CN108819653B - Silencer and adjustable silencer model for designing and shaping silencer - Google Patents
Silencer and adjustable silencer model for designing and shaping silencer Download PDFInfo
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- CN108819653B CN108819653B CN201810377266.6A CN201810377266A CN108819653B CN 108819653 B CN108819653 B CN 108819653B CN 201810377266 A CN201810377266 A CN 201810377266A CN 108819653 B CN108819653 B CN 108819653B
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- 230000003584 silencer Effects 0.000 title claims abstract description 139
- 238000007493 shaping process Methods 0.000 title abstract description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 17
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000010349 pulsation Effects 0.000 abstract description 4
- 238000005192 partition Methods 0.000 description 16
- 238000011161 development Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 230000030279 gene silencing Effects 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001743 silencing effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H2001/006—Noise reduction
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Duct Arrangements (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention provides a silencer capable of eliminating the influence of instantaneous gas pulsation and an adjustable silencer model for designing and shaping the silencer. The adjustable silencer model comprises a cylindrical silencer model body, wherein a first baffle and a second baffle are respectively arranged at two ends of the cylindrical silencer model body; a pressure stabilizing valve communicated with the first cavity and the second cavity is arranged on the piston; a piston rod of the piston is hollow, and the end part of the piston rod passes through the first baffle plate and extends out of the silencer model body; the adjustable silencer model also comprises an extension pipe, and the extension pipe penetrates through the second baffle plate and extends into the silencer model body; the silencer model body is provided with a first adjusting mechanism for adjusting the position of the piston in the silencer model body, and a second adjusting mechanism for adjusting the length of the extension pipe extending into the silencer model body.
Description
Technical Field
The invention relates to the technical field of automobile air conditioners, in particular to a silencer and an adjustable silencer model for designing and shaping the silencer.
Background
With the rapid development of the professional NVH technology in the automobile market, the requirement of users on the driving comfort of automobiles is higher and higher. In order to meet the requirement of comfortable driving, the noise of automobile parts in the running process can be fully considered when the automobile parts are designed. The noise generated in the operation of the air conditioning system is the problem which is mainly solved in the design and production of automobiles, and the requirement on the noise of starting the air conditioner of the electric automobile is more strict.
Noise generated in the operation of the air conditioning system has different requirements on the frequency of the noise to be solved along with different refrigerant states, and the noise problem cannot be effectively solved due to the fact that the complex working condition is verified, the period is long, the required resources are too much. The adjustment of the inner space of the silencer in the test needs to be convenient and fast, and the requirement on the pulse adaptability of various working condition gases is high. Due to the limitation of the prior art and test equipment, the silencer structure has great influence on the test result, the adjustment is inconvenient, and the instantaneous pulsation of the gas can not be effectively absorbed, so that the silencer can not be matched quickly and accurately.
Disclosure of Invention
The first purpose of the invention is to provide a silencer which can eliminate the influence of instantaneous gas pulsation.
The silencer comprises a cylindrical silencer body, wherein baffles are arranged at two ends of the cylindrical silencer body; the first connecting pipe and the second connecting pipe respectively communicate the inside and the outside of the silencer body; the silencer is characterized in that a partition plate is arranged in the silencer body, and the partition plate divides the interior of the silencer body into a first cavity and a second cavity; a pressure stabilizing valve communicated with the first cavity and the second cavity is arranged on the partition plate; the end part of the first connecting pipe extends into the first cavity and is connected with the partition plate, and the end part of the first connecting pipe is communicated with the second cavity through a through hole in the partition plate; the second connecting pipe extends into the second cavity.
In the silencer, the frequency characteristic of the silencer can be changed by changing the length of the second connecting pipe extending into the second cavity and adjusting the position of the partition plate, so that the noise of the automobile air conditioning system is matched and reduced in a targeted manner, and the purpose of silencing is achieved. The pressure stabilizing valve arranged on the partition plate is communicated with the first cavity and the second cavity, so that when air in the second cavity is influenced by the instant pulse sound waves, part of air in the second cavity is introduced into the first cavity to play a role in stabilizing the air pressure in the second cavity, the influence of the instant pulse of the air on the silencer is eliminated, and the pressure stabilizing valve is very suitable for inhibiting the instant pulse sound waves.
Further, for the convenience is connected muffler and the relevant pipeline of air conditioner, first connecting pipe, second connecting pipe are located the outside tip of muffler body and all are equipped with the butt joint.
Further, for spacing and fixed first connecting pipe and second connecting pipe, the both ends of muffler body are equipped with the sleeve pipe of cover on first connecting pipe, second connecting pipe respectively, and above-mentioned sleeve pipe has increased the area of contact with first connecting pipe and second connecting pipe, is favorable to reducing or avoids rocking of first connecting pipe and second connecting pipe for the muffler body.
The second objective of the present invention is to provide an adjustable muffler model for designing and shaping the above muffler, by which the muffling frequency and transmission loss can be adjusted, thereby quickly and effectively verifying the effective muffler specification and accelerating the development speed of the muffler.
The adjustable silencer model comprises a cylindrical silencer model body, wherein a first baffle and a second baffle are respectively arranged at two ends of the cylindrical silencer model body; a pressure stabilizing valve communicated with the first cavity and the second cavity is arranged on the piston; a piston rod of the piston is hollow, and the end part of the piston rod passes through the first baffle plate and extends out of the silencer model body; the adjustable silencer model also comprises an extension pipe, and the extension pipe penetrates through the second baffle plate and extends into the silencer model body; the silencer model body is provided with a first adjusting mechanism for adjusting the position of the piston in the silencer model body, and a second adjusting mechanism for adjusting the length of the extension pipe extending into the silencer model body.
When the silencer is developed and verified, the adjustable silencer model is connected with the related pipeline of the air conditioner, then when the air conditioner works, the position of the piston in the silencer model body is adjusted to change the size of the second cavity and adjust the length of the extension pipe extending into the silencer model body, thereby adjusting the adaptive frequency of the silencer, ending the verification after the silencing effect of the adjustable silencer model reaches the preset target, the position of the partition plate in the muffler product is set according to the specific position of the piston in the muffler model at this time, and the length of the second connecting pipe extending into the second cavity in the silencer product is set according to the length of the extension pipe extending into the silencer model body in the silencer model, since the basic structure of the silencer model is the same as that of the actual silencer product, the silencing characteristics of the silencer product are the same as those of the silencer model after verification. The adjustable silencer has the advantages that part of the structure of the silencer product is designed to be adjustable, so that the development difficulty of the silencer is reduced, and the development progress is accelerated.
Specifically, the first adjusting mechanism comprises a first sleeve fixed on the outer side surface of the first baffle, a first adjusting ring is rotatably mounted at the end part of the first sleeve, and an internal thread is arranged at the outer side end of the first adjusting ring; the piston rod is provided with an external thread at the part exposed out of the silencer model body, and the piston rod is connected with the first adjusting ring through thread matching; first locking bolt is worn to be equipped with by the lateral wall of first adjusting ring, first telescopic lateral surface is equipped with first ring channel, first locking bolt's tip stretches into to first ring channel in. Loosening the first locking bolt to make the end of the first locking bolt separated from the groove bottom of the first annular groove, so that the first adjusting ring can be rotated; at the moment, the end part of the first locking bolt is still positioned in the groove body of the first annular groove, so that the first adjusting ring cannot move along the axis of the first sleeve; the piston rod is driven to move along the axial direction of the first sleeve by the rotation of the first adjusting ring, so that the aim of adjusting the position of the piston in the silencer model body is fulfilled. After the adjustment, can screw first locking bolt, make the tip of first locking bolt compress tightly in the tank bottom of first ring channel, prevent that first sleeve from continuing to rotate and influence later stage measurement's accuracy.
Specifically, the second adjusting mechanism comprises a second sleeve fixed on the outer side surface of the second baffle, a second adjusting ring is rotatably mounted at the end part of the second sleeve, and an internal thread is arranged at the outer side end of the second adjusting ring; the extension pipe is provided with an external thread at the part exposed out of the silencer model body and is connected with the second adjusting ring through thread matching; and a second locking bolt penetrates through the side wall of the second adjusting ring, a second annular groove is formed in the outer side surface of the second sleeve, and the end part of the second locking bolt extends into the second annular groove. The adjustment principle of the second adjustment mechanism is the same as that of the first adjustment mechanism, and is not described in detail here.
Further, the first baffle and the second baffle are fixedly connected with the cylindrical silencer model body through bolts respectively. The first baffle and the second baffle are designed to be separated from the silencer body, so that the piston can be conveniently installed.
Furthermore, in order to improve the sealing performance of the silencer model body, a first sealing ring is arranged at the joint of the first baffle plate, the second baffle plate and the silencer model body, a second sealing ring is arranged at the joint of the first baffle plate and the piston rod, and a third sealing ring is arranged at the joint of the second baffle plate and the extension pipe.
Furthermore, in order to conveniently connect the silencer with the related pipeline of the air conditioner, the end part of the piston rod and the end part of the extension pipe are respectively provided with a butt joint.
Furthermore, in order to improve the sealing performance between the piston and the silencer model, a fourth sealing ring connected with the inner wall of the silencer model body is arranged on the outer side surface of the piston.
The invention can quickly and accurately test the silencing characteristic of the silencer through the adjustable silencer model, thereby providing reliable reference for shaping of the silencer.
Drawings
FIG. 1 is an isometric view of a muffler model of the present invention.
Fig. 2 is a sectional view of the muffler model of the present invention along the axis.
Fig. 3 is a schematic structural view of a first adjustment mechanism in the present invention.
Fig. 4 is a schematic view of the structure at the piston in the present invention.
Labeled as: 1. a muffler model body; 2. a first baffle plate; 3. a second baffle; 4. a first seal ring; 5. a bolt; 6. a piston; 7. a pressure maintaining valve; 8. a piston rod; 9. an extension pipe; 10. a second seal ring; 11. a third seal ring; 12. a first sleeve; 13. a first adjusting ring; 14. a first locking bolt; 15. a first annular groove; 16. a second sleeve; 17. a second adjusting ring; 18. a second locking bolt; 19. a second annular groove; 20. a butt joint; 21. and a fourth seal ring.
Detailed Description
The following describes embodiments of the present invention, such as shapes and structures of respective members, mutual positions and connection relationships between respective portions, and actions and operation principles of the respective portions, in further detail, with reference to the accompanying drawings.
Example 1:
this embodiment provides an adjustable muffler model for designing design muffler, can adjust amortization frequency and transmission loss through this model to verify effectual muffler specification fast effectively for the development speed of muffler.
As shown in fig. 1 and 2, the adjustable silencer model of this embodiment includes silencer model body 1 of tube-shape, the both ends of silencer model body 1 are equipped with first baffle 2 respectively, second baffle 3, first baffle 2, second baffle 3's structure is the same, be the circular slab, first baffle 2, the edge of second baffle 3 is equipped with the step towards silencer model body 1, the diameter of this step slightly is less than the internal diameter of silencer model body 1, step face department is equipped with first sealing washer 4, the outer fringe of first sealing washer 4 offsets with the inner wall of silencer model body 1, in order to realize sealed effect. The first baffle 2 and the second baffle 3 are respectively fixed at two ends of the silencer model body 1 through bolts 5.
A piston 6 is movably arranged in the silencer model body 1, and the piston 6 can move along the axial direction of the silencer model body 1; the piston 6 divides the interior of the silencer model body 1 into a first cavity and a second cavity which are arranged on the left and right, the volumes of the first cavity and the second cavity are changed along with the movement of the piston 6 in the silencer model body 1, and when the volume of the first cavity is increased, the volume of the second cavity is correspondingly reduced, and vice versa.
A pressure stabilizing valve 7 for communicating the first cavity and the second cavity is arranged on the piston 6; the pressure stabilizing valve 7 can reduce the pressure of the second cavity and stabilize the pressure to a fixed value, and can stabilize the air pressure in the second cavity when dealing with sudden pulse type airflow change. In addition, the influence of burst pulsation on the precision of a test matching result can be avoided in a matching silencer test.
A piston rod 8 of the piston 6 is hollow, and the end part of the piston rod 8 passes through the first baffle 2 and extends out of the silencer model body 1, so that a second cavity of the silencer model body is communicated with the outside; an extension pipe 9 is movably arranged on one side of the second cavity of the adjustable silencer model, and the extension pipe 9 penetrates through the second baffle 3 and extends into the silencer model body 1, so that the second cavity of the silencer model body is communicated with the outside; the extension pipe 9 is movable in the axial direction of the muffler model body 1. A second sealing ring 10 is arranged at the joint of the first baffle plate 2 and the piston rod 8, and a third sealing ring 11 is arranged at the joint of the second baffle plate 3 and the extension pipe 9.
The silencer model body 1 is provided with a first adjusting mechanism for adjusting the position of the piston 6 in the silencer model body 1 and a second adjusting mechanism for adjusting the length of the extension pipe 9 extending into the silencer model body 1.
In this embodiment, the first adjusting mechanism includes a first sleeve 12 fixed on the outer side surface of the first baffle 2, and the first sleeve 12 is preferably integrally disposed with the first baffle 2 to reduce the number of connecting members and ensure the sealing performance of the two; a first adjusting ring 13 is rotatably mounted at the end part of the first sleeve 12, the outer side end of the first adjusting ring 13 is an annular step, the inner diameter of the annular step is smaller than that of the first sleeve 12, and the annular step is provided with an internal thread; the piston rod 8 is provided with an external thread at the part exposed out of the silencer model body 1, and the piston rod 8 is connected with the first adjusting ring 13 through thread matching; one or more first locking bolts 14 penetrate through the side wall of the first adjusting ring 13, a first annular groove 15 is formed in the outer side face of the first sleeve 12, and the end portion of each first locking bolt 14 penetrates through the side wall of the first adjusting ring 13 and extends into the first annular groove 15. Loosening the first locking bolt 14 to make the end of the first locking bolt 14 separated from the groove bottom of the first annular groove 15, and rotating the first adjusting ring 13; at the moment, the end part of the first locking bolt 14 is still positioned in the groove body of the first annular groove 15, so that a blocking limit is formed, and the first adjusting ring 13 cannot move along the axis of the first sleeve 12; the rotation of the first adjusting ring 13 drives the piston rod 8 to move along the axial direction of the first sleeve 12, thereby achieving the purpose of adjusting the position of the piston 6 inside the model body 1 of the silencer. After the adjustment is finished, the first locking bolt 14 can be screwed, so that the end part of the first locking bolt 14 is pressed against the bottom of the first annular groove 15, and the first sleeve 12 is prevented from continuing to rotate to influence the accuracy of the later measurement.
The second adjusting mechanism comprises a second sleeve 16 fixed to the outer side of the second shutter 3, and likewise, the second sleeve 16 is preferably integral with the second shutter 3 to reduce the number of connecting pieces and ensure the tightness of the two; a second adjusting ring 17 is rotatably mounted at the end part of the second sleeve 16, the outer side end of the second adjusting ring 17 is an annular step, the inner diameter of the annular step is smaller than that of the second sleeve 16, and the annular step is provided with an internal thread; the extension pipe 9 is provided with an external thread at the part exposed out of the silencer model body 1, and the extension pipe 9 is connected with the second adjusting ring 17 through thread matching; one or more second locking bolts 18 are arranged on the side wall of the second adjusting ring 17 in a penetrating mode, a second annular groove 19 is formed in the outer side face of the second sleeve 16, and the end portion of each second locking bolt 18 penetrates through the side wall of the second adjusting ring 17 and extends into the second annular groove 19. The adjustment principle of the second adjustment mechanism is the same as that of the first adjustment mechanism, and is not described in detail here.
In order to facilitate the connection of the silencer with the relevant pipelines of the air conditioner, the end of the piston rod 8 and the end of the extension pipe 9 are respectively provided with a butt joint 20.
The sealing performance between the piston 6 and the silencer model is improved, and the outer side surface of the piston 6 is provided with a fourth sealing ring 21 connected with the inner wall of the silencer model body 1.
The silencer model in this embodiment is used to design and verify a silencer of the following structure:
the silencer comprises a cylindrical silencer body, wherein two ends of the silencer body are provided with baffles; a first connecting pipe and a second connecting pipe are respectively arranged at two ends of the silencer body; the first connecting pipe and the second connecting pipe respectively penetrate through the baffle plates on the corresponding sides to communicate the inside with the outside of the silencer body; the silencer body is internally provided with a partition plate, and the partition plate divides the interior of the silencer body into a first cavity and a second cavity; a pressure stabilizing valve communicated with the first cavity and the second cavity is arranged on the partition plate; the end part of the first connecting pipe extends into the first cavity and is connected with the partition plate, and the end part of the first connecting pipe is communicated with the second cavity through a through hole in the partition plate; the second connecting pipe extends into the second cavity; the end parts of the first connecting pipe and the second connecting pipe, which are positioned outside the silencer body, are provided with butt joints.
In the silencer, the frequency characteristic of the silencer can be changed by changing the length of the second connecting pipe extending into the second cavity and adjusting the position of the partition plate, so that the noise of the automobile air conditioning system is matched and reduced in a targeted manner, and the purpose of silencing is achieved. The pressure stabilizing valve arranged on the partition plate is communicated with the first cavity and the second cavity, so that when air in the second cavity is influenced by the instant pulse sound waves, part of air in the second cavity is introduced into the first cavity to play a role in stabilizing the air pressure in the second cavity, the influence of the instant pulse of the air on the silencer is eliminated, and the pressure stabilizing valve is very suitable for inhibiting the instant pulse sound waves.
For spacing and fixed first connecting pipe and second connecting pipe, the both ends of muffler body are equipped with the sleeve pipe of cover on first connecting pipe, second connecting pipe respectively, and above-mentioned sleeve pipe has increased the area of contact with first connecting pipe and second connecting pipe, is favorable to reducing or avoids rocking of first connecting pipe and second connecting pipe for the muffler body. The sleeve and the baffle on the corresponding side are preferably designed into an integral structure so as to reduce the number of connecting pieces and ensure the tightness of the connecting pieces and the baffle.
When the silencer is developed and verified, the adjustable silencer model is connected with the related pipeline of the air conditioner, then when the air conditioner works, the position of the piston 6 in the silencer model body 1 is adjusted to change the size of the second cavity, the length of the extension pipe 9 extending into the silencer model body 1 is adjusted, thereby adjusting the adaptive frequency of the silencer, ending the verification after the silencing effect of the adjustable silencer model reaches the preset target, the position of the partition in the muffler product is set according to the specific position of the piston 6 in the muffler model at this time, and the length of the second connecting pipe in the silencer product extending into the second cavity is set according to the length of the extension pipe 9 in the silencer model extending into the silencer model body 1, since the basic structure of the silencer model is the same as that of the actual silencer product, the silencing characteristics of the silencer product are the same as those of the silencer model after verification. The adjustable silencer has the advantages that part of the structure of the silencer product is designed to be adjustable, so that the development difficulty of the silencer is reduced, and the development progress is accelerated.
The invention has been described in connection with the accompanying drawings, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description, as long as the invention is capable of being practiced without modification in any way whatsoever, and is capable of other applications without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. An adjustable silencer model is characterized by comprising a cylindrical silencer model body, wherein a first baffle and a second baffle are respectively arranged at two ends of the cylindrical silencer model body; a pressure stabilizing valve communicated with the first cavity and the second cavity is arranged on the piston; a piston rod of the piston is hollow, and the end part of the piston rod passes through the first baffle plate and extends out of the silencer model body; the adjustable silencer model also comprises an extension pipe, and the extension pipe penetrates through the second baffle plate and extends into the silencer model body; the silencer model body is provided with a first adjusting mechanism for adjusting the position of the piston in the silencer model body and a second adjusting mechanism for adjusting the length of the extension pipe extending into the silencer model body; the first adjusting mechanism comprises a first sleeve fixed on the outer side surface of the first baffle, a first adjusting ring is rotatably arranged at the end part of the first sleeve, and an internal thread is arranged at the outer side end of the first adjusting ring; the piston rod is provided with an external thread at the part exposed out of the silencer model body, and the piston rod is connected with the first adjusting ring through thread matching; a first locking bolt penetrates through the side wall of the first adjusting ring, a first annular groove is formed in the outer side surface of the first sleeve, and the end part of the first locking bolt extends into the first annular groove; the second adjusting mechanism comprises a second sleeve fixed on the outer side surface of the second baffle, a second adjusting ring is rotatably arranged at the end part of the second sleeve, and an internal thread is arranged at the outer side end of the second adjusting ring; the extension pipe is provided with an external thread at the part exposed out of the silencer model body and is connected with the second adjusting ring through thread matching; and a second locking bolt penetrates through the side wall of the second adjusting ring, a second annular groove is formed in the outer side surface of the second sleeve, and the end part of the second locking bolt extends into the second annular groove.
2. The adjustable muffler model as defined in claim 1, wherein the first baffle and the second baffle are respectively fixedly connected with the cylindrical muffler model body through bolts.
3. The adjustable muffler model as defined in claim 2, wherein a first sealing ring is disposed at a joint of the first baffle, the second baffle and the muffler model body, a second sealing ring is disposed at a joint of the first baffle and the piston rod, and a third sealing ring is disposed at a joint of the second baffle and the extension pipe.
4. The adjustable muffler model as defined in claim 1, 2 or 3, wherein the end of the piston rod and the end of the extension pipe are respectively provided with a butt joint.
5. The adjustable muffler model as defined in claim 1, 2 or 3, wherein a fourth sealing ring connected to an inner wall of the muffler model body is provided on an outer side surface of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377266.6A CN108819653B (en) | 2018-04-25 | 2018-04-25 | Silencer and adjustable silencer model for designing and shaping silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377266.6A CN108819653B (en) | 2018-04-25 | 2018-04-25 | Silencer and adjustable silencer model for designing and shaping silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108819653A CN108819653A (en) | 2018-11-16 |
| CN108819653B true CN108819653B (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810377266.6A Active CN108819653B (en) | 2018-04-25 | 2018-04-25 | Silencer and adjustable silencer model for designing and shaping silencer |
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| Country | Link |
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| CN (1) | CN108819653B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594129B (en) * | 2019-08-21 | 2024-12-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Silence chamber length adjustment method, length-adjustable silencer and variable frequency air conditioner |
| CN110848963B (en) * | 2019-10-30 | 2024-08-20 | 珠海格力电器股份有限公司 | Muffler with adjustable cavity length and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693339A (en) * | 1986-10-16 | 1987-09-15 | Newport News Shipbuilding And Dry Dock Company | Muffler for gas inducting machinery generating low frequency noise |
| CN2709656Y (en) * | 2004-10-14 | 2005-07-13 | 上汽集团奇瑞汽车有限公司 | Vehicle silencer |
| WO2014084586A1 (en) * | 2012-11-27 | 2014-06-05 | (주)휘일 | Muffler for air conditioner |
| CN105946502A (en) * | 2016-05-03 | 2016-09-21 | 北京新能源汽车股份有限公司 | Silencing pipe assembly for air conditioner and electric automobile with same |
| CN106482318A (en) * | 2016-09-20 | 2017-03-08 | 奇瑞汽车股份有限公司 | A kind of adjustable air-conditioning duct deafener |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203274207U (en) * | 2013-06-07 | 2013-11-06 | 宁波奥克斯电气有限公司 | Air conditioner silencer |
-
2018
- 2018-04-25 CN CN201810377266.6A patent/CN108819653B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693339A (en) * | 1986-10-16 | 1987-09-15 | Newport News Shipbuilding And Dry Dock Company | Muffler for gas inducting machinery generating low frequency noise |
| CN2709656Y (en) * | 2004-10-14 | 2005-07-13 | 上汽集团奇瑞汽车有限公司 | Vehicle silencer |
| WO2014084586A1 (en) * | 2012-11-27 | 2014-06-05 | (주)휘일 | Muffler for air conditioner |
| CN105946502A (en) * | 2016-05-03 | 2016-09-21 | 北京新能源汽车股份有限公司 | Silencing pipe assembly for air conditioner and electric automobile with same |
| CN106482318A (en) * | 2016-09-20 | 2017-03-08 | 奇瑞汽车股份有限公司 | A kind of adjustable air-conditioning duct deafener |
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| Publication number | Publication date |
|---|---|
| CN108819653A (en) | 2018-11-16 |
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