Cooktop appliance and temperature switch

Patent metadata

Field	Value
Publication number	US-10627115-B2
Application number	US-201715675832-A
Country	US
Kind code	B2
Filing date	Aug 14, 2017
Priority date	Aug 14, 2017
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

A cooktop appliance is provided including a top panel, an electric heating element, a drip pan, and a temperature switch. The drip pan may be attached to the top panel and positioned below the electric heating element. A switch bracket may be mounted to the top panel and may include a cantilevered mounting plate that is biased toward or interferes with the drip pan. The temperature switch may be mounted to the mounting plate using two elongated pins passing through two apertures in the mounting plate such that the temperature switch may pivot relative to the mounting plate and self-align with the drip pan. The temperature switch may be operable to limit the power supplied to the electric heating element at a predetermined temperature.

First claim

What is claimed is:

1. A cooktop appliance comprising:
a top panel;
an electric heating element positioned at the top panel;
a drip pan attached to the top panel and positioned below the electric heating element;
a switch bracket attached to the top panel and defining an aperture having a first diameter; and
a temperature switch operably coupled to the electric heating element to limit the power supplied to the electric heating element at a predetermined temperature, the temperature switch being mounted to the switch bracket by one or more elongated pins, each elongated pin passing through the aperture in the switch bracket such that the temperature switch engages the drip pan, wherein each of the elongated pins has a second diameter that is less than the first diameter to permit movement of the temperature switch relative to the switch bracket.

2. The cooktop appliance of claim 1 , wherein the switch bracket includes a resilient arm biased towards the drip pan.

3. The cooktop appliance of claim 2 , wherein the resilient arm is bent to define a first segment and a second segment, the first segment extending along a first axis and the second segment extending along a second axis not parallel to the first axis.

4. The cooktop appliance of claim 1 , wherein each elongated pin comprises two end caps and defines a pin length measured between the two endcaps.

5. The cooktop appliance of claim 4 , wherein the pin length is greater than two times a thickness of a mounting plate of the switch bracket.

6. The cooktop appliance of claim 4 , wherein the pin length is approximately 0.090 inches.

7. The cooktop appliance of claim 1 , wherein the one or more elongated pins comprise two elongated pins that are spaced apart along a pivot axis to allow the temperature switch to pivot about the pivot axis and self-align with the drip pan.

8. The cooktop appliance of claim 1 , wherein wherein a ratio of the first diameter to the second diameter is between about 1.05 and 1.2.

9. The cooktop appliance of claim 8 , wherein the first diameter is approximately 0.140 inches and the second diameter is approximately 0.125 inches.

10. The cooktop appliance of claim 1 , wherein the temperature switch is configured for pivoting through a pivot angle of between about 5 degrees and 15 degrees.

11. The cooktop appliance of claim 1 , wherein the temperature switch is electrically connected in series with the electric heating element.

12. The cooktop appliance of claim 1 , wherein the drip pan includes a concave sidewall, and wherein the temperature switch includes a flat face-plate in contact with the concave sidewall of the drip pan.

13. The cooktop appliance of claim 1 , wherein the temperature switch is a bimetallic temperature switch.

14. A cooktop appliance comprising:
a top panel;
an electric heating element positioned at the top panel;
a drip pan attached to the top panel and positioned below the electric heating element;
a switch bracket attached to the top panel and extending toward the drip pan, the switch bracket comprising a cantilevered mounting plate defining two apertures spaced apart along a pivot axis, each of the two apertures having a first diameter; and
a temperature switch mounted to the mounting plate by two elongated pins passing through the two apertures, each elongated pin defining a pin length that is greater than a thickness of a mounting plate of the switch bracket such that the temperature switch may pivot along the pivot axis to self-align with the drip pan, wherein each of the elongated pins has a second diameter that is less than the first diameter to permit movement of the temperature switch relative to the switch bracket.

15. The cooktop appliance of claim 14 , wherein the temperature switch is operably coupled to the electric heating element to limit a power supplied to the electric heating element at a predetermined temperature.

16. The cooktop appliance of claim 14 , wherein the switch bracket includes a resilient arm defining a first segment and a second segment, the first segment extending along a first axis and the second segment extending along a second axis not parallel to the first axis.

17. The cooktop appliance of claim 14 , wherein the pin length is greater than two times the thickness of the mounting plate of the switch bracket.

18. The cooktop appliance of claim 14 , wherein a ratio of the first diameter to the second diameter is between about 1.05 and 1.2.

19. The cooktop appliance of claim 14 , wherein the temperature switch is configured for pivoting through a pivot angle of between about 5 degrees and 15 degrees.

20. The cooktop appliance of claim 14 , wherein the temperature switch is electrically connected in series with the electric heating element.

Assignees

• Haier Us Appliance Solutions Inc

Inventors

• Armstrong James Lee

Classifications

• H05B1/0266

  Cooktops · CPC title

• H05B2213/04

  Heating plates with overheat protection means · CPC title

• F24C7/088 Primary

  on stoves · CPC title

• F24C7/087 Primary

  of electric circuits regulating heat · CPC title