Silencing pipe, silencer, compressor and refrigeration equipment

Abstract

The utility model discloses a hush pipe, silencer, compressor and refrigeration equipment, and relates to the technical field of compressors, the hush pipe comprises a pipe body and a silencing structure, the pipe body is provided with an air inlet and an air outlet; the silencing structure is arranged in the pipe body and located between the air inlet and the air outlet, the silencing structure at least comprises a flow guide part, one end of the flow guide part is fixedly connected with the pipe body, and the other end of the flow guide part is spaced from the pipe body; the flow guide part is provided with a windward side facing the air inlet and a leeward side facing the air outlet; wherein in the direction close to the air outlet, the windward side and the leeward side are obliquely arranged in the direction gradually close to the air outlet; according to the technical scheme, the air suction efficiency of the compressor can be improved, and the air suction noise of the compressor can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a muffler pipe, a muffler, a compressor and a refrigeration device. Background Art

[0002] Currently, during the suction process of the compressor, the fluid is first sucked into the suction muffler, and then the fluid is introduced into the cylinder of the compressor through the air outlet of the suction muffler. After the suction is completed, the fluid remaining in the suction muffler will flow back out from the air inlet pipe of the suction muffler. When the next suction starts, the compressor needs to repeatedly suck the refluxed fluid into the suction muffler, which increases the energy consumption of the compressor and reduces the suction efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide a silencer pipe, a silencer, a compressor and a refrigeration device, aiming to improve the suction efficiency of the existing compressor.

[0004] To achieve the above-mentioned purpose, the present invention provides a muffler pipe, comprising:

[0005] a tube body, on which an air inlet and an air outlet are provided; and,

[0006] a silencer structure disposed within the tube body and located between the air inlet and the air outlet, the silencer structure comprising at least a guide portion, one end of the guide portion being fixedly connected to the tube body and the other end being spaced apart from the tube body, the guide portion having a windward surface facing the air inlet and a leeward surface facing the air outlet;

[0007] Wherein, in the direction close to the air outlet, the windward surface and the leeward surface are both inclined in a direction gradually approaching the air outlet.

[0008] In an optional embodiment, the guide portion extends along the circumference of the tube body and is arranged in a ring shape.

[0009] In an optional embodiment, the inner cavity cross-sectional area of ​​the tube body is S1;

[0010] The other end of the guide portion is enclosed to form a first flow hole, and the area of ​​the first flow hole is S2, 0.01S1≤S2≤0.36S1.

[0011] In an optional embodiment, the guide portion is arranged to be inclined with respect to the longitudinal direction of the tube body.

[0012] In an optional embodiment, the inclination angle of the guide portion is a, wherein 20°≤a≤60°.

[0013] In an optional embodiment, the silencer structure includes a diverter portion located within the tube body, the diverter portion being located on a side of the guide portion close to the air inlet and spaced apart from the guide portion, the diverter portion having a first side end close to the inner wall surface of the tube body and a second side end extending to the middle of the inner cavity of the tube body, at least a portion of the first side end of the diverter portion being spaced apart from the inner wall of the tube body to form a flow gap.

[0014] In an optional embodiment, the inner cavity cross-sectional area of ​​the tube body is S1;

[0015] The area of ​​the flow gap is S3, wherein 0.18S1≤S3≤0.36S1; and / or,

[0016] The diverter portion is arranged in a ring shape, and a second side end of the diverter portion defines a second flow hole. The area of ​​the second flow hole is S4, wherein 0.01S1≤S4≤0.36S1.

[0017] In an optional embodiment, the diverter is tilted in a direction gradually approaching the air outlet.

[0018] In an optional embodiment, the diverter portion is arranged in an annular shape, and the second side end of the diverter portion defines a second flow hole;

[0019] The second flow hole is arranged opposite to the first flow hole.

[0020] In an optional embodiment, a plurality of the guide portions and the diverter portions are provided, and the plurality of guide portions and the diverter portions are staggered in the length direction of the tube body.

[0021] To achieve the above objectives, the present application also proposes a muffler, comprising:

[0022] case;

[0023] A plurality of connecting pipes, wherein the plurality of connecting pipes include an air inlet pipe and an air outlet pipe, and at least one of the connecting pipes is configured as a silencer pipe as described above.

[0024] In an optional embodiment, the housing is formed with an air inlet cavity and an air outlet cavity, and a partition wall is formed between the air inlet cavity and the air outlet cavity;

[0025] The plurality of communicating tubes further include an inner insert tube, which is installed on the partition wall and connects the air inlet cavity and the air outlet cavity;

[0026] At least one of the inner tube, the air inlet pipe, and the air outlet pipe is configured as the silencer pipe.

[0027] In an optional embodiment, the air inlet pipe and the inner tube are configured as the silencer pipe.

[0028] In an optional embodiment, the air outlet of the air inlet pipe and the air inlet of the inner tube are at least partially arranged opposite to each other; and / or,

[0029] The distance between the air outlet of the air inlet pipe and the air inlet of the inner tube is 1 to 3 mm; and / or,

[0030] The air outlet of the inner tube and the air inlet of the air outlet pipe are at least partially arranged opposite to each other.

[0031] In an optional embodiment, the inner tube is located at one end of the air inlet cavity and is closed, and the air inlet is opened on the side wall of the inner tube; and / or,

[0032] The portion of the inner tube located in the air outlet cavity is provided with a muffler hole; and / or,

[0033] The size of the air inlet cavity in the first direction is H1, and the length of the inner tube in the air inlet cavity is H2, wherein 0.5H1≤H2≤0.8H1; and / or,

[0034] The size of the air outlet cavity in the first direction is H3, and the length of the inner tube in the air outlet cavity is H4, wherein 0.5H3≤H4≤0.8H3.

[0035] To achieve the above objectives, the present application also proposes a compressor, comprising any muffler as described above.

[0036] To achieve the above objectives, the present application also proposes a refrigeration device, comprising the compressor as described above.

[0037] The technical solution of the present invention is to arrange a silencer structure in the silencer pipe, and the silencer structure includes at least one guide portion, the guide portion has a windward surface facing the air inlet, and a leeward surface facing the air outlet, and the windward surface and the leeward surface are both inclined in a direction gradually approaching the air outlet, so that when the compressor inhales air, the fluid enters from the air inlet of the pipe body, and at this time, it is guided by the windward surface of the guide portion to flow toward the air outlet of the pipe body, and after the compressor completes the intake, the intake valve closes the intake port of the compressor cylinder, and at this time, the fluid remaining in the muffler will be discharged from the muffler The air outlet of the pipe body flows toward the air inlet of the pipe body, causing backflow. During this process, part of the fluid will contact the leeward side of the guide portion. Since the leeward side is inclined in a direction gradually approaching the air outlet, the flow direction of this part of the fluid will be changed to flow toward the air outlet of the pipe body, thereby blocking other backflowing fluid, achieving a cross-section of the fluid, and slowing down the backflow of the fluid in the muffler. When the compressor is inhaled next time, the fluid in the muffler will be more than the fluid in the existing muffler, avoiding repeated inhalation of this part of the fluid, thereby improving the suction efficiency of the compressor. In addition, since the guide portion is provided in the pipe body, the flow path of part of the fluid in the pipe body will be longer, and the energy consumed will also be greater. In addition, the flow direction of this part of the fluid will also change, and during the change process, the energy of the noise will also be consumed. Therefore, when the compressor is inhaled, the silencer pipe has a better muffler effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0039] Figure 1 This is a schematic structural diagram of an embodiment of the muffler pipe provided by the present invention during air intake;

[0040] Figure 2 for Figure 1 Schematic diagram of the structure of the middle muffler pipe after the compressor completes suction;

[0041] Figure 3 A schematic structural diagram of an embodiment of a muffler provided by the present utility model;

[0042] Figure 4 A side view of the muffler provided by the utility model;

[0043] Figure 5 for Figure 4Cross-section at AA;

[0044] Figure 6 for Figure 5 Cross-section at the middle BB;

[0045] Figure 7 for Figure 4 A cross-sectional view of the muffler at the guide portion;

[0046] Figure 8 for Figure 4 Cross-sectional view of the muffler at the diversion part.

[0047] Description of Figure Numbers:

[0048] 100. Silencer; 1. Tube body; 11. Air inlet; 12. Air outlet; 2. Silencer structure; 21. Flow guide; 22. First flow hole; 23. Diverter; 24. Flow gap; 25. Second flow hole; 26. Windward side; 27. Leeward side.

[0049] 200, muffler; 110, housing; 120, connecting pipe; 121, air inlet pipe; 122, air outlet pipe; 123, inner tube.

[0050] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0052] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0053] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0054] Currently, during the suction process of the compressor, the fluid is first sucked into the suction muffler, and then the fluid is introduced into the cylinder of the compressor through the air outlet of the suction muffler. After the suction is completed, the fluid remaining in the suction muffler will flow back out from the air inlet pipe of the suction muffler. When the next suction starts, the compressor needs to repeatedly suck the refluxed fluid into the suction muffler, which increases the energy consumption of the compressor and reduces its efficiency.

[0055] The present invention proposes a muffler pipe 100, please refer to Figure 1 and Figure 2 In one embodiment of the present utility model, the silencer pipe 100 includes a pipe body 1 and a silencer structure 2, the pipe body 1 is provided with an air inlet 11 and an air outlet 12; the silencer structure 2 is arranged in the pipe body 1 and is located between the air inlet 11 and the air outlet 12, the silencer structure 2 includes at least one guide portion 21, one end of the guide portion 21 is fixedly connected to the pipe body 1, and the other end is spaced from the pipe body 1, the guide portion 21 has a windward surface 26 facing the air inlet 11, and a leeward surface 27 facing the air outlet; wherein, in the direction approaching the air outlet 12, the windward surface 26 and the leeward surface 27 are both inclined in a direction gradually approaching the air outlet 12.

[0056] The technical solution of the present invention is to set a silencer structure 2 in the silencer pipe 100, and the silencer structure 2 includes at least one guide portion 21, the guide portion 21 has a windward surface 26 facing the air inlet 11, and a leeward surface 27 facing the air outlet, and the windward surface 26 and the leeward surface 27 are both inclined in a direction gradually approaching the air outlet 12, so that when the compressor inhales air, the fluid enters from the air inlet 11 of the pipe body 1, and at this time, it is guided by the windward surface 26 of the guide portion 21, allowing the fluid to flow toward the air outlet 12 of the pipe body 1, and after the compressor completes the suction, the suction valve closes the suction port of the compressor cylinder, and at this time, the air remaining in the muffler 200 is The fluid will flow from the air outlet 12 of the tube body 1 to the air inlet 11 of the tube body 1, and backflow will occur. During this process, part of the fluid will contact the leeward side 27 of the guide part 21. Since the leeward side 27 is inclined in a direction gradually approaching the air outlet 12, the flow direction of this part of the fluid will be changed to flow toward the air outlet 12 of the tube body 1, thereby hindering other backflowing fluids, realizing the cross-section of the fluid, and slowing down the backflow of the fluid in the muffler 200. When the compressor inhales air next time, the fluid in the muffler 200 will be more than the fluid in the existing muffler 200, avoiding repeated inhalation of this part of the fluid, thereby improving the suction efficiency of the compressor.

[0057] Moreover, since a flow guide portion 21 is provided in the tube body 1, the flow path of part of the fluid in the tube body 1 will become longer, and the energy consumed will be more. Moreover, the flow direction of this part of the fluid will also change. In the process of change, the energy of the noise will also be consumed. Therefore, when the compressor inhales air, the silencer 100 has a better silencer effect.

[0058] Moreover, when passing through the other end of the guide portion 21, the cross-sectional area of ​​the fluid in the chamber changes, and it contracts at the other end, causing the sound waves to cancel each other out of phase, thereby consuming energy. After coming out of the other end, the fluid diffuses to the surroundings, further consuming energy.

[0059] It should be emphasized that the specific shape of the guide portion 21 is not restricted, and it can be plate-shaped, barrel-shaped, etc., which is not limited here. The guide portion 21 can be tilted as a whole or partially tilted, as long as it has a windward surface 26 and a leeward surface 27 that are tilted in a direction gradually approaching the air outlet 12. The number of the guide portions 21 is not limited, and there can be only one, or there can be multiple guide portions spaced apart along the axial direction of the tube body 1. When the guide portion 21 is plate-shaped, there can also be multiple guide portions circumferentially arranged along the tube body 1, etc., which is not limited here.

[0060] The other end of the flow guide portion 21 is spaced apart from the tube body 1 , thereby forming a main channel for the fluid to pass through on the cross section of the tube body 1 .

[0061] Furthermore, in one embodiment, the guide portion 21 extends along the circumference of the tube body 1 and is arranged in an annular shape. In this arrangement, the outer peripheral side of the ring forms one end of the guide portion 21, which is fixedly connected to the tube body 1, and the inner peripheral side of the ring forms the other end of the guide portion 21. In addition, the annular design can guide all fluids except those passing through the center hole in the middle of the ring to the center hole of the ring, which has a better guiding effect on the fluid. When the fluid flows from the air inlet 11 to the air outlet 12, the annular design can guide all fluids except those passing through the center hole in the middle of the ring to the center hole of the ring, thereby increasing the flow rate of the fluid at the center hole. In addition, after passing through the center hole, the fluid can diffuse to the surroundings again, thereby dissipating the energy it carries, making its silencing effect better. When the fluid flows from the air outlet 12 to the air inlet 11, due to the better guiding effect of the annular shape, more reverse fluid can be guided to the center hole, thereby improving its interception effect.

[0062] It should be emphasized that the shape of the ring is not limited to a regular circular ring, and the specific shapes of the outer and inner sides of the ring are not restricted. It can be a circular setting, an elliptical setting, or a square setting. It can be a regular shape or an irregular shape, etc., which is not limited here.

[0063] It can be understood that the annular center hole cannot be too large or too small. If it is too large, the cross-sectional change of the fluid when passing through the center hole is small, and the silencing effect is poor. In addition, the size of the center hole determines the amount of fluid that is not changed by the guide portion 21. The larger the center hole, the larger the amount of fluid that is not changed by the guide portion 21. Therefore, when the compressor is inhaling, the improvement of the intake noise is poor, and when the compressor is exhausted, the interception ability of the fluid in the muffler 200 is also poor. Of course, the area of ​​the center hole cannot be too small. If it is too small, the obstruction to the flow of the fluid during inhalation will be too great, which will also affect the intake efficiency of the compressor.

[0064] In one embodiment, the inner cavity cross-sectional area of ​​the tube body 1 is S1; the other end of the guide portion 21 is enclosed to form a first flow hole 22, and the area of ​​the first flow hole 22 is S2, 0.01S1≤S2≤0.36S1. Since S2 is greater than 0.01S1, the first flow hole 22 will not be too small, thereby ensuring that when the fluid flows from the air inlet 11 to the air outlet 12, the compressor's suction will not be hindered due to the first flow hole 22 being too small, and S2 is less than 0.36S1, thereby avoiding the first flow hole 22 being too large and having a poor reverse check effect on the fluid.

[0065] For details, please refer to Figure 7 , Figure 7 Schematic diagram of a cross section of the muffler pipe 100 being applied to the muffler 200. Figure 7 The area of ​​the large circle represented by the tube body 1 is S1, and the area of ​​the small circle formed by the first flow hole 22 is S2.

[0066] In a further embodiment, the guide portion 21 is arranged at an inclination with respect to the longitudinal direction of the tube body 1. With this arrangement, the guide portion 21 is arranged at an inclination as a whole, and the areas of the windward surface 26 and the leeward surface 27 can be made larger, which has a better silencing effect on the forward fluid, that is, the fluid when the compressor is inhaling, and a better interception effect on the reverse fluid, that is, the fluid flowing back after the compressor's suction port is closed.

[0067] The size of the inclination angle of the guide portion 21 is not limited and can be any angle from 0 to 90. It can be understood that the larger the inclination angle, the greater the angle of change in the direction of fluid flow when the compressor inhales, the more energy the corresponding fluid dissipates, and the better the silencer effect. When the compressor completes the intake, a large inclination angle can also ensure the interception effect on the fluid. However, if the inclination angle is too large, the guide portion 21 will hinder the intake too much when the compressor inhales, which in turn will affect the intake efficiency of the compressor. Therefore, in one embodiment, the inclination angle of the guide portion 21 is a, wherein 20°≤a≤60°. When a is greater than or equal to 20°, the inclination angle is large enough to ensure the silencer effect and interception effect, and improve the intake efficiency of the compressor. When a is less than or equal to 60°, the inclination angle will not be too large, thereby ensuring the intake efficiency of the compressor.

[0068] It should be emphasized that the muffler structure 2 may only include the guide portion 21. Of course, in other embodiments, it may also include a diversion portion 23. Please refer to Figure 8In one embodiment, the silencer structure 2 includes a diverter portion 23 located in the tube body 1, and the diverter portion 23 is located on the side of the guide portion 21 close to the air inlet 11, and is spaced apart from the guide portion 21. The diverter portion 23 has a first side end close to the inner wall of the tube body 1 and a second side end extending to the middle of the inner cavity of the tube body 1. At least a portion of the first side end of the diverter portion 23 is spaced apart from the inner wall of the tube body 1 to form a flow gap 24.

[0069] In the technical solution of this embodiment, by providing the diverter portion 23, at least a portion of the first side end of the diverter portion 23 is spaced from the inner wall of the tube body 1 to form a flow gap 24, so that when the fluid passes through the diverter portion 23, it can enter the gap between the diverter portion 23 and the guide portion 21 from the flow gap 24. When air is taken in, the amount of fluid guided by the guide portion 21 can be increased, so that when the compressor takes in air, more noise energy can be consumed, so that its noise reduction effect is better.

[0070] It should be emphasized that the diversion portion 23 can be arranged in an inclined manner or in a non-inclined manner, for example, vertically, horizontally, etc., which is not limited here. The flow gap 24 can include only one gap or multiple gaps. When multiple gaps are included, the sizes of the multiple gaps can be the same or different, which is not limited here.

[0071] The diverter portion 23 may be provided separately, for example, a separately provided plate, or may be formed by slotting on the circumference of the guide portion 21 , etc., which is not limited here.

[0072] Furthermore, in the technical solution of this embodiment, the gap between the diverter portion 23 and the guide portion 21 can also function as an expansion chamber, thereby reducing noise and silencing the fluid passing through the silencer pipe 100 .

[0073] The second side end of the diversion portion 23 extends to the middle of the inner cavity of the tube body 1. It can be directly extended to the center point of the inner cavity of the tube body 1, or extended to a position close to the center. As long as it extends toward the center point of the inner cavity of the tube body 1, it is not limited here.

[0074] For further information, please also refer to Figure 8The area of ​​the flow gap 24 cannot be too large or too small. If it is too large, the fluid will flow through the flow gap 24 and will be guided by the diverter 23 and the guide 21. The amount of fluid flowing directly through the first flow hole 22 of the guide 21 will be reduced. At this time, although the sound insulation effect is better, it will have a certain impact on the suction of the compressor. If the area is too small, less fluid will be added to the gap between the diverter 23 and the guide 21. When the compressor is inhaling, the improvement effect on the suction noise is poor. Therefore, in a further embodiment, the inner cavity cross-sectional area of ​​the tube body 1 is S1; the flow gap 24 The area of ​​the flow gap 24 is S3, wherein 0.18S1≤S3≤0.36S1. With this arrangement, the area of ​​the flow gap 24 is greater than or equal to 0.18S1, thereby ensuring that sufficient fluid can be diverted by the diverter 23 into the gap between the diverter 23 and the guide portion 21, and silenced by the expansion cavity formed by the diverter 23 and the guide portion 21, and then continue to flow downward from the first flow hole 22 under the action of the guide portion 21. The area of ​​the flow gap 24 is less than or equal to 0.36S1, which also avoids too much fluid being diverted by the diverter 23, affecting the suction efficiency of the compressor.

[0075] It should be noted that, when the flow gap 24 includes only one gap, S3 refers to the cross-sectional area of ​​one gap. When the flow gap 24 includes multiple gaps, such as Figure 8 As shown in FIG, the flow gap 24 includes four gaps, and the area S3 refers to the total area of ​​the four gaps.

[0076] At the same time, the diverter 23 is arranged in an annular shape, and the second side end of the diverter 23 defines a second flow hole 25. The area of ​​the second flow hole 25 is S4, wherein 0.01S1≤S4≤0.36S1.

[0077] The annular center hole cannot be too large or too small. If it is too large, the cross-section of the fluid will change little when passing through the center hole, and the silencer effect will be poor. In addition, the size of the center hole determines the amount of fluid that is not changed by the guide part 21. The larger the center hole, the larger the amount of fluid that is not changed by the guide part 21. Therefore, when the compressor is inhaling, the improvement of the suction noise is poor, and when the compressor is exhausted, the interception ability of the fluid in the muffler 200 is also poor. Of course, the area of ​​the center hole cannot be too small. If it is too small, the flow of the fluid will be greatly hindered during inhalation, which will also affect the suction efficiency of the compressor.

[0078] Since S4 is greater than 0.01S1, the second flow hole 25 will not be too small, thereby ensuring that when the fluid flows from the air inlet 11 to the air outlet 12, the compressor's suction will not be hindered due to the second flow hole 25 being too small. In addition, S4 is less than 0.36S1, thereby avoiding the second flow hole 25 being too large and having a poor reverse check effect on the fluid.

[0079] It can be understood that the first flow hole 22 and the second flow hole 25 can be set to the same size or different sizes, and can be set in alignment or staggered, which is not limited here. In a further embodiment, the second flow hole 25 is set relative to the first flow hole 22, so that when the compressor is inhaling, part of the fluid can flow directly from the second flow hole 25 to the first flow hole 22 of the guide part 21, reducing the intake obstruction to the compressor and ensuring the intake efficiency of the compressor.

[0080] Furthermore, in one embodiment, the diverter 23 is inclined in a direction gradually approaching the air outlet 12. With this arrangement, the diverter 23 can also play the role of the guide 21. When the compressor inhales air, part of the fluid enters the tube body 1 from the air inlet 11 of the tube body 1, and then diffuses to the surroundings. During the diffusion process, the energy of the noise is consumed, and part of the fluid directly enters the expansion cavity formed by the diverter 23 and the guide 21 from the second flow hole 25, and expands again to consume energy. Another part of the fluid is guided by the diverter 23 after contacting the diverter 23, and then enters the expansion cavity formed by the diverter 23 and the guide 21 from the second flow hole 25. Another part of the fluid directly enters the diverter 23 and the guide 21 from the flow gap 24. 1, the energy of the noise can be consumed to a great extent during the whole process, thereby improving the suction noise of the compressor. After the compressor completes the suction, the fluid in the muffler 200 flows from the air outlet 12 of the tube body 1 toward the air inlet 11. At this time, the diverter 23 can reverse the direction of a part of the fluid, and the flow direction of this part of the fluid will be changed to flow toward the air outlet 12 of the tube body 1, thereby hindering other reflux fluids, realizing the cross-section of the fluid, and slowing down the reflux phenomenon of the fluid in the muffler 200. Another part of the fluid flows through the flow gap 24 and is then reversed by the guide part 21. The flow direction of this part of the fluid will be changed to flow toward the air outlet 12 of the tube body 1, thereby hindering other reflux fluids, thereby improving the interception effect of the fluid in the muffler 200.

[0081] Furthermore, the diverter 23 and the guide 21 may be provided with only one or multiple, which is not limited here. It can be understood that when multiple are provided, the noise reduction effect on the intake noise and the interception effect on the countercurrent fluid are better. Therefore, in a further embodiment, the guide 21 and the diverter 23 are provided with multiple, and the multiple guides 21 and the diverter 23 are staggered in the length direction of the tube body 1. In this embodiment, by providing multiple guides 21 and multiple diverters 23, the noise reduction effect on the intake noise and the interception effect on the countercurrent fluid can be improved, and the multiple guides 21 and the diverter 23 are staggered in the length direction of the tube body 1, so that each of the guides 21 can form an expansion cavity with a diverter 23, thereby improving the noise reduction effect on the intake noise.

[0082] It should be noted that when the guide portion 21 and the diverter portion 23 are both provided with a plurality, they can be provided according to actual needs, for example, two, three, four, etc., which are not limited here. In a further embodiment, the guide portion 21 and the diverter portion 23 are both provided with at least five.

[0083] See also Figures 3 to 8 The present invention also proposes a muffler 200, which includes a shell 110 and a plurality of connecting pipes 120, wherein the plurality of connecting pipes 120 include an air inlet pipe 121 and an air outlet pipe 122, and at least one of the connecting pipes 120 is configured as the muffler pipe 100 described above. The specific structure of the muffler pipe 100 refers to the above embodiment. Since the muffler 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. In which, the silencer pipe 100 includes a pipe body 1 and a silencer structure 2, the pipe body 1 is provided with an air inlet 11 and an air outlet 12; the silencer structure 2 is arranged in the pipe body 1 and is located between the air inlet 11 and the air outlet 12, the silencer structure 2 includes at least one guide portion 21, one end of the guide portion 21 is fixedly connected to the pipe body 1, and the other end is spaced from the pipe body 1, the guide portion 21 has a windward surface 26 facing the air inlet 11, and a leeward surface 27 facing the air outlet; wherein, in the direction close to the air outlet 12, the windward surface 26 and the leeward surface 27 are both inclined in a direction gradually approaching the air outlet 12.

[0084] It should be emphasized that among the multiple connecting pipes, the air inlet pipe 121 can be configured as the silencer pipe 100, or the air outlet pipe 122 can be configured as the silencer pipe 100. When the silencer 200 has an inner tube 123, the inner tube 123 can also be configured as the silencer pipe 100, and so on. This is not limited here.

[0085] The technical solution of the present invention is to arrange a silencer pipe 100 in the silencer 200, and a silencer structure 2 is arranged in the silencer pipe 100, wherein the silencer structure 2 includes at least one guide portion 21, and the guide portion 21 has a windward surface 26 facing the air inlet 11, and a leeward surface 27 facing the air outlet, and the windward surface 26 and the leeward surface 27 are both inclined in a direction gradually approaching the air outlet 12, so that when the compressor inhales air, the fluid enters from the air inlet 11 of the tube body 1, and at this time, it is guided by the windward surface 26 of the guide portion 21, allowing the fluid to flow toward the air outlet 12 of the tube body 1, and after the compressor completes the suction, the suction valve closes the suction port of the compressor cylinder, and at this time, the air remaining in The fluid in the muffler 200 will flow from the air outlet 12 of the tube body 1 to the air inlet 11 of the tube body 1, and backflow will occur. During this process, part of the fluid will contact the leeward side 27 of the guide part 21. Since the leeward side 27 is inclined in a direction gradually approaching the air outlet 12, the flow direction of this part of the fluid will be changed to flow toward the air outlet 12 of the tube body 1, thereby hindering other backflowing fluids, realizing the cross-section of the fluid, and slowing down the backflow of the fluid in the muffler 200. When the compressor inhales air next time, the fluid in the muffler 200 will be more than the fluid in the existing muffler 200, avoiding repeated inhalation of this part of the fluid, thereby improving the suction efficiency of the compressor.

[0086] Moreover, since a flow guide portion 21 is provided in the tube body 1, the flow path of part of the fluid in the tube body 1 will become longer, and the energy consumed will be more. Moreover, the flow direction of this part of the fluid will also change. In the process of change, the energy of the noise will also be consumed. Therefore, when the compressor inhales air, the silencer 100 has a better silencer effect.

[0087] Moreover, when passing through the other end of the guide portion 21, the cross-sectional area of ​​the fluid in the chamber changes, and it contracts at the other end, causing the sound waves to cancel each other out of phase, thereby consuming energy. After coming out of the other end, the fluid diffuses to the surroundings, further consuming energy.

[0088] It should be noted that the specific implementation form of the shell 110 is not limited. It can be an integral setting or a plurality of modules spliced ​​together. In one embodiment, the shell 110 includes a first shell 110 and a second shell 110. One of the first shell 110 and the second shell 110 is provided with an assembly groove, and the other is provided with an assembly rib. Through the cooperation of the assembly groove and the assembly rib, the first shell 110 and the second shell 110 can be spliced ​​together to form a complete shell 110.

[0089] In a further embodiment, the shell 110 is formed with an air inlet cavity and an air outlet cavity, and a partition wall is formed between the air inlet cavity and the air outlet cavity; the multiple connecting pipes 120 also include an inner tube 123, which is installed on the partition wall and connects the air inlet cavity and the air outlet cavity; at least one of the inner tube 123, the air inlet pipe 121 and the air outlet pipe 122 is set as the silencer 100.

[0090] In the technical solution of this embodiment, a partition wall is provided in the shell 110, thereby forming an air inlet cavity and an air outlet cavity in the shell 110. With such a configuration, when the fluid enters the air inlet cavity from the air inlet pipe 121, a first-stage expansion and silencing can occur. Then, the fluid enters the air outlet cavity from the air inlet cavity through the inner tube 123, and a second-stage expansion and silencing is performed in the air outlet cavity, thereby improving the optimization of the suction noise of the compressor. Moreover, at least one of the inner tube 123, the air inlet pipe 121 and the air outlet pipe 122 is configured as the silencer 100, which can further optimize the suction noise and improve the phenomenon of countercurrent fluid reflux, thereby improving the suction efficiency of the compressor.

[0091] It should be noted that, when the inner tube 123 is configured as the silencer 100, the air inlet 11 of the silencer 100 is located in the air inlet cavity, and the air outlet 12 of the silencer 100 is located in the air outlet cavity; when the air inlet pipe 121 is configured as the silencer 100, the air outlet 12 of the silencer 100 is located in the air inlet cavity, and the air inlet 11 of the silencer 100 is located outside the muffler 200; when the air outlet pipe 122 is configured as the silencer 100, the air inlet 11 of the silencer 100 is located in the air outlet cavity, and the air outlet 12 of the silencer 100 is located outside the muffler 200.

[0092] At least one of the inner tube 123, the air inlet pipe 121 and the air outlet pipe 122 is set as the silencer 100, one of them may be set as the silencer 100, two of them may be set as the silencer 100, or all three may be set as the silencer 100, which is not limited here. The inner tube 123 may be set with only one or multiple, and so on, which is not limited here.

[0093] In a further embodiment, the intake pipe 121 and the inner tube 123 are configured as the muffler 100. When the inner tube 123 is configured as the muffler 100, after the compressor completes the intake, it can play a role of intercepting the fluid in the outlet cavity to a certain extent, hindering its flow into the intake cavity. The intake pipe 121 is configured as the muffler 100. When the fluid enters the intake pipe 121, it can be silenced by the muffler structure 2 in the intake pipe 121, thereby improving the muffler effect of the muffler 200. After the compressor completes the intake, when the fluid in the intake cavity flows out of the intake pipe 121, it can also be hindered by the muffler structure 2 in the intake pipe 121, playing a role of intercepting it, so that when the cylinder of the compressor starts to inhale next time, the fluid in the muffler 200 is more than the existing one.

[0094] At the same time, the outlet pipe 122 can be configured as the silencer 100, or it may not be configured as the silencer 100, which is not limited here. When it is configured as the silencer 100, since it is directly connected to the air intake of the compressor cylinder, the silencer structure 2 therein may affect the air intake efficiency of the compressor to a certain extent. Therefore, in one embodiment, the outlet pipe 122 is not configured as the silencer 100.

[0095] Furthermore, in order to improve the suction efficiency of the compressor, the air outlet 12 of the air inlet pipe 121 and the air inlet 11 of the inner tube 123 are at least partially arranged relative to each other. With this arrangement, a portion of the fluid flowing out of the air outlet 12 of the air inlet pipe 121 can directly enter the inner tube 123 from the air inlet 11 of the inner tube 123, so that this portion of the fluid can reach the suction port of the compressor more quickly, thereby improving the suction efficiency of the compressor.

[0096] It can be understood that at least part of them are relatively arranged, part of them can be relatively arranged, that is, aligned, and the other part of them can be staggered, that is, offset, or all of them can be relatively arranged. When all of them are relatively arranged, the suction efficiency of the compressor is best improved. Therefore, in one embodiment, the air outlet 12 of the air inlet pipe 121 and the air inlet 11 of the inner tube 123 are relatively arranged.

[0097] In addition, the distance between the air outlet 12 of the air inlet pipe 121 and the air inlet 11 of the inner tube 123 is not restricted and can be any value, which is not limited here. In a further embodiment, the distance between the air outlet 12 of the air inlet pipe 121 and the air inlet 11 of the inner tube 123 is 1 to 3 mm. When the distance is greater than or equal to 1 mm, the distance between the two can be avoided from being too close. A certain proportion of the fluid flowing out of the air inlet pipe 121 can be diffused and silenced in the air inlet cavity, and the remaining part directly enters the inner tube 123 from the air inlet 11 of the inner tube 123. When the distance between the air outlet 12 of the air inlet pipe 121 and the air inlet 11 of the inner tube 123 is less than or equal to 3 mm, the proportion of the fluid diffused in the air inlet cavity will not be too large, thereby ensuring the suction efficiency of the compressor.

[0098] In addition, the air outlet 12 of the inner tube 123 and the air inlet 11 of the air outlet pipe 122 can also be staggered or relatively arranged, which is not limited here. In one embodiment, the air outlet 12 of the inner tube 123 and the air inlet 11 of the air outlet pipe 122 are at least partially relatively arranged, so that a certain proportion of the fluid flowing out of the inner tube 123 can directly enter the air outlet pipe 122, thereby improving the suction efficiency of the compressor.

[0099] It can be understood that the air outlet 12 of the air inlet pipe 121 and the air inlet 11 of the inner tube 123 are at least partially arranged relative to each other; and / or, the distance between the air outlet 12 of the air inlet pipe 121 and the air inlet 11 of the inner tube 123 is 1 to 3 mm; and / or, the air outlet 12 of the inner tube 123 and the air inlet 11 of the air outlet pipe 122 are at least partially arranged relative to each other. The three technical solutions can be set one by one, two by two, or all three by one, which is not limited here.

[0100] The specific implementation form of the inner tube 123 is not limited, and can be an ordinary tube, for example, with openings at both ends, or can be set in other shapes, which are not limited here.

[0101] In one embodiment, the inner tube 123 is located at one end of the air inlet cavity and is in a closed configuration, and the air inlet 11 is opened on the side wall of the inner tube 123. With such a configuration, the shape of the pipeline in the entire inner tube 123 is L-shaped, so that the fluid can be redirected when flowing into the inner tube 123, consuming the energy it carries and enhancing the silencing effect on the fluid. In addition, with the L-shaped configuration, the air inlet 11 of the inner tube 123 can be better opposite to the air outlet 12 of the air inlet pipe 121.

[0102] Furthermore, a silencer hole is provided in the portion of the inner tube 123 located in the air outlet cavity. With this arrangement, part of the fluid can flow out of the silencer hole. Since the aperture of the silencer hole is smaller, the silencer effect is better.

[0103] In addition, the length of the inner tube 123 cannot be too long, otherwise the fluid will continue to flow in the inner tube 123, affecting the suction efficiency of the compressor, and the length of the inner tube 123 cannot be too short, otherwise the size of the air inlet cavity in the first direction is H1, and the length of the inner tube 123 located in the air inlet cavity is H2, wherein 0.5H1≤H2≤0.8H1; and / or, the size of the air outlet cavity in the first direction is H3, and the length of the inner tube 123 located in the air outlet cavity is H4, wherein 0.5H3≤H4≤0.8H3, so that the length of the inner tube 123 will not be too long or too short, thereby ensuring the suction efficiency and noise reduction effect of the compressor.

[0104] The present invention also proposes a compressor, including the muffler 200 as described above. The specific structure of the muffler 200 refers to the above embodiment. Since this compressor uses all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0105] The present invention also proposes a refrigeration device, including the compressor as described above. The specific structure of the compressor refers to the above embodiment. Since the refrigeration device uses all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0106] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A muffler pipe, characterized in that: include: a tube body, on which an air inlet and an air outlet are provided; as well as, a silencer structure disposed within the tube body and located between the air inlet and the air outlet, the silencer structure comprising at least a guide portion, one end of the guide portion being fixedly connected to the tube body and the other end being spaced apart from the tube body, the guide portion having a windward surface facing the air inlet and a leeward surface facing the air outlet; Wherein, in the direction close to the air outlet, the windward surface and the leeward surface are both inclined in a direction gradually approaching the air outlet.

2. The muffler pipe according to claim 1, wherein: The flow guide portion extends along the circumference of the tube body and is arranged in an annular shape.

3. The muffler pipe according to claim 2, characterized in that: The inner cross-sectional area of ​​the tube body is S1; The other end of the guide portion is enclosed to form a first flow hole, and the area of ​​the first flow hole is S2, 0.01S1≤S2≤0.36S1.

4. The muffler pipe according to any one of claims 1 to 3, characterized in that: The guide portion is arranged to be inclined with respect to the length direction of the tube body.

5. The muffler pipe according to claim 4, characterized in that: The inclination angle of the guide portion is a, wherein 20°≤a≤60°.

6. The muffler pipe according to claim 1, wherein: The silencer structure includes a diverter portion located in the tube body, the diverter portion is located on a side of the guide portion close to the air inlet, and is spaced apart from the guide portion. The diverter portion has a first side end close to the inner wall surface of the tube body and a second side end extending to the middle of the inner cavity of the tube body. At least a portion of the first side end of the diverter portion is spaced apart from the inner side wall of the tube body to form a flow gap.

7. The muffler pipe according to claim 6, characterized in that: The inner cross-sectional area of ​​the tube body is S1; The area of ​​the flow gap is S3, wherein 0.18S1≤S3≤0.36S1; and / or, The diverter portion is arranged in a ring shape, and a second side end of the diverter portion defines a second flow hole. The area of ​​the second flow hole is S4, wherein 0.01S1≤S4≤0.36S1.

8. The muffler pipe according to claim 6, characterized in that: The diverter is tilted in a direction gradually approaching the air outlet.

9. The muffler pipe according to claim 6, characterized in that: The diverter portion is arranged in an annular shape, and a second side end of the diverter portion defines a second flow hole; The guide portion extends along the circumference of the tube body and is arranged in an annular shape, and the other end of the guide portion encloses a first flow hole; The second flow hole is arranged opposite to the first flow hole.

10. The muffler pipe according to claim 6, characterized in that: A plurality of the flow guide portions and the flow diverter portions are provided, and the plurality of the flow guide portions and the flow diverter portions are staggered in the length direction of the tube body.

11. A muffler, characterized in that: include: case; A plurality of connecting pipes, wherein the plurality of connecting pipes include an air inlet pipe and an air outlet pipe, and at least one of the connecting pipes is configured as a silencer pipe as claimed in any one of claims 1 to 10.

12. The muffler according to claim 11, wherein: The shell is formed with an air inlet cavity and an air outlet cavity, and a partition wall is formed between the air inlet cavity and the air outlet cavity; The plurality of communicating tubes further include an inner insert tube, which is installed on the partition wall and connects the air inlet cavity and the air outlet cavity; At least one of the inner tube, the air inlet pipe, and the air outlet pipe is configured as the silencer pipe.

13. The muffler according to claim 12, wherein: The air inlet pipe and the inner insert pipe are both configured as the silencer pipe.

14. The muffler according to claim 12, wherein: The air outlet of the air inlet pipe and the air inlet of the inner tube are at least partially arranged opposite to each other; and / or, The distance between the air outlet of the air inlet pipe and the air inlet of the inner tube is 1 to 3 mm; and / or, The air outlet of the inner tube and the air inlet of the air outlet pipe are at least partially arranged opposite to each other.

15. The muffler according to claim 12, wherein: The inner tube is located at one end of the air inlet cavity and is closed, and the air inlet is opened on the side wall of the inner tube; and / or, The portion of the inner tube located in the air outlet cavity is provided with a muffler hole.

16. A compressor, characterized in that: Comprising the silencer according to any one of claims 11 to 15.

17. A refrigeration device, characterized in that: Comprising the compressor of claim 16.

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