CN2322511Y - Safety energy-saving electric kettle - Google Patents

Abstract

The utility model relates to an anti-dry burning safe energy-saving electric kettle. The position of the outer wall of the lower part of the kettle body corresponding to the wire leading rods of an electric heating tube is connected with a plug socket; the outer surface of the bottom face of the kettle body is connected with a pressure switch base; the inner of the switch base is provided with a pressure switch which is composed of fixed contact points, a movable contact point piece and a pressure button; a power line terminal in the plug socket is directly connected with the wire leading rod of the electric heating tube in the kettle body through a conducting wire; the other power line terminal is connected with one of the fixed contact points of the pressure switch in the pressure switch base of the kettle body through a conducting wire; the other fixed contact point of the pressure switch leads out the switch base through a conducting wire and is connected with the other wire leading rod of the electric heating tube.

Description

Anti-dry energy-saving safe insulating pot

The utility model relates to the kettle that a kind of family expenses boil water, particularly a kind of Domestic electric kettle.

Existing Domestic electric kettle in use, in case when the water-in-kettle position was lower than electrothermal tube, insulating pot just was in dry-fire condition, and daily civilian goods electrothermal tube commonly used at present can't reach the not bad requirement of dry combustion method basically, therefore usually cause fire thus, even jeopardize personal safety.

The purpose of this utility model is exactly in order to address the above problem, and a kind of have anti-dry function and safe anti-dry energy-saving safe insulating pot are provided.

Technical solution of the present utility model:

A kind of anti-dry energy-saving safe insulating pot, it includes the kettle body, be provided with annular electric heating tube at kettle body inner bottom part, it is characterized in that being connected with connector assembly in the corresponding electrothermal tube of the kettle body bottom outer wall excellent position that goes between, outer surface is connected with the pressure switch seat in kettle body bottom surface, be provided with by fixed contact in this switch base, the pressure switch that movable contact spot film and pressure button are formed, power-line terminal in the connector assembly directly is connected by lead with a lead-in wire rod of the interior electrothermal tube of kettle body, its another power-line terminal links to each other by a fixed contact of the pressure switch in lead and the kettle body pressure switch seat, and another fixed contact of pressure switch is drawn switch base by lead again and is connected with another lead-in wire rod of electrothermal tube.

The utility model application safety protective device guarantees that electrothermal tube do not working under the dewatering state, makes it have the anti-dry function, thus security improve greatly, economical and practical.Protective device of the present utility model is highly sensitive.The insulating pot that with the capacity is 4L is an example, and when water injection rate in the kettle reaches or during greater than 3.1L, the pressure contact switch of kettle bottom is connected power supply automatically, indicator lamp is bright, and electrothermal tube is started working.After the water boiling, steam promotes from the device pronunciation prompting of ringing.When the water-in-kettle amount is evaporated to (this moment, electrothermal tube was still in water) when being less than 2.35L, the power supply automatic disconnection, indicator lamp goes out, and electrothermal tube quits work.Safety, power saving, good energy-conserving effect.When anhydrous, even plug in, protective device also can be cut off the electricity supply automatically in water level is lower than home or kettle, and indicator lamp and electrothermal tube can not worked.Protective device of the present utility model is to use silver contact, and the moment break-make of power supply is good, can effectively reduce the generation of electric arc, increases the service life.Spring in the utility model contact switch protective device adopts the high manganese material to make, and can guarantee the reset function of parts.Power supply indicator of the present utility model is display power supply break-make situation clearly, increases directly perceived, security performance.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structure for amplifying schematic diagram of connector assembly of the present utility model and pressure switch seat;

Fig. 3 is an electrical schematic diagram of the present utility model.

As Fig. 1,2, the utility model includes kettle body 1, and the bottom in kettle body 1 is provided with annular electric heating tube 2, is connected with connector assembly 3 in the lead-in wire rod position of the corresponding electrothermal tube 2 of kettle body 1 bottom outer wall, the inboard arc limit of this connector assembly 3 and kettle body 1 bottom outer wall match, and make them fit and are fixed as one.Be connected with pressure switch seat 4 at kettle body 1 bottom surface outer surface; it is safety guard of the present utility model; in pressure switch seat 4, be provided with the pressure switch of forming by fixed contact 5, movable contact spot film 6 and pressure button 78; power-line terminal 9 in the connector assembly 3 directly is connected by lead with a lead-in wire rod of kettle body 1 interior electrothermal tube 2; its another power-line terminal 9 links to each other by a fixed contact 5 of the pressure switch 8 in lead 18 and the kettle body 1 pressure switch seat 4, another fixed contact 5 of pressure switch 8 draw switch base 4 and electrothermal tube 2 by lead 19 again another go between excellent the connection.

Pressure switch seat 4 of the present utility model should be positioned at the position of rear portion, kettle body 1 bottom surface near connector assembly 3, it with kettle at the bottom of two feets 10 in front constitute gusseted point at the bottom of the kettle, the upper surface of switch base 4 and kettle body 1 bottom surface cementation are one, there is a through hole 11 that matches with pressure button 7 its lower end, pressure button 7 lower ends are an insulation square spigot 12, the through hole 11 that it passes switch base 4 lower ends acts on the supporting surface of placing the kettle body, the top of pressure button 7 is metallic rod 13, these metallic rod 13 lower ends link to each other with insulation square spigot 12, be set with compression spring 14 on it, its upper end is positioned at the shifting chute 15 of switch base 4 upper end inwalls, be installed with movable contact spot film 6 on the metallic rod 13, movable contact spot film 6 is a sheet metal, its middle part has bar-shaped trough, and its two ends link to each other with an end of two oblique springs 16 respectively, and the other end of two oblique springs 16 all is connected with metallic rod 13 lower ends of pressure button 7, on corresponding movable contact spot film 6 bottom surfaces of two ends lower position in switch base 4, be provided with two conduction fixed contacts 5.Connector assembly 3 of the present utility model is provided with a light emitting diode 17, and it is attempted by the two ends of electrothermal tube 2 by resistance R, as Fig. 3.

During the utility model work, earlier attaching plug is inserted on two power-line terminals 9 of connector assembly 3.When in the kettle body 1 during topped up with water, because the setup pressure value of compression spring 14 in the weight overpressure switch 8, then the weight of kettle body 1 makes pressure button 7 move up, its insulation square spigot 12 enters in the pressure switch seat 4, when its metallic rod 13 moves up along the shifting chute 15 of pressure switch seat 4, the bar-shaped trough that movable contact spot film 6 is passed in the inner that drives two oblique springs 16 moves up, the outer end of two oblique springs 16 then oppositely moves down, driving movable contact spot film 6 moves down, it is communicated with two fixed contacts 5, just connected the electric power loop of electrothermal tube 2 this moment, make electrothermal tube in running order, luminous indicating diode 17 luminous indications simultaneously, boiled after, steam promotes the device of the ring certainly pronunciation prompting of electric kettle, reminds owner to cut off the electricity supply.

If meet kettle body 1 interior water more after a little while, no matter be that water-in-kettle is filled it up with owing to evaporating or having forgotten, then kettle body 1 weight is not owing to reach the setting value of the compression spring 14 of pressure switch 8, then pressure button 7 in the raw, its insulation square spigot 12 is positioned at outside the pressure switch seat 4, makes movable contact spot film 6 throw off two fixed contacts 5, makes electrothermal tube 2 loops be in off-state automatically, thoroughly stopped electrothermal tube 2 dry combustion method phenomenons, in kettle, just reworked automatically after the topped up with water.

Claims (3)

1, a kind of anti-dry energy-saving safe insulating pot, it includes the kettle body, be provided with annular electric heating tube at kettle body inner bottom part, it is characterized in that being connected with connector assembly in the corresponding electrothermal tube of the kettle body bottom outer wall excellent position that goes between, outer surface is connected with the pressure switch seat in kettle body bottom surface, be provided with by fixed contact in this switch base, the pressure switch that movable contact spot film and pressure button are formed, power-line terminal in the connector assembly directly is connected by lead with a lead-in wire rod of the interior electrothermal tube of kettle body, its another power-line terminal links to each other by a fixed contact of the pressure switch in lead and the kettle body pressure switch seat, and another fixed contact of pressure switch is drawn switch base by lead again and is connected with another lead-in wire rod of electrothermal tube.

2, by the described insulating pot of claim 1, it is characterized in that described pressure switch seat should be positioned at the position of rear portion, kettle body bottom surface near connector assembly, it with kettle at the bottom of two feets in front constitute gusseted point at the bottom of the kettle, the upper surface of switch base and kettle body bottom surface cementation are one, there is a through hole that matches with the pressure button its lower end, pressure button lower end is an insulation square spigot, its top is metallic rod, this metallic rod lower end links to each other with the insulation square spigot, be set with compression spring on it, the metallic rod upper end is positioned at the shifting chute of switch base upper end inwall, be installed with the movable contact spot film on the metallic rod, the movable contact spot film is a sheet metal, its middle part has bar-shaped trough, and its two ends link to each other with an end of two oblique springs respectively, and the other end of two oblique springs all is connected with the metallic rod lower end of pressure button, on the bottom surface of lower position in switch base, corresponding movable contact spot film two ends, be provided with two conduction fixed contacts.

3, by the described insulating pot of claim 1, it is characterized in that connector assembly is provided with a light emitting diode, it is attempted by the two ends of electrothermal tube by resistance.

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