CN202303559U - Range hood with automatic cleaning function - Google Patents

Range hood with automatic cleaning function Download PDF

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Publication number
CN202303559U
CN202303559U CN2011203762600U CN201120376260U CN202303559U CN 202303559 U CN202303559 U CN 202303559U CN 2011203762600 U CN2011203762600 U CN 2011203762600U CN 201120376260 U CN201120376260 U CN 201120376260U CN 202303559 U CN202303559 U CN 202303559U
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CN
China
Prior art keywords
resistance
greasy dirt
module
heating
control module
Prior art date
Application number
CN2011203762600U
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Chinese (zh)
Inventor
杨志明
邱志远
牟军伟
郭强
Original Assignee
比亚迪股份有限公司
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Priority to CN2011203762600U priority Critical patent/CN202303559U/en
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Publication of CN202303559U publication Critical patent/CN202303559U/en

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Abstract

The utility model provides a range hood with an automatic cleaning function, comprising an impeller, a volute, a heating device, a greasy dirt induction module, a temperature acquisition module and a control module, wherein the volute covers the impeller; the heating device is used for heating the interior of the volute; the greasy dirt induction module is used for detecting greasy dirt; the temperature acquisition module is used for collecting the internal temperature of the volute; the control module is used for controlling the start-stop state, the heating time or the heating power of the heating device according to the signals from the greasy dirt induction module and the temperature acquisition module; an oil leakage hole is formed under the volute; the greasy dirt induction module is arranged under the oil leakage hole; and the greasy dirt induction module and the temperature acquisition module are respectively connected to the input ends of the control module. The greasy dirt induction module can detect the greasy dirt flowing from the oil leakage hole and transmit the signal to the control module, the temperature acquisition module can collect the internal temperature of the volute and transmit the signal to the control module, so that the situation that the greasy dirt cannot be cleaned as the heating temperature does not reach the melting point of the greasy dirt is prevented; and the situation that energy source is wasted due to overhigh internal temperature of the volute is also prevented.

Description

A kind of range hood with automatic cleaning function
Technical field
The utility model belongs to the kitchen appliance field, relates in particular to a kind of range hood with automatic cleaning function.
Background technology
Range hood is a kind of kitchen appliance that purifies kitchen environment, and it is installed in kitchen range top, can the harmful oil smoke that produce in the refuse of cooking stove burning and the cooking process be taken away rapidly, discharges outdoorly, and the minimizing pollution purifies air.In the use of range hood, greasy dirt is the most easily on the spiral case inwall and impeller attached to lampblack absorber, and these places are places of the most difficult cleaning at ordinary times.If will not effectively clean for a long time, greasy dirt can be cumulative, and greasy dirt can be because of oxidation and the air-dry cleaning that is difficult to.The accumulation of too much greasy dirt on impeller can increase the weight of impeller and increase the weight of the load of motor, influences the oil smoke absorbing effect, reduces the service life of motor.The spiral case inwall will produce coarse wall because of the adhesion of greasy dirt, influence spiral case smoke discharging effect smoothly, and can make that noise obviously increases.
For this reason, this person skilled has proposed the inner automated cleaning solution of many range hoods, for example in spiral case, installs the electrical heating heater additional; Spiral case and impeller are heated; Make the greasy dirt fusing thinning, the greasy dirt after the fusing is rejected in the catchment cup, thereby reaches the purpose of automated cleaning.But these schemes are still waiting to improve at cleaning effect, energy-conservation and secure context, and as in actual cleaning course, heating-up temperature does not reach the fusing point of greasy dirt, greasy dirt do not obtain cleaning or cleaning effect undesirable; Perhaps, greasy dirt melts, but the heating heater makes temperature too high also proceeding heating, causes energy waste, also can bring potential safety hazard simultaneously.
Summary of the invention
The utility model provides a kind of good cleaning effect that can reach, again the range hood with automatic cleaning function of energy-saving safety for the automated cleaning weak effect that solves range hood, the technical problem that wastes energy.
For achieving the above object; The utility model provides a kind of range hood with automatic cleaning function; Comprise impeller, be located at said impeller outer spiral case, be used for heater, the greasy dirt induction module that is used to detect greasy dirt that said spiral case inside is heated, the temperature collect module that is used to gather the temperature in the spiral case and according to the start and stop of the said heater of signal controlling of said greasy dirt induction module and temperature collect module or the control module of heat time heating time or heating power; The below of said spiral case is provided with oil leaking hole; Said greasy dirt induction module is positioned at said oil leaking hole below, and said greasy dirt induction module and temperature collect module are connected respectively to the input of said control module.
Preferably, said greasy dirt induction module comprises infrared generator and receiving system, and said infrared generator and receiving system lay respectively at the both sides of said oil leaking hole.
Preferably, said infrared generator is first light emitting diode, and said receiving system is first photistor.
Preferably, said greasy dirt induction module also comprises first resistance and the 7th resistance, and the anode of said first light emitting diode is connected with an end of first resistance, the minus earth of first light emitting diode, the other end Access Control module of first resistance; One end of the emitter stage of said first photistor and the 7th resistance also connects the input that said control module is inserted in the back, the grounded collector of first photistor, another termination power of the 7th resistance.
Preferably, said heater comprises heating tube or heater strip.
Preferably, said heater also comprises five resistance, the 6th resistance, the 9th resistance, the 11 resistance, second unidirectional thyristor, the 3rd unidirectional thyristor, the 4th triode, integrated electro sensor, first heating tube, reaches second heating tube; The integrated electro sensor comprises second light emitting diode and second photistor, and the anode of second light emitting diode is through the output of the 9th resistance Access Control module, the minus earth of second light emitting diode; The colelctor electrode of second photistor connects power supply through the 5th resistance, and the emitter stage of second photistor is connected to the base stage of the 4th triode; The colelctor electrode of the 4th triode connects power supply through the 6th resistance; Behind second unidirectional thyristor and the 3rd unidirectional thyristor reverse parallel connection; Two ends are connected with second heating tube with first heating tube respectively, and the control utmost point of the control utmost point of second unidirectional thyristor and the 3rd unidirectional thyristor is connected the back is connected to the 4th triode through the 11 resistance emitter stage.
Preferably, comprise also being used to select the heating mode of heat treated mode to select module that said heating mode selects module to be connected with the input of said control module.
Preferably; Said temperature collect module comprises thermistor and the 16 resistance; One end of said thermistor and an end of the 16 resistance also connect the input that said control module is inserted in the back, and the other end of thermistor inserts power supply, the other end ground connection of the 16 resistance.
Preferably, said control module comprises single-chip microcomputer, reset circuit, clock circuit, power circuit and indicating circuit, said reset circuit, clock circuit, and indicating circuit be connected with said single-chip microcomputer respectively, said power circuit is supplied power to single-chip microcomputer.
The beneficial effect of the utility model is: the greasy dirt induction module is set can detects the greasy dirt that flows out from oil leaking hole and be sent to control module; Temperature collect module can be gathered the temperature in the spiral case and be sent to control module; Can prevent that so just heating-up temperature from not reaching the greasy dirt fusing point, the situation that greasy dirt can not get cleaning; And the temperature in the spiral case is too high, causes the situation of energy waste.
Description of drawings
Fig. 1 is the range hood spiral case sketch map with automatic cleaning function that the utility model provides.
Fig. 2 is the enlarged drawing of P among Fig. 1.
Fig. 3 is the theory diagram of the range hood with automatic cleaning function that provides of the utility model.
Fig. 4 is the circuit diagram of the greasy dirt induction module that provides of the utility model.
Fig. 5 is the circuit diagram of the heater that provides of the utility model.
Fig. 6 is the circuit diagram of the temperature collect module that provides of the utility model.
Fig. 7 is the circuit diagram that the heating mode that provides of the utility model is selected module.
Fig. 8 is the circuit diagram of the control module that provides of the utility model.
The specific embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Consult Fig. 1 and Fig. 3; The utility model provides a kind of range hood with automatic cleaning function; Comprise impeller (not shown), be located at said impeller outer spiral case 2, be used for heater 3, the greasy dirt induction module 4 that is used to detect greasy dirt that said spiral case 2 inside are heated, the temperature collect module 5 that is used to gather the temperature in the spiral case and according to the start and stop of the said heater of signal controlling of said greasy dirt induction module and temperature collect module or the control module 6 of heat time heating time or heating power; The below of said spiral case 2 is provided with oil leaking hole 21; Said greasy dirt induction module 4 is positioned at said oil leaking hole 21 belows; Said greasy dirt induction module 4 and temperature collect module 5 are connected respectively to the input of said control module 6; And detected greasy dirt signal and temperature signal imported said control module 6, start and stop or heat time heating time or heating power that control module 6 is controlled said heater according to the greasy dirt signal and the temperature signal of input.
The range hood of the utility model also comprises other basic parts of range hood; As, the motor that drives impeller is rotated covers on motor, the outer housing of spiral case; Exhaust fume collecting hood etc.; Because these parts belong to existing mature technology, and uncorrelated with the inventive point of the utility model, so locate to repeat no more its concrete structure and composition.
Consult Fig. 1 and Fig. 2, present embodiment is provided with catchment cup 22 below oil leaking hole 21, and the greasy dirt that from oil leaking hole 21, flows out can be pooled to convenient collection the in the catchment cup 22.
Consult Fig. 8; The control module 6 of present embodiment comprises single-chip microcomputer U1; Wherein control module also comprises reset circuit 61, clock circuit 62, power circuit 63 and indicating circuit 64;, said reset circuit 61, clock circuit 62, and indicating circuit 64 is connected with said single-chip microcomputer U1 respectively, said power circuit 63 supplies power for single-chip microcomputer U1.The each part mentioned above circuit belongs to existing mature technology, and uncorrelated with the inventive point of the utility model, so provide circuit diagram in the drawings, its syndeton that repeats no more and circuit working principle here.
As the utility model one preferred embodiment; Said greasy dirt induction module comprises infrared generator 41 and receiving system 42; Said infrared generator 41 and receiving system 42 lay respectively at the both sides of said oil leaking hole 21; Infrared generator 41 sends infrared ray (dotted line shown in Figure 2) to receiving system 42, and infrared ray can detect the oil droplet that drips from oil leaking hole 21.Consult Fig. 4, the greasy dirt induction module also comprises first resistance R 1 and the 7th resistance R 7, and said infrared generator is the first light emitting diode DS1, and said receiving system is the first photistor Q1.The anode of the first light emitting diode DS1 is connected with an end of first resistance R 1, the minus earth of the first light emitting diode DS1, and the other end of first resistance R 1 inserts 1 pin of single-chip microcomputer U1.One end of the emitter stage of the first photistor Q1 and the 7th resistance R 7 also connects 2 pin that single-chip microcomputer U1 is inserted in the back, the grounded collector of the first photistor Q1, another termination power of the 7th resistance R 7.Infrared transmission to the first photistor Q1 that the first light emitting diode DS1 sends; When oil droplet drips; Oil droplet covers the light between the first light emitting diode DS1 and the first photistor Q1; Thereby the first photistor Q1 produces the variation from the high level to the low level signal, and the greasy dirt induction module detects fusion greasy dirt signal thus, and 2 pin of this signal through single-chip microcomputer U1 are inputed to control module.
Said heater is the heater 3 of prior art; For example can comprise heating tube or heater strip; Certainly; Other practical implementation means of utilizing other adaptable heater meanses to obtain according to the design of the utility model by those skilled in the art are also within the protection domain of the utility model.Heating tube or heater strip are fixed in the spiral case, and spiral case inwall and impeller are heated, and make the greasy dirt fusing that is attached on spiral case inwall and the impeller.Like Fig. 5; Heater comprises the 5th resistance R 5, the 6th resistance R 6, the 9th resistance R the 9, the 11 resistance R 11, the second unidirectional thyristor Q2, the 3rd unidirectional thyristor Q3, the 4th triode Q4, integrated electro sensor U2, and the first heating tube P1 and the second heating tube P2; Integrated electro sensor U2 comprises second light emitting diode and second photistor; The anode of second light emitting diode is through 21 pin of the 9th resistance R 9 access single-chip microcomputers, the minus earth of second light emitting diode.The colelctor electrode of second photistor connects power supply through the 5th resistance R 5, and the emitter stage of second photistor is connected to the base stage of the 4th triode Q4.The colelctor electrode of the 4th triode Q4 connects power supply through the 6th resistance R 6.Behind the second unidirectional thyristor Q2 and the 3rd unidirectional thyristor Q3 reverse parallel connection; Two ends are connected with the second heating tube P2 with the first heating tube P1 respectively, and the control utmost point of the control utmost point of the second unidirectional thyristor Q2 and the 3rd unidirectional thyristor Q3 is connected the back is connected to the 4th triode Q4 through the 11 resistance R 11 emitter stage.Control module is according to start and stop or the heat time heating time or the heating power of the commands for controlling heater of setting.
As a preferred embodiment; Temperature collect module comprises thermistor R15 and the 16 resistance R 16; Said thermistor R15 and the 16 resistance R 16 also connect 39 pin that single-chip microcomputer is inserted in the back, and the other end of thermistor R15 inserts power supply, the other end ground connection of the 16 resistance R 16.When the variations in temperature in the spiral case, can cause the variation of thermistor R15 resistance, cause the voltage on the 16 resistance R 16 to change, the level signal that changes reaches control module with level signal, thereby reaches the purpose of detecting temperature.
The utility model can detect greasy dirt and begin fusing owing to added the greasy dirt induction module, avoids appearance temperature not reach the greasy dirt fusing point, the also unfused situation of greasy dirt.In addition, temperature collect module can be monitored collection to the temperature in the spiral case at any time, guarantees temperature in the runny scope of greasy dirt, and can not surpass the rotten temperature of greasy dirt, and energy savings guarantees safety.
The concrete oil removing process of the utility model one embodiment is: start heater, the temperature in the spiral case raises gradually, when greasy dirt begins to melt and during from the oil leaking hole drippage of spiral case below; The greasy dirt induction module detects the greasy dirt signal, and at this moment, the temperature that temperature collect module is gathered in the spiral case is initial melting temperature T1; In order to guarantee that greasy dirt melts fully; Temperature in the spiral case need reach fine melt temperature T 2, and greasy dirt just can fully melt and flow out, thereby realizes automatic cleaning function.Therefore, the greasy dirt induction module also will be controlled heater again and continue heating a period of time after detecting greasy dirt and beginning fusing.But the temperature of heating can not be too high, and greasy dirt is rotten to produce oil smoke because too high temperature not only can make, and can waste energy, and causes unnecessary loss.When temperature collect module collects the higher limit T3 of the temperature that the temperature of spiral case surpass to set, control module control heater stop heating or keep constant temperature.
In one embodiment; In order to guarantee that greasy dirt melts fully, can make heater begin to detect fusion greasy dirt signal, after promptly temperature reaches initial melting temperature T1 at the greasy dirt induction module; Control module control heater continues heating one end time M; Keep constant temperature then, in time N, do not detect fusion greasy dirt signal up to the greasy dirt induction module, promptly the first photistor Q1 does not produce the level signal variation in time N; Just can think that the fusion greasy dirt all flows out, greasy dirt is fully removed totally.The time N of being appreciated that can set according to actual conditions, and present embodiment N is 30S.
Wherein, Time M beginning to detect the heating of greasy dirt signal continued can set up on their own according to differences such as environment temperature, seasons; With reference to figure 3; Present embodiment preferably be provided be used to select the heat treated mode heating mode select module 7, said heating mode selects module 7 to be connected with the input of said control module 6.Consult Fig. 7; Heating mode selects module to comprise the second button S2, the 3rd button S3, the 4th button S4, the 12 resistance R the 12, the 13 resistance R the 13, the 14 resistance R 14; The end of the second button S2 and an end of the 12 resistance R 12 also connect 6 pin that single-chip microcomputer is inserted in the back; The end of the 3rd button S3 and an end of the 13 resistance R 13 also connect 5 pin that single-chip microcomputer is inserted in the back, and the end of the 4th button S4 and an end of the 14 resistance R 14 also connect 4 pin that single-chip microcomputer is inserted in the back; The 12 resistance R the 12, the 13 resistance R 13, and the other end of the 14 resistance R 14 and connect after connect power supply, the second button S2, the 3rd button S3, and the other end of the 4th button S4 and connect back ground connection.Wherein the second button S2, the 3rd button S3, the 4th button S4 respectively corresponding spring and autumn heating mode, summer heating mode, winter heating mode; Every kind of M heat time heating time that heating mode is corresponding different respectively; For example under the situation of heating mode in summer; Environment temperature is higher, so heat time heating time, M was shorter, was preferably 30-60S; Under the situation of heating mode, environment temperature is lower in the winter time, so heat time heating time, M was longer, was preferably 90-150S; Under the situation of spring and autumn heating mode, environment temperature is suitable, so heat time heating time, M was preferably 60-90S.Should be appreciated that the value of M heat time heating time, can not surpass higher limit T3 as long as guarantee the temperature in heat time heating time M inner spiral casing for setting according to actual conditions.
Certainly, the start and stop of control module control heater or heat time heating time or heating power also can carry out according to the temperature in the spiral case is controlled in certain scope.Consider the actual demand that equipment uses, the temperature in the spiral case should have its suitable scope that is provided with.More satisfactory ground can reach greasy dirt is remained on warm easy flow regime and can not be heated the rotten state that produce oil smoke because of greasy dirt.Temperature collecting device is through gathering the temperature signal in the spiral case, and reaches control module, thereby by start and stop or heat time heating time or the heating power that control module is controlled heater temperature is controlled in this scope.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims (9)

1. range hood with automatic cleaning function; It is characterized in that: comprise impeller, be located at said impeller outer spiral case (2), the heater (3), the greasy dirt induction module (4) that is used to detect greasy dirt that are used for said spiral case inside is heated, be used to gather the temperature collect module (5) of the temperature in the spiral case and according to the start and stop of the said heater of signal controlling of said greasy dirt induction module and temperature collect module or the control module (6) of heat time heating time or heating power; The below of said spiral case is provided with oil leaking hole (21); Said greasy dirt induction module (4) is positioned at said oil leaking hole (21) below, and said greasy dirt induction module and temperature collect module are connected respectively to the input of said control module.
2. the range hood with automatic cleaning function as claimed in claim 1; It is characterized in that: said greasy dirt induction module (4) comprises infrared generator (41) and receiving system (42), and said infrared generator and receiving system lay respectively at the both sides of said oil leaking hole (21).
3. the range hood with automatic cleaning function as claimed in claim 2 is characterized in that: said infrared generator is first light emitting diode (DS1), and said receiving system is first photistor (Q1).
4. the range hood with automatic cleaning function as claimed in claim 3; It is characterized in that: said greasy dirt induction module also comprises first resistance (R1) and the 7th resistance (R7); The anode of said first light emitting diode (DS1) is connected with an end of first resistance (R1); The minus earth of first light emitting diode (DS1), the other end Access Control module of first resistance (R1); One end of the emitter stage of said first photistor (Q1) and the 7th resistance (R7) also connects the input that said control module is inserted in the back, the grounded collector of first photistor (Q1), another termination power of the 7th resistance (R7).
5. the range hood with automatic cleaning function as claimed in claim 1 is characterized in that: said heater (3) comprises heating tube or heater strip.
6. the range hood with automatic cleaning function as claimed in claim 5 is characterized in that: said heater also comprises five resistance (R5), the 6th resistance (R6), the 9th resistance (R9), the 11 resistance (R11), second unidirectional thyristor (Q2), the 3rd unidirectional thyristor (Q3), the 4th triode (Q4), integrated electro sensor (U2), first heating tube (P1), reaches second heating tube (P2); Integrated electro sensor (U2) comprises second light emitting diode and second photistor, and the anode of second light emitting diode is through the output of the 9th resistance (R9) Access Control module, the minus earth of second light emitting diode; The colelctor electrode of second photistor connects power supply through the 5th resistance (R5), and the emitter stage of second photistor is connected to the base stage of the 4th triode (Q4); The colelctor electrode of the 4th triode (Q4) connects power supply through the 6th resistance (R6); Behind second unidirectional thyristor (Q2) and the 3rd unidirectional thyristor (Q3) reverse parallel connection; Two ends are connected with second heating tube (P2) with first heating tube (P1) respectively, and the control utmost point of the control utmost point of second unidirectional thyristor (Q2) and the 3rd unidirectional thyristor (Q3) is connected the back is connected to the 4th triode (Q4) through the 11 resistance (R11) emitter stage.
7. the range hood with automatic cleaning function as claimed in claim 1; It is characterized in that: also comprise being used to select the heating mode of heat treated mode to select module (7), said heating mode selects module to be connected with the input of said control module (6).
8. the range hood with automatic cleaning function as claimed in claim 1; It is characterized in that: said temperature collect module comprises thermistor (R15) and the 16 resistance (R16); One end of said thermistor (R15) and an end of the 16 resistance (R16) also connect the input that said control module is inserted in the back; The other end of thermistor (R15) inserts power supply, the other end ground connection of the 16 resistance (R16).
9. the range hood with automatic cleaning function as claimed in claim 1; It is characterized in that: said control module comprises single-chip microcomputer (U1), reset circuit (61), clock circuit (62), power circuit (63) and indicating circuit (64); Said reset circuit, clock circuit, and indicating circuit be connected with said single-chip microcomputer respectively, said power circuit is supplied power to single-chip microcomputer.
CN2011203762600U 2011-09-29 2011-09-29 Range hood with automatic cleaning function CN202303559U (en)

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CN2011203762600U CN202303559U (en) 2011-09-29 2011-09-29 Range hood with automatic cleaning function

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CN2011203762600U CN202303559U (en) 2011-09-29 2011-09-29 Range hood with automatic cleaning function

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103454223A (en) * 2013-09-02 2013-12-18 四川长虹电器股份有限公司 System and method for detecting oil stain sediment of lampblack equipment
CN104110712A (en) * 2013-04-22 2014-10-22 博西华电器(江苏)有限公司 Range hood and range hood control method
WO2015027586A1 (en) * 2013-08-26 2015-03-05 广东美的厨房电器制造有限公司 Range hood, cleaning device for range hood, and control method therefor
CN104849286A (en) * 2015-06-09 2015-08-19 广东美的厨房电器制造有限公司 Pollution degree treatment device and household appliance
CN108139082A (en) * 2016-08-26 2018-06-08 深圳市赛亿科技开发有限公司 Smoke exhaust ventilator automatic flushing device and method
CN111023216A (en) * 2020-01-02 2020-04-17 珠海格力电器股份有限公司 Smoke machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104110712B (en) * 2013-04-22 2017-12-08 博西华电器(江苏)有限公司 The control method of smoke exhaust ventilator and smoke exhaust ventilator
CN104110712A (en) * 2013-04-22 2014-10-22 博西华电器(江苏)有限公司 Range hood and range hood control method
WO2015027586A1 (en) * 2013-08-26 2015-03-05 广东美的厨房电器制造有限公司 Range hood, cleaning device for range hood, and control method therefor
CN104415929A (en) * 2013-08-26 2015-03-18 广东美的厨房电器制造有限公司 Range hood, range hood cleaning device and range hood control method
CN104415929B (en) * 2013-08-26 2016-06-15 广东美的厨房电器制造有限公司 Range hood, the rinser of range hood and control method thereof
CN103454223A (en) * 2013-09-02 2013-12-18 四川长虹电器股份有限公司 System and method for detecting oil stain sediment of lampblack equipment
CN104849286A (en) * 2015-06-09 2015-08-19 广东美的厨房电器制造有限公司 Pollution degree treatment device and household appliance
CN104849286B (en) * 2015-06-09 2019-05-17 广东美的厨房电器制造有限公司 Dustiness processing unit and household electrical appliance
CN108139082A (en) * 2016-08-26 2018-06-08 深圳市赛亿科技开发有限公司 Smoke exhaust ventilator automatic flushing device and method
CN108139082B (en) * 2016-08-26 2020-05-01 深圳市赛亿科技开发有限公司 Automatic cleaning device and method for range hood
CN111023216A (en) * 2020-01-02 2020-04-17 珠海格力电器股份有限公司 Smoke machine

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