Exhaust valve plate assembly and compressor

Abstract

The utility model provides a kind of exhaust valve plate assembly and compressor, a kind of exhaust valve plate assembly includes the valve piece and elastic sheet of laminated arrangement;Valve piece's first end is connected with the first end of elastic sheet, the second end of valve piece covers or opens exhaust hole, the second end of elastic sheet extends to the second end of valve piece, and the second end of elastic sheet is provided with bending section, and bending section is variably arranged;When the second end of valve piece opens exhaust hole, the second end of valve piece is in contact with bending section, and bending section is deformed.In the utility model, it is linear contact between bending section and valve piece, and due to the resilience of elastic member and the small contact area between valve piece and elastic member, the buffering effect of bending section can significantly reduce the valve piece to knock static disc noise.

Description

Technical Field

[0001] This utility model belongs to the field of compressor technology, specifically relating to an exhaust valve plate assembly and a compressor. Background Technology

[0002] A scroll compressor mainly consists of core components such as a moving scroll plate, a stationary scroll plate, a crankshaft, a motor, and a support frame. During operation, the working cycle of a scroll compressor with a high-pressure chamber structure can be divided into three stages: intake, compression, and exhaust. Specifically, the moving scroll plate rotates around the center of the base circle of the stationary scroll plate profile, thus forming multiple closed crescent-shaped compression chambers between the moving and stationary scroll plates. As the moving scroll plate continues to move, the volume of these compression chambers gradually decreases, the gas pressure inside the chambers increases accordingly, and finally, the high-pressure gas is discharged through the exhaust chamber.

[0003] During gas compression, to ensure the gas pressure within the compression chamber remains within a certain range and to prevent damage to the equipment due to reverse rotation of the moving scroll plate, a pressure relief hole is typically opened on the stationary scroll plate to connect the compression chamber to the high-pressure chamber of the housing, separated by a pressure relief valve. This design allows for the effective release of overpressured gas. Furthermore, to prevent damage to the pressure relief valve due to excessive deformation, a limiter is installed above it to restrict its deformation angle and ensure operational safety. However, in traditional pressure relief valve designs, the pressure relief valve bends upward under the pressure of high-pressure gas, directly colliding with the limiter. Upon falling back, the valve directly strikes the surface of the stationary plate, resulting in significant noise and impacting equipment reliability. Utility Model Content

[0004] This utility model provides an exhaust valve plate assembly and a compressor, which can solve the technical problem that the existing pressure relief valve plate collides directly with the limiter, resulting in high noise and affecting the reliability of the equipment.

[0005] This utility model provides an exhaust valve plate assembly, which includes valve plates and elastic plates stacked together. The first end of the valve plate is connected to the first end of the elastic plate, the second end of the valve plate covers or opens the vent hole, the second end of the elastic plate extends toward the second end of the valve plate, and the second end of the elastic plate is provided with a curved section, which is deformably configured. When the second end of the valve plate opens the vent hole, the second end of the valve plate contacts the curved section, and the curved section deforms.

[0006] In this embodiment, the curved section is arched, with the protruding side of the curved section facing the valve plate. When the curved section deforms, it extends along the length direction of the valve plate.

[0007] In this embodiment, the second end of the elastic sheet is tilted upward relative to the second end of the valve sheet, and when the second end of the valve sheet covers the exhaust hole, there is a gap between the second end of the valve sheet and the second end of the elastic sheet.

[0008] In this embodiment, a stationary disc is also included. The first end of the valve plate and the first end of the elastic plate are both connected to the stationary disc. A groove is formed on the stationary disc, and the vent hole is formed in the groove. When the second end of the valve plate covers the vent hole, the second end of the valve plate covers the groove or partially covers the groove.

[0009] In this embodiment, the outer edge contour area of ​​the sink is larger than the outer edge contour area of ​​the second end of the valve plate, and the outer edge contour shape of the sink is adapted to the outer edge contour shape of the second end of the valve plate. When the second end of the valve plate covers the exhaust hole, the second end of the valve plate covers part of the sink.

[0010] In this embodiment, the settling tank is provided with an abutting annular platform, which divides the settling tank into an inner groove and an outer groove. The vent is opened in the inner groove. The outer edge contour area of ​​the abutting annular platform is smaller than the outer edge contour area of ​​the second end of the valve plate. When the second end of the valve plate covers the vent, with the longitudinal section of the vent valve plate assembly as the projection plane, the second end of the valve plate contacts the top surface of the abutting annular platform, and the second end of the valve plate covers the inner groove.

[0011] In this embodiment, a limiter is also included. The valve plate, the elastic plate, and the limiter are stacked from bottom to top. The first end of the valve plate, the first end of the elastic plate, and the first end of the limiter are connected by fasteners. The second end of the elastic plate and the second end of the limiter are tilted relative to the second end of the valve plate. When the second end of the valve plate covers the vent hole, there is a gap between the second end of the valve plate and the second end of the elastic plate.

[0012] In this embodiment, the longitudinal section of the exhaust valve plate assembly is used as the projection plane. Both ends of the top surface of the elastic sheet are in contact with the limiter, wherein a deformation cavity is formed between the curved section and the limiter.

[0013] In this embodiment, the longitudinal section of the exhaust valve plate assembly is used as the projection plane, and the top surface of the limiter is provided with multiple grooves spaced apart.

[0014] A compressor includes an exhaust valve plate assembly, wherein the exhaust valve plate assembly is the exhaust valve plate assembly described above.

[0015] The exhaust valve plate assembly and compressor provided by this utility model have the following beneficial effects: In this embodiment, the curved section and the valve plate are in line contact. When the impact force decreases and the valve plate falls back, the rebound effect of the elastic element and the small contact area between the valve plate and the elastic element greatly reduce the hysteresis caused by the viscous effect. When the second end of the valve plate opens or closes the exhaust port, a certain impact force is generated. The elastic deformation of the curved section can effectively buffer this impact, avoiding direct collision between the valve plate and the stationary disc surface. Direct collision will generate a lot of noise, and the buffering effect of the curved section can significantly reduce this noise. Direct collision between the valve plate and the stationary disc surface will lead to wear, especially during high-frequency operation. This wear will accelerate the aging of the equipment. The buffering effect of the curved section can reduce this wear and extend the service life of the valve plate and the stationary disc. Under the action of high-pressure gas, the valve plate may be damaged due to excessive deformation. The elastic support of the curved section can limit the excessive deformation of the valve plate and protect the valve plate from damage. The elastic deformation of the bending section ensures smoother movement of the valve plate when opening and closing the exhaust port, preventing jamming or other malfunctions caused by sudden impacts. Frequent impacts can lead to fatigue damage to the valve plate and elastic sheet; the buffering effect of the bending section reduces this fatigue and improves the reliability of the entire exhaust valve plate assembly. The elastic deformation of the bending section can be flexibly adjusted according to pressure changes in the compression chamber. When the pressure increases, the deformation of the bending section increases, and the valve plate opens the exhaust port; when the pressure decreases, the bending section returns to its original shape, and the valve plate closes the exhaust port. This flexible control can more accurately maintain the pressure in the compression chamber within the set range. Through elastic deformation, the bending section can release overpressure gas in time when the pressure is too high, preventing damage to the equipment caused by excessive pressure in the compression chamber. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the exhaust valve plate assembly according to an embodiment of the present utility model; Figure 2 This is a schematic diagram showing the valve plate, the elastic plate, and the limiter stacked from bottom to top according to an embodiment of the present utility model. Figure 3 This is a side view of the elastic sheet according to an embodiment of the present invention; Figure 4 This is a top view of the elastic sheet according to an embodiment of the present invention; Figure 5 This is a side view of the limiter according to an embodiment of the present utility model; Figure 6This is a top view of the limiter according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the settling tank according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the abutting ring platform according to an embodiment of the present utility model; Attached Figure: 1-Valve plate; 11-First end of valve plate; 12-Second end of valve plate; 2-Elastic plate; 21-First end of elastic plate; 22-Second end of elastic plate; 201-Bent section; 202-Deformation cavity; 3-Exhaust hole; 4-Stationary plate; 401-Sinking groove; 411-Abutting annular platform; 412-Inner groove; 413-Outer groove; 5-Limiter; 51-First end of limiter; 52-Second end of limiter; 501-Groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0020] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used here to describe the spatial positional relationship of a device or feature as shown in the figure with other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation of the device as described in the figure. For example, if a device in the figure is inverted, a device described as "above" or "on top of" other devices or structures will subsequently be positioned as "below" or "under" other devices or structures.

[0021] See also Figures 1 to 8 As shown, according to an embodiment of the present invention, an exhaust valve plate assembly is provided, which includes a valve plate 1 and an elastic plate 2 stacked together; the first end 11 of the valve plate 1 is connected to the first end 21 of the elastic plate 2, the second end 12 of the valve plate 1 covers or opens the exhaust hole 3, the second end 22 of the elastic plate 2 extends toward the second end 12 of the valve plate 1, and the second end 22 of the elastic plate 2 is provided with a bent section 201, which is deformably provided; when the second end 12 of the valve plate 1 opens the exhaust hole 3, the second end 12 of the valve plate 1 contacts the bent section 201, and the bent section 201 deforms.

[0022] It is worth noting that the exhaust valve plate 1 is a broader definition. In a compressor, the exhaust valve plate 1 is used to open and close the exhaust port 3, allowing the compressed gas to be discharged from the compression chamber. It is a necessary component for the compressor to complete its working cycle (intake-compression-exhaust), and it opens and closes normally in each compression cycle. More specifically, in this embodiment, the exhaust valve plate 1 is a pressure relief valve plate 1. The pressure relief valve plate 1 is installed on the stationary plate 4 and is essentially also a type of exhaust valve plate 1. Its main purpose is to release overpressured gas from the compression chamber to the high-pressure chamber or the inside of the housing according to the system pressure to prevent equipment damage (such as preventing the moving scroll plate from reversing). This type of valve plate 1 used for safe pressure relief can also be broadly classified as a type of exhaust valve plate 1.

[0023] Specifically, during the intake phase, the compression chamber between the moving scroll and the stationary scroll is in an intake state with low pressure. Due to the low pressure in the compression chamber, the second end 12 of the valve plate 1 covers the exhaust port 3 to prevent gas from flowing back from the high-pressure chamber to the compression chamber. At this time, the first end 11 of the valve plate 1 is connected to the first end 21 of the elastic plate 2, and the whole is in a stationary state. The bent section 201 of the elastic plate 2 also does not deform. As the moving scroll rotates, the volume of the compression chamber gradually decreases, and the gas pressure in the chamber continuously increases. When the pressure in the compression chamber rises to a certain level, reaching or exceeding the set opening pressure, the second end 12 of the valve plate 1 begins to lift upward and open the exhaust port 3. At this time, the second end 12 of the valve plate 1 will contact the bent section 201 of the elastic plate 2. Because the bent section 201 is deformable, it deforms under the pressure of the valve plate 1, acting as a buffer to prevent direct collision between the valve plate 1 and the surface of the stationary disc 4. High-pressure gas is discharged into the high-pressure chamber of the housing through the exhaust port 3. The second end 12 of the valve plate 1 remains open under the action of the high-pressure gas, allowing the gas to discharge smoothly. At this time, the bent section 201 of the elastic plate 2 is still in a deformed state, providing support and buffering to prevent excessive bending of the valve plate 1. When the pressure in the compression chamber drops below the set closing pressure, the valve plate 1 needs to close the exhaust port 3, and the second end 12 of the valve plate 1 begins to fall back. Because the bent section 201 of the elastic plate 2 is elastic, it returns to its original state, simultaneously causing the second end 12 of the valve plate 1 to fall back smoothly.

[0024] In this embodiment, the curved section 201 and the valve plate 1 are in line contact. When the impact force decreases and the valve plate 1 falls back, the hysteresis caused by the viscous effect can be greatly reduced due to the rebound effect of the elastic element and the small contact area between the valve plate 1 and the elastic element. When the second end 12 of the valve plate 1 opens or closes the exhaust port 3, a certain impact force will be generated. The elastic deformation of the curved section 201 can effectively buffer this impact and avoid direct collision between the valve plate 1 and the surface of the stationary disc 4. Direct collision will generate a lot of noise, and the buffering effect of the curved section 201 can significantly reduce this noise. Direct collision between the valve plate 1 and the surface of the stationary disc 4 will lead to wear, especially during high-frequency operation. This wear will accelerate the aging of the equipment. The buffering effect of the curved section 201 can reduce this wear and extend the service life of the valve plate 1 and the stationary disc 4. Under the action of high-pressure gas, the valve plate 1 may be damaged due to excessive deformation. The elastic support of the curved section 201 can limit the excessive deformation of the valve plate 1 and protect the valve plate 1 from damage. The elastic deformation of the bending section 201 ensures smoother movement of the valve plate 1 when opening and closing the exhaust port 3, avoiding jamming or other malfunctions caused by sudden impacts. Frequent impacts can lead to fatigue damage to the valve plate 1 and the elastic plate 2. The buffering effect of the bending section 201 reduces this fatigue and improves the reliability of the entire exhaust valve plate assembly. The elastic deformation of the bending section 201 can be flexibly adjusted according to pressure changes in the compression chamber. When the pressure increases, the deformation of the bending section 201 increases, and the valve plate 1 opens the exhaust port 3; when the pressure decreases, the bending section 201 returns to its original shape, and the valve plate 1 closes the exhaust port 3. This flexible control can more accurately maintain the pressure in the compression chamber within the set range. Through elastic deformation, the bending section 201 can release overpressure gas in time when the pressure is too high, preventing damage to the equipment caused by excessive pressure in the compression chamber.

[0025] In this embodiment, the main function of the elastic plate 2 is to provide buffer support for the valve plate 1. When the valve plate 1 opens the exhaust port 3 under the action of high pressure gas, the elastic plate 2 can absorb part of the impact force and reduce the direct collision between the valve plate 1 and the surface of the stationary disc 4. The movement state of the valve plate 1 directly affects the deformation degree of the elastic plate 2. The opening and closing action of the valve plate 1 will cause the elastic plate 2 to undergo corresponding elastic deformation, and the deformation of the elastic plate 2 will in turn affect the movement stability of the valve plate 1. The synergistic effect of the elastic plate 2 and the valve plate 1 enables the valve plate 1 to smoothly transition during the opening and closing process, reducing the impact and noise caused by rapid movement, while protecting the surface of the valve plate 1 and the stationary disc 4 from wear and damage. The elastic properties of the elastic plate 2 enable it to dynamically adjust according to pressure changes within the compression chamber. When the pressure increases, the elastic plate 2 deforms more, helping the valve plate 1 open the exhaust port 3. When the pressure decreases, the elastic plate 2 returns to its original shape, causing the valve plate 1 to close the exhaust port 3. The movement of the valve plate 1 is fed back to the elastic plate 2, allowing it to adjust the degree of deformation in a timely manner. This feedback mechanism enables the elastic plate 2 to more precisely control the opening and closing of the valve plate 1, thereby maintaining the pressure within the compression chamber within the set range. This dynamic feedback and adjustment mechanism between the elastic plate 2 and the valve plate 1 allows the entire exhaust valve plate assembly to more precisely control the pressure within the compression chamber, avoiding overpressure or underpressure and improving the operating efficiency and reliability of the compressor. Furthermore, the setting of the elastic plate 2 can be optimized according to the motion requirements of the valve plate 1. For example, by adjusting the thickness, length and shape of the curved section 201 of the elastic plate 2, different buffering effects and pressure control precision can be achieved. The setting of the valve plate 1 also needs to be compatible with the elastic plate 2. For example, the shape, size and material selection of the valve plate 1 need to take into account the synergistic effect with the elastic plate 2 to ensure the performance of the entire component. The optimized setting between the elastic plate 2 and the valve plate 1 makes the entire exhaust valve plate assembly more compact and efficient, reduces the number of parts, simplifies the structure and reduces manufacturing costs.

[0026] See also Figures 1 to 4 As shown, the curved section 201 is arched, with the protruding side of the curved section 201 facing the valve plate 1. When the curved section 201 deforms, it extends along the length direction of the valve plate 1.

[0027] Specifically, in the initial state (intake stage), the pressure in the compression chamber is low, the second end 12 of valve plate 1 covers the exhaust port 3, and the curved section 201 is arched with its convex side facing the valve plate 1. At this time, the curved section 201 is in its natural state and has not deformed. When the pressure reaches the set opening pressure, the second end 12 of valve plate 1 contacts the curved section 201, and the curved section 201 begins to deform. Because the curved section 201 is arched and its convex side faces the valve plate 1, when the valve plate 1 is lifted upward, the curved section 201 will be stretched along the length of the valve plate 1. The deformation of the curved section 201 plays a buffering role, absorbing part of the energy of the upward movement of the valve plate 1, and the high-pressure gas is discharged into the high-pressure chamber through the exhaust port 3. When the pressure in the compression chamber drops below the set closing pressure, the valve plate 1 needs to close the exhaust port 3, and the second end 12 of valve plate 1 begins to fall back. The elasticity of the curved section 201 restores it to its natural state. Due to the elastic restoring force of the curved section 201, the valve plate 1 can smoothly return to the position covering the exhaust port 3.

[0028] In this embodiment, the arched shape of the curved section 201 provides additional auxiliary force to the valve plate 1 during deformation. When the valve plate 1 opens, the deformation of the curved section 201 along the length of the valve plate 1 provides some assistance to the upward movement of the valve plate 1, making it easier to open the exhaust port 3. The valve plate 1 is prone to fatigue damage during frequent opening and closing. The assistance provided by the curved section 201 can reduce the stress on the valve plate 1, reduce fatigue damage, and extend the service life of the valve plate 1. The curved section 201 absorbs most of the impact force and energy during deformation, thereby reducing the direct contact and wear between the valve plate 1 and the surface of the stationary disc 4, protecting the valve plate 1 and the stationary disc 4 from damage, and improving the service life of the entire exhaust valve plate assembly. The arched curved section 201 extends along the length of the valve plate 1 during deformation. This design makes the contact between the curved section 201 and the valve plate 1 more stable, avoiding jamming caused by sudden impacts and improving the reliability of the equipment.

[0029] See also Figures 1 to 4 As shown, the second end 22 of the elastic piece 2 is tilted relative to the second end 12 of the valve piece 1. That is, in its natural state, the second end 22 of the elastic piece 2 is always tilted. When the second end 12 of the valve piece 1 covers the exhaust hole 3, there is a gap between the second end 12 of the valve piece 1 and the second end 22 of the elastic piece 2.

[0030] Specifically, during the intake phase, the pressure inside the compression chamber is low. The second end 12 of valve plate 1 covers the exhaust port 3. The second end 22 of elastic plate 2 is naturally raised, creating a gap between it and the second end 12 of valve plate 1. This gap ensures that valve plate 1 and elastic plate 2 do not contact each other in the initial state, avoiding unnecessary friction and wear. As the moving scroll plate moves, the gas pressure inside the compression chamber gradually increases. The second end 12 of valve plate 1 contacts the second end 22 of elastic plate 2, and the second end 22 of elastic plate 2 begins to deform. Since the second end 22 of elastic plate 2 was originally raised, this setting allows elastic plate 2 to transition to the deformed state more smoothly upon contact. The deformation of elastic plate 2 acts as a buffer, absorbing some of the energy from the upward movement of valve plate 1 and reducing direct collision between valve plate 1 and the surface of stationary plate 4. Because the second end 22 of elastic plate 2 was originally raised, when valve plate 1 opens the exhaust port 3, the deformation of elastic plate 2 causes the original gap to gradually decrease, but not completely disappear, thus avoiding excessive contact between valve plate 1 and elastic plate 2. When the pressure in the compression chamber drops below the set closing pressure, valve plate 1 needs to close the exhaust port 3. The second end 12 of valve plate 1 begins to fall back, and the second end 22 of elastic plate 2 gradually returns to its natural tilted state under the action of elastic restoring force. After elastic plate 2 returns to its natural tilted state, a gap is formed again between the second end 12 of valve plate 1 and the second end 22 of elastic plate 2, avoiding unnecessary contact and wear.

[0031] In this embodiment, the second end 22 of the elastic plate 2 is tilted upwards in its natural state. This means that in the initial state (inhalation phase), there is no direct contact between the elastic plate 2 and the valve plate 1. This setting reduces friction between the two. When the second end 12 of the valve plate 1 covers the exhaust port 3, there is a gap between the valve plate 1 and the elastic plate 2. This gap further ensures that the two will not contact each other in the initial state. By reducing friction, the tilting setting and the gap setting significantly reduce the wear of the valve plate 1 and the elastic plate 2, extending the service life of the components. The tilting setting of the elastic plate 2 allows it to transition to a buffer state more smoothly during deformation. When the valve plate 1 begins to lift upwards, the elastic plate 2 can respond quickly and absorb some of the impact energy. The existence of the gap ensures that the valve plate 1 will not directly contact the elastic plate 2 during the initial movement, thereby avoiding impact caused by sudden contact. When the valve plate 1 contacts the elastic plate 2, the elastic plate 2 has already begun to deform, further buffering the impact. This setting significantly reduces the direct collision between the valve plate 1 and the surface of the stationary disc 4, reduces noise, and protects the surfaces of the valve plate 1 and the stationary disc 4 from damage. The raised design of the elastic plate 2 provides more stable support during deformation. This design ensures that the movement of the valve plate 1 when opening and closing the exhaust port 3 is smoother. The raised design of the elastic plate 2 also allows for a more uniform distribution of stress during deformation, reducing local stress concentration.

[0032] In one specific implementation, the elastic sheet 2 is a leaf spring. The structural shape of the elastic sheet 2 needs to be adapted to the valve plate 1 to ensure that after the valve plate 1 is opened, the second end 12 of the valve plate 1 can contact the curved section 201. Specifically, the first end 21 of the elastic sheet 2 has a strip-shaped structure. At the position of the second end 22 of the elastic sheet 2 near the second end 12 of the valve plate 1, the elastic sheet 2 is recessed downward to form the curved section 201, so that the convex direction of the curved section 201 faces the second end 12 of the valve plate 1.

[0033] See also Figures 1 to 6 As shown, it also includes a stationary disc 4. The first end 11 of the valve plate 1 and the first end 21 of the elastic plate 2 are both connected to the stationary disc 4. A groove 401 is provided on the stationary disc 4. An exhaust hole 3 is provided in the groove 401. When the second end 12 of the valve plate 1 covers the exhaust hole 3, the second end 12 of the valve plate 1 covers the groove 401 or covers part of the groove 401.

[0034] Specifically, during the intake phase, the pressure inside the compression chamber is relatively low. The second end 12 of the valve plate 1 covers the exhaust port 3. The groove 401 allows the second end 12 of the valve plate 1 to better cover the exhaust port 3, forming a good seal. This seal prevents high-pressure gas from flowing back into the compression chamber from the exhaust port 3, ensuring the normal operation of the compressor. Depending on the exhaust requirements, the second end 12 of the valve plate 1 can be configured to cover the groove 401 or partially cover it.

[0035] In this embodiment, during the intake phase, the recess 401 ensures that the valve plate 1 completely covers the exhaust port 3, preventing high-pressure gas from flowing back into the compression chamber from the exhaust port 3, thereby ensuring the normal operation of the compressor. The recess 401 provides a buffer space, allowing the valve plate 1 to transition more smoothly when opening and closing the exhaust port 3. When the second end 12 of the valve plate 1 contacts the recess 401, the recess 401 absorbs some of the impact energy, reducing the direct collision between the valve plate 1 and the surface of the stationary plate 4. By reducing the impact, the recess 401 significantly reduces the noise level during equipment operation and improves the operational stability of the equipment. The shape and position of the recess 401 can guide the movement trajectory of the valve plate 1, making it smoother when opening and closing the exhaust port 3. By guiding the movement of the valve plate 1, the recess 401 improves the operational reliability of the entire exhaust valve plate assembly and reduces the probability of failure. The groove 401 allows the valve plate 1 to better fit the surface of the stationary plate 4 when covering the exhaust port 3, reducing the risk of gas leakage. Even under high pressure conditions, the groove 401 can effectively prevent gas from leaking from the gap between the valve plate 1 and the stationary plate 4. The groove 401 makes the entire exhaust valve plate assembly more compact, reducing the need for additional buffer devices or complex structures.

[0036] See also Figures 1 to 8As shown, the outer edge contour area of ​​the sink 401 is larger than the outer edge contour area of ​​the second end 12 of the valve plate 1, and the outer edge contour shape of the sink 401 is adapted to the outer edge contour shape of the second end 12 of the valve plate 1. When the second end 12 of the valve plate 1 covers the exhaust hole 3, the second end 12 of the valve plate 1 covers part of the sink 401.

[0037] Specifically, because the outer contour area of ​​the groove 401 is larger than that of the second end of the valve plate 1, the second end 12 of the valve plate 1 partially covers the groove 401 when covering the exhaust port 3. When the pressure reaches the set opening pressure, the second end 12 of the valve plate 1 begins to lift upwards, contacting the second end 22 of the elastic plate 2. The elastic plate 2 begins to deform. Due to the presence of the groove 401, the second end 12 of the valve plate 1 can transition more smoothly during the lifting process, avoiding violent collision with the surface of the stationary disc 4. When the pressure in the compression chamber drops below the set closing pressure, the valve plate 1 needs to close the exhaust port 3. The second end 12 of the valve plate 1 begins to fall back, and the second end 22 of the elastic plate 2 gradually returns to its naturally raised state under the action of elastic restoring force. The second end 12 of the valve plate 1 then partially covers the groove 401 again, forming a good seal.

[0038] In this embodiment, since the outer contour area of ​​the groove 401 is larger than the outer contour area of ​​the second end of the valve plate 1, the second end 12 of the valve plate 1 will cover part of the groove 401 when covering the exhaust hole 3. The groove 401 allows the valve plate 1 to be supported more stably when it is kept open. The shape and position of the groove 401 can ensure that the valve plate 1 will not vibrate or become unstable during the exhaust process. This setting ensures the sealing between the valve plate 1 and the groove 401, and can effectively prevent gas leakage even under high pressure conditions. The groove 401 and the stationary plate 4 are integrated, which reduces the number of parts and improves the overall integrity and reliability of the component.

[0039] See also Figures 1 to 8 As shown, a contact annular platform 411 is provided in the settling tank 401, which divides the settling tank 401 into an inner groove 412 and an outer groove 413. The exhaust hole 3 is opened in the inner groove 412. The outer edge contour area of ​​the contact annular platform 411 is smaller than the outer edge contour area of ​​the second end 12 of the valve plate 1. When the second end 12 of the valve plate 1 covers the exhaust hole 3, with the longitudinal section of the exhaust valve plate assembly as the projection plane, the second end 12 of the valve plate 1 contacts the top surface of the contact annular platform 411, and the second end 12 of the valve plate 1 covers the inner groove 412.

[0040] Specifically, during the intake phase, the pressure inside the compression chamber is low. The second end 12 of valve plate 1 covers the exhaust port 3, and the second end 12 of valve plate 1 contacts the top surface of the abutting annular platform 411, covering the exhaust port 3 in the inner groove 412. When the pressure reaches the set opening pressure, the second end 12 of valve plate 1 begins to lift upwards, separating from the top surface of the abutting annular platform 411, and the elastic plate 2 begins to deform. When the pressure inside the compression chamber drops below the set closing pressure, valve plate 1 needs to close the exhaust port 3. The second end 12 of valve plate 1 begins to fall back, the elastic plate 2 returns to its natural state, and the second end 12 of valve plate 1 contacts the top surface of the abutting annular platform 411 again, covering the exhaust port 3 in the inner groove 412, forming a good seal.

[0041] In this embodiment, the contact between the abutting annular platform 411 and the valve plate 1 not only covers the exhaust port 3 but also provides additional sealing support. This dual sealing mechanism significantly improves the sealing effect, especially under high-pressure conditions. The abutting annular platform 411 provides a buffer platform, reducing direct collisions between the valve plate 1 and the surface of the stationary disc 4. When the valve plate 1 opens or closes the exhaust port 3, the abutting annular platform 411 can absorb some of the impact energy, reducing wear on the valve plate 1. By reducing impact, the abutting annular platform 411 significantly reduces the noise level during equipment operation and improves the operational stability of the equipment. The abutting annular platform 411 provides a stable support platform for the movement of the valve plate 1. When the valve plate 1 opens and closes the exhaust port 3, the abutting annular platform 411 can guide the movement trajectory of the valve plate 1, making its transition smoother. Due to the presence of the abutting annular platform 411, the valve plate 1 will not directly contact the surface of the stationary disc 4 during movement, reducing the occurrence of jamming and improving operational reliability. The abutting annular platform 411 divides the settling tank 401 into an inner groove 412 and an outer groove 413. The exhaust port 3 is located in the inner groove 412. This arrangement allows the pressure in the compression chamber to be distributed more evenly, avoiding excessive deformation of the valve plate 1 due to excessive local pressure. By optimizing the pressure distribution, the abutting annular platform 411 improves the exhaust efficiency and reduces the turbulence and resistance of the gas near the exhaust port 3.

[0042] As a specific implementation, since the first end 11 of the valve plate 1 has a strip-shaped structure and the second end 12 of the valve plate 1 has a circular structure, the structural outline of the abutting annular platform 411 is adapted to the structural outline of the valve plate 1, that is, the shape of the valve plate 1 after its external structure is reduced according to a certain proportion, which can fit well with the valve plate 1. Since the sink groove 401 is opened on the stationary plate 4, the abutting annular platform 411 is formed by opening the inner groove 412 and the outer groove 413. The two grooves are not connected. After opening the two grooves, the abutting annular platform 411 is formed.

[0043] See also Figures 1 to 6As shown, it also includes a limiter 5. The valve plate 1, the elastic plate 2 and the limiter 5 are stacked from bottom to top. The first end 11 of the valve plate 1, the first end 21 of the elastic plate 2 and the first end 51 of the limiter 5 are connected by fasteners, which are bolts. The second end 22 of the elastic plate 2 and the second end 52 of the limiter 5 are tilted relative to the second end 12 of the valve plate 1. When the second end 12 of the valve plate 1 covers the exhaust hole 3, there is a gap between the second end 12 of the valve plate 1 and the second end 22 of the elastic plate 2.

[0044] Specifically, the second end 52 of the elastic plate 2 and the limiter 5 is tilted upwards in its natural state, creating a gap between it and the second end 12 of the valve plate 1. This tilting ensures no direct contact between the elastic plate 2 and the second end 52 of the limiter 5 and the second end 12 of the valve plate 1. As the moving scroll plate moves, the gas pressure in the compression chamber gradually increases, causing the second end 12 of the valve plate 1 to rise and gradually approach the second end 22 of the elastic plate 2. Because the second end 22 of the elastic plate 2 is tilted upwards, the valve plate 1 does not directly contact the elastic plate 2 during its upward movement; instead, it gradually compresses the elastic plate 2, causing it to deform and absorb some of the energy from the upward movement of the valve plate 1. The tilting of the second end 52 of the limiter 5 restricts excessive movement of the valve plate 1. When the pressure in the compression chamber drops below the set closing pressure, the valve plate 1 needs to close the exhaust port 3. After the pressure drops, the elastic plate 2 returns to its natural state, causing the second end 12 of the valve plate 1 to fall back down.

[0045] In this embodiment, during the initial state (intake stage) and the closing stage, when the second end 12 of the valve plate 1 covers the exhaust port 3, the second ends 52 of the elastic plate 2 and the limiter 5 are raised, creating a certain gap between them and the second end 12 of the valve plate 1. This arrangement avoids direct contact between the valve plate 1 and the elastic plate 2 and the limiter 5 in a static state, reducing unnecessary friction and wear. By reducing contact and friction, the raised arrangement of the elastic plate 2 and the limiter 5 significantly extends the service life of the components and reduces the maintenance frequency. During the process of the valve plate 1 opening and closing the exhaust port 3, the raised arrangement of the elastic plate 2 and the limiter 5 provides a buffering effect. When the second end 12 of the valve plate 1 contacts the second end 22 of the elastic plate 2, the deformation of the elastic plate 2 can absorb some of the impact energy, reducing the direct collision between the valve plate 1 and the surface of the stationary disc 4. By reducing impact, the buffering and vibration damping arrangement significantly reduces the noise level during equipment operation. The tilted design of the elastic plate 2 and the limiter 5 provides a more stable trajectory for the movement of the valve plate 1. When opening and closing the exhaust port 3, the valve plate 1 can transition more smoothly, reducing vibration and instability. Due to the tilted design of the elastic plate 2 and the limiter 5, the valve plate 1 will not directly contact the surface of the stationary disc 4 during movement, reducing jamming and improving operational reliability. The tilted design of the second end 22 of the elastic plate 2 allows it to respond more accurately to pressure changes in the compression chamber during deformation. When the pressure increases, the elastic plate 2 can deform rapidly, assisting the valve plate 1 in opening the exhaust port 3; when the pressure decreases, the elastic plate 2 can quickly recover its deformation, causing the valve plate 1 to close the exhaust port 3. The tilted design of the elastic plate 2 and the limiter 5 allows the entire assembly to better adapt to different operating conditions, including high-frequency operation or conditions with large pressure fluctuations. This design improves the adaptability and durability of the equipment. The second end 52 of the limiter 5 is raised to limit the excessive deformation of the elastic sheet 2. Under the action of high pressure gas, the elastic sheet 2 may undergo large deformation. The presence of the limiter 5 can prevent the elastic sheet 2 from being excessively deformed and protect the elastic sheet 2 from damage.

[0046] See also Figures 1 to 6 As shown, with the longitudinal section of the exhaust valve plate assembly as the projection plane, both ends of the top surface of the elastic sheet 2 are in contact with the limiter 5, wherein a deformation cavity 202 is formed between the bending section 201 and the limiter 5.

[0047] Specifically, the second end 12 of the valve plate 1 covers the exhaust hole 3, the top surfaces of the elastic plate 2 are in contact with the limiter 5, and the deformation cavity 202 is in a natural state, reducing friction and wear. When the pressure reaches the set opening pressure, the second end 12 of the valve plate 1 begins to lift upward, the bent section 201 of the elastic plate 2 deforms, and the deformation cavity 202 absorbs part of the deformation, reducing impact. The valve plate 1 remains open, the bent section 201 of the elastic plate 2 deforms stably in the deformation cavity 202, and the limiter 5 provides stable support, reducing vibration. When the pressure drops to the set closing pressure, the elastic plate 2 recovers its deformation, the deformation cavity 202 releases its deformation, and the limiter 5 restricts excessive movement, ensuring that the valve plate 1 smoothly covers the exhaust hole 3.

[0048] In this embodiment, the deformation cavity 202 provides additional buffer space for the bent section 201 of the elastic plate 2. When the second end 12 of the valve plate 1 opens the exhaust port 3, the bent section 201 of the elastic plate 2 deforms. The deformation cavity 202 can absorb this deformation, reducing the direct collision between the elastic plate 2 and the limiter 5. By absorbing the deformation, the deformation cavity 202 significantly reduces the impact force of the elastic plate 2 on the limiter 5 during movement, reduces noise, and protects the structural integrity of the elastic plate 2 and the limiter 5. The presence of the limiter 5 restricts the excessive deformation of the elastic plate 2. When the bent section 201 of the elastic plate 2 deforms to a certain extent, the deformation cavity 202 can prevent the elastic plate 2 from making hard contact with the limiter 5, thereby protecting the elastic plate 2 from excessive stretching or compression. By limiting excessive deformation, the setting of the limiter 5 and the deformation cavity 202 improves the service life of the elastic plate 2 and reduces fatigue damage caused by excessive deformation. The top two ends of the elastic plate 2 are fitted with the limiter 5. This arrangement provides stable support for the elastic plate 2, allowing it to deform and recover more smoothly during the movement of the valve plate 1, reducing vibration and instability. The fit of the limiter 5 guides the movement trajectory of the elastic plate 2, ensuring that it does not shift or jam during deformation and recovery, thus improving the overall reliability of the assembly. The tight fit between the top two ends of the elastic plate 2 and the limiter 5 ensures a good seal when the valve plate 1 covers the exhaust port 3, reducing the risk of gas leakage even under high pressure. The presence of the deformation cavity 202 further optimizes the sealing performance. When the elastic plate 2 deforms, the deformation cavity 202 reduces the gap between the elastic plate 2 and the limiter 5, ensuring a good seal. The fit between the top two ends of the elastic plate 2 and the limiter 5, along with the deformation cavity 202, makes the entire assembly more compact. This arrangement reduces the need for additional buffer devices or complex structures, simplifying the assembly's structure.

[0049] See also Figures 1 to 6As shown, with the longitudinal section of the exhaust valve plate assembly as the projection plane, the top surface of the limiter 5 (the side facing away from the elastic element) is provided with a plurality of grooves 501 spaced apart, and the grooves 501 penetrate the top surface of the limiter 5 along the width direction of the limiter 5.

[0050] In this embodiment, the groove 501 can be considered as multiple small buffer areas, used to prevent excessive bending of the valve plate 1 from affecting its lifespan and increasing the reliability of the structure. It also significantly reduces the impact on the fixed end of the limiter 5, thus significantly improving the overall reliability of the pressure relief valve structure. When the bent section 201 of the elastic plate 2 contacts the top surface of the limiter 5, the groove 501 can absorb some of the impact energy. By reducing the impact, the buffering effect of the groove 501 significantly reduces the noise level during equipment operation and improves the operational stability of the equipment. The presence of the groove 501 makes the pressure distribution on the top surface of the limiter 5 more dispersed, thereby avoiding damage to the limiter 5 or the stationary disc 4 due to excessive local pressure. By optimizing the pressure distribution, the presence of the groove 501 improves the reliability of the limiter 5 and the stationary disc 4, reducing the risk of damage due to local overload.

[0051] A compressor includes an exhaust valve plate assembly, wherein the exhaust valve plate assembly is the exhaust valve plate assembly described above.

[0052] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0053] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above are only preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An exhaust valve plate assembly, characterized in that, include: The valve plate (1) and the elastic plate (2) are stacked together; The first end (11) of the valve plate (1) is connected to the first end (21) of the elastic plate (2), the second end (12) of the valve plate (1) covers or opens the exhaust hole (3), the second end (22) of the elastic plate (2) extends toward the second end (12) of the valve plate (1), and the second end (22) of the elastic plate (2) is provided with a bent section (201), which is deformably provided; When the second end (12) of the valve plate (1) opens the exhaust port (3), the second end (12) of the valve plate (1) contacts the curved section (201), and the curved section (201) deforms.

2. The exhaust valve plate assembly according to claim 1, characterized in that, The curved section (201) is arched, and the protruding side of the curved section (201) faces the valve plate (1). When the curved section (201) is deformed, the curved section (201) extends along the length direction of the valve plate (1).

3. The exhaust valve plate assembly according to claim 2, characterized in that, The second end (22) of the elastic sheet (2) is tilted relative to the second end (12) of the valve sheet (1). When the second end (12) of the valve sheet (1) covers the exhaust hole (3), there is a gap between the second end (12) of the valve sheet (1) and the second end (22) of the elastic sheet (2).

4. The exhaust valve plate assembly according to claim 1, characterized in that, It also includes a stationary plate (4), the first end (11) of the valve plate (1) and the first end (21) of the elastic plate (2) are both connected to the stationary plate (4), the stationary plate (4) is provided with a groove (401), the groove (401) is provided with an exhaust hole (3), when the second end (12) of the valve plate (1) covers the exhaust hole (3), the second end (12) of the valve plate (1) covers the groove (401) or covers part of the groove (401).

5. The exhaust valve plate assembly according to claim 4, characterized in that, The outer contour area of ​​the sink (401) is larger than the outer contour area of ​​the second end (12) of the valve plate (1), and the outer contour shape of the sink (401) is adapted to the outer contour shape of the second end (12) of the valve plate (1). When the second end (12) of the valve plate (1) covers the exhaust hole (3), the second end (12) of the valve plate (1) covers part of the sink (401).

6. The exhaust valve plate assembly according to claim 5, characterized in that, The settling groove (401) is provided with an abutting annular platform (411), which divides the settling groove (401) into an inner groove (412) and an outer groove (413). The exhaust hole (3) is opened in the inner groove (412). The outer edge contour area of ​​the abutting annular platform (411) is smaller than the outer edge contour area of ​​the second end (12) of the valve plate (1). When the second end (12) of the valve plate (1) covers the exhaust hole (3), with the longitudinal section of the exhaust valve plate assembly as the projection plane, the second end (12) of the valve plate (1) contacts the top surface of the abutting annular platform (411), and the second end (12) of the valve plate (1) covers the inner groove (412).

7. The exhaust valve plate assembly according to claim 1, characterized in that, It also includes a limiter (5), the valve plate (1), the elastic plate (2) and the limiter (5) are stacked from bottom to top, the first end (11) of the valve plate (1), the first end (21) of the elastic plate (2) and the first end (51) of the limiter (5) are connected by fasteners, the second end (22) of the elastic plate (2) and the second end (52) of the limiter (5) are tilted relative to the second end (12) of the valve plate (1); when the second end (12) of the valve plate (1) covers the exhaust hole (3), there is a gap between the second end (12) of the valve plate (1) and the second end (22) of the elastic plate (2).

8. The exhaust valve plate assembly according to claim 7, characterized in that, With the longitudinal section of the exhaust valve plate assembly as the projection plane, both ends of the top surface of the elastic sheet (2) are in contact with the limiter (5), wherein a deformation cavity (202) is formed between the bending section (201) and the limiter (5).

9. The exhaust valve plate assembly according to claim 7, characterized in that, With the longitudinal section of the exhaust valve plate assembly as the projection plane, the top surface of the limiter (5) is provided with a plurality of grooves (501) spaced apart.

10. A compressor comprising an exhaust valve plate assembly, characterized in that, The exhaust valve plate assembly is the exhaust valve plate assembly according to any one of claims 1 to 9.

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