CN203375507U - Range hood with air quantity adjusting function and control system thereof - Google Patents
Range hood with air quantity adjusting function and control system thereof Download PDFInfo
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- CN203375507U CN203375507U CN201320389581.3U CN201320389581U CN203375507U CN 203375507 U CN203375507 U CN 203375507U CN 201320389581 U CN201320389581 U CN 201320389581U CN 203375507 U CN203375507 U CN 203375507U
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Abstract
The utility model discloses a range hood with an air quantity adjusting function and a control system thereof. The control system of the range hood comprises a power supply module, a motor drive module and a system control module, wherein the system control module comprises a master control chip, a slave control chip and a sensor set; the master control chip is connected with the sensor set; the motor drive module consists of an intelligent power module, a motor drive chip and a sampling and protecting circuit; the sensor set is used for detecting an operating state of the range hood and inputting the detected operating state to the master control chip; the master control chip is used for controlling the motor drive module according to the operating state of the range hood, so that a direct-current motor is driven to work. The utility model further discloses the range hood with the control system. According to the range hood with the air quantity adjusting function and the control system thereof disclosed by the utility model, the problem that influences of a kitchen environment and a public flue on the oil smoke suction effect cannot be comprehensively considered in the prior art is solved, so that the range hood not only is lower in noises, but also is energy-saving and environment-friendly.
Description
Technical field
The utility model relates to a kind of range hood and control system thereof of air quantity regulatory function.
Background technology
In the prior art, range hood generally only arranges two grades or third gear air quantity key, and after motor speed sets, motor can be according to actual kitchen environment or cooking method, regulate range hood air quantity and blast, it is adapted at any time and in the most reasonable duty.The air quantity for example needed when boiling and quick-fried is different, does not generally need very high air quantity during boiling, if open the maximum speed shelves when boiling, will cause unnecessary waste of energy.The oil smoke or the steam that in cooking process, often produce change at any time, existing range hood can initiatively not go to detect this variation, regulates at any time motor speed change air quantity and deacclimatizes, and can only manually by button, go continuous switching, this inconvenience very, also energy-conserving and environment-protective not.Referring to application number, be 201210036642.8, the specification that name of patent application is " a kind of rotation speed of fan self-adaptive regulating and control method thereof of lampblack absorber ", it can only be according to the resistance situation of air outlet, remove to regulate motor speed compensation air quantity, and according to oil smoke, the vapour concentration of air inlet, do not go to adjust motor output, do not have other producers can consider kitchen environment, cooking method and the common flue problem on the impact of blower fan yet.
The utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, provide a kind of rational in infrastructure, the range hood and control system and the control method that have automatic detection kitchen environment, cooking method and airflow pressure and regulate airflow pressure, solved in current product and can not consider kitchen environment and the common flue problem on the impact of smoke absorption effect.
The technical scheme that the utility model solves its technical problem employing comprises: a kind of control system of range hood of air quantity regulatory function is characterized in that described control system mainly comprises power module, motor drive module, system control module, power module provides dc source for motor drive module and system control module work, and system control module comprises main control chip, from the control chip, the sensor group, from control chip and key-press input, system display interface and main control chip all connect, and main control chip is connected with the sensor group, and motor drive module is by SPM, motor drive ic, sampling and holding circuit form, motor drive ic and main control chip, SPM, sampling and holding circuit all connect, sampling and holding circuit and direct current generator, SPM connects, and the sensor group detects the range hood running status and is input to main control chip, and main control chip is controlled motor drive module according to the range hood running status, thereby drives direct current generator work.
Sensor group described in the utility model comprises air inlet oil smoke sensor, air inlet moisture sensor, and air inlet oil smoke sensor is used for detecting the oil smoke concentration of air inlet, and the air inlet moisture sensor is used for detecting the vapour concentration of air inlet.
Be provided with direct current generator inverse electromotive force detection module in sampling described in the utility model and holding circuit, direct current generator inverse electromotive force detection module and direct current generator, SPM are connected and are used for detecting the drive current of direct current generator.
Sensor group described in the utility model also is provided with the air outlet baroceptor, and the air outlet baroceptor is used for detecting the air pressure in air port.
Direct current generator described in the utility model can be direct current variable frequency motor.
Sensor group described in the utility model can comprise any sensor of perception cooking method, temperature, humidity, oil smoke concentration, gas componant.
The technical scheme that the utility model solves its technical problem employing also comprises:
A kind of range hood of air quantity regulatory function, comprise body, direct current generator, and described direct current generator is arranged on body, it is characterized in that described range hood is provided with above-mentioned control system.
If in the range hood course of work, aqueous vapor or oil smoke concentration in kitchen change, and the sensor group sends to main control chip by the signal collected, and main control chip drives the direct current generator acceleration or deceleration according to the difference of the variation of concentration.
Equally, if in the range hood course of work, because common flue stops up or air inlet narrows down, to such an extent as to air-flow does not freely cause the air inlet static pressure to increase, direct current generator inverse electromotive force detection module or air outlet baroceptor can detect this variation and it is fed back to main control chip; Perhaps air quantity reduces, the fan blade resistance becomes large acting and reduces, the real-time current signal that direct current generator inverse electromotive force detection module collects changes, and calculate the direct current generator torque and diminish, thereby the perception ducting system has occurred change and main control chip is fed back.In order to maintain smoke absorption effect, main control chip carries out compensated torque at once by motor drive ic, make direct current generator maintain constant torque output constant, at this moment DC motor speed rises, the fan blade working power promotes, and air quantity strengthens, and substantially is increased to the air quantity state before air channel is stopped up, thereby obtain approximate permanent wind dose-effect fruit, guarantee that smoke absorption effect is unaffected.
The utility model compared with prior art, have the following advantages and effect: for kitchen environment and common flue, carry out complete detection, when the air pressure change of kitchen environment or common flue, main control chip carries out the COMPREHENSIVE CALCULATING processing according to the signal received, and control the direct current increase or reduce direct current generator drive current (power output), corresponding increase or reduction rotating speed, thus can guarantee can accomplish energy-conserving and environment-protective again to the compensation of loss air quantity.
The accompanying drawing explanation
Fig. 1 is the front view of the utility model range hood.
Fig. 2 is the side view of the utility model range hood.
Fig. 3 is the structured flowchart of the utility model embodiment range hood control system.
The specific embodiment
Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail, and following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Referring to Fig. 1～Fig. 3, the present embodiment range hood comprises body 1, air inlet 2, air channel 3, guidance panel 4, fan blade 6, direct current generator 7, the air outlet 9 of prior art, guidance panel 4 is provided with key-press input 41 and system display interface 42, its design feature is also to be provided with control system 5 and sensor group 8, and described control system 5 mainly is comprised of power module, motor drive module, system control module.
Power module comprises power supply input 51, filtering voltage regulation module 52, switch power module, power supply input 51 is after filtering after Voltage stabilizing module 52 voltage regulation filterings, be respectively SPM 55(IPM module) and switch power module power supply input is provided, switch power module comprises that driving control system for electric machine power supply 53(provides power supply for driving control system for electric machine) and system control module power supply 54(provide dc source for system control module work).System control module comprises main control chip 58, from control chip 59, sensor group 8.From 59 pairs of key-press input 41 signals of control chip, processed, and the current range hood running status of control system display interface 42 indication; From adopting serial mode to communicate between control chip 59 and main control chip 58.
58 pairs of sensor groups 8 of main control chip, the motor drive module signal is processed, sensor group 8 detects running status and (comprises oil smoke concentration in kitchen, vapour concentration, also can detect air channel 3 exhaust situations by setting out the air port sensor), and be converted into the signal of telecommunication and be input to main control chip 58, 58 pairs of range hood running statuses of main control chip (comprise oil smoke concentration, vapour concentration, can also comprise the direct current generator inverse electromotive force) whether after the judgement of initial setting scope, determine that appropriate airflow value (being appropriate direct current generator 7 drive currents or rotating speed) also sends to this instruction the SPM 55 of motor drive module, thereby drive direct current generator 7 according to this instruction works, main control chip 58 is communicated by letter by serial mode with motor drive ic 56, and main control chip 58 is also controlled illumination output 60.
As a kind of special case; motor drive module is comprised of SPM 55, motor drive ic 56, sampling and holding circuit 57; be provided with direct current generator inverse electromotive force detection module in sampling and holding circuit 57, direct current generator inverse electromotive force detection module and direct current generator 7, SPM 55 are connected and are used for detecting the drive current (or actual speed of fan blade 6) of direct current generator 7.After motor drive ic 56 receives the airflow value signal of main control chip 58; control SPM 55 and drive direct current generator 7 operations; and carry out real-time sampling by the duty of sampling and 57 pairs of direct current generators 7 of holding circuit and SPM 55, protection extremely in time appears.
The present embodiment direct current generator inverse electromotive force detection module can be used for detecting air channel 3 exhaust situations, when air channel 3 exhaust situations change (direct current generator inverse electromotive force detected value exceeds the initial setting scope of range hood direct current generator inverse electromotive force), thereby in the time of can't providing the most rational air quantity due to resistance increment, motor drive ic 56(sampling and holding circuit 57) can monitor this variation by direct current generator inverse electromotive force detection module, and feed back to main control chip 58, main control chip 58 is through computing, draw reasonable air quantity compensation rate, then operation result is passed to direct current generator 7 again, direct current generator 7 is accomplished the substantially constant of air quantity by improving rotating speed.Owing to not needing the air outlet sensor, this mode has been saved cost and not fragile.
Appropriate airflow value described in the utility model can be determined according to actual range hood technical parameter.
The initial setting scope of the described oil smoke concentration of the utility model embodiment, vapour concentration, direct current generator inverse electromotive force refers to this model range hood oil smoke concentration, vapour concentration, standard figures scope corresponding to air channel exhaust situation when a certain duty, can by detection statistics, determine according to actual conditions.
When air outlet 9 air pressure or direct current generator 7 drive currents change, thereby in the time of can't providing the most rational air quantity due to resistance increment, air outlet baroceptor or motor driving sensor will monitor this variation, and feed back to main control chip 58, main control chip 58 is through computing, draw reasonable air quantity compensation rate, then operation result is passed to the motor drive ic 56 of direct current generator 7 again, drive direct current generator 7 to accomplish the substantially constant of air quantity by improving rotating speed.
Equally, steam or oil smoke concentration in kitchen change, air inlet moisture sensor or air inlet oil smoke sensor send to main control chip 58 by the signal collected, and main control chip 58 drives direct current generator 7 acceleration or decelerations to maintain rational air quantity according to the variation of vapour concentration or oil smoke concentration as calculated.
This range hood with kitchen environment detection and airflow pressure feedback function of the utility model, all the time make range hood be in the most rational duty, adjust air quantity by the real-time speed change of direct current generator 7 and meet the oil smoke surroundings in current cooking method and kitchen, can play energy-conservation purpose.When adopt producing the relatively less cooking method of oil smoke amount, reduce direct current generator 7 rotating speeds, thereby reduce noise, give quiet comfortable kitchen environment of user, when oil smoke becomes large or ambient pressure and becomes large, promote direct current generator 7 rotating speeds.
The utility model has overcome the unilateral problem of prior art Consideration, has taken into full account the various factors that may affect the smoke pumping effect, by the various signal datas of main control chip integrated treatment, makes the equipment effect more intelligent, also energy-conserving and environment-protective more.It needs to be noted, the data processing technique of the various signal datas of main control chip 58 integrated treatment is that those skilled in the art can know, but never the people expects the detection signal of air inlet oil smoke sensor, air inlet moisture sensor, air outlet baroceptor, direct current generator inverse electromotive force is integrated to consideration, this utility model design that to be also present patent application create through long-term market survey and production practices, and obtained aborning better technique effect.
Above content described in this specification is only to the explanation of the utility model structure example.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.
Claims (6)
1. the control system of the range hood of an air quantity regulatory function, it is characterized in that: described control system mainly comprises power module, motor drive module, system control module, power module provides dc source for motor drive module and system control module work, system control module comprises main control chip, from the control chip, the sensor group, from control chip and key-press input, system display interface and main control chip all connect, main control chip is connected with the sensor group, motor drive module is by SPM, motor drive ic, sampling and holding circuit form, motor drive ic and main control chip, SPM, sampling and holding circuit all connect, sampling and holding circuit and direct current generator, SPM connects, the sensor group detects the range hood running status and is input to main control chip, main control chip is controlled motor drive module and is driven direct current generator work.
2. the control system of range hood according to claim 1, it is characterized in that: described sensor group comprises air inlet oil smoke sensor, air inlet moisture sensor, air inlet oil smoke sensor is used for detecting the oil smoke concentration of air inlet, and the air inlet moisture sensor is used for detecting the vapour concentration of air inlet.
3. the control system of range hood according to claim 2; it is characterized in that: be provided with direct current generator inverse electromotive force detection module in described sampling and holding circuit, direct current generator inverse electromotive force detection module and direct current generator, SPM are connected and are used for detecting the drive current of direct current generator.
4. the control system of range hood according to claim 2, it is characterized in that: described sensor group also is provided with the air outlet baroceptor, and the air outlet baroceptor is used for detecting the air pressure in air port.
5. according to the control system of the described range hood of the arbitrary claim of claim 1～4, it is characterized in that: described direct current generator is direct current variable frequency motor.
6. the range hood of an air quantity regulatory function, comprise body, direct current generator, and described direct current generator is arranged on body, it is characterized in that: described range hood is provided with the described control system of the arbitrary claim of claim 1～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320389581.3U CN203375507U (en) | 2013-07-02 | 2013-07-02 | Range hood with air quantity adjusting function and control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320389581.3U CN203375507U (en) | 2013-07-02 | 2013-07-02 | Range hood with air quantity adjusting function and control system thereof |
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| CN203375507U true CN203375507U (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320389581.3U Expired - Lifetime CN203375507U (en) | 2013-07-02 | 2013-07-02 | Range hood with air quantity adjusting function and control system thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353136A (en) * | 2013-07-02 | 2013-10-16 | 德意电器股份有限公司 | Range hood with air regulation function, and control system and control method thereof |
| CN106051860A (en) * | 2016-06-22 | 2016-10-26 | 无锡昊瑜节能环保设备有限公司 | Energy-saving soot absorber |
| CN110906399A (en) * | 2019-11-26 | 2020-03-24 | 珠海格力电器股份有限公司 | Range hood control method and device and range hood |
| CN112146140A (en) * | 2019-06-26 | 2020-12-29 | 九阳股份有限公司 | Cooking platform control method and cooking platform |
-
2013
- 2013-07-02 CN CN201320389581.3U patent/CN203375507U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353136A (en) * | 2013-07-02 | 2013-10-16 | 德意电器股份有限公司 | Range hood with air regulation function, and control system and control method thereof |
| CN103353136B (en) * | 2013-07-02 | 2015-09-09 | 德意电器股份有限公司 | A kind of there is air quantity regulatory function range hood and control system and control method |
| CN106051860A (en) * | 2016-06-22 | 2016-10-26 | 无锡昊瑜节能环保设备有限公司 | Energy-saving soot absorber |
| CN112146140A (en) * | 2019-06-26 | 2020-12-29 | 九阳股份有限公司 | Cooking platform control method and cooking platform |
| CN110906399A (en) * | 2019-11-26 | 2020-03-24 | 珠海格力电器股份有限公司 | Range hood control method and device and range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Block south of Xiaoshan economic and Technological Development Zone Xiaoshan Hongxing Road District of Hangzhou City, Zhejiang province 311215 No. 98 Patentee after: HANGZHOU DE&E ELECTRICAL Co.,Ltd. Address before: 311215 Xiaoshan Economic Development Zone, Zhejiang District, Hangzhou Road No. three, No. 36 Patentee before: DE&E APPLIANCES Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |
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| CX01 | Expiry of patent term |