CN203391778U - Noise elimination structure of cab delivery conduit of railway vehicle - Google Patents
Noise elimination structure of cab delivery conduit of railway vehicle Download PDFInfo
- Publication number
- CN203391778U CN203391778U CN201320389232.1U CN201320389232U CN203391778U CN 203391778 U CN203391778 U CN 203391778U CN 201320389232 U CN201320389232 U CN 201320389232U CN 203391778 U CN203391778 U CN 203391778U
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- air
- delivery conduit
- noise elimination
- elimination structure
- cab
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Abstract
The utility model relates to a noise elimination structure of a cab delivery conduit of a railway vehicle. The noise elimination structure comprises the delivery conduit which is arranged along the direction of the vehicle, wherein the rear end of the delivery conduit is connected with an air outlet of an air conditioner; a microwell plate is transversely arranged inside the delivery conduit and is close to the front end part of the delivery conduit; a plenum chamber is formed between the microwell plate and the inner wall of the front end of the delivery conduit; air outlets are respectively formed at two sides of the plenum chamber and connected with a cab air supply outlet. By virtue of the noise elimination structure, dynamic pressure air supply is changed into static pressure air supply, the propagation distance of a sound wave is prolonged, sound energy is quickly attenuated in a propagation process by the silencing effects of the microwell plate and the plenum chamber, and thus, noise is effectively reduced. An experiment shows that an obvious noise reduction effect is obtained by the structure applied to an air-conditioning system of a cab; the noise elimination structure is suitable for air-conditioning air supply of cabs of various railway vehicles, or mechanical ventilating of similar places.
Description
Technical field
The utility model relates to a kind of railway vehicle cab air delivery duct noise elimination structure, belongs to railway vehicle air conditioner systems technology field.
Background technology
The traditional form in railway vehicle cab air-conditioning road is generally the straight-through structure of square-section, and air intake and air-out lay respectively at the two ends of air delivery duct, and air intake is connected with ventilating set outlet, and outlet air end is connected with driver's cab air outlet.This kind of wind pushing form is because the installation site of ventilating set is conventionally very near apart from driver's cab, and air outlet is positioned on the axis of ventilating set outlet, and wind speed is higher, and sound wave enters Hou Jiyan air channel, air channel and directly imports driver's cab into, cause driver's room noise excessive, and then chaufeur work is formed and disturbed.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the above-mentioned shortcoming of prior art, and a kind of railway vehicle cab air delivery duct noise elimination structure is provided, and it effectively reduces noise, improves driver's working environment.
In order to solve above technical matters, the railway vehicle cab air delivery duct noise elimination structure that the utility model provides, it is characterized in that thering is the air delivery duct of arranging along direction of traffic, the rear end of described air delivery duct is connected with air-conditioner air outlet, in described air delivery duct, near its front end position, be horizontally arranged with a microwell plate, between described microwell plate and air delivery duct front inner wall, form plenum chamber, the both sides of described plenum chamber are respectively arranged with air outlet, and described air outlet is connected with driver's cab air outlet.
Further, the pore diameter range of described microwell plate is: 0.4mm-10mm.
Further, described plenum chamber is cube shaped.
This kind of structure of the utility model changed dynamic pressure type air-supply into static pressure air-supply, and extended the propagation distance of sound wave, by the noise elimination effect of microwell plate and plenum chamber, makes acoustic energy decay rapidly in communication process, thereby effectively reduces noise.Our experiments show that, this structure is applied in air conditioner in cab system, has obtained obvious noise reduction.Be applicable to the mechanical ventilation of various railway vehicle cab air-conditioning ，Huo similar site.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is the utility model railway vehicle cab air delivery duct noise elimination structure birds-eye view.
The specific embodiment
As shown in Figure 1, the present embodiment railway vehicle cab air delivery duct noise elimination structure, comprise the air delivery duct 4 of arranging along direction of traffic, the rear end 5 of air delivery duct 4 is connected with air-conditioner air outlet, air delivery duct 4 is interior is horizontally arranged with a microwell plate 3 near its front end position, between microwell plate 3 and air delivery duct front inner wall, form the plenum chamber 2 that is cube shaped, the both sides of plenum chamber 2 are respectively arranged with air outlet 1, and air outlet 1 is connected with driver's cab air outlet.In the present embodiment, the pore diameter range of microwell plate is: 0.4mm-10mm.
Our experiments show that, use after the utility model, driver's cab has been obtained obvious noise reduction.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (3)
1. railway vehicle cab air delivery duct noise elimination structure, it is characterized in that thering is the air delivery duct of arranging along direction of traffic, the rear end of described air delivery duct is connected with air-conditioner air outlet, in described air delivery duct, near its front end position, be horizontally arranged with a microwell plate, between described microwell plate and air delivery duct front inner wall, form plenum chamber, the both sides of described plenum chamber are respectively arranged with air outlet, and described air outlet is connected with driver's cab air outlet.
2. railway vehicle cab according to claim 1 air delivery duct noise elimination structure, is characterized in that: the pore diameter range of described microwell plate is: 0.4mm-10mm.
3. railway vehicle cab according to claim 1 air delivery duct noise elimination structure, is characterized in that: described plenum chamber is cube shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320389232.1U CN203391778U (en) | 2013-06-29 | 2013-06-29 | Noise elimination structure of cab delivery conduit of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320389232.1U CN203391778U (en) | 2013-06-29 | 2013-06-29 | Noise elimination structure of cab delivery conduit of railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203391778U true CN203391778U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201320389232.1U Expired - Lifetime CN203391778U (en) | 2013-06-29 | 2013-06-29 | Noise elimination structure of cab delivery conduit of railway vehicle |
Country Status (1)
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| CN (1) | CN203391778U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253156A (en) * | 2015-10-12 | 2016-01-20 | 南车南京浦镇车辆有限公司 | Air supply structure of air-conditioning set for rail vehicle |
| CN105292155A (en) * | 2015-10-12 | 2016-02-03 | 石家庄国祥运输设备有限公司 | Low-noise air supply device matched with air conditioning unit of railway vehicle |
| CN106004896A (en) * | 2016-06-29 | 2016-10-12 | 中车南京浦镇车辆有限公司 | Induced draft channel structure of rail traffic vehicle cab |
| CN112797485A (en) * | 2019-11-13 | 2021-05-14 | 青岛海尔智能技术研发有限公司 | Air conditioner air-out subassembly and air conditioner |
| US11378305B2 (en) | 2016-10-05 | 2022-07-05 | Bombardier Inc. | Noise reducing air duct |
-
2013
- 2013-06-29 CN CN201320389232.1U patent/CN203391778U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253156A (en) * | 2015-10-12 | 2016-01-20 | 南车南京浦镇车辆有限公司 | Air supply structure of air-conditioning set for rail vehicle |
| CN105292155A (en) * | 2015-10-12 | 2016-02-03 | 石家庄国祥运输设备有限公司 | Low-noise air supply device matched with air conditioning unit of railway vehicle |
| CN106004896A (en) * | 2016-06-29 | 2016-10-12 | 中车南京浦镇车辆有限公司 | Induced draft channel structure of rail traffic vehicle cab |
| CN106004896B (en) * | 2016-06-29 | 2018-06-26 | 中车南京浦镇车辆有限公司 | Track traffic vehicle drivers' cab wind channel structure |
| US11378305B2 (en) | 2016-10-05 | 2022-07-05 | Bombardier Inc. | Noise reducing air duct |
| CN112797485A (en) * | 2019-11-13 | 2021-05-14 | 青岛海尔智能技术研发有限公司 | Air conditioner air-out subassembly and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210031 Nanjing province high tech Industrial Development Zone, Taishan Park, North Pearl Road, No. 68 Patentee after: CRRC NANJING PUZHEN Co.,Ltd. Address before: 210031 Nanjing province high tech Industrial Development Zone, Taishan Park, North Pearl Road, No. 68 Patentee before: CSR NANJING PUZHEN Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |