Compressor and refrigeration apparatus
By introducing a flow-diverting structure into the refrigerator compressor, high-pressure gas is diverted to two exhaust buffer chambers, solving the noise and energy loss problems caused by the throttling structure, and achieving noise reduction and increased cooling capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ANHUI MEIZHI COMPRESSOR CO LTD
- Filing Date
- 2024-12-27
- Publication Date
- 2026-06-30
AI Technical Summary
The throttling structure of existing refrigerator compressors reduces airflow pulse noise, but at the same time, it leads to greater flow resistance and energy loss, affecting refrigeration efficiency and cooling capacity.
A compressor is designed with a flow-splitting structure, in which first and second flow-splitting surfaces are set in the first exhaust buffer chamber. High-pressure gas is split into two connecting holes through the flow-splitting structure and flows into the first and second exhaust buffer chambers respectively, reducing pulsation noise and maintaining smoothness.
It effectively reduces compressor operating noise, minimizes throttling losses, improves cooling capacity and efficiency, and ensures smooth flow of high-pressure gas.
Smart Images
Figure CN122304967A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of compressor equipment technology, and more specifically, to a compressor and a refrigeration device. Background Technology
[0002] Currently, refrigerator compressors typically have a high-pressure chamber, also known as an exhaust buffer zone, which is mainly responsible for regulating the pressure of gas flow and playing a certain throttling role. At the same time, the high-pressure chamber is connected to the internal exhaust pipe for the discharge of high-pressure gas.
[0003] Refrigerator compressors in related technologies are generally equipped with a throttling structure to effectively reduce the pulsation during airflow, thereby reducing the noise generated during the operation of the refrigerator compressor. However, a strong throttling effect will also bring greater flow resistance, resulting in additional energy loss, i.e., throttling loss, which affects the cooling efficiency of the refrigerator compressor and may cause a decrease in cooling capacity. Summary of the Invention
[0004] The embodiments of the present invention are intended to at least solve one of the technical problems existing in the prior art.
[0005] Therefore, a first aspect of the embodiments of the present invention provides a compressor.
[0006] A second aspect of the present invention provides a refrigeration device.
[0007] In view of the above, according to a first aspect of the present invention, a compressor is provided, the compressor comprising: a crankcase, the crankcase including a cylinder block and a flow port; a piston disposed in the cylinder block and forming a compression chamber with the cylinder block; a motor and a crankshaft assembly, one end of the crankshaft assembly being connected to the piston, and the other end of the crankshaft assembly passing through the crankcase and connected to the motor; an intake and exhaust assembly disposed on the side of the cylinder block away from the crankshaft assembly, the intake and exhaust assembly having an intake passage and an exhaust passage, the intake passage communicating with the compression chamber, one end of the exhaust passage communicating with the compression chamber, and the other end of the exhaust passage connected to the flow port; a first exhaust buffer chamber and a second exhaust buffer chamber respectively disposed on the crankcase, the first exhaust buffer chamber... The system is connected to the flow passage; a first connecting hole and a second connecting hole are respectively located on the crankcase, with the two ends of the first connecting hole connected to the first exhaust buffer chamber and the second exhaust buffer chamber respectively, and the two ends of the second connecting hole connected to the first exhaust buffer chamber and the second exhaust buffer chamber respectively; a flow splitting structure is located in the first exhaust buffer chamber, the flow splitting structure includes a first flow splitting surface and a second flow splitting surface, the first flow splitting surface and the cavity wall of the first exhaust buffer chamber form a first flow splitting channel, the two ends of the first flow splitting channel are connected to the flow passage and the first connecting hole respectively, the second flow splitting surface and the cavity wall of the first exhaust buffer chamber form a second flow splitting channel, and the two ends of the second flow splitting channel are connected to the flow passage and the second connecting hole respectively.
[0008] The compressor provided in this embodiment of the invention includes a crankcase, a piston, a motor, a crankshaft assembly, an intake and exhaust assembly, a first exhaust buffer chamber, a second exhaust buffer chamber, a first connecting hole, a second connecting hole, and a flow splitting structure. Specifically, the crankcase is provided with an overflow hole that communicates with the first exhaust buffer chamber. The two ends of the first connecting hole are respectively connected to the first exhaust buffer chamber and the second exhaust buffer chamber. The two ends of the second connecting hole are respectively connected to the first exhaust buffer chamber and the second exhaust buffer chamber. Optionally, the compressor also includes an internal exhaust pipe that communicates with the second exhaust buffer chamber.
[0009] Specifically, during compressor operation, low-pressure gas enters the compression chamber through the intake passage. The motor drives the piston relative to the cylinder block via the crankshaft assembly to compress the low-pressure gas drawn into the compression chamber. The compressed high-pressure gas flows through the exhaust passage into the flow hole, then into the first exhaust buffer chamber, and finally into the second exhaust buffer chamber via the first and second connecting holes, and is finally discharged through the inner exhaust pipe. It can be understood that the first and second exhaust buffer chambers are high-pressure chambers.
[0010] The flow-dividing structure is disposed in the first exhaust buffer chamber, and the flow-dividing structure includes a first flow-dividing surface and a second flow-dividing surface. The first flow-dividing surface and the cavity wall of the first exhaust buffer chamber form a first flow-dividing channel, and the second flow-dividing surface and the cavity wall of the first exhaust buffer chamber form a second flow-dividing channel. The first flow-dividing channel and the second flow-dividing channel are respectively connected to the flow-through orifice. That is to say, when the compressed high-pressure gas enters the first exhaust buffer chamber through the flow-through orifice, it can be diverted by the flow-dividing structure, thereby effectively reducing the pulsation during the flow of high-pressure gas and thus reducing the noise generated by the compressor during operation.
[0011] Since the first diversion channel is connected to the first connecting hole and the second diversion channel is connected to the second connecting hole, the high-pressure gas after being diverted flows into the second exhaust buffer chamber through the first diversion channel and the first connecting hole, and into the second exhaust buffer chamber through the second diversion channel and the second connecting hole. Compared with the related technology that connects two high-pressure chambers through a single connecting hole, this method achieves diversion and noise reduction while ensuring the smooth flow of high-pressure gas from the first exhaust buffer chamber into the second exhaust buffer chamber, reducing flow resistance, thereby reducing throttling losses and improving the cooling capacity of the compressor.
[0012] Optionally, the first splitting surface can be a plane or a curved surface.
[0013] Optionally, the second splitting surface can be a plane or a curved surface.
[0014] Optionally, the crankcase is integrally molded.
[0015] In addition, the compressor provided by the above-described technical solution of the present invention also has the following additional technical features:
[0016] In some technical solutions, the first and second flow-dividing surfaces are optionally connected, with the connection facing the flow-through hole.
[0017] In this technical solution, since the first and second flow-dividing surfaces are connected and the connection point of the first and second flow-dividing surfaces faces the flow-through hole, that is, the included angle formed by the first and second flow-dividing surfaces faces the flow-through hole, the high-pressure gas flowing in from the flow-through hole can be diverted while the first and second flow-dividing surfaces also play a guiding role, so that the diverted high-pressure gas flows quickly to the first and second connecting holes respectively. This helps to improve the smoothness of the high-pressure gas flowing from the first exhaust buffer chamber to the second exhaust buffer chamber, reduce throttling losses, and ensure the refrigeration efficiency of the compressor.
[0018] In some technical solutions, optionally, the angle between the first splitting surface and the second splitting surface is less than 90°.
[0019] In this technical solution, since the angle between the first and second flow-dividing surfaces is less than 90°, that is, the angle between the first and second flow-dividing surfaces is an acute angle, the high-pressure gas flowing in from the flow-through hole can be diverted and noise reduced, while further improving the smoothness of the high-pressure gas flowing from the first exhaust buffer chamber to the second exhaust buffer chamber, reducing throttling losses, and increasing the cooling capacity of the compressor.
[0020] In some technical solutions, optionally, the central axis of the first connecting hole is located in the plane where the first diversion surface is located.
[0021] In this technical solution, since the central axis of the first connecting hole is located in the plane of the first diversion surface, part of the high-pressure gas after being diverted by the diversion structure can flow directly to the first connecting hole along the first diversion surface. This reduces the high-pressure gas exhaust pulsation and thus reduces the compressor operating noise, while further improving the smoothness of the high-pressure gas flowing from the first exhaust buffer chamber into the second exhaust buffer chamber, reducing throttling losses, and increasing the compressor's cooling capacity.
[0022] In some technical solutions, the crankcase may optionally include a first housing, a first cover, and a first connecting post. The first connecting post is disposed inside the first housing and connected to the first cover. The first cover and the first housing together form a first exhaust buffer chamber, and the diversion structure is connected to the first connecting post.
[0023] In this technical solution, the crankcase is further defined as including a first housing, a first cover and a first connecting post. Specifically, the first connecting post is disposed in the first housing and is connected to the first cover, so that the first cover and the first housing enclose a first exhaust buffer chamber.
[0024] The flow splitting structure is connected to the first connecting column. In other words, the flow splitting structure is integrated on the first connecting column used to connect the first housing and the first cover. This enables the flow splitting of high-pressure gas, reduces exhaust pulsation noise, reduces throttling losses, and increases cooling capacity, while ensuring the stability and reliability of the flow splitting structure under repeated impacts of high-pressure gas. This, in turn, helps to improve the reliability of compressor operation.
[0025] Optionally, the flow splitting structure and the first connecting column are integrated into one structure, which can ensure the reliability of the flow splitting structure while facilitating the processing and manufacturing of the crankcase, thus helping to reduce the production cost of the compressor.
[0026] Alternatively, the crankcase may be a metal casting.
[0027] In some technical solutions, optionally, the outer wall of the first connecting column is constructed as an arc-shaped wall; the arc-shaped wall is tangent to at least one of the first and second flow-dividing surfaces; and / or the central axis of the second connecting hole is tangent to the arc-shaped wall.
[0028] In this technical solution, the outer wall of the first connecting column is defined as an arc-shaped wall. Optionally, the flow-dividing structure and the first connecting column are a combination of a triangular prism and a cylinder. The arc-shaped wall is tangent to the first flow-dividing surface, or the arc-shaped wall is tangent to the second flow-dividing surface, or one end of the arc-shaped wall is tangent to the first flow-dividing surface and the other end is tangent to the second flow-dividing surface. The specific configuration can be adjusted according to actual needs.
[0029] Since the arc-shaped wall is tangent to the first and / or second flow-dividing surfaces, it can further improve the smoothness of the high-pressure gas after diversion flowing into the second exhaust buffer chamber through the first and second connecting holes, reduce throttling losses, ensure the refrigeration efficiency of the compressor, and increase the refrigeration capacity.
[0030] Since the central axis of the second connecting hole is tangent to the arc-shaped wall, some of the high-pressure gas after being diverted by the diversion structure can flow along the second diversion surface and the arc-shaped wall to the second connecting hole. This reduces the pulsation of high-pressure gas exhaust and lowers the operating noise of the compressor, while further improving the smoothness of high-pressure gas flowing from the first exhaust buffer chamber into the second exhaust buffer chamber, reducing throttling losses, and increasing the cooling capacity of the compressor.
[0031] In some technical solutions, optionally, the flow divider structure is configured to be close to the flow orifice; and / or at least a portion of the flow orifice is opposite to the flow divider structure.
[0032] In this technical solution, because the diversion structure is close to the flow passage, the high-pressure gas flowing into the first exhaust buffer chamber from the flow passage is quickly diverted by the diversion structure, which helps to further reduce the pulsation during the high-pressure gas flow process, thereby reducing the noise generated during the operation of the compressor and improving the user's experience of using the refrigeration equipment with the compressor.
[0033] Since at least part of the flow passage is opposite to the flow splitting structure, that is, the height of the flow splitting structure is similar to the height of the flow passage, the high-pressure gas flowing into the first exhaust buffer chamber from the flow passage is split as much as possible, thereby effectively reducing the pulsation during the high-pressure gas flow process and reducing the noise generated during compressor operation.
[0034] Optionally, the top surface of the diversion structure is higher than the top of the flow passage, that is, the flow passage is opposite to the diversion structure, so that all the high-pressure gas flowing into the first exhaust buffer chamber from the flow passage is diverted, which helps to further reduce the exhaust pulsation of the high-pressure gas.
[0035] In some technical solutions, optionally, at least one of the first connecting hole and the second connecting hole includes a first end and a second end that are opposite to each other, the first end being connected to the first exhaust buffer chamber and the second end being connected to the second exhaust buffer chamber; wherein, along the height direction of the crankcase, the first end is higher than the second end.
[0036] In this technical solution, at least one of the first connecting hole and the second connecting hole is defined to include a first end and a second end that are opposite to each other. Specifically, the first end is connected to the first exhaust buffer chamber, and the second end is connected to the second exhaust buffer chamber.
[0037] Along the height direction of the crankcase, the first end is higher than the second end. That is to say, the first connecting hole and / or the second connecting hole are inclined through holes, that is, the first connecting hole and / or the second connecting hole are at a certain angle to the horizontal plane. This can further improve the smoothness of the high-pressure gas flowing into the first exhaust buffer chamber into the second exhaust buffer chamber through the first connecting hole and the second connecting hole, reduce the flow resistance, thereby reducing throttling losses, ensuring the refrigeration efficiency of the compressor, and increasing the refrigeration capacity of the compressor.
[0038] In some technical solutions, the compressor may optionally include an inner discharge pipe, the insertion end of which is located in and communicates with the second exhaust buffer chamber; wherein the insertion end of the inner discharge pipe is configured to be close to the second end; and / or at least a portion of the first end is opposite to the flow hole.
[0039] In this technical solution, the compressor is further defined as including an internal discharge pipe. Specifically, the insertion end of the internal discharge pipe is located inside the second exhaust buffer chamber, and the insertion end of the internal discharge pipe is connected to the second exhaust buffer chamber. Specifically, during the operation of the compressor, the compressed high-pressure gas flows into the first exhaust buffer chamber through the flow hole, and then flows into the second exhaust buffer chamber through the first connecting hole and the second connecting hole respectively, and finally is discharged through the internal discharge pipe to achieve exhaust.
[0040] Because the insertion end of the inner exhaust pipe is close to the second end of the first connecting hole and / or the second connecting hole, it ensures that the high-pressure gas flowing into the second exhaust buffer chamber can be smoothly discharged through the inner exhaust pipe.
[0041] At least a portion of the first end is opposite to the flow-through orifice. Specifically, at least a portion of the first end of the first connecting orifice is opposite to the flow-through orifice, and / or at least a portion of the first end of the second connecting orifice is opposite to the flow-through orifice. That is to say, the first end of the first connecting orifice and / or the first end of the second connecting orifice are located within the height range of the flow-through orifice, which is beneficial to further improve the smoothness of the high-pressure gas flowing into the first exhaust buffer chamber into the second exhaust buffer chamber through the first connecting orifice and the second connecting orifice, respectively.
[0042] Optionally, the crankcase further includes a second housing, a second cover, and a second connecting post. The second connecting post is disposed inside the second housing and is connected to the second cover, thereby forming a second exhaust buffer chamber by the second cover and the second housing.
[0043] Optionally, the second cover is provided with an exhaust hole, which is connected to the second exhaust buffer chamber, and the insertion end of the inner pipe is inserted into the second exhaust buffer chamber through the exhaust hole.
[0044] In some technical solutions, optionally, at least one end of at least one of the first connecting hole and the second connecting hole is provided with a chamfer; and / or the diameter of at least one of the first connecting hole and the second connecting hole is greater than or equal to 1 mm and less than or equal to 2 mm.
[0045] In this technical solution, at least one end of the first connecting hole is chamfered, or at least one end of the second connecting hole is chamfered, or both the first and second connecting holes are chamfered. The specific configuration can be determined according to actual needs. That is, the first end of the first connecting hole is chamfered, and / or the second end of the first connecting hole is chamfered. Alternatively, the first end of the second connecting hole is chamfered, and / or the second end of the second connecting hole is chamfered; these are not listed exhaustively here.
[0046] By providing a chamfer at at least one end of the first connecting hole and / or at least one end of the second connecting hole, the high-pressure gas after being diverted by the diversion structure can smoothly enter the second exhaust buffer chamber through the first connecting hole and the second connecting hole, thereby improving the smoothness of the high-pressure gas flow, further reducing throttling losses, and increasing the cooling capacity.
[0047] The diameter of the first connecting hole is between 1 mm and 2 mm. Alternatively, the diameter of the second connecting hole is between 1 mm and 2 mm. Or, the diameters of both the first and second connecting holes are between 1 mm and 2 mm. This design ensures that the diverted high-pressure gas flows smoothly into the second exhaust buffer chamber through both the first and second connecting holes, while reducing exhaust pulsation and thus improving the compressor's operating noise.
[0048] Optionally, the diameter of the first connecting hole is equal to the diameter of the second connecting hole.
[0049] According to a second aspect of the present invention, a refrigeration device is provided, comprising a compressor as provided in any of the above-described technical solutions, and thus possessing all the beneficial technical effects of the compressor, which will not be elaborated further here.
[0050] Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description
[0051] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0052] Figure 1 One of the structural schematic diagrams of a crankcase according to an embodiment of the present invention is shown;
[0053] Figure 2 A second schematic diagram of the crankcase according to an embodiment of the present invention is shown;
[0054] Figure 3 A third schematic diagram of the crankcase according to an embodiment of the present invention is shown;
[0055] Figure 4 A fourth schematic diagram of the crankcase according to an embodiment of the present invention is shown;
[0056] Figure 5 Fifth schematic diagram of the crankcase according to an embodiment of the present invention is shown;
[0057] Figure 6 A sixth schematic diagram of the crankcase according to an embodiment of the present invention is shown;
[0058] Figure 7 A schematic diagram of a compressor according to an embodiment of the present invention is shown.
[0059] in, Figures 1 to 7 The correspondence between the reference numerals and component names in the attached drawings is as follows:
[0060] 100 Compressor, 110 Crankcase, 111 Flow hole, 112 First exhaust buffer chamber, 113 Second exhaust buffer chamber, 114 First connecting hole, 115 Second connecting hole, 116 Cylinder block, 120 Flow splitting structure, 121 First flow splitting surface, 122 Second flow splitting surface, 130 First flow splitting channel, 140 Second flow splitting channel, 150 First housing, 160 First connecting post, 161 Arc wall, 170 First end, 180 Second end, 190 Second housing, 210 Second connecting post, 220 Piston, 230 Compression chamber, 240 Motor, 250 Crankshaft assembly, 260 Intake and exhaust assembly, 261 Intake channel, 262 Exhaust channel, 270 Inner manifold. Detailed Implementation
[0061] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0062] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.
[0063] The following reference Figures 1 to 7 To describe the compressor 100 and refrigeration equipment provided according to some embodiments of the present invention.
[0064] In one embodiment according to this application, such as Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, a compressor 100 is proposed, comprising: a crankcase 110, which includes a cylinder block 116 and a flow port 111; a piston 220 disposed in the cylinder block 116 and forming a compression chamber 230 therewith; a motor 240 and a crankshaft assembly 250, one end of which is connected to the piston 220, and the other end of which passes through the crankcase 110 and is connected to the motor 240; an intake and exhaust assembly 260 disposed on the side of the cylinder block 116 away from the crankshaft assembly 250, the intake and exhaust assembly 260 having an intake passage 261 and an exhaust passage 262, the intake passage 261 communicating with the compression chamber 230, one end of the exhaust passage 262 communicating with the compression chamber 230, and the other end of the exhaust passage 262 connected to the flow port 111; a first exhaust buffer chamber 112 and a second exhaust buffer chamber 113 respectively disposed on the crankcase 110, the first exhaust buffer chamber 112... The crankcase 110 is connected to the flow passage 111; the first connecting hole 114 and the second connecting hole 115 are respectively provided on the crankcase 110, the two ends of the first connecting hole 114 are respectively connected to the first exhaust buffer chamber 112 and the second exhaust buffer chamber 113, and the two ends of the second connecting hole 115 are respectively connected to the first exhaust buffer chamber 112 and the second exhaust buffer chamber 113; the flow splitting structure 120 is provided in the first exhaust buffer chamber 112, the flow splitting structure 120 includes a first flow splitting surface 121 and a second flow splitting surface 122, the first flow splitting surface 121 and the cavity wall of the first exhaust buffer chamber 112 form a first flow splitting channel 130, the two ends of the first flow splitting channel 130 are respectively connected to the flow passage 111 and the first connecting hole 114, the second flow splitting surface 122 and the cavity wall of the first exhaust buffer chamber 112 form a second flow splitting channel 140, and the two ends of the second flow splitting channel 140 are respectively connected to the flow passage 111 and the second connecting hole 115.
[0065] The compressor 100 provided in this embodiment of the invention includes a crankcase 110, a piston 220, a motor 240, a crankshaft assembly 250, an intake and exhaust assembly 260, a first exhaust buffer chamber 112, a second exhaust buffer chamber 113, a first connecting hole 114, a second connecting hole 115, and a flow divider structure 120. Specifically, the crankcase 110 is provided with an overflow hole 111, which communicates with the first exhaust buffer chamber 112. The two ends of the first connecting hole 114 are respectively connected to the first exhaust buffer chamber 112 and the second exhaust buffer chamber 113. The two ends of the second connecting hole 115 are respectively connected to the first exhaust buffer chamber 112 and the second exhaust buffer chamber 113. Optionally, the compressor 100 also includes an inner exhaust pipe, which communicates with the second exhaust buffer chamber 113.
[0066] Specifically, during the operation of the compressor 100, low-pressure gas enters the compression chamber 230 through the intake passage 261. The motor 240 drives the piston 220 to move relative to the cylinder block 116 via the crankshaft assembly 250, thereby compressing the low-pressure gas drawn into the compression chamber 230. The compressed high-pressure gas flows into the flow passage 262 through the flow hole 111, then into the first exhaust buffer chamber 112, and finally into the second exhaust buffer chamber 113 through the first connecting hole 114 and the second connecting hole 115, and is finally discharged through the inner exhaust pipe. It can be understood that the first exhaust buffer chamber 112 and the second exhaust buffer chamber 113 are high-pressure chambers.
[0067] The flow-diverting structure 120 is disposed within the first exhaust buffer chamber 112, and the flow-diverting structure 120 includes a first flow-diverting surface 121 and a second flow-diverting surface 122. The first flow-diverting surface 121 and the cavity wall of the first exhaust buffer chamber 112 form a first flow-diverting channel 130, and the second flow-diverting surface 122 and the cavity wall of the first exhaust buffer chamber 112 form a second flow-diverting channel 140. The first flow-diverting channel 130 and the second flow-diverting channel 140 are respectively connected to the flow-through hole 111. That is to say, when the compressed high-pressure gas enters the first exhaust buffer chamber 112 through the flow-through hole 111, it can be diverted by the flow-diverting structure 120, thereby effectively reducing the pulsation during the flow of high-pressure gas and thus reducing the noise generated by the compressor 100 during operation.
[0068] Since the first diversion channel 130 is connected to the first connecting hole 114 and the second diversion channel 140 is connected to the second connecting hole 115, the high-pressure gas after being diverted flows into the second exhaust buffer chamber 113 through the first diversion channel 130 and the first connecting hole 114, and into the second exhaust buffer chamber 113 through the second diversion channel 140 and the second connecting hole 115. Compared with the related technology that connects two high-pressure chambers through a connecting hole, this method achieves diversion and noise reduction while ensuring the smooth flow of high-pressure gas from the first exhaust buffer chamber 112 into the second exhaust buffer chamber 113, reducing flow resistance, thereby reducing throttling losses and improving the cooling capacity of the compressor 100.
[0069] Optionally, the first splitting surface 121 can be a plane or a curved surface.
[0070] Optionally, the second splitting surface 122 can be a plane or a curved surface.
[0071] Optionally, the crankcase 110 is integrally formed.
[0072] like Figure 1 and Figure 5 As shown, in some embodiments, optionally, the first flow divider 121 and the second flow divider 122 are connected, and the connection point faces the flow passage 111.
[0073] In this embodiment, since the first diversion surface 121 and the second diversion surface 122 are connected, and the connection point of the first diversion surface 121 and the second diversion surface 122 faces the flow hole 111, that is, the included angle formed by the first diversion surface 121 and the second diversion surface 122 faces the flow hole 111, the high-pressure gas flowing in from the flow hole 111 can be diverted, and the first diversion surface 121 and the second diversion surface 122 can also play a guiding role, so that the diverted high-pressure gas flows quickly to the first connecting hole 114 and the second connecting hole 115 respectively. This is beneficial to improve the smoothness of the high-pressure gas flowing from the first exhaust buffer chamber 112 into the second exhaust buffer chamber 113, reduce throttling losses, and ensure the refrigeration efficiency of the compressor 100.
[0074] In some embodiments, the angle between the first splitting surface 121 and the second splitting surface 122 is optionally less than 90°.
[0075] In this embodiment, since the angle between the first diversion surface 121 and the second diversion surface 122 is less than 90°, that is, the angle between the first diversion surface 121 and the second diversion surface 122 is an acute angle, the high-pressure gas flowing in from the flow hole 111 can be diverted and noise reduced, while further improving the smoothness of the high-pressure gas flowing from the first exhaust buffer chamber 112 into the second exhaust buffer chamber 113, reducing throttling losses, and increasing the cooling capacity of the compressor 100.
[0076] In some embodiments, the central axis of the first connecting hole 114 is optionally located in the plane where the first diversion surface 121 is located.
[0077] In this embodiment, since the central axis of the first connecting hole 114 is located in the plane of the first diversion surface 121, some of the high-pressure gas after being diverted by the diversion structure 120 can flow directly to the first connecting hole 114 along the first diversion surface 121. This reduces the high-pressure gas exhaust pulsation and thus reduces the operating noise of the compressor 100, while further improving the smoothness of the high-pressure gas flowing from the first exhaust buffer chamber 112 into the second exhaust buffer chamber 113, reducing throttling losses, and increasing the cooling capacity of the compressor 100.
[0078] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the crankcase 110 may optionally include a first housing 150, a first cover and a first connecting post 160. The first connecting post 160 is disposed inside the first housing 150 and connected to the first cover. The first cover and the first housing 150 enclose a first exhaust buffer chamber 112. The diversion structure 120 is connected to the first connecting post 160.
[0079] In this embodiment, the crankcase 110 is further defined as including a first housing 150, a first cover and a first connecting post 160. Specifically, the first connecting post 160 is disposed inside the first housing 150 and is connected to the first cover, so that the first cover and the first housing 150 enclose to form a first exhaust buffer chamber 112.
[0080] The flow divider structure 120 is connected to the first connecting post 160. In other words, the flow divider structure 120 is integrated on the first connecting post 160 used to connect the first housing 150 and the first cover. This enables the flow divider structure 120 to achieve high-pressure gas diversion, reduce exhaust pulsation noise, reduce throttling losses, and increase cooling capacity, while ensuring the stability and reliability of the flow divider structure 120 under repeated impacts of high-pressure gas. This, in turn, helps to improve the reliability of the compressor 100.
[0081] Optionally, the flow divider structure 120 and the first connecting column 160 are integrated into one structure, which can ensure the reliability of the flow divider structure 120 while facilitating the processing and manufacturing of the crankcase 110, and help reduce the production cost of the compressor 100.
[0082] Optionally, the crankcase 110 is a metal casting.
[0083] like Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments, optionally, the outer wall of the first connecting post 160 is configured as an arcuate wall 161; the arcuate wall 161 is tangent to at least one of the first diversion surface 121 and the second diversion surface 122; and / or the central axis of the second connecting hole 115 is tangent to the arcuate wall 161.
[0084] In this embodiment, the outer wall of the first connecting post 160 is defined as an arc-shaped wall 161. Optionally, the flow-dividing structure 120 and the first connecting post 160 are a combination of a triangular prism and a cylinder. The arc-shaped wall 161 is tangent to the first flow-dividing surface 121, or the arc-shaped wall 161 is tangent to the second flow-dividing surface 122, or one end of the arc-shaped wall 161 is tangent to the first flow-dividing surface 121 and the other end is tangent to the second flow-dividing surface 122. The specific configuration can be adjusted according to actual needs.
[0085] Since the arc-shaped wall 161 is tangent to the first diversion surface 121 and / or the second diversion surface 122, it can further improve the smoothness of the diverted high-pressure gas flowing into the second exhaust buffer chamber 113 through the first connecting hole 114 and the second connecting hole 115, reduce throttling losses, ensure the refrigeration efficiency of the compressor 100, and increase the refrigeration capacity.
[0086] Since the central axis of the second connecting hole 115 is tangent to the arc-shaped wall 161, some of the high-pressure gas after being diverted by the diversion structure 120 can flow along the second diversion surface 122 and the arc-shaped wall 161 to the second connecting hole 115. This reduces the high-pressure gas exhaust pulsation and lowers the operating noise of the compressor 100, while further improving the smoothness of the high-pressure gas flowing from the first exhaust buffer chamber 112 into the second exhaust buffer chamber 113, reducing throttling losses, and increasing the cooling capacity of the compressor 100.
[0087] like Figure 1 and Figure 5 As shown, in some embodiments, optionally, the flow divider 120 is configured to be close to the flow orifice 111; and / or at least a portion of the flow orifice 111 is opposite to the flow divider 120.
[0088] In this embodiment, since the diversion structure 120 is close to the flow passage 111, the high-pressure gas flowing into the first exhaust buffer chamber 112 from the flow passage 111 is quickly diverted by the diversion structure 120, which helps to further reduce the pulsation during the flow of high-pressure gas, thereby reducing the noise generated by the compressor 100 during operation and improving the user's experience of using the refrigeration equipment with the compressor 100.
[0089] Since at least part of the flow passage 111 is opposite to the flow diversion structure 120, that is, the height of the flow diversion structure 120 is similar to the height of the flow passage 111, so that the high-pressure gas flowing into the first exhaust buffer chamber 112 from the flow passage 111 is diverted as much as possible, thereby effectively reducing the pulsation during the flow of high-pressure gas and reducing the noise generated by the compressor 100 during operation.
[0090] Optionally, the top surface of the diversion structure 120 is higher than the top of the flow passage 111. That is, the flow passage 111 is opposite to the diversion structure 120, so that all the high-pressure gas flowing into the first exhaust buffer chamber 112 from the flow passage 111 is diverted, which helps to further reduce the exhaust pulsation of the high-pressure gas.
[0091] like Figure 3 and Figure 4 As shown, in some embodiments, optionally, at least one of the first connecting hole 114 and the second connecting hole 115 includes a first end 170 and a second end 180 facing away from each other, the first end 170 communicating with the first exhaust buffer chamber 112 and the second end 180 communicating with the second exhaust buffer chamber 113; wherein, along the height direction of the crankcase 110, the first end 170 is higher than the second end 180.
[0092] In this embodiment, at least one of the first connecting hole 114 and the second connecting hole 115 is defined to include a first end 170 and a second end 180 facing away from each other. Specifically, the first end 170 is connected to the first exhaust buffer chamber 112, and the second end 180 is connected to the second exhaust buffer chamber 113.
[0093] Along the height direction of the crankcase 110, the first end 170 is higher than the second end 180. That is to say, the first connecting hole 114 and / or the second connecting hole 115 are inclined through holes, that is, the first connecting hole 114 and / or the second connecting hole 115 are at a certain angle to the horizontal plane. This can further improve the smoothness of the high-pressure gas flowing into the first exhaust buffer chamber 112 into the second exhaust buffer chamber 113 through the first connecting hole 114 and the second connecting hole 115, reduce the flow resistance, thereby reducing throttling losses, ensuring the refrigeration efficiency of the compressor 100, and increasing the refrigeration capacity of the compressor 100.
[0094] like Figure 7 As shown, in some embodiments, the compressor 100 may optionally include an inner discharge pipe 270, the insertion end of which is located in and communicates with the second exhaust buffer chamber 113; wherein the insertion end of the inner discharge pipe 270 is configured to be close to the second end 180; and / or at least a portion of the first end 170 is opposite to the flow hole 111.
[0095] In this embodiment, the compressor 100 further includes an inner discharge pipe 270. Specifically, the insertion end of the inner discharge pipe 270 is located within the second exhaust buffer chamber 113, and the insertion end of the inner discharge pipe 270 is connected to the second exhaust buffer chamber 113. Specifically, during the operation of the compressor 100, the compressed high-pressure gas flows into the first exhaust buffer chamber 112 through the flow hole 111, and then flows into the second exhaust buffer chamber 113 through the first connecting hole 114 and the second connecting hole 115 respectively, and finally is discharged through the inner discharge pipe 270 to achieve exhaust.
[0096] Because the insertion end of the inner exhaust pipe 270 is close to the second end 180 of the first connecting hole 114 and / or the second end 180 of the second connecting hole 115, it ensures that the high-pressure gas flowing into the second exhaust buffer chamber 113 can be smoothly discharged through the inner exhaust pipe 270.
[0097] At least a portion of the first end 170 is opposite to the flow-through hole 111. Specifically, at least a portion of the first end 170 of the first connecting hole 114 is opposite to the flow-through hole 111, and / or at least a portion of the first end 170 of the second connecting hole 115 is opposite to the flow-through hole 111. That is, the first end 170 of the first connecting hole 114 and / or the first end 170 of the second connecting hole 115 are located within the height range of the flow-through hole 111, which is beneficial to further improve the smoothness of the high-pressure gas flowing into the first exhaust buffer chamber 112 into the second exhaust buffer chamber 113 via the first connecting hole 114 and the second connecting hole 115, respectively.
[0098] Optionally, the crankcase 110 further includes a second housing 190, a second cover, and a second connecting post 210. The second connecting post 210 is disposed inside the second housing 190 and is connected to the second cover, so that the second cover and the second housing 190 enclose a second exhaust buffer chamber 113.
[0099] Optionally, the second cover is provided with an exhaust hole, which is connected to the second exhaust buffer chamber 113, and the insertion end of the inner pipe is inserted into the second exhaust buffer chamber 113 through the exhaust hole.
[0100] In some embodiments, optionally, at least one end of at least one of the first connecting hole 114 and the second connecting hole 115 is provided with a chamfer; and / or the diameter of at least one of the first connecting hole 114 and the second connecting hole 115 is greater than or equal to 1 mm and less than or equal to 2 mm.
[0101] In this embodiment, at least one end of the first connecting hole 114 is chamfered, or at least one end of the second connecting hole 115 is chamfered, or both the first and second connecting holes 114 and 115 are chamfered. The specific configuration can be adjusted according to actual needs. That is, the first end 170 of the first connecting hole 114 is chamfered, and / or the second end 180 of the first connecting hole 114 is chamfered. Alternatively, the first end 170 of the second connecting hole 115 is chamfered, and / or the second end 180 of the second connecting hole 115 is chamfered; these are not all listed here.
[0102] By providing a chamfer at at least one end of the first connecting hole 114 and / or at least one end of the second connecting hole 115, the high-pressure gas after being diverted by the diversion structure 120 can smoothly enter the second exhaust buffer chamber 113 through the first connecting hole 114 and the second connecting hole 115, thereby improving the smoothness of the high-pressure gas flow, further reducing throttling losses, and increasing the cooling capacity.
[0103] The diameter of the first connecting hole 114 is between 1 mm and 2 mm. Alternatively, the diameter of the second connecting hole 115 is between 1 mm and 2 mm. Or, the diameters of both the first connecting hole 114 and the second connecting hole 115 are between 1 mm and 2 mm. This ensures that the diverted high-pressure gas flows smoothly into the second exhaust buffer chamber 113 through the first connecting hole 114 and the second connecting hole 115, while reducing exhaust pulsation and thus improving the operating noise of the compressor 100.
[0104] Optionally, the diameter of the first connecting hole 114 is equal to the diameter of the second connecting hole 115.
[0105] Table 1. Performance simulation comparison of the compressor of the present invention with compressors in related technologies.
[0106] Cooling capacity (W) Input force / (W) COP Compressors in related technologies 191.2 77.1 2.478 The compressor of the present invention 194.1 78.4 2.477
[0107] As shown in Table 1, compared with compressors in related technologies, the compressor 100 proposed in this invention improves the cooling capacity, achieves comparable COP (efficiency), and has comparable exhaust pulsation. That is, while improving the cooling capacity of the compressor 100, it also takes into account the airflow pulsation performance.
[0108] Moreover, compared with compressors in related technologies, the gas has a higher space utilization rate in the first high-pressure chamber (first exhaust buffer chamber 112) of the present invention, and the inflow and outflow are smoother and less disordered.
[0109] Optionally, compressor 100 includes a reciprocating compressor.
[0110] like Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, specifically, the compressor 100 includes a crankcase 110, a piston 220, a motor 240, a crankshaft assembly 250, an intake and exhaust assembly 260, a first exhaust buffer chamber 112, a second exhaust buffer chamber 113, a first connecting hole 114, a second connecting hole 115, and a flow divider structure 120. Specifically, the crankcase 110 is provided with an overflow hole 111, which communicates with the first exhaust buffer chamber 112. The two ends of the first connecting hole 114 communicate with the first exhaust buffer chamber 112 and the second exhaust buffer chamber 113, respectively. The two ends of the second connecting hole 115 communicate with the first exhaust buffer chamber 112 and the second exhaust buffer chamber 113, respectively. Optionally, the compressor 100 also includes an inner exhaust pipe, which communicates with the second exhaust buffer chamber 113.
[0111] Specifically, during the operation of the compressor 100, low-pressure gas enters the compression chamber 230 through the intake passage 261. The motor 240 drives the piston 220 to move relative to the cylinder block 116 via the crankshaft assembly 250, thereby compressing the low-pressure gas drawn into the compression chamber 230. The compressed high-pressure gas flows into the flow passage 262 through the flow hole 111, then into the first exhaust buffer chamber 112, and finally into the second exhaust buffer chamber 113 through the first connecting hole 114 and the second connecting hole 115, and is finally discharged through the inner exhaust pipe. It can be understood that the first exhaust buffer chamber 112 and the second exhaust buffer chamber 113 are high-pressure chambers.
[0112] The flow-diverting structure 120 is disposed within the first exhaust buffer chamber 112, and the flow-diverting structure 120 includes a first flow-diverting surface 121 and a second flow-diverting surface 122. The first flow-diverting surface 121 and the cavity wall of the first exhaust buffer chamber 112 form a first flow-diverting channel 130, and the second flow-diverting surface 122 and the cavity wall of the first exhaust buffer chamber 112 form a second flow-diverting channel 140. The first flow-diverting channel 130 and the second flow-diverting channel 140 are respectively connected to the flow-through hole 111. That is to say, when the compressed high-pressure gas enters the first exhaust buffer chamber 112 through the flow-through hole 111, it can be diverted by the flow-diverting structure 120, thereby effectively reducing the pulsation during the flow of high-pressure gas and thus reducing the noise generated by the compressor 100 during operation.
[0113] Since the first diversion channel 130 is connected to the first connecting hole 114 and the second diversion channel 140 is connected to the second connecting hole 115, the high-pressure gas after being diverted flows into the second exhaust buffer chamber 113 through the first diversion channel 130 and the first connecting hole 114, and into the second exhaust buffer chamber 113 through the second diversion channel 140 and the second connecting hole 115. Compared with the related technology that connects two high-pressure chambers through a connecting hole, this method achieves diversion and noise reduction while ensuring the smooth flow of high-pressure gas from the first exhaust buffer chamber 112 into the second exhaust buffer chamber 113, reducing flow resistance, thereby reducing throttling losses and improving the cooling capacity of the compressor 100.
[0114] Optionally, the crankshaft assembly 250 includes a crankshaft and a connecting rod, with one end of the crankshaft connected to the piston 220 via the connecting rod.
[0115] Optionally, the intake and exhaust assembly 260 includes a valve plate assembly, an intake muffler, and a cylinder head. The intake muffler is connected to the cylinder head. The valve plate assembly is located between the cylinder block 116 and the cylinder head. The intake muffler has a muffler channel. The valve plate assembly has an intake port. The intake port and the muffler channel are connected to form an intake channel 261.
[0116] The valve plate assembly is also provided with an exhaust port and a valve plate. The valve plate can open or close the exhaust port. The exhaust port is connected to the compression chamber 230. The cylinder head is provided with an exhaust chamber, which is connected to the flow passage 111. When the valve plate opens the exhaust port, the exhaust port is connected to the exhaust chamber to form an exhaust passage 262.
[0117] According to a second aspect of the present invention, a refrigeration device is provided, comprising a compressor 100 as provided in any of the above embodiments, and thus possessing all the beneficial technical effects of the compressor 100, which will not be repeated here.
[0118] Alternatively, the refrigeration equipment may include refrigerators, air conditioners, or freezers.
[0119] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0120] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0121] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A compressor characterized by, include: A crankcase, the crankcase comprising a cylinder block and a flow passage; A piston is disposed in the cylinder and forms a compression chamber with the cylinder; An electric motor and a crankshaft assembly, one end of which is connected to the piston, and the other end of which passes through the crankcase and is connected to the electric motor; An intake and exhaust assembly is provided on the side of the cylinder block away from the crankshaft assembly. The intake and exhaust assembly is provided with an intake channel and an exhaust channel. The intake channel is connected to the compression chamber, one end of the exhaust channel is connected to the compression chamber, and the other end of the exhaust channel is connected to the flow hole. The first exhaust buffer chamber and the second exhaust buffer chamber are respectively provided on the crankcase, and the first exhaust buffer chamber is connected to the flow hole; A first connecting hole and a second connecting hole are respectively provided on the crankcase. The two ends of the first connecting hole are respectively connected to the first exhaust buffer chamber and the second exhaust buffer chamber, and the two ends of the second connecting hole are respectively connected to the first exhaust buffer chamber and the second exhaust buffer chamber. A flow-dividing structure is disposed within the first exhaust buffer chamber. The flow-dividing structure includes a first flow-dividing surface and a second flow-dividing surface. The first flow-dividing surface and the cavity wall of the first exhaust buffer chamber form a first flow-dividing channel. The two ends of the first flow-dividing channel are respectively connected to the flow-through hole and the first connecting hole. The second flow-dividing surface and the cavity wall of the first exhaust buffer chamber form a second flow-dividing channel. The two ends of the second flow-dividing channel are respectively connected to the flow-through hole and the second connecting hole.
2. The compressor of claim 1, wherein, The first flow divider and the second flow divider are connected, and the connection point faces the flow hole.
3. The compressor of claim 1, wherein, The angle between the first flow divider and the second flow divider is less than 90°.
4. The compressor of claim 1, wherein, The central axis of the first connecting hole is located in the plane containing the first diversion surface.
5. The compressor of claim 1, wherein, The crankcase also includes a first housing, a first cover, and a first connecting post. The first connecting post is disposed inside the first housing and connected to the first cover. The first cover and the first housing together form the first exhaust buffer chamber. The flow splitting structure is connected to the first connecting post.
6. The compressor of claim 5, wherein, The outer wall of the first connecting column is constructed as an arc-shaped wall; The arc-shaped wall is tangent to at least one of the first and second flow-dividing surfaces; and / or the central axis of the second connecting hole is tangent to the arc-shaped wall.
7. The compressor of any one of claims 1 to 6, wherein, The flow divider structure is configured to be close to the flow orifice; and / or at least a portion of the flow orifice is opposite to the flow divider structure.
8. The compressor of any one of claims 1 to 6, wherein, At least one of the first connecting hole and the second connecting hole includes a first end and a second end that are opposite to each other, the first end being connected to the first exhaust buffer chamber and the second end being connected to the second exhaust buffer chamber; Wherein, along the height direction of the crankcase, the first end is higher than the second end.
9. The compressor of claim 8, wherein, Also includes: An inner exhaust pipe, the insertion end of which is located inside the second exhaust buffer chamber and communicates with the second exhaust buffer chamber; The insertion end of the inner pipe is configured to be close to the second end; and / or at least a portion of the first end is opposite to the flow hole.
10. The compressor according to any one of claims 1 to 6, characterized in that, At least one end of at least one of the first connecting hole and the second connecting hole is chamfered; and / or The diameter of at least one of the first connecting hole and the second connecting hole is greater than or equal to 1 mm and less than or equal to 2 mm.
11. A refrigeration appliance characterized in that, Includes the compressor as described in any one of claims 1 to 10.