CN214001247U - Silencer combined structure of vehicle air conditioning system - Google Patents
Silencer combined structure of vehicle air conditioning system Download PDFInfo
- Publication number
- CN214001247U CN214001247U CN202022802281.6U CN202022802281U CN214001247U CN 214001247 U CN214001247 U CN 214001247U CN 202022802281 U CN202022802281 U CN 202022802281U CN 214001247 U CN214001247 U CN 214001247U
- Authority
- CN
- China
- Prior art keywords
- silencer
- built
- pore
- muffler
- air conditioning
- 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.)
- Active
Links
Images
Landscapes
- Exhaust Silencers (AREA)
Abstract
A silencer combined structure of a vehicle air conditioning system comprises an external silencer, an internal silencer, a first aluminum pipe, a second aluminum pipe, an aluminum sleeve and a hose; the two ends of the external silencer are pipe interfaces and are respectively welded with the first aluminum pipe and the second aluminum pipe into a whole, and the middle inner cavity is a silencing cavity of which the diameter is larger than that of the pipe interfaces; the built-in silencer is arranged in the end part of the hose and is tubular, flaring holes are formed in the two ends of the built-in silencer, flaring hole flanges are arranged on the outer wall of the tail end of the built-in silencer, a constraint structure is arranged on the outer wall of the main body, and a first pore, a second pore and a third pore are arranged on the wall of the main body; the aluminum sleeve is riveted on the second aluminum pipe, the hose is riveted with the second aluminum pipe and the aluminum sleeve, and the end part of the second aluminum pipe inserted in the hose is abutted against the built-in silencer. The utility model discloses jointly use external muffler and built-in muffler, external muffler can effectively reduce pressure pulsation, realizes the reduction of sound intensity, and built-in muffler can effectively eliminate mechanical vibration noise, has fine effect to the noise that reduces vehicle air conditioning system.
Description
Technical Field
The utility model relates to a vehicle air conditioning system's noise treatment device, in particular to vehicle air conditioning system's muffler integrated configuration.
Background
With the rapid increase of economy, the demand of consumers for purchasing automobiles is higher and higher. The quality of the sound insulation effect in the vehicle becomes an important index when a consumer purchases the vehicle, but because the factors causing the noise in the vehicle are many, an effective means can not be provided for solving the problem of the noise in the vehicle once and for all, so that the sound source can be subjected to partial noise reduction treatment only aiming at one kind of noise. The utility model discloses to the noise that vehicle air conditioning system causes, the integrated configuration of the built-in muffler carries out the processing of making an uproar partially to the noise in design.
SUMMERY OF THE UTILITY MODEL
To the above problems, the present invention provides a silencer assembly structure for a vehicle air conditioning system.
The purpose of the utility model can be realized by the following technical scheme: a silencer combined structure of a vehicle air conditioning system comprises an external silencer, an internal silencer, a first aluminum pipe, a second aluminum pipe, an aluminum sleeve and a hose;
the two ends of the external silencer are pipe interfaces and are respectively welded with the first aluminum pipe and the second aluminum pipe into a whole, and the middle inner cavity of the external silencer is a silencing cavity of which the diameter is larger than that of the pipe interfaces;
the built-in silencer is arranged in the end part of the hose, the built-in silencer is tubular, flaring holes are formed in the two ends of the built-in silencer, flaring flanges are arranged on the outer walls of the tail ends of the built-in silencer, a constraint structure is arranged on the outer wall of a main body of the built-in silencer, the built-in silencer is constrained to move in the hose through the flaring flanges and the constraint structure, a first pore, a second pore and a third pore are arranged on the wall of the main body of the built-in silencer, the first pore and the second pore are respectively close to the two ends of the built-in silencer, and the third pore is located in the middle;
the aluminum sleeve is riveted on the second aluminum pipe, the hose is riveted with the second aluminum pipe and the aluminum sleeve, and the end part, inserted in the hose, of the second aluminum pipe abuts against the built-in silencer.
Furthermore, an arc-shaped transition is formed between the sound attenuation cavity of the external silencer and the pipe interface.
Further, the length of the external silencer is 35-150 mm, and the outer diameter of the middle of the external silencer is phi 32-60 mm.
Furthermore, the constraint structure of the built-in silencer is three axial flanges which are uniformly distributed on the outer wall of the main body along the circumferential direction, and the first pore, the second pore and the third pore are respectively positioned among the three axial flanges.
Further, the inner diameter of the built-in silencer is phi 8.9mm, the diameter of the first fine hole is phi 3mm, the diameter of the second fine hole is phi 1.5mm, and the diameter of the third fine hole is phi 0.8 mm.
Further, the constraint structure of the built-in silencer is two circumferential flanges axially distributed on the outer wall of the main body, and the first pore, the second pore and the third pore are separated by the two circumferential flanges.
Furthermore, the number of the first fine holes, the second fine holes and the third fine holes is two, and the first fine holes, the second fine holes and the third fine holes are respectively and uniformly distributed in the circumferential direction of the pipe wall of the built-in silencer main body.
Further, the inner diameter of the built-in silencer is phi 9.6mm, the diameter of the first fine hole is phi 2.2mm, the diameter of the second fine hole is phi 1.2mm, and the diameter of the third fine hole is phi 0.8 mm.
Compared with the prior art, the beneficial effects of the utility model are that: the external silencer and the internal silencer are jointly applied, the external silencer can effectively reduce pressure pulsation, the reduction of sound intensity is realized, the defect of the internal silencer in the aspect of eliminating the pressure pulsation is overcome, the internal silencer can effectively eliminate mechanical vibration noise, the defect of the external silencer in the aspect of eliminating the mechanical vibration noise is overcome, the noise reduction device has a good effect on reducing the noise of an air conditioning system of a vehicle, and the popularization of the external silencer has important significance on reducing the noise in the vehicle.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of an external muffler in embodiment 1 of the present invention.
Fig. 3 is a schematic perspective view of a built-in silencer according to embodiment 1 of the present invention.
Fig. 4 is a schematic top view of a built-in silencer according to embodiment 1 of the present invention.
The components in fig. 1 to 4 are numbered as follows:
1 external silencer
101 sound deadening chamber
2 built-in silencer
201 flaring
202 flared flange
203 axial flange
204 first fine hole
205 second pores
206 third pore
3 first aluminum pipe
4 second aluminum pipe
5 aluminium jacket
6 flexible pipes.
Fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 6 is a schematic top view of a built-in muffler according to embodiment 1 of the present invention.
The components in fig. 5 and 6 are numbered as follows:
1 external silencer
2 built-in silencer
201 flaring
202 flared flange
203 peripheral flange
204 first fine hole
205 second pores
206 third pore
3 first aluminum pipe
4 second aluminum pipe
5 aluminium jacket
6 flexible pipes.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.
Example 1
Referring to fig. 1, a silencer combined structure of a vehicle air conditioning system includes an external silencer 1, an internal silencer 2, a first aluminum pipe 3, a second aluminum pipe 4, an aluminum jacket 5, and a hose 6.
Referring to fig. 2, two ends of the external muffler 1 are pipe interfaces for connecting with an aluminum pipe of a vehicle air conditioning system, an inner cavity of the middle of the external muffler 1 is a sound attenuation cavity 101, the sound attenuation cavity 101 is cylindrical and has a diameter larger than that of the pipe interfaces, and the sound attenuation cavity 101 and the pipe interfaces are in arc transition. The length of the external silencer 1 is selected within a range of 35-150 mm, and the middle outer diameter of the external silencer 1 is selected within a range of phi 32-60 mm.
Referring to fig. 3 and 4, the built-in silencer 2 is tubular, and both ends of the built-in silencer 2 are flared 201 and the end outer wall is provided with a flared flange 202. The outer wall of the main body of the built-in silencer 2 is provided with three axial flanges 203 which are uniformly distributed along the circumferential direction, and the axial flanges 203 are of a constraint structure and play a role in constraining the built-in silencer 2 to move in the hose. The main pipe wall of the built-in silencer 2 is provided with a first pore 204, a second pore 205 and a third pore 206, the first pore 204, the second pore 205 and the third pore 206 are respectively positioned between the three axial flanges 203, the first pore 204 and the second pore 205 are respectively arranged near two ends of the built-in silencer 2, the third pore 206 is positioned in the middle of the built-in silencer 2, and the first pore 204, the second pore 205 and the third pore 206 can absorb mechanical vibration to achieve the purpose of absorbing noise. In this embodiment, the inner diameter of the built-in muffler 2 is 8.9mm, the diameter of the first fine hole 204 is 3mm, the diameter of the second fine hole 205 is 1.5mm, and the diameter of the third fine hole 206 is 0.8 mm.
Noise sources due to vehicle air conditioning systems are mainly due to mechanical impact of the compressor suction and discharge valves and air flow pulsations. Because the inner diameter of the exhaust pipe is small, the pressure of the exhausted gas is relatively stable, the airflow pulsation is small, the vibration caused by the exhaust pipe is not large, and the noise intensity is not large. On the contrary, the heat load in the vehicle is changed greatly, the inner diameter of the suction pipe is thick, the refrigerant flows back to the inlet of the compressor to generate large air flow pulsation, and the vibration of the compressor is increased as a result. Therefore, the muffler assembly should be located close to the compressor suction port.
Referring to fig. 1, during assembly, two ends of an external silencer 1 are respectively welded with a first aluminum pipe 3 and a second aluminum pipe 4 close to a compressor air suction port to form a whole, an aluminum sleeve 5 is riveted on the second aluminum pipe 4, an internal silencer 2 is plugged into the end of a hose 6, the insertion depth of the second aluminum pipe 4 is reserved at the end of the hose 6, finally the hose 6 is riveted with the second aluminum pipe 4 and the aluminum sleeve 5, and the end of the second aluminum pipe 4 inserted into the hose 6 is abutted against the internal silencer 2. Due to the constraint structure of the built-in silencer 2, the built-in silencer 2 is constrained by the tooth shape of the hose 6 and the second aluminum pipe 4, and the position of the built-in silencer is constrained.
The compressor has intermittent operation principle, so that the mechanical impact of the air sucking and exhausting valve and the airflow pulsation present multifrequency characteristic in the air sucking pipe, and the Fourier principle converts noise wave into sine wave, so that the sine wave has different wave crests and wave troughs in different frequencies and lowered amplitude via vector superposition.
Through ANSYS analysis, under the same condition, the external silencer 1 alone can reduce the sound intensity of the refrigerant of 58% in a gas state. In the case of using the built-in silencer 2 alone, the diameter of the smallest pore on the pipe body of the built-in silencer 2 is phi 0.8mm, and turbulence occurs at the pore, so that the sound intensity of the wall fluid at the pore is enhanced, but for the whole pipeline, the sound intensity of the refrigerant in a gas state can be reduced by 20% by using the built-in silencer 2.
The external muffler 1 can effectively reduce pressure pulsation to reduce sound intensity, but cannot eliminate noise generated by mechanical vibration of an air conditioning system, and the internal muffler 2 has a good effect of eliminating mechanical vibration noise, but still has no good effect of eliminating pressure pulsation as compared with the external muffler 1. Compare in external muffler of exclusive use or built-in muffler, this muffler integrated configuration jointly uses to external muffler 1 and built-in muffler 2, has compensatied two kinds of type silencing device's not enough at to a great extent, has fine effect to the noise that reduces vehicle air conditioning system, promotes its use and has important meaning to reducing the interior noise of car.
Example 2
Referring to fig. 5, a silencer combined structure of a vehicle air conditioning system includes an external silencer 1, an internal silencer 2, a first aluminum pipe 3, a second aluminum pipe 4, an aluminum jacket 5, and a hose 6. The difference from embodiment 1 is the structure of the restriction on the outer wall of the body of the built-in muffler 2, and the rest is referred to embodiment 1.
Referring to fig. 6, the built-in silencer 2 is tubular, and both ends of the built-in silencer 2 are flared 201 and the outer wall of the end is provided with a flared flange 202. The outer wall of the main body of the built-in silencer 2 is provided with two circumferential flanges 203 which are distributed along the axial direction, and the circumferential flanges 203 play a role in restraining the built-in silencer 2 from moving in the pipe. The main pipe wall of the built-in silencer 2 is provided with a first pore 204, a second pore 205 and a third pore 206, the first pore 204, the second pore 205 and the third pore 206 are distributed along the axial direction of the built-in silencer 2 and are separated by two circumferential flanges 203, the first pore 204 and the second pore 205 are respectively arranged close to two ends of the built-in silencer 2, the third pore 206 is positioned in the middle of the built-in silencer 2, and the first pore 204, the second pore 205 and the third pore 206 can achieve the purpose of absorbing noise by absorbing mechanical vibration. In this embodiment, the inner diameter of the built-in muffler 2 is phi 9.6mm, the diameter of the first fine hole 204 is phi 2.2mm, the diameter of the second fine hole 205 is phi 1.2mm, the diameter of the third fine hole 206 is phi 0.8mm, and the number of the first fine hole 204, the second fine hole 205, and the third fine hole 206 is two and respectively and uniformly distributed in the circumferential direction of the main pipe wall of the built-in muffler 2.
It should be noted that many variations and modifications of the embodiments of the present invention are possible, which are fully described, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.
Claims (8)
1. A silencer combined structure of a vehicle air conditioning system is characterized by comprising an external silencer, an internal silencer, a first aluminum pipe, a second aluminum pipe, an aluminum sleeve and a hose;
the two ends of the external silencer are pipe interfaces and are respectively welded with the first aluminum pipe and the second aluminum pipe into a whole, and the middle inner cavity of the external silencer is a silencing cavity of which the diameter is larger than that of the pipe interfaces;
the built-in silencer is arranged in the end part of the hose, the built-in silencer is tubular, flaring holes are formed in the two ends of the built-in silencer, flaring flanges are arranged on the outer walls of the tail ends of the built-in silencer, a constraint structure is arranged on the outer wall of a main body of the built-in silencer, the built-in silencer is constrained to move in the hose through the flaring flanges and the constraint structure, a first pore, a second pore and a third pore are arranged on the wall of the main body of the built-in silencer, the first pore and the second pore are respectively close to the two ends of the built-in silencer, and the third pore is located in the middle of the built-in silencer;
the aluminum sleeve is riveted on the second aluminum pipe, the hose is riveted with the second aluminum pipe and the aluminum sleeve, and the end part, inserted in the hose, of the second aluminum pipe abuts against the built-in silencer.
2. A muffler assembly structure for a vehicle air conditioning system as defined in claim 1, wherein the muffler chamber of the outboard muffler is in arcuate transition with the pipe joint.
3. The silencer assembly structure of an air conditioning system for a vehicle of claim 1, wherein the length of the external silencer is 35 to 150mm, and the outer diameter of the middle portion of the external silencer is phi 32 to 60 mm.
4. A silencer assembly structure of an air conditioning system for a vehicle according to any one of claims 1 to 3, wherein the restricting structure of the built-in silencer is three axial flanges uniformly distributed on the outer wall of the main body in the circumferential direction, and the first, second, and third fine holes are respectively located between the three axial flanges.
5. The muffler assembly structure of an air conditioning system for vehicles according to claim 4, wherein the built-in muffler has an inner diameter of phi 8.9mm, a diameter of the first fine hole of phi 3mm, a diameter of the second fine hole of phi 1.5mm, and a diameter of the third fine hole of phi 0.8 mm.
6. A silencer assembly structure of an air conditioning system for a vehicle according to any one of claims 1 to 3, wherein the restricting structure of the built-in silencer is two circumferential flanges axially distributed on the outer wall of the main body, and the first, second, and third fine holes are separated by the two circumferential flanges.
7. The muffler assembly structure of an air conditioning system for vehicles according to claim 6, wherein the number of the first, second and third fine holes is two and the first, second and third fine holes are uniformly distributed in the circumferential direction of the pipe wall of the built-in muffler body, respectively.
8. The muffler assembly structure of an air conditioning system for vehicles according to claim 6, wherein the built-in muffler has an inner diameter of phi 9.6mm, a diameter of phi 2.2mm in the first fine hole, a diameter of phi 1.2mm in the second fine hole, and a diameter of phi 0.8mm in the third fine hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022802281.6U CN214001247U (en) | 2020-11-27 | 2020-11-27 | Silencer combined structure of vehicle air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022802281.6U CN214001247U (en) | 2020-11-27 | 2020-11-27 | Silencer combined structure of vehicle air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214001247U true CN214001247U (en) | 2021-08-20 |
Family
ID=77307681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022802281.6U Active CN214001247U (en) | 2020-11-27 | 2020-11-27 | Silencer combined structure of vehicle air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214001247U (en) |
-
2020
- 2020-11-27 CN CN202022802281.6U patent/CN214001247U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108425719A (en) | Muffler and automobile | |
| CN214001247U (en) | Silencer combined structure of vehicle air conditioning system | |
| CN205101084U (en) | Car exhaust muffler and car | |
| CN201412209Y (en) | Automobile silencer | |
| CN102367791A (en) | Intake silencer used in air compressor of light truck pneumatic brake system | |
| CN109532389A (en) | A kind of pipelines of automobile air conditioner silencer | |
| JP2016217174A (en) | Muffler of automobile | |
| CN211195771U (en) | Silencer for automobile air conditioner pipeline and mounting structure thereof | |
| CN208918659U (en) | Muffler assembly | |
| CN220539746U (en) | Noise reduction device for turbocharger air outlet system | |
| CN221074463U (en) | Air filter advances muffler, air intake system and car | |
| CN220979626U (en) | Exhaust muffler assembly | |
| CN208441906U (en) | Muffler and automobile | |
| CN203035309U (en) | Gasoline engine muffler | |
| CN202326084U (en) | Air inlet muffler for air compressor of light-weight truck air brake system | |
| CN206267936U (en) | A kind of automobile exhaust system silencer and automobile | |
| CN204591406U (en) | A kind of passenger car premuffler | |
| CN216924728U (en) | Air conditioner end silencer | |
| CN201546786U (en) | Exhaust muffler for gasoline engines | |
| TWM564637U (en) | Improved structure of an exhaustion tube | |
| CN205225525U (en) | Integrated air cleaner silencer that loses heart return circuit | |
| CN214836791U (en) | Noise reduction wavelength tube | |
| CN221053828U (en) | Automobile muffler assembly | |
| CN212563838U (en) | Silencing device | |
| CN110863891A (en) | Silencer for automobile exhaust pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |