Compressor exhaust structure, compressor, and apparatus
By designing a multi-channel exhaust structure in the compressor, the problems of high noise and vibration of the single-channel exhaust structure are solved, thus reducing noise and vibration, adapting to the needs of different refrigeration systems, and improving the practicality of the compressor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGZHOU WANBAO UCT COMPRESSOR CO LTD
- Filing Date
- 2022-11-04
- Publication Date
- 2026-05-12
AI Technical Summary
Existing reciprocating compressors use a single-channel exhaust structure, which results in significant noise and vibration, making them unsuitable for meeting the stringent requirements of consumers, especially in mobile refrigeration applications such as commercial vehicles, RVs, and trucks.
A multi-channel exhaust structure is designed, including cylinder bore, valve assembly, cylinder head and baffle structure, forming multiple exhaust channels. By controlling the channel parameters, exhaust resistance and airflow pulsation are reduced, thereby achieving noise reduction and vibration reduction.
It effectively reduces compressor noise and vibration, improves customer experience, adapts to the cooling capacity, noise, and vibration requirements of different refrigeration systems, and enhances practicality.
Smart Images
Figure CN115653870B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of compressors, and in particular to a compressor exhaust structure, compressor, and equipment. Background Technology
[0002] Existing reciprocating compressors all employ a single-channel exhaust structure. This means that after refrigerant is compressed, it enters the cylinder head through the cylinder bore, then passes through the valve assembly via a single channel before exiting through the exhaust port to the internal exhaust pipe. This exhaust method results in a single exhaust channel, leading to significant noise and vibration, especially in mobile refrigeration applications such as commercial vehicles, RVs, and trucks. In these applications, the compressor is very close to the consumer, and the requirements for noise and vibration control are extremely stringent; current technology can no longer meet these demands. Summary of the Invention
[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a compressor exhaust structure, compressor and equipment, which effectively reduces exhaust resistance and compressor noise by increasing the exhaust passage.
[0004] The technical solution adopted by this invention to solve its technical problem is:
[0005] In a first aspect, a compressor exhaust structure includes a cylinder seat, a valve assembly, and a cylinder head. The cylinder seat has a cylinder bore, and the cylinder head is connected to the cylinder seat and defines the valve assembly at the front end of the cylinder bore. The valve assembly has an intake valve and an exhaust valve. The cylinder head has an exhaust chamber that mates with the exhaust valve. The exhaust chamber includes a first exhaust chamber and a second exhaust chamber formed by a partition structure. The partition structure has a first gas groove connecting the first exhaust chamber and the second exhaust chamber. The cylinder seat has an exhaust port and a return gas chamber. The return gas chamber includes a first return gas chamber and a second return gas chamber. The cylinder seat has a second gas groove connecting the first return gas chamber and the exhaust port. The cylinder seat has a third gas groove connecting the second return gas chamber and the exhaust port. The valve assembly has a first exhaust through hole connecting the first exhaust chamber and the first return gas chamber. The valve assembly has a second exhaust through hole connecting the second exhaust chamber and the second return gas chamber.
[0006] In conjunction with the first aspect, in some implementations of the first aspect, the valve assembly includes a valve plate, an intake valve plate, and an exhaust valve plate. The valve plate extends from a first surface to a second surface along its thickness direction. The valve plate is provided with an intake hole and an exhaust hole extending from the first surface to the second surface. The intake valve plate is abutted against the first surface of the valve plate. The intake valve plate is provided with an intake valve tongue at a position corresponding to the intake hole and an exhaust clearance hole at a position corresponding to the exhaust hole. The exhaust valve plate is abutted against the second surface of the valve plate. The exhaust valve plate is provided with an exhaust valve tongue at a position corresponding to the exhaust hole and an intake clearance hole at a position corresponding to the intake hole.
[0007] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the valve assembly further includes a cylinder seat gasket disposed between the intake valve plate and the cylinder seat, wherein the cylinder seat forms a first end face extending to the cylinder seat gasket at the front end of the cylinder bore, and the cylinder seat is recessed on the first end face to form a first return air chamber, a second return air chamber, a second air groove, and a third air groove.
[0008] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the first return air chamber extends in an arc shape around the cylinder bore on the first end face.
[0009] In conjunction with the first aspect and the above-described implementations, in some implementations of the first aspect, the valve assembly further includes a cylinder head gasket disposed between the exhaust valve plate and the cylinder head, the cylinder head forming a second end face extending to the cylinder head gasket, and the cylinder head recessed on the second end face to form the first exhaust chamber, the second exhaust chamber, and the first gas groove.
[0010] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the cylinder seat has a plurality of screw holes on the first end face, and the valve assembly and the cylinder head have screw through holes at corresponding positions. The valve assembly and the cylinder head are mounted on the cylinder seat by screws that pass through the screw through holes and are connected to the screw holes.
[0011] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, one of the screw holes forms the exhaust port, a gap is left between the screw through hole and the screw, and the gap defines an exhaust passage communicating with the cylinder head, and also includes an internal exhaust pipe, the end of the internal exhaust pipe is provided with a connector, the connector is locked to the cylinder head by a screw installed on the exhaust port, and is connected to the exhaust passage.
[0012] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the cylinder head has a recessed mounting groove on its back side, and the connector is installed in the mounting groove.
[0013] In a second aspect, a compressor includes the compressor exhaust structure described in any implementation of the first aspect.
[0014] Thirdly, an apparatus comprising the compressor described in any implementation of the second aspect.
[0015] One of the above technical solutions has at least one of the following advantages or beneficial effects: The technical solution of the present invention innovatively designs the compressor exhaust structure, wherein the cylinder bore → exhaust valve → first exhaust chamber → first exhaust through hole → first return gas chamber → second gas groove → exhaust interface forms a first exhaust channel, and the cylinder bore → exhaust valve → first exhaust chamber → first gas groove → second exhaust chamber → second exhaust through hole → second return gas chamber → third gas groove → exhaust interface forms a second exhaust channel. After the refrigerant is compressed, it is guided from the cylinder bore to the exhaust interface through the first exhaust channel and the second exhaust channel respectively. The multi-channel compressor exhaust structure has the following advantages:
[0016] First, exhaust resistance can be reduced by increasing the exhaust passage, thereby reducing compressor noise;
[0017] Secondly, by controlling the parameters of different exhaust channels (including cross-sectional area, flow rate, flow channel length, etc.), the airflow pulsation from inside the compressor to the exhaust of the entire system can be changed, thereby reducing the noise and vibration of the entire system and improving the customer experience.
[0018] Third, the multi-channel exhaust structure can adapt to the different refrigeration system requirements for cooling capacity, noise, and vibration by controlling the refrigerant ratio in each exhaust channel, making it more widely applicable.
[0019] Additional aspects and advantages of the invention will be set forth in part 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
[0020] 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:
[0021] Figure 1 This is a schematic diagram of an embodiment of the compressor exhaust structure of the present invention;
[0022] Figure 2 yes Figure 1 The diagram shown is a first-view exploded structure schematic of one embodiment;
[0023] Figure 3 yes Figure 1 The diagram shown is a second-view exploded structure schematic of one embodiment. Detailed Implementation
[0024] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.
[0025] In this invention, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this invention, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.
[0026] In this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number. In the description of this invention, the terms "first" and "second" are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0027] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention based on the specific content of the technical solution.
[0028] See Figure 1 , Figure 2 , Figure 3An embodiment of the present invention provides a compressor exhaust structure, including a cylinder seat 100, a valve assembly 200, and a cylinder head 300. The cylinder seat 100 is provided with a cylinder bore 101. The cylinder head 300 is connected to the cylinder seat 100 and defines the valve assembly 200 at the front end of the cylinder bore 101. The valve assembly 200 is provided with an intake valve and an exhaust valve. The cylinder head 300 is provided with an exhaust chamber that mates with the exhaust valve. The exhaust chamber includes a first exhaust chamber 302 and a second exhaust chamber 303 formed by a partition structure 301. The partition structure 301 is provided with a first air groove 304 that connects the first exhaust chamber 302 and the second exhaust chamber 303. The first air groove 304 achieves noise reduction and throttling while enabling airflow conduction. The cylinder block 100 is provided with an exhaust port 102 and a return air chamber. The return air chamber includes a first return air chamber 103 and a second return air chamber 104. The cylinder block 100 is provided with a second air groove 105 connecting the first return air chamber 103 and the exhaust port 102, and a third air groove 106 connecting the second return air chamber 104 and the exhaust port 102. The second air groove 105 and the third air groove 106 achieve noise reduction and throttling while enabling airflow. The valve assembly 200 is provided with a first exhaust through hole 201 connecting the first exhaust chamber 302 and the first return air chamber 103, and a second exhaust through hole 202 connecting the second exhaust chamber 303 and the second return air chamber 104. The first exhaust through hole 201 and the second exhaust through hole 202 achieve noise reduction and throttling while enabling airflow.
[0029] Combination Figure 2 , Figure 3 The technical solution of this invention innovatively designs the compressor exhaust structure. A first exhaust channel is formed by cylinder bore 101 → exhaust valve → first exhaust chamber 302 → first exhaust through hole 201 → first return gas chamber 103 → second gas groove 105 → exhaust port 102. A second exhaust channel is formed by cylinder bore 101 → exhaust valve → first exhaust chamber 302 → first gas groove 304 → second exhaust chamber 303 → second exhaust through hole 202 → second return gas chamber 104 → third gas groove 106 → exhaust port 102. After compression, the refrigerant is guided from cylinder bore 101 through the first and second exhaust channels to the exhaust port 102. This multi-channel compressor exhaust structure has the following advantages:
[0030] First, exhaust resistance can be reduced by increasing the exhaust passage, thereby reducing compressor noise;
[0031] Secondly, by controlling the parameters of different exhaust channels (including cross-sectional area, flow rate, flow channel length, etc.), the airflow pulsation from inside the compressor to the exhaust of the entire system can be changed, thereby reducing the noise and vibration of the entire system and improving the customer experience.
[0032] Third, the multi-channel exhaust structure can adapt to the different refrigeration system requirements for cooling capacity, noise, and vibration by controlling the refrigerant ratio in each exhaust channel, making it more widely applicable.
[0033] See Figure 2 , Figure 3 The valve assembly 200 includes a valve plate 203, an intake valve plate 204, and an exhaust valve plate 205. The valve plate 203 extends from a first surface to a second surface along its thickness direction. The valve plate 203 has an intake hole and an exhaust hole extending from the first surface to the second surface. The intake valve plate 204 abuts against the first surface of the valve plate 203. The intake valve plate 204 has an intake valve tongue at the position corresponding to the intake hole and an exhaust clearance hole at the position corresponding to the exhaust hole. When the compressor is in intake operation, the intake valve tongue separates from the valve plate 203 to allow intake; when the compressor is in exhaust operation, it abuts against the valve plate 203 to close. The exhaust valve plate 205 abuts against the second surface of the valve plate 203. The exhaust valve plate 205 has an exhaust valve tongue at the position corresponding to the exhaust hole and an intake clearance hole at the position corresponding to the intake hole. When the compressor is in intake operation, the exhaust valve tongue abuts against the valve plate 203 to close; when the compressor is in exhaust operation, it separates from the valve plate 203 to allow exhaust.
[0034] In some embodiments, see Figure 2 , Figure 3 The valve assembly 200 also includes a cylinder seat gasket 206 disposed between the intake valve plate 204 and the cylinder seat 100. The cylinder seat 100 forms a flat first end face 107 extending to the cylinder seat gasket 206 at the front end of the cylinder bore 101. The cylinder seat 100 has a recessed first return air chamber 103, a second return air chamber 104, a second air groove 105, and a third air groove 106 on the first end face 107. The first return air chamber 103, the second return air chamber 104, the second air groove 105, and the third air groove 106 can be directly machined on the first end face 107 of the cylinder seat 100. Moreover, the cross-sectional area of the second air groove 105 and the third air groove 106 can be adjusted according to different compressor performance parameters to change the airflow pulsation from inside the compressor to the exhaust of the entire system, thereby reducing the noise and vibration of the entire system.
[0035] In some embodiments, see Figure 2 The first return air chamber 103 extends in an arc shape around the cylinder bore 101 on the first end face 107. In this embodiment, the first return air chamber 103 can make the most of the limited space of the first end face 107, increase the volume of the first return air chamber 103, and improve the noise reduction effect of the first return air chamber 103.
[0036] In some embodiments, see Figure 2 , Figure 3The valve assembly 200 also includes a cylinder head gasket 207 disposed between the exhaust valve plate 205 and the cylinder head 300. The cylinder head 300 forms a flat second end face 305 extending to the cylinder head gasket 207. A first exhaust chamber 302, a second exhaust chamber 303, and a first gas groove 304 are recessed in the second end face 305 of the cylinder head 300. The first exhaust chamber 302, the second exhaust chamber 303, and the first gas groove 304 can be directly machined on the second end face 305 of the cylinder head 300. Moreover, the cross-sectional area of the first gas groove 304 can be adjusted according to different compressor performance parameters to change the airflow pulsation from inside the compressor to the exhaust of the entire system, thereby reducing the noise and vibration of the entire system.
[0037] In some embodiments, see Figure 1 , Figure 2 , Figure 3 The cylinder block 100 has a plurality of screw holes 108 on its first end face 107. The valve assembly 200 and the cylinder head 300 have screw through holes 208 at corresponding positions. The valve assembly 200 and the cylinder head 300 are mounted on the cylinder block 100 by screws that pass through the screw through holes 208 and are connected to the screw holes 108.
[0038] Further, see Figure 2 One of the screw holes 108 forms an exhaust port 102. The exhaust port 102 and the screw hole 108 share a common hole on the first end face 107 of the cylinder block 100. A gap exists between the screw through hole 208 and the screw, defining an exhaust passage leading to the cylinder head 300. The system also includes an internal exhaust pipe with a connector at its end. The connector is locked to the cylinder head 300 by a screw installed on the exhaust port 102 and connects to the exhaust passage. Refrigerant entering the exhaust port 102 through the first and second exhaust passages is discharged through the gap between the screw through hole 208 and the screw, and finally enters the internal exhaust pipe through the connector. In this embodiment, by combining the exhaust passage with the screw through hole 208 for mounting the screw, the connection structure of the internal exhaust pipe on the cylinder block 100 is greatly simplified, and the gap between the screw through hole 208 and the screw further reduces noise.
[0039] See further Figure 1 , Figure 2 The cylinder head 300 has a recessed mounting groove 306 on its back side. The connector is installed in the mounting groove 306. After the connector is installed in the mounting groove 306, its end face is recessed on the back end face of the cylinder head 300 to avoid interference with the engine housing.
[0040] Embodiments of the present invention also provide a compressor, including the compressor exhaust structure of any of the above embodiments.
[0041] Embodiments of the present invention also provide a device including the compressor described in any of the above embodiments. The device includes a refrigerator, air conditioner, vehicle refrigerator, portable refrigerator, or a vehicle equipped with the aforementioned device.
[0042] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, 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.
[0043] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A compressor exhaust structure, characterized in that, The system includes a cylinder block, a valve assembly, and a cylinder head. The cylinder block has a cylinder bore, and the cylinder head is connected to the cylinder block and defines the valve assembly at the front end of the cylinder bore. The valve assembly has an intake valve and an exhaust valve. The cylinder head has an exhaust chamber that mates with the exhaust valve. The exhaust chamber includes a first exhaust chamber and a second exhaust chamber separated by a partition structure. The partition structure has a first groove connecting the first and second exhaust chambers. The cylinder block has an exhaust port and a return chamber. The return chamber includes a first return chamber and a second return chamber. The cylinder block has a second groove connecting the first return chamber and the exhaust port, and a third groove connecting the second return chamber and the exhaust port. The valve assembly... The component has a first exhaust through hole connecting the first exhaust chamber and the first return chamber. The valve assembly has a second exhaust through hole connecting the second exhaust chamber and the second return chamber. The valve assembly includes a valve plate, an intake valve plate, and an exhaust valve plate. The valve plate extends from a first surface to a second surface along the thickness direction. The valve plate has an intake hole and an exhaust hole extending from the first surface to the second surface. The intake valve plate is attached to the first surface of the valve plate. The intake valve plate has an intake valve tongue at the position corresponding to the intake hole and an exhaust clearance hole at the position corresponding to the exhaust hole. The exhaust valve plate is attached to the second surface of the valve plate. The exhaust valve plate has an exhaust valve tongue at the position corresponding to the exhaust hole and an intake clearance hole at the position corresponding to the intake hole.
2. The compressor exhaust structure according to claim 1, characterized in that, The valve assembly further includes a cylinder seat gasket disposed between the intake valve plate and the cylinder seat. The cylinder seat forms a first end face extending to the cylinder seat gasket at the front end of the cylinder bore. The cylinder seat has a first return air chamber, a second return air chamber, a second air groove, and a third air groove recessed on the first end face.
3. The compressor exhaust structure according to claim 2, characterized in that, The first return air chamber extends in an arc shape around the cylinder bore on the first end face.
4. The compressor exhaust structure according to claim 1, characterized in that, The valve assembly further includes a cylinder head gasket disposed between the exhaust valve plate and the cylinder head, the cylinder head forming a second end face extending to the cylinder head gasket, and the cylinder head having a recessed first exhaust chamber, a second exhaust chamber, and a first gas groove on the second end face.
5. The compressor exhaust structure according to claim 2, characterized in that, The cylinder block has multiple screw holes on the first end face, and the valve assembly and cylinder head have screw through holes at corresponding positions. The valve assembly and cylinder head are installed on the cylinder block by screws that pass through the screw through holes and are connected to the screw holes.
6. The compressor exhaust structure according to claim 5, characterized in that, One of the screw holes forms the exhaust port, and there is a gap between the screw through hole and the screw, which defines an exhaust passage that connects to the cylinder head. It also includes an internal exhaust pipe, the end of which is provided with a connector. The connector is locked to the cylinder head by a screw installed on the exhaust port and is connected to the exhaust passage.
7. The compressor exhaust structure according to claim 6, characterized in that, The cylinder head has a recessed mounting groove on its back side, and the connector is installed in the mounting groove.
8. A compressor, characterized in that, The compressor exhaust structure includes any one of claims 1 to 7.
9. A device, characterized in that, Includes the compressor as described in claim 8.