Leakage protection plug structure

Abstract

The utility model discloses a leakage protection plug structure, which comprises a shell, a lead and an accessory seat, and the accessory seat is mounted in the shell. The accessory seat is provided with a live wire pin, a zero wire pin, a ground wire pin, an induction coil, a circuit board and a conductive elastic sheet; the induction coil is provided with a through cavity, and the live wire pin and the zero wire pin penetrate through the through cavity at the same time and are arranged on the two sides of the induction coil respectively. The conductive elastic sheets are arranged on the two sides of the accessory base respectively, the conductive elastic sheets on the two sides are connected with the live wire pin and the zero wire pin respectively, and the conductive elastic sheets on the two sides are connected with the wire. And the live wire pin and the null line pin are movably contacted with the conductive elastic sheets connected with the live wire pin and the null line pin respectively. Generally, an electric leakage protection plug induction coil is arranged on a plug output cable in a detection manner, so that the electric leakage protection plug is easy to assemble, but according to the plug structure, the induction coil detection is directly arranged on an N / L input plug pin, so that the electric leakage detection range is larger, electric leakage on the surface of the plug can be detected, and the plug is safer, more compact in structure and smaller in size.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to a leakage protection plug structure. BACKGROUND

[0002] With the continuous progress of science and technology and the increasing importance of people's life safety, more and more household appliances are provided with leakage protection plugs at the input end of the power supply. The leakage protection plug can automatically cut off the power supply before the leakage current reaches the amount of current that can harm the human body, avoiding human body electric shock. Especially in some special environments, such as humid places (such as swimming pools, shower rooms, kitchens, bathrooms, etc.), the skin resistance of the human body is reduced, and the risk of electric shock death is greatly increased. After installing the leakage protector, the electric shock injury and death accidents can be effectively reduced. Therefore, we have developed a leakage protection plug structure to ensure the safety of daily use of electricity. UTILITY MODEL CONTENTS

[0003] To solve at least one of the above problems, the utility model provides a new structure scheme, and the leakage protection plug structure adopts the following technical scheme:

[0004] A leakage protection plug structure, which comprises a shell, a wire and a accessory seat, the accessory seat is installed in the shell;

[0005] The accessory seat is provided with a live pin, a neutral pin, a ground pin, an induction coil, a circuit board and a conductive spring piece;

[0006] The induction coil has a through cavity, the live pin and the neutral pin are simultaneously connected to the through cavity, and the live pin and the neutral pin are respectively arranged on the two sides of the induction coil;

[0007] The conductive spring piece is respectively arranged on the two sides of the accessory seat, the conductive spring pieces on the two sides are respectively connected to the live pin and the neutral pin, and the conductive spring pieces on the two sides are connected to the wire; the live pin, the neutral pin and the conductive spring piece connected thereto are in movable contact.

[0008] Preferably, the accessory seat is provided with a gland, the gland has a clamping column, and the clamping column is inserted into the through cavity to fix the induction coil on the gland.

[0009] Preferably, the clamping column is provided with an embedding position on the two sides, and the live pin and the neutral pin are respectively embedded in the embedding position to be fixed on the accessory seat.

[0010] Preferably, the accessory seat is provided with a clamping piece, the clamping piece is provided with a clamping hole at the two ends, and the live pin and the neutral pin are respectively embedded in the clamping hole to limit the position of the live pin and the neutral pin in the accessory seat.

[0011] Preferably, the conductive spring is provided with a magnetic suction head, the magnetic suction head is connected with the circuit board, the magnetic suction head is arranged between the live pin and the conductive spring, and the magnetic suction head is arranged between the zero pin and the conductive spring; the magnetic suction head is controlled by the circuit board to connect the live pin, the zero pin and the conductive spring connected with each other.

[0012] Compared with the background art, the utility model has the beneficial effects that:

[0013] The structure controls the mutual attraction of the live pin, the zero pin and the conductive spring by the current change of the induction coil, realizes the on-off of the current and achieves the protection effect. The components are compactly connected in the shell, thereby reducing the overall size and making the outlet space of the shell more sufficient. The leakage protection plug structure directly sets the induction coil detection on the N L input pin, so that the leakage detection range is larger, the plug is safer, the structure is more compact and the volume is smaller. It has the advantages of simple structure, compact cooperation, reasonable design and the like; therefore, it is a product with superior performance in technology and economy. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The utility model provides leakage protection plug structure schematic diagram in preferable embodiment for the utility model;

[0015] Fig. 2 The utility model provides leakage protection plug structure first disassembly state schematic diagram in preferable embodiment for the utility model;

[0016] Fig. 3 The utility model provides leakage protection plug structure second disassembly state schematic diagram in preferable embodiment for the utility model;

[0017] Fig. 4 The utility model provides leakage protection plug structure third disassembly state schematic diagram in preferable embodiment for the utility model. DETAILED DESCRIPTION

[0018] The embodiments of the utility model are described in detail below, and the embodiment examples are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout.

[0019] In the utility model, except for being explicitly stipulated and limited, if the terms "assembling", "connecting" and "connecting" are used, they should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected or integrally connected, can be mechanically connected, can be directly connected or connected through an intermediate medium, and can be connected in the interior of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0020] The technical scheme and beneficial effects of the utility model will be clearer and more explicit through further description of the specific implementation manners of the utility model in combination with the accompanying drawings of the specification. The description of the embodiments below is exemplary and aims to explain the utility model, and cannot be understood as a limitation on the utility model.

[0021] The preferred embodiment provided by the utility model shows a leakage protection plug structure, which comprises a shell 1, a wire 2 and a fitting seat 3, the fitting seat 3 is installed in the shell 1. Figs. 1-4

[0022] The fitting seat 3 is installed with a live pin 5, a neutral pin 6, a ground pin 7, an induction coil 8, a circuit board 11 and a conductive spring 9; the fitting seat 3 is provided with a clamping piece 31, both ends of the clamping piece 31 are respectively provided with a clamping hole 32, the live pin 5 and the neutral pin 6 are respectively connected to the clamping hole 32 so as to limit the positions of the live pin 5 and the neutral pin 6 in the fitting seat 3.

[0023] The induction coil 8 has a through cavity 81, the live pin 5 and the neutral pin 6 are simultaneously connected to the through cavity 81, and the live pin 5 and the neutral pin 6 are respectively arranged on both sides of the induction coil 8.

[0024] The conductive spring 9 is respectively arranged on both sides of the fitting seat 3, the conductive springs 9 on both sides are respectively connected to the live pin 5 and the neutral pin 6, and the conductive springs 9 on both sides are connected to the wire 2; the live pin 5, the neutral pin 6 and the conductive springs 9 connected to them are in movable contact.

[0025] The fitting seat 3 is provided with a gland 33, the gland 33 has a clamping column 34, the clamping column 34 is inserted into the through cavity 81 to fix the induction coil 8 on the gland 33; the top of the clamping column 34 is provided with a triangular protrusion 35, the triangular protrusion 35 is connected to the induction coil 8 so as to limit the induction coil 8 from coming out. The clamping column 34 is respectively provided with an embedding position 36 on both sides, the live pin 5 and the neutral pin 6 are respectively connected to the embedding position 36 to be fixed on the fitting seat 3.

[0026] The conductive spring 9 is provided with a magnetic head 91, the magnetic head 91 is connected to the circuit board 11, the magnetic head 91 is arranged between the live pin 5 and the conductive spring 9, and the magnetic head 91 is arranged between the neutral pin 6 and the conductive spring 9; the magnetic head 91 is controlled by the circuit board 11 to connect the live pin 5, the neutral pin 6 and the conductive springs 9 connected to them. The leakage protection plug structure directly sets the induction coil detection on the N L input pin, so that the leakage detection range is larger, the plug is safer, the structure is more compact, and the volume can be smaller.

[0027] ​In the description of the specification, the description of the terms "one embodiment", "preferably", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model, and the illustrative description of the above terms in the specification does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] Through the description of the above structure and principle, those skilled in the art should understand that the utility model is not limited to the above specific embodiments, and improvements and substitutions of the technology known in the art can be adopted on the basis of the utility model, such as using NL input plug or input plug directly through the inductor between the contact and similar detectors to detect the leakage mode, which all fall within the protection scope of the utility model, which should be limited by each claim.

Claims

1. An electrical leakage protection plug structure, characterized by: It includes a shell, a wire and a fitting seat, the fitting seat is installed in the shell; The fitting seat is installed with a live pin, a zero pin, a ground pin, an induction coil, a circuit board and a conductive spring; The induction coil has a through cavity, the live pin and the zero pin are simultaneously inserted into the through cavity, and the live pin and the zero pin are respectively arranged on two sides of the induction coil; The conductive spring is respectively arranged on two sides of the fitting seat, the conductive spring on the two sides is respectively connected with the live pin and the zero pin, and the conductive spring on the two sides is connected with the wire; the live pin, the zero pin and the conductive spring connected with each other are in movable contact; The fitting seat is provided with a gland, the gland has a clamping column, the clamping column is inserted into the through cavity to fix the induction coil on the gland; The clamping column is respectively provided with an embedded position on two sides, the live pin and the zero pin are respectively inserted into the embedded position to be fixed on the fitting seat; The fitting seat is provided with a clamping piece, the clamping piece is respectively provided with a clamping hole at two ends, the live pin and the zero pin are respectively inserted into the clamping hole to limit the position of the live pin and the zero pin in the fitting seat; The conductive spring is provided with a magnetic head, the magnetic head is connected with the circuit board, the magnetic head is arranged between the live pin and the conductive spring, and the magnetic head is arranged between the zero pin and the conductive spring; the magnetic head is controlled by the circuit board to connect the live pin, the zero pin and the conductive spring connected with each other.

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