CN213454189U - Silencer and air conditioner - Google Patents
Silencer and air conditioner Download PDFInfo
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- CN213454189U CN213454189U CN202022715759.1U CN202022715759U CN213454189U CN 213454189 U CN213454189 U CN 213454189U CN 202022715759 U CN202022715759 U CN 202022715759U CN 213454189 U CN213454189 U CN 213454189U
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Abstract
The utility model provides a silencer and an air conditioner, wherein the silencer comprises a silencing shell and an adjustable inner pipe, a silencing cavity is arranged in the silencing shell, an inlet and an outlet are arranged at two ends of the silencing shell, the diameters of the inlet and the outlet are both smaller than the maximum inner diameter of the silencing shell, and the adjustable inner pipe is positioned in the silencing cavity; a first communicating port and a second communicating port are respectively formed at two ends of the adjustable inner pipe, and the diameter of the first communicating port is smaller than the maximum inner diameter of the adjustable inner pipe; the periphery wall of adjustable inner tube and the inner wall laminating of amortization casing are provided with the regulation pole on the periphery wall of adjustable inner tube, offer the spout along axial extension on the periphery wall of amortization casing, adjust the pole and stretch into in the spout and can slide along the extending direction of spout, and the periphery wall of adjustable inner tube covers the spout. The silencer can realize the function of switching between a single cavity and multiple cavities, and the silencing frequency range is wider.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner technique and specifically relates to a muffler and air conditioner is related to.
Background
In an air conditioning system, a reactive muffler is generally used to eliminate noise in a certain frequency band, and the length of a silencing cavity of the muffler directly influences the size of an effective silencing frequency band. However, the reactive mufflers used in the prior art are generally single muffling chambers, and the lengths of the muffling chambers are fixed. Because the length of the silencing cavity has a certain error with the calculated value of the theoretical optimal silencing frequency, the optimal silencing effect cannot be achieved. Therefore, there is a need to optimize existing muffler structures.
Disclosure of Invention
The utility model discloses a first purpose provides a can realize the function of switching over each other of single cavity and multi-chamber, and the broader muffler of amortization frequency channel.
The second objective of the present invention is to provide an air conditioner with the above mentioned silencer.
In order to achieve the first purpose, the utility model provides a silencer, which comprises a silencing shell and an adjustable inner pipe, wherein a silencing cavity is arranged in the silencing shell, an inlet and an outlet are arranged at two ends of the silencing shell, the diameters of the inlet and the outlet are both smaller than the maximum inner diameter of the silencing shell, and the adjustable inner pipe is positioned in the silencing cavity; a first communicating port and a second communicating port are respectively formed at two ends of the adjustable inner pipe, and the diameter of the first communicating port is smaller than the maximum inner diameter of the adjustable inner pipe; the periphery wall of adjustable inner tube and the laminating of the inner wall of amortization casing are provided with the regulation pole on the periphery wall of adjustable inner tube, offer the spout along the axial extension of amortization casing on the periphery wall of amortization casing, adjust the pole and stretch into in the spout and can slide along the extending direction of spout, and the periphery wall of adjustable inner tube covers the spout.
It is from top to bottom seen, with adjustable inner tube setting in the inside of amortization casing, through the axial motion of adjusting adjustable inner tube along the amortization casing, play the switching of single amortization cavity and many amortization cavities to and the regulation of cavity length. When the end wall of the adjustable inner pipe provided with the first communication port is in contact with the end wall of the first shell, the adjustable inner pipe is a single-cavity silencer; when the end wall of the adjustable inner pipe provided with the first communication port is separated from the end wall of the first shell, the adjustable inner pipe becomes a multi-cavity silencer, and the multi-cavity silencer is called. When the multi-cavity silencer is adjusted to be a multi-cavity silencer, the multi-cavity silencer is equivalent to a series silencer, so that the silencing frequency range is wider, and the silencing effect is better. In addition, the adjustable inner pipe is driven to move through the adjusting rod, when the best noise reduction is achieved, the adjusting rod stops moving, so that the noise reduction is controllable and adjustable, and the effect that the noise reduction is more accurate is achieved.
In a preferred embodiment, the sound-deadening housing comprises a first housing and a second housing which are fixedly connected; the first shell comprises an inlet section, a first transition section and a first cylinder section which are sequentially connected along the axial direction, and the inlet is positioned at the free end of the inlet section; the second shell comprises an outlet section, a second transition section and a second cylinder section which are sequentially connected along the axial direction, and the outlet is positioned at the free end of the outlet section; the first transition section, the first cylinder section, the second cylinder section and the second transition section are enclosed to form a silencing cavity; the first cylinder section is fixedly connected with the second cylinder section, the inner diameter of the first cylinder section is equal to that of the second cylinder section, and the inner diameters of the inlet section and the outlet section are both smaller than that of the first cylinder section.
Therefore, the first shell and the second shell are fixedly connected to form the sound attenuation shell, so that the adjustable inner pipe can be assembled conveniently. The internal diameter of first barrel section equals with the internal diameter of second barrel section for the inner wall of first barrel section and the smooth transition of the inner wall of second barrel section guarantee that adjustable inner tube slides smoothly inside amortization casing.
The adjustable inner tube comprises a third transition section and a third cylinder section which are connected along the axial direction, the first communication port is located at the end of the third transition section, the second communication port is located at the end of the third cylinder section, the outer peripheral wall of the third transition section is attached to the inner peripheral wall of the first transition section, and the outer peripheral wall of the third cylinder section is attached to the inner peripheral wall of the first cylinder section.
It follows that it is ensured that the adjustable inner tube can form a single-chamber silencer with the silencer housing.
The first transition section, the second transition section and the third transition section are in a circular truncated cone shape.
Preferably, the diameter of the first communication opening is equal to the inner diameter of the inlet section.
Preferably, the inner diameters of the inlet section and the outlet section are equal.
Preferably, the first housing, the second housing and the adjustable inner tube are coaxially arranged.
According to a preferable scheme, the peripheral wall of the adjustable inner pipe is provided with a fixing hole, and the adjusting rod is in threaded connection with the fixing hole.
Preferably, the diameter of the second communication port is smaller than or equal to the maximum inner diameter of the adjustable inner tube.
Therefore, when the diameter of the second communication port is smaller than the maximum inner diameter of the adjustable inner pipe, the three cavities are changed for noise reduction, so that the noise reduction frequency band is further improved, and the noise reduction effect is better.
The number of the adjusting rods and the number of the sliding grooves are two, the two adjusting rods are arranged oppositely along the radial direction of the adjustable inner pipe, and each adjusting rod extends into the corresponding sliding groove.
Therefore, the two adjusting rods are symmetrically arranged, so that the stress balance of the adjustable inner tube is guaranteed, and the adjustable inner tube can slide more smoothly.
In order to achieve the second objective, the present invention provides an air conditioner, including the above-mentioned silencer.
Drawings
Fig. 1 is a structural view of a first embodiment of the muffler of the present invention.
Fig. 2 is an exploded view of a first embodiment of the muffler of the present invention.
Fig. 3 is a cross-sectional view of a first embodiment of the muffler of the present invention as a single chamber muffler.
Fig. 4 is a cross-sectional view of a first embodiment of the muffler of the present invention as a multi-chamber muffler.
Figure 5 is a cross-sectional view of a second embodiment of the muffler of the present invention.
The present invention will be further explained with reference to the drawings and examples.
Detailed Description
First embodiment of muffler and air conditioner
The air conditioner of the present embodiment includes a muffler.
Referring to fig. 1 to 4, the muffler comprises a coaxially arranged muffler shell and an adjustable inner pipe 3. The sound-deadening housing includes a first housing 1 and a second housing 2 which are fixedly connected.
The first casing 1 comprises an inlet section 11, a first transition section 12 and a first cylinder section 13 which are connected in sequence along the axial direction. The second casing 2 comprises an outlet section 21, a second transition section 22 and a second cylinder section 23 which are connected in sequence along the axial direction. The first transition section 12, the first cylinder section 13, the second cylinder section 23 and the second transition section 22 enclose a sound damping chamber 10. The first cylinder section 13 is fixedly connected with the second cylinder section 23 by screw threads, the inner diameter of the first cylinder section 13 is equal to the inner diameter of the second cylinder section 23, and the inner diameter of the inlet section 11 and the inner diameter of the outlet section 21 are equal and are both smaller than the inner diameter of the first cylinder section 13. The free end of the inlet section 11 is provided with an inlet, the free end of the outlet section 21 is provided with an outlet,
the adjustable inner tube 3 is located in the sound-damping chamber 10, the adjustable inner tube 3 comprising a third transition section 31 and a third cylinder section 32 connected along the axial direction, the outer circumferential wall of the third cylinder section 32 being in abutment with the inner circumferential wall of the first cylinder section 13 and the outer circumferential wall of the third cylinder section 32 being in abutment with the inner circumferential wall of the second cylinder section 23.
The free end of the third transition section 31 is provided with a first communication port 311, the free end of the third cylinder section 32 is provided with a second communication port 321, the first communication port 311 and the second communication port 321 are both communicated with the silencing chamber 10, the diameter of the first communication port 311 is smaller than the maximum inner diameter of the adjustable inner tube 3, and the diameter of the first communication port 311 is equal to the inner diameter of the inlet section 11. The first transition section 12, the second transition section 22 and the third transition section 31 are all in a circular truncated cone shape.
The peripheral wall of the adjustable inner tube 3 is provided with a fixing hole 33 extending along the radial direction of the adjustable inner tube 3, the adjusting rod 34 is in threaded connection with the fixing hole 33, the second cylinder section 23 is provided with a sliding groove 231 extending along the axial direction of the silencing shell, the adjusting rod 34 extends into the sliding groove 231 and can slide along the extending direction of the sliding groove 231, and the peripheral wall of the adjustable inner tube 3 covers the sliding groove 231 to prevent a refrigerant medium or incident waves from leaking from the sliding groove 231. The number of the adjusting rods 34 and the sliding grooves 231 is two, the two adjusting rods 34 are oppositely arranged along the radial direction of the adjustable inner tube 3, and each adjusting rod 34 extends into the corresponding sliding groove 231.
As shown in fig. 3, when the adjustable inner pipe 3 moves to the extreme position to the left, the outer peripheral wall of the third transition section 31 closely fits the inner peripheral wall of the first transition section 12, and at this time, the muffler has only one muffling chamber surrounded by the third transition section 31, the third cylinder section 32, the second cylinder section 23 and the second transition section 22, and the muffler is a single-chamber muffler. As shown in fig. 4, when the adjustable inner pipe 4 moves to the right, the outer peripheral wall of the third transition section 31 is separated from the inner peripheral wall of the first transition section 12, and the interior of the muffler includes a first sound-deadening chamber 100 surrounded by the first transition section 12, the first cylinder section 13, the third transition section 31, and the third cylinder section 32, and a second sound-deadening chamber 200 surrounded by the third transition section 31, the third cylinder section 32, the second cylinder section 23, and the second transition section 22, and the muffler is a multi-chamber muffler. When the multi-cavity silencer is adjusted, the plurality of silencers are connected in series, so that the silencing frequency band is wider, and a better silencing effect is achieved.
It is from top to bottom seen, with adjustable inner tube setting in the inside of amortization casing, through adjusting its along axial motion, play the switching of single amortization cavity and many amortization cavities to and the regulation of cavity length. In addition, the adjustable inner pipe is driven to move through the adjusting rod, when the best noise reduction is achieved, the adjusting rod stops moving, so that the noise reduction is controllable and adjustable, and the effect that the noise reduction is more accurate is achieved.
Second embodiment of muffler and air conditioner
As a description of the second embodiment of the silencer and the air conditioner of the present invention, only the differences from the first embodiment of the silencer and the air conditioner will be described below.
Referring to fig. 5, the adjustable inner tube 330 includes a third transition section 331, a third cylinder section 332, and a fourth transition section 333, which are sequentially connected along an axis, the second communication port 3321 is located at a free end of the fourth transition section 333, and the fourth transition section 333 is in a circular truncated cone shape.
When the adjustable inner tube 340 moves leftwards to the limit position, the outer peripheral wall of the third transition section 331 is closely attached to the inner peripheral wall of the first transition section 312 of the first housing 310. When the adjustable inner tube 340 moves to the right to the limit position, the outer circumferential wall of the fourth transition section 333 is closely attached to the inner circumferential wall of the second transition section 322 of the second housing 320. When the adjustable inner pipe is positioned at the two positions, the silencer is a double-cavity silencer. When the adjustable inner pipe 340 is located at the middle position of the two positions, the silencer is a three-cavity silencer.
In addition, a sealing element can be arranged between the outer peripheral wall of one end, close to the second communication port, of the adjustable inner pipe and the second shell, so that the sealing performance inside the silencer is improved. The number and shape of the adjusting rods and the chutes can also be changed as required. The above changes also enable the object of the present invention to be achieved.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, and are not intended to limit the scope of the present invention, as those skilled in the art will appreciate that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended to cover all such modifications, equivalents, and improvements as fall within the true spirit and scope of the invention.
Claims (11)
1. The silencer is characterized by comprising a silencing shell and an adjustable inner pipe, wherein a silencing cavity is arranged in the silencing shell, an inlet and an outlet are arranged at two ends of the silencing shell, the diameters of the inlet and the outlet are both smaller than the maximum inner diameter of the silencing shell, and the adjustable inner pipe is positioned in the silencing cavity;
a first communication port and a second communication port are respectively formed in two ends of the adjustable inner pipe, and the diameter of the first communication port is smaller than the maximum inner diameter of the adjustable inner pipe;
the periphery wall of adjustable inner tube with the laminating of the inner wall of amortization casing, be provided with the regulation pole on the periphery wall of adjustable inner tube, set up on the periphery wall of amortization casing along the axially extended spout of amortization casing, it stretches into to adjust the pole in the spout and can along the extending direction of spout slides, the periphery wall of adjustable inner tube covers the spout.
2. The muffler of claim 1, wherein:
the silencing shell comprises a first shell and a second shell which are fixedly connected;
the first shell comprises an inlet section, a first transition section and a first cylinder section which are sequentially connected along the axial direction, and the inlet is positioned at the free end of the inlet section;
the second shell comprises an outlet section, a second transition section and a second cylinder section which are sequentially connected along the axial direction, and the outlet is positioned at the free end of the outlet section;
the first transition section, the first barrel section, the second barrel section, and the second transition section enclose the muffling chamber;
the first cylinder section is fixedly connected with the second cylinder section, the inner diameter of the first cylinder section is equal to that of the second cylinder section, and the inner diameter of the inlet section and the inner diameter of the outlet section are both smaller than that of the first cylinder section.
3. The muffler of claim 2, wherein:
the adjustable inner tube includes along axially connected third changeover portion and third barrel section, first intercommunication mouth is located the tip of third changeover portion, the second intercommunication mouth is located the tip of third barrel section, the periphery wall of third changeover portion with the interior perisporium laminating of first changeover portion, the periphery wall of third barrel section with the interior perisporium laminating of first barrel section.
4. The muffler of claim 3, wherein:
the first transition section, the second transition section and the third transition section are all in a round table shape.
5. The muffler according to any one of claims 2 to 4, wherein:
the diameter of the first communication port is equal to the inner diameter of the inlet section.
6. The muffler according to any one of claims 2 to 4, wherein:
the inlet section and the outlet section have an inner diameter equal to each other.
7. The muffler according to any one of claims 2 to 4, wherein:
the first shell, the second shell and the adjustable inner tube are coaxially arranged.
8. The muffler according to any one of claims 1 to 4, wherein:
the adjustable inner pipe is characterized in that a fixing hole is formed in the peripheral wall of the adjustable inner pipe, and the adjusting rod is in threaded connection with the fixing hole.
9. The muffler according to any one of claims 1 to 4, wherein:
the diameter of the second communication port is smaller than or equal to the maximum inner diameter of the adjustable inner pipe.
10. The muffler according to any one of claims 1 to 4, wherein:
the number of the adjusting rods and the number of the sliding grooves are two, the two adjusting rods are arranged along the radial direction of the adjustable inner tube in an opposite mode, and each adjusting rod extends into the corresponding sliding groove.
11. An air conditioner characterized by comprising the muffler as recited in any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022715759.1U CN213454189U (en) | 2020-11-20 | 2020-11-20 | Silencer and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022715759.1U CN213454189U (en) | 2020-11-20 | 2020-11-20 | Silencer and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213454189U true CN213454189U (en) | 2021-06-15 |
Family
ID=76303027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022715759.1U Active CN213454189U (en) | 2020-11-20 | 2020-11-20 | Silencer and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213454189U (en) |
-
2020
- 2020-11-20 CN CN202022715759.1U patent/CN213454189U/en active Active
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