公开(公告)号：US3720936A

公开(公告)日：1973-03-13

申请号：US3720936D

申请日：1971-09-03

Applicant: CONTROLS CO OF AMERICA

Inventor： KAHALE A ,  YATSUSHIRO K ,  WIELGOS T

IPC: D06F37/20 ,  H01H35/00 ,  G08B21/00

CPC classification number: H01H35/00 ,  D06F37/203

Abstract: The switch is designed to be used in a washing machine to sense an out-of-balance condition of the tub during the spin cycle. The assembly is wired into the washer with the coil in series with the washer motor but the coil is normally shunted by a switch which is self biased to its ''''closed'''' position bridging the coil terminals. In this condition the motor operation is normal. When an out-of-balance tub in a clothes washer bumps the wand projecting from the armature the armature is moved to the core of the coil and actuates the switch plunger to open the switch, thus placing the coil in series with the motor. The relatively high impedance of the coil relative to the motor impedance limits motor current so the motor stops. The A-C supply to the coil causes the armature to vibrate (buzz) giving an audible signal that the washer has stopped due to an unbalanced load. The washer is restored to normal by opening the line switch which deenergizes the coil to thereby release the armature and permit the switch to reclose and restore the coil shunt.

Abstract translation: 该开关设计用于洗衣机，以便在旋转循环期间感测浴缸的不平衡状态。 组件连接到垫圈中，线圈与洗衣机电机串联，但是线圈通常被开关自动分流，该开关自动偏置到桥接线圈端子的“闭合”位置。 在这种情况下，电机运行正常。 当洗衣机中的不平衡桶撞击从电枢突出的魔杖时，衔铁被移动到线圈的芯部并且致动开关柱塞以打开开关，从而将线圈与电动机串联。 线圈相对于电机阻抗的相对较高的阻抗限制电机电流，因此电机停止。 线圈的A-C电源使电枢振动（蜂鸣声），给出一个可听见的信号，表示垫圈由于负载不平衡而停止。 通过打开线圈开关使垫圈恢复正常，线路开关使线圈断电，从而释放电枢，并允许开关重新闭合并恢复线圈分流。

公开(公告)号：US3857053A

公开(公告)日：1974-12-24

申请号：US34891673

申请日：1973-04-09

Applicant: CONTROLS CO OF AMERICA

Inventor： YATSUSHIRO K ,  KUCHURIS G

IPC: H02K21/14

CPC classification number: H02K21/145 ,  H02K2201/12

Abstract: The gear case is formed with three stator poles circumferentially arranged about the motor axis and formed to lie on the same radius. These poles are equal in width and are equally spaced. The motor case is formed with three or six stator poles. With three motor case stator poles, each is about twice the width of and lies between the gear case poles so the working air gaps are unequal, thus developing an asymmetrical magnetic pattern assuring self starting. In the case of six motor case poles, they are the same width as and lie in pairs between the gear case poles so the working air gaps are unequal. In either case the working air gaps of equal width are spaced 120*. The motor coil is wound on a bobbin and mounted between the cases around the poles.

Abstract translation: 齿轮箱形成有围绕电动机轴线周向布置的三个定子极，并且形成为位于相同的半径上。 这些极的宽度相等并且等间距。 电机外壳由三个或六个定子极组成。 有三个电机外壳定子极，每个齿轮箱极的宽度大约是宽度的两倍，并且位于齿轮箱极之间，因此工作气隙不相等，从而产生非对称磁性图案，从而确保自启动。 在六个电机外壳的情况下，它们与齿轮箱极之间的宽度相同并且成对地布置，因此工作气隙不相等。 在任一情况下，相等宽度的工作气隙间隔120°。 马达线圈缠绕在线轴上并安装在两极之间的壳体之间。