CN208205320U - A kind of ventilated box - Google Patents
A kind of ventilated box Download PDFInfo
- Publication number
- CN208205320U CN208205320U CN201820803600.5U CN201820803600U CN208205320U CN 208205320 U CN208205320 U CN 208205320U CN 201820803600 U CN201820803600 U CN 201820803600U CN 208205320 U CN208205320 U CN 208205320U
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- sound
- cabinet
- absorbing
- box
- acoustic material
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Abstract
The utility model discloses a kind of ventilated box, including cabinet, the inside of cabinet has vented cavity, is provided with the air inlet and air outlet being connected to vented cavity on cabinet, is additionally provided with acoustic material on cabinet；It is characterized by: being fixedly installed a sound-absorbing box in the vented cavity of cabinet, sound-absorbing box side wall is the perforated plate for being abound with perforation, it is spaced apart between the lateral surface of sound-absorbing box and the medial surface of cabinet and forms sound-absorbing space, sound-absorbing space is provided with acoustic material, acoustic material is bonded and covers the medial surface of cabinet, is spaced between the medial surface of acoustic material and the lateral surface of sound-absorbing box and is formed with a cavity.The ventilated box of the utility model, Acoustic Wave Propagation medium frequency can not only be changed by acoustic material, sound absorbent perforated structure can also be constituted by " perforated plate " and cavity match on sound-absorbing box structure, play the role of reflection and absorbs sound wave, to substantially reduce noise when ventilated box uses, better noise reduction effect is obtained.
Description
Technical field
The utility model belongs to indoor ventilation equipment field, and in particular to a kind of ventilated box.
Background technique
Ventilated box is for the hearsay transfer device to room ventilation.
Existing ventilated box is CN204507239U, the technical solution of entitled " a kind of ventilated box peculiar to vessel " shaped like notification number.
Being somebody's turn to do " a kind of ventilated box peculiar to vessel " includes bellows, main air hose and controller, and main air hose is connect with bellows, and bellow is hollow rectangular
Body, bellows outer surface are equipped with silencing cotton, and bellows bottom surface is equipped with ventilation duct, and ventilation duct lower end is equipped with ventilation fence, in ventilation fence
More than one flabellum is rotatably installed, flabellum rotates under the control of the controller.Bellows surface is equipped with silencing cotton, can
Absorb the noise from ventilation equipment.
From the foregoing, it will be observed that existing ventilated box is to do puigging by installing silencing cotton on bellows surface, attempt reach every
The effect of sound.But in fact, sponge only change Acoustic Wave Propagation medium frequency, do not reach reflection and absorb sound wave
Purpose causes the effect of noise reduction sound insulation not ideal enough.
Based on this, applicant considers to design a kind of structurally reasonable, better ventilated box of noise reduction effect.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problem to be solved by the utility model is to how to provide a kind of knot
Structure is reasonable, the better ventilated box of noise reduction effect.
In order to solve the above-mentioned technical problem, the utility model uses the following technical solution:
A kind of ventilated box, including cabinet, the inside of the cabinet have vented cavity, are provided on the cabinet and lead to described
The air inlet and air outlet of wind chamber connection, are additionally provided with acoustic material on the cabinet；It is characterized by:
A sound-absorbing box is fixedly installed in the vented cavity of the cabinet, the sound-absorbing box side wall is to be abound with perforation
Perforated plate is spaced apart and is formed sound-absorbing space, the sound-absorbing between the lateral surface of the sound-absorbing box and the medial surface of the cabinet
Space is provided with the acoustic material, the acoustic material bonding and the medial surface for covering the cabinet, the acoustic material
Medial surface and the sound-absorbing box lateral surface between be spaced and be formed with a cavity.
It is nearly all simple using one layer of sponge to do puigging and reach sound insulation and imitate different from ventilated box currently on the market
The structure of fruit.
The ventilated box of the utility model, by the way that the structure of above-mentioned sound-absorbing box, cavity and acoustic material is arranged in box house,
Acoustic Wave Propagation medium frequency can not only be changed by acoustic material, additionally it is possible to by " perforated plate " on sound-absorbing box and empty
The structure that chamber matches constitutes sound absorbent perforated structure, play the role of reflection and absorbs sound wave, to substantially reduce ventilation
Noise when case uses, obtains better noise reduction effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the ventilated box of the utility model.
Fig. 2 is that sound-absorbing box is fixed on the structural schematic diagram on cabinet in the ventilated box of the utility model.
In the figure, it is marked as
1 cabinet: 101 air inlets, 102 air outlets；
2 acoustic materials；
3 sound-absorbing boxes；
4 cavitys；
Stud in 5；
6 screws；
7 partitions；
8 plenum chambers.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
When specific implementation: as shown in Figure 1 to Figure 2, a kind of ventilated box, including cabinet 1, the inside of the cabinet 1 have logical
Wind chamber is provided with the air inlet 101 and air outlet 102 being connected to the vented cavity on the cabinet 1, also sets on the cabinet 1
It is equipped with acoustic material 2；It is characterized by:
A sound-absorbing box 3 is fixedly installed in the vented cavity of the cabinet 1,3 side wall of sound-absorbing box is to be abound with to wear
The perforated plate in hole is spaced apart and is formed sound-absorbing space, institute between the lateral surface of the sound-absorbing box 3 and the medial surface of the cabinet 1
It states sound-absorbing space and is provided with the acoustic material 2, the bonding of acoustic material 2 and the medial surface for covering the cabinet 1, it is described
It is spaced between the medial surface of acoustic material 2 and the lateral surface of the sound-absorbing box 3 and is formed with a cavity 4.
Wherein, riveting has an interior stud 5 on the inside of the cabinet 1, the perforated plate pass through through perforation and with the internal screw thread
The screw 6 that the threaded hole of column is screwed on connected is fixed.
After adopting the above structure, perforated plate can be simplified and assembles fixed structure in cabinet 1, improve the assembly of perforated plate
Efficiency.
Wherein, the acoustic material 2 is polyester fiber acoustical cotton.
Polyester fibre acoustic panel (also referred to as " mineral wool ") highest sound-absorption coefficient in 125 to 4000HZ noise range reaches
0.9 or more, absorbing sound and lowering noise excellent effect.At the same time, acoustic material 2 is used as using " polyester fiber acoustical cotton ", also has and " protects
The features such as warm, fire-retardant, environmentally friendly, light body, easy processing, stabilization, shock resistance, easy maintenance ", can help to reduce ventilated box air-supply
Thermal losses.
Wherein, the perforation field on the perforated plate accounts for the 30%-45% of the plate face gross area, and three adjacent perforation are in positive three
Angular distribution, for the center between two neighboring perforation away from being 7 millimeters, the aperture of each perforation is 5 millimeters.
It using the layout structure in above-mentioned aperture and perforation, is not only convenient for quickly being punched out processing to plate, also has and supply
Noise penetrates the feature optimal with sound-absorbing effect.
Wherein, the cavity 4 with a thickness of 20-30 millimeters.
Through it has been found that under the premise of other structures are identical, when the thickness of cavity 4 lower than 20 millimeters or is higher than 30 millis
Rice, noise when ventilated box uses are higher than 45 decibels；Cavity 4 with a thickness of 20-30 millimeters, then noise when ventilated box use is
35 decibels or so, noise reduction effect is significant.
Wherein, the acoustic material 2 with a thickness of 20-30 millimeters.
Too thick acoustic material 2 can not only waste material and soundproof effect promotes also unobvious, too thin soundproof effect
Soundproof effect is again poor.Acoustic material 2 with a thickness of 20-30 millimeters, can have both to save and material and obtain good soundproof effect
The advantages of.
Wherein, the position barrier for being internally located at air inlet 101 and air outlet 102 of the sound-absorbing box 3 is fixedly installed one
Block partition 7；The partition 7 will be separated into air intake space and outlet air space inside the sound-absorbing box 3；Wherein, the air intake space
The neighbouring and air intake space that is connected to the air inlet 101 simultaneously constitutes plenum chamber 8, the outlet air spatial neighbor and with the outlet air
Mouth 102 is connected to；It is provided through multiple ventilation holes on the partition 7, the multiple ventilation hole is by the air intake space and outlet air
Space connection.
After adopting the above structure, can be reduced by the structure of " plenum chamber 8 " dynamic pressure, increase static pressure, steady air flow and
Airstream vibration is reduced, effect of more preferably blowing is obtained.
At the same time, the structure of above-mentioned plenum chamber 8 is also relatively simple, is easy to process, it is ensured that the quick of sound-absorbing box 3 adds
Work efficiency rate.
The above is only the utility model preferred embodiment, need to point out it is that those skilled in the art are not being departed from
Under the premise of the technical program, the technical solution for the several modifications and improvements made should equally be contemplated as falling within the claims and want
Seek the range of protection.
Claims (7)
1. a kind of ventilated box, including cabinet, the inside of the cabinet has vented cavity, is provided with and the ventilation on the cabinet
The air inlet and air outlet of chamber connection, are additionally provided with acoustic material on the cabinet；It is characterized by:
A sound-absorbing box is fixedly installed in the vented cavity of the cabinet, the sound-absorbing box side wall is the perforation for being abound with perforation
Plate is spaced apart and is formed sound-absorbing space, the sound-absorbing space between the lateral surface of the sound-absorbing box and the medial surface of the cabinet
Be provided with the acoustic material, the acoustic material bonding and the medial surface for covering the cabinet, the acoustic material it is interior
It is spaced between side and the lateral surface of the sound-absorbing box and is formed with a cavity.
2. ventilated box according to claim 1, it is characterised in that: the box inside riveting has interior stud, the perforation
Plate through perforation and with the threaded hole of the internal threaded column screw being connected that is screwed on by fixing.
3. ventilated box according to claim 1, it is characterised in that: the acoustic material is polyester fiber acoustical cotton.
4. ventilated box according to claim 1, it is characterised in that: the perforation field on the perforated plate accounts for the plate face gross area
30%-45%, adjacent three perforation are distributed in equilateral triangle, and the center between two neighboring perforation is each worn away from being 7 millimeters
The aperture in hole is 5 millimeters.
5. ventilated box according to claim 1, it is characterised in that: the cavity with a thickness of 20-30 millimeters.
6. ventilated box according to claim 1, it is characterised in that: the acoustic material with a thickness of 20-30 millimeters.
7. ventilated box according to claim 1, it is characterised in that: the sound-absorbing box is internally located at air inlet and air outlet
Position barrier be fixedly installed one piece of partition；The partition will be separated into air intake space inside the sound-absorbing box and outlet air is empty
Between；Wherein, the air intake space is neighbouring and the air intake space that is connected to the air inlet and constitutes plenum chamber, the outlet air space
It is neighbouring and be connected to the air outlet；Be provided through multiple ventilation holes on the partition, the multiple ventilation hole will it is described into
Wind space is connected to outlet air space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820803600.5U CN208205320U (en) | 2018-05-28 | 2018-05-28 | A kind of ventilated box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820803600.5U CN208205320U (en) | 2018-05-28 | 2018-05-28 | A kind of ventilated box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208205320U true CN208205320U (en) | 2018-12-07 |
Family
ID=64515760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820803600.5U Active CN208205320U (en) | 2018-05-28 | 2018-05-28 | A kind of ventilated box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208205320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111105663A (en) * | 2020-01-19 | 2020-05-05 | 海润新风（重庆）智能技术有限公司 | Silencing non-induction-port product test prototype |
-
2018
- 2018-05-28 CN CN201820803600.5U patent/CN208205320U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111105663A (en) * | 2020-01-19 | 2020-05-05 | 海润新风（重庆）智能技术有限公司 | Silencing non-induction-port product test prototype |
| CN111105663B (en) * | 2020-01-19 | 2024-05-14 | 海润新风（重庆）智能技术有限公司 | Noise elimination type air gap-free product test sample machine |
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