Exhaust non-return structure, static disc assembly, compressor and refrigeration equipment

Abstract

The invention provides an exhaust non-return structure, a static disc assembly, a compressor and refrigeration equipment. The exhaust non-return structure comprises a fixed valve seat and a movable valve seat. The fixed valve seat is cylindrical, an exhaust cavity with an opening in the bottom is formed in the fixed valve seat, lateral exhaust holes are formed in the peripheral wall of the fixed valve seat, top exhaust holes are formed in the top of the fixed valve seat, and the lateral exhaust holes and the top exhaust holes are both communicated with the exhaust cavity; the movable valve seat is provided with a containing cavity with an opening in the bottom, and the fixed valve seat is inserted into the containing cavity. The movable valve seat is movably arranged in the axial direction of the fixed valve seat and is provided with a first movement position and a second movement position. When the movable valve seat moves to a first movement position, the peripheral wall of the accommodating cavity closes the lateral exhaust hole; and when the movable valve seat moves to a second movement position, the peripheral wall of the accommodating cavity opens the lateral exhaust hole. By applying the exhaust non-return structure, the problem of fracture of parts of the scroll compressor can be effectively avoided, and the reliability of the compressor is improved.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, specifically to an exhaust check structure, a stationary disc assembly using the exhaust check structure, a compressor using the stationary disc assembly, and refrigeration equipment using the compressor. Background Technology

[0002] A scroll compressor consists of a sealed casing, a stationary scroll, a moving scroll, a support frame, an eccentric crankshaft, an anti-rotation mechanism, and a motor. Both the moving and stationary scrolls have helical profiles. The moving scroll is eccentrically positioned relative to the stationary scroll, with a 180° offset, creating multiple crescent-shaped spaces between them. The moving scroll rotates around the center of the stationary scroll with a certain eccentric radius, performing a non-rotating rotary translational motion. The outer crescent-shaped spaces continuously move towards the center, gradually pushing the refrigerant towards it. The refrigerant's volume decreases while its pressure increases until it connects to the central exhaust port, at which point the high-pressure refrigerant is discharged from the pump body, completing the compression process. An exhaust check structure needs to be installed on the back of the stationary scroll to allow for both connection and closure between the internal and external parts of the compression chamber, enabling the compressor to continuously perform the compression and exhaust process.

[0003] In a current exhaust check structure, refrigerant is discharged upwards from the exhaust port of the stationary plate. Ideally, the valve plate diameter is slightly smaller than the valve seat inner wall diameter. Therefore, driven by airflow, the valve plate can maintain a horizontal position and move axially up and down along the valve seat inner wall, opening or closing the exhaust port. However, in actual operation, due to unstable refrigerant airflow, the valve plate may tilt during operation, continuously impacting the valve seat inner wall in this tilted state. This can lead to valve plate breakage and damage to the valve seat inner wall, ultimately causing the structure to fail and the compressor to shut down abnormally.

[0004] Therefore, a more optimized exhaust check structure needs to be considered. Summary of the Invention

[0005] The primary objective of this invention is to provide an exhaust check structure that can effectively avoid the problem of component breakage in scroll compressors and improve compressor reliability.

[0006] The second objective of this invention is to provide a stationary disc assembly that can effectively avoid the problem of component breakage in scroll compressors and improve the reliability of the compressor.

[0007] The third objective of this invention is to provide a compressor that can effectively avoid the problem of component breakage in scroll compressors and improve compressor reliability.

[0008] The fourth objective of this invention is to provide a refrigeration device that can effectively avoid the problem of component breakage in scroll compressors and improve the reliability of compressors.

[0009] To achieve the aforementioned first objective, the exhaust check structure provided by the present invention includes a fixed valve seat and a movable valve seat. The fixed valve seat is cylindrical and has an exhaust chamber with a bottom opening. A lateral exhaust hole is provided on the peripheral wall of the fixed valve seat, and a top exhaust hole is provided on the top of the fixed valve seat. Both the lateral exhaust hole and the top exhaust hole communicate with the exhaust chamber. The movable valve seat has a receiving cavity with a bottom opening, and the fixed valve seat is inserted into the receiving cavity. The movable valve seat is axially movable along the fixed valve seat and has a first moving position and a second moving position. When the movable valve seat moves to the first moving position, the peripheral wall of the receiving cavity closes the lateral exhaust hole. When the movable valve seat moves to the second moving position, the peripheral wall of the receiving cavity opens the lateral exhaust hole.

[0010] As can be seen from the above solution, the exhaust check structure of the present invention uses a fixed valve seat and a movable valve seat, with the movable valve seat located on the outside and the fixed valve seat located on the inside. The opening and closing of the exhaust passage is achieved by the movable valve seat on the outside moving along the axial direction of the fixed valve seat, which effectively avoids the problem of exhaust valve plate breakage in traditional exhaust structures and improves the reliability of the compressor.

[0011] In a further embodiment, there are two or more lateral exhaust ports, which are evenly arranged around the circumference of the fixed valve seat.

[0012] Therefore, by setting two or more lateral vent holes, and arranging the lateral vent holes evenly along the circumference of the fixed valve seat, the fixed valve seat can be subjected to uniform force during venting, thereby improving the stability of the fixed valve seat installation.

[0013] In a further embodiment, there are two or more top vent holes, which are evenly arranged on the top of the fixed valve seat.

[0014] Therefore, setting two or more top vent holes and evenly distributing them on the top of the fixed valve seat can make the force on the movable valve seat more uniform and improve the stability of the movable valve seat during movement.

[0015] In a further embodiment, the exhaust check structure also includes at least two columnar guide members, the axial direction of which is arranged along the axial direction of the fixed valve seat; the outer peripheral wall of the movable valve seat is provided with a number of guide holes equal to the number of columnar guide members, and at least two guide holes are evenly arranged along the circumference of the movable valve seat; the columnar guide members are inserted into the corresponding guide holes, and the columnar guide members and the corresponding guide holes are movably engaged.

[0016] Therefore, by setting columnar guides and guide holes, the movable valve seat can be guided during movement, reducing the collision between the movable valve seat and the fixed valve seat and improving the stability of the movable valve seat during movement.

[0017] In a further embodiment, the outer peripheral wall of the movable valve seat is provided with a first ear, the number of which is equal to the number of guide through holes, and the guide through holes are located in the first ear.

[0018] Therefore, by providing a first lug on the outer peripheral wall of the movable valve seat, and placing the guide hole in the first lug, it is easier to align and install.

[0019] In a further embodiment, the columnar guide is a bolt; the outer peripheral wall of the fixed valve seat is provided with a number of fixing through holes equal to the number of bolts, and the bolts are also used to install the fixed valve seat onto the stationary vortex disk through the fixing through holes.

[0020] Therefore, it can be seen that the columnar guide component uses bolts, which facilitates disassembly and assembly. At the same time, the bolts are used to guide the movable valve seat and also to fix the valve seat. The bolts can be reused, simplifying the structural design.

[0021] In a further embodiment, at least two fixing through holes are provided on the outer peripheral wall of the fixed valve seat, and the at least two fixing through holes are evenly arranged on the outer peripheral wall of the fixed valve seat.

[0022] Therefore, it can be seen that the outer peripheral wall of the fixed valve seat is provided with at least two fixed through holes that are evenly arranged, which facilitates the fixed installation of the fixed valve seat and improves the uniformity of the force on the fixed valve seat.

[0023] In a further embodiment, the outer peripheral wall of the fixed valve seat is provided with a second ear, the number of which is equal to the number of fixed through holes, and the fixed through holes are located in the second ear.

[0024] Therefore, by providing a second lug on the outer peripheral wall of the fixed valve seat, and placing the fixed through hole in the second lug, the assembly and disassembly of the fixed valve seat can be facilitated.

[0025] In a further embodiment, an annular pressure edge is provided on the outer peripheral wall of the fixed valve seat, and the fixed through hole is located on the annular pressure edge.

[0026] Therefore, by setting an annular pressure edge on the outer peripheral wall of the fixed valve seat, the fixed through hole is located on the annular pressure edge, which facilitates processing.

[0027] To achieve the second objective of the present invention, the present invention provides a stationary disk assembly, including a stationary vortex disk and an exhaust check structure. The exhaust check structure is installed at the exhaust port of the stationary vortex disk and applies the exhaust check structure described above.

[0028] To achieve the third objective of the present invention, the compressor provided by the present invention includes a static disk assembly, which applies the static disk assembly described above.

[0029] To achieve the fourth objective of the present invention, the present invention provides a refrigeration device including a compressor, wherein the compressor is the compressor described above. Attached Figure Description

[0030] Figure 1 This is a structural diagram of the first embodiment of the static disk assembly of the present invention.

[0031] Figure 2 This is a structural cross-sectional view of the first embodiment of the static disk assembly of the present invention.

[0032] Figure 3 This is an exploded view of the structure of the first embodiment of the static disk assembly of the present invention.

[0033] Figure 4 This is a structural cross-sectional view of the first embodiment of the static disk assembly of the present invention in an exploded state.

[0034] Figure 5 This is a structural diagram of the columnar guide member in the first embodiment of the static disk assembly of the present invention.

[0035] Figure 6 This is a structural diagram of the movable valve seat in the first embodiment of the static disc assembly of the present invention when it moves to the first moving position.

[0036] Figure 7 This is a structural diagram of the movable valve seat in the first embodiment of the static disc assembly of the present invention when it moves to the second moving position.

[0037] Figure 8 This is an exploded view of the exhaust check structure in the second embodiment of the static disk assembly of the present invention.

[0038] Figure 9 This is an exploded view of the exhaust check structure in the third embodiment of the static disk assembly of the present invention.

[0039] Figure 10 This is a structural diagram of the fourth embodiment of the static disk assembly of the present invention.

[0040] Figure 11 This is an exploded view of the exhaust check structure in the fourth embodiment of the static disk assembly of the present invention.

[0041] Figure 12 This is a structural diagram of the fixed valve seat in the fifth embodiment of the static disc assembly of the present invention.

[0042] Figure 13 This is a structural cross-sectional view of the fixed valve seat in the fifth embodiment of the static disc assembly of the present invention.

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0044] First embodiment of the static disk assembly:

[0045] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the stationary disk assembly includes a stationary vortex disk 1 and an exhaust check structure 2, with the exhaust check structure 2 installed at the exhaust port 11 of the stationary vortex disk 1.

[0046] In this embodiment, the exhaust check structure 2 includes a fixed valve seat 21 and a movable valve seat 22. The fixed valve seat 21 is cylindrical and has an exhaust chamber 211 with a bottom opening. Lateral exhaust holes 212 are provided on the peripheral wall of the fixed valve seat 21, and a top exhaust hole 213 is provided on the top of the fixed valve seat 21. Both the lateral exhaust holes 212 and the top exhaust hole 213 communicate with the exhaust chamber 211. The movable valve seat 22 has a receiving cavity 221 with a bottom opening, and the fixed valve seat 21 is inserted into the receiving cavity 221. There are two or more lateral exhaust holes 212, which are evenly arranged along the circumference of the fixed valve seat 21. By providing two or more lateral exhaust holes 212, and ensuring that the lateral exhaust holes 212 are evenly arranged along the circumference of the fixed valve seat 21, the fixed valve seat 21 can be subjected to uniform force during exhaust, improving the stability of the fixed valve seat 21 installation. The top vent 213 is located in the middle area of ​​the top of the fixed valve seat 21. When venting, it can provide an upward lifting force to the movable valve seat 22. At the same time, when the movable valve seat 22 descends, it can accelerate the venting of the receiving cavity 221, so that the movable valve seat 22 descends quickly.

[0047] The exhaust check structure 2 also includes at least two columnar guide members 23, whose axial direction is along the axial direction of the fixed valve seat on the stationary scroll plate 1. The outer peripheral wall of the movable valve seat 22 is provided with a number of guide holes 223 equal to the number of columnar guide members 23, and at least two guide holes 223 are evenly arranged along the circumference of the movable valve seat 22. In this embodiment, there are two columnar guide members 23. The columnar guide members 23 are inserted into the corresponding guide holes 223, and the columnar guide members 23 and the corresponding guide holes 223 are movably engaged. By providing the columnar guide members 23 and the guide holes 223, the movable valve seat 22 can be guided during movement, reducing collisions between the movable valve seat 22 and the fixed valve seat 21, and improving the stability of the movable valve seat 22 during movement.

[0048] In this embodiment, the outer peripheral wall of the movable valve seat 22 is provided with first ears 222 in a number equal to the number of guide holes 223, and the guide holes 223 are located in the first ears 222. By providing first ears 222 on the outer peripheral wall of the movable valve seat 22, and making the guide holes 223 located in the first ears 222, it is easy to align and install.

[0049] In this embodiment, the columnar guide member 23 is a bolt. The outer peripheral wall of the fixed valve seat 21 has a number of fixing through holes 215 equal to the number of bolts. The bolts are also used to install the fixed valve seat 21 onto the stationary scroll plate 1 through the fixing through holes 215. The use of bolts for the columnar guide member 23 facilitates disassembly and assembly. Simultaneously, the bolts guide the movable valve seat 22 and also fix the valve seat 21, allowing for the reuse of bolts and simplifying the structural design.

[0050] The outer peripheral wall of the fixed valve seat 21 is also provided with second ears 214 in number equal to the number of fixed through holes 215, and the fixed through holes 215 are located in the second ears 214. By providing second ears 214 on the outer peripheral wall of the fixed valve seat 21, and making the fixed through holes 215 located in the second ears 214, the fixed valve seat 21 can be easily disassembled and assembled.

[0051] In this embodiment, see Figure 5 The columnar guide 23 includes a threaded portion 231, a guide portion 232, and a nut portion 233. The diameter of the threaded portion 231 is smaller than the diameter of the guide portion 232, and the diameter of the guide portion 232 is smaller than the diameter of the nut portion 233. The threaded portion 231 passes through the fixing through hole 215 and engages with the threaded hole 12 of the stationary scroll plate 1. Since the diameter of the guide portion 232 is larger than the diameter of the threaded portion 231, the guide portion 232 can press against the second ear portion 214, thereby fixing the fixed valve seat 21 onto the stationary scroll plate 1. The guide portion 232 cooperates with the guide through hole 223, and the first ear portion 222 moves within the range of the guide portion 232. Since the diameter of the nut portion 233 is larger than the diameter of the guide portion 232, it can limit the first ear portion 222, preventing the first ear portion 222 from falling off the columnar guide 23.

[0052] In this embodiment, the movable valve seat 22 is axially movable along the fixed valve seat, and the movable valve seat 22 has a first moving position and a second moving position. When the movable valve seat 22 moves to the first moving position, the peripheral wall of the receiving cavity 221 closes the lateral exhaust port 212, such as... Figure 6 As shown. When the movable valve seat 22 moves to the second moving position, the lateral vent 212 opens on the peripheral wall of the receiving cavity 221, as shown. Figure 7 As shown.

[0053] In this embodiment, when the high-pressure refrigerant is discharged from the exhaust port 111 of the stationary vortex disk 1, the exhaust check structure 2 is in its initial state when the high-pressure refrigerant is about to begin discharging, i.e., as shown in the figure. Figure 6In the indicated state, the movable valve seat 22 is located at the lowest point of its movable stroke under the influence of gravity. At this time, the side wall of the movable valve seat 22 can completely block the lateral vent 212, preventing the refrigerant from communicating between the inside and outside of the stationary scroll plate 1. During the refrigerant discharge process, the high-pressure refrigerant passes through the vent 111 and the top vent 213 successively, finally impacting the top of the movable valve seat 22, thereby causing the movable valve seat 22 to move upward along the columnar guide 23, eventually reaching the... Figure 7 In this process, the side wall of the movable valve seat 22 cannot block the lateral exhaust port 212 of the fixed valve seat 21. Under the action of pressure difference, the high-pressure refrigerant inside the stationary scroll 1 is discharged from the inside of the stationary scroll 1 through the exhaust check structure 2 to the outside of the stationary scroll 1. When the high-pressure refrigerant stops discharging, the movable valve seat 22 moves downward under the action of gravity, returning to its original state. Figure 6 In this state, the refrigerant communication channels between the inside and outside of the static vortex disk 1 are closed.

[0054] As can be seen from the above, the exhaust check structure 2 of the present invention uses a fixed valve seat 21 and a movable valve seat 22. The movable valve seat 22 is located on the outside and the fixed valve seat 21 is located on the inside. The opening and closing of the exhaust passage is realized by the movable valve seat 22 moving along the axial direction of the fixed valve seat, which effectively avoids the problem of exhaust valve plate breakage in the traditional exhaust structure and improves the reliability of the compressor.

[0055] Second embodiment of the static disk assembly:

[0056] The difference between the static disk assembly in this embodiment and the static disk assembly in the first embodiment lies only in the number of the first ear 222, the second ear 214, and the columnar guide 23. The reference numerals are the same as those in the first embodiment.

[0057] In this embodiment, see Figure 8 The number of the first ear 222, the second ear 214, and the columnar guide 23 are all three. Of course, the number of the first ear 222, the second ear 214, and the columnar guide 23 can also be set as needed.

[0058] Third embodiment of the static disk assembly:

[0059] The only difference between the static disk assembly in this embodiment and the static disk assembly in the second embodiment is the number of top vent holes 213, and the reference numerals are the same as those in the second embodiment.

[0060] In this embodiment, see Figure 9 The number of top vent holes 213 is two or more, and the two or more top vent holes 213 are evenly arranged on the top of the fixed valve seat 21. Providing two or more top vent holes 213, and evenly arranging them on the top of the fixed valve seat 21, can make the force on the movable valve seat 22 more even, improving the stability of the movable valve seat 22 during movement. In this embodiment, the number of top vent holes 213 is four.

[0061] Fourth embodiment of the static disk assembly:

[0062] The difference between the static disk assembly in this embodiment and the static disk assembly in the first embodiment lies only in the connection method between the first ear 222, the second ear 214 and the static vortex disk 1. The reference numerals are the same as those in the first embodiment.

[0063] In this embodiment, see Figure 10 and Figure 11 The first ear 222 is connected to the stationary scroll plate 1 via a columnar guide 23. The second ear 214 is connected to the stationary scroll plate 1 via a bolt 24. By connecting the first ear 222 and the second ear 214 via the columnar guide 23 and the bolt 24 respectively, the impact force experienced by the fixed valve seat 21 and the movable valve seat 22 during exhaust can be transmitted to the columnar guide 23 and the bolt 24 respectively, thus improving the reliability of the exhaust check structure 2 and preventing structural failure.

[0064] Fifth embodiment of the static disk assembly:

[0065] The difference between the static plate assembly in this embodiment and the static plate assembly in the first embodiment lies only in the setting method of the fixing through hole 215 of the fixing valve seat 2. The reference numerals are the same as those in the first embodiment.

[0066] In this embodiment, see Figure 12 and Figure 13 An annular pressure edge 216 is also provided on the outer peripheral wall of the fixed valve seat 21, and the fixed through hole 215 is located on the annular pressure edge 216. By providing an annular pressure edge 216 on the outer peripheral wall of the fixed valve seat 21, and making the fixed through hole 215 located on the annular pressure edge 216, it is easier to process.

[0067] Compressor Example:

[0068] In this embodiment, the compressor includes a static disk assembly, which is the same static disk assembly used in the above embodiments.

[0069] Refrigeration equipment example:

[0070] In this embodiment, the refrigeration equipment includes a compressor, which is the compressor described in the above embodiment. The refrigeration equipment includes devices that require a compressor, such as air conditioners and refrigerators.

[0071] It should be noted that the above are only preferred embodiments of the present invention, but the design concept of the invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept also fall within the protection scope of the present invention.

Claims

1. An exhaust check structure, characterized in that: Includes fixed valve seats and movable valve seats; The fixed valve seat is cylindrical in shape, and has an exhaust chamber with a bottom opening. The fixed valve seat has a lateral exhaust hole on its peripheral wall and a top exhaust hole on its top. Both the lateral exhaust hole and the top exhaust hole are connected to the exhaust chamber. The movable valve seat is provided with a receiving cavity with a bottom opening, and the fixed valve seat is inserted into the receiving cavity; The movable valve seat is axially movable along the fixed valve seat, and the movable valve seat has a first moving position and a second moving position; When the movable valve seat moves to the first moving position, the peripheral wall of the receiving cavity closes the lateral exhaust port; When the movable valve seat moves to the second moving position, the lateral exhaust port is opened by the peripheral wall of the receiving cavity.

2. The exhaust check structure according to claim 1, characterized in that: The number of lateral exhaust holes is two or more, and the two or more lateral exhaust holes are evenly arranged along the circumference of the fixed valve seat.

3. The exhaust check structure according to claim 2, characterized in that: The number of top vent holes is two or more, and the two or more top vent holes are evenly arranged on the top of the fixed valve seat.

4. The exhaust check structure according to any one of claims 1 to 3, characterized in that: The exhaust check structure also includes at least two columnar guide members, the axial direction of which is arranged along the axial direction of the fixed valve seat; The outer peripheral wall of the movable valve seat is provided with guide holes equal in number to the columnar guide members, and at least two of the guide holes are evenly arranged along the circumference of the movable valve seat. The columnar guide is inserted into the corresponding guide through hole, and the columnar guide is movably engaged with the corresponding guide through hole.

5. The exhaust check structure according to claim 4, characterized in that: The outer peripheral wall of the movable valve seat is provided with a first ear portion equal in number to the guide through holes, and the guide through holes are located in the first ear portion.

6. The exhaust check structure according to claim 4, characterized in that: The columnar guide component is a bolt; The outer peripheral wall of the fixed valve seat is provided with a number of fixing through holes equal to the number of bolts. The bolts are also used to install the fixed valve seat onto the stationary vortex disk through the fixing through holes.

7. The exhaust check structure according to any one of claims 1 to 3, characterized in that: The outer peripheral wall of the fixed valve seat is provided with at least two fixed through holes, and the at least two fixed through holes are evenly arranged on the outer peripheral wall of the fixed valve seat.

8. The exhaust check structure according to claim 7, characterized in that: The outer peripheral wall of the fixed valve seat is also provided with a second ear portion equal in number to the fixed through hole, and the fixed through hole is located in the second ear portion.

9. The exhaust check structure according to claim 7, characterized in that: The outer peripheral wall of the fixed valve seat is also provided with an annular pressure edge, and the fixed through hole is located on the annular pressure edge.

10. A stationary disk assembly, comprising a stationary scroll disk and an exhaust check structure, wherein the exhaust check structure is installed at the exhaust port of the stationary scroll disk, characterized in that: The exhaust check structure is the exhaust check structure described in any one of claims 1 to 9.

11. A compressor, comprising a stationary disc assembly, characterized in that: The static disk assembly uses the static disk assembly of claim 10.

12. A refrigeration device, comprising a compressor, characterized in that: The compressor described herein is the compressor of claim 11.

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