Thermal sensing controller and corresponding electric water heater
A thermosensitive, electric water heater technology, applied in the direction of electric heating devices, water heaters, fluid heaters, etc., can solve the problems of not being able to play an insurance function, not being able to ensure that the electrical contacts are separated, and not being sufficient to provide safety protection, etc., to achieve Avoid the effect of repeated dry burning
Active Publication Date: 2009-08-26
NINGBO GOODFRIENDS ELECTRIC APPLIANCE
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AI Technical Summary
Problems solved by technology
At this time, even if the fuse safety device operates, it cannot guarantee that the connected electrical contacts can be separated.
At this time, the fuse protection device cannot play the final insurance function.
[0005] Therefore, consumers have higher and higher requirements for electrical safety, and the above technical solutions are not enough to provide reliable safety protection.
Method used
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[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0028] Such as figure 1 As shown, it is a three-dimensional structure diagram of the thermosensitive controller of the present invention. It can be seen from the figure that the thermosensitive controller 1 includes a housing 5, a cover 4, a bimetallic actuator 3 for overheating induction, a fixed sleeve 8, a reset lever 6 and three connecting rods. The plug pins 71, 72, 73 of the power supply (wherein 72 is a plug pin for grounding). Wherein the cover body 4 has two holes 101, 102 for receiving the lead-out rods of the electric heater. The bimetallic actuator 3 is fixed on the cover body 4 through a hollow annular fixing sleeve 8, and the bimetallic actuator 3 has a certain retraction space at this time. The fixing sleeve 8 is fixed on the cover body by two screws 91,92. The hollow circular fixed sleeve 8 has an outstretched arm 81 on one ...
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The invention discloses a thermosensitive controller applied in an electric water heater, which has a casing and a cover installed on the casing, and the thermosensitive controller includes a thermosensitive steam switch and an overheat protector 1. The fuse safety device, which is connected in series with the power supply path in the housing by means of an electrical connecting piece, and each of the overheat protector and the fuse safety device is provided with a switch node, and these two switch nodes are independent of each other, and the second One side of the elastic piece is provided with a folded edge at a certain angle, and the folded edge can lock the second movable electrical connecting piece after the second moving contact and the second static contact are separated, and the end of the second elastic piece passes through a The touch bending edge forms a tactile connection with a manual return mechanism. Since the corresponding moving contacts of the overheating protector and the fuse safety device are completely independent, it is ensured that the electrical contacts of the fuse safety device can be reliably separated when the fuse safety device operates. Since the bayonet device is set in the overheat protection device, repeated dry burning is avoided.
Description
technical field [0001] The invention relates to a thermosensitive controller, in particular to a thermosensitive controller applied to an electric water heater. Background technique [0002] Electric water heaters, especially electric water heaters such as electric kettles, generally require a controller to control the power on and off of electrical appliances, so as to control the temperature of the liquid. In practical applications, the heat-sensitive controller of mechanical structure is the most commonly used and simplest control system for controlling electrical on-off. Usually this thermosensitive controller is mounted together with an electric heater for better thermal contact. This thermosensitive controller is usually a collection of several functions, generally there are vapor type thermosensitive switches, snap-type overheating protectors made of recoverable bimetallic materials, and plastic (or metal) fuse fuses. For the electric water heater using the immersio...
Claims
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IPC IPC(8): F24H9/20F24H1/00
CPCH05B1/0202H01H37/002H05B3/78
Inventor 朱纪忠
Owner NINGBO GOODFRIENDS ELECTRIC APPLIANCE