CN106500203A - A kind of denoising structure of air-conditioner outdoor unit, casing of outdoor and air-conditioner outdoor unit - Google Patents
A kind of denoising structure of air-conditioner outdoor unit, casing of outdoor and air-conditioner outdoor unit Download PDFInfo
- Publication number
- CN106500203A CN106500203A CN201610926983.0A CN201610926983A CN106500203A CN 106500203 A CN106500203 A CN 106500203A CN 201610926983 A CN201610926983 A CN 201610926983A CN 106500203 A CN106500203 A CN 106500203A
- Authority
- CN
- China
- Prior art keywords
- air
- wall
- outdoor unit
- hole
- conditioner outdoor
- 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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/40—Vibration or noise prevention at outdoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
-
- 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
- F24F13/20—Casings or covers
-
- 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
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
Abstract
The present invention relates to a kind of denoising structure for air-conditioner outdoor unit, including the body and the separating element being arranged on the body with the first wall and the second wall being oppositely arranged；The separating element includes：The hole being extended to second wall from first wall, and/or, the separation chamber being arranged between first wall and second wall；Spacer body, the spacer body are filled with the hole and/or the separation chamber, and the spacer body has different sound conduction abilities from the body.The invention further relates to the casing of outdoor including the denoising structure and the air-conditioner outdoor unit including the casing of outdoor.The denoising structure barriering effect good for low frequency noise has, can effectively reduce the noise that air-conditioner outdoor unit operationally outwards conducts, improve the comfort of air-conditioning.
Description
Technical field
The present invention relates to air-conditioning technical field, and in particular to a kind of denoising structure of air-conditioner outdoor unit, casing of outdoor and
Air-conditioner outdoor unit.
Background technology
The advantages of detachable air conditioner is due to taking the little interior space, good refrigeration effect, by the extensive welcome of consumer.
Air-conditioner outdoor unit common at present generally includes blower fan and compressor, when air-conditioner outdoor unit is operated, wind
Machine can often produce the operating noise for damaging health in a large number with the common operating of compressor, and especially compressor is in running
In can produce substantial amounts of low frequency noise.Low frequency noise, is often referred to sound of the frequency in below 200Hz, and China is for low frequency noise
Audio frequency range be defined as 20-200Hz.Due to the wavelength of low frequency noise longer, therefore, compared with high frequency noise, low
Frequency noise is easier to pass through barrier, and its decay in conductive process slower, it is more difficult to eliminate, easily health caused to damage
Evil.
Low frequency noise can be conducted by modes such as structure-borne sound transmission, air-borne sound and standing waves, for air-conditioner outdoor unit
For, the low frequency noise produced in the off-premises station course of work is mainly by the casing of outdoor be made up of Metal plate to unofficial biography
Lead, existing air-conditioner outdoor unit generally attaches damping material at the inwall of its shell, to reduce the sheet metal shell of air-conditioner outdoor unit
The outwards noise of transmission, but the method is limited for the isolation effect of low frequency noise, it is impossible to band when eliminating air-conditioning work well
The low frequency noise pollution for coming, and the damping material that extra laminating is arranged causes the shell wall of air-conditioner outdoor unit to thicken, and takes air conditioning chamber
The confined space in outer machine, is unfavorable for the miniaturization for realizing air-conditioner outdoor unit.
Content of the invention
In order to solve the problems referred to above of prior art presence, the invention provides a kind of denoising structure of air-conditioner outdoor unit,
Casing of outdoor and air-conditioner outdoor unit.Purpose is, reduces the low frequency noise that air-conditioner outdoor unit operationally outwards conducts.
The technical solution adopted in the present invention is：
A kind of denoising structure of air-conditioner outdoor unit, including there is the first wall for being oppositely arranged and the second wall body,
With the separating element being arranged on the body；
The separating element includes：
The hole being extended to second wall from first wall, and/or, it is arranged at first wall and institute
State the separation chamber between the second wall；
Spacer body, the spacer body are filled with the hole and/or the separation chamber, and the spacer body and institute
State body and there are different sound conduction abilities.
Preferably, the hole is through hole and/or blind hole；
For multiple, multiple holes are spaced and are arranged on the body into multiple lines and multiple rows the quantity in the hole.
Preferably, the body is platy structure, and first wall and second wall are on the body, hang down
The wall that the straight thickness direction in the body is arranged.
Preferably, the body is made up of Metal plate, is provided with resistance on first wall and/or second wall
Buddhist nun's damping material layers.
Preferably, the spacer body is made up of shock-absorption sound-insulation material.
Preferably, the shock-absorption sound-insulation material is damping vibration attenuation deadener.
Preferably, when the separating element includes the hole, the spacer body is engaged by clamping with the hole and is fixed；
The edge of the spacer body is provided with the first groove, the edge in the hole and/or side-walls and is provided with
Raised with the first of the first fit depressions clamping；
Or, the edge of the spacer body is provided with the second projection, the edge in the hole and/or side-walls are provided with energy
Enough the second grooves for being engaged clamping with second projection.
Preferably, the denoising structure is set to the panel of the air-conditioner outdoor unit.
A kind of casing of outdoor, including front panel, rear board, top board, base plate and side plate, and the front panel, described after
At least one of panel, the top board, the base plate and described side plate are described denoising structure.
A kind of air-conditioner outdoor unit, including described air-conditioner outdoor unit shell.
Beneficial effects of the present invention are：
1st, multiple separating elements are provided with the body, and the separating element can be by the larger surface of the body
And/or volume is separated, little block structure/frame structure is formed.Due to the wavelength of low frequency noise longer, its be provided with described
Conducting power on the body of separating element is weaker, and when low frequency noise passes through the denoising structure, the body is with sound
The vibration of ripple reduces, so as to reaching vibration damping and reducing the effect of low frequency noise.
2nd, the body is made up of Metal plate, is conducive to the intensity and toughness for keeping the denoising structure, is easy to process,
More attractive in appearance, and its decay resistance is preferably, is conducive to the service life for improving the denoising structure.First wall and institute
State the second wall and damping vibration attenuation material layer is set, advantageously reduce acoustic wave energy, reduce vibration of the body with sound wave, so as to
The noise reduction of the body is further improved.
3rd, the spacer body is made up of shock-absorption sound-insulation material, is conducive to further strengthening the denoising structure for sound wave
Obstructing capacity, reduces vibration of the spacer body with the sound wave, reduces the intensity of the sound wave by the denoising structure, so as to
Further optimize the noise reduction of the denoising structure.
Description of the drawings
Fig. 1 is the structural representation of the denoising structure of air-conditioner outdoor unit of the present invention.
In figure：1st, body；2nd, separating element；21st, hole；22nd, spacer body；3rd, air-ducting ring.
Specific embodiment
For be expanded on further the present invention for reaching technological means and effect that predetermined purpose is taken, below in conjunction with accompanying drawing with
And preferred embodiment, to the specific embodiment according to the present patent application, structure, feature and its effect, describe in detail as after.?
In the description below, special characteristic, structure or feature in one or more embodiments can be combined by any suitable form.
As shown in figure 1, this specific embodiment provides a kind of denoising structure of air-conditioner outdoor unit, it is oppositely arranged including having
The first wall and the second wall body 1 and the separating element 2 being arranged on the body 1；
The separating element 2 includes：
From first wall to second wall be extended hole 21, and/or, be arranged at first wall and
Separation chamber between second wall；
Spacer body 22, the spacer body 22 are filled with the hole 21 and/or the separation chamber, and the separation
Body 22 has different sound conduction abilities from the body 1.
In the present invention, for convenience of explanation, with the first wall of the denoising structure towards in the air-conditioner outdoor unit, product
The part of raw noise, such as blower fan, compressor etc.；With second wall towards the outside of air-conditioner outdoor unit, that is, need to reach
The region of certain noise reduction, therefore, in the present invention, conduction orientation of sound wave when through the denoising structure is：By institute
State the first wall side, conduct through the denoising structure, to the second wall side.But do not limit noise only in the direction
Conduction.
The noise that the denoising structure is conducted in being used for reducing from air-conditioner outdoor unit to environment, particularly low frequency noise.Institute
State separating element 2 include hole and/or separation chamber, the hole 21 or the separation chamber can make the body 1 formed inside,
Or surface has pertusate at least one frame structure, and the hole 21 and/or interior being filled with of separation chamber are had with the body 1
There is the material of alternative sounds conducting power.As the wavelength of low frequency noise is longer, which is easier with larger full surface
Or conduction in complete volume, when which is conducted in the denoising structure, the sound wave institute of low frequency noise is interrupted larger, described
Body 1 reduces with the vibration of sound wave, so as to reaching vibration damping and effectively weakening or eliminate the effect of low frequency noise.
It should be noted that described low frequency noise in the present invention, refers both to the noise that frequency is 20-200Hz.The separation
Body 22 can be the combination of any one or more in gas, liquid or solid, more specifically, the spacer body 22 can be
Air, that is, it is empty to keep the hole 21 and/or separation chamber.The hole 21 and/or separation chamber can separate institute from structure
Main body is stated, plays a part of to hinder the low frequency noise of larger wavelength to transmit in the denoising structure.But, this kind of design
It is unfavorable for the outside propagation for hindering other upper frequency noises, simultaneously as what air-conditioner outdoor unit was produced during operation
The wave spread of noise is wider, for reducing overall noise and being easily installed the purpose for using, it is preferable that the spacer body
22 select solid material, so that the denoising structure can not only reduce the effect of low frequency noise, it is also possible to reduce overall
Noise, improves the quiet performance of air-conditioning.Meanwhile, filled solid material in the hole 21 and/or separation chamber so that the drop
Structure of making an uproar can be by itself or by combined with other structures and form enclosed construction, so as to play outside protection air-conditioning room
Machine interior arrangement, the effect for preventing dust and other impurities from falling into inside air-conditioner outdoor unit, improving aesthetic property.
Used as a kind of preferably embodiment, the hole 21 is through hole and/or blind hole；Preferably, the hole 21 is through hole.
The through hole is easy to process, and is applied to the less body 1 of thickness.It is larger that the blind hole is applied to 1 thickness of the body
Situation, or in actual application, when the appearance requirement to the denoising structure is higher, the hole 21 can be set to
The blind hole, and the side wall for making not penetrated by the blind hole on the denoising structure is used as appearance, to improve structure
Aesthetic property.Described thickness, refers to the average distance between first wall and second wall herein.
The quantity in the hole 21 is multiple, is spaced to multiple 21 one-tenth multiple lines and multiple rows in hole and is arranged at the body 1
On.The regularly arranged hole 21 is conducive to structural strength and the aesthetic property for improving the denoising structure, it is preferable that the hole
21 cross section is rectangle.The arrangement mode in the hole 21, shape and quantity can be selected according to actual needs.
Used as a kind of preferably embodiment, the body 1 is platy structure, first wall and second wall
Be on the body 1, perpendicular to the body 1 the wall that arranges of thickness direction.Preferably, the body 1 is by panel beating material
Material is made, and Metal plate is conducive to the intensity and toughness for keeping the denoising structure, is easy to process, more attractive in appearance, and its corrosion resistant
Corrosion preferably can be conducive to the service life for improving the denoising structure.Vibration damping process can be carried out on the body 1, for example,
Preferably, damping vibration attenuation material layer is set on first wall and/or second wall.First wall and described
Second wall arranges damping vibration attenuation material layer, advantageously reduces acoustic wave energy, reduces vibration of the body 1 with sound wave, so as to
The noise reduction of the body 1 is further improved.The vibration damping carried out on the body 1 is processed and is not limited to aforesaid way,
Other shock-absorbent processing methods that are existing, can be applicable to the body 1 can be applied.
The ability of the conduction sound of the spacer body 22 can be higher or lower than the ability that the body 1 conducts sound.As one
Preferably embodiment is planted, the spacer body 22 is made up of shock-absorption sound-insulation material.The spacer body 22 is by shock-absorption sound-insulation material system
Into, be conducive to further strengthening the denoising structure for the obstructing capacity of sound wave, the reduction spacer body 22 is with the sound wave
Vibration, reduce the intensity by the sound wave of the denoising structure, so as to further optimize the noise reduction of the denoising structure.
Preferably, the shock-absorption sound-insulation material is damping vibration attenuation deadener.
As a kind of preferably embodiment, when the separating element 2 includes the hole 21, the spacer body 22 and institute
State the clamping engagement of hole 21 to fix；
The edge of the spacer body 22 is provided with the first groove, the edge in the hole 21 and/or side-walls and is provided with
Can be raised with the first of the first fit depressions clamping；
Or, the edge of the spacer body 22 is provided with the second projection, the edge in the hole 21 and/or side-walls are arranged
Have the second groove that clamping can be engaged with second projection.
The spacer body 22 is engaged by clamping with the hole 21 so that the spacer body 22 is easy to assembly, and easily disassembled, when
The spacer body 22 can be changed when damaging respectively, and need not change whole denoising structure, be thus advantageous to improve noise reduction
The service life of structure, reduces use cost.Fit system between the spacer body 22 and the hole 21 is not limited to card
Connect, can also be connected by other feasible fixed forms therebetween, such as using the side such as binder adhesive or screw fastening
Formula.
Used as a kind of preferably embodiment, the denoising structure is set to the panel of the air-conditioner outdoor unit.The face
Plate refers to be used for the side wooden partition for arranging air outlet on the air-conditioner outdoor unit, and the air outlet is provided with air-ducting ring 3.
The invention further relates to a kind of casing of outdoor, including front panel, rear board, top board, base plate and side plate, and described before
At least one of panel, the rear board, the top board, the base plate and described side plate are described denoising structure.Specifically
Ground, herein described "front", "rear", " top ", " bottom ", " side " are referred to when the casing of outdoor is vertically arranged, with
In the side wooden partition of air outlet being arranged as front panel, be the rear board with the wooden partition that the front panel is oppositely arranged, arrange
In the vertical top of the casing of outdoor wooden partition be the top board, with the top board be oppositely arranged for the off-premises station outside
The base plate of shell, the residue on the casing of outdoor other wooden partitions are the side plate.
The invention further relates to a kind of air-conditioner outdoor unit, including described air-conditioner outdoor unit shell.
Operation principle of the invention and preferred embodiment is described below：
The invention reside in being designed to the transmission for effectively reducing panel vibration, reduce the air-conditioner outdoor unit of whole machine low frequency noise
Panel.
Technological means and beneficial effect that the present invention is adopted：
1st, by arranging the frame structure for including through hole, air-conditioner outdoor unit panel larger for original area is decoupled, blocking
The vibration transmission of long-wave-shaped sound wave, so that reduce low frequency noise；Bore hole size, shape are not particularly limited.
2nd, include that the frame structure of through hole can do vibration damping process, in hole, fill sheet material, the sheet material also can select shock-absorption sound-insulation
Material, further reduces vibrating noise.
A preferred embodiment of the present invention is：
Air-conditioner outdoor unit panel integrally using frame structure, is embedded in sheet material by the hole that framework is formed, to realize tradition
The sealing effect of panel, embedded mode can be：Draw-in groove is set around the sheet material, snaps in panel.Such panel knot
Structure, on the one hand resolves into original bulk sheet metal structural by little block structure, because the waveform of low-frequency vibration is length, in large area
It is easier to transmit on sheet metal structural, and being decomposed into little block structured panel makes low-frequency vibration lose delivery context, so this
The bright effect that can play reduction low-frequency vibration noise；On the other hand, the sheet material being embedded in hole can be as needed
Selected, damping vibration attenuation material can be selected, further reduced the vibrating noise of panel.Therefore panel construction energy of the invention
Enough effectively reduction outdoor shell low-frequency vibration noises.The program applies also for the structures such as the top cover of air-conditioner outdoor unit, side plate.
To sum up, skilled addressee readily understands that, on the premise of not conflicting, above-mentioned each advantageous manner can from
By combination, superposition.
The above, better embodiment only of the invention not does any pro forma restriction to the present invention.Any
People can draw other various forms of products under the enlightenment of the present invention, however, making any change in its shape or structure
Change, every with technical scheme identical or similar to the present application, it is within the scope of the present invention.
Claims (10)
1. a kind of denoising structure of air-conditioner outdoor unit, it is characterised in that include with the first wall and the second wall being oppositely arranged
The body (1) in face and the separating element (2) being arranged on the body；
Separating element (2) include：
The hole (21) being extended to second wall from first wall, and/or, it is arranged at first wall and institute
State the separation chamber between the second wall；
Spacer body (22), spacer body (22) are filled with the hole (21) and/or the separation chamber, and described point
Spacer (22) has different sound conduction abilities from the body (1).
2. the denoising structure of air-conditioner outdoor unit according to claim 1, it is characterised in that described hole (21) be through hole and/
Or blind hole；
For multiple, multiple hole (21) are spaced and are arranged at the body into multiple lines and multiple rows the quantity of hole (21)
(1) on.
3. the denoising structure of air-conditioner outdoor unit according to claim 1 and 2, it is characterised in that described body (1) is tabular
Structure, first wall and second wall are the upper thickness direction perpendicular to the body (1) of the body (1)
The wall of setting.
4. the denoising structure of air-conditioner outdoor unit according to claim 3, it is characterised in that body (1) is by panel beating material
Material is made, and is provided with damping vibration attenuation material layer on first wall and/or second wall.
5. the denoising structure of the air-conditioner outdoor unit according to any one of claim 1-4, it is characterised in that the spacer body
(22) it is made up of shock-absorption sound-insulation material.
6. the denoising structure of air-conditioner outdoor unit according to claim 5, it is characterised in that the shock-absorption sound-insulation material is resistance
Buddhist nun's shock-absorption sound-insulation material.
7. the denoising structure of the air-conditioner outdoor unit according to claim 5 or 6, it is characterised in that when the separating element (2)
During including the hole (21), spacer body (22) are engaged by clamping with the hole (21) and are fixed；
The edge of spacer body (22) is provided with the first groove, the edge of the hole (21) and/or side-walls and is provided with
Can be raised with the first of the first fit depressions clamping；
Or, the edge of spacer body (22) is provided with the second projection, the edge of hole (21) and/or side-walls are arranged
Have the second groove that clamping can be engaged with second projection.
8. the denoising structure of the air-conditioner outdoor unit according to any one of claim 1-7, it is characterised in that the denoising structure
It is set to the panel of the air-conditioner outdoor unit.
9. a kind of casing of outdoor, it is characterised in that including front panel, rear board, top board, base plate and side plate, and described before
At least one of plate, the rear board, the top board, the base plate and described side plate are described in any one of claim 1-8
Denoising structure.
10. a kind of air-conditioner outdoor unit, it is characterised in that including the air-conditioner outdoor unit shell described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610926983.0A CN106500203A (en) | 2016-10-31 | 2016-10-31 | A kind of denoising structure of air-conditioner outdoor unit, casing of outdoor and air-conditioner outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610926983.0A CN106500203A (en) | 2016-10-31 | 2016-10-31 | A kind of denoising structure of air-conditioner outdoor unit, casing of outdoor and air-conditioner outdoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106500203A true CN106500203A (en) | 2017-03-15 |
Family
ID=58318620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610926983.0A Pending CN106500203A (en) | 2016-10-31 | 2016-10-31 | A kind of denoising structure of air-conditioner outdoor unit, casing of outdoor and air-conditioner outdoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106500203A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355915A (en) * | 2017-08-22 | 2017-11-17 | 广东美的制冷设备有限公司 | Vibration damper plate and there is its air-conditioner outdoor unit |
| CN109263165A (en) * | 2018-10-26 | 2019-01-25 | 西南交通大学 | A kind of middle low frequency suction vibration isolation metamaterial of multiband selected control |
| CN110608169A (en) * | 2019-09-05 | 2019-12-24 | 珠海格力电器股份有限公司 | Compressor noise reduction box, noise reduction method, compressor and air conditioner |
| CN112484272A (en) * | 2020-11-30 | 2021-03-12 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioning unit |
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| CN105276705A (en) * | 2015-12-03 | 2016-01-27 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit and vibration and noise reduction structure thereof |
| CN205561198U (en) * | 2016-04-26 | 2016-09-07 | 安徽工业大学 | A sound absorbing structure that gives sound insulation for new fan |
| CN206160316U (en) * | 2016-10-31 | 2017-05-10 | 珠海格力电器股份有限公司 | Structure of making an uproar, outdoor unit casing and air condensing units fall in air condensing units |
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| CN2873909Y (en) * | 2006-03-06 | 2007-02-28 | 朱文龙 | Sound insulation plate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355915A (en) * | 2017-08-22 | 2017-11-17 | 广东美的制冷设备有限公司 | Vibration damper plate and there is its air-conditioner outdoor unit |
| CN109263165A (en) * | 2018-10-26 | 2019-01-25 | 西南交通大学 | A kind of middle low frequency suction vibration isolation metamaterial of multiband selected control |
| CN109263165B (en) * | 2018-10-26 | 2024-01-30 | 西南交通大学 | Multiband-selected-control medium-low frequency absorption and vibration isolation metamaterial |
| CN110608169A (en) * | 2019-09-05 | 2019-12-24 | 珠海格力电器股份有限公司 | Compressor noise reduction box, noise reduction method, compressor and air conditioner |
| CN112484272A (en) * | 2020-11-30 | 2021-03-12 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioning unit |
| CN112484272B (en) * | 2020-11-30 | 2022-03-11 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioning unit |
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Application publication date: 20170315 |