CN219696320U

CN219696320U - Isolation switch

Info

Publication number: CN219696320U
Application number: CN202321096489.8U
Authority: CN
Inventors: 黄奥
Original assignee: Wenzhou Keyu Electric Co ltd
Current assignee: Wenzhou Keyu Electric Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-09-15
Anticipated expiration: 2033-05-06

Abstract

The utility model provides an isolating switch, comprising: a shell provided with a static contact; the handle is rotatably arranged on the shell and is connected with the energy storage piece through a connecting rod; the indicating piece is movably arranged on the shell and is provided with a first position which is matched and locked with the contact support and a second position which is driven by the handle and unlocked with the contact support; the contact support is movably arranged on the shell through a first elastic piece and is provided with a contact bridge; the energy storage part is movably arranged on the shell, and a second elastic part is arranged between the energy storage part and the contact support. When the contact support is locked by the indicating piece and cannot move downwards, the energy storage piece moves downwards relative to the contact support, so that the second elastic piece is extruded to store energy; then the handle can drive the indicating piece and the unblock of contact support, and the energy is released to the second elastic component, and the contact bridge of drive contact support moves towards the static contact direction fast to realize quick switch-on, just so be difficult for producing the electric arc, prolonged the life of switch.

Description

Isolation switch

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to an isolating switch.

Background

The miniature isolating switch is suitable for power distribution and control loops with the alternating current of 50Hz/60Hz and the rated working voltage of 220/380V or below, and is mainly used as a main switch of a terminal electric appliance.

The isolating switch mainly comprises a shell, an operating mechanism, a moving contact and a fixed contact, wherein the operating mechanism is used for driving the moving contact to be in contact with the fixed contact or be separated from the fixed contact to be disconnected, the existing isolating switch has the defects that the switching-on time of the operating mechanism is long, electric arcs are easy to generate between the moving contact and the fixed contact, the electric arcs are easy to burn the contact, the isolating switch is disabled, and the service life of a product is shortened.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defects of long opening and closing time and short service life in the prior art, thereby providing the isolating switch with long service life.

The utility model provides an isolating switch which comprises a shell, a handle, an indicating piece, a contact support and an energy storage piece, wherein a fixed contact is fixedly arranged on the shell; the handle is rotatably arranged on the shell and is connected with the energy storage piece through the connecting rod; the indicating piece is movably arranged on the shell and is provided with a first position which is matched and locked with the contact support and a second position which is driven by the handle and is unlocked with the contact support; the contact support is movably arranged on the shell through a first elastic piece, and a contact bridge is arranged on the contact support; the energy storage piece is movably mounted on the shell, a second elastic piece is arranged between the energy storage piece and the contact support, and the second elastic piece is in an energy storage state of being extruded by the energy storage piece after the contact support and the indicating piece are locked in a matched mode, and in an energy release state of being unlocked by the contact support and the indicating piece and driving the contact support to move towards a closing direction.

The locking structure comprises a first lug arranged on the indicating piece and a second lug arranged on the contact support and capable of being matched with and propped against the first lug.

The handle and be equipped with the cooperation structure between the indicator, the cooperation structure is including locating drive piece on the handle, and locate on the indicator, with the third lug that the drive piece supported.

The driving block is provided with a first jack for inserting one end of the connecting rod.

The indicator is movably arranged on the shell through a third elastic piece, one end of the third elastic piece is propped against the shell, the other end of the third elastic piece is propped against the indicator, and the third elastic piece is suitable for applying elastic acting force moving towards the first position direction to the indicator.

And a stop block which is arranged on the shell and abuts against the indicator so as to keep the indicator at the first position.

The energy storage piece is movably mounted on the contact support, the contact support is provided with a mounting cavity, side openings formed in two sides of the mounting cavity, the energy storage piece and the contact bridge are mounted at the top and the bottom of the mounting cavity respectively, and movable contacts at two ends of the contact bridge extend out from the corresponding side openings.

And the two sides of the energy storage piece are provided with sliding blocks which extend into the corresponding side openings and can move up and down relative to the side openings.

The second elastic piece is a spring, the energy storage piece is provided with a positioning block which is in positioning connection with one end of the spring, and the positioning block is provided with a guide inclined surface which is arranged on one side of the positioning block and used for the spring to be inserted into, and a blocking surface which is arranged on the other side of the positioning block.

The top of casing is equipped with the trompil, the top surface of indicator be equipped with the instruction portion that the trompil corresponds the setting.

The technical scheme of the utility model has the following advantages:

1. the isolating switch comprises a handle, an indicating piece, a contact support and an energy storage piece, wherein in the closing process, when the contact support is locked by the indicating piece and cannot move downwards, the energy storage piece moves downwards relative to the contact support, so that the second elastic piece is extruded to store energy; then the handle can drive the indicating piece and the unblock of contact support, and the energy is released to the second elastic component, and the contact bridge of drive contact support moves towards the static contact direction fast to realize quick switch-on, just so be difficult for producing the electric arc, prolonged the life of switch.

2. According to the isolating switch provided by the utility model, the matching structure is arranged between the handle and the indicating piece and comprises the driving block arranged on the handle and the third lug arranged on the indicating piece and propped against the driving block, in the switching-on process, the handle rotates clockwise, and the driving block on the handle drives the indicating piece to move through the third lug, so that the first lug of the indicating piece is separated from the second lug on the contact support, and the unlocking is realized.

3. The isolating switch provided by the utility model has the advantages that the positioning block which is in positioning connection with one end of the spring is arranged on the energy piece, the positioning block is provided with the guide inclined surface arranged on one side of the positioning block, and the blocking surface arranged on the other side of the positioning block, so that the spring can be inserted along the guide inclined surface, and the assembly with the positioning block is realized, the assembly is rapid and convenient, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a disconnector of the present utility model;

FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;

FIG. 3 is a schematic diagram of a structure of an isolating switch;

FIG. 4 is a perspective view of the disconnecting switch operating mechanism;

FIG. 5 is a schematic diagram of an exploded construction of the disconnecting switch operating mechanism;

FIG. 6 is a schematic diagram of an exploded structure of the energy storage member and the second elastic member;

fig. 7 is a perspective view of the housing.

Reference numerals illustrate: 1. a housing; 2. a stationary contact; 3. a handle; 4. a connecting rod; 5. an energy storage member; 6. an indicator; 7. a contact holder; 8. a contact bridge; 10. a first bump; 11. a first elastic member; 12. a second elastic member; 13. a third elastic member; 14. a second bump; 15. a driving block; 16. a third bump; 17. a first jack; 18. a stop block; 19. a mounting cavity; 20. a side opening; 21. a slide block; 22. a positioning block; 23. a guide slope; 24. a blocking surface; 25. opening holes; 26. an instruction unit; 27. and a sliding groove.

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 the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Examples

This embodiment provides an isolating switch, as shown in fig. 1 and 3, comprising a housing 1, a handle 3, a connecting rod 4, an indicator 6, a contact support 7 and an energy storage 5.

The housing 1 has two stationary contacts 2 fixed to both sides of a contact holder 7. As shown in fig. 7, a chute 27 for sliding the indicator 6 laterally and a stopper 18 adapted to hold the indicator 6 in the first position (i.e., the switch is in the open state) are formed on the inner wall of the housing 1. The top of the housing 1 is provided with an opening 25.

The handle 3 is rotatably installed on the housing 1, a matching structure is arranged between the handle 3 and the indicator 6, as shown in fig. 4, the matching structure comprises a driving block 15 arranged on the handle 3, and a third bump 16 arranged on the indicator 6 and propped against the driving block 15, and the driving block 15 is provided with a first jack 17 or a slot for inserting one end of the connecting rod 4.

The connecting rod 4 is a U-shaped rod, one end of the U-shaped rod is connected with the handle 3, and the other end of the U-shaped rod is connected with the energy storage piece 5.

An indicator 6 is mounted on the housing 1 in a manner of translating left and right, the indicator 6 having a first position in which it is locked in cooperation with the contact support 7, and a second position in which it is unlocked from the contact support 7, driven by the handle 3. As shown in fig. 4 and 5, the indicator 6 includes an indicator body, and an indicator portion 26 provided at the top of the indicator body. The locking structure comprises a first lug 10 arranged on the indicating piece 6 and a second lug 14 arranged on the contact support 7 and capable of being matched with and propped against the first lug 10, and the second lug 14 is positioned right above the first lug 10 and has a certain distance with the first lug when the switch is in a switching-off state. In this embodiment, the third bump 16 is disposed on the left side of the indicator body, and the first bump 10 is disposed at the middle position of the indicator body. The indicator 6 is movably mounted on the housing 1 through a third elastic member 13, one end of the third elastic member 13 abuts against the housing 1, the other end abuts against the indicator 6, and the third elastic member 13 is adapted to apply an elastic force moving toward the indicator 6 toward the first position. The indication part 26 has a brake-off indication surface and a brake-on indication surface, and the brake-off indication surface is arranged corresponding to the opening 25 in the brake-off state; in the closing state, the closing instruction surface is provided corresponding to the opening 25.

The contact support 7 is mounted on the shell 1 in a vertically movable manner through a first elastic piece 11, and a contact bridge 8 is arranged on the contact support 7. The contact support 7 is formed with a mounting cavity 19 and side openings 20 respectively arranged at two sides of the mounting cavity 19, the energy storage element 5 and the contact bridge 8 are respectively arranged at the top and the bottom of the mounting cavity 19, and movable contacts at two ends of the contact bridge 8 extend out from the corresponding side openings 20. It should be noted that, for those skilled in the art, the distance between the second bump 14 and the first bump 10 of the contact support 7 may be flexibly selected according to actual requirements.

The energy storage member 5, as shown in fig. 4 and 5, is mounted on the contact support 7 in a manner of being able to move up and down through the second elastic member 12, and both sides of the energy storage member 5 are provided with sliding blocks 21 which extend into the corresponding side openings 20 and are able to move up and down relative to the side openings 20. The second elastic member 12 has an energy storage state pressed by the energy storage member 5 after the contact support 7 is cooperatively locked with the indicator member 6, and an energy release state for driving the contact support 7 to move in a closing direction after the contact support 7 is unlocked from the indicator member 6. In this embodiment, the second elastic member 12 is a spring, as shown in fig. 6, the energy storage member 5 is provided with a positioning block 22 that is positioned and connected with one end of the spring, and the positioning block 22 has a guiding inclined surface 23 provided on one side thereof for inserting the spring, and a blocking surface 24 provided on the other side thereof.

As an alternative embodiment, the indicator 6 can also be rotatably mounted on the housing.

The working principle of the isolating switch of the utility model is as follows:

when the isolating switch is in the opening state, the second lug 14 of the contact support 7 is positioned right above the first lug 10 of the indicator 6; in the closing process, the driving handle 3 rotates clockwise, before the second bump 14 contacts the first bump 10, the energy storage element 5 moves downwards together with the contact support 7 under the driving of the connecting rod 4 (the elastic acting force of the second elastic element 12 to the contact support 7 is greater than the elastic acting force of the first elastic element 11 to the contact support 7), after the second bump 14 abuts against the first bump 10, the contact support 7 keeps motionless, the energy storage element 5 moves downwards under the driving of the connecting rod 4, so as to compress the second elastic element 12 to store energy, after the handle 3 continues to rotate clockwise by a certain angle, the driving block 15 abuts against the third bump 16 of the indicating element 6, so as to drive the indicating element 6 to move leftwards, so that the second bump 14 is separated from the first bump 10, the second elastic element 12 releases energy, and the contact support 7 is driven to move downwards rapidly, so that the contact bridge 8 is in contact communication with the fixed contact 2.

The isolating switch provided by the utility model comprises a handle 3, an indicating piece 6, a contact support 7 and an energy storage piece 5, wherein in the closing process, when the contact support 7 is locked by the indicating piece 6 and cannot move downwards, the energy storage piece 5 moves downwards relative to the contact support 7 so as to squeeze a second elastic piece 12 to store energy of the second elastic piece 12; then the handle 3 can drive the indicating piece 6 to unlock with the contact support 7, and the second elastic piece 12 releases energy, and the contact bridge 8 of the drive contact support 7 moves towards the direction of the fixed contact 2 rapidly to realize rapid closing, so that electric arcs are not easy to generate, and the service life of the switch is prolonged.

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 isolating switch, comprising:

a shell (1) is fixedly provided with a fixed contact (2);

the handle (3) is rotatably arranged on the shell (1), and the handle (3) is connected with the energy storage piece (5) through the connecting rod (4);

the indicator (6) is movably mounted on the shell (1), and the indicator (6) is provided with a first position which is matched and locked with the contact support (7) and a second position which is driven by the handle (3) and unlocked with the contact support (7);

the contact support (7) is movably arranged on the shell (1) through a first elastic piece (11), and a contact bridge (8) is arranged on the contact support (7);

the energy storage piece (5), movable mounting in on the casing (1), energy storage piece (5) with be equipped with second elastic component (12) between contact support (7), second elastic component (12) have contact support (7) and indicator (6) cooperation locking back, receive energy storage state of energy storage piece (5) extrusion, and contact support (7) and indicator (6) unblock back, drive contact support (7) are towards the energy release state of closing a floodgate orientation removal.

2. The disconnector according to claim 1, characterized in that a locking structure is provided between the indicator (6) and the contact carrier (7), which locking structure comprises a first projection (10) provided on the indicator (6), and a second projection (14) provided on the contact carrier (7) which can cooperate against the first projection (10).

3. Disconnecting switch according to claim 1 or 2, characterized in that a cooperating structure is provided between the handle (3) and the indicator (6), which cooperating structure comprises a driving block (15) provided on the handle (3), and a third projection (16) provided on the indicator (6) against the driving block (15).

4. A disconnector according to claim 3, in which the driving block (15) is provided with a first socket (17) into which one end of the connecting rod (4) is inserted.

5. The disconnector according to claim 1, characterized in that the indicator member (6) is movably mounted on the housing (1) by means of a third elastic member (13), which third elastic member (13) has one end against the housing (1) and the other end against the indicator member (6), the third elastic member (13) being adapted to exert an elastic force towards the indicator member (6) moving in the direction of the first position.

6. Disconnector according to claim 1, characterized by a stop (18) on the housing (1) against the indicator (6) to keep it in the first position.

7. Disconnecting switch according to claim 1, wherein the energy storage member (5) is movably mounted on the contact support (7), the contact support (7) is provided with a mounting cavity (19) and side openings (20) respectively arranged at two sides of the mounting cavity (19), the energy storage member (5) and the contact bridge (8) are respectively mounted at the top and the bottom of the mounting cavity (19), and movable contacts at two ends of the contact bridge (8) extend out from the corresponding side openings (20).

8. Disconnecting switch according to claim 7, characterized in that the energy storage element (5) is provided on both sides with a slider (21) extending into the corresponding side opening (20) and being movable up and down in relation to the side opening (20).

9. The disconnecting switch according to claim 1, characterized in that the second elastic member (12) is a spring, the energy storage member (5) is provided with a positioning block (22) which is positioned and connected with one end of the spring, the positioning block (22) is provided with a guiding inclined surface (23) which is arranged on one side and is used for inserting the spring, and a blocking surface (24) which is arranged on the other side.

10. The isolating switch according to claim 1, wherein the top of the housing (1) is provided with an opening (25), and the top surface of the indicator (6) is provided with an indicator portion (26) arranged corresponding to the opening (25).