CN208161820U - For the high-pressure electrostatic air cleaning unit in central air-conditioning guard system - Google Patents
For the high-pressure electrostatic air cleaning unit in central air-conditioning guard system Download PDFInfo
- Publication number
- CN208161820U CN208161820U CN201821169416.6U CN201821169416U CN208161820U CN 208161820 U CN208161820 U CN 208161820U CN 201821169416 U CN201821169416 U CN 201821169416U CN 208161820 U CN208161820 U CN 208161820U
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- Prior art keywords
- electrostatic
- air
- outline border
- electrostatic module
- module
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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.)
- Withdrawn - After Issue
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- 238000004140 cleaning Methods 0.000 title claims abstract description 28
- 238000004378 air conditioning Methods 0.000 title claims abstract description 14
- 238000005192 partition Methods 0.000 claims abstract description 16
- 238000003780 insertion Methods 0.000 claims abstract description 13
- 230000037431 insertion Effects 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Electrostatic Separation (AREA)
Abstract
The utility model relates to a kind of high-pressure electrostatic air cleaning units in central air-conditioning guard system, including hollow outer frame, electrostatic module, electric-control board and switch, outline border has air inlet and air outlet, outline border side is equipped with installing port, capping is equipped at installing port, electric-control board is located in capping, the partition of upper and lower two placement spaces will be divided by being equipped in the middle part of outline border in outline border, the corresponding bottom wall of each placement space and roof are equipped with the first guide groove, the multiple electrostatic modules of equal card insertion in each first guide groove, two neighboring electrostatic module electrical connection in same placement space, electric-control board includes upper control panel and lower control panel, upper control panel and lower control panel are electrically connected with corresponding electrostatic module respectively, air-flow enters from air inlet to be discharged after electrostatic module from gas outlet.By the way that partition is arranged, two placement spaces up and down will be separated into outline border, electrostatic module is inserted in the first guide groove by the first guide groove of setting, convenient for disassembly and assembly, easy positioning.
Description
Technical field
The utility model relates to technical field of central air, and in particular to a kind of height in central air-conditioning guard system
Press electrostatic air cleaning device.
Background technique
Air cleaning unit is usually installed in central air-conditioning guard system, to purify the air of a room.
Such as application No. is the Chinese utility models of 201120057935.5 (notification number CN202037071U) to disclose
《A kind of electrostatic dedusting device for brand new air processing unit》, which includes base framework, HV generator, dust
Grid frame, upper cover plate and base supports frame etc., base framework include high-field electrode silk screen, grid and side plate；Grid is mounted on base
The front and back two sides of seat frame, and connect with ground wire；Side plate is located at the two sides of the base framework, and the inside of side plate is equipped with more
To groove, dust-collecting net gratings is inserted into respectively in corresponding groove；High-field electrode silk screen is between dust-collecting net gratings, and and high pressure
The high-voltage electricity of electrostatic generator extremely connects；HV generator is located at by the side plate of base framework.
In above-mentioned patent, air is entered after all-fresh air processing unit by gauze screen to be inhaled by the anion in dust-collecting net gratings
Attached to achieve the purpose that dedusting, dust removing effects are significant, and structure is simple, small in size.But in above-mentioned patent, dust-collecting net gratings insertion side
It is inaccurate that positioning is easy in the groove of plate, when installation.In addition, in the prior art, it is often through fastener that electrostatic module is (i.e. above-mentioned
The components such as the dust-collecting net gratings in patent) it is fixed on outline border (base framework in i.e. above-mentioned patent), then will by fastener
Outline border is fixed on the tube wall of air hose；Or electrostatic module is directly anchored on the tube wall of air hose by fastener.Because of electrostatic
Module is fixed on the tube wall of air hose by fastener or is fixed on outline border, when installing in this way, needs tightening fastener parts；Cleaning or
It when replacement, needs to disassemble entire outline border together with electrostatic module, then by can just remove electrostatic after loosening fasteners
Module, the installation and removal of electrostatic module are inconvenient.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of electrostatic module dismounting side for the above-mentioned prior art
Just, it is easy positioning and the high-pressure electrostatic air cleaning unit being used in central air-conditioning guard system convenient to overhaul.
The utility model solves technical solution used by above-mentioned technical problem：One kind being used for central air-conditioning guard system
In high-pressure electrostatic air cleaning unit, including hollow outline border, the multiple electrostatic modules being shelved in outline border, with electrostatic module
The electric-control board of electrical connection and the switch being connected with electric-control board, the rear and front end of the outline border be respectively provided with connect with air hose into
Port and gas outlet, it is characterised in that：The side of the outline border is equipped with installing port, removable lining at installing port to be equipped with to close
The capping of installing port, electric-control board are arranged in capping, are equipped with partition in the middle part of the outline border, which will be separated into outline border
Upper and lower two placement spaces, the corresponding bottom wall of each placement space and roof are equipped with the first guide groove, and the electrostatic module is logical
Cross the installing port be put into and card insertion in first guide groove, the equal multiple electrostatic moulds of card insertion in each first guide groove
Block, the two neighboring electrostatic module in same placement space is electrically connected to by each electrostatic block coupled in series, described
Electric-control board includes the upper control panel being electrically connected and lower control panel, upper control panel and lower control panel respectively with
Electrostatic module in corresponding placement space near installing port is electrically connected, and the air-flow in air hose enters from air inlet, by described
It is discharged after electrostatic module from the gas outlet.
It dismounts and is more convenient compared to by conducting wire rigid connection with disassembly in order to facilitate the installation of, each described electrostatic module
Be left side setting elastic contact chip and right side setting contact portion or each described electrostatic module be left side setting contact
Portion and right side are arranged elastic contact chip, and two neighboring electrostatic module passes through the elastic contact chip of one of electrostatic module and another
The contact portion of a electrostatic module interconnects and forms electrical connection.
In order to enable the appropriate deformation of elastic contact chip and be in close contact with contact portion, while preventing elastic contact chip excessive
It compresses and damages, four corners are equipped with a top on one of end face of the two neighboring end face of two neighboring electrostatic module
Four corners are also equipped with a top pillar on one of end face of the two neighboring end face of column, electric-control board and electrostatic module,
The top pillar makes to reserve the space for supplying the elastic contact chip diastole between two neighboring end face.
Dust removing effects in order to further increase, be provided in each placement space close to the air inlet and with it is described quiet
The opposite filter screen of electric module.
In order to which air-flow is steady, air-flow is uniformly across each filter screen and each electrostatic module, so that each filter screen and each
A electrostatic module utilization is suitable, avoids because air quantity is uneven so that intermediate filter screen and electrostatic module utilization it is high and two
The filter screen and electrostatic module utilization of side are low, lead to intermediate filter screen and electrostatic module rapid wear, the filter screen and described
Air inlet spatial cache is formed with inside outline border between air inlet, which makes the air-flow entered uniformly through each
A filter screen and each electrostatic module.
In order to be oriented to, so that filter screen is quickly installed to fixed position, while put multiple filter screens orderly, often
The corresponding bottom wall of a placement space and side wall are provided with the second guide groove, and second guide groove is for filter screen described in card insertion.
In order to which high-pressure electrostatic air cleaning unit to be fixed in air hose, on the corresponding mouth wall of the air inlet or/and institute
It states and is outward extended with installation sheet on the corresponding mouth wall in gas outlet, the installation sheet is provided with mounting hole, and fastener passes through the peace
Dress mutually fixes the tube wall of the outline border and air hose behind hole.
It further include support column in order to which partition to be connected firmly in the middle part of outline border, it is by support column that outline border is mutually solid with partition
It is fixed, so that the partition is fixed in the middle part of outline border.
Compared with prior art, the utility model has the advantage of：By the way that partition is arranged, upper and lower two will be separated into outline border
A placement space, the bottom wall and side wall of placement space are equipped with the first guide groove, and electrostatic module is put into and is blocked by installing port
It is inserted in the first guide groove, it is convenient for disassembly and assembly, it is easy positioning, when maintenance, only need to remove capping, it can be by electrostatic module from outline border
Taking-up is overhauled, without disassembling entire outline border from air-line system together with electrostatic module.In improved plan
In, it is connected by setting elastic contact chip and contact portion, compared to by conducting wire rigid connection, dismounting is more convenient；By setting
Top set column so that the appropriate deformation of elastic contact chip and be in close contact with contact portion, while elastic contact chip being prevented to be overly compressed
And it damages；Filter screen is set at air inlet and filter screen is not provided at gas outlet, to reduce to increase dust removing effects
The resistance of outlet；Filter screen has air inlet spatial cache apart from air inlet, so that air-flow is uniformly through each filter screen and each
Electrostatic module, in this way, each filter screen and each electrostatic module utilization are suitable；By the way that the second guide groove is arranged, facilitate mistake
Strainer Fast Installation and put orderly；By setting installation sheet and mounting hole, convenient for outline border is mounted on the tube wall of air hose；It is logical
Support column connecting partition and outline border are crossed, is connected firmly.
Detailed description of the invention
Fig. 1 is that the utility model embodiment is mounted on the schematic diagram in central air-conditioning guard system；
Fig. 2 is the enlarged drawing of local I in Fig. 1；
Fig. 3 is the exploded view of the utility model embodiment；
Fig. 4 is electrostatic module, electric-control board and the exploded view of capping in the utility model embodiment；
Fig. 5 is the exploded view of electrostatic module in Fig. 4；
Fig. 6 is the schematic diagram of another angle of Fig. 4；
Fig. 7 is the schematic diagram of electrostatic module in Fig. 6；
Fig. 8 is outline border (eliminating the side wall at outline border installing port) in the utility model embodiment, partition and support column
Schematic diagram；
Fig. 9 is the schematic diagram that the utility model embodiment is mounted with an electrostatic module and a filter screen；
Figure 10 is that Fig. 9 removes the schematic diagram after electrostatic module；
Figure 11 is that Fig. 9 removes the schematic diagram after filter screen.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
For ease of description, hereinafter, "upper", "lower" refer both to corresponding orientation when user's operation.
As shown in Fig. 1~Figure 11, this is used for the high-pressure electrostatic air cleaning unit in central air-conditioning guard system, including in
Empty outline border 1, the multiple electrostatic modules 3 being shelved in outline border 1, the electric-control board 4 being electrically connected with electrostatic module 3 and with automatically controlled face
The inside of the connected switch 5 of plate 4, electrostatic module 3 has electrostatic precipitation structure, can also there is other purification devices certainly, such as purple
Outer lamp, nano-photo catalytic etc..The rear and front end of the outline border 1 is respectively provided with the air inlet 12 connecting with air hose and gas outlet 13, outside
The side of frame 1 is equipped with installing port 11, the removable lining capping 8 being equipped with to close installing port 11 at installing port 11, electric-control board 4
Setting is equipped with partition 2 in capping 8 in the middle part of outline border 1, which will be separated into two placement spaces up and down in outline border 1, often
The corresponding bottom wall of a placement space and roof are equipped with the first guide groove 21, and electrostatic module 3 is put into and is blocked by the installing port 11
It is inserted in the first guide groove 21, the multiple electrostatic modules 3 of equal card insertion in each first guide groove 21, in same placement space
Two neighboring electrostatic module 3 is electrically connected to connect each electrostatic module 3, and electric-control board 4 includes being electrically connected
Upper control panel 4a and lower control panel 4b, upper control panel 4a and lower control panel 4b respectively in corresponding placement space most
Electrostatic module 3 close to installing port 11 is electrically connected, and the air-flow in air hose enters from air inlet 12, by after electrostatic module 3 from going out
Port 13 is discharged.In the present embodiment, equal 3 electrostatic modules 3 of card insertion in each first guide groove 21.The present embodiment further includes branch
Dagger 6 is fixed outline border 1 and 2 phase of partition by support column 6, so that partition 2 is fixed on 1 middle part of outline border.In the present embodiment
In, support column 6 has 8.
Referring to fig. 4~Fig. 7, each electrostatic module 3 is left side setting elastic contact chip 31 and contact portion is arranged in right side
32 or each electrostatic module 3 be left side setting contact portion 32 and right side setting elastic contact chip 31, two neighboring electrostatic
Module 3 is interconnected by the elastic contact chip 31 of one of electrostatic module 3 and the contact portion 32 of another electrostatic module 3
Form electrical connection.In addition, four corners are equipped on one of end face of the two neighboring end face of two neighboring electrostatic module 3
One top pillar 33, electric-control board 4 are also equipped with four corners on one of end face of the two neighboring end face of electrostatic module 3
One top pillar 33, top pillar 33 make to reserve the space for 31 diastole of elastic contact chip between two neighboring end face.In the present embodiment, often
One electrostatic module 3 is square, each electrostatic module 3 is left side setting elastic contact chip 31 and contact portion is arranged in right side
32, four corners are equipped with a top pillar 33 in the right end face of each electrostatic module 3, and top pillar 33, which is arranged at, is equipped with contact
On the end face in portion 32.
It is provided in each placement space close to air inlet 12 and the filter screen 7 opposite with electrostatic module 3.In this implementation
In example, filter screen 7 also has 6 pieces, is formed with air inlet spatial cache 71 inside the outline border 1 between filter screen 7 and air inlet 12, should
Air inlet spatial cache 71 makes the air-flow entered uniformly through each filter screen 7 and each electrostatic module 3.Each placement space pair
The bottom wall and side wall answered are provided with the second guide groove 22, which is used for card insertion filter screen 7.
In addition, the present embodiment further includes positioned at the capping 8 electric-control board 4 outside and be interlocked with electric-control board 4.Air inlet
It is outward extended with installation sheet 14 on 12 corresponding mouthfuls of walls of mouth or/and on the wall of 13 corresponding mouthfuls of gas outlet, installation sheet 14 is provided with peace
Hole 15 is filled, mutually fixes outline border 1 and the tube wall of air hose after fasteners through mounting holes 15.In the present embodiment, air inlet 12 is right
Installation sheet 14 is outward extended on the mouth wall answered and on the wall of 13 corresponding mouthfuls of gas outlet.
In the present embodiment, the use principle for being used for the high-pressure electrostatic air cleaning unit in central air-conditioning guard system
It is as follows：
When installation, referring to Fig. 1,2 sunpenders 92 of stationary phase pair, are fixed air-line system by angle steel 93 on floor 91
On sunpender 92.By 3 card insertion of electrostatic module in the first guide groove 21, adjacent electrostatic module 3 is by elastic contact chip 31 and connects
Contact portion 32 is connected to.By 7 card insertion of filter screen in the second guide groove 22.Then, outline border 1 is put into central air-conditioning guard system,
Air hose can be fresh air duct, and being also possible to return airway, (arrow A indicates air-flow approach axis in fresh air duct, Fig. 1 in Fig. 1
Middle arrow B indicates air-flow approach axis in return airway, and arrow C indicates that central air-conditioning direction is discharged in air-flow in Fig. 1), outline border 1 with
Sealing strip 94 is set between the tube wall of air hose, outline border 1 is connected with the tube wall of air hose after fasteners through mounting holes 15.In this reality
Apply in example, the tube wall of outline border 1 and fresh air duct entrance, the tube wall of fresh air duct outlet, return airway entrance tube wall, return air wind
The tube wall of road outlet passes through sealing strip 94 and connects.Then, electric-control board 4 is connected with electrostatic module 3.Finally, will 8 button of capping
It closes on electric-control board 4.
First outline border 1 can certainly be installed in central air-conditioning guard system, then electrostatic module 3 and filter screen 7 are filled
Enter outline border 1, finally fixes electric-control board 4 and capping 8.
When needing to run, 5 are turned on the switch, which brings into operation.Fresh air or return air stream (figure
3, arrow D indicates that air-flow enters high-pressure electrostatic air cleaning dress in fresh air duct or return airway in Fig. 4, Fig. 6, Fig. 8~Figure 11
The direction set) from air inlet 12 enter the air inlet spatial cache 71 between air inlet 12 and filter screen 7, the air inlet spatial cache
71 make air-flow steady, and air quantity is uniformly through each filter screen 7 and each electrostatic module 3.Then, in air inlet spatial cache 71
Fresh air or return air are discharged after passing through electrostatic module 3 from gas outlet 13.
When needing to dismantle, such as when needing repairing or cleaning, 5 are turned off the switch, capping 8 and electric-control board 4 are removed, by electrostatic
Module 3 is taken out from the first guide groove 21, and filter screen 7 is taken out from the second guide groove 22.
High-pressure electrostatic air cleaning unit continuously filters a variety of particulate pollutants from air in operation, these particles are dirty
Dye object is attached in electronics dust accumulation unit therein and filter screen 7.When pollutant excess, high-pressure electrostatic air cleaning can be made to fill
The efficiency of dust collection set reduces.For the high efficiency for safeguarding air cleaning unit, need periodically to be maintained cleaning.When cleaning,
After dismantling according to above-mentioned steps, filter screen 7 and electrostatic module 3 are placed into cleaning area.It can be robbed with Handheld high-voltage air or hand
It holds formula giant to be rinsed filter screen 7 and electrostatic module 3, but needs to pay attention to and avoid damage of the hypertonia to equipment.
After the completion of flushing, the cleaning of water mist is carried out to filter screen 7 and electrostatic module 3 with hand-held high pressure air rifle, it is cool to place clean ventilation
It is dry.Finally, first determination has been dried before filter screen 7 and electrostatic module 3 are reinstalled, no short circuit phenomenon, according still further to above-mentioned steps
It is installed.
Claims (8)
1. a kind of high-pressure electrostatic air cleaning unit in central air-conditioning guard system is shelved including hollow outline border (1)
Multiple electrostatic modules (3) in outline border (1), the electric-control board (4) being electrically connected with electrostatic module (3) and with electric-control board (4)
Connected switch (5), the rear and front end of the outline border (1) are respectively provided with the air inlet (12) connecting with air hose and gas outlet (13),
It is characterized in that：The side of the outline border (1) is equipped with installing port (11), removable lining at installing port (11) to be equipped with to close peace
The capping (8) of mouth (11) is filled, electric-control board (4) is arranged on capping (8), is equipped with partition (2) in the middle part of the outline border (1), should
Partition (2) will be separated into two placement spaces up and down in outline border (1), and the corresponding bottom wall of each placement space and roof are equipped with the
One guide groove (21), the electrostatic module (3) is put by the installing port (11) and card insertion is in first guide groove (21),
The equal multiple electrostatic modules (3) of card insertion, two neighboring quiet in same placement space in each first guide groove (21)
Electric module (3) is electrically connected to which each electrostatic module (3) be connected, and the electric-control board (4) includes being electrically connected
Upper control panel (4a) and lower control panel (4b), upper control panel (4a) and lower control panel (4b) are placed with corresponding respectively
It is electrically connected in space near the electrostatic module (3) of installing port (11), the air-flow in air hose enters from air inlet (12), passes through institute
It is discharged after stating electrostatic module (3) from the gas outlet (13).
2. high-pressure electrostatic air cleaning unit according to claim 1, it is characterised in that：Each described electrostatic module
(3) it is left side setting elastic contact chip (31) and right side setting contact portion (32) or each described electrostatic module (3) are equal
For left side setting contact portion (32), elastic contact chip (31) are arranged in right side, and two neighboring electrostatic module (3) passes through one of them
The elastic contact chip (31) of electrostatic module (3) and the contact portion (32) of another electrostatic module (3) interconnect and are formed and be electrically connected
It connects.
3. high-pressure electrostatic air cleaning unit according to claim 2, it is characterised in that：Two neighboring electrostatic module (3)
Two neighboring end face one of end face on four corners be equipped with a top pillar (33), electric-control board (4) and electrostatic mould
Four corners are also equipped with a top pillar (33), the top pillar (33) on one of end face of the two neighboring end face of block (3)
Make to reserve the space for supplying the elastic contact chip (31) diastole between two neighboring end face.
4. high-pressure electrostatic air cleaning unit according to claim 1 or 2 or 3, it is characterised in that：In each placement space
It is provided with close to the air inlet (12) and the filter screen (7) opposite with the electrostatic module (3).
5. high-pressure electrostatic air cleaning unit according to claim 4, it is characterised in that：The filter screen (7) and described
Air inlet spatial cache (71) are formed with inside outline border (1) between air inlet (12), which to enter
Air-flow uniformly through each filter screen (7) and each electrostatic module (3).
6. high-pressure electrostatic air cleaning unit according to claim 4, it is characterised in that：The corresponding bottom of each placement space
Wall and side wall are provided with the second guide groove (22), and second guide groove (22) is for filter screen (7) described in card insertion.
7. high-pressure electrostatic air cleaning unit according to claim 1, it is characterised in that：The air inlet (12) is corresponding
It is outward extended with installation sheet (14) on mouth wall or/and on the gas outlet (13) corresponding mouth wall, installation sheet (14) setting
Have mounting hole (15), fastener mutually fixes the outline border (1) and the tube wall of air hose after passing through the mounting hole (15).
8. high-pressure electrostatic air cleaning unit according to claim 1, it is characterised in that：Further include support column (6), passes through
Support column (6) mutually fixes outline border (1) and partition (2), so that the partition (2) is fixed in the middle part of outline border (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169416.6U CN208161820U (en) | 2018-07-23 | 2018-07-23 | For the high-pressure electrostatic air cleaning unit in central air-conditioning guard system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169416.6U CN208161820U (en) | 2018-07-23 | 2018-07-23 | For the high-pressure electrostatic air cleaning unit in central air-conditioning guard system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208161820U true CN208161820U (en) | 2018-11-30 |
Family
ID=64363624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821169416.6U Withdrawn - After Issue CN208161820U (en) | 2018-07-23 | 2018-07-23 | For the high-pressure electrostatic air cleaning unit in central air-conditioning guard system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208161820U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108787167A (en) * | 2018-07-23 | 2018-11-13 | 宁波艾普罗环保科技有限公司 | For the high-pressure electrostatic air cleaning unit in central air-conditioning guard system |
-
2018
- 2018-07-23 CN CN201821169416.6U patent/CN208161820U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108787167A (en) * | 2018-07-23 | 2018-11-13 | 宁波艾普罗环保科技有限公司 | For the high-pressure electrostatic air cleaning unit in central air-conditioning guard system |
| CN108787167B (en) * | 2018-07-23 | 2024-02-23 | 宁波艾普罗环保科技有限公司 | High-voltage electrostatic air purifying device for central air conditioner air duct system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181130 Effective date of abandoning: 20240223 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181130 Effective date of abandoning: 20240223 |