CN112146186A - Low-noise central air conditioner - Google Patents
Low-noise central air conditioner Download PDFInfo
- Publication number
- CN112146186A CN112146186A CN201910562161.2A CN201910562161A CN112146186A CN 112146186 A CN112146186 A CN 112146186A CN 201910562161 A CN201910562161 A CN 201910562161A CN 112146186 A CN112146186 A CN 112146186A
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- Prior art keywords
- fan coil
- noise reduction
- noise
- reduction device
- air conditioner
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- 230000009467 reduction Effects 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000003584 silencer Effects 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000002023 wood Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 241000589973 Spirochaeta Species 0.000 claims 1
- 239000003570 air Substances 0.000 abstract description 62
- 239000012080 ambient air Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
-
- 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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/00075—Indoor units, e.g. fan coil units receiving air from a central station
-
- 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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
-
- 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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
-
- 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
-
- 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
- F24F2013/247—Active noise-suppression
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The invention provides a low-noise central air conditioner which comprises a fan coil and a noise reduction mechanism, wherein the noise reduction mechanism comprises a first noise reduction device and a second noise reduction device, the first noise reduction device is wrapped outside the fan coil and used for isolating the fan coil, and the second noise reduction device is arranged inside the fan coil and used for disturbing airflow inside the fan coil. The first noise reduction device is wrapped outside the fan coil pipe to separate the fan coil pipe from the external environment, so that noise generated by the whole fan coil pipe is transmitted to the ambient air to be relieved; the second noise reduction device is arranged in the fan coil and is used for disturbing airflow in the fan coil and dispersing the airflow, so that noise generated by the airflow flowing in the fan coil is relieved; the first noise reduction device and the second noise reduction device are matched to process the internal noise and the external noise of the fan coil at the same time, so that the influence of the noise of the fan coil on the environment is greatly reduced.
Description
Technical Field
The invention relates to the technical field of noise reduction in installation of a central air conditioner, in particular to a low-noise central air conditioner.
Background
With the development of economy and the advancement of society, central air conditioners are used in large quantities. The fan coil has various advantages, so that the fan coil becomes an ideal terminal of a central air conditioner. The central air-conditioning fan coil of a residential household or hotel generally has a noise value of 42-45dB (A), the floor height of the residential house is generally 2.9m (including the thickness of a floor slab), the floor height is lower, the room space is smaller, the noise of an air conditioner is high, and the larger noise affects the sleeping quality of people particularly at night.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to a low-noise central air conditioner, which is used to solve the problem of excessive noise of the prior art central air conditioner.
To achieve the above and other related objects, the present invention provides a low noise central air conditioner, comprising: the noise reduction mechanism comprises a first noise reduction device and a second noise reduction device, the first noise reduction device wraps the outside of the fan coil and is used for isolating the fan coil, and the second noise reduction device is arranged in the fan coil and is used for disturbing airflow in the fan coil.
In an embodiment of the present invention, the fan coil includes a box, a heat exchange assembly, and a fan, the box is provided with an air inlet and an air outlet, the heat exchange assembly is fixed in the box, the heat exchange assembly is disposed between the fan and the air outlet, the fan is disposed at the air inlet, the first noise reduction device includes a housing, the housing is wrapped outside the box, the housing is provided with a first opening and a second opening, and the first opening and the second opening are aligned with the air inlet and the air outlet, respectively.
In an embodiment of the invention, an inner surface of the box body is a rough surface.
In an embodiment of the invention, a gap is formed between the shell and the box body, and the shell is made of three layers of composite boards and sequentially comprises a wood wire layer, a damping layer and a metal layer from inside to outside.
In an embodiment of the present invention, the second noise reduction device includes a plurality of silencers and a fixing plate, the fixing plate is fixed on the box body, the fixing plate is provided with a plurality of vent holes, the silencers are fixed on the fixing plate, and the silencers are opposite to the outlet of the fan.
In an embodiment of the present invention, the silencer is a spiral body, and the silencer includes a small diameter end and a large diameter end, the large diameter end of the silencer is fixed on the fixing plate, and the small diameter end is opposite to the outlet of the fan.
In an embodiment of the invention, the second noise reduction device further includes a spoiler disposed at the second opening.
In an embodiment of the invention, the spoiler includes an air guiding portion and a spoiler portion, one end of the air guiding portion is rotatably disposed on the housing at the second opening, the other end of the air guiding portion is fixedly connected with the spoiler portion, and an included angle is formed between the spoiler portion and the air guiding portion.
In an embodiment of the invention, the air guiding portion is folded outwards from a fixed end of the air guiding portion and the turbulent flow portion.
As described above, the low-noise central air conditioner of the present invention has the following advantages: the noise reduction mechanism comprises a first noise reduction device and a second noise reduction device, wherein the first noise reduction device wraps the fan coil outside and separates the fan coil from the external environment, so that noise generated by the whole fan coil is transmitted to the ambient air to be relieved; the second noise reduction device is arranged in the fan coil and is used for disturbing airflow in the fan coil and dispersing the airflow, so that noise generated by the airflow flowing in the fan coil is relieved; the first noise reduction device and the second noise reduction device are matched to process the internal noise and the external noise of the fan coil at the same time, so that the influence of the noise of the fan coil on the environment is greatly reduced.
Drawings
Fig. 1 is a schematic diagram showing an internal structure of a low-noise central air conditioner disclosed in the embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a first noise reduction device of a low-noise central air conditioner according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a box body of a low-noise central air conditioner disclosed in the embodiment of the invention.
Fig. 4 is a schematic composite structure diagram of a first noise reduction device of a low-noise central air conditioner disclosed in the embodiment of the invention.
Fig. 5 is a schematic structural view showing a silencer and a fixing plate of the low-noise central air conditioner disclosed in the embodiment of the invention.
Fig. 6 is a schematic structural view of a spoiler of a low noise central air conditioner according to an embodiment of the present invention.
Description of the element reference numerals
1-a first noise reducing device; 2-second noise reducing means; 3-a fan coil; 4-a box body; 5-a heat exchange assembly; 6, a fan; 7-air inlet; 8-air outlet; 9-a first opening; 10-a second opening; 11-a wood wool layer; 12-a damping layer; 13-a metal layer; 14-a silencer; 15-fixing the plate; 16-a vent; 17-a spoiler; 18-a wind-guiding portion; 19-a spoiler.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 6. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1-6, the present invention provides a low noise central air conditioner, which comprises a fan coil 3 and a noise reduction mechanism.
Referring to fig. 1-3, the noise reduction mechanism includes a first noise reducer 1 and a second noise reducer 2. The first noise reduction device 1 is wrapped outside the fan coil 3 and used for isolating the fan coil 3. A second noise reducing means 2 is arranged in the fan coil 3 for disturbing the air flow in the fan coil 3.
The noise reduction mechanism comprises a first noise reduction device 1 and a second noise reduction device 2, wherein the first noise reduction device 1 is wrapped outside the fan coil 3 to separate the fan coil 3 from the external environment, so that the noise generated by the whole fan coil 3 is transmitted to the ambient air to be relieved; the second noise reduction device 2 is arranged in the fan coil 3, and is used for disturbing airflow in the fan coil 3 and dispersing the airflow, so that noise generated by the flowing of the airflow in the fan coil 3 is relieved.
The first noise reduction device 1 is matched with the second noise reduction device 2, and the internal noise and the external noise of the fan coil 3 are processed simultaneously, so that the influence of the noise of the fan coil 3 on the environment is greatly reduced.
Referring to fig. 1, a fan coil 3 includes a housing 4, a heat exchange assembly 5, and a fan 6.
The inner surface of the box body 4 is rough, and can cause diffuse reflection to sound waves in the box body 4, thereby disturbing the transmission of the sound waves and reducing noise.
Referring to fig. 3, the box 4 is provided with an air inlet 7 and an air outlet 8. The fan 6 is disposed at the air inlet 7, and when the fan 6 operates, a pressure difference is generated between the inside of the box 4 and the external environment, so that air is forced into the box 4 from the fan 6.
Referring to fig. 1, a heat exchange assembly 5 is fixed in a box 4, and the heat exchange assembly 5 is disposed between a fan 6 and an air outlet 8. The air flow entering the box body 4 under the action of the fan 6 is subjected to heat exchange treatment at the heat exchange assembly 5, and then is discharged from the air outlet 8 to enter the indoor environment.
Referring to fig. 2, the first noise reducer 1 includes a housing, and the housing is provided with a first opening 9 and a second opening 10. The housing is wrapped outside the box 4, and the first opening 9 and the second opening 10 are aligned with the air inlet 7 and the air outlet 8, respectively. In this embodiment, a gap is provided between the housing and the box body 4, the first opening 9 of the housing is completely the same as the air inlet 7 of the box body 4, and the edge of the first opening 9 is connected with the edge of the air inlet 7 in a matching manner; the second opening 10 of casing is identical with the air exit 8 of box 4, and the edge cooperation of second opening 10 meets with the 8 edges of air exit for form totally closed space between shells inner wall and the 4 outer walls of box, thereby guaranteeing under the condition that the air current can normally come in and go out, including wrapping up the produced noise maximum scope in the box 4, thereby reduce the probability that the noise diffusion propagated to ambient air.
Referring to fig. 4, the housing is made of a three-layer composite board, and includes a wood wool layer 11, a damping layer 12, and a metal layer 13 in sequence from inside to outside. The wood-wool layer 11 is a wood-wool plate which is of a net structure with vertically and horizontally staggered and disordered and has numerous non-through meshes and can form a porous labyrinth, so that sound waves of noise are firstly filtered to form one layer. In the present embodiment, the damping layer 12 is made of soft rubber, and can directly reduce the sound wave impact, thereby reducing the vibration caused by the gas pulsation. The metal layer 13 ensures the overall strength of the shell and increases the plasticity of the shell. The three-layer composite structure is mutually matched, so that the shell has an integral sound insulation effect, and the noise generated by the fan coil 3 in the shell is reduced.
Referring to fig. 1, the second noise reducer 2 includes a plurality of silencers 14 and a fixed plate 15.
The fixing plate 15 is fixed on the box body 4 and is arranged between the fan 6 and the heat exchange assembly 5. The fixed plate 15 is provided with a plurality of ventilation holes 16, and air flow can pass through the ventilation holes 16. The silencer 14 is fixed to the fixing plate 15, and is opposed to the outlet of the fan 6.
Referring to fig. 1 and 5, the silencer 14 is a spiral, and the silencer 14 includes a small diameter end and a large diameter end. The silencer 14 has a large diameter end fixed to the fixing plate 15 and a small diameter end opposite to the outlet of the fan 6.
After entering the box 4 under the effect of fan 6, the air current comes out from the export of fan 6, at first through muffler 14, and the windward end of muffler 14 is the minor diameter end, and the diameter of muffler 14 is bigger more backward, is favorable to scattering the air current. Meanwhile, the silencer 14 is a spiral body, and the dispersed airflow is simultaneously rotated by the spiral body, so that the impact of the airflow is relieved, the flow speed of the airflow is reduced, and the flowing direction of the airflow is disturbed again, so that the generation of noise is relieved.
Referring to fig. 1, in the present embodiment, the second noise reducer 2 further includes a spoiler 17, and the spoiler 17 is disposed at the second opening 10.
Referring to fig. 6, the spoiler 17 includes a wind guide portion 18 and a spoiler portion 19.
The air guide portion 18 and the spoiler portion 19 are both plate-shaped, one end of the air guide portion 18 is rotatably arranged on the shell at the second opening 10, the other end of the air guide portion 18 is fixedly connected with the spoiler portion 19, an included angle is formed between the spoiler portion 19 and the air guide portion 18, and the air guide portion 18 is folded outwards from the fixed end of the spoiler portion 19.
When the air flow from the heat exchange assembly 5 enters the indoor space through the air outlet 8, the blowing spoiler 17 rotates to guide the movement direction of the air flow. Meanwhile, the turbulence part 19 is connected with the tail end of the air guide part 18, and the turbulence part 19 is turned outwards, so that the direction of the airflow is changed again at the turning part of the air guide part 18 and the turbulence part 19 after the airflow is buffered by the air guide part 18, the airflow is disturbed, and the noise generated by the concentrated flow of the air is reduced.
In summary, the first noise reduction device 1 and the second noise reduction device 2 of the present invention cooperate to process the internal and external noise of the fan coil 3 at the same time, so as to greatly reduce the influence of the noise of the fan coil 3 on the environment. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A low noise central air conditioner, comprising: the noise reduction mechanism comprises a first noise reduction device and a second noise reduction device, the first noise reduction device wraps the outside of the fan coil and is used for isolating the fan coil, and the second noise reduction device is arranged in the fan coil and is used for disturbing airflow in the fan coil.
2. A low noise central air conditioner according to claim 1, wherein: the fan coil includes box, heat exchange assembly and fan, be equipped with air intake and air exit on the box, heat exchange assembly fixes in the box, and heat exchange assembly sets up between fan and air exit, the fan sets up in air intake department, the first device of making an uproar of falling includes the casing, the casing parcel is in outside the box, just be equipped with first opening and second opening on the casing, first opening and second opening align with air intake and air exit respectively.
3. A low noise central air conditioner according to claim 2, wherein: the inner surface of the box body is a rough surface.
4. A low noise central air conditioner according to claim 2, wherein: a gap is arranged between the shell and the box body, the shell is made of three layers of composite boards and sequentially comprises a wood wool layer, a damping layer and a metal layer from inside to outside.
5. A low noise central air conditioner according to claim 2, wherein: the second noise reduction device comprises a plurality of silencers and a fixed plate, the fixed plate is fixed on the box body, a plurality of ventilation holes are formed in the fixed plate, the silencers are fixed on the fixed plate, and the silencers are opposite to the outlet of the fan.
6. A low noise central air conditioner according to claim 4, wherein: the silencer is the spirochaeta, just the silencer includes path end and major diameter end, the major diameter end of silencer is fixed on the fixed plate, the path end is relative with the export of fan.
7. A low noise central air conditioner according to claim 5 or 6, characterized in that: the second noise reduction device further comprises a spoiler, and the spoiler is arranged at the second opening.
8. A low noise central air conditioner according to claim 7, wherein: the spoiler comprises a wind guide part and a spoiler part, one end of the wind guide part is rotatably arranged on the shell at the second opening, the other end of the wind guide part is fixedly connected with the spoiler part, and an included angle is formed between the spoiler part and the wind guide part.
9. A low noise central air conditioner according to claim 8, wherein: the wind guide part is turned outwards from the fixed end of the wind disturbing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562161.2A CN112146186A (en) | 2019-06-26 | 2019-06-26 | Low-noise central air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562161.2A CN112146186A (en) | 2019-06-26 | 2019-06-26 | Low-noise central air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112146186A true CN112146186A (en) | 2020-12-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910562161.2A Pending CN112146186A (en) | 2019-06-26 | 2019-06-26 | Low-noise central air conditioner |
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| CN108759062A (en) * | 2018-06-07 | 2018-11-06 | 四川旭昊德环保设备有限公司 | A kind of denoising device of fresh air system |
| CN108996482A (en) * | 2018-07-18 | 2018-12-14 | 杭州科技职业技术学院 | Silencer for PSA nitrogen making machine |
| CN208504700U (en) * | 2018-01-30 | 2019-02-15 | 广州靖鑫环保科技有限公司 | A kind of efficiently mute air purifier blower denoiser |
| CN208579397U (en) * | 2018-07-27 | 2019-03-05 | 安徽金鸿盛电气有限公司 | A kind of comfort type air-conditioning for capableing of effective noise reduction |
| CN208886915U (en) * | 2018-09-05 | 2019-05-21 | 浙江汇隆空调设备有限公司 | A kind of combined air conditioning box with decrease of noise functions |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2233956Y (en) * | 1995-09-25 | 1996-08-28 | 王法源 | High-effect sound-absorbing body |
| CN202532618U (en) * | 2012-03-30 | 2012-11-14 | 海尔集团公司 | Clamping type air conditioner and noise reduction grid applied to clamping type air conditioner |
| CN203531166U (en) * | 2013-09-23 | 2014-04-09 | 华中科技大学 | Composite low-frequency sound barrier |
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| CN208886915U (en) * | 2018-09-05 | 2019-05-21 | 浙江汇隆空调设备有限公司 | A kind of combined air conditioning box with decrease of noise functions |
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Application publication date: 20201229 |
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| RJ01 | Rejection of invention patent application after publication |