CN220306176U

CN220306176U - Auxiliary contact connecting mechanism of contactor

Info

Publication number: CN220306176U
Application number: CN202321922210.7U
Authority: CN
Inventors: 刘伦; 周月英; 杨忠富; 郑远威; 陈拓; 刘振武; 章仕斌
Original assignee: Zhejiang People Ele Appliance Co ltd
Current assignee: Zhejiang People Ele Appliance Co ltd
Priority date: 2023-07-19
Filing date: 2023-07-19
Publication date: 2024-01-05
Anticipated expiration: 2033-07-19

Abstract

The utility model discloses an auxiliary contact connecting mechanism of a contactor, which comprises a mechanism shell, a driving assembly and a push rod piece, wherein two swing arms are rotationally connected and arranged in the mechanism shell, two hook parts are symmetrically arranged at the upper parts of the two swing arms, two driving holes are symmetrically arranged at the lower parts of the two swing arms, the push rod piece and an armature structure are arranged in a linkage way and are connected in the two driving holes in an extending way, the two swing arms are driven to rotate relatively by the reciprocating motion of the push rod piece in the two driving holes, so that the two hook parts are driven to ascend or descend, the purpose of on-off operation is realized by driving an auxiliary contact, the movement distance of the two hook parts is obviously smaller, the installation requirement of the auxiliary contact with smaller contact stroke can be just met, the auxiliary contact connecting mechanism can realize the connection of the auxiliary contact between different strokes and a main contact system, the cost is saved, the installation and the use performance of a product is improved.

Description

Auxiliary contact connecting mechanism of contactor

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to an auxiliary contact connecting mechanism of a contactor.

Background

The contactor is used as a control electrical appliance with large quantity and wide range, is mainly used in a control circuit, is remotely connected and disconnected, controls the starting, stopping, running and the like of a motor, and mainly comprises a base, a fixed contact, a moving contact, an electromagnetic coil, an armature, an arc extinguishing cover and an electromagnetic coil, wherein after the electromagnetic coil is electrified, the armature is attracted under the electromagnetic action, and the moving contact is directly or through lever transmission to be in contact with the fixed contact, so that the circuit is connected; after the electromagnetic coil is powered off, the armature automatically returns under the action of the return spring, commonly called release, so that the movable contact and the static contact are separated, and circuit breaking is realized.

The auxiliary contact of the alternating current contactor is generally directly connected with the main contact system, is arranged at the top of the alternating current contactor and is synchronous with the main contact system, the auxiliary contact is suitable for contactor products with smaller rated current, and for some alternating current contactor products with larger current specifications, the main contact stroke is larger, and the stroke of the general auxiliary contact is smaller, so that the auxiliary contact cannot be directly connected with the main contact system, otherwise, the contact mechanism is blocked, and therefore, a new auxiliary contact needs to be designed for being matched with the alternating current contactor.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the problems that in the prior art, the main contact stroke of the contactor is larger, and the stroke of the common auxiliary contact is smaller, so that the auxiliary contact cannot be directly connected with the main contact system.

In order to solve the technical problem, the utility model provides an auxiliary contact connecting mechanism of a contactor, wherein the contactor comprises an armature structure which moves up and down in a reciprocating manner, and the auxiliary contact connecting mechanism comprises:

the mechanism shell is arranged on one side of the contactor body, and the auxiliary contact is arranged at the top of the mechanism shell;

the driving assembly comprises two swing arms which are rotatably connected and arranged in the mechanism shell, two hook parts which are symmetrically arranged at the upper parts of the two swing arms respectively, and two driving holes which are symmetrically arranged at the lower parts of the two swing arms respectively, wherein the two hook parts extend out of the top of the mechanism shell and are used for connecting auxiliary contacts, and part of the two driving holes are overlapped when the two swing arms relatively rotate;

the push rod piece is arranged on the armature structure in a linkage way, and one end of the push rod piece penetrates into the mechanism shell and is connected with the two driving holes; the push rod piece drives the two swinging arms to relatively rotate when moving between the two ends of the two driving holes so as to drive the two hook parts to ascend or descend at the top of the mechanism shell.

As a preferred solution, the two oscillating arms are arranged symmetrically with respect to the rotation center of both.

As a preferable scheme, two rotating holes are oppositely arranged at the top parts of the two swinging arms, and a rotating shaft penetrating through the two rotating holes is arranged in the mechanism shell, so that the two swinging arms can relatively rotate around the rotating shaft by a certain angle.

As a preferable mode, the swing arm includes an upper arm lever and a lower arm lever extending at an angle with respect to each other with the rotation hole as a rotation center, and the hook portion is provided on one end of the upper arm lever.

As a preferable scheme, the driving hole is extended and arranged on the lower arm rod, and comprises an upper port and a lower port which are staggered up and down, and a sliding hole section which is obliquely connected with the upper port and the lower port; the push rod piece drives the two hook parts to do ascending motion when moving to the upper port, and drives the two hook parts to do descending motion when moving to the lower port.

As a preferable scheme, the hook part is connected with the upper arm rod to form an L-shaped structure, and the hook part comprises two opposite L-shaped hooks and a limiting groove formed between the two L-shaped hooks.

As a preferable scheme, limit stops are respectively arranged on the side surfaces of the two swing arms, and a convex rib structure is connected between the limit stops and the hook part.

As a preferred scheme, the push rod piece is fixed in the jack formed by the armature structure, and a strip hole for the push rod piece to penetrate is formed in the side face of the mechanism shell.

As a preferable scheme, the top of the mechanism shell is provided with two through holes for the two hook parts to extend out, and positioning components for positioning and installing auxiliary contacts are respectively arranged on two sides of the two through holes.

As a preferred embodiment, the mechanism housing is mounted on one side of the contactor body by a screw structure or a snap structure or a rivet structure.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

1. according to the auxiliary contact connecting mechanism provided by the utility model, the two swinging arms which are rotationally connected are arranged in the mechanism shell, the two hook parts and the two driving holes are respectively symmetrically arranged at the upper part and the lower part of the two swinging arms, the auxiliary contact is arranged at the top of the mechanism shell and connected with the hook parts, and the push rod piece which is arranged in linkage with the armature structure is arranged in the two driving parts in a penetrating way.

2. In the auxiliary contact connecting mechanism provided by the utility model, the swinging arm comprises an upper arm rod and a lower arm rod which extend at an angle, one end of the upper arm rod is provided with a hook part, the lower arm rod is provided with a driving hole in an extending way, the driving hole comprises an upper port and a lower port which are arranged in a staggered way up and down, and a sliding hole section which is obliquely connected with the upper port and the lower port, so that the swinging arm can be pushed to rotate when the push rod piece slides in the driving hole, the linear motion of the push rod piece is converted into the rotary motion of the swinging arm, specifically, when the push rod piece moves to the upper ports of the two driving holes, the two hook parts are driven to do ascending motion, and when the push rod piece moves to the lower ports of the two driving holes, the two hook parts are driven to do descending motion, and the reciprocating motion is performed, so that the auxiliary contact is driven by the hook parts to achieve the switching operation of a normally open position and a normally closed position.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic perspective view of an auxiliary contact connection mechanism of the contactor of the present utility model;

FIG. 2 is a schematic plan view of an auxiliary contact connection mechanism of the contactor of the present utility model;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic view of the structure within the mechanism housing of the present utility model;

FIG. 5 is a schematic view of the two drive arms shown in FIG. 4;

fig. 6 is a schematic structural view of the driving arm of the present utility model.

Reference numerals illustrate: 1. a mechanism housing; 2. a swing arm; 21. a rotation hole; 22. an upper arm lever; 23. a lower arm lever; 24 limit stops; 25. a convex rib structure; 3. a hook part; 4. a drive hole; 41. an upper port; 42. a lower port; 43. a slide hole section; 5. a pushing rod piece; 6. a rotating shaft; 7. a positioning assembly; 8. a contactor body; 9. armature structure.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

The present embodiment provides an auxiliary contact connection mechanism of a contactor as shown in fig. 1 to 6, the contactor including an armature structure 9 that reciprocates up and down, comprising:

a mechanism housing 1 mounted on one side of the contactor body 8, and auxiliary contacts provided on the top of the mechanism housing 1 (auxiliary contacts are not shown in the drawing);

the driving assembly comprises two swing arms 2 which are rotatably connected and arranged in the mechanism shell 1, two hook parts 3 which are symmetrically arranged at the upper parts of the two swing arms 2 respectively, and two driving holes 4 which are symmetrically arranged at the lower parts of the two swing arms 2 respectively, wherein the two hook parts 3 extend out of the top of the mechanism shell 1 and are used for connecting auxiliary contacts, and when the two swing arms 2 rotate relatively, a part of the two driving holes 4 are overlapped;

the push rod piece 5 is arranged on the armature structure 9 in a linkage way, and one end of the push rod piece penetrates the mechanism shell 1 and is connected in the two driving holes 4; the push rod piece 5 drives the two swinging arms 2 to relatively rotate when moving between the two ends of the two driving holes 4 so as to drive the two hook parts 3 to ascend or descend at the top of the mechanism shell 1.

The above embodiment is a core technical scheme of this embodiment, according to the mechanism housing 1 is provided with two swinging arms 2 that rotate and link, the upper and lower parts of two swinging arms 2 are respectively equipped with two couple portions 3 and two drive holes 4 symmetrically, install the auxiliary contact at the mechanism housing 1 top and couple portions 3 and realize being connected, and the push rod piece 5 that links the setting with armature structure 9 is worn to establish in two drives, when armature structure 9 drives the contact support and do the up-and-down movement in the contactor, can be through push rod piece 5 reciprocating motion in two drive holes 4 in order to drive two swinging arms 2 and do relative rotation, thereby drive two couple portions 3 and do the purpose that rises or descends with the drive auxiliary contact and realize the on-off switch, the design benefit is that is, with armature structure and push rod piece's linear motion change into the rotary motion of two swinging arms, and the motion distance of two couple portions is obviously little, can satisfy the auxiliary contact installation demand that the contact stroke is less, the auxiliary contact coupling mechanism who adopts this technical scheme can realize that the auxiliary contact between different contact and the main contact is just in order to use the new design to install the auxiliary contact, the additional contact is suitable for use widely to use the product, the cost is saved.

The following describes the specific arrangement of the swing arm in detail with reference to fig. 3 to 6:

the two rotating holes 21 are formed in the tops of the two swing arms 2 oppositely, the rotating shaft 6 penetrating through the two rotating holes 21 is arranged in the mechanism shell 1, the two swing arms 2 can rotate around the rotating shaft 6 relatively by a certain angle, the two swing arms 2 are connected in an X-shaped structure in a rotating mode, therefore, the rotating holes 21 are the rotating centers of the two swing arms 2, the two swing arms 2 are symmetrically arranged relative to the rotating centers of the two swing arms, two auxiliary contacts can be installed at the top of the mechanism shell 1 in a setting mode, and the two auxiliary contacts can be triggered to realize on-off actions when the two swing arms are driven to rotate relatively through the push rod piece.

Further preferably, the swing arm 2 includes an upper arm 22 and a lower arm 23 that extend at a certain angle with respect to each other with the rotation hole 21 as a rotation center, the hook portion 3 is disposed at one end of the upper arm 22, the driving hole 4 is disposed at the lower arm 23 in an extending manner, the driving hole 4 includes an upper port 41 and a lower port 42 that are disposed in a vertically staggered manner, and a sliding hole section 43 that connects the upper port 41 and the lower port 42 in an inclined manner, and since the push rod 5 moves linearly up and down along with the armature structure 9, the extending path of the driving hole 4 is inclined and bent, the push rod 5 can push the swing arm 2 to rotate when sliding in the driving hole 4, so as to convert the linear motion of the push rod into the rotational motion of the swing arm. Specifically, when the push rod piece 5 moves to the upper ports 41 of the two driving holes, the two hook parts 3 are driven to do ascending motion; and when the push rod piece 5 moves to the lower ports 42 of the two driving holes, the two hook parts 3 are driven to move downwards, and the auxiliary contact is driven by the hook parts 3 to realize switching operation of a normally open position and a normally closed position in a reciprocating manner.

In order to reliably realize the installation connection of the auxiliary contact on the mechanism shell, as shown in fig. 3-5, two through holes which can be used for extending out of the two hook parts 3 are formed in the top of the mechanism shell 1, the hook parts 3 are connected with the upper arm rod 22 to form an L-shaped structure, the hook parts 3 comprise two opposite L-shaped hooks and a limiting groove formed between the two L-shaped hooks, and the bottom of the auxiliary contact is provided with a contact rod inserted in the limiting groove, so that the installation connection between the hook parts and the auxiliary contact is realized, and in addition, positioning assemblies 7 used for positioning and installing the auxiliary contact are respectively arranged on two sides of the two through holes, and are composed of a plurality of positioning clamping blocks and positioning clamping grooves, so that the auxiliary contact can be limited to slide back on the mechanism shell through positioning cooperation between the positioning assemblies and the auxiliary contact, and the installation stability of the auxiliary contact on the top of the mechanism shell is ensured. In this embodiment, the two swing arms 2 can be connected with the auxiliary contacts through the hook portions in a mounting manner, and can also be connected with other accessory modules hung on the sides in a mounting manner, so that the application range is wide.

As shown in fig. 5, limit stops 24 are respectively arranged on the side surfaces of the two swing arms 2, the rotation opening range of the two swing arms 2 can be limited by the limit stops 24, a convex rib structure 25 is connected between the limit stops 24 and the hook part 3, the structural strength of the swing arms 2 can be improved by the convex rib structure 25, and the structural stability of the swing arms is ensured.

In this embodiment, the mechanism housing 1 and the contactor body 8 are mounted in a plurality of manners, and may be mounted on one side surface of the contactor body 8 by a screw structure, a fastening structure, or a rivet structure, so that the mounting structure is simple, and the mounting and dismounting of the mechanism housing 1 are also facilitated. The push rod piece 5 is fixed in a jack formed by the armature structure 9, so that linkage fit between the push rod piece 5 and the armature structure 9 is realized, the armature structure is composed of an armature body and a contact support, a plurality of moving contacts are arranged on the contact support, a strip hole for the push rod piece 5 to penetrate is formed in the side face of the mechanism shell 1, the push rod piece is given way through the strip hole for up-and-down displacement of the push rod piece, and connection fit between the push rod piece and two swing arms is realized.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. An auxiliary contact connection mechanism of a contactor, the contactor comprising an armature structure (9) which reciprocates up and down, characterized in that it comprises:

the mechanism shell (1) is arranged on one side of the contactor body (8), and the auxiliary contact is arranged at the top of the mechanism shell (1);

the driving assembly comprises two swing arms (2) which are rotatably connected and arranged in the mechanism shell (1), two hook parts (3) which are symmetrically arranged at the upper parts of the two swing arms (2) respectively, and two driving holes (4) which are symmetrically arranged at the lower parts of the two swing arms (2) respectively, wherein the two hook parts (3) extend out of the top of the mechanism shell (1) and are used for connecting auxiliary contacts, and the two driving holes (4) are partially overlapped when the two swing arms (2) rotate relatively;

the push rod piece (5) is arranged on the armature structure (9) in a linkage way, and one end of the push rod piece penetrates the mechanism shell (1) and is connected in the two driving holes (4); the push rod piece (5) drives the two swing arms (2) to relatively rotate when moving between the two ends of the two driving holes (4) so as to drive the two hook parts (3) to ascend or descend at the top of the mechanism shell (1).

2. The auxiliary contact connection mechanism of the contactor according to claim 1, wherein: the two swing arms (2) are symmetrically arranged about the rotation center of the two swing arms.

3. The auxiliary contact connection mechanism of the contactor according to claim 2, wherein: the two swinging arms (2) are provided with two rotating holes (21) which are oppositely arranged at the top parts, and a rotating shaft (6) which penetrates through the two rotating holes (21) is arranged in the mechanism shell (1), so that the two swinging arms (2) can rotate around the rotating shaft (6) for a certain angle.

4. The auxiliary contact connection mechanism of the contactor according to claim 3, wherein: the swing arm (2) comprises an upper arm rod (22) and a lower arm rod (23) which take the rotation hole (21) as a rotation center and extend at a certain angle, and the hook part (3) is arranged on one end of the upper arm rod (22).

5. The auxiliary contact connection mechanism of the contactor according to claim 4, wherein: the driving hole (4) is arranged on the lower arm rod (23) in an extending mode and comprises an upper port (41) and a lower port (42) which are arranged in a staggered mode up and down, and a sliding hole section (43) which is obliquely connected with the upper port (41) and the lower port (42); the push rod piece (5) drives the two hook parts (3) to move upwards when moving to the upper port (41), and drives the two hook parts (3) to move downwards when moving to the lower port (42).

6. The auxiliary contact connection mechanism of the contactor according to claim 5, wherein: the hook part (3) is connected with the upper arm rod (22) to form an L-shaped structure, and the hook part (3) comprises two opposite L-shaped hooks and a limiting groove formed between the two L-shaped hooks.

7. The auxiliary contact connection mechanism of the contactor according to claim 6, wherein: limit stops (24) are respectively arranged on the side surfaces of the two swing arms (2), and a convex rib structure (25) is connected between the limit stops (24) and the hook part (3).

8. The auxiliary contact connection mechanism of any one of claims 1-7, wherein: the push rod piece (5) is fixed in an insertion hole formed by the armature structure (9), and a strip hole for the push rod piece (5) to penetrate is formed in the side face of the mechanism shell (1).

9. The auxiliary contact connection mechanism of the contactor according to claim 8, wherein: the top of the mechanism shell (1) is provided with two through holes for the two hook parts (3) to extend out, and positioning components (7) for positioning and installing auxiliary contacts are respectively arranged on two sides of the two through holes.

10. The auxiliary contact connection mechanism of the contactor according to claim 9, wherein: the mechanism housing (1) is mounted on one side of the contactor body (8) by a screw structure or a snap structure or a rivet structure.