Pumping structure for improving noise of compressor

Abstract

The utility model relates to the technical field of compressors, and discloses a pumping structure for improving compressor noise, which comprises a support, a first silencing cover and a second silencing cover, the support comprises a first surface and a second surface which are arranged back to back, the support is provided with an exhaust hole and a circulation hole which penetrate through the first surface and the second surface, and the first silencing cover and the second silencing cover are arranged on the first surface and the second surface. The first silencing cover is connected to the first surface, the exhaust hole and the circulation hole are both communicated with the interior of the first silencing cover, the second silencing cover is connected to the second surface, and the circulation hole is communicated with the interior of the second silencing cover; the utility model has the technical effects that the silencing space is enlarged, the noise transmission is reduced, the effect of reducing the slapping sound of the valve plate is achieved, and the ear feeling is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and particularly relates to a pump structure for improving the noise of a compressor. Background Art

[0002] Nowadays, as the impact of the greenhouse effect on the earth becomes more and more serious and the environmental temperature of the earth is getting higher and higher, almost every household installs air conditioners to relieve the boredom brought by hot air. With the continuous improvement of people's living standards, the requirements for air conditioners are gradually strengthened in terms of experience, especially the requirements for the noise of air conditioners are getting higher and higher.

[0003] The noise sources of air conditioners can be roughly decomposed into the fan noise in the hanging machine and the noise of the compressor. The fan noise can generally be optimized by reducing the fan speed and adjusting the fan size. However, the countermeasures for improving the noise of the compressor are relatively limited because there are many noise sources in the compressor, such as motor noise, beat frequency noise, valve plate noise, blade impact noise, and so on.

[0004] When the compressor is running, a valve plate slapping sound is generated during the opening and closing process of the upper / lower support valve plate, and this noise is the main noise source of the compressor. The existing upper / lower support structure is single, and the noise reduction method can only reduce the noise by adding a sound insulation cover on the upper / lower support, but the sound insulation effect is limited. Summary of the Utility Model

[0005] In order to solve the deficiencies of the existing technology, the utility model provides a pump structure for improving the noise of a compressor, which realizes the expansion of the sound insulation space, reduces the noise transmission, achieves the effect of reducing the valve plate slapping sound, and effectively improves the ear feeling.

[0006] The technical purpose to be achieved by the utility model is realized through the following technical solutions:

[0007] The utility model provides a pump structure for improving the noise of a compressor, including a support, a first sound insulation cover, and a second sound insulation cover;

[0008] The support includes a first surface and a second surface arranged opposite to each other, and the support is provided with an exhaust hole and a circulation hole penetrating through the first surface and the second surface;

[0009] The first sound insulation cover is connected to the first surface, and both the exhaust hole and the circulation hole are communicated with the inside of the first sound insulation cover;

[0010] The second sound insulation cover is connected to the second surface, and the circulation hole is communicated with the inside of the second sound insulation cover.

[0011] In some implementation modes, the circulation hole has a first opening formed on the first surface and a second opening formed on the second surface;

[0012] The first opening and the second opening are in a non-aligned relationship, which serves to increase the sound absorption path and achieve the purpose of effectively reducing noise.

[0013] In some implementation manners, the number of the flow holes is two or more, and the compressed gas is dispersed in multiple paths, thereby reducing the noise transmission.

[0014] In some implementation manners, the first sound absorption cover includes a first panel and a first cover body protruding outward from the middle of the first panel;

[0015] The first panel is connected to the first surface, and the exhaust hole and the flow hole communicate with the first cover body. A connection relationship with the support is established through the first panel, and the first cover body plays a role in sound absorption for the compressed gas to achieve the purpose of reducing noise.

[0016] In some implementation manners, a plurality of air outlets are spaced apart on the first cover body, and the sound-absorbed gas is dispersed and discharged through the plurality of air outlets, achieving the functions of reducing noise and reducing the impact force of the compressed gas.

[0017] In some implementation manners, the second sound absorption cover includes a second panel and a second cover body protruding outward from the middle of the second panel;

[0018] The second panel is connected to the second surface, and the flow hole communicates with the second cover body. A connection relationship with the support is established through the second panel, and the second cover body plays a role in sound absorption for the compressed gas to achieve the purpose of reducing noise.

[0019] In some implementation manners, connection holes for positioning and connecting with the second surface are formed on the second panel, which facilitates the alignment connection of the second sound absorption cover and improves the accuracy and convenience of assembly.

[0020] In some implementation manners, a plurality of sound absorption plates are spaced apart inside the second cover body, and the sound absorption plates extend along the axial direction, increasing the refraction and cancellation effect on the compressed gas and improving the noise reduction effect.

[0021] In some implementation manners, a cylinder block is further included;

[0022] The cylinder block is connected to the middle position of the second surface, and the second sound absorption cover is connected to the edge position of the second surface, which can expand the sound absorption space without changing the structure of the existing cylinder block and improve its adaptability.

[0023] In some implementation manners, in the axial direction, the height of the second sound absorption cover is less than the height of the cylinder block, which will not increase the original height of the pump structure and is convenient for adapting to the assembly of existing products.

[0024] In summary, the present utility model has at least the following advantages:

[0025] A pump structure for improving the noise of a compressor provided by the present utility model is provided with a first sound insulation cover connected to the first surface of the support and a second sound insulation cover connected to the second surface of the support, which expands the sound insulation space, reduces the transmission of noise, achieves the effect of reducing the valve flutter sound and effectively improves the ear feeling; in addition, while expanding the sound insulation space, it can also compress the height of the traditional sound insulation cover, thereby reducing the depth of the rotor hot sleeve and realizing the flat design of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the pump structure provided in Embodiment 1 of the present utility model;

[0027] Figure 2 and Figure 3 is a schematic diagram of the structure of the support in different directions provided in Embodiment 1 of the present utility model;

[0028] Figure 4 is a cross-sectional view of the support provided in Embodiment 1 of the present utility model;

[0029] Figure 5 is a schematic diagram of the structure of the first sound insulation cover provided in Embodiment 2 of the present utility model;

[0030] Figure 6 and Figure 7 is a schematic diagram of the structure of the second sound insulation cover in different directions provided in Embodiment 2 of the present utility model;

[0031] Figure 8 is a schematic diagram of the pump structure provided in Embodiment 3 of the present utility model;

[0032] 100, support; 110, first surface; 120, second surface; 130, exhaust hole; 140, flow hole; 141, first opening; 142, second opening;

[0033] 200, first sound insulation cover; 210, first panel; 220, first cover body; 230, air outlet;

[0034] 300, second sound insulation cover; 310, second panel; 320, second cover body; 330, connection hole; 340, sound insulation board;

[0035] 400, cylinder block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are some, but not all, of the embodiments of the present utility model.

[0037] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0038] Example 1:

[0039] Please refer to Figures 1-4 , a pump structure for improving the noise of a compressor, including a support 100, a first soundproof cover 200, and a second soundproof cover 300.

[0040] Refer to Figure 2 and Figure 3 , the support 100 includes a first surface 110 and a second surface 120 arranged back to back. For example, the support 100 is presented as a circular base structure, usually used for limiting the rotation shaft. An axle sleeve for the rotation shaft to pass through extends outward from the middle position of the first surface 110.

[0041] The support 100 is provided with an exhaust hole 130 and a circulation hole 140 that penetrate the first surface 110 and the second surface 120. The exhaust hole 130 is used for discharging compressed gas, and the circulation hole 140 is used to increase the soundproof path of part of the compressed gas.

[0042] The first soundproof cover 200 is connected to the first surface 110. Both the exhaust hole 130 and the circulation hole 140 are in communication with the inside of the first soundproof cover 200. After the compressed gas is discharged through the exhaust hole 130, part of it undergoes refraction soundproofing inside the first soundproof cover 200, and part enters the circulation hole 140; the second soundproof cover 300 is connected to the second surface 120, and the circulation hole 140 is in communication with the inside of the second soundproof cover 300. Referring to the previous text, it can be seen that the circulation hole 140 is equivalent to connecting the inside of the first soundproof cover 200 and the inside of the second soundproof cover 300. After the compressed gas discharged through the exhaust hole 130, part of it enters the circulation hole 140 and then enters the inside of the second soundproof cover 300 through the circulation hole 140, and undergoes refraction soundproofing inside the second soundproof cover 300.

[0043] As can be seen from the content in the background art, when the compressor is running, a valve plate slapping sound will be generated during the opening and closing process of the valve plate. This noise is the main noise source of the compressor. In terms of the specific structure, an installation groove for installing the valve plate is formed on the first surface 110 of the support 100. The exhaust hole 130 is opened at the bottom of the installation groove, that is, it penetrates the first surface 110 and the second surface 120. One end of the valve plate is fixedly installed in the installation groove, and the other end of the valve plate movably blocks at the exhaust hole 130. When compressed gas is discharged through the exhaust hole 130, an impact force will be generated on the valve plate, causing the valve plate to lift away from the exhaust hole 130. When there is no compressed gas discharged, the valve plate returns to cover the exhaust hole 130 under the action of its own gravity or its own plasticity, thereby generating a slapping sound.

[0044] To address the noise problem caused by the slapping sound, in this embodiment, a first sound-absorbing cover 200 is connected to the first surface 110 of the support 100, a second sound-absorbing cover 300 is connected to the second surface 120 of the support 100, and the exhaust hole 130 is communicated with the inside of the first sound-absorbing cover 200, and the flow hole 140 is communicated with the inside of the first sound-absorbing cover 200 and the inside of the second sound-absorbing cover 300. In this way, when the compressed gas is discharged through the exhaust hole 130, a part of it is refracted and silenced through the inside of the first sound-absorbing cover 200, and a part enters the second sound-absorbing cover 300 through the flow hole 140 for refraction and silencing. Compared with the traditional method of only setting one sound-absorbing cover on the support 100, this embodiment expands the sound-absorbing space, reduces the noise transmission, and achieves the effect of reducing the valve plate slapping sound and the purpose of effectively improving the ear feeling.

[0045] See Figure 4 , in some embodiments, the flow hole 140 has a first opening 141 formed on the first surface 110 and a second opening 142 formed on the second surface 120; the first opening 141 and the second opening 142 are in a non-aligned relationship, achieving the effect of increasing the sound-absorbing path and achieving the purpose of effectively reducing noise.

[0046] For example, the first opening 141 extends obliquely along the first surface 110 towards the second surface 120 until it communicates with the second opening 142. That is, the internal path of the flow-through hole 140 is in an inclined state; or the first opening 141 extends in a curved manner along the first surface 110 towards the second surface 120 until it communicates with the second opening 142. That is, the internal path of the flow-through hole 140 is in a curved state. In this embodiment, there is no specific limitation on the presentation state of the internal path of the flow-through hole 140, and it can be adjusted according to actual needs. Of course, there is also no specific limitation on the caliber size and specific distribution position of the first opening 141 and the second opening 142. Here, the first opening 141 and the second opening 142 are limited to a non-aligned relationship, aiming to increase the sound absorption path. After the compressed gas enters the interior of the flow-through hole 140 through the first opening 141, it enters the interior of the second sound absorption cover 300 after passing through a longer sound absorption path, and then is refracted and offset by the second sound absorption cover 300 to achieve a better sound absorption effect.

[0047] In some embodiments, the number of the flow-through holes 140 is two or more, and the compressed gas is dispersed in multiple paths, thereby reducing noise transmission.

[0048] For example, the number of the flow-through holes 140 is two, and the two flow-through holes 140 are spaced apart. The compressed gas can be dispersed into the interior of the second sound absorption cover 300 through the two flow-through holes 140. Compared with the structural design in which the compressed gas enters the interior of the second sound absorption cover 300 through one flow-through hole 140, this embodiment has the advantage of better noise reduction effect.

[0049] It should be noted that in this embodiment, there is no specific limitation on the number of the flow-through holes 140, and it can also be three or four, etc., and can be adjusted specifically according to actual needs.

[0050] A pump structure for improving the noise of a compressor provided in this embodiment has a first sound absorption cover 200 connected to the first surface 110 of the support 100 and a second sound absorption cover 300 connected to the second surface 120 of the support 100, which expands the sound absorption space and reduces noise transmission; by restricting the first opening 141 and the second opening 142 to be in a non-aligned relationship, after the compressed gas enters the interior of the flow-through hole 140 through the first opening 141, it enters the interior of the second sound absorption cover 300 after passing through a longer sound absorption path, and then is refracted and offset by the second sound absorption cover 300 to achieve a better sound absorption effect.

[0051] Embodiment 2:

[0052] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the pump structure of the present invention. Please refer to Figures 5-7 .

[0053] Refer to Figure 5, in this embodiment, the first sound insulation cover 200 includes a first panel 210 and a first cover body 220 protruding outward from the middle of the first panel 210; the first panel 210 is connected to the first surface 110, the exhaust hole 130 and the circulation hole 140 communicate with the first cover body 220, a connection relationship with the support 100 is established through the first panel 210, and the compressed gas is silenced by the first cover body 220 to achieve the purpose of reducing noise.

[0054] The first panel 210 and the first surface 110 can be connected and fixed by means of bolt locking or snap fastening. In this example, the connection method between the first panel 210 and the first surface 110 is not specifically limited, as long as the connection stability between the first sound insulation cover 200 and the support 100 is ensured.

[0055] The exhaust hole 130 and the circulation hole 140 communicate with the first cover body 220, ensuring that after the compressed gas enters the first cover body 220 through the exhaust hole 130, part of it is silenced under the refraction and cancellation effect of the first cover body 220, and part enters the circulation hole 140 and is then refracted and cancelled by the second sound insulation cover 300.

[0056] In some embodiments, a plurality of air outlets 230 are spaced apart on the first cover body 220, and the silenced gas is dispersed and discharged through the plurality of air outlets 230 to achieve the effects of reducing noise and the impact force of the compressed gas.

[0057] For example, the number of air outlets 230 is two, and the two air outlets 230 are spaced apart on the top wall of the first cover body 220. To improve the sound insulation effect of the first cover body 220, the two air outlets 230 can be arranged as far as possible from the exhaust hole 130, so that the compressed gas is refracted and cancelled by the first cover body 220 first and then transmitted to the two air outlets 230 for discharge.

[0058] It should be noted that in this example, the number, distribution position, size and shape of the air outlets 230 are not specifically limited and can be adjusted according to actual needs.

[0059] See Figure 6 and Figure 7 , in some embodiments, the second sound insulation cover 300 includes a second panel 310 and a second cover body 320 protruding outward from the middle of the second panel 310; the second panel 310 is connected to the second surface 120, the circulation hole 140 communicates with the second cover body 320, a connection relationship with the support 100 is established through the second panel 310, and the compressed gas is silenced by the second cover body 320 to achieve the purpose of reducing noise.

[0060] The second panel 310 and the second surface 120 can be connected and fixed by means of bolt locking or snap fastening. In this example, there is no specific limitation on the connection method between the second panel 310 and the second surface 120, as long as the connection stability between the second muffler 300 and the support 100 is ensured.

[0061] For example, in one example, connection holes 330 for positioning and connecting with the second surface 120 are provided on the second panel 310. The number of connection holes 330 is two, which are respectively located at opposite ends of the second panel 310. After passing the threaded ends of the bolts through the connection holes 330, they are locked on the support 100 to perform alignment connection on the second muffler 300, improving the accuracy and convenience of assembly.

[0062] The flow hole 140 communicates with the second housing 320 of the first muffler 200 and the second muffler 300, so that after the compressed gas enters the first muffler 200 through the exhaust hole 130, a part of it enters the second housing 320 through the flow hole 140 and undergoes refraction and cancellation inside the second housing 320, playing a role in expanding the muffling space.

[0063] In some embodiments, a plurality of muffling plates 340 are arranged at intervals inside the second housing 320. The muffling plates 340 extend in the axial direction, increasing the refraction and cancellation effect on the compressed gas and improving the noise reduction effect.

[0064] For example, there are a total of three muffling plates 340, and the three muffling plates 340 are arranged at intervals in the horizontal direction inside the second housing 320. It can be understood that the three muffling plates 340 divide the inside of the second housing 320 into four cavities. And to ensure that the cavities are in a mutually connected state, in the axial direction, the height of the muffling plates 340 can be designed to be less than the height of the second housing 320, or through holes for gas passage are provided on the muffling plates 340, so as to increase the muffling path and expand the muffling space while improving the refraction and cancellation effect by means of the muffling plates 340.

[0065] A pump structure for improving the noise of a compressor provided in this embodiment further improves the noise reduction effect and achieves a better muffling effect by optimizing the structures of the first muffler 200 and the second muffler 300.

[0066] Embodiment 3:

[0067] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the pump structure of the present utility model. Please refer to Figure 8 .

[0068] The pumping structure provided in this embodiment further includes a cylinder block 400. The cylinder block 400 is connected to the middle position of the second surface 120, and the second silencer cover 300 is connected to the edge position of the second surface 120. This connection relationship can expand the silencing space without changing the structure of the existing cylinder block 400, improving its adaptability.

[0069] Combined with the understanding of the traditional structure of the cylinder block 400, it can be known that the cylinder block 400 includes a first end face and a second end face arranged opposite to each other. Among them, the first end face is connected to the middle position of the second surface 120 of the support 100, and an exhaust port is formed on the first end face. The exhaust port is in a communicating state with the exhaust hole 130 on the support 100. Since the second silencer cover 300 is connected to the edge position of the second surface 120, it can also be understood that the circulation holes 140 are distributed at the edge position of the support 100 to adapt to the connection position of the second silencer cover 300.

[0070] Furthermore, in the axial direction, the height of the second silencer cover 300 is less than the height of the cylinder block 400. This limitation of the height relationship will not increase the original height of the pumping structure, facilitating the assembly of adapting to existing products. On the other hand, it can also compress the height of the traditional silencer cover. For example, the height of the first silencer cover 200 is less than the height of the traditional silencer cover provided on the support 100, thereby reducing the rotor hot sleeve depth and realizing the flat design of the compressor.

[0071] A pumping structure for improving the noise of a compressor provided by the present utility model has a first silencer cover connected to the first surface of the support and a second silencer cover connected to the second surface of the support, expanding the silencing space, reducing noise transmission, achieving the effect of reducing the valve plate flapping sound and effectively improving the ear feeling; in addition, while expanding the silencing space, it can also compress the height of the traditional silencer cover, thereby reducing the rotor hot sleeve depth and realizing the flat design of the compressor.

[0072] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0073] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0074] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0075] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, under and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0076] Although the description of the present utility model is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included within the spirit and scope of the appended claims.

Claims

1. A pump structure for improving the noise of a compressor, characterized in that, It includes a support (100), a first sound insulation cover (200) and a second sound insulation cover (300); The support (100) includes a first surface (110) and a second surface (120) arranged back to back, and an exhaust hole (130) and a circulation hole (140) penetrating through the first surface (110) and the second surface (120) are formed on the support (100); The first sound insulation cover (200) is connected to the first surface (110), and both the exhaust hole (130) and the circulation hole (140) are communicated with the inside of the first sound insulation cover (200); The second sound insulation cover (300) is connected to the second surface (120), and the circulation hole (140) is communicated with the inside of the second sound insulation cover (300).

2. The pump structure for improving the noise of a compressor according to claim 1, wherein The circulation hole (140) has a first opening (141) formed on the first surface (110) and a second opening (142) formed on the second surface (120); The first opening (141) and the second opening (142) are not in an aligned relationship.

3. The pump structure for improving the noise of a compressor according to claim 1, wherein, The number of the circulation holes (140) is two or more.

4. The pump structure for improving the noise of a compressor according to claim 1, wherein, The first sound insulation cover (200) includes a first panel (210) and a first cover body (220) protruding outward from the middle of the first panel (210); The first panel (210) is connected to the first surface (110), and the exhaust hole (130) and the circulation hole (140) communicate with the first cover body (220).

5. The pump structure for improving the noise of the compressor according to claim 4, characterized in that, A plurality of air outlets (230) are spaced apart on the first cover body (220).

6. The pump structure for improving the noise of a compressor according to claim 1, wherein, The second sound insulation cover (300) includes a second panel (310) and a second cover body (320) protruding outward from the middle of the second panel (310); The second panel (310) is connected to the second surface (120), and the circulation hole (140) communicates with the second cover body (320).

7. The pump structure for improving the noise of the compressor according to claim 6, wherein, A connection hole (330) for positioning and connecting with the second surface (120) is formed on the second panel (310).

8. The pump structure for improving the noise of a compressor according to claim 6, characterized in that, A plurality of sound insulation plates (340) are spaced apart inside the second cover body (320), and the sound insulation plates (340) extend along the axial direction.

9. The pump structure for improving the noise of a compressor according to any one of claims 1-8, characterized in that, It further includes a cylinder block (400); The cylinder block (400) is connected to the middle position of the second surface (120), and the second sound insulation cover (300) is connected to the edge position of the second surface (120).

10. The pump structure for improving the noise of the compressor according to claim 9, wherein, In the axial direction, the height of the second sound insulation cover (300) is less than the height of the cylinder block (400).

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