CN206789296U - De-noising control device and system - Google Patents
De-noising control device and system Download PDFInfo
- Publication number
- CN206789296U CN206789296U CN201720237795.7U CN201720237795U CN206789296U CN 206789296 U CN206789296 U CN 206789296U CN 201720237795 U CN201720237795 U CN 201720237795U CN 206789296 U CN206789296 U CN 206789296U
- Authority
- CN
- China
- Prior art keywords
- motor
- reflecting plate
- gas outlet
- receiver
- noising
- 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
- Separation Of Gases By Adsorption (AREA)
Abstract
This application provides de-noising control device and system, is related to process control technology field, wherein, the de-noising control device includes：Reflecting plate, motor, denoising Processing device, bindiny mechanism, peripheral control unit and receiver, wherein, motor, receiver is connected with denoising Processing device, motor is connected by bindiny mechanism with reflecting plate, peripheral control unit is connected with receiver, when receiver receives the control signal that peripheral control unit is sent, denoising Processing device is sent it to be handled, after the control signal received is converted into turn signal by denoising Processing device, turn signal is sent to motor, so that motor drives reflecting plate to be rotated after turn signal is received, by the rotation of reflecting plate the oxygen stream of gas outlet outflow and the oxygen intensity of flow of baffle reflection can be made to offset, so as to effectively reduce the noise of gas outlet.
Description
Technical field
It the utility model is related to process control field, more particularly to de-noising control device and system.
Background technology
Oxygen is thin in altitude environment, the decrease in oxygen partial pressure in air, so causes oxygen that human body respiration enters also phase
It should reduce, so as to cause body anoxic, trigger altitude sickness, for example, be short of breath, have a headache, be dizzy, vomitting etc..Also, plateau
Extreme anaerobic environment can trigger a variety of high altitude diseases, for example, expiratory dyspnea, diarrhoea, obnubilation etc..
In order to improve People's livelihood, start progressively to take pressure-swing absorption apparatus in recent years to improve the partial pressure of oxygen of anaerobic environment, with
Strive for making the Rich Oxygen Amount in environment to meet human body requirements.Pressure-variable adsorption (Pressure Swing Adsorption) abbreviation PSA,
It is a kind of new gas absorption isolation technics, it can typically work in room temperature and under not high pressure, and equipment is simple, is easy to grasp
Make, extra heating is not had to when bed regenerates, also, product purity is high, energy saving economy.Therefore, pressure swing adsorption is by each
The concern of state's industrial quarters, and be widely applied.
But when oxygen being sent into environment (for example, office, bedroom etc.) of closing by pressure-swing absorption apparatus, becoming
Press and obvious noise, especially gas outlet are had at the gas outlet of adsorbent equipment in the small space progress that pipeline is small, air pressure is big
When oxygen-enriched, noise is very notable, therefore, when the small space such as general family is oxygen-enriched, it is necessary to considers to reduce asking for gas outlet noise
Topic.Following two methods are typically taken in present engineering to carry out noise reduction process, and first method is to cover to add one at gas outlet
If layer sponge, in this approach if used sponge is too thin, does not then have an effect of noise reduction, and sponge is too thick then not
Beneficial to the evacuation of oxygen.Second method is to reduce the air pressure of pipeline, although this method can effectively reduce noise, due to pipe
Road air pressure is low, and oxygen-enriched effect will be greatly reduced.To sum up, existing method can not effectively reduce the noise of gas outlet at present.
Utility model content
In view of this, the purpose of the utility model embodiment is the provision of de-noising control device and system, passes through reflection
The setting of plate and motor etc., efficiently solve the noise problem of gas outlet.
In a first aspect, the utility model embodiment provides de-noising control device, including：Reflecting plate, motor, denoising Processing
Device, bindiny mechanism, peripheral control unit and receiver；
Motor, receiver are connected with denoising Processing device；
Motor is connected by bindiny mechanism with reflecting plate；
Peripheral control unit is connected with receiver；
Receiver, the control signal for the peripheral control unit received to be sent are sent to denoising Processing device；
Denoising Processing device, for the control signal received to be converted into turn signal, and turn signal is sent to electricity
Machine；
Motor, for driving reflecting plate to be rotated after turn signal is received.
With reference in a first aspect, the utility model embodiment provides the first possible embodiment of first aspect, its
In, bindiny mechanism includes first gear and second gear；
First gear is connected with motor；
Second gear is connected with reflecting plate；
Second gear, for being engaged with first gear, and, rotated under the drive of first gear.
With reference in a first aspect, the utility model embodiment provides second of possible embodiment of first aspect, its
In, the quantity of reflecting plate is arranged to multiple, and, multiple reflecting plates pass through bindiny mechanism and motor connection.
With reference in a first aspect, the utility model embodiment provides the third possible embodiment of first aspect, its
In, peripheral control unit includes the one or more in remote control, computer or wireless terminal.
With reference in a first aspect, the utility model embodiment provides the 4th kind of possible embodiment of first aspect, its
In, receiver is infrared remote receiver.
With reference in a first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect, its
In, motor is stepper motor.
Second aspect, the utility model embodiment provide noise silencing control system, including：Pressure-swing absorption apparatus and above-mentioned disappear
Make an uproar control device；
De-noising control device is set at the gas outlet of pressure-swing absorption apparatus；
De-noising control device, for being used cooperatively with pressure-swing absorption apparatus, make the oxygen stream and baffle reflection of gas outlet
Oxygen stream converge to form vortex.
With reference to second aspect, the utility model embodiment provides the first possible embodiment of second aspect, its
In, gas outlet is shaped to tubaeform.
With reference to second aspect, the utility model embodiment provides second of possible embodiment of second aspect, its
In, reflecting plate is connected to the lower section of gas outlet.
With reference to second aspect, the utility model embodiment provides the third possible embodiment of second aspect, its
In, the angle between plane where reflecting plate and gas outlet is 45 degree.
The de-noising control device and system that the utility model embodiment provides, wherein, the de-noising control device includes：Reflection
Plate, motor, denoising Processing device, bindiny mechanism, peripheral control unit and receiver, in the apparatus, motor, receiver are and de-noising
Processor is connected, and peripheral control unit is connected with receiver, also, motor is connected by bindiny mechanism with reflecting plate, during work, when
After receiver receives the control signal that peripheral control unit is sent, the control signal is sent to denoising Processing device, denoising Processing
The control signal is converted into turn signal by device, and turn signal is sent into motor, and so, motor can rotate letter receiving
Drive reflecting plate to be rotated accordingly after number, i.e., the opening angle of reflecting plate is realized by motor, effectively control gas outlet
" oxygen blast " direction, and then make the oxygen stream of gas outlet and the oxygen stream of baffle reflection converge to form vortex, so as to effectively reduce
" whistle " noise.
To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Accompanying drawing appended by cooperation, is described in detail below.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 shows the structure connection figure for the de-noising control device that the utility model embodiment is provided；
Fig. 2 shows the module connection figure for the de-noising control device that the utility model embodiment is provided；
Fig. 3 shows the structure chart for the de-noising control device that the utility model embodiment is provided；
Fig. 4 shows the structure connection figure for the noise silencing control system that the utility model embodiment is provided.
Icon：1- peripheral control units；2- receivers；3- denoising Processing devices；4- motors；5- bindiny mechanisms；6- reflecting plates；7-
De-noising control device；8- pressure-swing absorption apparatus；9- first gears；10- second gears.
Embodiment
Below in conjunction with accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole realities
Apply example.The component of the utility model embodiment being generally described and illustrated herein in the accompanying drawings can be come with a variety of configurations
Arrangement and design.Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit below
Claimed the scope of the utility model, but it is merely representative of selected embodiment of the present utility model.Based on the utility model
Embodiment, the every other embodiment that those skilled in the art are obtained on the premise of creative work is not made, all
Belong to the scope of the utility model protection.
At present, when oxygen being sent into the environment of the closings such as office, bedroom by pressure-swing absorption apparatus 8 in anoxic area,
Oxygen stream can be with obvious noise, particularly when gas outlet is arranged on pipe when being flowed out at the gas outlet of pressure-swing absorption apparatus 8
During the small space that road is small, air pressure is big, noise is very notable, and while carrying out oxygen-enriched, people are often difficult to endure.Therefore, exist
During actual use, it is necessary to consider to reduce the noise of gas outlet.Following two methods would generally be taken in existing implementation process, the
A kind of method is to add one layer of sponge in gas outlet overlying, in this approach, if used sponge is too thin, does not have drop
The effect of low noise, and then it is unfavorable for the evacuation of oxygen if sponge is too thick.Second method is to reduce the air pressure of pipeline, this
Although method can effectively reduce noise, simultaneously as pipeline air pressure will be low, oxygen-enriched effect will be greatly reduced.To sum up, it is existing at present
Some methods can not effectively reduce the noise of gas outlet.
Based on this, the utility model embodiment provides de-noising control device 7 and system, is retouched below by embodiment
State.
Embodiment 1
Referring to Fig. 1, Fig. 2 and Fig. 3, the de-noising control device 7 that the present embodiment proposes includes：Reflecting plate 6, motor 4, de-noising
Processor 3, bindiny mechanism 5, peripheral control unit 1 and receiver 2, herein, motor 4, receiver 2 with the phase of denoising Processing device 3
Even, peripheral control unit 1 is connected with receiver 2, in addition, motor 4 is also connected by bindiny mechanism 5 with reflecting plate 6.In above-mentioned connection
On the basis of, receiver 2 is used for receiving the control signal that peripheral control unit 1 is sent, and the control signal received is sent to
Denoising Processing device 3, denoising Processing device 3 are microcontroller, specifically receive control signal, de-noising by I/O mouths by the microcontroller
The control signal received is converted into turn signal by processor 3, is specially the pulse width modulation letter that the microcontroller is sent
Number, for example, PWM, and turn signal is sent to motor 4, motor 4 drives 6 turns of reflecting plate after turn signal is received
It is dynamic.In this programme, the model of microcontroller is not required specifically, certainly, microcontroller here also can use middle scale
Integrated circuit is replaced, but circuit is excessively complicated, also can use SPOC technologies to realize, but cost performance is low.
Bindiny mechanism 5 includes first gear 9 and second gear 10, in the scheme of the present embodiment, first gear 9 be used for
Motor 4 is connected, i.e., first gear 9 is connected on the output shaft of motor 4, and the output shaft of general motor 4 all carry keyway, gear and
The output shaft of motor 4 uses interference fits.
In addition, gear-driven efficiency is high, transmission is accurate, power bracket is big, thus, it is widely used in industrial products.Tooth
Wheel is to transmit the machine components of moment of torsion by the engagement of tooth, gear by with other dentation machine components (such as another tooth
Wheel, rack, worm screw) transmission, so as to change the rotating speed of mechanical structure, moment of torsion, the direction of motion and forms of motion etc..It is common, gear
The gear teeth mutually clasp, so that gear drives another pinion rotation to transmit power., can also when two gears are attached
Using chain, crawler belt, belt power is transmitted to drive the gear on both sides.In the present embodiment, it is dynamic in order to which motor 4 is rotated
Power is driven, and second gear 10 engages with first gear 9, also, second gear 10 is turned under the drive of first gear 9
It is dynamic.Each bossing for being used to engage typically radially arranges i.e. on gear, and mutual with the gear teeth on coupling gear
Contact, so that meshed gears continuous running.Compared with other type of belt drive, second gear 10 engages with first gear 9 to be made
Reflecting plate 6 rotates more stable.
Second gear 10 is connected with reflecting plate 6, in this programme, the setting of reflecting plate 6 primarily to block gas outlet,
It is specifically to be reflected the oxygen stream of gas outlet outflow, is made with reducing or offsetting when oxygen stream quickly flows out gas outlet
Into noise.Therefore, the setting of the needs such as the position of reflecting plate 6, size, shape, material and gas outlet is adapted.Generally,
Two gears 10 are fixedly connected with (for example, welding etc.) on a side of the reflecting plate 6 close to gas outlet.For example, gas outlet is arranged on
One also, oxygen stream is outwards sprayed from the gas outlet with the direction perpendicular to the plane in the plane on ground, this
When, rotary shaft one end of reflecting plate 6 may be provided at the lower section of the gas outlet, enable reflecting plate 6 by the drive of second gear 10
Enough oxygen streams to outflow form contrajet.
In order to form the reflection of multiple angles to the oxygen stream of gas outlet, or, multiple gas outlets of setting are carried out instead
Penetrate, the quantity of reflecting plate 6 may be configured as it is multiple, for example, the staggered surrounding in gas outlet of multiple reflecting plates 6, or, it is multiple
Reflecting plate 6, which is laminated, is arranged in the lower section of gas outlet, and here, the installation number and installation site of reflecting plate 6 are needed according to using ring
Flexibly arranged in border.Also, multiple reflecting plates 6 are connected by bindiny mechanism 5 with motor 4.
In this programme, peripheral control unit 1 includes the one or more in remote control, computer or wireless terminal.
Remote control is a kind of common wireless launcher, and it passes through infrared two pole by the way that key information is encoded
Lightwave signal after pipe transmitting is encoded, the lightwave signal turn the lightwave signal received by corresponding infrared receiver 2
Become electric signal.The electric signal can be decoded by subsequent processor, so demodulate corresponding instruction to reach control
The equipment such as set top box, controller complete required operation requirement.6 jiaos of reflecting plate is finally realized by remote controller key "+", "-"
The adjustment of degree.
In some need the environment of centralized operation, computer can be arranged to peripheral control unit 1, on the one hand, be easy to pass through
Computer sends signal to multiple receivers 2；On the other hand, operating personnel can check the state of each device by computer, for example,
Can be by the camera installed on computer, by the interface real time inspection expelling plate state in which for switching computer.
For simple operation, in this programme, peripheral control unit 1 can also be arranged to wireless terminal, that is, pass through mobile phone etc.
The transmission of equipment and wireless network sends related signal to receiver 2.
In addition, preferred receiver 2 is infrared remote receiver 2 in this programme.Infrared remote receiver 2 is that one kind can receive infrared letter
Number, and the infrared signal can be converted into the electronic device that Transistor-Transistor Logic level signal is exported, the volume of infrared remote receiver 2 and general
Logical plastic packaging triode is similar, is easy to be laid out on circuit boards, also, infrared remote receiver 2 can long range reception signal, resist
Interference performance is strong, and can work at lower voltages.External only three pins of common infrared remote receiver 2, i.e. Vcc, Out,
GND, it is therefore, more convenient with the connection of the controller such as single-chip microcomputer.Compared with other receivers 2, the small volume of infrared remote receiver 2,
Pin is few, reception signal ability is strong, therefore, in the present embodiment, preferentially selects reception of the infrared remote receiver 2 as control signal
Device 2, i.e., after peripheral control unit 1 sends control signal, infrared remote receiver 2 receives the control signal, and the control signal is sent out
Give the processing that denoising Processing device 3 carries out next step.
In this programme, motor 4 is preferably stepper motor 4.Stepper motor 4 is a kind of induction machine 4, by by electric pulse
Signal is changed into angular displacement or displacement of the lines is carried out controlled motor 4 and rotated.Direct current is become time sharing power supply by it using electronic circuit, by
Multiphase SECO electric current enables the normal work of stepper motor 4.Stepper motor 4 is mainly to be produced by the change of air-gap permeance
Raw electromagnetic torque, generally, the rotor of motor 4 is permanent magnet, and when electric current flows through stator winding, stator winding produces a vector
Magnetic field, magnetic field meeting rotor driven are rotated, and make a pair of magnetic field direction of rotor consistent with the magnetic direction of stator.Work as stator
Vector Magnetic Field rotate to an angle, rotor is also with the magnetic field rotating certain angle.When the direction for needing change stepper motor 4
When, by changing the order of winding energization, motor 4 will invert.
In the case of the external load of stepper motor 4 is non-overloading, the rotating speed of motor 4, the position stopped being solely dependent upon pulse
The frequency of signal, without being influenceed by load change, in this case, stepper motor 4 is easy to control, and stable.This
Sample, during carrying out practically, after stepper motor 4 receives a pulse signal, it will turn according to direction set in advance
A fixed angle is moved, the angle of the fixation is referred to as " step angle ".In the scheme of the present embodiment, denoising Processing device 3 passes through
Order that winding set in advance is powered controls step direction, so as to reach the purpose of control direction；Meanwhile arteries and veins can be passed through
The displacement that number i.e. stepping step number carrys out the rotation of controlled motor 4 is rushed, so as to reach the purpose being accurately positioned.
In summary, the de-noising control device 7 that the present embodiment provides includes：Reflecting plate 6, motor 4, denoising Processing device 3, company
Connection mechanism 5, peripheral control unit 1 and receiver 2, in the scheme of the present embodiment, motor 4 and receiver 2 all with denoising Processing device 3
Electrical connection, also, motor 4 is also connected by bindiny mechanism 5 with reflecting plate 6.When device is operated, receiver 2 is mainly used
To receive, control signal that peripheral control unit 1 is sent, so, when receiver 2 receives the control letter that peripheral control unit 1 sends
After number, the control signal is sent to denoising Processing device 3, the control signal is converted into turn signal by denoising Processing device 3, and will
Turn signal is sent to motor 4, and motor 4 drives reflecting plate 6 to be rotated accordingly after turn signal is received, i.e., by motor
4 realize the specific opening angle of reflecting plate 6, so as to effectively control " oxygen blast " direction of gas outlet, make the oxygen stream of gas outlet
The oxygen stream reflected with reflecting plate 6 is converged, and so as to effectively reduce " whistle " noise, is not more than the noise of whole device
40dB。
Embodiment 2
Referring to Fig. 4, present embodiments providing noise silencing control system includes：Pressure-swing absorption apparatus 8 and above-mentioned de-noising control dress
7 are put, de-noising control device 7, de-noising control device 7, for being filled with pressure-variable adsorption are set at the gas outlet of pressure-swing absorption apparatus 8
Put 8 to be used cooperatively, make the oxygen stream that the oxygen stream of gas outlet reflects with reflecting plate 6 converge to form vortex.
Here, gas outlet is shaped to tubaeform.Because oxygen stream is to be ejected by gas pressure from gas outlet
The air-flow come, the shape of gas outlet set whether to form noise to the oxygen stream most important.When gas outlet be shaped as it is common
Circular hole when, larger noise can be produced when oxygen stream flows through gas outlet.In the present embodiment, gas outlet is shaped to
Tubaeform, tubaeform is the deformable body of triangle, appears in top mostly, is form expected to fall.Tubaeform is the deformation of Head and Shoulders Top,
Whole form is started with narrow fluctuation, then expands in both up and down, upper and lower spikes/low- points are connected respectively, from
And obtain the triangle of the reflection of light in a mirror.
Preferably, gas outlet is shaped as flat-horn shaped, i.e., by it is above-mentioned it is tubaeform be divided into two parts symmetrical above and below, it is middle
For symmetry axis, top half is compressed in vertical direction using symmetry axis as bottom, for example, with 1:0.5 compression ratio pair
Top half is extruded；Similarly, also the latter half is compressed in vertical direction using symmetry axis as bottom accordingly, pressed
Contracting ratio is identical with the compression factor of top half, so as to obtain flat-horn shaped.In specific application, the specific shape of flat-horn shaped
Shape can flexibly be set according to use environment.
Reflecting plate 6 is connected to the lower section of gas outlet, also, the acquiescence angle between the plane where reflecting plate 6 and gas outlet
Spend for 45 degree, i.e., be previously stored with the step number to be reached of controlled motor 4 in denoising Processing device 3, after system electrification, motor 4
The step number being adapted with default angle is rotated under the control of denoising Processing device 3.Or reflecting plate 6 is tilted and is connected to outlet
The lower section of mouth, the number of degrees at the inclination angle are consistent with the number of degrees of default angle.Herein, it is necessary to which explanation, default angle are main
Got by experience, for example, with reference to oxygen-enriched space environment, the shape of gas outlet, installation site of pressure-swing absorption apparatus 8 etc., and
Got by the decibel value practice of measurement noise.
In summary, the noise silencing control system that the present embodiment provides includes：Pressure-swing absorption apparatus 8 and above-mentioned de-noising control dress
7 are put, de-noising control device 7 is set at the gas outlet of pressure-swing absorption apparatus 8, gas outlet is generally shaped to loudspeaker
Shape, so, de-noising control device 7 can be used cooperatively with pressure-swing absorption apparatus 8, and the oxygen stream and reflecting plate 6 for making gas outlet reflect
Oxygen stream converge to form vortex, so as to effectively reduce the level of noise at gas outlet.
Finally it should be noted that：Embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical scheme of utility model, rather than its limitations, the scope of protection of the utility model is not limited thereto, although with reference to foregoing
The utility model is described in detail embodiment, it will be understood by those within the art that：It is any to be familiar with this skill
For the technical staff in art field in the technical scope that the utility model discloses, it still can be to the skill described in previous embodiment
Art scheme is modified or can readily occurred in change, or carries out equivalent substitution to which part technical characteristic；And these modifications,
Change is replaced, and the essence of appropriate technical solution is departed from the spirit and model of the utility model embodiment technical scheme
Enclose, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model described should be wanted with right
The protection domain asked is defined.
Claims (10)
1. de-noising control device, it is characterised in that including：Reflecting plate, motor, denoising Processing device, bindiny mechanism, peripheral control unit
And receiver；
The motor, the receiver are connected with the denoising Processing device；
The motor is connected by the bindiny mechanism with the reflecting plate；
The peripheral control unit is connected with the receiver；
The receiver, the control signal for the peripheral control unit received to be sent are sent to the denoising Processing
Device；
The denoising Processing device, for the control signal received to be converted into turn signal, and by the turn signal
It is sent to the motor；
The motor, for driving the reflecting plate to be rotated after the turn signal is received.
2. de-noising control device according to claim 1, it is characterised in that the bindiny mechanism includes first gear and the
Two gears；
The first gear is connected with the motor；
The second gear is connected with the reflecting plate；
The second gear, for being engaged with the first gear, and, rotated under the drive of the first gear.
3. de-noising control device according to claim 1, it is characterised in that the quantity of the reflecting plate is arranged to multiple,
And multiple reflecting plates pass through the bindiny mechanism and the motor connection.
4. de-noising control device according to claim 1, it is characterised in that the peripheral control unit includes remote control, electricity
One or more in brain or wireless terminal.
5. de-noising control device according to claim 1, it is characterised in that the receiver is infrared remote receiver.
6. de-noising control device according to claim 1, it is characterised in that the motor is stepper motor.
7. noise silencing control system, it is characterised in that including：Pressure-swing absorption apparatus and disappearing as described in claim any one of 1-6
Make an uproar control device；
The de-noising control device is set at the gas outlet of the pressure-swing absorption apparatus；
The de-noising control device, for being used cooperatively with the pressure-swing absorption apparatus, make oxygen stream and the institute of the gas outlet
The oxygen stream for stating baffle reflection is converged to form vortex.
8. noise silencing control system according to claim 7, it is characterised in that the gas outlet is shaped to loudspeaker
Shape.
9. noise silencing control system according to claim 7, it is characterised in that the reflecting plate is connected to the gas outlet
Lower section.
10. noise silencing control system according to claim 7, it is characterised in that the reflecting plate and gas outlet place
Plane between angle be 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720237795.7U CN206789296U (en) | 2017-03-13 | 2017-03-13 | De-noising control device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720237795.7U CN206789296U (en) | 2017-03-13 | 2017-03-13 | De-noising control device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206789296U true CN206789296U (en) | 2017-12-22 |
Family
ID=60704030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720237795.7U Expired - Fee Related CN206789296U (en) | 2017-03-13 | 2017-03-13 | De-noising control device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206789296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652993A (en) * | 2017-03-13 | 2017-05-10 | 青海民族大学 | De-noising control device and system |
-
2017
- 2017-03-13 CN CN201720237795.7U patent/CN206789296U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652993A (en) * | 2017-03-13 | 2017-05-10 | 青海民族大学 | De-noising control device and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104077908B (en) | Remote control switch | |
| CN206789296U (en) | De-noising control device and system | |
| CN204546556U (en) | The parallel steering wheel of double freedom based on differential gear train | |
| CN103369422B (en) | A kind of earphone and a kind of earphone control assembly | |
| CN206595008U (en) | A kind of computerized information engineering device for displaying information | |
| CN106652993A (en) | De-noising control device and system | |
| CN207910226U (en) | A kind of wire twisting machine of the automatic clamp of energy | |
| CN106384837A (en) | Battery cell winding driving device and battery cell winding machine | |
| CN107313618A (en) | A kind of adjustable listening room of acoustic efficiency | |
| CN110273849A (en) | A kind of intelligent fan | |
| CN206713026U (en) | A kind of earphone sounding structure | |
| CN205541106U (en) | Goods -delivery device for goods channels of automatic vending machines | |
| CN201097132Y (en) | Three-pin tower clock machine core | |
| CN208263857U (en) | One kind waving arm device | |
| CN109737079A (en) | Low noise intelligent pipeline blower based on Internet of Things | |
| CN103982113B (en) | With the air outlet mechanism of slip lid door | |
| CN208767146U (en) | A kind of encapsulated equipment of Electronic Components Manufacturing | |
| CN201055636Y (en) | Multimedia MP3 embedded running device | |
| CN205521478U (en) | Novel freely movable joint of robot | |
| CN206271821U (en) | Electric core winding drive device and electricity core winding machine | |
| CN206619308U (en) | A kind of analog demenstration equipment suitable for historical personage | |
| CN206767278U (en) | A kind of New insulated adhesive plaster system designing of circular winding equipment | |
| CN219485701U (en) | Motor driving device for joint assembly and cooperative robot | |
| CN219871680U (en) | Soft water valve motor detection device | |
| CN207658552U (en) | A kind of conveyer belt mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 |