Noise reduction device, air conditioner outdoor unit and air conditioner equipment

Abstract

The utility model relates to a noise reduction device, an air conditioner outdoor unit and air conditioning equipment. The noise reduction device comprises a shell and a neck pipe, the shell is provided with a resonant cavity and a connecting port communicated with the resonant cavity, one end of the neck pipe is connected to the connecting port, the other end of the neck pipe is suitable for being communicated with an exhaust pipe of a compressor of the air conditioner outdoor unit, and the size of the resonant cavity can be adjusted at least in the first direction and the second direction. The first direction intersects the second direction. The size of the resonant cavity of the noise reduction device can be adjusted in multiple directions, so that the volume of the resonant cavity has a larger adjusting range, the resonant cavity can have more inherent frequencies, and the range of the noise reduction sound frequency of the noise reduction device can be widened.

Description

Technical Field

[0001] The present disclosure relates to the technical field of noise reduction equipment for air-conditioning outdoor units, and in particular to a noise reduction device, an air-conditioning outdoor unit, and air-conditioning equipment. Background Art

[0002] When the outdoor unit of the air conditioner is running, aerodynamic noise is generated in the exhaust pipe of the compressor. Therefore, a noise reduction device is usually provided on the exhaust pipe.

[0003] In the related art, such noise reduction devices generally adopt the Helmholtz resonance cavity principle to attenuate aerodynamic noise of a specific frequency in the exhaust pipe through resonance. However, the sound frequency that can be reduced by the noise reduction device is limited. Utility Model Content

[0004] The purpose of the present disclosure is to provide a noise reduction device, an air-conditioning outdoor unit, and an air-conditioning device to at least partially solve the above technical problems.

[0005] To achieve the above objectives, the present disclosure provides a noise reduction device, comprising a housing and a neck tube, wherein the housing is provided with a resonance cavity and a connection port communicating with the resonance cavity, one end of the neck tube is connected to the connection port, and the other end of the neck tube is adapted to communicate with an exhaust pipe of a compressor of an air conditioner outdoor unit;

[0006] The resonant cavity is configured to be adjustable in size in at least a first direction and a second direction, wherein the first direction intersects the second direction.

[0007] Optionally, the housing includes a housing body and two first partitions;

[0008] A cavity is provided in the shell body, the two first partitions are arranged in the cavity and spaced apart along the first direction, and the surfaces of the two first partitions facing each other are both inner walls of the resonance cavity;

[0009] At least one of the first partitions is movably arranged in the cavity in the first direction, so that the size of the resonant cavity in the first direction can be adjusted.

[0010] Optionally, the housing further includes a second partition, the housing body includes a first portion, and the first portion and the second partition are spaced apart in the second direction;

[0011] The surfaces of the second partition and the first part facing each other are both inner walls of the resonance cavity;

[0012] The second partition is movably arranged in the cavity in the second direction, so that the size of the resonance cavity in the second direction can be adjusted.

[0013] Optionally, the second partition includes a first plate body and two second plate bodies located on opposite sides of the first plate body;

[0014] One of the two second plates is movably connected to the first plate along the first direction, and is movably connected to one of the two first partitions along the second direction;

[0015] The other of the two second plates is movably connected to the first plate along the first direction, and is movably connected to the other of the two first partitions along the second direction.

[0016] Optionally, one of the first plate body and the second plate body is provided with a first sliding groove, and the other is provided with a first sliding block, and the first sliding block is slidably engaged with the first sliding groove along the first direction.

[0017] Optionally, two first sliding blocks are provided on the first plate, and two first sliding grooves are provided on each second plate;

[0018] The two first sliding blocks are symmetrically arranged about the midline of the first plate in the third direction, and the two first sliding grooves in the same second plate are symmetrically arranged about the midline of the second plate;

[0019] The third direction is perpendicular to both the first direction and the second direction.

[0020] Optionally, one of the second plate and the first partition is provided with a second sliding groove, and the other is provided with a second sliding block, and the second sliding block is slidably engaged with the second sliding groove along the second direction.

[0021] Optionally, the noise reduction device further includes an adjustment mechanism, and the adjustment mechanism is used to drive the first baffle to move in the first direction and drive the second baffle to move in the second direction.

[0022] Optionally, the adjustment mechanism is configured to synchronously drive the second partition to move along the second direction when driving the first partition to move along the first direction.

[0023] Optionally, the adjustment mechanism is configured to simultaneously drive the second partition to move toward the first portion in the process of driving the two first partitions toward each other along the first direction; and / or,

[0024] The adjustment mechanism is configured to synchronously drive the second partition to move in a direction away from the first portion during the process of driving the two first partitions to move away from each other in the first direction.

[0025] Optionally, the adjustment mechanism comprises at least two articulated arms;

[0026] One end of the articulated arm is hinged to the corresponding first partition, and the other end of the articulated arm is hinged to the second partition.

[0027] Optionally, the noise reduction device further includes a locking member;

[0028] The locking member is provided on the second partition. The first partition is provided with a plurality of matching portions spaced apart along the second direction. The locking member can be unlockably connected to any of the matching portions.

[0029] Optionally, the matching portion includes a card slot;

[0030] The locking member includes an elastic clamping member, one end of which is hinged to the second partition plate, and the other end of which is detachably clamped to the clamping slot.

[0031] Optionally, the noise reduction device further includes an operating rod extending along the first direction, one end of the operating rod is connected to the second partition plate, and the other end of the operating rod is provided with an operating portion.

[0032] Optionally, the housing body further comprises a first portion, two first side portions and two second side portions;

[0033] The two first side portions are arranged at intervals along the first direction, and the two second side portions are arranged at intervals along the third direction. The two first side portions and the two second side portions are respectively connected to the first portion to enclose a shell with an opening at one end located in the second direction, and the connection port is set in the first portion.

[0034] Optionally, the noise reduction device further includes a connecting pipe, one end of the neck pipe is connected to the connecting port, and the other end of the neck pipe is connected to the exhaust pipe through the connecting pipe.

[0035] According to a second aspect of the present disclosure, there is provided an air-conditioning outdoor unit comprising a compressor and the above-mentioned noise reduction device;

[0036] The connection port of the noise reduction device is communicated with the exhaust pipe of the compressor.

[0037] According to a third aspect of the present disclosure, an air-conditioning device is provided, comprising the above-mentioned air-conditioning outdoor unit.

[0038] Through the above technical solution, since the resonance cavity is configured to be adjustable in size in at least the first direction and the second direction, and the first direction intersects the second direction, that is, the size of the resonance cavity in the first direction can be adjusted both in the first direction and in the second direction, the size of the resonance cavity disclosed in the present invention can be adjusted in multiple directions, which is beneficial for the volume of the resonance cavity to have a larger adjustment range, so that the resonance cavity can have more natural frequencies, which is beneficial for widening the range of sound frequencies that the noise reduction device can reduce.

[0039] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0041] Figure 1 It is a schematic diagram of the three-dimensional structure of a noise reduction device provided in one embodiment of the present disclosure.

[0042] Figure 2 yes Figure 1 A local enlarged schematic diagram of point A in the middle.

[0043] Figure 3 It is a cross-sectional schematic diagram of a noise reduction device provided in one embodiment of the present disclosure.

[0044] Figure 4 It is a cross-sectional schematic diagram of a second partition provided in one embodiment of the present disclosure.

[0045] Description of Reference Numerals

[0046] 10-shell; 11-resonance cavity; 12-connecting port; 13-shell body; 131-cavity; 132-first part; 133-first side; 134-second side; 20-neck tube; 31-first partition; 311-matching part; 3111-slot; 32-second partition; 321-first plate; 322-second plate; 41-first slide groove; 42-second slide groove; 51-first slider; 52-second slider; 60-adjusting mechanism; 61-articulated arm; 70-locking piece; 71-elastic clip; 80-operating lever; 81-operating part; 90-connecting tube. DETAILED DESCRIPTION

[0047] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0048] In this disclosure, unless otherwise stated, directional terms such as "upper, lower, top, and bottom" are generally defined based on the upper, lower, top, and bottom of the air conditioner outdoor unit in normal use. They are only used to facilitate the description of this disclosure and simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, specific orientation structure, and operation. Therefore, they should not be understood as limiting this disclosure. "Inside" and "outside" refer to the inside and outside of the corresponding component outline, and "first direction, second direction, and third direction" can be referred to in the following. Figure 1 The first, second, and third directions are shown. Furthermore, the terms "first," "second," etc. are used to distinguish one element from another and have no sequential or importance.

[0049] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed," "connected," "connected," and "installed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections, and may be directly connected or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0050] Research has found that in related technologies, the reason why the sound frequency that can be attenuated by the noise reduction device using the Helmholtz resonance cavity principle is limited is that the sound frequency that can be attenuated by the noise reduction device is related to the natural frequency of its resonance cavity, and the natural frequency of the resonance cavity is related to the volume of the resonance cavity. However, the volume of the resonance cavity of such noise reduction devices in related technologies is usually not adjustable or the adjustment range is limited, which leads to the limited sound frequency that can be attenuated.

[0051] In view of this, if Figures 1 to 4 As shown, the present disclosure provides a noise reduction device, including a shell 10 and a neck tube 20, the shell 10 is provided with a resonance cavity 11 and a connection port 12 connected to the resonance cavity 11, one end of the neck tube 20 is connected to the connection port 12, and the other end of the neck tube 20 is suitable for connecting with the exhaust pipe of the compressor of the air conditioner outdoor unit, and the resonance cavity 11 is configured to be adjustable in size in at least a first direction and a second direction, and the first direction intersects with the second direction.

[0052] Through the above technical solution, since the resonance cavity 11 is connected to the exhaust pipe of the compressor of the air conditioner outdoor unit through the neck tube 20, the resonance cavity 11 and the neck tube 20 can generate a Helmholtz resonance cavity phenomenon, thereby reducing the aerodynamic noise in the exhaust pipe. That is, when the aerodynamic noise in the exhaust pipe matches the natural frequency of the resonance cavity 11, the resonance cavity 11 can be excited by the aerodynamic noise in the exhaust pipe, causing the gas in the neck tube 20 to resonate, thereby consuming the sound energy of the aerodynamic noise in the exhaust pipe and achieving a noise reduction effect.

[0053] Furthermore, since the resonance cavity 11 is configured to have adjustable dimensions in at least the first and second directions, and the first direction intersects the second direction, that is, the dimension of the resonance cavity 11 in the first direction can be adjusted both in the first and second directions, the dimension of the resonance cavity 11 disclosed in the present invention can be adjusted in multiple directions, which is beneficial for the volume of the resonance cavity 11 to have a larger adjustment range, thereby allowing the resonance cavity 11 to have more natural frequencies, which in turn is beneficial for widening the range of sound frequencies that the noise reduction device can reduce.

[0054] In order to adjust the size of the resonant cavity 11 in the first direction, as an embodiment, Figure 3 As shown, the shell 10 includes a shell body 13 and two first partitions 31. A cavity 131 is provided in the shell body 13. The two first partitions 31 are arranged in the cavity 131 and are spaced apart along the first direction. The surfaces of the two first partitions 31 facing each other are the inner walls of the resonance cavity 11, wherein at least one first partition 31 is movably arranged in the cavity 131 in the first direction so that the size of the resonance cavity 11 set in the first direction can be adjusted.

[0055] Since the two first partitions 31 are arranged at intervals along the first direction, and the surfaces of the two first partitions 31 facing each other are the inner walls of the resonance cavity 11, the size of the resonance cavity 11 in the first direction can be adjusted by moving one or both of the two first partitions 31 along the first direction.

[0056] As other embodiments of the present disclosure, the noise reduction device may further include two first diaphragms, a cavity 131 is provided in the shell body 13, the two first diaphragms are arranged in the cavity 131 and are spaced apart along the first direction, and the surfaces of the two first diaphragms facing each other are the inner walls of the resonance cavity 11, wherein at least one first diaphragm is deformably arranged in the cavity 131 in the first direction so that the size of the resonance cavity 11 set in the first direction can be adjusted.

[0057] Here, the two first partitions 31 can be connected to the shell 10 through a slide rail structure extending along the first direction, or they can be connected through the first part 132 described below and a baffle (not shown in the figure) extending along the first direction set at the opening of the shell 10. As long as the two first partitions 31 can be restricted from moving relative to the shell 10 along the first direction, the present disclosure does not impose any restrictions on this.

[0058] In order to adjust the size of the resonant cavity 11 in the second direction, as an embodiment, Figure 3As shown, the shell 10 also includes a second partition 32, and the shell body 13 includes a first part 132. The first part 132 and the second partition 32 are arranged at intervals in the second direction, and the surfaces of the second partition 32 and the first part 132 facing each other are the inner walls of the resonance cavity 11, wherein the second partition 32 is movably arranged in the second direction in the cavity 131 so that the size of the resonance cavity 11 set in the second direction can be adjusted.

[0059] Since the first part 132 and the second partition 32 are spaced apart in the second direction, and the surfaces of the second partition 32 and the first part 132 facing each other are the inner walls of the resonance cavity 11, the size of the resonance cavity 11 in the second direction can be adjusted by moving the two second partitions 32 along the second direction.

[0060] As other embodiments of the present disclosure, the noise reduction device may further include a second diaphragm, the shell body 13 includes a first part 132, the first part 132 and the second diaphragm are arranged at intervals in the second direction, and the surfaces of the second diaphragm and the first part 132 facing each other are the inner walls of the resonance cavity 11, wherein the second diaphragm is deformably arranged in the cavity 131 in the second direction so that the size of the resonance cavity 11 set in the second direction can be adjusted.

[0061] Alternatively, as Figure 2 and Figure 3 As shown, the second partition 32 includes a first plate body 321 and two second plate bodies 322 located on opposite sides of the first plate body 321, one of the two second plate bodies 322 is movably connected to the first plate body 321 along the first direction and movably connected to one of the two first partitions 31 along the second direction, and the other of the two second plate bodies 322 is movably connected to the first plate body 321 along the first direction and movably connected to the other of the two first partitions 31 along the second direction.

[0062] Since one of the two second plates 322 is movably connected to the first plate 321 along the first direction and is movably connected to one of the two first partitions 31 along the second direction, the second partition 32 has a certain elasticity in the first direction, that is, when the distance between the two first plates 321 in the first direction is reduced, the length of the second partition 32 in the first direction can be shortened accordingly; when the distance between the two first plates 321 in the first direction is increased, the length of the second partition 32 in the first direction can be increased accordingly; and, during the movement of the first partition 31 along the first direction and the movement of the second partition 32 along the second direction, the second partition 32 is always connected to the first partition 31, which is beneficial to improving the sealing between the first partition 31 and the second partition 32, and further beneficial to improving the sealing of the resonance cavity 11, ensuring that the resonance cavity 11 can function.

[0063] Furthermore, under the limiting effect of the two first partitions 31 , the second partition 32 located between the two first partitions 31 can be prevented from being deflected as a whole, thereby ensuring that the second partition 32 moves smoothly along the second direction as a whole.

[0064] It is understood that, in order to improve the sealing of the resonant cavity 11, in the first direction, the second plate 322 can be attached to the corresponding first partition 31, and in the second direction, the second plate 322 can be attached to the first plate 321. Similarly, in the second direction, the two first partitions 31 can be attached to the first portion 132.

[0065] The present disclosure does not limit the connection method between the first plate 321 and the second plate 322. As an embodiment, Figure 4 As shown, one of the first plate 321 and the second plate 322 is provided with a first slide groove 41, and the other is provided with a first slider 51. The first slider 51 slides along the first direction and fits in the first slide groove 41. Since the first slider 51 slides along the first direction and fits in the first slide groove 41, when the first partition 31 moves along the first direction, the second plate 322 can move relative to the first plate 321 in the first direction, and the second plate 322 can move in the second direction along with the first plate 321.

[0066] As another embodiment of the present disclosure, one of the first plate 321 and the second plate 322 is provided with a first sliding rod, and the other is provided with a first sliding hole. The first sliding hole is movably mounted on the first sliding rod along a first direction.

[0067] Here, the first slide groove 41 can be a trapezoidal slide groove or a wedge-shaped slide groove, and the first slider 51 can be a trapezoidal slider or a wedge-shaped slider. As long as the cooperation between the first slider 51 and the first slide groove 41 prevents the two from separating from each other along the second direction, the present disclosure does not limit this.

[0068] Alternatively, as Figure 4 As shown, two first sliders 51 are provided on the first plate 321, and two first chutes 41 are provided on each second plate 322. The two first sliders 51 are symmetrically arranged about the midline of the first plate 321 in the third direction. The two first chutes 41 in the same second plate 322 are symmetrically arranged about the midline of the second plate 322. The third direction is perpendicular to both the first and second directions. The cooperation between the two first sliders 51 and the two first chutes 41 achieves the connection between the first plate 321 and the second plate 322, which helps to increase the stability of the connection between the two.

[0069] Moreover, the two first sliders 51 are symmetrically arranged about the center line of the first plate 321 in the third direction, and the two first slide grooves 41 in each two second plates 322 are symmetrically arranged about the center line of the second plate 322, which is beneficial for ensuring the stability of the posture of the first plate 321 and the second plate 322 during the movement.

[0070] The present disclosure does not limit the connection method between the first plate 321 and the second plate 322. As an embodiment, Figure 2 and Figure 3 As shown, one of the second plate 322 and the first partition 31 is provided with a second slide groove 42, and the other is provided with a second slider 52. The second slider 52 slides along the second direction and fits in the second slide groove 42. Since the second slider 52 slides along the second direction and fits in the second slide groove 42, when the first plate 321 moves along the second direction, the second plate 322 can move in the second direction relative to the first partition 31, and the second plate 322 can move in the first direction along with the first partition 31.

[0071] As another embodiment of the present disclosure, one of the first partition plate 31 and the second plate body 322 is provided with a second sliding rod, and the other is provided with a second sliding hole. The second sliding hole is movably mounted on the second sliding rod along the second direction.

[0072] Here, the second slide groove 42 can be a trapezoidal slide groove or a wedge-shaped slide groove, and the second slider 52 can be a trapezoidal slider or a wedge-shaped slider. As long as the cooperation between the second slider 52 and the second slide groove 42 prevents the two from separating from each other along the second direction, the present disclosure does not limit this.

[0073] Alternatively, as Figure 1 and Figure 2 As shown, the noise reduction device further includes an adjustment mechanism 60, which is used to drive the first partition 31 to move in the first direction and the second partition 32 to move in the second direction. With this arrangement, the adjustment mechanism 60 can not only drive the first partition 31 to move in the first direction, but also drive the second partition 32 to move in the second direction, thereby reducing the difficulty of adjusting the size of the resonance cavity 11.

[0074] To improve the efficiency of adjusting the size of the resonant cavity 11, as one embodiment, the adjustment mechanism 60 is configured to simultaneously drive the second partition 32 to move in the second direction when driving the first partition 31 to move in the first direction. This configuration allows the adjustment of the size of the resonant cavity 11 in both the first and second directions to be completed through a single input of the adjustment mechanism 60, thereby reducing the difficulty of adjusting the size of the resonant cavity 11 and improving the efficiency of the adjustment.

[0075] Optionally, the adjustment mechanism 60 can be configured to synchronously drive the second partition 32 to move toward the first part 132 while driving the two first partitions 31 toward each other in the first direction, and / or, the adjustment mechanism 60 can be configured to synchronously drive the second partition 32 to move toward the direction away from the first part 132 while driving the two first partitions 31 away from each other in the first direction.

[0076] With such arrangement, the two first partitions 31 can be driven toward each other by the adjustment mechanism 60, and the second partition 32 can be driven toward the first portion 132 at the same time, so that the size of the resonance cavity 11 in the first direction and the size in the second direction are synchronously reduced. The two first partitions 31 can also be driven away from each other by the adjustment mechanism 60, and the second partition 32 can be driven away from the first portion 132 at the same time, so that the size of the resonance cavity 11 in the first direction and the size in the second direction are synchronously increased. That is to say, under the drive of the adjustment mechanism 60, the size of the resonance cavity 11 in the first direction and the second direction can be synchronously increased or decreased, which is beneficial to improving the adjustment efficiency of the volume of the resonance cavity 11, and further beneficial to making the noise reduction device more flexible and efficient in controlling noise.

[0077] The present disclosure does not limit the structure of the adjustment mechanism 60. As an embodiment, Figure 1 and Figure 2 As shown, the adjustment mechanism 60 includes at least two articulated arms 61 , one end of the articulated arm 61 is hinged to the corresponding first partition 31 , and the other end of the articulated arm 61 is hinged to the second partition 32 .

[0078] When the first partition 31 moves in the first direction, it can drive the hinged arm 61 to rotate and drive the second partition 32 to move in the second direction, so that the movement of the first partition 31 in the first direction can drive the second partition 32 to move in the second direction.

[0079] Similarly, when the second partition 32 moves in the second direction, it can drive the hinged arm 61 to rotate, thereby driving the first partition 31 to move in the first direction, so that the movement of the second partition 32 in the second direction can drive the corresponding first partition 31 to move in the first direction.

[0080] As another embodiment of the present disclosure, the adjustment mechanism 60 may further include a power member and two transmission systems, wherein the power member drives the two transmission systems to respectively drive the first partition 31 and the second partition 32 to move.

[0081] In order to prevent the volume of the resonance cavity 11 from changing automatically under the action of the airflow, as an embodiment, Figure 2As shown, the noise reduction device further includes a locking member 70 , which is disposed on the second partition 32 . The first partition 31 is provided with a plurality of mating portions 311 spaced apart along the second direction. The locking member 70 can be unlockably connected to any mating portion 311 .

[0082] After completing the adjustment of the volume of the resonance cavity 11, the second partition 32 can be locked in the second direction relative to the shell body 13 by connecting the locking piece 70 with the locking part corresponding to its position, and under the connecting action of the articulated arm 61, the first partition 31 can be locked in the first direction relative to the shell body 13, thereby achieving the locking of the dimensions of the resonance cavity 11 in the first direction and the locking of the dimensions in the second direction, thereby preventing the volume of the resonance cavity 11 from changing automatically under the action of airflow.

[0083] It is understandable that when the volume of the resonance cavity 11 needs to be adjusted again, the lock between the locking member 70 and the locking portion can be released, so that the second partition plate 32 can move in the second direction relative to the shell body 13.

[0084] The present disclosure does not limit the structure of the locking member 70 and the locking portion. As an embodiment, Figure 2 As shown, the mating portion 311 may include a slot 3111, and the locking member 70 may include an elastic clip 71, one end of the elastic clip 71 being hinged to the second partition plate 32, and the other end of the elastic clip 71 being detachably engaged with the slot 3111. With this arrangement, the elastic clip 71 can be rotated relative to the second partition plate 32 to engage one end of the elastic clip 71 with the slot 3111, or the elastic clip 71 can be rotated relative to the second partition plate 32 to detach one end of the elastic clip 71 from the slot 3111.

[0085] Here, optionally, the latching slot 3111 may be provided in the second sliding slot 42 , and the elastic latching member 71 may be hinged to the second sliding block 52 .

[0086] As other embodiments of the present disclosure, the mating portion 311 may include a slot, and the locking member 70 may include a sliding plug-in, which is movably connected to the second partition 32 along a first direction, and one end of the sliding plug-in is detachably inserted into the card slot 3111.

[0087] Alternatively, as Figure 1 and Figure 3 As shown, the noise reduction device may further include an operating rod 80 extending along the first direction, one end of the operating rod 80 is connected to the second partition 32, and the other end of the operating rod 80 is provided with an operating part 81. Since the operating rod 80 extends along the first direction, it is convenient for manual labor or power parts (such as electric drive equipment) to operate the operating part 81 to drive the second partition 32 to move.

[0088] Especially in the embodiment where the shell body 13 also includes a first part 132, two first side parts 133 and two second side parts 134, by reasonably setting the length of the operating rod 80, the operating part 81 is located outside the opening of the shell 10, which can facilitate manual or power parts to push or pull the second partition 32.

[0089] In an embodiment where the power source is a manual power source, the operating rod 80 extends along the first direction, which can facilitate a human hand to grasp the operating part 81 and push or pull the second partition 32 to move along the second direction when the distance between the human hand and the second partition 32 is large.

[0090] The present disclosure does not limit the structure of the operating portion 81. Optionally, the operating portion 81 can be constructed as a rod-shaped member extending along the first direction, so that when a person grasps the operating portion 81, the second partition 32 can be pushed or pulled to exert better force.

[0091] Alternatively, as Figure 1 As shown, the shell body 13 also includes a first part 132, two first side parts 133 and two second side parts 134. The two first side parts 133 are arranged at intervals along the first direction, and the two second side parts 134 are arranged at intervals along the third direction. The two first side parts 133 and the two second side parts 134 are respectively connected to the first part 132 to enclose a shell 10 with an opening at one end located in the second direction, and the connection port 12 is set in the first part 132.

[0092] The shell 10 with an open end surrounded by the first part 132, two first side parts 133 and two second side parts 134 can protect the internal components to prevent the internal components from being accidentally moved or damaged. For example, the first partition 31, the second partition 32, the adjustment mechanism 60 and the locking member 70 can all be accommodated in the shell 10 and protected. The opening on the shell 10 can facilitate inspection and operation of the internal structure.

[0093] It is understandable that the second portion of the shell body 13 can be two first side portions 133 and two second side portions 134 , and the cavity 131 mentioned above can be a space enclosed by the first portion 132 , two first side portions 133 and two second side portions 134 .

[0094] In this embodiment, the two end faces of the second partition 32 in the third direction can be respectively fitted with the two second side portions 134, and the resonance cavity 11 can be enclosed by the first part 132, the first side portion 133, the second side portion 134, the first partition 31, the first plate body 321 and the second plate body 322.

[0095] In order to facilitate the connection between the neck pipe 20 and the exhaust pipe, optionally, as Figure 3As shown, the noise reduction device further includes a connecting pipe 90. One end of the neck pipe 20 is connected to the connecting port 12, and the other end of the neck pipe 20 is connected to the exhaust pipe through the connecting pipe 90. The connecting pipe 90 can be configured to extend along the extension direction of the exhaust gas, that is, the ends of the connecting pipe 90 are respectively connected to the upstream and downstream sections of the exhaust pipe. Compared with opening a hole in the exhaust pipe, this connection method is more convenient for connecting and sealing the exhaust pipe and the connection.

[0096] According to a second aspect of the present disclosure, an air-conditioning outdoor unit is provided, comprising a compressor and the above-mentioned noise reduction device, wherein the connection port 12 of the noise reduction device is communicated with the exhaust pipe of the compressor.

[0097] According to a third aspect of the present disclosure, an air-conditioning device is provided, comprising the above-mentioned air-conditioning outdoor unit.

[0098] The present disclosure does not limit the type of air-conditioning equipment. For example, the air-conditioning equipment may be a ducted air conditioner.

[0099] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0100] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0101] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A noise reduction device, characterized in that: The invention comprises a shell and a neck tube, wherein the shell is provided with a resonance cavity and a connection port communicating with the resonance cavity, one end of the neck tube is connected to the connection port, and the other end of the neck tube is adapted to communicate with the exhaust pipe of the compressor of the air conditioner outdoor unit; The resonant cavity is configured to be adjustable in size in at least a first direction and a second direction, wherein the first direction intersects the second direction.

2. The noise reduction device according to claim 1, characterized in that The shell includes a shell body and two first partitions; A cavity is provided in the shell body, the two first partitions are arranged in the cavity and spaced apart along the first direction, and the surfaces of the two first partitions facing each other are both inner walls of the resonance cavity; At least one of the first partitions is movably arranged in the cavity in the first direction, so that the size of the resonant cavity in the first direction can be adjusted.

3. The noise reduction device according to claim 2, characterized in that The housing further includes a second partition, the housing body includes a first portion, and the first portion and the second partition are spaced apart in the second direction; The surfaces of the second partition and the first part facing each other are both inner walls of the resonance cavity; The second partition is movably arranged in the cavity in the second direction, so that the size of the resonance cavity in the second direction can be adjusted.

4. The noise reduction device according to claim 3, characterized in that: The second partition includes a first plate body and two second plates located on opposite sides of the first plate body; One of the two second plates is movably connected to the first plate along the first direction, and is movably connected to one of the two first partitions along the second direction; The other of the two second plates is movably connected to the first plate along the first direction, and is movably connected to the other of the two first partitions along the second direction.

5. The noise reduction device according to claim 4, characterized in that: One of the first plate body and the second plate body is provided with a first sliding groove, and the other is provided with a first sliding block, and the first sliding block is slidably matched with the first sliding groove along the first direction.

6. The noise reduction device according to claim 5, characterized in that: Two first sliding blocks are provided on the first plate, and two first sliding grooves are provided on each second plate; The two first sliding blocks are symmetrically arranged about the midline of the first plate in the third direction, and the two first sliding grooves in the same second plate are symmetrically arranged about the midline of the second plate; The third direction is perpendicular to both the first direction and the second direction.

7. The noise reduction device according to claim 4, characterized in that: One of the second plate and the first partition is provided with a second sliding groove, and the other is provided with a second sliding block, and the second sliding block is slidably fitted in the second sliding groove along the second direction.

8. The noise reduction device according to any one of claims 3 to 7, characterized in that: The noise reduction device further includes an adjustment mechanism configured to drive the first partition plate to move in the first direction and drive the second partition plate to move in the second direction.

9. The noise reduction device according to claim 8, characterized in that: The adjustment mechanism is configured to simultaneously drive the second partition to move along the second direction when driving the first partition to move along the first direction.

10. The noise reduction device according to claim 8, characterized in that: The adjusting mechanism is configured to simultaneously drive the second partition to move toward the first portion during the process of driving the two first partitions toward each other along the first direction; and / or, The adjustment mechanism is configured to synchronously drive the second partition to move in a direction away from the first portion during the process of driving the two first partitions to move away from each other in the first direction.

11. The noise reduction device according to claim 8, characterized in that: The adjustment mechanism includes at least two articulated arms; One end of the articulated arm is hinged to the corresponding first partition, and the other end of the articulated arm is hinged to the second partition.

12. The noise reduction device according to any one of claims 3 to 7, characterized in that: The noise reduction device further includes a locking member; The locking member is provided on the second partition. The first partition is provided with a plurality of matching portions spaced apart along the second direction. The locking member can be unlockably connected to any of the matching portions.

13. The noise reduction device according to claim 12, characterized in that: The matching portion includes a card slot; The locking member includes an elastic clamping member, one end of which is hinged to the second partition plate, and the other end of which is detachably clamped to the clamping slot.

14. The noise reduction device according to any one of claims 3 to 7, characterized in that: The noise reduction device further includes an operating rod extending along the first direction, one end of the operating rod is connected to the second partition plate, and the other end of the operating rod is provided with an operating portion.

15. The noise reduction device according to any one of claims 1 to 7, characterized in that: The housing body further comprises a first portion, two first side portions and two second side portions; The two first side portions are arranged at intervals along the first direction, and the two second side portions are arranged at intervals along the third direction. The two first side portions and the two second side portions are respectively connected to the first portion to enclose a shell with an opening at one end located in the second direction, and the connection port is set in the first portion.

16. The noise reduction device according to any one of claims 1 to 7, characterized in that: The noise reduction device further includes a connecting pipe, one end of the neck pipe is connected to the connecting port, and the other end of the neck pipe is communicated with the exhaust pipe through the connecting pipe.

17. An air conditioner outdoor unit, characterized in that: comprising a compressor and a noise reduction device according to any one of claims 1 to 16; The connection port of the noise reduction device is communicated with the exhaust pipe of the compressor.

18. An air conditioning device, characterized in that: Including the air conditioner outdoor unit according to claim 17.

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