CN203215815U - Range hood air volume and air pressure compensation system based on variable frequency motor - Google Patents
Range hood air volume and air pressure compensation system based on variable frequency motor Download PDFInfo
- Publication number
- CN203215815U CN203215815U CN 201320217091 CN201320217091U CN203215815U CN 203215815 U CN203215815 U CN 203215815U CN 201320217091 CN201320217091 CN 201320217091 CN 201320217091 U CN201320217091 U CN 201320217091U CN 203215815 U CN203215815 U CN 203215815U
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- current
- motor
- frequency motor
- variable frequency
- phase inverter
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- 239000006096 absorbing agent Substances 0.000 claims abstract description 14
- 239000006233 lamp black Substances 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Abstract
The utility model discloses a lampblack absorber amount of wind pressure compensating system based on inverter motor, including three-phase inverter motor and have and be used for being converted into direct current rectifier with civilian alternating current, the input of rectifier is connected with civilian alternating current, be connected with the current control device who is used for adjusting input three-phase inverter motor actual current i and have the three-phase inverter who is used for converting the direct current into the alternating current between rectifier output and the three-phase inverter motor input in order, three-phase inverter motor feedback end is connected with the rotational speed detection device who is used for detecting its actual rotational speed r, rotational speed detection device is connected with the controller that is used for adjusting current control device output actual current i according to its actual rotational speed r that detects, the controller still is connected with three-phase inverter. The utility model discloses a motor operation is controlled to the feedback signal of monitoring current and motor speed, and the amount of wind of compensation electric wire netting and environmental change reaches user's application demand.
Description
[technical field]
The utility model relates to a kind of lampblack absorber airflow pressure bucking-out system based on variable-frequency motor.
[background technology]
The motor of tradition lampblack absorber all is operated under the open loop state of a control, and namely behind selected motor gear, the running of motor can only be followed environmental change passively, and for example the air quantity of traditional lampblack absorber can reduce rapidly along with the rising of environment blast.This kind variation is owing to be passive generation, so might not satisfy user's user demand.
Nowadays, along with the improvement of resident living environment, it is diversified that the kitchen exhaust pipeline becomes, and the open smoke discharging pipe that has rural households to use also has residential quarters domestic consumer's common flue etc., and the characteristic of these smoke discharging pipes has nothing in common with each other.According to existing national standard, the measurement of the exhaust air rate of smoke exhaust ventilator is the air quantity when zero static pressure, and operating efficiency is the total pressure efficiency when standard air quantity (7 cubes/minute).But mostly user's actual operating position be under non-experiment condition, and when for example public flue was used in the residential quarter, along with the user of public flue increases, blast also increased thereupon; For daily use, user's groundwork is at the air quantity more than 10 cubes/minute, and the variation of flue air pressure fluctuation and line voltage all can cause the smoke discharging effect of lampblack absorber to change.The air quantity of motor rotation can not suitably remedy the variation of environment under operate in open loop state.
Therefore, desirable smoke exhaust ventilator operating characteristic will be taken into account national standard and user's actual use needs.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, a kind of lampblack absorber airflow pressure bucking-out system based on variable-frequency motor is provided, control motor rotation by the voltage and current of monitoring electrical network and the feedback signal of rotating speed of motor, the air quantity of compensation network and environmental change, thus reach the application needs that more suit user's reality.
For achieving the above object, the utility model has adopted following technical proposal:
A kind of lampblack absorber airflow pressure bucking-out system based on variable-frequency motor, include three phase variable frequency motor 1 and be useful on civilian alternating current is transformed into galvanic rectifier 4, the input of described rectifier 4 is connected with civilian alternating current, be connected with in turn between described rectifier 4 outputs and three phase variable frequency motor 1 input for adjusting the current control device 3 of importing three phase variable frequency motor 1 actual current i and being useful on the three phase variable frequency inverter 2 that direct current is converted to alternating current, described three phase variable frequency motor 1 feedback end is connected with the speed detector 5 for detection of its actual speed r, described speed detector 5 is connected with the controller 6 of adjusting current control device 3 output actual current i for the actual speed r according to its detection, and described controller 6 also is connected with three phase variable frequency inverter 2.
Described three phase variable frequency motor 1 is brshless DC motor.
The civilian alternating current that described rectifier 4 connects is 140AC～240AC.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model has reached closed-loop control and the purpose of energy saving of system by using the motor frequency conversion technology in conjunction with feedback signal.
2, when are obstructed in common flue, the rising of outdoor air pressure or air channel, can suitably adjust electric machine operation state, guaranteeing has enough static pressure to compensate the loss of air quantity in the cigarette machine chamber.
3, when pressure outside reduces, for reaching energy-saving effect, can under the prerequisite that does not reduce smoke discharging effect, turn down the power output of motor.
[description of drawings]
Fig. 1 is structural representation of the present utility model.
[specific embodiment]
Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model:
As shown in Figure 1, a kind of lampblack absorber airflow pressure bucking-out system based on variable-frequency motor, include three phase variable frequency motor 1 and be useful on civilian alternating current is transformed into galvanic rectifier 4, the input of described rectifier 4 is connected with civilian alternating current, be connected with in turn between described rectifier 4 outputs and three phase variable frequency motor 1 input for adjusting the current control device 3 of importing three phase variable frequency motor 1 initial current i and being useful on the three phase variable frequency inverter 2 that direct current is converted to alternating current, described three phase variable frequency motor 1 feedback end is connected with the speed detector 5 for detection of its actual speed r, described speed detector 5 is connected with the controller 6 of adjusting current control device 3 output initial current i for the actual speed r according to its detection, and described controller 6 also is connected with three phase variable frequency inverter 2.
Operating current i＜the I of described three phase variable frequency motor 1, actual speed r＜R, described electric current I is the maximum operating currenbt that three phase variable frequency motor 1 pre-sets, rotating speed R is the maximum (top) speed that three phase variable frequency motor 1 pre-sets.
Described gear is many grades, air quantity of the corresponding output of described each gear.
Wherein the air quantity of lampblack absorber determines that by the blast of three phase variable frequency rotating speed of motor and external environment is common under the condition of work in the analog subscriber practical application, record smoke extractor at the needed different air quantity of different gears by experiment, the record experiment is current i
0With motor speed r
0Corresponding relation, and with in the data input controller 6, thereby the motor speed r in user's practical application is adjusted.When are obstructed in common flue, the rising of outdoor air pressure or air channel, controller 6 can suitably be adjusted three phase variable frequency motor 1 duty, guarantees to have in the lampblack absorber chamber loss of enough static pressure compensation air quantity, makes it reach the output of permanent wind amount; When pressure outside reduces, under the prerequisite that does not reduce smoke discharging effect, reduce the output current of current controller 6 and the power output that reduces three phase variable frequency motor 1 reaches energy-conservation effect.
Described three phase variable frequency motor 1 is brshless DC motor.
The civilian alternating current that described rectifier 4 connects is 140AC～240AC.
Three phase variable frequency motor 1 in the native system is brshless DC motor, is made up of motor body and driver.The electric current of controller control current sensing means output is adjusted the three phase variable frequency motor speed, reaches the effect that realizes smoke exhaust ventilator permanent wind amount operation work under the actual conditions.
Claims (3)
1. lampblack absorber airflow pressure bucking-out system based on variable-frequency motor, it is characterized in that: include three phase variable frequency motor (1) and be useful on civilian alternating current is transformed into galvanic rectifier (4), the input of described rectifier (4) is connected with civilian alternating current, be connected with in turn between described rectifier (4) output and three phase variable frequency motor (1) input for adjusting the current control device (3) of importing three phase variable frequency motor (1) actual current i and being useful on the three phase variable frequency inverter (2) that direct current is converted to alternating current, described three phase variable frequency motor (1) feedback end is connected with the speed detector (5) for detection of its actual speed r, described speed detector (5) is connected with the controller (6) of adjusting current control device (3) output actual current i for the actual speed r according to its detection, and described controller (6) also is connected with three phase variable frequency inverter (2).
2. a kind of lampblack absorber airflow pressure bucking-out system based on variable-frequency motor according to claim 1 is characterized in that described three phase variable frequency motor (1) is brshless DC motor.
3. a kind of lampblack absorber airflow pressure bucking-out system based on variable-frequency motor according to claim 1 is characterized in that the civilian alternating current that described rectifier (4) connects is 140AC～240AC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320217091 CN203215815U (en) | 2013-04-25 | 2013-04-25 | Range hood air volume and air pressure compensation system based on variable frequency motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320217091 CN203215815U (en) | 2013-04-25 | 2013-04-25 | Range hood air volume and air pressure compensation system based on variable frequency motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203215815U true CN203215815U (en) | 2013-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320217091 Expired - Lifetime CN203215815U (en) | 2013-04-25 | 2013-04-25 | Range hood air volume and air pressure compensation system based on variable frequency motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203215815U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216867A (en) * | 2013-04-25 | 2013-07-24 | 中山华帝燃具股份有限公司 | Range hood air volume and air pressure compensation system based on variable frequency motor and control method thereof |
| CN110068472A (en) * | 2019-05-14 | 2019-07-30 | 东华大学 | A kind of train air conditioning system air quantity accurate measurement method based on static pressure compensation |
-
2013
- 2013-04-25 CN CN 201320217091 patent/CN203215815U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216867A (en) * | 2013-04-25 | 2013-07-24 | 中山华帝燃具股份有限公司 | Range hood air volume and air pressure compensation system based on variable frequency motor and control method thereof |
| CN103216867B (en) * | 2013-04-25 | 2015-10-07 | 华帝股份有限公司 | Range hood air volume and air pressure compensation system based on variable frequency motor and control method thereof |
| CN110068472A (en) * | 2019-05-14 | 2019-07-30 | 东华大学 | A kind of train air conditioning system air quantity accurate measurement method based on static pressure compensation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: VATTI CO., LTD. Free format text: FORMER NAME: ZHONGSHAN CITY HUADI COMBUSTION UTENSILS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528400 Guangdong Province, Zhongshan City Xiaolan Industrial Avenue South Road No. 1 Patentee after: Vatti Co., Ltd. Address before: 528400 Guangdong Province, Zhongshan City Xiaolan Industrial Avenue South Road No. 1 Patentee before: Zhongshan City Huadi Combustion Utensils Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130925 Effective date of abandoning: 20151007 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130925 Effective date of abandoning: 20151007 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |