spring 3 can be avoided, the use reliability of the movable spring 3 is ensured, in addition, because the stable pressing plate 19 is elastically connected with the connecting sliding plate 23, the stable pressing plate 19 is flexible, therefore, the safety of the movable spring plate 3 can be ensured on the premise of ensuring the installation stability of the movable spring plate 3.

Specifically, according to fig. 1, in this embodiment, a positioning column 10 is fixed to the top surface of the yoke 101, a positioning hole 9 through which the positioning column 10 penetrates is formed in the movable spring piece 3, and the mounting position of the movable spring piece 3 is positioned through the positioning column 10 and the positioning hole 9, so that the reliability of the mounting position of the movable spring piece 3 is ensured, the mounting stability of the movable spring piece 3 is further improved, and the movable spring piece 3 can be prevented from sliding.

Specifically, according to fig. 1 and fig. 3, in this embodiment, the control assembly includes a threaded column 24, the threaded column 24 is installed on the positioning seat 17 in a threaded manner, and the bottom end of the threaded column 24 is rotatably connected to the connecting sliding plate 23 by a bearing; the top end of the threaded column 24 is fixed with a knob 25, the threaded column 24 is driven to rotate by rotating the knob 25, the connecting sliding plate 23 moves under the screwing action of the threads, and the operation is very convenient.

Specifically, as shown in fig. 1 and fig. 3, in this embodiment, the foldable support structure further includes two sets of symmetrically distributed telescopic columns 27 and two sets of symmetrically distributed turnover support arms 26, the top end of the turnover support arm 26 is hinged to the connection sliding plate 23, the bottom end of the turnover support arm is hinged to the stabilizing pressure plate 19, the top end of the telescopic column 27 is fixedly connected to the connection sliding plate 23, the bottom end of the telescopic column is fixedly connected to the stabilizing pressure plate 19, a telescopic spring 28 is sleeved on the telescopic column 27, the telescopic column 27 is formed by sleeving two sections of hollow cylindrical members, under the elastic force action of the telescopic spring 28, the telescopic column 27 has elasticity, the elastic connection between the stabilizing pressure plate 19 and the connection sliding plate 23 is realized, in addition, the hinged portion of the turnover support arm 26 and the stabilizing pressure plate 19 can move a certain distance in the horizontal direction, the reliability of turnover of the turnover support arm 26 is ensured, which is shown in fig. 3, and is not described herein again.

Specifically, as shown in fig. 1, in this embodiment, the electromagnetic clutch further includes a base 1, a coil 2, and an armature 4, the yoke 101 is "L" shaped and fixed on the top of the base 1, the stationary spring 5 is fixed on the top of the base 1, the coil 2 is installed on the vertical portion of the yoke 101, the armature 4 is fixed on the inner surface of the movable spring 3 and faces the coil 2, when the coil 2 is energized, an electromagnetic attraction force is generated, the armature 4 fixed on the movable spring 3 is attracted downward, and the movable contact 6 on the movable spring 3 is urged to contact with the stationary contact 7 on the stationary spring 5; when the coil 2 is powered off, the electromagnetic force disappears, and the armature 4 resets upwards under the elastic action of the movable reed 3.

Specifically, as shown in fig. 1 and fig. 2, in this embodiment, a notch 11 is formed in the movable spring 3, an inner wall of the notch 11 is an L-shaped limiting blocking piece 12, a plastic limiting block 15 is fixed on an inner surface of the limiting blocking piece 12, two elastic stabilizing pieces 14 which are symmetrically distributed and are V-shaped are fixed at an end of the base 1, and the elastic stabilizing pieces 14 and the plastic limiting block 15 are distributed at intervals and clamp the armature 4, so that the installation of the armature 4 is further stabilized.

Specifically, according to fig. 1, in this embodiment, the movable reed 3 is further provided with a fabrication hole 13 for reducing the mass of the movable reed 3.

The working principle and the using process of the utility model are as follows: when the contact structure is used, the movable contact 6 on the movable spring 3 can be combined with or disconnected from the fixed contacts 7 on two sides under the elastic action of the movable spring, and when the coil 2 is electrified, electromagnetic attraction force is generated to attract the armature 4 fixed on the movable spring 3 downwards so as to enable the movable contact on the movable spring 3 to be in contact with the fixed contact on the fixed spring 5; when the coil 2 is powered off, the electromagnetic force disappears, and the armature 4 resets upwards under the elastic action of the movable reed 3;

when installing movable contact spring 3, place movable contact spring 3 in the suitable position department at yoke 101 top, make installation component 8 imbed in location breach 16, then utilize control assembly to make and connect slide 23 and move down, it moves down to connect slide 23 to drive stabilizing pressing plate 19, stabilizing pressing plate 19 moves along slide opening 20, make stabilizing pressing plate 19 push down movable contact spring 3, guarantee the stability of movable contact spring 3 installation, locking piece 21 can imbed in locking groove 22 this moment, further improve the stability of movable contact spring 3 installation, can also avoid movable contact spring 3 to slide, guarantee the reliability that movable contact spring 3 used, furthermore, because stabilizing pressing plate 19 with connect slide 23 elastic connection, make stabilizing pressing plate 19 have flexibility, consequently, under the prerequisite of guaranteeing movable contact spring 3 installation stability, also can guarantee movable contact spring 3's safety.

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 a relay contact structure, includes movable contact spring (3) and stationary contact spring (5) be fixed with movable contact (6) on movable contact spring (3) stationary contact spring (7) are fixed with on stationary contact spring (5), just cloth is equallyd divide to the both sides of movable contact (6) has stationary contact spring (5), its characterized in that: the mounting assembly (8) is mounted at the top end of the yoke (101), the movable spring (3) is mounted at the top end of the yoke (101) through the mounting assembly (8), and a positioning notch (16) capable of accommodating the mounting assembly (8) is formed in the end part of the movable spring (3); the mounting assembly (8) comprises a positioning seat (17), a stable pressing plate (19) and a connecting sliding plate (23), an operation cavity (18) capable of accommodating the connecting sliding plate (23) is formed in the positioning seat (17), the connecting sliding plate (23) can be mounted in the connecting sliding plate (23) in a vertically reciprocating manner, and a control assembly is arranged on the positioning seat (17) and used for controlling the connecting sliding plate (23) to move; sliding holes (20) communicated with the operation cavity (18) are formed in the two sides of the positioning seat (17), the stable pressing plate (19) penetrates through the sliding holes (20), the two ends of the stable pressing plate (19) are in interference fit with the two sides of the positioning seat (17), locking blocks (21) are fixed on the bottom surfaces of the two extending ends of the stable pressing plate (19), and locking grooves (22) capable of containing the locking blocks (21) are formed in the top surface of the movable spring piece (3); the stable pressing plate (19) is elastically connected with the connecting sliding plate (23).

2. A relay contact structure according to claim 1, wherein: and a positioning column (10) is fixed on the top surface of the yoke (101), and a positioning hole (9) for the positioning column (10) to penetrate through is formed in the movable spring (3).

3. A relay contact structure according to claim 1, wherein: the control assembly comprises a threaded column (24), the threaded column (24) is installed on the positioning seat (17) in a threaded screwing mode, and the bottom end of the threaded column (24) is rotatably connected with the connecting sliding plate (23) through a bearing; a knob (25) is fixed at the top end of the threaded column (24).

4. A relay contact structure according to claim 1, wherein: still include flexible post (27) and the upset support arm (26) of two sets of symmetric distributions, the top of upset support arm (26) with it is articulated to connect slide (23), the bottom with it is articulated to stabilize clamp plate (19), the top of flexible post (27) with connect slide (23) fixed connection, bottom with stabilize clamp plate (19) fixed connection flexible spring (28) have been cup jointed on flexible post (27).

5. A relay contact structure according to claim 1, wherein: still include base (1), coil (2) and armature (4), yoke (101) are "L" form and fix the top of base (1), static reed (5) are fixed the top of base (1), coil (2) are installed on the vertical portion of yoke (101), armature (4) are fixed movable reed (3) inner face and just to coil (2).

6. A relay contact structure according to claim 5, wherein: the movable spring piece (3) is provided with a notch (11), the inner wall of the notch (11) is an L-shaped limiting blocking piece (12), a plastic limiting block (15) is fixed on the inner surface of the limiting blocking piece (12), two V-shaped elastic stabilizing pieces (14) which are symmetrically distributed are fixed at the end part of the base (1), and the elastic stabilizing pieces (14) and the plastic limiting block (15) are distributed at intervals and clamp the armature (4).

7. A relay contact structure according to claim 1, wherein: the movable reed (3) is also provided with a fabrication hole (13).