Low-noise exhaust valve structure

Abstract

The utility model discloses a low-noise exhaust valve structure, which comprises a static disc, at least one exhaust hole and at least one annular groove, and lubricating oil is contained in the annular groove; the limiting mechanism is fixedly arranged on the outer side of the static disc, one end of the limiting mechanism is arranged on the static disc, and the other end of the limiting mechanism tilts outwards; the valve plate comprises a bouncing part and a connecting part, and the connecting part of the valve plate is fixed between the static disc and the limiting piece; in the first state, the bouncing part can abut against and cover all the exhaust holes and the annular groove towards the static disc face, in the second state, the bouncing part can abut against the limiting part away from the static disc face, and in the process of changing from the second state to the first state, the valve block makes contact with lubricating oil with certain liquid tension firstly. According to the structure of the exhaust valve, noise in the operation process of the exhaust valve can be reduced through the annular groove formed in the outer side of the exhaust hole and used for injecting oil, and the sensitivity of the exhaust valve is improved on the basis that the sealing performance is guaranteed.

Description

Technical Field

[0001] The utility model relates to a low-noise exhaust valve structure, belonging to the technical field of compressors. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] The exhaust valve of the compressor is an important component of the air-conditioning compressor. It is located at the exhaust port of the compressor. Its function is to open at the end of the compression process to discharge the compressed refrigerant from the compression chamber. The exhaust valve usually includes an exhaust valve plate, which opens and closes under the action of the pressure difference to control the in and out of the gas. The quality and performance of the exhaust valve plate directly affect the exhaust volume, power consumption and operating reliability of the compressor. The life of the exhaust valve plate also determines the continuous operation time of the compressor.

[0004] In the existing air conditioner exhaust valve structure, when the compressor is working, the exhaust valve plate pops up and generates a strong impact force with the stopper. During the impact, the exhaust valve plate or the stopper will vibrate and generate noise, or after the exhaust is completed, the exhaust valve plate will reset, impacting the static plate and generating noise, which has a certain impact on the environment. In addition, due to the repeated rigid collision of the exhaust valve plate, the life of the exhaust valve is also affected to a certain extent. At the same time, due to the aging of the exhaust valve plate, the exhaust valve plate may be adsorbed on the static plate during use. In the subsequent exhaust process, the ejection of the exhaust valve plate may be hindered, reducing the sensitivity of the exhaust valve and affecting the working efficiency of the exhaust valve.

[0005] Currently there is no low-noise exhaust valve structure that can solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a low-noise exhaust valve structure, which can reduce the noise during the operation of the exhaust valve by arranging an annular groove for oil injection on the outer side of the exhaust hole, and improve the sensitivity of the exhaust valve while ensuring the sealing performance.

[0007] In order to achieve the above-mentioned object, the utility model discloses the following low-noise exhaust valve structure, wherein the low-noise exhaust valve structure comprises:

[0008] A stationary plate, wherein the stationary plate comprises an exhaust hole and an annular groove, wherein the annular groove is arranged on the outer side of the stationary plate, and the annular groove is arranged on the outer periphery of the exhaust hole, the annular groove is recessed toward the inner side of the stationary plate, and the annular groove contains lubricating oil; the stationary plate comprises at least one exhaust hole and at least one annular groove, wherein the annular groove is correspondingly arranged on the outer side of the exhaust hole, the annular groove is recessed toward the inner side of the stationary plate, and the annular groove contains lubricating oil;

[0009] A limiting mechanism, wherein the limiting mechanism is fixedly arranged on the outer side of the static disk, the limiting mechanism comprises a limiting member and a fastener, the outer side of the static disk further comprises a fixing hole, the limiting member comprises a limiting portion and a fixing portion, the fixing portion comprises a first hole, the limiting member tilts up from the fixing portion to the limiting portion in a direction away from the static disk, so that a preset gap exists between the limiting portion and the static disk, the fixing hole and the first hole are matched with the fastener respectively, the fastener is passed through the fixing hole and the first hole, so that the limiting member is fixed on the outer side of the static disk; one end of the limiting mechanism is arranged on the static disk, and the other end tilts up outward;

[0010] A valve plate, the valve plate comprising a spring portion and a connecting portion, the connecting portion comprising a second hole, the second hole matching the fastener, so that the valve plate is fixed between the static plate and the stopper by the connecting portion of the fastener;

[0011] The valve plate has a certain elasticity, so that in a first state of non-exhaust state, the pop-up portion can press against and cover all of the exhaust holes and the annular grooves toward the static disk surface, and in a second state of exhaust state, the pop-up portion can press against the limiting portion away from the static disk surface. In the process of changing from the second state to the first state, the valve plate first contacts the lubricating oil with a certain liquid tension.

[0012] Further, the limiting mechanism includes a limiting member and a fastener, the outer side of the static disk also includes a fixing hole, the limiting member includes a limiting portion and a fixing portion, the fixing portion includes a first hole, the limiting member tilts from the fixing portion toward the limiting portion away from the static disk, so that a preset gap is provided between the limiting portion and the static disk, the fixing hole and the first hole respectively match the fastener, the fastener passes through the fixing hole and the first hole, so that the limiting member is fixed to the outer side of the static disk; the connecting portion of the valve plate includes a second hole, and the second hole matches the fastener.

[0013] Furthermore, the valve plate is bent from the connecting portion to the spring-up portion in a direction toward the stationary disk.

[0014] Furthermore, the stationary disk includes a plurality of the exhaust holes and the annular grooves, and the valve plate includes a spring-loaded portion matching the number of the exhaust holes and the annular grooves.

[0015] Furthermore, the number of the exhaust holes, the annular grooves and the pop-up parts is three, wherein the middle group of the exhaust holes, the annular grooves and the pop-up parts have larger sizes, and the two groups of the exhaust holes, the annular grooves and the pop-up parts on both sides have smaller sizes.

[0016] Furthermore, there is a preset gap between each of the pop-up parts.

[0017] Further, in the second state, the valve plate is fitted with the limiting mechanism, and the outer contours of the valve plate and the limiting mechanism match.

[0018] Furthermore, the annular groove is configured to be circular.

[0019] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0020] 1. The low-noise exhaust valve structure of the utility model can form a fine oil film through the lubricating oil in the annular groove provided on the outer side of the exhaust hole during the fitting and separation process of the valve plate and the static disk. Even if the valve plate is not completely fitted with the static disk under some circumstances, the isolation between the valve plate and the static disk can still be ensured. Under the premise of ensuring the sealing effect of the exhaust valve, the obstruction to the ejection of the valve plate can be significantly reduced, the sensitivity of the ejection of the valve plate can be improved, and the working efficiency of the exhaust valve can be further enhanced.

[0021] 2. The valve plate of the low-noise exhaust valve structure of the utility model has a bent inwardly concave arc, so that the valve plate reduces the rigid collision between the valve plate and the static disk and reduces the noise through the elasticity of its own metal in the first state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 is an exploded view of a low-noise exhaust valve structure provided in an embodiment of this specification;

[0024] Figure 2 is a cross-sectional view of a low-noise exhaust valve structure provided in an embodiment of this specification;

[0025] In the figure: 1, static disk; 11, exhaust hole; 12, annular groove; 13, fixing hole; 2, limiting mechanism; 21, limiting member; 211, limiting part; 212, fixing part; 2121, first hole; 22, fastener; 3, valve plate; 31, pop-up part; 32, connecting part; 321, second hole. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0027] In the description of the present utility model, it should be noted that the terms "upper", "middle", "lower", "inner", "outer", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following describes the implementation method of the present utility model based on its overall structure.

[0028] See also Figure 1-2 , is a low noise exhaust valve structure of this embodiment, which includes:

[0029] The stator plate 1 comprises an exhaust hole 11 and an annular groove 12. The annular groove 12 is arranged on the outer side of the stator plate 1 and the annular groove 12 is arranged on the outer periphery of the exhaust hole 11. The annular groove 12 is recessed toward the inner side of the stator plate 1 and contains lubricating oil.

[0030] The limiting mechanism 2 is fixedly arranged on the outside of the static plate 1, one end of the limiting mechanism 2 is arranged on the static plate 1, and the other end is tilted outward;

[0031] The valve plate 3 includes a spring portion 31 and a connecting portion 32, so that the connecting portion 32 of the valve plate 3 is fixed between the static plate 1 and the limiting member 21;

[0032] Among them, the valve plate 3 has a certain elasticity, so that in the first state, the pop-up portion 31 can press against and cover all the exhaust holes 11 and the annular grooves 12 toward the surface of the static disk 1, and in the second state, the pop-up portion 31 can press against the limiting portion 211 away from the surface of the static disk 1. In the process of changing from the second state to the first state, the valve plate 3 first contacts the lubricating oil with a certain liquid tension.

[0033] Through the above structure, when in use, it is only necessary to cover the valve plate 3 on the exhaust hole 11 and the annular groove 12 of the static plate 1 by default, and keep the above state as the initial position, and the air conditioning compressor can be started. In the second state, when gas or other refrigerant is discharged from the inside of the static plate 1 to the outside of the static plate 1 through the exhaust hole 11, the valve plate 3 outside the exhaust hole 11 will be pushed up by the pressure from the gas to the outside, and elastically deformed toward the outside of the static plate 1. At this time, the elastically deformed valve plate 3 is pushed up to fit with the limiting part 211 in the limiting mechanism 2, so that the limiting part 211 limits the further deformation of the valve plate 3 under the action of pressure during the exhaust process. At this time, the deformation angle of the valve plate 3 is consistent with the tilting angle of the limiting member 21, which meets the preset requirements, and the valve plate 3 will not be broken or produce excessive collision noise. When in the first state, the air conditioning compressor is paused or stops running, and the gas stops being discharged from the inner side of the stator plate 1 to the stator plate 1 through the exhaust hole 11. At this time, the side of the valve plate 3 facing the stator plate 1 quickly loses air pressure, and the valve plate 3 stops changing and resets, so that the pop-up portion 31 on one side of the valve plate 3 fits and covers the exhaust hole 11 and the annular groove 12 of the stator plate 1 again.

[0034] In the above process, in the second state, when the valve plate 3 is deformed and lifted, since the pop-up portion 31 of the valve plate 3 abuts or approaches the annular groove 12, and since the annular groove 12 includes lubricating oil pre-filled and contained in the recessed area, during the change from the second state to the first state, the valve plate 3 first contacts the lubricating oil with a certain liquid tension. The physical characteristics of the liquid surface tension and viscosity of the lubricating oil make it possible for a circle of fine oil film to be formed between the static plate 1 and the pop-up portion 31 even if the pop-up portion 31 is not completely attached to the static plate 1. The formation of the oil film has an excellent auxiliary physical isolation effect on the static plate 1 and the valve plate 3, so that the air tightness of the low-noise exhaust valve structure in this embodiment is improved, and the lubricating oil with liquid tension has a certain buffering effect during the downward pressure of the valve plate 3. At the same time, the lubricating oil can also form a certain lubricating effect on the contact surface between the stator plate 1 and the valve plate 3 in the present embodiment, reducing unnecessary rigid collision and friction of the valve plate 3 on the stator plate 1 during the opening and closing process, and avoiding the possible obstruction of the stator plate 1 to the valve plate 3 when the valve plate 3 bounces up.

[0035] At the same time, in this embodiment, the above beneficial technical effects are achieved only by setting the annular groove 12, and the problems of high noise in the existing exhaust valve and insensitive movement of the valve plate 3 are solved, but no additional equipment and structure are added. Compared with the existing exhaust valve noise reduction solutions, the structure of the utility model can reduce the assembly steps of the exhaust valve structure, reduce unnecessary parts costs, and reduce the precision requirements of assembly by reducing parts, which can significantly improve the yield rate.

[0036] Furthermore, the valve plate 3 is bent from the connecting portion 32 to the spring-up portion 31 toward the static disk 1, so that the valve plate 3 as a whole has a prefabricated bending arc that bulges toward the outside of the static disk 1. Through the arc of the valve plate 3, it can be achieved that when in the first state, the valve plate 3 can be tightly attached to the static disk 1. Due to the elastic characteristics of the metal material of the valve plate 3 itself, the rigid collision between the valve plate 3 and the static disk 1 is further reduced. When the valve plate 3 suddenly contacts the static disk 1, part of the dynamic potential energy can be converted into elastic deformation of the valve plate 3, thereby playing a role in eliminating noise.

[0037] Further, the limiting mechanism 2 includes a limiting member 21 and a fastener 22, the outer side of the static disk 1 also includes a fixing hole 13, the limiting member includes a limiting portion 211 and a fixing portion 212, the fixing portion 212 includes a first hole 2121, the limiting member 21 tilts from the fixing portion 212 to the limiting portion 211 in a direction away from the static disk 1, so that a preset gap exists between the limiting portion 211 and the static disk 1, the fixing hole 13 and the first hole 2121 match the fastener 22 respectively, the fastener 22 passes through the fixing hole 13 and the first hole 2121, so that the limiting member 21 is fixed to the outer side of the static disk 1, and the connecting portion 32 of the valve plate 3 includes a second hole 321, and the second hole 321 matches the fastener 22. Of course, in another embodiment, the valve plate 3 can be movably connected to the static disk 1 in the form of a roller, as long as the valve plate 3 can be opened and closed freely.

[0038] Further, in this embodiment, the stationary plate 1 includes a plurality of exhaust holes 11 and annular grooves 12, and the valve plate 3 includes spring-up portions 31 matching the number of exhaust holes 11 and annular grooves 12. Specifically, the number of exhaust holes 11, annular grooves 12 and spring-up portions 31 is three. Figure 1 As shown, each pop-up portion 31 is independent and does not contact each other, so that every two pop-up portions 31 together form a V-shape. On the basis of the three pop-up portions 31, the valve plate 3 in this embodiment forms a tree branch shape with three branches. That is to say, in this embodiment, the same valve plate 3 body achieves the effect of shielding three exhaust holes 11 at the same time, and has little effect on the shielding effect of the exhaust holes 11, further saving material costs. The exhaust holes 11, annular grooves 12 and pop-up portions 31 in the middle group have larger sizes, while the two groups of exhaust holes 11, annular grooves 12 and pop-up portions 31 on both sides have smaller sizes, so that when the three groups of valve plates 3 move together, they are more balanced and stable.

[0039] It is worth noting that in this embodiment, in the second state, the valve plate 3 fits with the stopper 21, and the outer contours of the valve plate 3 and the stopper 21 match. In other words, the valve plate 3 and the stopper 21 have a consistent projection surface. Through the above structure, the valve plate 3 can have a larger collision contact area during the fitting process of the valve plate 3 and the stopper 21, and the material volume of the stopper 21 is not too large, thereby further reducing the noise on the basis of controlling the cost.

[0040] Furthermore, if Figure 1 As shown, the annular groove 12 is set to be circular, and the center of the circular annular groove 12 is consistent with the circular exhaust hole 11. When the circular annular groove 12 is pressed and impacted by the spring-up portion 31, the force dispersion effect is most uniform, which helps to further reduce noise, and the circular annular groove 12 is also simpler and more reliable in terms of processing technology.

[0041] Although different specific embodiments are mentioned in the content of this application, this application is not limited to the situations described in the industry standards or embodiments, etc. Some industry standards or slightly modified implementation plans based on the implementation of the custom methods or embodiments can also achieve the same, equivalent or similar, or predictable implementation effects after deformation of the above embodiments. The embodiments of data acquisition, processing, output, judgment methods, etc. after these modifications or deformations can still fall within the scope of the optional implementation plans of this application.

[0042] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and changes to the present application without departing from the spirit of the present application. It is intended that the attached embodiments include these modifications and changes without departing from the present application.

Claims

1. A low noise exhaust valve structure, characterized in that: The low noise exhaust valve structure comprises: A stationary plate, the stationary plate comprising at least one exhaust hole and at least one annular groove, the annular groove being arranged on the outer side of the exhaust hole, the annular groove being recessed toward the inner side of the stationary plate, and the annular groove containing lubricating oil; A limiting mechanism, wherein the limiting mechanism is fixedly arranged on the outer side of the static plate, one end of the limiting mechanism is arranged on the static plate, and the other end is tilted outward; A valve plate, the valve plate comprising a spring portion and a connecting portion, the connecting portion of the valve plate being fixed between the static plate and the limiting member; Among them, the valve plate has a certain elasticity, so that in the first state, the pop-up part can press against and cover all the exhaust holes and the annular grooves toward the static disk surface, and in the second state, the pop-up part can press against the limiting part away from the static disk surface. In the process of changing from the second state to the first state, the valve plate first contacts with the lubricating oil with a certain liquid tension.

2. The low noise exhaust valve structure according to claim 1, characterized in that: The limiting mechanism includes a limiting member and a fastener, the outer side of the static disk also includes a fixing hole, the limiting member includes a limiting portion and a fixing portion, the fixing portion includes a first hole, the limiting member tilts from the fixing portion toward the limiting portion away from the static disk, so that a preset gap is provided between the limiting portion and the static disk, the fixing hole and the first hole respectively match the fastener, the fastener passes through the fixing hole and the first hole, so that the limiting member is fixed to the outer side of the static disk; the connecting portion of the valve plate includes a second hole, and the second hole matches the fastener.

3. The low noise exhaust valve structure according to claim 1, characterized in that: The valve plate is bent from the connecting portion to the spring-up portion toward the static disk.

4. The low noise exhaust valve structure according to claim 1, characterized in that: The stationary disk includes a plurality of the exhaust holes and the annular grooves, and the valve plate includes a spring-lifting portion matching the number of the exhaust holes and the annular grooves.

5. The low noise exhaust valve structure according to claim 4, characterized in that: The number of the exhaust holes, the annular grooves and the pop-up parts is three, wherein the middle group of the exhaust holes, the annular grooves and the pop-up parts have larger sizes, and the two groups of the exhaust holes, the annular grooves and the pop-up parts on both sides have smaller sizes.

6. The low noise exhaust valve structure according to claim 4, characterized in that: There is a preset gap between each of the spring-up parts.

7. The low noise exhaust valve structure according to claim 1, characterized in that: In the second state, the valve plate is in contact with the limiting mechanism, and the outer contours of the valve plate and the limiting mechanism match.

8. The low noise exhaust valve structure according to claim 1, characterized in that: The annular groove is arranged in a circular shape.

Images