CN200980632Y - Tubular silencer for vacuum cleaner - Google Patents
Tubular silencer for vacuum cleaner Download PDFInfo
- Publication number
- CN200980632Y CN200980632Y CN 200620149009 CN200620149009U CN200980632Y CN 200980632 Y CN200980632 Y CN 200980632Y CN 200620149009 CN200620149009 CN 200620149009 CN 200620149009 U CN200620149009 U CN 200620149009U CN 200980632 Y CN200980632 Y CN 200980632Y
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- CN
- China
- Prior art keywords
- dividing plate
- dust catcher
- hush pipe
- acoustic silencer
- tubular acoustic
- 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
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Abstract
A silencer of duct shape for dust collector is in the art of component and appurtenance technique for dust collector, characterized by comprising a baffle, wherein silencing ducts are arranged on the baffle, and chimneys inside the silencing ducts passing the baffle form air channels. The silencer of duct shape for dust collector has a simple and rational designation and an extremely small airflow resistance, capable of efficiently reducing noise of the air flowed out and, compared with the prior silencers, realizing a noise reduction figure of 2-5 db without influencing the entire efficiency of the dust collector, and can be applied in varieties of domestic and commercial vacuum dust collectors for noise reduction.
Description
Technical field
The utility model belongs to the part or the appurtenance technical field of dust catcher, relates in particular to a kind of silencing means of vacuum cleaner.
Background technology
The operation principle of vacuum cleaner is, utilize the motor drives impeller to rotate at a high speed, make and form parital vacuum in the dust storage chamber, after indoor and outdoor pressure reduction is increased to a certain degree, dust just is inhaled in the dirt bag with air-flow, after filtration, dust separation is retained in the dirt bag, discharge the pure air after filtering at last.Because the high-speed gas of impeller generation can produce a kind of very strong aerodynamic noise in process of flowing, the high speed pure air of preferably discharging produces noise because of flow separation on every side causes pressure to change simultaneously.Therefore need the corresponding silencing means of configuration to reduce noise, improve comfort.
Existing noise absorption unit of dust collector has adopted multiple mode in order to reduce and to abate the noise, and the most frequently used is sound-absorbing material to be set or to change the gas flow direction by force at air-out passage or exit.The Chinese patent CN2256956 of bulletin provided a kind of fuzz tone dust catcher as on May 14th, 1997, and rubber vibrationproof circle promptly is set between motor fan seat and motor, was provided with heat dissipating housing and multilayer bell shape silencer cover above motor; The vibrationproof sealing ring is set below the motor fan seat, is fixed with multilayer bell shape silencer cover; Heat dissipating housing is the helmet hat, and periphery offers the heat radiation through hole; The bell shape silencer cover is a 3-4 layer bell shape housing, be bearing on the rubber vibrationproof circle, inner walls is pasted with stick shape sound-absorbing material, air stream outlet mutual dislocation, constitute the air-flow labyrinth channel, make air communication cross the purpose that each layer bell shape silencer cover realizes reducing noise.The silencer used for dust collector of on January 14th, 2004 bulletin and for example, this device comprises a closed shell, housing is provided with air intake and outlet air end, be provided with silencing cavity between air intake and the outlet air end, air intake and outlet air end are provided with air intake district and the wind outlet area of being made up of the pipe-like exhaust hole that gathers, and air intake sectional area and air-out sectional area are respectively less than the area of section of silencing cavity; This device concentrates on one with multiple noise-reducing structure, is installed on the exhaust outlet of dust catcher, is used for reducing the noise that dust catcher sends in use.Though above-mentioned technology has reduced the air draft noise to a certain extent, there is following shortcoming simultaneously.At first, the gas sound-absorbing material of flowing through can make gas-flow resistance increase, and overall efficiency reduces, the motor radiating weak effect; Secondly, the mode by stopping that facility changes airflow direction or prolongs gas passage can cause ventilation not smooth, and dust catcher suction inlet air pressure reduces.Though therefore aforesaid way can reach the purpose that reduces noise, it is a cost with other performance of sacrificial section.
The utility model content
The purpose of this utility model provides a kind of simple in structure, and the effect to dust catcher does not have a negative impact, and has the excellent dust catcher tubular acoustic silencer of subduing noise result, has solved the difficult problem that existing dust catcher muffling device is faced.
For realizing above-mentioned purpose, the technical solution adopted in the utility model is as follows:
A kind of dust catcher tubular acoustic silencer is characterized in that it comprises a dividing plate, arranges on the dividing plate hush pipe is set, and the path in the hush pipe is run through shelf-shaped and become air exhaust passage.
Described hush pipe is random or be evenly distributed on the end face of dividing plate.
Described dividing plate is circular dull and stereotyped, and hush pipe is arranged perpendicular to dividing plate and is provided with, and hush pipe is that the center of circle is symmetrically distributed with the center of dividing plate.
Described hush pipe is the peripheral edge that inside and outside two circular arcs are arranged in dividing plate.
Described hush pipe is a cylindrical tube.
Dividing plate and hush pipe are ternary one third elastomeric material, and installing hole is set on the dividing plate, are used for fixing at dust catcher exhaust outlet place.
A kind of dust catcher that adopts above-mentioned tubular acoustic silencer is characterized in that it includes a motor.
One dividing plate of the described tubular acoustic silencer of this dust catcher has first surface and second surface, and its first surface and motor lean.
The described hush pipe of this dust catcher is spaced and is formed on the dividing plate, and is arranged at all sides of motor.
The one end end face of the described hush pipe of this dust catcher and the second surface coplane of dividing plate.
This tubular acoustic silencer utilizes the rectified action of hush pipe and dividing plate, produces turbulent flow by changing gas flow rate, reduces effectively that wind is made an uproar and resonance noise.Hush pipe can be that cylindrical tube also can the side's of being cylindrical tube, and hush pipe can random or even distribution on dividing plate, and the shape of hush pipe and distribution situation are little to the influential effect that reduces noise.In order to prevent the needs with die sinking, also be convenient to suitability for industrialized production, hush pipe to be designed to cylindrical tube, hush pipe distributes on dividing plate symmetrically.The quantity of hush pipe and its path sectional area have certain influence to the size of exhaust air rate, can adjust accordingly according to the suction air volume standard of dust catcher.
This tubular acoustic silencer is installed on the exhaust outlet of dust catcher, and its dividing plate end that is arranged with hush pipe flows out direction towards gas.After running into the dividing plate that is arranged with hush pipe, pure air behind the process dirt bag filtration carries out rectification, the turbulent flow that produces can fall the damping of air-flow sound wave, the noise of fan blade and high velocity air is reduced greatly, and the gas behind over commutation is discharged by the other end of dividing plate through the path of hush pipe again.
This dust catcher can be by ternary one third rubber integral die moulding with tubular acoustic silencer, and this elastomeric material has elasticity and certain micropore, also can play the certain absorption effect to noise, can not produce resistance to air-flow simultaneously.
The beneficial effects of the utility model are that this dust catcher is simple and reasonable with tubular acoustic silencer, and is minimum to the resistance of air-flow, and can effectively reduce the noise of eluting gas, compare with existing noise absorption unit of dust collector, and it can realize noise reduction value 2-5db; Can not influence simultaneously the overall efficiency of dust catcher.This dust catcher can be widely used in the noise reduction noise reduction of various family expenses or commercial vacuum cleaner with tubular acoustic silencer.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further elaborated.
Fig. 1 is the perspective view of the utility model embodiment;
Fig. 2 is the application installation diagram of the utility model embodiment,
Fig. 3 is the cut-away section structural representation of dust catcher in the utility model.
The specific embodiment
This dust catcher is installed on the exhaust outlet base 9 of dust catcher with tubular acoustic silencer 1, be fixed in an end of staving 8 behind the outside suit rubber motor seal circle 7 of motor 6, tubular acoustic silencer 1 is arranged on staving 8 other ends, and the dividing plate end face of hush pipe flows out direction towards gas.When dust catcher is worked, pure air high velocity stream behind the process dirt bag filtration is to exhaust outlet, carry out effective rectification after running into dividing plate and hush pipe, sound wave is damped to be fallen, air-flow and eddy current noise that the fan blade rotation causes weaken greatly, gas behind over commutation flows out through the path of hush pipe, and noise is effectively cut down.The hush pipe of elastomeric material and dividing plate carry out good absorption to noise, can not produce big resistance to gas simultaneously.
Rationally compact the setting effectively reduced to the air draft noise minimum under the situation that does not increase exhaust resistance between the noise reduction facility of this dust catcher and motor.
Claims (10)
1. a dust catcher tubular acoustic silencer is characterized in that, it comprises a dividing plate, arranges on the dividing plate hush pipe is set, and the path in the hush pipe is run through shelf-shaped and become air exhaust passage.
2. dust catcher tubular acoustic silencer according to claim 1 is characterized in that, described hush pipe is random or be evenly distributed on the end face of dividing plate.
3. dust catcher tubular acoustic silencer according to claim 1 is characterized in that, described dividing plate is circular dull and stereotyped, and hush pipe is arranged perpendicular to dividing plate and is provided with, and hush pipe is that the center of circle is symmetrically distributed with the center of dividing plate.
4. dust catcher tubular acoustic silencer according to claim 3 is characterized in that, described hush pipe is the peripheral edge that inside and outside two circular arcs are arranged in dividing plate.
5. dust catcher tubular acoustic silencer according to claim 1 is characterized in that, described hush pipe is a cylindrical tube.
6. dust catcher tubular acoustic silencer according to claim 1 is characterized in that, dividing plate and hush pipe are ternary one third elastomeric material, and installing hole is set on the dividing plate, are used for fixing at dust catcher exhaust outlet place.
7. a dust catcher that adopts the described tubular acoustic silencer of claim 1 is characterized in that it includes a motor.
8. dust catcher according to claim 7 is characterized in that, a dividing plate of described tubular acoustic silencer has first surface and second surface, and its first surface and motor lean.
9. dust catcher according to claim 8 is characterized in that described hush pipe is spaced and is formed on the dividing plate, and is arranged at all sides of motor.
10. dust catcher according to claim 8 is characterized in that, an end end face of described hush pipe and the second surface coplane of dividing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620149009 CN200980632Y (en) | 2006-10-18 | 2006-10-18 | Tubular silencer for vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620149009 CN200980632Y (en) | 2006-10-18 | 2006-10-18 | Tubular silencer for vacuum cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200980632Y true CN200980632Y (en) | 2007-11-28 |
Family
ID=38907800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620149009 Expired - Lifetime CN200980632Y (en) | 2006-10-18 | 2006-10-18 | Tubular silencer for vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200980632Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102670127A (en) * | 2011-03-09 | 2012-09-19 | 乐金电子(天津)电器有限公司 | Noise reduction backboard under motor box of dust collector |
| CN103104518A (en) * | 2012-12-13 | 2013-05-15 | 昆山俊润通风降温设备有限公司 | Negative-pressure fan |
| CN107269550A (en) * | 2017-06-16 | 2017-10-20 | 宁波大叶园林设备股份有限公司 | Have lithium battery drive motor ring Zhou Binglie filtering muffling air ducts blows leaf machine |
-
2006
- 2006-10-18 CN CN 200620149009 patent/CN200980632Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102670127A (en) * | 2011-03-09 | 2012-09-19 | 乐金电子(天津)电器有限公司 | Noise reduction backboard under motor box of dust collector |
| CN102670127B (en) * | 2011-03-09 | 2016-06-29 | 南京乐金熊猫电器有限公司 | Noise reduction bottom board under motor of dust collector box |
| CN103104518A (en) * | 2012-12-13 | 2013-05-15 | 昆山俊润通风降温设备有限公司 | Negative-pressure fan |
| CN107269550A (en) * | 2017-06-16 | 2017-10-20 | 宁波大叶园林设备股份有限公司 | Have lithium battery drive motor ring Zhou Binglie filtering muffling air ducts blows leaf machine |
| CN107269550B (en) * | 2017-06-16 | 2019-08-13 | 宁波大叶园林设备股份有限公司 | Tool lithium battery drive motor ring Zhou Binglie filtering muffling air duct blows leaf machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071128 |
|
| EXPY | Termination of patent right or utility model |