Compressor and refrigeration apparatus

Abstract

This invention provides a compressor and a refrigeration device. The compressor includes: a crankcase, which includes 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 which is connected to the piston, and the other end of which passes through the crankcase and is 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 which is connected to the compression chamber, and the other end of which is connected to the flow port; an exhaust buffer structure, disposed in the crankcase, which includes a cavity and a partition plate, the partition plate being disposed in the cavity and extending longitudinally along the exhaust buffer structure to divide the cavity into a first buffer cavity and a second buffer cavity, the first buffer cavity communicating with the flow port; and a connecting port, disposed in the exhaust buffer structure, through which the first buffer cavity communicates with the second buffer cavity, increasing the exhaust volume and reducing the mass of the crankcase.

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 a discharge buffer zone, which is mainly responsible for regulating the pressure of gas flow and playing a certain throttling role. Simultaneously, the high-pressure chamber is connected to the internal discharge pipe for the discharge of high-pressure gas. In related technologies, the crankcase of refrigerator compressors has two independent and connected high-pressure chambers, resulting in a relatively small total discharge volume. Increasing the discharge volume would increase the mass of the crankcase, leading to an increase in the cost of the refrigerator compressor. Summary of the Invention

[0003] The embodiments of the present invention are intended to at least solve one of the technical problems existing in the prior art.

[0004] Therefore, a first aspect of the embodiments of the present invention provides a compressor.

[0005] A second aspect of the present invention provides a refrigeration device.

[0006] 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 being connected to the flow port; an exhaust buffer structure disposed in the crankcase, the exhaust buffer structure including a cavity and a partition plate, the partition plate being disposed in the cavity and extending longitudinally along the exhaust buffer structure to divide the cavity into a first buffer cavity and a second buffer cavity, the first buffer cavity communicating with the flow port; and a connecting port disposed in the exhaust buffer structure, the first buffer cavity communicating with the second buffer cavity through the connecting port.

[0007] The compressor provided in this embodiment of the invention includes a crankcase, a piston, a motor, a crankshaft assembly, an intake and exhaust assembly, an exhaust buffer structure, and a connecting port. Specifically, the exhaust buffer structure includes a cavity and a partition plate. The partition plate is disposed within the cavity and extends longitudinally to divide the cavity into a first buffer cavity and a second buffer cavity. The first buffer cavity communicates with a flow-through hole and is connected to the second buffer cavity through the connecting port. Optionally, the compressor also includes an internal discharge pipe, which communicates with the second buffer cavity. Specifically, during compressor operation, low-pressure gas enters the compression cavity 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 cavity. The compressed high-pressure gas flows through the exhaust passage into the flow-through hole, then into the first buffer cavity, and finally into the second buffer cavity through the connecting port, and is finally discharged through the internal discharge pipe. It can be understood that the first buffer cavity and the second buffer cavity are high-pressure chambers.

[0008] Because the partition plate divides the cavity into two high-pressure chambers, the exhaust buffer structure forms an integrated dual-chamber structure separated by the partition plate. Compared with the crankcase with two independent high-pressure chambers in related technologies, this effectively utilizes the space inside the compressor, increases the exhaust volume, and reduces the mass of the crankcase, thereby helping to reduce the production cost of the compressor.

[0009] In addition, the compressor provided by the above-described technical solution of the present invention also has the following additional technical features:

[0010] In some technical solutions, the exhaust buffer structure may optionally include a buffer channel, which is disposed in at least one of the first buffer cavity and the second buffer cavity. Since the buffer channel is disposed in the first buffer cavity, the first buffer cavity is connected to the communication port through the buffer channel. Since the buffer channel is disposed in the second buffer cavity, the communication port is connected to the second buffer cavity through the buffer channel.

[0011] In this technical solution, the exhaust buffer structure is further defined as including a buffer channel. Specifically, the buffer channel is set in the first buffer chamber, and the first buffer chamber is connected to the connecting port through the buffer channel. That is to say, the high-pressure gas flowing into the first buffer chamber from the flow hole flows into the second buffer chamber in sequence through the buffer channel and the connecting port.

[0012] Alternatively, the buffer channel is located inside the second buffer chamber, and the connecting port is connected to the second buffer chamber through the buffer channel. In other words, the high-pressure gas flowing into the first buffer chamber from the flow hole flows into the second buffer chamber through the connecting port and the buffer channel in sequence.

[0013] Alternatively, there may be two buffer channels, one of which is located in the first buffer chamber and the other in the second buffer chamber. Specifically, the high-pressure gas flowing into the first buffer chamber from the flow hole flows into the second buffer chamber sequentially through the buffer channel in the first buffer chamber, the connecting port, and the buffer channel in the second buffer chamber.

[0014] Because of the buffer channel, the high-pressure gas can be buffered as it flows from the first buffer chamber into the second buffer chamber, which helps to reduce the pulsation during the flow of high-pressure gas and thus reduce the noise of the compressor during operation.

[0015] In some technical solutions, the buffer channel may optionally include a first end and a second end facing away from each other, with the first end being closer to the connection port than the second end, and the flow area of ​​the first end being smaller than that of the second end.

[0016] In this technical solution, the buffer channel is defined as having a first end and a second end facing away from each other. Specifically, the first end of the buffer channel is closer to the connecting port than the second end, and the flow area of ​​the first end is smaller than that of the second end. Specifically, when the buffer channel is located within the first buffer chamber, the high-pressure gas flowing into the first buffer chamber from the flow orifice undergoes a change in flow cross-section as it flows through the buffer channel towards the connecting port, thus providing a buffer for the change in gas cross-section. When the buffer channel is located within the second buffer chamber, the high-pressure gas flowing into the first buffer chamber from the flow orifice sequentially flows through the connecting port and the buffer channel into the second buffer chamber, and the flow cross-section changes accordingly, thus providing a buffer for the change in gas cross-section.

[0017] By setting a variable cross-section buffer channel in the first buffer chamber and / or the second buffer chamber, the pulsation during the flow of high-pressure gas from the first buffer chamber into the second buffer chamber is effectively reduced, thereby improving the compressor's noise reduction capability and enhancing the user's experience with refrigeration equipment equipped with the compressor.

[0018] In some technical solutions, the exhaust buffer structure may optionally include a buffer section, which is connected to the partition plate and located in at least one of the first buffer cavity and the second buffer cavity. The buffer section is provided with a buffer wall, which forms a buffer channel with the inner wall of the cavity.

[0019] In this technical solution, the exhaust buffer structure is further defined as including a buffer section. Specifically, the buffer section is connected to the partition plate. Specifically, when the buffer section is located in the first buffer cavity, the buffer wall of the buffer section and the inner wall of the cavity form a buffer channel. When the buffer section is located in the second buffer cavity, the buffer wall of the buffer section and the inner wall of the cavity form a buffer channel.

[0020] Because the buffer wall and the inner wall of the cavity form a buffer channel, that is, the inner wall of the cavity constitutes part of the channel wall of the buffer channel. The buffer part is set on one side of the partition plate and close to the inner wall of the cavity. Compared with setting the buffer part in the middle of the partition plate, which requires setting the channel walls on both sides of the buffer channel, this makes full use of the structure inside the cavity. While realizing the buffering of gas flow, it avoids occupying too much exhaust volume in the first or second buffer cavity due to setting the buffer channel. At the same time, it is also conducive to reducing the mass of the crankcase, thereby reducing the production cost of the compressor.

[0021] Optionally, the buffer section and the partition plate are an integral structure.

[0022] In some technical solutions, the buffer wall is optionally constructed as a curved surface or a plane.

[0023] In this technical solution, the buffer wall is curved. Alternatively, the buffer wall can be flat. The specific configuration can be determined based on actual needs. This allows the buffer wall and the inner wall of the cavity to form a variable cross-section buffer channel, providing buffering for changes in gas cross-section and helping to reduce pulsating noise during compressor operation.

[0024] In some technical solutions, optionally, there are two buffer sections, which are located on opposite sides of the partition plate. The buffer wall of one buffer section forms a first buffer channel with the inner wall of the cavity, and the buffer wall of the other buffer section forms a second buffer channel with the inner wall of the cavity. The first buffer channel is connected to the second buffer channel through a connecting port.

[0025] In this technical solution, the number of buffer sections is limited to two. Specifically, the two buffer sections are located on opposite sides of the partition plate. That is, one buffer section is located in the first buffer chamber, and the buffer wall of this buffer section forms a first buffer channel with the inner wall of the chamber. The other buffer section is located in the second buffer chamber, and the buffer wall of this buffer section forms a second buffer channel with the inner wall of the chamber. Specifically, the high-pressure gas flowing into the first buffer chamber from the flow hole flows into the second buffer chamber sequentially through the first buffer channel, the connecting port, and the second buffer channel, improving the buffering effect on the high-pressure gas. This further reduces the exhaust pulsation of the high-pressure gas during the flow from the first buffer chamber to the second buffer chamber, thereby reducing the noise of the compressor during operation.

[0026] In some technical solutions, optionally, the connecting port and the flow hole are staggered along the direction from the first buffer chamber to the second buffer chamber.

[0027] In this technical solution, since the connecting port and the flow hole are staggered in the direction from the first buffer chamber to the second buffer chamber, it can effectively prevent the high-pressure gas flowing into the first buffer chamber from the flow hole from directly flowing into the second buffer chamber through the connecting port due to the connection port and the flow hole being opposite each other. This helps to extend the flow path of the high-pressure gas in the first buffer chamber, reduce exhaust pulsation, and improve the noise reduction capability of the compressor.

[0028] In some technical solutions, the exhaust buffer structure optionally includes a shell and a cover, wherein a partition plate is disposed inside the shell, and the cover is connected to the shell and together with the shell to form a cavity.

[0029] In this technical solution, the exhaust buffer structure is defined as including a shell and a cover. Specifically, the shell and the cover are connected and enclose a cavity. That is to say, the shell and the cover are integral structural components, thus forming an integral dual-cavity structure together with the partition plate. Compared with the crankcase with two independent high-pressure chambers in related technologies, this effectively utilizes the space inside the compressor, increases the exhaust volume, reduces the mass of the crankcase, and also helps to reduce the processing difficulty of the crankcase, thereby reducing the production cost of the compressor.

[0030] In some technical solutions, the connection port may be located on the partition plate; or the partition plate may have a flow channel on the side facing the cover, and the channel wall of the flow channel and the inner wall of the cover form a connection port.

[0031] In this technical solution, the connection port is located on the partition plate, or a flow channel is provided on the top of the partition plate. When the cover and the shell are connected, the channel wall of the flow channel and the inner wall of the cover form a connection port. The specific configuration can be determined according to actual needs.

[0032] In some technical solutions, the cross-sectional shape of the shell may be rectangular; and / or the cover includes a cover body and a sealing gasket, the cover body being connected to the shell, and the sealing gasket being disposed between the cover body and the shell.

[0033] In this technical solution, the cross-sectional shape of the housing is rectangular, thereby maximizing the use of the limited space inside the compressor, making the exhaust volume as large as possible, while also reducing the mass of the crankcase, thereby reducing the production cost of the compressor.

[0034] The cover includes a cover body and a sealing gasket. Specifically, the sealing gasket is placed between the cover body and the housing to ensure the airtightness of the cavity, prevent leakage, and thus help ensure the operating efficiency of the compressor.

[0035] Optionally, the four corners of the rectangle are chamfered.

[0036] In some technical solutions, optionally, the cover includes a cover body and a sealing gasket, the sealing gasket has a through hole, the cover body has a first connecting hole and an insertion hole, either of the first connecting hole and the insertion hole communicates with the through hole, and the exhaust buffer structure also includes a connecting post, a fastener and an inner exhaust pipe, wherein the connecting post is disposed in at least one of the first buffer cavity and the second buffer cavity, the connecting post has a second connecting hole, the fastener passes through the first connecting hole and the through hole respectively and is connected to the second connecting hole, the insertion end of the inner exhaust pipe passes through the insertion hole and the through hole respectively and extends into the second buffer cavity, and the inner exhaust pipe communicates with the second buffer cavity.

[0037] In this technical solution, the exhaust buffer structure is further defined as including a connecting column, a fastener and an inner exhaust pipe. Specifically, the connecting column is disposed in the first buffer cavity, or the connecting column is disposed in the second buffer cavity, or a connecting column is disposed in the first buffer cavity and the second buffer cavity respectively.

[0038] The connecting post is provided with a second connecting hole. Fasteners pass through the first connecting hole on the cover body and the through hole on the sealing gasket, respectively, and are connected to the second connecting hole, thereby achieving reliable assembly between the cover body and the housing. Optionally, when a connecting post is provided in the first buffer cavity and the second buffer cavity respectively, the number of the first connecting hole, the through hole, and the fasteners correspond one-to-one with the number of connecting posts.

[0039] The insertion end of the inner exhaust pipe extends into the second buffer chamber through the insertion hole on the cover body and the through hole on the sealing gasket, respectively. Specifically, during the operation of the compressor, the compressed high-pressure gas flows into the first buffer chamber through the flow hole and into the second buffer chamber through the connecting port, and finally is discharged through the inner exhaust pipe to achieve exhaust buffering.

[0040] Optionally, fasteners include screws.

[0041] 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.

[0042] 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

[0043] 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:

[0044] Figure 1 One of the structural schematic diagrams of a crankcase according to an embodiment of the present invention is shown;

[0045] Figure 2 It shows Figure 1 An enlarged view of the crankcase at point A in the illustrated embodiment;

[0046] Figure 3 An exploded view of a crankcase according to an embodiment of the present invention is shown;

[0047] Figure 4 A second schematic diagram of the crankcase according to an embodiment of the present invention is shown;

[0048] Figure 5 A third schematic diagram of the crankcase according to an embodiment of the present invention is shown;

[0049] Figure 6 A fourth schematic diagram of the crankcase according to an embodiment of the present invention is shown;

[0050] Figure 7 Fifth schematic diagram of the crankcase according to an embodiment of the present invention is shown;

[0051] Figure 8 One of the structural schematic diagrams of a sealing gasket according to an embodiment of the present invention is shown;

[0052] Figure 9 A second schematic diagram of the structure of a sealing gasket according to an embodiment of the present invention is shown;

[0053] Figure 10 One of the structural schematic diagrams of the cover body according to an embodiment of the present invention is shown;

[0054] Figure 11 A second schematic diagram of the structure of the cover body according to an embodiment of the present invention is shown;

[0055] Figure 12 A schematic diagram of the structure of a fastener according to an embodiment of the present invention is shown;

[0056] Figure 13 A schematic diagram of a compressor according to an embodiment of the present invention is shown.

[0057] in, Figures 1 to 13 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0058] 100 Compressor, 110 Crankcase, 111 Flow hole, 112 Cylinder block, 120 Exhaust buffer structure, 121 Cavity, 122 Partition plate, 123 Housing, 124 Cover, 125 Cover body, 126 Sealing gasket, 127 Through hole, 128 First connecting hole, 129 Insertion hole, 130 First buffer chamber, 140 Second buffer chamber, 150 Connecting port, 160 Buffer channel, 161 First buffer channel, 162 Second buffer channel, 170 First end, 180 Second end, 190 Buffer part, 191 Buffer wall, 210 Flow groove, 220 Connecting column, 221 Second connecting hole, 230 Fastener, 240 Piston, 250 Compression chamber, 260 Motor, 270 Crankshaft assembly, 280 Intake and exhaust assembly, 281 Intake channel, 282 Exhaust channel, 290 Inner pipe. Detailed Implementation

[0059] 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.

[0060] 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.

[0061] The following reference Figures 1 to 13 To describe the compressor 100 and refrigeration equipment provided according to some embodiments of the present invention.

[0062] In one embodiment according to this application, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 13As shown, a compressor 100 is proposed, comprising: a crankcase 110, the crankcase 110 including a cylinder block 112 and a flow passage 111; a piston 240 disposed in the cylinder block 112 and forming a compression chamber 250 with the cylinder block 112; a motor 260 and a crankshaft assembly 270, one end of the crankshaft assembly 270 being connected to the piston 240, and the other end of the crankshaft assembly 270 passing through the crankcase 110 and connected to the motor 260; and an intake and exhaust assembly 280 disposed on the side of the cylinder block 112 away from the crankshaft assembly 270, the intake and exhaust assembly 280 having an intake passage 281 and an exhaust passage 282, the intake passage 281 being connected to the compression chamber 250. 50 is connected, one end of the exhaust passage 282 is connected to the compression chamber 250, and the other end of the exhaust passage 282 is connected to the flow hole 111; the exhaust buffer structure 120 is provided in the crankcase 110, the exhaust buffer structure 120 includes a cavity 121 and a partition plate 122, the partition plate 122 is provided in the cavity 121, and extends longitudinally along the exhaust buffer structure 120 to divide the cavity 121 into a first buffer cavity 130 and a second buffer cavity 140, the first buffer cavity 130 is connected to the flow hole 111; the connecting port 150 is provided in the exhaust buffer structure 120, and the first buffer cavity 130 is connected to the second buffer cavity 140 through the connecting port 150.

[0063] The compressor 100 provided in this embodiment of the invention includes a crankcase 110, a piston 240, a motor 260, a crankshaft assembly 270, an intake and exhaust assembly 280, an exhaust buffer structure 120, and a connecting port 150. Specifically, the exhaust buffer structure 120 includes a cavity 121 and a partition plate 122. The partition plate 122 is disposed within the cavity 121 and extends longitudinally to divide the cavity 121 into a first buffer cavity 130 and a second buffer cavity 140. The first buffer cavity 130 communicates with a flow hole 111 and is connected to the second buffer cavity 140 through the connecting port 150. Optionally, the compressor 100 further includes an inner discharge pipe 290, which communicates with the second buffer cavity 140.

[0064] Specifically, during the operation of the compressor 100, low-pressure gas enters the compression chamber 250 through the intake passage 281. The motor 260 drives the piston 240 to move relative to the cylinder block 112 via the crankshaft assembly 270, thereby compressing the low-pressure gas drawn into the compression chamber 250. The compressed high-pressure gas flows into the flow passage 282 through the flow hole 111, then into the first buffer chamber 130 through the flow hole 111, and finally into the second buffer chamber 140 through the connecting port 150, and is finally discharged through the inner discharge pipe 290. It can be understood that the first buffer chamber 130 and the second buffer chamber 140 are high-pressure chambers.

[0065] Since the partition plate 122 divides the cavity 121 into two high-pressure chambers, that is, the exhaust buffer structure 120 is formed as an integral dual-chamber structure and is separated by the partition plate 122. Therefore, compared with the crankcase with two independent high-pressure chambers in the related technology, the space inside the compressor 100 is effectively utilized, the exhaust volume is increased and the mass of the crankcase 110 is reduced, which helps to reduce the production cost of the compressor 100.

[0066] like Figure 1 and Figure 2 As shown, in some embodiments, optionally, the exhaust buffer structure 120 further includes a buffer channel 160, which is disposed in at least one of the first buffer cavity 130 and the second buffer cavity 140. Since the buffer channel 160 is disposed in the first buffer cavity 130, the first buffer cavity 130 is connected to the communication port 150 through the buffer channel 160. Since the buffer channel 160 is disposed in the second buffer cavity 140, the communication port 150 is connected to the second buffer cavity 140 through the buffer channel 160.

[0067] In this embodiment, the exhaust buffer structure 120 further includes a buffer channel 160. Specifically, the buffer channel 160 is disposed in the first buffer chamber 130, and the first buffer chamber 130 is connected to the communication port 150 through the buffer channel 160. That is, the high-pressure gas flowing into the first buffer chamber 130 from the flow hole 111 flows into the second buffer chamber 140 through the buffer channel 160 and the communication port 150 in sequence.

[0068] Alternatively, the buffer channel 160 is disposed in the second buffer chamber 140, and the connecting port 150 is connected to the second buffer chamber 140 through the buffer channel 160. That is, the high-pressure gas flowing into the first buffer chamber 130 from the flow hole 111 flows into the second buffer chamber 140 through the connecting port 150 and the buffer channel 160 in sequence.

[0069] Alternatively, there may be two buffer channels 160, one of which is located in the first buffer chamber 130 and the other is located in the second buffer chamber 140. Specifically, the high-pressure gas flowing into the first buffer chamber 130 from the flow hole 111 flows into the second buffer chamber 140 via the buffer channel 160 in the first buffer chamber 130, the connecting port 150, and the buffer channel 160 in the second buffer chamber 140.

[0070] Because of the buffer channel 160, the high-pressure gas can be buffered as it flows from the first buffer chamber 130 into the second buffer chamber 140, which helps to reduce the pulsation during the flow of high-pressure gas and thus reduce the noise of the compressor 100 during operation.

[0071] like Figure 2As shown, in some embodiments, the buffer channel 160 optionally includes a first end 170 and a second end 180 facing away from each other. The first end 170 is closer to the connection port 150 than the second end 180, and the flow area of ​​the first end 170 is smaller than the flow area of ​​the second end 180.

[0072] In this embodiment, the buffer channel 160 is defined to include a first end 170 and a second end 180 facing away from each other. Specifically, the first end 170 of the buffer channel 160 is closer to the connecting port 150 than the second end 180, and the flow area of ​​the first end 170 is smaller than the flow area of ​​the second end 180. Specifically, when the buffer channel 160 is disposed within the first buffer cavity 130, the high-pressure gas flowing into the first buffer cavity 130 from the flow hole 111 changes its flow cross-section as it flows through the buffer channel 160 to the connecting port 150, thereby providing a buffer for the change in gas cross-section. When the buffer channel 160 is disposed within the second buffer cavity 140, the high-pressure gas flowing into the first buffer cavity 130 from the flow hole 111 changes its flow cross-section as it flows through the connecting port 150 and the buffer channel 160 sequentially into the second buffer cavity 140, thereby providing a buffer for the change in gas cross-section.

[0073] By providing a buffer channel 160 with a variable cross-section in the first buffer chamber 130 and / or the second buffer chamber 140, the pulsation during the flow of high-pressure gas from the first buffer chamber 130 into the second buffer chamber 140 is effectively reduced, thereby improving the noise reduction capability of the compressor 100 and enhancing the user's experience of using the refrigeration equipment with the compressor 100.

[0074] like Figure 1 and Figure 2 As shown, in some embodiments, optionally, the exhaust buffer structure 120 further includes a buffer section 190, which is connected to the partition plate 122 and located in at least one of the first buffer cavity 130 and the second buffer cavity 140. The buffer section 190 is provided with a buffer wall 191, which forms a buffer channel 160 with the inner wall of the cavity 121.

[0075] In this embodiment, the exhaust buffer structure 120 further includes a buffer section 190. Specifically, the buffer section 190 is connected to the partition plate 122. Specifically, when the buffer section 190 is located in the first buffer cavity 130, the buffer wall 191 of the buffer section 190 and the inner wall of the cavity 121 form a buffer channel 160. When the buffer section 190 is located in the second buffer cavity 140, the buffer wall 191 of the buffer section 190 and the inner wall of the cavity 121 form a buffer channel 160.

[0076] Since the buffer wall 191 and the inner wall of the cavity 121 form a buffer channel 160, that is, the inner wall of the cavity 121 constitutes part of the channel wall of the buffer channel 160, the buffer part 190 is set on one side of the partition plate 122 and close to the inner wall of the cavity 121. Compared with setting the buffer part 190 in the middle of the partition plate 122, which requires setting both sides of the buffer channel 160, the structure inside the cavity 121 is fully utilized. While realizing gas flow buffering, it avoids occupying too much exhaust volume in the first buffer cavity 130 or the second buffer cavity 140 due to the setting of the buffer channel 160. At the same time, it is also conducive to reducing the mass of the crankcase 110, thereby reducing the production cost of the compressor 100.

[0077] Optionally, the buffer section 190 and the partition plate 122 are an integral structure.

[0078] In some embodiments, the buffer wall 191 may optionally be configured as a curved surface or a plane.

[0079] In this embodiment, the buffer wall 191 is curved. Alternatively, the buffer wall 191 can be planar. The specific configuration can be adjusted according to actual needs. This allows the buffer wall 191 and the inner wall of the cavity 121 to form a variable cross-section buffer channel 160, providing buffering for changes in gas cross-section and helping to reduce pulsating noise during compressor 100 operation.

[0080] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, optionally, there are two buffer sections 190, which are located on opposite sides of the partition plate 122. The buffer wall 191 of one buffer section 190 forms a first buffer channel 161 with the inner wall of the cavity 121, and the buffer wall 191 of the other buffer section 190 forms a second buffer channel 162 with the inner wall of the cavity 121. The first buffer channel 161 is connected to the second buffer channel 162 through the communication port 150.

[0081] In this embodiment, the number of buffer sections 190 is limited to two. Specifically, the two buffer sections 190 are located on opposite sides of the partition plate 122. That is, one buffer section 190 is located in the first buffer chamber 130, and the buffer wall 191 of the buffer section 190 forms a first buffer channel 161 with the inner wall of the chamber 121. The other buffer section 190 is located in the second buffer chamber 140, and the buffer wall 191 of the buffer section 190 forms a second buffer channel 162 with the inner wall of the chamber 121. Specifically, the high-pressure gas flowing into the first buffer chamber 130 from the flow hole 111 flows into the second buffer chamber 140 sequentially through the first buffer channel 161, the connecting port 150, and the second buffer channel 162, thereby improving the buffering effect on the high-pressure gas. As the high-pressure gas flows from the first buffer chamber 130 into the second buffer chamber 140, the exhaust pulsation of the high-pressure gas is further reduced, thereby reducing the noise of the compressor 100 during operation.

[0082] like Figure 4 As shown, in some embodiments, optionally, the connecting port 150 and the flow hole 111 are staggered along the direction from the first buffer cavity 130 to the second buffer cavity 140.

[0083] In this embodiment, since the connecting port 150 and the flow hole 111 are offset in the direction from the first buffer chamber 130 to the second buffer chamber 140, it can effectively prevent the high-pressure gas flowing into the first buffer chamber 130 from the flow hole 111 from flowing directly into the second buffer chamber 140 through the connecting port 150 due to the connection port 150 and the flow hole 111 being opposite to each other. This helps to extend the flow path of the high-pressure gas in the first buffer chamber 130, reduce exhaust pulsation, and improve the noise reduction capability of the compressor 100.

[0084] like Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, optionally, the exhaust buffer structure 120 includes a housing 123 and a cover 124, wherein a partition plate 122 is disposed inside the housing 123, and the cover 124 is connected to the housing 123 and surrounds the housing 123 to form a cavity 121.

[0085] In this embodiment, the exhaust buffer structure 120 is defined as including a housing 123 and a cover 124. Specifically, the housing 123 and the cover 124 are connected, and the housing 123 and the cover 124 enclose a cavity 121. That is, the housing 123 and the cover 124 are integral structural components, thus forming an integral dual-cavity structure together with the partition plate 122. Compared with the crankcase with two independent high-pressure chambers in the related art, this effectively utilizes the space inside the compressor 100, increases the exhaust volume, reduces the mass of the crankcase 110, and also helps to reduce the processing difficulty of the crankcase 110, thereby reducing the production cost of the compressor 100.

[0086] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, optionally, the communication port 150 is provided on the partition plate 122; or the partition plate 122 is provided with a flow groove 210 on the side facing the cover 124, and the groove wall of the flow groove 210 and the inner wall of the cover 124 form a communication port 150.

[0087] In this embodiment, the communication port 150 is provided on the partition plate 122, or the top of the partition plate 122 is provided with a flow groove 210. When the cover 124 is connected to the housing 123, the groove wall of the flow groove 210 and the inner wall of the cover 124 form the communication port 150. The specific configuration can be made according to actual needs.

[0088] In some embodiments, the housing 123 may optionally have a rectangular cross-sectional shape; and / or the cover 124 may include a cover body 125 and a sealing gasket 126, wherein the cover body 125 is connected to the housing 123 and the sealing gasket 126 is disposed between the cover body 125 and the housing 123.

[0089] In this embodiment, the cross-sectional shape of the housing 123 is rectangular, thereby maximizing the use of the limited space within the compressor 100, making the exhaust volume as large as possible, while also reducing the mass of the crankcase 110, thereby reducing the production cost of the compressor 100.

[0090] like Figure 3 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, the cover 124 includes a cover body 125 and a sealing gasket 126. Specifically, the sealing gasket 126 is disposed between the cover body 125 and the housing 123 to ensure the airtightness of the cavity 121, prevent leakage, and thus help ensure the operating efficiency of the compressor 100.

[0091] Optionally, the four corners of the rectangle are chamfered.

[0092] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, in some embodiments, optionally, the cover 124 includes a cover body 125 and a sealing gasket 126. The sealing gasket 126 has a through hole 127. The cover body 125 has a first connecting hole 128 and an insertion hole 129. Either the first connecting hole 128 or the insertion hole 129 communicates with the through hole 127. The exhaust buffer structure 120 also includes a connecting post 220, a fastener 230, and an inner drain pipe 290. The connecting post 220 is located in at least one of the first buffer cavity 130 and the second buffer cavity 140. The connecting post 220 has a second connecting hole 221. The fastener 230 passes through the first connecting hole 128 and the through hole 127 respectively and is connected to the second connecting hole 221. The insertion end of the inner drain pipe 290 passes through the insertion hole 129 and the through hole 127 respectively and extends into the second buffer cavity 140. The inner drain pipe 290 communicates with the second buffer cavity 140.

[0093] In this embodiment, the exhaust buffer structure 120 is further defined as including a connecting post 220, a fastener 230 and an inner exhaust pipe 290. Specifically, the connecting post 220 is disposed in the first buffer cavity 130, or the connecting post 220 is disposed in the second buffer cavity 140, or a connecting post 220 is disposed in the first buffer cavity 130 and the second buffer cavity 140 respectively.

[0094] The connecting post 220 is provided with a second connecting hole 221. Fasteners 230 pass through the first connecting hole 128 on the cover body 125 and the through hole 127 on the sealing gasket 126, respectively, and are connected to the second connecting hole 221, thereby achieving reliable assembly between the cover body 125 and the housing 123. Optionally, when one connecting post 220 is provided in the first buffer cavity 130 and the second buffer cavity 140, the number of the first connecting hole 128, the through hole 127, and the fasteners 230 correspond one-to-one with the number of connecting posts 220.

[0095] The insertion end of the inner exhaust pipe 290 passes through the insertion hole 129 on the cover body 125 and the through hole 127 on the sealing gasket 126 and extends into the second buffer chamber 140. Specifically, during the operation of the compressor 100, the compressed high-pressure gas flows into the first buffer chamber 130 through the flow hole 111 and into the second buffer chamber 140 through the connecting port 150, and finally is discharged through the inner exhaust pipe 290 to achieve exhaust buffering.

[0096] Optionally, fastener 230 includes screws.

[0097] The compressor 100 comprises a crankcase 110, a high-pressure chamber gasket (sealing gasket 126), a high-pressure chamber cover (cover body 125), and high-pressure chamber screws (fasteners 230). To maximize the use of limited space and achieve the largest possible exhaust volume, a rectangular integrated dual-chamber structure (exhaust buffer structure 120) is adopted. To ensure airtightness, a high-pressure chamber gasket (sealing gasket 126) is placed between the high-pressure chamber (chamber body 121) and the high-pressure chamber cover (cover body 125), with two holes (through holes 127) left in the middle for the screws to pass through. The two high-pressure chambers also use an integrated high-pressure chamber cover (cover body 125), which is fixed to the top of the high-pressure chamber with two screws (fasteners 230). The exhaust port (connecting port 150) between the two high-pressure chambers is located on top of the middle partition plate (partition plate 122) for machining purposes, and curved surfaces (buffer walls 191) are added on both sides of the exhaust port to provide buffering for changes in gas cross-section. During the exhaust process, the high-temperature and high-pressure gas first flows into cavity A (first buffer cavity 130), flows through the buffer curved surface (buffer wall 191) in cavity A, and flows into cavity B (second buffer cavity 140) through the exhaust hole (connecting port 150).

[0098] This invention effectively utilizes the internal space of the compressor 100, increasing the exhaust volume while reducing the mass of the crankcase 110. The flow-through hole structure (connection port 150) between the two high-pressure chambers is designed at the top of the high-pressure chamber partition surface (partition plate 122), with buffer surfaces (buffer walls 191) on both sides, reducing costs and further improving noise reduction capabilities.

[0099] Optionally, compressor 100 includes a reciprocating compressor.

[0100] Specifically, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 13As shown, the compressor 100 includes a crankcase 110, a piston 240, a motor 260, a crankshaft assembly 270, an exhaust buffer structure 120, and a connecting port 150. Specifically, the exhaust buffer structure 120 includes a cavity 121 and a partition plate 122. The partition plate 122 is disposed within the cavity 121 and extends longitudinally to divide the cavity 121 into a first buffer cavity 130 and a second buffer cavity 140. The first buffer cavity 130 communicates with a flow hole 111 and is connected to the second buffer cavity 140 through the connecting port 150. Optionally, the compressor 100 also includes an inner discharge pipe 290, which communicates with the second buffer cavity 140. Specifically, during the operation of the compressor 100, low-pressure gas enters the compression chamber 250 through the intake passage 281. The motor 260 drives the piston 240 to move relative to the cylinder block 112 via the crankshaft assembly 270, thereby compressing the low-pressure gas drawn into the compression chamber 250. The compressed high-pressure gas flows into the flow passage 282 through the exhaust passage 282 and then into the first buffer chamber 130. It then flows into the second buffer chamber 140 through the connecting port 150 and is finally discharged through the inner exhaust pipe. It can be understood that the first buffer chamber 130 and the second buffer chamber 140 are high-pressure chambers.

[0101] Since the partition plate 122 divides the cavity 121 into two high-pressure chambers, that is, the exhaust buffer structure 120 is formed as an integral dual-chamber structure and is separated by the partition plate 122. Therefore, compared with the crankcase with two independent high-pressure chambers in the related technology, the space inside the compressor 100 is effectively utilized, the exhaust volume is increased and the mass of the crankcase 110 is reduced, which helps to reduce the production cost of the compressor 100.

[0102] like Figure 1 and Figure 2 As shown, in some embodiments, optionally, the exhaust buffer structure 120 further includes a buffer channel 160, which is disposed in at least one of the first buffer cavity 130 and the second buffer cavity 140. Since the buffer channel 160 is disposed in the first buffer cavity 130, the first buffer cavity 130 is connected to the communication port 150 through the buffer channel 160. Since the buffer channel 160 is disposed in the second buffer cavity 140, the communication port 150 is connected to the second buffer cavity 140 through the buffer channel 160.

[0103] In this embodiment, the exhaust buffer structure 120 further includes a buffer channel 160. Specifically, the buffer channel 160 is disposed in the first buffer chamber 130, and the first buffer chamber 130 is connected to the communication port 150 through the buffer channel 160. That is, the high-pressure gas flowing into the first buffer chamber 130 from the flow hole 111 flows into the second buffer chamber 140 through the buffer channel 160 and the communication port 150 in sequence.

[0104] Alternatively, the buffer channel 160 is disposed in the second buffer chamber 140, and the connecting port 150 is connected to the second buffer chamber 140 through the buffer channel 160. That is, the high-pressure gas flowing into the first buffer chamber 130 from the flow hole 111 flows into the second buffer chamber 140 through the connecting port 150 and the buffer channel 160 in sequence.

[0105] Alternatively, there may be two buffer channels 160, one of which is located in the first buffer chamber 130 and the other is located in the second buffer chamber 140. Specifically, the high-pressure gas flowing into the first buffer chamber 130 from the flow hole 111 flows into the second buffer chamber 140 via the buffer channel 160 in the first buffer chamber 130, the connecting port 150, and the buffer channel 160 in the second buffer chamber 140.

[0106] Because of the buffer channel 160, the high-pressure gas can be buffered as it flows from the first buffer chamber 130 into the second buffer chamber 140, which helps to reduce the pulsation during the flow of high-pressure gas and thus reduce the noise of the compressor 100 during operation. Specifically, in most of the frequency band before 6000Hz, the noise reduction capability of the compressor 100 of the present invention in the exhaust system is better than that of compressors in related technologies.

[0107] like Figure 2 As shown, in some embodiments, the buffer channel 160 optionally includes a first end 170 and a second end 180 facing away from each other. The first end 170 is closer to the connection port 150 than the second end 180, and the flow area of ​​the first end 170 is smaller than the flow area of ​​the second end 180.

[0108] In this embodiment, the buffer channel 160 is defined to include a first end 170 and a second end 180 facing away from each other. Specifically, the first end 170 of the buffer channel 160 is closer to the connecting port 150 than the second end 180, and the flow area of ​​the first end 170 is smaller than the flow area of ​​the second end 180. Specifically, when the buffer channel 160 is disposed within the first buffer cavity 130, the high-pressure gas flowing into the first buffer cavity 130 from the flow hole 111 changes its flow cross-section as it flows through the buffer channel 160 to the connecting port 150, thereby providing a buffer for the change in gas cross-section. When the buffer channel 160 is disposed within the second buffer cavity 140, the high-pressure gas flowing into the first buffer cavity 130 from the flow hole 111 changes its flow cross-section as it flows through the connecting port 150 and the buffer channel 160 sequentially into the second buffer cavity 140, thereby providing a buffer for the change in gas cross-section.

[0109] By providing a buffer channel 160 with a variable cross-section in the first buffer chamber 130 and / or the second buffer chamber 140, the pulsation during the flow of high-pressure gas from the first buffer chamber 130 into the second buffer chamber 140 is effectively reduced, thereby improving the noise reduction capability of the compressor 100 and enhancing the user's experience of using the refrigeration equipment with the compressor 100.

[0110] Optionally, the crankshaft assembly 270 includes a crankshaft and a connecting rod, with one end of the crankshaft connected to the piston 240 via the connecting rod.

[0111] Optionally, the intake and exhaust assembly 280 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 112 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 281.

[0112] 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 250. 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 282.

[0113] 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.

[0114] Alternatively, the refrigeration equipment may include refrigerators, air conditioners, or freezers.

[0115] 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.

[0116] 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.

[0117] 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. An exhaust buffer structure is provided in the crankcase. The exhaust buffer structure includes a cavity and a partition plate. The partition plate is provided in the cavity and extends longitudinally along the exhaust buffer structure to divide the cavity into a first buffer cavity and a second buffer cavity. The first buffer cavity is connected to the flow hole. A connecting port is provided in the exhaust buffer structure, through which the first buffer chamber is connected to the second buffer chamber.

2. The compressor of claim 1, wherein, Also includes: A buffer channel is disposed in at least one of the first buffer cavity and the second buffer cavity. Since the buffer channel is disposed in the first buffer cavity, the first buffer cavity is connected to the communication port through the buffer channel. Since the buffer channel is disposed in the second buffer cavity, the communication port is connected to the second buffer cavity through the buffer channel.

3. The compressor of claim 2, wherein, The buffer channel includes a first end and a second end facing away from each other. The first end is closer to the connection port than the second end, and the flow area of ​​the first end is smaller than that of the second end.

4. The compressor of claim 2, wherein, Also includes: A buffer section is connected to the partition plate and located in at least one of the first buffer cavity and the second buffer cavity. The buffer section is provided with a buffer wall, and the buffer wall and the inner wall of the cavity form the buffer channel.

5. The compressor of claim 4, wherein, The buffer wall is constructed as a curved surface or a plane.

6. The compressor of claim 4, wherein, There are two buffer sections, which are located on opposite sides of the partition plate. The buffer wall of one buffer section forms a first buffer channel with the inner wall of the cavity, and the buffer wall of the other buffer section forms a second buffer channel with the inner wall of the cavity. The first buffer channel is connected to the second buffer channel through the connecting port.

7. The compressor of any one of claims 1 to 6, wherein, Along the direction from the first buffer cavity to the second buffer cavity, the connecting port is offset from the flow hole.

8. The compressor of any one of claims 1 to 6, wherein, The exhaust buffer structure includes: The housing, wherein the partition plate is disposed within the housing; The cover is connected to the shell and together with the shell forms the cavity.

9. The compressor according to claim 8, characterized in that, The connecting port is located on the partition plate; or The partition plate has a flow groove on the side facing the cover, and the groove wall of the flow groove forms the communication port with the inner wall of the cover.

10. The compressor of claim 8, wherein, The shell has a rectangular cross-sectional shape; and / or the cover includes a cover body and a sealing gasket, the cover body being connected to the shell, and the sealing gasket being disposed between the cover body and the shell.

11. The compressor of claim 10, wherein, Based on the fact that the cover body includes a cover body and a sealing gasket, the sealing gasket is provided with a through hole, the cover body is provided with a first connecting hole and an insertion hole, and either the first connecting hole or the insertion hole communicates with the through hole, the exhaust buffer structure further includes: A connecting post is disposed in at least one of the first buffer cavity and the second buffer cavity, and the connecting post is provided with a second connecting hole; Fasteners, wherein the fasteners pass through the first connecting hole and the through hole respectively, and are connected to the second connecting hole; The inner tube has its insertion end passing through the insertion hole and the through hole respectively, and extending into the second buffer cavity. The inner tube is connected to the second buffer cavity.

12. A refrigeration appliance characterized in that, Includes the compressor as described in any one of claims 1 to 11.

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