CN205895544U - Enhancement mode air conditioner muffler of making an uproar falls - Google Patents
Enhancement mode air conditioner muffler of making an uproar falls Download PDFInfo
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- CN205895544U CN205895544U CN201620917416.4U CN201620917416U CN205895544U CN 205895544 U CN205895544 U CN 205895544U CN 201620917416 U CN201620917416 U CN 201620917416U CN 205895544 U CN205895544 U CN 205895544U
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- pipe
- expansion
- air conditioner
- expansion tube
- enhancement mode
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Abstract
The utility model discloses an enhancement mode air conditioner muffler of making an uproar falls belongs to compressor accessory field. It includes intake pipe, expansion pipe and outlet duct, the one end of expansion pipe seal, other end throat gradually forms the export department, the expansion pipe adopts nonrust steel pipe, the intake pipe be the copper pipe, during its inserted the expansion pipe from the lateral wall at expansion pipe middle part perpendicularly, the one end that the expansion pipe was inserted to the intake pipe was provided with tubaeform flaring portion, is equipped with the tooth's socket on the terminal surface of flaring portion, the outlet duct be the copper pipe, its one end is connected with the expansion pipe through the welding in inserting the export department of expansion pipe. The utility model discloses an optimize the structure of intake pipe for acoustic wave diffusion stack behind the gaseous entering muffler of refrigerant changes acoustic waveform, reaches the effect of degree of depth amortization, and the gaseous impact force that produces of refrigerant is less, has simple structure, reasonable in design, the easy advantage of making.
Description
Technical field
This utility model belongs to compression machine part field, more particularly, it relates to a kind of noise reduction enhancement mode air conditioner muffler.
Background technology
Refrigeration plant is conventional household electrical appliance in people's daily life, its because being affected in itself by its system, in compressor
During normal work, system can produce a series of noise, specifically includes that cold-producing medium eruption, flowing sound, compressor operating
Sound, system unit (condenser, vaporizer) resonance sound.Deafener is the most frequently used effective reduction noise in current refrigeration plant
Part, its species is a lot, but studies carefully its noise elimination mechanism, they can be divided into six kinds of main types again, that is, resistive muffler,
Resistant noise-reducing device, impedance complex formula deafener, microperforated panel deafener, aperture deafener and active deafener.
At present, it is most commonly used that resistant noise-reducing device in air-conditioning, be to be combined by the pipe of abrupt interface and room, just as being
One acoustic filter, similar to electrical filter, each cell with pipe is a mesh of wave filter, the air in pipe
Quality is equivalent to inductance and resistance electrically, referred to as acoustic mass and acoustic resistance.Volume of air in cell is equivalent to electrically
Electric capacity, referred to as acoustic compliance.Similar with electrical filter, each cell with pipe has the natural frequency of oneself.Each when including
When the sound wave of kind frequency content enters first short tube, the only sound wave of some frequencies near first mesh natural frequency
Second short tube mouth could be reached by mesh, and the sound wave of other frequency then can not possibly pass through mesh, can only be in cell
Middle roundtrip, therefore, our this structures having filter function to sound wave are called acoustic filter.Choose suitable pipe and room
It is combined just filtering the noise of some frequency contents, thus reaching the purpose of noise elimination.
Existing air conditioner muffler is mainly by expansion tube, and air inlet pipe and the escape pipe group being welded on expansion tube two ends
Become, the expansion tube that noise diffuses to major diameter from the air inlet pipe of minor diameter reaches noise reduction, but the disappearing of this structure at present
Sound device erasure effect is undesirable, there is refrigerant gas impulsive force greatly, the not good problem of erasure effect.For solving the above problems,
The applicant have been directed to before this in this respect improve and applied for patent, number of patent application is:
201220564438.9, entitled: a kind of Novel muffler, it passes through to increase air inlet inner tube, after air-flow enters deafener, first
First play erasure effect at inner spout, air-flow forms backflow in inner spout, flow velocity weakens, to reach noise reduction and to reduce air-flow punching
Hit effect.In addition, the other Application No. of the applicant: 201220536224.0, entitled: a kind of noise reduction of dual noise reduction
The patent of device, is also by increasing inner tube, after air-flow enters, plays erasure effect first, then swollen in microdilatancy pipe
Play erasure effect in tube expansion, through noise reduction twice, improve erasure effect.
Above two scheme reaches enhancing erasure effect to a certain extent, but also increases the structure of deafener simultaneously
Complexity, production cost is high, and more importantly erasure effect is still undesirable, also there is stronger gas impact, and reduction disappears
In the life-span of sound device, can be reduced it is impossible to meet use demand using rear erasure effect for a long time.
Content of the invention
1st, problem to be solved
The refrigerant gas impulsive force being subject to for existing air conditioner muffler is stronger, and erasure effect is undesirable, and structure is relatively
The complicated problem with high processing costs, this utility model provides a kind of noise reduction enhancement mode air conditioner muffler, by optimizing air inlet pipe
Structure so that refrigerant gas enter deafener after sound wave diffusion superposition, change acoustic waveform, reach the effect of depth noise reduction
Really, the scheme (Application No. 201220564438.9 and 201220536224.0) of two kinds of applications in background technology, noise reduction are compared
Effect can improve more than 7%, and the impulsive force that refrigerant gas produce is also relatively reduced, and structure is also simpler.
2nd, technical scheme
For solving the above problems, this utility model adopts the following technical scheme that.
A kind of noise reduction enhancement mode air conditioner muffler, including air inlet pipe and expansion tube；One end insertion of described air inlet pipe is swollen
In tube expansion；One end that described air inlet pipe inserts expansion tube is provided with flaring expansion mouth, and the end face of expansion mouth is provided with tooth
Groove.The end face that in prior art, air inlet pipe inserts expansion tube one end is all plane, and this programme arranges loudspeaker in air inlet tube end
The expansion mouth of shape, and teeth groove is designed on the end face of expansion mouth, simple improvement but has an unexpected effect, its effect producing
Compare that existing planar design is more significantly, when to study carefully its principle be the end that refrigerant gas reach air inlet pipe, first pass through loudspeaker
The expansion mouth of shape gradually expands, and the teeth groove then reaching end is to the further diverging expansion of surrounding and repeatedly anti-in expansion tube again
Penetrate superposition, acoustic waveform changes, so that noise reduction is realized in the rapid decay of noise；Further, since refrigerant gas enter expanding
Pipe internal diffusion is wider faster, and the impulsive force that it produces is relatively small, and vibrations can reduce, and is conducive to the extension device life-span.
As further improvement of the utility model, the slot form on described expansion mouth is triangle or rectangle.Tooth
The selection of groove shape is to consider erasure effect and difficulty of processing obtains, and under the premise of reducing difficulty of processing, reaches best noise reduction
Effect.
As further improvement of the utility model, described air inlet pipe is inserted perpendicularly into swollen the side wall in the middle part of expansion tube
In tube expansion.Existing standard, its air inlet pipe be all from the end of expansion tube insertion expansion tube, and this programme break this kind of
Design, according to the structure design of air inlet pipe expanding end and teeth groove, air inlet pipe is inserted from the side wall of expansion tube, refrigerant gas
Enter the moment of expansion tube from air inlet pipe, there is more laterally broader diffusion space, diffusion velocity is fast, and expansion tube is annular
Side wall make sound wave reflective distance shorter, superposition abatement the used time short, thus reaching the effect of quick noise reduction, and compare existing
Deafener, such as before the applicant, the patent (Application No. 201220564438.9 and 201220536224.0) of application, disappears
Audio fruit can improve 7% about.
As further improvement of the utility model, the length that described air inlet pipe is inserted in expansion tube is a, in expansion tube
The internal diameter in portion is b, then a:b=2:5；The opening taper of described expansion mouth is 65 ° -70 °.Air inlet pipe insertion depth and expansion mouth
The optimization design of taper, is that applicant passes through thousands of time constantly tests and gropes to obtain, erasure effect can be made to reach
Good, it is performing creative labour achievement.
As further improvement of the utility model, one end of described expansion tube is closed, and gradually necking is formed the other end
Export department, export department is inserted into escape pipe.
The outer wall of the one end inserting export department as further improvement of the utility model, described escape pipe is provided with outer
Projection, the inwall of export department is provided with the slot matching with outer lug.On the one hand be conducive to escape pipe insertion positioning, that is, insert i.e.
Weldering, without measurement and positioning, efficiency high；When on the other hand welding, liquid solder flows easily in slot, increases weld strength；Separately
Outward, the outer lug of escape pipe also can stop that solder needs to clear up further after causing welding in slot entrance expansion tube, carries
High welding quality and efficiency.
As further improvement of the utility model, the described outer lug given vent to anger in pipe outer wall is circular or point-like.
As further improvement of the utility model, in described pipe outer wall of giving vent to anger, the position near outer lug is provided with ring
Groove.Receiving amount of solder can be increased, improve weld strength further.
As further improvement of the utility model, between described escape pipe and the export department of expansion tube by soldering even
Connect.
3rd, beneficial effect
Compared to prior art, the beneficial effects of the utility model are:
(1) end face that in prior art, air inlet pipe inserts expansion tube one end is all plane, and this utility model noise reduction strengthens
Type air conditioner muffler, arranges flaring expansion mouth in air inlet tube end, and designs teeth groove on the end face of expansion mouth, simply changes
Enter and but have an unexpected effect, it is more significantly that the effect that it produces compares existing planar design, studying carefully its principle is system
When refrigerant gas reach the end of air inlet pipe, first pass through flaring expansion mouth and gradually expand, then reach the teeth groove of end again
Multiple reflections superposition to the further diverging expansion of surrounding and in expansion tube, acoustic waveform changes, so that noise declines rapidly
Subtract and realize noise reduction；Further, since refrigerant gas enter, expansion tube internal diffusion is wider faster, and the impulsive force that it produces is relatively
Little, vibrations can reduce, and is conducive to the extension device life-span；
(2) this utility model noise reduction enhancement mode air conditioner muffler, the slot form on expansion mouth is triangle or rectangle, tooth
The selection of groove shape is to consider erasure effect and difficulty of processing obtains, and under the premise of reducing difficulty of processing, reaches best effect
Effect；
(3) existing standard, its air inlet pipe is all from the end of expansion tube insertion expansion tube, and this utility model
Noise reduction enhancement mode air conditioner muffler breaks this kind of design, according to the structure design of air inlet pipe expanding end and teeth groove, by air inlet pipe
From the side wall insertion of expansion tube, refrigerant gas enter the moment of expansion tube from air inlet pipe, have laterally broader diffusion empty
Between, diffusion velocity is fast, and the side wall of expansion tube annular makes sound wave reflective distance shorter, and the superposition abatement used time is short, thus reaching
To the effect of quick noise reduction, and compare existing deafener, the patent (Application No. of application such as before the applicant
201220564438.9 and 201220536224.0), erasure effect can improve 7% about；
(4) this utility model noise reduction enhancement mode air conditioner muffler, air inlet pipe is inserted in length and expansion tube in expansion tube
The ratio of the internal diameter in portion is 2:5, the opening taper of expansion mouth between 65 ° to 70 °, air inlet pipe insertion depth and expansion mouth taper
Optimization design, be that applicant passes through thousands of time constantly tests and gropes to obtain, erasure effect can be made to reach most preferably, be
Performing creative labour achievement；
(5) this utility model noise reduction enhancement mode air conditioner muffler, the outer wall that escape pipe inserts one end of export department is provided with
Outer lug, the inwall of export department is provided with the slot matching with outer lug, this kind of structure, is on the one hand conducive to escape pipe to insert
Positioning, that is, insert and weld, without measurement and positioning, efficiency high；When on the other hand welding, liquid solder flows easily in slot, increases weldering
Connect intensity；In addition, the outer lug of escape pipe also can stop that solder needs into one after causing welding in slot entrance expansion tube
Step cleaning, improves welding quality and efficiency；
(6) this utility model noise reduction enhancement mode air conditioner muffler, the annular groove setting on trachea outer wall, receiving solder can be increased
Amount, improves weld strength further；
(7) this utility model noise reduction enhancement mode air conditioner muffler, structure is simple, reasonable in design it is easy to manufacture.
Brief description
Fig. 1 is cross section structure diagram of the present utility model；
The partial structural diagram that in Fig. 2 this utility model, escape pipe is connected with expansion tube.
In figure: 1, air inlet pipe；101st, expansion mouth；102nd, teeth groove；2nd, expansion tube；210th, export department；211st, slot；3rd, give vent to anger
Pipe；301st, outer lug；302nd, annular groove.
Specific embodiment
With reference to specific embodiments and the drawings, this utility model is further described below.
Embodiment 1
As shown in figure 1, a kind of noise reduction enhancement mode air conditioner muffler of the present embodiment, including air inlet pipe 1, expansion tube 2 with go out
Trachea 3；Wherein, one end closing of described expansion tube 2, gradually necking forms export department 210 to the other end, and expansion tube 2 is not using
Rust steel pipe；Described air inlet pipe 1 is copper pipe, and it is inserted perpendicularly in expansion tube 2 from the side wall at expansion tube 2 middle part, and air inlet pipe 1 is inserted
The one end entering expansion tube 2 is provided with flaring expansion mouth 101, and the end face of expansion mouth 101 is provided with teeth groove 102.Described goes out
Trachea 3 is copper pipe, and its one end is inserted in the export department 210 of expansion tube 2, is connected with expansion tube 2 by welding.
The end face that in prior art, air inlet pipe 1 inserts expansion tube 2 one end is all plane, and in the present embodiment, in air inlet pipe 1
The design of the teeth groove 102 of the flaring expansion mouth in end 101 and expansion mouth 101 end face, simple improvement but has unexpected
Effect, the effect that it produces compares that existing planar design is more significantly, and studying carefully its principle is: refrigerant gas reach air inlet
During the end of pipe 1, first pass through flaring expansion mouth 101 and gradually expand, the teeth groove 102 then reaching end enters one to surrounding again
Step diverging expansion multiple reflections superposition in expansion tube 2, acoustic waveform changes, and the realization so that noise is decayed rapidly disappears
Sound；Further, since refrigerant gas enter expansion tube 2 internal diffusion more extensively faster, the impulsive force that it produces is relatively small, shakes meeting
Reduce, be conducive to the extension device life-span.In the present embodiment, the teeth groove 102 on expansion mouth 101 is shaped as triangle or rectangle, excellent
Select rectangle, the selection of teeth groove 102 shape is to consider erasure effect and difficulty of processing obtains, under the premise of reducing difficulty of processing,
Reach best effect effect.
In addition what deserves to be explained is, existing standard, its air inlet pipe 1 is all to insert from the end of expansion tube 2 to expand
In pipe 2, and the deafener of the present embodiment breaks this kind of design, according to the structure design demand of air inlet pipe 1 end face teeth groove 102, will
Air inlet pipe 1 enters the moment of expansion tube 2 from air inlet pipe 1, has laterally wider from the side wall insertion of expansion tube 2, refrigerant gas
Wide diffusion space, diffusion velocity is fast, and the side wall of expansion tube annular makes sound wave reflective distance shorter, the superposition abatement used time
Short, thus reaching the effect of quick noise reduction, and compare existing deafener, the patent (application of application such as before the applicant
Number be 201220564438.9 and 201220536224.0), erasure effect can improve 7% about.
Additionally, the present embodiment inserts the length in expansion tube 2 to air inlet pipe 1 is optimized design, we set air inlet pipe 1 and insert
Entering the length in expansion tube 2 is a, and the internal diameter at expansion tube 2 middle part is b, then a and b meets a:b=2:5.The design choosing of this ratio
Select, be constantly to test by thousands of times to grope to obtain, erasure effect can be made to reach most preferably, be that performing creative labour becomes
Really.In the present embodiment, the internal diameter b=36mm at expansion tube 2 middle part, and air inlet pipe 1 inserts length a=in expansion tube 2
14.4mm, meets aforementioned proportion.Meanwhile, by the opening mould taper control of expansion mouth 101 between 65 ° to 70 °, have in the present embodiment
Body takes 65 ° so that Diffusion of gas stream more smooth homogeneous, is favorably improved erasure effect.
In the present embodiment, multiple apertures are also set up on the side wall of expansion mouth 101, air-flow flows in expansion mouth 101
During start from aperture to external diffusion, reduce air-flow velocity, strengthen erasure effect, also can reduce gas shock power.
Embodiment 2
A kind of noise reduction enhancement mode air conditioner muffler of the present embodiment, the connection to escape pipe 3 on the basis of embodiment 1 is tied
Structure is improved, in conjunction with shown in Fig. 1 and Fig. 2, escape pipe 3 insert one end of export department 210 outer wall be provided with circular or
The outer lug 301 of point-like, preferably dots structure, the inwall of export department 210 is provided with the slot 211 matching with outer lug 301,
And between the export department 210 of escape pipe 3 and expansion tube 2, pass through soldering connection.This kind of structure, is on the one hand conducive to escape pipe 3
Insertion positioning, that is, insert and weld, without measurement and positioning, efficiency high；When on the other hand welding, liquid solder flows easily into slot 211
Interior, improve weld strength, welding is relatively reliable；In addition, the outer lug 301 of escape pipe 3 also can stop that solder enters from slot 211
Need to clear up further after causing welding in expansion tube 2, improve welding quality and efficiency.Meanwhile, escape pipe 3 outer wall leans on
The position of nearly outer lug 301 is provided with annular groove 302, can increase receiving amount of solder, improves weld strength further.
Below schematically this utility model and embodiments thereof are described, this description does not have restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by it, without departing from this utility model create objective in the case of, design without creative
The frame mode similar to this technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (9)
1. a kind of noise reduction enhancement mode air conditioner muffler, including air inlet pipe (1) and expansion tube (2)；One end of described air inlet pipe (1)
In insertion expansion tube (2)；It is characterized in that: one end that described air inlet pipe (1) inserts expansion tube (2) is provided with flaring expansion
Oral area (101), the end face of expansion mouth (101) is provided with teeth groove (102).
2. a kind of noise reduction enhancement mode air conditioner muffler according to claim 1 it is characterised in that: described expansion mouth
(101) teeth groove (102) on is shaped as triangle or rectangle.
3. a kind of noise reduction enhancement mode air conditioner muffler according to claim 1 and 2 it is characterised in that: described air inlet pipe
(1) it is inserted perpendicularly in expansion tube (2) the side wall in the middle part of expansion tube (2).
4. a kind of noise reduction enhancement mode air conditioner muffler according to claim 3 it is characterised in that: described air inlet pipe (1)
Length in insertion expansion tube (2) is a, and the internal diameter in the middle part of expansion tube (2) is b, then a:b=2:5；Described expansion mouth (101)
Opening taper be 65 ° -70 °.
5. a kind of noise reduction enhancement mode air conditioner muffler according to claim 3 it is characterised in that: described expansion tube (2)
One end closing, gradually necking forms export department (210) to the other end, and export department (210) is inserted into escape pipe (3).
6. a kind of noise reduction enhancement mode air conditioner muffler according to claim 5 it is characterised in that: described escape pipe (3)
The outer wall of one end of insertion export department (210) is provided with outer lug (301), and the inwall of export department (210) is provided with and outer lug
(301) slot (211) matching.
7. a kind of noise reduction enhancement mode air conditioner muffler according to claim 6 it is characterised in that: described escape pipe (3)
Outer lug (301) on outer wall is circular or point-like.
8. a kind of noise reduction enhancement mode air conditioner muffler according to claim 7 it is characterised in that: described escape pipe (3)
On outer wall, the position near outer lug (301) is provided with annular groove (302).
9. a kind of noise reduction enhancement mode air conditioner muffler according to claim 7 it is characterised in that: described escape pipe (3)
Pass through soldering connection and the export department (210) of expansion tube (2) between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620917416.4U CN205895544U (en) | 2016-08-22 | 2016-08-22 | Enhancement mode air conditioner muffler of making an uproar falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620917416.4U CN205895544U (en) | 2016-08-22 | 2016-08-22 | Enhancement mode air conditioner muffler of making an uproar falls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205895544U true CN205895544U (en) | 2017-01-18 |
Family
ID=57777773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620917416.4U Expired - Fee Related CN205895544U (en) | 2016-08-22 | 2016-08-22 | Enhancement mode air conditioner muffler of making an uproar falls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205895544U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088554A1 (en) * | 2018-11-01 | 2020-05-07 | 中国海洋大学 | Brazed pipeline joint and processing method |
| WO2022227704A1 (en) * | 2021-04-30 | 2022-11-03 | 浙江盾安人工环境股份有限公司 | Silencer and air conditioner having same |
-
2016
- 2016-08-22 CN CN201620917416.4U patent/CN205895544U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088554A1 (en) * | 2018-11-01 | 2020-05-07 | 中国海洋大学 | Brazed pipeline joint and processing method |
| WO2022227704A1 (en) * | 2021-04-30 | 2022-11-03 | 浙江盾安人工环境股份有限公司 | Silencer and air conditioner having same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20190822 |
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| CF01 | Termination of patent right due to non-payment of annual fee |