CN115507542A - Combined air conditioning unit - Google Patents

Combined air conditioning unit Download PDF

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Publication number
CN115507542A
CN115507542A CN202211334229.XA CN202211334229A CN115507542A CN 115507542 A CN115507542 A CN 115507542A CN 202211334229 A CN202211334229 A CN 202211334229A CN 115507542 A CN115507542 A CN 115507542A
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CN
China
Prior art keywords
wall
case
fixedly connected
shell
air conditioning
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.)
Withdrawn
Application number
CN202211334229.XA
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Chinese (zh)
Inventor
李东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yancheng Zhongsheng Environmental Technology Co ltd
Original Assignee
Yancheng Zhongsheng Environmental Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yancheng Zhongsheng Environmental Technology Co ltd filed Critical Yancheng Zhongsheng Environmental Technology Co ltd
Priority to CN202211334229.XA priority Critical patent/CN115507542A/en
Publication of CN115507542A publication Critical patent/CN115507542A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/90—Cleaning of purification apparatus

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention discloses a combined air conditioning unit which comprises a case and a bottom plate, wherein a noise reduction mechanism is arranged at the bottom of the inner wall of the case, a filter screen is movably connected between the front surface and the back surface of the inner wall of the case, a fixing mechanism is arranged on the front surface of the filter screen, the fixing mechanism comprises a sealing plate, the top and the bottom of one side of the front surface of the case are fixedly connected with a shell, the top and the bottom of the other side of the front surface of the case are fixedly connected with mounting plates, and the top of the inner wall of the shell is rotatably connected with a fixing shaft. This combined air conditioning unit drives the worm wheel through rotating the fixed axle and rotates, and the worm wheel drives the dwang through the worm and rotates, and the dwang drives the end of a thread and rotates for the inserted bar rolls out the end of a thread, thereby takes the inserted bar out from the closing plate, can take the filter screen out from quick-witted incasement portion through the closing plate, dismantles simple more swiftly, is convenient for clear up, and the time of cost is shorter, has promoted work efficiency.

Description

Combined air conditioning unit
Technical Field
The invention relates to the technical field of air conditioning units, in particular to a combined air conditioning unit.
Background
The combined air conditioner unit is one kind of air treating apparatus comprising various air treating functional sections. The air purification system is suitable for an air conditioning system with the resistance of more than 100Pa, units such as air mixing, flow equalization, filtration, cooling, primary and secondary heating, dehumidification, humidification, a blower, a return fan, water spraying, noise elimination, heat recovery and the like are arranged in an air processing functional section of a unit, and the air purification system is mainly suitable for various clean plants, such as industrial electronic factories, precision machinery manufacturing factories, textile workshops, automobile spraying workshops, GMP pharmaceutical factories, cosmetics, food factories, pure water workshops, hospital operating departments, ICUs and the like, and can be classified into a horizontal type, a vertical type and a ceiling type according to the structural types; classified according to the characteristics of the purposes, the units can be divided into general units, fresh air handling units, purification units and special units (such as roof units, subway units, computer room special units and the like); the air conditioning unit can be classified according to specifications, and the basic specifications of the unit can be represented by rated air volume.
After the air inlet filtering section of the combined air conditioning unit is used for a long time, a large amount of dust can be attached to the filter screen, the filter screen is easy to block, the working efficiency of the combined air conditioning unit is affected, the unit needs to be opened when the filter screen is cleaned, then the filter screen needs to be detached for cleaning, time and labor are wasted, and the operation is troublesome; when the air conditioning unit works, the fan can vibrate to generate larger noise, so that the service life of the fan is shortened, and meanwhile, the adverse effect is caused on the surrounding environment.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a combined air conditioning unit, which solves the problems that the unit needs to be opened when a filter screen is cleaned, then the filter screen needs to be disassembled for cleaning, time and labor are wasted, the operation is troublesome, and when the air conditioning unit works, a fan vibrates to generate larger noise, so that the service life of the fan is shortened and the surrounding environment is adversely affected.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a modular air conditioning unit, includes quick-witted case and bottom plate, machine incasement wall's bottom is provided with the mechanism of making an uproar that falls, swing joint has the filter screen between machine incasement wall's the front and the back, and the front of filter screen is provided with fixed establishment.
The fixing mechanism comprises a sealing plate, the top and the bottom of one side of the front face of the case are fixedly connected with a shell, the top and the bottom of the other side of the front face of the case are fixedly connected with a mounting plate, the top of the inner wall of the case is connected with a fixed shaft in a rotating mode, the surface of the fixed shaft is fixedly connected with a worm wheel, one side of the inner wall of the case is connected with a rotating rod in a rotating mode, the surface of the rotating rod is fixedly connected with a worm meshed with the worm wheel, one end of the inner wall of the case is far away from a threaded head fixedly connected with the rotating rod, an inserting rod penetrates through the inside of the mounting plate, and a threaded groove matched with the threaded head is formed in one end of the inserting rod.
Preferably, the bottom end of the fixed shaft penetrates through the housing and extends to the outside of the housing, the end of the rotating rod, which is far away from the inner wall of the housing, penetrates through the housing and extends to the outside of the housing, and the end of the inserting rod, which is far away from the mounting plate, penetrates through the sealing plate and extends to the outside of the sealing plate.
Preferably, the back of the sealing plate is movably connected with the front of the case, the back of the sealing plate penetrates through the case and extends into the case, one side of the sealing plate extending into the case is fixedly connected with the front of the filter screen, and the front of the sealing plate is fixedly connected with a handle.
Preferably, the top of the inner wall of the case and the two sides of the bottom of the inner wall of the case are fixedly connected with limiting blocks, the limiting blocks are located on one side of the filter screen, an air inlet is formed in one side of the case, and the noise reduction mechanism is located on one side, away from the air inlet, of the filter screen.
Preferably, the noise reduction mechanism comprises a noise reduction box, the bottom of the noise reduction box is fixedly connected with the bottom of the inner wall of the case, a cavity is formed in the noise reduction box, a sound absorption layer is bonded to one side of the inner wall of the cavity, one side, far away from the inner wall of the cavity, of the sound absorption layer is fixedly connected with a rubber layer, a through hole is formed in the inner wall of the noise reduction box, the through hole is located on one side, far away from the sound absorption layer, of the rubber layer, and a damping mechanism is arranged at the bottom of the inner wall of the noise reduction box.
Preferably, damper includes the casing, the equal fixedly connected with spring in shells inner wall's both sides, two the equal fixedly connected with slider of one end that the spring is relative, and the bottom of slider and shells inner wall's bottom sliding connection, two the top of slider all rotates and is connected with the movable rod.
Preferably, a movable plate is movably connected between two sides of the bottom of the inner wall of the noise reduction box, one end, away from the sliding block, of the movable rod is rotatably connected with the bottom of the movable plate, through grooves matched with the movable rod are formed in two sides of the top of the shell, and a fan is fixedly connected to the top of the movable plate.
Preferably, the positive one side of machine case is seted up with the activity groove of filter screen looks adaptation, the bottom of machine case and the top fixed connection of bottom plate, the equal fixedly connected with rubber landing leg in four corners of bottom plate bottom.
(III) advantageous effects
The invention provides a combined air conditioning unit. The method has the following beneficial effects:
(1) This combined air conditioning unit is provided with fixed establishment through the front of filter screen, drives the worm wheel through rotating the fixed axle and rotates, and the worm wheel drives the dwang through the worm and rotates, and the dwang drives the stub screw and rotates for the stub screw rolls out the stub screw, thereby takes the stub screw out from the closing plate, can take the filter screen out from quick-witted incasement portion through the closing plate, dismantles simple swift more, is convenient for clear up, and the time of cost is shorter, has promoted work efficiency.
(2) This combination formula air conditioning unit is provided with damper through the bottom of making an uproar incasement wall, and the fan is at the during operation, and the fly leaf extrudees the movable rod downwards, and the movable rod drives two slider extrusion springs, under the effort of spring, carries out the shock attenuation buffering to the fan, reduces the noise because of vibrations production when avoiding damaging, avoids the surrounding environment to receive harmful effects.
(3) This combination formula air conditioning unit is provided with the mechanism of making an uproar of falling through machine incasement wall's bottom, and the noise that produces during the fan operation passes through the through-hole and conducts to the rubber layer, and the rubber layer is carried out the bounce-back and is fallen the noise to the noise and fall, and the setting on cooperation sound absorption layer is inhaled the sound and is handled the noise, and the propagation of noise reduction reduces air conditioning unit's noise pollution.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a cross-sectional view of a seal plate structure of the present invention;
FIG. 3 is a top plan view of the worm gear and worm arrangement of the present invention;
FIG. 4 is a side view of a screen construction of the present invention;
FIG. 5 is a front view of the screen construction of the present invention;
FIG. 6 is a side cross-sectional view of a noise attenuation box construction of this invention;
FIG. 7 is an enlarged view of a portion of the invention at A in FIG. 6;
fig. 8 is a partial cross-sectional view of a cavity structure of the present invention.
In the figure: 1 chassis, 2 bottom plates, 3 noise reduction mechanisms, 31 noise reduction boxes, 32 cavities, 33 sound absorption layers, 34 rubber layers, 35 through holes, 36 shock absorption mechanisms, 361 shells, 362 springs, 363 sliders, 364 movable rods, 365 movable plates, 366 through grooves, 4 filter screens, 5 fixing mechanisms, 51 sealing plates, 52 shells, 53 mounting plates, 54 fixing shafts, 55 worm wheels, 56 rotating rods, 57 worms, 58 thread heads, 59 inserting rods, 510 thread grooves, 6 handles, 7 limiting blocks, 8 air inlets, 9 fans, 10 movable grooves and 11 rubber supporting legs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 8, an embodiment of the present invention provides a technical solution: the utility model provides a modular air conditioning unit, includes quick-witted case 1 and bottom plate 2, and the bottom of machine case 1 inner wall is provided with noise reduction mechanism 3, and swing joint has filter screen 4 between the front of machine case 1 inner wall and the back, and the front of filter screen 4 is provided with fixed establishment 5.
The fixing mechanism 5 comprises a sealing plate 51, a shell 52 is fixedly connected to the top and the bottom of one side of the front face of the case 1, a mounting plate 53 is fixedly connected to the top and the bottom of the other side of the front face of the case 1, a fixing shaft 54 is rotatably connected to the top of the inner wall of the shell 52, a worm wheel 55 is fixedly connected to the surface of the fixing shaft 54, a rotating rod 56 is rotatably connected to one side of the inner wall of the shell 52, a worm 57 meshed with the worm wheel 55 is fixedly connected to the surface of the rotating rod 56, a threaded head 58 is fixedly connected to one end of the rotating rod 56, which is far away from the inner wall of the shell 52, an inserting rod 59 penetrates through the inside of the mounting plate 53, a threaded groove 510 matched with the threaded head 58 is formed in one end of the inserting rod 59, and the fixing mechanism 5 is mounted and dismounted so that the filter screen 4 is fixed in the case 1 or pulled out of the case 1.
In the embodiment of the present invention, the bottom end of the fixed shaft 54 penetrates through the housing 52 and extends to the outside of the housing 52, the end of the rotating rod 56 away from the inner wall of the housing 52 penetrates through the housing 52 and extends to the outside of the housing 52, and the end of the inserting rod 59 away from the mounting plate 53 penetrates through the sealing plate 51 and extends to the outside of the sealing plate 51.
In the embodiment of the invention, the back surface of the sealing plate 51 is movably connected with the front surface of the case 1, the movable connection in the technical scheme means that the two structures are in contact with each other but are not fixed, the back surface of the sealing plate 51 penetrates through the case 1 and extends into the case 1, one side of the sealing plate 51 extending into the case 1 is fixedly connected with the front surface of the filter screen 4, the front surface of the sealing plate 51 is fixedly connected with the handle 6, and the handle 6 is convenient for pulling the sealing plate 51.
In the embodiment of the invention, the limiting blocks 7 are fixedly connected to the top and the bottom of the inner wall of the case 1, the limiting blocks 7 limit the position of the filter screen 4, the installation is convenient, the limiting blocks 7 are positioned on one side of the filter screen 4, the air inlet 8 is formed in one side of the case 1, and the noise reduction mechanism 3 is positioned on one side of the filter screen 4 far away from the air inlet 8.
In the embodiment of the invention, the noise reduction mechanism 3 comprises a noise reduction box 31, the bottom of the noise reduction box 31 is fixedly connected with the bottom of the inner wall of the case 1, a cavity 32 is formed in the noise reduction box 31, a sound absorption layer 33 is bonded on one side of the inner wall of the cavity 32, the sound absorption layer 33 is made of glass fiber and has a good sound absorption effect, a rubber layer 34 is fixedly connected on one side, away from the inner wall of the cavity 32, of the sound absorption layer 33, the rubber layer 34 can rebound noise, through holes 35 are formed in the inner wall of the noise reduction box 31, a plurality of the through holes 35 are uniformly distributed on the periphery of the inner wall of the noise reduction box 31, the through holes 35 are located on one side, away from the sound absorption layer 33, of the rubber layer 34, and a damping mechanism 36 is arranged at the bottom of the inner wall of the noise reduction box 31.
In the embodiment of the present invention, the damping mechanism 36 includes a housing 361, two sides of an inner wall of the housing 361 are both fixedly connected with springs 362, one ends of the two springs 362 are both fixedly connected with sliders 363, the bottoms of the sliders 363 are slidably connected with the bottom of the inner wall of the housing 361, and the tops of the two sliders 363 are both rotatably connected with movable rods 364.
In the embodiment of the present invention, a movable plate 365 is movably connected between two sides of the bottom of the inner wall of the noise reduction box 31, one end of a movable rod 364 away from the slider 363 is rotatably connected to the bottom of the movable plate 365, through slots 366 adapted to the movable rod 364 are respectively formed on two sides of the top of the housing 361, the damping mechanism 36 damps the fan 9, so as to reduce noise caused by vibration while avoiding damage, and avoid adverse effects on the surrounding environment, the fan 9 is fixedly connected to the top of the movable plate 365, and the fan 9 is controlled by an external switch and connected to an external power supply through a wire.
In the embodiment of the invention, one side of the front surface of the case 1 is provided with a movable groove 10 matched with the filter screen 4, the bottom of the case 1 is fixedly connected with the top of the bottom plate 2, and four corners of the bottom plate 2 are fixedly connected with rubber supporting legs 11.
And those not described in detail in this specification are well within the skill of those in the art.
When the device is used, the fixed shaft 54 is rotated, the fixed shaft 54 drives the worm wheel 55 to rotate, the worm wheel 55 drives the rotating rod 56 to rotate through the worm 57, the rotating rod 56 drives the threaded head 58 to rotate, the threaded head 58 rotates, the inserting rod 59 is pulled towards the outside of the threaded head 58, the inserting rod 59 rotates out of the threaded head 58, the inserting rod 59 is pulled out of the sealing plate 51, then the handle 6 is held, the sealing plate 51 is pulled, the filter screen 4 can be pulled out of the case 1 to be cleaned, the filter screen 4 is reinserted into the case 1 after being cleaned, the fixing mechanism 5 can be fixed by reverse operation, the position of the filter screen 4 is limited by the limiting block 7, and when the fan 9 in the unit operates, the movable plate 365 receives vibration, the movable plate 365 downwards extrudes the movable rod 364, the movable rod 364 drives the two sliders 363 to move relatively, under the elastic force of the spring 362, the vibration generated by the fan 9 is absorbed, the fan 9 is damped, noise generated due to vibration is reduced, meanwhile, the noise generated during operation of the fan 9 is conducted to the rubber layer 34 through the through hole 35, the rubber layer 34 rebounds and reduces noise, the noise is absorbed by the matching sound absorption layer 33, the noise is reduced, the noise is transmitted, the whole air conditioning unit can be damped through the rubber support legs 11 under the bottom plate 2, and noise pollution generated due to vibration is reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a modular air conditioning unit, includes quick-witted case (1) and bottom plate (2), its characterized in that: the noise reduction mechanism (3) is arranged at the bottom of the inner wall of the case (1), a filter screen (4) is movably connected between the front and the back of the inner wall of the case (1), and a fixing mechanism (5) is arranged on the front of the filter screen (4);
fixing mechanism (5) include closing plate (51), top and the equal fixedly connected with shell (52) in bottom of the positive one side of machine case (1), the top and the equal fixedly connected with mounting panel (53) in bottom of the positive opposite side of machine case (1), the top of shell (52) inner wall is rotated and is connected with fixed axle (54), and the fixed surface of fixed axle (54) is connected with worm wheel (55), one side of shell (52) inner wall is rotated and is connected with dwang (56), and the fixed surface of dwang (56) is connected with worm (57) with worm wheel (55) engaged with, the one end fixedly connected with thread head (58) of shell (52) inner wall is kept away from in dwang (56), inserted bar (59) have been run through to the inside of mounting panel (53), thread groove (510) with thread head (58) looks adaptation are seted up to the one end of inserted bar (59).
2. The modular air conditioning unit of claim 1, wherein: the bottom end of the fixed shaft (54) penetrates through the shell (52) and extends to the outside of the shell (52), the end, away from the inner wall of the shell (52), of the rotating rod (56) penetrates through the shell (52) and extends to the outside of the shell (52), and the end, away from the mounting plate (53), of the inserting rod (59) penetrates through the sealing plate (51) and extends to the outside of the sealing plate (51).
3. A modular air conditioning unit according to claim 1, characterised in that: the back of the sealing plate (51) is movably connected with the front of the case (1), the back of the sealing plate (51) penetrates through the case (1) and extends into the case (1), one side of the sealing plate (51) extending into the case (1) is fixedly connected with the front of the filter screen (4), and the front of the sealing plate (51) is fixedly connected with a handle (6).
4. The modular air conditioning unit of claim 1, wherein: machine case (1) inner wall top and the equal fixedly connected with stopper (7) in both sides of bottom, and stopper (7) are located one side of filter screen (4), air intake (8) have been seted up to one side of machine case (1), it is located one side that air intake (8) were kept away from in filter screen (4) to fall mechanism (3) of making an uproar.
5. A modular air conditioning unit according to claim 1, characterised in that: noise reduction mechanism (3) are including noise reduction box (31), the bottom of noise reduction box (31) and the bottom fixed connection of quick-witted case (1) inner wall, cavity (32) have been seted up to noise reduction box (31) inside, and one side of cavity (32) inner wall bonds and has sound absorbing layer (33), one side fixedly connected with rubber layer (34) of cavity (32) inner wall are kept away from to sound absorbing layer (33), through-hole (35) have been seted up to noise reduction box (31) inner wall, through-hole (35) are located rubber layer (34) and keep away from one side of sound absorbing layer (33), noise reduction box (31) inner wall's bottom is provided with damper (36).
6. The modular air conditioning unit of claim 5, wherein: the damping mechanism (36) comprises a shell (361), springs (362) are fixedly connected to two sides of the inner wall of the shell (361), sliders (363) are fixedly connected to two opposite ends of the springs (362), the bottoms of the sliders (363) are connected with the bottom of the inner wall of the shell (361) in a sliding mode, and movable rods (364) are rotatably connected to the tops of the sliders (363).
7. The modular air conditioning unit of claim 6, wherein: a movable plate (365) is movably connected between two sides of the bottom of the inner wall of the noise reduction box (31), one end, away from the sliding block (363), of the movable rod (364) is rotatably connected with the bottom of the movable plate (365), through grooves (366) matched with the movable rod (364) are formed in two sides of the top of the shell (361), and a fan (9) is fixedly connected to the top of the movable plate (365).
8. A modular air conditioning unit according to claim 1, characterised in that: the portable filter is characterized in that a movable groove (10) matched with the filter screen (4) is formed in one side of the front face of the case (1), the bottom of the case (1) is fixedly connected with the top of the bottom plate (2), and four corners of the bottom plate (2) are fixedly connected with rubber support legs (11).
CN202211334229.XA 2022-10-28 2022-10-28 Combined air conditioning unit Withdrawn CN115507542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211334229.XA CN115507542A (en) 2022-10-28 2022-10-28 Combined air conditioning unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211334229.XA CN115507542A (en) 2022-10-28 2022-10-28 Combined air conditioning unit

Publications (1)

Publication Number Publication Date
CN115507542A true CN115507542A (en) 2022-12-23

Family

ID=84512406

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211334229.XA Withdrawn CN115507542A (en) 2022-10-28 2022-10-28 Combined air conditioning unit

Country Status (1)

Country Link
CN (1) CN115507542A (en)

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Application publication date: 20221223

WW01 Invention patent application withdrawn after publication