Solenoid and method of manufacture

Patent metadata

Field	Value
Publication number	US-10871242-B2
Application number	US-201715631191-A
Country	US
Kind code	B2
Filing date	Jun 23, 2017
Priority date	Jun 23, 2016
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

Abstract

A solenoid is provided having an improved connection arrangement. The solenoid includes external wires that are coupled to internal solenoid components via terminals. Further, a sealed solenoid is provided having a housing overmolded onto a solenoid subassembly. External wires can be coupled to the solenoid after overmolding. The solenoid may also include a cavity for receiving at least one of electrical component. The solenoid may also include a powdered metal core.

First claim

What is claimed is:

1. A solenoid comprising:
a bobbin;
a core wire positioned about at least a portion of the bobbin, the core wire forming a coil;
a housing positioned about at least a portion of the coil;
a lid coupled to the housing, the lid and housing defining an interior area;
an external wire extending from outside the housing into the interior area;
a cavity positioned on the housing in the interior area, the cavity positioned adjacent the external wire and sized to accept at least one electrical component;
a first channel and first recess on the housing in the interior area, the first channel extending longitudinally on the housing to accept the external wire and the first recess extending from the cavity to the first channel; and
a second channel and a second recess on the housing, the second channel extending substantially parallel to the first channel, the second recess extending from the second channel to the cavity, wherein the cavity is positioned between the first and second channels.

2. The solenoid of claim 1 wherein the electrical component comprises at least one sensor, microchip, microcircuit, communications device, integrated circuit, and overvoltage device.

3. The solenoid of claim 1 further comprising a wire-to-wire terminal having a first end extending at least partly into an opening in the housing providing contact with a first terminal end of the coil wire and a second end providing contact with the external wire, the wire-to-wire terminal providing an electrical connection between the first terminal end and the external wire.

4. The solenoid of claim 3 , wherein the bobbin includes a flange portion extending at least partially through the opening in the housing, the flange portion including a slot for receiving the first end of the wire-to-wire terminal and the first terminal end of the core wire.

5. The solenoid of claim 1 further comprising a powdered metal core having a flange portion integral with a core portion, the core portion extending at least partially into the bobbin.

6. The solenoid of claim 1 further comprising a cylinder surrounding a least a portion of the coil, the cylinder defining at least one opening whereby a portion of the housing material extends through the cylinder and contacts the coil while still being contiguous with the housing.

7. The solenoid of claim 1 further comprising a filler material in the interior area between the housing and lid.

8. A solenoid comprising:
a bobbin;
a core wire positioned about at least a portion of the bobbin and forming a coil, the core wire having first and second terminal ends;
a housing positioned about at least a portion of the core wire, the housing defining an opening providing access from an exterior side of the housing to the first terminal end;
an external wire extending from outside the housing; and
a wire-to-wire terminal having a first end extending at least partly into the opening in the housing and having a generally V-shaped inner surface to provide contact with the first terminal end of the solenoid coil wire and a second end having a generally V-shaped inner surface to provide contact with the external wire, the wire-to-wire terminal providing an electrical connection between the first terminal end and the external wire.

9. The solenoid of claim 8 further comprising a second wire-to-wire terminal having a first end providing contact to the second terminal end of the solenoid coil wire and a second end coupled to a second external wire.

10. The solenoid of claim 8 wherein the bobbin includes a flange portion extending at least partially through the opening in the housing, the flange portion including at slot for receiving the first end of the wire-to-wire terminal and the first terminal end of the core wire.

11. The solenoid of claim 8 further comprising a powdered metal core having a flange portion integral with a core portion, the core portion extending at least partially into the bobbin.

12. The solenoid of claim 8 further comprising a cylinder surrounding a least a portion of the coil, the cylinder defining at least one opening whereby a portion of the housing material extends through the cylinder and contacts the coil while still being contiguous with the housing.

13. The solenoid of claim 8 further comprising an overvoltage device.

14. The solenoid of claim 8 further comprising a cover, the cover positioned over a channel in the housing, the channel maintaining the external wire in a desired position.

15. The solenoid of claim 8 wherein the housing includes at least two channels extending generally parallel to one another with a cavity adjacent the at least two channels.

16. The solenoid of claim 15 further comprising at least one of a sensor, a microchip, a microcircuit, a communications device, and an overvoltage device positioned in the cavity and coupled to the external wire.

Assignees

• Rain Bird Corp

Inventors

• Markley Kevin James
• Roney Troy Lynn
• Wlassich John James
• Montgomery Randy Ray
• Kwak Chong Wang

Classifications

• F16K31/0675 Primary

  Electromagnet aspects, e.g. electric supply therefor · CPC title

• H01F2007/062

  Details of terminals or connectors for electromagnets · CPC title

• A01G25/16

  Control of watering · CPC title

• H01F5/04

  Arrangements of electric connections to coils, e.g. leads · CPC title

• H01F7/1607

  Armatures entering the winding · CPC title