CN2188804Y

CN2188804Y - Temperature-controlling switch for electronic cooker

Info

Publication number: CN2188804Y
Application number: CN 94200370
Authority: CN
Inventors: 郭登隆
Original assignee: Liao Zhi
Current assignee: Liao Zhi
Priority date: 1994-01-06
Filing date: 1994-01-06
Publication date: 1995-02-01
Anticipated expiration: 2004-01-06

Abstract

The utility model relates to a temperature-controlling switch for electronic cookers, a shell is composed of an outer case and a soleplate, the shell is assembled with a bending arc magnetic conductive heat couple plate, a magnetic non-conductive gasket, a spring and a control base whose bottom surface is provided with a magnet, and the control base is connected with a control switch. When the electronic cooker is started, the control base can be pressed down, and the magnet can absorb on the magnetic conductive heat couple plate. When the temperature is higher than the preset temperature, the magnetic conductive heat couple plate can deform, the adsorption force of the magnet can not overcome the spring force, so the control base can be upwardly ejected, and therefore, the utility model can reach the purpose of controlling.

Description

Temperature-controlling switch for electronic cooker

The utility model relates to a kind of electronic pot temperature detect switch (TDS), and it mainly utilizes the magnetic conduction thermocouples plate to be heated to produce the characteristic of distortion, in order to matching with control seat that spring and bottom surface are provided with magnet, and can reach accurate control and the effect that increases useful life.

The development of electronic pot is existing historical for many years, because it can be controlled and adjust accurately, it uses widely, and degree has some idea of from the display commodity on each electrical equipment market shelf, constantly promote owing to domestic scientific and technological level again, make electronic pot be dependent on import fully by early stage, to today great majority make (comprising OEM) at home, existing even a large amount of export trade actual achievements, reach the degree for national obtaining of foreign money, this product truly has it expansionary.

But analyzed as can be known with regard to existing electronic pot structure, heart in its overall structure promptly is its temperature detect switch (TDS), because electronic circuit and timing switch etc. are the known technology of general industry, but the temperature detect switch (TDS) that is arranged on the inboard central authorities of electronic pot outer pot then is the critical structures that domestic manufacturers can't produce voluntarily, because this switch must have very accurate temperature control effect, can allow electronic pot can cooking go out and perfume in use, ripe again rice, if it can't control temperature accurately, then will inevitably cook the half cooked or meal that burns, so its accuracy is quite important; This temperature detect switch (TDS) must have splendid durability again, so adopting mechanical structure will be good than the temperature sensitive switch of electronic type, but the production technology at present this temperature detect switch (TDS) still is controlled in the Japanese manufacturer hand, and this causes in fact to produce and go up sizable restriction domestic manufacturers.

See it with existing electronic pot temperature detect switch (TDS), its structure promptly as shown in Figure 4, it is assembled with a control seat 92 in the shell that outer cover 90 and base plate 91 are constituted, on this control seat 92, erect a connecting piece 921 is arranged, and these control seat 92 1 sides be provided with one the location through hole 922, fixedly be assembled with a magnet 93 in the bottom surface of this control seat 92 again; Be set with two magnet 94 at base plate 91 upper surfaces, above this magnet 94, be mounted with simultaneously a stator 95, this stator 95 is provided with two openings 951, and be provided with cramp 952 in opening 951 sides, and can hold magnet 94 in order to button, and allow magnet 94 expose by opening 951 places, then be provided with location hole 953 at side in addition, this location hole 953 can match with the location hole 901 on the outer cover 90, and establish a positioning rod 97 at

outer cover

90 and 95 folders of stator, establish in addition and be assembled with a spring 96 at

control seat

92 and 95 folders of stator.

Cooperate the generalized section shown in Fig. 5 to see it, can find out the structural arrangements state of relevant existing this type of temperature detect switch (TDS) clearly, wherein outer cover 90 is combined into shell with base plate 91, magnet 94, stator 95, spring 96 and control seat 92 are assembled in wherein in regular turn, 97 of backstays are located in 953 of outer cover 90 location holes 901 and stator 95 location holes, and pass positional punch 922 on the control seat 92, be fixed with a magnet 93 in control seat 92 bottom surfaces, simultaneously above the brace above the control seat 92 921 passes outer cover 90, and can be connected to control switch, when the user starts electronic pot and cooks, promptly be brace 921 is pressed down and to allow the magnet 93 on control seat 92 bottom surfaces adsorb mutually with magnet 94 on being fixedly installed on base plate 91, be turn-on power this moment, when temperature during up to design temperature, it is the magnet 93 of absorption mutually, 94 magnetic promptly sharply weaken, pop up so make control seat 92 be subjected to the ejection of spring 96, can promote control switch by brace 921, and with dump, to reach the effect of temperature control, again after temperature reduces, this

magnet

93,94 recover its original magnetic again.

But aforesaid existing temperature detect switch (TDS) is when producing, maximum problem is that promptly this

magnet

93,94 can't be made voluntarily by compatriots, because domestic still can't production at present with accurate temperature controlled the magnet that magnetic disappears, so the production quantity of electronic pot is on top of in the hand of Japanese Trading Company, whenever one group of

magnet

93,94 is buied by domestic manufacturers, can produce an electronic pot, this electronic pot for China is produced the dealer, promptly as the lifeblood of having been grasped existence by the people.

Existing temperature detect switch (TDS) also bothers when assembling in addition, when assembling, it must earlier magnet 94 be attached on the base plate 91 with gluing, and then be placed on the base plate 91 with stator 95, and then with spring 96 assembling on it, must fix magnet 93 earlier again in the control seat bottom surface in addition, then backstay 97 is passed positional punch 922 back on the control seat 92 and fixedly be assembled in 901 of stator 95 location holes 953 and outer cover 90 location holes, the assembling purpose of this backstay 97 is to prevent that control seat from producing deflection in outer cover 90, cooperate situation with the polarity of 94 of magnet and have influence on magnet 93, its assembling formality is numerous and diverse, and directly has influence on whole processing packaging efficiency.

Main purpose of the present utility model is: a kind of electronic pot temperature detect switch (TDS) is provided, it mainly is the magnetic conduction thermocouples plate that is assembled with a curved arc shape in the housing that constitutes at outer cover and base plate, one non-magnetic packing ring, one spring and a bottom surface are provided with the control seat of magnet, this control seat end face is provided with a connecting piece, and can be in order to connect control switch, when electronic pot starts, control seat is pressed down and spring is compressed, and be adsorbed on the central tip-tilted magnetic conduction thermocouples plate by magnet, and when temperature surpasses design temperature, the magnetic conduction thermocouples plate promptly produces distortion and forms the recessed state of mediad, because its periphery is subjected to the packing ring compacting location of spring ejection, so can elongate the distance between magnetic conduction thermocouples plate and magnet, make the adsorption capacity of magnet be not enough to overcome the elastic force of spring, and control seat is popped up, to reach the effect of control.

The utility model provides a kind of electronic pot temperature detect switch (TDS), it is assembled with the control seat that a bottom surface is provided with magnet in the housing that outer cover and base plate constituted, on this control seat, be provided with a brace of erectting, this brace can be connected mutually with control switch, below control seat, be assembled with a spring, and the strength that can provide control seat to make progress ejection by spring, its characteristics are:

Spring below is provided with a non-magnetic packing ring, and is folded with a magnetic conduction thermocouples plate that is curved arc shape between this non-magnetic packing ring and base plate, and the central authorities of this thermocouples plate are upturned;

Aforesaid electronic pot temperature detect switch (TDS), its characteristics are: the magnetic conduction thermocouples plate is the discoid lamellar body that a section is curved arc shape;

Aforesaid electronic pot temperature detect switch (TDS), its characteristics are: plate upper surface is provided with the flange that a circle can provide the suitable deformation space of magnetic conduction thermocouples plate;

Aforesaid electronic pot temperature detect switch (TDS), its characteristics are: packing ring is provided with the flange that a circle can provide the suitable deformation space of magnetic conduction thermocouples plate.

Further specify architectural feature of the present utility model and purpose below in conjunction with accompanying drawing.

Fig. 1 is the element decomposing schematic representation of the utility model electronic pot temperature detect switch (TDS).

Combination cross-sectional view when Fig. 2 presses down for the utility model control seat.

Combination cross-sectional view when Fig. 3 upsprings for the utility model control seat.

Fig. 4 is the element decomposing schematic representation of existing temperature detect switch (TDS).

Fig. 5 is the combination cross-sectional view of existing temperature detect switch (TDS).

See also shown in Figure 1, it is the element decomposing schematic representation of the utility model electron temperature detect switch, wherein can see in the top of the present utility model is an outer cover 10, and this outer cover 10 constitutes shell of the present utility model with the base plate 11 of below, in shell, from top to bottom be assembled with control seat 12 in regular turn, magnet 13, spring 16, packing ring 15 and magnetic conduction thermocouples plate 14, it is one discoid that this control seat 12 is, and be provided with a brace 121 of erectting thereon, this brace 121 can be connected mutually with the control switch of electronic pot, and the conducting that can control power supply between control seat 12 moves up and down whether, magnet 13 is fixed on the bottom surface of control seat 12 again, spring 16 be located in control seat 12 and packing ring 15 between, 14 of magnetic conduction thermocouples plates are curved discoid of a section, and the part that is upturned of central authorities is folded in 11 of packing ring 15 and base plates, it is simple in structure and non-directional, so assembling is quite convenient.

Combination cross-sectional view when the utility model control seat 12 of cooperation Fig. 2 presses down is seen it, when the utility model starts, its control seat 12 is pressed down, and spring 16 is compressed, magnet 13 is adsorbed on the magnetic conduction thermocouples plate 14 again, and can maintain this position, when the temperature in the electronic pot edges up, magnetic conduction thermocouples plate 14 promptly can be out of shape in generation gradually, and when arriving design temperature, promptly can become the recessed form of mediad, this moment since the distance of 13 of magnetic conduction thermocouples plate 14 and magnet drawn back, so make the absorption affinity of 13 pairs of magnetic conduction thermocouples plates 14 of magnet weaken, and be not enough to overcome the elasticity of spring 16, so make control seat 12 be made progress ejection to the position shown in Fig. 3 by spring 16, this moment, brace 121 promptly can protrude upward the top of outer cover 10, and control switch is cut off the electricity supply.

Base plate 11 of the present utility model is provided with a magnetic conduction thermocouples plate 14, this magnetic conduction thermocouples plate 14 is to be erected on the flange 111 of base plate 11, on this magnetic conduction thermocouples plate 14, be provided with a packing ring 15 again, on this packing ring 15, also be provided with a ring flange 151, can allow magnetic conduction thermocouples plate 14 in base plate 11 flanges 111 and packing ring 15 flanges 151 formed spaces, be out of shape by this along with variation of temperature, the central authorities of this magnetic conduction thermocouples plate 14 can be upturned when temperature is low, and can allow the fixing magnet 13 in control seat 12 bottom surfaces adsorb when control seat 12 presses down; Again when temperature surpasses design temperature, the central authorities of this magnetic conduction thermocouples plate 14 promptly can be to recessed state, even this moment, the magnet 13 of control seat 12 bottom surfaces can't be adsorbed on this magnetic conduction thermocouples plate 14, and can be popped up, so can reach the effect of accurate temperature control by spring 16.

Basic framework of the present utility model and existing temperature detect switch (TDS) are identical, it also is to establish at

outer cover

10 and 11 folders of base plate to be assembled with control seat 12, spring 16 members such as grade, and also be to be connected control switch on control seat 12 with a connecting piece 121, what the utility model was identical with existing temperature detect switch (TDS) again is the effect that reaches control with control seat 12 moving up and down in outer cover 10, that is basic framework of the present utility model is identical, but with design of the present utility model, it does appropriate cooperate with the magnetic conduction thermocouples plate 14 of 15 on packing ring with the magnet 13 of control seat 12 bottom surfaces to be located in base plate 11, and can reach the control effect identical with existing temperature detect switch (TDS), the structure of this case is simultaneously more simplified, it need not to set up a positioning rod and prevent that control seat 12 from rotating in outer cover 10, when assembling, more need not to consider the polarity of magnet 13, and can allow overall package more light and make things convenient for, the most important thing is that in structural arrangements mode of the present utility model it can very easy technology reach required temperature control effect.

Claims

1, a kind of electronic pot temperature detect switch (TDS), it is assembled with the control seat that a bottom surface is provided with magnet in the housing that outer cover and base plate constituted, this control seat is provided with a brace of erectting, this brace can be connected mutually with control switch, the control seat below is assembled with a spring, and the strength that can provide control seat to make progress ejection by spring is characterized in that:

Spring below is provided with a non-magnetic packing ring, and is folded with a magnetic conduction thermocouples plate that is curved arc shape between this non-magnetic packing ring and base plate, and the central authorities of this thermocouples plate are upturned.

2, electronic pot temperature detect switch (TDS) according to claim 1 is characterized in that: the magnetic conduction thermocouples plate is the discoid lamellar body that a section is curved arc shape.

3, electronic pot temperature detect switch (TDS) according to claim 1 is characterized in that: plate upper surface is provided with the flange that a circle can provide the suitable deformation space of magnetic conduction thermocouples plate.

4, electronic pot temperature detect switch (TDS) according to claim 1 is characterized in that: packing ring is provided with the flange that a circle can provide the suitable deformation space of magnetic conduction thermocouples plate.