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CN-224217762-U - Modularized installation structure of leakage protection device

CN224217762UCN 224217762 UCN224217762 UCN 224217762UCN-224217762-U

Abstract

The utility model discloses a modularized installation structure of a leakage protection device, which comprises a shield module, a transmission mechanism, an electromagnetic mechanism and a circuit board, wherein the transmission mechanism is installed in a first installation cavity of the shield module, the electromagnetic mechanism is installed in a second installation cavity of the shield module, and extends into the first installation cavity through an armature push rod to be connected with a transmission piece, the circuit board is fixed on the shield module through a buckle structure, and the transmission mechanism, the electromagnetic mechanism, a mutual inductor module, the circuit board and the driving structure are integrated into an installation whole through the shield module.

Inventors

  • ZHOU SHUGEN
  • TIAN YAO
  • Guan Xiaoyin
  • ZHENG WEI

Assignees

  • 浙江中讯电子有限公司

Dates

Publication Date
20260508
Application Date
20250428

Claims (10)

  1. 1. A modular installation structure of an earth leakage protection device, comprising: A shield module which is arranged in the shell (1) and comprises a first mounting cavity (23) and a second mounting cavity (24) which are arranged at intervals; The transmission mechanism (3) is arranged in the first mounting cavity (23) of the shield module, and comprises a transmission piece (31) rotatably arranged in the first mounting cavity (23) and two groups of contact assemblies coaxially and cooperatively arranged on the transmission piece (31); Electromagnetic mechanism (4) is installed in the second installation cavity (24) of guard shield module, and it includes armature push rod (41) that makes rectilinear movement under the electromagnetic force effect that electromagnetic mechanism (4) produced, armature push rod (41) extend penetrate into first installation cavity (23) with driving medium (31) link to each other, be provided with between driving medium (31) and electromagnetic mechanism (4) cover and locate reset spring (5) on armature push rod (41), armature push rod (41) are moved the time drive driving medium (31) rotation.
  2. 2. The modular installation structure of an earth leakage protection device according to claim 1, wherein the shield module comprises a first shield body (21) provided with a first installation cavity (23) and a second shield body (22) provided with a second installation cavity (24), the transmission mechanism (3) is installed in the first shield body (21), the electromagnetic mechanism (4) is installed in the second shield body (22), and the first shield body (21) and the second shield body (22) are fixedly connected or integrally connected.
  3. 3. The earth leakage protection device modular mounting structure of claim 2, wherein the shield module further comprises a mounting plate (25) connected to one side of the second cover (22), and the mounting plate (25) is provided with a transformer module (6).
  4. 4. The modular installation structure of a leakage protection device according to claim 3, further comprising a circuit board (7) fixed on the top of the shield module through a connecting structure, wherein the mutual inductor module (6) and the electromagnetic mechanism (4) are respectively connected with the circuit board (7), the circuit board (7) covers the transmission mechanism (3), the electromagnetic mechanism (4) and the mutual inductor module (6), and the connecting structure comprises a plurality of installation buckles (27) arranged on the side wall of the shield module and a plurality of installation clamping holes which are arranged on the circuit board (7) and form a clamping fit with the installation buckles (27).
  5. 5. The modular installation structure of a leakage protection device according to any one of claims 2 to 4, wherein two rotating shaft parts (311) extending in the same axial direction and connecting two groups of contact assemblies are arranged at two ends of the transmission member (31), two rotating shaft holes (28) forming a rotating connection with the two rotating shaft parts (311) are arranged on two side walls of the first cover body (21), each group of contact assemblies comprises a contact support member (32) sleeved on the rotating shaft part (311), a moving contact (33) arranged on the contact support member (32) in a linkage manner, and a torsion spring member (34) arranged between the contact support member (32) and the transmission member (31), and the transmission member (31) drives the contact support member (32) to rotate by extruding the torsion spring member when rotating.
  6. 6. The modular installation structure of a leakage protection device according to claim 5, wherein the torsion spring member (34) is sleeved on the rotating shaft portion (311) and is provided with two elastic end legs extending to be respectively connected with the transmission member (31) and the contact support member (32), a limiting gap (35) for accommodating the torsion spring member is formed between the transmission member (31) and the contact support member (32), and the contact support member (32) and the transmission member (31) are respectively provided with limiting protrusions (314) extending in the limiting gap and being in abutting fit with the two elastic end legs.
  7. 7. The earth leakage protection device modular mounting structure of claim 1, wherein the electromagnetic mechanism (4) comprises a coil structure (42) which is installed in the second mounting cavity (24) in a matching way, a coil inner cavity which is axially arranged in the coil structure (42) in an extending way, and a yoke (43) which is arranged at one end of the coil inner cavity, wherein the armature push rod (41) is movably arranged in the coil inner cavity and forms an initial gap opposite to the yoke (43), the distance L1 of the initial gap is larger than the distance L2 required by the yoke (43) to act by the armature push rod (41) through electromagnetic force, and a driving structure which drives the armature push rod (41) to move towards one side close to the yoke (43) is arranged between the shield module and the shell (1).
  8. 8. The modular installation structure of a leakage protection device according to claim 7, wherein the length extending direction of the transmission member (31) is perpendicular to the length extending direction of the armature push rod (41), a plugging groove (312) is formed in the middle of the transmission member (31), and one end of the armature push rod (41) penetrates out of the coil structure (42) to be externally connected in the plugging groove (312).
  9. 9. The modular installation structure of the leakage protection device according to claim 7, wherein the driving structure comprises a driving rod (8) vertically penetrating through the circuit board (7) and extending into the first installation cavity (23) to be matched with the transmission piece (31), and a pressure spring (9) arranged between the driving rod (8) and the circuit board (7), a key (81) is arranged at the upper end of the driving rod (8) penetrating through the circuit board (7), the key (81) and the circuit board (7) are arranged up and down oppositely, a group of limit hooks penetrating through the circuit board (7) are arranged at the bottom of the key (81), and the limit hooks are matched and hooked on the lower side face of the circuit board (7) under the action force of the pressure spring (9).
  10. 10. The modular installation structure of the leakage protection device according to claim 9, wherein a driving inclined surface (82) is arranged at the lower end of the driving rod (8), a guiding inclined surface (313) matched with the driving inclined surface (82) is arranged at the middle part of the transmission piece (31), a guiding hole through which the driving rod (8) can pass is arranged on the circuit board (7), a guiding chute (26) extending along the axial direction of the guiding hole is arranged on the inner wall of the side, facing the guiding inclined surface (313), of the shield module, and the driving rod (8) is arranged in the guiding hole and the guiding chute (26) in a penetrating manner.

Description

Modularized installation structure of leakage protection device Technical Field The utility model relates to the technical field of leakage protection devices, in particular to a modularized installation structure of a leakage protection device. Background The leakage protection plug is an electrical equipment of a power interface of a household electrical appliance, is also an electrical equipment element which is used in the design of a residential electrical appliance and has close relationship with the life of people. The leakage protection plug has the advantages that when the leakage condition occurs in the circuit, the power supply is automatically cut off before the leakage current does not reach the current quantity injuring the human body, so that the personal safety is protected. The structure of the leakage protection plug comprises a shell with an inner cavity, a circuit board, a tripping device, a contact system and a pin, wherein the tripping device comprises an electromagnetic coil, an iron core, a yoke iron, an armature iron bracket and a return spring, the contact system comprises a moving contact fixed on the armature iron bracket and a fixed contact arranged in the shell, the circuit board is welded on the pin, the pin is connected with the moving contact through a flexible connection, one end of the return spring is connected with the armature iron, the other end of the return spring is connected with the yoke iron, the armature iron bracket is fixedly connected on the armature iron bracket, the armature iron bracket is rotationally assembled in the shell and is opposite to the iron core, and when the electromagnetic coil is electrified, the electromagnetic coil is attracted to act on the armature iron bracket to enable the moving contact to be contacted with the fixed contact under the driving of the armature iron bracket, and the acting force of the return spring can be assisted when the coil is powered off. The assembly structure of the existing leakage protection plug is complex, the assembly procedures are multiple, the assembly is complicated, the assembly efficiency is difficult to improve, the automatic assembly production of products is not facilitated, and the production cost is increased. Therefore, the installation structure of the leakage protection plug is optimally designed by technicians at present so as to achieve the purposes of simplifying the assembly structure, realizing the modularized assembly of products and improving the assembly efficiency. Disclosure of utility model Therefore, the utility model aims to solve the technical problems that the assembly structure of the leakage protection plug in the prior art is complex, the assembly process is more, the assembly is more complicated, the assembly efficiency is difficult to improve, and the production cost is increased. In order to solve the above technical problems, the present utility model provides a modular installation structure of a leakage protection device, including: The shield module is arranged in the shell and comprises a first mounting cavity and a second mounting cavity which are arranged at intervals; The transmission mechanism is arranged in a first mounting cavity of the shield module and comprises a transmission piece rotatably arranged in the first mounting cavity and two groups of contact assemblies coaxially and cooperatively arranged on the transmission piece; The electromagnetic mechanism is arranged in the second mounting cavity of the shield module and comprises an armature push rod which moves linearly under the action of electromagnetic force generated by the electromagnetic mechanism, the armature push rod extends into the first mounting cavity and is connected with the transmission piece, a reset spring sleeved on the armature push rod is arranged between the transmission piece and the electromagnetic mechanism, and the transmission piece is driven to rotate when the armature push rod moves. As a preferable scheme, the shield module comprises a first shield body provided with a first mounting cavity and a second shield body provided with a second mounting cavity, the transmission mechanism is arranged in the first shield body, the electromagnetic mechanism is arranged in the second shield body, and the first shield body and the second shield body are fixedly connected or integrally connected. As a preferable scheme, the shield module further comprises a mounting plate connected to one side of the second cover body, and the mounting plate is provided with a transformer module. As a preferred scheme, the transformer module and the electromagnetic mechanism are respectively connected with the circuit board, the circuit board is covered above the transmission mechanism, the electromagnetic mechanism and the transformer module, the connection structure comprises a plurality of mounting buckles arranged on the side wall of the shield module and a plurality of mounting clamping holes which ar