WO2021012546A1 - 空调室内机 - Google Patents

空调室内机 Download PDF

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Publication number
WO2021012546A1
WO2021012546A1 PCT/CN2019/120709 CN2019120709W WO2021012546A1 WO 2021012546 A1 WO2021012546 A1 WO 2021012546A1 CN 2019120709 W CN2019120709 W CN 2019120709W WO 2021012546 A1 WO2021012546 A1 WO 2021012546A1
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WO
WIPO (PCT)
Prior art keywords
muffler
cavity
connecting pipe
heat exchanger
length
Prior art date
Application number
PCT/CN2019/120709
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English (en)
French (fr)
Inventor
赵紫生
饶涛
薛玮飞
赵帅
商远杰
陈勇
Original Assignee
广东美的制冷设备有限公司
美的集团股份有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 广东美的制冷设备有限公司, 美的集团股份有限公司 filed Critical 广东美的制冷设备有限公司
Priority to EP19938469.4A priority Critical patent/EP3992541A4/en
Publication of WO2021012546A1 publication Critical patent/WO2021012546A1/zh

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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • 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

Definitions

  • This application relates to the field of air conditioning technology, and in particular to an air conditioner indoor unit.
  • the muffler is generally installed on the outdoor unit of the air conditioner. However, due to the limited space of the compressor compartment, it is not conducive to the installation of a low-frequency muffler or more mufflers, and the noise reduction effect is poor. In addition, a separate external muffler is generally required in the four-way valve components.
  • the weight of the muffler causes the weight of the whole unit, and the outdoor unit is generally installed in an outdoor high-altitude environment. The outdoor unit is easy to fall during installation or transportation and cause pipeline deformation. , Broken pipe and other problems, which affect the use.
  • an object of the present application is to propose an air conditioner indoor unit, the housing of the air conditioner indoor unit is provided with a first muffler and a second muffler, which solves the problem of the compressor compartment which is not conducive to the silencer due to the limited space of the compressor compartment. Setting up the problem.
  • the indoor unit of the air conditioner includes: a housing; a heat exchanger, the heat exchanger is provided in the housing; a first muffler, the first muffler is located in the housing and connected to the The first end of the heat exchanger is connected; a second silencer, the second silencer is located in the shell and connected to the second end of the heat exchanger.
  • the first silencer and the second silencer are arranged in the housing, and the first silencer is connected to the first end of the heat exchanger, and the second silencer is connected to the heat exchanger.
  • the second end of the compressor is connected, not only can the second muffler be used for silence during cooling, and the first silencer can be used for silence during heating to reduce the radiation of the compressor’s sound energy to the heat exchanger, so as to achieve uniformity under different working conditions.
  • silencer at the front end of the heat exchanger greatly improves the noise transmitted from the compressor to the room, and also avoids the inability to install more silencers or long low frequency silencers due to the vertical space constraints of the compressor compartment At the same time, it can also reduce the weight of the outdoor unit to a certain extent and avoid the deformation and fracture of the outdoor unit pipeline caused by the outdoor unit falling.
  • the cross-sectional area of the middle part of the muffler is larger than the cross-sectional area of the two ends after the sudden change of the muffler section, which is also beneficial to improve the heat exchange efficiency and improve the cooling/heating performance.
  • the air conditioner indoor unit further includes a third muffler connected to an end of the first muffler far away from the heat exchanger.
  • the length of the second silencer is greater than the length of the third silencer, and the length of the third silencer is greater than the length of the first silencer.
  • the cross-sectional area of the second muffler cavity of the second muffler is smaller than the cross-sectional area of the third muffler cavity of the third muffler, and the cross-sectional area of the third muffler cavity Smaller than the cross-sectional area of the first muffler cavity of the first muffler.
  • the first muffler includes a first body, a first nozzle, and a second nozzle.
  • the first body is formed with a first muffler cavity, and the first nozzle is connected to the first nozzle respectively.
  • the second connecting pipe is connected to the other end of the first body and inserted into the first muffler cavity;
  • the second muffler includes a second body, The first communication pipe and the second communication pipe, the second body is formed with a second silencing cavity, and the first communication pipe is respectively connected with the second end of the heat exchanger and one end of the second body, so The second communication pipe is connected to the other end of the second body and inserted into the second muffler cavity; in the cooling mode, the refrigerant flows from the second end of the heat exchanger to the first end of the heat exchanger, In the heating mode, the refrigerant flows from the first end of the heat exchanger to the second end of the heat exchanger; wherein, the end of the second connecting pipe located in the first muffler cavity is closed, and the A plurality of first through holes are formed on the peripheral wall of the portion of the second connecting pipe located in the first silencing cavity; and/or, one end of the second connecting
  • the aperture range of the first through hole is 0.05-5 mm, and/or the aperture range of the second through hole is 0.05-5 mm;.
  • the distance between the first through hole farthest from the closed end of the second connector and the end of the first muffler cavity adjacent to the second connector is greater than 5mm; and/ Or, the distance between the second through hole farthest from the closed end of the second communication tube and the end of the second muffler cavity adjacent to the second communication tube is greater than 5 mm.
  • the plurality of first through holes are divided into multiple groups, each group includes at least two of the first through holes, and each group of the first through holes is along the axis of the second connector Arranged at intervals, a plurality of groups of the first through holes are arranged at intervals along the circumferential direction of the second connecting pipe, and two adjacent groups of the first through holes are staggered in the circumferential direction of the second connecting pipe; and/ Or, the plurality of second through holes are divided into multiple groups, each group includes at least two of the second through holes, and each group of the second through holes is arranged at intervals along the axial direction of the second connecting pipe, and The group of second through holes are arranged at intervals along the circumferential direction of the second communicating pipe, and the adjacent two groups of second through holes are staggered in the circumferential direction of the second communicating pipe.
  • the first muffler includes a first body, a first nozzle, and a second nozzle.
  • the first body is formed with a first muffler cavity, and the first nozzle is connected to the first nozzle respectively.
  • the second muffler includes a second body, a first communication tube and a second communication tube, the second body is formed with a second muffler cavity, the first communication tube and the heat exchanger The two ends are connected with one end of the second body and the first communication tube is inserted into the first silencing chamber, and the second communication tube is connected with the other end of the second body and is inserted into the second silencing chamber ;
  • the refrigerant flows from the second end of the heat exchanger to the first end of the heat exchanger
  • the heating mode the refrigerant flows from the first end of the heat exchanger to the heat exchanger The second end; wherein the length of the second connecting pipe located in the first silencing cavity is greater than the length of the first connecting pipe located in the first silencing
  • the first muffler includes a first body, a first nozzle, and a second nozzle.
  • the first body is formed with a first muffler cavity, and the first nozzle is connected to the first nozzle respectively.
  • the second muffler includes a second body, a first communication tube and a second communication tube, the second body is formed with a second muffler cavity, the first communication tube and the heat exchanger
  • the two ends are connected with one end of the second body and the first communication tube is inserted into the first silencing chamber, and the second communication tube is connected with the other end of the second body and is inserted into the second silencing chamber
  • the length of the second connecting pipe located in the first silencing cavity and the length of the first connecting pipe located in the first silencing cavity are not greater than a quarter of the length of the first muffler; and / Or, the length of the second communication pipe in the second silencer cavity and the length of the first communication pipe in the second silencer cavity are not greater than four minutes of the length of the second silencer one
  • the first silencer extends along the width direction of the cabinet, and the second silencer extends along the length direction of the cabinet.
  • Fig. 1 is a schematic diagram of an air conditioner indoor unit according to some embodiments of the present application.
  • Fig. 2 is a schematic diagram of another direction of the air conditioner indoor unit according to some embodiments of the present application.
  • Figure 3 is a schematic diagram of the connection of a heat exchanger, a first silencing tube, and a second silencing tube according to some embodiments of the present application;
  • Fig. 4 is a schematic diagram of another connection of the heat exchanger, the first silencing tube, and the second silencing tube according to some embodiments of the present application;
  • Figure 5 is a cross-sectional view of a first silencer according to some embodiments of the present application.
  • Fig. 6 is a cross-sectional view of a first muffler according to other embodiments of the present application.
  • Figure 7 is a cross-sectional view of a second silencer according to some embodiments of the present application.
  • Fig. 8 is a cross-sectional view of a second muffler according to other embodiments of the present application.
  • Figure 9 is a cross-sectional view of a third muffler according to some embodiments of the present application.
  • Fig. 10 is a cross-sectional view of a third muffler according to other embodiments of the present application.
  • Air conditioning indoor unit 100 Air conditioning indoor unit 100;
  • First muffler 3 first connection pipe 31; second connection pipe 32; first through hole 321; first body 33; first silencer cavity 331;
  • the air conditioner indoor unit 100 according to the embodiment of the present application will be described below with reference to the accompanying drawings.
  • the air conditioner indoor unit 100 can be assembled together with the air conditioner outdoor unit to form an air conditioner to adjust the indoor ambient temperature.
  • the air-conditioning indoor unit 100 is a wall-mounted air-conditioning indoor unit or a floor-standing air-conditioning indoor unit.
  • the air conditioner indoor unit 100 may include a casing 1, a heat exchanger 2, a first muffler 3, and a second muffler 4.
  • the heat exchanger 2, the first muffler 3 and the second muffler 4 can all be located in the housing 1, the first muffler 3 is connected to the first end of the heat exchanger 2, and the second muffler 4 is connected to the The second end of the heater 2 is connected.
  • the high-temperature and high-pressure refrigerant discharged from the compressor first flows to the outdoor heat exchanger 2, and the refrigerant flowing out of the outdoor heat exchanger 2 can pass through the silence of the second muffler 4 and then flow to the second part of the heat exchanger 2.
  • the heat exchanged refrigerant can flow through the first end of the heat exchanger 2 to the first muffler 3; in the heating mode, the high temperature and high pressure refrigerant discharged from the compressor flows to the second A muffler 3, after being silenced by the first muffler 3, further flows through the first end of the heat exchanger 2 to the heat exchanger 2, and exchanges heat in the heat exchanger 2, and the refrigerant after the heat exchange can pass through the heat exchanger
  • the second end of 2 flows to the second muffler 4.
  • the muffler principle of silencer is to form an abrupt cross-section (form an expansion chamber) at both ends and the middle of the pipeline, so that the sound waves emitted by the compressor undergo impedance mismatch during the process of passing through the muffler, causing a part of The sound waves interfere with the original sound waves to reduce noise.
  • the second muffler 4 is connected to the heat exchanger 2
  • the second end of the compressor is connected, not only can the second silencer 4 be used for silence during cooling, and the first silencer 3 can be used for silence during heating to reduce the radiation of the compressor’s sound energy to the heat exchanger 2 to achieve different working conditions.
  • the problem of the low-frequency muffler can also reduce the weight of the outdoor unit to a certain extent, avoiding the deformation and fracture of the outdoor unit pipeline caused by the outdoor unit falling.
  • the cross-sectional area of the middle part of the muffler is larger than the cross-sectional area of the two ends after the sudden change of the muffler section, which is also beneficial to improve the heat exchange efficiency and improve the cooling/heating performance.
  • the air conditioner indoor unit 100 of the embodiment of the present application by arranging the first muffler 3 and the second muffler 4 in the housing 1, and connecting the first muffler 3 with the first end of the heat exchanger 2, the first The second muffler 4 is connected to the second end of the heat exchanger 2, and it can not only use the second muffler 4 to muffle the sound during cooling, but also use the first muffler 3 for muffler during heating to reduce the sound energy of the compressor to heat transfer
  • the radiation of the compressor 2 can achieve the purpose of silencing at the front end of the heat exchanger 2 under different working conditions, which greatly improves the noise transmitted to the room by the compressor, and also avoids the space constraints and inability to install due to the vertical direction of the compressor compartment.
  • More silencers or the inability to install a longer low-frequency silencer can also reduce the weight of the outdoor unit to a certain extent, avoiding the deformation and fracture of the outdoor unit pipeline caused by the outdoor unit falling.
  • the cross-sectional area of the middle part of the muffler is larger than the cross-sectional area of the two ends after the sudden change of the muffler section, which is also beneficial to improve the heat exchange efficiency and improve the cooling/heating performance.
  • the first muffler 3 includes a first body 33, a first nozzle 31, and a second nozzle 32, and the first body 33 is formed with a first muffler cavity 331
  • the first connecting pipe 31 is respectively connected to one end of the first body 33 and the first end of the heat exchanger 2
  • the second connecting pipe 32 is connected to the other end of the first body 33
  • the second connecting pipe 32 is inserted into the first muffler cavity 331.
  • the position of the impedance mismatch interface in the first silencing cavity 331 can be changed, and the amount of sound attenuation near the passing frequency can be increased to meet the sound absorbing effect of a specific frequency range. Good noise reduction effect.
  • the first connecting pipe 31 is connected to the axial end of the first body 33 and the first end of the heat exchanger 2, and the second connecting pipe 32 is connected to the shaft of the first body 33. Connected to the other end, the second connecting pipe 32 is inserted into the first muffler cavity 331.
  • the axes of the first connecting pipe 31, the first body 33 and the second connecting pipe 32 are arranged in parallel.
  • the axes of the first connector 31, the first body 33, and the second connector 32 are collinear. Therefore, the structure is simple and the noise reduction effect is good.
  • one end of the second connecting pipe 32 located in the first silencing cavity 331 is open, thereby facilitating the circulation of the refrigerant between the first silencing cavity 331 and the second connecting pipe 32 and having a simple structure.
  • one end of the second connecting pipe 32 located in the first silencing cavity 331 is closed, and the peripheral wall of the portion of the second connecting pipe 32 located in the first silencing cavity 331 is formed.
  • the plurality of first through holes 321 therefore, for the transmitted sound of a specific frequency, the principle of the Helmholtz resonator can be used, so that the sound energy flowing through the second connecting pipe 32 is absorbed due to resonance, and the noise cancellation effect is improved.
  • the diameter of the first through hole 321 is 0.05-5 mm. It can be understood that the smaller the aperture, the better the sound attenuation, which helps to further improve the sound attenuation effect.
  • the aperture range of the first through hole 321 is 0.1mm, 0.3mm, 0.5mm, 1mm, 1.2mm, 1.6mm, 2mm, 2.5mm, 3mm, 3.4mm, 3.9mm, 4mm, 4.5mm and other parameters.
  • the number of the first through holes 321 is 2, 5, or 8. It can be understood that the smaller the number of holes, the lower the frequency that can be eliminated. Therefore, it is beneficial to eliminate low-frequency noise.
  • the distance between the first through hole 321 farthest from the closed end of the second nozzle 32 and the end of the first muffler cavity 331 adjacent to the second nozzle 32 is greater than 5 mm .
  • the distance between the first through hole 321 farthest from the closed end of the second connector 32 and the side wall of the first muffler cavity 331 through which the second connector 32 passes is L1, and L1 is greater than 5 mm. Therefore, it is beneficial to further improve the noise reduction effect, and is convenient for processing and manufacturing.
  • L1 is 5.5mm, 6mm, 6.4mm, 6.8mm, 7mm or 8mm.
  • the plurality of first through holes 321 are divided into multiple groups, and each group includes at least two first through holes 321, and each group of first through holes 321 is along the axis of the second connecting pipe 32.
  • the first through holes 321 are arranged at intervals along the circumferential direction of the second connecting pipe 32, and the adjacent two groups of first through holes 321 are staggered in the circumferential direction of the second connecting pipe 32. For example, as shown in FIG.
  • the 14 first through holes 321 are divided into four groups, of which two groups have 4 first through holes 321, and the other two groups have 3 first through holes 321, each group of first through holes 321
  • the second connecting pipe 32 is spaced apart in the axial direction
  • the four groups of first through holes 321 are spaced apart in the circumferential direction of the second connecting pipe 32
  • the adjacent two groups of first through holes 321 are arranged in the circumferential direction of the second connecting pipe 32. Stagger the settings. Therefore, it is beneficial to further improve the noise reduction effect.
  • the angle ⁇ between the line connecting the centers of the two adjacent first through holes 321 and the central axis of the second connecting pipe 32 The range is 30°-60°, that is, one of the two adjacent first through holes 321 is located in a group of first through holes 321, and the other of the two adjacent first through holes 321 Located in another group of first through holes 321, these two groups of first through holes 321 are adjacent, and the line between the centers of two adjacent first through holes 321 and the center axis of the second connecting pipe 32 are clamped
  • the range of angle ⁇ is 30-60°.
  • ⁇ is a parameter such as 35°, 40°, 45°, 48°, 50°, or 55°.
  • the distance between two adjacent first through holes 321 is greater than 5 mm. Therefore, it is beneficial to further improve the noise reduction effect, and is convenient for processing and manufacturing.
  • the distance between two adjacent first through holes 321 is 5.5 mm, 6 mm, 6.4 mm, 6.8 mm, 7 mm, or 8 mm.
  • the first connecting pipe 31 is inserted into the first silencing cavity 331, and the length of the second connecting pipe 32 in the first silencing cavity 331 is greater than the length of the first connecting pipe 31 in the first silencing cavity 331. Therefore, it is beneficial to improve the noise cancellation effect of the first muffler 3 in the heating mode.
  • the length of the second connecting pipe 32 located in the first silencing cavity 331 and the length of the first connecting pipe 31 located in the first silencing cavity 331 are not greater than one quarter of the length of the first muffler 3, that is, In other words, the length of the second connecting pipe 32 located in the first silencing cavity 331 is not greater than one-fourth of the length of the first muffler 3, and the length of the first connecting pipe 31 located in the first silencing cavity 331 is not greater than the first silencing cavity.
  • One quarter of the length of the device 3, the length of the first connecting pipe 31 located in the first silencing cavity 331 and the length of the second connecting pipe 32 located in the first silencing cavity 331 may be equal or unequal.
  • the length of the first muffler 3 is L2
  • the length of the first connecting pipe 31 in the first silencing cavity 331 is L3
  • the second connecting pipe 32 is located in the first silencing cavity 331
  • the length is L4, L3 ⁇ 1/4L2, L4 ⁇ 1/4L2. Therefore, it is beneficial to rationally optimize the structure of the first muffler 3 and improve the noise reduction effect.
  • the first connecting pipe 31 may not be inserted into the first silencing cavity 331, the first connecting pipe 31 is only connected to the interface of the first silencing cavity 331 to communicate with the first silencing cavity 331, and the second connecting pipe 32 is located in the first silencing cavity 331.
  • the length of a muffler cavity 331 is not greater than half of the length of the first muffler 3, that is, L4 ⁇ 1/2L2. Therefore, it is beneficial to improve the noise cancellation effect of the first muffler 3 in the heating mode.
  • the second muffler 4 includes a second body 43, a first communication pipe 41, and a second communication pipe 42, and the second body 43 is formed with a second muffler In the cavity 431, the first connecting pipe 41 is connected to one end of the second body 43 and the second end of the heat exchanger 2, the second connecting pipe 42 is connected to the other end of the second body 43, and the second connecting pipe 42 is inserted into the second Muffler cavity 431.
  • the position of the impedance mismatch interface in the second silencing cavity 431 can be changed, and the amount of sound attenuation near the passing frequency can be improved to meet the sound cancellation effect of a specific frequency range. , Good noise reduction effect.
  • the first communication pipe 41 is connected to the axial end of the second body 43 and the second end of the heat exchanger 2 respectively, and the second communication pipe 42 is connected to the second body 43.
  • the other end in the axial direction is connected, and the second communication tube 42 is inserted into the second muffler cavity 431.
  • the axes of the first communication pipe 41, the second body 43 and the second communication pipe 42 are arranged in parallel.
  • the axes of the first communication pipe 41, the second body 43, and the second communication pipe 42 are collinear. Therefore, the structure is simple and the noise reduction effect is good.
  • one end of the second communication pipe 42 located in the second silencing chamber 431 is open, so as to facilitate the circulation of refrigerant between the second silencing chamber 431 and the second communication pipe 42, and the structure is simple .
  • one end of the second communicating tube 42 located in the second silencing cavity 431 is closed, and the peripheral wall of the portion of the second communicating pipe 42 located in the second silencing chamber 431 is closed.
  • a plurality of second through holes 421 are formed. Therefore, for the transmitted sound of a specific frequency, the principle of Helmholtz resonator can be used, so that the sound energy flowing through the second communication pipe 42 is absorbed due to resonance, and the noise reduction effect is improved .
  • the diameter of the second through hole 421 ranges from 0.05 to 5 mm. It can be understood that the smaller the aperture, the better the sound attenuation, which helps to further improve the sound attenuation effect.
  • the aperture of the second through hole 421 is 0.1mm, 0.3mm, 0.5mm, 1mm, 1.2mm, 1.6mm, 2mm, 2.5mm, 3mm, 3.4mm, 3.9mm, 4mm, 4.5mm and other parameters.
  • the number of the second through holes 421 is 2, 5, or 8. It can be understood that the smaller the number of holes, the lower the frequency that can be eliminated. Therefore, it is beneficial to eliminate low-frequency noise.
  • the distance between the second through hole 421 farthest from the closed end of the second communicating tube 42 and the end of the second muffler cavity 431 adjacent to the second communicating tube 42 More than 5mm. That is, the distance between the second through hole 421 farthest from the closed end of the second communication tube 42 and the side wall of the second muffler cavity 431 through which the second communication tube 42 passes is L5, and L5 is greater than 5 mm. Therefore, it is beneficial to further improve the noise reduction effect, and is convenient for processing and manufacturing.
  • L5 is 5.5mm, 6mm, 6.4mm, 6.8mm, 7mm or 8mm.
  • the plurality of second through holes 421 are divided into multiple groups, and each group includes at least two second through holes 421, and each group of second through holes 421 extends along the second connecting pipe 42.
  • the second through holes 421 are arranged at intervals in the axial direction.
  • a plurality of sets of second through holes 421 are arranged at intervals along the circumferential direction of the second communication pipe 42.
  • the adjacent two sets of second through holes 421 are staggered in the circumferential direction of the second communication pipe 42. For example, as shown in FIG.
  • the 14 second through holes 421 are divided into four groups, of which two groups have 4 second through holes 421, and the other two groups have 3 second through holes 421, each group of second through holes 421
  • the second communication tube 42 is spaced apart in the axial direction.
  • the four sets of second through holes 421 are spaced apart in the circumferential direction of the second communication tube 42. Stagger settings in the circumferential direction. Therefore, it is beneficial to further improve the noise reduction effect.
  • the angle between the line connecting the centers of the two adjacent second through holes 421 and the central axis of the second communicating tube 42 The range of ⁇ is 30°-60°, that is, one of the two adjacent second through holes 421 is located in a group of second through holes 421, and the other of the two adjacent second through holes 421 One is located in the other set of second through holes 421, these two sets of second through holes 421 are adjacent, and the line between the centers of the two adjacent second through holes 421 and the central axis of the second communicating tube 42
  • the range of the included angle ⁇ is 30-60°.
  • ⁇ is a parameter such as 35°, 40°, 45°, 48°, 50°, or 55°.
  • the distance between two adjacent second through holes 421 is greater than 5 mm. Therefore, it is beneficial to further improve the noise reduction effect, and is convenient for processing and manufacturing.
  • the distance between two adjacent second through holes 421 is 5.5 mm, 6 mm, 6.4 mm, 6.8 mm, 7 mm or 8 mm.
  • the first connecting pipe 41 is inserted into the second silencing cavity 431, and the length of the second connecting pipe 42 in the second silencing cavity 431 is greater than the length of the first connecting pipe 41 in the second silencing cavity 431 . Therefore, it is beneficial to improve the noise cancellation effect of the second muffler 4 in the cooling mode.
  • the length of the second communication pipe 42 located in the second silencing chamber 431 and the length of the first communicating pipe 41 located in the second silencing chamber 431 are not greater than one quarter of the length of the second muffler 4 That is to say, the length of the second communication pipe 42 located in the second muffler cavity 431 is not greater than one-fourth of the length of the second muffler 4, and the length of the first communication pipe 41 located in the second muffler cavity 431 Not more than a quarter of the length of the second muffler 4, the length of the first communication pipe 41 located in the second silencing chamber 431 and the length of the second communication pipe 42 located in the second silencing chamber 431 may be equal or not Not waiting. Specifically, referring to FIG.
  • the length of the second muffler 4 is L6
  • the length of the portion of the first communication pipe 41 located in the second silencing chamber 431 is L7
  • the length of the second communication pipe 42 located in the second muffler The length of the part in the cavity 431 is L8, L7 ⁇ 1/4L6, L8 ⁇ 1/4L6. Therefore, it is beneficial to rationally optimize the structure of the second muffler 4 and improve the noise reduction effect.
  • first connecting pipe 41 may not be inserted into the second silencing cavity 431, and the first connecting pipe 41 is only connected to the interface of the second silencing cavity 431 to communicate with the second silencing cavity 431.
  • the length of 42 located in the second muffler cavity 431 is not greater than half of the length of the second muffler 4, that is, L8 ⁇ 1/2L6.
  • the air conditioner indoor unit 100 further includes a third muffler 5 connected to the end of the first muffler 3 far away from the heat exchanger 2.
  • the high-temperature and high-pressure refrigerant discharged from the compressor flows to the third muffler 5, then flows to the first muffler 3, is silenced by the first muffler 3, and then passes through the first muffler of the heat exchanger 2.
  • the end flows to the heat exchanger 2 and exchanges heat in the heat exchanger 2.
  • the refrigerant after heat exchange can flow to the second muffler 4 through the second end of the heat exchanger 2.
  • the purpose of two-stage noise reduction at the front end of the heat exchanger 2 can be achieved, thereby further reducing the sound energy radiated by the compressor to the heat exchanger 2 during heating, and improving the noise reduction effect.
  • the air conditioner indoor unit 100 may further include a fourth muffler, and the fourth muffler may be connected to the end of the second muffler 4 far away from the heat exchanger 2.
  • the high temperature and high pressure refrigerant discharged from the compressor first flows to the outdoor heat exchanger 2, and the refrigerant flowing out of the outdoor heat exchanger 2 can pass through the fourth muffler and the second muffler 4 after being silenced It flows to the second end of the heat exchanger 2 and exchanges heat in the heat exchanger 2, and the refrigerant after heat exchange can flow to the first silencer 3 through the first end of the heat exchanger 2.
  • the purpose of two-stage noise reduction at the front end of the heat exchanger 2 can be achieved, thereby further reducing the sound energy radiated by the compressor to the heat exchanger 2 during cooling, and improving the noise reduction effect.
  • the cross-sectional area of the second silencing cavity 431 of the second muffler 4 is smaller than the cross-sectional area of the third silencing cavity 531 of the third muffler 5, and the cross-sectional area of the third silencing cavity 531 is smaller than The cross-sectional area of the first muffler cavity 331 of the first muffler 3.
  • the length of the second silencer 4 is greater than the length of the third silencer 5, and the length of the third silencer 5 is greater than the length of the first silencer 3. It is understandable that the longer the length of the muffler, the better the muffling effect for low-frequency transmitted sound. Since the noise of certain frequencies of the compressor is still very large after passing through the muffler, the length of the first muffler 3 to the third muffler 5 is different, so that the transmitted sound of different frequencies can be muffled, which is beneficial to improve the muffler. effect.
  • the specific specifications of the muffler can be selected according to the cooling/heating working conditions and the audio frequency of the compressor.
  • the expansion ratios of the first muffler 3, the second muffler 4, and the third muffler 5 are different. Since the noise of certain frequencies of the compressor is still very large after passing through the muffler, mufflers with different expansion ratios are used to achieve multi-stage muffling and improve the muffling effect.
  • the expansion ratios of the first silencer 3, the second silencer 4, and the third silencer 5 are values greater than 1 and less than 10, respectively. Therefore, it is beneficial to improve the noise reduction effect.
  • the third muffler 5 includes a third body 53, a first connecting pipe 51 and a second connecting pipe 52, and the third body 53 is formed with a third muffler
  • the first connecting pipe 51 is connected to one end of the third body 53 and the second connecting pipe 32 respectively
  • the second connecting pipe 52 is connected to the other end of the third body 53
  • the second connecting pipe 52 is inserted into the third silencer cavity 531. Therefore, by inserting the second connecting pipe 52 into the third silencing cavity 531, the position of the impedance mismatch interface in the third silencing cavity 531 can be changed, and the amount of noise at the pass frequency can be increased to meet the noise cancellation effect of a specific frequency range. , Good noise reduction effect.
  • the first connecting tube 51 is connected to one end of the third body 53 in the axial direction and the second connecting tube 32, and the second connecting tube 52 is connected to the third body 53 in the axial direction.
  • One end is connected, and the second connecting pipe 52 is inserted into the third muffler cavity 531.
  • the axes of the first connecting pipe 51, the second connecting pipe 52 and the third body 53 are arranged in parallel.
  • the axes of the first connecting pipe 51, the second connecting pipe 52, and the third body 53 are collinear. Therefore, the structure is simple and the noise reduction effect is good.
  • one end of the second connecting pipe 52 located in the third silencing cavity 531 is open, thereby facilitating the circulation of the refrigerant between the third silencing cavity 531 and the second connecting pipe 52, and the structure is simple .
  • one end of the second connecting pipe 52 located in the third silencing cavity 531 is closed, and the peripheral wall of the portion of the second connecting pipe 52 located in the third silencing cavity 531 is closed.
  • a plurality of third through holes 521 are formed. Therefore, for the transmitted sound of a specific frequency, the principle of Helmholtz resonator can be used, so that the sound energy flowing through the second connecting pipe 52 is absorbed due to resonance, thereby improving the noise cancellation effect .
  • the aperture of the third through hole 521 ranges from 0.05 to 5 mm. It can be understood that the smaller the aperture, the better the sound attenuation, which helps to further improve the sound attenuation effect.
  • the aperture of the third through hole 521 is 0.1mm, 0.3mm, 0.5mm, 1mm, 1.2mm, 1.6mm, 2mm, 2.5mm, 3mm, 3.4mm, 3.9mm, 4mm or 4.5mm and other parameters.
  • the number of the third through holes 521 is 2, 5, or 8. It can be understood that the smaller the number of holes, the lower the frequency that can be eliminated. Therefore, it is beneficial to eliminate low-frequency noise.
  • the distance between the third through hole 521 farthest from the closed end of the second connecting pipe 52 and the end of the third muffler cavity 531 adjacent to the second connecting pipe 52 More than 5mm. That is, the distance between the third through hole 521 farthest from the closed end of the second connecting pipe 52 and the side wall of the third muffler cavity 531 through which the second connecting pipe 52 passes is L9, and L9 is greater than 5 mm. Therefore, it is beneficial to further improve the noise reduction effect, and is convenient for processing and manufacturing.
  • L9 is 5.5mm, 6mm, 6.4mm, 6.8mm, 7mm or 8mm.
  • the plurality of third through holes 521 are divided into multiple groups, and each group includes at least two third through holes 521, and each group of third through holes 521 extends along the second connecting pipe 52.
  • the third through holes 521 are arranged at intervals in the axial direction, and a plurality of groups of third through holes 521 are arranged at intervals along the circumferential direction of the second connecting pipe 52, and two adjacent groups of third through holes 521 are staggered in the circumferential direction of the second connecting pipe 52. For example, as shown in FIG.
  • the 14 third through holes 521 are divided into four groups, of which two groups have 4 third through holes 521, and the other two groups have 3 third through holes 521, each group of third through holes 521
  • the second connecting pipe 52 is spaced apart in the axial direction, four sets of third through holes 521 are spaced apart in the circumferential direction of the second connecting pipe 52, and two adjacent sets of third through holes 521 are arranged at intervals of the second connecting pipe 52. Stagger settings in the circumferential direction. Therefore, it is beneficial to further improve the noise reduction effect.
  • the angle between the line connecting the centers of the two adjacent third through holes 521 and the central axis of the second connecting pipe 52 The range of ⁇ is 30°-60°, that is, one of the two adjacent third through holes 521 is located in a group of third through holes 521, and the other of the two adjacent third through holes 521 One is located in the other group of third through holes 521, the two groups of third through holes 521 are adjacent, and the line between the centers of the two adjacent third through holes 521 and the central axis of the second connecting pipe 52
  • the range of the included angle ⁇ is 30-60°.
  • ⁇ is a parameter such as 35°, 40°, 45°, 48°, 50°, or 55°.
  • the distance between two adjacent third through holes 521 is greater than 5 mm. Therefore, it is beneficial to further improve the noise reduction effect, and is convenient for processing and manufacturing.
  • the distance between two adjacent third through holes 521 is 5.5 mm, 6 mm, 6.4 mm, 6.8 mm, 7 mm, or 8 mm.
  • the first connecting pipe 51 is inserted into the third silencing cavity 531, and the length of the second connecting pipe 52 located in the third silencing cavity 531 is greater than that of the first connecting pipe 51 located in the third silencing cavity 531. length. Therefore, it is beneficial to improve the noise cancellation effect of the third muffler 5 in the heating mode.
  • the length of the second connecting pipe 52 in the third silencing cavity 531 and the length of the first connecting pipe 51 in the third silencing cavity 531 are not greater than one-fourth of the length of the third muffler 5 That is, the length of the second connecting pipe 52 in the third muffler cavity 531 is not greater than one-fourth of the length of the third muffler 5, and the length of the first connecting pipe 51 in the third muffler cavity 531 Not more than a quarter of the length of the third muffler 5, the length of the first connecting pipe 51 located in the third muffler cavity 531 and the length of the second connecting pipe 52 located in the third muffler cavity 531 may be the same or not Not waiting. Specifically, referring to FIG.
  • the length of the third muffler 5 is L10
  • the length of the part of the first connecting pipe 51 located in the third muffler cavity 531 is L11
  • the length of the second connecting pipe 52 located in the third muffler The length of the part in the cavity 531 is L12, L11 ⁇ 1/4L10, L12 ⁇ 1/4L10. Therefore, it is beneficial to rationally optimize the structure of the third muffler 5 and improve the noise reduction effect.
  • first connecting pipe 51 may not be inserted into the third silencing cavity 531, the first connecting pipe 51 is only connected to the interface of the third silencing cavity 531 to communicate with the third silencing cavity 531, and the second connecting pipe
  • the length of 52 located in the third muffler cavity 531 is not greater than half of the length of the second muffler 4, that is, L12 ⁇ 1/2L10.
  • the first muffler 3 extends along the width direction of the casing (for example, the vertical direction in FIG. 1), and the second muffler 4 extends along the length direction of the casing (for example, the left and right directions in FIG. 1).
  • the air-conditioning indoor unit 100 is a wall-mounted air-conditioning indoor unit, and the first muffler 3, the second muffler 4, and the third muffler 5 are all located on the rear side of the heat exchanger 2 in a direction perpendicular to the front and rear direction.
  • the projections of the first muffler 3, the second muffler 4, and the third muffler 5 are all located in the projection of the heat exchanger.
  • the length direction of the casing is left and right, and the width direction of the casing is up and down. direction.
  • the air-conditioning indoor unit 100 is a floor-standing air-conditioning indoor unit 100, and the first muffler 3, the second muffler 4, and the third muffler 5 are all located on the rear side of the heat exchanger 2, in a plane perpendicular to the front-to-rear direction At least part of the projections of the first muffler 3, the second muffler 4, and the third muffler 5 are all located within the projection of the heat exchanger, the length direction of the casing is the vertical direction, and the width direction of the casing is the left and right direction. Therefore, under the premise of not increasing the volume of the cabinet, it is advantageous to make full use of the specific structure of the cabinet to arrange the first and second silencers 4.
  • the air conditioner indoor unit 100 further includes a first refrigerant pipe 6 and a second refrigerant pipe 7, the first refrigerant pipe 6 and the first end of the heat exchanger 2 Connected, the second refrigerant pipe 7 is connected to the second end of the heat exchanger 2, the first muffler 3 and the third muffler 5 are connected in series to the first refrigerant pipe 6, and the second muffler 4 is connected in series to the second refrigerant pipe 7 on. Therefore, the structure is simple, and the connection between the air conditioner indoor unit 100 and the air conditioner outdoor unit is convenient.
  • the end of the first refrigerant pipe 6 away from the heat exchanger 2 is connected with a low-pressure pipe connecting bolt 61, and the end of the second refrigerant pipe 7 away from the heat exchanger 2 is connected with a high-pressure pipe connecting bolt 71.
  • a low-pressure pipe connecting bolt 61 the end of the first refrigerant pipe 6 away from the heat exchanger 2 is connected with a low-pressure pipe connecting bolt 61, and the end of the second refrigerant pipe 7 away from the heat exchanger 2 is connected with a high-pressure pipe connecting bolt 71.
  • first feature of the second feature may include the first and second features in direct contact, or may include the first and second features not in direct contact but through them Another feature contact between.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher than The second feature.

Abstract

一种空调室内机(100)，包括：壳体(1)；换热器(2)，所述换热器(2)设在所述壳体(1)内；第一消音器(3)，所述第一消音器(3)位于所述壳体(1)内且与所述换热器(2)的第一端相连；第二消音器(4)，所述第二消音器(4)位于所述壳体(1)内且与所述换热器(2)的第二端相连。

Description

空调室内机
本申请基于申请号为201921166353.3，申请日为2019年7月23日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及空气调节技术领域，尤其是涉及一种空调室内机。
背景技术
消音器一般设在空调室外机上，然而由于压缩机仓的空间有限，不利于低频消音器或更多消音器的设置，消声效果差。另外，四通阀部件中一般需要单独外接消音器，消音器的自重导致整机重量重，而且室外机一般是安装在室外的高空环境中，安装或运输过程中室外机容易跌落导致管路变形、断管等问题，影响使用。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此，本申请的一个目的在于提出一种空调室内机，所述空调室内机的壳体内设有第一消音器和第二消音器，解决了因压缩机仓的空间有限不利于消音器的设置的问题。
根据本申请实施例的空调室内机，包括：壳体；换热器，所述换热器设在所述壳体内；第一消音器，所述第一消音器位于所述壳体内且与所述换热器的第一端相连；第二消音器，所述第二消音器位于所述壳体内且与所述换热器的第二端相连。
根据本申请实施例的空调室内机，通过将第一消音器和第二消音器设在壳体内，并使得第一消音器与换热器的第一端相连，第二消音器与换热器的第二端相连，不但可以在制冷时利用第二消音器进行消音、在制热时利用第一消音器进行消音以降低压缩机声能向换热器辐射，达到在不同的工况下均可在换热器前端消声的目的，大大改善压缩机传递至室内的噪音，而且还避免了因压缩机仓竖置方向空间约束、无法设置更多消音器或无法设置较长的低频消音器的问题，同时还可以在一定程度上减轻室外机的重量，避免室外机跌落导致的外机管路变形、断裂等问题。此外，还利于取消室外机四通阀消音器，使得四通阀部件固频提高，从而四通阀的固频不易与压缩机固频发生共振，降低了管路设计的难度。另外，冷媒流经第一消音器和第二消音器时，由于消音器截面突变后中部截面积较两端截面积大，还利于提高换热效率，提升制冷/制热性能。
根据本申请的一些实施例，空调室内机进一步包括第三消音器，所述第三消音器连接至所述第一消音器的远离所述换热器的一端。
根据本申请的一些实施例，所述第二消音器的长度大于所述第三消音器的长度，所述第三消音器的长度大于所述第一消音器的长度。
根据本申请的一些实施例，所述第二消音器的第二消音腔的横截面积小于所述第三 消音器的第三消音腔的横截面积，所述第三消音腔的横截面积小于所述第一消音器的第一消音腔的横截面积。
根据本申请的一些实施例，所述第一消音器包括第一本体、第一接管和第二接管，所述第一本体形成有第一消音腔，所述第一接管分别与所述第一本体的一端和所述换热器的第一端相连，所述第二接管与所述第一本体的另一端相连且插入所述第一消音腔；所述第二消音器包括第二本体、第一连通管和第二连通管，所述第二本体形成有第二消音腔，所述第一连通管分别与所述换热器的第二端和所述第二本体的一端相连，所述第二连通管与所述第二本体的另一端相连且插入所述第二消音腔；在制冷模式，冷媒从所述换热器的第二端流向所述换热器的第一端，在制热模式，冷媒从所述换热器的第一端流向所述换热器的第二端；其中，所述第二接管的位于所述第一消音腔内的一端封闭，且所述第二接管的位于所述第一消音腔内的部分的周壁上形成有多个第一通孔；和/或，所述第二连通管的位于所述第二消音腔内的一端封闭，且所述第二连通管的位于所述第二消音腔内的部分的周壁上形成有多个第二通孔。
根据本申请的一些实施例，所述第一通孔的孔径范围为0.05-5mm，和/或所述第二通孔的孔径范围为0.05-5mm；。
根据本申请的一些实施例，最远离所述第二接管的封闭端的所述第一通孔与所述第一消音腔的邻近所述第二接管的端部之间的距离大于5mm；和/或，最远离所述第二连通管的封闭端的所述第二通孔与所述第二消音腔的邻近所述第二连通管的端部之间的距离大于5mm。
根据本申请的一些实施例，多个所述第一通孔分为多组，每组包括至少两个所述第一通孔，每组所述第一通孔沿所述第二接管的轴向间隔设置，多组所述第一通孔沿所述第二接管的周向间隔设置，相邻两组所述第一通孔在所述第二接管的周向方向上错开设置；和/或，多个所述第二通孔分为多组，每组包括至少两个所述第二通孔，每组所述第二通孔沿所述第二连通管的轴向间隔设置，多组所述第二通孔沿所述第二连通管的周向间隔设置，相邻两组所述第二通孔在所述第二连通管的周向方向上错开设置。
根据本申请的一些实施例，所述第一消音器包括第一本体、第一接管和第二接管，所述第一本体形成有第一消音腔，所述第一接管分别与所述第一本体的一端和所述换热器的第一端相连且所述第一接管插入所述第一消音腔，所述第二接管与所述第一本体的另一端相连且插入所述第一消音腔；所述第二消音器包括第二本体、第一连通管和第二连通管，所述第二本体形成有第二消音腔，所述第一连通管分别与所述换热器的第二端和所述第二本体的一端相连且所述第一连通管插入所述第一消音腔，所述第二连通管与所述第二本体的另一端相连且插入所述第二消音腔；在制冷模式，冷媒从所述换热器的第二端流向所述换热器的第一端，在制热模式，冷媒从所述换热器的第一端流向所述换热器的第二端；其中，所述第二接管位于所述第一消音腔内的长度大于所述第一接管位于所述第一消音腔内的长度；和/或，所述第二连通管位于所述第二消音腔内长度大于所述第二连通管的位于所述第二消音腔内的长度。
根据本申请的一些实施例，所述第一消音器包括第一本体、第一接管和第二接管，所述第一本体形成有第一消音腔，所述第一接管分别与所述第一本体的一端和所述换热器的第一端相连且所述第一接管插入所述第一消音腔，所述第二接管与所述第一本体的另一端相连且插入所述第一消音腔；所述第二消音器包括第二本体、第一连通管和第二连通管，所述第二本体形成有第二消音腔，所述第一连通管分别与所述换热器的第二端和所述第二本体的一端相连且所述第一连通管插入所述第一消音腔，所述第二连通管与所述第二本体的另一端相连且插入所述第二消音腔；所述第二接管位于所述第一消音腔内的长度和所述第一接管位于所述第一消音腔内的长度均不大于所述第一消音器的长度的四分之一；和/或，所述第二连通管位于所述第二消音腔内的长度和所述第一连通管位于所述第二消音腔内的长度均不大于所述第二消音器的长度的四分之一。
根据本申请的一些实施例，所述第一消音器沿所述机壳的宽度方向延伸，所述第二消音器沿所述机壳的长度方向延伸。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本申请一些实施例的空调室内机的示意图；
图2是根据本申请一些实施例的空调室内机的另一方向的示意图；
图3是根据本申请一些实施例的换热器、第一消音管和第二消音管的连接示意图；
图4是根据本申请一些实施例的换热器、第一消音管和第二消音管的另一方向的连接示意图；
图5是根据本申请一些实施例的第一消音器的剖视图；
图6是根据本申请另一些实施例的第一消音器的剖视图；
图7是根据本申请一些实施例的第二消音器的剖视图；
图8是根据本申请另一些实施例的第二消音器的剖视图；
图9是根据本申请一些实施例的第三消音器的剖视图；
图10是根据本申请另一些实施例的第三消音器的剖视图。
附图标记：
空调室内机100；
壳体1；
换热器2；
第一消音器3；第一接管31；第二接管32；第一通孔321；第一本体33；第一消音腔331；
第二消音器4；第一连通管41；第二连通管42；第二通孔421；第二本体43；第二 消音腔431；
第三消音器5；第一连接管51；第二连接管52；第三通孔521；第三本体53；第三消音腔531；
第一冷媒管6；低压管连接螺栓61；
第二冷媒管7；高压管连接螺栓71。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
下面参考附图描述根据本申请实施例的空调室内机100，空调室内机100可以与空调室外机一起组装成空调器，从而用于调节室内环境温度。可选地，空调室内机100为壁挂式空调室内机或落地式空调室内机。
如图1-图2所示，根据本申请实施例的空调室内机100，可以包括壳体1、换热器2、第一消音器3和第二消音器4。
具体地，换热器2、第一消音器3和第二消音器4均可位于壳体1内，第一消音器3与换热器2的第一端相连，第二消音器4与换热器2的第二端相连。
具体而言，在制冷模式，压缩机排出的高温高压的冷媒先流向室外换热器2，从室外换热器2流出的冷媒可经过第二消音器4的消音后流向换热器2的第二端，并在换热器2内换热，换热后的冷媒可经过换热器2的第一端流向第一消音器3；在制热模式，压缩机排出的高温高压的冷媒流向第一消音器3，经第一消音器3的消音后进一步经过换热器2的第一端流向换热器2，并在换热器2内换热，换热后的冷媒可经过换热器2的第二端流向第二消音器4。
本领域技术人员公知的是，消音器的消音原理是通过管路两端与中间形成截面突变(形成扩张室)，使得压缩机发出的声波在流经消音器的过程发生阻抗失配，使得一部分声波与原声波产生干涉，进而降噪。
因此，通过将第一消音器3和第二消音器4设在壳体1内，并使得第一消音器3与换热器2的第一端相连，第二消音器4与换热器2的第二端相连，不但可以在制冷时利用第二消音器4进行消音、在制热时利用第一消音器3进行消音以降低压缩机声能向换热器2辐射，达到在不同的工况下均可在换热器2前端消声的目的，大大改善压缩机传递至室内的噪音，而且还避免了因压缩机仓竖置方向空间约束、无法设置更多消音器或无法设置较长的低频消音器的问题，同时还可以在一定程度上减轻室外机的重量，避免室外机跌落导致的外机管路变形、断裂等问题。此外，还利于取消室外机四通阀消音器，使得四通阀部件固频提高，从而四通阀的固频不易与压缩机固频发生共振，降低了管路设计的难度。另外，冷媒流经第一消音器和第二消音器时，由于消音器截面突变后中部截面积较两端截面积大，还利于提高换热效率，提升制冷/制热性能。
根据本申请实施例的空调室内机100，通过将第一消音器3和第二消音器4设在壳体1内，并使得第一消音器3与换热器2的第一端相连，第二消音器4与换热器2的第二端相连，不但可以在制冷时利用第二消音器4进行消音、在制热时利用第一消音器3进行消音以降低压缩机声能向换热器2辐射，达到在不同的工况下均可在换热器2前端消声的目的，大大改善压缩机传递至室内的噪音，而且还避免了因压缩机仓竖置方向空间约束、无法设置更多消音器或无法设置较长的低频消音器的问题，同时还可以在一定程度上减轻室外机的重量，避免室外机跌落导致的外机管路变形、断裂等问题。此外，还利于取消室外机四通阀消音器，使得四通阀部件固频提高，从而四通阀的固频不易与压缩机固频发生共振，降低了管路设计的难度。另外，冷媒流经第一消音器和第二消音器时，由于消音器截面突变后中部截面积较两端截面积大，还利于提高换热效率，提升制冷/制热性能。
参照图5和图6所示，在本申请的一些实施例中，第一消音器3包括第一本体33、第一接管31和第二接管32，第一本体33形成有第一消音腔331，第一接管31分别与第一本体33的一端和换热器2的第一端相连，第二接管32与第一本体33的另一端相连，第二接管32插入第一消音腔331。由此，通过使得第二接管32插入第一消音腔331，从而可以改变第一消音腔331内阻抗失配界面的位置，提高通过频率附近的消声量，以满足特定频率段的消声效果，消声效果好。
具体而言，例如如图5-图6所示，第一接管31分别与第一本体33的轴向一端和换热器2的第一端相连，第二接管32与第一本体33的轴向另一端相连，第二接管32插入第一消音腔331。可选地，第一接管31、第一本体33和第二接管32的轴线平行设置。例如，第一接管31、第一本体33和第二接管32的轴线共线。由此，结构简单，消声效果好。
可选地，如图5所示，第二接管32的位于第一消音腔331内的一端敞开，从而便于冷媒在第一消音腔331和第二接管32之间的流通，而且结构简单。
当然，本申请不限于此，如图6所示，第二接管32的位于第一消音腔331内的一端封闭，且第二接管32的位于第一消音腔331内的部分的周壁上形成有多个第一通孔321，由此，针对特定频率的传递音，可利用亥姆霍兹共振器原理，使得流经第二接管32的声能量由于共振而被吸收，提高消音效果。
在本申请的一些实施例中，第一通孔321的孔径为0.05-5mm。可以理解的是，孔径越小，消声越好，由此，有利于进一步地提高消声效果。
例如，第一通孔321的孔径范围为0.1mm、0.3mm、0.5mm、1mm、1.2mm、1.6mm、2mm、2.5mm、3mm、3.4mm、3.9mm、4mm或4.5mm等参数。
可选地，第一通孔321的数量为2个、5个或8个。可以理解的是，孔数越少可消除的频率越低。由此，有利于消除低频的噪音。
在本申请的一些实施例中，如图6所示，最远离第二接管32的封闭端的第一通孔321与第一消音腔331的邻近第二接管32的端部之间的距离大于5mm。也就是说，最 远离第二接管32的封闭端的第一通孔321与第一消音腔331的供第二接管32穿过的侧壁之间的距离为L1，L1大于5mm。由此，有利于进一步提高消声效果，而且便于加工制造。
例如，L1为5.5mm，6mm，6.4mm，6.8mm，7mm或8mm。
在本申请的一些可选的实施例中，多个第一通孔321分为多组，每组包括至少两个第一通孔321，每组第一通孔321沿第二接管32的轴向间隔设置，多组第一通孔321沿第二接管32的周向间隔设置，相邻两组第一通孔321在第二接管32的周向方向上错开设置。例如，如图6所示，14个第一通孔321分成四组，其中两组有4个第一通孔321，另外两组有3个第一通孔321，每组第一通孔321在第二接管32的轴向间隔开设置，四组第一通孔321在第二接管32的周向间隔开设置，相邻的两组第一通孔321在第二接管32的周向方向上错开设置。由此，有利于进一步地提高消音效果。
可选地，参照图6所示，相邻两组第一通孔321中，相邻的两个第一通孔321的中心的连线与第二接管32的中心轴线之间的夹角α的范围为30°-60°，也就是说，相邻的两个第一通孔321中的其中一个位于一组第一通孔321，相邻的两个第一通孔321中的另一个位于另一组第一通孔321，这两组第一通孔321是相邻的，相邻的两个第一通孔321的中心的连线与第二接管32的中心轴线之间的夹角α的范围为30-60°。例如，α为35°、40°、45°、48°、50°或55°等参数。
可选地，每组第一通孔321中，相邻的两个第一通孔321之间的距离大于5mm。由此，有利于进一步提高消声效果，而且便于加工制造。例如，相邻的两个第一通孔321之间的距离为5.5mm，6mm，6.4mm，6.8mm，7mm或8mm。
在本申请的一些实施例中，第一接管31插入第一消音腔331，第二接管32的位于第一消音腔331内的长度大于第一接管31位于第一消音腔331内的长度。由此，有利于提高制热模式下，第一消音器3的消音效果。
可选地，第二接管32位于第一消音腔331内的长度和第一接管31的位于第一消音腔331内的长度均不大于第一消音器3的长度的四分之一，也就是说，第二接管32的位于第一消音腔331内的长度不大于第一消音器3的长度的四分之一，第一接管31的位于第一消音腔331内的长度不大于第一消音器3的长度的四分之一，第一接管31的位于第一消音腔331内的长度与第二接管32的位于第一消音腔331内的长度可以相等也可以不等。具体而言，参照图5和图6所示，第一消音器3的长度为L2，第一接管31位于第一消音腔331内的长度为L3，第二接管32位于第一消音腔331内的长度为L4，L3≤1/4L2，L4≤1/4L2。由此，有利于合理优化第一消音器3的结构，提高消音效果。
当然，可以理解的是，第一接管31还可以不插入第一消音腔331，第一接管31仅与第一消音腔331的接口相连以与第一消音腔331连通，第二接管32位于第一消音腔331内的长度不大于第一消音器3的长度的二分之一，即，L4≤1/2L2。由此，有利于提高制热模式下，第一消音器3的消音效果。
参照图7和图8所示，在本申请的一些实施例中，第二消音器4包括第二本体43、第一连通管41和第二连通管42，第二本体43形成有第二消音腔431，第一连通管41分别与第二本体43的一端和换热器2的第二端相连，第二连通管42与第二本体43的另一端相连，第二连通管42插入第二消音腔431。由此，通过使得第二连通管42插入第二消音腔431，从而可以改变第二消音腔431内阻抗失配界面的位置，提高通过频率附近的消声量，以满足特定频率段的消声效果，消声效果好。
具体而言，例如如图7-图8所示，第一连通管41分别与第二本体43的轴向一端和换热器2的第二端相连，第二连通管42与第二本体43的轴向另一端相连，第二连通管42插入第二消音腔431。可选地，第一连通管41、第二本体43以及第二连通管42的轴线平行设置。例如，第一连通管41、第二本体43以及第二连通管42轴线共线。由此，结构简单，消声效果好。
可选地，如图7所示，第二连通管42的位于第二消音腔431内的一端敞开，从而便于冷媒在第二消音腔431和第二连通管42之间的流通，而且结构简单。
当然，本申请不限于此，如图8所示，第二连通管42的位于第二消音腔431内的一端封闭，且第二连通管42的位于第二消音腔431内的部分的周壁上形成有多个第二通孔421，由此，针对特定频率的传递音，可利用亥姆霍兹共振器原理，使得流经第二连通管42的声能量由于共振而被吸收，提高消音效果。
在本申请的一些实施例中，第二通孔421的孔径范围为0.05-5mm。可以理解的是，孔径越小，消声越好，由此，有利于进一步地提高消声效果。
例如，第二通孔421的孔径为0.1mm、0.3mm、0.5mm、1mm、1.2mm、1.6mm、2mm、2.5mm、3mm、3.4mm、3.9mm、4mm或4.5mm等参数。
可选地，第二通孔421的数量为2个、5个或8个。可以理解的是，孔数越少可消除的频率越低。由此，有利于消除低频的噪音。
在本申请的一些实施例中，如图8所示，最远离第二连通管42的封闭端的第二通孔421与第二消音腔431的邻近第二连通管42的端部之间的距离大于5mm。也就是说，最远离第二连通管42的封闭端的第二通孔421与第二消音腔431的供第二连通管42穿过的侧壁之间的距离为L5，L5大于5mm。由此，有利于进一步提高消声效果，而且便于加工制造。
例如，L5为5.5mm，6mm，6.4mm，6.8mm,7mm或8mm。
在本申请的一些可选的实施例中，多个第二通孔421分为多组，每组包括至少两个第二通孔421，每组第二通孔421沿第二连通管42的轴向间隔设置，多组第二通孔421沿第二连通管42的周向间隔设置，相邻两组第二通孔421在第二连通管42的周向方向上错开设置。例如，如图8所示，14个第二通孔421分成四组，其中两组有4个第二通孔421，另外两组有3个第二通孔421，每组第二通孔421在第二连通管42的轴向间隔开设置，四组第二通孔421在第二连通管42的周向间隔开设置，相邻的两组第二通孔421在第二连通管42的周向方向上错开设置。由此，有利于进一步地提高消音效果。
可选地，参照图8所示，相邻两组第二通孔421中，相邻的两个第二通孔421的中心的连线与第二连通管42的中心轴线之间的夹角β的范围为30°-60°，也就是说，相邻的两个第二通孔421中的其中一个位于一组第二通孔421，相邻的两个第二通孔421中的另一个位于另一组第二通孔421，这两组第二通孔421是相邻的，相邻的两个第二通孔421的中心的连线与第二连通管42的中心轴线之间的夹角β的范围为30-60°。例如，α为35°、40°、45°、48°、50°或55°等参数。
可选地，每组第二通孔421中，相邻的两个第二通孔421之间的距离大于5mm。由此，有利于进一步提高消声效果，而且便于加工制造。例如，相邻的两个第二通孔421之间的距离为5.5mm，6mm，6.4mm，6.8mm，7mm或8mm。
在本申请的一些实施例中，第一连通管41插入第二消音腔431，第二连通管42位于第二消音腔431内的长度大于第一连通管41位于第二消音腔431内的长度。由此，有利于提高制冷模式下，第二消音器4的消音效果。
可选地，第二连通管42的位于第二消音腔431内的长度和第一连通管41的位于第二消音腔431内的长度均不大于第二消音器4的长度的四分之一，也就是说，第二连通管42的位于第二消音腔431内的长度不大于第二消音器4的长度的四分之一，第一连通管41的位于第二消音腔431内的长度不大于第二消音器4的长度的四分之一，第一连通管41的位于第二消音腔431内的长度与第二连通管42的位于第二消音腔431内的长度可以相等也可以不等。具体而言，参照图8所示，第二消音器4的长度为L6，第一连通管41的位于第二消音腔431内的部分的长度为L7，第二连通管42的位于第二消音腔431内的部分的长度为L8，L7≤1/4L6，L8≤1/4L6。由此，有利于合理优化第二消音器4的结构，提高消音效果。
当然，可以理解的是，第一连通管41还可以不插入第二消音腔431，第一连通管41仅与第二消音腔431的接口相连以与第二消音腔431连通，第二连通管42的位于第二消音腔431内的长度不大于第二消音器4的长度的二分之一，即，L8≤1/2L6。
根据本申请的一些实施例，空调室内机100进一步包括第三消音器5，第三消音器5连接至第一消音器3的远离换热器2的一端。具体而言，在制热模式，压缩机排出的高温高压的冷媒流向第三消音器5，接着流向第一消音器3，经第一消音器3的消音后进一步经过换热器2的第一端流向换热器2，并在换热器2内换热，换热后的冷媒可经过换热器2的第二端流向第二消音器4。由此，可在制热模式，实现换热器2的前端两级消音的目的，从而进一步地降低在制热时压缩机向换热器2辐射的声能，提高消音效果。
当然，可以理解的是，空调室内机100还可以包括第四消音器，第四消音器可与第二消音器4的远离换热器2的一端相连。具体而言，例如，在制冷模式，压缩机排出的高温高压的冷媒先流向室外换热器2，从室外换热器2流出的冷媒可经过第四消音器、第二消音器4的消音后流向换热器2的第二端，并在换热器2内换热，换热后的冷媒可经过换热器2的第一端流向第一消音器3。由此，可在制冷模式，实现换热器2的前端 两级消音的目的，从而进一步地降低在制冷时压缩机向换热器2辐射的声能，提高消音效果。
根据本申请的一些实施例，第二消音器4的第二消音腔431的横截面积小于第三消音器5的第三消音腔531的横截面积，第三消音腔531的横截面积小于第一消音器3的第一消音腔331的横截面积。通过上述设置有利于调整第一消音器3至第三消音器5的扩张比，采用不同的扩张比的消音器实现多级消声，提高消声效果。
在本申请的一些可选的实施例中，第二消音器4的长度大于第三消音器5的长度，第三消音器5的长度大于第一消音器3的长度。可以理解的是，消音器长度越长，针对低频传递音消声效果越好。由于压缩机某些频率噪音在通过消音器后仍然很大，通过使得第一消音器3至第三消音器5的长度不同，从而可针对不同频率的传递音进行消声，有利于提高消声效果。
可以理解的是，消音器的具体规格可以根据制冷/制热工况及压缩机传递音频率进行选用。
可选地，第一消音器3、第二消音器4和第三消音器5的扩张比不同。由于压缩机某些频率噪音在通过消音器后仍然很大，采用不同的扩张比的消音器实现多级消声，提高消声效果。可选地，第一消音器3、第二消音器4和第三消音器5的扩张比分别为大于1且小于10的数值。由此，有利于提高消音效果。
参照图9和图10所示，在本申请的一些实施例中，第三消音器5包括第三本体53、第一连接管51和第二连接管52，第三本体53形成有第三消音腔531，第一连接管51分别与第三本体53的一端和第二接管32相连，第二连接管52与第三本体53的另一端相连，第二连接管52插入第三消音腔531。由此，通过使得第二连接管52插入第三消音腔531，从而可以改变第三消音腔531内阻抗失配界面的位置，提高通过频率附近的消声量，以满足特定频率段的消声效果，消声效果好。
具体而言，例如如图11-图12所示，第一连接管51分别与第三本体53的轴向一端和第二接管32相连，第二连接管52与第三本体53的轴向另一端相连，第二连接管52插入第三消音腔531。可选地，第一连接管51、第二连接管52以及第三本体53的轴线平行设置。例如，第一连接管51、第二连接管52以及第三本体53的轴线共线。由此，结构简单，消声效果好。
可选地，如图9所示，第二连接管52的位于第三消音腔531内的一端敞开，从而便于冷媒在第三消音腔531和第二连接管52之间的流通，而且结构简单。
当然，本申请不限于此，如图10所示，第二连接管52的位于第三消音腔531内的一端封闭，且第二连接管52的位于第三消音腔531内的部分的周壁上形成有多个第三通孔521，由此，针对特定频率的传递音，可利用亥姆霍兹共振器原理，使得流经第二连接管52的声能量由于共振而被吸收，提高消音效果。
在本申请的一些实施例中，第三通孔521的孔径范围为0.05-5mm。可以理解的是，孔径越小，消声越好，由此，有利于进一步地提高消声效果。
例如，第三通孔521的孔径为0.1mm、0.3mm、0.5mm、1mm、1.2mm、1.6mm、2mm、2.5mm、3mm、3.4mm、3.9mm、4mm或4.5mm等参数。
可选地，第三通孔521的数量为2个、5个或8个。可以理解的是，孔数越少可消除的频率越低。由此，有利于消除低频的噪音。
在本申请的一些实施例中，如图10所示，最远离第二连接管52的封闭端的第三通孔521与第三消音腔531的邻近第二连接管52的端部之间的距离大于5mm。也就是说，最远离第二连接管52的封闭端的第三通孔521与第三消音腔531的供第二连接管52穿过的侧壁之间的距离为L9，L9大于5mm。由此，有利于进一步提高消声效果，而且便于加工制造。
例如，L9为5.5mm，6mm，6.4mm，6.8mm，7mm或8mm。
在本申请的一些可选的实施例中，多个第三通孔521分为多组，每组包括至少两个第三通孔521，每组第三通孔521沿第二连接管52的轴向间隔设置，多组第三通孔521沿第二连接管52的周向间隔设置，相邻两组第三通孔521在第二连接管52的周向方向上错开设置。例如，如图10所示，14个第三通孔521分成四组，其中两组有4个第三通孔521，另外两组有3个第三通孔521，每组第三通孔521在第二连接管52的轴向间隔开设置，四组第三通孔521在第二连接管52的周向间隔开设置，相邻的两组第三通孔521在第二连接管52的周向方向上错开设置。由此，有利于进一步地提高消音效果。
可选地，参照图10所示，相邻两组第三通孔521中，相邻的两个第三通孔521的中心的连线与第二连接管52的中心轴线之间的夹角γ的范围为30°-60°，也就是说，相邻的两个第三通孔521中的其中一个位于一组第三通孔521，相邻的两个第三通孔521中的另一个位于另一组第三通孔521，这两组第三通孔521是相邻的，相邻的两个第三通孔521的中心的连线与第二连接管52的中心轴线之间的夹角γ的范围为30-60°。例如，α为35°、40°、45°、48°、50°或55°等参数。
可选地，每组第三通孔521中，相邻的两个第三通孔521之间的距离大于5mm。由此，有利于进一步提高消声效果，而且便于加工制造。例如，相邻的两个第三通孔521之间的距离为5.5mm，6mm，6.4mm，6.8mm，7mm或8mm。
在本申请的一些实施例中，第一连接管51插入第三消音腔531，第二连接管52的位于第三消音腔531内的长度大于第一连接管51位于第三消音腔531内的长度。由此，有利于提高制热模式下，第三消音器5的消音效果。
可选地，第二连接管52的位于第三消音腔531内的长度和第一连接管51的位于第三消音腔531内的长度均不大于第三消音器5的长度的四分之一，也就是说，第二连接管52的位于第三消音腔531内的长度不大于第三消音器5的长度的四分之一，第一连接管51的位于第三消音腔531内的长度不大于第三消音器5的长度的四分之一，第一连接管51的位于第三消音腔531内的长度与第二连接管52的位于第三消音腔531内的长度可以相等也可以不等。具体而言，参照图10所示，第三消音器5的长度为L10，第一连接管51的位于第三消音腔531内的部分的长度为L11，第二连接管52的位于第 三消音腔531内的部分的长度为L12，L11≤1/4L10，L12≤1/4L10。由此，有利于合理优化第三消音器5的结构，提高消音效果。
当然，可以理解的是，第一连接管51还可以不插入第三消音腔531，第一连接管51仅与第三消音腔531的接口相连以与第三消音腔531连通，第二连接管52的位于第三消音腔531内的长度不大于第二消音器4的长度的二分之一，即，L12≤1/2L10。
在本申请的一些实施例中，第一消音器3沿机壳的宽度方向(例如图1中的上下方向)延伸，第二消音器4沿机壳的长度方向(例如，图1中的左右方向)延伸。具体而言，例如，空调室内机100为壁挂式空调室内机，第一消音器3、第二消音器4以及第三消音器5均位于换热器2的后侧，在垂直于前后方向的平面内，第一消音器3、第二消音器4和第三消音器5的投影的至少部分均位于换热器的投影内，机壳的长度方向为左右方向，机壳的宽度方向为上下方向。又如，空调室内机100为落地式空调室内机100，第一消音器3、第二消音器4以及第三消音器5均位于换热器2的后侧，在垂直于前后方向的平面内，第一消音器3、第二消音器4和第三消音器5的投影的至少部分均位于换热器的投影内，机壳的长度方向为上下方向，机壳的宽度方向为左右方向。由此，在不增加机壳的体积的前提下，有利于充分利用机壳的具体结构来布置第一消音与第二消音器4。
在本申请的一些可选的实施例中，如图1所示，空调室内机100还包括第一冷媒管6和第二冷媒管7，第一冷媒管6与换热器2的第一端相连，第二冷媒管7与换热器2的第二端相连，第一消音器3和第三消音器5均串联在第一冷媒管6上，第二消音器4串联在第二冷媒管7上。由此，结构简单，便于空调室内机100与空调室外机的连接。
可选地，第一冷媒管6的远离换热器2的一端连接有低压管连接螺栓61，第二冷媒管7的远离换热器2的一端连接有高压管连接螺栓71。从而便于空调室内机100与空调室外机的连接。
在本申请的描述中，需要理解的是，术语“中心”、“长度”、“宽度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“轴向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。在本申请的描述中，“多个”的含义是两个或两个以上。在本申请的描述中，第一特征在第二特征“之上”或“之下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。在本申请的描述中，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说 明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (11)

  1. 一种空调室内机，其特征在于，包括：
    壳体；
    换热器，所述换热器设在所述壳体内；
    第一消音器，所述第一消音器位于所述壳体内且与所述换热器的第一端相连；
    第二消音器，所述第二消音器位于所述壳体内且与所述换热器的第二端相连。
  2. 根据权利要求1所述的空调室内机，其特征在于，进一步包括第三消音器，所述第三消音器连接至所述第一消音器的远离所述换热器的一端。
  3. 根据权利要求2所述的空调室内机，其特征在于，所述第二消音器的长度大于所述第三消音器的长度，所述第三消音器的长度大于所述第一消音器的长度。
  4. 根据权利要求2所述的空调室内机，其特征在于，所述第二消音器的第二消音腔的横截面积小于所述第三消音器的第三消音腔的横截面积，所述第三消音腔的横截面积小于所述第一消音器的第一消音腔的横截面积。
  5. 根据权利要求1所述的空调室内机，其特征在于，所述第一消音器包括第一本体、第一接管和第二接管，所述第一本体形成有第一消音腔，所述第一接管分别与所述第一本体的一端和所述换热器的第一端相连，所述第二接管与所述第一本体的另一端相连且插入所述第一消音腔；所述第二消音器包括第二本体、第一连通管和第二连通管，所述第二本体形成有第二消音腔，所述第一连通管分别与所述换热器的第二端和所述第二本体的一端相连，所述第二连通管与所述第二本体的另一端相连且插入所述第二消音腔；在制冷模式，冷媒从所述换热器的第二端流向所述换热器的第一端，在制热模式，冷媒从所述换热器的第一端流向所述换热器的第二端；
    其中，所述第二接管的位于所述第一消音腔内的一端封闭，且所述第二接管的位于所述第一消音腔内的部分的周壁上形成有多个第一通孔；和/或，所述第二连通管的位于所述第二消音腔内的一端封闭，且所述第二连通管的位于所述第二消音腔内的部分的周壁上形成有多个第二通孔。
  6. 根据权利要求5所述的空调室内机，其特征在于，所述第一通孔的孔径范围为0.05-5mm，和/或所述第二通孔的孔径范围为0.05-5mm；。
  7. 根据权利要求5所述的空调室内机，其特征在于，最远离所述第二接管的封闭端的所述第一通孔与所述第一消音腔的邻近所述第二接管的端部之间的距离大于5mm；和/或，最远离所述第二连通管的封闭端的所述第二通孔与所述第二消音腔的邻近所述第二连通管的端部之间的距离大于5mm。
  8. 根据权利要求5所述的空调室内机，其特征在于，多个所述第一通孔分为多组，每组包括至少两个所述第一通孔，每组所述第一通孔沿所述第二接管的轴向间隔设置，多组所述第一通孔沿所述第二接管的周向间隔设置，相邻两组所述第一通孔在所述第二接管的 周向方向上错开设置；和/或，多个所述第二通孔分为多组，每组包括至少两个所述第二通孔，每组所述第二通孔沿所述第二连通管的轴向间隔设置，多组所述第二通孔沿所述第二连通管的周向间隔设置，相邻两组所述第二通孔在所述第二连通管的周向方向上错开设置。
  9. 根据权利要求1所述的空调室内机，其特征在于，所述第一消音器包括第一本体、第一接管和第二接管，所述第一本体形成有第一消音腔，所述第一接管分别与所述第一本体的一端和所述换热器的第一端相连且所述第一接管插入所述第一消音腔，所述第二接管与所述第一本体的另一端相连且插入所述第一消音腔；所述第二消音器包括第二本体、第一连通管和第二连通管，所述第二本体形成有第二消音腔，所述第一连通管分别与所述换热器的第二端和所述第二本体的一端相连且所述第一连通管插入所述第一消音腔，所述第二连通管与所述第二本体的另一端相连且插入所述第二消音腔；在制冷模式，冷媒从所述换热器的第二端流向所述换热器的第一端，在制热模式，冷媒从所述换热器的第一端流向所述换热器的第二端；
    其中，所述第二接管位于所述第一消音腔内的长度大于所述第一接管位于所述第一消音腔内的长度；和/或，所述第二连通管位于所述第二消音腔内长度大于所述第二连通管的位于所述第二消音腔内的长度。
  10. 根据权利要求1所述的空调室内机，其特征在于，所述第一消音器包括第一本体、第一接管和第二接管，所述第一本体形成有第一消音腔，所述第一接管分别与所述第一本体的一端和所述换热器的第一端相连且所述第一接管插入所述第一消音腔，所述第二接管与所述第一本体的另一端相连且插入所述第一消音腔；所述第二消音器包括第二本体、第一连通管和第二连通管，所述第二本体形成有第二消音腔，所述第一连通管分别与所述换热器的第二端和所述第二本体的一端相连且所述第一连通管插入所述第一消音腔，所述第二连通管与所述第二本体的另一端相连且插入所述第二消音腔；
    所述第二接管位于所述第一消音腔内的长度和所述第一接管位于所述第一消音腔内的长度均不大于所述第一消音器的长度的四分之一；和/或，所述第二连通管位于所述第二消音腔内的长度和所述第一连通管位于所述第二消音腔内的长度均不大于所述第二消音器的长度的四分之一。
  11. 根据权利要求1-10中任一项所述的空调室内机，其特征在于，所述第一消音器沿所述机壳的宽度方向延伸，所述第二消音器沿所述机壳的长度方向延伸。
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