CN211623652U - Amortization subassembly and air conditioner - Google Patents

Abstract

The utility model discloses a amortization subassembly to an air conditioner with amortization subassembly is disclosed, wherein the amortization subassembly is applied to the air conditioner, include: an expanded cavity muffler; the wave pipe is provided with an opening end and a blind end, the opening end is communicated with the expansion cavity type silencer, and the wave pipe is spirally wound on the outer surface of the expansion cavity type silencer. The expansion cavity type silencer is connected with the wave pipe, so that the silencing quantity can be improved under the condition that the diameter of the expansion pipe silencer is not changed; the problem of cost caused by adding more silencers can be solved to a certain extent, the problem of low welding efficiency caused by welding the silencers on pipelines is effectively solved, and standardization is easy to realize; the blind end is higher than the open end to ensure that if any liquid drop enters the wave tube, the liquid drop will automatically flow out.

Description

Amortization subassembly and air conditioner

Technical Field

The utility model relates to the field of refrigeration technology, in particular to amortization subassembly and air conditioner.

Background

For refrigeration equipment such as air conditioners, refrigerators and the like, obvious pressure pulsation exists in a system pipeline due to the intermittence of air suction and exhaust of a compressor, and the pressure pulsation can excite the vibration of an inner machine structural part to generate transmission sound. In order to solve the problem of transmission sound, a silencer is generally added to an external machine pipeline. The silencer is an expansion pipe type structure, the area of the inlet and the outlet of the silencer is smaller than the sectional area of the expansion section, and sound wave reflection is used for silencing. Under the condition that the inlet and the outlet are not changed, the larger the sectional area of the expansion section is, the better the effect is.

In order to promote the noise elimination volume under some circumstances, the external diameter of general muffler is very big, and muffler weight is great, leads to the clearance between the pipeline to be very little, falls the back and appears the pipeline easily and warp, bump the risk of pipe, disconnected pipe. Because the refrigeration and heat transfer sound mechanisms are different, the transfer sound frequencies are different, the expanding silencer cannot have a good silencing effect on noises with certain frequencies, and a plurality of silencers are required to be connected in series for use. The multiple silencers are connected in series to use, so that the cost of the pipeline rises, at least four welding ports are required to be welded, the pipeline and the silencers are required to be manually butted, and the problem of low working efficiency is caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an amortization subassembly can promote the noise elimination volume to there is good noise cancelling effect to the noise of a plurality of frequencies.

The utility model discloses still provide an air conditioner with above-mentioned amortization subassembly.

According to the utility model discloses a amortization subassembly of first aspect embodiment is applied to refrigeration plant, include: an expanded cavity muffler; the wave pipe is provided with an opening end and a blind end, the opening end is communicated with the expansion cavity type silencer, the wave pipe is spirally wound on the outer surface of the expansion cavity type silencer, and the blind end is higher than the opening end.

According to the utility model discloses amortization subassembly has following beneficial effect at least: the expansion cavity type silencer is connected with the wave pipe, so that the silencing quantity can be improved under the condition that the diameter of the expansion pipe silencer is not changed; the wave tube has good effect of improving certain specific frequency pulsation; the wavelength tube is wound on the outer wall of the expansion tube silencer, the length of the wavelength tube can be 4 times of that of the silencer, and the length of the silencer can not be lengthened for certain low-frequency pulsation; the problem of cost caused by more additional silencers can be eliminated to a certain extent, the problem of low welding efficiency caused by pipeline welding silencers is effectively solved, and standardization is easy to realize.

According to the utility model discloses a some embodiments still including being used for preventing expand cavate silencer with the lag of wavelength pipe collision, expand cavate silencer and/or the cover is equipped with on the wavelength pipe the lag.

According to some embodiments of the present invention, the blind end of the wave tube is fixedly connected to the expansion chamber muffler.

According to some embodiments of the invention, the helix angle of the wave tube is greater than or equal to 15 °.

According to some embodiments of the invention, the pitch of the wave tube is 10mm-50 mm.

According to some embodiments of the present invention, the helical radius of the wave tube is R2, the outer diameter of the wave tube is d2, the outer diameter of the expanding chamber muffler is R1, satisfying the following relation: R2-R1-d2/2 is not more than 0.5mm and not more than 5 mm.

According to some embodiments of the invention, the length of the wave tube is 100mm-600 mm.

According to some embodiments of the invention, the wave length tube is at least two.

According to the utility model discloses an air conditioner of second aspect embodiment, including foretell amortization subassembly.

According to the utility model discloses air conditioner has following beneficial effect at least: the expansion cavity type silencer is connected with the wave pipe, so that the silencing quantity can be improved under the condition that the diameter of the expansion pipe silencer is not changed; the wave tube has good effect of improving certain specific frequency pulsation; the wavelength tube is wound on the outer wall of the expansion tube silencer, the length of the wavelength tube can be 4 times of that of the silencer, and the length of the silencer can not be lengthened for certain low-frequency pulsation; the problem of cost caused by adding more silencers can be solved to a certain extent, the problem of low welding efficiency caused by welding the silencers on pipelines is effectively solved, and standardization is easy to realize; the blind end is higher than the open end, and the lead angle of the wave tube is larger than or equal to 15 degrees, so that if liquid drops enter the wave tube, the liquid drops can automatically flow out.

According to some embodiments of the utility model, the air conditioner still includes the muffler, the amortization subassembly with the muffler is connected.

According to some embodiments of the utility model, the air conditioner still includes the blast pipe, the amortization subassembly with the blast pipe is connected.

According to some embodiments of the present invention, the air conditioner further comprises a low pressure pipe, the noise reduction assembly is connected to the low pressure pipe.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a muffler assembly according to an embodiment of the present invention;

FIG. 2 is a top view of the muffler assembly shown in FIG. 1;

fig. 3 is a schematic diagram illustrating a connection between a wavelength tube and a protective cover according to an embodiment of the present invention;

FIG. 4 is a schematic view of a muffler assembly according to another embodiment of the present invention;

fig. 5 is a schematic view of an air conditioner according to an embodiment of the present invention.

A sound attenuating assembly 100; an expanded cavity muffler 101; a wave tube 102;

a protective jacket 301;

a first branch 401; a second branch pipe 402;

an air conditioner 501; a compressor 502; an air return pipe 503; an exhaust pipe 504; a low pressure pipe 505.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, the muffler assembly 100 includes an expansion cavity type muffler 101 and a wavelength tube 102, the expansion cavity type muffler 101 forms a sudden change in cross section at an inlet and an outlet at both ends of an expansion section, and a sound wave emitted by a compressor 502 causes impedance mismatch due to a change in cross section in a process of flowing through the expansion cavity type muffler 101, so that a part of the sound wave interferes with an original sound wave, and further, the sound energy radiation flowing through the expansion cavity type muffler 101 is reduced, the purpose of muffling is achieved, and the transmission of the indoor compressor 502 and the indoor sound quality are greatly improved. One end of the wave tube 102 is an open structure and is communicated with the expansion cavity type muffler 101, and the other end is a blind end, so that when sound waves are transmitted into the wave tube 102, the sound waves are reflected at the blind end due to abrupt change of media, and cancellation of the sound waves can be performed.

In some embodiments, the wavelength tube 102 is helically wound around the outer surface of the expanded cavity muffler 101 with the blind end higher than the open end, and the helix angle of the wavelength tube 102 is greater than or equal to 15 °. The wavelength tube 102 is wound on the outer wall of the expansion tube silencer, the length of the wavelength tube 102 can be 4 times of that of the silencer, and the length of the silencer does not need to be lengthened for certain low-frequency pulsation. In the air conditioning system, the refrigerant contains lubricating oil, and the vertical installation of the expansion cavity type silencer 101 can ensure that the lubricating oil is not easy to accumulate in the wavelength tube 102. Meanwhile, from the inlet position of the wavelength tube 102 to the blind end, the wavelength tube 102 is spirally raised, the blind end position of the wavelength tube 102 is higher than the inlet position of the wavelength tube 102, the thread lead angle of the wavelength tube 102 is larger than or equal to 15 degrees, and the lubricating oil is ensured to automatically flow out if entering the wavelength tube 102. Thus, the problem of poor silencing effect caused by the lubricating oil entering the silencing assembly 100 is avoided.

Referring to fig. 2, if the spiral radius of the wavelength tube 102 is R2, the outer diameter of the wavelength tube 102 is d2, and the outer diameter of the expanded cavity muffler 101 is R1, the spiral radius R2 of the wavelength tube 102, the outer diameter d2 of the wavelength tube 102, and the outer diameter R1 of the expanded cavity muffler 101 satisfy the following relations: R2-R1-d2/2 is not more than 0.5mm and not more than 5 mm. In multiple practical applications, the inventor continuously summarizes and finds that when R2-R1-d2/2 is less than 0.5mm, the distance between the wavelength tube 102 and the cavity type silencer is too small, so that the wavelength tube 102 and the cavity type silencer are not easy to mount and are easy to collide. When R2-R1-d2/2 is more than 5mm, the distance between the wavelength tube 102 and the flared muffler is too large, so that the overall volume of the muffler assembly 100 is large, a large installation space needs to be reserved in the air conditioner 501, the difficulty of pipeline arrangement is increased, and meanwhile, the system pipeline has obvious pressure pulsation due to the intermittence of air suction and exhaust of the compressor 502, the pressure pulsation can excite the structural part of the indoor unit to vibrate, so that the vibration amplitude of the wavelength tube 102 is increased, and the risk of collision between the wavelength tube 102 and other pipelines or the flared muffler 101 is increased. In the present embodiment, the spiral radius R2 of the wavelength tube 102, the outer diameter d2 of the wavelength tube 102, and the outer diameter R1 of the expanding cavity muffler 101 satisfy the following relational expression: R2-R1-d2/2 is more than or equal to 0.5mm and less than or equal to 5mm, the overall volume of the sound component can be reasonably reduced, and the risk of collision of the wavelength tube 102 with other pipelines or the expansion cavity type silencer 101 is reduced.

Referring to fig. 3, in some embodiments, the sound attenuation module 100 further comprises a boot 301 for preventing the expanded cavity muffler 101 from colliding with the wavelength tube 102, the boot 301 fitting over the wavelength tube 102. In the operation process of the air conditioner 501, the compressor 502 intermittently inhales and exhausts air to cause obvious pressure pulsation in a system pipeline, the pressure pulsation can excite the internal machine structural part to vibrate, and one end of the wave tube 102 is fixedly connected with the wave tube 102 and the expansion cavity type silencer 101, the other end of the wave tube 102 is a free end, and the wave tube 102 is long in length, so that the wave tube 102 vibrates obviously and is easy to collide with other pipelines or the expansion cavity type silencer 101. In this embodiment, by adding the protective sleeve 301, the protective sleeve 301 is sleeved on the wavelength tube 102, so that the protective sleeve 301 can effectively prevent the expansion cavity type muffler 101 from colliding with the wavelength tube 102. It is understood that in some embodiments, the protection jacket 301 may also be sleeved on the expansion chamber type muffler 101, or the protection jacket 301 may also be sleeved on both the expansion chamber type muffler 101 and the wavelength tube 102.

In some embodiments, the blind end of the wavelength tube 102 is fixedly connected to the expanded cavity muffler 101. In the operation process of the air conditioner 501, the compressor 502 intermittently inhales and exhausts air to cause obvious pressure pulsation in a system pipeline, the pressure pulsation can excite the internal machine structural part to vibrate, and one end of the wave tube 102 is fixedly connected with the wave tube 102 and the expansion cavity type silencer 101, the other end of the wave tube 102 is a free end, and the wave tube 102 is long in length, so that the wave tube 102 vibrates obviously and is easy to collide with other pipelines or the expansion cavity type silencer 101. In this embodiment, the blind end of the corrugated pipe 102 is fixedly connected to the expanded cavity type muffler 101, so that both ends of the corrugated pipe 102 are fixedly connected to the expanded cavity type muffler 101, and the vibration amplitude of the corrugated pipe 102 is reduced, thereby reducing the risk of collision between the corrugated pipe 102 and other pipelines or the expanded cavity type muffler 101. The fixed connection can be a common connection mode such as welding, clamping connection and the like.

In some embodiments, the pitch of the wavelength tube 102 is 10mm to 50 mm. In practice, the inventor continuously summarizes and finds that when the pitch of the wave tube 102 is smaller than 10mm, the pitch of the wave tube 102 is too small, so that if lubricating oil enters the wave tube 102, the lubricating oil in the wave tube 102 automatically flows out difficultly, and the effect is not good. When the pitch of the wave tube 102 is larger than 50mm, the pitch of the wave tube 102 is too large, which results in large occupied space, and due to the intermittent existence of air suction and exhaust of the compressor 502, the system pipeline has obvious pressure pulsation, which can excite the wave tube 102 to vibrate, and when the pitch of the wave tube 102 is larger than 50mm, the wave tube 102 is obvious and is easy to collide with other pipelines or the expansion cavity type muffler 101. In this embodiment, the screw pitch of the corrugated tube 102 is set to 10mm to 50mm, which not only facilitates the lubricating oil to automatically flow out of the corrugated tube 102, but also reduces the vibration amplitude of the corrugated tube 102, thereby reducing the risk of collision between the corrugated tube 102 and other pipelines or the expansion cavity type muffler 101.

In some embodiments, the length of the wavelength tube 102 is 100mm-600 mm. For the noise of the compressor 502 in the air conditioning system, the expansion type silencer is adopted, and the length of the expansion type silencer basically cannot exceed 250mm due to limited pipeline space. From experience, the sound of the compressor 502 between 100Hz and 300Hz of the air conditioner indoor unit is difficult to eliminate, and the sound of the compressor 502 between 100Hz and 300Hz of the indoor unit can be improved pertinently by designing the wave length pipe 102 to be 100mm to 600 mm.

Referring to fig. 4, in some embodiments, the sound attenuation assembly 100 includes an expanding chamber type muffler 101 and two wave pipes 102, where the two wave pipes 102 are a first branch pipe 401 and a second branch pipe 402, respectively, and noise propagating along a refrigerant flows through the first branch pipe 401 and the second branch pipe 402 in a refrigerant flowing direction, so that multiple sound attenuation is achieved and a noise reduction effect is improved.

In other embodiments, the lengths of the first branch pipe 401 and the second branch pipe 402 are different from each other, that is, the length of the first branch pipe 401 from the open end to the blind end is L1, the length of the second branch pipe 402 from the open end to the blind end is L2, and L1 is not equal to L2, so that the first branch pipe 401 and the second branch pipe 402 can respectively eliminate noises with different frequencies, and in the direction in which the refrigerant flows, as the noises propagated by the refrigerant flow through the first branch pipe 401 and the second branch pipe 402, the first branch pipe 401 and the second branch pipe 402 respectively eliminate the noises with different frequencies to a large extent, thereby expanding the noise reduction range. It is understood that in some embodiments, the sound attenuation assembly 100 may also include more than two wavelength tubes 102, i.e., the sound attenuation assembly 100 may also include three wavelength tubes 102, four wavelength tubes 102, or five wavelength tubes 102, etc., to further reduce the noise range.

According to the utility model relates to an air conditioner 501 of embodiment, including compressor 502, the pipeline of being connected with compressor 502 to and the amortization subassembly 100 of above embodiment, amortization subassembly 100 is connected on the pipeline. The sound wave emitted by the compressor 502 causes impedance mismatch due to the change of the cross section in the process of flowing through the expansion cavity type muffler 101, so that a part of the sound wave interferes with the original sound wave, the radiation of the sound energy flowing through the expansion cavity type muffler 101 is reduced, the purpose of muffling is realized, and the transmission of the indoor compressor 502 and the indoor sound quality are greatly improved. One end of the wave tube 102 is an open structure and is communicated with the expansion cavity type muffler 101, and the other end is a blind end, so that when sound waves are transmitted into the wave tube 102, the sound waves are reflected at the blind end due to abrupt change of media, and cancellation of the sound waves can be performed.

Referring to fig. 5, the piping includes a muffler 503, an exhaust pipe 504, and a low pressure pipe 505. in some embodiments, the muffler assembly 100 may be disposed on the muffler 503 to improve noise in the compressor 502 of the air conditioning refrigeration indoor unit.

In other embodiments, the muffler assembly 100 may also be disposed on the exhaust pipe 504 to improve noise in the air conditioning heating indoor compressor 502.

In other embodiments, the muffler assembly 100 may also be disposed on the low pressure pipe 505 to improve noise of the air conditioner cooling/heating indoor unit compressor 502.

It should be noted that the above-mentioned noise reduction assembly 100 can be applied to the air conditioner 501, and can also be applied to a refrigeration device such as a refrigerator.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (12)

1. Amortization subassembly is applied to refrigeration plant, its characterized in that includes:

an expanded cavity muffler;

the wave pipe is provided with an opening end and a blind end, the opening end is communicated with the expansion cavity type silencer, the wave pipe is spirally wound on the outer surface of the expansion cavity type silencer, and the blind end is higher than the opening end.

2. The acoustic silencer assembly of claim 1, further comprising a boot for preventing the expanded chamber muffler from colliding with the wavelength tube, the boot being disposed over the expanded chamber muffler and/or the wavelength tube.

3. The acoustic muffler assembly of claim 1 wherein the blind end of the wave tube is fixedly attached to the expanded cavity muffler.

4. The acoustic baffle assembly of claim 1 wherein the helix angle of the wave tube is greater than or equal to 15 °.

5. The acoustic baffle assembly of claim 1 wherein the pitch of the wave tube is 10mm to 50 mm.

6. The acoustic silencer assembly of claim 1, wherein the corrugated tube has a radius of curvature R2, the corrugated tube has an outer diameter d2, and the expanded chamber muffler has an outer diameter R1, and the following relationship is satisfied: R2-R1-d2/2 is not more than 0.5mm and not more than 5 mm.

7. The acoustic baffle assembly of claim 1 wherein the length of the wave tube is 100mm to 600 mm.

8. The acoustic baffle assembly of any of claims 1-7 wherein the wave length tube is at least two.

9. An air conditioner characterized by comprising the noise reducing assembly of any one of claims 1 to 8.

10. The air conditioner of claim 9, further comprising an air return pipe, wherein the muffler assembly is coupled to the air return pipe.

11. The air conditioner of claim 9, further comprising an exhaust pipe, wherein the muffler assembly is connected to the exhaust pipe.

12. The air conditioner of claim 9, further comprising a low pressure pipe, wherein the noise dampening assembly is coupled to the low pressure pipe.

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