CN201282395Y - 单相电机的三触点离心开关控制电路 - Google Patents

单相电机的三触点离心开关控制电路 Download PDF

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Publication number
CN201282395Y
CN201282395Y CNU2008201458820U CN200820145882U CN201282395Y CN 201282395 Y CN201282395 Y CN 201282395Y CN U2008201458820 U CNU2008201458820 U CN U2008201458820U CN 200820145882 U CN200820145882 U CN 200820145882U CN 201282395 Y CN201282395 Y CN 201282395Y
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China
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main winding
centrifugal switch
winding
contact
switch control
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CNU2008201458820U
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林仕供
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Fujian Mingdong New Energy Power Technology Co Ltd
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Abstract

本实用新型涉及一种单相电机的三触点离心开关控制电路，包括电源输入端A、B、C，其特征在于：所述电源输入端B经一对离心开关的常闭触点分别与主绕组L1、副绕组L3的一端相连接，所述主绕组L1、副绕组L3的另一端并联后一路与电源输入端C相连接，另一路经与主绕组L1串联的主绕组L2及离心开关的常开触点与电源输入端B连接，位于主绕组L1上的离心开关常闭触点的静触点与电源输入端A相连接，所述主绕组L1的极数比另一主绕组L2的极数少。本实用新型可实现电机的高速启动高速运转及高速启动低速运转的功能。

Description

单相电机的三触点离心开关控制电路
技术领域
本实用新型涉及一种单相电机的三触点离心开关控制电路。
背景技术
一般的单相变极电动机，是通过两套独立的绕组来实现两种极数的变换，需增加铜线用材和硅钢片用材，浪费材料且增加电机的体积。
发明内容
本实用新型的目的是提供一种单相电机的三触点离心开关控制电路，该电路不仅实现能电机的高速启动高速远转，而且还能实现电机的高速启动低速运转的功能。
本实用新型的技术方案是这样实现的：包括电源输入端A、B、C，其特征在于：所述电源输入端B经一对离心开关的常闭触点分别与主绕组L1、副绕组L3的一端相连接，所述主绕组L1、副绕组L3的另一端并联后一路与电源输入端C相连接，另一路经与主绕组L1串联的主绕组L2及离心开关的常开触点与电源输入端B连接，位于主绕组L1上的离心开关常闭触点的静触点与电源输入端A相连接，所述主绕组L1的极数比另一主绕组L2的极数少。
本实用新型的优点是：低速时不需要另外增加起动用的辅助绕组，而是借用高速绕组来起动，从而实现电机的高速启动低速运转的功能。
附图说明
图1为本实用新型的电路原理图。
具体实施方式
下面结合附图和具体实施例对本实用新型做进一步阐述：
高速起动高速运转阶段：接通A—C之间的电源，主绕组L1、副绕组L3接通，电机高速启动，当转子转速上升到预定转速的60％时，离心开关的常闭触点1断开，则副绕组L3回路断开，实现电机的高速起动、高速运转。
高速起动低速运转阶段：接通B—C之间的电源，主绕组L1、副绕组L3接通，电机高速启动，当转子转速上升到预定转速的60％时，离心开关的常闭触点1断开，离心开关的常开触点2闭合，则主绕组L1和副绕组L3回路断开，主绕组L2回路接通，电机进入低速运转状态，实现电机的高速起动、低速远转。
本实用新型结构简单，可实现电机的高速启动高速运转及高速启动低速运转的功能，减少单相变极电机的用材，具有较大的推广应用价值。

Claims (1)

1、一种单相电机的三触点离心开关控制电路，包括电源输入端A、B、C，其特征在于：所述电源输入端B经一对离心开关的常闭触点分别与主绕组L1、副绕组L3的一端相连接，所述主绕组L1、副绕组L3的另一端并联后一路与电源输入端C相连接，另一路经与主绕组L1串联的主绕组L2及离心开关的常开触点与电源输入端B连接，位于主绕组L1上的离心开关常闭触点的静触点与电源输入端A相连接，所述主绕组L1的极数比另一主绕组L2的极数少。
CNU2008201458820U 2008-10-14 2008-10-14 单相电机的三触点离心开关控制电路 Expired - Fee Related CN201282395Y (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101976921A (zh) * 2010-08-23 2011-02-16 上海特波电机有限公司 提高单相电机最小起动转矩精度的方法
CN107888032A (zh) * 2017-12-11 2018-04-06 利欧集团浙江泵业有限公司 一种单相双速双电压异步电动机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101976921A (zh) * 2010-08-23 2011-02-16 上海特波电机有限公司 提高单相电机最小起动转矩精度的方法
CN107888032A (zh) * 2017-12-11 2018-04-06 利欧集团浙江泵业有限公司 一种单相双速双电压异步电动机

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