CN207094708U - A kind of frequency conversion range hood - Google Patents
A kind of frequency conversion range hood Download PDFInfo
- Publication number
- CN207094708U CN207094708U CN201720789305.4U CN201720789305U CN207094708U CN 207094708 U CN207094708 U CN 207094708U CN 201720789305 U CN201720789305 U CN 201720789305U CN 207094708 U CN207094708 U CN 207094708U
- Authority
- CN
- China
- Prior art keywords
- frequency
- controller
- module
- output
- smoke sensor
- Prior art date
- 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.)
- Active
Links
Abstract
A kind of frequency conversion range hood, including blower motor and the power module to blower motor power supply, it is characterised in that：Also include controller, Smoke Sensor, memory module and frequency-variable module, the signal output part of Smoke Sensor electrically connects with the signal input part of controller, memory module is stored with the data read for controller, frequency-variable module has the input interface being electrically connected with controller and the output interface being electrically connected with the blower motor, controller can control the output frequency of the frequency-variable module according to the output signal of Smoke Sensor and the data of memory module, and then adjust the rotating speed of the blower motor.The frequency conversion range hood obtains smog change to control the output frequency of frequency-variable module by Smoke Sensor, allow motor more promptly speed governing, not only need not be using the speed governing winding concatenation speed governing for comparing power consumption during frequency conversion, conversion efficiency is higher, and can realize that range hood adjusts in the bigger range of speeds by change frequency rapidly, lift Consumer's Experience.
Description
Technical field
A kind of range hood is the utility model is related to, more particularly, to a kind of frequency conversion range hood.
Background technology
At present, range hood alternating current generator makes rotating speed there was only 1500 turns in civil power 50Hz due to field synchronous, due to
Its overall rotating speed can not break through 1500 turns, thus can not realize bigger effective wind rate under the big common duct environment of resistance.
For example in the case of the oil smoke such as quick-fried are widely varied, if blower motor is limited by 1500 turns of rotating speed, quick-fried can be caused
Caused a large amount of oil smoke can not be drawn into inside range hood, and the oil smoke of escape can pollute air in kitchen.For above-mentioned alternating current
Machine can not frequency conversion the defects of, it is disclosed in the prior art to have the frequency conversion fume-exhausting for carrying out regulation motor rotating speed by using variable-frequency motor
Machine, such as the Chinese utility model patent of Patent No. ZL 201420826305.3 (Authorization Notice No. is the U of CN 204373022)
Disclosed《A kind of intelligent frequency-conversion range hood》, it includes exhaust fume collecting hood, control assembly and fan assembly, control assembly include according to
Power module, system control module and the motor drive module of secondary electrical connection, the motor of fan assembly is alternating-current variable frequency motor, control
Component processed also includes the context detection module being connected between power module and system control module and flue negative pressure detection
Module, context detection module are arranged on the air inlet of exhaust fume collecting hood, and flue negative pressure detection module is arranged on the smoke evacuation of fan assembly
At mouthful.The intelligent frequency-conversion range hood uses alternating-current variable frequency motor, and the operation of alternating-current variable frequency motor is only adjusted with one piece of circuit board
Speed, so as to realize the control of variable speed, its shortcoming is that alternating-current variable frequency motor need to use the speed governing winding concatenation for comparing power consumption
Speed governing, not only adjustable range is small, less efficient, and energy consumption is higher, is unfavorable for saving.
Utility model content
Technical problem to be solved in the utility model is to be directed to above-mentioned state of the art, there is provided a kind of conversion efficiency
Frequency conversion range hood high, adjustable range is big.
Technical scheme is used by the utility model solves above-mentioned technical problem：The frequency conversion range hood, including blower fan
Motor and the power module to blower motor power supply, it is characterised in that：Also include controller, Smoke Sensor, memory module and
Frequency-variable module, the signal output part of the Smoke Sensor electrically connect with the signal input part of the controller, the storage mould
Block is stored with the data read for controller, the frequency-variable module have the input interface that is electrically connected with the controller and with
The output interface that the blower motor is electrically connected, the controller can be according to the output signals and memory module of Smoke Sensor
Data control the output frequency of the frequency-variable module, and then adjust the rotating speed of the blower motor.
Preferably, the frequency conversion range hood also includes exhaust fume collecting hood and blower hood, and the blower motor is arranged on described
In blower hood, the Smoke Sensor is arranged on the exhaust fume collecting hood.
The control method of the frequency conversion range hood, it is characterised in that including following rate-determining steps：
(1), range hood is after user presses start button, and frequency-variable module is started working and exports lower frequency f1, blower fan
Motor starts to start and setting time t1 is run under frequency f1；
(2), the blower motor starts to electric current close to after running current, and the frequency-variable module exports default frequency
F2, blower motor start to run under frequency f2；
(3), the controller judges run time of the blower fan in output frequency f2, if run time is less than setting time t2,
Then blower fan keeps output frequency f2 to continue to run with, if run time reaches setting time t2, into step (4)；
(4), the controller enters to judge to the current frequency of frequency-variable module,
If 1., f2 >=fd, controller obtain preset time in oil smoke concentration hourly value m and rate of change Δ m so that make such as
Lower judgement：
If m ＞ m1, output frequency are constant；
If m≤m1, output frequency reduces by 1 grade；
If 2., fx ＜ f2 ＜ fd, controller obtain preset time in oil smoke concentration hourly value m and rate of change Δ m and then
Make following judgement：
If m≤m1, output frequency reduces by 1 grade；
If m1 ＜ m≤m2, and Δ m ＜ n, then output frequency is kept constant；
If m1 ＜ m≤m2, and Δ m >=n, then output frequency rises 1 grade；
If m >=m2, output frequency rises 2 grades；
If 3., f2≤fx, controller obtain preset time in oil smoke concentration hourly value m and rate of change Δ m so that make such as
Lower judgement：
If m≤m1, output frequency keeps constant；
If m1 ＜ m≤m2, and Δ m ＜ n, then output frequency rises 1 grade；
If m1 ＜ m≤m2, and Δ m >=n, then output frequency rises 2 grades；
If m >=m2, output frequency rises 3 grades.
Compared with prior art, the utility model has the advantage of：The frequency conversion range hood is obtained by Smoke Sensor
Smog change controls the output frequency of frequency-variable module so that motor can more promptly speed governing, not only need not adopt during frequency conversion
Speed governing is concatenated with the speed governing winding for comparing power consumption, conversion efficiency is higher, and can realize that range hood exists by change frequency rapidly
Adjusted in the bigger range of speeds, meet the need of needs high rotating speed Wind Volume when the small air quantity Baoshang of user and common duct quick-fried
Ask, motor speed can be significantly adjusted under bad working environments to be prevented from running cigarette, again can be with lower frequency in the case of small oil smoke
Operation, so as to reduce energy consumption, makes range hood quieter when working, and lifts Consumer's Experience.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is the structure sectional view of the utility model embodiment；
Fig. 3 is the control module schematic diagram of the utility model embodiment；
Fig. 4 is the control logic figure of the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Figure 1 to Figure 3, the frequency conversion range hood in the present embodiment includes blower motor 1, power module 2, controller
3rd, Smoke Sensor 4, memory module 5, frequency-variable module 6, exhaust fume collecting hood 7 and blower hood 8 etc..Wherein, blower motor 1 is arranged on wind
Machine outer cover 8 you, power module 2 is powered to blower motor 1, Smoke Sensor 4 be arranged on exhaust fume collecting hood 7 on, the letter of Smoke Sensor 4
Number output end electrically connects with the signal input part of controller 3, and memory module 5 is stored with the data read for controller 3, frequency conversion mould
Block 6 has input interface and output interface, and input interface is electrically connected with controller 3, and output interface is electrically connected with the phase of blower motor 1
Connect.Controller 3 can control the output frequency of frequency-variable module 6 according to the output signal of Smoke Sensor 4 and the data of memory module 5
Rate, and then adjust the rotating speed of blower motor 1.
As shown in figure 4, the conversion method of the frequency conversion range hood comprises the following steps：
(1), range hood is after user presses start button, and frequency-variable module 6 is started working and exports lower frequency f1, wind
Electromechanical machine 1 starts to start and setting time t1 is run under frequency f1；
(2), blower motor 1 starts to electric current close to after running current, and frequency-variable module 6 exports default frequency f2, blower fan
Motor 1 starts to run under frequency f2；
(3), controller 3 judges run time of the blower fan in output frequency f2, if run time is less than setting time t2,
Blower fan keeps output frequency f2 to continue to run with, if run time reaches setting time t2, into step (4)；
(4), controller 3 enters to judge to the current frequency of frequency-variable module 6,
If 1., f2 >=fd, controller obtain preset time in oil smoke concentration hourly value m and rate of change Δ m so that make such as
Lower judgement：
If m ＞ m1, output frequency are constant；
If m≤m1, output frequency reduces by 1 grade；
If 2., fx ＜ f2 ＜ fd, controller obtain preset time in oil smoke concentration hourly value m and rate of change Δ m and then
Make following judgement：
If m≤m1, output frequency reduces by 1 grade；
If m1 ＜ m≤m2, and Δ m ＜ n, then output frequency is kept constant；
If m1 ＜ m≤m2, and Δ m >=n, then output frequency rises 1 grade；
If m >=m2, output frequency rises 2 grades；
If 3., f2≤fx, controller obtain preset time in oil smoke concentration hourly value m and rate of change Δ m so that make such as
Lower judgement：
If m≤m1, output frequency keeps constant；
If m1 ＜ m≤m2, and Δ m ＜ n, then output frequency rises 1 grade；
If m1 ＜ m≤m2, and Δ m >=n, then output frequency rises 2 grades；
If m >=m2, output frequency rises 3 grades.
The step (4) in, fd be memory give tacit consent to peak frequency, fx be memory give tacit consent to minimum frequency, m1 is preset time
The relatively low reference limitation of interior smokescope time average, concentration is less than m1 i.e. it is believed that current smog is smaller, it is not necessary to carries
Raising frequency rate, m2 are the relatively high reference limitation of smokescope time average in preset time, and concentration is higher than m2 i.e. it is believed that current
Smog compares very big, it is necessary to lift frequency as early as possible, and n is the limitation reference of smokescope changing value in preset time, recognizes more than n
It is violent for smog change.
There is above-mentioned control method to understand, the frequency conversion range hood just starts to run with lower frequency (it is big to reduce startup moment
Rush of current), default frequency operation a period of time is then switched to, subsequent controller obtains the change of smokescope in preset time
Change situation, frequency-variable module is controlled according to situation of change, changes frequency and then change the rotating speed of motor operation.Change in concentration
Rate directly affects the change size of frequency-variable module output frequency, solve traditional range hood can only according to Smoke Sensor or
Exit static pressure and curent change change the problem of several gears tackle oil smoke harsh conditions to fix, rapider to become
Change frequency, and then significantly adjustment motor speed prevents the race cigarette of bad working environments, is run again with lower frequency in small oil smoke situation
Energy consumption can be reduced, and it is quieter, lift Consumer's Experience.
It the foregoing is only preferred embodiment of the present utility model, it is noted that for those of ordinary skill in the art
For, under the premise of principle of the present utility model is not departed from, a variety of remodeling or improvement can be carried out to the utility model, these are equal
It is considered as within the scope of protection of the utility model.
Claims (2)
1. a kind of frequency conversion range hood, including blower motor (1) and the power module (2) to blower motor power supply, its feature exist
In：Also include controller (3), Smoke Sensor (4), memory module (5) and frequency-variable module (6), the Smoke Sensor (4)
Signal output part is electrically connected with the signal input part of the controller (3), and the memory module (5) is stored with for controller (3)
The data of reading, the frequency-variable module (6) are electric with the input interface being electrically connected with the controller (3) and with the blower fan
The output interface that machine (1) is electrically connected, the controller (3) can be according to the output signals and memory module of Smoke Sensor (4)
(5) data control the output frequency of the frequency-variable module (6), and then adjust the rotating speed of the blower motor (1).
2. frequency conversion range hood according to claim 1, it is characterised in that：Also include exhaust fume collecting hood (7) and blower hood
(8), the blower motor (1) is arranged in the blower hood (8), and the Smoke Sensor (4) is arranged on the exhaust fume collecting hood
(7) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720789305.4U CN207094708U (en) | 2017-06-30 | 2017-06-30 | A kind of frequency conversion range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720789305.4U CN207094708U (en) | 2017-06-30 | 2017-06-30 | A kind of frequency conversion range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207094708U true CN207094708U (en) | 2018-03-13 |
Family
ID=61554915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720789305.4U Active CN207094708U (en) | 2017-06-30 | 2017-06-30 | A kind of frequency conversion range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207094708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006760A (en) * | 2017-06-30 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of frequency conversion range hood and its control method |
-
2017
- 2017-06-30 CN CN201720789305.4U patent/CN207094708U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006760A (en) * | 2017-06-30 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of frequency conversion range hood and its control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103940045B (en) | Solar airconditioning and control method thereof and control device | |
| CN102374561B (en) | There is range hood and the control method thereof of automatic flue gas detection device | |
| CN108006760A (en) | A kind of frequency conversion range hood and its control method | |
| CN206274367U (en) | Anti-dry protection circuit and use its household electrical appliance | |
| CN104266424B (en) | A kind of heat pump frequency-changing control system and method | |
| CN207094708U (en) | A kind of frequency conversion range hood | |
| CN108041978B (en) | Intelligent smokeless hot pot device capable of automatically adjusting fan power and working method | |
| CN202171641U (en) | Carrier wave power supply monitoring module | |
| CN108006761A (en) | A kind of frequency conversion range hood and its method for controlling frequency conversion | |
| CN203070131U (en) | Cooler control system for power transformer | |
| CN207094709U (en) | A kind of frequency conversion range hood | |
| CN109870962A (en) | A kind of control system and its control method of hair dryer | |
| CN202250966U (en) | Energy-saving floor fan capable of detecting human body | |
| CN110617700A (en) | Energy-saving regulation and control method of intelligent dryer | |
| CN106955055A (en) | A kind of intelligent automatic hand-dryer of combination ultrasonic ranging | |
| CN105626494B (en) | The control method and system of DC water pump, water pump component and steam cooking vessel | |
| CN203243279U (en) | Intelligent energy-saving motor with cooling circulation system | |
| CN208228818U (en) | A kind of water dispenser of energy auto sleep | |
| CN203255968U (en) | Frequency-conversion and energy-saving device of oxygen generator | |
| CN209375506U (en) | A kind of generator soft starting device avoiding secondary pulse electric current | |
| CN203166769U (en) | High voltage frequency converter having rotating speed tracking and starting function | |
| CN208508830U (en) | A kind of electric clothes airing machine frequency conversion control circuit | |
| CN203027170U (en) | Low voltage frequency converter with rotating speed tracing start function | |
| CN106051864A (en) | Control device of smoke exhaust ventilator, smoke exhaust ventilator and control method of smoke exhaust ventilator | |
| CN203964255U (en) | A kind of intelligent energy-saving control system of tail end of central air conditioner pressure fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |