CN110397572B - Silencer, compressor and air conditioner - Google Patents
Silencer, compressor and air conditioner Download PDFInfo
- Publication number
- CN110397572B CN110397572B CN201910802652.XA CN201910802652A CN110397572B CN 110397572 B CN110397572 B CN 110397572B CN 201910802652 A CN201910802652 A CN 201910802652A CN 110397572 B CN110397572 B CN 110397572B
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- Prior art keywords
- cavity
- exhaust
- air inlet
- exhaust cavity
- silencer
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
Abstract
The invention provides a silencer, a compressor and an air conditioner, wherein the silencer comprises: an air inlet cavity and an air exhaust cavity; one end of the air inlet cavity is axially connected with one end of the exhaust cavity, the inner cavity of the air inlet cavity is communicated with the inner cavity of the exhaust cavity to form a silencing cavity, the volume of the silencing cavity can be changed by adjusting the sleeving length of the air inlet cavity and the exhaust cavity, and noises in different frequency bands are eliminated. The silencer realizes the volume adjustable function of the silencer by the aid of the split design of the air inlet cavity and the air exhaust cavity and the clamping part with the locking nut, and realizes targeted silencing effect by adjusting the volume of the silencing cavity to adjust the peak position of silencing quantity of the silencer according to the noise peak frequency condition of the compressor. Therefore, the universality of the silencer is improved, the production cost is reduced, and the design period of parts can be greatly shortened.
Description
Technical Field
The invention belongs to the technical field of compressors, and particularly relates to a silencer, a compressor and an air conditioner.
Background
At present, exhaust capsule type silencers are installed in reciprocating piston compressors, the silencing characteristic of the silencer is determined by the internal volume of the silencer, but the currently and generally adopted capsule type silencers cannot be adjusted after being installed, meanwhile, the production period is long, the sampling cost is high in the design stage, and the universality of different types of the reciprocating piston compressors is poor.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the volume of the silencer in the prior art is not adjustable and cannot be adjusted to meet the requirements of different silencing frequency bands, thereby providing a silencer, a compressor and an air conditioner.
In order to solve the above problems, the present invention provides a muffler comprising:
an air inlet cavity and an air exhaust cavity;
one end of the air inlet cavity is axially connected with one end of the exhaust cavity, the inner cavity of the air inlet cavity is communicated with the inner cavity of the exhaust cavity to form a silencing cavity, the volume of the silencing cavity can be changed by adjusting the sleeving length of the air inlet cavity and the exhaust cavity, and noises in different frequency bands are eliminated.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, the other end of the air inlet cavity is provided with an air inlet, and the other end of the air exhaust cavity is provided with an air exhaust.
Preferably, a clamping part is arranged on the exhaust cavity and used for clamping and fixing the air inlet cavity and the exhaust cavity.
Preferably, the clamping part is lamella formula socket joint structure, and the clamping part includes lock nut, twists lock nut and realizes the chucking of lamella formula socket joint structure or loosen.
Preferably, an exhaust partition plate is arranged in the exhaust cavity, the exhaust partition plate separates the inner cavity of the exhaust cavity into a first exhaust cavity and a second exhaust cavity, the second exhaust cavity is close to the exhaust port, the end part of the first exhaust cavity is open, at least part of the air inlet cavity is sleeved in the first exhaust cavity, and the length of the air inlet cavity extending into the first exhaust cavity is adjusted to change the volume of the first exhaust cavity.
Preferably, a partition board inserting tube is arranged on the exhaust partition board, the axis of the partition board inserting tube is parallel to the axis of the exhaust cavity, a first end of the partition board inserting tube extends into the first exhaust cavity, and a second end of the partition board inserting tube extends into the second exhaust cavity.
Preferably, the end part of the air inlet cavity, which is sleeved with the exhaust cavity, is provided with an air inlet partition plate, and the air inlet partition plate is provided with at least one through hole; the first exhaust cavity is sealed by the air inlet partition plate and the exhaust partition plate to form a resonant cavity.
Preferably, the through-hole comprises a cannula hole corresponding in position to the septum cannula, the first end of the septum cannula being insertable through the cannula hole.
Preferably, at least one group of first resonance holes penetrating through the wall of the partition board inserting tube are formed in the tube body of the partition board inserting tube, wherein the tube body is located in the first exhaust cavity.
Preferably, the through hole further includes a second resonance hole.
Preferably, the inner wall of the bottom of the second exhaust cavity is provided with a limiting step, and the limiting step limits the maximum length of the air inlet cavity extending into the second exhaust cavity.
Preferably, an air inlet cannula is arranged on the air inlet and extends into the silencing cavity, and/or an air outlet cannula is arranged on the air outlet and extends into the silencing cavity.
A compressor employs any of the above silencers.
An air conditioner employs any of the above silencers.
The silencer, the compressor and the air conditioner provided by the invention at least have the following beneficial effects:
the silencer realizes the volume adjustable function of the silencer by the aid of the split design of the air inlet cavity and the air exhaust cavity and the clamping part with the locking nut, and realizes targeted silencing effect by adjusting the volume of the silencing cavity to adjust the peak position of silencing quantity of the silencer according to the noise peak frequency condition of the compressor. Therefore, the universality of the silencer is improved, the production cost is reduced, and the design period of parts can be greatly shortened.
Drawings
FIG. 1 is a schematic structural view of a muffler according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a muffler of an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating adjustment of the sleeving length of the exhaust cavity and the intake cavity according to the embodiment of the present invention.
The reference numerals are represented as:
1. an air inlet cavity; 2. an exhaust cavity; 3. a clamping part; 4. locking the nut; 5. an exhaust separator; 6. a first exhaust cavity; 7. a second exhaust chamber; 8. a baffle plate inserting pipe; 9. a first end of a septum cannula; 10. a second end of the septum cannula; 11. a resonant cavity; 12. a first resonant aperture; 13. a second resonance hole; 14. a limiting step; 15. an air inlet pipe; 16. an exhaust cannula; 17. an air inlet; 18. an exhaust port; 19. an air intake partition plate; 20. a cannula hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, a silencer includes: an air inlet cavity 1 and an air exhaust cavity 2; one end of the air inlet cavity 1 is axially connected with one end of the exhaust cavity 2, the inner cavity of the air inlet cavity 1 is communicated with the inner cavity of the exhaust cavity 2 to form a silencing cavity, the volume of the silencing cavity can be changed by adjusting the sleeving length of the air inlet cavity 1 and the exhaust cavity 2, and noises in different frequency bands are eliminated.
The silencer of this embodiment can be connected in the compressor exhaust pipe, installs the position that is close to the bent axle between cylinder block and compressor upper cover, and the refrigerant gets into the silencer through exhaust valve group subassembly after compressing in the compressor cylinder, discharges after silencing in the silencer. In the split design, the air inlet cavity 1 is sleeved in the air exhaust cavity 2, or the air exhaust cavity 2 is sleeved in the air inlet cavity 1, and the air inlet cavity 1 and the air exhaust cavity can move relatively along the axial direction. According to the compressor noise peak frequency condition, thereby can be online, not change the volume that cup joints length change inside amortization chamber of two cavitys under the condition of part, and then adjust muffler amortization volume peak position, satisfy the demand of different amortization frequency channels, realize the noise cancelling effect of pertinence, can't adjust after having solved among the prior art integral type muffler installation, adaptability is poor problem.
Because the volume of the silencer is adjustable, the universality of the silencer is improved, the requirements of different displacement machine types can be met, the die sinking cost is reduced, and the design period of parts can be shortened.
In this embodiment, the other end of the air inlet cavity 1 is provided with an air inlet 17, the other end of the air outlet cavity 2 is provided with an air outlet 18, the air inlet 17 is connected to an air outlet valve assembly of the compressor, and the air outlet 18 is connected to an external refrigerant flow path. The silencer can also be connected in series or in parallel in the exhaust pipeline of the rotor compressor or the pipeline of the air conditioning system.
In this embodiment, air inlet cavity 1 and exhaust cavity 2 adopt mobilizable mode of cup jointing, are equipped with clamping part 3 on exhaust cavity 2, and clamping part 3 is used for fixing air inlet cavity 1 and exhaust cavity 2 relative position chucking. Chucking part 3 is lamella formula cup joint structure, and chucking part 3 includes lock nut 4, and the flexible groove has been seted up on the lamella formula cup joint structure, twists lock nut 4 and realizes the chucking of lamella formula cup joint structure or loosen, and lock nut 4 internal diameter adds the tapering that has with man-hour, guarantees the locking and the sealing of air inlet cavity 1 and exhaust cavity 2. Specifically, the locking nut 4 is screwed inwards, the petal-shaped structure shrinks inwards, the air inlet cavity 1 is clamped, and the sleeving part is sealed by utilizing the self sealing performance. Conversely, the locking nut 4 is screwed outwards, the petal type structure expands outwards, the air inlet cavity 1 is released, the air inlet cavity 1 can be drawn out or inserted, and the sleeving length of the air inlet cavity 1 and the air exhaust cavity 2 is changed.
In this embodiment, be equipped with exhaust baffle 5 in the exhaust cavity 2, exhaust baffle 5 separates the 2 inner chambers in exhaust cavity for first exhaust chamber 6, second exhaust chamber 7, and second exhaust chamber 7 is close to the gas vent, and 6 tip in first exhaust chamber are opened, and at least part of the cavity of admitting air 1 cup joints in first exhaust chamber 6, adjusts the length that the cavity of admitting air 1 stretched into first exhaust chamber 6 and can change the volume of first exhaust chamber 6. A clapboard inserting tube 8 is arranged on the exhaust clapboard 5, the axis of the clapboard inserting tube 8 is parallel to the axis of the exhaust cavity 2, the first end 9 of the clapboard inserting tube extends into the first exhaust cavity 6, and the second end 10 of the clapboard inserting tube extends into the second exhaust cavity 7. The exhaust baffle 5 also separates the silencing cavity enclosed by the air inlet cavity 1 and the exhaust cavity 2 into two cavities, the two cavities are communicated in a mode of a baffle inserting pipe 8, and the frequency point of zero silencing quantity of the silencer can be solved by adopting an inserting pipe structure.
In this embodiment, an air inlet partition plate 19 is arranged at the end of the air inlet cavity 1 sleeved with the exhaust cavity 2, and at least one through hole is arranged on the air inlet partition plate 19; the intake partition 19 and the exhaust partition 5 enclose the first exhaust cavity 6 to form a resonance cavity 11, and the resonance cavity 11 can improve the silencing effect of the silencer by utilizing the helmholtz resonance principle. Meanwhile, according to the actual noise spectrum condition, the volume of the resonant cavity structure can be adjusted to realize the targeted silencing of specific frequency band noise, and the overall noise reduction effect of the silencer is improved.
In this embodiment, the through-hole comprises a cannula hole 20, the cannula hole 20 corresponding to the position of the septum cannula 8, and the first end 9 of the septum cannula being insertable through the cannula hole 20. When the air inlet cavity 1 and the exhaust cavity 2 move relatively, when the sleeve joint length reaches a certain value, the partition board inserting pipe 8 penetrates through the inserting pipe hole 20 to directly communicate the air inlet cavity and the second exhaust cavity 7 in the air inlet cavity 1, and at the moment, the first exhaust cavity 6 is a blind cavity. At least one set of first resonance holes 12 penetrating through the pipe wall of the partition board inserting pipe 8 are formed in the pipe body of the partition board inserting pipe 8, which is located in the first exhaust cavity 6, and/or the through holes further comprise second resonance holes 13, the first exhaust cavity 6 and the first resonance holes 12, or the first exhaust cavity 6 and the second resonance holes 13, or the first exhaust cavity 6, the first resonance holes 12 and the second resonance holes 13 form a Helmholtz resonance cavity, so that a resonance noise reduction effect is realized.
In this embodiment, the inner wall of the bottom of the second exhaust cavity 7 is provided with a limiting step 14, and the limiting step 14 limits the maximum length of the air inlet cavity 1 extending into the first exhaust cavity 6.
In this embodiment, an air inlet cannula 15 is provided on the air inlet, the air inlet cannula 15 extends into the silencing cavity, and/or an air outlet cannula 16 is provided on the air outlet, and the air outlet cannula 16 extends into the silencing cavity. The air inlet insertion pipe 15, the exhaust insertion pipe 16 and the clapboard insertion pipe 8 can form a double-insertion-pipe structure, so that the frequency point that the silencing quantity of the silencer is zero is solved. The lengths and the insertion depths of the air inlet insertion pipe 15, the clapboard insertion pipe 8 and the exhaust insertion pipe 16 can be designed according to actual conditions so as to achieve the optimal silencing effect.
The material of the cavity in this embodiment may be metal or plastic. The connection mode of the air inlet cavity and the air exhaust cavity of the metal material silencer can be hot sleeve connection, and the connection mode of the air inlet cavity and the air exhaust cavity of the plastic material silencer can be bonding connection or locking nut connection.
According to the embodiment of the invention, the air inlet cavity 1 and the air exhaust cavity 2 are designed in a split manner, the volume of the silencer is adjustable by the clamping part with the locking nut 4, and the peak position of the silencing quantity of the silencer is adjusted by adjusting the volume of the silencing cavity according to the noise peak frequency condition of the compressor, so that the targeted silencing effect is realized. Therefore, the universality of the silencer is improved, the production cost is reduced, and the design period of parts can be greatly shortened.
A compressor employs any of the above silencers.
An air conditioner employs any of the above silencers.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not limited to the above preferred embodiments, but includes all modifications, equivalents, and improvements within the spirit and scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (9)
1. A muffler, comprising:
the air inlet cavity (1) and the exhaust cavity (2);
one end of the air inlet cavity (1) is axially connected with one end of the exhaust cavity (2), an inner cavity of the air inlet cavity (1) is communicated with an inner cavity of the exhaust cavity (2) to form a silencing cavity, the volume of the silencing cavity can be changed by adjusting the sleeving length of the air inlet cavity (1) and the exhaust cavity (2), and noises in different frequency bands are eliminated;
the exhaust cavity (2) is provided with a clamping part (3), the clamping part (3) is used for clamping and fixing the air inlet cavity (1) and the exhaust cavity (2), the clamping part (3) is of a petal type sleeving structure, the clamping part (3) comprises a locking nut (4), and the locking nut (4) is screwed to clamp or loosen the petal type sleeving structure;
the end part of the air inlet cavity (1) which is sleeved with the exhaust cavity (2) is provided with an air inlet partition plate (19), and the air inlet partition plate (19) is provided with an inserting pipe hole (20) and a second resonance hole (13);
an exhaust partition plate (5) is arranged in the exhaust cavity (2), the exhaust partition plate (5) partitions the inner cavity of the exhaust cavity (2) into a first exhaust cavity (6) and a second exhaust cavity (7), the second exhaust cavity (7) is close to the exhaust port (18), the end part of the first exhaust cavity (6) is open, at least part of the air inlet cavity (1) is sleeved in the first exhaust cavity (6), the length of the air inlet cavity (1) extending into the first exhaust cavity (6) is adjusted to change the volume of the first exhaust cavity (6), and the volumes of the second exhaust cavity (7) and the air inlet cavity (1) are unchanged in the volume change process of the first exhaust cavity (6);
the inner wall of the bottom of the first exhaust cavity (6) is provided with a limiting step (14), and the limiting step (14) limits the maximum length of the air inlet cavity (1) extending into the first exhaust cavity (6) so as to limit the minimum volume of the first exhaust cavity (6).
2. A silencer according to claim 1, characterized in that the other end of the inlet chamber (1) is provided with an inlet opening (17) and the other end of the outlet chamber (2) is provided with an outlet opening (18).
3. A silencer according to claim 1, characterized in that the exhaust baffle (5) is provided with a baffle insert tube (8), the axis of the baffle insert tube (8) being parallel to the axis of the exhaust chamber (2), the first end (9) of the baffle insert tube extending into the first exhaust chamber (6) and the second end (10) of the baffle insert tube extending into the second exhaust chamber (7).
4. A silencer according to claim 3, characterized in that the inlet partition (19) and the outlet partition (5) enclose the first outlet chamber (6) forming a resonance chamber (11).
5. A silencer according to claim 4, characterized in that the plug-in opening (20) corresponds in position to the baffle spigot (8), the first end (9) of which can be passed through the plug-in opening (20).
6. A silencer according to claim 3, characterized in that the body of the baffle insert pipe (8) located in the first venting chamber (6) is provided with at least one set of first resonance holes (12) penetrating the wall of the baffle insert pipe (8).
7. A silencer according to any of claims 2-6, characterized in that the inlet opening (17) is provided with an inlet pipe (15), which inlet pipe (15) extends into the silencing chamber, and/or the outlet opening (18) is provided with an outlet pipe (16), which outlet pipe (16) extends into the silencing chamber.
8. A compressor, characterized in that a muffler according to any one of claims 1 to 7 is used.
9. An air conditioner characterized by using the silencer according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802652.XA CN110397572B (en) | 2019-08-28 | 2019-08-28 | Silencer, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802652.XA CN110397572B (en) | 2019-08-28 | 2019-08-28 | Silencer, compressor and air conditioner |
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| Publication Number | Publication Date |
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| CN110397572A CN110397572A (en) | 2019-11-01 |
| CN110397572B true CN110397572B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910802652.XA Active CN110397572B (en) | 2019-08-28 | 2019-08-28 | Silencer, compressor and air conditioner |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966159A (en) * | 2019-11-13 | 2020-04-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Exhaust system and compressor in compressor |
| CN217979233U (en) * | 2021-04-30 | 2022-12-06 | 浙江盾安禾田金属有限公司 | Silencer and air conditioner with same |
| CN113217339A (en) * | 2021-05-27 | 2021-08-06 | 莆田市斯凡登电子商务有限公司 | Silencing equipment for air pressure system |
| CN114838495A (en) * | 2022-03-29 | 2022-08-02 | 青岛海尔空调器有限总公司 | Adjustable air conditioner muffler |
| CN114688720A (en) * | 2022-03-29 | 2022-07-01 | 青岛海尔空调器有限总公司 | Control method and device for noise reduction of air conditioner |
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| CN102433964B (en) * | 2011-12-29 | 2014-05-21 | 张厚 | Extruded steel bar straight thread connecting sleeve |
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| US5584674A (en) * | 1993-04-24 | 1996-12-17 | Samsung Electronics Co., Ltd. | Noise attenuator of compressor |
| JPH09144701A (en) * | 1995-11-16 | 1997-06-03 | Mitsubishi Heavy Ind Ltd | Accumulatable silencer |
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| CN110397572A (en) | 2019-11-01 |
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