Support with silencing channel, pumping structure and compressor

Abstract

The utility model relates to the technical field of compressors, and discloses a support with a noise reduction channel, a pumping structure and a compressor, the support comprises a base plate, the base plate comprises a first surface and a second surface which are arranged back to back, a mounting groove is formed in the first surface, a discharge port penetrating through the base plate is formed in the groove bottom of the mounting groove, and a noise reduction channel is formed in the second surface of the base plate. A silencing channel is formed in the middle of the side wall of the mounting groove in the radial direction, a circulating groove is formed in the edge of the first surface in the axial direction, and the circulating groove communicates with the silencing channel; the utility model has the following technical effects: the transmission space and path in the noise transmission process are increased, and the noise transmission loss is increased, so that the noise transmission is reduced, and the purpose of improving the ear feeling is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and particularly relates to a support with a sound absorption channel, a pump structure and a compressor. Background Art

[0002] With the acceleration of the urbanization process and the increase of industrial activities, the problem of noise pollution has become 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 technology have important practical significance.

[0003] As is well known, the noise of an air conditioner mainly comes from the compressor. When the compressor is running, a valve flapping sound will be generated during the opening and closing process of the valve plate. This noise is the main source of noise of the compressor. In the prior art, only a separate sound absorption cavity is formed by setting a sound absorption cover and a support. Due to the single sound transmission path, the sound cannot be cancelled out by sound refraction in the sound absorption cavity, and the sound absorption effect is limited, resulting in a poor listening experience. Summary of the Utility Model

[0004] In order to solve the deficiencies of the above-mentioned prior art, the utility model provides a support with a sound absorption channel, a pump structure and a compressor, which realizes increasing the transmission space and path in the noise transmission process, increasing the noise transmission loss, reducing the noise transmission, and achieving the purpose of improving the ear feeling.

[0005] The technical purpose to be achieved by the utility model is realized through the following technical solutions:

[0006] The utility model provides a support with a sound absorption channel, and the support includes a base plate;

[0007] The base plate includes a first surface and a second surface arranged opposite to each other. An installation groove is formed on the first surface, and a discharge port penetrating through the base plate is opened at the bottom of the installation groove;

[0008] A sound absorption channel is opened in the middle of the side wall of the installation groove in the radial direction;

[0009] A flow groove is formed at the edge of the first surface in the axial direction, and the flow groove communicates with the sound absorption channel.

[0010] In some implementation manners, the sound absorption channel includes a first port and a second port arranged opposite to each other. The first port communicates with the installation groove, and the second port communicates with the outside of the base plate, so as to increase the transmission space and path in the noise transmission process as much as possible, increase the noise transmission loss and reduce the noise transmission.

[0011] In some implementation manners, the caliber size of the first port is smaller than the caliber size of the second port, forming an expansion type sound absorption channel, which has a better noise transmission loss effect.

[0012] In some implementations, a first channel portion and a second channel portion that are connected and communicate with each other are formed in the sound deadening channel;

[0013] The caliber size of the first channel portion is the same as that of the first port, and the caliber size of the second channel portion is the same as that of the second port, forming a two-stage series expansion cavity type sound deadening channel, which has a good noise transmission loss effect.

[0014] In some implementations, a first channel portion, a second channel portion, and a third channel portion that are connected and communicate with each other are formed in the sound deadening channel;

[0015] The caliber size of the first channel portion is the same as that of the first port, the caliber size of the second channel portion is larger than that of the first port and smaller than that of the second port, and the caliber size of the third channel portion is the same as that of the second port, forming a three-stage series expansion cavity type sound deadening channel, which has a good noise transmission loss effect.

[0016] In some implementations, an annular groove is formed in the circumferential side wall of the substrate, and both ends of the annular groove communicate with the sound deadening channel, further increasing the transmission space and path during noise transmission, increasing the noise transmission loss, and reducing the noise transmission.

[0017] The present utility model further provides a pump structure, which includes a valve plate, a sound deadening cover, a cylinder block, and the support as described in any one of the above;

[0018] One end of the valve plate is fixedly installed in the installation groove, and the other end of the valve plate movably blocks the discharge port;

[0019] The sound deadening cover is connected to the first surface and covers the circumferential side wall of the substrate, and the cylinder block is connected to the second surface. After applying the support with a sound deadening channel, during exhaust, the transmission space and path during noise transmission can be increased by means of the sound deadening channel and the flow groove, achieving the effects of reducing noise transmission and reducing the slapping sound of the pump valve plate.

[0020] In some implementations, the sound deadening cover includes a panel and a cover body that protrudes from the middle of the panel in the axial direction;

[0021] The panel is connected to the first surface, and a connecting surface for covering the circumferential side wall of the substrate is connected to the edge of the panel, that is, the sound deadening channel is covered by the connecting surface, so that the sound deadening channel functions as a sound deadening cavity.

[0022] In some implementations, a protective sheet is further included. One end of the protective sheet is fixed in the installation groove, and the protective sheet covers the valve sheet. The protective sheet can buffer the flapping of the valve sheet and play a certain protective role for the valve sheet.

[0023] The present utility model further provides a compressor, which includes the pumping structure 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 ear feeling.

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

[0025] 1. For the support with a sound-absorbing channel provided by the present utility model, by opening a sound-absorbing channel in the middle of the side wall of the installation groove in the radial direction and forming a flow groove communicating with the sound-absorbing channel along the axial direction at the edge of the first surface, during the exhaust process of the compressor, part of the compressed gas will pass through the sound-absorbing channel and the flow groove, increasing the transmission space and path in the whole noise transmission process, increasing the noise transmission loss, thereby reducing the noise transmission, and finally achieving the effect of reducing the flapping sound, so as to achieve the purpose of improving the ear feeling.

[0026] 2. For the pumping structure provided by the present utility model, after applying the support with a sound-absorbing channel, during exhaust, it can utilize the sound-absorbing channel and the flow groove to increase the transmission space and path in the noise transmission process, achieve the effects of reducing the noise transmission and the flapping sound of the pumping valve sheet. At the same time, since the sound-absorbing channel and the flow groove are both outside the compression area, the energy efficiency will not be affected.

[0027] 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 ear feeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 and Figure 2 are schematic structural diagrams of the support of Embodiment 1 of the present utility model from different perspectives;

[0029] Figure 3 is a sectional view of the support of Embodiment 1 of the present utility model;

[0030] Figure 4 is a schematic structural diagram of the support of Embodiment 2 of the present utility model;

[0031] Figure 5 is a sectional view of the support of Embodiment 2 of the present utility model;

[0032] Figure 6 is a schematic structural diagram of the support of Embodiment 3 of the present utility model;

[0033] Figure 7Schematic diagram of the pump structure according to Embodiment 4 of the present utility model;

[0034] Figure 8 Exploded view of the pump structure according to Embodiment 4 of the present utility model;

[0035] Figure 9 Schematic diagram of the silencer cover according to Embodiment 4 of the present utility model;

[0036] Figure 10 Schematic diagram of the compressor according to Embodiment 5 of the present utility model;

[0037] 100, support; 110, substrate; 111, first surface; 112, second surface; 120, mounting groove; 130, discharge port; 140, sound absorption channel; 141, first channel part; 142, second channel part; 143, third channel part; 150, flow groove; 160, annular groove;

[0038] 200, pump structure;

[0039] 300, valve plate;

[0040] 400, silencer cover; 410, panel; 420, cover body; 430, connection surface;

[0041] 500, cylinder block;

[0042] 600, protective sheet;

[0043] 700, compressor. Detailed implementation manners

[0044] 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.

[0045] 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 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.

[0046] Embodiment 1:

[0047] Please refer to Figures 1-3 , a support with a sound absorption channel, the support 100 includes a substrate 110, and the substrate 110 includes a first surface 111 and a second surface 112 that are arranged opposite to each other.

[0048] The first surface 111 is formed with a mounting groove 120, and a discharge port 130 penetrating through the substrate 110 is formed at the bottom of the mounting groove 120.

[0049] Combined with the understanding of the traditional support structure, it can be known that the mounting groove 120 is used for mounting the valve plate 300, the discharge port 130 is used for discharging gas, and the valve plate 300 is located above the discharge port 130, which is used to play a certain role in blocking and buffering the gas discharged from the discharge port 130.

[0050] A sound-absorbing channel 140 is formed in the middle of the side wall of the mounting groove 120 in the radial direction; a flow channel 150 is formed at the edge of the first surface 111 in the axial direction, and the flow channel 150 communicates with the sound-absorbing channel 140.

[0051] It should be noted that the sound-absorbing channel 140 is formed in the middle of the side wall of the mounting groove 120 in the radial direction, that is, it is formed from the mounting groove 120 towards the circumferential side wall of the support, and the sound-absorbing channel 140 is not exposed on the first surface 111. The flow channel 150 is formed at the edge of the first surface 111 in the axial direction and communicates with the sound-absorbing channel 140, but the flow channel 150 does not extend to the second surface 112 of the substrate 110.

[0052] When the compressor is running, the compressed gas will be discharged through the discharge port 130. Among them, part of the compressed gas enters the sound-absorbing channel 140 and the flow channel 150, while part of the compressed gas impacts the valve plate 300. That is, by setting the sound-absorbing channel 140 and the flow channel 150, on the one hand, the impact of the gas discharged through the discharge port 130 on the valve plate 300 is weakened, and the slapping sound of the valve plate 300 on the support is reduced. On the other hand, it also increases the transmission space and path in the whole noise transmission process, increases the noise transmission loss, thereby reducing the noise transmission, and finally achieves the effect of reducing the slapping sound, so as to achieve the purpose of improving the ear feeling.

[0053] In some embodiments, the sound-absorbing channel 140 includes a first port and a second port arranged oppositely. The first port communicates with the mounting groove 120, and the second port communicates with the outside of the substrate 110. This limitation can increase the transmission space and path in the noise transmission process as much as possible, increase the noise transmission loss and reduce the noise transmission.

[0054] Furthermore, the caliber size of the first port is smaller than that of the second port. This limitation can make the sound-absorbing channel 140 form an expanding sound-absorbing channel 140, which has a good effect on noise transmission loss.

[0055] In some embodiments, a first channel portion 141 and a second channel portion 142 that are connected and communicate with each other are formed in the sound absorption channel 140; the caliber size of the first channel portion 141 is the same as that of the first port, and the caliber size of the second channel portion 142 is the same as that of the second port. The first channel portion 141 and the second channel portion 142 communicate to form a two-stage series expansion cavity type sound absorption channel 140, which has a good noise transmission loss effect.

[0056] For ease of understanding, it is assumed here that both the first channel portion 141 and the second channel portion 142 are uniform circular channels, that is, it is equivalent to that both the first channel portion 141 and the second channel portion 142 are hollow cylindrical cavities. Therefore, it is also equivalent to that both the first port and the second port are circular ports. Among them, at the connection between the first channel portion 141 and the second channel portion 142, there is an expansion structure, that is, after the compressed gas enters the first channel portion 141 through the first port and then enters the second channel portion 142, the caliber size suddenly becomes larger, thereby generating a two-stage series expansion cavity type sound absorption effect and having a good noise transmission loss effect.

[0057] The support with a sound absorption channel provided by the present utility model forms a sound absorption channel 140 by opening a sound absorption channel 140 in the middle of the side wall of the installation groove 120 in the radial direction and forming a flow channel 150 communicating with the sound absorption channel 140 along the axial direction at the edge of the first surface 111. During the exhaust process of the compressor, part of the compressed gas will pass through the sound absorption channel 140 and the flow channel 150, increasing the transmission space and path in the entire noise transmission process, increasing the noise transmission loss, thereby reducing the noise transmission, and finally achieving the effect of reducing the slapping sound, so as to achieve the purpose of improving the ear feeling.

[0058] Embodiment 2:

[0059] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the sound absorption channel 140 of the present utility model. Please refer to Figure 4 and Figure 5 .

[0060] A first channel portion 141, a second channel portion 142, and a third channel portion 143 that are connected and communicate with each other are formed in the sound absorption channel 140. The caliber size of the first channel portion 141 is the same as that of the first port, the caliber size of the second channel portion 142 is larger than that of the first port and smaller than that of the second port, and the caliber size of the third channel portion 143 is the same as that of the second port. A three-stage series expansion cavity type sound absorption channel 140 is formed, which has a good noise transmission loss effect.

[0061] As can be understood in combination with the description of Embodiment 1, it is set that the first channel part 141, the second channel part 142, and the third channel part 143 are all uniform circular channels. That is to say, it is equivalent that the first channel part 141, the second channel part 142, and the third channel part 143 are all hollow cylindrical cavities. Therefore, it is also equivalent that both the first port and the second port are circular ports. Since the caliber size of the second channel part 142 is larger than the caliber size of the first port and smaller than the caliber size of the second port, it can be understood that there is an expansion structure at the connection between the first channel part 141 and the second channel part 142, and there is also an expansion structure at the connection between the second channel part 142 and the third channel part 143. After the compressed gas enters the first channel part 141 through the first port, when it enters the second channel part 142, the caliber size suddenly becomes larger, and when it enters the third channel part 143 through the second channel part 142, the caliber size suddenly becomes larger again. Thus, a silencing effect of a three-stage series expansion cavity is generated. Compared with the silencing channel 140 of a two-stage series expansion cavity, the silencing channel 140 of a three-stage series expansion cavity can achieve a further better noise transmission loss effect.

[0062] Embodiment 3:

[0063] The difference between this embodiment and Embodiment 1 is that in this embodiment, further structural optimization is performed on the support of the present utility model. Please refer to Figure 6 .

[0064] An annular groove 160 is formed on the circumferential side wall of the substrate 110, and both ends of the annular groove 160 are communicated with the silencing channel 140, further increasing the transmission space and path during the noise transmission, increasing the noise transmission loss, and reducing the noise transmission.

[0065] For example, when the compressor is running, the compressed gas will be discharged through the discharge port 130. Among them, part of the compressed gas enters the silencing channel 140, the flow groove 150, and the annular groove 160, while part of the compressed gas impacts the valve plate 300. That is to say, by setting the silencing channel 140, the flow groove 150, and the annular groove 160, on the one hand, the impact of the gas discharged through the discharge port 130 on the valve plate 300 is weakened, and the slapping sound of the valve plate 300 on the support is reduced. On the other hand, the transmission space and path during the entire noise transmission are also increased, the noise transmission loss is increased, so as to reduce the noise transmission, and finally the effect of reducing the slapping sound is achieved, thereby realizing the purpose of improving the ear feeling.

[0066] Embodiment 4:

[0067] On the basis of the above embodiments, this embodiment provides a pump structure. Please refer to Figures 7-9 .

[0068] A pumping structure, the pumping structure 200 includes a valve plate 300, a silencing cover 400, a cylinder block 500 and the support in any of the above embodiments.

[0069] One end of the valve plate 300 is fixedly installed in the installation groove 120, and the other end of the valve plate 300 movably blocks the discharge port 130. For example, the valve plate 300 has a certain elasticity and can be lifted upward at the other end when it is in a fixed state at one end under the action of the gas discharged from the discharge port 130, and can also slap the support downward when the discharged gas volume becomes smaller or there is no discharged gas.

[0070] The silencing cover 400 is connected to the first surface 111 and covers the circumferential side wall of the substrate 110, and the cylinder block 500 is connected to the second surface 112.

[0071] It can be understood that the substrate 110 is located between the silencing cover 400 and the cylinder block 500, and the silencing cover 400 is connected to the first surface 111. That is, the silencing cover 400 covers the installation groove 120, so that the gas discharged through the discharge port 130 can play a silencing role through the silencing cover 400. At the same time, the silencing cover 400 covers the circumferential side wall of the substrate 110. Equivalently, the silencing cover 400 covers the flow groove 150 and a part of the silencing channel 140 exposed on the circumferential side wall of the substrate 110 to cooperate with the flow groove 150 and the silencing channel 140 to generate the effect of a silencing cavity, so as to achieve the effects of reducing noise transmission and reducing the slapping sound of the pumping valve plate 300.

[0072] In some embodiments, the silencing cover 400 includes a panel 410 and a cover body 420 protruding axially from the middle of the panel 410; the panel 410 is connected to the first surface 111, and a connecting surface 430 for covering the circumferential side wall of the substrate 110 is connected to the edge of the panel 410, that is, the silencing channel 140 is covered through the connecting surface 430 to make the silencing channel 140 play the role of a silencing cavity.

[0073] In some embodiments, the pumping structure further includes a protection piece 600. One end of the protection piece 600 is fixed in the installation groove 120, and the protection piece 600 covers the valve plate 300. The protection piece 600 can buffer the slapping of the valve plate 300 and play a certain protective role for the valve plate 300.

[0074] It is 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 port 130. Under the action of the gas discharged from the discharge port 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 excessive deformation is caused by the impact of the gas, in this embodiment, a protective plate 600 is covered in the lifting direction of the valve plate 300. The installation method of the protective plate 600 is the same as that of the valve plate 300. For example, one end of the protective plate 600 overlaps with one end of the valve plate 300 and is fixed in the installation groove 120 by a rivet, and the movable end of the protective plate 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 plate 600, so as to ensure the use stability of the valve plate 300 and improve the service life of the valve plate 300.

[0075] In the pump structure provided by the present utility model, after applying the support seat with a sound absorption channel, during exhaust, the sound absorption channel 140 and the flow channel 150 can be used to increase the transmission space and path during the noise transmission process, so as to achieve the effects of reducing noise transmission and reducing the slapping sound of the pump valve plate 300. At the same time, since both the sound absorption channel 140 and the flow channel 150 are located outside the compression zone, the energy efficiency will not be affected.

[0076] Embodiment 5:

[0077] On the basis of the above Embodiment 4, this embodiment provides a compressor. Please refer to Figure 10 .

[0078] A compressor 700 includes the pump structure of the above Embodiment 4. Compared with the traditional compressor structure, it can further reduce noise and achieve the purpose of improving the ear feeling.

[0079] In the present utility model, unless otherwise clearly defined and limited, the terms "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.

[0080] 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 product of the present utility model is usually 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.

[0081] 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.

[0082] 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.

[0083] 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 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 support with a silencing channel, characterized in that: The support (100) comprises a base plate (110); The substrate (110) comprises a first surface (111) and a second surface (112) disposed opposite to each other; the first surface (111) is formed with a mounting groove (120); a groove bottom of the mounting groove (120) is provided with a discharge port (130) penetrating the substrate (110); A sound-absorbing channel (140) is provided in the middle of the side wall of the installation groove (120) in the radial direction; A flow groove (150) is formed at the edge of the first surface (111) along the axial direction, and the flow groove (150) is connected to the muffler channel (140).

2. The support with a sound-absorbing channel according to claim 1, characterized in that: The muffler channel (140) comprises a first port and a second port which are arranged opposite to each other, the first port being connected to the mounting groove (120), and the second port being connected to the outside of the substrate (110).

3. The support with a sound-absorbing channel according to claim 2, characterized in that: The caliber size of the first port is smaller than the caliber size of the second port.

4. The support with a sound-absorbing channel according to claim 2, characterized in that: The muffler channel (140) is formed with a first channel portion (141) and a second channel portion (142) which are connected to each other; The caliber size of the first channel portion (141) is the same as the caliber size of the first port, and the caliber size of the second channel portion (142) is the same as the caliber size of the second port.

5. The support with a sound-absorbing channel according to claim 2, characterized in that: The muffler channel (140) is formed with a first channel portion (141), a second channel portion (142) and a third channel portion (143) which are connected to each other; The caliber size of the first channel portion (141) is the same as the caliber size of the first port, the caliber size of the second channel portion (142) is larger than the caliber size of the first port and smaller than the caliber size of the second port, and the caliber size of the third channel portion (143) is the same as the caliber size of the second port.

6. The support with a sound-absorbing channel according to claim 1, characterized in that: An annular groove (160) is formed on the circumferential side wall of the base plate (110), and both ends of the annular groove (160) are in communication with the muffler channel (140).

7. A pump structure, characterized in that: The pump structure (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 fixedly installed in the installation groove (120), and the other end of the valve plate (300) is movable to cover the discharge port (130); The muffler cover (400) is connected to the first surface (111) and covers the circumferential side wall of the base plate (110), and the cylinder body (500) is connected to the second surface (112).

8. The pump structure according to claim 7, characterized in that: The muffler cover (400) comprises a panel (410) and a cover body (420) protruding from the middle of the panel (410) in the axial direction; The panel (410) is connected to the first surface (111), and a connection surface (430) for covering the circumferential side wall of the substrate (110) is connected at the edge of the panel (410).

9. The pump structure 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).

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

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