Static disc assembly, compressor and refrigeration appliance

Abstract

The utility model provides a kind of static disc assembly, compressor and refrigeration equipment, the static disc assembly includes static scroll and exhaust check structure, exhaust check structure is arranged at the exhaust port of static scroll;Exhaust check structure includes check valve baffle, baffle fastener and check valve piece;The outside wall of static scroll is formed mounting seat at exhaust port, mounting seat is provided with baffle mounting hole, check valve baffle is provided with the baffle through hole corresponding with baffle mounting hole, baffle fastener passes through baffle through hole and is connected with baffle mounting hole;Mounting seat and check valve baffle form valve piece accommodating site cooperation, check valve piece can be installed in valve piece accommodating site, check valve piece is used to close or open exhaust port.The static disc assembly of the utility model can avoid the problem of increasing the thickness of the substrate due to machining the threaded hole on the center side of the static disc, effectively reduce the weight and enhance the strength of the scroll tooth head position.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically to a static plate assembly, a compressor using the static plate assembly, and refrigeration equipment using the compressor. Background Technology

[0002] Currently, most large vertical compressors adopt an iron-cased scroll compressor structure, whose internal pump body typically consists of an iron brake disc and a stationary disc. To ensure the reliability of installing the check valve seat on the stationary disc, a threaded hole needs to be machined at the center base plate, ensuring sufficient thread depth. This necessitates a relatively thick stationary disc base plate, increasing its height and weight, and consequently affecting the overall height and weight of the equipment. If other materials are used (such as aluminum alloy), due to its lower hardness and higher coefficient of thermal expansion compared to iron, national standards require machining a longer thread length to ensure sufficient screw insertion length.

[0003] However, in certain special applications (such as aerospace), compressors may face weight restrictions or be constrained by production costs. In such cases, if the stationary plate cannot be guaranteed to have sufficient thickness, the strength of the threaded hole location will be correspondingly reduced. Moreover, if the threaded hole is located in the head region of the scroll teeth, it may also increase the risk of failures such as tooth breakage.

[0004] Therefore, a more optimized exhaust check structure needs to be considered. Utility Model Content

[0005] The primary objective of this invention is to provide a static disk assembly that avoids the problem of increased substrate thickness caused by machining threaded holes on the center side of the static disk, effectively reducing weight and enhancing the positional strength of the vortex tooth head.

[0006] The second objective of this invention is to provide a compressor that can avoid the problem of increased substrate thickness caused by machining threaded holes on the center side of the stationary disc, effectively reduce weight, and enhance the positional strength of the scroll gear head.

[0007] The third objective of this invention is to provide a refrigeration device that can avoid the problem of increased substrate thickness caused by machining threaded holes on the center side of the stationary disk, effectively reduce weight, and enhance the positional strength of the vortex tooth head.

[0008] To achieve the aforementioned first objective, the static disk assembly provided by this utility model includes a static vortex disk and an exhaust check structure. The exhaust check structure is disposed at the exhaust port of the static vortex disk. The exhaust check structure includes a check valve baffle, a baffle fastener, and a check valve plate. A mounting seat is formed by a protrusion on the outer wall of the static vortex disk at the exhaust port. The mounting seat is provided with a baffle mounting hole. The check valve baffle is provided with a baffle through hole corresponding to the baffle mounting hole. The baffle fastener passes through the baffle through hole and connects to the baffle mounting hole. The mounting seat and the check valve baffle cooperate to form a valve plate receiving position. The check valve plate is movably installed in the valve plate receiving position, and the check valve plate closes or opens the exhaust port.

[0009] As can be seen from the above solution, the stationary disk assembly of this utility model forms a mounting seat by protruding on the outer wall of the exhaust port of the stationary vortex disk, and sets a baffle mounting hole on the mounting seat for installing a check valve baffle. This avoids directly setting the baffle mounting hole on the outer wall of the stationary vortex disk, and avoids the problem of increasing the substrate thickness due to machining threaded holes on the center side of the stationary disk, thus effectively reducing weight. At the same time, the mounting seat formed by protruding on the outer wall of the exhaust port can further enhance the strength of the vortex tooth head position.

[0010] In a further embodiment, the mounting base includes a first fixed base and a second fixed base, which are arranged opposite to each other and along the circumference of the exhaust port; the baffle mounting hole includes a first baffle mounting hole and a second baffle mounting hole, with the first baffle mounting hole located on the first fixed base and the second baffle mounting hole located on the second fixed base.

[0011] Therefore, by using the first fixing seat and the second fixing seat, and correspondingly providing the first baffle mounting hole and the second baffle mounting hole, the installation structure can be simplified.

[0012] In a further embodiment, a first limiting surface is provided on the side of the first fixed seat facing the exhaust port, and a second limiting surface is provided on the side of the second fixed seat facing the exhaust port. Both the first limiting surface and the second limiting surface are matched with the check valve plate to limit the movement of the check valve plate in the direction of closing or opening the exhaust port.

[0013] Therefore, the first fixed seat and the second fixed seat are configured with a first limiting surface and a second limiting surface to cooperate with the check valve plate for limiting, which can prevent the check valve plate from dislodging from the valve plate receiving position during the movement.

[0014] In a further design, the baffle mounting holes are positioned to avoid the vortex tooth head.

[0015] Therefore, the baffle mounting holes avoid the vortex teeth, which optimizes the arrangement of the baffle mounting holes and ensures the strength of the vortex teeth in the stationary vortex disk.

[0016] In a further embodiment, the distance between the bottom end of the baffle mounting hole and the inner wall surface of the compression chamber of the stationary vortex disk where the exhaust port is located is greater than the preset minimum safety distance.

[0017] Therefore, the distance between the bottom of the baffle mounting hole and the inner wall of the compression chamber of the stationary vortex disk with the exhaust port is greater than the preset minimum safety distance, which can ensure the thickness of the base plate of the stationary vortex disk and improve safety.

[0018] In a further embodiment, the exhaust check structure also includes a gasket, which is installed at the exhaust port and fits against the outer wall of the stationary vortex at the exhaust port; at least a portion of the gasket is located within the valve plate receiving position; the portion of the gasket located within the valve plate receiving position is provided with a vent hole, which communicates with the exhaust port.

[0019] Therefore, by setting a gasket, the check valve plate can be prevented from directly striking the stationary vortex plate during operation, which would damage or deform the stationary vortex plate and reduce its safety.

[0020] In a further embodiment, the gasket is installed at the vent via gasket fasteners.

[0021] Therefore, it can be seen that installing gaskets with gasket fasteners facilitates the installation and removal of gaskets.

[0022] In a further embodiment, a blind hole is provided on the outer wall of the static vortex disk at the exhaust port, and the gasket fastener is connected to the blind hole so that the gasket is installed at the exhaust port.

[0023] Therefore, since the gasket is stationary on the stationary scroll during the operation of the compressor, the impact force on the stationary scroll is relatively small. Therefore, the gasket fastener can usually be fixed with small-sized fasteners, and the corresponding blind hole is also relatively small. Therefore, blind holes can be provided on the outer wall at the exhaust port so that the gasket can be installed at the exhaust port.

[0024] In a further design, the blind hole is positioned based on the angle between the vortex teeth in the stationary vortex disk and the exhaust disengagement point to avoid the vortex teeth.

[0025] Therefore, the blind hole is positioned to avoid the vortex tooth head, which optimizes the blind hole's position and ensures the strength of the vortex tooth head position in the stationary vortex disk.

[0026] In a further embodiment, the blind hole is positioned to be exposed on the outer periphery of the check valve baffle in the projection direction of the check valve baffle toward the exhaust port.

[0027] Therefore, the blind hole is located on the outer periphery of the check valve baffle, which facilitates the installation and removal of the gasket fasteners.

[0028] In a further embodiment, the distance between the bottom end of the blind hole and the inner wall of the compression chamber of the stationary vortex disk, where the exhaust port is located, is greater than the preset minimum safety distance.

[0029] Therefore, the distance between the bottom of the blind hole and the inner wall of the compression chamber of the stationary vortex disk with the exhaust port is greater than the preset minimum safety distance, which can ensure the strength of the substrate of the stationary vortex disk.

[0030] In a further embodiment, the check valve baffle is provided with a through hole at the position where the valve plate is accommodated.

[0031] Therefore, it can be seen that by setting a through hole in the check valve baffle, the check valve plate can be easily lowered back to the exhaust port.

[0032] In a further embodiment, the baffle fasteners are screws or bolts; the baffle mounting holes are threaded holes.

[0033] Therefore, the check valve baffle can be easily disassembled and assembled by using screws or bolts in conjunction with the screw holes.

[0034] To achieve the second objective of this utility model, the compressor provided by this utility model includes a static plate assembly, which applies the aforementioned static plate assembly.

[0035] To achieve the third objective of this utility model, the refrigeration equipment provided by this utility model includes a compressor, and the compressor uses the above-mentioned compressor. Attached Figure Description

[0036] Figure 1 This is a structural diagram of an embodiment of the static disk assembly of this utility model.

[0037] Figure 2 This is an exploded view of the structure of one embodiment of the static disk assembly of this utility model.

[0038] Figure 3 This is an exploded view of the structure of another embodiment of the static disk component of this utility model.

[0039] Figure 4 This is a structural diagram of the check valve baffle in an embodiment of the static disc assembly of this utility model.

[0040] Figure 5 This is a structural diagram showing the inside of the compression chamber of an embodiment of the static disk assembly of this utility model.

[0041] Figure 6 This is a structural cross-sectional view of an embodiment of the static disk assembly of this utility model.

[0042] Figure 7 This is a structural diagram of the gasket in an embodiment of the static disk assembly of this utility model.

[0043] Figure 8This is a structural cross-sectional view of an embodiment of the static disk assembly of this utility model.

[0044] Figure 9 This is a top view of the positional structure of the check valve baffle and gasket in an embodiment of the static disc assembly of this utility model.

[0045] Figure 10 This is a structural diagram of an embodiment of the compressor of this utility model.

[0046] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0047] Example of static disk assembly:

[0048] like Figure 1 , Figure 2 and Figure 3 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 disposed at the exhaust port 11 of the stationary vortex disk 1.

[0049] The exhaust check structure 2 includes a check valve baffle 21, a baffle fastener 22, and a check valve plate 23. The stationary vortex disk 1 has a protrusion on its outer wall at the exhaust port 11 forming a mounting base 12. The mounting base 12 is provided with a baffle mounting hole 13. (See attached image) Figure 4 The check valve baffle 21 is provided with a baffle through hole 211 corresponding to the baffle mounting hole 13. The baffle fastener 22 passes through the baffle through hole 211 and connects to the baffle mounting hole 13. The mounting base 12 cooperates with the check valve baffle 21 to form a valve plate receiving position. The check valve plate 23 is movably installed in the valve plate receiving position and is used to close or open the exhaust port 11. In this embodiment, the check valve baffle 21 is provided with a through hole 212 at the position of the valve plate receiving position. Providing a through hole 212 in the check valve baffle 21 facilitates the check valve plate 23 to fall back to the exhaust port 11. Preferably, the baffle fastener 22 is a screw or bolt, and the baffle mounting hole 13 is a screw hole. The screw or bolt and the screw hole cooperate to facilitate the disassembly and assembly of the check valve baffle 21. Optionally, the baffle fastener 22 is a rivet, and the rivet is interference-fitted with the baffle mounting hole 13.

[0050] In this embodiment, the mounting base 12 includes a first fixing base 121 and a second fixing base 122, which are arranged opposite to each other and along the circumference of the exhaust port 11. The baffle mounting hole 13 includes a first baffle mounting hole 131 and a second baffle mounting hole 132, with the first baffle mounting hole 131 located on the first fixing base 121 and the second baffle mounting hole 132 located on the second fixing base 122. Correspondingly, there are two baffle fasteners 22 and two baffle through holes 211, which are respectively corresponding to the first baffle mounting hole 131 and the second baffle mounting hole 132. By using the first fixing base 121 and the second fixing base 122, and correspondingly providing the first baffle mounting hole 131 and the second baffle mounting hole 132, the installation structure can be simplified.

[0051] In this embodiment, the first fixed seat 121 has a first limiting surface (not shown) on the side facing the exhaust port 11, and the second fixed seat 122 has a second limiting surface 1221 on the side facing the exhaust port 11. Both the first limiting surface and the second limiting surface 1221 are engaged with the check valve plate 23 to limit its movement, allowing the check valve plate 23 to move in the direction of closing or opening the exhaust port 11. By providing the first limiting surface and the second limiting surface 1221, the first fixed seat 121 and the second fixed seat 122 can engage with the check valve plate 23 to prevent the check valve plate 23 from disengaging from its receiving position during movement. The shapes of the first limiting surface and the second limiting surface 1221 can be correspondingly set according to the outer peripheral shape of the check valve plate 23. In this embodiment, the check valve plate 23 is circular, and both the first limiting surface and the second limiting surface 1221 are arc surfaces. Furthermore, the first limiting surface and the second limiting surface 1221 can be treated for wear resistance. Since the check valve plate 23 will be in long-term contact with the first limiting surface and the second limiting surface 1221 during the movement, the first limiting surface and the second limiting surface 1221 can be surface treated to increase wear resistance. For example, the first limiting surface and the second limiting surface 1221 can be phosphated, anodized, or nickel-plated.

[0052] See Figure 5 The baffle mounting hole 13 is positioned to avoid the vortex tooth head 17. Specifically, with the exhaust port 11 as the center, the angle from the vortex tooth head 14 to the exhaust disengagement point A is θ, and the range of angle θ is defined as the vortex tooth head region B. If θ < 180°, it must be ensured that within the range of θ, the baffle mounting hole 13 does not enter the vortex tooth head region B. If θ > 180°, it must be ensured that within the range of 180°, the baffle mounting hole 13 does not enter the vortex tooth head region B. By avoiding the vortex tooth head 17, the arrangement of the baffle mounting hole 13 can be optimized, ensuring the strength of the vortex tooth head region B in the stationary vortex disk 1.

[0053] In this embodiment, see Figure 6The distance S2 between the bottom end of the baffle mounting hole 13 and the inner wall surface 16 of the compression chamber 15 of the stationary vortex disk 1, where the exhaust port 11 is located, is greater than a preset minimum safety distance. This preset minimum safety distance can be obtained through simulation based on operating conditions. Setting the distance S2 between the bottom end of the baffle mounting hole 13 and the inner wall surface 16 to be greater than the preset minimum safety distance ensures the thickness of the substrate of the stationary vortex disk 1 and improves safety.

[0054] Depend on Figure 3 It is understood that the exhaust check structure 2 also includes a gasket 24, which is installed at the exhaust port 11 and fits against the outer wall of the stationary vortex disk 1 at the exhaust port 11. At least a portion of the gasket 24 is located within the valve plate receiving position. See also Figure 7 The portion of the gasket 24 located within the valve plate receiving position is provided with a vent hole 241, which communicates with the exhaust port 11. By providing the gasket 24, the check valve plate 23 can be prevented from directly striking the stationary volute 1 during operation, thus avoiding damage or deformation to the stationary volute 1 and reducing its safety.

[0055] In this embodiment, the gasket 24 is installed at the exhaust port 11 via a gasket fastener 25. Installing the gasket 24 via the gasket fastener 25 facilitates the installation and removal of the gasket 24. The stationary scroll plate 1 has a blind hole 14 on its outer wall at the exhaust port 11. The gasket fastener 25 connects to the blind hole 14, allowing the gasket 24 to be installed at the exhaust port 11. Preferably, the gasket 24 has a notched waist hole 242, through which the gasket fastener 25 connects to the blind hole 14. Preferably, the gasket fastener 25 is a screw or bolt, and the blind hole 14 is a screw hole. Optionally, the gasket fastener 25 is a rivet, with the rivet having an interference fit with the blind hole 14. Since the gasket 24 is stationary on the stationary scroll 1 during the operation of the compressor, the impact force on the stationary scroll 1 is relatively small. Therefore, the gasket fastener 25 can usually be fixed with a small-sized fastener, and the corresponding screw hole is also relatively small. Therefore, a blind hole 14 can be provided on the outer wall of the exhaust port 11 so that the gasket 24 can be installed at the exhaust port 11.

[0056] In this embodiment, by Figure 5 It can be seen that the blind hole 14 is positioned to avoid the vortex tooth 17. The position of the blind hole 14 is based on the angle between the vortex tooth 17 in the stationary vortex disk 1 and the exhaust disengagement point A to avoid the vortex tooth 17, thereby optimizing the position of the blind hole 14 and ensuring the strength of the position of the vortex tooth 17 in the stationary vortex disk 1.

[0057] See Figure 8The distance S3 between the bottom end of the blind hole 14 and the inner wall surface 16 of the compression chamber 15 of the stationary vortex disk 1, where the exhaust port 11 is located, is greater than a preset minimum safety distance. Setting the distance S3 between the bottom end of the blind hole 14 and the inner wall surface 16 to be greater than the preset minimum safety distance ensures the strength of the substrate of the stationary vortex disk 1.

[0058] In this embodiment, the blind hole 14 is positioned outside the outer periphery of the check valve baffle 21 in the projection direction of the check valve baffle 21 toward the exhaust port 11. The position of the blind hole 14 exposed outside the outer periphery of the check valve baffle 21 facilitates the installation and removal of the gasket fastener 25.

[0059] The shape of the check valve baffle 21 and the gasket 24 can be set as needed. In this embodiment, see [reference needed]. Figure 9 Both the check valve baffle 21 and the check valve baffle 24 are prismatic in shape. In the projection direction of the check valve baffle 21 toward the exhaust port 11, the longest diagonal of the check valve baffle 21 and the longest diagonal of the check valve baffle 24 are perpendicular to each other.

[0060] As can be seen from the above, the stationary disk assembly of this utility model forms a mounting base 12 by protruding on the outer wall of the exhaust port 11 of the stationary vortex disk 1, and provides a baffle mounting hole 13 on the mounting base 12 for installing the check valve baffle 21. This avoids the need to provide a baffle mounting hole 13 on the outer wall of the stationary vortex disk 1, and avoids the problem of increased substrate thickness caused by machining threaded holes on the center side of the stationary disk, thus effectively reducing weight. At the same time, the protrusion of the mounting base 12 on the outer wall of the exhaust port 11 can further enhance the strength of the vortex tooth head 17 position.

[0061] Compressor Example:

[0062] In this embodiment, see Figure 10 The compressor includes a stationary disk assembly 20, which uses the stationary disk assembly described in the above embodiments.

[0063] Refrigeration equipment example:

[0064] 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.

[0065] It should be noted that the above are only preferred embodiments of the present utility model, but the design concept of the utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall also fall within the protection scope of the present utility model.

Claims

1. A stationary disk assembly, comprising a stationary scroll disk and an exhaust check structure, wherein the exhaust check structure is disposed at the exhaust port of the stationary scroll disk; characterized in that: The exhaust check structure includes a check valve baffle, baffle fasteners, and a check valve plate; The static vortex disk protrudes from the outer wall of the exhaust port to form a mounting seat. The mounting seat is provided with a baffle mounting hole. The check valve baffle is provided with a baffle through hole corresponding to the baffle mounting hole. The baffle fastener passes through the baffle through hole and is connected to the baffle mounting hole. The mounting base cooperates with the check valve baffle to form a valve plate receiving position. The check valve plate is movably installed in the valve plate receiving position. The check valve plate is used to close or open the exhaust port.

2. The static disk assembly according to claim 1, characterized in that: The mounting base includes a first fixing base and a second fixing base, which are arranged opposite to each other and along the circumference of the exhaust port; The baffle mounting holes include a first baffle mounting hole and a second baffle mounting hole. The first baffle mounting hole is disposed on the first fixed base, and the second baffle mounting hole is disposed on the second fixed base.

3. The static disk assembly according to claim 2, characterized in that: The first fixed seat has a first limiting surface on the side facing the exhaust port, and the second fixed seat has a second limiting surface on the side facing the exhaust port. Both the first limiting surface and the second limiting surface are engaged with the check valve plate to limit the movement of the check valve plate in the direction of closing or opening the exhaust port.

4. The static disk assembly according to claim 1, characterized in that: The baffle mounting holes are positioned to avoid the vortex tooth head.

5. The static disk assembly according to claim 1, characterized in that: The distance between the bottom end of the baffle mounting hole and the inner wall surface of the compression chamber of the static vortex disk where the exhaust port is located is greater than the preset minimum safety distance.

6. The static disk assembly according to any one of claims 1 to 3, characterized in that: The exhaust check structure also includes a gasket, which is installed at the exhaust port and is in contact with the outer wall of the stationary vortex disk at the exhaust port; At least a portion of the gasket is located within the valve plate receiving position; The portion of the gasket located within the valve plate receiving position is provided with a vent hole, which communicates with the exhaust port.

7. The static disk assembly according to claim 6, characterized in that: The gasket is installed at the vent via gasket fasteners.

8. The static disk assembly according to claim 7, characterized in that: The static vortex disk has a blind hole on its outer side wall at the exhaust port, and the gasket fastener is connected to the blind hole so that the gasket is installed at the exhaust port.

9. The static disk assembly according to claim 8, characterized in that: The blind hole is positioned to avoid the vortex tooth head.

10. The static disk assembly according to claim 8, characterized in that: In the projection direction of the check valve baffle toward the exhaust port, the blind hole is located outside the outer periphery of the check valve baffle.

11. The static disk assembly according to claim 8, characterized in that: The distance between the bottom end of the blind hole and the inner wall of the compression chamber of the static vortex disk where the exhaust port is located is greater than a preset minimum safety distance.

12. The static disk assembly according to any one of claims 1 to 5, characterized in that: The check valve baffle is provided with a through hole at the position where the valve plate is received.

13. The static disk assembly according to any one of claims 1 to 5, characterized in that: The baffle fastener is a screw or bolt; the baffle mounting hole is a screw hole.

14. A compressor, comprising a stationary disc assembly, characterized in that: The static disk assembly uses the static disk assembly described in any one of claims 1 to 13.

15. A refrigeration device, comprising a compressor, characterized in that: The compressor is the compressor described in claim 14.

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