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Power off reset snap action thermostat

A technology of sudden jump thermostat and power-off reset, applied in the direction of thermal switch components, etc., can solve the problems of complex process, high installation difficulty, unstable product quality, etc., to reduce product cost, simplify structure, product quality and other problems. Quality remains stable

Active Publication Date: 2013-03-27
FOSHAN TIANPENG THERMOSTATS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The electrodes of the PTC heating element of the traditional power-off reset jump type thermostat are respectively arranged on the top surface and the bottom surface, and transition gask

Method used

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Examples

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Example Embodiment

[0048] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the accompanying drawings and embodiments. For reasons of convenience only, in the following description, specific directional terms are used, such as "upper", "lower", "left", "right", etc., which refer to the accompanying drawings and cannot be considered It is restrictive. When the definition direction of the drawing changes, the directions indicated by these words shall be interpreted as corresponding different directions.

[0049] Please refer to Figure 1 to 3 As shown, this is the power-off reset snap thermostat of the first embodiment of the present invention, which includes in order from top to bottom: temperature sensing cover 1, bimetal disc 2, PTC heating element 3, housing 4. The first lead plug 5, the second lead plug 6 and the bottom cover 7 also include an insulating rod 8 (which may be a ceramic rod) penetrated throu...

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Abstract

The invention relates to a power off reset snap action thermostat which comprises a shell, a seal cover, a bottom cover, a double-metal disc, an insulating rod, a fixed contact component, a movable contact component and a PTC (positive temperature coefficient) heating element. The periphery of the double-metal disc is butted on the shell and located in a space enclosed by the seal cover and the shell. The insulating rod is penetratingly disposed in the shell and located below the double-metal disc. The top end of the insulating rod alternatively touches the double-metal disc. The fixed contact component comprises a first conducting column and a fixed contact which are fixedly connected. The movable contact component comprises a second conducting column and a movable contact which are fixedly connected. The fixed contact is located above the movable contact and on the motion travel of the movable contact. The bottom end of the insulating rod is butted on the movable contact component. The PTC heating element is provided with a top face, a bottom face and a lateral face, mounted in the shell, and electrically connected with the first conducting column and the second conducting column to form two electrodes. The two electrodes are located on the same face of the top face, the bottom face and the lateral face of the PTC heating element.

Description

technical field [0001] The invention relates to the technical field of temperature controllers, in particular to a power-off reset snap-type temperature controller. Background technique [0002] At present, some electric heating appliances will be equipped with power-off reset jump type thermostats for overheating protection of electric heating appliances. When the temperature of the electric heating appliance is too high or dry-burned, the power-off reset jump thermostat will automatically protect itself, disconnect the circuit, and only when the power is turned off can the thermostat be reset and powered on. This is based on the characteristics of the bimetal disc. The upper layer of the bimetal disc is a metal with a higher expansion coefficient, which is the "active layer", and the lower layer is a metal with a lower expansion coefficient, which is the "passive layer". The middle part of the disc is protruding upwards, and the whole circuit is in the connected state; wh...

Claims

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Application Information

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IPC IPC(8): H01H37/52H01H37/02
Inventor 张金平冯辉才
Owner FOSHAN TIANPENG THERMOSTATS
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