CN213752595U

CN213752595U - Indication structure of leakage switch

Info

Publication number: CN213752595U
Application number: CN202022539117.0U
Authority: CN
Inventors: 袁柯
Original assignee: Wenzhou Heying Electric Technology Co ltd
Current assignee: Wenzhou Heying Electric Technology Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-07-20
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses an indication structure of a leakage switch, which comprises a circuit board, a button bracket, a first indication piece and a second indication piece, wherein the button bracket is fixed above the circuit board, the button is fixed on the button bracket, and the button bracket is provided with a refraction part; the first indicating piece is linked with the button and moves vertically; the second indicator also moves vertically, and the part of the second indicator extends into the space between the first indicator and the refraction part from the lower part of the circuit board; in the first state, the first indicating piece indicates through refraction of the refraction part; in a second state, the second indicating piece is positioned between the refraction part and the first indicating piece, and the second indicating piece conducts refraction indication through the refraction part; the utility model discloses instruct effectual, simple structure, simple to operate.

Description

Indication structure of leakage switch

Technical Field

The utility model relates to an indication structure of leakage switch.

Background

The earth leakage protection switch is required to have obvious open and closed marks; most of the key-type leakage protection switches in the market are indicated by LED lamps, and the switch cannot be clearly indicated to be switched on or switched off under certain conditions (power failure and switch damage), so that unsafe use conditions are caused.

However, there is a mechanical indicating structure in the market, but the structure is complex and the assembly is very inconvenient.

Disclosure of Invention

The utility model discloses the main technical problem who solves provides a leakage switch's instruction structure.

The utility model discloses the technical scheme who solves its technical problem and adopt is: an indication structure of a leakage switch comprises a circuit board, a button support, a first indication piece and a second indication piece, wherein the button support is fixed above the circuit board, the button is fixed on the button support, and a refraction part is arranged on the button support; the first indicating piece is linked with the button and moves vertically; the second indicator also moves vertically, and the part of the second indicator extends into the space between the first indicator and the refraction part from the lower part of the circuit board; in the first state, the first indicating piece indicates through refraction of the refraction part; in the second state, the second indicating piece is positioned between the refraction part and the first indicating piece, and the second indicating piece conducts refraction indication through the refraction part.

Through the arrangement of the two indicating pieces, the first state is a brake-off state, namely the first indicating piece is indicated through refraction of the refraction part, namely the load power-off state is indicated at the moment; under the second state, for the combined floodgate state, be circuit normal operating condition promptly, at this moment, the second indicator stretches into between first indicator and the refraction portion, forms and blocks the effect, and at this moment, only the second indicator can form the refraction through refraction portion, so this moment, only instruct the instruction state of second indicator, promptly be combined floodgate state to show the instruction effect of switching on or off through whole mechanical structure. The refraction part is a transparent part or a light scattering part, so that the state of the indicating part can achieve the indicating effect.

Wherein, first indicator is detachable connection with the button.

Through the mode of detachable connection for first indicator can be convenient for dismantle the change, can be according to the service environment of difference, selects different indicators.

Wherein, be equipped with first buckle on the first indicator, be equipped with the first recess with first buckle adaptation on the button.

Through first buckle and the cooperation of first recess, form fixed effect for it is more convenient to fix.

Wherein, be equipped with the location arch on the button, be equipped with the positioning groove with the protruding adaptation of location on the first indicator.

The arrangement of the positioning protrusions is adopted, so that the fixing structure between the first indicating piece and the button is more convenient.

The circuit board is provided with a circuit board, the circuit board is provided with a fixed frame, the fixed frame is provided with a movable contact spring sheet, one end of the movable contact spring sheet is fixed with the fixed frame, the fixed contact sheet is positioned on the motion track of the other end of the movable contact spring sheet, the second indicating piece is provided with a driving part, and the driving part drives the other end of the movable contact spring sheet to move.

The arrangement of the movable contact spring piece forms the effect of reset movement, and the arrangement of the movable contact spring piece forms the electrical connection effect.

Wherein, the fixed mount is provided with a supporting piece which is propped against the movable contact spring sheet.

The arrangement of the supporting piece forms a lever effect, and the elastic restoring force of the other end of the movable contact spring piece is stronger.

Wherein, be equipped with first portion of colluding on the button, first portion of colluding sets up perpendicularly downwards, and links with second indicator.

Adopt the setting of first portion of colluding for both play the linkage effect, press the button, make first portion of colluding drive the motion of second indicator.

Wherein, first indicator and second indicator are the color indication.

The status indication of the two is more obvious through color indication, and the preferred scheme here is that the first indicator is green, and the second indicator is red. Green represents the power-off state of the load, namely the switching-off state, and red represents the power-on state of the load, namely the switching-on state.

Wherein, the button support is transparent setting.

Adopt button support for transparent setting, formed the indicating effect, through refraction portion and whole cooperation for it is more convenient to observe.

The trip device comprises a locking piece, and the locking piece locks the first hook part to move.

The tripper is an electromagnetic tripper, under a normal working state, the tripper drives a locking piece, the effect of locking a first hook part of a button is realized, when a load end generates leakage current, the working principle is that a zero sequence transformer in the leakage switch amplifies the leakage current signal, a leakage chip on a circuit board receives the leakage current signal, the output end of the leakage current chip outputs, silicon controlled rectifier for controlling the tripper on the circuit board is conducted, a coil in the tripper is electrified to generate magnetic field force, an iron core acts to drive the locking piece to move, the locking state of the first hook part is released, the button resets at the moment, a movable contact spring piece drives a second indicating piece to move downwards, the brake-off operation is realized at the moment, a circuit is in a brake-off state, and the first indicating piece indicates a corresponding state.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a front view of embodiment 1 of the present invention;

FIG. 3 is a front view of the operation state of embodiment 1 of the present invention;

fig. 4 is an exploded view of the push button and the first indicator in embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a button in embodiment 1 of the present invention;

fig. 6 is a schematic structural diagram of a trip device according to embodiment 1 of the present invention.

Detailed Description

Example 1:

referring to fig. 1-6, an indication structure of a leakage switch includes a circuit board 1, a button 2, a button holder 3, a first indicator 4, a second indicator 5, and a fixing frame 6.

The top of circuit board 1 is equipped with button support 3, and button support 3 is buckle formula through two stabilizer blades 31 and mount 6 and is connected, and its concrete structure is that two stabilizer blades 31 pass the circuit board and be connected with

mount

6, and 3 other parts of button support all are located the top of circuit board 1, and with be the interval setting between the circuit board 1. Be equipped with on the button support 3 and be equipped with button guiding hole 32, be equipped with four refraction portions 33 on the button support 3 towards circuit board 1 one side, two liang a set of in four refraction portions 33 form two groups and establish on button support 3. Further, the whole transparent setting of button support 3 improves holistic indicating effect.

The button 2 part passes button guiding hole 32, is perpendicular up-and-down reciprocating motion along button guiding hole 32, is equipped with fixed part 21 on the button 2, is equipped with four location archs 22 around fixed part 21, is equipped with two first recesses 23 around the center of fixed part 21, and first recess 23 is used for cooperating with first indicator 4, forms the fixed effect of first indicator 4.

The central position of the button 2 is provided with a connecting column 24 which is vertically downward, the tail end of the connecting column 24 is provided with a first hook part 241, and the first hook part 241 is attached to the bottom surface of the second indicator 5 to form a linkage effect. Further, the connecting column 24 is sleeved with a first reset member to form a reset effect, where the first reset member may be a spring, which is not shown in the drawings.

Four positioning grooves 41 are arranged on the periphery of the first indicator 4, the positioning effect between the first indicator 4 and the button 2 is formed by the cooperation of the positioning protrusions 22 and the positioning grooves 41, a first buckle 42 matched with the first groove 23 is arranged on the first indicator 4, detachable connection is formed by the cooperation of the first buckle 42 and the first groove 23, the first indicator 4 can be conveniently detached and replaced by detachable connection, and different indicators can be selected according to different use environments. It should be noted here that the movement locus of the first indicator 4 also moves vertically downward, and the side surface of the first indicator 4 is mainly matched with the refraction portion 33 to form an indication effect. Further, in order to improve the overall indication effect, color indication is preferable here, and the color of the first indicator 4 is preferably green, and the entire first indicator 4 may be green, or the side surface of the first indicator 4 facing the refraction portion 33 may be green.

Be equipped with mount 6, static contact 7 and second indicator 5 on the below of circuit board 1, be equipped with release 8 in the mount 6, release 8 includes locking piece 81, and the motion of first portion 241 that colludes of locking piece 81 locking. It should be noted that the release 8 is embodied as an electromagnetic release, and when the leakage current is sensed, the electromagnetic release acts to drive the locking member 81 to move. Its concrete theory of action does, under the combined floodgate state, release 8 passes through the first portion 241 that colludes of locking piece 81 locking, make first portion 241 that colludes under normal condition, can not take place the motion, when taking place the electric leakage, release 8 moves, drive locking piece 81 and move towards release 8 one side of release, make first portion 241 and locking piece 81 remove the locking, at this moment, first portion 241 resets, second indicator 5 is because the setting of movable contact shell fragment 61, movable contact shell fragment 61 drives second indicator 5 downstream, realize the separating brake effect, second indicator 5 is not sheltering from first indicator 4 this moment, the demonstration is the separating brake state at this moment. Further, here, a second reset element is disposed on the locking element 81, that is, the locking element 81 is driven to achieve a reset effect, and the second reset element is not shown in the drawings.

The number of the static contacts 7 is two, and the static contacts are respectively arranged on the circuit board 1.

The second indicator 5 extends from the lower part of the circuit board 1 to the upper part of the circuit board 1, and the second indicator 5 is driven by the first hook part 241 of the button 2 to realize vertical movement relative to the circuit board 1. The second indicator 5 has four indicating parts 51, and the four indicating parts 51 extend into the space between the first groove 23 and the refracting part 33, so that the effect of shielding the first indicator 4 is achieved, and the effect of closing indication is achieved. The second indicator 5 is provided with a driving part 52, and the driving part 52 drives the other end of the movable contact spring piece 61 to move. Here, the second indicator 5 is also indicated by a color, and is preferably red, and the entire second indicator 5 may be red, or the second indicator 5 may be red toward the refraction portion 33.

The fixed frame 6 is provided with two movable contact spring pieces 61 and a supporting piece 62, the two movable contact spring pieces 61 correspond to the two static contact pieces 7, and the structures of the two movable contact spring pieces are consistent, so that only one group of structures is described. One end of the movable contact elastic sheet 61 is fixedly connected with the fixed frame 6, the other end of the movable contact elastic sheet is arranged towards the driving part 52 and is abutted against the driving part 52, the supporting piece 62 is positioned between the two parts to play a role of lever support, the position of the supporting piece 62 can be adjusted according to actual requirements, if the elasticity of the other end of the movable contact elastic sheet 61 is larger, the supporting piece 62 can be adopted to be close to one fixed side, and if the elasticity of the movable contact elastic sheet 61 is required to be reduced, the movable contact elastic sheet can be arranged in the opposite direction. Further, here, the support 62 may also be provided by an elastic member, such as a spring.

Under the normal power-on state, the driving part 52 drives the movable contact spring sheet 61 to move towards the static contact sheet 7, so that the electrical connection effect between the movable contact spring sheet 61 and the static contact sheet 7 is realized. When electric leakage occurs or a test state occurs, the movable contact spring sheet 61 is quickly reset, and simultaneously, the driving part 52 is driven to move, so that the movable contact spring sheet 61 is separated from the static contact 7, and the brake separating effect is realized.

Through the arrangement of the two indicating pieces, in the first state, the state is the opening state, namely the first indicating piece 4 is indicated through the refraction of the refraction part 33, namely the state is the load power-off state; under the second state, for the combined floodgate state, be the normal operating condition of circuit promptly, at this moment, second indicator 5 stretches into between first indicator 4 and refraction portion 33, forms and blocks the effect, and at this moment, only second indicator 5 can form the refraction through refraction portion 33, so this moment, only indicate the instruction state of second indicator 5, promptly for the combined floodgate state to show the instruction effect of circular telegram through whole mechanical structure. The refraction part is a transparent part or a light scattering part, so that the state of the indicating part can achieve the indicating effect.

Claims

1. An indication structure of a leakage switch is characterized in that: the button comprises a circuit board, a button bracket, a first indicating piece and a second indicating piece, wherein the button bracket is fixed above the circuit board, the button is fixed on the button bracket, and a refraction part is arranged on the button bracket; the first indicating piece is linked with the button and moves vertically; the second indicator also moves vertically, and the part of the second indicator extends into the space between the first indicator and the refraction part from the lower part of the circuit board; in the first state, the first indicating piece indicates through refraction of the refraction part; in the second state, the second indicating piece is positioned between the refraction part and the first indicating piece, and the second indicating piece conducts refraction indication through the refraction part.

2. An indicating structure of a leakage switch as claimed in claim 1, wherein: the first indicator is detachably connected with the button.

3. An indicating structure of a leakage switch as claimed in claim 2, wherein: be equipped with first buckle on the first indicator, be equipped with the first recess with first buckle adaptation on the button.

4. An indicating structure of a leakage switch as claimed in claim 3, wherein: the button is provided with a positioning bulge, and the first indicating piece is provided with a positioning groove matched with the positioning bulge.

5. An indicating structure of a leakage switch as claimed in claim 1, wherein: the circuit board is provided with a circuit board, the circuit board is provided with a fixed frame, the fixed frame is provided with a movable contact spring piece, one end of the movable contact spring piece is fixed with the fixed frame, the fixed contact piece is located on the motion track of the other end of the movable contact spring piece, the second indicating piece is provided with a driving part, and the driving part drives the other end of the movable contact spring piece to move.

6. An indicating structure of a leakage switch as claimed in claim 5, wherein: the fixed frame is provided with a supporting piece which is propped against the movable contact spring sheet.

7. An indicating structure of a leakage switch as claimed in claim 1, wherein: the button is provided with a first hook part which is vertically arranged downwards and is linked with the second indicating piece.

8. An indicating structure of a leakage switch as claimed in claim 7, wherein: the first indicator and the second indicator are both indicated by colors.

9. An indicating structure of a leakage switch as claimed in claim 1, wherein: the button support is transparent.

10. An indicating structure of a leakage switch as claimed in claim 1, wherein: the tripper is fixed in the fixing frame and comprises a locking piece, and the locking piece locks the first hook part to move.