Support capable of reducing noise of compressor, pump assembly and compressor

Abstract

The utility model relates to the technical field of compressors, and discloses a support capable of reducing the noise of a compressor, a pump assembly and a compressor, the support comprises a substrate, the substrate comprises a first surface and a second surface which are arranged oppositely, a mounting groove is formed in the first surface, and the second surface is provided with a mounting hole; a discharge hole penetrating through the second surface is formed in the groove bottom of the mounting groove, an arc groove is formed in the second surface, and one end of the arc groove is connected with the discharge hole; the utility model has the following technical effects: 1, the arc groove has the function of a resonant cavity, when the compressor exhausts, part of compressed gas is stored in the arc groove, and part of valve plate sound can be counteracted when the valve plate flaps the support; noise is effectively reduced, and the ear feeling is improved;

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and particularly relates to a support, a pump assembly and a compressor capable of reducing the noise of the compressor. Background Art

[0002] With the acceleration of the urbanization process and the increase of industrial activities, the problem of noise pollution is becoming increasingly serious, which not only affects people's rest and sleep, but also may pose a potential threat to physical and mental health. Therefore, the research and application of noise improvement technologies have important practical significance.

[0003] 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 the experience. Especially, the noise requirements for air conditioners are getting higher and higher.

[0004] 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 of the compressor, such as motor noise, beat frequency noise, valve plate noise, blade impact noise, and so on.

[0005] Specifically, during the operation of the compressor, a valve plate impact 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 the prior art, only a separate sound insulation cavity is formed by setting a sound insulation cover and a support. Since the sound transmission path is single, the sound cannot be canceled out by sound refraction in the sound insulation cavity, and the sound insulation effect is limited, resulting in a poor listening experience. Summary of the Utility Model

[0006] In order to solve the deficiencies of the above-mentioned prior art, the utility model provides a support, a pump assembly and a compressor capable of reducing the noise of the compressor, which realizes that part of the valve plate sound can be offset when the valve plate beats the support, achieving the purpose of effectively reducing noise and improving the ear feeling.

[0007] The technical purpose to be achieved by the utility model is realized through the following technical solutions:

[0008] The utility model provides a support capable of reducing the noise of the compressor, including a substrate, and the substrate includes a first surface and a second surface arranged opposite to each other;

[0009] An installation groove is formed on the first surface, and a discharge hole penetrating through the second surface is opened at the bottom of the installation groove;

[0010] An arc groove is formed on the second surface, and one end of the arc groove is connected to the discharge hole.

[0011] In some implementation manners, the discharge hole is a circular hole, and the center point of the discharge hole is located on the extension line of the center line of the arc groove. Designing the discharge hole as a circular hole enables the gas to have uniformity when discharged through the discharge hole, and the center point of the discharge hole being located on the extension line of the center line of the arc groove can enable the resonance cavity formed by the arc groove to have a relatively uniform canceling effect on the valve plate sound.

[0012] In some implementation manners, an expansion groove is formed on the distribution path of the arc groove, and the expansion groove is a circular groove or a square groove. When the gas is transmitted in the arc groove and passes through the expansion groove, due to the sudden change in acoustic impedance, sound waves of some frequencies cannot pass through smoothly but are reflected back in the opposite direction. Through this reflection effect, the sound energy is attenuated during the propagation process, thereby achieving the purpose of noise reduction.

[0013] In some implementation manners, the number of the expansion grooves is two or more to achieve a better noise reduction purpose.

[0014] In some implementation manners, the expansion groove is a circular groove, and the center point of the expansion groove is located on the center line of the arc groove to ensure a better reflection effect and achieve a better noise reduction effect.

[0015] In some implementation manners, the substrate is a circular plate, and the center point of the arc groove and the center point of the substrate are on the same axis, which is convenient for processing the arc groove and enabling the compressed gas to enter the arc groove uniformly.

[0016] The present utility model further provides a pump assembly, including a valve plate, a silencing cover, a cylinder block, and the support as described in any one of the above;

[0017] One end of the valve plate is fixed in the installation groove, and the other end of the valve plate is used to movably block the discharge hole. The silencing cover is connected to the first surface and covers the installation groove. The cylinder block is connected to the second surface and blocks the arc groove. After applying the support that can reduce the noise of the compressor, during exhaust, it is possible to utilize part of the compressed gas stored in the arc groove to achieve the effects of reducing noise transmission and reducing the slapping sound of the pump valve plate.

[0018] In some implementation manners, it further includes a protection piece, one end of the protection piece is fixed in the installation groove, and the protection piece covers the valve plate. The protection piece can produce a buffering effect on the slapping of the valve plate and play a certain protective role for the valve plate.

[0019] In some implementations, the silencing cover includes a panel and a cover body protruding outward from the middle of the panel. The panel is connected to the first surface, and the cover body covers the installation groove;

[0020] The cover body is provided with exhaust holes, which can play a silencing role in the gas discharged from the discharge holes at the installation groove through the cover body. At the same time, with the help of the exhaust holes on the cover body, the silenced gas is discharged to achieve the purpose of reducing noise.

[0021] The present utility model also provides a compressor, including the pump assembly described in any one of the above. Compared with the traditional compressor structure, it can further reduce noise and achieve the purpose of improving the auditory sense.

[0022] In summary, the present utility model has at least the following advantages:

[0023] 1. The support for reducing the noise of the compressor provided by the present utility model forms an arc groove on the second surface of the support. During the operation of the compressor, the arc groove can function as a resonance cavity. When the compressor exhausts, part of the compressed gas is stored in the arc groove, and when the valve plate beats the support, part of the valve plate sound can be offset, thereby reducing the noise transmission and finally achieving the effect of reducing the pump valve plate beating sound and improving the auditory sense.

[0024] 2. The pump assembly provided by the present utility model, after applying the support for reducing the noise of the compressor, can utilize part of the compressed gas stored in the arc groove during exhaust to achieve the effects of reducing noise transmission and reducing the pump valve plate beating sound.

[0025] 3. The compressor provided by the present utility model can further reduce noise compared with the traditional compressor structure and achieve the purpose of improving the auditory sense. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 and Figure 2 are schematic structural diagrams of the support of Embodiment 1 of the present utility model in different directions;

[0027] Figure 3 is a schematic structural diagram of the support of Embodiment 2 of the present utility model;

[0028] Figure 4 is another schematic structural diagram of the support of Embodiment 2 of the present utility model;

[0029] Figure 5 is another schematic structural diagram of the support of Embodiment 2 of the present utility model;

[0030] Figure 6 is a schematic structural diagram of the pump assembly of Embodiment 3 of the present utility model;

[0031] Figure 7 Exploded view of the structure of the pump assembly according to Embodiment 3 of the present utility model;

[0032] Figure 8 Schematic diagram of the structure of the compressor according to Embodiment 4 of the present utility model;

[0033] 100, support; 110, substrate; 111, first surface; 112, second surface; 120, mounting groove; 130, discharge hole; 140, arc groove; 150, expansion groove;

[0034] 200, pump assembly;

[0035] 300, valve plate;

[0036] 400, silencer cover; 410, panel; 420, cover body; 430, exhaust hole;

[0037] 500, cylinder block;

[0038] 600, protective sheet;

[0039] 700, compressor. Detailed implementation manners

[0040] To make the purpose, 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 only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0041] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but only represents the 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 belong to the scope of protection of the present utility model.

[0042] Embodiment 1:

[0043] Please refer to Figure 1 and Figure 2 , a support that can reduce the noise of the compressor. The support 100 includes a substrate 110, and the substrate 110 includes a first surface 111 and a second surface 112 that are disposed opposite to each other.

[0044] A mounting groove 120 is formed on the first surface 111, and a discharge hole 130 penetrating the second surface 112 is opened at the bottom of the mounting groove 120.

[0045] Combined with the understanding of the traditional support structure, it can be known that the installation groove 120 is used for installing the valve plate, and the discharge hole 130 is used for discharging gas. The valve plate is located above the discharge hole 130 and is used to play a certain role in blocking and buffering the gas discharged from the discharge hole 130.

[0046] An arc groove 140 is formed on the second surface 112, and one end of the arc groove 140 is connected to the discharge hole 130.

[0047] During the operation of the compressor, part of the compressed gas will be discharged through the discharge hole 130, and part of the compressed gas will be stored in the arc groove 140 on the second surface 112. Thus, when the valve plate is impacted by the gas from the discharge hole 130, the valve plate will slap the support. During the slapping process of the valve plate, the compressed gas stored in the arc groove 140 on the second surface 112 can offset the slapping sound generated by the valve plate slapping the support.

[0048] Specifically, when this support is applied to traditional pump components and compressors, combined with the combined action of the components associated with the support, it can be known that silencing covers and cylinder bodies are respectively connected to both ends of the support. For example, the first surface 111 is connected to the silencing cover, and the silencing cover is used to play a silencing role for the gas discharged from the discharge hole 130. The second surface 112 is connected to the cylinder body, and the cylinder body covers the arc groove 140, enabling the arc groove 140 to have the function of a resonance cavity. That is, by designing the structure of the arc groove 140, it is possible to use the reflection of sound waves caused by impedance to achieve noise reduction. Therefore, when the valve plate slaps the support under the action of the gas intermittently discharged from the discharge hole 130, since one end of the arc groove 140 is connected to the discharge hole 130, part of the compressed gas located in the arc groove 140 can flow to the discharge hole 130 by virtue of the connection relationship with the discharge hole 130, and offset the slapping sound generated by the valve plate slapping the support.

[0049] In some embodiments, the discharge hole 130 is a circular hole, and the center point of the discharge hole 130 is located on the extension line of the center line of the arc groove 140. Designing the discharge hole 130 as a circular hole enables the gas to have uniformity when being discharged through the discharge hole 130, and the center point of the discharge hole 130 being located on the extension line of the center line of the arc groove 140 can enable the resonance cavity function formed by the arc groove 140 to have a relatively uniform offset effect on the valve plate sound.

[0050] Of course, in this example, there are no restrictions on the shape of the discharge hole 130 and the specific positional relationship between the discharge hole 130 and the arc groove 140. The shape of the discharge hole 130 and the specific positional relationship between the discharge hole 130 and the arc groove 140 can be adjusted according to actual production requirements, as long as one end of the arc groove 140 is connected to the discharge hole 130.

[0051] The support provided by the present utility model that can reduce the noise of the compressor forms an arc groove 140 on the second surface 112 of the support. During the operation of the compressor, the arc groove 140 can function as a resonance cavity. When the compressor exhausts, part of the compressed gas is stored in the arc groove 140. When the valve plate pats the support, it can offset part of the valve plate sound, thereby reducing the noise transmission and ultimately achieving the effect of reducing the pumping valve plate slapping sound and the purpose of improving the ear feeling.

[0052] Embodiment 2:

[0053] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the support of the present utility model. Please refer to Figures 3 - 5 .

[0054] An expansion groove 150 is formed on the distribution path of the arc groove 140. When the gas is transmitted in the arc groove 140 and passes through the expansion groove 150, due to the sudden change of the acoustic impedance, part of the frequency of the sound wave cannot pass through smoothly but is reflected back in the opposite direction. Through this reflection effect, the sound energy is attenuated during the propagation process, thereby achieving the purpose of noise elimination.

[0055] Refer to Figure 3 and Figure 4 , for example, on the distribution path between the two ends of the arc groove 140, an expansion groove 150 is formed. The expansion groove 150 protrudes from both sides of the distribution path of the arc groove 140. The expansion groove 150 can be a circular groove or a square groove. The circular groove or the square groove has a relatively uniform shape. On the one hand, it is convenient for production, and on the other hand, it can also produce a relatively uniform reflection effect. Of course, in this embodiment, the specific shape of the expansion groove 150 is not limited, and the shape of the expansion groove 150 can be adjusted according to the actual production requirements, such as adjusting the expansion groove 150 to a pentagon, a hexagon or an ellipse, etc.

[0056] In some embodiments, refer to Figure 5 , the number of the expansion grooves 150 is two or more. Appropriately increasing the number of the expansion grooves 150 can achieve a better noise elimination purpose.

[0057] For example, the number of the expansion slots 150 is two, and the two expansion slots 150 are spaced apart on the distribution path between the two end portions of the arc-shaped slot 140. When the valve plate strikes the support, since one end portion of the arc-shaped slot 140 is connected to the discharge hole 130, part of the compressed gas located in the arc-shaped slot 140 can flow to the discharge hole 130 by virtue of the communication relationship with the discharge hole 130, so as to cancel the striking sound generated when the valve plate strikes the support. During the gas flow process, when the gas passes through the two expansion slots 150 in sequence, due to the sudden change of the acoustic impedance, part of the sound waves of a certain frequency cannot pass smoothly, but are reflected back in the opposite direction. Through this reflection effect, the sound energy is attenuated during the propagation process, so as to achieve the purpose of noise elimination.

[0058] That is to say, in combination with the actual requirements, when the number of the expansion slots 150 is set to two or more, the sudden change of the acoustic impedance and the reflection effect of the sound waves can be generated when the valve plate strikes the support, so as to ensure a good noise elimination effect.

[0059] In some embodiments, the expansion slot 150 is a circular slot, and the center point of the expansion slot 150 is located on the center line of the arc-shaped slot 140, so as to ensure a good reflection effect and achieve a good noise elimination effect.

[0060] The expansion slot 150 is designed as a circular slot, and the center point of the expansion slot 150 is located on the center line of the arc-shaped slot 140. On the one hand, the overall noise elimination effect can be made uniform, and on the other hand, it is also convenient for the production and manufacture of the support, and it has the advantage of beautiful overall appearance.

[0061] In some embodiments, the substrate 110 is a circular plate, and the center point of the arc-shaped slot 140 and the center point of the substrate 110 are on the same axis.

[0062] The arc-shaped slot 140 is located between the center point of the substrate 110 and the edge, that is, the arc-shaped slot 140 is located at the middle position of the second surface 112 of the substrate 110 and is evenly distributed around the center point of the substrate 110. Here, the substrate 110 is designed as a circular plate, and the center point of the arc-shaped slot 140 and the center point of the substrate 110 are on the same axis, which is convenient for the processing of the arc-shaped slot 140 and the uniform entry of the compressed gas into the arc-shaped slot 140.

[0063] Embodiment 3:

[0064] On the basis of the above embodiments, this embodiment provides a pump assembly. Please refer to Figure 6 and Figure 7 .

[0065] A pump assembly 200 includes a valve plate 300, a silencing cover 400, a cylinder block 500, and the support in any of the above embodiments.

[0066] One end of the valve plate 300 is fixed in the installation groove 120, and the other end of the valve plate 300 is used to movably block the discharge hole 130. For example, the valve plate 300 has a certain elasticity and can be lifted upward at one end in a fixed state under the action of the gas discharged from the discharge hole 130, and can also flap down on the support when the discharged gas volume becomes smaller or there is no discharged gas.

[0067] The silencing cover 400 is connected to the first surface 111, so that a silencing space is formed between the silencing cover 400 and the support. The silencing cover 400 covers the installation groove 120, that is, the installation groove 120 is located in the silencing space, so that the gas discharged from the discharge hole 130 opened at the bottom of the installation groove 120 can produce a silencing effect through this silencing space.

[0068] The cylinder block 500 is connected to the second surface 112, and the cylinder block 500 blocks the arc groove 140, so that the arc groove 140 has the function of a resonance cavity. That is, by designing the structure of the arc groove 140, it is possible to use the reflection of sound waves caused by impedance to eliminate noise. Therefore, when the valve plate 300 flaps on the support under the action of the gas intermittently discharged from the discharge hole 130, since one end of the arc groove 140 is connected to the discharge hole 130, part of the compressed gas located in the arc groove 140 can flow to the discharge hole 130 by virtue of the communication relationship with the discharge hole 130, and cancel the flapping sound of the valve plate 300 hitting the support.

[0069] In some embodiments, the pump assembly further includes a protective sheet 600. One end of the protective sheet 600 is fixed in the installation groove 120, and the protective sheet 600 covers the valve plate 300. The protective sheet 600 can buffer the flapping of the valve plate 300 and play a certain protective role for the valve plate 300.

[0070] It can be known that one end of the valve plate 300 is fixed in the installation groove 120, and the other end of the valve plate 300 is used to movably block the discharge hole 130. Under the action of the gas discharged from the discharge hole 130, the movable end of the valve plate 300 can be lifted upward. In order to avoid the situation that the upward lifting stroke of the movable end of the valve plate 300 is too large or the valve plate 300 is excessively deformed due to the impact of the gas, in this embodiment, the protective sheet 600 is covered in the lifting direction of the valve plate 300. The installation method of the protective sheet 600 is the same as that of the valve plate 300. For example, one end of the protective sheet 600 overlaps with one end of the valve plate 300 and is fixed in the installation groove 120 by rivets, and the movable end of the protective sheet 600 is designed to be in a lifted state. When the valve plate 300 is lifted upward under the action of the gas, it will be restricted by the protective sheet 600, thereby ensuring the use stability of the valve plate 300 and increasing the service life of the valve plate 300.

[0071] In some embodiments, the silencing cover 400 includes a panel 410 and a cover body 420 protruding outward from the middle of the panel 410. The panel 410 is connected to the first surface 111, and the cover body 420 covers the installation groove 120. An exhaust hole 430 is formed in the cover body 420.

[0072] Positioning holes are formed in the panel 410 of the silencing cover 400 and the support in relative positions. It can be known that the positioning holes on the support penetrate through the first surface 111 and the second surface 112. After aligning the positioning holes on the panel 410 with the positioning holes at the first surface 111, locking connection can be carried out through locking parts such as rivets. Here, combining and connecting the panel 410 with the first surface 111 can help improve the connection sealing performance between the silencing cover 400 and the support, ensure that the cover body 420 has a good silencing effect on the gas discharged from the discharge holes 130 at the installation groove 120, and at the same time, with the help of the exhaust hole 430 on the cover body 420, the silenced gas is discharged to achieve the purpose of reducing noise.

[0073] For the pump assembly provided by the present utility model, after applying the support that can reduce the noise of the compressor, during exhaust, it can utilize part of the compressed gas stored in the arc groove 140 to achieve the effects of reducing noise transmission and reducing the slapping sound of the pump valve plate 300.

[0074] Embodiment 4:

[0075] On the basis of the above Embodiment 3, this embodiment provides a compressor. Please refer to Figure 8 .

[0076] A compressor 700 includes the pump assembly 200 in the above Embodiment 3. The compressor provided by the present utility model can further reduce noise compared with the structure of traditional compressors, achieving the purpose of improving the auditory sense.

[0077] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and other terms 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 situations.

[0078] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "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. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0079] In addition, terms such as "horizontal", "vertical", "hanging", etc. do not mean that the component is required to be absolutely horizontal or hanging, 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.

[0080] 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.

[0081] Although the description of the present utility model is made in combination with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications, and variations based on the above content. Therefore, all such substitutions, improvements, and variations are included within the spirit and scope of the appended claims.

Claims

1. A support capable of reducing compressor noise, characterized in that: The support (100) comprises a substrate (110), wherein the substrate (110) comprises a first surface (111) and a second surface (112) disposed opposite to each other; A mounting groove (120) is formed on the first surface (111), and a discharge hole (130) penetrating through the second surface (112) is formed at the bottom of the mounting groove (120); A circular arc groove (140) is formed on the second surface (112), and one end of the circular arc groove (140) is connected to the discharge hole (130).

2. The support capable of reducing compressor noise according to claim 1, characterized in that: The discharge hole (130) is a circular hole, and the point of the discharge hole (130) is located on the extension line of the center line of the circular arc groove (140).

3. The support capable of reducing compressor noise according to claim 1, characterized in that: An expansion groove (150) is formed on the distribution path of the arc groove (140), and the expansion groove (150) is a circular groove or a square groove.

4. The support capable of reducing compressor noise according to claim 3, characterized in that: The number of the expansion slots (150) is two or more.

5. The support capable of reducing compressor noise according to claim 3, characterized in that: The expansion groove (150) is a circular groove, and the point of the expansion groove (150) is located on the midline of the arc groove (140).

6. The support capable of reducing compressor noise according to claim 1, characterized in that: The substrate (110) is a circular plate, and the circular point of the circular arc groove (140) and the circular point of the substrate (110) are on the same axis.

7. A pump assembly, characterized in that: The pump assembly (200) comprises a valve plate (300), a muffler cover (400), a cylinder body (500) and a support according to any one of claims 1 to 6; One end of the valve plate (300) is fixed in the mounting groove (120), and the other end of the valve plate (300) is used to movably cover the discharge hole (130); the silencer cover (400) is connected to the first surface (111), and the silencer cover (400) covers the mounting groove (120); the cylinder body (500) is connected to the second surface (112), and the cylinder body (500) covers the arc groove (140).

8. The pump assembly according to claim 7, characterized in that: It also includes a protective sheet (600), one end of which is fixed in the mounting groove (120), and the protective sheet (600) covers the valve sheet (300).

9. The pump assembly according to claim 7, characterized in that: The muffler cover (400) comprises a panel (410) and a cover body (420) protruding outward from the middle of the panel (410), the panel (410) is connected to the first surface (111), and the cover body (420) covers the installation groove (120); The cover body (420) is provided with an exhaust hole (430).

10. A compressor, characterized in that: The compressor (700) comprises the pump assembly (200) according to any one of claims 7 to 9.

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