CN102647045A - Noise reduction structure for motor cabin of handheld blowing-suction machine - Google Patents
Noise reduction structure for motor cabin of handheld blowing-suction machine Download PDFInfo
- Publication number
- CN102647045A CN102647045A CN2012101348126A CN201210134812A CN102647045A CN 102647045 A CN102647045 A CN 102647045A CN 2012101348126 A CN2012101348126 A CN 2012101348126A CN 201210134812 A CN201210134812 A CN 201210134812A CN 102647045 A CN102647045 A CN 102647045A
- Authority
- CN
- China
- Prior art keywords
- motor
- noise
- motor cabin
- motor bin
- noise reduction
- 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
Links
Images
Landscapes
- Motor Or Generator Frames (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a noise reduction structure for a motor cabin of a handheld blowing-suction machine, which is mainly used for reducing noises directly felt by operators and comprises a motor cabin for holding a motor and an air inlet for cooling the motor. The noise reduction structure is characterized in that the air inlet is arranged at the lower position of the motor cabin, a noise blocking plate is mounted in the motor cabin, an airflow channel is formed in the motor cabin by means of the noise blocking plate, one end of the airflow channel leads to the inside of the motor cabin, the other end of the airflow channel leads to the air inlet, the airflow channel is of a circuitous labyrinth structure, and noise absorption cotton is arranged on the inner wall of the airflow channel. The noise reduction structure for the motor cabin of the handheld blowing-suction machine has the advantages that mechanical noises produced by the working motor and noises produced by airflow disturbance are greatly attenuated by the actions such as reflection, absorption and the like of the airflow channel of the optimized motor cabin, most of the attenuated noises are led out of the air inlet on the lower portion of the motor cabin, the noises directly received by the operators are effectively reduced, the structure is simple, the cost is low, and the noise reduction structure is reliable and effective.
Description
Technical field
The present invention relates to a kind of hand-hold type blower that is used for foreign material such as pressure-vaccum leaf, fragment, particularly relate to the noise-reducing structure of this hand-hold type blower motor bin.
Background technology
The scope of application of hand-hold type blower is very extensive, is applicable to family's cleaning, highway maintenance construction, lawn and gardens cleaning etc.But the present big problem of hand-hold type blower ubiquity noise on the market; FORMAL PARAMETER is arbitrarily downgraded between 103 ~ 105db; Wherein motor bin partly is one of main noise source that produces noise; Because commercially available hand-hold type blower is on two sides of motor bin, to offer to be used for the air admission hole (common for gill type hole) of cooling motor, adopt the motor bin of this structure, the machinery noise that produces during machine operation can be directly passed to the operator through the air admission hole on the side with the noise of flow perturbation generation; Make the operator afford bigger noise pollution, make the operator produce discomfort easily.
Summary of the invention
The objective of the invention is to,, provide a kind of motor bin is carried out structure optimization, thereby can effectively reduce the motor bin noise-reducing structure of blower noise to the bigger problem of above-mentioned conventional motor bin noise.
To achieve these goals, the technical scheme of the present invention's employing is:
Hand-hold type blower motor bin noise-reducing structure comprises the motor bin and the air admission hole that is used for cooling motor that are used to hold motor, and it is characterized in that: described air admission hole is arranged at the lower position of motor bin.
Further, be provided with the resistance soundboard in the described motor bin, said resistance soundboard forms airflow path in motor bin, and said airflow path one end leads in the motor bin, and the other end leads to air admission hole.
Further, described airflow path is arranged to tortuous labyrinth type.
Further, described airflow path inwall is provided with acoustical cotton.
Adopt the hand-hold type blower of motor bin noise-reducing structure of the present invention, have following beneficial effect:
1) noise that machinery noise that produces during machine operation and flow perturbation produce obtains bigger decay after through effects such as the reflection of the airflow path of the motor bin after optimizing, absorption; Noise major part after the decay derives from the air admission hole of motor bin bottom, and the noise that the operator directly receives will effectively be reduced.
2) simple in structure, with low cost, effectively reliable.
Description of drawings
The front schematic view of Fig. 1 motor bin noise-reducing structure of the present invention.
Fig. 2 has the blower overall structure sketch map of motor bin noise-reducing structure of the present invention.
Embodiment
Like Fig. 1, shown in 2; Blower 10 comprises chain-drive section 11 and airduct 12; Said chain-drive section 11 comprises left half shell 13 and right half shell (not shown), and left half shell 13 surrounds with right half shell and forms motor bin 14, in the said motor bin 14 the motor (not shown) is installed.
Be provided with air admission hole 3 in the bottom of motor bin 14; During machine operation, cooling air can get into motor bin 14 from air admission hole 3 under the suction function that the electric motor fan rotation produces; Flow out through the exhaust vent 5 of motor then, thereby realize giving the motor cooling purpose from motor bin 14.
Through air admission hole 3 being arranged on the lower position of motor bin 14, the noise that can be significantly the machinery noise and the flow perturbation of motor be produced through air admission hole 3 towards under direction derive, thereby the noise that the operator is directly experienced reduces.
In order further to reduce the noise that the operator experiences, in motor bin 14, be provided with resistance soundboard 1, said resistance soundboard 1 forms airflow path in motor bin 14, and said airflow path one end leads in the motor bin 14, and the other end leads to air admission hole 3.Preferably, said airflow path is arranged to tortuous labyrinth type.
In order further to reduce the noise that the operator experiences, also be provided with acoustical cotton on the described airflow path inwall, can further reduce noise.
The undeclared part of other that the present invention relates to is identical with prior art.
Claims (4)
1. hand-hold type blower motor bin noise-reducing structure comprises the motor bin and the air admission hole that is used for cooling motor that are used to hold motor, and it is characterized in that: described air admission hole is arranged at the lower position of motor bin.
2. motor bin noise-reducing structure according to claim 1 is characterized in that: be provided with the resistance soundboard in the described motor bin, said resistance soundboard forms airflow path in motor bin, and said airflow path one end leads in the motor bin, and the other end leads to air admission hole.
3. motor bin noise-reducing structure according to claim 2 is characterized in that: described airflow path is arranged to tortuous labyrinth type.
4. according to claim 2 or 3 described motor bin noise-reducing structures, it is characterized in that: described airflow path inwall is provided with acoustical cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101348126A CN102647045A (en) | 2012-05-04 | 2012-05-04 | Noise reduction structure for motor cabin of handheld blowing-suction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101348126A CN102647045A (en) | 2012-05-04 | 2012-05-04 | Noise reduction structure for motor cabin of handheld blowing-suction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102647045A true CN102647045A (en) | 2012-08-22 |
Family
ID=46659688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101348126A Pending CN102647045A (en) | 2012-05-04 | 2012-05-04 | Noise reduction structure for motor cabin of handheld blowing-suction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102647045A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648962A (en) * | 2014-11-28 | 2016-06-08 | 苏州宝时得电动工具有限公司 | Blowing and sucking device |
| CN106049327A (en) * | 2015-04-10 | 2016-10-26 | 苏州宝时得电动工具有限公司 | Blowing and sucking device and air blowing device |
| CN106149603A (en) * | 2014-11-28 | 2016-11-23 | 苏州宝时得电动工具有限公司 | Suction and blowing device |
-
2012
- 2012-05-04 CN CN2012101348126A patent/CN102647045A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11109541B2 (en) | 2014-04-10 | 2021-09-07 | Positec Power Tools (Suzhou) Co., Ltd. | Blow-suction device with operation mode adjustment mechanism |
| CN105648962A (en) * | 2014-11-28 | 2016-06-08 | 苏州宝时得电动工具有限公司 | Blowing and sucking device |
| CN106149603A (en) * | 2014-11-28 | 2016-11-23 | 苏州宝时得电动工具有限公司 | Suction and blowing device |
| US10398095B2 (en) | 2014-11-28 | 2019-09-03 | Positec Power Tools (Suzhou) Co., Ltd | Blowing-suction device |
| CN106049327A (en) * | 2015-04-10 | 2016-10-26 | 苏州宝时得电动工具有限公司 | Blowing and sucking device and air blowing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6090393B2 (en) | Air conditioner | |
| CN205160270U (en) | Motor amortization wind channel | |
| CN102647045A (en) | Noise reduction structure for motor cabin of handheld blowing-suction machine | |
| JP2011237107A (en) | Air purifier | |
| CN202718904U (en) | Structure of multi-functional bladeless fan | |
| PL1865103T3 (en) | Drying machine comprising a noise absorption device | |
| JP4987103B2 (en) | Air conditioner | |
| CN201028673Y (en) | Near absorption type fume exhauster | |
| RU2007140159A (en) | A VACUUM CLEANER | |
| CN202634164U (en) | Noise reduction structure for motor cabin of handheld blowing-suction machine | |
| CN201230527Y (en) | Mosquito killer | |
| CN206054396U (en) | A kind of boiler blower side suction silencer | |
| CN201696356U (en) | Built-in cone-shaped muffler device | |
| JP4829556B2 (en) | Low noise fan device for blower | |
| JP5799995B2 (en) | Air cleaner | |
| CN203858860U (en) | Novel soundproof cover | |
| CN205445945U (en) | U type of oxygenerator moves towards heat dissipation noise reduction passageway | |
| JP2020079692A (en) | Air cleaner | |
| CN205174499U (en) | High efficiency smoke ventilator that easily keeps a public place clean | |
| CN217402627U (en) | Volute, range hood and integrated kitchen | |
| JP2013034593A5 (en) | ||
| CN106725097A (en) | A kind of fan noise damping device | |
| CN203051240U (en) | Low-noise cabinet type centrifugal fan | |
| CN114027750B (en) | Air duct structure and cleaning equipment | |
| DE502008003311D1 (en) | GROUND CARE, ESPECIALLY HOUSEHOLD VACUUM CLEANER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120822 |