CN2862902Y

CN2862902Y - Safety control device of electrical pressure cooker

Info

Publication number: CN2862902Y
Application number: CN 200520065267
Authority: CN
Inventors: 何志刚; 郑启坚; 黄志斌; 郑惠
Original assignee: AIDE ELECTRIC APPLIANCE Co Ltd SHUNDE DISTRICT FOSHAN CITY
Current assignee: Foshan Shunde Aide Industry Co., Ltd.
Priority date: 2005-10-08
Filing date: 2005-10-08
Publication date: 2007-01-31
Anticipated expiration: 2015-10-08

Abstract

The utility model discloses a safety control device of electric pressure cooker comprising of temperature sensor arranged in the central hole of heating tray. The utility model is characterized in that: a heat insulator is provided between the external surface of temperature sensor and heating tray. Two pins of temperature sensor and the control circuit are electrically connected to form a temperature control signal switch. Upper part of the sensor is a metal heat-transfer part and the lower part connects with insulator. Both upper and lower horizontal surface of the insulator are provided with convex hard contact. Besides, the heat insulator on the upper hard contact is correspondingly configured with downward convex hard contact. Both hard contacts are electrically connected with the control circuit to form signal indicating whether internal cooker should be arranged or switched on/off. Lower part of hard contact on bottom of horizontal surface is accordingly arranged with hard contact. Those two hard contacts are electrically connected with control circuit to create pressure signal or pressure switch. Temperature control precision of the utility model can be kept in the expected scope. The utility model needs less power consumption and can be safely utilized.

Description

A kind of safety control of electric pressure cooking saucepan

Technical field

The utility model relates to a kind of electric pressure cooking saucepan, particularly a kind of safety control of electric pressure cooking saucepan.

Background technology

The electric pressure cooking saucepan of prior art generally all is to adopt pressure-controlled structure, promptly the pressure control assembly is set in the heat-generating disc bottom of electric pressure cooking saucepan, the employing one stroke switch that has, travel switch is connected with control circuit, when pot inner pressure acquires a certain degree, interior pot moves down the touching travel switch, even control circuit heat-generating disc outage, thereby reach the purpose of temperature-control pressure-control, as application number is 00227653, the applying date is on March 27th, 2000, open/day for announcing is January 10 calendar year 2001, denomination of invention is: the patent application of " a kind of pressure controlled electric pressure cooker ", and this voltage-controlled electric pressure cooking saucepan is by pot cover, shell, outer pot, be enclosed within the interior pot in the outer pot, parts such as heat-generating disc in being located under the bottom of a pan and heating Control Component are formed.Outer pot bottom is a thin plate, and the feet of heat-generating disc is the ring-shaped flat bottom structure, and heat-generating disc places between the outer the bottom of a pan and the interior the bottom of a pan, and the outer pot lower bottom part is provided with the one stroke switch, and travel switch is connected with the heating circuit.A kind of mode as the electric pressure cooking saucepan security control, though said structure has safe and reliable advantage, but its limitation is arranged also in the use, as the kitchen operation of modes such as can't frying, can't carry out long heat-insulation pressure keeping, temperature can't remain within the accurate scope, the electric pressure cooking saucepan power consumption of this structure is big, function singleness, the scope of application is little, limitation is big, security is not high, cost is high, service life is short.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and the safety control of the electric pressure cooking saucepan that a kind of temperature can remain within certain accurate scope, power consumption is little, safe in utilization is provided.

Goal of the invention of the present utility model is achieved by the following technical solution:

The safety control of a kind of electric pressure cooking saucepan of the utility model, comprise the temperature sensor of being located in the heat-generating disc mesopore, two signal pins of temperature sensor and the control circuit temperature control signals switch that is electrically connected to form, be provided with a heat-proof device between the periphery of temperature sensor and the heat-generating disc, the top of temperature sensor is the metal heat transfer body, its lower end is fixedly connected with insulator, the insulator horizontal plane is provided with the hard contact of projection up and down, the heat-proof device corresponding section of the hard contact top on its top is provided with the hard contact to lower convexity, whether two hard contacts and control circuit are electrically connected to form places the signal or the switch of interior pot, corresponding position, the basifacial hard contact of its level below also is provided with hard contact, two hard contacts and control circuit be electrically connected to form pressure signal or pressure switch.

Described hard contact bottom can adopt the adjustment screw that is fixed on the safety control bottom; Insulator horizontal plane hard contact up and down also can adopt the metallic rod of integral type, and the hard contact of its lower plane also can adopt adjustment screw, thereby the sensed pressure of electric pressure cooking saucepan can be regulated.

Heat-proof device described in the utility model is a thermal insulation circle, and material can be bakelite.

Seal described in the utility model can be bakelite, and this seal and metal heat transfer body constitute cap-like structure and be buckled on the temperature sensor.

The utility model can reach following beneficial effect after adopting said structure:

1, because under the state of sealing, kettle temperature and steam pressure have fixing corresponding relation, and this relation is not subjected to ambient temperature and effects of air pressure, thereby as long as the control kettle temperature can reach the purpose of steam pressure in the control pot, the utility model is to set about from temperature control, can control interior pot temperature preferably;

2, owing to adopted heat-proof device between temperature sensor and the heat-generating disc, thus make temperature sensor can be accurately internally pot carry out temperature-sensitive, its temperature control realizes the more accurate safety of pressure controling mode than the displacement that passes through of traditional electrical pressure pot;

3, whether place interior pot signal or switch owing to being provided with, thereby make the utility model can prevent that the sky of heat-generating disc from burning phenomenon, security performance is better;

4, owing to be provided with the pressure signal or the pressure switch of formation, make the utility model in the temperature controlled while, also adopt pressure control, duplicate protection is safer; Owing to adopt the pressure adjustment screw, pressure can be regulated as required simultaneously.

5, adopt temperature controlled mode also can realize frying in shallow oil, fry function, enlarged the function of use and the scope of electric pressure cooking saucepan.

Description of drawings

Fig. 1 is for having adopted the utility model electric pressure cooking saucepan partial structurtes schematic diagram.

Description of reference numerals

Pot 3 heat-generating discs 4 Heat-insulation devices in 1 stay-warm case (thermal insulating disc) 2

5 metal heat transfer bodies, 6 temperature sensors, 7 insulators, 8 temperature sensor pins

Hard contact 10 temperature sensor pins on the 9 thermal insulation circles

Planar metal contact on 11 insulator lower plane hard contacts, 12 insulators

Hard contact 14 controller controling circuits on 13 Heat-insulation devices

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail:

As shown in Figure 1, the safety control of a kind of electric pressure cooking saucepan of the utility model, be arranged between heat-generating disc bottom and the stay-warm case (thermal insulating disc) 1, comprise the temperature sensor of being located in heat-generating disc 3 mesopores 6, two

signal pins

8,10 of temperature sensor 6 and the controller controling circuit 14 temperature control signals switch that is electrically connected to form, be provided with a heat-proof device 4 between the periphery of temperature sensor 6 and the heat-generating disc 3, heat-proof device 4 is a thermal insulation circle, and material can be bakelite; The top of temperature sensor 6 is metal heat transfer body 5, and its lower end is fixedly connected with insulator 7, and insulator 7 can be bakelite, and this insulator 7 constitutes cap-like structure with metal heat transfer body 5 and is buckled on the temperature sensor 6; Insulator 7 horizontal planes are provided with the hard contact 11 of projection up and down, 12, insulator horizontal plane hard contact up and down also can adopt the metallic rod that fuses, heat-proof device 4 corresponding sections of hard contact 12 tops on its top are provided with the hard contact 13 to lower convexity, two

hard contacts

12,13 with controller controling circuit 14 be electrically connected to form whether place in the pot signal or switch, corresponding position, its level basifacial hard contact 11 below also is provided with hard contact 9, described hard contact 9 bottom can adopt the adjustment screw that is fixed on the safety control bottom, thereby the sensed pressure of electric pressure cooking saucepan can be regulated.Two

hard contacts

9,11 and controller controling circuit 14 be electrically connected to form pressure signal or pressure switch, controller controling circuit can adopt cpu control circuit.Certainly the hard contact 11 of insulator 7 its lower planes also can adopt adjustment screw, thereby the sensed pressure of electric pressure cooking saucepan can be regulated.

In the use, if interior pot 2 is not inserted in it, then owing to acting force of the spring hard contact 13 and hard contact 12 join, thereby send the signal that does not have pot in the placement, electric pressure cooking saucepan stops to heat; When pressure acquires a certain degree, hard contact 11 is connected with hard contact 14, send reach fixed pressure signal, controller can be according to this signal controlling heated state, the two

pins

8,10 and the cpu control circuit of temperature sensor 6 join, and controller can be according to the temperature signal control heated state of its transmission.

Claims

1, a kind of safety control of electric pressure cooking saucepan, comprise the temperature sensor of being located in the heat-generating disc mesopore, it is characterized in that, be provided with a heat-proof device between the periphery of temperature sensor and the heat-generating disc, two signal pins of temperature sensor and the control circuit temperature control signals switch that is electrically connected to form, the top of temperature sensor is the metal heat transfer body, its lower end is fixedly connected with insulator, the insulator horizontal plane is provided with the hard contact of projection up and down, the heat-proof device corresponding section of the hard contact top on its top is provided with the hard contact to lower convexity, whether two hard contacts and control circuit are electrically connected to form places the signal or the switch of interior pot, corresponding position, the basifacial hard contact of its level below also is provided with hard contact, two hard contacts and control circuit be electrically connected to form pressure signal or pressure switch.

2, the safety control of a kind of electric pressure cooking saucepan according to claim 1 is characterized in that, described hard contact bottom can adopt the adjustment screw that is fixed on the safety control bottom.

3, the safety control of a kind of electric pressure cooking saucepan according to claim 1 and 2 is characterized in that, insulator horizontal plane hard contact up and down adopts the metallic rod of integral type.

4, the safety control of a kind of electric pressure cooking saucepan according to claim 1 and 2 is characterized in that, the hard contact of insulator lower plane adopts adjustment screw.

5, the safety control of a kind of electric pressure cooking saucepan according to claim 1 is characterized in that: described heat-proof device is a thermal insulation circle, and material adopts bakelite.

6, the safety control of a kind of electric pressure cooking saucepan according to claim 1 is characterized in that: seal and metal heat transfer body constitute cap-like structure and are buckled on the temperature sensor.