CN108072231A - Blowing device and filter net jam warning device - Google Patents
Blowing device and filter net jam warning device Download PDFInfo
- Publication number
- CN108072231A CN108072231A CN201711144357.7A CN201711144357A CN108072231A CN 108072231 A CN108072231 A CN 108072231A CN 201711144357 A CN201711144357 A CN 201711144357A CN 108072231 A CN108072231 A CN 108072231A
- Authority
- CN
- China
- Prior art keywords
- air
- warning device
- strainer
- filter net
- alarm
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/008—Alarm devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
Abstract
The present invention provides a kind of filter net jam warning devices, including wind turbine, the strainer of the air inlet duct for being arranged at wind turbine air intake and the air inlet for being set up in air inlet duct；It is provided on air inlet duct positioned at the air side of strainer, the warning device being monitored to the blocking of strainer, warning device is directly monitored the monsoon intensity that goes out for passing through strainer, going out monsoon intensity includes air force, wind speed size etc., outlet air strength information is converted into outlet air strength signal, by signal processor to the outlet air strength signal discriminatory analysis of reception, when outlet air strength signal exceeds threshold value, illustrate that filter net jam causes monsoon intensity cannot reach requirement, alarm signal is received by alarm, and makes alarm response.Directly outlet air strength information is acquired by flow sensing device, influenced by environment, equipment it is smaller, it is applied widely, meet the on-line real time monitoring requirement to air quantity under varying environment.The present invention also provides a kind of blowing devices with above-mentioned filter net jam warning device.
Description
Technical field
The present invention relates to dust work technical fields, alarm more specifically to a kind of blowing device and filter net jam
Device.
Background technology
For dust concentration around compared with the blowing device in overall situation, it will usually increase in the air inlet position of blowing device
One of filter screen for filtering dust particles larger in environment and other foreign matters, avoids damage wind turbine or pollution from needing air blast
The material of processing.After filter screen works long hours, dust can be gradually bonded on filter mesh, and mesh is caused to block.So meeting
Cause volume of air supply that design requirement is not achieved, and then influence the realization of function.
After filter net jam, it is necessary to even if sending alarm warning, even if to strainer clear up.Strainer is currently used for block up
In the alarm technique of plug, mainly there are following several forms, first, using the motor of air blower as detecting element, by judging motor
Rotating speed come judge air quantity indirectly, when air quantity is not in claimed range, send alarm signal；Second is that in filter screen inside and outside two
Side sets pressure sensor, by the pressure differential of both sides to determine whether blocking, when pressure difference is not in allowed band, sends
Alarm signal；Third, in the inside and outside both sides set temperature sensor of filter screen, by the temperature difference of both sides to determine whether blocking, when
When the temperature difference is not in allowed band, alarm signal is sent.
The first alarm form, smaller scope of application are only applicable to direct current supply motor, it is impossible to be used in Alternating Current Power Supply electricity
Machine；Second of alarm form, is equally limited by use scope, and warning device requirement leakproofness must be good, otherwise can not lead to
Inside and outside pressure difference is crossed to judge；The third alarm form, it is influenced by environmental temperature using temperature sensor, it is not suitable for temperature
Spend the occasion changed greatly.
Therefore, how a kind of small warning device that is affected by the external environment is provided, be current those skilled in the art urgently
It solves the problems, such as.
The content of the invention
In view of this, the present invention provides a kind of filter net jam warning device, with provide one kind be affected by the external environment it is small
Warning device；The present invention also provides a kind of blowing devices.
In order to achieve the above object, the present invention provides following technical solution：
A kind of filter net jam warning device including wind turbine, is arranged at the air inlet duct of the wind turbine air intake and is set up in institute
State the strainer of the air inlet of air inlet duct；
It is provided on the air inlet duct positioned at the air side of the strainer, the alarm that the blocking of strainer is monitored is filled
It puts, the warning device includes：
Flow sensing device gathers the outlet air strength information through the strainer, and sends outlet air strength signal；
Signal processor receives the outlet air strength signal, and when the outlet air strength signal exceeds threshold value, sends report
Alert signal；
Alarm receives the alarm signal, and makes alarm response.
Preferably, in above-mentioned filter net jam warning device, the flow sensing device includes：With the outlet air of the strainer
Direction is opposite, and the blade rotational structure rotated is driven by the intake for passing through the strainer；Monitor the blade rotational structure
Rotating speed speed, and send the sensor of outlet air strength signal.
Preferably, in above-mentioned filter net jam warning device, the blade rotational structure includes stent, is set up in the branch
Wind turbine, wind wheel or fan blade on frame.
Preferably, in above-mentioned filter net jam warning device, the sensor goes out to be arranged at the blade rotational structure
The photoelectric sensor or gas flow transducer of wind side.
Preferably, in above-mentioned filter net jam warning device, the flow sensing device includes mounting bracket and is set up in institute
State air measuring instrument, air speed measuring apparatus or the tachometer of measuring on mounting bracket.
Preferably, in above-mentioned filter net jam warning device, the flow sensing device includes wind-driven generator and erection
Wind wheel in the wind-driven generator shaft end, the outlet air strength signal are the current signal of the wind-driven generator.
Preferably, in above-mentioned filter net jam warning device, the alarm is voice guard, visual alarm or sound
Light crossing-signal.
A kind of blowing device, the blowing device include as above any one of them filter net jam warning device.
Filter net jam warning device provided by the invention including wind turbine, is arranged at the air inlet duct of wind turbine air intake and sets up
In the strainer of the air inlet of air inlet duct；It is provided on air inlet duct positioned at the air side of strainer, the blocking of strainer is monitored
Warning device, warning device include flow sensing device, gather the outlet air strength information through strainer, and send outlet air intensity letter
Number；Signal processor receives outlet air strength signal, and when outlet air strength signal exceeds threshold value, sends alarm signal；Alarm
Device receives alarm signal, and makes alarm response.Warning device is directly monitored the outlet air strength information for passing through strainer,
Outlet air strength information can be through the air force of strainer or wind speed size etc., and outlet air strength information is converted to out monsoon intensity
Signal by signal processor to the outlet air strength signal discriminatory analysis of reception, when outlet air strength signal exceeds threshold value, illustrates to filter
Net, which blocks, causes air quantity that cannot reach requirement, receives alarm signal by alarm, and makes alarm response.It is filled by flow sensing
Put and directly outlet air strength information be acquired, influenced by environment, equipment it is smaller, it is applied widely, meet varying environment
Under to the requirement of the on-line real time monitoring of air quantity.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of filter net jam warning device provided by the invention；
Fig. 2 is the structure diagram of first preferred embodiment in filter net jam warning device provided by the invention；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the left view of Fig. 2；
Fig. 5 is the structure diagram of the second preferred embodiment in filter net jam warning device provided by the invention；
Fig. 6 is the left view of Fig. 5；
Fig. 7 is the structure diagram of third preferred embodiment in filter net jam warning device provided by the invention；
Fig. 8 is the left view of Fig. 7.
Specific embodiment
The invention discloses a kind of filter net jam warning devices, provide a kind of alarm dress for being affected by the external environment small
It puts；The present invention also provides a kind of blowing devices.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Whole description, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
The embodiment of the present invention, the every other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, belongs to the scope of protection of the invention.
As shown in Figure 1, Fig. 1 is the structure diagram of filter net jam warning device provided by the invention.
The present invention provides a kind of filter net jam warning device, including wind turbine 6, the air inlet duct 5 of wind turbine air intake is arranged at,
With the strainer 4 of the air inlet that is set up in air inlet duct 5；It is provided on air inlet duct 5 positioned at the air side of strainer 4, the blocking to strainer 4
The warning device being monitored, warning device include flow sensing device 3, gather the outlet air strength information through strainer 4, concurrently
Outlet air strength signal；Signal processor 2 receives outlet air strength signal, and when outlet air strength signal exceeds threshold value, sends report
Alert signal；Alarm 1 receives alarm signal, and makes alarm response.Wind turbine 6 works, and is passed through extraneous air quantity by air inlet duct 5
Strainer 4 sucks, and is discharged through exhaust passage 7.Warning device is directly monitored the outlet air strength information for passing through strainer 4, and outlet air is strong
It can be through the air force of strainer or wind speed size etc. to spend information, and outlet air strength information is converted to outlet air strength signal,
By signal processor 2 to the outlet air strength signal discriminatory analysis of reception, when outlet air strength signal exceeds threshold value, illustrate strainer 4
Blocking causes air quantity that cannot reach requirement, receives alarm signal by alarm 1, and makes alarm response.It is filled by flow sensing
3 are put directly to be acquired outlet air strength information, influenced by environment, equipment it is smaller, it is applied widely, meet varying environment
Under to the requirement of the on-line real time monitoring of air quantity.
As shown in figs 2-4, Fig. 2 is the structure of first preferred embodiment in filter net jam warning device provided by the invention
Schematic diagram；Fig. 3 is the top view of Fig. 2；Fig. 4 is the left view of Fig. 2.
In one specific embodiment of this case, flow sensing device 3 includes：It is opposite with the air-out direction of strainer 4, by passing through filter
The intake of net 4 drives the blade rotational structure 31 rotated；The rotating speed speed of blade rotational structure 31 is monitored, and it is strong to send outlet air
Spend the sensor 32 of signal.Flow sensing device 3 is opposite with the air-out direction of strainer 4 by blade rotational structure 31, through strainer 4
Intake, rotated by the monsoon intensity of itself intake band movable vane piece rotational structure 31, the rotating speed of blade rotational structure 31 is fast
Slowly air force can be reflected, the speed of blade rotational structure 31 is monitored by sensor 32, it can be previously according to not
With the rotating speed speed of air quantity data test blade rotational structure 31, quantitative data is obtained, determines the threshold value of monsoon intensity, and it is preset
In in signal processor 2, the outlet air strength signal monitored is sent to signal processor 2 by blade rotational structure 31, is passed through
The live signal of acquisition is compared with preset signal, and when the outlet air strength signal of comparison exceeds threshold value, control alarm 1 is alarmed.
Threshold value is called critical value, refers to minimum or peak that an effect can generate.By the minimum of air quantity data
Value writes the data of signal processor as the critical value that alarm warning is carried out to strainer.
In one specific embodiment of this case, blade rotational structure 31 includes stent 33, wind turbine, the wind being set up on stent 33
Wheel or fan blade.Blade rotational structure 31 is by passing through the wind of strainer 4 to drive automatic rotate.Wind turbine, wind wheel or fan blade include blade
With rotation axle construction, it may include shell only includes individual blade construction, and wind turbine or wind wheel or fan blade are carried out by stent 33
Support.Stent 33 is U-bracket, and the installing plate of the U-bracket one side opposite with strainer 4 opens up air inlet, wind turbine, wind wheel or wind
The air inlet direction of leaf is opposite with air inlet, and the bottom plate of U-bracket is connected with air intake passage, and the installing plate away from strainer one side is set
Flange, sensor are installed on installing plate, and the sensing direction of sensor is opposite with the air-out direction of wind turbine, wind wheel or fan blade.
In one specific embodiment of this case, sensor 1 is the photoelectric sensor for being arranged at 31 air side of blade rotational structure
Or gas flow transducer.Sensor is monitored the blade rotational speed of blade rotational structure.When such as using photoelectric sensor, blade
Rotating speed speed influences connection or the turn-off time of photoelectric sensor, using time data as the monitoring data of outlet air strength information,
It is compared in signal processor 2, the break time of photoelectric sensor is compared with preset time, reflection outlet air is strong
Degree, such as air force, wind speed size.The response of gas flow transducer is more direct, to pass through the air-flow of blade rotational structure into
Row detection, the air quantity that should be reduced to the greatest extent through strainer influence it.
As shown in Figure 5 and Figure 6, Fig. 5 is the knot of the second preferred embodiment in filter net jam warning device provided by the invention
Structure schematic diagram；Fig. 6 is the left view of Fig. 5.
In one specific embodiment of this case, flow sensing device 3 includes mounting bracket 82 and the wind being set up on mounting bracket 82
Flowmeter, air speed measuring apparatus or tachometer of measuring (81).Through the intake of strainer 4, by air measuring instrument, air speed measuring apparatus
Or tachometer of measuring directly carries out air quantity acquisition, it is straight with air quantity threshold value in signal processor 2 by the air force data of acquisition
Comparison is connect, when air force exceeds threshold value, directly alarm 1 is controlled.Mounting bracket 82 is U-shaped mounting bracket, and U-shaped is installed
Frame is fixedly mounted with by its bottom plate, and air inlet is opened up on the installing plate of 4 one side of strainer, air measuring instrument, air speed measuring apparatus or
Tachometer of measuring is installed on installing plate and opposite with air inlet position, and directly air quantity is monitored.
As shown in Figure 7 and Figure 8, Fig. 7 is the knot of third preferred embodiment in filter net jam warning device provided by the invention
Structure schematic diagram；Fig. 8 is the left view of Fig. 7.
In one specific embodiment of this case, flow sensing device 3 includes wind-driven generator 93 and is set up in wind-driven generator
The wind wheel 91 of shaft end, outlet air strength signal are the current signal of wind-driven generator 93.Flow sensing device 3 is by passing through strainer 4
Air quantity direction is opposite, is set to small-sized wind power generator 93, and the shaft end of wind-driven generator sets wind wheel 91, wind-driven generator
93 are supportted by 92 frame of fixing and mounting bracket in air inlet duct 5, and wind wheel 91 is opposite with the air inlet direction of strainer 4, by the wind band for passing through strainer 4
Dynamic wind wheel 91 rotates, and is rotated by wind wheel 91 and wind-driven generator 93 is driven to rotate generation low current, current signal is transported at signal
Device 2 is managed, current signal is converted into electric signal, the size of electric signal is judged by signal processor 2, controls the sound of alarm
It should.
In a specific embodiment of the invention, alarm 1 is voice guard, visual alarm or audible-visual annunciator.It receives
During the alarm signal value provided to signal processor, send alarm sound or excitation alarm light or the two occurs simultaneously.
After wind turbine 6 starts, the air-flow in external environment is after the purification of strainer 4, by air inlet duct 5, in the effect of wind turbine 6
Under, it is bloated from exhaust passage 7.Flow sensing device 3 can read an information when sensing that air-flow passes through according to air-flow size
Value, then passes to signal processor 2 by this value of information, and signal processor 2 can carry out logic judgment after receiving information, when
The value of information provides alarm signal not in zone of reasonableness, and audible-visual annunciator 1 sends alarm sound after receiving alarm signal or swashs
It transmits messages warning lamp light, user is reminded to replace strainer.
Based on the filter net jam warning device provided in above-described embodiment, the present invention also provides a kind of blowing device, bags
The hinged refrigerator doors on the babinet of babinet and one end are included, the refrigerator doors are equipped with refrigerator handle, are set on the blowing device
Just like the filter net jam warning device provided in above-described embodiment.
Since the blowing device employs the filter net jam warning device of above-described embodiment, so the blowing device is by strainer
The advantageous effect that obstruction alarm device is brought refer to above-described embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (8)
1. a kind of filter net jam warning device, which is characterized in that including wind turbine, the air inlet duct of the wind turbine air intake is arranged at,
With the strainer of the air inlet that is set up in the air inlet duct；
It is provided on the air inlet duct positioned at the air side of the strainer, to the warning device that the blocking of strainer is monitored, institute
Stating warning device includes：
Flow sensing device gathers the outlet air strength information through the strainer, and sends outlet air strength signal；
Signal processor receives the outlet air strength signal, and when the outlet air strength signal exceeds threshold value, sends alarm signal
Number；
Alarm receives the alarm signal, and makes alarm response.
2. filter net jam warning device according to claim 1, which is characterized in that the flow sensing device includes：With
The air-out direction of the strainer is opposite, and the blade rotational structure rotated is driven by the intake for passing through the strainer；Described in monitoring
The rotating speed speed of blade rotational structure, and send the sensor of outlet air strength signal.
3. filter net jam warning device according to claim 2, which is characterized in that the blade rotational structure includes branch
Frame, wind turbine, wind wheel or the fan blade being set up on the stent.
4. filter net jam warning device according to claim 2, which is characterized in that the sensor is to be arranged at the leaf
The photoelectric sensor or gas flow transducer of piece rotational structure air side.
5. filter net jam warning device according to claim 1, which is characterized in that the flow sensing device includes installation
Frame and air measuring instrument, air speed measuring apparatus or the tachometer of measuring being set up on the mounting bracket.
6. filter net jam warning device according to claim 1, which is characterized in that the flow sensing device includes wind-force
Generator and the wind wheel for being set up in the wind-driven generator shaft end, the outlet air strength signal are the electric current of the wind-driven generator
Signal.
7. filter net jam warning device according to claim 1, which is characterized in that the alarm for voice guard,
Visual alarm or audible-visual annunciator.
8. a kind of blowing device, which is characterized in that the blowing device includes blocking up such as claim 1-7 any one of them strainers
Fill in warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144357.7A CN108072231A (en) | 2017-11-17 | 2017-11-17 | Blowing device and filter net jam warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144357.7A CN108072231A (en) | 2017-11-17 | 2017-11-17 | Blowing device and filter net jam warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108072231A true CN108072231A (en) | 2018-05-25 |
Family
ID=62157242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711144357.7A Pending CN108072231A (en) | 2017-11-17 | 2017-11-17 | Blowing device and filter net jam warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108072231A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798761A (en) * | 2019-02-12 | 2019-05-24 | 威海星宜新材料科技有限公司 | A kind of lithium battery diaphragm annealing device monitoring strainer and strainer monitoring method |
| CN110005114A (en) * | 2019-04-02 | 2019-07-12 | 嘉兴市品鼎电器有限公司 | A kind of Integral ceiling for kitchen use |
| CN110608188A (en) * | 2019-11-01 | 2019-12-24 | 广东钜宏科技股份有限公司 | FFU controller based on wind speed closed-loop control |
| CN111023442A (en) * | 2019-11-05 | 2020-04-17 | 南京大学 | Air purification equipment purification efficiency risk identification and filter screen resetting reminding system and method |
| CN111765619A (en) * | 2020-07-03 | 2020-10-13 | 深圳市旷世伟业工程有限公司 | Central air conditioner noise reduction structure and method thereof |
| WO2021082372A1 (en) * | 2019-10-28 | 2021-05-06 | 南京长三角绿色发展研究院有限公司 | Purification efficiency risk identification and filter screen reset reminding system and method for air purification device |
| CN113251484A (en) * | 2021-05-28 | 2021-08-13 | 江西汇恒盛世能源科技有限责任公司 | Automatic steering air guide device for bidirectional air outlet of air conditioner |
| CN114534382A (en) * | 2022-02-17 | 2022-05-27 | 东方电气集团东方电机有限公司 | Fault checking method, device, system and computer readable storage medium |
| WO2023236561A1 (en) * | 2022-06-07 | 2023-12-14 | 青岛海尔空调器有限总公司 | Air conditioner filter screen blockage reminding method and apparatus, air conditioner, and storage medium |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798761A (en) * | 2019-02-12 | 2019-05-24 | 威海星宜新材料科技有限公司 | A kind of lithium battery diaphragm annealing device monitoring strainer and strainer monitoring method |
| CN110005114A (en) * | 2019-04-02 | 2019-07-12 | 嘉兴市品鼎电器有限公司 | A kind of Integral ceiling for kitchen use |
| WO2021082372A1 (en) * | 2019-10-28 | 2021-05-06 | 南京长三角绿色发展研究院有限公司 | Purification efficiency risk identification and filter screen reset reminding system and method for air purification device |
| CN110608188A (en) * | 2019-11-01 | 2019-12-24 | 广东钜宏科技股份有限公司 | FFU controller based on wind speed closed-loop control |
| CN111023442A (en) * | 2019-11-05 | 2020-04-17 | 南京大学 | Air purification equipment purification efficiency risk identification and filter screen resetting reminding system and method |
| CN111765619A (en) * | 2020-07-03 | 2020-10-13 | 深圳市旷世伟业工程有限公司 | Central air conditioner noise reduction structure and method thereof |
| CN113251484A (en) * | 2021-05-28 | 2021-08-13 | 江西汇恒盛世能源科技有限责任公司 | Automatic steering air guide device for bidirectional air outlet of air conditioner |
| CN114534382A (en) * | 2022-02-17 | 2022-05-27 | 东方电气集团东方电机有限公司 | Fault checking method, device, system and computer readable storage medium |
| WO2023236561A1 (en) * | 2022-06-07 | 2023-12-14 | 青岛海尔空调器有限总公司 | Air conditioner filter screen blockage reminding method and apparatus, air conditioner, and storage medium |
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Effective date of registration: 20190729 Address after: 410100 Xingsha Industrial Base (Changlong Street), Changsha Economic and Technological Development Zone, Changsha City, Hunan Province, No. 1259, Liangtang East Road Applicant after: Kaiyuan Instrument Co., Ltd., Changsha Address before: Kaiyuan Road 410100 in Hunan province Changsha City Economic and Technological Development Zone No. 172 Applicant before: Changsha Kaiyuan Instruments Co., Ltd. |
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Application publication date: 20180525 |