Two-speed motor change-over switch

A technology of two-speed motors and switching switches, which is applied in the direction of electric switches, circuits, relays, etc., to achieve the effects of reducing occupied space, reducing maintenance costs, and simplifying connection lines

Active Publication Date: 2021-08-10
JIANGSU YOUPIN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application provides a two-speed motor switching switch to solve or partially solve the problems existing in the two-speed motor control circuit in the prior art

Method used

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  • Two-speed motor change-over switch
  • Two-speed motor change-over switch
  • Two-speed motor change-over switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] Such as Figure 1-6 As shown, a two-speed motor changeover switch includes a wiring part, a control part 2 and a transmission mechanism;

[0046]The wiring part is fixedly connected with the control part 2, and the wiring part is used to communicate with the three-phase power supply and the double-speed motor. The wiring part includes three lugs one 100 and one lug two 200 arranged side by side, and the lug one 100 includes a shell 101, static Contact one 102, static contact two 103, moving contact one 104, moving contact two 105, inlet terminal 106, outlet terminal one 107 and outlet terminal two 108, static contact one 102 and inlet terminal 106 are fixedly connected , one end of the moving contact one 104 is softly connected to the outlet end one 107 through a wire (not shown in the figure), the other end is used to connect with the static contact one 102 or the two static contacts 103, and one end of the moving contact two 105 is connected to the outlet Terminal 2 ...

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PUM

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Abstract

The invention discloses a two-speed motor change-over switch in the field of two-speed motors. The switch comprises a wiring part, the wiring part is used for connecting a three-phase power supply and a two-speed motor, the wiring part is provided with two main loops, and when one main loop is in a disconnected state, one end, connected with a live wire of the two-speed motor, of the main loop is communicated with the live wire of the two-speed motor. According to the double-speed motor switching circuit, the original mode that two control switches and one contactor are used for achieving double-speed motor switching in the prior art is replaced, the manufacturing, using and maintaining cost of electric devices is reduced, intensification of switching of the double-speed motor switching circuit is achieved, and meanwhile the problem that when the contactor acts, a contact coil is continuously electrified to generate heat, and energy consumption is generated is effectively solved.

Description

technical field [0001] The invention relates to the technical field of two-speed motors, in particular to a switch for a two-speed motor. Background technique [0002] The two-speed motor belongs to the asynchronous motor with pole-changing speed regulation. It changes the number of pole pairs of the stator rotating magnetic field by changing the connection method of the stator winding, thereby changing the speed of the motor. [0003] There are two main ways to connect the two-speed motor: △-type connection at low speed and YY-type connection at high speed. The control circuit of the two-speed motor in the prior art is usually realized by two control switches and a contactor. Low speed switching. [0004] However, the current control circuit of the two-speed motor has the following problems: there are many electrical components, which occupy a large space, making the electrical cabinet larger; there are many contacts between the primary line and the secondary line, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/26H01H50/54
CPCH01H9/26H01H50/54
Inventor 孙杰
Owner JIANGSU YOUPIN ELECTRIC
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