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Solenoid with bobbin hub bosses that reverse turns

A technology of a solenoid and a raised part is applied in the field of starter motor components, which can solve the problems of insufficient flexibility, not allowing two layers of turns, and difficulty.

Active Publication Date: 2015-07-29
REMY TECHNOLOGIES LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] While the above means for increasing the resistance of a coil without increasing its ampere-turn excitation provides a degree of flexibility to the designer, sometimes that degree of flexibility is not sufficient
For example, due to space or resistance reasons, design constraints may not allow all two layer turns to be reversed
In addition, the traditional design is not easy to realize the reverse design of the innermost layer of the coil

Method used

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  • Solenoid with bobbin hub bosses that reverse turns
  • Solenoid with bobbin hub bosses that reverse turns
  • Solenoid with bobbin hub bosses that reverse turns

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] refer to figure 1 , the holder for the solenoid coil is shown in the form of a bobbin 50 . The spool 50 includes a first end flange 52 , a second end flange 54 , and a hub 56 extending between the first end flange 52 and the second end flange 54 . Flanges 52 and 54 are disks with a central hole that allows the push rod to move in the axial direction through the center of the bobbin.

[0023] The hub 56 of the bobbin 50 is generally cylindrical in shape and provides the coil holding surface for the solenoid coil. Although in figure 1 In the illustrated embodiment the hub 56 is shown as a right cylinder, but it will be appreciated that the hub 56 may take on other shapes, including cylindrical and non-cylindrical shapes. Furthermore, the term "spool" as used herein refers to any suitable solenoid coil holder, whether or not the hub is configured as a cylinder, or whether a flange is included on the end of the hub.

[0024] The boss 60 is provided on the hub body 56 ...

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PUM

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Abstract

A solenoid arrangement for a starter motor includes a plunger configured to move in an axial direction and a coil positioned radially outward from the plunger. The coil is wound on a spool that includes a first end and a second end with a hub extending between the first end and the second end. A projection is positioned on the hub of the spool. The coil engages the projection in such a manner that a winding direction of the coil is reversed at the projection.

Description

technical field [0001] This application relates to the technical field of starter motor assemblies, and more particularly, to solenoid assemblies for starter motors. Background technique [0002] Starter motor assemblies that assist in starting an engine, such as an engine in a vehicle, are known. A conventional starter motor assembly generally includes an electric motor and a drive mechanism. When the ignition switch is turned on, the electric motor is energized by the battery. The drive mechanism transmits the torque of the electric motor to the gear of the flywheel of the engine through various components, thereby driving the engine until the engine starts. [0003] During operation of the starter motor, closure of the ignition switch (usually by turning the key) energizes the solenoid and, in some motors, applies some power to the motor. Energization of the solenoid moves the solenoid shaft (also referred to herein as the "push rod") in an axial direction. The soleno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H50/20
CPCH01F7/1623H01F7/1805H01F7/127H01F5/02H02K57/006H01F2005/022H02K99/20Y10T29/49071F02N11/00F02N15/00H02K7/00
Inventor M·D·布拉德菲尔德
Owner REMY TECHNOLOGIES LLC