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1. 发明授权

US4687977A Electronically controlled motor and methods of operating same 失效
标题翻译：电动电机及其运行方法
公开(公告)号：US4687977A
公开(公告)日：1987-08-18
申请号：US663654
申请日：1984-10-22
申请人： Subhash M. Brahmavar , Ernest W. Litch, III
发明人： Subhash M. Brahmavar , Ernest W. Litch, III
IPC分类号： H02K3/16 , H02K29/00 , H02P6/00
CPC分类号： H02K3/16 , H02K11/33 , H02P6/34
摘要： Method of operating an electronically commutated motor, controlled by a board mounted electronic circuit, wherein current surges in such circuit are suppressed while dissipating heat associated with such suppression from motor structure as opposed to the control circuit. The heat associated with control circuit current surge suppression is dissipated into the bowels of the motor as opposed to being dissipated from a heat generating resistor mounted on the control circuit board as has been done heretofore. Illustrated structure includes current surge suppressing special winding turns on the motor core. Such special winding turns are connected with a known electronic control circuit so that power supplied to such circuit is transmitted through the special winding on the motor. Current surges associated with operation of the motor control circuit are then suppressed, during operation, by the special winding inside the motor.
摘要翻译：操作由电路板安装的电子电路控制的电子换向电动机的方法，其中与该控制电路相反，这种电路中的电流浪涌被抑制，同时消耗与电动机结构相关的这种抑制的热量。与控制电路电流浪涌抑制相关联的热量被耗散到电动机的肠道中，而不是像以前那样从安装在控制电路板上的发热电阻器消散。说明结构包括电流浪涌抑制马达内芯上的特殊绕组匝数。这种特殊的绕组匝与一个已知的电子控制电路连接，以便提供给这种电路的电力通过马达上的专用绕组传递。电动机控制电路的运行电流随着电机内部的专用绕组的运转而被抑制。

2. 发明授权

US4200257A Torsional vibration isolating motor mounting system, mounting arrangement, assemblies including the same 失效
标题翻译：扭转隔振电机安装系统，安装布置，包括其的组件
公开(公告)号：US4200257A
公开(公告)日：1980-04-29
申请号：US829666
申请日：1977-09-01
申请人： Ernest W. Litch, III
发明人： Ernest W. Litch, III
IPC分类号： F04D29/28 , F04D29/62 , F16F15/06 , H02K5/24 , H02K7/14 , F25D19/00
CPC分类号： F04D29/626 , F04D29/282 , F16F15/06 , H02K5/24 , H02K7/14
摘要： Motor vibration isolating arrangements and systems using such arrangements are disclosed. In preferred arrangements, leaf spring mounting arms have low torsional spring constants and yet strength to withstand shipping and handling loads. The mounting member spring constants for axial, radial and tilting vibration modes are selected in specific forms so that the characteristic vibration transmissibility ratios for these modes are each close to unity, but so that torsional mode vibration transmissibility is substantially less than unity. In particularly preferred arrangements, sheet steel having a martensitic grain structure is utilized. In some forms, the motor shell constitutes one weldable member and a holding plate is weldable. The spring material is protected by heat sinking from being softening and weakened by conventional welding processes. The heat sinking members also contribute to a very strong fastening scheme.
摘要翻译：公开了使用这种布置的电动机隔振装置和系统。在优选的布置中，板簧安装臂具有低的扭转弹簧常数，并且具有抵抗运输和处理负载的强度。用于轴向，径向和倾斜振动模式的安装构件弹簧常数以特定形式进行选择，使得这些模式的特征振动传递率各自接近于1，但是扭转模振动传递率基本上小于1。在特别优选的布置中，使用具有马氏体晶粒结构的钢板。在一些形式中，电动机壳构成一个可焊接构件，并且保持板是可焊接的。弹簧材料通过常规焊接工艺被软化和削弱而被散热保护。散热构件还有助于实现非常强的紧固方案。

3. 再颁专利

USRE31820E Methods of making torsional vibration isolating motor mounting systems and arrangements 失效
标题翻译：制造扭振隔离电机安装系统和布置的方法
公开(公告)号：USRE31820E
公开(公告)日：1985-01-29
申请号：US101846
申请日：1979-12-10
申请人： Ernest W. Litch, III
发明人： Ernest W. Litch, III
IPC分类号： B23K11/14 , F04D29/28 , F04D29/62 , F16F15/06 , H02K5/24 , H02K7/14
CPC分类号： H02K5/24 , B23K11/14 , F04D29/282 , F04D29/626 , F16F15/06 , H02K7/14 , Y10T29/49844
摘要： Disclosed subject matter includes flexible motor mounting members particularly adapted for vibration induced flexing movement combined with oscillatory movement about a pivot axis at a point of attachment on a blower housing or other support. Short but strong mounting members are provided that have low torsional mode vibration transmissibilities. Leaf spring mounting arms have low torsional spring constants and yet have sufficient strength to withstand shipping and handling loads for motor .Iadd.blower .Iaddend.assemblies and to permit all angle motor mounting. The mounting member spring constants for axial, radial and tilting vibration modes are selected in specific forms so that the characteristic vibration transmissibility ratios for these modes are each close to unity. However, the characteristic torsional mode vibration transmissibility is substantially less than unity. In particularly preferred embodiments of the invention, sheet steel having a martensitic grain structure is utilized to form the mounting members. Bends in this material have a radius of at least seven times the thickness of the material. One method includes forming lugs or mounting members from the selected material and then trapping one end of these members between oppositely facing surfaces of fastening members. In some forms, the motor shell constitutes one fastening member and a holding plate is another fastening member.Iadd., .Iaddend.and it is preferred to capture a motor pad portion of the lug against the motor shell and projection weld the projections from the plate to the motor shell. The free end of the lug is specifically configured to prevent deformation and tearing, and the lugs are extremely easy to mount to a blower housing imply by deflecting the mounting arms (when necessary) with finger pressure so as to align holes in the mounting arms with previously provided holes in the blower housing. In another form, the motor end of mounting lugs are trapped between two pieces of steel that are welded together to form a mounting block having a strap accommodating slot therein.

4. 发明授权

US4063060A Methods of making torsional vibration isolating motor mounting systems and arrangements 失效
公开(公告)号：US4063060A
公开(公告)日：1977-12-13
申请号：US636547
申请日：1975-12-01
申请人： Ernest W. Litch, III
发明人： Ernest W. Litch, III
IPC分类号： F04D29/28 , F04D29/62 , F16F15/06 , F24F7/013 , H02K5/00 , H02K5/18 , H02K5/24 , H02K7/14 , B23K11/14
CPC分类号： F16F15/06 , F04D29/282 , F04D29/626 , H02K5/24 , H02K7/14 , Y10T29/49844
摘要： Disclosed subject matter includes flexible motor mounting members particularly adapted for vibration induced flexing movement combined with oscillatory movement about a pivot axis at a point of attachment on a blower housing or other support. Short but strong mounting members are provided that have low torsional mode vibration transmissibilities. Leaf spring mounting arms have low torsional spring constants and yet have sufficient strength to withstand shipping and handling loads for motor assemblies and to permit all angle motor mounting. The mounting member spring constants for axial, radial and tilting vibration modes are selected in specific forms so that the characteristic vibration transmissibility ratios for these modes are each close to unity. However, the characteristic torsional mode vibration transmissibility is substantially less than unity. In particularly preferred embodiments of the invention, sheet steel having a martensitic grain structure is utilized to form the mounting members. Bends in this material have a radius of at least seven times the thickness of the material. One method includes forming lugs or mounting members from the selected material and then trapping one end of these members between oppositely facing surfaces of fastening members. In some forms, the motor shell constitutes one fastening member and a holding plate is another fastening member and it is preferred to capture a motor pad portion of the lug against the motor shell and projection weld the projections from the plate to the motor shell. The free end of the lug is specifically configured to prevent deformation and tearing, and the lugs are extremely easy to mount to a blower housing simply by deflecting the mounting arms (when necessary) with finger pressure so as to align holes in the mounting arms with previously provided holes in the blower housing. In another form, the motor end of mounting lugs are trapped between two pieces of steel that are welded together to form a mounting block having a strap accommodating slot therein.

5. 发明授权

US4161812A Methods of securing torsionally flexible motor mounting arrangements to supports therefor 失效
标题翻译：将扭转柔性电机安装装置固定到支架上的方法
公开(公告)号：US4161812A
公开(公告)日：1979-07-24
申请号：US829662
申请日：1977-09-01
申请人： Ernest W. Litch, III
发明人： Ernest W. Litch, III
IPC分类号： F04D29/28 , F04D29/62 , F16F15/06 , H02K5/24 , H02K7/14 , B23P11/02
CPC分类号： H02K7/14 , F04D29/282 , F04D29/626 , F16F15/06 , H02K5/24 , Y10T29/49863 , Y10T29/49963
摘要： The disclosure describes flexible motor mounting members particularly adapted for vibration induced flexing movement. In illustrated forms, leaf spring mounting arms have low torsional spring constants and yet have sufficient strength to withstand shipping and handling loads for motor-blower assemblies and to permit all angle motor mounting. The free end of the lug is specifically configured to prevent deformation and tearing, and the lugs are extremely easy to mount to a blower housing simply by deflecting the mounting arms (when necessary) with finger pressure so as to align holes in the mounting arms with previously provided holes in the blower housing.
摘要翻译：本公开描述了特别适用于振动引起的弯曲运动的柔性电动机安装构件。在图示的形式中，板簧安装臂具有较低的扭转弹簧常数，并且具有足够的强度以承受马达 - 鼓风机组件的运输和处理负载，并允许所有角度的电机安装。凸耳的自由端被特别地构造成防止变形和撕裂，并且通过用手指压力偏转安装臂（在必要时），凸耳非常容易地安装到鼓风机壳体上，以便将安装臂中的孔与以前在鼓风机壳体中提供了孔。

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