CN205897424U - Wind induction system and new trend system - Google Patents
Wind induction system and new trend system Download PDFInfo
- Publication number
- CN205897424U CN205897424U CN201620462110.4U CN201620462110U CN205897424U CN 205897424 U CN205897424 U CN 205897424U CN 201620462110 U CN201620462110 U CN 201620462110U CN 205897424 U CN205897424 U CN 205897424U
- Authority
- CN
- China
- Prior art keywords
- circuit
- outfan
- voltage
- ptc
- control circuit
- 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
Landscapes
- Ventilation (AREA)
Abstract
The utility model provides a wind induction system and new trend system aims at the wind that provides a low cost and responds to the scheme. Including PTC temperature sensing circuit and control circuit, PTC thermistor in the PTC temperature sensing circuit sets up in the wind gap position in wind channel, the voltage output end as control circuit's input is drawn to the link of PTC thermistor and first resistance, control circuit is according to the voltage signal output control air purification device's of input control signal. Have new trend continuous flow measured time in the wind channel, the PTC thermistor resistance reduces for a voltage output terminal voltage rises, and control circuit gives back level circuit output control signal based on this, starts air purification device work, comparing and giving air purifier in starting signal transmission through the cable with the fan, whether the cable is saved in the present case, have the new trend to get into because PTC thermistor's partial pressure changes to determine to the low cost has realized new trend linked system.
Description
Technical field
This utility model is related to technical field of air purification and in particular to a kind of wind induction apparatus and VMC (Ventilation Mechanical Control System).
Background technology
VMC (Ventilation Mechanical Control System), send fresh air according in airtight indoor side special equipment to interior, then from opposite side by special
Equipment, to outdoor discharge, can form " fresh air field of flow " indoors, thus meeting the needs of indoor fresh air ventilating.
But, outdoor air is affected by weather such as hazes, if being sent directly into interior without the measure such as purifying, filtering,
Even if forming fresh air field of flow, do not have the substantial role of indoor fresh air ventilating, it is thus typically necessary to send into fresh air more yet
Before interior, it is re-fed into interior using air cleaner purifying fresh air.
In prior art, generally in VMC (Ventilation Mechanical Control System), air cleaner, the one end in air channel are installed in the indoor one end in air channel
Blower fan is installed to indoor conveying fresh air, blower fan starting device and air cleaner are realized wired connection by cable, worked as startup
While blower fan, enabling signal can be passed through cable transmission to air cleaner, enabling signal starts air cleaner work
Make, after the outdoor air of blower fan suction is purified, input is indoor.It can be seen that, this coordinated signals mode needs built-in line in air channel
Cable is sent to air cleaner realizing fan initiating signal, and the cost of cable is high, and this makes VMC (Ventilation Mechanical Control System) exist to make
The technical problem of valency high cost.
Content of the invention
The embodiment of the present application is passed through to provide a kind of wind induction apparatus and VMC (Ventilation Mechanical Control System), solves in prior art using cable even
The technical problem of the fresh air linked system high cost connecing.
For solving above-mentioned technical problem, the embodiment of the present application employs the following technical solutions and is achieved:
A kind of wind induction apparatus are proposed, including ptc temperature-sensitive circuit and control circuit；Described ptc temperature-sensitive circuit includes first
Power supply, ptc critesistor and first resistor；Wherein, described ptc critesistor is arranged at the tuyere position in air channel, one
End connects described first power supply, and the other end connects described first resistor, the other end ground connection of described first resistor；With described
The connection end of ptc critesistor and described first resistor leads to first voltage outfan, and described first voltage outfan connects
The input of described control circuit；Described control circuit, the voltage signal output control signal based on its input.
A kind of VMC (Ventilation Mechanical Control System) is proposed, the air cleaning of the blower fan including air channel, being installed on air channel one end and the air channel other end
Device, and it is arranged at the wind induction apparatus of the tuyere position in described air channel；Described wind induction apparatus include ptc temperature-sensitive circuit and
Control circuit；Described ptc temperature-sensitive circuit includes the first power supply, ptc critesistor and first resistor；Wherein, described ptc heat
Quick resistance is arranged at the tuyere position in air channel, and its one end connects described first power supply, and the other end connects described first resistor,
The other end ground connection of described first resistor；Lead to the first electricity with the connection end of described ptc critesistor and described first resistor
Pressure outfan, described first voltage outfan connects the input of described control circuit；Described control circuit, based on its input
Voltage signal output control signal；The outfan of described control circuit connects the control signal of described air cleaner,
The control signal realizing described control circuit output controls described air cleaner to start or stop work.
Compared with prior art, the technical scheme that the embodiment of the present application provides, the technique effect having or advantage are: this Shen
In the wind induction apparatus that please propose, it is provided with ptc critesistor at the air port in air channel, on the characteristic of ptc critesistor is
Electric work can make its temperature rise, thus cause resistance increase, then with first resistor partial pressure after, in first voltage outfan point
Pressure can reduce, and when fresh air passes through air channel, be in the ptc critesistor at air port and take away heat during wind flow and warm
Degree reduces, thus causing resistance to reduce, then the partial pressure of first voltage outfan can increase rapidly, quick to late-class circuit offer one
The higher output control signal of sensitivity；Then it is based on this characteristic, can be after electric steady operation on wind induction apparatus, according to detecting
First voltage outfan partial pressure change, to judge the resistance of ptc critesistor, thus judging whether air port has fresh air to enter
Enter, for example, set a voltage threshold, according to the change in voltage of first voltage outfan, when more than voltage threshold, explanation
Ptc thermistor temp is declined and is caused due to new wind flow, can be purified with output control air cleaner unlatching work
The control signal of the fresh air that air channel enters, if being less than voltage threshold, illustrates ptc thermistor temp in reasonable fluctuation range
Interior, do not have fresh air flowing to take away heat, then the control signal that can close with output control air cleaner.
Above-mentioned, the VMC (Ventilation Mechanical Control System) of the wind induction apparatus being proposed using the application, wind induction apparatus are placed in VMC (Ventilation Mechanical Control System)
Air channel tuyere position, adjacent with air cleaner it might even be possible to integrated with air cleaner, by ptc critesistor
Partial pressure changes to judge whether air port has fresh air to enter, and is transferred to fan initiating signal using cable compared in prior art
Air cleaner, to start air cleaner work, based on the fresh air linked system of this case, connects wind without using cable
Whether machine starting device and air cleaner, have fresh air to enter to be realized with a low cost in detection air channel, solve prior art
The technical problem of the fresh air linked system high cost that middle use cable connects.
And, because the change in resistance of ptc critesistor can make the partial pressure of first voltage outfan increase rapidly, to rear class electricity
Road provides a higher output control signal of sensitivity so that this case is opened compared to cable transmission blower fan in prior art
The mode of dynamic signal possesses higher detection sensitivity.
Brief description
The structure composed figure of the wind induction apparatus that Fig. 1 proposes for the application；
The ptc temperature-sensitive circuit that Fig. 2 proposes for the application exports the curve chart of partial pressure vp；
The structure composed figure of the wind induction apparatus that Fig. 3 proposes for the application；
The VMC (Ventilation Mechanical Control System) Organization Chart that Fig. 4 the application proposes.
Specific embodiment
The embodiment of the present application is passed through to provide a kind of wind induction apparatus and VMC (Ventilation Mechanical Control System), solves in prior art using cable even
The technical problem of the fresh air linked system high cost connecing.
In order to be better understood from technique scheme, below in conjunction with Figure of description and specific embodiment, right
Technique scheme is described in detail.
As depicted in figs. 1 and 2, the wind induction apparatus that the application proposes, including ptc temperature-sensitive circuit and control circuit； ptc
Temperature-sensitive circuit includes first power supply vcc, ptc critesistor rp and first resistor r1；Ptc temperature-sensitive circuit and control circuit are all
Planning is in a control board；This control board, especially ptc critesistor rp will be arranged at the air port position in air channel
Put, its one end connects the first power supply vcc, the other end connects first resistor r1, the other end ground connection of first resistor r1；With
The connection end of ptc critesistor rp and first resistor r1 leads to first voltage outfan vp, and first voltage outfan vp connects
The input of control circuit.
The characteristic of ptc critesistor is: works on power and its temperature can be made to increase, temperature rising can cause resistance to increase,
Then after ptc critesistor and first resistor partial pressure, partial pressure vp in first voltage outfan can reduce, and passes through air channel in fresh air
When, it is in that heat taken away during wind flow by the ptc critesistor at air port and temperature reduces, thus causing resistance to reduce,
Then partial pressure vp of first voltage outfan can increase, and this case is based on this characteristic, and the partial pressure using ptc critesistor judges
Fresh air whether is had to enter in air channel.
The voltage signal output control signal based on input for the outfan of control circuit, the control signal of output is used for controlling
The startup of air cleaner or closing in VMC (Ventilation Mechanical Control System) processed；For example, control circuit can be the driving electricity based on audion
Road, first voltage outfan vp can be directly connected to transistor base, and using dynatron performance, colelctor electrode connects late-class circuit, rear class
The exportable high and low two kinds of different control signals of circuit, for controlling being turned on and off of air cleaner in VMC (Ventilation Mechanical Control System)；
Control circuit can also be the drive circuit based on phase inverter, and inverter output connects late-class circuit, the exportable height of late-class circuit,
Low two kinds of different control signals are controlling being turned on and off of air cleaner in VMC (Ventilation Mechanical Control System)；Control circuit can also be
The integrated chip control module such as mcu or single-chip microcomputer and its peripheral circuit, the voltage of the output according to first voltage outfan vp, defeated
Go out control signal to control being turned on and off of air cleaner in VMC (Ventilation Mechanical Control System).Even, control circuit can also be integrated in
In air cleaner, together it is placed in air channel tuyere position with air cleaner.
With control circuit as single-chip microcomputer or as a example muc, one can be set after electric steady operation on wind induction apparatus
Voltage threshold, according to the change in voltage of first voltage outfan, when more than voltage threshold, illustrates under ptc thermistor temp
Fall is caused due to new wind flow, then single-chip microcomputer or mcu export the first control signal, and this first control signal can be used as control
Air cleaner unlatching work processed purifies the enabling signal of the fresh air that air channel enters, if being less than voltage threshold, ptc heat is described
Quick resistance temperature, in reasonable fluctuation range, does not have fresh air flowing to take away heat, then single-chip microcomputer or mcu output second controls letter
Number, control air cleaner to close.
And the VMC (Ventilation Mechanical Control System) of the wind induction apparatus being proposed based on the application, wind induction apparatus can be placed in VMC (Ventilation Mechanical Control System)
Air channel tuyere position, adjacent with air cleaner it might even be possible to integrated with air cleaner, by ptc critesistor
Partial pressure changes to judge whether air port has fresh air to enter, and is transferred to fan initiating signal using cable compared in prior art
Air cleaner, to start air cleaner work, based on the fresh air linked system of this case, connects wind without using cable
Machine starting device and air cleaner, form simple circuit with ptc critesistor and first resistor, according to ptc temperature-sensitive electricity
The change in resistance of resistance is judging whether there is new wind flow in air channel, thus realizing air cleaner is turned on and off, with
It is realized with a low cost the technique effect whether having fresh air to enter in detection air channel, solve new using cable connection in prior art
The technical problem of wind linked system high cost.
As shown in Fig. 2 being the voltage output curve chart of partial pressure vp, after electricity on ptc temperature-sensitive circuit, in the meeting rapidly of partial pressure vp
Rise, after upper electricity, arrive t1 this period, centre has the situation that partial pressure value is more than threshold voltage v2, this period is sensed as wind
The initialization time of device, namely ptc critesistor works to the steady statue time；After ptc critesistor working stability, resistance
Resistance can raise with temperature and increase, then partial pressure vp starts to reduce, until stablizing on voltage v4.Therefore, real in the application
Apply in example, control circuit need control the time delay t1 time after re-sampling partial pressure vp value.
When the value of partial pressure vp is more than v4 and is less than threshold voltage v2, this small change is believed that in air channel there is interference
Blow air over, be not the sustained wind of blower fan blowout, but when the value of partial pressure vp is increased to v2 and persistently increases, illustrate that blower fan has left
Open blowout sustained wind so that ptc thermistor temp reduces and resistance reduction.
First resistor r1 can be adjustable resistance, and partial pressure vp according to ambient conditions adjustment output is after circuit working stability
Output voltage values are less than or equal to threshold voltage v2.
Preferably, as shown in figure 3, the wind induction apparatus of the embodiment of the present application proposition, preferably real in one kind of control circuit
Apply in example, control circuit includes ambient temperature detection circuit and comparison circuit u1；Ambient temperature detection circuit includes ambient temperature
Temperature-sensitive head rn and second resistance r2；Ambient temperature temperature-sensitive head rn, such as ntc critesistor, its one end is grounded, and the other end connects the
Two resistance r2；The other end of second resistance r2 connects the first power supply vcc；Second resistance r2 is with ambient temperature temperature-sensitive head rn's
Connection end leads to second voltage outfan vn；First voltage outfan vp connects the first input end of comparison circuit, the second electricity
Pressure outfan vn connects the second input of comparison circuit；The outfan of comparison circuit u1 is as the outfan of control circuit.
In the embodiment of the present application, output partial pressure vn of ambient temperature detection circuit makes as the reference voltage of comparison circuit
With output partial pressure vp of ptc temperature-sensitive circuit is compared with reference voltage vn, exports two kinds of different output levels according to comparable situation
As control signal.
In this case, ambient temperature temperature-sensitive head is different from ptc critesistor, and it is not subject in air channel new wind flow to produce temperature
Significant changes.In the case of extraneous ambient temperature-stable, the resistance of this ambient temperature temperature-sensitive head is also stable.
Specifically, so that comparison circuit is as operational amplifier as a example, wherein, the first input end of comparison circuit is operation amplifier
The inverting input of device, the second input of comparison circuit is the in-phase input end of operational amplifier, the outfan of comparison circuit
Outfan for operational amplifier；After working on power, the partial pressure output vn of ambient temperature detection circuit can stably export to fortune
Calculate the inverting input of amplifier, provide reference voltage, the threshold voltage in this reference voltage namely this case for amplifier；Ptc feels
The partial pressure output vp of circuit temperature can increase moment, and then as the heating of ptc critesistor, vp can quickly reduce, final vp meeting
Stablize and be less than in the value of vn at one, now amplifier output low level, namely the second control signal is to control circuit；When in air channel
When having fresh air constant flow, vn is not affected by wind or affects less and keeps stable, and ptc critesistor can be fast by wind effect
Speed radiating and temperature reduces, lead to resistance to reduce, thus ptc temperature-sensitive circuit output partial pressure vp increases rapidly, then input amplifier
The voltage of in-phase end increases, and when vp is greater than anti-phase input terminal voltage vn, amplifier exports high level, namely the first control signal is extremely
Control circuit.It should be noted that when vp be more than vn when it is ensured that choose amplifier voltage gain meet (vp-vn)/2 >=
Vcc, when vp is less than vn it is ensured that the amplifier voltage gain chosen meets (vp-vn)/2≤0.
In ptc critesistor type selecting it is desirable to ptc critesistor from powered on moment to the time of stable output will be as far as possible
Short.
The presence of ambient temperature detection circuit, makes the operating temperature range of this wind induction apparatus wide, strong adaptability.Work as environment
When temperature is low, affected by ambient temperature temperature-sensitive head characteristic, the resistance of ambient temperature temperature-sensitive head can increase, output partial pressure vn can be relatively
High during room temperature, so can avoid, when there is no fresh air constant flow, depending merely on surrounding and ptc critesistor being lowered the temperature, even if
Reach the vp value of the exportable voltage of amplifier during original room temperature, due to the rising of reference voltage, amplifier is the same not to have output voltage；
In the same manner, when ambient temperature is high, the resistance of ambient temperature temperature-sensitive head can reduce, and output partial pressure vn can be low compared with during room temperature, due to outer
Boundary's ambient temperature is high, and ptc radiating is slow, even if having blowing air over the vp that vp does not rise to amplifier exportable voltage during original room temperature yet
Value, but the reduction due to vn, even if fall is less than the vp value of the exportable voltage of amplifier during original room temperature, amplifier also has output electricity
Pressure.
Additionally, for the multiformity tackling external environment condition, when installing wind induction apparatus, in order to preferably provide for amplifier
Reference voltage vn, can on ambient temperature temperature-sensitive head an adjustable resistor r3 in parallel, for mending to the temperature of external environment condition
Repay.
Based on wind induction apparatus set forth above, the VMC (Ventilation Mechanical Control System) that the application proposes includes the closing space needing inletting fresh air
And the air channel for inletting fresh air, blower fan, other end installation air cleaner are installed in the one end in air channel；Air port position in air channel
Install wind induction apparatus set forth above it is ensured that ptc critesistor is arranged at the position of air blower；As shown in figure 4, controlling
The outfan of circuit 41 connects the control signal of air cleaner 44, realizes the control signal in control circuit output and controls
Air cleaner starts or quits work.
Specifically, when being not turned on VMC (Ventilation Mechanical Control System), air cleaner does not work, after opening VMC (Ventilation Mechanical Control System), blower fan
Start work, fresh air enters air channel 42 from air port constant flow, and the ptc critesistor heat of air port 43 position is by lasting fresh air band
Walk and temperature drop, lead to output partial pressure vp of ptc temperature-sensitive circuit to rise rapidly, after rising above threshold voltage, control electricity
Road output control signal the enabling signal startup air cleaner work as air cleaner, purification fan imports
Fresh air is so that the air entering closing space is cleaned fresh air.
Above-mentioned, wind induction apparatus and VMC (Ventilation Mechanical Control System) that the application proposes, wind induction apparatus, base are set at the air port in air channel
In in this wind induction apparatus ptc critesistor cooling after resistance reduce characteristic, when have in air channel continue new wind flow when,
Ptc temperature-sensitive circuit output partial pressure vp quickly increases, and when increasing above threshold voltage, judges there is fresh air constant flow in air channel,
This threshold voltage can set according to actual environment situation.By the change of ptc critesistor partial pressure, this judges that air port is
No have fresh air constant flow, thus producing the mode that control signal controls air cleaner to start, is not that blower fan is started letter
Number as air cleaner startup control signal, fan initiating signal is transferred to using cable compared in prior art
Air cleaner come to start air cleaner work, eliminate cable cost, more need not pre-buried cable, there is low one-tenth
Originally, design simple technique effect, solve in prior art and sense, using air velocity transducer, the high cost existing during fresh air
Technical problem.
It should be pointed out that described above is not to restriction of the present utility model, this utility model is also not limited to
The example above, change that those skilled in the art are made in essential scope of the present utility model, modification, adds
Plus or replace, also should belong to protection domain of the present utility model.
Claims (5)
1. wind induction apparatus are it is characterised in that include ptc temperature-sensitive circuit and control circuit；Described ptc temperature-sensitive circuit includes first
Power supply, ptc critesistor and first resistor；Wherein, described ptc critesistor is arranged at the tuyere position in air channel, one
End connects described first power supply, and the other end connects described first resistor, the other end ground connection of described first resistor；
Lead to first voltage outfan, described first voltage with the connection end of described ptc critesistor and described first resistor
Outfan connects the input of described control circuit；
Described control circuit, the voltage signal output control signal based on its input.
2. wind induction apparatus according to claim 1 are it is characterised in that the control circuit of described wind induction apparatus includes ring
Border temperature sensing circuit and comparison circuit；
Described ambient temperature detection includes ambient temperature temperature-sensitive head and second resistance；Described ambient temperature temperature-sensitive head one end ground connection,
The other end connects described second resistance；The other end of described second resistance connects described first power supply；Described second resistance
Lead to second voltage outfan with the connection end of described ambient temperature temperature-sensitive head；
Described first voltage outfan connects the first input end of described comparison circuit, and described second voltage outfan connects described
Second input of comparison circuit；The outfan of described comparison circuit is the outfan of described control circuit.
3. wind induction apparatus according to claim 2 are it is characterised in that described comparison circuit is operational amplifier, described
The first input end of comparison circuit is the inverting input of operational amplifier, and the second input of described comparison circuit is put for computing
The in-phase input end of big device, the outfan of described comparison circuit is the outfan of operational amplifier.
4. wind induction apparatus according to claim 2 it is characterised in that be parallel with one with described ambient temperature temperature-sensitive head can
Adjust resistor.
5. a kind of VMC (Ventilation Mechanical Control System), the air cleaner of the blower fan including air channel, being installed on air channel one end and the air channel other end；Its
It is characterised by, also include the wind induction apparatus as described in any one of claim 1-4；And described wind induction apparatus be arranged at described
The tuyere position in air channel；The outfan of described control circuit connects the control signal of described air cleaner, realizes described
The control signal of control circuit output controls described air cleaner to start or stop work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620462110.4U CN205897424U (en) | 2016-05-20 | 2016-05-20 | Wind induction system and new trend system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620462110.4U CN205897424U (en) | 2016-05-20 | 2016-05-20 | Wind induction system and new trend system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205897424U true CN205897424U (en) | 2017-01-18 |
Family
ID=57765922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620462110.4U Active CN205897424U (en) | 2016-05-20 | 2016-05-20 | Wind induction system and new trend system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205897424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841281A (en) * | 2016-05-20 | 2016-08-10 | 海信（山东）空调有限公司 | Wind sensing device and fresh air system |
| CN117927921A (en) * | 2024-03-25 | 2024-04-26 | 山东华鼎伟业能源科技股份有限公司 | Explosion-proof LED work lamp |
-
2016
- 2016-05-20 CN CN201620462110.4U patent/CN205897424U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841281A (en) * | 2016-05-20 | 2016-08-10 | 海信（山东）空调有限公司 | Wind sensing device and fresh air system |
| CN105841281B (en) * | 2016-05-20 | 2019-07-16 | 海信（山东）空调有限公司 | A kind of wind induction apparatus and fresh air system |
| CN117927921A (en) * | 2024-03-25 | 2024-04-26 | 山东华鼎伟业能源科技股份有限公司 | Explosion-proof LED work lamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205825336U (en) | A kind of intelligence body-sensing air-conditioning | |
| CN106152378B (en) | A kind of mixed flow air-conditioning and its mixed flow control method | |
| CN207065682U (en) | Air port flow control system | |
| CN205897424U (en) | Wind induction system and new trend system | |
| CN205878472U (en) | Fresh air purification machine with noise regulatory function | |
| CN105841281B (en) | A kind of wind induction apparatus and fresh air system | |
| CN202971260U (en) | Electric fan temperature control circuit | |
| CN102287890A (en) | Externally controlled variable-discharge capacity compressor air conditioner controller | |
| CN204835300U (en) | Can prevent air conditioning switch cabinet of condensation | |
| EP3809049B1 (en) | Balanced cleaning system for pollutants | |
| CN206430310U (en) | A kind of room ventilating apparatus | |
| CN104460907A (en) | Computer water-cooling radiating system | |
| CN206875675U (en) | Air-conditioner air supply device and the air conditioner with the device | |
| CN206193560U (en) | IDC computer lab temperature control system | |
| CN206439976U (en) | A kind of heat-exchange fan | |
| CN203364284U (en) | Independent branch pipe control air supply system of fresh air replacement system | |
| CN202709393U (en) | Smart energy-saving air refreshing system for machine room | |
| CN206889308U (en) | A kind of intelligent DC fans stepless speed regulation control circuit | |
| CN206563399U (en) | A kind of heat-exchange fan | |
| CN206563402U (en) | A kind of heat-exchange fan | |
| CN205717738U (en) | A kind of air conditioner energy conservation control system based on A/D change-over circuit | |
| CN107632683A (en) | Computer network assembly control cabinet radiator structure | |
| CN205902980U (en) | Automatic hairdryer of preventing setting out | |
| CN205747304U (en) | A kind of ventilating system air pollution analyte detection device | |
| CN205079411U (en) | Increase device of return air pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |