Centrifugal switch structure of single phase induction motor

A single-phase induction motor, centrifugal switch technology, applied in the direction of electric switches, circuits, electrical components, etc., can solve problems such as damage

Inactive Publication Date: 2005-12-07
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, in the centrifugal switch of the single-phase induction motor constituted by the above-mentioned conventional structure, the force applied to the first leaf spring switch (65) and the second leaf spring switch (67) by the rotation of the movable rod (62) is released, and the main When the coil terminal (66) and the auxiliary coil terminal (68) change from the closed state to the open state, the self-elastic force of the first leaf spring switch (65) and the second leaf spring switch (67) changes from the closed state to the open state, so The terminal part of the first leaf spring switch (65) is temporarily melted by the heat generated between the contacts and between the first leaf spring switch (65) and the auxiliary coil terminal (68) while the auxiliary coil terminal (68) is closed. The coil terminal (66) and the auxiliary coil terminal (68) can also be quickly switched from the closed circuit state to the open circuit state and are damaged.

Method used

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  • Centrifugal switch structure of single phase induction motor
  • Centrifugal switch structure of single phase induction motor
  • Centrifugal switch structure of single phase induction motor

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Embodiment Construction

[0032] The following is a more detailed description with reference to the diagram of the centrifugal switch structure of the single-phase induction motor according to an embodiment of the present invention.

[0033] Figure 4 It is a cross-sectional view illustrating a centrifugal switch structure of a single-phase induction motor according to an embodiment of the present invention, Figure 5 is an enlarged icon Figure 4 A plan view of the movable rod portion shown in , Figure 6 is a cutaway icon Figure 5 The sectional view of the "A-A" part shown in the figure, Figure 7 as well as Figure 8 icon Figure 4 The cross-sectional view of the state where the centrifugal switch of the single-phase induction motor shown in the figure is operating, Figure 7 is a cross-sectional view showing the closed state of the auxiliary coil terminal, Figure 8 It is a sectional view showing an open state of the auxiliary coil terminal.

[0034] The structure of the centrifugal switch...

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Abstract

A centrifugal switch structure for single phase induction motor consisting of axial moveable axle collar slide block, moveable switch containing first leaf spring switch in shell for switching on / off main and sub windings, moveable lever rotary hinged in shell and located at first leaf spring switch and rotation according to pressurization state of axle collar, fixing slot for executing on / off action. Said invention can prevent the damage of contact by smelting contact.

Description

technical field [0001] The invention belongs to the technical field of electric motors, in particular about the centrifugal switch structure of a single-phase induction motor. More in detail, the action rod is restored to its original state by the spring force and increases the restoring force by increasing the force in the direction in which the original state of the leaf spring switch is restored. Therefore, A centrifugal switch structure of a single-phase induction motor that prevents damage to the centrifugal switch caused by welding between the contacts due to heat generation by adding a fixed pin to the operating rod to fix the leaf spring switch. Background technique [0002] Generally speaking, a motor is a device that converts electrical energy into mechanical energy. According to the power supply, it is divided into DC motor or AC motor. AC motor has induction motor, synchronous motor and commutator motor. Induction motor is divided into 3-phase induction motor and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H35/10
Inventor 文民植
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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