CN211428106U

CN211428106U - Tripping indicating mechanism and feedback system of residual current circuit breaker

Info

Publication number: CN211428106U
Application number: CN202020135286.5U
Authority: CN
Inventors: 陈平; 张帅; 余存泰; 黎永胜; 吴碧如
Original assignee: Zhejiang Tengen Electric Co Ltd
Current assignee: Zhejiang Tengen Electric Co Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-09-04
Anticipated expiration: 2030-01-21

Abstract

Provided are a tripping indicating mechanism and a feedback system of a residual current circuit breaker. The tripping indication of the existing circuit breaker is mostly only indicated by a button of the circuit breaker, and the tripping indication is not very accurate. The method is characterized in that: the trigger switch (11) electrically connected with the circuit board (9) is arranged in the shell, the release and the trigger switch are correspondingly arranged, and the circuit board is connected with an upper computer through a wireless or signal line. The utility model provides a tripping indication mechanism and feedback system of electric leakage circuit breaker, through the trigger switch who corresponds the setting with the release transmit signal, it is more accurate.

Description

Tripping indicating mechanism and feedback system of residual current circuit breaker

Technical Field

The utility model relates to a circuit breaker field, concretely relates to electric leakage circuit breaker's dropout indicating mechanism and feedback system.

Background

According to the requirement of intellectualization of a power supply network in China, the national power grid company requires the intellectualization of the power supply network, so that a small circuit breaker of a terminal execution mechanism of the power supply network is required to execute an upper end signal to have tripping and closing functions. Therefore, the existing development trend of the miniature circuit breaker is to have the functions of automatic opening and closing and reclosing besides the functions of traditional manual opening and closing and automatic tripping in case of overcurrent and overload, so as to realize remote control.

The leakage circuit breaker is an important component of the smart grid and has the function of automatically acting when the leakage current in a circuit exceeds a preset value. The conventional leakage circuit breaker is classified into a voltage type and a current type, and the current type is classified into an electromagnetic type and an electronic type.

The tripping indication of the existing residual current circuit breaker is mostly only the button indication of the circuit breaker, and is not very accurate.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of background art, the utility model provides a tripping indication mechanism and feedback system of electric leakage circuit breaker mainly has solved the most button instructions that are local of tripping indication of present circuit breaker, not very accurate problem.

The utility model adopts the technical proposal that:

a tripping indicating mechanism of an electric leakage circuit breaker comprises a shell, wherein an operating mechanism and a tripper are arranged in the shell, the tripper is used for driving the operating mechanism to open the electric leakage circuit breaker, a trigger switch electrically connected with a circuit board is arranged in the shell,

the trigger switch is arranged corresponding to the tripper, is triggered by the actuating component of the tripper when the tripper operates, and is used for acquiring the position signal of the actuating component of the tripper.

The trigger switch is a microswitch, and the actuating component is the trip bar.

The operating mechanism comprises a support, a moving contact, a lock catch and a jump buckle are arranged on the support, the lock catch and the jump buckle are correspondingly arranged, the release comprises a release rod, and the release rod is correspondingly arranged with the support.

One end of the tripping rod corresponds to the bracket, and the other end of the tripping rod corresponds to the trigger switch.

The casing is internally provided with a support, the support is provided with a mounting groove, and the circuit board is matched with the support in a clamping manner.

Be equipped with clearance fit's button on the casing, be equipped with between button and the casing and be used for the application of force will button top protrusion in shell surface's elastic component, the button bottom is located be equipped with in the casing with trip lever swing joint's linkage portion.

The shell is internally provided with a rotatable transmission plate, one end of the transmission plate is connected with the trip rod, and the other end of the transmission plate is connected with the button.

The linkage part is a linkage plate arranged at the bottom of the button, a slot is arranged on the linkage plate, and an insertion block extending into the slot is arranged on the transmission plate.

The trip bar outer end is equipped with the push pedal, the driving plate is equipped with the through-hole that is used for the trip bar to pass, the push pedal is located the driving plate outside.

A state feedback system comprises an upper end, a tripping indicating mechanism and a feedback system, wherein the upper end is in communication connection with the tripping indicating mechanism.

The utility model has the advantages that: the utility model provides a tripping indication mechanism and feedback system of electric leakage circuit breaker, through the trigger switch who corresponds the setting with the release transmit signal, it is more accurate.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is an internal perspective view of an embodiment of the present invention.

Fig. 3 is an enlarged schematic view of a point a in fig. 2.

Fig. 4 is a schematic partial sectional view of an embodiment of the present invention.

Fig. 5 is an internal perspective view of an embodiment of the present invention.

Fig. 6 is a perspective view of a driving plate according to an embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of a trip unit according to an embodiment of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings: as shown in the figure, a tripping indication mechanism of an electric leakage circuit breaker comprises a shell 1, wherein an operating mechanism 2 and a tripper 3 are arranged in the shell, the tripper is used for driving the operating mechanism to enable the electric leakage circuit breaker to be switched off, a trigger switch 11 electrically connected with a circuit board 9 is arranged in the shell, the trigger switch corresponds to the tripper and is triggered by an actuating component of the tripper when the tripper operates, and the position signal of the actuating component of the tripper is acquired. The opening and closing state of the circuit breaker can be known through the position signal of the actuating component, taking fig. 7 as an example, the tripping rod of the tripper can only contact with the trigger switch (including position sensing contact) or push the operating mechanism to open the circuit, so that the opening and closing information of the circuit breaker can be known through the position signal of the actuating component of the tripper.

As one alternative, when the tripping device is switched on, a tripping rod of the tripping device is in contact with a trigger switch, when the tripping device is switched off, the tripping rod leaves the trigger switch, the residual current circuit breaker is switched off through an operating mechanism, the trigger switch transmits a signal to a circuit board, and the circuit board displays the signal on an upper computer in a wireless or wired mode. The trigger switch can be a mechanical switch such as a micro switch, a tact switch and the like, or an electronic switch such as a photoelectric sensing switch or a hall element (a magnetic pole can be arranged on a top rod of the tripper to sense the change of a magnetic field so as to trigger a signal), and an actuating component on the tripper can be the top rod of a top rod type tripper and also can be an armature of a clapper type tripper.

Of course, different from the drawings in the specification, a person skilled in the art may also set the trigger switch on the same side of the bracket according to actual requirements, that is, the trigger switch may be triggered when the shedding bar pushes the bracket to rotate (such as the above-mentioned wireless sensing or photoelectric sensing).

As an alternative, the structure of the release can be as shown in fig. 7, in a normal state, the plunger 32 at one end of the movable iron core 33 is pressed against the trigger switch under the action of the spring 34, when releasing, the coil is electrified, the movable iron core overcomes the force of the spring to be in contact with the static iron core 35, and at the moment, the plunger 31 at the other end of the movable iron core is in contact with the operating mechanism to realize releasing. The communication connection may be by wired or wireless means.

In this embodiment, as shown in the figure, the operating mechanism includes a support 21, a movable contact 22, a lock 23 and a trip 24 are arranged on the support, the lock and the trip are correspondingly arranged, the trip includes a trip bar 31, and the trip bar is arranged correspondingly to the support. The tripping rod pushes the support to realize tripping, the structure is simple, the using effect is good, the tripping rod can be adopted to push the intermediate piece, and then the support is pushed through the intermediate piece.

In this embodiment, as shown in the figure, one end of the trip bar corresponds to the bracket, and the other end of the trip bar corresponds to the trigger switch. Preferably, the tripping rod is integrally arranged, and the structure is compact.

In this embodiment, as shown in the figure, a support 12 is arranged in the housing, a mounting groove 121 is arranged on the support, and the circuit board is matched with the support in a clamping manner. The circuit board is convenient to install, can be a branch circuit board and is communicated with the main circuit board through a lead.

In this embodiment, as shown in the figure, be equipped with clearance fit's button 4 on the casing, be equipped with between button and the casing and be used for the application of force with button top protrusion in the elastic component 40 on casing surface, the button bottom is located be equipped with in the casing with trip bar swing joint's linkage portion. The button can be a reset button, and the button protrudes out of the surface of the shell through the elastic piece after tripping, so that the mechanical indication function is achieved. The elastic member may be a spring or the like.

In this embodiment, as shown in the figure, a rotatable transmission plate 5 is arranged in the housing, one end of the transmission plate is connected with the trip bar, and the other end of the transmission plate is connected with the button. The driving plate can be rotated by means of a hinge shaft provided at the housing, which is a solution easily conceived by those skilled in the art.

In this embodiment, as shown in the figure, the linkage portion is a linkage plate 41 arranged at the bottom of the button, a slot 411 is arranged on the linkage plate, and an insertion block 52 extending into the slot is arranged on the transmission plate. When tripping, the tripping rod drives the transmission plate to rotate, the upper end of the transmission plate leaves the button, and the button extends out of the shell under the action of the elastic piece to realize indication, so that the structure is simple and the use is convenient.

In this embodiment, a state feedback system includes an upper end and the tripping indication mechanism and the feedback system of the residual current circuit breaker, which are communicatively connected to each other. The upper end can be an upper computer (such as a PC) or a mobile phone.

In this embodiment, as shown in the figure, the outer end of the trip rod is provided with a push plate 311, the driving plate is provided with a through hole 53 for the trip rod to pass through, and the push plate is arranged on the outer side of the driving plate.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The embodiments described with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. The utility model provides a tripping indication mechanism of residual current circuit breaker, includes casing (1), be equipped with operating device (2) and release (3) in the casing, the release is used for driving operating device makes residual current circuit breaker separating brake, its characterized in that: a trigger switch (11) electrically connected with the circuit board (9) is arranged in the shell, the release comprises an actuating component,

the trigger switch is arranged corresponding to the tripper, is triggered by the actuating component when the tripper operates, and is used for acquiring a position signal of the actuating component.

2. The tripping indication mechanism of a residual current circuit breaker according to claim 1, characterized in that: the operating mechanism comprises a support (21), a moving contact (22), a lock catch (23) and a tripping buckle (24) are arranged on the support, the lock catch and the tripping buckle are arranged correspondingly, the release comprises a tripping rod (31), and the tripping rod and the support are arranged correspondingly.

3. The tripping indication mechanism of a residual current circuit breaker according to claim 2, characterized in that: the trigger switch is a microswitch, and the actuating component is the trip bar.

4. A tripping indication mechanism of a residual current circuit breaker according to claim 3, characterized in that: one end of the tripping rod corresponds to the bracket, and the other end of the tripping rod corresponds to the trigger switch.

5. The tripping indication mechanism of a residual current circuit breaker according to claim 4, characterized in that: be equipped with support (12) in the casing, be equipped with mounting groove (121) on the support, the circuit board with the cooperation of support joint.

6. The tripping indication mechanism of a residual current circuit breaker according to claim 5, characterized in that: be equipped with clearance fit's button (4) on the casing, be equipped with between button and the casing and be used for the application of force with button top protrusion in shell surface's elastic component (40), the button bottom is located be equipped with in the casing with trip lever swing joint's linkage portion.

7. The tripping indication mechanism of a residual current circuit breaker according to claim 6, characterized in that: the shell is internally provided with a rotatable transmission plate (5), one end of the transmission plate is connected with the trip rod, and the other end of the transmission plate is connected with the button.

8. The trip indicating mechanism of a residual current circuit breaker according to claim 7, wherein: the linkage part is a linkage plate (41) arranged at the bottom of the button, a slot (411) is arranged on the linkage plate, and an insertion block (52) extending into the slot is arranged on the transmission plate.

9. A tripping indication mechanism of a residual current circuit breaker according to claim 8, characterized in that: the trip bar outer end is equipped with push pedal (311), the driving plate is equipped with through-hole (53) that are used for the trip bar to pass, the push pedal is located the driving plate outside.

10. A feedback system, characterized by: trip indicating mechanism comprising an upper terminal and a residual current circuit breaker according to any of claims 1-9 communicatively connected to each other.