CN202040956U - Noise damping device in air duct of central air conditioner - Google Patents

Noise damping device in air duct of central air conditioner Download PDF

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Publication number
CN202040956U
CN202040956U CN2011201079915U CN201120107991U CN202040956U CN 202040956 U CN202040956 U CN 202040956U CN 2011201079915 U CN2011201079915 U CN 2011201079915U CN 201120107991 U CN201120107991 U CN 201120107991U CN 202040956 U CN202040956 U CN 202040956U
Authority
CN
China
Prior art keywords
air
intaking box
deflection plate
conditioning
central
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.)
Expired - Lifetime
Application number
CN2011201079915U
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Chinese (zh)
Inventor
陈越增
邵国强
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.)
NINGBO HICON INDUSTRY Co Ltd
Original Assignee
NINGBO HICON INDUSTRY 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
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Priority to CN2011201079915U priority Critical patent/CN202040956U/en
Application granted granted Critical
Publication of CN202040956U publication Critical patent/CN202040956U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a noise damping device in an air duct of a central air conditioner, which comprises an air return box which is connected in the air duct of the air conditioner in series and is positioned between an air suction port of a fan and a user air outlet; and the air return box is provided with an air inlet and an air outlet corresponding to flow direction of airflow, a baffle plate is arranged in the air return box, and materials capable of absorbing sound waves are arranged in the air return box and on the surface of the baffle plate. By arranging the special noise damping air return box in the air duct of the air conditioner, the impacts of noise of the fan on using environment of the air conditioner can be basically eliminated.

Description

Silencing means in a kind of central air-conditioning air channel
Technical field
The utility model relates to a kind of ventilation unit of air-conditioning, the silencing means in particularly a kind of central air-conditioning air channel.
Background technology
Be typically provided with the power source of blower fan in the central air-conditioning ventilation unit at present as the air channel, the noise that produces during blower fan work can be passed the air conditioner user environment back by the air channel, the not ad hoc silencing means of prior art is handled, and makes the use of some place air-conditioning system not reach the requirement to noise.
The utility model content
The utility model is in order to overcome defective in the above-mentioned prior art, by special-purpose silencing means is set, can eliminate the influence of fan noise to the air-conditioning environment for use substantially in air-conditioning duct.
The utility model provides the silencing means in a kind of central air-conditioning air channel, comprises air-intaking box, air-intaking box be serially connected with in the air-conditioning duct and be in the blower fan air entry and user's air outlet between; The casing of air-intaking box be provided with corresponding air flow direction into and out of the air port, the inside of air-intaking box is provided with and is used to make the air-flow that enters the air-intaking box casing to form the deflection plate of collision sound-absorbing; The cabinet wall of air-intaking box and the surface of deflection plate are provided with sound-absorbing material.
Preferably, deflection plate is arranged at the air inlet place of air-intaking box and forms an angle with the direction of motion of air-flow.
Preferably, deflection plate extends to box house from the import department of air-intaking box, and the extended surface of deflection plate and casing inletpiston are the acute angle setting.
Preferably, sound-absorbing material can be the cotton goods with certain thickness individual layer or lamination; The surface of sound-absorbing material object gas flow can have ups and downs shape.
Compared with prior art, the utility model is by being provided with the air-intaking box of special-purpose noise reduction in air-conditioning duct, and in the casing of air-intaking box, deflection plate is set, and at deflection plate and cabinet wall surface sound-absorbing material is set simultaneously, can eliminate the influence of fan noise substantially to the air-conditioning environment for use.
Description of drawings
Fig. 1 is the silencing means structure chart in a kind of central air-conditioning of the utility model air channel.
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
The 1-casing, 11-air inlet, 12-air outlet, 13-noise adsorption layer, 14-deflection plate, 2-blower fan.
The specific embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of the specific embodiment.
Silencing means in a kind of central air-conditioning air channel that the utility model provides as shown in Figure 1, comprise air-intaking box, air-intaking box be serially connected with in the air-conditioning duct and be in the blower fan air entry and user's air outlet between, the casing 1 of air-intaking box is provided with the air inlet 11 of corresponding air flow direction, air outlet 12; Casing 1 inside of air-intaking box is provided with deflection plate 14, deflection plate 14 is arranged at the air inlet place of air-intaking box and is the acute angle setting to the box house extension with the casing inletpiston, and then form certain included angle with the direction of motion of air-flow, make air-flow when entering air-intaking box, form and collide with deflection plate.In addition, deflection plate 14 can also be arranged at the position (not shown) of other the risen baffling effect in the air-intaking box.The surface of the inwall of air-intaking box and deflection plate 14 is provided with the noise adsorption layer 13 of the material formation that absorbs sound wave, noise adsorption layer 13 is for having the cotton goods of certain thickness individual layer or lamination, and the surface of its object gas flow has ups and downs shape to have the surface area of bigger absorption sound wave.Air communication cross in air-intaking box casing 1 baffling motion and with the collision of noise adsorption layer 13, make the entrained acoustic wave energy of air-flow be attenuated, thereby realize the effect of noise reduction.
Compared with prior art, the utility model is by being provided with the air-intaking box of special-purpose noise reduction in air-conditioning duct, and in the casing of air-intaking box, deflection plate is set, and at deflection plate and cabinet wall surface sound-absorbing material is set simultaneously, can eliminate the influence of fan noise substantially to the air-conditioning environment for use.
More than disclosed only be a specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.

Claims (5)

1. the silencing means in the central air-conditioning air channel is characterized in that, comprises air-intaking box, air-intaking box be serially connected with in the air-conditioning duct and be in the blower fan air entry and user's air outlet between; The casing of described air-intaking box be provided with corresponding air flow direction into and out of the air port, the inside of air-intaking box is provided with and is used to make the air-flow that enters the air-intaking box casing to form the deflection plate of collision sound-absorbing; The cabinet wall of described air-intaking box and the surface of deflection plate are provided with sound-absorbing material.
2. the silencing means in the central air-conditioning according to claim 1 air channel is characterized in that, described deflection plate is arranged at the air inlet place of air-intaking box and forms an angle with the direction of motion of air-flow.
3. the silencing means in the central air-conditioning according to claim 2 air channel is characterized in that described deflection plate extends to box house from the import department of air-intaking box, and the extended surface of deflection plate and casing inletpiston are the acute angle setting.
4. according to the silencing means in any described central air-conditioning air channel in the claim 1 to 3, it is characterized in that described sound-absorbing material is the cotton goods with certain thickness individual layer or lamination.
5. the silencing means in the central air-conditioning according to claim 4 air channel is characterized in that the surface of described sound-absorbing material object gas flow has ups and downs shape.
CN2011201079915U 2011-04-13 2011-04-13 Noise damping device in air duct of central air conditioner Expired - Lifetime CN202040956U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201079915U CN202040956U (en) 2011-04-13 2011-04-13 Noise damping device in air duct of central air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201079915U CN202040956U (en) 2011-04-13 2011-04-13 Noise damping device in air duct of central air conditioner

Publications (1)

Publication Number Publication Date
CN202040956U true CN202040956U (en) 2011-11-16

Family

ID=44968397

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201079915U Expired - Lifetime CN202040956U (en) 2011-04-13 2011-04-13 Noise damping device in air duct of central air conditioner

Country Status (1)

Country Link
CN (1) CN202040956U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105736478A (en) * 2016-03-30 2016-07-06 王刚 Sound insulation and noise reduction device of draught fan
CN106352516A (en) * 2016-10-31 2017-01-25 珠海格力电器股份有限公司 Variable air volume terminal and air conditioner
CN110595052A (en) * 2019-09-20 2019-12-20 武汉源海博创科技有限公司 Silencer with adjustable and excellent performance adapting to air inlet parameters
CN111924085A (en) * 2020-08-17 2020-11-13 上海外高桥造船有限公司 Special return air sound-deadening box

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105736478A (en) * 2016-03-30 2016-07-06 王刚 Sound insulation and noise reduction device of draught fan
CN106352516A (en) * 2016-10-31 2017-01-25 珠海格力电器股份有限公司 Variable air volume terminal and air conditioner
CN110595052A (en) * 2019-09-20 2019-12-20 武汉源海博创科技有限公司 Silencer with adjustable and excellent performance adapting to air inlet parameters
CN110595052B (en) * 2019-09-20 2022-03-18 宁波源海博创科技有限公司 Silencer with adjustable and excellent performance adapting to air inlet parameters
CN111924085A (en) * 2020-08-17 2020-11-13 上海外高桥造船有限公司 Special return air sound-deadening box
CN111924085B (en) * 2020-08-17 2022-08-16 上海外高桥造船有限公司 Special return air sound-deadening box

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CX01 Expiry of patent term

Granted publication date: 20111116

CX01 Expiry of patent term