Leakage protection switch with terminal isolation protection structure

Abstract

The utility model relates to a leakage protection switch with a terminal isolation protection structure. The leakage protection switch mainly solves the problem that an accident is easily caused due to the fact that a screw used for installing a movable contact is too close to a wiring frame used for wiring in an existing leakage protection switch. The switch is characterized in that the switch also comprises a movable contact piece (11) which is arranged in the housing and is fixedly installed by a fastener (12); the static contact piece (15) is arranged in the shell and is arranged opposite to the movable contact piece; the wiring hole (13) is formed in the outer wall of the shell, an isolation hood (2) is arranged in the wiring hole (13), the isolation hood is made of an insulating material, a wiring assembly electrically connected with the static contact piece is arranged in the insulating hood, and the insulating hood is used for isolating the fastener from the wiring assembly. According to the leakage protection switch with the wiring end isolation protection structure provided by the utility model, the installation screw of the movable contact is isolated from the wiring frame, the creepage distance is increased, and accidents are prevented.

Description

Technical Field

[0001] The utility model relates to the field of switches, in particular to a leakage protection switch with a wiring terminal isolation protection 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 screws for mounting the moving contact of a conventional leakage protection switch are too close to the wiring frame for wiring, which may easily cause accidents. 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 screws used to install the moving contact piece of the current leakage protection switch are too close to the wiring frame used for wiring, which is easy to cause accidents.

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

[0006] A leakage protection switch with a terminal isolation protection structure comprises a housing, an action mechanism, a leakage protection module and a contact mechanism are arranged in the housing, and also comprises

[0007] A moving contact piece is arranged in the housing and fixedly installed by a fastener;

[0008] A stationary contact piece, arranged in the housing and opposite to the moving contact piece;

[0009] The wiring hole is arranged on the outer wall of the shell, and an isolation cover is arranged inside the wiring hole. The isolation cover is made of insulating material, and a wiring assembly electrically connected to the static contact piece is arranged inside the isolation cover. The isolation cover is used to isolate the fastener from the wiring assembly.

[0010] The isolation cover is detachably connected to the shell.

[0011] The outer wall of the shell is provided with a mounting hole for mounting the fastener, and the outer wall of the isolation cover covers the mounting hole.

[0012] The bottom of the shell is provided with a mounting wall, the mounting wall is provided with a clamping slot, and the outer wall of the isolation cover is provided with a clamping block which is clamped and matched with the clamping slot.

[0013] The isolation cover comprises two fixed arms, the wiring assembly comprises a wiring frame and a power contact piece electrically connected to the static contact piece, the wiring frame is provided with a threaded fastening screw, and the wiring frame is arranged between the two fixed arms.

[0014] The inner wall of the fixed arm is provided with a protrusion for contacting the outer wall of the wiring frame.

[0015] The power contact piece and the static contact piece are made in one piece.

[0016] The movable contact piece is a structure in which multiple spring pieces are installed together by riveting.

[0017] The beneficial effects of the utility model are as follows: the utility model provides a leakage protection switch with a wiring terminal isolation protection structure, which isolates the mounting screws of the moving contact piece from the wiring frame, increases the creepage distance, and prevents accidents from occurring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model.

[0019] Figure 2 It is a partial cross-sectional schematic diagram of an embodiment of the utility model.

[0020] Figure 3 for Figure 2 A magnified schematic diagram of center A.

[0021] Figure 4 It is a partial three-dimensional schematic diagram of an embodiment of the utility model.

[0022] Figure 5 The figure is a three-dimensional schematic diagram of a moving contact piece according to an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings: as shown in the figure, a leakage protection switch with a terminal isolation protection structure includes a shell 1, in which an action mechanism, a leakage protection module and a contact mechanism are arranged, and also includes a moving contact piece 11, which is arranged in the shell and fixedly installed by a fastener 12; a static contact piece 15, which is arranged in the shell and opposite to the moving contact piece; a wiring hole 13, which is arranged on the outer wall of the shell, and an isolation cover 2 is arranged inside it, and the isolation cover is made of an insulating material, and a wiring assembly electrically connected to the static contact piece is arranged in the isolation cover, and the isolation cover is used to isolate the fastener from the wiring assembly. The action mechanism, leakage protection module (which can be a circuit board and a mutual inductor), and contact mechanism can refer to the Chinese patents CN215988630U and CN216749753 U, which are prior art and will not be described in detail. The isolation cover can be made of plastic, and its purpose is to separate the fasteners and the wiring assembly. The fasteners are installed from the outside to the inside to fix the moving contact piece, so they will be charged. The wiring assembly is set outside the shell and is short from the fasteners. The isolation cover separates the two to increase the safety of electricity use. The terminal can be used for PE poles or other poles.

[0024] In this embodiment, as shown in the figure, the isolation cover is detachably connected to the housing and can be installed by means of snap connection or the like.

[0025] In this embodiment, as shown in the figure, the outer wall of the housing is provided with a mounting hole 121 for mounting the fastener, and the outer wall of the isolation cover covers the mounting hole. The mounting hole is used for inserting a screwdriver for installation, and the outer wall of the isolation cover covers the mounting hole to play an isolation role.

[0026] In this embodiment, as shown in the figure, the bottom of the housing is provided with a mounting wall 14, the mounting wall is provided with a card slot 141, and the outer wall of the isolation cover is provided with a card block 21 that is engaged with the card slot. The isolation cover can be quickly installed through the card block and the card slot, and disassembly and assembly are more convenient. The above-mentioned mounting hole is formed between the two mounting holes, and a connecting plate is connected between the two mounting walls, and the wiring frame part is arranged on the connecting plate.

[0027] In this embodiment, as shown in the figure, the isolation cover includes two fixed arms 22, the wiring assembly includes a wiring frame 31 and a power connection piece 32 electrically connected to the static contact piece, the wiring frame is provided with a threaded fastening screw 311, and the wiring frame is arranged between the two fixed arms. The wiring frame cannot rotate between the two fixed walls, so when the screw is turned, the wiring frame moves back and forth, thereby making the wiring hole 310 smaller to achieve wiring.

[0028] In this embodiment, as shown in the figure, the inner wall of the fixed arm is provided with a protrusion 221 for contacting the outer wall of the wiring frame, which plays the role of limiting and guiding.

[0029] In this embodiment, as shown in the figure, the power contact piece and the static contact piece are made in one piece, so the overall structure is more compact.

[0030] In this embodiment, as shown in the figure, the movable contact piece is a structure in which multiple spring pieces are installed together by riveting. No spring is required, and the structure is more compact.

[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 terminal isolation protection structure, comprising a housing (1), wherein an action mechanism, a leakage protection module and a contact mechanism are arranged in the housing, characterized in that: Also includes A movable contact piece (11) is disposed in the housing, and the movable contact piece is fixedly installed by a fastener (12); A stationary contact piece (15) is disposed in the housing and is arranged opposite to the moving contact piece; A wiring hole (13) is provided on the outer wall of the housing, and an isolation cover (2) is provided inside the wiring hole. The isolation cover is made of an insulating material, and a wiring assembly electrically connected to the static contact piece is provided inside the isolation cover. The isolation cover is used to isolate the fastener from the wiring assembly.

2. The leakage protection switch with a terminal isolation protection structure according to claim 1, characterized in that: The isolation cover is detachably connected to the shell.

3. The leakage protection switch with a terminal isolation protection structure according to claim 1, characterized in that: The outer wall of the shell is provided with a mounting hole (121) for mounting the fastener, and the outer wall of the isolation cover covers the mounting hole.

4. The leakage protection switch with a terminal isolation protection structure according to claim 3, characterized in that: A mounting wall (14) is provided at the bottom of the shell, a card slot (141) is provided on the mounting wall, and a card block (21) that is card-engaged with the card slot is provided on the outer wall of the isolation cover.

5. The leakage protection switch with a terminal isolation protection structure according to claim 4, characterized in that: The isolation cover comprises two fixed arms (22), the wiring assembly comprises a wiring frame (31) and a power contact piece (32) electrically connected to the static contact piece, the wiring frame is provided with a threaded fastening screw (311), and the wiring frame is arranged between the two fixed arms.

6. The leakage protection switch with a terminal isolation protection structure according to claim 5, characterized in that: The inner wall of the fixed arm is provided with a protrusion (221) for contacting the outer wall of the wiring frame.

7. The leakage protection switch with a terminal isolation protection structure according to claim 5, characterized in that: The power contact piece and the static contact piece are made in one piece.

8. The leakage protection switch with a terminal isolation protection structure according to claim 1, characterized in that: The movable contact piece is a structure in which multiple spring pieces are installed together by riveting.

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