CN207990716U - A kind of smoke exhaust ventilator driving device - Google Patents
A kind of smoke exhaust ventilator driving device Download PDFInfo
- Publication number
- CN207990716U CN207990716U CN201721816738.0U CN201721816738U CN207990716U CN 207990716 U CN207990716 U CN 207990716U CN 201721816738 U CN201721816738 U CN 201721816738U CN 207990716 U CN207990716 U CN 207990716U
- Authority
- CN
- China
- Prior art keywords
- relay
- connect
- driving device
- controller
- exhaust ventilator
- 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.)
- Expired - Fee Related
Links
Landscapes
- Ventilation (AREA)
Abstract
The utility model discloses a kind of smoke exhaust ventilator driving devices.Specifically, the driving device includes solar panel, accumulator, controller, inverter and oil smoke concentration sensor；Electric energy is provided by solar panel, oil smoke concentration signal is detected by oil smoke concentration sensor, and adjust the rotating speed of the motor of smoke exhaust ventilator in real time according to oil smoke concentration signal by controller and inverter, it is realized by using solar energy and the in real time mode of adjustment rotating speed energy saving, and rotating speed is adjusted according to oil smoke concentration signal, without manual adjustment, the health of diet ensure that.
Description
Technical field
The utility model is related to smoke exhaust ventilator field, more particularly to a kind of smoke exhaust ventilator driving device.
Background technology
In general, smoke exhaust ventilator rotating speed is manually adjusted, and existing smoke exhaust ventilator is all made of alternating current and provides electric energy, to reach
To best oil extraction effect and energy saving purpose, smoke exhaust ventilator button need to be frequently touched when cooking, it is also totally unfavorable to dietetic hygiene,
It cannot reach energy saving in real time.
Utility model content
The purpose of this utility model is, in order to realize energy saving in real time and ensure dietetic hygiene, to provide a kind of smoke exhaust ventilator drive
Dynamic device.
To achieve the above object, the present invention provides following schemes：
A kind of smoke exhaust ventilator driving device, the driving device include solar panel, accumulator, controller, inversion
Device and oil smoke concentration sensor；
The solar panel is connect with the accumulator, and the solar panel is straight for converting solar energy into
Galvanic electricity, and the direct current is conveyed to the accumulator and is charged for the accumulator；
The accumulator is connect with the inverter, and the accumulator is used to provide direct current for the inverter；
The oil smoke concentration sensor is connect with the controller, and the oil smoke concentration sensor is for detecting the dense of oil smoke
Degree obtains oil smoke concentration signal, and the oil smoke concentration signal is conveyed to the controller；
The controller is connect with the inverter, and the controller is used to generate control letter according to the concentration signal
Number, and the control signal is exported to the inverter；
The motor of the inverter and smoke exhaust ventilator connects, and the inverter is used for will be described straight according to the control signal
Galvanic electricity is converted into the alternating current of different frequency, and the exchange electricity output of the different frequency is given to the motor of the smoke exhaust ventilator,
Drive the motor of the smoke exhaust ventilator with different rotational speeds；The motor includes left motor and right motor.
Optionally, the driving device further includes switching push button, the first relay and the second relay；
The switching push button is connect with the controller；The switching push button is used to generate switching according to the operation of user
Signal, and the switching signal is sent to the controller；
The controller is also connect with the control terminal of the control terminal of first relay and the second relay respectively, described
Controller is additionally operable to according to switching signal, generate switch-over control signal, and switching control control signal is conveyed to described
First relay and second relay；
First relay is set between the accumulator and the inverter, and first relay is used for basis
The switch-over control signal cuts off or is closed the connection line between the accumulator and the inverter；
Second relay is set between the alternating current and electricity driving device, and second relay is used for basis
The switch-over control signal, cut-out or the connection line being closed between alternating current and electricity driving device.
Optionally, the electricity driving device includes a gear control button, two gear control buttons, three gear control buttons, a left side
Motor relay, right motor relay；
The one gear control button is set between alternating current and the control terminal of the left motor relay, the gear control
Button is for controlling being opened or closed for the left motor relay；
The input terminal of the left motor relay is connect with the output end of second relay, the left motor relay
Output end connect with the left motor, the left motor relay is for cutting off or connect second relay and the left side
Connection line between motor；
The two gears control button is set between alternating current and the control terminal of the right motor relay, the two gears control
Button is for controlling being opened or closed for the right motor relay；
The input terminal of the right motor relay is connect with the output end of second relay, the right motor relay
Output connect with the right motor, the right motor relay is for cutting off or connect second relay and the right electricity
Connection line between machine；
The three gears control button is the normally opened button of two-way, wherein being set to the alternating current and the left motor relay all the way
Between the control terminal of device, for controlling being opened or closed for the left motor relay, another way is set to alternating current and the right side
Between the control terminal of motor relay, for controlling being opened or closed for the right motor relay.
Optionally, it is provided between the gear control button, the two gear control button and the three gears control button
Mutual interlocking gear, the mutual interlocking gear is for making a gear control button, two gear control buttons and three gear control buttons in the same time
It can only at most be pressed there are one button.
Optionally, the inverter includes the first single-phase full bridge inverter circuit and the second single-phase full bridge inverter circuit；
The control terminal of first single-phase full bridge inverter circuit and second single-phase full bridge inverter circuit with the control
Device connection processed；
The input terminal of first single-phase full bridge inverter circuit is connect with the accumulator, the first single-phase full bridge circuit
Output end connect with the left motor of the smoke exhaust ventilator；First single-phase full bridge inverter circuit is used for according to the controller
Control the direct current that the accumulator exports is converted into the alternating current of different frequency, and by the alternating current of the different frequency
It exports to the left motor, drives the left motor with different rotational speeds；
The input terminal of second single-phase full bridge inverter circuit is connect with the accumulator, the second single-phase full bridge circuit
Output end connect with the right motor of the smoke exhaust ventilator, second single-phase full bridge inverter circuit be used for according to the controller
Control the direct current that the accumulator exports is converted into the alternating current of different frequency, and by the alternating current of the different frequency
It exports to the right motor, drives the right motor with different rotational speeds.
Optionally, the driving device further includes regulator circuit, and the input terminal of the regulator circuit is electrically connected with city, described
The output end of regulator circuit is connect with the power input of the controller and the oil smoke concentration sensor, the regulator circuit
DC voltage for the alternating current of city's electricity output to be converted into voltage stabilization is the controller and the oil smoke concentration
Sensor is powered.
Optionally, the regulator circuit includes transformer, rectification circuit and filter circuit of pressure-stabilizing；
The input terminal of the transformer is electrically connected with city, the input terminal of the output end of the inverter and the rectification circuit
Connection；
The output end of the rectification circuit is connect with the input terminal of the filter circuit of pressure-stabilizing；
The power input of the output end of the filter circuit of pressure-stabilizing and the controller and the oil smoke concentration sensor
Connection.
Optionally, the controller includes LM3914 microcontrollers.
Optionally, the driving device further includes charger, and the input terminal of the charger is electrically connected with city, the charging
The output end of device is connect with the accumulator, and the charger is used in the discharged or defective battery, and alternating current is converted into direct current
Electricity is to charge the battery.
According to specific embodiment provided by the utility model, utility model discloses following technique effect：
The utility model discloses a kind of smoke exhaust ventilator driving device, the driving device includes solar panel, stores
Battery, controller, inverter and oil smoke concentration sensor；Electric energy is provided by solar panel, is sensed by oil smoke concentration
Device detects oil smoke concentration signal, and adjusts the motor of smoke exhaust ventilator in real time according to oil smoke concentration signal by controller and inverter
Rotating speed, by using solar energy and in real time adjustment rotating speed mode realize it is energy saving, and according to oil smoke concentration signal adjustment turn
Speed is not necessarily to manual adjustment, ensure that the health of diet.
The driving device of the utility model further includes the switching push button switched with the driving device of existing smoke exhaust ventilator,
One relay and the second relay realize the switching of the driving device and existing driving device of the utility model.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without having to pay creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of structure diagram of smoke exhaust ventilator driving device provided by the utility model；
Fig. 2 is a kind of structure diagram of the electricity driving device of smoke exhaust ventilator driving device provided by the utility model.
Specific implementation mode
The purpose of this utility model is to provide a kind of smoke exhaust ventilator driving device, to realize energy saving in real time and ensure that diet is defended
It is raw.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
As shown in Figure 1, the present invention provides a kind of smoke exhaust ventilator driving device, the driving device includes solar cell
Plate 101, accumulator 102, controller 103, inverter 104 and oil smoke concentration sensor 105.
The solar panel 101 is connect with the accumulator 102, and the solar panel 101 is used for the sun
It can be converted into direct current, and the direct current is conveyed to the accumulator 102 and is charged for the accumulator；
The accumulator 102 is connect with the inverter 103, and the accumulator 102 is used to provide for the inverter 103
Direct current；
The oil smoke concentration sensor 105 is connect with the controller 104, and the oil smoke concentration sensor 105 is for examining
The concentration of oil smoke is surveyed, obtains oil smoke concentration signal, and the oil smoke concentration signal is conveyed to the controller 104.
The controller 104 is connect with the inverter 103, and the controller 104 is used to be produced according to the concentration signal
Raw control signal, and the control signal is exported to the inverter 103.
The inverter 103 is connect with the motor of smoke exhaust ventilator, and the inverter 103 is used for will according to the control signal
The direct current is converted into the alternating current of different frequency, and by the exchange electricity output of the different frequency to the smoke exhaust ventilator
Motor drives the motor of the smoke exhaust ventilator with different rotational speeds；The motor includes left motor and right motor.
Specifically, in view of the factor of performance and price, the oil smoke concentration sensor that the utility model is selected passes for air-sensitive
Sensor, using gas sensor as " signal source ", since people's awareness of safety enhances, environmentally safe property and life comfort are wanted
Raising is asked, while being pushed by national security regulation, domestic gas sensor technology has obtained faster development, existing gas
Dependent sensor is also more mature.The sensor of selection is suitable for family, the pernicious gas detection device of environment.Be suitable for ammonia,
The detection of oxynitrides, ethyl alcohol, aromatic compounds, sulfide, smog, carbon dioxide etc..It can meet to kitchen oil completely
The induction of cigarette.
Optionally, the driving device further includes switching push button, the first relay and the second relay.
The switching push button is connect with the controller；The switching push button is used to generate switching according to the operation of user
Signal, and the switching signal is sent to the controller.
The controller is also connect with the control terminal of the control terminal of first relay and the second relay respectively, described
Controller is additionally operable to according to switching signal, generate switch-over control signal, and switching control control signal is conveyed to described
First relay and second relay.
First relay is set between the accumulator and the inverter, and first relay is used for basis
The switch-over control signal cuts off or is closed the connection line between the accumulator and the inverter.
Second relay is set between the alternating current and electricity driving device, and second relay is used for basis
The switch-over control signal, cut-out or the connection line being closed between alternating current and electricity driving device.
Optionally, as shown in Fig. 2, the electricity driving device include one gear control button 201, two keep off control button 202,
Three gear control buttons 203, left motor relay 204, right motor relay 205.
The one gear control button 201 is set between alternating current and the control terminal of the left motor relay 204, and described one
Gear control button 201 is for controlling being opened or closed for the left motor relay 204；
The input terminal of the left motor relay 204 is connect with the output end of second relay, the left motor after
The output end of electric appliance 204 is connect with the left motor, and the left motor relay 204 is for cutting off or connecting second relay
Connection line between device and the left motor.
The two gears control button 202 is set between alternating current and the control terminal of the right motor relay 205, and described two
Gear control button 202 is for controlling being opened or closed for the right motor relay；
The input terminal of the right motor relay 205 is connect with the output end of second relay, the right motor after
The output of electric appliance 205 is connect with the right motor, and the right motor relay 205 is for cutting off or connecting second relay
Connection line between the right motor.
The three gears control button 203 is the normally opened button of two-way, wherein being set to the alternating current and the left motor all the way
Between the control terminal of relay 204, for controlling being opened or closed for the left motor relay 204, another way is set to city
Between the control terminal of the electric and described right motor relay 205, for controlling being opened or closed for the right motor relay 205.
Specifically, the electricity driving device further includes red, yellow, blue three indicator lights, three indicator lights are kept off with one respectively
Control button 201, two keeps off control button 202 and three and keeps off the series connection of control button 203, for realizing the instruction of state.
Optionally, it is described one gear control button 201, it is described two gear control button 202 and it is described three gear control button 203 it
Between be provided with mutual interlocking gear, the mutual interlocking gear is for making a gear control button, two gear control buttons and three gear control buttons exist
The same time can only at most press there are one button.
Optionally, the inverter includes the first single-phase full bridge inverter circuit and the second single-phase full bridge inverter circuit.
The control terminal of first single-phase full bridge inverter circuit and second single-phase full bridge inverter circuit with the control
Device connection processed.
The input terminal of first single-phase full bridge inverter circuit is connect with the accumulator, the first single-phase full bridge circuit
Output end connect with the left motor of the smoke exhaust ventilator；First single-phase full bridge inverter circuit is used for according to the controller
Control the direct current that the accumulator exports is converted into the alternating current of different frequency, and by the alternating current of the different frequency
It exports to the left motor, drives the left motor with different rotational speeds.
The input terminal of second single-phase full bridge inverter circuit is connect with the accumulator, the second single-phase full bridge circuit
Output end connect with the right motor of the smoke exhaust ventilator, second single-phase full bridge inverter circuit be used for according to the controller
Control the direct current that the accumulator exports is converted into the alternating current of different frequency, and by the alternating current of the different frequency
It exports to the right motor, drives the right motor with different rotational speeds.
Optionally, the driving device further includes regulator circuit, and the input terminal of the regulator circuit is electrically connected with city, described
The output end of regulator circuit is connect with the power input of the controller and the oil smoke concentration sensor, the regulator circuit
DC voltage for the alternating current of city's electricity output to be converted into voltage stabilization is the controller and the oil smoke concentration
Sensor is powered.
Optionally, the regulator circuit includes transformer, rectification circuit and filter circuit of pressure-stabilizing.
The input terminal of the transformer is electrically connected with city, the input terminal of the output end of the inverter and the rectification circuit
Connection.
The output end of the rectification circuit is connect with the input terminal of the filter circuit of pressure-stabilizing.
The power input of the output end of the filter circuit of pressure-stabilizing and the controller and the oil smoke concentration sensor
Connection.
Optionally, the controller includes LM3914 microcontrollers.
Optionally, the driving device further includes charger, and the input terminal of the charger is electrically connected with city, the charging
The output end of device is connect with the accumulator, and the charger is used in the discharged or defective battery, and alternating current is converted into direct current
Electricity is to charge the battery.
According to specific embodiment provided by the utility model, utility model discloses following technique effect：
The utility model discloses smoke exhaust ventilator driving device, the driving device include solar panel, accumulator,
Controller, inverter and oil smoke concentration sensor；Electric energy is provided by solar panel, is detected by oil smoke concentration sensor
Oil smoke concentration signal, and the motor for adjusting by controller and inverter smoke exhaust ventilator in real time according to oil smoke concentration signal turns
Speed, by using solar energy and in real time adjustment rotating speed mode realize it is energy saving, and according to oil smoke concentration signal adjust rotating speed, nothing
Manual adjustment is needed, ensure that the health of diet.
The driving device of the utility model further includes the switching push button switched with the driving device of existing smoke exhaust ventilator,
One relay and the second relay realize the switching of the driving device and existing driving device of the utility model.
Specific case used herein is expounded the principles of the present invention and embodiment, above example
Explanation be merely used to help understand the method and its core concept of the utility model, described embodiment is only this practicality
Novel a part of the embodiment is based on the embodiments of the present invention, ordinary skill instead of all the embodiments
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
Claims (9)
1. a kind of smoke exhaust ventilator driving device, which is characterized in that the driving device includes solar panel, accumulator, control
Device, inverter and oil smoke concentration sensor processed；
The solar panel is connect with the accumulator, and the solar panel is for converting solar energy into direct current
Electricity, and the direct current is conveyed to the accumulator and is charged for the accumulator；
The accumulator is connect with the inverter, and the accumulator is used to provide direct current for the inverter；
The oil smoke concentration sensor is connect with the controller, and the oil smoke concentration sensor is used to detect the concentration of oil smoke,
Oil smoke concentration signal is obtained, and the oil smoke concentration signal is conveyed to the controller；
The controller is connect with the inverter, and the controller is used to generate control signal according to the concentration signal, and
The control signal is exported to the inverter；
The motor of the inverter and smoke exhaust ventilator connects, and the inverter is used for the direct current according to the control signal
It is converted into the alternating current of different frequency, and the exchange electricity output of the different frequency is given to the motor of the smoke exhaust ventilator, driving
The motor of the smoke exhaust ventilator is with different rotational speeds；The motor includes left motor and right motor.
2. a kind of smoke exhaust ventilator driving device according to claim 1, which is characterized in that the driving device further includes cutting
Change button, the first relay and the second relay；
The switching push button is connect with the controller；The switching push button is used to generate switching letter according to the operation of user
Number, and the switching signal is sent to the controller；
The controller is also connect with the control terminal of the control terminal of first relay and the second relay respectively, the control
Device is additionally operable to, according to switching signal, generate switch-over control signal, and switching control control signal is conveyed to described first
Relay and second relay；
First relay is set between the accumulator and the inverter, and first relay is used for according to
Switch-over control signal cuts off or is closed the connection line between the accumulator and the inverter；
Second relay is set between alternating current and electricity driving device, and second relay is used for according to the switching
Signal is controlled, the connection line between the alternating current and the electricity driving device is cut off or be closed.
3. a kind of smoke exhaust ventilator driving device according to claim 2, which is characterized in that the electricity driving device includes
One gear control button, two gear control buttons, three gear control buttons, left motor relay, right motor relay；
The one gear control button is set between the alternating current and the control terminal of the left motor relay, the gear control
Button is for controlling being opened or closed for the left motor relay；
The input terminal of the left motor relay is connect with the output end of second relay, the left motor relay it is defeated
Outlet is connect with the left motor, and the left motor relay is for cutting off or connecting second relay and the left motor
Between connection line；
The two gears control button is set between the alternating current and the control terminal of the right motor relay, the two gears control
Button is for controlling being opened or closed for the right motor relay；
The input terminal of the right motor relay is connect with the output end of second relay, the right motor relay it is defeated
Go out and connect with the right motor, the right motor relay for cut off or connect second relay and the right motor it
Between connection line；
The three gears control button is the normally opened button of two-way, wherein being set to the alternating current and the left motor relay all the way
Between control terminal, for controlling being opened or closed for the left motor relay, another way is set to the alternating current and the right side
Between the control terminal of motor relay, for controlling being opened or closed for the right motor relay.
4. a kind of smoke exhaust ventilator driving device according to claim 3, which is characterized in that the gear control button, institute
It states and is provided with mutual interlocking gear between two gear control buttons and the three gears control button, the mutual interlocking gear is for making a gear
Control button, the two gear control button and the three gear control button can only at most be pressed in the same time there are one button.
5. a kind of smoke exhaust ventilator driving device according to claim 1, which is characterized in that the inverter includes first single
Phase full bridge inverter and the second single-phase full bridge inverter circuit；
The control terminal of first single-phase full bridge inverter circuit and second single-phase full bridge inverter circuit with the controller
Connection；
The input terminal of first single-phase full bridge inverter circuit is connect with the accumulator, the first single-phase full bridge circuit it is defeated
Outlet is connect with the left motor of the smoke exhaust ventilator；First single-phase full bridge inverter circuit is used for the control according to the controller
The direct current that the accumulator exports is converted into the alternating current of different frequency by system, and by the exchange electricity output of the different frequency
To the left motor, drive the left motor with different rotational speeds；
The input terminal of second single-phase full bridge inverter circuit is connect with the accumulator, the second single-phase full bridge circuit it is defeated
Outlet is connect with the right motor of the smoke exhaust ventilator, and second single-phase full bridge inverter circuit is used for the control according to the controller
The direct current that the accumulator exports is converted into the alternating current of different frequency by system, and by the exchange electricity output of the different frequency
To the right motor, drive the right motor with different rotational speeds.
6. a kind of smoke exhaust ventilator driving device according to claim 1, which is characterized in that the driving device further includes steady
The input terminal of volt circuit, the regulator circuit is electrically connected with city, the output end of the regulator circuit and the controller and described
The power input of oil smoke concentration sensor connects, and the regulator circuit is used to the alternating current of city's electricity output being converted into electricity
Steady dc voltage is pressed, is that the controller and the oil smoke concentration sensor are powered.
7. a kind of smoke exhaust ventilator driving device according to claim 6, which is characterized in that the regulator circuit includes transformation
Device, rectification circuit and filter circuit of pressure-stabilizing；
The input terminal of the transformer is electrically connected with city, and the output end of the inverter and the input terminal of the rectification circuit connect
It connects；
The output end of the rectification circuit is connect with the input terminal of the filter circuit of pressure-stabilizing；
The output end of the filter circuit of pressure-stabilizing is connect with the power input of the controller and the oil smoke concentration sensor.
8. a kind of smoke exhaust ventilator driving device according to claim 1, which is characterized in that the controller includes LM3914
Microcontroller.
9. a kind of smoke exhaust ventilator driving device according to claim 1, which is characterized in that the driving device further includes filling
The input terminal of electric appliance, the charger is electrically connected with city, and the output end of the charger is connect with the accumulator, the charging
Device is used in the discharged or defective battery, and alternating current is converted into direct current to charge the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721816738.0U CN207990716U (en) | 2017-12-22 | 2017-12-22 | A kind of smoke exhaust ventilator driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721816738.0U CN207990716U (en) | 2017-12-22 | 2017-12-22 | A kind of smoke exhaust ventilator driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207990716U true CN207990716U (en) | 2018-10-19 |
Family
ID=63817904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721816738.0U Expired - Fee Related CN207990716U (en) | 2017-12-22 | 2017-12-22 | A kind of smoke exhaust ventilator driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207990716U (en) |
-
2017
- 2017-12-22 CN CN201721816738.0U patent/CN207990716U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105933193B (en) | Intelligent switch control system and method | |
| CN102777953A (en) | Intelligent range hood | |
| CN207990716U (en) | A kind of smoke exhaust ventilator driving device | |
| CN210954685U (en) | Car as a house intelligence control system | |
| CN201442524U (en) | Inversion charging type vehicle-mounted auxiliary power supply | |
| CN205714876U (en) | A kind of electric safety fan | |
| CN202651766U (en) | Single-phase motor protective device | |
| CN103825321A (en) | Portable multi-way charging and discharging power supply device | |
| CN201490963U (en) | Motor speed regulating control circuit | |
| CN206422593U (en) | Alternating Current Power Supply automatic switch-over circuit based on MSP430F149 | |
| CN202064996U (en) | Frequency conversion and speed regulation gas pumping and discharging device based on programmable logic controller (PLC) | |
| CN104716735B (en) | A kind of control circuit of simple type double-power supply switching device | |
| CN201044431Y (en) | Continuous speed regulation household electric fan of DC machine | |
| CN203158605U (en) | Intelligent garbage can | |
| CN205010011U (en) | Electric locomotive life power consumption guarantee device of fireless loopback | |
| CN203057052U (en) | Motor control system of low voltage direct current frequency conversion range hood | |
| CN206352849U (en) | A kind of intelligent range hood | |
| CN201393186Y (en) | Solar energy heating and refrigerating unit | |
| CN206759349U (en) | A kind of permagnetic synchronous motor control circuit | |
| CN202144711U (en) | Automatic transom window | |
| CN203166794U (en) | A wireless remote control inverter | |
| CN204231206U (en) | The frequency converter of low-voltage alternating-current speed governing | |
| CN205389290U (en) | Solar photovoltaic power generation automatic -control road lighting device | |
| CN213019806U (en) | Kitchen appliance, range hood equipment and cooking utensils equipment | |
| CN203140084U (en) | Shredder with two-grade speed adjustable motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 Termination date: 20191222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |