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Dry burning protection switch with draw hook and temperature control assembly using same

A technology of anti-dry heating and switching, which is applied in the direction of electric switches, thermal switches, thermal switch components, etc., can solve the problem that the inner pot cannot be protected immediately by power failure, and achieve reliable mechanical stability and simple operation

Pending Publication Date: 2016-12-14
梁炜畅 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the electric rice cooker heated by a heating plate controlled by a sudden jump thermostat or a thermistor cannot be immediately powered off for protection when the inner pot is taken out, and only overheating protection methods such as thermal fuses can be adopted. This protection method is passive protection, and when overheating protection occurs, it is necessary to replace the thermal fuse or temperature control assembly

Method used

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  • Dry burning protection switch with draw hook and temperature control assembly using same
  • Dry burning protection switch with draw hook and temperature control assembly using same
  • Dry burning protection switch with draw hook and temperature control assembly using same

Examples

Experimental program
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Effect test

Embodiment 1

[0037] As a preferred embodiment, such as Figure 7 , 8 , 9. The temperature control assembly provided by the present invention includes the above-mentioned anti-dry switch 1 with a single-arm hook, and an inner aluminum cover 170 is provided above the guide frame 12, and an accommodation chamber is provided on the top of the guide frame 12 120, the accommodating cavity 120 is provided with a bimetallic sheet 2, and also includes a heat conduction cover 3 provided with a skirt 31 and a fixing seat 4 arranged under the heat conduction cover 3, and the fixing seat 4 is provided with supporting feet upward 41, the skirt 31 of the heat conduction cover 3 is set on the support foot 41, a spring 5 is provided between the skirt 31 of the heat conduction cover 3 and the fixing seat 4, and the inner aluminum cover 170 is tightly Attached to the inner top surface of the heat conduction cover 3 , the hook arm 110 extends downward through the fixing seat 4 and has a bent portion 111 at t...

Embodiment 2

[0040] As another implementation, such as Figure 10 , 11 , the temperature control assembly provided by the present invention includes the above-mentioned anti-dry switch 1 with a single-arm pull hook, an aluminum cover 17 is provided above the guide frame 12, and a heat-sensitive switch is provided on the inner top surface of the aluminum cover 17. The resistor 6 also includes a fixing base 4 arranged below the aluminum cover 17, the aluminum cover 17 is provided with a skirt 171, the fixing base 4 is provided with supporting feet 41 upward, and the skirt 171 of the aluminum cover 17 Threaded on the support foot 41, a spring 5 is provided between the skirt 171 of the aluminum cover 17 and the fixing seat 4, the hook arm 110 extends downward through the fixing seat 4 and the end is provided There is a bending part 111, the bending part 111 is located below the bottom of the spring 5, the fixing seat 4 is provided with a hollow part 420 for the hook arm 111 to pass through, a...

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Abstract

The invention provides a dry burning protection switch easy to reset and with a draw hook. Electrical connection between a movable contact assembly and a fixed contact assembly can be cut off at any time by operating the draw hook. The switch comprises the draw hook, a guiding frame, a push rod penetrating through the middle part of the guiding frame, the movable contact assembly pressing against the lower part of the push rod, the fixed contact assembly electrically connected with the movable contact assembly in a separable mode, and a base for installing the movable contact assembly and the fixed contact assembly in sequence from top to bottom, wherein the top of the push rod presses against the draw hook, the draw hook and the push rod move in the same direction, and a draw hook arm of the draw hook extends out of the guiding frame; a top groove for installing the draw hook is formed in the top of the guiding frame, and the guiding frame and the base are separated or integrated. The invention further provides a temperature control assembly using the dry burning protection switch with the draw hook. The dry burning protection switch can realize timely power-off protection when an inner pot of an electric rice cooker is not present or is taken out, and can also be used for limiting the temperature when the inner pot of the electric rice cooker cooks rice normally or automatically recovering overheat protection.

Description

technical field [0001] The invention relates to the technical field of household electrical appliances, in particular to an anti-boiling switch with a pull hook and a temperature control assembly using the switch. Background technique [0002] At present, the electric rice cooker heated by a heating plate controlled by a sudden jump thermostat or a thermistor cannot be immediately powered off for protection when the inner pot is taken out, and only overheating protection methods such as thermal fuses can be adopted. This protection method is passive protection, and the thermal fuse or temperature control assembly needs to be replaced when overheating protection occurs. Contents of the invention [0003] The primary purpose of the present invention is to provide an easy-to-reset anti-boil-dry switch with a pull hook, which can disconnect the electrical connection between the movable contact assembly and the fixed contact assembly at any time through the operation of the pul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H37/54
CPCH01H37/54H01H2037/549
Inventor 梁炜畅韦科宏
Owner 梁炜畅
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