Electric leakage protection plug assembling structure

Abstract

The utility model discloses an electric leakage protection plug assembling structure, comprising a circuit board and a tripping seat which are mutually plugged, a pin sheet and a magnetic ring which are plugged on the tripping seat, and an electric leakage protection assembly which is arranged between the circuit board and the tripping seat, the tripping seat is provided with a magnetic ring accommodating part which can accommodate the magnetic ring, and the tripping seat is provided with an electric leakage protection assembly which is arranged between the circuit board and the tripping seat. And the magnetic ring is arranged in the magnetic ring accommodating part and is in plug-in connection with the circuit board. The electric leakage protection assembly is simple in structure, the magnetic ring accommodating part is arranged on the tripping seat, so that the magnetic ring is assembled into the magnetic ring accommodating part together with the electric leakage protection assembly in the step process of assembling the electric leakage protection assembly during assembly, subsequent connection and assembly through a wire are not needed, meanwhile, the magnetic ring can be fixed, subsequent shell assembly is facilitated, and the assembly efficiency is improved. And the magnetic ring is arranged on the tripping seat, so that the space occupation caused by the external arrangement of the magnetic ring is avoided, and the device is practical and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to plug technical field especially a leakage protection plug assembly structure. BACKGROUND

[0002] Leakage protection plug is also called residual current protection plug, when leakage phenomenon appears, leakage protection plug can detect leakage current, and then cut off power supply in time to protect the personal safety of user.

[0003] Such as the announcement number CN219811678U's Chinese utility model patent discloses a kind of leakage protection plug assembly structure, in the patent document, although the components disclosed therein can be sequentially installed along vertical direction, overall assembly structure is simpler, but the electronic elements such as magnetic ring (zero sequence current transformer), voltage-dependent resistor still need to be assembled additionally, simultaneously due to the structure design in the patent document, leading to magnetic ring can only be connected by wire, and there is no fixing structure to fix magnetic ring, so that staff needs to manually place the position of magnetic ring when finally assembling shell, which undoubtedly reduces assembly efficiency, further improvement is needed. SUMMARY

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a leakage protection plug assembly structure.

[0005] The technical scheme adopted by the utility model to solve its technical problems is:

[0006] A leakage protection plug assembly structure, comprising a line board and a trip seat inserted into each other, a plug pin inserted into the trip seat, a magnetic ring, and a leakage protection component provided between the line board and the trip seat, the trip seat is provided with a magnetic ring accommodating portion capable of accommodating the magnetic ring, and the magnetic ring is installed in the magnetic ring accommodating portion and is inserted into the line board.

[0007] The leakage protection plug assembly structure described above, the magnetic ring further outwardly protrudes an electrical connector, and the line board further has an electrical connection hole for inserting the electrical connector.

[0008] The leakage protection plug assembly structure described above, after the magnetic ring is installed in the magnetic ring accommodating portion, the outer wall of the magnetic ring is tangent to the outer wall of the trip seat.

[0009] The leakage protection plug assembly structure described above, the plug pin includes a live pin, a neutral pin and a ground pin, the trip seat further has a ground connection piece, one end of the ground connection piece is connected to the ground pin, and the other end is inserted into the line board.

[0010] As described above, the leakage protection plug assembly structure includes a tripping assembly, a movable spring, a pressure arm, a reset assembly, and a varistor. The tripping assembly and the movable spring are both plugged into the circuit board. The pressure arm is movably disposed within the tripping seat. The reset assembly is movably disposed on the circuit board, and its lower end penetrates the circuit board and is connected to the pressure arm. The varistor is mounted on the tripping seat and is electrically connected to the circuit board.

[0011] As described above, in a leakage current protection plug assembly structure, the trip seat is further provided with a varistor mounting position for placing the varistor.

[0012] As described above, in a leakage current protection plug assembly structure, both the live wire and neutral wire plug pieces are provided with stationary contacts; two movable spring pieces are provided, each of which is provided with a movable contact that can contact the stationary contacts.

[0013] As described above, in a leakage current protection plug assembly structure, the reset component includes a reset rod that passes through the circuit board. The reset rod has a pressing cap at one end above the circuit board and is connected to the pressure arm at the other end below the circuit board. A reset spring is also sleeved on the reset rod, and the two ends of the reset spring are respectively connected to the pressing cap and the pressure arm.

[0014] As described above, in a leakage current protection plug assembly structure, the tripping assembly includes a tripping coil inserted below the circuit board, an armature core is movably disposed inside the tripping coil, one end of the armature core protrudes from the outside of the tripping coil and is provided with a locking piece, and a small spring is provided between the armature core and the inner wall of the tripping coil.

[0015] As described above, in a leakage protection plug assembly structure, the pressure arm is further provided with a locking part that allows one end of the locking piece to pass through.

[0016] As described above, in a leakage protection plug assembly structure, a pin fixing bracket for fixing the pin pieces is also snapped into place below the trip seat.

[0017] The beneficial effects of this utility model are: the structure of this application is simple. By providing a magnetic ring receiving part on the trip seat, the magnetic ring can be assembled into the magnetic ring receiving part during the assembly of the leakage protection component. There is no need to connect and assemble it with wires later. At the same time, the magnetic ring can be fixed, which is convenient for subsequent shell assembly. Moreover, installing the magnetic ring on the trip seat also avoids the space occupation caused by the external placement of the magnetic ring. It is practical and convenient. Attached Figure Description

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0019] Fig. 1 is a structural schematic diagram of an embodiment of the leakage protection plug assembly structure of the present application.

[0020] Fig. 2 is a second structural schematic diagram of an embodiment of the leakage protection plug assembly structure of the present application.

[0021] Fig. 3 is an exploded view of an embodiment of the leakage protection plug assembly structure of the present application. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described in detail below in combination with the drawings and embodiments.

[0023] Please refer to Figs. 1 to 3 The present application provides a leakage protection plug assembly structure, which comprises a circuit board 1 and a tripping seat 2 that are mutually plugged, a pin piece 3 that is plugged on the tripping seat 2, a magnetic ring 4, and a leakage protection component that is arranged between the circuit board 1 and the tripping seat 2. The tripping seat 2 is provided with a magnetic ring accommodating portion 20 that can accommodate the magnetic ring 4. The magnetic ring 4 is installed in the magnetic ring accommodating portion 20 and is plugged with the circuit board 1.

[0024] By providing the magnetic ring accommodating portion 20 on the tripping seat 2, the magnetic ring 4 can be assembled into the magnetic ring accommodating portion 20 at the same time during the step of assembling the leakage protection component. Therefore, it is not necessary to connect and assemble by using a wire subsequently. Meanwhile, the magnetic ring 4 can be fixed, which facilitates the subsequent shell assembly. Furthermore, the installation of the magnetic ring 4 on the tripping seat 2 also avoids the space occupation caused by the external magnetic ring 4, which is practical and convenient.

[0025] Further, an electric connection head 40 is outwardly protruded on the magnetic ring 4. An electric connection hole 10 is also provided on the circuit board 1, which can allow the electric connection head 40 to be plugged. The electric connection head 40 is directly plugged with the electric connection hole 10 to realize the electric connection, which eliminates the need for assembling by using a wire. The step is simple, which greatly improves the assembly efficiency and makes the leakage protection plug assembly structure more neat and simple as a whole.

[0026] Further, the pin piece 3 includes a fire pin piece 31, a zero pin piece 32, and a ground pin piece 33, and the tripping seat 2 is further provided with a ground connecting piece 330, one end of which is connected with the ground pin piece 33 and the other end is inserted into the circuit board 1.

[0027] The ground pin piece 33 is connected with the circuit board 1 through the ground connecting piece 330, instead of the traditional external wire connection, so that the connection stability is higher, the assembly steps are simpler, the assembly efficiency is greatly improved, and the overall leakage protection plug assembly structure is more neat and simple.

[0028] Further, the leakage protection assembly includes a tripping assembly 5, a moving piece 6, a pressing arm 7, a reset assembly 8, and a pressure sensitive resistor 9, the tripping assembly 5 and the moving piece 6 are inserted into the circuit board 1, the pressing arm 7 is movably arranged in the tripping seat 2, the reset assembly 8 is movably arranged on the circuit board 1 and the lower end of the reset assembly 8 penetrates through the circuit board 1 and is connected with the pressing arm 7, and the pressure sensitive resistor 9 is arranged on the tripping seat 2 and is electrically connected with the circuit board 1.

[0029] The circuit board 1 and the tripping seat 2 can be connected in a detachable manner, so that they can be assembled together in the later period. The circuit board 1 is fixed with a plurality of components, which constitute a leakage protection circuit. The pin piece 3 is used for being inserted into the socket to connect the power supply, the moving piece 6 is connected with the power supply through electrical contact with the pin piece 3, when leakage is detected, the tripping assembly 5 is actuated, and then the pressing arm 7 drives the moving piece 6 to move, so that the moving piece 6 is separated from the pin piece 3 to disconnect the power supply.

[0030] Further, the tripping seat 2 is further provided with a pressure sensitive resistor mounting position 90 for placing the pressure sensitive resistor 9. The pressure sensitive resistor 9 is mounted on the pressure sensitive resistor mounting position 90, instead of being directly connected with the circuit board 1 through lead welding, so as to fix the pressure sensitive resistor 9, protect the pressure sensitive resistor 9, and make the overall leakage protection plug assembly structure more neat and simple.

[0031] Further, the reset assembly 8 includes a reset rod 81 penetrating through the circuit board 1, one end of the reset rod 81 above the circuit board 1 is provided with a pressing cap 82, the other end of the reset rod 81 below the circuit board 1 is connected with the pressing arm 7, and a reset spring 83 is further sleeved on the reset rod 81, and the two ends of the reset spring 83 are connected with the pressing cap 82 and the pressing arm 7 respectively.

[0032] In the embodiment, the specific working principle of the reset assembly 8 belongs to the prior art, which will not be described here.

[0033] Further, the tripping assembly 5 comprises a tripping coil 51 inserted below the circuit board 1, and a armature core 52 movably arranged in the tripping coil 51, one end of the armature core 52 protrudes from one side of the tripping coil 51 and is provided with a locking piece 53, and a small spring 54 is further arranged between the armature core 52 and the inner side wall of the tripping coil 51.

[0034] Specifically, the pressing arm 7 is further provided with a locking portion 70 through which the one end of the locking piece 53 passes.

[0035] In the embodiment, the specific working principle of the tripping assembly 5 and the pressing arm 7 is known in the art, and will not be described here.

[0036] Further, a pin fixing frame 300 for fixing the pin piece 3 is further connected below the tripping base 2. The pin piece 3 is further fixed by the pin fixing frame 300, so as to ensure the overall assembly stability of the leakage protection plug assembly structure.

[0037] In summary, the magnetic ring accommodating portion 20 is arranged on the tripping base 2, so that during the assembly of the leakage protection assembly, the magnetic ring 4 is assembled into the magnetic ring accommodating portion 20 at the same time, without subsequent connection and assembly through the wire, and the magnetic ring 4 can be fixed, facilitating subsequent shell assembly. In addition, the magnetic ring 4 is installed on the tripping base 2, which avoids the space occupation caused by the external magnetic ring 4, and is practical and convenient.

[0038] The ground connection piece 330 is arranged to connect the ground pin piece 33 and the circuit board 1, so as to replace the traditional external wire connection, which is more stable in connection and simpler in assembly steps, greatly improves the assembly efficiency, and makes the leakage protection plug assembly structure more neat and simple.

[0039] The piezoresistor 9 is installed on the piezoresistor mounting position 90 to replace the traditional piezoresistor 9 installation mode of directly welding with the circuit board 1 through the lead wire, so as to fix the piezoresistor 9 and protect the piezoresistor 9, and make the leakage protection plug assembly structure more neat and simple.

[0040] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or direct or indirect application in other related technical fields based on the content of the present application is also included in the patent protection range of the present application.

Claims

1. An electric leakage protection plug assembly structure, characterized by comprising: The utility model provides a leakage protection device, which comprises a circuit board (1) and a tripping seat (2) which are plugged into each other, a pin piece (3) which is plugged into the tripping seat (2), a magnetic ring (4), and a leakage protection assembly which is arranged between the circuit board (1) and the tripping seat (2), wherein the tripping seat (2) is provided with a magnetic ring accommodating portion (20) which can accommodate the magnetic ring (4), the magnetic ring (4) is mounted in the magnetic ring accommodating portion (20) and is plugged into the circuit board (1).

2. The leakage protection plug assembly structure according to claim 1, characterized in that: The magnetic ring (4) is further provided with an electric connector (40) which protrudes outward, and the circuit board (1) is further provided with an electric connection hole (10) which can be plugged into the electric connector (40).

3. The leakage protection plug assembly structure according to claim 1 or 2, characterized in that: The pin piece (3) comprises a live pin piece (31), a zero pin piece (32), and a grounding pin piece (33), and the tripping seat (2) is further provided with a grounding connecting piece (330) which is connected to the grounding pin piece (33) at one end and is plugged into the circuit board (1) at the other end.

4. The plug assembly of claim 3, wherein: The leakage protection assembly comprises a tripping assembly (5), a movable piece (6), a pressing arm (7), a reset assembly (8), and a pressure-sensitive resistor (9), wherein the tripping assembly (5) and the movable piece (6) are plugged into the circuit board (1), the pressing arm (7) is movably arranged in the tripping seat (2), the reset assembly (8) is movably arranged on the circuit board (1) and penetrates through the circuit board (1) at the lower end and is connected to the pressing arm (7), and the pressure-sensitive resistor (9) is mounted on the tripping seat (2) and is electrically connected to the circuit board (1).

5. The plug assembly of claim 4, wherein: The tripping seat (2) is further provided with a pressure-sensitive resistor mounting position (90) for placing the pressure-sensitive resistor (9).

6. The plug assembly of claim 4, wherein: The live pin piece (31) and the zero pin piece (32) are both provided with a static contact (30), and the movable piece (6) is provided with two static contacts (60) which can be in contact with the static contact (30).

7. The plug assembly of claim 4, wherein: The reset assembly (8) comprises a reset rod (81) which penetrates through the circuit board (1), one end of the reset rod (81) is provided with a pressing cap (82) above the circuit board (1), the other end of the reset rod (81) is connected to the pressing arm (7) below the circuit board (1), and the reset rod (81) is further sleeved with a reset spring (83) which is connected to the pressing cap (82) and the pressing arm (7) at both ends.

8. The plug assembly of claim 4, wherein: The tripping assembly (5) comprises a tripping coil (51) which is plugged into the circuit board (1), and the tripping coil (51) is further movably provided with an armature core (52) which protrudes from one side of the tripping coil (51) and is provided with a locking piece (53), and a small spring (54) is further arranged between the armature core (52) and the inner wall of the tripping coil (51).

9. The plug assembly of claim 8, wherein: The pressing arm (7) is further provided with a locking portion (70) which can allow one end of the locking piece (53) to pass through.

10. The plug assembly of claim 1, wherein: The tripping seat (2) is further provided with a pin fixing frame (300) which is connected below the tripping seat (2) and is used for fixing the pin piece (3).

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