Scroll compressor

Abstract

The invention provides a scroll compressor. The scroll compressor includes: a casing; the scroll plate assembly is arranged in the machine shell, the scroll plate assembly comprises a static scroll plate and a dynamic scroll plate which are matched with each other, the static scroll plate is provided with an exhaust hole, an exhaust part and a first silencing cavity, and at least one part of the first silencing cavity is located on an exhaust path of the exhaust part and communicates with the exhaust part; the silencing structure is located above the static scroll plate, and a second silencing cavity is defined by the silencing structure and the static scroll plate; wherein the exhaust hole and the exhaust part are both communicated with the second silencing cavity, gas generated by the scroll plate assembly sequentially passes through the exhaust hole and the second silencing cavity to enter the exhaust part, and at least one part of gas entering the exhaust part enters the first silencing cavity to be subjected to silencing and then continues to flow through the exhaust part to be exhausted. The scroll compressor effectively solves the problem that in the prior art, the exhaust noise of a scroll compressor is large, and the use experience of a user is affected.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and more particularly, to a scroll compressor. Background Art

[0002] Currently, in the field of high-pressure chamber scroll compressors, the scroll compressor in the prior art usually sets a muffler at the upper end of the stationary scroll plate, and weakens part of the exhaust pulsation noise through the inner cavity structure of the muffler. Specifically, after the high-pressure gas is discharged from the stationary scroll plate, it is directly discharged from the exhaust port of the muffler after the silencing effect of the muffler.

[0003] However, the above exhaust and silencing methods in the scroll compressor result in limited silencing effect of the muffler, and the noise generated during the operation of the scroll compressor still affects the user experience. Summary of the Invention

[0004] The main object of the present invention is to provide a scroll compressor to solve the problem that the exhaust noise of the scroll compressor in the prior art is relatively large and affects the user experience.

[0005] To achieve the above object, the present invention provides a scroll compressor, including: a housing; a scroll disk assembly disposed in the housing, the scroll disk assembly includes a stationary scroll disk and a moving scroll disk that cooperate with each other, the stationary scroll disk has an exhaust hole, an exhaust portion, and a first silencing cavity, at least a part of the first silencing cavity is located on the exhaust path of the exhaust portion and communicates with the exhaust portion; a silencing structure located above the stationary scroll disk, the silencing structure and the stationary scroll disk surround to form a second silencing cavity; wherein, the exhaust hole and the exhaust portion both communicate with the second silencing cavity, and the gas generated by the scroll disk assembly sequentially enters the exhaust portion through the exhaust hole and the second silencing cavity, at least a part of the gas entering the exhaust portion enters the first silencing cavity for silencing and then continues to flow through the exhaust portion and is discharged.

[0006] Further, a first groove or a blind hole is provided on the upper surface of the stationary scroll disk, and the silencing structure includes: a top plate having an enthalpy-increasing tube mounting hole; a surrounding plate connected to the plate surface of the top plate; a shielding plate connected to the surrounding plate and disposed opposite to the top plate, the shielding plate is used to shield at least part of the first groove or the blind hole to surround and form the first silencing cavity.

[0007] Further, the scroll compressor further includes: a transition concave portion provided on the stationary scroll disk and / or the silencing structure, and the exhaust portion communicates with the first silencing cavity through the transition concave portion.

[0008] Further, the transition concave portion is a second groove, the groove depth H1 of the first groove is greater than the groove depth H2 of the second groove; and / or, the exhaust portion is a third groove, the groove depth H3 of the third groove is greater than or equal to the groove depth H2 of the second groove; and / or, the groove depth H3 of the third groove is less than or equal to the groove depth H1 of the first groove.

[0009] Furthermore, both the third groove and the exhaust hole are provided on the upper surface of the stationary scroll plate. There is a preset distance between the first end of the third groove and the exhaust hole, and the second end of the third groove is an open end; wherein, the connection position between the transition recess and the third groove is located between the first end and the second end of the third groove.

[0010] Furthermore, there is a first distance between the connection position between the transition recess and the third groove and the first end of the third groove, and a second distance between the connection position between the transition recess and the third groove and the second end of the third groove, and the first distance is greater than the second distance.

[0011] Furthermore, the groove width of the second groove is smaller than that of the third groove; and / or, along the direction from the transition recess to the first sound-absorbing cavity, the cross-sectional area of the first sound-absorbing cavity first increases and then decreases.

[0012] Furthermore, the upper surface of the stationary scroll plate has a fastening area to connect the stationary scroll plate and the sound-absorbing structure by passing a fastener through the fastening area and the sound-absorbing structure, and the fastening area, the exhaust part and the first sound-absorbing cavity are arranged at intervals.

[0013] Furthermore, there is one exhaust part and one first sound-absorbing cavity; or, there are multiple first sound-absorbing cavities, and the multiple first sound-absorbing cavities are arranged at intervals along the extending direction of the exhaust part; or, there are multiple exhaust parts and one first sound-absorbing cavity, and the first sound-absorbing cavity communicates with at least one exhaust part; or, there are multiple first sound-absorbing cavities, and the multiple first sound-absorbing cavities are arranged in one-to-one correspondence with the multiple exhaust parts.

[0014] Furthermore, there are multiple first sound-absorbing cavities, and the inner cavity volumes and / or cross-sectional areas of at least two first sound-absorbing cavities are different.

[0015] Furthermore, there are multiple exhaust parts, and the exhaust volumes and / or exhaust speeds of at least two exhaust parts are different.

[0016] Applying the technical solution of the present invention, a scroll compressor includes a housing, a scroll disk assembly, and a sound-absorbing structure. The scroll disk assembly is disposed within the housing. The scroll disk assembly includes a stationary scroll disk and a rotating scroll disk that cooperate with each other. The stationary scroll disk has an exhaust hole, an exhaust portion, and a first sound-absorbing cavity. At least a part of the first sound-absorbing cavity is located on the exhaust path of the exhaust portion and communicates with the exhaust portion. The sound-absorbing structure is located above the stationary scroll disk, and the sound-absorbing structure and the stationary scroll disk surround to form a second sound-absorbing cavity. Among them, both the exhaust hole and the exhaust portion communicate with the second sound-absorbing cavity. The gas generated by the scroll disk assembly sequentially enters the exhaust portion through the exhaust hole and the second sound-absorbing cavity. At least a part of the gas entering the exhaust portion enters the first sound-absorbing cavity for sound absorption and then continues to flow through the exhaust portion and is discharged. In this way, by providing a first sound-absorbing cavity on the stationary scroll disk and a second sound-absorbing cavity above the stationary scroll disk, a dual sound-absorbing structure is constructed. The gas must pass through these two sound-absorbing barriers before being discharged, ensuring a multi-level attenuation of the exhaust noise, and thus solving the problem in the prior art that the exhaust noise of the scroll compressor is relatively large and affects the user experience. At the same time, the exhaust hole is connected to the second sound-absorbing cavity, so that when the high-pressure gas leaves the stationary scroll disk through the exhaust hole, it immediately enters the second sound-absorbing cavity for the first sound-absorbing treatment. After that, the gas enters the exhaust portion. This path design prolongs the residence time of the gas in the sound-absorbing structure and enhances the sound-absorbing effect. When the gas passes through the exhaust portion, if the sound wave frequency is close to the natural frequency of the first sound-absorbing cavity, strong resonance will occur in the cavity, and the sound energy will be consumed through the friction and damping effects between gas molecules, achieving effective noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0018] Figure 1 FIG. shows a partial three-dimensional structural schematic diagram of an embodiment of a scroll compressor according to the present invention;

[0019] Figure 2 FIG. shows Figure 1 a partial cross-sectional view of the scroll compressor in

[0020] Figure 3 FIG. shows Figure 1 a three-dimensional structural schematic diagram of the stationary scroll disk of the scroll compressor in

[0021] Figure 4 FIG. shows Figure 3 an enlarged schematic view of the rotation at position A of the stationary scroll disk in

[0022] Figure 5 FIG. shows Figure 1 a three-dimensional structural schematic diagram of the sound-absorbing structure of the scroll compressor in

[0023] Among them, the above-mentioned drawings include the following reference numerals:

[0024] 10. Housing; 11. Shell; 12. Upper cover;

[0025] 20. Static scroll plate; 21. Exhaust hole; 22. Exhaust part; 221. Open end; 23. First sound-absorbing cavity; 24. Exhaust through groove; 25. Suction pipe connection port; 26. Enthalpy-increasing pipe connection port;

[0026] 30. Sound-absorbing structure; 31. Second sound-absorbing cavity; 32. Top plate; 321. Enthalpy-increasing pipe installation hole; 33. Enclosing plate; 34. Baffle plate;

[0027] 40. Transition concave part; 50. Suction pipe; 60. Enthalpy-increasing pipe. Specific embodiments

[0028] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0029] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0030] In the present invention, unless otherwise stated, the orientation terms such as "upper, lower" are usually in the direction shown in the drawings, or in the vertical, perpendicular or gravitational direction; similarly, for the sake of easy understanding and description, "left, right" are usually in the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contour of each component itself, but the above orientation terms do not limit the present invention.

[0031] In order to solve the problem that the exhaust noise of the scroll compressor in the prior art is relatively large and affects the user experience, the present application provides a scroll compressor.

[0032] Such as Figures 1 to 5As shown in the figure, the scroll compressor includes a housing 10, a scroll disk assembly, and a silencing structure 30. The scroll disk assembly is disposed within the housing 10 and includes a stationary scroll disk 20 and a rotating scroll disk that cooperate with each other. The stationary scroll disk 20 has an exhaust hole 21, an exhaust portion 22, and a first silencing cavity 23. At least a portion of the first silencing cavity 23 is located on the exhaust path of the exhaust portion 22 and is in communication with the exhaust portion 22. The silencing structure 30 is located above the stationary scroll disk 20, and the silencing structure 30 and the stationary scroll disk 20 surround and form a second silencing cavity 31. Among them, both the exhaust hole 21 and the exhaust portion 22 are in communication with the second silencing cavity 31. The gas generated by the scroll disk assembly sequentially enters the exhaust portion 22 through the exhaust hole 21 and the second silencing cavity 31. At least a portion of the gas entering the exhaust portion 22 enters the first silencing cavity 23 for silencing and then continues to flow through the exhaust portion 22 and is discharged.

[0033] Applying the technical solution of this embodiment, by providing a first silencing cavity 23 on the stationary scroll disk 20 and a second silencing cavity 31 above the stationary scroll disk 20, a double silencing structure is constructed. The gas must pass through these two silencing barriers before being discharged, ensuring a multi-level attenuation of the exhaust noise, thereby solving the problem in the prior art that the exhaust noise of the scroll compressor is relatively large and affects the user experience. At the same time, the exhaust hole 21 is connected to the second silencing cavity 31, so that when the high-pressure gas leaves the stationary scroll disk 20 through the exhaust hole, it immediately enters the second silencing cavity 31 for the first silencing treatment. After that, the gas enters the exhaust portion 22. This path design prolongs the residence time of the gas in the silencing structure and enhances the silencing effect; when the gas passes through the exhaust portion 22, if the sound wave frequency is close to the natural frequency of the first silencing cavity 23, strong resonance will occur in the cavity, and the sound energy will be consumed through the friction and damping effects between gas molecules, achieving effective noise reduction.

[0034] In this embodiment, by providing an exhaust portion 22 on the stationary scroll disk 20 and adopting a fully enclosed design for the silencing structure 30, the flow path of the exhaust gas in the silencing structure 30 can be changed, increasing the sound-absorbing frequency band of the scroll compressor and reducing the exhaust noise.

[0035] As Figures 3 to 5As shown, the upper surface of the stationary scroll disk 20 is provided with a first groove or blind hole. The sound insulation structure 30 includes a top plate 32, a surrounding plate 33, and a shielding plate 34. Among them, the top plate 32 has an enthalpy-increasing tube installation hole 321, and the surrounding plate 33 is connected to the plate surface of the top plate 32. The shielding plate 34 is connected to the surrounding plate 33 and is disposed opposite to the top plate 32. The shielding plate 34 is used to shield at least part of the first groove or blind hole to form a first sound insulation cavity 23 therearound. In this way, by cooperating the first groove or blind hole with the shielding plate 34 to form the first sound insulation cavity 23, the formation method of the first sound insulation cavity 23 is made easier, reducing the processing cost of the scroll compressor and the labor intensity of the staff. At the same time, the above formation method of the first sound insulation cavity 23 can utilize the resonance principle. By adjusting the size and shape of the cavity, the frequency of the compressor exhaust pulsation can be precisely matched to achieve the best sound insulation effect.

[0036] In this embodiment, the upper surface of the stationary scroll disk 20 is provided with a first groove, and the first recess and the shielding plate 34 form a first sound insulation cavity 23 therearound. The top plate 32 and the surrounding plate 33 are perpendicularly arranged, and the top plate 32 and the shielding plate 34 are parallelly arranged, so that the sound insulation structure 30 can be fully attached to the upper surface of the stationary scroll disk 20 to prevent gas from being directly discharged without sound insulation, increasing the noise of the scroll compressor.

[0037] Specifically, compared with the scroll compressor in the prior art, in this embodiment, the exhaust port on the sound insulation structure 30 is cancelled, and a plurality of first grooves are opened on the upper surface of the stationary scroll disk 20. A first sound insulation cavity 23 is arranged on the path of the first groove, and the air flow is discharged from the first groove after being sound-insulated by the first sound insulation cavity 23. Passing through the first sound insulation cavity 23 on the path increases the sound insulation frequency band of the scroll compressor and reduces the exhaust noise.

[0038] As Figure 3 and Figure 4 shown, the scroll compressor further includes a transition recess 40. Among them, the transition recess 40 is arranged on the stationary scroll disk 20 and / or the sound insulation structure 30, and the exhaust part 22 is communicated with the first sound insulation cavity 23 through the transition recess 40. In this way, the transition recess 40, as a bridge connecting the exhaust part 22 and the first sound insulation cavity 23, can provide a smoother air flow channel to reduce the turbulence and eddy current in the gas flow, thereby reducing the flow resistance and friction sound, ensuring that the high-pressure gas can be more smooth and quiet during the process of entering the first sound insulation cavity 23 from the exhaust part 22. At the same time, the transition recess 40 not only improves the smoothness of the air flow but also indirectly increases the residence time of the high-pressure gas in the sound insulation cavity. By extending the air flow path, the gas has more time to interact with the air in the first sound insulation cavity 23, thereby further reducing the noise by using the resonance sound insulation principle, especially the effect in the medium and high frequency bands is more significant.

[0039] In this embodiment, the gas in the transition recess 40 makes a reciprocating motion similar to that of a piston under the action of pressure fluctuations, while the gas in the first sound-absorbing cavity 23 is similar to a spring. Due to the friction and damping effects during gas vibration, part of the sound energy is converted into heat energy and dissipated, and the corresponding pressure fluctuations become relatively gentle, and the airflow noise is reduced accordingly. Among them, since the gas vibration is relatively strong and the sound absorption effect is obvious when the sound wave frequency is close to the natural frequency of the resonator, the first sound-absorbing cavity 23 has strong frequency selectivity.

[0040] It should be noted that there are two key parameters that mainly affect the sound-absorbing effect of the first sound-absorbing cavity 23: the sound-absorbing frequency (f) and the sound propagation rate (c0). The design of the first sound-absorbing cavity 23 mainly adjusts the sound-absorbing frequency and the sound propagation rate by adjusting relevant dimensional parameters to achieve the best noise reduction effect.

[0041] Optionally, the transition recess 40 is a second groove, and the groove depth H1 of the first groove is greater than the groove depth H2 of the second groove; and / or, the exhaust part 22 is a third groove, and the groove depth H3 of the third groove is greater than or equal to the groove depth H2 of the second groove; and / or, the groove depth H3 of the third groove is less than or equal to the groove depth H1 of the first groove. In this way, the groove designs with different depths can attenuate sound waves of different frequencies specifically. The deep first groove can effectively attenuate low-frequency noise due to its large volume and long airflow path, while the smaller depths of the second groove and the third groove are suitable for attenuating medium and high-frequency noise. This hierarchical design can achieve the control of noise in a wider frequency band and improve the versatility and efficiency of the sound-absorbing structure. At the same time, by adjusting the groove depth, the flow characteristics of the airflow can be optimized, the flow resistance can be reduced, and thus the energy consumption can be reduced. In particular, when the groove depth H3 of the third groove is less than or equal to the groove depth H1 of the first groove, the continuity and smoothness of the airflow can be ensured, and the waste of energy in unnecessary resistance can be avoided, improving the overall operating efficiency of the scroll compressor.

[0042] In this embodiment, the transition recess 40 is a second groove, the groove depth H1 of the first groove is greater than the groove depth H2 of the second groove, the exhaust part 22 is a third groove, and the groove depth H3 of the third groove is greater than or equal to the groove depth H2 of the second groove. The groove depth H3 of the third groove is less than or equal to the groove depth H1 of the first groove.

[0043] Such as Figure 3As shown, the third groove and the exhaust hole 21 are both provided on the upper surface of the stationary scroll 20. There is a preset distance between the first end of the third groove and the exhaust hole 21, and the second end of the third groove is an open end 221; wherein, the connection position between the transition recess 40 and the third groove is located between the first end and the second end of the third groove. In this way, the preset distance between the third groove and the exhaust hole 21 and its specific connection position with the transition recess 40 constitute a fine-tuning system, which can precisely control the gas flow path and speed, thereby affecting the propagation and attenuation characteristics of sound waves, and achieving more effective control of noise in a specific frequency band. At the same time, as a guiding path for the air flow from the exhaust hole 21 to the transition recess 40, the design of the third groove helps to guide the air flow into the sound-absorbing structure smoothly, reducing turbulence and impact when entering the transition recess, thereby reducing the generation of noise.

[0044] In this embodiment, there is a first distance between the connection position of the transition recess 40 and the third groove and the first end of the third groove, and a second distance between the connection position of the transition recess 40 and the third groove and the second end of the third groove, and the first distance is greater than the second distance. In this way, due to the first distance being greater than the second distance, during the process of the air flow entering the third groove and passing through the transition recess 40, it will experience a natural change in flow velocity and pressure gradient, thereby promoting the more uniform distribution of the air flow in the third groove, reducing the phenomenon of local high-speed flow and pressure concentration, and thus reducing the noise caused by irregular air flow. At the same time, the asymmetric connection position helps the gas exchange between the third groove and the transition recess 40 to be more orderly, avoiding the increase in noise caused by direct and rapid impact. Among them, before the gas enters the transition recess 40 through the shorter path (the second distance), it has been pre-diffused and sound-absorbed in the longer path (the first distance), greatly improving the noise reduction efficiency of the entire sound-absorbing system.

[0045] Specifically, a first sound-absorbing cavity 23 is provided at a position on the first groove close to the air outlet. The high-pressure gas generated by the cooperation of the stationary scroll 20 and the moving scroll passes through the second sound-absorbing cavity 31 to eliminate large exhaust pulsation noise and then flows through the first sound-absorbing cavity 23, generates a resonance exhaust silencing effect and then is discharged from the first groove, and then enters the middle cavity of the housing through the exhaust through groove 24 on the stationary scroll 20, and finally is discharged from the exhaust pipe on the housing to the scroll compressor.

[0046] Optionally, the groove width of the second groove is smaller than that of the third groove; and / or, in the direction from the transition recess 40 to the first sound absorption cavity 23, the cross-sectional area of the first sound absorption cavity 23 first increases and then decreases. In this way, the groove width of the second groove being smaller than that of the third groove can achieve hierarchical attenuation of noises of different frequencies. The second groove is mainly used for eliminating high-frequency noises, while the third groove, due to its larger groove width, can more effectively process medium and low-frequency noises, so that the sound absorption spectrum is wider and the sound absorption effect is more comprehensive. At the same time, the larger groove width of the third groove allows more gas to pass through, which helps to improve the uniformity of gas flow and reduce turbulence, thereby reducing the noise during the flow process. In addition, the first increase and then decrease in the cross-sectional area of the first sound absorption cavity 23 forms an effect similar to that of a Venturi tube, which can further smooth the air flow, reduce the air flow velocity, and reduce the noise source.

[0047] In this embodiment, the groove width of the second groove is smaller than that of the third groove. In the direction from the transition recess 40 to the first sound absorption cavity 23, the cross-sectional area of the first sound absorption cavity 23 first increases and then decreases. In this way, the design of the change in the cross-sectional area of the first sound absorption cavity 23 can increase the residence time of the air flow, and utilize the elastic vibration and friction effect of the gas in the cavity to absorb and convert sound energy, thereby enhancing the sound absorption effect.

[0048] In this embodiment, the upper surface of the stationary scroll disk 20 has a fastening area, so as to connect the stationary scroll disk 20 and the sound absorption structure 30 by passing a fastener through the fastening area and the sound absorption structure 30. The fastening area, the exhaust part 22, and the first sound absorption cavity 23 are arranged at intervals. In this way, by specifying the fastening area on the upper surface of the stationary scroll disk 20, it can be ensured that the installation position of the sound absorption structure 30 is accurate and error-free, avoiding problems such as poor contact between components or leakage of the air flow channel caused by assembly deviation. Moreover, the use of the fastener strengthens the physical connection between the two components, improving the rigidity and operating stability of the overall structure. At the same time, the fastening area, the exhaust part 22, and the first sound absorption cavity 23 are arranged at intervals, avoiding mutual interference between functional components, especially the overlap of the exhaust path and the mechanical fixing path, ensuring the unobstructed air flow channel, and being beneficial to the free flow and resonance sound absorption of the gas in the sound absorption structure 30.

[0049] Optionally, there is one exhaust part 22 and one first sound absorption cavity 23; alternatively, there are multiple first sound absorption cavities 23, and the multiple first sound absorption cavities 23 are arranged at intervals along the extension direction of the exhaust part 22; alternatively, there are multiple exhaust parts 22 and one first sound absorption cavity 23, and the first sound absorption cavity 23 communicates with at least one exhaust part 22; alternatively, there are multiple first sound absorption cavities 23, and the multiple first sound absorption cavities 23 are arranged in one-to-one correspondence with the multiple exhaust parts 22. In this way, when there is one exhaust part 22 and also one first sound absorption cavity 23, this design ensures that the air flow passes through a single sound absorption path when discharging from the compressor, and the size and shape of the sound absorption cavity can be optimized specifically to precisely control the noise within a specific frequency range and improve the sound absorption efficiency; when there is one exhaust part 22 and multiple first sound absorption cavities 23, and these sound absorption cavities are arranged at intervals along the extension direction of the exhaust part 22, it can disperse the air flow, reduce the pressure and air flow velocity of a single cavity, reduce turbulence and air flow impact, thereby reducing the generation of noise and improving the uniformity and efficiency of gas flow; when there are multiple exhaust parts 22 and one first sound absorption cavity 23, it allows more air flow to enter the single sound absorption cavity simultaneously. This layout can adapt to the conditions of high-pressure or high-speed gas flow. By increasing the number of exhaust paths and dispersing the gas pressure, the noise can be effectively controlled; when there are multiple first sound absorption cavities 23 and they are arranged in one-to-one correspondence with the multiple exhaust parts 22, this design provides greater design flexibility, and the size and position of each sound absorption cavity can be adjusted according to different noise control requirements and gas flow characteristics to achieve the optimal sound absorption effect and system performance.

[0050] In this embodiment, there are three exhaust parts 22, and the three exhaust parts 22 are arranged at intervals around the exhaust hole 21.

[0051] It should be noted that the number of the exhaust parts 22 is not limited to this and can be adjusted according to the working conditions and usage requirements. Optionally, the number of the exhaust parts 22 is two, or four, or five, or six, or more.

[0052] In this embodiment, there are three first sound absorption cavities 23, and the three first sound absorption cavities 23 are arranged in one-to-one correspondence with the three exhaust parts 22.

[0053] It should be noted that the number of the first sound absorption cavities 23 is not limited to this and can be adjusted according to the working conditions and usage requirements. Optionally, the number of the first sound absorption cavities 23 is two, or four, or five, or six, or more.

[0054] Optionally, there are multiple first sound deadening cavities 23, and the internal cavity volumes and / or cross-sectional areas of at least two first sound deadening cavities 23 are different. In this way, sound deadening cavities with different volumes and cross-sectional areas can effectively attenuate sound waves of different frequencies. Since the attenuation of sound waves is closely related to the physical characteristics of the cavity, the above setting enables the scroll compressor to handle a wide range of noise spectra, not just for a specific frequency, but to achieve omnidirectional noise control from low frequency to high frequency. At the same time, by adjusting the internal cavity volume and cross-sectional area, the gas flow path can be optimized, reducing turbulence and eddy currents, and improving the smoothness and efficiency of gas flow. In addition, sound deadening cavities of different sizes can also perform dynamic compensation according to changes in gas flow rate and pressure, reducing additional noise caused by uneven air flow.

[0055] Optionally, there are multiple exhaust parts 22, and the exhaust volumes and / or exhaust speeds of at least two exhaust parts 22 are different. In this way, by setting exhaust parts 22 with different exhaust volumes and speeds, the air flow inside the scroll compressor can be better controlled and distributed, achieving an even distribution of pressure. This can not only reduce the air flow impact noise caused by local high pressure or sudden release, but also improve the smoothness of gas flow and reduce energy loss. At the same time, exhaust parts with different exhaust volumes and speeds can specifically eliminate noise at specific frequencies. Exhaust parts with high-speed and large-volume gas emissions are suitable for handling high-intensity noise, while exhaust parts with slow-speed and small-volume gas emissions are more suitable for attenuating low-frequency noise, achieving multi-level and wide-band control of noise.

[0056] As Figure 2 shown, the housing 10 includes a housing body 11 and an upper cover 12, and the upper cover 12 is covered on the housing body 11 to form the housing 10.

[0057] As Figure 1 and Figure 2 shown, the scroll compressor further includes a suction pipe 50 and an enthalpy-increasing pipe 60. Among them, both the suction pipe 50 and the enthalpy-increasing pipe 60 pass through the upper cover 12.

[0058] As Figure 3 shown, the stationary scroll disk 20 has a suction pipe connection port 25 and an enthalpy-increasing pipe connection port 26. Among them, the suction pipe 50 passes through the suction pipe connection port 25, and the enthalpy-increasing pipe 60 passes through the enthalpy-increasing pipe connection port 26.

[0059] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0060] The scroll compressor includes a housing, a scroll disk assembly, and a sound absorption structure. The scroll disk assembly is disposed within the housing. The scroll disk assembly includes a stationary scroll disk and a moving scroll disk that cooperate with each other. The stationary scroll disk has an exhaust hole, an exhaust portion, and a first sound absorption cavity. At least a part of the first sound absorption cavity is located on the exhaust path of the exhaust portion and is in communication with the exhaust portion. The sound absorption structure is located above the stationary scroll disk, and the sound absorption structure and the stationary scroll disk surround to form a second sound absorption cavity. Among them, both the exhaust hole and the exhaust portion are in communication with the second sound absorption cavity. The gas generated by the scroll disk assembly sequentially enters the exhaust portion through the exhaust hole and the second sound absorption cavity. At least a part of the gas entering the exhaust portion enters the first sound absorption cavity for sound absorption and then continues to flow through the exhaust portion and is discharged. In this way, by providing a first sound absorption cavity on the stationary scroll disk and a second sound absorption cavity above the stationary scroll disk, a dual sound absorption structure is constructed. The gas must pass through these two sound absorption barriers before being discharged, ensuring a multi-level attenuation of the exhaust noise, and thus solving the problem in the prior art that the exhaust noise of the scroll compressor is relatively large and affects the user experience. At the same time, the exhaust hole is connected to the second sound absorption cavity, so that when the high-pressure gas leaves the stationary scroll disk through the exhaust hole, it immediately enters the second sound absorption cavity for the first sound absorption treatment. After that, the gas enters the exhaust portion. This path design extends the residence time of the gas in the sound absorption structure and enhances the sound absorption effect. When the gas passes through the exhaust portion, if the sound wave frequency is close to the natural frequency of the first sound absorption cavity, strong resonance will occur in the cavity, and the sound energy will be consumed through the friction and damping effects between gas molecules, achieving effective noise reduction.

[0061] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0062] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A scroll compressor, characterized in that, Comprising: A housing (10); A scroll disk assembly disposed within the housing (10), the scroll disk assembly including a stationary scroll disk (20) and a moving scroll disk that cooperate with each other. The stationary scroll disk (20) has an exhaust hole (21), an exhaust portion (22), and a first sound-absorbing cavity (23). At least a portion of the first sound-absorbing cavity (23) is located on the exhaust path of the exhaust portion (22) and is in communication with the exhaust portion (22); A sound-absorbing structure (30) located above the stationary scroll disk (20), the sound-absorbing structure (30) and the stationary scroll disk (20) surrounding to form a second sound-absorbing cavity (31); Wherein, the exhaust hole (21) and the exhaust portion (22) are both in communication with the second sound-absorbing cavity (31). The gas generated by the scroll disk assembly sequentially enters the exhaust portion (22) via the exhaust hole (21) and the second sound-absorbing cavity (31). At least a portion of the gas entering the exhaust portion (22) enters the first sound-absorbing cavity (23) for sound absorption and then continues to flow through the exhaust portion (22) and is discharged.

2. The scroll compressor according to claim 1, wherein A first groove or blind hole is provided on the upper surface of the stationary scroll disk (20). The sound-absorbing structure (30) includes: A top plate (32) having an enthalpy-increasing tube mounting hole (321); A surrounding plate (33) connected to the plate surface of the top plate (32); A shielding plate (34) connected to the surrounding plate (33) and disposed opposite to the top plate (32). The shielding plate (34) is used to shield at least a portion of the first groove or blind hole to form the first sound-absorbing cavity (23) by surrounding.

3. The scroll compressor according to claim 2, wherein The scroll compressor further includes: A transition recess (40) provided on the stationary scroll disk (20) and / or the sound-absorbing structure (30). The exhaust portion (22) is in communication with the first sound-absorbing cavity (23) through the transition recess (40).

4. The scroll compressor according to claim 3, wherein The transition recess (40) is a second groove, and the groove depth H1 of the first groove is greater than the groove depth H2 of the second groove; and / or, The exhaust portion (22) is a third groove, and the groove depth H3 of the third groove is greater than or equal to the groove depth H2 of the second groove; and / or, The groove depth H3 of the third groove is less than or equal to the groove depth H1 of the first groove.

5. The scroll compressor according to claim 4, wherein, Both the third groove and the exhaust hole (21) are provided on the upper surface of the stationary scroll disk (20). A preset distance is provided between the first end of the third groove and the exhaust hole (21). The second end of the third groove is an open end (221); wherein, the communication position of the transition recess (40) and the third groove is located between the first end and the second end of the third groove.

6. The scroll compressor according to claim 4, characterized in that, The communication position of the transition recess (40) and the third groove has a first distance from the first end of the third groove, and the communication position of the transition recess (40) and the third groove has a second distance from the second end of the third groove. The first distance is greater than the second distance.

7. The scroll compressor according to claim 4, wherein, The groove width of the second groove is smaller than that of the third groove; and / or, in the direction from the transition recess (40) to the first sound absorption cavity (23), the cross-sectional area of the first sound absorption cavity (23) first increases and then decreases.

8. The scroll compressor according to claim 1, wherein, The upper surface of the stationary scroll plate (20) has a fastening area, and the stationary scroll plate (20) and the sound absorption structure (30) are connected by passing a fastener through the fastening area and the sound absorption structure (30). The fastening area, the exhaust part (22), and the first sound absorption cavity (23) are arranged at intervals.

9. The scroll compressor according to claim 1, wherein There is one exhaust part (22) and one first sound absorption cavity (23); or, there are multiple first sound absorption cavities (23), and the multiple first sound absorption cavities (23) are arranged at intervals along the extension direction of the exhaust part (22); or, There are multiple exhaust parts (22) and one first sound absorption cavity (23), and the first sound absorption cavity (23) communicates with at least one of the exhaust parts (22); or, there are multiple first sound absorption cavities (23), and the multiple first sound absorption cavities (23) are arranged in one-to-one correspondence with the multiple exhaust parts (22).

10. The scroll compressor according to claim 1, wherein, There are multiple first sound absorption cavities (23), and the inner cavity volumes and / or cross-sectional areas of at least two first sound absorption cavities (23) are different.

11. The scroll compressor according to claim 1, characterized in that, There are multiple exhaust parts (22), and the exhaust volumes and / or exhaust speeds of at least two exhaust parts (22) are different.

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