Leakage protection switch with PE pole breaking structure

Abstract

The utility model relates to a leakage protection switch with a PE pole breaking structure. The leakage protection switch mainly solves the problems that the pe end of a conventional leakage protection switch does not have a breaking function, and potential safety hazards exist. The switch is characterized in that the switch further comprises a second chamber (12), a second static contact piece (41) and a second movable contact piece (42) are arranged in the second chamber and are used for being connected with a PE pole line, and when the first movable contact piece is in electric contact with the second movable contact piece, the second static contact piece is connected with the PE pole line. And a part of the movable contact frame extends into the second cavity and is used for pushing the second movable contact piece to be electrically contacted with the second static contact piece. According to the leakage protection switch with the PE pole breaking structure provided by the utility model, the PE pole can be broken when the circuit breaker is broken, so that the use is safer.

Description

Technical Field

[0001] The utility model relates to the field of switches, in particular to a leakage protection switch with a PE pole disconnecting structure. Background Art

[0002] With the increasing popularity of industrial production facilities and household appliances, people have more and more opportunities to come into contact with electricity, and electrical equipment failures leading to electric shock casualties often occur. For personal safety and equipment safety, leakage protection switches have been widely used as an effective electrical safety technology device and have played a vital role.

[0003] The PE terminal (ground terminal) of a conventional leakage protection switch does not have a disconnecting function. However, in some usage scenarios (such as three-phase four-wire, the PE terminal may be energized), there is a safety hazard. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model provides a leakage protection switch with a terminal isolation protection structure, which mainly solves the problem that the PE end of the conventional leakage protection switch does not have a disconnecting function and there are safety hazards.

[0005] The technical solution of the utility model is:

[0006] A leakage protection switch with a PE pole disconnection structure, comprising a housing, the housing comprising a first chamber, an action structure, a leakage protection mechanism and a contact mechanism arranged in the first chamber, the contact mechanism comprising a moving contact piece and a stationary contact piece, the action structure comprising a moving contact frame, the moving contact frame being used to drive the moving contact piece and the stationary contact piece to close, and further comprising

[0007] It also includes a second chamber, in which a second static contact piece and a second moving contact piece are provided, and the second static contact piece and the second moving contact piece are used to be connected to the PE pole line. When the first moving contact piece is in electrical contact with the second moving contact piece, part of the moving contact frame extends into the second chamber to push the second moving contact piece to make electrical contact with the second static contact piece. When the first moving contact piece is separated from the second moving contact piece, the second moving contact piece is separated from the second static contact piece.

[0008] The second moving contact piece has an elastic force driving it to be separated from the second stationary contact piece.

[0009] The shell includes a convex seat, the first chamber is arranged on one side of the convex seat, and the second chamber is arranged on the other side of the convex seat.

[0010] The convex seat is provided with a detachably connected rear cover, and the second chamber is formed between the rear cover and the convex seat.

[0011] The convex seat is provided with a wiring assembly, and the wiring assembly includes a wiring frame. One end of the second moving contact piece extends into the wiring frame for wiring.

[0012] The second moving contact piece is connected to the housing via a fastener.

[0013] The rear cover is provided with a buckle, and the outer wall of the convex seat is provided with a clamping groove which is clamped and matched with the buckle.

[0014] The rear cover is provided with a mounting seat, and the static contact piece is detachably mounted on the mounting seat.

[0015] The mounting seat is provided with a sinking groove, and communicating slots are provided on both sides of the sinking groove. The second static contact piece is arranged in the sinking groove, and side plates are provided on both sides of the second static contact piece to be plugged and matched with the slots.

[0016] The beneficial effect of the utility model is that the utility model provides a leakage protection switch with a PE pole disconnecting structure, and when the circuit breaker is disconnected, the PE pole can also be disconnected, so the use is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model.

[0018] Figure 2 It is a partial cross-sectional schematic diagram of an embodiment of the utility model.

[0019] Figure 3 This is a partial explosion diagram of an embodiment of the utility model.

[0020] Figure 4 It is a partial three-dimensional schematic diagram of an embodiment of the utility model.

[0021] Figure 5 It is a partial three-dimensional schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings: as shown in the figure, a leakage protection switch with a PE pole disconnecting structure includes a shell 1, the shell includes a first chamber 11, the first chamber is provided with an action structure, a leakage protection mechanism and a contact mechanism, the contact mechanism includes a moving contact piece 31 and a static contact piece, the action structure includes a moving contact frame 21, the moving contact frame is used to drive the moving contact piece and the static contact piece to close, and also includes a second chamber 12, the second chamber is provided with a second static contact piece 41 and a second moving contact piece 42, the second static contact piece and the second moving contact piece are used to be connected to the PE pole line, when the first moving contact piece is in electrical contact with the second moving contact piece, part of the moving contact frame extends into the second chamber to push the second moving contact piece to make electrical contact with the second static contact piece, when the first moving contact piece is separated from the second moving contact piece, the second moving contact piece is separated from the second static contact piece. The action mechanism and the leakage protection module (which can be a circuit board and a transformer) can refer to the Chinese patents CN215988630U and CN216749753 U. When the circuit is closed, the moving contact frame drives the two contact assemblies to merge. When the moving contact frame rises, the second contact head is disconnected from the second static contact by elastic force. A through groove can be provided between the first chamber and the second chamber for the contact rod 215 of the moving contact frame to pass through and push the second moving contact piece.

[0023] In this embodiment, as shown in the figure, the second movable contact piece has an elastic force that drives it to be disconnected from the second stationary contact piece. The second movable contact piece itself may have an elastic force or a spring or other mechanism may be provided to achieve disconnection.

[0024] In this embodiment, as shown in the figure, the housing includes a boss 13, the first chamber is arranged on one side of the boss, and the second chamber is arranged on the other side of the boss.

[0025] In this embodiment, as shown in the figure, the convex seat is provided with a detachably connected back cover 5, and the second chamber is formed between the back cover and the convex seat. The back cover can be installed by screw connection or clamping, and the second chamber is formed between the back cover and the opposite surface of the convex seat.

[0026] In this embodiment, as shown in the figure, the convex seat is provided with a wiring assembly 6, and the wiring assembly includes a wiring frame 61, and one end of the second movable contact piece extends into the wiring frame for wiring. A part of the movable contact piece extends out of the housing and is arranged in the wiring frame for wiring. The principle is that the screw on the wiring frame rotates, and the wiring frame is limited and can only move forward and backward, so the wiring groove 101 formed by the static contact piece and the inner wall of the wiring frame will become smaller. It is a prior art and will not be described in detail. The static contact piece can be connected to the power connection frame 102 of the first chamber through a wire.

[0027] In this embodiment, as shown in the figure, the second movable contact piece is connected to the housing through a fastener, and can be directly fixed by screws.

[0028] In this embodiment, as shown in the figure, the rear cover is provided with a buckle 51, and the outer wall of the protrusion is provided with a slot 131 that is engaged with the buckle. The buckle connection makes disassembly and assembly more convenient.

[0029] In this embodiment, as shown in the figure, a mounting seat 52 is provided on the rear cover, and the stationary contact piece is detachably mounted on the mounting seat.

[0030] In this embodiment, as shown in the figure, the mounting seat is provided with a sink 521, and the two sides of the sink are provided with connected slots 522, the second static contact piece is arranged in the sink, and the two sides of the second static contact piece are provided with side plates 411 that are plugged and matched with the slots. The static contact piece is placed in the sink, and a head 103 is provided on the boss to press on the static contact piece, and the side plate is inserted into the slot to achieve more stable fixation.

[0031] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] The embodiments described with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention. The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the scope of protection of the present invention.

Claims

1. A leakage protection switch with a PE pole disconnection structure, comprising a housing (1), the housing comprising a first chamber (11), an action structure, a leakage protection mechanism and a contact mechanism being arranged in the first chamber, the contact mechanism comprising a moving contact piece (31) and a stationary contact piece, the action structure comprising a moving contact frame (21), the moving contact frame being used to drive the moving contact piece to close with the stationary contact piece, characterized in that: Also includes The invention also comprises a second chamber (12), wherein a second stationary contact piece (41) and a second moving contact piece (42) are arranged in the second chamber, wherein the second stationary contact piece and the second moving contact piece are used to be connected to the PE pole line, and when the first moving contact piece is in electrical contact with the second moving contact piece, part of the moving contact frame extends into the second chamber to push the second moving contact piece to be in electrical contact with the second stationary contact piece, and when the first moving contact piece is separated from the second moving contact piece, the second moving contact piece is separated from the second stationary contact piece.

2. The leakage protection switch with PE pole disconnection structure according to claim 1, characterized in that: The second moving contact piece has an elastic force driving it to be separated from the second stationary contact piece.

3. The leakage protection switch with PE pole disconnection structure according to claim 1, characterized in that: The shell comprises a convex seat (13), the first chamber is arranged on one side of the convex seat, and the second chamber is arranged on the other side of the convex seat.

4. The leakage protection switch with PE pole disconnection structure according to claim 3, characterized in that: The convex seat is provided with a detachably connected rear cover (5), and the second chamber is formed between the rear cover and the convex seat.

5. The leakage protection switch with PE pole disconnection structure according to claim 4, characterized in that: A wiring assembly (6) is provided on the convex seat, the wiring assembly comprising a wiring frame (61), and one end of the second movable contact piece extends into the wiring frame for wiring.

6. The leakage protection switch with PE pole disconnection structure according to claim 5, characterized in that: The second moving contact piece is connected to the housing via a fastener.

7. The leakage protection switch with PE pole disconnection structure according to claim 4, characterized in that: The rear cover is provided with a buckle (51), and the outer wall of the convex seat is provided with a clamping groove (131) that is engaged with the buckle.

8. The leakage protection switch with PE pole disconnection structure according to claim 7, characterized in that: The rear cover is provided with a mounting seat (52), and the static contact piece is detachably mounted on the mounting seat.

9. The leakage protection switch with PE pole disconnection structure according to claim 8, characterized in that: The mounting seat is provided with a sink groove (521), both sides of the sink groove are provided with communicating slots (522), the second static contact piece is arranged in the sink groove, and both sides of the second static contact piece are provided with side plates (411) that are plugged into and matched with the slots.

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