CN201767741U - Boiling circuit of mechanical rice cooker - Google Patents

Boiling circuit of mechanical rice cooker Download PDF

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Publication number
CN201767741U
CN201767741U CN2010202712205U CN201020271220U CN201767741U CN 201767741 U CN201767741 U CN 201767741U CN 2010202712205 U CN2010202712205 U CN 2010202712205U CN 201020271220 U CN201020271220 U CN 201020271220U CN 201767741 U CN201767741 U CN 201767741U
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CN
China
Prior art keywords
switch
temperature
tds
circuit
temperature detect
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2010202712205U
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Chinese (zh)
Inventor
林毅
龚圆杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
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Midea Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN2010202712205U priority Critical patent/CN201767741U/en
Application granted granted Critical
Publication of CN201767741U publication Critical patent/CN201767741U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a boiling circuit of a mechanical rice cooker, which comprises a heating tube W, a temperature limit switch K4 and a function select switch K3, and the function select switch K3 is connected in series with the heating tube W and the temperature limit switch K4 and then switched in a power supply. The boiling circuit is characterized in that the heating tube W adopts a single-tube; and a first temperature control switch K1, a second temperature control switch K2 and a divider resistor R3 are connected in parallel at two ends of the function select switch K3. The utility model adopts a heating plate with the single heating tube to realize the boiling function, thereby effectively reducing manufacturing cost and failure rate.

Description

A kind of circuit of cooking congee of mechanical type electric cooker
Technical field
The utility model relates to electric cooker, and particularly a kind of circuit of cooking congee of mechanical type electric cooker belongs to the renovation technique of electric cooker.
Background technology
The mechanical type electric cooker product of the existing band gruel boiling function in market, the general electric hot tray that has small one and large one two power electrothermal tube heating that adopts, it realizes that gruel boiling function is the temperature switch induction vapor (steam) temperature that is provided with by the electric cooker loam cake, when rice water seethes with excitement in pot body, the temperature switch control circuit cuts off the large power, electrically heat pipe, realize the boiling of little firepower, thereby guarantee do not have thin rice gruel to overflow in the process of cooking congee and reach the purpose of gruel boiling function.Its shortcoming has two aspects: first is two-tube electric hot tray cost height; Second then is because the electric hot tray assembly has two heat-generating pipes, and its probability that produces fault is the twice of single-shot heat pipe electric hot tray, market maintenance rate height.
The utility model content
The purpose of this utility model is to consider the problems referred to above and a kind of circuit of cooking congee that adopts the mechanical type electric cooker of single tube electric hot tray is provided, with effective reduction electric hot tray cost and fault rate.
The technical scheme that realizes the utility model purpose is: a kind of circuit of cooking congee of mechanical type electric cooker, comprise heat-generating pipe W, temperature limit switch K4 and functional select switch K3, power supply is inserted in functional select switch K3 and heat-generating pipe W, temperature limit switch K4 series connection back, it is characterized in that: heat-generating pipe W is a single tube, and functional select switch K3 two ends also are connected in parallel to the first temperature detect switch (TDS) K1, the second temperature detect switch (TDS) K2, divider resistance R3 respectively.
The above-mentioned first temperature detect switch (TDS) K1 is the closed type switch.
The disconnection abrupt temp point of the above-mentioned first temperature detect switch (TDS) K1 is set to 70-98 ℃, and abrupt temp point is set to 15-25 ℃ with the temperature difference of reset temperature point.
The above-mentioned first temperature detect switch (TDS) K1 be fixed on electric cooker on cover.
The above-mentioned second temperature detect switch (TDS) K2 is the closed type switch.
The disconnection abrupt temp point of the above-mentioned second temperature detect switch (TDS) K2 is set to 75-140 ℃, and abrupt temp point is set to 5-15 ℃ with the temperature difference of reset temperature point.
The above-mentioned second temperature detect switch (TDS) K2 is fixed on the electric cooker outer pot.
The series circuit of the two ends of above-mentioned functions selector switch K3 and heat-generating pipe W series circuit and relay indicating light L2 and divider resistance R2 is connected in parallel.
The series circuit of the two ends of above-mentioned temperature limit switch K4 and end-of-job indicator lamp L1 and divider resistance R1 is connected in parallel.
The utility model utilize the first temperature detect switch (TDS) K1 and the second temperature detect switch (TDS) K2 jointly to electric cooker the cook congee perception of temperature in the process control the switching of heat-generating pipe W, make and to keep little firepower fluidized state after the food boiling and do not overflow, thereby the function that realization utilizes the single tube electric hot tray to cook congee, both reduce the manufacturing cost of product, reduced fault rate and maintenance rate again.
Description of drawings
Fig. 1 is the structural representation of the electric cooker of employing the utility model embodiment;
Fig. 2 is the longitudinal profile schematic diagram of Fig. 1;
Fig. 3 is the circuit theory diagrams of the utility model embodiment.
The specific embodiment
Below in conjunction with drawings and Examples the specific embodiment of the present utility model is described further.
Show as Fig. 1 to Fig. 3, in the present embodiment, adopt mechanical type electric cooker of the present utility model to comprise loam cake 1, pot body 2, place the outer pot 3 in pot body, place the interior pot 4 in the outer pot 3, internal pot 4 heating plates that heat 5 and place heating plate 5 centers, the magnet steel 6 that has temperature limit switch K4, heating plate 5 inside only are provided with a heat-generating pipe W, loam cake 1 be provided with interior pot 3 in the insulation seat board 11 that directly contacts of the steam that produces, fixedly be equipped with first temperature controller 7 on the insulation seat board 11, first temperature controller 7 is close to insulation seat board 11, the temperature that is used for perception insulation seat board 11, the bimetal leaf first temperature detect switch (TDS) K1 that is provided with by inside realizes logical, disconnected action, the reset temperature point when abrupt temp point when having disconnection and connection.Fixedly be equipped with second temperature controller 8 on the outer pot 3, be used for the temperature of perception outer pot 3, the bimetal leaf second temperature detect switch (TDS) K2 that is provided with by inside realizes the switching action, the reset temperature point when abrupt temp point when having disconnection and connection.Pot body 2 lateral surfaces are provided with and make things convenient for the user to select to cook or selector button 9 that gruel boiling function is used, are used for controlling the action of functional select switch K3.
In the present embodiment, the concrete connection of circuit is as follows: connect with heat-generating pipe W, temperature limit switch K4 successively after functional select switch K3 and the first temperature detect switch (TDS) K1, the second temperature detect switch (TDS) K2, the divider resistance R3 parallel connection, insert power supply, in parallel after relay indicating light L2 connects with divider resistance R2 with functional select switch K3 and heat-generating pipe W two ends, in parallel after end-of-job indicator lamp L1 connects with divider resistance R1 with temperature limit switch K4 two ends.Wherein the functional select switch K3 and the first temperature detect switch (TDS) K1, the second temperature detect switch (TDS) K2 are the closed type switch, and the resistance value of divider resistance R3 is far longer than the resistance value of heat-generating pipe W.
Generally, the closed conducting of functional select switch K3, functional select switch K3, heating plate W, temperature limit switch K4 and power supply form the loop, and by the duty of temperature limit switch K4 control heat-generating pipe W, control circuit is in the rice-cooking function state.When temperature limit switch K4 connected, the work of cooking began, and relay indicating light L2 is bright; When temperature limit switch K4 disconnects, the end-of-job of cooking, L1 is bright for the end-of-job indicator lamp.
When the user disconnects functional select switch K3 by select button 9, circuit is in the gruel boiling function state, the first temperature detect switch (TDS) K1, the second temperature detect switch (TDS) K2, divider resistance R3, heat-generating pipe W, temperature limit switch K4 and power supply form the loop at this moment, control the duty of heat-generating pipe W jointly by temperature limit switch K4 and the first temperature detect switch (TDS) K1, the second temperature detect switch (TDS) K2, concrete operation principle is as follows:
Connect temperature limit switch K4, the work of cooking congee begins, and relay indicating light L2 is bright, heat-generating pipe W heating, because outer pot 3 directly contacts with heating plate 5, programming rate is very fast, and the second temperature detect switch (TDS) K2 does not wait the food boiling in pot body promptly to reach abrupt temp point and disconnects; This moment, the first temperature detect switch (TDS) K1 still was in closure state, heat-generating pipe W continues heating, when food is near fluidized state in pot body, when the temperature of first temperature detect switch (TDS) K1 perception insulation seat board 11 reaches abrupt temp point, the first temperature detect switch (TDS) K1 disconnects, heat-generating pipe W connects with divider resistance R3 in the circuit, because the resistance value of divider resistance R3 is far longer than the resistance value of heat-generating pipe, heat-generating pipe W does not heat; After heat-generating pipe stops heating, outer pot temperature begins to descend thereupon, when reaching the reset temperature point of the second temperature detect switch (TDS) K2, the second temperature detect switch (TDS) K2 is closed again to be connected, W connects with heat-generating pipe, and heat-generating pipe restarts heating, rises to the abrupt temp point again until the temperature of the second temperature detect switch (TDS) K2 perception outer pot, the second temperature detect switch (TDS) K2 disconnects again, makes heat-generating pipe W stop heating.So go round and begin again, the heating action by the second temperature detect switch (TDS) K2 controls heat-generating pipe makes the food in the interior pot maintain the state of a little firepower boiling, thereby realizes cooking congee.
In order to prevent under above-mentioned little firepower fluidized state, heat-generating pipe W heat time heating time is long to cause the problem of overflowing, consider when heating plate 5 is worked or quit work, the variations in temperature in the place in corresponding heating plate 5 hot junctions best embodies the variation of heat on the outer pot 3, especially the second temperature detect switch (TDS) K2 is fixed on the place in corresponding heating plate 5 hot junctions on the outer pot 3 in the present embodiment electric cooker.
In the present embodiment, the disconnection abrupt temp point of the first temperature detect switch (TDS) K1 is set to 70-98 ℃, and abrupt temp point is set to 15-25 ℃ with the temperature difference of reset temperature point; The disconnection abrupt temp point of the second temperature detect switch (TDS) K2 is set to 75-140 ℃, and abrupt temp point is set to 5-15 ℃ with the temperature difference of reset temperature point.
For behind the end-of-job of realizing cooking, cook congee to the insulation of food, the heating plate of the insulation usefulness that also can be connected in parallel at the two ends of end-of-job indicator lamp L1 and divider resistance R1 series circuit, the power of heating plate is much smaller than the power of heat-generating pipe W.Behind the end-of-job of cooking, cook congee, temperature limit switch K4 disconnects, heating plate is connected with heat-generating pipe W, because the resistance value of heating plate is far longer than the resistance value of heat-generating pipe W, the supply voltage of the heating plate two ends carrying overwhelming majority, relay indicating light L2 goes out, and circuit enters keeping warm mode, this moment, end-of-job indicator lamp L1 was the insulation indicator lamp, and was in bright state.

Claims (9)

1. the circuit of cooking congee of a mechanical type electric cooker, comprise heat-generating pipe W, temperature limit switch K4 and functional select switch K3, power supply is inserted in functional select switch K3 and heat-generating pipe W, temperature limit switch K4 series connection back, it is characterized in that: heat-generating pipe W is a single tube, and functional select switch K3 two ends also are connected in parallel to the first temperature detect switch (TDS) K1, the second temperature detect switch (TDS) K2, divider resistance R3 respectively.
2. the circuit of cooking congee of mechanical type electric cooker according to claim 1 is characterized in that: the first temperature detect switch (TDS) K1 is the closed type switch.
3. the circuit of cooking congee of mechanical type electric cooker according to claim 2 is characterized in that: the disconnection abrupt temp point of the first temperature detect switch (TDS) K1 is set to 70-98 ℃, and abrupt temp point is set to 15-25 ℃ with the temperature difference of reset temperature point.
4. according to the circuit of cooking congee of claim 1 or 2 or 3 described mechanical type electric cookers, it is characterized in that: the first temperature detect switch (TDS) K1 is fixed on the loam cake (1) of electric cooker.
5. the circuit of cooking congee of mechanical type electric cooker according to claim 1 is characterized in that: the second temperature detect switch (TDS) K2 is the closed type switch.
6. the circuit of cooking congee of mechanical type electric cooker according to claim 5 is characterized in that: the disconnection abrupt temp point of the second temperature detect switch (TDS) K2 is set to 75-140 ℃, and abrupt temp point is set to 5-15 ℃ with the temperature difference of reset temperature point.
7. according to the circuit of cooking congee of claim 1 or 5 or 6 described mechanical type electric cookers, it is characterized in that: the second temperature detect switch (TDS) K2 is fixed on the electric cooker outer pot (3).
8. the circuit of cooking congee of mechanical type electric cooker according to claim 1 is characterized in that: the two ends of functional select switch K3 and heat-generating pipe W series circuit and the series circuit of relay indicating light L2 and divider resistance R2 are connected in parallel.
9. according to the circuit of cooking congee of claim 1 or 8 described mechanical type electric cookers, it is characterized in that: the series circuit of the two ends of temperature limit switch K4 and end-of-job indicator lamp L1 and divider resistance R1 is connected in parallel.
CN2010202712205U 2010-07-23 2010-07-23 Boiling circuit of mechanical rice cooker Expired - Lifetime CN201767741U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202712205U CN201767741U (en) 2010-07-23 2010-07-23 Boiling circuit of mechanical rice cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202712205U CN201767741U (en) 2010-07-23 2010-07-23 Boiling circuit of mechanical rice cooker

Publications (1)

Publication Number Publication Date
CN201767741U true CN201767741U (en) 2011-03-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202712205U Expired - Lifetime CN201767741U (en) 2010-07-23 2010-07-23 Boiling circuit of mechanical rice cooker

Country Status (1)

Country Link
CN (1) CN201767741U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102652645A (en) * 2012-04-28 2012-09-05 张应刚 Double-temperature controlled switch circuit and electric heating kettle utilizing the double-temperature controlled switch circuit
CN108158383A (en) * 2017-11-06 2018-06-15 浙江苏泊尔家电制造有限公司 The control method of cooking apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102652645A (en) * 2012-04-28 2012-09-05 张应刚 Double-temperature controlled switch circuit and electric heating kettle utilizing the double-temperature controlled switch circuit
CN108158383A (en) * 2017-11-06 2018-06-15 浙江苏泊尔家电制造有限公司 The control method of cooking apparatus

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING

Free format text: FORMER OWNER: MEIDI GROUP CO. LTD.

Effective date: 20120426

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20120426

Address after: Beijiao Town, Shunde District of Guangdong city of Foshan province Sanle road 528311 No. 19

Patentee after: Midea Electrical Heating Appliances Manufacturing Co., Ltd., Shunde District, Foshan City

Address before: 528311 Penglai Road, Beijiao Town, Foshan District, Guangdong, China,

Patentee before: Meidi Group Co., Ltd.

CX01 Expiry of patent term

Granted publication date: 20110323

CX01 Expiry of patent term