Actuator assembly with spacers

1. An actuator comprising:

a housing;

an output gear disposed within the housing;

a spindle connected to the output gear;

an output nut connected to the spindle, the spindle being rotatable within the output nut to enable linear motion of the output nut, and the output nut comprising a connector; and

a first spacer configured to be coupled to the connector of the output nut such that the first spacer has a first height from a bottom surface of the output nut when the first spacer is coupled to the connector of the output nut; and

a second spacer configured to be coupled to the connector of the output nut such that the second spacer has a second height from the bottom surface of the output nut when the second spacer is coupled to the connector of the output nut, the second height different from the first height;

wherein at least one of the first spacer or the second spacer is selectively coupled to the connector of the output nut.

2. The actuator of claim 1 , wherein the connector includes a radially projecting connection surface and the first spacer comprises a first end and a second end, the first end comprising a plurality of flexible ribs extending away from the second end of the first spacer, the plurality of flexible ribs configured to engage the radially projecting connection surface.

3. The actuator of claim 2 , wherein the plurality of flexible ribs are radially movable to snap fit with the radially projecting connection surface of the connector.

4. The actuator of claim 2 , wherein each rib in the plurality of flexible ribs comprises a snap channel and a snap portion, the snap channel extending from the first end of the first spacer axially away from the second end of the first spacer, the snap portion extending radially inward from an end of the snap channel.

5. The actuator of claim 2 , wherein the second end of the first spacer comprises a spacer connector, the spacer connector configured to receive the second spacer, the second spacer comprising a second plurality of flexible ribs configured to engage the spacer connector.

6. The actuator of claim 1 , wherein the first spacer comprises a first end and a second end, the first end comprising a plurality of flexible ribs extending away from the second end of the first spacer, the plurality of flexible ribs disposed around a circumference of the first end to form a mounting surface.

7. The actuator of claim 6 , wherein a surface gap is disposed between each flexible rib in the plurality of flexible ribs and the mounting surface.

8. The actuator of claim 6 , wherein a rib gap is disposed between each flexible rib in the plurality of flexible ribs and an adjacent flexible rib in the plurality of flexible ribs.

9. The actuator of claim 1 , further comprising a valve, the actuator mounted on the valve, wherein the at least one of the first spacer or the second spacer is in contact with a valve stem of the valve.

10. The actuator of claim 9 , wherein the linear motion of the output nut downward causes the at least one of the first spacer or the second spacer to move axially downward and contact the valve stem and move the valve stem linearly downward.

11. The actuator of claim 1 , further comprising a gear train, a motor, and circuit board, the motor operably connected to and controlled by the circuit board, and the gear train operably connected to the motor, the gear train operably connected to the output gear.

12. The actuator of claim 1 , further comprising an adaptor rotatably secured to the output gear, the adaptor defining an adaptor opening and comprising a first portion;

wherein the housing defines a channel wall opening;

wherein the first portion is disposed within the channel wall opening;

wherein the spindle comprises a second portion that is disposed within the adaptor opening; and

wherein the output nut comprises a third portion that is disposed within the adaptor opening.

13. An actuator comprising:

a housing defining comprising:

an internal volume and a channel wall opening;

an output gear disposed within the internal volume;

a nut disposed within the channel wall opening;

a spindle at least partially disposed within the channel wall opening, threadably coupled to the nut, rotatable relative to the nut such that rotation of the spindle relative to the nut causes linear translation of the nut relative to the spindle, and rotatably coupled to the output gear such that rotation of the output gear relative to the housing causes rotation of the spindle relative to the housing;

a first spacer configured to be coupled to the nut such that the first spacer has a first height from a bottom surface of the nut when the first spacer is coupled to the nut; and

a second spacer configured to be coupled to the nut such that the second spacer has a second height from the bottom surface of the nut when the second spacer is coupled to the nut, the second height different from the first height;

wherein at least one of the first spacer or the second spacer is selectively coupled to the nut.

14. The actuator of claim 13 , wherein:

the housing comprises:

an outer wall that at least partially defines the internal volume; and

a channel wall extending from the outer wall, the channel wall being substantially cylindrical, defining the channel wall opening, and comprising:

an interior end at least partially projecting into the internal volume; and

an exterior end opposite the interior end; and

the channel wall is contiguous with the outer wall at a location between the interior end and the exterior end.

15. The actuator of claim 14 , further comprising an adaptor comprising:

a first adaptor wall that is received within the channel wall and disposed proximate the exterior end; and

a second adaptor wall that is received within the channel wall and receives the nut and configured to cooperate with the nut to establish a fluid tight seal between the second adaptor wall and the nut.

16. The actuator of claim 15 , wherein:

the at least one of the first spacer or the second spacer is disposed within the first adaptor wall; and

the nut comprises a connector that is rotatably coupled to the at least one of the first spacer or the second spacer such that rotation of the nut relative to the channel wall causes rotation of the at least one of the first spacer or the second spacer relative to the channel wall.

17. The actuator of claim 15 , wherein the adaptor further comprises a snapping structure that is rotatably coupled to the output gear such that rotation of the output gear relative to the channel wall causes rotation of the adaptor relative to the channel wall.

18. The actuator of claim 13 , further comprising a motor disposed within the internal volume, operatively coupled to the output gear, and configured to selectively cause rotation of the output gear.

19. The actuator of claim 18 , further comprising a processing circuit disposed within the internal volume, communicable with the motor, and configured to facilitate selective rotation of the output gear.

20. An actuator comprising:

a housing defining:

an internal volume and a channel wall opening;

an output gear disposed within the internal volume;

a nut disposed within the channel wall opening;

an adaptor comprising:

a first adaptor wall that is received within the channel wall opening;

a second adaptor wall that is received within the channel wall opening and receives the nut and is configured to cooperate with the nut to establish a fluid tight seal between the second adaptor wall and the nut; and

a snapping structure that is rotatably coupled to the output gear such that rotation of the output gear relative to the housing causes rotation of the adaptor relative to the housing; and

a first spacer configured to be coupled to the nut such that the first spacer has a first height from a bottom surface of the nut when the first spacer is coupled to the nut; and

a second spacer configured to be coupled to the nut such that the second spacer has a second height from the bottom surface of the nut when the second spacer is coupled to the nut, the second height different from the first height;

wherein at least one of the first spacer or the second spacer is selectively coupled to the nut.

21. The actuator of claim 20 , wherein:

the at least one of the first spacer or the second spacer is disposed within the first adaptor wall; and

the nut comprises a connector that is rotatably coupled to the at least one of the first spacer or the second spacer such that rotation of the nut relative to the housing causes rotation of the at least one of the first spacer or the second spacer relative to the housing.