CN2107218U

CN2107218U - Automatic power-off electric kettle

Info

Publication number: CN2107218U
Application number: CN 91218918
Authority: CN
Inventors: 彭玉林; 高大全
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-07-22
Filing date: 1991-07-22
Publication date: 1992-06-17

Abstract

The utility model relates to an automatic power-off electric kettle which comprises a kettle cover (1), a kettle body (2), a hand-lifting beam electrothermal core (5), a plug, a socket, etc. The utility model is characterized in that a floater (3) and a magnetic body (8) connected together by a transmission rod (7) in the kettle body are fixed on the kettle body through a supporting seat (6). At ordinary times, the floater sinks, and the magnetic body leans against the inner wall; a button (11), a ferromagnet (9) and an electrical node (12) are connected together. The power is switched on for heating by pushing the button. When the water is boiled, the floater is impacted by water to float upwards under the function of buoyancy, and the magnetic body is away from the inner wall. The ferromagnet loses attraction and is ejected out under the function of a spring (10). The electrical node is switched off, namely that the power is cut automatically. The utility model has simple structure.

Description

Automatic power-off electric kettle

The utility model relates to a kind of insulating pot, particularly relates to a kind of insulating pot of automatic outage.

Though the insulating pot of using in the society is heated up water very convenient now, but service time is of a specified duration, or heating core is just burnt in improper use easily, the mode that people are cut off the power supply for the employing electronic temperature measurement that addresses these problems, but there is the flimsy shortcoming of electronic component, exists incrustation scale to cause the reciprocal inflexible shortcoming of piston and adopt piston to promote connecting rod outage source.

The purpose of this utility model is to provide a kind of water to open in order to overcome above-mentioned shortcoming can to cut off the electricity supply automatically, make the unlikely insulating pot that burns of heating core.

The utility model is to realize like this, insulating pot comprises that pot lid (1) kettle body (2) heating core (5) has under the normal temperature situation in extreme lower position in the kettle body, below the float that under ascending current and buoyancy, can float automatically when water boils (3), can produce the magnet (8) of magnetic force and float (3) is rigidly connected and be fixed on the kettle body (2) by supporting seat (6), magnet (8), ferromagnet (9), electrical nodes (12), spring (10), knob (11) is connected together successively, socket (16) has power line (14) one ends and float to join in external side of kettle and plug (15) joint, and its middle part of the drive link that the other end and magnet join (7) is fixed in the last protecting cover (13) of supporting seat (6) by axle and is buckled on the socket (16).

Good effect of the present utility model is: after the water that is burnt reaches boiling point, can cut off the power supply automatically, it is unlikely because water is burnt when water level is lower than heating core and causes heating core to burn, the water boiling will be cut off the power supply, thus can save power supply, because of pure frame for movement, so it is simple and reliable, there is not the dumb and electronic component damage problem of piston type and the activity of electronic temperature measurement formula,, thereby do not have the outer flow problem of water because the kettle inside and outside is to finish with the magnetic contact.

Below with reference to accompanying drawing the utility model is described in further detail.

Fig. 1 is the cutaway view of the utility model along the portable beam direction;

Fig. 2 is power principle figure of the present utility model;

As shown in Figure 1, when water injects kettle body (2), the water surface rises when surpassing float (3), float (3) begins come-up, there is steam vent (4) outwards constantly to get rid of the interior gas of float (3) on the float, when water had been annotated, the gas in the float arrange substantially, and float is promptly under the deadweight effect and arrive the bottom, drive link (7) is a rigid body, the one end is fixed in float (3), other end fixed magnets (8), and its middle part is fixed on the supporting seat (6) by axle, when float (3) arrives the bottom down, magnet (8) abuts against on the kettle body this moment, plugs in, and electricity is delivered to electrical nodes (12) and located.Pressing knob (11) ferromagnet (9) is held by magnet (8), electrical nodes this moment (12) is in conducting state, heating core begins water is heated, the star bubble in addition that produces in the heating process is constantly discharged from steam vent (4), during the water boiling, a large amount of bubbles produce, steam vent (4) is discharged the vapor volume that tolerance produces less than the heat that heating core sent, beginning gas collection in the float (3), buoyancy when the gas collection generation, the elastic force of the impulse force of the generation of updraft and spring (10) is big and greater than after gravitation and the float deadweight between magnet (8) and the ferromagnet (9), and magnet (8) leaves Hu Bi, and ferromagnet (9) ejects to the external side direction of kettle under the effect of spring (10), electrical nodes (12) disconnects, promptly finish automatic outage, water stops boiling, and kettle is in original state again.

As shown in Figure 2, ferromagnet (9) knob (11) electrical nodes (12) connects together, and power supply 220V powers up for when knob is pressed heating core (5).

Claims

1, a kind of insulating pot, it comprises pot lid (1) kettle body (2) kettle portable beam heating core (5), power line (14) plug (15) socket (16), it is characterized in that: have in the kettle body under the normal temperature situation in extreme lower position, the float that under ascending current and buoyancy, can float automatically when water boils (3), can produce the magnet (8) of magnetic force and float (3) is rigidly connected and be fixed on the kettle body (2) by supporting seat (6), ferromagnet (9), electrical nodes (12) spring (10) knob (11) is connected together successively; Drive link (7) other end and the float (3) that join with magnet join, and the middle part is fixed on the supporting seat (6) by axle.