Pump body structure and heat exchange equipment

Abstract

The invention provides a pump body structure and heat exchange equipment, the pump body structure comprises a shell, air cylinders, a first bearing, a second bearing and a silencer, the air cylinders are arranged in the shell, at least one air cylinder is arranged between the first bearing and the second bearing in the height direction of the shell, and exhaust channels are arranged among the first bearing, the air cylinders and the second bearing; the exhaust port of at least one air cylinder communicates with the exhaust channel, the silencer is arranged in the exhaust channel, a gap is formed between the outer circumferential face of the silencer and the inner circumferential face of the exhaust channel in a spaced mode, the silencer is provided with a first flow channel and an exhaust hole, the first flow channel communicates with the exhaust channel, and the first flow channel communicates with the gap through the exhaust hole. According to the pump body structure, the silencer is arranged in the exhaust channel, the exhaust holes communicating with the gap are formed in the peripheral face of the silencer, noise reduction is achieved, and the problem that high-frequency noise is generated in the exhaust process of a compressor in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field related to heat exchange equipment, and in particular to a pump body structure and heat exchange equipment. Background Art

[0002] In the field of rotary compressors, aerodynamic noise has always been a key factor affecting equipment performance and user experience. Traditional compressor silencer structures, particularly reactive silencers, can effectively suppress low- and mid-frequency noise, but their effectiveness against broadband, high-frequency noise is significantly insufficient. Microperforated silencers are currently highly favored for their superior performance in high-frequency noise reduction, but their practical application in compressors is somewhat limited. Existing solutions, such as the double-layer silencer design, can reduce high-frequency noise to a certain extent, but this design increases space requirements and may cause the motor to lift, affecting the compressor's structural stability and modal characteristics. Furthermore, the first layer of silencer, which can only exhaust air through micropores, may interfere with the compressor's exhaust performance, especially in small compressors. Other solutions attempt to add an exhaust channel between the two layers of silencer to ensure proper air flow, but this can weaken the microperforated silencer's effectiveness by disrupting the effective conversion of sound waves within the micropores.

[0003] In the prior art, the exhaust passage design of the compressor pump body is usually a straight or slightly curved passage, the main purpose of which is to guide the high-pressure gas to be discharged quickly from the cylinder, while ignoring the impact of the high-frequency noise generated in this process on the environment.

[0004] As can be seen from the above, the compressor in the prior art has the problem of generating high-frequency noise during the exhaust process. Summary of the Invention

[0005] The main purpose of the present invention is to provide a pump body structure and a heat exchange device to solve the problem of high-frequency noise generated by the compressor during the exhaust process in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a pump body structure is provided, which includes a shell, a cylinder, a first bearing, a second bearing and a muffler. The cylinder is arranged inside the shell, and along the height direction of the shell, at least one cylinder is arranged between the first bearing and the second bearing. A connected exhaust channel is provided between the first bearing, the cylinder and the second bearing. The exhaust port of at least one cylinder is connected to the exhaust channel. The muffler is arranged inside the exhaust channel, and a gap is formed between the outer peripheral surface of the muffler and the inner peripheral surface of the exhaust channel. The muffler is provided with a first flow channel and an exhaust hole. The first flow channel is connected to the exhaust channel, and the first flow channel is connected to the gap through the exhaust hole.

[0007] Furthermore, the exhaust passage extends in a height direction of the shell; and / or the muffler and the exhaust passage extend in the same direction; and / or the extension length of the muffler is not greater than the extension length of the exhaust passage.

[0008] Furthermore, along the height direction of the shell, the second bearing is arranged above the first bearing, one end of the exhaust channel arranged on the first bearing is formed as an inlet end, and one end of the exhaust channel arranged on the second bearing is formed as an outlet end, and the gas discharged from the exhaust port of at least one cylinder flows through the inlet end, the muffler and the outlet end in sequence.

[0009] Furthermore, there is one cylinder, at least a portion of the muffler is arranged inside the exhaust passage located in the cylinder, the first bearing has a first connecting hole, and the exhaust port of the cylinder is connected to the inlet end through the first connecting hole.

[0010] Furthermore, there are multiple cylinders, which are arranged between the first bearing and the second bearing along the height direction of the shell. The pump body structure also includes a partition, which is arranged between two adjacent cylinders along the height direction of the shell, and a part of the exhaust channel is arranged on the partition.

[0011] Further, the multiple cylinders include a first cylinder and a second cylinder, the second cylinder is arranged between the first cylinder and the second bearing, the partition has a vent hole, the exhaust port of the second cylinder is connected to the exhaust port of the first cylinder through the vent hole, the first bearing has a first connecting hole, the exhaust port of the first cylinder is connected to the inlet end through the first connecting hole; or the second cylinder is arranged between the first cylinder and the second bearing, the second bearing has a second connecting hole, the exhaust port of the second cylinder is connected to the second connecting hole, the first bearing has a first connecting hole, and the exhaust port of the first cylinder is connected to the inlet end through the first connecting hole.

[0012] Furthermore, the silencer is a columnar structure extending along the height direction of the shell, the columnar structure forms a columnar first flow channel, the end opening of the silencer is one of circular, polygonal, and elliptical; and / or the thickness of the silencer is 1 mm.

[0013] Furthermore, a plurality of exhaust holes are provided, and the plurality of exhaust holes are spaced apart along the axial direction and / or circumferential direction of the muffler; and / or the opening of the exhaust hole is at least one of circular, polygonal and elliptical.

[0014] Furthermore, the opening of the exhaust hole is circular, the diameter d of the exhaust hole satisfies 0.5mm≤d≤5mm, the interval between two adjacent exhaust holes is l, and the perforation rate is , the perforation rate ε satisfies 1%≤ε≤6%.

[0015] Furthermore, the exhaust passage includes a first part and a second part which are connected to each other, the muffler is arranged in the second part, a gap is formed between the second part and the muffler, and the projection of the first part along the height direction of the shell is located inside the projection of the second part.

[0016] Furthermore, the first part is cylindrical; and / or the second part is waist-shaped.

[0017] Furthermore, the connection between the first part and the second part has a first support surface extending along the height direction of the shell and a second support surface arranged perpendicular to the first support surface. The outer peripheral surface of the muffler abuts the first support surface, and the two ends of the muffler abut against the second support surface.

[0018] Furthermore, the pump body structure also includes a sound absorbing member, which is arranged in the gap and is used to silence the airflow flowing from the exhaust hole to the gap.

[0019] Furthermore, the sound absorbing member is made of breathable sound absorbing material and is arranged on the inner peripheral surface of the exhaust channel, opposite to the exhaust hole; and / or the sound absorbing member is arranged on the outer peripheral surface of the muffler, covering the exhaust hole.

[0020] According to another aspect of the present invention, a heat exchange device is provided, which includes the above-mentioned pump body structure.

[0021] Applying the technical solution of the present invention, the pump body structure includes a shell, a cylinder, a first bearing, a second bearing and a muffler. The cylinder is arranged inside the shell. Along the height direction of the shell, at least one cylinder is arranged between the first bearing and the second bearing. A connected exhaust channel is provided between the first bearing, the cylinder and the second bearing. The exhaust port of at least one cylinder is connected to the exhaust channel. The muffler is arranged inside the exhaust channel. The outer peripheral surface of the muffler and the inner peripheral surface of the exhaust channel are spaced apart to form a gap. The muffler is provided with a first flow channel and an exhaust hole. The first flow channel is connected to the exhaust channel, and the first flow channel is connected to the gap through the exhaust hole.

[0022] From the above, it can be seen that the pump body structure of the present application adopts a method of arranging a silencer inside the exhaust channel, and by arranging an exhaust hole connected to the gap on the outer peripheral surface of the silencer, when the gas discharged by the compressor flows through the silencer, part of the sound energy of the sound wave hitting the silencer is absorbed; part of the gas is discharged from the exhaust hole, and when the gas flows through the exhaust hole, the inner wall of the exhaust hole and the sound wave undergo friction and thermal vibration, and part of the sound energy is converted into heat energy, thereby reducing the feedback and transmission of the sound wave. The structural setting of the present application not only ensures the smoothness of the exhaust, but also achieves the effect of reducing noise, thereby overcoming the problem of noise generation in the compressor exhaust process in the prior art. The pump body structure of the present application can achieve the effect of reducing noise when the compressor is running.

[0023] The present application utilizes the space of the exhaust channel between the cylinder and the bearing to set up a muffler, which is suitable for settings with different pump body structures and helps to ensure the versatility of the setting; and the structural setting of the present application does not need to occupy space outside the pump body structure, saving additional space, ensuring the compactness of the pump body structure and the overall structure is simple, which is convenient for assembly.

[0024] In the present application, a gap is formed between the part of the exhaust channel that accommodates the muffler and the muffler, ensuring that the gas inside the muffler can flow out through the exhaust hole, thereby ensuring the smooth progress of gas silencing and improving the stability of the silencing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 A cross-sectional view of the pump structure of the present invention is shown, wherein one cylinder is provided;

[0027] Figure 2 An exploded view of the pump structure of the present invention is shown, wherein a plurality of cylinders are provided;

[0028] Figure 3 The present invention shows Figure 2 A cross-sectional view of the pump structure;

[0029] Figure 4 Shown Figure 3 A magnified view of point A;

[0030] Figure 5 A cross-sectional view of the pump structure of the present invention is shown, wherein a muffler is provided inside the portion of the exhaust passage located at the second cylinder;

[0031] Figure 6 A cross-sectional view of the pump structure of the present invention is shown, wherein the muffler is disposed inside the portion of the exhaust passage located at the partition;

[0032] Figure 7 A cross-sectional view of the pump structure of the present invention is shown, wherein a muffler is disposed inside a portion of the exhaust passage located at the first cylinder;

[0033] Figure 8 The figure shows a schematic structural diagram of the muffler of the present invention.

[0034] The above drawings include the following reference numerals:

[0035] 10. Cylinder; 110. First cylinder; 120. Second cylinder; 20. First bearing; 30. Second bearing; 40. Exhaust channel; 401. Inlet end; 402. Outlet end; 410. First part; 420. Second part; 430. Gap; 50. Muffler; 510. Exhaust hole; 60. Partition. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0038] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0039] In order to solve the problem of high-frequency noise generated by the compressor during the exhaust process in the prior art, the present invention provides a heat exchange device, which can specifically be an air conditioner, a refrigerator, etc. The heat exchange device can be used in household or industrial fields.

[0040] Among them, the heat exchange equipment includes a compressor, and the specific compressor can be a single-cylinder compressor or a multi-cylinder compressor. The compressor used in this application includes a pump body structure, and the corresponding pump body structure includes a cylinder 10 to form a single-cylinder compressor, or the pump body structure includes cylinders 10 of different sizes and specifications, and cylinders 10 of different specifications are combined to form a multi-cylinder compressor.

[0041] In the prior art, the design of the exhaust passage 40 of the pump body often focuses on smooth gas flow rather than noise control. The exhaust passage 40 is typically a straight or slightly curved channel, designed primarily to guide the high-pressure gas out of the cylinder 10 for rapid discharge, while ignoring the environmental impact of the high-frequency noise generated during this process. To improve this situation, some designs have attempted to add silencers to the pump body. However, this arrangement results in additional space, a complex design that increases production costs, or has an adverse impact on the compressor's exhaust efficiency.

[0042] In this embodiment, by setting the pump body structure, a muffler 50 is set inside the exhaust channel 40 of the pump body structure, which not only ensures the smooth exhaust of the cylinder 10, but also can achieve noise reduction of high-frequency noise through the cooperation of the muffler 50 and the exhaust channel 40. The muffler 50 of this application can achieve a sound attenuation of more than 50dB, which significantly improves the high-frequency noise problem generated when the compressor is running.

[0043] like Figures 1 to 8 As shown, the pump body structure includes a shell and a cylinder 10, a first bearing 20, a second bearing 30 and a muffler 50 arranged inside the shell. The first bearing 20 and the second bearing 30 are spaced apart along the height direction of the shell, and the axial directions of the first bearing 20 and the second bearing 30 are arranged in the same direction as the height direction of the shell. At least one cylinder 10 is arranged between the first bearing 20 and the second bearing 30 along the height direction of the shell. A connected exhaust channel 40 is provided between the first bearing 20, the cylinder 10 and the second bearing 30. The exhaust port of at least one cylinder 10 is connected to the exhaust channel 40. The muffler 50 is arranged inside the exhaust channel 40. The outer peripheral surface of the muffler 50 and the inner peripheral surface of the exhaust channel 40 are spaced apart to form a gap 430. The muffler 50 is provided with a first flow channel and an exhaust hole 510. The first flow channel is connected to the exhaust channel 40, and the first flow channel is connected to the gap 430 through the exhaust hole 510.

[0044] Among them, the first bearing 20, the cylinder 10 and the second bearing 30 are stacked in sequence along the height direction of the shell, and the first bearing 20, the cylinder 10 and the second bearing 30 respectively have a part of the exhaust channel 40 to form the exhaust channel 40 through multiple parts.

[0045] The pump body structure of the present application adopts a method of arranging a silencer 50 inside the exhaust channel 40, and by arranging an exhaust hole 510 connected to the gap 430 on the outer peripheral surface of the silencer 50, when the gas discharged from the compressor flows through the silencer 50, part of the sound energy of the sound wave hitting the silencer 50 is absorbed; part of the gas is discharged from the exhaust hole 510, and when the gas flows through the exhaust hole 510, the inner wall of the exhaust hole 510 and the sound wave rub and thermally vibrate, and part of the sound energy is converted into heat energy, thereby reducing the feedback and transmission of the sound wave. The structural setting of the present application not only ensures the smoothness of the exhaust, but also achieves the effect of reducing noise, thereby overcoming the problem of noise generation in the compressor exhaust process in the prior art. The pump body structure of the present application can achieve the effect of reducing noise when the compressor is running.

[0046] The present application utilizes the space within the exhaust passage 40 between the cylinder 10 and the bearing to accommodate the silencer 50. This configuration, which is applicable to various pump body structures, facilitates the versatility of the configuration. Furthermore, the present application's structural configuration does not require space outside the pump body structure, saving additional space and ensuring the compactness of the pump body structure. The overall structure is simple and convenient for assembly. In the present application, a gap 430 is formed between the portion of the exhaust passage 40 housing the silencer 50 and the silencer 50, ensuring that the gas within the silencer 50 can flow out through the exhaust hole 510, thereby ensuring smooth gas silencing and improving the stability of the silencing operation.

[0047] In this embodiment, the exhaust passage 40 extends along the height of the housing and is disposed on one side and parallel to the axis of the first bearing 20, cylinder 10, and second bearing 30. The structural arrangement of the exhaust passage 40 of the present application facilitates smooth gas discharge, thereby improving exhaust efficiency.

[0048] like Figures 1 to 7 As shown, along the height direction of the housing, the second bearing 30 is arranged above the first bearing 20, one end of the exhaust channel 40 provided on the first bearing 20 is formed as an inlet end 401, and one end of the exhaust channel 40 provided on the second bearing 30 is formed as an outlet end 402. The gas discharged from the exhaust port of at least one cylinder 10 flows through the inlet end 401, the muffler 50 and the outlet end 402 in sequence.

[0049] Part of the gas flowing through the muffler 50 will flow through the exhaust hole 510 to the gap 430 and then to the outlet end 402 to achieve a muffler effect.

[0050] like Figures 1 to 7 As shown, the silencer 50 extends in the same direction as the exhaust channel 40. The structure of the silencer 50 arranged in the same direction is conducive to ensuring that the main flow direction of the gas is not affected by the silencer 50, thereby ensuring the smoothness of the gas flow and the exhaust efficiency of the pump body structure.

[0051] Specifically, the muffler 50 is a columnar structure extending along the height direction of the shell, and the columnar structure forms a columnar first flow channel. The end opening of the muffler 50 can be one of circular, polygonal, and elliptical shapes. The end opening of the muffler 50 can also be other irregular shapes, which can be adaptively set according to the structure of the exhaust channel 40.

[0052] In this embodiment, the wall thickness of the muffler 50 is 1 mm, but it can be adaptively set according to needs, such as 1.5 mm, 2 mm, etc.

[0053] The silencer 50 of the present application adopts a columnar structure and is arranged in the same direction as the exhaust channel 40. The gas can enter the interior of the silencer 50 after passing through the inlet end 401 of the exhaust channel 40, and flows in the first flow channel inside the silencer 50. Part of the gas in the first flow channel flows directly to the outlet end 402 of the exhaust channel 40, and the other part flows to the gap 430 through the exhaust hole 510 and then flows to the outlet end 402.

[0054] In this embodiment, the extension length of the muffler 50 is not greater than the extension length of the exhaust channel 40, so that the gas discharged from the exhaust hole 510 of the muffler 50 is aligned with the gap 430 to achieve a sufficient silencing effect; at the same time, the muffler 50 is hidden inside the exhaust channel 40, which not only can achieve the purpose of protecting the muffler 50, but also can avoid the muffler 50 occupying the internal space of the pump body structure, thereby ensuring the compactness of the structure, and the muffler 50 does not need to occupy a specific installation space, which improves the applicability of the overall structure.

[0055] like Figure 1 、 Figure 3 、 Figures 5 to 7 As shown, the exhaust passage 40 includes a first portion 410 and a second portion 420 that are connected to each other, the muffler 50 is arranged in the second portion 420, and a gap 430 is formed between the second portion 420 and the muffler 50. The projection of the first portion 410 along the height direction of the shell is located inside the projection of the second portion 420.

[0056] Among them, relative to the first part 410, the second part 420 is formed into an expanded hole structure for installing the muffler 50, and a gap 430 is formed between the inner circumference of the second part 420 and the outer circumference of the muffler 50 to allow the gas inside the first flow channel of the muffler 50 to enter through the exhaust hole 510. The first part 410 and the second part 420 are connected to form the exhaust channel 40, so the gas inside the gap 430 eventually flows to the outlet end 402 of the exhaust channel 40.

[0057] Specifically, the first portion 410 is cylindrical, the second portion 420 is waist-shaped, and the projection of the first portion 410 along the height direction of the shell is located inside the outer edge of the projection of the second portion 420 along the height direction of the shell.

[0058] In this embodiment, if Figures 3 to 7 As shown, the second part 420 can be formed at any one or more positions of the exhaust channel 40. When there are multiple mufflers 50, the corresponding second part 420 is provided with multiple mufflers 50 for installing. Alternatively, one second part 420 can be provided with multiple mufflers 50 arranged along the height direction of the shell.

[0059] Among them, when there are multiple cylinders 10, the multiple cylinders 10 are arranged along the height direction of the shell, and a partition 60 is arranged between two adjacent cylinders 10. The partition 60 has a hole structure formed as a part of the exhaust channel 40, and the cylinder 10 and the partition 60 both have a part of the exhaust channel 40.

[0060] Specifically, the second portion 420 may be as follows Figure 3 The cylinder 10 and the partition 60 are formed by the parts shown; Figure 5 The portion corresponding to the cylinder 10 located on the upper side along the height direction of the housing is formed as the second portion 420; it can also be as shown in FIG. Figure 6 The portion corresponding to the partition 60 shown forms the second portion 420; it can also be as follows Figure 7 The portion corresponding to the cylinder 10 located at the lower side in the height direction of the housing is formed as the second portion 420 .

[0061] In this embodiment, the connection point between the first part 410 and the second part 420 has a first support surface extending along the height direction of the shell and a second support surface arranged perpendicular to the first support surface. The outer peripheral surface of the muffler 50 abuts against the first support surface, and the two ends of the muffler 50 abut against the second support surface.

[0062] Among them, along the extension direction of the exhaust channel 40, the top and bottom ends of the second part 420 are both provided with the first part 410, so that the top and bottom ends of the second part 420 are connected to the first part 410, and the corresponding top and bottom ends of the first part 410 both have a first supporting surface, and the top and bottom ends of the first part 410 both have a second supporting surface, the two second supporting surfaces are opposite and parallel, and the two first supporting surfaces are coaxial.

[0063] When the silencer 50 of the present application is installed, its outer peripheral surface abuts against the first supporting surface to form a surface-to-surface structure, and the top end surface and the bottom end surface of the silencer 50 abut against the second supporting surface to form a surface-to-surface structure, thereby realizing the limited installation of the silencer 50. The structural setting of the first supporting surface and the second supporting surface of the present application ensures the stability of the installation of the silencer 50, thereby ensuring the effect of silencing and reducing noise.

[0064] like Figure 8 As shown, the muffler 50 is provided with a plurality of exhaust holes 510 , which are formed as micro holes for reducing noise. The muffler 50 reduces the noise of the gas flowing inside the exhaust channel 40 by providing the plurality of exhaust holes 510 .

[0065] The muffler 50 is a cylindrical structure, and a plurality of exhaust holes 510 are arranged at intervals along the axial direction and the circumferential direction of the muffler 50 . The plurality of exhaust holes 510 are all connected to the gap 430 .

[0066] Specifically, the multiple exhaust holes 510 arranged along the axial direction of the muffler 50 are arranged at equal intervals, and the multiple exhaust holes 510 arranged along the circumferential direction of the muffler 50 are arranged at equal intervals, thereby forming multiple exhaust holes 510 that are evenly distributed, which is beneficial to improving the noise reduction effect.

[0067] Of course, the structural setting of the multiple exhaust holes 510 of the present application is not limited to the above-mentioned structural setting. The multiple exhaust holes 510 can also be arranged only along the axial direction of the muffler 50; or the multiple exhaust holes 510 can be arranged only along the circumferential direction of the muffler 50.

[0068] In this embodiment, the opening of the exhaust hole 510 is at least one of a circular, polygonal and elliptical shape. The multiple exhaust holes 510 can be structures of the same shape or can be formed by combining multiple structures of different shapes.

[0069] The multiple exhaust holes 510 of the present application adopt a circular structure and are extended along the radial direction of the muffler 50, which is beneficial to improving the noise reduction effect.

[0070] The opening of the exhaust hole 510 is circular, the diameter d of the exhaust hole 510 satisfies 0.5mm≤d≤5mm, the interval between two adjacent exhaust holes 510 is l, and the perforation rate is , the perforation rate ε satisfies 1%≤ε≤6%.

[0071] In this embodiment, the diameter of the exhaust hole 510 is 1 mm, and the distance between two adjacent exhaust holes 510 is 4 mm. Of course, it can also be other sizes. For example, the diameter of the exhaust hole 510 is 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc. The hole spacing is set according to actual needs.

[0072] In order to further improve the silencing and noise reduction effect of the present application, the pump body structure further includes a sound absorbing member, which is arranged in the gap 430 to silence the airflow flowing from the exhaust hole 510 to the gap 430.

[0073] The sound absorbing member is made of breathable sound absorbing material to mute the airflow flowing from the exhaust hole 510 to the gap 430 .

[0074] Specifically, as gas flows through the sound-absorbing element, it absorbs sound waves, thereby achieving sound attenuation. The sound-absorbing element can be positioned on the inner circumference of the exhaust passage 40, opposite the exhaust hole 510, to ensure that airflow flowing toward the gap 430 is silenced after impacting the sound-absorbing element. Alternatively, the sound-absorbing element can be positioned on the outer circumference of the muffler 50, covering the exhaust hole 510, to ensure that gas flowing through the exhaust hole 510 completely passes through the sound-absorbing element.

[0075] In this embodiment, there may be one or more cylinders 10 .

[0076] In such Figure 1 In the specific embodiment shown, the cylinder 10 is provided as one, at least a portion of the muffler 50 is provided inside the portion of the exhaust passage 40 located in the cylinder 10, the first bearing 20 has a first connecting hole, and the exhaust port of the cylinder 10 is connected to the inlet end 401 through the first connecting hole.

[0077] Among them, along the height direction of the shell, the first bearing 20 is arranged below the cylinder 10, and the gas flowing out of the first connecting hole of the first bearing 20 enters the inlet end 401 of the exhaust channel 40 and then flows into the interior of the muffler 50.

[0078] Specifically, arranging the muffler 50 on the cylinder 10 is conducive to installing and positioning the muffler 50 through the first bearing 20 and the second bearing 30, so as to ensure the stability of the installation of the muffler 50 while ensuring the silencing and noise reduction of the exhaust gas of the pump body structure.

[0079] In this embodiment, the portion of the exhaust channel 40 located on the cylinder 10 is the second portion 420 , and the portion of the exhaust channel 40 located on the first bearing 20 and the second bearing 30 is the first portion 410 . The first bearing 20 and the second bearing 30 cooperate to position the muffler 50 inside the exhaust channel 40 .

[0080] In a specific embodiment not shown in the figure, a plurality of cylinders 10 are provided, and the plurality of cylinders 10 are arranged between the first bearing 20 and the second bearing 30 along the height direction of the shell. The pump body structure also includes a partition 60, and the partition 60 is arranged between two adjacent cylinders 10 along the height direction of the shell. A portion of the exhaust channel 40 is provided on the partition 60.

[0081] The partition plate 60 also has a portion forming the exhaust passage 40 , and two adjacent cylinders 10 abut against both sides of the partition plate 60 along the height direction of the shell.

[0082] Specifically, the multiple cylinders 10 include a first cylinder 110 and a second cylinder 120, the second cylinder 120 is arranged between the first cylinder 110 and the second bearing 30, the partition 60 has a vent hole, the exhaust port of the second cylinder 120 is connected to the exhaust port of the first cylinder 110 through the vent hole, and the exhaust port of the first cylinder 110 is connected to the inlet end 401 through the first connecting hole.

[0083] In this embodiment, the second cylinder 120 is arranged above the first cylinder 110 along the height direction of the shell, and the exhaust directions of the first cylinder 110 and the second cylinder 120 are both set toward the first bearing 20, so as to enter the inlet end 401 of the exhaust channel 40 through the first connecting hole on the first bearing 20, thereby achieving the purpose of silencing and reducing the noise of the gas discharged from the first cylinder 110 and the second cylinder 120 of the pump body structure through the cooperation of the muffler 50 and the exhaust channel 40, which is beneficial to improving the effect of silencing and reducing the noise.

[0084] In this embodiment, one or more first cylinders 110 may be provided. When there are multiple first cylinders 110, the multiple first cylinders 110 are stacked along the height direction of the shell, wherein a partition 60 is provided between two adjacent first cylinders 110, and gas communication is achieved through the partition 60. One or more second cylinders 120 may be provided. When there are multiple second cylinders 120, the multiple second cylinders 120 are stacked along the height direction of the shell, wherein a partition 60 is provided between two adjacent second cylinders 120, and gas communication is achieved through the partition 60. In this application, the cylinders 10 and partitions 60 arranged sequentially along the height direction of the shell exhaust in the same direction, thereby ensuring that the gas exhausted from all cylinders 10 passes through the muffler 50.

[0085] In such Figures 2 to 7 In the specific embodiment shown, a plurality of cylinders 10 are provided, and the plurality of cylinders 10 are arranged between the first bearing 20 and the second bearing 30 along the height direction of the shell. The pump body structure also includes a partition 60, and the partition 60 is arranged between two adjacent cylinders 10 along the height direction of the shell. A portion of the exhaust channel 40 is provided on the partition 60.

[0086] The partition plate 60 also has a portion forming the exhaust passage 40 , and two adjacent cylinders 10 abut against both sides of the partition plate 60 along the height direction of the shell.

[0087] Specifically, the multiple cylinders 10 include a first cylinder 110 and a second cylinder 120. The second cylinder 120 is arranged between the first cylinder 110 and the second bearing 30. The second bearing 30 has a second connecting hole. The exhaust port of the second cylinder 120 is connected to the second connecting hole. The exhaust port of the first cylinder 110 is connected to the inlet end 401 through the first connecting hole.

[0088] In this embodiment, when both the first cylinder 110 and the second cylinder 120 are provided as one, no vent hole is provided on the partition plate 60 between the first cylinder 110 and the second cylinder 120 along the height direction of the housing.

[0089] In this embodiment, the second cylinder 120 is disposed above the first cylinder 110 along the height direction of the housing. Therefore, the gas in the second cylinder 120 is discharged through the second communication hole of the second bearing 30 and mixed with the gas discharged from the outlet end 402 of the exhaust passage 40. The gas discharged from the interior of the first cylinder 110 of the present invention flows through the first communication hole in the first bearing 20 to the inlet end 401 of the exhaust passage 40.

[0090] Among them, when there are multiple first cylinders 110 and second cylinders 120, the exhaust ports of the multiple first cylinders 110 are connected to the inlet end 401 of the exhaust channel 40 through the first connecting hole of the first bearing 20; the multiple second cylinders 120 can all be exhausted through the second connecting hole on the second bearing 30, or the gas of the first part of the second cylinders 120 flows to the first cylinder 110 and then connects to the inlet end 401 of the exhaust channel 40 through the first connecting hole of the first bearing 20; the gas discharged from the second part of the second cylinders 120 flows out through the second connecting hole on the second bearing 30, wherein the first part of the second cylinders 120 are located below the second part of the second cylinders 120 along the height direction of the shell.

[0091] In this embodiment, a plurality of first cylinders 110 and a plurality of second cylinders 120 are provided, and the plurality of first cylinders 110 are stacked along the height direction of the shell, and the plurality of second cylinders 120 are stacked along the height direction of the shell, wherein a partition 60 is provided between two adjacent first cylinders 110 and two adjacent second cylinders 120, and gas communication is achieved through the partition 60 to achieve smooth exhaust.

[0092] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0093] The pump body structure of the present application adopts a method of arranging a silencer 50 inside the exhaust channel 40, and by arranging an exhaust hole 510 connected to the gap 430 on the outer peripheral surface of the silencer 50, when the gas discharged from the compressor flows through the silencer 50, part of the sound energy of the sound wave hitting the silencer 50 is absorbed; part of the gas is discharged from the exhaust hole 510, and when the gas flows through the exhaust hole 510, the inner wall of the exhaust hole 510 and the sound wave rub and thermally vibrate, and part of the sound energy is converted into heat energy, thereby reducing the feedback and transmission of the sound wave. The structural setting of the present application not only ensures the smoothness of the exhaust, but also achieves the effect of reducing noise, thereby overcoming the problem of noise generation in the compressor exhaust process in the prior art. The pump body structure of the present application can achieve the effect of reducing noise when the compressor is running.

[0094] The present application utilizes the space of the exhaust channel 40 between the cylinder 10 and the bearing to set the muffler 50, which is suitable for settings with different pump body structures and is conducive to ensuring the versatility of the setting; and the structural setting of the present application does not need to occupy space outside the pump body structure, saving additional space, ensuring the compactness of the pump body structure and the overall structure is simple, which is convenient for assembly.

[0095] In the present application, a gap 430 is formed between the portion of the exhaust channel 40 that accommodates the muffler 50 and the muffler 50, ensuring that the gas inside the muffler 50 can flow out through the exhaust hole 510, thereby ensuring smooth gas muffler operation and improving the stability of the muffler operation.

[0096] Obviously, the embodiments described above 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 should fall within the scope of protection of the present invention.

[0097] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0098] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0099] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A pump body structure, characterized in that: The pump body structure comprises: case; A cylinder (10), the cylinder (10) being arranged inside the housing; A first bearing (20) and a second bearing (30), along a height direction of the housing, at least one of the cylinders (10) is arranged between the first bearing (20) and the second bearing (30), an exhaust passage (40) is provided in communication between the first bearing (20), the cylinder (10) and the second bearing (30), and an exhaust port of at least one of the cylinders (10) is in communication with the exhaust passage (40); A muffler (50) is arranged inside the exhaust passage (40), and a gap (430) is formed between the outer peripheral surface of the muffler (50) and the inner peripheral surface of the exhaust passage (40). The muffler (50) is provided with a first flow channel and an exhaust hole (510), the first flow channel is connected to the exhaust passage (40), and the first flow channel is connected to the gap (430) through the exhaust hole (510).

2. The pump structure according to claim 1, characterized in that: The exhaust passage (40) extends along the height direction of the housing; and / or The muffler (50) extends in the same direction as the exhaust passage (40); and / or The extension length of the muffler (50) is not greater than the extension length of the exhaust passage (40).

3. The pump structure according to claim 1, characterized in that: Along the height direction of the housing, the second bearing (30) is arranged above the first bearing (20), one end of the portion of the exhaust channel (40) arranged on the first bearing (20) is formed as an inlet end (401), and one end of the portion of the exhaust channel (40) arranged on the second bearing (30) is formed as an outlet end (402), and gas discharged from the exhaust port of at least one of the cylinders (10) flows through the inlet end (401), the muffler (50), and the outlet end (402) in sequence.

4. The pump structure according to claim 3, characterized in that: The cylinder (10) is provided as one, at least a portion of the muffler (50) is provided inside a portion of the exhaust passage (40) located in the cylinder (10), the first bearing (20) has a first communicating hole, and the exhaust port of the cylinder (10) is communicated with the inlet end (401) through the first communicating hole.

5. The pump structure according to claim 3, characterized in that: A plurality of cylinders (10) are provided, and the plurality of cylinders (10) are provided between the first bearing (20) and the second bearing (30) along the height direction of the housing. The pump body structure further comprises a partition (60), and the partition (60) is provided between two adjacent cylinders (10) along the height direction of the housing. A portion of the exhaust passage (40) is provided on the partition (60).

6. The pump structure according to claim 5, characterized in that: The plurality of cylinders (10) include a first cylinder (110) and a second cylinder (120), The second cylinder (120) is arranged between the first cylinder (110) and the second bearing (30), the partition (60) has a vent hole, the exhaust port of the second cylinder (120) is connected to the exhaust port of the first cylinder (110) through the vent hole, the first bearing (20) has a first communicating hole, the exhaust port of the first cylinder (110) is connected to the inlet end (401) through the first communicating hole; or The second cylinder (120) is arranged between the first cylinder (110) and the second bearing (30), the second bearing (30) has a second communicating hole, the exhaust port of the second cylinder (120) is communicated with the second communicating hole, the first bearing (20) has a first communicating hole, the exhaust port of the first cylinder (110) is communicated with the inlet end (401) through the first communicating hole.

7. The pump structure according to any one of claims 1 to 6, characterized in that: The muffler (50) is a columnar structure extending along the height direction of the shell, and the columnar structure forms the first columnar flow channel. The end opening of the muffler (50) is in one of the shapes of circular, polygonal, and elliptical; and / or The thickness of the muffler (50) is 1 mm.

8. The pump structure according to any one of claims 1 to 6, characterized in that: A plurality of the exhaust holes (510) are provided, and the plurality of exhaust holes (510) are spaced apart along the axial direction and / or circumferential direction of the muffler (50); and / or The opening of the exhaust hole (510) is at least one of circular, polygonal and elliptical.

9. The pump structure according to any one of claims 1 to 6, characterized in that: The opening of the exhaust hole (510) is circular, the diameter d of the exhaust hole (510) satisfies 0.5 mm ≤ d ≤ 5 mm, the interval between two adjacent exhaust holes (510) is l, and the perforation rate is , the perforation rate ε satisfies 1%≤ε≤6%.

10. The pump structure according to any one of claims 1 to 6, characterized in that: The exhaust passage (40) comprises a first portion (410) and a second portion (420) which are connected to each other, the muffler (50) is arranged in the second portion (420), the gap (430) is formed between the second portion (420) and the muffler (50), and the projection of the first portion (410) along the height direction of the shell is located inside the projection of the second portion (420).

11. The pump structure according to claim 10, characterized in that: The first portion (410) is cylindrical; and / or The second portion (420) is in the shape of a waist-shaped hole.

12. The pump structure according to claim 10, characterized in that: The connection point between the first part (410) and the second part (420) comprises a first supporting surface extending along the height direction of the shell and a second supporting surface arranged perpendicular to the first supporting surface; the outer peripheral surface of the muffler (50) abuts against the first supporting surface, and both ends of the muffler (50) abut against the second supporting surface.

13. The pump structure according to any one of claims 1 to 6, characterized in that: The pump body structure further comprises a sound absorbing member, which is arranged in the gap (430) and is used to silence the airflow flowing from the exhaust hole (510) to the gap (430).

14. The pump structure according to claim 13, characterized in that: The sound absorbing member is made of breathable sound absorbing material. The sound absorbing member is arranged on the inner peripheral surface of the exhaust passage (40), and is arranged opposite to the exhaust hole (510); and / or The sound absorbing member is arranged on the outer peripheral surface of the muffler (50), and the sound absorbing member covers the exhaust hole (510).

15. A heat exchange device, characterized in that: The heat exchange device comprises the pump body structure according to any one of claims 1 to 14.

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