CN2166738Y

CN2166738Y - Electrically heating water pot controlled by speech sounds

Info

Publication number: CN2166738Y
Application number: CN93231353U
Authority: CN
Inventors: 刘继文; 刘云生
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-10
Filing date: 1993-07-10
Publication date: 1994-06-01
Anticipated expiration: 2003-07-10

Abstract

The utility model relates to the switch of an electric heating water pot with automatic control and speech. The utility model is composed of an outer shell which is arranged on a pot cover, an automatic control switch mechanism which is arranged in the outer shell, and a speech and alarm mechanism which is arranged on the outer shell. The automatic control switch mechanism is composed of a temperature-sensing piece base with a steam inlet hole, a temperature-sensing piece fixing support frame, moving and static contacts, a push rod which is sheathed with a spring, and a baffle plate which is matched with the push rod. One end of the baffle plate is adjacent to the trigger switch of the speech and alarm mechanism. The utility model has the advantages of simple structure, convenient operation, energy saving, accurate temperature control and safety.

Description

Electrically heating water pot controlled by speech sounds

The utility model relates to a kind of automatic control voice electric kettle switch, and it is adapted to automatic control outage and audio alert behind the electric kettle boiling water.

It all is to adopt the direct insertion step mode of electrothermal tube that existing market is sold electric kettle, because when water boils, when unattended or negligence, can not in time cut off the electricity supply, not only can burn out electrothermal tube, after water dryouied, also can cause adverse consequences, serious accident takes place, so occurred a kind of electric heating on the market of arising at the historic moment again in kettle, sends whistle when water boils, but this kettle reliability of crying is relatively poor, after the water boiling, steam is full of whistle and overflows, and makes the kettle whistle also just lose due effect.In addition, people utilize a kind of electric kettle that has temperature detect switch (TDS) of Kick type temperature controller design, and this electric kettle exists outage control temperature and is difficult to guarantee the just shortcoming on boiled water temperature.Moreover the vapour pressure diaphragm switch that occurs in the market exists flashboard and the push rod position is unfixing, unstable and the big shortcoming of edge frictional force.

The purpose of the utility model patent, to overcome or break through above-mentioned weak point technically exactly, and provide a kind of memorial alloy or bimetal leaf automatic control voice boiling water insulating pot switch, this switch should be when electric heater is heated to boiling point to water temperature, the temperature action that switch is subjected to gas triggers memorial alloy (bimetal leaf) and reaches the purpose and the characteristics of outage, and triggers audio alert simultaneously.

The utility model is to adopt following measure to realize its purpose.

By the shell that is installed on the pot lid, autocontrol switch mechanism in the shell, and the utility model of connecting and composing of the audio alert mechanism on the shell, its autocontrol switch mechanism is by the thermal sensitive piece base that has admission opening, thermal sensitive piece, fixed support, sound contact, be with the push rod of spring and the baffle plate that matches with push rod, an end of baffle plate and the trigger switch of audio alert mechanism are adjacent.Be equipped with a non-return boss on push rod, movable contact is placed on the push rod, and two stationary contacts are placed on the fixed support.The sound contact is placed on the fixed support, and push rod contacts with movable contact, with the fixedly connected baffle plate of thermal sensitive piece have with movable contact mutually the hook joint non-return collude tooth.Thermal sensitive piece can be butterfly shaped dual metal sheet or dish-shaped memorial alloy sheet, and the other end that is placed in thermal sensitive piece in the chamber that is coupled to by thermal sensitive piece base and fixed support and baffle plate is adjacent.Thermal sensitive piece can also be strip bimetal leaf or strip memorial alloy sheet, with have on the baffle plate that the strip thermal sensitive piece is fixedly connected with movable contact mutually the hook joint non-return collude tooth, movable contact is placed on the fixed support.Audio alert mechanism is formed by connecting by trigger switch and warning circuit, and warning circuit is to be made of voice integrated chip KD9561 or HFC9561A or FT-27.Audio alert mechanism can be placed in the shell or is placed in the handgrip on the shell.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a user mode structure chart of the present utility model, and wherein the baffle plate in the autocontrol switch is vertical, and thermal sensitive piece is a dish;

Fig. 2 is second kind of structure chart of the present utility model, and wherein the baffle plate in the autocontrol switch is laterally, and thermal sensitive piece is a dish;

Fig. 3 is the third structure chart of the present utility model;

Fig. 4 is the 4th a kind of structure chart of the present utility model, and its thermal sensitive piece is a strip;

Fig. 5 is the front view of autocontrol switch mechanism;

Fig. 6 is the vertical view of autocontrol switch mechanism;

Fig. 7, Fig. 8 are respectively lid the front view and the vertical view of seat;

Fig. 9, Figure 10 are respectively lid the front view and the vertical view of lid.

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

The utility model is mounted on the cap (3) of housing (2), go up an arrangement shell (4) at cap (3), pot lid (3) is gone up a fixedly connected electrothermal tube with power line (6) (1), an autocontrol switch mechanism (14) is installed in by shell (4) and the formed space of pot lid (3), go up except having carrying handle (5) at housing (2), on its shell (4), also settle a lid that audio alert mechanism (10) is housed (12).Autocontrol switch mechanism (14) is by the thermal sensitive piece base (19) that has admission opening (21), thermal sensitive piece (20), fixed support (7), movable contact (9), stationary contact (8), the baffle plate (11) that is with the push rod (16) of spring (15) and matches with push rod (16) is formed by connecting, admission opening (21) on the thermal sensitive piece base (19) passes pot lid (3) and communicates with kettle body (2), thermal sensitive piece base (19) constitutes a chamber (27) with fixed support (7) coupling, lay a dish-shaped thermal sensitive piece (20) in the chamber (27), dish thermal sensitive piece (20) is a bimetal disk, one end of the central authorities of thermal sensitive piece (20) and baffle plate (11) is adjacent, and the trigger switch (23) in the other end of baffle plate (11) and the audio alert mechanism (10) is adjacent.Promptly when dish-shaped thermal sensitive piece (20) under low-temperature condition when recessed, baffle plate (11) load is put on push rod (16), its two ends are neither to be touched mutually with thermal sensitive piece (20) and trigger switch (23); And when dish-shaped thermal sensitive piece (20) is convex under high temperature boiling water state, one end of baffle plate (11) touches mutually with thermal sensitive piece (20) and moves upward, the other end of baffle plate (11) has then touched the trigger switch (23) in the audio alert mechanism (10), on push rod (16), have a non-return boss (22), make the stationary contact (8) that is placed on the fixed support (7) and be placed in movable contact (9) on the push rod (16) when touching when promoting push rod (16), baffle plate (11) falls to the low table of non-return boss (22), stop push rod (16) under the effect of spring (15) return and make sound contact (8) (9) disconnection.For anti-baffle plate (11) moves in the horizontal direction, baffle plate (11) is interspersed in the baffle plate holder (13) that is fixed on the fixed support (7), push rod (16) can directly be visited and stretch out outside the shell (4), can also be designed to two-stage structure, promptly promote push rod (16) and come open-close on-off by the outer push rod (18) that is with outer spring (17).Baffle plate in Fig. 3 (11) is fixedly connected on dish-shaped thermal sensitive piece (20), sound contact (9) (8) all is placed on the fixed support (7), push rod (16) promotes movable contact (9), have on the baffle plate (11) one with movable contact (9) mutually the hook joint non-return collude tooth (24), collude tooth (24) below have one to promote movable contact (9) and stationary contact (8).The inclined-plane that is separated.Thermal sensitive piece can also be selected strip bimetal leaf or memorial alloy sheet (25) for use, with have on the fixedly connected baffle plate (26) of strip thermal sensitive piece (25) one with movable contact (9) mutually the hook joint non-return collude tooth, or have one with movable contact (9) on stop the match through hole of non-return of lug.Audio alert mechanism (10) is formed by connecting by trigger switch (23) and warning circuit, and warning circuit is to be made of voice integrated chip KD9561 or HFC9561 or FT-27.And audio alert mechanism (10) can be placed in the shell (4), also can be placed in the lid handle (12) on the shell (4), lid is (12) lid seat and lid to be made of lid, and lid is having warning circuit chamber (28), battery chamber (29) and trigger switch hole (30) in the seat.During use, the water vapour in the housing (2) can enter by admission opening (21) and make thermal sensitive piece (20) distortion in the chamber (27), and when heater circuit broke, voice alarm circuit was but opened.

The utility model is simple in structure, convenient economize on electricity, and temperature control is accurate, and safety and reliability are strong, and the dewatering outage of boiling stops also can triggering audio alert outside the heating.

Claims

1, automatic control voice electric kettle switch, it is by the shell that is installed on the pot lid, autocontrol switch mechanism in the shell, and the audio alert mechanism on the shell connects and composes, and it is characterized in that autocontrol switch mechanism is by the thermal sensitive piece base that has admission opening, thermal sensitive piece, fixed support, the sound contact is with the push rod of spring, and the baffle plate that matches with push rod is formed by connecting, and an end of baffle plate and the trigger switch of audio alert mechanism are adjacent.

2, automatic control voice electric kettle switch according to claim 1 is characterized in that thermal sensitive piece is butterfly shaped dual metal sheet or memorial alloy sheet, and the other end that is placed in thermal sensitive piece in the chamber that is coupled to by thermal sensitive piece base and fixed support and baffle plate is adjacent.

3, automatic control voice electric kettle switch according to claim 2 is characterized in that being equipped with on the push rod non-return boss, and movable contact is placed on the push rod, and two stationary contacts are placed on the fixed support.

4, automatic control voice electric kettle switch according to claim 2 is characterized in that the sound contact is placed on the fixed support, and push rod contacts with movable contact, with the fixedly connected baffle plate of thermal sensitive piece have with movable contact mutually the hook joint non-return collude tooth.

5, automatic control voice electric kettle switch according to claim 1, it is characterized in that thermal sensitive piece is strip bimetal leaf or memorial alloy sheet, with have on the baffle plate that thermal sensitive piece is fixedly connected with movable contact mutually the hook joint non-return collude tooth, movable contact is placed on the fixed support.

6, according to claim 1 or 2 or 3 or 4 or 5 described automatic control voice electric kettle switches, it is characterized in that audio alert mechanism is formed by connecting by trigger switch and warning circuit, warning circuit is to be made of voice integrated chip KD9561 or HFC9561A or FT-27.

7, automatic control voice electric kettle switch according to claim 6, it is characterized in that described audio alert mechanism can be placed in the shell or be placed on the shell lid in.