CN210440218U - Embedded muffler and rotary compressor with same - Google Patents
Embedded muffler and rotary compressor with same Download PDFInfo
- Publication number
- CN210440218U CN210440218U CN201921118637.5U CN201921118637U CN210440218U CN 210440218 U CN210440218 U CN 210440218U CN 201921118637 U CN201921118637 U CN 201921118637U CN 210440218 U CN210440218 U CN 210440218U
- Authority
- CN
- China
- Prior art keywords
- silencing
- chamber
- silencing chamber
- pipe
- cover
- 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
Abstract
The utility model discloses an embedded silencer and a rotary compressor with the silencing structure, wherein the embedded silencer is arranged inside a rotary compressor shell and comprises an upper silencing cover, a lower silencing cover, a middle clapboard, an inserting pipe, an air inlet pipe and an air outlet pipe; a closed silencing chamber is formed between the upper silencing cover and the lower silencing cover, the middle partition plate divides the silencing chamber into a first silencing chamber and a second silencing chamber, and the volume of the second silencing chamber is greater than or equal to that of the first silencing chamber; the inserting pipe penetrates through the middle partition plate, two ends of the inserting pipe respectively extend into the first silencing chamber and the second silencing chamber, and the extending length of the inserting pipe in the first silencing chamber is longer than that of the inserting pipe in the second silencing chamber; the air inlet pipe is communicated with the first silencing chamber, and the air outlet pipe is communicated with the second silencing chamber. The utility model discloses a muffler simple structure, it is small, utilize expansion amortization and resistance amortization to mutually support, have good well, low frequency noise elimination characteristic, satisfy rotary compressor job requirement under high temperature, high speed, pulsating gas flow condition.
Description
Technical Field
The utility model relates to a rotary compressor technical field specifically is a rotary compressor who relates to an embedded muffler and have this amortization structure.
Background
The rotary compressor is widely applied to electrical appliances such as refrigerators, air conditioners and the like, can generate larger impact noise when working under the conditions of high temperature, high speed and pulsating airflow, and has wider frequency domain. The existing silencing system of the rotary compressor is mainly external, the existing external silencer has single silencing characteristic and narrow silencing frequency; in order to achieve a good silencing effect, the silencer needs to be large in size or designed into a complex structure, the assembly process requirement is high, the welding tightness of the silencing chamber and the shell is difficult to control, and the production efficiency is low.
Chinese patent CN1455116A discloses an inner-intubation silencer of a rotary compressor, which has a simpler structure and a smaller volume, but still has a to-be-improved silencing effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the prior art problem at least, provide an embedded muffler that simple structure, with low costs, noise cancelling effect are good and have this amortization structure's rotary compressor.
In order to achieve the above object, the present invention provides an embedded muffler for a rotary compressor and installed inside a casing of the rotary compressor, the embedded muffler including an upper muffler cover, a lower muffler cover, a middle partition plate, an insertion pipe, an intake pipe, and an outlet pipe;
a closed silencing chamber is formed between the upper silencing cover and the lower silencing cover, the middle partition plate is positioned in the silencing chamber and divides the silencing chamber into a first silencing chamber and a second silencing chamber, and the volume of the second silencing chamber is greater than or equal to that of the first silencing chamber;
the inserting pipe penetrates through the middle partition plate, two ends of the inserting pipe respectively extend into the first silencing chamber and the second silencing chamber, and the extending length of the inserting pipe in the first silencing chamber is longer than that of the inserting pipe in the second silencing chamber;
the air inlet pipe and the air outlet pipe are positioned outside the silencing chamber, the air inlet pipe is communicated with the first silencing chamber, and the air outlet pipe is communicated with the second silencing chamber.
Preferably, the volume of the second sound-deadening chamber is 1 to 2.5 times the volume of the first sound-deadening chamber.
Preferably, the protruding length of the insertion pipe in the first silencing chamber is 2-4 times of the protruding length of the insertion pipe in the second silencing chamber.
Preferably, the upper silencing cover and the lower silencing cover are both semicircular, and a silencing chamber formed between the upper silencing cover and the lower silencing cover is in a flat semicircular shape.
Preferably, the volume ratio of the first silencing cavity to the third silencing cavity is 1: 3-1: 4.
Preferably, the diameter of the insertion tube is smaller than or equal to the diameter of the outlet tube.
Preferably, the length direction of the middle partition board is consistent with the radius direction of the circular rings of the upper partition board and the lower partition board, the insertion pipe penetrates through the middle part of the middle partition board, and the insertion pipe and the middle partition board are vertically arranged.
Preferably, the air inlet pipe and the air outlet pipe are both multi-stage bent pipes.
Preferably, the edges of the upper silencing cover and the lower silencing cover are respectively provided with a groove and a protrusion which are matched with each other, and a closed chamber is formed by welding.
Preferably, a plurality of circular bosses are arranged on the upper silencing cover and/or the lower silencing cover, and the circular bosses extend into the silencing chamber.
The utility model also provides a rotary compressor, it contains above-mentioned embedded muffler, embedded muffler is installed between rotary compressor's motor and base.
The utility model discloses an embedded muffler, compared with the prior art, the utility model has the advantages of it is following:
(1) the structure is simple, the cost is low, the silencer is arranged in the shell of the compressor, a double-layer sound insulation structure is formed between the silencer and the shell, and the sound insulation quantity is large;
(2) the utility model discloses a muffler adopts and sets up the insert tube on the median septum between two amortization rooms, and the insert tube realizes the cooperation of expansion amortization and resistance amortization at the mode of stretching into the length difference of two amortization rooms, has good well, low frequency noise elimination characteristic, satisfies rotary compressor job requirement under high temperature, high-speed, pulsating gas flow condition.
Drawings
Fig. 1 and fig. 2 are schematic perspective views of two different angles of an embedded silencer according to embodiment 1 of the present invention.
Fig. 3 is a front view of an embedded silencer according to embodiment 1 of the present invention.
Reference numerals: 1. a lower sound deadening cover; 2. a silencing cover is arranged; 3. a middle partition plate; 4. an insertion tube; 5. An air outlet pipe; 6. an air inlet pipe; 7. a first muffling chamber; 8. a second muffling chamber; 9. and a circular boss.
Detailed Description
The utility model provides an embedded silencer, the embedded silencer is used for the rotary compressor and is installed inside the rotary compressor shell, the embedded silencer includes an upper silencing cover 2, a lower silencing cover 1, a middle clapboard 3, an inserting pipe 4, an air inlet pipe 6 and an air outlet pipe 5; a closed silencing chamber is formed between the upper silencing cover 2 and the lower silencing cover 1, the middle partition plate 3 is positioned in the silencing chamber and divides the silencing chamber into a first silencing chamber 7 and a second silencing chamber 8, and the volume of the second silencing chamber 8 is greater than or equal to that of the first silencing chamber 7; the inserting pipe 4 penetrates through the middle partition plate 3, two ends of the inserting pipe 4 respectively extend into the first silencing chamber 7 and the second silencing chamber 8, and the extending length of the inserting pipe 4 in the first silencing chamber 7 is longer than that of the inserting pipe 4 in the second silencing chamber 8; the air inlet pipe 6 and the air outlet pipe 5 are positioned outside the silencing chamber, the air inlet pipe 6 is communicated with the first silencing chamber 7, and the air outlet pipe 5 is communicated with the second silencing chamber 8.
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present invention, and it is to be understood that the described embodiments are merely illustrative of some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 to 3, the built-in muffler of the present embodiment includes an upper muffler cover 2, a lower muffler cover 1, a middle partition plate 3, an insert pipe 4, an inlet pipe 6, and an outlet pipe 5.
An airtight silencing chamber is formed between the upper silencing cover 2 and the lower silencing cover 1, the middle partition plate 3 is positioned in the silencing chamber and divides the silencing chamber into a first silencing chamber 7 and a second silencing chamber 8, and the insertion pipe 4 penetrates through the middle partition plate 3 and two ends of the insertion pipe 4 respectively extend into the first silencing chamber 7 and the second silencing chamber 8.
The air inlet pipe 6 and the air outlet pipe 5 are positioned outside the silencing chamber, the air inlet pipe 6 is communicated with the first silencing chamber 7, and the air outlet pipe 5 is communicated with the second silencing chamber 8.
Wherein the volume of the second muffling chamber 8 is greater than or equal to the volume of the first muffling chamber 7; the length of the insertion tube 4 extending into the first sound-deadening chamber 7 is greater than the length of the insertion tube 4 extending into the second sound-deadening chamber 8.
The utility model discloses an embedded muffler is used for rotary compressor and installs inside rotary compressor casing, specifically, the mountable is between rotary compressor's motor and base, can effectively reduce the complete machine height. When the silencer is used, air flow enters the first silencing chamber 7 through the air inlet pipe 6, the middle partition plate 3 obstructs to enable the air flow to enter the second silencing chamber 8 through the guide of the inserting pipe 4, the air flow reaches the purpose of expanding and silencing from the first silencing chamber 7 to the second silencing chamber 8, meanwhile, because the lengths of the inserting pipes extending into the two silencing chambers are different, noise sound waves can reach the purpose of further silencing after reflection and interference, and the air flow flows out along the air outlet pipe 5 after attenuation. The embedded silencer of the utility model has simple structure and low cost, the silencer is arranged inside the shell of the compressor, a double-layer sound insulation structure is formed between the silencer and the shell, and the sound insulation quantity is large; the cooperation of the expanding noise reduction and the resistance noise reduction has good medium and low frequency noise reduction characteristics, and the working under the conditions of high temperature, high speed and pulsating airflow is met.
On the basis of the scheme, the upper silencing cover 2 and the lower silencing cover 1 are both preferably in a semicircular ring shape, and a silencing cavity formed between the upper silencing cover 2 and the lower silencing cover 1 is in a flat semicircular ring shape. The flat semicircular silencing chamber is more convenient for installing the silencer and reduces the volume. Preferably, the edges of the upper silencing cover 2 and the lower silencing cover 1 are respectively provided with a groove and a protrusion which are matched with each other, and a closed chamber is formed by welding. Through the mutual cooperation of recess and arch and adopt welded mode, can make upper muffler lid and lower muffler lid more accurate quick butt joint, and guarantee welded leakproofness.
On the basis of the above scheme, in order to make the silencer of this embodiment have wider silencing frequency spectrum, the silencing effect is better. The volume of the second muffling chamber 8 is preferably 1 to 2.5 times, more preferably 1.5 times, the volume ratio of the first muffling chamber 7 to the second muffling chamber 8 can be adjusted by adjusting the position of the middle partition plate 3, or by designing and adjusting the heights of the upper muffling cover 2 and the lower muffling cover 1 to change the heights of the first muffling chamber 7 and the second muffling chamber 8. Preferably, the length of the insertion tube 4 extending into the first muffling chamber 7 is 2 to 4 times, more preferably 2.5 times, the length of the insertion tube 4 extending into the second muffling chamber 8. The diameter of the insertion tube 4 is smaller than or equal to the diameter of the air outlet tube 5. The diameter of the inserting pipe is smaller than that of the air outlet pipe, so that better resistant noise reduction effect can be realized, and noise generated by air flow impact is reduced.
The whole length of the inserting pipe can be adjusted according to the size of the silencer in the embodiment, and the whole length of the inserting pipe 4 is preferably half of the length of the middle partition plate 3, so that a good silencing effect can be guaranteed, and the silencer is convenient to install.
For convenient processing and installation, the length direction of well baffle 3 is unanimous with the ring radius direction of last baffle and lower baffle, insert tube 4 runs through 3 middle parts of well baffle, and insert tube 4 sets up with the well baffle is perpendicular.
On the basis of the scheme, the air inlet pipe 6 and the air outlet pipe 5 are preferably multi-stage bent pipes and are bent for more than two times. The bent air inlet pipe and the bent air outlet pipe can buffer air flow, and impact noise and vibration noise are reduced. The installation direction of intake pipe and outlet duct can be adjusted according to the installation demand in this embodiment, can not restrict the installation position, can with upper and lower amortization lid parallel mount or perpendicular installation, can not influence the noise cancelling effect. The installation position of the air inlet pipe and the air outlet pipe shown in the figure of the embodiment is not the only installation mode, and is not limited by the utility model.
On the basis of the above scheme, the lower muffling cover of the embodiment is provided with two circular bosses 9 respectively located in the middle of the first muffling chamber 7 and the second muffling chamber 8, and the circular bosses extend into the muffling chamber. The circular boss extends into the size of the adjustable cavity in the silencing cavity, has a buffering effect on air flow, further reduces noise, and can be used as an installation fixing hole to facilitate installation and fix a silencer. The circular bosses can also be arranged on the upper silencing cover, and the shapes and the number of the circular bosses can be selected and adjusted according to actual needs.
Various modifications and variations of the embodiments of the present invention may be made by those skilled in the art, and they are within the scope of the present invention provided they are within the scope of the claims and their equivalents. What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (10)
1. An embedded silencer is characterized in that the embedded silencer is used for a rotary compressor and is installed inside a shell of the rotary compressor, and the embedded silencer comprises an upper silencing cover, a lower silencing cover, a middle partition plate, an insertion pipe, an air inlet pipe and an air outlet pipe;
a closed silencing chamber is formed between the upper silencing cover and the lower silencing cover, the middle partition plate is positioned in the silencing chamber and divides the silencing chamber into a first silencing chamber and a second silencing chamber, and the volume of the second silencing chamber is greater than or equal to that of the first silencing chamber;
the inserting pipe penetrates through the middle partition plate, two ends of the inserting pipe respectively extend into the first silencing chamber and the second silencing chamber, and the extending length of the inserting pipe in the first silencing chamber is longer than that of the inserting pipe in the second silencing chamber;
the air inlet pipe and the air outlet pipe are positioned outside the silencing chamber, the air inlet pipe is communicated with the first silencing chamber, and the air outlet pipe is communicated with the second silencing chamber.
2. The inline muffler according to claim 1, wherein the volume of the second muffling chamber is 1 to 2.5 times the volume of the first muffling chamber.
3. The inline muffler according to claim 1, wherein the insertion pipe protrudes in the first muffling chamber by 2 to 4 times as long as the insertion pipe protrudes in the second muffling chamber.
4. The inline muffler of claim 1, wherein the upper and lower muffling caps are semi-circular, and the muffling chamber formed between the upper and lower muffling caps is flat semi-circular.
5. The inline muffler of claim 1, wherein the diameter of the insertion pipe is less than or equal to the diameter of the outlet pipe.
6. The inline muffler according to claim 1, wherein the length direction of the middle partition is identical to the radius direction of the circular rings of the upper and lower partitions, the insert pipe penetrates the middle of the middle partition, and the insert pipe is disposed perpendicular to the middle partition.
7. The inline muffler of claim 1, wherein the inlet pipe and the outlet pipe are each a multi-stage elbow.
8. The inline muffler of claim 1, wherein the upper muffler cover and the lower muffler cover are provided at their edges with grooves and protrusions, respectively, which are engaged with each other, and are welded to form a closed chamber.
9. The inline muffler of claim 1, wherein the upper and/or lower muffling cover is provided with a plurality of circular bosses that extend into the muffling chamber.
10. A rotary compressor comprising the built-in silencer according to any one of claims 1 to 9, which is installed between a motor and a base of the rotary compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921118637.5U CN210440218U (en) | 2019-07-16 | 2019-07-16 | Embedded muffler and rotary compressor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921118637.5U CN210440218U (en) | 2019-07-16 | 2019-07-16 | Embedded muffler and rotary compressor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210440218U true CN210440218U (en) | 2020-05-01 |
Family
ID=70405750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921118637.5U Active CN210440218U (en) | 2019-07-16 | 2019-07-16 | Embedded muffler and rotary compressor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210440218U (en) |
-
2019
- 2019-07-16 CN CN201921118637.5U patent/CN210440218U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107989775B (en) | Muffler for compressor and compressor | |
| CN110715436A (en) | Impedance type silencing static pressure box | |
| CN105370343A (en) | Silencer | |
| CN210440218U (en) | Embedded muffler and rotary compressor with same | |
| CN211288018U (en) | Silencer, compressor and refrigeration equipment | |
| CN106286222B (en) | Muffler and refrigeration compressor | |
| CN204677259U (en) | A kind of exhaust silencer for screw type unit | |
| CN104832247B (en) | Exhaust silencer for screw-type unit | |
| CN216742049U (en) | Fan device and gas water heater | |
| CN105134555A (en) | Compressor air sucking and sound reduction device with three cavities arranged side by side | |
| CN212841780U (en) | Smoke collecting hood and range hood | |
| CN110701054A (en) | Flange, compressor and air conditioner | |
| CN214370886U (en) | Fresh air conditioner | |
| CN204877858U (en) | Formula compressor muffler of breathing in is arranged side by side in three chambeies | |
| CN113638865A (en) | S-shaped communicating pipe silencer for refrigerator compressor | |
| CN110793181B (en) | Wind pipe machine noise reduction device and method for designing acoustic metamaterial module for same | |
| CN210892097U (en) | Impedance type silencing static pressure box | |
| CN206917701U (en) | Exhaust silencer and gas extraction system | |
| CN212511508U (en) | Compressor exhaust pipe, compressor, air conditioner outdoor unit and air conditioner | |
| CN104820732A (en) | Noise optimization method for engine intake system | |
| CN215597743U (en) | Silencer and silencing device | |
| CN218598406U (en) | Noise eliminator, exhaust pipe and range hood | |
| CN211399933U (en) | Integrated kitchen with function of making an uproar is fallen | |
| CN205422883U (en) | Nested formula silencer | |
| CN215719345U (en) | Silencer, compressor and refrigeration equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210610 Address after: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Huangshi City, Hubei Province Patentee after: Huangshi Dongbei Compressor Co.,Ltd. Address before: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Hubei Province Patentee before: Huangshi Dongbei Electrical Appliance Co.,Ltd. |