CN206831685U - A kind of fan coil units with air-cleaning function - Google Patents

A kind of fan coil units with air-cleaning function Download PDF

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Publication number
CN206831685U
CN206831685U CN201720625941.3U CN201720625941U CN206831685U CN 206831685 U CN206831685 U CN 206831685U CN 201720625941 U CN201720625941 U CN 201720625941U CN 206831685 U CN206831685 U CN 206831685U
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CN
China
Prior art keywords
air
filter
sensor
chip microcomputer
fan coil
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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
Application number
CN201720625941.3U
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Chinese (zh)
Inventor
艾显文
卓君
陈超
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Sichuan Huacheng Mechanical And Electrical Equipment Co Ltd
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Chengdu Huanyu Lvzhou Environmental Technology Co Ltd
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Filing date
Publication date
Application filed by Chengdu Huanyu Lvzhou Environmental Technology Co Ltd filed Critical Chengdu Huanyu Lvzhou Environmental Technology Co Ltd
Priority to CN201720625941.3U priority Critical patent/CN206831685U/en
Application granted granted Critical
Publication of CN206831685U publication Critical patent/CN206831685U/en
Expired - Fee Related legal-status Critical Current
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Air Conditioning Control Device (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

The utility model discloses a kind of fan coil units with air-cleaning function, and it includes cabinet and air quality detection system, and the both ends of cabinet are respectively arranged with air inlet and air outlet;High efficiency particulate air filter, physical absorption device, Air pressurizer and heat exchanger are disposed between air inlet and air outlet, roughing efficiency air filter, medium effeciency filter, anion is disposed between air inlet and high efficiency particulate air filter at least one of case occurs;Air quality detection system includes single-chip microcomputer, the sensor cluster being connected with single-chip microcomputer input, and touch-screen, alarm, WiFi module and the central air-conditioning processing system being connected with single-chip microcomputer output.The utility model can effectively filter out PM2.5 and formaldehyde, carbon monoxide, sulfur dioxide, hydrocarbon in room environment etc., reach purification of air, the purpose of heating refrigeration, and the utility model uses integral structure, secondary assembling is not needed, convenience in transport, installation and saving use space and cost.

Description

A kind of fan coil units with air-cleaning function
Technical field
It the utility model is related to central air conditioner system field, and in particular to a kind of fan coil with air-cleaning function Unit.
Background technology
At present, central air-conditioning has set foot in every field, such as:Hotel, KTV, hospital, movie theatre, Xie Gong buildings, market, family Front yard etc., in these application fields, indoor air supply system typically using fan coil units, suspended ceiling air handling group and falls Ground formula air-treatment unit be used for central air-conditioning room in heat exchange section, fan coil units because equipment it is compact, it is easy for installation, The advantage utilizations such as noise is low are the most extensive, but the outer overbottom pressure of conventional blower coil pipe unit is generally 12-50pa, and no image of Buddha ceiling mounting type is empty Gas disposal unit and console mode air-treatment unit design the thick effect, middle effect, high efficiency particulate air filter of high-drag like that, and conventional crude was imitated Filter Resistance≤50pa, medium effeciency filter≤80pa, high efficiency particulate air filter≤220pa.Conventional blower coil pipe unit is freezing or made In hot running, the substantial amounts of dust granule in room, bacterium etc. are accumulated on fan coiled heat-exchanger, pollute space air quality And influence air-conditioning using effect.Especially in cooling in summer, conventional blower coil heat exchanger is chronically under high- humility state, is changed Hot device and drip tray have become bacterium and have multiplied follow-on hotbed, and bacterium is sent into room air-borne transmission by air channel, invades people Skin, respiratory system etc., have a strong impact on health.Because conventional blower coil pipe unit can not overcome the resistance of conventional filters Power, it is routinely in fan coil units air return section increase physics purification of air, electronic installation purification of air by the way of at present The mode that either both are combined.Physics purification of air mainly installs thick effect, medium effeciency filter and activity using in air return section Charcoal absorption etc., but traditional thick effect, medium effeciency filter have that windage is big, filter efficiency is poor and considerably increase fan coil The problem of operation energy consumption of unit etc.;Electronic installation purification of air mainly installs high-pressure electrostatic precipitation, nanometer using in air return section The modes such as photon disinfection, electronic installation purification of air windage is small, but filter efficiency is general, can be produced again while operation The secondary pollution of the harmful materials such as raw a large amount of ozone, ultraviolet.So that existing fan coil can not meet space air Purification and environment disinfected, the effect of sterilization.
Utility model content
For above-mentioned deficiency of the prior art, a kind of fan unit with air-cleaning function provided by the utility model Pipe unit solves the problems, such as that existing fan coil can not meet space air purification and environment disinfected, the effect of sterilization.
In order to reach foregoing invention purpose, the technical solution adopted in the utility model is:
A kind of fan coil units with air-cleaning function are provided, it includes cabinet and air quality detection system, The both ends of cabinet are respectively arranged with air inlet and air outlet;High efficiency particulate air filter, thing are disposed between air inlet and air outlet Manage adsorbent equipment, Air pressurizer and heat exchanger, be disposed between air inlet and high efficiency particulate air filter roughing efficiency air filter, in Imitate filter, at least one of case occurs for anion;
Air quality detection system includes single-chip microcomputer, the sensor cluster being connected with single-chip microcomputer input, and with list Touch-screen, alarm, WiFi module and the central air-conditioning processing system that piece machine output end is connected.
The beneficial effects of the utility model are:While room air regulation is met, room environment can be effectively filtered out In PM2.5 and formaldehyde, carbon monoxide, sulfur dioxide, hydrocarbon etc., reach purification of air, the purpose of heating refrigeration.This Utility model uses integral structure, it is not necessary to which secondary assembling, convenience in transport, installation and saving use space and cost.Use Person can also be directly viewable using touch-screen or the quality of room air is remotely checked using WiFi module, pass through control module It is connected with central air-conditioning processing system, the operational factor of central air-conditioning can be controlled, adjusts the air ambient in room.
Further, Air pressurizer includes motor, and the impeller assembly being connected with motor.
Further, sensor cluster includes air pressure probe, PM2.5 monitorings sensor, oxygen concentration detection biography Sensor, PM10 monitoring sensor, Formaldehyde sensor and TVOC monitoring sensor, and respectively with air pressure probe, PM2.5 monitorings sensor, oxygen concentration detection sensor, PM10 monitorings sensor, Formaldehyde sensor and TVOC monitorings pass The signal amplifier and A/D converter that sensor is connected, each A/D converter are all connected with single-chip microcomputer.
It is using the above-mentioned further beneficial effect of scheme:The stabilization of each sensor signal input single-chip microcomputer is effectively ensured Property.
Further, air pressure probe is arranged on entering on roughing efficiency air filter, medium effeciency filter and high efficiency particulate air filter Wind and outlet air surface.
It is using the above-mentioned further beneficial effect of scheme:It can monitor at any time by primarily efficient filter of the present utility model The pressure of air intake and outlet air surface both sides air when device, medium effeciency filter and high efficiency particulate air filter are run, set when pressure at both sides difference is higher than During definite value, alarm work reminds user to change or cleans filter, while by the presentation of information on the touchscreen.
Further, air quality detection system also includes keyboard, and keyboard connects single-chip microcomputer, is additionally provided with single-chip microcomputer USB interface.
It is using the above-mentioned further beneficial effect of scheme:The utility model is connect by external connection keyboard or USB Mouth carries out input signal, is easy to live undated parameter to configure.
Further, roughing efficiency air filter includes the first housing and is arranged on the filtering material of the first outer inframe, the first housing Material be aluminium alloy or steel wire metal, filtering material includes nylon wire and/or non-woven fabrics.
It is using the above-mentioned further beneficial effect of scheme:Filtering material and the assembling of the first housing are integral, in structure more Add firm, facilitate roughing efficiency air filter to be installed on the cleaning replacement in cabinet and during use.
Further, medium effeciency filter includes the second housing, and V-type is folded in the non-woven fabrics and fiber of the second outer inframe Cloth, the material of the second housing is aluminium alloy.
It is using the above-mentioned further beneficial effect of scheme:V-type folds and increases filter area, when reducing air and passing through Windage, improve the service life of medium effeciency filter.
Further, case, which occurs, for anion includes anion generator, emitting head and modular casing, and is arranged on mould Ozone monitoring sensor on block formula casing;Anion generator is placed in casing and connects emitting head, and emitting head is into geometry battle array Row pattern is in one line on casing;Ozone monitoring sensor connects the input of single-chip microcomputer, anion generator connection monolithic The output end of machine;The material of casing is metal, and the inner surface setting of casing has insulating barrier.
It is using the above-mentioned further beneficial effect of scheme:The transfer efficiency of anion is effectively improved, anion is improved and removes Dirt effect, while the concentration of ozone is monitored, once exceeding setting value, control module automatically controls the power of anion generator.
Further, high efficiency particulate air filter includes the 3rd housing, and is folded in the nano combined filter material of the 3rd outer inframe, the The material of three housings is aluminium alloy.
It is using the above-mentioned further beneficial effect of scheme:Nano combined filter material, which is folded with, increases filter area, drop Low air by when windage, improve the service life of filter.
Further, physical absorption device includes purification sorbing material, and purification sorbing material includes activated carbon, nanometer ore deposit One or more in brilliant, the pure and mild Mayan basket of diatom, and be arranged to cellular.
It is using the above-mentioned further beneficial effect of scheme:Multiple material is mixed in physical absorption device simultaneously, can be same When purify a variety of air pollutants, improve air-filtering ability.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein:1st, cabinet;2nd, roughing efficiency air filter;3rd, medium effeciency filter;4th, case occurs for anion;5th, high efficiency particulate air filter;6、 Physical absorption device;7th, impeller assembly;8th, motor;9th, heat exchanger;10th, air quality detection system;11st, air inlet;12nd, air-out Mouthful.
Embodiment
Specific embodiment of the present utility model is described below, in order to which those skilled in the art understand The utility model, it should be apparent that the utility model is not limited to the scope of embodiment, to the common skill of the art For art personnel, if various change in the spirit and scope of the present utility model that appended claim limits and determines, These changes are it will be apparent that all utilize the innovation and creation of the utility model design in the row of protection.
As shown in figure 1, should include cabinet 1 and air quality detection system 10, the both ends of cabinet 1 are respectively arranged with air inlet 11 and air outlet 12;High efficiency particulate air filter 5, physical absorption device 6, air is disposed between air inlet 11 and air outlet 12 to increase Pressure device and heat exchanger 9, roughing efficiency air filter 2, medium effeciency filter 3 are disposed between air inlet 11 and high efficiency particulate air filter 5, is born At least one of case 4 occurs for ion;Air quality detection system 10 includes single-chip microcomputer, the biography being connected with single-chip microcomputer input Sensor component, and touch-screen, alarm, WiFi module and the central air-conditioning processing system being connected with single-chip microcomputer output.
Air pressurizer includes motor 8, and the impeller assembly 7 being connected with motor 8.
Sensor cluster includes air pressure probe, PM2.5 monitorings sensor, oxygen concentration detection sensor, PM10 Sensor, Formaldehyde sensor and TVOC monitoring sensors are monitored, and is monitored respectively with air pressure probe, PM2.5 Sensor, oxygen concentration detection sensor, PM10 monitorings sensor, Formaldehyde sensor are connected with TVOC monitoring sensors Signal amplifier and A/D converter, each A/D converter is all connected with single-chip microcomputer.Air quality detection system 10 also includes key Disk, keyboard connect single-chip microcomputer, and USB interface is additionally provided with single-chip microcomputer, and USB interface is used to be connected with terminal (computer), is easy to The air quality data detected is transmitted to computer.
Roughing efficiency air filter 2 includes the first housing and is arranged on the filtering material of the first outer inframe, and the material of the first housing is Aluminium alloy or steel wire metal, filtering material include nylon wire and/or non-woven fabrics;Medium effeciency filter 3 includes the second housing, and V Type is folded in the non-woven fabrics and fiber cloth of the second outer inframe, and the material of the second housing is aluminium alloy;High efficiency particulate air filter 5 includes the 3rd Housing, and the nano combined filter material of the 3rd outer inframe is folded in, the material of the 3rd housing is aluminium alloy.Filtering material and housing Assemble integral, more firm in structure, convenient filter is installed on the cleaning replacement in cabinet 1 and during use.
Case 4, which occurs, for anion includes anion generator, emitting head and modular casing, and is arranged on modular casing On ozone monitoring sensor;Anion generator is placed in casing and connects emitting head, and emitting head is into geometric array pattern one Word is arranged on casing;The input of ozone monitoring sensor link control module, anion generator link control module Output end;The material of casing is metal, and the inner surface setting of casing has insulating barrier.
Physical absorption device 6 includes purification sorbing material, and it is pure that purification sorbing material includes activated carbon, nanometer ore deposit crystalline substance, diatom With the one or more in the basket of Mayan, and it is arranged to cellular.
The utility model first passes around roughing efficiency air filter into air of the present utility model when in use, by air inlet 11 2 filterings, filter out and be more than impurity etc. in 10um dust granule, hair and air in air.In being entered by the air of prefiltration Filter 3 is imitated, filters out the airborne suspended particle of more than 1um in air.Air after first medium air filtration enters anion Railway carriage or compartment occurs for device, and dust granule in the air in railway carriage or compartment less than 1um occurs to entering, poisonous has for anion caused by anion generator Evil material is degraded, and using its own caused anion, is divided into large, medium and small ion by the big I of its mobility.Small ion Oxygen content increase in human body blood can be made after electronegative particulate gets in and sucked by human body in air, it is defeated to be advantageous to blood oxygen Send, absorb and utilize, have and promote human metabolism, improve human immunological competence, strengthen human body flesh energy.
The utility model can monitor by roughing efficiency air filter 2 of the present utility model, medium effeciency filter 3 and efficient mistake at any time The pressure of air intake and outlet air surface both sides air when filter 5 is run, when pressure at both sides difference is higher than setting value, alarm work is reminded User changes or cleaning filter, while by the presentation of information on the touchscreen.
The various sensors that the utility model is arranged at air quality acquisition module monitor indoor PM2.5, PM10, first in real time The content of aldehyde and TVOC, and real-time Transmission to processing module in touch-screen real-time display, can also be transmitted by WiFi module To the mobile terminal of user.
During the utility model normal work, air pressure probe detects that the air pressure passed through is less than setting value, carries Show cleaning or change filter.Central controller uses open communications protocol, can be with central data processor or intelligence Can house system connection.The setting of real-time data acquisition and central controller that the utility model passes through each sensor, can Automatically (field control can also be carried out by touch-screen, WiFi module can connect with user's LAN or by WiFi remote controls Connect, user can download exclusive APP with software by internet access user's LAN by internet terminal equipment, look into real time Ask and running status be set, while user can carry out remote control) running status of central air conditioner system is (refrigeration, heating, logical Wind or shutdown) and air purifier operation, to reach the optimum state of indoor air quality and oxygen concentration.
In air, after anion is combined with bacterium, bacterium is produced the change of structure or the transfer of energy, cause bacterium dead Die, most final decline is sunk.Air after processing enters high efficiency particulate air filter 5, and 0.3-5um air floating thing is filtered out through high efficiency particulate air filter 5 And poisonous and harmful substance, the air after the purification of high efficiency particulate air filter 5 enter physical absorption device 6, physical absorption device 6 is to remnants Formaldehyde, TVOC poisonous and harmful substances are filtered again.It is allowed to obtain excellent air, finally by motor 8 and impeller sets Part 7 is sent into heat exchanger 9, and the air after being handled by heat exchange is sent to room.The circulation so to go round and begin again, reach refrigeration, heating And purification of air, the purpose of disinfection.
In summary, the utility model can effectively filter out the PM2.5 and formaldehyde, carbon monoxide, dioxy in room environment Change sulphur, hydrocarbon etc., reach purification of air, the purpose of heating refrigeration, and the utility model uses integral structure, is not required to Secondary assembling is wanted, convenience in transport, installation and saving use space and cost.

Claims (10)

  1. A kind of 1. fan coil units with air-cleaning function, it is characterised in that:Including cabinet (1) and Detection of Air Quality System (10), the both ends of the cabinet (1) are respectively arranged with air inlet (11) and air outlet (12);The air inlet (11) and go out High efficiency particulate air filter (5), physical absorption device (6), Air pressurizer and heat exchanger (9) are disposed between air port (12), Roughing efficiency air filter (2), medium effeciency filter (3), anion are disposed between the air inlet (11) and high efficiency particulate air filter (5) At least one of generation case (4);
    The air quality detection system (10) includes single-chip microcomputer, the sensor cluster being connected with the single-chip microcomputer input, And touch-screen, alarm, WiFi module and the central air-conditioning processing system being connected with the single-chip microcomputer output.
  2. 2. the fan coil units according to claim 1 with air-cleaning function, it is characterised in that:The air increases Pressure device includes motor (8), and the impeller assembly (7) being connected with the motor (8).
  3. 3. the fan coil units according to claim 1 with air-cleaning function, it is characterised in that:The sensor Component includes air pressure probe, PM2.5 monitorings sensor, oxygen concentration detection sensor, PM10 monitorings sensor, formaldehyde Sensor and TVOC monitoring sensors are monitored, and monitors sensor, oxygen with the air pressure probe, PM2.5 respectively The signal amplification that concentration detection sensor, PM10 monitorings sensor, Formaldehyde sensor are connected with TVOC monitoring sensors Device and A/D converter, each A/D converter are all connected with the single-chip microcomputer.
  4. 4. the fan coil units according to claim 3 with air-cleaning function, it is characterised in that:The air pressure Force snesor is arranged on air intake and outlet air surface on the roughing efficiency air filter (2), medium effeciency filter (3) and high efficiency particulate air filter (5).
  5. 5. the fan coil units according to claim 1 with air-cleaning function, it is characterised in that:The air matter Amount detection systems (10) also include keyboard, and the keyboard connects the single-chip microcomputer, USB interface is additionally provided with the single-chip microcomputer.
  6. 6. the fan coil units according to claim 1 with air-cleaning function, it is characterised in that:It is described just to imitate Filter (2) includes the first housing and is arranged on the filtering material of the described first outer inframe, and the material of first housing is closed for aluminium Gold or steel wire metal, the filtering material include nylon wire and/or non-woven fabrics.
  7. 7. the fan coil units according to claim 1 with air-cleaning function, it is characterised in that:Imitated in described Filter (3) includes the second housing, and V-type is folded in the non-woven fabrics and fiber cloth of the described second outer inframe, second housing Material be aluminium alloy.
  8. 8. the fan coil units according to claim 1 with air-cleaning function, it is characterised in that:The anion Generation case (4) includes anion generator, emitting head and modular casing, and the ozone being arranged on the modular casing Monitor sensor;The anion generator is placed in the casing and connects the emitting head, and the emitting head is into geometry battle array Row pattern is in one line on the casing;The ozone monitoring sensor connects the input of the single-chip microcomputer, it is described bear from Electronic generator connects the output end of the single-chip microcomputer;The material of the casing is metal, and the inner surface setting of the casing has absolutely Edge layer.
  9. 9. the fan coil units according to claim 1 with air-cleaning function, it is characterised in that:The efficient mistake Filter (5) includes the 3rd housing, and is folded in the nano combined filter material of the 3rd outer inframe, the material of the 3rd housing For aluminium alloy.
  10. 10. the fan coil units according to claim 1 with air-cleaning function, it is characterised in that:The physics Adsorbent equipment (6) includes purification sorbing material, and the purification sorbing material includes activated carbon, nanometer ore deposit crystalline substance, the pure and mild Mayan of diatom One or more in basket, and be arranged to cellular.
CN201720625941.3U 2017-06-01 2017-06-01 A kind of fan coil units with air-cleaning function Expired - Fee Related CN206831685U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN201720625941.3U CN206831685U (en) 2017-06-01 2017-06-01 A kind of fan coil units with air-cleaning function

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108679750A (en) * 2018-05-30 2018-10-19 上海粤海大酒店有限公司 A kind of hotel's air monitering and purification total management system
CN110237709A (en) * 2019-07-10 2019-09-17 中威新能源(成都)有限公司 Method for inhibiting oxidation of silicon wafer surface based on solar cell manufacturing process
CN110694421A (en) * 2018-07-10 2020-01-17 江苏旌翔建材科技有限公司 Adsorption device and method for organic volatile gas
CN110813018A (en) * 2018-08-08 2020-02-21 江苏旌翔建材科技有限公司 High-efficiency organic volatile gas adsorption device and method
CN111473436A (en) * 2020-04-23 2020-07-31 河南江扬机电设备安装有限公司 Fresh air purification central air conditioning unit with double filtration
CN111765529A (en) * 2020-07-06 2020-10-13 珠海格力电器股份有限公司 Fan coil, air conditioner and cleaning method of filter screen
CN113647331A (en) * 2021-07-26 2021-11-16 深圳市万维空调净化工程有限公司 Multifunctional air treatment system for animal husbandry
CN114791148A (en) * 2022-04-25 2022-07-26 江苏一器电气科技有限公司 Constant temperature and humidity control system for purifying air conditioner
CN117416665A (en) * 2023-09-07 2024-01-19 中山新诺科技股份有限公司 A silicon wafer conveying device and exposure system
WO2024031432A1 (en) * 2022-08-10 2024-02-15 张凯天 Air filter for production workshop

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108679750A (en) * 2018-05-30 2018-10-19 上海粤海大酒店有限公司 A kind of hotel's air monitering and purification total management system
CN110694421A (en) * 2018-07-10 2020-01-17 江苏旌翔建材科技有限公司 Adsorption device and method for organic volatile gas
CN110813018A (en) * 2018-08-08 2020-02-21 江苏旌翔建材科技有限公司 High-efficiency organic volatile gas adsorption device and method
CN110237709A (en) * 2019-07-10 2019-09-17 中威新能源(成都)有限公司 Method for inhibiting oxidation of silicon wafer surface based on solar cell manufacturing process
CN111473436A (en) * 2020-04-23 2020-07-31 河南江扬机电设备安装有限公司 Fresh air purification central air conditioning unit with double filtration
CN111765529A (en) * 2020-07-06 2020-10-13 珠海格力电器股份有限公司 Fan coil, air conditioner and cleaning method of filter screen
CN111765529B (en) * 2020-07-06 2024-04-16 珠海格力电器股份有限公司 Cleaning method for fan coil, air conditioner and filter screen
CN113647331A (en) * 2021-07-26 2021-11-16 深圳市万维空调净化工程有限公司 Multifunctional air treatment system for animal husbandry
CN114791148A (en) * 2022-04-25 2022-07-26 江苏一器电气科技有限公司 Constant temperature and humidity control system for purifying air conditioner
WO2024031432A1 (en) * 2022-08-10 2024-02-15 张凯天 Air filter for production workshop
CN117416665A (en) * 2023-09-07 2024-01-19 中山新诺科技股份有限公司 A silicon wafer conveying device and exposure system

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Effective date of registration: 20190710

Address after: 610051 Chenghua District, Chengdu City, Sichuan Province, No. 88, No. 1 Building 6, No. 11, No. 3, Jianbei Road

Patentee after: Sichuan Huacheng Mechanical and Electrical Equipment Co., Ltd.

Address before: 610000 No. 5, 14th Floor, No. 666 Jincheng Avenue, Chengdu High-tech Zone, Sichuan Province

Patentee before: Chengdu Huanyu Lvzhou Environmental Technology Co Ltd

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Granted publication date: 20180102

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CF01 Termination of patent right due to non-payment of annual fee