Flame sensor assemblies and methods of replacing flame sensor assemblies

Patent metadata

Field	Value
Publication number	US-11644196-B2
Application number	US-202117515411-A
Country	US
Kind code	B2
Filing date	Oct 30, 2021
Priority date	Nov 11, 2019
Publication date	May 9, 2023
Grant date	May 9, 2023

Abstract

A flame sensor assembly includes a flame sense rod and a flame sensor body. The flame sense rod includes a flame sensor end and a coupling end opposite the flame sensor. The flame sensor body defines a receptacle for receiving the coupling end of the flame sense rod, and includes an adjustable positioning bracket. The assembly also includes a wiring adapter for connecting the flame sensor body with a flame sense signal connector, and a mounting bracket adapted to mount the flame sensor body to a heating device with the flame sensor end of the flame sense rod positioned adjacent a flame of the heating device. Methods of replacing a flame sensor assembly for a heating device are also disclosed.

First claim

What is claimed is:

1. A flame sensor assembly replacement for a heating device, the flame sensor assembly comprising:
a flame sensor body including an adjustable positioning bracket; and
a mounting bracket adapted to mount the flame sensor body to the heating device for positioning a flame sensor end of a flame sense rod adjacent a flame of the heating device when a coupling end of the flame sense rod is coupled to the flame sensor body.

2. The flame sensor assembly of claim 1 , further comprising a wiring adapter for connecting the flame sensor body with a flame sense signal connector.

3. The flame sensor assembly of claim 1 , wherein the flame sensor body defines a receptacle for receiving a coupling end of a flame sense rod.

4. The flame sensor of claim 3 , wherein the receptacle is located at a first end of the flame sensor body, the flame sensor body further comprising a spade connector located at a second end of the flame sensor body opposite the first end of the flame sensor body.

5. The flame sensor assembly of claim 1 , wherein the flame sensor assembly comprises a flame sense rod including a flame sensor end and a coupling end opposite the flame sensor end.

6. The flame sensor assembly of claim 5 , wherein the mounting bracket is adapted to mount the flame sensor body to the heating device, with the flame sensor end of the flame sense rod positioned adjacent the flame of the heating device.

7. The flame sensor assembly of claim 5 , wherein the flame sensor body defines a receptacle for receiving the coupling end of the flame sense rod.

8. The flame sensor assembly of claim 7 , wherein:
the coupling end of the flame sense rod comprises at least one male thread; and
the receptacle of the flame sensor body includes at least one female thread to receive the at least one male thread of the flame sense rod.

9. The flame sensor assembly of claim 7 , wherein the receptacle is located at a first end of the flame sensor body, the flame sensor body further comprising a spade connector located at a second end of the flame sensor body opposite the first end of the flame sensor body.

10. The flame sensor assembly of claim 5 , wherein the flame sense rod is coupled to the flame sensor body via one of a threaded connection, a bayonet twist lock connection, and a push-in spring load connection.

11. The flame sensor assembly of claim 5 , wherein:
the flame sense rod is a first flame sense rod; and
the first flame sense rod is removable from the flame sensor body to insert a second flame sense rod, the second flame sense rod having a different shape than the first flame sense rod.

12. The flame sensor assembly of claim 11 , wherein the first flame sense rod and the second flame sense rod are removable from the flame sensor body to insert a third flame sense rod, the third flame sense rod having a different shape than the first flame sense rod and the second flame sense rod.

13. The flame sensor assembly of claim 5 , wherein:
the flame sense rod includes a first portion and a second portion;
the first portion includes the flame sensor end;
the second portion includes the coupling end; and
the first portion is bent at an angle with respect to the second portion.

14. The flame sensor assembly of claim 13 , wherein the angle is a ninety degree angle.

15. The flame sensor assembly of claim 1 , wherein:
the flame sensor body comprises a cylindrical body including a longitudinal axis; and
the adjustable positioning bracket comprises a teardrop bracket defining an opening through which the cylindrical body is received, the teardrop bracket movable to multiple positions along the longitudinal axis of the cylindrical body.

16. The flame sensor assembly of claim 15 , wherein the teardrop bracket is adapted to clamp at one of the multiple positions along the longitudinal axis to inhibit movement of the teardrop bracket while the teardrop bracket is clamped.

17. The flame sensor assembly of claim 1 , wherein the mounting bracket includes multiple mounting surfaces, each mounting surface defining multiple openings for mounting the mounting bracket to different heating devices, whereby the flame sensor assembly is configurable for use as a universal replacement of an original equipment manufacturer (OEM) flame sensor assembly of any one of the different heating devices.

18. The flame sensor assembly of claim 1 , further comprising a wiring adapter for connecting the flame sensor body with a flame sense signal connector, and wherein:
the flame sense signal connector is a first flame sense signal connector;
the wiring adapter is a first wiring adapter having a first wiring connector type for connection to the first flame sense signal connector; and
the first wiring adapter is removable from the flame sensor body to connect a second wiring adapter to the flame sensor body, the second wiring adapter having a second wiring connector type different than the first wiring connector type, to connect the second wiring adapter to a second flame sense signal connector different than the first flame sense signal connector.

19. The flame sensor assembly of claim 1 , wherein the flame sensor assembly is adapted to generate a flame sensor reading current value between two μA and six μA.

20. A heating system device comprising the flame sensor assembly of claim 1 , wherein the heating system device comprises one of an HVAC system component, a boiler, a commercial gas dryer, a food preparation device, and a gas pool heater.

Assignees

• Emerson Electric Co

Inventors

• Vie David L

Classifications

• F23N5/12 Primary

  using ionisation-sensitive elements, i.e. flame rods · CPC title

• F23N2900/05004

  Details of components, e.g. connecting adaptors · CPC title

• F23N2229/22

  the sensor's sensitivity being variable · CPC title

• F23N5/265

  using electronic means · CPC title

• F23N5/26 Primary

  Details · CPC title